Machine tool laser compensation device for slender shaft machining and compensation method conducted though machine tool laser compensation device

Abstract

The invention discloses a machine tool laser compensation device for slender shaft machining and a compensation method conducted though the machine tool laser compensation device. The device comprises a self-compensation center frame, springs, supporting rods, lead screws and motors. The self-compensation center frame is provided with a groove body which is formed in the thickness direction of the self-compensation center frame in a penetrating manner, and the groove body is round. The springs are arranged on the supporting rods in a sleeving manner and located on the outer side of the self-compensation center frame, one end of each spring is connected with the corresponding supporting rod, the other ends of the springs are connected to the self-compensation center frame, and the supporting rods are arranged on the self-compensation center frame in a sliding manner and arranged in the axial direction of the groove body. The first ends of the supporting rods face the center of the groove body, the second ends of the supporting rods are connected with nuts, the nuts are in threaded connection to the lead screws, and the lead screws are in transmission connection with the motors. According to the machine tool laser compensation device for slender shaft machining, the problem that when a slender shaft is turned and machined, machining precision is affected due to bending deformation of a workpiece can be solved, the response speed is high, and accurate compensation resetting can be conducted through a reverse compensation method.

Description

technical field [0001] The invention belongs to the technical field of machine tool processing, and in particular relates to a machine tool laser compensation device for slender axis processing and a compensation method using the same. Background technique [0002] Slender shafts are relatively common in industrial production. In order to process the slender shafts to meet the needs of subsequent production, it is usually necessary to set the slender shafts on a machine tool and turn the slender shafts through the machine tool. [0003] Due to the poor rigidity of the slender shaft, when the slender shaft is turned by the machine tool, under the combined action of the gravity of the slender shaft itself, the cutting force of the turning tool and the centrifugal force of high-speed rotation, the slender shaft will bend, which will affect the turning of the workpiece precision. [0004] When the workpiece is being processed, system excitation will occur. The system excitation...

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Problems solved by technology

[0003] Due to the poor rigidity of the slender shaft, when the slender shaft is turned by the machine tool, under the combined action of the gravity of the slender shaft itself, the cutting force of the turning tool and the centrifugal force of high-speed rotation, the slender shaft will bend, which will affect the turning of the workpiece precision

[0004] When the workpiece is being processed, system excitation will occur. The system excitation, the gravity of the slender shaft itself, the cutting force of the turning tool and the centrifugal force of high-speed rotation will make the deformation mode and direction of the slender shaft complicated and difficult to control.

[0005] Therefore, when the slender shaft rotates at high speed, it is prone to bending deformation due to centrifugal force and turning force during turning. The more serious the bending occurs, the greater the vibration will be during turning. It is difficult to effectively guarantee the accuracy of the surface

[0006] At the same time, a lot of heat will be generated during turning. Since the generated heat is difficult to diffuse, and the expansion of the wire is very large, it is also very easy to press the two ends of the slender shaft when the two ends of the slender shaft are tightly pressed. The phenomenon of bending deformation

[0007] The bending deformation of the slender shaft will reduce the precision of the workpiece processing process, and seriously affect the subsequent production of the workpiece, and even make the entire workpiece invalid

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