JP3207125B2 - Turret tool selection command 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 turret having at least one turret surface on which a plurality of cutting tools are mounted, and a tool selection (turret surface indexing and tool Y) is performed by one programming command. Axial positioning)
It is related to something devised to be performed.

[0002]

2. Description of the Related Art Conventionally, a configuration in which one blade is attached to a turret surface has been generally used. On the other hand, a configuration in which a plurality of blades are attached to a turret surface has been considered in order to cope with more complicated processing and multi-kind processing. As such a device, for example, there is one as disclosed in Japanese Patent Application Laid-Open No. 6-246514. FIG. 6 shows the configuration. First, there is a base 101, on which the headstock 1 is mounted.
03 is installed. The headstock 103 is mounted on the base 10.
1 is moved in the Z-axis direction by a servo motor 105. A spindle 107 is rotatably mounted on the headstock 103.
The work (indicated by a virtual line in FIG. 6) 109 is gripped by 07. A guide bush 111 is provided in front of the headstock 103 (right side in FIG. 6), and the guide bush 111 supports the tip of the work 109.

On the base 101, a slide base 1 is provided.
13 is installed, and the slide base 113 is
The servo motor 115 moves in the X-axis direction orthogonal to the Z-axis direction. A turret tool post 117 is attached to the slide base 113, and the turret tool post 117 is
19, the Y-axis direction orthogonal to the X-axis direction (FIG. 6)
It is configured to move in the middle vertical direction.

A turret 121 is mounted on the turret tool rest 117 so as to be pivotable by driving means (not shown). On the outer side of the turret 121,
A plurality of (six in the case of FIG. 6) tool mounting surfaces (turret surfaces) 123 are provided.
, A plurality of (two in the case shown in FIG. 6) tool mounting holes 125 are formed. And these tool mounting holes 1
25, arbitrary tools 127, 127 are attached. The same type of tool may be attached, or a different type of tool may be attached.

[0005] In the automatic lathe having the above configuration, when a tool mounted on each turret surface 123 of the turret 121 is selected, the following method is used. That is, as shown in FIG. 7, it is necessary to first issue a command for selecting an arbitrary turret surface 123 in a program command, and then issue a tool positioning command as another command. In FIG. 7, “T □
In the “□” of “□”, a numeral for specifying an arbitrary turret surface 123 is entered, and “GO Y "of" "
Represents a numerical value specifying the Y coordinate of the blade. That is, the turret surface 123 has a plurality of blades 12
7 are attached, and of course, their Y coordinate positions are different. Therefore, in order to position the selected blade 127 with respect to the workpiece 109, it is necessary to move the blade 127 by a predetermined amount in the Y-axis direction.

[0006]

According to the above-mentioned conventional configuration, there are the following problems. That is, according to the conventional program command method, there is a problem that the program creation operation becomes extremely complicated, and the operation requires much labor and a long time. First, a command to select a predetermined turret surface 123 and the selected turret surface 1
This is because a command for selecting an arbitrary blade 127 among the plurality of blades 127 is another command, and
This is because the Y coordinate value must be designated each time the cutter 127 is selected.

The present invention has been made based on such a point, and the object is to select a turret surface and a tool by a single programming command, to determine the turret surface, to select a blade, and to select a tool. It is devised to be able to perform positioning in the Y-axis direction,
An object of the present invention is to provide a turret tool selection instruction method capable of facilitating a program creation operation.

[0008]

To achieve the above object, a turret tool selection command method according to the present invention has a plurality of turret surfaces, a plurality of tools are mounted on at least one turret surface, and a work axis. An arbitrary tool can be selected in the pivotable turret, which is movable in the X-axis direction that is separated from and attached to the core, the X-axis direction, and the Y-axis direction that is orthogonal to the Z-axis direction that is the workpiece center line. In the turret tool selection command method to be commanded, a turret surface number is given to each turret surface and a tool number is given to each tool,
The method includes a step of previously setting and storing Y-axis position information corresponding to the tool number, and simultaneously specifying an arbitrary turret surface number and a tool number by a single program command when creating a machining program. Finger at run time
The specified turret surface number is compared with the current turret surface number.
Performing a turret surface indexing operation
Compares the tool number with the current tool number, and the comparison result does not match
In the case of, the Y-axis position information corresponding to the specified tool number is
Reading and positioning the tool in the Y-axis direction.
It is characterized in further comprising. At that time, turret
Performing a surface indexing operation and positioning in the Y-axis direction
It is conceivable to perform the steps simultaneously.

[0009]

In other words, a turret surface number is given to the turret surface, and a tool number is given to each tool. or,
Y-axis position information corresponding to each tool number is set and stored in advance. Then, when creating a machining program, an arbitrary turret surface number and a tool number are simultaneously designated by one program command. After that, when executing the machining program, the specified turret surface number is
Compares the turret surface number with the turret surface indexing operation.
Process and compare the specified tool number with the current tool number
If the comparison results do not match, the
The corresponding Y-axis position information is read out and the
The step of positioning is performed. Further, when the turret surface is indexed and the tool is positioned in the Y-axis direction at the same time when the machining program is executed, the processing time can be reduced accordingly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment of the present invention will be described. First, the configuration of the turret, a driving unit for driving the turret, and a control unit for controlling the driving unit will be described with reference to FIG. Turret 1
Has a plurality (eight in this embodiment) of turret surfaces 3 on its outer surface, and the eight turret surfaces 3
Turret surface number "01" to identify it
“08” is assigned to each. A tool holder 5 is attached to each of the turret surfaces 3 in FIG.
Tool holder 5 only on turret surface 3 of “01” and “02”
However, it is assumed that the tool holder 5 is also attached to the other turret surface 3).

There are various types of the tool holder 5 (the types differ depending on the number of tools 7 to be mounted). For example, as shown in FIGS.
There is a tool holder 5 of a type for attaching two tools 7, a type for attaching two tools 7, and a type for attaching three tools 7. Of course, the invention is not limited to these.

Each of the tools 7 attached to the tool holder 5 is provided with a tool number (ID number) for recognizing the tool 7, as shown in FIGS. For example, the ID number of the tool 7 shown in FIG. 2 is “00”, the ID numbers of the tools 7 and 7 shown in FIG. 3 are “11” and “12”, and the ID numbers of the tools 7, 7 and 7 shown in FIG. Are “21”, “2”
2 "and" 23 ". The type of tool holder 5 used by the user and the turret surface 3 to which it is attached are arbitrary.

The turret 1 has an X-axis direction orthogonal to each other (a direction approaching and separating from the axis of the work 4), the X-axis direction and a center line direction of the work 4 (Z-axis direction, which is orthogonal to the plane of FIG. 1). ) Can be moved in the Y-axis direction (vertical direction) perpendicular to the direction, and can be turned (T-axis direction). For this purpose, the X-axis servomotor 9, Y
A shaft servomotor 11 and a T-axis servomotor 13 are provided, respectively. In addition, as for the turning, it is conceivable to drive by a hydraulic pressure or the like as a driving source other than the servomotor, for example.

Further, there is a numerical control device (NC device) 15, and this numerical control device 15 has a servo operation command unit 17,
A servo position analysis unit 19 and memories 21 and 23 are provided. The servo motor 9 for the X-axis, the servo motor 11 for the Y-axis, and the servo motor 13 for the T-axis described above
A predetermined operation is performed via 7, 29. The rotational positions of the X-axis servomotor 9, the Y-axis servomotor 11, and the T-axis servomotor 13 are analyzed by the servo position analysis unit 19, respectively. The memory 21 stores a machining program, and the memory 23 stores
Information for setting the position of the Y axis with respect to the ID number corresponding to each tool 7 (Y axis position information), that is, the distance in the Y axis direction from the center position of the turret surface 3 is stored.

Next, the machining program stored in the memory 21 will be described. That is, when an arbitrary tool 7 is selected when forming a machining program, T
It is only necessary to instruct with a four-digit code. This is shown in the top block of the flowchart of FIG. In the T4 digit code, that is, “T □□”, “□□” is a turret surface number for selecting an arbitrary turret surface 3, for example,
The numbers "01", "02" ... are entered, and "@"
Is an ID number for selecting an arbitrary tool 7, for example, “0”
.., "11",... Then, by this one command, the selection of the turret surface 3 and the selection of the tool 7 are performed, and, as described above, the distance in the Y-axis direction corresponds to each tool 7,
Since the distance is already stored in the memory 23, by selecting the tool 7, the corresponding distance in the Y-axis direction is automatically set. As in the conventional case, the value is set and set each time. No need to enter.

The operation of the above configuration will be described with reference to the flowchart of FIG. 5 (turret surface indexing and tool selection). First, a T4-digit command “T □□ △△” is entered (step S1), and “□□” of the command is input to the □□ processing unit (step S2), and “△△” is entered.
Is input to the △△ processing unit (step S3). □
The processing section first determines whether or not the current number is the same as the current number (step S4), and then proceeds to step S5 to move the moving object from the difference between the commanded number and the current number. Calculate the angle. Next, the process proceeds to step S6, where the servo operation command unit 17 outputs a positioning command to the T-axis servomotor 13. Thus, the T-axis servomotor 13 is driven via the servo amplifier 29 (step S7). Then, the rotational position of the T-axis servo motor 13 is analyzed by the servo position analyzing unit 19, and it is determined whether or not the predetermined movement has been completed (step S8). Thus, the indexing of the turret surface 3 is completed. In step S4, if it is the same as the current No., the turning operation is not performed.

On the other hand, also in the (1) processing unit, first, it is determined whether or not the current No. is the same (step S9). Next, the process proceeds to step S10, where the position data corresponding to the instructed ID number is read from the memory 23 and compared with the current position to calculate the movement amount. Then, step S
In step S11, the servo operation command unit 17 outputs a positioning command to the Y-axis servomotor 11.
As a result, the Y-axis servo motor 11 is driven via the servo amplifier 27 (step S1).
2). Then, the rotational position of the Y-axis servo motor 11 is analyzed by the servo position analyzing unit 19, and it is determined whether the predetermined movement is completed (step S13). This completes the movement of the selected tool 7 in the Y-axis direction. In step S9, if it is the same as the current No., the movement in the Y-axis direction is not performed. Then, when the indexing of the turret surface 3 and the movement of the tool 7 in the Y-axis direction are simultaneously advanced and completed, the operation is completed (step S14).

Next, an example of the operation when a numerical value is actually entered will be described. For example, “T0111” (the turret surface 3 of “01” is selected as the turret surface and the tool 7 with the ID number of “11” is currently selected) is currently selected (the state shown in FIG. 1). Next, “T0223” (the turret surface 3 of “02” is selected as the turret surface, and
It is assumed that a command for selecting the tool 7 having the ID number “23” has been issued. When the ID number is "11" as the positioning data in the Y-axis direction corresponding to each ID number, "5"
0.0mm "and the ID number of" 23 "are" 100.
0 mm "is set and stored.

The coordinate of the T axis with respect to the turret surface 3 is “01” because the angle of one surface is 45 ° (in the case of the present embodiment, eight surfaces are 360/8 = 45 °).
Assuming that the T axis coordinate of the turret surface 3 is 0 °, the T axis coordinate of the turret surface 3 of “02” is 45 °. Turret 1
Is obtained by controlling the drive rotation of the T-axis servo motor 13 so that T =
From the state of 0 to T = 45.0, the turret surface 3 of “02” is indexed, and the driving rotation control of the Y-axis servomotor 11 controls the state of Y = 50.0 to Y = 100. .0 state.

The present invention is not limited to the above embodiment. First, various configurations of a machine including a turret are conceivable, and are not limited to, for example, an automatic lathe as shown in the conventional example. In the above-described embodiment, the processing of the T axis and the processing of the Y axis are performed simultaneously. However, the present invention is not limited to this. One of the processing may be performed first and then the other may be performed. Good. Also, various types of Y-axis position information that are set and stored in advance can be considered. That is, in the above-described embodiment, the distance from the center position of the turret surface 3 is used as the Y-axis position information, but other values may be used as the Y-axis position information. Further, in the above-described embodiment, an example in which a plurality of tools are attached to all turret surfaces has been described. For example, one tool is provided for a certain turret surface, and another tool is provided for another turret surface. The same can be applied to a case where a plurality of tools are attached.

[0021]

As described in detail above, according to the turret tool selection command method according to the present invention, the position of the tool in the Y-axis direction is determined in advance in correspondence with the tool number specific to the tool.
Since axis coordinates are set and stored, there is no need to input them when creating a program. Simply specify the tool number, and it will be automatically read and set when it is executed. By doing so, the indexing of the turret surface and the selection of the tool can be selected by one program command, so that the program creation work is facilitated and the program itself is simplified. Further, when the turret surface indexing and the Y-axis processing are performed simultaneously, the processing time can be shortened accordingly.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention,
FIG. 3 is a block diagram illustrating a configuration of a driving unit that drives the turret and a control unit that controls the driving unit.

FIG. 2 is a view showing an embodiment of the present invention, and is a side view showing a type of a blade holder.

FIG. 3 is a view showing one embodiment of the present invention, and is a side view showing a type of a blade holder.

FIG. 4 is a view showing an embodiment of the present invention, and is a side view showing a type of a blade holder.

FIG. 5 is a diagram showing an embodiment of the present invention, and is a flowchart showing how a command is processed.

FIG. 6 is a perspective view illustrating a configuration of an automatic lathe equipped with a turret, which is used for explaining a conventional example.

FIG. 7 is a diagram showing a conventional example, and is a diagram showing a program command.

[Explanation of symbols]

 Reference Signs List 1 turret 3 turret surface 5 tool holder 7 tool 9 servo motor for X axis 11 servo motor for Y axis 13 servo motor for T axis 15 numerical controller 17 servo operation command section 19 servo position analysis section 21, 23 memories 25, 27, 29 Servo amplifier

Continuation of the front page (56) References JP-A-6-246514 (JP, A) JP-A-6-170693 (JP, A) JP-A-60-167735 (JP, A) JP-A-63-278736 (JP) JP-A-4-35839 (JP, A) JP-A-63-16938 (JP, A) JP-A-5-309546 (JP, A) JP-A-2-78248 (JP, U) (58) Field surveyed (Int.Cl. ⁷ , DB name) B23Q 15/00-15/28 B23Q 16/02 B23Q 3/155-3/157 B23B 27/00-29/34 G05B 19/18-19/46

Claims (2)

(57) [Claims] 1. An X-axis direction, comprising a plurality of turret surfaces, a plurality of tools attached to at least one turret surface, and an X-axis direction separated from and approaching a work axis, and the X-axis direction and the work center line. In a turret tool selection command method for selecting and instructing an arbitrary tool in a turret which is movable in a Y-axis direction orthogonal to the Z-axis direction and is capable of turning, a turret surface number is given to each turret surface. A tool number is assigned to each tool, and the Y-axis position information corresponding to the above-mentioned tool number is set and stored in advance. When a machining program is created, an arbitrary turret surface number and a tool number can be simultaneously designated by a single program command. A turret surface number specified when the machining program is executed .
Turret plane index by comparing
The process to perform the operation and the specified tool number to the current tool number
No. and the specified tool if the comparison result does not match
The Y-axis position information corresponding to the number is read and the Y
A turret tool selection command method, comprising a step of performing axial positioning . 2. The turret tool selection command method according to claim 1, wherein the step of performing a turret surface indexing operation and the positioning in the Y-axis direction are performed.
A turret tool selection command method, wherein the step of performing turret tooling is performed simultaneously.