SU677904A2 - Apparatus for abrasive-liquid working of parts - Google Patents

Description

one

The invention relates to the field of water jet machining of parts and can be used in the machine-building, instrument-making and in-field industries.

A device for abrasive-liquid processing of parts according to ed. N 597546 installed in a filled working mixture pumped through machined parts, a chamber made in the form of two cylinders concentrically mounted against each other, each containing a pot and an elastic element forming cavities for the working mixture and oil with the possibility of obtaining a single closed hydraulic systems {1,

A disadvantage of the known device is the manual filling of the working chamber with the working mixture and its discharge.

The purpose of the present invention is to reduce the auxiliary time.

This goal is achieved by the fact that the device is equipped with a system for automatically supplying the working mixture to the working chamber and discharging it, including tank

and control the filling of the working chamber and command equipment.

The drawing shows a diagram. devices.

A device for abrasive machining of parts includes a frame 1, on which the outer cylinder 2 and the concentrically installed inner cylinder 3 are rigidly fixed, each of which contains, respectively, piston groups consisting of pistons 4, 5, rods 6, 7 to elastic elements 8, 9.

The sealing of the working chamber 10, which is formed by the inner surface of the outer cylinder 2, by the Elastic elements 8, 9 and the lid T1, is carried out by the lid 11 by means of an air cylinder 12 equipped with a pressure switch 13 ...

In the working chamber there is a device 14 for mounting the parts to be machined. Limit switches 15 are located on frame 1, and measles 16 are placed on rod 7.

Claims (1)

The preparation of the working mixture, its filling and removal from the working chamber 10 is carried out by the system, consisting of the air distributor 17, the tank 18, and the filling chamber of the working chamber. check valves 19, 20, 21, barbing system 22, tank 23 for preparation of the working mixture, valves 24, 25, 26, pipelines 27, 28, 29, Г- 31. Tanks 18, 23 are equipped with a floating mechanism; , h 32, 33 and limit switches 34 and 35 cooTBei; -.- eJT: io. The operation of the predictable device is as follows. The pneumatic circuit and the air from the factory pneumatic circuit are switched on via the distributor 17, with the veitils x 24, 25 closed, the tank 18, the return yutapan 19 through the pipelines 27 and 28 into the bubbling system 22 n, which impedes the working mixture, {slug flow in the tank 2 From the tank 23 air After having passed the working mixture through the check valve 20 through the pipeline 29 and through the distributor 17, it is removed to the atmosphere. The working mixture was obtained with a uniformly distributed solid fraction by volume. On tool 14 ycTaHaBnijBaeTCfl, the part to be processed is turned on and on. Hydro spindle 12 lowers cover II, sealing the working chamber 10. At a pressure of a certain pressure, the pressure switch 13 gives a command to the electromagnet (not shown) of the distributor 17, which switches to opening of the valves 24, 25. Air from the factory pneumatic network through the distributor 17, through the check valve 21, through pipes 28 and 29 and the bubbling system 22 enters the tank 23 and displaces the working mixture, which passes through the valve 24 through the pipeline 30 and the channels made in the rods 6, 7, B, the working chamber 10, fills em it further goes gk pipeline 31 through valve 25 to tank 18. At the same time, the air in the working chamber is forced out by the working mixture through pipeline 31 through floor 25, tank 18 through pipe 27 through distributor 17 to the atmosphere. The working mixture, getting into the tank 18, raises the float mechanism 32, which, with its bark, turns on the limit switch 34. The working chamber 10 is filled with the working mixture. The command from the end switch 34 is supplied to the valves 24, 25, which are closed, the valve 17, which switches to the hydraulic system, ensuring that the required pressure in the chambers a, b, to the devices, and to the drive (in the drawing not shown), providing a compelling reciprocating movement of the piston 5 and the elastic element through the rod 7. Then the air from the distributor 17, through the tank 18, the check valve 19 flows through pipelines 27 and 28 into the bubbling system 22 and mixes the working mixture contained in tank 23. From the ba 23 and air proy working mixture through obratnty klapa 20 at ruboprovodu 29 through a distributor 17 was removed are in atmosfk pv. At the same time ;;} the drive providing the reciprocating reciprocating movement of the front-end group raises and lowers the rod rigidly connected to the piston 5 and the elastic element 9, ensuring the movement of the working mixture through the machined holes in the part. The processing time of the part is determined by the relay time; which gives a command to expire. at the entrance of the core 16 to the limit switch 15 for the deviation of the drive, ensuring the reciprocating movement of the associated piston group, relieving the pressure in cavities a and b, and 24, 25, which otkryshayus. The air from the distributor 17 through line 27 through tank 18, branch 25, through line 31 flows into the working chamber 10 n and forces the working mixture through the channels in the rods, through the pipe 30 and vent 24 into tank 23. Float valve. fur} shzm 33 rises as the tank 23 rises and turns on the limit switch 35; from the working chamber 10 made the removal of the working mixture. The hydraulic rod 12 lifts the cover 11. The part and the installation of a new one, Shchikl processing is repeated. The suitability of the working mixture for operation is monitored by a total time relay, which, after a certain period of time, shuts down the installation and turns on the signal lamp. Worker. the mixture through valve 26 is discharged, and in tank 23, room 1 is new. The reduced technical and economic effect from the use of this technical solution is increased {iits compared to the known by reducing the auxiliary time and improving working conditions. The invention The device for abrasive-liquid machining of parts according to ed. N 597546, that is, in order to reduce the auxiliary time, the device is equipped with an automatic supply system, the working mixture to the working chamber and its removal, including tanks for preparing the working mixture and controlling the filling working camera and command equipment. Sources of information taken into consideration in the examination 1. USSR author's certificate number 59754b, cl. B 24 C 3/16, 19, 1977.