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There are several ways of grinding surface grinder? Mar 22, 2018

In the case of surface grinding, the workpiece can be mounted on a rectangular table for reciprocating rectilinear motion, or it can be mounted on a circular table for circular motion. When the grinding wheel peripheral grinding method is adopted, the grinding machine main shaft is arranged in a horizontal manner; when the grinding wheel end surface grinding method is adopted, the grinding machine main shaft is arranged in a vertical manner.

According to the combination of spindle layout and table shape, ordinary surface grinders can be divided into the following categories:

A horizontal axis moment table surface grinder

In this machine tool, the workpiece is attracted by a rectangular electromagnetic table. The grinding wheel makes a main rotation, the worktable makes a longitudinal reciprocating movement, and the grinding wheel frame makes intermittent vertical cutting movement and horizontal feeding movement.

Second, vertical axis round surface grinder

In this type of machine tool, the grinding wheel rotates as a main rotating circular worktable to perform a circular feed motion, and the grinding wheel frame makes intermittent vertical cut-in motion.

Third, the vertical axis surface grinder

In this type of machine tool, the grinding wheel makes a main rotation, the rectangular table makes a longitudinal reciprocating motion, and the grinding wheel frame makes an intermittent vertical cutting movement.

Four, horizontal axis round table surface grinder

In this type of machine tool, the grinding wheel rotates in a main motion, the circular table rotates as a circumferential feed motion, and the grinding wheel frame performs a continuous radial feed motion and an intermittent vertical cut-in motion. In addition, the rotary centerline of the table can be adjusted to an inclined position to grind the conical surface.

Double face grinding machine:

Grinding the end face of the grinding wheel using two grinding heads together grinds the two parallel planes of the workpiece, the horizontal axis and the vertical axis. The workpiece is guided by grinding wheels, such as linear or rotary insulating material feeders. This grinding machine has high power and is suitable for mass production of bearing rings and piston rings.

In the above surface grinding machines, the surface grinding machine using the grinding wheel end face grinding machine compared to the grinding machine using the rim, because the end grinding wheel diameter is often relatively large, can wear out the full width of the workpiece, grinding area Larger, so higher productivity. However, when the end face is ground, the surface of the grinding wheel and the workpiece is in contact with a curved line or surface, the contact area is large, cooling is difficult, and the chips are not easily eliminated. Therefore, the machining accuracy and the surface roughness are slightly inferior.

The productivity of the round table is slightly higher than that of the round table surface grinder compared to the table surface grinder. This is due to the fact that the circular table feeds continuously and the table top has a loss of commutation time. In addition, the circular table is only suitable for grinding the end face of small parts and large-diameter annular parts, and it is not possible to grind long parts, while the moment table can easily grind various common parts, including ring-shaped parts whose diameter is smaller than the width of the land.

 

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