Core assembly fixture

Claim 2

An assembly fixture for aligning a plurality of magnetic cores in a selected pattern comprising: a laminated cavity plate having at least one base layer and a plurality of core receiving layers stacked on the base layer with all adjacent layers being bonded together, the base layer having a plurality of apertures therethrough, each being positioned opposite a desired center point of an aligned core and each being small with respect to the outside diameter of a core, and each of said core receiving layers having a plurality of rectangular apertures therein, said rectangular apertures being positioned to define the alignment of the magnetic cores, said rectangular apertures having a width slightly larger than the width of a core and said rectangular apertures having a length increasing successively from a length much smaller than the outside diameter of a core in the layer adjacent the base layer to a length slightly less than the outside diameter of a core in a layer farthest from the base layer; means for reducing the atmospheric pressure on the base side of the cavity plate with respect to the core receiving side of the cavity plate; and means for vibrating the cavity plate.

Claim 3

A magnetic core assembly fixTure comprising: a laminated cavity plate having a plurality of cavities therein for receiving magnetic cores and holding them in a desired alignment, each of said cavities substantially conforming to the shape of an inserted core and having an aperture at the bottom thereof for communication with a partial vacuum; means communicating with the apertures at the bottom of the cavities for providing a partial vacuum; and means for vibrating the cavity plate.

Claim 4

A magnetic core assembly fixTure comprising: a laminated cavity plate having a plurality of cavities therein for receiving magnetic cores and holding them in a desired alignment, each of said cavities substantially conforming to the shape of an inserted core and having an aperture at the bottom thereof for communication with a partial vacuum; means communicating with the apertures at the bottom of the cavities for providing a partial vacuum; and means for vibrating the cavity plate.

Claim 5

For use in a core assembly fixture having a vibrator coupled to vibrate a cavity plate and means for generating a pressure differential on opposite sides of a cavity plate, a laminated cavity plate comprising a plurality of coextensive plate elements, each having a plurality of apertures disposed concentrically about individual spaced apart core insert positions, the apertures varying in dimension through successive plates at each core insert position to provide a mating fit for a core inserted in one side and an orifice in the other side.

Claim 6

For use in a core assembly fixture having a vibrator coupled to vibrate a cavity plate and means for generating a pressure differential on opposite sides of a cavity plate, a laminated cavity plate comprising a plurality of coextensive plate elements, each having a plurality of apertures disposed concentrically about individual spaced apart core insert positions, the apertures varying in dimension through successive plates at each core insert position to provide a mating fit for a core inserted in one side and an orifice in the other side.

Claim 7

In a core assembly fixture having a partial vacuum source communicating with a bottom side of a cavity plate and a vibrator mechanically coupled to a cavity plate, a cavity plate comprising: a relatively thin flat member having a bottom side communicating with a partial vacuum and a top side having a plurality of core receiving cavities therein contoured to substantially conform to the shape of a magnetic core, each of said cavities having communication with the partial vacuum at the bottom of the member.

Claim 8

In a core assembly fixture having a partial vacuum source communicating with a bottom side of a cavity plate and a vibrator mechanically coupled to a cavity plate, a cavity plate comprising: a relatively thin flat member having a bottom side communicating with a partial vacuum and a top side having a plurality of core receiving cavities therein contoured to substantially conform to the shape of a magnetic core, each of said cavities having communication with the partial vacuum at the bottom of the member.

Claim 9

The invention as set forth in claim 4 above, wherein said cavity plate is constructed of several layers bonded together, each layer having a plurality of apertures therein corresponding to and defining the core receiving cavities, the apertures in each of the upper layers having a size and shape substantially conforming to the size and shape of a core within a cavity at the depth of the layer and the apertures in the lower layers providing communication between the cavities and the vacuum at the bottom of the cavity plate.

Claim 10

The invention as set forth in claim 5 above, wherein there are three upper layers, each having a thickness of approximately 0.004 inch.

Claim 11

The invention as set forth in claim 5 above, wherein said upper layers have a thickness less than one fifth the outside diameter of magnetic cores being assembled.

Claim 12

The invention as set forth in claim 7 above, wherein the apertures in the uppermost layer are rectangular in shape and have a length somewhat less than and a width somewhat greater than the outside diameter and width respectively of cores being assembled.

Claim 13

A laminated core assembly fixture comprising: a relatively thin flat laminated cavity plate having a top surface and a bottom surface and including: a first layer forming the top surface and having a plurality of rectangular apertures therein, said apertures having a width somewhat greater than the width of cores being assembled and a length somewhat less than the outside diameter of cores being assembled; a second layer bonded to the first layer and having a plurality of rectangular apertures therein corresponding to and aligned with the apertures in the first layer, said apertures having a width substantially corresponding to the width of the apertures in the first layer and a length somewhat less than the apertures in the first layer but corresponding to the outside dimension of the cores at the depth of the second layer when inserted into apertures in the first layer to maximum depth; a third layer bonded to the second layer and having a plurality of rectangular apertures therein corresponding to and aligned with the apertures in the first and second layers, said apertures having a width substantially corresponding to the width of the apertures in the first and second layers and a length somewhat less than the length of the apertures in the second layer but corresponding to the outside dimension of the cores at the depth of the third Layer when inserted into apertures in the first layer to maximum depth; at least one layer bonded to the third layer and forming the bottom surface of the cavity plate, said at least one layer having a plurality of apertures therein positioned to provide communication between the apertures in the first, second and third layers and the bottom surface of the cavity plate; means for vibrating the cavity plate; and means for providing a pressure differential between the top and bottom surfaces of the cavity plate.

Claim 14

A laminated core assembly fixture comprising: a relatively thin flat laminated cavity plate having a top surface and a bottom surface and including: a first layer forming the top surface and having a plurality of rectangular apertures therein, said apertures having a width somewhat greater than the width of cores being assembled and a length somewhat less than the outside diameter of cores being assembled; a second layer bonded to the first layer and having a plurality of rectangular apertures therein corresponding to and aligned with the apertures in the first layer, said apertures having a width substantially corresponding to the width of the apertures in the first layer and a length somewhat less than the apertures in the first layer but corresponding to the outside dimension of the cores at the depth of the second layer when inserted into apertures in the first layer to maximum depth; a third layer bonded to the second layer and having a plurality of rectangular apertures therein corresponding to and aligned with the apertures in the first and second layers, said apertures having a width substantially corresponding to the width of the apertures in the first and second layers and a length somewhat less than the length of the apertures in the second layer but corresponding to the outside dimension of the cores at the depth of the third Layer when inserted into apertures in the first layer to maximum depth; at least one layer bonded to the third layer and forming the bottom surface of the cavity plate, said at least one layer having a plurality of apertures therein positioned to provide communication between the apertures in the first, second and third layers and the bottom surface of the cavity plate; means for vibrating the cavity plate; and means for providing a pressure differential between the top and bottom surfaces of the cavity plate.