Methods and apparatus for identifying hooks of electric motors
First Claim
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1. The method of making electric motor armatures using a deforming member to deform a first portion of a workpiece and using an electronic circuit to recognize said first portion, the method comprising the steps of:
- moving said deforming member relative to said workpiece in order to cause said deforming member to contact and apply force to said first portion, to deform said first portion and thereby distinguish said first portion from a second portion of said workpiece;
contacting a contact member against said workpiece;
applying a predetermined voltage signal between a sensing electrode and said contact member;
moving said sensing electrode along an axis, and simultaneously monitoring displacement of said sensing electrode movement, until said electrode reaches a predetermined displacement;
determining whether said sensing electrode is in contact with an individual portion of said workpiece at said predetermined displacement, thereby establishing a circuit path for said voltage signal;
identifying said individual portion as a first portion or a second portion based upon whether a circuit path is established; and
fusing said individual portion using a fusing operation which varies depending on whether said portion is identified as a first portion or a second portion.
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Abstract
Methods and apparatus for marking and identifying a commutator hook of an electric motor are provided. A preselected commutator hook is marked by deforming the hook while the armature is in a winding machine, with a known angular position. The marked hook is identified by apparatus which determines whether or not the hook has been deformed while in the winding machine, and thereby recognizing the hook.
12 Citations
34 Claims
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1. The method of making electric motor armatures using a deforming member to deform a first portion of a workpiece and using an electronic circuit to recognize said first portion, the method comprising the steps of:
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moving said deforming member relative to said workpiece in order to cause said deforming member to contact and apply force to said first portion, to deform said first portion and thereby distinguish said first portion from a second portion of said workpiece; contacting a contact member against said workpiece; applying a predetermined voltage signal between a sensing electrode and said contact member; moving said sensing electrode along an axis, and simultaneously monitoring displacement of said sensing electrode movement, until said electrode reaches a predetermined displacement; determining whether said sensing electrode is in contact with an individual portion of said workpiece at said predetermined displacement, thereby establishing a circuit path for said voltage signal; identifying said individual portion as a first portion or a second portion based upon whether a circuit path is established; and fusing said individual portion using a fusing operation which varies depending on whether said portion is identified as a first portion or a second portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Apparatus for making electric motor armatures using a deforming member to deform a first portion of a workpiece and using an electronic circuit to recognize said first portion, said apparatus comprising:
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means for deforming said first portion of said workpiece by moving said deforming member relative to said workpiece in order to cause said deforming member to contact and apply force to said first portion, to deform said first portion and thereby distinguish said first portion from a second portion of said workpiece; a contact member which is placed in physical contact with said workpiece; a sensing electrode; a predetermined voltage supply which supplies a predetermined voltage signal between said contact member and said sensing electrode; means for monitoring displacement of said sensing electrode movement; means for moving said sensing electrode along an axis until said sensing electrode reaches a predetermined displacement; means for determining whether said sensing electrode is in contact with an individual portion of said workpiece at said predetermined displacement, thereby establishing a circuit path for said voltage signal; means for identifying said individual portion as a first portion or a second portion based upon whether a circuit path is established; and means for fusing said individual portion using a fusing operation which varies depending on whether said portion is identified as a first portion or a second portion. - View Dependent Claims (10, 11, 12, 13)
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14. The method of making electric motor armatures using a deforming member to deform a first portion of a workpiece and using an electronic circuit to recognize said first portion, the method comprising the steps of:
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moving said deforming member relative to said workpiece in order to cause said deforming member to contact and apply force to said first portion, to deform said first portion and thereby distinguish said first portion from a second portion of said workpiece; contacting a contact member against said workpiece; applying a predetermined voltage signal between a sensing electrode and said contact member; moving said sensing electrode along an axis, and simultaneously monitoring displacement of said sensing electrode movement, such that said sensing electrode comes in contact with an individual portion of said workpiece, thereby establishing a circuit path for said voltage signal; recording said displacement when said circuit path is established; comparing said recorded displacement with a plurality of predetermined displacements to identify whether said individual portion is a first portion or a second portion; and fusing said individual portion using a fusing operation which varies depending on whether said portion is identified as a first portion or a second portion. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. Apparatus for making electric motor armatures using a deforming member to deform a first portion of a workpiece and using an electronic circuit to recognize said first portion, said apparatus comprising:
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means for deforming said first portion of said workpiece by moving said deforming member relative to said workpiece in order to cause said deforming member to contact and apply force to said first portion, to deform said first portion and thereby distinguish said first portion from a second portion of said workpiece; a contact member which is placed in physical contact with said workpiece; a sensing electrode; a predetermined voltage supply which supplies a predetermined voltage signal between said contact member and said sensing electrode; means for moving said sensing electrode along an axis such that said sensing electrode comes in contact with an individual portion of said workpiece, thereby establishing a circuit path for said voltage signal; means for monitoring displacement of said sensing electrode movement; means for recording said displacement when said circuit path is established; means for comparing said recorded displacement with a plurality of predetermined displacements to identify whether said individual portion is a first portion or a second portion; and means for fusing said individual portion using a fusing operation which varies depending on whether said portion is identified as a first portion or a second portion. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification