A laser cutting machine with a material cutting deviation prevention function

Abstract

The present application relates to a kind of laser cutting machine with cutting material anti-deviation function, including laser cutting machine frame, the workbench for supporting material is installed on the top of laser cutting machine frame, strip-shaped through hole is set in both sides of workbench, several equidistant support racks are connected in workbench by inserting, laser generator is set on the top of laser cutting machine frame, and laser generator can move along laser cutting machine frame transversely longitudinally vertically, laser generator is moved by guide rail and drive device, automatic moving positioning fixed material device is set in two strip-shaped through holes, waste trolley is set in the bottom of laser cutting machine frame;By the precise rack, servo motor and cylinder system, material is accurately positioned and fixed automatically, avoid the condition that material deviates or position is not accurate in traditional cutting machine, guarantee the high precision of cutting.Effectively improve the cutting quality, reduce the cutting defect and waste due to material deviation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting machines, in particular to a laser cutting machine with a cutting material anti-deviation function. BACKGROUND

[0002] With the continuous development of industrial manufacturing, laser cutting technology has been widely used in the processing field of various materials such as metal, plastic and ceramic. Laser cutting machine realizes the cutting of materials through high temperature and high energy of laser beam, which has the advantages of high cutting precision, small heat affected zone, fast cutting speed and small workpiece deformation, and becomes an indispensable equipment in modern manufacturing industry. However, in the actual application process, especially in the process of high-precision cutting, the fixation and positioning of materials are still the key factors affecting the quality and efficiency of laser cutting.

[0003] The laser cutting machines on the current market mostly use manual or simple mechanical clamps to fix the materials, but this method has certain limitations. First of all, manual fixation of materials not only has low efficiency, but also is easy to cause deviation of the position of the materials, resulting in a decrease in cutting precision. Secondly, although the traditional mechanical clamp can realize the fixation of the materials, its clamping force is not uniform enough, and the problem of material loosening or deviation in the cutting process is easy to occur, especially when dealing with thin, light or irregular shaped materials, the deviation phenomenon is more serious. More seriously, the waste treatment system of some laser cutting machines is not perfect, and the waste cannot be cleaned in time, which will have adverse effects on the cutting process, and even may cause damage to the equipment. SUMMARY

[0004] The present application provides a laser cutting machine with a cutting material anti-deviation function to solve the problem of low efficiency and deviation of the position of the materials caused by the existing manual or simple mechanical clamp fixation method.

[0005] The purpose of the present application is realized by the following technical scheme, a laser cutting machine with a cutting material anti-deviation function, comprising a laser cutting machine frame, a workbench for supporting materials is installed on the top of the laser cutting machine frame, characterized in that: strip-shaped through holes are formed on both sides of the workbench, a plurality of equidistant support racks are connected to the workbench, a laser generator capable of moving horizontally, vertically and longitudinally along the laser cutting machine frame is arranged on the top of the laser cutting machine frame, the laser generator moves through guide rails and a driving device, an automatic moving and positioning fixing material device is arranged in the two strip-shaped through holes, and a waste trolley is arranged at the bottom of the laser cutting machine frame.

[0006] Further, the automatic mobile positioning and fixing material device comprises two first racks, two first racks are installed in two strip-shaped through holes respectively, first linear guides are installed on both side walls in the workbench, two moving plates are installed on one side of the sliding block of the first linear guide, a first servo motor is installed on one side of the moving plate, a first gear is installed at the output end of the first servo motor, the first gear is connected with the first rack in meshing connection, a side plate and a second rack are connected between two opposite moving plates, a second linear guide is installed on one side of the side plate, two frame-shaped frames are installed on one side of the sliding block of the second linear guide, a second servo motor is installed on the inner side of the frame-shaped frame, a second gear is connected with the output end of the second servo motor, the second gear is connected with the second rack in meshing connection, a first air cylinder is installed in the frame-shaped frame, a C-shaped mounting block is connected with the output end of the first air cylinder and penetrates through the top of the frame-shaped frame, a second air cylinder is installed on the top of the C-shaped mounting block, and a pressing plate is connected with the output end of the second air cylinder and penetrates through the top of the C-shaped mounting block.

[0007] Further, the mobile laser generator comprises a laser emission head, and a protective cover is installed outside the laser emission head, wherein the protective cover is made of transparent high-temperature-resistant material.

[0008] Further, a rubber pad is arranged at the bottom of the pressing plate, and the surface of the rubber pad is provided with anti-skid lines for increasing friction with the material.

[0009] Further, the first servo motor and the second servo motor are both electrically connected with encoders.

[0010] Further, the material of the support rack is high-strength alloy steel, and the surface is subjected to quenching treatment.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] 1. In the present application, the material is accurately positioned and fixed automatically through the precise rack, servo motor and air cylinder system, which avoids the material deviation or inaccurate position in the traditional cutting machine, ensures the high precision of cutting, effectively improves the cutting quality and reduces the cutting defects and waste caused by material deviation.

[0013] 2. In the present application, the material is stably fixed by adopting multiple pressing plates for flexible clamping, and the adjustable pressing plate and rubber pad (with anti-skid lines) provide uniform pressure, which avoids the material loosening problem caused by single clamping point. This design ensures that the material remains fixed during the entire cutting process and reduces the damage to the material during clamping.

[0014] 3、The closed loop control system of the first and second servo motors and the encoder is adopted in the application, so that the accuracy of positioning and movement is ensured. The encoder feeds back the position in real time, so that the accurate operation of the pressing plate and other components in the whole process is ensured, the problems of positioning error and inconsistent power transmission are effectively prevented, and the operation accuracy and stability of the equipment are significantly improved.

[0015] 4、The automatic moving positioning and material fixing device is adopted in the application, so that high degree of automation is realized, manual intervention is reduced, and the overall work efficiency is improved. Under the accurate positioning and stable clamping of the material, the laser cutting process is more smooth, so that the cutting speed and work efficiency of the production line are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the application;

[0017] Figure 2 It is an enlarged schematic diagram of the structure of part A of the application;

[0018] Figure 3 It is a structural schematic diagram of the application;

[0019] Figure 4 It is an enlarged schematic diagram of the structure of part B of the application;

[0020] Figure 5 It is a structural schematic diagram of the application;

[0021] Figure 6 It is an enlarged schematic diagram of the structure of part C of the application.

[0022] In the figure: 1-laser cutting machine frame, 2-workbench, 201-strip-shaped through hole, 202-supporting rack, 3-laser generator, 4-automatic moving positioning and material fixing device, 401-first rack, 402-first linear guide rail, 403-moving plate, 404-first servo motor, 405-first gear, 406-side plate, 407-second rack, 408-second linear guide rail, 409-frame, 410-second servo motor, 411-second gear, 412-first air cylinder, 413-C-shaped mounting block, 414-second air cylinder, 415-pressing plate, 31-laser emitting head, 32-protection cover, 5-waste trolley. DETAILED DESCRIPTION

[0023] The technical solutions of the application will be further specifically described below through specific embodiments, but the application is not limited to these embodiments.

[0024] In combination with Figures 1 to 6The utility model discloses a laser cutting machine with cutting material deviation prevention function, including laser cutting machine frame 1, the workbench 2 for supporting material is installed on the top of laser cutting machine frame 1, it is characterized by: the both sides of workbench 2 are all set up strip through -hole 201, and a plurality of equidistance support rack 202 are inserted and connected in workbench 2, the top of laser cutting machine frame 1 is provided with the laser generator 3 that can move along the transverse longitudinal vertical of laser cutting machine frame 1, and the laser generator 3 realizes the movement through guide rail and drive arrangement, and the automatic moving positioning fixed material device 4 is set up in two strip through -hole 201, and the bottom of laser cutting machine frame 1 is provided with waste trolley 5.

[0025] In combination Figure 4 、 Figure 6As shown, the automatic moving positioning and fixing material device 4 comprises two first racks 401, which are respectively installed in the two strip-shaped through holes 201. The first linear guide rails 402 are installed on both side walls in the workbench 2. The sliders of the first linear guide rails 402 are provided with two moving plates 403. The moving plates 403 are provided with first servo motors 404 on one side. The first servo motors 404 are provided with first gears 405 at the output ends. The first gears 405 are in meshing connection with the first racks 401. The two opposite moving plates 403 are connected with a side plate 406 and a second rack 407. The side plate 406 is provided with a second linear guide rail 408 on one side. The slider of the second linear guide rail 408 is provided with two frame-shaped frames 409 on one side. The frame-shaped frames 409 are provided with second servo motors 410 on the inner sides. The second servo motors 410 are connected with second gears 411 at the output ends. The second gears 411 are in meshing connection with the second rack 407. The frame-shaped frames 409 are provided with first air cylinders 412. The output ends of the first air cylinders 412 penetrate through the top of the frame-shaped frames 409 and are connected with C-shaped mounting blocks 413. The C-shaped mounting blocks 413 are provided with second air cylinders 414 on the top. The output ends of the second air cylinders 414 penetrate through the top of the C-shaped mounting blocks 413 and are connected with pressing plates 415. The first servo motors 404 drive the first gears 405 to drive the moving plates 403 to move horizontally on the first linear guide rails 402 through the meshing transmission of the first gears 405 and the first racks 401, so that the side plate 406 and the second rack 407 reach the horizontal coordinates of the preset workstations. Then, the second servo motors 410 drive the second gears 411 to control the frame-shaped frames 409 to slide longitudinally on the second linear guide rails 408 through the longitudinal transmission of the second rack 407, so that the pressing plates 415 are finally positioned below the material fixing area. The C-shaped mounting blocks 413 are vertically lifted by the first air cylinders 412, so that the C-shaped mounting blocks 413 pass between the adjacent support racks 202. After the pressing plates 415 are lifted above the materials, the second servo motors 410 drive the second gears 411 again to control the frame-shaped frames 409 to slide longitudinally on the second linear guide rails 408 through the longitudinal transmission of the second rack 407, so that the C-shaped mounting blocks 413 are finely adjusted. After the edges of the materials are located in the C-shaped mounting blocks 413 and below the pressing plates 415, the second air cylinders 414 further apply vertical pressure to cooperate with the rubber pads with anti-skid patterns at the bottom of the pressing plates 415 to generate high friction. The four pressing plates 415 press the four corners of the materials respectively to realize multi-point flexible clamping, so that the pressing plates 415 can press the materials on materials of different sizes and complex shapes, and high flexibility and stability are provided.

[0026] In combination Figure 3 , Figure 5As shown, the mobile laser generator 3 comprises a laser emission head 31, and a protective cover 32 is externally mounted on the laser emission head 31, the protective cover 32 is made of transparent high-temperature-resistant material, the transparent high-temperature-resistant protective cover 32 effectively protects the laser emission head 31 from external material pollution and high-temperature damage, prolongs the service life of the laser equipment, and also ensures the safety of the operator.

[0027] The bottom of the pressing plate 415 is provided with a rubber pad, and the surface of the rubber pad has anti-skid lines for increasing the friction with the material, which can effectively increase the friction with the surface of the material, thereby improving the stability of the fixed material and preventing the material from sliding or shifting during the cutting process.

[0028] The first servo motor 404 and the second servo motor 410 are both electrically connected with encoders, which ensures the accurate control of the servo motors, can feedback the position and state in real time, reduces the error, improves the positioning accuracy, and provides strong support for the positioning of the automatic moving and positioning fixed material device 4.

[0029] The material of the support rack 202 is high-strength alloy steel, and the surface is subjected to quenching treatment, which improves the strength and wear resistance of the support rack 202, can withstand large load and high temperature environment, and is suitable for long-time high-load work.

[0030] Working principle: when the material to be cut is placed on the surface of the support rack 202 of the workbench 2, the automatic moving positioning and fixing device 4 starts to work. The first gear 405 is driven by the first servo motor 404, and through the meshing transmission of the first gear 405 and the first rack 401, the moving plate 403 is driven to move horizontally on the first linear guide rail 402, so that the side plate 406 and the second rack 407 reach the horizontal coordinate of the preset work station. Then, the second servo motor 410 drives the second gear 411, and the second rack 407 is longitudinally transmitted to control the longitudinal sliding of the frame 409 on the second linear guide rail 408, and finally the pressing plate 415 is positioned below the region where the material needs to be fixed. The C-shaped mounting block 413 is driven vertically upward by the first air cylinder 412, so that the C-shaped mounting block 413 passes between the adjacent support racks 202, and the pressing plate 415 is lifted above the material, so when the first air cylinder 412 drives the C-shaped mounting block 413 to reach the minimum stroke, the top of the second air cylinder 414 must be located below the bottom of the support rack 202, so as to ensure that the support rack 202 does not contact the bottom of the support rack 202 when moving. Again, the second servo motor 410 drives the second gear 411, and the second rack 407 is longitudinally transmitted to control the longitudinal sliding of the frame 409 on the second linear guide rail 408, and the C-shaped mounting block 413 is finely adjusted so that the edge of the material is located in the C-shaped mounting block 413 and below the pressing plate 415. After that, the second air cylinder 414 further applies vertical pressure, and the rubber pad with anti-skid pattern at the bottom of the pressing plate 415 generates high friction force, and the four pressing plates 415 press the four corners of the material respectively, realizing multi-point flexible clamping. Through the closed-loop control of the two groups of servo motors and encoders, the pressing plate group can move along the XY plane according to the program setting, and the clamping position is dynamically adjusted. In the stable and fixed state of the material, the laser generator 3 moves along the three-dimensional guide rail system in the X / Y / Z axis, and the laser beam is focused on the surface of the material to implement precise cutting. The design of the support rack 202 not only provides dispersed support force, but also allows the debris generated by cutting to fall through the gap between the teeth, and finally the waste trolley 5 at the bottom collects the debris.

[0031] The embodiments of the present application are not limited to the above-described examples, and those skilled in the art can make various changes and improvements in form and details without departing from the spirit and scope of the present application, and these are considered to fall within the protection scope of the present application.

Claims

1. A laser cutting machine with anti-deviation function for cutting materials, comprising a laser cutting machine frame (1), wherein a worktable (2) for supporting materials is mounted on the top of the laser cutting machine frame (1), characterized in that: The workbench (2) has strip-shaped through holes (201) on both sides. Several equidistant support racks (202) are inserted into the workbench (2). A laser generator (3) is provided on the top of the laser cutting machine frame (1) and can move horizontally, vertically and longitudinally along the laser cutting machine frame (1). The laser generator (3) moves through guide rails and drive devices. An automatic moving positioning and fixing material device (4) is provided in the two strip-shaped through holes (201). A waste trolley (5) is provided at the bottom of the laser cutting machine frame (1). The automatic moving positioning and fixing material device (4) includes two first racks (401), which are respectively installed in the two strip-shaped through holes (201). First linear guides (402) are installed on both inner side walls of the worktable (2). Two moving plates (403) are installed on one side of the slider of the first linear guide (402). A first servo motor (404) is installed on one side of the moving plate (403). A first gear (405) is installed at the output end of the first servo motor (404). The first gear (405) meshes with the first rack (401). A side plate (406) and a second rack (407) are connected between the two opposing moving plates (403). A first gear (407) is installed on one side of the side plate (406). Two linear guides (408) are provided. Two frame frames (409) are installed on one side of the slider of the second linear guide (408). A second servo motor (410) is installed inside the frame frame (409). A second gear (411) is connected to the output end of the second servo motor (410). The second gear (411) meshes with the second rack (407). A first cylinder (412) is installed inside the frame frame (409). The output end of the first cylinder (412) passes through the top of the frame frame (409) and is connected to a C-shaped mounting block (413). A second cylinder (414) is installed on the top of the C-shaped mounting block (413). The output end of the second cylinder (414) passes through the top of the C-shaped mounting block (413) and is connected to a pressure plate (415).

2. A laser cutting machine with anti-deviation function for cutting materials according to claim 1, characterized in that: The mobile laser generator (3) includes a laser emitting head (31), and a protective cover (32) is installed on the outside of the laser emitting head (31). The protective cover (32) is made of transparent high-temperature resistant material.

3. A laser cutting machine with anti-deviation function for cutting materials according to claim 2, characterized in that: The bottom of the pressure plate (415) is provided with a rubber pad, and the surface of the rubber pad has anti-slip textures to increase friction with the material.

4. A laser cutting machine with anti-deviation function for cutting materials according to claim 3, characterized in that: Both the first servo motor (404) and the second servo motor (410) are electrically connected to encoders.

5. A laser cutting machine with anti-deviation function for cutting materials according to claim 4, characterized in that: The support rack (202) is made of high-strength alloy steel and its surface has been hardened.

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