Welding mechanism for metal structural part machining

Abstract

The utility model discloses a welding mechanism for processing a metal structural part, which comprises a box body, the top of the box body is fixedly connected with a shell, the front side of the shell is hinged with a sliding door, an electric welding gun is arranged in the shell, and a clamping block is arranged in the shell. The utility model relates to the technical field of metal structural part processing, and the welding mechanism for metal structural part processing realizes that the metal structural part is automatically turned over after one surface of the metal structural part is welded through the matching among the first motor, the connecting column, the stand column, the first belt pulley, the belt, the second belt pulley and the sleeve; the problems that when an existing welding mechanism is used for welding a metal structural part, after one face of the metal structural part is welded, workers need to take down the metal structural part and turn the metal structural part to the other welding face, the metal structural part needs to be fixed many times, time is wasted, and therefore the working efficiency of the existing welding mechanism is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal structure part processing, in particular to a welding mechanism for metal structure part processing. Background Art

[0002] Metal structure parts refer to components made of metal materials for support, load-bearing and connection. They usually have excellent mechanical properties and corrosion resistance, and can withstand large loads and stresses. When processing metal structure parts, a welding mechanism is required to weld the metal structure parts.

[0003] For example, the metal structure part welding device for automobile parts processing with the authorization announcement number CN216065934U includes an operating table. A support frame and a mold are fixed on the outer wall of the top of the operating table, and a top plate is fixedly installed at the top end of the support frame. Although the above document can reduce the width of the weld heating action zone, avoid material oxidation, and in this device, there is no need for personnel to hold the trachea of the shielding gas, which is convenient to use, reduces the workload of personnel, and improves work efficiency;

[0004] However, when in use, when the existing welding mechanism welds metal structure parts, the metal structure parts are fixed to the operating table, and the metal structure parts are welded by an electric welding gun. After one surface of the metal structure parts is welded, the staff needs to remove the metal structure parts, turn them over to another welding surface, and then fix the metal structure parts to the operating table again to continue welding the metal structure parts. This results in the need to fix the metal structure parts multiple times during welding, wasting time and thus reducing the working efficiency of the existing welding mechanism. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a welding mechanism for metal structure part processing, which solves the problem that when the existing welding mechanism welds metal structure parts, after one surface of the metal structure parts is welded, the staff needs to remove the metal structure parts, turn them over to another welding surface, and needs to fix the metal structure parts multiple times, wasting time and thus reducing the working efficiency of the existing welding mechanism.

[0006] To achieve the above object, the utility model is realized by the following technical solutions: A welding mechanism for processing metal structural parts, including a box body, a shell is fixedly connected to the top of the box body, a sliding door is hinged to the front of the shell, an electric welding gun is arranged inside the shell, a clamping block is arranged inside the shell, a turning device is arranged inside the box body, and the turning device includes a first motor, a connecting column, a vertical column, a first pulley, a belt, a second pulley and a sleeve. The output shaft of the first motor is fixedly connected with the connecting column, and the first motor is fixedly connected to the inner wall of the box body through a motor sleeve. Both ends of the connecting column are rotatably connected to the vertical column through bearings, and the tops of the two vertical columns are fixedly connected to the inner wall of the box body. The outer wall of the connecting column is fixedly connected with a first pulley, the outer wall of the first pulley is fitted with a belt, the inner wall of the belt is fitted with a second pulley, the inner wall of the second pulley is fixedly connected with a sleeve, and the outer wall of the sleeve is rotatably connected to the inner wall of the shell.

[0007] Preferably, a second electric telescopic rod is fixedly connected to the inner wall of the sleeve, and the output end of the second electric telescopic rod is fixedly connected with a connecting plate, and the connecting plate is fixedly connected to the inner wall of the clamping block by bolts.

[0008] Preferably, a first cover body is fixedly connected to the outer wall of the shell, and the bottom of the first cover body is fitted to the outer wall of the box body.

[0009] Preferably, a first electric telescopic rod is fixedly connected to the bottom of the inner wall of the box body, the top output end of the first electric telescopic rod is fixedly connected with a support plate, a telescopic rod is fixedly connected to the bottom of the support plate, and the bottom of the telescopic rod is fixedly connected to the inner wall of the box body.

[0010] Preferably, a moving component is installed on the top of the inner wall of the shell, a hydraulic cylinder is installed at the bottom of the moving component, and the output end of the bottom of the hydraulic cylinder is fixedly connected with a second cover body.

[0011] Preferably, a second motor is fixedly connected to one side of the second cover body, the output shaft of the second motor is fixedly connected with a worm, both ends of the worm are rotatably connected to the inner wall of the second cover body through bearings, a worm gear is meshed below the worm, the worm gear is fixedly connected with a vertical plate through a pin shaft, the inner part of the second cover body is rotatably connected with the pin shaft, and an electric welding gun is installed at the bottom of the vertical plate. Beneficial effects

[0012] The utility model provides a welding mechanism for processing metal structural parts, which has the following beneficial effects: through the cooperation among the first motor, the connecting column, the column, the first pulley, the belt, the second pulley and the sleeve, when one surface of the metal structural part is welded, the metal structural part can be automatically flipped, and it is not necessary to fix the metal structural part multiple times. This solves the problem that when the existing welding mechanism welds the metal structural part, after one surface of the metal structural part is welded, the staff needs to remove the metal structural part and flip it to another welding surface, and it is necessary to fix the metal structural part multiple times, which wastes time and thus reduces the working efficiency of the existing welding mechanism.

[0013] Through the cooperation among the second cover body, the second motor, the worm, the worm gear, the pin shaft and the support plate, the angle of the electric welding gun can be adjusted to weld the metal structural part at an angle, which solves the problem that when the metal structural part needs to be welded at an angle, due to the fixed position of the electric welding gun, the angle of the electric welding gun cannot be adjusted, resulting in the inability to weld the metal structural part at an angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is Figure 1 the external appearance schematic diagram of

[0016] Figure 3 is Figure 1 the structural schematic diagram of the first motor, the connecting column and the sleeve in

[0017] Figure 4 is Figure 1 the structural schematic diagram of the first electric telescopic rod, the support plate and the box body in

[0018] Figure 5 is Figure 1 the structural schematic diagram of the second motor, the worm and the support plate in

[0019] In the figure: 1. Box body, 2. Shell, 3. First electric telescopic rod, 4. Moving component, 5. Hydraulic cylinder, 6. Electric welding gun, 7. Clamping block, 8. First motor, 9. Connecting column, 10. Column, 11. First pulley, 12. Belt, 13. Second pulley, 14. Sleeve, 15. Second hydraulic cylinder, 16. Connecting plate, 17. First cover body, 18. Support plate, 19. Telescopic rod, 20. Second cover body, 21. Second motor, 22. Worm, 23. Worm gear, 24. Vertical plate, 25. Sliding door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] When the existing welding mechanism welds a metal structural member, after one surface of the metal structural member is welded, it is necessary for the staff to remove the metal structural member and turn it over to another welding surface, and the metal structural member needs to be fixed multiple times, which wastes time and thus reduces the working efficiency of the existing welding mechanism.

[0022] In view of this, the present utility model provides a welding mechanism for processing metal structural members. Through the cooperation among the first motor, the connecting column, the column, the first pulley, the belt, the second pulley and the sleeve, when one surface of the metal structural member is welded, the metal structural member can be automatically turned over, and it is not necessary to fix the metal structural member multiple times, solving the problem that when the existing welding mechanism welds a metal structural member, after one surface of the metal structural member is welded, it is necessary for the staff to remove the metal structural member and turn it over to another welding surface, and the metal structural member needs to be fixed multiple times, which wastes time and thus reduces the working efficiency of the existing welding mechanism.

[0023] Those skilled in the art shall connect the components in this case in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0024] Embodiment 1 consists of Figure 1-4It can be seen that a welding mechanism for processing metal structural parts in this case includes a box body 1. A shell 2 is fixedly connected to the top of the box body 1. A sliding door 25 is hinged to the front of the shell 2. The staff opens the sliding door 25, puts the metal structural part into the shell 2. After that, the staff closes the sliding door 25. An electric welding gun 6 is arranged inside the shell 2, and the electric welding gun 6 welds the metal structural part. Clamping blocks 7 are arranged inside the shell 2, and the clamping blocks 7 on both sides are inserted into both sides of the metal structural part to fix it. A flipping device is arranged inside the box body 1. The flipping device includes a first motor 8, a connecting column 9, a column 10, a first pulley 11, a belt 12, a second pulley 13 and a sleeve 14. The model of the first motor 8 is selected according to actual needs as long as it meets the work requirements. The output shaft of the first motor 8 is fixedly connected to the connecting column 9, and the first motor 8 drives the connecting column 9 to rotate. The first motor 8 is fixedly connected to the inner wall of the box body 1 through a motor sleeve. Both ends of the connecting column 9 are rotatably connected to the column 10 through bearings, and the tops of the two columns 10 are fixedly connected to the inner wall of the box body 1. The outer wall of the connecting column 9 is fixedly connected to the first pulley 11, and the connecting column 9 drives the first pulley 11 to rotate. The outer wall of the first pulley 11 is in fitting connection with the belt 12, and the first pulley 11 drives the belt 12 to rotate. The inner wall of the belt 12 is in fitting connection with the second pulley 13, and the belt 12 drives the second pulley 13 to rotate. The inner wall of the second pulley 13 is fixedly connected to the sleeve 14, and the second pulley 13 drives the sleeve 14 to rotate, thereby driving the clamping block 7 to rotate. The outer wall of the sleeve 14 is rotatably connected to the inner wall of the shell 2;

[0025] In the specific implementation process, it is particularly worth noting that the model of the first motor 8 is selected according to actual needs as long as it meets the work requirements. The staff opens the sliding door 25, puts the metal structural part into the shell 2. After that, the staff closes the sliding door 25. The electric welding gun 6 welds the metal structural part. The clamping blocks 7 on both sides are inserted into both sides of the metal structural part to fix the metal structural part. The first motor 8 drives the connecting column 9 to rotate, the connecting column 9 drives the first pulley 11 to rotate, the first pulley 11 drives the belt 12 to rotate, the belt 12 drives the second pulley 13 to rotate, and the second pulley 13 drives the sleeve 14 to rotate, thereby driving the clamping block 7 to rotate, realizing automatic flipping of the metal structural part and flipping the metal structural part to another welding surface for continuous welding;

[0026] Furthermore, a second electric telescopic rod 15 is fixedly connected to the inner wall of the sleeve 14. The sleeve 14 drives the second motor 21 to move. The model of the second electric telescopic rod 15 is selected according to actual needs as long as it meets the working requirements. At the same time, the second electric telescopic rods 15 at both ends are started. The second electric telescopic rod 15 drives the clamping block 7 to move to fix the metal structure. The output end of the second electric telescopic rod 15 is fixedly connected to a connecting plate 16. The second electric telescopic rod 15 drives the connecting plate 16, the bolt and the clamping block 7 to rotate, thereby driving the metal structure to rotate and turning it over. The connecting plate 16 is fixedly connected to the inner wall of the clamping block 7 through a bolt. By the staff rotating the bolt, the clamping block 7 can be replaced to fix metal structures of different sizes;

[0027] In the specific implementation process, it is particularly worth noting that the model of the second electric telescopic rod 15 is selected according to actual needs as long as it meets the working requirements. The sleeve 14 drives the second motor 21 to move. The second electric telescopic rod 15 drives the connecting plate 16, the bolt and the clamping block 7 to rotate, thereby driving the metal structure to rotate and turning it over. At the same time, the second electric telescopic rods 15 at both ends are started. The second electric telescopic rod 15 drives the clamping block 7 to move to fix the metal structure. By the staff rotating the bolt, the clamping block 7 can be replaced to fix metal structures of different sizes;

[0028] Furthermore, a first cover 17 is fixedly connected to the outer wall of the housing 2. The bottom of the first cover 17 is attached to the outer wall of the box body 1. The first cover 17 covers the second pulley 13 and the second electric telescopic rod 15 to prevent the staff from touching the rotating second pulley 13. A through hole is provided on one side of the first cover 17 to cool the inside of the first cover 17;

[0029] In the specific implementation process, it is particularly worth noting that the first cover 17 covers the second pulley 13 and the second electric telescopic rod 15 to prevent the staff from touching the rotating second pulley 13. A through hole is provided on one side of the first cover 17 to cool the inside of the first cover 17;

[0030] Furthermore, a first electric telescopic rod 3 is fixedly connected to the bottom of the inner wall of the box body 1. The model of the first electric telescopic rod 3 is selected according to actual needs as long as it meets the working requirements. The top output end of the first electric telescopic rod 3 is fixedly connected to a support plate 18. When welding a metal structural member is required, start the first electric telescopic rod 3. The first electric telescopic rod 3 drives the support plate 18 to rise. A telescopic rod 19 is fixedly connected to the bottom of the support plate 18. The support plate 18 drives the telescopic rod 19. The support plate 18 contacts the bottom of the metal structural member to support the metal structural member during the welding process. After completion, stop the first electric telescopic rod 3. The bottom of the telescopic rod 19 is fixedly connected to the inner wall of the box body 1. When the metal structural member needs to be flipped, the first electric telescopic rod 3 drives the support plate 18 to descend, and the support plate 18 returns to the inside of the box body 1, and the metal structural member can be flipped;

[0031] In the specific implementation process, it is particularly worth noting that the model of the first electric telescopic rod 3 is selected according to actual needs as long as it meets the working requirements. When welding a metal structural member is required, start the first electric telescopic rod 3. The first electric telescopic rod 3 drives the support plate 18 to rise. The support plate 18 drives the telescopic rod 19. The support plate 18 contacts the bottom of the metal structural member to support the metal structural member during the welding process. After completion, stop the first electric telescopic rod 3. When the metal structural member needs to be flipped, the first electric telescopic rod 3 drives the support plate 18 to descend, and the support plate 18 returns to the inside of the box body 1, and the metal structural member can be flipped;

[0032] Furthermore, a moving component 4 is installed at the top of the inner wall of the housing 2. The moving component 4 includes a first electric slide rail, a first slider, a second electric slide rail and a second slider. The top of the first electric slide rail is fixedly connected to the inside of the housing 2. The outer wall of the first electric slide rail is slidably clamped with a first slider. The top of the first slider is fixedly connected to a second electric slide rail. The outer wall of the second electric slide rail is slidably clamped with a second slider. The bottom of the second slider is fixedly connected to the top of the hydraulic cylinder 5. The models of the first electric slide rail and the second electric slide rail are selected according to actual needs as long as it meets the working requirements. Start the first electric slide rail, and the first slider slides on the first electric slide rail to drive the electric welding gun 6 to move in the front-back direction to weld the metal structural member in the front-back direction. Start the second electric slide rail, and the second slider slides on the second electric slide rail to drive the electric welding gun 6 to move in the left-right direction to weld the metal structural member in the left-right direction. A hydraulic cylinder 5 is installed at the bottom of the moving component 4. The model of the hydraulic cylinder 5 is selected according to actual needs as long as it meets the working requirements. The output end at the bottom of the hydraulic cylinder 5 is fixedly connected to a second cover body 20. Start the hydraulic cylinder 5, and the hydraulic cylinder 5 drives the second cover body 20 to move, thereby driving the electric welding gun 6 to move up and down;

[0033] In the specific implementation process, it is particularly worth noting that the moving component 4 includes a first electric slide rail, a first slider, a second electric slide rail and a second slider. The top of the first electric slide rail is fixedly connected to the inside of the housing 2. The outer wall of the first electric slide rail is slidably clamped with the first slider. The top of the first slider is fixedly connected to the second electric slide rail. The outer wall of the second electric slide rail is slidably clamped with the second slider. The bottom of the second slider is fixedly connected to the top of the hydraulic cylinder 5. The models of the first electric slide rail and the second electric slide rail are selected according to actual needs as long as they meet the working requirements. When the first electric slide rail is started, the first slider slides on the first electric slide rail, thereby driving the welding torch 6 to move in the front-back direction to weld the metal structure member in the front-back direction. When the second electric slide rail is started, the second slider slides on the second electric slide rail, thereby driving the welding torch 6 to move in the left-right direction to weld the metal structure member in the left-right direction. The model of the hydraulic cylinder 5 is selected according to actual needs as long as it meets the working requirements. When the hydraulic cylinder 5 is started, the hydraulic cylinder 5 drives the second cover body 20 to move, thereby driving the welding torch 6 to move up and down;

[0034] Specifically, when welding a metal structure member is required, first, the staff opens the sliding door 25, puts the metal structure member into the housing 2, and at the same time starts the second electric telescopic rods 15 at both ends. The second electric telescopic rods 15 drive the clamping blocks 7 to move to fix the metal structure member. After that, the staff closes the sliding door 25, and then stops the second electric telescopic rods 15 on both sides at the same time. Then, the moving component 4, the hydraulic cylinder 5 and the welding torch 6 are started. The moving component 4 drives the welding torch 6 to move in the front-back, left-right directions, and the hydraulic cylinder 5 drives the welding torch 6 to move in the up-down direction to weld the metal structure member. At this time, the first electric telescopic rod 3 is started. The first electric telescopic rod 3 drives the support plate 18 to rise. The support plate 18 drives the telescopic rod 19. The support plate 18 contacts the bottom of the metal structure member to support the metal structure member during the welding process. After that, the first electric telescopic rod 3 is stopped. When welding other surfaces of the metal structure member is required, the hydraulic cylinder 5 drives the welding torch 6 to rise back to the initial position. The first electric telescopic rod 3 drives the support plate 18 to descend, and the support plate 18 returns to the inside of the box body 1. After that, the first motors 8 on both sides are simultaneously connected to an external power supply. The first motors 8 drive the connecting columns 9 to rotate. The connecting columns 9 drive the first belt pulleys 11 to rotate. The first belt pulleys 11 drive the belts 12 to rotate. The belts 12 drive the second belt pulleys 13 to rotate. The second belt pulleys 13 drive the sleeves 14 to rotate. The sleeves 14 drive the second motors 21 to move. The second electric telescopic rods 15 drive the connecting plates 16, bolts and clamping blocks 7 to rotate. The clamping blocks 7 on both sides flip the metal structure member. After that, the first motors 8 on both sides are stopped at the same time, and welding of other surfaces of the metal structure member is started. When the welding of the metal structure member is completed, the clamping blocks 7 on both sides leave both sides of the metal structure member, release the fixation of the metal structure member, and take out the welded metal structure member from the housing 2.

[0035] Example 2. It can be seen from Figure 1 and 5 that one side of the second cover body 20 is fixedly connected with a second motor 21. The second motor 21 can be selected according to actual needs as long as it meets the working requirements. The output shaft of the second motor 21 is fixedly connected with a worm 22. When angle welding of metal structural parts is required, the second motor 21 is connected to an external power supply. The second motor 21 drives the worm 22 to rotate. Both ends of the worm 22 are rotatably connected to the inner wall of the second cover body 20 through bearings. A worm gear 23 is meshed and connected below the worm 22. The worm 22 drives the worm gear 23 to rotate. Through the self-locking characteristic between the worm 22 and the worm gear 23, the electric welding gun 6 after rotation is locked. The worm gear 23 is fixedly connected with a vertical plate 24 through a pin shaft. The worm gear 23 drives the pin shaft to rotate, thereby driving the vertical plate 24 to rotate. The inside of the second cover body 20 is rotatably connected with the pin shaft. The electric welding gun 6 is installed at the bottom of the vertical plate 24. The vertical plate 24 drives the electric welding gun 6 to rotate;

[0036] In the specific implementation process, it is particularly pointed out that the second motor 21 can be selected according to actual needs as long as it meets the working requirements. When angle welding of metal structural parts is required, the second motor 21 is connected to an external power supply. The second motor 21 drives the worm 22 to rotate. The worm 22 drives the worm gear 23 to rotate. Through the self-locking characteristic between the worm 22 and the worm gear 23, the electric welding gun 6 after rotation is locked. The worm gear 23 drives the pin shaft to rotate, thereby driving the vertical plate 24 to rotate. The vertical plate 24 drives the electric welding gun 6 to rotate, realizing the adjustment of the angle of the electric welding gun 6 and performing angle welding on the metal structural parts;

[0037] Specifically, when angle welding of metal structural parts is required, the second motor 21 is connected to an external power supply. The second motor 21 drives the worm 22 to rotate. The worm 22 drives the worm gear 23 to rotate. The worm gear 23 drives the pin shaft to rotate, thereby driving the vertical plate 24 to rotate. The vertical plate 24 drives the electric welding gun 6 to rotate, realizing the adjustment of the angle of the electric welding gun 6 and performing angle welding on the metal structural parts. After the adjustment is completed, the second motor 21 is stopped.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0039] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A welding mechanism for processing metal structural parts, comprising a box (1), characterized in that: The top of the box body (1) is fixedly connected to a shell body (2), a sliding door (25) is hingedly connected to the front of the shell body (2), an electric welding gun (6) is arranged inside the shell body (2), a clamping block (7) is arranged inside the shell body (2), and a turning device is arranged inside the box body (1); The turning device comprises a first motor (8), a connecting column (9), a column (10), a first pulley (11), a belt (12), a second pulley (13) and a sleeve (14); The output shaft of the first motor (8) is fixedly connected to a connecting column (9); the first motor (8) is fixedly connected to the inner wall of the box body (1) via a motor sleeve; both ends of the connecting column (9) are rotatably connected to columns (10) via bearings; the tops of the two columns (10) are fixedly connected to the inner wall of the box body (1); the outer wall of the connecting column (9) is fixedly connected to a first pulley (11); the outer wall of the first pulley (11) is fittedly connected to a belt (12); the inner wall of the belt (12) is fittedly connected to a second pulley (13); the inner wall of the second pulley (13) is fixedly connected to a sleeve (14); the outer wall of the sleeve (14) is rotatably connected to the inner wall of the housing (2) via a bearing.

2. A welding mechanism for processing metal structural parts according to claim 1, characterized in that: The inner wall of the sleeve (14) is fixedly connected to a second electric telescopic rod (15), the output end of the second electric telescopic rod (15) is fixedly connected to a connecting plate (16), and the connecting plate (16) is fixedly connected to the inner wall of the clamping block (7) by means of bolts.

3. The welding mechanism for processing metal structural parts according to claim 1, characterized in that: The outer wall of the shell (2) is fixedly connected to a first cover body (17), and the bottom of the first cover body (17) is closely connected to the outer wall of the box body (1).

4. The welding mechanism for processing metal structural parts according to claim 1, characterized in that: A first electric telescopic rod (3) is fixedly connected to the bottom of the inner wall of the box (1); a top output end of the first electric telescopic rod (3) is fixedly connected to a support plate (18); a telescopic rod (19) is fixedly connected to the bottom of the support plate (18); and a bottom of the telescopic rod (19) is fixedly connected to the inner wall of the box (1).

5. The welding mechanism for processing metal structural parts according to claim 1, characterized in that: A moving assembly (4) is installed on the top of the inner wall of the housing (2), a hydraulic cylinder (5) is installed on the bottom of the moving assembly (4), and the output end of the bottom of the hydraulic cylinder (5) is fixedly connected to a second cover body (20).

6. A welding mechanism for processing metal structural parts according to claim 5, characterized in that: A second motor (21) is fixedly connected to one side of the second cover body (20); a worm (22) is fixedly connected to the output shaft of the second motor (21); both ends of the worm (22) are rotatably connected to the inner wall of the second cover body (20) via bearings; a worm wheel (23) is meshingly connected to the bottom of the worm (22); the worm wheel (23) is fixedly connected to a vertical plate (24) via a pin shaft; the interior of the second cover body (20) is rotatably connected to the pin shaft; and an electric welding gun (6) is mounted at the bottom of the vertical plate (24).

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