Warm upsetting forming equipment

Abstract

The utility model provides warm upsetting forming equipment. The warm upsetting forming equipment comprises a beam rod die, a beam rod pressing die and a beam rod pressing die, wherein the beam rod die is used for forming raw materials into beam rods for processing bolts; the pre-upsetting die is used for forming one end of the beam rod into a pre-upsetting part for processing a bolt head; the shaping mold is used for molding the pre-upset part into a bolt head blank; the shaping die is used for forming the bolt head blank into a finished bolt head blank; the final upsetting die is used for forming the bolt head finish blank into the bolt head; through continuous cooperation of multiple sets of dies, efficient and high-quality forming from raw materials to bolt heads is achieved, the production efficiency is improved, the product quality is improved, material loss is reduced, the service life of the dies is prolonged, follow-up machining is reduced, and the die is particularly suitable for batch production of high-strength bolts.

Description

Technical Field

[0001] This utility model relates to the field of metal material processing technology, and in particular to a warm upsetting forming equipment. Background Technology

[0002] In the fastener manufacturing industry, especially in sectors such as machinery, automotive, and aerospace, the demand for high-strength, high-quality bolts is increasing. Traditional cold heading and hot heading processes have significant shortcomings in manufacturing large-size, high-strength fasteners: cold heading requires high-quality materials and has limited equipment capabilities, while hot heading suffers from low efficiency, high pollution, and inconsistent quality. These limitations have spurred the development of warm heading technology. By forging metal materials at specific temperatures, warm heading significantly improves the material's plasticity and formability, better meeting the manufacturing needs of high-strength fasteners.

[0003] With the widespread application of warm forging technology, mold design faces higher requirements, including material selection, structural optimization, strength improvement, and precision control. Existing mold designs often struggle to balance molding quality and mold life when dealing with high-strength materials such as high-temperature alloys. Utility Model Content

[0004] The purpose of this invention is to provide a warm upsetting forming equipment that achieves efficient and high-quality forming from raw materials to bolt heads through the continuous cooperation of multiple sets of molds, thereby improving production efficiency, enhancing product quality, reducing material consumption, extending mold life, and reducing subsequent processing. It is particularly suitable for the mass production of high-strength bolts.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] This utility model provides a warm upsetting forming device, comprising:

[0007] Bundle molds are used to shape raw materials into bundles for processing bolts;

[0008] Pre-upsetting die, used to shape one end of the tie rod into a pre-upset part for machining into a bolt head;

[0009] A forming mold is used to shape the pre-forged portion into a bolt head blank;

[0010] A forming die is used to shape the bolt head blank into a bolt head precision blank.

[0011] A final upsetting die is used to shape the bolt head blank into a bolt head.

[0012] Specifically, in this embodiment, a threaded die is also included for threading a portion of the bundle to form a screw.

[0013] Specifically, in this embodiment, the bundle rod mold includes a bundle rod bottom mold and a bundle rod punch that cooperates with the bundle rod bottom mold to complete the bundle rod processing. The bundle rod punch includes a bundle rod punch body, a bundle rod punch ejector pin installed at one end of the punch body, a bundle rod inner pad installed on the side of the bundle rod punch ejector pin, a bundle rod punch rear pad installed at the other end of the punch body, and a bundle rod spring supported between the bundle rod inner pad and the bundle rod punch rear pad. The bundle rod bottom mold includes a bundle rod bottom mold body, a bundle rod bottom mold ejector pin installed at one end of the bundle rod bottom mold body, a bundle rod ejector pin sleeve installed on the side of the bundle rod bottom mold ejector pin, and a bundle rod bottom mold rear pad installed at the other end of the bundle rod bottom mold body.

[0014] Specifically, in this embodiment, the pre-upsetting mold includes a pre-upsetting bottom mold and a pre-upsetting punch that cooperates with the pre-upsetting bottom mold to complete the pre-upsetting head. The pre-upsetting punch includes a pre-upsetting punch body, a pre-upsetting punch ejector pin installed at one end of the pre-upsetting punch body, a pre-upsetting punch rear pad installed at the other end of the pre-upsetting punch body, and a pre-upsetting inner pad supported between the pre-upsetting punch ejector pin and the pre-upsetting punch rear pad. The pre-upsetting bottom mold includes a pre-upsetting bottom mold body, a pre-upsetting bottom mold ejector pin installed at one end of the pre-upsetting bottom mold body, a pre-upsetting bottom mold rear pad installed at the other end of the pre-upsetting bottom mold body, and a pre-upsetting ejector pin sleeve supported between the pre-upsetting bottom mold ejector pin and the pre-upsetting bottom mold rear pad.

[0015] Specifically, in this embodiment, the shaping mold includes a shaping bottom mold and a shaping punch that cooperates with the shaping bottom mold to complete the bolt head blank. The shaping punch includes a shaping punch body and a shaping punch rear pad installed at the end of the shaping punch body. The shaping bottom mold includes a shaping bottom mold body, a shaping bottom mold ejector pin installed at the end of the shaping bottom mold body, a shaping bottom mold rear pad installed at the other end of the shaping bottom mold body, and a shaping ejector pin sleeve supported between the shaping bottom mold ejector pin and the shaping bottom mold rear pad.

[0016] Specifically, in this embodiment, the forming mold includes a forming bottom mold and a forming punch that cooperates with the forming bottom mold to complete the bolt head blank. The forming punch includes a forming die body, a forming die ejector pin installed at one end of the forming die body, a forming die rear pad installed at the other end of the forming die body, and a forming inner pad supported between the forming die ejector pin and the forming die rear pad. The forming bottom mold includes a forming bottom mold body, a forming bottom mold ejector pin installed at one end of the forming bottom mold body, a forming bottom mold rear pad installed at the other end of the forming bottom mold, and a forming ejector pin sleeve supported between the forming bottom mold ejector pin and the forming bottom mold rear pad.

[0017] Specifically, in this embodiment, the final upsetting die includes a final upsetting bottom die and a final upsetting punch that cooperates with the final upsetting bottom die to complete the bolt head. The final upsetting punch includes a final upsetting die body, a final upsetting die ejector pin installed at one end of the final upsetting die body, a final upsetting die rear pad installed at the other end of the final upsetting die body, and a final upsetting inner pad supported between the final upsetting die ejector pin and the final upsetting die rear pad. The final upsetting bottom die includes a final upsetting bottom die body, a final upsetting bottom die ejector pin installed at one end of the final upsetting bottom die body, a final upsetting bottom die rear pad installed at the other end of the final upsetting bottom die body, and a final upsetting ejector pin sleeve supported between the final upsetting bottom die ejector pin and the final upsetting bottom die rear pad.

[0018] Specifically, in this embodiment, the warm upsetting equipment further includes a clamping mechanism for moving the raw material to be processed in the bundle mold, the pre-upsetting mold, the shaping mold, the forming mold and the final upsetting mold, and a control unit for controlling the clamping mechanism.

[0019] Specifically, in this embodiment, the pre-upsetting mold, the shaping mold, the forming mold, and the final upsetting mold are all equipped with position sensors for detecting incoming materials, and the position sensors are communicatively connected to the control unit.

[0020] This utility model provides a warm upsetting forming equipment, comprising: a bundle rod mold for forming raw materials into bundle rods for processing bolts; a pre-upsetting mold for forming one end of the bundle rod into a pre-upsetting part for processing into a bolt head; a shaping mold for forming the pre-upsetting part into a bolt head blank; a shaping mold for forming the bolt head blank into a bolt head finish blank; and a final upsetting mold for forming the bolt head finish blank into a bolt head. Through the continuous cooperation of multiple sets of molds, efficient and high-quality forming from raw materials to bolt heads is achieved, improving production efficiency, enhancing product quality, reducing material loss, extending mold life, and reducing subsequent processing. It is particularly suitable for the mass production of high-strength bolts. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a temperature upsetting process device provided in an embodiment of the present utility model.

[0023] 1. Bundle rod mold; 11. Bundle rod punching die; 111. Bundle rod punching die ejector pin; 112. Bundle rod inner pad; 113. Bundle rod spring; 114. Bundle rod punching die rear pad; 115. Bundle rod punching die body; 12. Bundle rod bottom mold; 121. Bundle rod bottom mold rear pad; 122. Bundle rod bottom mold ejector pin; 123. Bundle rod ejector pin sleeve; 124. Bundle rod bottom mold body; 2. Pre-upsetting mold; 21. Pre-upsetting punching die; 211. Pre-upsetting die ejector pin; 212. Pre-upsetting inner pad; 213. Pre-upsetting die rear pad; 214. Pre-upsetting die body; 22. Pre-upsetting bottom die; 221. Pre-upsetting bottom die rear pad; 222. Pre-upsetting bottom die ejector pin; 223. Pre-upsetting ejector pin sleeve; 224. Pre-upsetting bottom die body; 3. Shaping die; 31. Shaping die; 311. Shaping die rear pad; 312. Shaping die body; 32. 321. Shaping bottom mold; 322. Shaping bottom mold rear pad; 323. Shaping bottom mold ejector pin; 324. Shaping bottom mold body; 4. Shaping mold; 41. Shaping punch; 411. Shaping punch ejector pin; 412. Shaping inner pad; 413. Shaping punch rear pad; 414. Shaping punch body; 42. Shaping bottom mold; 421. Shaping bottom mold rear pad; 422. Shaping bottom mold body; 423. Ejector pin; 424. Shaping ejector pin sleeve; 5. Shaping bottom mold body; 6. Final upsetting mold; 7. Final upsetting punch; 8. Final upsetting punch ejector pin; 9. Final upsetting inner pad; 10. Final upsetting punch rear pad; 11. Final upsetting punch body; 12. Final upsetting bottom mold; 13. Final upsetting punch rear pad; 14. Final upsetting punch body; 15. Final upsetting bottom mold body; 16. Final upsetting bottom mold rear pad; 17. Final upsetting bottom mold ejector pin; 18. Final upsetting ejector pin sleeve; 19. Final upsetting bottom mold body. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] like Figure 1 As shown, a preferred embodiment of this utility model provides a warm upsetting forming device, comprising:

[0030] Bundle mold 1, used to form raw materials into bundles for processing bolts;

[0031] Pre-upsetting die 2 is used to form one end of the tie rod into a pre-upsetting part for machining into a bolt head;

[0032] The forming mold 3 is used to shape the pre-upset part into a bolt head blank;

[0033] Forming mold 4 is used to shape the bolt head blank into a bolt head finish blank;

[0034] The final upsetting mold 5 is used to shape the bolt head blank into a bolt head.

[0035] In this embodiment, the tie rod mold 1 is used to reduce and lengthen the diameter of the raw material's rod portion, laying the foundation for subsequent head forming; the pre-upsetting mold 2 is used to provide a basic shape for subsequent precise head forming, avoiding defects such as cracks or wrinkles during the subsequent forming process; the shaping mold 3 is used to ensure the head is formed in the mold through temperature and pressure control, avoiding defects such as cracks and wrinkles; the shaping mold 4 is used to prepare for the final upsetting of the head, ensuring the head's quality and appearance conformity; the final upsetting mold 5 is used to precisely control the thickness and diameter of the product's head flange. The five sets of molds work together step by step to complete the continuous warm upsetting of the raw material. Each mold corresponds to a specific forming step, ensuring the product's dimensional accuracy, surface quality, and performance requirements at each stage. This staged design significantly improves processing efficiency, material utilization, and product consistency, making it suitable for the mass production of high-strength bolts.

[0036] In this embodiment, a threading die is also included for threading a portion of the bolt to form a screw. The addition of the threading die enables the warm upsetting equipment to achieve integrated production from raw materials to complete bolts, significantly improving production efficiency, product quality, and material utilization.

[0037] In this embodiment, the tie rod mold 1 includes a tie rod bottom mold 12 and a tie rod punch 11 that cooperates with the tie rod bottom mold 12 to complete the tie rod processing. The tie rod punch 11 includes a tie rod punch body 115, a tie rod punch ejector pin 111 installed at the end of the punch body, a tie rod inner pad 112 installed on the side of the tie rod punch ejector pin 111, a tie rod punch rear pad 114 installed at the other end of the punch body, and a tie rod spring 113 supported between the tie rod inner pad 112 and the tie rod punch rear pad 114. The tie rod bottom mold 12 includes a tie rod bottom mold body 124, a tie rod bottom mold ejector pin 122 installed at the end of the tie rod bottom mold body 124, a tie rod ejector pin sleeve 123 installed on the side of the tie rod bottom mold ejector pin 122, and a tie rod bottom mold rear pad 121 installed at the other end of the tie rod bottom mold body 124.

[0038] Specifically, the main body 115 of the tie rod punch consists of a tie rod punch ejector pin 111, a tie rod inner pad 112, a tie rod spring 113, and a tie rod punch rear pad 114. These components are sequentially placed into the main body 115 of the tie rod punch to form the completed tie rod punch 11. The main body 124 of the tie rod bottom die consists of a tie rod bottom die rear pad 121, a tie rod bottom die ejector pin 122, and a tie rod ejector pin sleeve 123. These components are sequentially placed into the main body 124 of the tie rod bottom die to form the completed tie rod bottom die 12.

[0039] Specifically, the bundle rod punching die 11 assembly applies pressure to the raw material through the cooperation of the bundle rod punching die ejector pin 111 and the bundle rod inner pad 112, so that it forms a bundle rod in the bundle rod bottom die 12. In a preferred embodiment, the neck of the bundle rod bottom die 12 has a 5° taper angle and the surface roughness of the cavity is Ra0.2.

[0040] In this embodiment, the pre-upsetting die 2 includes a pre-upsetting bottom die 22 and a pre-upsetting punch 21 that cooperates with the pre-upsetting bottom die 22 to complete the pre-upsetting head. The pre-upsetting punch 21 includes a pre-upsetting punch body 214, a pre-upsetting punch ejector pin 211 installed at one end of the pre-upsetting punch body 214, a pre-upsetting punch rear pad 213 installed at the other end of the pre-upsetting punch body 214, and a support pin 211. 1. A pre-upsetting inner pad 212 between the pre-upsetting die back pad 213 and the pre-upsetting bottom die; the pre-upsetting bottom die 22 includes a pre-upsetting bottom die body 224, a pre-upsetting bottom die ejector pin 222 installed at one end of the pre-upsetting bottom die body 224, a pre-upsetting bottom die back pad 221 installed at the other end of the pre-upsetting bottom die body 224, and a pre-upsetting ejector pin sleeve 223 supported between the pre-upsetting bottom die ejector pin 222 and the pre-upsetting bottom die back pad 221.

[0041] Specifically, the pre-upsetting die body 214 consists of a pre-upsetting die ejector pin 211, a pre-upsetting inner pad 212, and a pre-upsetting die rear pad 213. These components are sequentially placed into the pre-upsetting die body 214 to form the completed pre-upsetting die 21. The pre-upsetting bottom die body 224 consists of a pre-upsetting bottom die rear pad 221, a pre-upsetting bottom die ejector pin 222, and a pre-upsetting ejector pin sleeve 223. These components are sequentially placed into the pre-upsetting bottom die body 224 to form the completed pre-upsetting bottom die 22.

[0042] Specifically, the pre-upsetting die 21, through the cooperation of the pre-upsetting die ejector pin 211 and the pre-upsetting inner pad 212, extrudes and deforms the end part of the tie rod to form a preliminary head shape. The pre-upsetting bottom die 22, through the cooperation of the pre-upsetting bottom die ejector pin 222 and the pre-upsetting ejector pin sleeve 223, ensures the quality and accuracy of the pre-upsetting head.

[0043] In this embodiment, the molding die 3 includes a molding bottom mold 32 and a molding punch 31 that cooperates with the molding bottom mold 32 to complete the bolt head blank. The molding punch 31 includes a molding punch body 312 and a molding punch back pad 311 installed at the end of the molding punch body 312. The molding bottom mold 32 includes a molding bottom mold body 324, a molding bottom mold ejector pin 322 installed at the end of the molding bottom mold body 324, a molding bottom mold back pad 321 installed at the other end of the molding bottom mold body 324, and a molding ejector pin sleeve 323 supported between the molding bottom mold ejector pin 322 and the molding bottom mold back pad 321.

[0044] Specifically, the forming die consists of a forming die body 312 and a forming die backing 311; the forming bottom die body 324 consists of a forming bottom die backing 321, a forming bottom die ejector pin 322, and a forming ejector pin sleeve 323. These components are sequentially placed into the forming bottom die body 324 to form the completed forming bottom die 32.

[0045] Specifically, the head is further shaped by the cooperation of the shaping die 31 and the shaping bottom die 32 to form a cylindrical shape. Temperature and pressure control are used to ensure that the head is formed in the mold.

[0046] In this embodiment, the shaping mold 4 includes a shaping bottom mold 42 and a shaping punch 41 that cooperates with the shaping bottom mold 42 to complete the bolt head blank. The shaping punch 41 includes a shaping body, a shaping punch ejector pin 411 installed at the end of the shaping body, a shaping punch rear pad 413 installed at the other end of the shaping punch body 414, and a shaping inner pad 412 supported between the shaping punch ejector pin 411 and the shaping punch rear pad 413. The shaping bottom mold 42 includes a shaping bottom mold body 424, a shaping bottom mold ejector pin 422 installed at the end of the shaping bottom mold 42, a shaping bottom mold rear pad 421 installed at the other end of the shaping bottom mold, and a shaping ejector pin sleeve 423 supported between the shaping bottom mold ejector pin 422 and the shaping bottom mold rear pad 421.

[0047] Specifically, the forming die body 414 consists of a forming die ejector pin 411, a forming inner pad 412, and a forming die rear pad 413. These components are sequentially placed into the forming die body 414 to form the completed forming die 41. The forming bottom die 42 body consists of a forming bottom die rear pad 421, a forming bottom die ejector pin 422, and a forming ejector pin sleeve 423. These components are sequentially placed into the forming bottom die body 424 to form the completed forming bottom die 42.

[0048] Specifically, by cooperating with the shaping die 41 and the shaping bottom die 42, the hexagonal and outer diameter dimensions of the head are adjusted to prepare for the final upsetting of the head.

[0049] In this embodiment, the final upsetting die 5 includes a final upsetting bottom die 52 and a final upsetting punch 51 that cooperates with the final upsetting bottom die 52 to complete the bolt head. The final upsetting punch 51 includes a final upsetting punch body 514, a final upsetting punch ejector pin 511 installed at one end of the final upsetting punch body 514, a final upsetting punch rear pad 513 installed at the other end of the final upsetting punch body 514, and a support pin 51 on the final upsetting punch ejector pin 51. 1. An inner pad 512 for final upsetting between the final upsetting die back pad 513 and the final upsetting die; the final upsetting die 52 includes a final upsetting die body 524, a final upsetting die ejector pin 522 installed at one end of the final upsetting die body 524, a final upsetting die back pad 521 installed at the other end of the final upsetting die body 524, and a final upsetting ejector pin sleeve 523 supported between the final upsetting die ejector pin 522 and the final upsetting die back pad 521.

[0050] Specifically, the final upsetting die body 514 consists of a final upsetting die ejector pin 511, a final upsetting inner pad 512, and a final upsetting die rear pad 513. These components are sequentially placed into the final upsetting die body 514 to form the completed final upsetting die 51. The final upsetting bottom die body 524 consists of a final upsetting bottom die rear pad 521, a final upsetting bottom die ejector pin 522, and a final upsetting ejector pin sleeve 523. These components are sequentially placed into the final upsetting bottom die body 524 to form the completed final upsetting bottom die 52.

[0051] Specifically, the final hexagonal flange of the product is formed by the cooperation of the final upsetting die 51 and the final upsetting bottom die 52. The key to this stage is to precisely control the thickness and diameter of the flange head by adjusting the distance between the die and the bottom die, while controlling the outer diameter and length of the bolt shank by controlling the bottom die.

[0052] In this embodiment, the warm upsetting equipment also includes a clamping mechanism for moving the raw material being processed between the tie rod mold 1, pre-upsetting mold 2, shaping mold 3, forming mold 4, and final upsetting mold 5, as well as a control unit for controlling the clamping mechanism. The control unit ensures rapid and accurate material transfer between the molds by adjusting the actions of the clamping mechanism in real time, further shortening the production cycle.

[0053] Specifically, the pre-upsetting mold 2, shaping mold 3, forming mold 4, and final upsetting mold 5 are all equipped with position sensors for detecting the incoming material. These position sensors are communicatively connected to the control unit. The control unit adjusts the action of the clamping mechanism based on the sensor feedback to ensure the molding quality of each process and improve product consistency and reliability.

[0054] Specifically, the addition of the clamping mechanism and control unit enables automated material transfer and precise positioning in the warm upsetting equipment, significantly improving production efficiency, product quality, and equipment utilization. The communication connection between the position sensor and the control unit ensures accurate material positioning in each mold, avoiding molding defects, and is particularly suitable for the mass production of high-strength bolts.

[0055] This utility model provides a warm upsetting forming equipment, comprising: a bundle rod mold 1 for forming raw materials into bundle rods for processing bolts; a pre-upsetting mold 2 for forming one end of the bundle rod into a pre-upsetting part for processing into a bolt head; a shaping mold 3 for forming the pre-upsetting part into a bolt head blank; a shaping mold 4 for forming the bolt head blank into a bolt head finish blank; and a final upsetting mold 5 for forming the bolt head finish blank into a bolt head. Through the continuous cooperation of multiple sets of molds, efficient and high-quality forming from raw materials to bolt heads is achieved, improving production efficiency, enhancing product quality, reducing material loss, extending mold life, and reducing subsequent processing. It is particularly suitable for the mass production of high-strength bolts.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A warm upsetting forming device, characterized in that, include: A bundle rod mold (1) is used to form raw materials into bundle rods for processing bolts; Pre-upsetting die (2) is used to form one end of the tie rod into a pre-upsetting part for machining into a bolt head; A molding die (3) is used to shape the pre-forged portion into a bolt head blank; The forming mold (4) is used to form the bolt head blank into a bolt head blank; The final upsetting mold (5) is used to form the bolt head blank into a bolt head.

2. The warm upsetting equipment according to claim 1, characterized in that, It also includes a threading die for threading a portion of the bundle to form a screw.

3. The warm upsetting equipment according to claim 1, characterized in that, The bundle rod mold (1) includes a bundle rod bottom mold (12) and a bundle rod punch (11) that cooperates with the bundle rod bottom mold (12) to complete the bundle rod processing. The bundle rod punch (11) includes a bundle rod punch body (115), a bundle rod punch ejector pin (111) installed at the end of the punch body, a bundle rod inner pad (112) installed on the side of the bundle rod punch ejector pin (111), a bundle rod punch rear pad (114) installed at the other end of the punch body, and a support. A spring (113) for the bundle rod is located between the inner pad (112) and the rear pad (114) of the bundle rod punch. The bottom die (12) of the bundle rod includes a bottom die body (124), a bottom die ejector pin (122) installed at the end of the bottom die body (124), a bundle ejector pin sleeve (123) installed on the side of the bottom die ejector pin (122), and a rear pad (121) for the bottom die (124) installed at the other end of the bottom die body (124).

4. The warm upsetting equipment according to claim 1, characterized in that, The pre-upsetting die (2) includes a pre-upsetting bottom die (22) and a pre-upsetting punch (21) that cooperates with the pre-upsetting bottom die (22) to complete the pre-upsetting head. The pre-upsetting punch (21) includes a pre-upsetting die body (214), a pre-upsetting die ejector pin (211) installed at one end of the pre-upsetting die body (214), a pre-upsetting die rear pad (213) installed at the other end of the pre-upsetting die body (214), and a support for the pre-upsetting die ejector pin (211) and the pre-upsetting die body (214). The pre-upsetting inner pad (212) is between the pre-upsetting die back pad (213); the pre-upsetting bottom die (22) includes a pre-upsetting bottom die body (224), a pre-upsetting bottom die ejector pin (222) installed at one end of the pre-upsetting bottom die body (224), a pre-upsetting bottom die back pad (221) installed at the other end of the pre-upsetting bottom die body (224), and a pre-upsetting ejector pin sleeve (223) supported between the pre-upsetting bottom die ejector pin (222) and the pre-upsetting bottom die back pad (221).

5. The warm upsetting equipment according to claim 1, characterized in that, The shaping mold (3) includes a shaping bottom mold (32) and a shaping punch (31) that cooperates with the shaping bottom mold (32) to complete the bolt head blank. The shaping punch (31) includes a shaping punch body (312) and a shaping punch back pad (311) installed at the end of the shaping punch body (312). The shaping bottom mold (32) includes a shaping bottom mold body (324), a shaping bottom mold ejector pin (322) installed at the end of the shaping bottom mold body (324), a shaping bottom mold back pad (321) installed at the other end of the shaping bottom mold body (324), and a shaping ejector pin sleeve (323) supported between the shaping bottom mold ejector pin (322) and the shaping bottom mold back pad (321).

6. The warm upsetting equipment according to claim 1, characterized in that, The forming mold (4) includes a forming bottom mold (42) and a forming punch (41) that cooperates with the forming bottom mold (42) to complete the bolt head blank. The forming punch (41) includes a forming punch body (414), a forming punch ejector pin (411) installed at one end of the forming punch body (414), a forming punch rear pad (413) installed at the other end of the forming punch body (414), and a support for the forming punch ejector pin (411) and the bolt head blank. The forming inner pad (412) is between the forming die back pad (413); the forming bottom die (42) includes a forming bottom die body (424), a forming bottom die ejector pin (422) installed at one end of the forming bottom die body (424), a forming bottom die back pad (421) installed at the other end of the forming bottom die body (424), and a forming ejector pin sleeve (423) supported between the forming bottom die ejector pin (422) and the forming bottom die back pad (421).

7. The warm upsetting equipment according to claim 1, characterized in that, The final upsetting die (5) includes a final upsetting bottom die (52) and a final upsetting punch (51) that cooperates with the final upsetting bottom die (52) to complete the bolt head. The final upsetting punch (51) includes a final upsetting die body (514), a final upsetting die ejector pin (511) installed at one end of the final upsetting die body (514), a final upsetting die rear pad (513) installed at the other end of the final upsetting die body (514), and a support for the final upsetting die ejector pin (511) and the bolt head. The final upsetting inner pad (512) is between the final upsetting die back pad (513); the final upsetting bottom die (52) includes a final upsetting bottom die body (524), a final upsetting bottom die ejector pin (522) installed at one end of the final upsetting bottom die body (524), a final upsetting bottom die back pad (521) installed at the other end of the final upsetting bottom die body (524), and a final upsetting ejector pin sleeve (523) supported between the final upsetting bottom die ejector pin (522) and the final upsetting bottom die back pad (521).

8. The warm upsetting equipment according to claim 1, characterized in that, The warm upsetting equipment further includes a clamping mechanism for moving the raw material being processed in the bundle mold (1), the pre-upsetting mold (2), the shaping mold (3), the shaping mold (4) and the final upsetting mold (5), and a control unit for controlling the clamping mechanism.

9. The warm upsetting equipment according to claim 8, characterized in that, The pre-upsetting mold (2), the shaping mold (3), the forming mold (4) and the final upsetting mold (5) are all equipped with position sensors for detecting incoming materials, and the position sensors are communicatively connected to the control unit.

Images