SU1609620A1 - Arrangement for polishing parts - Google Patents

Abstract

The invention relates to the surface treatment of parts with a predominantly plate shape and can be used at appropriate stages of the manufacturing process for the manufacture of metal products. The purpose of the invention is to increase productivity. The device comprises a cylindrical working container (PE) having a cavity for collecting the polishing mass. Inside the PE there is a coaxially arranged cassette (K), consisting of annular partitions 6 (KP), strips 7, removable rods 8, forming a frame structure. It is equipped with its own drive (P). PE has the ability to rotate in the direction opposite to the rotation of K, equipped with P and collector 12 for supplying coolant or wash liquid. On the outer row of gearbox mounted plates. 1 hp f-ly, 6 ill.

Description

5

, 1609620

The invention relates to the surface treatment of babies of a predominantly plate-shaped form (polishing, grinding, cleaning, etc.) and can be used at appropriate stages of the technological process of manufacturing metal products. The purpose of the invention is to increase the performance of surface treatment used parts, obrabot, about known devices (prototype), not

; details ki

FIG. 1 shows the proposed device, the general view ,, - longitudinal: Section; ia figure 2 - the same, cross-section | (loading period - unloading details -.: lei); figure 3 - the same (working position; fig, 4 - section aa in figure 3 - | in figure 5 - section bb in fig, 4 |: pas figure, 6 - section B-B in Fig. C

The device contains a working container 1 of a cylindrical shape, having a cavity 2. The working container 1 is mounted on supports and provided with an actuator 3 and has a cover 4. Inside the working CAPACITY 1 is a coaxially located cartridge 5 consisting of ring bridges 6 grooves, removable rods. 8. The strips 7 and the rods B in the cross section of the cassette are mounted in concentric circles with radii, respectively, R N. Kl. The partitions b, strips 7, the rods 8 form the frame structure of the cassette 5, into which the parts 9, are installed. The cassette 5 is rotated by the drive 10, To the drive p 6 of the partition 6 along the generatrix cassettes 5, between rows machinable - Parts 9 are installed plates 11 The collector 12 (fig. 3) consists of a socket 13, a pipe 14 and nozzles 15, installed talentsiala: .- relative to the body of a capacious - 7I 1, - ,,

that the cavity / is in the lowest position. Since the volume of the cavity exceeds the volume of the polishing mass, it is in this cavity and does not interfere with the rotation of the cassette 5 carried out for installation in the removal of parts 9. Reduction of these operations when using

15

20

25

thirty

35

..- - - irj.jiy PS

having cavities 2, it was necessary to remove the cassette from the working capacity, which significantly increases the laboriousness of the loading operation and increases the consumption of the polishing mass and complicates the design of the device (detachable joints are needed in the mount and drive rotation of the cassette). As follows, the rods 8, the part 9 is placed in the grooves of the bar 7 and fixed by mounting the rods 8. The presence of ring partitions 6 limits the movement of the parts 9 in the axial direction. The distance from the axis of rotation of the cassette 5 to the strips 7 (R.) and the rods 8 (R) is determined by the following relations R. R. - a -5;

R + a / 2 1 where a given part is in radial. cassette direction; o - the minimum gap between the workpiece and .15 - morning; 1 it is the surface of the working capacity.

These ratios are obtained from the condition of rational use of the working capacitance t, reliable shiksation of de / r alley 9 in the radial direction, the numerical value of c9 is determined experimentally depending on

Re- -.

The largest size is processed. The following arrangement works at once.

The technological process of processing parts in the case consists of the following operations; loading into the working capacity of the polishing mass, installing and fixing the workpieces 9 into the cassette 5 parts with a rotating cassette, removing the parts, unloading finished articles P, According to the processing technology, the polishing mass is also regenerated. Loading of parts 9 into cassette 5 is carried out with the release of clip 4. In this case, the capacitance t is arranged in this way,

f - ™ operations when using known devices (prototype), not

that the cavity / is in the lowest position. Since the volume of the cavity exceeds the volume of the polishing mass, it is in this cavity and does not interfere with the rotation of the cassette 5 carried out for installation in the removal of parts 9. Reduction of these operations when using

, n f - ™ operations when used, about known devices (prototype), not

15

0

five

0

five

..- - - irj.jiy PS

having cavities 2, necessitated the removal of the cassette from the working capacity, which significantly increases the laboriousness of the loading operation and increases the consumption of polishing mass and complicates the design of the device (detachable joints in the attachment and rotation drive of the cassette are necessary). In this way, the rods 8, the part 9 is placed in the grooves of the bar 7 and fixed by mounting the rods 8. The presence of annular partitions 6 limits the movement of the parts 9 in the axial direction. The distance from the axis of rotation of the cassette 5 to the strips 7 (R.) and the rods 8 (R) is determined by the following relations R. R. - a -5;

R + a / 2 1 where a given part is in radial. cassette direction; o - the minimum gap between the workpiece and .15 - morning; 1 it is the surface of the working capacity.

These ratios are obtained from the condition of rational use of the working capacity t, reliable si-de-r-alei 9 radial direction, the numerical value of c9 is determined experimentally depending on

Re- -.

the largest size of processing is - - - jriV-ril Hj (-i j о i

5 of the particle size distribution of the polr. -Shtis masses, the design of the part 9 and the necessity of ensuring the rotation of the cassette 5 without jamming. . After placing the parts in the cassette, the cover 4 is closed, the cartridge 5 is driven by the rotation by the drive 10, and the drive 3 rotates the working container 1 in the direction opposite to the direction of rotation of the cassette, so that

, iG; Gs ™ r -,

This order of bringing the equipment into operation allows

It does not significantly reduce the starting torque of the cassette drive 5, since the polishing mass in cavity 2 does not interfere with the start of rotation of the cassette.

The choice of the numerical value of the rotation angle is due to the need to ensure complete discharge of the entire mass from cavity 2, which is feasible provided the cavity is positioned so that the angle of inclination of the tangent at the point of the external cavity 2 and the working capacity to horizon n -, 3) was not less than the friction angle 1} of the polishing mass on the material of the cavity 2. Based on this condition and from the geometric relationships, a relationship was obtained for determining the angle pb

-,

Y is the angle between the tangent to the surface of the cavity and the radius

working capacity at their point

mates; P is the friction angle of the polishing mass on the cavity material; f - half of the central Angle,

opr;:; t, ate; ltsegs cavity size

in cross section, working

capacity.

one

In prinpipe, the angle of the mohsset varies in hyaiazone 90-180, It is impractical.; - exit output sa specified facets of polystotz mass usually including swing bodies of 25 diameters, sawdust, cous. skin, tiny solution, etc. When the cassette 5 is turned on, a part of the mother (pa of figs, 3 single lines) is steadily participating in the 2D action from the part being processed, moving around a closed tour .. - rises, is carried away by the cassette elements and rolls down by the action of gravitational forces (n 3 arrow circulating shown

.-; .v.-; v (.J till yjifllli1 jnn

This is caused by the following (35 circuit). Another part of the material

mi If the angle is less than 9CG, then a cavity is not formed, and if the angle / Y is more than 180, then a zone is formed in which a part of the polishing mass will be stuck, and this will negatively affect the operation of the devices. - 150 °.

The angle determining the size of the cavity should not be 90, EC-, 90 °, the cavity becomes larger than the working capacity. Based on design considerations, the range of change is 45-60 °,

Numerical values of the angle of the GB are taken equal to A 5 depending on the composition of the polishers. masses. Proceeding from the accepted ranges from the angles V and G and taking into account: that 1G / 2 90 °, we obtain at minimum values

(k: 120 -45 -90 + 5

40

45

50

55

adjacent to the inner surface of the working tank 1, less intensively participates in the processing of the surface of the part and forms a stagnant zone (a double cutout in FIG. 3).

The destruction of the indicated stasis zone in the proposed device and the plates 11 are installed, installed outside - circular annular helix 6 along a sample of the cassette between rows of processed products (f 3, 4 and 6). Plates 11 destroy the stagnant zone, thus involving additional volume of polish tosses in active treatment jnio

The reduction of the main technological surface treatment time is explained by an increase in the intensive interaction of the polishing mass with the choice of the optimal element modes.

cassettes (K, R, (), naj

LIST OF PLAY

-

609620

at the maximum values of Y and V 0 150 + 60-90-5 125. Experimental studies carried out in a laboratory setup with polishing materials 11D1Mi showed that with vb; a corner angle of Sb 800-125 °, the normal operation of the device and the reduction of production processing details

After unloading the polishing mass from the cavity 2, this mass is entrained by the rotating elements of the cassette 5 and the parts 9 processed and arranged in the cross section of the container 1 in the form of a circular segment (shaded in FIG. 3). Processing of the surface is achieved by interacting it with a polish, a lean mass, and 20 due to periodical immersion of parts into this mass due to the rotation of the cassette 5,

A polish is usually a mass that includes metal swing bodies of different diameters, sawdust, pieces. skin, tiny solution, etc. When the cassette 5 is rotated, a part of the material (pa figs, 3 single liner) constantly participates in the process of interaction with the workpiece, comparing the movement along a closed contour .. rises, is carried away by the elements of the cassette and rolls under the influence of gravitational forces (in FIG. 3, the arrow shows the circulation

; .v.-; v (.J till yjifllli1 jnn

35 circuit). Another part of the material

40

five

0

five

adjacent to the inner surface of the working tank 1, less intensively participates in the surface treatment of the part and forms a stagnant zone (double Pitrichka in FIG. 3).

In the proposed device, plates 11, mounted on the outer side of the annular partitions 6 along the shaped cassette between rows of processed products (Fig. 3, 4 and 6), are used in the proposed device. The plates 11 destroy the stagnant zone, thereby involving additional volume of polish-paste mass in the process of active detail processing

The reduction in the main technological surface treatment time is explained by an increase in the intensity of the interaction of the polishing mass with the treated surface due to the choice of optimal element modes.

cassettes (K, R, (), naj

1NIMS of slats

11 and the collector 12, the reduction in the time of washing the parts, the regeneration of the polishing mass is determined by the presence of cavity 2, which allows these operations to be carried out without removing the cartridge 5 from the tank 1 and unloading the polishing mass.

Claims (1)

1. Device for polishing de-. hoists containing a working container for a polishing mass with a spindle placed rotatably on a g-sassset for workpieces, characterized by the fact that 5 t aims at increasing productivity when processing parts of a disk-shaped form, the working capacity is complete 80-125, and the cassette is made in the form of a series of interconnected annular partitions, rods and slats with grooves designed to accommodate the workpieces, with In this case, the strips and rods in the cross section of the cassette are mounted in concentric circles, and the outer sections of the annular partitions are inserted into the device. plates, 2, The device according to p. 1, about the t that is due to the fact that the working tank is equipped with at least one collector, tangentially installed to the generator tank. / A / 77Y / A (turned) Figm In-in (yffeAUVfHO, in Merged) FIG. five