摘要:
On décrit une contre-poupée (1) pour recevoir des pièces à usiner sur des machines d'outillage, notamment des machines à dresser, comprenant une partie supérieure de contre-poupée (5) dans laquelle est monté un manchon de contre-poupée axialement mobile (7). Ladite partie supérieure (5) est déplacée verticalement par rapport à la partie inférieure de la contre-poupée (2) le long de colonnes de guidage verticales (14). Dans sa position de départ, la partie supérieure (5) repose sur des boulons de butée (17). La partie supérieure (5) peut ainsi suivre le mouvement vers le haut qu'effectue l'extrémité de la pièce à usiner qu'elle porte.
摘要:
A compensation device mounted on the secondary support or on the tailstock allows the relaxation of the workpiece in its natural position relieving all the residual stresses introduced by the chip removal operations and the compensation of the relative deformation before finish machining. The relaxation procedure is automatic and programmable.
摘要:
The present disclosure provides a tailstock transferring apparatus (50) including: a ball screw (52) which is rotated by being supplied with driving power from one side; a connecting member (54) which accommodates the other side of the ball screw (52); and a thrust generating unit (60) which is fastened to the connecting member (54) and provides thrust in a direction toward the other side of the ball screw (52) when the ball screw (52) receives force in one side direction.
摘要:
Um die Investition in eine separate Kaltwalzmaschine für das Aufbringen von Gewinden etc. zu sparen, wird eine Kaltrolleinheit (2) verfahrbar auf die Z-Führungen der Drehmaschine gesetzt, die dadurch wesentlich größer, stabiler und verschleißärmer als die in einem Werkzeugrevolver eingesetzten Kontrolleinheit arbeitet. Selbst Parallelbearbeitung durch Drehen und Walzen ist dadurch möglich.
摘要:
The present invention provides a disengageable automatic system for torsional and radial compensation realized by the assembly of two parts: a secondary support with direct transmission (unitary transmission ratio) and an automatic device mounted on it. The system is used together with another rotational synchronized axis (primary support). The torsional relaxation is carried out by the secondary support and the radial relaxation is carried out by the automatic device. They are structurally independent and separable. In case of combined use, the effects let the workpiece achieve its natural position (deformed) and realize the complete workpiece relaxation. Leaving enough stock on the workpiece during the roughing operation (greater than the deformation expected), the finishing operation can be performed immediately without losing the zero point. In such a way the deformation compensation is automatic.
摘要:
A control panel 21 has a display screen 22. An operator turns a low-thrust pressing key 28 ON in the menu key group 26 displayed on the display screen 22. In this state, the operator turns an operating dial 32 of a manual pulse generator 31, thereby causing an encoder 34 to generate pulses. When the encoder 34 outputs a pulse signal as a command signal, and a servomotor 17 is driven in accordance with the command signal, the tailstock is advanced. With the distal end of a tailstock center contacting a center hole of the workpiece, the operator turns the operating dial 32, thereby finely adjusting the drive torque of the servomotor. Accordingly, the thrust of the tailstock center is finely adjusted, so that the tailstock center is pressed against the workpiece by a low thrust.
摘要:
Um die Investition in eine separate Kaltwalzmaschine für das Aufbringen von Gewinden etc. zu sparen, wird eine Kaltrolleinheit (2) verfahrbar auf die Z-Führungen der Drehmaschine gesetzt, die dadurch wesentlich größer, stabiler und verschleißärmer als die in einem Werkzeugrevolver eingesetzten Kontrolleinheit arbeitet. Selbst Parallelbearbeitung durch Drehen und Walzen ist dadurch möglich.