JP4238528B2 - Cutting path warning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an NC machine tool having an NC device that outputs a control signal to a machine tool based on a program.
[0002]
[Prior art]
FIG. 2 is a diagram showing, as a conventional cutting path warning device, how the operator monitors the movement of the NC machine tool in the initial operation of the program, particularly the current attention behavior regarding cutting feed.
[0003]
In the figure, 1 is a conventional cutting path warning device, 2 is a machine tool that performs processing using a tool, and 3 is an operator who operates the machine tool. Further, 4 is an NC device that outputs a control signal to the machine tool 2, and 5 is a program for causing the NC device 4 to output a control signal. In the cutting path notice device 1, 6 is a program extractor that extracts the execution status of the program 5, 7 is a current coordinate value extractor that extracts the current coordinate value of the tool tip in the machine tool 2, and 8 is a program extractor 6. And the output of the current coordinate value extractor 7 and display the status of the machine tool 2 to the operator 3.
[0004]
Next, the operation of the conventional cutting path notification device will be described. The program extractor 6 extracts a program being executed by the NC device 4, and the NC monitor 8 displays the execution status to an operator. Here, as a specific program display method, a program command statement is used. Of these characters, the currently executed line is highlighted and the part before and after it is scrolled. Also, the display of the current coordinate value of the tool tip position extracted by the current coordinate value extractor 7 is often a numerical display of each component of the coordinate system.
[0005]
In the first operation of the program, the worker 3 often selects a mode called single step. In this mode, whenever the movement of the tool stops, it is possible to proceed with the execution by pressing the cycle start button while confirming what path the tool will perform next. In the single step mode, the program is executed line by line, and unless the operator 3 presses the cycle start button, the next line is not executed. One line of the program usually corresponds to one of the tool paths. At this time, the operator 3 pays attention to the following two pieces of information on the NC monitor 8 while watching the actual movement of the tool of the machine tool 2.
[0006]
The first is information output by the program extractor 6. The operator 3 reads the content of the line next to the reversed line in this program, first determines whether or not it is a cutting feed, and confirms the movement of the tool described in that line. . And if it is confirmed that it is safe, the cycle start button is pushed.
[0007]
The second is information output from the current coordinate value display 7. The operator 3 reads this numerical value, makes a judgment together with the information of the program read earlier, and confirms the movement of the tool. For cutting feed, the shape and conditions of the work are confirmed. For rapid feed, it is confirmed that there is no contact of the tool with the workpiece or table. If safe, the cycle start button is pushed.
[0008]
[Problems to be solved by the invention]
Since the conventional cutting path notice device is configured as described above, there is a case where an erroneous operation is performed in the confirmation work at the time of the first program operation. For example, in a pass where a tool that has been driven at rapid traverse until then contacts the workpiece first and cutting starts, the actual program does not result in cutting feed, and the operator notices this defect in the confirmation work. Otherwise, the tool will collide with the workpiece at high speed while fast-forwarding. In addition, when the next pass is a cutting feed, it is necessary to check the shape and conditions of the work so that an appropriate work can be achieved, but it is difficult to check these during the first operation. For this reason, the finish may actually be inappropriate. Furthermore, when the next pass is rapid traverse, attention should be paid to the contact of the tool with the workpiece or table, but contact often occurred.
[0009]
The following can be considered as reasons why such an inappropriate finish or erroneous operation occurs. First, when operator 3 is stopped in a single block, the next pass must be confirmed, but the information is not shown directly, and the next pass The information that must be confirmed depends on whether the feed is cutting or fast-feeding, but that information is not explicitly shown. Secondly, the confirmation items for the next path can only be obtained from what is actually shown by some kind of interpretation or calculation, and are not intuitive. Thirdly, the information that should be known for the confirmation of the next pass is that it is displayed at a position spatially separated from the position where the tool is operating.
[0010]
The present invention has been made to solve the above-described problems, and information on the next path is explicitly and intuitively displayed or displayed in a spatially close position from the position where the tool is operating. The purpose is that.
[0011]
[Means for Solving the Problems]
The present invention is a cutting path notifying device for notifying a cutting path of a tool in a machine tool for processing a workpiece, a next path information extracting means for extracting next path information from the machine tool, and this next path information. Informing means for informing is provided.
[0012]
According to the present invention, the cutting path notifying device includes a next path trajectory information extracting means for extracting next path trajectory information from the next path information, and the notifying means notifies the next path trajectory information as the next path information. To do.
[0013]
According to the present invention, the cutting path notifying device includes a next path machining condition extracting unit that extracts a next path machining condition from the next path information, and the notification unit reports the next path machining condition as the next path information. To do.
[0014]
Further, the present invention provides the cutting path notifying device, comprising: a cutting feed detecting means for judging whether the next path is a cutting feed or a rapid feed based on the next pass information, and outputting the result as the cutting fast feed information, and the notifying means The cutting rapid feed information is notified together with the next pass information.
[0015]
In the present invention, the notifying means has a screen on which characters can be displayed. The next path information is displayed on the screen as characters, and the character display attribute on the screen is changed based on the cutting fast-forward information. It is.
[0016]
In the present invention, the notification means includes notification sound generating means for generating a notification sound when the next pass is a cutting feed.
[0017]
In the present invention, the notifying means includes a light emitting means for emitting light when the next pass is a cutting feed.
[0018]
In the present invention, the cutting path notice device includes a transmission unit that transmits next path information by a radio signal, and the notification unit includes a reception unit that receives the next path information transmitted from the transmitter. It is configured to be carried separately from the cutting path notice device.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a cutting pass notification device according to an embodiment of the present invention. The description of the same components as those in the conventional example is omitted. In the figure, 9 is a next path information extractor for extracting next path information. Reference numeral 10 denotes a cutting feed detector that determines whether or not the next pass is rapid feed and outputs the result as cutting / fast feed information. 11 is a next path trajectory information extractor for outputting the next path trajectory information, and 12 is a next pass working condition extractor for outputting the next path working conditions. Reference numeral 13 denotes a transmitter that transmits the cutting feed / fast-forward information, the next path trajectory information, and the next path machining conditions as radio wave signals, and 14 is carried by the operator 3 and displays information about the next path. This is an independent part of the cutting path warning device. In the cutting path notifying device independent unit 14, 15 is a receiver that receives the radio signal, and 16 is a notification sound generator that generates a notification sound when the next path requires attention from the operator. is there. Reference numeral 17 denotes a light emitter for notifying the operator of the next pass by light emission when the next pass requires attention, and reference numeral 18 denotes a cutting path warning device independent monitor for displaying detailed information on the next pass. 19 is the next path trajectory information display content for displaying the next path trajectory information, and 20 is the next pass working condition display content for displaying the next path working condition. Finally, reference numeral 21 denotes a display attribute controller for changing attributes such as display characters or background color of the cutting path notice device independent unit monitor 18.
[0020]
Next, the operation of the cutting path notice device in the present embodiment will be described. The operation of the same components as in the conventional example is the same as that in the conventional example, and is omitted. Here, only the operation of the part newly added according to the present embodiment will be described.
[0021]
First, the next path information extractor 9 extracts the next path information from the NC device 4 and outputs it to the cutting feed detection unit 10, the next path trajectory information extraction unit 11, and the next path work condition extraction unit 12. The cutting feed detector 10 determines from the next pass information whether the next pass is cutting feed or fast feed, and outputs the result as cutting / fast feed information. The next path trajectory information extractor 11 outputs information such as a next path start point coordinate value, a next path end point coordinate value, a next path traveling direction, or a next path shape from the next path information as next path trajectory information. . Similarly, the next pass working condition extractor 12 outputs information such as the next pass tool information, the next pass tool rotation speed, or the next pass feed speed as the next pass work condition. The cutting feed / fast-forward information, the next path trajectory information, and the next path machining conditions are sent by the transmitter 13 to the receiver 15 of the cutting path notifying device independent unit monitor 14 as a radio wave signal.
[0022]
The cutting path notifying device independent unit 14 is carried by the worker 3, and notifies information related to the cutting path at hand of the worker 3. That is, the notification sound generator 16 generates a notification sound indicating that the next pass is a cutting feed based on the cutting feed / fast-forward information. The light emitter 17 emits light to indicate that the next pass is a cutting feed based on the cutting feed / fast feed information. Further, the display attribute controller 21 uses the cutting feed / fast-forward information to change attributes such as display characters or background color on a monitor for a cutting path notice device, which will be described later, according to whether the next pass is cutting feed or fast feed. To change.
[0023]
The cutting path notice device independent unit monitor 18 displays the next path trajectory information display content 19 and the next pass work condition display content 20 based on the next pass trajectory information and the next pass working condition received by the receiver 15 from the cutting path notice device. indicate. The next path trajectory information display content 19 includes information such as a next path start point coordinate value, a next path end point coordinate value, a next path traveling direction, or a next path shape. The next pass machining condition display content 20 includes information such as next pass tool information, next pass tool rotation speed, or next pass feed speed. The display attributes of the next path trajectory information display content 19 and the next path work condition display content 20 are appropriately changed by the display attribute controller 21. For example, only information that has changed from the previous pass is displayed in reverse video, or when the next pass tool rotation speed or the next pass feed speed is greater than or equal to a predetermined value, a highlighted method can be considered.
[0024]
In the present embodiment, the cutting path notification device independent unit 14 is provided, and the cutting path notification device independent unit monitor 18 is disposed thereon, and information on the next path is displayed. You may provide in the pass notice apparatus 1 main body. In that case, the notification sound generator 16 and the light emitter 17 may be provided in the main body of the cutting path notice device 1.
[0025]
As described above, in the present embodiment, since the next path information is extracted from the NC apparatus main body and displayed, information related to the next path can be directly confirmed when stopping in a single block. .
[0026]
In addition, the cutting / fast-forward information is extracted from the next path information, and the information is notified through the notification sound generator 16 and the light emitter 17, and the display attribute controller 21 changes the display attribute on the cutting path warning device independent unit monitor 18. By doing so, the operator 3 is cautioned, so it can be intuitively identified whether the next pass is cutting / fast-forwarding.
[0027]
In addition, by providing the cutting path notifying device independent part 14 and making it portable, the operator 3 can carry the machine tool in a place where it is easy to work or where the state inside the machine tool is easy to check. Thus, the above-described series of information can be obtained at a location spatially close to the position where the tool is operating.
[0028]
【The invention's effect】
Since the present invention includes the next path information extracting means for extracting the next path information from the machine tool and the notifying means for informing the next path information, information relating to the next path can be explicitly shown to the worker. And the operator can intuitively recognize the information on the next path.
[0029]
In addition, since the present invention includes the next path trajectory information extracting means for extracting the next path trajectory information from the next path information, it is determined whether or not contact of the tool with the workpiece or the table occurs in the next path confirmation work in the single block. Can be intuitively identified.
[0030]
In addition, since the present invention includes a next path machining condition extracting means for extracting a next path machining condition from the next path information, the path in which the tool moves at high speed is intuitively confirmed in advance in the next path confirmation work in a single block. It has the effect that it becomes possible to do.
[0031]
The present invention further comprises a cutting feed detecting means for determining whether the next pass is a cutting feed or a rapid feed based on the next pass information and outputting the result as a cutting fast feed information, and the notifying means provides the cutting fast feed information as the cutting fast feed information. Since the notification is made together with the next path information, it is possible to call the operator's attention to cutting feed and rapid feed with particular attention in the next path confirmation work in the single block.
[0032]
Further, according to the present invention, the notifying means has a screen capable of displaying characters, and displays the next path information on the screen, and changes the character display attribute on the screen based on the cutting fast-forward information. Therefore, in the next pass confirmation work in the single block, the processing contents of the next pass can be accurately grasped, and the operator can be alerted especially when the next pass is cutting or fast-forwarding.
[0033]
In the present invention, the notification means includes notification sound generating means for generating a notification sound when the next pass is a cutting feed. It has the effect of being able to call attention.
[0034]
In addition, the present invention has an effect that the notifying means includes a light emitting means that emits light when the next pass is a cutting feed, so that the operator's attention can be intuitively urged by the light emission.
[0035]
Further, the present invention includes a transmission unit that transmits next path information by a radio signal, and the notification unit includes a reception unit that receives the next path information transmitted from the transmitter, and is separated from the cutting path notice device. Thus, the operator can carry the notification means, and it is possible to confirm the next path information from a position where it is easy to confirm the operation of the tool.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an embodiment of the present invention.
FIG. 2 is a configuration diagram of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cutting path notice apparatus 2 Machine tool 3 Worker 4 NC apparatus 5 Program 6 Program extractor 7 Current coordinate extractor 8 NC monitor 9 Next path information extractor 10 Cutting feed detector 11 Next path trajectory information extractor 12 Next path machine Condition extractor 13 Transmitter 14 Cutting path notice device independent part monitor 15 Receiver 16 Notification sound generator 17 Light emitter 18 Cutting path notice apparatus independent part monitor 19 Next path trajectory information display contents 20 Next path machining condition display contents 21 Display attributes Controller

Claims (6)

Feed speed information including a speed of fast feed at which a cutting tool for cutting a workpiece is sent to a cutting position, and a speed of cutting feed for the cutting tool to cut the workpiece, and all from the rapid feed to the cutting feed from among the plurality of paths information including respective start and end points and the and the track information formed by the traveling direction of the feed step, the extracts the following path information in the following feed step of the cutting tool is then sent Next path information extraction means,
A next pass machining condition extracting means for extracting a next pass machining condition for controlling a cutting operation of the cutting tool for cutting the workpiece by the cutting feed from the next path information extracted by the next path information extracting means; ,
Portable notification means for receiving the next path machining condition extracted by the next path machining condition extraction means by radio signal and notifying the operator of the next path machining condition before the next feeding step ; Cutting path notice device characterized by that. From the following path information extracted by the following path information extracting unit, comprising the following path trajectory information extraction means for the next path trajectory information by extracting the track information,
2. The cutting path notifying device according to claim 1, wherein the notifying means notifies the operator of the next path trajectory information. Based on the feed rate information of the next path information extracted by the following path information extracting means, the cutting-feed detecting means for the next feed step, it is determined whether the fast-forward or cutting feed, and outputs the result as a cutting fast-forward information Prepared,
The cutting path notice device according to claim 1, wherein the notification means notifies the cutting fast-forward information to an operator. The notification means includes a capable character display screen, the next path information extracted by the following path information extracting unit to the screen with characters displayed, on the basis of the cutting fast-forward information on the screen 4. The cutting path notice device according to claim 3, wherein the character display attribute is changed. 4. The cutting path notifying device according to claim 3, wherein the notifying means includes notifying sound generating means for generating a notifying sound when the next feeding step is cutting feed. 4. The cutting path notifying device according to claim 3, wherein the notifying means comprises a light emitting means for emitting light when the next feeding process is a cutting feed.

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