Rotating mechanism of bearing platform for detection

Abstract

The invention provides a rotating mechanism of a bearing platform for detection, and a base platform is fixedly arranged on the rotating mechanism; the rotating mechanism comprises a motor which is controlled by a rotational screw rod, a sliding block of which one end is fixedly connected to the screw rod and slides on a sliding rail, a connecting rod of which one end is pivoted to the sliding block, and a crank handle; one end of the crank handle is pivoted to the other end of the connecting rod, the other end of the crank handle is fixedly connected to the bearing platform; wherein when the motor acts on, the screw rod rotates to push the sliding block to slide on the sliding rail, so as to lead the connecting rod to be rotated relative to the sliding rod in a pivoting way and cause the crank handle and the bearing platform to rotate with an angle at the same time relative to the base platform.

Description

technical field [0001] The invention relates to a rotating mechanism, in particular to a rotating mechanism applied to a carrying platform for detection. Background technique [0002] In testing machines for LED, semiconductor and other testing fields, the carrying table is used to carry wafers to be tested such as LEDs and semiconductors. By rotating the carrying table at an angle, the probes passing through the testing machine will touch the wafer to be tested. The contact pad of the object, and then test the electrical properties of the object to be tested on the wafer. [0003] Generally, a commonly used testing machine uses a belt on the side of the loading platform, and the belt is driven by a motor to make the loading platform rotate at an angle. However, since the carrier must maintain this angle, the use of the belt will cause gap density problems, which will affect the rotation accuracy of the carrier, and finally lead to poor electrical testing of the wafer DUT. ...

AI Technical Summary

Problems solved by technology

[0009] However, the disadvantage of the rotary mechanism 2 is the same as figure 1 The positioning system 1 is the same, when the motor 20 is driven, the screw 21 rotates so that the connecting rod 22 moves, the screw 21 not only generates a force applied horizontally to the direction of the screw 21, but also generates a force not horizontal to the direction of the screw 21, Easy to deform and affect accuracy

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