Fine adjustment locking mechanism for precision measurement

Abstract

The invention discloses a fine adjustment locking mechanism for precision measurement, and relates to the technical field of precision measurement. The device comprises a shell, and a bearing is fixedly inserted into one end of the shell; a fine adjustment screw rod is inserted and fixed in the center position in the bearing; the inner wall of the shell is in threaded connection with a locking screw sleeve; a check ring and an elastic bushing are respectively sleeved between the inner end part of the locking screw sleeve and the peripheral side surface of the fine adjustment screw rod; steel balls are arranged between the check ring and the elastic lining in an annular array mode. And an annular retainer matched with the steel balls is fixedly inserted into the inner wall of one end of the locking screw sleeve. According to the invention, centripetal force is generated by the inner conical surface of the locking screw sleeve and the check ring under the action of the plurality of steel balls, so that the elastic bushing deforms to generate friction force on the fine adjustment screw rod to form rotary damping, and the rotary damping can be adjusted and the rotary force can be properly adjusted by rotating the locking screw sleeve, so that the accuracy of manual alignment is improved, and the production efficiency is improved. After the scribed line is aligned, the rotating force of the locking screw sleeve is increased, the locking state can be kept, the locking is accurate, and the operation precision of measurement is ensured.

Description

technical field [0001] The invention belongs to the technical field of precision measurement, in particular to a fine-tuning locking mechanism for precision measurement. Background technique [0002] Measurement technology is a cutting-edge science with its own professional system, covering a variety of disciplines, with strong theoretical and practical aspects. Familiarity with the basic knowledge of measurement technology is the basis for mastering measurement skills and independently completing the measurement of geometric parameters of mechanical products. Precision measurement is based on the concept of space coordinate system, and the basic elements are point, line and circle. In the coordinate system, there can be a variety of corresponding combinations between elements: such as point-to-point distance, point-to-line (vertical), point-to-circle distance, circle-to-line (vertical) distance, circle-to-circle (vertical) distance, Circle to line (vertical) distance, int...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a fine-tuning locking mechanism for precision measurement, through the inner tapered surface of the locking screw sleeve and the end surface of the retaining ring to generate centripetal force under the action of a plurality of steel balls, the elastic bush can be deformed The fine-tuning screw produces friction to form rotation damping, which solves the problem of low accuracy of existing precision measuring equipment

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