Five-coordinate locating mechanism

Abstract

The invention discloses a five-coordinate locating mechanism, which comprises an X-direction guide part, a Y-direction guide part, a Z-direction guide part, an A-direction rotating part and a working platform. The structures of the Y-direction guide part and the Z-direction guide part are the same, and moreover, the Y-direction guide part and the Z-direction guide part are arranged in a cross wayto provide the translational movement of the working platform in the X-direction and the Y-direction; the Z-direction guide part provides the translational movement of the working platform in the Z-direction and the rotation of the working platform in the B-direction through the synchronous or the asynchronous movement of Z-direction moving plates at the two sides of the Z-direction guide plate; and the A-direction rotating part provides the rotation of the working platform in the A-direction. The five-coordinate movement of the working platform is realized through mature and reliable structures like screws, guide rails, gear pairs and the like adopted by the five-coordinate locating mechanism. The five-coordinate locating mechanism has good processing and assembling properties, high locating precision, and large bearing capacity. Moreover, five coordinates control the movement in a relatively independent way, and kinematics analysis and solution are simple, therefore, the control is simpler.

Description

technical field [0001] The invention relates to the field of device positioning in machinery, in particular to a five-coordinate positioning mechanism. Background technique [0002] In the fields of CNC machining, mechanical transfer and other fields, it is often necessary to accurately position the processing and assembly parts, so the positioning device is required to realize the translational movement positioning of the parts in the X, Y, and Z directions and the rotational movement positioning in the A and B directions ( The A direction is the rotation around the X direction, and the B direction is the rotation around the Y direction). After searching, it is found that most of the positioning devices in the mechanical field are parallel-connected. The worktable is supported by multiple parallel support structures, and the movement of multiple support structures is controlled by the control mechanism, so as to realize the movement of the worktable. This parallel positioni...

AI Technical Summary

Problems solved by technology

After searching, it is found that most of the positioning devices in the mechanical field are parallel-connected. The worktable is supported by multiple parallel support structures, and the movement of multiple support structures is controlled by the control mechanism, so as to realize the movement of the worktable. This parallel positioning The control process of the device is often complicated, and the bearing capacity is weak, and the attitude adjustment range of the worktable is limited

However, the existing tandem positioning mechanism can only realize translational motion positioning in the three directions of X, Y, and Z, which cannot meet the needs of processing and assembly.

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