Automatic length measuring device for sleeve parts

Abstract

The invention discloses an automatic length measuring device for sleeve parts, comprising a clamping mechanism, a positioning mechanism and a measuring mechanism. The automatically sleeve-type part length measuring device is applicable to an automatic flow production line of sleeve-type parts, effective in automatic on-line detection and easy to produce and functions in improving automation of the sleeve-type part length measurement, leading to no manual measuring errors and reliable and stable measuring result, and accordingly measuring efficiency is greatly improved; a non-contact sensor serves as a length measuring apparatus to rapidly and stably measure, without abrasion; a cylinder is matched with a dovetail slot guide rail, leading to high linear movement precision, thus coaxiality of an induction magnetic ring and an induction rod is maintained within a reasonable range, and measurement is smoothly performed with high precision.

Description

technical field [0001] The invention relates to a measuring device, in particular to an automatic measuring device for the length of sleeve parts. Background technique [0002] Sleeve parts refer to the hollow thin-walled parts in the hollow rotary parts, which are commonly used in mechanical processing. They are widely used in various machines and mainly play a supporting and guiding role. Parts have inner and outer circular surfaces with high coaxiality requirements. The main application fields are: various forms of sliding bearings supporting rotating shafts, guide sleeves for guiding tools on fixtures, cylinder liners for internal combustion engines, hydraulic cylinders in hydraulic systems, and other uses sleeve. [0003] Sleeve parts are mass-produced and flow-processed products. After the processing is completed, the length of the parts needs to be measured. In the prior art, the length of the parts is usually calibrated by manual measurement. The measuring tools are...

AI Technical Summary

Problems solved by technology

The paper "Computer Controlled Parts Length and Dimensions Online Measuring Device" published by Yang Qinjian and others in "Modern Manufacturing Engineering" proposed an automatic measuring device that obtains parts length and dimensions by measuring the displacement of the moving knife edge, but its structure is complex and the system The complexity of the system increases the source of error; secondly, the transmission device used in the measuring device requires high precision, the price is relatively expensive, and the measurement cost is very high, so it cannot be popularized and applied; moreover, the control system of the whole measuring device is also relatively complicated, so it is difficult to obtain the implementation

[0004] It can be seen that the current length measurement of sleeve parts has the following limitations: 1) The degree of automation of manual measurement is low, and the interference of human factors is large

At present, there are many parts length measurement tools on the market, such as calipers, micrometers, etc., but due to the inherent defects of this measurement method, it cannot be automated, and manual operation is required. Human factors interfere greatly and the efficiency is low.

2) The structure of the existing automatic measuring device is very complicated, there are many sources of error, the cost performance is low, and the practicability is insufficient, so it is urgent to improve to obtain a good promotion prospect

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