SU272777A1 - - Google Patents

Description

one

A device for drilling deep holes with a slatted-sixth slider feed is known by means of a handle, which is installed in the tailstock quills of a lathe.

The described device for drilling deep holes is characterized by the fact that its handle is provided with a spring-loaded lock that interacts with the slots of the disk made integral with the gear and engages the rail with the gear, and the idler is provided with an additional handle rigidly connected to it.

Such an embodiment of the tool allows for quick withdrawal and insertion of a drill for cleaning the hole from chips.

Pa figs. 1 shows the proposed adaptation; in fig. 2 shows a section A-L in FIG. one.

The device for drilling deep holes comprises a housing Ij ending with a tapered shank in which a slide plate 2 is placed in the form of a lath.

The slider is in constant engagement with gear 3, loosely seated on axle 4, rigidly connected to the handle 5. In the cavity of the handle there is a spring-loaded lock 6, which interacts with the slots (slot) of the disk, made integral with the gears 3. With the lock finger tight. 7.

An overlay 9 with a slide 10 is attached to the case with two stop screws 8. In the longitudinal slot of the case there is a handle 11 rigidly connected with the slider. In the front part of the slider there is a cartridge 12 for installing the drill bit.

The device works as follows. The fixture is installed with a tapered shank in the PIOL of the tailstock of the lathe. The handle 5 rotates fully clockwise. At the same time, the finger slides along the plate, rises with the slide JO and brings the retainer out of the groove (slot) of the disc-wiper 3. Then the slider with the help of the handle 11 is moved forward until the drill, clamped, in the cartridge, touches the part. As soon as the finger comes off the slide, the lock enters one of the grooves (slots) of the Hie-disk 3, and as the handle 5 is further rotated counterclockwise, the gear changes with it, as a result of which the slider coupled with the gear moves. The drill is being fed.

To clean the chip hole, the drill bit is first retracted to the left by turning the knob 5 clockwise to the full. At the last moment, as soon as the finger is raised by the slide, the lock comes out of the groove (turning to the right. Then the slider is fed back to the left again. The drill is inserted into the hole until it stops, and by turning the handle 5 counterclockwise, the drill is fed again.

Subject invention

A device for drilling deep holes with a pinion gear feed of a slider by means of a handle, adjustable

in the tailstock quill of the lathe, characterized in that, in order to enable the quick removal of the drill bit for cleaning the chip hole and inserting it, the handle

equipped with a spring-loaded retainer that interacts with the slots of the disk, which is made integral with the bristles, and which engages the rail with the bristles, and the slider is provided with an additional, l: strictly connected with

him by the handle.

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