KR20210101809A - Tool change control device of machine and method thereof - Google Patents

Abstract

The present invention relates to a tool change control apparatus for a machine tool having a graphic-based user interface screen and a control method thereof. According to the present invention, it is possible to improve the user's convenience as a user intuitively checks the status of the magazine and automatic tool changer and operates it, by displaying the current operation status of the magazine or the automatic tool changer in real-time synchronized with the user interface screen only with the tool number or port number according to the mode selection of a mode selection unit during tool change, and to maximize the stability and reliability of the machine tool by preventing the user's malfunction or incorrect input.

Description

Tool change control device of machine and method thereof

The present invention relates to a tool change control apparatus for a machine tool and a control method thereof, and more particularly, by displaying the current operating state of a magazine or an automatic tool changing apparatus in real-time synchronized state on a user interface screen at the time of tool change, It relates to a tool change control apparatus for a machine tool having a graphic-based user interface screen that allows a user to intuitively check and operate equipment, and a method for controlling the same.

In general, a machine tool refers to a machine used for the purpose of processing a metal/non-metal workpiece into a desired shape and size using an appropriate tool by various cutting or non-cutting methods.

Various types of machine tools, including turning centers, vertical/horizontal machining centers, door machining centers, Swiss turns, electric discharge machines, horizontal NC boring machines, and CNC lathes, are widely used in various industrial sites for their respective purposes.

In general, various types of machine tools currently used have an operation panel to which numerical control (NC) or computerized numerical control (CNC) technology is applied. Such an operation panel is provided with various function switches or buttons and a monitor.

In addition, the machine tool includes a table on which a workpiece material is seated and transferred for processing the workpiece, a pallet for preparing the workpiece before processing, a spindle that rotates when a tool or workpiece is combined, a tailstock for supporting the workpiece, etc. during processing, a vibration isolator etc. are provided.

In general, in a machine tool, a table, a tool rest, a main shaft, a tailstock, a vibration isolator, etc. are provided with a conveying unit which conveys along a conveying axis in order to perform various processing.

In addition, in general, a machine tool uses a plurality of tools for various processing, and a tool magazine or a turret is used in the form of a tool storage place for storing and storing a plurality of tools. The Tool Magazine (TM) accommodates a number of tools and automatically exchanges the machining tool and exchange tool mounted on the spindle through numerical control and an automatic tool changer to be described later.

In addition, in general, a machine tool is provided with an automatic tool changer (ATC, Automatic Tool Changer) for withdrawing a specific tool from the tool magazine or receiving it again according to the command of the numerical control unit in order to improve the productivity of the machine tool.

In addition, in general, a machine tool is provided with an automatic pallet changer (APC, Automatic Palette Changer) in order to minimize the non-working time. The automatic pallet changer (APC) automatically exchanges pallets between the workpiece machining area and the workpiece installation area. Pallets may be loaded with workpieces.

The conventional tool exchange control device and its control method of the machine tool are far from the location where the machine tool magazine operation panel and the tool magazine are installed, and the information mounted in the tool magazine is displayed only as text. In the case of a novice operator who lacks specialized knowledge, it was difficult to operate, resulting in inconvenience, and there was a problem in that the tool or the workpiece was damaged due to the malfunction of the equipment.

In addition, the conventional tool exchange control apparatus and control method of a machine tool increase the maintenance cost of the machine tool as equipment or workpiece is damaged due to tool malfunction, etc., and resources are wasted as the damaged tool or workpiece is disposed of. there was.

Moreover, as shown in FIG. 1, the tool change control device of the conventional machine tool controls only the forward rotation, reverse rotation, and emergency stop operation of the magazine, and it is complicated because it is not possible to know the contents of the processing tool information and the exchange tool information, There was a problem in that productivity was reduced as the non-working time increased.

In order to solve this problem, Korean Patent Registration No. 10-1789020 is an invention that enables real-time tool magazine operation of a machine tool by linking a touch-type computer with the operation panel of a machine tool to monitor tool replacement information and equipment status. has been developed.

However, such a conventional tool change control device and its control method of a machine tool cannot synchronize and display the status information of the magazine and the automatic tool change device in real time depending on the operating state of the machine tool, so that the magazine and the automatic tool change device can be operated normally. There is a problem in that it is not possible to intuitively know whether a tool is operated and a tool is exchanged, which causes inconvenience to users and lowers the stability and reliability of the machine tool.

Accordingly, there is an urgent need to develop a technology that can intuitively recognize the operation status of the magazine and the automatic tool changer for tool exchange by synchronizing them in real time and displaying them graphically.

Korean Patent Laid-Open Publication No. 10-2011-0019813 Korean Patent Laid-Open Publication No. 10-2010-0135513 Korean Patent Registration Publication No. 10-1789020

The present invention is to solve the above problems, and an object of the present invention is to display the current operating state of the magazine or automatic tool changer using only the tool number or port number according to the mode selection of the mode selection unit during tool exchange on the user interface screen. It is displayed in real-time synchronized state on the screen to improve the user's convenience as the user intuitively checks and operates the magazine and automatic tool changer, and prevents the user's erroneous operation or erroneous input to improve the stability and reliability of the machine tool. It is to provide a tool change control apparatus for a machine tool having a graphic-based user interface screen that can be maximized, and a control method thereof.

In addition, another object of the present invention is to reduce the maintenance cost of the machine tool by preventing damage to tools and other equipment by displaying tool status information on the screen of the user interface according to mode selection, and machining precision due to tool damage or breakage It reduces resource wastage by preventing the reduction in advance, and it is possible to check or input tool offset information without going through the numerical control unit on the screen of another user interface, thereby improving the productivity of the machine tool due to the reduction of non-working time and causing inconvenience to the operator. It is to provide a tool change control apparatus for a machine tool having a graphic-based user interface that can reduce

In order to achieve the object of the present invention, the tool change control apparatus of the machine tool according to the present invention is a numerical control unit; PLC for driving a magazine or automatic tool changer for tool change; a user interface unit having a user interface screen and inputting or outputting an operation command to perform tool change according to the operation of the magazine and the automatic tool changer; and controlling the command signal to synchronize and display the operation state of the magazine or the automatic tool changer and tool change information on the user interface screen in real time through communication with the numerical control unit, the PLC, or the user interface unit. It may include; a tool exchange control unit.

In addition, in a preferred embodiment of the tool change control apparatus of the machine tool according to the present invention, the user interface unit of the tool change control apparatus of the machine tool input/output unit for inputting or outputting information for tool exchange; and a graphic data storage unit for storing a graphic guidance program for converting the current state of the magazine or the automatic tool changing device into a graphic by synchronizing in real time according to a command signal received from the tool change control unit.

In addition, in a preferred embodiment of the tool change control apparatus of the machine tool according to the present invention, the tool exchange control unit of the tool change control apparatus of the machine tool is a tool number, port number, tool state information, tool offset information for tool exchange. , a basic data storage unit for storing the reference position, the standby position, and the tool replacement information of the replacement position; a receiver configured to receive a signal output from the numerical control unit, the PLC, and the input/output unit; When a tool number or port number for tool exchange is input through the input/output unit, the rotation direction and amount of rotation of the magazine are calculated by comparing the signal received from the receiving unit and the exchange position stored in the basic data storage unit with the reference position. calculation unit; a determination unit for determining a clamp or unclamp signal by the PLC after the tool of the tool number or port number input through the input/output unit is moved to an exchange position as a result of the calculation of the calculation unit; and when the magazine or the automatic tool changer is operated by the numerical control unit or the PLC according to the result of the calculation unit or the determination unit, it is displayed on the user interface screen in conjunction with the magazine or the automatic tool changer. It may include; a command unit for outputting a command signal.

In addition, in a preferred embodiment of the tool change control apparatus of the machine tool according to the present invention, the user interface screen of the tool change control apparatus of the machine tool is a function selection unit; and a mode selection unit capable of selecting magazine rotation, tool reset, tool offset, and alarm reset modes for tool exchange, and according to the operation of the mode selection unit, any one of the first screen, the second screen, or the third screen One can be displayed on the user interface screen.

In addition, in a preferred embodiment of the tool change control device of the machine tool according to the present invention, the first screen of the tool change control device of the machine tool is the magazine or the automatic device when the magazine rotation mode is selected in the mode selection unit. Displays the real-time operation status of the tool changer and the tool number or port number of the exchange tool and the tool number or port number of the machining tool, and the first screen communicates with the numerical control unit, the PLC, or the user interface unit. a magazine status display area for displaying status information of the magazine in operation; an automatic tool changer status display area for displaying status information of the automatic tool changer in operation through communication with the numerical control unit, the PLC, or the user interface unit; a search selection unit for searching the corresponding tool through the tool number or port number input through the input/output unit; an automatic selection unit for determining whether to automatically or manually search for a tool searched through the search selection unit; and a rotation direction selection unit for selecting a rotation direction of the magazine in order to search for a found tool when manually selected by the automatic selection unit.

In addition, in a preferred embodiment of the tool change control apparatus of the machine tool according to the present invention, the second screen of the tool change control apparatus of the machine tool is the tool mounted in the magazine when the tool list is selected in the mode selection unit a tool number display area for displaying a number, a port number, and tool status information, and the second screen displays tool number information of a current tool mounted in the magazine; a port number display area for displaying port number information of the current tool mounted on the magazine; a tool status display area for displaying tool status information of the current tool mounted in the magazine; a port number range selection unit for selecting a port number range displayed on the second screen; and an initialization selection unit capable of initializing the tool information displayed on the second screen.

In addition, in a preferred embodiment of the tool change control apparatus for a machine tool according to the present invention, the third screen of the tool change control apparatus of the machine tool is the tool offset of the tool input when the tool offset is selected in the mode selection unit. a tool offset information display area for displaying a state in which information can be checked or input, and wherein the third screen displays tool offset information of a current tool mounted in the magazine; and a tool offset information selection unit capable of confirming or inputting tool offset information of a current tool mounted in the magazine.

In order to achieve another object of the present invention, the tool change control method of a machine tool according to the present invention stores data for displaying the operation state of a magazine or automatic tool changer and tool change information in real time on a user interface screen in synchronization to do; receiving tool information for tool exchange; receiving the transmitted tool information; calculating the rotation direction and amount of the magazine by comparing the received tool information with pre-stored data; outputting a command signal to be displayed on a user interface screen in conjunction with the magazine when the magazine is operated by a numerical control unit, a PLC, or a user interface unit according to the calculation result; and receiving the output command signal and synchronizing the user interface graphic with the user interface screen through a pre-stored user graphic guidance program to display the magazine status.

In addition, in a preferred embodiment of the tool exchange control method of the machine tool according to the present invention, the tool change control method of the machine tool displays the magazine state after the magazine state according to the calculation result of the rotation direction and the rotation amount of the magazine determining a clamp or unclamp signal by communication with the numerical control unit, the PLC, or the user interface unit after this operation; When the automatic tool changer is operated by the numerical control unit, the PLC, or the user interface unit according to the determination result, a command signal is re-outputted to be displayed on the user interface screen in conjunction with the automatic tool changer step; and receiving the re-output command signal and synchronizing the user interface graphic with the user interface screen through a pre-stored user graphic guidance program to display the state of the automatic tool changer.

The tool change control apparatus for a machine tool according to the present invention and its control method according to the mode selection of the mode selection unit at the time of tool exchange, display the current operating state of the magazine or automatic tool changer on the user interface screen in real time only with the tool number or port number. displayed in a synchronized state to improve the user's convenience as the user intuitively checks and operates the magazine and automatic tool changer status. There is a preventable effect.

In addition, the tool change control device for a machine tool and its control method according to the present invention display the current operating state of the magazine or automatic tool change device only with the tool number or port number according to the mode selection of the mode selection unit at the time of tool exchange on the user interface screen It is displayed in a synchronized state in real time, so that the user can intuitively check the status of the magazine and automatic tool changer and operate it. can have an effect.

Furthermore, the tool change control apparatus and the control method of the machine tool according to the present invention display tool status information on the screen of the user interface according to the mode selection to prevent damage to the tool and other equipment, thereby reducing the maintenance cost of the machine tool and , it has the effect of reducing the waste of resources by preventing the decrease in machining precision due to damage or breakage of the tool in advance.

In addition, the tool change control apparatus and the control method of the machine tool according to the present invention can check or input tool offset information without going through the numerical control unit on the screen of the user interface according to the mode selection, so that the machine tool according to the reduction of non-working time It has the effect of improving productivity and reducing operator discomfort.

1 shows a conceptual diagram of a tool change control device of a conventional machine tool.
Figure 2 shows a block diagram of the configuration of the tool change control device of the machine tool according to the present invention.
3 is a block diagram showing the configuration of the user interface unit and the tool change control unit of the tool change control device of the machine tool according to the present invention.
Figure 4 shows an exemplary view of a first screen that captures the user interface screen of the user interface unit of the tool change control device of the machine tool according to the present invention.
5 shows an exemplary view of a second screen capturing the user interface screen of the user interface unit of the tool change control device of the machine tool according to the present invention.
6 shows an exemplary view of a third screen in which the user interface screen of the user interface unit of the tool change control device of the machine tool according to the present invention is captured.
7 shows a flowchart of a tool exchange control method of a machine tool according to an embodiment of the present invention.

Hereinafter, it will be described in detail with reference to the drawings of a tool change control apparatus and a control method thereof for a machine tool according to an embodiment of the present invention. The embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers refer to like elements throughout.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of description.

The terminology used herein is for the purpose of describing the embodiments, and thus is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprise” and/or “comprising” refers to the presence of one or more other components, steps, operations, and/or elements mentioned. or addition is not excluded.

Figure 2 shows a block diagram of the configuration of the tool change control device of the machine tool according to the present invention, Figure 3 is a block for the user interface unit and the tool exchange control unit of the tool change control device of the machine tool according to the present invention shows the figure. Figure 4 shows an exemplary view of a first screen capturing the user interface screen of the user interface unit of the tool change control device of the machine tool according to the present invention, Figure 5 is the user interface of the tool change control device of the machine tool according to the present invention Shows an exemplary view of a second screen in which the user interface screen of the sub is captured, and FIG. 6 shows an exemplary view of a third screen in which the user interface screen of the user interface unit of the tool change control device of the machine tool according to the present invention is captured. 7 is a flowchart of a tool exchange control method of a machine tool according to an embodiment of the present invention.

A tool change control apparatus 1 of a machine tool according to an embodiment of the present invention will be described with reference to FIGS. 2 to 6 . 2 to 3, the tool change control device 1 of the machine tool according to the embodiment of the present invention is a numerical control unit 300, PLC 400, user interface unit 500, and a tool change control unit. (600).

The numerical control unit 300 includes a numerical control (NC) or a computerized numerical control (CNC), and various numerical control programs are built-in. That is, the numerical control unit 300 includes a servo motor driving program, a tool operation program, and the like, and the corresponding program is automatically loaded and operated according to the driving of the numerical control unit. In addition, the numerical control unit 300 communicates with the PLC 400 , the user interface unit 500 , the tool change control unit 600 , the magazine 100 , and the automatic tool change device 200 by a predetermined protocol. .

In addition, the numerical control unit 300 communicates with a servo motor used for driving the magazine 100 or the automatic tool changer 200 and receives feedback information from the servo motor.

In addition, although not shown in the drawings, according to a preferred embodiment of the present invention, the numerical control unit 300 includes a main operation unit, and this main operation unit includes a screen display program and a data input program according to the screen display selection. , displays the software switch on the display screen according to the output of the screen display program, recognizes the ON/OFF of the software switch, and gives an input/output command for machine operation.

In addition, although not necessarily limited thereto, the main operation unit includes a monitor that is installed on the housing, case, or one side of the machine tool to display various function switches or buttons and various information.

PLC (Programmable Logic Controller, 400) communicates by a predetermined protocol with the numerical control unit 300, the user interface unit 500, the tool change control unit 600, the magazine 100, or the automatic tool changer 200 and performs a function of executing a control command through such communication. That is, the PLC 400 drives the magazine or the automatic tool changer for tool exchange according to the numerical control program of the numerical control unit 100 , the user interface unit 500 , or the tool change controller 600 .

In addition, after receiving a control command from the numerical control unit 100 , the user interface unit 500 , or the tool exchange control unit 600 and performing it, the PLC 400 transmits it to the numerical control unit 100 or the user interface unit 500 . may be output to the user interface screen 510 .

The user interface unit 500 (Human-Machine Interface) is provided with a user interface screen (510, Graphic User Interface, GUI), and inputs or outputs an operation command to perform tool change according to the operation of the magazine and the automatic tool changer. . That is, the user interface unit 500 performs communication by a predetermined protocol with the numerical control unit 300 , the PLC 400 , the tool change control unit 600 , the magazine 100 , or the automatic tool change device 200 , and , through this communication, graphically displays the screen for various operation settings of the magazine or automatic tool changer, such as tool change or tool offset in the magazine or automatic tool changer, and the real-time operation status, receives an operation command from the user, and Outputs information in various formats. In addition, the outputted various information is transmitted to the numerical control unit, PLC, tool change control unit, magazine, and automatic tool change device.

The user interface screen 510 is a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display ( flexible display), a three-dimensional display (3D display), and an electronic ink display (e-ink display) may include at least one.

The tool exchange control unit 600 includes the operation state and tool exchange information of the magazine 100 or automatic tool changer 200 operating through communication with the numerical control unit 300 , the PLC 400 , or the user interface unit 500 . The command signal is controlled to be displayed in synchronization with the user interface screen 510 in real time.

The tool change control unit 600 is ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays), controllers (controllers) , micro-controllers, microprocessors, and other electrical units for performing other functions.

As such, the tool change control device of the machine tool according to the present invention synchronizes the current operating state of the magazine or the automatic tool changer device to the user interface screen in real time only with the tool number or port number according to the mode selection of the mode selection unit during tool exchange. The user can intuitively check and operate the magazine and automatic tool changer status by displaying in the displayed state, improving the user's convenience. can be prevented

In addition, the tool change control device of the machine tool according to the present invention synchronizes the current operating state of the magazine or the automatic tool change device to the user interface screen in real time only with the tool number or port number according to the mode selection of the mode selection unit at the time of tool exchange. As the user intuitively checks and operates the magazine and automatic tool changer status by displaying in the displayed state, it is possible to maximize the stability and reliability of the machine tool and improve the machining precision by preventing the user's malfunction or erroneous input.

As shown in FIG. 3 , the user interface unit 500 of the tool change control apparatus of the machine tool according to the present invention includes an input/output unit 520 and a graphic data storage unit 530 .

The input/output unit 520 inputs or outputs tool exchange information for tool exchange. Specifically, the input/output unit 520 inputs or outputs information about tool number, port number, tool state information, reference position/standby position/exchange position for tool exchange, tool offset information, etc., which are tool exchange information for tool exchange, and , receives an operation command from the user for operation of the magazine or automatic tool changer, and outputs the received operation command or tool change information.

In addition, although not necessarily limited thereto, the user interface screen 510 receives tool replacement information or a user's operation command and displays the received operation command or tool replacement information with a numerical control unit, PLC, tool replacement control unit, magazine, or automatic tool. It may be formed in the form of a touch screen that can be output to an exchange device. It may be implemented as a touch screen capable of inputting or outputting various operation commands for the touch screen or tool number, port number, tool status information, basic data, which are tool replacement information, and the like.

As such, since the input/output unit 520 is implemented as a touch screen integrally with the user interface screen 510, it is possible to realize miniaturization of the tool change control device of the machine tool and maximize the convenience of the operator.

The graphic data storage unit 530 synchronizes the current state of the magazine or the automatic tool changer in real time according to a command signal transmitted from the tool change control unit to store a graphic guidance program for converting to graphic. The graphic data storage unit 530 may be various storage devices such as ROM, RAM, EPROM, flash drive, hard drive, and the like.

As shown in FIG. 3 , the tool exchange control unit 600 of the tool change control device of the machine tool according to the present invention includes a basic data storage unit 610 , a reception unit 620 , a calculation unit 630 , and a determination unit 640 . , and a command unit 650 .

The basic data storage unit 610 includes a tool number (TOOL no.), a port number (POT no.), tool status information (status), tool offset information (TOOL OFFSET), a reference position, a standby position, and , It stores the tool change information of the exchange location. The basic data storage unit 610 may be various storage devices such as ROM, RAM, EPROM, flash drive, hard drive, etc., and web storage ( web storage).

The receiving unit 620 receives signals output from the numerical control unit 300 , the PLC 400 , and the input/output 520 . In addition, the receiving unit 620 may perform predetermined wired/wireless communication through the magazine 100 , the automatic tool changer 200 , or the user interface unit 500 and a communication module, etc., if necessary. These communication modules are based on technical standards or communication methods for mobile communication (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink (HSUPA)). Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc. on a mobile communication network constructed in accordance with the base station, the external terminal 100, an arbitrary server and at least one of a wireless signal can be transmitted and received. have.

In addition, the communication module is WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access) ) may also transmit and receive wireless signals using a wireless communication method such as, but not limited to.

In addition, the communication module may transmit and receive a wireless signal in a short-range wireless communication method. For example, the communication module is Bluetooth (Bluetooth™), RFID (Radio Frequency Identification), infrared communication (Infrared Data Association; IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi ( Short-distance communication may be supported using at least one of Wireless-Fidelity), Wi-Fi Direct, and Wireless Universal Serial Bus (USB), but is not limited thereto.

The calculation unit 630 compares the reference position with the signal received from the receiving unit 620 and the exchange position stored in the basic data storage unit when a tool number or port number for tool exchange is input through the input/output unit 520 and Calculate the rotation direction and amount of rotation of the magazine.

The determination unit 640 determines the clamp or unclamp signal of the spindle by the PLC after the tool of the tool number or port number input through the input/output unit 520 as a result of the calculation of the calculation unit 630 is moved to the replacement position. .

When the magazine 100 or the automatic tool changer 200 is operated by the numerical control unit 300 or the PLC 400 according to the result of the calculation unit 630 or the determination unit 640, the command unit 650 is In conjunction with the magazine or automatic tool changer, a command signal is output to be displayed in graphic form on the user interface screen.

When the command unit 650 outputs a signal, the command unit signal is received through the input/output unit 520 , and the corresponding signal goes through the graphic data storage unit 530 and is converted into a GUI graphic form through the graphic guidance program stored therein. It is displayed on the user interface screen 510 .

4 to 6, the user interface screen 510 of the user interface unit of the tool change control device of the machine tool according to the present invention is a function selection unit 514, a mode selection unit 515, the first screen ( 511 ), a second screen 512 , and a third screen 513 .

The function selection unit 514 may be disposed on the left side of the user interface screen 510 to select a power source, a cursor type, a machine tool state, and a setting. A user may select various modes using a pointing device such as a keyboard or a mouse according to a selection of a cursor type or may input information for an operation command.

The mode selection unit 515 is disposed on the upper portion of the user interface screen 510 and includes a magazine rotation for tool exchange (MAGAZINE ROTATION), a tool reset (TOOL no. LIST), a tool offset (TOOL OFFSET), and an alarm reset (ALARM). RESET), mode selection is possible.

As for the user interface screen, any one of the first screen 511 , the second screen 512 , and the third screen 513 is displayed on the user interface screen according to the selection of the mode selection unit 515 .

That is, specifically, when the operator or user selects the magazine rotation mode in the mode selection unit 515 (see FIG. 4 ), the real-time operation status of the magazine or automatic tool changer and the tool number or port number of the exchange tool are displayed on the user interface screen. and a first screen 511 on which the tool number or port number of the machining tool and various selection units are displayed appears.

In addition, when the operator or user selects the tool list mode in the mode selection unit 515 (see FIG. 5 ), a second screen 512 on the user interface screen on which the tool number, port number, and tool state information mounted in the magazine are displayed. ) appears.

In addition, when the operator or the user selects the tool offset mode in the mode selection unit 515 (see FIG. 6 ), a third screen is displayed on which the tool offset information of the tool input on the user interface screen can be checked or input is displayed. (513) appears.

Therefore, the tool change control device of the machine tool according to the present invention can control the current operating state of the magazine or the automatic tool changing device only with the tool number or port number only by the simple mode selection operation of the mode selection unit of the operator or user at the time of tool exchange. Displayed in real-time synchronized state on the user interface screen, the user can intuitively check and operate the magazine and automatic tool changer to improve user convenience and maximize user satisfaction by displaying it so that even beginners can use it easily. and can prevent accidents in advance.

4, the first screen 511 of the user interface screen 510 of the user interface unit of the tool change control device of the machine tool according to an embodiment of the present invention is a magazine status display area 511a, an automatic tool It includes an exchange device status display area 511b, a search selection unit 511c, an automatic selection unit 511d, and a rotation direction selection unit 511e.

The magazine status display area 511a displays status information of a magazine in operation through communication with a numerical control unit, a PLC, or a user interface unit. Specifically, when the magazine rotates according to the real-time operation status of the magazine, the magazine displayed as a GUI in the magazine status display area of the first screen also rotates the same as the actual magazine, and the tool number or port of the exchange tool exchanged at the exchange location number is displayed.

The automatic tool changer status display area 511b displays status information of the automatic tool changer in operation through communication with a numerical control unit, PLC, or user interface unit. Specifically, when the automatic tool changer rotates according to the real-time operation state of the automatic tool changer and rotates to exchange the exchange tool transferred to the exchange position of the magazine and the machining tool being processed on the spindle, the automatic tool status on the first screen The automatic tool changer displayed by GUI in the display area rotates the same as the actual automatic tool changer, and the tool number or port number of the exchange tool exchanged at the exchange position with the machining tool of the spindle is displayed.

The search selection unit 511c searches for a corresponding tool through the tool number or port number input through the input/output unit 520 .

The automatic selection unit 511d determines whether to search for a tool searched through the search selection unit automatically (auto) or manually (manual). That is, after the user inputs the tool number or port number input through the input/output unit 520 into the search selection unit 511c when the user selects manual in the automatic selection unit 511d with an operation key or a mouse, etc. The rotation direction is determined by manipulating the clockwise rotation (cw) or the counterclockwise rotation (ccw) of the rotation direction selection unit 511e to be described later. Conversely, when the user selects auto in the automatic selection unit 511d with an operation key or a mouse, the tool number or port number input through the output unit 520 is inputted into the search selection unit 511c and then rotated. The direction of rotation, etc. is automatically calculated and operated through the above-described tool change control unit without selection of the direction selection unit.

The rotation direction selection unit 511e selects the rotation direction of the magazine to retrieve the searched tool when it is manually selected by the automatic selection unit. That is, if the user selects manual in the automatic selection unit and then selects clockwise rotation in the rotation direction selection unit, the magazine moves clockwise to search for the tool of the tool number or port number entered in the input/output unit and move to the replacement position with the corresponding tool. Conversely, if the user selects counterclockwise rotation in the rotation direction selection unit, the magazine rotates counterclockwise to search for the tool of the tool number or port number entered in the input/output unit and move to the replacement position with the corresponding tool.

As shown in Figure 5, the second screen 512 of the user interface screen 510 of the user interface unit of the tool replacement control device of the machine tool in an embodiment of the present invention is a tool number display area (512a), port number display It includes an area 512b, a tool status display area 512c, a port number range selection unit 512d, and an initialization selection unit 512e.

The tool number display area 512a displays tool number information of the current tool mounted in the magazine.

The port number display area 512b displays port number information of the current tool mounted in the magazine.

The tool status display area 512c displays tool status information of the current tool mounted in the magazine. Although not shown in the drawings, the tool length, diameter, tool life warning, tool breakage, etc. are specifically displayed.

The port number range selection unit 512d selects a port number range displayed on the second screen. Specifically, since a minimum of 1 to a maximum of 200 or more tools can be installed in the magazine, even when the user selects the tool list mode in the mode selection unit, there may be cases where all the tool lists cannot be displayed on the second screen. , at this time, the user may select a desired port number range by operating the port number range selection unit. For example, P001-P020, P021-P040, and P041-P060 indicate that a total of 60 tools are displayed on the second screen through the operation of the port number range selection unit by 20 each. However, the present invention is not necessarily limited thereto, and various numbers of tools may be displayed on the second screen through the operation of the port number range selection unit through the user's setting or the like.

The initialization selection unit 512e may initialize tool information displayed on the second screen. Accordingly, the user can improve the operation convenience and shorten the operation time.

As shown in FIG. 6 , the third screen 513 of the user interface screen 510 of the user interface unit of the tool change control device of the machine tool in an embodiment of the present invention includes a tool offset information display area 513a and a tool offset and an information selection unit 512b.

The tool offset information display area 513a displays tool offset information of the current tool mounted in the magazine. Specifically, when the user manually changes the tool through the tool offset information display area 513a, the user does not need to go to the numerical control unit to check the length, diameter, and offset number, which are the tool offset information of the current tool to be replaced, immediately. can be checked

The tool offset information selection unit 512b may manually check the tool offset information of the current tool mounted in the magazine at the time of tool replacement without going to the numerical control unit and confirming it or entering it without going to the numerical control unit to confirm it.

As such, the tool change control apparatus and control method of a machine tool according to the present invention display tool status information on the screen of the user interface according to mode selection to prevent damage to tools and other equipment, thereby reducing the maintenance cost of the machine tool and , it reduces the wastage of resources by preventing the reduction of machining precision due to damage or breakage of the tool in advance. Accordingly, it is possible to improve the productivity of the machine tool and reduce the inconvenience of the operator.

A tool exchange control method of a machine tool according to the present invention will be described with reference to FIG. 7 . As shown in Figure 7, the tool exchange control method of the machine tool according to the present invention is a data storage step (S1), a tool information transmission step (S2), a tool information receiving step (S3), a calculation step (S4), a command signal It includes an output step (S5), a magazine status display step (S6), a determination step (S7), a command signal re-output step (S8), and an automatic tool changer status display step (S9).

It stores various data to synchronize and display the operation status of the magazine or automatic tool changer and tool change information on the user interface screen in real time. That is, the tool number, port number, tool state information, tool offset information, reference position, standby position, and exchange position are stored in the basic data storage unit through the user interface unit screen formed by the input/output unit or touch screen of the user interface unit, and , stores the graphic guidance program in the graphic data storage unit to display the GUI screen on the user interface screen through the command transmitted through the command unit to be described later.

After the data storage step (S1), the tool information for tool exchange and the user's operation command are transmitted through the input/output unit, the user interface screen, or the numerical control unit.

After the tool information transfer step (S2), the receiving unit of the tool exchange control unit receives the received tool information from the input/output unit.

After the tool information receiving step (S3), the calculation unit calculates the rotation direction and the rotation amount of the magazine by comparing the tool information received by the receiving unit with the data previously stored in the basic data storage unit. If a manual operation command is input through the automatic selection unit in the tool information transfer step, the subsequent steps are not performed.

After the calculation step (S4), when the magazine is operated by the numerical control unit, PLC, or the user interface unit according to the calculation result, the command unit outputs a command signal to be displayed on the user interface screen in conjunction with the magazine.

After the command signal output step (S5), the output command signal is received by the input/output unit, and the user interface graphic is synchronized to the user interface screen through the user graphic guidance program pre-stored in the graphic data storage unit to display the magazine status on the screen in real time. displayed on

After the magazine status display step (S6), after the magazine operates according to the calculation result of the rotation direction and the amount of rotation of the magazine, clamp or unclamp the spindle in the determination unit by communication with the numerical control unit, PLC, or user interface unit identify the signal.

After the determination step (S7), when the automatic tool changer is operated by the numerical control unit, PLC, or user interface unit according to the determination result, the command signal is re-outputted to be displayed on the user interface screen in conjunction with the automatic tool changer do.

After the command signal re-output step (S8), the input/output unit receives the re-output command signal, and synchronizes the user interface graphic to the user interface screen through the user graphic guidance program pre-stored in the graphic data storage unit to state the automatic tool changer is displayed on the screen in real time.

In this way, the tool exchange control method of the machine tool according to the present invention synchronizes the current operating state of the magazine or automatic tool changer to the user interface screen in real time only with the tool number or port number according to the mode selection of the mode selection unit at the time of tool exchange. The user can intuitively check and operate the magazine and automatic tool changer status by displaying in the displayed state, improving the user's convenience. When changing tools, the current operation status of the magazine or automatic tool changer is displayed on the user interface screen in real-time synchronized with the tool number or port number only according to the mode selection of the mode selection unit, allowing the user to intuitively connect with the magazine. By checking the status of the automatic tool changer and operating it, it is possible to maximize the stability and reliability of the machine tool and improve the machining precision by preventing the user's erroneous operation or erroneous input.

2 to 7, the operating principle of the tool change control apparatus and control method of the machine tool according to the present invention will be described.

As shown in FIG. 4 , the user selects the magazine rotation mode in the mode selection unit 515 when exchanging tools. When the magazine rotation mode is selected, the first screen is displayed on the user interface screen, and the user selects auto or manual in the automatic selection unit 511d. When the user selects manually, the tool number or port number for tool exchange is input into the search selection unit 511c through the input/output unit of the user interface unit or the user interface screen formed of the touch screen, and the rotation direction selection unit 511e is selected. to select the direction of clockwise or counterclockwise rotation of the magazine. Accordingly, the servo motor operates by control commands such as PLC and numerical control unit to rotate the magazine. At the same time, the actual magazine and the operating status of the automatic tool changer are displayed in a GUI form on the user interface screen in real time.

Conversely, if the user selects automatic, if the tool number or port number for tool exchange is input into the search selection unit 511c through the input/output unit of the user interface unit or the user interface screen formed by the touch screen, the tool exchange control unit automatically activates the magazine. The rotation direction is calculated and the magazine rotates, and the automatic tool changer rotates according to the judgment of the judging unit. At the same time, the actual magazine and the operating status of the automatic tool changer are displayed in a GUI form on the user interface screen in real time.

Specifically, when the tool number or port number is input and the calculation is completed by the calculation unit, the PLC operates by the signal of the command unit to drive the servo motor of the magazine, and the command unit and PLC signals are read from the input/output unit to save graphic data The user interface screen is converted to the GUI screen in real time by the pre-stored graphic guidance program. That is, as the servo motor of the magazine is driven, whenever the port rotates once, the magazine port in the magazine status display area of the user interface screen also rotates once.

When the replacement tool moves from the actual magazine to the replacement position, the servomotor is stopped, and the magazine port in the magazine status display area of the user interface screen is also stopped through the above-described signals and processes. At the same time, the tool number or port number of the replacement tool is displayed in the magazine status display area.

After that, when the servo motor of the automatic tool changer actually rotates, an operation signal is transmitted to the receiver and input/output unit through the PLC or numerical control unit, and the determination unit determines the corresponding signal to detect clamping or unclamping of the spindle. In fact, when the clamp signal is output from PLC or the numerical control unit, the change arm of the automatic tool changer rotates 180 degrees, and the command unit outputs the command signal according to the judgment result of the judgment unit that received the signal from the PLC or numeric control unit, and the command unit and PLC signals are read from the input/output unit and transmitted to the graphic data storage unit, and the user interface screen is converted to the GUI screen in real time by the pre-stored graphic guidance program, and the change arm of the automatic tool changer display area rotates 180 degrees. Similarly, when the unclamp signal is actually output from the PLC or the numerical control unit, the change arm of the automatic tool changer rotates 360 degrees, and the command unit outputs the command signal according to the judgment result of the judgment unit that received the signal from the PLC or the numerical control unit. , the command unit and PLC signal are read from the input/output unit and transmitted to the graphic data storage unit, and the user interface screen is converted to the GUI screen in real time by the pre-stored graphic guidance program, and the change arm of the automatic tool changer display area rotates 360 degrees. will do That is, whenever the change arm rotates 180 degrees or 360 degrees as the servo motor of the automatic tool changer is driven, the change arm also rotates 180 degrees or 360 degrees in the automatic tool changer status display area of the user interface screen.

When the change arm of the automatic tool changer exchanges the exchange tool located at the exchange position with the machining tool mounted on the spindle, the tool number or port number for the exchange tool and the machining tool is displayed in the automatic tool exchange device display area. .

As shown in FIG. 5 , when the user wants to check the tool list, the mode selection unit 515 may select the tool list mode. When the tool list mode is selected, a second screen is displayed on the user interface screen, and the user can select a port number range that he or she wants to check through the port number range selection unit. Accordingly, it is possible to check the tool number, port number, large diameter, length, diameter, life status, and whether or not there is damage of the tool.

As shown in FIG. 6 , when the user wants to check the tool offset in the case of manual tool change, the tool offset mode can be selected in the mode selection unit 515. Through the tool offset mode selection, the user interface screen is displayed. A third screen is displayed, and the user can check the tool offset information without going through the numerical control unit, and correct or input it.

Although not shown in the drawings, when an alarm is generated during operation of the machine tool, the user may select ALARM RESET in the mode selection unit 515 . Accordingly, it is possible to intuitively check the reason for the alarm through the GUI, correct it, and at the same time reset the alarm without going through the numerical control unit to promote operator convenience and improve productivity by reducing non-working time.

In this way, the tool change control device for a machine tool and its control method according to the present invention display the current operating state of the magazine or automatic tool change device only with the tool number or port number according to the mode selection of the mode selection unit at the time of tool exchange on the user interface screen It is displayed in real-time synchronized state on the screen to improve the user's convenience as the user intuitively checks and operates the magazine and automatic tool changer, and maximizes user satisfaction by displaying it so that even beginners can use it easily. Maximize machine stability and reliability, improve productivity by reducing non-working time, prevent safety accidents in advance, reduce maintenance costs due to tool damage or breakage, and reduce machining costs by preventing workpiece waste. can

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those having ordinary knowledge in the technical field of the present invention described in the claims to be described later It will be understood that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: tool change control device, 100: magazine,
200: automatic tool changer, 300: numerical control unit,
400: PLC, 500: user interface unit,
510: user interface screen, 520: input/output unit,
530: graphic data storage unit, 600: tool change control unit,
610: basic data storage unit, 620: receiving unit,
630: calculation unit, 640: judgment unit,
650: Command.

Claims (9)

numerical control unit;
PLC for driving a magazine or automatic tool changer for tool change;
a user interface unit having a user interface screen and inputting or outputting an operation command to perform tool change according to the operation of the magazine and the automatic tool changer; and
A tool for controlling a command signal to synchronize and display the operation state of the magazine or the automatic tool changer and tool change information on the user interface screen in real time through communication with the numerical control unit, the PLC, or the user interface unit Exchange control unit; tool exchange control device of a machine tool comprising a.
According to claim 1,
The user interface unit,
an input/output unit for inputting or outputting information for tool exchange; and
A graphic data storage unit for storing a graphic guidance program for converting the current state of the magazine or the automatic tool changing device into a graphic by synchronizing in real time according to a command signal received from the tool change control unit; characterized in that it comprises a Tool change control device for machine tools. 3. The method of claim 2,
The tool change control unit,
a basic data storage unit for storing tool number, port number, tool state information, tool offset information, reference position, standby position, and tool exchange information of the exchange position for tool exchange;
a receiver configured to receive a signal output from the numerical control unit, the PLC, and the input/output unit;
When a tool number or port number for tool exchange is input through the input/output unit, the rotation direction and amount of rotation of the magazine are calculated by comparing the signal received from the receiving unit and the exchange position stored in the basic data storage unit and the reference position. calculation unit;
a determination unit for determining a clamp or unclamp signal by the PLC after the tool of the tool number or port number input through the input/output unit is moved to an exchange position as a result of the calculation of the calculation unit; and
When the magazine or the automatic tool changer is operated by the numerical control unit or the PLC according to the result of the calculation unit or the determination unit, it is instructed to display on the user interface screen in conjunction with the magazine or the automatic tool changer A command unit for outputting a signal; tool change control device of a machine tool comprising a.
According to claim 1,
The user interface screen is
function selection unit; and
Includes a mode selector that allows magazine rotation for tool exchange, tool reset, tool offset, and alarm reset mode selection.
A tool change control apparatus for a machine tool, characterized in that any one of the first screen, the second screen, or the third screen is displayed on the user interface screen according to the operation of the mode selection unit.
5. The method of claim 4,
The first screen displays the real-time operating state of the magazine or the automatic tool changer and the tool number or port number of the exchange tool and the tool number or port number of the machining tool when the magazine rotation mode is selected in the mode selection unit, ,
The first screen is
a magazine status display area for displaying status information of the magazine in operation through communication with the numerical control unit, the PLC, or the user interface unit;
an automatic tool changer status display area for displaying status information of the automatic tool changer in operation through communication with the numerical control unit, the PLC, or the user interface unit;
a search selection unit for searching the corresponding tool through the tool number or port number input through the input/output unit;
an automatic selection unit for determining whether to automatically or manually search for a tool searched through the search selection unit; and
and a rotation direction selection unit for selecting a rotation direction of the magazine in order to search for a searched tool when manually selected by the automatic selection unit.
5. The method of claim 4,
The second screen displays the tool number, port number, and tool state information mounted in the magazine when the tool list is selected in the mode selection unit,
The second screen is
a tool number display area for displaying tool number information of the current tool mounted in the magazine;
a port number display area for displaying port number information of the current tool mounted on the magazine;
a tool status display area for displaying tool status information of the current tool mounted in the magazine;
a port number range selection unit for selecting a port number range displayed on the second screen; and
Tool exchange control apparatus for a machine tool comprising a; an initialization selection unit capable of initializing the tool information displayed on the second screen.
5. The method of claim 4,
The third screen displays a state in which the tool offset information of the tool input when the tool offset is selected in the mode selection unit can be checked or input;
The third screen is
a tool offset information display area for displaying tool offset information of a current tool mounted in the magazine; and
A tool change control device for a machine tool comprising a; a tool offset information selection unit for checking or inputting tool offset information of the current tool mounted in the magazine.
storing data for displaying the magazine or automatic tool changer operation state and tool change information in real time on a user interface screen in synchronization;
receiving tool information for tool exchange;
receiving the transmitted tool information;
calculating the rotation direction and amount of the magazine by comparing the received tool information with pre-stored data;
outputting a command signal to be displayed on a user interface screen in conjunction with the magazine when the magazine is operated by a numerical control unit, a PLC, or a user interface unit according to the calculation result; and
Receiving the output command signal and synchronizing the user interface graphic to the user interface screen through the pre-stored user graphic guidance program to display the magazine status;
9. The method of claim 8,
After the step of displaying the magazine status,
determining a clamp or unclamp signal by communication with the numerical control unit, the PLC, or the user interface unit after the magazine operates according to the calculation result of the rotation direction and the rotation amount of the magazine;
When the automatic tool changer is operated by the numerical control unit, the PLC, or the user interface unit according to the determination result, the automatic tool changer interlocks with the automatic tool changer to re-output a command signal to be displayed on the user interface screen step; and
Receiving the re-output command signal and synchronizing the user interface graphic to the user interface screen through the pre-stored user graphic guidance program to display the automatic tool changer status; Way.

Images