Automatic centering device for assembling automobile chassis
By using a motor-driven screw and sensor-controlled clamping mechanism with an automatic alignment device, combined with auxiliary moving components, the chassis and body are quickly and accurately aligned, solving the problem of time-consuming manual alignment and improving assembly efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-17
AI Technical Summary
In the current automotive chassis assembly process, relying on manual alignment makes it difficult to guarantee accuracy, resulting in low efficiency. The alignment process between the chassis and the body is time-consuming and cannot meet the pace requirements of modern large-scale automotive production.
An automatic centering device is adopted, including a centering and alignment component, a positioning component, and an adjustment component. The centering and alignment component and the positioning component are combined to achieve automatic centering and placement of the centering and alignment component. The clamping is controlled by a motor-driven screw and a sensor. Combined with an auxiliary moving component and an adjustment mechanism, it can adapt to different chassis widths.
It enables rapid and automatic centering of the chassis, improving assembly efficiency, reducing manual adjustment time, and increasing assembly accuracy and speed.
Smart Images

Figure CN223999652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile assembly technology, specifically to an automatic centering device for automobile chassis assembly. Background Technology
[0002] Chassis assembly is a crucial part of automobile manufacturing. As a key component of a car, the assembly precision of the chassis directly affects the overall performance, driving stability, and safety of the vehicle.
[0003] Currently, car chassis are typically lifted on a hoist before being assembled and connected to the body. In traditional assembly, chassis-body alignment relies primarily on manual labor, with workers adjusting the position visually or using simple measuring tools. Manual alignment is not only inaccurate but also inefficient. After the chassis is lifted, workers need to spend considerable time and effort repeatedly adjusting it to achieve a rough alignment. This process increases labor intensity, prolongs assembly time, reduces production efficiency, and fails to meet the demands of modern mass production.
[0004] Therefore, an automatic alignment device for automobile chassis assembly is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic alignment device for automobile chassis assembly in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] An automatic alignment device for assembling an automobile chassis includes a base, a column fixedly connected to the top surface of the base, a mounting shell fixedly connected to the top of the column, an alignment and straightening component for pushing the two sides of the automobile chassis on the surface of the mounting shell, a positioning component for controlling the operating range of the alignment and straightening component on the back of the mounting shell, an adjustment mechanism for controlling the operation of the positioning component on the back of the mounting shell, and an auxiliary moving component on the top surface of the base.
[0008] Furthermore, the centering and alignment component includes a motor, which is fixedly installed on the right side of the mounting housing. The output end of the motor is fixedly connected to a first double-ended screw, and the surface of the first double-ended screw is threaded with two support rods. The ends of the support rods are fixedly connected to clamps. A sliding groove is provided through the front of the mounting housing, and the inner wall of the sliding groove is slidably connected to the surface of the support rods.
[0009] Furthermore, the positioning component includes a mounting rod, on the surface of which a through-beam sensor transmitter is fixedly mounted, and on the top surface of the support rod, a through-beam sensor receiver is fixedly mounted.
[0010] Furthermore, the adjustment mechanism includes a fixing block, which is fixedly connected to the back of the mounting shell. A second double-ended screw is rotatably connected to the surface of the fixing block, and the second double-ended screw is threadedly connected to the mounting rod. A limit block is fixedly connected to the back of the mounting shell, and the limit block is movably inserted into the mounting rod. A scale line is provided on the back of the mounting shell. A worm gear is rotatably connected to the surface of the fixing block, and a knob is fixedly connected to the rear end of the worm gear. A worm wheel is fixedly sleeved in the middle of the second double-ended screw, and the worm wheel meshes with the worm gear.
[0011] Furthermore, the auxiliary moving component includes an electric push rod, which is fixedly installed on the top of the column. The telescopic end of the electric push rod is fixedly connected to a mounting bracket, and the mounting bracket is slidably connected to the column. A roller is fixedly connected to the bottom surface of the mounting bracket, and a through groove is provided on the top surface of the base, with the groove specification being adapted to the roller.
[0012] Furthermore, the bottom surface of the base is provided with a rubber layer.
[0013] The beneficial effects of this utility model are as follows:
[0014] The base can be moved to the desired position using an auxiliary moving component, placing the lifting machine and the car chassis to be lifted inside the base. Then, the centering and aligning component clamps the left and right sides of the car chassis, achieving centering. The positioning component controls the operating range of the centering and aligning component, ensuring it immediately resets after clamping the chassis to avoid affecting subsequent chassis lifting and assembly. The adjustment mechanism adjusts the position of the positioning component, thereby adjusting the operating range of the centering and aligning component to accommodate chassis of different widths. This invention facilitates rapid and automatic centering of the car chassis, making subsequent lifting and connection to the vehicle body more accurate and faster, eliminating the need for repeated adjustments and improving assembly efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a top sectional view of the mounting shell structure of this utility model;
[0017] Figure 3 This is a rear view of the structure of this utility model;
[0018] Reference numerals: 1. Base; 2. Column; 3. Mounting shell; 4. Centering and alignment assembly; 401. Motor; 402. First double-ended screw; 403. Support rod; 404. Clamping plate; 405. Slide groove; 5. Positioning assembly; 501. Mounting rod; 502. Through-beam sensor transmitter; 503. Through-beam sensor receiver; 6. Adjustment mechanism; 601. Fixing block; 602. Second double-ended screw; 603. Limiting block; 604. Worm gear; 605. Knob; 606. Worm wheel; 607. Scale line; 7. Auxiliary moving assembly; 701. Electric push rod; 702. Mounting bracket; 703. Roller; 704. Through groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.
[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] like Figures 1 to 3As shown, an automatic centering device for assembling an automobile chassis includes a base 1, a column 2 fixedly connected to the top surface of the base 1, a mounting shell 3 fixedly connected to the top of the column 2, a centering and alignment component 4 for pushing the two sides of the automobile chassis provided on the surface of the mounting shell 3, a positioning component 5 for controlling the operating range of the centering and alignment component 4 installed on the back of the mounting shell 3, an adjustment mechanism 6 for controlling the operation of the positioning component 5 also provided on the back of the mounting shell 3, and an auxiliary moving component 7 provided on the top surface of the base 1. More specifically, the auxiliary moving component 7 can move the base 1 to the usage position, so that the lifting machine and the car chassis to be lifted are located inside the base 1. Then, the centering and aligning component 4 can clamp the left and right sides of the car chassis to achieve centering and placement of the chassis. The positioning component 5 can control the operating range of the centering and aligning component 4, so that the centering and aligning component 4 can immediately reset after clamping the chassis to avoid affecting the subsequent chassis lifting and assembly. The position of the positioning component 5 can be adjusted by the adjusting mechanism 6, thereby adjusting the operating range of the centering and aligning component 4 to adapt to the centering and placement of chassis of different widths.
[0025] The centering and aligning assembly 4 includes a motor 401, which is fixedly mounted on the right side of the mounting housing 3. A first double-ended screw 402 is fixedly connected to the output end of the motor 401. Two support rods 403 are threadedly connected to the surface of the first double-ended screw 402. Clamping plates 404 are fixedly connected to the ends of the support rods 403. A sliding groove 405 is formed through the front of the mounting housing 3, and the inner wall of the sliding groove 405 is slidably connected to the surface of the support rods 403. It should be noted that the operation of the motor 401 drives the first double-ended screw 402 to rotate. Under the action of the threads, the support rods 403 will slide along the inner wall of the sliding groove 405, thereby controlling the movement of the clamping plates 404. The clamping plates 404 then contact the two sides of the car chassis on the hoist, aligning the chassis.
[0026] The positioning component 5 includes a mounting rod 501, on the surface of which a through-beam sensor transmitter 502 is fixedly mounted, and on the top surface of the support rod 403, a through-beam sensor receiver 503 is fixedly mounted. More specifically, the position of the mounting rod 501 can be controlled by the adjustment mechanism 6 to adjust it to a suitable position, and the spacing of the through-beam sensor transmitters 502 is set to the width of the chassis mounting position. When the support rod 403 moves, the through-beam sensor receiver 503 will eventually align with the through-beam sensor transmitter 502. The through-beam sensor receiver 503 will receive the signal emitted by the mounting rod 501, and then the motor 401 will control the first double-ended screw 402 to rotate in the opposite direction, causing the support rod 403 and the clamping plate 404 to reset.
[0027] The adjusting mechanism 6 includes a fixing block 601, which is fixedly connected to the back of the mounting shell 3. A second double-ended screw 602 is rotatably connected to the surface of the fixing block 601, and the second double-ended screw 602 is threadedly connected to the mounting rod 501. A limit block 603 is fixedly connected to the back of the mounting shell 3, and the limit block 603 is movably inserted into the mounting rod 501. A scale line 607 is provided on the back of the mounting shell 3. A worm gear 604 is rotatably connected to the surface of the fixing block 601. A knob 605 is fixedly connected to the rear end of the worm gear 604. A worm wheel 606 is fixedly sleeved in the middle of the second double-ended screw 602, and the worm wheel 606 meshes with the worm gear 604. It should be noted that by rotating the knob 605, the worm gear 604 is driven to rotate, which in turn drives the worm wheel 606 meshing with it to rotate, thereby controlling the rotation of the second double-ended screw 602. Under the action of the thread, the mounting rod 501 will slide along the inner wall of the limit block 603, thereby adjusting the position of the mounting rod 501 and the transmitting end 502 of the through-beam sensor.
[0028] The auxiliary moving component 7 includes an electric push rod 701, which is fixedly mounted on the top of the column 2. A mounting bracket 702 is fixedly connected to the telescopic end of the electric push rod 701, and the mounting bracket 702 is slidably connected to the column 2. A roller 703 is fixedly connected to the bottom surface of the mounting bracket 702. A through groove 704 is formed on the top surface of the base 1, and the specifications of the through groove 704 are compatible with the roller 703. More specifically, by operating the electric push rod 701, the mounting bracket 702 is driven to slide and descend along the surface of the column 2, thereby moving the roller 703. Finally, the roller 703 passes through the interior of the through groove 704 and contacts the ground, causing the bottom of the base 1 to lift off the ground. This allows for rapid movement of the device using the roller 703, making device handling more convenient.
[0029] The bottom surface of base 1 is provided with a rubber layer. It should be noted that by providing a rubber layer, the device is made more stable on the ground and less prone to slipping.
[0030] In summary: The auxiliary moving component 7 moves the base 1 to the working position, placing the lifting machine and the car chassis to be lifted inside the base 1. Then, the centering and aligning component 4 clamps the left and right sides of the car chassis, achieving centering. The positioning component 5 controls the operating range of the centering and aligning component 4, ensuring it immediately resets after clamping the chassis, preventing interference with subsequent chassis lifting and assembly. The adjusting mechanism 6 adjusts the position of the positioning component 5, thereby adjusting the operating range of the centering and aligning component 4 to accommodate chassis of different widths. This invention facilitates rapid and automatic centering of the car chassis, making subsequent lifting and connection to the vehicle body more accurate and faster, eliminating the need for repeated adjustments and improving assembly efficiency.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An automatic alignment device for assembling an automobile chassis, characterized in that, The application relates to a centering and aligning device for a vehicle chassis, which comprises a base (1), the top surface of the base (1) being fixedly connected with a stand column (2), the top end of the stand column (2) being fixedly connected with a mounting shell (3), the surface of the mounting shell (3) being provided with a centering and aligning assembly (4) for pushing the two sides of the vehicle chassis, the back surface of the mounting shell (3) being provided with a positioning assembly (5) for controlling the operation range of the centering and aligning assembly (4), the back surface of the mounting shell (3) being further provided with an adjusting mechanism (6) for controlling the operation of the positioning assembly (5), and the top surface of the base (1) being provided with an auxiliary moving assembly (7).
2. The automatic centering device for assembling an automobile chassis according to claim 1, wherein The centering and aligning assembly (4) comprises a motor (401), the motor (401) being fixedly installed on the right surface of the mounting shell (3), the output end of the motor (401) being fixedly connected with a first double-head screw rod (402), the surface of the first double-head screw rod (402) being threadedly connected with two supporting rods (403), the end portions of the supporting rods (403) being fixedly connected with clamping plates (404), and the front surface of the mounting shell (3) being provided with a sliding groove (405) penetrating through, and the inner wall of the sliding groove (405) being in sliding connection with the surface of the supporting rod (403).
3. The automatic centering device for assembling an automobile chassis according to claim 2, wherein The positioning assembly (5) comprises an installation rod (501), the surface of the installation rod (501) being fixedly installed with a pair of emitting and receiving sensors (502 and 503).
4. The automatic centering device for assembling an automobile chassis according to claim 3, wherein The adjusting mechanism (6) comprises a fixed block (601), the fixed block (601) being fixedly connected with the back surface of the mounting shell (3), the surface of the fixed block (601) being rotatably connected with a second double-head screw rod (602), the second double-head screw rod (602) being threadedly connected with the installation rod (501), the back surface of the mounting shell (3) being fixedly connected with a limiting block (603), the limiting block (603) being movably inserted with the installation rod (501), the back surface of the mounting shell (3) being provided with a scale line (607), the surface of the fixed block (601) being rotatably connected with a worm (604), the rear end of the worm (604) being fixedly connected with a knob (605), the middle portion of the second double-head screw rod (602) being fixedly sleeved with a worm wheel (606), and the worm wheel (606) being in meshing connection with the worm (604).
5. The automatic centering device for assembling an automobile chassis according to claim 1, wherein The auxiliary moving assembly (7) comprises an electric push rod (701), the electric push rod (701) being fixedly installed on the top portion of the stand column (2), the telescopic end of the electric push rod (701) being fixedly connected with a mounting frame (702), the mounting frame (702) being in sliding connection with the stand column (2), the bottom surface of the mounting frame (702) being fixedly connected with a roller (703), the top surface of the base (1) being provided with a through groove (704) penetrating through, and the through groove (704) being matched with the roller (703) in specification.
6. The automatic centering device for assembling an automobile chassis according to claim 5, wherein The bottom surface of the base (1) is provided with a rubber layer.