Eight-axis linkage laser cutting equipment

Abstract

The utility model is suitable for the technical field of laser cutting, and provides eight-axis linkage laser cutting equipment which comprises an X-axis driving assembly, a Y-axis driving assembly, a B-axis driving assembly and a C-axis driving assembly which drive an objective table to move, a three-dimensional laser assembly arranged above the objective table and a Z-axis driving assembly which drives the three-dimensional laser assembly to move towards the objective table. The three-dimensional laser assembly comprises a laser, a light path assembly, a three-dimensional galvanometer and a detection assembly, a laser beam of the laser is emitted to the three-dimensional galvanometer through the light path assembly and is cut by light emitted by the three-dimensional galvanometer, and the detection assembly is used for detecting position information of a product placed on the objective table; product position coordinates are transmitted to a rear-end control system through program interaction for position compensation of a product and a three-dimensional galvanometer, specifically, the product is aligned to the three-dimensional galvanometer by driving an X-axis driving assembly, a Y-axis driving assembly, a B-axis driving assembly and a C-axis driving assembly, the light emitting distance of the three-dimensional galvanometer is adjusted through a Z-axis driving assembly, and the laser machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cutting, and specifically relates to eight-axis linkage laser cutting equipment. Background Art

[0002] At present, the most widely used solution for processing and manufacturing special material products in the market is to use multi-axis linkage control to make the laser cutting head move along the processing contour to cut the corresponding product appearance. The laser cutting process on the market can only perform rough processing on materials, and for some special materials with obvious thermal effects, the current common laser cutting processing methods on the market cannot meet the process requirements of the products. The machine movement speed cannot reach the speed required for laser cutting, resulting in serious thermal deformation of the material. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an eight-axis laser cutting device capable of performing fine processing on products.

[0004] The utility model is implemented as follows: an eight-axis linkage laser cutting device, comprising a machine platform, an X-axis driving component arranged on the machine platform, a Y-axis driving component arranged on the X-axis driving component, a B-axis driving component arranged on the Y-axis driving component, a C-axis driving component connected to the output shaft of the B-axis driving component, a stage connected to the output shaft of the C-axis driving component, a three-dimensional laser component arranged above the stage, and a Z-axis driving component for driving the three-dimensional laser component to move toward the stage;

[0005] The three-dimensional laser component includes a laser, an optical path component, a three-dimensional galvanometer and a detection component. The three-dimensional galvanometer and the detection component are connected to the Z-axis drive component. The laser beam of the laser is emitted to the three-dimensional galvanometer through the optical path component, and the three-dimensional galvanometer performs light cutting. The detection component is used to detect the position information of the product placed on the stage, and transmit the product position coordinates to the back-end control system through program interaction to compensate the position of the product and the three-dimensional galvanometer.

[0006] Furthermore, the optical path component includes a beam expander and at least four reflectors, the laser beam emitted by the laser passes horizontally through the beam expander, and the laser beam passing through the beam expander is transmitted to the three-dimensional galvanometer through the four reflectors.

[0007] Furthermore, the four reflectors are respectively a first reflector, a second reflector, a third reflector and a fourth reflector, the first reflector is arranged at a 45° angle to the beam expander, the second reflector is arranged at a 90° angle to the first reflector, the third reflector is arranged at a 45° angle to the second reflector, the fourth reflector is arranged parallel to the third reflector along the Z-axis direction, and the fourth reflector is arranged at a 45° angle to the three-dimensional galvanometer.

[0008] Furthermore, the detection component is a CCD detection camera.

[0009] Furthermore, the X-axis drive assembly includes a plurality of X-axis slide rails, an X-axis stator is arranged between the plurality of X-axis slide rails, an X-axis mover plate electrically connected to the X-axis stator is slidably connected to the X-axis slide rail, and the Y-axis drive assembly is arranged on the X-axis mover plate.

[0010] Furthermore, the Y-axis driving assembly includes a base plate arranged on the X-axis mover plate, a plurality of Y-axis slide rails are arranged on the base plate, a Y-axis stator is arranged between the plurality of Y-axis slide rails, a Y-axis mover plate electrically connected to the Y-axis stator is slidably connected to the Y-axis slide rail, and the B-axis driving assembly is arranged on the Y-axis mover plate.

[0011] Furthermore, the B-axis driving assembly includes a first motor that rotates with the Y-axis as a rotation axis, and the C-axis driving assembly is connected to the output shaft of the first motor via a connecting member.

[0012] Furthermore, the C-axis driving assembly includes a second motor that rotates with the Z-axis as a rotation axis, and the loading platform is arranged on the output shaft of the second motor.

[0013] Furthermore, the connecting member includes a vertical plate arranged on the Y-axis mover plate, the vertical plate is provided with a bearing, the inner ring of the bearing is connected to a rotating plate, the rotating plate is connected to the output shaft of the first motor, and the second motor is arranged on the rotating plate.

[0014] Furthermore, the Z-axis driving assembly includes a vertically arranged third motor, the three-dimensional galvanometer is arranged on an output shaft of the third motor, and the detection assembly is connected to the three-dimensional galvanometer.

[0015] The utility model provides an eight-axis linkage laser cutting device. When performing laser cutting processing, the laser emits a laser beam and transmits it to the three-dimensional galvanometer through an optical path component for light emission, and scans the contour of the product on the stage for processing, wherein the detection component detects the position status of the product, and transmits the product position coordinates to the back-end control system through program interaction. The back-end control system drives the X-axis drive component, the Y-axis drive component, the B-axis drive component and the C-axis drive component according to the position information of the product to adjust the position of the stage so that the product is aligned with the three-dimensional galvanometer to ensure the consistency of the product processing position, and also drives the Z-axis drive component to adjust the position of the three-dimensional galvanometer to adjust the light emission distance, thereby improving the processing accuracy of the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0018] Figure 1 It is a structural schematic diagram provided by the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the cooperation of the X-axis drive assembly, the Y-axis drive assembly, the B-axis drive assembly and the C-axis drive assembly in the utility model.

[0020] Figure 3 It is a structural schematic diagram of a three-dimensional laser component and a Z-axis drive component in the utility model.

[0021] Explanation of the accompanying drawings: 1. Machine table; 2. X-axis drive assembly; 21. X-axis slide rail; 22. X-axis stator; 23. X-axis mover plate; 3. Y-axis drive assembly; 31. Base plate; 32. Y-axis slide rail; 33. Y-axis stator; 34. Y-axis mover plate; 4. B-axis drive assembly; 41. First motor; 42. Vertical plate; 43. Bearing; 44. Turntable; 5. C-axis drive assembly; 51. Second motor; 6. Stage; 7. Three-dimensional laser assembly; 71. Laser; 72. Optical path assembly; 721. Beam expander; 722. First reflector; 723. Second reflector; 724. Third reflector; 725. Fourth reflector; 73. Three-dimensional galvanometer; 74. Detection assembly; 8. Z-axis drive assembly; 81. Third motor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] See also Figure 1-Figure 3 , is an eight-axis linkage laser cutting device disclosed in the utility model, comprising a machine 1, an X-axis drive assembly 2 arranged on the machine 1, a Y-axis drive assembly 3 arranged on the X-axis drive assembly 2, a B-axis drive assembly 4 arranged on the Y-axis drive assembly 3, a C-axis drive assembly 5 connected to the output shaft of the B-axis drive assembly 4, a stage 6 connected to the output shaft of the C-axis drive assembly 5, a three-dimensional laser assembly 7 arranged above the stage 6, and a Z-axis drive assembly 8 for driving the three-dimensional laser assembly 7 to move toward the stage 6. That is, the position of the product is adjusted by the X-axis drive assembly 2, the Y-axis drive assembly 3, the B-axis drive assembly 4 and the C-axis drive assembly 5, so that the product is aligned with the corresponding position of the three-dimensional laser assembly 7, and the Z-axis drive assembly 8 is used to adjust the vertical distance between the three-dimensional laser assembly 7 and the product. It can be seen that the center of gravity of the entire machine 1 is low, which further improves the motion stability of the product.

[0024] Specifically, the three-dimensional laser assembly 7 includes a laser 71, an optical path assembly 72, a three-dimensional galvanometer 73 and a detection assembly 74. Figure 3As shown, the machine 1 is preferably provided with a gantry, the laser 71, the optical path component 72 and the Z-axis drive component 8 are all fixed on the gantry, the three-dimensional galvanometer 73 and the detection component 74 are connected to the Z-axis drive component 8, the laser beam of the laser 71 is emitted to the three-dimensional galvanometer 73 through the optical path component 72, and the three-dimensional galvanometer 73 performs light cutting. Further, the optical path component 72 includes a beam expander 721 and at least four reflectors, the laser beam emitted by the laser 71 passes through the beam expander 721 horizontally, and the laser beam passing through the beam expander 721 is transmitted to the three-dimensional galvanometer 73 through the four reflectors, and the transmission direction of the laser beam is changed by the four reflectors, which can make the structure of the entire machine 1 more compact on the one hand, and on the other hand, can well adapt to the cutting requirements of the three-dimensional galvanometer 73 emitting light vertically. Specifically, the four reflectors are respectively a first reflector 722, a second reflector 723, a third reflector 724 and a fourth reflector 725. The first reflector 722 is arranged at a 45° angle to the beam expander 721, the second reflector 723 is arranged at a 90° angle to the first reflector 722, the third reflector 724 is arranged at a 45° angle to the second reflector 723, the fourth reflector 725 is arranged parallel to the third reflector 724 along the Z-axis direction, and the fourth reflector 725 is arranged at a 45° angle to the three-dimensional galvanometer 73. When performing laser cutting, the laser beam is first emitted by the laser 71, and the laser beam is amplified by the beam expander 721. The laser beam is refracted 90° by the first reflector 722, and then refracted a second time by 90° by the second reflector 723. At this time, this section of the laser beam is parallel to a section of the laser beam directly emitted from the laser 71. The laser beam is then refracted 90° by the third reflector 724 so that the laser beam changes from a horizontal state to a vertical state along the Z-axis direction. Finally, the laser beam is refracted 90° by the fourth reflector 725 so that the laser beam is transmitted to the three-dimensional galvanometer 73, and the three-dimensional galvanometer 73 scans the product contour to smoothly perform laser cutting.

[0025] At the same time, the detection component 74 is used to detect the position information of the product placed on the stage 6. The detection component 74 is preferably a CCD detection camera, which transmits the product position coordinates to the back-end control system through program interaction to perform position compensation of the product and the three-dimensional galvanometer 73. In the process of position compensation, after the three-dimensional galvanometer 73 scans the product contour, the three-dimensional information of the product is imported into the system internal software of the back-end system, and then the contour features and contour shapes to be processed are selected according to the three-dimensional information of the final product, and the processing paths to be cut are generated after simulation processing by the back-end system software, and these segmented paths are saved.

[0026] According to the processing path, the back-end system drives the X-axis drive assembly 2, the Y-axis drive assembly 3, the B-axis drive assembly 4 and the C-axis drive assembly 5 to adjust the position of the stage 6, that is, adjust the position of the product so that the product can be aligned with the processing position of the three-dimensional galvanometer 73. Specifically, Figure 2 As shown, the X-axis driving assembly 2 includes a plurality of X-axis slide rails 21, an X-axis stator 22 is provided between the plurality of X-axis slide rails 21, an X-axis movable plate 23 electrically connected to the X-axis stator 22 is slidably connected to the X-axis slide rail 21, and the Y-axis driving assembly 3 is provided on the X-axis movable plate 23. After the X-axis stator 22 and the X-axis movable plate 23 are energized, the X-axis movable plate 23 can move along the direction of the X-axis slide rail 21, so that the Y-axis driving assembly 3 can move along the direction of the X-axis, that is, the B-axis driving assembly 4, the C-axis driving assembly 5 and the carrier plate move with the movement of the Y-axis driving assembly 3. The Y-axis driving assembly 3 includes a bottom plate 31 disposed on the X-axis moving plate 23, a plurality of Y-axis slide rails 32 are disposed on the bottom plate 31, a Y-axis stator 33 is disposed between the plurality of Y-axis slide rails 32, a Y-axis moving plate 34 electrically connected to the Y-axis stator 33 is slidably connected to the Y-axis slide rail 32, and the B-axis driving assembly 4 is disposed on the Y-axis moving plate 34. Similarly, after the Y-axis stator 33 and the Y-axis moving plate 34 are powered on, the Y-axis moving plate 34 can move along the direction of the Y-axis slide rail 32, that is, the B-axis driving assembly 4 can move along the direction of the Y-axis, and the C-axis driving assembly 5 and the carrier plate move with the movement of the B-axis driving assembly 4. Through the cooperation of the X-axis driving assembly 2 and the Y-axis driving assembly 3, the carrier plate is driven to drive the product to translate on the X-axis and Y-axis.

[0027] The B-axis driving assembly 4 includes a first motor 41 that rotates with the Y-axis as the rotation axis, the C-axis driving assembly 5 is connected to the output shaft of the first motor 41 through a connecting member, the C-axis driving assembly 5 includes a second motor 51 that rotates with the Z-axis as the rotation axis, and the stage 6 is arranged on the output shaft of the second motor 51. In order to maintain the rotation stability of the stage 6, the connecting member includes a vertical plate 42 arranged on the Y-axis mover plate 34, the first motor 41 is fixed on the vertical plate 42, the vertical plate 42 is provided with a bearing 43, the inner ring of the bearing 43 is connected to a rotating plate 44, the rotating plate 44 is connected to the output shaft of the first motor 41, and the second motor 51 is arranged on the rotating plate 44. The first motor 41 starts to drive the rotating plate 44 to rotate with the Y axis as the rotation axis. At this time, the second motor 51 rotates with the rotation of the rotating plate 44 to drive the carrier plate to drive the product to rotate on the B axis, that is, to rotate with the Y axis as the rotation axis, and the second motor 51 drives the carrier plate to directly drive the product to rotate on the C axis, that is, to rotate with the Z axis as the rotation axis. Through the cooperation of the B-axis drive component 4 and the C-axis drive component 5, the carrier plate is driven to drive the product to rotate on the B axis and the C axis. The product can adapt to the processing path and adjust to different postures and positions. At this time, the detection component 74 transmits the position information of the product to the back-end system in real time. Once the product is in place, the three-dimensional galvanometer 73 is driven to directly emit light to cut out the overall product shape. When a section of the processing route is completed, the back-end system drives the X-axis drive component 2, the Y-axis drive component 3, the B-axis drive component 4 and the C-axis drive component 5 again to adjust the product to the next processing posture position, and this cycle is repeated until the entire cutting operation is completed.

[0028] Furthermore, the Z-axis driving component 8 includes a vertically arranged third motor 81, the three-dimensional galvanometer 73 is arranged on the output shaft of the third motor 81, and the detection component 74 is connected to the three-dimensional galvanometer 73. The Z-axis driving component 8 directly drives the movement of the three-dimensional galvanometer to adjust the distance between the three-dimensional galvanometer 73 and the product, that is, adjusts the light emitting distance of the three-dimensional galvanometer 73, which can be compatible with products of different sizes and improve the processing accuracy of the laser.

[0029] In summary, the product can be adjusted in four axial directions, namely, X-axis, Y-axis, B-axis and C-axis, under the action of the stage 6. Combined with the movement of the three-dimensional galvanometer 73 in the Z-axis and its own ability to scan the product to obtain three-dimensional information of the product, the entire laser cutting equipment can achieve eight-axial adjustments, making the position compensation between the product and the three-dimensional galvanometer 73 more accurate, and achieving ultra-fast finishing of complex contours.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An eight-axis linkage laser cutting device, characterized in that: The machine comprises a platform (1), an X-axis driving component (2) arranged on the platform (1), a Y-axis driving component (3) arranged on the X-axis driving component (2), a B-axis driving component (4) arranged on the Y-axis driving component (3), a C-axis driving component (5) connected to the output shaft of the B-axis driving component (4), a stage (6) connected to the output shaft of the C-axis driving component (5), a three-dimensional laser component (7) arranged above the stage (6), and a Z-axis driving component (8) used for driving the three-dimensional laser component (7) to move toward the stage (6); The three-dimensional laser component (7) comprises a laser (71), an optical path component (72), a three-dimensional galvanometer (73) and a detection component (74); the three-dimensional galvanometer (73) and the detection component (74) are connected to the Z-axis drive component (8); the laser beam of the laser (71) is emitted to the three-dimensional galvanometer (73) through the optical path component (72); the three-dimensional galvanometer (73) performs light cutting; the detection component (74) is used to detect the position information of the product placed on the stage (6); and the product position coordinates are transmitted to the back-end control system through program interaction to perform position compensation of the product and the three-dimensional galvanometer (73).

2. The eight-axis linkage laser cutting equipment according to claim 1, characterized in that: The optical path component (72) comprises a beam expander (721) and at least four reflectors, the laser beam emitted by the laser (71) passes horizontally through the beam expander (721), and the laser beam passing through the beam expander (721) is transmitted to the three-dimensional galvanometer (73) through the four reflectors.

3. The eight-axis linkage laser cutting equipment according to claim 2, characterized in that: The four reflectors are respectively a first reflector (722), a second reflector (723), a third reflector (724) and a fourth reflector (725); the first reflector (722) is arranged at an angle of 45° to the beam expander (721); the second reflector (723) is arranged at an angle of 90° to the first reflector (722); the third reflector (724) is arranged at an angle of 45° to the second reflector (723); the fourth reflector (725) is arranged parallel to the third reflector (724) along the Z-axis direction; and the fourth reflector (725) is arranged at an angle of 45° to the three-dimensional galvanometer (73).

4. The eight-axis linkage laser cutting equipment according to claim 1, characterized in that: The detection component (74) is a CCD detection camera.

5. The eight-axis linkage laser cutting equipment according to claim 1, characterized in that: The X-axis driving assembly (2) comprises a plurality of X-axis slide rails (21), an X-axis stator (22) is arranged between the plurality of X-axis slide rails (21), an X-axis mover plate (23) electrically connected to the X-axis stator (22) is slidably connected to the X-axis slide rails (21), and the Y-axis driving assembly (3) is arranged on the X-axis mover plate (23).

6. The eight-axis linkage laser cutting equipment according to claim 5, characterized in that: The Y-axis driving assembly (3) comprises a base plate (31) arranged on the X-axis moving plate (23); a plurality of Y-axis slide rails (32) are arranged on the base plate (31); a Y-axis stator (33) is arranged between the plurality of Y-axis slide rails (32); a Y-axis moving plate (34) electrically connected to the Y-axis stator (33) is slidably connected to the Y-axis slide rail (32); and the B-axis driving assembly (4) is arranged on the Y-axis moving plate (34).

7. The eight-axis linkage laser cutting equipment according to claim 6, characterized in that: The B-axis driving assembly (4) comprises a first motor (41) that rotates with the Y-axis as a rotation axis, and the C-axis driving assembly (5) is connected to the output shaft of the first motor (41) via a connecting piece.

8. The eight-axis linkage laser cutting equipment according to claim 7, characterized in that: The C-axis driving assembly (5) comprises a second motor (51) which rotates with the Z-axis as a rotation axis, and the object carrier (6) is arranged on the output shaft of the second motor (51).

9. The eight-axis linkage laser cutting equipment according to claim 8, characterized in that: The connecting member comprises a vertical plate (42) arranged on the Y-axis mover plate (34), a bearing (43) being arranged on the vertical plate (42), an inner ring of the bearing (43) being connected to a rotating plate (44), the rotating plate (44) being connected to an output shaft of the first motor (41), and the second motor (51) being arranged on the rotating plate (44).

10. The eight-axis linkage laser cutting equipment according to claim 1, characterized in that: The Z-axis driving component (8) comprises a third motor (81) arranged vertically, the three-dimensional galvanometer (73) is arranged on an output shaft of the third motor (81), and the detection component (74) is connected to the three-dimensional galvanometer (73).

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