SU1495096A1 - Apparatus for abrasion-jet working of articles - Google Patents

Abstract

The invention relates to jet-abrasive machining of parts and relates to devices for cleaning, for example, gas distribution valves of engines from carbon in the manufacture and repair of soot. The purpose of the invention is to simplify the design of the device and automate the unloading of parts. The device 5 contains a working chamber 1 with ejector nozzles 6, a rotary faceplate / rotor / 2 with sockets for parts and a mechanism for rotating the parts, made in the form of an elastic friction tape 8. The latter is located inside the working chamber 1 and forms a loop, the ends of which are fixed on opposite walls cameras. One end of the tape is fixed on the wall of the chamber by means of a spring 9. With its loop, the tape 8 covers around the perimeter the plate 2, on the end surface of which there is an annular stop 15 for limiting the movement of parts. The workpieces 5 are installed in sockets made in the form of profiled vapors, which are located on the side surface of the faceplate with an axial inclination to its generatrix. From the outside, the parts 5 are pressed with an elastic band 8. When the rotor rotates relative to the fixed tape 8, the parts 5 rotate in the sockets and move along the sockets during their unloading / when reversing the rotor /. 1 hp f-ly, 5 ill.

Description

The second is fixed on opposite walls of the chamber. One end of the tape is fixed on the wall of the chamber by means of a spring 9. With its loop, the tape 8 covers the perimeter of the faceplate 2, on the end surface of which there is an annular abutment 15 for limiting the movement of parts. The parts to be machined 5 are installed in slots made in the form of profiled grooves, which are located on the side surface of the faceplate with an axial inclination to its generatrix. From the outside, the parts 5 are pressed with an elastic band 8. When the rotor rotates relative to the fixed tape 8, the parts 5 rotate in the sockets and move along the sockets during their unloading (when reversing the rotation of the rotor). 1 hp f-ly, 5 ill.

The invention relates to the field of jet-abrasive surface treatment of parts, in particular, to devices for cleaning, for example, gas distribution valves of an engine from heating during their manufacture and repair.

The aim of the invention is to simplify the design of the device and automate the unloading of parts.

Figure 1 shows the device, General view, section; figure 2 is the same, side view; on fig.Z - section LL in figure 1; figure 4 - section bb in figure 2; on fig.Z - sockets for installation details.

The device contains a working chamber 1 inside which a rotary faceplate (rotor) 2 is mounted, an ejector nozzle 3 for treating the surface 4 of the valve for the gas distribution valve 5 and ejector nozzles 6 for treating its curved surface 7. On the side wall inside the working chamber 1 with one end an elastic friction tape 8 is fixed, which by means of the loop formed by it covers the rotary rotor 2. The other end of the tape 8 is fixed on the other side wall of the chamber through the spring 9. Rotation of the rotor 2 is carried out along the means of the drive 10. On the cylindrical surface of the rotary rotor 2 at an angle / to its forming there are made prismatic grooves 11, which, together with the inner surface 12 of the tape B, form sockets for accommodating valves 5 in them. In order to form a loop that covers the rotary rotor 2, one branch of the tape 8 comprises a slot through which the other branch extends. For exclude

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One of the branches contains an anti-friction lining 13. At the end 14 of the rotary rotor 2, an emphasis 15 is mounted, made in the form of a ring and serves to limit the movement of the valves 5 in the axial direction during their processing.

The device works as follows.

The gas distribution valves 5 are installed in the sockets formed by prismatic grooves 11 and the surface 12 of the belt 8 facing the cylindrical surface of the rotary rotor up to the stop with their tailings in the ring 15, and when the next valve is installed, the spring 9 is stretched by some small amount, and after installation of all valves, it creates a tension on the belt, which provides a frictional effect on the valve shanks 5.

By means of the actuator 10, the rotor 2 is rotated and air is supplied to the pipe 16. In this case, the valves 5, as a result of the friction force applied to their shanks, rotate the belt 8 around its axis, and the abrasive particles 17 are sucked through the pipe 16 to the injector nozzles 3 and 6 and fed pressure on the machined surfaces 4 and 7 of the valves 5. Due to the large gear ratio of the shank of the valve 5. to the inner surface of the belt 8, covering the rotor 2, the valve has time to turn in the zone of active influence of the abrasive page ui up to several turns, thereby providing high-quality surface treatment. After one (or

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FIG.

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Claims (2)

Claim 1. Device for jet-abrasive machining of parts, comprising a working chamber with ejector nozzles, a rotary faceplate with slots for parts and a mechanism for rotating parts, characterized in that, in order to simplify the design of the device, the mechanism for rotating parts is made in the form of an elastic inside the working chamber jq of the friction tape forming a loop, the ends of which are fixed on opposite walls of the chamber, while the loop covers the faceplate along the perimeter with the face inserted into the device15 mounted on its end face ited annular ledge and slot parts are formed as grooves shaped and disposed on a side surface of the faceplate. 2. The device according to claim 1, characterized in that, in order to automate the unloading of parts, the profiled grooves are located with 25 axial inclination to the generatrix of the side surface of the faceplate. Fie 2 1. She ................. w / δ-b Figure 4