CN215786140U

CN215786140U - Anti-flash stamping die

Info

Publication number: CN215786140U
Application number: CN202120918024.0U
Authority: CN
Inventors: 饶涛
Original assignee: Chongqing Bishan Maoyu Machinery Manufacturing Co ltd
Current assignee: Chongqing Bishan Maoyu Machinery Manufacturing Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-02-11
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to the field of dies and discloses an anti-flash stamping die which comprises a lower die assembly and an upper die assembly, wherein the lower die assembly comprises a lower die body, the top of the lower die body protrudes upwards, the upper die assembly comprises an upper die body, the bottom of the upper die body protrudes downwards, and the upper die body is right opposite to the lower die body. In the utility model, because the downward bulge of the bottom of the upper die body has taper and the upward bulge of the top of the lower die body has taper, the upper surface of the blank obtained by stamping the upper die body and the lower die body is sunken downward, and the lower surface of the blank is sunken upward, in the ring rolling machine processing process, after the blank is subjected to extrusion force, the material in the middle of the blank firstly supplements the defect of the sunken part of the blank, thereby reducing the material for forming flash, further shortening the length of the flash and lightening the flash removing workload.

Description

Anti-flash stamping die

Technical Field

The utility model relates to the field of dies, in particular to a flash-proof stamping die.

Background

A synchronizer is a device for synchronizing gears coupled to each other in shifting. In the production and manufacturing process of the synchronizer, the raw materials are firstly punched into a short cylindrical blank on a punching machine, then the blank is processed by using a ring rolling mill, the rolling forming of the thickness reduction and the diameter expansion of the blank is realized, and the blank is processed into a circular ring piece for the subsequent processing into the synchronizer. At present, the length of the flash of the circular ring piece machined by the ring rolling machine is long, so that the flash removing work needs to be carried out on the circular ring piece, the flash removing work is time-consuming and labor-consuming due to the fact that the length of the flash is long, the workload of workers is increased, and the production efficiency of synchronizers is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flash-preventing stamping die to solve the problem that the flash of a circular ring piece machined by a ring rolling machine is long in length.

In order to achieve the purpose, the utility model adopts the following technical scheme: prevent overlap stamping die, including lower mould subassembly and last mould subassembly, lower mould subassembly includes lower die body, and the top of lower die body is protruding upwards, go up the mould subassembly and include the die body, go up the bottom of die body and protruding downwards, it is just relative with lower die body to go up the die body.

The principle and the advantages of the scheme are as follows: in practical application, the bottom of the upper die body protrudes downwards to form a taper, and the top of the lower die body protrudes upwards to form a taper, so that the upper surface of a blank obtained by stamping the upper die body and the lower die body is recessed downwards, and the lower surface of the blank is recessed upwards.

Preferably, as an improvement, the lower die assembly further comprises a lower die base and a mounting base, the mounting base is detachably mounted on the lower die base, and the lower die body is detachably mounted on the mounting base.

In this scheme, lower die body demountable installation is on the mount pad, and the die body is down changed to the convenience. Moreover, the mounting seat is detachably mounted on the lower die base, so that the mounting seat can be taken down from the lower die base, the mounting seat is convenient to process, and the lower die body is detachably mounted on the mounting seat.

Preferably, as an improvement, the mounting seat is provided with a plurality of threaded through holes, the lower die holder is provided with a plurality of threaded blind holes corresponding to the threaded through holes, and the threaded through holes and the threaded blind holes are in threaded connection with screws.

In this scheme, utilize the threaded connection of screw and screw thread through-hole, screw thread blind hole, realize that the mount pad can dismantle to be connected on the die holder.

Preferably, as an improvement, the bottom of the lower die body is provided with a threaded pipe, the mounting seat is provided with a threaded hole, and the threaded pipe is in threaded connection with the threaded hole.

In this scheme, utilize the screwed pipe and the threaded connection of screw hole, realize down mould body demountable connection on the mount pad.

Preferably, as an improvement, a lower vertical hole which is vertically arranged is arranged at the central part of the lower die body, and the lower vertical hole is concentric with the threaded pipe; the center part of the upper die body is provided with an upper vertical hole which is vertically arranged, and the upper vertical hole is just opposite to the lower vertical hole.

In this scheme, vertical hole and lower vertical hole are gone up in the setting to make the weight reduction of last die body and lower die body, and reduce the manufacturing material of last die body and lower die body.

Preferably, as an improvement, the die holder fixedly connected with guide post, the cover is equipped with reset spring on the guide post, the top of die body is equipped with the upper die base, and the both ends of upper die base are equipped with the guiding hole that supplies the guide post to run through, and reset spring's bottom offsets with the die holder, and reset spring's top offsets with the upper die base.

In this scheme, the guiding post runs through the guiding hole of upper die base to the restriction upper die base only can reciprocate along the guiding post, avoids upper die body and lower die body dislocation relative.

Preferably, as an improvement, a limiting member is detachably connected to the top end of the guide post.

In this scheme, the size of locating part is greater than the guiding hole, therefore the locating part can't pass through the guiding hole to avoid the in-process of upper die base rebound to break away from the guide post.

Preferably, as an improvement, the limiting member is a disk, and the disk is screwed to the top end of the guide post.

In this scheme, disc threaded connection is on the top of guide post, consequently, the disc can be followed the guide post and taken off to the workman of being convenient for takes off the upper die base, and then more changes upper die base and last die body.

Drawings

FIG. 1 is a schematic structural diagram of an anti-flash stamping die according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the lower mold body and the lower mold base in FIG. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the die comprises a lower die assembly 100, a lower die body 110, a threaded pipe 111, a lower vertical hole 112, a mounting seat 120, a threaded hole 121, a lower die seat 130, an upper die assembly 200, an upper die body 210, an upper vertical hole 211, an upper die seat 220, a guide hole 221, a screw 300, a guide column 400, a return spring 500 and a limiting member 600.

Examples

This embodiment is substantially as shown in fig. 1: anti-flash stamping die, including lower mould subassembly 100 and last mould subassembly 200, lower mould subassembly 100 includes die body 110, mount pad 120 and die holder 130 down, and die holder 130 passes through screw fixed mounting on the punching machine, and mount pad 120 is dismantled and is connected on die holder 130, and die body 110 is dismantled and is connected on mount pad 120 down. Specifically, the mounting base 120 is provided with a plurality of threaded through holes, in this embodiment, the number of the threaded through holes is four, the four threaded through holes are uniformly distributed along the circumference of the mounting base 120, the lower die base 130 is provided with four threaded blind holes corresponding to the threaded through holes, and the threaded through holes and the threaded blind holes are jointly in threaded connection with screws 300, so that the mounting base 120 is detachably mounted on the lower die base 130; referring to fig. 2, a threaded pipe 111 is integrally formed at the bottom of the lower mold body 110, a threaded hole 121 is formed in the mounting seat 120, and the threaded pipe 111 is in threaded connection with the threaded hole 121, so that the lower mold body 110 is detachably mounted on the mounting seat 120.

The upper mold assembly 200 includes an upper mold body 210 and an upper mold base 220, and the upper mold body 210 is welded to a bottom surface of the upper mold base 220. The bottom of the upper mold body 210 protrudes downward, the top of the lower mold body 110 protrudes upward, and the upper mold body 210 is opposite to the lower mold body 110. The center of the upper mold body 210 is provided with an upper vertical hole 211 which is vertically arranged, the center of the lower mold body 110 is provided with a lower vertical hole 112 which is vertically arranged, the lower vertical hole 112 is concentric with the threaded pipe 111, and the upper vertical hole 211 is just opposite to the lower vertical hole 112.

The welding of lower bolster 130 has two guide posts 400, and two guide posts 400 are located the left side and the right side of mount pad 120 respectively, and the cover is equipped with reset spring 500 on the guide post 400, and the both ends of going up die holder 220 are equipped with the guiding hole 221 that hole guide post 400 runs through, and the bottom that resets offsets with lower bolster 130, and reset spring 500's top offsets with going up die holder 220. The top end of the guide post 400 is detachably connected with a limiting part 600, in this embodiment, the limiting part 600 is a circular disc, the circular disc is in threaded connection with the top end of the guide post 400, and the diameter of the circular disc is greater than the aperture of the guide hole 221.

The specific implementation process is as follows: a raw material to be punched is placed on the lower die body 110, and then, a punching head of a punching apparatus acts on the upper die holder 220, and the upper die holder 220 moves down with the upper die body 210, thereby punching the raw material, so that the raw material is molded. In the process, because the bottom of the upper die body 210 protrudes downwards to form a taper, and the top of the lower die body 110 protrudes upwards to form a taper, the upper surface of a blank obtained by stamping the upper die body 210 and the lower die body 110 is recessed downwards, and the lower surface of the blank is recessed upwards, so that in the ring rolling machine machining process, after the blank is subjected to extrusion force, the material in the middle of the blank firstly supplements the defect of the recessed part of the blank, thereby reducing the material for forming flash, further reducing the length of the flash, reducing the flash removing workload and improving the production efficiency of the synchronizer.

After the upper die body 210 and the lower die body 110 stamp the raw material into a blank with concave upper and lower surfaces, the stamping head moves upwards to reset, in the process, the upper die base 220 moves upwards under the action of the reset spring 500, so that the upper die body 210 is driven to move upwards to reset, the distance between the upper die body 210 and the lower die body 110 is increased, and a worker can take off the formed blank conveniently. In the above process, the upper mold base 220 and the upper mold body 210 can move only up and down along the guide posts 400 by the guide posts 400, thereby ensuring that the upper mold body 210 and the lower mold body 110 always face each other.

In addition, the limiting member 600 on the guiding post 400 cannot pass through the guiding hole 221 of the upper mold base 220, so that the upper mold base 220 cannot be separated from the guiding post 400, and the upper mold base 220 is prevented from being separated from the guiding post 400 under the elastic force of the return spring 500.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Prevent overlap stamping die, including lower mould subassembly and last mould subassembly, its characterized in that: the lower die assembly comprises a lower die body, the top of the lower die body protrudes upwards, the upper die assembly comprises an upper die body, the bottom of the upper die body protrudes downwards, and the upper die body is right opposite to the lower die body.

2. The flash-preventing stamping die according to claim 1, wherein: the lower die assembly further comprises a lower die base and a mounting base, the mounting base is detachably mounted on the lower die base, and the lower die body is detachably mounted on the mounting base.

3. The flash-preventing stamping die according to claim 2, wherein: the mounting seat is provided with a plurality of threaded through holes, the lower die seat is provided with a plurality of threaded blind holes corresponding to the threaded through holes, and the threaded through holes and the threaded blind holes are in threaded connection with screws.

4. The flash-preventing stamping die according to claim 3, wherein: the bottom of the lower die body is provided with a threaded pipe, the mounting seat is provided with a threaded hole, and the threaded pipe is in threaded connection with the threaded hole.

5. The flash-preventing stamping die according to any one of claims 1 to 4, wherein: the center part of the lower die body is provided with a vertically arranged lower vertical hole which is concentric with the threaded pipe; the center part of the upper die body is provided with an upper vertical hole which is vertically arranged, and the upper vertical hole is just opposite to the lower vertical hole.

6. The flash-preventing stamping die as recited in claim 5, wherein: the die holder fixedly connected with guide post is equipped with reset spring on the cover of guide post, the top of die holder is equipped with the upper die base, and the both ends of upper die base are equipped with the guiding hole that supplies the guide post to run through, and reset spring's bottom offsets with the die holder, and reset spring's top and upper die base offset.

7. The flash-preventing stamping die as recited in claim 6, wherein: the top end of the guide post is detachably connected with a limiting part.

8. The flash-preventing stamping die as recited in claim 7, wherein: the locating part is a disc, and the disc is in threaded connection with the top end of the guide column.