Plate positioning device for laser cutting

Abstract

The invention belongs to the technical field of laser cutting, and discloses a plate positioning device for laser cutting, which comprises a bottom frame, a top frame and a laser cutting part, a transverse movement control part is fixedly arranged in the bottom frame, and a transverse movement assembly is slidably mounted at the top of the transverse movement control part. The side face of the plate is clamped and fixed, and after side clamping, gas in the positioning seats is guided and sucked by cooperating with the gas suction effect after reversing, so that the plate subjected to side clamping is adsorbed and fixed to the tops of the positioning seats, and after being matched with cutting of the laser cutting part, the two cut plates are still stably adsorbed to the tops of the positioning seats on the two sides; the stable positioning function after cutting is avoided, the cut plate is still fixed to the top of the positioning seat in a non-offset mode, meanwhile, vibration is effectively avoided during cutting due to the double positioning effect, the comprehensive cutting stability is high, absolute stability of all sets of plate blocks and plates can be kept after cutting, and the using effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting, and specifically relates to a sheet positioning device for laser cutting. Background Art

[0002] A sheet positioning device for laser cutting is an auxiliary device specifically designed for laser cutting operations. Its main function is to ensure that the sheet can be stably and accurately positioned on the workbench during the laser cutting process, thereby avoiding cutting deviations and improving cutting accuracy and efficiency.

[0003] In the existing sheet positioning device for laser cutting, when in use, it adopts a side clamping method to position and fix the workpiece to be cut on the carrier table, and cooperates with a moving laser cutting part to achieve the cutting process. However, in the actual cutting process, the force on the sheet positioning is mainly in the horizontal direction. And after cutting, the sheet is divided into two parts, with a cross-section appearing in the middle. When the flatness of the cross-section is insufficient, the squeezing and clamping forces on both sides cause the sheet to shift, and the relative clamping ability weakens. And when subjected to a force perpendicular to the side clamping force direction, the sheet is prone to move. And in the later stage of actual cutting, the two plate sheets with weakened connection vibrate in the vertical plane, and the actual cutting stability is poor. At the same time, the cross-section after cutting is pressed and adhered by the two half sheets on both sides. When the cross-section is rough and uneven, it is impossible to directly grind the cross-section. It is often necessary to take out the sheet and reposition it and perform separate cross-section grinding treatment. The comprehensive positioning and use stability is poor, the function is single, and the use effect is not good. Summary of the Invention

[0004] The purpose of the present invention is to provide a sheet positioning device for laser cutting to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A sheet positioning device for laser cutting, including a bottom frame, a top frame, and a laser cutting part. A lateral movement control part is fixedly arranged inside the bottom frame. A transverse movement assembly is slidably installed on the top of the lateral movement control part. Positioning assemblies are arranged on both sides above the transverse movement assembly. One end of the positioning assembly is movably sleeved with the transverse movement assembly. A grinding treatment assembly is fixedly arranged on the top of the bottom frame. A distributed air suction assembly is fixedly arranged on the top of the transverse movement assembly. The distributed air suction assembly has two suction ends. One suction end sucks the air inside the transverse movement assembly, and the other suction end sucks the gas in the positioning assembly.

[0006] The positioning assembly includes a positioning seat, an adaptation groove, air holes, a communication cavity, a curved arm, a partition frame, a first spring, and a curved cavity. The positioning assembly simultaneously adsorbs and clamps the sheet placed on the top.

[0007] Preferably, the top frame is fixed to the top of the bottom frame, and the laser cutting part is arranged at the bottom of the top frame.

[0008] Preferably, the grinding treatment assembly includes a bracket, a grinding disc, and a rotating motor. The bracket is fixed to the top of the bottom frame. The grinding disc is rotatably installed in the bracket. The rotating motor is fixed to the side of the bracket and drives the grinding disc to rotate. The bottom side of the grinding disc is located on the moving path of the positioning assembly.

[0009] Preferably, the lateral movement control part includes a servo motor and a lead screw. The servo motor drives the lead screw to rotate. The lateral movement control part further includes limit baffles located on both sides of the lead screw.

[0010] Preferably, the transverse movement assembly includes a sliding seat, a slider, an internal cavity, and a sealing sleeve. The internal cavity is opened inside the sliding seat. The slider is fixedly connected to the bottom of the sliding seat. The slider is slidably sleeved between two groups of limit baffles. The slider is threadedly sleeved with the lead screw. The sealing sleeve is fixedly installed at both ends of the sliding seat.

[0011] Preferably, one end of the curved arm is fixed to the bottom of the positioning seat, and the other end is movably sleeved in the internal cavity of the sliding seat. The partition frame is fixedly sleeved in the internal cavity. One end of the first spring is fixedly connected to the partition frame and the other end is fixedly connected to the curved arm. The fitting groove is opened at the top of the positioning seat. The air hole is opened at the top of the positioning seat. The communication cavity is opened inside the positioning seat. The curved cavity is opened inside the curved arm. Both ends of the communication cavity are respectively communicated with the curved cavity and the air hole.

[0012] Preferably, the distributed air suction assembly includes a vacuum pump, a reversing valve, a main pipe, an intermediate frame, and side pipes. The vacuum pump is fixed to the top of the sliding seat. The reversing valve has two air suction ends. One air suction end is communicated with the main pipe, and the other air suction end is communicated with the intermediate frame. The side pipes are symmetrically distributed on both sides of the intermediate frame. One end of the side pipe is communicated with the intermediate frame and the other end is fixed to the curved arm and communicated with the curved cavity. The main pipe is fixed to the top of the sliding seat and communicated with the internal cavity.

[0013] Preferably, a reversing assembly is fixedly arranged on the side of the curved arm. One end of the reversing assembly is movably sleeved in the curved arm and fixedly connected with a dust removal assembly. The reversing assembly is communicated with the dust removal assembly. The dust removal assembly is located below the positioning seat.

[0014] Preferably, the commutation assembly includes an electric push rod, a distribution sleeve, a sealing frame, a first through port and a second curved port. The electric push rod is fixed on the outer side surface of the curved arm through a mounting frame. The movable end of the electric push rod is fixedly connected to the distribution sleeve. The distribution sleeve is movably sleeved inside the curved arm. The sealing frame is fixed on the other side of the curved arm. The first through port is opened at the top of the distribution sleeve and penetrates through the bottom of the distribution sleeve. The second curved port is opened inside the distribution sleeve. One end of the second curved port is opened at the bottom of the distribution sleeve, and the other end is located at the end of the distribution sleeve. The second curved port is communicated with the dust removal assembly.

[0015] Preferably, the dust removal assembly includes a processing sleeve and a suction pipe. The processing sleeve is fixed at the end of the distribution sleeve and is communicated with the second curved port. A filtering part is arranged inside the distribution sleeve. The suction pipe is fixedly connected to the end of the processing sleeve and is communicated with the processing sleeve.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. By utilizing the cooperative action of the positioning assembly, the transverse movement assembly and the distributed suction assembly, after placing the board, the distributed suction assembly controls the two-side positioning assemblies to approach each other, so as to realize the clamping and fixing of the side surfaces of the board. After the side clamping, with the suction effect after commutation, the gas in the positioning seat is guided and sucked, so that the board after side clamping is adsorbed and fixed on the top of the positioning seat. After being cut by the laser cutting part, the two cut board plates still stably adsorb on the tops of the two-side positioning seats, avoiding the loss of stable positioning after cutting. The cut board still remains fixed on the top of the positioning seat without deviation. At the same time, the double positioning effect effectively avoids vibration during cutting, the overall cutting stability is high, and the absolute stability of each group of board plates can be maintained after cutting, and the use effect is good.

[0018] 2. By utilizing the above double fixing effect and cooperating with the grinding and processing assembly arranged in the middle, after the board is cut, on the one hand, the negative pressure adsorption effect is used to keep the two half-board plates stable, and on the other hand, the two-side positioning assemblies are separated from each other and reset, so as to move the two-side board plates away and open, expanding the distance between the two half-board plates, and moving through the grinding and processing assembly under the transverse movement, cooperating with the rotating grinding disc, to quickly grind the cutting sections of the two half-board plates. The actual grinding and processing is simple and convenient, without special positioning treatment, and continuous processing is realized by using the previous positioning effect, and the use effect is good.

[0019] 3. In the present invention, firstly, by making use of the suction effect of the distributive suction component again, in cooperation with the functions of the commutation component and the dust removal component, when cutting off and performing grinding treatment during lateral movement, while maintaining the stable negative pressure adsorption and fixation inside the positioning seat in cooperation with the commutation component, the direction of vacuum suction is switched to guide the suction from the dust removal component towards the grinding area for inhalation treatment, synchronously sucking in the dust during the grinding process, and completing the filtration treatment in cooperation with the filtering part in the treatment sleeve. Without the need to additionally set up dust removal power, during the rapid grinding treatment after stable cutting off, dust removal treatment is also synchronously achieved, and the use effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is an installation schematic diagram of the bottom seat and the lateral movement control part of the present invention;

[0022] Figure 3 is an installation schematic diagram of the positioning component and the lateral movement component of the present invention;

[0023] Figure 4 is a sectional schematic diagram of the positioning component and the lateral movement component of the present invention;

[0024] Figure 5 is a schematic diagram of the lateral movement component and the distributive suction component of the present invention;

[0025] Figure 6 is a sectional schematic diagram of the sliding seat of the present invention;

[0026] Figure 7 is a sectional schematic diagram of the positioning component of the present invention;

[0027] Figure 8 is a schematic diagram of the commutation component and the dust removal component of the present invention;

[0028] Figure 9 is a sectional schematic diagram of the distribution sleeve of the present invention;

[0029] Figure 10 is a schematic diagram of the grinding treatment component of the present invention.

[0030] In the figure: 1, bottom frame; 2, top frame; 3, laser cutting part; 4, grinding and processing assembly; 41, bracket; 42, grinding disc; 43, rotating motor; 5, lateral movement control part; 6, positioning assembly; 61, positioning seat; 62, fitting groove; 63, air hole; 64, communication cavity; 65, curved arm; 66, partition frame; 67, first spring; 68, curved cavity; 7, transverse movement assembly; 71, sliding seat; 72, slider; 73, internal cavity; 74, sealing sleeve; 8, distributed air suction assembly; 81, vacuum pump; 82, reversing valve; 83, main pipe; 84, middle frame; 85, side pipe; 9, reversing assembly; 91, electric push rod; 92, distribution sleeve; 93, sealing frame; 94, first through port; 95, second curved port; 10, dust removal assembly; 101, processing sleeve; 102, suction pipe. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1 to 10 shown, the embodiment of the present invention provides a sheet positioning device for laser cutting, including a bottom frame 1, a top frame 2 and a laser cutting part 3. A lateral movement control part 5 is fixedly arranged inside the bottom frame 1. A transverse movement assembly 7 is slidably mounted on the top of the lateral movement control part 5. Positioning assemblies 6 are arranged on both sides above the transverse movement assembly 7. One end of the positioning assembly 6 is movably sleeved with the transverse movement assembly 7. A grinding and processing assembly 4 is fixedly arranged on the top of the bottom frame 1. A distributed air suction assembly 8 is fixedly arranged on the top of the transverse movement assembly 7. The distributed air suction assembly 8 has two suction ends. One suction end sucks the air inside the transverse movement assembly 7, and the other suction end sucks the gas in the positioning assembly 6.

[0033] The positioning assembly 6 includes a positioning seat 61, a fitting groove 62, an air hole 63, a communication cavity 64, a curved arm 65, a partition frame 66, a first spring 67 and a curved cavity 68. The positioning assembly 6 simultaneously adsorbs and clamps the sheet placed on the top.

[0034] Embodiment 1: When in use, place the plate to be cut on the top of the positioning component 6, and then start the distributed air suction component 8, so that the vacuum pump 81 starts, and sucks the air inside the inner cavity 73 of the transverse movement component 7 through the reversing valve 82 and the main pipe 83. As the air pressure inside the inner cavity 73 decreases, the curved arms 65 sleeved on both sides of the inner cavity 73 move closer together. While compressing the first spring 67, it drives the positioning seats 61 on both sides of the top to move closer, so that the plate located on the fitting groove 62 on the top of the positioning seat 61 is gradually clamped and fixed from both sides, completing the preliminary side clamping and positioning. Then start the reversing valve 82 to change the air suction direction of the vacuum pump 81, so that the gas in the curved cavity 68 of the curved arm 65 is sucked through the middle frame 84 and the side pipe 85, and the air in the communication cavity 64 is absorbed upward through the curved cavity 68. As the top of the air hole 63 is covered and sealed by the plate, the air pressure in the communication cavity 64 decreases, and a pressure difference is formed on the upper and lower surfaces of the plate, and the plate is adsorbed and fixed on the top of the positioning seat 61. Start the lateral movement control part 5, the lead screw rotates, and drives the transverse movement component 7 to move, driving the positioning component 6 and the positioned plate to move to the position to be cut. Start the laser cutting part 3, the laser head moves down to the top of the plate and moves horizontally to complete the middle cutting of the plate. After cutting, move the laser cutting part 3 up and reset it; then make the reversing valve 82 act, while continuing to suck the air inside the curved cavity 68, bypass the air inside the inner cavity 73. As the air pressure inside the inner cavity 73 is restored, the first spring 67 elastically resets, and the two curved arms 65 move back to their original positions, thereby driving the positioning seats 61 on both sides of the top to move laterally back to their original positions. At the same time, each group of positioning seats 61 drives the adsorbed and cut half plates to move, and the two half plates move away from each other and open the gap between them. Start the lateral movement control part 5 again, continue to push the transverse movement component 7 to move, and at the same time keep the grinding disc 42 in the grinding and processing component 4 rotating. As the two half plates are adsorbed and fixed and move towards the grinding disc 42, the two half plates move along both sides of the surface of the grinding disc 42, and the rotating grinding disc 42 grinds the cut section, completing the grinding synchronously.

[0035] First, by utilizing the cooperative action of the positioning component 6, the transverse movement component 7, and the distributed air suction component 8, after placing the sheet material, the distributed air suction component 8 controls the two-side positioning components 6 to approach each other, realizing the clamping and fixing of the side of the sheet material. After the side clamping, in cooperation with the air suction effect after reversing, the gas in the suction positioning seat 61 is guided and sucked, so that the sheet material after side clamping is adsorbed and fixed on the top of the positioning seat 61. After being cut by the laser cutting part 3, the two cut sheet material plates are still stably adsorbed on the tops of the two-side positioning seats 61, avoiding the loss of stable positioning after cutting. The cut sheet material still remains fixed on the top of the positioning seat 61 without deviation. At the same time, the double positioning effect effectively avoids vibration during cutting, the overall cutting stability is high, and the absolute stability of each group of sheet material plates can be maintained after cutting, with good use effects.

[0036] In addition, by utilizing the above double fixation effect and cooperating with the grinding and processing component 4 configured in the middle, after the sheet material is cut, on the one hand, the negative pressure adsorption effect is used to maintain the stability of the two half sheets, and on the other hand, the two-side positioning components 6 are separated from each other and reset, so as to open the two-side sheet material plates away from each other, expand the distance between the two half sheets, and move through the grinding and processing component 4 under the transverse movement action. In cooperation with the rotating grinding disc 42, the cutting sections of the two half sheets are quickly ground. The actual grinding and processing is simple and convenient, without special positioning processing, and continuous processing is realized by using the previous positioning effect, with good use effects.

[0037] Embodiment 2: During the moving grinding process, the commutation component 9 on the side of the crank arm 65 is started. With the action of the electric push rod 91, the distribution sleeve 92 is pushed to move transversely, so that the bottom of the second curved port 95 in the distribution sleeve 92 is communicated with the curved cavity 68. At the same time, the distribution sleeve 92 cuts off the curved cavity 68, and the upper part of the curved cavity 68 and the communication cavity 64 maintain sealed pressure. The vacuum pump 81 sucks the air in the dust removal component 10 through the side pipe 85, the lower part of the curved cavity 68, and the second curved port 95, so that the dust removal component 10 sucks air downward towards the section being ground through the suction pipe 102, inhales the grinding dust and filters it in the processing sleeve 101. After the adsorption is completed, the distribution sleeve 92 is reset, the second curved port 95 is disconnected from the curved cavity 68, and the first through port 94 running through downward is communicated with the curved cavity 68, so that the partition of the curved cavity 68 disappears. While the commutation valve 82 is opened, the vacuum pump 81 is closed, the internal air pressure is restored, the adsorption and fixation of the sheet material are released, and the two sheets after cutting and grinding can be removed.

[0038] First, by reusing the suction effect of the distributed suction component 8, in cooperation with the functions of the commutation component 9 and the dust removal component 10, when grinding is carried out after cutting and during lateral movement, while maintaining the stable negative pressure adsorption and fixation inside the positioning seat 61 by the commutation component 9, the direction of vacuum suction is switched to guide the suction from the dust removal component 10 towards the grinding area for inhalation treatment, synchronously sucking in the dust during the grinding process, and completing the filtration treatment in cooperation with the filtration part in the treatment sleeve 101. Without additional dust removal power, during the rapid grinding treatment after stable cutting, dust removal treatment is also synchronously achieved, and the use effect is remarkable.

[0039] Among them, the top frame 2 is fixed to the top of the bottom frame 1, and the laser cutting part 3 is arranged at the bottom of the top frame 2.

[0040] By utilizing the top frame 2 and the laser cutting part 3, in cooperation with its own lifting and lateral movement, laser cutting treatment is carried out along the top of the stationary plate.

[0041] Among them, the grinding treatment component 4 includes a bracket 41, a grinding disc 42, and a rotating motor 43. The bracket 41 is fixed to the top of the bottom frame 1, the grinding disc 42 is rotatably installed in the bracket 41, the rotating motor 43 is fixed to the side of the bracket 41 and drives the grinding disc 42 to rotate, and the bottom side of the grinding disc 42 is located on the movement path of the positioning component 6.

[0042] By utilizing the rotation of the grinding disc 42 in the grinding treatment component 4, in cooperation with the two half plates that have been switched and opened and moved, rapid grinding treatment of the cutting section is achieved, improving the quality after cutting.

[0043] Among them, the lateral movement control part 5 includes a servo motor and a lead screw. The servo motor drives the lead screw to rotate. The lateral movement control part 5 also includes limit baffles located on both sides of the lead screw.

[0044] By utilizing the lateral movement control part 5 to control the lateral movement of the lateral movement component 7, the active movement of grinding is achieved.

[0045] Among them, the lateral movement component 7 includes a sliding seat 71, a slider 72, an internal cavity 73, and a sealing sleeve 74. The internal cavity 73 is opened inside the sliding seat 71. The slider 72 is fixedly connected to the bottom of the sliding seat 71. The slider 72 is slidably sleeved between two groups of limit baffles. The slider 72 is threadedly sleeved with the lead screw. The sealing sleeve 74 is fixedly installed at both ends of the sliding seat 71.

[0046] The lateral movement component 7 on the one hand supports the two-sided positioning component 6 and supports the distributed suction component 8, and cooperates with the two-sided positioning component 6 to move away from and close to each other.

[0047] One end of the curved arm 65 is fixed to the bottom of the positioning seat 61, and the other end is movably sleeved in the inner cavity 73 of the sliding seat 71. The partition frame 66 is fixedly sleeved in the inner cavity 73. One end of the first spring 67 is fixedly connected to the partition frame 66, and the other end is fixedly connected to the curved arm 65. The matching groove 62 is opened at the top of the positioning seat 61, the air hole 63 is opened at the top of the positioning seat 61, the communication cavity 64 is opened inside the positioning seat 61, the curved cavity 68 is opened inside the curved arm 65, and both ends of the communication cavity 64 are communicated with the curved cavity 68 and the air hole 63 respectively.

[0048] The positioning component 6 realizes initial side clamping by moving closer, and completes adsorption fixation by adsorption, thus completing the composite positioning and fixation process. The elasticity of the first spring 67 facilitates elastic reset when the air pressure inside the inner cavity 73 recovers. The partition frame 66 provides ventilation while supporting the first spring 67, and the curved arm 65 supports the positioning seat 61 and moves to control the position.

[0049] Among them, the distributed air suction component 8 includes a vacuum pump 81, a reversing valve 82, a main pipe 83, an intermediate frame 84 and side pipes 85. The vacuum pump 81 is fixed on the top of the sliding seat 71. The reversing valve 82 has two air suction ends, one air suction end is communicated with the main pipe 83, and the other air suction end is communicated with the intermediate frame 84. The side pipes 85 are symmetrically distributed on both sides of the intermediate frame 84. One end of the side pipe 85 is communicated with the intermediate frame 84, and the other end is fixed on the curved arm 65 and communicated with the curved cavity 68. The main pipe 83 is fixed on the top of the sliding seat 71 and communicated with the inner cavity 73.

[0050] The distributed air suction component 8 realizes switching of different air suction directions through the action of the inner valve core of the reversing valve 82. When it is communicated with the main pipe 83, it realizes the movement and approach of the two positioning components 6 under the negative pressure effect. When it is communicated with the side pipes 85, it realizes the negative pressure effect in the positioning seat 61 to achieve negative pressure adsorption fixation.

[0051] Among them, a commutation component 9 is fixedly arranged on the side surface of the curved arm 65. One end of the commutation component 9 is movably sleeved in the curved arm 65 and fixedly connected with a dust removal component 10. The commutation component 9 is communicated with the dust removal component 10. The dust removal component 10 is located below the positioning seat 61. The commutation component 9 includes an electric push rod 91, a distribution sleeve 92, a sealing frame 93, a first through port 94 and a second curved port 95. The electric push rod 91 is fixed on the outer side surface of the curved arm 65 through a mounting frame. The movable end of the electric push rod 91 is fixedly connected with the distribution sleeve 92. The distribution sleeve 92 is movably sleeved inside the curved arm 65. The sealing frame 93 is fixed on the other side of the curved arm 65. The first through port 94 is opened at the top of the distribution sleeve 92 and penetrates through the bottom of the distribution sleeve 92. The second curved port 95 is opened inside the distribution sleeve 92. One end of the second curved port 95 is opened at the bottom of the distribution sleeve 92 and the other end is located at the end of the distribution sleeve 92. The second curved port 95 is communicated with the dust removal component 10. The dust removal component 10 includes a processing sleeve 101 and a suction pipe 102. The processing sleeve 101 is fixed at the end of the distribution sleeve 92 and communicated with the second curved port 95. A filtering part is arranged inside the distribution sleeve 92. The suction pipe 102 is fixedly connected to the end of the processing sleeve 101 and communicated with the processing sleeve 101.

[0052] By further switching the suction direction in the positioning component 6 through the commutation component 9, when the negative pressure inside the positioning seat 61 is kept stable, the suction direction can be further changed. Cooperating with the dust removal component 10, the dust generated by grinding is adsorbed and processed along the cutting section to complete the dust removal operation. The movement control of the distribution sleeve 92 realizes the communication between the first through port 94 and the second curved port 95 and the curved cavity 68 respectively. When the first through port 94 is communicated, the normal communication of the curved cavity 68 is maintained. When the second curved port 95 is communicated with the curved cavity 68, the curved cavity 68 is partitioned and the suction direction is changed.

[0053] Working principle and usage process of the present invention: During use, place the plate to be cut on the top of the positioning component 6, and then start the distributed air suction component 8, so that the vacuum pump 81 starts, and sucks the air inside the inner cavity 73 of the transverse movement component 7 through the reversing valve 82 and the main pipe 83, making the air pressure inside the inner cavity 73 decrease. As the air pressure in the inner cavity 73 decreases, the curved arms 65 sleeved on both sides of the inner cavity 73 move closer together. While compressing the first spring 67, the positioning seats 61 on both sides of the top are driven to move closer, so that the plate located on the fitting groove 62 on the top of the positioning seat 61 is gradually clamped and fixed from both sides, completing the preliminary side clamping and positioning. Subsequently, start the reversing valve 82 to change the air suction direction of the vacuum pump 81, so that the gas in the curved cavity 68 of the curved arm 65 is sucked through the middle frame 84 and the side pipe 85, and the air in the communication cavity 64 is absorbed upward through the curved cavity 68. As the top of the air hole 63 is covered and sealed by the plate, the air pressure in the communication cavity 64 decreases, and a pressure difference is formed between the upper and lower surfaces of the plate, and the plate is adsorbed and fixed on the top of the positioning seat 61. Start the lateral movement control part 5, the lead screw rotates, and drives the transverse movement component 7 to move, driving the positioning component 6 and the positioned plate to move to the position to be cut. Start the laser cutting part 3, the laser head moves down to the top of the plate and moves horizontally, completing the middle cutting of the plate. After cutting, move the laser cutting part 3 up and reset it; Subsequently, make the reversing valve 82 act, while continuing to suck the air inside the curved cavity 68, bypass the air inside the inner cavity 73. As the air pressure inside the inner cavity 73 is restored, the first spring 67 elastically resets, and the two curved arms 65 move back to their original positions, thereby driving the positioning seats 61 on both sides of the top to move laterally back to their original positions. At the same time, each group of positioning seats 61 drives the adsorbed and cut half plates to move respectively, and the two half plates move away from each other and open the gap between them. Start the lateral movement control part 5 again, continue to push the transverse movement component 7 to move, and at the same time keep the grinding disc 42 in the grinding and processing component 4 rotating. As the two half plates are adsorbed and fixed and move towards the grinding disc 42, the two half plates move along both sides of the surface of the grinding disc 42, and the rotating grinding disc 42 grinds the cut section, completing the grinding synchronously;During the mobile grinding process, the commutation component 9 on the side of the starting crank arm 65 is activated. With the movement of the electric push rod 91, the distribution sleeve 92 is pushed to move horizontally, so that the bottom of the second curved port 95 in the distribution sleeve 92 communicates with the curved cavity 68. At the same time, the distribution sleeve 92 cuts off the curved cavity 68. The upper part of the curved cavity 68 and the communication cavity 64 maintain sealed pressure. The vacuum pump 81 sucks the air in the dust removal component 10 through the side pipe 85, the lower part of the curved cavity 68, and the second curved port 95. Thus, the dust removal component 10 sucks air downward towards the cross-section grinding through the suction pipe 102, sucks in the grinding dust and filters it in the treatment sleeve 101. After the adsorption is completed, the distribution sleeve 92 is reset. The second curved port 95 is disconnected from the curved cavity 68, and the first through port 94 running through downward communicates with the curved cavity 68, so that the partition of the curved cavity 68 disappears. While the reversing valve 82 is opened, the vacuum pump 81 is closed, and the internal air pressure is restored, releasing the adsorption and fixation of the plate, and the two plates after cutting and grinding can be removed.

[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate positioning device for laser cutting, comprising a bottom frame (1), a top frame (2) and a laser cutting part (3), characterized in that: A lateral movement control unit (5) is fixedly provided inside the bottom frame (1), a lateral movement assembly (7) is slidably installed on the top of the lateral movement control unit (5), positioning assemblies (6) are provided on both sides above the lateral movement assembly (7), one end of the positioning assembly (6) is movably connected to the lateral movement assembly (7), a polishing processing assembly (4) is fixedly provided on the top of the bottom frame (1), a distributed air suction assembly (8) is fixedly provided on the top of the lateral movement assembly (7), and the distributed air suction assembly (8) has two suction ends, one suction end sucks the air inside the lateral movement assembly (7), and the other suction end sucks the gas in the positioning assembly (6). The positioning assembly (6) comprises a positioning seat (61), an adapting groove (62), an air hole (63), a connecting cavity (64), a curved arm (65), a partition frame (66), a spring 1 (67) and a curved cavity (68). The positioning assembly (6) simultaneously absorbs and clamps a plate placed on the top.

2. A plate positioning device for laser cutting according to claim 1, characterized in that: The top frame (2) fixes the top of the bottom frame (1), and the laser cutting part (3) is arranged at the bottom of the top frame (2).

3. A plate positioning device for laser cutting according to claim 2, characterized in that: The grinding processing component (4) comprises a bracket (41), a grinding disc (42), and a rotating motor (43); the bracket (41) is fixed on the top of the bottom frame (1); the grinding disc (42) is rotatably installed in the bracket (41); the rotating motor (43) is fixed on the side of the bracket (41) and drives the grinding disc (42) to rotate; the bottom side of the grinding disc (42) is located on the moving path of the positioning component (6).

4. A plate positioning device for laser cutting according to claim 3, characterized in that: The lateral movement control part (5) comprises a servo motor and a lead screw, the servo motor drives the lead screw to rotate, and the lateral movement control part (5) also comprises a limit baffle, the limit baffle is located on both sides of the lead screw.

5. A plate positioning device for laser cutting according to claim 4, characterized in that: The transverse movement assembly (7) comprises a sliding seat (71), a slider (72), an internal cavity (73) and a sealing sleeve (74); the internal cavity (73) is opened inside the sliding seat (71); the slider (72) is fixedly connected to the bottom of the sliding seat (71); the slider (72) is slidably sleeved between two sets of limit baffles; the slider (72) is threadably sleeved with the lead screw; and the sealing sleeve (74) is fixedly installed at both ends of the sliding seat (71).

6. A plate positioning device for laser cutting according to claim 5, characterized in that: One end of the curved arm (65) is fixed to the bottom of the positioning seat (61), and the other end is movably sleeved in the internal cavity (73) of the sliding seat (71); the partition frame (66) is fixedly sleeved in the internal cavity (73); one end of the spring (67) is fixedly connected to the partition frame (66), and the other end is fixedly connected to the curved arm (65); the adapting groove (62) is opened at the top of the positioning seat (61); the air hole (63) is opened at the top of the positioning seat (61); the connecting cavity (64) is opened inside the positioning seat (61); the curved cavity (68) is opened inside the curved arm (65); and the two ends of the connecting cavity (64) are respectively connected to the curved cavity (68) and the air hole (63).

7. A plate positioning device for laser cutting according to claim 6, characterized in that: The distributed suction component (8) comprises a vacuum pump (81), a reversing valve (82), a main pipe (83), an intermediate frame (84) and a side pipe (85). The vacuum pump (81) is fixed on the top of the sliding seat (71). The reversing valve (82) has two suction ends, one of which is connected to the main pipe (83) and the other is connected to the intermediate frame (84). The side pipe (85) is symmetrically distributed on both sides of the intermediate frame (84). One end of the side pipe (85) is connected to the intermediate frame (84), and the other end is fixed on the crank arm (65) and connected to the crank cavity (68). The main pipe (83) is fixed on the top of the sliding seat (71) and connected to the internal cavity (73).

8. A plate positioning device for laser cutting according to claim 7, characterized in that: A reversing assembly (9) is fixedly provided on the side of the crank arm (65); one end of the reversing assembly (9) is movably sleeved in the crank arm (65) and is fixedly connected to a dust removal assembly (10); the reversing assembly (9) is communicated with the dust removal assembly (10); and the dust removal assembly (10) is located below the positioning seat (61).

9. A plate positioning device for laser cutting according to claim 8, characterized in that: The reversing assembly (9) comprises an electric push rod (91), a distribution sleeve (92), a sealing frame (93), a first through port (94) and a second curved port (95). The electric push rod (91) is fixed to the outer surface of the crank arm (65) through a mounting frame. The movable end of the electric push rod (91) is fixedly connected to the distribution sleeve (92). The distribution sleeve (92) is movably sleeved inside the crank arm (65). The sealing frame (93) is fixed to the other side of the crank arm (65). The first through port (94) is opened at the top of the distribution sleeve (92) and passes through the bottom of the distribution sleeve (92). The second curved port (95) is opened inside the distribution sleeve (92). One end of the second curved port (95) is opened at the bottom of the distribution sleeve (92) and the other end is located at the end of the distribution sleeve (92). The second curved port (95) is connected to the dust removal assembly (10).

10. A plate positioning device for laser cutting according to claim 9, characterized in that: The dust removal assembly (10) comprises a processing sleeve (101) and a suction pipe (102); the processing sleeve (101) is fixed to the end of the distribution sleeve (92) and is in communication with the second curved port (95); a filter portion is provided inside the distribution sleeve (92); and the suction pipe (102) is fixedly connected to the end of the processing sleeve (101) and is in communication with the processing sleeve (101).

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