Welding gun and column welding device

Abstract

The invention discloses a welding gun and a column welding device, comprising: an angle adjustment mechanism and a welding gun head; the angle adjustment mechanism comprises a mounting seat and a servo motor, the mounting seat has a bottom wall and two opposite side plates arranged on the bottom wall, the servo motor is clamped with the bottom wall, a first welding wire tube is passed through the two side plates, the first welding wire tube is coaxially connected with the welding gun head, and the servo motor can drive the bottom wall to rotate to adjust the angle of the mounting seat; a mounting plate is provided on a side of the servo motor facing the bottom wall, an adjusting knob is provided on the mounting plate, the adjusting knob is fixedly connected with the side plate, and the adjusting knob can fine-tune the rotation angle of the mounting seat. The welding gun adjusts the angle of the welding gun head into place through the servo motor, and then fine-tunes the welding gun head through the adjusting knob, so that the accuracy of the welding gun is higher and the welding quality is higher.

Description

Technical Field

[0001] The invention relates to the technical field of stacker column welding equipment, and in particular to a welding gun and a column welding device. Background Art

[0002] In recent years, with the acceleration of the construction of domestic intensive warehouses and modern logistics distribution centers, logistics automation transportation technology has also been continuously promoted, and the demand for supporting stacker equipment has continued to increase. In the processing of stackers, the stacker columns are particularly important and are the key to determining the quality of the project. It is widely used in the processing of automated warehouse stackers;

[0003] The columns of the stacker are mainly welded by submerged arc welding. The existing submerged arc welding structure has a low degree of automation, cannot be accurately debugged, and has low accuracy, which affects the welding quality. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention aims to provide a welding gun and a column welding device.

[0005] The specific technical solutions are as follows:

[0006] A welding gun, mainly comprising: an angle adjustment mechanism and a welding gun head;

[0007] The angle adjustment mechanism comprises a mounting seat and a servo motor, wherein the mounting seat has a bottom wall and two side plates arranged on the bottom wall and facing each other, the servo motor is clamped with the bottom wall, a first welding wire tube is passed through the two side plates, the first welding wire tube is coaxially connected with the welding gun head, and the servo motor can drive the bottom wall to rotate to adjust the angle of the mounting seat;

[0008] A mounting plate is provided on a movable sleeve on one side of the servo motor facing the bottom wall, and an adjusting knob is provided on the mounting plate. The adjusting knob is fixedly connected to the side plate, and the adjusting knob can fine-tune the rotation angle of the mounting seat.

[0009] The above-mentioned welding gun also has the following characteristics: a mounting hole is provided on the bottom wall, the output shaft of the servo motor is provided in the mounting hole, the bottom wall can rotate relative to the output shaft, a locking hole is provided on the side of the bottom wall, the locking hole points to the output shaft, a locking piece is provided in the locking hole, and the locking piece is used to fix the bottom wall and the servo motor.

[0010] The above-mentioned welding gun also has the following characteristics: the two side panels are respectively a first side panel and a second side panel, the adjusting knob is connected to the first side panel, and an adjusting assembly is arranged on the second side panel, the adjusting assembly includes an adjusting piece, a fixing structure, a locking structure and an elastic piece, the adjusting piece extends from the outer side of the second side panel to the fixing structure arranged on the inner side of the second side panel, the elastic piece is sleeved on the adjusting piece and clamped on the inner side of the fixing structure, the locking structure is sleeved on the end portion of the adjusting piece extending out of the fixing structure, and the position where the adjusting knob is connected to the first side panel and the position where the adjusting assembly is connected to the second side panel are respectively located at two relative grid angles of the bottom wall.

[0011] The above-mentioned welding gun also has such a feature that the adjustment knob has a handheld end, the handheld end is provided with a dial, the dial is coaxially arranged with the handheld end, and the outer periphery of the dial is provided with scales.

[0012] The above-mentioned welding gun also has the following characteristics: the first welding wire tube includes two sections, which are divided into a first section and a second section. The first section is installed on the first side plate, and the second section is installed on the second side plate. The axes of the first section and the second section are collinear. A guide gear is provided on the bottom wall. The output shaft is connected to a guide wheel extending out of the bottom wall. The guide wheel is opposite to the guide gear and is provided on opposite sides of the first welding wire tube. A guide groove is provided on the guide wheel. The second section extends out of the second side plate and is connected to the welding gun head shaft.

[0013] The above-mentioned welding gun also has such a feature that the welding gun head has a second welding wire tube, and a sand leakage tube connected to the inside of the second welding wire tube is arranged outside the head of the second welding wire tube.

[0014] The above-mentioned welding gun also has the following characteristics: a weld tracker is provided on the outer side of the second welding wire tube, and a sand absorber is provided on the outer side of the second welding wire tube.

[0015] The above-mentioned welding gun also has the feature that a sensor is also arranged on the outer side of the second welding wire tube.

[0016] A column welding device mainly comprises: a welding platform, a gantry, a track, a translation mechanism and the welding gun mentioned above;

[0017] The two tracks are extended in a first direction. The gantry is slidably connected to the tracks and can translate along the tracks. One end of the translation mechanism is slidably connected to the gantry, and the welding gun is arranged at the other end. The translation mechanism can translate along a second direction and a third direction on the gantry to realize the translation of the welding gun. The welding platform is arranged between the two tracks, wherein the first direction, the second direction and the third direction are three directions of the spatial coordinate system.

[0018] The above-mentioned column welding device also has the following characteristics: a welding wire conveying structure is arranged on the gantry, and the welding wire conveying structure includes a wire supply barrel arranged on the gantry and a transition block arranged on the translation mechanism; a flux recovery barrel is also arranged on the translation mechanism, and a welding wire channel and a flux recovery channel are arranged on the transition block; the flux recovery barrel is opposite to the flux recovery channel, and the welding gun is rotatably arranged at the end of the translation mechanism.

[0019] The positive effects of the above technical solution are:

[0020] The present invention provides a welding gun and a column welding device, which adjusts the angle of the welding gun head into place by a servo motor, and then fine-tunes the welding gun head by adjusting a knob, thereby achieving higher accuracy of the welding gun and higher welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the first direction structure of the welding gun provided by the present invention;

[0022] Figure 2 A schematic diagram of the second direction structure of the welding gun provided by the present invention;

[0023] Figure 3 A schematic diagram of the third direction structure of the welding gun provided by the present invention;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of the column welding device provided by the present invention;

[0025] Figure 5 for Figure 4 A schematic diagram of the partial structure of the column welding device;

[0026] Figure 6 A front structural schematic diagram of a column welding device provided by the present invention;

[0027] Figure 7 A schematic diagram of the partial structure of the column welding device provided by the present invention;

[0028] Figure 8 Another partial structural schematic diagram of the column welding device provided by the present invention.

[0029] In the accompanying drawings: 1. Angle adjustment mechanism; 11. Mounting seat; 111. Bottom wall; 1111. Mounting hole; 1112. Locking hole; 112. Side plate; 1121. First side plate; 1122. Second side plate; 12. Servo motor; 13. Mounting plate; 131. Mounting block; 14. Adjustment knob; 141. Handheld end; 142. L-shaped first radial plate; 15. Locking member; 16. Adjustment assembly; 161. Adjustment member; 162. Fixing structure; 163. Locking structure; 164. Elastic member; 17. Guide gear; 18. Guide wheel; 181. Guide groove; 2. Welding gun head; 21. Second welding wire tube; 22. Sand leakage tube; 23 , weld tracker; 24, sand absorber; 25, fixed ring; 26, movable plate; 27, first radial plate; 28, sensor; 281, second radial plate; 29, mounting block; 31, first section; 32, second section; 4, welding platform; 41, clamping structure; 5, gantry; 51, truss; 52, horizontal slide rail; 53, first rack; 6, track; 7, translation mechanism; 71, seat plate; 72, horizontal motor; 73, vertical slide rail; 74, vertical motor; 75, second gear; 76, second rack; 8, welding wire conveying structure; 81, wire supply barrel; 82, transition block; 9, flux recovery barrel; 10, welding gun; 20, column. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] See also Figures 1 to 8 , the present invention discloses a welding gun 10, the welding gun 10 comprises: an angle adjustment mechanism 1 and a welding gun head 2;

[0034] Specifically, the angle adjustment mechanism 1 includes a mounting seat 11 and a servo motor 12. The mounting seat 11 has a bottom wall 111 and two opposite side plates 112 arranged on the bottom wall 111. The servo motor 12 is clamped with the bottom wall 111. The two side plates 112 are provided with a first welding wire tube, which is coaxially connected to the welding gun head 2. The servo motor 12 can drive the bottom wall 111 to rotate to adjust the angle of the mounting seat 11. Specifically, the two side plates 112 are installed at opposite ends of the bottom wall 111.

[0035] A mounting plate 13 is movably mounted on one side of the servo motor 12 facing the bottom wall 111 . An adjusting knob 14 is disposed on the mounting plate 13 . The adjusting knob 14 is fixedly connected to the side plate 112 . The adjusting knob 14 can fine-tune the rotation angle of the mounting seat 11 .

[0036] Specifically, a mounting hole 1111 is provided on the bottom wall 111, and the output shaft of the servo motor 12 is provided in the mounting hole 1111. The bottom wall 111 can rotate relative to the output shaft. A locking hole 1112 is provided on the side of the bottom wall 111, and the locking hole 1112 points to the output shaft. A locking member 15 is provided in the locking hole 1112, and the locking member 15 is used to fix the bottom wall 111 and the servo motor 12. The servo motor 12 is used to make a preliminary adjustment and positioning of the angle of the mounting seat 11. When fine-tuning is required, the locking member 15 is first loosened, and then the adjustment knob 14 is adjusted to fine-tune the angle of the mounting seat 11. After the fine-tuning is completed, the mounting seat 11 and the servo motor 12 are fixed by the locking member 15 to prevent them from moving, so that they can be welded smoothly. Optionally, the locking member 15 is a screw.

[0037] Optionally, the two side panels 112 are respectively a first side panel 1121 and a second side panel 1122, the adjusting knob 14 is connected to the first side panel 1121, a mounting block 131 is provided on the mounting plate 13, the adjusting knob 14 is passed through the mounting block 131, one end extends out as a hand-held end 141, and the other end is a connecting end, and the connecting end is fixedly connected to the mounting base 11 through an L-shaped plate 142. Furthermore, the hand-held end 141 is provided with a dial (not shown), the dial is coaxially arranged with the hand-held end 141, and the periphery of the dial is provided with scales. The setting of the dial can more intuitively guide the operator to fine-tune.

[0038] Further, the second side plate 1122 is provided with an adjustment assembly 16, which includes an adjustment member 161, a fixing structure 162, a locking structure 163 and an elastic member 164. The adjustment member 161 extends from the outer side of the second side plate 1122 to the fixing structure 162 provided on the inner side of the second side plate 1122, the elastic member 164 is sleeved on the adjustment member 161 and clamped at both ends of the fixing structure 162, and the locking structure 163 is sleeved on the end of the adjustment member 161 extending from the fixing structure 162. Optionally, the adjustment member 161 is a screw. The fixing structure 162 is a groove-shaped structure, and the elastic member 164 is accommodated inside the groove-shaped structure, with one end abutting against the bottom of the groove-shaped structure. A U-shaped structure is arranged inside the groove-shaped structure, and the U-shaped structure is inverted on the bottom of the groove of the groove-shaped structure. The other end of the elastic member 164 abuts against the bottom of the U-shaped structure, and the adjusting member 161 passes through the bottom of the U-shaped structure. The locking structure 163 is sleeved on one end of the adjusting member 161 extending out of the U-shaped structure, and is used to lock the adjusting member 161. Optionally, the locking structure 163 is a nut.

[0039] In this embodiment, the position where the adjustment knob 14 is connected to the first side plate 1121, and the adjustment assembly 16 and the second side plate 1122 are respectively located at two relative angles of the bottom wall 111. The purpose of this arrangement is to form a torque force on the circumference of the bottom wall 111, so that the mounting base 11 can rotate, thereby adjusting the angle of the mounting base 11.

[0040] Optionally, in this embodiment, the first welding wire tube includes two sections, namely a first section 31 and a second section 32. The first section 31 is installed on the first side plate 1121, and the second section 32 is installed on the second side plate 1122. The axes of the first section 31 and the second section 32 are collinear. A guide gear 17 is provided on the bottom wall 111. The output shaft is connected to a guide wheel 18 extending out of the bottom wall 111. The guide wheel 18 is opposite to the guide gear 17 and is provided on two opposite sides of the first welding wire tube. A guide groove 181 is provided on the guide wheel 18. The second section 32 extends out of the second side plate 1122 and is connected to the axis of the welding gun head 2. Therefore, the angle of the welding gun head 2 can be adjusted by adjusting the angle of the mounting seat 11.

[0041] The welding gun head 2 has a second welding wire tube 21, and a sand leakage tube 22 connected to the second welding wire tube 21 is arranged outside the head of the second welding wire tube 21. Optionally, in this embodiment, the sand leakage tube 22 intersects and communicates with the axis of the second welding wire tube 21. The welding wire comes out of the second welding wire tube 21 for welding, and the flux sand continuously leaks out of the sand leakage tube 22 for submerged arc welding.

[0042] A weld tracker 23 is also provided on the outside of the second welding wire tube 21, and a sand absorber 24 is also provided on the outside of the second welding wire tube 21. Specifically, in the present embodiment, a fixed ring 25 is sleeved on the outside of the second welding wire tube 21, and the fixed ring 25 is hinged with a movable plate 26. The weld tracker 23 is provided at the end of the movable plate 26, and the weld tracker 23 points to the weld. Optionally, the weld tracker 23 can be a camera, using visual technology, which is not described in detail here. Optionally, the sand absorber 24 is fixed to the outside of the second welding wire tube 21 through a radially extending first radial plate 27, and the sand absorber 24 is connected to an external sand absorption structure through a pipeline, and then sand is absorbed. The external sand absorption structure can adopt the existing technology, which is not described in detail here. The setting of the sand absorber 24 can realize sand absorption while welding. Compared with the existing technology, the operation process is reduced, so that the welding effect is better.

[0043] Furthermore, a sensor 28 is also provided on the outer side of the second welding wire tube 21. The sensor 28 is provided on a second radial plate 281 extending radially.

[0044] Optionally, in this embodiment, the height of the fixing ring 25 is the highest, and a mounting block 29 is further provided below the fixing ring 25. The mounting block 29 is sleeved on the outside of the second welding wire tube 21, the first radial plate 27 is provided at one end of the mounting block 29, and the second radial plate 281 is provided at the other end of the mounting block 29. Optionally, the weld tracker 23, the sand absorber 24 and the sensor 28 are distributed on the radial surface.

[0045] A welding gun 10 provided by the present invention adjusts the angle of the welding gun head 2 to the desired position through a servo motor 12, and then fine-tunes the welding gun head 2 through an adjustment knob 14, thereby achieving higher accuracy of the welding gun 10 and improving welding quality.

[0046] like Figures 1 to 8 As shown, the present invention also discloses a column welding device, which includes a welding platform 4, a gantry 5, a track 6, a translation mechanism 7 and a welding gun 10 in front;

[0047] The rails 6 include two rails 6 extending in a first direction. The gantry 5 is slidably connected to the rails 6 and can translate along the rails 6. Optionally, in this embodiment, the gantry 5 is driven by a motor and translates along the rails 6. Preferably, the gantry 5 is driven by a variable frequency motor to achieve precise speed and distance control during welding.

[0048] One end of the translation mechanism 7 is slidably connected to the gantry 5, and the other end is provided with a welding gun 10. The translation mechanism 7 can translate along the second direction and the third direction on the gantry 5 to achieve translation of the welding gun 10. The welding platform 4 is arranged between the two tracks 6, wherein the first direction, the second direction and the third direction are three directions of the space coordinate system. For example, in this embodiment, the first direction and the second direction are horizontal directions, the first direction is a direction along the length direction of the column 20, the second direction is a direction along the width direction of the column 20, and the third direction is a vertical direction.

[0049] Specifically, the welding platform 4 is used to place the parts to be welded, such as the column 20, the length direction of the column 20 is the same as the extension direction of the track 6. Optionally, a plurality of clamping structures 41 are arrayed on the welding platform 4, and the clamping structures 41 clamp the column 20 from the width direction of the column 20 respectively.

[0050] The gantry 5 has a truss 51, and the truss 51 has a transverse slide rail 52 arranged along the second direction. One end of the translation mechanism 7 is slidably connected to the transverse slide rail 52 and can move horizontally along the transverse slide rail 52. The translation mechanism 7 has a seat plate 71, and the seat plate 71 is slidably connected to the transverse slide rail 52. A transverse motor 72 is arranged on the seat plate 71. The output end of the transverse motor 72 drives the seat plate 71 to move horizontally through the cooperation of a first gear (not shown) and a first rack 53, wherein the first gear is installed at the output end of the transverse motor 72, and the first rack 53 is installed on the truss 51. A vertical slide rail 73 extending along the third direction is also arranged on the side of the seat plate 71 away from the transverse slide rail 52. The vertical slide rail 73 is slidably connected to the seat plate 71, and a vertical motor 74 is arranged on the vertical slide rail 73. The output end of the vertical motor 74 drives the vertical slide rail 73 to move vertically through the cooperation of a second gear 75 and a second rack 76. The end of the vertical slide rail 73 ( Figure 7 The welding gun 10 is arranged at the end of the vertical slide rail 73 (in the figure), and optionally, in the present embodiment, the welding gun 10 can be rotatably arranged at the end of the vertical slide rail 73. Of course, in other embodiments, the welding gun 10 is fixedly arranged at the end of the vertical slide rail 73. Specifically, the servo motor 12 of the welding gun 10 is connected to the vertical slide rail 73. The translation mechanism 7 is used to realize the horizontal movement and vertical movement of the welding gun 10 along the width direction of the column 20.

[0051] Preferably, in this embodiment, both long sides of the column 20 include two long welds, and both long welds need to be welded. Preferably, two welding guns 10 are provided, which can simultaneously realize the synchronous welding of the two welds on one long side of the column 20. Preferably, in other embodiments, four welding guns 10 can also be provided, which can realize the synchronous welding of a total of four welds on the two long sides of the column 20.

[0052] Furthermore, a welding wire conveying structure 8 is provided on the gantry 5, and the welding wire conveying structure 8 includes a wire supply barrel 81 provided on the gantry 5 and a transition block 82 provided on the translation mechanism 7. A flux recovery barrel 9 is also provided on the translation mechanism 7. A welding wire channel and a flux recovery channel are provided on the transition block 82. The flux recovery barrel 9 is directly opposite to the flux recovery channel. The welding gun 10 is rotatably provided at the end of the translation mechanism 7. The welding wire comes out of the wire supply barrel 81 and enters the welding wire channel in the transition block 82, and then enters the second welding wire tube 21 of the welding gun 10 until it comes out of the second welding wire tube 21 and is aligned with the weld for welding. The flux recovery barrel 9 is connected to the flux recovery channel in the transition block 82 through a pipeline, and the flux recovery channel is connected to the sand absorber 24 through a pipeline to absorb sand (i.e., flux recovery).

[0053] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A welding gun, characterized in that: include: Angle adjustment mechanism and welding gun head; The angle adjustment mechanism comprises a mounting seat and a servo motor, wherein the mounting seat has a bottom wall and two side plates arranged on the bottom wall and facing each other, the servo motor is clamped with the bottom wall, a first welding wire tube is passed through the two side plates, the first welding wire tube is coaxially connected with the welding gun head, and the servo motor can drive the bottom wall to rotate to adjust the angle of the mounting seat; The bottom wall is provided with a mounting hole, the output shaft of the servo motor is arranged in the mounting hole, the bottom wall can rotate relative to the output shaft, the side of the bottom wall is provided with a locking hole, the locking hole points to the output shaft, a locking member is arranged in the locking hole, and the locking member is used to fix the bottom wall and the servo motor; A mounting plate is provided on a movable sleeve on one side of the servo motor facing the bottom wall, and an adjusting knob is provided on the mounting plate. The adjusting knob is fixedly connected to the side plate, and the adjusting knob can fine-tune the rotation angle of the mounting seat; The two side panels are respectively a first side panel and a second side panel, the adjusting knob is connected to the first side panel, the second side panel is provided with an adjusting assembly, the adjusting assembly comprises an adjusting piece, a fixing structure, a locking structure and an elastic piece, the adjusting piece extends from the outer side of the second side panel to the fixing structure provided on the inner side of the second side panel, the elastic piece is sleeved on the adjusting piece and clamped on the inner side of the fixing structure, the locking structure is sleeved on the end of the adjusting piece extending from the fixing structure, the position where the adjusting knob is connected to the first side panel and the position where the adjusting assembly is connected to the second side panel are respectively located at two relative grid angles of the bottom wall; The fixing structure is a groove structure, the elastic member is accommodated inside the groove structure, one end of the elastic member is against the bottom of the groove structure, a U-shaped structure is arranged inside the groove structure, the U-shaped structure is buckled on the groove bottom of the groove structure, the other end of the elastic member is against the bottom of the U-shaped structure, the adjusting member passes through the bottom of the U-shaped structure, and the locking structure is sleeved on one end of the adjusting member extending out of the U-shaped structure; The first welding wire tube includes two sections, which are divided into a first section and a second section. The first section is installed on the first side plate, and the second section is installed on the second side plate. The axes of the first section and the second section are collinear. A guide gear is provided on the bottom wall. The output shaft is connected to a guide wheel extending out of the bottom wall. The guide wheel is opposite to the guide gear and is provided on opposite sides of the first welding wire tube. A guide groove is provided on the guide wheel. The second section extends out of the second side plate and is connected to the welding gun head shaft.

2. The welding gun according to claim 1, characterized in that The adjusting knob has a handheld end, the handheld end is provided with a dial, the dial is coaxially arranged with the handheld end, and the outer periphery of the dial is provided with scales.

3. The welding gun according to any one of claims 1 to 2, characterized in that: The welding gun head has a second welding wire tube, and a sand leakage tube communicating with the second welding wire tube is arranged outside the head of the second welding wire tube.

4. The welding gun according to claim 3, characterized in that A weld tracker is also arranged on the outer side of the second welding wire pipe, and a sand absorber is also arranged on the outer side of the second welding wire pipe.

5. The welding gun according to claim 4, characterized in that A sensor is also arranged on the outer side of the second welding wire tube.

6. A column welding device, characterized in that: It comprises a welding platform, a gantry, a track, a translation mechanism and a welding gun as claimed in any one of claims 1 to 5; The two tracks are extended in a first direction. The gantry is slidably connected to the tracks and can translate along the tracks. One end of the translation mechanism is slidably connected to the gantry, and the welding gun is arranged at the other end. The translation mechanism can translate along a second direction and a third direction on the gantry to realize the translation of the welding gun. The welding platform is arranged between the two tracks, wherein the first direction, the second direction and the third direction are three directions of the spatial coordinate system.

7. The column welding device according to claim 6, characterized in that: The gantry is provided with a welding wire conveying structure, which includes a wire supply barrel arranged on the gantry and a transition block arranged on the translation mechanism. The translation mechanism is also provided with a flux recovery barrel, and the transition block is provided with a welding wire channel and a flux recovery channel. The flux recovery barrel is opposite to the flux recovery channel, and the welding gun is rotatably arranged at the end of the translation mechanism.

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