Fixtureless manufacture of bonded actuator/coil assemblies

• Main Authors: MORTON TODD M, FRUGE TAVE J, BRAUSE DAVID D
• Format: Patent
• Language: English
• Published: 06.10.2009
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PHYSICS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An actuator/coil assembly (136) is disclosed where two different bonding operations are used. First, a bobbin (164) is overmolded to a coil (172), and a first overmolded part (176) is overmolded to both the coil (172) and a fan tail (152) of the actuator (140). The overmolding operation defines one or more adhesive receptacles (168) in the bobbin (164) on a perimeter that interfaces with the coil (172), and further defines one or more adhesive receptacles (180) in the first overmolded part (176) on a perimeter that interfaces with the coil (172) and that interfaces with the fan tail (152) of the actuator (140). Adhesive (184) is disposed within these receptacles (168, 180) to increase the stiffness of the actuator/coil assembly (136).