Three-harmonic CNC five-axis turntable

Abstract

The invention discloses a three-harmonic numerically controlled five-axis turntable, which comprises: a fixed seat; a fourth numerically controlled axis part, which is arranged on the fixed seat, and the fourth numerically controlled shaft part provides horizontal circumferential rotation and braking for a workpiece to be processed; The disc tailstock is set on the fixed seat, and the disc tailstock is driven by the rotation of the fourth axis of the CNC, and the disc tailstock also has braking ability; the transition piece is also set on the CNC fourth axis. On the four-axis part and the disc tailstock, and rotate with the rotation of the fourth numerical control axis and the disc tailstock; the fifth numerical control axis, which is arranged on the transition piece, is used to fix the fifth axis of the numerical control The workpiece is processed, and it provides circumferential rotation and braking perpendicular to the horizontal direction for the workpiece to be processed. The invention has the advantages of simple structure, reasonable design, modular structure, convenient installation, no risk of oil leakage, long precision maintenance time, maintenance-free, small backlash, high rigidity, high precision, and small volume and weight.

Description

technical field [0001] The invention relates to the technical field of machine tool accessories, and more particularly, the invention relates to a third-harmonic numerical control five-axis turntable. Background technique [0002] The CNC five-axis turntable is an important accessory of the CNC machining center. It can provide the machine tool with the fourth and fifth rotational degrees of freedom in addition to the three degrees of freedom in XYZ. With the common five-axis linkage system on the market, it can process the Parts with complex surfaces are an important part of some high-end CNC machine tools. At present, there are two main types of CNC five-axis turntables on the market. One is composed of two sets of worm gear transmission systems with rotating axes arranged perpendicular to each other, combined with a disc tailstock and a corresponding frame, and the other is composed of two sets of rotary The DD motor transmission system whose axes are perpendicular to eac...

AI Technical Summary

Problems solved by technology

The former transmission system is a worm gear transmission, which needs to be soaked in lubricating oil to run, easy to wear, has a short precision retention time, large backlash, requires regular internal clearance adjustment and oil change maintenance, complex installation, easy oil leakage, volume weight Large and other disadvantages, the latter transmission system is a DD motor, and the output accuracy is completely determined by the encoder, which has the disadvantages of high cost, poor rigidity of the whole machine, and complicated maintenance.

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