SU802036A1 - Method of machining surfaces - Google Patents

Description

one

The invention relates to the construction industry and building materials and can be used in the processing of high-quality cylindrical surfaces of natural stone and other similar materials, as well as in engineering.

The known method of turning monoliths of cylindrical shape, carried out on a machine tool, including a rotating cutting body, mounted on the spindle with the possibility of translational movement l).

For turning monoliths, the cutting body receives translational motion, and when it reaches the limit position, it turns around the monolith being machined.

However, it is not possible to ensure high-quality monolith surface in a known manner.

The closest technical solution to the invention is the method of surface treatment, mainly of cylindrical shape, which includes feeding the superfinishing head to the surface 2 to be machined.

The disadvantage of this method of processing is that one of

of the main parameters, determined by the quality of the treated surface, the height of the waviness (the height of the roughness of about 1-2 microns in increments of 1/15

up to 1/500 of the circumference of the workpiece being processed) the superfinishing process is practically not fixed. In addition, the performance of a known process is low.

The aim of the invention is to increase the productivity of processing and the quality of the treated surface.

The goal is achieved by the fact that in a known method,.

machining of surfaces, including the supply of a superfinishing head to the surface to be machined, the processing is carried out by bringing the superfinishing head into contact with the protrusion

the treated surface, and the inertial capacity of the harping head soup is determined from the condition:

„,, .. M |,

25

where inertia ability

superfinishing head; t is the mass of the superfinishing head;

L is the distance to the center of gravity of the superfinish head; d is the force to achieve the required pressure at the contact;

6 - superfinishing weight; V - superfinishing cKopcfcTb; - half wavy step j

I

machining the 4th child; H - the height of volost after

processing (

$, k, E linear pargshetra head design. An example of the method. Depending on the size of the wave of evenness, select the required Mass of the superfinishing head or determine the center of the tack by mixing the mass of the head, installed, using a model 3 A 227 falling on a cylindrical surface t removing irregularities. In this case, the inertial capacity of the superfinishing head is determined from the condition

„,, Э1Ш,

where nL is the inertia capacity of the superfinishing head;

m is the mass of superfinal head;

L is the distance to the center of gravity of the superfinishing head;

S, k, - linear parameters of the head design;

Q — force to achieve the required pressure at the contact;

G - superfinish weight; heads;

V is the superfinancing speed;

- half wavy step

The work piece;

h - the height of the waviness after

processing.

The processing results for the proposed method are shown in the table.

As can be seen from the example, the proposed method of processing cylindrical surfaces reduces the height of waviness. About 3-5 times, which provides an increase in processing performance of approximately 1.5-2 times, increasing the durability of the treated surface by 3-4 times by improving its quality .

0.05-0.07 0.4 0.2 0.1 0.09 0.17 0.07 0.17 0.13 0.11 0.07

invention formula

The method of surface treatment, predominantly cylindrical shape 7 7

ten

15

thirty

60

130

. 130

170

200

300

We, including the supply of a superfinishing head to the surface to be machined, characterized in that 65, with the aim of increasing the manufacturer’s 580203 quality and quality of the machined surface, the processing is carried out by introducing the superfinishing head into contact with the macro projections of the surface being processed, while the inertial ability of the superfinishing head. Dexters are determined from the condition oi (QS-GOe iTiL, where m is the mass of the superfinishing head-t ki; L is the distance to the center of gravity of the superfinishing head; S, k; is the linear parameters of the head; .15 64. G is the weight of the superfinishing heads; Q is the force for achieving the required pressure in the contact; V is the superfinishing speed; a is half the wavy step of the workpiece; h is the height of the waviness after processing, Sources of information taken into account during the examination 1. USSR Patent No. 13507, C, B 28 D 1/16, 1930. 2. Mazalsky VN, et al. Super Finishing Machines. Leningrad, Mashinostroi tion, 1974, p.56.

Claims (1)

Claim A method of processing surfaces, mainly a cylindrical form, comprising supplying a superfinishing head to the surface to be treated, characterized in that 65 what, in order to increase the manufacturer s 6. nnosti and quality of the processed surface. the processing process is carried out by introducing the super-finishing head · into contact with the macroprotrusions of the surface to be machined .. while the inertial ability of the super-finishing head is determined from the condition 4№h ’· where m is the mass of the super-finish head; L is the distance to the center of gravity of the super finish head; S, k, E- linear parameters of the head ;. G is the weight of the super finish head; Q is the force for the necessary pressure in the contact; V is the speed of superfinishing; a, is the half step of the undulation of the workpiece; .6 - height of undulation after processing.