摘要:
This invention discloses a conveyor table, including a supporting construction having a first supporting surface for supporting articles to be conveyed, a plurality of conveyor elements mounted to the supporting construction and defining a second supporting surface for supporting the articles to be conveyed, an actuator for selectively moving one of the supporting surfaces with respect to the other to selectively enable either the first supporting surface defined by the supporting construction to support the articles, or the second supporting surface defined by the conveyor elements to support the articles, and a drive for driving the conveyor elements to convey the articles in a predetermined direction when the articles are supported by the second supporting surface defined by the conveyor elements.
摘要:
A precision assembly table and method includes a plurality of rigid bars connected to adjustable support members which can individually adjust the position of the rigid bars above a surface and a frame to create a desired contour. The structure to be assembled, such as a magnetic levitation guideway, is positioned and held in place on top of the rigid bars which have been positioned so as to define a desired contour of the structure and to which the structure will mechanically conform. The position of the rigid bars is monitored and adjusted by a computer to maintain the desired contour while the structure resting on the rigid bars is being assembled.
摘要:
A method of assembling electronic equipment using a work station which comprises a rotatable work surface, a fixed work surface and a support frame. The rotatable work surface is rotatably mounted to the fixed work surface which is, in turn, mounted to the support frame. The work station includes a locking mechanism positioned between the rotatable work surface and the fixed work surface for adjusting the rotational orientation of the rotatable work surface. The rotatable work surface and the fixed work surface are both made of an electrostatic discharge (ESD) safe material.
摘要:
A top load threaded bolt assembly (60) for restraining a workpiece (36) on a operating surface (32) of a tooling fixture (50) is provided. Top load threaded bolt assembly (60) includes a housing (66) having a bolt cavity (75) and a bolt passage (76) disposed within housing (66). A bolt (64) having a first threaded portion (70) is disposed within bolt cavity (75) such that first threaded portion (70) extends above a operating surface (32) of tooling fixture (50). The top load threaded bolt assembly (60) may be disposed in the operating surface (32) of tooling fixture (50). Top load threaded bolt assembly (60) may further include a conical spring (62) to bias bolt (64) in an extended position. Bolt (64) may be secured in a non-extended position by threading a second threaded portion (72) into a threaded passage (58) which is adjacent bolt cavity (75) and opposite bolt passage (76).
摘要:
A machine including a loading station for loading a pack of panels; a cutting station in which a cutting line is defined; a fixed structure located between the loading and cutting stations presenting a work surface; and a device for 90.degree. rotation of the pack of panels loaded onto the work surface. The 90.degree. rotation device includes: a frame for supporting the pack; a mechanism for moving the frame from a level below to a level above the work surface and vice versa; and a mechanism for rotating the frame 90.degree. clockwise and vice versa. The work surface presents first and second openings with longitudinal axes respectively parallel and perpendicular to the cutting line, for enabling movement of the frame from a level below to a level above the work surface and vice versa.
摘要:
The invention is an improved membrane press, and method of elevating a workpiece above the supporting surface of a work base. The membrane press includes a work base having a supporting surface for carrying the workpiece, and a foil-pressing frame positioned above the workpiece for heating and applying the laminating foil to the workpiece. The improvement in the membrane press includes a plurality of workpiece-lifting pedestals residing substantially beneath the supporting surface of the work base. A piston is located beneath each pedestal, and responds to the placement of the workpiece onto the supporting surface of the work base. The piston imparts an upward force on certain ones of the pedestals residing adjacent to and beneath the workpiece to raise the pedestals and workpiece upwardly above the supporting surface of the work base. The raised pedestals permit the top surface, corners, and peripheral borders of the elevated workpiece to be laminated.
摘要:
The invention is a workbench consisting of a top working surface containing a rows and columns of holes that allow dust and chips to fall and be drawn through where they land in a plenum below the surface. The top surface and the plenum are supported by a rectangular frame that includes four legs and a shelf between the plenum and the bottom of the legs. The shelf supports a doorless cabinet that includes areas for storing tools and supplies. The plenum slopes to a point containing an off center aperture which is connected through an adapter to a vacuum cleaner. The vacuum cleaner has a bifurcated input manifold with gate valves which allows the user to select between applying the vacuum to the plenum or applying the vacuum to a hose containing a vacuum cleaning tool where waste not entering the surface apertures will be removed from the top work surface.
摘要:
A support apparatus for a through-hole soldered circuit board for use with circuit board lead trimmer of the type having a planarly-movable cutting head and a base plate below the cutting head parallel to the head's plane of movement, the setup of which can be changed rapidly and with little probability of error by a low-skilled operator. The apparatus comprises a perimeter frame of uniform height, affixed rigidly and hermetically in a planar configuration by its base to the ferromagnetic base plate of the lead trimming machine; a plurality of equal-height support posts or rods, each having a board-support apex and a magnetic base perpendicular to its associated post; a support post positioning plate, the lower surface of which is drilled with a series of holes, the centers of which correspond to planar, unpopulated regions, free of conductive traces, on the populated side of a circuit board to be trimmed; and a circuit board support plate having a cut-out which is smaller, but proportionally similar to the profile of the board to be lead trimmed. The support posts are inserted into the holes in the positioning plate from its lower surface, each support post being retained in its respective positioning plate hole by its magnetized base.
摘要:
A floating fixture platen for use on machine tools having a machine support structure and a machine tool portion rotatable about an axis of rotation, the floating fixture platen including a planar member mounted on the machine support structure in a position normal to the axis of rotation of the rotating tool portion, the platen supporting a workpiece to be operated on by the rotating tool, apparatus on the support structure enabling the platen limited relative free movement in a plane substantially normal to the axis of rotation of the tool whereby rotation of the tool will produce torque in the platen and in the workpiece supported thereby, first and second oppositely facing fluid assemblies each having a piston portion engagable with a surface on the platen and positioned to oppose rotation of the platen, the fluid assemblies having pressure generated therein by the movement of the platen, and a fluid connection between the fluid assemblies to equalize the pressures therein.
摘要:
A high speed drilling system is disclosed for high speed drilling of very small holes in workpieces such as printed circuit boards. The X-Y positioning system includes air bearings to provide lift between the stationary guide beams, the crossbeam and the top table, and further includes a vacuum preloading apparatus for providing a preloading force between the table and the guide beam. The preload force dampens Z axis oscillations which can result in drill bit breakage. The top table is a lightweight honeycomb structure, whose effective rigidity is virtually that of the guide beam due to the vacuum preloading. The system includes pairs of spindles, one a conventional spindle for drilling holes larger than about 0.125 inches, and the other a high speed spindle for drilling holes in the range of about 0.003 to 0.125 inches. The high speed spindle includes a stationary spindle body carrying the stator of the rotary drive motor. Only the spindle rotor is translated along the Z axis to perform the drilling movements. The rotor is supported within the spindle body by rotary and linear air bearings, and is axially driven by a linear motor. A toolchanger loaded by clips carrying the drilling bits is mounted on the top work table, and minimizes the time required to change drilling tools. The clips minimize the manual handling of the fragile drill bits. A vacuum hold-down appratus is employed to secure the workpieces to a drilling station.