Abstract:
According to the invention a hollow cylindrical shank of electrically conducting metal is connected to a resistance welder. A coolant supply tube passes through the shank and has an interior coolant supply passage. The coolant supply tube has an outer diameter less than the inner diameter of the hollow cylindrical shank. A weld cap seats on the shank and has a cap tip and a cap skirt that depends from the cap tip and is attached to the shank. An underside of the cap tip faces the shank and the supply tube. A coolant receiving bore formed into the underside of the weld cap extends into the cap tip to receive the coolant supply tube part way into the bore. The bore formed into the underside of the cap tip defines a bore sidewall that provides added area of heat transfer contact between the coolant and the cap tip.
Abstract:
A friction stir nut is disclosed. The friction stir nut includes a body, a cap, and an anti-rotation feature. The body has an elongated cylindrical shank extending between a first end and a second end, the cap being disposed at the second end, and the anti-rotation feature being disposed at the cap and/or an outer surface of the body. The body and cap have a blind axial hole extending from the first end to the second end, the first end being blind and the second end being open. The outer surface of the first end has a flat surface oriented substantially perpendicular to the axis of the shank, and the body has a cylindrical wall thickness suitable for receiving internal threads. In response to a mandrel tool friction stir welding the friction stir nut to a workpiece and then being extracted, uniform internal threads result at the body. The anti-rotation feature bonds to the workpiece by metallurgical bonding and/or mechanical bonding.
Abstract:
A latch assembly includes a plunger having a ramp and a lip, with a support member defining an opening through which the plunger extends. A support surface partially defines the opening and supports the plunger. The plunger is selectively movable between an extended position, in which the plunger protrudes a first distance from the opening, and a retracted position, in which the plunger protrudes a second distance from the opening, with the second distance being less than the first distance. In the extended position, the ramp and the lip are on a first side of the opening. In contrast, in the retracted position, the ramp and the lip are on a second side of the opening, with the lip engaging the support member to maintain the retracted position.
Abstract:
A sliding load floor assembly for a motor vehicle comprises a sliding platform configured to receive a load floor and slidable along a support frame fixed to the vehicle. The support frame includes upper and lower flanges. An axle extends outward from the sliding platform, with a roller rotatably attached thereto and movable along the upper and lower flanges. The roller configuration elevates the sliding platform above a vehicle floor, while allowing the sliding platform the move between a stowed position and an extended position. A wedge is configured to exert a vertical force upon a portion of the sliding platform in the stowed position, thereby preventing vertical movement of the roller to reduce vibration. At least one detent member and at least one latch member are selectively engageable with one another to restrict movement of the sliding platform with respect to the support rail.
Abstract:
An improved spot welding tip is adapted for welding a set of adjacent members within a heated zone during a welding program, wherein a quantity of energy is produced, and for reducing the final base temperature of the heated zone. The tip presents a distal engaging surface for contacting one of the members and defines a preferably inner space located a preferred distance from the surface. A phase changing body is releasably retained within the space. At least a portion of the body changes from a first phase to a second phase by absorbing at least a portion of the heat energy during the welding program.
Abstract:
A friction stir rivet is rotated and driven through a first fusible workpiece into an engaged second fusible workpiece, causing local portions of the first and second workpieces to plasticize. A slideable cap contacts the exposed surface of the first workpiece shortly after the process begins. The contact causes the cap to act as a retaining element, limiting the escape of plasticized material from stir site. Once the rivet is driven into the first and second workpieces, rotation ceases and the plasticized material hardens around the rivet. A weld is thus created, joining the workpieces and encompassing the rivet, which provides additional mechanical strength.
Abstract:
A method for adjusting a plurality of vehicle cockpit devices via a two-part process that utilizes device position constraints to determine candidate arrangements and then, ultimately, recommended arrangements of the vehicle cockpit devices to determine a desired setting of the various devices. The position constraints are determined using positioning data obtained from an occupant. An exploratory search routine is used to determine the candidate arrangements with the cockpit devices being moved to each candidate arrangement so that the occupant can be queried concerning the desirability of each such arrangement. The occupant's responses are then stored for later retrieval. Thereafter, a plurality of recommended arrangements of the cockpit devices are determined using a meta-heuristic pattern search along with a neural network search accelerator that permits screening of each recommended arrangement. The occupant can then select one of the recommended arrangements as a final positioning arrangement of the cockpit devices.
Abstract:
A reconfigurable clamp for a flexible manufacturing system comprises a body portion, a plurality of pins slidably engaged within sleeves formed in the body portion, a compression spring attached to each shaft of the plurality of pins, a reservoir comprising a magnetorheological fluid in operative communication with the plurality of pins, and an electromagnet in operative communication with the magnetorheological fluid, wherein the electromagnet selectively increases a yield stress property of the magnetorheological fluid; and a matching pressure foot.
Abstract:
Reconfigurable clamps, clamp systems are disclosed herein that are suitable for a flexible manufacturing process such as, for example, in the manufacture of automotive body panels. The reconfigurable clamp generally includes a body comprising a sleeve extending into a stationary portion and through a rotatable portion, wherein the rotatable portion includes a slot opening coaxially aligned with the sleeve, and wherein the slot opening comprises a termination point; a shaft fixedly attached to the rotatable portion; and a pin disposed in sliding engagement with the sleeve, wherein the pin comprises a head, a shaft extending from the head, and a compression spring in operative communication with the shaft and the stationary portion, wherein the shaft further comprises an engageable portion adapted to lockingly engage the termination point upon rotation of the rotatable portion.
Abstract:
Disclosed herein is a strut assembly 10 comprising a housing 2; a piston 3 in slideable communication with the housing 2; an actuator 16 in operative communication with the piston 3 and/or the housing 2; wherein the actuator 16 is adapted to change the location of the housing 2 from a first position to a second position and/or change in a stroke length of the piston 3. Disclosed herein too is a method for changing the strut length of a strut assembly 10 comprising activating an actuator 16 that is in operative communication with a housing 2 or a piston of the strut assembly 10; and changing in the location of the housing 2 from a first position to a second position and/or changing a stroke length of the piston 3.