SU1323244A1 - Tool holder - Google Patents

Abstract

The invention relates to the field of metal cutting, relates to tool holders and can be used to secure the cutters and cutting blocks on the lathe group. The purpose of the invention is to simplify the design by reducing kinematic connections. The toolholder contains a corup 1 mounted on the axis 5. On the axis 5, the tightening gauge is set to A .. ka 4, - and on the nut - a ratchet 6 with grooves. On the base 3 fixed separating disc 9 with grooves. Spring-loaded latches are installed in the case, interacting with the slots of the separating disc and the ratchet, respectively. The ratchet is spring-loaded to the cover with 2 fingers mounted in the case. The latches have opposite bevels, and the grooves on the ratchet and pitch disc are rectangular. When the nut is rotated counterclockwise through the latch 16, the housing also rotates with it. When the nut is rotated clockwise, the body rotates due to the forces of friction between it and the ratchet until the latch engages into the groove of the separating disc. Thereafter, the housing is stopped and further rotation of the nut is pressed against the base. 3 il. O) oo N3 Sla to 4 4

Description

The invention relates to the machining of metals by cutting, namely, tool holders, and can be used for securing the cutters and cutting blocks on lathes of the 5th group.

The aim of the invention is to simplify the design by reducing the kinematics of 1es links.

FIG. 1 is a schematic representation of the 0 tool holder; a plan; FIG. 2 shows section A-A in FIG. 1, in FIG. 3 shows a section BB in FIG. 3

The device comprises a housing 1 with a lid 2 fixed on the base 3 by means of a tightening nut 4, with which the ratchet 6 is installed on the axis with radial grooves 7. In the cylindrical bore 8 of the housing 1 there is a separating disk 9 with 0 radial grooves 10 interacting with the spring-loaded latch 11, Under the ratchet. 6, in the cylindrical holes 12 of the housing 1, the axes of which by the paralyzes 13 rotate in the same direction of the housing 1, there comes a moment when the latch 11 begins to interact with the radial groove 10 of the separating disk 9 and stops the housing 1. in the selected position. The braking torque of the ratchet 6 relative to the housing 1 provides a one-sided choice of gaps in the movable joint of the latch 11 with the housing 1, in its direction coinciding with the direction of action of cutting forces, which try to rotate it clockwise when the housing 1 is installed. This ensures high rigidity and positioning accuracy of the housing 1 relative to the base 3 of the machine. Formula invented and. The tool holder, comprising a housing mounted for rotation on an axis rigidly mounted on a base mounted on an axis c

the possibility of interaction with the roof between the lid and the end of the boring in. the housing with the possibility of limited rotation relative to the nut ratchet 30 with radial grooves, fixed on the base coaxially ratchet separating disc with radial grooves and installed in the housing opening ic with the ability to interact with the grooves

its axis 0–0, placed with a sub-strap fixed to the body, tightened zinovnye fingers 13. In this case, a snoring nut mounted on the nut vik 6 is connected with the nut 4 with the help of pins 14 and 15, and the interaction the ratchet 6 with the housing 1 is provided by means of a spring-loaded latch 16.

The device works as follows.

When the tightening nut 4 is rotated counterclockwise, the ratchet 6 with some 35 separating disk is spring-loaded with a lock lag caused by a snap, characterized in that. the presence of a certain angle between the pin, which, in order to simplify the design, Tami 15, under the influence of the pin 14, the tool holder is additionally equipped with, begins to rotate together with a locked spring-loaded latch, a fixed nut 4, with opportunity

interaction with the ratchet grooves, and spring-loaded fingers mounted in the holes made in the housing with the possibility of contact with the opposite end of the ratchet face with respect to the lid, while on the latches there are one-sided bevels directed relative to each other

The latch 16 rotates the casing 1. At the same time, the latch 11, due to the bevel, clicks on the radial grooves 10 of the divider disk 9, not preventing the rotation of the casing 1 to its new position.

When turning the tightening nut 4 in the opposite direction, the latch 11 stops. The housing 1 is in the correct position. Since under the action of the friction forces between the ratchet 6, the spline 2 and the paldrug in opposite directions, 50 slots are on the (x rape and split disc made rectangular in cross section of the profile).

Tsami 13 is rotated in the same direction of the housing 1, there comes a time when the latch 11 begins to interact with the radial groove 10 of the divider disk 9 and stops the housing 1. in the selected position. The braking torque of the ratchet 6 relative to the housing 1 provides a one-sided choice of gaps in the movable joint of the latch 11 with the housing 1, in its direction coinciding with the direction of action of cutting forces, which try to rotate it clockwise when the housing 1 is installed. This ensures high rigidity and positioning accuracy of the housing 1 relative to the base 3 of the machine. Formula invented and. The tool holder, comprising a housing mounted for rotation on an axis rigidly mounted on a base mounted on an axis c

the ability to interact with the cover mounted on the housing, tighten the nut mounted on the nut

between the lid and the end of the boring in. housing with the possibility of limited rotation relative to the nut, a ratchet with radial grooves, fixed on the base coaxially to the ratchet separating disk with radial grooves and installed in the housing opening ic with the ability to interact with the grooves

which is attached to the housing, the nut is fixed on the nut

a separating disk spring-loaded latch, characterized in that, in order to simplify the construction, the tool holder is provided with an additional spring-loaded latch installed in the housing

each other in opposite directions, and 50 grooves on the (x rapovik and pitch discs are made rectangular in cross section of the pro l.

figure 1

6-6

Editor N. Gorvat

0) ig.z

Compiled by A. Sapenok Tehred L. Oliynyk

Order 2905/13 Circulation 975

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader A.Ilyin

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Claims (1)

SUMMARY OF THE INVENTION A tool holder comprising a housing mounted for rotation on an axis rigidly mounted on a base, mounted on an axis to interact with a cover mounted on the housing, a tightening nut mounted on a nut between the cover and the end face of the bore c. the case with a limited rotation with respect to the nut, a ratchet with radial grooves, a dividing disk with radial grooves fixed to the coaxial to the ratchet base and installed in the hole of the housing, with a possibility of interaction with the grooves of the dividing disk, a spring-loaded latch, characterized in that, to simplify the design, the tool holder is equipped additional spring-loaded latch installed in the housing with the ability to interact with ratchet grooves, and spring-loaded fingers installed in holes in the housing with the possibility of contacting with the end face of the ratchet opposite to the cover, while the latches have one-sided bevels directed in opposite directions relative to each other, and the grooves on the ratchet and dividing disk are rectangular in cross section. figure 1