Limiting structure for clamping automobile rear roof

The automatic correction function of the electric push rod and limit plate assembly solves the problem of repeated adjustments by workers during the tooling fixture positioning process, and realizes automatic positioning and efficient clamping of the rear roof of the car.

CN224030057UActive Publication Date: 2026-03-24JIANGXI SHANSHENG COMPOSITE MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing tooling fixtures and clamps require workers to repeatedly adjust the position when positioning the rear of a car, resulting in a cumbersome and inefficient operation.

Method used

The system employs components such as electric push rods, limit plates, position sensors, and electric rollers. The position sensor controls the motor to drive the limit plate to rotate, and combined with the friction between the electric rollers and the conveyor belt, it automatically corrects the position of the rear roof of the car, thus achieving automatic positioning.

Benefits of technology

It reduces the difficulty of manual operation, improves positioning efficiency and accuracy, and simplifies the clamping process on the rear of the car.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of automobiles, in particular to a limiting structure for clamping an automobile rear roof, which comprises a workbench. The device further comprises an electric push rod I, a mounting plate, an electric roller, a conveying belt, a connecting plate and the like. The workbench is fixedly connected with a plurality of electric push rods I; the telescopic end of each electric push rod I is fixedly connected with a mounting plate; each mounting plate is rotationally connected with two electric rollers; the two electric rollers located on the same mounting plate are jointly wound with a conveying belt. And each mounting plate is rotationally connected with a connecting plate. A pressing plate is driven by the telescopic end of an electric push rod I to move towards one side close to a rear jacking body, so that the pressing plate firstly makes contact with the rear jacking body and continues to move along with the telescopic end of the electric push rod I until a conveying belt makes contact with the rear jacking body for clamping and limiting, a spring rod is stretched, and then the rear jacking body is subjected to pre-positioning clamping through the pressing plate firstly; and the phenomenon that the rear jacking body displaces when the conveying belt clamps the rear jacking body is prevented.
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Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a limiting structure for clamping the rear of an automobile. Background Technology

[0002] The car's rear roof is manually moved onto the limiting structure of the tooling fixture for initial positioning, and then secured by a clamping mechanism. However, the existing tooling fixture's limiting structure requires workers to repeatedly adjust its position to ensure it accurately engages the limiting device, making the entire process cumbersome and inefficient. Therefore, the limiting structure is optimized and improved to have an active adjustment function, automatically correcting the car's rear roof position during positioning and reducing the difficulty of manual operation. Utility Model Content

[0003] To overcome the shortcomings of existing tooling fixtures that require workers to repeatedly adjust their position to accurately engage the rear roof of a car when positioning it, which is a rather cumbersome process, this utility model provides a limiting structure for clamping the rear roof of a car.

[0004] The technical solution of this utility model is: a limiting structure for clamping the rear roof of an automobile, including a worktable; it also includes an electric push rod I, a mounting plate, an electric roller, a conveyor belt, a connecting plate, a motor, a limiting plate, a motor, a fixing plate, a position sensor, and an electric push rod II; several electric push rods I are fixedly connected to the worktable; each electric push rod I has a mounting plate fixedly connected to its telescopic end; each mounting plate is rotatably connected to two electric rollers; two electric rollers located on the same mounting plate are wound together with a conveyor belt; each mounting plate is rotatably connected to a connecting plate; each mounting plate is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to the corresponding connecting plate; each connecting plate is fixedly connected to an electric push rod II; each electric push rod II has a limiting plate rotatably connected to its telescopic end, and the limiting plate is semi-cylindrical; each connecting plate is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to the corresponding limiting plate; several fixing plates are fixedly connected to the worktable; each fixing plate is fixedly connected to a position sensor.

[0005] As a further preferred option, rubber pads are also included; each conveyor belt is fixed with several rubber pads.

[0006] As a further preferred option, the rubber pad is set at an angle.

[0007] As a further preferred embodiment, it also includes spring rods and pressure plates; each mounting plate is fixedly connected to several spring rods; and each extension end of all spring rods located on the same mounting plate is fixedly connected to a pressure plate.

[0008] As a further preferred option, the connecting plate and the limiting plate are detachably connected.

[0009] As a further preferred option, a sponge is fitted on the outer side of the limiting plate.

[0010] This invention has the following advantages: A position sensor controls the motor to start, and the motor's output shaft drives the limiting plate to rotate 180 degrees, making the plane of the limiting plate contact the rear top body. This increases the contact area between the limiting plate and the rear top body, improving the limiting effect. Then, one side of the electric push rod II is controlled to move the limiting plate closer to the conveyor belt, while the other side remains stationary. This causes the limiting plate to pull the protrusion of the rear top body under frictional force, resulting in a slight rotation of the rear top body from a top-down perspective, thus adjusting its position. During this adjustment process, an electric roller can be started, causing the conveyor belt to rotate. The conveyor belt, through friction, then finely adjusts the rear top body's position in the front-back direction until the position sensor detects that the rear top body is in the correct position. This automatic correction and adjustment of the rear top body's position during positioning reduces the difficulty of manual operation.

[0011] The extension end of the electric push rod I drives the pressure plate to move closer to the rear top body, so that the pressure plate first contacts the rear top body. As the extension end of the electric push rod I continues to move, until the conveyor belt contacts the rear top body for clamping and limiting, the spring rod is stretched, and then the pressure plate first pre-positions and clamps the rear top body to prevent the rear top body from shifting when the conveyor belt clamps it. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the automobile rear top clamping limiting structure disclosed in this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the limiting structure for clamping the rear roof of an automobile disclosed in this utility model;

[0014] Figure 3 This is a partial structural diagram of the electric push rod I, mounting plate, electric roller, conveyor belt, connecting plate, motor, limiting plate, motor and rubber pad of the automobile rear top clamping limiting structure disclosed in this utility model;

[0015] Figure 4 This is a partial structural diagram of the mounting plate, electric roller, and conveyor belt of the automobile rear top clamping limiting structure disclosed in this utility model.

[0016] Wherein: 1-Workbench, 2-Rear top body, 101-Electric push rod I, 102-Mounting plate, 103-Electric roller, 104-Conveyor belt, 105-Connecting plate, 106-Motor, 107-Limiting plate, 108-Motor, 109-Rubber pad, 1010-Spring rod, 1011-Pressure plate, 1012-Fixing plate, 1013-Position sensor, 1014-Electric push rod II, 22-Protrusion. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0018] Example: A limiting structure for clamping the rear roof of a car, such as... Figures 1-4 As shown, it includes a workbench 1;

[0019] It also includes an electric push rod I 101, a mounting plate 102, an electric roller 103, a conveyor belt 104, a connecting plate 105, a motor 106, a limit plate 107, a motor 108, a fixing plate 1012, a position sensor 1013, and an electric push rod II 1014; the worktable 1 is bolted to two electric push rods I 101; each electric push rod I 101 has a mounting plate 102 fixedly connected to its telescopic end; each mounting plate 102 is rotatably connected to two electric rollers 103; the two electric rollers 103 located on the same mounting plate 102 are wound together with a conveyor belt 104; each mounting plate 102 is rotatably connected to... Each mounting plate 102 is connected to a connecting plate 105; each mounting plate 102 is bolted to a motor 106, and the output shaft of the motor 106 is fixedly connected to the corresponding connecting plate 105; each connecting plate 105 is fixedly connected to an electric push rod II 1014; each extension end of the electric push rod II 1014 is rotatably connected to a limiting plate 107, and the limiting plate 107 is semi-cylindrical; each connecting plate 105 is fixedly connected to a motor 108, and the output shaft of the motor 108 is fixedly connected to the corresponding limiting plate 107; the worktable 1 is fixedly connected to two fixing plates 1012; each fixing plate 1012 is fixedly connected to a position sensor 1013.

[0020] It also includes rubber pads 109; each conveyor belt 104 is fixed with several rubber pads 109 to increase the friction between the conveyor belt 104 and the rear top body 2 and improve the clamping and limiting effect.

[0021] The rubber pad 109 is set at an angle to increase the contact area and improve the limiting effect on the rear top body 2.

[0022] It also includes spring rods 1010 and pressure plates 1011; each mounting plate 102 is fixedly connected to several spring rods 1010; each extension end of all spring rods 1010 located on the same mounting plate 102 is fixedly connected to a pressure plate 1011.

[0023] The connecting plate 105 is detachably connected to the limiting plate 107, so that when clamping rear top bodies 2 of different sizes, the limiting plate 107 can be removed and replaced with a rear top body 2 that is suitable for different sizes, thereby improving the adaptability of clamping.

[0024] The outer side of the limiting plate 107 is covered with a sponge to reduce wear between the limiting plate 107 and the rear top body 2.

[0025] To face Figure 1 Using the direction as a reference, the operator distinguishes between front, back, left, and right directions. During use, the operator pushes the rear top body 2 from back to front onto the worktable 1. Then, the operator controls the electric push rod I 101 to move the mounting plate 102, which in turn drives the electric roller 103 and conveyor belt 104 towards the side closest to the rear top body 2, until the conveyor belt 104 contacts the rear top body 2, and the rear top body 2 contacts the arc-shaped surface of the limiting plate 107. Next, the position sensor 1013 uses a laser to correct the position of the rear top body 2. The position sensor 1013 controls the motor 108 to start, and the output shaft of the motor 108 drives the limiting plate 107 to rotate 180 degrees, so that the plane of the limiting plate 107 contacts the rear top body 2. This increases the contact area between the limiting plate 107 and the rear top body 2, improving the limiting effect. The electric push rod II 1014 on one side is controlled to move the limiting plate 107 closer to the conveyor belt 104, while the limiting plate 107 on the other side remains stationary. This causes the limiting plate 107 to pull the protrusion 22 of the rear top body 2 under the action of friction, resulting in a slight rotation of the rear top body 2 from the perspective of looking down. This adjusts the position of the rear top body 2. During the adjustment process, the electric roller 103 can be started. The rotation of the electric roller 103 drives the conveyor belt 104 to rotate. The conveyor belt 104 then drives the rear top body 2 to make fine adjustments in the front and back directions through friction until the position sensor 1013 detects that the rear top body 2 is in the correct position. Thus, the position of the rear top body 2 is automatically corrected and adjusted during the positioning process, reducing the difficulty of manual operation.

[0026] When the rear top body 2 needs to be removed, the control motor 106 is started. The output shaft of the motor 106 drives the electric push rod II 1014 and the limiting plate 107 to rotate counterclockwise from the top-down viewpoint, so that the limiting plate 107 is released from the limiting of the rear top body 2. Then, the control electric push rod I 101 drives the mounting plate 102, electric roller 103 and conveyor belt 104 to disengage from the rear top body 2.

[0027] When the electric push rod I 101 moves the mounting plate 102 and the conveyor belt 104 closer to the rear top body 2 to clamp the rear top body 2, the telescopic end of the electric push rod I 101 moves the pressure plate 1011 closer to the rear top body 2, so that the pressure plate 1011 contacts the rear top body 2 first. As the telescopic end of the electric push rod I 101 continues to move until the conveyor belt 104 contacts the rear top body 2 for clamping and limiting, the spring rod 1010 is stretched, and then the pressure plate 1011 first performs pre-positioning clamping of the rear top body 2 to prevent the rear top body 2 from displacing when the conveyor belt 104 clamps the rear top body 2.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A limiting structure for clamping the rear roof of an automobile, comprising a worktable (1); characterized in that: It also includes electric push rod I (101), mounting plate (102), electric roller (103), conveyor belt (104), connecting plate (105), motor (106), limit plate (107), motor (108), fixing plate (1012), position sensor (1013), and electric push rod II (1014); several electric push rods I (101) are fixedly connected to the worktable (1); each electric push rod I (101) has a mounting plate (102) fixedly connected to its telescopic end; each mounting plate (102) is rotatably connected to two electric rollers (103); the two electric rollers (103) located on the same mounting plate (102) are wound together with a conveyor belt (104); each mounting plate (102) has a... A connecting plate (105) is rotatably connected; a motor (106) is fixedly connected to each mounting plate (102), and the output shaft of the motor (106) is fixedly connected to the corresponding connecting plate (105); an electric push rod II (1014) is fixedly connected to each connecting plate (105); a limiting plate (107) is rotatably connected to the telescopic end of each electric push rod II (1014), and the limiting plate (107) is semi-cylindrical; a motor (108) is fixedly connected to each connecting plate (105), and the output shaft of the motor (108) is fixedly connected to the corresponding limiting plate (107); a number of fixed plates (1012) are fixedly connected to the worktable (1); a position sensor (1013) is fixedly connected to each fixed plate (1012).

2. The limiting structure for clamping rear roof of an automobile according to claim 1, characterized in that: It also includes rubber pads (109); each conveyor belt (104) is fixed with several rubber pads (109).

3. The limiting structure for clamping rear roof of an automobile according to claim 2, characterized in that: The rubber pad (109) is set at an angle.

4. The limiting structure for clamping rear roof of an automobile according to claim 1, characterized in that: It also includes spring rods (1010) and pressure plates (1011); each mounting plate (102) is fixedly connected to several spring rods (1010); each of the telescopic ends of all the spring rods (1010) located on the same mounting plate (102) is fixedly connected to a pressure plate (1011).

5. A limiting structure for clamping rear roof of an automobile according to claim 1, characterized in that: The connecting plate (105) and the limiting plate (107) are detachably connected.

6. The limiting structure for clamping rear roof of an automobile according to claim 1, characterized in that: The outer side of the limiting plate (107) is covered with sponge.