Hot forging punching male die with quick-changing structure

Abstract

The utility model discloses a hot forging punching male die with a quick-change structure, relates to the technical field of punching dies, and aims to solve the problems that the punching dies are low in disassembly, assembly and maintenance efficiency and poor in installation and positioning precision. According to the utility model, the surface quality and the service life of the supporting surface of the male die body are improved and prolonged mainly through the arrangement of the locking sleeve connection shaft, the locking spacer sleeve and the male die body, and the possibility that the axis of the male die body deviates from the mounting and positioning position due to the stress deformation of the supporting surface in the punching process of the male die body is reduced. The piston cylinder is arranged to drive the locking power shaft to move axially, so that the mounting and locking effects of the punching die are improved, the locking action speed of the punching die is increased, and the punching automation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching dies, in particular to a hot forging punching die with a quick-change structure. Background Art

[0002] Forging is a processing method that uses a forging machine to apply pressure to a metal blank to cause it to undergo plastic deformation in order to obtain a forging with certain mechanical properties, shape and size. In particular, hot die forgings such as gear blanks have inner holes that are usually formed into blind holes during the forging process, and then punched through by punching punches and die during the hot punching process. The punching punch is a consumable part that will fail due to normal wear after high-intensity and high-frequency punching, and requires frequent replacement or repair.

[0003] In the prior art, for example, the U.S. invention patent US8739668B2 discloses a punching die with a device for replacing at least one punch. In the technical solution of this invention patent, a pneumatic method is used to adjust the movement of the cavity and the solid cavity assembly module so that the punch and the adjustment cavity are accommodated in coordination, and the solid module is used to dock the selected punch limiter, so that a variety of cutting punches can be replaced; however, this invention patent may cause docking misalignment, resulting in unstable force on the punch, causing the punching docking positioning to deviate, and it may be difficult to disassemble and maintain the punch when it fails or is damaged.

[0004] For example, Japanese invention patent JP6005610B2 ​​discloses a forging demolding device for a hollow shaft. In this invention patent, the connection between the punch and the template support adopts a sliding fit, and the matching cavity reserves space for demolding and punch support. The matching accuracy of the cavity depends on the matching between the two templates and the manufacturing accuracy. There may be a situation where the punch installation positioning is misaligned and the supporting effect is poor, resulting in accidental damage to the punch die. The punching work efficiency may be poor, and it is difficult to quickly replace the punch die. Utility Model Content

[0005] The utility model aims to provide a hot forging punching punch with a quick-change structure to solve the problems of low disassembly and maintenance efficiency of the punching die and poor installation and positioning accuracy of the die.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A quick-change structure hot forging punching punch comprises a punch handle, a punch fixing plate is slidably connected to the lower end of the punch handle, a supporting bottom plate is provided at the lower end of the punch handle, a group of uniformly distributed clamping studs are provided in the punch fixing plate, the upper end of the supporting bottom plate is rotatably connected to the clamping studs, a locking isolation sleeve is fixedly connected to the upper end surface of the punch handle, a punch body is provided at the upper end of the locking isolation sleeve, a sleeve installation cavity is provided in the punch handle, a locking sleeve shaft is provided in the sleeve installation cavity, a locking power cavity is provided in the supporting bottom plate, and a locking sleeve shaft is slidably connected to the punch body;

[0008] By arranging a locking sleeve connecting shaft and a locking isolation sleeve to lock the punch body on the upper end of the punch handle, the surface quality and service life of the punch body supporting surface are improved, and the possibility of the punch body supporting surface being deformed by force during the punching process, causing the axis of the punch body to deviate from the position when installed, is reduced. The material loss in the manufacturing of the punching die is reduced, the manufacturing cost of the punching die is saved, and the convenience and efficiency of disassembly, assembly and maintenance of the punching die are improved.

[0009] Preferably, a locking sleeve cavity and a locking guide cavity are provided in the male mold body, the upper end of the locking sleeve shaft is located in the locking sleeve cavity, the locking guide cavity is slidably connected to the locking sleeve shaft, and a locking power shaft is provided on the lower side of the locking sleeve shaft;

[0010] By providing the sleeve cooperation of the locking guide cavity and the locking sleeve shaft, the stability of the installation and force of the punch body is improved, and the convenience of disassembling and replacing the punch body at the locking isolation sleeve and the upper end of the punch handle is improved.

[0011] Preferably, an isolation positioning cavity is provided in the locking isolation sleeve, and an isolation guide stud is provided in the isolation positioning cavity; the possibility of the force bearing surface of the punch body being damaged by local stress concentration is reduced, and the installation accuracy and service life of the punch body are improved.

[0012] Preferably, the lower end of the locking sleeve shaft is slidably connected with a coupling sleeve, and the upper end of the locking power shaft is fixedly connected with the coupling sleeve.

[0013] Preferably, the lower end of the locking sleeve shaft is fixedly connected with a coupling limit ear, an anti-rotation docking cavity is provided in the coupling sleeve, the locking sleeve shaft is slidably connected in the upper end wall of the anti-rotation docking cavity, and a coupling passage is provided in the upper end wall of the anti-rotation docking cavity;

[0014] By arranging the coupling sleeve and the locking sleeve shaft to be sleeved together, the labor intensity of manual disassembly and maintenance is reduced, and the efficiency of the punching work is improved.

[0015] Preferably, the lower end of the anti-rotation docking cavity is rotatably connected with an adjusting mounting plug, the upper end surface of the adjusting mounting plug is fixedly connected with an anti-rotation docking spring, an anti-rotation slide plate is provided on the upper side of the anti-rotation docking spring, the anti-rotation docking cavity is slidably connected with the anti-rotation slide plate, the upper end surface of the anti-rotation slide plate is fixedly connected with an anti-rotation block, the anti-rotation block is a regular polyhedron structure, and an anti-rotation matching cavity is provided in the lower end surface of the locking sleeve shaft;

[0016] The anti-rotation block and the anti-rotation slide plate are provided to limit the rotation of the locking sleeve shaft, thereby improving the convenience of docking the locking sleeve shaft and the coupling sleeve, improving the installation stability of the punch body, and improving the safety of the punching die.

[0017] Preferably, a withdrawal hole is provided in the locking sleeve shaft, the withdrawal hole is connected to the anti-rotation matching cavity, a withdrawal limit seat is provided in the withdrawal hole, a withdrawal control rod is slidably connected in the withdrawal limit seat, and the withdrawal control rod is aligned with the center of the anti-rotation block, thereby improving the efficiency of the removal operation of the punch body.

[0018] Preferably, a piston cylinder is provided in the locking power chamber, and the upper end of the piston cylinder is dynamically connected to the locking power shaft;

[0019] By arranging a piston cylinder to drive the locking power shaft to move axially, the locking effect of the punching die installation is improved, the locking action speed of the punching die is increased, and the punching automation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the overall assembly structure of a quick-change hot forging punching punch of the utility model;

[0022] Figure 2 It is a schematic diagram of the main view of a hot forging punching punch with a quick-change structure of the utility model;

[0023] Figure 3 yes Figure 2 Schematic diagram of the half-section structure;

[0024] Figure 4 yes Figure 3 A local enlarged schematic diagram of the middle A;

[0025] Figure 5 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0026] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the middle locking sleeve shaft;

[0027] Figure 7 yes Figure 6 A partial enlarged schematic diagram of point C in the middle;

[0028] Figure 8 yes Figure 6 Schematic diagram of the assembly relationship between the middle adjustment mounting plug and the anti-rotation slide plate;

[0029] Fig. 9 yes Figure 6 Schematic diagram of the assembly relationship between the middle locking sleeve shaft and the coupling sleeve;

[0030] Fig.10 yes Figure 5 Schematic diagram of the three-dimensional structure of the middle locking sleeve shaft;

[0031] Fig.11 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle coupling sleeve;

[0032] Fig.12 yes Fig.11 Schematic diagram of the half-section structure.

[0033] Figure numbers: punch handle 10; sleeve installation cavity 11; punch fixing plate 12; supporting base plate 13; clamping stud 14; locking guide cavity 15; locking power cavity 20; movable limit plug 21; piston cylinder 22; locking power shaft 23; power shaft seat 24; locking isolation sleeve 50; punch body 51; locking sleeve cavity 52; locking sleeve shaft 53; isolation positioning cavity 54; isolation guide stud 55; withdrawal hole 56; coupling sleeve 57; anti-rotation docking spring 58; adjusting mounting plug 59; anti-rotation docking cavity 60; anti-rotation slide plate 61; anti-rotation block 62; anti-rotation matching cavity 63; withdrawal limit seat 64; withdrawal control rod 65; coupling channel 66; coupling limit ear 67. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0036] Embodiment 1

[0037] See attached Figure 1 To Attachment Figure 5As shown, the utility model provides a quick-change structure hot forging punching punch, including a punch handle 10, the lower end of the punch handle 10 is slidably connected to a punch fixing plate 12, a through hole is provided in the punch fixing plate 12, the punch handle 10 is slidably connected in the through hole in the punch fixing plate 12, the through hole in the punch fixing plate 12 can provide guidance for the punch handle 10 to slide along its axial direction, the through hole can limit the punch handle 10 from sliding upward relative to the punch fixing plate 12, the lower end of the punch handle 10 is provided with a supporting bottom plate 13, the punch fixing A group of uniformly distributed clamping studs 14 are provided in the plate 12, and the upper end of the supporting bottom plate 13 is rotatably connected to the clamping studs 14. A groove is provided in the upper end surface of the supporting bottom plate 13 to support and engage the lower end surface of the punch handle 10. The clamping studs 14 can tighten and reduce the distance between the punch fixing plate 12 and the supporting bottom plate 13. When the punch fixing plate 12 and the supporting bottom plate 13 are tightened and reduced in distance, the through hole in the punch fixing plate 12 and the groove in the upper end of the supporting bottom plate 13 cooperate to limit the punch handle 10, which can The lower end of the punch handle 10 is fixed between the punch fixing plate 12 and the supporting bottom plate 13, thereby fixing the installation state of the punch handle 10. When the punch handle 10 is locked between the punch fixing plate 12 and the supporting bottom plate 13, there is a gap between the lower end surface of the punch fixing plate 12 and the upper end surface of the supporting bottom plate 13, which can provide a locking distance margin for adjusting the locking force of the punch handle 10, and can transfer the pressure received by the punch handle 10 during the punching process to the supporting bottom plate 13, thereby improving the force of the mold during the punching process. The supporting area and the stability of the force, the upper end surface of the punch handle 10 is fixedly connected with a locking isolation sleeve 50, the upper end of the locking isolation sleeve 50 is provided with a punch body 51, the punch handle 10 is provided with a sleeve installation cavity 11, the sleeve installation cavity 11 is provided with a locking sleeve shaft 53, the supporting bottom plate 13 is provided with a locking power cavity 20, the locking power cavity 20 is connected with the sleeve installation cavity 11, the radial area of ​​the locking power cavity 20 is smaller than the lower end surface of the punch handle 10, and the locking sleeve shaft 53 is slidably connected in the punch body 51;

[0038] The lower end surface of the locking isolation sleeve 50 cooperates with the upper end surface of the punch handle 10 to avoid direct contact between the punch body 51 and the punch handle 10. Under the separation effect of the locking isolation sleeve 50, the positioning area of ​​the punch body 51 is increased, thereby increasing the force support area of ​​the punch body 51 and reducing the force support reaction pressure of the punch body 51. It can prevent the punch body 51 from directly transmitting the punching force to the surface of the punch handle 10, improve the surface quality and service life of the support surface of the punch body 51, and reduce the possibility of the axis of the punch body 51 deviating from the position when it is installed and positioned due to the force deformation of the support surface of the punch body 51 during the punching process.

[0039] In addition, the punch body 51 is slidably sleeved on the upper end of the punch handle 10 through the locking sleeve shaft 53, so that the punching force can be concentrated on the punch body 51 during the punching process. When the punching mold structure is damaged or misaligned, only the punch body 51 needs to be replaced, thereby avoiding the complete manufacturing of the punching mold positioning and supporting structure of various parts, reducing the loss of materials in the manufacturing of the punching mold, and saving the manufacturing cost of the punching mold; the punch body 51 can be locked and released by disassembling and assembling the locking sleeve shaft 53, thereby improving the convenience and efficiency of disassembly and assembly and maintenance of the punching mold.

[0040] Refer to the attached Figure 3 and attached Figure 5 As shown, a locking sleeve connection cavity 52 and a locking guide cavity 15 are provided in the male mold body 51, the upper end of the locking sleeve connection shaft 53 is located in the locking sleeve connection cavity 52, the diameter of the locking sleeve connection cavity 52 is larger than the diameter of the locking guide cavity 15, the locking guide cavity 15 is located at the lower side of the locking sleeve connection cavity 52, the locking sleeve connection cavity 52 and the locking guide cavity 15 pass through the male mold body 51, the locking sleeve connection shaft 53 is slidably connected in the locking guide cavity 15, the locking sleeve connection shaft 53 passes through the locking guide cavity 15, a locking power shaft 23 is provided at the lower side of the locking sleeve connection shaft 53, two power shaft seats 24 distributed up and down are fixedly connected in the sleeve installation cavity 11, and the locking power shaft 23 is slidably connected in the two power shaft seats 24;

[0041] The upper end of the locking sleeve shaft 53 is fitted with the lower end wall of the locking sleeve cavity 52. ​​When the locking power shaft 23 drives the locking sleeve shaft 53 to move downward, the locking sleeve shaft 53 drives the punch body 51 to move downward and fit into the upper end surface of the locking isolation sleeve 50, thereby increasing the locking force area of ​​the punch body 51 locked on the locking isolation sleeve 50 and the punch handle 10, improving the installation and force stability of the punch body 51, and improving the convenience of disassembling and replacing the punch body 51 at the upper end of the locking isolation sleeve 50 and the punch handle 10.

[0042] Refer to the attached Figure 5 As shown, the locking isolation sleeve 50 is provided with a through hole having a diameter larger than the sleeve installation cavity 11, and the locking isolation sleeve 50 is provided with a group of isolation positioning cavities 54 evenly distributed in the circumferential direction, and the isolation positioning cavities 54 are provided with isolation guide studs 55, and the lower end surface of the locking isolation sleeve 50 is engaged with the upper end surface of the punch handle 10 through the isolation guide studs 55, and the isolation positioning cavity 54 is rotatably connected with the isolation guide studs 55, and the upper end of the punch handle 10 is rotatably connected with the isolation guide studs 55 by opening a countersunk hole;

[0043] Positioning and installing the isolation guide stud 55 in the isolation positioning cavity 54 can limit the freedom of the locking isolation sleeve 50 to rotate around the normal direction of the locking isolation sleeve 50 in the upper end surface of the punch handle 10, and provide positioning for the abutment between the locking isolation sleeve 50 and the punch body 51, thereby improving the installation accuracy of the locking isolation sleeve 50 and the punch handle 10, improving the horizontality of the upper end surface of the punch body 51, reducing the possibility of the force bearing surface of the punch body 51 being damaged by local stress concentration, and improving the installation accuracy and service life of the punch body 51.

[0044] The lower end of the locking sleeve shaft 53 is slidably connected with a coupling sleeve 57 , and the upper end of the locking power shaft 23 is fixedly connected with the coupling sleeve 57 .

[0045] Refer to the attached Figure 1 To Attachment Figure 6 And attached Fig. 9 To Attachment Fig.12 As shown, the lower end of the locking sleeve shaft 53 is fixedly connected with a coupling stop ear 67, and an anti-rotation docking cavity 60 is provided in the coupling sleeve 57. The locking sleeve shaft 53 is slidably connected in the upper end wall of the anti-rotation docking cavity 60, and a coupling passage 66 is provided in the upper end wall of the anti-rotation docking cavity 60. The coupling passage 66 can accommodate the upward and downward movement of the coupling stop ear 67;

[0046] When the coupling channel 66 accommodates the coupling limit ear 67 to move up and down, the locking sleeve shaft 53 slides in the upper end wall of the anti-rotation docking cavity 60, and the coupling limit ear 67 enters the anti-rotation docking cavity 60 after passing through the coupling channel 66. The rotating locking sleeve shaft 53 drives the coupling limit ear 67 to slide in the upper end wall of the anti-rotation docking cavity 60 and leave the position matched with the coupling channel 66. At this time, the upper end wall of the anti-rotation docking cavity 60 contacts the coupling limit ear 67, thereby limiting the axial sliding of the locking sleeve shaft 53. When the locking power shaft 23 drives the coupling sleeve 57 to move downward, the locking sleeve shaft 53 drives the convex mold body 51 slidably sleeved on the upper end of the locking sleeve shaft 53 to move downward, thereby driving the convex mold body 51 to be locked on the locking isolation sleeve 50 and the upper end of the convex mold handle 10.

[0047] When removing the punch body 51, the locking power shaft 23 drives the coupling sleeve 57 to move upward in the sleeve installation cavity 11, and then the locking sleeve shaft 53 is rotated to drive the coupling limit ear 67 to rotate in the anti-rotation docking cavity 60 to a position that cooperates with the coupling channel 66, thereby releasing the locking sleeve shaft 53, and then the locking sleeve shaft 53 is moved upward in the punch body 51 to be pulled out, and then the new punch body 51 can be replaced to cooperate with the locking sleeve shaft 53, and then the coupling sleeve 57 and the coupling limit ear 67 lock the replaced punch body 51 on the punch handle 10 and the upper end of the locking isolation sleeve 50 through the same cooperation; the convenience of disassembly and maintenance of the punch body 51 is improved, the labor intensity of manual disassembly and maintenance is reduced, and the efficiency of punching work is improved.

[0048] Refer to the attached Figure 5 To Attachment Fig.12 As shown, the lower end of the anti-rotation docking cavity 60 is rotatably connected with an adjusting mounting plug 59, the upper end surface of the adjusting mounting plug 59 is fixedly connected with an anti-rotation docking spring 58, an anti-rotation slide plate 61 is provided on the upper side of the anti-rotation docking spring 58, the anti-rotation docking cavity 60 is provided with an axially guided track in the circumferential side wall to slide and connect the anti-rotation slide plate 61, the upper end surface of the anti-rotation slide plate 61 is fixedly connected with an anti-rotation block 62, the anti-rotation block 62 is a regular polyhedron structure, and an anti-rotation matching cavity 63 is opened in the lower end surface of the locking sleeve shaft 53, and the anti-rotation matching cavity 63 matches the outer contour of the anti-rotation block 62;

[0049] Under the elastic force of the anti-rotation docking spring 58, the anti-rotation docking spring 58 drives the anti-rotation slide plate 61 to slide upward in the anti-rotation docking cavity 60, thereby driving the anti-rotation block 62 to move up into the anti-rotation matching cavity 63. The anti-rotation block 62 and the anti-rotation slide plate 61 can limit the freedom of the locking sleeve shaft 53 to rotate around its axis. The more side surfaces of the anti-rotation block 62, the higher the docking accuracy between the locking sleeve shaft 53 and the anti-rotation block 62. The matching mode between the anti-rotation slide plate 61 and the anti-rotation docking spring 58 can be fixed The connecting or anti-rotation docking spring 58 can slide locally on the lower end surface of the anti-rotation slide plate 61, which can prevent the locking sleeve shaft 53 from being subjected to force to drive the connecting shaft limit ear 67 to rotate to a position that cooperates with the connecting shaft channel 66, thereby preventing the locking sleeve shaft 53 and the connecting shaft sleeve 57 from accidentally disengaging from the socket-fitting state, thereby improving the convenience of docking the locking sleeve shaft 53 and the connecting shaft sleeve 57, thereby improving the efficiency of disassembling and replacing the punch body 51, improving the installation stability of the punch body 51, and improving the safety of using the punching mold.

[0050] A withdrawal hole 56 is provided in the locking sleeve shaft 53, and the withdrawal hole 56 is communicated with the anti-rotation matching cavity 63. A withdrawal limit seat 64 is provided in the withdrawal hole 56, and a withdrawal control rod 65 is slidably connected in the withdrawal limit seat 64. The withdrawal limit seat 64 can limit the axial movement distance of the withdrawal control rod 65 in the withdrawal hole 56, and the withdrawal control rod 65 is aligned with the center of the anti-rotation block 62;

[0051] When removing the locked punch body 51, push the withdrawal control rod 65 downward in the withdrawal hole 56, press down the anti-rotation block 62 to drive the locking sleeve shaft 53 and the anti-rotation slide plate 61 to separate from the fitting state, thereby releasing the locking sleeve shaft 53 from rotating in the anti-rotation docking cavity 60. After rotating the punch body 51, the locking sleeve shaft 53 is driven to rotate in the upper end wall of the anti-rotation docking cavity 60 through friction, and the coupling limit ear 67 is driven to rotate to a position that cooperates with the coupling channel 66, thereby pulling the locking sleeve shaft 53 out of the coupling sleeve 57, and then the punch body 51 is removed, thereby improving the efficiency of the removal operation of the punch body 51.

[0052] The locking power chamber 20 penetrates the supporting bottom plate 13 and is communicated with the sleeve installation chamber 11. A piston cylinder 22 is arranged in the locking power chamber 20. The upper end of the piston cylinder 22 is dynamically connected to the locking power shaft 23. The lower end of the locking power chamber 20 is rotatably connected to a movable limit stopper 21.

[0053] By setting the piston cylinder 22 to drive the locking power shaft 23 to move axially, the power for automatically driving the locking of the punching die can be provided, thereby improving the locking effect of the punching die installation, increasing the locking action speed of the punching die, further improving the punching automation efficiency, and reducing the labor intensity.

[0054] Embodiment 2

[0055] Refer to the attached Figure 1 To Attachment Figure 3 As shown, the through hole provided in the punch fixing plate 12 can be replaced by a through hole with a non-circular cross-section, and the outer circle of the lower end of the punch handle 10 that matches the through hole opened in the punch fixing plate 12 can be replaced by an outer surface structure that matches the through hole with a non-circular cross-section after replacement. This limits the freedom of the punch handle 10 to rotate around its axis, reduces the possibility of force dislocation and rotation around its axis during the die punching process, and improves the stability and accuracy of the force during die punching.

[0056] Embodiment 3

[0057] Refer to the attached Figure 1 To Attachment Figure 3 And attached Figure 5 As shown, the cross-section of the isolation guide stud 55 is non-circular, or the isolation guide stud 55 is replaced by at least two guide shafts with circular cross-sections. The isolation guide stud 55 is slidably connected in the isolation positioning cavity 54. The isolation guide stud 55 limits the freedom of the locking isolation sleeve 50 to rotate around the normal direction of the upper end face of the punch handle 10. A countersunk hole that cooperates with the isolation guide stud 55 is provided in the upper end face of the punch handle 10. The lower end face of the punch body 51 is positioned and fit with the upper surface of the locking isolation sleeve 50 through the guiding action of the isolation guide stud 55. When the locking sleeve connecting shaft 53 locks the punch body 51, the locking isolation sleeve 50 and the punch handle 10 can be kept in a relatively fixed state, thereby reducing the manufacturing and processing accuracy requirements of the punch handle 10, the isolation guide stud 55 and the locking isolation sleeve 50, saving material costs, and further improving the disassembly and maintenance efficiency of the locking isolation sleeve 50.

[0058] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the utility model, and are not intended to limit the implementation methods of the technology of the utility model in any form. Any technical personnel in this field may make slight changes or replace them with other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the utility model, but they should still be regarded as technologies or embodiments that are essentially the same as the utility model.

[0059] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A quick-change hot forging punching punch, comprising a punch handle (10), the lower end of the punch handle (10) being slidably connected to a punch fixing plate (12), the lower end of the punch handle (10) being provided with a supporting bottom plate (13), and a group of uniformly distributed clamping studs (14) being provided in the punch fixing plate (12), characterized in that: The upper end surface of the punch handle (10) is fixedly connected to a locking isolation sleeve (50), the upper end of the locking isolation sleeve (50) is provided with a punch body (51), a sleeve installation cavity (11) is provided in the punch handle (10), a locking sleeve shaft (53) is provided in the sleeve installation cavity (11), a locking power cavity (20) is provided in the supporting base plate (13), and a locking sleeve shaft (53) is slidably connected in the punch body (51).

2. According to the quick-change hot forging punching punch of claim 1, it is characterized in that: A locking sleeve cavity (52) and a locking guide cavity (15) are provided in the male mold body (51); the locking sleeve shaft (53) is slidably connected in the locking guide cavity (15); and a locking power shaft (23) is provided on the lower side of the locking sleeve shaft (53).

3. According to the quick-change hot forging punching punch of claim 2, it is characterized in that: An isolation positioning cavity (54) is provided in the locking isolation sleeve (50), and an isolation guide stud (55) is provided in the isolation positioning cavity (54).

4. According to the quick-change hot forging punching punch of claim 3, it is characterized in that: The lower end of the locking sleeve shaft (53) is slidably connected to a shaft coupling sleeve (57), and the upper end of the locking power shaft (23) is fixedly connected to the shaft coupling sleeve (57).

5. According to the quick-change hot forging punching punch of claim 4, it is characterized in that: The lower end of the locking sleeve shaft (53) is fixedly connected to a shaft coupling stop ear (67), an anti-rotation docking cavity (60) is provided in the shaft coupling sleeve (57), the locking sleeve shaft (53) is slidably connected in the upper end wall of the anti-rotation docking cavity (60), and a shaft coupling passage (66) is provided in the upper end wall of the anti-rotation docking cavity (60).

6. The quick-change hot forging punching punch according to claim 5, characterized in that: The lower end of the anti-rotation docking cavity (60) is rotatably connected to an adjusting mounting plug (59), the upper end surface of the adjusting mounting plug (59) is fixedly connected to an anti-rotation docking spring (58), an anti-rotation slide plate (61) is provided on the upper side of the anti-rotation docking spring (58), the anti-rotation docking cavity (60) is slidably connected to the anti-rotation slide plate (61), the upper end surface of the anti-rotation slide plate (61) is fixedly connected to an anti-rotation block (62), the anti-rotation block (62) is a regular polyhedron structure, and an anti-rotation matching cavity (63) is provided in the lower end surface of the locking sleeve shaft (53).

7. The quick-change hot forging punching punch according to claim 6, characterized in that: A withdrawal hole (56) is provided in the locking sleeve shaft (53), the withdrawal hole (56) is communicated with the anti-rotation matching cavity (63), and a withdrawal control rod (65) is provided in the withdrawal hole (56).

8. The quick-change hot forging punching punch according to claim 7, characterized in that: A piston cylinder (22) is provided in the locking power chamber (20), and the upper end of the piston cylinder (22) is dynamically connected to the locking power shaft (23).

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