A punch guard

Abstract

The utility model discloses a kind of punching protective devices, it is related to blade punching field, including punching workbench and box type protection structure being set on punching workbench, the box type protection structure includes U-shaped plate, movable transparent plate and sliding roof, the U-shaped plate is fixed in punching workbench, the U-shaped opening of U-shaped plate is towards the front end surface of punching workbench, the bottom of movable transparent plate is rotatably installed on punching workbench, movable transparent plate can contact U-shaped plate and close the U-shaped opening of U-shaped plate, the top of U-shaped plate is oppositely provided with two sliding roof, can effectively block the metal scrap produced in punching process splashing, avoid causing mechanical injury to operator;Meanwhile, movable transparent plate of transparent material does not affect real-time observation processing state, can also prevent scrap into equipment gap, guarantee equipment running stability, greatly improve production safety.

Description

Technical Field

[0001] This utility model relates to the field of blade punching technology, specifically a punching protection device. Background Technology

[0002] In the metal processing industry, punching thin sheet workpieces such as cutting blades is a common process, and its processing quality and production safety directly affect the product qualification rate and production efficiency. Currently, cutting blade punching is mostly completed on a worktable using punching equipment. During the processing, the cutting blade needs to be positioned using a punching die, and then pressure is applied by the punch to achieve the punching operation. However, in traditional punching operations, the lack of or inadequate protective measures remains a key issue restricting production safety. In most processing scenarios, the punching area is exposed, and the high-speed movement of the punch easily generates flying metal fragments, which can not only cause mechanical injury to operators but also pose a risk of fragments entering the equipment gaps and affecting operational stability. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a punching protection device to solve the shortcomings of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a punching protection device, including a punching workbench and a box-type protective structure disposed on the punching workbench. The box-type protective structure includes a U-shaped plate, a movable transparent plate, and a sliding top plate. The U-shaped plate is fixed on the punching workbench, and the U-shaped opening of the U-shaped plate faces the front end face of the punching workbench. The bottom of the movable transparent plate is rotatably mounted on the punching workbench, and the movable transparent plate can contact the U-shaped plate to close the U-shaped opening of the U-shaped plate. Two sliding top plates are disposed opposite each other on the top of the U-shaped plate.

[0005] Furthermore, each of the sliding top plates is equipped with a cylinder, the cylinder body of which is horizontally mounted on the punching worktable, and the telescopic shaft of the cylinder is connected to the sliding top plate.

[0006] Furthermore, a punching die is provided on the punching workbench. The punching die is arranged inside a box-type protective structure. Several die slots are opened on the top surface of the punching die along its own length direction. The shape and size of the die slots match the shape and size of the blade. An annular support platform is fixed inside the die slots.

[0007] Furthermore, the mold groove has limit grooves on both side walls along the width direction of the punching mold. The bottom of the limit groove extends to the bottom of the annular support platform. A pressing block is provided in the limit groove. The pressing block can extend out of the limit groove to press the blade down on the annular support platform.

[0008] Furthermore, the punching die has two driving cavities along its width direction, the die groove is located between the two driving cavities, the limiting groove is connected to the driving cavities, the driving cavities are provided with driving rods, the end of the pressing block near the driving rod is provided with a vertical rod, the bottom of the vertical rod is connected to the driving rod through a push rod, and the pressing block can slide on the vertical rod.

[0009] Furthermore, the top surface of the pressing block is provided with an inclined surface, and a spring is sleeved on the vertical rod, with the two ends of the spring connected to the pressing block and the push rod respectively.

[0010] Furthermore, both sides of the punching die in the width direction are threaded with screws, and the tail of the screws is inserted into the drive cavity and rotatably connected to the drive rod.

[0011] Furthermore, the top surface of the punching workbench is provided with a positioning groove, the bottom of the punching die is adapted to the positioning groove, and the side wall of the punching die is fixed with a wing plate, which is connected to the punching workbench by bolts.

[0012] The beneficial effects of this utility model are: The box-type protective structure forms an axially enclosed processing space through the combination of a U-shaped plate, a movable transparent plate, and a sliding top plate, while a smaller space is formed above for the drill bit to pass through. This effectively blocks the splashing of metal debris generated during the punching process, preventing mechanical injury to operators. At the same time, the movable transparent plate, made of transparent material, does not affect the real-time observation of the processing status, and prevents debris from entering the equipment gaps, ensuring the stability of equipment operation and greatly improving production safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a punching protection device according to the present invention; Figure 2 This is a partial structural schematic diagram of a punching protection device according to the present invention; Figure 3 This is a top view of the punching die in a punching protection device according to this utility model; Figure 4 for Figure 3 Sectional view along line AA; In the diagram, 1-punching workbench, 2-U-shaped plate, 3-movable transparent plate, 4-sliding top plate, 5-cylinder, 6-punching die, 7-die groove, 8-ring support platform, 9-limiting groove, 10-lowering block, 11-drive cavity, 12-drive rod, 13-vertical rod, 14-push rod, 15-sloping surface, 16-spring, 17-screw, 18-wing plate. Detailed Implementation

[0014] Example 1 like Figures 1 to 4As shown, a punching protection device includes a punching workbench 1 and a box-type protective structure mounted on the punching workbench 1. The box-type protective structure includes a U-shaped plate 2, a movable transparent plate 3, and a sliding top plate 4. The U-shaped plate 2 is fixed to the punching workbench 1, with its U-shaped opening facing the front end of the punching workbench 1. The bottom of the movable transparent plate 3 is rotatably mounted on the punching workbench 1, and can contact the U-shaped plate 2 to close its U-shaped opening. Two sliding top plates 4 are arranged opposite each other on the top of the U-shaped plate 2. The bottom of the movable transparent plate 3 is hinged to the front end of the punching workbench 1. A latch lock is installed on the top of the movable transparent plate 3. The U-shaped plate 2 has a corresponding insertion hole at the position of the latch lock. When the movable transparent plate 3 contacts the U-shaped plate 2, the insertion hole is located on the movement path of the latch lock. The latch lock's pin is inserted into the insertion hole, connecting the movable transparent plate 3 and the U-shaped plate 2 together. When installing the blade... The movable transparent plate 3 is separated from the U-shaped plate 2, and the movable transparent plate 3 is deflected downwards, opening the U-shaped opening of the U-shaped plate 2. This creates a space for loading and unloading the blades on the front face of the punching worktable 1. After the blade fixture is placed on the punching worktable 1, the movable transparent plate 3 is deflected upwards and connected to the U-shaped plate 2. At this time, the distance between the two sliding top plates 4 is relatively large, allowing the punch of the punching machine tool arranged above the punching worktable 1 to enter the U-shaped plate 2 between the two sliding top plates 4. Then, the two sliding top plates 4 move closer to the punch but do not contact it, thus not completely closing the top opening of the U-shaped plate 2. This does not affect the punching operation of the blades and effectively prevents metal chips generated during the punching process from splashing, avoiding mechanical injury to the operator. At the same time, the movable transparent plate, made of transparent material, does not affect the real-time observation of the processing status and prevents chips from entering the equipment gaps, ensuring the stability of equipment operation and greatly improving production safety.

[0015] Furthermore, each sliding top plate 4 is equipped with a cylinder 5. The cylinder body of the cylinder 5 is horizontally mounted on the punching worktable 1. The telescopic shaft of the cylinder 5 is connected to the sliding top plate 4. The sliding top plate 4 is moved by the telescopic movement of the cylinder 5, which can adjust the distance between the two sliding top plates 4 and adapt to punches of different sizes of punching machines.

[0016] Example 2 Based on Example 1, such as Figures 2 to 4As shown, a punching die 6 is installed on the punching workbench 1. The punching die 6 is arranged inside a box-type protective structure. Several die slots 7 are formed on the top surface of the punching die 6 along its length. The shape and size of the die slots 7 match the shape and size of the cutting blade. An annular support platform 8 is fixed inside the die slot 7. A positioning groove is formed on the top surface of the punching workbench 1. The bottom of the punching die 6 is fitted into the positioning groove. A wing plate 18 is fixed to the side wall of the punching die 6. The wing plate 18 is connected to the punching workbench 1 by bolts. The cutting blade is placed into the die slots 7 in sequence. The shape and size of the mold groove 7 match the shape and size of the blade to be punched, thereby restricting the horizontal movement freedom of the blade through the mold groove 7. The blade is supported in the mold groove 7 by the annular support platform 8, so that the position of the blade to be punched is suspended, allowing the drill bit to pass through the blade smoothly to complete the punching. Multiple blades are punched at one time, and the punching machine punches multiple blades in sequence. During the punching process, the sliding top plate 4 moves in coordination with the movement of the drill bit, so that the sliding top plate 4 does not interfere with the drill bit.

[0017] Example 3 Based on Example 2, such as Figures 2 to 4As shown, the die groove 7 has limit grooves 9 on both side walls along the width direction of the punching die 6. The bottom of the limit groove 9 extends to the bottom of the annular support platform 8. A pressing block 10 is provided in the limit groove 9. The pressing block 10 can extend from the limit groove 9 to press the blade down on the annular support platform 8. Two driving cavities 11 are provided in the punching die 6 along its own width direction. The die groove 7 is located between the two driving cavities 11. The limit groove 9 connects to the driving cavities 11. A driving block is provided in the driving cavity 11. A vertical rod 13 passes through one end of the driving rod 12 and the lower pressure block 10 near the driving rod 12. The bottom of the vertical rod 13 is connected to the driving rod 12 via a push rod 14. The lower pressure block 10 can slide on the vertical rod 13. The top surface of the lower pressure block 10 has an inclined surface 15. A spring 16 is sleeved on the vertical rod 13. The two ends of the spring 16 are respectively connected to the lower pressure block 10 and the push rod 14. Both sides of the punching die 6 in the width direction are threaded with screws 17. The tail of the screw 17 passes into the driving cavity 1. The drive rod 12 is rotated internally. After the blade is placed into the mold groove 7, the screw 17 is tightened. The bottom of the drive rod 12 is provided with a sliding groove. The inner bottom wall of the drive cavity 11 is fixed with a slide rail. The slide rail slides and adapts to the sliding groove, thereby restricting the rotational freedom of the drive rod 12. When the screw 17 is screwed in, it only drives the drive rod 12 to move closer to the mold groove 7. The drive rod 12 drives all the lower pressing blocks 10 on one side to move closer to the mold groove 7 through the push rod 14. The lower pressing blocks 10 extend into the mold groove 7 through the limiting groove 9. During the movement of the lower pressing blocks 10, the inner top of the limiting groove 9 presses the inclined surface 15 of the lower pressing blocks 10. Under the action of the inclined surface 15, the lower pressing blocks 10 compress the spring 16 and move downward. Thus, the lower pressing blocks 10 move downward while extending into the mold groove 7, thereby pressing the blade onto the annular support platform 8, restricting the vertical movement freedom of the blade, and ensuring that the blade will not deviate during the punching process.

Claims

1. A punching protection device, characterized in that, The device includes a punching workbench (1) and a box-type protective structure set on the punching workbench (1). The box-type protective structure includes a U-shaped plate (2), a movable transparent plate (3), and a sliding top plate (4). The U-shaped plate (2) is fixed on the punching workbench (1). The U-shaped opening of the U-shaped plate (2) faces the front end of the punching workbench (1). The bottom of the movable transparent plate (3) is rotatably mounted on the punching workbench (1). The movable transparent plate (3) can contact the U-shaped plate (2) to close the U-shaped opening of the U-shaped plate (2). Two sliding top plates (4) are arranged opposite each other on the top of the U-shaped plate (2).

2. The punching protection device according to claim 1, characterized in that, Each of the sliding top plates (4) is equipped with a cylinder (5), the cylinder body of which is horizontally mounted on the punching worktable (1), and the telescopic shaft of the cylinder (5) is connected to the sliding top plate (4).

3. The punching protection device according to claim 1, characterized in that, The punching workbench (1) is provided with a punching mold (6), which is arranged in a box-type protective structure. The top surface of the punching mold (6) is provided with several mold grooves (7) along its own length direction. The shape and size of the mold grooves (7) match the shape and size of the blade. An annular support platform (8) is fixed in the mold grooves (7).

4. A punching protection device according to claim 3, characterized in that, The mold groove (7) has two side walls with limit grooves (9) along the width direction of the punching mold (6). The bottom of the limit groove (9) extends to the bottom of the annular support platform (8). A pressing block (10) is provided in the limit groove (9). The pressing block (10) can extend out from the limit groove (9) to press the blade down on the annular support platform (8).

5. A punching protection device according to claim 4, characterized in that, The punching die (6) has two driving cavities (11) along its width direction. The die groove (7) is located between the two driving cavities (11). The limiting groove (9) is connected to the driving cavity (11). A driving rod (12) is provided in the driving cavity (11). A vertical rod (13) is provided at one end of the lower pressing block (10) near the driving rod (12). The bottom of the vertical rod (13) is connected to the driving rod (12) through a push rod (14). The lower pressing block (10) can slide on the vertical rod (13).

6. A punching protection device according to claim 5, characterized in that, The top surface of the lower pressure block (10) is provided with an inclined surface (15), and a spring (16) is sleeved on the vertical rod (13). The two ends of the spring (16) are respectively connected to the lower pressure block (10) and the push rod (14).

7. A punching protection device according to claim 6, characterized in that, Both sides of the punching die (6) in the width direction are threaded with screws (17), and the tail of the screws (17) is inserted into the drive cavity (11) and rotatably connected to the drive rod (12).

8. A punching protection device according to claim 3, characterized in that, The top surface of the punching workbench (1) is provided with a positioning groove, the bottom of the punching mold (6) is adapted to the positioning groove, and the side wall of the punching mold (6) is fixed with a wing plate (18), which is connected to the punching workbench (1) by bolts.

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