PNEUMATIC CLAMP
A clamp having a pneumatic cylinder with an actuating rod connected to one end of a drive arm which has its other end attached to a crankshaft which in turn has crankpins eccentrically mounted thereon to drive inner and outer clamp arms between retracted and advanced positions corresponding to open...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | A clamp having a pneumatic cylinder with an actuating rod connected to one end of a drive arm which has its other end attached to a crankshaft which in turn has crankpins eccentrically mounted thereon to drive inner and outer clamp arms between retracted and advanced positions corresponding to open and closed positions of the clamp. The length of the drive arm, the extent to which the crankpins are offset from the crankshaft, the specific portion of a quadrant through which the crankpins are rotated, and the distance between the application of the force to the clamp arms and the axes about which the clamp arms pivot all provide a significant mechanical advantage and an extremely large clamping force from relatively low pressure compressed air supplied to the pneumatic cylinder.
Una abrazadera que tiene un cilindro neumatico con una varilla de accionamiento conectada a un extremo de un brazo impulsor que tiene su otro extremo unido a un ciguenal que a su vez tiene munones del ciguenal excentricamente montados en la misma para impulsar a los brazos de sujecion interiores y exteriores entre las posiciones retractadas y de avance que corresponden a las posiciones abiertas y cerradas de la abrazadera. La longitud del brazo impulsor, es la extension a la cual los munones del ciguenal se compensan desde el ciguenal, la porcion especifica de un cuadrante a traves del cual los munones del ciguenal se giran, y la distancia entre la aplicacion de la fuerza a los brazos de sujecion y los ejes sobre los cuales los brazos de sujecion giran, todo esto proporciona una ventaja mecanica importante y una fuerza de sujecion sumamente mayor del aire comprimido a presion relativamente baja suministrada al cilindrico neumatico. |
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