JPH0126820B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machining area setting device for copying machining.

In copying processing using a copying machine, the copying processing area must be set in some way.
The conventional method is to move a copying tracer and use a limit switch attached to each axis of the processing machine to detect when each axis reaches the boundary of the processing area, or to use a conductive tracer attached to the copying model. It uses a method that electrically detects contact with a tracer, similar to sex tape. In the first method, only a rectangular area can be set, and in the case of a model with a complicated shape, an area that does not require cutting is set and a copying operation is performed, resulting in a lot of wasted time. In the second method, conductive tape must be attached to the copy model and electric wires must be connected.

For complex models, it may be necessary to copy parts that are separated from each other, or to change copying conditions such as the copying direction depending on the part to be machined.
In addition, in the conventional method, only one machining area can be set in one setup, which requires a large number of setups and a large amount of time.

In addition, Japanese Patent Application Laid-open No. 55-54158 discloses that a keyboard 82 with numerical keys for programming is provided on the operation panel, and a copying program is created for each block by pressing various keys on the keyboard to perform preset operations. However, in order to set the copying machining area, it is necessary to operate the coordinate setting key for setting numerical coordinates, so it is difficult to perform copying without knowing the numerical data. The problem is that points on the model cannot be set.

The first object of the present invention is to easily set machining areas of complex shapes such as polygons or slopes for which numerical data cannot be determined. A third object of the present invention is to enable the setting of machining conditions when setting a machining area of a shape, and a third object of the present invention is to enable simultaneous setting of multiple machining areas of complex shapes for which numerical data is not known. The fourth purpose of the present invention is to make it possible to set machining conditions for each of a plurality of machining regions of complex shapes for which numerical data is not known.

According to the first object of the present invention, there is provided a position detector for detecting the respective positions of at least two of the three axes of the machine body, a video camera installed on the model, and an image processing device. a CRT for displaying the shape of the model, a data input means comprising a light pen for setting a machining area on the display screen of the CRT, a signal receiving means for receiving a signal from the copying control device, and a position detector for the position detector. machine current position detection means for calculating and storing coordinates from a specific origin position of the machine from the signal; processing area setting storage means for setting and storing parameters defining boundaries of the processing area from the data input means; an inside/outside area determining means for calculating and determining whether the machine position is inside or outside the machining area based on a parameter that determines the boundary of the area and the value of the current machine position; sequence determining means for determining whether or not to advance the copying sequence to the next step based on the sequence signal; and sequence advance signal generating means for providing a signal for advancing the copying sequence to the next step to the copying control device based on the result of the sequence determining means; A machining area setting device for copying machining is provided.

According to the above configuration, the data input means includes a video camera installed on the model, a CRT that displays the shape of the model using an image processing device, and a light pen that sets a processing area on the display screen of the CRT. Machining areas with complex shapes such as polygons or slopes can be machined using a CRT without having to operate numerical keys.
Settings can be made by holding a light pen on the screen. That is, by simultaneously projecting on a CRT an image of the model captured by a video camera and a graphic image processed by an image processing device as a processing area that is a combination of the reduced scale of the image and a certain scale, the processing area is created by straight lines, By inputting the graphic position of the graphic image using a light pen and performing calculations from a fixed scale to create actual position data, a processing area with a complex shape for which numerical data cannot be determined is set. .

According to a second object of the present invention, in addition to the configuration of the first invention, there is further provided a copying condition setting storage means for setting and storing copying conditions from the data input means, and a copying condition setting storage means for setting and storing copying conditions from the data input means, and copying conditions according to the stored copying conditions. A machining area setting device for copying machining is provided, which includes a copying condition signal generating means for supplying a copying condition signal to a control device. According to the configuration of the second invention, machining conditions such as the pick feed direction, copying speed, and copying direction are set using the light pen in the data input means, and a machining area of a complex shape whose numerical data is not known is set. It becomes possible to set the processing conditions in .

According to a third object of the present invention, in addition to the configuration of the first invention, there is provided a machining order setting storage means for setting and storing an order for copying and machining a plurality of machining areas from the data input means; A machining area selection means that selects a machining area from the machining order and a sequence signal from the profiling control device, and a parameter for the next machining area selected by a sequence signal from the profiling control device indicating that profiling machining of one area has been completed. and a jump feed determination means that determines whether to advance the machine to the starting point of copying machining in the next machining area based on the value of the current machine position, and a feed signal generator that transmits a feed signal for each axis to the copying control device based on the above feed determination result. A machining area setting device for copying machining is provided. According to the configuration of this third invention,
Using the light pen of the data input means, two or more machining areas of complex shapes whose numerical data are not known are simultaneously set, including the order of copy machining, and are stored in the machining order storage means. It becomes possible to set the area.

According to a fourth object of the present invention, in addition to the configuration of the first invention, there is further provided a copying condition setting storage means for setting and storing copying conditions from the data input means, and copying conditions according to the stored copying conditions. a copying condition signal generation means for supplying a copying condition signal to a control device; a machining order setting storage means for setting and storing an order for copying a plurality of machining areas from the data input means; and a memorized machining order and a copying control device. A machining area selection means that selects a machining area from a sequence signal, and a sequence signal from a profiling control device indicating that profiling machining of one area has been completed,
A jump feed determination means determines whether to advance the machine to the starting point for copying in the next machining area based on the selected parameters of the next machining area and the current machine position value, and a jump feed determination means determines whether to advance the machine to the starting point for copying in the next machining area. a feed signal generation means for transmitting an axis feed signal; a copying condition selection table setting storage means for setting and storing a copying condition selection table for selecting copying conditions corresponding to a plurality of machining areas from the data input means; and the copying conditions described above. A machining area setting storage means for copying machining is provided, which includes a selection table and a copying condition selection means for selecting copying machining conditions according to the selected machining area. According to the configuration of the fourth invention, the light pen in the data input means sets the machining conditions for each of a large number of machining areas of a complex shape for which numerical data is not known, and the plurality of copying machining areas are each processed differently. Copy processing can be performed under certain conditions.

FIG. 1 is an overall configuration diagram for clearly showing the configuration of the present invention.

Movement of the X-axis and Y-axis is detected by position detectors 1 and 2, and the current positions of the X-axis and Y-axis with respect to the machine origin are calculated and stored by machine current position detection means 6 and constantly updated. .

The machining area setting storage means 7 stores the machining area and the X-axis and Y-axis coordinates of the tracing start point. The area inside/outside determining means 8 determines whether the current machine position is within the processing area. The sequence determining means 9 receives the determination result that the object is outside the machining area, and determines that the sequence should proceed if the signal from the copying control device 19 including the copying control panel indicates that the copying operation is in progress. The sequence advance signal generating means 10 generates a sequence advance signal in response to the determination of sequence advance, and causes the copying control device 19 to proceed to the next operation, such as pick feed or copy completion operation.

The copying condition setting storage means 11 stores copying conditions, ie, copying mode, copying direction, copying speed, pick feed amount and direction, etc., and transmits them to the copying control device 19 via the copying condition signal generating means 12.

When a plurality of machining areas are set, the machining order setting storage means 13 stores the order of selecting the machining areas, and the machining area selection means 14 selects the machining area to be used. The machining area selection means 14 selects the next machining area in response to a signal from the profiling control device 19 indicating that the machining in one area is completed, and the jump feed determining means 15 selects the scanning start point of the next machining area. Make a feed judgment to move the machine. The feed signal generating means 16 receives the feed determination and transmits the X-axis and Y-axis feed signals to the copying control device 19.

When different copying conditions are set corresponding to a plurality of machining areas, the selection table is stored in the copying condition selection table setting storage means 17, and the selection table is stored in the copying condition selection table setting storage means 17.
8, the copying conditions corresponding to each machining area are selected.

Various data settings such as processing area settings are performed from the data input means 3.

A copying tracer 20 is coupled to the copying control device 19 and drives an X-axis motor 21, a Y-axis motor 22, and a Z-axis motor 23 to perform normal copying control.

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 2, the table 26 moves back and forth to form an X-axis, and is driven by an X-axis motor 21. The copying tracer 20 and the spindle head 27 move left and right synchronously on a cross rail 28 to form a Y-axis, and are driven by a Y-axis motor 22. The cross rail 28 moves up and down to form a Z axis, and is driven by a Z axis motor 23.
The copying model 24 and the workpiece 25 are connected to the table 26
placed on top. Position detectors 1 and 2 consisting of pulse coders that detect the rotation angles of the X-axis motor 21 and the Y-axis motor 22 are the machine current position detection means 6.
is combined with

The machine current position detection means 6, the data input means 3, and the copying control device 19 are machine control devices (4, 7 to
18) is monitored and controlled by a microcomputer 29.

In the present invention, a video camera 30 is installed on the model 24 to configure the data input means 3 as shown in FIG. both
It is displayed on the CRT 32, and the processing area can be set using the light pen 5. Here, the processing area displayed on the CRT 32 is simultaneously displayed as a graphic image obtained by combining the reduced scale and a certain scale with the image of the model 24 captured by the video camera 30, and the processing area is represented by a straight line, circular arc, etc. The graphical position of the processing area is input to the light pen 5, and calculations are performed from a fixed scale to create actual positional data.

Further, copy processing condition data is also set by instructing an item input section outside the graphic image on the screen of the CRT 32 using the data input means 3. The copying machining condition data is set by setting the copying speed, axis for copying, pick feed amount, etc. for each machining area when performing copying machining.

An embodiment of the area inside/outside determining means 8 will be described. The copy processing area is set as a polygon separated by straight lines on the X-Y plane. A region with a concave portion is set as a set of a plurality of partial regions consisting only of convex portions. The boundary line of each partial area is determined by a group of straight lines that circle the area clockwise.

This will be explained using the example shown in FIG. The origin (0, 0) of the X-Y coordinates is the machine origin. The processing area is f ₁ , f ₂
…It is an area separated by seven straight lines up to f ₇ ,
This is an area with a recess. This region is divided into partial regions g ₁ and g ₂ consisting only of the convex portions.

When the machine's current position (x, y) faces the direction of movement of the straight line f ₁ passing through the starting point (x ₁ , y ₁ ) and the ending point (x ₂ , y ₂ ), whether it is on the right or left hand is determined by the following formula F ₁ ( The value of X, Y)=(Y ₂ -Y ₁ )(XX ₁ )−(X ₂ -X ₁ )(YY ₂ ) is determined as positive or negative.

Therefore, if the machine current position (x, y) is on the right side for all four straight lines f ₁ , f ₂ , fg ₁₂ , and f ₇ , it can be determined that the machine is within the partial region g ₁ .

FIG. 4 shows the data of the machining area and the X-axis and Y-axis coordinates of the tracing start point stored in the machining area setting storage means 7. The processing order of each processing area is controlled by the area number. The determination of whether the area is inside or outside the area is executed separately for the partial areas g ₁ and g ₂ according to the flowchart shown in FIG.

As explained above, the machining area setting device of the present invention includes a position detector that detects the positions of at least two of the three axes of the machine body, a video camera installed on the model, and an image processing device. a CRT that displays the shape of the model;
data input means consisting of a light pen for setting a machining area on the display screen of the CRT; signal receiving means for receiving signals from the copying control device; machine current position detection means for calculating and storing coordinates; processing area setting storage means for setting and storing parameters for determining the boundaries of the processing area from the data input means; and parameters for determining the boundaries for the processing area and the current position of the machine. an inside/outside area determining means for calculating and determining whether the machine position is inside or outside the machining area based on the value of , and whether to proceed to the next copying sequence based on the result of the area inside/outside determining means and a sequence signal of the copying control device. a sequence determining means for determining whether or not the copying sequence has been processed; and a sequence advance signal generating means for supplying a signal to the copying control device to advance the copying sequence to the next step based on the result of the sequence determining means;
This has the excellent effect of making it possible to extremely easily and conveniently set a machining area with a complex shape that matches the shape of a copying model for which numerical data is not known, without having to move the copying tracer. There is.

Further, the second invention further includes a copying condition setting storage means for setting and storing copying conditions from the data input means, and a copying condition signal generating means for supplying a copying condition signal to the copying control device according to the stored copying conditions. , it is possible to set machining conditions that match the machining part in the machining area setting.

Further, in addition to the configuration of the first invention, a third invention includes a machining order setting storage means for setting and storing an order for copying and machining a plurality of machining areas from the data input means, and a machining order setting storage means for setting and storing a copying order for a plurality of machining areas, A machining area selection means selects a machining area from a sequence signal from a control device, and a sequence signal from the profiling control device indicates that profiling machining of one area has been completed.
A jump feed determination means determines whether to advance the machine to the starting point for copying in the next machining area based on the selected parameters of the next machining area and the current machine position value, and a jump feed determination means determines whether to advance the machine to the starting point for copying in the next machining area. Since it is equipped with a feed signal generation means that transmits the feed signal of the axis, it is possible to set multiple machining areas with complex shapes for which numerical data is not known, and multiple machining areas can be processed according to the set machining order. Copy processing for each area is possible.

Further, a fourth invention provides a copying condition selection table setting storage means for setting and storing a copying condition selection table for selecting copying conditions corresponding to a plurality of machining areas from the data input means, and a copying condition selection table setting storage means for selecting the copying condition selection table. Since the apparatus includes a copying condition selection means for selecting copying processing conditions depending on the processed processing area, different processing conditions can be set for each of the plurality of processing areas.

In addition, since the present invention displays both the machining area and the model shape as graphic images on the CRT display screen, points on the model whose numerical data is not known can be
An excellent effect is that the processing area can be set extremely easily and conveniently by inputting information on the CRT display screen using a light pen.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of the present invention, Fig. 2 is an explanatory diagram of an embodiment, Fig. 3 is a drawing showing an example of a processing area, Fig. 4 is a drawing showing an example of stored data of a set processing area, FIG. 5 is a flowchart showing an embodiment of the area inside/outside determining means. 1... X-axis position detector, 2... Y-axis position detector, 3... Data input means, 4... Signal receiving means, 5... Light pen, 6... Machine current position detection means, 7... Processing area setting storage means, 8...Area inside/outside judgment means, 9...Sequence judgment means, 10
... Sequence advance signal generation means, 11 ... Copying condition setting storage means, 12 ... Copying condition signal generation means, 13 ... Machining order setting storage means, 14 ... Machining area selection means, 15 ... Jump feed determination means , 16... sending signal generation means, 17... copying condition selection table setting storage means, 18... copying condition selection means, 19... copying control device, 20... copying tracer, 24... model, 30... video camera, 3
1... Image processing device, 32... CRT.

Claims (1)

[Scope of Claims] 1. In a copying machine tool consisting of a copying control device that copies a model shape using a copy tracer and simultaneously operates the machine body in three axes in response to the movement, and a machine body that performs cutting, (a) 3 above. (b) position detectors 1 and 2 for detecting the positions of at least two of the axes; and (b) a video camera 30 installed on the model 24.
, a CRT 32 that displays the shape of the model 24 using an image processing device 31, a data input means 3 consisting of a light pen 5 that sets a processing area on the display screen of the CRT 32, and (c) a signal from the copying control device 19. (d) machine current position detecting means 6 which calculates and stores coordinates from a specific origin position of the machine from the signals of the position detectors 1 and 2; and (e) the data input means 3. and (f) a machining area setting storage means 7 in which parameters for determining the boundaries of the machining area are set and stored; (g) a sequence determining means 9 that determines whether or not to proceed with the scanning sequence to the next step based on the result of the area inside/outside determining section 8 and the sequence signal of the scanning control device 19; and (h) a sequence advance signal generating means 10 for supplying a signal for advancing the copying sequence to the next time to a copying control device 19 based on the result of the sequence determining means 9. 2. In a copying machine tool consisting of a copying control device that copies a model shape using a copy tracer and simultaneously operates the machine body on three axes in response to the movement, and a machine body that performs cutting, (a) at least two of the three axes mentioned above; , position detectors 1 and 2 detecting their respective positions, and (b) a video camera 30 installed on the model 24.
, a CRT 32 that displays the shape of the model 24 using an image processing device 31, a data input means 3 consisting of a light pen 5 that sets a processing area on the display screen of the CRT 32, and (c) a signal from the copying control device 19. (d) machine current position detecting means 6 which calculates and stores coordinates from a specific origin position of the machine from the signals of the position detectors 1 and 2; and (e) the data input means 3. and (f) a machining area setting storage means 7 in which parameters for determining the boundaries of the machining area are set and stored; (g) a sequence determining means 9 that determines whether or not to proceed with the scanning sequence to the next step based on the result of the area inside/outside determining section 8 and the sequence signal of the scanning control device 19; and (h) sequence advance signal generating means 10 which gives a signal to the copying control device 19 to advance the copying sequence to the next step based on the result of the sequence determining means 9, and (i) copying processing conditions are set from the data input means 3. and (j) a copying control device 19 according to the stored copying conditions.
A machining area setting device for copying machining, comprising a copying condition signal generating means 12 for providing a copying condition signal. 3. In a copying machine tool consisting of a copying control device that copies a model shape using a copy tracer and simultaneously operates three axes of the machine body in response to the movement, and a machine body that performs cutting, (a) at least two of the three axes mentioned above; , position detectors 1 and 2 detecting their respective positions, and (b) a video camera 30 installed on the model 24.
, a CRT 32 that displays the shape of the model 24 using an image processing device 31, a data input means 3 consisting of a light pen 5 that sets a processing area on the display screen of the CRT 32, and (c) a signal from the copying control device 19. (d) machine current position detecting means 6 which calculates and stores coordinates from a specific origin position of the machine from the signals of the position detectors 1 and 2; and (e) the data input means 3. and (f) a machining area setting storage means 7 in which parameters for determining the boundaries of the machining area are set and stored; (g) a sequence determining means 9 that determines whether or not to proceed with the scanning sequence to the next step based on the result of the area inside/outside determining section 8 and the sequence signal of the scanning control device 19; and (h) a sequence advance signal generating means 10 for giving a signal to the copying control device 19 to advance the copying sequence to the next step based on the result of the sequence determining means 9; and (k) copying a plurality of machining areas from the data input means 3. machining order setting storage means 13 for setting and storing the machining order; (l) machining area selection means 14 for selecting a machining area from the memorized machining order and the sequence signal of the copying control device 19; In response to a sequence signal from the copying control device 19 indicating that copying processing has been completed, it is determined from the parameters of the selected next processing area and the value of the current machine position that the machine should be advanced to the starting point of copying processing in the next processing area. Jump feed determination means 15 and (n) copying control device 1 based on the above feed determination results.
9 and a feed signal generating means 16 for transmitting feed signals for each axis. 4. In a copying machine tool consisting of a copying control device that copies a model shape using a copy tracer and simultaneously operates the machine body on three axes in response to the movement, and a machine body that performs cutting, (a) at least two of the three axes mentioned above; , position detectors 1 and 2 detecting their respective positions, and (b) a video camera 30 installed on the model 24.
, a CRT 32 that displays the shape of the model 24 using an image processing device 31, a data input means 3 consisting of a light pen 5 that sets a processing area on the display screen of the CRT 32, and (c) a signal from the copying control device 19. (d) machine current position detecting means 6 which calculates and stores coordinates from a specific origin position of the machine from the signals of the position detectors 1 and 2; and (e) the data input means 3. and (f) a machining area setting storage means 7 in which parameters for determining the boundaries of the machining area are set and stored; (g) a sequence determining means 9 that determines whether or not to proceed with the scanning sequence to the next step based on the result of the area inside/outside determining section 8 and the sequence signal of the scanning control device 19; and (h) sequence advance signal generating means 10 which gives a signal to the copying control device 19 to advance the copying sequence to the next step based on the result of the sequence determining means 9, and (i) copying processing conditions are set from the data input means 3. and (j) a copying control device 19 according to the stored copying conditions.
(k) a machining order setting storage means 13 for setting and storing the order of machining a plurality of machining areas from the data input means 3; and (l) a memorized machining process. (m) A machining area selection means 14 selects a machining area from the order and a sequence signal from the profiling control device 19; jump feed determination means 15 for determining whether to advance the machine to the starting point for copying in the next machining area based on the parameters of the machining area and the current machine position; and (n) the copying control device 1 based on the above feed determination results.
(o) a scanning condition selection table setting memory for setting and storing a scanning condition selection table for selecting scanning conditions corresponding to a plurality of machining areas from the data input means 3; Means 1
(7) and (p) a machining area setting device for copying machining, comprising the above-mentioned copying condition selection table and a copying condition selection means 18 for selecting a copying machining condition according to the selected machining area.