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Title:
HEAT SHRINKABLE TUBE ASSEMBLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/172470
Kind Code:
A9
Abstract:
An assembly system, including: a feeding mechanism (100) adapted to feed a heat shrinkable tube (12); a cutting mechanism (200) adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube fed by the feeding mechanism; a clamping mechanism (300) adapted to clamp the heat shrinkable tube during cutting the heat shrinkable tube by the cutting mechanism; a robot (500) adapted to grip the section of heat shrinkable tube cut off from the heat shrinkable tube; and a vision system (410, 420) adapted to guide the robot to sleeve the section of heat shrinkable tube onto a wire (11) of an electrical device (10). The assembly system may realize the automatic assembly of the heat shrinkable tube, improving the assembly efficiency and ensuring the assembly accuracy.

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Inventors:
XIE, Fengchun (C/O Tyco Electronics Co. Ltd, No 668, Gui Ping Rd Cao He Jin,High Tech Park, Shanghai 3, 200233, CN)
ZHANG, Dandan (No 668 Gui Ping Rd Cao He Jin,High Tech Park, Shanghai 3, 200233, CN)
LU, Roberto Francisco-Yi (4701 130th Ave Se, Bellevue, Washington, 98006, US)
HU, Lvhai (No 668 Gui Ping Rd Cao He Jin,High Tech Park, Shanghai 3, 200233, CN)
ZENG, Qinglong (C/O Shenzhen AMI Technology Co. Ltd, 1/F, H2 Bldg, Hongfa Hi-tech Industrial Park,Tangtou Blvd,Shiya, Baoan District Shenzhen, CN)
GONG, Lan (C/O Measurement Specialties Ltd, No. 368 Wulianyi RoadGongxing Town,Shuangliu Count, Chengdu Sichuan, CN)
YING, Qian (C/O Measurement Specialties Ltd, No. 368 Wulianyi RoadGongxing Town,Shuangliu Count, Chengdu Sichuan, CN)
Application Number:
EP2018/057332
Publication Date:
October 10, 2019
Filing Date:
March 22, 2018
Export Citation:
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Assignee:
TYCO ELECTRONICS (SHANGHAI) CO. LTD. (Sections F and G Level 1 Building 15, No. 999 Yinglun RoadChina Pilot Free Trade Zone, Shanghai, CN)
TE CONNECTIVITY CORPORATION (1050 Westlakes Drive, Berwyn, Pennsylvania, 19312, US)
SHENZHEN AMI TECHNOLOGY CO., LTD. (1/F H2 Bldg, Hongfa Hi-tech Industrial ParkTangtou Blvd,Shiya, Baoan District Shenzhen, CN)
MEASUREMENT SPECIALTIES (CHENGDU) LTD. (No. 368 Wulianyi Road, Gongxing TownShuangliu Count, Chengdu Sichuan, CN)
TYCO ELECTRONICS UK LTD (Faraday Road, Dorcan, Swindon Wiltshire SN3 5HH, SN3 5HH, GB)
International Classes:
H01R4/72; B25J9/16; H01R43/00; H02G15/18
Attorney, Agent or Firm:
MURGITROYD & COMPANY (Scotland House, 165-169 Scotland Street, Glasgow Strathclyde G5 8PL, G5 8PL, GB)
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Claims:
What is claimed is,

1. An assembly system, characterized in that comprises:

a feeding mechanism (100) adapted to feed a heat shrinkable tube (12);

a cutting mechanism (200) adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube (12) fed by the feeding mechanism (100);

a clamping mechanism (300) adapted to clamp the heat shrinkable tube (12) during cutting the heat shrinkable tube (12) by the cutting mechanism (200);

a robot (500) adapted to grip the section of heat shrinkable tube (12) cut off from the heat shrinkable tube (12); and

a vision system (410, 420) adapted to guide the robot (500) to sleeve the section of heat shrinkable tube (12) onto a wire (11) of an electronic device (10).

2. The assembly system according to claim 1, further comprising:

a heating mechanism (600) configured to heat one end (l2a) of the section of heat shrinkable tube (12) before the section of heat shrinkable tube (12) is sleeved onto the wire (11) of the electrical device (10), so that the one end (l2a) of the section of heat shrinkable tube (12) is melt and sealed,

wherein the wire (11) is inserted into the section of heat shrinkable tube (12) through the opened other end (l2b) of the section of heat shrinkable tube (12).

3. The assembly system according to claim 2,

wherein the heating mechanism (600) is adapted to spray a hot air to the one end (l2a) of the section of heat shrinkable tube (12), so that the one end (l2a) of the section of heat shrinkable tube (12) is melt and sealed.

4. The assembly system according to claim 2, further comprising:

a diameter adjusting needle (340) adapted to expand a diameter of the section of heat shrinkable tube (12) to a predetermined size before the section of heat shrinkable tube (12) is sleeved onto the wire (11) of the electrical device (10).

5. The assembly system according to claim 4, wherein the diameter adjusting needle (340) is formed in a cone shape.

6. The assembly system according to claim 4,

wherein the robot (500) is adapted to sleeve the section of heat shrinkable tube (12) onto the diameter adjusting needle (340) under the guidance of the vision system (410, 420), so as to expand the diameter of the section of heat shrinkable tube (12) to the predetermined size by the diameter adjusting needle (340).

7. The assembly system according to claim 4,

wherein the diameter adjusting needle (340) is provided on a support body (330) of the clamping mechanism (300), an axis of the diameter adjusting needle (340) extending in a horizontal direction.

8. The assembly system according to any one of claims 1-7, further comprising:

a heater (520) adapted to heat the heat the section of heat shrinkable tube (12) after the section of heat shrinkable tube (12) is sleeved onto the wire (11) of the electrical device (10), so that the section of heat shrinkable tube (12) is heated and shrunk on the wire (11).

9. The assembly system according to claim 8,

wherein the heater (520) is mounted on the robot (500), and the robot (500) is adapted to move the heater (520) to the section of heat shrinkable tube (12) sleeved on the wire (11) under the guidance of the vision system (410, 420), so that the section of heat shrinkable tube (12) is evenly heated and shrunk on the wire (11).

10. The assembly system according to claim 8, wherein the heater (520) comprises a soldering head adapted to perform a welding operation.

11. The assembly system according to any one of claims 1-10,

wherein a gripper (510) is mounted on the robot (500), and the robot (500) is adapted to grip the section of heat shrinkable tube (12) by the gripper (510).

12. The assembly system according to any one of claims 1-11, further comprising:

a fixing device (700) adapted to fix the electrical device (10) and the wire (11) of the electrical device (10) in position.

13. The assembly system according to any one of claims 1-12,

wherein the vision system (410, 420) comprises a first camera (410) and a second camera (420), an optical axis of the first camera (410) extending in a horizontal direction perpendicular to the wire (11), and an optical axis of the second camera (420) extending in a vertical direction perpendicular to the wire (11).

14. The assembly system according to any one of claims 1-13, wherein the feeding mechanism (100) comprising: a main body (110) on which a slot extending in a longitudinal direction of the main body (110) and configured to receive the heat shrinkable tube (12) is formed;

a sliding block (120) slidably mounted on the main body (110) and adapted to push the heat shrinkable tube (12) outward in the longitudinal direction of the main body (110); and a linear actuator (130) mounted on the main body (110) and adapted to drive the sliding block (120) to slide in the longitudinal direction of the main body (110).

15. The assembly system according to any one of claims 1-14,

wherein the clamping mechanism (300) comprises a pair of clamping fingers (310, 320), one of the pair of clamping fingers (310, 320) being movable, and the other of the pair of clamping fingers (310, 320) being fixed.

Description:
HEAT SHRINKABLE TUBE ASSEMBLY SYSTEM

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Chinese Patent Application No.201710178125.7 filed on Mar. 23, 2017 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 an assembly system, more particularly, relates to an assembly system adapted to assemble a heat shrinkable tube on a wire of an electrical device.

Description of the Related Art

In the field of electrical device, for waterproof and insulation, it often needs to sleeve a heat shrinkable tube onto a wire of the electrical device. In the prior art, the heat shrinkable tube is generally assembled onto the wire of the electrical device by manual. The process of manual assembly of the heat shrinkable tube is as follows: firstly, an operator needs to cut off a section of heat shrinkable tube with a predetermined length from a long heat shrinkable tube; then, the section of heat shrinkable tube is placed on a heating mechanism to heat one end thereof, so that the one end of the section of heat shrinkable tube is melt and sealed; then, the wire of the electrical device is inserted into the section of heat shrinkable tube through the opened other end of the section of heat shrinkable tube, so that the section of heat shrinkable tube is sleeved onto the wire; then, the section of heat shrinkable tube sleeved onto the wire is heated by a heater, so that the section of heat shrinkable tube is heated and shrunk on the wire of the electrical device.

However, assembling the heat shrinkable tube onto the wire of the electrical device by manual is very time-consuming, which reduces the manufacturing efficiency of the electrical device. In addition, the manual assembly reduces the assembly accuracy.

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 object of the present invention, there is provided an assembly system that may quickly assemble a heat shrinkable tube onto a wire of an electrical device in high assembly accuracy.

According to an aspect of the present invention, there is provided an assembly system, comprising: a feeding mechanism adapted to feed a heat shrinkable tube; a cutting mechanism adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube fed by the feeding mechanism; a clamping mechanism adapted to clamp the heat shrinkable tube during cutting the heat shrinkable tube by the cutting mechanism; a robot adapted to grip the section of heat shrinkable tube cut off from the heat shrinkable tube; and a vision system adapted to guide the robot to sleeve the section of heat shrinkable tube onto a wire of an electrical device.

According to an exemplary embodiment of the present invention, the assembly system further comprises a heating mechanism configured to heat one end of the section of heat shrinkable tube before the section of heat shrinkable tube is sleeved onto the wire of the electrical device, so that the one end of the section of heat shrinkable tube is melt and sealed. The wire is inserted into the section of heat shrinkable tube through the opened other end of the section of heat shrinkable tube.

According to another exemplary embodiment of the present invention, the heating mechanism is adapted to spray a hot air to the one end of the section of heat shrinkable tube, so that the one end of the section of heat shrinkable tube is melt and sealed.

According to another exemplary embodiment of the present invention, the assembly system further comprises a diameter adjusting needle adapted to expand a diameter of the section of heat shrinkable tube to a predetermined size before the section of heat shrinkable tube is sleeved onto the wire of the electrical device.

According to another exemplary embodiment of the present invention, the diameter adjusting needle is formed in a cone shape.

According to another exemplary embodiment of the present invention, the robot is adapted to sleeve the section of heat shrinkable tube onto the diameter adjusting needle under the guidance of the vision system, so as to expand the diameter of the section of heat shrinkable tube to the predetermined size by the diameter adjusting needle.

According to another exemplary embodiment of the present invention, the diameter adjusting needle is provided on a support body of the clamping mechanism, an axis of the diameter adjusting needle extending in a horizontal direction.

According to another exemplary embodiment of the present invention, the assembly system further comprises a heater adapted to heat the heat the section of heat shrinkable tube after the section of heat shrinkable tube is sleeved onto the wire of the electrical device, so that the section of heat shrinkable tube is heated and shrunk on the wire.

According to another exemplary embodiment of the present invention, the heater is mounted on the robot, and the robot is adapted to move the heater to the section of heat shrinkable tube sleeved on the wire under the guidance of the vision system, so that the section of heat shrinkable tube is evenly heated and shrunk on the wire.

According to another exemplary embodiment of the present invention, the heater comprises a soldering head adapted to perform a welding operation.

According to another exemplary embodiment of the present invention, a gripper is mounted on the robot, and the robot is adapted to grip the section of heat shrinkable tube by the gripper.

According to another exemplary embodiment of the present invention, the assembly system further comprises a fixing device adapted to fix the electrical device and the wire of the electrical device in position.

According to another exemplary embodiment of the present invention, the vision system comprises a first camera and a second camera. An optical axis of the first camera extends in a horizontal direction perpendicular to the wire, and an optical axis of the second camera extends in a vertical direction perpendicular to the wire.

According to another exemplary embodiment of the present invention, the feeding mechanism comprising: a main body on which a slot extending in a longitudinal direction of the main body and configured to receive the heat shrinkable tube is formed; a sliding block slidably mounted on the main body and adapted to push the heat shrinkable tube outward in the longitudinal direction of the main body; and a linear actuator mounted on the main body and adapted to drive the sliding block to slide in the longitudinal direction of the main body.

According to another exemplary embodiment of the present invention, the clamping mechanism comprises a pair of clamping fingers, one of the pair of clamping fingers being movable, and the other of the pair of clamping fingers being fixed.

In the above various exemplary embodiments of the present invention, the assembly system may realize the automatic assembly of the heat shrinkable tube, improving the assembly efficiency and ensuring the assembly accuracy.

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.l is an illustrative perspective view of an assembly system according to an exemplary embodiment of the present invention;

Fig.2 is an illustrative perspective view of a cutting mechanism of the assembly system shown in Fig.l;

Fig.3 is an illustrative perspective view of a clamping mechanism of the assembly system shown in Fig.l; Fig.4 is an illustrative perspective view of a diameter adjusting needle of the clamping mechanism shown in Fig.3;

Fig.5 is an illustrative perspective view of a robot of the assembly system shown in Fig.l; and

Fig.6 is an illustrative perspective view of a heat shrinkable tube sleeved onto a wire of an electrical device.

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.

According to a general concept of the present invention, there is provided an assembly system, comprising: a feeding mechanism adapted to feed a heat shrinkable tube; a cutting mechanism adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube fed by the feeding mechanism; a clamping mechanism adapted to clamp the heat shrinkable tube during cutting the heat shrinkable tube by the cutting mechanism; a robot adapted to grip the section of heat shrinkable tube cut off from the heat shrinkable tube; and a vision system adapted to guide the robot to sleeve the section of heat shrinkable tube onto a wire of an electrical device.

Fig.l is an illustrative perspective view of an assembly system according to an exemplary embodiment of the present invention.

As shown in Fig.l, in an embodiment, the assembly system mainly comprises a feeding mechanism 100, a cutting mechanism 200, a clamping mechanism 300, a vision system 410, 420, and a robot 500. The feeding mechanism 100 is adapted to feed a heat shrinkable tube 12. The cutting mechanism 200 is adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube 12 fed by the feeding mechanism 100. The clamping mechanism 300 is adapted to clamp the heat shrinkable tube 12 during cutting the heat shrinkable tube 12 by the cutting mechanism 200. The robot 500 is adapted to grip the section of heat shrinkable tube 12 cut off from the heat shrinkable tube 12. The vision system 410, 420 is adapted to guide the robot 500 to sleeve the section of heat shrinkable tube 12 onto a wire 11 of an electrical device 10 (see Fig.6).

Fig.6 is an illustrative perspective view of a heat shrinkable tube 12 sleeved onto a wire 11 of an electrical device 10.

As shown in Figs.l and 6, in an embodiment, the assembly system further comprises a heating mechanism 600 configured to heat one end (right end in Fig.6) l2a of the section of heat shrinkable tube 12 before the section of heat shrinkable tube 12 is sleeved onto the wire

11 of the electrical device 10, so that the one end l2a of the section of heat shrinkable tube

12 is melt and sealed. The wire 11 is inserted into the section of heat shrinkable tube 12 through the opened other end (left end in Fig.6) l2b of the section of heat shrinkable tube 12.

Although it is not shown, in an embodiment, the heating mechanism 600 is adapted to spray a hot air to heat the one end l2a of the section of heat shrinkable tube 12, so that the one end l2a of the section of heat shrinkable tube 12 is melt and sealed.

Fig.2 is an illustrative perspective view of a cutting mechanism 200 of the assembly system shown in Fig.l. As shown in Fig.2, the cutting mechanism 200 may include a scissors and a driver (not shown) for driving the scissors to open and close.

Fig.3 is an illustrative perspective view of a clamping mechanism 300 of the assembly system shown in Fig.l; Fig.4 is an illustrative perspective view of a diameter adjusting needle 340 of the clamping mechanism 300 shown in Fig.3.

As shown in Figs.3-4, in an embodiment, the assembly system further comprises a diameter adjusting needle 340 adapted to expand a diameter of the section of heat shrinkable tube 12 to a predetermined size before the section of heat shrinkable tube 12 is sleeved onto the wire 11 of the electrical device 10. In this way, after being expanded, the expanded heat shrinkable tube 12 may be smoothly sleeved onto the wire 11 of the electrical device 10.

As shown in Figs.3-4, in an embodiment, the diameter adjusting needle 340 is formed in a cone shape. The robot 500 is adapted to sleeve the section of heat shrinkable tube 12 onto the diameter adjusting needle 340 under the guidance of the vision system 410, 420, so as to expand the diameter of the section of heat shrinkable tube 12 to the predetermined size by the diameter adjusting needle 340.

As shown in Figs.3-4, in an embodiment, the diameter adjusting needle 340 is provided on a support body 330 of the clamping mechanism 300 an axis of the diameter adjusting needle 340 extending in a horizontal direction.

As shown in Figs.3-4, in an embodiment, the clamping mechanism 300 comprises a pair of clamping fingers 310, 320, one of the pair of clamping fingers 310, 320 being movable, and the other of the pair of clamping fingers 310, 320 being fixed.

Fig.5 is an illustrative perspective view of a robot 500 of the assembly system shown in Fig.l. As shown in Figs.l and 5, in an embodiment, the assembly system further comprises a heater 520 adapted to heat the section of heat shrinkable tube 12 after the section of heat shrinkable tube 12 is sleeved onto the wire 11 of the electrical device 10, so that the section of heat shrinkable tube 12 is heated and shrunk on the wire 11.

As shown in Figs.l and 5, in an embodiment, the heater 520 is mounted on the robot 500, and the robot 500 is adapted to move the heater 520 to the section of heat shrinkable tube 12 sleeved on the wire 11 under the guidance of the vision system 410, 420, so that the section of heat shrinkable tube 12 is evenly heated and shrunk on the wire 11.

As shown in Figs.l and 5, in an embodiment, the heater 520 is a soldering head adapted to perform a welding operation. In this way, it does not need to provide an additional heater for the heat shrinkable tube 12, simplifying the assembly system.

As shown in Figs.l and 5, in an embodiment, a gripper 510 is mounted on the robot 500, and the robot 500 is adapted to grip the section of heat shrinkable tube 12 by the gripper 510.

As shown in Fig.l, in an embodiment, the assembly system further comprises a fixing device 700 adapted to fix the electrical device 10 and the wire 11 of the electrical device 10 in position.

As shown in Fig.l, in an embodiment, the vision system 410, 420 comprises a first camera 410 and a second camera 420, an optical axis of the first camera 410 extends in a horizontal direction perpendicular to the wire 11, and an optical axis of the second camera 420 extends in a vertical direction perpendicular to the wire 11. In this way, a horizontal position and a vertical position of the section of the heat shrinkable tube 12 may be obtained by the robot 500, which ensures that the section of the heat shrinkable tube 12 is capable of being accurately sleeved onto the wire 11 of the electrical device 10.

As shown in Fig.l, in an embodiment, the feeding mechanism 100 mainly comprises a main body 110, a sliding block 120 and a linear actuator 130. A slot extending in a longitudinal direction of the main body 110 and configured to receive the heat shrinkable tube 12 is formed on the main body 110. The sliding block 120 is slidably mounted on the main body 110 and adapted to push the heat shrinkable tube 12 outward in the longitudinal direction of the main body 110, so that the heat shrinkable tube 12 is moved outward in the longitudinal direction of the main body 110. The linear actuator 130 is mounted on the main body 110 and adapted to drive the sliding block 120 to slide in the longitudinal direction of the main body 110.

As shown in Fig.l, in an embodiment, the assembly system further comprises a base 1. The feeding mechanism 100, the cutting mechanism 200, the clamping mechanism 300, the vision system 410, 420, the robot 500, the heating mechanism 600, and the fixing device 700 are mounted on the base 1.

As shown in Figs.l and 5, in an embodiment, the robot 500 may be a multi-freedom robot, for example, a six-axis robot.

Hereafter, it will describe in detail a process of assembling the heat shrinkable tube onto the wire of the electrical device with reference to Figs.1-6.

Firstly, as shown in Fig.l, the feeding mechanism 100 feeds the heat shrinkable tube 12 to the cutting mechanism 200 and the clamping mechanism 300.

Then, the clamping mechanism 300 clamps the heat shrinkable tube 12, and the cutting mechanism 200 cuts off a section of heat shrinkable tube 12 with a predetermined length from the heat shrinkable tube 12.

Then, the clamping mechanism 300 releases the heat shrinkable tube 12, and the robot 500 grips the section of heat shrinkable tube 12 cut off from the heat shrinkable tube 12.

Then, the robot 500 sleeves the section of heat shrinkable tube 12 onto the diameter adjusting needle 340 under the guidance of the vision system 410, 420, so as to expand the diameter of the section of heat shrinkable tube 12 to the predetermined size by the diameter adjusting needle 340.

Then, the robot 500 moves the section of heat shrinkable tube 12 to the heating mechanism 600 under the guidance of the vision system 410, 420, and the heating mechanism 600 heats one end l2a of the section of heat shrinkable tube 12, so that the one end l2a of the section of heat shrinkable tube 12 is melt and sealed.

Then, the robot 500 sleeves the section of heat shrinkable tube 12 onto the wire 11 of the electrical device 10 under the guidance of the vision system 410, 420.

Finally, the robot 500 releases the section of heat shrinkable tube 12 and moves the heater 520 to the section of heat shrinkable tube 12 sleeved onto the wire 11, and the heater 520 evenly heats the section of heat shrinkable tube 12, so that the section of heat shrinkable tube 12 is heated and shrunk on the wire 11.

In this way, the heat shrinkable tube 12 is assembled onto the wire 11 of the electrical device 10.

In an exemplary embodiment of the present invention, the electrical device 10 may be a sensor or a connector.

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.