JP3359076B2 - Tool path data automatic connection device and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD / CAM system and the like which uses, for example, a design drawing of a workpiece to create tool path (CL) data to be given to an NC machine tool such as an NC milling machine or a machining center. For automatic connection of tool path data for the system.

[0002]

2. Description of the Related Art Conventionally, in CL data creation processing,
Batch processing CL data for cutting the batch processing area along multiple lines, contour processing C for cutting the contour
CL data connection processing such as connection of CL data such as L data or calculation of a processing start point of a field (processed surface) is performed using an automatic programming system or the like.
A person grasps the design drawing of the work, avoids interference between the tool and the work, and sets the C
L data was concatenated.

[0003]

As described above, conventionally,
The CL data linking process was performed manually, but the CL data linking process was performed, such as grasping the design drawing of the workpiece, avoiding tool interference, and shortening the machining time. In order to optimize the connection, the skilled technique and enormous amount of time are required for a complicated shape, and in some cases, there is a problem in that CL data is generated that requires a long processing time.

The present invention has been made under such circumstances, and an object of the present invention is to provide an automatic tool path data connecting apparatus capable of automatically connecting CL data in an optimal form.

[0005]

In order to achieve the above object, an automatic tool path data connecting device according to a first aspect of the present invention includes:
Regarding a plurality of first tool path data for individually and collectively processing a plurality of blocks belonging to one processing surface,
First tool path connecting means for connecting the first tool path data to each other, and connecting the second tool path data to a plurality of second tool path data for contour machining belonging to one processing surface. The second tool path connecting means, the tool path data connected by the first tool path connecting means, the tool path data connected by the second tool path connecting means, or the contour processing existing alone Second for
Third tool path connecting means for connecting the tool path data to the second tool path, and the second tool path in an open state belonging to one machining surface
If there is more than one data, two open second tools
Of all combinations of path data,
2nd tool path data end point and the other open second tool
The union that has the longest distance from the start point of the route data
Start of the second tool path data in the other open state related to the
Point for connecting the tool path data on the machining surface
First setting means for setting as a reference point .

In order to achieve the above object, a tool path data automatic coupling device according to a second aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
Tool path connecting means for connecting
A plurality of the second tool path data in the closed state to which the
The second tool path data in the closed state on the outermost peripheral side.
Data at a given point on the machining surface
Second setting means for setting as a reference point for tying.
I have.

To achieve the above object, an automatic tool path data connection device according to a third aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
Tool path connecting means for connecting
Only the first tool path data for collective machining belongs
Line that constitutes any first tool path data
Of the four corner points of the group, the distance to the tool is the shortest,
Any point where line movement is possible and cutting movement is allowed
A reference point for connecting the tool path data on the machining surface;
And third setting means for setting.

In order to achieve the above object, a tool path data automatic connection device according to a fourth aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
Tool path connecting means for connecting
There exist a plurality of the second tool path data in the open state to which the second tool path data belongs.
All of the two open tool path data
Second tool path data of one open state in the combination
And the start point of the second open tool path data
Between the other of the combinations with the longest distance between
The start point of the second tool path data in the open state is
As a reference point for tool path data linkage in
First setting means, and before a closed state belonging to one machining surface
If there are multiple second tool path data, the outermost
A predetermined point on the peripheral side of the second closed tool path data
Reference point for linking tool path data on the machining surface
Second setting means to set as
If only the first tool path data for machining belongs
In the case of the first group of
The distance to the tool is the shortest of the four corner points,
Any point at which cutting movement is possible and cutting movement is allowed
As a reference point for linking tool path data on surface
And third setting means for setting the first setting means> the first setting means.
2 setting means> the tool setting in the order of priority of the third setting means.
Control to set a reference point for road data connection
It has control means.

In order to achieve the above object, an automatic tool path data connection device according to a fifth aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
And third tool path connecting means for connecting
The tool path connecting means of the second
If there is more than one road data,
It is configured to connect the tool path data of 2 together.
Have been.

In order to achieve the above object, a tool path data automatic coupling device according to a sixth aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
And third tool path connecting means for connecting
The tool path connecting means of
In the cutting path where the tool moves in the cutting state,
Of the non-cutting path where the tool moves
Select a path and connect the second tool path data
It is configured as follows.

In order to achieve the above object, a tool path data automatic connection device according to a seventh aspect of the present invention belongs to one machining surface.
To process multiple blocks individually and collectively
The first tool path data of the first tool path data
First tool path connecting means for connecting data with each other, and one
A plurality of second tool path data for contour machining belonging to
Data, the second tool path data is linked to each other.
Second tool path connecting means, and the first tool path connecting means
Tool path data connected by means
Tool path data connected by tool path connecting means,
Is the second tool path data for contour machining that exists alone
And third tool path connecting means for connecting
The tool path connecting means of the cutting, in which the tool moves in the cutting state
Path and the non-cutting path that the tool moves in the non-cutting state
The first tool is selected by selecting the path with the shorter tool movement time.
Connecting tool path data connected by the path connecting means,
Connected tool connected by the second tool path connecting means
Path data or second tool path data that exists alone
It is configured to connect the

To achieve the above object, an automatic tool path data linking device according to an eighth aspect of the present invention provides a tool path data automatic linking device having different machining heights.
Connect tool path data related to the connection belonging to the work surface
And a fourth tool path connecting means.

In order to achieve the above object, in the tool path data automatic connection device according to the ninth invention, the fourth tool path is provided.
The connecting means is located at the shortest distance from the set connecting point.
Tool path data belonging to different machining surfaces
It is configured as follows.

According to a tenth aspect of the present invention, there is provided an automatic tool path data linking device, comprising:
Path connecting means, second tool path connecting means, third tool path
The path connecting means includes tool path data to be connected next and
Perform connection while sequentially setting connection points indicating connection positions
It is configured as follows.

[0015] To achieve the above object, a tool path data an automatic coupling device according to the eleventh invention, the first tool through
Path connecting means, second tool path connecting means, third tool path
The connecting means moves from the set connecting point in the shortest time.
Movable first tool path data, second tool path data
Data and tool path data related to connection
It is configured as follows.

[0016] To achieve the above object, a tool path data an automatic coupling device according to the twelfth invention, the first tool through
When the road connection means is connected along a straight path, tool interference occurs.
In such a case, the connection should be performed on a route that avoids tool interference.
Is configured.

In order to achieve the above object, a thirteenth aspect of the present invention provides the automatic tool path data linking apparatus, wherein the first tool
The path connecting means is located ahead of the second tool path connecting means.
Is configured to perform the connection processing.

To achieve the above object, a fourteenth aspect of the present invention
Tool path data automatic linking device
For each lock, process the batch processing block.
Points at the four corners of a line group that constitutes tool path data for
Of which, the distance to the tool is the shortest and cutting movement is allowed
If there is a point to be processed,
Setting means for setting as a processing start point candidate and a predetermined reference
Tool path data for each batch machining block from point
When linking, the processing set by the setting means is performed.
Connect the batch machining block with the candidate for the machining start point last
Batch processing block connecting means, and the batch processing block
Connected tool path data connected by connecting means in reverse order
Output as tool path data during actual machining
Output means.

To achieve the above object, a fifteenth aspect of the present invention provides
The tool path data automatic coupling device according to
Batch machining block in which the machining start point candidate is set
If it does not exist, there is a second output means for outputting that effect.
are doing.

[0020]

In the first invention, the first tool path connecting means includes:
Multiple blocks belonging to one machining surface are individually and collectively
For a plurality of first tool path data for machining,
The first tool path data are connected to each other, and the second
The road connecting means includes a plurality of contour processing units belonging to one processing surface.
For the second tool path data of the second tool path
The third tool path connecting means connects the data with each other,
Tool path data connected by the first tool path connecting means
And a process connected by the second tool path connecting means.
Tool path data or a second existing contour machining
Is linked with the tool path data. And the first setting hand
The step is an open state second tool thread belonging to one machining surface.
When there are a plurality of road data, the second
Of all combinations of tool path data,
The end point of the second tool path data and the second
That have the longest distance from the starting point of the tool path data
Of the second tool path data in the other open state related to the
Start point is for connecting tool path data on the machining surface
Set as a reference point for.

In the second invention, the first, second, and third tool paths
The connecting means operates in the same manner as in the first invention. And the second
The second setting means is a closed state belonging to one processing surface.
If there is a plurality of tool path data, the outermost side
Of the second tool path data in the closed state
As a reference point for connecting the tool path data on the machining surface
To set.

In the third invention, the first, second, and third tool paths are provided.
The connecting means operates in the same manner as in the first invention. And the second
The setting means of (3) is the first processing means for batch processing on one processing surface.
If only the tool path data of the first
Of the four corner points of the line group that composes the tool path data,
The distance to the tool is the shortest, linear movement of the tool is possible, and
Any point where cutting movement is allowed is determined by the tool on the machining surface
Set as a reference point for linking route data.

In the fourth invention, the first, second and third tool paths
The connecting means and the first, second, and third setting means include the first, second, and third setting means.
It works in the same way as the third invention. And the control means includes:
Setting means> second setting means> priority order of third setting means
A reference point for linking the tool path data
Control.

In the fifth invention, the first, second, and third tool paths
The connecting means operates in the same manner as in the first invention. At this time,
The second tool path connecting means is an open state of the second tool
If there is more than one route data,
The second tool path data are connected together.

In the sixth invention, the first, second, and third tool paths
The connecting means operates in the same manner as in the first invention. At this time,
The tool path connecting means 2 is a tool path connecting means where the tool can be lowered.
The cutting path that the tool moves in the cutting state and the non-cutting state
Tool movement time is short in the non-cutting path where the tool moves
To connect the second tool path data
You.

In the seventh invention, the first, second and third tool paths
The connecting means operates in the same manner as in the first invention. At this time,
The tool path connecting means 3 is a cutting tool for moving a tool in a cutting state.
Between the cutting path and the non-cutting path where the tool moves in the non-cutting state.
First, select the route with the shorter tool movement time and
Tool path data connected by tool path connecting means
And the connection connected by the second tool path connection means.
Tool path data, or a second tool path that exists alone
Concatenate with data.

[0027] The fourth tool path connecting means of the eighth invention is characterized in that:
Tool path data for connections belonging to machining surfaces with different machining heights
Data.

The fourth tool path connecting means of the ninth invention.
Is the machining surface located at the shortest distance from the set connection point
Are sequentially connected. Also,
In the tenth aspect, the first tool path connecting means and the second tool
The path connecting means and the third tool path connecting means are respectively
A connection point indicating the connection position with the tool path data to be connected to
Perform connection while setting sequentially. In the eleventh invention,
A first tool path connecting means, a second tool path connecting means,
The tool path connecting means of 3 is from the set connecting point
The first tool path data that can be moved in the shortest time;
Tool path data and tool path data for connection
I will tie it. In the twelfth invention, the first tool path
When the connecting means is connected along a straight path, tool interference occurs
In such a case, the connection is performed along a route that avoids tool interference. Ma
In the thirteenth invention, the first tool path connecting means is provided.
Performs connection processing prior to the second tool path connection means.
Do. Further, in the fourteenth aspect, the setting means includes a plurality of ones.
For the batch processing block,
Of the lines that compose the tool path data for machining
Of the four corner points, the distance to the tool is the shortest and the cutting
If there is a point where movement is allowed, this point is
Is set as a machining start point candidate in. And bulk
Machining block connecting means performs each batch machining from a predetermined reference point.
When linking tool path data for blocks sequentially
The machining start point candidate set by the setting means.
The batch processing block to be connected lastly, and the first output means
Are connected by the collective processing block connecting means.
Reverse the tool path data to reverse the tool path during actual machining
Output as data. In the fifteenth aspect, the second aspect
The output means of the processing start point candidate by the setting means
If there is no batch machining block with
Is output.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of an automatic CL data connection apparatus according to one embodiment of the present invention. This CL data automatic connection device performs a tool path (CL) data connection process with the central processing device 1 as a core. The central processing device 1 includes an input device 2 including a keyboard, a mouse, and the like, a semiconductor memory, A storage device 3 composed of a magnetic disk or the like, an input / output control device 4, and a display device 5 composed of a graphic display or the like are connected.
The input / output control device 4 includes an external storage medium 6 including a magnetic tape, a floppy disk, and a magnetic disk.
The NC machine tool 7 is connected, and the input / output control device 4
Outputs the tool path (CL) data connected by the present CL data automatic connection apparatus to the NC machine tool 7 under the control of the central processing unit 1 or various applications for connecting the tool path data from the external storage medium 6 Control such as loading a program into the storage device 3 is performed.

The storage device 3 stores data corresponding to CAD graphic elements (coordinate values of a start point / end point for a two-dimensional line segment, coordinate values of a start point / end point / center for a two-dimensional arc, and a rotation direction,
In the case of a two-dimensional circle, geometric information sufficient to determine a graphic element such as a center coordinate and a radius, and a set and arrangement information of a graphic element, etc.), closed area data obtained by connecting CAD graphic elements to form a closed area, 2.5-dimensional data in which information such as the depth direction such as height is added to the area, tool data such as the shape and use conditions of the machining tool, machining method data such as the machining method, CL data indicating the moving path of the tool, etc. Remember.

A menu is displayed on the display device 5 under the control of the central processing unit 1.
The configuration is such that the CL data linking process can proceed in an interactive manner while being selected and instructed by the input device 2 such as a mouse. At this time, the central processing unit 1 reads the application program selected / instructed by the menu from the external storage medium 6 to the storage device 3 via the input / output control device 4, and executes various CL data connection processing according to the application program. I do.

At this time, the central processing unit 1 similarly stores the above-described graphic data, machining data, tool data, and the like input by the input device 2 in the storage device 3 or in the external storage medium 6. Or save. When the data is stored in the external storage medium 6, the graphic data, machining data, tool data, etc. selected / instructed by the menu are read from the external storage medium 6 to the storage device 3 via the input / output control device 4, and are read. Is displayed on the display device 5 in accordance with the above, and the CL data linking process is performed using these data.

Next, the CL data linking operation will be described with reference to FIGS.
It will be described in detail based on. In addition, CL data connection
As will be apparent from the following description, the operation is sequentially performed from the upper field to the lower field. Here, the field is one processing surface f4 of a set of processing surfaces (surfaces having the same processing height) as indicated by reference numeral f3 in FIG. 7 when processing an area.

FIG. 2 is a general flow chart showing an outline of the CL data linking operation. The central processing unit 1 first executes the last field of interest (the field of interest is a processing to be executed for the CL data linking process from now on). It is determined whether or not the CL data linking process (which means plane) has been completed (step S1). As a result, if it is completed, it means that the CL data linking process has been performed over all the fields, and the process ends.

On the other hand, if the CL data link processing in the last field of interest has not been completed, a field one layer below the field of interest set previously is set as the field of interest (step S2). Then, the editing reference point of the CL data in the set field of interest is calculated (step S3). The calculation of the edit reference point of the CL data is performed as follows. That is, a hatch (line to be a tool path at the time of collective machining) f2 in the collective machining block as indicated by reference numeral f1 in FIG.
Or the state in which the CL data of the contour is calculated (each C
In a state where L data and the like are stored in the internal storage device 3), an edit reference point serving as a reference point for connecting the CL data of the batch processing block and the CL data of the contour is calculated, and is stored in the storage device 3. Store. In this embodiment, the CL data of the batch processing block and the CL data of the contour are processed as if there are 0 or more.

Here, the CL data includes a moving path of the tool,
Means data such as moving speed and tool diameter.
The L data means a set of tool movement paths (hatch, line) indicated by reference numeral f2 in FIG. 3 when processing a certain part (batch processing block) in the area, and the contour CL
The data means the movement path of the tool when cutting the contour of the area.

FIG. 4 is a subroutine showing in detail the process of calculating the CL data editing reference point in step S1 of FIG.

In this subroutine, first, the storage device 3
With reference to the CL data of the contour of the field of interest stored in (1), it is determined whether or not there is an open process in the CL data of the contour (step S31). As a result, if there is an open process in the CL data of the contour, an edit reference point corresponding to the case where there is an open process in the CL data of the contour is calculated (step S32), and the process returns to the general flow of FIG. I do.

The calculation of the editing reference point in step S32 is as follows.
This is performed as follows. That is, in the CL data of the contour of the field of interest, the end point of one open machining CL data and the CL data of the other open machining are obtained for all combinations of two open machining CL data whose end points and start points are close to each other. The distance between the start points is obtained, and the start point side of the combination that is farthest away is set as the editing reference point. In the case of this embodiment, since the process of continuously registering the CL data of two contours in which the start point of the CL data of one contour is close to the end point of the CL data of the other contour is performed in advance, The end point of the contour CL data in the order of registration of the CL data,
The distance from the start point of the next contour CL data may be obtained.

If the result of determination in step S 31 is that there is no open processing, it is determined whether or not there is CL data of a contour that is not open processing (CL data of a normal processing contour) in the CL data of the contour of the field of interest. (Step S33). As a result, the CL of the contour that is not open processing
If there is data, a process for calculating an editing reference point corresponding to the case where there is CL data of a contour that is not open processing is executed (step S34), and the process returns to the general flow of FIG. Specifically, the approach point of the CL data of the contour of the outer peripheral loop is set as the editing reference point.

Here, the open machining refers to machining in which the tool path (CL) is not closed or discontinuous in contour machining. For this reason, the CL data of the open processing is constituted by CL data of one or more contours. In one area, one outer loop and 0
There are more than one inner loop. Further, the approach point of the loop means a point at which the tool starts cutting movement to cut the contour of the loop. In this embodiment, a loop approach point is calculated in advance for each loop.

If the result of determination in step S33 is that there is no CL data for a contour that is not open processing, it is determined whether or not there is CL data for batch processing in the field of interest (step S35). As a result, if there is CL data for batch processing, that is, if there is only CL data for batch processing, calculation of an edit reference point corresponding to the case where there is only CL data for batch processing is executed (step S36). ), And return to the general flow of FIG. In the calculation of the editing reference point in this case, specifically, an appropriate point among the four corner points of the hatch of the appropriate batch processing block is set as the editing reference point. In this embodiment, the upper left points of the four corners of the hatch are set as the editing reference points (point P2 in FIG. 5).

If it is determined in step S35 that there is no CL data for batch processing, that is, if there is neither CL data for batch processing nor CL data for an outline in the field of interest, the process of connecting CL in the field of interest is performed. Exit without doing.

In step S1 of FIG.
When the calculation processing of the editing reference point of the L data is completed, it is determined in step S4 of FIG. 2 whether or not the collectively processed CL data is in the field of interest. As a result, the CL
If there is data, the processing order of the batch processing block is calculated (step S5).

The calculation of the processing order of the batch processing block is as follows.
This is performed according to the flowchart of FIG. The outline of the flow in FIG. 6 will be described first, and then the details will be described.

The processing order of the collective processing block is calculated so that the collective processing block is processed from the processing start point of the field of interest, and finally the editing reference point can be processed in as short a time as possible. In this embodiment, in calculating the processing order of the batch processing block, first, as a preliminary process, in the CL data linking process, a batch processing block that can be processed in a short time from the editing reference point in reverse to the processing order is searched. To go. At this time, the search is performed such that the processing end point of the batch processing block searched last becomes a processing start point candidate of the field. Thereby, the machining start point candidate of the field of the batch machining block searched last becomes the machining start point of the field where the tool can be lowered. Thereafter, the order is reversed to determine the processing order of the collective processing block. CL data and the like calculated in the process of searching for a batch processing block that can be processed in a short time are stored in the storage device 3 and used in subsequent steps.

Here, the processing start point of the field of interest is
As shown at f6 in FIG. 7, it means a point where the tool moves vertically from the previous field or the initial position of the tool, and the tool can be lowered, such as an area of a hole previously drilled for cutting. It is necessary to be within a suitable area.
The machining start point candidate of the field of interest means a point in the area where the tool closest to the four corner points can be lowered for each batch machining block, and is a candidate of the machining start point of the field of interest. When machining a batch machining block having a machining start point candidate in the field, when the tool moves between two points, the tool can be moved over the sky.

In this embodiment, as a tool movement mode between two points, a cutting movement, an air cutting movement, an overhead movement and the like are supported. Here, as shown in FIG. 8A, the cutting movement is to move between two points at a predetermined cutting speed in a cutting state on a field of interest, and if the tool does not interfere with the shape, a straight line is moved. Although it moves, if there is interference, it moves while avoiding interference along the tool center trajectory in which the contour of the machining area is offset inward by the tool radius. In the air cut movement, there is a movement between two points at a field of interest + air cut height at an air cut speed, and the method of avoiding interference is the same as the cutting movement.

As shown in FIG. 8 (b), the over-the-fly movement refers to a fast-forward movement between two points at the maximum height of the shape + the height of the sky. It is not necessary to consider interference when moving over the sky. The values stored in the storage device 3 are referred to for the cutting speed, the air cut height, the air cut speed, the maximum height of the shape, the height above the sky, the rapid traverse, and the like.

Next, the processing start point candidate calculation process for the field of interest in step S51 in FIG. 6 will be described in detail with reference to FIGS.

First, in step S511, it is determined whether or not there remains a collectively processed block for which a process of calculating a processing start point candidate for a field of interest described below has not been performed. As a result, if unprocessed batch processing blocks remain, the processing start point calculation of the noted field focuses on the unprocessed batch processing blocks (step S512). In the present embodiment, attention is paid to the order of registration from the first batch processing block.

Then, for each of the four corner points of the batch processing block of interest, a point on the descent-possible area which is the shortest distance is calculated (step S513). In this calculation, for the focused batch machining block, the end points of the descent-possible areas of the tools located at the shortest distances from the four corners of the hatch of the batch machining block described above are stored in the storage device 3 as the machining start point candidates of the focused field. . The end point of the tool descent area which is the shortest distance from the four corner points of the hatch of the batch machining block is the distance between the CAD graphic element such as the line segment or arc of the boundary of the tool descent area and the four corner points of the hatch. It is determined by calculating the shortest point.

For example, assuming that the hatched portions in FIG. 5 are the tool descent regions, the end points of the tool descent regions located at the shortest distances from the four corner points P1, P2, P3, and P4 are respectively P1 ', P2', P3 ',
P4 '.

Next, with respect to each pair of the point calculated in step 513 and the four corner points of the collective machining block, a discrimination process to be described later as to whether or not the tool can perform cutting movement between the pairs while avoiding interference is performed for all pairs. It is determined whether or not has been completed (step S514). As a result, if the processing has been completed, the process returns to step S511, and it is determined whether or not there remains a batch processing block for which the processing of the processing start point candidate of the field of interest has not been processed. On the other hand, if not completed, attention is paid to the next unprocessed pair (step S515).

Next, between the next unprocessed pair, that is, between one of the four corner points of the hatch and the point of the shortest distance corresponding to that point in the descent range of the tool, the tool It is determined whether or not can perform cutting movement avoiding interference (step S516). As a result, if the tool can perform cutting movement between the pairs while avoiding interference, the point of the shortest distance in which the tool can be lowered is set as a machining start point candidate of the field of interest (step S517). It should be noted that the CL data (f in FIG. 11) of the connection between the pairs calculated in performing this determination.
8) is stored in the storage device 3 and used in subsequent processing.

Here, the case where the tool cannot move by cutting while avoiding interference will be described with reference to the example of FIG. In FIG. 19, the height of the field of interest F is <50>, and the processing height of one of the four corner points PA of the hatch of the batch processing block is also <50.
>, One point PA among the four corner points of the hatch of the batch machining block B and the end point P of the descent-possible area of the tool.
The height (machining height) of the target shape of the portion S between A ′ and A ′ is <
100>. In this case, when the cutting movement is performed between the point PA and the point PA ′, a portion having a processing height of <100> is cut, and the processing is performed into a shape different from the processing target shape. Therefore, cutting movement cannot be performed between the point PA and the point PA ′.

After the processing in step S517, the processing end point is calculated when the processing start point candidate of the field of interest relating to the setting is set as the processing start point of the collective processing block (step 518). At this time, the four corner points of the collective processing block (the hatching element processing start point: f9 in FIG. 11), which are the other end points of the pair, and the collective processing end point (f1 in FIG. 11).
0), machining time, and CL data of batch machining (Fig. 1
The circled number of 1 and f8) and the like are stored in the storage device 3 and used in the processing described later. Thereafter, by returning to step S514, a determination process of determining whether or not the tool can perform the cutting movement while avoiding interference between all pairs is performed. Note that the calculation of the machining end point in step 518 is performed by the C in the batch machining block shown in FIG.
This is performed by executing the L data linking process.

If it is determined in step S516 that the tool cannot move by cutting between the target pair while avoiding interference, the points of the four corners of the collective block in the currently focused pair are processed. The processing end point as the start point is calculated, and the processing start point of the collective processing, the processing end point of the collective processing, the processing time, the CL data of the collective processing (circled numbers in FIG. 11), and the like are stored in the storage device 3. It is stored (step S519) and used in the processing described later. Then, the process returns to step S514.

Next, FIG. 12 shows the processing contents in step S518 in FIG. 10, that is, the processing of calculating the processing end point when the processing start point candidate of the field of interest is set as the processing start point of the batch processing block. CL in batch processing block
This will be described in detail together with the data connection processing.

In the CL data linking process in the collective processing block (processing for calculating the processing end point), first, the processing start point of the hatch element indicated by reference numeral f9 in FIG. ) Are set as the first current position as a starting point for creating a CL for batch machining by connecting the odd numbered circled lines (step S5181). As the hatch element in which the first current position is set, the one closest to the processing start point candidate of the field of interest is selected (FIG. 11).
F9).

Next, CL data for moving from the set current position to the other end on the hatch element (line) where the current position is set is created, and the end point of the CL data (corresponding to the other end) is determined. Update and set as the current position (step S
5182). Then, it is determined whether or not the CL data has been created for all hatch elements in the batch processing block (step S5183).

As a result, if a hatch element for which no CL data has been created remains, the end point of the hatch element having the shortest distance from the current position is found from among the remaining hatch elements, and the end point interferes with the end point. Is generated (step S5184). Then, by returning to step S5182, the CL that moves on the hatch element (line) of the shortest distance from the current position
Create data.

On the other hand, if the CL data has been created for all hatch elements, the end point on the opposite side to the point where the current position of the last created CL data is set, that is, the connected batch processing An end point (f10 in FIG. 11) opposite to the processing start point of the hatch element of the CL data is set as the processing end point of the batch processing block (step S10).
5185), and return to the flow of FIG. 9 and FIG.

If it is determined in step S511 in FIG. 9 that the processing of calculating the processing start point candidate of the field of interest has been performed for all the batch processing blocks on the field of interest, the processing start point candidate of the field of interest is determined. Is determined (step S520). As a result, if there is a machining start point candidate, the process directly returns to the flow in FIG. On the other hand, if there is no machining start point candidate, the symbol f in FIG.
As indicated by 11, a predetermined mark indicating this is displayed at the four corner points of the batch processing block displayed on the display device 5 (step S521), and the process returns to the flow of FIG.

With this display, the operator recognizes that it is not possible to automatically set the machining start point candidate of the collective machining block, that is, the operator cannot lower the tool for machining the collective machining block. The input device 2 instructs the NC machine tool 7 to make a hole for lowering the tool to the collective machining block position, and thereafter, the input device 2 can input the machining start point of the field of interest. If it is determined that there is no machining start point candidate because the hole is drilled but the tool cannot be lowered because the tool is large, a small tool is designated by the input device 2 so that the machining start point candidate of the field of interest is designated. May be set so as to save the trouble of enlarging the hole. Before returning to the flow of FIG. 6, the number of batch processing blocks having the processing start point candidate of the field of interest is set as the initial value of the number of batch processing blocks having the processing start point candidate of the field of interest that has not been connected. Storage device 3
To be stored.

After the above processing is completed and the process returns to the flow of FIG. 6, the C calculated in step S3 of FIG.
The editing reference point of the L data is set as a connection point of interest (step S52 in FIG. 6). At this time, at the same time, whether or not the edit reference point can be lowered is set in the storage device 3 as a descent possible flag of the focused connection point, and is used in the subsequent processing. Here, the connection point of interest means a point serving as a reference for connecting the next batch processing block.

Next, by referring to the CL data of the batch processing stored in the storage device 3, it is determined whether or not there is a batch processing block whose processing order is undetermined (step 53). As a result, if there is a batch processing block whose processing order is undecided, a batch processing block that can be processed in the shortest time from the connection point of interest is searched as a block of the next batch processing to be connected (step S5). When a block of a batch processing having a processing start point candidate of the field of interest is searched for and connected as a block of the batch processing to be connected next, as described later, the processing of the field of the connection unprocessed field is performed each time. The number of blocks of the batch processing having the start point candidates is decremented by one.

In the above-described search processing of the connection target,
As the block of the batch machining to be connected last, the machining start point candidate of the field of interest, that is, the point at which the tool can be lowered becomes the machining end point in the block of the batch machining. The block of the batch machining having the machining start point candidate is selected.

Such a selection method is realized by performing a search process of a batch processing block to be connected next based on the flowchart of FIG.

That is, in FIG. 14, first, referring to the current number of unconnected batch processing blocks having the processing start point candidates of the field stored in the storage device 3 as described above, the processing of the field of interest is performed. It is determined whether there is only one unconnected batch processing block having the start point candidate remaining (step S541). As a result, if there is only one unconnected batch processing block having the processing start point candidate in the field of interest, the connection processing to be performed next is the final connection processing of the batch processing block in the field. It is determined whether or not this is the case (step S542).

As a result, if it is not the final connection processing, a plurality of unconnected batch processing is performed in order to leave a batch processing block having a processing start point candidate of the field of interest as a batch processing block for final connection. Of the blocks, for a batch processing block that does not have a processing start point candidate of the field of interest, referring to the CL data of the batch processing, the connection point of interest, the processing time of the batch processing in the storage device 3, and the like, A search is made for an unconnected batch processing block that can be processed in a short time and set as the next connection target (step S).
543), and returns to the flow of FIG.

On the other hand, if the connection processing to be performed next is the final connection processing of the batch processing block in the field, the processing of the field of interest, which has been left as the last connection processing in step S543, is started. An unconnected batch processing block having a point candidate is searched and set as the next connection target (step S544), and the process returns to the flow of FIG.

If it is determined in step S 541 that there are a plurality of unconnected batch processing blocks having a processing start point candidate of the field of interest, the CL data of the batch processing in the storage device 3, the connection point of interest, Then, by referring to the processing time of the batch processing and the like, a block of the batch processing that can be processed in the shortest time from the target connection point is searched (step S545).
In addition, there are four processing paths as processing paths from the processing start point to the processing end point for one batch processing block.

As a result of such processing, for example, in FIG. 15, blocks E1, E2, and E3 indicated by solid lines are unconnected batch processing blocks having processing start point candidates, and areas E4 and E5 indicated by broken lines. Is an unconnected batch processing block having no processing start point candidate, and assuming that point P is an editing reference point (initial target connection point), step S54
By the process of 5, the batch processing blocks E1, E4, and E2 are connected in the order of the routes L1, L2, and L3.

Then, at the stage of linking to the batch processing block E2, since there is only one unlinked batch processing block E3 having the processing start point candidate, the distance is taken into consideration by the processing of step S543. And block E2 is added to block E2 by path L4.
5 are connected. Then, finally, by the processing of step S544, the unconnected batch processing block E3 having the processing start point candidate is connected by the path L5.

As described above, when the unconnected batch machining block having the machining start point candidate, that is, the batch machining block existing in the area where the tool can descend, is finally linked, the actual machining is linked as described above. (Specifically, CL data is output to the NC machine tool 7 in reverse order via the input / output control device 4), so that when the field is processed, The tool can be lowered from the machining field to the field.

As described above, the reason why the linking process is performed in the reverse order of the actual machining is to make it possible to easily search for the path from the editing reference point to the tool droppable area. , CL data connection processing can be optimized.

Note that the processing time (T) from the connection point of interest to the end of the block of the batch processing is T = <the processing time (T1) from the connection point of interest to the processing end point of the batch processing block.
> + <Processing time of batch processing block (T2)> + <
The processing time (T3) from the processing start point of the collective processing block to the processing start point candidate of the field to which the collective processing block belongs is>, and there is no processing start point candidate of the field corresponding to the processing start point of the collective processing block. In this case, the processing time (T3) is not included in the calculation of the processing time (T) from the connection point of interest to the end of the collective processing block. In this case, the next connection point of interest is the processing start point of the collective processing block.

In the calculation of the processing time, since the next connection target is searched in the reverse order of the actual processing order as described above, in the calculation of the processing time (T1), the connection point of interest is the processing of the field. In the case of a start point candidate, since the tool can be lowered, the calculation is performed assuming that the tool moves over the sky. On the other hand, if the connection point of interest is not a candidate for a machining start point in the field, the tool is assumed to perform cutting movement and the machining time (T
Calculate 1).

FIG. 16 shows the search processing of the block of the collective processing that can be processed in the shortest time from the target connection point in step S545 of FIG. 14. <Processing time (T1) from the target connection point to the processing end point of the collective processing block > Is a flowchart showing in detail a process for obtaining CL data at a connection between two points in calculating>.

In the process of obtaining the CL data of the connection between the two points, first, by referring to the descent possible flag in the storage device 3, the connection point of interest which is the end point of the CL data of the connection exists in the descent area. Is determined (step S54).
51). As a result, if it is within the descendable area, CL data for cutting and moving between the two points is created, and the machining time (T cutting) is calculated (step S5452). Then, CL data that moves over the two points is created, and the processing time (above T) is calculated (step S5453).

Next, regarding the above-mentioned T cutting and T sky, T
It is determined whether or not the cutting is larger than T above (step S5454). As a result, if the T-cut is larger than the T-space and the processing time (the T-space) that moves between two points is shorter, the CL data that moves over the shorter of the processing time is set as the connection CL data. (Step S54
55), and return to the flow of FIG. On the other hand, if the T cut is smaller than the T sky, or if the T cut and the T sky are equal, the CL data to be cut and moved is set as the connecting CL data (step S5456), and the process returns to the flow of FIG. Thus, the reason why the CL data to be cut and moved when the T cutting and the T sky are equal is set as the connecting CL data is that when the tool moves on the connecting CL, the uncut portion is processed by the tool. There is no need to rework the uncut part again,
This is because the entire processing time is reduced.

If it is determined in step S5451 that the connection point of interest, which is the end point of the connecting CL data, does not exist in the descendable area, it means that it is not possible to move in the sky, so the cutting movement is performed between the two points. Is created and set as connection CL data (step S545).
7), and return to the flow of FIG.

After turning to FIG. 14 in this manner, referring to the data of the batch processing block and the like in the storage device 3, the next batch processing block to be connected determined in step S545 is processed in the processing field of interest. It is determined whether or not a start point candidate is included (step S546). As a result, if the batch processing block includes the processing start point candidate of the target processing field, the remaining number of the batch processing block having the processing start point candidate of the target field is decremented by “1” and stored in the storage device 3. Then (step S547), the flow returns to the flow of FIG.

After the helicopter of FIG. 6 has been performed in this way, the CL data for processing the batch processing block created as described above is stored in the storage device 3 as the next connection target (step S55). . Then, the last point of the CL data is set as the next connection point of interest (step S56), the process returns to step S53, and the presence or absence of a batch processing block whose processing order is undetermined is determined again. When it is determined in step S53 that there is no batch processing block whose processing order is undecided, as apparent from the above description,
Since it means that the connection processing of the CL data of the batch processing has been completed, the process returns to the general flow of FIG.

After returning to the general flow of FIG. 2 in this way, the CL data and the like of the collective processing for processing the collective processing block are referred to from the storage device 3, and the processing end point of the previous field, or Creates CL data of the joint from the initial position of the tool to the processing start point of the field of interest, and processes the collective machining block obtained by calculating the machining order of the collective machining block on the joint CL data. The CL data is connected in the reverse order, and stored in the storage device 3 as CL data up to the editing reference point of the field of interest (step S6), and the process proceeds to step S8.

If it is determined in step S4 that there is no CL data for batch machining in the field of interest, the machining end point of the previous field or the initial position of the tool is referred to by referring to the CL data in the storage device 3 or the like. To the processing start point of the field of interest, and creates the CL data as the CL data up to the editing reference point of the field of interest.
(Step S7), and the process proceeds to Step S8.

In step S8, it is determined with reference to the contour CL data stored in the storage device 3 whether or not the field of interest has the contour CL data. as a result,
If there is no CL data of the contour in the field of interest, the process returns to step S2, and it is determined whether or not the connection processing of the CL data has been completed for all layers from the uppermost field to the lowermost field.

On the other hand, if there is a contour CL data in the field of interest, the CL data of the connection from the editing reference point to the contour CL data is referred to by referring to the contour CL data stored in the storage device 3. It is created, linked to the contour CL data, stored in the storage device 3 (step S9), and returns to step S2 to perform the same processing as described above.

In the case of connecting the CL data of the contour, in this embodiment, (1) the CL of the contour which can be moved from the current position in the shortest time
(2) However, the CL data for open machining is linked together in a manner that shortens the tool movement time in principle, by following the CL data of the open machining collectively.

FIG. 17 is a flowchart showing in detail the process of connecting the CL data of the contour. First, the editing reference point is set to the target connection point (step S91). Then, referring to the CL data of the contour in the storage device 3 or the like, it is determined whether or not there is CL data of the contour of the open machining in the field of interest (step S92). As a result, if there is CL data of the contour of the open machining, the C
The L data are linked together and stored in the storage device 3 (step S93), and the process proceeds to step S94. The link in this case is the CL of the open processing closest to the editing reference point.
Open processing CL data is linked in the order registered from the data. Then, the end point of the CL data of the open processing which is finally connected is set as the target connection point.

On the other hand, if there is no CL data of the outline of the open machining, the process skips step S93 and proceeds to step S94. In step S94, the presence or absence of the CL data of the unprocessed contour is determined by referring to the CL data of the contour in the storage device 3 or the like. As a result, if there is CL data of the unprocessed contour, the CL data of the contour closest to the target connection point is searched and connected, and the connected C data is searched.
The L data and the like are stored in the storage device 3, and the end point of the CL data of the connected contour is set as a focused connection point (step S95), and the process returns to step S94 to determine whether there is CL data of an unprocessed contour. . If it is determined in step S94 that there is no unprocessed contour CL data, it means that the concatenation processing of the contour CL data in the field of interest has been completed, and the process returns to the general flow of FIG. I do.

The method of moving the tool between the two points from the focused connection point to the processing start point of the CL data of the contour is as follows.
Since there is a possibility that the shape remains unprocessed on the movement route of the tool between the points, the shorter of the moving time of the cutting movement or the over-the-air movement is set in order to shorten the processing time. In the case other than the machining of the bottom surface after the second time, the method of moving the tool between the two points is to reduce the machining time because no unprocessed shape remains on the tool movement route between the two points. In order to achieve this, it is assumed that the shorter of the moving time is the air cut movement or the sky movement.

FIG. 18 is a flowchart for explaining in detail the tool movement between two points when the CL data of the contour closest to the target connection point is connected in step S95 of FIG.

In this case, first, by referring to the CL data stored in the storage device 3, it is determined whether or not the shape may remain unprocessed on the tool movement route between the two points. Is determined (step S951).

As a result, if there is a possibility that the shape remains unprocessed, as a method of moving the tool between two points, the moving time of the cutting movement or the over-the-air movement is used in order to shorten the moving time. Is set (step S952),
It returns to the flow of FIG.

On the other hand, if there is no possibility that the shape remains unprocessed, the method of moving the tool between the two points is to reduce the moving time, such as air cut movement or air movement, in order to shorten the movement time. Is set (step S95
3), and return to the flow of FIG.

[0099]

As described in detail above, the C of the present invention
According to the L data automatic connection device, C
L data can be concatenated. Therefore, even if CL data for processing into a complicated shape is connected, it is not necessary to spend an enormous amount of time and labor for connecting CL data as in the related art, and the processing time becomes longer. In some cases, the CL data may be created.
Moreover, even a beginner can easily and quickly connect the CL data so as to shorten the processing time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a CL data automatic connection device according to an embodiment of the present invention.

FIG. 2 is a general flowchart showing an outline of an automatic connection operation of CL data.

FIG. 3 is an explanatory diagram of a batch processing block and a hatch.

FIG. 4 is a flowchart showing a setting process of an editing reference point.

FIG. 5 is a diagram for explaining a method of determining a processing start point candidate of a field of interest;

FIG. 6 is a flowchart illustrating a processing order determination process for a batch processing block.

FIG. 7 is a diagram showing an image of CL data connection in batch processing.

FIG. 8 is a diagram for explaining a tool movement mode between two points.

FIG. 9 is a flowchart showing a process of determining a processing start point candidate of a field of interest.

FIG. 10 is a flowchart continued from FIG. 9;

FIG. 11 is a diagram for explaining CL data connection processing in a batch processing block.

FIG. 12 is a flowchart showing a CL data connection process in a batch processing block.

FIG. 13 is a diagram illustrating a display example when a processing start point candidate of a field of interest cannot be automatically set.

FIG. 14 is a flowchart showing a search process for a next batch processing block to be connected;

FIG. 15 is a diagram illustrating an example of a search process of a batch processing block to be connected next;

FIG. 16 is a flowchart showing a tool moving process between two points.

FIG. 17 is a flowchart showing a CL data linking process of a contour.

FIG. 18 is a flowchart showing a tool moving process between two points in consideration of air cut movement.

FIG. 19 is a diagram showing an example in which a tool cannot move by cutting while avoiding interference.

[Explanation of symbols]

1: Central processing unit 2: Input device display unit 3: Storage unit 4: Input / output control unit 5: Display unit 6: External storage medium 7: NC machine tool f1: Batch machining block f2: Hatch (tool route for batch machining) f4: Field (machining surface) f5: Tool path f6: Machining start point of target field f7: Machining start point candidate of target field f8: CL for connection between pairs f9: Machining start point of hatch element f10: Machining of batch processing End point f11: mark f12: field of interest f13: batch processing block E1, E2, E3: batch processing block having a processing start point candidate of the field of interest E4, E5: batch processing block having no processing start point candidate of the field of interest

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-208858 (JP, A) JP-A-5-265528 (JP, A) JP-A-5-228786 (JP, A) JP-A-3-20858 282907 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B23Q 15/00-15/28 G05B 19/18-19/46

Claims (15)

(57) [Claims] 1. A plurality of first tool path data for individually and collectively processing a plurality of blocks belonging to one processing surface, a first tool path connecting the first tool path data to each other. Connecting means; second tool path connecting means for connecting the second tool path data with respect to a plurality of second tool path data for contour machining belonging to one processing surface; and the first tool path A third tool for connecting the tool path data connected by the connecting means and the tool path data connected by the second tool path connecting means, or the second tool path data for contour machining which exists alone. Path connecting means; and the second tool path data in an open state belonging to one machining surface.
If there are multiple tools, two open second tool paths
Of all combinations of data, the second in one open state
The end point of the tool path data and the other second open tool path
For the combination with the longest distance from the start point of the data
Start point of the second tool path data in the other open state
Is the basis for connecting the tool path data on the machining surface.
A first setting means for setting a quasi-point, the Ru with the tool path data an automatic coupling device according to claim. 2. A plurality of first tool path data for individually and collectively processing a plurality of blocks belonging to one processing surface, a first tool path connecting the first tool path data to each other. Connecting means; second tool path connecting means for connecting the second tool path data with respect to a plurality of second tool path data for contour machining belonging to one processing surface; and the first tool path A third tool for connecting the tool path data connected by the connecting means and the tool path data connected by the second tool path connecting means, or the second tool path data for contour machining which exists alone. Path connecting means; and the second tool path data in a closed state belonging to one processing surface.
If there are a plurality of
The specified point of the tool path data of No. 2 is
Second set as reference point for tool path data connection
Tool path data automatic connection apparatus characterized by comprising: a setting means. 3. A plurality of first tool path data for individually and collectively processing a plurality of blocks belonging to one processing surface, a first tool path connecting the first tool path data to each other. Connecting means; second tool path connecting means for connecting the second tool path data with respect to a plurality of second tool path data for contour machining belonging to one processing surface; and the first tool path A third tool for connecting the tool path data connected by the connecting means and the tool path data connected by the second tool path connecting means, or the second tool path data for contour machining which exists alone. Path connection means; and the first tool path data for collective processing on one processing surface
If only belongs to, any first toolpath data
Of the four corner points of the line group that composes,
It is short, allows linear movement of the tool, and allows cutting movement.
Any point that is connected to the tool path data
Tool path data an automatic coupling device, characterized in that it comprises a third setting means for setting as a reference point, the for. 4. A plurality of first tool path data for individually and collectively processing a plurality of blocks belonging to one processing surface, a first tool path connecting the first tool path data to each other. Connecting means; second tool path connecting means for connecting the second tool path data with respect to a plurality of second tool path data for contour machining belonging to one processing surface; and the first tool path A third tool for connecting the tool path data connected by the connecting means and the tool path data connected by the second tool path connecting means, or the second tool path data for contour machining which exists alone. Path connecting means; and the second tool path data in an open state belonging to one machining surface.
If there are multiple tools, two open second tool paths
Of all combinations of data, the second in one open state
The end point of the tool path data and the other second open tool path
For the combination with the longest distance from the start point of the data
Start point of the second tool path data in the other open state
Is the basis for connecting the tool path data on the machining surface.
First setting means for setting as a reference point, the second tool path data in a closed state belonging to one machining surface
If there are a plurality of
Engineering of definitive a predetermined point 2 of the tool path data on the working surface
Second set as reference point for tool path data connection
Setting means; and the first tool path data for collective machining on one machining surface
If only belongs to, any first toolpath data
Of the four corner points of the line group that composes,
It is short, allows linear movement of the tool, and allows cutting movement.
Any point that is connected to the tool path data
Setting means for setting as a reference point for setting, the first setting means> the second setting means> the superiority of the third setting means.
Set the reference point for linking the tool path data in the prior order
An automatic linking device for tool path data, comprising a control means for controlling the tool path data. 5. A plurality of blocks belonging to one processing surface
Multiple first tool path data for individually and collectively machining
Data, the first tool path data are linked to each other.
First tool path connecting means, and a plurality of second tool paths for contour machining belonging to one machining surface.
For the path data, the second tool path data is linked
Second tool path connecting means to be connected, and tool paths connected by the first tool path connecting means
Data and the second tool path connecting means
Tool path data, or for contour machining that exists alone
Third tool path connection for connecting the second tool path data
Means, and wherein the second tool path coupling means includes the second tool path connecting means in an open state.
If there are multiple tool path data for
An automatic tool path data connection device, wherein second state tool path data are connected together . 6. A plurality of blocks belonging to one processing surface
Multiple first tool path data for individually and collectively machining
Data, the first tool path data are linked to each other.
First tool path connecting means, and a plurality of second tool paths for contour machining belonging to one machining surface.
For the path data, the second tool path data is linked
Second tool path connecting means to be connected, and tool paths connected by the first tool path connecting means
Data and the second tool path connecting means
Tool path data, or for contour machining that exists alone
Third tool path connection for connecting the second tool path data
Means, wherein the second tool path connecting means is capable of lowering the tool
Case, the cutting path of engineering tools to move the cutting state, non-cutting
Tool movement time in the non-cutting path where the tool moves in the state
Select the shorter path and link the second tool path data
Tool path data an automatic coupling device, characterized in that the binding. 7. A plurality of blocks belonging to one processing surface are
Multiple first tool path data for individually and collectively machining
Data, the first tool path data are linked to each other.
First tool path connecting means, and a plurality of second tool paths for contour machining belonging to one machining surface.
For the path data, the second tool path data is linked
Second tool path connecting means to be connected, and tool paths connected by the first tool path connecting means
Data and the second tool path connecting means
Tool path data, or for contour machining that exists alone
Third tool path connection for connecting the second tool path data
Means for moving the tool in a cutting state.
Cutting path and the non-cutting
Select the path with the shorter tool movement time from the
Connected tool path data connected by the first tool path connecting means.
And the second tool path connecting means.
Connected tool path data, or a second tool that exists alone
An automatic tool path data connection device for connecting path data. 8. A connection belonging to machining surfaces having different machining heights.
Fourth tool path connection for connecting the tool path data to each other
8. The method according to claim 1, further comprising:
The tool path data automatic connection device according to any one of the above. 9. The apparatus according to claim 8, wherein the fourth tool path connecting means is provided with the device.
Work belonging to the machining surface located at the shortest distance from the specified connection point
Wherein the tool path data is sequentially connected
Item 9. An automatic tool data connection device according to Item 8 . 10. The first tool path connecting means, the second
The tool path connecting means and the third tool path connecting means are respectively
Connection indicating the connection position with the tool path data to be connected next
The connection is performed while sequentially setting points.
The tool path data automatic connection device according to any one of claims 1 to 9 . 11. The first tool path connecting means, a second tool path connecting means,
The tool path connecting means and the third tool path connecting means are respectively
The first moveable in the shortest time from the set connection point
Tool path data, second tool path data,
Wherein the tool path data is sequentially connected
The tool path data automatic connection device according to any one of claims 1 to 10 . 12. The first tool path connecting means may be a straight line.
If tool interference occurs when connecting along the route,
Wherein the connection is performed by a route that avoids negotiation.
The tool path data automatic connection device according to any one of claims 1 to 11 . Wherein said first tool path coupling means according to any one of claims 1 to 12 and performs the connection process before the second tool path connecting means < A tool path data automatic connection device. 14. Among a plurality of collective machining blocks, of the four corner points of a line group constituting tool path data for machining each of the collective machining blocks, the distance to the tool is the shortest and cutting movement is permitted. When there is a point to be processed, setting means for setting this point as a processing start point candidate on the processing surface, and when sequentially connecting tool path data for each batch processing block from a predetermined reference point, Batch machining block connecting means for finally linking the batch machining block having the machining start point candidate set by the setting means; and connecting tool path data connected by the collective machining block connecting means in reverse order to perform actual machining. A tool path data automatic connection device, comprising: first output means for outputting as tool path data. 15. If the previous SL collectively processed blocks the machining start point candidates set by the setting means does not exist, according to claim 14, characterized in that it comprises a second output means for outputting the fact Tool path data automatic connection device.