Welding clamping structure for automobile steering bracket

Abstract

The utility model relates to the technical field of automobile accessory machining, in particular to a welding clamping structure for an automobile steering support, which comprises a clamping structure body, the clamping structure body comprises a clamping platform, a left clamping unit and a right clamping unit are respectively arranged at two ends of the clamping platform, a central clamping unit is arranged at the central position of the clamping platform, and a clamping groove is formed in the clamping platform. A plurality of groups of auxiliary clamping units are arranged on the two sides of the central clamping unit, the left clamping unit and the right clamping unit are divided into a left clamping unit and a right clamping unit, and a limiting clamping unit is further arranged on the clamping platform. The workpiece is stably, accurately and flexibly clamped, so that the welding quality and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile accessory processing technical field especially, relates to a welding clamping structure for automobile steering support. BACKGROUND

[0002] In the automobile manufacturing industry, steering support as an important part of the vehicle steering system, its welding quality directly affects the safety and stability of the vehicle. However, the traditional welding clamping structure in the process of coping with the welding of automobile steering support, there are many deficiencies.

[0003] The traditional clamping structure is often simple in design, lacks sufficient stability and adjustability. In the welding process, due to the shape and size of the steering support, the traditional clamping structure is difficult to adapt to different specifications of steering support, leading to unstable clamping, prone to shaking or displacement, seriously affecting the welding quality.

[0004] In addition, the adjustment process of the traditional clamping structure is complicated, which needs a lot of time and effort for manual adjustment, reducing the production efficiency. At the same time, the traditional clamping structure is easy to wear and damage in the long-term use process, which needs frequent replacement and maintenance, increasing the production cost.

[0005] Therefore, the market urgently needs a new type of welding clamping structure for automobile steering support to solve the problems of poor stability, inconvenient adjustment and easy wear of the traditional clamping structure. SUMMARY

[0006] To solve the above problems existing in the prior art, the utility model provides a welding clamping structure for automobile steering support to solve the problems of unstable clamping and inconvenient adjustment existing in the prior art.

[0007] To achieve the above purpose, the utility model provides a welding clamping structure for automobile steering support, which comprises a clamping structure body, the clamping structure body comprises a clamping platform, the clamping platform is provided with left and right clamping units at both ends respectively, the center position of the clamping platform is provided with a central clamping unit, the two sides of the central clamping unit are provided with a plurality of groups of auxiliary clamping units, the left and right clamping units are divided into left clamping units and right clamping units, and a limiting clamping unit is further arranged on the clamping platform.

[0008] As a further improvement of the utility model, in order to simplify the manufacturing and assembly process, reduce the production cost, improve the stability and rigidity of the clamping unit, and ensure the effective transmission of clamping force, the left clamping unit and the right clamping unit are the same structure, the left clamping unit comprises a left clamping fixed base, a left clamping support column is connected and arranged on the left clamping fixed base, and a left clamping mounting block is fixedly arranged above the left clamping support column.

[0009] As a further improvement of the utility model, in order to be able to adapt to different sizes and shapes of automobile steering support, realize flexible clamping and quick positioning of the support, further enhance the stability of clamping, prevent the support from shaking during the welding process, the left clamping mounting block is provided with two groups, the left clamping mounting block is arranged at a certain distance on the left clamping support column, one side of each group of left clamping mounting block is provided with a clamping telescopic cylinder, the other side is provided with a clamping butt joint block, each group of clamping butt joint block is equipped with a limiting column.

[0010] As a further improvement of the utility model, in order to make the workpiece pressing plate can be adjusted according to the specific size and shape of automobile steering support, improve the versatility and adaptability of the clamping structure, the left clamping support column is also provided with a clamping adjustment cylinder, the top side of the left clamping support column is provided with a cylinder fixing table, the clamping adjustment cylinder is provided with a clamping connecting block, the clamping connecting block is connected with the cylinder fixing table through a clamping rotating shaft, one side of the clamping connecting block is connected with the power output end of the clamping adjustment cylinder, the other side is connected with a corner of the cylinder fixing table through the clamping rotating shaft, the clamping connecting block is connected with a workpiece pressing plate, and the workpiece pressing plate is matched with the left clamping mounting block.

[0011] As a further improvement of the utility model, in order to make the pressing plate closely fit the surface of the support, improve the stability and reliability of clamping, the overall structure of the workpiece pressing plate is U-shaped, the distance between the U-shaped notches of the workpiece pressing plate is the same as the distance between the two left clamping mounting blocks, and the side of the workpiece pressing plate close to the left clamping mounting block is provided with a workpiece pressing block.

[0012] As a further improvement of the utility model, in order to provide additional support and clamping force for automobile steering support, ensure the stability of the support during the welding process, the central clamping unit includes a central clamping support column, the top of the central clamping support column is provided with a central clamping table, one side of the central clamping table is provided with a central butt joint block, one side of the central clamping table is provided with a central clamping cylinder, the central clamping cylinder is provided with a central pressing block, the central pressing block is provided with a central rotating shaft, one side of the central pressing block is connected with the power output end of the central clamping cylinder in the axial direction, and the other side is connected with the central clamping table through the central rotating shaft.

[0013] As a further improvement of the utility model, in order to provide additional clamping point and support force for the automobile steering bracket, further enhance the stability and reliability of the clamping structure, the auxiliary clamping unit includes auxiliary clamping support column, the auxiliary clamping support column is provided with auxiliary clamping mounting plate, one corner of the top of the auxiliary clamping mounting plate is provided with L-shaped notch, the both sides of the L-shaped notch are provided with auxiliary butt joint block, the auxiliary clamping mounting plate is provided with auxiliary clamping cylinder, the power output end of the auxiliary clamping cylinder is connected with L-shaped strip-shaped pressing plate, the L-shaped strip-shaped pressing plate end is provided with auxiliary pressing block, the both sides of the L-shaped strip-shaped pressing plate are provided with auxiliary fixed plate and auxiliary clamping mounting plate connection, the both sides of the auxiliary fixed plate are provided with auxiliary rotating shaft, and the L-shaped strip-shaped pressing plate swings through auxiliary rotating shaft at a certain angle.

[0014] As a further improvement of the utility model, in order to effectively limit the displacement and shaking of the automobile steering bracket during welding, ensure the accuracy and quality of welding, the limiting clamping unit includes limiting clamping support column, the top of the limiting clamping support column is provided with L-shaped reinforcing rib, the upper side of the L-shaped reinforcing rib is connected with limiting clamping groove, the lower side of the L-shaped reinforcing rib is provided with limiting telescopic cylinder, the output end of the limiting telescopic cylinder is provided with limiting clamping plate, and the limiting clamping plate is axially connected with the L-shaped reinforcing rib.

[0015] When the utility model works, ensure that the left and right clamping units, the central clamping unit, the auxiliary clamping unit and the limiting clamping unit are in the initial inactive state, the cylinder does not exert pressure, each component is connected and fastened, the automobile steering bracket is placed in the central position of the clamping platform, and the approximate position of the bracket is aligned with the central clamping unit, so that subsequent clamping operation is facilitated.

[0016] The clamping telescopic cylinder of the left clamping unit and the right clamping unit is started, the clamping telescopic cylinder drives the clamping butt joint block to move, the limiting column is connected with the butt joint hole on the steering bracket, and limiting is carried out;The clamping adjustment cylinder is started, the clamping adjustment cylinder drives the clamping connecting block and the workpiece pressing plate to swing through the clamping rotating shaft, the overall structure of the workpiece pressing plate is U-shaped, the distance between the U-shaped notches is the same as the distance between the two left clamping mounting blocks, and uniform clamping of the bracket is ensured.Workpiece pressing block is arranged on the side of the workpiece pressing plate close to the left clamping mounting block, which further enhances the clamping effect, the clamping butt joint block and the workpiece pressing plate apply appropriate clamping force to the steering bracket, and the two sides of the steering bracket are preliminarily fixed.

[0017] The central clamping unit is installed at the central lower position of the clamping platform, ready to clamp the central part of the automobile steering support, the central clamping cylinder is started, the power output end of the central clamping cylinder is connected with the central pressing block in the axial direction, the central pressing block is pushed to move towards the central part of the support, the central pressing block can swing in angle through the central rotating shaft, the central pressing block is in contact with the central part of the support through the central butt joint block during the movement, and appropriate clamping force is applied to fix the central part of the support, and the central clamping cylinder keeps the continuous pressure on the central pressing block during the welding process, so that the stable clamping of the central part of the support is ensured.

[0018] The auxiliary clamping unit is installed at the appropriate position of the clamping platform, ready to clamp other parts of the automobile steering support, when auxiliary clamping of the automobile steering support is needed, the auxiliary clamping cylinder is started, the L-shaped strip pressing plate is pushed to move forward, the end of the L-shaped strip pressing plate is provided with an auxiliary pressing block for applying clamping force to the support, the L-shaped strip pressing plate is in contact with the specific part of the support through the auxiliary butt joint block during the movement, and appropriate clamping force is applied to fix the part of the support. The L-shaped strip pressing plate can swing in a certain angle through the auxiliary rotating shaft, which makes the auxiliary clamping unit adapt to the small angle change or shape difference of the support, ensures the tightness and stability of the clamping, and the auxiliary clamping cylinder keeps the continuous pressure on the L-shaped strip pressing plate during the welding process, so that the stable clamping of the specific part of the support is ensured.

[0019] The limiting clamping unit is installed at the specific position of the clamping platform, ready to limit and clamp a part of the automobile steering support, the limiting clamping support column serves as the basis of the whole unit and provides stable support, the automobile steering support is placed into the clamping structure, and the part needing limiting and clamping is aligned with the limiting clamping slot, the limiting clamping slot and the limiting clamping block are matched with each other to limit and support the part of the steering support.

[0020] The utility model discloses the beneficial effect lies in:

[0021] Stability and accuracy are improved:

[0022] By setting left and right clamping units, a central clamping unit and a plurality of groups of auxiliary clamping units, the automobile steering support can be fixed in all directions, so that displacement or deformation of the support during welding is avoided, and the stability and accuracy of welding are improved.

[0023] Strong adaptability:

[0024] The left clamping unit and the right clamping unit are the same in structure, are provided with clamping telescopic cylinders and clamping butt joint blocks, can be adjusted according to steering supports of different sizes, and the adaptability of the clamping structure is enhanced.

[0025] The design of the auxiliary clamping unit also allows flexible adjustment according to specific requirements, further improving the versatility of the clamping structure.

[0026] Controllable clamping force:

[0027] The design of the clamping adjustment cylinder and the clamping rotating shaft allows the workpiece pressing plate to adjust the clamping force according to actual needs, ensuring the stability of clamping and avoiding damage to the workpiece due to excessive clamping.

[0028] The cylinders in the central clamping unit and the auxiliary clamping unit also provide similar clamping force control functions.

[0029] Convenient operation:

[0030] Each clamping unit is powered by a cylinder, achieving automatic or semi-automatic clamping operation, improving work efficiency and reducing labor intensity of the operator.

[0031] The design of the limiting clamping unit, such as the limiting telescopic cylinder and the limiting clamping plate, makes it more convenient and safe to clamp and release the workpiece.

[0032] Compact and stable structure:

[0033] The clamping structure body adopts an integrated design, with reasonable layout between the clamping units and compact structure, saving space and ensuring overall stability.

[0034] The design of the L-shaped reinforcing rib and the limiting clamping slot enhances the load-bearing capacity and stability of the clamping structure. BRIEF DESCRIPTION OF DRAWINGS

[0035] To facilitate understanding by those skilled in the art, the present utility model is further described below in conjunction with the drawings:

[0036] Fig. 1 The structure of the present utility model is shown in the figure.

[0037] Fig. 2 The structure of the left clamping unit is shown in the figure.

[0038] Fig. 3 The side view structure of the left clamping unit is shown in the figure.

[0039] Fig. 4 The structure of the central clamping unit is shown in the figure.

[0040] Fig. 5 The structure of the auxiliary clamping unit is shown in the figure.

[0041] Fig. 6 The structure of the limiting clamping unit is shown in the figure.

[0042] Wherein, 1 clamping platform, 2 left and right clamping unit, 3 central clamping unit, 301 central clamping support column, 302 central clamping table, 303 central butt block, 304 central clamping cylinder, 305 central pressing block, 306 central rotating shaft, 4 auxiliary clamping unit, 401 auxiliary clamping support column, 402 auxiliary clamping mounting plate, 403 L-shaped notch, 404 auxiliary butt block, 405 auxiliary clamping cylinder, 406 L-shaped strip-shaped pressing plate, 407 auxiliary pressing block, 408 auxiliary fixed plate, 409 auxiliary rotating shaft, 5 left clamping unit, 501 left clamping fixed base, 502 left clamping support column, 503 left clamping mounting block, 504 clamping telescopic cylinder, 505 clamping butt block, 506 limit column, 507 clamping adjustment cylinder, 508 cylinder fixed table, 509 clamping connecting block, 510 clamping rotating shaft, 511 workpiece pressing plate, 512 workpiece pressing block, 6 right clamping unit, 7 limit clamping unit, 701 limit clamping support column, 702 L-shaped reinforcing rib, 703 limit clamping slot, 704 limit telescopic cylinder, 705 limit clamping plate. DETAILED DESCRIPTION

[0043] In order to make the person skilled in the art better understand the technical solutions in the present application, the following will combine with the drawings of the present application to make the specific description. Figs. 1-6 The utility model is further described, and the following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0044] As Figs. 1-6 A kind of welding clamping structure for automobile steering support shown in the figure, including clamping structure ontology, the clamping structure ontology includes clamping platform 1, the clamping platform 1 two ends are provided with left and right clamping unit 2 respectively, the center position of the clamping platform 1 is provided with central clamping unit 3, the two sides of the central clamping unit 3 are provided with several groups of auxiliary clamping unit 4, the left and right clamping unit 2 are divided into left clamping unit 5 and right clamping unit 6, the clamping platform 1 is also provided with limit clamping unit 7.

[0045] The left clamping unit 5 and right clamping unit 6 are same in structure, the left clamping fixed base 501 is connected and provided on the left clamping fixed base 501, the left clamping mounting block 503 is fixedly provided above the left clamping support column 502.

[0046] The left clamping mounting block 503 is provided with two groups, the left clamping mounting block 503 is arranged at a certain distance on the left clamping support column 502, one side of each group of the left clamping mounting block 503 is provided with clamping telescopic cylinder 504, and the other side is provided with clamping butt block 505, each group of the clamping butt block 505 is equipped with limit column 506.

[0047] The left clamping support column 502 is also provided with a clamping adjustment cylinder 507, and the top side of the left clamping support column 502 is provided with a cylinder fixing table 508 in a matched mode. The clamping adjustment cylinder 507 is provided with a clamping connecting block 509 in a matched mode, and the clamping connecting block 509 is connected with the cylinder fixing table 508 through a clamping rotating shaft 510. One side of the clamping connecting block 509 is connected with the power output end of the clamping adjustment cylinder 507 in an axial mode, and the other side is connected with a corner of the cylinder fixing table 508 through the clamping rotating shaft 510. The clamping connecting block 509 is connected with a workpiece pressing plate 511, and the workpiece pressing plate 511 is provided in a matched mode with the left clamping mounting block 503.

[0048] The workpiece pressing plate 511 is provided in a U-shaped mode, and the distance between the U-shaped notches of the workpiece pressing plate 511 is the same as the distance between the two left clamping mounting blocks 503. The side of the workpiece pressing plate 511 close to the left clamping mounting block 503 is provided with a workpiece pressing block 512.

[0049] The central clamping unit 3 comprises a central clamping support column 301, and the top of the central clamping support column 301 is provided with a central clamping table 302. One side of the central clamping table 302 is provided with a central butt joint block 303 in a protruding mode. One side of the central clamping table 302 is provided with a central clamping cylinder 304, and the central clamping cylinder 304 is provided with a central pressing block 305 in a matched mode. The central pressing block 305 is provided with a central rotating shaft 306 in a matched mode. One side of the central pressing block 305 is connected with the power output end of the central clamping cylinder 304 in an axial mode, and the other side is connected with the central clamping table 302 through the central rotating shaft 306.

[0050] The auxiliary clamping unit 4 comprises an auxiliary clamping support column 401, and the auxiliary clamping support column 401 is provided with an auxiliary clamping mounting plate 402. One corner of the top of the auxiliary clamping mounting plate 402 is provided with an L-shaped notch 403. The L-shaped notch 403 is provided with auxiliary butt joint blocks 404 on both sides. The auxiliary clamping mounting plate 402 is provided with an auxiliary clamping cylinder 405. The power output end of the auxiliary clamping cylinder 405 is connected with an L-shaped strip-shaped pressing plate 406. The L-shaped strip-shaped pressing plate 406 is provided with an auxiliary pressing block 407 at the end. The L-shaped strip-shaped pressing plate 406 is provided with auxiliary fixing plates 408 on both sides and is connected with the auxiliary clamping mounting plate 402. Auxiliary rotating shafts 409 are provided in a matched mode on both sides of the auxiliary fixing plates 408. The L-shaped strip-shaped pressing plate 406 swings at a certain angle through the auxiliary rotating shafts 409.

[0051] The limiting clamping unit 7 comprises a limiting clamping support column 701, the top side of the limiting clamping support column 701 is provided with an L-shaped reinforcing rib 702, the upper side of the L-shaped reinforcing rib 702 is connected and provided with a limiting clamping clamping groove 703, the lower side of the L-shaped reinforcing rib 702 is provided with a limiting telescopic cylinder 704, the output end of the limiting telescopic cylinder 704 is matched and provided with a limiting clamping plate 705, and the limiting clamping plate 705 is axially connected with the L-shaped reinforcing rib 702.

[0052] In the working process of the utility model, the left and right clamping units 2, the central clamping unit 3, the auxiliary clamping unit 4 and the limiting clamping unit 7 are in the initial inactivated state, the cylinder does not exert pressure, and the components are connected and fastened, so that the automobile steering support is placed at the central position of the clamping platform 1, the approximate position of the support is aligned with the central clamping unit 3, and subsequent clamping operation is facilitated.

[0053] The clamping telescopic cylinder 504 of the left clamping unit 5 and the right clamping unit 6 is started, the clamping telescopic cylinder 504 drives the clamping butt joint block 505 to move, the limiting column 506 is butted with the butt joint hole on the steering support, and limiting is carried out; the clamping adjustment cylinder 507 is started, the clamping adjustment cylinder 507 drives the clamping connecting block 509 and the workpiece pressing plate 511 to swing through the clamping rotating shaft 510, the overall structure of the workpiece pressing plate 511 is U-shaped, the distance between the U-shaped notches is same as the distance between the two left clamping mounting blocks 503, and uniform clamping of the support is ensured. The workpiece pressing plate 511 is provided with a workpiece pressing block 512 on the side close to the left clamping mounting block 503, the clamping effect is further enhanced, the clamping butt joint block 505 and the workpiece pressing plate 511 apply appropriate clamping force to the steering support, and both sides of the steering support are preliminarily fixed.

[0054] The central clamping unit 3 is installed at the central lower position of the clamping platform 1 and is ready to clamp the central part of the automobile steering support, the central clamping cylinder 304 is started, the power output end of the central clamping cylinder 304 is axially connected with the central pressing block 305, the central pressing block 305 is driven to move towards the central part of the support, the central pressing block 305 can swing in angle through the central rotating shaft 306, the central pressing block is butted with the central part of the support in the moving process and applies appropriate clamping force, and the central part of the support is fixed, in the welding process, the central clamping cylinder 304 keeps the continuous pressure on the central pressing block 305, and stable clamping of the central part of the support is ensured.

[0055] The auxiliary clamping unit 4 is installed at a proper position of the clamping platform 1, and is prepared to clamp other parts of the automobile steering support, when the auxiliary clamping is needed, the auxiliary clamping cylinder 405 is started, the L-shaped strip pressing plate 406 is pushed to move forward, the end of the L-shaped strip pressing plate 406 is provided with an auxiliary pressing block 407, which is used to apply clamping force to the support, during the movement of the L-shaped strip pressing plate 406, the auxiliary butt joint block 404 is butt jointed with a specific part of the support, and appropriate clamping force is applied to fix the part of the support. The L-shaped strip pressing plate 406 can swing by a certain angle through the auxiliary rotating shaft 409, which makes the auxiliary clamping unit 4 can adapt to the small angle change or shape difference of the support, and ensures the tightness and stability of clamping, during the welding process, the auxiliary clamping cylinder 405 keeps the continuous pressure on the L-shaped strip pressing plate 406, and ensures the stable clamping of the specific part of the support.

[0056] The limiting clamping unit 7 is installed at a specific position of the clamping platform 1, and is prepared to limit and clamp a part of the automobile steering support, the limiting clamping support column 701 serves as the basis of the whole unit and provides stable support, the automobile steering support is placed into the clamping structure, and the part needing limiting and clamping of the automobile steering support is aligned with the limiting clamping slot 703, the limiting clamping support column 701 provides stable support, the limiting telescopic cylinder 704 drives the limiting clamping support column 701 to swing by an angle on the L-shaped reinforcing rib 702, and the limiting clamping slot 703 and the limiting clamping support column 701 are matched with each other to limit and support the part of the automobile steering support.

[0057] The utility model is not limited to the above-mentioned embodiment, on the basis of the technical scheme disclosed in the utility model, the technical personnel in the art can make some replacement and deformation to some technical features according to the disclosed technical content without creative labor, and these replacement and deformation are within the protection scope of the utility model.

Claims

1. A welding clamp structure for a steering bracket of an automobile, comprising a clamp structure body, characterized by, The clamping structure body comprises a clamping platform (1), left and right clamping units (2) are arranged at both ends of the clamping platform (1) respectively, a central clamping unit (3) is arranged at the center position of the clamping platform (1), a plurality of groups of auxiliary clamping units (4) are arranged at both sides of the central clamping unit (3), the left and right clamping units (2) are divided into left clamping units (5) and right clamping units (6), and a limiting clamping unit (7) is further arranged on the clamping platform (1).

2. The welding clamping structure for a steering bracket of an automobile according to claim 1, characterized in that, The left clamping unit (5) and the right clamping unit (6) are the same in structure, the left clamping unit (5) comprises a left clamping fixed base (501), a left clamping support column (502) is connected and arranged on the left clamping fixed base (501), and a left clamping mounting block (503) is fixedly arranged above the left clamping support column (502).

3. The welding clamp structure for a steering bracket of an automobile according to claim 2, characterized in that The left clamping mounting block (503) is provided in two groups, the left clamping mounting blocks (503) are arranged at intervals on the left clamping support column (502), one side of each group of left clamping mounting blocks (503) is provided with a clamping telescopic cylinder (504), and the other side is provided with a clamping butt joint block (505), and each group of clamping butt joint blocks (505) is provided with a limiting column (506).

4. The welding clamp structure for a steering bracket of an automobile according to claim 3, characterized in that The left clamping support column (502) is further provided with a clamping adjusting cylinder (507), a cylinder fixing table (508) is arranged on one side of the top of the left clamping support column (502) in a matched mode, the clamping adjusting cylinder (507) is provided with a clamping connecting block (509) in a matched mode, the clamping connecting block (509) is connected with the cylinder fixing table (508) and is provided with a clamping rotating shaft (510), one side of the clamping connecting block (509) is connected with the power output end of the clamping adjusting cylinder (507) in an axial mode, the other side is connected with a corner of the cylinder fixing table (508) through the clamping rotating shaft (510), and the clamping connecting block (509) is connected with a workpiece pressing plate (511) and is arranged in a matched mode with the left clamping mounting block (503).

5. The welding clamp structure for a steering bracket of an automobile according to claim 4, characterized in that The workpiece pressing plate (511) is arranged in a U-shaped mode as a whole, the distance between the U-shaped notches of the workpiece pressing plate (511) is the same as the distance between the two left clamping mounting blocks (503), and the workpiece pressing plate (511) is provided with a workpiece pressing block (512) on the side close to the left clamping mounting block (503).

6. The welding clamping structure for a steering bracket of an automobile according to claim 1, characterized by The central clamping unit (3) comprises a central clamping support column (301), the top of the central clamping support column (301) is provided with a central clamping table (302), one side of the central clamping table (302) is provided with a central butt joint block (303), one side of the central clamping table (302) is provided with a central clamping air cylinder (304), the central clamping air cylinder (304) is provided with a central pressing block (305) in a matched mode, the central pressing block (305) is provided with a central rotating shaft (306) in a matched mode, one side of the central pressing block (305) is connected with the power output end of the central clamping air cylinder (304) in an axial mode, and the other side is connected with the central clamping table (302) in a rotary mode through the central rotating shaft (306).

7. The welding clamping structure for a steering bracket of an automobile according to claim 1, characterized by The auxiliary clamping unit (4) comprises an auxiliary clamping support column (401), the auxiliary clamping support column (401) is provided with an auxiliary clamping mounting plate (402), one corner of the top of the auxiliary clamping mounting plate (402) is provided with an L-shaped notch (403), the two sides of the L-shaped notch (403) are provided with auxiliary butt joint blocks (404), the auxiliary clamping mounting plate (402) is provided with an auxiliary clamping air cylinder (405), the power output end of the auxiliary clamping air cylinder (405) is connected with an L-shaped strip-shaped pressing plate (406), the L-shaped strip-shaped pressing plate (406) is provided with an auxiliary pressing block (407) at the end, the two sides of the L-shaped strip-shaped pressing plate (406) are provided with auxiliary fixing plates (408) connected with the auxiliary clamping mounting plate (402), the two sides of the auxiliary fixing plates (408) are provided with auxiliary rotating shafts (409) in a matched mode, and the L-shaped strip-shaped pressing plate (406) swings at a certain angle through the auxiliary rotating shafts (409).

8. The welding clamping structure for a steering bracket of an automobile according to claim 1, characterized by The limiting clamping unit (7) comprises a limiting clamping support column (701), one side of the top of the limiting clamping support column (701) is provided with an L-shaped reinforcing rib (702), the upper side of the L-shaped reinforcing rib (702) is connected with a limiting clamping clamping groove (703), the lower side of the L-shaped reinforcing rib (702) is provided with a limiting telescopic air cylinder (704), the output end of the limiting telescopic air cylinder (704) is provided with a limiting clamping plate (705) in a matched mode, and the limiting clamping plate (705) is connected with the L-shaped reinforcing rib (702) in an axial mode.

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