A spring detection tool

Abstract

The invention discloses a spring detection tool, which integrates free length detection, pitch and its uniformity detection, and inner and outer diameter detection on one tool, which not only optimizes the detection accuracy, but also makes the inspection process more convenient. The key points of its technical solution are: it includes a horizontal detection assembly for measuring the free length and a vertical detection assembly for detecting the inner and outer diameters of the spring. The horizontal detection assembly includes a support frame, a parallel light source, and a smooth platform for placing the spring. and a scale plate, the smooth platform is made of a transparent material, and the parallel light source, the smooth platform and the scale plate are arranged in parallel from top to bottom; the vertical detection assembly includes a base, a spring limit seat, an inner diameter measurement mechanism and an outer diameter measurement mechanism; The end of the support frame is rotatably connected with the base, and the support frame can be turned over in the vertical plane in the range of 0-90°. When the support frame is turned up 90°, the spring placed on the smooth platform can slide down to the spring limit seat superior.

Description

technical field [0001] The invention relates to the field of tool design and manufacture, in particular to a spring detection tool. Background technique [0002] After the spring production is completed, in order to ensure the pass rate of the spring, judge the dimensional accuracy of the spring, and evaluate the performance of the spring, it is necessary to carry out necessary and performance inspections of the spring, and the spring that reaches the qualified standard can only be shipped from the factory. The inspection content of the spring includes the inspection of the free height (or free length) of the spring, the inspection of the inner and outer diameter of the spring, the inspection of the verticality, and the inspection of the spring pitch and uniformity. [0003] At present, manufacturers often use vernier calipers, micrometers, detection sleeves, angle gauges and other tools for inspection, and for different inspection items, they need to be inspected in multipl...

AI Technical Summary

Problems solved by technology

[0004] 1. The operator uses a vernier caliper to measure the maximum outer diameter of the spring. However, it is difficult to keep the arm stable when operating the vernier caliper by hand, resulting in inaccurate measurement results. When measuring the minimum inner diameter of the spring, the vernier caliper is difficult to reach into the deep interior and cannot be obtained. Accurate minimum inner diameter value;

[0005] 2. At present, a steel tape measure is used to measure the free height (or length) of the spring. Due to the irregular shape of the spring, it is difficult to obtain more accurate length data only by visually observing the tape measure, resulting in large errors;

[0006] 3. Since there are many items involved in the inspection, it will be divided into multiple steps and sequentially inspected, which will lead to too long inspection time, consume more manpower, and be inefficient

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