CN215941225U

CN215941225U - Bolt head extrusion die head

Info

Publication number: CN215941225U
Application number: CN202121957679.5U
Authority: CN
Inventors: 王星月
Original assignee: Jiashan Xinghang Precision Mould Technology Co ltd
Current assignee: Jiashan Xinghang Precision Mould Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-04
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a bolt head extrusion die head which comprises a plurality of die core blocks and two semi-cylindrical installation blocks which can be mutually connected, wherein a semicircular installation groove is formed in each installation block, a first annular groove is formed in the wall of each installation groove, a plurality of die core blocks surround to form a die cavity, the die core blocks are positioned in the installation grooves, a second annular groove corresponding to the first annular groove is formed in the outer side surface of each die core block, a fixing ring is arranged between the first annular groove and the second annular groove, the first annular groove, the second annular groove and the fixing ring are the same in width, the whole die head is not required to be scrapped, the replacement cost of the die head is reduced, the connection and the detachment between each die core block and the installation blocks are more convenient, and the replacement efficiency is improved.

Description

Bolt head extrusion die head

Technical Field

The utility model belongs to the field of fastener dies, and particularly relates to a bolt head extrusion die head.

Background

The existing bolt forming process comprises a forming process for punching a bolt blank by using an upper die and a lower die, wherein the head of the bolt is punched by a die head on the upper die, the die head comprises an installation block, the installation block is provided with a mounting groove, a die core is arranged in the mounting groove, the middle of the die core is a die cavity, the die cavity is formed by a plurality of die core blocks, namely the die cavity is formed by enclosing a plurality of die core blocks, the die core blocks are tightly attached to each other, the outer side surface of the die core block is also tightly attached to the inner wall of the mounting groove, when the die head is produced, the die core blocks are firstly combined to form the die core, then the die core is pressed into the mounting groove, when the die head is damaged and cannot be used for a long time, the die core blocks are inconvenient to separate and disassemble from the installation block, the replacement efficiency is low, and enterprises often scrap the damaged die head directly for saving the replacement time, this also increases the cost of die replacement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the bolt head extrusion die head, which reduces the replacement cost of the die head and improves the replacement efficiency.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a bolt head extrusion die head, includes a plurality of mould benevolence pieces and two semi-cylindrical's that can interconnect installation piece, be provided with semicircular mounting groove on the installation piece, be provided with first annular on the cell wall of mounting groove, it is a plurality of mould benevolence piece encloses to close and forms the die cavity, mould benevolence piece is located the mounting groove, be provided with the second annular that corresponds first annular on the lateral surface of mould benevolence piece, be provided with solid fixed ring between first annular and the second annular, first annular, second annular are the same with solid fixed ring's width.

Further, the fixing ring is provided with a mounting opening.

Furthermore, one of the installation blocks is provided with a first fixing hole, the first fixing hole is provided with a nut fixing groove, the other installation block is provided with a second fixing hole corresponding to the first fixing hole, the second fixing hole is provided with a bolt mounting groove, a fixing bolt is arranged between the first fixing hole and the second fixing hole, the nut fixing groove is internally provided with a fixing nut, the head of the fixing bolt is positioned in the bolt mounting groove, and the rod part of the fixing bolt penetrates through the second fixing hole and the first fixing hole and is in threaded connection with the fixing nut.

Further, a clamping gap is arranged between the two mounting blocks.

Furthermore, a positioning protrusion is arranged on the plane of one of the mounting blocks, and a positioning groove corresponding to the positioning protrusion is arranged on the plane of the other mounting block.

Further, a through hole is formed between the two mounting blocks.

Compared with the prior art, the utility model has the beneficial effects that: when assembling the die head, carry out preliminary fixed formation mould benevolence through solid fixed ring with a plurality of mould benevolence pieces earlier, then place mould benevolence in the mounting groove of one of them installation piece, fold two installation pieces each other and connect fixedly through fixing bolt again, thereby fix mould benevolence on the installation piece, when mould benevolence piece damages, can dismantle the separation with two installation pieces, and take out the mould benevolence in the mounting groove, take off solid fixed ring, assemble the die head again behind the mould benevolence piece of renewal, and need not to scrap whole die head is whole, reduce the replacement cost of die head, and the mould benevolence piece is also more convenient with dismantling with the connection between the installation piece, and the efficiency of change is improved.

Drawings

FIG. 1 is a schematic perspective view of a die of the present invention;

FIG. 2 is a front cross-sectional view of a die;

FIG. 3 is an exploded schematic view of the die;

FIG. 4 is a schematic structural view of two mounting blocks;

FIG. 5 is a schematic view of the connection between the mold insert and the retaining ring;

fig. 6 is a schematic structural view of the fixing ring.

Reference numerals: 1. a mold core block; 2. mounting blocks; 3. mounting grooves; 4. a first ring groove; 5. a mold cavity; 6. a second ring groove; 7. a fixing ring; 8. an installation opening; 9. a first fixing hole; 10. a nut fixing groove; 11. a second fixing hole; 12. a bolt mounting groove; 13. fixing the bolt; 14. fixing a nut; 15. a clamping gap; 16. positioning the projection; 17. and a through hole.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

The present invention is further explained with reference to fig. 1 to 6.

The utility model provides a bolt head extrusion die head, includes a plurality of mould benevolence pieces 1 and two semi-cylindrical's of interconnect installation piece 2, be provided with semicircular mounting groove 3 on the installation piece 2, be provided with first annular 4 on the cell wall of mounting groove 3, it is a plurality of mould benevolence piece 1 encloses to close and forms die cavity 5, mould benevolence piece 1 is located mounting groove 3, be provided with the second annular 6 that corresponds first annular 4 on mould benevolence piece 1's the lateral surface, be provided with solid fixed ring 7 between first annular 4 and the second annular 6, first annular 4, second annular 6 are the same with solid fixed ring 7's width.

Preferably, the outer circular surface of the fixing ring 7 is abutted against the annular bottom surface of the first ring groove 4, and the inner circular surface of the fixing ring 7 is abutted against the annular bottom surface of the second ring groove 6.

As shown in fig. 1 to 6, when assembling the die head, firstly, a plurality of die core blocks 1 are combined to form an integral die core, then, a fixing ring 7 is sleeved on a second annular groove 6 of the die core block 1, so that the die core blocks 1 are relatively fixed, then, the die core is placed in a mounting groove 3 on one mounting block 2, the fixing ring 7 on the die core is matched with a first annular groove 4 in the mounting groove 3, finally, the two mounting blocks 2 are connected and fixed together, namely, the die core is fixed on the mounting block 2 through the two semicircular mounting grooves 3 and the fixing ring 7, thereby completing the assembly of the die head, and a die cavity 5 on the die core can punch a bolt blank.

When mould benevolence piece 1 damaged, will two installation pieces 2 separate again and take out mould benevolence from mounting groove 3 in, will fix the solid ring 7 again and take off from mould benevolence piece 1, change the mould benevolence piece 1 that damages, and need not to scrap whole die head, reduce the replacement cost of die head, and mould benevolence piece 1 and installation between 2 also more convenient with the dismantlement, improve change efficiency.

As shown in fig. 5 and 6, in the preferred embodiment, the fixing ring 7 is provided with the mounting opening 8, so that the fixing block has a certain expansion capability, the fixing ring 7 is conveniently sleeved on the combined mold core, and the mold core blocks 1 can be preliminarily attached to each other after being sleeved on the mold core, thereby improving the assembly efficiency of the die head.

As shown in fig. 3 and 4, in a preferred embodiment, one of the mounting blocks 2 is provided with a first fixing hole 9, the first fixing hole 9 is provided with a nut fixing groove 10, the other mounting block 2 is provided with a second fixing hole 11 corresponding to the first fixing hole 9, the second fixing hole 11 is provided with a bolt mounting groove 123, a fixing bolt 13 is disposed between the first fixing hole 9 and the second fixing hole 11, a fixing nut 14 is disposed in the nut fixing groove 10, a head of the fixing bolt 13 is disposed in the bolt mounting groove 123, a rod of the fixing bolt 13 passes through the second fixing hole 11 and the first fixing hole 9 and is in threaded connection with the fixing nut 14, when the two mounting blocks 2 are combined to fix the mold core in the mounting groove 3, the first fixing hole 9 on one of the mounting blocks 2 corresponds to the second fixing hole 11 on the other mounting block 2, then place fixation nut 14 in nut mounting groove 3, pass first fixed orifices 9 and second fixed orifices 11 back and fixation nut 14 threaded connection with fixing bolt 13 from bolt mounting groove 123 again, rotatory fixing bolt 13 is inconsistent with the bottom surface of bolt mounting groove 123 until fixing bolt 13's head, can be with two installation piece 2 mutual fixed connection, connect convenient and fast and convenient to detach.

As shown in fig. 1, a clamping gap 15 is preferably formed between two of the mounting blocks 2, and the clamping gap 15 between the two mounting blocks 2 can be reduced when the fixing bolt 13 is screwed, so that the mold core can be better fixed in the mounting groove 3, and the mold core is prevented from loosening when the die head is used.

As shown in fig. 4, in the preferred embodiment, a positioning protrusion 16 is disposed on a plane of one of the mounting blocks 2, and a positioning groove (not shown in the drawings) corresponding to the positioning protrusion 16 is disposed on a plane of the other mounting block 2, that is, the first fixing hole 9 and the second fixing hole 11 on the two mounting blocks 2 can be quickly positioned by the cooperation of the positioning protrusion 16 and the positioning groove, so as to improve the assembly efficiency of the die head.

As shown in fig. 4, a through hole 17 is formed between two preferred mounting blocks 2 of this embodiment, and when the bolt blank is extruded by using a die head, heat generated by deformation of the bolt blank can be dissipated through the through hole 17, thereby improving production efficiency.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The bolt head extrusion die head is characterized in that: but including a plurality of mould benevolence pieces and two interconnect's semicircle columnar installation piece, be provided with semicircular mounting groove on the installation piece, be provided with first annular on the cell wall of mounting groove, it is a plurality of mould benevolence piece encloses to close and forms the die cavity, mould benevolence piece is located the mounting groove, be provided with the second annular that corresponds first annular on the lateral surface of mould benevolence piece, be provided with solid fixed ring between first annular and the second annular, first annular, second annular are the same with solid fixed ring's width.

2. The bolt head extrusion die according to claim 1, wherein: the fixing ring is provided with an installation opening.

3. The bolt head extrusion die according to claim 2, wherein: one of them be provided with first fixed orifices on the installation piece, be provided with the nut fixed slot on the first fixed orifices, another be provided with the second fixed orifices that corresponds first fixed orifices on the installation piece, be provided with the bolt mounting groove on the second fixed orifices, be provided with fixing bolt between first fixed orifices and the second fixed orifices, be provided with fixation nut in the nut fixed slot, fixing bolt's head is located the bolt mounting groove, fixing bolt's pole portion pass second fixed orifices and first fixed orifices and with fixation nut threaded connection.

4. The bolt head extrusion die according to claim 3, wherein: and a clamping gap is arranged between the two mounting blocks.

5. The bolt head extrusion die according to claim 4, wherein: the plane of one of the mounting blocks is provided with a positioning bulge, and the plane of the other mounting block is provided with a positioning groove corresponding to the positioning bulge.

6. The bolt head extrusion die according to claim 5, wherein: a through hole is arranged between the two mounting blocks.