SU956260A1 - Nozzle for feeding cutting fluid - Google Patents

Description

one

The invention relates to the field of mechanical engineering, namely to metal cutting, which can be applied to supply lubricant cooling liquid (coolant) during abrasive diamond processing.

A nozzle for supplying coolant is known, which contains a cylindrical insert with an electromagnetic coil with pole pieces and an external magnetic conductor located on it and a magnetic conductor located concentrically inside the insert. Known nozzle provides trapping and retention of ferromagnetic particles during the processing of the workpiece 1.

The disadvantage of the known nozzle is that the ferromagnetic particles retained on the surface of the inner magnetic circuit experience the action of a coolant flow, which tends to tear them away from the magnetic surface. With the increase in the number of detainees Masgits and age.

Thickness of their layer on the surface of the internal magnetic circuit leads to the breakdown of individual particles or their aggregates, which leads to a decrease in the efficiency of the coolant mark. In addition, the known nozzle does not effectively remove non-ferromagnetic impurities (abrasive particles, grinding wheel binder).

10 The aim of the invention is to increase the efficiency of trapping and retention of mechanical impurities contained in the coolant supplied to the grinding zone.

f This goal is achieved by the fact that, in the proposed device, an internal magnetic core, located inside a cylindrical insert of a nonmagnetic material, provided

Claims (1)

The 2f solenoid coil-type solenoid coil with pole pieces is made up of an external magnetic conductor, which is hollow in the form of a steel pipe, a canal, the bottom of which has an orifice provided with a spring-loaded valve and faces the coolant outlet. FIG. 1 image 1 | eno proposed nozzle, longitudinal section; FIG. 2, section A-A, FIG. one; in fig. 3 section bb in fig. 1. The device consists of a housing 1, a cylindrical insert 2 made of a non-magnetic material, on which an electromagnetic solenoid coil 3 of a solenoid type is located with pole tips i and an external magnetic circuit 5. Inside the cylindrical insert 2 there is an internal magnetic core made in the form of a cup 6, used to trap and hold particles of mechanical impurities and sandwiched between the stop rings 7 and 8. The bottom of the glass 6 has an opening with a valve 9 on which the spring 10 is placed between the plates There is a valve and a strap 11 attached to the bottom of the glass with screws 12. In the stop rings 7 and 8 there are holes 13 for the passage of coolant. The nozzle works as follows. At the time the circle is supplied to the workpiece, an electromagnetic coil 3 is turned on. A magnetic field is induced between the pole tips t and the cup 6, and the direction of the electric current in the coil turns is such that the magnetic field tends to push the valve 9 out of the cup 6 in the direction of coolant. As a result, the valve 9 moves, behind its plate, a hole in the bottom of the glass 6 and compressing the spring 10. Ferromagnetic particles of mechanical impurities under the force of a magnetic field are concentrated along the axis of the nozzle, dragging non-ferromagnetic particles, and are drawn into the glass 6. In the glass under the influence of the magnetic field force, ferromagnetic particles are pressed to its bottom, closed by valve 9, blocking simultaneously non-ferromagnetic particles. The cleaned coolant flows unhindered from the glass 6 and then through the holes 13 in the stop rings 7 and 8 enters the treatment zone. At the time of withdrawal of the grinding wheel, hectare from the workpiece, the electromagnetic coil 3 is turned off. The valve 9 under the action of the spring 10 returns to its original position, opening a hole in the bottom of the glass 6. The delayed particles of impurities are washed away by the flow of coolant from the nozzle. Thus, the use of the proposed device provides an increase in the efficiency of trapping and retention of mechanical impurities contained in the coolant supplied to the grinding zone. This increases the degree of purification of coolant supplied to the treatment area. Invention Nozzle for supplying coolant with liquid, comprising a cylindrical insert with an electromagnetic coil with pole pieces and an external magnetic core located on it and an internal magnetic conductor located concentrically in the insert, because, in order to increase the efficiency of cleaning the coolant, the internal magnetic core is made in the form of a glass, turned downwards towards the coolant outlet, in the bottom of which a hole is made, in which a spring-loaded valve inserted into the nozzle is placed. , Sources of information taken into account in the examination 1. USSR author's certificate in application W 2768835 / 25-08, cl. B 2 B 55 / 02-, and..80 (prototype).