JPS6383238U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a front view of a machine tool according to an embodiment of the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a state in which the cutter mounting unit is pushed out.
4 is a cross-sectional view of FIG. 3, FIG. 5 is a sectional view of FIG. 3, FIG. 6 is a plan view of the moving bar and protrusion, and FIG. 7 is a differential view. FIG. 8 is a cross-sectional view of the case, and FIG. 9 is a cross-sectional view showing the processing state of a conventional differential case. In the drawing, 11 is a workpiece (differential case), 14, 15 are arbor, 28, 29, 30
31 is a cutter mounting unit, 31 is a cutter carrying device,
32 is a mounting unit moving device, 58, 62, 63
is a katsuta.

Claims (1)

[Scope of utility model registration request] In a machine tool that brings a cutter into a workpiece, inserts an arbor into the workpiece from both sides of the workpiece, connects the arbor and the cutter within the workpiece, and then processes the inner surface of the workpiece with the cutter, respectively. A plurality of cutter attachment units rotatably hold the cutters, and the cutter attachment units are disposed corresponding to the workpiece attachment positions and are removably engaged with the cutter attachment units to push the cutter attachment units toward the workpiece. a cutter bringing-in device that inserts the cutter held by the cutter attachment unit into the workpiece;
A machine tool with an automatic tool changer, comprising: a mounting unit moving device for positioning any one of the cutter mounting units with respect to the cutter carrying device.