Pneumatic discrimination error-proofing mechanism

By using a pneumatic error-proofing mechanism that employs mechanical valves and rollers to identify differences in workpieces, the problem of vehicle model identification in automotive welding production has been solved, achieving automated error-proofing operations and improving identification and differentiation efficiency.

CN224390274UActive Publication Date: 2026-06-23JIANGLING MOTORS
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGLING MOTORS
Filing Date
2025-06-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to visually identify subtle differences between models in the same series during the automotive welding production process. Fixed error-proofing mechanisms are difficult to fully prevent errors and are inconvenient to operate, resulting in great difficulty in differentiation.

Method used

Design a pneumatic differentiation and error prevention mechanism that uses mechanical valves and rollers to identify subtle differences in workpieces. The rollers control the airflow status of different air inlets to differentiate parts from different vehicle models.

Benefits of technology

It enables automatic identification and differentiation of parts from different vehicle models, simplifies the operation process, and improves error prevention efficiency.

โœฆ Generated by Eureka AI based on patent content.

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Abstract

A pneumatic distinguishing mistake-proofing mechanism belongs to the field of automobile manufacturing, and the mistake-proofing mechanism comprises a main air inlet, a vehicle model 1 air connection, a vehicle model 2 air connection, a vehicle model 1 air outlet, a vehicle model 2 air outlet and a roller; a mechanical valve is arranged between the main air inlet and the roller, the mechanical valve is actuated between the vehicle model 1 air connection and the vehicle model 2 air connection, when a workpiece presses the roller, the mechanical valve connects the main air inlet and the vehicle model 1 air connection to ventilate, when the workpiece does not press the roller, the mechanical valve connects the main air inlet and the vehicle model 2 air connection to ventilate. The roller of the mechanical valve is used as an identifier, the slight difference of the same kind of different models of parts can be identified, the different air connections and air outlets are connected through the roller, and then the differentiation of different models of parts is realized, and then subsequent related actions are carried out.
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Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing, and specifically relates to a pneumatic error-prevention mechanism. Background Technology

[0002] In automotive welding production, the differences between the same sheet metal parts of different models within the same series are often not significant. For example, the only minor differences between the same sheet metal parts of different models may be the position of holes or the length of studs and nuts, which are difficult to identify visually. Current technology generally uses fixed error-proofing mechanisms, but these fixed mechanisms are difficult to implement comprehensively. Furthermore, they are inconvenient for operators, as manual differentiation is challenging. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pneumatic error-proofing mechanism to meet the needs of actual production and address the difficulty in implementing structural error-proofing. The specific technical solution is as follows:

[0004] A pneumatic error-proofing mechanism includes a main air inlet, an air inlet for model 1, an air inlet for model 2, an air outlet for model 1, an air outlet for model 2, and a roller. A mechanical valve is provided between the main air inlet and the roller. The mechanical valve moves between the air inlet for model 1 and the air inlet for model 2. When the workpiece presses against the roller, the mechanical valve connects the main air inlet and the air inlet for model 1 to allow air to pass through. When the workpiece does not press against the roller, the mechanical valve connects the main air inlet and the air inlet for model 2 to allow air to pass through.

[0005] This invention utilizes the rollers of a mechanical valve as an identifier to identify subtle differences between different models of the same type of parts. By connecting different air inlets and outlets through the rollers, it is possible to distinguish between different models of parts and then perform subsequent correlation. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of the utility model. Detailed Implementation

[0007] 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.

[0008] like Figure 1As shown, a pneumatic error-proofing mechanism includes a main air inlet 1, a vehicle model 1 air inlet 2, a vehicle model 2 air inlet 3, a vehicle model 1 air outlet 4, a vehicle model 2 air outlet 5, and a roller 6. A mechanical valve is provided between the main air inlet and the roller. The mechanical valve moves between the vehicle model 1 air inlet and the vehicle model 2 air inlet. When the workpiece 7 presses against the roller, the mechanical valve connects the main air inlet and the vehicle model 1 air inlet to allow air to pass through. When the workpiece does not press against the roller, the mechanical valve connects the main air inlet and the vehicle model 2 air inlet to allow air to pass through.

[0009] Using a pneumatic component interface as the air intake, when workpiece 7 is one type of vehicle model, the workpiece presses down on roller 6, and air is supplied through air port 2 connected to vehicle model 1, causing the associated components to operate. When workpiece 7 is another type of vehicle model, the workpiece cannot press down on roller 6, and air is supplied through air port 3 connected to vehicle model 2, causing the associated components to operate, thus achieving the purpose of vehicle model differentiation.

[0010] The preferred embodiments of this patent have been described in detail above. However, this patent 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 this patent.

Claims

1. A pneumatic error-proofing mechanism, characterized in that: The error prevention mechanism includes a main air inlet, a model 1 air inlet, a model 2 air inlet, a model 1 air outlet, a model 2 air outlet, and a roller. A mechanical valve is provided between the main air inlet and the roller. The mechanical valve moves between the model 1 air inlet and the model 2 air inlet. When the workpiece presses against the roller, the mechanical valve connects the main air inlet and the model 1 air inlet to allow air to pass through. When the workpiece does not press against the roller, the mechanical valve connects the main air inlet and the model 2 air inlet to allow air to pass through.