SU1625655A1 - Rest - Google Patents

Abstract

The invention relates to a machine tool industry, in particular, to devices for supporting non-rigid parts when machining machine tools. The aim of the invention is to increase reliability. When moving the rod 8 of the cylinder 9, the movement of the nut 10, rigidly connected with the central slider 4, made in the form of a bifurcated plug, the teeth of which are located in the slots of the housing 1 and connected by the roller 3, due to the fact that the screw of the screw - nut 10 has non-braking thread is converted into rotation 11. rigidly connected to bevel gear 12. Gear 12, connected by gear ratio V1 with two bevel gears 13, mounted on the ends of screws 14 of screw pairs, similar to a screw pair of a central creeper and transmits the rotation of the screws 14, which is converted into linear displacement of the slider 5 mounted at an angle to the central slider 4, movable simultaneously with the sliders 5. Thus there is simultaneous automatic coverage rollers 3 yl part 16 3. ate

Description

/ 4 15

98 10 11 2

P 5

, 0

| Yu

ate ate ate

fie. i

The invention relates to a machine tool industry, in particular, to devices for supporting non-rigid parts when machining machine tools.

The aim of the invention is to increase reliability.

Figure 1 shows the steady, general view

4section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

In case 1 of the lunet, bores 2 are made, in which sliders with rollers 3 are located, one of them is central slide 4, connected by means of a kinematic chain with two other sliders 5 arranged at an angle to the central slide 4, while the axis of bores 2 is located in one plane perpendicular to the machine axis. Central slider 4, ipolnenny B form bicusol fork, teeth

5 which are located in the slots 7 of the housing 1 and are interconnected by a roller 3, connected

with rod 8 of cylinder 9 and with kinematic chain with sliders 5 carrying rollers 3. The kinematic chain contains a screw pair with a non-self-braking thread, the nut 10 of which is rigidly connected to the central slide 4, and the screw 11 with a bevel gear 12, intended for engagement with bevel gears 13, mounted on the ends of a screw pair of 14 screw pairs, similar to a screw pair of a central slide 4, nuts 15 of which are rigidly connected to sliders 5,

while the gear ratio of bevel gears 1: 1.

The lunette works as follows.

When moving the rod 8 of the cylinder 9, the movement of the nut 10 is converted into rotation of the screw 11 with bevel gear 12, which transfers the rotation of the bevel gear 13 connected to the screws 14, the rotation of which causes the translational movement of the sliders 5 with the rollers 3, while simultaneously moving the central slider 4 with the roller 3, is automatically covered by the rollers of the part 16.

Claims (1)

Formula invented and The lunette, comprising a housing, in the bores of which three sliders are installed, one of them, central, connected through a kinematic chain with two others, pa; io.ij- connected to the central drive shaft, which differs from increase of reliability, the kinematic chain is made in the form of screw pairs with non-braking shch.ys thread and with screws, on which mountaineers there are bevel gears, assigned to interact with each other, while the central slider is made in the form of a bi-toothed tooth, 1 / which in n azah, made in the case, and interconnected roller. 6-6 7/1 figs