SU1689010A1 - Assembling device - Google Patents

Description

(21) 4686308/08 (22) 03.05.89 (07.11) 07.11.91. Bul №41

(71) Kaunas Polytechnic Institute A.Snechkus

(72) B.P. Bakshys, A.-B.B.Povilenis, I.S. Urbyte and M.Yu. Kukcinvičius (53) 621.757 (088.8)

(56) USSR Author's Certificate N 1310164, cl. B 23 R 19/04, 1985. (54) DEVICE FOR ASSEMBLY

(57) The invention relates to mechanical engineering and can be used to automate assembly work. The aim of the invention is to expand the technological capabilities by assembling parts with a complex base end profile.

The assembly device comprises a base with a recess into which a platform with a socket for one of the assembled parts is installed with a gap. In the bottom and in the cylindrical wall of the recess there are rows of evenly spaced nozzles that create an air cushion under the platform due to the air supply. A vibrator is installed in the center of the recess, and on the periphery of the bottom - spring-loaded pins, which close the air supply to the nozzles in the cylindrical wall of the recess. If the axes of the assembled parts do not match, the platform rests on a vibrator, bends, presses the pins, and the pressure drop in the wall nozzles shifts the platform, reducing the mismatch of the axes of the parts. 2 Il.

(L

WITH

The invention relates to mechanical engineering and can be used to automate assembly processes.

The aim of the invention is to expand technological capabilities by assembling parts with a complex base plate end of one of the assembled parts.

FIG. 1 shows the device, an axial section; in fig. 2 shows section A-A in FIG. one.

The assembly device comprises a platform 1 with a socket into which one of the assembled parts 2 is installed. The platform 1 is mounted on the base 3 in its recess. The other part 4 is located in the hand of the assembling robot. At the bottom of the recess, there are made circumferential nozzles 5 through which air enters the platform 1 from chamber 6. Along the periphery of the recess on its cylindrical surface

made nozzle 7, evenly spaced around the circumference. Also, around the periphery of the recess in its bottom, holes are made in which pins 8 are installed, spring-loaded springs 9. These pins 8, when pressed, overlap the channels Y. connecting nozzles 7 with chamber 11. In the center of the recess, a vibrator 12 with spherical element 13.

The device works as follows.

The part 2 is located in the assembly position in the slot of the platform 1, which is installed in the recess of the base 3. Another part 4 is supplied, for example, by means of an industrial robot to the end face of the part 2. When compressed air flowing from the nozzles 5 is fed, the platform 1 with its detail 2 hangs on the air cushion, and the jet of compressed air flowing through

About 00

yoo o

nozzles 7 center the platform in the recess of the base 3.

If the assembled parts at the assembly position are mounted coaxially, then when the robot arm is lowered, they are mated. If the parts are mounted non-aligned, i.e. there is a misalignment of the axes e, then the roller 4 when it is lowered abuts against the sleeve 2. In this case, the platform 1 with the sleeve under the action of the roller moves down to the stop in the spherical element 13 of the vibrating support. Under the action of the force arising between the mating parts, the platform rotates at a certain angle relative to the vibrating support, presses the pins 8, compresses the springs 9 and closes the channels 10. At the same time, the pressure in the nozzles 7 redistributes, and the platform shifts towards the misalignment of the axes assembled parts. When it is displaced, the part 2 mounted on it moves, and it is centered relative to part 4. The presence of an air cushion between the bottom of the recess and the platform and the vibrating spherical support allows reducing the normal force arising when the platform 2 is pressed to the spherical element 13, and the force friction between them.

Claims (1)

Claims of the Invention An assembly apparatus comprising an assembly head with a grip and a base / h of the U 1 K HCHU. 7P77 A base device with a recess, in a flat bottom of which nozzles are made, characterized in that, in order to expand technological capabilities by assembling parts with a complex base end profile, the base recess is made cylindrical with a vertical axis perpendicular to the bottom of the recess, in the recess a platform is installed with a flat surface facing the bottom of the recess, and with a seat for the assembled part on the opposite side of the platform, while the nozzles in the bottom are made perpendicular to the bottom of the coal The radially directed nozzles are evenly circumferential in the cylindrical surface of the recess at the level of the side surface of the platform, and a vibrator with a spherical support is installed in the center of the recess at its bottom, which has the ability to interact with the platform, and the periphery of the bottom of the recess along the circumference, concentric recess, are spring-up pins protruding to the height of the said spherical support; the bottom of the recess and the termination of the air supply to the nozzles located on the cylindrical surface of the recess, while the number of the latter coincides with the number of pins. 77 eight .