SU1705050A1 - Method of cooling during grinding - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to metal cutting on multiscale machines using a rotating abrasive tool. Invention, invention - improving the efficiency of hydrotreating the working surface of the grinding wheel and reducing energy consumption. Nozzles 1 evenly t are located relative to the working surface of the circle 2 and in them channels 3 with tapering-expanding sections are made. In the channel 3, the nozzles 1, located at a distance o from the working surface of the grinding wheel 2, are fed with a certain speed and pressure (CO).;. With the passage of COW through the constricting-expansion channel, vapor and gas bubbles are formed, i.e. cavitation occurs. 2 cavitation hydres, created on the working surface of the grinding wheel, facilitate intensive cleaning of the latter from adhering metal and cutting waste. 1l to ensure high-quality cleaning of the circle, the length of the expanding section of the channel and the gap I; the nozzle and the circle are selected from a certain ratio. 2 Il. (L S.

Description

The invention relates to mechanical engineering, the processing of metals by cutting, can be used on round, flat, center-ciphering and other machines using enemy-abrasive abrasive tools.

The aim of the invention is to increase the efficiency of the hydrotreatment of the working surface of the circle and the reduction of energy consumption.

FIG. 1 shows a diagram of the device implementing the method; Fig. 2 shows a cooling circuit through a multichannel nozzle.

The nozzles 1 are evenly spaced relative to the working surface i of the surface of the circle 2 and in them i channels 3 are made with narrowingly expanding areas, the parameters of which are chosen following:

Hm (45-8P) °; o6 (L5-PE) °, d (0.6-3,.) Mm, where оЈ is the angle of taper of the expanding

plot; Od in the corner of the taper euzhupegos

plot; d - diameter of the minimum cross section

constricting-bursting

plot,

and the ratio of the length I of the expanding area to the diameter d of the minimum cross section of the auger-raspf south and the section is taken equal to l / d CA-h1), while the ratio of the distance from the nozzles to the working surface of the circle to the diameter d

SL O

ate

about

erute Ј / d (0, 75-1, 5); and the pressure applied to the coino coolant is (O, g, -10.0) Sha. The angles of inclination / $ (J3-5,) are chosen unequal to each other 5 range from positive values of negative.

The CO-M from the pump (not shown) is supplied to the nozzles 1. When coolant passes through the cylinder; -l: g: that-g asr.n) A cavitation zone appears in this section, i.e. the formation of vapor and gas bubbles) (cavities). In the sedimentary south-east section of the channel, where the flow rate decreases and the pressure increases, condensation of vapor bubbles and compression of gas bubbles occurs. At the moment of checking for condensation (collapsed bubbles) local shocks occur, i.e. significant pressure increase at selected points. The condensation of bubbles occurs on the surface of the circle 25, which provides a certain length of the wide section of the channel 1 and a distance o from the nozzles to the working surface of the circle. Created by

Claims (1)

Invention Formula The method of cooling during "grinding, in which the cooling lubricant 1. Liquid (JUF) serves the treatment zone stub through several evenly spaced relative to the working surface of the circle of nozzles whose angles of inclination are chosen to be suitable for each other in the range from positive to negative, in that In order to increase the hydrotreating efficiency of the working surface of the grinding wheel and reduce energy consumption, the nozzles are taken with channels made with constrictingly extending areas, the parameters of which are are the following: pibx (45-80) °; tf (25-30) °; a (0.6-3, d) mm, where p6 is the angle of taper of the expanding plot; 0Јб) the taper angle of the narrowing plot; .cl is the diameter of the minimum cross section of the narrowing-widening of the yugcegous region, slamming of bubbles of hydrospot SPO-JQ and the ratio of the length of 1 rubbed yugcegos destroy the greasy surface layers of circle 2, i.e. cleaning abrasive grains and pores of a circle from all metal and other grinding waste. Due to the presence of several nozzles 1 located at different angles / 3 to the corresponding radius of the circle, effective cleaning and wetting of the surface of the circle, the circle, is provided. the area to the diameter d of the minimum cross section of the narrowing-widened yugsegos section is taken equal to l / d (4-M, while the ratio of the distance 0 from the nozzles to the working surface of the circle to the diameter d is taken equal to Ј / d (0.75-1.5) and the pressure supplied to the nozzle SP) is (0.06-10.0) MPa. N