A five-axis laser cutting device for sheet metal processing

Abstract

The present application relates to the field of laser cutting, especially to a five-axis laser cutting device for sheet metal machining, which is suitable for various sheet metal machining scenes and comprises a base, a placement tool and the like; the base is provided with a discharging function, a placement tool is detachably installed on the top of the base, a three-axis module is installed on the top of the base, a laser head is installed on the three-axis module through an inclination assembly, and the inclination assembly can drive the laser head to rotate in the left-right direction in the horizontal plane and rotate in the front-back direction in the vertical plane; the three-axis module can drive the laser head to move in all directions, the inclination assembly can change the angle of the laser head, the laser can cut the cutting surface of the workpiece vertically, and the same operation can be used to cut the workpiece when the cutting position needs to be inclined, so that the device can be suitable for various sheet metal machining scenes and improve the practicability of the device.

Description

Technical Field

[0001] This invention relates to the field of laser cutting, and more particularly to a five-axis laser cutting device for sheet metal processing. Background Technology

[0002] In modern manufacturing, sheet metal processing is an indispensable and crucial process in many fields, including machinery, automobiles, aerospace, and electronic equipment. With increasingly complex product structures and ever-increasing demands for processing precision, traditional sheet metal cutting techniques are no longer sufficient to meet the needs of high-efficiency, high-precision, and multi-angle complex contour processing. Currently, common sheet metal cutting equipment mainly includes CNC punching machines, shearing machines, and two-dimensional or three-dimensional laser cutting machines. Among these, laser cutting, due to its advantages such as non-contact operation, small heat-affected zone, high cutting precision, and good flexibility, has become one of the mainstream technologies in sheet metal processing.

[0003] However, most traditional laser cutting devices use laser heads with fixed angles or that can only move along the three linear axes of X, Y, and Z, with the beam direction always perpendicular to the workpiece surface. While this structure is suitable for cutting flat surfaces or simple contours, it often has significant limitations when dealing with sheet metal parts that require complex geometric features such as bevels, chamfers, bevels, or multi-angle joints. For example, before welding, the edges of the sheet metal need to be beveled at a specific angle. If a traditional vertical laser head is used, the workpiece posture needs to be clamped and adjusted multiple times, which is not only inefficient but also prone to introducing cumulative errors, affecting assembly accuracy.

[0004] Therefore, there is an urgent need to develop a five-axis laser cutting device for sheet metal processing that is suitable for various sheet metal processing scenarios. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a five-axis laser cutting device for sheet metal processing that is suitable for various sheet metal processing scenarios.

[0006] The technical solution is as follows: A five-axis laser cutting device for sheet metal processing includes a base, a placement fixture, a three-axis module, a tilting component, and a laser head. The base has a material discharge function. The placement fixture is detachably installed on the top of the base. The three-axis module is installed on the top of the base. The laser head is installed on the three-axis module through the tilting component. The tilting component can drive the laser head to rotate left and right in the horizontal plane and rotate forward and backward in the vertical plane.

[0007] As a further preferred embodiment, the base includes a mounting panel installed on top of the base, and the bottom of the mounting panel has a discharge channel extending rearward and downward.

[0008] As a further preferred embodiment, the placement fixture includes a placement plate placed on top of the mounting panel. The placement plate has symmetrical positioning grooves on both the front and rear sides. A positioning pin is provided on the mounting panel at the rear positioning groove. Multiple rows of upwardly recessed conical blocks are installed on the top of the placement plate. A fixing pin is inserted into the mounting panel at the front positioning groove. Waist-shaped holes are provided on both the left and right sides of the placement plate.

[0009] As a further preferred embodiment, the three-axis module includes gantry frames symmetrically arranged on the top of the mounting panel. Each gantry frame has a Y-axis module on its top. An X-axis module is connected between the sliders of the Y-axis modules. A Z-axis module is connected to the slider of the X-axis module. A mounting plate is mounted on the slider of the Z-axis module. A concave groove is formed on the top of the mounting plate.

[0010] As a further preferred embodiment, the tilting assembly includes a left-right rotation assembly that drives the laser head to rotate left and right in a horizontal plane, and a front-back rotation assembly that drives the laser head to rotate forward and backward in a vertical plane.

[0011] As a further preferred embodiment, the left and right rotating assembly includes a rotating block rotatably mounted on a mounting plate, a worm gear concentrically mounted on the rotating block, a first motor disposed on the mounting plate on the side of the worm gear, and a worm gear meshing with the worm gear mounted on the output of the bottom of the first motor.

[0012] As a further preferred embodiment, the front and rear rotating assembly includes connecting ears symmetrically mounted on the front side of the worm gear, with an adapter block rotatably mounted between the connecting ears via a shaft. The laser head is mounted on the front side of the adapter block, and a second motor is mounted on the connecting ears. The output shaft of the second motor is fixedly connected to the adapter block.

[0013] As a further preferred embodiment, it also includes a laser reflection assembly detachably mounted on the lower part of the laser head, the laser reflection assembly including a reflector that reflects the laser, a revolution assembly that drives the reflector to revolve around the sun, and a rotation assembly that drives the reflector to rotate on its own axis.

[0014] As a further preferred embodiment, the revolution assembly includes a mounting cover that can be detachably installed on the lower part of the laser head. A large gear ring is rotatably mounted on the bottom of the mounting cover. A rotating cover is mounted on the bottom of the large gear ring. A third motor is fixedly mounted on the mounting cover. A small gear that meshes with the large gear ring is connected to the output shaft of the third motor.

[0015] As a further preferred embodiment, the reflector is rotatably mounted on the inner wall of the rotating cover. The rotation assembly includes a spring connected between the reflector and the inner wall of the rotating cover. A nut is rotatably mounted on the rotating cover on the back of the reflector. A screw is threadedly connected to the nut. The screw is slidably connected to the rotating cover. The inner end of the screw contacts the back of the reflector. A fourth motor is fixedly mounted on the outer side of the rotating cover. A transmission gear is provided on the output shaft of the fourth motor and the outer end face of the nut. The transmission gears mesh. A notch is provided on the rotating cover on the opposite side of the reflector.

[0016] This invention has the following advantages: The three-axis module allows the laser head to move omnidirectionally. The tilting component changes the angle of the laser head, enabling the laser to cut perpendicularly to the workpiece's cutting surface. Similarly, if the cutting position requires tilting, the same operation can be performed, making the device suitable for various sheet metal processing scenarios and improving its practicality. Placing the workpiece on top of the conical block provides point support, preventing laser damage to the tooling during cutting. The laser reflection component changes the tilt angle of the reflector, altering the laser's cutting angle and compensating for areas the tilting component cannot reach, thus achieving laser-free cutting and further enhancing the equipment's usability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the base of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the tooling used in this invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the three-axis module of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the tilting component of the present invention.

[0022] Figure 6 This is an enlarged view of the tilting component of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the laser reflection component of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the component on the rotating cover of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the self-rotating component of the present invention.

[0026] Wherein: 1-Base, 11-Staple, 12-Mounting panel, 13-Discharge channel, 2-Placement fixture, 21-Placement plate, 22-Conical block, 23-Positioning groove, 24-Positioning pin, 25-Fixing pin, 26-Oval hole, 3-Three-axis module, 31-Gantry frame, 32-Y-axis module, 33-X-axis module, 34-Z-axis module, 35-Mounting plate, 36-Concave groove, 4-Tilting assembly, 41-Rotating block 42-worm gear, 43-first motor, 44-worm, 45-connecting ear, 46-adapter block, 47-second motor, 5-laser head, 6-laser reflector assembly, 61-mounting cover, 62-large gear ring, 63-rotating cover, 64-third motor, 65-pinion, 66-notch, 67-reflector, 68-spring, 69-nut, 610-screw, 611-fourth motor, 612-transmission gear. Detailed Implementation

[0027] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0028] Example 1: A five-axis laser cutting device for sheet metal processing, such as Figures 1-6 As shown, the device includes a base 1, a placement fixture 2, a three-axis module 3, a tilting assembly 4, and a laser head 5. The base 1 has a material discharge function, which discharges the cut workpieces to the rear of the device. The placement fixture 2 is detachably installed on the top of the base 1. The contact surface between the placement fixture 2 and the workpiece is a point contact to prevent the laser from damaging the placement fixture 2. The placement fixture 2 can also be disassembled for easy replacement. The three-axis module 3 is installed on the top of the base 1. The laser head 5 is installed on the three-axis module 3 through the tilting assembly 4. The tilting assembly 4 can drive the laser head 5 to rotate left and right in the horizontal plane and forward and backward in the vertical plane. The three-axis module 3 can drive the laser head 5 to move in all directions.

[0029] A five-axis laser cutting device for sheet metal processing is used as follows: First, the workpiece is placed on top of the placement fixture 2. The laser head 5 is moved to the cutting position by the three-axis module 3. The laser head 5 cuts the workpiece. When the cutting surface of the workpiece is not horizontal, the angle of the laser head 5 is changed by the tilting component 4 so that the laser can cut perpendicularly to the cutting surface of the workpiece. At the same time, if the cutting position needs to be tilted, cutting can also be performed by the same operation. This device can be applied to a variety of sheet metal processing scenarios, improving the practicality of the device.

[0030] like Figure 2 As shown, the base 1 includes a base 11, a mounting panel 12, and a feeding channel 13. The mounting panel 12 is fixedly mounted on the top of the base 11 by bolts. The bottom of the mounting panel 12 has a feeding channel 13 extending downward and backward. The feeding channel 13 is located behind the tooling 2. The cut workpiece is discharged from the equipment through the feeding channel 13.

[0031] like Figure 3 As shown, the placement fixture 2 includes a placement plate 21, a conical block 22, a positioning pin 24, and a fixing pin 25. The placement plate 21 is placed on top of the mounting panel 12. Semi-circular positioning grooves 23 are symmetrically formed on both the front and rear sides of the placement plate 21, with rounded edges on the left and right sides. Positioning pins 24 are symmetrically and vertically arranged on the mounting panel 12 at the rear positioning groove 23. When installing the placement plate 21, the rear positioning groove 23 rests against the positioning pins 24 to position the placement plate 21. The top is equipped with multiple rows of upwardly recessed conical blocks 22. The workpiece is placed on the top of the conical blocks 22 to achieve point support for the workpiece, thereby preventing the laser from damaging the fixture during the cutting process. A fixing pin 25 is inserted into the mounting panel 12 at the front positioning groove 23. The fixing pin 25 is used to limit the front of the placement plate 21. The placement plate 21 has waist-shaped holes 26 on both the left and right sides. After pulling out the fixing pin 25, the hand is placed in the waist-shaped hole 26 to facilitate manual picking up the placement fixture 2 for replacement.

[0032] like Figure 4 As shown, the three-axis module 3 includes a gantry 31, a Y-axis module 32, an X-axis module 33, a Z-axis module 34, and a mounting plate 35. The gantry 31 is symmetrically fixed to the top of the mounting panel 12 by bolts. The gantry 31 extends forward and backward. The top of the gantry 31 is fixed with Y-axis modules 32 by bolts. The sliders of the Y-axis modules 32 are fixedly connected with X-axis modules 33 by bolts. The Y-axis modules 32 drive the X-axis modules 33 to move forward and backward. The sliders of the X-axis modules 33 are fixedly connected with Z-axis modules 34 by bolts. The X-axis modules 33 drive the Z-axis modules 34 to move left and right. The sliders of the Z-axis modules 34 are fixedly mounted with mounting plates 35 by bolts. The top of the mounting plate 35 has a concave groove 36. The Z-axis modules 34 drive the mounting plate 35 to move up and down.

[0033] like Figure 5 and Figure 6As shown, the tilting assembly 4 includes a left-right rotation assembly that drives the laser head 5 to rotate left and right in the horizontal plane, and a front-back rotation assembly that drives the laser head 5 to rotate back and forth in the vertical plane. The left-right rotation assembly includes a rotating block 41, a worm gear 42, a first motor 43, and a worm 44. The rotating block 41 is rotatably mounted on the front side of the mounting plate 35. The worm gear 42 is concentrically mounted on the rotating block 41. The first motor 43 is fixedly mounted on the mounting plate 35 on the side of the worm gear 42 by bolts. The output of the first motor 43 is mounted on the bottom of the first motor 43. The worm 44 meshes with the worm gear 42; the front and rear rotating assembly includes connecting ears 45, adapter blocks 46, and a second motor 47. Connecting ears 45 are symmetrically fixed on the front side of the worm gear 42. Adapter blocks 46 are rotatably mounted between the connecting ears 45 via shafts. Adapter blocks 46 can rotate up and down. The laser head 5 is fixedly mounted on the front side of the adapter blocks 46 by bolts. The second motor 47 is mounted on the connecting ears 45. The output shaft of the second motor 47 is fixedly connected to the adapter blocks 46, and the second motor 47 drives the adapter blocks 46 to rotate back and forth.

[0034] In use: First, place the workpiece on top of the conical block 22. Then, change the position of the laser head 5 through the Y-axis module 32 and the X-axis module 33, and adjust the focal length of the laser head 5 through the Z-axis module 34 to cut the workpiece. If the cutting surface of the workpiece is not horizontal, the first motor 43 drives the worm gear 44 to rotate, which in turn drives the worm wheel 42 to rotate, causing the rotating block 41 to rotate, thereby driving the laser head 5 to rotate left or right to change the cutting angle of the laser head 5. At the same time, the second motor 47 drives the connecting ear 45 to rotate, thereby driving the laser head 5 to rotate forward or backward to change the cutting angle of the laser head 5. The concave groove 36 can increase the forward swing angle of the laser head 5, so that the laser can cut perpendicular to the workpiece cutting surface. It can also be used to cut at an angle to meet the needs of different workpiece cutting requirements and improve the practicality of the equipment. After the workpiece is cut, the cut workpiece is discharged from the equipment through the unloading channel 13.

[0035] like Figures 7-9As shown, it also includes a laser reflection assembly 6 detachably mounted on the lower part of the laser head 5. The laser reflection assembly 6 includes a reflector 67 that reflects the laser, a revolution assembly that drives the reflector 67 to revolve around the center, and a rotation assembly that drives the reflector 67 to rotate on its own axis. The revolution assembly includes a mounting cover 61, a large gear ring 62, a rotating cover 63, a third motor 64, and a pinion 65. The mounting cover 61 is detachably mounted on the lower part of the laser head 5. The large gear ring 62 is concentrically mounted on the bottom of the mounting cover 61, and the rotating cover 63 is concentrically mounted on the bottom of the large gear ring 62. The third motor 64 with its output shaft facing downward is fixed on the mounting cover 61 by bolts. The pinion 65 that meshes with the large gear ring 62 is connected to the output shaft of the third motor 64. The rotating cover 63 is driven to rotate by the third motor 64, the pinion 65, and the large gear ring 62. The rotation assembly includes a spring 68, a nut 69, and a screw. The system includes a rod 610, a fourth motor 611, and a transmission gear 612. A reflector 67 is rotatably mounted on the inner wall of a rotating cover 63. A spring 68 connects the reflector 67 and the inner wall of the rotating cover 63. A nut 69 is rotatably mounted on the rotating cover 63 on the back of the reflector 67. A screw 610 is threaded into the nut 69 and slides horizontally with the rotating cover 63. The inner end of the screw 610 contacts the back of the reflector 67. When the screw 610 moves in and out, it can change the tilt angle of the reflector 67, thereby changing the reflection angle of the laser. A fourth motor 611 is fixedly mounted on the outer side of the rotating cover 63. The output shaft of the fourth motor 611 and the outer end face of the nut 69 are both provided with transmission gears 612. The transmission gears 612 mesh. A notch 66 is opened on the rotating cover 63 on the opposite side of the reflector 67, and the reflected laser is emitted through the notch 66.

[0036] In use: The laser beam is irradiated onto the reflector 67, which reflects the laser beam. When the laser cutting position needs to be changed, the third motor 64 is controlled to rotate, which drives the rotating cover 63 to rotate via the pinion 65 and the large gear ring 62. This, in turn, drives the reflector 67 and the notch 66 to rotate. The rotation of the reflector 67 changes the laser reflection position, and the reflected laser beam irradiates the workpiece through the notch 66 for cutting. When the laser cutting angle needs to be changed, the fourth motor 611 is controlled to rotate, which drives the screw 610 to move forward or backward via the transmission gear 612. The screw 610, in conjunction with the spring 68, changes the tilt angle of the reflector 67, thereby changing the laser cutting angle. This compensates for the positions that the tilting component 4 cannot reach when the laser head 5 rotates, thus enabling laser cutting without blind spots and further improving the practicality of the equipment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A five-axis laser cutting device for sheet metal processing, characterized in that, It includes a base (1), a placement fixture (2), a three-axis module (3), a tilting component (4), and a laser head (5). The base (1) has a material discharge function. The placement fixture (2) is detachably installed on the top of the base (1). The three-axis module (3) is installed on the top of the base (1). The laser head (5) is installed on the three-axis module (3) through the tilting component (4). The tilting component (4) can drive the laser head (5) to rotate left and right in the horizontal plane and rotate forward and backward in the vertical plane.

2. The five-axis laser cutting device for sheet metal processing as described in claim 1, characterized in that, The base (1) includes a mounting panel (12) installed on the top of the base (11), and the bottom of the mounting panel (12) has a feeding channel (13) extending downward and backward.

3. The five-axis laser cutting device for sheet metal processing as described in claim 2, characterized in that, The placement fixture (2) includes a placement plate (21) placed on top of the mounting panel (12). The placement plate (21) has symmetrical positioning grooves (23) on both the front and rear sides. A positioning pin (24) is provided on the mounting panel (12) at the rear positioning groove (23). Multiple rows of upwardly recessed conical blocks (22) are installed on the top of the placement plate (21). A fixing pin (25) is inserted on the mounting panel (12) at the front positioning groove (23). Waist-shaped holes (26) are provided on both the left and right sides of the placement plate (21).

4. The five-axis laser cutting device for sheet metal processing as described in claim 2, characterized in that, The three-axis module (3) includes a gantry (31) symmetrically arranged on the top of the mounting panel (12). A Y-axis module (32) is provided on the top of each gantry (31). An X-axis module (33) is connected between the sliders of the Y-axis module (32). A Z-axis module (34) is connected to the slider of the X-axis module (33). A mounting plate (35) is installed on the slider of the Z-axis module (34). A concave groove (36) is provided on the top of the mounting plate (35).

5. A five-axis laser cutting device for sheet metal processing as described in claim 4, characterized in that, The tilting component (4) includes a left-right rotation component that drives the laser head (5) to rotate in the left-right direction in the horizontal plane and a front-back rotation component that drives the laser head (5) to rotate in the front-back direction in the vertical plane.

6. The five-axis laser cutting device for sheet metal processing as described in claim 5, characterized in that, The left and right rotating assembly includes a rotating block (41) rotatably mounted on a mounting plate (35), a worm gear (42) concentrically mounted on the rotating block (41), a first motor (43) on the mounting plate (35) on the side of the worm gear (42), and a worm (44) meshing with the worm gear (42) mounted on the output of the bottom of the first motor (43).

7. A five-axis laser cutting device for sheet metal processing as described in claim 6, characterized in that, The front and rear rotating assembly includes connecting ears (45) symmetrically installed on the front side of the worm gear (42). A transition block (46) is rotatably installed between the connecting ears (45) via a shaft. The laser head (5) is installed on the front side of the transition block (46). A second motor (47) is installed on the connecting ears (45). The output shaft of the second motor (47) is fixedly connected to the transition block (46).

8. The five-axis laser cutting device for sheet metal processing as described in claim 7, characterized in that, It also includes a laser reflection assembly (6) that can be detachably installed on the lower part of the laser head (5). The laser reflection assembly (6) includes a reflector (67) that reflects the laser, a revolution assembly that drives the reflector (67) to revolve around the center, and a rotation assembly that drives the reflector (67) to rotate on its own axis.

9. A five-axis laser cutting device for sheet metal processing as described in claim 8, characterized in that, The orbital assembly includes a mounting cover (61) that can be detachably installed on the lower part of the laser head (5). A large gear ring (62) is rotatably mounted on the bottom of the mounting cover (61). A rotating cover (63) is installed on the bottom of the large gear ring (62). A third motor (64) is fixedly installed on the mounting cover (61). A small gear (65) that meshes with the large gear ring (62) is connected to the output shaft of the third motor (64).

10. A five-axis laser cutting device for sheet metal processing as described in claim 9, characterized in that, The reflector (67) is rotatably mounted on the inner wall of the rotating cover (63). The self-rotation assembly includes a spring (68) connected between the reflector (67) and the inner wall of the rotating cover (63). A nut (69) is rotatably mounted on the rotating cover (63) on the back of the reflector (67). A screw (610) is threadedly connected to the nut (69). The screw (610) is slidably connected to the rotating cover (63). The inner end of the screw (610) contacts the back of the reflector (67). A fourth motor (611) is fixedly mounted on the outer side of the rotating cover (63). A transmission gear (612) is provided on the output shaft of the fourth motor (611) and the outer end face of the nut (69). The transmission gear (612) meshes. A notch (66) is opened on the rotating cover (63) on the opposite side of the reflector (67).

Images