Compact laser cutting equipment

Abstract

The invention relates to the technical field of laser cutting, and discloses compact laser cutting equipment which comprises a rack, a cross beam sliding frame, a Y-axis driving mechanism, a T-shaped sliding plate, an X-axis driving mechanism, a Z-axis square tube, a Z-axis driving mechanism, a flat bottom plate, a bent frame, a C-axis motor, a B-axis motor, a U-axis linear module and a laser cutting head. The middle of the hanging flat plate is provided with an avoiding opening allowing a machine body of the C-axis motor to penetrate through, and the hanging flat plate is connected with the flat bottom plate through a leveling structure. A cutting station is arranged in the machine frame, and a workpiece is carried to the cutting station from the outside of the machine frame through the self-positioning sliding workbench to be cut and machined. During field installation and debugging, the axis posture of the C-axis motor can be accurately adjusted through the leveling structure, the quality of cut products can be improved, the rejection rate is reduced, the overall precision of the laser cutting equipment can be effectively improved, and the movement accuracy of the cutting module during working is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a compact laser cutting device. Background Art

[0002] In the context of the booming manufacturing industries such as hardware accessories and auto parts, as the market scale continues to expand, the demand for batch cutting is showing a rapid growth trend. In order to meet the needs of efficient production, laser cutting equipment has been widely used in these fields with its advantages of high precision and high speed, and its overseas export sales have also been rising. In international trade transportation, in order to reduce transportation costs and improve transportation efficiency, laser cutting equipment needs to meet the requirements of direct loading of the whole machine into the container, which poses a higher challenge to the compact design of the equipment.

[0003] Laser cutting equipment usually relies on the joint operation of the X-axis, Y-axis, Z-axis, B-axis, C-axis and U-axis to give the laser cutting head flexible multi-axis motion capabilities, so that it can cope with complex and diverse cutting process requirements and achieve high-precision cutting tasks such as special-shaped contours and multi-dimensional bevels. However, the existing technology has many problems in the multi-axis linkage design of the laser cutting head, which seriously restricts the further improvement of the equipment performance.

[0004] Taking the multi-axis linkage solution of the laser head disclosed in the patent (publication number CN 221134474U) as an example, it has obvious defects in structural design. In this solution, a flat bottom plate is fixed at the bottom of the Z-axis drive assembly, and the C-axis rotary drive assembly is directly installed on the flat bottom plate. Due to the constraints of the company's manufacturing and processing accuracy level, it is difficult to ensure absolute flatness during the processing of the flat bottom plate, and the C-axis rotary drive assembly will inevitably produce certain errors during installation, which leads to the C-axis being prone to motion deflection in actual operation. Moreover, once the installation is completed, due to structural limitations, the verticality of the C-axis cannot be effectively adjusted, which seriously affects the accuracy and quality of laser cutting, and limits the application of such laser cutting equipment in batch cutting production of hardware accessories, automotive accessories, etc. that require high cutting accuracy.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a compact laser cutting device, which aims to indirectly adjust the axis deviation of the C-axis motor through a leveling structure to compensate for the problems caused by insufficient manufacturing accuracy of the flat bottom plate.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A compact laser cutting device comprises a frame, a beam slide slidably arranged on the top of the frame, a Y-axis driving mechanism for driving the beam slide to move forward and backward, a T-shaped slide slidably arranged on the beam slide, an X-axis driving mechanism for driving the T-shaped slide to move left and right, a Z-axis square tube slidably arranged on the T-shaped slide, a Z-axis driving mechanism for driving the Z-axis square tube to move up and down, a flat bottom plate fixed at the bottom of the Z-axis square tube, a bending frame arranged below the flat bottom plate, a C-axis motor arranged at the upper end of the bending frame, a B-axis motor arranged at the lower end of the bending frame, a U-axis linear module connected to the output end of the B-axis motor, and a laser cutting head arranged on the slide of the U-axis linear module, wherein the head of the C-axis motor is mounted on a hanging flat plate, a middle portion of the hanging flat plate is provided with an avoidance opening for the body of the C-axis motor to pass through, and the hanging flat plate is connected to the flat bottom plate through a leveling structure; a cutting station is arranged in the frame, and a workpiece is transported from the outside of the frame to the cutting station through a self-positioning sliding workbench to realize cutting processing.

[0009] As a further improvement of the above technical solution, the leveling structure includes vertical screws arranged on three corners of the flat bottom plate and a ball joint bearing that can be universally rotatably arranged on the remaining corner. Through holes are provided at the four corners of the suspension plate, through which the screw bodies that are adapted to the three vertical screws and the ball joint bearings pass. Each vertical screw is provided with an upper adjusting nut that presses against the top surface of the suspension plate, and each vertical screw is provided with a lower adjusting nut that presses against the bottom surface of the suspension plate. The screw body of the ball joint bearing is provided with a locking nut that fixes the suspension plate to the ball joint bearing.

[0010] As a further improvement of the above technical solution, a flat medium is provided between the upper adjusting nut and the suspension plate, and an elastic medium is provided between the lower adjusting nut and the suspension plate.

[0011] As a further improvement of the above technical solution, a downward static pointer is provided on the suspension plate, and a moving pointer is provided on the bending frame. The static pointer and the moving pointer point to and align with each other when the bending frame rotates around the B axis to the reference position.

[0012] As a further improvement of the above technical solution, the beam slide includes a square beam and a first support and a second support respectively arranged at the left and right ends of the square beam; the Y-axis driving mechanism includes two Y-axis guide rails and two Y-axis racks arranged on the top of the frame, a first motor arranged on the first support, a second motor arranged on the second support, a first gear arranged on the output end of the first motor, and a second gear arranged on the output end of the second motor; the first support includes two first wing plates extending from the left end side of the square beam, a first flat seat plate connected to the bottom of the first wing plate, a first slider is arranged on the bottom surface of the first flat seat plate at the inner side of the first gear, and in the left-view projection, the first motor is arranged downward on the first flat seat plate and is located between the two first wing plates, and the first motor The axis coincides with the vertical center axis of the square crossbeam, and the vertical center axis of the square crossbeam vertically divides the first slider evenly; the second support includes two second wing plates extending from the right end side of the square crossbeam, and a second flat seat plate connected to the bottom of the second wing plate, and the bottom surface of the second flat seat plate is provided with a second slider on the inner side of the second gear. In the right-view projection, the second motor is arranged downward on the second flat seat plate and is located between the two second wing plates. The axis of the second motor coincides with the vertical center axis of the square crossbeam, and the vertical center axis of the square crossbeam vertically divides the second slider evenly; the first gear is transmission connected to one of the Y-axis racks, the second gear is transmission connected to the other Y-axis rack, the first slider is slidably connected to one of the Y-axis guide rails, and the second slider is slidably connected to the other Y-axis guide rail.

[0013] As a further improvement of the above technical solution, the area between the two first wing plates and enclosed by the first flat seat plate is the first transmission area, the first wing plate is away from the first motor and enclosed by the first flat seat plate are two mutually symmetrical first structural stabilization areas, the first flat seat plate and the first wing plate are reinforced and connected at the intersection of the first structural stabilization areas by a first triangular plate; a third slider is provided on the bottom surface of the first flat seat plate below the two first structural stabilization areas, and the first slider is arranged in the same row as the two third sliders.

[0014] As a further improvement of the above technical solution, the area between the two second wing plates and enclosed by the second flat seat plate is the second transmission area, the second wing plate is away from the second motor and enclosed by the second flat seat plate are two mutually symmetrical second structural stabilization areas, the second flat seat plate and the second wing plate are reinforced by a second triangular plate at the intersection of the second structural stabilization areas; the bottom surface of the second flat seat plate is provided with a fourth slider below the two second structural stabilization areas, and the second slider is arranged in the same row as the two fourth sliders.

[0015] As a further improvement of the above technical solution, the frame includes four vertical beams arranged in a rectangular shape, a first longitudinal beam arranged on the top of the two vertical beams on the left and extending forward and backward, and a second longitudinal beam arranged on the top of the two vertical beams on the right and extending forward and backward. The first longitudinal beam and the second longitudinal beam are parallel to each other and both have mounting plates on the top surface, and the mounting plates are used for the installation of the Y-axis guide rail and the Y-axis rack. The outer surfaces of the first longitudinal beam and the second longitudinal beam are provided with oil collecting troughs, and the mounting plates are provided with guide grooves for guiding the lubricating oil to flow to the oil collecting troughs.

[0016] As a further improvement of the above technical solution, the self-positioning sliding workbench includes a base frame, a feeding slide slidably arranged on the base frame, a working platform arranged on the feeding slide, and a traction mechanism for pulling the feeding slide to move forward and backward, the traction mechanism includes a DC motor fixed on the base frame, a reducer connected to the DC motor drive, a driving sprocket arranged on the output end of the reducer, a first driven sprocket arranged on the front end of the base frame, and a second driven sprocket arranged on the rear end of the base frame, the driving sprocket, the first driven sprocket and the second driven sprocket are driven by a chain and the two ends of the chain are respectively connected to the feeding slide through a tightening structure; a positioning block is provided on the feeding slide, a front station and a rear station are provided on the base frame, a front travel switch that can be triggered by the positioning block is provided at the front station to detect whether the feeding slide has moved forward to the position; a rear travel switch that can be triggered by the positioning block is provided at the rear station to detect whether the feeding slide has moved backward to the position; a front locking structure and a rear locking structure for locking the positioning block that has moved into position are provided on the base frame.

[0017] As a further improvement of the above technical solution, the base frame is provided with a front buffer and a rear buffer for absorbing the kinetic energy of the positioning block that is about to move into place; the front locking structure includes a front limit block and a front corner pressing cylinder, and the pressure head of the front corner pressing cylinder presses the positioning block on the rear end face of the front limit block, thereby limiting the movement of the feeding slide; the rear locking structure includes a rear limit block and a rear corner pressing cylinder, and the pressure head of the rear corner pressing cylinder presses the positioning block on the front end face of the rear limit block, thereby limiting the movement of the feeding slide.

[0018] Beneficial effects of the present invention: Compared with the prior art, the compact laser cutting equipment provided by the present invention can realize the efficient integration of the components required for the complex multi-axis linkage cutting function by cleverly designing the crossbeam slide, T-shaped slide, Z-axis square pass and the relative positions of the multi-axis drive mechanism, motor and module, reduce the overall space occupied by the equipment, meet the requirements of direct loading of the whole machine into the container, reduce transportation costs, improve transportation efficiency, meet the needs of international trade transportation, and enhance the international market competitiveness of the product. In addition, during on-site installation and commissioning, the axis posture of the C-axis motor can be accurately adjusted through the leveling structure, which is conducive to improving the quality of the cut product, reducing the scrap rate, and can effectively improve the overall accuracy of the laser cutting equipment, ensuring the movement accuracy of the cutting module during operation. In addition, the leveling structure helps to maintain the stable operation of the equipment, reduce the vibration and wear problems caused by the poor posture of the components of the equipment, thereby extending the service life of the equipment, reducing the maintenance cost and downtime of the equipment, and improving production efficiency. In the batch cutting production in the manufacturing fields such as hardware accessories and auto parts, it can better meet the production needs and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention provides a compact laser cutting device. Figure 1 .

[0020] Figure 2 The present invention provides a compact laser cutting device. Figure 2 .

[0021] Figure 3 Schematic diagram of the Z-axis square tube connected to the bending frame through the leveling structure Figure 1 .

[0022] Figure 4 for Figure 3 Magnified view of area A.

[0023] Figure 5 Schematic diagram of the Z-axis square tube connected to the bending frame through the leveling structure Figure 2 .

[0024] Figure 6 for Figure 5 Magnified view of area B.

[0025] Figure 7 Schematic diagram of the structure of the suspended plate.

[0026] Figure 8 Schematic diagram of the assembly of the crossbeam carriage and the Y-axis drive mechanism Figure 1 .

[0027] Fig. 9 Schematic diagram of the assembly of the crossbeam carriage and the Y-axis drive mechanism Figure 2 .

[0028] Fig.10 Schematic diagram of the assembly of the crossbeam carriage and the Y-axis drive mechanism Figure 3 .

[0029] Fig.11 It is the left view of the crossbeam carriage and Y-axis drive mechanism.

[0030] Fig.12 Schematic diagram of the movement and positioning of the traction mechanism of the self-positioning sliding workbench Figure 1 .

[0031] Fig.13 Schematic diagram of the movement and positioning of the traction mechanism of the self-positioning sliding workbench Figure 2 .

[0032] Fig.14 for Fig.13 Magnified view of the middle L region.

[0033] Main component symbol description: 1-frame, 11-first longitudinal beam, 12-second longitudinal beam, 13-vertical beam, 14-mounting plate, 141-guide groove, 15-oil collecting tank body, 151-oil drain valve, 171-arched beam, 172-bottom beam, 2-cross beam slide, 21-square cross beam, 22-first support, 221-first wing plate, 222-first flat seat plate, 223-first transmission area, 224-first structural stabilization area, 225-first triangular plate, 23-second support, 231-second wing plate, 232-second flat seat plate, 233-first Second transmission area, 234-second structural stabilization area, 3-Y-axis drive mechanism, 34-first motor, 341-first gear, 35-second motor, 351-second gear, 361-first slider, 362-second slider, 363-third slider, 364-fourth slider, 37-Y-axis rack, 38-Y-axis guide rail, 41-T-shaped slide plate, 42-X-axis drive mechanism, 50-Z-axis drive mechanism, 51-Z-axis square pass, 52-flat bottom plate, 53-bend frame, 54-C-axis motor, 55-B-axis motor, 56-suspension plate, 561 - flange ring, 562-through hole, 563-avoidance, 571-vertical screw, 572-upper adjustment nut, 573-lower adjustment nut, 574-positioning piece, 575-elastic medium, 576-ball joint bearing, 577-locking nut, 578-static pointer, 579-dynamic pointer, 58-U-axis linear module, 59-laser cutting head, 6-self-positioning sliding workbench, 61-base, 62-feeding slide, 63-working platform, 64-traction mechanism, 641-DC motor, 642-reducer, 643-driving sprocket, 644 -First driven sprocket, 645-second driven sprocket, 646-chain, 65-tightening structure, 661-first sub-block, 662-second sub-block, 671-front travel switch, 672-rear travel switch, 681-front locking structure, 6811-front limit block, 6812-front turning angle downward pressure cylinder, 682-rear locking structure, 6821-rear limit block, 6822-rear turning angle downward pressure cylinder, 691-front buffer, 692-rear buffer, 601-front workstation, 602-rear workstation, 603-guard plate structure, 7-load reduction cylinder. DETAILED DESCRIPTION

[0034] The present invention provides a compact laser cutting device. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0035] See also Figures 1 to 7The present invention provides a compact laser cutting device, comprising a frame 1, a beam slide 2 slidably arranged on the top of the frame 1, a Y-axis driving mechanism 3 for driving the beam slide 2 to move forward and backward, a T-shaped slide 41 slidably arranged on the beam slide 2, an X-axis driving mechanism 42 for driving the T-shaped slide 41 to move left and right, a Z-axis square passage 51 slidably arranged on the T-shaped slide 41, a Z-axis driving mechanism 50 for driving the Z-axis square passage 51 to move up and down, a flat bottom plate 52 fixed at the bottom of the Z-axis square passage 51, a bent frame 53 arranged below the flat bottom plate 52, and a curved frame 53 arranged at the upper end of the bent frame 53. A C-axis motor 54, a B-axis motor 55 arranged at the lower end of the bending frame 53, a U-axis linear module 58 connected to the output end of the B-axis motor 55, and a laser cutting head 59 arranged on the slide of the U-axis linear module 58. The head of the C-axis motor 54 is mounted on a hanging plate 56. The middle part of the hanging plate 56 is provided with an avoidance opening 563 for the body of the C-axis motor 54 to pass through. The hanging plate 56 is connected to the flat bottom plate 52 through a leveling structure. A cutting station is arranged in the frame 1, and the workpiece is transported from the outside of the frame 1 to the cutting station for cutting processing through a self-positioning sliding workbench 6.

[0036] When the laser cutting structure is debugged and installed on site, the leveling structure can be used to adjust the horizontality of the suspension plate 56 relative to the flat bottom plate 52, thereby indirectly adjusting the posture of the C-axis motor 54, so that the cutting module associated with the C-axis motor 54 can operate in a suitable horizontal state, ensuring the movement coordination and accuracy between the various components during the laser cutting process, and reducing cutting errors or unstable equipment operation caused by poor postures such as tilt.

[0037] Compared with the prior art, the compact laser cutting equipment provided by the present invention can accurately adjust the axis posture of the C-axis motor 54 through the leveling structure, which is conducive to improving the quality of the cut product, reducing the scrap rate, and can effectively improve the overall accuracy of the laser cutting equipment, ensuring the movement accuracy of the cutting module during operation. In addition, the leveling structure helps to maintain the stable operation of the equipment, reduce the vibration, wear and other problems caused by the poor posture of the components of the equipment, thereby extending the service life of the equipment, reducing the maintenance cost and downtime of the equipment, and improving production efficiency. In the batch cutting production of hardware accessories and automotive accessories and other manufacturing fields, it can better meet the production needs and ensure product quality.

[0038] The compact laser cutting equipment is built on a stable frame 1, which serves as the supporting skeleton of the entire equipment, carrying various components and providing a stable environment for the cutting operation. The Y-axis drive mechanism 3 is installed on the top of the frame 1, which is connected to the slidable crossbeam slide 2. By driving the crossbeam slide 2 to move smoothly back and forth, the laser cutting head 59 can be displaced in a large range in the longitudinal direction of the equipment, and can be quickly positioned to different longitudinal positions of the workpiece, laying the foundation for subsequent cutting actions. The T-shaped slide 41 set on the crossbeam slide 2 can slide left and right under the action of the X-axis drive mechanism, and cooperate with the Y-axis movement, so that the laser cutting head 59 can accurately reach any coordinate point in the plane of the workpiece to meet the plane cutting requirements. The Z-axis drive mechanism 50 drives the Z-axis square tube 51 to rise and fall vertically on the T-shaped slide 41, driving the components connected below and the laser cutting head 59 to adjust the height to adapt to the cutting of workpieces of different thicknesses. The C-axis motor 54 is placed at the upper end of the curved frame 53, and its head is mounted on the hanging plate 56. When in operation, it drives the related structures to rotate around the C-axis, giving the laser cutting head 59 the ability to adjust the circumferential angle. When facing special-shaped contour cutting, the cutting direction can be flexibly changed to ensure that the cutting path accurately fits the shape requirements. The B-axis motor 55 is located at the lower end of the curved frame 53 and drives the U-axis linear module 58 connected to the laser cutting head 59. The B-axis motor 55 rotates to adjust the inclination of the U-axis linear module 58 and the laser cutting head 59, and combines the linear motion of the U-axis linear module 58 itself to achieve multi-dimensional bevel cutting to meet the needs of complex process cutting. The hanging plate 56 is connected to the flat bottom plate 52 with the help of a leveling structure to compensate for the C-axis deviation caused by processing and installation errors and ensure the C-axis motion accuracy.

[0039] The self-positioning sliding table 6 not only undertakes the task of transporting the workpiece outside the frame 1 to the cutting station inside the frame 1, but also continues to carry the workpiece during the cutting process. Its self-positioning function uses precise mechanical structures, sensors or a combination of the two to ensure that the workpiece can be placed at the preset position of the cutting station with extremely high precision every time, and the initial relative position with the laser cutting head 59 is accurate. When the workpiece is in place, the various axis drive mechanisms work together to control the laser cutting head 59 to complete complex and diverse cutting actions according to the preset cutting program, achieving high-precision processing.

[0040] From the perspective of the overall structural layout, the various components are tightly and reasonably combined. By cleverly designing the relative positions of the crossbeam slide 2, T-shaped slide 41, Z-axis square tube 51, and multi-axis drive mechanism, motor, and module, the components required for complex multi-axis linkage cutting functions will be efficiently integrated, reducing the overall space occupied by the equipment, meeting the requirements of direct loading of the whole machine into containers, reducing transportation costs, improving transportation efficiency, meeting international trade and transportation needs, and enhancing the international market competitiveness of products. With the perfect X, Y, Z, B, C, and U axis joint operation system, the laser cutting head 59 can move flexibly and changeably. Whether it is a flat special-shaped contour, a multi-dimensional bevel, or a complex cutting process with both, the equipment can handle it, greatly expanding the scope of the cutting process that can be processed, and is suitable for a variety of manufacturing scenarios. It improves the versatility of the equipment and reduces the cost investment of enterprises in purchasing a variety of equipment due to process limitations.

[0041] See also Figure 4 The leveling structure includes vertical screws 571 arranged on three corners of the flat bottom plate 52 and a ball joint bearing 576 rotatably arranged on the remaining corner. The four corners of the suspension plate 56 are provided with through holes 562 for the screw bodies of the three vertical screws 571 and the ball joint bearings 576 to pass through. Each vertical screw 571 is provided with an upper adjustment nut 572 pressed against the top surface of the suspension plate 56, and each vertical screw 571 is provided with a lower adjustment nut 573 pressed against the bottom surface of the suspension plate 56. The screw body of the ball joint bearing 576 is provided with a locking nut 577 for fixing the suspension plate 56 to the ball joint bearing 576. By adjusting the positions of the upper adjustment nut 572 and the lower adjustment nut 573 on the vertical screw 571, the horizontality of the suspension plate 56 can be finely adjusted conveniently. The ball joint bearing 576 can adapt to a certain angle deviation, ensuring the flexibility and accuracy of leveling under different installation conditions and equipment operation processes, effectively solving the problem of posture changes of the C-axis motor 54 caused by manufacturing errors, installation deviations or equipment operation vibrations of the frame 1, and ensuring the high-precision operation of the laser cutting equipment.

[0042] In addition, the upper adjustment nut 572 and the lower adjustment nut 573 are combined to make the connection between the suspension plate 56 and the vertical screw 571 more stable, which can effectively resist various external interferences during the operation of the equipment and prevent the suspension plate 56 from displacement or shaking. At the same time, the movable joint body of the ball joint bearing 576 is set on the flat bottom plate 52 through the positioning member 574, and the locking nut 577 on the screw body of the ball joint bearing 576 fixes the suspension plate 56 to the ball joint bearing 576, further enhancing the stability of the overall structure under complex working conditions, ensuring the reliable operation of the C-axis motor 54 and the cutting module and other components connected thereto during the laser cutting process, and improving the consistency of cutting quality.

[0043] Furthermore, a flat surface is provided between the upper adjusting nut 572 and the suspension plate 56, and the flat surface can evenly distribute the pressure applied by the upper adjusting nut 572 on the suspension plate 56. This can avoid indentations or deformations on the surface of the suspension plate 56 due to excessive local pressure, reduce wear on the suspension plate 56, extend the service life of the suspension plate 56, and ensure long-term stable operation of the leveling structure.

[0044] Preferably, an elastic medium 575 is provided between the lower adjustment nut 573 and the suspension plate 56. During the operation of the equipment, when the equipment is subjected to the impact force generated by external vibration or internal mechanical movement, the elastic medium 575 can play a role in buffering and shock absorption. It can absorb and disperse these impact forces, reduce their impact on the leveling structure and the C-axis motor 54, the suspension plate 56 and other components connected thereto, prevent the components from loosening, deforming or being damaged due to excessive impact, ensure the stability and reliability of the equipment, reduce the occurrence rate of equipment failures, and improve the operation safety of the equipment.

[0045] For further information, see Figure 7 As shown, a flange ring 561 is provided at the avoidance opening 563 of the suspension plate 56, and the head of the C-axis motor 54 is connected to the flange ring 561. Compared with a simple direct connection, the flange ring 561 can evenly disperse the various forces borne by the head, including its own gravity, the torque generated during operation, and the additional force caused by vibration or other external factors during the operation of the equipment. This uniform force characteristic effectively reduces the local stress concentration at the connection part, reduces the risk of loose connection or damage, and ensures that the C-axis motor 54 can still be firmly installed on the suspension plate 56 under long-term and high-intensity working conditions, thereby ensuring the stability of the overall structure of the laser cutting equipment and the reliability of operation.

[0046] Preferably, a downward static pointer 578 is provided on the hanging plate 56, and a moving pointer 579 is provided on the bending frame 53. When the bending frame 53 rotates around the B axis to the reference position, the static pointer 578 and the moving pointer 579 point to each other and align, which provides an intuitive and accurate reference positioning mark for the equipment. During the initial installation and commissioning stage of the equipment, the operator can quickly and accurately adjust the bending frame 53 to the standard reference position according to the alignment of the pointers, ensuring that the initial installation posture of the B-axis motor 55 and related cutting modules and other components meet the design requirements. During the long-term operation of the equipment, if the position of the bending frame 53 is offset due to equipment vibration, component wear or other reasons, by checking the relative position relationship between the static pointer 578 and the moving pointer 579, it can be discovered and recalibrated in time, effectively ensuring the positioning accuracy of the laser cutting equipment at each working stage, thereby improving the dimensional accuracy and quality stability of the cut product.

[0047] The Y-axis drive mechanism 3 of the traditional laser cutting equipment is specifically a drive motor arranged on the support, and a gear is arranged at the output end of the drive motor. The gear cooperates with the rack on the frame 1 to form a transmission, thereby driving the beam to reciprocate along the guide rail of the frame 1, thereby realizing the precise operation of the cutting head at different positions. However, this type of conventional design has significant disadvantages. In the past, the motor was mostly installed on one side of the support, such as close to the front side of the beam, resulting in uneven force during power transmission. Under the actual operation of the equipment and the working conditions where the beam frequently slides back and forth, due to the unreasonable position of the drive motor, eccentric force is easily generated during the power transmission process to the rack. This not only causes violent shaking of the equipment during operation, greatly affects the cutting accuracy, and causes defects such as sawtooth and burrs on the edge of the cut workpiece, reducing product quality; it also additionally aggravates the wear between the various components of the equipment, greatly reduces the service life of the equipment, and increases the maintenance cost and frequency. Furthermore, due to uneven force, the stability of the forward and backward movement of the beam is significantly different. When cutting complex patterns and frequently switching the moving direction, this instability becomes more prominent, causing the cutting head to be mispositioned, making it difficult to meet the needs of high-precision processing. Moreover, the jitter and imbalance problems will also affect the running speed of the equipment. In order to avoid excessive cutting deviations caused by shaking, the cutting speed often has to be reduced, which seriously restricts production efficiency.

[0048] For details, see Figure 8-Figure 11As shown, the beam slide 2 includes a square beam 21 and a first support 22 and a second support 23 respectively arranged at the left and right ends of the square beam 21; the Y-axis driving mechanism 3 includes two Y-axis guide rails 38 and two Y-axis racks 37 arranged on the top of the frame 1, a first motor 34 arranged on the first support 22, a second motor 35 arranged on the second support 23, a first gear 341 arranged on the output end of the first motor 34, and a second gear 351 arranged on the output end of the second motor 35; the first support 22 includes two first wing plates 221 extending from the left end side of the square beam 21, a first flat seat plate 222 connected to the bottom of the first wing plate 221, and the bottom surface of the first flat seat plate 222 is provided with a first slider 361 on the inner side of the first gear 341. In the left-view projection, the first motor 34 is arranged downward on the first flat seat plate 222 and is located between the two first wing plates 221, and the axis of the first motor 34 is aligned with the square beam The vertical center axis of the square beam 21 coincides, and the vertical center axis of the square beam 21 vertically divides the first slider 361 equally; the second support 23 includes two second wing plates 231 extending from the right end side of the square beam 21, and a second flat seat plate 232 connected to the bottom of the second wing plate 231. The bottom surface of the second flat seat plate 232 is provided with a second slider 362 on the inner side of the second gear 351. In the right view projection, the second motor 35 is downwardly arranged on the second flat seat plate 232 and And it is located between the two second wing plates 231, the axis of the second motor 35 coincides with the vertical center axis of the square crossbeam 21, and the vertical center axis of the square crossbeam 21 vertically divides the second slider 362; the first gear 341 is transmission connected to one of the Y-axis racks 37, the second gear 351 is transmission connected to the other Y-axis rack 37, the first slider 361 is slidably connected to one of the Y-axis guide rails 38, and the second slider 362 is slidably connected to the other Y-axis guide rail 38.

[0049] When working, the first motor 34 and the second motor 35 operate synchronously, and their respective output torque drives the first gear 341 and the second gear 351 connected thereto to rotate. Since the first motor 34 is downwardly arranged on the first flat seat plate 222 in the left-view projection, and is located between the two first wing plates 221, its axis coincides with the vertical center axis of the square crossbeam 21; similarly, the layout of the second motor 35 in the right-view projection also follows this rule. This layout makes the power output uniform and symmetrical. When the first gear 341 and the second gear 351 rotate, they rely on the meshing relationship with the corresponding Y-axis rack 37 on the frame 1 to push the crossbeam slide 2 to reciprocate along the Y-axis guide rail 38, thereby accurately controlling the position of the cutting head and realizing the cutting operation. At the same time, a first slider 361 is provided on the bottom surface of the first flat seat plate 222 of the first support 22, and a second slider 362 is provided on the bottom surface of the second flat seat plate 232 of the second support 23. The Y-axis slider cooperates with the Y-axis guide rail 38 to assist the crossbeam slide 2 to slide smoothly and ensure smooth movement. The vertical center axis of the square crossbeam 21 vertically divides the slider, further ensuring that the first slider 361 and the second slider 362 are evenly stressed when carrying the weight of the crossbeam slide 2 and transmitting the motor driving force. Under this symmetrical and evenly divided design, the two sides of the slider can equally share the forces from the crossbeam and during operation, so that the overall forces of the first slider 361 and the second slider 362 are in a balanced state, which greatly extends the service life of the slider and reduces the equipment downtime and maintenance time caused by slider damage.

[0050] The Y-axis drive mechanism 3 provided by the present invention forms a symmetrical layout of the motors on both sides by symmetrically placing the first motor 34 and the second motor 35 on the left and right ends of the square cross beam 21, and the motor axis coincides with the vertical center axis of the cross beam slide 2, which effectively solves the problem of uneven force caused by the motor being installed to one side in the traditional design. With such a layout, the eccentric force is eliminated from the power source, and the gear is evenly stressed during the meshing transmission process with the rack, so that the cross beam slide 2 can maintain a highly stable state throughout the reciprocating sliding stroke, and will not have periodic shaking or offset due to uneven force, which greatly improves the continuity and stability of the sliding action, ensures the precise positioning of the cutting head, and is conducive to the processing of workpieces with complex shapes and high precision requirements.

[0051] The area between the two first wing plates 221 and enclosed with the first flat seat plate 222 is the first transmission area 223. The first wing plate 221 is away from the first motor 34 and enclosed with the first flat seat plate 222 is two mutually symmetrical first structural stabilization areas 224. The first flat seat plate 222 and the first wing plate 221 are reinforced by the first triangular plate 225 at the intersection of the first structural stabilization area 224. The principle of triangular structural stability is cleverly used to greatly enhance the rigidity of the support locally and even as a whole. When the crossbeam slide 2 slides frequently and the equipment is in a long-term vibration condition, the triangular plate can effectively disperse and withstand stress from all directions, prevent cracking, bending and other deformation phenomena between the first wing plate 221 and the first flat seat plate 222, stabilize the support structure, and provide a solid foundation for the smooth operation of the crossbeam slide 2.

[0052] The design of two mutually symmetrical first structural stabilizing areas 224 ensures balanced force on the left and right sides of the first support 22. When bearing the deadweight of the beam carriage 2, the additional weight of the cutting head, and the inertial force during movement, the bilaterally symmetrical structure can synergistically play a supporting role, avoiding imbalance caused by excessive load on one side, preventing the support from twisting and deformation, and maintaining the horizontal and stable posture of the beam in all directions, which meets the stringent requirements of high-precision cutting on the stability of the equipment structure.

[0053] Furthermore, the bottom surface of the first flat seat plate 222 is provided with a third slider 363 below the two first structural stabilizing areas 224. The first slider 361 and the two third sliders 363 are arranged in the same row to form a multi-point support system. When the beam slide 2 slides along the Y-axis guide rail 38, the weight of the beam slide 2 and the upper components are shared, and the pressure is effectively dispersed to avoid uneven wear of the first slider 361 or local compression and deformation of the guide rail due to excessive single-point load. Compared with relying on a single first slider 361 for support, this layout allows the beam slide 2 to be more evenly stressed in the horizontal direction, significantly reducing the risk of shaking and deviation caused by uneven force, ensuring the smooth and linear sliding of the beam slide 2, and improving the positioning accuracy of the cutting operation.

[0054] Similarly, the area between the two second wing plates 231 and enclosed with the second flat seat plate 232 is the second transmission area 233, the second wing plate 231 is away from the second motor 35 and enclosed with the second flat seat plate 232 is two mutually symmetrical second structural stabilization areas 234, and the second flat seat plate 232 and the second wing plate 231 are reinforced by the second triangular plate at the intersection of the second structural stabilization area 234. The second flat seat plate 232 and the second wing plate 231 are reinforced by the second triangular plate at the intersection of the second structural stabilization area 234, which cleverly utilizes the principle of triangular structural stability and greatly enhances the rigidity of the support locally and even as a whole. When the crossbeam slides frequently and the equipment is in a long-term vibration condition, the second triangular plate can effectively disperse and withstand stress from all directions, prevent cracking, bending and other deformation phenomena between the second wing plate 231 and the second flat seat plate 232, stabilize the support structure, and provide a solid foundation for the smooth operation of the crossbeam slide 2.

[0055] The design of two mutually symmetrical second structural stabilizing areas 234 ensures balanced force on the left and right sides of the second support 23. When bearing the deadweight of the beam carriage 2, the additional weight of the cutting head, and the inertial force during movement, the bilaterally symmetrical structure can synergistically play a supporting role, avoiding imbalance caused by excessive load on one side, preventing the support from twisting and deformation, and maintaining the horizontal and stable posture of the beam in all directions, which meets the stringent requirements of high-precision cutting on the stability of the equipment structure.

[0056] Similarly, the bottom surface of the second flat seat plate 232 is provided with a fourth slider 364 below the two second structural stabilizing areas 234. The second slider 362 and the two fourth sliders 364 are arranged in the same row to form a multi-point support system. When the beam slide 2 slides along the Y-axis guide rail 38, the weight of the beam and the upper components are shared, and the pressure is effectively dispersed to avoid uneven wear of the second slider 362 or local compression and deformation of the Y-axis guide rail 38 due to excessive single-point load. Compared with relying on a single slider for support, this layout allows the beam slide 2 to be more evenly stressed in the horizontal direction, significantly reducing the risk of shaking and deviation caused by uneven force, ensuring the smooth and linear sliding of the beam slide 2, and improving the positioning accuracy of the cutting operation.

[0057] For details, see Figure 1 and Figure 2As shown, the frame 1 includes four vertical beams 13 arranged in a rectangular shape, a first longitudinal beam 11 arranged on the top of the two vertical beams 13 on the left and extending forward and backward, and a second longitudinal beam 12 arranged on the top of the two vertical beams 13 on the right and extending forward and backward. The first longitudinal beam 11 and the second longitudinal beam 12 are parallel to each other and both are provided with a mounting plate 14 on the top surface, and the mounting plate 14 is used for installing the Y-axis guide rail 38 and the Y-axis rack 37. An oil collecting tank body 15 is provided on the outer side surface of the first longitudinal beam 11 and the second longitudinal beam 12, and a guide groove 141 for guiding the lubricating oil to flow to the oil collecting tank body 15 is opened on the mounting plate 14.

[0058] When lubricating the Y-axis guide rail 38, the lubricating oil will flow along the guide groove 141 opened on the mounting plate 14 to the oil collecting tank body 15 on the outer side of the first longitudinal beam 11 and the second longitudinal beam 12. When lubricating the Y-axis rack 37, the lubricating oil will directly drip into the oil collecting tank body 15, thereby realizing the effective collection and guidance of the lubricating oil and preventing it from flowing everywhere.

[0059] The frame 1 structure provided by the present invention solves the problem of random flow of lubricating oil, avoids the cleaning problem caused by lubricating oil contaminating the working area environment of the equipment, and maintains the cleanliness of the working environment. Since the lubricating oil is properly collected, the risk of it dripping onto the workpiece being processed below is completely eliminated, ensuring that the workpiece is not contaminated by the lubricating oil during the processing process.

[0060] The oil collecting tank 15 is provided with an oil drain valve 151, which is convenient for pumping out the lubricating oil for centralized treatment or recycling after a certain amount of lubricating oil is collected. This is not only conducive to the recycling of resources, reducing the waste of lubricating oil and reducing production costs, but also ensures that the oil collecting tank 15 always has a good oil storage capacity and maintains the effectiveness of its lubricating oil collection function.

[0061] The rear ends of the first longitudinal beam 11 and the second longitudinal beam 12 are connected by a rear cross beam, and the front ends of the first longitudinal beam 11 and the second longitudinal beam 12 are connected by an arched beam 171. The stability and rigidity of the overall structure of the frame 1 are improved by the reinforcement of the rear cross beam and the arched beam 171. The design of the arched beam 171 serves to increase the height of the front of the frame 1, providing a more spacious and convenient entry space for people. During the daily maintenance and overhaul of the equipment, operators can more easily enter the interior of the equipment to inspect, debug, repair or clean the various components located at the front end of the frame 1, such as the guide rails, racks, crossbeam slides 2 and cutting mechanisms. There is no need to bend over or operate with difficulty in a cramped space, which improves the efficiency and quality of maintenance work, reduces the extension of maintenance time caused by inconvenient operation and the risk of misoperation that may be caused, and helps to ensure the long-term stable operation of the equipment.

[0062] The bottoms of two adjacent vertical beams 13 are connected by a bottom beam 172 to form a stable bottom frame structure. During the operation of the laser cutting equipment, especially when facing large vibrations, shocks or load changes, this bottom connection can effectively disperse and withstand forces from all directions, preventing the vertical beams 13 from displacement, shaking or twisting, greatly improving the rigidity and stability of the overall structure of the frame 1, ensuring that the equipment can still maintain a precise operating state under long-term, high-intensity working conditions, and providing a solid and reliable basic support for the high-precision operation of laser cutting.

[0063] For details, see Figure 12 to Figure 14 As shown, the self-positioning sliding workbench 6 includes a base frame 61, a feeding slide 62 slidably arranged on the base frame 61, a working platform 63 arranged on the feeding slide 62, and a traction mechanism 64 for traction the feeding slide 62 to move forward and backward, the traction mechanism 64 includes a DC motor 641 fixed on the base frame 61, a reducer 642 drivingly connected to the DC motor 641, a driving sprocket 643 arranged on the output end of the reducer 642, a first driven sprocket 644 arranged on the front end of the base frame 61, and a second driven sprocket 645 arranged on the rear end of the base frame 61, the driving sprocket 643, the first driven sprocket 64 4 and the second driven sprocket 645 form a transmission through a chain 646, and the two ends of the chain 646 are respectively connected to the feeding slide 62 through a tightening structure 65; a positioning block is provided on the feeding slide 62, and a front station 601 and a rear station 602 are provided on the base frame 61. A front stroke switch 671 that can be triggered by the positioning block is provided at the front station 601 to detect whether the feeding slide 62 has moved forward to a certain position; a rear stroke switch 672 that can be triggered by the positioning block is provided at the rear station 602 to detect whether the feeding slide 62 has moved backward to a certain position; a front locking structure 681 and a rear locking structure 682 for locking the positioning block that has moved into position are provided on the base frame 61.

[0064] When the workbench is started for operation, the DC motor 641 receives the control signal and starts to operate. The speed and torque characteristics of the DC motor 641 are optimized and adjusted by the reducer 642. The reducer 642 reduces the higher speed output by the motor and increases the torque at the same time, so that its output is suitable for driving the feeding slide 62 to move smoothly. The driving sprocket 643 at the output end of the reducer 642 rotates with the rotation of the reducer 642 shaft. Since the driving sprocket 643, the first driven sprocket 644 at the front end of the base frame 61, and the second driven sprocket 645 at the rear end of the base frame 61 are connected to form a complete transmission system through the chain 646, the chain 646 starts to circulate under the drive of the driving sprocket 643. Both ends of the chain 646 are firmly connected to the feeding slide 62 through a specially designed tightening structure 65. The circular movement of the chain 646 is converted into a traction force on the feeding slide 62, prompting the feeding slide 62 to slide smoothly along the front and rear directions on the base frame 61, thereby realizing the switching of the feeding slide 62 between the front station 601 (cutting station) and the rear station 602 (non-cutting station).

[0065] As the feed slide 62 slides on the base frame 61, the positioning block installed on the feed slide 62 moves synchronously. When the feed slide 62 moves toward the front station 601, the positioning block gradually approaches the front station 601 area. Once the positioning block enters the sensing range of the front travel switch 671 at the front station 601, the front travel switch 671 is immediately triggered to generate a corresponding electrical signal. This electrical signal is transmitted to the control system, and the control system determines that the feed slide 62 has accurately moved forward to the working station, that is, the cutting processing position based on the signal; after the front travel switch 671 detects that the feed slide 62 has moved forward to the position and feeds back the signal, the front locking structure 681 pre-set on the base frame 61 responds quickly. The front locking structure 681 accurately locks the positioning block that has been moved into place through mechanical, electromagnetic or pneumatic means (depending on the specific design), ensuring that the feeding slide 62 will not be displaced at the front station 601 due to equipment vibration, slight elastic deformation of the chain 646 or other external forces, thereby providing a stable platform support for the cutting operation.

[0066] On the contrary, when the feeding carriage 62 moves backward to the rear station 602, the positioning block approaches the rear station 602, triggering the rear travel switch 672 at the rear station 602, and the rear travel switch 672 also sends a signal to the control system indicating that the feeding carriage 62 has moved backward to the position, and the feedback control system feeds the carriage 62 back to the non-working loading and unloading position. When the rear travel switch 672 detects that the feeding carriage 62 has moved backward to the position, the rear locking structure 682 is immediately activated to firmly fix the feeding carriage 62 at the rear station 602, preventing the feeding carriage 62 from accidentally moving during the loading and unloading process, thereby ensuring the operator's operating safety and the accuracy of workpiece loading and unloading.

[0067] When the feeding slide 62 moves at high speed and approaches the end of the workstation, the positioning block has a large kinetic energy. For this reason, the base frame 61 is provided with a front buffer 691 and a rear buffer 692 for absorbing the kinetic energy of the positioning block that is about to move into position. The setting of the front buffer 691 and the rear buffer 692 can effectively absorb the excess kinetic energy of the positioning block when it is about to move into position, and prevent the positioning block from directly hitting the sensor, locking structure or other related components on the base frame 61 due to inertia. This greatly reduces the risk of damage to these precision components caused by hard collisions, extends the service life of each component of the equipment, reduces the frequency and cost of equipment maintenance, and ensures the long-term stable and reliable operation of the entire self-positioning sliding workbench 6.

[0068] The front locking structure 681 includes a front limit block 6811 and a front corner pressing cylinder 6812, the pressure head of the front corner pressing cylinder 6812 presses the positioning block on the rear end surface of the front limit block 6811, thereby limiting the movement of the feeding slide 62; the rear locking structure 682 includes a rear limit block 6821 and a rear corner pressing cylinder 6822, the pressure head of the rear corner pressing cylinder 6822 presses the positioning block on the front end surface of the rear limit block 6821, thereby limiting the movement of the feeding slide 62. The front corner pressing cylinder 6812 and the rear corner pressing cylinder 6822 work in coordination with the corresponding front limit block 6811 and rear limit block 6821, and can achieve accurate and stable mechanical locking of the positioning block that has moved into place. When the feeding slide 62 arrives at the predetermined station, no matter it is the front station 601 or the rear station 602, the corner downward pressure cylinder responds quickly, and its pressure head presses the positioning block tightly against the corresponding end face of the limit block with a large pressure, forming a stable friction force and blocking force, effectively limiting the accidental movement of the feeding slide 62 in any direction, ensuring that during the laser cutting operation (front station 601) or workpiece loading and unloading (rear station 602), the worktable is always in a precise fixed position, ensuring processing accuracy and operation safety.

[0069] The design method of combining the limit block with the corner downward pressure cylinder is adopted, and the overall structure is relatively compact. Compared with large and complicated locking mechanical components, this design can be more reasonably arranged within the limited installation space of the chassis 61, and will not occupy too much surface area of ​​the chassis 61 to affect the installation and operation of other components, and can efficiently complete the locking function, and reserve sufficient space for other functional modules of the workbench such as the traction mechanism 64, the sensor, etc., to ensure the coordination and integrity of the entire workbench structure.

[0070] In this embodiment, the positioning block includes a first sub-block 661 and a second sub-block 662 arranged side by side at the bottom of the feeding slide 62. The first sub-block 661 can trigger the front travel switch 671 and cooperate with the rear locking structure 682; the second sub-block 662 can trigger the rear travel switch 672 and cooperate with the front locking structure 681. After starting the workbench, the DC motor 641 runs, driving the active sprocket 643 to rotate through the reducer 642, and the active sprocket 643 drives the chain 646. The chain 646 drags the feeding slide 62 to slide on the bottom frame 61 in the front-to-back direction by means of the tightening structure 65. The first sub-block 661 and the second sub-block 662 arranged side by side at the bottom of the feeding slide 62 move synchronously accordingly.

[0071] When the workbench on the feeding carriage 62 slides to the front station 601, the first sub-block 661 triggers the front travel switch 671, and the control system waits for the feeding carriage 62 to be fully in place. At this time, the front locking structure 681 is activated to mechanically limit the movement of the second sub-block 662. For example, the front limit block 6811 blocks the forward path of the second sub-block 662, and the pressure head of the front corner downward pressure cylinder 6812 presses down to press the second sub-block 662 against the front limit block 6811, thereby limiting the freedom of movement of the feeding carriage 62 from the side, ensuring the stability of the feeding carriage 62 in the cutting operation at the front station 601, and preventing it from being displaced due to external interference.

[0072] When the workbench on the feeding carriage 62 slides to the rear station 602, the second sub-block 662 triggers the rear travel switch 672, and as the feeding carriage 62 moves backward into position, the rear locking structure 682 takes effect. The rear limit block 6821 limits the retreat path of the first sub-block 661, and the rear corner downward pressure cylinder 6822 presses the first sub-block 661 against the rear limit block 6821, preventing the feeding carriage 62 from accidentally moving forward, thereby ensuring safety and accuracy when loading and unloading workpieces at the rear station 602.

[0073] The first sub-block 661 and the second sub-block 662 are respectively responsible for the sensing and matching locking of different workstations, and a dual positioning guarantee mechanism is constructed. The position of the feeding slide 62 is monitored and controlled from two directions. Compared with a single positioning method, it can more accurately capture whether the feeding slide 62 has reached the predetermined workstation, effectively offset the positioning deviation caused by the slight error of the chain 646 transmission, the mechanical vibration of the feeding slide 62 itself, and other factors, and provide extremely high positioning accuracy for precision processing such as laser cutting, significantly improve product quality, and reduce the probability of waste.

[0074] This cross-locking design allows the feed slide 62 to obtain stable support and restriction at the front and rear stations 602. At the front station 601, even if a large impact force or vibration is generated during the cutting process, the feed slide 62 will not shake easily due to the strong locking of the second sub-block 662 by the front locking structure 681; similarly, when loading and unloading workpieces at the rear station 602, the constraint of the rear locking structure 682 on the first sub-block 661 ensures that the feed slide 62 is stationary, avoiding accidents such as the workpiece falling or colliding. This greatly improves the operating stability of the workbench under different working conditions, reduces the hidden dangers of equipment failure, and ensures the continuity of production.

[0075] During the laser cutting process of hardware accessories and auto parts, a large amount of metal debris will be generated. Therefore, a guard plate structure 603 is provided on the base frame 61 to effectively prevent the debris generated by the cutting from splashing around and falling into the area where the key transmission components and moving components such as the feeding slide 62, the chain 646, and the guide rail are located.

[0076] It is understandable that the specific driving method of the X-axis drive mechanism 42 and the Z-axis drive mechanism 50 is similar to that of the Y-axis drive mechanism 3, which is also a driving motor driving the gear to rotate, and the gear and the rack cooperate to form a transmission method, and the specific structure is not repeated. In order to reduce the load of the Z-axis drive mechanism 50 that drives the Z-axis square tube 51 to move up and down, a vertically downward unloading cylinder 7 is provided on the T-shaped slide 41, and the piston rod end of the unloading cylinder 7 is connected to the side of the Z-axis square tube 51.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0078] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A compact laser cutting device, characterized in that: The machine comprises a frame, a beam slide slidably arranged on the top of the frame, a Y-axis driving mechanism for driving the beam slide to move forward and backward, a T-shaped slide slidably arranged on the beam slide, an X-axis driving mechanism for driving the T-shaped slide to move left and right, a Z-axis square tube slidably arranged on the T-shaped slide, a Z-axis driving mechanism for driving the Z-axis square tube to move up and down, a flat bottom plate fixed at the bottom of the Z-axis square tube, a bending frame arranged below the flat bottom plate, a C-axis motor arranged at the upper end of the bending frame, a B-axis motor arranged at the lower end of the bending frame, a U-axis linear module connected to the output end of the B-axis motor, and a laser cutting head arranged on the slide of the U-axis linear module, wherein the head of the C-axis motor is mounted on a hanging plate, a middle portion of the hanging plate is provided with an avoidance opening for the body of the C-axis motor to pass through, and the hanging plate is connected to the flat bottom plate through a leveling structure; a cutting station is arranged in the frame, and a workpiece is transported from the outside of the frame to the cutting station through a self-positioning sliding workbench to realize cutting processing.

2. The compact laser cutting device according to claim 1, characterized in that: The leveling structure includes vertical screws arranged on three corners of the flat bottom plate and a ball joint bearing that can be universally rotatably arranged on the remaining corner. Through holes are opened at the four corners of the suspension plate, through which the screw bodies that are adapted to the three vertical screws and the ball joint bearings pass. Each vertical screw is provided with an upper adjusting nut that presses against the top surface of the suspension plate, and each vertical screw is provided with a lower adjusting nut that presses against the bottom surface of the suspension plate. The screw body of the ball joint bearing is provided with a locking nut that fixes the suspension plate to the ball joint bearing.

3. The compact laser cutting device according to claim 2, characterized in that: A flat medium is arranged between the upper adjusting nut and the hanging flat plate, and an elastic medium is arranged between the lower adjusting nut and the hanging flat plate.

4. The compact laser cutting device according to claim 2, characterized in that: The hanging plate is provided with a static pointer pointing downwards, and the bending frame is provided with a moving pointer. The static pointer and the moving pointer are aligned with each other when the bending frame rotates around the B axis to the reference position.

5. The compact laser cutting device according to claim 1, characterized in that: The crossbeam slide comprises a square crossbeam and a first support and a second support respectively arranged at the left and right ends of the square crossbeam; the Y-axis driving mechanism comprises two Y-axis guide rails and two Y-axis racks arranged on the top of the frame, a first motor arranged on the first support, a second motor arranged on the second support, a first gear arranged on the output end of the first motor, and a second gear arranged on the output end of the second motor; the first support comprises two first wing plates extending from the left end side of the square crossbeam, a first flat seat plate connected to the bottom of the first wing plate, a first slider is arranged on the bottom surface of the first flat seat plate at the inner side of the first gear, and in the left-view projection, the first motor is arranged downward on the first flat seat plate and is located between the two first wing plates, and the axis of the first motor is aligned with the axis of the square crossbeam. The vertical center axes coincide with each other, and the vertical center axis of the square beam vertically divides the first slider evenly; the second support includes two second wing plates extending from the right end side of the square beam, and a second flat seat plate connected to the bottom of the second wing plate, and the bottom surface of the second flat seat plate is provided with a second slider on the inner side of the second gear. In the right-view projection, the second motor is arranged downward on the second flat seat plate and is located between the two second wing plates. The axis of the second motor coincides with the vertical center axis of the square beam, and the vertical center axis of the square beam vertically divides the second slider evenly; the first gear is connected to one of the Y-axis racks in a transmission manner, and the second gear is connected to the other Y-axis rack in a transmission manner. The first slider is connected to one of the Y-axis guide rails in a sliding manner, and the second slider is connected to the other Y-axis guide rail in a sliding manner.

6. The compact laser cutting device according to claim 5, characterized in that: The area between the two first wing plates and enclosed by the first flat seat plate is the first transmission area, the first wing plate is away from the first motor and enclosed by the first flat seat plate are two mutually symmetrical first structural stabilizing areas, the first flat seat plate and the first wing plate are reinforced and connected at the intersection of the first structural stabilizing areas by the first triangular plate; the bottom surface of the first flat seat plate is provided with a third slider below the two first structural stabilizing areas, and the first slider is arranged in the same row as the two third sliders.

7. The compact laser cutting device according to claim 6, characterized in that: The area between the two second wing plates and enclosed by the second flat seat plate is the second transmission area, the second wing plate is away from the second motor and enclosed by the second flat seat plate is two mutually symmetrical second structural stabilization areas, the second flat seat plate and the second wing plate are reinforced and connected at the intersection of the second structural stabilization areas by a second triangular plate; the bottom surface of the second flat seat plate is provided with a fourth slider below the two second structural stabilization areas, and the second slider is arranged in the same row as the two fourth sliders.

8. The compact laser cutting device according to claim 1, characterized in that: The frame includes four vertical beams arranged in a rectangular shape, a first longitudinal beam arranged on the top of the two vertical beams on the left and extending forward and backward, and a second longitudinal beam arranged on the top of the two vertical beams on the right and extending forward and backward. The first longitudinal beam and the second longitudinal beam are parallel to each other and both have mounting plates on the top surface, and the mounting plates are used for installing the Y-axis guide rail and the Y-axis rack. Oil collecting troughs are provided on the outer sides of the first and second longitudinal beams, and guide grooves are opened on the mounting plates to guide the lubricating oil to flow to the oil collecting troughs.

9. The compact laser cutting device according to claim 1, characterized in that: The self-positioning sliding workbench includes a base frame, a feeding slide slidably arranged on the base frame, a working platform arranged on the feeding slide, and a traction mechanism for pulling the feeding slide to move forward and backward, the traction mechanism includes a DC motor fixed on the base frame, a reducer connected to the DC motor drive, a driving sprocket arranged on the output end of the reducer, a first driven sprocket arranged on the front end of the base frame, and a second driven sprocket arranged on the rear end of the base frame, the driving sprocket, the first driven sprocket and the second driven sprocket are driven by a chain and the two ends of the chain are respectively connected to the feeding slide through a tightening structure; a positioning block is provided on the feeding slide, a front station and a rear station are provided on the base frame, a front travel switch that can be triggered by the positioning block is provided at the front station to detect whether the feeding slide has moved forward to the position; a rear travel switch that can be triggered by the positioning block is provided at the rear station to detect whether the feeding slide has moved backward to the position; a front locking structure and a rear locking structure for locking the positioning block that has moved into position are provided on the base frame.

10. The compact laser cutting device according to claim 9, characterized in that: The base frame is provided with a front buffer and a rear buffer for absorbing the kinetic energy of the positioning block that is about to move into place; the front locking structure includes a front limit block and a front corner pressing cylinder, and the pressure head of the front corner pressing cylinder presses the positioning block on the rear end surface of the front limit block, thereby limiting the movement of the feeding slide; the rear locking structure includes a rear limit block and a rear corner pressing cylinder, and the pressure head of the rear corner pressing cylinder presses the positioning block on the front end surface of the rear limit block, thereby limiting the movement of the feeding slide.

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