Simple detection device of circularity and linearity of bar stock

Abstract

The present invention provides a simple detection device of circularity and linearity of bar stock. Four parallel guide rails are installed on a platform, consisting of a linear motor work guide rail, a guide rail 1, a speed regulation motor work guide rail and a guide rail 2. The linear motor work guide rail is provided with a linear motor and a gauge stand 2; the speed regulation motor work guide rail is provided with a speed regulation motor 1 and a speed regulation motor 2, a double-row cylindrical roller bearing 1 is connected with the speed regulation motor 1 and the speed regulation motor 2, and a double-row cylindrical roller bearing 2 is arranged at a corresponding bearing pedestal; the gauge stand 1 is arranged on the guide rail 2; when rod materials to be detected are putted on the double-row cylindrical roller bearing 1 and the double-row cylindrical roller bearing 2, a dial indicator is arranged on the gauge stand 1, the dial indicator and the position of the rod materials to be detected are observed, the rod materials to be detected begin to rotate, and the maximum difference of pointer bouncing is recorded; and the dial indicator is arranged on the gauge stand 2, the rod materials to be detected are contacted with the guide rail 1, and the reading difference during the movement of the pointer is recorded. The simple detection device of circularity and linearity of bar stock is rapid, accurate in detection, low in cost, simple in operation, high in rechecking efficiency and saved in both time and labor.

Description

technical field [0001] The invention belongs to the technical field of off-line detection of round rods after finishing, and specifically relates to a simple detection device for roundness and straightness of rods, which is especially suitable for fast and accurate re-inspection of rods, mainly for detecting the straightness of round rods , roundness. Background technique [0002] In the actual measurement work, the problem of detection of shape and position tolerances of shaft workpieces is often encountered. On the basis of elemental and structural analysis, using different measurement tools and different detection methods will bring different detection results, and the measurement accuracy and repeatability will also be different. According to the actual production situation of the company, it is necessary to carry out offline re-inspection on the round bar processed by the peripheral processing factory to ensure that the bar size meets the production requirements, and t...

AI Technical Summary

Problems solved by technology

[0003] Three coordinate measuring machines, cylindricity meters and measuring projectors that exist on the market can all detect the roundness, cylindricity and even straightness of bars with high accuracy, but in terms of on-site working conditions , which has its limitations: three-coordinate table measurement, cylindricity meter, its detection is by probe detection, its detection accuracy is subject to the requirements of the measurement environment, such as temperature, humidity, vibration problems, etc., and the cost is high, and for simple The re-inspection bar has a certain waste of functions, and is more suitable for the detection of precision parts

[0004] In summary, it can be found that there is currently no roundness and straightness measuring instrument suitable for diameters of 40~80 and lengths of 700~1000 bars on the market.

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