Transmission device with high stability of three-dimensional measuring machine

Abstract

The invention relates to a transmission device with high stability of a three-dimensional measuring machine, comprising a speed reducer and a clamp device, which are fixed on framework. The invention is characterized in that a shock absorption device comprises a through connection socket which is fixed at the two ends of a steel belt and a shock absorption plate which is fixed at the other end ofthe through connection socket, while the other end of the shock absorption plate is fixed onto a fixed plate through a screw, and the fixed plate is fixed onto a measuring platform; an drive rolling wheel and a driven rolling wheel in the clamp device are used for clamping the steel belt, wherein, the driven rolling wheel is propped up on a driven block which can adjust the spacing between the drive rolling wheel and the driven rolling wheel through a compacting plate and nuts, and a guide block is fixed onto a framework chassis; in the speed reducer, a secondary belt wheel is connected with the drive rolling wheel, a primary belt wheel is connected with the secondary belt wheel through a secondary poly V-belt, and a main shaft of a servo motor is connected with the primary belt wheel through a primary poly V-belt. The invention reduces the shock of a Y directional measuring arm, thus greatly improving the stability and measuring precision of the three-dimensional measuring machine.

Description

technical field [0001] The invention relates to a highly stable transmission device of a three-coordinate measuring machine. Background technique [0002] The three-coordinate measuring machine is a new type of high-efficiency precision measuring instrument developed in the 1960s. Its appearance, on the one hand, is due to the high-efficiency processing of automatic machine tools and CNC machine tools, and the processing of more and more complex-shaped parts requires fast and reliable measuring equipment; on the other hand, due to electronic technology, computer technology, digital control The development of technology and precision machining technology provides a technical basis for the production of three-coordinate measuring machines. It can not only complete various complex measurements under computer control, but also realize the control of processing by exchanging information with CNC machine tools, and can also realize reverse engineering based on measurement data. ...

AI Technical Summary

Problems solved by technology

Although the manufacturing technology of modern three-coordinate measuring machines has become mature, with the progress of industry, it is necessary to further improve the accuracy of three-coordinate measuring machines to meet the detection of industrial manufacturing precision, analyze the mechanical structure of existing three-coordinate measuring machines, Its transmission device has a great influence on its measurement accuracy. In the transmission of the three-coordinate measuring machine, the existing transmission device mainly includes the deceleration device and the clamping device, and mainly uses belt linkage. Although this belt transmission has many advantages, However, there is still an obvious problem, that is, the belt will vibrate greatly when it is running, which will cause the three-coordinate measuring machine to vibrate during measurement, specifically the measuring arms in the three directions of the measuring machine. During the movement of the measuring arm, the load of the measuring arm in the Y direction is much larger than that of the measuring arms in the X and Z directions, and has the greatest impact on the accuracy. Therefore, the vibration of the measuring arm in the Y direction greatly affects the measurement accuracy of the CMM

Images