A metal plate punching structure

Abstract

The utility model relates to punch structure technical field especially relates to a hardware sheet material punch structure, including operation platform, the upper portion of operation platform is provided with guide rail pair guide rail no.

Description

Technical Field

[0001] This utility model relates to the field of punching structure technology, and in particular to a punching structure for metal sheet materials. Background Technology

[0002] Punching of sheet metal parts is a common metal processing technique widely used in the manufacture of various metal products, such as home appliances, automotive parts, and electronic device housings. By punching holes of various shapes and sizes into metal sheets, multiple functions such as installation, connection, heat dissipation, and weight reduction can be achieved.

[0003] Commonly used metal materials for punching sheet metal parts include steel, stainless steel, aluminum, and copper. The choice of material depends on the product's usage environment and performance requirements. When a sheet metal part needs to perform multiple functions, it needs to be punched in different locations. For example, the existing technology, Chinese Patent Publication No. "CN222020506U", provides an automatic debris collection punching device, including a base, a bracket, a punching mechanism, and an edge positioning mechanism. The base is provided with a processing groove for accommodating the sheet metal; the bracket is set on the base and located on one side of the processing groove; the output end of the edge positioning mechanism is rotatably connected to the base, and the end of the edge positioning mechanism can rotate above the processing groove and abut against the edge of the sheet metal. By adopting an edge rotation positioning structure, when the sheet metal is not placed, the end of the edge positioning mechanism retracts into the base. When processing is required, the edge positioning mechanism can fix and limit the edge of the sheet metal. Combined with the middle positioning pin structure of traditional processing devices, the edge of the sheet metal is always fixed during the entire punching process, effectively preventing excessive bending of the sheet metal edge and improving the punching effect.

[0004] Currently, most punching processes for sheet metal parts involve using fixed molds. The sheet metal parts are placed in the molds, and corresponding punching slots are created in the bottom of the slots where the sheet metal parts are placed. This allows for punching with a punch. However, this method cannot achieve accurate punching when sheet metal parts of the same specification are used in different locations within the equipment. Different molds need to be changed for each operation, which is not only time-consuming and labor-intensive, but also results in the waste of production resources when individual molds are discarded after a few uses. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned shortcomings in the existing technology and to propose a punching structure for metal sheet materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a punching structure for metal sheet metal, including an operating table. A guide rail sub-guide rail 1 is provided above the operating table. Two sets of guide rail sub-guide rail 1 are provided along the surface of the operating table and are distributed in parallel between the two guide rail sub-guide rail 1. A guide rail sub-slide 1 is slidably provided at the upper end of the guide rail sub-guide rail 1. The same guide rail sub-guide rail 2 is fixedly installed at the upper end of the guide rail sub-slide 1 distributed on both sides. A guide rail sub-slide 2 is slidably provided on the surface of the guide rail sub-guide rail 2.

[0008] A base is fixedly installed on the upper end of the guide rail slide block two. A cylinder is fixedly installed in the middle of the upper end of the base. A piston rod for extension and retraction is provided inside the cylinder. A lifting platform is fixedly installed at the end of the piston rod. A punch is fixedly installed on one side of the lower end of the lifting platform.

[0009] A support platform is fixedly provided at one end of the base near the punch. A punching channel is provided inside the support platform. The center point of the punching channel is on the same vertical line as the center point of the punch. The inner diameter of the punching channel is much larger than the outer diameter of the punch.

[0010] In detail, the end of the lifting platform away from the punch is fixedly connected to a limiting sleeve, the limiting sleeve is slidably connected to a limiting rod, and the lower end of the limiting rod is fixed to the end of the base away from the support platform.

[0011] In detail, a second cylinder is fixedly installed on the top of the operating table via a bracket. The second cylinders are symmetrically distributed along both sides of the operating table. Inside the second cylinder is a second piston rod for extension and retraction. A connecting seat is fixedly installed at the end of the second piston rod.

[0012] In detail, the connecting seat is a U-shaped structure, with a connecting block slidably inserted into its inner side. A clamp is fixedly installed at the end of the connecting block away from the second cylinder, and the same metal sheet is provided between the clamps distributed along both sides.

[0013] In detail, a threaded sleeve is fixed through the upper end of the clamp, and a threaded knob is threadedly connected to the inner side of the threaded sleeve. The lower end of the threaded knob is tightly fitted against the surface of the metal sheet.

[0014] In detail, cylinders three are fixedly installed at both ends of the connecting block. A piston rod three for extension and retraction is provided inside the cylinder three. A clamping plate is fixedly installed at the end of the piston rod three. The surface of the clamping plate is in close contact with the side wall of the hardware sheet.

[0015] In detail, a positioning sleeve is fixedly inserted through the upper end of the connecting seat, and a positioning pin is slidably connected inside the positioning sleeve.

[0016] In detail, a spring is wound around the surface of the positioning pin, and the two ends of the spring are fixedly installed to the end of the positioning pin and the end face of the positioning sleeve, respectively.

[0017] In detail, the upper end of the connecting block is provided with a pin groove, and the end of the positioning pin away from the spring slides into and engages with the inside of the pin groove.

[0018] The design scheme proposed in this utility model has the following beneficial effects in application:

[0019] 1. This solution adopts a double guide rail pair (guide rail pair one and guide rail pair two) design. The punch and the support table move synchronously back and forth and left and right through the linkage of the corresponding guide rail pair slides, ensuring accurate punching position. The cooperation between the support table and the punching channel can support the area around the punching hole and avoid deformation of the sheet metal. The sliding structure of the limit rod and the limit sleeve further stabilizes the movement of the lifting platform. Combined with the precise control of cylinder one, the punching process has both high precision and mechanical stability, which is suitable for the processing of hardware parts with strict requirements for hole position.

[0020] 2. As described in 1, the clamping seat is moved laterally by the symmetrically distributed cylinders. With the sliding insertion design of the connecting block, the clamping distance can be flexibly adjusted to adapt to sheet metal of different widths. The threaded knob on the top of the clamping seat provides vertical clamping force, while the clamping plate pushed by the cylinder fixes the workpiece from the front and rear sides, forming multi-directional (left and right, up and down, front and back) coordinated clamping, which effectively prevents workpiece displacement or vibration during punching, and is especially suitable for processing irregular or thin-walled sheet metal parts. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0023] Figure 3 This is a bottom view of the support platform of this utility model;

[0024] Figure 4 This is an enlarged schematic diagram of point A in this utility model;

[0025] Figure 5 This is a disassembly diagram of the connecting block and connecting seat of this utility model.

[0026] In the diagram: 1. Operating table; 11. Guide rail pair guide rail one; 12. Guide rail pair slide one; 13. Guide rail pair guide rail two; 14. Guide rail pair slide two; 15. Base; 16. Cylinder one; 17. Support platform; 18. Lifting platform; 19. Punch; 110. Punching channel; 2. Limit sleeve; 21. Limit rod; 3. Cylinder two; 31. Connecting seat; 32. Connecting block; 33. Clamping seat; 34. Threaded sleeve; 35. Threaded knob; 36. Hardware sheet metal; 37. Cylinder three; 38. Clamping plate; 3001. Positioning sleeve; 3002. Positioning pin; 3003. Spring; 3004. Pin groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Reference Figures 1-5 A punching structure for sheet metal includes an operating table 1. A guide rail sub-guide rail 11 is provided above the operating table 1. Two sets of guide rail sub-guide rails 11 are provided along the surface of the operating table 1 and are distributed in parallel between the two guide rail sub-guide rails 11. A guide rail sub-slide seat 12 is slidably provided at the upper end of the guide rail sub-guide rail 11. By sliding the guide rail sub-slide seat 12 on the guide rail sub-guide rail 11, the punch 19 and the support table 17 can move synchronously left and right. The same guide rail sub-guide rail 13 is fixedly installed at the upper end of the guide rail sub-slide seat 12 distributed on both sides. A guide rail sub-slide seat 14 is slidably provided on the surface of the guide rail sub-guide rail 13. By sliding the guide rail sub-slide seat 14 on the guide rail sub-guide rail 13, the punch 19 and the support table 17 can move synchronously back and forth.

[0029] A base 15 is fixedly installed on the upper end of the guide rail slide 14. A cylinder 16 is fixedly installed in the middle of the upper end of the base 15. A piston rod 1 for telescopic extension is provided inside the cylinder 16. A lifting platform 18 is fixedly installed at the end of the piston rod 1. A punch 19 is fixedly installed on one side of the lower end of the lifting platform 18. The height of the lifting platform 18 can be adjusted by telescopic extension of the piston rod 1 of the cylinder 16. Thus, the punch 19 can perform punching operation on the metal sheet 36. The support 17 can support the periphery of the punching position. The punching channel 110 can provide enough space for the punch 19 to punch the path.

[0030] A support platform 17 is fixedly provided at one end of the base 15 near the punch 19. A punching channel 110 is provided inside the support platform 17. The center point of the punching channel 110 is on the same vertical line as the center point of the punch 19. The inner diameter of the punching channel 110 is much larger than the outer diameter of the punch 19. The support platform 17 can move synchronously with the punch 19 so that the punch 19 will not cause deformation around the punching position of the metal sheet 36 when punching.

[0031] It should be further explained that the end of the lifting platform 18 away from the punch 19 is fixedly connected to the limiting sleeve 2. The limiting sleeve 2 is slidably sleeved with the limiting rod 21. The lower end of the limiting rod 21 is fixed to the end of the base 15 away from the support platform 17. The limiting sleeve 2 slides on the surface of the limiting rod 21, so that the lifting process of the lifting platform 18 relative to the base 15 can be further stabilized.

[0032] It should be further explained that a second cylinder 3 is fixedly installed on the top of the operating table 1 by a bracket. The second cylinder 3 is symmetrically distributed on both sides of the operating table 1. The inside of the second cylinder 3 is provided with a piston rod 2 for extension and retraction. A connecting seat 31 is fixedly installed at the end of the piston rod 2. The extension and retraction of the piston rod 2 of the second cylinder 3 can adjust the position of the clamp 33, so that it can be adapted to the size of the hardware sheet 36.

[0033] It should be further explained that the connecting seat 31 has a U-shaped structure, and a connecting block 32 is slidably inserted into its inner side. A clamping seat 33 is fixedly installed at the end of the connecting block 32 away from the cylinder 2 3. The same hardware sheet 36 is arranged between the clamping seats 33 distributed on both sides. The clamping seat 33 can firmly clamp the two sides of the hardware sheet 36. After the hardware sheet 36 is clamped and positioned by the clamping seat 33, its lower end face is just in contact with the upper end face of the support table 17, thereby achieving local stable support during punching.

[0034] It should be further explained that a threaded sleeve 34 is fixedly fixed through the upper end of the clamp 33, and a threaded knob 35 is threadedly connected to the inner side of the threaded sleeve 34. The lower end of the threaded knob 35 is tightly abutted against the surface of the metal sheet 36. By moving the threaded knob 35 relative to the threaded sleeve 34, the threaded knob 35 can lock and fix the metal sheet 36, thereby stabilizing the vertical position of the metal sheet 36 during punching.

[0035] It should be further explained that cylinders 37 are fixedly installed at both ends of the connecting block 32. The cylinders 37 have piston rods 3 for telescopic movement inside. Clamping plates 38 are fixedly installed at the ends of the piston rods 3. The surface of the clamping plates 38 is in close contact with the side wall of the metal sheet 36. In order to ensure that the position of the metal sheet 36 can be uniformly limited when placed, it is necessary not only to limit the clamping position by the clamping seat 33, but also to extend and retract the piston rods 37 of the cylinders 37 so that the clamping plates 38 distributed on the front and rear sides can contact the side of the metal sheet 36. Together with the clamping seat 33, the horizontal position of the metal sheet 36 is fixed in multiple directions.

[0036] It should be further noted that a positioning sleeve 3001 is fixedly fixed through the upper end of the connecting seat 31, and a positioning pin 3002 is slidably sleeved inside the positioning sleeve 3001. The positioning pin 3002 has a hand-pull structure, which can easily cooperate with the pin groove 3004, so that the connecting seat 31 and the connecting block 32 can be stably installed.

[0037] It should be further noted that a spring 3003 is wound around the surface of the positioning pin 3002. The two ends of the spring 3003 are fixedly installed with the end of the positioning pin 3002 and the end face of the positioning sleeve 3001, respectively. The spring 3003 can ensure the stable reset of the positioning pin 3002 after stretching.

[0038] It should be further explained that the upper end of the connecting block 32 is provided with a pin groove 3004. The end of the positioning pin 3002 away from the spring 3003 slides into and connects with the inside of the pin groove 3004. When it is necessary to replace the connecting block 32 and the clamp 33 connected thereto, etc., the positioning pin 3002 is pulled, so that the spring 3003 can be stretched, thereby allowing the positioning pin 3002 to disengage from the pin groove 3004. Thus, the connecting block 32 can be separated from the connecting seat 31, and the connecting block 32 can be disassembled.

[0039] Working method: This solution achieves precise positioning of punch 19 and support table 17 through components such as guide rail pairs. Specifically, guide rail pair 11 is distributed parallel to the surface of the operating table 1, and guide rail pair slide 12 on it can slide in the left and right direction along the X-axis, driving the upper guide rail pair 13 to move as a whole. Guide rail pair slide 14 can slide in the front and back direction along the Y-axis on guide rail pair 13, so that punch 19 and support table 17 fixed to base 15 can be adjusted to any position in the plane. During stamping, cylinder 16 drives piston rod 1 to descend, pushing lifting table 18 and punch 19 to complete the vertical punching action. The punching channel 110 inside support table 17 provides a path for punch, while supporting the periphery of sheet metal to prevent deformation. The cooperation between limit sleeve 2 and limit rod 21 further ensures the stability of the stamping process.

[0040] The fixing of the sheet metal part 36 relies on the coordinated action of cylinder 2 3 and clamp 33. Cylinder 2 3, which is symmetrically distributed on both sides, pushes the connecting seat 31 and clamp 33 towards the center through piston rod 2, clamping the sheet metal from both sides. The threaded knob 35 above the clamp 33 presses down through the threaded sleeve 34 to lock the upper surface of the sheet metal and prevent the sheet metal from warping during punching. In addition, cylinder 37 drives the clamping plate 38 to press against the side of the sheet metal from the front and back, forming a multi-directional limit with the clamp 33 to ensure that the sheet metal has no displacement in the horizontal plane. The connecting block 32 and the connecting seat 31 are quickly connected through the positioning pin 3002 and the spring 3003, which facilitates the replacement of clamping components of different sizes and adapts to diverse sheet metal processing needs.

[0041] The clamping unit adopts a modular design, which enables quick assembly and disassembly through the insertion of the positioning pin 3002 and the pin groove 3004. When it is necessary to replace the clamping seat 33 or adjust the clamping range, the operator manually pulls out the positioning pin 3002 and compresses the spring 3003 to separate the connecting block 32 from the connecting seat 31. After replacement, the positioning pin 3002 is released, and the spring 3003 rebounds to automatically insert into the pin groove 3004 to complete the locking. This design not only simplifies the clamp adjustment process, but also supports the adaptation of sheet metal 36 with different thicknesses or shapes.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A punching structure for sheet metal, comprising an operating table (1), characterized in that: The operating table (1) is provided with a guide rail sub-guide rail one (11) above it. There are two sets of guide rail sub-guide rail one (11) along the surface of the operating table (1), and the two guide rail sub-guide rails one (11) are distributed in parallel. The upper end of the guide rail sub-guide rail one (11) is slidably provided with a guide rail sub-slide seat one (12). The upper end of the guide rail sub-slide seat one (12) distributed on both sides is fixedly installed with the same guide rail sub-guide rail two (13). The surface of the guide rail sub-guide rail two (13) is slidably provided with a guide rail sub-slide seat two (14). The upper end of the guide rail slide block two (14) is fixedly installed with a base (15), and the upper middle part of the base (15) is fixedly installed with a cylinder one (16). The cylinder one (16) is provided with a piston rod one for extension and retraction. The end of the piston rod one is fixedly installed with a lifting platform (18), and a punch (19) is fixedly installed on one side of the lower end of the lifting platform (18). The base (15) is fixedly provided with a support platform (17) at one end near the punch (19). A punching channel (110) is provided inside the support platform (17). The center point of the punching channel (110) and the center point of the punch (19) are on the same vertical line. The inner diameter of the punching channel (110) is much larger than the outer diameter of the punch (19).

2. The punching structure for sheet metal as described in claim 1, characterized in that: The lifting platform (18) is fixedly connected to the end away from the punch (19) by a limiting sleeve (2), and the limiting sleeve (2) is slidably connected to a limiting rod (21). The lower end of the limiting rod (21) is fixed to the end of the base (15) away from the support platform (17).

3. The punching structure for sheet metal as described in claim 1, characterized in that: A cylinder 2 (3) is fixedly installed above the operating table (1) by a bracket. The cylinder 2 (3) is symmetrically distributed on both sides of the operating table (1). The cylinder 2 (3) is equipped with a piston rod 2 for extension and retraction. A connecting seat (31) is fixedly installed at the end of the piston rod 2.

4. The punching structure for sheet metal as described in claim 3, characterized in that: The connecting seat (31) is a U-shaped structure, with a connecting block (32) slidably inserted inside. A clamp (33) is fixedly installed at the end of the connecting block (32) away from the cylinder (3). The same metal sheet (36) is provided between the clamps (33) distributed on both sides.

5. The punching structure for sheet metal as described in claim 4, characterized in that: The upper end of the clamp (33) is fixed with a threaded sleeve (34), and the inner side of the threaded sleeve (34) is threaded with a threaded knob (35). The lower end of the threaded knob (35) is tightly attached to the surface of the metal sheet (36).

6. The punching structure for sheet metal as described in claim 5, characterized in that: Both ends of the connecting block (32) are fixedly installed with cylinder three (37). The cylinder three (37) is provided with piston rod three for telescopic movement. The end of piston rod three is fixedly installed with clamp plate (38). The surface of clamp plate (38) is in close contact with the side wall of hardware sheet (36).

7. The punching structure for sheet metal as described in claim 6, characterized in that: The upper end of the connecting seat (31) is fixed with a positioning sleeve (3001), and a positioning pin (3002) is slidably sleeved inside the positioning sleeve (3001).

8. The punching structure for sheet metal according to claim 7, characterized in that: A spring (3003) is wound around the surface of the positioning pin (3002), and the two ends of the spring (3003) are fixedly installed to the end of the positioning pin (3002) and the end face of the positioning sleeve (3001), respectively.

9. The punching structure for sheet metal according to claim 8, characterized in that: The upper end of the connecting block (32) is provided with a pin groove (3004), and the end of the positioning pin (3002) away from the spring (3003) slides into and connects with the inside of the pin groove (3004).

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