Laser cutting machine with cutting part pressing mechanism

Abstract

The invention discloses a laser cutting machine with a cutting part pressing mechanism, and relates to the technical field of laser cutting, the laser cutting machine comprises a workbench, a fixing rod is fixedly connected to the top surface of the workbench, a first guide groove is formed in the side wall of the fixing rod, and a guide block is slidably connected into the first guide groove; and one end of an auxiliary rotating rod is rotationally connected to the side wall of the guide block, and a first sliding groove is formed in the other end of the auxiliary rotating rod. The problems of conical kerfs, deterioration of cutting quality of thick plates, increase of lines and roughness of cutting surfaces and misalignment of geometric accuracy are avoided while the focus position is guaranteed, loss of equipment is reduced, the service life of the equipment is prolonged, the device can adapt to fixation of various cutting parts, and even if the cutting track is an irregular space curve, the cutting precision is greatly improved. And the pressing effect is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a laser cutting machine with a cutting part clamping mechanism. Background Art

[0002] Thermal cutting refers to the method of using concentrated heat energy to melt or burn and separate materials. Thermal cutting is widely used in the industrial sector for cutting metal materials and processing parts, including metal laser cutting, which uses a high-energy laser beam to melt and vaporize the material, and uses airflow to blow away the dissolved material to achieve precise cutting of the material;

[0003] Therefore, it is necessary to consider the focal position of the laser beam, which directly affects the smoothness of the cutting surface and the width of the cutting slit. At the same time, it is also necessary to consider whether the laser beam is perpendicular to the workpiece. If it is not perpendicular, it will lead to tapered cutting slits, deterioration of thick plate cutting quality, increased cutting surface texture and roughness, and inaccurate geometric accuracy, and even aggravate equipment loss.

[0004] After searching, Chinese patent application CN119609406A discloses a metal welding and cutting device. Although it can automatically adjust the position of the laser focus and the material so that the laser focus is located on the material, and can effectively fix the curved material, it is fixed on a single straight line, and its fixed position is in the same plane. It cannot adapt to the fixation of the cutting part, especially when the cutting trajectory is an irregular curve. At the same time, it cannot ensure the perpendicularity of the laser beam and the cutting surface, and has the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a laser cutting machine with a cutting part clamping mechanism.

[0006] To solve the problems raised in the above-mentioned background art, the present invention provides the following technical solutions: A laser cutting machine with a cutting part pressing mechanism, including a workbench, on the top surface of the workbench is fixedly connected a fixed rod, on the side wall of the fixed rod is opened a first guide groove, in the first guide groove is slidably connected a guide block, one end of an auxiliary rotating rod is rotatably connected to the side wall of the guide block, on the other end of the auxiliary rotating rod is opened a first sliding groove, in the first sliding groove is sleeved a first cross bar, both ends of the first cross bar are rotatably connected to a fixed frame, one end of a fitting block is fixedly connected to the side wall of the fixed frame, the other end of the fitting block is rotatably connected to one end of a connecting rotating rod, on the other end of the connecting rotating rod is opened a second sliding groove, in the second sliding groove is sleeved a second cross bar, there are multiple fitting blocks, connecting rotating rods, second cross bars and fixed frames, and the second cross bar is rotatably connected to the adjacent fixed frame, multiple fitting blocks are all connected through connecting rotating rods, second cross bars and fixed frames, and on the second cross bar at the end is rotatably connected a slider, on the slider is opened a third card slot, and on both sides of multiple fitting blocks are fixedly connected rubber guide strips, on the rubber guide strips is slidably connected a sleeve frame, on the top surface of the sleeve frame is fixedly connected a telescopic rod, and on the output end of the telescopic rod is installed a laser;

[0007] On the fixed frame is opened a first card slot, on the fitting block is opened a second card slot, on the top surface of the second sliding groove is opened a limiting groove, on the side wall of the second sliding groove is slidably sleeved a first positioning rod, in the second cross bar are opened a first closed cavity and a second closed cavity, between the first closed cavity and the second closed cavity is communicated a first channel, in the first closed cavity is sleeved a first piston pad, on the top surface of the first piston pad is fixedly connected a pressing rod, on the top surface of the pressing rod is sleeved a clamping rod, between the bottom surface of the clamping rod and the pressing rod is fixedly connected a reset spring, in the second closed cavity is sleeved a second piston pad, on the end surface of the second piston pad is fixedly connected a second positioning rod, and on the outer surface of the connecting rotating rod is slidably sleeved a manual push rod.

[0008] As a further scheme of the present invention: The first sliding groove is the same as the second sliding groove, the auxiliary rotating rod is the same as the connecting rotating rod, the first cross bar is the same as the second cross bar, and the sleeve frame is slidably connected to the top surface of the fitting block.

[0009] As a further scheme of the present invention: The first positioning rod extends outside the connecting rotating rod, and the first positioning rod is fitted and connected with the second card slot, the second positioning rod is fitted and connected with the first card slot, the pressing rod is slidably connected with the inclined top surface of the limiting groove, and the top surface of the limiting groove is arranged in a Z shape.

[0010] As a further scheme of the present invention: The clamping rod is clamped with the top surface of the limiting groove, and the manual push rod is in contact connection with the clamping rod.

[0011] As a further solution of the present invention: a groove is provided on the side wall of the workbench, a connecting rod is slidably sleeved in the groove, a moving rod is fixedly connected to the end of the connecting rod, a second guide groove is provided on the side wall of the moving rod, and an inner cavity and a third sealed cavity are provided in the moving rod. The bottom end of the third sealed cavity is communicated with a pneumatic push rod. A motor is installed on the top surface of the moving rod. One end of a transmission shaft is fixedly connected to the output end of the motor. The other end of the transmission shaft is rotatably connected to a planetary bevel gear. The outer surface of the planetary bevel gear is meshed with a driven bevel gear and a driving bevel gear. A collar is fixedly connected to the top surface of the driven bevel gear. A driving gear is fixedly connected to the outer surface of the collar. The outer surface of the driving gear is meshed with a driven gear. A first lead screw is fixedly connected to the central axis of the driven gear. A second lead screw is fixedly connected to the bottom surface of the driving bevel gear. A first piston rod is meshed and sleeved on the outer surface of the second lead screw. A fourth sealed cavity is provided in the slider. A second channel is communicated between the fourth sealed cavity and the third clamping groove. A third piston gasket is sleeved in the third clamping groove. One end of a second piston rod is sleeved in the fourth sealed cavity. The other end of the second piston rod is fixedly connected to an engaging block.

[0012] As a further solution of the present invention: the connecting rod is arranged in a U shape, the pneumatic push rod is closely attached to the top surface of the groove, and the slider is slidably sleeved with the second guide groove.

[0013] As a further solution of the present invention: the transmission shaft is arranged in an L shape, and the transmission shaft penetrates through the driven bevel gear. The collar is rotatably sleeved with the transmission shaft.

[0014] As a further solution of the present invention: the slider is slidably sleeved with the first lead screw. The engaging block is located between the slider and the first lead screw, and the engaging block is meshed and connected with the first lead screw.

[0015] Adopting the above technical solution: compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, the transmission shaft on the motor drives the planetary bevel gear to revolve, so that the driven bevel gear on the planetary bevel gear drives the collar to rotate, so that the driving gear on the collar drives the driven gear to rotate. Furthermore, the first lead screw on the driven gear drives the engaging block and the slider to descend, so that the slider cooperates with the guide block to push a plurality of fitting blocks to descend, so that the fitting blocks press the cutting part of the material. Then, the telescopic rod drives the sleeve frame and the laser to translate, so that the laser moves along the track of the plurality of fitting blocks. At the same time, the sleeve frame continuously fits the fitting blocks, so that the laser on the telescopic rod is perpendicular to the cutting track on the surface of the material everywhere. While ensuring the focus position, the problems of conical cutting seams, deterioration of the cutting quality of thick plates, increase in the cutting surface texture and roughness, and geometric accuracy deviation are avoided, the loss of the equipment is reduced, and the service life of the equipment is prolonged.

[0017] 2. The fitting block of the present invention can be moved to the expected position in space. After the fitting block is moved to the designated position, pushing the fitting block along the central axis of the connecting rotating rod can fix the fitting block, the fixing frame, the connecting rotating rod, and the second cross bar, so that multiple fitting blocks can form a whole, and this whole is parallel to the trajectory of the cutting part, which is convenient for subsequent pressing of the cutting part and can adapt to the fixation of various cutting parts. Even if the cutting trajectory is an irregular space curve, it will not affect the pressing effect.

[0018] 3. The present invention drives the transmission bevel gear to rotate by itself through the planetary bevel gear, so that the second lead screw on the transmission bevel gear rotates by itself. The second lead screw is meshed and sleeved with the first piston rod, so that the first piston rod descends under the drive of the second lead screw, thereby compressing the air in the third closed cavity, making the pneumatic push rod communicated with the third closed cavity extend, making the pneumatic push rod squeeze the top surface of the groove, and further making the connecting rod and the moving rod fixed to the workbench. While pressing the cutting part, the moving rod can be fastened, so that the position of the whole formed by multiple fitting blocks is fixed, and there is no need to fix the moving rod separately. While simplifying the operation, the cutting efficiency of the material is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of a laser cutting machine with a cutting part pressing mechanism according to the present invention;

[0020] Figure 2 In the embodiment of the present invention Figure 1 is the enlarged view of part A structure;

[0021] Figure 3 is the semi-sectional schematic diagram of the fitting block structure in the embodiment of the present invention;

[0022] Figure 4 In the embodiment of the present invention Figure 3 is the enlarged view of part B structure;

[0023] Figure 5 is the semi-sectional schematic diagram of the cross bar structure in the embodiment of the present invention;

[0024] Figure 6 is the schematic diagram of the moving rod structure in the embodiment of the present invention;

[0025] Figure 7 is the semi-sectional schematic diagram of the slider structure in the embodiment of the present invention;

[0026] Figure 8 is the sectional view of the third closed cavity structure in the embodiment of the present invention;

[0027] Figure 9 In the embodiment of the present invention Figure 8 is the enlarged view of part C structure.

[0028] In the figure: 1, workbench; 2, fixed rod; 3, first guide groove; 4, auxiliary rotating rod; 5, guide block; 6, fixed frame; 7, first clamping groove; 8, fitting block; 9, second clamping groove; 10, connecting rotating rod; 11, second sliding groove; 12, limiting groove; 13, first positioning rod; 14, second cross bar; 15, first sealed cavity; 16, second sealed cavity; 17, first channel; 18, first piston pad; 19, pressing rod; 20, clamping rod; 21, second piston pad; 22, second positioning rod; 23, manual push rod; 24, rubber guide strip; 25, sleeve frame; 26, telescopic rod; 27, laser; 28, groove; 29, connecting rod; 30, moving rod; 31, second guide groove; 32, inner cavity; 33, third sealed cavity; 34, pneumatic push rod; 35, motor; 36, transmission shaft; 37, planetary bevel gear; 38, driven bevel gear; 39, driving bevel gear; 40, collar; 41, driving gear; 42, driven gear; 43, first lead screw; 44, second lead screw; 45, first piston rod; 46, slider; 47, third clamping groove; 48, fourth sealed cavity; 49, second channel; 50, third piston pad; 51, second piston rod; 52, meshing block. Detailed implementation manners

[0029] The following further describes the detailed implementation manners of the present invention in conjunction with the accompanying drawings. It should be noted here that the descriptions of these implementation manners are used to help understand the present invention, but do not constitute a limitation to the present invention. In addition, the technical features involved in the various implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Embodiment 1

[0031] Please refer to Figures 1 - 3 and Figure 7, the present invention provides a technical solution: a laser cutting machine with a cutting part pressing mechanism, including a workbench 1. A fixed rod 2 is fixedly connected to the top surface of the workbench 1. A first guide groove 3 is formed on the side wall of the fixed rod 2. A guide block 5 is slidably connected in the first guide groove 3. One end of an auxiliary rotating rod 4 is rotatably connected to the side wall of the guide block 5. A first sliding groove is formed at the other end of the auxiliary rotating rod 4. A first cross bar is sleeved in the first sliding groove. Both ends of the first cross bar are rotatably connected to a fixed frame 6. One end of a fitting block 8 is fixedly connected to the side wall of the fixed frame 6. The other end of the fitting block 8 is rotatably connected to one end of a connecting rotating rod 10. A second sliding groove 11 is formed at the other end of the connecting rotating rod 10. A second cross bar 14 is sleeved in the second sliding groove 11. The fitting block 8, the connecting rotating rod 10, the second cross bar 14 and the fixed frame 6 are provided in multiple numbers, and the second cross bar 14 is rotatably connected to the adjacent fixed frame 6. Multiple fitting blocks 8 are all connected through the connecting rotating rod 10, the second cross bar 14 and the fixed frame 6. A slider 46 is rotatably connected to the second cross bar 14 at the end. A third card slot 47 is formed on the slider 46. Rubber guide strips 24 are fixedly connected to both sides of multiple fitting blocks 8. A sleeve frame 25 is slidably connected to the rubber guide strips 24. A telescopic rod 26 is fixedly connected to the top surface of the sleeve frame 25. A laser 27 is installed at the output end of the telescopic rod 26.

[0032] Please refer to Figures 1 - 3 , the first sliding groove is the same as the second sliding groove 11, the auxiliary rotating rod 4 is the same as the connecting rotating rod 10, the first cross bar is the same as the second cross bar 14, and the sleeve frame 25 is slidably connected to the top surface of the fitting block 8.

[0033] Specifically, during the process of pressing the cutting part, the moving rod 30 is actively translated, so that the slider 46 on the moving rod 30 pushes the second cross bar 14 on the last fitting block 8. According to the above process, the second positioning rod 22 on the last fitting block 8 is inserted into the third card slot 47. While completing the fixation of the last fitting block 8, the second positioning rod 22 pushes the third piston pad 50 in the third card slot 47, so that the third piston pad 50 compresses the air in the third card slot 47, and the compressed air enters the fourth sealed cavity 48 through the second channel 49, so that the second piston rod 51 in the fourth sealed cavity 48 is pressured to translate, and pushes the engaging block 52 to be meshed and connected with the first lead screw 43. Then, the motor 35 on the moving rod 30 is started, so that the motor 35 drives the planetary bevel gear 37 to revolve through the transmission shaft 36, so that the driven bevel gear 38 on the planetary bevel gear 37 drives the collar 40 to rotate, so that the driving gear 41 on the collar 40 drives the driven gear 42 to rotate, and further makes the first lead screw 43 on the driven gear 42 drive the engaging block 52 and the slider 46 to descend, so that the slider 46 cooperates with the guide block 5 to drive multiple fitting blocks 8 to descend, so that the fitting blocks 8 press the cutting part of the material. Then, the telescopic rod 26 drives the sleeve frame 25 and the laser 27 to translate, so that the laser 27 moves along the trajectory of multiple fitting blocks 8. At the same time, the sleeve frame 25 continuously fits the fitting blocks 8, so that the laser 27 on the telescopic rod 26 is perpendicular to the cutting trajectory on the surface of the material everywhere, while ensuring the focus position, avoiding the problems of conical cut seams, deterioration of the cutting quality of thick plates, increase of the cutting surface texture and roughness, and geometric accuracy deviation, reducing the loss of the equipment and prolonging the service life of the equipment.

[0034] Embodiment 2

[0035] Please refer to Figures 3 - 5 As shown in, the present invention provides a technical solution: a laser cutting machine with a cutting part pressing mechanism. A first card slot 7 is opened on the fixed frame 6, a second card slot 9 is opened on the fitting block 8, a limiting slot 12 is opened on the top surface of the second chute 11, a first positioning rod 13 is slidably sleeved on the side wall of the second chute 11, a first sealed cavity 15 and a second sealed cavity 16 are opened in the second cross bar 14, a first channel 17 is communicated between the first sealed cavity 15 and the second sealed cavity 16, a first piston pad 18 is sleeved in the first sealed cavity 15, a pressure rod 19 is fixedly connected to the top surface of the first piston pad 18, a clamping rod 20 is sleeved on the top surface of the pressure rod 19, a return spring is fixedly connected between the bottom surface of the clamping rod 20 and the pressure rod 19, a second piston pad 21 is sleeved in the second sealed cavity 16, a second positioning rod 22 is fixedly connected to the end surface of the second piston pad 21, and a manual push rod 23 is slidably sleeved on the outer surface of the connecting rotating rod 10.

[0036] Please refer to Figure 3 and Figure 4, the first positioning rod 13 extends outside the connecting rotating rod 10, and the first positioning rod 13 is fitted and connected with the second card slot 9. The second positioning rod 22 is fitted and connected with the first card slot 7. The pressing rod 19 is slidably connected with the inclined top surface of the limiting slot 12, and the top surface of the limiting slot 12 is arranged in a Z shape.

[0037] Please refer to Figure 4 , the clamping rod 20 is clamped with the top surface of the limiting slot 12, and the manual push rod 23 is in contact connection with the clamping rod 20.

[0038] Specifically, during the process of moving the fitting block 8, rotate the fitting block 8 to make the fixing frame 6 on the fitting block 8 rotate around the central axis of the second cross bar 14, so as to adjust the position of the fitting block 8 in the x-z plane. Then rotate the fitting block 8 again to make the fixing frame 6 on the fitting block 8 drive the connecting rotating rod 10 to rotate self by the second cross bar 14, change the orientation of the fixing frame 6, and rotate the fitting block 8 around the central axis of the second cross bar 14 again, so as to adjust the position of the fitting block 8 in the x-y plane, so that the fitting block 8 can be moved to the expected position in space. At this time, push the fitting block 8 along the central axis of the connecting rotating rod 10, so that the fixing frame 6 on the fitting block 8 drives the second cross bar 14 to translate, the second cross bar 14 pushes the end of the first positioning rod 13, and the first positioning rod 13 is fitted and connected with the second card slot 9, so that the connecting rotating rod 10 is fixed to the fitting block 8. At the same time, with the translation of the second cross bar 14, the pressing rod 19 on the second cross bar 14 moves along the inclined top surface of the limiting slot 12, so that the inclined top surface of the limiting slot 12 presses down the pressing rod 19, so that the pressing rod 19 contracts into the first sealed cavity 15, and further the first piston pad 18 on the pressing rod 19 compresses the air in the first sealed cavity 15, so that the compressed air enters the second sealed cavity 16 through the first channel 17 and pushes the second piston pad 21 to translate, so that the second positioning rod 22 on the second piston pad 21 extends out of the second cross bar 14 and is fitted and connected with the first card slot 7 on the fixing frame 6, so that the second cross bar 14 is fixed to the fixing frame 6. When the pressing rod 19 moves to the end of the limiting slot 12, the clamping rod 20 on the pressing rod 19 is clamped with the top surface of the limiting slot 12 under the resilience of the return spring, so that the second cross bar 14 is fixed to the connecting rotating rod 10. To sum up, when the fitting block 8 moves to the specified position, push the fitting block 8 along the central axis of the connecting rotating rod 10, and the fitting block 8, the fixing frame 6, the connecting rotating rod 10 and the second cross bar 14 can be fixed, so that a plurality of fitting blocks 8 can form a whole, and the whole is parallel to the track of the cutting part, which is convenient for subsequent pressing of the cutting part and can adapt to the fixing of various cutting parts. Even if the cutting track is an irregular space curve, it does not affect the pressing effect.

[0039] Embodiment 3

[0040] Please refer to Figure 1 、 Figures 6 - 9, the present invention provides a technical solution: a laser cutting machine with a cutting part pressing mechanism. A groove 28 is formed on the side wall of the workbench 1. An adapter rod 29 is slidably sleeved in the groove 28. The end of the adapter rod 29 is fixedly connected with a moving rod 30. A second guide groove 31 is formed on the side wall of the moving rod 30. An inner cavity 32 and a third closed cavity 33 are formed in the moving rod 30. The bottom end of the third closed cavity 33 is communicated with a pneumatic push rod 34. A motor 35 is installed on the top surface of the moving rod 30. One end of a transmission shaft 36 is fixedly connected to the output end of the motor 35. The other end of the transmission shaft 36 is rotatably connected with a planetary bevel gear 37. The outer surface of the planetary bevel gear 37 is meshed with a driven bevel gear 38 and a driving bevel gear 39. A collar 40 is fixedly connected to the top surface of the driven bevel gear 38. A driving gear 41 is fixedly connected to the outer surface of the collar 40. The outer surface of the driving gear 41 is meshed with a driven gear 42. A first lead screw 43 is fixedly connected to the central axis of the driven gear 42. A second lead screw 44 is fixedly connected to the bottom surface of the driving bevel gear 39. A first piston rod 45 is meshed and sleeved on the outer surface of the second lead screw 44. A fourth closed cavity 48 is formed in the slider 46. A second channel 49 is communicated between the fourth closed cavity 48 and the third clamping groove 47. A third piston gasket 50 is sleeved in the third clamping groove 47. One end of a second piston rod 51 is sleeved in the fourth closed cavity 48. The other end of the second piston rod 51 is fixedly connected with an engaging block 52.

[0041] Please refer to Figure 1 and Figure 6 , the adapter rod 29 is arranged in a U shape. The pneumatic push rod 34 is in close contact with the top surface of the groove 28. The slider 46 is slidably sleeved in the second guide groove 31.

[0042] Please refer to Figure 9 , the transmission shaft 36 is arranged in an L shape, and the transmission shaft 36 penetrates through the driven bevel gear 38. The collar 40 is rotatably sleeved on the transmission shaft 36.

[0043] Please refer to Figure 7 , the slider 46 is slidably sleeved on the first lead screw 43. The engaging block 52 is located between the slider 46 and the first lead screw 43, and the engaging block 52 is meshed with the first lead screw 43.

[0044] Specifically, during the revolution of the planetary bevel gear 37, the planetary bevel gear 37 drives the transmission bevel gear 39 to rotate, causing the second lead screw 44 on the transmission bevel gear 39 to rotate. The second lead screw 44 is meshed and sleeved with the first piston rod 45, causing the first piston rod 45 to descend under the drive of the second lead screw 44, thereby compressing the air in the third sealed cavity 33, causing the pneumatic push rod 34 communicated with the third sealed cavity 33 to extend, causing the pneumatic push rod 34 to squeeze the top surface of the groove 28, and further causing the connecting rod 29 and the moving rod 30 to be fixed to the workbench 1. While pressing the cutting part, the moving rod 30 can be fastened, so that the position of the whole formed by the plurality of fitting blocks 8 is fixed, and there is no need to fix the moving rod 30 separately, which simplifies the operation and improves the cutting efficiency of the material.

[0045] Working principle and usage process of the present invention: When cutting materials, place the materials on the workbench 1, and make the fitting block 8 contact the top surface of the materials. At the same time, adjust the positions of multiple fitting blocks 8 according to the trajectory of the cutting part, so that multiple fitting blocks 8 are parallel to the cutting trajectory. The adjustment of the fitting block 8 is specifically as follows: Rotate the fitting block 8 to make the fixing frame 6 on the fitting block 8 rotate around the central axis of the second cross bar 14, so as to adjust the position of the fitting block 8 in the x-z plane. Then rotate the fitting block 8 again to make the fixing frame 6 on the fitting block 8 drive the connecting rotating rod 10 to rotate self, change the orientation of the fixing frame 6, and then make the fitting block 8 rotate around the central axis of the second cross bar 14 again, so as to adjust the position of the fitting block 8 in the x-y plane, so that the fitting block 8 can be moved to the expected position in space. At this time, push the fitting block 8 along the central axis of the connecting rotating rod 10, so that the fixing frame 6 on the fitting block 8 drives the second cross bar 14 to translate, make the second cross bar 14 push the end of the first positioning rod 13, and make the first positioning rod 13 fit and connect with the second card slot 9, so that the connecting rotating rod 10 is fixed to the fitting block 8. At the same time, as the second cross bar 14 translates, the pressing rod 19 on the second cross bar 14 moves along the inclined top surface of the limiting groove 12, so that the inclined top surface of the limiting groove 12 presses down the pressing rod 19, so that the pressing rod 19 contracts into the first closed cavity 15, and further makes the first piston pad 18 on the pressing rod 19 compress the air in the first closed cavity 15, so that the compressed air enters the second closed cavity 16 through the first channel 17, and pushes the second piston pad 21 to translate, so that the second positioning rod 22 on the second piston pad 21 extends out of the second cross bar 14 and fits with the first card slot 7 on the fixing frame 6, so that the second cross bar 14 is fixed to the fixing frame 6. When the pressing rod 19 moves to the end of the limiting groove 12, the clamping rod 20 on the pressing rod 19 is clamped with the top surface of the limiting groove 12 under the resilience of the return spring, so that the second cross bar 14 is fixed to the connecting rotating rod 10. To sum up, when the fitting block 8 moves to the designated position, push the fitting block 8 along the central axis of the connecting rotating rod 10, and the fitting block 8, the fixing frame 6, the connecting rotating rod 10 and the second cross bar 14 can be fixed, so that multiple fitting blocks 8 can form a whole, and this whole is parallel to the trajectory of the cutting part, which is convenient for subsequent pressing of the cutting part and can adapt to the fixation of various cutting parts. Even if the cutting trajectory is an irregular space curve, it does not affect the pressing effect;

[0046] During the adjustment of the above-mentioned bonding block 8, when the position of the last bonding block 8 is determined, the moving rod 30 is actively translated, so that the slider 46 on the moving rod 30 pushes the second cross bar 14 on the last bonding block 8. According to the above-mentioned process, the second positioning rod 22 on the last bonding block 8 is inserted into the third slot 47. When the last bonding block 8 is fixed, the second positioning rod 22 pushes the third piston pad 50 in the third slot 47, so that the third piston pad 50 compresses the air in the third slot 47, and the compressed air enters the fourth closed chamber 48 through the second channel 49, so that the fourth closed chamber The second piston rod 51 in 48 is pressed and translated, and pushes the meshing block 52 to mesh with the first screw rod 43, and then the motor 35 on the moving rod 30 is started, so that the motor 35 drives the planetary bevel gear 37 to revolve through the transmission shaft 36, so that the driven bevel gear 38 on the planetary bevel gear 37 drives the collar 40 to rotate, so that the driving gear 41 on the collar 40 drives the driven gear 42 to rotate, and then the first screw rod 43 on the driven gear 42 drives the meshing block 52 and the slider 46 to descend, so that the slider 46 cooperates with the guide block 5 to push the multiple bonding blocks 8 to descend, so that the bonding blocks 8 press the cutting part of the material;

[0047] After the cutting part of the above-mentioned material is pressed, the telescopic rod 26 drives the sleeve frame 25 and the laser 27 to move horizontally, so that the laser 27 moves along the tracks of multiple bonding blocks 8, and at the same time, the sleeve frame 25 is continuously bonded to the bonding blocks 8, so that the laser 27 on the telescopic rod 26 is perpendicular to the cutting track of the material surface everywhere, while ensuring the focal position, avoiding the problems of tapered cutting, deterioration of thick plate cutting quality, increase of cutting surface texture and roughness, and geometric precision inaccuracy, reducing the loss of equipment and extending the service life of the equipment;

[0048] During the revolution of the planetary bevel gear 37, the planetary bevel gear 37 drives the transmission bevel gear 39 to rotate, so that the second screw rod 44 on the transmission bevel gear 39 rotates, and the second screw rod 44 is meshed and sleeved with the first piston rod 45, so that the first piston rod 45 descends under the drive of the second screw rod 44, thereby compressing the air in the third closed chamber 33, so that the pneumatic push rod 34 connected to the third closed chamber 33 is extended, so that the pneumatic push rod 34 squeezes the top surface of the groove 28, and then the connecting rod 29 and the moving rod 30 are fixed to the workbench 1, and the moving rod 30 can be tightened while pressing the cutting part, so that the position of the whole formed by the multiple bonding blocks 8 is fixed, and there is no need to fix the moving rod 30 separately. While simplifying the operation, the cutting efficiency of the material is improved to complete the operation.

[0049] The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A laser cutting machine with a cutting part pressing mechanism, characterized in that, It includes a workbench (1), on the top surface of the workbench (1), a fixed rod (2) is fixedly connected. On the side wall of the fixed rod (2), a first guide groove (3) is provided. In the first guide groove (3), a guide block (5) is slidably connected. One end of an auxiliary rotating rod (4) is rotatably connected to the side wall of the guide block (5). A first cross bar is sleeved in a first chute opened at the other end of the auxiliary rotating rod (4). Both ends of the first cross bar are rotatably connected to a fixed frame (6). One end of a fitting block (8) is fixedly connected to the side wall of the fixed frame (6). The other end of the fitting block (8) is rotatably connected to one end of a connecting rotating rod (10). A second chute (11) is opened at the other end of the connecting rotating rod (10). A second cross bar (14) is sleeved in the second chute (11). The fitting block (8), the connecting rotating rod (10), the second cross bar (14) and the fixed frame (6) are provided in multiple numbers, and the second cross bar (14) is rotatably connected to an adjacent fixed frame (6). Between multiple fitting blocks (8), they are all connected through the connecting rotating rod (10), the second cross bar (14) and the fixed frame (6). A slider (46) is rotatably connected to the last second cross bar (14). A third card slot (47) is opened on the slider (46). Rubber guide strips (24) are fixedly connected to both sides of multiple fitting blocks (8). A sleeve frame (25) is slidably connected to the rubber guide strips (24). An expansion rod (26) is fixedly connected to the top surface of the sleeve frame (25). A laser (27) is installed at the output end of the expansion rod (26); A first card slot (7) is opened on the fixed frame (6). A second card slot (9) is opened on the fitting block (8). A limiting groove (12) is opened on the top surface of the second chute (11). A first positioning rod (13) is slidably sleeved on the side wall of the second chute (11). A first closed cavity (15) and a second closed cavity (16) are opened in the second cross bar (14). A first channel (17) communicates between the first closed cavity (15) and the second closed cavity (16). A first piston pad (18) is sleeved in the first closed cavity (15). A pressure rod (19) is fixedly connected to the top surface of the first piston pad (18). A clamping rod (20) is sleeved on the top surface of the pressure rod (19). A return spring is fixedly connected between the bottom surface of the clamping rod (20) and the pressure rod (19). A second piston pad (21) is sleeved in the second closed cavity (16). A second positioning rod (22) is fixedly connected to the end surface of the second piston pad (21). A manual push rod (23) is slidably sleeved on the outer surface of the connecting rotating rod (10).

2. The laser cutting machine with a cutting part pressing mechanism according to claim 1, wherein: The first chute is the same as the second chute (11). The auxiliary rotating rod (4) is the same as the connecting rotating rod (10). The first cross bar is the same as the second cross bar (14). The sleeve frame (25) is slidably connected to the top surface of the fitting block (8).

3. The laser cutting machine with a cutting part pressing mechanism according to claim 1, characterized in that: The first positioning rod (13) extends outside the connecting rotating rod (10), and the first positioning rod (13) is fitted and connected with the second clamping groove (9). The second positioning rod (22) is fitted and connected with the first clamping groove (7). The pressing rod (19) is slidably connected with the inclined top surface of the limiting groove (12), and the top surface of the limiting groove (12) is arranged in a Z shape.

4. A laser cutting machine with a cutting part pressing mechanism according to claim 1, characterized in that: The clamping rod (20) is clamped with the top surface of the limiting groove (12), and the manual push rod (23) is in contact connection with the clamping rod (20).

5. The laser cutting machine with a cutting part pressing mechanism according to claim 1, characterized in that: A groove (28) is formed in the side wall of the workbench (1). A connecting rod (29) is slidably sleeved in the groove (28). An end of the connecting rod (29) is fixedly connected with a moving rod (30). A second guide groove (31) is formed in the side wall of the moving rod (30). An inner cavity (32) and a third closed cavity (33) are formed in the moving rod (30). The bottom end of the third closed cavity (33) is communicated with a pneumatic push rod (34). A motor (35) is installed on the top surface of the moving rod (30). One end of a transmission shaft (36) is fixedly connected to the output end of the motor (35). The other end of the transmission shaft (36) is rotatably connected with a planetary bevel gear (37). The outer surface of the planetary bevel gear (37) is meshed with a driven bevel gear (38) and a driving bevel gear (39). A collar (40) is fixedly connected to the top surface of the driven bevel gear (38). A driving gear (41) is fixedly connected to the outer surface of the collar (40). The outer surface of the driving gear (41) is meshed with a driven gear (42). A first lead screw (43) is fixedly connected to the central axis of the driven gear (42). A second lead screw (44) is fixedly connected to the bottom surface of the driving bevel gear (39). A first piston rod (45) is meshed and sleeved on the outer surface of the second lead screw (44). A fourth closed cavity (48) is formed in the slider (46). A second channel (49) is communicated between the fourth closed cavity (48) and the third clamping groove (47). A third piston gasket (50) is sleeved in the third clamping groove (47). One end of a second piston rod (51) is sleeved in the fourth closed cavity (48). The other end of the second piston rod (51) is fixedly connected with an engaging block (52).

6. The laser cutting machine with a cutting part pressing mechanism according to claim 5, wherein: The connecting rod (29) is arranged in a U shape. The pneumatic push rod (34) is closely attached to the top surface of the groove (28). The slider (46) is slidably sleeved in the second guide groove (31).

7. A laser cutting machine with a cutting part pressing mechanism according to claim 5, characterized in that: The transmission shaft (36) is arranged in an L shape and penetrates through the driven bevel gear (38). The collar (40) is rotatably sleeved on the transmission shaft (36).

8. A laser cutting machine with a cutting part pressing mechanism according to claim 5, characterized in that: The slider (46) is slidably sleeved on the first lead screw (43). The engaging block (52) is located between the slider (46) and the first lead screw (43), and the engaging block (52) is meshed with the first lead screw (43).

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