Laser cutting jig and laser cutting equipment

Abstract

The invention provides a laser cutting jig and laser cutting equipment, and belongs to the technical field of laser cutting. The laser cutting jig comprises a cutting table and supporting legs, a sliding rail is fixedly installed at the top of the cutting table, a moving table is installed on the surface of the sliding rail, a limiting mechanism is arranged at the top of the cutting table, and the limiting mechanism comprises a rotating disc, a sliding groove, a rolling wheel and a first hydraulic rod. By arranging the limiting mechanism, a user places a workpiece to be cut on four limiting seats and enables the workpiece to be located above rolling wheels, sliding friction between the workpiece and the limiting seats is converted into rolling friction through the arrangement of the rolling wheels, friction force is reduced, and after the limiting seats reach preset positions, the workpiece is cut by starting a first hydraulic rod; and the limiting plates are driven to move, the limiting plates are finely adjusted, so that the workpiece is clamped by the four limiting plates, and compared with the prior art, the clamping effect is more stable.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, and in particular to a laser cutting jig and laser cutting equipment. Background Art

[0002] Laser cutting is a processing technology that uses a high-energy-density laser beam to cut materials. The basic principle of laser cutting is that the laser beam generated by the laser is focused by the optical system to highly concentrate the energy on a very small spot. This high-energy spot acts on the surface of the material, causing the material to melt, vaporize or burn rapidly. At the same time, the melted or vaporized material is blown away from the cutting area through auxiliary gas to form an incision. Laser cutting equipment is usually equipped with a slide rail and a moving table, so that the laser head mounted on the moving table can be moved arbitrarily for cutting.

[0003] When existing equipment is in use, the workpiece to be cut is usually clamped by a jig to improve the stability of the workpiece during laser cutting. However, conventional jigs do not have the function of fine-tuning. Due to manual errors in the specifications of the workpiece, the stability of the jig when clamping is insufficient. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a laser cutting jig and a laser cutting device that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a laser cutting jig, comprising a cutting table and legs, wherein a slide rail is fixedly installed on the top of the cutting table, a movable table is installed on the surface of the slide rail, and a limiting mechanism is arranged on the top of the cutting table, wherein the limiting mechanism comprises:

[0007] A turntable, the turntable is rotatably mounted inside the cutting table, the turntable is provided with an arc-shaped groove running through from top to bottom, and a sliding shaft is provided inside the sliding sleeve of the arc-shaped groove;

[0008] A slide groove, the slide groove is opened on the top of the cutting table, the internal sliding sleeve of the slide groove is provided with a slider, the bottom of the slider is fixedly connected to the top of the sliding shaft, the top of the slider is fixedly installed with a limit seat, and the cross-section of the limit seat is set to be L-shaped;

[0009] A roller, the roller is rotatably mounted inside the limit seat, a plurality of the rollers are provided, the height of the top of the roller is higher than the height of the bottom wall of the limit seat, and a limit plate is slidably provided on the bottom wall of the limit seat;

[0010] A first hydraulic rod is fixedly mounted on a side of a limiting seat away from the limiting plate, and an output end of the first hydraulic rod is fixedly connected to the limiting plate.

[0011] In a preferred embodiment, a driving groove is provided on the surface of the turntable, a gear ring is rotatably installed inside the cutting table, the gear ring is sleeved on the outside of the turntable, a driving block is fixedly installed on the inner wall of the gear ring, the driving block is slidably sleeved inside the driving groove, a gear is rotatably installed inside the cutting table, and the gear and the gear ring are meshingly connected.

[0012] In a preferred embodiment, a lifting groove is provided on the top of the cutting table, a lifting plate is provided on the internal sliding sleeve of the lifting groove, a through groove which passes through the lifting plate from top to bottom is provided on the lifting plate, a return spring and a first damper are fixedly installed on the bottom of the inner wall of the lifting groove, the return spring and the first damper are sleeved inside the through groove, a receiving plate is fixedly installed on the other end of the return spring and the first damper, and the height of the top of the receiving plate is flush with the height of the top of the bottom wall of the limit seat.

[0013] In a preferred solution, a second telescopic rod is fixedly installed on the bottom of the inner wall of the lifting groove, the other end of the second telescopic rod is fixedly connected to the lifting plate, a lifting rod is fixedly installed on the bottom of the lifting plate, a screw rod is rotatably installed inside the cutting table, the top of the screw rod passes through the interior of the lifting groove, the screw rod is sleeved inside the lifting rod, and the screw rod and the lifting rod are threadedly connected.

[0014] In a preferred embodiment, a connecting shaft is fixedly installed at the bottom of the gear, a first rotating wheel is fixedly sleeved on the surface of the screw rod and the connecting shaft, a first transmission belt is provided between the screw rod and the connecting shaft via the first rotating wheel sleeve, a motor is fixedly installed at the bottom of the cutting table, and the output end of the motor is fixedly connected to the bottom of the connecting shaft.

[0015] In a preferred embodiment, a knocking mechanism is provided inside the limit seat, and the knocking mechanism includes a first rotating plate, which is rotatably installed inside the limit seat, a follower rod is fixedly installed on one side of the first rotating plate, and a first transmission shaft is fixedly installed on the other side of the first rotating plate, a rotating rod is fixedly sleeved between the multiple rollers, and a second rotating wheel is fixedly sleeved on the surfaces of the rotating rod and the follower rod, a second transmission belt is sleeved between the rotating rod and the follower rod through the second rotating wheel, a first fixed block is fixedly installed inside the limit seat, a first transmission rod is slidably sleeved inside the first fixed block, a first transmission frame is fixedly installed on the bottom of the first transmission rod, a first transmission groove which runs through the front and back is opened on the first transmission frame, and the first transmission shaft is slidably sleeved inside the first transmission groove.

[0016] In a preferred solution, a limiting groove is provided on the top of the limiting seat, a moving block is slidably installed inside the limiting groove, a moving cavity is provided on the top of the moving block, a wedge block is slidably sleeved inside the moving cavity, the height of the top of the wedge block is higher than the height of the top of the roller, an extrusion spring is fixedly installed on the bottom of the inner wall of the moving cavity, the other end of the extrusion spring is fixedly connected to the bottom of the wedge block, a moving spring is fixedly installed on the inner wall of the limiting groove, the other end of the moving spring is fixedly connected to the moving block, a limiting strip is fixedly installed inside the limiting groove, and the moving block sliding sleeve is arranged on the surface of the limiting strip.

[0017] In a preferred solution, the internal sliding sleeve of the moving block is provided with a knocking rod, a knocking head is fixedly installed on the top of the knocking rod, a connecting plate is fixedly installed on the bottom of the knocking rod, the shape of the connecting plate is set to be Z-shaped, the connecting plate is located above the first transmission rod, a return spring is fixedly installed on the top of the connecting plate, and the other end of the return spring is fixedly connected to the bottom of the moving block.

[0018] In a preferred embodiment, a flip mechanism is provided on the movable platform, and the flip mechanism includes a connecting rod, which is rotatably mounted on the movable platform, and a first laser cutting head and a second laser cutting head are respectively mounted on the bottom and top of the connecting rod, a second rotating plate is fixedly mounted on the left side of the connecting rod, a second transmission shaft is fixedly mounted on the left side of the second rotating plate, a second fixed block is fixedly mounted on the left side of the movable platform, a second transmission rod is slidingly sleeved inside the second fixed block, a second transmission frame is fixedly mounted on the rear side of the second transmission rod, a second transmission groove which runs through the left and right sides is opened on the second transmission frame, and the second transmission shaft is slidingly sleeved inside the second transmission groove, support plates are fixedly mounted on the left and right sides of the movable platform, a third fixed block is fixedly mounted on the left side of the movable platform, a connecting spring is fixedly mounted between the second transmission rod and the third fixed block, a second hydraulic rod is fixedly mounted on the top of one of the support plates, and a first descending plate is fixedly mounted on the output end of the second hydraulic rod, and the first A piston cylinder is fixedly installed at the bottom of the descending plate, and a second descending plate is fixedly installed at the bottom of the piston cylinder, a piston bolt is slidably installed inside the piston cylinder, a piston rod is fixedly installed at the bottom of the piston bolt, and the bottom of the piston rod passes through the bottom of the second descending plate, a piston plate is fixedly installed at the bottom of the piston rod, and a descending spring is fixedly installed between the piston plate and the second descending plate, a driving cylinder is fixedly installed on the right side of the mobile platform, a driving plate is slidably installed inside the driving cylinder, a driving rod is fixedly installed at the bottom of the driving plate, and the bottom of the driving rod passes through the bottom of the driving cylinder, a third rotating plate is fixedly installed on the right side of the connecting rod, a first connecting rod is fixedly installed on the right side of the third rotating plate, a second connecting rod is arranged on the right side of the first connecting rod, one end of the second connecting rod is rotatably connected to the first connecting rod, and the other end of the second connecting rod is rotatably connected to the driving rod, a hose is installed between the driving cylinder and the piston cylinder, and the inner cavity of the driving cylinder and the inner cavity of the piston cylinder are connected through the hose.

[0019] A laser cutting device comprises the laser cutting jig as described above.

[0020] The present invention provides a laser cutting jig and a laser cutting device, the beneficial effects of which include:

[0021] 1. By setting a limit mechanism, the user places the workpiece to be cut on four limit seats and places the workpiece above the roller. The setting of the roller converts the sliding friction between the workpiece and the limit seat into rolling friction, reducing the friction force until the limit seat reaches the preset position. By starting the first hydraulic rod, the limit plate is driven to move, and the limit plate is fine-tuned, so that the workpiece is clamped by the four limit plates. Compared with the existing technology, the clamping effect is more stable.

[0022] 2. By setting up a knocking mechanism, the knocking rod drives the knocking head to knock on the bottom of the workpiece, so that the completed workpiece falls from the frame of the initial workpiece to the receiving plate through vibration. After the user takes away the workpiece, the wedge returns to its original position through the rebound force of the extrusion spring for next use, thereby automatically separating the completed workpiece and the remaining waste from the processing, which is convenient for the user to unload the material.

[0023] 3. By setting up a flipping mechanism, the first laser cutting head and the second laser cutting head can be automatically switched according to the thickness of the plate workpiece, which is beneficial to improving the laser cutting efficiency and the quality rate. Compared with the existing technology, it avoids the problem of slow cutting and poor cutting effect when a low-power laser cutting head cuts thick plates, and also avoids the problem of burrs when a high-power laser cutting head cuts thin plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention;

[0026] Figure 2 A partial cross-sectional view of a cutting table is provided for an embodiment of the present invention;

[0027] Figure 3 An exploded view of a slideway and a slider is provided for an embodiment of the present invention;

[0028] Figure 4 A partial cross-sectional view of a cutting table from above is provided for an embodiment of the present invention;

[0029] Figure 5 An exploded view of a rotating disk and a gear ring is provided for an embodiment of the present invention;

[0030] Figure 6 An exploded diagram of a screw rod and a lifting rod is provided for an embodiment of the present invention;

[0031] Figure 7 A partial cross-sectional view of a limit seat is provided for an embodiment of the present invention;

[0032] Figure 8 A structural schematic diagram of a knocking mechanism is provided for an embodiment of the present invention;

[0033] Fig. 9A schematic diagram of the structure of a flipping mechanism is provided for an embodiment of the present invention;

[0034] Fig.10 A partial cross-sectional view of a piston cylinder and a drive cylinder is provided for an embodiment of the present invention.

[0035] In the figure: 1, cutting table; 2, outrigger; 3, slide rail; 4, moving table; 501, turntable; 502, arc groove; 503, slide shaft; 504, slide groove; 505, slider; 506, limit seat; 507, roller; 508, limit plate; 509, first hydraulic rod; 510, driving groove; 511, gear ring; 512, driving block; 513, gear; 514, lifting groove; 515, lifting plate; 516, through groove; 517, return spring; 518, first damper; 519, receiving plate; 520, second telescopic rod; 521, lifting rod; 523, screw rod; 524, connecting shaft; 525, first transmission belt; 526, motor; 601, first rotating plate; 602, follower rod; 603, first transmission shaft; 604, rotating rod; 605, second transmission belt; 606, first fixed block; 607, first transmission rod; 608, first transmission frame; 609, first transmission slot; 610, limit slot; 611, moving block; 612, moving cavity; 613, wedge block; 614, extrusion spring; 615, moving spring; 616, limit strip; 617, knocking rod; 618, knocking head; 619, connecting plate; 620, reset spring; 701, connecting rod; 702, first laser cutting head; 703, second laser cutting head; 704, second rotating plate; 705, second transmission shaft; 706, second fixed block; 707, second transmission rod; 708, second transmission frame; 709, The second transmission groove; 710, the support plate; 711, the third fixed block; 712, the connecting spring; 713, the second hydraulic rod; 714, the first descending plate; 715, the piston cylinder; 716, the second descending plate; 717, the piston bolt; 718, the piston rod; 719, the piston plate; 720, the descending spring; 721, the driving cylinder; 722, the driving plate; 723, the driving rod; 724, the third rotating plate; 725, the first connecting rod; 726, the second connecting rod; 727, the hose. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figure 1-10The present invention provides a technical solution: a laser cutting fixture, including a cutting table 1 and a leg 2, a slide rail 3 is fixedly installed on the top of the cutting table 1, a moving table 4 is installed on the surface of the slide rail 3, a limiting mechanism is arranged on the top of the cutting table 1, the limiting mechanism includes a turntable 501, a slide groove 504, a roller 507 and a first hydraulic rod 509, the turntable 501 is rotatably installed inside the cutting table 1, an arc groove 502 is opened on the turntable 501, a sliding sleeve inside the arc groove 502 is provided with a sliding shaft 503, the slide groove 504 The top of the cutting table 1 is opened, and the inner sliding sleeve of the slide groove 504 is provided with a slider 505. The bottom of the slider 505 is fixedly connected to the top of the slide shaft 503. The top of the slider 505 is fixedly installed with a limit seat 506. The shape of the cross section of the limit seat 506 is set to be L-shaped. The roller 507 is rotatably installed inside the limit seat 506. The roller 507 is provided with a plurality of rollers. The height of the top of the roller 507 is higher than the height of the bottom wall of the limit seat 506. The limit plate 508 is slidably provided on the bottom wall of the limit seat 506. The first hydraulic rod 509 The limiting seat 506 is fixedly installed on the side away from the limiting plate 508, and the output end of the first hydraulic rod 509 is fixedly connected to the limiting plate 508. The cutting jig, that is, the movable seat is installed on the cutting table 1. By setting the limiting mechanism, the user places the workpiece to be cut on the four limiting seats 506 and makes the workpiece above the roller 507. When the turntable 501 rotates, the arc groove 502 squeezes the sliding shaft 503, and through the cooperation of the sliding groove 504, the sliding shaft 503 drives the slider 505 and the limiting seat 506 to move to the left. Move in the direction close to the central axis of the cutting table 1. At this time, the workpiece slides relative to the limit seat 506, driving the roller 507 to rotate. The setting of the roller 507 converts the sliding friction between the workpiece and the limit seat 506 into rolling friction, reducing the friction force. After the limit seat 506 reaches the preset position, the first hydraulic rod 509 is started to drive the limit plate 508 to move, and the limit plate 508 is fine-tuned, so that the workpiece is clamped by the four limit plates 508. Compared with the prior art, the clamping effect is more stable;

[0038] Reference Figure 1-10A driving groove 510 is provided on the surface of the turntable 501, and a ring gear 511 is rotatably installed inside the cutting table 1. The ring gear 511 is sleeved on the outer side of the turntable 501, and a driving block 512 is fixedly installed on the inner wall of the ring gear 511. The driving block 512 is slidably sleeved inside the driving groove 510. A gear 513 is rotatably installed inside the cutting table 1, and the gear 513 and the ring gear 511 are meshed and connected. By setting the driving groove 510 and the driving block 512, when the gear 513 rotates, the ring gear 511 rotates through the meshing of the gear 513 and the ring gear 511. In the initial state, the driving block 512 is located at the very end of the inner wall of the driving groove 510. When the ring gear 511 rotates, it drives the driving block 512 to slide inside the driving groove 510. When the driving block 512 reaches the other end of the inner wall of the driving groove 510, it squeezes the inner wall of the driving groove 510, thereby driving the turntable 501 to rotate, providing driving force for the rotation of the turntable 501;

[0039] Reference Figure 1-10A lifting groove 514 is provided on the top of the cutting table 1, and a lifting plate 515 is provided inside the lifting groove 514 for sliding sleeve. A through groove 516 which passes through from top to bottom is provided on the lifting plate 515. A return spring 517 and a first damper 518 are fixedly installed at the bottom of the inner wall of the lifting groove 514. The return spring 517 and the first damper 518 are sleeved inside the through groove 516. A receiving plate 519 is fixedly installed at the other end of the return spring 517 and the first damper 518. The height of the top of the receiving plate 519 is flush with the height of the top of the bottom wall of the limiting seat 506. A second extension plate 519 is fixedly installed at the bottom of the inner wall of the lifting groove 514. The telescopic rod 520, the other end of the second telescopic rod 520 is fixedly connected to the lifting plate 515, the lifting plate 515 is fixedly installed with a lifting rod 521 at the bottom, the cutting table 1 is rotatably installed with a screw rod 523, the top of the screw rod 523 penetrates into the lifting groove 514, the screw rod 523 is sleeved inside the lifting rod 521, the screw rod 523 and the lifting rod 521 are threadedly connected, the bottom of the gear 513 is fixedly installed with a connecting shaft 524, the surfaces of the screw rod 523 and the connecting shaft 524 are fixedly sleeved with a first rotating wheel, and a first transmission belt 525 is sleeved between the screw rod 523 and the connecting shaft 524 through the first rotating wheel, and the cutting table 1 The bottom of the lifting plate 519 is fixedly installed with a motor 526, and the output end of the motor 526 is fixedly connected to the bottom of the connecting shaft 524. By setting the lifting slot 514 and the lifting plate 515, the user starts the motor 526 to drive the connecting shaft 524 to rotate, thereby driving the gear 513 to rotate. At the same time, through the cooperation of the first transmission belt 525, the screw rod 523 rotates at the same time. Through the threaded connection between the screw rod 523 and the lifting rod 521, and the cooperation of the second telescopic rod 520, the lifting plate 515 moves upward until the top of the lifting plate 515 contacts the bottom of the receiving plate 519. At this time, the driving block 512 is in the driving slot 5 The inner wall of the workpiece 10 rotates to the end, driving the turntable 501 to rotate, so that the lifting plate 515 and the receiving plate 519 support the bottom of the workpiece. When the laser cutting of the workpiece is completed, the motor 526 is started in the reverse direction, so that the lifting plate 515 returns to the initial position first, and then the driving block 512 returns to the initial position of the driving groove 510 and drives the turntable 501 to rotate, so that the limit seat 506 releases the clamping of the workpiece, and through the return spring 517 and the first damper 518, the workpiece after processing falls onto the receiving plate 519, which plays a bearing and shock-absorbing effect on it, thereby avoiding damage to the workpiece and the receiving plate 519;

[0040] Reference Figure 1-10The limiting seat 506 is provided with a knocking mechanism inside, and the knocking mechanism includes a first rotating plate 601, which is rotatably mounted inside the limiting seat 506, a follower rod 602 is fixedly mounted on one side of the first rotating plate 601, and a first transmission shaft 603 is fixedly mounted on the other side of the first rotating plate 601, a rotating rod 604 is fixedly sleeved between the plurality of rollers 507, a second rotating wheel is fixedly sleeved on the surfaces of the rotating rod 604 and the follower rod 602, a second transmission belt 605 is sleeved between the rotating rod 604 and the follower rod 602 through the second rotating wheel, a first fixed block 606 is fixedly mounted inside the limiting seat 506, and the internal sliding of the first fixed block 606 A first transmission rod 607 is sleeved, and a first transmission frame 608 is fixedly installed at the bottom of the first transmission rod 607. A first transmission groove 609 that runs through the front and back is opened on the first transmission frame 608. The first transmission shaft 603 is slidably sleeved inside the first transmission groove 609. By setting a knocking mechanism, when the roller 507 rotates, the rotating rod 604 is driven to rotate, and the first rotating plate 601 and the first transmission shaft 603 are driven to rotate through the cooperation of the second transmission belt 605, and the inner wall of the first transmission groove 609 is squeezed. Through the cooperation of the first fixed block 606, the first transmission frame 608 drives the first transmission rod 607 to reciprocate in the vertical direction;

[0041] Reference Figure 1-10A limiting groove 610 is provided at the top of the limiting seat 506, a moving block 611 is slidably installed inside the limiting groove 610, a moving cavity 612 is provided at the top of the moving block 611, a wedge 613 is provided inside the moving cavity 612 for sliding, the height of the top of the wedge 613 is higher than the height of the top of the roller 507, an extrusion spring 614 is fixedly installed at the bottom of the inner wall of the moving cavity 612, the other end of the extrusion spring 614 is fixedly connected to the bottom of the wedge 613, a moving spring 615 is fixedly installed on the inner wall of the limiting groove 610, the other end of the moving spring 615 is fixedly connected to the moving block 611, a limiting strip 616 is fixedly installed inside the limiting groove 610, and the sliding sleeve of the moving block 611 A knocking rod 617 is arranged on the surface of the limit bar 616, and an internal sliding sleeve of the moving block 611 is provided with a knocking rod 617, a knocking head 618 is fixedly installed on the top of the knocking rod 617, and a connecting plate 619 is fixedly installed on the bottom of the knocking rod 617. The shape of the connecting plate 619 is set to be Z-shaped, and the connecting plate 619 is located above the first transmission rod 607. A return spring 620 is fixedly installed on the top of the connecting plate 619, and the other end of the return spring 620 is fixedly connected to the bottom of the moving block 611. By setting the moving block 611, when the workpiece slides relative to the limit seat 506 above the roller 507, the vertical side of the moving block 611 is squeezed, so that the workpiece drives the moving block 611 to approach The limit plate 508 moves in the direction of the moving block 611, so that the connecting plate 619 is staggered with the first transmission rod 607 in the vertical direction, so that the first transmission rod 607 cannot drive the knocking rod 617 and the knocking head 618 to move upward to knock the workpiece through the connecting plate 619, thereby avoiding the workpiece from being affected by the knocking when the limit plate 508 clamps the workpiece. When the limit plate 508 clamps the workpiece, the arc-shaped side of the wedge block 613 contacts the limit plate 508, and the wedge block 613 is squeezed into the inside of the moving cavity 612 by the extrusion of the limit plate 508. At this time, the moving block 611 returns to its original position through the rebound force of the moving spring 615. And it is located below the workpiece. When the laser cutting of the workpiece is completed, on the contrary, the limit plate 508 releases the workpiece and also causes the roller 507 to slide. At this time, since the moving block 611 has returned to its original position, the first transmission rod 607 moves back and forth and moves upward to squeeze the connecting plate 619, so that the knocking rod 617 drives the knocking head 618 to knock the bottom of the workpiece, so that the processed workpiece falls from the frame of the initial workpiece to the receiving plate 519 through vibration. After the user takes away the workpiece, the wedge block 613 returns to its original position through the rebound force of the extrusion spring 614 so that it can be used next time, so that the processed workpiece and the remaining waste materials are automatically separated, which is convenient for the user to unload materials.

[0042] Reference Figure 1-10A flip mechanism is provided on the mobile platform 4, and the flip mechanism includes a connecting rod 701, which is rotatably mounted on the mobile platform 4, and a first laser cutting head 702 and a second laser cutting head 703 are respectively mounted on the bottom and top of the connecting rod 701, a second rotating plate 704 is fixedly mounted on the left side of the connecting rod 701, a second transmission shaft 705 is fixedly mounted on the left side of the second rotating plate 704, a second fixed block 706 is fixedly mounted on the left side of the mobile platform 4, a second transmission rod 707 is slidably sleeved inside the second fixed block 706, a second transmission frame 708 is fixedly mounted on the rear side of the second transmission rod 707, a second transmission groove 709 which runs through the left and right sides is opened on the second transmission frame 708, and the second transmission shaft 705 is slidably sleeved inside the second transmission groove 709 A support plate 710 is fixedly installed on both sides of the mobile platform 4, a third fixed block 711 is fixedly installed on the left side of the mobile platform 4, a connecting spring 712 is fixedly installed between the second transmission rod 707 and the third fixed block 711, a second hydraulic rod 713 is fixedly installed on the top of one of the support plates 710, a first descending plate 714 is fixedly installed on the output end of the second hydraulic rod 713, a piston cylinder 715 is fixedly installed on the bottom of the first descending plate 714, a second descending plate 716 is fixedly installed on the bottom of the piston cylinder 715, a piston bolt 717 is slidably installed inside the piston cylinder 715, a piston rod 718 is fixedly installed on the bottom of the piston bolt 717, the bottom of the piston rod 718 penetrates to the bottom of the second descending plate 716, and the piston rod 718 is fixedly installed on the bottom of the piston cylinder 715. A piston plate 719 is fixedly installed at the bottom, a descending spring 720 is fixedly installed between the piston plate 719 and the second descending plate 716, a driving cylinder 721 is fixedly installed on the right side of the moving platform 4, a driving plate 722 is slidably installed inside the driving cylinder 721, a driving rod 723 is fixedly installed at the bottom of the driving plate 722, and the bottom of the driving rod 723 passes through the bottom of the driving cylinder 721, a third rotating plate 724 is fixedly installed on the right side of the connecting rod 701, a first connecting rod 725 is fixedly installed on the right side of the third rotating plate 724, a second connecting rod 726 is arranged on the right side of the first connecting rod 725, one end of the second connecting rod 726 is rotatably connected to the first connecting rod 725, and the other end of the second connecting rod 726 is rotatably connected to the driving rod 723. A hose 727 is installed between 715, and the inner cavity of the driving cylinder 721 and the inner cavity of the piston cylinder 715 are connected through the hose 727. By setting the flip mechanism, the power of the first laser cutting head 702 and the second laser cutting head 703 are different. The first laser cutting head 702 is suitable for thinner plate processing parts, and the second laser cutting head 703 is suitable for thicker plate processing parts. Hydraulic oil is stored in the piston cylinder 715, the hose 727 and the driving cylinder 721. Before laser cutting the plate workpiece, the second hydraulic rod 713 is started to drive the first descending plate 714 to move downward, and the piston cylinder 715 moves downward together. The user pre-sets the output stroke of the second hydraulic rod 713. When the piston plate 719 contacts the top of the workpiece,The piston plate 719 drives the piston rod 718 and the piston bolt 717 to move upward relative to the piston cylinder 715, so that the hydraulic oil is squeezed, and the driving plate 722 drives the driving rod 723 to move downward through the cooperation of the hose 727, and the third rotating plate 724 is rotated through the cooperation of the first connecting rod 725 and the second connecting rod 726. When the thickness of the plate workpiece is thick and needs to be cut by the second laser cutting head 703, the piston bolt 717 moves upward a large distance, and the driving rod 723 descends a large distance, so that the third rotating plate 724 rotates at a large angle. When the rotation angle of the third rotating plate 724 reaches After passing ninety degrees, the third rotating plate 724 drives the connecting rod 701 to flip over. At this time, the second hydraulic rod 713 is started in the reverse direction to move the piston cylinder 715 upward, so that the piston plate 719 and the driving plate 722 return to their original positions. In this process, the position of the second connecting rod 726 on the third rotating plate 724 reaches the other side of the initial position, so that the third rotating plate 724 drives the connecting rod 701 to complete a 180-degree flip, so that the second laser cutting head 703 with greater power and more suitable for thicker plates is located below the connecting rod 701 to perform laser cutting on the plate workpiece. The setting of the second rotating plate 704 makes it possible to cut the plate workpiece by laser when the thickness of the plate workpiece is one When the third rotating plate 724 reaches a critical value, that is, when the rotation angle of the third rotating plate 724 just reaches ninety degrees through the extrusion of the workpiece plate, the second rotating plate 704 continues to rotate through the resilience of the connecting spring 712, thereby the connecting rod 701 and the third rotating plate 724 continue to rotate, so that the first laser cutting head 702 and the second laser cutting head 703 complete the flipping, and the third rotating plate 724 is prevented from returning to its original position in the opposite rotation direction, and the elastic force of the connecting spring 712 is much smaller than the descending spring 720, so that when the resilience of the descending spring 720 is needed to complete the flipping, there is no resistance due to the resilience of the connecting spring 712 On the contrary, when the thickness of the plate workpiece is thin, the rotation angle of the third rotating plate 724 cannot reach 90 degrees, and the first laser cutting head 702 is still located below the connecting rod 701, which is convenient for subsequent laser cutting of the thin plate, so that the first laser cutting head 702 and the second laser cutting head 703 can be automatically switched according to the thickness of the plate workpiece, which is conducive to improving the laser cutting efficiency and the quality rate. Compared with the prior art, it avoids the problem of slow cutting and poor cutting effect when the low-power laser cutting head cuts thick plates, and also avoids the problem of burrs when the high-power laser cutting head cuts thin plates.

[0043] A laser cutting device includes a laser cutting jig.

[0044] Specifically, the working process or working principle of the laser cutting jig and the laser cutting equipment is as follows: when in use, the user places the workpiece to be cut on the four limit seats 506 and places the workpiece above the roller 507. The user starts the motor 526 to drive the connecting shaft 524 to rotate, thereby driving the gear 513 to rotate. At the same time, through the cooperation of the first transmission belt 525, the screw rod 523 rotates at the same time. Through the threaded connection between the screw rod 523 and the lifting rod 521, and the cooperation of the second telescopic rod 520, the lifting plate 515 moves upward until the top of the lifting plate 515 contacts the bottom of the receiving plate 519, so that the lifting plate 515 and the receiving plate 519 support the bottom of the workpiece. When the gear 513 rotates, The gear 513 and the gear ring 511 are meshed, so that the gear ring 511 rotates. In the initial state, the driving block 512 is located at the end of the inner wall of the driving groove 510. When the gear ring 511 rotates, it drives the driving block 512 to slide inside the driving groove 510. When the driving block 512 reaches the end on the other side of the inner wall of the driving groove 510, it squeezes the inner wall of the driving groove 510, thereby driving the turntable 501 to rotate. When the turntable 501 rotates, the arc groove 502 squeezes the sliding shaft 503. Through the cooperation of the sliding groove 504, the sliding shaft 503 drives the slider 505 and the limit seat 506 to move in the direction close to the central axis of the cutting table 1. At this time, the workpiece slides relative to the limit seat 506, driving the roller 507 to rotate. The setting of the roller 507 The sliding friction between the workpiece and the limit seat 506 is converted into rolling friction, reducing the friction force. After the limit seat 506 reaches the preset position, the first hydraulic rod 509 is started to drive the limit plate 508 to move, and the limit plate 508 is fine-tuned, so that the workpiece is clamped by the four limit plates 508. When the roller 507 rotates, the rotating rod 604 is driven to rotate. Through the cooperation of the second transmission belt 605, the first rotating plate 601 and the first transmission shaft 603 are driven to rotate, and the inner wall of the first transmission groove 609 is squeezed. Through the cooperation of the first fixed block 606, the first transmission frame 608 drives the first transmission rod 607 to reciprocate in the vertical direction. When the workpiece slides relative to the limit seat 506 above the roller 507 When the workpiece moves, the vertical side of the moving block 611 is squeezed, so that the workpiece drives the moving block 611 to move toward the direction close to the limit plate 508, so that the moving block 611 drives the connecting plate 619 to move, so that the connecting plate 619 is staggered with the first transmission rod 607 in the vertical direction, so that the first transmission rod 607 cannot drive the knocking rod 617 and the knocking head 618 to move upward to knock the workpiece through the connecting plate 619, thereby avoiding the workpiece from being affected by the knocking when the workpiece is limited. When the limit plate 508 clamps the workpiece, the arc-shaped side of the wedge block 613 contacts the limit plate 508, and the wedge block 613 is squeezed into the inside of the moving cavity 612 by the squeeze of the limit plate 508. At this time, the rebound force of the moving spring 615 isThe moving block 611 returns to its original position and is located below the workpiece. Before laser cutting the plate workpiece, the second hydraulic rod 713 is started to drive the first descending plate 714 to move downward, and the piston cylinder 715 moves downward together. The user pre-sets the output stroke of the second hydraulic rod 713. When the piston plate 719 contacts the top of the workpiece, the piston plate 719 drives the piston rod 718 and the piston bolt 717 to move upward relative to the piston cylinder 715, so that the hydraulic oil is squeezed. Through the cooperation of the hose 727, the driving plate 722 drives the driving rod 723 to move downward. Through the cooperation of the first connecting rod 725 and the second connecting rod 726, the third rotating plate 724 rotates. When the thickness of the plate workpiece is thick, the second laser cutting is required. When the head 703 is cutting, the piston bolt 717 moves upward a large distance, and the driving rod 723 drops a large distance, so that the third rotating plate 724 rotates at a large angle. When the rotation angle of the third rotating plate 724 reaches more than ninety degrees, the third rotating plate 724 drives the connecting rod 701 to flip. At this time, the second hydraulic rod 713 is started in the reverse direction to move the piston cylinder 715 upward, so that the piston plate 719 and the driving plate 722 return to their original positions. In this process, the position of the second connecting rod 726 on the third rotating plate 724 reaches the other side of the initial position, so that the third rotating plate 724 drives the connecting rod 701 to complete a 180-degree flip, so that the second laser cutting head 703 with greater power and more suitable for thicker plates is located below the connecting rod 701, The workpiece is laser cut, and the second rotating plate 704 is set so that when the thickness of the plate workpiece is a critical value, that is, when the rotation angle of the third rotating plate 724 just reaches ninety degrees through the extrusion of the workpiece plate, the second rotating plate 704 continues to rotate through the rebound force of the connecting spring 712, thereby continuing to rotate through the connecting rod 701 and the third rotating plate 724, so that the first laser cutting head 702 and the second laser cutting head 703 are completed to turn over, and the third rotating plate 724 is prevented from returning to its original position in the opposite rotation direction, and the elastic force of the connecting spring 712 is much smaller than the descending spring 720, so that when the rebound force of the descending spring 720 is required to complete the flipping, it will not be hindered by the rebound force of the connecting spring 712. On the contrary, the thickness of the plate workpiece When the sheet is thin, the rotation angle of the third rotating plate 724 cannot reach ninety degrees, and the first laser cutting head 702 is still located below the connecting rod 701, which is convenient for subsequent laser cutting of the thin sheet. When the laser cutting of the workpiece is completed, the motor 526 is started in reverse, so that the lifting plate 515 returns to the initial position first, and then the driving block 512 returns to the initial position of the driving groove 510 and drives the turntable 501 to rotate, so that the limit seat 506 releases the clamping of the workpiece. On the contrary, the limit plate 508 releases the workpiece and also causes the roller 507 to slide. At this time, since the moving block 611 has returned to its original position, when the first transmission rod 607 reciprocates, the upward movement will squeeze the connecting plate 619, so that the knocking rod 617 drives the knocking head 618 to knock on the bottom of the workpiece.Thus, the finished workpiece is made to fall from the frame of the initial workpiece to the receiving plate 519 through vibration. The return spring 517 and the first damper 518 make the finished workpiece fall onto the receiving plate 519 to receive and reduce shock. After the user takes away the workpiece, the wedge block 613 returns to its original position through the rebound force of the compression spring 614 for the next use.

Claims

1. A laser cutting jig, comprising a cutting table (1) and legs (2), wherein a slide rail (3) is fixedly mounted on the top of the cutting table (1), and a moving table (4) is mounted on the surface of the slide rail (3), characterized in that: A limiting mechanism is provided on the top of the cutting table (1), and the limiting mechanism comprises: A turntable (501), the turntable (501) being rotatably mounted inside the cutting table (1), the turntable (501) being provided with an arc-shaped groove (502) extending vertically therethrough, and a sliding shaft (503) being provided inside the sliding sleeve of the arc-shaped groove (502); A slide groove (504), wherein the slide groove (504) is provided at the top of the cutting table (1), a sliding block (505) is provided inside the slide groove (504), the bottom of the sliding block (505) is fixedly connected to the top of the sliding shaft (503), a limit seat (506) is fixedly installed on the top of the sliding block (505), and the cross-section of the limit seat (506) is set to be L-shaped; A roller (507), the roller (507) being rotatably mounted inside the limiting seat (506), a plurality of rollers (507) being provided, the height of the top of the roller (507) being higher than the height of the bottom wall of the limiting seat (506), and a limiting plate (508) being slidably provided on the bottom wall of the limiting seat (506); A first hydraulic rod (509), wherein the first hydraulic rod (509) is fixedly mounted on a side of the limiting seat (506) away from the limiting plate (508), and an output end of the first hydraulic rod (509) is fixedly connected to the limiting plate (508).

2. A laser cutting jig according to claim 1, characterized in that: A driving groove (510) is provided on the surface of the rotating disk (501); a gear ring (511) is rotatably mounted inside the cutting table (1); the gear ring (511) is sleeved on the outside of the rotating disk (501); a driving block (512) is fixedly mounted on the inner wall of the gear ring (511); the driving block (512) is slidably sleeved inside the driving groove (510); a gear (513) is rotatably mounted inside the cutting table (1); the gear (513) and the gear ring (511) are meshingly connected.

3. A laser cutting jig according to claim 2, characterized in that: A lifting groove (514) is provided on the top of the cutting table (1), and a lifting plate (515) is slidably sleeved inside the lifting groove (514), and a through groove (516) which passes through the lifting plate (515) from top to bottom is provided on the lifting plate (515). A return spring (517) and a first damper (518) are fixedly installed at the bottom of the inner wall of the lifting groove (514), and the return spring (517) and the first damper (518) are sleeved inside the through groove (516). A receiving plate (519) is fixedly installed at the other end of the return spring (517) and the first damper (518), and the height of the top of the receiving plate (519) is flush with the height of the top of the bottom wall of the limiting seat (506).

4. A laser cutting jig according to claim 3, characterized in that: A second telescopic rod (520) is fixedly mounted on the bottom of the inner wall of the lifting groove (514); the other end of the second telescopic rod (520) is fixedly connected to the lifting plate (515); a lifting rod (521) is fixedly mounted on the bottom of the lifting plate (515); a screw rod (523) is rotatably mounted inside the cutting table (1); the top of the screw rod (523) passes through the inside of the lifting groove (514); the screw rod (523) is sleeved inside the lifting rod (521); and the screw rod (523) and the lifting rod (521) are threadedly connected.

5. A laser cutting jig according to claim 4, characterized in that: A connecting shaft (524) is fixedly mounted at the bottom of the gear (513); a first rotating wheel is fixedly sleeved on the surfaces of the screw rod (523) and the connecting shaft (524); a first transmission belt (525) is sleeved between the screw rod (523) and the connecting shaft (524) via the first rotating wheel; a motor (526) is fixedly mounted at the bottom of the cutting table (1); and an output end of the motor (526) is fixedly connected to the bottom of the connecting shaft (524).

6. A laser cutting jig according to claim 5, characterized in that: A knocking mechanism is arranged inside the limiting seat (506), and the knocking mechanism comprises a first rotating plate (601), the first rotating plate (601) is rotatably mounted inside the limiting seat (506), a follower rod (602) is fixedly mounted on one side of the first rotating plate (601), a first transmission shaft (603) is fixedly mounted on the other side of the first rotating plate (601), a rotating rod (604) is fixedly sleeved between the plurality of rollers (507), a second rotating wheel is fixedly sleeved on the surfaces of the rotating rod (604) and the follower rod (602), and the rotating rod (604) is fixedly sleeved on the surfaces of the rotating rod (604) and the follower rod (602), and the rotating rod (604) is fixedly sleeved on the surfaces of the rotating rod (604) and the follower rod (602). A second transmission belt (605) is provided between the first and second transmission rods (604) and the follower rod (602) via a second rotating wheel sleeve, a first fixed block (606) is fixedly installed inside the limit seat (506), a first transmission rod (607) is slidably sleeved inside the first fixed block (606), a first transmission frame (608) is fixedly installed at the bottom of the first transmission rod (607), a first transmission groove (609) which passes through the first transmission frame (608) from front to back is opened, and the first transmission shaft (603) is slidably sleeved inside the first transmission groove (609).

7. The laser cutting jig according to claim 6, characterized in that: A limiting groove (610) is provided at the top of the limiting seat (506), a moving block (611) is slidably installed inside the limiting groove (610), a moving cavity (612) is provided at the top of the moving block (611), a wedge block (613) is slidably sleeved inside the moving cavity (612), the height of the top of the wedge block (613) is higher than the height of the top of the roller (507), an extrusion spring (614) is fixedly installed at the bottom of the inner wall of the moving cavity (612), the other end of the extrusion spring (614) is fixedly connected to the bottom of the wedge block (613), a moving spring (615) is fixedly installed on the inner wall of the limiting groove (610), the other end of the moving spring (615) is fixedly connected to the moving block (611), a limiting strip (616) is fixedly installed inside the limiting groove (610), and the moving block (611) is slidably sleeved on the surface of the limiting strip (616).

8. The laser cutting jig according to claim 7, characterized in that: The internal sliding sleeve of the moving block (611) is provided with a knocking rod (617), a knocking head (618) is fixedly installed on the top of the knocking rod (617), a connecting plate (619) is fixedly installed on the bottom of the knocking rod (617), the shape of the connecting plate (619) is set to be Z-shaped, the connecting plate (619) is located above the first transmission rod (607), a return spring (620) is fixedly installed on the top of the connecting plate (619), and the other end of the return spring (620) is fixedly connected to the bottom of the moving block (611).

9. The laser cutting jig according to claim 8, characterized in that: The movable platform (4) is provided with a flipping mechanism, the flipping mechanism comprising a connecting rod (701), the connecting rod (701) is rotatably mounted on the movable platform (4), a first laser cutting head (702) and a second laser cutting head (703) are respectively mounted on the bottom and top of the connecting rod (701), a second rotating plate (704) is fixedly mounted on the left side of the connecting rod (701), a second transmission shaft (705) is fixedly mounted on the left side of the second rotating plate (704), a second fixed block (706) is fixedly mounted on the left side of the movable platform (4), a second transmission rod (707) is provided in a sliding sleeve inside the second fixed block (706), and a second transmission rod (707) is fixedly mounted on the rear side of the second transmission rod (707). The transmission frame (708) is provided with a second transmission groove (709) which is through-connected to the left and right sides of the second transmission frame (708); the second transmission shaft (705) is slidably sleeved inside the second transmission groove (709); support plates (710) are fixedly installed on both the left and right sides of the mobile platform (4); a third fixed block (711) is fixedly installed on the left side of the mobile platform (4); a connecting spring (712) is fixedly installed between the second transmission rod (707) and the third fixed block (711); a second hydraulic rod (713) is fixedly installed on the top of one of the support plates (710); a first descending plate (714) is fixedly installed on the output end of the second hydraulic rod (713); and the first descending plate (714) ) is fixedly mounted on the bottom of the movable platform (4), a second descending plate (716) is fixedly mounted on the bottom of the piston cylinder (715), a piston bolt (717) is slidably mounted inside the piston cylinder (715), a piston rod (718) is fixedly mounted on the bottom of the piston bolt (717), the bottom of the piston rod (718) penetrates through the bottom of the second descending plate (716), a piston plate (719) is fixedly mounted on the bottom of the piston rod (718), a descending spring (720) is fixedly mounted between the piston plate (719) and the second descending plate (716), a driving cylinder (721) is fixedly mounted on the right side of the movable platform (4), a driving cylinder (721) is slidably mounted inside A movable plate (722), a driving rod (723) is fixedly installed at the bottom of the driving plate (722), the bottom of the driving rod (723) penetrates to the bottom of the driving cylinder (721), a third rotating plate (724) is fixedly installed on the right side of the connecting rod (701), a first connecting rod (725) is fixedly installed on the right side of the third rotating plate (724), a second connecting rod (726) is arranged on the right side of the first connecting rod (725), one end of the second connecting rod (726) is rotatably connected to the first connecting rod (725), and the other end of the second connecting rod (726) is rotatably connected to the driving rod (723), a hose (727) is installed between the driving cylinder (721) and the piston cylinder (715),The inner cavity of the driving cylinder (721) and the inner cavity of the piston cylinder (715) are connected via a hose (727).

10. A laser cutting device, comprising the laser cutting jig according to any one of claims 1 to 9.

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