Metal shell welding tool

Abstract

The present invention belongs to the field of welding, and specifically is a metal shell welding tool, comprising a work table, a guide groove is provided at the top of the work table, and the shapes of the front and rear ends of the guide groove are respectively rectangular and arc-shaped; a moving block is slidably connected inside the guide groove, and the top of the moving block is slidably connected to a mounting plate, and the top of the mounting plate is fixedly connected to a welding gun bracket, and a first moving mechanism and a second moving mechanism are arranged inside the work table, and the first moving mechanism and the second moving mechanism are respectively used for welding circular and rectangular metal shells; through the structural design of the first moving mechanism, the mounting plate is manually pushed to allow the moving block to slide in the arc-shaped part inside the guide groove, and the welding gun fixed on the welding gun bracket can automatically move along the arc curve, thereby automatically welding the circular metal shell fixed on the moving plate, making the welding process more convenient.

Description

Technical Field

[0001] The invention relates to the field of welding, in particular to a metal shell welding tool. Background Art

[0002] The metal shell is made of multiple metal plates spliced ​​together and fixed by welding. During the welding process, in order to improve the welding efficiency, support frames, pressure plates, positioning pins and other components are used to support the metal plates. These components are combined together to form a complete welding tooling.

[0003] According to a welding jig and welding device proposed in patent document CN201910551266.8, the welding cost of the sealed housing can be reduced. The welding device of the present invention includes a welding jig and a welding machine, the welding jig is used to clamp the metal shell and position the auxiliary components on the metal shell, and the welding machine is used to weld the auxiliary components to the metal shell. The welding jig of the present invention includes a base and a first auxiliary mechanism. During actual operation, the metal shell is clamped in the cavity of the base, and the first auxiliary mechanism cooperates with the metal shell to limit the welding position of the auxiliary component on the metal shell, and preferably also includes a second auxiliary mechanism, which can limit the auxiliary component so that the auxiliary component does not move up and down. In this way, not only the welding position of the auxiliary component is highly accurate, but also the processing cost is low.

[0004] However, the welding tool in the above technology requires workers to hold welding guns or other welding equipment to weld the metal plates after the metal plates to be welded are fixed. For the welding of circular metal shells, since the welding trajectory is a closed curve, after welding to a certain angle, workers need to readjust their positions to facilitate continued welding. For larger metal shells, workers may frequently adjust their positions to find a suitable welding position, resulting in poor continuity during welding and low welding efficiency. Therefore, a metal shell welding tool is proposed to address the above problems. Summary of the invention

[0005] In order to solve the problem of welding tooling in the above technology, after the metal plate to be welded is fixed, the worker needs to hold a welding gun or other welding equipment to weld the metal plate. For the welding of a circular metal shell, since the welding trajectory is a closed curve, after welding to a certain angle, the worker needs to readjust his position to facilitate continued welding. For a larger metal shell, the worker may frequently adjust his position to find a suitable welding position, resulting in poor continuity during welding and low welding efficiency. The present invention proposes a metal shell welding tool.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a metal shell welding tool described in the present invention includes a work table, a guide groove is provided at the top of the work table, and the shapes of the front and rear ends of the guide groove are respectively rectangular and arc-shaped; a moving block is slidably connected inside the guide groove, and the top of the moving block is slidably connected to the mounting plate, and the top of the mounting plate is fixedly connected to the welding gun bracket, and a first moving mechanism and a second moving mechanism are arranged inside the work table, and the first moving mechanism and the second moving mechanism are respectively used for welding circular and rectangular metal shells, and the rear end of the moving block abuts against the pushing block, and the bottom end of the pushing block is provided with a fixing mechanism, and the fixing mechanism is used to fix the rotating ring.

[0007] Preferably, the first moving mechanism includes a moving plate, which is slidably connected to the rotating plate, the bottom end of the rotating plate is fixedly connected to the connecting gear, the connecting gear is meshed with the second gear, the second gear is meshed with the inner wall of the rotating ring, the bottom ends of the connecting gear and the second gear are both rotatably connected to the bottom plate, the bottom plate is fixedly connected to the inner wall of the work table, the rotating ring is rotatably connected to the support ring, the bottom end of the rotating ring does not contact the bottom plate, the bottom end of the support ring is fixedly connected to the bottom plate, the top of the rotating ring is fixedly connected with a connecting column, the connecting column is close to the arc groove, the size of the arc groove is matched with the connecting column, the arc groove is opened at the rear end of the moving block, the top of the moving block is opened with a trapezoidal groove, the inside of the trapezoidal groove is slidably connected with a trapezoidal block, and the trapezoidal block is fixedly connected to the bottom end of the mounting plate.

[0008] Preferably, the second moving mechanism includes two groups of fixed frames, the top of the fixed frames are respectively abutted against one side of the moving plate, the bottom end of the fixed frame is fixedly connected to the second rack, the second rack is meshed with the first gear, the first gear is rotatably connected to the bottom end of the base plate, the side of the first gear away from the second rack is meshed with the first rack, the first rack and the second rack are both slidably connected to the support plate, the support plate is fixedly connected to the bottom end of the base plate, the side of the first rack away from the first gear is fixedly connected to the connecting block, the top of the connecting block is fixedly connected with two groups of clamping columns, the clamping columns are inserted into the inside of the clamping slot, and the clamping slot is opened at the front end of the moving block.

[0009] Preferably, the fixing mechanism includes a pushing block, which is trapezoidal in design, and the rear end of the pushing block is fixedly connected with a second spring and a mounting rod, and the mounting rod is T-shaped in design, and the second spring is sleeved on the mounting rod, and the rear end of the second spring is fixedly connected to a rectangular plate, and the top end of the rectangular plate is fixedly connected to the inner wall of the work surface, and the bottom end of the pushing block is fixedly connected with an abutment rod, and the bottom end of the abutment rod is inserted into the inside of the fixing groove, and the fixing groove is opened on the inner wall of the rotating ring.

[0010] Preferably, a semicircular groove is provided at the front end of the moving block, and the semicircular groove is located between two groups of slots. The interior of the semicircular groove is engaged with the rear end of the push rod. The rear end of the push rod is semicircular in design, and the front end of the push rod is T-shaped in design. The front end of the push rod is inserted into the outside of the work table, and the push rod is fixedly connected with a clamping ring and a fixing ring, the clamping ring is fitted with the moving block, and the fixing ring is fixedly connected with a first spring, the first spring is sleeved on the push rod, and the front end of the first spring is fixedly connected to the inner wall of the work table.

[0011] Preferably, two groups of blocks are fixedly connected to the connecting block, and the two groups of blocks are respectively fitted with the top and bottom ends of the base plate. The connecting block is slidably connected to the inside of the through groove, and a long rod is fixedly connected to the inner wall of the through groove, and the long rod is inserted into the connecting block.

[0012] Preferably, a groove is provided in the middle of the bottom end of the movable plate, the groove is slidably connected to the convex plate, and the convex plate is fixedly connected to the inner wall of the rotating plate.

[0013] Preferably, magnets are fixedly connected to the middle parts of the front and rear sides of the movable plate, and the magnets are attracted to the inner wall of the rotating plate.

[0014] Preferably, a support rod is inserted into the fixing frame, one side of the support rod is fixedly connected to the inner wall of the work surface, and the support rod is designed in a T shape.

[0015] Preferably, the support plates are designed to be L-shaped, and a group of support plates slidably connected to the first rack are provided with movable grooves.

[0016] The present invention is beneficial in that:

[0017] 1. The present invention adopts the structural design of the first moving mechanism, manually pushes the mounting plate, and allows the moving block to slide in the arc-shaped part inside the guide groove, so that the welding gun fixed on the welding gun bracket can move along the curved surface of the circular metal shell, so as to facilitate welding of the circular metal shell fixed on the moving plate, making the welding process more convenient, and the workers do not need to frequently adjust their own positions, which solves the welding tooling in the prior art. After the metal plate to be welded is fixed, the workers need to hold the welding gun or other welding equipment to weld the metal plate. For the welding of the circular metal shell, since the welding trajectory is a closed curve, after welding to a certain angle, the workers need to readjust their own positions to facilitate the continuation of welding. For larger metal shells, the workers may frequently adjust their own positions to find a suitable welding position, resulting in poor continuity during welding and low welding efficiency.

[0018] 2. Through the structural design of the second moving mechanism of the present invention, when the moving block is in the rectangular part of the guide groove, it can push the moving block to slide along a straight line, thereby facilitating the welding of the rectangular metal shell, and when the moving block moves, the moving plate will also move in the opposite direction, so that the moving block only needs to move a short distance in the guide groove to complete the welding work on one side of the rectangular metal shell.

[0019] 3. Through the structural design of the fixing mechanism of the present invention, when the moving block moves in the rectangular part of the guide groove, the abutment rod can be inserted into the interior of the fixing groove, so that the rotating ring is fixed by the abutment between the bottom end of the abutment rod and the inner wall of the fixing groove, thereby preventing the rotating ring from rotating and ensuring that the moving plate will not rotate when the moving plate slides on the rotating plate, thereby ensuring the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the top of the bottom plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection structure of the movable plate of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the working table of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the bottom end of the bottom plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure of the moving block of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection structure of the mounting plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the connection structure of the connection block of the present invention;

[0029] Fig. 9 It is a schematic diagram of the connection structure of the first gear of the present invention.

[0030] In the figure: 1, work table; 20, guide groove; 21, welding gun bracket; 22, mounting plate; 23, trapezoidal block; 24, trapezoidal groove; 25, moving block; 26, arc groove; 27, clamping groove; 28, semicircular groove; 29, clamping column; 30, connecting block; 31, stopper; 32, first rack; 34, support plate; 35, first gear; 36, second rack; 37, fixed frame; 38, support rod; 40, moving plate; 41, Magnet; 42, groove; 43, convex plate; 44, rotating plate; 45, connecting gear; 46, second gear; 47, rotating ring; 48, connecting column; 49, supporting ring; 51, bottom plate; 52, through groove; 53, long rod; 54, snap ring; 55, fixing ring; 56, first spring; 57, pushing rod; 58, pushing block; 59, second spring; 60, rectangular plate; 61, mounting rod; 62, abutting rod; 63, fixing groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1 - Fig. 9 As shown, a metal shell welding tool comprises a work surface 1, a guide groove 20 is provided at the top of the work surface 1, and the shapes of the front and rear ends of the guide groove 20 are rectangular and arc-shaped respectively; a moving block 25 is slidably connected inside the guide groove 20, and the top of the moving block 25 is slidably connected to the mounting plate 22, and the top of the mounting plate 22 is fixedly connected to the welding gun bracket 21, and a first moving mechanism and a second moving mechanism are provided inside the work surface 1, and the first moving mechanism and the second moving mechanism are used for welding circular and rectangular metal shells respectively, and the rear end of the moving block 25 abuts against the pushing block 58, and the bottom end of the pushing block 58 is provided with a fixing mechanism, and the fixing mechanism is used to fix the rotating ring 47;

[0034] Further, the first moving mechanism includes a moving plate 40, which is slidably connected to a rotating plate 44, the bottom end of the rotating plate 44 is fixedly connected to a connecting gear 45, the connecting gear 45 is meshed with a second gear 46, the second gear 46 is meshed with an inner wall of a rotating ring 47, the bottom ends of the connecting gear 45 and the second gear 46 are both rotatably connected to a bottom plate 51, the bottom plate 51 is fixedly connected to the inner wall of the work table 1, the rotating ring 47 is rotatably connected to a supporting ring 49, the bottom end of the rotating ring 47 does not contact the bottom plate 51, the bottom end of the supporting ring 49 is fixedly connected to the bottom plate 51, the top end of the rotating ring 47 is fixedly connected to a connecting column 48, the connecting column 48 is close to the arc groove 26, the size of the arc groove 26 is matched with the connecting column 48, the arc groove 26 is provided at the rear end of the moving block 25, the top end of the moving block 25 is provided with a trapezoidal groove 24, the inside of the trapezoidal groove 24 is slidably connected to a trapezoidal block 23, and the trapezoidal block 23 is fixedly connected to the bottom end of the mounting plate 22;

[0035] Through the structural design of the first moving mechanism, the mounting plate 22 is manually pushed to allow the moving block 25 to slide in the arc-shaped part inside the guide groove 20, and the welding gun fixed on the welding gun bracket 21 can move along the curved surface of the circular metal shell, so as to facilitate welding of the circular metal shell fixed on the moving plate 40, making the welding process more convenient, and the workers do not need to frequently adjust their own positions. When working, the circular metal shell is first fixed on the moving plate 40, and then the welding gun is fixed on the welding gun bracket 21, and then the moving block 25 is pushed to fit the rear end of the inner wall of the guide groove 20 so that it is located in the arc-shaped part of the guide groove 20. At this time, when the welding gun bracket 21 is pushed to one side, the moving block 25 can slide along the arc-shaped part in the guide groove 20, and the welding gun fixed on the welding gun bracket 21 can weld the circular metal shell, making the welding process more convenient. When the moving block 25 is pushed to fit the rear end of the inner wall of the guide groove 20, the arc groove 26 opened on the moving block 25 will be engaged with the connecting column 48 on the rotating ring 47. The rotating ring 47 will rotate with the movement of the moving block 25, and the rotating ring 47 will transmit the rotation to the connecting gear 45 through the second gear 46, thereby driving the connecting gear 45 to rotate. The connecting gear 45 is connected to the bottom end of the rotating plate 44, so the rotating plate 44 will rotate in the opposite direction, so that the moving block 25 only needs to slide a short distance inside the guide groove 20 to weld a longer weld. At the same time, when the moving block 25 is pushed to the other side, the welding gun on the welding gun bracket 21 can weld the other side of the circular metal shell, wherein the bottom end of the mounting plate 22 is slidably connected to the moving block 25 through the trapezoidal block 23. When the moving block 25 is pushed, the moving block 25 can slide at the bottom end of the mounting plate 22, and the position of the mounting plate 22 can be kept fixed, so as to prevent the mounting plate 22 from moving with the moving block 25, so that the welding gun fixed on the welding gun bracket 21 is too close to the circular metal shell fixed on the moving plate 40, resulting in the need to readjust the position of the welding gun on the welding gun bracket 21.

[0036] Further, the second moving mechanism includes two groups of fixed frames 37, the top of the fixed frames 37 are respectively abutted against one side of the moving plate 40, the bottom end of the fixed frames 37 is fixedly connected to the second rack 36, the second rack 36 is meshed with the first gear 35, the first gear 35 is rotatably connected to the bottom end of the bottom plate 51, the side of the first gear 35 away from the second rack 36 is meshed with the first rack 32, the first rack 32 and the second rack 36 are both slidably connected to the support plate 34, the support plate 34 is fixedly connected to the bottom end of the bottom plate 51, the side of the first rack 32 away from the first gear 35 is fixedly connected to the connecting block 30, the top of the connecting block 30 is fixedly connected with two groups of clamping columns 29, the clamping columns 29 are inserted into the inside of the clamping slot 27, and the clamping slot 27 is opened at the front end of the moving block 25;

[0037] Through the structural design of the second moving mechanism, when the moving block 25 is in the rectangular part of the guide groove 20, the moving block 25 can be pushed to slide along a straight line, so as to facilitate the welding of the rectangular metal shell, and when the moving block 25 moves, the moving plate 40 will also move in the opposite direction, so that the moving block 25 only needs to move a short distance in the guide groove 20 to complete the welding work on one side of the rectangular metal shell. During operation, when it is necessary to weld the rectangular metal shell, first ensure that the moving block 25 is in contact with the front end of the inner wall of the guide groove 20. At this time, the moving block 25 can slide along the rectangular part of the guide groove 20, thereby driving the welding gun to move horizontally, so as to facilitate the welding of the rectangular metal shell. Two sets of card slots 27 are provided on the moving block 25, and the card slots 27 are internally provided with card slots. There is a clamping column 29. At this time, the arc groove 26 provided on the moving block 25 does not contact the connecting column 48. Therefore, the movement of the moving block 25 will not drive the rotating ring 47 to rotate. The bottom end of the clamping column 29 is connected to the first rack 32 through the connecting block 30. The first rack 32 and the second rack 36 are both engaged with the first gear 35. Therefore, when the first rack 32 moves to one side, the second rack 36 will move in the opposite direction. The top of the second rack 36 is connected to the fixing frame 37. The fixing frame 37 can push the moving plate 40 to slide on the rotating plate 44. When the moving block 25 is pushed to fit with the rear end of the inner wall of the guide groove 20, the clamping column 29 will be separated from the clamping groove 27, thereby ensuring that when the arc groove 26 on the moving block 25 is engaged with the connecting column 48, the sliding of the moving block 25 will not drive the clamping column 29 to move.

[0038] Further, the fixing mechanism includes a push block 58, which is designed in a trapezoidal shape. The rear end of the push block 58 is fixedly connected with a second spring 59 and a mounting rod 61. The mounting rod 61 is designed in a T-shape. The second spring 59 is sleeved on the mounting rod 61. The rear end of the second spring 59 is fixedly connected to a rectangular plate 60. The top end of the rectangular plate 60 is fixedly connected to the inner wall of the work surface 1. The bottom end of the push block 58 is fixedly connected with an abutment rod 62. The bottom end of the abutment rod 62 is inserted into the inside of a fixing groove 63. The fixing groove 63 is provided on the inner wall of the rotating ring 47.

[0039] Through the structural design of the fixing mechanism, when the moving block 25 moves in the rectangular part of the guide groove 20, the abutment rod 62 can be inserted into the fixed groove 63, so that the bottom end of the abutment rod 62 abuts against the inner wall of the fixed groove 63 to fix the rotating ring 47, thereby preventing the rotating ring 47 from rotating, ensuring that when the moving plate 40 slides on the rotating plate 44, the moving plate 40 will not rotate, thereby ensuring the quality of welding. When working, the rear end of the moving block 25 is abutted by the pushing block 58, so when the moving block 25 is not pushed to fit with the rear end of the inner wall of the guide groove 20, The pushing block 58 is always in contact with the front end of the inner wall of the guide groove 20. The pushing block 58 is designed in a trapezoidal shape as a whole. An abutment rod 62 is fixed to the bottom end of the pushing block 58. At this time, the abutment rod 62 will be clamped inside the fixing groove 63 to fix the rotating ring 47, ensuring that the rotating ring 47 will not rotate. Only when the pushing moving block 25 is in contact with the rear end of the inner wall of the guide groove 20, the moving block 25 will push the pushing block 58 to move. The second spring 59 fixed on the pushing block 58 is compressed, and the abutment rod 62 will be released from the fixing groove 63, so that the rotating ring 47 can rotate normally.

[0040] Further, a semicircular groove 28 is provided at the front end of the moving block 25, and the semicircular groove 28 is located between the two groups of slots 27. The interior of the semicircular groove 28 is engaged with the rear end of the push rod 57. The rear end of the push rod 57 is semicircular in design, and the front end of the push rod 57 is T-shaped in design. The front end of the push rod 57 is inserted on the outside of the work surface 1. The push rod 57 is fixedly connected with a snap ring 54 and a fixing ring 55. The snap ring 54 is fitted with the moving block 25. The fixing ring 55 is fixedly connected with a first spring 56. The first spring 56 is sleeved on the push rod 57, and the front end of the first spring 56 is fixedly connected with the inner wall of the work surface 1.

[0041] During operation, the rear end of the push rod 57 is clamped in the semicircular groove 28, which can fix the position of the moving block 25 on the guide groove 20. When the moving block 25 slides along the guide groove 20, the inner wall of the semicircular groove 28 will abut against the rear end of the push rod 57 until the rear end of the push rod 57 slides out of the semicircular groove 28, and the first spring 56 will be compressed. In this process, it is necessary to overcome a large resistance to push the moving block 25, so that the operator can accurately reset the moving block 25 by changing the resistance when pushing the moving block 25. The fixing ring 55 fixed on the push rod 57 is used to provide support and connection to the first spring 56, and the retaining ring 54 is in contact with the moving block 25. When it is necessary to push the moving block 25 to fit the rear end of the inner wall of the guide groove 20, it is only necessary to press the push rod 57 located on the outside of the work surface 1, and the rear end of the push rod 57 can push the moving block 25 to move.

[0042] Furthermore, two groups of stoppers 31 are fixedly connected to the connection block 30, and the two groups of stoppers 31 are respectively fitted with the top and bottom ends of the bottom plate 51. The connection block 30 is slidably connected to the inside of the through groove 52, and a long rod 53 is fixedly connected to the inner wall of the through groove 52, and the long rod 53 is inserted into the connection block 30;

[0043] During operation, two groups of stoppers 31 are fixed on the connecting block 30 , and the stoppers 31 are in contact with the bottom plate 51 , so as to provide support for the connecting block 30 and reduce the shaking of the connecting block 30 during movement, so that the connecting block 30 can move stably.

[0044] Furthermore, a groove 42 is provided in the middle of the bottom end of the movable plate 40, and the groove 42 is slidably connected to the convex plate 43, and the convex plate 43 is fixedly connected to the inner wall of the rotating plate 44;

[0045] During operation, the groove 42 is opened in the middle part of the bottom end of the movable plate 40. When the movable plate 40 slides on the rotating plate 44, the movement of the movable plate 40 can be guided by the groove 42 and the convex plate 43 to ensure that the movable plate 40 can move correctly in the horizontal direction. When the movable plate 40 and the rotating plate 44 are not rotated to their original positions, an angle will appear between the convex plate 43 and the central axis of the rotating plate 44, making it difficult for the fixed frame 37 to push the movable plate 40 to move, so as to reduce errors during operation.

[0046] Furthermore, magnets 41 are fixedly connected to the middle of both the front and rear sides of the movable plate 40, and the magnets 41 are attracted to the inner wall of the rotating plate 44;

[0047] During operation, magnets 41 are fixed to both the front and rear sides of the movable plate 40 , and the position of the movable plate 40 on the rotating plate 44 is fixed by the attraction between the magnets 41 and the inner wall of the rotating plate 44 .

[0048] Embodiment 2

[0049] See also Figure 2 and Fig. 9 As shown, in Comparative Example 1 as another embodiment of the present invention, a support rod 38 is inserted into the fixing frame 37, one side of the support rod 38 is fixedly connected to the inner wall of the work surface 1, and the support rod 38 is T-shaped;

[0050] During operation, the support rod 38 is designed in a T-shape to provide support for the fixing frame 37 so that the movement of the fixing frame 37 can be more stable and avoid large shaking.

[0051] The support plates 34 are L-shaped, and a group of support plates 34 slidably connected to the first rack 32 are provided with movable grooves;

[0052] When working, the support plate 34 is designed to be L-shaped as a whole to provide support for the bottom ends of the first rack 32 and the second rack 36, and a movable groove corresponding to the connecting block 30 is provided on the support plate 34 that is slidably connected to the first rack 32 to ensure the normal movement of the connecting block 30 and the first rack 32 on the group of support plates 34.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A metal shell welding tool, comprising a work surface (1), wherein a guide groove (20) is provided at the top of the work surface (1), and characterized in that: The shapes of the front and rear ends of the guide groove (20) are rectangular and arc-shaped, respectively; a moving block (25) is slidably connected inside the guide groove (20); the top end of the moving block (25) is slidably connected to the mounting plate (22); the top end of the mounting plate (22) is fixedly connected to the welding gun bracket (21); a first moving mechanism and a second moving mechanism are arranged inside the work table (1); the first moving mechanism and the second moving mechanism are respectively used for welding circular and rectangular metal shells; the rear end of the moving block (25) abuts against the pushing block (58); the bottom end of the pushing block (58) is provided with a fixing mechanism, and the fixing mechanism is used to fix the rotating ring (47); the first moving mechanism comprises a moving plate (40); the moving plate (40) is slidably connected to the rotating plate (44); the bottom end of the rotating plate (44) is fixedly connected to the connecting gear (45); the connecting gear (45) meshes with the second gear (46) The second gear (46) is meshed with the inner wall of the rotating ring (47); the bottom ends of the connecting gear (45) and the second gear (46) are both rotatably connected to the bottom plate (51); the bottom plate (51) is fixedly connected to the inner wall of the work table (1); the rotating ring (47) is rotatably connected to the support ring (49); the bottom end of the rotating ring (47) does not contact the bottom plate (51); the bottom end of the support ring (49) is fixedly connected to the bottom plate (51); The top end of the ring (47) is fixedly connected to a connecting column (48), the connecting column (48) is close to the arc groove (26), the size of the arc groove (26) is adapted to the connecting column (48), the arc groove (26) is opened at the rear end of the moving block (25), the top end of the moving block (25) is opened with a trapezoidal groove (24), the inside of the trapezoidal groove (24) is slidably connected to a trapezoidal block (23), and the trapezoidal block (23) is fixedly connected to the bottom end of the mounting plate (22).

2. A metal shell welding tool according to claim 1, characterized in that: The second moving mechanism comprises two sets of fixed frames (37), the top ends of the fixed frames (37) are respectively in contact with one side of the moving plate (40), the bottom ends of the fixed frames (37) are fixedly connected to the second rack (36), the second rack (36) is meshed with the first gear (35), the first gear (35) is rotatably connected to the bottom end of the bottom plate (51), the side of the first gear (35) away from the second rack (36) is meshed with the first rack (32), and the second rack (36) is meshed with the first gear (35). A rack (32) and a second rack (36) are both slidably connected to a support plate (34), the support plate (34) is fixedly connected to the bottom end of a bottom plate (51), the first rack (32) is fixedly connected to a connecting block (30) on a side away from the first gear (35), the top end of the connecting block (30) is fixedly connected with two groups of clamping columns (29), the clamping columns (29) are inserted into a clamping groove (27), and the clamping groove (27) is provided at the front end of the moving block (25).

3. The metal shell welding tool according to claim 1, characterized in that: The fixing mechanism comprises a second spring (59) and a mounting rod (61); the pushing block (58) is of trapezoidal design; the rear end of the pushing block (58) is fixedly connected to the second spring (59) and the mounting rod (61); the mounting rod (61) is of T-shaped design; the second spring (59) is sleeved on the mounting rod (61); the rear end of the second spring (59) is fixedly connected to a rectangular plate (60); the top end of the rectangular plate (60) is fixedly connected to the inner wall of the work surface (1); the bottom end of the pushing block (58) is fixedly connected to an abutting rod (62); the bottom end of the abutting rod (62) is inserted into a fixing groove (63); and the fixing groove (63) is provided on the inner wall of the rotating ring (47).

4. The metal shell welding tool according to claim 2, characterized in that: A semicircular groove (28) is provided at the front end of the moving block (25), and the semicircular groove (28) is located between the two groups of slots (27). The interior of the semicircular groove (28) is engaged with the rear end of a push rod (57). The rear end of the push rod (57) is semicircular in design, and the front end of the push rod (57) is T-shaped. The front end of the push rod (57) is inserted into the outer side of the work table (1). A snap ring (54) and a fixing ring (55) are fixedly connected to the push rod (57). The snap ring (54) is fitted with the moving block (25), and a first spring (56) is fixedly connected to the fixing ring (55). The first spring (56) is sleeved on the push rod (57), and the front end of the first spring (56) is fixedly connected to the inner wall of the work table (1).

5. The metal shell welding tool according to claim 2, characterized in that: Two groups of stoppers (31) are fixedly connected to the connecting block (30), and the two groups of stoppers (31) are respectively fitted with the top and bottom ends of the bottom plate (51). The connecting block (30) is slidably connected to the inside of a through slot (52), and the through slot (52) is provided on the bottom plate (51). A long rod (53) is fixedly connected to the inner wall of the through slot (52), and the long rod (53) is inserted into the connecting block (30).

6. The metal shell welding tool according to claim 1, characterized in that: A groove (42) is provided in the middle of the bottom end of the movable plate (40), and the groove (42) is slidably connected to a convex plate (43), and the convex plate (43) is fixedly connected to the inner wall of the rotating plate (44).

7. The metal shell welding tool according to claim 6, characterized in that: The middle parts of the front and rear sides of the movable plate (40) are fixedly connected with magnets (41), and the magnets (41) are attracted to the inner wall of the rotating plate (44).

8. The metal shell welding tool according to claim 2, characterized in that: A support rod (38) is inserted into the fixing frame (37), one side of the support rod (38) is fixedly connected to the inner wall of the work surface (1), and the support rod (38) is designed in a T shape.

9. The metal shell welding tool according to claim 2, characterized in that: The support plates (34) are designed to be L-shaped, and a group of support plates (34) slidably connected to the first rack (32) are provided with movable grooves.

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