Cutting device for sheet metal processing

[0023] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0024] Such as figure 1 As shown, a cutting equipment for sheet metal processing includes a bed body 1, a walking frame 2 and a laser cutting head 3. The bed body 1 is provided with a clamping device 4 and a diversion hole 5, and the bed body 1 is provided with a water circulation mechanism , The outer periphery of the laser cutting head 3 is provided with a protective mechanism, which is connected with the water circulation mechanism;

[0025] Such as figure 2 As shown, the protection mechanism includes a clamp 6, a hollow ring 7 and several water spray components. The clamp 6 is set on the laser cutting head 3, the hollow ring 7 is coaxially arranged on the outer periphery of the clamp 6, and the inner side of the hollow ring 7 is arranged There is a water inlet 8, the hollow ring 7 and the clamp 6 are connected by a connecting rod 9, and the water spray components are evenly distributed along the circumference of the hollow ring 7. The water spray components include a connecting seat 10, a water curtain nozzle 11 and a connecting pipe 12. The connecting seat 10 is fixed on the hollow ring 7, the water curtain sprinkler 11 is rotatably installed on the connecting seat 10, and the water outlet of the water curtain sprinkler 11 faces the bed 1, which communicates with the hollow ring 7 through the connecting pipe 12;

[0026] When in use, the clamp 6 is put on the laser cutting head 3 and locked and fixed. The water circulation mechanism supplies water to the water inlet 8 of the hollow ring 7, and the water flow in the hollow ring 7 is sprayed downward from the water curtain nozzle 11 through the connecting pipe 12 To form an annular water curtain, the water curtain nozzle 11 is rotated in advance to adjust the angle, and the size of the annular water curtain can also be changed. When cutting, when high-temperature sparks splash outwards, they will be intercepted by the water curtain and quickly cool down. Because the water flow always flows downwards, the water flow will exert a downward force on the sparks, making it difficult for the sparks to penetrate the water curtain, but will be moved down by the water. Wash away to avoid the adverse effects of high temperature sparks. In addition, the water flow can also cool the sheet metal parts to avoid the expansion and deformation of the cutting opening caused by the residual heat during cutting, which affects the cutting accuracy.

[0027] Such as image 3 As shown, the water circulation mechanism includes a filter screen 13, a water tank 14, a circulating pump 15, and a water supply connector 16. The filter screen 13 is in the shape of an arc with an arc facing upwards. The filter screen 13 is movably arranged below the diversion hole 5. The water tank 14 The water tank 14 and the circulating pump 15 are all fixed at the bottom of the bed 1, the opening of the water tank 14 is located at the bottom of the filter screen 13, the water supply connector 16 is butted with the water inlet 8, and the water supply connector 16, the circulating pump 15 and the water tank 14 are connected through the water pipe 17 in sequence.

[0028] When in use, the circulating pump 15 pumps water from the water tank 14, and delivers the clean water to the protection mechanism through the water pipe 17 and the water supply joint 16, and protects against splashing sparks. The sparks and water flow are mixed together and flow into the filter 13 through the diversion hole 5. In the process, waste debris such as sparks is intercepted by the filter 13, and the clean water continues to flow into the water tank 14 for recycling. The arc-shaped filter screen 13 facilitates the accumulation of waste debris. After the cutting is completed, the filter screen 13 can be drawn out to clean the waste debris.

[0029] Such as Figure 4 As shown, there are two clamping devices 4, the two clamping devices 4 are respectively placed on both sides of the bed body 1, and the diversion hole 5 is located between the two clamping devices 4. The two clamping devices 4 can fix both sides of the sheet metal parts, so that the sheet metal parts receive uniform force and improve the fixing effect.

[0030] The clamping device 4 includes a jacking cylinder 401, a clamping plate 402 and a number of pressing components. The jacking cylinder 401 is horizontally installed on the bed 1, and the clamping plate 402 is vertically arranged on the side of the jacking cylinder 401 close to the guide hole 5. The clamping plate 402 is connected to the jacking cylinder 401, and the pressing components are arranged side by side above the clamping plate 402. The pressing components include a fixing frame 403, a pressing cylinder 404 and a pressing plate 405. The fixing frame 403 is fixed above the clamping plate 402 and pressing the cylinder The 404 is vertically installed on the fixing frame 403, the pressing plate 405 is horizontally arranged on the side of the clamping plate 402 close to the diversion hole 5, and the pressing plate 405 is connected with the pressing cylinder 404. The jacking cylinder 401 can drive the clamping plate 402 to move left and right, and the pressing down cylinder 404 can drive the pressing plate 405 to move up and down. By adjusting the positions of the clamping plate 402 and the pressing plate 405, sheet metal parts of different shapes and sizes can be fixed, which has a wide range of applications. Driven by an air cylinder, the force is stable and the fixing effect is good.

[0031] A rubber layer 406 is provided on the side of the splint 402 close to the diversion hole 5 and under the pressure plate 405. The rubber layer 406 can protect the contact surface of the sheet metal part to avoid deformation and damage of the sheet metal part.

[0032] The connecting seat 10 is U-shaped, the water curtain nozzle 11 is arranged in the U-shaped mouth of the connecting seat 10, and the water curtain nozzle 11 is hinged to the connecting seat 10.

[0033] The connecting rod 9 is a telescopic rod, and its two ends are respectively fixedly connected with the hollow ring 7 and the clamp 6. When the clamp 6 is sleeved on different laser cutting heads 3, the distance between the clamp 6 and the hollow ring 7 is adjusted by the expansion and contraction of the connecting rod 9.

[0034] The filter screen 13 is a stainless steel filter screen. The stainless steel filter 13 has good corrosion resistance, is not easily deformed and damaged, and has a long service life.

[0035] The filter screen 13 is provided with a handle 18, and both sides are provided with guide units. The guide unit includes a guide rail 19 and a slider 20. The guide rail 19 is horizontally installed in the bed body 1, and the slider 20 is fixed on the filter screen 13. 20 is slidably connected to the guide rail 19. The handle 18 is provided to facilitate the operator to withdraw the filter screen 13 from the bed body 1 for waste recovery treatment. The guide rail 19 and the sliding block 20 can guide the movement of the filter screen 13 to make it move steadily in the front and rear directions.

[0036] The top and bottom of the water tank 14 are respectively provided with an inlet pipe 21 and a drain pipe 22, and both the inlet pipe 21 and the drain pipe 22 are provided with a control valve 23. The water inlet pipe 21 is used for filling water into the water tank 14, the drain pipe 22 is used for emptying the accumulated water in the water tank 14, and the control valve 23 is used for controlling the opening and closing of the water inlet pipe 21 or the drain pipe 22.

[0037] A man-machine interface 24 is provided on one side of the bed body 1. To facilitate the operator to control the equipment.

[0038] Working principle: When in use, place the sheet metal on the bed 1, the operator controls it through the man-machine interface 24, and the two splints 402 are driven by the respective push-in cylinders 401 to clamp the two sides of the sheet metal. The pressing air cylinder 404 drives the pressing plate 405 to press the upper end surface of the sheet metal part to realize the fixation of the sheet metal part. When cutting, the walking frame 2 drives the laser cutting head 3 to move and cut. At the same time, the circulating pump 15 pumps water from the water tank 14, and delivers the clean water to the hollow ring 7 through the water pipe 17 and the water supply connector 16. The water curtain nozzle on the connecting seat 10 is adjusted in advance At an angle of 11, the clear water in the hollow ring 7 is delivered to the water curtain nozzle 11 through the connecting pipe 12, the water curtain nozzle 11 sprays downwards, and a plurality of water curtain nozzles 11 together form an annular water curtain. When the high-temperature sparks generated by cutting splash outward, they will be intercepted by the water curtain and quickly cool down. Since the water flow always flows downwards, the water flow will exert a downward force on the sparks, and the sparks will be mixed into the water flow and flow downwards. At the same time, the clean water can also cool the cut of the sheet metal parts. Splashing waste debris such as sparks fall into the filter screen 13 from the guide hole 5 with the water flow. The curved filter screen 13 is conducive to the accumulation of waste debris, while the clean water falls from the bottom of the filter screen 13 into the water tank 14 for circulation. use. After the cutting is finished, the filter screen 13 is drawn out of the bed 1 through the handle 18 to clean up the accumulated waste.

[0039] The present invention is not limited to the above-mentioned specific implementations. For those of ordinary skill in the art, starting from the above-mentioned concept and without creative work, all the changes made fall within the protection scope of the present invention.