Numerically controlled index plate

Abstract

The invention provides a numerically controlled index plate, which comprises a box. A transversely-arranged double-lead screw rod is mounted in the box; a spindle horizontally perpendicular to the double-lead screw rod is mounted on the upper part of the double-lead screw rod, and a double-lead worm wheel engaged with the spindle is mounted on the spindle; a servo motor is further mounted on one side of the box, and a transmission shaft of the servo motor is connected with the double-lead screw rod through a connecting cylinder; the box comprises a gas brake base and an upper box body, the middle of the upper end of the upper box body is provided with an oil sealing counter bore penetrating through a first mounting hole, and an oiling screw plug is mounted at the oil sealing counter bore;and a sealing counter bore is further formed in one tip of the upper end of the upper box body, a steel ball is mounted in the sealing counter bore, and a fastening screw is mounted on the upper partof the steel ball. The oil sealing counter bore is formed in the top of the upper box body, the oiling screw plug is arranged in the oil sealing counter bore to adjust the oil pressure, and thus the phenomenon that in the engaged process of the worm wheel and a worm, the oil pressure at the junction of the upper box body and a lower box body is large, and consequently an oiling opening is prone tooil leakage is avoided.

Description

technical field [0001] The invention relates to the field of indexing machine preparation, in particular to a numerically controlled indexing plate. Background technique [0002] At present, the numerical control indexing table is a kind of machine tool accessory that clamps the workpiece on the chuck or between two centers, and makes it rotate, index and position. It is widely used in milling machines, drilling machines and surface grinders; The dial usually includes a motor, a worm gear pair, and an indexing plate. The indexing plate and the worm wheel rotate at the same time, so the angle of rotation of the worm wheel is the angle displayed by the indexing plate. When working, the motor is connected to the worm drive and drives the worm clockwise Or turn counterclockwise, the worm wheel and the worm mesh with each other so that the worm wheel rotates according to the set degree. [0003] In the prior art, just like patent document 1: CN201320412459.3 patent, this inventi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a numerically controlled indexing plate, which solves the problem that the oil opening of the existing numerically controlled indexing plate is set on one side of the worm, and during the engagement process of the worm gear and the worm, the oil pressure at the joint of the upper and lower boxes is relatively high, which makes oiling Defects where oil leakage is prone to occur at the opening

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