Pneumatic clamping device for fixing cutting die of cutting machine

Abstract

The utility model discloses a pneumatic clamping device for cutting machine cutting die fixing, and relates to the technical field of cutting machine cutting die fixing, the pneumatic clamping device comprises a T-shaped clamping block and an elastic buffer mechanism, one side of the T-shaped clamping block is fixedly connected with the elastic buffer mechanism, the elastic buffer mechanism comprises a polyurethane buffer pad fixedly connected to one side of the T-shaped clamping block, and the polyurethane buffer pad is fixedly connected with the other side of the T-shaped clamping block. A wear-resistant steel base plate is fixedly connected to the interior of the polyurethane buffer cushion, an elastic supporting column is connected to the inner surface of the wear-resistant steel base plate in a penetrating mode, the T-shaped clamping block is fixed to piston rods of the symmetrical air cylinders, and when the T-shaped clamping block clamps the cutting die, the polyurethane buffer cushion absorbs vibration energy, and the wear-resistant steel base plate bears main pressure. Compared with an existing common pneumatic clamping device, the pneumatic clamping device for fixing the cutting die of the cutting machine has the advantages that high-frequency vibration generated by collision of the cutting die and a workpiece in the cutting process is effectively absorbed, synchronous cleaning can be achieved, the frequency of production interruption caused by manual shutdown cleaning is greatly reduced, and the cutting machine can keep continuous and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine die fixing technology, specifically a pneumatic clamping device for fixing cutting machine dies. Background Technology

[0002] The die fixing device for cutting machines is a key process to ensure stable positioning and accurate cutting of the die during processing. It is widely used in batch processing of flexible materials such as leather, cloth, rubber, and plastic. Its core objective is to prevent the die from shifting or deviating during high-speed stamping or reciprocating motion through a reliable fixing method, thereby ensuring cutting accuracy and production efficiency. However, existing die fixing devices for cutting machines have certain defects.

[0003] For example, a multi-piece clamping fully automatic positioning pneumatic fixture with application number CN201420501982.8 includes a main support plate, a pallet, a pneumatic positioning and clamping mechanism, clamping jaws of the clamping mechanism, a pneumatic unloading mechanism, and a clamping fixing plate. The main support plate is fixedly installed on both sides of the lower part of the pallet, and a cylinder matching the number of workpieces to be processed is installed in the middle of the lower part. A pneumatic unloading mechanism is installed at the position of the workpiece (shim) to be processed on the lower part of the pallet, and its power comes from the pneumatic positioning and clamping mechanism. A pneumatic positioning and clamping mechanism is installed in the middle of the upper part of the pallet, and the clamping fixing plate is installed on both sides of the upper part of the pallet. This fixture has good positioning accuracy and fast clamping speed, saving workpiece clamping time and improving production efficiency. However, the fixed contact surface of the pneumatic clamping device is in rigid contact, lacking buffer protection, and the clamping mechanism is easily damaged, resulting in poor clamping effect. In addition, during the cutting process, debris can easily enter the fixed gap, and debris accumulation can easily affect the cutting effect.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a pneumatic clamping device for fixing the die of a cutting machine. Utility Model Content

[0005] The purpose of this utility model is to provide a pneumatic clamping device for fixing the die of a cutting machine, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic clamping device for fixing a cutting die of a cutting machine, comprising a T-shaped clamping block and an elastic buffer mechanism. The elastic buffer mechanism is fixedly connected to one side of the T-shaped clamping block, and the elastic buffer mechanism includes a polyurethane buffer pad fixedly connected to one side of the T-shaped clamping block. A wear-resistant steel pad is fixedly connected inside the polyurethane buffer pad, and an elastic support column is connected through the inner surface of the wear-resistant steel pad.

[0007] Preferably, a symmetrical cylinder is fixedly connected to one side of the T-shaped clamping block, and a fixing frame is fixedly connected to one side of the symmetrical cylinder.

[0008] Preferably, a return spring is fixedly connected to one side of the fixing frame, and an air blowing mechanism is fixedly connected to the top of the fixing frame. The return spring connects the fixing frame to the T-shaped clamp.

[0009] Preferably, the air blowing mechanism includes an air blowing pump fixedly connected to the top of the fixed frame, and an air blowing pipe fixedly connected to one side of the air blowing pump. One end of the air blowing pipe is fixedly connected to a connecting cavity, and an air blowing nozzle is fixedly connected to one side of the connecting cavity.

[0010] Preferably, the bottom of the fixing frame is fixedly connected to a frame, and the frame has a sliding groove inside.

[0011] Preferably, a slider is slidably connected inside the slide groove, and a pushing groove is provided inside the frame on one side of the slide groove. The slider is fixed to the bottom of the T-shaped clamp.

[0012] Preferably, a grease storage box is fixedly connected to the top of the pushing groove, and a capillary oil tube is fixedly connected to one side of the grease storage box. A waste guide plate is provided at the middle of the frame, and a chip collection groove is provided at the bottom of the waste guide plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of the elastic buffer mechanism, not only significantly reduces the wear of equipment parts caused by vibration, but also significantly improves the processing environment, reduces noise pollution, and reduces blade breakage and wear caused by vibration, thereby extending the tool life by 20%. At the same time, the stable cutting environment also helps to improve the cutting accuracy and surface quality of the workpiece, reduce the defect rate, save enterprises tool replacement costs and maintenance time, and improve production efficiency and economic benefits.

[0015] 2. This utility model, through the setting of the air blowing mechanism, uses high-speed airflow to thoroughly blow clean the surface of the die, the worktable, and the gap of the clamping device, preventing these impurities from accumulating on the die cutting edge, the clamping contact surface, or between the transmission components of the equipment. This not only effectively reduces die wear caused by impurities and extends the service life of the die, but also prevents debris from getting stuck in the clamping device, avoiding problems such as unstable clamping and positioning deviation due to foreign object interference, ensuring that the clamping device always maintains a high-precision working state. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a top view structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the elastic buffer mechanism 2 of this utility model;

[0019] Figure 4 This is a schematic diagram of the air blowing mechanism 6 of this utility model.

[0020] In the diagram: 1. T-shaped clamping block; 2. Elastic buffer mechanism; 201. Polyurethane buffer pad; 202. Wear-resistant steel pad; 203. Elastic support column; 3. Symmetrical cylinder; 4. Fixing frame; 5. Return spring; 6. Air blowing mechanism; 601. Air blowing pump; 602. Air blowing pipe; 603. Connecting cavity; 604. Air blowing nozzle; 7. Frame; 8. Slide groove; 9. Slider; 10. Pushing groove; 11. Grease storage box; 12. Capillary oil tube; 13. Waste guide plate; 14. Chip collection groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a pneumatic clamping device for fixing a cutting die of a cutting machine includes a T-shaped clamping block 1 and an elastic buffer mechanism 2. The elastic buffer mechanism 2 is fixedly connected to one side of the T-shaped clamping block 1, and the elastic buffer mechanism 2 includes a polyurethane buffer pad 201 fixedly connected to one side of the T-shaped clamping block 1. A wear-resistant steel pad 202 is fixedly connected inside the polyurethane buffer pad 201, and an elastic support column 203 is connected through the inner surface of the wear-resistant steel pad 202. The T-shaped clamping block 1 is fixedly connected to the piston rod of the symmetrical cylinder 3. When the T-shaped clamping block 1 clamps the cutting die, the polyurethane buffer pad 201 absorbs vibration energy, the wear-resistant steel pad 202 bears the main pressure, and the elastic support column 203 provides adjustable buffering force. The greater the clamping force, the greater the compression of the buffer pad, forming dynamic vibration reduction.

[0023] like Figure 1 As shown, a symmetrical cylinder 3 is fixedly connected to one side of the T-shaped clamping block 1, and a fixed frame 4 is fixedly connected to one side of the symmetrical cylinder 3. A return spring 5 is fixedly connected to one side of the fixed frame 4, and an air blowing mechanism 6 is fixedly connected to the top of the fixed frame 4. The return spring 5 connects the fixed frame 4 to the T-shaped clamping block 1. The air source of the symmetrical cylinder 3 drives the piston rod 3 of the symmetrical cylinder to push out the T-shaped clamping block 1. The T-shaped clamping block 1 clamps the two sides of the die. The two sets of symmetrical cylinders 3 move synchronously to ensure uniform clamping force.

[0024] Furthermore, the air blowing mechanism 6 includes an air blowing pump 601 fixedly connected to the top of the fixed frame 4, and an air blowing pipe 602 fixedly connected to one side of the air blowing pump 601. One end of the air blowing pipe 602 is fixedly connected to a connecting cavity 603, and an air blowing nozzle 604 is fixedly connected to one side of the connecting cavity 603. Multiple sets of air blowing nozzles 604 are evenly arranged on one side of the connecting cavity 603. When the clamp is loosened, the air blowing pump 601 is started, and the air blowing nozzles 604 spray high-pressure air to remove debris from the gaps in the frame 7 and prevent debris from accumulating.

[0025] Furthermore, the bottom of the fixed frame 4 is fixedly connected to the frame 7, and the frame 7 has a sliding groove 8 inside. A slider 9 is slidably connected inside the sliding groove 8, and a pushing groove 10 is provided inside the frame 7 on one side of the sliding groove 8. The slider 9 is fixed to the bottom of the T-shaped clamping block 1. The slider 9 drives the T-shaped clamping block 1 to move along the inner wall of the sliding groove 8, so that the T-shaped clamping block 1 is more stable when clamping the die and will not be misaligned. A pushing block is fixedly connected to one side of the pushing groove 10, and the pushing block is fixed to the bottom of the T-shaped clamping block 1 and moves with the T-shaped clamping block 1.

[0026] Furthermore, a grease storage box 11 is fixedly connected to the top of the push groove 10, and a capillary oil pipe 12 is fixedly connected to one side of the grease storage box 11. A waste guide plate 13 is provided in the middle of the frame 7, and a chip collection groove 14 is provided at the bottom of the waste guide plate 13. When the T-shaped clamping block 1 moves, the push block squeezes the grease storage box 11 to discharge oil through the capillary oil pipe 12. The slide groove 8 is automatically lubricated once every time the T-shaped clamping block 1 clamps. The waste falls into the chip collection groove 14 along the guide plate for easy cleaning.

[0027] Working principle: When using the pneumatic clamping device for fixing the die-cutting machine, first place the die-cutting mold on the surface of the frame 7. Start the symmetrical cylinder 3 to drive the slider 9 at the bottom of the T-shaped clamping block 1 to move on the inner surface of the slide groove 8. When the die-cutting mold contacts the elastic buffer mechanism 2, the polyurethane buffer pad 201, the wear-resistant steel pad 202, and the elastic support column 203 work together to increase the pressure that the clamping device can withstand. Then, during the cutting process, start the air pump 601 of the air blowing mechanism 6 at the top of the fixing frame 4, and blow air through the air blowing pipe 602. After the gas is transmitted to the connecting cavity 603, it is evenly sprayed out through the air nozzle 604, blowing the debris generated by the cutting die to the waste guide plate 13. After passing through the waste guide plate 13, it is transported to the chip collection groove 14. Finally, during the operation of the T-shaped clamping block 1, the pushing block inside the pushing groove 10 compresses the grease storage box 11. The lubricant inside the grease storage box 11 is squeezed and then transported to the slide groove 8 through the capillary oil tube 12 to ensure the smooth operation of the slider 9. This is the working principle of the pneumatic clamping device for fixing the cutting die of the cutting machine.

Claims

1. A pneumatic clamping device for fixing a cutting die of a cutting machine, comprising a T-shaped clamping block (1) and an elastic buffer mechanism (2), characterized in that, An elastic buffer mechanism (2) is fixedly connected to one side of the T-shaped clamp (1), and the elastic buffer mechanism (2) includes a polyurethane buffer pad (201) fixedly connected to one side of the T-shaped clamp (1). A wear-resistant steel pad (202) is fixedly connected inside the polyurethane buffer pad (201), and an elastic support column (203) is connected through the inner surface of the wear-resistant steel pad (202).

2. The pneumatic clamping device for fixing the die-cutting machine according to claim 1, characterized in that, A symmetrical cylinder (3) is fixedly connected to one side of the T-shaped clamp (1), and a fixing frame (4) is fixedly connected to one side of the symmetrical cylinder (3).

3. The pneumatic clamping device for fixing the die-cutting die of a cutting machine according to claim 2, characterized in that, A return spring (5) is fixedly connected to one side of the fixed frame (4), and an air blowing mechanism (6) is fixedly connected to the top of the fixed frame (4).

4. The pneumatic clamping device for fixing the die-cutting machine according to claim 3, characterized in that, The air blowing mechanism (6) includes an air blowing pump (601) fixedly connected to the top of the fixed frame (4), and an air blowing pipe (602) is fixedly connected to one side of the air blowing pump (601). One end of the air blowing pipe (602) is fixedly connected to a connecting cavity (603), and an air blowing nozzle (604) is fixedly connected to one side of the connecting cavity (603).

5. A pneumatic clamping device for fixing a cutting machine die according to claim 3, characterized in that, The bottom of the fixed frame (4) is fixedly connected to the frame (7), and the frame (7) has a sliding groove (8) inside.

6. The pneumatic clamping device for fixing the die-cutting machine according to claim 5, characterized in that, The slide groove (8) is slidably connected to a slider (9), and a push groove (10) is provided inside the frame (7) on one side of the slide groove (8).

7. A pneumatic clamping device for fixing a cutting machine die according to claim 6, characterized in that, The top of the push groove (10) is fixedly connected to an oil storage box (11), and a capillary oil tube (12) is fixedly connected to one side of the oil storage box (11). A waste guide plate (13) is provided at the middle of the frame (7), and a chip collection groove (14) is provided at the bottom of the waste guide plate (13).

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