Positioning jig based on laser carving product welding machining

Abstract

The invention relates to the technical field of welding positioning, in particular to a positioning jig based on laser carving product welding processing, which comprises a jig unit and a deflection unit, the jig unit comprises a base, a cylinder, a hollow corrugated pipe and a locking jig, and the deflection unit comprises a motor embedded in the upper surface of the base. The driving end of the motor is fixedly connected with a half gear, a center column is rotationally connected to the middle of the upper surface of the base, a table-shaped column is movably hinged to the top end of the center column, a lifting assembly is arranged on the upper surface of the base, and the half gear is driven by the motor to indirectly drive the locking jig to rotate and the lifting assembly to operate. The sleeve rod is driven to ascend by limiting sliding of the sleeve rod on the outer surface of the inner rod, and the locking jig is pushed to deflect and incline towards an operator, so that the operator does not need to frequently lower the head and stoop when carrying out feeding and discharging operation, the operation comfort of the operator is enhanced, and high working efficiency is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of welding positioning, and in particular to a positioning jig based on laser engraving product welding processing. Background Art

[0002] Laser engraving is a process that uses laser technology to engrave on the surface of various materials. Welding is a key link in the processing of laser engraving products. Its positioning accuracy directly affects the quality and performance of the product. A positioning jig is needed to fix the laser engraving product for welding. The positioning jig is mainly composed of a base, a positioning module and a clamping mechanism. The surface of the positioning module is designed with grooves and positioning bosses that match the contour of the laser engraving product. Through high-precision processing technology, the fit with the product is guaranteed to achieve accurate positioning of the laser engraving product.

[0003] After searching, a welding positioning jig with publication number CN119634957A proposed a positioning jig, including a fixing seat, a mounting seat and a cover plate. The fixing seat is installed on the workbench of the laser welding machine, and the mounting seat and the fixing seat are positioned and placed. The cover plate is positioned and plugged in to cover the top of the mounting seat. There are several concave placement grooves in a rectangular row on the mounting seat. The placement grooves include a main body slot and a spring slot. The spring slot is connected to the main body slot. It is easy to install and use. A welding through hole is opened to expose the welding position. When it is placed under the laser head, the spring clip and the shielding cover can be positioned and welded. A pressure block is provided near the welding through hole to press the shielding cover to ensure that the shielding cover will not be displaced during welding, thereby ensuring welding accuracy and stable welding quality.

[0004] The above patent still has shortcomings in actual use. The welding of laser engraving products is mostly semi-automatic welding, which requires workers to manually place the laser engraving products on the positioning jig, and then the welding machine automatically performs laser arc welding on the laser engraving products. In order to ensure that the welding machine can perfectly complete the welding task, the positioning jig needs to be placed flat on the welding table. The height angle of the jig does not match the ergonomic operating range, and the vertical operating stroke exceeds the comfortable operating range of the human body, resulting in the operator having to frequently bend down to pick up and place the laser engraving products. Long-term operation can easily cause lumbar muscle strain and visual fatigue, thereby reducing production efficiency. Based on this, the present invention discloses a positioning jig based on the welding processing of laser engraving products. Summary of the Invention

[0005] In order to solve the problem in the background technology that the height angle of the fixture does not match the workers, resulting in the need to frequently bend down during work, the present invention provides a positioning fixture based on laser engraving product welding processing, which includes a fixture unit and a deflection unit; The fixture unit includes a base, a cylinder, a hollow bellows and a locking fixture, wherein the cylinder is fixedly connected to the upper surface of the base, and the hollow bellows is rotatably connected to the lower surface of the locking fixture; The deflection unit includes a motor embedded in the upper surface of the base, a half gear is fixedly connected to the driving end of the motor, a central column is rotatably connected to the middle of the upper surface of the base, and a platform-shaped column is movably hinged on the top of the central column; A lifting component is provided on the upper surface of the base, a positioning component is provided on the side of the locking fixture, and a protective component is provided on the outer surface of the locking fixture.

[0006] As a further improvement of the present technical solution, the lifting assembly includes an inner rod rotatably connected to the upper surface of the base, the outer surface of the inner rod is movably sleeved with a sleeve rod, the top end of the sleeve rod is fixedly connected to a ball shaft, the outer surface of the ball shaft is movably sleeved with a ball sleeve, and the top end of the ball sleeve is fixedly connected to the lower surface of the locking jig.

[0007] As a further improvement of the present technical solution, a positioning rod is fixedly connected to the outer surface of the ball sleeve, a positioning groove is opened on the side of the platform column, and the positioning rod is slidably engaged in the interior of the positioning groove.

[0008] As a further improvement of the present technical solution, a slider is fixedly connected to the outer surface of the inner rod, an annular sliding groove is provided inside the sleeve rod, and the slider is slidably connected inside the annular sliding groove.

[0009] As a further improvement of the present technical solution, the outer surface fixed sleeve of the center column is provided with gear 1, the outer surface fixed sleeve of the inner rod is provided with gear 2, the half gear indirectly meshes with gear 1 and gear 2, and the number of tooth blocks of the half gear is half of the number of tooth blocks of gear 1 and gear 2.

[0010] As a further improvement of the present technical solution, the bottom end of the hollow bellows is fixedly connected to the top end of the cylinder, and the cylinder and the hollow bellows are wrapped around the periphery of the deflection unit and the lifting assembly to play a protective role. The design of the hollow bellows can be conveniently bent when the locking jig is deflected without affecting the normal protective effect.

[0011] As a further improvement of the present technical solution, the positioning assembly includes a support fixedly arranged on the side of the locking fixture, a shaft rod is movably inserted into the middle of the support, and a splint is fixedly connected to the outer surface of the shaft rod.

[0012] As a further improvement of this technical solution, the positioning components are provided in two groups and are symmetrically arranged on both sides of the locking jig. The splint is flipped over and covers the upper surface of the locking jig, which can fix the laser engraving product installed on the upper part of the locking jig.

[0013] As a further improvement of the present technical solution, the protective component includes a side panel fixedly connected to the outer surface of the locking jig, and a rotating rod is movably inserted into the upper surface of the side panel near both ends. The top of the rotating rod is fixedly connected to a filter plate, and two filter plates are provided. The combined length of the two filter plates is equal to the length of the locking jig.

[0014] As a further improvement of the present technical solution, a section of the shaft rod close to the side plate is fixedly connected to a driving wheel, and the bottom end of the rotating rod is fixedly connected to a driven wheel, and the driving wheel is meshedly connected to the driven wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this positioning fixture based on laser engraving product welding processing, the motor drives the half gear to indirectly drive the locking fixture to rotate and the lifting component to operate. The sleeve rod is driven by the limited sliding on the outer surface of the inner rod to drive the sleeve rod to rise and push the locking fixture to deflect and tilt toward the operator. This makes it unnecessary for the operator to frequently lower his head and bend over when loading and unloading materials, thereby enhancing the working comfort of the staff and maintaining high work efficiency.

[0016] 2. In this positioning jig based on laser engraving product welding processing, a protective component is set on the rear side of the locking jig. After loading is completed, the motor drives the locking jig to rotate again. The filter plate is blocked between the locking jig and the operator. During the welding process, the strong light generated by the laser arc can be filtered, thereby avoiding the impact of the strong light on the operator, greatly improving the operator's visual comfort.

[0017] 3. In this positioning fixture based on laser engraving product welding processing, the shaft is rotated by flipping the splint, and the filter plate is flipped by the transmission of the bevel gear, so as to avoid the light being blocked when the staff loads the material and maintain a good line of sight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure from a second viewing angle of the present invention; Figure 3 It is a schematic structural diagram of the deflection assembly of the present invention; Figure 4 It is a schematic diagram of the lifting assembly structure of the present invention; Figure 5 This is a schematic diagram of the cooperation structure between the inner rod and the sleeve rod of the present invention; Figure 6 This is a schematic diagram of the platform-type column structure of the present invention; Figure 7 This is a schematic diagram of the coordination structure of the positioning assembly and the protection assembly of the present invention; Figure 8For the present invention Figure 7 A in the enlarged view.

[0019] The meaning of each number in the figure is: 1. Fixture unit; 11. Base; 12. Cylinder; 13. Hollow bellows; 14. Locking fixture; 2. Deflection unit; 21. Motor; 22. Half gear; 23. Center column; 24. Gear 1; 25. Platform column; 3. Lifting assembly; 31. Inner rod; 32. Sleeve rod; 33. Gear 2; 34. Ball sleeve; 35. Ball shaft; 36. Positioning rod; 37. Positioning groove; 38. Annular slide; 39. Slider; 4. Positioning assembly; 41. Support; 42. Shaft; 43. Clamp; 5. Protective assembly; 51. Side panel; 52. Rotating rod; 53. Filter plate; 54. Driving wheel; 55. Driven wheel. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] To this end, the present invention provides a positioning jig based on laser engraving product welding processing, see Figures 1 to 8 As shown, it includes a fixture unit 1 and a deflection unit 2; The fixture unit 1 includes a base 11, a cylinder 12, a hollow bellows 13 and a locking fixture 14. The cylinder 12 is fixedly connected to the upper surface of the base 11, and the hollow bellows 13 is rotatably connected to the lower surface of the locking fixture 14. The upper surface of the base 11 is provided with a lifting component 3, and the side of the locking fixture 14 is provided with a positioning component 4. The outer surface of the locking fixture 14 is provided with a protective component 5. The bottom end of the hollow bellows 13 is fixedly connected to the top of the cylinder 12. The cylinder 12 and the hollow bellows 13 are wrapped around the periphery of the deflection unit 2 and the lifting component 3 to play a protective role. The design of the hollow bellows 13 can be easily bent when the locking fixture 14 is deflected without affecting the normal protective effect. When welding laser engraved products, the staff installs the laser engraved products to be welded in the corresponding holes on the locking jig 14, operates the positioning component 4 to cover the upper surface of the laser engraved products, and positions the laser engraved products to facilitate subsequent welding operations. The deflection unit 2 cooperates with the lifting component 3 to rotate and lift the locking jig 14, so that when installing the laser engraved products to be welded, the locking jig 14 is in a state of deflection and tilting toward the operator, so that the operator does not need to frequently lower his head and bend over when performing loading and unloading operations, thereby enhancing the staff's work comfort and maintaining high work efficiency. The protective component 5 can effectively filter the strong light generated by the laser arc when the welding mechanism welds the laser engraved products, absorb or reflect the harmful bands in the strong light, and greatly improve the operator's visual comfort.

[0022] like Figure 2 、 Figure 3 and Figure 6 As shown, the deflection unit 2 includes a motor 21 embedded in the upper surface of the base 11. The driving end of the motor 21 is fixedly connected to a half gear 22. A central column 23 is rotatably connected to the middle of the upper surface of the base 11. The top of the central column 23 is movably hinged to a platform-shaped column 25. The outer surface of the central column 23 is fixedly sleeved with a gear 1 24. The half gear 22 meshes with the gear 1 24. The number of tooth blocks of the half gear 22 is half of the number of tooth blocks of the gear 1 24. The motor 21 drives the half gear 22 to rotate and drive the gear 1 24 to rotate. The gear 1 24 drives the center column 23 and the platform column 25 to rotate synchronously, thereby achieving the purpose of driving the locking fixture 14 to rotate. After each rotation, the locking fixture 14 can realize loading, unloading, welding and other tasks. It is the connecting movement of each operation and assists the smooth progress of the operation process.

[0023] like Figures 3 to 6As shown, the lifting assembly 3 includes an inner rod 31 rotatably connected to the upper surface of the base 11, and a sleeve rod 32 is movably sleeved on the outer surface of the inner rod 31. There is a limiting structure between the sleeve rod 32 and the inner wall of the cylinder 12 to ensure that the sleeve rod 32 can move up and down linearly. The top of the sleeve rod 32 is fixedly connected to a ball shaft 35, and the outer surface of the ball shaft 35 is movably sleeved with a ball sleeve 34. The top of the ball sleeve 34 is fixedly connected to the lower surface of the locking fixture 14, and the outer surface of the ball sleeve 34 is fixedly connected to a positioning rod 36. A positioning groove 37 is opened on the side of the platform column 25, and the positioning rod 36 is slidably engaged in the interior of the positioning groove 37. During the rotation of the locking fixture 14, the positioning rod 36 will slide along the positioning groove 37 to avoid movement interference. The outer surface of the inner rod 31 is fixedly connected to a slider 39, and an annular groove 38 is provided inside the sleeve rod 32. The slider 39 is slidably connected to the inside of the annular groove 38. The annular groove 38 is inclined along the inner wall of the sleeve rod 32 and has a certain height difference to ensure up and down movement during operation. The outer surface of the inner rod 31 is fixedly sleeved with a gear 2 33. The half gear 22 meshes with the gear 2 33. The number of tooth blocks of the half gear 22 is half of the number of tooth blocks of the gear 2 33. The motor 21 drives the half gear 22 to rotate the wheel 2, and the gear 2 33 drives the inner rod 31 to rotate. Since the slider 39 provided on the outer surface of the inner rod 31 slides in the annular groove 38, the inner rod 31 drives the sleeve rod 32 to rise during its rotation. The sleeve rod 32 is connected to the positioning rod 36 through the ball shaft 35 and the ball sleeve 34, and is movable. During the rising process of the sleeve rod 32, the positioning rod 36 pulls the stage column 25 to rotate around the hinge with the center column 23, thereby pushing the locking fixture 14 to deflect and tilt toward the operator, so that the operator does not need to frequently lower his head and bend down when performing loading and unloading operations, thereby enhancing the working comfort of the staff. The improvement of working comfort can effectively reduce the fatigue of the operator, so that the operator can maintain a high working efficiency, thereby improving the production efficiency of the entire production process; After loading, the motor 21 first drives the locking jig 14 to rotate, and then drives the inner rod 31 to rotate to drive the sleeve rod 32 to descend, so that the inclined locking jig 14 becomes horizontal, which is convenient for the welding mechanism to perform welding operations on the laser engraved products on the locking jig 14, ensuring the accuracy and strength of the welding points and improving the welding quality.

[0024] like Figure 2 、 Figure 7 and Figure 8 As shown, the positioning assembly 4 includes a support 41 fixedly arranged on the side of the locking jig 14, a shaft 42 is movably inserted in the middle of the support 41, and a splint 43 is fixedly connected to the outer surface of the shaft 42. The positioning assembly 4 is provided with two groups and is symmetrically arranged on both sides of the locking jig 14. The splint 43 is flipped over and covers the upper surface of the locking jig 14, which can fix the laser engraving product installed on the upper part of the locking jig 14; Place the laser engraved product to be welded on the locking jig 14, then flip the splints 43 on both sides of the locking jig 14. The splints 43 drive the shaft 42 to rotate around the support 41 and cover the upper surface of the laser engraved product to position the laser engraved product. This keeps the laser engraved product stable during the welding process and ensures the welding quality. After the welding is completed, the staff can open the splints 43 on both sides to remove the laser engraved product that has been completed by laser arc welding.

[0025] like Figure 2 、 Figure 7 and Figure 8 As shown, the protective assembly 5 includes a side plate 51 fixedly connected to the outer surface of the locking fixture 14, and a rotating rod 52 is movably inserted near the two ends of the upper surface of the side plate 51. The top of the rotating rod 52 is fixedly connected to a filter plate 53. There are two filter plates 53. The combined length of the two filter plates 53 is equal to the length of the locking fixture 14. A section of the shaft 42 near the side plate 51 is fixedly connected to a driving wheel 54. The bottom end of the rotating rod 52 is fixedly connected to a driven wheel 55. The driving wheel 54 is meshed with the driven wheel 55. In the process of pushing the clamping plate 43 to flip around the support 41, the shaft 42 will be driven to rotate, and the driven wheel 55 will be driven to rotate synchronously through the driving wheel 54. The driven wheel 55 will drive the rotating rod 52 to rotate, thereby further driving the filter plate 53 to flip. After the laser engraving product to be welded is installed on the locking fixture 14, the clamping plate 43 is pushed to position the laser engraving product. The filter plate 53 rotates from its original outward-turned state to just above the side plate 51 and stands on the rear side of the locking fixture 14. After the motor 21 drives the locking fixture 14 to rotate 180 degrees, the light plate rotates from the side away from the operator to the side close to the operator. During the welding process, the strong light generated by the laser arc can be filtered, thereby avoiding the influence of the strong light on the operator, greatly improving the operator's visual comfort. After the laser engraving product is welded, the staff can open the splint 43 on both sides to remove the laser engraving product completed by laser arc welding. In the process of opening and flipping the splint 43, the filter plate 53 will be driven to expand outward to avoid light obstruction when the staff loads the material and maintain a good line of sight.

[0026] The technical solution provided by the present invention is that when performing welding operations on laser engraving products, the staff first accurately installs the laser engraving products to be welded in the corresponding holes on the locking fixture 14. This placement process needs to follow strict positioning standards. The positioning function of the splint 43 keeps the laser engraving products stable during the welding process to avoid the decline in welding quality due to position offset. Then, the splints 43 on both sides of the locking fixture 14 are flipped to cover the upper surface of the laser engraving products stably. The splint 43 drives the shaft 42 to rotate in the process of flipping around the support 41. The rotation of the shaft 42 drives the driving wheel 54 to rotate. The driving wheel 54 drives the driven wheel 55 to rotate synchronously through meshing transmission. The rotation of the driven wheel 55 drives the rotating rod 52 to rotate. The rotation of the rotating rod 52 finally causes the filter plate 53 to flip. The filter plate 53 starts to rotate from its original everted state. After precise angle control, it finally stands stably on the rear side of the locking fixture 14, just above the side plate 51. After the operator presses the drive button, the motor 21 is powered on and starts working, driving the half gear 22 to rotate 360 ​​degrees. The half gear 22 first meshes with gear 1 24, driving gear 1 24 to rotate. The rotation of gear 1 24 transmits power through the center column 23, driving the center column 23 and the platform column 25 connected to it to rotate synchronously, thereby achieving the purpose of driving the locking fixture 14 to flip. The flipping of the locking fixture 14 causes the filter plate 53 to rotate accurately from the side away from the operator to the side close to the operator. During the welding process, this position change of the filter plate 53 is of great significance. It can effectively filter the strong light generated by the laser arc. If the strong light generated during laser welding is directly exposed to the operator's eyes, it will cause serious damage to the eyesight. The filter plate 53, through its special optical material and structural design, can absorb or reflect the harmful wavelengths in the strong light, allowing only light of a safe intensity to pass through, thereby avoiding the impact of the strong light on the operator and greatly improving the operator's visual comfort. Subsequently, the half gear 22 continues to rotate, and with gear 2 3 3 is engaged, driving gear 2 33 to rotate, and the rotation of gear 2 33 drives the inner rod 31 to rotate, and the slider 39 provided on the outer surface of the inner rod 31 slides in the annular slide groove 38. During the rotation of the inner rod 31, the sliding of the slider 39 in the slide groove converts the rotational movement of the inner rod 31 into a linear downward movement of the sleeve rod 32. The sleeve rod 32 and the positioning rod 36 are connected by the ball shaft 35 and the ball sleeve 34. This connection method has good mobility and can adapt to movement in different directions. During the descent of the sleeve rod 32, the positioning rod 36 pulls the stage column 25 to rotate around the hinge with the center column 23, so that the originally tilted locking fixture 14 gradually becomes a horizontal state. When the locking fixture 14 is in a horizontal state, it is convenient for the welding mechanism to perform precise welding operations on the laser engraved products thereon, ensuring the accuracy and strength of the welding points and improving the welding quality. After the welding is completed, the operator presses the drive button again, and the motor 21 drives the half gear 22 to rotate 360 ​​degrees again. Under the linkage action of the half gear 22 and the gear 1 24, the locking fixture 14 is driven to rotate 180 degrees, so that the filter plate 53 is rotated to the side away from the operator again. Then, under the linkage action of the half gear 22 and the gear 2 33, the driving sleeve rod 32 rises. The rising movement of the sleeve rod 32 pushes the locking fixture 14 to deflect and tilt toward the operator through the positioning rod 36, which makes the operator do not need to frequently lower the tool when performing loading and unloading operations. The staff can raise their head and bend their waist, which enhances the working comfort of the staff. The improvement of working comfort can effectively reduce the fatigue of the operators, so that they can maintain high work efficiency, thereby improving the production efficiency of the entire production process. Finally, the staff can easily remove the laser engraving products completed by laser arc welding by opening the splint 43 on both sides. In the process of opening and flipping the splint 43, it will drive the filter plate 53 to expand outward, avoiding the obstruction of light when the staff loads the material, maintaining a good line of sight, and making it easier to align with the installation holes. The welding processing and production of laser engraving products can be realized in this way.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A positioning jig based on laser engraving product welding processing, characterized in that: It includes a fixture unit (1) and a deflection unit (2); The fixture unit (1) comprises a base (11), a cylinder (12), a hollow bellows (13) and a locking fixture (14); the cylinder (12) is fixedly connected to the upper surface of the base (11); and the hollow bellows (13) is rotatably connected to the lower surface of the locking fixture (14); The deflection unit (2) comprises a motor (21) embedded in the upper surface of the base (11), a driving end of the motor (21) is fixedly connected to a half gear (22), a central column (23) is rotatably connected to the middle of the upper surface of the base (11), and a platform-shaped column (25) is movably hinged at the top end of the central column (23); A lifting component (3) is provided on the upper surface of the base (11), a positioning component (4) is provided on the side of the locking fixture (14), and a protective component (5) is provided on the outer surface of the locking fixture (14).

2. The positioning jig for laser engraving product welding according to claim 1, characterized in that: The lifting assembly (3) includes an inner rod (31) rotatably connected to the upper surface of the base (11), a sleeve rod (32) movably sleeved on the outer surface of the inner rod (31), a ball shaft (35) fixedly connected to the top end of the sleeve rod (32), a ball sleeve (34) movably sleeved on the outer surface of the ball shaft (35), and a ball sleeve (34) fixedly connected to the lower surface of the locking fixture (14).

3. The positioning jig for laser engraving product welding according to claim 2, characterized in that: The outer surface of the ball sleeve (34) is fixedly connected with a positioning rod (36), and the side of the platform column (25) is provided with a positioning groove (37), and the positioning rod (36) is slidably engaged in the interior of the positioning groove (37).

4. The positioning jig for laser engraving product welding according to claim 3, characterized in that: A slider (39) is fixedly connected to the outer surface of the inner rod (31), an annular sliding groove (38) is provided inside the sleeve rod (32), and the slider (39) is slidably connected inside the annular sliding groove (38).

5. The positioning jig for laser engraving product welding according to claim 2, characterized in that: The outer surface of the center column (23) is fixedly sleeved with a gear 1 (24), the outer surface of the inner rod (31) is fixedly sleeved with a gear 2 (33), the half gear (22) is indirectly meshed with the gear 1 (24) and the gear 2 (33), and the number of tooth blocks of the half gear (22) is half the number of tooth blocks of the gear 1 (24) and the gear 2 (33).

6. The positioning jig for laser engraving product welding according to claim 1, characterized in that: The bottom end of the hollow bellows (13) is fixedly connected to the top end of the cylinder (12), and the cylinder (12) and the hollow bellows (13) are wrapped around the periphery of the deflection unit (2) and the lifting assembly (3) to play a protective role. The design of the hollow bellows (13) can be conveniently bent when the locking fixture (14) is deflected without affecting the normal protective effect.

7. The positioning jig for laser engraving product welding according to claim 1, characterized in that: The positioning assembly (4) comprises a support (41) fixedly arranged on the side of the locking fixture (14), a shaft (42) movably inserted into the middle of the support (41), and a splint (43) fixedly connected to the outer surface of the shaft (42).

8. The positioning jig for laser engraving product welding according to claim 7, characterized in that: The positioning components (4) are provided in two groups and are symmetrically arranged on both sides of the locking jig (14); the clamping plate (43) is turned over to cover the upper surface of the locking jig (14), and can fix the laser engraving product installed on the upper part of the locking jig (14).

9. The positioning jig for laser engraving product welding according to claim 8, characterized in that: The protective component (5) comprises a side plate (51) fixedly connected to the outer surface of the locking fixture (14); a rotating rod (52) is movably inserted into the upper surface of the side plate (51) near both ends; a filter plate (53) is fixedly connected to the top end of the rotating rod (52); two filter plates (53) are provided, and the combined length of the two filter plates (53) is equal to the length of the locking fixture (14).

10. The positioning jig for laser engraving product welding according to claim 9, characterized in that: A section of the shaft (42) close to the side plate (51) is fixedly connected to a driving wheel (54), and a bottom end of the rotary rod (52) is fixedly connected to a driven wheel (55), and the driving wheel (54) and the driven wheel (55) are meshed and connected.

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