SU814694A1 - Method of hydraulic abrasive working of parts - Google Patents

Description

The invention relates to waterjet processing ’parts.

A known method of waterjet processing of parts, in which the hydroabrasive jet impart oscillatory motion relative to the workpiece surface [1].

The disadvantage of this method of processing is that it does not allow uniform processing of the surface of the part.

The purpose of the invention is the intensification of the processing process.

This goal is achieved by the fact that the hydroabrasive jet communicates 15 additional oscillatory motion perpendicular to the existing one and differs from it in frequency, amplitude and phase of vibrations.

In FIG. 1 shows a diagram of the implementation of the proposed method; in FIG. 2 is a view A in FIG. 1.

The workpieces 1 (Fig. 1) are placed in the fixture 2, which, together with the parts 1. is mounted 25 in the chain conveyor 3 using flat springs 4. Passing between the frames 5, suspended on springs 6, with ejectors 7 installed in them , details 1 are processed. thirty

The chain conveyor receives movement from the sprocket 8 from a mechanical drive (not shown in the drawing).

In this case, the electromagnets 9 mounted on the frame 10, through the anchors 11 mounted on the frame 5, inform the frames, together with the ejectors 7 installed in them, of the oscillatory movements. in two mutually perpendicular directions, which differ from each other in frequency, amplitude and phase.

An alternating electric current is supplied to the electromagnets, with a phase shift, and to one of them through the diode 12, so it will be pulsating, from which this electromagnet will transmit vibrations to the frames 5 two times less in frequency than the first.

Changing the magnetic flux in the electromagnets, for example, by changing the voltage of the electric current, you can change the amplitude of the oscillations of the frames 5.

Thus, depending on. Differences in frequencies, amplitudes and phases of vibrations, frame 5, together with the ejectors 7 and the flow of the hydroabrasive slurry, make complex vibrations. Movement.

In FIG. 2 shows the installation of ejectors 7 within 5 on rubber flanges 13 with the possibility of rocking (arrows G — D), which they receive from the rockers 14 (arrows B-c), from a mechanical drive.

The addition of two mutually perpendicular motions at a different ratio of frequencies, amplitudes and phases gives the resulting oscillatory motions with an infinite variety of continuously changing trajectories of hydroabrasive jets, which will allow

Claims (1)

This invention relates to a hydro-abrasive treatment of brakes. There is a known method of hydroabrasive machining of parts, in which a hydro-abrasive jet imparts oscillatory motion relative to the surface of the part to be machined l. A disadvantage of the known treatment method is that it does not allow uniform surface treatment of the part. The purpose of the invention is to intensify the process. This goal is achieved by the fact that the hydro-abrasive jet communicates an additional oscillatory motion, which is perpendicularly present and differs from it in frequency, amplitude and phase of oscillations. FIG. 1 shows the scheme for the implementation of the proposed method; in fig. 2 is a view A of FIG. 1. The parts to be machined 1 (Fig. 1) are placed in the device 2, which together with the parts 1. is installed in the chain conveyor 3 by means of plastic springs 4. The passage between pc1m 5, suspended springs b, installed in them ejectors 7, parts 1 are processed. The chain conveyor receives movements from the sprocket 8 from a mechanical drive (not shown in the drawing). At the same time, electromagnets 9 installed on frame 10, through measles 11 fixed on frames 5, communicate to frames with ejectors 7 installed in them, oscillatory movements in two mutually perpendicular directions that differ from each other in frequency, c1m1. and phase. An alternating electric current is supplied to the electromagnets with a phase shift, and to one of them through diode 12, so it will pulsate, from which this electromagnet will transmit oscillations to frames 5 by half the frequency than the first one. Changing the magnetic flux in the electromagnets, for example, by changing the voltage of the electric current, you can change the amplitude of oscillations of the frame 5. Thus, depending on the difference of frequencies, amplitudes and phases of oscillations, the frame 5, together with the ejectors 7 and the flow of hydroabrasive suspensions perform complex oscillatory movements. FIG. 2 shows the installation of ezokorov 7 within 5 on the rubber flanges 13 with the possibility of rocking (arrows G-D), which they receive from the rockers 14 (arrows B-c), from a mechanical drive. The addition of two mutually perpendicular movements with different ratios of frequencies, amplitudes and phases gives the resulting oscillatory movements with an infinite variety of continuously changing trajectories of waterjet jets, which will remove burrs in the holes of the boards, better and more evenly clean out the first part of the formula of the invention. wherein the hydro-abrasive jet imposes an oscillatory motion relative to the treated surface of the part, characterized in that, for the purpose of intensification and processing, report waterjet jet additional oscillating movement perpendicular imeyuschemus and characterized from it by frequency, amplitude and phase fluctuations. Sources of information taken into account in the examination 1. USSR author's certificate