CN111722589B - Machine tool, determination method, and storage medium - Google Patents
Machine tool, determination method, and storage medium Download PDFInfo
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- CN111722589B CN111722589B CN201911354602.6A CN201911354602A CN111722589B CN 111722589 B CN111722589 B CN 111722589B CN 201911354602 A CN201911354602 A CN 201911354602A CN 111722589 B CN111722589 B CN 111722589B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000003321 amplification Effects 0.000 claims abstract description 178
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 178
- 230000005540 biological transmission Effects 0.000 claims abstract description 79
- 238000003754 machining Methods 0.000 claims abstract description 17
- 238000004590 computer program Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 description 83
- 230000006870 function Effects 0.000 description 12
- 230000002238 attenuated effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31047—Display image of finished workpiece on screen, show how, where to mount next part
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geometry (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present invention relates to a machine tool, a determination method, and a storage medium for determining an amplification factor of an amplitude of an image signal. The machine tool fixes a control board and an operation board on the outer side of a machine tool main body for machining. The transmission line connects the control board with the operation board. The signal output section of the control board outputs an image signal via a transmission line. The equalizer of the operation panel amplifies the amplitude of the image signal and outputs the amplified image signal to the display unit. The display unit displays an image of the image signal. The operation control unit determines an amplification factor by which the equalizer amplifies the signal based on length information indicating the length of the transmission line.
Description
Technical Field
The present invention relates to a machine tool, a determination method, and a storage medium for determining an amplification factor of an amplitude of an image signal.
Background
The machine tool performs machining on the workpiece. The machine tool disclosed in japanese laid-open patent publication 2016-49575 includes a machine tool body for performing machining, a signal output device, and a display. The signal output device is fixed on one side of the machine tool main body, and the display is fixed on the other side of the machine tool main body. The signal output unit outputs an image signal to the display. The display displays an image based on the image signal output by the signal output unit. The display notifies the operator of various information.
The transmission line of the machine tool connects the signal output device with the display. The signal output unit outputs the image signal to the display via the transmission line. When an image signal is transmitted in a transmission line, the amplitude of the image signal is attenuated. Therefore, the machine tool is provided with an amplifier for amplifying the amplitude of the image signal. The display displays an image based on the image signal amplified by the amplifier.
The manufacturer manufactures various kinds of machine tools having different widths of machine tool bodies, that is, different distances between the signal output device and the display. The length of the transmission line varies according to the width of the machine tool body. The longer the transmission line, the greater the amplitude of the image signal decays. Therefore, when the amplification factor amplified by the amplifier is fixed irrespective of the length of the transmission line, a problem may occur. When the width of the machine tool body is large, the amplitude of the image signal is small, and therefore the display may not be able to read the image signal. When the width of the machine tool body is small, there is a possibility that an image signal having an amplitude exceeding the amplitude that can be input to the display enters the display. Therefore, the machine tool has a problem that the image signal cannot be accurately displayed.
Disclosure of Invention
The invention aims to provide a machine tool, a determination method and a storage medium for properly determining an amplification factor related to the amplitude of an image signal.
In the machine tool according to claim 1, a signal output device for outputting an image signal and a display for displaying an image based on the image signal output by the signal output device are fixed to an outer side of a machine tool body in which machining is performed, the machine tool comprising: a transmission line connecting the signal output device with the display and transmitting the image signal; an amplifier that amplifies an amplitude of an image signal; a storage unit that stores length information indicating the length of the transmission line; and a determination unit that determines an amplification factor by which the amplifier amplifies the signal based on the length information stored in the storage unit.
In the machine tool according to claim 2, the number of amplifiers is 2 or more, the signal output device and the display each have an amplifier, and the determination unit determines an amplification factor at which the signal output device and the display each have an amplifier to amplify.
In the machine tool according to claim 3, the signal output device includes: a storage unit; a determination unit; and a transmitting unit that transmits an amplification factor signal indicating the amplification factor determined by the determining unit, the display including: an amplifier; a receiving unit that receives the amplification factor signal transmitted by the transmitting unit; and a setting unit that sets an amplification factor at which the amplifier of the display amplifies the signal as an amplification factor indicated by the amplification factor signal received by the receiving unit.
In the determination method according to claim 4, the computer acquires length information indicating a length of a transmission line of a machine tool in which a signal output device for outputting an image signal and a display for displaying an image based on the image signal output by the signal output device are fixed to an outside of a machine tool main body in which machining is performed, and the transmission line for transmitting the image signal connects the signal output device and the display; the computer determines an amplification factor related to the amplification of the amplitude of the image signal by the amplifier based on the acquired length information.
The storage medium of claim 5 is a non-transitory storage medium in which a computer program is readable, the computer program causing a computer to execute: acquiring length information indicating a length of a transmission line of a machine tool in which a signal output device for outputting an image signal and a display for displaying an image based on the image signal output by the signal output device are fixed to an outside of a machine tool body in which machining is performed, and the transmission line for transmitting the image signal connects the signal output device with the display; an amplification factor related to the amplification of the amplitude of the image signal by the amplifier is determined based on the acquired length information.
The signal output device, the display, and the like appropriately determine the amplification factor of the amplifier based on the length information indicating the length of the transmission line. The longer the transmission line, the greater the amplification. The shorter the transmission line, the smaller the amplification. The manufacturer writes length information indicating the length of the transmission line into the storage section. Thus, the amplifier amplifies the amplitude of the image signal at an appropriate amplification factor.
The signal output device, the display, and the like appropriately determine the amplification factors of the two amplifiers included in the signal output device and the display to amplify the signals based on the length information indicating the length of the transmission line.
The signal output unit determines an amplification factor of the amplifier of the display unit based on the length information, and transmits an amplification factor signal indicating the determined amplification factor to the display unit via the communication line. The display sets the amplification factor of the amplifier to the amplification factor indicated by the received amplification factor signal.
Drawings
Fig. 1 is a perspective view of the machine tool according to embodiment 1.
Fig. 2 is a schematic side view of the machine tool.
Fig. 3 is a block diagram showing the configuration of the important parts of the control board and the operation board.
Fig. 4 is a graph showing a magnification table.
Fig. 5 is a flowchart showing a procedure of processing performed by the control board and the operation board.
Fig. 6 is an explanatory diagram of the effect of the machine tool.
Fig. 7 is a block diagram showing the configuration of the main parts of the control board and the operation board according to embodiment 2.
Fig. 8 is a diagram showing a magnification table.
Fig. 9 is a flowchart showing a procedure of processing performed by the control board and the operation board.
Fig. 10 is a block diagram showing the configuration of the essential parts of the control board and the operation board according to embodiment 3.
Fig. 11 is a flowchart showing a procedure of processing performed by the control board.
Fig. 12 is a flowchart showing a procedure of processing performed by the control board and the operation board of embodiment 4.
Detailed Description
As shown in fig. 1, the machine tool 1 has a rectangular parallelepiped machine tool body 10. A space, not shown, is provided inside the machine tool body 10. The operator places a workpiece to be processed in a space inside the machine tool body 10. The machine tool body 10 has a tool in a space. The machine tool body 10 internally uses a tool to machine a workpiece. Machining is milling, drilling and the like.
The machine tool 1 is fixed with a control board 11 and an operation board 12 outside a machine tool body 10. The control board 11 outputs image signals of various images to the operation board 12. The image signal is a pulse-shaped electric signal based on specifications such as HDMI (registered trademark) (high definition multimedia interface) and DVI (digital video interface). The control board 11 outputs an image signal showing an image or the like of a set value required for machining. The operation panel 12 has a display unit 20. The operation panel 12 displays an image based on the image signal output from the control panel 11 on the display unit 20. The control board 11 and the operation board 12 function as a signal output device and a display device, respectively.
The operation panel 12 includes an operation unit 21 such as a button, a switch, and a touch panel. The operator operates the operation unit 21 while viewing the image displayed on the display unit 20. The operation panel 12 outputs an operation signal indicating the content of an operation performed by the operator using the operation unit 21 to the control panel 11. The control board 11 generates a control signal indicating the machining content based on the content of the operation indicated by the operation signal output from the operation board 12, and outputs the generated control signal to the machine tool body 10.
The machine tool body 10 performs machining on a workpiece in accordance with the content of a control signal output from the control board 11, and outputs state information indicating the state of the workpiece or the like to the control board 11. When the state information output from the machine tool body 10 indicates a specific state, the control board 11 outputs an image signal indicating an image of a warning to the operation board 12. The operation panel 12 displays an image representing a warning, which is an image based on the image signal output from the control panel 11, on the display unit 20. The control board 11 outputs an image signal showing an image of the updated setting value to the operation board 12 based on the content of the operation indicated by the operation signal output from the operation board 12. The display unit 20 of the operation panel 12 displays an image showing the updated setting value. The operator operates the operation unit 21 while viewing the image redisplayed by the display unit 20.
The control plate 11 and the operation plate 12 face each other through the machine tool body 10. As shown in fig. 2, the machine tool 1 has a transmission line Lg for transmitting an image signal. The transmission line Lg is an electric wire or the like, and passes through the machine tool body 10. The transmission line Lg connects the control panel 11 with the operation panel 12. The machine tool 1 has a communication line Lc. The communication line Lc is a LAN (Local Area Network: local area network) line or the like, and penetrates the machine tool body 10. The communication line Lc also connects the control board 11 with the operation board 12. The communication line Lc is used for transmitting an operation signal. The transmission line Lg and the communication line Lc may not pass through the machine tool body 10. At this time, the transmission line Lg and the communication line Lc are located outside the machine tool body 10. In transmitting the image signal, the amplitude of the image signal is attenuated in the transmission line Lg. The longer the length of the transmission line Lg, the larger the amplitude of the image signal is attenuated. The manufacturer manufactures various kinds of machine tools 1 having different widths of the machine tool main body 10, that is, different distances between the control plate 11 and the operation plate 12. The longer the distance between the control board 11 and the operation board 12 is, the longer the distance of the transmission line Lg is.
As shown in fig. 3, the control board 11 includes an input/output unit 30, a signal output unit 31, a communication unit 32, a storage unit 33, and an operation control unit 34, which are connected to each other by an internal bus 35. The input/output unit 30 is connected to the machine tool body 10. The signal output section 31 is connected to one end of the transmission line Lg. The communication unit 32 is connected to one end of the communication line Lc. As described above, the other end of the transmission line Lg and the other end of the communication line Lc are connected to the operation panel 12. The input/output unit 30, the signal output unit 31, the communication unit 32, the storage unit 33, and the operation control unit 34 are provided on the substrate, respectively.
The input/output unit 30 outputs a control signal indicating the content of machining to the machine tool body 10 in accordance with an instruction from the operation control unit 34. As described above, the machine tool body 10 performs machining on the workpiece in accordance with the content indicated by the control signal. The machine tool body 10 outputs state information indicating the state of the workpiece to the input/output unit 30. The signal output unit 31 outputs an image signal to the operation panel 12 via the transmission line Lg in accordance with an instruction from the operation control unit 34. The communication unit 32 transmits a signal to the operation panel 12 via the communication line Lc in accordance with an instruction from the operation control unit 34. The communication unit 32 receives an operation signal from the operation panel 12 via the communication line Lc. The storage unit 33 is a nonvolatile memory means such as ROM and EEPROM. The storage unit 33 stores a computer program Pm, length information B, and a magnification table T. The length information B indicates the length of the transmission line Lg. The length information B is not limited to information directly indicating the length of the transmission line Lg. As described above, the longer the width of the machine tool body 10, that is, the distance between the control plate 11 and the operation plate 12, the longer the transmission line Lg. The length information B may be information indicating the width of the machine tool body 10, information indicating the model number of the machine tool body 10, or the like. As will be described later, the operation panel 12 amplifies the amplitude of the image signal outputted from the signal output section 31 of the control panel 11 via the transmission line Lg.
As shown in fig. 4, the amplification factor table T shows a relationship between the length of the transmission line Lg and the amplification factor of the amplitude of the image signal, and has a length column and an amplification factor column. The amplification factor table T shows the lengths of the various transmission lines Lg in the length column. In the example of fig. 4, the magnification table T shows 5m, 7m, 10m, and the like in the length column. The magnification table T shows the magnification in the magnification column corresponding to each length shown in the length column. In the example of fig. 4, 5m, 7m, and 10m correspond to 2.0 times, 2.5 times, and 3.0 times, respectively. The longer the length of the transmission line Lg, the larger the amplification factor.
The operation control unit 34 shown in fig. 3 has a CPU. The CPU of the operation control unit 34 executes processing by executing the computer program Pm. The operation control unit 34 generates a control signal indicating the machining content based on the content of the operation indicated by the operation signal received by the communication unit 32. The operation control unit 34 instructs the input/output unit 30 to output the generated control signal. As described above, the input/output unit 30 outputs a control signal to the machine tool body 10 in accordance with the instruction of the operation control unit 34. The machine tool body 10 performs machining on a workpiece in accordance with the content of the control signal output from the input/output unit 30.
The operation control unit 34 determines the amplification factor of the amplitude of the image signal, and instructs the communication unit 32 to transmit an amplification factor signal indicating the determined amplification factor. The communication unit 32 transmits an amplification factor signal to the operation panel 12 via the communication line Lc in accordance with an instruction from the operation control unit 34.
Regarding the computer program Pm, a non-transitory storage medium Am in which the computer program Pm is stored in a readable manner may also be used to supply the computer program Pm to the control board 11. The storage medium Am is a portable storage means such as a CD-ROM, a USB memory, an SD card, a micro SD card, and a compact flash (registered trademark). The operation control unit 34 reads the computer program Pm from the storage medium Am using a reading device not shown, and writes the read computer program Pm into the storage unit 33. When the control board 11 includes a communication unit, not shown, for communicating with an external device, the computer program Pm can be provided to the control board 11 by communication via the communication unit. The operation control unit 34 acquires the computer program Pm through the communication unit, and writes the acquired computer program Pm into the storage unit 33.
The operation panel 12 includes an Equalizer (Equalizer) 22, a communication unit 23, a storage unit 24, and an operation-side control unit 25, in addition to the display unit 20 and the operation unit 21. The display unit 20, the operation unit 21, the equalizer 22, the communication unit 23, the storage unit 24, and the operation-side control unit 25 are connected to the internal bus 26. The equalizer 22 is connected to the display unit 20 and the other end of the transmission line Lg. The communication unit 23 is connected to the other end of the communication line Lc. The communication unit 23, the storage unit 24, and the operation-side control unit 25 are provided in the FPGA, respectively. The signal output section 31 of the control board 11 outputs an image signal to the equalizer 22 via the transmission line Lg. The equalizer 22 performs signal processing on the image signal output from the signal output unit 31 via the transmission line Lg, and outputs the image signal subjected to the signal processing to the display unit 20. In the signal processing, the equalizer 22 restores the shape of the image signal transmitted through the transmission line Lg and changed, and amplifies the amplitude of the image signal. The operation-side control unit 25 sets the amplification factor of the amplitude in the equalizer 22. The equalizer 22 amplifies the amplitude of the image signal output from the signal output unit 31 via the transmission line Lg at the amplification factor set by the operation-side control unit 25. The equalizer 22 functions as an amplifier.
The display unit 20 is an LCD (liquid crystal display) or the like, and displays an image based on the image signal output from the equalizer 22. As described above, the operator operates the operation unit 21. The operation unit 21 notifies the operation-side control unit 25 of the content of the operation performed by the operator.
The communication unit 23 transmits an operation signal indicating the content of the operation performed by the operator using the operation unit 21 to the communication unit 32 of the control board 11 via the communication line Lc in accordance with the instruction of the operation-side control unit 25. The storage unit 24 is a nonvolatile memory means such as a mask ROM, EEPROM, and flash memory. The storage unit 24 stores a computer program Pd. The operation side control unit 25 has a CPU. The CPU of the operation-side control section 25 executes processing by execution of the computer program Pd. Each time the operator operates the operation unit 21, the operation-side control unit 25 instructs the communication unit 23 to transmit an operation signal indicating the content of the operation by the operator using the operation unit 21. As described above, the communication unit 23 transmits the operation signal to the communication unit 32 of the control board 11 via the communication line Lc in accordance with the instruction of the operation-side control unit 25. When the communication unit 23 receives the amplification factor signal from the communication unit 32 of the control board 11, the operation-side control unit 25 sets the amplification factor of the equalizer 22 to the amplification factor indicated by the amplification factor signal received by the communication unit 23.
As for the computer program Pd, a non-transitory storage medium Ad in which the computer program Pd is stored in a readable manner may also be used to supply the computer program Pd to the operation panel 12. The storage medium Ad is a portable storage means such as a CD-ROM, a USB memory, an SD card, a micro SD card, and a compact flash (registered trademark). The operation-side control unit 25 reads the computer program Pd from the storage medium Ad using a reading device not shown, and writes the read computer program Pd to the storage unit 24. When the operation panel 12 includes a communication unit, not shown, for communicating with an external device, the computer program Pd can be provided to the operation panel 12 by communication via the communication unit. The operation-side control unit 25 acquires the computer program Pd through the communication unit, and writes the acquired computer program Pd into the storage unit 24.
Fig. 5 shows the processing performed by the operation control unit 34 of the control board 11 and the processing performed by the operation-side control unit 25 of the operation board 12. The operation control unit 34 and the operation-side control unit 25 repeatedly execute the above-described processing, respectively. The operation control unit 34 determines whether or not to output an image signal (step S1). The operation control unit 34 determines to output an image signal when it is necessary to display an image such as a warning on the display unit 20 of the operation panel 12 based on the state information output from the machine tool body 10 to the input/output unit 30. Alternatively, when it is necessary to display an image showing the updated setting value based on the content of the operation indicated by the operation signal received by the communication unit 32, it is determined that the image signal is to be output. When it is determined that the image signal is not to be output (S1: no), the operation control unit 34 advances the process to step S1.
When it is determined that the image signal is to be output (yes in step S1), the operation control unit 34 acquires the length information B from the storage unit 33 (step S2), and determines the amplification factor at which the equalizer 22 amplifies the signal based on the length of the transmission line Lg indicated by the acquired length information B (step S3). The operation control unit 34 determines the magnification corresponding to the length indicated by the length information B in the magnification table T. In the example of fig. 4, when the length information B shows 10m as the length of the transmission line Lg, the operation control unit 34 determines the amplification factor by which the equalizer 22 amplifies to be 3.0 times. The operation control unit 34 functions as a determination unit. The configuration for determining the magnification is not limited to the configuration using the magnification table T. The operation control unit 34 may determine the amplification factor using a numerical expression in which the length of the transmission line Lg is a variable. The operation control unit 34 substitutes the length indicated by the length information B into the equation to calculate the magnification. The operation control unit 34 determines the amplification factor at which the equalizer 22 amplifies as the calculated amplification factor.
Next, the operation control unit 34 instructs the communication unit 32 to transmit an amplification factor signal indicating the amplification factor determined in step S3 (step S4). The communication unit 32 transmits an amplification factor signal indicating the amplification factor determined in step S3 by the operation control unit 34 to the communication unit 23 of the operation panel 12 via the communication line Lc. The communication unit 32 functions as a transmitting unit. The communication unit 23 of the operation panel 12 receives the amplification factor signal transmitted from the communication unit 32 via the communication line Lc. The communication unit 23 functions as a receiving unit. The operation-side control section 25 determines whether or not the communication section 23 receives the magnification signal from the communication section 32 of the control board 11 (step S11). When the operation-side control unit 25 determines that the communication unit 23 has not received the magnification signal (S11: no), it executes step S11 again. When it is determined that the communication unit 23 has received the amplification factor signal (yes in step S11), the operation-side control unit 25 sets the equalizer 22 to the amplification factor indicated by the amplification factor signal received by the communication unit 23, that is, the amplification factor determined in step S3 by the operation control unit 34 of the control board 11 (step S12). After step S12, the operation-side control unit 25 ends the process. The operation-side control unit 25 functions as a setting unit.
The operation control unit 34 of the control board 11 instructs the signal output unit 31 to output the image signal after executing step S4 (step S5). As described above, the signal output unit 31 outputs the image signal to the equalizer 22 of the operation panel 12 via the transmission line Lg in accordance with the instruction of the operation control unit 34. The equalizer 22 performs signal processing on the image signal output from the signal output unit 31 to the equalizer 22 via the transmission line Lg. The equalizer 22 amplifies the amplitude of the image signal at the amplification factor set by the operation-side control section 25 in step S12. The equalizer 22 outputs the image signal subjected to the signal processing to the display unit 20. The display unit 20 displays an image of the image signal output from the equalizer 22. The operation control unit 34 ends the process after executing step S5.
The upper part of fig. 6 shows the waveform of the image signal before transmission in the transmission line Lg, the middle part shows the waveform of the image signal after transmission in the transmission line Lg, and the lower part shows the waveform of the image signal output by the equalizer 22. The scales on the vertical and horizontal axes are the same for these three waveforms. As shown in fig. 6, when the image signal is transmitted in the transmission line Lg, the amplitude of the image signal is attenuated. The equalizer 22 amplifies the amplitude of the image signal whose amplitude is attenuated by the amplification factor determined by the operation control unit 34. Accordingly, the equalizer 22 outputs an image signal with an appropriate amplitude to the display unit 20. The display unit 20 correctly displays an image based on the image signal. When the image signal is transmitted through the transmission line Lg, the shape of the image signal changes from a pulse shape. For simplicity of explanation, fig. 6 does not show the change in shape of the image signal. As described above, the equalizer 22 also restores the shape of the image signal.
As described above, the operation control unit 34 of the control board 11 appropriately determines the amplification factor by which the equalizer 22 amplifies based on the length information B. After fixing the control board 11 and the operation board 12 to the outside of the machine tool body 10, the manufacturer of the machine tool 1 writes the length information B into the storage unit 33. Accordingly, the equalizer 22 amplifies the amplitude of the image signal at an appropriate amplification factor.
As another aspect, the operation control unit 25 of the operation panel 12 may determine the amplification factor of the equalizer 22 instead of the operation control unit 34 of the control panel 11. At this time, the operation-side control unit 25 functions as a determination unit. The communication section 32 of the control board 11 transmits the length information B to the communication section 23 of the operation board 12. The operation-side control unit 25 acquires the length information B received by the communication unit 23, determines an amplification factor based on the acquired length information B, and sets the amplification factor at which the equalizer 22 amplifies to the determined amplification factor. The storage unit 24 may store the amplification factor table T.
Embodiment 2
In embodiment 1, the number of amplifiers for amplifying the amplitude of the image signal is 1. The number of amplifiers need not be limited to 1. An aspect different from embodiment 1 is described with respect to embodiment 2. Other structures than those described below are common to embodiment 1. Therefore, the same reference numerals as those of embodiment 1 are given to the components common to embodiment 1, and the description thereof is omitted.
As shown in fig. 7, the machine tool 1 of embodiment 2 has a control board 11a instead of the control board 11. The control board 11a has an amplifier 40 in addition to the constituent parts of the control board 11 of embodiment 1. The connection of the input/output unit 30, the communication unit 32, the storage unit 33, and the operation control unit 34 is the same as in embodiment 1. The control board 11a functions as a signal output device in the same manner as the control board 11. The amplifier 40 may be provided on the substrate. The signal output section 31 and the amplifier 40 are connected to the internal bus 35, respectively. The signal output section 31 is directly connected to the amplifier 40. The amplifier 40 is connected to one end of the transmission line Lg. The signal output unit 31 outputs an image signal to the amplifier 40 in accordance with an instruction from the operation control unit 34. The amplifier 40 amplifies the amplitude of the image signal outputted from the signal output unit 31, and outputs the image signal with the amplified amplitude to the equalizer 22 of the operation panel 12 via the transmission line Lg. The equalizer 22 performs the same signal processing as in embodiment 1 on the image signal output from the amplifier 40, and outputs the image signal subjected to the signal processing to the display unit 20. The display unit 20 displays an image of the image signal output from the equalizer 22. The operation control unit 34 sets the amplification factor of the amplitude in the amplifier 40. The amplifier 40 amplifies the amplitude of the image signal at the amplification factor set by the operation control unit 34. As in embodiment 1, the equalizer 22 amplifies the amplitude of the image signal at the amplification factor set by the operation-side control unit 25. In embodiment 2, the amplifier 40 and the equalizer 22 function as an amplifier that amplifies the amplitude of the image signal. The number of amplifiers is 2. The storage section 33 of the control board 11a stores the amplification factor table Ta instead of the amplification factor table T. As shown in fig. 8, the amplification factor table Ta has a length field, an amplification factor field of the amplifier 40, and an amplification factor field of the equalizer 22. Fig. 8 corresponds to fig. 4. The amplification factor table Ta shows the lengths of various transmission lines Lg in the length column in the same manner as in embodiment 1. The amplification factor table Ta shows, in the amplification factor column of the amplifier 40 and the amplification factor column of the equalizer 22, the amplification factors of the amplifier 40 and the equalizer 22 corresponding to the respective lengths shown in the length column. In the example of fig. 8, at a length of 5m, the amplification factor of the amplifier 40 is 1.2 times, and the amplification factor of the equalizer 22 is 1.8 times. The longer the length of the transmission line Lg, the larger the product of the amplification of the amplifier 40 and the amplification of the equalizer 22.
Fig. 9 shows the processing performed by the operation control unit 34 of the control board 11a and the processing performed by the operation-side control unit 25 of the operation board 12. Fig. 9 corresponds to fig. 5. The operation control unit 34 and the operation-side control unit 25 repeatedly execute processing, respectively. Part of the steps of the process of embodiment 2 are the same as those of the process of embodiment 1. Therefore, the steps common to those of embodiment 1 are denoted by the same reference numerals as those of embodiment 1, and the description thereof is omitted. Steps S1, S2, and S5 of the processing of embodiment 2 are the same as those of embodiment 1. In step S2 of embodiment 2, the operation control unit 34 acquires the length information B from the storage unit 33 in the same manner as in embodiment 1. The operation control unit 34 determines the amplification factor of the amplifier 40 and the amplification factor of the equalizer 22 based on the length of the transmission line Lg indicated by the length information B acquired in step S2 (step S21). In step S21, the operation control unit 34 determines the amplification factor of the amplifier 40 and the amplification factor of the equalizer 22 as the amplification factors corresponding to the length indicated by the length information B in the amplification factor table Ta. In the example of fig. 8, when the length information B shows 10m as the length of the transmission line Lg, the operation control unit 34 determines the amplification factor of the amplifier 40 to be 1.6 times and the amplification factor of the equalizer 22 to be 2.2 times.
The configuration for determining the amplification factor of the amplifier 40 and the amplification factor of the equalizer 22 is not limited to the configuration using the amplification factor table Ta. The operation control unit 34 may determine the amplification factors of the amplifier 40 and the equalizer 22 by using the equation in which the length of the transmission line Lg is variable, as in embodiment 1. The configuration that determines the amplification of amplifier 40 and the configuration that determines the amplification of equalizer 22 may be different from each other. The operation control unit 34 may determine the amplification factor of the amplifier 40 using the amplification factor table Ta, and determine the amplification factor of the equalizer 22 using a numerical formula.
Next, the operation control unit 34 sets the amplification factor of the amplifier 40 to the amplification factor determined in step S21 (step S22). The amplifier 40 amplifies the amplitude of the image signal at the amplification factor determined in step S21. After step S22 is executed, the operation control unit 34 instructs the communication unit 32 to transmit an amplification factor signal indicating the amplification factor of the equalizer 22 determined in step S21 (step S23). The communication unit 32 transmits an amplification factor signal indicating the amplification factor of the equalizer 22 determined in step S21 by the operation-side control unit 25 to the communication unit 23 of the operation panel 12 via the communication line Lc. The operation-side control section 25 determines whether or not the communication section 23 receives the magnification signal from the communication section 32 of the control board 11a (step S31). When the operation-side control unit 25 determines that the communication unit 23 has not received the magnification signal (S31: no), it executes step S31 again.
When it is determined that the communication unit 23 has received the amplification factor signal (yes in step S31), the operation-side control unit 25 sets the amplification factor of the equalizer 22 to the amplification factor of the equalizer 22 indicated by the amplification factor signal received by the communication unit 23, that is, the amplification factor of the equalizer 22 determined in step S21 by the operation control unit 34 of the control board 11a (step S32). After step S32, the operation-side control unit 25 ends the process.
After step S23, the operation control unit 34 of the control board 11a executes step S5. In step S5, the operation control unit 34 instructs the signal output unit 31 to output the image signal. As described above, the amplifier 40 outputs the image signal to the equalizer 22 of the operation panel 12 via the transmission line Lg. The equalizer 22 performs signal processing on the image signal output from the amplifier 40 to the equalizer 22 via the transmission line Lg. The equalizer 22 amplifies the amplitude of the image signal at the amplification factor set in step S32. The equalizer 22 outputs the image signal subjected to the signal processing to the display unit 20. The display unit 20 displays an image of the image signal output from the equalizer 22. The operation control unit 34 ends the process after executing step S5.
In the machine tool 1 of embodiment 2, the operation control unit 34 of the control board 11a determines the amplification factors of the amplifier 40 and the equalizer 22 based on the length information B indicating the length of the transmission line Lg. After fixing the control board 11a and the operation board 12 to the outside of the machine tool body 10, the manufacturer of the machine tool 1 writes the length information B into the storage unit 33. Thus, the amplifier 40 and the equalizer 22 amplify the amplitude of the image signal at an appropriate amplification factor.
As another embodiment, as in the other embodiment of embodiment 1, the operation control unit 34 of the control board 11a may determine the amplification factor of the equalizer 22 instead of the operation control unit 25 of the operation board 12. Similarly, the operation control unit 25 of the operation panel 12 may determine the amplification factor of the amplifier 40 instead of the operation control unit 34 of the control panel 11 a. The communication section 32 of the control board 11a transmits the length information B to the communication section 23 of the operation board 12. The operation-side control unit 25 may acquire the length information B received by the communication unit 23, and determine the amplification factor of the amplifier 40 based on the acquired length information B. At this time, the communication unit 23 of the operation panel 12 transmits a signal indicating the amplification factor of the amplifier 40 determined by the operation side control unit 25 to the communication unit 32 of the control panel 11 a. The operation control unit 34 sets the amplification factor of the amplifier 40 to the amplification factor of the amplifier 40 indicated by the signal received by the communication unit 32. When the amplification factor of the amplifier 40 and the amplification factor of the equalizer 22 are determined by the operation-side control unit 25, the operation-side control unit 25 functions as a determination unit. When the operation control unit 34 determines one of the amplification factor of the amplifier 40 and the amplification factor of the equalizer 22 and the other amplification factor is determined by the operation-side control unit 25, the operation control unit 34 and the operation-side control unit 25 function as a determination unit as a whole. In embodiment 2, the storage unit 24 may store the amplification factor table Ta. The number of amplifiers for amplifying the amplitude of the image signal is not limited to 2, but may be 3 or more. An amplifier having a constant amplification factor of the amplitude of the image signal may be provided between the signal output unit 31 and the display unit 20.
Embodiment 3
In embodiment 2, a plurality of amplifiers including the amplifier 40 and the equalizer 22 amplify the amplitude of the image signal. However, the amplifier that amplifies the amplitude of the image signal may be the amplifier 40 alone.
Next, an aspect different from embodiment 2 is described with respect to embodiment 3. Other structures than those described below are common to embodiment 2. The same reference numerals as those of embodiment 2 are given to the constituent parts common to embodiment 2, and the description thereof is omitted.
As shown in fig. 10, the machine tool 1 of embodiment 3 has an operation panel 12b instead of the operation panel 12. The operation panel 12b has other components than the equalizer 22 among the components of the operation panel 12 of embodiment 2. The connection of the operation unit 21, the communication unit 23, the storage unit 24, and the operation-side control unit 25 is the same as in embodiment 2. The display unit 20 of embodiment 3 is connected to the other end of the transmission line Lg. The operation panel 12b functions as a display as in the case of the operation panel 12.
The amplifier 40 of the control board 11a outputs an image signal to the display section 20 via the transmission line Lg. The display section 20 displays an image based on the image signal output from the amplifier 40. The storage section 33 of the control board 11a stores the amplification factor table Tb instead of the amplification factor table Ta. The amplification factor table Tb shows the amplification factors of the amplifiers 40 corresponding to the respective lengths shown in the length columns in the amplification factor columns of the amplifiers 40. The amplification factor table Tb is, for example, a table in which the amplification factor column of the equalizer 22 is removed in fig. 8. The longer the length of the transmission line Lg, the larger the amplification factor of the amplifier 40.
Fig. 11 shows the processing performed by the operation control unit 34 of the control board 11 a. Fig. 11 corresponds to fig. 9. The operator panel 12 does not have an equalizer 22. Therefore, the operation-side control unit 25 of the operation panel 12b does not set the magnification. Part of the steps of the process of embodiment 3 are the same as those of the process of embodiment 2. Therefore, the steps common to those of embodiment 2 are denoted by the same reference numerals as those of embodiment 2, and the description thereof is omitted. Steps S1, S2, S22, and S5 of embodiment 3 are the same as those of embodiment 2.
In step S2 of embodiment 3, the operation control unit 34 acquires the length information B from the storage unit 33 in the same manner as in embodiment 2. Next, the operation control unit 34 determines the amplification factor of the amplifier 40 based on the length of the transmission line Lg indicated by the length information B acquired in step S2 (step S41). In step S41, the operation control unit 34 determines the amplification factor of the amplifier 40 as the amplification factor corresponding to the length indicated by the length information B in the amplification factor table Tb. In the example of fig. 8, when the length information B shows 10m as the length of the transmission line Lg, the operation control unit 34 determines the amplification factor of the amplifier 40 to be 1.6 times. The configuration for determining the amplification factor of the amplifier 40 is not limited to the configuration using the amplification factor table Tb as in embodiment 2. The operation control unit 34 may determine the amplification factor of the amplifier 40 by using the equation in which the length of the transmission line Lg is variable, as in embodiment 2.
The operation control unit 34 sequentially executes steps S22 and S5 after executing step S41. In step S22, the operation control unit 34 sets the amplification factor of the amplifier 40 to the amplification factor determined in step S41. In step S5, the operation control unit 34 instructs the signal output unit 31 to output the image signal. The amplifier 40 amplifies the amplitude of the image signal output from the signal output unit 31 at the amplification factor determined in step S41 by the operation control unit 34. The amplifier 40 outputs the image signal amplified in amplitude to the display unit 20 via the transmission line Lg. The display unit 20 displays an image of the image signal output from the amplifier 40. After step S5, the operation control unit 34 ends the process.
In the machine tool 1 of embodiment 3, the operation control unit 34 of the control board 11a determines the amplification factor by which the amplifier 40 amplifies the signal based on the length information B indicating the length of the transmission line Lg. After fixing the control board 11a and the operation board 12B to the outside of the machine tool body 10, the manufacturer of the machine tool 1 writes the length information B into the storage unit 33. Thereby, the amplifier 40 amplifies the amplitude of the image signal at an appropriate amplification factor.
Alternatively, the operation control unit 25 of the operation panel 12b may determine the amplification factor of the amplifier 40 instead of the operation control unit 34 of the control panel 11 a. In embodiment 3, the storage unit 24 may store the amplification factor table Tb.
Embodiment 4
In embodiment 1, each time the operation control unit 34 of the control board 11 determines that an image signal is output, the operation-side control unit 25 of the operation board 12 sets the magnification at which the equalizer 22 amplifies the image signal. The operation-side control unit 25 may not set the magnification each time the operation control unit 34 determines that the image signal is output. Next, an aspect different from embodiment 1 is described with respect to embodiment 4. Other structures than those described below are common to embodiment 1. Therefore, the same reference numerals as those of embodiment 1 are given to the components common to embodiment 1, and the description thereof is omitted. When comparing embodiment 4 with embodiment 1, the procedure of the process performed by the operation control unit 34 is different.
Fig. 12 shows the processing performed by the operation control unit 34 of the control board 11 and the processing performed by the operation-side control unit 25 of the operation board 12. Fig. 12 corresponds to fig. 5. Part of the steps of the process of embodiment 4 are the same as those of the process of embodiment 1. Therefore, the steps common to those of embodiment 1 are denoted by the same reference numerals as those of embodiment 1, and the description thereof is omitted. The process of embodiment 4 includes step S51.
When determining that the image signal is to be output (yes in step S1), the operation control unit 34 determines whether or not the output of the image signal is the first output after the machine tool 1 is powered on (step S51). When determining that the output of the image signal is the first output (yes in S51), the operation control unit 34 sequentially executes steps S2 to S4. The operation control unit 34 determines the amplification factor by which the equalizer 22 amplifies the signal based on the length information B. The operation-side control unit 25 sets the amplification factor of the equalizer 22 to the amplification factor determined by the operation control unit 34. When it is determined that the output of the image signal is not the first output (S51: no), the operation control unit 34 executes step S5 after executing step S4. The signal output section 31 of the control board 11 outputs an image signal.
As described above, in embodiment 4, when the signal output unit 31 of the control board 11 outputs the image signal for the first time after the machine tool 1 is powered on, the operation control unit 34 determines the amplification factor of the equalizer 22. The operation-side control unit 25 sets the amplification factor of the equalizer 22 to the amplification factor determined by the operation control unit 34. For the output of the second and subsequent image signals, the operation control unit 34 does not determine the amplification factor of the equalizer 22, and the repeated instruction signal output unit 31 outputs the image signal. The equalizer 22 maintains the amplification during the power on of the machine tool 1.
The machine tool 1 of embodiment 4 has the same effects as those of the machine tool 1 of embodiment 1. As another embodiment, the amplification factor of the equalizer 22 may be determined by the operation-side control unit 25 of the operation panel 12, as in the other embodiment of embodiment 1.
In embodiments 2 and 3 and other modes thereof, each time the operation control unit 34 determines that the image signal is to be output, the operation control unit 34 or the operation side control unit 25 determines the amplification factor of one or both of the amplifier 40 and the equalizer 22. However, the timing for determining the amplification factors of the amplifier 40 and the equalizer 22 may be the timing for outputting the image signal for the first time by the signal output unit 31 after the power is turned on in the machine tool 1, as in embodiment 4.
In embodiments 1 to 4, the length information B may be stored in the storage unit 24 instead of the storage unit 33. At this time, the manufacturer writes the length information B to the storage unit 24. The communication between the communication unit 23 and the communication unit 32 may be wireless communication without using the communication line Lc.
Claims (5)
1. In a machine tool (1) in which signal outputters (11, 11 a) for outputting image signals and displays (12, 12 a) for displaying images based on the image signals output by the signal outputters are fixed to the outside of a machine tool main body (10) in which machining is performed, the machine tool (1) is provided with:
a transmission line (Lg) connecting the signal outputter with the display and transmitting the image signal;
an amplifier (22, 40) that amplifies the amplitude of the image signal;
a storage unit (24, 33) that stores length information indicating the length of the transmission line and an amplification factor table (T) indicating a relationship between the length information and an amplification factor at which the amplifier amplifies the transmission line; and
and determining units (25, 34) for determining the amplification factor of the amplifier based on the length information stored in the storage unit and the amplification factor table.
2. A machine tool according to claim 1, wherein,
the number of the amplifiers is 2 or more,
the signal output and the display each have the amplifier,
the determination unit determines an amplification factor of the amplifier included in each of the signal output unit and the display unit.
3. A machine tool according to claim 1 or 2, wherein,
the signal output device has:
the storage unit;
the decision part; and
a transmitting unit (32) for transmitting an amplification factor signal indicating the amplification factor determined by the determining unit,
the display has:
the amplifier;
a receiving unit (23) that receives the amplification factor signal transmitted by the transmitting unit; and
and a setting unit (25) that sets the magnification of the display that is amplified by the amplifier as the magnification indicated by the magnification signal received by the receiving unit.
4. A decision method, the following processing is performed by a computer:
acquiring length information indicating a length of a transmission line (Lg) of a machine tool (1) in which signal outputters (11, 11 a) for outputting image signals and displays (12, 12 b) for displaying images based on the image signals output by the signal outputters are fixed to an outside of a machine tool main body (10) in which machining is performed, and the transmission line for transmitting the image signals connects the signal outputters with the displays; and
an amplification factor related to the amplification of the amplitude of the image signal by the amplifier (22) is determined based on the acquired length information and an amplification factor table (T) indicating a relationship between the length information and the amplification factor by the amplifier (22).
5. A storage medium (Am) is a non-transitory storage medium in which a computer program (Pm) is stored in a readable manner,
the computer program causes a computer to execute:
acquiring length information indicating a length of a transmission line of a machine tool (1) in which signal outputters (11, 11 a) for outputting image signals and displays (12, 12 b) for displaying images based on the image signals output by the signal outputters are fixed to an outside of a machine tool main body (10) in which machining is performed, and the transmission line for transmitting the image signals connects the signal outputters with the displays; and
an amplification factor related to the amplification of the amplitude of the image signal by the amplifier (22) is determined based on the acquired length information and an amplification factor table (T) indicating a relationship between the length information and the amplification factor by the amplifier (22).
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| JP2019055194A JP7070488B2 (en) | 2019-03-22 | 2019-03-22 | Machine tools, decision making methods and computer programs |
| JP2019-055194 | 2019-03-22 |
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| CN111722589A (en) | 2020-09-29 |
| JP2020155027A (en) | 2020-09-24 |
| JP7070488B2 (en) | 2022-05-18 |
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