Spark plug

Abstract

The invention discloses a spark plug, which comprises a device main body, a transmission device, a clamping device and a test device, wherein the transmission device, the clamping device and the testdevice are arranged in the device main body; the transmission device comprises a first cavity arranged in the device main body; a first slide block is glidingly arranged in the first cavity; the testdevice is arranged in the first slide block; a second cavity is arranged in the upper side inner wall of the right side of the first cavity; a first bevel gear is rotatablely arranged in the second cavity; the lower end of the first bevel gear is fixedly connected with a lead screw; the lower end of the lead screw extends into the first slide block and is matched and connected with the first slideblock through screw threads. The outer diameter of the spark plug can be automatically measured; simplicity and effectiveness are realized; the center of the spark plug is fixed; then, the measurement is performed; the result accuracy is improved; the spark plug and the outside are isolated to a certain degree; stability is realized; the influence cannot be easily caused.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a spark plug. Background technique [0002] At present, there are many equipments for measuring spark plugs, and there are many measurement methods. In production, not only machine measurement but also sampling inspection are required. Sampling inspection is usually manual measurement, which has a large error. In the prior art, the conditions of manual sampling inspection are more changeable. It is easily affected by the outside world, and the cost of using high-precision equipment is too high to be cost-effective. Therefore, an economical, efficient and high-quality spark plug outer diameter testing equipment is urgently needed. Contents of the invention [0003] The object of the present invention is to provide a spark plug for overcoming the above-mentioned defects in the prior art. [0004] A spark plug according to the present invention comprises a device body, a tran...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many equipments for measuring spark plugs, and there are many measurement methods. In production, not only machine measurement but also sampling inspection are required. Sampling inspection is usually manual measurement, which has a large error. In the prior art, the conditions of manual sampling inspection are more changeable. It is easily affected by the outside world, and the cost of using high-precision equipment is too high to be cost-effective. Therefore, an economical, efficient and high-quality spark plug outer diameter testing equipment is urgently needed

Images