Measuring device and measuring method for coaxiality of horizontal punching punch of multi-directional die forging hydraulic press

Abstract

A device and method for measuring the coaxiality of a horizontal piercing punch of a multi-directional die forging hydraulic press, comprising: a measuring ruler and a force application base; the measuring ruler includes: a main ruler and an auxiliary ruler; the auxiliary ruler is placed on the root of the horizontal punch, The arc-shaped slider is in contact with the corresponding position of the root of the horizontal punch; the main ruler is placed under the root of the horizontal punch, and a thin hydraulic jack is installed under the large bottom plate of the main ruler; the bottom of the thin hydraulic jack is in contact with the inner plane of the force base . The device for measuring the coaxiality of the horizontal perforating punch of the multi-directional die forging hydraulic press of the present invention is easy to operate and easy to learn, and the measurement accuracy is high, which can theoretically reach 0.02 mm; the measured data is easy to extract and has strong referenceability, which can be directly used as a reference for adjustment; After the adjustment of the coaxiality deviation of the horizontal punch is qualified, it can not only meet the dimensional accuracy requirements of forging production, ensure the quality of the product's shape and size, but also prolong the service life of the forging die, especially the punch, and the economic benefits are obvious.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device for the coaxiality of a horizontal piercing punch of a multi-directional die forging hydraulic press. Background technique [0002] In the production of multi-directional die forging three-way valve body forgings, the left and right horizontal punches of the hydraulic press are respectively installed on the piston rods of the left and right horizontal piercing cylinders and kept coaxial with them, while the left and right horizontal piercing cylinders are respectively installed on both sides of the frame. Due to the manufacturing and installation errors of the hydraulic machine frame itself, it is difficult to ensure that the coaxiality value of the piston rod of the left and right horizontal piercing cylinders is within the ideal deviation range, that is, it is difficult to ensure that the coaxiality value of the left and right horizontal punches is within the ideal deviat...

AI Technical Summary

Problems solved by technology

Briefly, according to the theory of plane force couple, that is, when the hydraulic machine is working normally, the force couple will frequently and repeatedly act on the forging die to cause damage to it, especially for the punches in the high temperature state, including the upper punch and the horizontal punch. Fatigue failure, leading to the generation of fatigue cracks

With the influence of the forging force and the deformation of the frame itself during production, the concentricity deviation tends to expand, which has a great impact on the final forming size of the forging (such as the eccentricity of the upper vertical hole, the horizontal hole Not concentric, etc.), but more importantly, it will have a serious impact on the service life of the forging die, not only reducing the overall life of the forging die, but also one of the important reasons for the sudden breakage of the punch

Images