CN214601699U

CN214601699U - Cold-heading mould with easily-detachable mould core

Info

Publication number: CN214601699U
Application number: CN202022562226.4U
Authority: CN
Inventors: 郑胤; 康晓东; 陈锡颖
Original assignee: Zhejiang Huayuan Automobile Technology Co ltd
Current assignee: Zhejiang Huayuan Automobile Technology Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-11-05
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a cold-heading mould of easy dismouting of mold core, including cylindrical mold core and die sleeve, the mold core is pegged graft in the die sleeve, be equipped with the draw-in groove on the mold core lateral wall, install the fixture block on the draw-in groove, be equipped with the recess that matches with the fixture block on the die sleeve inner wall, the fixture block can block and be used for fixed mold core between die sleeve and mold core, the fixture block can remove and remove the fixed to the mold core in the recess. The utility model discloses a fixture block that can remove in the recess is used for fixed mold core, the dismouting of being convenient for and change mold core to the production of the different parts of quick adaptation.

Description

Cold-heading mould with easily-detachable mould core

Technical Field

The utility model relates to a cold-heading mould of easy dismouting of mold core.

Background

The cold heading process is an important process for producing fasteners, generally, a mold core of a cold heading mold is pressed in a mold sleeve, and the cold heading mold has the advantages of stable structure, difficulty in displacement of the mold core and difficulty in disassembly and assembly, is time-consuming and is not suitable for small-batch production or cross production of various parts, wherein the mold core needs to be frequently replaced.

Disclosure of Invention

The utility model aims to solve the technical problem that a cold-heading mould that can change the mold core by quick assembly disassembly is provided.

In order to realize above purpose, the utility model provides a cold-heading mould of easy dismouting of mold core, including cylindrical mold core and die sleeve, the mold core is pegged graft in the die sleeve, be equipped with the draw-in groove on the mold core lateral wall, install the fixture block on the draw-in groove, be equipped with the recess that matches with the fixture block on the die sleeve inner wall, the fixture block can block and be used for fixed mold core between die sleeve and mold core, the fixture block can remove and relieve the fixed to the mold core in the recess.

Furthermore, a screw hole is formed between the groove and the outer wall of the die sleeve, the die sleeve comprises a first bolt which penetrates through the screw hole and is connected with the clamping block, and the first bolt can control the clamping block to move outwards so as to release the fixation of the die core.

Furthermore, the first bolt is fixed with the pressing block, and the pressing block is movably connected with the clamping block.

The other scheme is that the die sleeve further comprises a second bolt and a sliding groove communicated with the groove, the second bolt is movably connected with the pressing block, and the second bolt can control the pressing block to move in the sliding groove along the axial direction of the die core or move vertically along the axial direction of the die core shaft so as to fix the clamping block or release the fixation of the clamping block.

The die sleeve can also be internally provided with a U-shaped pressing strip for fixing the clamping block, the U-shaped pressing strip is arranged in a placing groove in the die sleeve, one end of the U-shaped pressing strip penetrates through the groove, and the other end of the U-shaped pressing strip abuts against a limiting device arranged on the end face of the die sleeve.

Furthermore, the mold core is provided with a first end inserted into the mold sleeve, the first end is provided with a positioning side wall, the positioning side wall is a plane cut on the circumference of the mold core, and the inner wall of the mold sleeve is matched with the shape of the mold core.

The utility model has the advantages that:

the utility model discloses a bolt is connected with the fixture block, and the fixture block is to the cooperation with the draw-in groove phase-match of mold core, fixture block, fixes the mold core in the die sleeve, when needs dismouting, removes the fixture block through the bolt, and after the fixture block left the draw-in groove, the terminal surface that the die sleeve can be followed to the mold core withdraws from. The utility model discloses it is very convenient to dismantle, and when having solved with bolt fastening die sleeve and mold core, cold-heading technology mold core pressure is big with assaulting, the problem that bolt and screw thread warp easily.

Drawings

Fig. 1 is a schematic view of the mold core of the present invention;

fig. 2 is a cross-sectional view of embodiment 1 of the present invention;

fig. 3 is a cross-sectional view of embodiment 2 of the present invention;

fig. 4 is a sectional view of embodiment 3 of the present invention;

FIG. 5 is a schematic view of the positioning sidewall of the present invention;

fig. 6 is a schematic view of a U-shaped bead.

Description of reference numerals: 1. a mold core; 2. die sleeve; 3. a card slot; 4. a clamping block; 5. a groove; 6. a screw hole; 7. a first bolt; 8. briquetting; 9. a second bolt; 10. a first chute; 11. a second chute; 12. a U-shaped layering; 13. a placing groove; 14. a baffle plate; 15. positioning the side wall; 16. an arcuate connecting block; 17. and a stop block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 and 2, the utility model discloses a cold-heading mould of easy dismouting of mold core, including cylindrical mold core 1 and die sleeve 2, mold core 1 is pegged graft in die sleeve 2, is equipped with draw-in groove 3 on the 1 lateral wall of mold core, installs fixture block 4 on draw-in groove 3, is equipped with the recess 5 that matches with fixture block 4 on the die sleeve 2, and fixture block 4 can block and be used for fixed mold core 1 between die sleeve 2 and mold core 1, and fixture block 4 can remove and remove the fixed to mold core 1 in recess 5. The clamping groove 3 can be a polygonal groove, such as a triangle or a quadrangle, or other shapes in the prior art, the clamping block 4 has a shape matched with the clamping groove 3, the groove 5 can penetrate through the outer wall of the die sleeve 2, the groove 5 and the clamping block 4 are fixed and sealed after the die core 1 and the clamping block 4 are installed, for example, the groove 5 and the clamping block 4 are plugged with a block body with the same shape as the groove 5, and the die core 1 can be taken out and replaced after the block body is taken out during replacement.

The above-mentioned mold core 1 is complicated to change, the present invention provides a relatively simple and convenient way, as shown in fig. 2, in embodiment 1, a screw hole 6 is provided between the groove 5 and the outer wall of the mold sleeve 2, the mold sleeve 2 is provided with a first bolt 7 passing through the screw hole 6 and connected with the clamping block 4, the first bolt 7 can control the clamping block 4 to move outwards to release the fixation of the mold core 1, the first bolt 7 can be directly movably connected with the clamping block 4, such as riveting or hinging, an internal thread is provided in the screw hole 6, an external thread matched with the internal thread is provided on the first bolt 7, the pressing block 8 can be fastened or the pressing block 8 can be driven to move outwards by rotating the first bolt 7, because the first bolt 7 is movably connected with the clamping block 4, the clamping block 4 can not limit the rotation of the first bolt 7, because the end surface area of the bolt is small, the end surface of the first bolt 7 is contacted with the clamping block 4, under repeated impact, in this embodiment, the first bolt 7 is fixed to the pressing block 8, the pressing block 8 and the first bolt 7 need to rotate in the groove 5, preferably, the pressing block 8 is circular, the pressing block 8 is movably connected to the fixture block 4, the movable connection mode can be as shown in fig. 2, two ends of the i-shaped connecting block 16 are respectively placed into the fixture block 4 and the pressing block 8, and then the fixture block 17 is welded to the fixture block and the pressing block.

Referring to fig. 3, embodiment 2 of the present invention provides a better technical scheme for fastening the fixture block 4, the die sleeve 2 further includes a second bolt 9 and a first chute 10 for translation of the second bolt 9, the second bolt 9 is screwed with a pressing block 8, the pressing block 8 is disposed in a second chute 11 communicated with the groove 5, the second chute 11 is communicated with the first chute 10, the width of the second chute 11 is greater than the width of the first chute 10, the second bolt 9 can control the pressing block 8 to move axially along the mold core 1 in the first chute 10 so as to fix the fixture block 4 or release the fixture block 4, and a channel for the pressing block 8 to enter the die sleeve 2 is disposed above the first chute 10. The mode that the second bolt 9 controls the clamping block 4 to move is that the second bolt 9 is in threaded connection with the pressing block 8, the pressing block 8 can be driven to move in a translation mode through the translation of the second bolt 9, the pressing block 8 is moved above or away from the clamping block 4 through the translation, the width of the pressing block 8 is larger than that of the first sliding groove 10, and the pressing block 8 is controlled to press the clamping block 4 through controlling the depth of the second bolt 9 in the pressing block 8.

Referring to fig. 4 and 6, embodiment 3 of the present invention provides another technical scheme for compressing the fixture block 4, a U-shaped pressing strip 12 for fixing the fixture block 4 is provided in the die sleeve 2, the U-shaped pressing strip 12 is arranged in a groove 13 in the die sleeve 2, one end of the U-shaped pressing strip 12 passes through the groove 5, the other end of the U-shaped pressing strip offsets with a limiting device provided on the end surface of the die sleeve 2, the limiting device can be a baffle 14, and the baffle 14 is fixed with the end surface of the die sleeve 2 by bolts.

Referring to fig. 5, the end of the mold core 1 inserted into the mold sleeve 2 is a first end, the first end is provided with a positioning side wall, the positioning side wall is a cylindrical side wall of the mold core 1 and forms one or more integral or local planes by forging or one-step forming and the like, the insertion angle of the mold core 1 is limited, the insertion angle of the mold core 1 is ensured to enable the clamping groove 3 to be opposite to the clamping block 4, and the inner wall of the mold sleeve 2 is matched with the shape of the mold core 1.

In the above embodiment, the number of the clamping grooves 3, the clamping blocks 4 matched with the clamping grooves 3, the matched grooves 5 and the like can be several, and the fixed mold core 1 can obtain better effect from multiple directions.

In the above embodiment, the pressing block 8 and the clamping block 4 may be placed in the groove 5, another installation method may be installed in an installation hole reserved in the outer wall of the die sleeve 2, and after the pressing block and the clamping block are installed, the outer wall of the die sleeve 2 covers the installation hole in a fixing manner such as welding (the installation hole is not shown in the attached drawings).

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a cold-heading mould of easy dismouting of mold core, includes cylindrical mold core and die sleeve, the mold core is pegged graft in the die sleeve, its characterized in that: the die comprises a die sleeve and a die core, and is characterized in that a clamping groove is formed in the side wall of the die core, a clamping block is mounted on the clamping groove, a groove matched with the clamping block is formed in the inner wall of the die sleeve, the clamping block can be clamped between the die sleeve and the die core to fix the die core, and the clamping block can move in the groove and remove the fixation of the die core.

2. The cold-heading die with the die core easy to disassemble and assemble as claimed in claim 1, wherein:

and a screw hole is formed between the groove and the outer wall of the die sleeve, the die sleeve comprises a first bolt which penetrates through the screw hole and is connected with the clamping block, and the first bolt can control the clamping block to move outwards so as to release the fixation of the die core.

3. The cold-heading die with the die core easy to disassemble and assemble as claimed in claim 2, wherein: the first bolt is fixed with the pressing block, and the pressing block is movably connected with the clamping block.

4. The cold-heading die with the die core easy to disassemble and assemble as claimed in claim 2, wherein: the die sleeve further comprises a second bolt and a sliding groove communicated with the groove, the second bolt is movably connected with the pressing block, and the pressing block can be controlled by the second bolt to move axially along the die core or move axially perpendicular to the die core in the sliding groove so as to fix the clamping block or release the fixation of the clamping block.

5. The cold-heading die with the die core easy to disassemble and assemble as claimed in claim 2, wherein: the die sleeve is internally provided with a U-shaped pressing strip for fixing the clamping block, the U-shaped pressing strip is arranged in a mounting groove in the die sleeve, one end of the U-shaped pressing strip penetrates through the groove, and the other end of the U-shaped pressing strip abuts against a limiting device arranged on the end face of the die sleeve.

6. The cold-heading die with the easily-disassembled and assembled die core as claimed in any one of claims 1 to 5, wherein: the mold core is provided with a first end inserted into the mold sleeve, the first end is provided with a positioning side wall, and the inner wall of the mold sleeve is matched with the mold core in shape.