A metal strip punching device

Abstract

The present invention belongs to the field of punching holes in metal strips, and particularly relates to a metal strip punching device, which includes a platform, a support plate, spring A, a U-shaped seat, a telescopic rod, spring B, an electric drive module A, a guide seat, an electric drive module B, a sliding seat, an electric drive module C, a hydraulic cylinder, slider B, a punching nail, a pressing block, and spring C. Among them, between two platforms with a certain distance, there are two support plates that support the metal strip in the horizontal direction perpendicular to the metal strip and spring A for resetting the support plates; the present invention clamps and fixes the two ends of the metal strip placed on the two support plates through a pair of U-shaped seats on the platform. At the same time, the ejector rod in the outer sleeve of the U-shaped seat assists in clamping the middle position of the metal strip or wire at uniform intervals, ensuring effective fixing and positioning of the wire or metal strip during punching, and avoiding the reduction of punching quality due to its deviation during punching.

Description

Technical Field

[0001] The present invention belongs to the field of punching holes in metal strips, and particularly relates to a metal strip punching device. Background Art

[0002] During the use of metal wires or metal strips, it is often necessary to punch holes in the metal wires or metal strips.

[0003] Currently, the steps for punching holes in metal wires or metal strips are as follows: 1. Clamp the metal wire or metal strip using a fixture. 2. Use a punching machine to flatten the punching area of the metal strip or metal wire. 3. Punch holes in the flattened area of the metal wire or metal strip by using a hole punching machine. If there are many holes to be punched in the metal strip or metal wire, it is rather cumbersome and has low efficiency to punch holes in the metal strip or metal wire using the above punching method.

[0004] The present invention designs a metal strip punching device to solve the above problems. Summary of the Invention

[0005] To solve the defects in the prior art, the present invention discloses a metal strip punching device, which is implemented by adopting the following technical solutions.

[0006] A metal strip punching device includes a platform, a support plate, spring A, U-shaped seat, telescopic rod, spring B, electric drive module A, guide seat, electric drive module B, sliding seat, electric drive module C, hydraulic cylinder, slider B, punching nail, pressing block, and spring C. Among them, between two platforms with a certain distance, there are two support plates that support the metal strip and spring A for resetting the support plates, which move horizontally in a direction perpendicular to the metal strip; on the two platforms, there are two U-shaped seats that are driven synchronously by electric drive module A and radially clamp and fix the two ends of the metal strip from both sides in a horizontal and opposite or back-to-back manner along the radial direction of the metal strip; in each U-shaped seat, there are a number of telescopic rods that are evenly spaced along the axial direction of the metal strip and can expand and contract along the radial direction of the metal strip, and there is spring B in the telescopic rod for resetting its expansion and contraction; the telescopic rods on the two U-shaped seats correspond one by one and form uniform segmented clamping and fixing of the metal strip along the radial direction of the metal strip.

[0007] Inside the guide seat above the platform, there is a sliding seat that slides horizontally along the axial direction of the metal strip and is driven by electric drive module B. Inside the chute B at the lower end of the sliding seat, there is a slider B that slides vertically. Inside the chute C at the lower end of the slider B, there are two pressing blocks that moderately flatten the punching part of the metal strip and spring C for resetting the pressing blocks, which slide horizontally in a direction perpendicular to the metal strip in an opposite or back-to-back manner; inside the circular groove B at the top of the chute C, there is a punching nail that rotates circumferentially and slides axially and is axially driven by a hydraulic cylinder and circumferentially driven by electric drive module C. The tip of the punching nail cooperates with the inclined surfaces B on the two pressing blocks; there is a structure between the punching nail and the slider B that can synchronously drive the pressing blocks along the axial direction by the punching nail to moderately flatten the metal strip and drive the punching nail to axially punch downward at the flattened part of the metal strip relative to the pressing block after the pressing block flattens the metal strip.

[0008] A pair of telescopic rods corresponding to the punching positions on the metal strip establish transmission with the hydraulic cylinder when the pressing block approaches the metal strip and completely release the clamping of the metal strip before the pressing block meets the metal strip; the two support plates are provided with an inclined surface A for positioning the metal strip and cooperating with the tip of the punching nail.

[0009] As a further improvement of the present technology, the two support plates slide in the slide grooves A of the two platform side walls respectively, and the compression spring A for resetting each support plate is located in the corresponding slide groove A; each U seat is connected with a rack through an L rod, and the two racks are engaged with the gear A installed on the fixed plate of the platform.

[0010] As a further improvement of the present technology, the electric drive module A is installed on the platform, and the screw A that is transmission-connected to the output shaft of the electric drive module A is screwed together with the internal threaded sleeve A on a U-seated seat; the electric drive module B is fixed to the guide seat; the screw B that is rotationally matched with the guide seat and screwed together with the threaded hole on the sliding seat is transmission-connected to the output shaft of the electric drive module B.

[0011] As a further improvement of the present technology, the telescopic rod is composed of an outer sleeve and a top rod which are connected to each other; the compression spring B is located in the outer sleeve and connects the outer sleeve and the top rod; the outer sleeve of the telescopic rod is fixed on the U seat, and a vertical splint that cooperates with the metal bar is installed at the end of the top rod, and the splint has an inclined plate that cooperates with the slider B.

[0012] As a further improvement of the present technology, a slider A driven by a hydraulic cylinder slides vertically in the slide groove B of the slide seat, and a transmission shaft driven by an electric drive module C rotates in the circular groove A at the lower end of the slider A. The transmission shaft is connected to the punching nails installed on the slider B below.

[0013] As a further improvement of the present technology, the gear C installed on the upper end of the transmission shaft meshes with the gear B installed on the output shaft of the electric drive module C in the slider A; the hexagonal head at the lower end of the transmission shaft cooperates with the internal hexagonal groove at the upper end of the punching pin; an internal threaded sleeve B that cooperates with the thread of the punching pin is nested on the transmission shaft, and the internal threaded sleeve cooperates with the annular convexity on the transmission shaft; the side wall of the slide seat has an installation port that is connected to the slide groove B and is used to manually connect the punching pin and the transmission shaft.

[0014] As a further improvement of the present technology, the inner wall of the circular groove B on the slider B has an annular groove A and an annular groove B; the annular groove A is rotatably provided with an annular sleeve that cooperates with the axial sliding of the punching nail, and the annular groove A has a vortex spring for rotationally resetting the annular sleeve; the block C installed on the annular sleeve cooperates with the block B installed on the inner wall of the annular groove A; the two blocks A installed on the punching nail at an interval of 180 degrees respectively cooperate with the two blocks D installed on the inner wall of the annular groove B at an interval of 180 degrees.

[0015] As a further improvement of the present technology, a trapezoidal guide block is provided on the U-shaped seat, and the trapezoidal guide block slides in the trapezoidal guide groove on the platform. Two guide blocks A are symmetrically installed on the ejector rod, and the two guide blocks slide in the two guide grooves A on the inner wall of the outer sleeve respectively. Two guide blocks B are symmetrically installed on the pressing block, and the two guide blocks B slide in the two guide grooves B on the inner wall of the chute C respectively. Two guide blocks C symmetrically installed on the side wall of the ring sleeve slide in the two guide grooves C on the side wall of the punching nail respectively.

[0016] Compared with the traditional metal strip punching equipment, the present invention clamps and fixes the two ends of the metal strip placed on the two support plates through a pair of U-shaped seats on the platform. At the same time, the ejector rod in the outer sleeve on the U-shaped seat assists in clamping the middle position of the metal strip or wire at uniform intervals, ensuring effective fixed positioning of the wire or metal strip during punching, and avoiding the reduction of punching quality due to the deviation of the metal strip or wire during punching.

[0017] When the punching nail on the sliding seat in the present invention punches a certain part of the metal strip or wire, the pair of ejector rods at this part release the auxiliary clamping of the metal strip under the action of the slider B on the sliding seat, realizing the avoidance of the two ejector rods from the two pressing blocks. Then, the two pressing blocks on the sliding seat flatten this part to a certain extent. After flattening a certain part of the metal strip or wire, the punching nail in the slider B effectively punches the flattened part of the metal strip. And the movement of the sliding seat on the guide seat will drive the punching nail to perform efficient multi-position punching on the metal strip as needed, improving the punching efficiency on the metal strip or wire.

[0018] The structure of the present invention is simple and has good use effects. Description of the Drawings

[0019] Figure 1 is the overall schematic diagram of the present invention.

[0020] Figure 2 is the cross-sectional schematic diagram of the present invention in cooperation with the metal strip from two perspectives.

[0021] Figure 3 is the cross-sectional schematic diagram of the transmission cooperation of the slider A, the electric drive module C, the transmission shaft and the punching nail.

[0022] Figure 4 is the cross-sectional schematic diagram of the cooperation of the sliding seat, the slider B, the punching nail and the pressing block.

[0023] Figure 5 is the cross-sectional schematic diagram of the cooperation of the punching nail, the ring sleeve and the slider B.

[0024] Figure 6 is the cross-sectional schematic diagram of the cooperation of the punching nail, the clamping block A, the clamping block D and the slider B.

[0025] Figure 7 It is a schematic cross-sectional view of the transmission cooperation of two support plates.

[0026] Figure 8 It is a schematic cross-sectional view of the sliding seat, slider A and slider B.

[0027] Figure 9 It is a schematic view of the platform.

[0028] Figure 10 It is a schematic view of the cooperation of the U-shaped seat, outer sleeve, ejector rod, clamping plate and inclined plate.

[0029] Figure 11 It is a schematic cross-sectional view of the transmission cooperation between the sliding seat and electric drive module B.

[0030] Names of the reference numerals in the figure: 1. Platform; 2. Slide groove A; 3. Trapezoidal guide groove; 4. Fixed plate; 5. Support plate; 6. Inclined surface A; 7. Spring A; 8. U-shaped seat; 9. Trapezoidal guide block; 10. Internal thread sleeve A; 11. Outer sleeve; 12. Guide groove A; 13. Ejector rod; 14. Guide block A; 15. Clamping plate; 16. Inclined plate; 17. Spring B; 19. Screw rod A; 20. Electric drive module A; 21. L-shaped rod; 22. Rack; 23. Gear A; 24. Guide seat; 25. Electric drive module B; 26. Screw rod B; 27. Sliding seat; 28. Slide groove B; 29. Installation opening; 30. Slider A; 31. Circular groove A; 32. Electric drive module C; 33. Gear B; 34. Gear C; 35. Transmission shaft; 36. Hexagon head; 37. Ring convex; 38. Internal thread sleeve B; 39. Hydraulic cylinder; 40. Slider B; 41. Circular groove B; 42. Ring groove A; 43. Ring groove B; 44. Slide groove C; 45. Guide groove B; 46. Punching nail; 47. Guide groove C; 48. Block A; 49. Ring sleeve; 50. Guide block C; 51. Block B; 52. Block C; 53. Volute spring; 54. Block D; 55. Pressing block; 56. Inclined surface B; 58. Guide block B; 59. Spring C; 60. Metal strip; 61. Telescopic rod. Specific implementation manners

[0031] The attached drawings are all schematic diagrams of the implementation of the present invention for facilitating the understanding of the structural operation principle. The specific product structure and proportional dimensions can be determined according to the use environment in combination with conventional techniques.

[0032] As Figure 1 、 2 、11 shown, it includes platform 1, support plate 5, spring A 7, U-shaped seat 8, telescopic rod 61, spring B 17, electric drive module A 20, guide seat 24, electric drive module B 25, sliding seat 27, electric drive module C 32, hydraulic cylinder 39, slider B 40, punching nail 46, pressing block 55, spring C 59, wherein as Figure 3 、 9As shown in the figure, there are two support plates 5 that support the metal strip 60 and a spring A7 that resets the support plate 5 moving horizontally in a direction perpendicular to the metal strip 60 between two platforms 1 at a certain distance apart; as Figure 1 、 2 、11 shown, there are two U-shaped seats 8 that are driven synchronously by the electric drive module A20 and radially clamp and fix both ends of the metal strip 60 from both sides, moving horizontally in the radial direction of the metal strip 60 on the two platforms 1 either towards or away from each other; as Figure 1 、 2 、10 shown, several telescopic rods 61 that are evenly spaced along the axial direction of the metal strip 60 and expand and contract in the radial direction of the metal strip 60 are installed in each U-shaped seat 8, and there is a spring B17 inside the telescopic rod 61 that resets its expansion and contraction; the telescopic rods 61 on the two U-shaped seats 8 correspond one by one and form uniform segmented clamping and fixing of the metal strip 60 in the radial direction of the metal strip 60.

[0033] As Figure 1 、 2 、11 shown, a sliding seat 27 driven by the electric drive module B25 slides horizontally along the axial direction of the metal strip 60 inside the guide seat 24 above the platform 1; as Figure 2 、 4 、8 shown, a slider B40 slides vertically inside a chute B28 at the lower end of the sliding seat 27, and two pressing blocks 55 that moderately flatten the punching part on the metal strip 60 and a spring C59 that resets the pressing block 55 slide horizontally either towards or away from each other in a direction perpendicular to the metal strip 60 inside a chute C44 at the lower end of the slider B40; as Figure 2 、 3 、8 shown, a punching nail 46 that rotates circumferentially and slides axially inside a circular groove B41 at the top of the chute C44 is axially driven by a hydraulic cylinder 39 and circumferentially driven by the electric drive module C32, and the tip of the punching nail 46 cooperates with the inclined surfaces B56 on the two pressing blocks 55; as Figure 4 、 5 、6 shown, there is a structure between the punching nail 46 and the slider B40 that synchronously drives the pressing block 55 to moderately flatten the metal strip 60 along the axial direction through the punching nail 46 and drives the punching nail 46 to axially punch downwards relative to the pressing block 55 at the flattened part of the metal strip 60 after the pressing block 55 flattens the metal strip 60.

[0034] As Figure 2 shown, a pair of telescopic rods 61 corresponding to the punching part on the metal strip 60 establish a transmission with the hydraulic cylinder 39 during the approach of the pressing block 55 to the metal strip 60 and completely release the clamping of the metal strip 60 before the pressing block 55 meets the metal strip 60; there are inclined surfaces A6 on the two support plates 5 that position the metal strip 60 and cooperate with the tip of the punching nail 46.

[0035] As Figure 2 、 9As shown, the two support plates 5 slide in the chute A2 on the side walls of the two platforms 1 respectively, and the compression spring A7 for resetting each support plate 5 is located in the corresponding chute A2; As Figure 1 、 2 、7 shown, a rack 22 is connected to each U-shaped seat 8 through an L-shaped rod 21, and the two racks 22 are engaged with a gear A23 installed on the fixed plate 4 of the platform 1.

[0036] As Figure 2 、 11 shown, the electric drive module A20 is installed on the platform 1, and the screw A19 drivingly connected to the output shaft of the electric drive module A20 is screwed with an internal thread sleeve A10 on the same U-shaped seat 8; The electric drive module B25 is fixed to the guide seat 24; The screw B26 that is rotationally matched with the guide seat 24 and screwed with the threaded hole on the sliding seat 27 is drivingly connected to the output shaft of the electric drive module B25.

[0037] As Figure 2 、 10 shown, the telescopic rod 61 is composed of an outer sleeve 11 and a top rod 13 that are sleeved with each other; The compression spring B17 is located inside the outer sleeve 11 and connects the outer sleeve 11 and the top rod 13; The outer sleeve 11 of the telescopic rod 61 is fixed to the U-shaped seat 8, and a vertical clamping plate 15 that cooperates with the metal strip 60 is installed at the end of the top rod 13, and an inclined plate 16 that cooperates with the slider B40 is provided on the clamping plate 15.

[0038] As Figure 2 、 3 、8 shown, a slider A30 driven by a hydraulic cylinder 39 slides vertically in the chute B28 of the sliding seat 27, and a transmission shaft 35 driven by an electric drive module C32 is rotationally matched in a circular groove A31 at the lower end of the slider A30, and the transmission shaft 35 is drivingly connected to a punching nail 46 installed on the lower slider B40.

[0039] As Figure 3 、 8 shown, a gear C34 installed at the upper end of the transmission shaft 35 is engaged with a gear B33 installed on the output shaft of the electric drive module C32 inside the slider A30; The hexagonal head 36 at the lower end of the transmission shaft 35 cooperates with the internal hexagonal groove at the upper end of the punching nail 46; An internal thread sleeve B38 that is threadedly matched with the punching nail 46 is nested on the transmission shaft 35, and the internal thread sleeve is matched with a ring protrusion 37 on the transmission shaft 35; An installation port 29 that is communicated with the chute B28 and is used to manually connect the punching nail 46 and the transmission shaft 35 is provided on the side wall of the sliding seat 27.

[0040] As Figure 8 shown, the inner wall of the circular groove B41 on the slider B40 has a ring groove A42 and a ring groove B43; As Figure 4 、 5, as shown in FIGS. 6, a collar 49 that axially slides in cooperation with the punching nail 46 rotates in the annular groove A42, and a volute spring 53 for rotating and resetting the collar 49 is provided in the annular groove A42; a block C52 mounted on the collar 49 cooperates with a block B51 mounted on the inner wall of the annular groove A42; two blocks A48 mounted on the punching nail 46 at 180-degree intervals respectively cooperate with two blocks D54 mounted on the inner wall of the annular groove B43 at 180-degree intervals.

[0041] As Figure 9 , 10 shown, a trapezoidal guide block 9 is provided on the U-shaped seat 8, and the trapezoidal guide block 9 slides in a trapezoidal guide groove 3 on the platform 1. As Figure 2 shown, two guide blocks A14 are symmetrically mounted on the ejector rod 13, and the two guide blocks respectively slide in two guide grooves A12 on the inner wall of the outer sleeve 11. As Figure 2 , 8 shown, two guide blocks B58 are symmetrically mounted on the pressing block 55, and the two guide blocks B58 respectively slide in two guide grooves B45 on the inner wall of the chute C44. As Figure 4 shown, two guide blocks C50 symmetrically mounted on the side wall of the collar 49 respectively slide in two guide grooves C47 on the side wall of the punching nail 46.

[0042] In the present invention, the electric drive module A20, the electric drive module B25, and the electric drive module C32 all adopt existing technologies, and all three are composed of the electric drive module B25, a control unit, and a speed reducer.

[0043] The working process of the present invention: In the initial state, the clamping plates 15 on any pair of ejector rods 13 press against each other, and the two support plates 5 press against each other. All the spring A7, spring B17, and spring C59 are in a compressed state. The slider B40 is completely retracted into the chute B28 on the sliding seat 27, and the block A48 on the punching nail 46 is located above the block D54 in the slider B40 and is axially opposite to the block D54 one by one. The block C52 is in circumferential contact with the block B51, and the volute spring 53 is in a compressed state. The two pressing blocks 55 press against each other laterally, and the pointed end of the punching nail 46 is located above the two pressing blocks 55 and is exactly opposite to the gap between the two pressing blocks 55. The gap between any pair of clamping plates 15 is vertically opposite to the gap between the two support plates 5. The gap between the two pressing blocks 55 is opposite to the gap between the two support plates 5.

[0044] When it is necessary to use the present invention to punch multiple parts of the cylindrical metal bar 60, first start the electric drive module A20. The electric drive module A20 drives the corresponding U-shaped seat 8 to slide on the platform 1 through the screw A19 and the internal thread sleeve A10. This U-shaped seat 8 drives another U-shaped seat 8 to slide synchronously on the platform 1 through the corresponding rack 22, gear A23 and another rack 22, and the two U-shaped seats 8 produce opposite synchronous movements. Each U-shaped seat 8 drives the telescopic rod 61 thereon to move synchronously, and the ejector rods 13 of each pair of telescopic rods 61 move in opposite directions, so as to place the metal bar 60 on the two abutting support plates 5.

[0045] When the distance between the ejector rods 13 of any pair of telescopic rods 61 is greater than the diameter of the metal bar 60, place the metal bar 60 on the two support plates 5, and reverse-start the electric drive module A20. The electric drive module A20 drives the telescopic rods 61 on the two U-shaped seats 8 to move towards each other through a series of transmissions, so that the clamping plates 15 on the ejector rods 13 of any pair of telescopic rods 61 form uniform clamping and positioning at axial intervals at the middle position of the metal bar 60, and finally the two pairs of the two U-shaped seats 8 form relatively stable clamping and positioning at both ends of the metal bar 60. The springs B17 in each pair of telescopic rods 61 are further compressed at the same time, and the metal bar 60 is clamped by the ejector rods 13 of several pairs of telescopic rods 61 and is located on the gap between the two support plates 5.

[0046] Then, start the electric drive module B25. The electric drive module B25 drives the sliding seat 27 to slide along the axis of the metal bar 60 on the guide seat 24 through the screw B26. When the pressing block 55 reaches directly above the two ejector rods 13 at the position on the metal bar 60 where punching is required, stop the operation of the electric drive module B25.

[0047] Start the hydraulic cylinder 39. The hydraulic cylinder 39 drives the slider A30, the transmission shaft 35 on the slider A30 and the electric drive module C32 to move downward. The transmission shaft 35 drives the slider B40 to move synchronously through the punching nail 46, the block A48 and the block D54. The slider B40 drives the two pressing blocks 55 to move towards the metal bar 60 synchronously.

[0048] During the process of the slider B40 driving the pressing block 55 to move downward, the slider B40 first drives the two ejector rods 13 to move in opposite directions through the interaction with the inclined plates 16 on the two lower clamping plates 15, and the two springs B17 are further compressed.

[0049] When the two pressing blocks 55 meet the metal bar 60, the slider B40 ends the interaction with the inclined plate 16 and enters the position between the two clamping plates 15. The two pressing blocks 55 start to flatten the metal bar 60.

[0050] When the two pressing blocks 55 press the metal strip 60 to the required state, start the electric drive module C32. The electric drive module C32 drives the punching nail 46 to rotate by 90 degrees through the gear B33, gear C34, and transmission shaft 35. The punching nail 46 drives the two clamping blocks A48 to be axially staggered from the two clamping blocks D54, the scroll spring 53 is further compressed, and the clamping block B51 is circumferentially separated from the clamping block C52.

[0051] As the hydraulic cylinder 39 continues to operate, the punching nail 46 starts to move downward relative to the slider B40. The sharp corner of the punching nail 46 pushes the two pressing blocks 55 apart from each other through the inclined surface B56 on the pressing block 55, and the two springs C59 are further compressed. The punching nail 46 moves through the two pressing blocks 55 towards the metal strip 60 and finally punches the flattened part on the metal strip 60.

[0052] When the punching nail 46 penetrates the metal strip 60, the sharp corner of the punching nail 46 that continues to move and the inclined surface A6 on the support plate 5 cause the two support plates 5 to open apart from each other, so that the support plate 5 does not interfere with the continued downward movement of the punching nail 46 and still forms a substantial support for the metal strip 60.

[0053] At the same time, the continuous pressing of the pressing block 55 on the flattened part effectively fixes the punching part of the metal strip 60, preventing the flattened part of the metal strip 60 from shifting when the punching nail 46 punches the metal strip 60.

[0054] When the punching nail 46 penetrates the flattened part of the metal strip 60, reverse-start the hydraulic cylinder 39. The hydraulic cylinder 39 drives the punching nail 46 to axially reset away from the metal strip 60 through a series of transmissions. When the punching nail 46 completes the axial reset relative to the slider B40, reverse-start the electric drive module C32. The electric drive module C32 drives the punching nail 46 to rotate reversely by 90 degrees through a series of transmissions, so that the two clamping blocks A48 are repositioned above the two clamping blocks D54, and the clamping block B51 is circumferentially in contact with the clamping block C52 again. When the punching nail 46 disengages from the two pressing blocks 55, the two pressing blocks 5 are instantaneously laterally pressed against each other under the reset action of the spring C59. As the hydraulic cylinder 39 continues to operate, the hydraulic cylinder 39 drives the slider B40 to reset within the slide base 27 through a series of transmissions.

[0055] After the punching nail 46 disengages from the support plate 5, the two support plates 5 are repositioned against each other under the reset action of the spring A7 and finally reset against each other and re-form a support for the entire part of the metal strip 60. After the slider B40 disengages from the inclined plate 16, the ejector rods 13 of the two telescopic rods 61 re-clamp the flattened and punched part on the metal strip 60 under the reset action of the corresponding springs B17.

[0056] Then, start the electric drive module B25 to run. The electric drive module B25 drives the slide block 27 to continue moving upward to the position directly above the two ejector rods 13 at the next punching position of the metal strip 60 through a series of transmissions. The punching of the next position and the reset of the punching nail 46 are exactly the same as the above punching procedure, and will not be elaborated here.

[0057] After the punching of multiple positions on the metal strip 60 is completed and the punching nail 46 is reset, start the electric drive module A20. The electric drive module A20 drives the ejector rods 13 of all the telescopic rods 61 to release the clamping of the metal strip 60 and take out the metal strip 60 through a series of transmissions.

[0058] In summary, the beneficial effects of the present invention are as follows: The present invention clamps and fixes the two ends of the metal strip 60 placed on the two support plates 5 through a pair of U-shaped seats 8 on the platform 1. At the same time, the ejector rods 13 in the outer sleeve 11 on the U-shaped seat 8 assist in clamping the middle position of the metal strip 60 or the metal wire at uniform intervals, ensuring effective fixed positioning of the metal wire or the metal strip 60 during punching, and avoiding the reduction of punching quality due to the offset of the metal strip 60 or the metal wire during punching.

[0059] When the punching nail 46 on the slide block 27 of the present invention punches a certain position on the metal strip 60 or the metal wire, the pair of ejector rods 13 at this position release the auxiliary clamping of the metal strip 60 under the action of the slide block B40 on the slide block 27, realizing the avoidance of the two ejector rods 13 from the two pressure blocks 55. Then, the two pressure blocks 55 on the slide block 27 flatten this position to a certain extent. After flattening a certain position of the metal strip 60 or the metal wire, the punching nail 46 in the slide block B40 effectively punches the flattened position on the metal strip 60. Moreover, the movement of the slide block 27 on the guide block 24 will drive the punching nail 46 to perform efficient multi-position punching on the metal strip 60 as needed, improving the punching efficiency on the metal strip 60 or the metal wire.

Claims

1. A metal strip punching device, Features: It includes a platform, a support plate, a spring A, a U seat, a telescopic rod, a spring B, an electric drive module A, a guide seat, an electric drive module B, a slide seat, an electric drive module C, a hydraulic cylinder, a slider B, a punching nail, a pressure block, and a spring C. Two platforms at a certain distance from each other move in a horizontal direction perpendicular to the metal strip, and there are two support plates that support the metal strip and a spring A that resets the support plates; two platforms move horizontally toward or away from each other along the radial direction of the metal strip, and there are two U seats that are synchronously driven by the electric drive module A and clamp and fix the two ends of the metal strip radially from both sides; each U seat is equipped with a plurality of telescopic rods that are evenly spaced along the axial direction of the metal strip and extend and retract radially along the metal strip, and there are springs B inside the telescopic rods to retract and reset them; the telescopic rods on the two U seats correspond to each other one by one and clamp and fix the metal strip evenly in sections along the radial direction of the metal strip; A slide driven by an electric drive module B slides horizontally along the axial direction of the metal strip in the guide seat above the platform, a slider B slides vertically in a slide groove B at the lower end of the slide, and two pressure blocks that slide horizontally toward or away from each other in a slide groove C at the lower end of the slider B slide horizontally in a direction perpendicular to the metal strip and a spring C that resets the pressure blocks. A punching nail that is axially driven by a hydraulic cylinder and circumferentially driven by the electric drive module C rotates circumferentially and slides axially in a circular groove B at the top of the slide groove C, and the tip of the punching nail cooperates with the inclined surfaces B on the two pressure blocks. A structure exists between the punching nail and the slider B that synchronously drives the pressure blocks axially to flatten the metal strip appropriately, and drives the punching nail to punch downward axially relative to the flattened part of the metal strip by the pressure blocks after the pressure blocks flatten the metal strip. A pair of telescopic rods corresponding to the punching positions on the metal strip establish transmission with the hydraulic cylinder when the pressing block approaches the metal strip and completely release the clamping of the metal strip before the pressing block meets the metal strip; the two support plates are provided with an inclined surface A for positioning the metal strip and cooperating with the tip of the punching nail.

2. A metal strip punching device according to claim 1, Features: The two support plates slide in the slide grooves A of the two platform side walls respectively, and the compression spring A for resetting each support plate is located in the corresponding slide groove A; each U seat is connected with a rack through an L rod, and the two racks are engaged with the gear A installed on the fixed plate of the platform.

3. A metal strip punching device according to claim 1, Features: The electric drive module A is installed on the platform, and the screw A that is transmission-connected to the output shaft of the electric drive module A is screwed together with the internal threaded sleeve A on a U-base; the electric drive module B is fixed to the guide base; the screw B that is rotationally matched with the guide base and screwed together with the threaded hole on the slide base is transmission-connected to the output shaft of the electric drive module B.

4. A metal strip punching device according to claim 1, Features: The telescopic rod is composed of an outer sleeve and a push rod which are connected to each other; the compression spring B is located in the outer sleeve and connects the outer sleeve and the push rod; the outer sleeve of the telescopic rod is fixed on the U seat, and a vertical clamping plate which cooperates with the metal strip is installed at the end of the push rod, and the clamping plate has an inclined plate which cooperates with the slider B.

5. A metal strip punching device according to claim 1, Features: A slider A driven by a hydraulic cylinder slides vertically in the slide groove B of the slide seat, and a transmission shaft driven by an electric drive module C rotates in the circular groove A at the lower end of the slider A. The transmission shaft is connected to the punching nails installed on the slider B below.

6. A metal strip punching device according to claim 5, Features: The gear C installed on the upper end of the transmission shaft meshes with the gear B installed on the output shaft of the electric drive module C in the slider A; the hexagonal head at the lower end of the transmission shaft cooperates with the internal hexagonal groove at the upper end of the punching nail; an internal threaded sleeve B that cooperates with the thread of the punching nail is nested on the transmission shaft, and the internal threaded sleeve cooperates with the annular convexity on the transmission shaft; the side wall of the slide seat has an installation port that is connected to the slide groove B and is used to manually connect the punching nail and the transmission shaft.

7. A metal strip punching device according to claim 1, Features: The inner wall of the circular groove B on the slider B has an annular groove A and an annular groove B; the annular groove A is rotatably provided with an annular sleeve that axially slides with the punching nail, and the annular groove A is provided with a vortex spring that rotates and resets the annular sleeve; The block C installed on the ring sleeve cooperates with the block B installed on the inner wall of the ring groove A; the two blocks A installed on the punching nail at an interval of 180 degrees cooperate with the two blocks D installed on the inner wall of the ring groove B at an interval of 180 degrees.

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