A three-dimensional laser small circle cutting system

Abstract

The present invention discloses a three-dimensional laser small circle cutting system, comprising a base plate, a cross slide assembly and a rotary drive mechanism are arranged on the base plate, a linear slide which can slide on the cross slide assembly is arranged on the cross slide assembly, a slider is arranged at the output end of the rotary drive mechanism, a cavity is arranged in the slider, a moving block and a fixing assembly for fixing the moving block in the cavity are arranged in the cavity, a rotating shaft is connected to the moving block, and a connecting rod is also included, one end of the connecting rod is connected to the rotating shaft, and the other end of the connecting rod is mounted on the linear slide and can be driven to move by the linear slide, a mounting plate is arranged at the front end of the linear slide, and a laser head is arranged on the mounting plate. The structure can realize high-precision circular hole processing through special design, and the diameter of the cut small circle can be accurately adjusted through the design of the linear slide, and it is not easily affected by the outside world.

Description

Technical Field

[0001] The invention relates to the field of cutting devices, and in particular to a three-dimensional laser small circle cutting system. Background Art

[0002] At present, laser cutting machines are mostly used in the cutting field. There are two main circular cutting methods. One is to install the laser cutting machine on a six-axis robot, and the six-axis robot performs three-dimensional cutting. However, this method has poor accuracy, especially when processing small holes. The hole accuracy and hole roundness cannot meet the requirements of precision processing, and the robot's accuracy requirements are relatively high. This will increase costs on the one hand, and the processing accuracy cannot meet the process requirements on the other hand.

[0003] The second method is that the laser cutting machine does not move. The fixture at the bottom of the laser cutting machine drives the product to rotate, so that the cutting machine can make circular cutting. However, this method also cannot meet the requirements of small circle cutting and cannot guarantee cutting accuracy. Summary of the invention

[0004] The technical problem solved by the invention is to provide a three-dimensional laser small circle cutting system which can improve the cutting accuracy.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a three-dimensional laser small circle cutting system, comprising a base plate, a cross slide assembly and a rotary drive mechanism are arranged on the base plate, a linear slide that can slide on the cross slide assembly is arranged on the cross slide assembly, a slider is arranged at the output end of the rotary drive mechanism, a cavity is arranged in the slider, a moving block and a fixing assembly that fixes the moving block in the cavity are arranged in the cavity, a rotating shaft is connected to the moving block, and also includes a connecting rod, one end of the connecting rod is connected to the rotating shaft, and the other end of the connecting rod is installed on the linear slide and can be driven to move by the linear slide;

[0006] A mounting plate is arranged at the front end of the linear slide, and a laser head is arranged on the mounting plate.

[0007] Furthermore, the upper part of the cavity is a dovetail groove, the lower part of the cavity is a square groove, and the moving block is a trapezoidal structure that can cooperate with the dovetail groove.

[0008] Furthermore, the rotary drive mechanism includes a rotary table connected to the slider and a rotary motor driving the rotary table to rotate;

[0009] An origin detection sensor is provided on one side of the rotating motor, and a detection piece for providing a detection signal to the origin detection sensor is provided on the rotating motor.

[0010] Furthermore, a mounting shell is arranged on the bottom plate, a robot mounting plate is arranged on the top of the mounting shell, and a six-axis robot is also included, wherein the driving end of the six-axis robot is mounted on the robot mounting plate.

[0011] Furthermore, the cross slide assembly includes an X-axis slide rail, an X-axis slider that can slide along the X-axis slide rail is provided on the X-axis slide rail, a Y-axis slider is fixedly connected to the X-axis slider, a Y-axis slide rail that can slide along the Y-axis slider is provided on the Y-axis slider, and the linear slide is fixedly connected to the Y-axis slide rail.

[0012] Furthermore, the fixing assembly includes a fixing block located in the square groove, and also includes a fixing cylinder, and the output shaft of the fixing cylinder passes through the rotating table and the sliding block and is connected to the bottom of the fixing block.

[0013] The beneficial effects of the present invention are as follows: the structure can realize high-precision round hole processing through special design, and the diameter of the cut small circle can be accurately adjusted through the design of the linear slide, and it is not easily affected by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

[0015] Figure 2 This is a complete structural schematic diagram of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

[0016] Figure 3 This is a schematic diagram of the slider structure of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

[0017] Figure 4 This is a schematic structural diagram of a cross slide assembly of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

[0018] The markings in the figure are: 1. Base plate; 2. Cross slide assembly; 21. X-axis slide rail; 22. X-axis slider; 23. Y-axis slide rail; 24. Y-axis slider; 3. Rotating motor; 4. Linear slide; 5. Slider; 6. Dovetail groove; 7. Square groove; 8. Moving block; 9. Rotating shaft; 10. Connecting rod; 11. Mounting plate; 12. Laser head; 13. Rotating table; 14. Origin detection sensor; 15. Detection sheet; 16. Robot mounting plate; 17. Fixed block; 18. Fixed cylinder. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1 As shown, the embodiment of the present application discloses a three-dimensional laser small circle cutting system, and its structure includes a base plate 1. A cross slide assembly 2 and a rotary drive mechanism are arranged on the base plate 1, and a linear slide 4 that can slide on the cross slide assembly 2 is arranged on the cross slide assembly 2, and a slider 5 is arranged at the output end of the rotary drive mechanism, and a cavity is arranged in the slider 5, and a moving block 8 and a fixing assembly that fixes the moving block 8 in the cavity are arranged in the cavity, and a rotating shaft 9 is connected to the moving block 8, and also includes a connecting rod 10, one end of the connecting rod 10 is connected to the rotating shaft 9, and the other end of the connecting rod 10 is installed on the linear slide 4 and can be driven to move by the linear slide 4, and a mounting plate 11 is arranged at the front end of the linear slide 4, and a laser head 12 is arranged on the mounting plate 11.

[0023] Specifically, the rotating shaft 9 and the connecting rod 10 are rotatably connected, that is, the rotating shaft 9 is inserted into the connecting rod 10 and can rotate inside the connecting rod 10 .

[0024] During specific operation, according to the required diameter of the small circle to be cut, the linear slide 4 controls the connecting rod 10 to make a linear motion, thereby driving the rotating shaft 9 to slide in the cavity of the slider 5 through the connecting rod 10, that is, adjusting the distance of the rotating shaft 9 relative to the rotation center of the rotary drive mechanism, which is the radius for cutting the small circle. After the adjustment is completed, the moving block 8 is fixed by the fixing assembly to prevent the moving block 8 from sliding. When cutting, the rotary drive mechanism drives the slider 5 to rotate, and the slider 5 drives the rotating shaft 9 to perform a circular motion. The rotating shaft 9 transmits the circular motion to the mounting plate 11 at the front end of the linear slide 4 through the connecting rod 10 and the cross slide assembly 2, so that the laser head 12 installed on the mounting plate 11 can achieve small circle cutting. Specifically, the diameter of the small circle cut in this application is less than 35 mm.

[0025] Through the arrangement of the above-mentioned structure, the present application can achieve precise control of the cutting diameter of the small circle because the distance of the rotating shaft 9 relative to the rotation center of the rotating drive mechanism can be adjusted. At the same time, when the rotating drive mechanism is driven to rotate, no movement or shaking will occur after rotation, so that the precise circular motion of the rotating shaft 9 is transmitted to the laser head 12, so that the laser head 12 can achieve precise circular cutting, especially for small circle cutting.

[0026] In this embodiment, Figure 3 As shown, the upper part of the cavity is a dovetail groove 6, the lower part of the cavity is a square groove 7, and the movable block 8 is a trapezoidal structure that can cooperate with the dovetail groove 6; the fixed component includes a fixed block 17 located in the square groove 7, and also includes a fixed cylinder 18, and the output shaft of the fixed cylinder 18 passes through the rotating table 13 and the slider 5 and is connected to the bottom of the fixed block 17.

[0027] When adjusting the small circle cutting diameter, the fixed cylinder 18 drives the fixed block 17 to move downward, so that the movable block 8 can move in the dovetail groove 6. When it moves into place, the fixed cylinder 18 drives the fixed block 17 to move toward each other, pressing the movable block 8 in the dovetail groove 6, so that the movable block 8 will not move in subsequent work.

[0028] The trapezoidal structure of the dovetail groove 6 of the cavity and the movable block 8 can ensure that the movable block 8 will not fall off from the cavity, and can also ensure the stability of the movement of the movable block 8 in the dovetail groove 6, so that the movable block 8 will not shake left and right, etc. At the same time, the setting of the movable block 8 can fix the movable block 8 after the rotating shaft 9 moves into place, thereby ensuring the accuracy of subsequent small circle cutting.

[0029] In this embodiment, the rotation driving mechanism includes a rotating table 13 connected to the slider 5 and a rotating motor 3 driving the rotating table 13 to rotate;

[0030] An origin detection sensor 14 is provided on one side of the rotary motor 3 , and a detection piece 15 for providing a detection signal to the origin detection sensor 14 is provided on the rotary motor 3 .

[0031] The origin detection sensor 14 may be a photoelectric sensor or a laser sensor.

[0032] Every time the rotary drive mechanism drives the rotating table 13 to rotate one circle, the origin detection sensor 14 will receive a blocking signal from the detection sheet 15. The origin detection sensor 14 can be connected to an external control module to expand functions such as origin reset and circular cutting counting.

[0033] In this embodiment, a mounting shell is disposed on the base plate 1 , a robot mounting plate 16 is disposed on the top of the mounting shell, and a six-axis robot is also included, wherein the driving end of the six-axis robot is mounted on the robot mounting plate 16 .

[0034] The arrangement of the above-mentioned six-axis robot enables the structure to realize not only small circle cutting, but also special-shaped hole, straight line, curve and other trajectory processing, which greatly improves the processing accuracy and production efficiency.

[0035] In this embodiment, Figure 4 As shown, the cross slide assembly 2 includes an X-axis slide rail 21, an X-axis slider 22 that can slide along the X-axis slide rail 21 is provided on the X-axis slide rail 21, a Y-axis slider 24 is fixedly connected to the X-axis slider 22, a Y-axis slide rail 23 that can slide along the Y-axis slider 24 is provided on the Y-axis slider 24, and the linear slide 4 is fixedly connected to the Y-axis slide rail 23.

[0036] The above-mentioned structural arrangement enables the linear slide 4 to move freely in two-dimensional space, thereby ensuring the smoothness and stability of the laser head 12 when performing circular cutting.

[0037] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional laser small circle cutting system, characterized in that: The invention comprises a base plate (1), wherein a cross slide assembly (2) and a rotary drive mechanism are arranged on the base plate (1), wherein a linear slide (4) which can slide on the cross slide assembly (2) is arranged on the cross slide assembly (2), wherein a slider (5) is arranged at the output end of the rotary drive mechanism, wherein a cavity is arranged in the slider (5), wherein a moving block (8) and a fixing assembly which fixes the moving block (8) in the cavity are arranged in the cavity, wherein a rotating shaft (9) is connected to the moving block (8), and further comprises a connecting rod (10), wherein one end of the connecting rod (10) is connected to the rotating shaft (9), and the other end of the connecting rod (10) is mounted on the linear slide (4) and can be driven to move by the linear slide (4); A mounting plate (11) is provided at the front end of the linear slide (4), and a laser head (12) is provided on the mounting plate (11). The upper part of the cavity is a dovetail groove (6), the lower part of the cavity is a square groove (7), and the moving block (8) is a trapezoidal structure that can cooperate with the dovetail groove (6). The fixing assembly comprises a fixing block (17) located in the square groove (7), and also comprises a fixing cylinder (18), wherein the output shaft of the fixing cylinder (18) passes through the rotating table (13) and the sliding block (5) and is connected to the bottom of the fixing block (17). The rotary drive mechanism comprises a rotary table (13) connected to the slider (5) and a rotary motor (3) for driving the rotary table (13) to rotate. An origin detection sensor (14) is provided on one side of the rotating motor (3), and a detection piece (15) for providing a detection signal to the origin detection sensor (14) is provided on the rotating motor (3). The cross slide assembly (2) comprises an X-axis slide rail (21), an X-axis slider (22) which can slide along the X-axis slide rail (21) is arranged on the X-axis slide rail (21), a Y-axis slider (24) is fixedly connected to the X-axis slider (22), a Y-axis slide rail (23) which can slide along the Y-axis slider (24) is arranged on the Y-axis slider (24), and the linear slide (4) is fixedly connected to the Y-axis slide rail (23).

2. The three-dimensional laser small circle cutting system according to claim 1, characterized in that: The base plate (1) is provided with a mounting shell, the top of which is provided with a robot mounting plate (16), and further comprises a six-axis robot, wherein the driving end of the six-axis robot is mounted on the robot mounting plate (16).

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