CN217617266U

CN217617266U - Saddle-shaped wave spring forming clamp

Info

Publication number: CN217617266U
Application number: CN202221207230.1U
Authority: CN
Inventors: 李龙; 周兴友; 张彪
Original assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Current assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-10-21
Anticipated expiration: 2032-05-11

Abstract

The utility model discloses a saddle-shaped wave spring forming clamp, which comprises an upper clamp, a lower clamp and an outer guide sleeve, wherein the upper clamp and the lower clamp are in clearance fit with the outer guide sleeve; the outer side wall of the upper clamp is provided with a second limiting guide key, and a limiting guide hole matched with the limiting guide shaft is axially arranged at the circle center of the upper clamp. The utility model skillfully solves the shaking problem and the uneven stress problem of the saddle-shaped wave spring in the forming process and solves the rotation dislocation problem of the upper clamp and the lower clamp in the spring forming process through the structural design of the upper clamp, the lower clamp and the outer guide sleeve; the problem of radial deviation of an upper clamp, a lower clamp and a spring in the process of forming the saddle-shaped wave spring is solved; the molded spring product is ensured to have high size consistency and high force value characteristic consistency.

Description

Saddle-shaped wave spring forming clamp

Technical Field

The utility model relates to a wave spring adds clamping apparatus, especially relates to a saddle-shaped wave spring shaping anchor clamps.

Background

The existing saddle-shaped wave spring is generally formed by stamping a circular ring-shaped spring blank by using an upper clamp and a lower clamp, but the clamps are easy to rotate at a certain angle and dislocate in the stamping process of the spring blank; saddle-shaped wave spring forming process easily produces and rocks, and the atress is inhomogeneous, and wave height is inconsistent, trough height size is also inconsistent after the shaping, and the product is asymmetric, and many parameters of the saddle-shaped wave spring after the shaping can be unqualified for the requirement as: the heights of the wave crests of the single saddle-shaped wave spring are often inconsistent and the wave crests are asymmetric, and the heights of the wave troughs are often inconsistent and the wave troughs are asymmetric; the saddle-shaped wave spring products formed in different batches have poor consistency and large difference in size and height; the force value of the saddle-shaped wave spring can not meet the requirement, and the yield is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem to be solved by the present invention is: the problem of realize that forming fixture is stable not misplace in providing the shape of a saddle wave spring forming process, the spring does not rock, the spring atress is even, the spring irrotational dislocation, realize that the shape of a saddle spring product uniformity after the shaping is high, crest symmetry, trough symmetry, crest height are the same, trough height is the same, the product yields is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a saddle-shaped wave spring forming clamp comprises an upper clamp, a lower clamp and an outer guide sleeve, wherein the upper clamp and the lower clamp are in clearance fit with the outer guide sleeve, a limiting groove is axially formed in the inner side of the outer guide sleeve, a first limiting guide key matched with the limiting groove is arranged on the outer side wall of the lower clamp, and a limiting guide shaft is upwards arranged at the center of a circle at the top of the lower clamp; the outer side wall of the upper clamp is provided with a second limiting guide key matched with the limiting groove, and a limiting guide hole matched with the limiting guide shaft is axially formed in the circle center of the upper clamp.

Preferably, the limiting guide shaft is square, the limiting guide hole is square, and the limiting guide shaft is in clearance fit with the limiting guide hole.

Preferably, the bottom surface of the upper clamp is provided with a saddle-shaped upper forming surface; the top surface of lower anchor clamps is provided with the lower shaping face of shape of a saddle.

Preferably, the inner side wall of the outer guide sleeve is in contact with the outer side wall of the lower clamp and the outer side wall of the upper clamp to form axial guide.

Preferably, the outer side wall of the limit guide shaft is in contact with the inner side wall of the limit guide hole to form axial guide.

According to the above technical scheme, the beneficial effects of the utility model are that:

compared with the prior art, the method has the advantages that,

(1) The utility model has the advantages that the limiting groove is axially arranged on the inner side of the outer guide sleeve, the first limiting guide key matched with the limiting groove is arranged on the outer side wall of the lower clamp, the second limiting guide key matched with the limiting groove is arranged on the outer side wall of the upper clamp, the top circle center of the lower clamp is upwards provided with the structural design of the square limiting guide shaft, and the limiting guide hole of the upper clamp is matched, so that the problems of shaking and uneven stress of the saddle-shaped wave spring in the forming process are solved, and the problem of rotation dislocation of the upper clamp and the lower clamp in the spring forming process is solved; and the problem of radial deviation of the upper clamp, the lower clamp and the spring in the process of forming the saddle-shaped wave spring is solved.

(2) The outer guide sleeve, the limiting groove, the upper clamp and the lower clamp are matched, and the limiting guide shaft is matched with the limiting guide hole, so that the size consistency of spring products in the forming process of the saddle-shaped wave spring is enhanced, and the rotation dislocation degree of a die and the radial deviation of the saddle-shaped wave spring are reduced; the top centre of a circle department of anchor clamps is gone up and is equipped with the structural design of square spacing guiding axle down, and the spacing guiding hole that cooperates upper clamp prevents in the forming process that the peripheral rotation of upper and lower anchor clamps, the dislocation of spring play and strengthen stabilizing effect to saddle wave spring.

(3) The formed saddle-shaped wave spring has symmetrical wave crests and wave troughs, the same wave crest height and wave trough height, the size consistency of the spring product is high, and the force value characteristic consistency of the saddle-shaped wave spring is high.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along the line A-A in FIG. 1;

fig. 3 is a schematic top view of an outer guide sleeve according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper clamp in an embodiment of the present invention;

fig. 5 is a schematic structural view of the lower clamp in the embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below: 1. an upper clamp; 11. a second limit guide key; 12. a square limiting guide hole; 13. forming a molding surface; 2. a lower clamp; 21. a first limit guide key; 22. a square limit guide shaft; 23. a lower molding surface; 3. an outer guide sleeve; 31. and a limiting groove.

Detailed Description

For those skilled in the art to further understand the features and technical contents of the present invention, refer to the following detailed description and accompanying drawings.

As shown in fig. 1-5, a saddle-shaped wave spring forming fixture comprises an upper fixture 1, a lower fixture 2, and an outer guide sleeve 3, wherein a limit groove 31 is axially arranged on the inner side of the outer guide sleeve 3, a first limit guide key 21 matched with the limit groove 31 is arranged on the outer side wall of the lower fixture 2, and a square limit guide shaft 22 is upwards arranged at the center of the top circle of the lower fixture 2; the outer side wall of the upper clamp 1 is provided with a second limiting guide key 11 matched with the limiting groove 31, the center of the circle of the upper clamp 1 is axially provided with a square limiting guide hole 12 matched with the square limiting guide shaft 22, and the upper clamp 1 and the lower clamp 2 are in clearance fit with the outer guide sleeve 3.

As shown in fig. 4-5, the bottom surface of the upper clamp 1 is provided with a saddle-shaped upper forming surface 13; the top surface of the lower clamp 2 is provided with a saddle-shaped lower forming surface 23.

As shown in fig. 1-5, the inner side wall of the outer guide sleeve 3 contacts with the outer side wall of the lower clamp 2 and the outer side wall of the upper clamp 1 to form axial guide; the outer side wall of the square limit guide shaft 22 is in contact with the inner side wall of the square limit guide hole 12 to form axial guide.

The inner side of the outer guide sleeve 3 is axially provided with a limiting groove 31 during forming, the outer side wall of the lower clamp 2 is provided with a first limiting guide key 21 matched with the limiting groove 31, the outer side wall of the upper clamp 1 is provided with a second limiting guide 11 key matched with the limiting groove 31, the center of the top of the lower clamp 2 is upwards provided with a structural design of a square limiting guide shaft 22, and the square limiting guide hole 12 of the upper clamp 1 is matched, so that the problems of shaking and uneven stress of the saddle-shaped wave spring in the forming process are solved, and the problem of rotation dislocation of the upper clamp 1 and the lower clamp 2 in the spring forming process is solved; the radial deviation problem of the upper clamp 1, the lower clamp 2 and the spring in the forming process of the saddle-shaped wave spring is prevented; the cooperation of the outer guide sleeve 3, the limit groove 31, the upper fixture and the lower fixture and the cooperation of the square limit guide shaft 22 and the square limit guide 12 guide hole enhance the size consistency of spring products in the forming process of the saddle-shaped wave spring and reduce the rotation dislocation degree of the mold.

The basic principles, main features and advantages of the present invention compared to the prior art have been described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a shape of a saddle wave spring shaping anchor clamps, includes anchor clamps, lower anchor clamps, its characterized in that: the upper clamp and the lower clamp are in clearance fit with the outer guide sleeve, a limiting groove is axially formed in the inner side of the outer guide sleeve, a first limiting guide key matched with the limiting groove is arranged on the outer side wall of the lower clamp, and a limiting guide shaft is upwards arranged at the center of the top of the lower clamp; the outer side wall of the upper clamp is provided with a second limiting guide key matched with the limiting groove, and a limiting guide hole matched with the limiting guide shaft is axially formed in the circle center of the upper clamp.

2. The saddle-shaped wave spring forming clamp of claim 1, wherein: the limiting guide shaft is square, the limiting guide hole is square, and the limiting guide shaft is in clearance fit with the limiting guide hole.

3. The saddle-shaped wave spring forming clamp of claim 1, wherein: the bottom surface of the upper clamp is provided with a saddle-shaped upper forming surface; the top surface of lower anchor clamps is provided with the lower shaping face of shape of a saddle.

4. The saddle-shaped wave spring forming clamp of claim 1, wherein: the inner side wall of the outer guide sleeve is in contact with the outer side wall of the lower clamp and the outer side wall of the upper clamp to form axial guide.

5. The saddle-shaped wave spring forming clamp of claim 1, wherein: the outer side wall of the limiting guide shaft is in contact with the inner side wall of the limiting guide hole to form axial guide.