CN216576097U - Automatic following system for laser gun heads - Google Patents
Automatic following system for laser gun heads Download PDFInfo
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- CN216576097U CN216576097U CN202122645111.6U CN202122645111U CN216576097U CN 216576097 U CN216576097 U CN 216576097U CN 202122645111 U CN202122645111 U CN 202122645111U CN 216576097 U CN216576097 U CN 216576097U
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Abstract
The laser cutting device comprises a laser gun head, a driving part and a compensation motion mechanism, the driving part is connected with the compensation motion mechanism in a driving mode, the compensation motion mechanism is connected with the laser gun head in a driving mode, a capacitance sensor used for collecting distance data from the laser gun head to the surface of a workpiece is arranged at one end of the laser gun head, and the control device is electrically connected with the laser gun head, the driving part and the capacitance sensor respectively. According to the utility model, the capacitance sensor on the laser gun head is utilized to acquire the distance data from the laser gun head to the surface of the workpiece, then the actual distance between the laser gun head and the surface of the workpiece is obtained through system calculation, and then the servo motor is utilized to automatically compensate the height of the laser gun head, so that the problem that the curved surface of the workpiece can cause the focus to fluctuate up and down on the surface of the workpiece, so that the surface of the workpiece is heated unevenly to influence the processing technology during processing is solved.
Description
Technical Field
The utility model particularly relates to an automatic following system of a laser gun head.
Background
At present, most of laser gun heads in the industry are fixed, and the laser gun heads need to move by means of workpiece movement or moving on the gun heads to realize parallel relative displacement, so that for the surface of a workpiece with a curve, the laser has a focal length problem, and the curved surface can cause the focal length to fluctuate up and down on the surface of the workpiece (the distance between the laser gun heads and the surface of the workpiece during laser cutting (namely the distance between the laser gun heads and the surface of the workpiece in the vertical direction or the height distance between the laser gun heads and the surface of the workpiece during laser cutting) needs to be kept consistent all the time.
Therefore, further improvements are necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the automatic laser gun head following system which is simple in structure, can realize height compensation, can uniformly heat the surface of a workpiece and is high in practicability, so that the defects in the prior art are overcome.
The automatic system of following of laser rifle head according to this purpose design, including laser cutting device and controlling means, laser cutting device includes the laser rifle head, its characterized in that: the laser cutting device further comprises a driving part and a compensation motion mechanism, the driving part is connected with the compensation motion mechanism in a driving mode, the compensation motion mechanism is connected with the laser gun head in a driving mode, a capacitance sensor used for collecting distance data from the laser gun head to the surface of a workpiece is arranged at one end of the laser gun head, and the control device is electrically connected with the laser gun head, the driving part and the capacitance sensor respectively.
The laser cutting device is arranged on the arm of the six-axis robot.
The compensation motion mechanism comprises a lead screw and a sliding block, the sliding block is sleeved on the lead screw, the driving part is a servo motor, the servo motor is in driving connection with the lead screw, and the sliding block is in driving connection with the laser gun head.
The laser gun head comprises a laser gun head body and a water-cooling circulating part, the water-cooling circulating part is connected to one side of the laser gun head body, a laser head is arranged at one end of the laser gun head body, and an optical fiber interface is arranged at the other end of the laser gun head body.
The capacitance sensor is arranged on the laser head.
And a connecting plate is arranged on the outer side of the motion compensation mechanism, the sliding block is connected with the connecting plate, and the connecting plate is connected with the water-cooling circulating part.
And the arms of the six-axis robot are provided with connecting blocks, and the connecting blocks are connected with the compensation motion mechanism.
According to the utility model, a capacitance sensor on the laser gun head is utilized to collect distance data from the laser gun head to the surface of a workpiece, then the actual distance (namely the height distance between the laser gun head and the workpiece surface) between the laser gun head and the workpiece surface is obtained through system calculation, and then the height of the laser gun head is automatically compensated by using a servo motor, so that the actual distance from the laser gun head to the surface of the workpiece during laser cutting is always consistent with the distance required by the laser cutting, and the problem that the processing technology is influenced due to uneven heating of the surface of the workpiece during processing caused by fluctuation of the focal length on the surface of the workpiece due to the curved surface of the workpiece is solved.
Drawings
Fig. 1 is a schematic diagram of an overall structure of an auto-follow system according to an embodiment of the present invention.
Fig. 2 is a schematic overall structure diagram of a laser cutting device according to an embodiment of the present invention.
Fig. 3 is a schematic overall structure diagram of another aspect of the laser cutting apparatus according to an embodiment of the present invention.
FIG. 4 is a control schematic diagram of an auto-follow system according to an embodiment of the present invention.
Detailed Description
The utility model is further described with reference to the following figures and examples.
Referring to fig. 1-4, the automatic laser gun head tracking system comprises a laser cutting device a and a control device, wherein the laser cutting device a comprises a laser gun head 1, a driving part 2 and a compensation motion mechanism 3, the driving part 2 is in driving connection with the compensation motion mechanism 3, the compensation motion mechanism 3 is in driving connection with the laser gun head 1, one end of the laser gun head 1 is provided with a capacitance sensor 4 for collecting distance data from the laser gun head 1 to the surface of a workpiece, and the control device is electrically connected with the laser gun head 1, the driving part 2 and the capacitance sensor 4 respectively.
The laser cutting machine further comprises a six-axis robot 5, and the laser cutting device a is installed on the arm of the six-axis robot 5. The six-axis robot 5 can drive the laser cutting device a to rotate in the direction, the laser cutting device a in fig. 1 is horizontally placed, and when laser cutting (carving) is carried out, the six-axis robot 5 can turn over the laser cutting device a to be vertically placed, namely the placing direction of the laser cutting device a shown in fig. 3.
The compensation motion mechanism 3 comprises a lead screw and a slide block, the slide block is sleeved on the lead screw, the driving part 2 is a servo motor, the servo motor is in driving connection with the lead screw, and the slide block is in driving connection with the laser gun head 1; when the compensation motion mechanism 3 compensates the height of the laser gun head 1, the servo motor drives the screw rod to rotate, and according to the motion principle of the screw rod, when the screw rod 6 rotates, the sliding block moves linearly on the screw rod 6 (the sliding block is in threaded fit with the screw rod 6), so that the laser gun head 1 is driven to move up and down.
The laser gun head 1 comprises a laser gun head body 8 and a water-cooling circulating part 9, wherein the water-cooling circulating part 9 is connected to one side of the laser gun head body 8, one end of the laser gun head body 8 is provided with a laser head 10, and the other end of the laser gun head body 8 is provided with an optical fiber interface 11; the water-cooling circulation component 9 is used for cooling the laser gun head 1 during laser cutting, and the optical fiber interface 11 is used for transmitting the light source to the laser gun head 1 through the optical fiber, so that the laser gun head 1 can obtain laser required by cutting.
The capacitive sensor 4 is disposed on the laser head 10.
The compensating motion mechanism 3 further comprises a shell 13, a lead screw and a sliding block are arranged inside the shell 13, a connecting plate 14 is arranged on the outer side of the compensating motion mechanism 3, the connecting plate 14 is connected to one side of the shell 13, one end of the sliding block penetrates through the shell 13 and then is connected with the connecting plate 14, and the connecting plate 14 is connected with the water-cooling circulating component 9.
The arm of the six-axis robot 5 is provided with a connecting block 12, and the connecting block 12 is connected with a shell 13 of the compensation motion mechanism 3.
The control method of the laser gun head automatic following system comprises the following steps:
A. after the automatic following system is initialized, inputting a distance required by laser cutting (namely a theoretical distance from a laser gun head 1 to the surface of a workpiece), then starting to operate the automatic following system, and detecting the distance between the laser gun head 1 and the surface of the workpiece by a capacitance sensor 4 when the laser gun head 1 moves and acquiring the distance data;
B. the capacitance sensor 4 sends the acquired distance data to the control device, the control device calculates the actual distance between the laser gun head 1 and the surface of the workpiece, and then the actual distance is compared with the distance required by laser cutting to obtain a compensation distance;
C. the control device controls the driving part 2 to start, and the driving part 2 drives the laser gun head 1 to move by the compensation distance (namely, the compensation distance is moved) so as to compensate the height of the laser gun head 1.
The six-axis robot 5 of the automatic laser gun head following system can drive the laser gun head 1 to move horizontally and linearly so as to cut (carve) a workpiece by laser, meanwhile, the compensation motion mechanism 3 can drive the laser gun head 1 to move vertically and linearly so as to enable the laser gun head 1 to move along a curve (the horizontal linear motion and the vertical linear motion are mixed to form a curve motion) when cutting, thus the laser gun head 1 can move along a curve along a curved surface track of the surface of the workpiece when cutting the workpiece by laser, the motion track of the laser gun head 1 is consistent with the curved surface track of the surface of the workpiece, the actual distance from the laser gun head 1 to the surface of the workpiece is consistent with the required distance of laser cutting all the time, namely, the distance from the laser gun head 1 to the surface of the workpiece is consistent all the time, and the problem that the curved surface of the workpiece can cause the focal length to fluctuate up and down on the surface of the workpiece is solved, the problem that the surface of a workpiece is unevenly heated during processing to influence the processing technology is caused.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be protected by the following claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an automatic system of following of laser rifle head, includes laser cutting device (a) and controlling means, and laser cutting device (a) includes laser rifle head (1), its characterized in that: the laser cutting device (a) further comprises a driving part (2) and a compensation motion mechanism (3), the driving part (2) is in driving connection with the compensation motion mechanism (3), the compensation motion mechanism (3) is in driving connection with the laser gun head (1), one end of the laser gun head (1) is provided with a capacitance sensor (4) used for collecting distance data from the laser gun head (1) to the surface of a workpiece, and the control device is respectively and electrically connected with the laser gun head (1), the driving part (2) and the capacitance sensor (4);
the laser gun head (1) comprises a laser gun head body (8) and a water-cooling circulating part (9), the water-cooling circulating part (9) is connected to one side of the laser gun head body (8), one end of the laser gun head body (8) is provided with a laser head (10), and the other end of the laser gun head body (8) is provided with an optical fiber interface (11);
and a connecting plate (14) is arranged on the outer side of the motion compensation mechanism (3), the sliding block is connected with the connecting plate (14), and the connecting plate (14) is connected with the water-cooling circulating part (9).
2. The laser torch head auto-follow system according to claim 1, wherein: the laser cutting machine further comprises a six-axis robot (5), and the laser cutting device (a) is mounted on an arm of the six-axis robot (5).
3. The laser torch head auto-follow system according to claim 2, wherein: the compensation motion mechanism (3) comprises a lead screw and a sliding block, the sliding block is sleeved on the lead screw, the driving part (2) is a servo motor, the servo motor is in driving connection with the lead screw, and the sliding block is in driving connection with the laser gun head (1).
4. The laser torch head auto-follow system according to claim 3, wherein: the capacitance sensor (4) is arranged on the laser head (10).
5. The laser torch head auto-follow system according to claim 4, wherein: the arm of the six-axis robot (5) is provided with a connecting block (12), and the connecting block (12) is connected with the compensation motion mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122645111.6U CN216576097U (en) | 2021-11-01 | 2021-11-01 | Automatic following system for laser gun heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122645111.6U CN216576097U (en) | 2021-11-01 | 2021-11-01 | Automatic following system for laser gun heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216576097U true CN216576097U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122645111.6U Active CN216576097U (en) | 2021-11-01 | 2021-11-01 | Automatic following system for laser gun heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216576097U (en) |
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2021
- 2021-11-01 CN CN202122645111.6U patent/CN216576097U/en active Active
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