JP2018072926A - Control apparatus of metal working machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a program operation cannot be easily performed in an arbitrary extended device.SOLUTION: An extended device 9 is connected to a network communication device 50 of a control device 10 by a communication line. The control device 10 has an operational unit, and the operational unit includes storage means 10A, NC data generation means 10B, command data calculation means 10C, an input/output interface 10D including an input/output port, and communication control means 10E. The communication control means 10E sets communication conditions when a communication condition of the network communication device 50 is programmed in an NC program, causes the network communication device 50 to convert based on the communication conditions the command data to the predetermined transmission data and transmitting it to the extended device 9, and also causes the network communication device 50 to receive the reception data transmitted from the extended device 9 and to convert it into available data and to store the converted data in a storage device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control device for a metal working machine. In particular, the control device for a metal working machine of the present invention includes a numerical control device for controlling the metal working machine in accordance with instructions programmed in a numerical control program.

  A metal working machine is basically a machine tool. However, in the present invention, the metal processing machine includes a machine that generates a three-dimensional metal product by laminating metal materials, such as a metal additive manufacturing apparatus, a so-called metal 3D printer. Hereinafter, a control apparatus for a metal working machine will be described with reference to a metal additive manufacturing apparatus using a metal sintering additive manufacturing method that sinters metal material powder with laser light to generate a desired object.

  The industrial additive manufacturing apparatus is provided with a control device suitable for additive manufacturing. The control device controls the layered manufacturing apparatus according to a modeling process program created in advance. There are a plurality of formats of the modeling program, but in the control device according to the present invention, the modeling program is a numerical control program (NC program) used in a machine tool, and the control device is a numerical control device ( NC device). The NC device is exclusively a computer numerical control device (CNC device). In the present invention, the NC device is simply referred to as an NC device.

  The NC device sequentially decodes the NC program and generates NC data that is control data for operating the metal working machine. The NC device can generate unique NC data and output command data to the machine body, peripheral devices, and attached devices. However, the NC device can generate NC data for a peripheral device or an accessory device that is provided in the metal processing machine from the beginning of manufacture. NC data cannot be generated for additional equipment.

  Many of the expansion devices can receive command data from the control device by installing dedicated application software in the control device and using the input / output interface including the input / output port for the expansion device provided as a spare in the control device. Can work. However, since the NC device cannot generate NC data, it is not possible to operate the additional device in conjunction with the machine body and existing peripheral devices or attached devices by the NC program.

  In order to be able to operate the extension device with the NC program, it is necessary to change and update the control software including the control program for controlling the operation of the NC apparatus. Since the control software can be modified only by a program designer having specialized knowledge, it is difficult for an operator to connect an additional device so as to operate with the NC program.

  For example, as disclosed in Patent Document 1 or Patent Document 2, a technique for controlling an extension device using a macro program of an NC program is known. According to the invention of Patent Document 1 or Patent Document 2, NC data unique to the extension device can be generated without rewriting the control program. Patent Document 1 or Patent Document 2 is a technique related to an NC device of a machine tool, but can be incorporated into a control device including an NC device of a metal additive manufacturing apparatus that can be operated according to an NC program.

Japanese Patent Laid-Open No. 2006-18255 Japanese Patent Laying-Open No. 2005-131786

  The control device basically does not have an input / output interface that can be connected to an optional additional device. Therefore, the extension device is connected to the control device by a communication line such as a LAN cable to a general-purpose network communication device provided in the control device. In order to transmit and receive data between the NC device and the extension device through the network communication device, there are some “communication conditions” that must be set in advance according to the specific rules of the network communication device.

  For example, when the standard of the communication system of the network communication device to which the extension device is connected is Ethernet (registered trademark), the communication condition of the communication protocol is TCP / IP between the NC device and the network communication device of the communication partner. Specifically, the IP address of the communication partner, the port number, the number of transmission data, the start code, the completion code, or the number of reception data must be given in advance to the network communication device.

  Peripheral devices or accessory devices that are planned to be installed can be installed using a network communication device by recording communication conditions in the control software in advance. However, when connecting an optional expansion device or when it is necessary to change and reset the registered communication conditions, the data between the control device and the expansion device must be rewritten unless the control program is rewritten. Cannot be sent or received. Therefore, it is still necessary to change and update the control software when connecting additional equipment.

  In view of the above problems, an object of the present invention is to provide an improved control device for a metalworking machine that enables resetting by setting or changing communication conditions in a network communication device using an NC program. Several advantages of the control device of the present invention will be shown in detail in the description of the embodiments of the invention.

  In order to solve the above-mentioned problems, the control apparatus of the additive manufacturing apparatus of the present invention includes a NC device including an NC device provided with a network communication device (50) for transmitting and receiving data to and from the extension device (9). A machine control device (10) for sequentially decoding NC programs to generate NC data (10B); means for calculating command data from NC data (10C); 50) When the communication conditions of 50) are programmed, the communication conditions are set, the command data is converted into predetermined transmission data for the network communication device (50) based on the communication conditions, and transmitted to the additional device (9). In addition, the received data transmitted from the extension device (9) is received by the network communication device (50) and converted into usable data. And a means (10E) for storing data in the storage device, the comprising at calculating unit, the providing.

  Since the control device of the present invention is provided with an arithmetic unit having communication control means for setting communication conditions in a general-purpose network communication device based on the NC program, the communication conditions of the extension device of the communication partner are programmed into the NC program. Can be provided to the network communication device. Therefore, it is not necessary to rewrite the control program and change and update the control software when arbitrarily connecting additional devices. As a result, the work efficiency when providing additional devices is improved, and more types of peripheral devices or accessory devices can be arbitrarily added.

It is a block diagram which shows the structure of the control apparatus of a metal additive manufacturing apparatus as a control apparatus of this invention. It is sectional drawing which shows the structure of the metal additive manufacturing apparatus when it sees from the right side. It is sectional drawing which shows the structure of the metal additive manufacturing apparatus when it sees from the front. It is an example of NC program for performing communication control.

  FIG. 1 shows a basic configuration of a control device of a metal additive manufacturing apparatus as an embodiment of a control device including an NC device of a metal working machine of the present invention. In the metal additive manufacturing apparatus shown in FIG. 2 and FIG. 3, the surface on the side where the working opening is located in the chamber is the front surface or the front surface, the right surface is the right surface from the front surface, the left surface is the left surface, The surface opposite to the front surface is the rear surface or the back surface. Hereinafter, the control apparatus of the metal working machine of the present invention will be described with reference to an embodiment of the control apparatus of the metal additive manufacturing apparatus.

  As shown in FIGS. 2 and 3, the metal additive manufacturing apparatus includes at least a machine main body 1, an inert gas supply device 2, an inert gas discharge device 3, and a control device 10. The machine body 1 includes a modeling table 4, a recoater head 5, a laser irradiation device 6, a cutting device 7, and a material supply device 8. The machine body 1 includes a chamber 1A, a bellows 1B, a head 1C, a modeling base 1D, and a material holding wall 1E as structures.

  The chamber 1A of the machine body 1 is means for forming an environment in which the oxygen concentration is less than a predetermined value. The chamber 1A is provided with a bellows 1B that can be expanded and contracted in the left-right direction of the machine body 1, and the chamber 1A is divided into a front molding chamber and a rear drive chamber of the machine body 1. There is a slight gap through which the gas passes between the chamber 1A and the bellows 1B, and the gas can move between the modeling chamber and the driving chamber. A modeling area is accommodated in the modeling room. In the drive chamber, the drive device of the cutting device 7 is accommodated. An opening 11 that is opened by opening and closing a work door with a viewing window (not shown) is provided in the front surface of the chamber 1A.

  The bed 1C is a base for the machine body 1. The modeling base 1D is a work table that is horizontally fixed on the bed 1C. The modeling base 1D is provided with a rectangular penetrating part, and a modeling table 4 having an upper surface shape similar to the shape of the penetrating part is provided so as to pass through the penetrating part. A material holding wall 1 </ b> E is provided between the modeling base 1 </ b> D and the modeling table 4 so as to surround the modeling table 4. The material holding wall 1E forms a central space in the bed 1C. An annular seal or packing is provided on the periphery of the modeling table 4 to prevent the material powder from falling from between the material holding wall 1E and the modeling table 4 under the central space.

  An inert gas is always supplied to the modeling chamber and the drive chamber of the chamber 1A in order to prevent the metal material powder from deteriorating due to contact with air. As the inert gas concentration in the modeling chamber decreases, the inert gas in the drive chamber moves from the gap between the chamber 1A and the bellows 1B to the modeling chamber to suppress an increase in oxygen concentration in the modeling chamber. The inert gas refers to a gas that does not substantially react with the metal material powder. Examples of the inert gas suitable for practical use include nitrogen gas, argon gas, and helium gas. In the additive manufacturing apparatus of the embodiment, nitrogen gas is used as an inert gas.

  The inert gas supply device 2 supplies the inert gas to the chamber 1A and maintains the concentration of the inert gas in the modeling chamber at a predetermined value or higher, thereby maintaining the oxygen concentration below the predetermined value. Means. The inert gas supply device 2 includes a first gas supply source 2A and a second gas supply source 2B. Specifically, the gas supply source of the embodiment is a liquefied nitrogen gas cylinder including an accessory such as a valve. The inert gas supply device 2 is one of peripheral devices of the additive manufacturing apparatus. The inert gas which goes to the code | symbol F1 in the piping shown by FIG. 2 is supplied from the supply port F1 shown by FIG.

  The inert gas supply device 2 includes a fume diffusing device 2C. The fume diffusing device 2 </ b> C is a means for preventing soot containing fine metal particles from adhering to the window 12 due to fumes generated in a predetermined irradiation region. At this time, the predetermined irradiation region is a range in which each of the material powder layers is irradiated with laser light. The fume diffusing device 2C fills an inert gas supplied from the first gas supply source 2A in a disk-shaped housing having a through hole in the center and surrounding and covering the window 12. Thus, the fumes are pushed out of the casing by the pressure of the inert gas in the casing so that the fumes do not enter the casing.

  The inert gas discharge device 3 is means for discharging a gas containing a large amount of dirty inert gas to the outside of the chamber 1A. The inert gas discharge device 3 purifies and regenerates the dirty gas and returns it to the chamber 1A. The inert gas discharge device 3 includes a fume collector 3A that removes minute metal particles contained in the collected gas, and a fan 3B that sucks fumes from the discharge port V1. The gas discharged | emitted from the discharge port V1 in the piping shown by FIG. 3 goes to the code | symbol V1 shown by FIG. The fume collector 3 </ b> A of the inert gas discharge device 3 is one of the peripheral devices attached at the time of manufacturing the additive manufacturing apparatus that is provided at the time of manufacturing the metal additive manufacturing apparatus.

  The modeling table 4 is a means for forming a modeling area. The modeling area substantially corresponds to the entire upper surface of the modeling table 4. The modeling table 4 is a moving body that reciprocally moves in a vertical one-axis direction (W-axis) in a central space surrounded by the material holding wall 1E. The modeling table 4 is driven by a W-axis drive device 4W installed in the inner space of the bed 1C below the central space. A modeling plate 4A is attached and fixed on the modeling table 4, and a desired modeled object is generated on the modeling plate 4A. In the inner space of the bed 1C, a bucket 13 for storing and collecting surplus material powder discharged from the left and right ends of the modeling base 1D or the central space is installed.

  As shown in FIGS. 1 to 3, the W-axis drive mechanism 4W of the modeling table 4 transmits the driving force of the servo motor 4M to the slider 4H by the ball screw mechanism 4T, and the modeling table provided on the slider 4H. 4 is moved. The servo motor 4M is operated by a drive circuit 4B that outputs electric power corresponding to a predetermined control amount output from the motor control device 4C according to the command data of the control device 10.

  The recoater head 5 is means for spreading the material powder with a uniform thickness on at least the entire upper surface of the modeling table 4. The recoater head 5 reciprocates on the upper side of the modeling base 1D including the upper surface of the modeling table 4 in the horizontal one-axis direction (U-axis) in the left-right direction of the machine body 1 in the modeling chamber of the chamber 1A. The recoater head 5 temporarily stores the material powder supplied from the material supply device 8 shown in FIG. 3 in the material storage box 5A. While moving in the horizontal direction, the recoater head 5 freely drops a predetermined amount of the material powder from the material storage box 5A, and at the same time leveles the material powder to a uniform thickness by the blade 5B.

  The laser irradiation device 6 is provided so that laser light can be scanned in a two-dimensional direction at least within the range of the modeling region. As shown in FIG. 1, the laser irradiation device 6 in the additive manufacturing apparatus of the embodiment includes a laser light source 6 </ b> A and a galvano scanner 6 </ b> B. The type of laser light is not limited as long as it is possible to sinter a predetermined kind of metal material powder. In the metal additive manufacturing apparatus of the embodiment, a fiber laser is used. The window 12 is made of a material, for example, quartz glass, corresponding to the type of laser light that passes therethrough, that does not attenuate the energy as much as possible and does not distort the traveling direction.

  The cutting device 7 is means for finishing the surface of the sintered body being modeled or the modeled object after generation with a cutting tool. The cutting device 7 relatively moves a cutting tool attached to the tip of a spindle (not shown) by a driving mechanism in an arbitrary three-dimensional direction. The drive mechanism includes a moving body that reciprocates in the horizontal one-axis direction (X-axis) that is the left-right direction of the machine body, and another horizontal one-axis direction (Y-axis) that is the front-rear direction of the machine body 1 perpendicular to the X-axis. The cutting tool is controlled by synchronously controlling a moving body that reciprocates in the vertical direction and a moving body that reciprocates in the vertical one-axis direction (Z-axis) that is the vertical direction of the machine body 1 perpendicular to the X axis and the Y axis. It can be moved in three dimensions.

  The driving mechanism of the cutting device 7 includes an X-axis driving mechanism 7X including an X-axis moving body, a servo motor, and a guide device, a Y-axis driving mechanism 7Y including a Y-axis moving body, a servo motor, and a guide device, It comprises a Z-axis drive mechanism 7Z including a Z-axis moving body, a servo motor, and a guide device. In the drive mechanism of the cutting device 7 in the additive manufacturing apparatus of the embodiment, the X-axis servo motor and the Y-axis servo motor are linear motors.

  As shown in FIG. 2, the drive mechanism of the cutting apparatus is such that a Y-axis drive mechanism 7Y is stacked on the X-axis drive mechanism 7X, and a Z-axis drive mechanism 7Z is provided at the front end of the moving body of the Y-axis drive mechanism 7Y. It has been. As comprehensively shown in FIG. 1, each servo motor M in each drive mechanism is operated by a current output from a drive circuit 7B provided therein. Each drive circuit 7B outputs a current corresponding to a predetermined control amount according to the command data of the control device 10 input from the corresponding motor control device 7C.

  The material supply device 8 is means for supplying material powder to the recoater head 5. The material supply device 8 is provided above one end of the modeling base 1 </ b> D in the left-right direction of the machine body 1. The material supply device 8 lowers the intermediate duct 8A when the material powder stored in the recoater head 5 is less than a predetermined amount while the recoater head 5 is waiting at one end of the machine body 1. Then, the shutter is opened, and a predetermined amount of the material powder supplied from the bottle 8B to the hopper 8C is freely dropped to replenish the material powder to the recoater head 5.

  The extension device 9 is a peripheral device or an accessory device that is arbitrarily attached after the metal additive manufacturing apparatus is manufactured. As illustrated in FIG. 1, the extension device 9 includes an extension device control device 9C. The extension device 9 can send and receive to / from the control device 10 by connecting the extension device control device 9C to the network communication device 50 provided in the control device 10 of the metal additive manufacturing apparatus.

  The extension device 9 is, for example, a measuring device or a PLC device such as a pilot lamp. More specifically, the extension device 9 in the metal additive manufacturing apparatus of the embodiment is a measuring apparatus that scans the contour shape of a three-dimensional structure and generates an image, and measures the shape accuracy of the structure from the image. . In the measuring device, means for scanning the contour shape of the modeled object is attached to a moving body (processing head) of the Z-axis moving mechanism 7Z of the cutting device 7 in a position detecting device that measures the irradiation position of the laser beam (not shown). A CCD camera can be used.

  The control device 10 includes an NC device. The control device 10 includes an arithmetic unit, an input device 20, a display device 30, a storage device 40, and a network communication device 50. The control device 10 directly indicates the arithmetic unit itself, but as shown in FIG. 1, the control device 10 includes an input device 20, a display device 30, a storage device 40, and a network communication device 50. There is.

  The control object of the control device 10 that is a machine main body, peripheral device, or accessory device that can be controlled by the NC device of the control device 10 is specifically, the modeling table 4 of the machine main body 1, the recoater Head 5, laser irradiation device 6, cutting device 7 including tool changer (not shown), material supply device 8, inert gas supply device 2 including peripheral gas supply source and electromagnetic valve, fume collector 3A and fan An inert gas discharge device 3 including 3B and a solenoid valve, and an additional device 9 which is an accessory device. However, in FIG. 1, some control objects are extracted and selectively shown, and illustration and description of other control objects are omitted.

  The arithmetic unit includes a member such as a data transfer line including one or more memories, a bus, a slot, or a battery that is required for the arithmetic device main body (central processing unit) to execute a control program for operating the control device 10. Comprising. The arithmetic unit includes at least a storage unit 10A, an NC data generation unit 10B, a command data calculation unit 10C, an input / output interface 10D including a data input / output port, and a communication control unit 10E.

  The input device 20 includes a plurality of input devices that allow an operator to directly handle data. Specifically, the input device 20 is a storage medium that can be carried, such as operation buttons or switches, a touch panel, and a compact disc player or a USB port. A storage medium driving device for operating the storage medium. The display device 30 is a liquid crystal display, and a touch panel of the input device 20 is disposed on a liquid crystal panel. The storage device 40 is a secondary storage device having a storage medium having a relatively large storage capacity such as a hard disk. The network communication device 50 is a general-purpose network interface controller (LAN adapter).

  The input device 20 is a means for giving an operation unit a command and information for an operator to operate the metal additive manufacturing apparatus including the control target through the control device 10. The input device 20 is means for taking out a desired NC program from the storage medium and giving it to the arithmetic unit. When the input device 20 is a storage medium drive device, the input device 20 also serves as a data output device (storage device).

  The storage means 10A temporarily stores it in the memory of the arithmetic unit of the NC program given from the input device 20. The storage unit 10A stores the NC program in the storage device 40 in response to the operator's request. In addition, the storage unit 10A temporarily stores data given from the control target in the memory of the arithmetic unit, and also stores it in the storage device 40 in response to an operator request.

  The NC data generation means 10B reads the NC codes of the NC programs stored in the memory of the arithmetic unit by the storage means 10A in the programmed order and sequentially decodes them to generate NC data for each program block. The NC data generation means 10B temporarily stores the generated NC data in the memory of the arithmetic unit, selects a command data calculation means 10C for a specific control object from a plurality of command data calculation means 10C, and selects the selected command NC data is output to the data calculation means 10C.

  The command data calculation means 10C calculates the command data by inputting the NC data generated by the NC data generation means 10B. The command data calculation means 10 </ b> C is provided for each control target of the control device 10. Specifically, the control device 10 according to the embodiment includes a modeling table 4 of the machine body 1, a laser irradiation device 6, a cutting device 7, a fume collector 3 </ b> A that is an existing peripheral device, and an expansion that is a newly connected accessory device. Each of the devices 9 has command data calculation means 10C.

  The plurality of command data calculation means 10 </ b> C calculate and output command data suitable for each control object connected to the control device 10. For example, the command data calculation means 10C of the modeling table 4 calculates a movement command value and outputs command data. The command data calculation means 10C of the laser irradiation device 6 calculates the laser intensity, spot diameter, scanning speed, and scanning locus, and outputs the command data. Further, for example, the command data calculation means 10C of the fume collector 3A outputs command data such as ON / OFF of the load electrode automatic cleaning operation. Further, the command data calculation means 10C of the cutting device 7 calculates a movement command value and distributes and outputs it to each of the X axis, Y axis, and Z axis.

  Each command data calculation means 10C includes a motor control device 4C for the modeling table 4, a laser control device 6C for the laser irradiation device 6, a motor control device 7C for the driving mechanism of the cutting device 7, and a fume through a dedicated input / output interface 10D. Command data is output to the fume collector controller 3C of the collector 3A. Further, the command data calculation means 10C of the extension device 9 outputs the command data for the extension device 9 to the communication control means 10E.

  When the communication conditions of the additional device 9 to be given to the network communication device 50 are programmed in the NC program macro program, the communication control means 10E sends the above communication sent from the NC data generation means 10B through the command data calculation means 10C. The condition is set and registered in the network communication device 50. The network communication device 50 in the control device 10 according to the embodiment has a communication system standard of Ethernet (registered trademark), and the communication conditions specifically include an IP address, a port number, the number of transmission data, or the start of transmission / reception. Code and completion code.

  When the communication control means 10E inputs the command data for the expansion device 9 from the command data calculation means 10C after setting the communication conditions for the expansion device 9, the network control device 10E The command data input to 50 is converted into predetermined transmission data and transmitted to the expansion device controller 9C of the expansion device 9.

  The communication control means 10E, when feedback data (received data) such as detection data, measurement data, or alarm data is transmitted from the extension device 9 through the network communication device 50, is set with predetermined communication conditions. Based on the above, the received data is received by the network communication device 50 and converted into usable data.

  The communication control means 10E performs a transfer process that is predetermined according to the type of converted data. For example, when the extension device 9 is a three-dimensional measuring device and the network communication device 50 receives measurement data, the communication control unit 10E sends the received data to the network communication unit 50 in a predetermined format. After the measurement data is converted, the measurement data is stored in the memory or the storage device 40 by storing the measurement data in the macro variable of the NC program macro program in the storage unit 10A.

  Next, among the operations of the control device 10, operations relating to data transfer between the extension device 9 and the control device 10 will be described based on an example of the NC program (macro program) shown in FIG. However, in FIG. 4, some program blocks of the NC program are omitted. Further, in the actual NC program, a number is described in the part indicated by “X”. The characters shown in parentheses in the NC program indicate the meaning of the corresponding program block, not a part of the NC program.

  When the expansion device 9 is newly connected to the control device 10, the input / output port of the network communication device 50 and the input power port of the communication device of the expansion device control device 9C are connected by a data communication line (LAN cable). In the macro program of the NC program, communication conditions such as the IP address of the extension device 9 of the communication partner are programmed in advance from the top of the macro program.

  When the NC data generating means 10B decodes the macro program related to the setting of communication conditions and generates NC data, the NC data generating means 10B outputs the generated NC data to the command data calculating means 10C corresponding to the extension device 9. To do. The communication control unit 10E sets and registers the communication condition of the extension device 9 in the network communication device 50 according to the input command data.

  The communication control means 50 then outputs a start command in accordance with the command data output from the command data calculation means 10C and causes the network communication device 50 to start communication so that the extension device control device 9C of the extension device 9 receives the command data. To send. As a result, the control device 10 operates the extension device 9 as programmed in the NC program, or requests the extension device 9 for feedback data such as measurement data. When the transmission process is completed, the network communication device 50 performs a reception process.

  The communication control means 10E causes the network communication device 50 to receive feedback data transmitted from the extension device 9 at a predetermined timing, and the data that can be handled by the control device 10, usually the original data before transmission. Convert to data. For example, when the extension device 9 outputs the measurement data in CSV (Comma-Separated Values), the communication data is converted into original CSV format data. The communication control unit 10E stores the received data in the memory or the storage device 40 by a method of storing the received data in the macro variable set for the received data of the NC program stored in the storage device 40.

  Received data acquired from the extension device 9 such as measurement data stored in the storage device 40 can be taken out by the arithmetic unit. In the control device 10 according to the embodiment, the NC data generation unit 10B displays the data received from the extension device 9 on the display device 30 in response to the operator's request between the operations for generating the NC data. Can be.

  As described above, the control device of the metal additive manufacturing apparatus of the embodiment can set the communication conditions programmed in the NC program in the general-purpose network communication device. Several examples of the control apparatus for the metal working machine of the present invention have already been shown, but the present invention is not limited to the control apparatus of the embodiment specifically shown in the drawings, and departs from the technical idea of the present invention. It can be deformed as long as it is not.

  The present invention can be used for metal processing machines. The present invention makes it easy to arbitrarily add peripheral devices or accessory devices to be connected by a general-purpose network communication device provided in a control device including an NC device in a metal processing machine. The present invention contributes to the development of metal working machines.

DESCRIPTION OF SYMBOLS 1 Machine main body 2 Inert gas supply device 3 Inert gas discharge device 3A Fume collector 3C Fume collector control device 4 Modeling table 4B Drive device (motor driver)
4C Motor controller 4M Servo motor 4W W-axis drive mechanism 5 Recoater head 6 Laser irradiation device 6A Laser light source 6B Galvano scanner 7 Cutting device 7X X-axis drive mechanism 7Y Y-axis drive mechanism 7Z Z-axis drive mechanism 8 Material supply device 9 Expansion Device 9C Additional device control device 10 Control device 10A Storage means 10B NC data generation means 10C Command data calculation means 10D Input / output interface 10E Communication control means 20 Input device 30 Display device 40 Storage device 50 Network communication device

Claims (1)

  A control device for a metalworking machine including an NC device provided with a network communication device for transmitting / receiving data to / from an additional device, the means for sequentially decoding NC programs and generating NC data, and the NC Means for calculating command data from data, and setting the communication condition when the communication condition of the network communication device is programmed in the NC program, and the command to the network communication device based on the communication condition Data converted into predetermined transmission data and transmitted to the extension device, and received data transmitted from the extension device is received by the network communication device and converted into usable data and converted. A control device for a metal working machine, comprising: an arithmetic unit including:

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