CN214290532U

CN214290532U - Connecting cap tooth-shaped forming die for bimetallic brake disc

Info

Publication number: CN214290532U
Application number: CN202023013661.8U
Authority: CN
Inventors: 张迪
Original assignee: Jinan Gold Phoenix Brakes Co ltd
Current assignee: Jinan Gold Phoenix Brakes Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-28
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a connect cap profile of tooth forming die for bimetal brake disc, include: a lower die and an upper die. The lower die is provided with a male die, the shape of the male die is matched with the inner shape of the brake disc connecting cap to be formed, and the outer side of the male die is provided with a first forming tooth profile; a plurality of forming blocks are arranged around the male die, are arranged outside the male die and can move along the radial direction of the brake disc connecting cap to be formed; one side of the forming block facing the male die is provided with a second forming tooth profile, and one side of the forming block departing from the male die is provided with a first wedge-shaped surface. The upper die is provided with a material pressing block, the position of the material pressing block corresponds to that of the male die, a plurality of pushing blocks are arranged on the periphery of the material pressing block, the positions of the pushing blocks correspond to those of the forming blocks, a second wedge-shaped surface is arranged on the pushing blocks, and the second wedge-shaped surface pushes the forming blocks to move radially towards the male die side. Adopt the utility model discloses forming die has reduced the change of wall thickness, can control the work piece wall thickness change after the shaping in less tolerance range.

Description

Connecting cap tooth-shaped forming die for bimetallic brake disc

Technical Field

The utility model relates to a bimetal brake disc makes the field, concretely relates to connection cap profile of tooth forming die for bimetal brake disc.

Background

The brake disc rotates along with the traveling of the automobile, and the brake disc is clamped by the brake calipers to generate braking force, so that the function of speed reduction or parking is achieved. At present, in order to reduce the weight of a brake disc, a plurality of companies design a split type brake disc, namely, the brake disc is divided into a connecting cap and the brake disc. The connecting cap is made of aluminum alloy or other light high-strength metal materials, the brake disc is made of gray cast iron, and the connecting cap and the brake disc transmit shearing force brought by braking through force transmission teeth arranged in the circumferential direction. In the prior art, the tooth profile of the force transmission tooth before a brake disc and a connecting cap is manufactured and formed through a tooth profile forming die, the wall thickness change is large (more than 30%) after the tooth profile forming die in the traditional process is formed, the longitudinal dimension change of a workpiece is large (more than 25%), and a trimming process is required to be added before the tooth profile forming die is used for trimming the longitudinal dimension. Therefore, the connecting cap tooth-shaped forming die for the bimetallic brake disc needs to be provided, so that the forming precision of the tooth shape of the bimetallic brake disc is improved.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a connecting cap tooth-shaped forming mold for a bimetallic brake disc, so as to improve the forming precision of the bimetal brake disc tooth shape.

To achieve the above and other related objects, the present invention provides a connecting cap tooth forming die for a bimetal brake disc, comprising:

the lower die is provided with a male die, the shape of the male die is matched with the inner shape of the brake disc connecting cap to be formed, and a first forming tooth profile is arranged on the outer side of the male die; a plurality of forming blocks are arranged around the male die, are arranged outside the male die and can move along the radial direction of the brake disc connecting cap to be formed; a second formed tooth profile is arranged on one side, facing the male die, of the forming block, and a first wedge-shaped surface is arranged on one side, facing away from the male die, of the forming block;

the brake disc connecting cap comprises an upper die, wherein a material pressing block is arranged on the upper die, the position of the material pressing block corresponds to that of the male die, a plurality of pushing blocks are arranged on the periphery of the material pressing block, the positions of the pushing blocks correspond to those of the forming blocks, a second wedge-shaped surface is arranged on the pushing blocks, the second wedge-shaped surface slides along the first wedge-shaped surface when the upper die moves downwards, and the forming blocks are pushed to move radially towards the side of the male die so as to extrude and form the brake disc connecting cap to be formed.

In an example of the present invention, the plurality of forming blocks are uniformly distributed along a circumference of the male die.

In an example of the present invention, the male mold is provided with a positioning structure for preventing the to-be-molded brake disc connecting cap from rotating.

In an example of the present invention, a guide structure is provided between the upper mold and the lower mold.

The utility model discloses an in the example, still be provided with lower mould magazine on the lower mould, the terrace die is installed on the lower mould, and can follow the moving direction reciprocating motion of last mould is in order to compress or release lower mould magazine's removal end.

The utility model discloses an in the example, still be provided with mould press device on going up the mould, press the briquetting to install go up on the mould, and can follow the moving direction reciprocating motion of last mould is in order to compress or release go up mould press device's removal end.

In an example of the present invention, a reset device of the forming block is further disposed on the lower mold.

In an example of the present invention, the forming block is installed on the lower mold through a guide rail assembly.

In an example of the present invention, the lower mold is provided with a stopper.

In an example of the present invention, the pressing block is provided with a cavity matching with the top shape of the brake disc connecting cap to be formed.

As above, the utility model discloses a connecting cap profile of tooth forming die for bimetal brake disc pushes down the in-process at the last mould, and the first wedge face on the ejector pad removes along the second wedge face on the lower part shaping piece to promote the briquetting along radially removing with extrusion shape wait shaping brake disc connecting cap, thereby reach the shaping work of connecting the cap profile of tooth. The utility model discloses mainly through along radial extrusion's mode, carry out the profile of tooth shaping to the work piece, this kind of form stroke is short, and the work piece warp for a short time to reduced the change of wall thickness, this mould structure can control less tolerance within range with the work piece wall thickness change after the shaping.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 shows a view of the arrangement of the forming block around the punch according to an embodiment of the invention.

Description of the element reference numerals

1. An upper die holder; 2. an upper die pressing device; 3. an upper base plate; 4. a briquetting guide plate; 5. a push block backing plate; 6. a push block fixing plate; 7. positioning pins; 8. a male die; 81. a first shaped tooth profile; 9. a stopper; 10. a lower die base plate; 11. a lower die holder; 12. a lower die ejection device; 13. a guide post; 14. a guide rail mounting plate; 15. a guide rail; 16. forming a block; 161. a second shaped tooth profile; 162. a first wedge-shaped face; 17. a lower die material ejection block; 18. a guide sleeve; 19. a push block; 191. a second wedge-shaped face; 20. pressing blocks; 21. the brake disc is connected with the cap; 22. an upper die pressing device fixing block; 23. an upper die pressing device mounting plate; 24. pressing a plate; 25. an upper working table; 26. and (5) a lower workbench.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the present invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.

When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any number between the endpoints are optional unless the utility model discloses otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and are intended to describe the same, and all methods, apparatus and materials similar or equivalent to those described herein may be used in the practice of this invention.

An object of the utility model is to provide a connection cap profile of tooth forming die for bimetal brake disc to improve the profile of tooth's of bimetal brake disc shaping precision. The utility model discloses connect cap profile of tooth forming die mainly through along radial extrusion's mode, carry out the profile of tooth shaping to the work piece, this kind of form stroke is short, and the work piece warp for a short time to reduced the change of wall thickness, this mould structure can control in less tolerance range with the work piece wall thickness change after the shaping.

Referring to fig. 1 and 2, the present invention provides a connecting cap tooth forming mold for a bimetallic brake disc, including: the die comprises a lower die and an upper die, wherein the upper die is provided with an upper die base 1, an upper padding plate 3 and a pressing block guide plate 4, the upper die base 1, the upper padding plate 3 and the pressing block guide plate 4 are fixed on an upper workbench 25 through four pressing plates 24, the lower die is provided with a lower die base 11 and a lower die padding plate 10, and the lower die base 11 and the lower die padding plate 10 are also fixed on a lower workbench 26 through the four pressing plates 24. The lower die base plate 10 of the lower die is provided with a male die 8, the shape of the male die 8 is matched and matched with the inner shape of the brake disc connecting cap 21 to be formed, the brake disc connecting cap 21 to be formed is installed on the male die 8 during working, and the outer side of the male die 8 is provided with a first forming tooth profile 81 for forming the inner profile of the force transmission tooth of the brake disc connecting cap 21. A plurality of forming blocks 16 are arranged around the male die 8, and the forming blocks 16 are arranged outside the male die 8 and can move along the radial direction of the brake disc connecting cap 21 to be formed. The side of the shaped block 16 facing the punch 8 is provided with a second shaped tooth profile 161 and the side of the shaped block 16 facing away from the punch 8 is provided with a first wedge surface 162. The upper die is characterized in that a push block base plate 5 is arranged on a press block guide plate 4 of the upper die, a push block fixing plate 6 is installed on the push block base plate 5, a push block 19 is arranged on the push block fixing plate 6, a material pressing block 20 is arranged on the push block fixing plate 6, the position of the material pressing block 20 corresponds to that of the male die 8, and a cavity matched with the top of a brake disc connecting cap 21 to be formed in shape is formed in the material pressing block 20. A plurality of pushing blocks 19 are arranged on the periphery of the material pressing block 20, the positions of the pushing blocks 19 correspond to the positions of the forming blocks 16, a second wedge-shaped surface 191 is arranged on the pushing block 19, the second wedge-shaped surface 191 slides along the first wedge-shaped surface 162 when the upper die moves downwards, and the forming blocks 16 are pushed to move radially towards the male die 8 side so as to extrude and form the brake disc connecting cap 21 to be formed.

The utility model discloses in as long as can realize right treat that shaping brake disc connects extrusion forming in the time of cap 21, a plurality of forming blocks 16's distribution state can be do not many and prescribe a limit to the utility model discloses an in the example, a plurality of forming blocks 16 distribute on same circumference, and follow terrace die 8's circumferencial direction equipartition. Preferably, in an example of the present invention, the plurality of shaped blocks 16 is an even number and is uniformly distributed along the circumference of the male die 8. The extrusion force can be offset along the radial direction by the circumferential uniform distribution, and the deformation of other connecting cap structures outside the force transmission teeth is avoided.

In order to prevent treat that shaping brake disc connects the cap and rotates at the extrusion in-process the utility model relates to an example, be provided with on the terrace die 8 and prevent treat that shaping brake disc connects cap pivoted location structure. The utility model discloses an in the example, location structure is for setting up locating pin 7 at 8 tops of terrace dies, treat that the shaping brake disc is connected and be provided with on the cap with the locating hole that locating pin 7 matches, treat that shaping brake disc is connected the cap suit and be in on the terrace die 8, 7 cartridges of locating pin are in the locating hole.

In an example of the present invention, a guide structure is provided between the upper mold and the lower mold. The guide structure comprises a guide post 13 arranged on the lower die (or the upper die) and a guide sleeve 18 correspondingly arranged on the upper die (or the lower die), the guide sleeve 18 corresponds to the guide post 13, and the guide post 13 is inserted into the guide sleeve 18 and is linearly transferred along the axis of the guide sleeve 18 in the moving process of the upper die.

The utility model discloses an in the example, still be provided with lower mould elastic material device 12 on the lower mould, the upper portion of lower mould elastic material device 12 is provided with lower mould filler block, terrace die 8 is installed on lower mould backing plate 10, lower mould elastic material piece top stretch out to terrace die 8 top, and the top is in on the brake disc connection cap, the brake disc connection cap can be followed go up the moving direction reciprocating motion of mould with compression or release lower mould elastic material device 12's removal end (be lower mould elastic material piece). The upper die is further provided with an upper die pressing device 2, the upper die pressing device 2 is installed on the upper die through an upper die pressing device installation plate 23 and an upper die pressing device fixing block 22, the pressing block 20 is installed on the moving end of the upper die pressing device 2 and can move in a reciprocating mode in the moving direction of the upper die to compress or release the moving end of the upper die pressing device 2. It should be noted that, in the present invention, the upper die pressing device 2 and the lower die elastic device 12 are purchased parts and can be obtained through general commercial means, in an example of the present invention, the upper die pressing device 2 and the lower die elastic device 12 are of a nitrogen spring type, and the model thereof can be selected according to the elastic stroke and the elastic force, and is not limited herein.

In an example of the present invention, a forming block resetting device (not shown) is further disposed on the lower mold. The utility model provides a shaping piece resetting means can make the shaping piece reset under the spring action for can removing all suitable structures of back messenger's shaping piece along radial return at the ejector pad, if set up spring structure, remove back messenger's shaping piece at the ejector pad. The utility model discloses an in the example, be provided with dog 9 on the lower mould, dog 9 orientation one side of terrace die be provided with the dog plane that ejector pad outside plane matches, at the in-process that ejector pad 19 promoted shaping block 16 to remove, dog 9 plane and ejector pad outside plane contact, therefore dog 9 provides the direction for ejector pad 19 on the one hand, and on the other hand can offset the yawing force that shaping in-process ejector pad received. The forming block is reset through a tension spring, one end of the tension spring is connected to one side, deviating from the convex die 8, of the forming block, the other end of the tension spring is connected to a stop block 9 of the lower die, and the tension spring extends or shortens along the radial direction of the convex die 8.

The utility model discloses in the shaping piece is in but linear movement installation on the lower mould can be realized through multiple mode, if set up guide rail 15 or guide arm etc. in the utility model discloses an example, the shaping piece passes through guide rail 15 unit mount and is in on the lower mould. The guide rail 15 assembly comprises a guide rail 15 and a sliding block arranged on the guide rail 15, the guide rail 15 is arranged on a guide rail mounting plate 14, the guide rail mounting plate 14 is arranged on the lower die base plate 10, the upper part of the sliding block is arranged on the forming block, and the lower part of the sliding block is arranged on the guide rail 15.

The initial state of the die is in an open state of an upper half die and a lower half die, a brake disc connecting cap to be formed is sleeved on the male die 8 at the moment, a positioning hole is sleeved on the positioning pin 7, an upper workbench 25 of the pressing machine starts to move downwards to drive the whole upper die to move downwards, the material pressing block 20 firstly contacts the brake disc connecting cap to be formed, the upper die material pressing device 2 starts to compress at the moment, pressure is generated and transmitted to the material pressing block 20, the material pressing block 20 presses the brake disc connecting cap to be formed onto the male die 8, the inner surface of the brake disc connecting cap to be formed is attached to the outer surface of the male die 8, and the lower die material ejecting device 12 compresses at the moment to generate upward elastic force; then, the second wedge-shaped surface 191 of the push block starts to contact the first wedge-shaped surface 162 of the forming block, the forming block starts to move horizontally, the second forming tooth profile 161 of the forming block contacts the brake disc connecting cap 21 to be formed, the brake disc connecting cap 21 to be formed is extruded and deformed, and the first forming tooth profile 81 of the outer surface of the male die 8, which contacts the inner surface of the brake disc connecting cap 21 to be formed, forms the brake disc connecting cap 21. After the forming is finished, the upper workbench 25 moves upwards to drive the push block 19 to move upwards, the second wedge-shaped surface 191 is separated from the first wedge-shaped surface 162, the forming block 16 returns under the action of the spring, the upper die pressing device 2 returns, the elastic force is transmitted to the pressing block 20, and the pressing block 20 continues to move upwards along with the upper workbench 25 to be separated from the brake disc connecting cap 21 to be formed; at the moment, the lower die elastic material device 12 starts to return, the elastic force is transmitted to the brake disc connecting cap 21 to be formed through the lower die elastic material block 17, the brake disc connecting cap to be formed is ejected out and taken away, and a cycle is finished.

As above, the utility model discloses a connecting cap profile of tooth forming die for bimetal brake disc pushes down the in-process at the last mould, and the first wedge face on the ejector pad removes along the second wedge face on the lower part shaping piece to promote the briquetting along radially removing with extrusion shape wait shaping brake disc connecting cap, thereby reach the shaping work of connecting the cap profile of tooth. The utility model discloses mainly through along radial extrusion's mode, carry out the profile of tooth shaping to the work piece, this kind of form stroke is short, and the work piece warp for a short time to reduced the change of wall thickness, this mould structure can control less tolerance within range with the work piece wall thickness change after the shaping. Therefore, the utility model discloses thereby effectively overcome some practical problems among the prior art and had very high use value and use meaning.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A connecting cap tooth form forming die for a bimetallic brake disc is characterized by comprising:

2. A coupling cap tooth forming die according to claim 1, wherein said plurality of forming blocks are uniformly distributed along the circumference of said male die.

3. A tooth-shaped forming die for a connecting cap according to claim 1, wherein a positioning structure for preventing the brake disc connecting cap to be formed from rotating is arranged on the male die.

4. A tooth forming die for connecting cap according to claim 1, wherein a guide structure is provided between said upper die and said lower die.

5. A connecting cap tooth form forming die as claimed in claim 1, wherein a lower die charge means is further provided on said lower die, and said male die is mounted on said lower die and reciprocally movable in a moving direction of said upper die to compress or release a moving end of said lower die charge means.

6. A connecting cap tooth forming die as claimed in claim 1, wherein an upper die pressing device is further provided on the upper die, and the pressing block is mounted on the upper die and is reciprocally movable in a moving direction of the upper die to compress or release a moving end of the upper die pressing device.

7. A tooth forming die for a connecting cap as claimed in claim 1, wherein a forming block returning means is further provided on said lower die.

8. A connecting cap tooth forming die as claimed in claim 1, wherein said forming block is mounted on said lower die by a rail assembly.

9. A tooth forming die for connecting cap according to claim 1, wherein a stopper is provided on said lower die.

10. A connecting cap tooth forming die as claimed in claim 1, wherein the swaging block is provided with a cavity matching the shape of the top of the brake disc connecting cap to be formed.