KR20160124503A - machine tool including automatic tool changer capable of innovatively reducing tool change time - Google Patents

machine tool including automatic tool changer capable of innovatively reducing tool change time Download PDF

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Publication number
KR20160124503A
KR20160124503A KR1020150055198A KR20150055198A KR20160124503A KR 20160124503 A KR20160124503 A KR 20160124503A KR 1020150055198 A KR1020150055198 A KR 1020150055198A KR 20150055198 A KR20150055198 A KR 20150055198A KR 20160124503 A KR20160124503 A KR 20160124503A
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South Korea
Prior art keywords
tool
spindle
port
additional
magazine
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KR1020150055198A
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Korean (ko)
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KR101787602B1 (en
Inventor
송용태
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(주)대명이엔지
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2220/00—Machine tool components
    • B23Q2220/002—Tool turrets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

The machine tool according to the present invention can be mounted on a spindle using an ATC including a tool which can reduce a tool change time by moving a tool necessary for a next work in advance to a position where it can be easily exchanged The tool being used for the current operation is clamped by a tool pot and a spindle to be unlamped so that tool ports equipped with the tool to be used for the next task are set to perform tool exchange The tool change time can be significantly reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a machine tool including an automatic tool changer capable of drastically reducing tool change time,

The present invention relates to a machine tool, and more particularly, to a tool changer that can reduce the tool change time drastically by eliminating the difference between the replacement time of a tool located at a remote location and the replacement time of a tool located at a nearby location, To a machine tool including the apparatus.

Recently, complex machine tools capable of performing various tasks have been developed and used in industrial fields. A single machine tool has various machining functions such as drilling holes, cutting screws, digging, cutting surfaces, etc. To this end, an automatic tool changer (automatic tool changer, automatic tool changer (hereinafter referred to as " ATC ") is required. In recent years, ATC has also emerged that allows the selection of hundreds of tools.

Generally, in such a complex machine tool, complicated procedures are required to exchange tools, and it takes a lot of time. Although the machining time has been drastically reduced due to the automatic tool exchange through numerical control (hereinafter, referred to as 'NC' in this specification), the time loss due to the difference in the exchange time between the tools located at a long distance and at a short distance .

An object of the present invention is to provide a machine tool including an ATC capable of reducing a tool change time by moving a tool necessary for a next work in advance to a position where the tool is easily exchanged during the current work progress.

Another object of the present invention is to provide an apparatus and a method for clamping a tool used in a current operation by being clamped by a spindle and a tool pot mounted on a spindle to be unlamped, And to provide a machine tool capable of reducing the tool change time because the tool ports on which the tools are mounted perform a tool change in a single set.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

According to an aspect of the present invention, there is provided a machine tool comprising: a spindle; A first position adjuster for controlling a position of the spindle; Each of which is mounted on the spindle so that a first tool used for a first operation is positioned to be unlamped and a tool pot positioned next to the first tool pot, And a second tool port to which a second tool to be clamped by a spindle to be used in a second operation to be carried out subsequent to the first operation is mounted, Tool magazine; A second position adjustment section for controlling a position of the plurality of tool pot sets in the tool magazine; And changing the position of the spindle and the position in the tool magazine of the plurality of tool sets by controlling the first position adjusting section and the second position adjusting section, Wherein the first tool is unclamped from the spindle to the first tool port and the second tool is moved from the second tool to the second tool port when the first operation is completed, And a control block for performing a tool exchange step of clamping the spindle to the spindle from the port.

Wherein the machine tool further comprises a third position adjustment section for controlling the position of the entire tool magazine, wherein the control block controls the third position adjustment section to further change the position of the entire tool magazine, And performing the tool exchange step.

 The tool changing step includes horizontally moving the spindle to the first tool port and then vertically moving in a first direction to unclamp the first tool mounted on the spindle to the first tool port; Horizontally moving at least one of the spindle and the second tool pot to match the horizontal position of the spindle and the second tool port; And vertically moving the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the second tool port to the spindle.

Wherein the machine tool further comprises at least one additional spindle and at least one additional first position adjuster corresponding to the at least one additional spindle, And may further include additional first and second tool ports located adjacent to the second tool port and corresponding to the additional spindle. At this time, the control block further controls the position of the additional first position adjuster to further change the position of the at least one additional spindle so that the additional first and second tool pots To move to the tool change standby position corresponding to the additional spindle and perform the tool clamping and unclamping operations using the additional first and second tool ports in performing the tool change step so that the tool of the additional spindle is used for the next operation Can be replaced with a tool.

The tool change preparation step may include moving a set of tool pots configured of the first and second tool ports and the additional first and second tool ports to the tool change standby position. Wherein the tool changing step includes moving the at least one additional spindle with the spindle horizontally to the additional first tool port and then vertically moving the first tool pot in a first direction, Unclamping an additional first tool port; Horizontally moving the additional spindle with the spindle or horizontally moving the additional second tool port with the second tool port to move the additional spindle and the additional spindle to the second tool port and the additional second tool port, To match the horizontal position of the object; And vertically moving the additional spindle with the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the additional second tool port to the spindle .

According to another aspect of the present invention, there is provided a machine tool comprising: a spindle; A first position adjuster for controlling a position of the spindle; A tool magazine including a plurality of tool ports; A second position adjuster for controlling the positions of the plurality of tool pots in the tool magazine; A tool carrier including a tool port set including a first tool port on which a tool mounted on the spindle is to be unclamped and a second tool port on which a tool to be clamped by the spindle is to be mounted; A third position adjuster for controlling a position and an attitude of the tool carrier; And a controller for controlling the first position adjusting section, the second position adjusting section, and the third position adjusting section to control the position of the spindle, the position of the plurality of tool ports in the tool magazine, and the position and posture of the tool carrier And a changeable control unit.

As a result, the control block clamps the tool carrier to a tool change standby state by clamping a second tool to be used in a second operation to be performed subsequent to the first operation during the first operation to the second tool port in the tool magazine, Wherein the first tool is unlocked from the spindle to the first tool port when the first task is completed, the second tool is moved from the second tool port to the first tool port, Clamping the tool to the spindle, and unclamping the first tool unclamped to the first tool port to an empty tool port of the plurality of tool ports.

Wherein the tool replacement preparation step includes the steps of controlling the second position adjustment unit to move the second tool to a position at which the tool carrier performs clamping; Clamping the second tool to the first tool pot by controlling the third position adjuster to adjust the position and posture of the tool carrier; And controlling the third position adjuster to move the tool carrier to the tool change standby position.

Clamping the first tool to the first tool port comprises adjusting at least one of a position and an attitude of the tool carrier and horizontally moving the spindle to the first tool port and then vertically moving And unclamping the first tool mounted on the spindle to the first tool port.

The step of clamping the second tool to the spindle may include adjusting at least one of a horizontal position of the spindle, a horizontal position of the second tool port, and a posture of the tool carrier, To match the horizontal position of the object; And vertically moving the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the second tool port to the spindle.

The machine tool may further comprise at least one additional spindle and at least one additional first position adjuster corresponding to the at least one additional spindle. The tool carrier may further comprise at least one additional first and second tool port corresponding to the at least one spindle, each of the first and second tool ports being in a set with the first and second tool ports.

Wherein the control block further controls the at least one additional first position adjuster in the tool change step to adjust the position of the additional spindle with the spindle so that the at least one additional Clamping a tool mounted on the spindle to the at least one additional first tool port and clamping the tool mounted on the at least one additional second tool port with the clamping of the second tool to the at least one additional spindle .

The control block is operable to unclamp a tool unclamped to the at least one additional first tool port with the unclamping of the first tool to a tool port forming a set with the empty tool port in the tool magazine .

The machine tool according to the present invention can reduce the tool change time by moving the tool necessary for the next work in advance to the easy-to-change position during the current work progress.

The machine tool according to the present invention is characterized in that a tool mounted on a spindle to be clamped by a tool pot and a spindle to be unlamped and being used for a current operation is clamped The second tool port on which the tool to be used is mounted constitutes one set to perform the tool change, so that the tool change time can be reduced.

The above-described effect means that the tool change time can be drastically reduced by eliminating the difference between the replacement time of a tool located at a remote location and the replacement time of a tool located at a nearby location when the tool is replaced. That is, the machine tool according to the present invention has a higher operation efficiency than the existing machine tools, and has the effect of lowering the processing unit cost and the unit cost of the produced product.

1 is a block diagram of a machine tool according to an embodiment of the present invention.
2 is a flowchart showing an example of a method of driving a machine tool according to the present invention.
3 is a flowchart showing another example of a machine tool driving method according to the invention.
FIG. 4 is a conceptual view illustrating a process of performing the step of performing the machine tool driving method shown in FIG.
5 is a perspective view of an automatic tool changer assembly included in a machine tool according to the present invention.
6 is a plan view of an automatic tool changer assembly included in a machine tool according to the present invention.
FIG. 7 is a conceptual view illustrating a process in which another example of the method of driving a machine tool according to the present invention is performed.
FIG. 8 and FIG. 9 are conceptual diagrams illustrating a process of performing another example of the method of driving a machine tool according to the present invention.
10 is a block diagram of a machine tool according to another embodiment of the present invention.
11 is a flowchart showing still another example of the method of driving a machine tool according to the present invention.
12 is a flowchart showing still another example of a method of driving a machine tool according to the present invention.
FIG. 13 is a diagram conceptually illustrating a process in which the machine tool driving method shown in FIG. 12 is performed.
FIG. 14 is a conceptual view illustrating a process in which another example of the method of driving a machine tool according to the present invention is performed.
FIGS. 15 and 16 are conceptual diagrams illustrating a process in which another example of the method of driving a machine tool according to the present invention is performed.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a lighting apparatus according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The machine tool according to the present invention includes an automatic tool changer capable of drastically reducing the tool change time, so that it is possible to reduce the working time and the production cost of the product compared to the conventional machine tool. The reduction of the tool change time in the machine tool according to the present invention is characterized in that a tool necessary for the next work is moved to a position where it can be easily exchanged during the current work progress and a feature that the tool used in the present work is unclamped ) Tool pots and tool pots, which are clamped by a spindle and equipped with tools to be used for the next task, are made possible by a single set of tool changes.

1 is a block diagram of a machine tool 100 according to an embodiment of the present invention. 1, the machine tool 100 includes a plurality of spindles 100, a plurality of first position control units 120, a tool magazine 130, a second position adjustment unit 140, a third position adjustment unit 150 ), And a control block 160. The components shown in FIG. 1 are not essential, so that the machine tool 100 according to the present invention may have more or fewer components. Hereinafter, the components will be described in order.

The plurality of spindles 110 may perform various operations through the mounted tool while rotating. The plurality of spindles 110 may include a first spindle 111 and a second spindle 112. Unlike the drawings, the machine tool 100 may include three or more spindles. According to another embodiment, the machine tool 100 may include only one spindle.

The plurality of first position adjustment units 120 may control the positions of the plurality of spindles 110. Such position control may include position control for tool change or maintenance, as well as where to work with the tool. The plurality of first position adjustment units 120 may include a position adjustment unit 121 for controlling the first spindle 111 and a position adjustment unit 122 for controlling the position of the second spindle. However, depending on the number of spindles included in the machine tool 100, one or three or more position adjustment parts may be included in the machine tool 100.

The tool magazine 130 includes a plurality of tool ports. The plurality of tool ports comprise a plurality of tool port sets. Each of the plurality of tool ports is comprised of two ports, one of which is mounted on the current spindle, so that the tool being used for an ongoing task (e.g., the first task) is to be clamped (Hereinafter referred to as a "first tool port") and the other is a tool port (hereinafter referred to as a "tool port") equipped with a tool to be unclamped by a spindle for use in the next work, Quot; second tool port ").

The machine tool (100) includes a plurality of spindles, and a tool change to the plurality of spindles can be simultaneously performed. In this case, each of the plurality of tool ports includes a plurality of first tool ports to be unclamped with a tool mounted for a current operation on a plurality of spindles, and a plurality of spindles clamped to the plurality of spindles, And a second tool port.

In the present specification, 'first tool port' refers to a tool port to be unclamped by a tool currently used for a work currently mounted on a spindle, and 'second tool port' Means a tool port on which a tool to be clamped to the spindle is mounted for use in the work to be performed. Hereinafter, the first job means a work currently being performed using a tool mounted on a spindle, and the second job means a work to be performed next to an ongoing work.

The second position adjustment unit 140 controls the position of the plurality of tool pot sets in the machine tool 100. For example, the second position adjustment unit 140 may rotate the tool magazine 130 to move a specific tool port set to a specific position.

The third position adjustment unit 150 may control the position of the entire tool magazine 130. For example, the third position adjuster 150 may move the entire position of the tool magazine 130 in at least one of a left-right direction and a vertical direction.

The control block 160 controls the operation of the machine tool 100 as a whole. The operation 100 of the machine tool may include various operations using the mounted tool. In particular, the control block 160 may control the plurality of first position adjusters 120 and the second position adjusters 140 to change the position of the spindle and the position of the plurality of tool sets in the tool magazine A tool change preparation step for moving the tool port set corresponding to the second operation to the tool change standby position during the first operation, and when the first operation is completed, the first tool is moved from the spindle to the tool change standby position, 1 " tool clamping the first tool to the tool port and clamping the second tool to the spindle from the second tool port.

In some cases, the control block 160 may further perform the tool change preparing step and the tool changing step by further controlling the third position adjusting part 150 to further change the position of the tool magazine 130. [

The control block 160 may be implemented as one controller or a plurality of controllers for controlling various components. The first position adjusting unit 120, the second position adjusting unit 140, and the third position adjusting unit 150 may be included in the control block.

The combination of at least a portion of the tool magazine 130, the second position adjuster 140, the third position adjuster 150, and the control block 160 may be replaced by an automatic tool changer (automatic tool changer) , ATC).

2 is a flowchart showing an example of a method of driving the machine tool 100 according to the present invention. Hereinafter, the driving method will be described with reference to necessary drawings.

First, during the first operation using the first tool mounted on the spindle 111, a tool exchange command is received by the control block 160 (S100). The tool change command is a command to replace the first tool mounted on the current spindle 111 with a second tool to be used in the next work.

When a tool change command is received, the control block 160 controls the first tool port to be unclamped and the second tool port to be unclamped during the first operation using the first tool mounted on the spindle 111, The tool port set including the second tool port to be used in the second work to be performed in the future is moved to the tool change position (S110).

This movement, on the other hand, can include movement of at least one of the horizontal and vertical directions of the tool magazine 130 itself with the tool ports mounted. And, such movement may include movement of at least one of a horizontal and a vertical direction of the tool ports within the tool magazine 130.

As described above, according to the method of driving a machine tool according to the present invention, the tool change time can be reduced by performing preparation for replacement of the tool necessary for the next operation during the operation progress.

Then, the first operation is completed. Then, the control block 160 unclamps the first tool mounted on the spindle 111 to the first tool port (S120). In this case, the unlocking operation can be performed by changing the position of the spindle 111 by the control block 160 in the up, down, left, and right directions. In some cases, movement of the tool magazine 130 itself to the tool unclamping or movement of the tool port in the tool magazine 130 may be required.

After the unclamping operation, the control block 160 clamps the second tool mounted on the second tool port to the spindle 111, moves the spindle 111 to the working position, (S130). ≪ / RTI > In this clamping operation, the movement of the spindle in the up and down direction and in the left and right direction may be required. In some cases, movement of the tool magazine 130 itself to the tool clamping or movement of the tool port in the tool magazine 130 may be required.

3 is a flowchart showing another example of a method of driving the machine tool 100 according to the present invention. FIG. 4 is a conceptual view illustrating a process in which the method of driving the machine tool 100 shown in FIG. 3 is performed. Meanwhile, the method of driving the machine tool 100 of FIG. 3 may be an example of the method of driving the machine tool 100 of FIG. Hereinafter, the driving method will be described with reference to necessary drawings.

First, during the first operation using the first tool mounted on the spindle 111, a tool exchange command is received by the control block 160 (S200). The control block 160 then rotates the tool magazine 130 to set the corresponding tool port set (i.e., the first tool port where the first tool is to be unclamped and the second tool port to be used for the second work to be performed in the future) The tool port set including the port) to the tool change position (S210). In this case, the positional movement of the tool magazine 130 itself is not performed.

4A shows a state in which the control block 160 controls the second position adjuster 140 while the first tool (red circle) is mounted on the spindle 111 to perform the first work, 2 Move the tool port set consisting of the second port equipped with the tool (black triangle) to be used for the operation and the tool port to be unclamped by the first tool to the tool exchange position.

The control block 160 controls the first position adjuster 121 so that the spindle 111 moves horizontally as the first tool is moved to the tool change position The position of the spindle 111 is matched to the first tool port and the first tool is unclamped to the first tool port through the upward movement of the spindle 111 in step S220.

Optionally, the first tool unclamping may be performed through a downward movement of the spindle 111 in the vertical direction. Optionally, the control block 160 may further perform a vertical movement of the spindle 111 during positional matching of the spindle 111 to the first tool port. On the other hand, when the upward movement of the spindle 111 in the vertical direction is referred to as a first direction, the downward movement in the vertical direction opposite thereto can be referred to as a second direction. It may also be the opposite. Which can be applied throughout this specification.

4 (b) shows a state in which the spindle 111 is moved to a position where it matches the first tool port of the corresponding set of tool pots and then the first tool port of the first tool mounted on the spindle 111 Lt; RTI ID = 0.0 > unclamping < / RTI > For reference, a white circle in FIG. 4 (b) is a symbol indicating that the spindle 111 rises. This is the same in the embodiments to be discussed later.

After the unclamping of the first tool is performed, the control block 160 controls the first position adjuster 121 to move the spindle 111 to a position corresponding to the second tool port of the corresponding tool pot set And then moves down in the vertical direction so that the spindle 111 clamps the second tool mounted on the second tool port (S230).

Optionally, the second tool clamping performed in step S230 may be performed through a downward movement of the spindle 111 in the vertical direction. The control block 160 may further perform the vertical movement of the spindle 111 when moving the spindle 111 to a position corresponding to the second tool port .

4 (c) shows a state in which the spindle 111 is moved to a position where it matches the second tool port of the corresponding set of tool pots, and then is moved in the vertical direction for clamping of the second tool mounted on the second tool port . 4 (b), the black circles indicate that the spindle 111 is descending. This is the same in the embodiments to be discussed later.

When the second tool is clamped to the spindle 111, the control block 160 moves the spindle 111 to a working position and then performs a second operation using the second tool at step S240. 4 (d) shows that the spindle 111 clamped with the second tool moves to the working position.

In order to perform a third operation to be performed next to the second operation in the future, the control block 160 controls the tool port on which the tool to be used for the third operation is mounted and the tool port to which the second tool is to be unclamped 4 (a) to 4 (d) for moving the set of tool ports corresponding to the third operation to the tool change position, including the step of FIG.

5 is a perspective view of an automatic tool changer assembly included in the machine tool 100 according to the present invention. 6 is a top view of an automatic tool changer assembly included in the machine tool 100 according to the present invention.

The assembly includes a tool magazine 130 (not shown in the figure) having a plurality of tool ports connected in series, and serrated connecting means 141 and 142 provided at both ends of the tool magazine 130. A second position adjustment unit 140 and a third position adjustment unit 150 implemented as a cylinder capable of moving the entire position of the tool magazine 130 to the left and right. Although not shown in the drawing, the second position adjustment unit 140 may include a rotational force generating means such as a motor for providing a rotational force to the connecting means 141 and 142, or a gear for transmitting a rotational force from another rotational force generating means And a rotational force transmission means

5 and 6, the ATC assembly is moved in the left-right direction of the tool magazine 130 by the cylinder 150, Only the position adjustment on the horizontal plane is performed for the tool change, such as the movement of the tool port sets 131 included in the magazine 130. [ However, in another example of the present invention, further movement of the tool magazine in the vertical direction or vertical movement of the tool port set may be performed for tool change.

FIG. 7 is a conceptual view illustrating a process in which another example of the method of driving the machine tool 100 according to the present invention is performed.

In the example shown in Fig. 7, the tool mounted on the spindle 111 is exchanged from the first tool to the second tool in accordance with a process substantially similar to the example shown in Fig. Therefore, the characteristic of the example of FIG. 7 will be described focusing on the difference from the example shown in FIG.

In the example of FIG. 7, the horizontal movement of the tool set, the horizontal movement of the spindle 111, and the unclamping and clamping of the tool through the vertical lift-down are performed as the tool magazine 130 rotates.

7, the first tool is unclamped to the first tool port, and then the spindle 111 is rotated by the rotation of the tool magazine 130, as shown in FIG. 7 (c) Is different from the example shown in Fig. 4 in that the position of the second tool is matched to the position of the second tool port on which the second tool is mounted.

FIG. 8 and FIG. 9 are conceptual diagrams illustrating a process in which another example of the method of driving the machine tool 100 according to the present invention is performed.

In the example shown in Fig. 8, the tools mounted on the spindles 111 and 112 are exchanged from the first tool to the second tool, respectively, according to a mechanism similar to the example shown in Fig. Therefore, the characteristic of the example of FIG. 8 will be described focusing on the difference from the example shown in FIG.

In the example of Fig. 8, the horizontal movement of the set of tool ports, the horizontal movement of the spindle 111, and the unclamping and clamping of the tool through the vertical lift-down are performed as the tool magazine 130 rotates. However, the example of Fig. 8 differs from the example of Fig. 4 in that tool exchange for a plurality of spindles 111 and 112 is performed simultaneously.

The movement of the spindle 111 and the additional spindle 112 can be performed by the first position adjusting unit 121 and the additional first position adjusting unit 122. The tool port set further includes two additional first and second tool ports located next to the first and second tool ports. In the tool exchange preparation step, the tool port set including the above-described four tool ports is moved to the tool change position corresponding to the spindles 111 and 112, as shown in Fig. 8 (a).

8 (b) shows that the spindles 111 and 112 simultaneously rise in the vertical direction so that the first tool mounted on the spindles 111 and 112 is unclamped to the second tool port and the additional second tool port . Fig. 8 (c) shows that the horizontal movement of the spindles 111 and 112 for clamping of the tool is performed.

8 (d) shows that the second tool ports of the tool port set and the second tools mounted on the additional second tool port are simultaneously moved to the spindles (111 and 112) by the vertical descent of the spindles 111 and 112 111 and 112, and then the spindles 111 and 112 move to the working position.

The example of FIG. 9 only differs from the example of FIG. 8 in that the tool magazine rotates to match the position of the spindles 111 and 112 to the position of the second tool port and the additional tool port for tool clamping. Therefore, the example of FIG. 9 can be easily derived from the example of FIG. 8, and a detailed description thereof will be omitted.

Meanwhile, in the examples of Figs. 8 and 9, the tool exchange is described for two spindles, but in another example of the present invention, tool exchange for three or more spindles may be performed at the same time. Of course, the tool change mechanism may be the same as or similar to the example of Figs.

10 is a block diagram of a machine tool 200 according to another embodiment of the present invention. 1, the machine tool 200 includes a plurality of spindles 210, a plurality of first position controllers 220, a tool magazine 230, a second position adjuster 240, a tool carrier 250, A third position adjustment unit 260, and a control block 270. [ 10 are not essential, the machine tool 200 according to the present invention may have more or less components than those of the present invention. Hereinafter, the components will be described in order.

In the machine tools 100 and 200 of FIGS. 1 and 10, the spindles 110 and 210, the first position adjusters 120 and 220, the tool magazines 130 and 230, The configuration and function (or operation) of the communication devices 140 and 240 may be the same or similar to each other. The control blocks 160 and 270 also control overall the role of the machine tools 100 and 200. Therefore, detailed description of the components corresponding to each other will be omitted, and differences between the machine tools 100 and 200 of FIGS. 1 and 10 will be described.

The machine tool 200 of FIG. 10 further includes a tool carrier 250 and includes a third position controller 260 for controlling the position and attitude of the tool carrier 250. The tool carrier 250 is mounted on the spindle 211 to allow a tool used for the operation to be unclamped (i.e., empty without a tool) and a tool port to be clamped by the spindle 211 May comprise a tool port set including a second tool port to be selected and mounted from the tool magazine (230).

Meanwhile, the tool carrier 250 may include a plurality of tool pot sets including a plurality of first tool pots and a plurality of second tool pots mating with the plurality of first tool pots. In this case, a plurality of tool pot sets may be used for tool unclamping and clamping to perform a tool change operation on a plurality of spindles.

As described above, the control block 270 controls the operation of the machine tool 200 as a whole. In particular, the control block 270 controls the first position adjustment unit 220, the second position adjustment unit 240, and the third position adjustment unit 260 to adjust the position of the spindle 210, The position of the port in the tool magazine 230 and the position and posture of the tool carrier 250 can be changed to perform the tool exchange preparation step and the tool exchange step. Where the position change may include horizontal and / or vertical movement, and the posture change may include rotation, tilt, and the like. However, the scope of the present invention is not limited thereto.

Hereinafter, the tool exchange preparation step and the tool exchange step performed under the control of the control block 270 will be described in more detail.

The tool exchange preparation step may include a second tool clamping step and a tool carrier transfer step. The second tool clamping step includes clamping a second tool to be used in a second operation to be performed subsequent to the first operation to the second tool port of the tool carrier 250 at the tool magazine 230 . And, moving the tool carrier 250 may include moving the tool carrier 250 to a tool change standby position.

Meanwhile, since the tool replacement preparation step is performed in advance during the first operation using the first tool mounted on the spindle 211, the tool change time can be reduced.

When the first operation is completed, the tool exchange step is performed. Wherein the tool changing step includes unclamping the first tool from the spindle 211 to a first tool port of the tool carrier 250 and moving the second tool from the second tool port to the spindle 211, And unclamping the first tool unclamped to the first tool port to an empty tool port of the plurality of tool ports of the tool magazine.

As described above, in the machine tool 200 according to the present invention, since the tool unclamping and tool clamping necessary for the tool change are performed collectively by the tool port set included in the tool carrier 250, Can be dramatically reduced.

11 is a flowchart showing still another example of a method of driving the machine tool 200 according to the present invention. Hereinafter, the driving method will be described with reference to necessary drawings.

First, during the first operation using the first tool mounted on the spindle 211, a tool change command is received by the control block 270 (S300). The tool change command is an instruction to replace the first tool currently mounted on the spindle 211 with a second tool to be used for the next second job.

If a tool change command is received during the first operation, the control block 270 causes the second tool port of the tool carrier 250 to move the second tool to the tool magazine 230 , And then moves the tool carrier 250 to the tool change standby position (S310).

The step of clamping the second tool to the tool carrier 250 may include the steps of controlling the second position adjuster 240 to move the second tool to a position where the tool carrier 250 performs clamping, Clamping the second tool to the first tool port by controlling the position and orientation of the tool carrier (250) by controlling the third position adjuster (260), and controlling the third tool (260) 250) to the tool change standby position.

After the tool carrier 250 is moved to the tool change standby position, the first operation is completed. The control block 270 then unclamps the first tool mounted on the spindle 211 to the first tool port of the tool carrier 250 and the second tool port of the tool carrier 250 The mounted second tool is clamped to the spindle 211 (S320). At this time, the control block 270 may move the spindle 111 to a work position and perform a second operation using the second tool.

The control block 270 then moves the tool carrier 250 to the tool magazine 230 and then moves the first tool unclamped from the spindle 211 to the first tool port And unclamped to an empty tool port of the tool magazine 230 (S330).

Then, the control block 270 receives a tool change command to the third tool to be used in the third operation during the second operation (S300), and controls the spindle 211 in accordance with steps S310 to S330 The mounted tool can be exchanged from the second tool to the third tool.

12 is a flowchart showing another example of the method of driving the machine tool 200 according to the present invention. FIG. 13 is a diagram conceptually illustrating a process in which the method of driving the machine tool 200 shown in FIG. 12 is performed. Meanwhile, the method of driving the machine tool 200 of FIG. 12 may be an example of the method of driving the machine tool 200 of FIG. Hereinafter, the driving method will be described with reference to necessary drawings.

A tool exchange command is received during the first operation using the first tool (S400). The control block 270 then clamps the second tool to be used for the second operation to the second tool port of the tool carrier 250 in the tool magazine 230 and then moves the tool carrier 250 to the tool change standby position (S410). Such tool clamping and movement is done during the first operation.

Clamping of the second tool may be performed based on movement of the tool magazine 230 itself, movement of tool ports in the tool magazine 230, and movement or posture change of the tool carrier 250. That is, at least one of the position and posture of the tool carrier 250 can be adjusted during the unclamping of the first tool.

13 (a) shows a state in which a second tool (triangle) to be used for the second operation from the tool magazine 230 is clamped to the second tool port of the tool carrier 250. Fig. 13 (b) shows a state in which the tool carrier 250 is moved to the tool exchange standby position in the state of FIG. 13 (a).

At this time, the tool carrier 250 is rotated counterclockwise so that the first tool port to be unclamped by the first tool (red circle) mounted on the spindle 211 corresponds to the moving position of the spindle 211 have. In some cases, the rotation of the tool carrier 250 may not be performed and may be performed after being moved to the tool exchange standby position

The control block 270 horizontally moves the spindle 211 to a position corresponding to the first tool port and then vertically raises the first tool to the first tool port Unlocked (S420, see Fig. 13 (b)).

The control block 270 then clamps the second tool mounted on the second tool port of the tool carrier 250 to the spindle 211 through the horizontal and vertical descent of the spindle 211 S430). FIG. 13C shows the process of step S430.

13 (c), the control block 270 rotates the second tool mounted on the second tool port of the tool carrier 250 while the spindle 211 is horizontally moved and then descended, .

According to another embodiment of the present invention, the horizontal position of the spindle 211 is transmitted to the tool carrier 250 (e.g., the tool carrier 250) via at least one of horizontal movement of the tool carrier 250 and posture adjustment of the tool carrier 250 , And then clamp the second tool to the spindle 211. In this case,

As described above, unclamping of the first tool causes a vertical rise (first direction) of the spindle 211, a clamping of the second tool causes vertical descent of the spindle 211 2 directions), but it could be the reverse. In some cases, the clamping or unclamping of the tool may be performed by raising or lowering the tool carrier 250.

After the second tool is clamped to the spindle 211, the control block 270 moves the spindle 211 to a work position to perform a second operation using the second tool, The first tool unclamped to the first tool port of the tool magazine 250 is unclamped to the tool magazine 230 at step S440.

13 (c) to 13 (e), when the second tool is clamped to the spindle 211, the spindle 211 moves to a position for performing the second operation, (250) moves near the tool magazine (230) for unclamping the first tool.

At this time, the tool carrier 250 rotates counterclockwise for position matching with the tool port to be unclamped by the first tool. However, in other embodiments of the present invention, rotation of the tool carrier 250 may not be performed. Meanwhile, the tool magazine 230 may be rotated to match a tool port to which the first tool is to be unclamped to a position at which the tool carrier 250 is moved. Meanwhile, the position adjustment of the tool magazine 230 may be further performed for such position matching.

13 (e), the control block 270 unclamps the first tool through the counter-clockwise rotation of the tool carrier 250 to an empty tool port of the tool magazine 230, .

Then, the control block 270 rotates the tool magazine 230 counterclockwise to clamp the port on which the third tool (black pentagon) to be used in the third operation to be performed next to the second job is mounted Position and rotates the tool carrier 250 counterclockwise to clamp the third tool to the second tool port of the tool carrier 250. The control block 270 then moves the tool carrier 250 to a tool change standby position. Then, the steps (a) to (g) of Fig. 13 are repeatedly performed with the tool alone changed.

FIG. 14 is a conceptual view illustrating a process of performing another example of the method of driving the machine tool 200 according to the present invention.

The tool mounted on the spindle 211 is exchanged from the first tool (red circle) to the second tool (black triangle) in accordance with a process substantially similar to the example shown in Fig. 13 shown in Fig. In the example of FIG. 14, the horizontal movement of the tool port in accordance with the rotation of the tool magazine 230, the horizontal movement of the spindle 211, and the unclamping and clamping of the tool through the vertical lift-down are performed. Hereinafter, the characteristics of the example of FIG. 14 will be described, focusing on the differences from the example shown in FIG.

In the first tool unclamping step of the example of FIG. 14, the horizontal position of the spindle 211 and the horizontal positional matching of the first tool port of the tool carrier 250 are performed in advance. In the second tool clamping step of the example of FIG. 14, the horizontal position of the spindle 211 and the horizontal positional matching of the second tool of the tool carrier 250 are made by the clockwise rotation of the tool carrier 250.

FIGS. 15 and 16 are conceptual diagrams showing a process of performing another example of the method of driving the machine tool 200 according to the present invention.

In the example shown in Fig. 15, the tools mounted on the spindles 211 and 212 are exchanged from the first tool to the second tool, respectively, according to a mechanism similar to the example shown in Fig. Therefore, the characteristic of the example of FIG. 15 will be described focusing on the difference from the example shown in FIG.

In the example of Fig. 15, there is a difference from the example of Fig. 13 in that tool exchange for a plurality of spindles 211 and 212 is performed simultaneously. At this time, the movement of the additional spindle 212 can be performed by the additional first position adjustment unit 222. The set of tool ports provided in the tool carrier 250 further includes two additional first and second tool ports located next to the first and second tool ports.

In the example of Fig. 15, unclamping of the unclamped tools from the plurality of spindles 211 and 212 to the tool magazine 230 is performed at the same time, unlike the example of Fig. 13, Clamping of the tool's tool carrier 250 to the first tool port is also performed simultaneously.

On the other hand, the tool change may be performed for three or more tools. That is, the machine tool 200 may further include at least one additional spindle and at least one additional first position adjuster corresponding to the at least one additional spindle. The tool carrier 250 may further include at least one additional first and second tool ports corresponding to the at least one spindle, each of the first and second tool ports being in a set with the first and second tool ports.

In this case, the control block 270 may further control the at least one additional first position adjuster in the tool change step to adjust the position of the additional spindle together with the spindle, so that, with the unclamping of the first tool, A tool mounted on at least one additional spindle may be unclamped to the at least one additional first tool port. The control block 270 may then clamp a tool mounted on the at least one additional second tool port with the clamping of the second tool to the at least one additional spindle. In addition, the control block 270, together with the unclamping of the first tool, provides a tool in the tool magazine 230 that is unclamped to the at least one additional first tool port, It can be unclamped to the tool port.

The example of Figure 16 differs from the example of Figure 15 in that the tool carrier 250 rotates to match the position of the spindles 211 and 212 to the position of the second tool port and the additional tool port for tool clamping There is only. Therefore, the example of FIG. 16 can be easily derived from the example of FIG. 15, and a detailed description thereof will be omitted.

At least some of the machine tool drive methods described herein may be implemented by separate software modules that perform one function or operation. Such software code may be implemented by a software application written in a suitable programming language. In addition, the software code can be embedded in the control block of the machine tool or stored in a separate memory, and can be executed by the control block.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

100: machine tool 110: spindle
120: first position adjustment section 130: tool magazine
140: second position adjustment unit 150: third position adjustment unit
160: Control block
200: machine tool 210: spindle
220: first position adjustment section 230: tool magazine
240: second position adjuster 250: tool carrier
260: third position adjusting section 270: control block

Claims (10)

A spindle;
A first position adjuster for controlling a position of the spindle;
Each of which is mounted on the spindle so that a first tool used for a first operation is positioned to be unlamped and a tool pot positioned next to the first tool pot, And a second tool port to which a second tool to be clamped by a spindle to be used in a second operation to be performed subsequent to the first operation is mounted, Tool magazine;
A second position adjustment section for controlling a position of the plurality of tool pot sets in the tool magazine; And
By controlling the first position adjustment section and the second position adjustment section to change the position of the spindle and the position in the tool magazine of the plurality of tool sets,
Wherein the first tool is moved from the spindle to the first tool when the first operation is completed, and wherein the first tool is moved from the spindle to the first tool, And a control block for performing a tool changing step of unclamping the second tool to the port and clamping the second tool to the spindle from the second tool port. The machine tool according to claim 1,
And a third position adjustment unit for controlling the position of the entire tool magazine,
The control block includes:
And the third position adjustment unit is controlled to further change the position of the entire tool magazine, thereby performing the tool change preparation step and the tool change step. The method according to claim 1,
Horizontally moving the spindle to the first tool port and then vertically moving in a first direction to unclamp the first tool mounted on the spindle to the first tool port;
Horizontally moving at least one of the spindle and the second tool pot to match the horizontal position of the spindle and the second tool port; And
And vertically moving the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the second tool port to the spindle. The machine tool according to claim 3,
Further comprising at least one additional spindle and at least one additional first position adjuster corresponding to the at least one further spindle,
Wherein each of said plurality of tool pot sets comprises:
Further comprising first and second tool ports located next to first and second tool ports corresponding to the spindle and corresponding to the additional spindle,
The control block includes:
Further performing the step of moving the additional first and second tool ports to a tool change standby position corresponding to the additional spindle when performing the tool exchange preparation step,
Performing further tool clamping and unclamping operations using the additional first and second tool ports by further controlling the additional first position adjuster to further change the position of the at least one additional spindle Further comprising the step of replacing the tool of the at least one further spindle with a tool to be used for the next work. The method according to claim 4,
Moving the set of tool pots comprised of the first and second tool ports and the additional first and second tool ports to the tool change standby position,
Wherein the tool changing step comprises:
Moving the at least one additional spindle with the spindle horizontally to the additional first tool port and then vertically moving in a first direction to unclamp the first tool mounted on the additional spindle to the additional first tool port, ;
Horizontally moving the additional spindle with the spindle or horizontally moving the additional second tool port with the second tool port to move the additional spindle and the additional spindle to the second tool port and the additional second tool port, To match the horizontal position of the object; And
And vertically moving the additional spindle with the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the additional second tool port to the spindle. Machine tool. Spindle;
A first position adjuster for controlling a position of the spindle;
A tool magazine including a plurality of tool ports;
A second position adjuster for controlling the positions of the plurality of tool pots in the tool magazine;
A tool carrier including a tool port set including a first tool port on which a tool mounted on the spindle is to be unclamped and a second tool port on which a tool to be clamped by the spindle is to be mounted;
A third position adjuster for controlling a position and an attitude of the tool carrier; And
The first position adjustment unit, the second position adjustment unit, and the third position adjustment unit to change the position of the spindle, the position of the plurality of tool ports in the tool magazine, and the position and posture of the tool carrier by doing,
A tool exchange preparation step of clamping a second tool to be used in a second operation to be performed subsequently to the first operation during the first operation to the second tool port in the tool magazine to move the tool carrier to a tool change standby position Lt; / RTI >
Clamping the first tool from the spindle to the first tool port, clamping the second tool from the second tool port to the spindle when the first task is completed, And unlocking the first tool unclamped to the port to an empty tool port of the plurality of tool ports. 7. The method according to claim 6,
Controlling the second position adjuster to move the second tool to a position where the tool carrier performs clamping;
Clamping the second tool to the first tool pot by controlling the third position adjuster to adjust the position and posture of the tool carrier; And
And moving the tool carrier to the tool change standby position by controlling the third position adjustment section. 7. The method of claim 6, wherein unclamping the first tool to the first tool port comprises:
Adjusting at least one of a position and an attitude of the tool carrier, horizontally moving the spindle to the first tool port, and then vertically moving the spindle in a first direction to move the first tool mounted on the spindle to the first tool port Gt; unclamping < / RTI >
Clamping the second tool to the spindle comprises:
Adjusting at least one of a horizontal position of the spindle, a horizontal position of the second tool port, and a position of the tool carrier to match the horizontal position of the spindle and the second tool port; And
And vertically moving the spindle in a second direction opposite to the first direction to clamp the second tool mounted on the second tool port to the spindle. The machine tool according to claim 8,
Further comprising at least one additional spindle and at least one additional first position adjuster corresponding to the at least one further spindle,
The tool carrier comprises:
Further comprising at least one additional first and second tool port corresponding to the at least one spindle, each of the first and second tool ports being in a set with the first and second tool ports,
The control block includes:
Further controlling the at least one additional first position adjustment unit in the tool change step to adjust the position of the additional spindle with the spindle,
Unclamping a tool mounted on the at least one additional spindle with the unclamping of the first tool to the at least one additional first tool port,
And clamps the tool mounted on the at least one additional second tool port to the at least one additional spindle with clamping of the second tool. 9. The apparatus of claim 8,
Clamping a tool unclamped to the at least one additional first tool port to a tool port forming a set with the empty tool port in the tool magazine with unclamping of the first tool. machine tool.

KR1020150055198A 2015-04-20 2015-04-20 machine tool including automatic tool changer capable of innovatively reducing tool change time KR101787602B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108723853A (en) * 2018-06-29 2018-11-02 科德数控股份有限公司 A kind of horizontal tool magazine adjustment positioning system of horizontal machining center machine side
WO2020166934A1 (en) * 2019-02-11 2020-08-20 두산공작기계 주식회사 Machine tool and operation method therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2675593B2 (en) * 1988-09-22 1997-11-12 株式会社東芝 Tool changer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108723853A (en) * 2018-06-29 2018-11-02 科德数控股份有限公司 A kind of horizontal tool magazine adjustment positioning system of horizontal machining center machine side
CN108723853B (en) * 2018-06-29 2023-12-12 科德数控股份有限公司 Horizontal tool magazine adjustment positioning system for side machine tool of horizontal machining center
WO2020166934A1 (en) * 2019-02-11 2020-08-20 두산공작기계 주식회사 Machine tool and operation method therefor

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