Automobile roof centering mechanism

By combining a motor-driven rack and pinion with an arc-shaped pressure plate, the problems of positioning accuracy and welding speed of roofs for multiple vehicle models were solved, achieving high-precision centering and rapid welding.

CN223506517UActive Publication Date: 2025-11-04HENGZHANSHUO INTELLIGENT TECHNOLOGY (ZHANGJIAGANG) CO LTD
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Patent Information

Application Number
CN202422857362.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-11-04
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing automotive roof alignment mechanisms suffer from reduced positioning accuracy and slow welding speed when welding multiple vehicle models. This is especially true for plate-shaped roof structures that bulge upwards in the middle and bend downwards on the periphery, which are prone to shifting during clamping.

Method used

The system uses a combination of a motor-driven rack and pinion and an arc-shaped pressure plate. The arc-shaped pressure plate slides within the slide rail through gear meshing, pressing down on the edge of the top cover for fixation. The height of the ball bearings can be adjusted by an electric push rod to accommodate top covers of different depths, preventing displacement and impact.

Benefits of technology

It improves the accuracy of top cover centering and positioning, avoids top cover offset, increases welding speed and accuracy, and reduces the risk of top cover impact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to an automobile top cover centering mechanism which comprises a supporting table, a plurality of adjusting assemblies fixedly arranged in the frame, a supporting assembly fixedly arranged at the other end of the frame, a first storage groove, a second storage groove, a third storage groove and a fourth storage groove. The multiple clamping assemblies are movably arranged on the two sides and one end of the frame correspondingly, and the pressing assembly is fixedly installed on the surface of one end of the rack. According to the utility model, the upper edge of the automobile top cover is pressed by the plurality of pressing assemblies, so that the plurality of clamping assemblies drive the automobile top cover to move, press and push the automobile top cover, and the automobile top cover is centered, clamped and fixed, and a plurality of rollers are replaced to move from the periphery of the automobile top cover to clamp and fix the automobile top cover; the situation that the automobile top cover is elastically bent and deviates towards one side due to the fact that the upper portion of the automobile top cover is not clamped by the idler wheels is avoided, the accuracy during centering and positioning is improved, and the welding speed of the top cover is prevented from being delayed.
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Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to an automobile roof centering mechanism. Background Technology

[0002] With the rapid development of the automotive industry and the continuous acceleration of model updates, the existing space for the centering platform of the car roof is limited. Therefore, it can only meet the centering needs of a single car roof model. If the roofs of multiple car models are welded at the same time, a corresponding centering platform needs to be designed according to the different roof types.

[0003] The announcement number is CN219617025U, which discloses "a flexible centering mechanism for automobile roofs, comprising: an X-direction positioning component for defining the position of different types of automobile roofs in the X direction; a Y-direction positioning component for defining the position of different types of automobile roofs in the Y direction; and a Z-direction support component for supporting different types of automobile roofs; wherein the X-direction positioning component comprises: an X-direction reference positioning component for defining the position of a first end of the automobile roof in the X direction; and an X-direction clamping component for defining the position of a second end of the automobile roof in the X direction by linear movement in the X direction".

[0004] There are still some drawbacks in its use. Multiple rollers move from the outside of the car roof to clamp and fix it. However, some car roofs are plate-like structures that bulge upward in the middle and bend downward on the outside. When the rollers clamp and squeeze the edge of the car roof, if there is no clamp on the top of the car roof, it is easy for the car roof to bend elastically and shift to one side, which will reduce the accuracy of centering and positioning and delay the welding speed of the roof. Utility Model Content

[0005] The purpose of this invention is to provide a car roof centering mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A car roof centering mechanism, comprising:

[0008] A support platform, on which a frame is installed at the upper end, and two storage slots are provided on both sides and one end of the frame, and a first storage slot is symmetrically provided on the other end of the frame.

[0009] Multiple adjustment components are fixedly installed inside the frame;

[0010] The supporting components are fixedly installed at the other end of the frame;

[0011] Multiple clamping components are movably disposed on both sides and one end of the frame, and the clamping components include a rack that is slidably connected inside the second storage slot;

[0012] A pressing assembly is fixedly installed on one end surface of the rack. The pressing assembly includes two arc-shaped slide rails fixedly installed on one end surface of the rack, and an arc-shaped pressure plate is slidably connected inside the arc-shaped slide rails.

[0013] Furthermore, the adjustment component includes:

[0014] The electric actuator is fixedly embedded in the lower surface of the frame.

[0015] The U-shaped rod is fixedly installed at the output end of the electric push rod, and the U-shaped rod slides through the frame.

[0016] Ball bearings are rotatably embedded at both ends of the U-shaped rod.

[0017] Furthermore, the supporting component includes:

[0018] Two L-shaped sliding rods are slidably connected to the inside of the two No. 1 storage slots, respectively;

[0019] Two No. 1 rollers are respectively connected to the other end of the upper surface of the frame;

[0020] The second roller is rotatably connected to one end of the upper surface of the L-shaped slide bar;

[0021] The spring is fixedly connected at both ends to the L-shaped slide bar and the inner surface of the first storage slot.

[0022] Furthermore, a No. 3 roller is rotatably connected to one end of the upper surface of the rack, a No. 1 connecting seat is fixedly installed on the lower surface of the frame, a No. 1 rotating shaft is rotatably connected inside the No. 1 connecting seat, and a No. 1 gear and a worm gear are fixedly installed on the outer surface of the No. 1 rotating shaft respectively.

[0023] Preferably, a No. 1 motor is fixedly mounted on the lower surface of the frame via a bracket, and a worm gear is fixedly mounted on the output end of the No. 1 motor. The worm gear is meshed with a worm wheel for transmission, and the No. 1 gear is meshed with a rack at a corresponding position for transmission.

[0024] Furthermore, a second connecting seat is fixedly installed between the two arc-shaped slide rails, a second rotating shaft is rotatably connected inside the second connecting seat, and a second gear is symmetrically fixedly installed on the outer surface of the second rotating shaft.

[0025] Preferably, an incomplete gear is fixedly installed on the inner surface of the arc-shaped pressure plate, and the second gear meshes with the incomplete gear at the corresponding position for transmission connection. A second motor is fixedly installed on one side surface of the arc-shaped slide rail, and the output end of the second motor is fixedly connected to the second rotating shaft.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. The operation of motor one causes the rack to slide inside the second receiving slot, driving the pressing component to move. Simultaneously, motor two operates, and through the meshing transmission of gear two and the incomplete gear, pushes the arc-shaped pressure plate to slide in the arc-shaped slide rail, making circumferential movement. The upper part of the arc-shaped pressure plate presses against the upper edge of the car roof. Thus, multiple pressing components press against the upper edge of the car roof, pressing and pushing the car roof to center and clamp it in place. This replaces moving the car roof from the outside to clamp it, preventing the car roof from elastically bending and shifting to one side due to the lack of clamping above. This improves the accuracy of centering and positioning, and avoids delaying the welding speed of the roof.

[0028] 2. By extending the electric push rod, the U-shaped rod is moved up and down, which adjusts the height of the ball bearings to support the car roof at different depths, preventing the car roof from contacting the frame and reducing the impact on the car roof during alignment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the overall vertical cross-sectional structure of this utility model;

[0031] Figure 3 This is a side cross-sectional view of the connection between the support component and the frame in this utility model.

[0032] Figure 4 This is a schematic diagram showing the disassembled structure of the frame, clamping component, and pressing component in this utility model;

[0033] Figure 5 This is a cross-sectional structural diagram of the clamping component and the pressing component in this utility model.

[0034] In the diagram: 1. Support platform; 101. Frame; 102. Storage slot 1; 103. Storage slot 2; 2. Adjustment assembly; 201. Electric push rod; 202. U-shaped rod; 203. Ball bearing; 3. Support assembly; 301. L-shaped slide bar; 302. Roller 1; 303. Roller 2; 304. Spring; 4. Clamping assembly; 401. Rack; 402. Roller 3; 403. Connecting seat 1; 404. Shaft 1; 405. Gear 1; 406. Worm gear; 407. Worm; 408. Motor 1; 5. Pressing assembly; 501. Arc-shaped slide rail; 502. Connecting seat 2; 503. Shaft 2; 504. Gear 2; 505. Arc-shaped pressure plate; 506. Incomplete gear; 507. Motor 2. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-5 In this embodiment of the present invention, a car roof centering mechanism includes a support platform 1, a frame 101 mounted on the upper end of the support platform 1, a second storage groove 103 opened on both sides and one end of the frame 101, a first storage groove 102 symmetrically opened on the other end of the frame 101, multiple adjustment components 2 fixedly disposed inside the frame 101, a support component 3 fixedly disposed at the other end of the frame 101, and multiple clamping components 4 movably disposed on both sides and one end of the frame 101 respectively. The clamping component 4 includes a rack 401 slidably connected inside the second storage groove 103, and a pressing component 5 fixedly installed on one end surface of the rack 401. The pressing component 5 includes two arc-shaped slide rails 501 fixedly installed on one end surface of the rack 401, and an arc-shaped pressure plate 505 slidably connected inside the arc-shaped slide rails 501.

[0037] Specifically, the adjustment component 2 adjusts the height of the car roof being supported, the support component 3 supports the car roof from below, the clamping component 4 clamps the car roof from the outside, and the pressing component 5 presses down on the upper edge of the car roof to prevent the car roof from deflecting.

[0038] Example 1

[0039] like Figure 1 and 3 As shown, in this embodiment, the support component 3 includes: two L-shaped slide rods 301 that are slidably connected to the inside of two first storage slots 102 respectively; two first rollers 302 that are rotatably connected to the other end of the upper surface of the frame 101 respectively; a second roller 303 that is rotatably connected to one end of the upper surface of the L-shaped slide rods 301; and two ends of the spring 304 that are fixedly connected to the inner surface of the L-shaped slide rods 301 and the first storage slot 102 respectively.

[0040] In this embodiment, two first rollers 302 provide limiting support for the car roof from the lower end of the frame 101, and the spring 304 pulls the L-shaped slide bar 301, causing the L-shaped slide bar 301 to drive the second roller 303 to adapt to the arc edge of the car roof and support it.

[0041] like Figure 3-5As shown, in this embodiment, a third roller 402 is rotatably connected to one end of the upper surface of the rack 401. A first connecting seat 403 is fixedly installed on the lower surface of the frame 101. A first rotating shaft 404 is rotatably connected inside the first connecting seat 403. A first gear 405 and a worm gear 406 are fixedly installed on the outer surface of the first rotating shaft 404. A first motor 408 is fixedly installed on the lower surface of the frame 101 via a bracket. A worm gear 407 is fixedly installed at the output end of the first motor 408. The worm gear 407 meshes with the worm gear 406 for transmission. The first gear 405 and the corresponding position... The rack and pinion 401 is engaged for transmission; a second connecting seat 502 is fixedly installed between two arc-shaped slide rails 501, and a second rotating shaft 503 is rotatably connected inside the second connecting seat 502. A second gear 504 is symmetrically fixedly installed on the outer surface of the second rotating shaft 503; an incomplete gear 506 is fixedly installed on the inner surface of the arc-shaped pressure plate 505, and the second gear 504 is engaged for transmission with the corresponding incomplete gear 506. A second motor 507 is fixedly installed on one side surface of one arc-shaped slide rail 501, and the output end of the second motor 507 is fixedly connected to the second rotating shaft 503.

[0042] In practice, after the car roof is placed on top of the frame 101, the first motor 408 operates, driving the worm gear 407 to rotate. Through its meshing rotation with the worm wheel 406, the worm wheel 406 and the first rotating shaft 404 rotate, driving the first gear 405 to rotate. Through its meshing transmission with the rack 401, the rack 401 slides inside the second receiving slot 103, driving the pressing assembly 5 to move. At the same time, the second motor 507 operates, driving the second rotating shaft 503 to rotate. Through the meshing transmission between the second gear 504 and the incomplete gear 50... The meshing transmission of 6 pushes the arc-shaped pressure plate 505 to slide and move circumferentially inside the arc-shaped slide rail 501, so that the upper end of the arc-shaped pressure plate 505 presses against the upper edge of the car roof. Thus, the upper edge of the car roof is pressed by multiple pressing components 5, pressing and pushing the car roof to center and clamp it, which is a replacement for moving the car roof from the outside to clamp it. This avoids the car roof from being elastically bent and shifted to one side due to the lack of clamping above it, improves the accuracy of centering and positioning, and avoids delaying the welding speed of the roof.

[0043] Example 2

[0044] Based on Embodiment 1, in order to compensate for the problem that when the car roof is deep, its edge will come into contact with the frame 101 and cause bumps.

[0045] like Figure 2 As shown, in this embodiment, the adjustment component 2 includes: an electric push rod 201 fixedly embedded in the lower surface of the frame 101, a U-shaped rod 202 fixedly installed at the output end of the electric push rod 201, and the U-shaped rod 202 slidingly passing through the frame 101, and ball bearings 203 rotatably embedded in both ends of the U-shaped rod 202.

[0046] In practice, the electric push rod 201 extends, pushing the U-shaped rod 202 up and down, so that the height of the ball bearing 203 is adjusted, so that it supports the car roof at different depths, preventing the car roof from contacting the frame 101 and reducing the impact on the car roof during alignment.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A car roof centering mechanism, characterized in that, include: A support platform (1) is provided, and a frame (101) is installed on the upper end of the support platform (1). The two sides and one end of the frame (101) are provided with a second storage slot (103), and a first storage slot (102) is symmetrically provided on the other end of the frame (101). Multiple adjustment components (2) are fixedly installed inside the frame (101); Support component (3) is fixedly installed at the other end of frame (101); Multiple clamping components (4) are movably disposed on both sides and one end of the frame (101), and the clamping components (4) include a rack (401) slidably connected inside the second storage slot (103); The pressing assembly (5) is fixedly installed on one end surface of the rack (401). The pressing assembly (5) includes two arc-shaped slide rails (501) fixedly installed on one end surface of the rack (401). An arc-shaped pressure plate (505) is slidably connected inside the arc-shaped slide rails (501).

2. The car roof centering mechanism according to claim 1, characterized in that, The adjustment component (2) includes: An electric actuator (201) is fixedly embedded in the lower surface of the frame (101); A U-shaped rod (202) is fixedly installed at the output end of the electric push rod (201), and the U-shaped rod (202) slides through the frame (101); Ball bearings (203) are rotatably embedded at both ends of the U-shaped rod (202).

3. The car roof centering mechanism according to claim 1, characterized in that, The support component (3) includes: Two L-shaped slide bars (301) are slidably connected to the inside of two No. 1 storage slots (102); Two No. 1 rollers (302) are rotatably connected to the other end of the upper surface of the frame (101); The second roller (303) is rotatably connected to one end of the upper surface of the L-shaped slide bar (301); The spring (304) is fixedly connected at both ends to the L-shaped slide bar (301) and the inner surface of the first storage slot (102).

4. The car roof centering mechanism according to claim 1, characterized in that, A No. 3 roller (402) is rotatably connected to one end of the upper surface of the rack (401), a No. 1 connecting seat (403) is fixedly installed on the lower surface of the frame (101), a No. 1 rotating shaft (404) is rotatably connected inside the No. 1 connecting seat (403), and a No. 1 gear (405) and a worm gear (406) are fixedly installed on the outer surface of the No. 1 rotating shaft (404).

5. The car roof centering mechanism according to claim 4, characterized in that, A first motor (408) is fixedly installed on the lower surface of the frame (101) by a bracket. A worm (407) is fixedly installed at the output end of the first motor (408). The worm (407) is meshed with a worm wheel (406) for transmission. The first gear (405) is meshed with a rack (401) at the corresponding position for transmission.

6. The car roof centering mechanism according to claim 1, characterized in that, A second connecting seat (502) is fixedly installed between the two arc-shaped slide rails (501). A second rotating shaft (503) is rotatably connected inside the second connecting seat (502). A second gear (504) is symmetrically fixedly installed on the outer surface of the second rotating shaft (503).

7. The automobile roof centering mechanism according to claim 6, characterized in that, An incomplete gear (506) is fixedly installed on the inner surface of the arc-shaped pressure plate (505). The second gear (504) meshes and drives with the incomplete gear (506) at the corresponding position. A second motor (507) is fixedly installed on one side surface of one of the arc-shaped slide rails (501). The output end of the second motor (507) is fixedly connected to the second rotating shaft (503).

Citation Information

Patent Citations

  • Flexible centering mechanism for automobile top cover

    CN219617025U