NUMERICAL CONTROL MACHINE AND AUTOMATIC TOOL-CHANGING DEVICE THEREOF

摘要

Provided is a numerical control machine automatic tool-changing device, comprising a frame (22), a linear drive mechanism, a spline bushing (20), a spline shaft (19), a rotational drive device, and a tool change arm (29); the linear drive mechanism drives the spline bushing (20), and the spline bushing (20) drives the tool change arm (29) in linear motion along the direction of the axis of the spline shaft (19), rotating the drive device to drive the spline shaft (19); the spline shaft (19) drives the spline bushing (20) and the tool change arm (29) to rotate about the axis of the spline shaft (19). Also disclosed is a numerical control machine. The automatic tool-changing device has a simple structure and a low degree of design difficulty; it is easily machined, has a low failure rate, and effectively reduces costs.