Double-probe four-laser-beam focus positioning device

Abstract

The invention relates to the technical field of laser positioning, and discloses a double-probe four-laser-beam focus positioning device which comprises a main body, a movement mechanism and a pushing mechanism. The outer surface of the movement mechanism and the inner wall of the body are slidably arranged. When the second rotating plate rotates, the second reflecting plate connected with the second rotating plate can be driven to rotate, and when the second reflecting plate rotates, the angle can be adjusted so that laser can be ejected to the inner wall of the other second reflecting plate; the worker repeats the operation to rotate the second reflecting plate II, so that the laser falling on the inner wall of the reflecting plate II is guided by the angle to fall on the convex mirror and is focused with the other laser to form a point; the situation that laser cannot be focused into a point for positioning due to slight dislocation of the laser head and the convex lens which are in butt joint when the main body moves is avoided, the stability of the device during operation is ensured, and the positioning accuracy of the device through double probes and four laser beam focuses is improved.

Description

A dual-probe four-laser beam focal positioning device Technical Field

[0001] This invention relates to the field of laser positioning technology, specifically to a dual-probe, four-laser-beam focal positioning device. Background Technology

[0002] Currently, in practical applications of dual-probe four-laser-beam measuring equipment, the spatial relative position of the laser focus cannot be determined, causing many problems in actual use. This device is widely used in industrial scenarios such as precision machining to accurately determine the focus. In the process of using this device, the operator first installs it at the welding head of the welding device, and then activates the four laser heads located at the bottom of the two probes. The laser beams emitted by the four laser heads pass through convex lenses located at the bottom of the probes. After the laser beams pass through the convex lenses, they are focused to form a point that coincides with the welding point at the bottom of the welding head to complete the docking. Because the device moves when the welding head is working after docking, the docked laser heads and convex lenses may slightly misalign during the movement of the welding head, causing the laser to fail to focus into a single point for positioning. This affects the stability of the device during operation and the accuracy of its positioning. Summary of the Invention

[0003] The purpose of this invention is to provide a dual-probe, four-laser-beam focal positioning device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a dual-probe four-laser beam focal positioning device, comprising a main body, several motion mechanisms, and several pushing mechanisms. The outer surface of the motion mechanism is slidably disposed with respect to the inner wall of the main body, the outer wall of the pushing mechanism is fixedly disposed with respect to the side wall of the motion mechanism, and the inner wall of the main body is slidably disposed with respect to the outer wall of the pushing mechanism. The main body includes two positioning components and two auxiliary components. The side walls of the two positioning components are fixedly disposed with respect to the side wall of the main body, and the side walls of the two auxiliary components are rotatably disposed with respect to the side wall of the main body. The motion mechanism includes a sliding component and a fixing component. The outer surface of the sliding component is slidably disposed with respect to the inner wall of the auxiliary component, and the side of the two fixing components that are close to each other is fixedly disposed with respect to the side wall of the sliding component. The pushing mechanism includes a correction component and a moving component. The outer wall of the correction component is fixedly disposed with respect to the inner wall of the sliding component, and the side wall of the moving component is fixedly disposed with respect to the inner wall of the auxiliary component.

[0005] Furthermore, the positioning component includes a fixed plate and a rotating plate; the side wall of the fixed plate is fixedly connected to the side wall of the main body, and the end of the fixed plate away from the main body is rotatably connected to the side wall of the rotating plate.

[0006] Furthermore, the positioning assembly also includes a probe and two laser heads; the inner wall of the rotating plate is fixedly connected to the outer surface of the probe, and the inner wall of the probe is fixedly connected to the side walls of the two laser heads.

[0007] Furthermore, the auxiliary components include a telescopic rod and a convex mirror; the side wall of the telescopic rod is rotatably connected to the side wall of the main body, and the outer surface of the convex mirror is fixedly connected to the inner wall of the telescopic rod.

[0008] Furthermore, the auxiliary components also include several sliding grooves and two moving grooves; the outer surfaces of the several sliding grooves are fixedly connected to the inner wall of the telescopic rod, and the outer surfaces of the two moving grooves are fixedly connected to the inner wall of the main body.

[0009] Furthermore, the sliding assembly includes: two springs, a sliding rod, a rotating plate, and a handle; the sidewall of spring one is fixedly connected to the inner wall of the sliding groove, and the outer surface of the sliding rod is fixedly connected to the end of the two springs away from the sliding groove; the inner wall of the rotating plate is rotatably connected to the outer surface of the sliding rod, and the outer wall of the handle is fixedly connected to the sidewall of the rotating plate; wherein, the outer surface of the sliding rod is slidably connected to the inner walls of the two sliding grooves.

[0010] Furthermore, the fixing assembly includes several arc-shaped rods and a reflector plate; the sides of the several arc-shaped rods that are close to each other are fixedly connected to the side wall of the rotating plate, and the outer wall of the reflector plate is fixedly connected to the inner wall of the arc-shaped rods.

[0011] Furthermore, the correction assembly includes a second reflector, a pusher block, and a triangular block; the outer wall of the second reflector is fixedly connected to the inner wall of the second rotating plate, the top of the pusher block is fixedly connected to the bottom of the second reflector, and the top of the triangular block is in contact with the bottom of the pusher block; wherein, the side wall of the second reflector is fixedly connected to the side walls of the two first reflectors, the side walls of the two triangular blocks are fixedly connected to the inner wall of the telescopic rod, and the top of the triangular block is inclined.

[0012] Furthermore, the movable component includes a fixed rod and an arc-shaped rod II; the side wall of the fixed rod is fixedly connected to the inner wall of the movable groove, and the inner wall of the arc-shaped rod II is slidably connected to the outer surface of the fixed rod.

[0013] Furthermore, the moving assembly also includes a compression block and a second spring; the sidewall of the compression block contacts the outer surface of the second arc-shaped rod, and the sidewall of the second spring is fixedly connected to the sidewall of the compression block; wherein, the sidewall of the compression block is slidably connected to the inner wall of the moving groove, the end of the second spring away from the compression block is fixedly connected to the inner wall of the moving groove, and the part of the compression block that contacts the second arc-shaped rod is made of rubber.

[0014] The present invention has the following beneficial effects: (1) When the rotating plate 2 rotates, it will drive the reflector plate 2 connected to it to rotate. When the reflector plate 2 rotates, it will adjust the angle so that the laser will bounce onto the inner wall of another reflector plate 2. At this time, the operator repeats this operation to rotate the second reflector plate 2 so that the laser falling on the inner wall of the reflector plate 2 is guided by the angle to fall on the convex mirror and focus with another laser to become a point. This reduces the situation where when the main body is moved for welding, the laser head and the convex mirror will be slightly misaligned when the main body moves, causing the laser to fail to focus into a point for positioning. This ensures the stability of the device during operation and improves the accuracy of the device for positioning by the focus of the four laser beams of the dual probe.

[0015] (2) In this invention, when the handle is pulled to the accurate position to complete the docking, the arc rod two stops moving. At this time, the spring two will reset under the action of its own accumulated potential energy. When the spring two resets, it will push the squeezing block to reset. After the squeezing block resets, it will contact the surface of the arc rod two and fix the rubber layer of its side wall to the arc rod two. After the arc rod two is fixed, it will position the handle and the rotating plate two and other components. This reduces the situation where the rotating plate two shakes due to the movement of the main body after adjustment by the rotating plate two and the reflector plate two. It strengthens the fixing effect of the rotating plate two and improves the overall quality of the device for positioning by the dual probe four laser beam focus.

[0016] (3) In this invention, when the reflector plate 2 moves, the rotating plate 2 pushes the sliding rod to slide inside the sliding groove. When the sliding rod slides, it applies a pushing force to the two springs 1 that are in contact with it. After the springs 1 are pushed, they will contract and accumulate potential energy, thereby completing the movement. This reduces the situation where the bottom of the reflector plate 2 scrapes against the top of the convex mirror when the rotating plate 2 drives the reflector plate 2 to rotate and adjust the ejection angle, ensuring the flatness of the top of the convex mirror and further improving the overall quality of the device for positioning by the dual probes and four laser beam focal points.

[0017] (4) In this invention, when the first reflector rotates, the second reflector will rotate synchronously, thereby reflecting the laser that is ejected by the second reflector. When several first reflectors rotate, the ejection angle of the laser by the second reflector is expanded. Then, when the laser is ejected by the second reflector and focused, the laser can be adjusted more accurately. This improves the positioning situation when there is a slight misalignment between the laser head and the convex lens, ensures the accuracy of laser adjustment, and further improves the accuracy of positioning by the device through the focus of four laser beams from two probes.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 3 is a partial cross-sectional view of the positioning component of the present invention; Figure 4 is a partial cross-sectional view of the auxiliary component of the present invention; Figure 5 is a diagram of the connection relationship of the auxiliary component of the present invention; Figure 6 is an enlarged view of point A in Figure 5 of the present invention; Figure 7 is a partial cross-sectional view of the sliding component of the present invention; Figure 8 is a partial cross-sectional view of the fixing component of the present invention; Figure 9 is an enlarged view of point B in Figure 8 of the present invention; Figure 10 is a partial cross-sectional view of the moving component of the present invention; Figure 11 is an enlarged view of point C in Figure 10 of the present invention.

[0021] The components represented by each number in the attached diagram are listed below: 1. Main body; 11. Positioning assembly; 111. Fixing plate; 112. Rotating plate one; 113. Probe; 114. Laser head; 12. Auxiliary assembly; 121. Telescopic rod; 122. Convex mirror; 123. Sliding groove; 124. Moving groove; 2. Motion mechanism; 21. Sliding assembly; 211. Two springs one; 212. Sliding rod; 213. Rotating plate two; 214. Handle; 22. Fixing assembly; 221. Arc rod one; 222. Reflector one; 3. Pushing mechanism; 31. Correction assembly; 311. Reflector two; 312. Pushing block; 313. Triangular block; 32. Moving assembly; 321. Fixing rod; 322. Arc rod two; 323. Pressing block; 324. Spring two. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please refer to Figures 1-11. This invention is a dual-probe four-laser beam focal positioning device, comprising a main body 1, several motion mechanisms 2, and several pushing mechanisms 3. The outer surface of the motion mechanism 2 is slidably disposed with respect to the inner wall of the main body 1, the outer wall of the pushing mechanism 3 is fixedly disposed with respect to the side wall of the motion mechanism 2, and the inner wall of the main body 1 is slidably disposed with respect to the outer wall of the pushing mechanism 3. The main body 1 includes two positioning components 11 and two auxiliary components 12. The side walls of the two positioning components 11 are fixedly disposed with respect to the side wall of the main body 1, and the side walls of the two auxiliary components 12 are rotatably disposed with respect to the side wall of the main body 1. The motion mechanism 2 includes a sliding component 21 and a fixing component 22. The outer surface of the sliding component 21 is slidably disposed with respect to the inner wall of the auxiliary component 12, and the side of the two fixing components 22 that are close to each other is fixedly disposed with respect to the side wall of the sliding component 21. The pushing mechanism 3 includes a correction component 31 and a moving component 32. The outer wall of the correction component 31 is fixedly disposed with respect to the inner wall of the sliding component 21, and the side wall of the moving component 32 is fixedly disposed with respect to the inner wall of the auxiliary component 12.

[0024] The positioning component 11 includes a fixed plate 111 and a rotating plate 112. The side wall of the fixed plate 111 is fixedly connected to the side wall of the main body 1, and the end of the fixed plate 111 away from the main body 1 is rotatably connected to the side wall of the rotating plate 112. The angle of the rotating plate 112 and the telescopic rod 121 is adjusted by the operator according to the welding point of the main body 1. After the angle is adjusted, the point formed by the two laser focusing will coincide with the welding point of the main body 1.

[0025] The positioning assembly 11 also includes a probe 113 and two laser heads 114; the inner wall of the rotating plate 112 is fixedly connected to the outer surface of the probe 113, and the inner wall of the probe 113 is fixedly connected to the side walls of the two laser heads 114. The lasers emitted by the two laser heads 114 at the bottom of the same probe 113 will pass through the convex mirror 122 located inside the telescopic rod 121. After the two laser beams pass through the convex mirror 122, their endpoints will be focused into a single point.

[0026] The auxiliary component 12 includes a telescopic rod 121 and a convex mirror 122. The side wall of the telescopic rod 121 is rotatably connected to the side wall of the main body 1. The outer surface of the convex mirror 122 is fixedly connected to the inner wall of the telescopic rod 121. Rotating the second reflector 311 causes the laser falling on the inner wall of the second reflector 311 to be guided by an angle and fall on the convex mirror 122, where it is focused into a single point with another laser.

[0027] The auxiliary component 12 also includes several sliding grooves 123 and two moving grooves 124; the outer surfaces of the several sliding grooves 123 are fixedly connected to the inner wall of the telescopic rod 121, and the outer surfaces of the two moving grooves 124 are fixedly connected to the inner wall of the main body 1. When the reflector plate 211 moves, it will push the sliding rod 212 to slide inside the sliding groove 123 through the rotating plate 213. When the sliding rod 212 slides, it will apply a pushing force to the two springs 211 that are in contact with it.

[0028] The sliding assembly 21 includes: two springs 211, a sliding rod 212, a rotating plate 213, and a handle 214. The sidewall of the spring 211 is fixedly connected to the inner wall of the sliding groove 123, and the outer surface of the sliding rod 212 is fixedly connected to the end of the two springs 211 away from the sliding groove 123. The inner wall of the rotating plate 213 is rotatably connected to the outer surface of the sliding rod 212, and the outer wall of the handle 214 is fixedly connected to the sidewall of the rotating plate 213. The outer surface of the sliding rod 212 is slidably connected to the inner wall of the two sliding grooves 123. When the operator pulls the handle 214 upward, the handle 214 will drive the arc-shaped rod 322 connected to it to slide on the outer surface of the fixed rod 321. When the arc-shaped rod 322 slides, the friction will pull the pressing block 323 to move slightly upward.

[0029] The fixed assembly 22 includes several arc-shaped rods 221 and a reflector 222. The sides of the arc-shaped rods 221 that are close to each other are fixedly connected to the side wall of the rotating plate 213. The outer wall of the reflector 222 is fixedly connected to the inner wall of the arc-shaped rods 221. When the rotating plate 213 rotates, it will drive the arc-shaped rods 221 connected to it to rotate. When the arc-shaped rods 221 rotate, it will drive the reflector 222 connected to them to rotate. When the reflector 222 rotates, the reflector 311 will rotate synchronously, thereby reflecting the laser that is ejected by the other reflector 311.

[0030] The correction component 31 includes a second reflector 311, a pusher block 312, and a triangular block 313. The outer wall of the second reflector 311 is fixedly connected to the inner wall of the second rotating plate 213. The top of the pusher block 312 is fixedly connected to the bottom of the second reflector 311, and the top of the triangular block 313 is in contact with the bottom of the pusher block 312. The side wall of the second reflector 311 is fixedly connected to the side walls of the two first reflectors 222, and the side walls of the two triangular blocks 313 are fixedly connected to the inner wall of the telescopic rod 121. The top of the triangular block 313 is inclined. When the second reflector 311 rotates, it will adjust the angle so that the laser is ejected onto the inner wall of the other second reflector 311. At this time, the operator repeats this operation to rotate the second second reflector 311 so that the laser falling on the inner wall of the second reflector 311 is guided by the angle to fall on the convex mirror 122 and be focused into a point with another laser.

[0031] The moving component 32 includes a fixed rod 321 and an arc-shaped rod 322. The side wall of the fixed rod 321 is fixedly connected to the inner wall of the moving groove 124, and the inner wall of the arc-shaped rod 322 is slidably connected to the outer surface of the fixed rod 321. When the arc-shaped rod 322 stops moving, the spring 324 will reset under the action of its own accumulated potential energy. When the spring 324 resets, it will push the pressing block 323 to reset. After the pressing block 323 resets, it will contact the outer surface of the arc-shaped rod 322 and fix the rubber layer of its side wall to the arc-shaped rod 322.

[0032] The moving assembly 32 also includes a pressing block 323 and a second spring 324. The sidewall of the pressing block 323 contacts the outer surface of the second arc-shaped rod 322, and the sidewall of the second spring 324 is fixedly connected to the sidewall of the pressing block 323. The sidewall of the pressing block 323 is slidably connected to the inner wall of the moving groove 124, and the end of the second spring 324 away from the pressing block 323 is fixedly connected to the inner wall of the moving groove 124. The part of the pressing block 323 that contacts the second arc-shaped rod 322 is made of rubber. When the second arc-shaped rod 322 slides, the friction will pull the pressing block 323 to move slightly upward, and when the pressing block 323 moves upward, it will apply a pushing force to the second spring 324 connected to it.

[0033] In use, the operator first fixes the device to the side wall of the welding device. Then, the operator activates several laser heads 114 located at the bottom of the two probes 113. The lasers emitted by the two laser heads 114 at the bottom of the same probe 113 pass through the convex mirror 122 located inside the telescopic rod 121. After the two laser beams pass through the convex mirror 122, their endpoints will be focused into a single point. At the same time, the endpoints of the lasers emitted by the two laser heads 114 at the bottom of the other probe 113 will also be focused into a single point. At this time, the operator adjusts the angle of the rotating plate 112 and the telescopic rod 121 according to the welding point of the main body 1. After the angle is adjusted, the point formed by the two laser beams will coincide with the welding point of the main body 1, thus completing the overall process of positioning by focusing the four laser beams through the dual probes 113.

[0034] After rotating the telescopic rod 121 to make the convex mirror 122 parallel to the bottom of the probe 113, the laser emitted by the two laser heads 114 at the bottom of the probe 113 will be focused into a single point by the convex mirror 122. Since the main body 1 needs to be moved for welding after positioning, the moving welding of the main body 1 will drive the fixed plate 111 to move. When the fixed plate 111 moves, the rotating plate 112 will shake slightly. When the rotating plate 112 shakes, it will drive the probe 113 and the laser head 114 to shake, which will cause the position of the two laser heads 114 on the convex mirror 122 to change. As a result, the laser emitted by the laser head 114 will be affected by the angle of the convex mirror 122 and bounce onto the inner wall of one of the reflector plates 211. At this time, the operator pulls the handle 214 to make the rotating plate 213 slide. The outer surface of the moving rod 212 rotates slightly and slowly. When the rotating plate 213 rotates, it drives the reflector plate 311 connected to it to rotate. When the reflector plate 311 rotates, it adjusts the angle so that the laser beam is ejected onto the inner wall of another reflector plate 311. At this time, the operator repeats this operation to rotate the second reflector plate 311 so that the laser beam falling on the inner wall of the reflector plate 311 is guided by the angle to fall on the convex mirror 122 and be focused into a point with another laser beam. This reduces the possibility that when the main body 1 moves for welding, the laser head 114 and the convex mirror 122 may be slightly misaligned, causing the laser beam to fail to be focused into a point for positioning. This ensures the stability of the device during operation and improves the accuracy of the device in positioning by focusing the four laser beams through the dual probes 113.

[0035] When the operator pulls the handle 214 upwards, the handle 214 causes the connected arc-shaped rod 322 to slide on the outer surface of the fixed rod 321. As the arc-shaped rod 322 slides, friction pulls the pressing block 323 upwards slightly. This upward movement of the pressing block 323 applies a pushing force to the connected spring 324. Upon receiving this pushing force, the spring 324 contracts on the inner wall of the moving groove 124, accumulating potential energy. After the handle 214 is pulled to the correct position for docking, the arc-shaped rod 322 stops moving. At this point, the spring 324, having accumulated its potential energy, continues to move. When the spring 324 resets, it pushes the squeezing block 323 to reset. After the squeezing block 323 resets, it contacts the outer surface of the arc-shaped rod 322, and the rubber layer of its side wall fixes the arc-shaped rod 322. After the arc-shaped rod 322 is fixed, it positions the handle 214 and the rotating plate 213, etc. This reduces the shaking of the rotating plate 213 caused by the movement of the main body 1 after adjustment by the rotating plate 213 and the reflector 311, strengthens the fixing effect of the rotating plate 213, and improves the overall quality of the device's positioning by the four laser beam focal points of the dual probes 113.

[0036] During the rotation adjustment of the rotating plate 213, the rotating plate 213 drives the push block 312 at its bottom to rotate via the reflector 311. When the push block 312 rotates, it contacts the triangular block 313 at its bottom. Since the triangular block 313 is fixed to the inner wall of the telescopic rod 121, the push block 312 will be pushed by the reaction force of the triangular block 313 to move the reflector 311. When the reflector 311 moves, it will push the sliding rod 212 in the sliding groove 12 via the rotating plate 213. The sliding mechanism 3 slides inside the slide rod 212. When the slide rod 212 slides, it applies a pushing force to the two springs 211 that are in contact with it. After the springs 211 are pushed, they will contract and accumulate potential energy, thereby completing the movement. This reduces the scraping between the bottom of the reflector 311 and the top of the convex mirror 122 when the rotating plate 213 drives the reflector 311 to rotate and adjust the ejection angle. This ensures the flatness of the top of the convex mirror 122 and further improves the overall quality of the device for positioning by the four laser beams focused by the dual probes 113.

[0037] When the rotating plate 213 rotates, it drives the arc rod 221 connected to it to rotate. When the arc rod 221 rotates, it drives the reflector 222 connected to it to rotate. When the reflector 222 rotates, the reflector 311 rotates synchronously, thus reflecting the laser beam ejected by the other reflector 311. When several reflectors 222 rotate, the ejection angle of the laser beam by the reflector 311 is expanded. Then, when the laser beam ejected by the rotating reflector 311 is focused, the laser beam can be adjusted more precisely. This improves the positioning situation when there is a slight misalignment between the laser head 114 and the convex mirror 122, ensures the accuracy of laser beam adjustment, and further improves the accuracy of positioning of the device through the four laser beam focal points of the dual probes 113.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dual-probe four-laser beam focal positioning device, comprising a main body (1), a plurality of motion mechanisms (2) and a plurality of pushing mechanisms (3), wherein the outer surface of the motion mechanism (2) is slidably disposed with respect to the inner wall of the main body (1), the outer wall of the pushing mechanism (3) is fixedly disposed with respect to the side wall of the motion mechanism (2), and the inner wall of the main body (1) is slidably disposed with respect to the outer wall of the pushing mechanism (3); the main body (1) comprises two positioning components (11) and two auxiliary components (12), the side walls of the two positioning components (11) are fixedly disposed with respect to the side walls of the main body (1), and the two auxiliary components (12) are fixedly disposed with respect to the side walls of the main body (1). The sidewall of the auxiliary component (1) is rotatably arranged with the sidewall of the main body (1); the motion mechanism (2) includes a sliding component (21) and a fixed component (22). The outer surface of the sliding component (21) is slidably arranged with the inner wall of the auxiliary component (12). The two fixed components (22) are fixedly arranged with the sidewall of the sliding component (21) on the side that is close to each other; the pushing mechanism (3) includes a correcting component (31) and a moving component (32). The outer wall of the correcting component (31) is fixedly arranged with the inner wall of the sliding component (21). The sidewall of the moving component (32) is fixedly arranged with the inner wall of the auxiliary component (12).

2. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The positioning component (11) includes a fixed plate (111) and a rotating plate (112); the side wall of the fixed plate (111) is fixedly connected to the side wall of the main body (1), and the end of the fixed plate (111) away from the main body (1) is rotatably connected to the side wall of the rotating plate (112).

3. The dual-probe four-laser beam focal positioning device according to claim 2, characterized in that: The positioning component (11) also includes a probe (113) and two laser heads (114); the inner wall of the rotating plate (112) is fixedly connected to the outer surface of the probe (113), and the inner wall of the probe (113) is fixedly connected to the side walls of the two laser heads (114).

4. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The auxiliary component (12) includes a telescopic rod (121) and a convex mirror (122); the side wall of the telescopic rod (121) is rotatably connected to the side wall of the main body (1), and the outer surface of the convex mirror (122) is fixedly connected to the inner wall of the telescopic rod (121).

5. The dual-probe four-laser beam focal positioning device according to claim 4, characterized in that: The auxiliary component (12) also includes several sliding grooves (123) and two moving grooves (124); the outer surfaces of the several sliding grooves (123) are fixedly connected to the inner wall of the telescopic rod (121), and the outer surfaces of the two moving grooves (124) are fixedly connected to the inner wall of the main body (1).

6. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The sliding assembly (21) includes two springs (211), a sliding rod (212), a rotating plate (213), and a handle (214). The side wall of the spring (211) is fixedly connected to the inner wall of the sliding groove (123), and the outer surface of the sliding rod (212) is fixedly connected to the end of the two springs (211) away from the sliding groove (123). The inner wall of the rotating plate (213) is rotatably connected to the outer surface of the sliding rod (212), and the outer wall of the handle (214) is fixedly connected to the side wall of the rotating plate (213). The outer surface of the sliding rod (212) is slidably connected to the inner wall of the two sliding grooves (123).

7. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The fixing component (22) includes several arc-shaped rods (221) and two reflectors (222); the sides of the arc-shaped rods (221) that are close to each other are fixedly connected to the side wall of the rotating plate (213), and the outer wall of the reflector (222) is fixedly connected to the inner wall of the arc-shaped rods (221).

8. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The correction component (31) includes a second reflector (311), a pusher (312), and a triangular block (313); the outer wall of the second reflector (311) is fixedly connected to the inner wall of the second rotating plate (213), the top of the pusher (312) is fixedly connected to the bottom of the second reflector (311), and the top of the triangular block (313) is in contact with the bottom of the pusher (312); wherein, the side wall of the second reflector (311) is fixedly connected to the side walls of the two first reflectors (222), and the side walls of the two triangular blocks (313) are fixedly connected to the inner wall of the telescopic rod (121).

9. The dual-probe four-laser beam focal positioning device according to claim 1, characterized in that: The moving component (32) includes a fixed rod (321) and an arc-shaped rod (322); the side wall of the fixed rod (321) is fixedly connected to the inner wall of the moving groove (124), and the inner wall of the arc-shaped rod (322) is slidably connected to the outer surface of the fixed rod (321).

10. A dual-probe four-laser beam focal positioning device according to claim 9, characterized in that: The moving component (32) further includes a pressing block (323) and a second spring (324); the side wall of the pressing block (323) is in contact with the outer surface of the second arc rod (322), and the side wall of the second spring (324) is fixedly connected to the side wall of the pressing block (323); wherein, the side wall of the pressing block (323) is slidably connected to the inner wall of the moving groove (124), and the end of the second spring (324) away from the pressing block (323) is fixedly connected to the inner wall of the moving groove (124).

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