An automatic identification and error prevention device for assembly inspection

By using three sets of metal sensors and detection limit sleeves in synergy, combined with limit posts and an audible and visual alarm system, the problem of insufficient coverage and missed detection of bolts on the bottom cover of automobile engines has been solved, achieving full inspection and real-time alarm, thus improving the accuracy of inspection and product quality.

CN224517732UActive Publication Date: 2026-07-17ASIMCO NVH TECH CO LTD ANHUI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ASIMCO NVH TECH CO LTD ANHUI
Filing Date
2025-06-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for inspecting bolts on the bottom cover of automotive engines suffer from problems such as low coverage, incomplete sampling, and easy omissions during manual inspection, leading to defective products reaching customers and causing customer complaints.

Method used

Three sets of metal sensors work together with the detection limit sleeve to achieve synchronous detection of bolt length and width. Combined with the directional cooperation of the middle limit post and the top limit groove, an integrated audible and visual alarm system provides real-time alarm, ensuring 100% full inspection and the objectivity of the test results.

Benefits of technology

This enabled full inspection of bolts, reduced human error, eliminated incorrect and missed inspections, improved the consistency of test results and product qualification rate, and reduced customer complaints.

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Abstract

This utility model relates to an automatic identification and error prevention device for assembly inspection, belonging to the field of product inspection technology. It includes an inspection chassis, on which a testing base for inspecting the product is fixed. A detection limiting sleeve for limiting the movement of the product's mounting bolts is installed on the testing base. Inside the inspection chassis, metal sensors are installed for detecting the ends of the product's mounting bolts. This application, through the coordinated action of three sets of metal sensors and the detection limiting sleeve, simultaneously detects the length of the product's bolts (metal sensor contact judgment) and the width (limiting sleeve fit judgment), solving the randomness and missed detection problems of manual sampling inspection and ensuring that each product undergoes dual-dimensional inspection.
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