Manufacturing method for magnetic head suspension

Abstract

The present invention provides a method for manufacturing a magnetic head suspension that can improve the accuracy of the damper's fixed position. [Solution] In the method for manufacturing a magnetic head suspension according to the present invention, the damper is fixed to the load beam by using holes such as transport holes provided in an LB sheet, in which n load beams from the 1st to the nth (where n is an integer of 2 or more) are arranged in an alignment direction along the width direction of the load beams, and the n load beams are supported by a frame portion, as positioning holes.

Claims

1. A method for manufacturing a magnetic head suspension comprising a base plate provided with a connecting hole into which a main actuator is operatedly connected, and a load beam whose base end is fixed to the base plate, wherein the load beam includes a connecting portion connected to the base plate, a load bending portion extending from the connecting portion toward the tip, and a load transmission portion extending from the load bending portion toward the tip, and a damper is fixed to the load transmission portion, By etching a plate material of the same material and thickness as the aforementioned load beam, an LB sheet is formed in which n load beams, numbered from the first to the nth (where n is an integer of 2 or more), are arranged in an alignment direction along the width direction of the load beam, and the n load beams are supported by a frame portion. The frame portion includes a horizontal frame extending along the arrangement direction at a position spaced apart from the n load beams toward the longitudinal base end of each load beam, a first outer vertical connecting piece extending longitudinally from a first load beam located at one end of the arrangement direction and connected to the horizontal frame, a second outer vertical connecting piece extending longitudinally from an nth load beam located at the other end of the arrangement direction and connected to the horizontal frame, a first outer horizontal connecting piece connecting the first outer vertical connecting piece and the first load beam in the arrangement direction, a second outer horizontal connecting piece connecting the second outer vertical connecting piece and the nth load beam in the arrangement direction, an inner horizontal connecting piece connecting adjacent load beams in the arrangement direction, and an inner vertical connecting piece extending longitudinally between adjacent load beams and connecting the corresponding inner connecting piece and the horizontal frame. A method for manufacturing a magnetic head suspension, characterized in that the damper is fixed to each of the n load beams by using holes formed in the frame as positioning holes.

2. The aforementioned horizontal frame is provided with transport holes used when transporting the LB sheet. The method for manufacturing a magnetic head suspension according to claim 1, characterized in that the damper is fixed by using the transport hole as a positioning hole.

3. The horizontal frame is provided with n transport holes located on the longitudinal centerlines of each of the n load beams. The method for manufacturing a magnetic head suspension according to claim 2, characterized in that the damper is fixed to each of the n load beams by using the corresponding transport hole as a positioning hole.

4. The method for manufacturing a magnetic head suspension according to any one of claims 1 to 3, characterized in that the damper is fixed to each of the n load beams by arranging one auxiliary positioning pin so as to engage with a lateral connecting piece extending to one side in the alignment direction of the corresponding load beam and a longitudinal connecting piece on the same side in the alignment direction that connects the lateral connecting piece and the horizontal frame, and by arranging another auxiliary positioning pin so as to engage with a lateral connecting piece extending to the other side in the alignment direction of the corresponding load beam and a longitudinal connecting piece on the other side in the alignment direction that connects the lateral connecting piece and the horizontal frame.

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