Patent ID: 6009617
Filing Date: 2000-01-04
Classification: H01H,Y10T

Abstract:
A computer keyboard assembling apparatus, comprising a holding plate, a support plate and a pushing mechanism commonly mounted on a work table and a keyboard support tray positionable on the support plate, the keyboard support tray comprising a tray-like member defining therein a cavity having a side opening, adapted to receive therein a metal plate and an insulation pad that constitute a keyboard part, the metal plate having a plurality of engaging members thereon and the insulation pad having a plurality of counterpart engaging members thereon which are engageable with the engaging members of the metal plate by means of a relative movement therebetween, the work table comprising a flat member on which the support plate is fixed, the work table further comprising first power cylinders that are mounted in such a way to have cylinder rods of the first power cylinders extendible toward the support plate, the cylinder rods having remote ends to which the holding plate is fixed to be in overlying relationship with the support plate to define therebetween a clamping space for accommodating the keyboard support tray therein, the holding plate being movable relative to the support plate by being driven by the first power cylinders, the holding plate comprising reference holes formed thereon, the support plate having a plurality of dwell pins provided thereon for correctly positioning the keyboard support tray thereon, the keyboard support tray having reference pins to allow the holding plate to be correctly positioned on and press the keyboard support tray by alignment of the reference pins with the reference holes of the holding plate when the holding plate is moved toward the support plate, the pushing mechanism comprising a base fixed to the work table and having second power cylinders fixed thereon with a movable block fixed to cylinder rods of the second power cylinders to be moved thereby toward the keyboard support tray, a micro-switch being provided on the work table at such a position to be triggerable by the holding plate that is moving toward the support plate to actuate the second power cylinders, wherein the downward movement of the holding plate is adapted to hold the metal plate and the insulation pad of the keyboard part in the cavity of the keyboard support tray that is supported on the support plate and a further downward movement of the holding plate triggers the micro-switch to actuate the second power cylinders to drive the movable block toward the keyboard support tray to contact and apply a pushing force to the metal plate through the side opening of the keyboard support tray, thus causing relative movement between the metal plate and the insulation pad to have the engaging members of the metal plate securely engage the counterpart engaging members of the insulation pad.