Giant magnetostrictive drive grinding machine

Abstract

The invention discloses a giant magnetostrictive drive grinding machine which comprises at least a pair of grinding heads, a fixing bracket, an electric slip ring fixing frame, a hollow shaft, an electric slip ring and a control system, wherein the electric slip ring fixing frame is mounted on the inner side of the fixing bracket; the hollow shaft is mounted on the fixing bracket through a bearing; the stator part of the electric slip ring is mounted on the electric slip ring fixing frame; the rotor part of the electric slip ring sleeves the hollow shaft and is connected with a fixing disc; the fixing disc is mounted at the other end of the hollow shaft as well as connected with a motor and a transmission mechanism; the grinding heads are driven by a micro stepper motor; the micro steppermotor and the grinding heads are slidably mounted on the fixing disc; and at least a pair of giant magnetostrictive mechanisms is arranged on the fixing disc and used for driving the grinding heads, so that the distance between the grinding heads can be adjusted. Through the giant magnetostrictive drive grinding machine, a workpiece can be circumferentially grinded under the circumstance that theworkpiece does not rotate; the giant magnetostrictive drive grinding machine is applicable to the circumstance that a long and thin workpiece needs to be circumferentially grinded or cannot rotate; and the grinding machining precision is high.

Description

technical field [0001] The invention relates to the technical field of automatic grinding machines, in particular to an automatic giant magnetostrictive driven grinding machine. Background technique [0002] The grinding machine is an important mechanical equipment in the grinding field. There are various kinds of workpieces to be polished. Different equipment is required for different workpieces. The principle of the existing automatic grinding machine is to fix the workpiece with a fixture and make it rotate, and then pass Grinding is accomplished by longitudinal feeding of the abrasive tool. This type of grinding machine is usually used when the workpiece to be polished is easy to be fixed and rotated. Usually, the grinding accuracy is controlled by controlling the depth of the longitudinal feeding. When the workpiece needs to be circumferentially ground but When it is inconvenient to rotate, the above grinding method will no longer be applicable. For example, circular gr...

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Problems solved by technology

[0002] The grinding machine is an important mechanical equipment in the grinding field. There are various kinds of workpieces to be polished. Different equipment is required for different workpieces. The principle of the existing automatic grinding machine is to fix the workpiece with a fixture and make it rotate, and then pass Grinding is accomplished by longitudinal feeding of the abrasive tool. This type of grinding machine is usually used when the workpiece to be polished is easy to be fixed and rotated. Usually, the grinding accuracy is controlled by controlling the depth of the longitudinal feeding. When the workpiece needs to be circumferentially ground but When it is inconvenient to rotate, the above grinding method will no longer be applicable. For example, circular grinding of long joints usually requires manual operation. The amount of grinding is controlled by manual experience. The grinding is difficult and easy to cause damage to the workpiece. A large amount of dust will be generated during the grinding process. Although the staff wear protective devices, the hazards to health are still relatively large, and the work efficiency is low. The control of manual grinding accuracy mainly depends on the observation of human eyes. The grinding accuracy is low and the size is small. The grinding accuracy of the workpiece cannot be guaranteed, and cannot meet the efficiency and accuracy requirements of mass production grinding

[0003] Existing grinding machines mostly use motors and lead screw mechanisms or pneumatic hydraulic cylinders to drive abrasives for reciprocating feed movement. The structure is complex, and it is not suitable for small-sized and slender workpieces that require precise circular grinding.

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