KR100446921B1 - Complex Machining Machine Tool - Google Patents

Abstract

It has a cutting tool stand which can be detachably equipped with a tool equipped with an insert, and a plurality of virtual tools are set and registered simultaneously with the calculated position data with respect to at least one predetermined tool in a tool file, Based on the machining instruction by the stored virtual tool, the tool data of the corresponding virtual tool is read out from the tool file, and the corresponding virtual tool is calculated on the cutting tool stand based on the calculated position data, Execute the machining. In machining, it is possible to continue machining without changing the tool by calculating the position with the same tool, so that the time of tool change can be minimized even when the machining contents change or the tool life is reached and the need for tool change occurs. .

Description

Complex Machining Machine Tool

The present invention relates to a multi-task machine tool that can reduce the time of tool change as much as possible in the case of changing the processing content, or the need for tool change due to the end of tool life.

In particular, a plurality of inserts are mounted on a single holder portion, and the present invention relates to a composite machining tool using a composite tool capable of turning a rotary tool such as turning and drilling / milling with one tool.

It also relates to a multi-task machine tool that can be used as long as a single tool can be.

Conventionally, this type of machine tool is divided into a tool for turning and a tool for drilling / milling, so that the tool mounted on the cutting tool bar is applied to the machining to be performed afterwards whenever the contents of the process change, and then the machining is performed by detaching and replacing the tool. Was performed.

Such a machine tool requires time for tool change according to a tool change operation whenever the processing contents change, and there is an inconvenience in that the machining efficiency decreases accordingly. Therefore, a proposal has recently been made to improve machining efficiency by eliminating tool change time by using a compound tool equipped with a plurality of inserts in a single tool.

However, in the preparation of a machining program, it is impossible for an operator to know the processing contents of such a composite tool in advance. Therefore, there is a demand for the development of a machine tool capable of machining using a composite tool even if the operator is not aware of the composite tool. .

In addition, the tool change operation does not only occur when the machining contents are changed, but the tool change is necessary when the tool life is reached even for the same tool. Therefore, the tool change operation according to the tool life can be reduced as much as possible. It is important in improving

In particular, in view of this purpose, a method using a tool equipped with a button tool insert formed entirely in the shape of a disk has been implemented. When the part used for machining the insert is worn out, the operator should skip the time for tool change. This was done by slowing down the insert's clamp, rotating the insert a little, and fixing it again so that the unworn part of the insert could be used for machining.

However, this method can eliminate the time required for tool change, but it is not very efficient because it requires working time by stopping the operation of the machine every time the insert is worn, and slowing down the insert's clamp to rotate the insert a little. Did.

The present invention has been made in view of the above-described circumstances, and a first object of the present invention is to provide a multi-task machine tool that can reduce the time for tool change as much as possible even when the machining contents are changed or when the necessity of tool change occurs due to the end of tool life. do.

It is also a second object of the present invention to provide a multi-task machine tool that can use a multi-tool simply in the case of using a multi-tool in order to reduce the time for tool change.

Furthermore, it is a third object of the present invention to provide a multi-task machine that can exert the same effect even if the operator does not work to rotate the insert in order to reduce the time of tool change.

1 is a control block diagram showing an example of a multi-task machine tool to which the present invention is applied.

2 is a perspective view showing an example of a workpiece to be machined.

3 is a schematic diagram illustrating an example of tool data stored in a tool file and its contents.

4 is a perspective view showing an example of a composite tool;

5, 6, 7, and 8 are detailed views of the workpiece of FIG. 2 using a composite tool.

9 is a control block diagram showing an example of a multi-task machine tool to which another embodiment of the present invention is applied.

10 is a schematic diagram illustrating an example of tool data stored in a tool file of the multi-task machine tool shown in FIG. 9 and the contents thereof.

11 is a view showing an example of the use pattern of a tool.

<Description of the symbols for the main parts of the drawings>

1: Combined machining system 2: Main fisherman

7: Tool file 10: Spindle control part

11: cutting tool bar control unit 15: spindle

20: cutting tool table 21: composite tool

According to the invention of claim 1, in a multi-task machine, a plurality of inserts are mounted on a single body, and a plurality of virtual machines corresponding to the machining that can be performed by the inserts are tools having a single body by the plurality of inserts. A tool tool for detachably mounting a compound tool set in a form obtainable by designating a tool as a tool to be used in a machining program, and for rotating the compound tool around the axis of the tool tool stand. A calculation means capable of calculating to a predetermined calculation position is provided, and a tool file for storing tool data to be used in the machining program is provided, and the tool file can be designated by the machining program of each virtual tool set in each of the composite tools. The tool name and rotation calculation position data relating to the virtual tool. Tool data is stored in a form corresponding to each virtual tool, and the tool data of the virtual tool corresponding to the tool name is stored in the tool file based on the tool name and the machining command of the virtual tool stored in the machining program. A virtual tool selection calculation command means for instructing the calculation means to select and calculate a virtual tool set in the composite tool based on the rotation calculation position data of the tool data, and predetermined by the calculation means. On the basis of the virtual tool calculated at the calculation position of the tool, machining execution means for executing the machining corresponding to the machining instruction by the composite tool is provided.

According to the invention of claim 1, a plurality of virtual tools are set for a single tool, the calculation position data is stored for each virtual tool in the tool data, and the virtual tool is selectively calculated and used based on the calculation position data. In the machining process, it is possible to continue machining without changing the tool by calculating the position with the same tool, so that the time required for tool change can be reduced as much as possible even if the machining contents change or the life of the tool is required. In addition, in a tool equipped with a plurality of inserts in a tool file, a plurality of virtual tools are set according to the processing contents, so that the tool selection is completed by simply specifying a virtual tool to be used in the machining program. A plurality of inserts in the same sense as a normal tool without being aware of the tool That can be used to mount the tool.

The invention of claim 2 is characterized in that the tool data of the virtual tool stored in the tool file includes tool data for a plurality of virtual tools set with respect to one insert.

In the invention of claim 2, since a plurality of virtual tools are set in a single insert, a variety of machining can be performed with one tool, so that the tool change time can be shortened.

According to a third aspect of the present invention, the tool data of the virtual tool stored in the tool file includes tool data of two kinds of virtual tools, a turning tool and a milling tool set with respect to one insert.

In the invention of claim 3, since the turning tool and the milling tool are set in a single insert, various machining is possible with the composite tool, and thus the tool change time can be shortened and efficient machining is possible.

The invention according to claim 4 is characterized in that, in the tool file, information indicating the blade tip position of each virtual tool is stored as tool data.

According to the invention of claim 4, since the information indicating the blade position is stored for each virtual tool (for example, the tool set information TF in FIG. 10), even if the virtual tool is exchanged during machining, an accurate blade correction value can be obtained. High precision processing is possible without taking time such as re-measurement of the position.

In the fifth aspect of the present invention, the machining execution means includes: tool life determination means for determining tool life for the virtual tool, and when the virtual tool is judged to have reached the end of its life by the tool life determination means, the virtual tool. Has a substitute tool judging means which adopts another virtual tool of the same kind set in the multi-component tool set as a substitute tool, and uses a virtual tool determined by the substitute tool judging means as a substitute tool without changing the tool of the composite tool And processing is performed.

According to the invention of claim 5, the virtual tool determined to have reached the end of its service life by the tool life determining means has reached the end of its service life because another virtual tool of the same kind set in the composite tool in which the virtual tool is set is employed as a replacement tool. It is possible to efficiently change tools and execute machining operations.

According to a sixth aspect of the present invention, the cutting tool stand is provided to be movable in the first and second axial directions which are orthogonal to each other, and the cutting tool stand is a third orthogonal to the first and second axial directions. It is installed and configured to determine the rotation angle position around the axis of.

According to the invention of claim 6, the same type (for example, in the case of Fig. 10, which has different calculation angle positions (e.g., B-axis angle 70 °, 80 °, 90 °) with respect to the third axis stored in the tool file) Virtual tool with different calculated angular position around the 3rd axis to rotate the insert to omit tool change due to tool wear as the machining is performed by selectively using the virtual tool (GNL OUT) as a tool. It is possible to carry out on the machine side by the selection of, so that even if the operator does not stop the machine and rotates the insert, the machining can be continued simply by extending the tool life.

According to a seventh aspect of the present invention, the plurality of virtual tools set in the composite tool are turning tools, and the cutting tool stand is provided so as to be movable in movement in the first and second axial directions perpendicular to each other. The cutting tool stand is provided so as to be able to determine the rotational angle position with respect to the third axis orthogonal to the first and second axial directions.

The multi-task machine 1 has a main control part 2, as shown in FIG. 1, and the main control part 2, via a bus line 3, an input part such as a keyboard 5, a system program memory. (6), the tool file 7, the machining program memory 9, the spindle control unit 10, the cutting tool stand control unit 11 and the display 12 are connected. The main shaft motor 13 is connected to the main shaft control unit 10. The main shaft motor 13 is connected to a main shaft 15 provided so that rotational drive positioning is possible with the center of the shaft CT provided parallel to the Z axis, and the chuck 16 is provided on the main shaft 15. The chuck 16 is provided so that the pole 16a can move and drive in the direction of arrow C, D so that the workpiece | work 17 which should be processed may be released.

In addition, a cutting tool stand driving motor 19 (multiple) is connected to the cutting tool stand control unit 11, and a cutting tool stand 20 is connected to the cutting tool stand driving motor 19 by the cutting tool stand driving motor 19. It is connected to Z-axis and Z-axis at the arrow (E, F) direction which is orthogonal direction, ie, X-axis direction so that a movement drive is possible. Furthermore, the cutting tool set 20 is an arrow in the Y-axis direction perpendicular to the X and Z axes (or at right angles to the surface) by the cutting tool set drive motor 19 and an arrow in the B-axis direction about the Y axis. It is installed to be movable in the direction of (G, H).

A tool holding part 20a is formed in the cutting tool stand 20, and a turning tool, a milling / drilling tool, and a complex tool 21 capable of turning and milling / drilling are detachable from the tool holding part 20a. It is possibly installed. The tool holding portion 20a is provided so that the tool including the compound tool described above can be fixedly held in a predetermined holding state, and the rotational drive position can be determined around the axis center CT2.

As shown in Fig. 4, the composite tool 21 has a main body 21a formed in a round rod shape, and an insert mounting portion 21b is formed at the tip of the main body 21a. Four inserts 22, 23, 25, and 26 are detachably attached to the insert mounting portion 21b at a 90 ° pitch around the axis center CT3 of the main body 21a, and each insert is shown in Fig. 3 (a). ), The calculated number KD is set. The insert 22 has the calculated number KD 1, the insert 23 has the calculated number KD 2, the insert 25 has the calculated number KD 3, and the insert 26 has calculated the number KD. (KD) is set to 4.

Each of these inserts 22, 23, 25, and 26 is assigned a tool name as a virtual tool according to the processing contents performed by the compound tool 21, and the insert 22 having the calculated number KD is 1 in FIG. As shown in (c), three types of tools are used: 1) a turning drill for performing a drill that does not rotate by the tool itself, a 6) drill for performing a drill processing for rotating the tool itself, and 7 a end mill for performing a milling process. Is assigned as. Also, the outer diameter rough machining is performed on the insert 25 of the calculated number KD, and the inner diameter rough machining is performed on the insert 25 of the number 3, and the outer diameter rough machining is performed on the insert 25 of the number 3 calculated. In addition, the calculated insert number 26 of the outer diameter of the outer diameter and the inner diameter of the inner diameter of the inner diameter of the inner diameter of the inner surface of the insert 26 of the number 4 is assigned as the virtual tool.

Since the multi-task machine 1 has the configuration as described above, in order to process, for example, the cylindrical workpiece 17 having a diameter D 1 as shown in FIG. 2, the operator operates the keyboard 5 and is known. A variety of machining data is input by using the automatic program method to create a machining program. At this time, the main control unit 2 creates the machining program PRO according to various data input by the operator based on the known automatic program creation program stored in the system program memory 6, and the created machining program ( PRO) is stored in the machining program memory 9.

When the machining program PRO for the workpiece 17 is created, the operator instructs the machining of the workpiece 17 with respect to the main controller 2 via the keyboard 5, and the main controller 2 receives the machining program. The machining program PRO for the workpiece 17 is read out from the memory 9, and machining is performed while appropriately driving the spindle control section 10 and the cutting tool stage control section 11.

Machining of the workpiece 17 is performed by first drilling a hole 17a in the center of the workpiece 17 as shown in FIG. 5 (Ml), but the tool used at this time is a machining program ( PRO). When the tool to be used in the machining program PRO is designated, the main controller 2 reads the tool data TL of the corresponding tool with reference to the tool file 7.

As shown in Fig. 3 (b), the tool number (TN), the tool setting direction (DR), the tool name (NA), the nominal diameter / blade tip angle (CA), and the suffix are shown in the tool file. (DC), rotation direction / tool handle (RT), tool diameter / blade radius (DM), finishing / rough machining division (RF) are set for each tool as the list data (DAT1). Detailed data relating to is stored as the detailed data DAT2.

The composite tool 21 is set as an independent tool in a form divided into a plurality of virtual tools in accordance with the processing contents that can be processed by the composite tool 21 on the tool file 7. For example, the tool number TN is 1, and seven virtual tools to which the tool names NA and suffix DC are given from 1 to 7 are stored (the example shown in FIG. 3 (b) is an example). If the shape of the machining performed by the composite tool 21 is various, the virtual tool having more tool names NA and suffixes DC is registered accordingly). In other words, the tool file 7 is a tool independent of the inserts 22, 23, 25, and 26 for performing the above-described machining contents for each of the machining contents assigned to the inserts 22, 23, 25, and 26 of the compound tool 21. As shown in Fig. 3 (c), the tool data is stored therein. The virtual tools corresponding to each virtual tool name NA shown in Fig. 3C are stored in the type corresponding to ① to ⑦ in Fig. 3B. Doing.

That is, as shown in ① of FIG. 3 (b), the virtual tool of the ① turning drill in FIG. 3 (c) has a tool number TNo of 1, a tool setting direction DR of ←, and a tool name NA. The DRL EDG, nominal diameter / blade tip angle CA is registered as 180, suffix DC is A, rotation direction / tool handle RT turns right, and tool diameter / blade tip radius DM is registered as 50. The tool setting direction DR indicates the direction of the tool as a default value in the direction of the arrow. In the "←" direction, the direction of the tool is parallel to the Z axis, that is, the B-axis angle is 0 °, and "↓". Indicates the direction in which the direction of the tool is parallel to the X axis, that is, the B axis angle is 90 degrees.

Also, as shown in ② of FIG. 3 (b), the tool number TNo is 1, the tool setting direction DR is ↓, and the tool name is NA as shown in ② of FIG. 3 (b). ) GNL OUT, nominal diameter / blade tip angle (CA) is 75, suffix (DC) is B, rotation direction / tool handle (RT) is left hand / right turn, tool diameter / blade radius (DM) is 0.4, finishing / Rough machining section RF is registered as R (rough machining), and the virtual tool of ③ outer diameter finishing processing of FIG. 3 (c) shows tool number TNo as shown in ③ of FIG. 3 (b). 1, tool setting direction (DR) is ↓, tool name (NA) is GNL OUT, nominal diameter / blade end angle (CA) is 40, suffix (DC) is C, rotation direction / tool handle (RT) is right The knob / left turn, tool diameter / blade radius (DM) are 0.2, and the finishing / rough machining segment (RF) is registered as F (finishing).

Furthermore, as shown in ④ of FIG. 3 (b), the virtual tool for roughing the inner diameter ④ of FIG. 3 (c) has the tool number TNo of 1, the tool setting direction DR of the tool name, and NA. ) GNL IN, nominal diameter / blade tip angle (CA) is 75, suffix (DC) is D, rotation direction / tool handle (RT) is right hand / left turn, tool diameter / blade radius (DM) is 0.4, finishing The machining / rough machining section RF is registered as R (rough machining), and the virtual tool for finishing inner diameter finishing in Fig. 3 (c) is shown in ⑤ in Fig. 3 (b), and the tool number TNo. 1, tool setting direction (DR) is ←, tool name (NA) is GNL IN, nominal diameter / blade end angle (CA) is 40, suffix (DC) is E, rotation direction / tool handle (RT) is right The knob / left turn, tool diameter / blade radius (DM) are 0.2, and the finishing / rough machining segment (RF) is registered as F (finishing).

As shown in ⑥ of FIG. 3 (b), the virtual tool of the ⑥ mill drill in FIG. 3 (c) has a tool number TNo of 1, a tool setting direction DR of ↓, and a tool name NA of the drill. The nominal diameter / blade tip angle CA is 50, the suffix DC is H, the rotation direction / tool handle RT is registered as a left turn, and the virtual tool of the ⑦ end mill in Fig. 3C is shown in Fig. 3B. ), Tool number (TNo) is 1, tool setting direction (DR) is ↓, tool name (NA) is end mill, nominal diameter / blade end angle (CA) is 50, and suffix (DC). ) Is J, rotation direction / tool handle (RT) turns right, and tool diameter / blade radius (DM) is registered as 50.

Therefore, even when the compound tool 21 is used in the machining program PRO, the tool can be used in the machining program PRO as in the case of specifying a normal tool regardless of whether machining is performed using the compound tool 21 or not. As the tool, the tool name NA and the suffix DC of the corresponding virtual tool are designated. In the case of the machining M1 in which the hole 17a is formed in the center of the workpiece 17 shown in FIG. 5 described above, this designation is performed by using the virtual tool of the ① drilling drill of the composite tool 21 as a tool. As in the case of the tool designation, the tool name NA is designated as "DRL EDG" and the suffix DC as "A" in the machining program PRO. Therefore, even if the operator does not understand the specification of the entire composite tool 21 in the creation of the machining program PRO, the tool designation can be made simply by recognizing and specifying only the virtual tool in the tool file 7 individually. After this, even without any special knowledge about the composite tool 21, it is possible to create a machining program PRO. Then, the main control unit 2 searches for the tool data DAT of the tool file 7 and corresponds to the corresponding tool, that is, the tool number TNo shown in ① in FIG. A virtual tool whose tool name NA is "DRL EDG" and the suffix DC is "A" is selected, and the cutting tool stage control unit 11 commands the calculation of the tool to the machining position. In the tool file 7, regardless of the compound tool 21, each tool (including 1 to 7 as a "virtual tool" shown as 7 single tools in the compound tool 21) includes a turning-related tool. It is distinguished from the tool name NA and the suffix DC (in the case of the same tool name NA, the suffix DC is defined as "A", "B", "C", "D", "E", etc.). The milling tool is distinguished from the tool name (NA) and the nominal diameter / blade end angle (CA), so that the tool name (NA) and the suffix (DC) or If a tool name NA and nominal diameter / blade tip angle CA are specified, the corresponding tool is immediately determined.

The cutting tool stage control unit 11 drives a tool changer (not shown), and selects the composite tool 21 having a tool number TNo of 1 from the tool magazine (not shown) and mounts it on the cutting tool stage 20. When the composite tool 21 is mounted on the cutting tool set 20, the cutting tool set control section 11 corresponds to the turning drill in the tool name NA and suffix DC specified in the machining program PRO. With reference to the data DAT2, the calculation number KD and the B-axis angle regarding (1) the turning drill of the compound tool 21 shown in the detailed data DAT2 are read out.

The cutting tool stage control unit 11 drives and controls the tool drive motor (not shown) built into the cutting tool stage based on the calculated number and the B axis angle of the read ① turning drill. CT3) Positioning is performed so that the number KD calculated by rotating around is in a state of 1. The state of the calculation number 1 is a state where the insert 22 was positioned in the shape which faces the upper side (Y-axis direction) in a figure, as shown in FIG.3 (c). Furthermore, the B-axis drive motor (not shown) drives the cutting tool stand 20 in the direction of the arrows G and H to drive the composite tool 21 as shown in FIG. Position it so that its position is parallel to the Z axis of 0 °. In this state, as shown in FIG. 5 (M1), the main shaft 15 is driven to rotate by a predetermined rotational speed by the main shaft driving motor 13, and the composite tool 21 is indicated by the arrow A in the Z-axis direction. Direction movement, the hole 17a of predetermined depth is drilled and processed by the insert 22 to the workpiece | work 17 of a rotating state.

Next, the end face 17b of FIG. 5 (M2) is machined by the insert 22 of the composite tool 21. The cutting tool stage controller 11 drives the B-axis in a state in which a tool of a turning drill is selected. Drive the motor to drive the cutting tool 20 rotates a predetermined angle in the direction of the arrow H of the B-axis, as shown in Fig. 5 (M2), while maintaining the composite tool 21 slightly inclined with respect to the Z-axis The workpiece end surface 17b is processed by the same insert 22.

Next, the composite tool 21 is machined through the outer diameter 17c of the workpiece 17 of FIG. 5 (M3). In the machining program PRO, the tool name NA is changed to "GNL OUT" and the suffix DC. ) Is specified as "B" to designate the virtual tool. Then, the main control section 2 searches for the tool data DAT of the tool file 7 and corresponds to the corresponding tool, that is, the tool whose tool number shown in ② in FIG. The name NA selects the virtual tool of "GNL OUT" and the suffix DC of "B" and instructs the cutting tool stage control unit 11 to calculate the machining position of the tool.

The cutting tool stage control unit 11 refers to the tool name (NA) specified in the machining program (PRO) and the complex data displayed in the detailed data (DAT2) by referring to the detailed data (DAT2) corresponding to the outer diameter rough machining in the suffix (DC). Read out the calculation number "3" and the B-axis angle "112 degrees" regarding (2) outer diameter rough machining of the tool 21.

The cutting tool stand control unit 11 controls and drives a tool drive motor (not shown) built into the cutting tool set based on the calculated number "3" and the B-axis angle "112 degrees" relating to the roughened outer diameter machining. The tool 21 is rotated around its axis center CT3, and the composite tool 21 is positioned so that the calculation number KD shown in Fig. 3 (a) is in the state of 3. The B-axis drive (not shown) is further shown. Drive the motor to move the cutting tool 20 in the direction of the arrow (G, H) in the B axis direction to drive the composite tool 21 as shown in Fig. 5 (M3), the B axis angle position is Z axis Position it so that it becomes 112 ° counterclockwise. In this state, as shown in FIG. 5 (M3), the composite tool 21 is moved and driven in the direction of the arrow A in the Z-axis direction, thereby inserting the outer diameter 17c of the workpiece 17 in the rotating state. 25) is processed over a predetermined length (L1).

Next, the inner diameter 17d of the work piece 17 of FIG. 6 (M4) is to be finished with the composite tool 21. In the machining program PRO, the tool name NA is changed to "GNL IN" and the suffix (DC). ) Is specified as "E" to designate the virtual tool. Then, the main control unit 2 searches for the tool data DAT of the tool file 7 and corresponds to the corresponding tool, that is, the tool number TN shown in ⑤ in FIG. The fifth tool name NA selects a virtual tool of "GNL IN" and the suffix DC of "E", and instructs the cutting tool stage control unit 11 to calculate the machining position of the tool. .

The cutting tool stage control unit 11 refers to the tool name NA and the suffix DC specified in the machining program PRO. Read out the calculation number "4" and B-axis angle "0 degree" regarding (5) Inner-diameter finishing of the tool 21. As shown in FIG.

The cutting tool stand control unit 11 controls and drives a tool drive motor (not shown) built into the cutting tool set based on the calculated number &quot; 4 &quot; and B-axis angle &quot; 0 &quot; The tool 21 is rotated around its axis center CT3, and the composite tool 21 is positioned so that the calculation number KD shown in Fig. 3A becomes 4, and furthermore, B-axis driving not shown. By driving the motor, the cutting tool stand 20 is driven in the direction of the arrows (G, H) in the B axis direction, and the composite tool 21 is shown in FIG. 6 (M4), where the B axis angle position is Z axis. Position it so as to be 0 °, ie parallel. In this state, as shown in FIG. 6 (M4), the composite tool 21 is moved and driven in the direction of the arrow A in the Z-axis direction, so that the inner diameter 17d of the workpiece 17 in the rotating state is inserted ( 26) to machine over a predetermined length.

Thus, as shown in Figs. 6 (M5), 6 (M6) and 7 (M7), 7 (M8), each insert 22, 23, 25, 26 of the same composite tool 21 is tooled. Based on the tool data (DAT) stored in (7), the tool tool center (CT3) is rotated around to selectively calculate and position the insert used for machining, while simultaneously positioning the cutting tool stand in the direction of the B axis. Rotating positioning is performed by the respective inserts 22, 23, 25, and 26 to the outer diameter finishing shown in FIG. 6 (M5), the outer diameter groove shown in FIG. 6 (M6), and to (M7) in FIG. The workpiece 17 is subjected to various processing such as internal thread machining shown and external thread machining shown in FIG. 7 (M8). 6 and 7 do not use the virtual tools 1 to 7 shown in FIG. 3 (c), but in this case, the parts of FIG. 4 set and stored in other parts of the tool file 7 are also used. Machining is performed using the virtual tool for the composite tool 21. For example, the virtual tool used for finishing the outer diameter of FIG. 6 (M5) has a tool number TN of 1 (indicative of the composite tool 21) in the tool file 7, and the tool name NA is &quot; GNL. &Quot; OUT ", suffix DC is" K ", calculation number KD is" 2 ", B-axis angle is" 5 degree ", and the process by the insert 26 is performed.

In this way, when turning of the workpiece 17 is completed, the milling shown in Figs. 8 (M9), (M10) and (M11) is performed, but in this case, the tool file 7 of the composite tool 21 is also used. (M9) surface processing, (M10) drill processing, and (M11) spot facing processing are performed on the workpiece 17 by using the ⑥ mill drill and ⑦ end mill of the virtual tool associated with the composite tool 21 installed in the tool. Since the ⑥ mill drill and ⑦ end mill of the virtual tool are machined by the insert 22 of the calculation number 1 as shown in FIG. 3 (c), the composite tool 21 is changed while changing the B axis angle. The milling process is performed while rotating the workpiece 17 held on the main shaft around the Z axis at a high speed with respect to the axis center CT2 while maintaining a fixed rotation around the Z axis or controlling the C axis.

By processing as mentioned above, the workpiece as shown in FIG. 2, for example, can be cut into one composite tool 21 from a round bar.

Another embodiment of the invention is shown in FIGS. 9 to 11. Here, the same parts as those already described in FIGS. 1 to 8 will be denoted by the same reference numerals.

As shown in FIG. 9, the multi-task machine 1 has a main control part 2, which has an input part such as a keyboard 5 and a system program memory (B) via a bus line 3; 6), a tool file 7, a tool life determination unit 8, a machining program memory 9, a spindle control unit 10, a cutting tool stage control unit 11 and a display 12 are connected. The main shaft motor 13 is connected to the main shaft control unit 10. The main shaft motor 13 is connected to a main shaft 15 provided so as to be rotatable in positioning with respect to an axis center CT provided parallel to the Z axis, and the chuck 16 is provided on the main shaft 15. The chuck 16 is provided so that the pole 16a can move and drive in the direction of arrow C, D so that the workpiece | work 17 which should be processed may be released.

In addition, a cutting tool stand driving motor 19 (plural) is connected to the cutting tool stand control unit 11, and a cutting tool stand 20 is connected to the cutting tool stand driving motor 19 by the cutting tool stand driving motor 19. It is connected to the Z-axis direction (arrow A, B direction) and the arrow (E, F) direction which is orthogonal to a Z axis | shaft, ie, X-axis direction so that a movement drive is possible. Furthermore, the cutting tool stand 20 is driven by the cutting tool stand driving motor 19 at a right angle to the X and Z axes (the Y-axis direction perpendicular to the surface) and the B-axis direction about the Y axis. It is provided so that a movement drive is possible in the direction of the arrow (G, H).

The tool holding part 20a is formed in the cutting tool stand 20, and the tool 21 is detachably attached to the tool holding part 20a. The tool holding portion 20a is provided so that the tool can be fixedly held in a predetermined holding state and the rotational drive position can be determined around the axis center CT2.

Among the plurality of tools 21 mounted on the cutting tool 20, the so-called button tool cutting tool 21A in which the button tool insert is provided at the tip is formed in a round rod-shaped body 21a as shown in FIG. The disc-shaped button tool insert 22 is detachably attached to the distal end of the main body 21a by the set screw 230. In the button tool insert 22, as shown in FIG. 11, the blade surface 22a is formed in the whole circular outer peripheral surface.

Since the multi-task machine 1 has the configuration as described above, for example, when machining the cylindrical workpiece 17, the operator operates the keyboard 5 to input various machining data using a known automatic program. Write the part program. At this time, the main control unit 2 creates the machining program PRO on the basis of various data input by the operator in accordance with a known automatic program creation program stored in the system program memory 6, and generates the machining program PRO. ) Is stored in the part program memory 9.

When the machining program PRO for the workpiece 17 is created, the operator instructs the machining of the workpiece 17 with respect to the main controller 2 via the keyboard 5, and the main controller 2 receives the machining program memory. The machining program PRO relating to the workpiece 17 is read out from (9), and machining is performed while appropriately driving the spindle control unit 10 and the cutting tool stand control unit 11.

In the machining of the workpiece 17, when the tool to be used in the machining program PRO is designated, the main controller 2 reads the tool data DAT of the corresponding tool with reference to the tool file 7.

Of the tool data DAT stored in the tool file 7, the button tool cutting tool 21A is registered as three virtual diameter tools which are virtually registered, as shown in FIG. . That is, in the tool file 7, 27 is assigned as the tool number TNo to the button tool cutting tool 21A shown in FIG. 11, and as described above, the button tool cutting tool 21A has three values. Since three outer diameter cutting tools are registered as virtual tools, three identical tool numbers (TNo) are assigned to a portion where the virtual tool is registered in the tool file 7 so that these tools are virtual tools for the same tool. Is indicated.

All of these virtual tools are given a "GNL OUT" indicating an outer diameter tool as a tool name (NA) indicating a tool type, and the suffix (SF) is "A", "B" to distinguish each outer diameter tool. Is given as "C". As the tool data DAT, the life state ST of each virtual tool is recorded, and the "life time" flag FLG is recorded for the virtual tool used for a predetermined machining time. In the group GP column, a group code GF is stored as a flag indicating that the virtual tools 250, 260, and 270 are tools of the same kind, and the group code GF is &quot; 1 &quot; It is said. In addition, when different kinds of virtual tools are set for the same tool, the group code GF is naturally different. That is, even if the tool name is "GNL OUT" for the same diameter machining tool, it is often used for different kinds of machining, so this distinction is necessary.

In addition, the tool set information (TF) indicating each tool edge position is stored in the virtual tool, and the B-axis calculation angle BA when calculating the virtual tool at the button tool cutting tool 21A is 70 °. , 80 °, 90 ° and 10 °, respectively, are stored in different shapes. That is, among the three virtual tools 250, 260, and 270, the virtual tool 250 having a suffix of "A" is a cutting tool equipped with a button tool cutting tool 21A, as shown in Fig. 11A. The base 20 is rotated 70 degrees in the direction of the arrow G in FIG. 9 from the state where the axis B of the tool mounting portion 20a has a B-axis angle parallel to the Z-axis of 0 °, and the button is pressed. The first blade tip 22b of the blade surface 22a of the tool insert 22 is set to the blade tip of the virtual tool 250.

As shown in Fig. 11 (b), the virtual tool 260 having a suffix of "B" has a center of the tool mounting portion 20a, the cutting tool stand 20 having the button tool cutting tool 21A mounted thereon. CT2 is a state in which the B-axis calculation angle BA parallel to the Z-axis is rotated by 80 ° in the direction of FIG. 9G from the state of 0 °, and the blade surface of the button tool insert 22 ( The second blade tip 22c adjacent to the right side of the above-described first blade tip 22b of 22a is set as the blade tip of the virtual tool 260.

Furthermore, as shown in Fig. 11 (c), the virtual tool 25 having a suffix of "C" has an axis of the tool mounting portion 20a in which a cutting tool stand 20 equipped with a button tool cutting tool 21A is mounted. CT2 is a state in which the B-axis calculation angle BA parallel to the Z-axis is rotated 90 degrees in the direction of the arrow G from FIG. 9 from the state of 0 °, and the blade surface of the button tool insert 22 ( The third blade tip 22d adjacent to the right in the above-described second blade tip 22c of 22a) is set as the blade tip of the virtual tool 250.

For example, when the virtual tool 250 of the suffix SF having the tool number TNo of 27 is specified in the machining program PRO, the main control unit 2 has the tool number TNo of 27. The button tool cutting tool 21A is mounted on the tool mounting portion 20a of the cutting tool table 20, and furthermore, at 70 ° of the B-axis calculation angle BA shown with respect to the virtual tool 250 of the tool data DAT. On the basis of this, the cutting tool stand 20 is driven to rotate in the direction of the arrow G, so that the B-axis calculation angle BA is positioned at 70 ° of the button tool cutting tool 21A.

In this state, the main shaft drive motor 13 is driven to rotate at a predetermined rotation speed, so that the workpiece 17 held on the chuck 16 is rotated at a predetermined rotation speed, and the cutting tool stand 20 is moved in the X and Z axis directions. And the workpiece 17 is turned on the first blade end 22b of the virtual tool 250, as shown in Fig. 11A. During machining by the virtual tool 250, the tool life determination unit 8 measures the usage time of the virtual tool 25, and when the usage time of the virtual tool 250 reaches a predetermined life time, the tool file The "lifetime" flag FLG is recorded in the part of the life state ST of the tool data DAT for the virtual tool 250 of (7), and the virtual tool 250 reaches the predetermined life. .

The main control unit 2 has a lifespan state when the "life" is determined by the tool life determination unit 8 during machining by the virtual tool 250 or with respect to the virtual tool 250 of the tool data DAT. When the virtual tool 250 is designated as a tool to be used for machining the workpiece 17 in the machining program PRO after the &quot; life &quot; flag FLG is set in the ST) portion, the virtual tool 250 in the tool file of FIG. Search for a tool that replaces tool 250. Since the group code GF and "1" are stored with respect to the same kind of tool as the virtual tool 250, the virtual tool 260 is moved from the tool with the group code GF "1". It is employed as a tool to replace 250, and immediately start machining the workpiece 17 by the virtual tool 260.

The change from the virtual tool 250 to the virtual tool 260 is a button tool cutting tool 21A having the same tool number TNo of 27 together with the virtual tools 250 and 260, and the B-axis angle from 80 to 70 degrees. Since it only changes to °, when the virtual tool 250 is judged to be the life by the tool life determination unit 8 while the virtual tool 250 is in use, the main control unit 2 is the cutting tool stage control unit. Through (11), the cutting tool 20 is rotated only 10 degrees in the direction of the arrow (G). As a result, the button tool cutting tool 21A is positioned at a B-axis angle of 80 °, and the virtual tool 260 is calculated.

In addition, when the virtual tool 250 is designated in the machining program PRO, the main control unit 2 determines that the virtual tool 250 has already reached the end of life, and the tool file 7 displays the "Life" flag ( FLG), the virtual tool 260 is selected from the same group code GF &quot; 1 &quot; of the tool file 7, and the tool number (a) is regarded as the virtual tool 250. TNo) attaches the button tool cutting tool 21A of 27 to the cutting tool stand 20, sets the B-axis calculation angle BA to 80 degrees, and as shown in FIG. The work piece is processed by the blade tip 22c.

Although the second blade tip 22c of the virtual tool 260 is adjacent to the first blade tip 22b of the virtual tool 250, the second blade tip 22c is not used in the machining of the virtual tool 250. The machining of the workpiece 17 by the tool 260 can be performed smoothly despite using the same button tool cutting tool 21A.

In this way, when the tool life determination unit 8 determines that the life of the virtual tool 260 has been reached while the virtual tool 260 is in use, the life state of the virtual tool 260 (ST) as described above. ), The flag FLG of the "lifetime" is recorded, and the virtual tool 260 reaches the predetermined lifetime, and the same group code GF is the same as the "1" virtual tool 270 in the same order. ) Is used as a replacement tool for the virtual tools 250 and 260 that have reached their end of life.

The change from the virtual tool 250, 260 to the virtual tool 270 is that the virtual tool 250, 260, 270 together is the same button tool cutting tool 21A having a tool number TNo of 27, and the B axis angle is Since it only changes from 70 ° and 80 ° to 90 °, when the virtual tool 250 or 260 is judged to be the life by the tool life determination unit 8 while the virtual tool 250 or 260 is in use, The main control part 2 rotates the cutting tool stand 20 only 10 degrees or 20 degrees in the direction of an arrow G through the cutting tool stand control unit 11. As a result, the button tool cutting tool 21A is positioned at 90 ° of the B-axis angle, and the virtual tool 270 is calculated.

In addition, when the virtual tool 250 or 260 is designated in the machining program PRO, the main control unit 2 determines that the virtual tool 250 or 260 is already in the service life, Life "flag FLG is recorded, so that the same group code GF of the tool file 7 selects the virtual tool 270 from among" 1 "and replaces the virtual tool 270 with the virtual tool 250. Or 260), a button tool cutting tool 21A having a tool number TNo of 27 is mounted on the cutting tool table 20, and the B axis angle is set to 90 degrees, and the result is shown in FIG. As described above, the workpiece is processed by the third blade tip 22d.

Although the third blade tip 22d of the virtual tool 270 is adjacent to the first and second blade tips 22b and 22c of the virtual tool 250 and 260, the third blade tip 22d of the virtual tool 270 is used for the machining of the virtual tool 250 and 260. Since the part 17 is not used, the workpiece 17 can be smoothly processed by the virtual tool 270 even when the same button tool cutting tool 21A is used.

As described above, the blade tip positions of the virtual tools 250, 260, and 270 are stored for each blade tip 22b, 22c, and 22d as the tool set information TF, and are therefore virtual within the same group code GF. Even when the tool is changed, it is possible to perform appropriate processing by the type in which the blade tip positions of the virtual tools 250, 260, and 270 are corrected.

The above-described embodiment describes a case where a button tool cutting tool 21A equipped with a button tool insert 22 is used as a tool 21 in which a plurality of virtual tools 250, 260, and 270 are set. However, the tool to which the virtual tool is set is not limited to the button tool cutting tool 21A, but a different type of insert can be mounted as long as the machining of the same content can be performed on the workpiece by changing the B axis position of the cutting tool stage. The tool may be used.

As mentioned above, although this invention was demonstrated based on the Example, the Example described in this invention is illustrative and is not limited. It is to be noted that the scope of the invention is indicated by the appended claims and is not limited to the description of the embodiments. Accordingly, all changes and modifications belonging to the claims are within the scope of the present invention.

Claims (9)

In the multi-task machine, A plurality of inserts are mounted on a single body, and a plurality of inserts can be obtained by designating a plurality of virtual tools corresponding to the machining that can be performed by the inserts as a tool to be used in a machining program. It has a cutting tool stand for detachably mounting a composite tool set in the In the cutting tool set, calculating means capable of calculating at a predetermined calculating position by rotating the compound tool around its axis, Install a tool file that stores the tool data used in the part program, In the tool file, the tool data including a tool name that can be specified in a machining program of each virtual tool set in each of the multi-component tools and rotation calculation position data for the virtual tool is stored in a type corresponding to each virtual tool. And On the basis of the tool name and the machining command of the virtual tool stored in the machining program, tool data of the virtual tool corresponding to the tool name is read out from the tool file, and based on the rotation calculation position data of the tool data, A virtual tool selection calculation command means for instructing the calculation means to select and calculate the virtual tool set in the multi-component tool; And a processing execution means for executing the processing corresponding to the processing instruction by the composite tool based on the virtual tool calculated by the calculation means at a predetermined calculation position. The method according to claim 1, And the tool data of the virtual tool stored in the tool file includes tool data for a plurality of virtual tools set with respect to one insert. The method according to claim 1, And the tool data of the virtual tool stored in the tool file includes tool data of two kinds of virtual tools of a turning tool and a milling tool set with respect to one insert. The method according to claim 1, And said tool file stores information indicating the blade tip position of each virtual tool as tool data. The method according to claim 1, The processing execution means, Tool life determination means for determining a tool life for the virtual tool; And, when the tool life determination means determines that the virtual tool has reached the end of its life, it has an alternative tool determination means that employs another virtual tool of the same kind set in the composite tool in which the virtual tool is set as a replacement tool, And a virtual tool which is determined as a substitute tool by said substitute tool determination means, to perform processing without using tool replacement of said composite tool. The method according to claim 1, The cutting tool stand is provided to be movable in the first and second axial directions perpendicular to each other, and the cutting tool stand is rotated about a third axis orthogonal to the first and second axial directions. Combined machining machine installed to set the angle position. The method according to claim 1, The plurality of virtual tools set in the composite tool are turning tools, The cutting tool stand is provided to be movable in the first and second axial directions perpendicular to each other, and furthermore, the cutting tool stand is centered on a third axis orthogonal to the first and second axial directions. Combined machine tool installed to set the rotation angle position delete delete