What are the characteristics of centerless grinders and ordinary grinders?
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Centerless grinder mechanism performance compared with ordinary grinder has the following characteristics:
1. Continuous processing, no need to retract the knife, clamping the workpiece, etc. The copying time is short and the productivity is high.
2, bracket and guide wheel positioning mechanism than the ordinary cylindrical grinder top, central frame mechanism support rigidity, cutting amount can be larger, and is conducive to the processing of slender shaft type workpiece, easy to achieve high-speed grinding and strong grinding.
3, centerless grinding machine workpiece by the outer circle positioning in the positioning mechanism, the amount of grinding is the remainder of the workpiece diameter, so the wear of the grinding wheel, the compensation of the feed mechanism and the repetitive positioning accuracy of the cutting mechanism error on the accuracy of the diameter of the diameter of the part . Only half of the ordinary cylindrical grinder does not need to hit the center hole, and it is easy to realize the automation of loading and unloading.
4ã€Wheel-grinding centerless grinding machine can increase the machining allowance each time through the type mechanism. When the cutting-in-grinding can be performed on the complex surface, it can be sequentially ground or multiple grinding wheels. The productivity is high and the application scope is wide.
5. Centerless grinders There is no mechanism to guarantee the relative positional accuracy (concentricity, verticality, etc.) of grinding surfaces and non-abrasive surfaces. When grinding circumferentially intermittent outer surfaces, the roundness is poor.
6. It is easy to produce an odd number of secondary roundness on the grinding surface. If it is larger, it often causes the illusion that the measurement size is smaller than the maximum physical size, which affects the assembly quality and work performance.
7. The adjustment of the machine tool is complex and time-consuming. Each replacement of a workpiece with a different diameter requires adjustment of the height of the bracket, and the distance and related process parameters. Therefore, it is difficult to adjust the technology and it is not suitable for small batches and single pieces of production.