Chassis multi-angle welding device for automobile production

Abstract

The invention relates to the technical field of automobile manufacturing, and discloses an automobile production chassis multi-angle welding device which comprises a welding base, a driving gear shaft and a cleaning assembly arranged in the welding base. The cleaning assembly comprises a first toothed bar, a first sliding table, a bevel sliding groove and convex teeth. The first toothed bar is slidably connected to the interior of the welding base and engaged with the driving gear shaft. The rolling brush can conduct rolling sweeping on the upper surface of the welding base in the rotating process, so that disintegrating slag on the upper surface of the welding base is pushed into the guide groove under pushing of rolling of the rolling brush, the disintegrating slag on the welding base is cleaned, and the welding base is in a clean state when the frame is placed on the welding base; and the convex points on the bevel plate can clean the surface of the rolling brush, so that disintegrating slag on the upper surface of the welding base is cleaned, the rolling brush is self-cleaned, and the problem that workers need to clean the rolling brush repeatedly during welding is solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, in particular to a chassis multi-angle welding device for automobile production. Background Art

[0002] The automobile chassis is an important part of the automobile. It supports and installs the automobile engine and its various components and assemblies, forming the overall shape of the automobile, and receives the power of the engine to make the automobile move and ensure normal driving. When producing the automobile chassis, it is necessary to weld the required components on the chassis to the chassis through welding equipment. During the evolution of chassis manufacturing, the arc surface will be added to enhance its impact resistance to ensure the safety of the driver when riding.

[0003] In the existing automobile chassis welding process, the welding robot adjusts the angle to achieve welding work at different positions. During the welding process, the workers will have difficulty observing the welding process because the position where the frame needs to be welded is centered. At the same time, the welding of the inclined surface of the frame requires the robot to constantly adjust the angle, which is not conducive to the efficient welding work.

[0004] During the welding process of the chassis, the high temperature will melt the workpiece and produce metal slag. The slag will remain on the carrier plate, causing the chassis placed on it to be bumped and scratched, and there is a problem that the anti-corrosion paint on the surface of the frame is scratched and falls off, thereby reducing the anti-corrosion performance;

[0005] When welding the frame, flying debris and smoke will be generated between the welding gun and the frame. The smoke will affect the staff's observation of the welding position. If the staff does not adjust the welding position in time, it will affect the aesthetics of the weld mark and the local compressive resistance of the frame. The flying debris will scatter around the welding device and pollute the surrounding environment.

[0006] Therefore, a multi-angle welding device for chassis used in automobile production is proposed. Summary of the invention

[0007] The object of the present invention is to provide a multi-angle welding device for chassis used in automobile production to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-angle welding device for chassis used in automobile production, comprising a welding base, a driving gear shaft and a cleaning assembly arranged inside the welding base, wherein the driving gear shaft is driven to rotate and is connected to the inside of the welding base, and the cleaning assembly comprises a first gear rod, a first sliding platform, an angled slide groove and a convex tooth, the first gear rod is slidably connected to the inside of the welding base and meshes with the driving gear shaft, the first sliding platform is fixedly connected to the top of the first gear rod away from one end of the driving gear shaft, the angled slide groove runs through the inside of the first sliding platform, the convex tooth is fixedly connected to the inner wall of the first sliding platform, the inside of the angled slide groove is slidably connected to a rotating shaft, and two ends of the rotating shaft The ends are symmetrically fixedly connected with a roller brush, and the ends of the roller brushes away from the rotating shaft are slidably connected to the upper surface of the welding base, and the outer wall of the roller brush close to the rotating shaft is provided with a first tooth groove, and the first tooth groove is meshed with the convex tooth, and the interior of the welding base is symmetrically fixedly connected with a rack, and the interior of the first sliding table is rotatably connected with a first gear, and the rack is meshed with the first gear, and a transmission belt is connected between the first gear and the rotating shaft, and the outer wall of the rotating shaft is symmetrically rotatably connected with a ring, and a third spring is fixedly connected to the ring and the inner wall of the first sliding table away from the driving gear shaft. The interior of the welding base is symmetrically provided with guide grooves, and the upper surface of the welding base is symmetrically fixedly connected with angle plates.

[0009] Preferably, the cleaning assembly also includes a support plate, a first spring and a clamp, the support plate is symmetrically slidably connected to the side of the first sliding platform close to the driving gear shaft, the first spring is fixedly connected between the support plate and the inside of the first sliding platform, the side of the support plate close to the driving gear shaft is rotatably connected to the clamp, and a second spring is fixedly connected between the clamp and the support plate.

[0010] Preferably, an inclination adjustment assembly is also provided inside the welding base, and the inclination adjustment assembly includes a gear disc, a screw rod and a convex threaded rod, a second gear rod is slidably connected inside the welding base, the second gear rod is meshed with the driving gear shaft, a second sliding table is fixedly connected to the side of the top of the second gear rod away from the driving gear shaft, the gear disc is rotatably connected to the inside of the second sliding table, the screw rod is fixedly connected to the top of the gear disc, a carrier plate is slidably connected to the inside of the second sliding table, the carrier plate is slidably connected to the outer wall of the screw rod, the convex threaded rod is rotatably connected to the inside of the second sliding table, the convex threaded rod is meshed with the gear disc, and a turning handle is fixedly connected to one end of the convex threaded rod located outside the welding base.

[0011] Preferably, a hydraulic lifting platform is symmetrically and fixedly connected to the top of the welding base, a welding platform is arranged between the hydraulic lifting platforms, an angle adjustment component is arranged inside the welding platform, the angle adjustment component includes a slip ring, a driving wheel and a second tooth groove, the slip ring is slidably connected to the inside of the hydraulic lifting platform, the driving wheel is driven to rotate and is connected to the inside of the slip ring, the second tooth groove is distributed in an annular shape and is opened on the outer wall of the welding platform, and the driving wheel and the second tooth groove are meshed with each other.

[0012] Preferably, an anti-splash component is provided at the bottom of the welding platform, and the anti-splash component includes a fan and a filter plate. The bottom of the welding platform is distributed in a circular array and fixedly connected with round rods, and the outer walls of the round rods are rotatably connected to a welding machine base, and the bottom of the welding machine base is fixedly connected to a welding gun, and the bottom of the welding machine base is fixedly connected to a second protective sleeve, and the outer wall of the welding gun is fixedly connected to a first protective sleeve, the fan is driven to rotate and is connected to the outer wall of the welding gun, and the filter plate is fixedly connected to the top of the first protective sleeve.

[0013] Preferably, when the upper surface of the welding base is located at an end away from the driving gear shaft, the roller brush is not in contact with the upper surface of the welding base and the convex tooth is in meshing with the first tooth groove, the third spring is in a stretched state, and convex points are evenly arranged on the side of the angle plate close to the roller brush. The angle plate is in an angle shape and the height of the angle plate at the angle is consistent with the height of the axis of the roller brush.

[0014] Preferably, a chamfer is provided on one side of the carrier plate close to the driving gear shaft, and one end of the convex threaded rod close to the driving gear shaft is rotatably connected to the inside of the welding base.

[0015] Preferably, an annular air outlet is formed between the inner wall of the second casing and the outer wall of the first casing, the bottom of the annular air outlet is outwardly expanded, and an annular air inlet is formed between the inner wall of the first casing and the outer wall of the welding gun, and the annular air inlet is parallel to the axis of the welding gun.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The clamp rotates around the support plate due to the curvature of the frame surface. At the same time, the support plate will drive the clamp to move relatively on the first sliding table, thereby adjusting the distance between the two clamps so that the clamp can completely fit the frame frame, thereby ensuring that when the curvature of the frame frame is different, the clamp can achieve stable clamping of the frame, avoiding the problem of messy weld lines caused by the shaking of the frame during welding;

[0018] 2. The roller brush will roll and clean the upper surface of the welding base during the rotation process, so that the debris on the upper surface of the welding base is pushed into the inside of the guide groove under the push of the rolling roller brush, thereby cleaning the debris on the welding base, so that the welding base is in a clean state when the frame is placed on the welding base. The convex points on the angle plate will clean the surface of the roller brush, thereby realizing the cleaning of the debris on the upper surface of the welding base and the self-cleaning of the roller brush, avoiding the problem of repeated cleaning by the staff during welding;

[0019] 3. Through the setting of the inclination adjustment component, the frame to be welded can be tilted as a whole, ensuring that the frame can remain stable when welding at a specific angle, reducing the difficulty of welding for the staff and improving welding efficiency;

[0020] 4. When the fan rotates, the smoke generated when the welding gun welds to the frame is extracted into the first protective tube through the annular air inlet, thereby reducing the impact of smoke on visual observation during welding. At the same time, the smoke extracted by the fan will be filtered through the filter plate inside the first protective tube, and then discharged outward at high speed through the annular air outlet between the second protective tube and the first protective tube. The high-speed discharged gas will form an umbrella-shaped wind cover on the outside of the welding gun, avoiding the slag generated when the welding gun welds to the frame from splashing outward, and the waste slag is blocked under the welding gun by the umbrella-shaped wind cover, reducing the pollution to the surrounding environment during welding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 This is an overall schematic diagram of the welding base structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the welding base of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the first sliding platform of the present invention;

[0025] Figure 5 It is a schematic cross-sectional view of the cleaning component structure of the present invention;

[0026] Figure 6 It is a cross-sectional schematic diagram of the ring structure of the present invention;

[0027] Figure 7 It is a partial schematic diagram of the convex tooth structure of the present invention;

[0028] Figure 8 It is an overall schematic diagram of the roller brush structure of the present invention;

[0029] Fig. 9 It is a schematic cross-sectional view of the tilt angle adjustment assembly structure of the present invention;

[0030] Fig.10 It is a schematic cross-sectional view of the angle adjustment assembly structure of the present invention;

[0031] Fig.11 It is a schematic cross-sectional view of the anti-splash component structure of the present invention.

[0032] In the figure:

[0033] 1. Welding base; 2. Driving gear shaft; 3. Hydraulic lifting platform; 4. Welding platform;

[0034] 11. cleaning assembly; 111. first gear rod; 112. first sliding platform; 113. support plate; 114. first spring; 115. clamp; 116. second spring; 117. rack; 118. first gear; 119. rotating shaft; 1110. roller brush; 1111. first tooth groove; 1112. angled slide groove; 1113. convex tooth; 1114. collar; 1115. third spring; 1116. transmission belt; 1117. guide groove; 1118. angled plate;

[0035] 12. Inclination adjustment assembly; 121. Second gear rod; 122. Second sliding platform; 123. Gear plate; 124. Screw rod; 125. Carrying plate; 126. Male threaded rod; 127. Turning handle;

[0036] 41. Angle adjustment assembly; 411. Slip ring; 412. Driving wheel; 413. Second tooth groove;

[0037] 42. Anti-splash assembly; 421. Welding machine base; 422. Welding gun; 423. Fan; 424. First protective tube; 425. Round rod; 426. Filter plate; 427. Second protective tube; 428. Annular air inlet; 429. Annular air outlet; DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiments of the present invention

[0040] See also Figures 1 to 8A multi-angle welding device for chassis used in automobile production comprises a welding base 1, a driving gear shaft 2 and a cleaning assembly 11 arranged inside the welding base 1, the driving gear shaft 2 is driven to rotate and is connected to the inside of the welding base 1, the cleaning assembly 11 comprises a first gear rod 111, a first sliding platform 112, an angled slide groove 1112 and a convex tooth 1113, the first gear rod 111 is slidably connected to the inside of the welding base 1 and meshes with the driving gear shaft 2, the first sliding platform 112 is fixedly connected to the top of the first gear rod 111 away from the end of the driving gear shaft 2, the angled slide groove 1112 runs through the inside of the first sliding platform 112, the convex tooth 1113 is fixedly connected to the inner wall of the first sliding platform 112, the inside of the angled slide groove 1112 is slidably connected to a rotating shaft 119, and roller brushes 1110 are symmetrically fixedly connected to both ends of the rotating shaft 119, and the roller brush 111 0The ends away from the rotating shaft 119 are slidably connected to the upper surface of the welding base 1, the outer wall of the roller brush 1110 near the rotating shaft 119 is provided with a first tooth groove 1111, the first tooth groove 1111 and the convex tooth 1113 are meshed, the interior of the welding base 1 is symmetrically fixedly connected with a rack 117, the interior of the first sliding table 112 is rotatably connected with a first gear 118, the rack 117 and the first gear 118 are meshed, a transmission belt 1116 is transmission-connected between the first gear 118 and the rotating shaft 119, the outer wall of the rotating shaft 119 is symmetrically rotatably connected with a collar 1114, the collar 1114 and the inner wall of the first sliding table 112 away from the driving gear shaft 2 are fixedly connected with a third spring 1115, the interior of the welding base 1 is symmetrically provided with guide grooves 1117, and the upper surface of the welding base 1 is symmetrically fixedly connected with an angle plate 1118.

[0041] The cleaning assembly 11 also includes a support plate 113, a first spring 114 and a clamp 115. The support plate 113 is symmetrically slidably connected to the side of the first sliding platform 112 close to the driving gear shaft 2. The first spring 114 is fixedly connected between the support plate 113 and the inside of the first sliding platform 112. The side of the support plate 113 close to the driving gear shaft 2 is rotatably connected with the clamp 115. The second spring 116 is fixedly connected between the clamp 115 and the support plate 113. When the first sliding platform 112 is located at the end away from the driving gear shaft 2 on the upper surface of the welding base 1, the roller brush 1110 is not in contact with the upper surface of the welding base 1 and the convex tooth 1113 is in a meshing state with the first tooth groove 1111. The third spring 1115 is in a stretched state. The angle plate 1118 is evenly provided with convex points on the side close to the roller brush 1110. The angle plate 1118 is angled and the height of the angle plate 1118 at the angle is consistent with the height of the axis of the roller brush 1110.

[0042] When the embodiment of the present invention is actually used:

[0043] During operation, the staff places the automobile chassis on the welding base 1, and then starts the driving gear shaft 2 and rotates it. After the driving gear shaft 2 rotates, it drives the first gear rods 111 meshed with it on both sides to slide inside the welding base 1. When the first gear rod 111 slides, it drives the first sliding platforms 112 on both sides to move together and approach each other. When the clamps 115 on both sides are in contact with the frame, the first gear rod 111 continues to move, so that the side of the clamp 115 close to the frame will be clamped with the frame. The clamp 115 will rotate around the support plate 113 due to the curvature of the frame surface. At the same time, the support plate 113 will drive the clamp 115 to move relatively on the first sliding platform 112, so as to adjust the distance between the two clamps 115, so that the clamp 115 can be completely attached to the frame frame, so as to ensure that when the curvature of the frame frame is different, the clamp 115 can achieve stable clamping of the frame, so as to avoid the problem of messy weld lines caused by the shaking of the frame during welding.

[0044] When the first sliding platform 112 slides toward the side close to the driving gear shaft 2, the first gear 118 will mesh with the rack 117 and rotate, and the first gear 118 will rotate and drive the rotating shaft 119 to rotate together through the transmission belt 1116. The rotation of the rotating shaft 119 drives the roller brushes 1110 at both ends to rotate. The roller brush 1110 will roll and clean the upper surface of the welding base 1 during the rotation, so that the debris on the upper surface of the welding base 1 is pushed to the inside of the guide groove 1117 under the push of the rolling of the roller brush 1110, thereby cleaning the debris on the welding base 1, so that the welding base 1 is in a clean state when the frame is placed on the welding base 1. When the frame welding is completed and taken out, the staff controls the driving gear shaft 2 to rotate forward and reversely so that the first sliding platform 112 slides back and forth on the welding base 1 once, and when the first sliding platform 112 slides to the side away from the driving gear shaft 2, the roller brush 1110 will be blocked by the angle plate 1118 and cannot move with the first The sliding table 112 moves synchronously. At this time, the first sliding table 112 continues to slide, which will cause the first tooth groove 1111 to move in the direction close to the convex tooth 1113 inside the angle slide groove 1112, and the first tooth groove 1111 is meshed with the convex tooth 1113, so that the roller brush 1110 is lifted and rotated upward under the joint action of the angle slide groove 1112 and the convex tooth 1113. After the roller brush 1110 is lifted, it no longer contacts the upper surface of the welding base 1. The roller brush 1110 rotates in accordance with the angle plate 1118 under the action of the engagement of the first tooth groove 1111 and the convex tooth 1113. At this time, because the convex points on the angle plate 1118 will clean the surface of the roller brush 1110, the debris attached to the surface of the roller brush 1110 will fall downward into the guide groove 1117 during the idling of the roller brush 1110, thereby realizing the cleaning of the debris on the upper surface of the welding base 1 and the self-cleaning of the roller brush 1110, avoiding the problem of repeated cleaning by the staff during welding.

[0045] See also Figures 1 to 9The welding base 1 is also provided with an inclination adjustment assembly 12, which includes a toothed disc 123, a screw rod 124 and a convex threaded rod 126. A second toothed rod 121 is slidably connected to the inside of the welding base 1. The second toothed rod 121 is meshed with the driving gear shaft 2. A second sliding platform 122 is fixedly connected to the top of the second toothed rod 121 away from the driving gear shaft 2. The toothed disc 123 is rotatably connected to the inside of the second sliding platform 122. The screw rod 124 is fixedly connected to the top of the toothed disc 123. The interior of the second sliding table 122 is slidably connected with a carrier plate 125, and the carrier plate 125 is slidably connected to the outer wall of the screw rod 124. The convex threaded rod 126 is rotatably connected to the interior of the second sliding table 122. The convex threaded rod 126 is meshed with the gear plate 123. One end of the convex threaded rod 126 located outside the welding base 1 is fixedly connected to a turning handle 127. A chamfer is provided on one side of the carrier plate 125 close to the driving gear shaft 2, and one end of the convex threaded rod 126 close to the driving gear shaft 2 is rotatably connected to the interior of the welding base 1.

[0046] When the embodiment of the present invention is actually used:

[0047] When the angle welding gun 422 required for frame welding cannot be adjusted, the staff rotates the handle 127, and the rotation of the handle 127 drives the convex threaded rod 126 to rotate together. The rotation of the convex threaded rod 126 causes the toothed disc 123 to mesh and rotate with it. When the toothed disc 123 rotates, it drives the screw rod 124 to rotate together. The rotation of the screw rod 124 drives the carrier plate 125 sliding on its surface to lift upward, so that the entire frame to be welded is tilted, ensuring that the frame can remain stable when welding at a specific angle, reducing the work difficulty of the staff during welding, and improving welding efficiency.

[0048] See also Fig.10 and Fig.11 The top of the welding base 1 is symmetrically fixedly connected with a hydraulic lifting platform 3, a welding platform 4 is arranged between the hydraulic lifting platforms 3, an angle adjustment component 41 is arranged inside the welding platform 4, and the angle adjustment component 41 includes a slip ring 411, a driving wheel 412 and a second tooth groove 413. The slip ring 411 is slidably connected to the inside of the hydraulic lifting platform 3, the driving wheel 412 is driven to rotate and is connected to the inside of the slip ring 411, and the second tooth groove 413 is annularly distributed and opened on the outer wall of the welding platform 4, and the driving wheel 412 and the second tooth groove 413 are meshed;

[0049] A splash-proof assembly 42 is provided at the bottom of the welding platform 4, and the splash-proof assembly 42 includes a fan 423 and a filter plate 426. The bottom of the welding platform 4 is distributed in an annular array and is fixedly connected to round rods 425. The outer walls of the round rods 425 are rotatably connected to a welding machine base 421. A welding gun 422 is fixedly connected to the bottom of the welding machine base 421. A second casing 427 is fixedly connected to the bottom of the welding machine base 421. The outer wall of the welding gun 422 is fixedly connected to a first casing 424. The fan 423 is driven to rotate and is connected to the outer wall of the welding gun 422. The filter plate 426 is fixedly connected to the top of the first casing 424. An annular air outlet 429 is formed between the inner wall of the second casing 427 and the outer wall of the first casing 424. The bottom of the annular air outlet 429 is outwardly expanded, and an annular air inlet 428 is formed between the inner wall of the first casing 424 and the outer wall of the welding gun 422. The annular air inlet 428 is parallel to the axis of the welding gun 422.

[0050] When the embodiment of the present invention is actually used:

[0051] After the frame is fixed, the staff controls the slip ring 411 to slide inside the hydraulic lifting platform 3, controls the driving wheel 412 to rotate, and drives the welding platform 4 to rotate together by engaging with the second tooth groove 413, so that the welding gun 422 under the welding platform 4 can adjust the appropriate angle to weld the frame, and then the electric drive welding machine base 421 rotates to make the welding gun 422 aim at the frame for welding. When the welding gun 422 is welding, the fan 423 starts to rotate synchronously. When the fan 423 rotates, the smoke generated when the welding gun 422 welds the frame is drawn into the first casing 424 through the annular air inlet 428, In order to reduce the impact of smoke on visual observation during welding, the smoke extracted by the fan 423 will be filtered through the filter plate 426 inside the first protective tube 424, and then discharged outward at high speed through the annular air outlet 429 between the second protective tube 427 and the first protective tube 424. At this time, because the bottom end of the annular air outlet 429 is annular and inclined outward, the high-speed discharged gas will form an umbrella-shaped wind cover outside the welding gun 422, thereby preventing the slag generated when the welding gun 422 welds the frame from splashing outward, and the waste slag is blocked under the welding gun 422 by the umbrella-shaped wind cover, thereby reducing the pollution to the surrounding environment during welding.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-angle welding device for chassis used in automobile production, comprising a welding base (1), a driving gear shaft (2) and a cleaning assembly (11) arranged inside the welding base (1), characterized in that: The driving gear shaft (2) is driven to rotate and is connected to the inside of the welding base (1); the cleaning assembly (11) comprises a first gear rod (111), a first sliding platform (112), an angled slide groove (1112) and a convex tooth (1113); the first gear rod (111) is slidably connected to the inside of the welding base (1) and meshes with the driving gear shaft (2); the first sliding platform (112) is fixedly connected to the end of the first gear rod (111) away from the driving gear shaft (2) The top of the welding base (1) is provided with a folded angle slide groove (1112) extending through the interior of the first sliding platform (112), the convex teeth (1113) are fixedly connected to the inner wall of the first sliding platform (112), the interior of the folded angle slide groove (1112) is slidably connected to a rotating shaft (119), the two ends of the rotating shaft (119) are symmetrically fixedly connected to roller brushes (1110), and the ends of the roller brushes (1110) away from the rotating shaft (119) are slidably connected to the upper surface of the welding base (1) The outer wall of the roller brush (1110) is provided with a first tooth groove (1111) on one side close to the rotating shaft (119), the first tooth groove (1111) and the convex tooth (1113) are meshed with each other, a rack (117) is symmetrically fixedly connected inside the welding base (1), a first gear (118) is rotatably connected inside the first sliding platform (112), the rack (117) and the first gear (118) are meshed with each other, the first gear (118) and the rotating shaft (119) are meshed with each other, and the first gear (118) and the rotating shaft (119) are meshed with each other. A transmission belt (1116) is connected between the shafts (119) for transmission, a collar (1114) is symmetrically rotatably connected to the outer wall of the rotating shaft (119), a third spring (1115) is fixedly connected to the collar (1114) and the inner wall of the first sliding platform (112) away from the driving gear shaft (2), a guide groove (1117) is symmetrically opened inside the welding base (1), and a folded angle plate (1118) is symmetrically fixedly connected to the upper surface of the welding base (1).

2. The multi-angle welding device for chassis used in automobile production according to claim 1, characterized in that: The cleaning assembly (11) further comprises a support plate (113), a first spring (114) and a clamp (115); the support plate (113) is symmetrically slidably connected to a side of the first sliding platform (112) close to the driving gear shaft (2); the first spring (114) is fixedly connected between the support plate (113) and the inside of the first sliding platform (112); the side of the support plate (113) close to the driving gear shaft (2) is rotatably connected to the clamp (115); and a second spring (116) is fixedly connected between the clamp (115) and the support plate (113).

3. The multi-angle welding device for chassis used in automobile production according to claim 1, characterized in that: The welding base (1) is also provided with an inclination adjustment assembly (12) inside, and the inclination adjustment assembly (12) comprises a toothed disc (123), a screw rod (124) and a convex threaded rod (126). A second toothed rod (121) is slidably connected inside the welding base (1), and the second toothed rod (121) is meshed with the driving gear shaft (2). A second sliding platform (122) is fixedly connected to the top of the second toothed rod (121) away from the driving gear shaft (2), and the toothed disc (123) is rotatably connected to the second sliding platform (122). The screw rod (124) is fixedly connected to the top of the toothed disc (123), the interior of the second sliding platform (122) is slidably connected to a carrier plate (125), the carrier plate (125) is slidably connected to the outer wall of the screw rod (124), the convex threaded rod (126) is rotatably connected to the interior of the second sliding platform (122), the convex threaded rod (126) is meshed with the toothed disc (123), and one end of the convex threaded rod (126) located outside the welding base (1) is fixedly connected to a turning handle (127).

4. The multi-angle welding device for chassis used in automobile production according to claim 1, characterized in that: A hydraulic lifting platform (3) is symmetrically fixedly connected to the top of the welding base (1); a welding platform (4) is arranged between the hydraulic lifting platforms (3); an angle adjustment component (41) is arranged inside the welding platform (4); the angle adjustment component (41) comprises a slip ring (411), a driving wheel (412) and a second tooth groove (413); the slip ring (411) is slidably connected to the inside of the hydraulic lifting platform (3); the driving wheel (412) is driven to rotate and is connected to the inside of the slip ring (411); the second tooth groove (413) is annularly distributed and opened on the outer wall of the welding platform (4); the driving wheel (412) and the second tooth groove (413) are meshed.

5. The multi-angle welding device for chassis used in automobile production according to claim 4, characterized in that: The bottom of the welding platform (4) is provided with an anti-splash component (42), the anti-splash component (42) includes a fan (423) and a filter plate (426), the bottom of the welding platform (4) is distributed in a circular array and fixedly connected to round rods (425), the outer walls of the round rods (425) are rotatably connected to a welding machine base (421), the bottom of the welding machine base (421) is fixedly connected to a welding gun (422), the bottom of the welding machine base (421) is fixedly connected to a second protective tube (427), the outer wall of the welding gun (422) is fixedly connected to a first protective tube (424), the fan (423) is driven to be rotatably connected to the outer wall of the welding gun (422), and the filter plate (426) is fixedly connected to the top of the first protective tube (424).

6. The multi-angle welding device for chassis used in automobile production according to claim 1, characterized in that: When the first sliding platform (112) is located at an end of the upper surface of the welding base (1) away from the driving gear shaft (2), the roller brush (1110) is not in contact with the upper surface of the welding base (1), and the convex teeth (1113) and the first tooth grooves (1111) are in a meshing state, the third spring (1115) is in a stretched state, and convex points are evenly arranged on a side of the angled plate (1118) close to the roller brush (1110), the angled plate (1118) is angled, and the height of the angled portion of the angled plate (1118) is consistent with the height of the axis of the roller brush (1110).

7. The multi-angle welding device for chassis used in automobile production according to claim 3, characterized in that: A chamfer is provided on one side of the carrier plate (125) close to the driving gear shaft (2), and one end of the convex threaded rod (126) close to the driving gear shaft (2) is rotatably connected to the inside of the welding base (1).

8. The multi-angle welding device for chassis used in automobile production according to claim 5, characterized in that: An annular air outlet (429) is formed between the inner wall of the second protective tube (427) and the outer wall of the first protective tube (424), and the bottom of the annular air outlet (429) is outwardly expanded. An annular air inlet (428) is formed between the inner wall of the first protective tube (424) and the outer wall of the welding gun (422), and the annular air inlet (428) is parallel to the axis of the welding gun (422).

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