Multi-angle adjustable laser cutting machine and cutting method

Abstract

The multi-angle adjusting laser cutting machine comprises an adjusting table, a lifting mechanism and a laser cutting head, a transverse plate is fixedly connected to the telescopic end of the top of the lifting mechanism, a balancing weight is arranged at one end of the transverse plate, a circumferential cutting mechanism is arranged at the other end of the transverse plate, and the circumferential cutting mechanism comprises a rotating batten rotating circumferentially. An adjusting mechanism is arranged on the rotating batten; the adjusting mechanism comprises a coarse adjusting assembly and a fine adjusting assembly. The laser cutting head is quickly adjusted to the position required by the radius through the coarse adjustment assembly in the adjusting mechanism, and then the position of the laser cutting head is further adjusted through the fine adjustment assembly, so that the laser cutting head reaches a finer cutting radius; and after the cutting radius is determined, the circumferential cutting mechanism works to drive the laser cutting head to do circumferential motion, and then refined burr-free circumferential cutting of the laser cutting head is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machines, and in particular relates to a multi-angle adjustable laser cutting machine and a cutting method. Background Art

[0002] Laser cutting machine is an industrial equipment that uses laser technology for high-precision cutting. It focuses the laser beam to a very small point to generate high temperature, thereby achieving precise cutting of materials. As an advanced processing technology, laser cutting machine occupies an important position in modern manufacturing and design due to its high efficiency, precision and versatility.

[0003] Laser cutting machines use a high-intensity laser beam to heat and melt the material, and cut by controlling the movement of the laser beam. Laser cutting technology can achieve extremely high cutting accuracy and complex cutting shapes, and is suitable for a variety of materials.

[0004] For circular cutting of workpieces, the prior art mostly uses PLC to control the coordination of X-axis and Y-axis for circular cutting. However, since the X-axis and Y-axis drive components use gear and rack transmission, there is a cumulative error in the meshing transmission of gears and racks. Therefore, PLC cannot control the fine cutting of the laser cutting head, which is prone to burrs and poor cutting radius accuracy. Summary of the invention

[0005] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0006] A multi-angle adjustable laser cutting machine comprises an adjustment platform, a lifting mechanism and a laser cutting head, wherein the top telescopic end of the lifting mechanism is fixedly connected with a horizontal plate, a counterweight is arranged at one end of the horizontal plate, and a circular cutting mechanism is arranged at the other end, wherein the circular cutting mechanism comprises a rotating slat that rotates in a circular manner, and an adjustment mechanism is arranged on the rotating slat;

[0007] The adjustment mechanism includes a coarse adjustment component and a fine adjustment component. After the coarse adjustment component adjusts the position of the laser cutting head, the fine adjustment component further finely adjusts the cutting radius of the laser cutting head, and cooperates with the circular cutting mechanism to achieve fine burr-free circular cutting.

[0008] As a preferred embodiment of the above technical solution, the adjustment platform includes a base, an X-axis adjustment component and a Y-axis adjustment component, the X-axis adjustment component is used to adjust the horizontal lateral position of the circular cutting mechanism, and the Y-axis adjustment component is used to adjust the horizontal longitudinal position of the circular cutting mechanism.

[0009] As a preferred embodiment of the above technical solution, the X-axis adjustment assembly includes a first threaded rod rotatably installed in the middle of the inner cavity of the base, a first motor is installed on the outer wall of the first threaded rod, and the output shaft of the first motor is fixed to one end of the first threaded rod, the outer periphery of the first threaded rod is threadedly connected to a first sliding block, and the bottom of the first sliding block is slidably connected to the bottom inner wall of the base.

[0010] As a preferred embodiment of the above technical solution, the Y-axis adjustment assembly includes a U-shaped carrier fixedly connected to the top of the first sliding block, a second threaded rod is rotatably installed between the opposite inner walls of the U-shaped carrier, a second motor is installed on the outer wall of the U-shaped carrier, and the output shaft of the second motor is fixed to one end of the second threaded rod, the outer periphery of the second threaded rod is threadedly connected to the second sliding block, and the bottom of the second sliding block is slidably connected to the bottom inner wall of the U-shaped carrier.

[0011] As a preferred embodiment of the above technical solution, the lifting mechanism includes a lifting outer cylinder fixedly connected to the top of the second sliding block, the inner side wall of the lifting outer cylinder is slidably connected with a lifting column, and the top of the lifting column extends out of the top opening of the lifting outer cylinder, and a hydraulic cylinder is installed on the bottom inner wall of the lifting outer cylinder, and the telescopic shaft of the hydraulic cylinder is fixed to the bottom of the lifting column.

[0012] As a preferred embodiment of the above technical solution, the circular cutting mechanism includes a third motor installed on the top of the transverse plate, the output shaft of the third motor passes through the transverse plate and is fixedly connected to a rotating shaft, and the top of the rotating slat and the bottom end of the rotating shaft are fixed.

[0013] As a preferred embodiment of the above technical solution, the coarse adjustment component includes a micro motor fixed on the top of the rotating slat, the output shaft of the micro motor passes through the rotating slat and is fixedly connected to a gear disk, the bottom of the rack is slidably connected to a vertical bar, the side wall of the vertical bar is fixedly connected to a rack meshing with the gear disk, and the bottom of the vertical bar is fixedly connected to a U-shaped plate.

[0014] As a preferred embodiment of the above technical solution, the fine-adjustment component includes a high-precision threaded rod rotatably mounted on the inner side walls opposite to the U-shaped plate, a fine-adjustment motor is mounted on the outer side wall of the U-shaped plate, and the output shaft of the fine-adjustment motor is fixed to one end of the high-precision threaded rod, the outer thread of the high-precision threaded rod is mounted with a mounting block that slides with the top inner wall of the U-shaped plate, and the laser cutting head is mounted at the bottom of the mounting block.

[0015] A cutting method, which is applied to the above-mentioned multi-angle adjustable laser cutting machine, and the cutting method comprises the following steps:

[0016] S1. Determination of the center of the circle: The position of the horizontal plate is adjusted by the adjustment table, and then the position of the circular cutting mechanism is adjusted to determine the cutting center of the circle, so that the circular cutting is complete and the waste is small at this position;

[0017] S2. Establishment of cutting radius: First, the coarse adjustment component in the adjustment mechanism is used to quickly adjust the laser cutting head to the required radius position, and then the fine adjustment component is used to further adjust the position of the laser cutting head to achieve a finer cutting radius;

[0018] S3. Circular cutting: After the cutting radius is established, the circular cutting mechanism drives the laser cutting head to make circular motion, thereby realizing fine burr-free circular cutting of the laser cutting head.

[0019] The beneficial effects of the present invention are:

[0020] In the present invention, the position of the horizontal plate is first adjusted by the adjustment table, and then the position of the circular cutting mechanism is adjusted to establish the cutting center, so that the circular cutting is complete and the waste is small at this position, and then the laser cutting head is quickly adjusted to the required radius position by the coarse adjustment component in the adjustment mechanism, and then the position of the laser cutting head is further adjusted by the fine adjustment component to reach a finer cutting radius; after the cutting radius is established, the circular cutting mechanism works to drive the laser cutting head to perform circular motion, thereby realizing fine burr-free circular cutting of the laser cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 What is shown is a three-dimensional structural schematic diagram of the multi-angle adjustable laser cutting machine in the present invention;

[0022] Figure 2 The figure shows a schematic diagram of the structure of the circular cutting mechanism and the adjusting mechanism in the multi-angle adjustable laser cutting machine of the present invention;

[0023] Figure 3 What is shown is a schematic diagram of the structure of the toothed disc in the multi-angle adjustable laser cutting machine of the present invention;

[0024] Figure 4 Shown is a schematic diagram of the internal structure of the lifting outer cylinder in the multi-angle adjustable laser cutting machine of the present invention.

[0025] In the figure: 10, adjustment table; 11, base; 12, first sliding block; 13, first motor; 14, first threaded rod; 15, U-shaped carrier; 16, second motor; 17, second threaded rod; 18, second sliding block; 20, lifting mechanism; 21, lifting outer cylinder; 22, lifting column; 23, hydraulic cylinder; 31, horizontal plate; 32, counterweight; 40, circular cutting mechanism; 41, third motor; 42, rotating shaft; 43, rotating slats; 50, adjustment mechanism; 51, micro motor; 52, vertical bar; 53, rack; 54, gear disc; 55, U-shaped plate; 56, fine adjustment motor; 57, high-precision threaded rod; 58, mounting block; 60, laser cutting head. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] Example

[0028] like Figure 1 As shown, the multi-angle adjustable laser cutting machine includes an adjustment platform 10, a lifting mechanism 20 and a laser cutting head 60. The top telescopic end of the lifting mechanism 20 is fixedly connected with a horizontal plate 31. A counterweight block 32 is arranged at one end of the horizontal plate 31, and a circular cutting mechanism 40 is arranged at the other end. The circular cutting mechanism 40 includes a rotating slat 43 that rotates in a circular manner, and an adjustment mechanism 50 is arranged on the rotating slat 43.

[0029] The adjustment mechanism 50 includes a coarse adjustment component and a fine adjustment component. After the coarse adjustment component adjusts the position of the laser cutting head 60, the fine adjustment component further finely adjusts the cutting radius of the laser cutting head 60, and cooperates with the circular cutting mechanism 40 to achieve fine burr-free circular cutting.

[0030] In the present invention, the position of the horizontal plate 31 is first adjusted by the adjustment table 10, and then the position of the circular cutting mechanism 40 is adjusted to establish the cutting center, so that the circular cutting is complete and the waste is small at this position, and then the laser cutting head 60 is quickly adjusted to the required radius position through the coarse adjustment component in the adjustment mechanism 50, and then the position of the laser cutting head 60 is further adjusted through the fine adjustment component to reach a finer cutting radius; after the cutting radius is established, the circular cutting mechanism 40 works to drive the laser cutting head 60 to perform circular motion, thereby realizing fine burr-free circular cutting of the laser cutting head 60.

[0031] The adjustment platform 10 includes a base 11 , an X-axis adjustment component and a Y-axis adjustment component. The X-axis adjustment component is used to adjust the horizontal transverse position of the circular cutting mechanism 40 , and the Y-axis adjustment component is used to adjust the horizontal longitudinal position of the circular cutting mechanism 40 .

[0032] The X-axis adjustment assembly includes a first threaded rod 14 rotatably mounted in the middle of the inner cavity of the base 11, a first motor 13 is mounted on the outer wall of the first threaded rod 14, and the output shaft of the first motor 13 is fixed to one end of the first threaded rod 14, the outer periphery of the first threaded rod 14 is threadedly connected to a first sliding block 12, and the bottom of the first sliding block 12 is slidably connected to the bottom inner wall of the base 11.

[0033] The working principle of the X-axis adjustment component is: the first motor 13 drives the first threaded rod 14 to rotate. Under the threaded connection between the first threaded rod 14 and the first sliding block 12, the rotation of the first threaded rod 14 drives the first sliding block 12 and the components on the top of the first sliding block 12 to move horizontally along the X-axis as a whole, thereby adjusting the horizontal lateral position of the circular cutting mechanism 40.

[0034] The Y-axis adjustment assembly includes a U-shaped platform 15 fixedly connected to the top of the first sliding block 12, a second threaded rod 17 is rotatably installed between the opposite inner walls of the U-shaped platform 15, a second motor 16 is installed on the outer wall of the U-shaped platform 15, and the output shaft of the second motor 16 is fixed to one end of the second threaded rod 17, a second sliding block 18 is threadedly connected to the outer periphery of the second threaded rod 17, and the bottom of the second sliding block 18 is slidably connected to the bottom inner wall of the U-shaped platform 15.

[0035] The working principle of the Y-axis adjustment component is: the second motor 16 drives the second threaded rod 17 to rotate. Under the threaded connection between the second threaded rod 17 and the second sliding block 18, the rotation of the second threaded rod 17 drives the second sliding block 18 and the component on the top of the second sliding block 18 to move horizontally along the Y-axis as a whole, thereby adjusting the horizontal and longitudinal position of the circular cutting mechanism 40.

[0036] like Figure 4 As shown, the lifting mechanism 20 includes a lifting outer cylinder 21 fixedly connected to the top of the second sliding block 18, a lifting column 22 is slidably connected to the inner side wall of the lifting outer cylinder 21, and the top of the lifting column 22 extends out of the top opening of the lifting outer cylinder 21, and a hydraulic cylinder 23 is installed on the bottom inner wall of the lifting outer cylinder 21, and the telescopic shaft of the hydraulic cylinder 23 is fixed to the bottom of the lifting column 22. The lifting mechanism 20 is provided to adjust the height distance between the laser cutting head 60 and the workpiece, so as to facilitate its focusing and cutting.

[0037] like Figure 2 , Figure 3 As shown, the circular cutting mechanism 40 includes a third motor 41 installed on the top of the horizontal plate 31, the output shaft of the third motor 41 passes through the horizontal plate 31 and is fixedly connected to the rotating shaft 42, and the top of the rotating slat 43 is fixed to the bottom of the rotating shaft 42. In the present invention, the third motor 41 drives the rotating slat 43 to rotate around the rotating shaft 42, thereby driving the laser cutting head 60 at the bottom of the rotating slat 43 to rotate around the rotating shaft 42. Compared with the circular cutting method of PLC controlling the X-axis and the Y-axis to cooperate, the circular cutting method of the present invention can reduce the probability of burrs.

[0038] The coarse adjustment component includes a micro motor 51 fixed on the top of the rotating slat 43, the output shaft of the micro motor 51 passes through the rotating slat 43 and is fixedly connected to a gear plate 54, the bottom of the rack 53 is slidably connected to a vertical bar 52, the side wall of the vertical bar 52 is fixedly connected to a rack 53 meshing with the gear plate 54, and the bottom of the vertical bar 52 is fixedly connected to a U-shaped plate 55.

[0039] The fine-tuning assembly includes a high-precision threaded rod 57 rotatably mounted on the inner side wall opposite to the U-shaped plate 55, a fine-tuning motor 56 is mounted on the outer side wall of the U-shaped plate 55, and the output shaft of the fine-tuning motor 56 is fixed to one end of the high-precision threaded rod 57, the outer thread of the high-precision threaded rod 57 is mounted with a mounting block 58 that slides with the top inner wall of the U-shaped plate 55, and the laser cutting head 60 is mounted at the bottom of the mounting block 58.

[0040] The present invention firstly quickly adjusts the laser cutting head 60 to the required radius position through the coarse adjustment component in the adjustment mechanism 50, and then further adjusts the position of the laser cutting head 60 through the fine adjustment component to make it reach a finer cutting radius; thereby achieving both efficient and accurate cutting radius; and then cooperates with the circular motion of the circular cutting mechanism 40 to achieve fine burr-free circular cutting.

[0041] A cutting method is applied to the above-mentioned multi-angle adjustable laser cutting machine, and the cutting method comprises the following steps:

[0042] S1. Determination of the center of the circle: adjusting the position of the horizontal plate 31 by adjusting the table 10, and then adjusting the position of the circular cutting mechanism 40 to determine the cutting center of the circle, so that the circular cutting is complete and the waste is small at this position;

[0043] S2. Establishing the cutting radius: First, the laser cutting head 60 is quickly adjusted to the desired radius position by the coarse adjustment component in the adjustment mechanism 50, and then the position of the laser cutting head 60 is further adjusted by the fine adjustment component to reach a finer cutting radius;

[0044] S3. Circular cutting: After the cutting radius is established, the circular cutting mechanism 40 drives the laser cutting head 60 to perform circular motion, thereby achieving fine burr-free circular cutting by the laser cutting head 60 .

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A multi-angle adjustable laser cutting machine, comprising an adjustment platform (10), a lifting mechanism (20) and a laser cutting head (60), characterized in that: The top telescopic end of the lifting mechanism (20) is fixedly connected to a transverse plate (31), one end of the transverse plate (31) is provided with a counterweight block (32), and the other end is provided with a circular cutting mechanism (40), the circular cutting mechanism (40) comprises a rotating slat (43) that rotates in a circular motion, and an adjusting mechanism (50) is provided on the rotating slat (43); The adjustment mechanism (50) comprises a coarse adjustment component and a fine adjustment component. After the coarse adjustment component adjusts the position of the laser cutting head (60), the fine adjustment component further finely adjusts the cutting radius of the laser cutting head (60), and cooperates with the circular cutting mechanism (40) to achieve fine burr-free circular cutting.

2. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The adjustment platform (10) comprises a base (11), an X-axis adjustment component and a Y-axis adjustment component, wherein the X-axis adjustment component is used to adjust the horizontal transverse position of the circular cutting mechanism (40), and the Y-axis adjustment component is used to adjust the horizontal longitudinal position of the circular cutting mechanism (40).

3. The multi-angle adjustable laser cutting machine according to claim 2, characterized in that: The X-axis adjustment assembly comprises a first threaded rod (14) rotatably mounted in the middle of an inner cavity of a base (11); a first motor (13) is mounted on an outer wall of the first threaded rod (14); an output shaft of the first motor (13) is fixed to one end of the first threaded rod (14); a first sliding block (12) is threadedly connected to the outer periphery of the first threaded rod (14); and a bottom of the first sliding block (12) is slidably connected to an inner wall of a bottom of the base (11).

4. The multi-angle adjustable laser cutting machine according to claim 3, characterized in that: The Y-axis adjustment component comprises a U-shaped carrier (15) fixedly connected to the top of a first sliding block (12), a second threaded rod (17) rotatably mounted between opposite inner walls of the U-shaped carrier (15), a second motor (16) mounted on the outer wall of the U-shaped carrier (15), and an output shaft of the second motor (16) is fixed to one end of the second threaded rod (17), a second sliding block (18) is threadedly connected to the outer periphery of the second threaded rod (17), and the bottom of the second sliding block (18) is slidably connected to the bottom inner wall of the U-shaped carrier (15).

5. The multi-angle adjustable laser cutting machine according to claim 4, characterized in that: The lifting mechanism (20) comprises a lifting outer cylinder (21) fixedly connected to the top of the second sliding block (18); the inner side wall of the lifting outer cylinder (21) is slidably connected to a lifting column (22); the top of the lifting column (22) extends out of the top opening of the lifting outer cylinder (21); a hydraulic cylinder (23) is installed on the bottom inner wall of the lifting outer cylinder (21); and the telescopic shaft of the hydraulic cylinder (23) is fixed to the bottom of the lifting column (22).

6. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The circular cutting mechanism (40) comprises a third motor (41) mounted on the top of the transverse plate (31), the output shaft of the third motor (41) passes through the transverse plate (31) and is fixedly connected to a rotating shaft (42), and the top of the rotating slat (43) is fixed to the bottom end of the rotating shaft (42).

7. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The coarse adjustment component comprises a micro motor (51) fixed on the top of a rotating plate (43); an output shaft of the micro motor (51) passes through the rotating plate (43) and is fixedly connected to a toothed disc (54); a vertical bar (52) is slidably connected to the bottom of the toothed bar (53); a toothed bar (53) meshing with the toothed disc (54) is fixedly connected to the side wall of the vertical bar (52); and a U-shaped plate (55) is fixedly connected to the bottom of the vertical bar (52).

8. The multi-angle adjustable laser cutting machine according to claim 7, characterized in that: The fine adjustment component comprises a high-precision threaded rod (57) rotatably mounted on the inner side wall opposite to the U-shaped plate (55), a fine adjustment motor (56) is mounted on the outer side wall of the U-shaped plate (55), and the output shaft of the fine adjustment motor (56) is fixed to one end of the high-precision threaded rod (57), the outer peripheral thread of the high-precision threaded rod (57) is mounted with a mounting block (58) that slides with the inner wall of the top of the U-shaped plate (55), and a laser cutting head (60) is mounted at the bottom of the mounting block (58).

9. A cutting method, characterized in that: The cutting method is applied to the multi-angle adjustable laser cutting machine described in any one of claims 1 to 8, and the cutting method comprises the following steps: S1. Determination of the center of the circle: adjusting the position of the horizontal plate (31) by means of the adjusting table (10), and then adjusting the position of the circular cutting mechanism (40) to determine the cutting center of the circle, so that the circular cutting is complete and the waste is small at this position; S2. Establishing the cutting radius: firstly, the laser cutting head (60) is quickly adjusted to the desired radius position by the coarse adjustment component in the adjustment mechanism (50), and then the position of the laser cutting head (60) is further adjusted by the fine adjustment component to achieve a finer cutting radius; S3, Circular Cutting: After the cutting radius is determined, the circular cutting mechanism (40) drives the laser cutting head (60) to perform circular motion, thereby achieving fine burr-free circular cutting by the laser cutting head (60).

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