SU751524A1 - Apparatus for advancing and locking spindle sleeve - Google Patents

Description

Rolling 19 pinion gear 20, which one of its ends is attached to the inner teeth of the cup-shaped wheel 6, and the other crown to the nail L21 of the non-lower flange 4. The index disk 23 is seated at the end 22 of the eccentric shaft 1.

The clamping mechanism of the spindle sleeve 12 contains a hydraulic or pneumatic cylinder 24 (Fig. 3), on the rod of which a gear rack 25 is cut, with which the rod interacts with the gear 26 of the sleeve clamp drive. The gear 26 through the spikes 27, the splines 28 of the spring-loaded handle 29 interacts with the screw 30. The threaded end of the screw 30 is fitted with the woker 31 and the clamping ring 32, which with its conical surface 33 interacts through the ring 34 onto the spring ring 35, which produces the clip of the spindle sleeve 12 The stop 31 is rotated against rotation by pin 36.

The device works as follows.

Clamp gilzy. The eccentric shaft 1 is manually or mechanically rotated, which via the eccentric 18 communicates the movement of the pinion gear 20, alternately pressing it against the inner teeth of the flange 21 and the often-shaped wheel b, thereby rotating the drive shaft 8. Rotation of the drive shaft 8 moves the spindle sleeve 12 either up or down, depending on the direction of rotation of the eccentric shaft 1.

The pressure is applied to the clamping iolina of the hydro-pneumatic cylinder 24, and the rod is moved, the gear bar 25 of which rotates the bristle 26. The rotation is transmitted to the screw 30, with which the clamping ring 32 is compressed. The clamping ring 32 shrinks and shifts the ring 34 downwards, thereby compressing the spring ring 35. The spring ring 35 tightly covers and clamps the spindle sleeve 12.

Spin and reject liner. In order to retract the tool from the billet and in the reverse direction of the table, it is necessary to apply pressure to the pressing cavity of the hydraulic-pyram-cylinder. The pre-spring-loaded handle 29 should be tilted to the right, rotated and set to the position “Re-bushing. In this position, the handles 29, when pressure is applied to the squeeze cavity, will be performed not only by squeezing the liner, but also by withdrawing it from the workpiece.

The intermixing of the toothed rack 25 causes the gear 26 and the viit 30 to rotate in the opposite direction, which leads first to unclamping the clamping ring 32 and to releasing the chuck sleeve 12, and then moving the uior 31 to the left turns the lever 16 around the axis 17. The upper end of the lever 16 shifts the drive shaft 8 to the right. The helical gear 10 at axial displacement, interacting with the helical gear 11, shifts the pinch sleeve 12 upward, which takes the tool away from the workpiece.

When the handle is in position, pressing the sleeve when pressure is applied to the pressing cavity will only be used to expand the clamping ring 32 without turning the lever 16.

The gear ratio of the proposed liner movement mechanism is expressed

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The range of change in gear ratios of the described mechanism is wider than in the known ones, due to a change in the number of teeth in four gears instead of two.

Claims (1)

Invention Formula Device for moving and clamping spindle sleeve, including a frequently occurring gear wheel with internal teeth, a drive shaft, an eccentric shaft with drive gear engaged with a bowl wheel and teeth fixed in the device housing of the flange, and a mechanism for clamping the sleeve, characterized in that, in order to increase accuracy installation of the liner and reinforcement design, leading gear an integral part, one part of which is in engagement with the cup-shaped wheel, and the other part with flange teeth, and the drive shaft is mounted for movement in the axial direction and is kinematically connected with the sleeve clamping mechanism. Sources of information taken into account in case of examiners 1. U.S. Patent No. 2,933,986, Cl. 90-16, publ. 1960 : h S CVJ Co 0) 57