Vernier scale for measuring bending radius and bending angle of numerically-controlled bending pipe

Abstract

The invention discloses a vernier scale for measuring the bending radius and bending angle of a numerically-controlled bending pipe. The vernier scale comprises a main scale, an angle scale and an auxiliary scale, wherein the angle scale is disk-like; the main scale and the auxiliary scale are strip-shaped; a main scale holder which extends in the radial direction is arranged on a disk body of the angle scale; an angle vernier scale is arc-shaped; the main scale is arranged on a disk surface of the angle scale through the main scale holder; the lower end of the auxiliary scale is connected to the center of the angle scale through a connection pin shaft and can freely rotate; the angle vernier scale is fixed on a scale body of the auxiliary scale; an inner arc-shaped edge of the angle vernier scale is in fit with a disk edge of the angle main scale; and central lines, in the length direction, of the main scale and the auxiliary scale respectively pass through the center of a circle of the angle scale. The invention has the advantages that: the bending radius and the bending angle of the numerically-controlled bending pipe can be accurately and effectively measured; a measurement value can be accurate to 0.02 mm; the measurement accuracy of the bending angle can be 0.02 DEG; and the vernier scale has the characteristics of simple structure, low manufacturing cost, easiness in assembly and operation and convenience for subsequent calculation.

Description

technical field [0001] The invention relates to a vernier scale for measuring the bending radius and bending angle of a numerically controlled elbow. Background technique [0002] Bend pipe parts are widely used in high-tech fields such as aviation, aerospace and automobiles because they can easily meet the urgent requirements of lightweight and toughened products in the field of advanced plastic forming. The CNC pipe bending technology is not only easy to realize the precise plastic bending of pipes, but also has the characteristics of high efficiency, energy saving and stable quality, which is convenient for digitalization and high technology. Therefore, the numerical control bending of pipes has developed into an advanced and applicable technology. However, after the pipe bending process is completed, the elastic deformation contained in the deformation area of ​​the elbow is unloaded, which causes the pipe to spring back, and the stress state inside and outside the elbow...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems existing in the prior art, such as the complex structure of the measuring device, difficult operation, complex and cumbersome follow-up processing, large size restrictions on the measurement of bent pipes, and difficulty in ensuring measurement accuracy, the present invention proposes a method for measuring numerically controlled bent pipes. Vernier scales for bend radius and bend angle

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