Hardware fitting lug hole punching die

Abstract

The utility model relates to a lug hole punching die for hardware fittings, which is characterized in that a first clamping assembly used for clamping square pipe hardware fittings sleeved on a placing assembly is arranged in the placing assembly, and a second clamping assembly used for clamping the hardware fittings sleeved on the placing assembly in cooperation with the first clamping assembly is arranged in the placing assembly; a driving assembly used for driving the first clamping assembly and the second clamping assembly to clamp the hardware fittings arranged on the containing assembly in a sleeving mode is arranged in the containing assembly. A motor drives a rotating shaft to rotate, a first threaded rod rotates, and two first threaded sleeve plates can oppositely move at two sections of threads on the first threaded rod; the two clamping plates can be controlled to clamp and fix the upper inner wall and the lower inner wall of the square pipe hardware fitting; meanwhile, a second threaded rod rotates to control a second threaded sleeve to drive a second clamping plate to clamp and fix the left inner wall and the right inner wall of the square pipe hardware fitting; and finally, the square pipe hardware fitting is punched through the punching device.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a punch hole mold for hardware accessories. Background Technology

[0002] When installing hardware accessories, many hardware parts need to be punched to create through holes, especially square tube hardware parts, to facilitate the assembly of multiple square tube hardware parts. For example, as shown in the punching and flanging one-time forming mold for hardware parts with Chinese patent application number CN201721422392.6, the die is provided with a platform for placing the hardware parts. The platform has a punching hole corresponding to the through hole of the hardware parts. The punch is coaxial with the punching hole. The top periphery of the punching hole has a concave flanging step. The hardware parts are placed on the platform, and the punch presses against the flanging step to press the hardware parts to create a downward convex bulge. The punch continues to punch downward through the punching hole to finally form a flanging hole.

[0003] However, when punching ear holes in hardware workpieces using the punching device on the platform, there is a lack of a clamping device for square tube hardware workpieces. When punching square tube hardware workpieces of different widths, it is necessary to change the corresponding clamping device. This process is not only time-consuming and laborious, but also inconvenient for punching square tube hardware workpieces of different widths. Utility Model Content

[0004] To address the problem mentioned in the background art—the lack of a clamping device for square tube hardware workpieces, which necessitates changing the clamping device when punching square tube hardware workpieces of different widths, a process that is not only time-consuming and labor-intensive but also inconvenient for punching square tube hardware workpieces of varying widths—this utility model provides the following technical solution:

[0005] A punching die for metal fittings includes a worktable, a clamping device for clamping square tube metal fittings is provided at the top of the worktable, and a punching device for punching holes in the square tube metal fittings on the clamping device is provided at the top of the worktable.

[0006] The punching device includes a punching assembly disposed above the workbench for punching square tube hardware fittings on the clamping device, and a buffer assembly disposed at the bottom end of the punching assembly for cushioning the punching assembly.

[0007] The clamping device includes a placement assembly for supporting square tube hardware fittings. The placement assembly contains a clamping component one for clamping the square tube hardware fittings mounted on the placement assembly. The placement assembly also contains a clamping component two for cooperating with clamping component one to clamp the hardware fittings mounted on the placement assembly. The placement assembly further contains a driving component for driving clamping component one and clamping component two to clamp the hardware fittings mounted on the placement assembly.

[0008] Furthermore, a support plate for supporting the punching assembly is fixedly installed on the top of the workbench, and a sliding groove is provided at the front end of the support plate.

[0009] Furthermore, the punching assembly includes a top plate disposed above the placement assembly for vertical movement. The top of the top plate is provided with a hydraulic cylinder for driving the top plate to move vertically. The top of the hydraulic cylinder is fixedly mounted with a support frame for supporting the hydraulic cylinder. The rear end of the top plate is fixedly mounted with a slider for sliding in a groove. The bottom end of the top plate is fixedly mounted with a punching head for punching the hardware fittings mounted on the placement assembly.

[0010] Furthermore, the buffer assembly includes a fixed cylinder fixedly installed at the bottom end of the top plate. A movable rod for vertical movement is provided inside the cavity of the fixed cylinder. A limiting plate for preventing the movable rod from moving out of the fixed cylinder is fixedly installed at the top end of the movable rod. A fixed plate for supporting the movable rod is fixedly installed at the bottom end of the movable rod. A spring for buffering the top plate is fitted on the rod body of the movable rod.

[0011] Furthermore, the placement assembly includes a placement column fixedly installed at the front end of the support plate. The upper and lower ends of the placement column are fixedly installed with limiting columns for restricting the square tube hardware fittings. The top end of the placement column is provided with a round hole for assisting the stamping head in punching the square tube hardware fittings.

[0012] Furthermore, the driving assembly includes a rotating shaft disposed within the placement column for rotation, a motor for driving the rotating shaft to rotate is disposed at the front end of the rotating shaft, and a bevel gear is fixedly installed at the rear end of the rotating shaft for driving clamping assembly one and clamping assembly two to fix the square tube hardware fittings mounted on the placement column.

[0013] Furthermore, the clamping assembly includes a threaded rod 1 disposed within the placement column for rotation. A bevel gear 2 is disposed on the rod body of the threaded rod 1 for meshing with a bevel gear 1. A threaded sleeve 1 for vertical movement is disposed on the rod body of the bevel gear 2, and there are two threaded sleeves 1. A connecting rod 1 for synchronous movement with the threaded sleeve 1 is fixedly installed at the end of the threaded sleeve 1 away from the bevel gear 2, and there are four connecting rods 1. A clamping plate 1 for clamping and fixing the square tube hardware is disposed at the top of the four connecting rods 1. An anti-slip strip 1 for preventing slippage of the clamping plate 1 is fixedly installed at the end of the clamping plate 1 away from the connecting rod 1.

[0014] Furthermore, the clamping assembly two includes a bevel gear three disposed inside the placement column for meshing with the bevel gear two. A threaded rod two for rotation is fixedly installed at the end of the bevel gear three away from the bevel gear two. A threaded sleeve plate two for left and right movement is threadedly connected to the rod body of the threaded rod two. A connecting rod two is fixedly installed on the threaded sleeve plate two away from the bevel gear three, and there are four connecting rod two. A clamping plate two for clamping and fixing square tube hardware is fixedly installed at the end of the four connecting rod two away from the threaded sleeve two. An anti-slip strip two for preventing slippage is fixedly installed at the end of the clamping plate two away from the connecting rod two.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting up a punching device and a clamping device, when punching square tube hardware fittings is required, the square tube hardware fittings can be mounted on a placement column. Then, the motor drives the rotating shaft to rotate, and with the meshing connection of bevel gear one and bevel gear two, the threaded rod one can rotate, allowing the two threaded sleeve plates one to move in opposite directions at the two threaded sections of the threaded rod one. This controls the two clamping plates one to clamp and fix the upper and lower inner walls of the square tube hardware fittings. At the same time, with the meshing connection of bevel gear three and bevel gear one, the threaded rod two can rotate, controlling the threaded sleeve two to drive the clamping plates two to clamp and fix the left and right inner walls of the square tube hardware fittings. This allows for clamping and fixing of square tube hardware fittings of different widths to prevent the square tube hardware fittings from shaking during punching. Finally, the punching device is used to punch the square tube hardware fittings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the workbench structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the punching device of this utility model;

[0020] Figure 4 This is a schematic diagram of the clamping device structure of this utility model;

[0021] Figure 5 This is a diagram showing the mating of clamping component one and clamping component two of this utility model.

[0022] The following is a list of component names represented by the various reference numerals in the attached figures:

[0023] 100-Workbench, 101-Support plate, 102-Slide groove;

[0024] 200-Punching device, 210-Punching assembly, 211-Hydraulic cylinder, 212-Support frame, 213-Top plate, 214-Slider, 215-Punching rod, 220-Buffer assembly, 221-Fixed cylinder, 222-Moving rod, 223-Limiting plate, 224-Spring, 225-Fixed plate;

[0025] 300-Clamping device, 310-Placement assembly, 311-Placement column, 312-Round hole, 313-Restriction column, 320-Drive assembly, 321-Motor, 322-Rotating shaft, 323-Bevel gear one, 330-Clamping assembly one, 331-Bevel gear two, 332-Threaded rod one, 333-Threaded sleeve plate one, 334-Connecting rod one, 335-Clamping plate one, 336-Anti-slip strip one, 340-Clamping assembly two, 341-Bevel gear three, 342-Threaded rod two, 343-Threaded sleeve plate two, 344-Connecting rod two, 345-Clamping plate two, 346-Anti-slip strip two. Detailed Implementation

[0026] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0027] Please see Figure 1-Figure 5 This utility model provides a punch hole mold for hardware accessories.

[0028] The system includes a worktable 100, a clamping device 300 for holding square tube hardware fittings at its top, and a punching device 200 for punching holes in the square tube hardware fittings held by the clamping device 300.

[0029] The top of the workbench 100 is fixedly equipped with a support plate 101 for supporting the punching assembly 210, and the front end of the support plate 101 is provided with a sliding groove 102.

[0030] The punching device 200 includes a punching assembly 210 disposed above the worktable 100 for punching square tube hardware fittings on the clamping device 300, and a buffer assembly 220 disposed at the bottom end of the punching assembly 210 for buffering the punching assembly 210.

[0031] The punching assembly 210 includes a top plate 213 disposed above the placement assembly 310 for vertical movement. A hydraulic cylinder 211 for driving the top plate 213 vertical movement is disposed at its top. A support frame 212 for supporting the hydraulic cylinder 211 is fixedly mounted at its top and welded to the top of the support plate 101. A slider 214 for sliding within a groove 102 is fixedly mounted at the rear end of the top plate 213. The bottom end of the top plate 213... A punching head 215 is fixedly installed for punching the hardware fittings mounted on the placement component 310; thus, when it is necessary to punch the square tube hardware fittings on the clamping device 300, the top plate 213 can be controlled to move downward by the hydraulic cylinder 211, and the slider 214 at the rear end of the top plate 213 moves in the slide groove 102, so that the top plate 213 can always move up and down; when the top plate 213 moves downward, it can drive the punching head 215 to punch the square tube hardware fittings.

[0032] The buffer assembly 220 includes a fixed cylinder 221 fixedly installed at the bottom of the top plate 213, and the cross-section of the cylinder cavity of the fixed cylinder 221 is stepped. A movable rod 222 for moving up and down is provided inside the cylinder cavity of the fixed cylinder 221. A limiting plate 223 for preventing the movable rod 222 from moving out of the fixed cylinder 221 is fixedly installed at the top end of the movable rod 222, and a fixed plate 225 for supporting the movable rod 222 is fixedly installed at the bottom end of the movable rod 222. A spring 224 for buffering the top plate 213 is fitted on the rod body of the movable rod 222. Thus, when the top plate 213 moves downward, the fixed cylinder 221 can be driven to move downward, and the movable rod 222 can buffer the top plate 213 under the elastic action of the spring 224.

[0033] The clamping device 300 includes a placement assembly 310 for supporting square tube hardware fittings. The placement assembly 310 is provided with a clamping assembly 330 for clamping the square tube hardware fittings mounted on the placement assembly 310. The placement assembly 310 is provided with a clamping assembly 340 for cooperating with the clamping assembly 330 to clamp the hardware fittings mounted on the placement assembly 310. The placement assembly 310 is provided with a driving assembly 320 for driving the clamping assembly 330 and the clamping assembly 340 to clamp the hardware fittings mounted on the placement assembly 310.

[0034] The placement assembly 310 includes a placement column 311 fixedly installed at the front end of the support plate 101. The upper and lower ends of the placement column 311 are fixedly installed with limiting columns 313 for restricting the square tube hardware fittings, so that when the square tube hardware fittings are fitted onto the placement column 311, the two limiting columns 313 can restrict the square tube hardware fittings. The top end of the placement column 311 is provided with a round hole 312 for assisting the punching head 215 to punch the square tube hardware fittings, and the round hole 312 is located in front of the two limiting columns 313.

[0035] The drive assembly 320 includes a rotating shaft 322 disposed within the placement column 311 for rotation, and the rotating shaft 322 is connected to the column body of the placement column 311 via a bearing to facilitate the rotation of the rotating shaft 322; a motor 321 for driving the rotating shaft 322 is disposed at the front end of the rotating shaft 322, and the shaft end of the output shaft of the motor 321 is connected to the front end of the rotating shaft 322 via a coupling; a bevel gear 323 is fixedly installed at the left end of the rotating shaft 322 for driving the clamping assembly 330 and the clamping assembly 340 to fix the square tube hardware fittings mounted on the placement column 311; thus, when it is necessary to clamp square tube hardware fittings of different widths, the rotating shaft 322 can be driven by the motor 321 to rotate, thereby driving the clamping assembly 330 and the clamping assembly 340 to fix the square tube hardware fittings mounted on the placement column 311, so as to facilitate the punching operation of the square tube hardware fittings by the punching device 200.

[0036] The clamping assembly 330 includes a threaded rod 332 disposed within the placement column 311 for rotation. The rod 332 has two symmetrical threads on its body, with the threads of the two sections having opposite directions of rotation. The rod 332 is provided with a bevel gear 331 for meshing with a bevel gear 323. The bevel gear 331 is provided with a threaded sleeve 333 for vertical movement on its body. There are two threaded sleeves 333, and the two threaded sleeves 333 can move in opposite directions at the two sections of the thread.

[0037] A connecting rod 334 is fixedly installed at the end of the threaded sleeve 333 away from the bevel gear 331. The connecting rod 334 moves synchronously with the threaded sleeve 333. There are four connecting rods 334, which are arranged in a circumferential array at the top of the threaded sleeve 333. A clamping plate 335 is provided at the top of the four connecting rods 334 for clamping and fixing the square tube hardware. An anti-slip strip 336 is fixedly installed at the end of the clamping plate 335 away from the connecting rods 334. There are several anti-slip strips 336.

[0038] The clamping assembly 340 includes a bevel gear 341 disposed in the placement column 311 for meshing with the bevel gear 331. A threaded rod 342 for rotation is fixedly installed at the end of the bevel gear 341 away from the bevel gear 331. The rod body of the threaded rod 342 is connected to the placement column 311 through a bearing to facilitate the rotation of the threaded rod 342. A threaded sleeve plate 343 for left and right movement is threadedly connected to the rod body of the threaded rod 342. Connecting rods 344 are fixedly installed on the threaded sleeve plate 343 away from the bevel gear 341. There are four connecting rods 344.

[0039] Four connecting rods 2 344 are fixedly mounted with clamping plates 2 345 at the ends away from the threaded sleeve plates 2 343 for clamping and fixing square tube hardware fittings. Anti-slip strips 2 346 are fixedly mounted on the ends of clamping plates 2 345 away from the connecting rods 2 344 for preventing slippage. Therefore, when punching square tube hardware fittings is required, the square tube hardware fittings can be fitted onto the placement column 311. Then, the motor 321 drives the rotating shaft 322 to rotate. With the meshing connection of bevel gear 1 323 and bevel gear 2 331, the threaded rod 1 332 can rotate, thus allowing the two threaded sleeves to be fixed. Plate 333 can move in opposite directions at the two threads on threaded rod 332; this controls the two clamping plates 335 to clamp and fix the upper and lower inner walls of the square tube hardware fitting; at the same time, the meshing connection between bevel gear 341 and bevel gear 323 allows threaded rod 342 to rotate, thereby controlling threaded sleeve 343 to drive clamping plate 345 to clamp and fix the left and right inner walls of the square tube hardware fitting; thus, it is possible to clamp and fix square tube hardware fittings of different widths to prevent the square tube hardware fittings from shaking during punching; finally, the punching device 200 is used to punch the square tube hardware fittings.

[0040] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A punching die for metal fittings, comprising a worktable (100), characterized in that: The top of the workbench (100) is provided with a clamping device (300) for clamping square tube hardware fittings, and the top of the workbench (100) is provided with a punching device (200) for punching holes in the square tube hardware fittings on the clamping device (300). The punching device (200) includes a punching assembly (210) disposed above the workbench (100) for punching square tube hardware fittings on the clamping device (300), and a buffer assembly (220) for buffering the punching assembly (210) is provided at the bottom end of the punching assembly (210). The clamping device (300) includes a placement assembly (310) for supporting square tube hardware fittings. The placement assembly (310) is provided with a clamping assembly one (330) for clamping the square tube hardware fittings mounted on the placement assembly (310). The placement assembly (310) is provided with a clamping assembly two (340) for cooperating with the clamping assembly one (330) to clamp the hardware fittings mounted on the placement assembly (310). The placement assembly (310) is provided with a driving assembly (320) for driving the clamping assembly one (330) and the clamping assembly two (340) to clamp the hardware fittings mounted on the placement assembly (310).

2. The punching die for a metal accessory according to claim 1, characterized in that: The top of the workbench (100) is fixedly equipped with a support plate (101) for supporting the punching assembly (210), and the front end of the support plate (101) is provided with a sliding groove (102).

3. The punching die for a metal accessory according to claim 2, characterized in that: The punching assembly (210) includes a top plate (213) disposed above the placement assembly (310) for moving up and down. The top of the top plate (213) is provided with a hydraulic cylinder (211) for driving the top plate (213) to move up and down. The top of the hydraulic cylinder (211) is fixedly mounted with a support frame (212) for supporting the hydraulic cylinder (211). The rear end of the top plate (213) is fixedly mounted with a slider (214) for sliding in a slide groove (102). The bottom end of the top plate (213) is fixedly mounted with a punching head (215) for punching the hardware fittings mounted on the placement assembly (310).

4. A punching die for hardware accessories according to claim 3, characterized in that: The buffer assembly (220) includes a fixed cylinder (221) fixedly installed at the bottom of the top plate (213). A movable rod (222) for moving up and down is provided in the cavity of the fixed cylinder (221). A limiting plate (223) for preventing the movable rod (222) from moving out of the fixed cylinder (221) is fixedly installed at the top end of the movable rod (222). A fixed plate (225) for supporting the movable rod (222) is fixedly installed at the bottom end of the movable rod (222). A spring (224) for buffering the top plate (213) is fitted on the rod body of the movable rod (222).

5. A punching die for metal fittings according to claim 3, characterized in that: The placement assembly (310) includes a placement column (311) fixedly installed at the front end of the support plate (101). The upper and lower ends of the placement column (311) are fixedly installed with limiting columns (313) for limiting the square tube hardware fittings. The top end of the placement column (311) is provided with a round hole (312) for assisting the punch head (215) to punch the square tube hardware fittings.

6. A punching die for metal fittings according to claim 5, characterized in that: The drive assembly (320) includes a rotating shaft (322) disposed inside the placement column (311) for rotation. The front end of the rotating shaft (322) is provided with a motor (321) for driving the rotating shaft (322) to rotate. The rear end of the rotating shaft (322) is fixedly installed with a bevel gear (323) for driving clamping assembly one (330) and clamping assembly two (340) to fix the square tube hardware fittings mounted on the placement column (311).

7. A punching die for metal fittings according to claim 6, characterized in that: The clamping assembly 1 (330) includes a threaded rod 1 (332) disposed within a placement column (311) for rotation. A bevel gear 2 (331) is disposed on the rod body of the threaded rod 1 (332) for meshing with a bevel gear 1 (323). A threaded sleeve 1 (333) for vertical movement is disposed on the rod body of the bevel gear 2 (331). There are two threaded sleeves 1 (333), and the threaded sleeves 1 (333) are located away from the bevel gear 2 (323). One end of 31) is fixedly installed with a connecting rod (334) for moving synchronously with the threaded sleeve plate (333), and there are four connecting rods (334). The top of the four connecting rods (334) is provided with a clamping plate (335) for clamping and fixing the square tube hardware. The end of the clamping plate (335) away from the connecting rod (334) is fixedly installed with an anti-slip strip (336) for preventing the clamping plate (335) from slipping.

8. A punching die for metal fittings according to claim 7, characterized in that: The clamping assembly 2 (340) includes a bevel gear 3 (341) disposed in the placement column (311) for meshing with bevel gear 2 (331). A threaded rod 2 (342) for rotation is fixedly installed at the end of the bevel gear 3 (341) away from the bevel gear 2 (331). A threaded sleeve 2 (343) for left and right movement is threadedly connected to the rod body of the threaded rod 2 (342). A connecting rod 2 (344) is fixedly installed on the moving part of the threaded sleeve 2 (343) away from the bevel gear 3 (341). There are four connecting rods 2 (344). A clamping plate 2 (345) for clamping and fixing square tube hardware is fixedly installed at the end of the four connecting rods 2 (344) away from the threaded sleeve 2 (343). An anti-slip strip 2 (346) for anti-slip of the clamping plate 2 (345) is fixedly installed at the end of the clamping plate 2 (345) away from the connecting rod 2 (344).

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