SU109114A1 - Drill chuck - Google Patents

Description

Known cartridges d.1 kregk1enn drills with non-caching placed in the cams, according to the training axes for the radius: 1 movement from the axial movement of the screw on the inner conical surface of the housing, as a result of rotation on the balls in the sleeve (locked , PA thread in the nuts), connected through XBOCTCJBHK with the spindle of the machine.

The features of the natropa bore are paired to .It is not the inner conical surface of the holder, which carries the knuckle, to remove the shadow of the chips that get into the njionecce of the work inside of the body.

The drawing shows a general view of the cartridge with a partial axial section.

The chuck of the screwdriver bit is installed in the form of a body /, into which you get in. Sey.a 2. having three trunks, located at the angle of 120 each to the Friend. The clip 2 is provided with a tapered conical and upper strut. The transfer of the ni to the ch.chnndrich (skuyu, with its first shavings to remove the chips, the legs of the jajnu in the cartridge.

In the clips of the holder 2 1 ts three .1 pitch:. Body / with its internal xue ucHTpHiHeT cams o,

oooim 2 is located

under

this is 120 °. The cams of the C-screw enter their T-shaped end in the T-shaped groove of the screw 4. Left vnnt 4. screw in; go out and unwind in nut 5, informs the drivers of the 3rd ax. H. They are scored. 1, then along the inner cone KOjiiiyca /, then along the collars of the collar 2. thus ensuring their compression and expansion (ayka) rests on H1 rn 6. 6. reducing friction between ncii n. 7, with which the nut-t- is connected by a sliding seat FD1. Vtu.ka ka 7 is threadedly connected to the corns / n, with its butt end to the butt of the cage 2, abutting in turn) 1a1 with a collar in the inner wall of the housing /. In this way, a rigid connection of ethnical details is provided for, (the fixation of the system is 2 in the current version of the text and it is prevented by the closing of the string 3). D.1 is more accurate to fix the shadow on rez1, bs vtmkn 7 in root} ce / both parts.in are supplied

ILI INDR ICHICI AND AND A PRA, 71 on m surfaces.

On the protruding end of the nut 5 NyPressed ring 8, which serves for the convenience of working with the cartridge, as well as to increase the strength of the cross section bearing the load.

A shank 9 is pressed into the inner cone of the nut 5, which connects the cartridge with the machine spindle.

At the time of work (drilling) shank 9,. rotating to the right side, transmits its rotation to nut 5, which tends to turn out the left screw screwed into it 4, together with it a translational motion.

The left screw 4 presses the tongs of its T-shaped grooves on the cams 3, which, on the inside cone of the housing /, tend to come together, thus ensuring that the drill is firmly clamped in the chuck.

To make the drill bit in the chuck, hold the ring 8 with one hand, turn the body with another hand / counterclockwise, the left screw 4 will be screwed into the nut 5 and pull the cams 3 along with the help of T-shaped grooves. Sliding the butts of the cage 2 , razmozhmuts.

Due to the action of the ball 6, the unclamp will occur easily even with the strongest clamp.

The subject is invented and

Claims (4)

1. A chuck for fastening drills using cams placed in a cage, receiving translational motion under the influence of the inner conical surface of the housing when axially moving movably articulated with the screw cams, as a result of rotation of the nut on the balls in the sleeve attached to the thread in the housing , characterized in that, in order to remove chips that fall during cutting into the inside of the chuck, the cage carrying the cams is provided with an inner conical surface that does not fit into the cilin Drill hole, suitable for insertion and withdrawal of the fixed drill. 2. A cartridge according to claim 1, characterized in that, in order to accurately fasten the hubs in the housing to the threads, describe the supply with the interacting cylindrical guide surfaces. 3. Patron pi. 1 and 2, characterized in that the casing is provided with an outer collar designed to clamp between the inner collar of the housing and the end of the sleeve in order to fix the cage in a certain position and prevent jamming of the cams. 4. Patron on PP. 1-3, characterized in that the nut is provided with a safety ring.