Five-axis laser cutting equipment

Abstract

The utility model discloses five-axis laser cutting equipment which comprises a machine tool provided with a multi-axis moving assembly, and is characterized in that a cutting head rotating assembly is arranged at the moving end of the multi-axis moving assembly; the output end of the cutting head rotating assembly is detachably connected with a linear module and can drive the linear module to rotate with the axis of the cutting head rotating assembly as a rotating shaft, and the support of the cutting head rotating assembly is further rotationally matched with the linear module through a connecting support. According to the cutting head, the separable connecting support is arranged between the cutting head rotating assembly and the linear module, axial supporting can be achieved after the first connecting part and the second connecting part are connected and fixed, and therefore the situation that the cutting head shakes due to the fact that the speed is too high during actual production is prevented; and convenience is provided for subsequent replacement of different cutting heads.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting equipment, and more specifically to a five-axis laser cutting equipment. Background Art

[0002] Laser cutting is a high-precision, high-efficiency processing technology that utilizes a high-power density laser beam to illuminate the material being cut, rapidly heating it to its vaporization temperature and evaporating it to form holes. As the beam moves across the material, the holes form a continuous, narrow slit, completing the cut. Laser cutting is used in the manufacturing of automobiles, aircraft, ships, and buildings.

[0003] When the laser cutting head is used in actual production, the speed is too fast, which will cause the cutting head to vibrate, resulting in jagged edges and deviations in the cutting position. This will result in batches of unqualified and scrapped products. Utility Model Content

[0004] The technical problem to be solved by the present invention is how to avoid the shaking of the cutting head caused by the excessively fast speed during actual production and to facilitate the replacement of the cutting head.

[0005] The utility model solves the above-mentioned technical problems through the following technical means: a five-axis laser cutting device, including a machine tool, which is provided with a multi-axis moving component, characterized in that the moving end of the multi-axis moving component is provided with a cutting head rotating component, the output end of the cutting head rotating component is detachably connected to a linear module and can drive the linear module to rotate with the axis of the cutting head rotating component as the rotating shaft, the bracket of the cutting head rotating component is also rotatably matched with the linear module through a connecting bracket, the moving end of the linear module is connected to the cutting head, and the connecting bracket includes a detachably connected connecting part one and a connecting part two, the connecting part one is fixedly connected to the linear module, and the connecting part two is rotatably matched with the bracket of the cutting head rotating component.

[0006] By setting a detachable connecting bracket between the cutting head rotating assembly and the linear module, it can provide axial support after the connection part one and the connection part two are connected and fixed, thereby preventing the cutting head from shaking due to excessive speed during actual production. At the same time, the detachable connection between the connection part one and the connection part two provides convenience for the subsequent replacement of different cutting heads.

[0007] As a preferred technical solution, the connection part one and the connection part two are fixedly connected by at least one door-clip type elbow clamp, and the door-clip type elbow clamp includes a handle part and a base part, the handle part is fixedly connected to the connection part one, and the base part is fixedly connected to the connection part two.

[0008] As a preferred technical solution, the machine tool is fixedly connected to a tooling rotary motor via a motor fixing bracket, and an output end of the tooling rotary motor is connected to a contouring tooling.

[0009] As a preferred technical solution, the output end of the profiling tooling is detachably connected to the output end of the tooling rotating motor via a coupling.

[0010] As a preferred technical solution, the contouring tooling includes a three-jaw chuck or a locking pneumatic cylinder.

[0011] As a preferred technical solution, a thumb cylinder is fixed on the motor fixing bracket, and a counterweight is connected between the two moving ends of the thumb cylinder.

[0012] As an optimal technical solution, the multi-axis moving assembly includes an X-axis linear module, a Y-axis linear module, and a Z-axis linear module. The top of the machine tool is fixedly connected to a portal frame, the portal frame is fixedly connected to the X-axis linear module, the moving end of the X-axis linear module is fixedly connected to the Z-axis linear module, the machine tool is fixedly connected to the Y-axis linear module, the moving end of the Y-axis linear module is fixedly connected to a working platform, and is fixedly connected to the motor fixing bracket through the working platform.

[0013] As a preferred technical solution, the multi-axis moving assembly also includes a Y-axis linear module, and the connecting part is fixedly connected to two relatively arranged limit blocks. The two limit blocks are provided with through holes that are compatible with the output end of the cutting head rotating assembly. The connecting part is fastened to the output end of the cutting head rotating assembly through a limit bolt.

[0014] As a preferred technical solution, a magnetic ring sensor is further provided on the outside of the cutting head.

[0015] As a preferred technical solution, the connecting part 1 includes a first connecting block, the connecting part 2 includes a second connecting block and a rotating disk, one end of the rotating disk is fixedly connected to the second connecting block, and the other end is rotatably connected to the bracket of the cutting head rotating assembly, the second connecting block is provided with a through hole adapted to the output end of the cutting head rotating assembly, the first connecting block is fixedly connected with a docking shaft, and the docking shaft is detachably fixed to the output end of the cutting head rotating assembly through a coupling.

[0016] The beneficial effects of the present invention are:

[0017] (1) In the present invention, a detachable connecting bracket is provided between the cutting head rotating assembly and the linear module, which can provide axial support after the connecting portion 1 and the connecting portion 2 are connected and fixed, thereby preventing the cutting head from shaking due to excessive speed during actual production. At the same time, the detachable connection between the connecting portion 1 and the connecting portion 2 provides convenience for the subsequent replacement of different cutting heads.

[0018] (2) In the present invention, a magnetic ring sensor is provided on the outside of the cutting head to monitor the position and shape of the product surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the motor fixing bracket structure provided by an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of a cross-sectional structure of the connection between the first connecting block and the second connecting block provided in an embodiment of the present utility model;

[0022] Figure numbers: 1. Machine tool; 2. Motor fixing bracket; 3. Tool rotating motor; 4. Contour tool; 5. X-axis linear module; 6. Y-axis linear module; 7. Z-axis linear module; 8. Cutting head rotating bracket; 9. Cutting head rotating motor; 10. Rotating disk; 11. First connecting block; 12. Second connecting block; 13. Door-type elbow clamp; 14. Linear module bracket; 15. Linear module; 16. Cutting head; 17. Thumb cylinder; 18. Counterweight; 19. Gantry; 20. Working platform; 21. Limit block; 22. Limit hole. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] See Figure 1A five-axis laser cutting device includes a machine tool 1, a multi-axis moving component, a cutting head rotating component, a linear module 15, a gantry 19, and a work platform 20. The machine tool 1 is provided with a multi-axis moving component, which includes an X-axis linear module 5, a Y-axis linear module 6, and a Z-axis linear module 7. The Z-axis linear module 7 is fixed on the top of the machine tool 1, and the output end of the Z-axis linear module 7 is connected to the work platform 20 by transmission. The work platform 20 slides with the machine tool 1 through a slide rail slider, wherein the slide rail is fixed to the machine tool 1. The working platform 20 is fixedly connected to the end of the machine tool 1, and a slider adapted to the slide rail is fixedly connected. The top of the machine tool 1 is also fixedly connected to a gantry 19, and the gantry 19 is fixedly connected to an X-axis linear module 5. The output end of the X-axis linear module 5 is fixedly connected to a Z-axis linear module 7. The output end of the Z-axis linear module 7, i.e., the output shaft, is fixedly connected to a cutting head rotating assembly. The output end of the cutting head rotating assembly is detachably connected to a linear module 15 and can drive the linear module 15 to rotate with the axis of the cutting head rotating assembly as the rotating axis.

[0025] It should be noted that the X-axis linear module 5, the Y-axis linear module 6, and the Z-axis linear module 7 are all screw linear modules in the prior art, all of which are commercially available parts, and their drive motors are all servo motors, and their specific structures are not repeated here; and the X-axis, Y-axis, and Z-axis in this embodiment are the length, width, and height directions of the machine tool, respectively, and the cutting head rotating assembly includes a cutting head rotating bracket 8 and a cutting head rotating motor 9, the cutting head rotating bracket 8 is fixedly connected to the moving end of the Z-axis linear module 7, and the cutting head rotating motor is fixedly connected to the cutting head rotating bracket 8. Machine 9, the cutting head rotating motor 9 is transmission-connected to the linear module 15, the cutting head rotating bracket 8 is also rotationally matched with the linear module 15 through the connecting bracket, one end of the connecting bracket is fixedly connected to the linear module bracket 14, the linear module bracket 14 is fixedly connected to the linear module 15, and the other end is rotationally matched with the cutting head rotating bracket 8, the moving end of the linear module 15 is fixedly connected to the cutting head 16, and the outside of the cutting head 16 is fixedly connected to a magnetic ring sensor. By arranging a magnetic ring sensor on the outside of the cutting head 16, the position and shape of the product surface can be monitored.

[0026] See Figure 1 、 Figure 3The connecting bracket includes a first connecting block 11, a second connecting block 12, and a rotating disk 10. The first connecting block 11 is fixedly connected to the linear module 15 through the linear module bracket 14. One end of the rotating disk 10 is fixedly connected to the second connecting block 12, and the other end is rotatably matched with the cutting head rotating bracket 8. The second connecting block 12 is provided with a through hole adapted to the cutting head rotating motor 9. A docking shaft is fixedly connected to the first connecting block 11, and the docking shaft is detachably fixed to the output shaft of the cutting head rotating motor 9 through a coupling. Of course, another detachable method can also be used for fixing, that is, the first connecting block 11 is not provided with a docking shaft, but is fixed There are two limit blocks 21 connected to the fixed connection, and a through hole is provided between the two limit blocks 21 for the output shaft of the cutting head rotary motor 9 to pass through. Two groups of limit holes 22 are also vertically provided in the first connecting block 11, wherein one group of limit holes includes two limit holes 22 arranged side by side. The limit holes 22 pass through the first connecting block 11, thereby forming a limit groove in the through hole. Similarly, a limit groove is also provided on the output shaft of the cutting head rotary motor 9. When the two limit bolts are respectively inserted into the two limit holes 22, the output shaft of the cutting head rotary motor 9 can be limited, thereby achieving the fixation of the first connecting block 11 and the output shaft of the cutting head rotary motor 9;

[0027] The first connecting block 11 forms a first connecting portion, and the second connecting block 12 and the rotating disk 10 form a second connecting portion. The first connecting block 11 and the second connecting block 12 are detachably connected and fixedly connected by at least one latch-type toggle clamp 13. The latch-type toggle clamp 13 includes a handle portion and a base portion. The handle portion of the latch-type toggle clamp 13 is fixedly connected to the first connecting block 11 by a limit bolt, and the base portion is fixedly connected to the second connecting block 12. In this embodiment, two latch-type toggle clamps 13 are provided and are symmetrically arranged with respect to the first connecting block 11.

[0028] In order to improve the connection effect between the first connecting block 11 and the second connecting block 12, a docking groove is opened at one end where the first connecting block 11 and the second connecting block 12 are connected, and the end of the second connecting block 12 extends into the docking groove.

[0029] See Figure 2 The machine tool 1 is fixedly connected to the motor fixing bracket 2 through the working platform 20, and the motor fixing bracket 2 is fixedly connected to the top of the working platform 20. The motor fixing bracket 2 is fixedly connected to the tooling rotating motor 3, and the output end of the tooling rotating motor 3 is connected to the profiling tool 4, wherein the output end of the profiling tool 4 is detachably connected to the output end of the tooling rotating motor 3 through a coupling, so as to facilitate the replacement of different profiling tooling 4 according to different working conditions. The profiling tooling 4 in this embodiment includes a three-jaw chuck or a locking pneumatic cylinder in the prior art. In order to ensure the counterweight of the entire motor fixing bracket 2 and prevent the profiling tooling 4 from being too heavy, a thumb cylinder 17 is also fixed on the motor fixing bracket 2, and a counterweight block 18 is connected between the two moving ends of the thumb cylinder 17.

[0030] See Figure 1 , limit sensors are provided on the X-axis linear module 5, the Y-axis linear module 6, and the Z-axis linear module 7. The five-axis laser automatic cutting equipment in this embodiment can also be provided with a controller, a laser generator, a laser follow-up floating system, and a vision system. The controller is electrically connected to the X-axis linear module 5, the Y-axis linear module 6, the Z-axis linear module 7, the cutting head rotation assembly, the linear module 15, the tooling rotating motor 3, the magnetic ring sensor, and the laser follow-up floating system; the vision system is fixedly connected to the outside of the cutting head 16, and the moving end of the laser follow-up floating system is connected to the cutting head 16, which can adjust the height of the cutting head 16. The laser follow-up floating system is a laser head height adjuster, model BLT421, which is a commercially available part, and the vision system is a Cognex camera, model CAM-CIC-5000-24-G;

[0031] The vision system can adapt to various production speeds and measurement accuracies. Vision software compares deviations between original and actual captured photos, inputting and outputting these deviations to the controller to achieve offset compensation for the laser cutting head and locate the cutting position. A magnetic ring sensor monitors the position and shape of the workpiece surface in real time and transmits this data to the system controller. Based on this data, the controller calculates the position where the laser head should adjust for compensation and issues corresponding instructions to the laser head's follow-up floating system, enabling it to make adjustments and locate the cutting distance. This ensures consistent cutting head height and improves cutting accuracy. This equipment is compatible with precision cutting of all non-uniform metal pipes and sheet metal parts.

[0032] Directions:

[0033] S1. Adjust the position of the mobile cutting head 16 according to the X-axis linear module 5, the Y-axis linear module 6, and the Z-axis linear module 7;

[0034] S2. The first connecting block 11 and the second connecting block 12 are clamped together and fixed with two door-type toggle clamps 13. The angle of the cutting head 16 is adjusted by the cutting head rotating motor 9.

[0035] S3, adjusting the position of the profiling tool 4 by the tool rotating motor 3, on which the product is fixed, thereby adjusting the position of the product;

[0036] S4. The laser follow-up system follows the cutting head 16 and the magnetic ring sensor to move, monitors the position and shape of the product surface through the magnetic ring sensor, and transmits the data to the controller. The controller calculates the position where the laser head should be adjusted and compensated based on the data provided by the magnetic ring sensor, and sends corresponding instructions to the laser follow-up floating system to make corresponding adjustments.

[0037] S5. The laser generator emits light to the laser cutting head 16 for cutting.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A five-axis laser cutting device, comprising a machine tool, wherein the machine tool is provided with a multi-axis moving assembly, characterized in that: The moving end of the multi-axis moving assembly is provided with a cutting head rotating assembly, and the output end of the cutting head rotating assembly is detachably connected to a linear module and can drive the linear module to rotate with the axis of the cutting head rotating assembly as the rotating axis. The bracket of the cutting head rotating assembly is also rotatably matched with the linear module through a connecting bracket. The moving end of the linear module is connected to the cutting head, and the connecting bracket includes a detachably connected connecting part one and a connecting part two. The connecting part one is fixedly connected to the linear module, and the connecting part two is rotatably matched with the bracket of the cutting head rotating assembly.

2. The five-axis laser cutting equipment according to claim 1, characterized in that: The first connecting part and the second connecting part are fixedly connected by at least one door-clip type toggle clamp, and the door-clip type toggle clamp includes a handle part and a base part, the handle part is fixedly connected to the first connecting part, and the base part is fixedly connected to the second connecting part.

3. The five-axis laser cutting equipment according to claim 1, characterized in that: The machine tool is fixedly connected to a tooling rotary motor via a motor fixing bracket, and an output end of the tooling rotary motor is connected to a contouring tooling.

4. The five-axis laser cutting equipment according to claim 3, characterized in that: The output end of the profiling tool is detachably connected to the output end of the tool rotating motor through a coupling.

5. A five-axis laser cutting device according to claim 3 or 4, characterized in that: The profiling tooling includes a three-jaw chuck or a locking pneumatic cylinder.

6. The five-axis laser cutting equipment according to claim 3, characterized in that: A thumb cylinder is fixed on the motor fixing bracket, and a counterweight is connected between two moving ends of the thumb cylinder.

7. The five-axis laser cutting equipment according to claim 3, characterized in that: The multi-axis moving assembly includes an X-axis linear module, a Y-axis linear module, and a Z-axis linear module. A portal is fixedly connected to the top of the machine tool, the X-axis linear module is fixedly connected to the portal, the moving end of the X-axis linear module is fixedly connected to the Z-axis linear module, the Y-axis linear module is fixedly connected to the machine tool, the moving end of the Y-axis linear module is fixedly connected to a working platform, and is fixedly connected to the motor fixing bracket through the working platform.

8. The five-axis laser cutting equipment according to claim 1, characterized in that: The connecting part is fixedly connected to two relatively arranged limit blocks, and the two limit blocks are provided with through holes adapted to the output end of the cutting head rotating assembly. The connecting part is fastened to the output end of the cutting head rotating assembly through a limit bolt.

9. The five-axis laser cutting equipment according to claim 1, characterized in that: A magnetic ring sensor is also provided on the outside of the cutting head.

10. The five-axis laser cutting equipment according to claim 1, characterized in that: The connecting part 1 includes a first connecting block, and the connecting part 2 includes a second connecting block and a rotating disk. One end of the rotating disk is fixedly connected to the second connecting block, and the other end is rotatably connected to the bracket of the cutting head rotating assembly. The second connecting block is provided with a through hole adapted to the output end of the cutting head rotating assembly. A docking shaft is fixedly connected to the first connecting block, and the docking shaft is detachably fixed to the output end of the cutting head rotating assembly through a coupling.

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