Punching size adjustable punching device for aluminum alloy plate

Abstract

The invention relates to the technical field of punching, in particular to a punching-size-adjustable punching device for an aluminum alloy plate, which comprises a machine tool and the aluminum alloy plate, the transverse plate is connected with the upper end of the machine tool through a moving mechanism; and the punching mechanism comprises an adjusting cylinder rotationally connected to the lower end of the transverse plate, a drill bit is fixedly connected to the lower end of the adjusting cylinder, a plurality of moving frames are slidably connected to the inner wall of the adjusting cylinder, scrapers are arranged on the inner side walls of the moving frames, and the side walls of the moving frames are connected with the side walls of the scrapers through a plurality of bolts. By arranging the punching mechanism, the multiple scrapers synchronously move outwards, meanwhile, after adjustment, the stability of the multiple scrapers after movement can be guaranteed, and the situation that in the prior art, due to air pressure driving and air compressibility, when the scrapers conduct drilling subsequently, due to the extrusion effect of a drilling material, the scrapers are driven by air pressure, and the scrapers are damaged is avoided. And the plurality of scrapers move towards the inner side, so that the drilling holes in the drilling material are invalid.

Description

Technical Field

[0001] The invention relates to the technical field of punching, and in particular to a punching device for an aluminum alloy plate with adjustable punching size. Background Art

[0002] Aluminum alloy plates have good flatness and rigidity, and can provide a stable support foundation for the production of printing plates. For example, when making lithographic printing plates, flat aluminum alloy plates can ensure that the image and blank parts can maintain accurate relative positions during plate making and subsequent printing, thereby ensuring the registration accuracy of the printed image, allowing each color to be accurately superimposed during multi-color printing, and printing high-quality finished products.

[0003] Its surface properties are suitable for various imaging processes. For example, the aluminum alloy plate used in computer-to-plate (CTP) technology has a specially treated surface that can well absorb the photosensitive material and other coatings required for platemaking. Under imaging operations such as laser irradiation, it can accurately form the graphics required for printing, achieve high-resolution, high-quality imaging effects, and ultimately make the graphics of printed products clear and delicate.

[0004] In the patent "A punching device for printing process with convenient adjustment of punching size" with publication number "CN216502482U", when the size of the drill hole is larger than the diameter of the drill bit, the No. 1 electric telescopic rod drives the drill bit down to the position where the scraper is located inside the drill hole, and gas is introduced into the air inlet pipe, the air expansion shaft expands, drives the scraper to move outward, and the scraper rotates to expand the drill hole. However, this solution still has the following problems: The movement of multiple scrapers outward is carried out by air pressure, but due to the compressibility of gas, when the scrapers are subsequently drilling, the scrapers will be squeezed by the drilling material and multiple scrapers will move inward, resulting in failure of drilling on the drilling material. In addition, when multiple scrapers move outward, the consistency of the moving distances of the multiple scrapers and the stability of the positions of the multiple scrapers after movement cannot be guaranteed. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a punching device for aluminum alloy plates with adjustable hole size.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A punching device for an aluminum alloy plate with adjustable punching size, comprising: Machine tools and aluminum alloy plates; A horizontal plate connected to the upper end of the machine tool through a moving mechanism; Punching mechanism, the punching mechanism includes an adjusting cylinder rotatably connected to the lower end of the cross plate, a drill bit is fixedly connected to the lower end of the adjusting cylinder, a plurality of moving frames are slidably connected to the inner wall of the adjusting cylinder, a scraping knife is provided on the inner side wall of the moving frame, the side wall of the moving frame is connected to the side wall of the scraping knife through a plurality of bolts, a lead screw is rotatably connected to the top of the adjusting cylinder, a slider is threadedly connected to the side wall of the lead screw, and the side wall of the slider is rotatably connected to the side walls of a plurality of moving frames through a plurality of adjusting rods respectively. A motor is fixedly connected to the upper end of the cross plate through a bracket, a first gear is fixedly connected to the side wall of the movable shaft of the motor, and a second gear meshing with the first gear is fixedly connected to the side wall of the adjusting cylinder; Limiting mechanism, the limiting mechanism is used to control the moving distance of the moving frame.

[0007] Preferably, the upper end of the lead screw penetrates through the upper end of the adjusting cylinder and is fixedly connected with a turntable. The side wall of the lead screw above the adjusting cylinder is provided with threads, and a nut is connected to the side wall of the threads.

[0008] Preferably, the limiting mechanism includes a plurality of first grooves opened at the upper end and the lower end of the moving frame. A top plate is slidably connected to the inner wall of the first groove. The side wall of the top plate is elastically connected to the inner wall of the first groove through a plurality of magnetic springs. A second groove corresponding to the first groove is opened on the inner wall of the adjusting cylinder in contact with the moving frame. A limiting plate is slidably connected to the inner wall of the second groove. The side wall of the limiting plate is elastically connected to the inner wall of the second groove through a first spring.

[0009] Preferably, a controller is fixedly connected to the side wall of the machine tool through a support plate. The controller is electrically connected to a plurality of magnetic springs through an external power source.

[0010] Preferably, the moving mechanism includes two chutes opened at the upper end of the machine tool. The inner walls of the two chutes away from each other are respectively communicated with the side walls on both sides of the machine tool. Electric rails are installed at the bottoms of the two chutes. A moving plate is provided on the electric rail. A first L-shaped plate is fixedly connected to the upper end of the moving plate. A through groove is opened on the side wall of the first L-shaped plate. The side wall of the cross plate fits into the inner wall of the through groove. A first cylinder is fixedly connected to the upper end of the first L-shaped plate. The output end of the first cylinder is fixedly connected to the upper end of the cross plate.

[0011] Preferably, a first U-shaped plate is slidably connected to the side walls of the two moving plates. A fixed block is fixedly connected to the upper end of the first U-shaped plate facing the machine tool. A moving opening is opened at the upper end of the machine tool. Two third grooves are opened at the upper end of the fixed block. A second U-shaped plate is slidably connected to the inner wall of the third groove. The side wall of the second U-shaped plate is elastically connected to the bottom of the third groove through a plurality of second springs. A stabilizing cylinder is rotatably connected to the side wall of the second U-shaped plate.

[0012] Preferably, the side wall of the first L-shaped plate is rotatably connected to the third gear through a bracket, the side wall of the horizontal plate close to the third gear is fixedly connected to the first tooth plate, the first tooth plate is meshed with the third gear, and the side wall of the first L-shaped plate close to the third gear is fixedly connected to the second tooth plate, the second tooth plate is meshed with the third gear.

[0013] Preferably, a strip-shaped cavity is opened on the inner wall of the fixed block, a rectangular plate is slidably connected to the inner wall of the strip-shaped cavity, the lower end of the rectangular plate is elastically connected to the bottom of the strip-shaped cavity through a plurality of third springs, a rifle rod is rotatably connected to the upper end of the rectangular plate, the side wall of the rifle rod is threadedly connected to the side wall of the fixed block, and a chamfered head is fixedly connected to the upper end of the rifle rod.

[0014] Preferably, the upper end of the machine tool is fixedly connected to two supporting plates, the upper end of the machine tool is located on both sides of the supporting plates and is fixedly connected to vertical plates, the side walls of the vertical plates are fixedly connected to the second cylinder, and the output end of the second cylinder is fixedly connected to a clamping plate.

[0015] Preferably, the side walls of the two movable plates close to each other are fixedly connected to the second L-shaped plate, the side walls of the fixed block are fixedly connected to a plurality of sliding rods, and the sliding rod side walls are slidably connected to the corresponding second L-shaped plate side walls.

[0016] Compared with the prior art, the present invention has the following advantages: 1. Setting a punching mechanism not only enables multiple scrapers to move outward synchronously, but also ensures the stability of the multiple scrapers after movement after adjustment, thereby avoiding the prior art where the scrapers are driven by air pressure. Due to the compressibility of gas, when the scrapers are subsequently drilling holes, the multiple scrapers will move inward under the squeezing action of the drilling material, resulting in failure of drilling holes on the drilling material. In addition, when the multiple scrapers move outward, the consistency of the moving distances of the multiple scrapers and the stability of the positions of the multiple scrapers after movement cannot be guaranteed.

[0017] 2. By setting a limit mechanism, the position of the scraper can be adjusted automatically, and the staff does not need to measure the diameter of the drilled hole after adjustment, which speeds up the adjustment efficiency and further limits the position of the scraper after movement.

[0018] 3. Two stabilizing cylinders are set. When the horizontal plate moves downward, the first C-shaped plate is driven to move up through the first tooth plate, the third gear and the second tooth plate, and the fixed block is driven to move up. At this time, under the action of multiple second springs, the two stabilizing cylinders are fitted with the lower surface of the aluminum alloy plate to ensure that when the drill bit or multiple scrapers drill holes in the aluminum alloy plate, the two stabilizing cylinders can partially support the drilling holes of the aluminum alloy plate to avoid uneven force damage to the drilling holes of the aluminum alloy plate.

[0019] 4. A chamfering head is provided to chamfer the drilled holes, avoiding the need to turn over the aluminum alloy plate after drilling, chamfer the drilled holes on the back, and remove the drilling debris in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a punching device for an aluminum alloy plate with adjustable punching size proposed by the present invention; Figure 2 for Figure 1 A vertical cross-sectional structural diagram of the middle punching mechanism; Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A; Figure 4 for Figure 3 A schematic diagram of the vertical cross-sectional structure of the front side of the middle adjustment cylinder; Figure 5 for Figure 4 A schematic diagram of the structure enlarged at B in the middle; Figure 6 for Figure 4 A schematic diagram of the structure enlarged at C in the middle; Figure 7 for Figure 1 A schematic diagram of the vertical cross-section structure at the middle fixed block; Figure 8 for Figure 7 A schematic diagram of the structure at D in the middle is enlarged; Fig. 9 for Figure 4 Schematic diagram of the distribution structure of the middle lead screw, multiple moving frames and multiple scrapers.

[0021] In the figure: 1, machine tool; 2, bearing plate; 3, aluminum alloy plate; 4, slide; 5, electric guide rail; 6, moving plate; 7, first L-shaped plate; 8, through groove; 9, cross plate; 10, first cylinder; 11, adjustment cylinder; 12, drill bit; 13, motor; 14, first gear; 15, second gear; 16, moving frame; 17, bolt; 18, scraper; 19, lead screw; 20, slider; 21, adjustment rod; 22, turntable; 23, nut; 24, first groove; 25, top plate; 26, magnetic spring; 27, The second slot; 28. the limit plate; 29. ​​the first spring; 30. the controller; 31. the first L-shaped plate; 32. the fixing block; 33. the third slot; 34. the second L-shaped plate; 35. the stabilizing cylinder; 36. the second spring; 37. the strip cavity; 38. the rectangular plate; 39. the third spring; 40. the rifle rod; 41. the chamfered head; 42. the third gear; 43. the first tooth plate; 44. the second tooth plate; 45. the second L-shaped plate; 46. the sliding rod; 47. the vertical plate; 48. the second cylinder; 49. the clamping plate; 50. the moving opening. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Figure 1 - Fig. 9 A punching device for aluminum alloy plates with adjustable punching size includes a machine tool 1 and an aluminum alloy plate 3. Two supporting plates 2 are fixedly connected to the upper end of the machine tool 1. The upper end of the machine tool 1 is located on both sides of the supporting plate 2 and is fixedly connected to vertical plates 47. The side walls of the vertical plates 47 are fixedly connected to second cylinders 48. The output end of the second cylinder 48 is fixedly connected to a clamping plate 49, which is convenient for placing and clamping the aluminum alloy plate 3.

[0024] The horizontal plate 9 is connected to the upper end of the machine tool 1 through a moving mechanism. The moving mechanism includes two slide grooves 4 opened at the upper end of the machine tool 1. The inner walls of the two slide grooves 4, which are far away from each other, are respectively connected to the side walls of the machine tool 1 (such as Figure 2 As shown), electric guide rails 5 are installed at the bottom of the two slide grooves 4, and a movable plate 6 is provided on the electric guide rail 5. A first L-shaped plate 7 is fixedly connected to the upper end of the movable plate 6. A through groove 8 is opened on the side wall of the first L-shaped plate 7. The side wall of the horizontal plate 9 is in contact with the inner wall of the through groove 8. A first cylinder 10 is fixedly connected to the upper end of the first L-shaped plate 7, and the output end of the first cylinder 10 is fixedly connected to the upper end of the horizontal plate 9.

[0025] The punching mechanism includes an adjusting cylinder 11 rotatably connected to the lower end of the horizontal plate 9, a drill bit 12 is fixedly connected to the lower end of the adjusting cylinder 11, a plurality of moving frames 16 are slidably connected to the inner wall of the adjusting cylinder 11, and a scraper 18 (such as Figure 4 As shown in FIG. 1 ), the side wall of the moving frame 16 is connected to the side wall of the scraper 18 by a plurality of bolts 17 (as shown in FIG. Figure 3 and Fig. 9 As shown in the figure, the top of the adjusting cylinder 11 is rotatably connected to a lead screw 19, the side wall of the lead screw 19 is threadedly connected to a slider 20, the side walls of the slider 20 are rotatably connected to the side walls of multiple moving frames 16 through multiple adjusting rods 21, the upper end of the cross plate 9 is fixedly connected to a motor 13 through a bracket, the side wall of the movable shaft of the motor 13 is fixedly connected to a first gear 14, and the side wall of the adjusting cylinder 11 is fixedly connected to a second gear 15 meshing with the first gear 14.

[0026] The upper end of the lead screw 19 passes through the upper end of the adjusting cylinder 11 and is fixedly connected to a turntable 22 . The side wall of the lead screw 19 located above the adjusting cylinder 11 is provided with threads, and a nut 23 is connected to the threaded side wall.

[0027] like Figure 3 , Figure 4 and Figure 6 As shown, when the lead screw 19 rotates clockwise, it drives the slider 20 to move downward. At this time, the slider 20 can drive the multiple moving frames 16 to move synchronously outward through the multiple adjusting rods 21, so that the multiple scrapers 18 move synchronously outward. At the same time, after adjustment, the rotating nut 23 is tightly fitted with the upper end of the adjusting cylinder 11 (the specific principle is explained later), and the rotation position of the lead screw 19 is limited to ensure the stability of the multiple scrapers 18 after movement, avoiding the prior art of driving by air pressure. Due to the compressibility of gas, when the scraper 18 is drilling a hole, the scraper 18 will move inward under the extrusion of the drilling material, resulting in failure of drilling on the drilling material, and when the multiple scrapers 18 move outward, the consistency of the moving distance of the multiple scrapers 18 and the stability of the position of the multiple scrapers 18 after movement cannot be guaranteed.

[0028] It should be noted that at the initial position, the diameter of the hole formed by the multiple scrapers 18 is consistent with the diameter of the hole formed by the drill bit 12. When a hole with a larger diameter needs to be drilled later, the diameter of the hole formed by the multiple scrapers 18 can be adjusted.

[0029] like Figure 5 As shown, it also includes a limiting mechanism, which is used to control the moving distance of the moving frame 16. The limiting mechanism includes a plurality of first grooves 24 opened at the upper and lower ends of the moving frame 16. The inner wall of the first groove 24 is slidably connected with a top plate 25. The side wall of the top plate 25 is elastically connected to the inner wall of the first groove 24 through a plurality of magnetic springs 26. The inner wall of the adjusting cylinder 11 and the moving frame 16 is provided with a second groove 27 corresponding to the first groove 24. The inner wall of the second groove 27 is slidably connected with a limiting plate 28. The side wall of the limiting plate 28 is elastically connected to the inner wall of the second groove 27 through a first spring 29.

[0030] The side wall of the machine tool 1 is fixedly connected to a controller 30 (such as Figure 1 As shown), the controller 30 is electrically connected to the plurality of magnetic springs 26 via an external power supply.

[0031] It should be noted that after the magnetic spring 26 is energized, due to electromagnetic induction, the magnetic spring 26 interacts with the current in the external magnetic field to generate different pulling forces to control the tensile deformation and movement state of the magnetic spring 26, and the controller 30 can perform single power on and off on multiple magnetic springs 26, which is a prior art. At the same time, when the magnetic spring 26 is powered off, the magnetic spring 26 can drive the top plate 25 to move upward. At this time, the top plate 25 is away from the upper surface of the magnetic spring 26 and is flush with the upper surface of the moving frame 16 (such as Figure 5 As shown), at the same time, the elastic force of the magnetic spring 26 is much greater than the elastic force of the first spring 29, so that the limiting plate 28 will not squeeze the top plate 25 to move.

[0032] In the present invention, the limit plate 28 can be arranged to cooperate with different first grooves 24, which means adjustment of different drilling diameters. When adjusting, it is only necessary to energize the magnetic spring 26 in the first groove 24 corresponding to the moving distance according to the distance that the scraper 18 needs to move outward, and the magnetic spring 26 contracts to drive the top plate 25 to move into the first groove 24. At this time, the magnetic spring 26 in the first groove 24 that cooperates with the limit plate 28 is de-energized and extended, so that the top plate 25 drives the limit plate 28 to return to its original position; When the subsequent moving frame 16 drives the scraper 18 to the outside, the limit plate 28 will move on the surface of the moving frame 16 and the surfaces of multiple top plates 25. When the first groove 24 corresponding to the contraction of the magnetic spring 26 moves to face the limit plate 28, the limit plate 28 is inserted into the first groove 24 under the elastic force of the first spring 29. At this time, the moving frame 16 and the scraper 18 cannot move, indicating that the adjustment has been completed. The staff does not need to measure the adjusted drilling diameter, which speeds up the adjustment efficiency and further limits the position of the scraper 18 after movement.

[0033] The side walls of the two movable plates 6 are slidably connected to a first shaped plate 31, and the first shaped plate 31 is fixedly connected to a fixed block 32 at the upper end facing the machine tool 1. The upper end of the machine tool 1 is provided with a movable opening 50, and the upper end of the fixed block 32 is provided with two third grooves 33 (such as Figure 8 As shown in the figure, the inner wall of the third groove 33 is slidably connected with the second shaped plate 34, the side wall of the second shaped plate 34 is elastically connected to the bottom of the third groove 33 through a plurality of second springs 36, and the side wall of the second shaped plate 34 is rotatably connected with a stabilizing cylinder 35.

[0034] The side wall of the first L-shaped plate 7 is rotatably connected to the third gear 42 through a bracket, the side wall of the cross plate 9 close to the third gear 42 is fixedly connected to the first toothed plate 43, the first toothed plate 43 meshes with the third gear 42, the side wall of the first L-shaped plate 31 close to the third gear 42 is fixedly connected to the second toothed plate 44, the second toothed plate 44 meshes with the third gear 42.

[0035] When the horizontal plate 9 moves downward, the first toothed plate 43, the third gear 42 and the second toothed plate 44 drive the first shaped plate 31 to move upward, and drive the fixed block 32 to move upward. At this time, under the action of the multiple second springs 36, the two stabilizing cylinders 35 are fitted with the lower surface of the aluminum alloy plate 3, ensuring that when the drill bit 12 or multiple scrapers 18 drill holes in the aluminum alloy plate 3, the two stabilizing cylinders 35 can partially support the aluminum alloy plate 3 at the drilling location, thereby avoiding uneven force damage to the aluminum alloy plate 3 at the drilling location; At the same time, when there are irregularities on the lower surface of the aluminum alloy plate 3 , the two stabilizing cylinders 35 can still fit the irregular lower surface of the aluminum alloy plate 3 under the action of the multiple second springs 36 .

[0036] A strip cavity 37 is provided on the inner wall of the fixed block 32, and a rectangular plate 38 is slidably connected to the inner wall of the strip cavity 37. The lower end of the rectangular plate 38 is elastically connected to the bottom of the strip cavity 37 through a plurality of third springs 39. A rifle rod 40 is rotatably connected to the upper end of the rectangular plate 38. The side wall of the rifle rod 40 is threadedly connected to the side wall of the fixed block 32, and a chamfered head 41 is fixedly connected to the upper end of the rifle rod 40.

[0037] When the fixed block 32 moves up, the chamfering head 41 will fit correspondingly with the drill hole on the aluminum alloy plate 3. As the fixed block 32 continues to move downward, the aluminum alloy plate 3 applies pressure on the chamfering head 41, so that the chamfering head 41 fits tightly with the drill hole and moves downward. At this time, the chamfering head 41 drives the rectangular plate 38 to move downward through the rifle rod 40. Then, during the downward movement of the rifle rod 40, since the side wall of the rifle rod 40 is threadedly connected to the side wall of the fixed block 32, the rifle rod 40 will move downward while rotating, so that the chamfering head 41 rotates to chamfer the drill hole, thereby avoiding the need to turn over the aluminum alloy plate 3 after drilling, chamfer the drill hole on the back side, and remove drilling debris in the prior art.

[0038] The side walls of the two movable plates 6 close to each other are fixedly connected with the second L-shaped plate 45 , and the side walls of the fixed block 32 are fixedly connected with a plurality of sliding rods 46 , and the side walls of the sliding rods 46 are slidably connected with the corresponding side walls of the second L-shaped plate 45 .

[0039] When drilling a hole in the aluminum alloy plate 3, firstly, the aluminum alloy plate 3 is placed on the two bearing plates 2, and then the four second cylinders 48 are adjusted to extend, driving the four clamping plates 49 to move toward the aluminum alloy plate 3 to clamp the aluminum alloy plate 3, and then the driving motor 13 is driven to rotate, and the adjusting cylinder 11 is driven to rotate through the first gear 14 and the second gear 15, thereby driving the drill bit 12 to rotate; Then, the two first cylinders 10 are adjusted to extend, so as to drive the horizontal plate 9 to move downward, and drive the drill bit 12 to move downward to drill holes in the aluminum alloy plate 3; At the same time, when the horizontal plate 9 moves downward, the first toothed plate 43, the third gear 42 and the second toothed plate 44 drive the first shaped plate 31 to move upward, and drive the fixed block 32 to move upward. At this time, under the action of the multiple second springs 36, the two stabilizing cylinders 35 are fitted with the lower surface of the aluminum alloy plate 3, ensuring that when the drill bit 12 or multiple scrapers 18 drill holes in the aluminum alloy plate 3, the two stabilizing cylinders 35 can partially support the aluminum alloy plate 3 at the drilling location, thereby avoiding uneven force damage to the aluminum alloy plate 3 at the drilling location. After drilling, the two first air cylinders 10 are adjusted to contract, driving the horizontal plate 9 and the drill bit 12 back to their original positions. At this time, the first shaped plate 31 also drives the fixing block 32 to move downward to its original position, so that the two stabilizing cylinders 35 are separated from the lower surface of the aluminum alloy plate 3. Then, the electric guide rail 5 is powered on to drive the two moving plates 6 to move, and the drilling position of the drill bit 12 is adjusted. At this time, the first U-shaped plate 31 drives the fixed block 32 to move synchronously with the moving plate 6, so that the two stabilizing cylinders 35 can always support the drilling position of the aluminum alloy plate 3; When the drill bit 12 drills a hole again after the movable plate 6 moves, during the upward movement of the fixed block 32, the chamfering head 41 will fit in correspondence with the drill hole on the aluminum alloy plate 3. As the fixed block 32 continues to move downward, the aluminum alloy plate 3 applies pressure to the chamfering head 41, so that the chamfering head 41 and the drill hole are tightly fitted and moved downward. At this time, the chamfering head 41 drives the rectangular plate 38 to move downward through the rifle rod 40. During the downward movement of the rifle rod 40, since the side wall of the rifle rod 40 is threadedly connected to the side wall of the fixed block 32, the rifle rod 40 will rotate and move downward, so that the chamfering head 41 rotates to chamfer the drill hole, thereby avoiding the need to turn over the aluminum alloy plate 3 after drilling, chamfer the drill hole on the back side, and remove the drilling debris in the prior art; When the drilling diameter needs to be adjusted, the magnetic spring 26 in the first slot 24 corresponding to the moving distance is energized according to the distance that the scraper 18 needs to move outward, and the magnetic spring 26 contracts to drive the top plate 25 to move into the first slot 24. At this time, the magnetic spring 26 in the first slot 24 that cooperates with the limiting plate 28 is de-energized and extended, so that the top plate 25 drives the limiting plate 28 to return to its original position; Then, the nut 23 is turned to separate from the top of the adjusting cylinder 11, and then the turntable 22 is turned clockwise to drive the lead screw 19 to rotate clockwise, driving the slider 20 to move downward. At this time, the slider 20 can drive the multiple moving frames 16 to move synchronously outward through the multiple adjusting rods 21, so that the multiple scrapers 18 move synchronously outward. At this time, the limit plate 28 will move on the surface of the moving frame 16 and the surface of the multiple top plates 25. When the first groove 24 corresponding to the contraction of the magnetic spring 26 moves to face the limit plate 28, the limit plate 28 is inserted into the first groove 24 under the elastic force of the first spring 29. At this time, the moving frame 16 and the scraper 18 cannot move, indicating that the adjustment has been completed. The staff does not need to measure the adjusted drilling diameter, which speeds up the adjustment efficiency and further limits the position of the scraper 18 after movement. Finally, turn the nut 23 again to fit tightly with the upper end of the adjusting cylinder 11, limit the rotation position of the lead screw 19, and ensure the stability of the multiple scrapers 18 after moving. Avoid the prior art of driving by air pressure. Due to the compressibility of gas, when the scraper 18 is drilling, the scraper 18 will be squeezed by the drilling material, and the multiple scrapers 18 will move inward, resulting in failure of drilling on the drilling material. In addition, when the multiple scrapers 18 move outward, the consistency of the moving distance of the multiple scrapers 18 and the stability of the position of the multiple scrapers 18 after moving cannot be guaranteed.

[0040] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A punching device for an aluminum alloy plate with adjustable punching size, characterized in that: include: A machine tool (1) and an aluminum alloy plate (3); A transverse plate (9), wherein the transverse plate (9) is connected to the upper end of the machine tool (1) via a moving mechanism; A punching mechanism, the punching mechanism comprising an adjusting cylinder (11) rotatably connected to the lower end of the horizontal plate (9), the lower end of the adjusting cylinder (11) being fixedly connected to a drill bit (12), the inner wall of the adjusting cylinder (11) being slidably connected to a plurality of moving frames (16), the inner side wall of the moving frame (16) being provided with a scraper (18), the side wall of the moving frame (16) being connected to the side wall of the scraper (18) via a plurality of bolts (17), the top of the adjusting cylinder (11) being rotatably connected to a lead screw (19), the side wall of the lead screw (19) being threadedly connected to a slider (20), the side wall of the slider (20) being rotatably connected to the side walls of the plurality of moving frames (16) via a plurality of adjusting rods (21), the upper end of the horizontal plate (9) being fixedly connected to a motor (13) via a bracket, the side wall of a movable shaft of the motor (13) being fixedly connected to a first gear (14), and the side wall of the adjusting cylinder (11) being fixedly connected to a second gear (15) meshing with the first gear (14); A limiting mechanism, wherein the limiting mechanism is used to control the moving distance of the moving frame (16).

2. A punching device for aluminum alloy plate with adjustable punching size according to claim 1, characterized in that: The upper end of the lead screw (19) passes through the upper end of the adjustment tube (11) and is fixedly connected to a rotating disk (22); a side wall of the lead screw (19) located above the adjustment tube (11) is provided with a thread, and a nut (23) is connected to the threaded side wall.

3. The punching device for aluminum alloy plate with adjustable punching size according to claim 1, characterized in that: The limiting mechanism comprises a plurality of first grooves (24) provided at the upper end and the lower end of the moving frame (16); the inner walls of the first grooves (24) are slidably connected to a top plate (25); the side walls of the top plate (25) are elastically connected to the inner walls of the first grooves (24) via a plurality of magnetic springs (26); the inner wall of the adjusting cylinder (11) and the moving frame (16) is provided with a second groove (27) corresponding to the first groove (24); the inner wall of the second groove (27) is slidably connected to a limiting plate (28); and the side wall of the limiting plate (28) is elastically connected to the inner wall of the second groove (27) via a first spring (29).

4. The punching device for aluminum alloy plate with adjustable punching size according to claim 3, characterized in that: A controller (30) is fixedly connected to the side wall of the machine tool (1) via a support plate, and the controller (30) is electrically connected to a plurality of magnetic springs (26) via an external power supply.

5. The punching device for aluminum alloy plate with adjustable punching size according to claim 1, characterized in that: The moving mechanism comprises two slide grooves (4) provided at the upper end of the machine tool (1), the inner walls of the two slide grooves (4) being away from each other and being respectively connected to the side walls of the machine tool (1), the bottoms of the two slide grooves (4) are both provided with electric guide rails (5), the electric guide rails (5) are provided with a moving plate (6), the upper end of the moving plate (6) is fixedly connected to a first L-shaped plate (7), the side wall of the first L-shaped plate (7) is provided with a through groove (8), the side wall of the horizontal plate (9) is in contact with the inner wall of the through groove (8), the upper end of the first L-shaped plate (7) is fixedly connected to a first cylinder (10), and the output end of the first cylinder (10) is fixedly connected to the upper end of the horizontal plate (9).

6. The punching device for aluminum alloy plate with adjustable punching size according to claim 5, characterized in that: A first U-shaped plate (31) is slidably connected to the side walls of the two moving plates (6). A fixed block (32) is fixedly connected to the upper end of the first U-shaped plate (31) facing the machine tool (1). A moving opening (50) is formed in the upper end of the machine tool (1). Two third grooves (33) are formed in the upper end of the fixed block (32). A second U-shaped plate (34) is slidably connected to the inner wall of the third groove (33). The side wall of the second U-shaped plate (34) is elastically connected to the bottom of the third groove (33) through a plurality of second springs (36). A stabilizing cylinder (35) is rotatably connected to the side wall of the second U-shaped plate (34).

7. A punching device for aluminum alloy plate with adjustable punching size according to claim 6, characterized in that: A third gear (42) is rotatably connected to the side wall of the first L-shaped plate (7) through a bracket. A first toothed plate (43) is fixedly connected to the side wall of the cross plate (9) close to the third gear (42). The first toothed plate (43) meshes with the third gear (42). A second toothed plate (44) is fixedly connected to the side wall of the first U-shaped plate (31) close to the third gear (42). The second toothed plate (44) meshes with the third gear (42).

8. The punching device for aluminum alloy plate with adjustable punching size according to claim 6, characterized in that: A strip-shaped cavity (37) is formed in the inner wall of the fixed block (32). A rectangular plate (38) is slidably connected to the inner wall of the strip-shaped cavity (37). The lower end of the rectangular plate (38) is elastically connected to the bottom of the strip-shaped cavity (37) through a plurality of third springs (39). A rifling rod (40) is rotatably connected to the upper end of the rectangular plate (38). The side wall of the rifling rod (40) is threadedly connected to the side wall of the fixed block (32). A chamfered head (41) is fixedly connected to the upper end of the rifling rod (40).

9. The punching device for aluminum alloy plate with adjustable punching size according to claim 1, characterized in that: Two bearing plates (2) are fixedly connected to the upper end of the machine tool (1). Vertical plates (47) are fixedly connected to both sides of the upper end of the machine tool (1) and located on both sides of the bearing plates (2). A second cylinder (48) is fixedly connected to the side wall of the vertical plate (47). A clamping plate (49) is fixedly connected to the output end of the second cylinder (48).

10. The punching device for aluminum alloy plate with adjustable punching size according to claim 6, characterized in that: Second L-shaped plates (45) are fixedly connected to the side walls of the two moving plates (6) close to each other. A plurality of sliding rods (46) are fixedly connected to the side wall of the fixed block (32). The side wall of the sliding rod (46) is slidably connected to the side wall of the corresponding second L-shaped plate (45).

Images