A precise positioning and assembling tool system for automobile plastic parts

By setting a sensing mechanism and a signal conversion mechanism on the positioning plate, and using a rubber cap and pressure sensor to detect the rolling action, the problem of lack of supervision in the positioning and rolling process of automotive plastic parts is solved, and the letter markings are firmly attached and standardized.

CN224374922UActive Publication Date: 2026-06-19CHANGCHUN LINJIA AUTOMOBILE PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN LINJIA AUTOMOBILE PARTS CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the positioning and rolling process of automotive plastic parts lacks supervision, which makes it easy for markings to fall off and is not conducive to standardized operations.

Method used

Design a precision positioning assembly fixture system that includes a positioning plate and a pressure roller. The positioning plate is equipped with a sensing mechanism and a signal conversion mechanism. The operation of the operator's rolling action is detected by a rubber cap and a pressure sensor to ensure that the letter label is firmly attached.

Benefits of technology

It enables real-time monitoring of operators' actions, ensures that letter labels are firmly affixed, and promotes the implementation of standardized operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a precision positioning and assembly tooling system for automotive plastic parts, relating to the field of automotive manufacturing technology. The system includes a positioning plate and a pressure roller. The positioning plate is equipped with a sensing mechanism and a signal conversion mechanism. The sensing mechanism includes rubber caps, and the signal conversion mechanism includes a pressure sensor. A pipe is formed within the positioning plate, with both ends connected to the sensor and the rubber caps, respectively. Positioning grooves are formed on the positioning plate, and the rubber caps are evenly distributed along both sides of the positioning grooves. In this application, the positioning plate is used to position letter labels, and the pressure roller rolls the letter labels. During the rolling process, the rubber caps at both ends are sequentially installed. The pressure of the rubber caps is transmitted to the sensor through the pipe, thereby detecting and recording whether the operator's actions conform to the operation manual, ensuring the letter labels are firmly attached, and facilitating standardized operations.
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Description

Technical Field

[0001] This application relates to the field of automotive manufacturing technology, and more specifically, to a precision positioning and assembly tooling system for automotive plastic parts. Background Technology

[0002] Automotive plastic parts, including trim panels and logos, are typically attached to the vehicle body using clips. Some logos, such as letter badges, are glued using 3M adhesive. To achieve precision assembly, positioning plates are needed to help position the letter badges. Then, pressure rollers are used to roll the letter badges. Some automakers specifically require unidirectional rolling only, prohibiting back-and-forth rolling. This rolling action is performed manually by operators, lacking oversight. Improper operation can easily cause the logos to fall off, and it also hinders standardized operations for automakers. Summary of the Invention

[0003] To overcome the shortcomings of existing systems, this application provides a precision positioning and assembly tooling system for automotive plastic parts, which can solve the problems mentioned in the background art.

[0004] The technical solution adopted by this application embodiment to solve its technical problem is: a precision positioning assembly tooling system for automotive plastic parts, including a positioning plate and a pressure roller. The positioning plate is provided with a sensing mechanism and a signal conversion mechanism. The sensing mechanism includes a rubber cap, and the signal conversion mechanism includes a pressure sensor. A pipeline is opened in the positioning plate, and the two ends of the pipeline are respectively connected to the sensor and the rubber cap. A positioning groove is opened on the positioning plate, and the rubber caps are evenly distributed along both sides of the positioning groove.

[0005] In one specific implementation, the positioning plate is provided with a concave plane, the positioning groove is located at the center of the concave plane, and the rubber cap is located on the concave plane.

[0006] In one specific implementation, the sensing mechanism further includes a pressure cap, which is screwed to the positioning plate and fixes the rubber cap to the positioning plate.

[0007] In one specific implementation, the lower end of the cap is provided with a flange, and the pressure cap tightens the flange onto the positioning plate.

[0008] In one specific implementation, the signal conversion mechanism further includes an adapter seat mounted on the positioning plate, and a pressure ring screwed onto the adapter seat to press and fix the sensor onto the adapter seat.

[0009] In one specific implementation, the signal conversion mechanism further includes a pressure plate that clamps all the adapter seats to the positioning plate.

[0010] In one specific implementation, the signal conversion mechanism further includes a housing and a connector, the connector being mounted on the housing and electrically connected to all the sensors, the housing being screwed to the positioning plate.

[0011] In one specific implementation, the pipeline is filled with hydraulic oil, and air is left inside both the adapter and the rubber cap.

[0012] The advantages of the embodiments of this application are:

[0013] The letter labels are positioned using a positioning plate and then rolled with a pressure roller. During the rolling process, the rubber caps at both ends are installed in sequence. The pressure of the rubber caps is transmitted to the sensor through the pipeline, thereby detecting whether the operator's actions conform to the operation manual and recording it to ensure that the letter labels are firmly attached, which is conducive to standardized operation. Attached Figure Description

[0014] Figure 1 A schematic diagram of a precision positioning and assembly tooling system for automotive plastic parts provided for embodiments of this application;

[0015] Figure 2 An exploded view illustrating the connection relationship between the sensing mechanism and the positioning plate provided in the embodiments of this application;

[0016] Figure 3 A schematic diagram of the cross-sectional structure of the protective cover provided for an embodiment of this application;

[0017] Figure 4 An exploded view of the connection relationship between the sensor and the positioning plate provided in the embodiments of this application.

[0018] In the diagram: 10-positioning plate; 11-pipeline; 12-concave plane; 20-pressure roller; 30-sensing mechanism; 31-cap; 32-pressure cap; 33-flanged edge; 40-signal conversion mechanism; 41-sensor; 42-adapter; 43-pressure ring; 44-pressure plate; 45-protective cover; 46-connector. Detailed Implementation

[0019] The technical solution in this application embodiment is to solve the problems mentioned in the background art above, and the overall idea is as follows:

[0020] Please see Figures 1-4A precision positioning and assembly tooling system for automotive plastic parts includes a positioning plate 10 and a pressure roller 20. The positioning plate 10 is equipped with a sensing mechanism 30 and a signal conversion mechanism 40. The sensing mechanism 30 includes rubber caps 31, and the signal conversion mechanism 40 includes a pressure sensor 41. A pipe 11 is provided inside the positioning plate 10, with both ends of the pipe 11 connected to the sensor 41 and the rubber caps 31, respectively. Positioning grooves are formed on the positioning plate 10, and the rubber caps 31 are evenly distributed along both sides of the positioning grooves. The positioning plate 10 is used to position letter labels, and the pressure roller 20 rolls the letter labels. During the rolling process, the rubber caps 31 at both ends are sequentially installed. The pressure of the rubber caps 31 is transmitted to the sensor 41 through the pipe 11, thereby detecting whether the operator's actions conform to the operation manual and recording it, ensuring that the letter labels are firmly attached, which is conducive to standardized operation.

[0021] Please see Figures 1-4 The positioning plate 10 has a concave plane 12, with a positioning groove located at the center of the concave plane 12 and a rubber cap 31 located on the concave plane 12. Here, the concave plane 12 is lower than the letter mark, which makes it easier for the pressure roller 20 to press on the surface of the letter mark. The rubber cap 31 is lower than the outer perimeter of the positioning plate 10, so that when the positioning plates 10 are stacked, the rubber cap 31 can be reduced from being bumped and damaged.

[0022] Please see Figures 1-4 The sensing mechanism 30 also includes a pressure cap 32, which is screwed to the positioning plate 10 and fixes the rubber cap 31 to the positioning plate 10. Here, the pressure cap 32 is used to fix the rubber cap 31, which facilitates the replacement of the rubber cap 31.

[0023] Please see Figures 1-4 The lower end of the cap 31 is provided with a flange 33, and the pressure cap 32 presses the flange 33 tightly onto the positioning plate 10. Here, when the pressure cap 32 is pressed onto the flange 33, the pressure cap 32 is used as a sealing ring to improve the sealing performance. The cap 31 can also be freely flattened to output pressure.

[0024] Please see Figures 1-4 The signal conversion mechanism 40 also includes an adapter 42, which is mounted on the positioning plate 10. A pressure ring 43 is screwed onto the adapter 42, and the pressure ring 43 presses and fixes the sensor 41 onto the adapter 42. Here, the head of the thyristor sensor 41 is inserted into the adapter 42, and then the pressure ring 43 is tightened to fix the sensor 41 onto the adapter 42.

[0025] Please see Figures 1-4The signal conversion mechanism 40 also includes a pressure plate 44, which secures all the adapter seats 42 to the positioning plate 10. Here, after all the adapter seats 42 are in place, the pressure plate 44 is put on, and then the pressure plate 44 is screwed onto the positioning plate 10 to fix all the adapter seats 42. Then, the sensors 41 are installed one by one. In this embodiment, the surface of the adapter seat 42 that contacts the pressure plate 44 is provided with radial teeth to increase the circumferential fixing force and prevent the adapter seat 42 from rotating when the pressure ring 43 is tightened. It should be noted that a sealing ring is provided on the lower surface of the adapter seat 42 to improve the seal between the adapter seat 42 and the positioning plate 10.

[0026] Please see Figures 1-4 The signal conversion mechanism 40 also includes a protective cover 45 and a connector 46. The connector 46 is mounted on the protective cover 45 and is electrically connected to all sensors 41. The protective cover 45 is screwed onto the positioning plate 10. Here, the protective cover 45 is used to protect the sensors 41 and fix the connector 46. The connector 46 is an aviation plug connector 46, which facilitates the connection of external cables and the replacement of the positioning plate 10. It should be noted that the cables are connected to industrial control instruments. The industrial control instruments convert the raw signals of the sensors 41 into 4-20mA standard industrial control signals, and then into digital signals, which are transmitted to the computer system to record the pressure value of each sensor 41 and compare it with the preset value. In another embodiment, the connector 46 is replaced by a wireless transmitter.

[0027] Please see Figures 1-4 The pipeline 11 is filled with hydraulic oil, while air is left in both the adapter 42 and the rubber cap 31. Here, the pipeline 11, viewed from the side section, has a U-shaped communicating vessel structure. The liquid level is flush with the end face of the pipeline 11 below the rubber cap 31. The sensor 41 and the rubber cap 31 are then installed. Since air is left in both the adapter 42 and the rubber cap 31, when the rubber cap 31 is compressed, the air in the adapter 42 and the rubber cap 31 is actually compressed, as the hydraulic oil in the pipeline 11 is incompressible. Compared to the case without hydraulic oil, this increases the amount of air pressure change, making the pressure sensing more sensitive. It should be noted that the side wall of the adapter 42 has air holes. Since a significant amount of air is compressed during the installation of the sensor 41, this air can escape from the air holes, thus preventing the hydraulic oil in the pipeline 11 from being squeezed out. After the sensor 41 is installed, it is sealed with sealant. After installation, each sensor 41 needs to be zeroed and calibrated.

[0028] When using this application: the positioning plate 10 is snapped into the corresponding position on the vehicle body, and then the letter label is stuck on the vehicle body. The pressure roller 20 is used to roll from one end of the letter label to the other end, so that the six rubber caps 31 are compressed in sequence and the pressure is transmitted to the sensor 41. The sensor 41 then transmits the electrical signal to the industrial control instrument and computer system, thereby identifying the operator's rolling action. The rubber caps 31 on both sides can sense whether the pressure roller 20 is skewed when it rolls, thereby detecting whether the operator is performing the standard action.

[0029] In summary, the letter labels are positioned using the positioning plate 10 and rolled using the pressure roller 20. During the rolling process, the rubber caps 31 at both ends are installed in sequence. The pressure of the rubber caps 31 is transmitted to the sensor 41 through the pipeline 11, thereby detecting whether the operator's actions conform to the operation manual and recording it, ensuring that the letter labels are firmly pasted, which is conducive to standardized operation.

[0030] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A precision positioning and assembly tooling system for automotive plastic parts, comprising a positioning plate and a pressure roller, characterized in that, The positioning plate is provided with a sensing mechanism and a signal conversion mechanism. The sensing mechanism includes a rubber cap, and the signal conversion mechanism includes a pressure sensor. A pipe is provided inside the positioning plate, and the two ends of the pipe are respectively connected to the sensor and the rubber cap. A positioning groove is provided on the positioning plate, and the rubber caps are evenly distributed along both sides of the positioning groove.

2. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 1, characterized in that, The positioning plate has a concave plane, the positioning groove is located at the center of the concave plane, and the rubber cap is located on the concave plane.

3. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 2, characterized in that, The sensing mechanism also includes a pressure cap, which is screwed to the positioning plate and fixes the rubber cap to the positioning plate.

4. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 3, characterized in that, The lower end of the cap is provided with a flange, and the pressure cap tightens the flange onto the positioning plate.

5. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 4, characterized in that, The signal conversion mechanism also includes an adapter, which is mounted on the positioning plate. A pressure ring is screwed onto the adapter, and the pressure ring presses and fixes the sensor on the adapter.

6. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 5, characterized in that, The signal conversion mechanism also includes a pressure plate, which clamps all the adapter seats to the positioning plate.

7. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 6, characterized in that, The signal conversion mechanism also includes a protective cover and a connector, the connector being mounted on the protective cover and electrically connected to all the sensors, and the protective cover being screwed to the positioning plate.

8. The precision positioning and assembly tooling system for automotive plastic parts as described in claim 7, characterized in that, The pipeline is filled with hydraulic oil, and air is left inside the adapter and the rubber cap.