摘要:
A tool changing device and a tool cleaning method capable of surely removing foreign matter such as swarf adhered to tapered portions and/or flange portions of tools, which serve as contact faces to be in contact with a spindle. There is arranged tool cleaning nozzles for spouting coolant on both sides of the spindle in the rotating position of a turret. The tool cleaning nozzle has a position and a posture such that the coolant spouted from the nozzle hits against the tapered portions and/or the flange portions of the tools held by the turret. The coolant is spouted from the tool cleaning nozzle with the rotation of the turret at the time of tool selection. Each time the turret rotates, the tapered portions and/or the flange portions of the tools held by the turret are cleaned by the coolant. Even if foreign matter, such as swarf, is adhered to the standby tools held by the turret, it is possible to surely remove the foreign matter, such as swarf, since the tools are cleaned during the rotation of the turret.
摘要:
A feed-shaft moving method and an apparatus capable of reducing non-cutting motion time. In a first section and a second section, an immediately preceding path is connected with a rapid traverse by a rapid traverse motion path having a curve continuous with the immediately preceding path. The movement is accelerated up to a rapid traverse speed while passing the curve. In the first section, the path is connected with the next path by a rapid traverse path having a curve continuous with the next movement. The movement is decelerated to the next moving speed while passing the curve. The rapid traverse motion of the feed shaft can be completed in less time, with unnecessary interruption and with no impact on the machine.
摘要:
A machining method in which a numerically controlled apparatus carries out a series of operations such as the determination of machining procedures, the selection of a tool, the preparation of a workpiece and inspection programs, machining operation, and inspection, required when a numerically controlled machine tool carries out a machining operation on the basis of input graphics and process information, using at least machine tool information, tool information, cutting condition information, material information, machining method symbol information, finishing symbol information, finishing allowance information, surface treatment information, information about thermal refining, and cost information, the method includes the steps of, while using electronic calculators including a numerical control unit, an FA system, and a personal computer, and a series of data processing units and machine tools, registering a variety of information files; inputting machining pattern data; processing a finished pattern; processing a machining pattern before a workpiece has finished undergoing another process; identifying the pattern; making a decision with regard to a machining process; and deciding whether or not material should be measured.
摘要:
An automatic tool changer for a machine tool comprises a first cam (C.sub.S) for swinging a turret (38) by cooperation with a first cam roller (21) mounted on a back face of the turret (38); a second cam (C.sub.L) for raising and lowering the turret (38) with respect to the spindle head in a direction along a central axis of the spindle of the machine tool; and a link (6, 8, 14, 16) having a second cam roller (22) cooperating with the second cam (C.sub.L), the link raising or lowering the turret (38) with respect to the spindle when the turret (38) is swung by the cooperation between the first cam (C.sub.S) and the first cam roller (21) in order to reduce the shock generated at the spindle and the turret (38) at the tool change.
摘要:
A numerical control device used in conjunction with a machine tool including a spindle head having a plurality of tapping tools is provided with a tapping pitch data group memory which stores the tapping pitch of each tool. Upon selection of a tool according to a machining program, a corresponding data group is retrieved from memory and from this data group an average tapping pitch is obtained. According to the average value thus obtained, a suitable feed rate is selected.
摘要:
This invention is a numerical control machine having information input/output units for working data and for control data, a single control unit including a CPU, arithmetic unit, and a plurality of memory areas which may include program areas and data areas, and a driving unit including a plurality of independently operable drive system, which may be divided by system control means into a plurality of arbitrary groups corresponding to a plurality of independently executable control programs so that each group may be independently controlled by a separate program, wherein the entire numerical control apparatus acts as a plurality of control processing systems so that each operable system may be independently controlled by an independent program or a group of systems may be controlled by the same program.
摘要:
A numerical control apparatus is disclosed by which tools are controlled concurrently with respect to their translations in the X-axis, the Y-axis, and the Z-axis in synchronism with or independently of each other. The numerical control apparatus comprises a memory region for storing the translation axis data; a memory region for storing the distance data; a memory region for storing synchronous-translation velocity data; a memory region for storing independent-translation velocity data; and a memory region for storing independent-translation axis data.
摘要:
A controller (10) for a machine tool (18) for tapping by a main shaft and a feed shaft, comprising an identifier unit (12) for identifying an index of the size of the tap, a temperature detector unit (19b) for detecting the temperature of a motor (19a) for the main shaft, an acceleration storage unit (21) for storing the acceleration of the main shaft corresponding to the index of the size of the tap, a rate storage unit (22) for storing the rate of varying the acceleration of the main shaft depending upon the temperature of the motor, and an acceleration calculation unit (16) for calculating a new acceleration of the main shaft by multiplying an acceleration determined from the index of the size of the tap and from the acceleration storage unit by a rate determined from the detected temperature and from the rate storage unit.
摘要:
An alarm device for a clutch that issues an alarm indicating a lifetime expiration of the clutch that selectively connects and disconnects an input shaft to and from an output shaft, includes: a slip heat release threshold setting unit 104 that establishes a threshold criteria as to a clutch damage or the clutch lifetime, in a form of a relation between a heat release generated in a clutch slip operation and a frequency of the heat release occurrences; and a slip heat release calculator 105 that calculates the heat release during the clutch operation, based on a hydraulic oil pressure in an actual clutch operation and a relative circumferential speed between input and output shafts, the alarm device 11 issues the alarm based on the calculation result through the slip heat release calculating means 105 and the slip heat release threshold setting means 104.
摘要:
An automatic tool changing method and an automatic tool changing device for a machine tool with a numerical controller capable of reducing the occurrence of impact due to tool exchange with a simple structure. A turret that rotates about a pivot shaft is provided on an arm and holds multiple tools. A swing cam CS that cooperates with a swing roller provided on the turret is provided on a spindle head. As the spindle head descends the turret rotates due to the action of the swing roller and the cam CS and exchanges tools. In order to lessen the impact that occurs at this time, the velocity of the spindle head is controlled. The ideal swing velocity pattern for the turret is obtained, and from this swing velocity pattern the swing position of the turret at each moment is obtained. From the swing roller and cam CS positions at this position the position of the spindle head 34 is obtained. From the acquired spindle head position the spindle head velocity pattern is obtained, and the spindle head is controlled using this velocity pattern. As a result, an ideal swing pattern can be achieved, and therefore no impact arises.