A laser cutting jig and laser cutting apparatus

Abstract

The application provides a kind of laser cutting jig and laser cutting equipment, belong to laser cutting technical field.The laser cutting jig, including cutting table and supporting leg, the top of cutting table is fixedly installed with slide rail, the surface of slide rail is installed with moving table, the top of cutting table is provided with limiting mechanism, the limiting mechanism includes carousel, sliding slot, gyro wheel and first hydraulic rod.The limiting mechanism is set, the workpiece to be cut is placed on four limit seats by user, and the workpiece is located above gyro wheel, the setting of gyro wheel makes the sliding friction between workpiece and limit seat change into rolling friction, reduces friction, until limit seat reaches preset position, by starting first hydraulic rod, driving limit plate moves, fine tuning is carried out to limit plate, so that workpiece is clamped by four limit plates, compared with prior art, clamping effect is more stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting, in particular to a laser cutting jig and a laser cutting device. BACKGROUND

[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 a laser beam generated by a laser is focused by an optical system to highly concentrate energy on a very small spot. The high-energy spot acts on the surface of the material, causing the material to rapidly melt, vaporize, or burn. At the same time, an auxiliary gas is used to blow the melted or vaporized material away from the cutting area, thereby forming a cut. 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] In use, the existing device usually clamps the workpiece to be cut by a jig to improve the stability of the workpiece during laser cutting. However, the conventional jig does not have a fine adjustment function. Since there is a manual error in the specifications of the workpiece, the stability of the jig during clamping is not good enough. SUMMARY

[0004] In order to make up for the above shortcomings, the present application 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 application is implemented as follows:

[0006] The present application provides a laser cutting jig, which comprises a cutting table and a supporting leg. The top of the cutting table is fixedly installed with a slide rail, and the surface of the slide rail is installed with a moving table. The top of the cutting table is provided with a limiting mechanism, which comprises,

[0007] A turntable is rotationally installed in the interior of the cutting table. An arc-shaped slot is formed in the turntable, and a slide shaft is slidably sleeved in the interior of the arc-shaped slot.

[0008] A sliding groove is formed in the top of the cutting table. A sliding block is slidably sleeved in the interior of the sliding groove. The bottom of the sliding block is fixedly connected with the top of the slide shaft. A limiting seat is fixedly installed on the top of the sliding block. The shape of the limiting seat in cross section is L-shaped.

[0009] A plurality of rollers are rotationally installed in the interior of the limiting seat. The height of the top of the rollers is higher than the height of the bottom wall of the limiting seat. A limiting plate is slidably arranged on the bottom wall of the limiting seat.

[0010] The first hydraulic rod is fixedly installed on one side of the limiting seat away from the limiting plate, and the output end of the first hydraulic rod is fixedly connected with the limiting plate.

[0011] In a preferred scheme, the surface of the rotating disc is provided with a driving groove, the inside of the cutting table is rotatably installed with a gear ring, the gear ring is sleeved on the outside of the rotating disc, the inner wall of the gear ring is fixedly installed with a driving block, the driving block is slidably sleeved in the inside of the driving groove, the inside of the cutting table is rotatably installed with a gear, and the gear is in meshing connection with the gear ring.

[0012] In a preferred scheme, the top of the cutting table is provided with a lifting groove, the inside of the lifting groove is slidably sleeved with a lifting plate, the lifting plate is provided with a through groove penetrating up and down, the bottom of the inner wall of the lifting groove is fixedly installed with a return spring and a first damper, the return spring and the first damper are sleeved in the inside of the through groove, the other end of the return spring and the first damper is fixedly installed with a receiving plate, and the height of the top of the receiving plate is flush with the height of the top of the bottom wall of the limiting seat.

[0013] In a preferred scheme, the bottom of the inner wall of the lifting groove is fixedly installed with a second telescopic rod, the other end of the second telescopic rod is fixedly connected with the lifting plate, the bottom of the lifting plate is fixedly installed with a lifting rod, the inside of the cutting table is rotatably installed with a lead screw, the top of the lead screw penetrates into the inside of the lifting groove, the lead screw is sleeved in the inside of the lifting rod, and the lead screw and the lifting rod are in threaded connection.

[0014] In a preferred scheme, the bottom of the gear is fixedly installed with a connecting shaft, the surfaces of the lead screw and the connecting shaft are both fixedly sleeved with a first rotating wheel, the lead screw and the connecting shaft are sleeved with a first transmission belt through the first rotating wheel, the bottom of the connecting shaft is fixedly connected with the output end of a motor fixedly installed at the bottom of the cutting table.

[0015] In a preferred scheme, the inside of the limiting seat is provided with a knocking mechanism, the knocking mechanism comprises a first rotating plate, the first rotating plate is rotatably installed in the inside of the limiting seat, one side of the first rotating plate is fixedly installed with a follower rod, the other side of the first rotating plate is fixedly installed with a first transmission shaft, a rotating rod is fixedly sleeved between a plurality of the rollers, the surfaces of the rotating rod and the follower rod are both fixedly sleeved with a second rotating wheel, the rotating rod and the follower rod are sleeved with a second transmission belt through the second rotating wheel, the inside of the limiting seat is fixedly installed with a first fixed block, the inside of the first fixed block is slidably sleeved with a first transmission rod, the bottom of the first transmission rod is fixedly installed with a first transmission frame, the first transmission frame is provided with a first transmission groove penetrating front and back, and the first transmission shaft is slidably sleeved in the inside of the first transmission groove.

[0016] In a preferred scheme, the top of the limiting seat is provided with a limiting slot, a moving block is slidably installed inside the limiting slot, a moving cavity is formed in the top of the moving block, a wedge block is slidably sleeved in 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 at the bottom of the inner wall of the moving cavity, the other end of the extrusion spring is fixedly connected with the bottom of the wedge block, a moving spring is fixedly installed on the inner wall of the limiting slot, the other end of the moving spring is fixedly connected with the moving block, a limiting strip is fixedly installed inside the limiting slot, and the moving block is slidably sleeved on the surface of the limiting strip.

[0017] In a preferred scheme, a knocking rod is slidably sleeved in the moving block, a knocking head is fixedly installed at the top of the knocking rod, a connecting plate is fixedly installed at the bottom of the knocking rod, the shape of the connecting plate is Z-shaped, the connecting plate is located above the first transmission rod, a reset spring is fixedly installed at the top of the connecting plate, and the other end of the reset spring is fixedly connected with the bottom of the moving block.

[0018] In a preferred scheme, the mobile station is provided with a turnover mechanism, the turnover mechanism comprises a connecting rod, the connecting rod is rotatably installed on the mobile station, the bottom and the top of the connecting rod are respectively provided with a first laser cutting head and a second laser cutting head, the left side of the connecting rod is fixedly provided with a second rotating plate, the left side of the second rotating plate is fixedly provided with a second transmission shaft, the left side of the mobile station is fixedly provided with a second fixed block, the inside of the second fixed block is slidably sleeved with a second transmission rod, the rear side of the second transmission rod is fixedly provided with a second transmission frame, the second transmission frame is provided with a left-right through second transmission groove, the second transmission shaft is slidably sleeved in the second transmission groove, the left and right sides of the mobile station are both fixedly provided with a supporting plate, the left side of the mobile station is fixedly provided with a third fixed block, the second transmission rod and the third fixed block are fixedly provided with a connecting spring, the top of one of the supporting plates is fixedly provided with a second hydraulic rod, the output end of the second hydraulic rod is fixedly provided with a first descending plate, the bottom of the first descending plate is fixedly provided with a piston cylinder, the bottom of the piston cylinder is fixedly provided with a second descending plate, the inside of the piston cylinder is slidably provided with a piston plug, the bottom of the piston plug is fixedly provided with a piston rod, the bottom of the piston rod penetrates to the bottom of the second descending plate, the bottom of the piston rod is fixedly provided with a piston plate, the piston plate and the second descending plate are fixedly provided with a descending spring, the right side of the mobile station is fixedly provided with a driving cylinder, the inside of the driving cylinder is slidably provided with a driving plate, the bottom of the driving plate is fixedly provided with a driving rod, the bottom of the driving rod penetrates to the bottom of the driving cylinder, the right side of the connecting rod is fixedly provided with a third rotating plate, the right side of the third rotating plate is fixedly provided with a first connecting rod, the right side of the first connecting rod is provided with a second connecting rod, one end of the second connecting rod is rotatably connected with the first connecting rod, the other end of the second connecting rod is rotatably connected with the driving rod, the driving cylinder and the piston cylinder are provided with a hose, the inner cavity of the driving cylinder and the inner cavity of the piston cylinder are communicated through the hose.

[0019] A laser cutting device comprising the laser cutting jig.

[0020] The laser cutting jig and the laser cutting device have the following advantages:

[0021] 1. By arranging the limiting mechanism, the user places the workpiece to be cut on the four limiting seats, and the workpiece is above the rollers. The arrangement of the rollers changes the sliding friction between the workpiece and the limiting seat into rolling friction, thereby reducing the friction. After the limiting seat reaches the preset position, the first hydraulic rod is started to drive the limiting plate to move, and the limiting plate is finely adjusted, so that the workpiece is clamped by the four limiting plates. Compared with the prior art, the clamping effect is more stable.

[0022] 2. By setting the knocking mechanism, the knocking rod drives the knocking head to knock the bottom of the workpiece, so that the finished workpiece falls from the frame of the initial workpiece to the receiving plate through vibration, and after the user takes away the workpiece, the wedge returns to the original position through the rebound force of the compression spring, so as to separate the finished workpiece and the remaining waste material automatically next time, which is beneficial to the user to separate the workpiece.

[0023] 3. By setting the turnover 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 improve the laser cutting efficiency and the quality rate, compared with the prior art, the problem of slow cutting and poor cutting effect of the laser cutting head with low power when cutting thick plates is avoided, and the problem of burr when the laser cutting head with large power cuts thin plates is also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

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

[0026] Figure 2 is the partial cross-sectional view of the cutting table provided by the embodiment of the present application;

[0027] Figure 3 is the exploded view of the sliding groove and the sliding block provided by the embodiment of the present application;

[0028] Figure 4 is the partial cross-sectional view of the cutting table provided by the embodiment of the present application;

[0029] Figure 5 is the exploded view of the rotating disc and the gear ring provided by the embodiment of the present application;

[0030] Figure 6 is the exploded view of the lead screw and the lifting rod provided by the embodiment of the present application;

[0031] Figure 7 is the partial cross-sectional view of the limiting seat provided by the embodiment of the present application;

[0032] Figure 8 is the structure schematic diagram of the knocking mechanism provided by the embodiment of the present application;

[0033] Figure 9A structure diagram of a turnover mechanism is provided for the embodiment of the present application.

[0034] Figure 10 A partial sectional view of a piston cylinder and a driving cylinder is provided for the embodiment of the present application.

[0035] In the figure: 1, cutting table; 2, support leg; 3, slide rail; 4, moving table; 501, rotating disc; 502, arc-shaped slot; 503, slide shaft; 504, slide groove; 505, sliding block; 506, limiting seat; 507, roller; 508, limiting plate; 509, first hydraulic rod; 510, driving slot; 511, gear ring; 512, driving block; 513, gear; 514, lifting slot; 515, lifting plate; 516, through slot; 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, limiting slot; 611, moving block; 612, moving cavity; 613, wedge block; 614, extrusion spring; 615, moving spring; 616, limiting strip; 617, knocking rod; 618, knocking head; 619, connecting plate; 620, return 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, second transmission slot; 710, support plate; 711, third fixed block; 712, connecting spring; 713, second hydraulic rod; 714, first lowering plate; 715, piston cylinder; 716, second lowering plate; 717, piston bolt; 718, piston rod; 719, piston plate; 720, lowering spring; 721, driving cylinder; 722, driving plate; 723, driving rod; 724, third rotating plate; 725, first connecting rod; 726, second connecting rod; 727, hose. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0037] REFERENCE Figures 1-10The application provides a technical scheme: a laser cutting jig, comprising a cutting table 1 and a supporting leg 2, a sliding rail 3 is fixedly installed on the top of the cutting table 1, a moving table 4 is installed on the surface of the sliding rail 3, a limiting mechanism is arranged on the top of the cutting table 1, the limiting mechanism comprises a rotating disc 501, a sliding groove 504, a roller 507 and a first hydraulic rod 509, the rotating disc 501 is rotationally installed in the cutting table 1, an arc-shaped groove 502 penetrating from top to bottom is formed in the rotating disc 501, a sliding shaft 503 is sleeved in the arc-shaped groove 502, the sliding groove 504 is formed in the top of the cutting table 1, a sliding block 505 is sleeved in the sliding groove 504, the bottom of the sliding block 505 is fixedly connected with the top of the sliding shaft 503, a limiting seat 506 is fixedly installed on the top of the sliding block 505, the shape of the limiting seat 506 in the transverse section is L-shaped, the roller 507 is rotationally installed in the limiting seat 506, a plurality of rollers 507 are arranged, the height of the top of the roller 507 is higher than the height of the bottom wall of the limiting seat 506, a limiting plate 508 is slidably arranged on the bottom wall of the limiting seat 506, the first hydraulic rod 509 is fixedly installed on the side of the limiting seat 506 away from the limiting plate 508, the output end of the first hydraulic rod 509 is fixedly connected with the limiting plate 508, the cutting jig, that is, the moving seat is installed on the cutting table 1, through the limiting mechanism, the user places the workpiece to be cut on the four limiting seats 506 and makes the workpiece be located above the rollers 507, when the rotating disc 501 rotates, the arc-shaped groove 502 extrudes the sliding shaft 503, through the cooperation of the sliding groove 504, the sliding shaft 503 drives the sliding block 505 and the limiting seat 506 to move towards the center axis of the cutting table 1, at this time, the workpiece slides relative to the limiting seat 506, drives the roller 507 to rotate, the arrangement of the roller 507 changes the sliding friction between the workpiece and the limiting seat 506 into rolling friction, reduces the friction, and after the limiting seat 506 reaches the preset position, the first hydraulic rod 509 is started to drive the limiting plate 508 to move, the limiting plate 508 is finely adjusted, so that the workpiece is clamped by the four limiting plates 508, compared with the prior art, the clamping effect is more stable.

[0038] Reference Figures 1-10The surface of the rotating disc 501 is provided with a driving groove 510, the inside of the cutting table 1 is rotatably provided with a gear ring 511, the gear ring 511 is sleeved outside the rotating disc 501, the inner wall of the gear ring 511 is fixedly provided with a driving block 512, the driving block 512 is slidably sleeved inside the driving groove 510, the inside of the cutting table 1 is rotatably provided with a gear 513, the gear 513 and the gear ring 511 are meshingly connected, by arranging the driving groove 510 and the driving block 512, when the gear 513 rotates, the gear ring 511 is made to rotate through the meshing of the gear 513 and the gear ring 511, the driving block 512 is located at the last end of the inner wall of the driving groove 510 in the initial state, when the gear ring 511 rotates, the driving block 512 is made to slide inside the driving groove 510, when the driving block 512 reaches the other last end of the inner wall of the driving groove 510, the inner wall of the driving groove 510 is extruded, so that the rotating disc 501 is made to rotate, and driving force is provided for the rotation of the rotating disc 501;

[0039] With reference to Figures 1-10The top of the cutting table 1 is provided with a lifting groove 514, a lifting plate 515 is slidably sleeved in the lifting groove 514, a through groove 516 is formed in the lifting plate 515 in an up-down direction, 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 in 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 telescopic rod 520 is fixedly installed at the bottom of the inner wall of the lifting groove 514, the other end of the second telescopic rod 520 is fixedly connected with the lifting plate 515, a lifting rod 521 is fixedly installed at the bottom of the lifting plate 515, a lead screw 523 is rotatably installed in the cutting table 1, the top of the lead screw 523 penetrates into the lifting groove 514, the lead screw 523 is sleeved in the lifting rod 521, the lead screw 523 and the lifting rod 521 are threadedly connected, a connecting shaft 524 is fixedly installed at the bottom of the gear 513, first rotating wheels are fixedly sleeved on the surfaces of the lead screw 523 and the connecting shaft 524, a first transmission belt 525 is sleeved with the first rotating wheels between the lead screw 523 and the connecting shaft 524, a motor 526 is fixedly installed at the bottom of the cutting table 1, the output end of the motor 526 is fixedly connected with the bottom of the connecting shaft 524, by arranging the lifting groove 514 and the lifting plate 515, the user starts the motor 526, drives the connecting shaft 524 to rotate, thereby driving the gear 513 to rotate, at the same time, the lead screw 523 is simultaneously rotated through cooperation of the first transmission belt 525, the lifting plate 515 is moved upward through cooperation between the thread connection between the lead screw 523 and the lifting rod 521 and the second telescopic rod 520, until the top of the lifting plate 515 is in contact with the bottom of the receiving plate 519, at this time, the driving block 512 is rotated to the last end in the inner wall of the driving groove 510 to drive the rotating disc 501 to rotate, thereby enabling the lifting plate 515 and the receiving plate 519 to support the bottom of the workpiece, after the workpiece is laser cut, the motor 526 is started in reverse, so that the lifting plate 515 returns to the initial position first, then the driving block 512 returns to the initial position in the driving groove 510 and drives the rotating disc 501 to rotate, so that the limiting seat 506 loosens the clamping of the workpiece, through the return spring 517 and the first damper 518, the workpiece after processing falls on the receiving plate 519, thereby achieving the effect of receiving and damping, avoiding damage to the workpiece and the receiving plate 519;

[0040] Referring to Figures 1-10The inside of the limiting seat 506 is provided with a knocking mechanism, the knocking mechanism comprises a first rotating plate 601, the first rotating plate 601 is rotatably installed in the inside of the limiting seat 506, one side of the first rotating plate 601 is fixedly installed with a follow-up rod 602, the other side of the first rotating plate 601 is fixedly installed with a first transmission shaft 603, a rotating rod 604 is fixedly sleeved between the plurality of rollers 507, the surfaces of the rotating rod 604 and the follow-up rod 602 are fixedly sleeved with second rotating wheels, the second rotating wheels are sleeved with a second transmission belt 605 between the rotating rod 604 and the follow-up rod 602, a first fixed block 606 is fixedly installed in the inside of the limiting seat 506, a first transmission rod 607 is slidably sleeved in the inside of 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 penetrating through front and back is formed in the first transmission frame 608, the first transmission shaft 603 is slidably sleeved in the inside of the first transmission groove 609, by setting the knocking mechanism, when the roller 507 rotates, the rotating rod 604 is driven to rotate, by cooperation of the second transmission belt 605, the first rotating plate 601 and the first transmission shaft 603 are driven to rotate, the inner wall of the first transmission groove 609 is extruded, by 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] With reference to Figures 1-10The top of the limiting seat 506 is provided with a limiting groove 610, the inside of the limiting groove 610 is slidably provided with a moving block 611, the top of the moving block 611 is provided with a moving cavity 612, the inside of the moving cavity 612 is slidably provided with a wedge block 613, the height of the top of the wedge block 613 is higher than the height of the top of the roller 507, the bottom of the inner wall of the moving cavity 612 is fixedly provided with an extrusion spring 614, the other end of the extrusion spring 614 is fixedly connected with the bottom of the wedge block 613, the inner wall of the limiting groove 610 is fixedly provided with a moving spring 615, the other end of the moving spring 615 is fixedly connected with the moving block 611, the inside of the limiting groove 610 is fixedly provided with a limiting strip 616, the moving block 611 is slidably arranged on the surface of the limiting strip 616, the inside of the moving block 611 is slidably provided with a knocking rod 617, the top of the knocking rod 617 is fixedly provided with a knocking head 618, the bottom of the knocking rod 617 is fixedly provided with a connecting plate 619, the shape of the connecting plate 619 is Z-shaped, the connecting plate 619 is located above the first transmission rod 607, the top of the connecting plate 619 is fixedly provided with a reset spring 620, the other end of the reset spring 620 is fixedly connected with the bottom of the moving block 611, by arranging the moving block 611, when the workpiece is slid relative to the limiting seat 506 above the roller 507, the moving block 611 is extruded on the vertical side, so that the workpiece drives the moving block 611 to move towards the direction of the limiting 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 upwards to knock the workpiece through the connecting plate 619, so as to avoid the influence caused by knocking when the workpiece is limited, when the limiting plate 508 clamps the workpiece, because the arc side of the wedge block 613 is in contact with the limiting plate 508, the wedge block 613 is extruded into the inside of the moving cavity 612 through the extrusion of the limiting plate 508, at this time, the moving block 611 returns to the original position through the rebound force of the moving spring 615 and is located below the workpiece, after the workpiece is laser cut, conversely, the limiting plate 508 releases the workpiece, which also makes the roller 507 slide, at this time, because the moving block 611 has returned to the original position, when the first transmission rod 607 reciprocates, the connecting plate 619 is extruded upwards, so that the knocking rod 617 drives the knocking head 618 to knock the bottom of the workpiece, so as to make the processed workpiece fall from the frame of the original workpiece to the receiving plate 519 through vibration, after the user takes away the workpiece, the wedge block 613 returns to the original position through the rebound force of the extrusion spring 614, so as to be used next time, so that the processed workpiece and the remaining waste are automatically separated, which is beneficial to the user to separate the workpiece;

[0042] With reference to Figures 1-10The mobile station 4 is provided with a turnover mechanism, the turnover mechanism comprises a connecting rod 701, the connecting rod 701 is rotatably installed on the mobile station 4, the bottom and the top of the connecting rod 701 are respectively provided with a first laser cutting head 702 and a second laser cutting head 703, the left side of the connecting rod 701 is fixedly provided with a second rotating plate 704, the left side of the second rotating plate 704 is fixedly provided with a second transmission shaft 705, the left side of the mobile station 4 is fixedly provided with a second fixed block 706, the inside of the second fixed block 706 is slidably provided with a second transmission rod 707, the rear side of the second transmission rod 707 is fixedly provided with a second transmission frame 708, the second transmission frame 708 is provided with a left-right through second transmission groove 709, the second transmission shaft 705 is slidably provided in the second transmission groove 709, the left and right sides of the mobile station 4 are both fixedly provided with a supporting plate 710, the left side of the mobile station 4 is fixedly provided with a third fixed block 711, the second transmission rod 707 and the third fixed block 711 are fixedly provided with a connecting spring 712, the top of one of the supporting plates 710 is fixedly provided with a second hydraulic rod 713, the output end of the second hydraulic rod 713 is fixedly provided with a first descending plate 714, the bottom of the first descending plate 714 is fixedly provided with a piston cylinder 715, the bottom of the piston cylinder 715 is fixedly provided with a second descending plate 716, the inside of the piston cylinder 715 is slidably provided with a piston plug 717, the bottom of the piston plug 717 is fixedly provided with a piston rod 718, the bottom of the piston rod 718 penetrates to the bottom of the second descending plate 716, the bottom of the piston rod 718 is fixedly provided with a piston plate 719, the piston plate 719 and the second descending plate 716 are fixedly provided with a descending spring 720, the right side of the mobile station 4 is fixedly provided with a driving cylinder 721, the inside of the driving cylinder 721 is slidably provided with a driving plate 722, the bottom of the driving plate 722 is fixedly provided with a driving rod 723, the bottom of the driving rod 723 penetrates to the bottom of the driving cylinder 721, the right side of the connecting rod 701 is fixedly provided with a third rotating plate 724, the right side of the third rotating plate 724 is fixedly provided with a first connecting rod 725, the second connecting rod 726 is arranged at the right side of the first connecting rod 725, one end of the second connecting rod 726 is rotatably connected with the first connecting rod 725, the other end of the second connecting rod 726 is rotatably connected with the driving rod 723, the driving cylinder 721 and the piston cylinder 715 are provided with a hose 727, the inner cavity of the driving cylinder 721 and the inner cavity of the piston cylinder 715 are communicated through the hose 727, by arranging the turnover mechanism, the power of the first laser cutting head 702 and the second laser cutting head 703 is different, the first laser cutting head 702 is suitable for thinner plate processing parts, the second laser cutting head 703 is suitable for thicker plate processing parts, the inside of the piston cylinder 715, the hose 727 and the driving cylinder 721 stores hydraulic oil, before laser cutting of the plate workpiece, the second hydraulic rod 713 is started to drive the first descending plate 714 to move downwards, and the piston cylinder 715 is also moved downwards, the user sets the output stroke of the second hydraulic rod 713 in advance, 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 extruded, through the cooperation of the hose 727, so that the drive plate 722 drives the drive rod 723 to move downward, through the cooperation of the first connecting rod 725 and the second connecting rod 726, so that the third rotating plate 724 rotates, when the thickness of the plate workpiece is thicker and needs to be cut using the second laser cutting head 703, the piston bolt 717 moves upward by a larger distance, the drive rod 723 descends by a larger distance, so that the third rotating plate 724 rotates by a larger angle, when the rotating angle of the third rotating plate 724 reaches more than ninety degrees, the third rotating plate 724 drives the connecting rod 701 to overturn, at this time, the second hydraulic rod 713 is activated in reverse to move the piston cylinder 715 upward, so that the piston plate 719 and the drive plate 722 return to the original position, 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 one hundred and eighty degree overturn, so that the second laser cutting head 703 with more power and more suitable for thicker plates is located below the connecting rod 701, and the plate workpiece is laser cut, the second rotating plate 704 is provided so that when the thickness of the plate workpiece is a critical value, that is, through the extrusion of the workpiece plate, the rotating angle of the third rotating plate 724 just reaches ninety degrees, at this time, through the rebound force of the connecting spring 712, the second rotating plate 704 continues to rotate, so that 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 overturning, avoiding the third rotating plate 724 returning to the original position in the opposite rotating 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 needed to complete the overturning, the rebound force of the connecting spring 712 will not cause obstruction, on the contrary, when the thickness of the plate workpiece is thinner, the rotating angle of the third rotating plate 724 does not reach ninety degrees, the first laser cutting head 702 is still located below the connecting rod 701, facilitating subsequent laser cutting of the thin plate, so that the first laser cutting head 702 and the second laser cutting head 703 can automatically switch according to the thickness of the plate workpiece, which is beneficial to improve the laser cutting efficiency and the quality rate, compared with the prior art, the problem of slow cutting and poor cutting effect when the laser cutting head with lower power cuts thick plates is avoided, and the problem of burr when the laser cutting head with larger power cuts thin plates is also avoided.

[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: in use, the user places the workpiece to be cut on the four limiting seats 506 and makes the workpiece above the rollers 507, the user starts the motor 526, drives the connecting shaft 524 to rotate, thereby driving the gear 513 to rotate, and at the same time, the first transmission belt 525 is matched to make the lead screw 523 rotate at the same time, the threaded connection between the lead screw 523 and the lifting rod 521 and the cooperation of the second telescopic rod 520 make the lifting plate 515 move upwards until the top of the lifting plate 515 and the bottom of the supporting plate 519 are in contact, thereby supporting the bottom of the workpiece by the lifting plate 515 and the supporting plate 519, when the gear 513 rotates, the meshing of the gear 513 and the gear ring 511 makes the gear ring 511 rotate, the driving block 512 is located at the end of the inner wall of the driving groove 510 in the initial state, the gear ring 511 drives the driving block 512 to slide in the inside of the driving groove 510 when rotating, and when the driving block 512 reaches the other end of the inner wall of the driving groove 510, the inner wall of the driving groove 510 is extruded to drive the rotating disc 501 to rotate, when the rotating disc 501 rotates, the arc-shaped groove 502 extrudes the sliding shaft 503, the cooperation of the sliding groove 504 makes the sliding shaft 503 drive the sliding block 505 and the limiting seat 506 to move towards the center axis of the cutting table 1, at this time, the workpiece slides relative to the limiting seat 506, drives the roller 507 to rotate, the setting of the roller 507 changes the sliding friction between the workpiece and the limiting seat 506 into rolling friction, reduces the friction, and when the limiting seat 506 reaches the preset position, the first hydraulic rod 509 is started to drive the limiting plate 508 to move, the limiting plate 508 is finely adjusted to make the workpiece be clamped by the four limiting plates 508, when the roller 507 rotates, the rotating rod 604 rotates, the cooperation of the second transmission belt 605 drives the first rotating plate 601 and the first transmission shaft 603 to rotate, extrudes the inner wall of the first transmission groove 609, and the cooperation of the first fixed block 606 makes the first transmission frame 608 drive the first transmission rod 607 to reciprocate in the vertical direction, when the workpiece slides relative to the limiting seat 506 above the roller 507, the workpiece drives the moving block 611 to move towards the limiting plate 508, thereby making the moving block 611 drive the connecting plate 619 to move, the connecting plate 619 is staggered with the first transmission rod 607 in the vertical direction, the first transmission rod 607 cannot drive the knocking rod 617 and the knocking head 618 to move upwards through the connecting plate 619 to knock the workpiece, thereby avoiding the influence of knocking on the workpiece when limiting, when the limiting plate 508 clamps the workpiece, the arc-shaped side of the wedge block 613 is in contact with the limiting plate 508, the limiting plate 508 extrudes the wedge block 613 to retract into the inside of the moving cavity 612, at this time, the rebound force of the moving spring 615,The mobile block 611 is returned to the original position and is located below the workpiece. Before the plate workpiece is laser cut, the second hydraulic rod 713 drives the first descending plate 714 to move downward, and the piston cylinder 715 moves downward together. The user sets the output stroke of the second hydraulic rod 713 in advance. 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 extruded. 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 relatively thick and needs to be cut by the second laser cutting head 703, the piston bolt 717 moves upward by a larger distance, and the driving rod 723 moves downward by a larger distance, so that the third rotating plate 724 rotates by a larger angle. When the rotating angle of the third rotating plate 724 exceeds ninety degrees, the third rotating plate 724 drives the connecting rod 701 to overturn. At this time, the second hydraulic rod 713 is reversely started to move the piston cylinder 715 upward, so that the piston plate 719 and the driving plate 722 return to the original position. In this process, the second connecting rod 726 reaches the other side of the initial position on the third rotating plate 724, so that the third rotating plate 724 drives the connecting rod 701 to complete a 180-degree overturning, 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 cut the plate workpiece. The second rotating plate 704 is arranged so that when the thickness of the plate workpiece is a critical value, that is, the workpiece plate extrusion makes the rotating angle of the third rotating plate 724 just reach ninety degrees. At this time, through the resilience of the connecting spring 712, the second rotating plate 704 continues to rotate, so that 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 overturning, avoiding the third rotating plate 724 returning to the original position in the opposite rotating direction. The resilience of the connecting spring 712 is much smaller than that of the descending spring 720, so that when the resilience of the descending spring 720 is needed to complete the overturning, the resilience of the connecting spring 712 will not cause obstruction. On the contrary, when the thickness of the plate workpiece is relatively thin, the rotating angle of the third rotating plate 724 does not 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 thin plates. After the workpiece is laser cut, the motor 526 is reversely started, 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 rotating disc 501 to rotate, so that the limiting seat 506 releases the clamping of the workpiece. On the contrary, the limiting plate 508 releases the workpiece, which also makes the roller 507 slide. At this time, since the mobile block 611 has returned to the original position, when the first transmission rod 607 reciprocates upward, the connecting plate 619 is extruded, so that the knocking rod 617 drives the knocking head 618 to knock the bottom of the workpiece.Thus, the finished workpiece is dropped from the frame of the initial workpiece to the receiving plate 519 by vibration, and the workpiece is received and damped after being dropped to the receiving plate 519 by the return spring 517 and the first damper 518. After the user takes away the workpiece, the wedge block 613 returns to the original position by the elastic force of the compression spring 614, so as to be used next time.

Claims

1. A laser cutting jig, comprising a cutting table (1) and a supporting leg (2), a sliding rail (3) is fixedly installed on the top of the cutting table (1), and a moving table (4) is installed on the surface of the sliding rail (3), characterized in that: The top of the cutting table (1) is provided with a limiting mechanism, the limiting mechanism comprises, A rotating disc (501) is rotatably installed inside the cutting table (1), an arc-shaped slot (502) is formed in the rotating disc (501), and a sliding shaft (503) is slidably sleeved in the arc-shaped slot (502); A sliding groove (504) is formed in the top of the cutting table (1), a sliding block (505) is slidably sleeved in the sliding groove (504), the bottom of the sliding block (505) is fixedly connected with the top of the sliding shaft (503), a limiting seat (506) is fixedly installed on the top of the sliding block (505), and the limiting seat (506) is L-shaped in cross section; A plurality of rollers (507) are rotatably installed in the limiting seat (506), the height of the top of the roller (507) is higher than the height of the bottom wall of the limiting seat (506), and a limiting plate (508) is slidably arranged on the bottom wall of the limiting seat (506); A first hydraulic rod (509) is fixedly installed on the side, away from the limiting plate (508), of the limiting seat (506), and the output end of the first hydraulic rod (509) is fixedly connected with the limiting plate (508); A knocking mechanism is arranged in the limiting seat (506), the knocking mechanism comprises a first rotating plate (601), the first rotating plate (601) is rotatably installed in the limiting seat (506), a follower rod (602) is fixedly installed on one side of the first rotating plate (601), a first transmission shaft (603) is fixedly installed on the other side of the first rotating plate (601), a rotating rod (604) is fixedly sleeved between the plurality of rollers (507), the rotating rod (604) and the follower rod (602) are fixedly sleeved with a second rotating wheel, the rotating rod (604) and the follower rod (602) are sleeved with a second transmission belt (605) through the second rotating wheel, a first fixed block (606) is fixedly installed in the limiting seat (506), a first transmission rod (607) is slidably sleeved in 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) is formed in the first transmission frame (608), and the first transmission shaft (603) is slidably sleeved in the first transmission groove (609). The top of the limiting seat (506) is provided with a limiting groove (610), a moving block (611) is slidably arranged in the limiting groove (610), a moving cavity (612) is formed in the top of the moving block (611), a wedge block (613) is slidably arranged in 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 arranged at the bottom of the inner wall of the moving cavity (612), the other end of the extrusion spring (614) is fixedly connected with the bottom of the wedge block (613), a moving spring (615) is fixedly arranged on the inner wall of the limiting groove (610), the other end of the moving spring (615) is fixedly connected with the moving block (611), and a limiting strip (616) is fixedly arranged in the limiting groove (610). A knocking rod (617) is slidably arranged in the moving block (611), a knocking head (618) is fixedly arranged on the top of the knocking rod (617), a connecting plate (619) is fixedly arranged at the bottom of the knocking rod (617), the shape of the connecting plate (619) is Z-shaped, the connecting plate (619) is located above the first transmission rod (607), a reset spring (620) is fixedly arranged on the top of the connecting plate (619), and the other end of the reset spring (620) is fixedly connected with the bottom of the moving block (611).

2. The laser cutting jig of claim 1, wherein, The surface of the rotating disc (501) is provided with a driving groove (510), a gear ring (511) is rotatably arranged in the cutting table (1), the gear ring (511) is arranged on the outer side of the rotating disc (501), a driving block (512) is fixedly arranged on the inner wall of the gear ring (511), the driving block (512) is slidably arranged in the driving groove (510), and a gear (513) is rotatably arranged in the cutting table (1).

3. The laser cutting fixture of claim 2, wherein, The top of the cutting table (1) is provided with a lifting groove (514), a lifting plate (515) is slidably arranged in the lifting groove (514), a through groove (516) penetrating up and down is formed in the lifting plate (515), a return spring (517) and a first damper (518) are fixedly arranged at the bottom of the inner wall of the lifting groove (514), the return spring (517) and the first damper (518) are arranged in the through groove (516), the other end of the return spring (517) and the first damper (518) is fixedly provided with a bearing plate (519), and the height of the top of the bearing plate (519) is flush with the height of the top of the bottom wall of the limiting seat (506).

4. The laser cutting fixture of claim 3, wherein, The bottom of the inner wall of the lifting groove (514) is fixedly installed with a second telescopic rod (520), one end of the second telescopic rod (520) is fixedly connected with the lifting plate (515), the bottom of the lifting plate (515) is fixedly installed with a lifting rod (521), the inside of the cutting table (1) is rotatably installed with a lead screw (523), the top of the lead screw (523) penetrates into the inside of the lifting groove (514), the lead screw (523) is sleeved in the inside of the lifting rod (521), and the lead screw (523) is in threaded connection with the lifting rod (521).

5. The laser cutting fixture of claim 4, wherein, The bottom of the gear (513) is fixedly installed with a connecting shaft (524), the surfaces of the lead screw (523) and the connecting shaft (524) are fixedly sleeved with first rotating wheels, the lead screw (523) and the connecting shaft (524) are sleeved with a first transmission belt (525) through the first rotating wheels, the bottom of the cutting table (1) is fixedly installed with a motor (526), and the output end of the motor (526) is fixedly connected with the bottom of the connecting shaft (524).

6. The laser cutting fixture of claim 5, wherein, The mobile station (4) is provided with a turnover mechanism, the turnover mechanism includes connecting rod (701), the connecting rod (701) is rotatably mounted on the mobile station (4), the bottom and top of the connecting rod (701) are mounted with first laser cutting head (702) and second laser cutting head (703) respectively, the left side of the connecting rod (701) is fixedly installed with second rotating plate (704), the left side of the second rotating plate (704) is fixedly installed with second transmission shaft (705), the left side of the mobile station (4) is fixedly installed with second fixed block (706), the inside of the second fixed block (706) is slidably sleeved with second transmission rod (707), the rear side of the second transmission rod (707) is fixedly installed with second transmission frame (708), the second transmission frame (708) is provided with second transmission groove (709) that penetrates left and right, the second transmission shaft (705) is slidably sleeved in the second transmission groove (709), the left and right sides of the mobile station (4) are both fixedly installed with support plate (710), the left side of the mobile station (4) is fixedly installed with third fixed block (711), the second transmission rod (707) and third fixed block (711) are fixedly installed with connecting spring (712), the top of one of the support plate (710) is fixedly installed with second hydraulic rod (713), the output end of the second hydraulic rod (713) is fixedly installed with first descending plate (714), the bottom of the first descending plate (714) is fixedly installed with piston cylinder (715), the bottom of the piston cylinder (715) is fixedly installed with second descending plate (716), the inside of the piston cylinder (715) is slidably installed with piston plug (717), the bottom of the piston plug (717) is fixedly installed with piston rod (718), the bottom of the piston rod (718) penetrates to the bottom of the second descending plate (716), the bottom of the piston rod (718) is fixedly installed with piston plate (719), the piston plate (719) and the second descending plate (716) are fixedly installed with descending spring (720), the right side of the mobile station (4) is fixedly installed with drive cylinder (721), the inside of the drive cylinder (721) is slidably installed with drive plate (722), the bottom of the drive plate (722) is fixedly installed with drive rod (723), the bottom of the drive rod (723) penetrates to the bottom of the drive cylinder (721), the right side of the connecting rod (701) is fixedly installed with third rotating plate (724), the right side of the third rotating plate (724) is fixedly installed with first connecting rod (725), the 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 with the first connecting rod (725), the other end of the second connecting rod (726) is rotatably connected with the drive rod (723), the drive cylinder (721) and the piston cylinder (715) are installed with hose (727),The inner cavity of the drive cylinder (721) and the inner cavity of the piston cylinder (715) are connected in communication by a hose (727).

7. A laser cutting apparatus comprising the laser cutting fixture according to any one of claims 1-6.

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