CN213410158U

CN213410158U - Bump jump ring forming device

Info

Publication number: CN213410158U
Application number: CN202021510682.8U
Authority: CN
Inventors: 白新华; 张自超
Original assignee: Lizhou Qingdao Hardware Spring Co ltd
Current assignee: Lizhou Qingdao Hardware Spring Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-06-11
Anticipated expiration: 2030-07-28

Abstract

The utility model provides a bump clamp spring forming device, which comprises a fixed central die fixed on a device shell; a convex point concave die arranged on the central die; the punching device comprises a forming cutter horizontally arranged at the rear side of the central die, a round forming cutter vertically arranged above the central die, a tail end round forming cutter arranged on a three-dimensional cutter holder fixed on a device shell, a cutter obliquely arranged at the front side of the central die and a convex point punch positioned on the side surface of the tail end round forming cutter. The bump clamp spring forming device can produce bump clamp springs meeting requirements, can prevent indentation in the forming process from being generated, effectively improves the quality of the bump clamp springs, can bear larger impact without deformation, and effectively prolongs the service life of the bump clamp springs.

Description

Bump jump ring forming device

Technical Field

The utility model belongs to the technical field of the jump ring processing, concretely relates to bump jump ring forming device.

Background

A circlip is a commonly used circular mechanical fastener with an opening. The convex point clamp spring is characterized in that a bulge which is vertical to the circle center is arranged on a circular ring of the clamp spring, and the convex point is a convex point on the plane and has the size smaller than 2 line diameters.

The forming equipment for producing the common clamp spring cannot meet the requirement of forming the bump clamp spring in the steel wire winding process, so that the bump clamp spring meeting the standard cannot be produced, but the position of the bump and the vertical deviation cannot be ensured if the bump clamp spring is formed twice. In addition, some devices capable of processing the convex point snap springs are easy to press marks on the convex point snap springs in the processing process, so that the convex point snap springs are broken in the using process, and the service life of the snap springs is shortened.

SUMMERY OF THE UTILITY MODEL

In order to overcome and solve the problem in the above-mentioned background art, the utility model provides a bump jump ring forming device. The bump clamp spring produced by the bump clamp spring forming device is not provided with an indentation and is more durable.

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

the utility model provides a bump jump ring forming device, include

A center die installed on a fixing plate fixed to a device case;

the convex point female die is arranged on the central die, is provided with a groove and is used for pressing a convex point on the convex point clamp spring;

the forming cutter set is fixed on the device shell and comprises a forming cutter, a round forming cutter and a tail end round forming cutter; the forming cutter is horizontally arranged at the rear side of the central die, and the round forming cutter is vertically arranged above the central die; the tail end round forming cutter is arranged on a three-dimensional cutter holder fixed on the device shell;

the cutter is fixed on the device shell, is obliquely arranged on the front side of the central die, and has an oblique sharp cutting edge at the front end;

and the convex point punch is arranged on the three-dimensional cutter holder, is vertical to the convex point female die and is positioned on the side surface of the tail end round forming cutter.

Furthermore, the forming cutter, the round forming cutter and the tail end round forming cutter have the same structure.

Furthermore, the forming cutter, the round forming cutter and the tail end round forming cutter respectively comprise a fixing piece and a workpiece; the workpiece is fixed on the device shell through a fixing piece, and the top end of the workpiece is in a semicircular concave shape.

Furthermore, the concave inner diameters of the top semicircles of the forming cutter, the circular forming cutter and the tail end circular forming cutter are matched with the radian of the outer circumference of the central die, and are used for machining the outer diameter of the clamp spring.

Furthermore, the plane central lines of the forming cutter and the round forming cutter are aligned with the circle center of the center die.

Further, the cutter comprises a fixing piece and a workpiece; the workpiece is fixed on the device shell through a fixing piece, and the front end of the workpiece is provided with an oblique sharp blade.

Further, the clearance between the forming cutter and the cutting knife and the central die is smaller than the wire diameter.

Further, a wire guide plate and a wheel wire are fixed to the device housing on the front side of the center die in the horizontal direction.

Furthermore, the external diameter size of the bump clamp spring is less than 0.2 mm.

Furthermore, the groove on the convex point concave die is matched with the protrusion on the convex point clamp spring.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the bump clamp spring forming device can produce bump clamp springs meeting requirements, can prevent indentation in the forming process from being generated, effectively improves the quality of the bump clamp springs, can bear larger impact without deformation, and effectively prolongs the service life of the bump clamp springs.

Drawings

Fig. 1 is a schematic structural diagram of the bump clamp spring forming device.

Fig. 2 is a schematic diagram of the bump clamp spring.

Wherein: 1. a bump clamp spring; 2. a center die; 3. a round forming cutter; 4. a cutter; 5. forming a cutter; 6. a convex point punch; 7. a forming cutter with a round end; 8. a convex point female die; 9. a steel wire; 10. a wheel feeding line; 11. a wire guide plate; 12. a fixing plate; 13. a solid tool apron.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following specific embodiments. It should be noted that, as used herein, the term "bump clamp spring forming device" or "forming device" may be used interchangeably and refer to the bump clamp spring forming device of the present invention. The utility model discloses in with the direction of sending wheel line 10 as preceding, use the direction of shaping sword 5 as the back.

Referring to the attached figure 1, the bump snap spring forming device comprises a center die 2, a forming cutter set, a cutter 4, a bump punch 6 and a bump female die 8.

The fixed plate 12 is installed on the device shell, and the central mold 2 is installed on the fixed plate 12 and used for controlling the inner diameter of the clamp spring to be manufactured. The convex point concave die 8 is arranged on the central die 2, and is provided with a groove which can be used for pressing a convex point on the convex point clamp spring.

The forming cutter set comprises a round forming cutter 3, a forming cutter 5 and a tail end round forming cutter 7. The cutters in the forming cutter group have the same structure and comprise a fixing piece and a workpiece; the forming cutter group is used for fixedly mounting the workpiece on the device shell through a fixing piece. The top end of the workpiece of the forming cutter set is in a semicircular concave shape, the size of the circular inner diameter is matched with the outer circumference radian of the central die 2, the outer diameter of the clamp spring can be processed when the forming cutter set is combined with the central die 2, and the outer diameter of the clamp spring can be guaranteed to be within 0.2mm due to the fact that the forming cutter set and the central die 2 are extruded simultaneously.

The forming cutter 5 is arranged at the rear side of the central die 2, wherein the line is on the same horizontal line with the diameter of the central die 2; a circular forming knife 3 is mounted above the central die 2 with the line on the same vertical line as the diameter of the central die 2. The cutter 4 is installed obliquely at the front side of the center die 2, and is also divided into a fixing member by which the workpiece is installed on the device case and a workpiece having a sharp cutting edge obliquely at the front end thereof for cutting the steel wire 9. The clearance between the forming cutter set and the cutter 4 and the central die 2 is smaller than the wire diameter of the steel wire 9, so that the consistency of the whole outer diameter of the clamp spring is ensured, and the flatness of the clamp spring is controlled within 0.5 by slotting in the forming cutter set and the cutter 4.

The salient point punch 6 is arranged on a three-dimensional cutter holder 13 fixed on the device shell and is vertical to the salient point female die 8. And the tail end circle forming cutter 7 is fixed on the three-dimensional cutter holder 13 and is positioned on the front side of the salient point punch 6 and used for forming the excircle of the clamp spring. A wire guide 11 and a wheel wire 10 for fixing and feeding the wire 9 are also fixed to the apparatus housing on the front side of the center die 2.

The bump clamp spring forming device utilizes a wire feeding principle of the device to load a steel wire 9 onto a wheel feeding wire 10 and a wire guide plate 11, calculates the expansion length of the clamp spring according to the size of the bump clamp spring required in practice, controls the inner diameter of the clamp spring by a central die 2, and controls the sending length of the steel wire 9 by a computer connected with the forming device. Operating the forming device, slowly feeding the steel wire 9 into the device by the wheel feeding line 10, pressing the steel wire 9 into a circle by the movement of the circle forming cutter 3, and fixing the steel wire 9; at the moment, the cutter 4 moves to cut off the steel wire 9, the forming cutter 5 and the tail end circle forming cutter 7 move to form the excircle of the clamp spring, and the clamp spring is formed at the moment. After the forming of the clamp spring is completed, the convex point punch 6 and the convex point female die 8 work, the convex point punch 6 moves forwards to the convex point female die 8, a groove matched with the wire diameter is carved on the convex point punch 6 and the convex point female die 8 by applying pressure, meanwhile, the vertical direction in the forming process of the clamp spring can be controlled, the convex point indentation in the forming process is prevented, and the service life of the clamp spring is effectively prolonged. The bump clamp spring manufactured by the bump clamp spring forming device can bear the impact of 1.2 ten thousand newtons, no permanent deformation is generated after the elasticity is reduced by 2mm, and the roundness reaches within 0.3 mm. The bump snap spring manufactured by the bump snap spring forming device is shown in figure 2, is in a circular shape with an opening, and is provided with a bump.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. The utility model provides a bump jump ring forming device which characterized in that includes:

a center die installed on a fixing plate fixed to the device case;

2. The bump circlip forming device as claimed in claim 1 wherein the forming knife, the round forming knife and the end round forming knife are the same in structure.

3. The bump circlip forming device according to claim 2 wherein the forming cutter, the round forming cutter and the end round forming cutter each comprise a fixing member and a workpiece; the workpiece is fixed on the device shell through a fixing piece, and the top end of the workpiece is in a semicircular concave shape.

4. The bump circlip forming device of claim 3 wherein the inner diameters of the semi-circular concave shapes at the top ends of the forming cutter, the circular forming cutter and the end circular forming cutter are all matched with the radian of the outer circumference of the central die for processing the outer diameter of the circlip.

5. The bump circlip forming device as claimed in claim 1 wherein the planar centerlines of the forming knife and the circle forming knife are aligned with the center of the center die.

6. The bump circlip forming device according to claim 1, wherein the cutter comprises a fixing member and a workpiece; the workpiece is fixed on the device shell through a fixing piece, and the front end of the workpiece is provided with an oblique sharp blade.

7. The bump circlip forming device as claimed in claim 1 wherein the clearance between the forming knife and the cutter and the central die is smaller than the wire diameter.

8. The bump circlip forming device according to claim 1, wherein a wire guide plate and a wheel feeding line are further fixed to the device housing on the front side of the center die in the horizontal direction.

9. The bump clamp spring forming device according to claim 1, wherein the bump clamp spring has an outer diameter of less than 0.2 mm.

10. The bump-circlip forming device according to claim 1, wherein the groove on the bump female die is matched with the protrusion on the bump circlip.