Pipe punching die

Abstract

The utility model provides a pipe punching die which comprises an upper die plate and a lower die plate, an upper die seat plate is arranged on the side, away from the lower die plate, of the upper die plate, and a lower die seat plate is arranged on the side, away from the upper die plate, of the lower die plate. The upper die plate is provided with a feeding groove, the lower die plate is provided with a discharging groove, the upper die plate is connected with a punch and punching needles, and the punching needles are arranged on the two sides of the punch. And a blanking hole is formed in the lower die seat plate and is formed in the lower side of the punch and the punch pin. And two clamping devices are arranged on the top surface of the lower mold seat plate and are respectively arranged on two sides of the lower mold plate. The upper die plate is provided with an upper groove. The lower die plate is provided with a lower groove, and the upper groove and the lower groove are correspondingly arranged up and down. And the clamping device extends into a cavity formed by the upper groove and the lower groove. The pipe material is clamped and fixed, manual participation is not needed, dangerousness is reduced, the stability of the punching process is improved, and the quality of punched parts is improved. Stripping can be completed by means of gravity transformation of the pipes, a stripping mechanism is not needed, the die is simplified, and the stability of the die is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production and processing, and specifically relates to a pipe punching die. Background Art

[0002] In metal processing, cutting pipes into required sizes according to specific lengths is mainly done by punching machines and specially designed molds. This technology can efficiently cut metal pipes into specific shapes, has high production efficiency, and is suitable for mass production. During the punching process, the metal pipe is placed on the lower die, and the upper die is lowered to use the punch to cut and separate the metal pipe. In this process, the metal pipe is long, and workers need to manually fix the metal pipe on the lower die until the punching is completed. During the punching process, it is dangerous for workers to hold the metal pipe, which can easily cause personal injury. In addition, manual positioning has poor stability, which can easily lead to quality problems and low efficiency, and is not suitable for mass production needs.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a tube punching die, which automatically clamps the tube for punching, and automatically blanks after punching. The overall structure is simple, which reduces the labor intensity of workers, avoids personal injury, and improves production automation.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a tube punching die, including an upper die plate, and a lower die plate arranged adjacent to the upper die plate. The upper die plate is provided with an upper die seat plate on the side away from the lower die plate, and the lower die plate is provided with a lower die seat plate on the side away from the upper die plate. The upper die plate is provided with an upper material trough, and the lower die plate is provided with a lower material trough corresponding to the upper material trough. The upper die plate is connected with a punch and a punch needle, and the punch needle is arranged on both sides of the punch. The lower die seat plate is provided with a blanking hole, and the blanking hole is arranged on the lower side of the punch and the punch needle. A clamping device is provided on the top surface of the lower die seat plate, and two clamping devices are provided, and the clamping devices are respectively arranged on both sides of the lower die plate. The upper die plate is provided with an upper groove, and the upper groove is arranged perpendicular to the upper material trough. The lower die plate is provided with a lower groove, and the upper groove and the lower groove are arranged correspondingly up and down. The clamping device extends into the cavity formed by the upper groove and the lower groove. When the mold is closed, the tube material is placed in the lower material trough, the punch and the punch needle extend into the blanking hole, and the two clamping devices clamp the two ends of the tube material. During the punching process, the tube material is placed in the feed trough, and the clamping device is started. The clamping device clamps and fixes the two ends of the tube material through the channel formed by the upper groove and the lower groove. The punch press is started, the upper die plate moves downward, the punch and the punch needle squeeze the tube material, the punch flattens the tube material, the punch and the punch needle continue to move, the punch breaks the tube material, the punch needle punches a hole in the flattened tube material, and the punching is completed. The clamping device releases the clamping state. At this time, the tube material broken into two sections falls into the material frame from both sides of the mold due to the change in the center of gravity. The utility model fixes the tube material by the clamping device arranged on both sides of the lower mold plate, and no manual participation is required throughout the process, which reduces the danger. In addition, the clamping device clamps and fixes the tube material to the feed trough, which improves the stability of the workpiece and the quality of the punched parts. During the punching process, the material can be removed by relying on the change in the gravity of the tube material, without the need for a material removal mechanism, which simplifies the mold components and improves the stability of the mold.

[0006] Furthermore, in the above-mentioned pipe punching die, the clamping device includes an L-shaped base plate, the L-shaped base plate has an L-shaped cross section, the horizontal end of the L-shaped base plate is fixedly connected to the top surface of the lower template, the vertical end of the L-shaped base plate is connected to a cylinder, the cylinder body is connected to the side of the vertical end of the L-shaped base plate away from the lower template, the cylinder shaft passes through a through hole provided at the vertical end of the L-shaped base plate, the cylinder shaft extends into the lower groove, the cylinder shaft is movably connected to a clamping block, a guide block is provided at the lower side of the clamping block, and the guide block is connected to the lower template. The clamping block is provided in the groove provided by the guide block, and the clamping block slides along the guide block. During the clamping process, the cylinder extends the cylinder shaft, and the cylinder shaft pushes the clamping block to move in the direction of the lower trough until the clamping block is opposite to the lower trough to form extrusion. Since the clamping devices are respectively provided on both sides of the lower template, the clamping devices on both sides work simultaneously, and the clamping blocks squeeze both sides of the pipe material at the same time, thereby fixing the pipe material.

[0007] Furthermore, in the above-mentioned tube punching die, the L-shaped base plate is in the shape of a long strip, and two cylinders are arranged along the L-shaped base plate, and the cylinders are arranged at both ends of the feeding trough. The clamping device is provided with two cylinders, and the two cylinders push the clamping blocks to squeeze the two ends of the tube material in the feeding trough respectively, thereby improving the stability of the tube material during the punching process, and thus improving the quality of the product.

[0008] Furthermore, in the above-mentioned tube punching die, the cross section of the clamping block is an inverted T-shaped, and the groove provided on the guide block is an inverted T-shaped groove corresponding to the clamping block. The inverted T-shaped clamping block is in the inverted T-shaped guide groove, which improves the stability of the clamping and the punching quality.

[0009] Furthermore, in the above-mentioned tube punching die, the top surface of the lower die plate is connected to an elastic trigger rod, the bottom surface of the upper die plate is connected to a push rod, and the push rod and the elastic trigger rod are coaxially arranged. When the die is closed, the push rod squeezes the elastic trigger rod, triggering the elastic trigger rod, and the elastic trigger rod sends a signal to the control system. The control system receives the signal and controls the clamping device to release the clamping state, and the punch press returns to complete the unloading.

[0010] Furthermore, in the above-mentioned tube punching die, a stop plate is provided between the upper die plate and the upper die base plate, the stop plate is connected to the upper die plate, a pad is provided between the stop plate and the upper die base plate, the pad is connected to the upper die base plate, a fixing plate is provided between the pad and the stop plate, the fixing plate is connected to the pad. A lower pad is provided between the lower die plate and the lower die base plate, the lower pad is connected to the lower die base plate.

[0011] Furthermore, in the above-mentioned tube punching die, the top surface of the stop plate is connected to a guide sleeve, the guide sleeve passes through the through holes provided in the pad plate and the fixed plate, and a spring is connected inside the guide sleeve, and the above-mentioned spring forms an extrusion on the bottom surface of the upper die base plate. Before the punching starts, the upper die plate and the lower die plate are separated, and the spring in the guide sleeve pushes the stop plate and the fixed plate away. During the punching process, the upper die plate and the lower die plate first contact, and then the upper table of the punch press continues to move downward, and the fixed plate and the stop plate contact, and the punching is completed.

[0012] Furthermore, in the above-mentioned tube punching die, the upper die plate is provided with an upper die core, the punch and the punch needle pass through the upper die core, and the punch and the punch needle abut against the pad.

[0013] Furthermore, in the above-mentioned tube punching die, in order to facilitate the replacement of the blanking hole and improve the adaptability of the equipment, the lower template is provided with a lower die core, and the blanking hole is provided in the lower die core.

[0014] Furthermore, in the above-mentioned tube punching die, in order to avoid crushing the tube, a clamping portion is provided on one side of the clamping block close to the feed chute, and the clamping portion is arc-shaped.

[0015] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the utility model tube punching die does not require manual participation during the punching process, which reduces the risk, and the clamping device clamps the tube material to fix the tube material, which improves the stability of the punching process and the quality of the punched parts. During the punching process, the tube material can be removed by gravity, and no stripping mechanism is required, which simplifies the die and improves the stability of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the tube punching die of the utility model;

[0017] Figure 2 It is a top view of the tube punching die of the utility model;

[0018] Figure 3 for Figure 2 The AA section view is shown;

[0019] Figure 4 It is a schematic structural diagram of the clamping device.

[0020] In the figure: 1. upper template, 11. punch, 12. punch needle, 13. upper groove, 14. upper material trough, 15. ejector pin, 16. upper die core, 2. lower template, 21. lower groove, 22. lower material trough, 23. elastic trigger rod, 24. lower die core, 3. upper die base plate, 4. lower die base plate, 41. blanking hole, 42. clamping device, 421. L-shaped base plate, 422. cylinder, 423. clamping block, 424. guide block, 5. stop plate, 6. pad, 7. fixing plate, 71. guide sleeve, 8. lower pad. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1-3The tube punching die shown in the figure comprises an upper die plate 1 and a lower die plate 2 arranged adjacent to the upper die plate 1. An upper die base plate 3 is provided on the side of the upper die plate 1 away from the lower die plate 2, and a lower die base plate 4 is provided on the side of the lower die plate 2 away from the upper die plate 1. A stop plate 5 is provided between the upper die plate 1 and the upper die base plate 3, and the stop plate 5 is connected to the upper die plate 1. A pad 6 is provided between the stop plate 5 and the upper die base plate 3, and the pad 6 is connected to the upper die base plate 3. A fixing plate 7 is provided between the pad 6 and the stop plate 5, and the fixing plate 7 is connected to the pad 6. A lower pad 8 is provided between the lower die plate 2 and the lower die base plate 4, and the lower pad 8 is connected to the lower die base plate 4. The upper die plate 1 is provided with an upper material groove 14, and the lower die plate 2 is provided with a lower material groove 22 corresponding to the upper material groove 14. The upper die plate 1 is connected with a punch 11 and a punch needle 12, and the punch needle 12 is provided on both sides of the punch 11. In order to facilitate the replacement of the punch 11 and the punch needle 12, the upper template 1 is provided with an upper die core 16, and the punch 11 and the punch needle 12 pass through the upper die core 16, and the punch 11 and the punch needle 12 abut against the pad 6. The lower die base plate 4 is provided with a blanking hole 41, and the blanking hole 41 is arranged on the lower side of the punch 11 and the punch needle 12. In order to facilitate the replacement of the blanking hole 41, the lower template 2 is provided with a lower die core 24, and the blanking hole 41 is arranged in the lower die core 24. The top surface of the lower die base plate 4 is provided with a clamping device 42, and two clamping devices 42 are provided, and the clamping devices 42 are respectively arranged on both sides of the lower template 2. The upper template 1 is provided with an upper groove 13, and the upper groove 13 is arranged perpendicular to the upper groove 14. The lower template 2 is provided with a lower groove 21, and the upper groove 13 and the lower groove 21 are arranged correspondingly up and down. The clamping device 42 extends into the cavity formed by the upper groove 13 and the lower groove 21. When the mold is closed, the pipe material is placed in the feed trough 22, the punch 11 and the punch needle 12 extend into the feed hole 41, and the two clamping devices 42 clamp the two ends of the pipe material. The top surface of the lower mold plate 2 is connected to the elastic trigger rod 23, and the bottom surface of the upper mold plate 1 is connected to the push rod 15. The push rod 15 and the elastic trigger rod 23 are coaxially arranged. The top surface of the stop plate 5 is connected to the guide sleeve 71, which passes through the through holes provided in the pad plate 6 and the fixing plate 7. A spring is connected inside the guide sleeve 71, and the above spring forms an extrusion on the bottom surface of the upper mold base plate 3.

[0023] Before punching begins, the upper mold plate 1 and the lower mold plate 2 are separated, and the spring in the guide sleeve 71 pushes the stop plate 5 and the fixed plate 7 apart. During the punching process, the tube material is placed in the feed trough 22, and the clamping device 42 is started. The clamping device 42 clamps and fixes the two ends of the tube material through the channel formed by the upper groove 13 and the lower groove 21. The punch press is started, the upper die plate 3 moves downward, the upper mold plate 1 and the lower mold plate 2 first contact, and then the upper table of the punch press continues to move downward, the punch 11 and the punch needle 12 squeeze the tube material, the punch 11 flattens the tube material, the punch 11 and the punch needle 12 continue to move, the punch 11 breaks the tube material, the punch needle 12 punches holes in the flattened tube material, the fixed plate 7 and the stop plate 5 contact, the punching is completed, and the waste material falls out of the blanking hole. At this time, the push rod 15 squeezes the elastic trigger rod 23, triggering the elastic trigger rod 23, and the elastic trigger rod 23 sends a signal to the control system. The control system receives the signal, and the control system controls the clamping device 42 to release the clamping state, and the punch press returns. At this time, the pipe material broken into two sections falls into the material frame from both sides of the mold due to the change of the center of gravity.

[0024] like Figure 3-4 The shown pipe punching die, the clamping device 42 includes an L-shaped base plate 421, the L-shaped base plate 421 is in the shape of a long strip, the cross section of the L-shaped base plate 421 is L-shaped, the horizontal end of the L-shaped base plate 421 is fixedly connected to the top surface of the lower template 2, the vertical end of the L-shaped base plate 421 is connected to a cylinder 422, two cylinders 422 are provided along the L-shaped base plate 421, and the cylinder 422 is provided at both ends of the material discharge trough 22. The cylinder body of the cylinder 422 is connected to the side of the vertical end of the L-shaped base plate 421 away from the lower template 2, the cylinder shaft of the cylinder 422 passes through the through hole provided at the vertical end of the L-shaped base plate 421, the cylinder shaft of the cylinder 422 extends into the lower groove 21, the cylinder shaft of the cylinder 422 is movably connected to a clamping block 423, a guide block 424 is provided at the lower side of the clamping block 423, and the guide block 424 is connected to the lower template 2. The cross section of the clamping block 423 is inverted T-shaped, and the groove provided on the guide block 424 is inverted T-shaped corresponding to the clamping block 423. The clamping block 423 slides in the groove of the guide block 424. In order to avoid crushing the pipe material, the clamping block 423 is provided with a clamping portion 4231 near the side of the feed chute 22, and the clamping portion 4231 is arc-shaped.

[0025] During the clamping process, the cylinder extends the cylinder shaft, and the cylinder shaft pushes the clamping block 423 to move toward the lower material trough 22 until the clamping block 423 is opposite to the lower material trough 22 to form an extrusion. Since the clamping devices 42 are respectively provided on both sides of the lower template 2, the clamping devices 42 on both sides work simultaneously, and the clamping block 423 squeezes both sides of the pipe material at the same time, thereby fixing the pipe material. When the mold is closed, the punching is completed at this time, and the unloading is completed.

[0026] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A tube punching die, characterized in that: The invention comprises an upper template (1) and a lower template (2) arranged adjacent to the upper template (1); an upper template base plate (3) is provided on the side of the upper template (1) away from the lower template (2); and a lower template base plate (4) is provided on the side of the lower template (2) away from the upper template (1); the upper template (1) is provided with an upper material groove (14), and the lower template (2) is provided with a lower material groove (22) corresponding to the upper material groove (14); the upper template (1) is connected to a punch (11) and a punch needle (12), and the punch needle (12) is arranged on both sides of the punch (11); the lower template base plate (4) is provided with a blanking hole (41), and the blanking hole (41) is arranged on the lower side of the punch (11) and the punch needle (12); the lower template base plate ( 4) A clamping device (42) is provided on the top surface, and two clamping devices (42) are provided. The clamping devices (42) are respectively arranged on both sides of the lower template (2); the upper template (1) is provided with an upper groove (13), and the upper groove (13) is arranged perpendicular to the upper material groove (14); the lower template (2) is provided with a lower groove (21), and the upper groove (13) and the lower groove (21) are arranged correspondingly up and down; the clamping device (42) extends into the cavity formed by the upper groove (13) and the lower groove (21); when the mold is closed, the tube material is placed in the lower material groove (22), the punch (11) and the punch needle (12) extend into the blanking hole (41), and the clamping device (42) clamps the two ends of the tube material.

2. The tube punching die according to claim 1, characterized in that: The clamping device (42) comprises an L-shaped base plate (421), the L-shaped base plate (421) has an L-shaped cross section, the horizontal end of the L-shaped base plate (421) is fixedly connected to the top surface of the lower template (2), the vertical end of the L-shaped base plate (421) is connected to a cylinder (422), the cylinder body of the cylinder (422) is connected to the side of the vertical end of the L-shaped base plate (421) away from the lower template (2), and the cylinder shaft of the cylinder (422) passes through the L-shaped base plate (42 1) A through hole is provided at the vertical end, the cylinder shaft of the cylinder (422) extends into the lower groove (21), the cylinder shaft of the cylinder (422) is movably connected with a clamping block (423), a guide block (424) is provided at the lower side of the clamping block (423), and the guide block (424) is connected to the lower template (2); the clamping block (423) is arranged in the groove provided in the guide block (424), and the clamping block (423) slides along the guide block (424).

3. The tube punching die according to claim 2, characterized in that: The L-shaped substrate (421) is in the shape of a long strip, and two cylinders (422) are provided along the L-shaped substrate (421). The cylinders (422) are provided at both ends of the material discharge trough (22).

4. The tube punching die according to claim 2, characterized in that: The cross section of the clamping block (423) is in an inverted T shape, and the groove provided on the guide block (424) is in an inverted T shape corresponding to the clamping block (423).

5. The tube punching die according to claim 1, characterized in that: The top surface of the lower mold plate (2) is connected to an elastic trigger rod (23), the bottom surface of the upper mold plate (1) is connected to a push rod (15), and the push rod (15) and the elastic trigger rod (23) are coaxially arranged; when the mold is closed, the push rod (15) presses the elastic trigger rod (23).

6. The tube punching die according to claim 1, characterized in that: A stop plate (5) is provided between the upper mold plate (1) and the upper mold base plate (3), the stop plate (5) being connected to the upper mold plate (1), a pad (6) is provided between the stop plate (5) and the upper mold base plate (3), the pad (6) being connected to the upper mold base plate (3), a fixing plate (7) is provided between the pad (6) and the stop plate (5), the fixing plate (7) being connected to the pad (6); a lower pad (8) is provided between the lower mold plate (2) and the lower mold base plate (4), the lower pad (8) being connected to the lower mold base plate (4).

7. The tube punching die according to claim 6, characterized in that: The top surface of the stop plate (5) is connected to a guide sleeve (71), the guide sleeve (71) passes through through holes provided in the backing plate (6) and the fixing plate (7), and a spring is connected inside the guide sleeve (71), the spring exerts pressure on the bottom surface of the upper die seat plate (3).

8. The tube punching die according to claim 1, characterized in that: The upper mold plate (1) is provided with an upper mold core (16), the punch (11) and the punch needle (12) pass through the upper mold core (16), and the punch (11) and the punch needle (12) abut against the pad (6).

9. The tube punching die according to claim 1, characterized in that: The lower mold plate (2) is provided with a lower mold core (24), and the blanking hole (41) is provided in the lower mold core (24).

10. The tube punching die according to claim 2, characterized in that: The clamping block (423) is provided with a clamping portion (4231) on one side close to the material discharge chute (22), and the clamping portion (4231) is arc-shaped.

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