JPH0623630U - Caulking device for cap body - Google Patents

Abstract

(57) [Abstract] [Purpose] Scratch does not easily occur on the outer peripheral surface of the peripheral wall of the cap body, and if the cap body has the same outer diameter and the same body member shape, it can be used regardless of its weight. An inexpensive crimping device is provided. [Structure] A body member 9 is fitted and inserted into a cap body 7 in which a peripheral wall portion 7b and a bottom portion 7a are integrally formed.
A crimping device for crimping an end portion of b to clamp and fix the body member 9 between the crimping portion and the bottom portion 7a, and accommodates the cap body 7 in which the body member 9 is fitted and inserted. The cap receiver 6 in which the concave portion 8 is formed is fixedly arranged,
The punch 1 is arranged to face the cap receiver 6 so that the punch 1 can approach or separate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a caulking device for a cap used for assembling an EGR (exhaust gas recirculation device) control valve of an automobile or the like.

[0002]

[Prior art]

 In the EGR control valve, a body member is fitted and inserted into a cap body in which a peripheral wall portion and a bottom portion are integrally formed, and an end portion of the peripheral wall portion is caulked so that the body member is interposed between the caulking portion and the bottom portion. And clamping and fixing an operating pressure introducing space between the bottom and the body member, and connecting an external pressure generating device to this operating pressure introducing space via a nipple provided on the bottom. is doing.

Conventionally, when the end of the peripheral wall portion of the cap body is swaged in the assembly work of the EGR control valve as described above, as shown in FIG. 3, the half-divided type fixed punch 20 can be approached or separated. The pressing rams 21 are arranged so as to face each other so as to be able to approach or separate from the fixed punch 20 above the fixed punch 20, and the support urged upward by the spring 22 inside the fixed punch 20. Two caulking devices with the table 23 are used. Then, as shown in FIG. 4, in the first caulking device, the fixed punch 20 is opened, and the cap body 25 in which the body member 24 is inserted is inserted into the device to mount it on the support table 23. Then, the fixed punch 20 is closed, and the pressing ram 21 is moved downward by a driving device (not shown) to push down the body member 24 and the cap body 25 against the force of the spring 22 to mount them on the body member 24. With the bottom portion 25a of the cap body 25 and the peripheral wall portion 25b in close contact with the flange 24a, the end portion of the peripheral wall portion 25b is pressed by 45 ° by the caulking surface 20a inclined by 45 ° with respect to the vertical movement direction of the pressing ram of the fixed punch 20. After tightening, take it out of the device. Then, the same work is performed in a second crimping device (not shown), and the crimping portion formed by crimping at the end of the peripheral wall portion 25b is crimped at right angles to the vertical movement direction of the pressing ram of the fixed punch. The surface (20b shown in FIG. 4) was further caulked to 90 °, and the body member 24 (flange 24a) was clamped and fixed between the bottom portion 25a of the cap body 25 and the caulked portion.

[0004]

[Problems to be solved by the device]

 However, the conventional caulking device is designed with the shape of the body member 24 as a reference, and the fixed punch 20 and the like need to be prepared every time the shape of the body member 24 is changed. Since the cap body 25 is pressed down by the pressing ram 21 and deformed following the crimping surface 20a of the fixed punch 20, as shown in FIG. 5, the outer peripheral surface of the peripheral wall portion 25b of the cap body 25 has a full circumference. An unsightly vertical scratch 26 is likely to occur, which causes the plating to peel off. Since the body member 24 is supported by the support base 23 and the escape of the body member 24 is taken by the depression of the support base 23, the support mechanism must have a strength corresponding to the body member 24. Further, the shape of the fixed punch 20 in consideration of the clearance of the body member 24 is complicated, and it is difficult and expensive to manufacture and repair the fixed punch 20.

This invention has been made in order to solve the above-mentioned conventional problems. It is difficult for the outer peripheral surface of the peripheral wall portion of the cap body to be scratched, and the outer diameter of the cap body is the same and the shape of the body member is the same. The objective is to provide a simple and inexpensive caulking device that can be used regardless of its weight.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, according to the present invention, a body member is fitted and inserted into a cap body in which a bottom portion is integrally formed from a peripheral wall portion, and an end portion of the peripheral wall portion is swaged to form a swaged portion and the swaged portion. A caulking device for sandwiching and fixing the body member between the cap member and a bottom portion, wherein a cap receiver having a recessed portion for accommodating the cap body in which the body member is inserted is fixedly arranged. The punch is arranged so as to be able to approach or separate from the bridge so that the end of the peripheral wall portion is caulked to the body member by the punch.

[0007]

With this configuration, after the cap body having the body member fitted therein is fitted and seated in the recessed portion of the cap receiver, the punch is brought closer to the cap receiver, whereby the peripheral wall portion of the cap body is secured. The ends can be crimped.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an overall front view partially showing an example of the crimping device in section, and FIG. 2 is a sectional view partially showing another example of the crimping device.

In the figure, 1 is a half-punch type punch that is divided into left and right to form an opening 2, and 3 is a pair of left and right punch holders.

The punch 1 is attached to the punch holder 3 so as to be movable up and down, and is supported in the upper limit position by a spring 4 that is contracted between the punch holder 3 and the punch holder 3. It can be opened and closed by moving.

A lower portion of the punch 1 on the tip side is formed with a crimping surface 5 inclined by 45 ° with respect to the vertical movement direction of the punch.

A block-shaped cap receiver 6 is fixedly arranged inside the punch holder 3.

A recess 8 for fixedly supporting the cap body 7 is formed in the upper portion of the cap receiver 6 so as to face the opening 2 of the punch 1.

A bottom portion 7a of the cap body 7 is integrally formed from a peripheral wall portion 7b, and the bottom portion 7a and the peripheral wall portion 7b can contact a flange 9a formed at one end of the body member 9.

The recess 8 is formed so that it can be fitted and seated on the bottom 7 a side of the cap body 7.

Reference numeral 10 is a vertically moving ram, 11 is a punch actuating member, and 12 is a body retainer.

The vertical ram 10 is arranged above the cap receiver 6 so as to be able to approach or separate from the cap receiver 6. The punch actuating member 11 is suspended in the vertically moving ram 10 so as to be vertically movable, and has a stepped portion with a small diameter portion 11a that abuts a lower surface of the vertically moving ram 10 and a large diameter portion 11b that abuts an upper surface of the punch 1. It has a cylindrical shape. The body retainer 12 is housed inside the punch actuating member 11 and is attached to the vertically moving ram 10 so as to be vertically movable, and is moved to a lower limit position by a spring 13 that is contracted between the body pressing member 12 and the vertically moving ram 10. It is supported.

In the above structure, the punch 1 is opened by the movement of the punch holder 3, and the cap body 7 into which the flange 9a provided at one end of the body member 9 is fitted is fitted into the recess 8 of the cap receiver 6 and is seated. After that, when the punch 1 is closed and the vertical moving ram 10 is moved downward by a driving device (not shown), the large diameter portion 11b of the punch actuating member 11 first rests on the upper surface of the punch 1 and stops. After that, when the vertical ram 10 is moved downward, the body presser 12 then contacts the base surface 9b provided at the other end of the body member 9 and the spring 13 is compressed. The cap body 7 and the body member 9 are pressed and fixed in the recess 8 of the cap receiver 6 by the increasing spring force. When the vertical movement ram 10 moves downward by a certain stroke, the vertical movement ram 10 comes into contact with the upper end of the small diameter portion 11a of the stopped punch operation member 11, so that the vertical movement ram 10 causes the punch 1 to move downward through the punch operation member 11. While being pushed, the spring 1 is compressed and the punch 1 moves downward along the punch holder 3 toward the end of the peripheral wall portion 7b of the cap body 7 along the side of the body member 9. Therefore, the crimping surface 5 of the punch 1 crimps the end portion of the peripheral wall portion 7b by 45 °. After that, the vertical ram 10 is moved upward, the punch 1 is opened, and the cap body 7 and the body member 9 are taken out of the apparatus by the procedure reverse to the above. Next, the same work is performed in a caulking device (not shown) having the same configuration except that the caulking device and the caulking surface are at 90 ° with respect to the vertical movement direction of the punch. With the 90 ° swaging surface, the swaging portion formed by swaging at the end of the peripheral wall portion 7b is further swung up to 90 °. Thereby, the body member 9 (flange 9a) is clamped and fixed between the bottom portion 7a of the cap body 7 and the caulking portion, and the assembling work is completed.

In each caulking step in this assembling work, the bottom portion 7a of the cap body 7 is pressed and fixed in the concave portion 8 of the cap receiver 6 and does not move, so that the outer peripheral surface of the peripheral wall portion 7b of the cap body 7 is fixed. Has no vertical scratches.

In this embodiment, the half-punch type punch 1 is used. However, as shown in FIG. 2, a cylindrical punch 16 is integrally provided at the lower part of the vertically moving ram (not shown), and A crimping surface 17 is formed inside the lower end of the punch 16, and a ring-shaped guide projection 18 having a guide surface 18a connected to the crimping surface 17 on the inner side is formed on the lower end of the punch 16. A guide groove portion 19 that is fitted to the guide protrusion portion 18 in the punch movement direction is formed continuously with the concave portion 8 of the cap receiver 6, and the caulking surface 17 formed on the punch 16 forms a peripheral wall portion of the cap body 7. You may crimp the edge part of 7b.

[0022]

[Effect of device]

 As described above, according to the present invention, the body member is fitted and inserted into the cap body in which the bottom portion is integrally formed from the peripheral wall portion, and the bottom side of the cap body in which the body member is fitted is inserted into the recess of the cap receiver. After fitting and seating, the punch is brought closer to the cap receiver to crimp the end of the peripheral wall portion of the cap body, and the body member is clamped and fixed between the crimping portion and the bottom portion. In the caulking process, the bottom side of the cap body is fixed in the recess of the cap receiver and does not move, so that the outer peripheral surface of the peripheral wall portion of the cap body is less likely to be scratched compared to the conventional case, and the product quality can be improved. In addition, since the body member can be supported on the cap receiver via the cap body and the clearance can be taken to the upper side, if the cap body has the same diameter and the body member has the same shape, its weight is reduced. It can be used regardless of the type, and is more versatile than before. Further, the punch or the like can be made smaller and lighter, and its manufacture or modification can be performed easily and inexpensively.

[Brief description of drawings]

FIG. 1 is a front view of a partial cross-section showing an overall crimping device according to an embodiment of the present invention.

FIG. 2 is a front view partially showing a crimping device according to another embodiment of the present invention.

FIG. 3 is a front view of a partial cross-section showing the entire conventional crimping device.

FIG. 4 is a process diagram of caulking by the caulking device shown in FIG.

FIG. 5 is a partial perspective view of a cap body manufactured by a conventional caulking device.

[Explanation of symbols]

 1 Half type punch 5 Caulking surface 6 Cap receiving 7 Cap body 7a Bottom part 7b Peripheral wall part 8 Recess 9 Body member 9a Flange 11 Punch actuating member 12 Body retainer 16 Punch 17 Caulking surface 18 Guide protrusion 19 Guide groove part

Claims (1)

[Scope of utility model registration request] 1. A body member is fitted and inserted into a cap body having a peripheral wall portion and a bottom portion formed integrally with each other, and an end portion of the peripheral wall portion is swaged to secure the body member between the swaged portion and the bottom portion. A caulking device for sandwiching and fixing, wherein a cap receiver having a recess for accommodating the cap body into which the body member is inserted is fixedly arranged, and a punch can be moved toward or away from the cap receiver. A caulking device for a cap body, wherein the caulking devices are arranged so as to face each other, and the punch is used to caulk an end portion of the peripheral wall portion.