The processing method of the center-less grinding machine
Release time:
2024-07-16 14:40
Source:
Only half of the ordinary cylindrical grinder, no need to hit the center hole, and easy to achieve on and off the material automation.
There are three main grinding methods for centerless cylindrical grinding machines; pass-through, cut-in, cut-in, and pass-through, through-type centerless grinding. The workpiece is fed along the grinding wheel axis direction for grinding. Adjust the slight inclination of the guide wheel axis to achieve the workpiece axial feed. Suitable for grinding slender cylindrical workpieces. Short shafts and sleeve workpieces without center holes, etc. Cut-in centerless grinding. There is an axial positioning fulcrum on the pallet, and the workpiece is supported on a certain position of the pallet, and the grinding wheel or guide wheel is cut into for grinding. Used for grinding workpieces with shoulders or bosses as well as cones, spheres or other rotary workpieces. Cut-through centerless grinding is a composite of the two. In addition, there are tangent-feed grinding and end-feed grinding in which the workpiece with steps is advanced and retracted in the axial direction. The productivity of the centerless cylindrical grinder is higher. More for mass production, easy to automate.
The characteristics of the centreless cylindrical grinder The performance of the mechanism of the centreless cylindrical grinder has the following characteristics compared with the ordinary cylindrical grinder:
1. Continuous processing, no need to retreated, short replication time for clamping workpieces, and high productivity.
2, bracket and guide wheel positioning mechanism than ordinary cylindrical grinder center, center frame mechanism support rigidity is good, the amount of cutting can be larger, and is conducive to the processing of slender shaft workpiece, easy to achieve high-speed grinding and strong grinding.
3. The workpiece of the centerless cylindrical grinder is positioned on the positioning mechanism by the outer circle. The grinding amount is the allowance on the diameter of the workpiece. Therefore, the wear of the grinding wheel, the compensation of the feeding mechanism and the repeated positioning accuracy error of the cutting mechanism affect the dimensional accuracy of the part diameter. Only half of the ordinary cylindrical grinder, no need to hit the center hole, and easy to achieve on and off the material automation.
4, wide grinding wheel centerless grinding machine through the mechanism, can be used to increase the machining allowance each time, in the cut grinding can be on the complex surface of the sequential grinding or multi-grinding wheel grinding, high productivity, wide application range.
5. The centreless cylindrical grinder has no mechanism to ensure the relative position accuracy (coaxiality, perpendicularity, etc.) of the grinding surface and the non-grinding surface, and the roundness is poor when grinding the circumferential intermittent outer surface.
6, grinding surface is easy to produce odd number of edge roundness, such as large will often cause the illusion that the measurement size is less than the maximum physical size, and affect the assembly quality and performance.
7, machine tool adjustment is more complex, time-consuming, each replacement of different diameter of the workpiece will need to adjust the bracket height, distance and related process parameters. Therefore, it is difficult to adjust the technology and is not suitable for small batch and single-piece production.
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