Double-drive five-bar slider parallel mechanism CNC machining platform

Abstract

The invention relates to a double-drive five-rod slider parallel mechanism numerical control processing platform. A screw stepping motor and a gear stepping motor are respectively fixedly installed at both ends of a base plate. The screw stepping motor is connected to a screw rod covered with a screw nut. The other end of the rod is set in the screw bearing fixed on the base plate, the screw nut is connected with the bottom plate of the slider through the screw seat, and two linear guide rails are respectively installed on the base plate on both sides of the screw rod through two sets of guide rail supports. The slider bottom plate is connected to the guide rail through a linear bearing, and a hinge shaft is installed in the middle of the slider bottom plate. The other end of the hinge shaft is connected to a swing rod, which also includes a connecting rod. The other end of the drive shaft is connected with a transmission shaft, which passes through the base plate and is connected with the gear stepping motor through helical gear transmission; a workbench with processing equipment is fixed on the swing bar, connecting rod or rocker; the present invention has the advantages of compact structure, impact The advantages of small vibration, low vibration and high precision can meet the working needs of different scenarios.

Description

technical field [0001] The invention relates to the technical field of numerical control machining devices and equipment, and is a double-drive five-bar slider parallel mechanism numerical control machining platform, which has a novel, simple and reliable structure, high machining accuracy and efficiency, and is light in weight and low in cost. Background technique [0002] Existing plane processing equipment, such as inkjet printers, mounting machines, laser engraving machines and other CNC processing devices and equipment, all directly use three linear axis motion mechanisms, that is, use the X axis and Y axis linear axes parallel to the processing plane to move on the plane. For positioning moves, use the Z-axis perpendicular to the machining plane to adjust the working distance. Although the control requirements of this scheme are low and the transmission structure is simple, this scheme needs to interpolate curves and most slopes (slopes are not 0, ±1, or positive and n...

AI Technical Summary

Problems solved by technology

Although the control requirements of this scheme are low and the transmission structure is simple, this scheme needs to interpolate curves and most slopes (slopes are not 0, ±1, or positive and negative infinity), and the vibration and deviation caused by interpolation Shifting, etc. affect the processing effect, resulting in low processing accuracy and efficiency

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