Laser welding robot

Abstract

The invention relates to the field of laser welding, and discloses a laser welding robot which comprises a base, a sliding disc is slidably mounted in the base, a mechanical arm is arranged on the sliding disc, a first adjusting block is rotatably mounted at the end of the mechanical arm, and a second adjusting block is fixedly mounted at the end of the first adjusting block. A first anti-collision protection device is fixedly installed at the bottom end of the second adjusting block, a second anti-collision protection device is fixedly installed on the lower portion of the first anti-collision protection device, and a welding piece is rotationally installed at the bottom end of the second anti-collision protection device. A second sliding column in the first anti-collision protection device slides on the outer wall of a first fixing rod and the outer wall of a bottom protruding plate, the height is adjusted after a workpiece is collided or shaken, the problem that a welding head is bent due to the fact that a welding part shakes and continuously collides with the workpiece is solved, and a limiting protection part rotates so that the elastic force of a first spring can be changed; and the overall stress of the welding part is adjusted when the welding gas pipe sprays gas, the influence during welding is reduced, and the welding part is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of welding robots, and more specifically, to a laser welding robot. Background Art

[0002] Laser welding robots use semiconductor lasers as welding heat sources and are widely used in multiple fields, including automobile manufacturing, aerospace, electronic equipment, etc.; in automobile manufacturing, laser welding robots can quickly complete the welding of body parts and improve production efficiency; in the aerospace field, laser welding robots are highly favored due to their high precision requirements; in electronic equipment manufacturing, laser welding robots are often used for welding parts of electronic equipment such as mobile phones and laptops.

[0003] The patent with publication number CN105364306A discloses a laser welding robot, including a laser welding head and a control board located on a secondary rotating shaft, the laser welding head includes a laser nozzle and a circular swinging cylinder, the laser nozzle is located in the circular swinging cylinder, four evenly distributed electromagnets are provided on the same circumference of the inner wall of the circular swinging cylinder, the electromagnets are electrically connected to the control board, the four electromagnets form an annular cavity, an annular magnet is installed at the tail of the laser nozzle, and the annular magnet is located in the annular cavity, which has the characteristic of low energy consumption when welding tiny straight seams.

[0004] Although the above-mentioned device consumes less energy when welding tiny straight seams during use, the welding robot will change its position during the welding process, especially when the welding head is at a welding angle, the mechanical arm of the welding robot will shake, and welding while shaking is prone to collision with the welding gun (that is, the welding gun collides with the welding workpiece), causing damage to the welding gun. Although a metal tube can be set at the end of the welding gun to adapt to the collision angle when the gun hits, if the gas is blown out with great force during welding, the metal tube will automatically bend under the force during welding, resulting in inaccurate welding. Summary of the invention

[0005] The present invention provides a laser welding robot, which solves the technical problem in the related art that when the welding robot turns a corner during welding, the mechanical arm of the welding robot will shake, causing the welding gun to collide during welding.

[0006] The present invention provides a laser welding robot, comprising a base, a sliding plate is slidably installed inside the base, a mechanical arm is arranged on the sliding plate, a first adjusting block is rotatably installed at the end of the mechanical arm, a second adjusting block is fixedly installed at the end of the first adjusting block, a first anti-collision protection device is fixedly installed at the bottom end of the second adjusting block, a second anti-collision protection device is arranged at the lower part of the first anti-collision protection device, a welding piece is arranged at the bottom end of the second anti-collision protection device, the first anti-collision protection device is used to adjust the position of the welding piece to extend and retract after the welding piece collides, and the second anti-collision protection device is used to adjust the position of the welding piece after the collision The angle of the connecting part; the first anti-collision protection device includes a first fixed rod, a second sliding column and a limit protection part, the first fixed rod is provided with a first tooth inside, and the second sliding column is lifted up after the welding part collides, and the second sliding column slides on the outer wall of the first fixed rod, driving the limit protection part to slide on the outer wall of the first tooth for limiting; the second anti-collision protection device includes a protection adjustment ball, a direction transmission assembly and a first transmission protection assembly, after the welding part shakes and collides, the protection adjustment ball drives the direction of the direction transmission assembly to change, so that the first transmission protection assembly limits the angle of the welding part when the direction changes.

[0007] As a further optimization scheme of the present invention, the first anti-collision protection device also includes a first fixed rod fixedly installed at the bottom end of the second adjustment block, a groove is opened inside the first fixed rod, a plurality of first teeth are fixedly installed inside the groove, a bottom convex plate is fixedly installed at the bottom end of the first fixed rod, a second sliding column is slidably installed on the outer wall of the bottom convex plate, and a limiting protection member is fixedly installed on the outer wall of the upper end of the second sliding column, and the limiting protection member is used to engage with the first teeth to limit the second sliding column.

[0008] As a further optimization scheme of the present invention, the limit protection member includes two second fixed columns fixedly installed on the outer wall of the second sliding column, a second fixed plate is fixedly installed on the end of the second fixed column, a sixth sliding column is slidably installed inside the second fixed plate, a second limit plate is fixedly installed on the end of the sixth sliding column, a second spring is fixedly installed on the top of the limit protection member, the end of the second spring is connected to the side wall of the second fixed plate, and the end of the second limit plate is meshed with the first tooth.

[0009] As a further optimization scheme of the present invention, a first spring is fixedly installed on the top of the second sliding column, and a first slide plate is fixedly installed on the top of the first spring. The first slide plate slides on the outer wall of the first fixed rod, and two limit protection parts are rotatably installed on the top of the first slide plate. The limit protection parts pass through the interior of the second adjusting block and are threadedly installed on the second adjusting block.

[0010] As a further optimization scheme of the present invention, the second anti-collision protection device includes a plurality of first support columns fixedly installed at the bottom end of the second sliding column, the bottom end of the first support column is fixedly installed with a protection adjustment ring, the interior of the protection adjustment ring is movably installed with a protection adjustment ball, the bottom end of the protection adjustment ball is fixedly installed with a bottom connecting block, the bottom connecting block is rotatably installed with the welding part, the top of the protection adjustment ball is fixedly installed with a telescopic rod, the top of the telescopic rod is fixedly installed with a direction transmission assembly, the top of the direction transmission assembly is fixedly installed with a first transmission protection assembly, the interior of the first transmission protection assembly is provided with a connecting assembly, the vibration of the welding part drives the protection adjustment ball to rotate inside the protection adjustment ring, the rotation of the protection adjustment ball drives the telescopic rod to telescopically adjust the direction of the direction transmission assembly, when the direction of the direction transmission assembly is adjusted, the first transmission protection assembly moves to limit the direction of the direction transmission assembly, and the connecting assembly is used to reset the first transmission protection assembly.

[0011] As a further optimization scheme of the present invention, the direction transmission assembly includes a transmission ball fixedly mounted on the top of the telescopic rod, a spherical transmission block is movably mounted on the outer wall of the transmission ball, and the top of the spherical transmission block is connected to the first transmission protection assembly.

[0012] As a further optimization scheme of the present invention, the first transmission protection component includes an anti-collision protection piece fixedly installed on the top of the spherical transmission block, and a third sliding column is slidably installed inside the anti-collision protection piece; the anti-collision protection piece includes a bottom fixed rod fixedly installed on the top of the center of the spherical transmission block, and a limit slip ring is fixedly installed on the top of the bottom fixed rod, and the third sliding column slides on the inner wall of the limit slip ring, and two limit fixing columns are fixedly installed on the top of the outer wall of the limit slip ring, and a limit lifting column is fixedly installed on the top of the limit fixing column, and a fifth sliding column is slidably installed inside the limit lifting column, and the A tooth block is provided inside the anti-collision protection piece, and a spring is provided on the outer wall of the fifth sliding column for engaging with the tooth block to limit the third sliding column; second transmission protection pieces are fixedly installed at both ends of the third sliding column, and the second transmission protection piece has the same structure as the anti-collision protection piece, and a fourth sliding column is slidably installed inside the second transmission protection piece, and a third tooth is provided inside the fourth sliding column, and a third fixed plate is fixedly installed at both ends of the fourth sliding column, and a third fixed rod is fixedly installed on the top end of the third fixed plate, and the top end of the third fixed rod is fixedly installed on the bottom end of the second sliding column.

[0013] As a further optimization scheme of the present invention, the outer walls of the fourth slide column and the third slide column are respectively provided with a third spring and a fourth spring, and the outer wall of the fourth slide column is provided with a spring adjustment assembly, and the spring adjustment assembly includes two spring connecting blocks slidably installed on the outer wall of the fourth slide column and symmetrical to each other, the internal thread of the spring connecting block is installed with a threaded rod, and the end of the threaded rod is provided with a hexagonal rotating mouth, and the hexagonal rotating mouth is used to facilitate the adjustment and rotation of the tool, the end of the third spring is fixedly installed with the side wall of the spring connecting block, and the outer wall of the third slide column is also provided with a second adjusting member with the same structure as the spring connecting block, the threaded rod and the hexagonal rotating mouth, and the top of the second transmission protection member and the top of the anti-collision protection member are provided with a connecting assembly, and the connecting assembly is used to reset the first transmission protection assembly.

[0014] As a further optimization scheme of the present invention, the connecting assembly includes a first connecting rod fixedly installed on the top of the second transmission protection member, a connecting groove is arranged inside the first connecting rod, a first connecting block is slidingly arranged inside the connecting groove, and the bottom end of the first connecting block is fixedly installed on the top of the fifth slide column.

[0015] As a further optimization scheme of the present invention, the welding part includes a welding rotating seat rotatably installed inside the bottom connecting block, a first fixed block is fixedly installed on the end of the welding rotating seat, a welding head is fixedly installed at the lower end center of the first fixed block, a welding air pipe is fixedly installed on the side wall of the first fixed block, and a detection device is fixedly installed on the side wall of the first fixed block, and the detection device is used to detect the angle of the welding head; the detection device includes two square protrusions fixedly installed symmetrically on the two side walls of the first fixed block, a clamping rod is slidably installed on the end of the square protrusion, a measuring rod is slidably installed inside the clamping rod, and a U-shaped groove is fixedly installed on the end of the measuring rod, and the outer wall of the U-shaped groove contacts the outer wall of the welding head.

[0016] The beneficial effects of the present invention are: 1. A laser welding robot described in the present invention adjusts the height of the welded part after it collides or shakes with the workpiece by sliding the second sliding column inside the first anti-collision protection device on the outer wall of the first fixed rod and the bottom convex plate, thereby preventing the welded part from shaking after the collision and continuously colliding with the workpiece, causing the problem of bending of the welding head. The rotation of the limiting protection part changes the elastic force of the first spring, thereby adjusting the overall force on the welded part when the welding gas pipe sprays gas, reducing problems occurring during welding, and protecting the welded part.

[0017] 2. A laser welding robot described in the present invention drives the direction adjustment of the direction transmission component through the protection adjustment ball inside the second anti-collision protection device, thereby driving the anti-collision protection part and the third sliding column inside the first transmission protection component to move, memorize the direction change of the welding part after the collision and shaking, and prevent the welding head from continuously contacting the workpiece and causing stress deformation during the shaking process of the welding part. A connecting component is arranged inside the first transmission protection component, which can automatically reset after the position of the first transmission protection component is adjusted, so that the direction of the welding part can be quickly adjusted to facilitate continuous welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the appearance diagram of the overall device of the present invention; Figure 2 It is a side view of the overall device of the present invention; Figure 3 is a position connection diagram of the first anti-collision protection device and the second anti-collision protection device of the present invention; Figure 4 It is a transmission connection diagram of the first anti-collision protection device and the second anti-collision protection device of the present invention; Figure 5 is a cross-sectional view of the internal structure of the first anti-collision protection device of the present invention; Figure 6 is a front view of the internal structure of the second anti-collision protection device of the present invention; Figure 7 It is a connection diagram of the internal part of the first transmission protection component of the present invention; Figure 8 It is the overall structure transmission diagram of the first transmission protection component of the present invention; Fig. 9 It is a structural diagram of the detection device of the present invention.

[0019] In the figure: 1. Base; 11. Wheel; 12. Slide plate; 13. Mechanical arm; 14. First adjustment block; 141. Second adjustment block; 15. Welding piece; 151. First fixing block; 152. Welding head; 153. Welding air pipe; 154. Welding rotating seat; 2. first anti-collision protection device; 21. first slide plate; 22. first fixing rod; 221. first tooth; 222. bottom convex plate; 23. second slide column; 24. first spring; 25. position limiting protection member; 251. second fixing column; 252. second fixing plate; 253. sixth slide column; 254. second position limiting plate; 255. second spring; 3. Second anti-collision protection device; 31. First support column; 32. Protection adjustment ring; 33. Protection adjustment ball; 34. Bottom connection block; 35. Telescopic rod; 36. Direction transmission assembly; 361. Transmission ball; 362. Ball transmission block; 37. First transmission protection assembly; 371. Anti-collision protection piece; 3711. Bottom fixing rod; 3712. Limiting slip ring; 3713. Limiting fixing column; 3714. Limiting lifting column; 3715. Fifth sliding column; 372 , third slide column; 3721, fourth spring; 373, second transmission protection member; 374, fourth slide column; 3741, third spring; 375, third tooth; 376, third fixing plate; 377, third fixing rod; 38, spring adjustment assembly; 381, spring connecting block; 382, ​​threaded rod; 383, hexagonal rotating port; 384, second adjusting member; 39, connecting assembly; 391, first connecting rod; 392, connecting slide groove; 393, first connecting block; 4. Detection device; 41. Square protrusion; 42. Clamping rod; 43. Measuring rod; 44. U-shaped groove. DETAILED DESCRIPTION

[0020] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0021] like Figures 1 to 7As shown, a laser welding robot described in an embodiment of the present invention includes a base 1, a sliding plate 12 is slidably installed inside the base 1, a mechanical arm 13 is arranged on the sliding plate 12, a first adjusting block 14 is rotatably installed at the end of the mechanical arm 13, a second adjusting block 141 is fixedly installed at the end of the first adjusting block 14, a first anti-collision protection device 2 is fixedly installed at the bottom end of the second adjusting block 141, a second anti-collision protection device 3 is arranged at the lower part of the first anti-collision protection device 2, a welding piece 15 is arranged at the bottom end of the second anti-collision protection device 3, the first anti-collision protection device 2 is used to adjust the position of the welding piece 15 to retract after the welding piece 15 collides, and the second anti-collision protection device 3 is used to adjust the welding piece 15 after the collision 5; the first anti-collision protection device 2 includes a first fixed rod 22, a second slide column 23 and a limit protection member 25, the first fixed rod 22 is provided with a first tooth 221 inside, and the second slide column 23 is lifted up after the welding part 15 collides, and the second slide column 23 slides on the outer wall of the first fixed rod 22, driving the limit protection member 25 to slide on the outer wall of the first tooth 221 for limiting; the second anti-collision protection device 3 includes a protection adjustment ball 33, a direction transmission component 36 and a first transmission protection component 37, after the welding part 15 generates a shaking collision, the protection adjustment ball 33 drives the direction of the direction transmission component 36 to change, so that the first transmission protection component 37 limits the angle of the welding part 15 when the direction changes.

[0022] It should be noted that when the laser welding robot is welding the periphery of the workpiece, since the slide plate 12 and the mechanical arm 13 are driven by a motor, when the mechanical arm 13 drives the welding piece 15 to change position or quickly turn and weld, the welding piece 15 will shake when the motor drives the mechanical arm 13 to move and stop, and the problem of hitting the gun may occur, that is, the welding piece 15 collides with the workpiece or the fixture. When hitting the gun, even if the motor driving the mechanical arm 13 stops immediately, the mechanical arm 13 will still swing. During the swinging process, the mechanical arm 13 will drive the welding piece 15 to collide with the workpiece many times. The collision will cause damage to the workpiece and the welding piece 15. The welding piece 15 cannot react quickly after colliding with the workpiece, thereby reducing the possibility of multiple collisions of the welding piece 15, thereby protecting the workpiece and the welding piece 15. In order to solve this problem, the following improvements have been made; First, the workpiece is mounted on the welding area of ​​the base 1. A plurality of wheels 11 are fixedly mounted on the bottom edge of the base 1 to facilitate the movement of the base 1. Then, the motor is started to drive the sliding plate 12 and the mechanical arm 13 to move, thereby driving the first adjustment block 14 to move the welding piece 15 to the welding position of the workpiece. Then, the workpiece is welded. When the motor drives the mechanical arm 13 and the welding piece 15 to weld to the corner position of the workpiece, the mechanical arm 13 will cause the welding piece 15 to shake due to the turning. If the shaking amplitude is too large, the problem of collision with the gun may occur. The first adjusting block 14 is provided with a second adjusting block 141, and the bottom end of the second adjusting block 141 is provided with a first anti-collision protection device 2. When a collision occurs, the welding piece 15 will first squeeze the second anti-collision protection device 3, and the second anti-collision protection device 3 will then drive the second sliding column 23 to slide on the outer wall of the first fixed rod 22, and a limiting protection member 25 is provided on the outside of the second sliding column 23, so that when the second sliding column 23 slides toward the top end of the first fixed rod 22, the limiting protection member 25 can limit the second sliding column 23 to prevent the welding piece 15 from During the shaking process, the welding part 15 continuously collides with the workpiece, which plays a role in protecting the welding part 15. During the shaking process of the welding part 15, the shaking direction of the welding part 15 may be arbitrary. Therefore, a second anti-collision protection device 3 is provided at the lower end of the second slide column 23. When the welding part 15 shakes, the welding part 15 will drive the protection adjustment ball 33 to rotate inside the protection adjustment ring 32, thereby changing the direction of the direction transmission component 36. The change in the direction of the direction transmission component 36 drives the first transmission protection component 37 to move. The first transmission protection component 37 can limit the direction of the direction transmission component 36 after the direction transmission component 36 changes its position. The amplitude of the initial shaking of the welding part 15 is the largest. Therefore, by controlling the initial shaking angle of the welding part 15, the problem of the welding part 15 colliding with the workpiece again after the welding part 15 shakes and hits the gun can be reduced. Then, the limiting protection component 25 is adjusted to pull the position of the second slide column 23 downward, and the position of the welding part 15 is adjusted, so that the first anti-collision protection device 2 and the second anti-collision protection device 3 can be reset to the position as shown in the figure. Figure 4 state, and then the motor drives the sliding plate 12 and the mechanical arm 13 to drive the welding piece 15 for welding. Compared with the shaped metal tubes on the market, the first anti-collision protection device 2 and the second anti-collision protection device 3 have stronger stability and adjustability. The welding piece 15 is generally provided with a shielding gas spray. If a metal tube is used for shaping, if the shielding gas is blown out with strong force, it may also cause the metal tube to deflect, causing the welding position to shift and the welding failure problem. Moreover, it is not easy to adjust the gas blowing force when using a metal tube. Compared with the metal tube, the first anti-collision protection device 2 and the second anti-collision protection device 3 have stronger stability.

[0023] like Figures 3 to 5As shown, the first anti-collision protection device 2 also includes a first fixed rod 22 fixedly installed at the bottom end of the second adjustment block 141, a groove is opened inside the first fixed rod 22, and a plurality of first teeth 221 are fixedly installed inside the groove, a bottom protrusion 222 is fixedly installed at the bottom end of the first fixed rod 22, and a second sliding column 23 is slidably installed on the outer wall of the bottom protrusion 222, and a limiting protection member 25 is fixedly installed on the outer wall of the upper end of the second sliding column 23, and the limiting protection member 25 is used to engage with the first teeth 221 to limit the second sliding column 23.

[0024] It should be noted that when the welding part 15 vibrates and collides with the workpiece, the welding part 15 will lift up the second anti-collision protection device 3, and the second anti-collision protection device 3 can lift up the second slide column 23, thereby driving the second slide column 23 to slide on the outer wall of the bottom protruding plate 222, and the outer wall of the second slide column 23 is provided with a limiting protection part 25, and the limiting protection part 25 can engage with the first tooth 221 inside the first slide plate 21, thereby limiting the second slide column 23 and preventing the welding part 15 from continuously vibrating and colliding with the workpiece.

[0025] like Figure 5 As shown, the limit protection member 25 includes two second fixed columns 251 fixedly installed on the outer wall of the second sliding column 23, the end of the second fixed column 251 is fixedly installed with a second fixed plate 252, the inner part of the second fixed plate 252 is slidably installed with a sixth sliding column 253, the end of the sixth sliding column 253 is fixedly installed with a second limit plate 254, the top of the limit protection member 25 is fixedly installed with a second spring 255, the end of the second spring 255 is connected to the side wall of the second fixed plate 252, and the end of the second limit plate 254 is meshed with the first tooth 221.

[0026] When the second slide post 23 is lifted up, the second limit plate 254 on the limit protection member 25 is engaged with the first tooth 221, and the first fixed rod 22 is provided with a plurality of first teeth 221 inside. When the second slide post 23 is lifted up, the second limit plate 254 on the limit protection member 25 is engaged with the first tooth 221, and the first fixed rod 22 is provided with a plurality of first teeth 221 inside. When the second slide post 23 is lifted up, the second slide post 23 and the welding member 15 are limited. The outer wall of the sixth slide post 253 is provided with a second spring 255, so that the second limit plate 254 maintains the position engaged with the first tooth 221, and the end of the second limit plate 254 is provided with a rounded corner, so that when the second slide post 23 is lifted up, the second limit plate 254 slides on the outer wall of the first fixed rod 22. When the second slide post 23 needs to be reset, the sixth slide post 253 can be pulled, and then the position of the second slide post 23 can be adjusted.

[0027] like Figure 5 As shown, a first spring 24 is fixedly installed on the top of the second sliding column 23, and a first slide plate 21 is fixedly installed on the top of the first spring 24. The first slide plate 21 slides on the outer wall of the first fixed rod 22, and two limit protection members 25 are rotatably installed on the top of the first slide plate 21. The limit protection members 25 pass through the interior of the second adjusting block 141 and are threadedly installed with the second adjusting block 141.

[0028] It should be noted that when it is necessary to adjust the tightness of the second slide column 23, the first slide plate 21 can be moved to a position close to the second slide column 23 by rotating the limit protection member 25, and the side wall of the first slide plate 21 is provided with a first spring 24, and the end of the first spring 24 is connected to the top of the second slide column 23. By rotating the two limit protection members 25, the first spring 24 can be put into a compressed state, thereby adjusting the rising force of the second slide column 23.

[0029] like Figures 6 to 8 As shown, the second anti-collision protection device 3 includes a plurality of first support columns 31 fixedly mounted at the bottom end of the second sliding column 23, a protection adjustment ring 32 is fixedly mounted at the bottom end of the first support column 31, a protection adjustment ball 33 is movably mounted inside the protection adjustment ring 32, a bottom connection block 34 is fixedly mounted at the bottom end of the protection adjustment ball 33, the bottom connection block 34 is rotatably mounted with the welding member 15, a telescopic rod 35 is fixedly mounted at the top end of the protection adjustment ball 33, a direction transmission component 36 is fixedly mounted at the top end of the telescopic rod 35, and the direction transmission component 36 A first transmission protection component 37 is fixedly installed on the top, and a connecting component 39 is arranged inside the first transmission protection component 37. The vibration of the welding part 15 drives the protection adjustment ball 33 to rotate inside the protection adjustment ring 32. The rotation of the protection adjustment ball 33 drives the telescopic rod 35 to telescope and adjust the direction of the direction transmission component 36. When the direction of the direction transmission component 36 is adjusted, the first transmission protection component 37 moves to limit the direction of the direction transmission component 36, and the connecting component 39 is used to reset the first transmission protection component 37.

[0030] It should be noted that, considering that the weldment 15 not only changes in height up and down after shaking and colliding, but also swings in any direction to the left and right, a second anti-collision protection device 3 is provided at the lower end of the first anti-collision protection device 2. When the weldment 15 contacts the workpiece, it will be tilted at an angle, so that the protection adjustment ball 33 can be driven to slide inside the protection adjustment ring 32, and the top of the protection adjustment ring 32 is provided with a direction transmission component 36, thereby driving the direction of the direction transmission component 36 to deflect, and the telescopic rod 35 can adapt to the height change of the direction transmission component 36. The top of the direction transmission component 36 is provided with a first transmission protection component 37. Since the angle deviation of the weldment 15 is the largest at the moment of collision with the workpiece, the first transmission protection component 37 has the function of recording the deflection angle of the direction transmission component 36, thereby preventing the workpiece from shaking after the collision, resulting in the weldment 15 continuing to collide with the workpiece and causing damage.

[0031] like Figure 7 As shown, the direction transmission assembly 36 includes a transmission ball 361 fixedly mounted on the top of the telescopic rod 35 , and a spherical transmission block 362 is movably mounted on the outer wall of the transmission ball 361 , and the top of the spherical transmission block 362 is connected to the first transmission protection assembly 37 .

[0032] It should be noted that a transmission ball 361 is provided at the top of the telescopic rod 35, and the outer wall of the transmission ball 361 is rotatably connected to a spherical transmission block 362. When the telescopic rod 35 is extended and retracted to cause the transmission ball 361 to deflect, the spherical transmission block 362 can follow the direction of the deflection of the transmission ball 361, thereby driving the first transmission protection component 37 to move and record.

[0033] like Figures 7 and 8As shown, the first transmission protection component 37 includes an anti-collision protection piece 371 fixedly mounted on the top of the ball transmission block 362, and a third slide column 372 is slidably mounted inside the anti-collision protection piece 371; the anti-collision protection piece 371 includes a bottom fixed rod 3711 fixedly mounted on the top of the center of the ball transmission block 362, a limit slip ring 3712 is fixedly mounted on the top of the bottom fixed rod 3711, the third slide column 372 slides on the inner wall of the limit slip ring 3712, and two limit fixing columns 3713 are fixedly mounted on the top of the outer wall of the limit slip ring 3712, a limit lifting column 3714 is fixedly mounted on the top of the limit fixing column 3713, and a fifth slide column 3715 is slidably mounted inside the limit lifting column 3714, The anti-collision protection member 371 is provided with a tooth block inside, and the outer wall of the fifth slide column 3715 is provided with a spring for engaging with the tooth block to limit the third slide column 372; second transmission protection members 373 are fixedly installed at both ends of the third slide column 372, and the second transmission protection member 373 has the same structure as the anti-collision protection member 371, and a fourth slide column 374 is slidably installed inside the second transmission protection member 373, and a third tooth 375 is provided inside the fourth slide column 374, and third fixed plates 376 are fixedly installed at both ends of the fourth slide column 374, and a third fixed rod 377 is fixedly installed on the top of the third fixed plate 376, and the top of the third fixed rod 377 is fixedly installed on the bottom end of the second slide column 23.

[0034] It should be noted that the third fixing rod 377 and the third fixing plate 376 are installed at the bottom end of the second sliding column 23, and the fourth sliding column 374 is fixedly installed at both ends of the third fixing plate 376, and the third sliding column 372 is slidably installed on the outer wall of the fourth sliding column 374, and the outer wall of the third sliding column 372 is connected to the anti-collision protection part 371. Therefore, when the ball transmission block 362 drives the bottom fixing rod 3711 and the limiting sliding ring 3712 to slide on the outer wall of the third sliding column 372, a plurality of tooth blocks are arranged inside the third sliding column 372, and the end of the fifth sliding column 3715 is meshed with the tooth block, so that the limiting sliding ring 3712 is limited when it slides on the outer wall of the third sliding column 372. The maximum deflection position of the transmission ball 361 is recorded to prevent the welding part 15 from continuously colliding with the workpiece when shaking, causing damage to the welding part 15, thereby protecting the welding part 15. The two ends of the third slide column 372 are provided with a second transmission protection member 373 with the same structure as the anti-collision protection member 371, and the second transmission protection member 373 slides on the outer walls of the two fourth slide columns 374, and the fourth slide column 374 is also provided with a third tooth 375 inside, so that when the ball transmission block 362 is facing any position, the third slide column 372 and the fourth slide column 374 can record it, thereby reducing the possibility of collision between the welding part 15 and the workpiece, and protecting the welding part 15.

[0035] like Figures 7 and 8 As shown, the outer walls of the fourth slide post 374 and the third slide post 372 are respectively provided with a third spring 3741 and a fourth spring 3721, the outer wall of the fourth slide post 374 is provided with a spring adjustment assembly 38, the spring adjustment assembly 38 includes two spring connection blocks 381 slidably mounted on the outer wall of the fourth slide post 374 and symmetrical to each other, the internal thread of the spring connection block 381 is provided with a threaded rod 382, ​​the end of the threaded rod 382 is provided with a hexagonal rotation opening 383, the hexagonal rotation opening 383 is used to facilitate the tool to adjust and rotate, the end of the third spring 3741 is fixedly installed with the side wall of the spring connection block 381, the outer wall of the third slide post 372 is also provided with a second adjustment member 384 with the same structure as the spring connection block 381, the threaded rod 382 and the hexagonal rotation opening 383, the top of the second transmission protection member 373 and the top of the anti-collision protection member 371 are provided with a connecting assembly 39, the connecting assembly 39 is used to reset the first transmission protection assembly 37.

[0036] It should be noted that since the second transmission protection member 373 and the anti-collision protection member 371 need to be reset after moving, the fourth spring 3721 is symmetrically arranged on the outer wall of the third slide column 372, and the third spring 3741 is symmetrically arranged on the outer wall of the fourth slide column 374, and the second transmission protection member 373 and the anti-collision protection member 371 are provided with a connecting assembly 39 at the top. When welding is required again, the position of the welding member 15 needs to be reset. The anti-collision protection member 371 and the second transmission protection member 373 can be reset to the position as shown in the figure by raising the connecting assembly 39 under the action of the fourth spring 3721 and the third spring 3741. Figure 8 state, so as to resume welding work, and the outer wall of the fourth slide post 374 is provided with a spring adjustment component 38, and the outer wall of the third slide post 372 is provided with a second adjustment member 384, so that by rotating the threaded rod 382, ​​the spring connecting block 381 can be driven to slide on the surface of the fourth slide post 374, so as to adjust the tightness of the fourth spring 3721 and the third spring 3741, thereby reducing the deflection effect of the shielding gas blowing on the weldment 15 when the shielding gas is set on the weldment 15.

[0037] like Figure 8 As shown, the connecting assembly 39 includes a first connecting rod 391 fixedly mounted on the top of the second transmission protection member 373, a connecting groove 392 is arranged inside the first connecting rod 391, a first connecting block 393 is slidingly arranged inside the connecting groove 392, and the bottom end of the first connecting block 393 is fixedly mounted on the top of the fifth slide column 3715.

[0038] It should be noted that the hexagonal rotating mouth 383 slides on the inner wall of the connecting groove 392, so that when the second transmission protection member 373 drives the first connecting rod 391 to move, it will not affect the anti-collision protection member 371, and raising the first connecting rod 391 can also reset the second transmission protection member 373 and the anti-collision protection member 371.

[0039] like Fig. 9 As shown, the welding part 15 includes a welding rotating seat 154 rotatably installed inside the bottom connecting block 34, a first fixed block 151 is fixedly installed on the end of the welding rotating seat 154, a welding head 152 is fixedly installed at the lower end center of the first fixed block 151, a welding air pipe 153 is fixedly installed on the side wall of the first fixed block 151, and a detection device 4 is fixedly installed on the side wall of the first fixed block 151, and the detection device 4 is used to detect the angle of the welding head 152; the detection device 4 includes two square protrusions 41 fixedly installed on the center of the two side walls of the first fixed block 151, a clamping rod 42 is slidably installed on the end of the square protrusion 41, a measuring rod 43 is slidably installed inside the clamping rod 42, and a U-shaped groove 44 is fixedly installed on the end of the measuring rod 43, and the outer wall of the U-shaped groove 44 contacts the outer wall of the welding head 152.

[0040] It should be noted that a welding air pipe 153 is provided on the side wall of the welding part 15, which can spray gas during welding, and a detection device 4 is provided on the outer wall of the first fixed block 151. After a collision occurs, the clamping rod 42 is installed on the interface of the square protrusion 41, and the measuring rod 43 is installed on the end of the clamping rod 42, so that the U-shaped groove 44 is engaged with the outer wall of the welding head 152. By sliding the two measuring rods 43, it is possible to detect whether the direction and position of the welding head 152 are bent or deflected, thereby improving the accuracy of the position of the welding part 15 during welding.

[0041] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A laser welding robot, comprising a base (1), a sliding plate (12) being slidably mounted inside the base (1), a mechanical arm (13) being arranged on the sliding plate (12), a first adjusting block (14) being rotatably mounted on the end of the mechanical arm (13), characterized in that: A second adjustment block (141) is fixedly mounted on the end of the first adjustment block (14), a first anti-collision protection device (2) is fixedly mounted on the bottom end of the second adjustment block (141), a second anti-collision protection device (3) is arranged at the bottom of the first anti-collision protection device (2), a welding piece (15) is arranged at the bottom end of the second anti-collision protection device (3), the first anti-collision protection device (2) is used to adjust the position of the welding piece (15) to extend or retract after the welding piece (15) collides, and the second anti-collision protection device (3) is used to adjust the angle of the welding piece (15) after the collision; The first anti-collision protection device (2) comprises a first fixing rod (22), a second sliding column (23) and a position limiting protection member (25); the first fixing rod (22) is provided with a first tooth (221) inside; the second sliding column (23) is lifted up after the welding member (15) collides; the second sliding column (23) slides on the outer wall of the first fixing rod (22), driving the position limiting protection member (25) to slide on the outer wall of the first tooth (221) for position limiting; The second anti-collision protection device (3) comprises a protection adjustment ball (33), a direction transmission component (36) and a first transmission protection component (37); after the welded component (15) vibrates and collides, the protection adjustment ball (33) drives the direction transmission component (36) to change direction, so that the first transmission protection component (37) limits the angle of the welded component (15) when the direction changes.

2. A laser welding robot according to claim 1, characterized in that: The first anti-collision protection device (2) further comprises a first fixing rod (22) fixedly mounted on the bottom end of the second adjustment block (141); a groove is provided inside the first fixing rod (22); a plurality of first teeth (221) are fixedly mounted inside the groove; a bottom convex plate (222) is fixedly mounted on the bottom end of the first fixing rod (22); a second sliding column (23) is slidably mounted on the outer wall of the bottom convex plate (222); a limiting protection member (25) is fixedly mounted on the outer wall of the upper end of the second sliding column (23); the limiting protection member (25) is used to engage with the first teeth (221) to limit the position of the second sliding column (23).

3. A laser welding robot according to claim 2, characterized in that: The position limiting protection member (25) comprises two second fixing columns (251) fixedly mounted on the outer wall of the second sliding column (23); a second fixing plate (252) is fixedly mounted on the end of the second fixing column (251); a sixth sliding column (253) is slidably mounted inside the second fixing plate (252); a second position limiting plate (254) is fixedly mounted on the end of the sixth sliding column (253); a second spring (255) is fixedly mounted on the top end of the position limiting protection member (25); an end of the second spring (255) is connected to the side wall of the second fixing plate (252); and an end of the second position limiting plate (254) is meshed with the first tooth (221).

4. A laser welding robot according to claim 3, characterized in that: A first spring (24) is fixedly mounted on the top of the second sliding column (23), a first slide plate (21) is fixedly mounted on the top of the first spring (24), the first slide plate (21) slides on the outer wall of the first fixing rod (22), two limit protection members (25) are rotatably mounted on the top of the first slide plate (21), the limit protection members (25) pass through the interior of the second adjusting block (141) and are threadedly mounted on the second adjusting block (141).

5. A laser welding robot according to claim 4, characterized in that: The second anti-collision protection device (3) comprises a plurality of first support columns (31) fixedly mounted at the bottom end of the second sliding column (23); a protection adjustment ring (32) is fixedly mounted at the bottom end of the first support column (31); a protection adjustment ball (33) is movably mounted inside the protection adjustment ring (32); a bottom connection block (34) is fixedly mounted at the bottom end of the protection adjustment ball (33); the bottom connection block (34) is rotatably mounted on the welding part (15); a telescopic rod (35) is fixedly mounted at the top end of the protection adjustment ball (33); a direction transmission component (36) is fixedly mounted at the top end of the telescopic rod (35); the direction transmission component (36) A first transmission protection component (37) is fixedly mounted on the top of the first transmission protection component (37), a connecting component (39) is arranged inside the first transmission protection component (37), the welding component (15) vibrates to drive the protection adjustment ball (33) to rotate inside the protection adjustment ring (32), the protection adjustment ball (33) rotates to drive the telescopic rod (35) to telescope and adjust the direction of the direction transmission component (36), when the direction of the direction transmission component (36) is adjusted, the first transmission protection component (37) moves to limit the direction of the direction transmission component (36), and the connecting component (39) is used to reset the first transmission protection component (37).

6. A laser welding robot according to claim 5, characterized in that: The direction transmission component (36) comprises a transmission ball (361) fixedly mounted on the top end of the telescopic rod (35); a spherical transmission block (362) is movably mounted on the outer wall of the transmission ball (361); and the top end of the spherical transmission block (362) is connected to the first transmission protection component (37).

7. A laser welding robot according to claim 6, characterized in that: The first transmission protection component (37) comprises an anti-collision protection member (371) fixedly mounted on the top of the spherical transmission block (362), and a third sliding column (372) is slidably mounted inside the anti-collision protection member (371); The anti-collision protection member (371) comprises a bottom fixing rod (3711) fixedly mounted on the top of the center of the ball transmission block (362); a limit slip ring (3712) is fixedly mounted on the top of the bottom fixing rod (3711); the third sliding column (372) slides on the inner wall of the limit slip ring (3712); two limit fixing columns (3713) are fixedly mounted on the top of the outer wall of the limit slip ring (3712); a limit lifting column (3714) is fixedly mounted on the top of the limit fixing column (3713); a fifth sliding column (3715) is slidably mounted inside the limit lifting column (3714); a tooth block is arranged inside the anti-collision protection member (371); and a spring is arranged on the outer wall of the fifth sliding column (3715) for engaging with the tooth block to limit the third sliding column (372); A second transmission protection member (373) is fixedly mounted on both ends of the third slide column (372), the second transmission protection member (373) having the same structure as the anti-collision protection member (371), a fourth slide column (374) is slidably mounted inside the second transmission protection member (373), a third tooth (375) is arranged inside the fourth slide column (374), a third fixing plate (376) is fixedly mounted on both ends of the fourth slide column (374), a third fixing rod (377) is fixedly mounted on the top end of the third fixing plate (376), and the top end of the third fixing rod (377) is fixedly mounted on the bottom end of the second slide column (23).

8. A laser welding robot according to claim 7, characterized in that: The outer walls of the fourth slide post (374) and the third slide post (372) are respectively provided with a third spring (3741) and a fourth spring (3721); the outer wall of the fourth slide post (374) is provided with a spring adjustment assembly (38); the spring adjustment assembly (38) comprises two spring connection blocks (381) slidably mounted on the outer wall of the fourth slide post (374) and symmetrical to each other; a threaded rod (382) is mounted on the inner thread of the spring connection block (381); the end of the threaded rod (382) is provided with a hexagonal rotation opening (383); the hexagonal rotation opening (383) is used to In order to facilitate the tool to adjust and rotate, the end of the third spring (3741) is fixedly mounted to the side wall of the spring connecting block (381), and the outer wall of the third sliding column (372) is also provided with a second adjusting member (384) having the same structure as the spring connecting block (381), the threaded rod (382) and the hexagonal rotating opening (383). The top end of the second transmission protection member (373) and the top end of the anti-collision protection member (371) are provided with a connecting component (39), and the connecting component (39) is used to reset the first transmission protection component (37).

9. A laser welding robot according to claim 8, characterized in that: The connecting assembly (39) comprises a first connecting rod (391) fixedly mounted on the top end of the second transmission protection member (373); a connecting slide groove (392) is arranged inside the first connecting rod (391); a first connecting block (393) is slidably arranged inside the connecting slide groove (392); and the bottom end of the first connecting block (393) is fixedly mounted on the top end of the fifth slide column (3715).

10. A laser welding robot according to claim 9, characterized in that: The welding member (15) comprises a welding rotating seat (154) rotatably mounted inside a bottom connecting block (34); a first fixed block (151) is fixedly mounted on the end of the welding rotating seat (154); a welding head (152) is fixedly mounted at the center of the lower end of the first fixed block (151); a welding air pipe (153) is fixedly mounted on the side wall of the first fixed block (151); and a detection device (4) is fixedly mounted on the side wall of the first fixed block (151); the detection device (4) is used to detect the angle of the welding head (152); The detection device (4) comprises two square protrusions (41) fixedly mounted on the two side walls of the first fixed block (151) and symmetrically arranged at the center, a clamping rod (42) being slidably mounted on the end of the square protrusion (41), a measuring rod (43) being slidably mounted inside the clamping rod (42), a U-shaped groove (44) being fixedly mounted on the end of the measuring rod (43), and an outer wall of the U-shaped groove (44) being in contact with an outer wall of the welding head (152).

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