SU557855A1 - Riveting device - Google Patents

Description

and mechanisms of their fastening on the riveted package. Each mechanism for fastening the hammer and the support is made in the form of grips 3, which are vacuum suction cups, and power cylinder 4 with a hollow piston 5 connected by means of hollow slots 6 connected to a hinge ring 7 mounted coaxially on the cylinder body 4. Ring 7 is installed with the possibility of vrash, yeni around the axis of the hammer 2.

Hammer 2 is spring-loaded by spring 8 and is located in hollow piston 5 with formation of damping cavity A filled with working medium and connected to additional damping cavity B, made in piston casing 5, having a handle 9. In cavity B there is a throttled washer 10 and piston And, which serves to separate the working media: l: liquid and gas. The handle 9 is throttled, its opening 12. The fitting 13 is designed to fill the working cavity of the power cylinder 4, and the fitting 14 connects the suction cups to the pump (not shown).

On the riveting hammer 2 installed seal 15.

The device works as follows.

Include the pump connected to the suction cups 3 through a flexible hose. Hollow rods 6 through the ring 7 press the support 1 and the riveting hammer 2 to the riveted package.

The length t 6 and the stop 15 is designed so that in this position there is a small gap between the stop 15 and the compressible bag. Fluid is supplied to the cavity of the power cylinder 4 through fitting 13. The piston 5 through the damper cavity And transmits the force to the stop 15, providing compression of the riveted package with a force that prevents the rivet material from flowing between the sheets of the riveted package in the riveting process. When the hammer 2 is turned on and the supports 1 of their body receive a certain amount of movement. Moving backward, the body of the hammer (support) displaces fluid from the main cavity of the hammer to the additional chamber through the throttling washer 10. Air from the additional damper cavity through the throttling hole 12 is removed to the atmosphere. The choice of the diameters of the throttling holes is determined by the desired braking characteristics of the support body. The maximum braking force is chosen less opening

effort suckers.

The pressing force of the pneumatic inflator depends on the effective area of the suction cups and the degree of vacuum in their cavities and does not depend on the thickness of the riveted bag.

The weight of the proposed device with suction cups made of lightweight materials may be small, for example, a riveting device with an impact energy of 100 joules. weighs 3.1 kg.

Claims (2)

Invention Formula A riveting device comprising a support and a riveting hammer with mechanisms for fastening them on a riveted package, characterized in that, in order to increase reliability of fastening and performance; each fastening mechanism is made in the form of grips and a hollow piston power cylinder with a damper cavity formed in it and connected by hollow rods connected to a hinge ring mounted coaxially on the cylinder body, the hammer is spring-loaded and located hollow piston with the formation of additional damping cavity between the hammer and the piston, connected to the damper cavity of the piston. 2. The device according to claim 1, characterized by the fact that the captures are made in the form of vacuum suckers. Sources of information taken into account in the examination: 1. The author's certificate number 223570, M. Cl.2 In 21J 15/24, 1968. 2. The author's certificate number 82469, M. Kl.2 In 21J 15/06, 1948.