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Method and device for manufacturing cup-shaped component

A manufacturing method and technology of a manufacturing device, which are applied in the types of brakes, applications, household appliances, etc., can solve the problems of poor forming of the cylindrical part, poor precision of the concave and convex parts, and large extrusion resistance, and achieve extended life and reliable manufacturing methods. , the effect of efficient extrusion resistance

Inactive Publication Date: 2014-05-28
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, even when forming rollers are used, the pressing resistance becomes large, and the stresses generated on the inner and outer peripheral sides of the cylindrical portion of the cup-shaped member are not uniform, so warping of the cylindrical portion tends to occur. Defective molding such as warping or poor accuracy of concave and convex parts

Method used

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  • Method and device for manufacturing cup-shaped component
  • Method and device for manufacturing cup-shaped component
  • Method and device for manufacturing cup-shaped component

Examples

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no. 1 example ）

[0047] refer to Figure 1 to Figure 15 A method of manufacturing the cup-shaped member 7 having the concave-convex portion 721 and an embodiment of the manufacturing apparatus 1 will be described.

[0048] like Figure 15 As shown, the cup-shaped member 7 having the concavo-convex portion 721 has a disk-shaped bottom 71 and a cylindrical portion 72 erected from the bottom 71 . The cylindrical portion 72 has: a small-diameter portion 722 formed by denting the cylindrical portion 72 radially inward; a large-diameter portion 723 protruding radially outward compared with the small-diameter portion 722 ; The tooth surface 724 to which the portion 723 is connected.

[0049] like Figure 1 to Figure 5 As shown, the manufacturing device 1 of the cup-shaped member 7 has: a substantially cylindrical upper punch 10, which has an internal tooth forming part 12 corresponding to the inner peripheral shape of the concave-convex part 721 on its outer peripheral side 11; It has a drawing h...

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Abstract

The present invention relates to a method for manufacturing a cup-shaped component (7) in which an uneven part (721) is formed. The cup-shaped component (7) comprises a bottom part (71), and a cylindrical part (72). The cylindrical part (72) comprises the uneven part (721) which comprises a small diameter part (722), a large diameter part (723), and a tooth surface part (724). The present invention comprises a drawing process in which a material is processed into a cup shape, a preliminary processing process in which a preliminary uneven part (73) is formed, and a finishing process in which the uneven part (721) is formed. In the preliminary processing step, the width dimension (W2) of a preliminary large diameter part (731) is made to be larger than the width dimension of the large diameter part (723) of the uneven part (721).

Description

technical field [0001] This invention relates to the manufacturing method and manufacturing apparatus of the cup-shaped member which has an uneven|corrugated part. Background technique [0002] For clutch hubs and clutch drums of automatic transmissions such as automobiles, a cup-shaped member having a disk-shaped bottom, a cylindrical portion erected from the outer periphery of the bottom, and a concave-convex portion formed on the cylindrical portion is used. The concavo-convex part has: a small-diameter part formed by denting the cylindrical part radially inward; a large-diameter part protruding radially outward from the small-diameter part; and teeth connecting the small-diameter part and the large-diameter part. face. [0003] A cup-shaped member having such concavo-convex portions can be produced by extrusion using a die or forming rolls and punches. The extrusion process using a die has a simpler structure than the case of using a forming roll, so that equipment cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/30B21D17/02B21D17/04
CPCB21D17/04B21D53/28B21D53/34B21D17/02F16D13/683F16D2250/0023
Inventor 中岛勋中岛将木前田笃志
Owner AISIN AW CO LTD
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