Automobile parts semi-automatic electric arc welding device and method thereof

Abstract

The application discloses a kind of automobile parts semi-automatic electric arc welding device and method thereof, it is related to automobile parts welding technical field, including workbench, the bottom of workbench is symmetrically equipped with supporting leg, and the top of workbench is penetrated and is equipped with welding groove, and the top of welding groove is provided with welding torch, further comprising: support assembly, set in the side and top of workbench, support assembly includes rotating seat, positioning assembly, set in the two sides of rotating seat, rotating seat, rotationally connected in the side of workbench, the side of rotating seat away from workbench is hinged with rotating plate, and the side of rotating plate is symmetrically equipped with mounting bracket, and the side of two mounting brackets close to each other is fixedly installed with fixed rod;So that when welding part, welding point can be guaranteed to be on same straight line, improve the quality of welding, and welding height can be conveniently and quickly adjusted during welding, improve convenience and practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile component welding, in particular to a semi-automatic arc welding device and method for automobile component welding. Background Art

[0002] A semi-automatic arc welding machine refers to a machine in which operations such as wire feeding, arc striking, and current and voltage adjustment are automatically completed by mechanical or electrical systems during the welding process, while the movement trajectory of the welding gun still requires manual control.

[0003] For example, an automatic temperature control transformer with publication number CN115673483B is provided, which is provided with a first limiting assembly and a first adjusting assembly connected between a main body and a first gun barrel, a second limiting assembly and a second adjusting assembly connected between the first gun barrel and the second gun barrel, and according to the scale rings provided on the main body and the second adjusting wheel, when the staff adjusts the angle, the first adjusting wheel in the first adjusting assembly is rotated to adjust the up and down movement angle of the first gun barrel. After the adjustment is completed, the first moving block in the first limiting assembly is moved to limit the position of the first adjusting wheel. Subsequently, the second adjusting wheel in the second adjusting assembly is rotated to adjust the left and right movement angle of the second gun barrel. After the adjustment is completed, the staff further moves the first adjusting wheel in the second limiting assembly to limit the position of the first adjusting wheel. The second movable block in the movable second limit assembly limits the position of the second adjusting wheel, so that the staff can flexibly adjust the angle of the welding gun without moving the position of the welding gun, which greatly increases the flexibility and practicality of the device. However, in actual use, when welding automobile parts by semi-automatic arc welding, the staff needs to hold the welding gun all the time for welding. When butt welding or spot welding automobile parts, it is necessary to keep the movement trajectory of the welding gun in a straight line. Since the welding gun is controlled by the staff, the welding process will be affected by experience. The automobile parts are prone to deviation during the butt welding process, which will affect the welding quality and welding efficiency, and there are certain usage defects.

[0004] Therefore we have proposed a semi-automatic arc welding device and method for automobile parts, in order to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a semi-automatic arc welding device and method for automobile parts, so as to solve the problem proposed in the above-mentioned background technology that when welding automobile parts by semi-automatic arc welding, the worker needs to hold the welding gun all the time to weld, and when butt welding or spot welding the automobile parts, the movement trajectory of the welding gun needs to be kept in a straight line. Since the welding gun is controlled by the worker, the welding process will be affected by experience, and the automobile parts are prone to deviation during the butt welding process, which affects the welding quality and welding efficiency.

[0006] To achieve the above object, the present application provides the following technical scheme: a kind of automobile parts semi-automatic electric arc welding device, including workbench, the bottom of workbench is symmetrically equipped with support leg, and the top of workbench is equipped with welding slot, and the upper of welding slot is provided with welding torch;

[0007] Also includes:

[0008] Supporting assembly is arranged in the side and upper of workbench, and supporting assembly includes rotating seat;

[0009] Positioning assembly is arranged in the two sides of rotating seat;

[0010] Rotating seat is rotatably connected in the side of workbench, rotating plate is hinged in the side of rotating seat away from workbench, and the side of rotating plate is symmetrically equipped with mounting bracket, and the side of two mounting brackets close to each other is fixedly installed with fixed rod, while the rotating sleeve is rotatably connected between the two fixed rods, and the adjusting rod is slidably connected in the inside of rotating sleeve;

[0011] Mounting sleeve is fixedly installed in the top of adjusting rod, and the inside of mounting sleeve is slidably connected with moving rod, and the end of moving rod is fixedly installed with fixed sleeve, and the inside of fixed sleeve is slidably connected with movable rod, while the inside of movable rod is threadedly connected with positioning bolt, and the top of movable rod is symmetrically equipped with support bracket on one side.

[0012] Preferably, the rotating rod is rotatably connected between the two support brackets, and the fixed bracket is fixedly installed on the outside of rotating rod, and two sets of limiting blocks are symmetrically installed on the two sides of fixed bracket outside rotating rod, while the positioning block is symmetrically installed on the side of two support brackets close to each other and on the two sides of two sets of limiting blocks, and the positioning sleeve is fixedly installed on the top of fixed bracket, and the knurled screw is threadedly connected in the inside of positioning sleeve.

[0013] By adopting the above technical scheme, the angle of welding torch can be fine-tuned during welding.

[0014] Preferably, the cam is fixedly installed on the outside of two fixed rods, and the through slot is formed in the side of rotating sleeve, and the positioning plate is arranged in the inside of through slot, while the rubber bump is fixedly installed on the side of positioning plate, and two sets of mounting blocks are symmetrically installed on the two sides of positioning plate.

[0015] By adopting the above technical scheme, the positioning of adjusting rod is facilitated.

[0016] Preferably, the inside of the two sets of mounting blocks are slidably connected with guide rods, and the guide rods are fixedly connected to the rotating sleeve, and a movable frame is fixedly installed on the side of the two mounting blocks on each side away from each other, and at the same time, the outer side of the movable frame is slidably connected to the limiting frame, and the limiting frame is fixedly connected to the rotating sleeve, and a moving frame is fixedly installed on one end of the two movable frames on each side, and the moving frame is slidably connected to the cam.

[0017] By adopting the above technical solution, when the rotating sleeve rotates to the vertical mounting bracket, the movable bracket can be pushed to move by the cam.

[0018] Preferably, the first magnet blocks are symmetrically installed on both sides of the two fixed rods outside the rotating sleeve, and the two mounting frames are symmetrically installed on both sides of the cam, and the second magnet block is fixedly installed on the side of the L-shaped frame close to the first magnet block, and the second magnet block is adsorbed on the first magnet block.

[0019] By adopting the above technical solution, the rotating sleeve can be positioned by the first magnet block and the second magnet block.

[0020] Preferably, a mounting rod is fixedly installed on one side of the workbench above the rotating seat, and a fixed seat is fixedly installed on the end of the mounting rod away from the workbench, and a limiting rod is fixedly installed inside the fixed seat, and a movable block is slidably connected to the outside of the limiting rod.

[0021] By adopting the above technical solution, the movement of the movable block is limited and supported.

[0022] Preferably, an inclined annular groove is provided on one side of the rotating plate close to the rotating seat, and a spherical piece is slidably connected to the upper part of the inclined annular groove, and the spherical piece is fixedly connected to the movable block.

[0023] By adopting the above technical solution, the spherical member can pull the rotating plate to rotate after the rotating seat rotates half a circle.

[0024] Preferably, the positioning assembly includes fixed blocks symmetrically arranged on both sides of the rotating seat, and the two fixed blocks are fixedly connected to the workbench, and a through hole is opened on one side of the two fixed blocks, and a positioning pin is passed through the inside of the two fixed blocks, and a positioning hole is opened on one side of the rotating seat, and the positioning pin is adapted to be connected with the positioning hole.

[0025] By adopting the above technical solution, it is convenient to position the rotating seat and adjust the rotating seat.

[0026] Preferably, one side of the fixed block is fixedly provided with a supporting block, the supporting block is slidably connected with a positioning rod inside, a positioning slot is formed in one side of the positioning rod, the positioning rod is in clamping connection with the positioning slot, an elastic spring is sleeved outside the positioning rod on one side of the supporting block, and two ends of the elastic spring are fixedly connected with the positioning rod and the supporting block.

[0027] By adopting the above technical scheme, the positioning rod can be automatically reset after moving, and the positioning pin can be conveniently positioned.

[0028] A semi-automatic electric arc welding method for automobile parts, the specific use steps are as follows:

[0029] Step one:

[0030] When welding automobile parts, the two parts to be fixed are placed on the workbench, so that the butt joint is above and parallel to the welding groove. Then the worker can move the adjusting rod according to the required welding height, so that the height of the welding gun can be changed. The movable rod can be moved according to the position to be welded, so that the front and rear positions of the welding gun can be adjusted. After adjustment, the positioning bolt can be tightened to position the movable rod. Then rotate the adjusting rod to rotate the rotating sleeve on the two fixed rods. After the rotating sleeve rotates, the moving frame rotates, and the moving frame moves during rotation under the action of the cam. Then the positioning plate can be moved by the movable frame and the mounting block, so that the rubber bump can tightly fit the adjusting rod after the positioning plate moves, so that the adjusting rod can be reliably positioned. At this time, the height of the welding gun is fixed, and the rotating sleeve is perpendicular to the ground, so that the first magnet block and the second magnet block are attracted. The position of the adjusting rod will not change. Then the parts can be spot welded or continuously welded by the welding gun. When welding the parts, the position of the welding gun can be moved to drive the moving rod to slide on the mounting sleeve, so that the welding position can be ensured to be in the same straight line. The welding gun can be fixed by the knurled screw, the fixed frame can drive the rotating rod to rotate, and the rotating range of the rotating rod is limited by the positioning block, so that the inclination angle of the welding gun is small when vertical welding the parts, which can ensure the welding quality. The angle of the welding gun can be adjusted according to the actual welding condition. When the height of the welding gun needs to be adjusted during vertical welding, the first magnet block and the second magnet block can be separated by directly rotating the adjusting rod, so that the adjusting rod is out of position and the height of the welding gun can be directly adjusted. After adjustment, the adjusting rod is positioned vertically.

[0031] Step two:

[0032] When welding the butt joint bottom of the part, the movable fixing sleeve is attached to the mounting sleeve, then the rotating seat is rotated by half a circle to rotate the welding torch to the lower side of the workbench, the rotating seat drives the rotating plate to rotate in the rotating process, the spherical part slides in the inclined ring groove when the rotating plate rotates, the rotating plate can be pulled to rotate on the rotating seat through the spherical part after rotating half a circle, and when the welding torch is rotated to the lower side of the workbench, the included angle between the welding torch and the part can be reduced, so that the risk of molten pool dripping due to gravity during welding of the welding torch is reduced during the overhead welding of the part, and the staff does not need to hold the welding torch all the time, the knurled screw on the positioning sleeve can be loosened during the overhead welding because the moving rod is not perpendicular to the ground, so that the welding torch is in a movable state, the staff can control the welding torch to move together with the moving rod, and the position of the welding torch on the positioning sleeve can be adjusted separately.

[0033] Step three:

[0034] The rotating seat is positioned by the positioning pin before rotation, when the rotating seat needs to be rotated, the positioning rod can be pulled and the extension spring can be stretched, so that the positioning rod is separated from the positioning groove, so that the positioning pin can be out of limit, and then the positioning pin can be removed, so that the rotating seat is out of limit, the rotating seat can be rotated to adjust the welding position, after the rotating seat is rotated, the positioning pin is inserted through the positioning hole on the rotating seat and the two fixing blocks, then the positioning rod is pulled, the position of the positioning pin is adjusted to align the positioning rod with the positioning groove, then the positioning rod is loosened, the positioning rod is clamped with the positioning groove under the action of the extension spring, so that the positioning pin is positioned, the rotating seat is positioned by the positioning pin, and then the rotating seat is conveniently positioned.

[0035] Compared with the prior art, the automobile part semi-automatic electric arc welding device and method have the advantages that: the automobile part semi-automatic electric arc welding device and method can ensure that the welding points are on the same straight line during welding of the part, improve the welding quality, and conveniently and quickly adjust the welding height during welding, improve the convenience and practicality.

[0036] 1. When welding automobile parts, place two parts that need to be fixed on the workbench so that the butt joint is above and parallel to the welding groove. Then the worker can move the adjusting rod according to the required welding height, which can change the height of the welding gun. The movable rod can be moved according to the position to be welded to adjust the front and back position of the welding gun. After adjustment, the positioning bolt can be tightened to position the movable rod. Then rotate the adjusting rod to rotate the rotating sleeve on the two fixed rods. After the rotating sleeve rotates, the moving frame rotates, and the moving frame moves during rotation under the action of the cam. Then the movable frame and the mounting block can drive the positioning plate to move, so that the rubber bump can tightly fit the adjusting rod after the positioning plate moves, so that the adjusting rod can be reliably positioned. At this time, the height of the welding gun is fixed, and the rotating sleeve is perpendicular to the ground, so that the first magnet block and the second magnet block are attracted, and the position of the adjusting rod will not change. Then the parts can be spot welded or continuously welded by the welding gun. When welding the parts, moving the position of the welding gun drives the moving rod to slide on the mounting sleeve, which can ensure that the welding position is in the same straight line. The welding gun can be fixed by knurled screws, the fixed frame can drive the rotating rod to rotate, and the rotating range of the rotating rod is limited by the positioning block, so that the inclination angle of the welding gun is small when vertical welding the parts, which can ensure the quality of welding, and the angle of the welding gun can be adjusted according to the actual welding situation. When the height of the welding gun needs to be adjusted during vertical welding, the first magnet block and the second magnet block can be separated by directly rotating the adjusting rod, so that the adjusting rod loses the limit and the height of the welding gun can be directly adjusted. After adjustment, the adjusting rod is rotated to the vertical state, the adjusting rod can be positioned, so that the welding points can be in the same straight line when welding the parts, improving the quality of welding, and the height of the welding can be adjusted conveniently and quickly during welding, improving convenience and practicality.

[0037] 2. When welding the butt joint of the parts, move the fixed sleeve and the mounting sleeve to fit, then rotate the rotating seat by half a circle to rotate the welding gun to the lower side of the workbench. The rotating plate is driven to rotate by the rotating seat during rotation, and the spherical part slides in the inclined ring groove when the rotating plate rotates. After the rotating plate rotates by half a circle, the spherical part can pull the rotating plate to rotate on the rotating seat, so that the welding gun can be rotated to the lower side of the workbench. The included angle between the welding gun and the parts can be reduced, so that the risk of molten pool dripping due to gravity when welding the welding gun during overhead welding can be reduced. The worker does not need to hold the welding gun all the time. During overhead welding, the movable rod is not perpendicular to the ground, the knurled screw on the positioning sleeve can be loosened, so that the welding gun is in a movable state. The worker can control the welding gun to move with the movable rod, and can independently adjust the position of the welding gun on the positioning sleeve, which is convenient for spot welding and continuous welding of the parts during overhead welding, reduces the difficulty of the worker during overhead welding, improves the welding efficiency, and improves the practicality.

[0038] 3、The rotating seat is positioned by the positioning pin before rotation, when the rotating seat needs to be rotated, the positioning rod can be pulled and the extension spring is stretched, so that the positioning rod is separated from the positioning groove, the positioning pin can be out of limit, and then the positioning pin can be removed, so that the rotating seat is out of limit, the rotating seat can be rotated to adjust the welding position, after the rotating seat is rotated, the positioning pin is inserted through the two fixing blocks and the positioning hole on the rotating seat, then the positioning rod is pulled, the position of the positioning pin is adjusted to make the positioning rod aligned with the positioning groove, then the positioning rod is loosened, the positioning rod is clamped with the positioning groove under the action of the extension spring, so that the positioning pin is positioned, the rotating seat is positioned by the positioning pin, and then the rotating seat is conveniently positioned and the welding position is conveniently adjusted, and after the adjustment, the rotating seat can be prevented from being accidentally rotated. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0040] Figure 2 It is a schematic diagram of another state structure of the overall structure of the present application;

[0041] Figure 3 It is a schematic diagram of the support assembly structure of the present application;

[0042] Figure 4 It is a schematic diagram of the positioning sleeve structure of the present application;

[0043] Figure 5 It is a schematic diagram of the local structure of the support assembly of the present application;

[0044] Figure 6 It is a schematic diagram of the cross-section structure of the rotating sleeve of the present application;

[0045] Figure 7 It is a schematic diagram of another state structure of the support assembly of the present application;

[0046] Figure 8 It is a schematic diagram of the Figure 7 enlarged structure of A in the present application;

[0047] Figure 9 It is a schematic diagram of the cross-section structure of the rotating plate of the present application;

[0048] Figure 10 It is a schematic diagram of the positioning assembly structure of the present application.

[0049] In the figure: 1, workbench; 101, support leg; 102, welding groove; 103, welding gun; 2, support assembly; 201, rotating seat; 202, rotating plate; 203, mounting frame; 204, fixed rod; 205, rotating sleeve; 206, adjusting rod; 207, mounting sleeve; 208, moving rod; 209, fixed sleeve; 210, movable rod; 211, positioning bolt; 212, support frame; 213, rotating rod; 214, fixed frame; 215, positioning sleeve; 216, knurled screw; 217, limiting block; 218, positioning block; 219, cam; 220, positioning plate; 221, mounting block; 222, guide rod; 223, movable frame; 224, limiting frame; 225, moving frame; 226, first magnet block; 227, L-shaped frame; 228, second magnet block; 229, mounting rod; 230, fixed seat; 231, limiting rod; 232, movable block; 233, inclined ring groove; 234, spherical part; 3, positioning assembly; 301, fixed block; 302, positioning pin; 303, positioning hole; 304, support block; 305, positioning rod; 306, telescopic spring; 307, positioning groove. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0051] Please refer to Figures 1-10 The present application provides a technical solution: a semi-automatic electric arc welding device for automobile parts, comprising a workbench 1, support legs 101 are symmetrically installed on the bottom of the workbench 1, a welding groove 102 is provided through the top of the workbench 1, and a welding gun 103 is arranged above the welding groove 102;

[0052] It also includes:

[0053] A support assembly 2 is arranged on one side and above the workbench 1, and the support assembly 2 comprises a rotating seat 201.

[0054] The rotating seat 201 is rotatably connected to one side of the workbench 1, the rotating seat 201 is hingedly connected to a rotating plate 202 away from one side of the workbench 1, one side of the rotating plate 202 is symmetrically provided with mounting frames 203, both sides of the two mounting frames 203 are fixedly provided with fixed rods 204, and a rotating sleeve 205 is rotatably connected between the two fixed rods 204, and an adjusting rod 206 is slidably connected in the rotating sleeve 205.

[0055] The mounting sleeve 207 is fixedly installed at the top end of the adjusting rod 206, the inside of the mounting sleeve 207 is slidably connected with the moving rod 208, one end of the moving rod 208 is fixedly installed with the fixing sleeve 209, the inside of the fixing sleeve 209 is slidably connected with the movable rod 210, the inside of the movable rod 210 is threadedly connected with the positioning bolt 211 from top to bottom, and the top side of the movable rod 210 is symmetrically installed with the support frame 212;

[0056] The rotating rod 213 is rotatably connected between the two support frames 212, the fixing frame 214 is fixedly installed on the outside of the rotating rod 213, two groups of limiting blocks 217 are symmetrically installed on the two sides of the fixing frame 214, the positioning block 218 is symmetrically installed on the side of the two support frames 212 close to each other and located on the two sides of the two groups of limiting blocks 217, the positioning sleeve 215 is fixedly installed at the top end of the fixing frame 214, and the knurled screw 216 is threadedly connected in the inside of the positioning sleeve 215 from top to bottom;

[0057] The cam 219 is fixedly installed on the outside of the two fixing rods 204, the through slot is formed in the side of the rotating sleeve 205, the positioning plate 220 is arranged in the inside of the through slot, a plurality of rubber protrusions are fixedly installed on the side of the positioning plate 220, and two groups of installation blocks 221 are symmetrically installed on the two sides of the positioning plate 220;

[0058] The guide rod 222 is slidably connected in the inside of the two groups of installation blocks 221, the guide rod 222 is fixedly connected with the rotating sleeve 205, the movable frame 225 is fixedly installed at one end of each of the two installation blocks 221 away from each other, and the movable frame 225 is slidably connected with the cam 219;

[0059] The first magnet block 226 is symmetrically installed on the outside of the rotating sleeve 205 located on the two sides of the two fixing rods 204, the L-shaped frame 227 is symmetrically installed on the two sides of the cam 219, the second magnet block 228 is fixedly installed on the side of the L-shaped frame 227 close to the first magnet block 226, and the second magnet block 228 is attracted to the first magnet block 226.

[0060] Embodiment one: as Figures 1-7As shown, when welding automobile parts, the two parts to be fixed are placed on the workbench 1, so that the butt joint is above and parallel to the welding groove 102, then the worker can move the adjusting rod 206 according to the required welding height, so that the height of the welding gun 103 can be changed, the movable rod 210 can be moved according to the position to be welded, so that the front and back positions of the welding gun 103 can be adjusted, and after adjustment, the positioning bolt 211 can be tightened to position the movable rod 210, then the adjusting rod 206 is rotated, the rotating sleeve 205 rotates on the two fixed rods 204, and after the rotating sleeve 205 rotates, the moving frame 225 rotates, and under the action of the cam 219, the moving frame 225 moves during rotation, and then the movable frame 223 and the mounting block 221 drive the positioning plate 220 to move, so that the rubber block can be closely attached to the adjusting rod 206 after the positioning plate 220 moves, so that the adjusting rod 206 can be reliably positioned, at this time the height of the welding gun 103 is fixed, and the rotating sleeve 205 is perpendicular to the ground, so that the first magnet block 226 and the second magnet block 228 are attracted, the position of the adjusting rod 206 will not change, then the parts can be spot welded or continuously welded by the welding gun 103, when welding the parts, the position of the welding gun 103 drives the moving rod 208 to slide on the mounting sleeve 207, which can ensure that the welding position is in the same straight line, the welding gun 103 can be fixed by the knurled screw 216, the fixing frame 214 can drive the rotating rod 213 to rotate, and the rotating range of the rotating rod 213 is limited by the positioning block 218, so that the inclination angle of the welding gun 103 is small when vertical welding the parts, which can ensure the welding quality, and the angle of the welding gun 103 can be adjusted according to the actual welding condition, when the height of the welding gun 103 needs to be adjusted during vertical welding, the adjusting rod 206 can be directly rotated to separate the first magnet block 226 and the second magnet block 228, so that the adjusting rod 206 loses the limit, the height of the welding gun 103 can be directly adjusted, after adjustment, the adjusting rod 206 is rotated to the vertical state, the adjusting rod 206 can be positioned, so that the welding point can be in the same straight line when welding the parts, which can improve the welding quality, and the height of the welding can be adjusted conveniently and quickly during welding, which improves the convenience and practicality.

[0061] The workbench 1 is fixedly installed with a mounting rod 229 on one side above the rotating seat 201, and a fixed seat 230 is fixedly installed on the end of the mounting rod 229 away from the workbench 1, and a limiting rod 231 is fixedly installed in the fixed seat 230, and a movable block 232 is slidably connected to the outside of the limiting rod 231.

[0062] An inclined annular groove 233 is formed on one side of the rotating plate 202 close to the rotating seat 201 , and a spherical member 234 is slidably connected to the upper portion of the inclined annular groove 233 , and the spherical member 234 is fixedly connected to the movable block 232 .

[0063] Example 2: Figures 3-9 As shown, when welding the bottom of the parts, the fixed sleeve 209 is moved to fit with the mounting sleeve 207, and then the rotating seat 201 is rotated half a circle, so that the welding gun 103 is rotated to the bottom of the workbench 1. The rotating seat 201 drives the rotating plate 202 to rotate during the rotation process. When the rotating plate 202 rotates, the spherical member 234 slides in the inclined ring groove 233. After the rotating plate 202 rotates half a circle, the spherical member 234 can pull the rotating plate 202 to rotate on the rotating seat 201, and then when the welding gun 103 is rotated to the bottom of the workbench 1, the angle between the welding gun 103 and the parts can be reduced, so that when the welding gun 103 is rotated to the bottom of the workbench 1, the angle between the welding gun 103 and the parts can be reduced. During overhead welding of parts, the risk of the molten pool dripping due to gravity is reduced when the welding gun 103 is welding, and the staff does not need to hold the welding gun 103 all the time. During the overhead welding process, since the moving rod 208 is not perpendicular to the ground, the knurled screw 216 on the positioning sleeve 215 can be loosened to make the welding gun 103 active. The staff can control the welding gun 103 to move together with the moving rod 208, and can separately adjust the position of the welding gun 103 on the positioning sleeve 215, which is convenient for spot welding and continuous welding of parts during overhead welding, reduces the work difficulty of the staff during overhead welding, improves welding efficiency, and improves practicality.

[0064] Positioning components 3, arranged on both sides of the rotating base 201;

[0065] The positioning assembly 3 includes fixed blocks 301 symmetrically arranged on both sides of the rotating base 201, and the two fixed blocks 301 are fixedly connected to the workbench 1. A through hole is formed on one side of the two fixed blocks 301. At the same time, a positioning pin 302 is penetrated inside the two fixed blocks 301. A positioning hole 303 is formed on one side of the rotating base 201, and the positioning pin 302 is adapted to be connected to the positioning hole 303.

[0066] A support block 304 is fixedly installed on one side of the fixed block 301, and a positioning rod 305 is slidably connected to the inside of the support block 304, and a positioning groove 307 is provided on the outer side of the positioning pin 302. At the same time, the positioning rod 305 is engaged with the positioning groove 307, and a telescopic spring 306 is sleeved on the outside of the positioning rod 305 on one side of the support block 304, and the two ends of the telescopic spring 306 are fixedly connected to the positioning rod 305 and the support block 304 respectively.

[0067] Example 3: Figures 1-3 and Figure 10As shown, the rotating seat 201 is positioned by the positioning pin 302 before rotation, when it is necessary to rotate the rotating seat 201, the positioning rod 305 can be pulled and the extension spring 306 is stretched, so that the positioning rod 305 is separated from the positioning groove 307, so that the positioning pin 302 can be out of limit, and then the positioning pin 302 can be removed, so that the rotating seat 201 is out of limit, and the rotating seat 201 can be rotated to adjust the welding position, after the rotating seat 201 is rotated, the positioning pin 302 is inserted through the two fixing blocks 301 and the positioning hole 303 on the rotating seat 201, then the positioning rod 305 is pulled, the position of the positioning pin 302 is adjusted so that the positioning rod 305 is aligned with the positioning groove 307, then the positioning rod 305 is loosened, the positioning rod 305 is clamped with the positioning groove 307 under the action of the extension spring 306, so that the positioning pin 302 is positioned, the rotating seat 201 is positioned by the positioning pin 302, and then the rotating seat 201 is conveniently positioned, the welding position is conveniently adjusted, and after adjustment, the rotating seat 201 can be prevented from being accidentally rotated.

[0068] Working principle: when the automobile part semi-automatic electric arc welding device is used, first, according to Figures 1-10As shown, when welding automobile parts, two parts to be fixed are placed on the workbench 1, so that the butt joint is above and parallel to the welding groove 102, then the worker can move the adjusting rod 206 according to the required welding height, so that the height of the welding gun 103 can be changed, the movable rod 210 can be moved according to the welded position, so that the front and back positions of the welding gun 103 can be adjusted, after adjustment, the positioning bolt 211 can be tightened to position the movable rod 210, then the adjusting rod 206 is rotated, so that the rotating sleeve 205 rotates on the two fixed rods 204, after the rotating sleeve 205 rotates, the moving frame 225 rotates, and under the action of the cam 219, the moving frame 225 moves during rotation, and then the movable frame 223 and the mounting block 221 drive the positioning plate 220 to move, so that the rubber block can tightly fit with the adjusting rod 206 after the positioning plate 220 moves, so that the adjusting rod 206 can be reliably positioned, at this time the height of the welding gun 103 is fixed, and the rotating sleeve 205 is perpendicular to the ground, so that the first magnet block 226 and the second magnet block 228 are attracted, the position of the adjusting rod 206 will not change, then the parts can be spot welded or continuously welded by the welding gun 103, when welding the parts, moving the position of the welding gun 103 drives the moving rod 208 to slide on the mounting sleeve 207, which can ensure that the welding position is in the same straight line, the welding gun 103 can be fixed by the knurled screw 216, the fixing frame 214 can drive the rotating rod 213 to rotate, and the rotating range of the rotating rod 213 is limited by the positioning block 218, so that when the parts are vertically welded, the inclination angle of the welding gun 103 is small, which can ensure the welding quality, and the angle of the welding gun 103 can be adjusted according to the actual welding condition, when the height of the welding gun 103 needs to be adjusted during vertical welding, the adjusting rod 206 can be directly rotated, so that the first magnet block 226 and the second magnet block 228 are separated, so that the adjusting rod 206 loses the limit, the height of the welding gun 103 can be directly adjusted, after adjustment, the adjusting rod 206 is rotated to the vertical state, and the adjusting rod 206 can be positioned;

[0069] When welding the butt joint bottom of the part, the moving fixing sleeve 209 is attached to the mounting sleeve 207, and then the rotating seat 201 is rotated by half a circle to make the welding gun 103 rotate to the lower side of the workbench 1. The rotating seat 201 drives the rotating plate 202 to rotate in the rotating process. When the rotating plate 202 rotates, the spherical part 234 slides in the inclined ring groove 233. After the rotating plate 202 rotates by half a circle, the rotating plate 202 can be pulled to rotate on the rotating seat 201 by the spherical part 234. When the welding gun 103 rotates to the lower side of the workbench 1, the included angle between the welding gun 103 and the part can be reduced, so that the risk of molten pool dripping due to gravity during welding of the welding gun 103 is reduced. The staff does not need to hold the welding gun 103 all the time. During the overhead welding process, the knurled screw 216 on the positioning sleeve 215 can be loosened because the moving rod 208 is not perpendicular to the ground, so that the welding gun 103 is in a movable state. The staff can control the welding gun 103 to move together with the moving rod 208, and can separately adjust the position of the welding gun 103 on the positioning sleeve 215. The rotating seat 201 is positioned by the positioning pin 302 before it is not rotated. When the rotating seat 201 needs to be rotated, the positioning rod 305 can be pulled and the extension spring 306 can be stretched, so that the positioning rod 305 is separated from the positioning groove 307, so that the positioning pin 302 can lose the limit. Then the positioning pin 302 can be removed, so that the rotating seat 201 loses the limit and can be rotated to adjust the welding position. After the rotating seat 201 is rotated, the positioning pin 302 is inserted through the two fixing blocks 301 and the positioning hole 303 on the rotating seat 201. Then the positioning rod 305 is pulled to adjust the position of the positioning pin 302 so that the positioning rod 305 is aligned with the positioning groove 307. Then the positioning rod 305 is loosened. The positioning rod 305 is clamped with the positioning groove 307 under the action of the extension spring 306, so that the positioning pin 302 is positioned. The rotating seat 201 is positioned by the positioning pin 302.

[0070] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0071] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.

Claims

1. A semi-automatic arc welding device for automobile parts, comprising a workbench (1), wherein support legs (101) are symmetrically mounted on the bottom of the workbench (1), a welding groove (102) is formed through the top of the workbench (1), and a welding gun (103) is arranged above the welding groove (102); It is characterized by: Also includes: A support assembly (2) is arranged on one side and above the workbench (1), and the support assembly (2) includes a rotating seat (201); Positioning components (3) are arranged on both sides of the rotating seat (201); A rotating seat (201) is rotatably connected to one side of the workbench (1); a rotating plate (202) is hingedly connected to the side of the rotating seat (201) away from the workbench (1); a mounting frame (203) is symmetrically mounted on one side of the rotating plate (202); and two mounting frames (203) are fixedly mounted on adjacent sides thereof with fixed rods (204); a rotating sleeve (205) is rotatably connected between the two fixed rods (204), and an adjusting rod (206) is slidably connected inside the rotating sleeve (205); A mounting sleeve (207) is fixedly mounted on the top of the adjusting rod (206), wherein the interior of the mounting sleeve (207) is slidably connected to a moving rod (208), and a fixing sleeve (209) is fixedly mounted on one end of the moving rod (208), and the interior of the fixing sleeve (209) is slidably connected to a movable rod (210), and a positioning bolt (211) is threadedly connected to the upper interior of the movable rod (210), and a support frame (212) is symmetrically mounted on one side of the top of the movable rod (210); A cam (219) is fixedly mounted on one side of the exterior of the two fixing rods (204), and a through slot is provided through one side of the rotating sleeve (205), and a positioning plate (220) is provided inside the through slot. A plurality of rubber bumps are fixedly mounted on one side of the positioning plate (220), and two sets of mounting blocks (221) are symmetrically mounted on both sides of the positioning plate (220); The interiors of the two groups of mounting blocks (221) are slidably connected to guide rods (222), and the guide rods (222) are fixedly connected to the rotating sleeve (205), and a movable frame (223) is fixedly installed on the side away from the two mounting blocks (221) on each side, and the outer side of the movable frame (223) is slidably connected to a limiting frame (224), and the limiting frame (224) is fixedly connected to the rotating sleeve (205), and a movable frame (225) is fixedly installed on one end of the two movable frames (223) on each side, and the movable frame (225) is slidably connected to the cam (219); The rotating sleeve (205) is symmetrically provided with first magnet blocks (226) on both sides of the two fixed rods (204), and the two mounting frames (203) are symmetrically provided with L-shaped frames (227) on both sides of the cam (219), and a second magnet block (228) is fixedly provided on one side of the L-shaped frame (227) close to the first magnet block (226), and the second magnet block (228) is attracted to the first magnet block (226).

2. The semi-automatic arc welding device for automobile parts according to claim 1, characterized in that: A rotating rod (213) is rotatably connected between the two support frames (212), and a fixing frame (214) is fixedly installed on the outside of the rotating rod (213), and two groups of limit blocks (217) are symmetrically installed on the outside of the rotating rod (213) on both sides of the fixing frame (214), and positioning blocks (218) are symmetrically installed on the side where the two support frames (212) are close to each other and on both sides of the two groups of limit blocks (217), and a positioning sleeve (215) is fixedly installed on the top of the fixing frame (214), and a knurled screw (216) is threadedly connected to the upper part of the inner portion of the positioning sleeve (215).

3. The semi-automatic arc welding device for automobile parts according to claim 1, characterized in that: A mounting rod (229) is fixedly mounted on one side of the workbench (1) above the rotating seat (201), and a fixed seat (230) is fixedly mounted on one end of the mounting rod (229) away from the workbench (1), and a limiting rod (231) is fixedly mounted inside the fixed seat (230), while a movable block (232) is slidably connected to the outside of the limiting rod (231).

4. The semi-automatic arc welding device for automobile parts according to claim 3, characterized in that: An inclined annular groove (233) is provided on one side of the rotating plate (202) close to the rotating seat (201), and a spherical member (234) is slidably connected to the upper portion of the inclined annular groove (233), and the spherical member (234) is fixedly connected to the movable block (232).

5. The semi-automatic arc welding device for automobile parts according to claim 1, characterized in that: The positioning assembly (3) includes fixed blocks (301) symmetrically arranged on both sides of the rotating seat (201), and the two fixed blocks (301) are fixedly connected to the workbench (1), and one side of the two fixed blocks (301) is penetrated by a through hole, and the interior of the two fixed blocks (301) is penetrated by a positioning pin (302), and one side of the rotating seat (201) is penetrated by a positioning hole (303), and the positioning pin (302) is adaptively connected to the positioning hole (303).

6. The semi-automatic arc welding device for automobile parts according to claim 5, characterized in that: A support block (304) is fixedly mounted on one side of the fixed block (301), and a positioning rod (305) is slidably connected inside the support block (304), and a positioning groove (307) is provided on one side of the exterior of the positioning pin (302), and the positioning rod (305) is engaged with the positioning groove (307), and a telescopic spring (306) is sleeved on the exterior of the positioning rod (305) located on one side of the support block (304), and two ends of the telescopic spring (306) are fixedly connected to the positioning rod (305) and the support block (304), respectively.

7. A semi-automatic arc welding method for automobile parts, using the semi-automatic arc welding device for automobile parts according to claim 5, characterized in that: The specific steps are as follows: Step 1: When welding automobile parts, two parts to be fixed are placed on a workbench (1) so that the joint is located above the welding groove (102) and parallel to the welding groove (102). Then, the worker can move the adjustment rod (206) according to the required welding height, so that the height of the welding gun (103) can be changed. The movable rod (210) can be moved according to the welding position, so that the front and rear positions of the welding gun (103) can be adjusted. After the adjustment, the positioning bolt (211) can be tightened to position the movable rod (210). Then, the adjustment rod (206) can be rotated to rotate the rotating sleeve (20 5) Rotate on the two fixed rods (204), and after the rotating sleeve (205) rotates, the movable frame (225) rotates. As the rotating sleeve (205) rotates, the movable frame (225) moves during the rotation process under the action of the cam (219), and then the positioning plate (220) can be driven to move through the movable frame (223) and the mounting block (221), so that after the positioning plate (220) moves, the rubber protrusion can fit tightly with the adjustment rod (206), so that the adjustment rod (206) can be reliably positioned. At this time, the height of the welding gun (103) is fixed, and the rotating sleeve (205) is vertical. On the ground, the first magnet block (226) and the second magnet block (228) are attracted to each other, and the position of the adjustment rod (206) does not change. Then, the parts can be spot welded or continuously welded by the welding gun (103). When welding the parts, the position of the moving welding gun (103) drives the moving rod (208) to slide on the mounting sleeve (207), which can ensure that the welding positions are on the same straight line. The welding gun (103) can be fixed by the knurled screw (216), and the fixing frame (214) can drive the rotating rod (213) to rotate, and the rotation range of the rotating rod (213) is limited by the positioning Due to the restriction of the block (218), when vertical welding is performed on parts, the tilt angle of the welding gun (103) is small, which can ensure the quality of welding, and the angle of the welding gun (103) can be fine-tuned according to the actual welding situation. When the height of the welding gun (103) needs to be adjusted during the vertical welding process, the adjusting rod (206) can be directly rotated to disengage the first magnet block (226) from the second magnet block (228), so that the adjusting rod (206) loses its limit, and the height of the welding gun (103) can be directly adjusted. After the adjustment, the adjusting rod (206) is rotated to a vertical state, and the adjusting rod (206) can be positioned; Step 2: When welding the bottom of the parts, the fixed sleeve (209) is moved to fit with the mounting sleeve (207), and then the rotating seat (201) is rotated half a circle, so that the welding gun (103) is rotated to the bottom of the workbench (1). The rotating seat (201) drives the rotating plate (202) to rotate during the rotation process. When the rotating plate (202) rotates, the spherical member (234) slides in the inclined ring groove (233). After the rotating plate (202) rotates half a circle, the spherical member (234) can pull the rotating plate (202) to rotate on the rotating seat (201), and then the welding gun (103) is rotated to the working table (1). When the table (1) is below the table, the angle between the welding gun (103) and the part can be reduced, so that the risk of the molten pool dripping due to gravity when the welding gun (103) is welded during overhead welding of the part is reduced, and the worker does not need to hold the welding gun (103) all the time. During the overhead welding process, since the moving rod (208) is not perpendicular to the ground, the knurled screw (216) on the positioning sleeve (215) can be loosened to make the welding gun (103) active. The worker can control the welding gun (103) to move together with the moving rod (208) and can adjust the position of the welding gun (103) on the positioning sleeve (215) separately; Step 3: The rotating seat (201) is positioned by the positioning pin (302) before it is rotated. When the rotating seat (201) needs to be rotated, the positioning rod (305) can be pulled and the telescopic spring (306) can be stretched to disengage the positioning rod (305) from the positioning groove (307), so that the positioning pin (302) can lose its limit. Then, the positioning pin (302) can be removed, so that the rotating seat (201) loses its limit. The rotating seat (201) can be rotated to adjust the welding position. After the rotating seat (201) is rotated, the positioning pin (302) is passed through The two fixing blocks (301) are connected to the positioning holes (303) on the rotating seat (201), and then the positioning rod (305) is pulled to adjust the position of the positioning pin (302) so that the positioning rod (305) is aligned with the positioning groove (307). Then, the positioning rod (305) is loosened, and the positioning rod (305) is engaged with the positioning groove (307) under the action of the telescopic spring (306), so that the positioning pin (302) is positioned, and the rotating seat (201) is positioned by the positioning pin (302), thereby facilitating the positioning of the rotating seat (201).

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