阅读说明：本技术 一种激光焊接位置误差补偿方法及激光焊接设备 (Laser welding position error compensation method and laser welding equipment ) 是由 蒋习锋 马建润 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种激光焊接位置误差补偿方法及激光焊接设备,属于激光焊接设备技术领域。一种激光焊接位置误差补偿方法及激光焊接设备,包括安装桌和侧板,所述安装桌的内部安装有弹簧,且弹簧的底部设置有支撑脚,所述安装桌的顶部安装有第一螺纹杆,且第一螺纹杆的边侧设置有第一传动螺母,并且第一传动螺母的顶部安装有安装板,所述侧板设置于安装板的底部,且侧板的底部安装有第一滚轮,并且第一滚轮的外侧设置有底板,所述底板的底部安装有第二传动螺母,且第二传动螺母的内部贯穿有第二螺纹杆；该激光焊接位置误差补偿方法及激光焊接设备,具有较好的降振功能,便于工件的固定和位置调节,具备稳定的焊接位置误差补偿功能。(The invention discloses a laser welding position error compensation method and laser welding equipment, and belongs to the technical field of laser welding equipment. A laser welding position error compensation method and a laser welding device comprise an installation table and a side plate, wherein a spring is installed inside the installation table, supporting legs are arranged at the bottom of the spring, a first threaded rod is installed at the top of the installation table, a first transmission nut is arranged on the side of the first threaded rod, an installation plate is installed at the top of the first transmission nut, the side plate is arranged at the bottom of the installation plate, a first roller is installed at the bottom of the side plate, a bottom plate is arranged on the outer side of the first roller, a second transmission nut is installed at the bottom of the bottom plate, and a second threaded rod penetrates through the interior of the second transmission nut; the laser welding position error compensation method and the laser welding equipment have a good vibration reduction function, are convenient for fixing and position adjusting of workpieces, and have a stable welding position error compensation function.)

1. A laser welding apparatus comprising a mounting table (1) and a side plate (7), characterized in that: the spring (2) is installed inside the installation table (1), the supporting legs (3) are arranged at the bottom of the spring (2), the first threaded rod (4) is installed at the top of the installation table (1), the side of the first threaded rod (4) is provided with the first transmission nut (5), the installation plate (6) is installed at the top of the first transmission nut (5), the side plate (7) is arranged at the bottom of the installation plate (6), the first roller (8) is installed at the bottom of the side plate (7), the bottom plate (9) is arranged on the outer side of the first roller (8), the second transmission nut (10) is installed at the bottom of the bottom plate (9), the second threaded rod (11) penetrates through the second transmission nut (10), the second roller (12) is installed at the bottom of the bottom plate (9), the fixture block (13) is arranged at the top of the installation plate (6), and the top of the fixture block (13) is provided with a connecting bolt (14), and the side of the connecting bolt (14) is provided with a welded workpiece (15).

2. The laser welding apparatus according to claim 1, characterized in that: the lifting installation structure is formed between the supporting legs (3) and the installation table (1) through springs (2), and the springs (2) are symmetrically arranged about a central axis of the installation table (1).

3. The laser welding apparatus according to claim 1, characterized in that: constitute the screw drive structure through first drive nut (5) between mounting panel (6) and first threaded rod (4), and for the integration setting between mounting panel (6) and curb plate (7) to constitute the slidable mounting structure through first gyro wheel (8) between curb plate (7) and bottom plate (9).

4. The laser welding apparatus according to claim 1, characterized in that: a spiral transmission structure is formed between the bottom plate (9) and the second threaded rod (11) through a second transmission nut (10), and a sliding installation structure is formed between the bottom plate (9) and the installation table (1) through a second roller (12).

5. The laser welding apparatus according to claim 2, characterized in that: a sliding installation structure is formed between the welded workpiece (15) and the installation plate (6) through a clamping block (13), and a fixed installation structure is formed between the welded workpiece (15) and the clamping block (13) through a connecting bolt (14).

6. The laser welding apparatus according to claim 2, characterized in that: a connecting arm (16) is installed above the installation table (1), a first adjusting block (17) is arranged on the outer wall of the connecting arm (16), a first worm member (18) is installed on the inner side of the first adjusting block (17), a first worm gear (19) is connected to the outer wall of the first worm member (18), a first connecting shaft (20) penetrates through the first worm gear (19), a first gear (21) is arranged on the side of the first connecting shaft (20), a first rack (22) is connected to the bottom of the first gear (21), a sliding connecting block (23) is installed on the side of the first connecting shaft (20), a second connecting shaft (24) penetrates through the inside of the sliding connecting block (23), a second gear (25) is arranged on the side of the second connecting shaft (24), and a second rack (26) is connected to the bottom of the second gear (25), the side of the second connecting shaft (24) is provided with a second worm gear piece (27), the outer wall of the second worm gear piece (27) is connected with a second worm rod piece (28), a second adjusting block (29) is arranged at the end of the second worm gear piece (27), and a laser welding head body (30) is installed at the bottom of the sliding connecting block (23).

7. The laser welding apparatus according to claim 6, characterized in that: a gear transmission structure is formed between the first connecting shaft (20) and the first rack (22) through a first gear (21), and the first gear (21) is symmetrically arranged relative to a central axis of the first connecting shaft (20).

8. The laser welding apparatus according to claim 6, characterized in that: the sliding connection block (23) and the welded workpiece (15) form a sliding installation structure through a first connection shaft (20), and the sliding connection block (23) and the welded workpiece (15) form a sliding installation structure through a second connection shaft (24).

9. The laser welding apparatus according to claim 6, characterized in that: and a rotating structure is formed between the second adjusting block (29) and the welded workpiece (15) through a second worm piece (28), and a gear transmission structure is formed between the second worm piece (28) and the second connecting shaft (24) through a second worm wheel piece (27).

10. A laser welding position error compensation method of a laser welding device is characterized by comprising the following steps:

s1, when the laser welding equipment vibrates during workpiece loading and unloading, the vibration is transmitted to the spring (2) and the supporting leg (3) through the mounting table (1), so that the supporting leg (3) performs elastic lifting sliding motion in the mounting table (1), the vibration kinetic energy is reduced by the spring (2), the vibration reduction function is realized, and the problem of equipment precision caused by vibration is avoided;

s2, the welded workpiece (15) and the clamping block (13) are fixed with each other through the connecting bolt (14), the welded workpiece (15) is quickly fixed above the mounting plate (6) through the sliding of the clamping block (13) and the adjusting groove at the top of the mounting plate (6), the mounting position of the whole of the clamping block (13) and the welded workpiece (15) can be freely adjusted as required through the arrangement of the adjusting groove at the top of the mounting plate (6), so that the applicability of the device in use is improved, and when the position difference required to be adjusted is large and the mounting position of the clamping block (13) is difficult to change for adjustment, the first threaded rod (4) is driven to rotate, so that the connecting thread between the first threaded rod (4) and the first transmission nut (5) is screwed, the spiral transmission is realized, and the first transmission nut (5) drives the mounting plate (6) and the side plate (7) to integrally adjust in the left-right direction, the friction force when the side plate (7) and the bottom plate (9) slide relatively is greatly reduced by the first idler wheel (8) arranged at the bottom of the side plate (7), on the other hand, the second threaded rod (11) is driven to rotate, the thread on the outer surface of the second threaded rod (11) is screwed with the internal thread of the second transmission nut (10), thereby the spiral transmission is realized between the second threaded rod (11) and the second transmission nut (10), the second transmission nut (10) drives the bottom plate (9) to slide in the front-back direction, the friction force when the bottom plate (9) slides is greatly reduced by the rolling between the second idler wheel (12) arranged at the bottom of the bottom plate (9) and the mounting table (1), the welded workpiece (15) fixed at the top of the mounting plate (6) can be greatly adjusted by the rotation of the first threaded rod (4) or the second threaded rod (11), the mountable range of the welded workpiece (15) is improved, and the practicability of the welding equipment is improved;

s3, when welding position errors are found after pre-welding, according to the error direction, firstly, the first adjusting block (17) is rotated and transmitted to adjust the front and back positions of the laser welding head body (30) installed at the bottom of the sliding connecting block (23), similarly, the second adjusting block (29) is rotated and transmitted to adjust the left and right positions of the laser welding head body (30) installed at the bottom of the sliding connecting block (23), the compensation adjustment of the welding position errors during the working of the laser welding head body (30) can be realized through the adjustment of the position of the laser welding head body (30), and the errors can be quickly compensated by workers in a manual adjusting mode without changing programs.

Technical Field

The invention relates to the technical field of laser welding equipment, in particular to a laser welding position error compensation method and laser welding equipment.

Background

Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source, and is one of important aspects of laser material processing technology application, and the welding process belongs to a heat conduction type, namely, laser radiation heats the surface of a workpiece, surface heat diffuses inwards through heat conduction, and the workpiece is melted to form a specific molten pool by controlling parameters such as the width, energy, peak power, repetition frequency and the like of laser pulse. A

Disclosure of Invention

The invention aims to provide a laser welding position error compensation method and laser welding equipment, aiming at solving the problems that the traditional laser welding position error compensation method and laser welding equipment in the background technology lack a good vibration reduction function, are inconvenient for fixing and position adjustment of a workpiece and lack a stable welding position error compensation function.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a laser welding position error compensation method and laser welding equipment, includes installation table and curb plate, the internally mounted of installation table has the spring, and the bottom of spring is provided with the supporting legs, first threaded rod is installed at the top of installation table, and the avris of first threaded rod is provided with first drive nut to the mounting panel is installed at first drive nut's top, the curb plate sets up in the bottom of mounting panel, and the bottom of curb plate installs first gyro wheel to the outside of first gyro wheel is provided with the bottom plate, second drive nut is installed to the bottom of bottom plate, and second drive nut's inside runs through there is the second threaded rod, the second gyro wheel is installed to the bottom of bottom plate, the top of mounting panel is provided with the fixture block, and the connecting bolt is installed at the top of fixture block to connecting bolt's avris is provided with by welding.

Preferably, the lifting mounting structure is formed between the supporting legs and the mounting table through springs, and the springs are symmetrically arranged about a central axis of the mounting table.

Preferably, constitute the screw drive structure through first drive nut between mounting panel and the first threaded rod, and for the integration setting between mounting panel and the curb plate to constitute the slidable mounting structure through first gyro wheel between curb plate and the bottom plate.

Preferably, a spiral transmission structure is formed between the bottom plate and the second threaded rod through a second transmission nut, and a sliding installation structure is formed between the bottom plate and the installation table through a second roller.

Preferably, a sliding installation structure is formed between the welded workpiece and the installation plate through a clamping block, and a fixed installation structure is formed between the welded workpiece and the clamping block through a connecting bolt.

Preferably, the connecting arm is arranged above the mounting table, the outer wall of the connecting arm is provided with a first adjusting block, and the inner side of the first adjusting block is provided with a first worm member, the outer wall of the first worm member is connected with a first worm gear piece, a first connecting shaft penetrates through the inner part of the first worm gear piece, and the side of the first connecting shaft is provided with a first gear, the bottom of the first gear is connected with a first rack, the side of the first connecting shaft is provided with a sliding connecting block, a second connecting shaft penetrates through the inside of the sliding connecting block, and a second gear is arranged at the side of the second connecting shaft, a second rack is connected with the bottom of the second gear, a second worm gear piece is arranged at the side of the second connecting shaft, the outer wall of the second worm gear piece is connected with a second worm rod piece, and the end of the second worm gear piece is provided with a second adjusting block, and the bottom of the sliding connecting block is provided with a laser welding head body.

Preferably, a gear transmission structure is formed between the first connecting shaft and the first rack through a first gear, and the first gear is symmetrically arranged about a central axis of the first connecting shaft.

Preferably, a sliding installation structure is formed between the sliding connection block and the welded workpiece through a first connection shaft, and a sliding installation structure is formed between the sliding connection block and the welded workpiece through a second connection shaft.

Preferably, a rotating structure is formed between the second adjusting block and the welded workpiece through a second worm piece, and a tooth transmission structure is formed between the second worm piece and the second connecting shaft through a second worm wheel piece.

Preferably, the laser welding position error compensation method and the laser welding apparatus are characterized by comprising the following steps:

s1, when the laser welding equipment vibrates during workpiece loading and unloading, the vibration is transmitted to the spring and the supporting legs through the mounting table, so that the supporting legs perform elastic lifting sliding motion in the mounting table, the kinetic energy of the vibration is reduced by the spring, the vibration reduction function is realized, and the problem of equipment precision caused by the vibration is avoided;

s2, the welded workpiece and the clamping block are fixed with each other through the connecting bolt, the welded workpiece is quickly fixed above the mounting plate through the sliding of the clamping block and the adjusting groove at the top of the mounting plate, the mounting position of the whole clamping block and the welded workpiece can be freely adjusted as required through the arrangement of the adjusting groove at the top of the mounting plate, the applicability of the device is improved when in use, when the position difference needing to be adjusted is large and the mounting position of the clamping block is difficult to change for adjustment, the first threaded rod is driven to rotate, so that the connecting thread between the first threaded rod and the first transmission nut is screwed, the screw transmission is realized, the first transmission nut drives the mounting plate and the whole side plate to carry out the adjustment in the left-right direction, and the friction force when the side plate and the bottom plate slide relatively is greatly reduced through the first roller wheel arranged at the bottom of the side plate, on the other hand, the second threaded rod is driven to rotate, so that the threads on the outer surface of the second threaded rod and the threads inside the second transmission nut are mutually screwed, the screw transmission between the second threaded rod and the second transmission nut is realized, the second transmission nut drives the bottom plate to slide in the front-back direction, the friction force borne by the bottom plate during sliding is greatly reduced through the rolling between a second roller arranged at the bottom of the bottom plate and the mounting table, the welded workpiece fixed at the top of the mounting plate can be greatly adjusted through the rotation of the first threaded rod or the second threaded rod, the mountable range of the welded workpiece is improved, and the practicability of the welding equipment is improved by a user;

s3, when welding position errors are found after pre-welding, according to the error direction, firstly, the first adjusting block is rotated and transmitted, so that the front and rear positions of the laser welding head body installed at the bottom of the sliding connection block can be adjusted, similarly, the left and right positions of the laser welding head body installed at the bottom of the sliding connection block can be adjusted by rotating the second adjusting block and transmitting, compensation and adjustment of the welding position errors of the laser welding head body during working can be realized by adjusting the position of the laser welding head body, and the errors can be quickly compensated by workers in a manual adjusting mode without changing programs.

Compared with the prior art, the invention has the beneficial effects that: the laser welding position error compensation method and the laser welding equipment have a good vibration reduction function, are convenient for fixing and position adjustment of workpieces, and have a stable welding position error compensation function;

1. when the laser welding equipment vibrates during workpiece loading and unloading, the vibration is transmitted to the spring and the supporting legs through the mounting table, so that the supporting legs perform elastic lifting sliding motion in the mounting table, the kinetic energy of the vibration is reduced by the spring, the vibration reduction function is realized, and the problem of equipment precision caused by the vibration is avoided;

2. the laser welding equipment fixes a welded workpiece and a clamping block mutually through a connecting bolt, enables the welded workpiece to be quickly fixed above a mounting plate through the sliding of the clamping block and a mounting plate top adjusting groove, enables the mounting position of the whole clamping block and the welded workpiece to be freely adjusted as required through the arrangement of the adjusting groove on the mounting plate top, thereby improving the applicability of the equipment when in use, and enables a first transmission nut to drive the mounting plate and the whole side plate to be adjusted in the left-right direction through driving the first threaded rod to rotate when the position difference needing to be adjusted is large and the mounting position of the clamping block is difficult to change for adjustment, and enables the friction force when the side plate and the bottom plate slide relatively is greatly reduced through a first roller arranged at the bottom of the side plate, on the other hand, the second threaded rod is driven to rotate, so that the threads on the outer surface of the second threaded rod and the threads inside the second transmission nut are mutually screwed, the screw transmission between the second threaded rod and the second transmission nut is realized, the second transmission nut drives the bottom plate to slide in the front-back direction, the friction force borne by the bottom plate during sliding is greatly reduced through the rolling between a second roller arranged at the bottom of the bottom plate and the mounting table, the welded workpiece fixed at the top of the mounting plate can be greatly adjusted through the rotation of the first threaded rod or the second threaded rod, the mountable range of the welded workpiece is improved, and the practicability of the welding equipment is improved by a user;

3. when welding position errors are found after pre-welding, according to the error direction, firstly, the first adjusting block is rotated to drive the first worm piece to rotate, then worm and gear transmission is carried out between the first worm piece and the first worm wheel piece, so that the first worm wheel piece rotates by taking the central axis of the first connecting shaft as the axis, the first connecting shaft is synchronously driven to drive the first gear to rotate, thereby the gear transmission is carried out between the first gear and the first rack, further the first gear drives the first connecting shaft to move in the horizontal front-back direction in the connecting arm, meanwhile, the first connecting shaft drives the sliding connecting block to slide along the outer wall of the second connecting shaft, thereby the front-back position of a laser welding head body arranged at the bottom of the sliding connecting block is adjusted, similarly, the second worm piece is driven to rotate by rotating the second adjusting block, and simultaneously, worm and gear transmission is carried out between the second worm piece and the second worm wheel piece, make second worm gear spare use second connecting axle axis to rotate and make the synchronous rotation of second gear as the axle, and then make and realize the tooth transmission motion between the second rack that second gear and meshing are connected, thereby make the second gear promote the second connecting axle and move along the horizontal left and right sides direction in the linking arm is inside, the second connecting axle drives sliding connection piece and slides along first connecting axle outer wall simultaneously, realize the regulation to the position about the laser welder head body of sliding connection piece bottom installation, through the regulation to laser welder head body position, can realize the compensation regulation to laser welder head body during operation welding position error, through manual regulation mode, can realize that the workman is swiftly compensated the error under the condition that need not to change the procedure.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 3 is a schematic sectional view of the connection between the supporting legs and the mounting table of the present invention;

FIG. 4 is a schematic side sectional view of a connection between a second threaded rod and a second drive nut according to the present invention;

FIG. 5 is a schematic cross-sectional view of the connection between the mounting plate and the fixture block of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 7 is a schematic side sectional view of the joint between the workpiece to be welded and the sliding joint block according to the present invention.

In the figure: 1. installing a table; 2. a spring; 3. supporting legs; 4. a first threaded rod; 5. a first drive nut; 6. mounting a plate; 7. a side plate; 8. a first roller; 9. a base plate; 10. a second drive nut; 11. a second threaded rod; 12. a second roller; 13. a clamping block; 14. a connecting bolt; 15. a workpiece to be welded; 16. a connecting arm; 17. a first regulating block; 18. a first worm member; 19. a first worm gear; 20. a first connecting shaft; 21. a first gear; 22. a first rack; 23. a sliding connection block; 24. a second connecting shaft; 25. a second gear; 26. a second rack; 27. a second worm gear; 28. a second worm member; 29. a second regulating block; 30. a laser welding head body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a laser welding position error compensation method and a laser welding device comprise an installation table 1, a spring 2, a supporting leg 3, a first threaded rod 4, a first transmission nut 5, an installation plate 6, a side plate 7, a first roller 8, a bottom plate 9, a second transmission nut 10, a second threaded rod 11, a second roller 12, a clamping block 13, a connecting bolt 14, a welded workpiece 15, a connecting arm 16, a first adjusting block 17, a first worm rod piece 18, a first worm wheel piece 19, a first connecting shaft 20, a first gear 21, a first rack 22, a sliding connecting block 23, a second connecting shaft 24, a second gear 25, a second rack 26, a second worm wheel piece 27, a second worm rod piece 28, a second adjusting block 29 and a laser welding head body 30, wherein the spring 2 is installed inside the installation table 1, the supporting leg 3 is arranged at the bottom of the spring 2, the first threaded rod 4 is installed at the top of the installation table 1, a first transmission nut 5 is arranged on the side of the first threaded rod 4, a mounting plate 6 is mounted at the top of the first transmission nut 5, a side plate 7 is arranged at the bottom of the mounting plate 6, a first roller 8 is mounted at the bottom of the side plate 7, a bottom plate 9 is arranged on the outer side of the first roller 8, a second transmission nut 10 is mounted at the bottom of the bottom plate 9, a second threaded rod 11 penetrates through the second transmission nut 10, a second roller 12 is mounted at the bottom of the bottom plate 9, a clamping block 13 is arranged at the top of the mounting plate 6, a connecting bolt 14 is mounted at the top of the clamping block 13, and a welded workpiece 15 is arranged on the side of the connecting bolt 14;

furthermore, a lifting mounting structure is formed between the supporting legs 3 and the mounting table 1 through springs 2, the springs 2 are symmetrically arranged about the central axis of the mounting table 1, and through the arrangement of the lifting structure, the kinetic energy of vibration is reduced by the springs 2, so that the vibration reduction function is realized, and the problem of equipment precision caused by vibration is avoided;

furthermore, a spiral transmission structure is formed between the mounting plate 6 and the first threaded rod 4 through a first transmission nut 5, the mounting plate 6 and the side plate 7 are integrally arranged, a sliding mounting structure is formed between the side plate 7 and the bottom plate 9 through a first roller 8, and the mounting plate 6 and the welded workpiece 15 can be controlled to be integrally slid in the horizontal front-back direction to adjust the position by driving the first threaded rod 4 to rotate through the arrangement of the spiral transmission structure and the sliding structure;

furthermore, a spiral transmission structure is formed between the bottom plate 9 and the second threaded rod 11 through a second transmission nut 10, a sliding installation structure is formed between the bottom plate 9 and the installation table 1 through a second roller 12, and the sliding adjustment position of the installation plate 6 and the welded workpiece 15 in the horizontal front-back direction can be controlled by driving the second threaded rod 11 to rotate through the arrangement of the spiral transmission structure and the sliding structure;

furthermore, a sliding installation structure is formed between the welded workpiece 15 and the mounting plate 6 through a fixture block 13, a fixed installation structure is formed between the welded workpiece 15 and the fixture block 13 through a connecting bolt 14, and through the arrangement of the sliding structure and the fixed structure, workers can quickly fix the welded workpieces 15 of various sizes on the top of the mounting plate 6, so that the work time for assembling and disassembling the workpieces is reduced, and the overall work efficiency is improved;

further, a connecting arm 16 is installed above the installation table 1, a first adjusting block 17 is arranged on the outer wall of the connecting arm 16, a first worm member 18 is installed on the inner side of the first adjusting block 17, a first gear member 19 is connected to the outer wall of the first worm member 18, a first connecting shaft 20 penetrates through the first worm member 19, a first gear 21 is arranged on the side of the first connecting shaft 20, a first rack 22 is connected to the bottom of the first gear 21, a sliding connecting block 23 is installed on the side of the first connecting shaft 20, a second connecting shaft 24 penetrates through the sliding connecting block 23, a second gear 25 is arranged on the side of the second connecting shaft 24, a second rack 26 is connected to the bottom of the second gear 25, a second worm member 27 is arranged on the side of the second connecting shaft 24, a second worm member 28 is connected to the outer wall of the second worm member 27, and a second adjusting block 29 is arranged at the end of the second worm member 27, the bottom of the sliding connecting block 23 is provided with a laser welding head body 30;

further, a gear transmission structure is formed between the first connecting shaft 20 and the first rack 22 through the first gear 21, the first gear 21 is symmetrically arranged about the central axis of the first connecting shaft 20, and through the arrangement of the gear transmission structure, the first connecting shaft 20 can be driven to push the sliding connecting block 23 and the laser welding head body 30 to integrally move along the horizontal front-back direction by rotating the first adjusting block 17, so that the front-back position compensation of the welding point of the laser welding head body 30 is realized;

furthermore, a sliding installation structure is formed between the sliding connection block 23 and the welded workpiece 15 through the first connection shaft 20, and a sliding installation structure is formed between the sliding connection block 23 and the welded workpiece 15 through the second connection shaft 24, so that the sliding connection block 23 can be adjusted in a sliding manner in the left-right direction along the outer wall of the first connection shaft 20 or in a sliding manner in the front-back direction along the outer wall of the second connection shaft 24 through the arrangement of the sliding structure, and further the laser welding head body 30 is driven to adjust the corresponding position;

furthermore, a rotating structure is formed between the second adjusting block 29 and the welded workpiece 15 through the second worm member 28, a gear transmission structure is formed between the second worm member 28 and the second connecting shaft 24 through the second worm member 27, and the second gear 25 and the second connecting shaft 24 can be integrally driven by rotating the second adjusting block 29 through the arrangement of the rotating structure and the gear transmission structure, and move along the left-right direction at the top of the second rack 26, so that the left-right position compensation of the welding point of the laser welding head body 30 is realized;

further, a laser welding position error compensation method and a laser welding device are characterized by comprising the following steps:

s1, when the laser welding equipment vibrates during workpiece loading and unloading, the vibration is transmitted to the spring 2 and the supporting leg 3 through the mounting table 1, so that the supporting leg 3 performs elastic lifting sliding motion in the mounting table 1, the kinetic energy of the vibration is reduced by the spring 2, the vibration reduction function is realized, and the problem of equipment precision caused by the vibration is avoided;

s2, the welded workpiece 15 and the fixture block 13 are fixed to each other through the connecting bolt 14, the welded workpiece 15 is quickly fixed above the mounting plate 6 through the sliding of the fixture block 13 and the adjusting groove at the top of the mounting plate 6, the mounting position of the whole of the fixture block 13 and the welded workpiece 15 can be freely adjusted as required through the arrangement of the adjusting groove at the top of the mounting plate 6, so that the applicability of the device in use is improved, when the position difference required to be adjusted is large and the mounting position of the fixture block 13 is difficult to change for adjustment, the first threaded rod 4 is driven to rotate, so that the connecting threads between the first threaded rod 4 and the first transmission nut 5 are screwed together to realize screw transmission, the first transmission nut 5 drives the mounting plate 6 and the side plate 7 to integrally adjust in the left-right direction, and the friction force generated when the side plate 7 and the bottom plate 9 slide relatively is greatly reduced through the first roller 8 arranged at the bottom of the side plate 7, on the other hand, the second threaded rod 11 is driven to rotate, so that the threads on the outer surface of the second threaded rod 11 are screwed with the threads inside the second transmission nut 10, the second threaded rod 11 and the second transmission nut 10 are in spiral transmission, the second transmission nut 10 drives the bottom plate 9 to slide in the front-back direction, the friction force borne by the bottom plate 9 during sliding is greatly reduced through rolling between the second idler wheel 12 installed at the bottom of the bottom plate 9 and the mounting table 1, the welded workpiece 15 fixed at the top of the mounting plate 6 can be greatly adjusted through rotation of the first threaded rod 4 or the second threaded rod 11, the mounting range of the welded workpiece 15 is enlarged, and the practicability of the welding equipment is improved;

s3, when welding position errors are found after pre-welding, according to the error direction, the laser welding equipment firstly rotates the first adjusting block 17 to realize the adjustment of the front and back positions of the laser welding head body 30 arranged at the bottom of the sliding connecting block 23 after transmission, similarly, the left and right positions of the laser welding head body 30 arranged at the bottom of the sliding connecting block 23 are adjusted after transmission by rotating the second adjusting block 29, the compensation adjustment of the welding position errors during the work of the laser welding head body 30 can be realized through the adjustment of the position of the laser welding head body 30, and the errors can be quickly compensated by workers in a manual adjusting mode without changing programs.

The working principle is as follows: when the laser welding position error compensation method and the laser welding equipment are used, as shown in the figures 1-3, when the laser welding equipment is used for loading and unloading workpieces to generate vibration, the vibration is transmitted to the spring 2 and the supporting legs 3 through the mounting table 1, so that the supporting legs 3 perform elastic lifting sliding motion in the mounting table 1, the kinetic energy of the vibration is reduced by the spring 2, the vibration reduction function is realized, and the problem of equipment precision caused by the vibration is avoided;

according to the drawings of fig. 1, 2, 4 and 5, the laser welding device fixes the welded workpiece 15 and the fixture block 13 to each other through the connecting bolt 14, and the welded workpiece 15 is quickly fixed above the mounting plate 6 through the sliding of the fixture block 13 and the adjusting groove at the top of the mounting plate 6, and the mounting position of the whole of the fixture block 13 and the welded workpiece 15 can be freely adjusted as required through the arrangement of the adjusting groove at the top of the mounting plate 6, so that the applicability of the device in use is improved, and when the position difference required to be adjusted is large and the mounting position of the fixture block 13 is difficult to change for adjustment, the first threaded rod 4 is driven to rotate, so that the connecting thread between the first threaded rod 4 and the first transmission nut 5 is screwed, the screw transmission is realized, and the first transmission nut 5 drives the mounting plate 6 and the side plate 7 to integrally adjust in the left and right directions, the friction force when the side plate 7 and the bottom plate 9 slide relatively is greatly reduced through the first roller 8 arranged at the bottom of the side plate 7, on the other hand, the second threaded rod 11 is driven to rotate, so that the thread on the outer surface of the second threaded rod 11 is mutually screwed with the inner thread of the second transmission nut 10, thereby realizing the screw transmission between the second threaded rod 11 and the second transmission nut 10, so that the second transmission nut 10 drives the bottom plate 9 to slide in the front-back direction, the friction force applied to the bottom plate 9 when sliding is greatly reduced through the rolling between the second roller 12 arranged at the bottom of the bottom plate 9 and the mounting table 1, by rotating the first threaded rod 4 or the second threaded rod 11, the welded workpiece 15 fixed on the top of the mounting plate 6 can be greatly adjusted, the mountable range of the welded workpiece 15 is improved, and the practicability of the welding equipment is improved;

according to fig. 1, 2, 6 and 7, when a welding position error is found after pre-welding, according to an error direction, the laser welding apparatus first rotates the first adjusting block 17 to drive the first worm member 18 to rotate, then performs worm and gear transmission between the first worm member 18 and the first worm member 19, so that the first worm member 19 rotates around the central axis of the first connecting shaft 20, and synchronously causes the first connecting shaft 20 to drive the first gear 21 to rotate, so that the first gear 21 and the first rack 22 perform gear transmission, further causes the first gear 21 to drive the first connecting shaft 20 to move horizontally back and forth inside the connecting arm 16, and simultaneously causes the first connecting shaft 20 to drive the sliding connecting block 23 to slide along the outer wall of the second connecting shaft 24, thereby adjusting the back and forth position of the laser welding head body 30 installed at the bottom of the sliding connecting block 23, the second worm member 28 is driven to rotate by rotating the second adjusting block 29, and simultaneously, worm and gear transmission is performed between the second worm member 28 and the second worm member 27, so that the second worm member 27 rotates by taking the central axis of the second connecting shaft 24 as the axis and the second gear 25 synchronously rotates, and further, gear transmission movement is realized between the second gear 25 and the second rack 26 which is connected in a meshed manner, so that the second gear 25 pushes the second connecting shaft 24 to move horizontally and leftwards and rightwards inside the connecting arm 16, and simultaneously, the second connecting shaft 24 drives the sliding connecting block 23 to slide along the outer wall of the first connecting shaft 20, so that the left and right positions of the laser welding head body 30 mounted at the bottom of the sliding connecting block 23 are adjusted, and compensation adjustment of welding position errors during the operation of the laser welding head body 30 can be realized by the above adjustment of the position of the laser welding head body 30, and by a manual adjusting mode, the error can be quickly compensated by workers under the condition of not changing programs.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.