Special measurement tool for measuring coaxiality and belt depth

Abstract

The invention discloses a special measurement tool for measuring coaxiality and a belt depth of a casting shell blank, which comprises a measurement body 1, a nut 2, an adjusting screw rod 3, a two-head screw rod 4, a pressing plate 5, a fixing plate 6, a bush 7, a coaxiality measurement rod 8, a flange nut 9, a cylindrical pin 10, a bush 11, a bush 12, a coaxiality measurement rod 13, a diamond-shaped pin 14, a coaxiality measurement mandril 15 and a length standard mandril 16. The coaxiality and the belt depth of the blank can be timely measured respectively. The coaxiality is measured as in a figure 1. The measurement tool is convenient in operation, high in reliability, simple in structure and high in measurement precision.

Description

technical field [0001] The invention discloses a special measuring tool for measuring the coaxiality of a blank and the depth of an annulus, which is a simple comprehensive measuring tool. Background technique [0002] In the process of producing a casting shell, the size of the protruding outer circle in the upper hole, the lower counterbore, and the protruding outer circular end surface in the upper hole of the blank as required on the drawings, and the size of the ring-shaped surface and the positioning reference hole that form a relative positional relationship with it And tolerance, because the tolerance range is too loose for machining, so that the casting blank is judged to be qualified and there are problems in machining. In addition, due to the structure of the casting product, even if it is to be measured, it can only be measured on a three-coordinate measuring instrument. , It is not convenient to measure in time during the production process, so that the quality ...

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Problems solved by technology

[0002] In the process of producing a casting shell, the size of the protruding outer circle in the upper hole, the lower counterbore, and the protruding outer circular end surface in the upper hole of the blank as required on the drawings, and the size of the ring-shaped surface and the positioning reference hole that form a relative positional relationship with it And tolerance, because the tolerance range is too loose for machining, so that the casting blank is judged to be qualified and there are problems in machining. In addition, due to the structure of the casting product, even if it is to be measured, it can only be measured on a three-coordinate measuring instrument. , it is not convenient to measure in time during the production process, so that the quality of casting products cannot be controlled, and it is easy to cause adverse consequences. Therefore, this special measuring tool is designed to monitor the quality of products in real time

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