Three-dimensional six-axis laser cutting machine
By using a probe that contacts the surface of the sheet material in a three-dimensional six-axis laser cutting machine, and maintaining a constant distance between the convex lens and the sheet material, the problem of high sensor cost in existing technologies is solved, achieving high-precision laser cutting and dust removal, and reducing equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
Existing 3D six-axis laser cutting machines are costly and impractical when cutting materials with uneven surfaces due to the need for sensors and control systems.
The probe contacts the surface of the material, maintaining close contact through an elastic connection. By using a convex lens to keep the distance between the probe and the material constant, accurate positioning of the laser focus is achieved, eliminating the need for a distance sensor. A vacuum pump is also used to remove cutting dust.
It reduces equipment costs, improves the precision and practicality of laser cutting, and adapts to the cutting needs of plates of different thicknesses.
Smart Images
Figure CN224115425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser cutting technology, specifically a three-dimensional six-axis laser cutting machine. Background Technology
[0002] Laser cutting is a common method for cutting sheet metal workpieces. Typically, a convex lens is placed in front of the light source to focus the parallel laser beam onto a single point for cutting.
[0003] Existing 3D six-axis laser cutting machines typically use a distance sensor to measure the distance between the laser emitter and the workpiece surface, and then use a translation mechanism to move the convex lens. This series of structures is costly and impractical for cutting sheet metal with flat surfaces, requiring sophisticated sensors and control systems. Therefore, designing a more practical 3D six-axis laser cutting machine is essential. Utility Model Content
[0004] The purpose of this invention is to provide a three-dimensional six-axis laser cutting machine to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a three-dimensional six-axis laser cutting machine, including a machine body, a front-to-back translation joint movably disposed on the top of the machine body, a left-to-right translation joint movably disposed on the top of the front-to-back translation joint, an up-down translation joint movably disposed on one side of the left-to-right translation joint, a laser emitter fixedly mounted on one side of the up-down translation joint, and a focusing device disposed at the bottom of the laser emitter. When the plate is placed on the processing surface, the laser emitter is moved downward to a suitable position by means of the up-down translation joint. At this time, the probe contacts the upper surface of the plate. The laser emitted by the laser emitter will be focused by a convex lens and form a high-temperature focal point on the plate to perform laser cutting.
[0006] According to the above technical solution, the focusing device includes a convex lens, mounting seats are provided on both sides of the vertical translation joint, connecting rods are slidably installed on the inner walls of both sides of the mounting seats, and a lens fixing shell is fixedly installed between the two connecting rods. The convex lens is embedded in the inner wall of the lens fixing shell, and a probe is correspondingly installed at the bottom of the lens fixing shell. When the plate is placed on the processing surface, the laser emitter is moved downward to a suitable position by using the vertical translation joint. At this time, the probe contacts the upper surface of the plate. The laser emitted by the laser emitter will be focused by the convex lens and form a high-temperature focal point on the plate to perform laser cutting.
[0007] According to the above technical solution, fixing blocks are installed on the inner walls of both sides of the mounting base, and springs are connected to the bottom of the fixing blocks. The bottom end of the springs is connected to the top of the connecting rod.
[0008] According to the above technical solution, an electromagnet is installed on one side of the fixing block, and a permanent magnet is provided on the top of the connecting rod. The electromagnet and the permanent magnet attract each other magnetically, and the electromagnet is electrically connected to an external power source.
[0009] According to the above technical solution, a guide tube is installed at the bottom of the connecting rod, a dust suction hood is connected to the bottom of the guide tube, a filter is connected to one end of the guide tube, a negative pressure suction tube is connected to one end of the filter, and a vacuum pump is connected to one end of the negative pressure suction tube.
[0010] According to the above technical solution, the focal length of the convex lens is equal to the length of the probe, and the top of the probe and the optical center of the convex lens are in the same horizontal plane. The distance of the focal point is exactly equal to the length of the probe, so that the convex lens 65 focuses exactly on the processing surface above the plate each time.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model uses a probe to contact the surface of the plate. Since the probe translation mechanism is pre-set with elasticity, it will always maintain close contact with the surface of the plate. The distance between the convex lens and the plate is constant, so that the focus of the laser is always aligned with the surface of the plate of different thicknesses. There is no need to use a distance sensor to specifically measure the distance between the surface of the plate and the laser emitter, thus saving equipment costs. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the focusing device structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the laser focusing principle of this utility model;
[0016] Figure 4 This is a schematic diagram of the installation of the dust cover of this utility model;
[0017] In the diagram: 1. Body; 2. Front-to-back translation joint; 3. Left-to-right translation joint; 4. Up-to-down translation joint; 41. Mounting base; 5. Laser emitter; 6. Focusing device; 61. Fixing block; 62. Spring; 63. Permanent magnet; 64. Probe; 65. Convex lens; 66. Lens fixing shell; 67. Electromagnet; 68. Connecting rod; 71. Conductor tube; 72. Dust hood; 73. Filter; 74. Negative pressure suction tube; 75. Vacuum pump. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 The present invention provides a technical solution: a three-dimensional six-axis laser cutting machine, including a machine body 1, a front-to-back translation joint 2 movably arranged on the top of the machine body 1, a left-to-right translation joint 3 movably arranged on the top of the front-to-back translation joint 2, an up-down translation joint 4 movably arranged on one side of the left-to-right translation joint 3, a laser emitter 5 fixedly installed on one side of the up-down translation joint 4, and a focusing device 6 arranged at the bottom of the laser emitter 5. The laser emitter 5 is focused by moving up, down, left, right, front, and back through the translation joints.
[0020] The focusing device 6 includes a convex lens 65. Mounting seats 41 are provided on both sides of the vertical translation pair 4. Connecting rods 68 are slidably installed on the inner walls of both sides of the mounting seats 41. A lens fixing shell 66 is fixedly installed between the two connecting rods 68. The convex lens 65 is embedded in the inner wall of the lens fixing shell 66. A probe 64 is installed at the bottom of the lens fixing shell 66. When the plate is placed on the processing surface, the laser emitter 5 is moved downward to a suitable position by using the vertical translation pair 4. At this time, the probe 64 contacts the upper surface of the plate. The laser emitted by the laser emitter 5 will be focused by the convex lens 65 and form a high-temperature focal point on the plate to perform laser cutting.
[0021] Fixing blocks 61 are installed on the inner walls of both sides of the mounting base 41. A spring 62 is connected to the bottom of the fixing block 61. The bottom end of the spring 62 is connected to the top of the connecting rod 68. Due to the presence of the spring 62, the probe 64 always has a downward pressure, which can make close contact with the plate and improve the focusing accuracy.
[0022] An electromagnet 67 is installed on one side of the fixing block 61, and a permanent magnet 63 is set on the top of the connecting rod 68. The electromagnet 67 and the permanent magnet 63 attract each other with magnetic force. The electromagnet 67 is electrically connected to an external power source. Before processing, the electromagnet 67 is energized. At this time, the electromagnet 67 and the permanent magnet 63 attract each other with magnetic force, which moves the lens fixing shell 66 upward. After the plate is placed, the electromagnet 67 is de-energized. At this time, the spring 62 returns to its original state, which makes the fixing shell 6 move downward, so that the probe 64 can be retracted when the plate is placed, and the probe and plate will not be damaged.
[0023] A guide tube 71 is installed at the bottom of the connecting rod 68. A dust suction hood 72 is connected to the bottom of the guide tube 71. A filter 73 is connected to one end of the guide tube 71. A negative pressure suction tube 74 is connected to one end of the filter 73. A vacuum pump 75 is connected to one end of the negative pressure suction tube 74. Since the dust generated by laser cutting may disperse onto the convex lens 65, by starting the vacuum pump 75, the vacuum pump 75 transmits negative pressure to the guide tube 71 through the negative pressure suction tube 74. Since the dust suction hood 72 is aligned with the laser focusing position, the dust generated by laser cutting can be sucked up to prevent the dust from dispersing. The dust is filtered and collected by the filter 73.
[0024] The focal length of the convex lens 65 is equal to the length of the probe 64, and the top of the probe 64 and the optical center of the convex lens 65 are in the same horizontal plane. The distance of the focal point is exactly equal to the length of the probe 64, so that the convex lens 65 can focus exactly on the processing surface above the plate each time.
[0025] By using a probe to contact the surface of the board, the probe translation mechanism is pre-set with elasticity, which will always maintain close contact with the surface of the board. The distance between the convex lens and the board is constant, so that the focus of the laser is always aligned with the surface of the board with different thicknesses. There is no need to use a distance sensor to specifically measure the distance between the board surface and the laser emitter, thus saving equipment costs.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A three-dimensional six-axis laser cutting machine, comprising a machine body (1), characterized in that: The top of the fuselage (1) is movably provided with a front-to-back translation joint (2), the top of the front-to-back translation joint (2) is movably provided with a left-to-right translation joint (3), one side of the left-to-right translation joint (3) is movably provided with a vertical translation joint (4), one side of the vertical translation joint (4) is fixedly installed with a laser emitter (5), and the bottom of the laser emitter (5) is provided with a focusing device (6).
2. The three-dimensional six-axis laser cutting machine according to claim 1, characterized in that: The focusing device (6) includes a convex lens (65), and mounting seats (41) are provided on both sides of the vertical translation pair (4). Connecting rods (68) are slidably installed on the inner walls of both sides of the mounting seats (41). A lens fixing shell (66) is fixedly installed between the two connecting rods (68). The convex lens (65) is embedded in the inner wall of the lens fixing shell (66), and a probe (64) is installed at the bottom of the lens fixing shell (66).
3. A three-dimensional six-axis laser cutting machine according to claim 2, characterized in that: Fixing blocks (61) are installed on the inner walls of both sides of the mounting base (41). A spring (62) is connected to the bottom of the fixing block (61), and the bottom end of the spring (62) is connected to the top of the connecting rod (68).
4. A three-dimensional six-axis laser cutting machine according to claim 3, characterized in that: An electromagnet (67) is installed on one side of the fixing block (61), and a permanent magnet (63) is provided on the top of the connecting rod (68). The electromagnet (67) and the permanent magnet (63) are attracted to each other by magnetic force, and the electromagnet (67) is electrically connected to an external power source.
5. A three-dimensional six-axis laser cutting machine according to claim 4, characterized in that: A guide tube (71) is installed at the bottom of the connecting rod (68), a dust suction hood (72) is connected to the bottom of the guide tube (71), a filter (73) is connected to one end of the guide tube (71), a negative pressure suction tube (74) is connected to one end of the filter (73), and a vacuum pump (75) is connected to one end of the negative pressure suction tube (74).
6. A three-dimensional six-axis laser cutting machine according to claim 5, characterized in that: The focal length of the convex lens (65) is equal to the length of the probe (64), and the top of the probe (64) and the optical center of the convex lens (65) are in the same horizontal plane.