Method for measuring depth of parallelism of two planes

Abstract

The invention discloses a method for measuring the depth of parallelism of two planes. The method is utilized to measure the longitudinal depth of parallelism of a front workbench and a rear workbench of a woodworking planning machine, and the method is accurate in measurement, high in accuracy, simple in operation, economical and applicative. The method is realized through the following technical scheme: the rear workbench of the woodworking planning machine is used as a datum plane, the front workbench is used as a measured plane, and the front workbench and the rear workbench are respectively divided into a plurality of measuring points with an equal interval A; indicating values are obtained by the measuring points of the rear workbench, the accumulated values of corresponding indicating values are calculated, an error curve L of the rear workbench is drawn, and the head point A and the tail point B of the error curve are connected to form a datum line AB; indicating values are obtained by the measuring points of the front workbench, the accumulated values of corresponding indicating values are calculated, and an error curve M of the front workbench is drawn; then the high vertex and the lower vertex of the curve M are respectively passed to form a parallel line parallel with the datum line AB, and the coordinate distance f in a z direction between the two parallel straight lines is the error value of the longitudinal depth of parallelism of the front workbench and the rear workbench conforming to the examination requirement.

Description

technical field

[0001] The invention relates to a method for measuring the parallelism of two planes, in particular to a method for measuring the longitudinal parallelism of the front and rear workbenches of a woodworking planer. Background technique

[0002] In the precision requirements of woodworking planers, the longitudinal parallelism of the front and rear worktables is stipulated as the geometric accuracy inspection item of the whole machine, which is a key inspection item. Whether this parallelism meets the requirements is directly related to whether the woodworking planer has "head gnawing" and other bad phenomena during the working process, which seriously affects the processing quality of the planer. At present, the method of measuring the longitudinal parallelism of the front and rear worktables of the woodworking planer is to measure with a flat ruler, a gauge block, and a feeler gauge. The front and rear worktables of the woodworking planer are longer (some fro...

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