SU757305A1 - Apparatus for volumetric vibration-type working of parts - Google Patents

Description

one

The proposed device relates to machines for volumetric vibration processing of parts, for example, for removing burrs and dross, rounding sharp edges, grinding, polishing, etc. operations with various filler or without it.

A device for volumetric vibration treatment of parts is known, which contains an oscillator suspended from a vibrator and an elastically suspended container with agitators positioned inside it along its entire length, mounted rotatably about its horizontal axis [1].

However, the turners do not contribute to the relative movement of parts and filler, and therefore the performance of machining parts is relatively low.

The aim of the invention is to improve the performance of the quality of the device for volumetric vibration treatment with cylindrical containers.

This is achieved by the fact that in the container, made in the form of a cylinder with internal ribs, a rotation is installed at the loading end

2

from an individual drive, a spindle on which the turners are fixed in the form of antifriction elastic rods (for example, cables covered with wear-resistant plastic) equipped with weights, the dimensions and pitch of which can be fixed along the rods

Gradually decrease towards the discharge end of the container. Elastic rods can be fixed unevenly around the circumference of the spindle, the back ring and the intermediate rings and are made in the form of a multi-way spring. When the spindle rotates, the combination of these parts forms a screw vibro-impact agitator loading, allowing you to create the movement of the loading layers in the peripheral zone of the container's working volume against the movement of the loading layers in the central zone of the container created by the vibrating container.

The proposed device is shown schematically in the drawing.

The device contains an elastic suspended cylindrical vibrating

container 1, hermetically sealed with

the ends of the front cover 2 and rear

a cone-shaped lid 3 serving

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for unloading. The container is equipped with a neck 4 for loading and internal spiral ribs 5.

In the center of the front cover 2 there is a bearing assembly b, on which the drive shaft 7 of the spindle 8 rests, which serves to secure the ends of the ^three anti-friction rods 5. Such rods can be a cable covered with wear-resistant rubber or plastic, or hardened wire. The drawing shows two ster- ¹ zhnya 9, made in the form mnogoeahodnoy spring.

Spindle 8 can be secured with a significant number of rods 9. To prevent tangling of the pins, they are also attached to several separating intermediate rings 10 (only one ring is shown in the drawing), the outer diameter of which is smaller than the internal diameter of the fins 5. Near the back a cone-shaped cover 3 has a rear separating ring 11, which can move axially in the rear section of the container freed from the back ·: 25 ribs between the rear cover and the annular cut of the ribs, and 'has l harness for loading direction back to the 'input end of the container. On the rods 9 are concentrated concentrated loads 12. The rods 9 are unevenly distributed and fixed on the rims of the spindle, rear and intermediate separation rings, which allows them to be used as an unbalanced low-frequency oscillation pathogen. ³

The arrow in the drawing shows the movement obtained by loading from the auger action and from the action of the unbalanced masses of the agitator, which receives rotational movement from the 40 action of the torque Μθ (ι).

From the bottom of the container, two or more unbalance vibrators are installed in the longitudinal axis of the container to transport the load in the middle zone of the container from the output end to the input end, as evidenced by arrows B.

The device works as follows. Fill the container with the load and turn on the movement drives A and B, and the modes are selected so that the load is not collected in one or the other end of the container. The accumulation of loading at one end can be seen by the subsidence of this end of the container on an elastic basis. ^behind

Due to the design of the agitator, the container receives a complex oscillatory motion, which is transmitted to the load. With the auger action, the agitator moves the load along the periphery of the container to the discharge end of the container, the unbalance vibrators return the load along the central zone of the container to the load end. Thus, it turns out to be circulating ¢ 5

loading stream. At the same time, the loads, striking the ribs, due to the separation of the masses and the distances between them, receive vibrations with local, partial eigenfrequencies. In the front part of the container, the goods will have low frequencies, which contribute to rough processing, and in the rear part - high frequencies, which contribute to finishing.

With an increase in the angular velocity of the agitator at the end of the processing cycle, the load tends to concentrate at the end of the container in the high-frequency processing zone.

With a sufficient conveyor length, it is easy to organize in-line loading movement with a predominance of movement A over movement B, with continuous loading through the throat 4 and continuous unloading and separation, if in place of the back cover 3 install any known sorting device that returns abrasives and working fluid to the container.

The proposed device has high performance and makes it easy to automate the process. The installation design is simple, collapsible, the most susceptible to wear rods are easily replaced.

Claims (2)

Claim 1. Device for volumetric vibration processing of parts, containing receiving vibrations from a vibrator, an elastically suspended container with agitators located inside it installed rotatably about its horizontal axis, characterized in that, in order to increase productivity and quality of processing in a cylindrical container, create the movement of the loading layers in the peripheral zone of the working volume of the container against the movement of the loading layers in its central zone created by the vibrating container nera, the latter is provided with receiving rotation from an individual drive and mounted on one of the end walls of the container with a spindle with a flange, and turners, made in the form of a multi-way spring, the turns of which are made of elastic anti-friction rods and fixed from one end to the spindle flange, and from the opposite end and along the entire length of the device, inserted into the last end and intermediate spacer rings. 2. Device pop. 1, characterized in that the turners are equipped with fixed along elastic rods of concentrated loads.