CN210359107U

CN210359107U - Cold-heading device of bits bolt is scraped to hexagon head

Info

Publication number: CN210359107U
Application number: CN201920776267.8U
Authority: CN
Inventors: 蒋杨英; 王政; 舒臻伟; 王晓卫
Original assignee: ZHOUSHAN 7412 FACTORY
Current assignee: ZHOUSHAN 7412 FACTORY
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-04-21
Anticipated expiration: 2029-05-27

Abstract

The utility model provides a cold-heading device of bits bolt is scraped to hexagon head, include, the master model I of first process, I outside of master model is die sleeve I, I left side central axis of die sleeve installs die I, I central axis of die processes die cavity I, master model II is the second process, II outsides of master model are die sleeve II, II left side central axis of die sleeve installs die II, II central axis of die processes die cavity II, die cavity II is reducing structure, II reducing department inclinations of die cavity become 12 with the central axis, II right side top processing right angle form lugs of die cavity. During cold heading, the bar is sent into the main die I through the clamp, is extruded and shaped through the female die I, is sent into the main die II again, and is reshaped by utilizing the right-angle-shaped convex block in the female die II to process a groove. The device directly processes and forms the groove through a cold heading process without cutting, and improves the material utilization rate and the production efficiency.

Description

Cold-heading device of bits bolt is scraped to hexagon head

Technical Field

The utility model relates to a cold-heading device of bits bolt is scraped to hexagonal head.

Background

In the process of assembling automobile parts, bolts are usually used for connecting and fixing, and redundant scraps are often generated in the primary matching process, so that the screwing process is not smooth or the screwing process cannot be completed.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a cold-heading device of bits bolt is scraped to hexagonal head.

In order to achieve the purpose, the utility model provides a cold heading device of a hexagonal head scrap scraping bolt, a main die I, the main die I is a first working procedure, a die sleeve I is arranged outside the main die I, a female die I is axially arranged at the center of the left side of the die sleeve I, a movable groove I is axially processed at the right center of the die sleeve I, a die cavity I is axially processed at the center of the female die I, the die cavity I is of a reducing structure, the main die II is a second working procedure, the die sleeve II is arranged outside the main die II, a female die II is axially arranged at the center of the left side of the die sleeve II, a movable groove II is axially processed at the center of the right side of the die sleeve II, the center of the female die II is axially processed into a die cavity II, the die cavity II is of a reducing structure, the inclination of the reducing part of the die cavity II is 12 degrees to the central axis, and a right-angle-shaped convex block is processed at the top of the right side of the die cavity II, and the end part of the left side of the right-angle-shaped convex block is processed into an arc shape and extends into the diameter-changing part of the die cavity II.

As a further improvement, the positioning groove I is processed at the top of the die sleeve I.

As a further improvement, the positioning groove II is processed at the top of the die sleeve II.

As a further improvement, the diameter of the end face of the shaft of the die cavity II is larger than that of the die cavity I.

The utility model has the advantages that:

the device is through the cold-heading technology of no cutting, and the bar is through the moulding direct processing shaping recess of extrusion, has improved material utilization and production efficiency.

Drawings

FIG. 1 is a side view of a master mold I of a part 1;

FIG. 2 is a sectional view taken along line A of FIG. 1;

FIG. 3 is a side view of master mold II of part 2;

FIG. 4 is a sectional view taken along line B of FIG. 2;

fig. 5 is a schematic diagram of a process of the cold heading device for the hexagon head scrap scraping bolt of the present invention;

FIG. 6 is a schematic diagram of a second process of the cold heading device for a hexagon head scrap scraping bolt of the present invention;

fig. 7 is a part view of the bolt of product 4.

In the figure: 1. a main mold I; 11. a die sleeve I; 111. positioning a groove I; 112. a movable groove I; 12. a female die I; 121. a die cavity I; 2. a main mold II; 21. a die sleeve II; 211. positioning a groove II; 212. a movable groove II; 22. a female die II; 221. a die cavity II; 222. right-angled bumps; 3. a bar stock; 31. a groove; 4. and (4) bolts.

Detailed Description

As shown in fig. 2 and 4, the cold heading device for the hexagon head scrap scraping bolt according to the embodiment of the present invention comprises a main die i 1 and a main die ii 2, wherein the main die i 1 is a first process, a die sleeve i 11 is arranged outside the main die i 1, a positioning groove i 111 is formed in the top of the die sleeve i 11, a female die i 12 is axially installed in the left side of the die sleeve i 11, a movable groove i 112 is axially formed in the right side of the die sleeve i 11, a die cavity i 121 is axially formed in the center of the female die i 12, and the die cavity i 121 is of a reducing structure; the main die II 2 is a second process, the outside of the main die II 2 is a die sleeve II 21, a positioning groove II 211 is machined in the top of the die sleeve II 21, a female die II 22 is axially installed in the left side of the die sleeve II 21, a movable groove II 212 is axially machined in the right side of the die sleeve II 21, a die cavity II 221 is axially machined in the center of the female die II 22, the die cavity II 221 is of a reducing structure, the inclination of the reducing position of the die cavity II 221 is 12 degrees with the central axis, a right-angle-shaped bump 222 is machined in the top of the right side of the die cavity II 221, the end portion of the left side of the right-angle-shaped bump 222 is machined into an arc-shaped reducing position.

When in specific use, the utility model is described with the attached drawings for the convenience of understanding;

during operation, the bar is sent into first process fundamental mode I at first by feeding mechanism, bar free end moves to the right side from I left sides in die cavity, the reducing structure of die cavity I plays a guide effect, make moulding of bar become a progressive process, the inner structure of bar is more stable, the bar passes activity groove I after I processing in die cavity and leaves fundamental mode I, then send into second process fundamental mode II, II top processing in die cavity have right angle form lug, right angle form lug tip processing becomes the arc form, the bar is at the in-process through die cavity II, its free end receives extrusion deformation, process out behind the recess of corresponding shape, then leave the second process through activity groove II again, the recess form of bolt afterbody is processed promptly and is accomplished, after other processes, finally obtain finished product hexagon head and scrape bits bolt.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cold-heading device of bits bolt is scraped to hexagonal head, includes, master model I (1) is first process, I (1) outside of master model is die sleeve I (11), die sleeve I (11) left side central axial installation die I (12), die sleeve I (11) right side central axial processing movable groove I (112), die I (12) central axial processing die cavity I (121), die cavity I (121) are diameter-changing structure, its characterized in that: still include, II (2) of master mode are the second process, II (2) outsides of master mode are die sleeve II (21), die sleeve II (21) left side central axis installation die II (22), die sleeve II (21) right side central axis processes movable groove II (212), II (22) central axis processes die cavity II (221) of die, II (221) of die cavity are reducing structure, II (221) reducing department inclination of die cavity become 12 with the central axis, II (221) right side top processing right angle form lug (222) of die cavity, right angle form lug (222) left side tip is processed into the arc form and is extended into the reducing department of die cavity II (221).

2. The cold heading device for the hexagonal-head shavings bolt according to claim 1, wherein: and a positioning groove I (111) is processed at the top of the die sleeve I (11).

3. The cold heading device for the hexagonal-head shavings bolt according to claim 1, wherein: and a positioning groove II (211) is processed at the top of the die sleeve II (21).

4. The cold heading device for the hexagonal-head shavings bolt according to claim 1, wherein: the diameter of the shaft end face of the die cavity II (221) is larger than that of the die cavity I (121).