A welding tool for a steering column adjusting bracket

Abstract

The utility model discloses a kind of steering column adjusting support welding tool, including workbench, X direction fixed cylinder, Y direction fixed cylinder, Z direction fixed cylinder and compacting device, the limiting seat for placing adjusting support is equipped on the workbench, the X direction fixed cylinder is used to clamp or loosen upper support, the Y direction fixed cylinder is used to clamp or loosen lower support, the Z direction fixed cylinder is used to the lower support is fixed on the limiting seat by resistance, the compacting device is used to the upper support is fixed on the limiting seat by resistance.The utility model provides a kind of steering column adjusting support welding tool, by the multidimensional clamping operation of limiting seat and X, Y, Z direction fixed cylinder and compacting device, ensure the accurate positioning and stability of steering column adjusting support in the welding process, improve welding quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile welding fixture, more particularly to a steering column adjusting support welding tool. BACKGROUND

[0002] In the automobile safety protection technology, the application of the steering column crash function aims to reduce the harm to the driver in traffic accidents. When the front of the vehicle collides, the driver will be impacted forward due to inertia, and then violently contact with the steering wheel, which may cause serious personal injury. Therefore, automobile manufacturers design the steering column crash function, which makes the steering column collapse when it bears impact, and drives the steering wheel to move forward a certain distance, thereby reducing the intensity of impact force transmitted to the driver. This design can absorb part of the energy at the critical moment of the accident, relieve the impact of the collision, and effectively reduce the degree of injury.

[0003] As shown in Figure 1 The collapse function depends on the design of the steering column adjusting support. The support structure is usually composed of an upper support and a lower support, wherein the upper support is fixedly connected with the lower support by welding, and the lower support is connected with the steering column. When the collision occurs, the impact force of the driver is transmitted to the steering column through the steering wheel, which makes the upper support separate from the vehicle body mounting point, drives the steering column to collapse as a whole, and thus plays a protective role.

[0004] However, the welding process of the support is crucial. If the welding positioning is not accurate during the manufacturing process, the quality and strength of the support will be affected, which will weaken the effectiveness of the steering column collapse function and endanger the safety performance of the vehicle. SUMMARY

[0005] The utility model aims at solving one of the technical problems in the related art to some extent. Therefore, the utility model provides a steering column adjusting support welding tool, which realizes accurate positioning and stability of the steering column adjusting support in the welding process through multi-dimensional clamping operation of the limiting seat and X, Y and Z direction fixed cylinders and the pressing device, and improves the welding quality.

[0006] The technical scheme adopted by the utility model is as follows: a steering column adjusting support welding tool is provided, which comprises a workbench, X direction fixed cylinders, Y direction fixed cylinders, Z direction fixed cylinders and a pressing device. The workbench is provided with a limiting seat for placing the adjusting support. The X direction fixed cylinders are used for clamping or loosening the upper support. The Y direction fixed cylinders are used for clamping or loosening the lower support. The Z direction fixed cylinders are used for tightly fixing the lower support on the limiting seat. The pressing device is used for tightly fixing the upper support on the limiting seat.

[0007] With the above structure, the positioning precision and welding quality in the welding process of the steering column adjusting support can be significantly improved. In the design, the limiting seat on the workbench serves as the core positioning reference, ensuring the accurate placement of the upper support and the lower support before welding. Through the multidimensional clamping operation of the X, Y and Z direction fixed cylinders, each part of the adjusting support can be stably fixed during the welding process, avoiding the welding error caused by displacement or misplacement. This accurate multidirectional clamping and positioning method ensures the reliability of the welding points.

[0008] The pressing device further improves the stability of the fixed adjusting support. During the welding process, the upper support is tightly pressed on the limiting seat, reducing the welding deviation caused by the loosening of the workpiece. The core advantage of this process design is to improve the assembly precision of the support, thereby effectively ensuring the integrity and structural strength of the welding, and providing a reliable structural basis for the realization of the crash collapse function of the steering column.

[0009] According to an embodiment of the present application, the X direction fixed cylinder, the Y direction fixed cylinder and the Z direction fixed cylinder are fixedly installed above the table top of the workbench.

[0010] According to an embodiment of the present application, the pressing device comprises a cylinder body, a pressing arm and a limiting sleeve, the pressing arm is fixedly connected with the piston rod of the cylinder body, the limiting sleeve is fixedly installed on the cylinder body, and the piston rod and the inner channel of the limiting sleeve are in sliding fit; when the pressing device is clamped, the pressing arm abuts against the upper end of the limiting sleeve, at this time, the pressing arm presses down the upper support, so that it is tightly fixed on the limiting seat.

[0011] According to an embodiment of the present application, the lower support is riveted with a connecting nut, and the limiting seat is provided with a first positioning column corresponding to the position of the connecting nut; during the welding process, the first positioning column not only plays a role of fixed support, but also ensures the accurate positioning of the connecting nut, preventing displacement during operation.

[0012] According to an embodiment of the present application, the upper support is provided with a connecting hole, and the limiting seat is provided with a second positioning column corresponding to the position of the connecting hole; the second positioning column is tightly connected with the connecting hole, which not only ensures the position fixation of the upper support during the welding process, but also avoids the possible horizontal or vertical displacement during the welding process.

[0013] According to an embodiment of the present application, the Z direction fixed cylinder comprises a column and a clamping jaw slidingly installed on the column, and the clamping jaw can reciprocate along the vertical direction relative to the column.

[0014] According to an embodiment of the present application, the column is provided with a sliding rail, and the clamping jaw is provided with a sliding block in sliding fit with the sliding rail.

[0015] According to one embodiment of the utility model, the clamping jaw comprises a lower pressing block, a lateral support block and an outer pressing block, the lower end of the lower pressing block is used for abutting against the inner top of the lower support, the lateral support block is fixedly installed on the two sides of the lower pressing block and is used for abutting against the inner side wall of the lower support, and the outer pressing block is fixedly installed on the outer side of the lateral support block and is used for abutting against the outer side wall of the lower support, the lower end of the lower pressing block is in close contact with the inner top of the lower support, vertical pressure is provided, and it is ensured that the support does not move up and down during welding, the lateral support block is fixed on the two sides of the lower pressing block and is in close contact with the inner side wall of the lower support, lateral displacement is effectively prevented, and the lateral stability of the support is further improved, and the outer pressing block is fixed on the outer side of the lateral support block and abuts against the outer side wall of the lower support, external support is provided, and external deformation of the support during welding is prevented, the design realizes multi-point clamping of the inner and outer walls and the top of the lower support, the overall structural stability during welding is effectively improved, and welding precision is ensured.

[0016] According to one embodiment of the utility model, the lateral support block is provided with a first guide surface, the first guide surface is used for guiding the lower support to enter the gap between the lateral support block and the outer pressing block, the first guide surface effectively reduces resistance during positioning of the lower support, the lower support can quickly and accurately enter a predetermined position, installation speed is accelerated, and operation convenience is improved, meanwhile, the first guide surface helps to avoid scratches or deformation of the lower support due to collision or friction during installation, and the integrity of the appearance and structure of the support is ensured.

[0017] According to one embodiment of the utility model, the outer pressing block is provided with a second guide surface, the second guide surface is used for guiding the lower support to enter the gap between the lateral support block and the outer pressing block, the second guide surface effectively reduces resistance during positioning of the lower support, the lower support can quickly and accurately enter a predetermined position, installation speed is accelerated, and operation convenience is improved, meanwhile, the second guide surface helps to avoid scratches or deformation of the lower support due to collision or friction during installation, and the integrity of the appearance and structure of the support is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creating creative labor for those skilled in the art.

[0019] Figure 1 It is the perspective view of the steering column adjusting support in the embodiment of the utility model.

[0020] Figure 2It is the perspective view of the welding tool in the embodiment of the utility model.

[0021] Figure 3 It is the perspective view of the workbench in the embodiment of the utility model.

[0022] Figure 4 It is the perspective view of the limiting seat and the pressing device in the embodiment of the utility model.

[0023] Figure 5 It is the structural schematic view of the limiting seat and the pressing device in the embodiment of the utility model.

[0024] Figure 6 It is the partial structure view of the welding tool in the embodiment of the utility model.

[0025] Figure 7 It is the perspective view of the Z direction fixed air cylinder in the embodiment of the utility model.

[0026] Figure 8 It is the structural schematic view of the Z direction fixed air cylinder in the embodiment of the utility model.

[0027] Figure 9 It is the rear perspective view of the Z direction fixed air cylinder in the embodiment of the utility model.

[0028] Figure 10 It is the front view of the Z direction fixed air cylinder in the embodiment of the utility model.

[0029] Mark explanation in the drawing:

[0030] 10, adjusting support, 20, workbench, 30, X direction fixed air cylinder, 40, Y direction fixed air cylinder, 50, Z direction fixed air cylinder, 60, pressing device, 70, welding torch;

[0031] 11, lower support, 12, upper support, 13, connecting nut;

[0032] 12a, connecting hole;

[0033] 21, table top, 22, limiting seat;

[0034] 22a, first positioning column, 22b, second positioning column, 22c, limiting protrusion;

[0035] 31, mounting seat, 32, fixed end;

[0036] 51, stand column, 52, clamping jaw, 53, slide rail, 54, sliding block;

[0037] 52a, lower pressing block, 52b, lateral support block, 52c, outer pressing block, 52d, first guide surface, 52e, second guide surface;

[0038] 61. Cylinder block; 62. Pressure arm; 63. Piston rod; 64. Limit sleeve. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0040] like Figures 2-10 As shown, this embodiment discloses a welding fixture for a steering column adjustment bracket 10, including a worktable 20, an X-axis fixing cylinder 30, a Y-axis fixing cylinder 40, a Z-axis fixing cylinder 50, and a clamping device 60. The worktable 20 is provided with a limiting seat 22 for placing the adjustment bracket 10. The X-axis fixing cylinder 30 is used to clamp or release the upper bracket 12, the Y-axis fixing cylinder 40 is used to clamp or release the lower bracket 11, the Z-axis fixing cylinder 50 is used to press and fix the lower bracket 11 against the limiting seat 22, and the clamping device 60 is used to press and fix the upper bracket 12 against the limiting seat 22.

[0041] Combination Figure 1 As shown, in this embodiment, the steering column adjustment bracket 10 includes a U-shaped lower bracket 11 and upper brackets 12 located on both sides of the lower bracket 11. The lower bracket 11 is pre-riveted with connecting nuts 13, and the upper bracket 12 is provided with connecting holes 12a. By passing fasteners through the connecting holes 12a, the upper bracket 12 can be installed on the vehicle body.

[0042] Combination Figure 2 As shown, in this embodiment, the limiting seat 22, the X-direction fixing cylinder 30, the Y-direction fixing cylinder 40, and the Z-direction fixing cylinder 50 are all fixedly installed above the table surface 21 of the workbench 20. The clamping device 60 includes a cylinder body 61, a pressing arm 62, and a limiting sleeve 64. The pressing arm 62 is fixedly connected to the piston rod 63 of the cylinder body 61, and the limiting sleeve 64 is fixedly installed on the cylinder body 61, with the piston rod 63 slidingly engaged with the inner channel of the limiting sleeve 64. The cylinder body 61 is fixedly installed below the table surface 21 of the workbench 20, and the limiting sleeve 64 and a portion of the piston rod 63 both pass through the workbench 20 and extend above it. In this embodiment, the clamping device 60 includes two cylinder bodies 61, each cylinder body 61 being provided with a pressing arm 62 and a limiting sleeve 64.

[0043] Combination Figures 3-4As shown, the limiting seat 22 is provided with a first positioning column 22a corresponding to the position of the connecting nut 13, and a second positioning column 22b corresponding to the position of the connecting hole 12a. In this embodiment, the U-shaped lower support 11 is installed in the middle of the limiting seat 22, with the opening facing upwards, and the two upper supports 12 are respectively located on the two sides of the lower support 11, and the corresponding welding tool is matched with two welding guns 70. The two cylinders 61 respectively drive the pressure arms 62 to move up and down, and the pressure arms 62 tightly fix the upper supports 12 on the limiting seat 22.

[0044] Further, in this embodiment, X-direction fixing cylinders 30 are symmetrically arranged on the two sides of the limiting seat 22. The X-direction fixing cylinders 30 include mounting seats 31 and fixed ends 32. The mounting seats 31 are fixedly installed on the workbench 20, and the cylinder bodies of the X-direction fixing cylinders 30 are fixedly connected. The moving end of the X-direction fixing cylinder 30 is the fixed end 32 thereof, and the fixed end 32 tightly abuts against the outer edge of the upper support 12. In some other embodiments, the fixed end 32 of the X-direction fixing cylinder 30 is sleeved with a protective layer made of soft rubber material, which is used to avoid scratches on the upper support 12.

[0045] Further, in this embodiment, a Y-direction fixing cylinder 40 is fixedly installed on the front side of the limiting seat 22, and the moving end thereof is used to tightly abut against the front edge of the lower support 11. A limiting protrusion 22c is arranged on the limiting seat 22, and the rear edge of the lower support 11 tightly abuts against one side of the limiting protrusion 22c.

[0046] Specifically, in combination with Figures 7-9 As shown, the Z-direction fixing cylinder 50 includes a vertical column 51 and a clamping jaw 52 slidingly installed on the vertical column 51. The clamping jaw 52 can reciprocate along the vertical direction relative to the vertical column 51. The vertical column 51 is provided with a sliding rail 53, and the clamping jaw 52 is installed with a sliding block 54 slidingly matched with the sliding rail 53. The clamping jaw 52 includes a lower pressing block 52a, a lateral supporting block 52b and an outer pressing block 52c. The lower end of the lower pressing block 52a is used to abut against the inner top of the lower support 11. The lateral supporting block 52b is fixedly installed on the two sides of the lower pressing block 52a, and is used to abut against the inner side wall of the lower support 11. The outer pressing block 52c is fixedly installed on the outer side of the lateral supporting block 52b, and is used to abut against the outer side wall of the lower support 11.

[0047] Further, in this embodiment, the vertical column 51 is fixedly installed on the workbench 20, and the front side of the vertical column 51 is vertically installed with the sliding rail 53. In combination with Figure 2 As shown, the upper end of the vertical column 51 is fixedly installed with a cylinder for driving the clamping jaw 52 to move. The moving end of the cylinder is fixedly connected with the upper end of the clamping jaw 52. The rear side of the clamping jaw 52 is fixedly connected with the sliding block 54, which is slidingly matched with the sliding rail 53. The center of the clamping jaw 52 is provided with the lower pressing block 52a, and the vertical lengths of the lower pressing block 52a, the lateral supporting block 52b and the outer pressing block 52c are sequentially decreased.

[0048] Specifically, in combination with Figure 10 As shown, the lateral support block 52b is provided with a first guide surface 52d for guiding the lower support 11 into the gap between the lateral support block 52b and the outer pressing block 52c. The outer pressing block 52c is provided with a second guide surface 52e for guiding the lower support 11 into the gap between the lateral support block 52b and the outer pressing block 52c.

[0049] In this embodiment, the welding work is used as follows:

[0050] First, the upper support 12 and the lower support 11 of the adjusting support 10 are placed on the limiting seat 22 in sequence, ensuring that each component is accurately aligned with the first and second positioning columns 22b. Then, the clamping device 60 is operated to clamp the upper support 12, preventing the upper support 12 from moving by providing stable vertical pressure. Next, the X-direction fixed cylinder 30, the Y-direction fixed cylinder 40, and the Z-direction fixed cylinder 50 are operated in sequence to multi-dimensionally clamp and fix the upper support 12 and the lower support 11, ensuring the all-around stability of the support during welding and avoiding displacement or deviation in any direction. Finally, the welding gun 70 is started, the welding point is accurately positioned, the upper support 12 and the lower support 11 are firmly welded together, and the strength and consistency of the welding point are ensured.

[0051] In the description of the present application, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the "on" or "under" of the first feature to the second feature can be the direct contact of the first and second features, or the indirect contact of the first and second features through an intermediate medium. Moreover, the "above" and "on" of the first feature to the second feature can be directly above or obliquely above the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below" and "under" of the first feature to the second feature can be directly below or obliquely below the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A steering column adjustment bracket welding fixture, characterized by: The device comprises a workbench (20), an X-direction fixed cylinder (30), a Y-direction fixed cylinder (40), a Z-direction fixed cylinder (50) and a pressing device (60), the workbench (20) is provided with a limiting seat (22) for placing an adjusting support (10), the X-direction fixed cylinder (30) is used for clamping or loosening an upper support (12), the Y-direction fixed cylinder (40) is used for clamping or loosening a lower support (11), the Z-direction fixed cylinder (50) is used for tightly fixing the lower support (11) on the limiting seat (22), and the pressing device (60) is used for tightly fixing the upper support (12) on the limiting seat (22).

2. The steering column adjusting bracket welding tool according to claim 1, characterized in that: The X-direction fixed cylinder (30), the Y-direction fixed cylinder (40) and the Z-direction fixed cylinder (50) are fixedly installed above a table top (21) of the workbench (20).

3. The steering column adjusting bracket welding tool according to claim 2, characterized in that: The pressing device (60) comprises a cylinder body (61), a pressing arm (62) and a limiting sleeve (64), the pressing arm (62) is fixedly connected with a piston rod (63) of the cylinder body (61), the limiting sleeve (64) is fixedly installed on the cylinder body (61), and the piston rod (63) and an inner channel of the limiting sleeve (64) are in sliding fit.

4. The steering column adjusting bracket welding tool according to claim 1, characterized in that: The lower support (11) is riveted with a connecting nut (13), and the limiting seat (22) is provided with a first positioning column (22a) at a position corresponding to the connecting nut (13).

5. The steering column adjusting bracket welding tool according to claim 4, characterized in that: The upper support (12) is provided with a connecting hole (12a), and the limiting seat (22) is provided with a second positioning column (22b) at a position corresponding to the connecting hole (12a).

6. The steering column adjusting bracket welding tool according to claim 1, characterized in that: The Z-direction fixed cylinder (50) comprises a vertical column (51) and a clamping jaw (52) slidably installed on the vertical column (51), and the clamping jaw (52) can reciprocate along a vertical direction relative to the vertical column (51).

7. The steering column adjusting bracket welding tool according to claim 6, characterized in that: The vertical column (51) is provided with a sliding rail (53), and the clamping jaw (52) is installed with a sliding block (54) in sliding fit with the sliding rail (53).

8. The steering column adjusting bracket welding tool according to claim 6 or 7, characterized in that: The clamping jaw (52) comprises a lower pressing block (52a), a lateral supporting block (52b) and an outer pressing block (52c), a lower end of the lower pressing block (52a) is used for abutting against an inner top of the lower support (11), the lateral supporting block (52b) is fixedly installed on both sides of the lower pressing block (52a) and is used for abutting against an inner side wall of the lower support (11), and the outer pressing block (52c) is fixedly installed on an outer side of the lateral supporting block (52b) and is used for abutting against an outer side wall of the lower support (11).

9. The steering column adjusting bracket welding tool according to claim 8, characterized in that: The lateral supporting block (52b) is provided with a first guide surface (52d) for guiding the lower support (11) to enter into a gap between the lateral supporting block (52b) and the outer pressing block (52c).

10. The steering column adjusting bracket welding tool according to claim 9, characterized in that: The outer pressing block (52c) is provided with a second guide surface (52e) for guiding the lower support (11) to enter into the gap between the lateral supporting block (52b) and the outer pressing block (52c).

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