Method and device for controlling manual precision dressing size for length of small size part

Abstract

The invention relates a method and a device for controlling manual precision dressing size for length of a small size part. The method and the device are characterized in that a sliding table is moved towards a direction of a reference surface of a substrate by a guide block along a matched guide groove on the substrate; a micrometer head is taken as a feeding mechanism of the part, thereby realizing the precision control during the size dressing of the part; the sum of the taper of a side head and the slope of a sliding table contact surface is 90 DEG so as to ensure the line-surface contact; the point-surface or line-surface contact is adopted to ensure the accuracy of size transfer; if the same-size transfer is realized in necessary, both the taper of the side head and the slope of the sliding table contact surface are 45 DEG, so that the size control in a vertical direction can be realized based on the theory that the right-angle sides are equal to each other in an equilateral right triangle; and a spring is used to realize return backlash; and meanwhile, the dressing amount can be read by data changes on a dial indicator, thereby checking the dressing size timely and conveniently. Therefore, the method and the device can realize the precision feeding of work pieces during the part dressing process and simultaneously realize the real-time online measurement.

Description

technical field [0001] The invention discloses a method and device for achieving size control during precision length trimming by manual methods, especially suitable for trimming lengths within a small range, and belongs to the technologies of micro-feeding, mechanical measurement, fitter assembly, mechanical processing, etc. field. Background technique [0002] At present, the size control methods and devices for part length trimming mainly include: one is to process on the CNC machine tool, and the servo control is used to control the processing amount; Tool measurement to achieve size control; the third is to use micro-displacement devices, such as piezoelectric ceramic electrostrictive devices. [0003] Although the above-mentioned numerical control machining can accurately control the trimming amount, the equipment used is high in cost, large in size, complicated in operation, long in processing cycle, and not suitable for real-time processing. Especially in the case ...

AI Technical Summary

Problems solved by technology

Commonly used measuring methods are vernier calipers and micrometers. In order to control the trimming amount, the parts are usually clamped in a vise and then trimmed with sharp tools such as files. This method is difficult to accurately control the trimming amount

[0005] In order to achieve more precise control, there are also micro-displacers made of piezoelectric and electrostrictive principles in commercially available products, but this instrument is quite precise and expensive, and is often used in micro- and nano-scale applications

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