SU1328096A1 - Apparatus for combined working - Google Patents

Abstract

The invention relates to a combination treatment combining electrocontact machining with machining. The aim of the invention is to increase productivity and accuracy in the electrocontact processing of conductive materials by adaptive adjustment of the relative position of the tools by compensating for the wear of the electrode tool. In operation, a cutting tool mounted on a slotted spring-loaded brush, which is located in a mandrel made in the form of a double slotted sleeve, moves in the cavity of the tool electrode as the thickness of the layer removed by it increases, and presses on the inner shoulder of the double-arm levers. the rod is connected to the slotted sleeve on which the electrode tool is attached. As a result, the electrode tool is lowered. Thus, there is an adaptive regulation of the amount of departure of the grinding wheel throughout the entire process. Due to the fact that the inner arm of the lever is smaller than the outer arm, a slight movement of the grinding wheel causes a sufficient displacement of the tool electrode. 1 il. (L o th o 00 o co 05

Description

The invention relates to a combined treatment combining electrocontact processing with a mechanical one, and can be used in processing flat surfaces of parts made of conductive materials.

The aim of the invention is to increase productivity and accuracy in the electrocontact processing of conductive materials by providing the ability to make adjustments to the mutual arrangement of the cutting tool and the electrode tool.

This improves the working conditions of the cutting tool, which removes the uniformly heated, defective metal layer, which remains after the electrocontact process, as well as due to the use of unequal shoulder levers, since a slight axial displacement of the grinding wheel due to an increase in the axial component of the cutting force causes an adequate to compensate for wear and movement of the electrode tool.

The drawing shows the proposed device.

The device consists of a cutting tool, for example, a grinding wheel 1, which is fastened with a nut 2 on a splined spring 3. The rod 3 is located in the cavity of the mandrel 4, made in the form of a double-sided spline bushing, and with the help of levers 5 it is connected with a spline b, where the faceplate 7 and the locknut 8 are located along the external thread. The ring electrode-tool 10 is attached to the faceplate 7 with screws 9. The stem 3 is pressed by the spring 11 to the side of the work surface and is held in the mandrel 4 with a finger 12. Levers 5 akrepleny in the mandrel 4 on the axles 13. The washer 14 serves to limit the stroke compendium washers 7. The apparatus also comprises a workpiece 15.

The device works as follows.

The torque from the machine spindle through the mandrel 4 through the internal splines is transmitted to the rod 3, which is connected with the grinding wheel I by means of a nut 2. The torque is transmitted from the external splines of the mandrel 4 through the sleeve 6 and the faceplate 7 to the electrode tool 10. Under the action of the spring 11, the rod 3 occupies the lowest possible position. The spring force corresponds to the axial component of the cutting force that occurs when grinding with a cup wheel. The faceplate 7, together with the electrode tool 10, has the possibility of axial movement along

0

five

0

five

the external thread of the sleeve 6 and is fixed to the sleeve by means of a lock nut 8. Before starting the treatment, the electrode tool uses a faceplate and lock nuts so that the offset of the abrasive wheel from the tool electrode removes the melted metal layer remaining after the erosion process. After adjustment, the rotation of the machine pin, rotation of the working fluid and the source of electricity are included. The device is guided to the workpiece and includes a longitudinal feed. During operation, the electrode tool, which removes the main allowance h from the workpiece, wears out faster than the grinding wheel. As the electrode tool wears out, the thickness of the layer increases, removed by the grinding wheel, and with it the axial component of the cutting force. Under the action of this force, the rod 3 moves axially upwards and presses on the inner shoulder of the levers 5, which with their other shoulder act on the sleeve 6 and lower it in place with the electrode tool. Thus, there is an adaptive regulation of the amount of departure b of the grinding wheel throughout the entire process. Due to the fact that the inner arm of the lever 5 is smaller than the outer arm, a slight displacement of the grinding wheel causes a sufficient displacement of the tool electrode. If necessary, the device is retooled, for which the lock nut 8 is released and the face plate 7 is moved down along the thread together with the electrode tool 10, after which the processing is resumed. Changing the device allows maximum utilization of the working length of the tool electrode.

Claims (1)

Invention Formula 0 A device for the combined treatment of conductive materials, comprising a mandrel with a splined sleeve mounted on it, with a rigidly fixed annular electrode tool, and a cutting tool connected to the mandrel mounted in the cavity of the electrode tool coaxially with it and with the possibility of axial movement, characterized in that, in order to increase productivity and processing accuracy, the device is equipped 0 with a slotted brush and two shoulders, while the cutting tool is mounted on a spring-loaded splined rod mounted in the cavity of the mandrel, with which the splined hub is connected with two shoulders, the axes of which are fixed in the mandrel. 0 five Q 1b