Multi-station full-automatic welding device and welding method thereof

Abstract

According to the multi-station full-automatic welding device and method, the inner side surface of a main control machine base is fixedly connected with a main driving box, the output end of the main driving box is connected with a rotary welding table through a shaft, and the outer surface of the rotary welding table is rotationally connected with a pneumatic rotary clamping base; the end of the left side of the rotary welding table is connected with an auxiliary machine base through a rotating shaft, the front surface of the main control machine base is fixedly connected with a first supporting arm, the front surface of the auxiliary machine base is fixedly connected with a second supporting arm, and the inner side surface of the first supporting arm is fixedly connected with a second lead screw base. And the welding efficiency is improved. The first movable beam and the second movable beam can accurately control the in-out distance through a lead screw motor, and the welding position is adjusted. The first welding gun and the second welding gun can adjust the welding angle through the adjusting base and the adjusting arm, the first linear motor and the second linear motor are used for integrally adjusting the synchronous welding position, and the welding requirements of different workpieces are met.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic welding, and in particular to a multi-station full-automatic welding device and a welding method thereof. Background Art

[0002] Welding is a process in which the materials of the workpieces are heated or pressurized or both, with or without filler materials, to form a permanent connection. During the welding process, the workpiece and the solder melt to form a molten area. After the molten pool cools and solidifies, a connection between the materials is formed. In this process, pressure is usually required. There are many sources of energy for welding, including gas flame, arc, laser, electron beam, friction and ultrasound. With the rapid development of science and technology, workpiece welding technology is becoming more and more advanced, especially in multi-station welding, which requires a multi-station fully automatic welding device.

[0003] In order to improve the quality of welding and shorten the welding time, more and more companies are using welding machines for welding. The welding machine generally includes a bracket, a base arranged in the bracket, a clamping device fixed on the base for clamping the welded workpiece, and a welding head for welding. In the past, when welding, most of the workpieces were placed in the clamping device by manual operation, and the welding head was used to weld and weld the workpieces. After welding, the workpieces were taken out manually to complete an operation. This welding method not only takes up a lot of labor and has low work efficiency, but also is not conducive to the stability of product quality and cannot achieve large-scale and large-scale production. Therefore, in view of the above shortcomings, this scheme proposes a multi-station fully automatic welding device and a welding method thereof. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a multi-station fully automatic welding device and a welding method thereof. The device is provided with a rotating welding table and a plurality of welding guns, which can realize multi-station simultaneous welding, improve welding efficiency, and meet the needs of large-scale production. The movable beam 1 and the movable beam 2 can be used to accurately control the in-and-out distance through the screw motor to adjust the welding position. The first welding gun and the second welding gun can adjust the welding angle through the adjustment seat and the adjustment arm, and the linear motor 1 and the linear motor 2 can be used to adjust the position of synchronous welding as a whole, so as to meet the welding requirements of different workpieces.

[0005] The present invention also provides the above-mentioned multi-station full-automatic welding device, comprising: a main control machine base, the inner surface of the main control machine base is fixedly connected to a main drive box, the output end of the main drive box is connected to a rotary welding table through a shaft, the outer surface of the rotary welding table is rotatably connected to a pneumatic rotary clamping seat, the left end of the rotary welding table is connected to an auxiliary machine base through a rotating shaft, the front surface of the main control machine base is fixedly connected to a first support arm, the front surface of the auxiliary machine base is fixedly connected to a second support arm, the inner surface of the first support arm is fixedly connected to a second screw seat, and the inner surface of the second support arm is fixedly connected to the first screw seat;

[0006] The inner surface of the first support arm is slidably connected to a movable beam 1, the left end of the movable beam 1 is slidably connected to the second support arm, the side surface of the movable beam 1 is fixedly connected to a linear motor 1, the output end of the linear motor 1 is fixedly connected to an adapter plate 1, the upper surface of the movable beam 1 is slidably connected to a first slide seat, and the adapter plate 1 is fixedly connected to the first slide seat;

[0007] The left and right ends of the upper surface of the first sliding seat are fixedly connected to a lower support arm 1, the outer surface of the lower support arm 1 is fixedly connected to a lower supporting plate 1, the upper surface of the lower supporting plate 1 is fixedly connected to a telescopic rod 1, the output end of the telescopic rod 1 is fixedly connected to an upper support plate 1, the outer surface of the upper support plate 1 is fixedly connected to an upper support arm 1, the inner side of the upper support arm 1 is fixedly connected to a first supporting rod, the outer surface of the first supporting rod is movably connected to an adjusting seat 1, the adjusting seat 1 is provided with three groups, the outer surfaces of the three groups of adjusting seats 1 are movably connected to an adjusting arm 1, the outer surface of the adjusting arm 1 is movably connected to a welding gun seat 1, and the outer surface of the welding gun seat 1 is fixedly connected to a first welding gun;

[0008] The rear surface of the main control base is fixedly connected with a third arm, the rear surface of the auxiliary base is fixedly connected with a fourth arm, the inner surface of the third arm is fixedly connected with a fourth screw seat, and the inner surface of the fourth arm is fixedly connected with the third screw seat; the inner surface of the third arm is slidably connected with a movable beam 2, the left end of the movable beam 2 is slidably connected with the fourth arm, the side surface of the movable beam 2 is fixedly connected with a linear motor 2, the output end of the linear motor 2 is fixedly connected with an adapter plate 2, the upper surface of the movable beam 2 is slidably connected with a second slide seat, and the adapter plate 2 is fixedly connected to the second slide seat;

[0009] The left and right ends of the lower surface of the second sliding seat are fixedly connected to the lower support arm 2, the outer surface of the lower support arm 2 is fixedly connected to the lower supporting plate 2, the lower surface of the lower supporting plate 2 is fixedly connected to the telescopic rod 3, the output end of the telescopic rod 3 is fixedly connected to the lower supporting plate 3, the outer surface of the lower supporting plate 2 is fixedly connected to the upper support arm 2, the inner side of the upper support arm 2 is fixedly connected to the second support rod, the outer surface of the second support rod is movably connected to the adjusting seat 2, the adjusting seat 2 is provided with three groups, the outer surfaces of the three groups of the adjusting seat 2 are movably connected to the adjusting arm 2, the outer surface of the adjusting arm 2 is movably connected to the welding gun seat 2, and the outer surface of the welding gun seat 2 is fixedly connected to the second welding gun;

[0010] The pneumatic rotary clamp is provided with two groups, with six in each group. The two groups of pneumatic rotary clamps are respectively located on two different surfaces of the rotary welding table. Support frames are provided around the pneumatic rotary clamp, and the support frames are fixedly connected to the outer surface of the rotary welding table. Every three support frames are combined with one of the pneumatic rotary clamps. A slide groove is provided on the outer surface of the support frame, and a movable abutment plate is slidably connected to the inside of the slide groove. A slide rod is slidably connected to the outer surface of the support frame, and an angle adjustment bracket is fixedly connected to the upper end surface of the slide rod. The outer surface of the angle adjustment bracket is connected to a guide wheel through an axis, and a workpiece is detachably connected to the chuck of the pneumatic rotary clamp, and the outer surface of the workpiece is rotatably connected to the guide wheel.

[0011] According to a multi-station fully automatic welding device provided by the present invention, the side surface of the upper arm 1 is fixedly connected with an active connecting plate 1, the active connecting plate 1 is slidably connected to the lower arm 1, the side surface of the lower arm 2 is fixedly connected with an active connecting plate 2, the active connecting plate 2 is slidably connected to the upper arm 2, and the outer surface of the upper arm 2 is fixedly connected to the lower supporting plate 3. The height of the upper arm 1 can be adjusted up and down, so that the overall height of the first welding gun can be effectively adjusted.

[0012] According to a multi-station fully automatic welding device provided by the present invention, one end of the first screw seat is fixedly connected to a screw motor 1, the first screw seat is internally rotatably connected to a screw, the screw is fixedly connected to the screw motor 1, the left lower surface of the movable beam 1 is connected to the screw via a screw nut seat, one end of the second screw seat is fixedly connected to a screw motor 2, the second screw seat is internally rotatably connected to a screw, the output end of the screw motor 2 is fixedly connected to the screw, and the right lower surface of the movable beam 1 is connected to the screw via a screw nut. The front-back distance adjustment of the movable beam 1 is realized.

[0013] According to a multi-station fully automatic welding device provided by the present invention, the outer surface of the support frame is fixedly connected with a fixed abutment plate, the outer surface of the fixed abutment plate is fixedly connected with a second telescopic rod, the output end of the second telescopic rod is fixedly connected with the outer surface of the movable abutment plate, and the outer surface of the movable abutment plate is fixedly connected with the lower end surface of the slide bar, so as to achieve height adjustment of the slide bar.

[0014] According to a multi-station fully automatic welding device provided by the present invention, a control panel is fixedly connected to the outer surface of the main control base, and a display is fixedly connected to the upper surface of the main control base, so as to facilitate the control and viewing of relevant data of the entire device.

[0015] According to a multi-station fully automatic welding device provided by the present invention, the outer surface of the first arm is fixedly connected to a feed table, the outer surface of the auxiliary machine base is fixedly connected to a discharge table, and one side of the feed table and the discharge table are provided with a robot to realize automatic loading.

[0016] According to a multi-station fully automatic welding device provided by the present invention, a first positioning rod is fixedly connected to the inner side of the upper arm 1, and the outer surface of the first positioning rod is movably connected to the adjustment seat 1, and a second positioning rod is fixedly connected to the inner side of the upper arm 2, and the outer surface of the second positioning rod is movably connected to the adjustment seat 2. It is convenient to fix the adjustment seat 1 and to facilitate its movement when the adjustment seat 1 is adjusted left and right.

[0017] According to a multi-station fully automatic welding device provided by the present invention, one end of the third screw seat is fixedly connected to a screw motor four, the third screw seat is internally rotatably connected to a screw, the screw is fixedly connected to the output end of the screw motor four, the right upper surface of the movable beam two is connected to the screw through a screw nut seat, one end of the fourth screw seat is fixedly connected to a screw motor three, the fourth screw seat is internally rotatably connected to a screw, the output end of the screw motor three is fixedly connected to the screw, and the left upper surface of the movable beam two is connected to the screw through a screw nut.

[0018] The present invention also provides the above-mentioned multi-station fully automatic welding method, comprising the following steps:

[0019] S1. Adjust the tooling. First, adjust the fully automatic welding device according to the corresponding size data of the workpiece, including the rotation angle of the rotary welding table, the in-and-out distance of the movable beam 1 and the welding angle of the first welding gun, the in-and-out distance of the movable beam 2 and the welding angle of the second welding gun, the support angle of the angle adjustment bracket, and the adjustment of the height of the slide bar;

[0020] S2, cyclic loading, the workpieces are loaded onto the rotary welding table in sequence through a manipulator arranged on one side of the feeding table, the workpieces are clamped by a pneumatic rotary clamp, and the guide wheel is used to support them during welding;

[0021] S3, synchronous welding, welding the workpiece on the rotating welding table by using the first welding gun and the second welding gun respectively;

[0022] S4, Circular discharging, through the manipulator set on one side of the discharging table, the welded workpieces are discharged in sequence.

[0023] Compared with the prior art, the present invention provides a multi-station fully automatic welding device, which is provided with a rotating welding table and a plurality of welding guns, and can realize multi-station simultaneous welding, thereby improving welding efficiency and being able to meet large-scale production needs.

[0024] Compared with the prior art, the multi-station fully automatic welding device of the present invention can adjust the welding position by precisely controlling the in-and-out distance of the movable beam 1 and the movable beam 2 through the screw motor. The welding angle can be adjusted by the first welding gun and the second welding gun through the adjustment seat and the adjustment arm, and the position of synchronous welding can be adjusted as a whole by the linear motor 1 and the linear motor 2, so as to meet the welding requirements of different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 This is an overall structural diagram of a multi-station fully automatic welding device of the present invention;

[0027] Figure 2 It is a side view of a multi-station fully automatic welding device of the present invention;

[0028] Figure 3 A top view of a multi-station fully automatic welding device of the present invention;

[0029] Figure 4 A bottom view of a multi-station fully automatic welding device of the present invention;

[0030] Figure 5 This is a rear view of a multi-station fully automatic welding device of the present invention;

[0031] Figure 6 This is a schematic diagram of the welding table structure of a multi-station fully automatic welding device of the present invention;

[0032] Figure 7 A multi-station fully automatic welding device of the present invention Figure 6 Enlarged view of point A in the middle;

[0033] Figure 8 A multi-station fully automatic welding device of the present invention Figure 5 Enlarged view of point B in the middle;

[0034] Fig. 9A multi-station fully automatic welding device of the present invention Figure 5 Enlarged view of point C in the middle.

[0035] Legend:

[0036] 1. Main control base; 2. Control panel; 3. Display; 4. First positioning rod; 5. First support arm; 6. Auxiliary base; 7. Second support arm; 8. Feeding table; 9. Linear motor 1; 10. First slide; 11. Lower support arm 1; 12. Active connecting plate 1; 13. Upper support arm 1; 14. First support rod; 15. Lower support plate 1; 16. Telescopic rod 1; 17. Upper support plate 1; 18. Active beam 1; 19. Adapter plate 1; 20. First screw seat; 21. Second screw seat; 22. Screw motor 1; 23. Screw motor 2; 24. Rotating welding table; 25. Third support arm; 26. Fourth support arm; 27. Third screw seat; 28. Fourth screw seat; 29. ​​Screw motor 3; 30. Screw motor 4; 31. Active beam 2 ;32. Linear motor two;33. Second slide;34. Adapter plate two;35. Main drive box;36. Pneumatic rotary clamp;37. Support frame;38. Movable abutment plate;39. Telescopic rod two;40. Fixed abutment plate;41. Slide rod;42. Angle adjustment bracket;43. Guide wheel;44. Workpiece;45. Slide;46. Adjustment arm one;47. Adjustment seat one;48. Welding gun seat one;49. First welding gun;50. Lower support arm two;51. Upper support arm two;52. Lower support plate two;53. Lower support plate three;54. Telescopic rod three;55. Movable connecting plate two;56. Second positioning rod;57. Second support rod;58. Adjustment seat two;59. Adjustment arm two;60. Welding gun seat two;61. Second welding gun;62. Discharging table. DETAILED DESCRIPTION

[0037] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0038] Reference Figure 1-9The embodiment of the present invention is a multi-station fully automatic welding device and a welding method thereof, which comprises: a main control base 1, the inner surface of the main control base 1 is fixedly connected with a main drive box 35, and a servo motor is arranged inside, and the power output by the servo motor drives the rotary welding table 24 to rotate. The output end of the main drive box 35 is connected with the rotary welding table 24 through a shaft, the outer surface of the rotary welding table 24 is rotatably connected with a pneumatic rotary clamp seat 36, the left end of the rotary welding table 24 is connected with an auxiliary base 6 through a rotating shaft, the front surface of the main control base 1 is fixedly connected with a first arm 5, the front surface of the auxiliary base 6 is fixedly connected with a second arm 7, the inner surface of the first arm 5 is fixedly connected with a second screw seat 21, and the inner surface of the second arm 7 is fixedly connected with a first screw seat 20; the outer surface of the main control base 1 is fixedly connected with a control panel 2, and the upper surface of the main control base 1 is fixedly connected with a display 3. One end of the first screw seat 20 is fixedly connected to a screw motor 22, and the first screw seat 20 is internally rotatably connected to a screw, the screw is fixedly connected to the screw motor 22, and the left lower surface of the movable beam 18 is connected to the screw through a screw nut seat, one end of the second screw seat 21 is fixedly connected to a screw motor 23, and the second screw seat 21 is internally rotatably connected to a screw, the output end of the screw motor 23 is fixedly connected to the screw, and the right lower surface of the movable beam 18 is connected to the screw through a screw nut.

[0039] The inner surface of the first arm 5 is slidably connected with a movable beam 18, the left end of the movable beam 18 is slidably connected with the second arm 7, the side surface of the movable beam 18 is fixedly connected with a linear motor 9, the output end of the linear motor 9 is fixedly connected with an adapter plate 19, the upper surface of the movable beam 18 is slidably connected with a first slide seat 10, and the adapter plate 19 is fixedly connected to the first slide seat 10; the outer surface of the first arm 5 is fixedly connected with a feed table 8, the outer surface of the auxiliary machine base 6 is fixedly connected with a discharge table 62, and a manipulator is provided on one side of the feed table 8 and the discharge table 62.

[0040] The left and right ends of the upper surface of the first sliding seat 10 are fixedly connected with the lower support arm 11, the outer surface of the lower support arm 11 is fixedly connected with the lower supporting plate 15, the upper surface of the lower supporting plate 15 is fixedly connected with the telescopic rod 16, the output end of the telescopic rod 16 is fixedly connected with the upper supporting plate 17, the outer surface of the upper supporting plate 17 is fixedly connected with the upper support arm 13, the inner side of the upper support arm 13 is fixedly connected with the first supporting rod 14, the outer surface of the first supporting rod 14 is movably connected with the adjusting seat 47, the adjusting seat 47 is provided with three groups, the outer surfaces of the three groups of adjusting seats 47 are movably connected with the adjusting arms 46, the outer surfaces of the adjusting arms 46 are movably connected with the welding gun seats 48, the outer surface of the welding gun seats 48 is fixedly connected with the first welding gun 49, and three groups are provided, so that the three groups can work synchronously during welding.

[0041] The side surface of the upper arm 13 is fixedly connected with the movable connecting plate 12, which is slidably connected to the lower arm 11. The side surface of the lower arm 2 50 is fixedly connected with the movable connecting plate 2 55, which is slidably connected to the upper arm 2 51, and the outer surface of the upper arm 2 51 is fixedly connected to the lower support plate 3 53. The inner side of the upper arm 13 is fixedly connected with the first positioning rod 4, and the outer surface of the first positioning rod 4 is movably connected to the adjustment seat 1 47. The inner side of the upper arm 2 51 is fixedly connected with the second positioning rod 56, and the outer surface of the second positioning rod 56 is movably connected to the adjustment seat 2 58.

[0042] The rear surface of the main control base 1 is fixedly connected with the third arm 25, the rear surface of the auxiliary base 6 is fixedly connected with the fourth arm 26, the inner surface of the third arm 25 is fixedly connected with the fourth screw seat 28, and the inner surface of the fourth arm 26 is fixedly connected with the third screw seat 27; the inner surface of the third arm 25 is slidably connected with the movable beam 2 31, the left end of the movable beam 2 31 is slidably connected with the fourth arm 26, the side surface of the movable beam 2 31 is fixedly connected with the linear motor 2 32, the output end of the linear motor 2 32 is fixedly connected with the adapter plate 2 34, and the upper surface of the movable beam 2 31 is slidably connected A second slide seat 33 is connected, and an adapter plate 24 is fixedly connected to the second slide seat 33; one end of the third screw seat 27 is fixedly connected to a screw motor 4 30, and the third screw seat 27 is internally rotatably connected to a screw, and the screw is fixedly connected to the output end of the screw motor 4 30, and the right upper surface of the movable beam 2 31 is connected to the screw through a screw nut seat, one end of the fourth screw seat 28 is fixedly connected to a screw motor 3 29, and the fourth screw seat 28 is internally rotatably connected to a screw, and the output end of the screw motor 3 29 is fixedly connected to the screw, and the left upper surface of the movable beam 2 31 is connected to the screw through a screw nut.

[0043] The left and right ends of the lower surface of the second sliding seat 33 are fixedly connected with lower supporting arms 2 50, the outer surface of the lower supporting arms 2 50 is fixedly connected with lower supporting plates 2 52, the lower surface of the lower supporting plates 2 52 is fixedly connected with telescopic rods 3 54, the output end of the telescopic rods 3 54 is fixedly connected with lower supporting plates 3 53, the outer surface of the lower supporting plates 2 52 is fixedly connected with upper supporting arms 2 51, the inner side of the upper supporting arms 2 51 is fixedly connected with a second supporting rod 57, the outer surface of the second supporting rod 57 is movably connected with an adjusting seat 2 58, the adjusting seat 2 58 is provided with three groups, the outer surfaces of the three groups of adjusting seats 2 58 are movably connected with adjusting arms 2 59, the outer surfaces of the adjusting arms 2 59 are movably connected with welding gun seats 2 60, and the outer surface of the welding gun seats 2 60 is fixedly connected with a second welding gun 61; there are three groups, and the three groups can be operated synchronously during welding.

[0044] There are two groups of pneumatic rotary clamps 36, each with six clamps. The two groups of pneumatic rotary clamps 36 are respectively located on two different surfaces of the rotary welding table 24. Support frames 37 are arranged around the pneumatic rotary clamps 36. The support frames 37 are fixedly connected to the outer surface of the rotary welding table 24. Every three support frames 37 are combined with one of the pneumatic rotary clamps 36. The outer surface of the support frame 37 is provided with a slide groove 45. The interior of the slide groove 45 is slidably connected to a movable abutment plate 38. The outer surface of the support frame 37 is slidably connected to a slide rod 41. The upper end surface of the slide rod 41 is fixedly connected to an angle adjustment bracket 42. The outer surface of the angle adjustment bracket 42 is connected to a guide wheel 43 through an axis. The pneumatic rotary clamp 36 is detachably connected to a workpiece 44 at the chuck, and the outer surface of the workpiece 44 is rotatably connected to the guide wheel 43. The outer surface of the support frame 37 is fixedly connected to a fixed abutment 40, the outer surface of the fixed abutment 40 is fixedly connected to a telescopic rod 39, the output end of the telescopic rod 39 is fixedly connected to the outer surface of the movable abutment 38, and the outer surface of the movable abutment 38 is fixedly connected to the lower end surface of the sliding rod 41.

[0045] A multi-station fully automatic welding device comprises the following steps:

[0046] S1. Adjust the tooling. First, adjust the fully automatic welding device according to the corresponding size data of the workpiece 44, including the rotation angle of the rotary welding table 24, the in-and-out distance of the movable beam 18 and the welding angle of the first welding gun 49, the in-and-out distance of the movable beam 2 31 and the welding angle of the second welding gun 61, the support angle of the angle adjustment bracket 42, and the height adjustment of the slide bar 41;

[0047] S2, cyclic loading, the workpiece 44 is loaded onto the rotary welding table 24 in sequence by a manipulator arranged on one side of the feeding table 8, the workpiece 44 is clamped by a pneumatic rotary clamp 36, and the guide wheel 43 is used to support it during welding. During the first loading, all the stations on the rotary welding table 24 are fully loaded, and then the subsequent cyclic welding and cyclic loading steps are entered;

[0048] S3, synchronous welding, welding the workpiece 44 on the rotary welding table 24 by the first welding gun 49 and the second welding gun 61 respectively; wherein the welding positions of the first welding gun 49 and the second welding gun 61 are set according to the different workpieces 44, and a two-step welding method is adopted, in the first step, welding the first welding area of ​​the workpiece 44 according to the setting of the first welding gun 49, and in the second step, driving the rotary welding table 24 by the main driving box 35, rotating the whole to the welding area of ​​the second welding gun 61, and welding the second welding area by the second welding gun 61;

[0049] During welding, the running track of the first welding gun 49 drives the first slide 10 from left to right in steps through the linear motor 1 9, and the second welding gun 61 drives the second slide 33 from right to left in steps through the linear motor 2 32;

[0050] S4, cyclic discharging, the robot arm arranged on one side of the discharging platform 62 discharges the welded workpieces 44 in sequence.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multi-station fully automatic welding device, characterized in that: include: A main control base (1), the inner surface of the main control base (1) is fixedly connected to a main drive box (35), the output end of the main drive box (35) is connected to a rotary welding table (24) via a shaft, the outer surface of the rotary welding table (24) is rotatably connected to a pneumatic rotary clamping seat (36), the left end of the rotary welding table (24) is connected to an auxiliary base (6) via a rotating shaft, the front surface of the main control base (1) is fixedly connected to a first support arm (5), the front surface of the auxiliary base (6) is fixedly connected to a second support arm (7), the inner surface of the first support arm (5) is fixedly connected to a second screw seat (21), and the inner surface of the second support arm (7) is fixedly connected to a first screw seat (20); The inner surface of the first support arm (5) is slidably connected to a movable beam (18), the left end of the movable beam (18) is slidably connected to the second support arm (7), the side surface of the movable beam (18) is fixedly connected to a linear motor (9), the output end of the linear motor (9) is fixedly connected to an adapter plate (19), the upper surface of the movable beam (18) is slidably connected to a first slide seat (10), and the adapter plate (19) is fixedly connected to the first slide seat (10); The left and right ends of the upper surface of the first slide seat (10) are fixedly connected to a lower support arm (11), the outer surface of the lower support arm (11) is fixedly connected to a lower support plate (15), the upper surface of the lower support plate (15) is fixedly connected to a telescopic rod (16), the output end of the telescopic rod (16) is fixedly connected to an upper support plate (17), the outer surface of the upper support plate (17) is fixedly connected to an upper support arm (13), the inner side of the upper support arm (13) is fixedly connected to a first support rod (14), the outer surface of the first support rod (14) is movably connected to an adjustment seat (47), the adjustment seat (47) is provided with three groups, the outer surfaces of the three groups of the adjustment seats (47) are movably connected to an adjustment arm (46), the outer surface of the adjustment arm (46) is movably connected to a welding gun seat (48), and the outer surface of the welding gun seat (48) is fixedly connected to a first welding gun (49); The rear surface of the main control base (1) is fixedly connected to a third support arm (25), the rear surface of the auxiliary base (6) is fixedly connected to a fourth support arm (26), the inner surface of the third support arm (25) is fixedly connected to a fourth screw seat (28), and the inner surface of the fourth support arm (26) is fixedly connected to a third screw seat (27); The inner surface of the third support arm (25) is slidably connected to a movable beam 2 (31), the left end of the movable beam 2 (31) is slidably connected to the fourth support arm (26), the side surface of the movable beam 2 (31) is fixedly connected to a linear motor 2 (32), the output end of the linear motor 2 (32) is fixedly connected to an adapter plate 2 (34), the upper surface of the movable beam 2 (31) is slidably connected to a second slide seat (33), and the adapter plate 2 (34) is fixedly connected to the second slide seat (33); The left and right ends of the lower surface of the second sliding seat (33) are fixedly connected with lower support arms 2 (50), the outer surface of the lower support arms 2 (50) is fixedly connected with lower supporting plates 2 (52), the lower surface of the lower supporting plates 2 (52) is fixedly connected with telescopic rods 3 (54), the output end of the telescopic rods 3 (54) is fixedly connected with lower supporting plates 3 (53), the outer surface of the lower supporting plates 2 (52) is fixedly connected with upper support arms 2 (51), the inner side of the upper support arms 2 (51) is fixedly connected with a second supporting rod (57), the outer surface of the second supporting rod (57) is movably connected with an adjusting seat 2 (58), the adjusting seat 2 (58) is provided with three groups, the outer surfaces of the three groups of adjusting seats 2 (58) are movably connected with adjusting arms 2 (59), the outer surface of the adjusting arms 2 (59) is movably connected with welding gun seats 2 (60), and the outer surface of the welding gun seats 2 (60) is fixedly connected with a second welding gun (61); The pneumatic rotary clamping seat (36) is provided with two groups, each group has six members, and the two groups of pneumatic rotary clamping seats (36) are respectively located on two different surfaces of the rotary welding table (24). A support frame (37) is provided around the pneumatic rotary clamping seat (36), and the support frame (37) is fixedly connected to the outer surface of the rotary welding table (24). Every three of the support frames (37) are combined with one of the pneumatic rotary clamping seats (36), and the outer surface of the support frame (37) is provided with a slide groove (4 5), the interior of the slide groove (45) is slidably connected to a movable stop plate (38), the outer surface of the support frame (37) is slidably connected to a slide rod (41), the upper end surface of the slide rod (41) is fixedly connected to an angle adjustment bracket (42), the outer surface of the angle adjustment bracket (42) is connected to a guide wheel (43) via an axis, the chuck of the pneumatic rotary clamp (36) is detachably connected to a workpiece (44), and the outer surface of the workpiece (44) is rotatably connected to the guide wheel (43).

2. A multi-station fully automatic welding device according to claim 1, characterized in that: The side surface of the upper arm 1 (13) is fixedly connected with an active connecting plate 1 (12), and the active connecting plate 1 (12) is slidably connected to the lower arm 1 (11). The side surface of the lower arm 2 (50) is fixedly connected with an active connecting plate 2 (55), and the active connecting plate 2 (55) is slidably connected to the upper arm 2 (51). The outer surface of the upper arm 2 (51) is fixedly connected to the lower support plate 3 (53).

3. The multi-station fully automatic welding device according to claim 1, characterized in that: One end of the first screw seat (20) is fixedly connected to a screw motor 1 (22), the first screw seat (20) is internally rotatably connected to a screw, the screw is fixedly connected to the screw motor 1 (22), the left lower surface of the movable beam 1 (18) is connected to the screw via a screw nut seat, one end of the second screw seat (21) is fixedly connected to a screw motor 2 (23), the second screw seat (21) is internally rotatably connected to a screw, the output end of the screw motor 2 (23) is fixedly connected to the screw, and the right lower surface of the movable beam 1 (18) is connected to the screw via a screw nut.

4. The multi-station fully automatic welding device according to claim 1, characterized in that: The outer surface of the support frame (37) is fixedly connected to a fixed abutment plate (40), the outer surface of the fixed abutment plate (40) is fixedly connected to a second telescopic rod (39), the output end of the second telescopic rod (39) is fixedly connected to the outer surface of the movable abutment plate (38), and the outer surface of the movable abutment plate (38) is fixedly connected to the lower end surface of the sliding rod (41).

5. The multi-station fully automatic welding device according to claim 1, characterized in that: The outer surface of the main control base (1) is fixedly connected to a control panel (2), and the upper surface of the main control base (1) is fixedly connected to a display (3).

6. The multi-station fully automatic welding device according to claim 1, characterized in that: The outer surface of the first support arm (5) is fixedly connected to a feed table (8), and the outer surface of the auxiliary machine base (6) is fixedly connected to a discharge table (62). A robot is provided on one side of the feed table (8) and the discharge table (62).

7. The multi-station fully automatic welding device according to claim 1, characterized in that: The inner side of the upper support arm 1 (13) is fixedly connected to a first positioning rod (4), and the outer surface of the first positioning rod (4) is movably connected to the adjustment seat 1 (47). The inner side of the upper support arm 2 (51) is fixedly connected to a second positioning rod (56), and the outer surface of the second positioning rod (56) is movably connected to the adjustment seat 2 (58).

8. The multi-station fully automatic welding device according to claim 1, characterized in that: One end of the third screw seat (27) is fixedly connected to a screw motor four (30), the third screw seat (27) is internally rotatably connected to a screw, the screw is fixedly connected to the output end of the screw motor four (30), the right upper surface of the movable beam two (31) is connected to the screw via a screw nut seat, one end of the fourth screw seat (28) is fixedly connected to a screw motor three (29), the fourth screw seat (28) is internally rotatably connected to a screw, the output end of the screw motor three (29) is fixedly connected to the screw, and the left upper surface of the movable beam two (31) is connected to the screw via a screw nut.

9. A multi-station fully automatic welding device and a welding method thereof, characterized in that A multi-station fully automatic welding device as described in claims 1-8 is used, comprising the following steps: S1. Adjusting the tooling, firstly adjusting the fully automatic welding device according to the corresponding size data of the workpiece (44), including the rotation angle of the rotary welding table (24), the in-and-out distance of the movable beam 1 (18) and the welding angle of the first welding gun (49), the in-and-out distance of the movable beam 2 (31) and the welding angle of the second welding gun (61), the support angle of the angle adjustment bracket (42), and the height adjustment of the slide bar (41); S2, cyclic loading, the workpiece (44) is sequentially loaded onto the rotary welding table (24) by a manipulator arranged on one side of the feeding table (8), the workpiece (44) is clamped by a pneumatic rotary clamp (36), and the guide wheel (43) is used to support it during welding. S3, synchronous welding, welding the workpiece (44) on the rotary welding table (24) by using the first welding gun (49) and the second welding gun (61) respectively. S4, cyclic discharging, the welded workpieces (44) are discharged in sequence through a robot provided on one side of the discharging platform (62).

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