Clamping and adjusting device for laser galvanometer of laser welder

Abstract

The invention discloses a clamping and adjusting device for a laser galvanometer of a laser welder, and belongs to the field of clamping of the laser galvanometer. Comprising a transverse moving mechanism, and a vertical moving mechanism is arranged above the transverse moving mechanism; a cross arm is arranged in front of the vertical moving mechanism, and the front end of the cross arm is fixedly connected with a clamping mechanism; the clamping mechanism comprises an adjusting box, the adjusting box is of a hollow cuboid structure with an opening in the lower surface, two shaft columns are rotationally connected to the interior of the adjusting box, and gears are fixedly connected to the outer side walls of the shaft columns; a transverse moving mechanism in the device controls a reciprocating screw rod I to rotate by starting a motor II, and controls a screw rod sleeve I to slide to adjust the transverse use position of the device; the vertical moving mechanism controls a reciprocating screw rod II to rotate by starting a motor III, drives a screw rod sleeve II to slide, and adjusts the use height of the device; the device can be conveniently used at different positions.

Description

Technical Field

[0001] The invention relates to the field of laser galvanometer clamping, and in particular to a laser galvanometer clamping and adjusting device for a laser welder. Background Art

[0002] Laser welding machines can perform deposition, sealing, filling and other repair functions for wear, scratches, pinholes, cracks, defects, deformation, reduced hardness, sand holes and other defects of molds and metal workpieces. After repair, the substrate will not be deformed, annealed, undercut or have residual stress, and its metal structure state will not be changed. The repair accuracy is high. Laser galvanometers are needed in laser welding machines. The function of the laser galvanometer is to control the trajectory of the laser. The laser galvanometer must be stable during operation. If the galvanometer shakes, the trajectory of the laser will deviate, resulting in a significant reduction in the accuracy of the manufactured parts. When installing the laser galvanometer, the position of the galvanometer needs to be adjusted so that the galvanometer is directly above the molding surface, and the height of the galvanometer needs to be adjusted so that its bottom is at a specific distance from the molding surface. A clamping adjustment device is often required when installing the laser galvanometer.

[0003] Patent: CN218799815U relates to a laser galvanometer clamping and adjusting device for a laser welder, comprising an electric adjustment slide rail, a lifting rod is fixedly connected to the top of the electric adjustment slide rail, a square through hole is opened on one side of the lifting rod, a reciprocating motor is fixedly installed on the top of the lifting rod, the output end of the reciprocating motor passes through the lifting rod and is fixedly connected to a lifting screw, a moving rod is threadedly connected to the surface of the lifting screw, a laser galvanometer body is arranged below the moving rod through a laser welder galvanometer clamping and mounting mechanism, a latch, a telescopic spring, a slide rod and a laser galvanometer clamping block are provided, when the staff needs to disassemble the laser galvanometer body, the latch is removed, the telescopic spring in a compressed state returns to its original state, driving the slide rod and the laser galvanometer clamping block to move to both sides, and the staff can catch the laser galvanometer body below the laser galvanometer body, and the disassembly and assembly are very simple and convenient, which reduces the workload of the staff and improves the practicality of the design;

[0004] The clamping method in the above technology is complicated and needs to be positioned by a pin. It is also inconvenient to adjust the use angle of the laser galvanometer body after clamping, and needs to be improved. For this purpose, we propose a laser welder laser galvanometer clamping and adjustment device. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a simple clamping method; another purpose of the present invention is to provide a method for adjusting the angle of the laser galvanometer body after clamping.

[0006] Technical solution: A laser galvanometer clamping and adjusting device for a laser welder, comprising a lateral moving mechanism, wherein a vertical moving mechanism is arranged above the lateral moving mechanism;

[0007] A horizontal arm is arranged in front of the vertical moving mechanism, and a clamping mechanism is fixedly connected to the front end of the horizontal arm;

[0008] The clamping mechanism includes an adjusting box, which is a hollow rectangular structure with an opening on the lower surface. The adjusting box is rotatably connected to two shaft columns inside, and the outer walls of the shaft columns are fixedly connected to gears. A cross bar is fixedly connected to the lower part of the interior of the adjusting box, and the outer walls of the cross bar are slidably connected to two rotating parts. The inner side of the rotating part is rotatably connected to an arc-shaped telescopic part through a rotating shaft, the top of the arc-shaped telescopic part is fixedly connected to the outer wall of the shaft column, and the bottom of the rotating part is fixedly connected to an L-shaped clamping seat.

[0009] Furthermore, outer side walls of the two gears are meshingly connected.

[0010] Furthermore, a motor 1 is fixedly connected to the left side of the regulating box, and the right end of the output shaft of the motor 1 is fixedly connected to the left end of the shaft column located at the front of the inside of the regulating box.

[0011] Furthermore, the inner rear surface of the L-shaped clamping seat located behind the lower surface of the regulating box is rotatably connected to a clamping plate 1 via a rotating shaft.

[0012] Furthermore, the front surface of the L-shaped clamping seat located in front of the lower surface of the adjustment box is rotatably connected to a rotating rod via a rotating shaft, the rear end of the rotating rod is located on the inner side of the L-shaped clamping seat and is fixedly connected to a clamping plate 2, and the front end of the rotating rod is fixedly connected to a handheld disk.

[0013] Furthermore, a plurality of positioning holes are provided on the front surface of the handheld tray, a positioning rod is slidably connected to the inside of the handheld tray, a handheld block is fixedly connected to the front end of the positioning rod, and a spring is fixedly connected to the opposite side of the handheld tray and located on the outside of the positioning rod.

[0014] Furthermore, the lateral movement mechanism includes a lateral seat, the right side of the lateral seat is fixedly connected to motor 2, the left end of the output shaft of motor 2 is located on the inner side of the lateral seat and is fixedly connected to a reciprocating screw rod 1, and the outer side wall of the reciprocating screw rod 1 is slidably installed with a screw sleeve 1.

[0015] Furthermore, the vertical moving mechanism includes a motor three fixedly connected to the upper surface of the vertical seat, the bottom end of the output shaft of the motor three is located inside the vertical seat and fixedly connected to a reciprocating screw rod two, a screw rod sleeve two is slidably mounted on the outer side wall of the reciprocating screw rod two, the front surface of the screw rod sleeve two is fixedly connected to the rear surface of the cross arm, and the top of the screw rod sleeve one is fixedly connected to the bottom of the vertical seat.

[0016] Beneficial effects: The horizontal moving mechanism in the device controls the rotation of the reciprocating screw rod 1 by starting the second motor, and controls the sliding of the screw rod sleeve 1 to adjust the horizontal use position of the device; the vertical moving mechanism controls the rotation of the reciprocating screw rod 2 by starting the third motor, drives the screw rod sleeve 2 to slide, and adjusts the use height of the device; it is convenient for the device to be used in different positions;

[0017] Start the motor 1, and under the meshing transmission of the two gears, the two shaft columns can be controlled to rotate in the same direction or in different directions, so that under the traction and pulling of the arc-shaped telescopic member, the rotating member can be controlled to slide relative to or away from the outer wall of the cross bar, thereby controlling the two L-shaped clamping seats to move relative to or away from each other, so as to facilitate the clamping of the laser galvanometer body;

[0018] By setting the clamping plate one and the clamping plate two, it is convenient to clamp the laser galvanometer body, and then control the rotation of the laser galvanometer body to adjust the angle. After adjusting the angle, the laser galvanometer body after the angle adjustment can be positioned by inserting the positioning rod into the positioning holes at different positions, so that the device can be used at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the present invention;

[0020] Figure 2 It is a side structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the clamping mechanism of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the L-shaped clamping seat of the present invention.

[0023] In the figure: 1, horizontal moving mechanism; 2, vertical moving mechanism; 3, horizontal arm; 4, clamping mechanism; 101, horizontal seat; 102, motor two; 103, reciprocating screw rod one; 104, screw rod sleeve one; 201, vertical seat; 202, motor three; 203, reciprocating screw rod two; 204, screw rod sleeve two; 401, adjustment box; 402, shaft column; 403, gear; 404, cross bar; 405, rotating part; 406, arc-shaped telescopic part; 407, L-shaped clamping seat; 408, motor one; 409, clamping plate one; 410, rotating rod; 411, clamping plate two; 412, hand-held plate; 413, positioning hole; 414, positioning rod; 415, hand-held block; 416, spring. DETAILED DESCRIPTION

[0024] In order to better express the technical solution and beneficial effects of the entire invention, the present invention is further described in detail below with reference to the accompanying drawings and implementation examples. The implementation methods of the present invention are not limited thereto.

[0025] Step 1: Calculation of the horizontal distance between the welding wire axis and the arc axis

[0026] In the wire-filled GTAW process, the best welding effect can be obtained when the end of the welding wire is located at the center of the arc. Through experiments and data analysis, it can be measured that the maximum lateral deviation of the welding wire is ξ while ensuring good welding quality. How to keep the lateral deviation between the welding wire and the arc within the range ξ is a difficult problem. To address this problem, the present invention discloses a method for calculating the distance between the end of the welding wire and the center of the arc. Figure 1 As shown in the figure, when the arc is successfully struck and welding begins, the visual sensor on the clamping device starts to operate, capturing the image information of the welding process in real time and transmitting it to the image information processor to calculate the distance between the end of the welding wire and the center of the arc. After receiving the image information, the image information processor processes the image to obtain the coordinates of each point on the welding wire axis (x n ,y n ), and transmit the data to the wire lateral position controller via the communication bus.

[0027] Step 2: Real-time control of GTAW horizontal wire filling position

[0028] In the wire-filled GTAW process, the transverse wire position has an important influence on the welding efficiency and the weld quality. Therefore, it is necessary to control the transverse wire position during welding to obtain the optimal transverse wire position. To address this problem, the present invention discloses a method for automatically adjusting the transverse position of the welding wire to control the transverse position of the welding wire so as to keep the welding wire axis always intersecting with the arc axis. The welding wire transverse position controller receives the coordinates (x n ,y n ); if |x1-x2|<α,|x1-x3|<α,|x1-x4|<α,...,|x1-x n |

Claims

1. A laser galvanometer clamping and adjusting device for a laser welder, comprising a lateral movement mechanism (1), characterized in that: A vertical moving mechanism (2) is arranged above the horizontal moving mechanism (1); A horizontal arm (3) is arranged in front of the vertical moving mechanism (2), and a clamping mechanism (4) is fixedly connected to the front end of the horizontal arm (3); The clamping mechanism (4) comprises an adjusting box (401), wherein the adjusting box (401) is a hollow rectangular parallelepiped structure with an opening on the lower surface, wherein the adjusting box (401) is internally rotatably connected to two shaft columns (402), the outer side walls of the shaft columns (402) are fixedly connected to gears (403), a cross bar (404) is fixedly connected to the lower part of the adjusting box (401), the outer side walls of the cross bar (404) are slidably connected to two rotating members (405), the inner side of the rotating member (405) is rotatably connected to an arc-shaped telescopic member (406) via a rotating shaft, the top of the arc-shaped telescopic member (406) is fixedly connected to the outer side wall of the shaft column (402), and the bottom of the rotating member (405) is fixedly connected to an L-shaped clamping seat (407).

2. The laser galvanometer clamping and adjusting device for a laser welder according to claim 1, characterized in that: The outer side walls of the two gears (403) are meshed and connected.

3. The laser galvanometer clamping and adjusting device for a laser welder according to claim 1, characterized in that: A motor 1 (408) is fixedly connected to the left side of the regulating box (401), and the right end of the output shaft of the motor 1 (408) is fixedly connected to the left end of the shaft column (402) located at the front of the regulating box (401).

4. The laser galvanometer clamping and adjusting device for a laser welder according to claim 1, characterized in that: The inner rear surface of the L-shaped clamping seat (407) located behind the lower surface of the regulating box (401) is rotatably connected to a clamping plate 1 (409) via a rotating shaft.

5. The laser galvanometer clamping and adjusting device for a laser welder according to claim 1, characterized in that: The front surface of the L-shaped clamping seat (407) located in front of the lower surface of the adjustment box (401) is rotatably connected to a rotating rod (410) via a rotating shaft, the rear end of the rotating rod (410) is located on the inner side of the L-shaped clamping seat (407) and is fixedly connected to a clamping plate 2 (411), and the front end of the rotating rod (410) is fixedly connected to a handheld disk (412).

6. The laser galvanometer clamping and adjusting device for a laser welder according to claim 5, characterized in that: A plurality of positioning holes (413) are provided on the front surface of the handheld disk (412); a positioning rod (414) is slidably connected to the interior of the handheld disk (412); a handheld block (415) is fixedly connected to the front end of the positioning rod (414); a spring (416) is fixedly connected to the handheld block (415) on the opposite side of the handheld disk (412) and on the outside of the positioning rod (414).

7. The laser galvanometer clamping and adjusting device for a laser welder according to claim 1, characterized in that: The transverse moving mechanism (1) comprises a transverse seat (101), the right side of the transverse seat (101) is fixedly connected to a second motor (102), the left end of the output shaft of the second motor (102) is located on the inner side of the transverse seat (101) and is fixedly connected to a reciprocating screw rod (103), and the outer side wall of the reciprocating screw rod (103) is slidably mounted with a screw rod sleeve (104).

8. The laser galvanometer clamping and adjusting device for a laser welder according to claim 7, characterized in that: The vertical moving mechanism (2) comprises a vertical seat (201) having an upper surface fixedly connected to a motor three (202), the bottom end of the output shaft of the motor three (202) being located inside the vertical seat (201) and fixedly connected to a reciprocating screw rod two (203), a screw rod sleeve two (204) being slidably mounted on the outer side wall of the reciprocating screw rod two (203), the front surface of the screw rod sleeve two (204) being fixedly connected to the rear surface of the cross arm (3), and the top of the screw rod sleeve one (104) being fixedly connected to the bottom of the vertical seat (201).

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