JP2001259970A - Machine tool with built-in tool presetter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine tool of such a configuration that a number of tools in a tool magazine are transferred to a tool presetter automatically, the tool dimensions are measured automatically, and again the tools are transferred to the tool magazine. SOLUTION: The machine tool of built-in tool presetter type includes a tool magazine storing a number of tools and a tool presetter to measure the tool dimensions, wherein tool with dimensions unmeasured are first stored in the magazine, and then the tools are transferred from the magazine to the tool presetter which performs automatic measurement of the dimensions of each tool, and again the tools are transferred to the magazine automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a machine tool having a tool magazine.

[0002]

2. Description of the Related Art In order to increase the processing accuracy of machine tools,
Tool presets are very important. Processing accuracy can be increased by performing accurate presets,
Further, the operating rate of the machine tool can be improved.

[0003] Machine tools such as machining centers that use many types of tools store many hundreds of tools in a tool magazine (tool storage).
Even in a machine tool that uses such many types of tools, the diameter and length of these many tools must be set in advance.
One book must be measured. Then, it is necessary to register the obtained data as tool information or as a tool offset amount used in a program or the like in the NC device.

[0004] In order to measure one tool at a time, tool information measured by a separate tool presetter is once recorded on a sheet, and an operator may use a means for inputting the information into the NC apparatus.

Conventionally, an operator performs a preset operation by measuring a tool with a presetter. After the preset work, the operator stores the tool after the measurement in the tool magazine, and then operates the machine tool to process the workpiece.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a tool presetter device in which a tool is randomly mounted in a tool magazine of a machine tool and installed in the tool magazine. Automatically measures the diameter, length, etc. of the tool, and automatically inputs the tool information as tool information (for example, a tool offset value) for the NC device.
It is an object of the present invention to provide a tool presetter built-in type machine tool to be registered in the C apparatus.

[0007]

A preferred solution according to the present invention is a machine tool incorporating a tool presetter according to claims 1 to 4.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a machine tool having a tool magazine.

A typical example of the present invention incorporates both a tool magazine for accommodating a large number of tools and a tool presetter for measuring the dimensions of the tools. In the tool magazine, tools whose dimensions are not measured are first accommodated. The tool is then transferred from the tool magazine to the tool presetter, the dimensions of the tool are automatically measured by the tool presetter, and the tool is automatically transferred to the tool magazine again. This is a machine tool with a built-in tool presetter.

[0010] Preferably, a tool changing device for tool presetter is provided between the tool magazine and the tool presetter,
The tool changer for tool presetter automatically transfers the tool after the dimension measurement from the tool presetter to the tool magazine and stores it in the tool magazine, and furthermore, the position in the tool magazine where the tool after the dimension measurement is stored. Is stored in the same position as that in the tool magazine that was stored before the dimension measurement.

Preferably, the tool stored in the tool magazine is automatically transferred from a standby position in the tool magazine to a measurement position in the tool presetter, and is transferred by the tool presetter to a measurement position in the tool presetter. The dimensions of the tool are automatically measured, and the tool after the dimension measurement is automatically transferred from the measurement position in the tool presetter to the standby position in the tool magazine by the tool changer for tool presetter. Be stored in the tool magazine.

Preferably, an NC device is connected to the tool presetter, tool information obtained by dimension measurement by the tool presetter is sent to the NC device, and tool information obtained by dimension measurement by the tool presetter is transmitted to the NC device. And the tool information obtained by the analysis by the NC device is N
The NC information is automatically registered as tool information for the C device in the NC device, and the NC device is connected to the tool magazine. The position information of the tool in the tool magazine after the dimension measurement is sent to the NC device. The position information of the tool in the tool magazine is automatically registered in the NC device as the position information for the NC device.

It is preferable to use a CNC device as the NC device.

[0014]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic side view of a machine tool incorporating a tool presetter, showing a preferred embodiment of the present invention.

The machine tool with a built-in tool presetter includes a column 10, a base 12, a saddle 14, a table 16
, The spindle head 18, the spindle 20, and the tool magazine 22
And a tool presetter 24. In column 10,
A base 12 is attached. On the base 12,
The saddle 14 is movably arranged. On the saddle 14, a table 16 is movably arranged. The work W is arranged on the table 16. Column 1
At 0, the spindle head 18 is movably arranged. A spindle 20 is attached to the spindle head 18. Column 1
At 0, a tool magazine 22 is attached. The tool magazine 22 has a storage section 22a for storing tools. The storage unit 22a determines the stored tool and moves the tool to a standby position α and a replacement position γ described below. Further, a tool presetter 24 is attached to the tool magazine 22. The tool presetter 24
The dimension of the tool located at the measurement position β described later is measured.
For the tool presetter 24, for example, a measuring unit such as a laser sensor is employed.

A tool changer 26 for the spindle and a tool changer 28 for the tool presetter are attached to the tool magazine 22. The tool changing device 26 for the main spindle moves the tool located at the exchange position γ in the tool magazine 22 to the main spindle 20.
Transfer to and attach. In addition, the tool changing device for the spindle 26
Removes the tool attached to the spindle 20, and transfers the tool to the exchange position γ in the tool magazine 22. The tool changing device for tool presetter 28 transfers the tool located at the standby position α in the tool magazine 22 to the measurement position β in the tool presetter 24. Further, the tool changing device for tool presetter 28 transfers the tool after the dimension measurement, the measurement of which has been completed by the tool presetter, from the measurement position β in the tool presetter to the standby position α in the tool magazine 22.
The tool changing device for tool presetter 28 is configured by using, for example, an arm (not shown) and a blipper (not shown).

The machine tool with a built-in tool presetter has a CNC device 30. The CNC device 30 includes:
It is connected to the tool presetter 24 via a cable 32. The CNC device 30 is connected to the tool magazine 22 via a cable 34. Tool information S described later is sent from the tool presetter 24 to the CNC device 30 via the cable 32. In the CNC device 30,
Via the cable 34, position information T, which will be described later, is sent from the tool magazine 22. The CNC device 30 is connected to a control unit (not shown) via a cable 36. The control unit adjusts the amount of movement of the saddle 14, the table 16, and the spindle head 18 based on CNC device tool information described later. Further, the control unit controls the storage unit 22a of the tool magazine 22 based on the position information for the CNC device described later, and determines a desired tool. Further, the control unit includes:
The tool is measured by operating the tool presetter 24. The tool dimensions are measured in the tool magazine 22.
May be performed during the operation or during the stop.

Next, a preferred example of a method of using a machine tool with a built-in tool presetter will be described with reference to FIGS.

FIG. 2 is an enlarged schematic view of a part of a machine tool with a built-in tool presetter.

First, a tool 38 required for machining the work W
a, 38b, 38c, 38d, 38e, 38f, 38
g, 38h, 38i, 38j, 38k, and 38l are mounted in the storage section 22a of the tool magazine 22 and stored. The place where the tools 38a to 38l are attached to the storage section 22a is arbitrary. The tools 38a to 38l stored in the storage section 22a of the tool magazine 22 do not need to be tools that have been preset. Next, the respective positions of the tools 38a to 381 in the storage section 22a of the tool magazine 22 are registered in the CNC device 30 as position information. Further, processing steps and the like are input to the CNC device 30. And
Activate the tool presetter built-in machine tool to start automatic operation.

When the automatic operation starts, the tool magazine 2
The second storage section 22a is operated, and the tool 38a used first in the processing of the work W is automatically indexed to the standby position α. As shown in FIG. 3, the tool 38a before the dimension measurement, which has been indexed to the standby position α, is automatically transferred from the standby position α to the measurement position β in the tool presetter 24 by the tool changing device for tool presetter 28. Is done. And
As shown in FIG. 4, the dimensions of the tool 38a are automatically measured by the tool presetter 24. Tool information S (for example, tool offset data) of the tool 38a obtained by the measurement by the tool presetter 24 is sent to the CNC device 30 via the cable 32. The tool information S sent to the CNC device 30 is analyzed by the CNC device 30. The tool information S analyzed by the CNC device 30 is CN
It is automatically registered in the CNC device 30 as C device tool information. Further, the storage portion 22a of the tool magazine 22
Is operated, and the tool 38b to be used second in the processing of the workpiece W is automatically indexed to the standby position α. In FIG. 4, the tools before the dimension measurement are indicated by lowercase letters of the alphabet (tool 38b to tool 381), and the tools after the dimension measurement are indicated by uppercase letters of the alphabet (tool 38a). In FIGS. 5 to 11 to be described later, the tools before the dimension measurement are indicated by lowercase letters, and the tools after the dimension measurement are indicated by uppercase letters.

Next, as shown in FIG. 5, the tool changer 28 for tool presetter uses a tool 38 before dimension measurement.
b is automatically transferred from the standby position α in the tool magazine 22 to the measurement position β in the tool presetter 24. Further, the tool 38a after the dimension measurement is automatically transferred from the measurement position β in the tool presetter 24 to the standby position α of the tool magazine 22 by the tool presetter tool changing device 28. Then, the position information T of the tool 38 a in the tool magazine 22 after the dimension measurement is sent to the CNC device 30 via the cable 34. The position information T sent to the CNC device 30 includes CNC information as position information for the CNC device.
It is automatically registered in the device 30. In FIG. 5 and FIGS. 6 to 11 to be described later, the order of the tools used for machining is indicated next to the capital letter of the tools stored in the storage portion 22a of the tool magazine 22 after the dimension measurement. (For example, the tool 38a is indicated as “A1” because it is used first).

Then, as shown in FIG. 6, the dimensions of the tool 38b are automatically measured by the tool presetter 24. Tool information S (for example, tool offset data) of the tool 38b obtained by the dimension measurement by the tool presetter 24 is sent to the CNC device 30 via the cable 32. The tool information S sent to the CNC device 30 is analyzed by the CNC device 30. The tool information S analyzed by the CNC device 30 is C information as tool information for the CNC device.
It is automatically registered in the NC device 30. Further, the storage section 22a of the tool magazine 22 is operated, and the tool 38g used third in the processing of the work W is automatically indexed to the standby position α. At the same time, the tool 38a is automatically indexed to the exchange position γ in the tool magazine 22.

Next, as shown in FIGS. 7 and 1, the tool 38g before the dimension measurement is moved from the standby position α in the tool magazine 22 to the measurement position in the tool presetter 24 by the tool presetter tool changing device 28. Automatically transferred to β. Further, the tool 38b after the dimension measurement is automatically transferred from the measurement position β in the tool presetter 24 to the standby position α of the tool magazine 22 by the tool presetter tool changing device 28. The position information T of the tool 38b in the tool magazine 22 after the dimension measurement is transmitted to the cable 34.
Is sent to the CNC device 30 via the. The position information T sent to the CNC device 30 includes C as position information for the CNC device.
It is automatically registered in the NC device 30. With it,
The tool 38a is moved to the spindle 20 by the spindle tool changer 26.
Automatically transferred to the main shaft 20 (FIG. 1). When the tool 38a is attached to the main shaft 20, the main shaft 20 is rotated to process the work W.

Then, as shown in FIG. 8, the dimensions of the tool 38g are automatically measured by the tool presetter 24. Tool information S (for example, tool offset data) of the tool 38g obtained by the dimension measurement by the tool presetter 24 is sent to the CNC device 30 via the cable 32. The tool information S sent to the CNC device 30 is analyzed by the CNC device 30. The tool information S analyzed by the CNC device 30 is C information as tool information for the CNC device.
It is automatically registered in the NC device 30. Further, the storage portion 22a of the tool magazine 22 is operated, and the tool 38h used fourth in the processing of the work W is automatically indexed to the standby position α.

Next, as shown in FIG. 9, the tool 38 before the dimension measurement is
h is automatically transferred from the standby position α in the tool magazine 22 to the measurement position β in the tool presetter 24. Further, the tool 38g after the dimension measurement is automatically transferred from the measurement position β in the tool presetter 24 to the standby position α of the tool magazine 22 by the tool presetter tool changing device 28. Then, the position information T of the tool 38g in the tool magazine 22 after the dimension measurement is sent to the CNC device 30 via the cable 34. The position information T sent to the CNC device 30 is automatically registered in the CNC device 30 as the position information for the CNC device.

Then, as shown in FIG.
Is automatically measured by the tool presetter 24. Tool information S (for example, tool offset data) of the tool 38h obtained by the dimension measurement by the tool presetter 24 is sent to the CNC device 30 via the cable 32. The tool information S sent to the CNC device 30 is analyzed by the CNC device 30. The tool information S analyzed by the CNC device 30 is C information as tool information for the CNC device.
It is automatically registered in the NC device 30. Further, the storage section 22a of the tool magazine 22 is operated, and the tool 381 used fifth in the processing of the work W is automatically indexed to the standby position α. At the same time, the tool 38b is automatically indexed to the exchange position γ in the tool magazine 22.

Next, as shown in FIG. 11, a tool changer 28 for tool presetter is used to
8l is automatically transferred from the standby position α in the tool magazine 22 to the measurement position β in the tool presetter 24. Further, the tool 38h after the dimension measurement is automatically transferred from the measurement position β in the tool presetter 24 to the standby position α of the tool magazine 22 by the tool presetter tool changing device 28. Then, the position information T of the tool 38h in the tool magazine 22 after the dimension measurement is sent to the CNC device 30 via the cable 34. The position information T sent to the CNC device 30 includes CNC information as position information for the CNC device.
It is automatically registered in the device 30. At the same time, the tool 38a is detached from the spindle 20 and automatically transferred to the exchange position γ in the tool magazine 22 by the tool exchange device 26 for the spindle. Then, the position information T of the used tool 38 a in the tool magazine 22 is sent to the CNC device 30 via the cable 34. The position information T sent to the CNC device 30 includes CNC information as position information for the CNC device.
It is automatically registered in the device 30. Further, the tool 38b is automatically transferred to the main shaft 20 by the main tool changer 26, and is attached to the main shaft 20. When the tool 38b is attached to the main shaft 20, the main shaft 20 is rotated to process the work W.

Thereafter, similarly, during the machining of the work W, the preset work, that is, the measurement of the tool is performed.

The present invention is not limited to the above embodiment.

A configuration may be adopted in which not only the dimensions of the tool before use in machining the work are measured, but also the dimensions of the tool after use in machining the work are re-measured as necessary. When the re-measurement as described above is performed, the tool information of the tool used for machining the work is updated, so that the machining is performed again using the tool used for machining the work. Precise processing can be performed.

In the above embodiment, the tool after the dimension measurement is automatically transferred from the measurement position in the tool presetter to the tool magazine and stored in the tool magazine.
At this time, the position in the tool magazine where the tool after the dimension measurement is stored is not limited to be stored in the same position as the position in the tool magazine that was stored before the dimension measurement. However, the configuration is not limited to such a configuration, and the position in the tool magazine in which the tool after the dimension measurement is stored is always stored at the same position as the position in the tool magazine stored before the dimension measurement. Is also good.

For example, first, the storage section of the tool magazine is operated, and the tool before the dimension measurement is automatically indexed to the standby position. The tool before the dimension measurement, which is determined at the standby position, is automatically transferred from the standby position to the measurement position in the tool presetter by the tool changing device for tool presetter. Then, the dimensions of the tool are automatically measured by the tool presetter.

After the dimension measurement, the tool is transferred from the measurement position of the tool presetter to the standby position in the tool magazine by the tool changer for tool presetter. The tool magazine is transferred from the standby position in the tool magazine to the measurement position in the tool presetter until the dimensions of the tool transferred to the measurement position are measured and transferred to the standby position in the tool magazine. Do not index the tool without operating the storage section. In this way, the position in the tool magazine where the tool after dimension measurement is stored is stored at the same position as the position in the tool magazine that was stored before the dimension was measured. While the tool is transferred from the standby position in the tool magazine to the measurement position in the tool presetter, and the dimensions of the tool transferred to the measurement position are measured and transferred to the standby position in the tool magazine, When indexing a tool by operating the magazine storage section, return the storage section to the state before indexing, then return the tool after dimension measurement to the tool magazine, and always The position in the tool magazine where the tool is stored is stored in the same position as the position in the tool magazine that was stored before the dimension measurement. With this configuration, after measuring the tool with the tool presetter, returning the tool to the tool magazine, it is necessary to register in the CNC device where the tool after the measurement has been stored in the tool magazine. There is no. Therefore, there is no need to send position information from the tool magazine to the CNC device, which is useful when a simpler configuration of the tool magazine is desired. Further, since it is not necessary for the operator to register in the CNC device where the tool after the measurement is stored in the tool magazine, “the actual position of the tool in the tool magazine after the measurement and the tool of the tool after the measurement” Conventionally, human errors such as "the positions registered in the CNC device in the magazine are different from each other" are prevented.

[0036]

According to the present invention, a large number of tools required for machining a work can be stored in a tool magazine, and the dimensions of the large number of tools can be automatically measured by a tool presetter.

Further, according to the present invention, the tool whose dimensions have been measured by the tool presetter can be automatically stored in the tool presetter.

Further, according to the present invention, even if the preset operation has not been completed for all of a large number of tools required for processing the work, the processing of the work is started, and during the processing of the work, the tool to be used later is processed. Can be automatically measured by the tool presetter. For this reason, work time can be shortened.

Further, according to the present invention, the dimension measurement of the tool is automatically performed, the tool information obtained by the dimension measurement is analyzed by the NC apparatus, and the tool information is automatically stored in the NC apparatus as tool information for the NC apparatus. Is registered in the tool magazine, and the position information of the tool in the tool magazine after the dimension measurement is stored in the NC device.
Since the information is automatically registered as the apparatus position information, it is possible to reduce the work time and reduce the human error.

Further, according to the present invention, the dimensions of the tool can be re-measured during the process of machining the work. Processing accuracy can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a tool presetter built-in type machine tool showing a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram in which a part of a tool presetter built-in type machine tool is enlarged.

FIG. 3 is an enlarged schematic view of a part of a tool presetter-incorporated machine tool.

FIG. 4 is an enlarged schematic view of a part of a tool presetter-incorporated machine tool.

FIG. 5 is an enlarged schematic view of a part of a machine tool with a built-in tool presetter.

FIG. 6 is an enlarged schematic view of a part of a tool presetter built-in machine tool.

FIG. 7 is an enlarged schematic view of a part of a tool presetter built-in type machine tool.

FIG. 8 is an enlarged schematic view of a part of a tool presetter-incorporated machine tool.

FIG. 9 is an enlarged schematic view of a part of a tool presetter-incorporated machine tool.

FIG. 10 is an enlarged schematic view of a part of a tool presetter-incorporated machine tool.

FIG. 11 is an enlarged schematic view of a part of a machine tool with a built-in tool presetter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Column 20 Main shaft 22 Tool magazine 24 Tool presetter 26 Tool changing device for main shaft 28 Tool changing device for tool presetter 30 CNC device 32, 34, 36 Cable 38a-38l Tool S Tool information T Position information α Standby position β Measurement position γ exchange position

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3C002 CC07 HH06 JJ01 JJ04 KK01 LL01 3C029 EE07 EE20 9A001 BB06 HH34 JJ48 KK37 KK54 LL09

Claims (4)

[Claims] 1. A tool magazine for accommodating a large number of tools and a tool presetter for measuring the dimensions of the tools are incorporated. The tool magazine accommodates the tools whose dimensions are not measured first, and then the tools Is transferred from the tool magazine to the tool presetter, the dimensions of the tool are automatically measured by the tool presetter, and the tool is automatically transferred to the tool magazine again. Mold machine tools. 2. A tool changing device for tool presetter is provided between the tool magazine and the tool presetter, and the tool after the dimension measurement is automatically transferred from the tool presetter to the tool magazine by the tool changing device for tool presetter. And stored in the tool magazine, and the position in the tool magazine where the tool after the dimension measurement is stored is stored in the same position as the position in the tool magazine that was stored before the dimension measurement. The machine tool with a built-in tool presetter according to claim 1. 3. A tool changing device for a tool presetter is provided between the tool magazine and the tool presetter, and the tools stored in the tool magazine are moved from the standby position in the tool magazine by the tool changing device for the tool presetter. It is automatically transferred to the measurement position in the presetter, the tool presetter automatically measures the dimensions of the tool transferred to the measurement position in the tool presetter, and furthermore, by the tool changer for tool presetter, The tool after dimension measurement is automatically transferred from a measurement position in the tool presetter to a standby position in the tool magazine and stored in the tool magazine. Tool presetter built-in machine tool. 4. An NC device is connected to the tool presetter, tool information obtained by dimension measurement by the tool presetter is sent to the NC device, and tool information obtained by dimension measurement by the tool presetter is transmitted by the NC device. The tool information obtained by the analysis and the analysis by the NC device is automatically registered in the NC device as the tool information for the NC device, and the NC device is connected to the tool magazine, and the tool of the tool after the dimension measurement is performed. The position information in the magazine is sent to the NC device, and the position information in the tool magazine of the tool after the dimension measurement is automatically registered in the NC device as position information for the NC device. 4. The machine tool with a built-in tool presetter according to any one of the above items 3.