SU1657328A1 - Device for placing shafts in holes - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to automate assembly processes. The purpose of the invention is to increase productivity. The device comprises a base and a platform connected to it by elastic elements, in which is located a gripping mechanism with a drive and gripping elements made in the form of sleeves having the ability to draw together simultaneously and sponges in them spring-loaded in the direction along the axis of the device. In addition, an electromagnet with a bark on an elastic plate is attached to the platform. During assembly, the shaft, clamped by spring-loaded jaws, interacts with the core, from which vibrations are transmitted to the shaft. 3 il.

Description

yo

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

The circuit of the invention is an increase in the productivity of the assembly process by reducing the vibration resistance of the shaft along its axis and increasing the amplitude of vibrations.

FIG. 1 shows a device for mounting a shaft; 2 is a section A-A in FIG. one; on fig.Z - section bb in figure 1.

The device for mounting the shaft 1 into the sleeve 2 contains elastic elements 3 and 4, a flat elastic element 5, an electromagnet 6, a base 7 which is attached to the arm of the robot, a swinging platform 8. which is connected to the base by elastic elements 4. On the platform 8 there is a power element drive mechanism 9 capture, for example, a pneumatic cylinder. In the case of the rocking platform 8 there is a gear rack.

the transmission 10, as well as the guides 11, the movable elements 12 of which are engaged with the rack and pinion gears. Clamping arms 13, made in the form of guide sleeves, in which sponges 14 are mounted on elastic elements 3, are mounted to movable elements 12. Rolling elements 1b, for example balls, are mounted in the body of sponges. A bracket 16 and an electromagnet 6 are attached to the lower part of the rocking platform 8, the measles 17 of which is located on a flat elastic element 5 rigidly connected to the bracket 16,

The device works as follows.

An automatic device for mounting the shaft into the hole, fixed on the robot arm, captures the part-shaft and brings the part to be assembled to the assembly position. Shaft Captured

ate VI

CJ

go

00

This is done as follows. Using a power drive 9, for example, pneumatic cylinders and rack and pinion gear 10, the moving elements 12 move in the guides 11 to the center of the swinging platform 8, and the clamping levers 13 are attached to the moving parts 12 by means of jaws 14.

After the part-shaft is brought to the assembly position, commands are received from the control unit (not shown) to lower the robot arm and connect the electromagnet 6. At the beginning of the assembly process, the electromagnet 6 functions as an inductive vertical movement. When the shaft is lowered and in contact with the edge of the aperture of the sponge 11 (pa, uma moves up to the stop into the elastic element 5. The shaft deforms the elastic element 5, which causes a decrease in the air gap between the core 17 and the coil of the electromagnet 6. The change in voltage at the terminals of the electromagnet coil, which for the control unit, is a signal to issue a command to stop the lowering of the robot arm.

The clamping levers 13 in the form of guiding sleeves in which the jaws 14 and the elastic elements 3 are placed create a certain force of normal pressure between one end of the shaft and the mating part and between the flat elastic element B and the other end of the shaft. The fastening of the rocking platform 8 to the base 1 through the elastic elements 4 contributes, by the presence of a force of normal pressure between the assembled parts, to the rotation of the shaft by a certain

angle relative to the longitudinal axis of the device

Electromagnet 6 through a flat elastic element 5 creates oscillations of the shaft in the direction / genius of its axis. The presence of axial oscillations of the shaft and the horizontal component of the normal pressure force between the assembled parts contributes to the displacement of the shaft towards the alignment of the mating surfaces and the installation of elastic elements 3 when combining the axis of the shaft and the axis of the hole.

Claims (1)

After mating the assembled parts by means of an air cylinder 9 and a gear-transmission gear 10, the movable elements 12 are retracted from the center of the rocking platform 8, and the clamping levers 13 attached to the movable elements 12 release the shaft. The rotate hand rotates into the initial position and the assembly cycle The invention is repeated. A device for mounting a shaft into a hole comprising a base, a swinging platform, attached to a base with 5 with the help of elastic elements on which the gripping mechanism of one of the assembled parts with gripping elements is located ii the drive of the gripping mechanism, which is different in order to increase 0 performance, gripping elements made in the form of parallel sleeves. symmetric about the axis of the device and having the possibility of synchronous ploskoprasellny movement in the direction of the axis of the device, and in these sleeves are spring-loaded jaws that can move along the axes of the sleeves. And 8 FI.3