SU1252140A1 - Apparatus for working parts in quasi-fluidized abrasive bed - Google Patents

Description

The izog, 1tepiye (vnuK-its to the surface coating) pbptke ditaleGG with abrasive abrazin p can be used in the machine-building industry and other industries,

The goal of i-JuRo-i is to provide high-quality machining of parts,

The ukatapna goal is achieved by moving the fluidized bed of abrasive and oyr apat into our parts.

FIG. 1 shows schematically devices for machining parts in a fluidized abrasive; Fig.2 is a section A-L IG ,, Fig, 1,

The device comprises an electric motor 1, an unsupported support 2, a drum 3, the shell of which is perforated and in which a fluidized bed is formed as a result of the passage of compressed air through openings

The drum 3 rotates in bearings on two supports (racks) 2 and 4: the left 2 - not supported: tyuy and the right ft - movable. The rotating drum 3 is surrounded by the air distribution chamber 5 of the compressed air supply to the inside of the drum in order to create a rotating fluidized abrasive layer inside it. The drum 3 is rotatably driven by an electric motor through a chain transmission. Motor 1 has the ability to vary the speed in a wide range.

Engine i is mounted on a fixed base. The left half axis 6 of the drum 3 is hollow, and through it the output of the worked out along with a certain amount of abrasive being carried out from the rotating drum 3 to the outside - into the cyclone system for separating the abrasive from the air for the subsequent return of the abrasive into the drum 3 with the help of screw feeder 7

The movable support 8 has the possibility of translational motion in the right axis of the drum 3 axis.

in the form of a hollow tr / would. After loading the axle shaft of the drt. ji iaHueM 1 1 drum 3 and connects ;: s. kim hard with crTeiUianbHbi; eyebolts, forming a monolith y; - p; .- and 11, akkuchnesla design, BHVTPH half-horn, 51 9 obstructed ganek 7 dl. , T1, yy, and portai. Brazy-foot. Or about the rotation of the bar 52140

Ban 3, The supply of abrasive is carried out continuously depending on the speed of ablation of particles with air through the semi-axis 6 with the help of the screw 7.

5 When pumping compressed air through the fluidized bed 12 along with the air, a very small part of the abrasive is constantly blown through the left hemisphere 6, therefore

 To compensate for the constant entrainment of the powder from the drum 3, the installation design provides for returning (compensating) the abrasive to the drum 3. The separation of the abrasive from the air is carried out in cyclones 13, and the return to the rotating drum 3 is carried out using a screw screw translator screw 7.

The installation also provides for cleaning the abrasive from metal dust using a magnetic separator (not shown).

The parts to be machined are fastened on the manipulator with tori 1A radios.

25 placed on the right half of the 9, entering inward rotating axis of the drum 3.

The radial arrangement of the manipulators 1.4 allows more rational

30 use the working volume of the fluidized bed. The right half axis 9 through the chain gear 15 is kinematically connected to the electric motor 16, which rotates the half axis 9 seconds behind the fastened parts 17 on the manipulator 14 in the direction opposite to the rotation of the fluidized bed 12. Abrasive powder is used during polishing. When processing (for cleaning the surface and removing burrs, larger abrasive grains are used. For hardening the drum 3, fine fraction is used (balls from ball bearings

45, 5 mm),

The device works as follows.

Before starting the operation of the right 50, the post 4 is detached from the drum 3 and set aside. The handles are attached to the machined parts. Then, the pillar 4 is attached to the drum 3 before connecting to the right 55 pin 10, which is tightly connected to the half-axle 9, the electric motors 1 and 16 are activated, the semi-axis 9 starts to rotate. Details locked

31

prisoners on the manipulators 14, also rotate in the opposite direction to the rotation of the drum 3 at low speed to create the necessary tension on the suspenders of the manipulators) A, Then compressed air is fed into the inside of the drum 3, where a fluidized rotating layer of abrasive powder is formed through which constantly passes t processing

521404

the parts are machined in a fluidized bed (deburring, polishing or shot hardening). The rotation of the manipulators 14 with the parts is carried out with the help of the electric motor 16. If necessary, the rotation of the manipulators with the children around the axis with a slower speed for better processing is provided.

Compiler L.Karelina Editor A.Vorovich Tehred A.Kravchuk Proofreader L.Obruchar

Order 4572/17 Circulation 740 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

.2

Claims (2)

I. DEVICE FOR PROCESSING DETAILS IN A PSEUDO-LIQUID ABRASIVE, containing a working container in which a device for accommodating the workpieces is installed, and an air distribution chamber, characterized in that, in order to intensify the processing process and ensure high-quality processing of parts, the container is made in the form installed with the possibility rotation of the drum with a perforated shell and horizontal axis of rotation, and the air distribution chamber in the form of a cylinder mounted coaxially with working capacity, while in the container is placed a device introduced into the device for supplying and discharging a working agent. 2. The device according to π. 1, characterized in that, in order to increase the processing productivity, the devices for supplying and withdrawing the working agent and placing the workpieces are made in the form of a hollow pipe, along the entire length of which there are pendants for fastening the workpieces, mounted for rotation and connected to the input into the device by the feed agent of the working agent. mr Fi g! * 12