Types of Internal grinding machine with Diagram Explained
This machine is used to produce internal cylindrical surface. The surface may be straight, tapered, grooved or profiled.
Broadly there are three different types of internal grinding machine as follows:
1. Chucking type internal grinder
2. Planetary internal grinder
3. Centreless internal grinder
Read more :
- Types of Grinding Machines – LearnMech
Chucking type internal grinder
Figure 29.16 illustrates schematically this machine and various motions required for grinding action. The workpiece is usually mounted in a chuck. A magnetic face plate can also be used. A small grinding wheel performs the necessary grinding with its peripheral surface. Both transverse and plunge grinding can be carried out in this machine as shown in Fig. 29.17.
Planetary internal grinder
Planetary internal grinder is used where the workpiece is of irregular shape and can not be rotated conveniently as shown in Fig. 29.18. In this machine the workpiece does not rotate. Instead, the grinding wheel orbits the axis of the hole in the workpiece.
Centreless internal grinder
This machine is used for grinding cylindrical and tapered holes in cylindrical parts (e.g. cylindrical liners, various bushings etc). The workpiece is rotated between supporting roll, pressure roll and regulating wheel and is ground by the grinding wheel as illustrated in Fig. 29.19
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