A positioning precise welding fixture for automobile machining

Abstract

This utility model relates to the field of automotive processing technology. It discloses a precise positioning welding fixture for automotive processing. By setting up a clamping device and an auxiliary mechanism, the clamping device is used to fix automotive parts, and the auxiliary mechanism is used to further fix the parts. This solves the problem of the lack of a precise positioning welding fixture in the current automotive processing field, which directly affects the quality and efficiency of automotive parts welding. Traditional welding fixtures often fail to meet the high requirements of modern automotive manufacturing for precision, flexibility, and adaptability. The lack of a precise positioning welding fixture leads to several problems. First, if the parts cannot be precisely fixed during the welding process, it is easy to cause weld point displacement, thereby affecting welding quality and even potentially leading to structural defects. Furthermore, due to the different shapes of different car models and parts, the lack of adaptable fixtures limits the flexibility of the production line and reduces production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive processing technology, and in particular relates to a welding fixture for automotive processing with precise positioning. Background Technology

[0002] Automotive manufacturing refers to the process of transforming raw materials into automotive parts and finally assembling them into a complete vehicle through a series of manufacturing processes and technologies. This process covers multiple stages, from design, casting, forging, machining to assembly.

[0003] The current automotive manufacturing process lacks a precise welding fixture. The problem with the aforementioned technology is that the lack of a precise welding fixture directly impacts the quality and efficiency of automotive component welding. Welding, as a crucial step in automotive manufacturing, is essential for ensuring the safety and stability of vehicle structures. However, traditional welding fixtures often fail to meet the high demands of modern automotive manufacturing for precision, flexibility, and adaptability. The lack of a precise welding fixture leads to several problems. First, if parts cannot be precisely fixed during welding, weld point misalignment can easily occur, affecting welding quality and potentially causing structural defects and increasing safety hazards. Second, due to the varying shapes of different car models and parts, a lack of adaptable fixtures limits production line flexibility and reduces production efficiency. Furthermore, inaccurate positioning may require additional manual adjustments or rework, increasing production costs and time consumption. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a precise positioning welding fixture for automotive processing that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a welding fixture for automotive processing with precise positioning includes a lifting leg, an operating table and a dual-head motor. The upper end of the lifting leg is fixedly connected to the lower surface of the operating table, and the lower end of the operating table is fixedly connected to the surface of the dual-head motor. A clamping device is provided on the upper end of the operating table, and an auxiliary mechanism is provided on the clamping device.

[0006] The clamping device is used to fix automotive parts;

[0007] The auxiliary mechanism is used to further secure the parts.

[0008] To improve the applicability of the entire fixture, preferably, the clamping device includes a clamping screw, a connecting plate, a support block, a sliding plate, a bearing rod, and a guide box. The surface of the clamping screw is threaded to the inner wall of the connecting plate, both ends of the connecting plate are fixedly connected to the inner wall of the support block, the upper end of the support block is fixedly connected to the lower surface of the sliding plate, the upper surface of the sliding plate is fixedly connected to the lower surface of the bearing rod, and the upper surface of the bearing rod is fixedly connected to the lower surface of the guide box. By rotating the clamping screw, the position of the connecting plate can be finely adjusted, thereby adapting to parts of different sizes and shapes.

[0009] To improve clamping stability, the auxiliary mechanism preferably includes an auxiliary screw, a fixed plate, a mounting block, an elastic block, and a clamping plate. The front end of the auxiliary screw is rotatably connected to the inner wall of the fixed plate, the surface of the fixed plate is fixedly connected to the rear end of the mounting block by bolts, the inner wall of the mounting block is fixedly connected to the rear end of the elastic block, and the front end of the elastic block is fixedly connected to the rear end of the clamping plate. The elastic block can provide necessary cushioning during clamping to prevent damage to the parts caused by excessive clamping, while also ensuring that the clamping plate is in close contact with the workpiece surface.

[0010] To improve the service life of the parts, preferably, a bearing bracket is provided at the lower end of the operating table, the inner wall of the bearing bracket is rotatably connected to the surface of the clamping screw, and stroke grooves are provided on both sides of the upper end of the operating table. The bearing bracket not only provides stable support for the clamping screw, but also effectively reduces friction and wear, thereby ensuring the response speed to the position of the connecting plate.

[0011] To improve the adaptability of the equipment, preferably, the output ends on both sides of the dual-head motor are fixedly connected to the front end of the clamping screw, the rear end of the clamping screw is rotatably connected to the inner wall of the lower end of the operating table, the upper surface of the sliding plate is slidably connected to the lower surface of the operating table, the surface of the bearing rod is slidably connected to the inner wall of the stroke groove, and the lower surface of the guide box is slidably connected to the upper surface of the operating table. The bearing rod moves smoothly within the stroke groove, allowing for quick and accurate position adjustment according to actual needs. This provides convenient conditions for processing parts of different sizes and further enhances the applicability of the fixture.

[0012] To improve the reliability of the clamping process, preferably, the surface of the auxiliary screw is threadedly connected to the inner wall of the guide box, the lower end surface of the mounting block is slidably connected to the inner wall of the guide box via a groove, and the surface of the clamping plate is slidably connected to the inner wall of the mounting block via a groove. The position of the mounting block can be adjusted by rotating the auxiliary screw. Due to the fit between the threads, even very fine adjustments can be easily achieved, which greatly improves the adaptability to parts of different sizes and shapes.

[0013] To improve operational stability, preferably, the upper surface of the bearing bracket is fixedly connected to the lower surface of the operating table, preventing the operating table from shaking or shifting due to external forces, thereby ensuring accuracy and consistency during the processing. This is especially important in high-precision welding operations, where any slight movement can affect the final product quality.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention comprises a clamping device, an auxiliary mechanism, a clamping screw, a connecting plate, a support block, a load-bearing rod, a guide box, an auxiliary screw, a fixing plate, an elastic block, and a clamping plate. The clamping device is used to fix automotive parts, and the auxiliary mechanism is used to further fix the parts. By rotating the clamping screw, the position of the connecting plate can be finely adjusted, thus adapting to parts of different sizes and shapes. The elastic block provides necessary cushioning during clamping to prevent damage to parts caused by excessive clamping, while also ensuring a tight fit between the clamping plate and the workpiece surface. This invention solves the problem of the lack of precise welding fixtures in the automotive processing field, which affects welding quality and efficiency. Welding is a key step in ensuring vehicle safety and stability, but traditional fixtures cannot meet the requirements of modern automotive manufacturing for precision, flexibility, and adaptability. Insufficient precise positioning can lead to weld point misalignment, structural defects, and safety hazards. At the same time, it limits the flexibility of the production line, reduces production efficiency, and may require additional manual adjustments or rework, increasing costs and time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the main body provided in this embodiment of the utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the clamping device provided in this embodiment of the utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the auxiliary mechanism provided in an embodiment of this utility model.

[0020] In the diagram: 1. Clamping device; 101. Clamping screw; 102. Connecting plate; 103. Support block; 104. Sliding plate; 105. Bearing rod; 106. Guide box; 2. Auxiliary mechanism; 201. Auxiliary screw; 202. Fixing plate; 203. Mounting block; 204. Elastic block; 205. Clamping plate; 3. Bearing frame; 4. Stroke groove; 5. Lifting leg; 6. Operating table; 7. Dual-head motor. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4As shown in the figure, this utility model provides a precise positioning welding fixture for automotive processing, including a lifting leg 5, an operating table 6, and a dual-head motor 7. The upper end of the lifting leg 5 is fixedly connected to the lower surface of the operating table 6, and the lower end of the operating table 6 is fixedly connected to the surface of the dual-head motor 7. A clamping device 1 is provided on the upper end of the operating table 6, and an auxiliary mechanism 2 is provided on the clamping device 1. The clamping device 1 is used to fix automotive parts, and the auxiliary mechanism 2 is used to further fix the parts. The clamping device 1 includes a clamping screw 101, a connecting plate 102, a support block 103, a sliding plate 104, a bearing rod 105, and a guide box 106. The surface of the clamping screw 101 is threadedly connected to the inner wall of the connecting plate 102, and both ends of the connecting plate 102 are fixedly connected to the inner wall of the support block 103. The upper end of the support block 103 is fixedly connected to the lower surface of the sliding plate 104, the upper surface of the sliding plate 104 is fixedly connected to the lower surface of the bearing rod 105, and the upper surface of the bearing rod 105 is fixedly connected to the lower surface of the guide box 106. By rotating the clamping screw 101, the position of the connecting plate 102 can be finely adjusted, thereby adapting to parts of different sizes and shapes. The auxiliary mechanism 2 includes an auxiliary screw 201, a fixed plate 202, a mounting block 203, an elastic block 204, and a clamping plate 205. The front end of the auxiliary screw 201 is rotatably connected to the inner wall of the fixed plate 202. The surface of the fixed plate 202 is fixedly connected to the rear end of the mounting block 203 by bolts. The inner wall of the mounting block 203 is fixedly connected to the rear end of the elastic block 204. The front end of the elastic block 204 is connected to the clamping plate 205. The rear end is fixedly connected, and the elastic block 204 can provide necessary buffering during clamping to prevent damage to the parts caused by excessive clamping. At the same time, it can also ensure that the clamping plate 205 is in close contact with the workpiece surface. The lower end of the operating table 6 is provided with a bearing bracket 3, and the inner wall of the bearing bracket 3 is rotatably connected to the surface of the clamping screw 101. The upper end of the operating table 6 is provided with stroke grooves 4 on both sides. The bearing bracket 3 not only provides stable support for the clamping screw 101, but also effectively reduces friction and wear, thereby ensuring the response speed to the position of the connecting plate 102. The output ends of the two ends of the dual-head motor 7 are fixedly connected to the front end of the clamping screw 101, and the rear end of the clamping screw 101 is rotatably connected to the inner wall of the lower end of the operating table 6. The upper surface of the sliding plate 104 is slidably connected to the lower surface of the operating table 6. The bearing rod 1 The surface of the guide box 105 is slidably connected to the inner wall of the stroke groove 4, and the lower surface of the guide box 106 is slidably connected to the upper surface of the operating table 6. The bearing rod 105 moves smoothly within the stroke groove 4, allowing for quick and accurate position adjustment according to actual needs. This provides convenient conditions for processing parts of different sizes and further enhances the applicability of the fixture. The surface of the auxiliary screw 201 is threadedly connected to the inner wall of the guide box 106, and the lower surface of the mounting block 203 is slidably connected to the inner wall of the guide box 106 via a sliding groove. The surface of the clamping plate 205 is slidably connected to the inner wall of the mounting block 203 via a sliding groove. The position of the mounting block 203 can be adjusted by rotating the auxiliary screw 201. Due to the fit between the threads, even very fine adjustments can be easily achieved.This greatly improves adaptability to parts of different sizes and shapes. The upper surface of the bearing bracket 3 is fixedly connected to the lower surface of the operating table 6, preventing the operating table 6 from shaking or shifting due to external forces. This ensures accuracy and consistency during the processing, especially in high-precision welding operations, where even the slightest movement can affect the final product quality.

[0024] The working principle of this utility model:

[0025] When welding automotive parts, the parts to be processed are first placed on the operating table 6. Next, the dual-head motor 7 located at the lower end of the operating table 6 is started. Through the output ends on both sides of the motor, adjusting screws installed in the bearing bracket 3 are driven to rotate. The adjusting screws interact with the threads on the inner wall of the connecting plate 102, allowing the connecting plate 102 to move smoothly along the surface of the adjusting screws. When the connecting plate 102 moves, the support blocks 103 at both ends drive the bearing rods 105 to slide synchronously within the stroke groove 4, thereby adjusting the distance between the guide boxes 106 at the upper end of the operating table 6 to accommodate automotive parts of different sizes. When the guide boxes 106 move to the position where the part needs to be welded... After the clamping position is determined, finer adjustments can be made by rotating the auxiliary screw 201 on the guide box 106. The auxiliary screw 201 engages with the threaded inner wall of the guide box 106, allowing it to push the mounting block 203 to move back and forth inside the guide box 106. As the mounting block 203 moves, the clamping plate 205 contained within it gradually approaches and eventually contacts the surface of the part, achieving a stable clamping. By independently adjusting the auxiliary screw 201 in each guide box 106, it can be ensured that the clamping plate 205 can firmly and accurately fix parts of various sizes and shapes, thereby greatly improving the flexibility and adaptability of the entire clamping process and providing a solid guarantee for subsequent welding operations.

[0026] The specific models and specifications of the dual-head motor, clamping screw, elastic block, and auxiliary screw proposed in this application need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt the existing technology in this field, so they will not be described in detail here.

[0027] The wiring connection methods and control methods of the dual-head motor, clamping screw, elastic block, and auxiliary screw proposed in this application are all prior art in this field, and therefore will not be described in detail.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A precision-positioning welding fixture for automotive processing, comprising a lifting leg (5), an operating table (6), and a dual-head motor (7), wherein the upper end of the lifting leg (5) is fixedly connected to the lower surface of the operating table (6), and the lower end of the operating table (6) is fixedly connected to the surface of the dual-head motor (7), characterized in that: The upper end of the operating table (6) is provided with a clamping device (1), and the clamping device (1) is provided with an auxiliary mechanism (2). The clamping device (1) is used to fix the automotive parts; The auxiliary mechanism (2) is used to further fix the parts; The clamping device (1) includes a clamping screw (101), a connecting plate (102), a support block (103), a sliding plate (104), a bearing rod (105), and a guide box (106). The surface of the clamping screw (101) is threadedly connected to the inner wall of the connecting plate (102). Both ends of the connecting plate (102) are fixedly connected to the inner wall of the support block (103). The upper end of the support block (103) is fixedly connected to the lower surface of the sliding plate (104). The upper surface of the sliding plate (104) is fixedly connected to the lower surface of the bearing rod (105). The upper surface of the bearing rod (105) is fixedly connected to the lower surface of the guide box (106). The auxiliary mechanism (2) includes an auxiliary screw (201), a fixed plate (202), a mounting block (203), an elastic block (204), and a clamping plate (205). The front end of the auxiliary screw (201) is rotatably connected to the inner wall of the fixed plate (202). The surface of the fixed plate (202) is fixedly connected to the rear end of the mounting block (203) by bolts. The inner wall of the mounting block (203) is fixedly connected to the rear end of the elastic block (204). The front end of the elastic block (204) is fixedly connected to the rear end of the clamping plate (205).

2. The positioning precision welding fixture for machining automobile as claimed in claim 1, wherein: The lower end of the operating table (6) is provided with a bearing frame (3), the inner wall of the bearing frame (3) is rotatably connected to the surface of the clamping screw (101), and the upper end of the operating table (6) is provided with stroke grooves (4) on both sides.

3. The positioning precision welding fixture for machining automobile as claimed in claim 2, wherein: The output ends of the two sides of the dual-head motor (7) are fixedly connected to the front end of the clamping screw (101), the rear end of the clamping screw (101) is rotatably connected to the lower inner wall of the operating table (6), the upper surface of the sliding plate (104) is slidably connected to the lower surface of the operating table (6), the surface of the bearing rod (105) is slidably connected to the inner wall of the stroke groove (4), and the lower surface of the guide box (106) is slidably connected to the upper surface of the operating table (6).

4. The precision-positioning welding fixture for automotive processing as described in claim 3, characterized in that: The surface of the auxiliary screw (201) is threaded to the inner wall of the guide box (106), the lower surface of the mounting block (203) is slidably connected to the inner wall of the guide box (106) through a groove, and the surface of the clamping plate (205) is slidably connected to the inner wall of the mounting block (203) through a groove.

5. A precision-positioning welding fixture for automotive machining as described in claim 4, characterized in that: The upper surface of the bearing frame (3) is fixedly connected to the lower surface of the operating table (6).

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