CONNECTOR ASSEMBLY CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Chinese Patent Application No.CN201610228481.0 filed on April 13, 2016 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

Field of the Invention The present invention relates to a robot assembling system for a connector assembly, a method of assembling the connector assembly, and a robot.

Description of the Related Art In the prior art, there is a connector assembly comprising a cage, a contact and a light guide pipe. The cage comprises an outer cage, a middle vertical partition plate and two horizontal partition plates connected to each side of the middle vertical partition plate. The middle vertical partition plate and the horizontal partition plates are constructed to divide an inner space of the cage into a plurality of chambers. The connector assembly may comprise a plurality of contacts mounted in respective chambers of the cage. The light guide pipe is mounted on the contact and located in a space defined between the horizontal partition plates when the contact is mounted to the cage.

Typically, there are two types of connector assembly with such configuration. One type of connector assembly generally comprises two contacts mounted in two chambers which are defined at left and right sides of the cage and separated by the middle vertical partition plate. The two contacts each comprises a first light guide pipe and a second light guide pipe which are integrated together by a connection member at ends of the first and second light guide pipes. The other type of connector assembly also comprises two contacts mounted in two chambers which are defined at left and right sides of the cage and separated by the middle vertical partition plate. Each of the two contacts comprises a light guide pipe. A protrusion is formed at an inner side of two horizontal partition plates at each side of the middle vertical partition plate of the cage, and the protrusion is located on a passing path of the light guide pipe. In the prior art, operation of assembling the light guide pipe and the contact together to form a contact sub-assembly and assembling the contact sub-assembly and the cage together to form the connector assembly are all performed by manual. However, the efficiency of the whole assembly operation is very low, and during assembling, the contact sub-assembly, especially the light guide pipe, may easily collide with the cage, thus damaging the light guide pipe.

SUMMARY OF THE INVENTION The present invention has been made to overcome or alleviate at least one aspect of the above mentioned disadvantages.

According to an aspect of the present invention, there is provided a robot assembling system for a connector assembly. The connector assembly comprises: a cage comprising an outer cage, a middle vertical partition plate, and at least two horizontal partition plates connected to each side of the middle vertical partition plate, the middle vertical partition plate and the horizontal partition plates dividing an inner space of the cage into a plurality of chambers; a contact mounted in a respective chamber of the cage; and a light guide pipe mounted on the contact and extending into a space defined between the horizontal partition plates. The robot assembling system comprises: a first assembling workstation configured to assemble the contact and the light guide pipe to form a contact subassembly; a second assembling workstation configured to assemble the contact subassembly and the cage to form a connector assembly; and a robot configured to transmit the cage, the light guide pipe, the contact or the contact subassembly between respective assembling workstations, and assist an assembling operation at each assembling workstation.

According to another aspect of the present invention, there is provided a method of assembling a connector assembly by the above robot assembly system, comprising steps of:

S I: clamping the contact and loading the contact to the contact loading portion of the first assembling workstation by the first tool of the robot;

S2: clamping the first light guide pipe and loading the first light guide pipe to the contact by the second tool of the robot;

S3: clamping the second light guide pipe and loading the second light guide pipe to the contact by the third tool of the robot;

S4: clamping the connection member and loading the connection member to the connection member loading portion by the fourth tool of the robot;

S5: moving the connection member loading portion toward the contact loading portion on the first assembling workstation, so that the connection member are assembled to ends of the first and second light guide pipes to form the first contact subassembly;

S6: repeating the above steps S 1-S5 to form the second contact subassembly; S7: clamping the cage and loading the cage to the cage loading portion of the second assembling workstation by the fifth tool of the robot;

S8: clamping the two contact subassemblies arranged side by side and placing the two contact subassemblies on a loading position aligned to the cage by the fifth tool of the robot; and

S9: assembling the two contact subassemblies to the cage to form the connector assembly

According to another aspect of the present invention, there is provided a method of assembling a connector assembly by the above robot assembly system, comprising steps of:

S I: clamping the contact and loading the contact to the contact loading portion of the first assembling workstation by the first tool of the robot;

S2: clamping the light guide pipe and loading the light guide pipe to the contact by the second tool of the robot, so as to form the first contact subassembly;

S3: repeating the above steps S 1-S2 to form the second contact subassembly;

S4: clamping the cage and loading the cage to the cage loading portion of the second assembling workstation by the third tool of the robot;

S5: clamping the two contact subassemblies arranged side by side and placing the two contact subassemblies on a loading position aligned to the cage by the third tool of the robot; and

S6: assembling the two contact subassemblies to the cage to form the connector assembly

According to another aspect of the present invention, there is provided a robot comprising a rotatable operating mechanism, the rotatable operating mechanism comprising: a rotary disc; and a plurality of tools arranged on the rotary disc along a circumferential direction of the rotary disc and adapted to manipulate different operation objects. When the rotary disc is rotated to an operation position of one tool of the plurality of tools, the one tool is adapted to manipulate the operation object, and the other of the plurality of tools are in a non operation position.

In the above various exemplary embodiments of the present invention, the robot assembling system and method as well as the robot may automatically assemble of the connector assembly, and it greatly improves the efficiency of assembling the connector assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which: Fig.1 is a general schematic view of various components of a robot assembling system according to an embodiment of the present invention;

Fig.2 shows a working state of a first operating mechanism of the robot shown in

Fig. l ;

Fig.3 shows a working state of a second operating mechanism of the robot shown in

Fig. l ;

Fig.4 is an exploded perspective view of a first connector assembly adapted to be assembled by the robot assembling system of Fig. l ;

Fig.5 is an exploded perspective view of a second connector assembly adapted to be assembled by the robot assembling system of Fig.1 ;

Fig.6 is a perspective view of a storage tray for storing cages and contact sub-assemblies in the robot assembling system of Fig. l ;

Fig.7 is a perspective view of a storage tray for storing cages, light guide pipes, connection members, rear covers, and the like in the robot assembling system of Fig. l ;

Fig.8 is an illustrative view of picking up the first light guide pipe from the storage tray by the robot;

Fig.9 shows a state of the first light guide pipe being clamped by a second tool of the first operating mechanism of the robot;

Fig.10 shows a state of the second light guide pipe being clamped by a third tool of the first operating mechanism of the robot;

Fig.11 is an illustrative view of picking up the second light guide pipe from the storage tray by the robot;

Fig.12 is an illustrative view of picking up the contact from the storage tray by the robot;

Fig.13 is an illustrative view of loading the contact to a loading portion of the first assembling workstation by a first gripper of the first operating mechanism;

Figs.14-15 are illustrative views of loading the first light guide pipe to the contact by a second gripper of the first operating mechanism;

Figs.16-17 are illustrative views of loading the second light guide pipe to the contact by a third gripper of the first operating mechanism;

Fig.18 is an illustrative view of moving up the contact holding portion of the first assembling workstation to clamp the contact;

Fig.19 is an illustrative view of pushing the connection member toward the contact by a connection member loading portion of the first assembling workstation;

Fig.20 is an illustrative view of an air nuzzle block on the connection member loading portion;

Fig.21 is an illustrative view of loading the cage to a loading portion of the second assembling workstation by a fourth gripper of the first operating mechanism; Fig.22 is an illustrative view showing that the cage has been loaded on the loading portion of the second assembling workstation;

Fig.23 is a perspective view showing that a guiding mechanism of the second assembling workstation is moved into the cage;

Fig.24 is a local cross section view of the guiding mechanism of Fig.23;

Fig, 25 is a cross section view showing that the guiding mechanism of Fig, 3 is in a closed state;

Figs.26-27 are enlarged views showing details of the guiding mechanism;

Fig.28 is an illustrative view of loading two contact sub-assemblies arranged side by side to the cage on the second assembling workstation by a fifth gripper of the first operating mechanism;

Fig.29 is a cross section view of inserting the two contact sub-assemblies into the cage;

Fig.30 is a local enlarged view of the guiding mechanism of Fig.29;

Fig. 31 is a cross section view of a state of collision between the connection member of the light guide pipe and a horizontal partition plate of the cage when the guiding mechanism is not in work;

Fig.32 is a cross section view of pushing the contact sub-assembly to an installation location in the cage by a gripper of the first operating mechanism;

Fig.33 is a cross section view showing the second connector assembly shown in Fig, 5;

Fig.3 is an illustrative view of the tool for the contact subassembly of the second connector assembly;

Figs.35-36 show protrusion at an inner side of the horizontal partition plate in the cage of the second connector assembly;

Figure 37 is an illustrative view showing the collision between the protrusion of the cage and the light guide pipe in the absence of the guiding mechanism;

Figs, 38-39 are illustrative views of guiding the insertion of the light guide pipe by the guiding pin of the second assembling workstation;

Fig 40 shows that the guiding pin is moved up to a work position;

Fig. 41 shows that the guiding pin is moved down to a spare position;

Fig. 42 is an illustrative view of the gripper of the first operating mechanism of the robot;

Figs. 3-44 show of a process of pushing the two contact sub-assemblies to form a gap between the two contact sub-assemblies by a sixth gripper of the first operating mechanism;

Figs. 45-46 show of a process of pushing the two contact sub-assemblies into the cage by another gripper of the first operating mechanism; and

Fig. 47 is a cross section view of Fig. 46. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE

IVENTION

Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed

embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

Fig.1 is a general schematic view of various components of a robot assembling system according to an embodiment of the present invention. As shown in Fig. l, in an embodiment, the robot assembling system mainly comprises: a first assembling workstation 1 configured to assemble a contact and light guide pipes to form a contact sub-assembly; a second assembling workstation 2 configured to assemble the contact sub-assembly and the cage to form a connector assembly; and a robot 3 configured to transmit the cage, the light guide pipes, the contact or the contact sub-assembly between respective assembling workstations, and assist an assembly process at each assembling workstation. The robot 3 may be configured to identify components based on the preset program, so as to control the gripper to grip the corresponding component, and place the gripped component on a predetermined position.

As shown in Figs.1-3, the robot 3 the robot comprises a rotatable operating mechanism.

The rotatable operating mechanism comprises a rotary disc 30, and a plurality of tools 31-36 arranged on the rotary disc 30 along a circumferential direction of the rotary disc 30 and adapted to manipulate different operation objects. When the rotary disc 30 is rotated to an operation position of one of the plurality of tools 31-36, the one tool is adapted to manipulate the operation object, and the others of the plurality of tools 31-36 are in a non operation position. According to the above configuration, it may quickly switch tools for different operation objects by rotating the rotary disc 30. The tool in work may be rotated to the lowest position for performing the picking and assembling operations, the other tools may be rotated to other positions to avoid interference. In this way, with such configuration, it may save space and allow the robot to carry more tools in a limited space to perform the assembly operations.

In an embodiment, the robot 3 may comprise a plurality of interchangeable operating mechanisms 3a (see Fig.2) and 3b (see Fig.3) configured to assemble different types of connector assemblies, respectively. In this way, it may facilitate assembling different types of connector assemblies.

Fig.2 shows a working state of a first operating mechanism 3a of the robot 3 shown in Fig. l. The first operating mechanism 3a shown in Fig.2 is used to assemble the first connector assembly 6a shown in Fig.4. As shown in Fig.4, the first connector assembly 6a comprises two contacts 61a (61) mounted in two chambers which are located at left and right sides of the cage 62 and separated by the middle vertical partition plate 63(63a). The contacts 61a ( 61 ) each comprises a first light guide pipe 64 and a second light guide pipe 65 which are integrated together by a connection member 66 at ends of the first and second light guide pipes.

In order to assemble the first connector assembly 6a, the first assembling workstation 1 shown in Fig.l comprises: a contact loading portion 11 (see Fig.13) configured to load the contact 61; and a connection member loading portion 12 (Fig.18) configured to load the connection member 66. The second assembling workstation 2 comprises a cage loading portion 21 (see Fig.22) configured to load the cage 62 (62a). The second assembling workstation 2 may further comprise a locking mechanism configured to lock the cage 62 in a horizontal direction and a vertical direction.

As shown in Fig.2, the plurality of tools of the robot 3 comprises a first tool 31 configured to clamp the contact 61 and load the contact 61 to the contact loading portion, a second tool 32 configured to clamp the first light guide pipe 64 and load the first light guide pipe 64 to the contact 61, a third tool 33 configured to clamp the second light guide pipe 65 and load the second light guide pipe 65 to the contact 61, a fourth tool 34 configured to clamp the connection member 66 and load the connection member 66 to the connection member loading portion, a fifth tool 35 configured to clamp the cage 62 and load the cage 62 to the cage loading portion, and a sixth tool 36 configured to perform an auxiliary function. It should be appreciated for those skilled in this art that the number and type of the tools mounted on the first operating mechanism 3 a may be increased or decreased as needed.

The tools 31-36 on the first operating mechanism 3a each has a mating structure mated with a structure of a respective component to be gripped, so as to grip the respective component. For example, Fig.9 shows a state of the first light guide pipe being clamped by a second tool of the first operating mechanism of the robot. As shown in Fig.9, the second tool 32 comprises two claws 40. Each of the two claws 40 is provided with a slot, which has a size and a shape corresponding to those of the first light guide pipe 64, to receive two legs of the first light guide pipe 64 therein. The two claws 40 are configured to be moved toward or away from each other. When the two claws 40 are moved away from each other by a certain distance, the two claws 40 may reliably hold the two legs of the light guide pipe 64. The second tool 32 may further comprise a supporting member 39 configured to support the first light guide pipe 64. A protruding rib 42 is formed on the supporting member 39, and a groove for positioning a lateral rod 41 of the light guide pipe 64 is formed in the protruding rib 42. In this way, the first light guide pipe 64 may be precisely positioned and held.

Fig.10 shows a state of the second light guide pipe being clamped by a third tool of the first operating mechanism of the robot. As shown in Fig.10, the third tool 33 comprises two claws 43. Each of the two claws 43 has a shoulder, which is a size and a shape corresponding to those of the second light guide pipe 65, for supporting and clamping two legs of the second light guide pipe 65. The two claws 43 may be movable toward or away from each other. It should be appreciated for those skilled in this art that the structures of the tools may be designed according to the shape and the structure of the components to be clamped.

Also, as shown in Figs. l and 6-7, in an embodiment, the robot assembling system may further comprise a storage tray 4 for storing cages, contact sub-assemblies and the like, a storage tray 5 for storing cages, light guide pipes, connection members, rear covers and the like. It should be appreciated that the two storage trays in the illustrated embodiments may be combined into a single storage tray.

Figs.8-12 are illustrative views of picking up components of the contact sub-assembly of the first connector assembly 6a from the storage tray 5 by various tools of the first operating mechanism 3a of the robot 3. As shown in Fig.8, the second tool 32 is configured to pick up the first light guide pipe 64 from the storage tray 5. Fig.9 shows a state of the first light guide pipe 64 being clamped by the second tool 32. As shown in Fig.11, the third tool 33 is configured to pick up the second light guide pipe 65 from the storage tray 5. As shown in Fig.12, the first tool 31 is configured to pick up the contact 61 from the storage tray 5.

Figs.13-20 show a process of assembling the contact sub-assembly of the first connector assembly 6a on the first assembling workstation 1. The contact sub-assembly comprises a contact 61, light guide pipes 64, 65 and a connection member 66. As shown in Fig.13, the first tool 31 is operated to load the contact 61 to the loading portion 11 of the first assembling workstation 1. The first assembling workstation 1 may comprise a locking mechanism for locking the contact 61 at a fixation position. Then, as shown in Figs.14-15, the second tool 32 is operated to load the first light guide pipe 64 to the contact 61. Then, as shown in Figs.16-17, the third tool 33 is operated to load the second light guide pipe 65 to the contact 61. In this state, as shown in Fig.18, the contact holding portion 13 of the first assembling workstation 1 is moved up to clamp the contact 61, and align the light guide pipes 64 and 65 on the contact 61 to the connection member 66. Then, as shown in Fig.19, the connection member 66 is pushed toward the contact 61 by an air nozzle block 14 on the connection member loading portion 12 of the first assembling workstation 1.

Fig.20 is an illustrative view of an air nuzzle block on the connection member loading portion. As shown in Fig.20, the air nozzle block 14 has an air nozzle 15 for spraying air to push the connection member 66. The connection member 66 is provided with insertion holes. The connection member 66 is moved to the first light guide pipe 64 and the second light guide pipe 65 under the pushing of air, so that ends of the first light guide pipe 64 and the second light guide pipe 65 are inserted into insertion holes of the connection member 66, respectively. The air nozzle advantageously provides a means of assembling the connection member to the light guide pipe without damaging the light guide pipe. In this way, a first contact sub-assembly including the light guide pipes, the connection member and the contact is formed. Then, the above processes are repeated to form a second contact sub-assembly which is the same as the first contact subassembly.

In order to perform the above processes, the first assembling workstation 1 may further comprise: a first driving mechanism 16 configured to drive the connection member loading portion to move in the first direction to a position aligned to the contact; and a second driving mechanism 17 configured to drive the contact holding portion 13 to move in a second direction perpendicular to the first direction.

After two contact sub-assemblies are formed as described above on the first assembling workstation 1, the two contact sub-assemblies are assembled to the cage on the second assembling workstation 2 to form the connector assembly. Firstly, as shown in Fig.21, the fifth tool 35 on the first operating mechanism 3a of the robot 3 is operated to load the cage 62 to the loading portion 21 of the second assembling workstation 2. Fig.22 is an illustrative view showing that the cage 62 has been loaded on the loading portion 21 of the second assembling workstation 2.

Figs.23-30 and 32 show operations of assembling the two contact sub-assemblies to the cage under the guidance of the guiding mechanism. Fig.31 is a cross section view of a state of collision between the connection member of the light guide pipe and the horizontal partition plate of the cage when the guiding mechanism is not in work. As shown in Figs.23-32, the second assembling workstation 2 further comprises a guiding mechanism 22 adapted to be inserted into the cage 62 and configured to guide an integrated component (see Fig.29), which is formed by the light guide pipe 64, 65 and the connection member 66, to be inserted between two horizontal partition plates 69a at each side of the cage 62 without colliding ends of the horizontal partition plates 69a. The ends of the two horizontal partition plates 69a may be connected together to form a single component by a connection plate. In an embodiment, the guiding mechanism 22 is not limited the embodiments that the cage comprises a pair of horizontal partition plates (two horizontal partition plates), and the guiding mechanism 22 is also suitable for a cage comprising a plurality of pairs of horizontal partition plates. The guiding mechanism 22 may be provided between each pair of horizontal partition plates.

In an embodiment, as shown in Figs.23 -27, the guiding mechanism 22 comprises two cover plates 220 adapted to be respectively covered on outer side of the two horizontal partition plates 69a at each side of the cage 62. Each of the cover plates 220 comprises a hook 220a formed on an end thereof and configured to cover the ends of the horizontal partition plates 69a, and the hook 220a comprises a guiding slope face 220b formed on an outer side thereof and configured to guide the insertion of the light guide pipes 64, 65 and the connection member 66.

As shown in Figs.24-26, each of the two cover plates 220 of the guiding mechanism 22 comprises a pivotal pin 221. Each of the cover plates 220 may be pivoted about the pivotal pin 221 fixed on the second assembling workstation 2. Thereby, the two cover plates 220 may be pivotally opened and closed relative to each other. As shown in Fig.25, when the two cover plates 220 are closed, the ends of the horizontal partition plates 69a are covered by the hooks 220a of the two cover plates 220.

Also, as shown in Figs.24-26, a spring 222 is provided between the two cover plates 220. The spring 222 is connected between two pivotal pins 221 and configured to close the two cover plates 220 by biasing the two cover plates 220, and the ends of the horizontal partition plates 69a are covered by the hooks 220a.

Also, as shown in Figs.24-26, an inclined surface 220c is formed on an end of each cover plate 220 opposite to the hook 220a. The second assembling workstation 2 further comprises a U-shaped member 23 comprising two sidewalls, on ends of which an inclined face 232c mated with the inclined surface 220c is formed, so that a distance between the two cover plates 220 is changeable when the inclined face 232c of the U-shaped member 23 slides along the inclined surface 220c of the two cover plates.

As shown in Figs.24-25, in order to drive the guiding mechanism 22 insert into the cage, the second assembling workstation 2 further comprises a first driving mechanism 24 and a second driving mechanism 25. The first driving mechanism 24 is configured to drive the guiding mechanism 22 to move into or out of the cage 62. The second driving mechanism 25 is configured to drive the U-shaped member 23 to move toward or away from the guiding mechanism 22. In an embodiment, the first driving mechanism 24 and the second driving mechanism 25 may comprise an air cylinder.

Fig.28 is an illustrative view of loading two contact subassemblies arranged side by side to the cage 62 on the second assembling workstation 2 by a fifth gripper 35 of the first operating mechanism 3a; Fig.29 is a cross section view of inserting the two contact subassemblies into the cage; Fig.30 is a local enlarged view of the guiding mechanism of Fig.29. As shown in Figs.28-30, when the two contact subassemblies are inserted into the cage, the connection member 66 at ends of the light guide pipes may be smoothly inserted between the horizontal partition plates 69a of the cage under the guidance of the inclined face 220b on the hook 220a of the guiding mechanism 22 without colliding the horizontal partition plates 69a, and it prevent the connection member 66 from being damaged. Fig.32 is a cross section view of pushing the contact sub-assembly to an installation location in the cage 62 by the gripper 33 of the first operating mechanism 3 a.

Compared with the embodiments shown in Figs.28-30, Fig. 31 is a cross section view of a state of collision between the connection member 66 of the light guide pipes 64, 65 and the horizontal partition plate 69a of the cage 62 when the guiding mechanism is opened and is not in work. In the state of collision as shown in Fig.31, it is difficult to assemble the connector assembly, affecting the whole assembly process. In addition, because the connection member 66 is generally formed of a plastic component, the connection member is very easy to break when it collides with the metal horizontal partition plate 69a.

In an embodiment, as shown in Figs.2 and 42, the first operating mechanism 3a of the robot 3 further comprises a sixth tool 36. The sixth tool 36 comprises a pushing block 361 and three pins 360 protruding from the pushing block 361 and arranged side by side. In use, as shown n Figs.43 and 44, two pins 360 at sides are configured to guide and hold the two contact sub-assemblies, the pin 360 at middle portion is configured to be inserted between the two contact subassemblies before inserting the two contact subassemblies 61 into the cage 62, so that the two contact subassemblies 61 are pre-separated, and a gap 39 is formed between the two contact subassemblies 61. The structure of the sixth tool is not limited to the illustrated embodiments as long as it may separate the two contact subassemblies.

In a condition where the gap is formed between the two contact subassemblies by the pushing block 361 of the sixth tool 36, the middle vertical partition plate 63 of the cage 62 is inserted into the gap 39. Then, the sixth tool 36 is removed. Then, the two contact subassemblies are further pushed into the cage 62 by the third tool 33 of the first operating mechanism 3a, as shown in Fig.45. In this way, when the two contact subassemblies are pushed into the cage 62 by the third tool 33 of the first operating mechanism 3a, the two contact subassemblies will not collide the middle vertical partition plate 63 of the cage 62, and the middle vertical partition plate 63 may be smoothly inserted into the gap 39 between the two contact subassemblies. Figs.45-47 show a state where the two contact subassemblies are pushed into the cage 62 by the third tool 33. It should be appreciated that the third tool 33 may be replaced by any other tool as long as it may push the two contact subassemblies into the cage 62.

Hereafter, it will describe a method of assembling the first connector assembly 6a by the robot assembling system according to the above embodiments. The method may comprise steps of:

S I: clamping the contact and loading the contact to the contact loading portion of the first assembling workstation by the first tool of the robot;

S2: clamping the first light guide pipe and loading the first light guide pipe to the contact by the second tool of the robot;

S3: clamping the second light guide pipe and loading the second light guide pipe to the contact by the third tool of the robot; S4: clamping the connection member and loading the connection member to the connection member loading portion by the fourth tool of the robot;

S5: moving the connection member loading portion toward the contact loading portion on the first assembling workstation, so that the connection member are assembled to ends of the first and second light guide pipes to form the first contact subassembly;

S6: repeating the above steps S 1-S5 to form the second contact subassembly;

S7: clamping the cage and loading the cage to the cage loading portion of the second assembling workstation by the fifth tool of the robot;

S8: clamping the two contact subassemblies arranged side by side and placing the two contact subassemblies on a loading position aligned to the cage by the fifth tool of the robot; and

S9: assembling the two contact subassemblies to the cage to form the connector assembly

In an embodiment, the step S9 may comprise steps of:

S91: providing a guiding mechanism 22 on the second assembling workstation 2, wherein the guiding mechanism 22 is adapted to be inserted into the cage 62 and configured to guide the light guide pipe 64, 65 and the connection member 66 to be inserted between two horizontal partition plates 69a at each side of the cage without colliding ends of the horizontal partition plates; and

S92: pushing the two contact subassemblies by any tool of the robot, so as to insert the two contact subassemblies into the cage under the guidance of the guiding mechanism to form the connector assembly.

In an embodiment, before the step S92, the method may further comprise a step of: S93: providing a sixth tool on the robot, and pre-separating the two contact subassemblies 61 by the sixth tool before inserting the two contact subassemblies 61 into the cage, so that the two contact subassemblies 61 will not collide the middle vertical partition plate 63 of the cage 62 during being inserted into the cage.

In another embodiment of the present invention, the robot assembling system of Fig.l is used to assemble the second connector assembly 6b. The device and the process of assembling the second connector assembly 6b are similar to the first connector assembly 6a. Thereby, hereafter, it will mainly describe the differences of them.

Fig.5 is an exploded perspective view of the second connector assembly 6b. Fig.33 is a cross section view showing the structure of the second connector assembly 6b. Fig.35 and 36 show the protrusion 600 at the inner side of the horizontal partition plate 69b in the cage 62b of the second connector assembly 6b. As shown in Fig.5 and 35-36, the second connector assembly 6b comprises two contacts 61b mounted in two chambers which are located at left and right sides of the cage 62b and separated by the middle vertical partition plate 63b. There are provided two horizontal partition plates 69b at left and right sides of the middle vertical partition plate 63b, respectively. Each of the two contacts 61b comprises a light guide pipe 68. A protrusion 600 is formed at an inner side of two horizontal partition plates 69b at each side of the middle vertical partition plate 63b of the cage 62b, and the protrusion 600 is located on a passing path of the light guide pipe 68. As shown in Fig.5, the second connector assembly 6b may further comprise a rear cover 67.

In order to assemble the second connector assembly 6b, the robot uses the second operating mechanism 3b shown in Fig.3 to perform the assembling task. Fig.3 shows a working state of the second operating mechanism 3b of the robot 3 shown in Fig. l. The second operating mechanism 3b at least comprises: a first tool 31b configured to clamp the contact 61b and load the contact 61b to the contact loading portion of the first assembling workstation 1; a second tool 32b configured to clamp the light guide pipe 68 and load the light guide pipe 68 to the contact 61b; and a third tool 33b configured to clamp the cage 62b and load the cage 62b to the cage loading portion.

Also, as shown in Fig.3, the second operating mechanism 3b may further comprise: a fourth tool 37 configured to clamp a rear cover 67 and load the rear cover 67 to the cage 62b; and a fifth tool 38 configured to clamp the contact subassembly 70 and load the contact subassembly 70 to cage 62. It should be appreciated for those skilled in this art that other tools may be added on the second operating mechanism 3b as needed. As shown in Fig.3, each tool on the second operating mechanism 3b has a mating structure corresponding to a structure of a respective component to be gripped, so as to grip the respective component. For example, Fig.34 is an enlarged view of the fifth tool 38 for clamping the contact subassembly 70. As shown in Fig.34, the fifth tool 38 comprises a claw 38a. The claw 38a has the size and the shape corresponding to those of a groove 70a in the respective contact subassembly 70, so as to clamping the contact subassembly 70 by mating the claw 38a with the groove 70a.

As shown in Fig.37, in the absence of the guiding mechanism, when the light guide pipe 68 is inserted into a space between the two horizontal partition plates 69b, the light guide pipe 68 will interfere and collide with the protrusion 600 on the cage 62. In order to avoid the interference, as shown in Figs.38 and 39, in an embodiment, a guiding mechanism is provided on the second assembling workstation 2. The guiding mechanism may comprise a guiding pin 28 provided with a guiding slope face 28a. When the light guide pipe 68 is inserted between the horizontal partition plates, the guiding slope face 28a of the guiding pin 28 guides the insertion of the light guide pipe 68, so as to avoid the interference with the protrusion 600 on the cage 62.

As shown in Figs.40 and 41, the second assembling workstation 2 further comprises a driving mechanism 29 configured to drive the guiding pin 28 to move up and down, so that the guiding pin 28 is moved up to a work position to guide the insertion of the light guide pipe 68 when the light guide pipe 68 is inserted between the horizontal partition plates 69b, and is moved down to a spare position when the light guide pipe 68 is not inserted. Fig40 shows that the guiding pin 28 is moved up to the work position; Fig.41 shows that the guiding pin is moved down to the spare position.

Hereafter, it will describe a method of assembling the second connector assembly 6b by the robot assembling system according to the above embodiments. The method may comprise steps of:

S I: clamping the contact and loading the contact to the contact loading portion of the first assembling workstation by the first tool of the robot;

S2: clamping the light guide pipe and loading the light guide pipe to the contact by the second tool of the robot, so as to form the first contact subassembly;

S3: repeating the above steps S 1-S2 to form the second contact subassembly;

S4: clamping the cage and loading the cage to the cage loading portion of the second assembling workstation by the third tool of the robot;

S5: clamping the two contact subassemblies arranged side by side and placing the two contact subassemblies on a loading position aligned to the cage by the third tool of the robot; and

S6: assembling the two contact subassemblies to the cage to form the connector assembly.

In an embodiment, the above step S6 may comprise steps of:

S61: providing a guiding mechanism on the second assembling workstation 2 , wherein the guiding mechanism is configured to guide the light guide pipe 68 to be inserted between two horizontal partition plates 69b at each side of the cage without colliding the protrusion 600 of the horizontal partition plates 69b; and

S62: pushing the two contact subassemblies by any tool of the robot, so as to insert the two contact subassemblies into the cage under the guidance of the guiding mechanism to form the connector assembly.

In the above various exemplary embodiments of the present invention, the robot assembling system and method as well as the robot may automatically assemble the connector assembly, and it greatly improves the efficiency of assembling the connector assembly and saves the cost. Furthermore, it may achieve the accurate assembly of the connector assembly and avoid the interference among the components of the connector assembly in the assembly process.

It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrated, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.

Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

As used herein, an element recited in the singular and proceeded with the word "a" or "an" should be understood as not excluding plural of said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to "one embodiment" of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular property may include additional such elements not having that property.