Automobile body welding device and method capable of achieving multi-angle conversion

Abstract

The invention discloses an automobile body welding device and method capable of achieving multi-angle conversion, and belongs to the field of automobile part machining devices.The automobile body welding device comprises a base, a frame is fixedly installed at the top end of the base, a rotating rod is rotatably installed in the frame, the side wall of the rotating rod is fixedly sleeved with a supporting block, and a mounting base is fixedly installed at the top end of the supporting block; a supporting table is rotatably mounted at the top end of the mounting seat, a telescopic rod is fixedly mounted at the top end of the supporting table, a placement plate is arranged at the top end of the telescopic rod, and a limiting assembly is arranged at the top end of the placement plate. Through the arrangement of the clamping assembly, the effect of clamping and fixing a to-be-welded product is achieved, the effect of driving the to-be-welded product to turn over can be achieved, through cooperation of the driving assembly and the rotating assembly, the effect of adjusting the angle and direction of the to-be-welded product is achieved, and the to-be-welded product can be conveniently welded by the equipment at multiple angles; and the welding efficiency of equipment can be improved.

Description

Technical Field

[0001] The invention relates to the field of automobile parts processing devices, and more specifically, to a multi-angle-changeable automobile body welding device and method. Background Art

[0002] The body components of automobiles are mainly made of cold-rolled steel stampings with good stamping and welding processability, which are assembled and welded. The welding is mostly carried out in an assembly line production method with a high degree of mechanization and automation. A large number of special equipment and fixtures are used, and the welding work is carried out by welding guns or welding machines. Since the automobile body contains many parts and they are of different shapes, a variety of fixtures are needed to fix the body parts when welding them, so as to facilitate fast and stable welding operations on the body, such as sheet metal and other structural welding.

[0003] The patent with application number 202322920780.9 discloses a clamping and welding device for automobile body sheet metal parts, including a bottom plate, two groups of support rods are fixedly installed on the top of the bottom plate, and a top plate is fixedly installed on the top of the two groups of support rods; a clamping assembly, which is arranged on the bottom plate, and the clamping assembly includes a clamping table and an electric push rod, the electric push rod is fixedly installed on the bottom plate, and the clamping table is fixedly connected to the movable end of the electric push rod; a welding assembly, which is arranged on the top plate, and the welding assembly includes an adjustment motor and a welding machine, and the adjustment motor is used to drive the welding machine to move for angle adjustment. The utility model can solve the problem that it is difficult to adjust the angle direction of the welding head as needed in the prior art, making the device less practical.

[0004] In view of the above-mentioned related technologies, the clamping table can be raised and lowered through the coordinated use of structures such as a clamping table, an electric push rod, a bidirectional threaded rod, a guide rod, a moving block and a clamping plate, so that the height of the clamping table can be adjusted according to the height of the worker, which is convenient for placing sheet metal parts and improves the convenience of construction operations. Although the welding assembly in the equipment can change the angle, the clamping assembly is fixed, and thus the product angle is fixed, which is not enough to weld the back of the product. The product needs to be manually turned over and re-clamped, which reduces the processing efficiency of the product. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a multi-angle-changeable automobile body welding device and method, which adopts the following technical solutions:

[0006] A multi-angle-changeable automobile body welding device comprises a base, a frame is fixedly installed on the top of the base, a rotating rod is rotatably installed in the frame, a supporting block is fixedly installed on the side wall of the rotating rod, a mounting seat is fixedly installed on the top of the supporting block, a supporting platform is rotatably installed on the top of the mounting seat, a telescopic rod is fixedly installed on the top of the supporting platform, and a placing plate is provided on the top of the telescopic rod, a limiting assembly is provided on the top of the placing plate, two symmetrically distributed first supporting plates are fixedly installed on the side wall of the supporting platform, the two first supporting plates are both "L"-shaped in cross section, a clamping assembly is provided between the two first supporting plates, a rotating assembly is provided between the supporting platform and the mounting seat, one end of the rotating rod passes through the frame and is provided with a driving assembly, and a supporting assembly is provided between the bottom end of the mounting seat and the top of the base;

[0007] A second support plate is fixedly mounted on one side of the base, the cross section of the second support plate is in an inverted "L" shape, a mechanical arm is arranged at the bottom end of the second support plate, and a welding gun is arranged on the side wall of the end of the mechanical arm.

[0008] By adopting the above technical scheme, when the equipment is used, the staff places the product to be welded on the top of the placement plate, and a limiting component is provided on the top of the placement plate, which plays the role of limiting and fixing the product to be welded, and can also play the role of calibrating and aligning the product to be welded. When the product is limited, the product to be welded can be clamped and fixed by the clamping component, which is beneficial to maintaining the stability of the product to be welded during welding. When the product to be welded is clamped, the welding gun is moved to the position where the product to be welded is required to be welded by the mechanical arm, and the product to be welded is welded by the welding gun. The setting of the mechanical arm can play the role of adjusting the position of the welding gun, so that the equipment can weld different positions of the product to be welded, and when one side of the product to be welded is welded, the placement plate is driven to descend and disengage from the product to be welded by the telescopic rod, and then the product to be welded can be driven to flip, so that the equipment can weld the other side of the product to be welded. When the product to be welded is flipped, the placement plate can be driven to rise and contact the bottom end of the product to be welded by the telescopic rod, and the placement plate can play the role of supporting and stabilizing the product to be welded.

[0009] The device can drive the support table to rotate with the product to be welded through the rotating component, so as to adjust the direction of the product to be welded, and can drive the support block to rotate synchronously with the mounting seat and the support table through the driving component, so as to drive the product to be welded to flip, and then adjust the angle of the product to be welded, so that the equipment can weld different positions of the product to be welded, and a supporting component is provided between the mounting seat and the base, which can support and stabilize the mounting seat, and is conducive to maintaining the stability of the flipping of the mounting seat.

[0010] Furthermore, the limiting assembly includes two support plates fixedly installed on the top of the placing plate, the two support plates are symmetrically distributed at the top of the placing plate, two symmetrically distributed clamps are slidably installed between the two support plates, and a plurality of first springs distributed in a linear array are fixedly connected between the opposite sides of the two clamps and the opposite sides of the same-side support plates, and rubber pads are fixedly installed on the opposite sides of the two clamps.

[0011] By adopting the above technical solution, the staff places the product to be welded on the top of the placement plate, and the placement plate can support the product to be welded. The staff pushes the two clamps and then places the product to be welded between the two clamps. When the product to be welded is placed, the clamp moves toward the direction of the product to be welded under the elastic force of the first spring of the same group. Through the cooperation of the two clamps, it plays a role of limited clamping, and can also play a role of aligning the product to be welded. The height of the placement plate can be adjusted by the telescopic rod, thereby playing a role of adjusting the height of the product to be welded, which is convenient for subsequent clamping.

[0012] Furthermore, two symmetrically distributed limit blocks are fixedly mounted on the bottom ends of the two clamping plates, and a limit groove matching the limit blocks is formed on the top end of the placement plate.

[0013] By adopting the above technical solution, when the two splints are located on the top of the placement plate and slide, the splints slide in the limiting grooves with the limiting blocks on the same side. The cooperation between the limiting blocks and the limiting grooves is helpful to maintain the sliding stability of the splints.

[0014] Furthermore, the clamping assembly includes a cylinder arranged on the opposite side of the vertical sections of the two first support plates, the two cylinder piston shafts slide through the first support plate on the same side, the ends of the two cylinder piston shafts are fixedly installed with installation boxes, and the two installation boxes are fixedly installed with third reduction motors, the ends of the two third reduction motor output shafts are fixedly installed with connecting rods, the opposite ends of the two connecting rods penetrate the installation boxes on the same side, and the opposite ends of the two connecting rods are fixedly installed with electric clamps.

[0015] By adopting the above technical solution, when the positioning of the product to be welded is completed, the cylinder drives the mounting box and the electric clamp on the same side to move synchronously toward the direction of the product to be welded, and then the product to be welded is clamped by the electric clamp, which can play the role of positioning and fixing the product to be welded. The third reduction motor can be used to drive the same group of connecting rods to rotate, and the connecting rods drive the same group of electric clamps to rotate, thereby flipping the product to be welded, making it convenient for the equipment to weld different sides of the product to be welded.

[0016] Furthermore, the rotating assembly includes a support column fixedly mounted on the bottom end of the support platform, a mounting groove is opened in the mounting seat, the bottom end of the support column passes through the mounting groove and is rotatably connected to the top of the mounting groove, the support column passes through the mounting groove and a side wall fixing sleeve at one end is provided with a secondary gear, a second reduction motor is arranged in the mounting groove, and a main gear is arranged on the side wall fixing sleeve of the output shaft of the second reduction motor, and the main gear and the secondary gear are meshed.

[0017] By adopting the above technical solution, the second reduction motor drives the main gear to rotate, the main gear drives the sub-gear to rotate, the sub-gear drives the support column to rotate, and the support column drives the support table to rotate synchronously with the product to be welded, thereby adjusting the direction of the product to be welded.

[0018] Furthermore, an annular groove is provided at the top of the mounting seat, a support ring is rotatably installed in the annular groove, and the top of the support ring is fixedly connected to the bottom end of the support platform.

[0019] By adopting the above technical solution, when the mounting seat rotates, the mounting seat slides in the annular groove with the support ring. The cooperation between the support ring and the annular groove stabilizes the mounting seat, which is beneficial to maintaining the stability of the rotation of the mounting seat.

[0020] Furthermore, the driving assembly includes a turbine fixedly mounted on the side wall of one end of the rotating rod passing through the frame, a vortex rod is rotatably mounted on the top of the base, the vortex rod and the turbine are meshed, a driven gear is fixedly mounted on the side wall of the lower section of the vortex rod, a first reduction motor is fixedly mounted on the top of the base, a driving gear is fixedly mounted on the side wall of the output shaft of the first reduction motor, and the driving gear is meshed with the driven gear.

[0021] By adopting the above technical solution, the first reduction motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the worm gear to rotate, the worm gear drives the turbine to rotate, the turbine drives the rotating rod to rotate, and the rotating rod drives the support block to rotate synchronously with the mounting seat and the support platform, which can drive the product to be welded to flip, and then adjust the angle of the product to be welded, so that the equipment can weld different positions of the product to be welded.

[0022] Furthermore, the support assembly includes four pillars hinged to the top of the base, the four pillars are symmetrically distributed at the top of the base, movable grooves are opened at the top of the four pillars, support rods are slidably installed in the movable grooves, second springs are fixedly connected between the bottom ends of the support rods and the inner walls of the bottom ends of the movable grooves in the same group, and the top ends of the support rods are hinged to the bottom ends of the mounting bases.

[0023] By adopting the above technical solution, when the mounting seat is flipped, the mounting seat pushes the two support rods on one side to slide in the same group of movable grooves, and the support rods push the second springs in the same group to contract, and the mounting seat slides upward with the two support rods on the other side in the same group of movable grooves, and the support rods pull the second springs in the same group. Through the cooperation of the pillars, the second springs and the support rods, the mounting seat is supported and stabilized, which is beneficial to maintaining the stability of the rotation of the mounting seat.

[0024] Furthermore, two symmetrically distributed sliding blocks are fixedly mounted on the side walls of the bottom ends of the four support rods, and the inner wall of the movable groove is provided with a sliding groove matching the sliding blocks in the same group.

[0025] By adopting the above technical solution, when the support rod slides in the same group of movable grooves, the support rod slides in the same group of sliding blocks with the same group of sliding blocks. The cooperation between the sliding blocks and the sliding grooves is conducive to maintaining the sliding stability of the support rod and helps to prevent the support rod from leaving the same group of movable grooves.

[0026] A method for welding a car body capable of being changed at multiple angles comprises the following steps:

[0027] S1. Placing step: the staff places the product to be welded on the top of the placing plate, which can support the product to be welded, and a limit assembly is provided on the top of the placing plate. The staff pushes the two clamping plates, and then places the product to be welded between the two clamping plates. When the product to be welded is placed, the clamping plate moves toward the product to be welded under the elastic force of the first spring of the same group. Through the cooperation of the two clamping plates, the clamping is limited and aligned, and the height of the placing plate can be adjusted by the telescopic rod, thereby adjusting the height of the product to be welded, which is convenient for subsequent clamping.

[0028] S2, clamping step: when the product to be welded is positioned, the cylinder drives the mounting box and the electric clamp on the same side to move synchronously toward the product to be welded, and then the electric clamp clamps the product to be welded, so as to position and fix the product to be welded, and the third reduction motor can be used to drive the same group of connecting rods to rotate, and the connecting rod drives the same group of electric clamps to rotate, so as to flip the product to be welded, so as to facilitate the equipment to weld different sides of the product to be welded;

[0029] S3, welding step: after the product to be welded is clamped and fixed, the welding gun can be moved to the required welding position of the product to be welded by the mechanical arm, and the product to be welded can be welded by the welding gun. The position of the welding gun can be adjusted by the setting of the mechanical arm, so that the equipment can weld different positions of the product to be welded;

[0030] S4, angle adjustment step: the first reduction motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the worm rod to rotate, the worm rod drives the turbine to rotate, the turbine drives the rotating rod to rotate, and the rotating rod drives the support block to rotate synchronously with the mounting seat and the support table, which can drive the product to be welded to flip, and then adjust the angle of the product to be welded, which is convenient for the equipment to weld different positions of the product to be welded. When the mounting seat flips, the mounting seat pushes the two support rods on one side to slide in the same group of active grooves, and the support rods push the second springs in the same group to contract, and the mounting seat slides upward with the two support rods on the other side in the same group of active grooves, and the support rods pull the second springs in the same group. Through the cooperation of the pillars, the second springs and the support rods, the mounting seat is supported and stabilized, which is beneficial to maintaining the stability of the rotation of the mounting seat, and the second reduction motor drives the main gear to rotate, the main gear drives the sub-gear to rotate, the sub-gear drives the support column to rotate, and the support column drives the support table to rotate synchronously with the product to be welded, which plays a role in adjusting the direction of the product to be welded.

[0031] In summary, the present invention includes the following beneficial technical effects:

[0032] (1) In the present invention, the setting of the clamping assembly not only plays the role of clamping and fixing the product to be welded, but also plays the role of driving the product to be welded to flip. Moreover, through the cooperation of the driving assembly and the rotating assembly, the angle and direction of the product to be welded can be adjusted, which makes it convenient for the equipment to weld the product to be welded at multiple angles, which is beneficial to improving the welding efficiency of the equipment.

[0033] (2) In the present invention, the setting of the limit assembly can play the role of clamping and limiting the product to be welded, and can also play the role of correcting and aligning the product to be welded, which is beneficial to maintaining the accuracy of product welding. The placement plate can be driven down by the telescopic rod to make the placement plate separate from the product to be welded, thereby facilitating the equipment to weld different surfaces of the product to be welded.

[0034] (3) In the present invention, the support assembly is arranged between the mounting seat and the base to support and stabilize the mounting seat, which is beneficial to maintaining the stability of the rotation of the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention;

[0036] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0037] Figure 3 It is a structural schematic diagram of the second viewing angle of the present invention;

[0038] Figure 4 For the present invention Figure 3The enlarged view of point B in the middle;

[0039] Figure 5 is a cross-sectional view of the present invention;

[0040] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle;

[0041] Figure 7 For the present invention Figure 5 The enlarged view of point D in the middle;

[0042] Figure 8 For the present invention Figure 5 Enlarged view of point E in the middle;

[0043] Fig. 9 It is an exploded view of the limiting component in the present invention.

[0044] Description of the numbers in the figure:

[0045] 1. Base; 2. Pillar; 3. Support rod; 4. Mounting seat; 5. First support plate; 6. Cylinder; 7. Mounting box; 8. Electric gripper; 9. Second support plate; 10. Robot arm; 11. Welding gun; 12. Support plate; 13. Placement plate; 14. Telescopic rod; 15. Support table; 16. First reduction motor; 17. Driving gear; 18. Turbine; 19. Driven gear; 20. Frame; 21. Support block; 22. Turbine; 23. Rotating rod; 24. First spring; 25. Clamp; 26. Mounting slot; 27. Movable slot; 28. Second spring; 29. ​​Second reduction motor; 30. Main gear; 31. Support column; 32. Sub-gear; 33. Connecting rod; 34. Third reduction motor. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The following is combined with Figure 1-9 The present invention is described in further detail.

[0050] See also Figure 1-9 A multi-angle-changeable automobile body welding device comprises a base 1, a frame 20 is fixedly installed on the top of the base 1, a rotating rod 23 is rotatably installed in the frame 20, a support block 21 is fixedly sleeved on the side wall of the rotating rod 23, a mounting seat 4 is fixedly installed on the top of the support block 21, a support platform 15 is rotatably installed on the top of the mounting seat 4, a telescopic rod 14 is fixedly installed on the top of the support platform 15, and a placement plate 13 is provided on the top of the telescopic rod 14, a limiting component is provided on the top of the placement plate 13, the limiting component comprises two support plates 12 fixedly installed on the top of the placement plate 13, the two support plates 12 are symmetrically distributed at the top of the placement plate 13, two symmetrically distributed clamping plates 25 are slidably installed between the two support plates 12, a plurality of first springs 24 distributed in a linear array are fixedly connected between the opposite side of the two clamping plates 25 and the opposite side of the same-side support plate 12, and rubber pads are fixedly installed on the opposite sides of the two clamping plates 25.

[0051] When the equipment is in use, the staff places the product to be welded on the top of the placement plate 13, and the placement plate 13 can play the role of supporting the product to be welded. The staff pushes the two clamping plates 25, and then places the product to be welded between the two clamping plates 25. When the product to be welded is placed, the clamping plate 25 moves toward the direction of the product to be welded under the elastic force of the first spring 24 of the same group. Through the cooperation of the two clamping plates 25, it plays the role of limited clamping, and can play the role of aligning the product to be welded. The height of the placement plate 13 can be adjusted by the telescopic rod 14, thereby playing the role of adjusting the height of the product to be welded, which is convenient for subsequent clamping. Two symmetrically distributed limit blocks are fixedly installed on the bottom ends of the two clamping plates 25, and a limit groove matching the limit block is opened on the top of the placement plate 13. When the two clamping plates 25 are located at the top of the placement plate 13 and slide, the clamping plate 25 slides in the limit groove with the limit block on the same side. The cooperation of the limit block and the limit groove is conducive to maintaining the sliding stability of the clamping plate 25.

[0052] Two symmetrically distributed first support plates 5 are fixedly installed on the side wall of the support platform 15. The cross-sections of the two first support plates 5 are both "L"-shaped. A clamping assembly is provided between the two first support plates 5. The clamping assembly includes a cylinder 6 arranged on the opposite side of the vertical sections of the two first support plates 5. The piston shafts of the two cylinders 6 slide through the first support plates 5 on the same side. The ends of the piston shafts of the two cylinders 6 are fixedly installed with mounting boxes 7, and the two mounting boxes 7 are fixedly installed with third reduction motors 34. The ends of the output shafts of the two third reduction motors 34 are fixedly installed with connecting rods 33. The two connecting rods 33 The opposite end passes through the mounting box 7 on the same side, and the opposite ends of the two connecting rods 33 are fixedly installed with electric clamps 8. When the positioning of the product to be welded is completed, the mounting box 7 and the electric clamps 8 on the same side are driven by the cylinder 6 to move synchronously in the direction of the product to be welded, and then the product to be welded is clamped by the electric clamps 8, which can play the role of positioning and fixing the product to be welded, and the same group of connecting rods 33 can be driven to rotate by the third reduction motor 34, and the connecting rods 33 drive the same group of electric clamps 8 to rotate, thereby flipping the product to be welded, which is convenient for the equipment to weld different sides of the product to be welded.

[0053] A second support plate 9 is fixedly installed on one side of the base 1. The cross-section of the second support plate 9 is in an inverted "L" shape. A mechanical arm 10 is provided at the bottom end of the second support plate 9. A welding gun 11 is provided on the side wall of the end of the mechanical arm 10. When the product to be welded is clamped, the mechanical arm 10 carries the welding gun 11 to the position where the product to be welded is required to be welded, and the product to be welded is welded by the welding gun 11. The setting of the mechanical arm 10 can adjust the position of the welding gun 11, which is convenient for the equipment to weld different positions of the product to be welded.

[0054] A rotating assembly is provided between the support platform 15 and the mounting seat 4, and the rotating assembly includes a support column 31 fixedly installed at the bottom end of the support platform 15, and a mounting groove 26 is opened in the mounting seat 4. The bottom end of the support column 31 passes through the mounting groove 26 and is rotatably connected to the top end of the mounting groove 26. The support column 31 passes through the mounting groove 26 and a side wall fixed sleeve is provided with a sub gear 32 at one end. A second reduction motor 29 is provided in the mounting groove 26, and a main gear 30 is fixed on the side wall of the output shaft of the second reduction motor 29. The main gear 30 is meshed with the sub gear 32. The main gear 30 is driven to rotate by the second reduction motor 29, and the main gear 30 drives the sub gear 32 to rotate. The sub gear 32 drives the support column 31 to rotate, and the support column 31 drives the support platform 15 to rotate synchronously with the product to be welded, thereby adjusting the direction of the product to be welded.

[0055] An annular groove is provided at the top of the mounting seat 4, in which a support ring is rotatably installed, and the top of the support ring is fixedly connected to the bottom of the support platform 15. When the mounting seat 4 rotates, the mounting seat 4 slides in the annular groove with the support ring. The cooperation between the support ring and the annular groove stabilizes the mounting seat 4, which is beneficial to maintaining the stability of the rotation of the mounting seat 4.

[0056] One end of the rotating rod 23 passes through the frame 20 and is provided with a driving assembly, which includes a turbine 22 fixedly sleeved on the side wall of one end of the rotating rod 23 passing through the frame 20, a vortex rod 18 is rotatably installed on the top of the base 1, the vortex rod 18 is meshed with the turbine 22, and a driven gear 19 is fixedly sleeved on the side wall of the lower section of the vortex rod 18, a first reduction motor 16 is fixedly installed on the top of the base 1, and a driving gear 17 is fixedly sleeved on the side wall of the output shaft of the first reduction motor 16, and the driving gear 17 is meshed with the driven gear 19, and the driving gear 17 is driven by the first reduction motor 16 to rotate, and the driving gear 17 drives the driven gear 19 to rotate, and the driven gear 19 drives the vortex rod 18 to rotate, the vortex rod 18 drives the turbine 22 to rotate, and the turbine 22 drives the rotating rod 23 to rotate, and the rotating rod 23 drives the support block 21 to rotate synchronously with the mounting seat 4 and the support platform 15, which can drive the product to be welded to flip, and then play a role in adjusting the angle of the product to be welded, so that the equipment can weld different positions of the product to be welded.

[0057] A supporting assembly is provided between the bottom end of the mounting seat 4 and the top end of the base 1, and the supporting assembly includes four pillars 2 hinged to the top end of the base 1, and the four pillars 2 are symmetrically distributed at the top end of the base 1, and movable grooves 27 are opened at the top ends of the four pillars 2, and support rods 3 are slidably installed in the movable grooves 27, and second springs 28 are fixedly connected between the bottom ends of the support rods 3 and the inner walls of the bottom ends of the movable grooves 27 of the same group, and the top ends of the support rods 3 are hinged to the bottom ends of the mounting seat 4. When the mounting seat 4 is flipped, the mounting seat 4 pushes the two support rods 3 on one side to slide in the movable grooves 27 of the same group, and the support rods 3 push the second springs 28 of the same group to contract, and the mounting seat 4 slides upward with the two support rods 3 on the other side in the movable grooves 27 of the same group, and the support rods 3 pull the second springs 28 of the same group, through the cooperation of the pillars 2, the second springs 28 and the support rods 3, the mounting seat 4 is supported and stabilized, which is beneficial to maintaining the stability of the rotation of the mounting seat 4.

[0058] Two symmetrically distributed sliding blocks are fixedly installed on the side walls of the bottom ends of the four support rods 3. The inner walls of the movable grooves 27 are provided with sliding grooves that match the same group of sliding blocks. When the support rods 3 slide in the same group of movable grooves 27, the support rods 3 slide in the sliding grooves with the same group of sliding blocks. The cooperation of the sliding blocks and the sliding grooves is conducive to maintaining the sliding stability of the support rods 3 and helps to prevent the support rods 3 from leaving the same group of movable grooves 27.

[0059] A method for welding a car body capable of being changed at multiple angles comprises the following steps:

[0060] S1, placement step: the staff places the product to be welded on the top of the placement plate 13, the placement plate 13 can play the role of supporting the product to be welded, and a limit assembly is provided on the top of the placement plate 13. The staff pushes the two clamping plates 25, and then places the product to be welded between the two clamping plates 25. When the product to be welded is placed, the clamping plate 25 moves toward the product to be welded under the elastic force of the first spring 24 of the same group. Through the cooperation of the two clamping plates 25, it plays the role of limiting clamping, and can play the role of aligning the product to be welded. The height of the placement plate 13 can be adjusted by the telescopic rod 14, thereby playing the role of adjusting the height of the product to be welded, which is convenient for subsequent clamping;

[0061] S2, clamping step: after the positioning of the product to be welded is completed, the cylinder 6 drives the mounting box 7 and the electric clamp 8 on the same side to move synchronously toward the direction of the product to be welded, and then the electric clamp 8 clamps the product to be welded, which can play the role of positioning and fixing the product to be welded, and the third reduction motor 34 can be used to drive the same group of connecting rods 33 to rotate, and the connecting rod 33 drives the same group of electric clamps 8 to rotate, thereby playing the role of flipping the product to be welded, so that the equipment can weld different surfaces of the product to be welded;

[0062] S3, welding step: after the product to be welded is clamped and fixed, the robot arm 10 can be used to move the welding gun 11 to the position where the product to be welded is required to be welded, and the product to be welded can be welded by the welding gun 11. The setting of the robot arm 10 can play a role in adjusting the position of the welding gun 11, so that the equipment can weld different positions of the product to be welded;

[0063] S4, angle adjustment step: the first reduction motor 16 drives the driving gear 17 to rotate, the driving gear 17 drives the driven gear 19 to rotate, the driven gear 19 drives the worm 18 to rotate, the worm 18 drives the turbine 22 to rotate, the turbine 22 drives the rotating rod 23 to rotate, the rotating rod 23 drives the supporting block 21 to rotate synchronously with the mounting seat 4 and the supporting platform 15, which can play a role in driving the product to be welded to turn over, and then play a role in adjusting the angle of the product to be welded, so that the equipment can weld different positions of the product to be welded. When the mounting seat 4 turns over, the mounting seat 4 pushes the two support rods 3 on one side to be located in the same group of movable grooves 27 The support rod 3 pushes the second spring 28 of the same group to contract, and the mounting seat 4 slides upward with the two support rods 3 on the other side located in the movable groove 27 of the same group, and the support rod 3 pulls the second spring 28 of the same group. Through the cooperation of the pillar 2, the second spring 28 and the support rod 3, the mounting seat 4 is supported and stabilized, which is beneficial to maintaining the stability of the rotation of the mounting seat 4. The main gear 30 is driven to rotate by the second reduction motor 29, the main gear 30 drives the sub-gear 32 to rotate, the sub-gear 32 drives the support column 31 to rotate, and the support column 31 drives the support platform 15 to rotate synchronously with the product to be welded, thereby adjusting the direction of the product to be welded.

[0064] The implementation principle of the embodiment of the present invention is as follows: when the equipment is used, the staff places the product to be welded on the top of the placement plate 13. The top of the placement plate 13 is provided with a limiting assembly, which plays a role in limiting and fixing the product to be welded, and can also play a role in calibrating and aligning the product to be welded. When the product is limited, the product to be welded can be clamped and fixed by the clamping assembly, which is beneficial to maintaining the stability of the product to be welded during welding. When the product to be welded is clamped, the mechanical arm 10 is used to move the welding gun 11 to the position where the product to be welded is required to be welded, and the product to be welded is welded by the welding gun 11. The setting of the mechanical arm 10 can play a role in adjusting the position of the welding gun 11, which is convenient for the equipment to weld different positions of the product to be welded, and when the welding of one side of the product to be welded is completed, the placement plate 13 is driven to descend and disengage from the product to be welded by the telescopic rod 14, and then the product to be welded can be driven to flip, which is convenient for the equipment to weld the other side of the product to be welded. When the product to be welded is flipped, the placement plate 13 can be driven to rise and contact the bottom end of the product to be welded by the telescopic rod 14, and the placement plate 13 can play a role in supporting and stabilizing the product to be welded.

[0065] The device can drive the support table 15 to rotate with the product to be welded through the rotating component, so as to adjust the direction of the product to be welded, and can drive the support block 21 to rotate with the mounting seat 4 and the support table 15 synchronously through the driving component, so as to drive the product to be welded to flip, and then adjust the angle of the product to be welded, so that the device can weld different positions of the product to be welded, and a supporting component is provided between the mounting seat 4 and the base 1, which can support and stabilize the mounting seat 4, and is conducive to maintaining the stability of the flipping of the mounting seat 4. The driving component, rotating component, clamping component and telescopic rod in the device are all powered by existing independent power supplies.

[0066] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-angle-changeable automobile body welding device, comprising a base (1), characterized in that: A frame (20) is fixedly mounted on the top of the base (1), a rotating rod (23) is rotatably mounted in the frame (20), a support block (21) is fixedly mounted on the side wall of the rotating rod (23), a mounting seat (4) is fixedly mounted on the top of the support block (21), a support platform (15) is rotatably mounted on the top of the mounting seat (4), a telescopic rod (14) is fixedly mounted on the top of the support platform (15), a placement plate (13) is provided on the top of the telescopic rod (14), a limiting assembly is provided on the top of the placement plate (13), two symmetrically distributed first support plates (5) are fixedly mounted on the side wall of the support platform (15), the two first support plates (5) both have "L"-shaped cross-sections, a clamping assembly is provided between the two first support plates (5), a rotating assembly is provided between the support platform (15) and the mounting seat (4), one end of the rotating rod (23) passes through the frame (20) and is provided with a driving assembly, and a support assembly is provided between the bottom end of the mounting seat (4) and the top of the base (1); A second support plate (9) is fixedly mounted on one side of the base (1); the second support plate (9) has an inverted "L"-shaped cross section; a mechanical arm (10) is provided at the bottom end of the second support plate (9); and a welding gun (11) is provided on the side wall of the end of the mechanical arm (10).

2. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: The limiting assembly comprises two support plates (12) fixedly mounted on the top of the placement plate (13); the two support plates (12) are symmetrically distributed at the top of the placement plate (13); two symmetrically distributed clamping plates (25) are slidably mounted between the two support plates (12); a plurality of first springs (24) distributed in a linear array are fixedly connected between the opposite sides of the two clamping plates (25) and the opposite sides of the support plates (12) on the same side; and rubber pads are fixedly mounted on the opposite sides of the two clamping plates (25).

3. The multi-angle-adjustable automobile body welding device according to claim 2, characterized in that: Two symmetrically distributed limiting blocks are fixedly mounted on the bottom ends of the two clamping plates (25), and a limiting groove matching the limiting blocks is formed on the top end of the placement plate (13).

4. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: The clamping assembly comprises a cylinder (6) arranged on the opposite side of the vertical section of the two first support plates (5), the piston shafts of the two cylinders (6) slidingly penetrate the first support plate (5) on the same side, the ends of the piston shafts of the two cylinders (6) are fixedly installed with a mounting box (7), and the third reduction motor (34) is fixedly installed in the two mounting boxes (7), the ends of the output shafts of the two third reduction motors (34) are fixedly installed with connecting rods (33), the opposite ends of the two connecting rods (33) penetrate the mounting box (7) on the same side, and the opposite ends of the two connecting rods (33) are fixedly installed with electric clamps (8).

5. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: The rotating assembly comprises a support column (31) fixedly mounted on the bottom end of the support platform (15); a mounting groove (26) is provided in the mounting seat (4); the bottom end of the support column (31) penetrates into the mounting groove (26) and is rotatably connected to the top end of the mounting groove (26); a side wall fixed sleeve of one end of the support column (31) penetrating the mounting groove (26) is provided with a secondary gear (32); a second reduction motor (29) is provided in the mounting groove (26); a main gear (30) is provided on the side wall fixed sleeve of the output shaft of the second reduction motor (29); the main gear (30) and the secondary gear (32) are meshed.

6. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: An annular groove is provided at the top of the mounting seat (4), a support ring is rotatably mounted in the annular groove, and the top of the support ring is fixedly connected to the bottom of the support platform (15).

7. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: The driving assembly comprises a turbine (22) fixedly mounted on a rotating rod (23) penetrating a side wall of one end of a frame (20); a worm rod (18) is rotatably mounted on the top of the base (1); the worm rod (18) and the turbine (22) are meshed; a driven gear (19) is fixedly mounted on the side wall of the lower section of the worm rod (18); a first reduction motor (16) is fixedly mounted on the top of the base (1); a driving gear (17) is fixedly mounted on the side wall of the output shaft of the first reduction motor (16); and the driving gear (17) and the driven gear (19) are meshed.

8. The multi-angle-adjustable automobile body welding device according to claim 1, characterized in that: The support assembly comprises four pillars (2) hinged to the top of the base (1); the four pillars (2) are symmetrically distributed at the top of the base (1); the tops of the four pillars (2) are each provided with a movable groove (27); a support rod (3) is slidably installed in each of the movable grooves (27); a second spring (28) is fixedly connected between the bottom end of the support rod (3) and the inner wall of the bottom end of the movable groove (27) in the same group; and the top end of the support rod (3) is hinged to the bottom end of the mounting seat (4).

9. The multi-angle-adjustable automobile body welding device according to claim 8, characterized in that: Two symmetrically distributed sliding blocks are fixedly mounted on the side walls at the bottom ends of the four support rods (3), and the inner wall of the movable groove (27) is provided with a sliding groove matching the sliding blocks in the same group.

10. A method for welding a car body with multiple angles, according to a device for welding a car body with multiple angles according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placement step: the staff places the product to be welded on the top of the placement plate (13), the placement plate (13) can play a role in supporting the product to be welded, and a limit assembly is provided on the top of the placement plate (13), the staff pushes the two clamping plates (25), and then places the product to be welded between the two clamping plates (25). When the product to be welded is placed, the clamping plate (25) moves toward the product to be welded under the elastic force of the first spring (24) of the same group, and the two clamping plates (25) cooperate to play a role in limiting clamping, and can play a role in aligning the product to be welded, and the height of the placement plate (13) can be adjusted by the telescopic rod (14), thereby playing a role in adjusting the height of the product to be welded, which is convenient for subsequent clamping; S2, clamping step: after the positioning of the product to be welded is completed, the cylinder (6) drives the mounting box (7) and the electric clamp (8) on the same side to move synchronously in the direction of the product to be welded, and then the electric clamp (8) clamps the product to be welded, so as to play the role of positioning and fixing the product to be welded, and the third reduction motor (34) can be used to drive the same group of connecting rods (33) to rotate, and the connecting rods (33) drive the same group of electric clamps (8) to rotate, thereby playing the role of flipping the product to be welded, so that the equipment can weld different surfaces of the product to be welded; S3, welding step: after the product to be welded is clamped and fixed, the mechanical arm (10) can be moved with the welding gun (11) to the desired welding position of the product to be welded, and the product to be welded can be welded by the welding gun (11). The setting of the mechanical arm (10) can play a role in adjusting the position of the welding gun (11), so that the equipment can weld different positions of the product to be welded; S4, angle adjustment step: the first reduction motor (16) drives the driving gear (17) to rotate, the driving gear (17) drives the driven gear (19) to rotate, the driven gear (19) drives the worm (18) to rotate, the worm (18) drives the turbine (22) to rotate, the turbine (22) drives the rotating rod (23) to rotate, the rotating rod (23) drives the supporting block (21) to rotate synchronously with the mounting seat (4) and the supporting platform (15), so as to drive the product to be welded to turn over, and then to adjust the angle of the product to be welded, so as to facilitate the equipment to weld different positions of the product to be welded. When the mounting seat (4) turns over, the mounting seat 4 pushes the two support rods (3) on one side to slide in the same group of movable grooves (27). The support rod (3) pushes the second spring (28) of the same group to contract, and the mounting seat (4) slides upward with the two support rods (3) on the other side located in the movable groove (27) of the same group, and the support rod (3) pulls the second spring (28) of the same group, and through the cooperation of the pillar (2), the second spring (27) and the support rod (3), the mounting seat (4) is supported and stabilized, which is conducive to maintaining the stability of the rotation of the mounting seat (4), and the main gear (30) is driven to rotate by the second reduction motor (29), the main gear (30) drives the sub-gear (32) to rotate, the sub-gear (32) drives the support column (31) to rotate, and the support column (31) drives the support platform (15) to rotate synchronously with the product to be welded, thereby playing a role in adjusting the direction of the product to be welded.

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