摘要:
A method for fine boring of internal surfaces of bore holes in work pieces as well as a machining plant for executing this method. The fine machining, fine boring, and honing include fine boring of a bore hole of a work piece using a fine boring tool; transferring the work piece into a honing device; measuring the fine bored bore hole with a measuring device associated with the honing device; and controlling the operation of the fine boring device depending on the bore hole measuring signal received by the measuring device. An output fine boring machining, arranged directly upstream of the transfer, is dimensioned as semi-finishing machining, and is carried out with a fine boring tool having at least one adjustable cutting edge. The position of the adjustable cutting edge is controlled depending on the bore hole measuring signal.
摘要:
The present invention relates to a method and apparatus for adjusting the weight of workpiece by twice machining a weight-adjustment portion formed on the workpiece. In the present invention, the same cutting tool is used for machining the weight-adjustment portion and the feeding position for the second machining of the weight-adjustment portion is determined in response to the weight of the workpiece after the first machining. According to the present invention, even if the tips of the cutting tool should wear because of prolonged machining operations and, as a result, the amount of the first machining is insufficient, the said insufficiency is compensated for by the second machining.
摘要:
An automatic control for a grinding system is disclosed for controlling the advancement of a grinding wheel into a workpiece to provide a substantially constant time span between the termination of the operation of the feed means which advances the grinding wheel and the attainment of the final size of the workpiece for each workpiece machined. The control generates a reference time span and if the actual time span deviates by more than a preselected time period from the reference time span, the control develops a control signal adjusting the advancement of the grinding wheel during the grinding of the following workpiece.
摘要:
An apparatus for controlling a machine tool which includes a measuring head for measuring a dimension (i.e. a diameter) of a workpiece, a detector for detecting and holding the maximum dimension measured by the measuring head, a circuit for determining the mean dimension of a plurality of measurements, a circuit for determining the dispersion between the measured dimensions and the mean, and a counter for inhibiting the control operation until a predetermined minimum number of workpieces have been measured.
摘要:
A device for calculating the mean value of a succession of data including a storage capacitor memory element for storing the mean value of a succession of input data, and a control element connected to the storage capacitor for controlling the charging and discharging of the capacitor, the control element also applying a predetermined percentage of the last data piece to the memory element and discharging the same percentage of the mean value previously stored in the memory element.
摘要:
According to a method for the fine machining of internal surfaces of bore holes in tools by fine boring and subsequent honing, the following steps are executed: Fine boring of at least one bore hole (131) in a tool (130) by means of a fine boring tool (128) of a fine boring device (120) for the creation of a fine bored hole; Transfer of the tool to a machining position of a honing device (140) for the machining of the fine bored bore hole by means of a honing tool (148A) of the honing device; Measurement of the fine bored bore hole with one of the measurement devices (160) allocated to the honing device in the machining position for the creation of at least one bore hole measurement signal representing the properties of the fine bored bore hole. The fine boring device is controlled subject to the bore hole measuring signal.
摘要:
According to a method for the fine machining of internal surfaces of bore holes in tools by fine boring and subsequent honing, the following steps are executed: Fine boring of at least one bore hole (131) in a tool (130) by means of a fine boring tool (128) of a fine boring device (120) for the creation of a fine bored hole; Transfer of the tool to a machining position of a honing device (140) for the machining of the fine bored bore hole by means of a honing tool (148A) of the honing device; Measurement of the fine bored bore hole with one of the measurement devices (160) allocated to the honing device in the machining position for the creation of at least one bore hole measurement signal representing the properties of the fine bored bore hole. The fine boring device is controlled subject to the bore hole measuring signal.
摘要:
A sensor produces signals indicating the proportions of a workpiece being machined on a machine tool, which signals control, through a control device the actions of pressure fluid valves disposed in a pressure fluid circuit. The flow of pressure fluid is used to control the rotation of an adjustment spindle through which the position of the machine tool slide guide can be controlled so that the proportions of the next machined workpiece can be made the same as the previously machined model workpiece.
摘要:
A tool arm structure comprising a movable or yieldable, tool mounting portion, adjustable control mechanism for adjusting the machining position of the tool mounting portion, and mechanism for separating the adjusting mechanism and tool mounting portion when the control mechanism is being adjusted.
摘要:
A MULTIPLE SPINDLE MACHINE TOOL WHEREIN A CROSS SLIDE AT ONE OF SEVERAL WORKING STATIONS CARRIES AN ADJUSTABLE TOOL WHICH IS ADJUSTED IN AUTOMATIC RESPONSE TO SIGNALS PRODUCED BY A MONITORING DEVICE PROVIDED AT ANOTHER STATION TO DETERMINE THE TOLERANCES OF SUCCESSIVE WORKPIECES AND TO PRODUCE SIGNALS WHEN THE TOLERANCE OF A WORKPIECE DEVIATES FROM A DESIRED TOLERANCE. SIGNALS ARE STORED AND ARE UTILIZED TO ADJUST THE TOOL WHEN A SPINDLE WHICH CARRIED A DEFECTIVE WORKPIECE DURING THE PRECEDING CYCLE PLACES A FRESH WORKPIECE INTO REGISTRY WITH THE ADJUSTABLE TOOL DURIUNG THE NEXT FOLLOWING CYCLE.