Split transmission five-shaft high-precision machining system

Abstract

The invention discloses a split transmission five-shaft high-precision machining system. A driving motor is independent of a machine tool foundation, and thus a power source and a machine tool body are separated. In addition, single-direction driving adopts a driving mode that double motors are matched with a gear, return difference can be eliminated in the driving process, driving precision is ensured, and meanwhile, vibration generated by operation of the power source (the motors) is prevented from being transferred to a machine tool. After a long period of use, motor driving precision is lowered, precision of linear operation and rotation can be still kept, thus the advantages of the five-shaft machining system such as machining precision are ensured, higher dynamic performance, feed speed and cutting speed can be obtained, better machining surface quality can be obtained, and machining efficiency is improved. Complex curved surface machining of a plurality of planes and various procedures of parts can be completed automatically, efficiently and continuously at high speed with high precision, and the split transmission five-shaft high-precision machining system is suitable for spaceflight, the military industry, automobiles, ships, medical treatment, molds and other fields.

Description

technical field [0001] The invention relates to a machine tool, in particular to a five-axis linkage system. Background technique [0002] Five-axis linkage equipment belongs to the more common equipment in CNC machine tools, and is used for processing parts with complex structures; in order to ensure the final machining accuracy, it is generally equipped with high-speed direct-connected spindles and servo systems, and ball screws are equipped in X, Y, and Z directions. And linear guide rails are directly driven by servo motors with continuously variable speed, and the B and C rotation axes use servo motors to form direct-drive turntables, which can basically guarantee stable precision and high dynamic and static characteristics; Due to the long-term relatively large torsional moment, the drive shaft of the motor, the internal rotor, and the rotating pair will be slightly deformed, causing corresponding vibrations, which will be transmitted to the linear motion of X, Y, and ...

AI Technical Summary

Problems solved by technology

[0002] Five-axis linkage equipment belongs to the more common equipment in CNC machine tools, and is used for processing parts with complex structures; in order to ensure the final machining accuracy, it is generally equipped with high-speed direct-connected spindles and servo systems, and ball screws are equipped in X, Y, and Z directions. And the linear guide rail is directly driven by the stepless variable speed of the servo motor, and the B and C rotation axes use the servo motor to form a direct drive turntable, which can basically guarantee stable precision and high dynamic and static characteristics; however, the existing direct drive structure is used Due to the long-term relatively large torsional moment, the drive shaft of the motor, the internal rotor, and the rotating pair will be slightly deformed, causing corresponding vibrations, which will be transmitted to the linear motion of X, Y, Z and the rotation of B, C Axis movement, thus affecting the final machining accuracy

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