Adjusting tool for positioning and welding vehicle body support

Abstract

The utility model provides an adjusting tool for positioning and welding a vehicle body support. The adjusting tool comprises a bottom plate, a first support, a second support, a sliding threaded sleeve, a positioning disc, an adjusting shaft, a movable block, a bearing cap, a connecting shaft and a bearing. By designing multi-axis linkage of the tool, small-angle adjustment can be achieved, stability is high, universality is good, and use convenience of the tool can be guaranteed. Due to the simple design of the tool, the requirement for replacement and installation of different support positioning shafts can be met by matching with different supporting bases and positioning discs according to the supporting heights required by different vehicle body structures in actual use, and the adjusting tool for positioning and welding the vehicle body support has good universality. Small-angle adjustment of the tool in the horizontal direction and the vertical direction can be achieved through the adjusting bolts, the actual welding technical requirements are met, the tool is suitable for the positioned welding requirements of various types of vehicle body supports, the rapid switching function is achieved, the cost of materials for tool manufacturing can be greatly reduced, the product cycle can be greatly shortened, and long-term sustainable use of equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to small angle adjusting frock technical field, concretely relates to a kind of adjusting frock for positioning welding of car body support. BACKGROUND

[0002] During the vehicle driving, car body support plays the key role of power output or transmission.To ensure the stability and reliability of vehicle during driving, according to the category of car body, such as wheel type and conveyor belt type, different welding methods need to be selected to ensure the long-term stable work of car body support.Among them, when car body support is welded, selecting reasonable inner and outer angle, front and rear beam according to structure or technical requirement is one of effective means to optimize the stability of car body.

[0003] As an efficient and reliable metal connection method, welding is the main installation method of current car body support, but the residual stress deformation caused by welding commonly used in car body manufacturing often causes problems such as poor positioning accuracy of car body support after welding.If technical conditions require that a certain inner and outer angle or front and rear beam is ensured during bracket installation, welding frock needs to be used to ensure welding requirements.Due to the small angle of inner and outer angle or front and rear beam, the manufacturing difficulty of welding frock is great, and in the case of many types of car body, even if the size of car body support changes slightly, new welding frock needs to be manufactured, which is not only difficult, time-consuming and tedious, but also a great waste of materials for various frocks. SUMMARY

[0004] (I) Technical problem to be solved

[0005] The utility model provides a kind of adjusting frock for positioning welding of car body support, to solve how the technical problem of diversified car body support accurate positioning welding.

[0006] (II) Technical scheme

[0007] In order to solve the above technical problems, the utility model provides an adjusting frock for positioning welding of car body support, which comprises a bottom plate, a first support, a second support, a sliding threaded sleeve, a positioning disc, an adjusting shaft, a movable block, a bearing cap, a connecting shaft and a bearing; wherein,

[0008] Two first supports are installed on the upper surface of the front part of the base plate, a second bearing is installed between the two first supports, a movable block sleeve is installed on the second bearing, and the movable block can be tilted relative to the first support; a bearing cap is installed on the rear end surface of the movable block, and a rotating shaft is installed on the bearing cap; two second supports are installed on the upper surface of the rear part of the base plate, and a support beam is connected between the top parts of the two second supports; two second supports are respectively installed with transversely arranged bolts, the top ends of the bolts extend into the inner side of the second support, a bearing is installed on the support beam, a vertically arranged bolt is installed in the bearing, the top end of the bolt extends into the inner side of the support beam and is connected with a sliding threaded sleeve; the adjusting shaft includes a cylindrical section and a rotating shaft connecting lug at the front end, the adjusting shaft is connected with the rotating shaft through the rotating shaft connecting lug, the middle part of the cylindrical section is processed into a U-shaped structure, the sliding threaded sleeve extends into the inner cavity of the U-shaped part, a transversely arranged connecting shaft penetrates through the side wall of the U-shaped part and the sliding threaded sleeve, so that the sliding threaded sleeve can slide in the inner cavity of the U-shaped part along the connecting shaft transversely; the top ends of the two first bolts are in contact with the outer walls on both sides of the U-shaped part respectively; the rear end of the cylindrical section of the adjusting shaft is fixedly connected with a positioning disc, and the positioning disc is used for fixedly connecting with a positioning shaft of a vehicle body support, so as to realize the installation of the corresponding vehicle body support.

[0009] Further, the bottoms of the two first supports are fixedly installed on the upper surface of the front part of the base plate.

[0010] Further, the bearing caps are installed on the rear end surface of the movable block through bolts on the upper and lower sides.

[0011] Further, the two bearing caps are respectively installed on the upper and lower sides of the rear end surface of the movable block, and the rotating shaft is installed between the two bearing caps.

[0012] Further, the bottoms of the two second supports are fixedly installed on the upper surface of the rear part of the base plate.

[0013] Further, the cylindrical section and the rotating shaft connecting lug are an integral structure.

[0014] Further, the positioning disc is fixedly connected with the positioning shaft of the vehicle body support through bolts and positioning pins.

[0015] (Three) beneficial effects

[0016] This utility model proposes an adjustment fixture for positioning and welding vehicle body brackets, including a base plate, a first support, a second support, a sliding threaded sleeve, a positioning plate, an adjusting shaft, a movable block, a bearing cap, a connecting shaft, and a bearing. This utility model, through the design of multi-axis linkage, enables small-angle adjustment, offering high stability, good versatility, and ensuring ease of use. The fixture's simplified design facilitates adaptation to different vehicle body structures requiring varying support heights, and the positioning plate allows for the replacement and installation of different bracket positioning shafts, resulting in excellent versatility for the adjustment fixture. The adjusting bolts enable small-angle adjustments in both horizontal and vertical directions, meeting actual welding requirements. This superior functionality reduces the manufacturing difficulty and complexity of traditional small-angle welding fixtures and is suitable for various types of vehicle body bracket positioning welding needs. It features rapid switching capabilities, significantly reducing material costs and product cycle time, and promoting long-term sustainable use of the equipment. Attached Figure Description

[0017] Figure 1 A three-dimensional view of the adjustment fixture for positioning and welding of the vehicle body bracket according to this utility model;

[0018] Figure 2 This is the main view of the adjustment fixture for positioning and welding the vehicle body bracket according to this utility model.

[0019] Figure 3 This is a top view of the adjustment fixture for positioning and welding of the vehicle body bracket according to this utility model;

[0020] Figure 4 This is a side view of the adjustment fixture for positioning and welding the vehicle body bracket according to this utility model;

[0021] Figure 5 for Figure 3 AA section view;

[0022] Figure 6 for Figure 4 BB cross-sectional view. Detailed Implementation

[0023] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] This embodiment proposes an adjustment fixture for positioning and welding a vehicle body bracket, the structure of which is as follows: Figures 1-6 As shown, it mainly includes a base plate 1, a first bolt 2, a sliding threaded sleeve 3, a second bolt 4, a positioning plate 5, an adjusting shaft 6, a first support 7, a movable block 8, a third bolt 9, a bearing cap 10, a second support 11, a connecting shaft 12, a first bearing 13, and a second bearing 14.

[0025] The bottoms of two first supports 7 are fixedly mounted on the front upper surface of the base plate 1. A second bearing 14 is installed between the two first supports 7. A movable block 8 is sleeved on the second bearing 14, and the movable block 8 can pitch and rotate relative to the first support 7. Two bearing caps 10 are respectively installed on the upper and lower sides of the rear end face of the movable block 8 by third bolts 9, and a rotating shaft is installed between the two bearing caps 10. The bottoms of two second supports 11 are fixedly mounted on the rear upper surface of the base plate 1, and a support beam is connected between the tops of the two second supports 11. A horizontally arranged first bolt 2 is installed on each of the two second supports 11, and the top of the first bolt 2 extends into the inner side of the second support 11. A first bearing 13 is installed on the support beam, and a vertically arranged second bolt 4 is installed in the first bearing 13. The top of the second bolt 4 extends into the inner side of the support beam and is connected to the sliding threaded sleeve 3.

[0026] The adjusting shaft 6 includes a cylindrical section and a rotating shaft connecting lug located at the front end. The cylindrical section and the rotating shaft connecting lug are integral structures. The adjusting shaft 6 is connected to the rotating shaft via the rotating shaft connecting lug. The middle part of the cylindrical section is machined into a U-shape. A sliding threaded sleeve 3 extends into the inner cavity of the U-shape. A transversely arranged connecting shaft 12 passes through the side wall of the U-shape and the sliding threaded sleeve 3, allowing the sliding threaded sleeve 3 to slide laterally along the connecting shaft 12 within the inner cavity of the U-shape. The tops of the two first bolts 2 contact the outer walls of the two sides of the respective U-shape. The rear end of the cylindrical section of the adjusting shaft 6 is fixedly connected to the positioning plate 5. The positioning plate 5 is used to fixally connect to the positioning shaft of the vehicle body bracket via bolts and positioning pins, thereby realizing the installation of the corresponding vehicle body bracket.

[0027] By equipping the positioning plate 5 with a drill reamer and installing a matching positioning shaft, the installation conditions of different brackets can be met. According to the actual height of the welding platform of the vehicle body, the bottom of the tooling can be installed with a base of different heights according to the actual situation to meet the overall height requirements.

[0028] In use, the lateral movement of the two first bolts 2 pushes the U-shaped part of the adjusting shaft 6, thereby allowing for a small-angle lateral adjustment of the adjusting shaft 6. After adjustment, the two first bolts 2 are locked, achieving a small-angle tilt of the positioning plate 5 in the horizontal direction, thus meeting the front and rear toe requirements for the positioning welding of the vehicle body bracket. The vertical movement of the second bolt 4 drives the sliding threaded sleeve 3 and the connecting shaft 12, allowing for a small-angle vertical adjustment of the adjusting shaft 6, achieving vertical adjustment of the positioning plate 5, thus meeting the internal and external tilt requirements for the positioning welding of the vehicle body bracket. The first support 7 and the second support 11 provide support for the moving parts in the tooling, meeting the strength requirements for tooling use during the positioning welding of the vehicle body bracket. Simultaneously, the tooling is detachable, ensuring the replacement of worn parts in later use, avoiding the need for reprocessing the entire tooling, reducing material waste, saving time, and improving production efficiency.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustment fixture for positioning and welding a vehicle body bracket, characterized in that, The adjustment fixture for positioning and welding the vehicle body bracket includes a base plate, a first support, a second support, a sliding threaded sleeve, a positioning plate, an adjusting shaft, a movable block, a bearing cap, a connecting shaft, and a bearing; wherein... Two first supports are installed on the front upper surface of the base plate. A second bearing is installed between the two first supports. A movable block is fitted onto the second bearing, allowing the movable block to pitch and rotate relative to the first supports. A bearing cap is installed on the rear end face of the movable block, and a rotating shaft is installed on the bearing cap. Two second supports are installed on the rear upper surface of the base plate, and a support beam connects the tops of the two second supports. Horizontally arranged bolts are installed on each of the two second supports, with the bolt tips extending into the inner side of the second support. Bearings are installed on the support beam, and vertically arranged bolts are installed within the bearings, with the bolt tips extending into the inner side of the support beam and engaging with the sliding bearing. The adjusting shaft is connected by a sliding threaded sleeve; the adjusting shaft includes a cylindrical section and a rotating shaft connecting lug located at the front end. The adjusting shaft is connected to the rotating shaft through the rotating shaft connecting lug. The middle part of the cylindrical section is machined into a U-shaped structure. The sliding threaded sleeve extends into the inner cavity of the U-shaped part. The transversely arranged connecting shaft passes through the side wall of the U-shaped part and the sliding threaded sleeve, so that the sliding threaded sleeve can slide laterally along the connecting shaft in the inner cavity of the U-shaped part. The top ends of the two first bolts contact the outer walls of the two sides of the respective U-shaped parts. The rear end of the cylindrical section of the adjusting shaft is fixedly connected to the positioning plate. The positioning plate is used to fixally connect to the positioning shaft of the vehicle body bracket to realize the installation of the corresponding vehicle body bracket.

2. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, The bottoms of the two first supports are fixedly installed on the front upper surface of the base plate.

3. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, The bearing caps are bolted to the upper and lower sides of the rear end face of the movable block.

4. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, Two bearing caps are installed on the upper and lower sides of the rear end face of the movable block, respectively, and the rotating shaft is installed between the two bearing caps.

5. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, The bottom of the two second supports is fixedly installed on the rear upper surface of the base plate.

6. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, The cylindrical section and the connecting lug of the rotating shaft are integrated into one structure.

7. The adjusting fixture for positioning and welding the vehicle body bracket as described in claim 1, characterized in that, The positioning plate is fixedly connected to the positioning shaft of the vehicle body bracket by bolts and positioning pins.

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