Device for holding a part and application of the device
AssigneeInfineon Technologies AG
InventorsFranz Auracher, Julius Wittmann
Life of this patent
Estimating the term…
Abstract
A device for holding a part comprises a retainer member provided for applying and holding the part and having a convexly spherical surface section which is received in a concavely spherical surface section of a receptacle member. To enable movement of the spherical surface sections relative to one another, the device includes an arrangement for forming a temporary friction-free air bearing between the two surface sections, which can be removed once the surfaces of the two parts have been brought into the desired alignment and engagement to fix the receptacle and retainer members in position.
Claims15
A device for holding a part comprising a retainer member provided with an attaching and holding part, said retainer member having a convexly spherical surface section and a surface section for applying the part to be held, and a receptacle member provided for a rotatable bearing for the retainer member, said receptacle member having a concavely spherical surface section forming a glide seat surface for receiving the convexly spherical surface section of the retainer member, the improvements comprising glide means for reducing the friction between the spherical surface sections of the retainer member and the receptacle member, said glide means temporarily producing a gas glide layer between the spherical surface sections and said glide means temporarily producing an under-pressure between the spherical surface sections having at least one extraction opening fashioned in at least one of the two spherical surface sections for extracting the gas from the interspace between the two spherical surface sections.
A method of arranging parallel alignment of planar surface sections of a part relative to a planar surface section of a second part comprising the steps of providing a device having a retainer member and a receptacle member, the retainer member having a convexly spherical surface section and a surface section for supporting a part to be held, the receptacle member being provided with a rotatable bearing for the retainer member and comprising a concavely spherical surface section forming a glide seat surface for the convexly spherical surface section of the retainer member, glide means being arranged between the spherical surface sections for creating a glide layer to reduce the friction between the spherical surface sections;
- securing one part on the retainer member with the planar surface of this part facing away from the retainer member and the receptacle member;
- bringing the planar surface of the one part secured to the retainer member into contact with a planar surface section of a second part by moving the retainer member and the receptacle member and the other part relative to one another while the glide means reduces the friction between the retainer member and the receptacle member;
- and, after bringing the planar surfaces of the one part and the other part into contact with one another, reducing the glide layer to increase the friction between the retainer member and the receptacle member to hold these members in their position.
Dependencies are inferred from the claim text.