摘要:
A magnetic indexer for locating a device producing a magnetic field in a blind or inaccessible position of a work piece. A magnet is initially placed on a first side of the work piece such that a magnetic field produced by the magnet extends through the work piece and substantially perpendicular to a surface of the work piece. A device comprising a plurality of probes for sensing magnetic fields is then positioned over a second surface of the work piece. The probes are then moved over the second surface to determine the location of the axis of the magnet via the strength of the sensed magnetic field. Once the position of the axis of the magnet is determined, the work surface is either marked or worked on through the platform on which the probes are positioned. In particular, a hole may be accurately drilled or otherwise formed directly over the magnet even when the first surface of the work piece cannot be seen. Additionally, the present invention allows a very accurate positioning of a work tool on the second surface without the need to first visualize the first surface of the work piece.
摘要:
A laser-guided coordination hole tool for precisely drilling holes in large parts includes a positioning table, a bushing cavity for receiving drill bushings, a clamping device, and a laser target. A laser-guided coordination hole tool may include a software interlock to prevent drilling in an improper location on the part. A method of drilling coordination holes includes probing a part to determine its reference frame, rigidly affixing a laser-guided coordination hole tool to the part, probing a target on the laser-guided coordination hole tool to determine the reference frame for the laser-guided coordination hole tool, accurately positioning a drill bushing over the hole location, and drilling a hole. A system for drilling coordination holes includes a laser-guided coordination hole tool, a bushing, a tooling, a drill motor, a laser tracker, and a computer running a coordination-hole drilling program.
摘要:
An improved drilling device for drilling normal holes in a workpiece surface is carried and positioned by an automatic control arm. The improved drilling device includes a compliant drill head generally comprising a drill housing and a pressure foot. The pressure foot for contacting the workpiece surface is connected to the drill housing at a universally swiveling joint. The drill housing encloses a drill drive means that advances and rotates a drill tool about a drill axis. Both the pressure foot and the drill housing have axial chambers and holes for permitting the drill tool to advance to the workpiece surface. Linear gauges mounted to the drill housing probe the orientation of the pressure foot relative to the drill housing. The linear gauges provide data to the automatic control arm so that when the pressure foot contacts a portion of the workpiece surface that is not normal to the drill axis and the pressure foot swivels relative to the drill housing as the pressure foot orients normal to the workpiece surface, the control arm can realign the drill housing with the pressure foot so that the drill axis is normal to the work piece surface and so that the drill tool can be advanced and rotated toward and through the workpiece surface there by drilling a normal hole in the workpiece surface.
摘要:
A method of riveting includes drilling a hole in a workpiece with a drill bit held in a spindle mounted on an axial centerline of a drill/rivet machine. The drill descends through a drill/suction cavity of a movable shuttle and drill chips cut by the drill bit are suctioned away from the workpiece as they are made. The drill bit is withdrawn to a level just above the drill/suction cavity, which is then moved to position a rivet insert station over the newly drilled hole in the workpiece. A rivet is blown into the rivet insert station, is guided into alignment with the hole and injected directly into the hole by air pressure. The shuttle moves a rivet die over the newly installed rivet in the hole and a driver of an electromagnetic riveter is lowered into contact with the die, which in turn is pressed against the rivet head. Another rivet die is pressed against the rivet tail on the other side of the panel by a driver of another electromagnetic riveter. Both electromagnetic actuators are energized to propel the drivers toward each other and cause the dies to upset the rivet.
摘要:
A method of mist lubrication of a drill, suctioning chips cut by the drill, and cooling the coil of an electromagnetic riveter includes aligning the open top of a drill/suction cavity of a movable shuttle body with a drill which descends through the cavity and through a tapered opening at the bottom of the cavity to drill a hole in a workpiece clamped by a pressure foot attached to a carrier in which the shuttle body slides. As the drill descends through the cavity, mist lubrication is blown on the drill bit through a nozzel aligned with a port opening in the side of the cavity. Drill chips cut by the drill bit are suctioned away from the workpiece as they are made through a second port opening in the side of the cavity which is connected to a vacuum hose. Air is blown into the cavity through the same nozzel to swirl the chips as they are being cut by the drill to facilitate their removal through the vacuum port. The coil of an electromagnetic riveter is cooled by conduction to a transducer with which the coil is in contact. The transducer is cooled by unconditioned plant air blown across a set of fins in the sides of the transducer.
摘要:
Apparatus and methods for use are disclosed for coordinating a hole of one part with a hole of another part. The apparatus may include a base member, a pin member defined by a slot having a first length in one direction which is greater than a second length in a second direction, and an index member extending beyond an end of the base member. The index member may be adapted to position the first length of the slot in a position parallel to a datum of a part being joined by the apparatus. During operation, a portion of the pin member may be inserted in a hole of one part. The slot may be at least partially aligned with a second, smaller hole in another part.
摘要:
A method for locating a device, which produces a field, with a probe assembly affected by the field. The method may involve: placing a device on a first side of a work piece; producing a field with the device through the work piece; using a robot to hold and to place a probe assembly adjacent a second side of the work piece; providing information from the probe assembly to the robot that is used by the robot to move the probe assembly to substantially determine a position of the device; determining a location of a center field axis of the field with the probe assembly; and providing a physical confirmation of the center field axis to a user.
摘要:
A method of cooling the coil of an electromagnetic riveter includes bringing a transducer into contact with the coil and transferring heat from the coil to the transducer by conduction. The heat is removed from the transducer by unconditioned plant air blown across a set of fins in the sides of the transducer.
摘要:
This invention relates to a machine and its constituent components for drilling a hole in a workpiece, inserting a rivet in the hole, and upsetting the rivet, all without moving the lateral position of the machine or the workpiece, and to an assembly for supporting and positioning a plurality of said machines for working simultaneously on the workpiece.
摘要:
A method for locating a device producing a magnetic field in a blind or inaccessible position of a work piece. A magnet is initially placed on a first side of the work piece such that a magnetic field produced by the magnet extends through the work piece. Probes are then positioned over a second surface of the work piece to determine the location of the axis of the magnet via the strength of the sensed magnetic field and the location where the strength measurements are made. Once the position of the axis of the magnet is determined, the work surface is either marked or worked on through the platform on which the probes are positioned. In particular, the present invention allows a very accurate positioning of a work tool on the second surface without the need to first visualize the first surface of the work piece.