Automatic radial run-out measuring device

Abstract

The invention discloses an automatic radial run-out measuring device which comprises a frame body, a lifting mechanism, a measuring mechanism, a clamping mechanism and a controller. The automatic radial run-out measuring device has the advantages that workpiece automatic radial run-out measuring is achieved, workpiece clamping and measuring can be achieved, the whole process does not need manual interference, automatic production line online detection can be achieved by the device coordinating with a mechanical arm to perform feeding and discharging, the actions of each mechanism are controlled by the controller, measuring data is collected through the controller, and intelligent measuring is achieved; meanwhile, the automatic radial run-out detecting requirements of various types of workpieces can be satisfied, radial run-out of part elements relative to an excircle or an inner hole can be measured, and the device is wide in application range; during measuring, the space position of a measuring sensor can be set by a limit block and the measuring mechanism, and the radial run-outer tolerance measuring requirements of to-be-measured workpieces at different space positions can be satisfied.

Description

technical field [0001] The invention relates to a measuring device, in particular to an automatic radial runout measuring device. Background technique [0002] The radial runout detection of the workpiece is a routine dimensional accuracy detection, which specifically refers to the maximum variation of the distance between each point on the actual surface of the measured rotating surface and the reference axis in the same cross section. Radial runout is an important measure of the accuracy of rotating workpieces. For example, the radial runout of gears is an important factor affecting the accuracy of gear transmission. The axial runout and radial runout at the rim of the automobile hub are important indicators to measure the quality of the rim. At present, the development of the manufacturing industry has put forward higher and higher requirements for the precision of parts, and how to measure radial runout efficiently and accurately has attracted more and more attention. ...

AI Technical Summary

Problems solved by technology

In conventional manual measurement, the workpiece is generally positioned and clamped by a mechanism first, and then a measuring instrument such as a dial indicator is fixed to the measuring station. Finally, the workpiece is rotated around the reference axis, and the display of the measuring instrument is observed and read. Numerical value, from which the radial runout tolerance of the measured workpiece is obtained. Obviously, the measurement efficiency is low and the measurement results are not reliable

In automatic measurement, most of them are still at the semi-automatic level at present. The automatic measurement device is complicated, and the implementation is difficult and costly. For example, the utility model patent 203310388U proposes an automatic wheel hub beating sorting instrument for online measurement of the wheel hub. For the technical solution of end face and radial runout, during the measurement process, since the hub needs to be rotated around its central axis, the hub needs to be positioned and clamped before the rotation, so a set of high-performance special fixtures and devices are required. Complex structure and high cost

[0004] It can be seen that the current measurement method for workpiece radial runout tolerance has the following limitations: 1) The manual measurement operation is cumbersome, especially when measuring a large number of workpieces, the labor intensity is high, the work efficiency is low, and the measurement accuracy is difficult to guarantee

2) It is difficult to popularize automatic measurement. There are some special machines suitable for automatic radial runout measurement of a certain or a certain type of parts. It is necessary to complete the positioning, clamping, and rotation of the workpiece. The special fixture with high performance cannot be extended to other types of parts, and the scope of use is single

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