RU1779484C - Machine for machining bodies of revolution with multiblade tool - Google Patents

Abstract

Usage: the field of machine tools, milling. SUMMARY OF THE INVENTION: the machine includes a bed 1 of triangular section. On the guides of the bed 1, a bilateral prism 6 is mounted with the possibility of longitudinal movement. On the edges of the prism 6 there are placed supports on which the tool heads are placed. A headstock 2 with a cartridge for the part is also mounted on the bed 1. Prism 6 and the headstock are made of a polymer-based composite material. 5 ill.

Description

Fi.1

The invention relates to machine tools and can be used, for example, as a milling machine.

As a prototype, a machine was selected for processing bodies of revolution with a multi-blade tool, including a bed with longitudinal guides, a headstock mounted on the bed, and opposite to each other with the possibility of lateral movement of the caliper bearing tool heads.

The machine has serious drawbacks that narrow the scope of its use: low damping abilities of the bed and housing elements, limited processing quality, low productivity, laboriousness of chip cleaning, low accuracy of the base of machine parts, etc.

The purpose of the invention is to increase productivity and machining accuracy by improving the assembly of the nodes and the damping properties of the machine.

This goal is achieved in that the machine for processing the bodies of revolution with a multi-blade tool, including a bed with longitudinal guides, a front headstock mounted on the bed, placed opposite each other with the possibility of lateral movement of the caliper, carrying tool heads, is equipped with a two-sided prism, the edges of one side of which mounted on the guide rails of the bed, and on the faces of the other side, calipers are installed, the bed is made of a triangular section, and the last one, a prism and a headstock Execute a composite material based on a polymer.

Figure 1 shows an isometric view of the machine; figure 2 is the same side view; Figs. 3, 4 show possible locking options for the cutting tool; in FIG. 5 - machine, front view.

A machine for treating bodies of revolution with a multi-blade tool including a frame 1, a front headstock 2 mounted on the frame 1, in which the main drive 3 with the chuck 4 for the part is located. On the bed 1, longitudinal guides 5 are made along which a two-sided prism b moves under the action of the longitudinal movement actuator 7. The faces of one side of the prism 6 are mounted on the guides 5 of the bed 1, and the faces of the other side are equipped with calipers with tool heads supporting the motor spindles 8, on the shafts of which there are tools 9, for example milling cutters. Prism b and headstock 2 are made of a polymer-based composite material. Spindle motors are rigidly fixed to calipers made in

in the form of a slide 10, mounted with the possibility of lateral movement under the action of the actuators 11. In order to avoid tipping over, the guide rails are made on the machine 12. Movement

0 from the drive 7 of the prism b can be carried out from the drive shafts 13 (shown conditionally). The workpiece is indicated by pos. 14. One of the tool heads is provided with a locking mechanism for the tool 9,

5 which can be performed, for example, mounted coaxially on the shaft 15 of the powder brake 16, mounted in the prism 6 of the power cylinder 17, on the rod 18 of which is mounted a gripper 19, which interacts

0 with tool 9, etc.

As drives 3 and 7, high-torque high-speed motors, for example, with thyristor speed control, can be used. Actuators 11 - service engines (stepper, direct current, etc.). Separate drive control, for example from a computer or CNC.

Guides 5 and 12 - metal

0 or polymer. If necessary, the machine can be equipped with a tailstock. The machine operates as follows. Part 14 is installed in the cartridge 4, locked and the rotation drive 3 is turned on. A signal is supplied to the actuators 11, which move the motor spindles 9 with the slide 10, setting the tool 9 to a predetermined machining size. The rotation of the motor spindles 8 (up to 45

0 thousand minutes 1) and drive 7 longitudinal movement. Tools 9 come into operation. Chips in the form of individual elements come off the slopes of the bed 1 and are removed by conveyors (not shown). If necessary

5, one or both of the tools 9 can be brought in or retracted from the part 14, their rotation is turned on or off. In addition, one of the tools can be stopped and fixed by the stopper 0 mechanism so that it will work only with one tooth, like a cutter (fine turning, step machining, grooving, etc.). In this case, the accelerated rotation of the drive 3 is included. The fixing of the tool 9 occurs by applying a voltage to the windings of the powder brake 16 or the working fluid in the power cylinder 17.

In the process, there is a compensation of the radial components of the cutting forces when working with two tools.

high specific chip removal (90 cm3 / min-kW per tool), plate resistance increases by 30%, machine productivity is increased 10 times. Prism 6 has a stable base on machine bed 1.

When processing the shaft (steel 45), a roughness of 0.62 ... 0.63 is achieved at a cutting speed of up to 6000 m / min.

Claims (1)

SUMMARY OF THE INVENTION Machine for treating bodies of revolution with a multi-blade tool, including a bed with longitudinal guides mounted on the front bed headstock, mounted opposite each other with the possibility of lateral movement of the caliper, bearing tool heads, characterized in that, in order to increase productivity and machining accuracy by improving the base nodes and damping properties of the machine, the latter is equipped with a two-sided prism, the edges of one side of which are mounted on guides of the bed, and on the faces of the other side, calipers are installed, while the bed is made of triangular section, and the prism and headstock are made of composite material la polymer based. 3 15 fig.Z / 7 FIG. It h