摘要:
The subject of the present invention is a pallet carrier for machine tools, said carrier being mounted on an NC work table and comprising profiled slideways as well as centering elements and hydraulic clamping members. For thorough cleaning and improved adjustment the invention provides pressure-fluid ducts within the pallet carrier coupled to quick-action connectors in the front of the pallet carrier and leading to spray nozzles which are disposed within the slide faces of the said slideways.
摘要:
The invention is directed to a machine tool for laser beam machining of workpieces, comprising a housing mounted on a column and having a longitudinally movable guide tube disposed therein. The rear end portion of the housing has a laser unit mounted thereon, and the laser beam passes through a focussing optical system and exits from a nozzle head provided with means for supplying at least one fluid to the central exit opening of the laser beam. In order also to enable metal cutting machining of a workpiece the invention provides for a motor driven hollow main spindle journaled within the housing, the spindle having locking elements for fixing a tool holder therein. Advantageously, the focussing optical system and the nozzle head are attached to a standardized tool holder which can be fitted into the main spindle.
摘要:
A machining center having a bed that supports a work table, a carriage movable along the bed, an upright column moveable across the carriage, a machining head movable vertically on the upright column and a tool magazine with a tool changer. The bed is designed as an inclined bed with a downward slope toward the rear and the work table is mounted on the front side of bed by means of a suitable console.
摘要:
A mechanism for angularly positioning the work spindle of a program-controlled milling and drilling machine. The positioning mechanism comprises a drive unit mounted on the spindle housing for rotating the spindle after the main drive has been shut off, and a locating member for locating the work spindle when it has reached its predetermined angular position. In accordance with one embodiment of the invention, the drive unit comprises an electric motor the shaft of which is adapted to be selectively coupled by means of a pinion to a gear mounted on the spindle. The locating member is a spring-loaded indexing bolt having a centering cone for engagement in a bore formed in the gear. The electric motor and the indexing bolt are mounted on a pivot plate which is pivoted by an actuating drive from an upper inoperative position to a lower operative position.
摘要:
The invention relates to a device for checking for tool breakage in machine tools having a sensor for sensing a clamped tool before and after a machining operation and an electronic device for evaluation of the measurement detected by the sensor. According to the invention the sensor is constructed as a moveable feeler rod (5) and in each measuring operation is pressed against the tool tip with an adjustable force independent of the length of the tool (7) concerned. A device for determining the respective measuring position of the feeler rod (5) provides the data for the evaluation.
摘要:
This invention concerns a control unit for program-controlled machine tools with control circuits for the individual feed motors (20) of the moving machine parts (2) which are connected to the program control unit (34) and also contain at least one switching element (14) for manually switching on feed motors (20). In order to give the operator a feel for the respective operating process in manual operation, each control circuit according to this invention has at least one sensor (26, 42) for detecting a power parameter (I;M) of the respective feed motor (20). Furthermore, a brake gear (30 or 44) that is controlled by the output signals of the sensor (26; 42) is assigned to each switching element that is designed as a manually adjustable control element (14), whereby the braking device is actuated in proportion to the power parameters picked up by the sensors and it makes continued turning of the control element which is designed as a hand crank more difficult.
摘要:
An auxiliary magazine for electronically-driven machine tools which greatly increases the efficiency and tool magazine capacity of the machine tool. A separate unit has revolving chain tool storage units adapted to integrate, through a guide shoe, with the machine-native magazine.
摘要:
The invention is directed to an indexing attachment for a numerically controlled milling machine, comprising an indexing spindle rotatably supported in the casing for receiving a workpiece chuck, a bottom plate for fixing the casing on a worktable, and clamping means for fixing the indexing spindle in the various indexing positions. The indexing attachment is to be of simple and inexpensive structure and intended to permit--without any drive means of its own--programme-controlled indexing operations and thus milling steps along five axes. To this end the indexing spindle (10) of the indexing attachment (8) is adapted to be coupled with a driver (4) mounted on a part (2) of the milling machine and to be driven by programme-controlled motions of the milling machine. The end face of the indexing spindle (10) may be fixedly connected to a plate (12), said plate being formed with an eccentrically located recess (13) for engagement with the driver (4), which driver may be in the form of a pin capable of being clamped in the main spindle (3).
摘要:
A tightening and clamping mechanism for the mandrel collar of a milling or boring spindle. The clamping elements are semi-circular devices with notches in their outer surfaces. By engaging the notches with retainer pins and tightening actuators, the clamping elements may be closed around the mandrel collar thereby securing it to the spindle housing.
摘要:
A machining tool, in particular a polishing head and its attachment to mount it to the spindle housing of a milling machine. The invention provides the machining tool with an adapter arranged on the front side of the spindle housing to which the housing of the machining tool is attached, sluable on a transverse plane at a right angle to the spindle axis. The adapter has a coupling for the rotary connection to the horizontal work spindle as well tension devices to compensate for play.