An adjustable electric vehicle body assembly workbench
The electric vehicle body assembly workbench with an adaptive adjustment structure solves the problem that traditional workbench cannot adapt to complex curves, achieving efficient and stable body clamping and improving assembly accuracy and efficiency.
Patent Information
- Application Number
- CN202522011841.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Traditional electric vehicle body assembly workbenches lack adaptive capabilities and cannot actively conform to the complex curves of the vehicle body, resulting in unstable clamping and affecting assembly accuracy and efficiency.
An adaptive adjustment structure is adopted, which uses a motor to drive a threaded rod and a gear transmission system to achieve adaptive adjustment of the flexible clamping block, ensuring that the clamping block matches the vehicle body surface. Combined with mechanical transmission and elastic buffering, stable clamping is achieved.
It improves the assembly precision and efficiency of different electric vehicle models, avoids body misalignment and surface damage, and reduces manual intervention and rework costs.
Smart Images
Figure CN224674225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle production technology, and in particular to an adjustable electric vehicle body assembly workbench. Background Technology
[0002] In the field of electric vehicle manufacturing, body assembly is one of the core processes, and its efficiency and precision directly affect the quality and production cost of the whole vehicle. Traditional electric vehicle body assembly workbenches usually adopt a fixed structure design, mainly relying on rigid clamps or support frames to position and fix the body. The structure of this type of workbench is relatively simple and easy to operate, and it is suitable for single model or small batch production scenarios. However, with the rapid development of the electric vehicle market and the accelerated pace of model updates, there are significant differences in the body size and contour curves (such as the side curvature of the frame, the distribution of tubing, etc.) of different electric vehicle models, and the limitations of traditional fixed workbenches are becoming increasingly prominent.
[0003] In existing technologies, although some assembly workbenches have certain adjustment functions, the adjustment methods are mostly manual adjustment of the clamp position or replacement of special clamps; for example, fixing positioning blocks of different specifications with bolts, or using hydraulic cylinders to drive simple telescopic support arms. These adjustment methods have limited adjustment range and require manual intervention, which is time-consuming and labor-intensive. More importantly, the clamping structure of traditional workbenches lacks self-adaptive ability and cannot actively conform to the complex curves of the vehicle body surface. When the side of the vehicle body is an irregular arc surface or the tubes are unevenly distributed, the rigid clamps are prone to unstable clamping due to insufficient contact points or uneven force. The vehicle body may shift during assembly, which not only reduces the assembly accuracy (such as misalignment of the frame docking and tilting of component installation), but may also damage the surface coating or structural components of the vehicle body due to forced fixing, increasing rework costs.
[0004] Therefore, to address the aforementioned issues, an adjustable electric vehicle body assembly workbench is proposed. Through an adaptively adjustable fixing structure, it achieves active fitting and stable clamping of electric vehicle bodies of different models and with different contour curves, thereby improving assembly efficiency and precision. Utility Model Content
[0005] To overcome the problems of traditional electric vehicle body assembly workbenches in terms of multi-model compatibility and stability of clamping on complex curved surfaces, such as the lack of adaptive ability of the clamping structure of traditional workbenches and their inability to actively conform to the complex curves of the vehicle body surface.
[0006] The technical solution of this utility model is as follows: an adjustable electric vehicle body assembly workbench, including a base plate, a fixing groove, and a fixing assembly. The base plate has a fixing groove on its inner side, and the fixing assembly is located inside the fixing groove. The fixing assembly includes a movable frame, a first motor, a first threaded rod, a movable block, a connecting frame, a sliding block, a flexible clamping block, a guide rod, a return spring, a second motor, a rotating shaft, a first gear, a second gear, a first threaded tube, a fixed lead screw, a limiting block, and a limiting rod. The movable frame is located inside the fixing groove, and the first motor is located on one side of the movable frame. The output end of the first motor has a first threaded rod with two opposite threads. Two sets of movable blocks are threadedly connected to the outer side of the first threaded rod, and a connecting frame is located above the movable blocks. The inner side of the connecting frame is slidably connected to multiple sets of sliding blocks. One end of each sliding block is equipped with a flexible clamping block. One side of the connecting frame is equipped with multiple sets of guide rods, which are slidably connected to the sliding blocks. The outer side of each guide rod is equipped with a return spring, which is connected to the sliding block and the connecting frame at both ends. One side of the connecting frame is equipped with a second motor, which is equipped with a rotating shaft at its output end. The outer side of the rotating shaft is keyway connected to a first gear, which is meshed with a second gear on its outer side. The inner side of the second gear is equipped with a first threaded tube, which is embedded in the inner side of the connecting frame and rotatably connected to it. The inner side of the first threaded tube is equipped with a fixed screw, which is equipped with a limit block at one end. One side of the connecting frame is equipped with a limit rod, which is slidably connected to the limit block.
[0007] Preferably, by starting the first motor to drive the first threaded rod to rotate, the rotation of the first threaded rod drives the two sets of moving blocks to move linearly, thereby driving the two sets of connecting frames to move linearly. The linear movement of the two sets of connecting frames causes the flexible clamps at one end of the multiple sets of sliding blocks to contact the outer surface of the electric vehicle frame, pushing the sliding blocks to slide along the inner side of the connecting frames. The multiple sets of sliding blocks are in a state that matches the shape of the side surface of the electric vehicle frame. At this time, the second motor is started to drive the rotating shaft to rotate, which in turn drives the first gear to rotate, which in turn drives the second gear to rotate, which in turn drives the first threaded tube to rotate. The rotation of the first threaded tube causes the fixed screw to move linearly along the inner side of the first threaded tube, and the linear movement of the first threaded tube causes one end of it to be tightly attached to the sliding block, locking the position of the sliding block. This locks the state in which the multiple sets of sliding blocks match the shape of the side surface of the electric vehicle frame. When the first motor is started again, the linear movement of the two sets of connecting frames clamps and fixes the electric vehicle frame. This device, through its adaptive adjustment structure, can adapt to the outer surface of electric vehicle frames of different models and shapes, effectively clamping and fixing different models of electric vehicle frames.
[0008] Preferably, a controller is provided on one side of the base plate, and the controller is electrically connected to the first motor and the second motor respectively.
[0009] Preferably, a third motor is provided on one side of the base plate, and a second threaded rod is provided at the output end of the third motor, which is threadedly connected to the moving frame.
[0010] Preferably, a base is provided below the base plate, and an inclined plate is provided on one side of the base.
[0011] Preferably, a support is provided above the base plate, a sleeve is provided on the outside of the support, and a second threaded pipe is provided on one side of the sleeve.
[0012] Preferably, the inner thread of the second threaded tube is connected with a fixing bolt, and a first limiting bracket is provided on one side of the sleeve.
[0013] Preferably, a connecting seat is provided above the base plate, and a second limiting frame is rotatably connected to the outside of the connecting seat.
[0014] The beneficial effects of this utility model are: By starting the first motor, the first threaded rod rotates, which in turn drives two sets of moving blocks to move linearly. This, in turn, drives two sets of connecting frames to move linearly. The linear movement of the connecting frames causes the flexible clamps at one end of multiple sliding blocks to contact the outer surface of the electric vehicle frame, pushing the sliding blocks to slide along the inner side of the connecting frames. The multiple sets of sliding blocks then form a state that matches the shape of the side surface of the electric vehicle frame. At this time, the second motor is started, driving the rotating shaft to rotate. The rotation of the second rotating shaft drives the first gear to rotate, which in turn drives the second gear to rotate. The rotation of the second gear drives the first threaded tube to rotate, which in turn drives the fixed screw to move linearly along the inner side of the first threaded tube. The linear movement of the first threaded tube causes one end to press tightly against the sliding block, locking the position of the sliding block. This locks the state in which the multiple sets of sliding blocks match the shape of the side surface of the electric vehicle frame. When the first motor is started again, the linear movement of the two sets of connecting frames clamps and fixes the electric vehicle frame. This device, through its adaptive adjustment structure, can adapt to the outer surface of electric vehicle frames of different models and shapes, effectively clamping and fixing different models of electric vehicle frames, improving assembly efficiency and accuracy. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the adjustable electric vehicle body assembly workbench of this utility model. Figure 2 The diagram shown is a partial structural diagram of the adjustable electric vehicle body assembly workbench of this utility model. Figure 3 The diagram shown is a partial structural diagram of the adjustable electric vehicle body assembly workbench of this utility model. Figure 4 The diagram shown is a partial structural diagram of the adjustable electric vehicle body assembly workbench of this utility model. Figure 5 The diagram shown is a partial cross-sectional view of the adjustable electric vehicle body assembly workbench of this utility model. Figure 6 The diagram shown is a three-dimensional cross-sectional view of the adjustable electric vehicle body assembly workbench of this utility model. Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Fixing groove; 3. Controller; 101. Moving frame; 102. First motor; 103. First threaded rod; 104. Moving block; 105. Connecting frame; 106. Sliding block; 107. Flexible clamping block; 108. Guide rod; 109. Return spring; 110. Second motor; 111. Rotating shaft; 112. First gear; 113. Second gear; 114. First threaded tube; 115. Fixing screw; 116. Limiting block; 117. Limiting rod; 201. Third motor; 202. Second threaded rod; 301. Base; 302. Inclined plate; 401. Bracket; 402. Sleeve; 403. Second threaded tube; 404. Fixing bolt; 405. First limiting frame; 406. Connecting seat; 407. Second limiting frame. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Please see Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment: an adjustable electric vehicle body assembly workbench, including a base plate 1, a fixing groove 2, and a fixing assembly. The fixing groove 2 is formed on the inner side of the base plate 1, and the fixing assembly is arranged on the inner side of the fixing groove 2. The fixing assembly includes a movable frame 101, a first motor 102, a first threaded rod 103, a movable block 104, a connecting frame 105, a sliding block 106, a flexible clamping block 107, a guide rod 108, a return spring 109, a second motor 110, a rotating shaft 111, a first gear 112, a second gear 113, a first threaded tube 114, a fixing screw 115, a limiting block 116, and a limiting rod 117. The movable frame 101 is arranged on the inner side of the fixing groove 2, and the first motor 102 is arranged on one side of the movable frame 101. 02. The output end of the first motor 102 is provided with a first threaded rod 103. The first threaded rod 103 has two opposite threads. The outer thread of the first threaded rod 103 is connected to two sets of moving blocks 104. A connecting frame 105 is provided above the moving blocks 104. Multiple sets of sliding blocks 106 are slidably connected to the inner side of the connecting frame 105. A flexible clamping block 107 is provided at one end of the sliding block 106. Multiple sets of guide rods 108 are provided on one side of the connecting frame 105. The guide rods 108 and the sliding blocks 106 are slidably connected. A return spring 109 is provided on the outer side of the guide rods 108. The two ends of the return spring 109 are respectively connected to the sliding block 106 and the connecting frame 105. A second motor 110 is provided on one side of the connecting frame 105. The output end of the second motor 110... A rotating shaft 111 is provided, with a first gear 112 connected to the outer keyway of the rotating shaft 111. A second gear 113 is meshed with the outer side of the first gear 112. A first threaded tube 114 is provided on the inner side of the second gear 113. The first threaded tube 114 is embedded in the inner side of the connecting frame 105 and is rotatably connected to the connecting frame 105. A fixed lead screw 115 is provided on the inner side of the first threaded tube 114. A limit block 116 is provided at one end of the first lead screw. A limit rod 117 is provided on one side of the connecting frame 105. The limit rod 117 and the limit block 116 are slidably connected. By starting the first motor 102, the first threaded rod 103 is driven to rotate. The rotation of the first threaded rod 103 drives the two sets of moving blocks 104 to move linearly, thereby driving the two sets of connecting frames 105 to move linearly. When the two sets of connecting frames 105 move linearly, the flexible clamps 107 at one end of the multiple sets of sliding blocks 106 contact the outer surface of the electric vehicle frame, pushing the sliding blocks 106 to slide along the inner side of the connecting frames 105. The multiple sets of sliding blocks 106 are arranged to match the shape of the side surface of the electric vehicle frame. At this time, the second motor 110 is started to drive the rotating shaft 111 to rotate. The rotation of the second rotating shaft 111 drives the first gear 112 to rotate. The rotation of the first gear 112 drives the second gear 113 to rotate. The rotation of the second gear 113 drives the first threaded tube 114 to rotate. The rotation of the first threaded tube 114 drives the fixed screw 115 to move linearly along the inner side of the first threaded tube 114. The linear movement of the first threaded tube 114 causes one end of it to be tightly attached to the sliding block 106.The position of the sliding block 106 is locked, thereby locking the multiple sets of sliding blocks 106 into a state that matches the shape of the side surface of the electric vehicle frame. When the first motor 102 is restarted, the two sets of connecting brackets 105 move linearly to clamp and fix the electric vehicle frame.
[0018] Please see Figure 4 , Figure 5 and Figure 6 In this embodiment, a controller 3 is provided on one side of the base plate 1. The controller 3 is electrically connected to the first motor 102 and the second motor 110 respectively. A third motor 201 is provided on one side of the base plate 1. A second threaded rod 202 is provided at the output end of the third motor 201. The second threaded rod 202 is threadedly connected to the moving frame 101. In use, the third motor 201 is started to drive the second threaded rod 202 to rotate. The rotation of the second threaded rod 202 drives the moving frame 101 to move linearly, thereby adjusting the position of the moving frame 101. A base 301 is provided below the base plate 1. An inclined plate 302 is provided on one side of the base 301. In use, the inclined plate 302 can be used to conveniently push the electric vehicle frame above the base plate 1.
[0019] A bracket 401 is provided above the base plate 1. A sleeve 402 is provided on the outside of the bracket 401. A second threaded tube 403 is provided on one side of the sleeve 402. A fixing bolt 404 is threadedly connected to the inside of the second threaded tube 403. A first limiting frame 405 is provided on one side of the sleeve 402. A connecting seat 406 is provided above the base plate 1. A second limiting frame 407 is rotatably connected to the outside of the connecting seat 406. In use, when the frame with wheels is pushed onto the base plate 1, after the wheels roll over the second limiting frame 407, the second limiting frame 407 flips and cooperates with the first limiting frame 405 to limit and fix the front wheel of the electric vehicle. The tightness of the sleeve 402 can be adjusted by rotating the fixing bolt 404, thereby adjusting the position of the sleeve 402 on the bracket 401 and adjusting the height position of the first limiting frame 405.
[0020] During the process, the electric vehicle frame to be assembled is first pushed onto the base plate 1 via the inclined plate 302 on one side of the base plate 1. At this time, the bottom of the frame is in contact with the base plate 1, and the front wheel rolls over the second limiting frame 407 rotatably connected to the outside of the connecting seat 406. The second limiting frame 407 automatically flips and cooperates with the first limiting frame 405 on the side of the sleeve 402 on the bracket 401 to form an initial limiting position for the front wheel. By adjusting the fixing bolt 404 inside the second threaded tube 403 on the outside of the sleeve 402, the height of the sleeve 402 on the bracket 401 can be adjusted, thereby adjusting the limiting position of the first limiting frame 405 to ensure the initial positioning and stability of the frame. After initial positioning, the first motor 102 is started to drive the first threaded rod 103 to rotate, causing the two sets of moving blocks 104 to move linearly towards the frame, thereby causing the two sets of connecting frames 105 to synchronously approach the side of the frame; multiple sliding blocks 106 slidably connected inside the connecting frame 105 contact the frame surface through flexible clamping blocks 107 at one end. Under the action of complex curves on the frame surface (such as irregular arc surfaces or uneven distribution of tubing), the sliding blocks 106 slide along the guide rod 108 inside the connecting frame 105, and the return spring 109 provides buffering, so that the multiple sets of sliding blocks 106 automatically conform to the side surface of the frame, forming a clamping shape that matches the contour of the frame; When the second motor 110 is started, it drives the rotating shaft 111 and the first gear 112 to rotate. The first gear 112 drives the meshing second gear 113 to rotate, which in turn causes the first threaded tube 114 inside the second gear 113 to rotate. The first threaded tube 114 drives the fixed screw 115 to move linearly along its inner side through the threaded transmission. The end of the fixed screw 115 is in close contact with the surface of the sliding block 106, locking the position of the sliding block 106, thereby fixing the clamping shape that matches the profile of the frame formed by multiple sets of sliding blocks 106. The first motor 102 is started again, causing the two sets of connecting frames 105 to continue to move closer, and finally the frame is stably clamped by the flexible clamp 107. For different models or sizes of frames, the position of the moving frame 101 can be adjusted by the third motor 201 on one side of the base plate 1: start the third motor 201 to drive the second threaded rod 202 to rotate, causing the moving frame 101 to move linearly along the fixed groove 2, adjusting the relative position of the connecting frame 105 and the frame to accommodate a wider range of frame sizes; if the side profile of the frame differs greatly, the above adaptive clamping adjustment steps can be repeated, and the profile can be rematched through the sliding and locking mechanism of the sliding block 106; after assembly, reverse the operation of the first motor 102 and the second motor 110 to release the clamping state and remove the frame from the base plate 1; this device, through an adaptive structure combining mechanical transmission and elastic buffering, achieves efficient and stable clamping of multiple models and complex profile frames, significantly improving assembly accuracy and efficiency.
[0021] Through the above steps, the first motor 102 drives the first threaded rod 103 to rotate, which in turn drives the two sets of moving blocks 104 to move linearly, thereby driving the two sets of connecting frames 105 to move linearly. The linear movement of the two sets of connecting frames 105 causes the flexible clamps 107 at one end of the multiple sets of sliding blocks 106 to contact the outer surface of the electric vehicle frame, pushing the sliding blocks 106 to slide along the inner side of the connecting frame 105. The multiple sets of sliding blocks 106 are configured to match the shape of the side surface of the electric vehicle frame. At this time, the second motor 110 is started to drive the rotating shaft 111 to rotate, which in turn drives the first gear 112 to rotate, and the first gear 112 to rotate the second gear 113. The rotation of the first threaded tube 114, driven by the rotation of the second gear 113, causes the fixed screw 115 to move linearly along the inner side of the first threaded tube 114. The linear movement of the first threaded tube 114 causes one end of it to press tightly against the sliding block 106, locking the position of the sliding block 106. This locks the multiple sets of sliding blocks 106 into a state that matches the shape of the side surface of the electric vehicle frame. When the first motor 102 is restarted, the two sets of connecting frames 105 move linearly to clamp and fix the electric vehicle frame. This device uses an adaptive adjustment structure to adapt to the outer surface of electric vehicle frames of different models and shapes, effectively clamping and fixing different models of electric vehicle frames.
[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An adjustable electric vehicle body assembly workbench, comprising a base plate (1), characterized in that: It also includes a fixing groove (2) and a fixing component. The fixing groove (2) is provided on the inner side of the base plate (1), and the fixing component is provided on the inner side of the fixing groove (2). The fixing component includes a movable frame (101), a first motor (102), a first threaded rod (103), a movable block (104), a connecting frame (105), a sliding block (106), a flexible clamping block (107), a guide rod (108), a return spring (109), a second motor (110), a rotating shaft (111), a first gear (112), a second gear (113), and a first threaded tube (114). The fixed screw (115), the limiting block (116) and the limiting rod (117) are fixed. A movable frame (101) is provided inside the fixed groove (2). A first motor (102) is provided on one side of the movable frame (101). A first threaded rod (103) is provided at the output end of the first motor (102). The first threaded rod (103) has two opposite threads. Two sets of movable blocks (104) are connected to the outer thread of the first threaded rod (103). A connecting frame (105) is provided above the movable blocks (104). Multiple sets of sliding blocks are slidably connected to the inner side of the connecting frame (105). 106), a flexible clamping block (107) is provided at one end of the sliding block (106), and multiple sets of guide rods (108) are provided on one side of the connecting frame (105). The guide rods (108) and the sliding block (106) are slidably connected. A return spring (109) is provided on the outer side of the guide rod (108). The two ends of the return spring (109) are respectively connected to the sliding block (106) and the connecting frame (105). A second motor (110) is provided on one side of the connecting frame (105). A rotating shaft (111) is provided at the output end of the second motor (110). The outer side of the rotating shaft (111) is keyed. The groove is connected to a first gear (112), and a second gear (113) is meshed with the outer side of the first gear (112). A first threaded tube (114) is provided on the inner side of the second gear (113). The first threaded tube (114) is embedded in the inner side of the connecting frame (105) and is rotatably connected to the connecting frame (105). A fixed screw (115) is provided on the inner side of the first threaded tube (114). A limit block (116) is provided at one end of the first screw. A limit rod (117) is provided on one side of the connecting frame (105). The limit rod (117) and the limit block (116) are slidably connected.
2. The adjustable electric vehicle body assembly workbench according to claim 1, characterized in that: A controller (3) is provided on one side of the base plate (1), and the controller (3) is electrically connected to the first motor (102) and the second motor (110).
3. The adjustable electric vehicle body assembly workbench according to claim 1, characterized in that: A third motor (201) is provided on one side of the base plate (1), and a second threaded rod (202) is provided at the output end of the third motor (201). The second threaded rod (202) and the moving frame (101) are threadedly connected.
4. The adjustable electric vehicle body assembly workbench according to claim 1, characterized in that: A base (301) is provided below the base plate (1), and an inclined plate (302) is provided on one side of the base (301).
5. An adjustable electric vehicle body assembly workbench according to claim 1, characterized in that: A bracket (401) is provided above the base plate (1), a sleeve (402) is provided on the outside of the bracket (401), and a second threaded pipe (403) is provided on one side of the sleeve (402).
6. An adjustable electric vehicle body assembly workbench according to claim 5, characterized in that: The inner thread of the second threaded tube (403) is connected to a fixing bolt (404), and a first limiting bracket (405) is provided on one side of the sleeve (402).
7. An adjustable electric vehicle body assembly workbench according to claim 1, characterized in that: A connecting seat (406) is provided above the base plate (1), and a second limiting frame (407) is rotatably connected to the outside of the connecting seat (406).