摘要:
A CNC lathe provided with two opposed head stocks (2a, 2b), two turret type tool rests (3a, 3b), and a slanting base (1), the first head stock (2a) being fixed to the base (1), the second head stock (2b) being provided so that it can be moved and positioned in the direction of a main shaft only, two tool rests (3a, 3b) being arranged at the back of the head stocks (2a, 2b). A CNC lathe having the above-mentioned construction, in which each head stock is provided independently with a main shaft motor (21), a mechanically engageable and disengageable main shaft indexing driving unit (23), and main shaft side and indexing driving unit side encoders (27, 26), adapted to carry out a phase matching operation by rotating an indexing motor (40) on the basis of a phase difference detected by the encoders when the main shaft indexing driving unit (23) is connected to a main shaft (11) and when transfer of a work (16) is made between the main shafts (2a, 2b). A CNC lathe having the above-mentioned construction and provided with a synchronizing control unit (53) adapted to segment the output pulses from the encoders (27) on the main shafts on a minute time basis and correct a speed command in accordance with the magnitude thereof. According to the present invention, a CNC lathe having a first head stock of a high rigidity, capable of using a bar feeder of a conventional construction and having an improved efficiency in carrying out a work machining operation including an indexing machining operation using two main shafts an improved efficiency of machining a bar material which requires a cutting-off when the transfer of the work is made between the main shafts can be obtained.
摘要:
In a machine tool having plural coordinates systems and having controlled objects controlled on the basis of those coordinates systems, a coordinate system data memory (310) storing the dimension information corresponding to each coordinate system as a coordinate system data is provided, a coordinate relation memory (313) storing the coordinate position relation information by which the position relation among plural coordinates systems is specified is provided, in case that the controlled object corresponding to each coordinate system is driven, the coordinate system data is read from the coordinate system data memory (310) when the coordinate system data belonging to the coordinate system except the coordinate system in which the controlled object is driven is needed, the read coordinate system data is converted from the coordinate system to which the corresponding coordinate system data belongs into the other coordinate system to which the controlled object belongs on the basis of the coordinate position relation information in the coordinate relation memory (313), and the controlled object is controlled on the basis of the converted coordinate system data.
摘要:
The present invention provides a complex machining machine tool (1) having a single frame in which a chip collecting space (4) is provided at the center portion, a first and a second spindle stocks (5,6) on the frame (2) being relatively free to move in a Z axis direction and being located on respective sides of the chip collecting space 14) workpiece spindles (5b,6b) on said spindle stocks (5,6), free to rotate and arranged mutually facing each other, and tool rests (7,9). The tool rests (7,9) have respective turrets (7a,9a) which can assume various kinds of movement forms. Furthermore, complicated and various kinds of machinings can be performed in such a manner that the rotation control forms of the workpiece spindles (5b,6b) and the spindle stocks (5,6) are combined. The invention also provides a specific machining method.
摘要:
A CNC lathe provided with two opposed head stocks (2a, 2b), two turret type tool rests (3a, 3b), and a slanting base (1), the first head stock (2a) being fixed to the base (1), the second head stock (2b) being provided so that it can be moved and positioned in the direction of a main shaft only, two tool rests (3a, 3b) being arranged at the back of the head stocks (2a, 2b). A CNC lathe having the above-mentioned construction, in which each head stock is provided independently with a main shaft motor (21 a mechanically engageable and disengageable main shaft indexing driving unit (23), and main shaft side and indexing driving unit side encoders (27, 26), adapted to carry out a phase matching operation by rotating an indexing motor (40) on the basis of a phase difference detected by the encoders when the main shaft indexing driving unit (23) is connected to a main shaft (11) and when transfer of a work (16) is made between the main shafts (2a, 2b). A CNC lathe having the above-mentioned construction and provided with a synchronizing control unit (53) adapted to segment the output pulses from the encoders (27) on the main shafts on a minute time basis and correct a speed command in accordance with the magnitude thereof. According to the present invention, a CNC lathe having a first head stock of a high rigidity, capable of using a bar feeder of a conventional construction and having an improved efficiency in carrying out a work machining operation including an indexing machining operation using two main shafts an improved efficiency of machining a bar material which requires a cutting-off when the transfer of the work is made between the main shafts can be obtained.
摘要:
The present invention provides a complex machining machine tool (1) having a single frame in which a chip collecting space (4) is provided at the center portion, a first and a second spindle stocks (5,6) on the frame (2) being relatively free to move in a Z axis direction and being located on respective sides of the chip collecting space 14) workpiece spindles (5b,6b) on said spindle stocks (5,6), free to rotate and arranged mutually facing each other, and tool rests (7,9). The tool rests (7,9) have respective turrets (7a,9a) which can assume various kinds of movement forms. Furthermore, complicated and various kinds of machinings can be performed in such a manner that the rotation control forms of the workpiece spindles (5b,6b) and the spindle stocks (5,6) are combined. The invention also provides a specific machining method.
摘要:
This invention relates to a high-efficiency tool selection system in working with a numerical controlled lathe having a plurality of turrets (3, 4). Tool replacement on the turret (4) to be used next has been instructed to a working program and the tool replacement on the turret (4) to be next used is executed concurrently with working with the tool (3a) of the turret (3) that is now in use, and the turret (4) is located to the work start point. In this manner, an idle time between working steps where the working turrets are replaced can be eliminated.
摘要:
This invention relates to a CNC control system for controlling a plurality of paths by one numeric controller. It designates the execution sequence (6) of a PERT program (5) of each path (4) and the PERT program (5) is executed sequentially in accordance with the designated sequence. Accordingly, the content can be checked for each PERT program (5).
摘要:
In checking the interference of blade plates, the interpolation simulation is executed by interpolation simulators (103, 104) block by block successively based on first and second NC programs (101, 102). When the blade plates are interfered by one another, the interpolation simulation is stopped, and the two blade plates are moved backwardly up to the block that developed such interference. While the interplation simulation by one NC program is being stopped, the interpolation simulation by the other NC program is executed to move the other blade plate along a path in the interfering block. When no interference develops with the other blade plate being moved alone, the sequence numbers N and M of the first and second NC programs in the interfering block are stored in a memory region (301a), and then the interference is checked similarly. After the interference is checked, a wait instruction is inserted before the block of sequence number M of the NC program in which the interpolation simulation is stopped, and wait instruction is inserted afterthe block of sequence number N of the NC program which has executed the interpolation simulation, in order to correct the first and second NC programs (101 and 201).