Electronic digital display lever indicator

Abstract

The invention provides an electronic digital display lever indicator which is related to a displacement metrologic instrument. The indicator comprises a main body, a surveying rod, a handsetting lever, a lever arm and a bell crank lever; wherein, the surveying rod is hinge jointed on the main body and provided with a measuring head, the handsetting lever of a deflector rod is arranged in the main body and provided with an upper contact side face and a lower contact side face, the lever arm is hinge jointed on the main body and provided with a upper pulling pin and a lower pulling pin which are matched with the upper contact side face and the lower contact side face on the deflector rod in the handsetting lever, the bell crank lever of a bell crank lever arm is at right angles to the lever arm and provided with a contact terminal, the lower end of a movable shaft which is arranged on the main body and can move upward and downward is contacted with the contact terminal on the bell crank lever arm, the movable grid in a capacitance grid electronic digital display assembly which is provided with a movable grid, a fixed grid and a signal processing circuit with a display screen is connected to a movable shaft, and the resolving power of the capacitance grid electronic digital display assembly is 0.01 mm or 0.001 mm. The invention uses lever reversion and lever operation to digitally display results, and has the advantages of visualized and exact reading and low manufacture cost; and in addition, the resolving power is 0.01 mm or 0.001 mm.

Description

Technical field: [0001] The invention relates to a displacement measuring instrument, in particular to an electronic digital display lever meter with a resolution of 0.01 mm or a resolution of 0.001 mm. Background technique: [0002] The currently commercially available mechanical lever dial indicators adopt mechanical lever reversing, gear transmission, and the mode of reading results through mechanical pointers and scale dials. The manufacturing process of gears with small modulus is complicated, and gaps are easy to occur in transmission, and there are artificial errors in pointer readings. And the existing electronic digital display type lever indicator, though has the display of figure, what still adopts is the gear transmission mode, also can not overcome above-mentioned shortcoming completely, still exists the problem of high manufacturing cost, inconvenient maintenance. Invention content: [0003] The purpose of the present invention is to overcome the deficiencie...

AI Technical Summary

Problems solved by technology

The manufacturing process of gears with small modulus is complicated, and gaps are easy to occur in the transmission, and there are artificial errors in the pointer readings

However, the existing electronic digital display lever dial indicator has a digital display, but it still adopts a gear transmission mode, which cannot completely overcome the above-mentioned shortcomings, and still has the problems of high manufacturing cost and inconvenient maintenance.

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