Measurement method for depth measurement device for sealed groove

Abstract

The invention discloses a measurement method for a depth measurement device for a sealed groove, and the method comprises the steps: clamping an opening end part of a positioning column on the outer wall of a convex ring of a zero setting boss of a dial indicator; enabling the convex ring to jack a piston body; enabling a spring to shrink; enabling the piston body to drive a moving rod to move upwards, thereby pushing a measuring head of the dial indicator to move; correcting the value of the dial indicator to be zero; clamping the opening end part of the positioning column in a sealed groove of a to-be-measured workpiece; jacking the piston body through an end face of the workpiece; enabling the spring to shrink; enabling the piston body to drive the moving rod to move upwards, thereby pushing the measuring head of the dial indicator to move; reading the value of the dial indicator, wherein the value is the depth of the sealed groove of the workpiece and the deviation value of a standard part. The method is advantageous in that an annular end face of an opening end of the positioning column is enabled to be attached to the plane of the lower end face of the piston rod; the positioning precision is high; the positioning column slides up and down along a measurement cylinder; the method solves problems in the prior art that human factors causes the deflection of the measuring head and the measurement is caused to be inaccurate; the method employs the dial indicator for reading values; and the numerical precision is higher.

Description

technical field [0001] The invention relates to the technology for measuring the sealing groove of workpieces, in particular to a measuring method of a sealing groove depth measuring device. Background technique [0002] In mechanical manufacturing, due to the inaccurate deep processing of the sealing groove, the sealing ring will wear early after use, the sealing effect will be poor, the service life will be affected, and the sealing function will be lost. In the existing measurement technology, calipers are often used to measure the depth of the sealing groove. Due to the limitation of the skill level of the measuring personnel and the accuracy of the measuring and measuring tool itself, the accuracy of the sealing groove depth with strict requirements is insufficient and the error is large. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a measurement method of a seal groove depth measuring device to achieve t...

AI Technical Summary

Problems solved by technology

[0002] In mechanical manufacturing, due to the inaccurate processing of the sealing groove depth, the sealing ring will wear early after use, the sealing effect will be poor, the life will be affected, and the sealing function will be lost

In the existing measurement technology, calipers are often used to detect the depth of the sealing groove. Due to the limitation of the skill level of the measuring personnel and the accuracy of the measuring and measuring tool itself, the depth of the sealing groove that has strict requirements for detection appears to be insufficient in accuracy and large in error.

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