具有消除间隙的杠杆式内径表

Lever-type internal diameter gauge for eliminating gap

Abstract

具有消除间隙的杠杆式内径表。内径表测量零件的内尺寸及其形状误差,是通过内径表架的主体一端装有活动测头,当活动测头移动时,使杠杆回转,通过顶杆推动指示表的测头,使指示表指针回转来完成的。但此种结构的活动测头与杠杆间的空行程无法消除,反映在表上是指针不回原位,示值稳定性差。具有消除间隙的杠杆式内径表,其组成包括:主体2、活动测头1、杠杆3、顶杆4和锥弹簧5,所述的主体2的一端装有活动测头1,在所述的活动测头1上装有锥弹簧5,所述的活动测头1的移动,使杠杆3回转,活动测头1始终与杠杆3接触。该产品用于测量零件的内尺寸及形状误差上。
The utility model relates to a lever inner diameter meter able to eliminate gaps. An inner diameter meter is applied to measure tolerance of an inner dimension and the shape, which is achieved in the way that a movable probe is provided at one end of the main body of the inner diameter meter frame; when the movable probe moves, the lever is driven to revolve and the probe of the indicator is driven by the mandrel so that the needle of the indicator revolves. But this structure can not remove invalid stroke between the movable probe and the lever, which makes the needle not able to restore and provides a poor indicating stability. The lever inner diameter meter able to eliminate gaps in the utility model comprises a main body (2), a movable probe (1), a lever (3), a mandrel (4) and a tapered spring (5); wherein the movable probe is provided at one end of the main body (2), the tapered spring is provided on the movable probe (1); moving of the movable probe (1) enables the lever (3) to revolve; the movable probe (1) contacts with the lever (3) all along. The utility model is applied to measure tolerance of an inner dimension and a shape.

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