Detection device of distance between crankshaft locating surface and axis, and usage method thereof

Abstract

The invention discloses a detection device of distance between crankshaft locating surface and axis, and usage method thereof. The detection device comprises a joint lever, and a locating device and ameasuring device both arranged on the joint lever; the locating device comprises a connecting rod locating frame, a connecting rod locating block, and two main shaft locating blocks in the form of areversed Y; the measuring device comprises a dial indicator and a L-shaped dial indicator frame; the main shaft locating blocks, the connecting rod locating frame and the dial indicator frame are connected on the joint lever serially through connection holes. The detection device provided by the invention is light in weight and convenient to take and operate quickly, and reduces fatigue strength of carrying a crankshaft in the conventional platform detection method. Detection can be completed quickly within 10 seconds, time for adjusting the crankshaft to a horizontal plane in the conventionalplatform detection method is reduced, and product detection efficiency is improved. The detection device can perform online real-time detection, can discover quality problems in production, and reduces risks of failure in quickly discovering the quality problems in production of the conventional platform detection method. The detection device and the usage method thereof provided by the inventionare suitable for being generalized and used in mass industrial production.

Description

Technical field [0001] The invention belongs to the technical field of automobile parts manufacturing, and specifically relates to a detection device for the distance between a crankshaft positioning surface and a shaft center and a method of use thereof. Background technique [0002] The crankshaft is a slender and complex workpiece. In an automobile engine, it is a long shaft that rotates at high speed. It is mainly composed of a main shaft journal, an oil seal journal, a gear journal, a pulley shaft, and a crank arm. [0003] Crankshaft is a key component of automobile engine, and its assembly requirements are high. Some of the crankshafts need to use the positioning surface for positioning during assembly, so the distance between the positioning surface and the axis needs to be guaranteed. At present, in the machining industry, this size is usually tested on the platform, and tools such as support frame, height ruler, dial indicator and so on are needed. This type of detectio...

AI Technical Summary

Problems solved by technology

This kind of detection method needs to manually transport the crankshaft to the platform, which is labor-intensive; it takes more than 5 minutes to complete the detection of a crankshaft, and the detection efficiency is low; because off-line detection is required, when there is a size defect, it cannot be found online in time. It is easy to cause multiple products to have the same quality problem

Images