SU1731575A1 - Assembling device - 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 the reliability of the assembly due to the flow of air coinciding in direction with the assembly movement. The device contains a platform, freely supported on the vibrator, located at the base. A gripping device with axially moving sponges and a second vibrator is rigidly attached to the platform. The elastic cylinder is hermetically mounted on the outside. The length of the cylinder is such that the shaft, clamped in the sponge, does not protrude beyond the lower end of the cylinder, reinforced with a hard ring. The internal cavity of the cylinder is connected to the high pressure line of the pneumatic system. At the time of assembly, the elastic cylinder is in contact with the sleeve and when the vibrator is located at the base, and when air is supplied to the internal cavity of the elastic cylinder, the shaft is centered with the sleeve due to air flowing into the sleeve hole. The robot arm is lowered. 1 il. cl

Description

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

The purpose of the invention is to increase the reliability of the assembly due to the flow of air coinciding in direction with the assembly movement.

The drawing shows the proposed device, a longitudinal section.

The device contains a platform 1 with clamping levers 2, inside of which spring-loaded jaws 3 are installed, which can move parallel to the axis of the device, and a vibrator 4 mounted under platform 1 and rigidly connected to it. Platform 1 is located inside base 5

as a hollow cylinder with a hole in its bottom. At the bottom of the base, an additional vibrator 6 is mounted coaxially with said hole, on which platform 1 freely rests.

The elastic cylinder 7 is hermetically connected to the outer surface of the base 5. The length of the cylinder is such that the assembled shaft 8, clamped in the jaws 3, does not project beyond the lower end of the cylinder 7, reinforced with a rigid ring 9.

The internal cavity of the cylinder 7 is connected to the high pressure line of the pneumatic system.

In the walls of the base 5, a system of 10 holes is made with nozzles 11 evenly spaced around the circumference and

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directed to the side surface of the platform 1. This system of holes is also connected to the high-pressure line of the pneumatic system.

The device works as follows.

The roller 8 is gripped by the jaws 3 of the piece-by-part dispenser (not shown). Industrial robot transfers the roller 8 to the assembly position. Due to positioning errors, misalignment of the mating parts occurs. The arm of the robot is lowered until the stop of the cylinder 7 into the surface of the sleeve 12. Thus, the internal cavity of the cylinder 7 is sealed. But the assembled parts 8 and 12 are not in contact. A vibrator 6 is turned on, which with a platform 1 forms a high-frequency trail pair, which contributes to a sharp decrease in the frictional force that prevents the movement of platform 1 in a horizontal plane. Through the nozzle into the cylinder 7 is supplied compressed air released into the atmosphere through the hole in the part 12. The ring 9 seals the lower part of the cylinder 7 on the surface of the part 12. During the downward movement of the robot arm down due to the pressure drop in opposite sides of the mismatch The generated contours caused by the centering force moves the roller 8 together with the platform 1 in the direction of the matching contours. The centering process takes place before the mechanical contact of the roller 8 and the parts 12. The robot's hand continues to descend and the parts 8 and 12 are matched. When assembling parts for transitional landings or in case of incomplete alignment of the matching contours, a force arises that prevents assembly. In this case, the robot arm is shifted down to the stop.

Claims (1)

the roller 8 into the vibrator 4. This is facilitated by spring-loaded sponges 3. The vibrator 4 is turned on and excites axial oscillations of the roller 8, contributing to the guaranteed assembly of the legs. When the assembly of the sponge 3 is completed, the roller 8 is released, compressed air stops flowing into the cylinder 7, the vibrator 4 is turned off, the robot arm is retracted to its original position. In order to center the platform 1 relative to the rotor arm, compressed air is briefly supplied to the 10-hole system. After that, the vibrator 4 is turned off, and the assembly cycle is repeated. The invention of the Device for assembling parts such as a shaft hub, comprising a base, a associated platform with clamping levers, inside which spring-loaded jaws are installed, having the possibility of moving parallel to the axis of the device, and a vibrator rigidly connected to the platform and mounted under the platform coaxially with the axis device, characterized in that, in order to increase the reliability of the assembly due to the air flow, which coincides in direction with the assembly movement, the base is made in the form of a hollow cylinder from the center A hole is located in the bottom, and the platform is located inside the base with the possibility of free support on an additional ring vibrator mounted on the bottom of the base coaxially with the specified hole; moreover, an elastic cylinder is mounted on the base with its inner surface, the lower end of which is reinforced with a rigid ring, and the internal cavity elastic cylinder is connected to the high pressure line and pneumatic system. , ШШ42 // 4УА