internal grinder of classification

The internal grinder is mainly used to grind the surface and end face of the inner hole formed by cylindrical, conical or other shape lines, and to process the surface and end face of the inner hole formed by the cylindrical, conical or other shape lines of the workpiece. But do you know the classification of internal grinder?

The following is a detailed explanation.

Internal grinder is divided into ordinary internal grinder, planetary internal grinder, centerless internal grinder, coordinate grinder and special purpose internal grinder. According to the configuration of sand wheel shaft, internal grinder can be divided into horizontal and vertical.

① Ordinary

The chuck mounted on the spindle of the headstock holds the workpiece for circular feed motion, the worktable drives the grinding wheel rack to make longitudinal reciprocating motion along the bed guide rail (see machine tool guide rail), and the head rest makes transverse feed motion along the sliding saddle (see machine tool); the head frame can also rotate around the vertical axis to a certain angle to grind the taper hole.

② Planets

When the workpiece is fixed, the grinding wheel not only revolves around its own axis at high speed, but also revolves around the axis of the hole to be machined, so as to realize circular feeding. It is suitable for grinding large workpieces or workpieces that are not suitable for rotation, such as cylinder block of internal combustion engine.

③ No intention

When working, the outer circle of the workpiece is supported on the roller or support block, and the end face of the workpiece is sucked and rotated by the magnetic chuck, but it can float slightly to ensure the concentricity of the inner and outer circles. The speed of grinding wheel of small size internal grinder can reach more than 100000 rpm. The internal grinder used in mass production requires high degree of automation. In the grinding process, the size can be controlled automatically by plug gauge or micrometer.