Laser cutting machine tool capable of rapid cutting of small spatial contours

Abstract

This invention discloses a laser cutting machine tool capable of rapid cutting of small spatial contours, comprising an X-axis module, a Y-axis module, a Z-axis module, an A-axis module, a C-axis module, and a laser cutting head. The C-axis module is fixed to a sliding body of the Z-axis module, and the A-axis module is fixed to a rotating body of the C-axis module. The machine also includes a C2-axis module and a C3-axis module. The C2-axis module is fixedly mounted on the rotating body of the A-axis module, and the C3-axis module is fixedly mounted on the rotating body of the C2-axis module. The rotation center lines of the C2-axis module, C3-axis module, and C-axis module are all parallel to the sliding direction of the Z-axis module. The laser cutting head is fixedly mounted on the rotating body of the C3-axis module. The beneficial effect of this invention is that when cutting small spatial contours, the X, Y, Z, A, and C axes can all remain stationary, resulting in higher cutting efficiency.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, and specifically to a laser cutting machine tool capable of rapid cutting of small spatial contours. Background Technology

[0002] A gantry-type five-axis laser processing machine tool includes three linear axes and two rotary axes: X-axis, Y-axis, Z-axis, A-axis, and C-axis. The X, Y, and Z axes represent linear motion, the A-axis represents rotational motion with its center line parallel to the X-axis, and the C-axis represents rotational motion with its center line parallel to the Z-axis. This gantry-type five-axis laser processing machine tool is suitable for processing large parts, such as automotive and aircraft sheet metal.

[0003] In existing technologies, when a five-axis laser processing machine tool cuts small contours (such as small-diameter holes) on a plate, it is necessary not only to move the A and C axis motors, but also to move the X, Y and Z axes with greater mass. Therefore, the inertia is large during the movement, making it difficult to move and lacking flexibility, resulting in low efficiency in cutting small contours in space. Summary of the Invention

[0004] In view of this, the present invention provides a laser cutting machine tool capable of rapid cutting of small spatial contours. When cutting small spatial contours, the X, Y, Z, A and C axes can all remain stationary, resulting in higher cutting efficiency.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A laser cutting machine tool capable of rapid cutting of small spatial contours includes an X-axis module, a Y-axis module, a Z-axis module, an A-axis module, a C-axis module, and a laser cutting head. The C-axis module is fixed to a sliding body of the Z-axis module, and the A-axis module is fixed to a rotating body of the C-axis module. Crucially, it also includes a C2-axis module and a C3-axis module. The C2-axis module is fixedly mounted on the rotating body of the A-axis module, and the C3-axis module is fixedly mounted on the rotating body of the C2-axis module. The rotation center lines of the C2-axis module, C3-axis module, and C-axis module are all parallel to the sliding direction of the Z-axis module. The laser cutting head is fixedly mounted on the rotating body of the C3-axis module.

[0007] Preferably, the C2 axis module includes a C2 motor and a second rotating component. The second rotating component is provided with a left mounting hole and a right mounting hole with parallel center lines. The output shaft of the C2 motor is fixedly installed in the right mounting hole.

[0008] The C3 axis module includes a C3 motor and a third rotating component. The output shaft of the C3 motor is rotatably disposed in the left mounting hole, and the third rotating component is located in the left mounting hole and is fixedly connected to the output shaft of the C3 motor.

[0009] Preferably, the second rotating component is provided with a left support cylinder and a right support cylinder at the positions corresponding to the left and right assembly holes, respectively. The opening of the left support cylinder faces downward and the opening of the right support cylinder faces upward. The rotating body of the A-axis module is provided with a connecting cylinder with the opening facing downward. The connecting cylinder is fitted onto the right support cylinder in a rotatable manner. The C2 motor is fixed to the upper end of the connecting cylinder and the C3 motor is fixed to the upper end of the left support cylinder.

[0010] Preferably, the third rotating component has an assembly cylinder and a mounting plate extending radially outward from the bottom of the assembly cylinder. The assembly cylinder is rotatably fitted into the left assembly hole, and the output shaft of the C3 motor is fixedly installed inside the assembly cylinder.

[0011] Preferably, a W-axis module is provided between the laser cutting head and the rotating body of the C3 axis module. The W-axis module is a linear motion module, which is used to drive the laser cutting head to move up and down.

[0012] Preferably, the connecting cylinder is flush with the upper end of the left support cylinder.

[0013] Preferably, the C-axis module includes a C-axis motor and a first rotating component, wherein the C-axis motor is fixedly mounted on the sliding body of the Z-axis module, the first rotating component is fixedly connected to the output shaft of the C-axis motor, and the A-axis module includes an A-axis motor fixedly mounted on the first rotating component.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. When small contour cutting is required on a sheet metal part, only the C2 axis module and the C3 axis module need to work together to achieve small contour cutting. This process does not require the X-axis module, Y-axis module, Z-axis module, A-axis module and C-axis module to participate in the movement. The cutting motion has a smaller moment of inertia, which can significantly improve the work efficiency of small contour cutting.

[0016] 2. The assembly connection structure between the C2 axis module and the C3 axis module is reasonably designed, has good reliability, and has the technical advantages of convenient installation and high parallelism of the rotation centers of each part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the working principle of a laser cutting machine tool.

[0018] Figure 2 This is a partial sectional view of a laser cutting machine tool at the C2, C3, C, and A axes.

[0019] Figure 3 This is a partially exploded schematic diagram to show the connection relationship between the second rotating component 7b, the third rotating component, and the rotating body 4b of the A-axis module 4. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] like Figure 1 and 2 As shown, a laser cutting machine tool includes an X-axis module 1, a Y-axis module 2, a Z-axis module 3, an A-axis module 4, a C-axis module 5, a laser cutting head 6, a C2-axis module 7, and a C3-axis module 8. The X-axis module 1, Y-axis module 2, and Z-axis module 3 are existing linear motion modules and will not be described further here. The A-axis module 4, C-axis module 5, C2-axis module 7, and C3-axis module 8 are all rotary motion modules. C-axis module 5 is fixed on the sliding body 3a of Z-axis module 3, A-axis module 4 is fixed on the rotating body of C-axis module 5, C2-axis module 7 is fixedly installed on the rotating body of A-axis module 4, C3-axis module 8 is fixedly installed on the rotating body of C2-axis module 7, and the rotation center lines of C2-axis module 7, C3-axis module 8 and C-axis module 5 are all parallel to the sliding direction of Z-axis module 3. Laser cutting head 6 is fixedly installed on the rotating body of C3-axis module 8.

[0022] Based on the above machine tool structure, the arrangement of X-axis module 1, Y-axis module 2, Z-axis module 3, A-axis module 4, and C-axis module 5 enables the laser cutting head 6 to perform large-contour cutting on large-size plates. Since C2-axis module 7 can drive C3-axis module 8 to rotate, and C3-axis module 8 can drive the laser cutting head 6 to rotate, and the rotation center lines of each part are parallel, when small-contour cutting such as drilling small holes is required on the plate, only the coordinated movement of C2-axis module 7 and C3-axis module 8 is needed to achieve small-contour cutting. This process does not require X-axis module 1, Y-axis module 2, Z-axis module 3, A-axis module 4, and C-axis module 5 to participate in the movement; they only need to remain stationary. This results in smaller moment of inertia during small-contour cutting, thereby improving processing efficiency.

[0023] Furthermore, for example Figure 2 As shown, the C-axis module 5 includes a C-axis motor 5a and a first rotating component 5b. The C-axis motor 5a is fixedly mounted on the sliding body 3a of the Z-axis module 3, and the first rotating component 5b is fixedly connected to the output shaft c of the C-axis motor 5a. The rotating body of the C-axis module 5 is the whole consisting of the first rotating component 5b and the output shaft c.

[0024] The A-axis module 4 includes an A-axis motor 4a and a fourth rotating component 4b. The A-axis motor 4a is fixedly mounted on the first rotating component 5b, and the fourth rotating component 4b is fixedly connected to the output shaft d of the A-axis motor 4a. The rotating body of the A-axis module 4 is the whole consisting of the fourth rotating component 4b and the output shaft d.

[0025] The C2 axis module 7 includes a C2 motor 7a and a second rotating component 7b. The C2 motor 7a is fixedly mounted on the fourth rotating component 4b, and the second rotating component 7b is fixedly connected to the output shaft b of the C2 motor 7a. The rotating body of the C2 axis module 7 is the whole consisting of the second rotating component 7b and the output shaft b.

[0026] The C3 axis module 8 includes a C3 motor 8a and a third rotating component 8b. The C3 motor 8a is fixedly mounted on the second rotating component 7b, and the third rotating component 8b is fixedly connected to the output shaft a of the C3 motor 8a. The rotating body of the C3 axis module 8 is the whole consisting of the third rotating component 8b and the output shaft a.

[0027] For example Figure 2 and 3 As shown, the second rotating component 7b has a left support cylinder 7b3 and a right support cylinder 7b4 distributed at both ends. The left support cylinder 7b3 has a left mounting hole 7b1 with its opening facing downwards, and the right support cylinder 7b4 has a right mounting hole 7b2 with its opening facing upwards. The center lines of the left mounting hole 7b1 and the right mounting hole 7b2 are parallel to each other. The output shaft b of the C2 motor 7a is fixedly installed in the right mounting hole 7b2, and the output shaft a of the C3 motor 8a is rotatably installed in the left mounting hole 7b1. The third rotating component 8b is located in the left mounting hole 7b1 and is fixedly connected to the output shaft a of the C3 motor 8a.

[0028] Furthermore, combined Figure 3 As can be seen, the fourth rotating component 4b of the A-axis module 4 is provided with a downward-facing connecting cylinder 4b1, which is rotatably fitted onto the right support cylinder 7b4. The third rotating component 8b of the C3-axis module 8 has an upward-facing assembly cylinder 8b1, which is rotatably fitted into the left assembly hole 7b1. The C2 motor 7a is fixed to the upper end of the connecting cylinder 4b1, and the C3 motor 8a is fixed to the upper end of the left support cylinder 7b3. The technical advantages of the above assembly structure are: during assembly, with the second rotating component 7b as the reference, the third rotating component 8b is assembled from bottom to top on the left end, and the fourth rotating component 4b is assembled from top to bottom on the right end. This not only has the technical advantage of convenient assembly, but also ensures the parallelism of the rotation center lines of the C2-axis module 7 and the C3-axis module 8.

[0029] After the product is assembled, the upper ends of the connecting cylinder 4b1 and the left support cylinder 7b3 are flush. This design can maintain the appearance quality of the product after assembly.

[0030] In this embodiment, the laser cutting head 6 is mounted on the rotating body of the C3 axis module 8 via the W-axis module 9. The W-axis module 9 is a linear motion module used to drive the laser cutting head 6 to move up and down. When the object being laser-cut is a curved sheet material, the W-axis module 9 drives the laser cutting head 6 to move up and down, ensuring that the distance between the laser cutting head 6 and the surface of the object being laser-cut remains constant, which helps to ensure cutting quality. Specifically, the W-axis module 9 is configured such that the bottom of the assembly cylinder 8b1 of the third rotating component 8b is provided with a mounting plate 8b2 extending radially outward, and the W-axis module 9 is installed between the laser cutting head 6 and the mounting plate 8b2.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A laser cutting machine tool capable of rapid cutting of small spatial contours, comprising an X-axis module (1), a Y-axis module (2), a Z-axis module (3), an A-axis module (4), a C-axis module (5), and a laser cutting head (6), wherein, The C-axis module (5) is fixed on the sliding body (3a) of the Z-axis module (3), and the A-axis module (4) is fixed on the rotating body of the C-axis module (5), characterized in that: It also includes a C2 axis module (7) and a C3 axis module (8). The C2 axis module (7) is fixedly installed on the rotating body of the A axis module (4). The C3 axis module (8) is fixedly installed on the rotating body of the C2 axis module (7). The rotation center lines of the C2 axis module (7), the C3 axis module (8) and the C axis module (5) are all parallel to the sliding direction of the Z axis module (3). The laser cutting head (6) is fixedly installed on the rotating body of the C3 axis module (8). The C2 axis module (7) includes a C2 motor (7a) and a second rotating component (7b). The second rotating component (7b) is provided with a left support cylinder (7b3) and a right support cylinder (7b4). The left support cylinder (7b3) and the right support cylinder (7b4) are respectively provided with a left assembly hole (7b1) and a right assembly hole (7b2) with parallel center lines. The opening of the left support cylinder (7b3) faces downward and the opening of the right support cylinder (7b4) faces upward. The rotating body of the A axis module (4) is provided with a connecting cylinder (4b1) with the opening facing downward. The connecting cylinder (4b1) is fitted onto the right support cylinder (7b4) in a rotatable manner. The C2 motor (7a) is fixed at the upper end of the connecting cylinder (4b1). The output shaft of the C2 motor (7a) is fixedly installed in the right assembly hole (7b2) of the right support cylinder (7b4). The C3 axis module (8) includes a C3 motor (8a) and a third rotating component (8b). The third rotating component (8b) has an assembly cylinder (8b1). The assembly cylinder (8b1) is rotatably fitted into the left assembly hole (7b1) of the left support cylinder (7b3). The C3 motor (8a) is fixed at the upper end of the left support cylinder (7b3). The output shaft of the C3 motor (8a) is fixedly installed inside the assembly cylinder (8b1).

2. The laser cutting machine tool capable of rapid cutting of small spatial contours according to claim 1, characterized in that: The bottom of the assembly cylinder (8b1) is provided with a mounting plate (8b2) that extends radially outward.

3. The laser cutting machine tool capable of rapid cutting of small spatial contours according to claim 1, characterized in that: A W-axis module (9) is provided between the laser cutting head (6) and the rotating body of the C3 axis module (8). The W-axis module (9) is a linear motion module, which is used to drive the laser cutting head (6) to move up and down.

4. The laser cutting machine tool capable of rapid cutting of small spatial contours according to claim 2, characterized in that: The upper end of the connecting cylinder (4b1) is flush with the upper end of the left support cylinder (7b3).

5. The laser cutting machine tool capable of rapid cutting of small spatial contours according to claim 1, characterized in that: The C-axis module (5) includes a C-axis motor (5a) and a first rotating component (5b). The C-axis motor (5a) is fixedly mounted on the sliding body (3a) of the Z-axis module (3), and the first rotating component (5b) is fixedly connected to the output shaft of the C-axis motor (5a). The A-axis module (4) includes an A-axis motor (4a) fixedly mounted on the first rotating component (5b).

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