摘要:
A flexible rail machine tool couples temporarily to a structure by vacuum cups and positions a tool head at any desired point over an area. The toolhead can perform operations such as drilling, bolt insertion, and acquisition of dimension data. The flexible rail can conform to surface curvature in one or more axes. Tool head perpendicularity to the structure can be sensed and adjusted as needed. The as-attached position of the rail may be compensated for through coordinate transformation, allowing holes, for example, to be placed with substantial precision.
摘要:
An automated assembly machine for fabricating large mechanical structures including a floor assembly jig for receiving and holding parts in a desired orientation, a pair of carriages, a first drive mechanism for independently driving the carriages longitudinally, a second drive mechanism for moving the carriages vertically, a tool tray mounted on the carriages, and a plurality of tools, including a drill, a hole diameter measurement probe, a nut runner, and an electromagnetic riveter, mounted on the tool tray for lateral movement toward and away from a workpiece clamp-up position. The tools are positioned at the workpiece clamp-up position by moving one of the carriages longitudinally along the floor assembly jig and raising the other carriage to elevate the tool tray to a desired elevation.
摘要:
A rotating internal support for a large hollow structure can include a rigid central truss and two or more annular disks coupled to the truss by support arms. The annular disks can be axially spaced along the longitudinal centerline of the truss, and can be coupled to the support arms by guide rollers that allow the annular disks to rotate about a central axis. The internal support can also include support rods with contact pads that extend axially around the annular disks to contact and support the inner surface of the large hollow structure.
摘要:
A method and apparatus for performing operations on a work piece comprises a flexible rail system and a multi-axis carriage. The flexible rail system may be capable of being attached to a work surface. The multi-axis carriage may be coupled to the flexible rail system. The multi-axis carriage may be capable of moving along the flexible rail system and may be capable of moving a tool in axes relative to the work surface. The tool may be single use or multi use and may be removably coupled to the frame and or carriage
摘要:
A through-flange for attaching a pipe to the curved sidewall of a vessel. A flange portion of the through-flange is contoured to match the curvature of the sidewall and thus can be glued directly to the sidewall. A retaining ring also being contoured to match the sidewall is inserted over a tubular portion of the through-flange.
摘要:
A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on the vessel. The tank is filament wound for reinforcement, and the filaments capture the fitting to hold the fitting on the wall. The wall is opened to provide a passage through the fitting into the vessel. An apparatus is provided that carries and moves the fitting, insert, and a heater to install the fitting on the vessel.
摘要:
A method for testing fuel line integrity and flow volume in a fuel injected internal combustion engine includes the steps of turning on a fuel pump connected to a fuel supply line with the engine's fuel injectors closed so as to pressurize fuel within the fuel line to a static condition, measuring fuel system pressure in the static condition, comparing the static condition fuel system pressure with a range of predetermined static pressures for an unobstructed fuel line, opening all fuel injectors to allow fuel flow through the fuel injectors such that the fuel system is in a fully loaded condition, measuring fuel system pressure in the fully loaded condition, and comparing the fully loaded condition fuel system pressure with a range of predetermined fully loaded pressure for an unobstructed fuel line. The test can be performed without breaking the fuel line and with a minimal number of hardware components, including a communication cable, a pressure transducer, a power source, an electronic computer and video display terminal. The system for performing the test includes a processor for giving timed commands to a fuel injected apparatus, a transducer for sensing the response of the fuel injected apparatus to the timed commands, and a comparator for comparing the results of the commands, as sensed by the transducer, to predetermined values for a similar unobstructed fuel injection apparatus, so as to determine the condition of the fuel injection apparatus.
摘要:
A process of making a composite vessel with superior mechanical and aesthetic characteristics includes the steps of: A) preforming a composite thermoplastic shell (e.g., by winding a commingled roving of fiberglass and a thermoplastic material onto a thermoplastic liner) having an opening for access to the interior; B) placing the shell (which may optionally be preheated) into a mold (which itself may optionally be preheated); C) introducing an inflatable bag containing a heater into the shell through the opening; D) heating the inflatable bag to a temperature which is sufficient to render the shell fluid while pressurizing the interior of the inflatable bag; E) continuing step D) until the shell forms against the interior walls of the mold; F) allowing the formed composite vessel to cool; G) removing the inflatable bag; and H) removing the formed composite vessel from the mold. Prior to step C), an insert having an opening may be juxtaposed in alignment with the opening in the shell such that, during step C), the inflatable bag is inserted through the opening in the insert. If desired for the intended purpose of the composite vessel, a portion of the exterior surface of the insert may be threaded such that threads are formed in the opening of the shell whereby the insert can be unscrewed leaving a threaded port into the vessel.
摘要:
A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on the vessel. The tank is filament wound for reinforcement, and the filaments capture the fitting to hold the fitting on the wall. The wall is opened to provide a passage through the fitting into the vessel. An apparatus is provided that carries and moves the fitting, insert, and a heater to install the fitting on the vessel.
摘要:
An improved method of packaging semiconductor devices and dice which comprises coating a semiconductor wafer with a polyimide film, etching selected areas of the polyimide film from the surface of the wafer, separating the wafer into a plurality of semiconductor dice wherein each of the dice have electrical contacts to circuits within the device and making ohmic electrical connection with the electrical contacts on the dice.