Characteristics of the centerless cylindrical grinding form
There are many features to be noted in the form of centerless cylindrical grinding. When we use thin flat cutting disc , we should understand the form characteristics of the cylindrical grinding workpiece and provide some help for our own processing. Some forms of cylindrical grinding workpieces are summarized and introduced by manufacturers and companies for us to understand.
1. Since the workpiece is often indeterminate center, the workpiece is ground in the outer circle without the center hole and the ejector pin is used to support the workpiece. Therefore, the grinding allowance is relatively reduced.
2. The manufacturer believes that cylindrical grinding can not grind the axially grooved workpiece, because when grinding the holed workpiece, the axial position of the workpiece hole cannot be corrected, resulting in lower coaxiality of the workpiece.
3. Internal grinding of workpieces can only be processed on workpieces that are rolled on rollers without special circumstances, such as thin-walled parts such as grinding kits. Grinding parts are based on their own outer circle as the positioning reference. Therefore, the original coaxiality error between the inside and the outside cannot be corrected.
4. The centerless grinding maneuver time coincides with the loading and unloading time, which is easy to automate the grinding process and has high production efficiency.
5. In the centerless grinding process, the position change of the center of the workpiece depends on the original error before grinding, the rigidity of the process system, the grinding amount and other process parameters (center height of the workpiece, pallet angle, etc.);
6. The stability and uniformity of the motionless workpiece grinding depends on the machine drive chain, the shape of the workpiece, the weight, the material of the guide wheel and the support, the surface shape, the grinding star and other process parameters.
7. The adjustment time of the centerless grinding machine is long, and the technical requirements for adjusting the machine tool are also high. It is not suitable for single-piece small batch production.