阅读说明：本技术 一种多角度无死角的焊接装置及其使用方法 (Multi-angle welding device without dead angle and using method thereof ) 是由 郭海艇 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种多角度无死角的焊接装置及其使用方法,涉及焊接技术领域,包括工作台,工作台的底部安装有第一电机,第一电机的输出端固定连接有转杆,转杆贯穿工作台,转杆的输出端固定连接有转盘,转盘的表面设置有工件,工作台的表面固定连接有立板,立板的侧壁开有第一凹槽,立板的上端安装有第二电机,第二电机的输出端固定连接有第一螺杆,第一螺杆贯穿立板,第一螺杆的外壁上螺纹连接有第一移动板,第一移动板滑动连接在第一凹槽内,第一移动板的表面通过第一支撑板连接有焊枪,通过控制第二电机能够调节焊枪在Z轴方向上的位置,通过控制第一电机能够调节工件在X-Y平面的角度,实现对工件多角度焊接。(The invention discloses a multi-angle welding device without dead angles and a use method thereof, relating to the technical field of welding, comprising a workbench, wherein the bottom of the workbench is provided with a first motor, the output end of the first motor is fixedly connected with a rotating rod, the rotating rod penetrates through the workbench, the output end of the rotating rod is fixedly connected with a rotating disc, the surface of the rotating disc is provided with a workpiece, the surface of the workbench is fixedly connected with a vertical plate, the side wall of the vertical plate is provided with a first groove, the upper end of the vertical plate is provided with a second motor, the output end of the second motor is fixedly connected with a first screw rod, the first screw rod penetrates through the vertical plate, the outer wall of the first screw rod is in threaded connection with a first moving plate, the first moving plate is in sliding connection with the first groove, the surface of the first moving plate is connected with a welding gun through a first supporting plate, the position of the welding gun in the Z-axis direction can be adjusted by controlling the first motor, the angle of the workpiece in an X-Y plane can be adjusted by controlling the first motor, realize the multi-angle welding to the work piece.)

1. The utility model provides a welding set at multi-angle no dead angle, includes workstation (1), its characterized in that: the automatic feeding device is characterized in that a first motor (2) is installed at the bottom of the workbench (1), an output end of the first motor (2) is fixedly connected with a rotating rod (3), the rotating rod (3) penetrates through the workbench (1), an output end of the rotating rod (3) is fixedly connected with a rotating disc (4), a workpiece (5) is arranged on the surface of the rotating disc (4), a vertical plate (6) is fixedly connected with the surface of the workbench (1), a first groove (7) is formed in the side wall of the vertical plate (6), a second motor (8) is installed at the upper end of the vertical plate (6), a first screw (9) is fixedly connected with the output end of the second motor (8), the first screw (9) penetrates through the vertical plate (6), a first moving plate (16) is connected to the outer wall of the first screw (9) in a threaded manner, and the first moving plate (16) is connected in the first groove (7) in a sliding manner, the surface of the first moving plate (16) is connected with a welding gun (20) through a first supporting plate (11).

2. The welding device of claim 1, wherein the welding device comprises: the utility model discloses a welding gun, including first backup pad (11), second recess (12) are opened to the lateral wall of first backup pad (11), symmetry fixedly connected with guide arm (15) in second recess (12), the fixed surface of first backup pad (11) is connected with third motor (13), the output fixedly connected with second screw rod (14) of third motor (13), threaded connection has second movable plate (17) on the outer wall of second screw rod (14), second movable plate (17) is run through in guide arm (15), and second movable plate (17) and guide arm (15) sliding connection, the surface mounting of second movable plate (17) has fourth motor (18), the output fixedly connected with linking plate (19) of fourth motor (18), linking plate (19) and welder (20) fixed connection.

3. The welding device of claim 2, wherein: the upper surface of the rotating disc (4) is fixedly connected with a second supporting plate (21), the surface of the second supporting plate (21) is provided with a third groove (22), the side wall of the second supporting plate (21) is fixedly connected with a fifth motor (23), the output end of the fifth motor (23) is fixedly connected with a third screw (24), the outer wall of the third screw (24) is in threaded connection with a third moving plate (26), the third moving plate (26) is connected in the third groove (22) in a sliding manner, the upper end of the third moving plate (26) is fixedly connected with a third supporting plate (27), the surface of the third supporting plate (27) is provided with a first air cylinder (28) and a second air cylinder (29), the output end of the first air cylinder (28) is hinged with a fourth supporting plate (30), the output end of the second air cylinder (29) is hinged with the fourth supporting plate (30), the workpiece (5) is positioned on the surface of the fourth supporting plate (30).

4. The welding device of claim 3, wherein: the surface of the second supporting plate (21) is symmetrically provided with sliding grooves (25), the second supporting plate (21) penetrates through the third moving plate (26), and the third moving plate (26) is in sliding connection with the sliding grooves (25).

5. The welding device of claim 4, wherein: one side of the workpiece (5) is provided with a second clamp (32), the other side of the workpiece (5) is provided with a fourth clamp (34), one end, close to the vertical plate (6), of the workpiece (5) is provided with a first clamp (31), the other end of the workpiece (5) is provided with a third clamp (33), and the bottoms of the first clamp (31), the second clamp (32), the third clamp (33) and the fourth clamp (34) are fixedly connected with a fourth supporting plate (30).

6. The welding device of claim 5, wherein: first anchor clamps (31) are including installing first base (311) on fourth backup pad (30) surface, there is first regulating plate (312) upper end through bolted connection of first base (311), first regulating plate (312) keep away from first locating column (313) of one end fixedly connected with of first base (311), fourth anchor clamps (34) are including installing fourth base (341) on fourth backup pad (30) surface, there is second fly leaf (342) upper end through the round pin hub connection of fourth base (341), the one end of second fly leaf (342) is connected with second reference column (344) through fourth regulating plate (343), work piece (5) are all run through in first locating column (313), second reference column (344).

7. The welding device of claim 6, wherein: second anchor clamps (32) are including installing second base (321) on fourth backup pad (30) surface, one side of second base (321) is connected with first splint (323) through first fly leaf (322), the opposite side of second base (321) is connected with second splint (325) through second regulating plate (324), third anchor clamps (33) are including installing third base (331) on fourth backup pad (30) surface, one side of third base (331) is provided with third splint (333), the opposite side of third base (331) is provided with third regulating plate (332).

8. The use method of the multi-angle welding device without dead angles in claim 7 is characterized by comprising the following steps:

s1: fixing of the workpiece (5): penetrating a second positioning column (344) through the bottom of the workpiece (5), penetrating a first positioning column (313) through the upper end of the workpiece (5), positioning the workpiece (5), and clamping the workpiece (5) by using a second clamp (32) and a third clamp (33);

s2: position adjustment of the welding gun (20): starting a second motor (8) to drive a first screw rod (9) to rotate, adjusting the position of a welding gun (20) in the Z-axis direction, starting a third motor (13) to drive a second screw rod (14) to rotate, and adjusting the position of the welding gun (20) in the Y-axis direction;

s3: position adjustment of the workpiece (5): starting a fifth motor (23) to drive a third screw rod (24) to rotate, and adjusting the position of the workpiece (5) in the X-axis direction;

s4: angle adjustment of the workpiece (5): a first motor (2) is started to drive a rotating rod (3) to rotate, the rotating rod (3) rotates to drive a rotating disc (4) to rotate, the angle of a workpiece (5) on an X-Y plane is adjusted, a first air cylinder (28) is started to push a fourth supporting plate (30) to turn over, and the angle of the workpiece (5) on a Y-Z plane is adjusted.

Technical Field

The invention relates to the technical field of welding, in particular to a multi-angle welding device without dead angles and a using method thereof.

Background

Welding, also known as fusion or melt welding, is a process and technique for joining metals or other thermoplastic materials, such as plastics, by heating, at high temperature or high pressure, and requires a transmission to drive a welding gun to weld the fixed workpieces during the welding process.

The existing welding device is mostly operated by a whole-course manual work, welding quality is influenced when welding efficiency is reduced, welding processing risks are increased, welding safety performance is reduced, and multi-angle welding can not be carried out on a workpiece due to the fixity of the welding device.

Disclosure of Invention

The invention provides a multi-angle welding device without dead angles and a using method thereof, and aims to solve the problems in the prior art.

In order to solve the problems, the invention adopts the following technical scheme:

a multi-angle welding device without dead angles comprises a workbench, wherein a first motor is installed at the bottom of the workbench, a rotating rod is fixedly connected to the output end of the first motor, the rotating rod penetrates through the workbench, a rotary disc is fixedly connected to the output end of the rotating rod, a workpiece is arranged on the surface of the rotary disc, a vertical plate is fixedly connected to the surface of the workbench, a first groove is formed in the side wall of the vertical plate, a second motor is installed at the upper end of the vertical plate, a first screw rod is fixedly connected to the output end of the second motor, penetrates through the vertical plate, a first moving plate is connected to the outer wall of the first screw rod in a threaded mode and is slidably connected into the first groove, a welding gun is connected to the surface of the first moving plate through a first supporting plate, the position of the welding gun in the Z-axis direction can be adjusted through control of the second motor, and the angle of the workpiece on an X-Y plane can be adjusted through control of the first motor, realize the multi-angle welding to the work piece.

As a preferable scheme of the present invention, a second groove is formed in a side wall of the first support plate, guide rods are symmetrically and fixedly connected in the second groove, a third motor is fixedly connected to a surface of the first support plate, a second screw is fixedly connected to an output end of the third motor, a second moving plate is connected to an outer wall of the second screw in a threaded manner, the guide rods penetrate through the second moving plate, the second moving plate is slidably connected to the guide rods, a fourth motor is mounted on a surface of the second moving plate, an output end of the fourth motor is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to a welding gun.

As a preferable scheme of the present invention, a second support plate is fixedly connected to an upper surface of the turntable, a third groove is formed in a surface of the second support plate, a fifth motor is fixedly connected to a side wall of the second support plate, an output end of the fifth motor is fixedly connected to a third screw, a third moving plate is connected to an outer wall of the third screw in a threaded manner, the third moving plate is slidably connected to the third groove, a third support plate is fixedly connected to an upper end of the third moving plate, a first cylinder and a second cylinder are mounted on a surface of the third support plate, an output end of the first cylinder is hinged to a fourth support plate, an output end of the second cylinder is hinged to the fourth support plate, and the workpiece is located on a surface of the fourth support plate.

As a preferable aspect of the present invention, sliding grooves are symmetrically formed on a surface of the second support plate, the second support plate penetrates through the third moving plate, and the third moving plate is slidably connected to the sliding grooves.

As a preferable scheme of the invention, a second clamp is arranged on one side of the workpiece, a fourth clamp is arranged on the other side of the workpiece, a first clamp is arranged at one end of the workpiece close to the vertical plate, a third clamp is arranged at the other end of the workpiece, and bottoms of the first clamp, the second clamp, the third clamp and the fourth clamp are fixedly connected with a fourth supporting plate.

As a preferable scheme of the invention, the first fixture comprises a first base installed on the surface of a fourth supporting plate, the upper end of the first base is connected with a first adjusting plate through a bolt, one end of the first adjusting plate, which is far away from the first base, is fixedly connected with a first positioning column, the fourth fixture comprises a fourth base installed on the surface of the fourth supporting plate, the upper end of the fourth base is connected with a second movable plate through a pin shaft, one end of the second movable plate is connected with a second positioning column through a fourth adjusting plate, and the first positioning column and the second positioning column both penetrate through the workpiece.

As a preferable scheme of the present invention, the second clamp includes a second base mounted on a surface of a fourth support plate, one side of the second base is connected to a first clamp plate through a first movable plate, the other side of the second base is connected to a second clamp plate through a second adjustment plate, the third clamp includes a third base mounted on a surface of the fourth support plate, one side of the third base is provided with a third clamp plate, and the other side of the third base is provided with a third adjustment plate.

As a preferable scheme of the invention, the use method of the welding device based on the multi-angle and no dead angle comprises the following steps:

s1: fixing the workpiece: penetrating a second positioning column through the bottom of the workpiece, penetrating a first positioning column through the upper end of the workpiece, positioning the workpiece, and clamping the workpiece by using a second clamp and a third clamp;

s2: position adjustment of the welding gun: starting a second motor to drive a first screw rod to rotate, adjusting the position of a welding gun in the Z-axis direction, starting a third motor to drive a second screw rod to rotate, and adjusting the position of the welding gun in the Y-axis direction;

s3: position adjustment of the workpiece: starting a fifth motor to drive a third screw rod to rotate, and adjusting the position of the workpiece in the X-axis direction;

s4: angle adjustment of the workpiece: and starting the first motor to drive the rotating rod to rotate, driving the rotating disk to rotate by the rotation of the rotating rod, adjusting the angle of the workpiece on the X-Y plane, starting the first air cylinder to push the fourth supporting plate to turn over, and adjusting the angle of the workpiece on the Y-Z plane.

Compared with the prior art, the invention has the advantages that:

(1) the first motor is started to drive the rotating rod to rotate, the rotating rod rotates to drive the rotating disc to rotate, so that the angle of a workpiece on an X-Y plane is adjusted, the fifth motor is started to drive the third screw rod to rotate, the third screw rod rotates to drive the third moving plate to move in the X-axis direction through the mutual matching between the third moving plate and the sliding groove, the third moving plate moves to drive the fourth supporting plate to move in the X-axis direction, the fourth supporting plate moves to drive the workpiece to move in the X-axis direction, the welding of the upper surface of the workpiece is achieved, the first air cylinder is started to push the fourth supporting plate to rotate around the center of the second air cylinder, and vice versa, so that the angle of the workpiece on the Y-Z plane is adjusted, and the multi-angle dead-corner-free welding is achieved.

(2) Through first anchor clamps, the second anchor clamps, the third anchor clamps, mutually support between the fourth anchor clamps, can realize the centre gripping to special-shaped workpiece, the application scope of this device has been widened, run through the bottom of work piece with the second reference column, run through the upper end of work piece with first reference column, realize the quick location of work piece, the second regulating plate, all open a plurality of screw holes on the lateral wall of second base, can adjust the distance between second regulating plate and the work piece, through the design to first splint and second splint, can be with the work piece centre gripping between first splint and second splint, thereby the position of fixed work piece, prevent that the work piece from appearing rocking phenomenon in the welding process, thereby influence welding quality.

Drawings

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

FIG. 2 is a schematic view of a portion of the structure of the present invention;

FIG. 3 is another schematic structural view of a portion of the present invention;

FIG. 4 is a structural diagram of a fourth clamping apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second clamp in the embodiment of the present invention.

The reference numbers in the figures illustrate:

1. a work table; 2. a first motor; 3. a rotating rod; 4. a turntable; 5. a workpiece; 6. a vertical plate; 7. a first groove; 8. a second motor; 9. a first screw; 10. a guide rail; 11. a first support plate; 12. a second groove; 13. a third motor; 14. a second screw; 15. a guide bar; 16. a first moving plate; 17. a second moving plate; 18. a fourth motor; 19. a connector tile; 20. a welding gun; 21. a second support plate; 22. a third groove; 23. a fifth motor; 24. a third screw; 25. a chute; 26. a third moving plate; 27. a third support plate; 28. a first cylinder; 29. a second cylinder; 30. a fourth support plate; 31. a first clamp; 311. a first base; 312. a first adjusting plate; 313. a first positioning post; 32. a second clamp; 321. a second base; 322. a first movable plate; 323. a first splint; 324. a second adjusting plate; 325. a second splint; 33. a third clamp; 331. a third base; 332. a third adjusting plate; 333. a third splint; 34. a fourth clamp; 341. a fourth base; 342. a second movable plate; 343. a fourth adjusting plate; 344. and a second positioning column.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-2, a multi-angle welding device without dead angle includes a workbench 1, a first motor 2 is installed at the bottom of the workbench 1, a rotating rod 3 is fixedly connected to an output end of the first motor 2, the rotating rod 3 penetrates through the workbench 1, the rotating rod 3 is rotatably connected to the workbench 1 through a bearing, a rotary table 4 is fixedly connected to an output end of the rotating rod 3, a workpiece 5 is disposed on a surface of the rotary table 4, a vertical plate 6 is fixedly connected to a surface of the workbench 1, a first groove 7 is formed in a side wall of the vertical plate 6, a second motor 8 is installed at an upper end of the vertical plate 6, a first screw 9 is fixedly connected to an output end of the second motor 8, the first screw 9 penetrates through the vertical plate 6, the first screw 9 is rotatably connected to the vertical plate 6 through a bearing, a first moving plate 16 is threadedly connected to an outer wall of the first screw 9, it should be added that a guide rail 10 is symmetrically and fixedly connected to a side wall of the vertical plate 6, the guide rail 10 penetrates through the first moving plate 16, the first moving plate 16 is connected with the guide rail 10 in a sliding mode, the first moving plate 16 is connected in the first groove 7 in a sliding mode, and the surface of the first moving plate 16 is connected with the welding gun 20 through the first supporting plate 11.

The second motor 8 is started to drive the first screw 9 to rotate, the first moving plate 16 is driven to move in the Z-axis direction by the rotation of the first screw 9 through the mutual matching between the guide rail 10 and the first moving plate 16, the welding gun 20 is driven to move in the Z-axis direction by the movement of the first moving plate 16, the position of the welding gun 20 is adjusted as required, the first motor 2 is started to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the rotating disc 4 to rotate, the angle of the workpiece 5 on the X-Y plane is adjusted, and therefore the multi-angle welding of the workpiece 5 is achieved.

Referring to fig. 1-2, a second groove 12 is formed in a side wall of a first support plate 11, guide rods 15 are symmetrically and fixedly connected in the second groove 12, a third motor 13 is fixedly connected to a surface of the first support plate 11, a second screw 14 is fixedly connected to an output end of the third motor 13, a second moving plate 17 is connected to an outer wall of the second screw 14 in a threaded manner, the guide rods 15 penetrate through the second moving plate 17, the second moving plate 17 is slidably connected with the guide rods 15, a fourth motor 18 is mounted on a surface of the second moving plate 17, an output end of the fourth motor 18 is fixedly connected with a connecting plate 19, and the connecting plate 19 is fixedly connected with a welding gun 20.

The third motor 13 is started to drive the second screw 14 to rotate, through the mutual matching between the second moving plate 17 and the guide rod 15, the second moving plate 17 is driven to move in the Y-axis direction by the rotation of the second screw 14, the fourth motor 18 is driven to move in the Y-axis direction by the movement of the second moving plate 17, the welding gun 20 is driven to move in the Y-axis direction by the movement of the fourth motor 18 under the action of the connecting plate 19, the connecting plate 19 can be driven to rotate by the starting of the fourth motor 18, and the welding gun 20 is driven to rotate by the rotation of the connecting plate 19, so that the angle of the welding gun 20 on the Y-Z plane is adjusted, and the weldable angle of the workpiece 5 is increased.

Referring to fig. 1-2, a second supporting plate 21 is fixedly connected to the upper surface of the rotating disk 4, a third groove 22 is formed on the surface of the second supporting plate 21, a fifth motor 23 is fixedly connected to the side wall of the second supporting plate 21, a third screw 24 is fixedly connected to the output end of the fifth motor 23, a third moving plate 26 is threadedly connected to the outer wall of the third screw 24, the third moving plate 26 is slidably connected to the third groove 22, in order to reduce the deflection phenomenon of the third moving plate 26 during the moving process, sliding grooves 25 are symmetrically formed on the surface of the second supporting plate 21, the second supporting plate 21 penetrates through the third moving plate 26, the third moving plate 26 is slidably connected to the sliding grooves 25, a third supporting plate 27 is fixedly connected to the upper end of the third moving plate 26, a first cylinder 28 and a second cylinder 29 are mounted on the surface of the third supporting plate 27, a fourth supporting plate 30 is hinged to the output end of the first cylinder 28, the output end of the second cylinder 29 is hinged with a fourth supporting plate 30, and the workpiece 5 is positioned on the surface of the fourth supporting plate 30.

The fifth motor 23 is started to drive the third screw 24 to rotate, and through the mutual matching between the third moving plate 26 and the sliding groove 25, the third screw 24 rotates to drive the third moving plate 26 to move in the X-axis direction, the third moving plate 26 moves to drive the fourth supporting plate 30 to move in the X-axis direction, the fourth supporting plate 30 moves to drive the fourth supporting plate 30 to move, and further, the workpiece 5 is driven to move in the X-axis direction, so that the welding of the upper surface of the workpiece 5 is realized; activation of the first cylinder 28 causes the fourth support plate 30 to rotate about the center of the second cylinder 29 and vice versa, thereby adjusting the angle of the workpiece 5 in the Y-Z plane.

Referring to fig. 3, a second clamp 32 is disposed on one side of the workpiece 5, a fourth clamp 34 is disposed on the other side of the workpiece 5, a first clamp 31 is disposed at one end of the workpiece 5 close to the vertical plate 6, a third clamp 33 is disposed at the other end of the workpiece 5, bottoms of the first clamp 31, the second clamp 32, the third clamp 33 and the fourth clamp 34 are fixedly connected to the fourth support plate 30, and the first clamp 31, the second clamp 32, the third clamp 33 and the fourth clamp 34 are mutually matched to clamp the special-shaped workpiece 5, so that the application range of the device is widened.

Referring to fig. 3-4, the first clamp 31 includes a first base 311 installed on a surface of a fourth support plate 30, an upper end of the first base 311 is connected with a first adjustment plate 312 through a bolt, a plurality of threaded holes are formed on the surface of the first base 311, a distance between the first adjustment plate 312 and a workpiece 5 can be adjusted according to a thickness of the workpiece 5, one end of the first adjustment plate 312, which is far away from the first base 311, is fixedly connected with a first positioning column 313, the fourth clamp 34 includes a fourth base 341 installed on the surface of the fourth support plate 30, an upper end of the fourth base 341 is connected with a second movable plate 342 through a pin shaft, the second movable plate 342 can rotate around the pin shaft through a design of the second movable plate 342, so as to adjust an angle of the second movable plate 342 as required, one end of the second movable plate 342 is connected with a second positioning column 344 through the fourth adjustment plate 343, a plurality of threaded holes are formed on a surface of the second movable plate 342, the distance between the second positioning column 344 and the workpiece 5 can be finely adjusted, the first positioning column 313 and the second positioning column 344 penetrate through the workpiece 5, the second positioning column 344 penetrates through the bottom of the workpiece 5, the first positioning column 313 penetrates through the upper end of the workpiece 5, and the workpiece 5 is quickly positioned.

Referring to fig. 3-5, the second fixture 32 includes a second base 321 installed on the surface of the fourth supporting plate 30, a first movable plate 322 is movably connected to one side of the second base 321 by a pin, a first clamping plate 323 is fixedly connected to one end of the first movable plate 322 close to the second base 321, a second clamping plate 325 is connected to the other side of the second base 321 by a second adjusting plate 324, a plurality of threaded holes are respectively formed on the sidewalls of the second adjusting plate 324 and the second base 321, the distance between the second adjusting plate 324 and the workpiece 5 can be adjusted, the workpiece 5 can be clamped between the first clamping plate 323 and the second clamping plate 325 by designing the first clamping plate 323 and the second clamping plate 325, the third fixture 33 includes a third base 331 installed on the surface of the fourth supporting plate 30, a third clamping plate 333 is disposed on one side of the third base 331, a third adjusting plate 332 is disposed on the other side of the third base 331, the workpiece 5 can be clamped between the third clamping plate 333 and the third adjustment plate 332.

Referring to fig. 1-5, the method for using the multi-angle welding device without dead angle includes the following steps:

s1: fixation of the workpiece 5: penetrating a second positioning column 344 through the bottom of the workpiece 5, penetrating a first positioning column 313 through the upper end of the workpiece 5, positioning the workpiece 5, and clamping the workpiece 5 by using a second clamp 32 and a third clamp 33;

s2: position adjustment of the welding gun 20: starting a second motor 8 to drive a first screw rod 9 to rotate, adjusting the position of a welding gun 20 in the Z-axis direction, starting a third motor 13 to drive a second screw rod 14 to rotate, and adjusting the position of the welding gun 20 in the Y-axis direction;

s3: position adjustment of the workpiece 5: starting a fifth motor 23 to drive a third screw 24 to rotate, and adjusting the position of the workpiece 5 in the X-axis direction;

s4: angle adjustment of the workpiece 5: the first motor 2 is started to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the rotating disc 4 to rotate, the angle of the workpiece 5 on the X-Y plane is adjusted, the first air cylinder 28 is started to push the fourth supporting plate 30 to turn over, and the angle of the workpiece 5 on the Y-Z plane is adjusted.

The working principle is as follows:

the second motor 8 is started to drive the first screw 9 to rotate, the rotation of the first screw 9 drives the first moving plate 16 to move in the Z-axis direction, the movement of the first moving plate 16 drives the welding gun 20 to move in the Z-axis direction, the third motor 13 is started to drive the second screw 14 to rotate, the rotation of the second screw 14 drives the second moving plate 17 to move in the Y-axis direction, so that the welding gun 20 moves in the Y-axis direction, the fourth motor 18 is started to drive the connecting plate 19 to rotate, the rotation of the connecting plate 19 drives the welding gun 20 to rotate, so that the angle of the welding gun 20 in the Y-Z plane is adjusted, the first motor 2 is started to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the rotating disc 4 to rotate, so that the angle of the workpiece 5 in the X-Y plane is adjusted, the first air cylinder 28 is started to drive the fourth supporting plate 30 to rotate around the center of the second air cylinder 29, and vice versa, to adjust the angle of the workpiece 5 in the Y-Z plane.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.