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JP3705054 |
To conduct prebending as well as bending following thereto in a simple equipment constitution and under simple motion. At the state a prebending blade 17 supported to a swing frame 3 at the perpendicular position P2 is facing to a lower ...
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JP3704781 |
To provide a pipe working method, by which an elbow-shape having extremely small roundness can be obtd. regardless of expanding quantity of a material without arranging special equipment and mechanism, such as insertion of an elastic bod...
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JP3704631 |
To provide a burring device of a tube which is suitable for burring the tube made of soft metal. This device is composed of a pair of clamp dies 16, 13 which punch a prepared hole on the wall of a tube 1 from the inside and hold the oute...
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JP3705979 |
To provide a working method by which a burred hole is formed in the same stage as the hydraulic forming of the cylindrical member for the purpose of performing the highly accurate and economical burring of the cylindri cal member. In a w...
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JP2005199283 |
To provide a burring tapper machine capable of removing whisker-like burrs generated during the burring between the burring and the tapping.The burring tapper machine comprises a burring punch 7 and a burring die 8 to burr a plate-like w...
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JP3700489 |
To simultaneously implement the hemming of a plurality of sides of a door panel to be hemmed of an automobile including corner parts. A swing arm 7 for pre-hemming is interlocked with the movement of a swing arm 9 for hemming, and before...
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JP3700631 |
To keep a clearance secured in a free fitting hemming joint always constant even if there is a difference in plate thickness between inner panels when it is performed to pressemble both panels by using a free fitting hemming joint formed...
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JP2005186115 |
To provide a pressing method in which an optimum edge for improving the sharpness can be simply and easily formed, and to provide a press die, a blade member manufacturing method, a blade member, and reciprocating equipment.The press die...
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JP2005188362 |
To provide a rocker arm made of sheet metal having stiffness resisting against use while reducing weight, and having excellent manufacturing yield.This rocker arm 2 made of sheet metal is formed by inserting a spindle 7 into the shaft ho...
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JP2005177793 |
To provide a manufacturing apparatus of a fin for heat exchangers with which the height of a collar is easily changeable without changing parts such as a punch when forming a projected piece which is formed on the peripheral edge of a pi...
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JP2005177772 |
To provide a precure hem sealer apparatus with which the latitude of design is increased by moving a mandrel back and forth on a locus so that the mandrel does not interfere with an inner panel when hemming and reducing constraints in th...
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JP2005169406 |
To reduce the number of working stages of a blade plate for hinges about a forming method of countersinks on both sides of the blade plate for the hinges.This method is a forming method of the countersinks on both sides of the blade plat...
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JP2005161389 |
To provide a flat hemming method of an aluminum alloy panel by which a crack in a bent part and the dimensional accuracy of the visible outline of the bent part are compatible even when the bend radius in the bent part is small.After for...
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JP3687559 |
To provide a roll hemming apparatus with which the apparatus is miniaturized, the roller supporting part is easily detachable and attachable from the wrist part of a robot arm and the robot is used for the purpose of other working. By pl...
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JP2005152965 |
To solve a problem that, since a conventional negative-angle press-forming swing die has a turnable shaft provided parallel to the bottom surface of the body of a press-forming machine, parts of a parting line between a fixed support bas...
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JP2005145185 |
To simplify and make compact a structure, to provide the large degree of freedom of a working range and excellent usability, and to enable efficient bending operation.A working mechanism 42 comprises first to third cylinders 66, 78, and ...
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JP2005144496 |
To provide a method for manufacturing a hat-shaped steel sheet pile having joints asymmetrical about the longitudinal axis, which sheet pipe is excellent in dimensional and shaping accuracy, and a claw bending device to be used for the s...
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JP3682712 |
To considerably improve the buckling strength when the compressive load is applied by pressing a part in the vicinity of an end part of a cylindrical connecting rod body into a semi-cylindrical part of semi-circular section, forming a pa...
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JP2005138118 |
To provide a double tube manufacturing method in which an end part to connect to an inner tubular portion to an outer tubular portion is formed in a desired shape.The double tube manufacturing method in which a double tube has an inner t...
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JP2005139916 |
To thin the thickness of a muffler cutter with crack prevented from occurring.The muffler cutter is formed in a shape of a double tube having an inner tube part and an outer tube part, and a pipe 10 is characterized in that the inner tub...
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JP2005125382 |
To materialize a tube end processing device which is simple in structure, compact, lightweight and inexpensive, and also is excellent in maneuverability, durability and accuracy.The invention relates to a tube end processing device which...
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JP3674287 |
To improve a concentricity precision of a prepared hole, a shape precision, a relative position precision and a concentricity precision of a burring hole by conducting burring from an outside of a flange part toward an inside in cooperat...
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JP3676592 |
To surely prevent an end part of a work from floating from a work support face of a die without damaging the work when press-working by a die. A lower die DL is provided with lower die holders 1, 4 having a die 5 and a cam slide 7 having...
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JP2005121350 |
To provide a heat exchanger comprising a plate fin mechanically joined to a tube and a method for manufacturing it, in which the joint of the tube longitudinal end to a header plate can be performed without requiring a high-temperature h...
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JP2005118788 |
To provide a press die with which a work the top face, both side faces and one end face of which are closed is accurately worked in one stage into a bag-like work which is made so as to close the bottom face by inward forming the lower p...
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JP2005118794 |
To provide a pipe joining structure capable of preventing discordant noise caused by the entering of spatter into a pipe, enhancing the joining strength of the pipe and increasing the latitude of the joining angle of the pipe to a work.O...
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JP2005118852 |
To provide a hemming device capable of reducing an installation space.In the hemming device 1, a lower die 22 is provided on a front part of a top face 211 of a lower plate 21. A base 23 is provided on a rear side of the lower die 22 in ...
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JP2005121211 |
To provide a method for manufacturing essentially radial annular collar on a hollow annular end of a part.The manufacturing method includes a deformation step for obtaining a collar preform 23 with a radial part 23b and a step for extend...
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JP3671760 |
To obtain a ring shaped member without limitation in size and thickness in a high yield by plastically deforming a tip side in the radial direction with compressing a cylindrical member in the axial direction and punching a ring shaped m...
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JP3669259 |
To provide a roll hemming device free of dispersion due to the teaching accuracy of a robot, and capable of conduct hemming machining for a hemming material in an astragal shape accurately even if a robot arm has rattle. The roll hemming...
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JP2005103624 |
To provide a punch for a press die capable of drilling a workpiece and chamfering the outer edge of the opening part of a hole formed in the workpiece with small man-hours, and preventing burrs protruded inside the hole from forming in t...
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JP2005103583 |
To provide a burr correction method for a steel plate edge, a method that properly corrects the burrs generated on a steel plate edge in trimming and that enables a stable trim edge to be obtained, even in equipment such as a continuous ...
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JP3667814 |
PURPOSE: To manufacture a good quality of a crack-free synchronizer ring without executing normalizing treatment, to highly keep the accuracy of roundness of a circular cone, accuracy of an inclined angle, accuracy of claw position, or t...
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JP3664085 |
To provide a method for roll hemming process and it's apparatus, of which the rollers comprise a pre-bending roller and a formal bending roller, and which are supported by a robot without changing the rollers, enables pre- bending and fo...
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JP3664880 |
To provide a chamfering die with which the effect of the accuracy of the stroke of a die to chamfering dimensions is suppressible and to provide chamfering method using this die. In the chamfering die 1 for simultaneously forming chamfer...
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JP3664089 |
To provide a roll hemming method capable of reducing the teaching man-hour of a robot in a preliminary bending, performing the hemming with high accuracy, and reducing the correcting man-hour of a lower die due to wear. Teaching for prel...
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JP2005088036 |
To provide a forming method of a protruded hollow shaft which can suppress occurrence of cracks at the tip even when the height of the protruded shaft formed integrally with a metal plate is increased.In the protrusion forming step, a pl...
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JP2005081436 |
To provide a press die which is less costly than a conventional one and can easily accommodate itself to a change in the type of a workpiece.In the press die 20, the motions of a knockout pin 45 and a burring punch 40 synchronizing with ...
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JP2005081400 |
To provide a double structure drum that dispenses with a joining band and a binding operation, and also to provide its manufacturing method.The double structure drum is characterized in that an inner can (1) is inserted into an outer can...
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JP2005081424 |
To provide a hollow body manufacturing method capable of maintaining excellent shape accuracy and shape holding property, omitting one of sealable closing seal tools, and simplifying a seal structure when forming a hollow body by hydraul...
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JP2005074470 |
To provide a hemming device and a method for hemming capable of preventing the deterioration of workability and the increase of the equipment cost.The nut 27 of a ball screw mechanism moves back and forth by the drive of a servomotor 35,...
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JP2005074431 |
To provide a hemming die which can correspond to a plurality of kinds of works even in the case that a formed part, such as a flange, etc., faced toward the outside is arranged in an edge face or an acute angle of the flange is large, an...
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JP2005074447 |
To obtain the processing of a high quality work and to prolong the service life of a cam follower arm.In a negative angle forming die, a lower die for laying the work of a metal-made thin plate on a supporting part and an upper die for f...
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JP2005074489 |
To provide a manufacturing method of automobile wheel which eliminates welding process, secures strength of wheel, improves torsional accuracy and reduces manufacturing cost by simplification of the process, through an integral forming o...
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JP3656922 |
To eliminate the trouble in a press-forming without causing the drastical reduction in mass-productivity. A blank holding jig 11 on a table 2 holding a sheet metal blank 9 is interposed turnably around axial lines P having almost same ph...
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JP2005066633 |
To provide general purpose, compact bending apparatus capable of hemming at a small floor space as a device for manufacturing repair parts after completing a major manufacturing processes of components with covers such as door panels for...
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JP2005066635 |
To manufacture aimed parts by performing press working without generating cracks and cleavages on a metallic material having spring property.The method for manufacturing parts having a three-dimensional structure by performing press work...
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JP3653793 |
PURPOSE: To improve quality of a work by executing clean cutting of an unnecessary part of a work on the periphery of a flange pat and to prevent a lower moving die of the lower die side from lowering in strength while cooperating a flan...
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JP2005059018 |
To provide a device for bending a wheel arch flange in which the device for bending the wheel arch flange can be easily set to a wheel arch part and by which the flange at the wheel arch part can be accurately bent by making the mutual d...
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JP2005059100 |
To provide a method for manufacturing a metallic sheet for containing a filler, which has ripples made by deformation processing at a side edge area of the sheet, or a filler having a metallic sheet of this type, with the same speed as i...
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