Metal processing equipment

Abstract

The present invention belongs to the field of metal strip processing, and in particular relates to a metal processing device, which includes a workbench, a support plate, a spring A, a sleeve, a push rod, a spring B, a spring C, a guide seat, a slide, a pressure block, a punching pin, a spring D, a hydraulic cylinder, and a motor. Two workbench spaces are spaced apart and move toward or away from each other in a horizontal direction perpendicular to the metal strip. There are two support plates connected to each other in a synchronous transmission and supporting the metal strip, and a spring A for resetting the support plates. After a certain portion of the metal strip or wire is flattened to a certain extent, the punching pins in the slide effectively punch the flattened portion of the metal strip or wire. Furthermore, the movement of the slide on the guide seat drives the punching pins to efficiently punch multiple holes in the metal strip or wire as needed, thereby improving the efficiency of punching multiple holes in the metal strip or wire.

Description

Technical Field

[0001] The invention belongs to the field of metal strip processing, and in particular relates to metal processing equipment. Background Art

[0002] Metal processing equipment includes lathes, milling machines, boring machines, etc., which can be used to process various metal parts. However, for metal wires or metal strips, it is often necessary to punch holes in the metal wires or metal strips during use.

[0003] Traditionally, the metal wire or metal strip is first clamped with a clamp, then the punching area of ​​the metal strip or metal wire is flattened with a punching machine, and finally the flattened area on the metal wire or metal strip is punched with a punching machine.

[0004] The above-mentioned method of punching holes in metal strips or metal wires does not affect efficiency when the number of holes to be punched is small. However, if a large number of holes need to be punched in the metal strips or metal wires, the above-mentioned method of punching holes in the metal strips or metal wires is relatively complicated and inefficient.

[0005] The present invention provides a metal processing device for realizing efficient multi-position punching on a metal strip or a metal wire. Summary of the Invention

[0006] In order to solve the above-mentioned defects in the prior art, the present invention discloses a metal processing equipment, which is implemented by adopting the following technical solutions.

[0007] A metal processing equipment, which includes a workbench, a support plate, a spring A, a sliding sleeve, a push rod, a spring B, a spring C, a guide seat, a sliding seat, a pressure block, a punching nail, a spring D, a hydraulic cylinder, and a motor. Two workbenchs at a certain distance from each other move toward or away from each other in a horizontal direction perpendicular to a metal bar. There are two support plates that are synchronously connected to each other and support the metal bar, and a spring A for resetting the support plates; a plurality of pairs of sliding sleeves are installed on the two workbench to be evenly spaced along the axial direction of the metal bar, each pair of sliding sleeves moves toward or away from each other in a horizontal direction perpendicular to the metal bar and are synchronously connected to each other, and the workbench has a spring C for resetting the sliding sleeves; each sliding sleeve has a push rod that slides horizontally along the radial direction of the metal bar and is installed with a spring B for resetting the push rod; each pair of push rods clamps and fixes the metal bar on the support plate from both sides.

[0008] A slide driven by a motor slides horizontally along the axis of the metal bar in the guide seat above the workbench, a pressure block slides vertically in the slide groove B at the lower end of the slide to flatten the punched part of the metal bar, a punching nail driven by a hydraulic cylinder slides vertically in the slide groove C in the middle of the pressure block and is equipped with a spring D to reset the relative movement of the two; a pair of push rods corresponding to the punched parts of the metal bar establish transmission with the hydraulic cylinder when the pressure block approaches the metal bar and completely release the clamping of the metal bar before the pressure block meets the metal bar; the two support plates establish transmission with the hydraulic cylinder when the pressure block flattens the metal bar and move away from each other when the pressure block stops moving to allow the punching nail to pass vertically.

[0009] As a further improvement of the present technology, the two support plates slide in the slide grooves A of the two workbench side walls respectively, and the springs A for resetting each support plate are located in the corresponding slide grooves A respectively; a rack A is installed on each support plate, and the two racks A are engaged with the gear A on the fixed plate between the two workbenches; each sliding sleeve is connected to a rack B through a U-shaped connecting rod B, and the two racks B on each pair of sliding sleeves are engaged with the gear B on the fixed plate.

[0010] As a further improvement of the present technology, the motor is fixed on the guide seat; the screw on the guide seat is rotatably matched with the sliding seat thread; the screw is transmission-connected to the output shaft of the motor.

[0011] As a further improvement of the present technology, the rack C installed on the punching nail meshes with the gear C installed in the slide; the gear D coaxial with the gear C meshes with the rack D that slides vertically in the slide, and the rack D is driven by a hydraulic cylinder; the rack D is connected to a telescopic rod A and two telescopic rods B through two connecting rods C; the telescopic rod A has a spring E for vertically telescoping and resetting it, and the telescopic rod B has a spring F for vertically telescoping and resetting it; the two telescopic rods A correspond one-to-one with the two oblique rods on any pair of top rods; the two telescopic rods B correspond one-to-one with the oblique plates on each support plate connected by the connecting rod A; and each end of the top rod has a splint that cooperates with the metal bar.

[0012] As a further improvement of the present technology, the transmission ratio between gear C and gear D is greater than 1.

[0013] As a further improvement of the present technology, the telescopic rod A is composed of an outer sleeve A and an inner rod A that are connected to each other; the compression spring E for telescopic rod A is located inside the outer sleeve A and connects the outer sleeve A and the inner rod A; the telescopic rod B is composed of an outer sleeve B and an inner rod B that are connected to each other; the compression spring F for telescopic rod B is located inside the outer sleeve B and connects the outer sleeve B and the inner rod B.

[0014] As a further improvement of the present technology, the lower end of the pressing block has two transition slopes for preventing local breakage of the metal strip during the process of flattening the metal strip.

[0015] As a further improvement of the present technology, the sliding sleeve is provided with a trapezoidal guide block, which slides in a trapezoidal guide groove on the workbench. The two guide blocks A symmetrically mounted on the top rod slide in the two guide grooves A on the inner wall of the corresponding sliding sleeve respectively. The two guide blocks B symmetrically mounted on the inner rod A slide in the two guide grooves B on the inner wall of the outer sleeve A respectively. The two guide blocks C symmetrically mounted on the inner rod B slide in the two guide grooves C on the inner wall of the outer sleeve B respectively. The pressure block is provided with two guide blocks D, which slide in the two guide grooves D on the inner wall of the slide groove B respectively. The connecting rod B slides in the guide sleeve on the workbench, and the spring D nested in the punching nail is located in the annular groove on the inner wall of the slide groove C. One end of the spring D is connected to the inner wall of the annular groove, and the other end is connected to the compression spring ring on the punching nail.

[0016] Compared with traditional metal bar drilling equipment, the present invention uses several pairs of push rods on two workbenches to clamp the metal bars or metal wires placed on two support plates at even intervals along the longitudinal direction, ensuring that the metal wires or metal bars are effectively fixed and positioned during punching, avoiding the deviation of cylindrical metal bars or metal wires during punching, thereby reducing the punching quality.

[0017] When the punching target on the slide of the present invention is drilling a hole in a certain area of ​​the metal bar or wire, the pair of push rods at that area, through the interaction between the two telescopic rods A on the slide and the inclined rods on the push rods, release the clamping force on the area of ​​the metal bar or wire to be punched, allowing the two push rods at the punching area of ​​the metal bar or wire to avoid the pressure block. The pressure block on the slide flattens the area that has lost the clamping force of the two push rods to a certain extent. After the area of ​​the metal bar or wire is flattened to a certain extent, the punching target on the slide effectively punches the flattened area of ​​the metal bar or wire. The movement of the slide on the guide seat also drives the punching needle to efficiently punch multiple holes in the metal bar or wire as needed, thereby improving the efficiency of punching multiple holes in the metal bar or wire.

[0018] The invention has a simple structure and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a cross-sectional diagram of the cooperation among the pressing block, punching nail and hydraulic cylinder transmission.

[0021] Figure 3 It is a cross-sectional schematic diagram of the present invention in conjunction with a metal strip.

[0022] Figure 4 2. It is a cross-sectional schematic diagram of telescopic rod A and telescopic rod B.

[0023] Figure 5It is a cross-sectional diagram of the slide drive structure.

[0024] Figure 6 It is a schematic diagram of the transmission coordination of the two support plates.

[0025] Figure 7 It is a schematic diagram of the transmission connection between two connecting rods B.

[0026] Figure 8 This is a schematic diagram of the workbench.

[0027] Figure 9 This is a schematic diagram of the slide.

[0028] Figure 10 It is a cross-sectional schematic diagram of the pressure block from two perspectives.

[0029] Names of the reference numerals in the figure: 1. workbench; 2. slideway A; 3. trapezoidal guide groove; 4. fixed plate; 5. support plate; 6. spring A; 7. rack A; 8. gear A; 9. connecting rod A; 10. inclined plate; 11. sliding sleeve; 12. guide groove A; 13. ejector rod; 14. guide block A; 15. clamping plate; 16. spring B; 17. trapezoidal guide block; 18. connecting rod B; 19. rack B; 20. gear B; 21. spring C; 22. guide sleeve; 23. inclined rod; 24. guide seat; 25. slide seat; 26. slideway B; 27. guide groove D; 28. pressure block; 29. ​​sliding Groove C; 30. Ring groove; 31. Transition slope; 32. Guide block D; 33. Punch nail; 34. Compression spring ring; 35. Spring D; 36. Rack C; 37. Gear C; 38. Gear D; 39. Rack D; 40. Hydraulic cylinder; 41. Connecting rod C; 42. Telescopic rod A; 43. Outer sleeve A; 44. Guide groove B; 45. Inner rod A; 46. Guide block B; 47. Spring E; 48. Telescopic rod B; 49. Outer sleeve B; 50. Guide groove C; 51. Inner rod B; 52. Guide block C; 53. Spring F; 54. Screw; 55. Motor; 56. Metal strip. DETAILED DESCRIPTION

[0030] The accompanying drawings are schematic diagrams of the present invention to facilitate understanding of the structural operation principle. The specific product structure and proportional dimensions can be determined according to the use environment and conventional technology.

[0031] like Figure 1 、 3 As shown, it includes a workbench 1, a support plate 5, a spring A6, a sliding sleeve 11, a push rod 13, a spring B16, a spring C21, a guide seat 24, a slide seat 25, a pressure block 28, a punching nail 33, a spring D35, a hydraulic cylinder 40, and a motor 55, wherein Figure 3 、 8As shown, there are two workbenches 1 at a certain distance from each other, which move toward or away from each other in a horizontal direction perpendicular to the metal strip 56. There are two support plates 5 that are synchronously connected to each other and support the metal strip 56, and a spring A6 that resets the support plates 5; Figure 1 、 3 As shown, a plurality of pairs of sliding sleeves 11 evenly spaced along the axial direction of the metal strip 56 are installed on the two workbenches 1. Each pair of sliding sleeves 11 moves toward or away from each other in a horizontal direction perpendicular to the metal strip 56 and is synchronously connected to each other. The workbench 1 is provided with a spring C21 for resetting the sliding sleeves 11. A push rod 13 is provided in each sliding sleeve 11 to slide horizontally along the radial direction of the metal strip 56 and is provided with a spring B16 for resetting the push rod 13. Each pair of push rods 13 clamps and fixes the metal strip 56 on the support plate 5 from both sides.

[0032] like Figure 5 As shown, a slide 25 driven by a motor 55 slides horizontally along the axial direction of the metal strip 56 in the guide seat 24 above the workbench 1; Figure 2 、 3 As shown in FIG. 9 , a pressing block 28 for flattening the punched portion of the metal strip 56 slides vertically in the slide groove B26 at the lower end of the slide seat 25; Figure 2 、 3 As shown in FIG10 , a punching nail 33 driven by a hydraulic cylinder 40 slides vertically in the slide groove C29 in the middle of the pressing block 28 and a spring D35 is installed to reset the relative movement between the two.

[0033] like Figure 3 As shown, a pair of push rods 13 corresponding to the punching positions on the metal strip 56 establish transmission with the hydraulic cylinder 40 during the process of the pressing block 28 approaching the metal strip 56 and completely release the clamping of the metal strip 56 before the pressing block 28 meets the metal strip 56; the two support plates 5 establish transmission with the hydraulic cylinder 40 during the process of the pressing block 28 flattening the metal strip 56 and move away from each other when the pressing block 28 stops moving to allow the punching nail 33 to pass vertically.

[0034] like Figure 3 、 8 As shown, the two support plates 5 slide in the slide grooves A2 of the two side walls of the workbench 1 respectively, and the springs A6 for returning each support plate 5 are respectively located in the corresponding slide grooves A2; Figure 6 As shown, each support plate 5 is mounted with a rack A7, and the two racks A7 are engaged with the gear A8 on the fixed plate 4 between the two workbenches 1; Figure 3 、 5 As shown in FIG. 7 , each sliding sleeve 11 is connected to a rack B19 via a U-shaped connecting rod B18 , and the two racks B19 on each pair of sliding sleeves 11 are engaged with the gear B20 on the fixed plate 4 .

[0035] like Figure 5As shown, the motor 55 is fixed on the guide seat 24; the screw 54 rotatably matched on the guide seat 24 is threadedly matched with the slide seat 25; the screw 54 is drivingly connected to the output shaft of the motor 55.

[0036] like Figure 2 、 3 4, the rack C36 installed on the punching nail 33 is meshed with the gear C37 installed in the slide 25; the gear D38 coaxial with the gear C37 is meshed with the rack D39 that slides vertically in the slide 25, and the rack D39 is driven by the hydraulic cylinder 40; the rack D39 is connected to the telescopic rod A42 and two telescopic rods B48 through two connecting rods C41; the telescopic rod A42 has a spring E47 for its vertical telescopic reset, and the telescopic rod B48 has a spring F53 for its vertical telescopic reset; the two telescopic rods A42 are matched with the two oblique rods 23 on any pair of push rods 13 in a one-to-one manner; the two telescopic rods B48 are matched with the oblique plates 10 connected to each support plate 5 by the connecting rod A9 in a one-to-one manner; the end of each push rod 13 has a splint 15 that matches the metal bar 56.

[0037] like Figure 2 As shown, the transmission ratio between the gear C37 and the gear D38 is greater than 1.

[0038] like Figure 4 As shown, the telescopic rod A42 consists of an outer sleeve A43 and an inner rod A45 that are connected to each other; the compression spring E47 for telescopically resetting the telescopic rod A42 is located in the outer sleeve A43 and connects the outer sleeve A43 and the inner rod A45; the telescopic rod B48 consists of an outer sleeve B49 and an inner rod B51 that are connected to each other; the compression spring F53 for telescopically resetting the telescopic rod B48 is located in the outer sleeve B49 and connects the outer sleeve B49 and the inner rod B51.

[0039] like Figure 2 、 10 As shown, the lower end of the pressing block 28 has two transition slopes 31 for preventing the metal strip 56 from being partially broken during the process of flattening the metal strip 56 .

[0040] like Figure 3 、 8 As shown, the sliding sleeve 11 has a trapezoidal guide block 17, which slides in the trapezoidal guide groove 3 on the workbench 1. The two guide blocks A14 symmetrically mounted on the top rod 13 slide in the two guide grooves A12 on the inner wall of the corresponding sliding sleeve 11. Figure 4 As shown, the two guide blocks B46 symmetrically mounted on the inner rod A45 slide in the two guide grooves B44 on the inner wall of the outer sleeve A43. The two guide blocks C52 symmetrically mounted on the inner rod B51 slide in the two guide grooves C50 on the inner wall of the outer sleeve B49. Figure 3 、 9As shown in FIG. 10 , the pressing block 28 has two guide blocks D32 , which slide in two guide grooves D27 on the inner wall of the slide groove B26 . The connecting rod B18 slides in the guide sleeve 22 on the workbench 1 . Figure 2 、 10 As shown, the spring D35 nested in the punching nail 33 is located in the annular groove 30 of the inner wall of the slide groove C29. One end of the spring D35 is connected to the inner wall of the annular groove 30, and the other end is connected to the compression spring ring 34 on the punching nail 33.

[0041] The working process of the present invention is as follows: In the initial state, the clamping plates 15 on any pair of push rods 13 press against each other, and the two support plates 5 press against each other. All springs A6, B16, and C21 are in a compressed state. There is a certain distance between the lower end of telescopic rod A42 and the corresponding row of diagonal rods 23. The distance between telescopic rod B48 and the corresponding side diagonal plate 10 is larger than the distance between the lower end of telescopic rod A42 and the diagonal rod 23. Spring E47 in telescopic rod A42 and spring F53 in telescopic rod B48 are in a compressed state. The pressing block 28 is retracted into the slot B26 of the slide 25, and the punching pin 33 is retracted into the slot C29 of the pressing block 28, with the pointed end of the punching pin 33 a certain distance from the notch of the slot C29. Spring D35 is in a compressed state. The gap between any pair of clamping plates 15 is vertically opposite the gap between the two support plates 5. The pointed end of the punching pin 33 is opposite the gap between the two support plates 5.

[0042] When the present invention is required to perform multi-position punching on a cylindrical metal strip 56, each pair of sleeves 11 is first moved away from each other in turn, so that each pair of sleeves 11 drives the corresponding pair of push rods 13 to separate from each other through the corresponding spring B16, so as to facilitate the placement of the metal strip 56 on the two opposing support plates 5.

[0043] During the back-to-back movement of each pair of sleeves 11 , the racks B19 on each pair of sleeves 11 drive the corresponding gears B20 to rotate, thereby achieving synchronization of the back-to-back movement of each pair of sleeves 11 . At the same time, the springs C21 for resetting each sleeve 11 are further compressed.

[0044] After the metal strip 56 is placed on the two support plates 5, the force on each pair of sleeves 11 is removed. Each sleeve 11, under the return action of its corresponding spring C21, drives the clamping plates 15 on the push rod 13 through spring B16 to press against the metal strip 56. The clamping plates 15 on all push rods 13 clamp the metal strip 56 in place at even intervals along the axial direction. The springs B16 within each sleeve 11 are further compressed, and the metal strip 56, clamped by several pairs of push rods 13, is positioned in the gap between the two support plates 5.

[0045] Then, start the motor 55, which drives the slide 25 on the guide seat 24 to slide axially along the metal strip 56 through the screw 54. When the pressing block 28 arrives just above the two push rods 13 at the position where the holes need to be punched on the metal strip 56, stop the motor 55.

[0046] Hydraulic cylinder 40 is activated, driving rack D39 and two connecting rods C41 in synchronous downward motion. Rack D39, via gears D38, C37, and rack C36, drives punching pin 33 in vertical downward motion. This, in turn, drives pressing block 28 in synchronous downward motion via spring D35. Simultaneously, connecting rod C41 drives telescopic rods A42 and B48 on it in synchronous downward motion. Because the transmission ratio between gears C37 and D38 is greater than 1, the speed of telescopic rods A42 and B48 exceeds that of pressing block 28.

[0047] The two telescopic rods A42 first intersect the two diagonal rods 23 on the lower pair of push rods 13. The diagonal rods 23 then drive the push rods 13 and their clamping plates 15 radially away from the metal strip 56, further compressing the springs B16 that return the push rods 13. When the lower ends of the pressure blocks 28 are flush with the upper surfaces of the push rods 13, the spacing between the clamping plates 15 on the two push rods 13 no longer interferes with the continued downward movement of the pressure blocks 28.

[0048] When the pressing block 28 meets the metal strip 56, the pressing block 28 begins to flatten the metal strip 56. At the same time, the spring D35 begins to be further compressed, the punching nail 33 moves downward relative to the pressing block 28, the two telescopic rods A42 are further compressed, and the spring E47 inside the telescopic rod A42 is further compressed.

[0049] When the sharp corners of the punching nails 33 meet the metal strip 56, the pressing block 28 reaches its limit of flattening the metal strip 56. At this point, the two telescopic rods B48 intersect the two inclined plates 10. The punching nails 33 begin to punch holes in the areas of the metal strip 56 flattened by the pressing block 28. Simultaneously, the two telescopic rods B48, via their respective side inclined plates 10, drive the two support plates 5 in a slower, opposite-direction motion, further compressing the two sets of springs B16. Because the racks A7 on the two support plates 5 mesh with the same gear A8, the two support plates 5 move synchronously, with the same amplitude, toward or away from each other, ensuring that the position of the metal strip 56 is not shifted by the movement of the support plates 5.

[0050] When the punching nail 33 penetrates the metal strip 56, the distance formed by the two support plates 5 moving in opposite directions under the drive of the telescopic rod B48 can allow the punching nail 33 to continue to move downward and still provide substantial support for the metal strip 56. At the same time, the continued pressure of the pressing block 28 on the flattened part effectively fixes the punching part of the metal strip 56, preventing the punching nail 33 from causing the flattened part of the metal strip 56 to shift when punching the metal strip 56.

[0051] After the punching nail 33 penetrates the flattened portion of the metal strip 56, the hydraulic cylinder 40 is actuated in the reverse direction. Through a series of transmission mechanisms, the hydraulic cylinder 40 drives the punching nail 33 out of the metal strip 56 and into its original position. During the reset process, the two telescopic rods B48 first separate from the inclined plate 10, followed by the punching nail 33 and the metal strip 56. The pressing block 28 then releases from the metal strip 56, and finally the two telescopic rods A42 release from the inclined rods 23 on the corresponding two push rods 13. Finally, the pressing block 28 and the punching nail 33 are reset.

[0052] After the two telescopic rods B48 detach from the inclined plate 10, the two support plates 5 move toward each other under the return action of the springs B16, eventually returning to contact and restoring support for the entire metal strip 56. After the two telescopic rods A42 detach from the inclined rods 23, the top rods 13, which had lost their grip on the metal strip 56, re-move toward each other under the return action of the corresponding springs B16 and re-clamp the flattened and perforated portion of the metal strip 56.

[0053] Then, the motor 55 is started to run, and the motor 55 drives the slide 25 through a series of transmissions to continue to move directly above the two push rods 13 where the next punching position is located on the metal strip 56. The punching of the next position and the reset of the punching nail 33 are exactly the same as the above punching procedure, which will not be repeated here.

[0054] After the punching of multiple positions on the metal strip 56 is completed and the punching nails 33 are reset, each pair of sliding sleeves 11 is manually moved away from each other. The sliding sleeves 11 drive the push rods 13 through the springs B16 to release the clamping of the metal strip 56 and the metal strip 56 can be taken out.

[0055] To sum up, the beneficial effects of the present invention are as follows: the present invention uses several pairs of push rods 13 on the two workbenches 1 to clamp the metal strips 56 or metal wires placed on the two support plates 5 at uniform intervals along the longitudinal direction, ensuring that the metal wires or metal strips 56 are effectively fixed and positioned during punching, thereby avoiding the reduction of punching quality due to the deviation of the cylindrical metal strips 56 or metal wires during punching.

[0056] When the punching mechanism on the slide 25 of the present invention is used to punch a hole in a specific portion of the metal strip 56 or wire, the pair of push rods 13 at that portion, through the interaction between the two telescopic rods A42 on the slide 25 and the inclined rods 23 on the push rods 13, release the clamping force on the portion of the metal strip 56 or wire to be punched. This allows the two push rods 13 at the punching portion of the metal strip 56 or wire to avoid the pressure block 28. The pressure block 28 on the slide 25 then flattens the portion that has lost the grip of the two push rods 13 to a certain extent. After the portion of the metal strip 56 or wire has been flattened to a certain extent, the punching mechanism on the slide 25 effectively punches the flattened portion of the metal strip 56 or wire. Furthermore, the movement of the slide 25 on the guide seat 24 drives the punching needles to efficiently punch multiple holes in the metal strip 56 or wire as needed, thereby improving the efficiency of punching multiple holes in the metal strip 56 or wire.

Claims

1. A metal processing equipment, characterized in that: It includes a workbench, a support plate, a spring A, a sliding sleeve, a push rod, a spring B, a spring C, a guide seat, a sliding seat, a pressure block, a punching nail, a spring D, a hydraulic cylinder, and a motor. Two workbenchs at a certain distance from each other move toward or away from each other in a horizontal direction perpendicular to a metal strip, and are provided with two support plates that are synchronously connected to each other and support the metal strip, and a spring A for resetting the support plates; a plurality of pairs of sliding sleeves evenly spaced along the axial direction of the metal strip are installed on the two workbench, and each pair of sliding sleeves moves toward or away from each other in a horizontal direction perpendicular to the metal strip and are synchronously connected to each other, and the workbench is provided with a spring C for resetting the sliding sleeves; a push rod is provided in each sliding sleeve that slides horizontally along the radial direction of the metal strip and is provided with a spring B for resetting the push rod; each pair of push rods clamps and fixes the metal strip on the support plate from both sides; A slide driven by a motor slides horizontally along the axis of the metal bar in the guide seat above the workbench, a pressure block slides vertically in the slide groove B at the lower end of the slide to flatten the punched part of the metal bar, a punching nail driven by a hydraulic cylinder slides vertically in the slide groove C in the middle of the pressure block and is equipped with a spring D to reset the relative movement of the two; a pair of push rods corresponding to the punched parts of the metal bar establish transmission with the hydraulic cylinder when the pressure block approaches the metal bar and completely release the clamping of the metal bar before the pressure block meets the metal bar; the two support plates establish transmission with the hydraulic cylinder when the pressure block flattens the metal bar and move away from each other when the pressure block stops moving to allow the punching nail to pass vertically.

2. The metal processing equipment according to claim 1, characterized in that: The two support plates slide in the slide grooves A on the side walls of the two workbenches respectively, and the springs A for resetting each support plate are located in the corresponding slide grooves A respectively; a rack A is installed on each support plate, and the two racks A are engaged with the gear A on the fixed plate between the two workbenches; each sliding sleeve is connected to a rack B through a U-shaped connecting rod B, and the two racks B on each pair of sliding sleeves are engaged with the gear B on the fixed plate.

3. The metal processing equipment according to claim 1, characterized in that: The motor is fixed on the guide seat; the screw rod that rotates and fits on the guide seat is threadedly matched with the slide seat; the screw rod is drivingly connected to the output shaft of the motor.

4. The metal processing equipment according to claim 1, characterized in that: The rack C installed on the punch nail meshes with the gear C installed in the slide; the gear D coaxial with the gear C meshes with the rack D that slides vertically in the slide, and the rack D is driven by a hydraulic cylinder; the rack D is connected to a telescopic rod A and two telescopic rods B through two connecting rods C; the telescopic rod A has a spring E for its vertical telescopic reset, and the telescopic rod B has a spring F for its vertical telescopic reset; the two telescopic rods A correspond one-to-one with the two oblique rods on any pair of push rods; the two telescopic rods B correspond one-to-one with the oblique plates on each support plate connected by the connecting rod A; the end of each push rod has a splint that cooperates with the metal bar.

5. The metal processing equipment according to claim 4, characterized in that: The transmission ratio between gear C and gear D is greater than 1.

6. The metal processing equipment according to claim 4, characterized in that: The telescopic rod A consists of an outer sleeve A and an inner rod A that are connected to each other; a compression spring E that extends and resets the telescopic rod A is located inside the outer sleeve A and connects the outer sleeve A and the inner rod A; the telescopic rod B consists of an outer sleeve B and an inner rod B that are connected to each other; a compression spring F that extends and resets the telescopic rod B is located inside the outer sleeve B and connects the outer sleeve B and the inner rod B.

7. The metal processing equipment according to claim 1, characterized in that: The lower end of the pressing block is provided with two transition inclined surfaces for preventing the metal strip from being partially broken during the process of the pressing block flattening the metal strip.

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