CN114289862A - Three-dimensional laser small circle cutting system - Google Patents

Abstract

The invention discloses a three-dimensional laser small circle cutting system, which comprises a bottom plate, wherein a cross sliding table assembly and a rotary driving mechanism are arranged on the bottom plate, a linear sliding table capable of sliding on the cross sliding table assembly is arranged on the cross sliding table assembly, the output end of the rotary driving mechanism is provided with a sliding block, a cavity is arranged in the sliding block, 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 onto the moving block, the three-dimensional laser small circle cutting system also comprises a connecting rod, one end of the connecting rod is connected with the rotating shaft, the other end of the connecting rod is arranged on the linear sliding table and can be driven by the linear sliding table to move, the front end of the linear sliding table is provided with an installation plate, and a laser head is arranged on the installation plate. And is not easily affected by the outside.

Description

A three-dimensional laser small circle cutting system

technical field

The invention relates to the field of cutting devices, in particular to a three-dimensional laser small circle cutting system.

Background technique

At present, laser cutting machines are mostly used for cutting operations in the cutting field. There are two main circular cutting methods. One is: install the laser cutting machine on a six-axis robot, and the six-axis robot performs three-dimensional cutting, but this kind of The accuracy of the method is poor, especially when processing small holes, the hole accuracy and hole roundness cannot meet the needs of precision machining, and the accuracy requirements of the robot are relatively high. As a result, on the one hand, the cost will increase, and on the other hand, the machining accuracy cannot meet the process requirements.

The second is that the laser cutting machine does not move, and the jig at the bottom of the laser cutting machine drives the product to rotate, so that the cutting machine does circular cutting, but this method also cannot meet the requirements of small circle cutting, nor can it guarantee the cutting accuracy. .

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide a three-dimensional laser small circle cutting system which can improve the cutting precision.

The technical solution adopted by the present invention to solve the technical problem is as follows: a three-dimensional laser small circle cutting system, comprising a bottom plate, a cross slide assembly and a rotary drive mechanism are arranged on the bottom plate, and a cross slide assembly is provided with an adjustable A linear slide that slides on the cross slide assembly, the output end of the rotary drive mechanism is provided with a slide block, a cavity is set in the slide block, and a moving block is set in the cavity and the moving block is fixed in the cavity The fixed assembly, the moving block is connected with a rotating shaft, and also includes a connecting rod, one end of the connecting rod is connected with the rotating shaft, and the other end of the connecting rod is installed on the linear slide table and can be driven by the linear slide table to move;

The front end of the linear slide table is provided with a mounting plate, and the mounting plate is provided with a laser head.

Further, 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 be matched with the dovetail groove.

Further: the rotary drive mechanism includes a rotary table connected with the slider and a rotary motor for driving the rotary table to rotate;

An origin detection sensor is provided on one side of the rotary electric machine, and a detection piece for giving a detection signal to the origin detection sensor is provided on the rotary electric machine.

Further, a mounting shell is provided on the bottom plate, a robot mounting plate is provided on the top of the mounting shell, and a six-axis robot is further included, and the driving end of the six-axis robot is mounted on the robot mounting plate.

Further: the cross slide assembly includes an X-axis slide rail, the X-axis slide rail is provided with an X-axis slider that can slide along the X-axis slide rail, and the X-axis slider is fixedly connected with a Y-axis. A slider, the Y-axis slider is provided with a Y-axis slide rail that can slide along the Y-axis slider, and the linear slide table is fixedly connected to the Y-axis slide rail.

Further, the fixing assembly includes a fixing block located in the square groove, and also includes a fixing cylinder, the output shaft of the fixing cylinder is connected to the bottom of the fixing block through the rotary table and the sliding block.

The beneficial effects of the present invention are: the structure can realize the machining of high-precision round holes through special design, and at the same time, the diameter of the cutting circle can be precisely adjusted through the design of the linear slide table, and is not easily affected by the outside world.

Description of drawings

FIG. 1 is a schematic diagram of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a complete structure of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a slider of a three-dimensional laser small circle cutting system according to an embodiment of the present application.

4 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.

Marked as: 1. Bottom plate; 2. Cross slide assembly; 21. X-axis slide rail; 22, X-axis slide; 23, Y-axis slide; 24, Y-axis slide; 3, rotary motor; 4 , linear slide table; 5, slider; 6, dovetail groove; 7, square groove; 8, moving block; 9, rotating shaft; 10, connecting rod; 11, mounting plate; 12, laser head; 13, rotary table; 14 , origin detection sensor; 15, detection piece; 16, robot mounting plate; 17, fixed block; 18, fixed cylinder.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough 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 departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1 , an embodiment of the present application discloses a three-dimensional laser small circle cutting system, the structure of which includes a base plate 1 . The bottom plate 1 is provided with a cross slide assembly 2 and a rotary drive mechanism, the cross slide assembly 2 is provided with a linear slide 4 that can slide on the cross slide assembly 2, and the output end of the rotary drive mechanism is provided with There is a slider 5, a cavity is arranged in the slider 5, a moving block 8 and a fixing assembly for fixing the moving block 8 in the cavity are arranged in the cavity, the moving block 8 is connected with a rotating shaft 9, and also Including a connecting rod 10, one end of the connecting rod 10 is connected with the rotating shaft 9, the other end of the connecting rod 10 is installed on the linear sliding table 4 and can be driven by the linear sliding table 4 to move, and the front end of the linear sliding table 4 is provided with a mounting The board 11 is provided with a laser head 12 on the mounting board 11 .

Specifically, the above-mentioned 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 in the connecting rod 10 .

During the specific work, according to the diameter of the small circle to be cut, the linear slide table 4 controls the connecting rod 10 to perform linear motion, so that the connecting rod 10 drives the rotating shaft 9 to slide in the cavity of the slider 5, that is, the relative rotation of the rotating shaft 9 is adjusted. The distance from the rotation center of the drive mechanism, which is the radius of the small circle cutting. 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 sliding block 5 to rotate, the sliding block 5 drives the rotating shaft 9 to perform circular motion, and the rotating shaft 9 transmits the circular motion to the mounting plate at the front end of the linear sliding table 4 through the connecting rod 10 and the cross slide assembly 2. 11, so that the laser head 12 installed on the mounting plate 11 can realize small circle cutting, and specifically the diameter of the small circle cut in this application is less than 35 mm.

In the present application, through the arrangement of the above structure, since the distance of the rotating shaft 9 relative to the rotation center of the rotary driving mechanism can be adjusted, the precise control of the small circle cutting diameter can be realized, and at the same time, when the rotary driving mechanism is rotated, there will be no movement after rotation. and shaking, so as to be transmitted to the laser head 12 through the precise circular motion of the rotating shaft 9, so that the laser head 12 can realize precise circumferential cutting, especially for small circle cutting.

In this embodiment, as shown in FIG. 3 , 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 be matched with the dovetail groove 6 ; the fixed component It includes a fixed block 17 located in the square groove 7, and also includes a fixed cylinder 18, the output shaft of the fixed cylinder 18 is connected to the bottom of the fixed block 17 through the rotary table 13 and the slider 5.

When adjusting the diameter of the small circle cutting, the fixed cylinder 18 drives the fixed block 17 to move downward, so that the moving block 8 can move in the dovetail groove 6 . The block 8 is pressed in the dovetail groove 6, so that the moving block 8 will not move in the subsequent work.

The setting of the trapezoidal structure of the cavity dovetail groove 6 and the moving block 8 can ensure that the moving block 8 will not fall off from the cavity, and can also ensure the smoothness of the moving block 8 moving in the dovetail groove 6, so that the moving block 8 does not fall off. There will be left and right shaking, and at the same time, the setting of the moving block 8 can fix the moving block 8 after the rotating shaft 9 is moved in place, so as to ensure the accuracy of subsequent small circle cutting.

In this embodiment, the rotary drive mechanism includes 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 rotary electric machine 3 , and a detection piece 15 for giving a detection signal to the origin detection sensor 14 is provided on the rotary electric machine 3 .

The origin detection sensor 14 may be a photoelectric sensor, a laser sensor, or the like.

Every time the rotary drive mechanism drives the turntable 13 to rotate once, the origin detection sensor 14 will receive a blocking signal from the detection piece 15 once, and the origin detection sensor 14 can be connected with an external control module to expand the origin reset, ring cutting count, etc. Function.

In this embodiment, the base plate 1 is provided with a mounting shell, the top of the mounting shell is provided with a robot mounting plate 16 , and also includes a six-axis robot, and the driving end of the six-axis robot is mounted on the robot mounting plate 16 .

The setting of the above-mentioned six-axis robot enables the structure to realize the processing of special-shaped holes, straight lines, curves and other trajectories in addition to small circle cutting, which greatly improves the processing accuracy and production efficiency.

In this embodiment, as shown in FIG. 4 , the cross slide assembly 2 includes an X-axis slide rail 21 , and an X-axis slide rail 22 that can slide along the X-axis slide rail 21 is provided on the X-axis slide rail 21 . The X-axis slider 22 is fixedly connected with a Y-axis slider 24 , the Y-axis slider 24 is provided with a Y-axis sliding rail 23 that can slide along the Y-axis slider 24 , and the Y-axis sliding rail 23 is provided on the Y-axis slider 23 . The linear slide table 4 is fixedly connected.

The arrangement of the above structure can make the linear slide table 4 move freely in the two-dimensional space, so as to ensure the smoothness and stability of the laser head 12 for circular cutting.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a small circle cutting system of three-dimensional laser which characterized in that: the movable sliding table is characterized by comprising a base plate (1), wherein a cross sliding table assembly (2) and a rotary driving mechanism are arranged on the base plate (1), a linear sliding table (4) capable of sliding on the cross sliding table assembly (2) is arranged on the cross sliding table assembly (2), a sliding block (5) is arranged at the output end of the rotary driving mechanism, a cavity is arranged in the sliding block (5), a movable block (8) and a fixing assembly for fixing the movable block (8) in the cavity are arranged in the cavity, a rotating shaft (9) is connected onto the movable block (8), the movable sliding table further comprises a connecting rod (10), one end of the connecting rod (10) is connected with the rotating shaft (9), and the other end of the connecting rod (10) is installed on the linear sliding table (4) and can be driven to move by the linear sliding table (4);

the straight line slip table (4) front end is provided with mounting panel (11), be provided with laser head (12) on mounting panel (11).

2. The three-dimensional laser small circle cutting system of claim 1, wherein: the upper part of the cavity is provided with a dovetail groove (6), the lower part of the cavity is provided with a square groove (7), and the moving block (8) is of a trapezoidal structure matched with the dovetail groove (6).

3. The three-dimensional laser small circle cutting system of claim 2, wherein: the rotary driving mechanism comprises a rotary table (13) connected with the sliding block (5) and a rotary motor (3) for driving the rotary table (13) to rotate;

an origin detection sensor (14) is arranged on one side of the rotating motor (3), and a detection sheet (15) giving a detection signal of the origin detection sensor (14) is arranged on the rotating motor (3).

4. The three-dimensional laser small circle cutting system of claim 1, wherein: the robot is characterized in that an installation shell is arranged on the bottom plate (1), a robot installation plate (16) is arranged at the top of the installation shell, the robot further comprises six robots, and the driving ends of the six robots are installed on the robot installation plate (16).

5. The three-dimensional laser small circle cutting system of claim 1, wherein: cross slip table subassembly (2) includes X axle slide rail (21), be provided with on X axle slide rail (21) and follow gliding X axle slider (22) of X axle slide rail (21), fixedly connected with Y axle slider (24) on X axle slider (22), be provided with on Y axle slider (24) and follow gliding Y axle slide rail (23) of Y axle slider (24), fixedly connected with on Y axle slide rail (23) straight line slip table (4).

6. The three-dimensional laser small circle cutting system of claim 3, wherein: the fixed assembly comprises a fixed block (17) positioned in the square groove (7) and a fixed cylinder (18), and an output shaft of the fixed cylinder (18) penetrates through the rotating table (13) and the sliding block (5) to be connected with the bottom of the fixed block (17).

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