Punch switching device free of disassembly and assembly

Abstract

The utility model relates to a dismounting-free punch switching device which comprises a mounting seat, a fixing seat is arranged on the mounting seat, a punch fixing block is slidably connected in the fixing seat, the punch fixing block is connected with a punch through a fixing assembly, a guide groove is formed in the mounting seat, an insertion block is slidably connected in the guide groove, and the insertion block is connected with the punch through a fixing assembly. A spring limiting block is arranged at the end, away from the guide groove, of the fixing base, a spring is arranged in the spring limiting block and arranged on the outer surface of the punch in a sleeving mode, one end of the spring is connected to the inner bottom wall of the through hole, the other end of the spring is connected to the punch fixing block, and when the inserting block abuts against the punch fixing block, the spring is compressed, and the punching part of the punch extends out of the spring limiting block. Under pushing of the spring, horizontal movement of the inserting block is converted into vertical movement of the punch, and therefore rapid switching between punching and non-punching is achieved. The stamping device has the effect of improving the stamping efficiency of the automobile parts.

Description

Technical Field

[0001] This application relates to the technical field of part stamping, and in particular to a punch switching device that does not require disassembly and assembly. Background Art

[0002] The stamping process is an essential process step in the production of automotive parts. A punch is a metal part installed on a stamping die. By applying pressure, holes of a predetermined shape and size are formed in the automotive parts under the action of the punch.

[0003] When stamping automotive parts, automotive parts of the same shape may have different punching requirements due to different usage functions. For example, some parts need to be punched due to connection or heat dissipation requirements, while some parts do not need to be punched due to strength and sealing requirements. Therefore, when stamping automotive parts, workers need to frequently disassemble and assemble the punch. Currently, when workers disassemble the punch, they need to fully open the stamping die and remove all the screws and pins on the punch seat to complete the disassembly of the punch. When the punch needs to be installed, the screws and pins need to be reinstalled. Therefore, the disassembly and assembly process of the punch takes a lot of time for workers, is time-consuming and laborious, which leads to a low stamping efficiency of the parts and has obvious deficiencies. Utility Model Content

[0004] In order to improve the stamping efficiency of automotive parts, this application provides a punch switching device that does not require disassembly and assembly.

[0005] A punch switching device that does not require disassembly and assembly provided by this application adopts the following technical solutions:

[0006] A punch switching device that does not require disassembly and assembly includes a mounting base. A fixed base is provided on the mounting base. A groove is formed in the fixed base. A punch fixing block is slidably connected in the groove. A punch is arranged in the punch fixing block. The punch is connected to the inside of the punch fixing block through a fixing component. A guiding groove is formed in the mounting base. A plug is slidably connected in the guiding groove. A spring limiting block is arranged at one end of the fixed base away from the guiding groove. A through hole communicating with the groove is formed in the spring limiting block. A spring is arranged in the spring limiting block. The spring is sleeved on the outer surface of the punch. One end of the spring is connected to the inner bottom wall of the through hole, and the other end is connected to the punch fixing block. When the plug abuts against the punch fixing block, the spring is compressed, and the punching part of the punch extends out of the spring limiting block.

[0007] By adopting the above technical solution, when the punch is in the punching state, the insertion block abuts against the punch fixing block and applies pressure to the punch fixing block, and the spring is in a compressed state. When punching is not required, the worker pulls the insertion block to disengage it from the punch fixing block. The punch fixing block loses the downward pressure from the insertion block, and the elastic force accumulated by the spring is instantaneously released and pushes the punch fixing block to move upward. When the end face of the punch fixing block abuts against the inner side wall of the guiding groove, the punching part of the punch retracts into the through hole, and the punch cannot punch. By driving the up-and-down movement of the punch through the horizontal movement of the insertion block, rapid switching between punching and non-punching is achieved, avoiding the cumbersome steps of the worker manually disassembling and installing the punch, thereby improving the stamping efficiency of automotive parts.

[0008] Optionally, the fixing assembly includes a cushion block, the cushion block is arranged at one end of the punch fixing block facing the guiding groove, a limiting ring is arranged on the outer surface of the punch, a limiting ring groove slidably matched with the limiting ring is formed on the punch fixing block, and the bottom surface of the cushion block abuts against the top surface of the punch.

[0009] By adopting the above technical solution, under the limitation of the cushion block and the limiting ring groove, the punch is fixed inside the punch fixing block. At the same time, when the punch needs to be replaced due to damage, the worker first removes the cushion block on the punch fixing block, and then pulls the limiting ring upward. The limiting ring drives the punch to move out of the punch fixing block. The setting of the fixing assembly facilitates the worker to disassemble and assemble the punch, improving the convenience of the worker's operation.

[0010] Optionally, a limiting assembly is arranged on the mounting seat. The limiting assembly includes a connecting seat, a fixed inclined block is slidably connected inside the connecting seat, pin holes communicating with each other are formed in the fixed inclined block and the connecting seat, a pin rod is slidably connected in the pin holes, the fixed inclined block is fixed on the connecting seat through the pin rod, and a fixing groove engaged with the fixed inclined block is formed on the insertion block. When the fixed inclined block is engaged in the fixing groove, the insertion block disengages from the punch fixing block.

[0011] By adopting the above technical solution, when the fixing groove on the push rod moves to directly below the fixed inclined block, the worker removes the pin rod to make the fixed inclined block slide downward and engage in the fixing groove, and then installs the pin rod again to prevent the sliding of the fixed inclined block. Under the clamping and fixing of the fixed inclined block and the fixing groove, the insertion block cannot move, effectively avoiding the occurrence of the phenomenon that the insertion block slides due to the worker accidentally touching the insertion block, and ensuring the stability of the non-punching state of the punch.

[0012] Optionally, a limiting groove is formed on the inner side wall of the groove, a limiting block is arranged on the punch fixing block, and the limiting block is slidably connected in the limiting groove, and the limiting groove is vertically arranged.

[0013] By adopting the above technical solution, under the guidance of the limit groove and the limit block, the punch fixing block can only be raised and lowered in the vertical direction along the groove, reducing the occurrence of the punch fixing block being stuck inside the groove due to rotation caused by instantaneous elastic force, and ensuring the smoothness of switching between punching and non-punching states.

[0014] Optionally, a stop plane is provided on the limiting ring, a stop groove is provided at one end of the limiting ring groove close to the stop plane, a stop pin is slidably connected to the stop groove, and the stop pin abuts against the stop plane.

[0015] By adopting the above technical solution, under the restriction of the stop pin and the stop plane, the limit ring cannot rotate in the limit ring groove, thereby avoiding the occurrence of the punch rotating in the punch fixing block and improving the stability of the punch during punching.

[0016] Optionally, the insert block is provided with a guide inclined surface that slides with the cushion block.

[0017] By adopting the above technical solution, under the guidance of the guide bevel, the pad can move downward more smoothly into the groove, thereby further improving the smoothness of the switching between the punching and non-punching states of the punch.

[0018] Optionally, two cover plates are provided on the mounting seat, the two cover plates are provided at both ends of the guide groove, and the insert block is slidably connected to the two cover plates.

[0019] By adopting the above technical solution, the cover plate supports the insert block, thereby reducing the occurrence of the insert block falling out of the guide groove after long-term use.

[0020] Optionally, a plurality of weight-reducing holes are provided on the insert block.

[0021] By adopting the above technical solution, the opening of the weight-reducing hole reduces the weight of the insert body, making the sliding of the insert easier, reducing production costs while also meeting the design requirements of lightweight stamping dies.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application provides an insert and a spring; under the push of the spring, the horizontal movement of the insert is converted into the up and down movement of the punch, thereby achieving rapid switching between punching and non-punching, avoiding the tedious steps of workers manually disassembling and installing the punch, thereby improving the stamping efficiency of automotive parts;

[0024] 2. This application provides a fixed assembly to achieve a detachable connection of the punch inside the punch fixing block, thereby facilitating the disassembly and assembly of damaged punches by workers and improving the convenience of workers' operation;

[0025] 3. By providing a limiting component, the present application effectively avoids the occurrence of the phenomenon that the insertion block slides due to the worker accidentally touching it, ensuring the stability of the state where the punch does not punch holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present application.

[0027] Figure 2 is a sectional view of the guide groove and the mounting seat in an embodiment of the present application.

[0028] Figure 3 is a schematic diagram of the position between the limiting component and the insertion block in an embodiment of the present application.

[0029] Figure 4 is an exploded view of the spacer block, the punch fixing block, and the punch in an embodiment of the present application.

[0030] Figure 5 is a sectional view of the limiting groove in an embodiment of the present application.

[0031] Description of the reference numerals: 1. Mounting seat; 101. Guide groove; 102. Cover plate; 2. Fixed seat; 3. Groove; 31. Limiting groove; 4. Punch fixing block; 41. Limiting ring groove; 411. Anti-rotation groove; 42. Limiting block; 5. Punch; 6. Fixing component; 61. Spacer block; 62. Limiting ring; 621. Anti-rotation plane; 7. Insertion block; 71. Weight-reducing hole; 72. Push rod; 73. Guide inclined surface; 74. Fixed groove; 8. Spring limiting block; 81. Through hole; 82. Spring; 9. Limiting component; 91. Connection seat; 92. Fixed inclined block; 93. Insertion pin rod; 10. Insertion pin hole; 11. Anti-rotation pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following Figures 1-5 further describes the present application in detail.

[0033] The embodiment of the present application discloses a punch switching device that does not require disassembly and assembly.

[0034] Referring to Figure 1 and Figure 2, A punch switching device that does not require disassembly includes a mounting base 1 and a fixing base 2. The mounting base 1 is mounted on the upper die base, and the fixing base 2 is mounted on the bottom surface of the mounting base 1. A groove 3 is provided on the fixing base 2, and a punch fixing block 4 is slidably connected in the groove 3. A punch 5 for punching is provided in the punch fixing block 4. The punch 5 is detachably connected to the inside of the punch fixing block 4 through a fixing component 6. The fixing component 6 includes a cushion block 61 slidably connected inside the groove 3. The cushion block 61 is fixedly connected to one end of the punch fixing block 4 close to the mounting base 1 by screws. A limiting ring 62 is fixedly connected to the outer surface of the punch 5. A limiting ring groove 41 that slidably cooperates with the limiting ring 62 is provided on the punch fixing block 4. The bottom surface of the cushion block 61 is in close contact with the top surface of the punch 5.

[0035] Under the restriction of the cushion block 61 and the limiting ring groove 41, the punch 5 is fixed inside the punch fixing block 4. At the same time, when the punch 5 is damaged and needs to be replaced, the worker first removes the cushion block 61 on the punch fixing block 4, and then pulls up the limiting ring 62. The limiting ring 62 drives the punch 5 to move out of the punch fixing block 4. The setting of the fixing component 6 facilitates the worker to disassemble and assemble the punch 5, improving the convenience of the worker's operation.

[0036] Refer to Figure 2 and Figure 3 , A guiding groove 101 is provided on the bottom surface of the mounting base 1, and a plug block 7 is slidably connected in the guiding groove 101. A plurality of weight-reducing holes 71 for reducing the mass of the plug block 7 itself are provided on the plug block 7. One end of the plug block 7 extending out of the guiding groove 101 is fixedly connected with a push rod 72. A guiding inclined surface 73 that slidably cooperates with the cushion block 61 is provided at one end of the plug block 7 close to the fixing base 2. Two cover plates 102 are fixedly connected to the bottom surface of the mounting base 1. The two cover plates 102 are respectively arranged at both ends of the plug block 7. The plug block 7 is slidably connected to the two cover plates 102. The cover plates 102 are used to support the plug block 7 to prevent the plug block 7 from disengaging from the guiding groove 101, improving the sliding stability of the plug block 7.

[0037] Refer to Figure 2 and Figure 3 , A spring limit block 8 is fixedly connected to one end of the fixing base 2 far from the guiding groove 101. A through hole 81 communicating with the groove 3 is provided on the spring limit block 8. A spring 82 is provided inside the spring limit block 8. In this embodiment, the spring 82 is a rectangular spring. The spring 82 is sleeved on the outer surface of the punch 5. One end of the spring 82 is fixedly connected to the inner bottom wall of the through hole 81, and the other end is connected to the surface of the punch fixing block 4. When the plug block 7 slides to the end side of the guiding groove 101 close to the fixing base 2, the bottom surface of the plug block 7 abuts against the surface of the punch fixing block 4, the spring 82 is compressed, and the punching part of the punch 5 extends out of the spring limit block 8.

[0038] When the punch 5 is in the punching state, the insert block 7 abuts against the punch fixing block 4 and applies pressure to the punch fixing block 4. The punching part of the punch 5 extends out of the spring limiting block 8. At this time, the spring 82 is in a compressed state. When punching is not required, the worker pulls the push rod 72 outwards. The push rod 72 drives the insert block 7 to move away from the guide seat. The insert block 7 gradually disengages from the punch fixing block 4. The pressure on the punch fixing block 4 gradually decreases. The punch fixing block 4 moves upwards towards the guide groove 101 under the push of the elastic force of the spring 82. The movement of the punch fixing block 4 drives the punch 5 to move upwards. When the end face of the punch fixing block 4 abuts against the inner side wall of the guide groove 101, the punching part of the punch 5 retracts into the through hole 81. At this time, the punch 5 cannot perform punching;

[0039] When punching is required again, the worker pushes the push rod 72 inwards. The push rod 72 pushes the insert block 7 towards the fixed seat 2. When the fixed seat 2 contacts the guide inclined surface 73, under the push and guiding action of the guide inclined surface 73, the punch fixing block 4 moves downwards. The punch fixing block 4 drives the punch 5 to extend out of the spring limiting block 8 again. At this time, the punch 5 can perform punching. By driving the up and down movement of the punch 5 through the horizontal movement of the insert block 7, rapid switching between punching and non-punching is realized, avoiding the cumbersome steps of the worker manually disassembling and installing the punch 5, thus improving the stamping efficiency of automotive parts.

[0040] Refer to Figure 2 and Figure 3 For the convenience of fixing the non-punching state of the punch 5, a limiting component 9 is arranged on the outer side wall of the mounting seat 1. The limiting component 9 includes a connecting seat 91 connected to the outer surface of the mounting seat 1 by screws. The connecting seat 91 is arranged at one end far from the guide seat. A fixed inclined block 92 is slidably connected in the connecting seat 91. Insertion holes 10 communicating with each other are formed in the fixed inclined block 92 and the connecting seat 91. A pin rod 93 is slidably connected in the insertion holes 10. The fixed inclined block 92 is fixed to the connecting seat 91 through the pin rod 93. A fixing groove 74 is formed on the insert block 7 and is in clamping fit with the fixed inclined block 92. When the fixed inclined block 92 is clamped in the fixing groove 74, the insert block 7 disengages from the punch fixing block 4.

[0041] When punching is not required, the worker pulls the push rod 72 outwards. When the fixing groove 74 on the push rod 72 moves to directly below the fixed inclined block 92, the worker takes out the pin rod 93. The fixed inclined block 92 slides downwards and is clamped in the fixing groove 74. Then the worker installs the pin rod 93 again to fix the clamping state of the fixed inclined block 92 clamped in the fixing groove 74. Under the clamping and fixing of the fixed inclined block 92 and the fixing groove 74, the insert block 7 cannot move, effectively avoiding the occurrence of the phenomenon that the insert block 7 slides due to the worker accidentally touching the insert block 7, and ensuring the stability of the non-punching state of the punch 5

[0042] Refer to Figure 4 and Figure 5, a rotation - stopping plane 621 is provided on the limiting ring 62. A rotation - stopping groove 411 is provided at one end of the limiting - ring groove 41 close to the rotation - stopping plane 621. A rotation - stopping pin 11 is slidably connected in the rotation - stopping groove 411, and the rotation - stopping pin 11 abuts against the rotation - stopping plane 621. Under the limitation of the rotation - stopping pin 11 and the rotation - stopping plane 621, the limiting ring 62 cannot rotate in the limiting - ring groove 41, thus avoiding the occurrence of the phenomenon that the punch 5 rotates by itself in the punch fixing block 4 and improving the stability of the punch 5 during punching.

[0043] Referring to Figure 4 and Figure 5 , a limiting groove 31 is provided on the inner side wall of the groove 3. The limiting groove 31 is vertically arranged. A limiting block 42 is fixedly connected to the outer surface of the punch fixing block 4, and the limiting block 42 is slidably connected in the limiting groove 31. Under the guiding of the limiting groove 31 and the limiting block 42, the punch fixing block 4 can only move up and down along the groove 3 in the vertical direction, reducing the occurrence of the phenomenon that the punch fixing block 4 is stuck inside the groove 3 due to rotation caused by instantaneous elastic force, and ensuring the smoothness of the switching between the punching and non - punching states.

[0044] The implementation principle of a punch - switching device without disassembly and assembly in an embodiment of the present application is as follows: When punching is not required, a worker pulls the push rod 72 outwards. The push rod 72 drives the insert block 7 to move away from the guiding seat. The insert block 7 gradually disengages from the punch fixing block 4, and the pressure received by the punch fixing block 4 gradually decreases. The punch fixing block 4 moves upwards towards the guiding groove 101 under the pushing force of the spring 82. The movement of the punch fixing block 4 drives the punch 5 to move upwards. When the end face of the punch fixing block 4 abuts against the inner side wall of the guiding groove 101, the punching part of the punch 5 retracts into the through - hole 81. At this time, the punch 5 cannot perform punching.

[0045] When punching is required again, the worker pushes the push rod 72 inwards. The push rod 72 pushes the insert block 7 towards the fixing seat 2. When the fixing seat 2 contacts the guiding inclined plane 73, under the pushing and guiding action of the guiding inclined plane 73, the punch fixing block 4 moves downwards. The punch fixing block 4 drives the punch 5 to extend out of the spring limiting block 8 again. At this time, the punch 5 can perform punching. By driving the up - and - down movement of the punch 5 through the horizontal movement of the insert block 7, rapid switching between punching and non - punching is realized, avoiding the cumbersome steps of manually disassembling and installing the punch 5 by workers, thereby improving the stamping efficiency of automotive parts.

[0046] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A punch switching device that does not require disassembly and assembly, comprising a mounting base (1), characterized in that, A fixing base (2) is provided on the mounting base (1). A groove (3) is formed in the fixing base (2). A punch fixing block (4) is slidably connected in the groove (3). A punch (5) is arranged in the punch fixing block (4). The punch (5) is connected to the inside of the punch fixing block (4) through a fixing component (6). A guiding groove (101) is formed in the mounting base (1). A plug (7) is slidably connected in the guiding groove (101). A spring limiting block (8) is arranged at one end of the fixing base (2) away from the guiding groove (101). A through hole (81) communicating with the groove (3) is formed in the spring limiting block (8). A spring (82) is arranged in the spring limiting block (8). The spring (82) is sleeved on the outer surface of the punch (5). One end of the spring (82) is connected to the inner bottom wall of the through hole (81), and the other end is connected to the punch fixing block (4). When the plug (7) abuts against the punch fixing block (4), the spring (82) is compressed, and the punching part of the punch (5) extends out of the spring limiting block (8).

2. The punch switching device without disassembly and assembly according to claim 1, wherein The fixing component (6) includes a cushion block (61). The cushion block (61) is arranged at one end of the punch fixing block (4) facing the guiding groove (101). A limiting ring (62) is arranged on the outer surface of the punch (5). A limiting ring groove (41) slidably matched with the limiting ring (62) is formed in the punch fixing block (4). The bottom surface of the cushion block (61) abuts against the top surface of the punch (5).

3. The punch switching device without disassembly and assembly according to claim 1, characterized in that A limiting component (9) is arranged on the mounting base (1). The limiting component (9) includes a connecting seat (91). A fixed inclined block (92) is slidably connected in the connecting seat (91). Plug holes (10) communicating with each other are formed in the fixed inclined block (92) and the connecting seat (91). A plug rod (93) is slidably connected in the plug holes (10). The fixed inclined block (92) is fixed to the connecting seat (91) through the plug rod (93). A fixing groove (74) clamped and matched with the fixed inclined block (92) is formed in the plug (7). When the fixed inclined block (92) is clamped in the fixing groove (74), the plug (7) is separated from the punch fixing block (4).

4. The punch switching device without disassembly and assembly according to claim 1, wherein A limiting groove (31) is formed in the inner side wall of the groove (3). A limiting block (42) is arranged on the punch fixing block (4). The limiting block (42) is slidably connected in the limiting groove (31). The limiting groove (31) is vertically arranged.

5. The punch switching device that can be disassembled and assembled without disassembly according to claim 2, characterized in that, A rotation stopping plane (621) is formed in the limiting ring (62). A rotation stopping groove (411) is formed at one end of the limiting ring groove (41) close to the rotation stopping plane (621). A rotation stopping pin (11) is slidably connected in the rotation stopping groove (411). The rotation stopping pin (11) abuts against the rotation stopping plane (621).

6. The punch switching device that can be disassembled and assembled without disassembly according to claim 2, wherein A guiding inclined surface (73) slidably matched with the cushion block (61) is arranged on the plug (7).

7. The punch switching device without disassembly and assembly according to claim 1, characterized in that Two cover plates (102) are arranged on the mounting base (1), and the two cover plates (102) are arranged at both ends of the guiding groove (101), and the insertion block (7) is slidably connected to the two cover plates (102).

8. The punch switching device without disassembly and assembly according to claim 1, characterized in that A plurality of weight reduction holes (71) are formed in the insertion block (7).

Images