Method for mounting a magnetic head on a suspension arm
First Claim
Patent Images
1. A method of mounting a magnetic read/write head onto a suspension assembly arm having mounting identification indicia comprising a dimple, said arm having adhesive applied thereto adjacent said dimple, said method comprising the steps of:
- operating apparatus including a computer to determine the location of the center of said dimple on said arm,operating apparatus including a computer to determine the location of the center of said head,rotating said arm in a horizontal plane so that a longitudinal axis of said head is parallel to a longitudinal axis of said arm,positioning said arm so that said center of said head is immediately over said center of said dimple while said axis of said head is kept parallel to said axis of said arm,lowering said head onto said arm while said center of said head remains over said center of said dimple, andpermanently affixing said head to said arm by means of said adhesive.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for positioning a magnetic read/write head with precision orientation on a suspension assembly arm. The arm contains a plurality of mounting indicia. Computer controlled apparatus, including an optics system, scans the mounting indicia and the head and mounts the head on a predetermined desired location on the arm and with the desired orientation.
-
Citations
11 Claims
-
1. A method of mounting a magnetic read/write head onto a suspension assembly arm having mounting identification indicia comprising a dimple, said arm having adhesive applied thereto adjacent said dimple, said method comprising the steps of:
-
operating apparatus including a computer to determine the location of the center of said dimple on said arm, operating apparatus including a computer to determine the location of the center of said head, rotating said arm in a horizontal plane so that a longitudinal axis of said head is parallel to a longitudinal axis of said arm, positioning said arm so that said center of said head is immediately over said center of said dimple while said axis of said head is kept parallel to said axis of said arm, lowering said head onto said arm while said center of said head remains over said center of said dimple, and permanently affixing said head to said arm by means of said adhesive. - View Dependent Claims (2, 3, 4, 11)
-
-
5. A method of mounting a rectangular magnetic recording heat onto a suspension assembly arm having mounting identification indicia comprising an inner hole and an outer hole and a dimple intermediate said holes, said arm having adhesive applied thereto adjacent said dimple, said method comprising the steps of:
-
operating apparatus including a computer to determine the location of the center of said first hole on said arm, operating apparatus including a computer to determine the location of the center of said second hole on said arm, operating apparatus including a computer to determine the location of the center of said dimple on said arm, operating apparatus including a computer to define a longitudinal axis of said arm to be an imaginary line interconnecting the centers of aid holes, operating apparatus including a computer to determine an offset representing the distance between said center of said dimple and a predetermined location on said line, operating apparatus including a computer to determine location of the center of said head, rotating said arm in a horizontal plane so that a side of said head is parallel to said line of said arm, positioning said arm so that said center of said head is immediately over said center of said dimple while keeping said side of said head parallel to said line of said arm, lowering said head onto said arm while said center of said head remains over said center of said dimple, and permanently affixing said head to said arm by means of said adhesive. - View Dependent Claims (6)
-
-
7. A method of mounting a rectangular recording head onto a suspension assembly arm having mounting identification indicia comprising an inner hole and an outer hole and a dimple intermediate said holes, said arm having adhesive applied thereto adjacent said dimple, said method comprising the steps of:
-
placing said arm and said head in separate locations of a holding tool, operating apparatus including a computer to determine the location of the center of said first hole on said arm, operating apparatus including a computer to determine the location of the center of said second hole on said arm, operating apparatus including a computer to determine the location of the center of said dimple on said arm, operating apparatus including a computer to define an imaginary line on said arm interconnecting the centers of said holes, operating apparatus including a computer to determine an offset representing the distance between said center of said dimple and a predetermined location on said line, operating apparatus including a computer to determine the location of the center of said head, rotating said arm in a horizontal plane so that a side of said head is parallel to said line on said arm, using said offset determination to position said arm so that said center of said head is immediately over said center of said dimple while keeping said side of said head parallel to said line on said arm, applying a vacuum to a holder, moving said holder atop said head so that said head is lifted upwards by said vacuum and held against a bottom portion of said holder, moving said head and said holder upwards away from said tool, moving said head and said holder horizontally away from said tool, moving said tool under control of information derived by said offset determination to prepare said arm to receive said head, determining the current location of the center of said dimple, moving said tool a required amount to position said dimple in a precise location required for said center of said dimple to receive said center of said head, moving said holder and said head to position said center of said head over said center of said dimple, lowering said holder so that said head is placed onto said arm while said center of said head remains immediately over said center of said dimple, permanently affixing said head to said dimple by means of said adhesive, and removing said vacuum to release said head from said holder. - View Dependent Claims (8)
-
-
9. A method for mounting a rectangular recording head onto a suspension arm by operating a computer controlled optics system to control said mounting said arm having mounting identification indicia thereon with said indicia comprising an inner circular hole and a circular outer hole and a circular dimple intermediate said holes, said arm having adhesive applied thereto adjacent said dimple, said method comprising the steps of:
-
placing said arm and said head in separate locations of a holding tool, operating said computer controlled optics system to determine the location of the center of said first hole on said arm by scanning perimeter segments of the circumference of said first hole, operating said computer controlled optics system to determine the location of the center of said second hole on said arm by scanning perimeter segments of the circumference of said second hole, operating said computer controlled optics system to determine the location of the center of said dimple on said arm by scanning perimeter segments of the circumference of said dimple, operating said computer controlled optics system to define an imaginary line on said arm interconnecting said centers of said holes, operating said computer controlled optics system to determine an offset representing the distance between said center of said dimple and a predetermined location on said line, operating said computer controlled optics system to determine the location of the center of said head by scanning the corners of said rectangular head, operating said computer controlled optics system to rotate a table on which said arm rests in a horizontal plane so that a side of said head is parallel to said line on said arm, operating said computer controlled optics system to position said arm so that said center of said head is immediately over said center of said dimple, operating said computer controlled optics system to apply a vacuum to a holder, operating said computer controlled optics system to move said holder atop said head so that said head is lifted upwards by said vacuum and held against a bottom surface of said holder, operating said computer controlled optics system to move said head and said holder upwards away from said optics, operating said computer controlled optics system to move said head and said holder horizontally away from said tool, operating said computer controlled optics system to determine the current location of the center of said dimple by scanning said perimeter segments of said circumference of said dimple, operating said computer controlled optics system to move said tool a required amount to position said dimple in a precise location required for said center of said dimple to receive said center of said head, operating said computer controlled optics system to move said holder and said head horizontally to position said center of said head over said center of said dimple, operating said computer controlled optics system to lower said holder so that said head is placed onto said arm while said center of said head remains immediately over said center of said dimple, operating said computer controlled optics system to affixed said head to said arm by means of said adhesive, and operating said computer controlled optics system to remove said vacuum to release said head from said holder. - View Dependent Claims (10)
-
Specification