SU806387A2 - Cutting fluid feed apparatus - Google Patents

Description

(54) DEVICE FOR FEEDING LUBRICATED-COOLED

LIQUIDS

The invention relates to mechanical engineering, in particular to the abrasive treatment of metals using coolant, according to the main author. St. M 554145 a device is known for supplying cooling liquids to a grinding wheel through nozzles located symmetrically around the circle at its periphery with a fire gap to the ends. These nozzles have internal muiocti, made in the form of a wedge, which narrows in the direction of the flow of CCSK along with the direction of rotation of the circle. airflows and additional lubricating and cooling effects during grinding. The fluid trapped in the pores of the circle, under the action of ventrifugal forces, is ejected onto its periphery and penetrates. in the zone of circular contact with the part, it performs the main action — effective reduction of the thermal stress of the grinding process. The known device provides a comparatively small (O, OZ dm / ma) flow rate of CCSa coming under excessive hydrodynamic pressure (5-12 N / scg ) into the pile channels of the grinding wheel and further, by the action of centrifugal forces, into the grinding zone. As a result, the 1FNSHL {1fangled in circles with a height of more than 30 mm-4O mm, the latter, is not soaked with liquid to its full height, which prevents the use of the device. The aim of the invention is to extend the technological capabilities of the device. This goal is achieved by the fact that ultrasonic oscillations (UT) are superimposed on soo a, as a result of which the process of coolant cooling through the pore space into the grinding zone is intensified. The imposition of a UST on the nozzle also allows you to increase the depth of impregnation of the circle with liquid along its height, as a result of which it is possible to apply the proposed apti grinding device with heavy modes of treatment with high-altitude circles.

FIG. 1 shows the proposed device; in fig. 2 - transverse i

nozzle section; on (r s - longitudinal section of the nozzle.

The device contains two nozzles 1, symmetrically located along the ends of circle 2, with pipelines 3 and nozzles 4. The nozzles are located in close proximity to the periphery of the grinding wheel with a gap from its face O, 1-O, 5 mm, are rigidly connected to waveguides 5 and have the ability to move continuously or periodically as the circle wears along its face M in the direction of the mounting bore.

This system works as follows.

Coolant from a centralized system, cooling or from a standard electro: pump (pump) enters through pipes 3 n of nozzle 4 into nozzles 1. Next, a part of the coolant due to ultrasonic testing,

the resulting mode of hydrodynamic lubrication and an increase in the coolant movement by

The exit from the nozzles 1 forcibly enters the pores of the rotating grinding wheel, and the other part expires through the gap between the ends of the circle 2 and the nozzles 1. The coolant leaving the nozzle 1 to the outside with increased speed enters the cutting zone, in passing, carried out the wetting and additional cleaning of the ends of the grinding wheel from grinding waste. The fluid trapped in the pores of the circle, by the action of centrifugal forces, is ejected onto its periphery and, penetrating into the zone of contact of the circle with part 6, effectively reduces the thermal stress of grinding.

Claims (1)

Invention Formula Device for psdachi lubricant fluids according to ed. St. No. 554145, characterized in that, in order to expand the technological capabilities of the device, it is provided with waveguides rigidly connected to the nozzles. Sources of information taken into account in the examination 1. USSR author's certificate N9, cl. B 24 B 55 / O2, 1975. Y ..; -. .s- ...;;, .. -. G :. f V :: vd   ". -JL I-. ..V t .V..f. .. fi-5 dr