Computer controlled multiple axis grinding machine for grinding saw blades

A saw grinding apparatus comprising:

• a saw blade mount for mounting a saw blade thereto;
• a tool rack comprising multiple tool bays each for storing a grinding tool;
• and
• at least one computer numerically controlled (CNC) multiple axes grinding tool manipulator having a spindle connectable to a grinding tool, the manipulator being movable along at least three linear axes and rotatable about at least two rotational axes to position the grinding tool in at least three tool grinding positions against a tooth of the saw blade, wherein the positions enables the grinding tool to perform grinding operations including a top grind, a face grind, and a side grind of the tooth when the saw blade is fixedly mounted to the saw blade mount;
• wherein the manipulator comprises at least three linear modules movable along the at least three linear axes respectively and a two axes rotary joint sub-assembly movably mounted to one of the linear modules;
• and
• wherein the manipulator is movable to one of the tool grinding positions wherein a grind operation can be performed on a saw blade mounted to the saw blade mount, and movable to a tool change position wherein the spindle can engage a grinding tool stored in a tool bay and can deposit a grinding tool in an empty tool bay.