On 2018-08-08 14:48:54
2018 Heat Treatment International Specialized Exhibition on Technologies and Equ
On 2018-08-08 11:45:46
Cylindrical grinding machine is a kind of grinding machine for processing cylindrical, conical or other shape plain line developed outer surface and shoulder end face grinding machine; it is widely used and can process various cylindrical conical external surface and shoulder end face grinder.
Cylindrical grinding machine is mainly used for precision grinding of end face, outer circle and cone surface of shaft parts in batch. It is the main equipment in automobile engine industry. It is also suitable for machining shaft parts with small batch and high precision requirements in military, aerospace and general precision machining workshops.
The main engine of cylindrical grinder is composed of bed, head, tail, grinding head, driving and dust collecting device. The machine head and grinding head can rotate angle, special fixture for grinding thimble and leather roller chamfering, dynamic balance frame and roller detector are ordered by customers.
Some notes for grinding wheel in cylindrical grinder:
On the cylindrical grinder, the grinding wheel is a very important part. Therefore, we should firmly grasp some of its instructions, so let's give a detailed description.
The grinding wheel used on the cylindrical grinder shall meet the requirements for its use on the spindle bearing. Moreover, if the spindle is at low speed, it should have higher bearing stiffness. In addition, for the guide rail of grinding wheel rack, the cross roller rigid guide rail should be used, so as to have good use effect.
Factors affecting the accuracy of cylindrical grinder are as follows:
1. The influence of the equal height of grinding head, head frame and tailstock on the dimensional accuracy of workpiece. The equal height error of grinding head, head rest and tailstock will make the center line of head frame and tailstock deviate from the axis of grinding wheel spindle in space. At this time, the surface of the workpiece ground will be a hyperboloid.
2. The influence of the parallelism error of the grinding head spindle axis in the horizontal plane on the workpiece size accuracy caused by the connecting line between the head frame and tailstock center. When this error occurs, the shape of the workpiece grinded by the cylindrical grinder will be a cone, that is, the grinding wheel grinds at an angle, and the surface has spiral grinding lines.
3. The influence of the Perpendicularity Error of the grinding head relative to the guide rail of the machine tool on the machining accuracy. The final result of this error is that the axis of the spindle deviates from the center line of the head rest and tailstock. When grinding the shoulder end face, the perpendicularity error between the shoulder end face and the workpiece axis will be caused. When grinding the outer circle, it will affect the surface roughness and produce spiral grinding lines.