Bolt cold heading die

Abstract

The utility model discloses a bolt cold heading die, which relates to the technical field of cold heading forming dies, and comprises a working table, a lower die block is fixedly connected above the working table, a die cavity is arranged on the lower die block, a demoulding assembly is arranged on the inner bottom wall of the die cavity, a cylinder is fixedly connected below a portal frame, and the lower portion of the portal frame is provided with an air cylinder. An upper die block is fixedly connected to the lower portion of the air cylinder, a punching die block is fixedly connected to the lower portion of the upper die block, sliding grooves are formed in the two sides of the portal frame, guide rods are fixedly connected to the inner walls of the two sliding grooves, and the outer side walls of the two guide rods are sleeved with guide blocks. And the opposite surfaces of the two guide blocks are fixedly connected with a connecting rod. Through the arrangement of the lower die block, the upper die block and the demolding assembly, a formed bolt can be demolded, the bolt is prevented from being damaged in the demolding process, meanwhile, residues adhering to the inner wall of the die cavity are cleaned, and the situation that the subsequent product quality of the bolt is affected by chippings is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading forming dies, in particular to a bolt cold heading die. Background Art

[0002] In industrial production, especially in the machinery and manufacturing industries, the production of bolts usually requires multiple steps, including cutting, heating, forging, cold heading, etc. Among them, cold heading is an important plastic forming process, which uses a mold to press the metal material to change its shape, thereby obtaining the desired part shape. However, in the process of manufacturing bolts, it is not easy to demold the formed bolts with traditional bolt cold heading dies. Forcible removal can easily damage the bolts, seriously affecting the yield of the bolts. Secondly, after demolding, the inner wall of the mold is prone to adhere to residues, which is inconvenient to handle, and it is easy to have an adverse effect on the manufacture of secondary bolts, and it is easy to produce unqualified defective products. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a bolt cold heading die, which can demold the formed bolts by setting a lower module, an upper module and a demolding assembly to avoid damage to the bolts during the demolding process. At the same time, the residues adhered to the inner wall of the mold cavity can be cleaned to prevent the debris from affecting the subsequent product quality of the bolts.

[0004] The utility model also provides a bolt cold heading die as described above, comprising: a workbench, a lower module fixedly connected to the top of the workbench, a mold cavity arranged on the top of the lower module, a demoulding assembly arranged on the inner bottom wall of the mold cavity, a gantry fixedly connected to the top of the workbench, a cylinder fixedly connected to the bottom of the gantry, an upper module fixedly connected to the bottom of the cylinder, a punching module fixedly connected to the bottom of the upper module, slide grooves arranged on both sides of the gantry, guide rods fixedly connected to the inner walls of the two slide grooves, guide blocks sleeved to the outer walls of the two guide rods, and connecting rods fixedly connected to the opposite sides of the two guide blocks. By providing the lower module, the upper module and the demoulding assembly, the formed bolts can be demoulded to avoid damage to the bolts during the demoulding process, and the residues adhering to the inner wall of the mold cavity can be cleaned to avoid debris affecting the subsequent product quality of the bolts.

[0005] According to the bolt cold heading mold, the demolding assembly includes a first cavity and a second cavity arranged on the inner bottom wall of the mold cavity, an air inlet pipe and an air outlet pipe are respectively arranged on one side of the inner wall of the first cavity and the second cavity, the inner bottom walls of the first cavity and the second cavity are fixedly connected with electric push rods, and the output ends of the two electric push rods are fixedly connected with sealing blocks.

[0006] According to the bolt cold heading die, the two sealing blocks are both adapted to the inner walls of the first cavity and the second cavity, and the two sealing blocks are both slidably connected to the inner walls of the first cavity and the second cavity.

[0007] According to the bolt cold heading die, the air inlet pipe and the air outlet pipe are vertically arranged on one side of the inner wall of the first cavity and the second cavity, and one end of the air inlet pipe and the air outlet pipe away from the first cavity and the second cavity passes through one side of the lower module.

[0008] According to the bolt cold heading die, one end of the two connecting rods away from the guide block is fixedly connected to the two sides of the upper module.

[0009] According to the bolt cold heading die, the punching module is slidably connected to the inner wall of the die cavity, and the die cavity is a bolt die cavity.

[0010] According to the bolt cold heading die, four support columns are fixedly connected below the workbench, and the four support columns are symmetrically arranged.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is a three-dimensional view of a bolt cold heading die of the utility model from a front perspective;

[0014] Figure 2 This is a three-dimensional structural diagram of a bolt cold heading die from a side perspective of the utility model;

[0015] Figure 3 This is a front view structural diagram of a bolt cold heading die of the utility model;

[0016] Figure 4 for Figure 3 A magnified view of the structure in the middle.

[0017] Legend:

[0018] 1. Workbench; 2. Lower module; 3. Mold cavity; 4. Demolding assembly; 5. Gantry; 6. Cylinder; 7. Upper module; 8. Punch module; 9. Slide; 10. Guide rod; 11. Guide block; 12. Connecting rod; 401. First cavity; 402. Second cavity; 403. Air inlet pipe; 404. Air outlet pipe; 405. Electric push rod; 406. Sealing block; 101. Support column. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4 The utility model embodiment is a bolt cold heading mold, which includes: a workbench 1, four supporting columns 101 are fixedly connected to the bottom of the workbench 1, and the four supporting columns 101 are symmetrically arranged, a lower module 2 is fixedly connected to the top of the workbench 1, a mold cavity 3 is arranged on the top of the lower module 2, and a demoulding component 4 is arranged on the inner bottom wall of the mold cavity 3, a gantry 5 is fixedly connected to the top of the workbench 1, a cylinder 6 is fixedly connected to the bottom of the gantry 5, an upper module 7 is fixedly connected to the bottom of the cylinder 6, a punching module 8 is fixedly connected to the bottom of the upper module 7, the punching module 8 is slidably connected to the inner wall of the mold cavity 3, and the mold cavity 3 is a bolt mold cavity, slide grooves 9 are arranged on both sides of the gantry 5, the inner walls of the two slide grooves 9 are fixedly connected to guide rods 10, the outer side walls of the two guide rods 10 are sleeved with guide blocks 11, the opposite sides of the two guide blocks 11 are fixedly connected to connecting rods 12, and the ends of the two connecting rods 12 away from the guide blocks 11 are fixedly connected to the two sides of the upper module 7.

[0021] The demolding assembly 4 includes a first cavity 401 and a second cavity 402 arranged on the inner bottom wall of the mold cavity 3, and an air inlet pipe 403 and an air outlet pipe 404 are respectively arranged on one side of the inner wall of the first cavity 401 and the second cavity 402, and the air inlet pipe 403 and the air outlet pipe 404 are vertically arranged on one side of the inner wall of the first cavity 401 and the second cavity 402, and the ends of the air inlet pipe 403 and the air outlet pipe 404 away from the first cavity 401 and the second cavity 402 pass through one side of the lower module 2, and the inner bottom walls of the first cavity 401 and the second cavity 402 are fixedly connected with electric push rods 405, and the output ends of the two electric push rods 405 are fixedly connected with sealing blocks 406, and the two sealing blocks 406 are both adapted to the inner walls of the first cavity 401 and the second cavity 402, and the two sealing blocks 406 are both slidably connected to the inner walls of the first cavity 401 and the second cavity 402. By setting up the lower module 2, the upper module 7 and the demoulding assembly 4, the formed bolts can be demoulded to avoid damage to the bolts during the demoulding process. At the same time, the residues adhering to the inner wall of the mold cavity 3 can be cleaned to prevent the debris from affecting the subsequent product quality of the bolts.

[0022] Working principle: When in use, place the metal material in the die cavity 3, start the cylinder 6 to drive the upper die block 7 to move downward, and compress the metal in the die cavity 3 through the punch die block 8. During the descent of the upper die block 7, the connecting rods 12 on both sides are connected to the guide block 11, which ensures the stability and accuracy of the upper die block 7 and the punch die block 8 during movement. After the bolts are formed, start the cylinder 6 to drive the upper die block 7 to move upward, and then connect the air pump to one side of the air inlet pipe 403, inject the gas into the first cavity 401 through the air inlet pipe 403, and start the electric The movable push rod 405 outputs the sealing block 406, and squeezes the air pressure into the mold cavity 3, so that the bolt is demolded by the air pressure. When cleaning the debris on the inner wall of the mold cavity 3, the cylinder 6 is started to close the upper module 7 and the lower module 2, and the electric push rod 405 is started to output the sealing block 406 to descend to the bottom of one side of the inlet pipe 403 and the outlet pipe 404. The gas is then injected into the first cavity 401 through the inlet pipe 403 through the air pump, and circulated into the mold cavity 3. At this time, flowing air is formed in the mold cavity 3, which is convenient for discharging the debris in the mold cavity 3 through the outlet pipe 404.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A bolt cold heading die, comprising: A workbench (1) is characterized in that a lower module (2) is fixedly connected to the top of the workbench (1), a mold cavity (3) is arranged on the top of the lower module (2), a demoulding assembly (4) is arranged on the inner bottom wall of the mold cavity (3), a gantry (5) is fixedly connected to the top of the workbench (1), a cylinder (6) is fixedly connected to the bottom of the gantry (5), an upper module (7) is fixedly connected to the bottom of the cylinder (6), a punching module (8) is fixedly connected to the bottom of the upper module (7), slide grooves (9) are arranged on both sides of the gantry (5), the inner walls of the two slide grooves (9) are fixedly connected to guide rods (10), the outer walls of the two guide rods (10) are sleeved with guide blocks (11), and the opposite sides of the two guide blocks (11) are fixedly connected to connecting rods (12).

2. A bolt cold heading die according to claim 1, characterized in that: The demoulding assembly (4) comprises a first cavity (401) and a second cavity (402) arranged on the inner bottom wall of the mold cavity (3); an air inlet pipe (403) and an air outlet pipe (404) are respectively arranged on one side of the inner wall of the first cavity (401) and the second cavity (402); the inner bottom walls of the first cavity (401) and the second cavity (402) are both fixedly connected to electric push rods (405); and the output ends of the two electric push rods (405) are both fixedly connected to sealing blocks (406).

3. A bolt cold heading die according to claim 2, characterized in that: The two sealing blocks (406) are both adapted to the inner walls of the first cavity (401) and the second cavity (402), and the two sealing blocks (406) are both slidably connected to the inner walls of the first cavity (401) and the second cavity (402).

4. A bolt cold heading die according to claim 2, characterized in that: The air inlet pipe (403) and the air outlet pipe (404) are vertically arranged on one side of the inner wall of the first cavity (401) and the second cavity (402), and one end of the air inlet pipe (403) and the air outlet pipe (404) away from the first cavity (401) and the second cavity (402) passes through one side of the lower module (2).

5. A bolt cold heading die according to claim 1, characterized in that: One end of the two connecting rods (12) away from the guide block (11) is fixedly connected to two sides of the upper module (7).

6. A bolt cold heading die according to claim 1, characterized in that: The punching module (8) is slidably connected to the inner wall of the die cavity (3), and the die cavity (3) is a bolt die cavity.

7. A bolt cold heading die according to claim 1, characterized in that: Four support columns (101) are fixedly connected below the workbench (1), and the four support columns (101) are symmetrically arranged.

Images