SU1076197A1 - Apparatus for turning countoured surfaces - Google Patents

Description

A) The invention relates to the machining of shaped surfaces of parts, which is typically very small. The known device for processing shaped surfaces, containing a frame on which the spindle with the workpiece is mounted, a support with a tool holder. A tool holder is clamped in the tool holder, in which sliders with a cutting element and a copier are installed, arranged to move relative to the framing, parallel to the axis of rotation of the spindle. A fixed copier probe in contact with a cam is made on the slider, and a Cl 3 stop is mounted on the frame. A disadvantage of the known device is the impossibility of obtaining shaped surfaces of small parts with high accuracy, especially when machining small-sized holes. The purpose of the invention is to improve the accuracy of processing shaped surfaces of small-sized holes. This goal is achieved by the fact that the device for turning shaped surfaces, comprising a caliper with a tool holder, in which the holder with a cutting element slider is fixed and a copier connected to the cutting element by means of a probe, is provided with a mandrel mounted on the holder with the possibility of moving parallel to the axis, rotating the spindle, and in it perpendicular to the axis of the spindle there are grooves, one of which is designed to interact with the cam and the other with a slider, in which the groove is designed to interact follower probe, and on the powers ke as a groove, arranged to cooperate with the cam and the angle between the groove on the slide and the spindle axis of rotation equal to the angle between the groove and the grooves of the holder and the mandrel is less than FIG. 1 shows a device for turning shaped surfaces, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 section bb in fig. one; in fig. 4 - mandrel, front view; in fig. 5 the same, side view; fig 6 is the same; The device for turning shaped surfaces is fastened in a support with a tool holder (conventionally not shown) by means of a holder 1 on which a mandrel 2 is fitted, made with two grooves 3 and., Perpendicular to the axis of rotation 5 of the spindle 6 with a fixed part 7- Mandrel 2 has the ability to move parallel to the axis 5 of rotation of the spindle 6. In the groove is mounted a copier 8. In the groove 3, a slider 9 is installed with a cutting element 10. A lining 11 is attached to the mandrel 2. 9 you There is a slot 13 in which a copier probe T is installed, abutting against the copier 8 under the action of the spring 15. The angles between the groove 13 on the slide 9 and the axis 5 of rotation of the spindle 6 and between the slot 12 on the holder 1 and the slots 3 and 4 on the mandrel 2 are equal and less than the mandrel 2 is attached to the holder 16, through the opening 17 of which and the screw hole 18 of the copier 8 passes the screw 19, abutting against the mandrel 2. The drive is carried out either manually by means of the steering wheel 20, or from a stepping micro-electric motor. The device works as follows. The device by means of the holder 1 is fixed in the tool holder the support of the machine (not shown). At the same time, with the help of the machine caliper, the device is adjusted to remove a given stock, after which the device is brought to the workpiece 7 and its position is fixed. The spindle 6 is driven into rotation with the workpiece 7 fixed in it. Then, by turning the handwheel 20 (or a stepping microelectric motor) manually, the copier 8 is moved through the screw 19 in the direction opposite to the axis of rotation 5 of the spindle 6. At the same time, the copier 8 moves along an inclined groove 12 on the holder: 1, moves the mandrel 2 with the slider 9 fixed to it with the cutting element 10 parallel to the axis 5 of rotation of the spindle 6. Simultaneously with the indicated movements of the copier 8 and the mandrel 2, the copier 1 moves into the groove 13 of the slide 9 3 and moves the Latter together {conductive member 10 in the radial direction.

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Fig. 1 10761974 with cuts. The proposed device allows to increase the durability of processing small surfaces.

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Claims (1)

DEVICE FOR TURNING SHAPED SURFACES, containing a support with a tool holder, in which a holder with a slider of the cutting element is fixed and a copier connected to the cutting element by means of a stylus, characterized in that, in order to improve the accuracy of processing small holes, it is equipped with a mandrel mounted on the holder with the possibility of moving parallel to the axis of rotation of the spindle, and in it perpendicular to the axis of the spindle, grooves are made, one of which is designed to interact with a copier, and the other with a slider, in which a groove is made for interacting with a copy probe, and a groove is also made on the holder for interacting with a copier, and the angle between the groove on the slide and _the axis of rotation of the spindle is equal to the angle between the groove of the holder and the grooves of the mandrel and is less than 45 °. SU, „> 1076197>