Direct-drive numerical control circular turntable based on hydraulic control and control method thereof

Abstract

The invention discloses a direct-drive numerical control circular turntable based on hydraulic control and a control method thereof. The direct-drive numerical control circular turntable comprises a machine body, a lower turntable, an annular sliding block, a screw rod and a transmission gear, wherein a hydraulic motor is fixedly arranged in the machine body, a speed reduction output shaft is connected with the machine body through a bearing, the lower turntable is arranged at the upper end of the machine body, the annular sliding block is fixedly arranged on the lower surface of an upper turntable, the screw rod is rotationally arranged at the lower end of a micro motor, air cylinders are symmetrically arranged on the upper side and the lower side of the interior of a protective cover, the transmission gear is rotationally arranged on the inner side surface of a limiting block, and a rubber oil pipe is arranged at the upper end of the protective cover in a penetrating mode. Accordingto the direct-drive numerical control circular turntable based on hydraulic control and the control method thereof, a novel structural design is adopted, so that a speed reduction structure is arranged in a driving structure of the device, and the driving operation is relatively stable; and the device is provided with an upper turntable rotation locking structure, so that the accuracy of rotationadjustment of the upper turntable is improved.

Description

technical field [0001] The invention relates to the technical field of machine tool processing, in particular to a direct-drive numerical control circular turntable based on hydraulic control and a control method thereof. Background technique [0002] CNC machine tool is a kind of mechanical equipment that uses automatic control system to process parts. With the rapid development of industrialization, the types and quality of CNC machine tools are gradually improving. CNC machine tools can cut, drill, chamfer and cut parts. etc., and CNC machine tools can process different materials (such as: stainless steel, plastic, alloy, acrylic, etc.), and have a wide range of operations. Some CNC machine tools need to be used in combination with a turntable during processing, which is convenient for different positions of the workpiece. processing. [0003] With the continuous installation and use of the mechanical turntable, the following problems were found during use: [0004] 1. ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a direct-drive numerical control circular turntable based on hydraulic control and its control method, to solve the problem that some existing mechanical turntables in the above background technology cannot meet the high-precision requirements of high-end numerical control machining. Traditional numerical control machining The power source of the central mechanical turntable is mainly the high-speed servo motor and the reduction transmission mechanism of the worm gear pair. This kind of driving method has problems such as slow dynamic response and elastic deformation of the mechanical transmission chain, and some existing mechanical turntables are in the process of rotation adjustment. Affected by the force of inertia during the process, it cannot stop immediately during the process of rapid rotation and stop, and the accuracy of rotation adjustment is affected.

Images