JPS607938U - Tool attachment/detachment device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an example of a conventional tool attachment/detachment device;
Figures 2 to 20 show an embodiment of this invention, with Figure 2 being a half sectional view showing the tool attached, Figure 3 being a sectional view taken along the line ■-■ in Figure 2; Figure 4 shows rV- in Figure 2.
5 is a front view of the holder, FIG. 6 is a half sectional view thereof, FIG. 7 is a front view of the adjustment ring, FIG. 8 is a half sectional view thereof, and FIG. 9 is a front view of the sleeve. A front view, FIG. 10 is a partially cutaway side view, FIG. 11 is a view taken along arrow M in FIG. 10, FIG. 12 is a front view of the adjustment nut, FIG. 13 is a half-sectional view thereof, and FIG. 14 Figure 15 is a front view of the key member, Figure 15 is a half cross-sectional view thereof, Figure 16 is a view taken in the direction of arrow M in Figure 14, Figure 17 is a view taken in the direction of arrow X in Figure 15, and Figure 18 is a lock member. 19 is a longitudinal sectional side view thereof, and FIG. 20 is a view taken along the XX arrow in FIG. 19.

Claims (1)

[Scope of utility model registration request] It consists of a part to be attached to the spindle side and a part to be attached to the tool side.The spindle side part has a mounting hole in the center of the tip surface into which the shank of the tool is inserted, and the rear end part is attached to the spindle. A holder to be fixed, and a sleeve fitted to the outer periphery of the distal end of the holder so as to be movable in the axial direction but not rotatable, and biased toward the rear end of the holder by a spring member attached to the outer periphery of the holder. There is a shank of the tool on the tool side.
a ring-shaped key member that is fitted into the outer layer and has a protrusion on the inner periphery that engages with a keyway formed on the outer periphery of the shank portion; and a ring-shaped key member that is fitted on the outer periphery of the shank portion of the tool. A ring-shaped locking member is rotatably provided in a state where movement is prevented in the axial direction. an engagement groove extending in the circumferential direction on either one of the outer periphery of the distal end of the sleeve and the inner periphery of the rear end of the locking member, and an engagement groove extending from the engagement groove toward the other end. A notch I7 is formed on the other side, and a protrusion protruding in the radial direction is formed on the other side, and when this protrusion is inserted into the notch, the protrusion and the upper notch are formed in the circumferential direction. An inclined surface is formed on one of the side surfaces of one set of mutually opposing sides, and the inclined surface is gradually spaced apart from the opposite side surface as it goes in the axial direction, and the protrusion is engaged through the notch. When entering the engagement groove, the protrusion and the inclined surface work together to move the sleeve toward the distal end of the holder against the biasing force of the spring, and when the protrusion enters the engagement groove, A tool attaching/detaching device characterized in that the tool is configured to restrict the axial position of the tool by bringing the protrusion into contact with the side wall of the retaining groove by the biasing force of a spring.