KR20130030928A - Device for transporting a tool in the tool magazine of a machine tool - Google Patents

Device for transporting a tool in the tool magazine of a machine tool Download PDF

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Publication number
KR20130030928A
KR20130030928A KR1020110094529A KR20110094529A KR20130030928A KR 20130030928 A KR20130030928 A KR 20130030928A KR 1020110094529 A KR1020110094529 A KR 1020110094529A KR 20110094529 A KR20110094529 A KR 20110094529A KR 20130030928 A KR20130030928 A KR 20130030928A
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KR
South Korea
Prior art keywords
tool
rack
pinion gear
pinion
transfer
Prior art date
Application number
KR1020110094529A
Other languages
Korean (ko)
Inventor
박용배
Original Assignee
두산인프라코어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 두산인프라코어 주식회사 filed Critical 두산인프라코어 주식회사
Priority to KR1020110094529A priority Critical patent/KR20130030928A/en
Publication of KR20130030928A publication Critical patent/KR20130030928A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools

Abstract

PURPOSE: A device for transferring a tool in tool magazine of a machine tool is provided to improve degree of precision of tool transfer position and to easily extend storage space of the tool. CONSTITUTION: A device for transferring a tool in tool magazine of a machine tool comprises a tool holder, a gripper, and a perpendicular and a horizontal transfer unit. The perpendicular transfer unit comprises an upper rack(11), a lower rack, an upper pinion gear, a lower pinion gear, and a driving member. The perpendicular transfer unit includes a perpendicular transfer member and a perpendicular transfer guide(24). The perpendicular transfer member comprises a perpendicular transfer frame, a ball screw, a transfer nut member, and a driving motor(25) for the ball screw.

Description

Device for transporting a tool in the tool magazine of a machine tool}

The present invention relates to a tool magazine of a machine tool, and more particularly, to a tool transport apparatus of a machine tool tool magazine for transferring a tool to a tool changer in a matrix type tool magazine for storing a plurality of tools in a matrix form.

In general, a machine tool such as a machining center performs a variety of machining in one process by using a plurality of tools alternately, and has a tool magazine for storing a plurality of tools to shorten a tool change time. Such a tool magazine includes a matrix-type tool magazine which houses a plurality of tools in a matrix form.

The tool housed in the tool magazine is transferred to the tool changer by the tool transfer device, and the tool changer exchanges the tool supplied from the tool magazine with the tool mounted on the main shaft.

Patent Application Publication No. 10-2010-0061887 filed by the applicant of the present invention (name: matrix tool magazine of the machine tool) is provided with a matrix type tool of the drive motor having a pulley on the drive shaft of the drive motor and connected by driving a timing belt A tool feed device for a magazine is disclosed.

Referring to FIG. 7 of the prior art reference, the conventional tool transfer device includes a horizontal transfer means 10 for horizontally transferring a gripper 30 holding a tool 5 and a vertical transfer means 20 for vertical transfer. It consists of a belt and a pulley.

In the case of the belt type, the positional accuracy is reduced due to the lagging and wear of the belt and backlash caused by the belt itself, which causes a problem that the gripper 30 does not properly dig the tool when storing and moving the tool.

In addition, when the number of tools to be stored in the tool magazine is to be expanded, new belts and guide parts should be provided as parts corresponding to the number of tools, and thus there is a problem in that existing equipment cannot be utilized and costs are high. In addition, the belt is lengthened and the number of parts is increased to expand the number of tools, and there are many problems in parts workability and parts supply and demand.

The present invention has been created to improve the problems of the tool transfer device of the conventional machine tool tool magazine as described above, it is possible to improve the precision of the position for holding and transporting the tool in the tool magazine and facilitate the storage space of the tool It is an object of the present invention to provide a tool conveying device of a machine tool tool magazine that can be expanded in a simple manner.

In order to achieve the object as described above, the tool transport apparatus of the machine tool tool magazine according to the present invention includes a tool holder for receiving the tools in the tool magazine of the machine tool for accommodating a plurality of tools, to the tool holder. A gripper for holding a stored tool, a vertical transfer unit for transferring the gripper in the longitudinal direction, and a horizontal transfer unit for transferring the vertical transfer unit in the lateral direction,

The horizontal transfer unit may include an upper rack provided in the transverse direction of the tool magazine, a lower rack provided in parallel with the upper rack at a predetermined interval, an upper pinion gear engaged with the upper rack, and a lower pinion engaged with the lower rack. And a driving means for rotationally driving the gear, the upper pinion gear and the lower pinion gear, wherein the vertical transfer unit includes a vertical transfer means for moving the gripper in the longitudinal direction, and a vertical transfer guide for guiding the gripper in the longitudinal direction. Characterized in that it comprises a.

The driving means may include an upper pinion drive motor meshed with the upper pinion gear to drive the upper pinion gear to rotate, and a lower pinion drive motor meshed with the lower pinion gear to rotationally drive the lower pinion gear.

In addition, the driving means is coupled to the upper pinion gear and the lower pinion gear at both ends, the pinion drive shaft is provided in a direction crossing the upper rack and the lower rack, and the vertical transfer means and integrally move the pinion drive shaft It is also possible to comprise a pinion drive motor for driving.

The vertical conveying means includes a vertical conveying frame which is integrally moved with the pinion driving motor of the horizontal conveying unit along the transverse direction of the tool magazine, and a ball screw which is axially rotatably supported in the longitudinal direction of the tool magazine to the vertical conveying frame. It may be configured to include a transfer nut member for moving by the axial rotation of the ball screw and to transfer the gripper along the axial direction of the ball screw, and a ball screw drive motor for axially rotating the ball screw.

In addition, the vertical transfer means may be configured to include a rack positioned in the transverse direction between the upper rack and the lower rack, the pinion gear driving the rack and meshing, and the pinion gear drive motor for rotating the pinion gear.

As described above, according to the tool transport apparatus of the tool tool magazine according to the present invention, it is possible to improve the precision of the position where the tool magazine is held and transported, and the tool is stored in the state in which the existing tool magazine is left as it is. The effect is to expand the space easily.

1 and 2 are a perspective view showing a tool transfer device of the machine tool tool magazine according to an embodiment of the present invention,
Figure 3 is a rear perspective view showing a tool transfer device of the tool tool magazine magazine shown in FIG.
Fig. 4 is a plan view of Fig. 3,
5 is a schematic side cross-sectional view taken along line AA of FIG. 4;
6 is a schematic side cross-sectional view cut along the line BB of FIG. 5, FIG.
FIG. 7 is a perspective view illustrating an operating state of the tool transport apparatus of the tool tool magazine illustrated in FIG. 3.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, the tool transport apparatus of a tool tool magazine according to an embodiment of the present invention, the gripper (G) for holding the tool in the tool magazine of the machine tool for receiving a plurality of tools in the longitudinal direction It includes a vertical transfer unit for transferring in the horizontal direction, and a horizontal transfer unit for transferring the vertical transfer unit in the lateral direction.

Tool magazine is a magazine in the form of a matrix, the tool holder (1) for accommodating a plurality of tools in the longitudinal direction provided with a plurality at predetermined intervals along the transverse direction, and holding the tools stored in the tool holder (1) Gripper G is provided.

The gripper G serves to transfer the tool of the tool magazine to a tool changer for exchanging a tool of a main shaft (not shown) or to take out a tool from the tool changer and transfer the tool to the tool magazine. Only one tool changer may be provided to transfer the tool passed from the gripper G to the change arm (not shown) to be replaced with the tool of the main shaft. A sub tool changer C2 is further provided to serve the sub tool from the gripper G. After the tool is supplied to the tool changer C2 and the sub tool changer C2 supplies the tool to the main tool changer C1, the main tool changer C1 may transfer the tool to the change arm.

The gripper G is provided on one side of the vertical transfer unit to be movable along the longitudinal direction of the tool magazine, and is movable in the lateral direction of the tool magazine by the horizontal transfer unit.

The horizontal transfer unit transfers the vertical transfer unit by driving the rack and the pinion gear with a drive motor.

The horizontal transfer unit of the present embodiment is the upper rack 11 provided in the transverse direction of the tool magazine, the lower rack 12 is provided in parallel with a predetermined interval under the upper rack 11, the upper rack 11 The upper pinion gear (13) meshed with), the lower pinion gear (14) meshed with the lower rack (12), and the driving means for rotationally driving the upper pinion gear (13) and the lower pinion gear (14). .

The drive means includes a pinion drive shaft 15 to which the upper pinion gear 13 and the lower pinion gear 14 are coupled, respectively, and a pinion drive motor 16 to drive the pinion drive shaft 15.

The upper rack 11 and the lower rack 12 are provided in parallel with a predetermined distance from each other to support the vertical transfer unit in each of the two parts. That is, the upper rack 11 and the lower rack 12 are provided to be spaced apart from each other by a distance that the gripper (G) moves in the longitudinal direction to support both ends of the vertical transfer unit, thereby stably maintaining the vertical transfer unit You will be able to move. The upper rack 11 and the lower rack 12 are provided in the horizontal frame (2), respectively.

The pinion drive shaft 15 is provided in a direction crossing the upper rack 11 and the lower rack 12 and the upper pinion gear 13 and the lower pinion gear 14 are coupled to both ends. The pinion drive shaft 15 is driven by the pinion drive motor 16 to rotate the upper pinion gear 13 and the lower pinion gear 14 at the same time.

On the other hand, the drive means is engaged with the upper pinion gear 13, the upper pinion drive motor (not shown) for driving the upper pinion gear 13 and the lower pinion gear 14 is engaged with the lower pinion gear It may be composed of a lower pinion drive motor (not shown) for driving the rotation (14). That is, the upper pinion gear 13 and the lower pinion gear 14 are provided with a drive motor for driving the upper pinion gear 13 and a lower pinion gear 14, respectively, and drive the two drive motors simultaneously. It is also possible to drive simultaneously.

In this way, the same power can be transmitted simultaneously to the upper rack 11 and the lower rack 12 by using one pinion drive motor 16 through the pinion drive shaft 15.

Here, since the racks can be engaged with the same pinion gear when the teeth are the same, it is possible to extend the track by successively coupling the rack having the same teeth to the upper rack 11 and the lower rack 12. That is, as shown in FIGS. 3 and 4, when the number of the tool holders 1 is to be increased in the transverse direction of the tool magazine, the same teeth of the upper rack 11 and the lower rack 12 are the same. It is possible to extend the length of the entire rack by successively coupling the rack (11 ') of each. In this way, as long as the length of the rack is extended, the distance that the gripper G moves in the lateral direction of the tool magazine can be extended while using the other horizontal transfer unit and the vertical transfer unit. Therefore, it is possible to easily expand the storage space of the tool only by extending the rack.

For tool extension addition of the matrix magazine, the TOOL HOLDER (21) rack pinion gear (32) and LM GUIDE (37) are attached to the original 196T magazine by 60T or 120T FRAME (11), and connected to the existing 196T matrix magazine. Configure a matrix magazine of 256T or 316T (or higher).

The pinion drive motor 16 drives the pinion drive shaft 15 through the reduction gear unit 16a, and the reduction gear unit 16a transmits the rotational force of the pinion drive motor 16 to the pinion drive shaft 15. do. Here, the pinion drive motor 16 is located at the center of the pinion drive shaft 15 to be able to uniformly transmit the driving force to both sides.

The pinion drive motor 16 is fixedly coupled to the vertical transfer unit and moves integrally with the vertical transfer unit.

The horizontal frame (2) is provided with a horizontal transfer guide (3) for guiding and supporting the vertical transfer unit to move along the transverse direction of the tool magazine. The horizontal conveyance guide 3 is an LM guide.

The vertical transfer unit includes a vertical transfer frame 21 which moves integrally with the pinion drive motor 16, and the vertical transfer unit includes vertical transfer means for moving the gripper G in the longitudinal direction.

The vertical conveying means is a ball screw 22 supported axially rotatable along the longitudinal direction of the tool magazine to the vertical conveying frame 21, the transfer nut member 23 moving along the axial direction of the ball screw 22 ), The transfer nut member 23 is a shaft for the vertical transfer guide 24, which is guided so as to be movable along the longitudinal direction of the tool magazine without axial rotation with the ball screw 22, and the ball screw 22 It includes a ball screw drive motor 25 to rotate.

In addition, the vertical conveying means is a rack (not shown) located in the transverse direction between the upper rack 11 and the lower rack 12, the pinion gear (not shown) to be engaged with the rack, and the It may be composed of a pinion gear drive motor (not shown) for rotating the pinion gear. That is, it is also possible to provide the rack and pinion gear and to move the gripper G integrally with the pinion gear drive motor so that the gripper G can move in the longitudinal direction of the tool magazine along the rack.

The vertical transfer frame 21 is coupled to the horizontal transfer guide 3 to move along the longitudinal direction of the horizontal frame 2.

The ball screw 22 is axially rotatable to the vertical transfer frame 21, and is driven by the ball screw drive motor 25. The ball screw drive motor 25 is fixedly coupled to the vertical transfer frame 21, and drives the ball screw 22 by the drive pulley 25a, the driven pulley 25b and the belt 25c.

The transfer nut member 23 is fitted to the outer circumferential surface of the ball screw 22 to move along the axial direction of the ball screw 22 by the rotation of the ball screw 22.

The conveying nut member 23 is supported by the vertical conveying guide 24 so as to be movable along the longitudinal direction of the tool magazine without being axially rotated together with the ball screw 22. The vertical conveying guide 24 is provided along the longitudinal direction of the vertical conveying frame 21 and prevents the conveying nut member 23 from rotating in the circumferential direction of the ball screw 22 while the axial direction of the ball screw 22. Supports to move along.

The transfer nut member 23 moves together with the gripper G to move the gripper G along the axial direction of the ball screw 22. The gripper G is fixedly coupled to the transfer nut member 23 through the slider 23a and moves integrally with the transfer nut member 23.

The slider 23a is fixedly coupled to one side of the transfer nut member 23 to move integrally with the transfer nut member 23, and the gripper G is fixedly coupled to one side of the slider 23a. One side of the vertical transfer guide 24 is formed with a guide groove 24a along its longitudinal direction so that the slider 23a slides along the longitudinal direction of the vertical transfer guide 24 together with the transfer nut member 23. It becomes movable.

Here, the gripper G may be indirectly interlocked with the transfer nut member 23 by using a medium. That is, the transfer nut member 23 and the gripper G may be interlocked by using a principle of a rodless cylinder. The rodless cylinder is a conveying device for allowing the cylinder tube and the piston to interlock with each other through magnetic force. The conveying nut member 23 corresponds to the piston and the ball screw 22 corresponds to the hydraulic pressure for driving the piston. 23a) corresponds to the cylinder tube. In this case, the guide groove 24a may not be formed in the vertical transfer guide 24.

Reference numeral 23b in the drawing is a stopper member for limiting the moving range of the slider 23a.

An operation of the gripper G to move according to the present invention will be described with reference to FIG. 7.

First, when the ball screw drive motor 25 is driven, the drive pulley 25a and the driven pulley 25b are interlocked by the belt 25c to axially rotate the ball screw 22, and the ball screw 22. The transfer nut member 23 moves together with the slider 23a by the rotation of the gripper G to move the longitudinal direction of the tool magazine.

The upper rack 11 and the lower rack 12 are fixed and the upper pinion gear 13 and the lower pinion gear 14 are moved. That is, when the pinion drive motor 16 is driven, the pinion drive shaft 15 is rotated to drive the upper pinion gear 13 and the lower pinion gear 14, at this time, the upper pinion gear 13 and the lower The pinion gear 14 rotates simultaneously and moves along the upper rack 11 and the lower rack 12. Accordingly, the upper pinion gear 13 and the lower pinion gear 14, the pinion drive shaft 15, the pinion drive motor 16, and the vertical transfer unit extend the longitudinal direction of the upper rack 11 and the lower rack 12. The gripper G moves in the transverse direction of the tool magazine.

Here, the ball screw drive motor 25 and the pinion drive motor 16 can be operated at the same time, in this case the vertical transfer unit and the horizontal transfer unit at the same time by the gripper (G) in the transverse direction and longitudinal direction of the tool magazine It is possible to move in the same direction simultaneously, so that the tool change position can be reached quickly.

1: Tool holder 2: Horizontal frame
3: horizontal feed guide
11: upper rack 12: lower rack
13: upper pinion gear 14: lower pinion gear
15: pinion drive shaft 16: pinion drive motor
16a: Reduction Gear Unit 21: Vertical Feeding Frame
22: ball screw 23: transfer nut member
23a: slider 24: vertical feed guide
24a: guide groove 25: ball screw drive motor

Claims (5)

In a tool magazine of a machine tool for storing a plurality of tools,
A plurality of tool holders (1) for receiving the tools;
A gripper (G) for holding a tool housed in the tool holder (1);
A vertical transfer unit for transferring the gripper (G) in the longitudinal direction; And
And a horizontal transfer unit configured to transfer the vertical transfer unit in a lateral direction.
The horizontal transfer unit,
An upper rack 11 provided in the transverse direction of the tool magazine;
A lower rack 12 provided in parallel with the upper rack 11 at a predetermined interval;
An upper pinion gear (13) meshed with the upper rack (11);
A lower pinion gear (14) meshed with the lower rack (12);
And driving means for rotationally driving the upper pinion gear 13 and the lower pinion gear 14.
The vertical transfer unit,
Vertical transfer means for moving the gripper (G) in the longitudinal direction;
And a vertical transfer guide (24) for guiding the gripper (G) to move in the longitudinal direction.
The method of claim 1, wherein the driving means,
An upper pinion drive motor meshed with the upper pinion gear 13 to drive the upper pinion gear 13 to rotate; And
And a lower pinion drive motor meshed with the lower pinion gear (14) to rotate the lower pinion gear (14).
The method of claim 1, wherein the driving means,
A pinion drive shaft 15 coupled to both ends of the upper pinion gear 13 and the lower pinion gear 14 and provided in a direction crossing the upper rack 11 and the lower rack 12; And
And a pinion drive motor (16) moving integrally with the vertical conveying means and driving the pinion drive shaft (15).
4. The method according to any one of claims 1 to 3,
The vertical conveying means,
A vertical transfer frame 21 integrally moving with the pinion drive motor 16 of the horizontal transfer unit along the transverse direction of the tool magazine;
A ball screw (22) supported axially rotatable in the longitudinal direction of the tool magazine by the vertical transfer frame (21);
A transfer nut member 23 which moves by axial rotation of the ball screw 22 and transfers the gripper G along the axial direction of the ball screw 22; And
Ball screw drive motor (25) for rotating the ball screw (22); Tool transfer apparatus of a machine tool tool magazine comprising a.
4. The method according to any one of claims 1 to 3,
The vertical transfer means,
A rack positioned transversely between the upper rack 11 and the lower rack 12;
A pinion gear that is engaged with the rack; And
And a pinion gear drive motor for rotating the pinion gear.
KR1020110094529A 2011-09-20 2011-09-20 Device for transporting a tool in the tool magazine of a machine tool KR20130030928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110094529A KR20130030928A (en) 2011-09-20 2011-09-20 Device for transporting a tool in the tool magazine of a machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110094529A KR20130030928A (en) 2011-09-20 2011-09-20 Device for transporting a tool in the tool magazine of a machine tool

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KR20130030928A true KR20130030928A (en) 2013-03-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150072867A (en) * 2013-12-20 2015-06-30 두산인프라코어 주식회사 Boring bar replacing apparatus for machine tool
KR20190113285A (en) 2018-03-28 2019-10-08 두산공작기계 주식회사 Tool magazine of machine tool
KR20210119652A (en) 2020-03-25 2021-10-06 두산공작기계 주식회사 Tool magazine apparatus of machine tools

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150072867A (en) * 2013-12-20 2015-06-30 두산인프라코어 주식회사 Boring bar replacing apparatus for machine tool
KR20190113285A (en) 2018-03-28 2019-10-08 두산공작기계 주식회사 Tool magazine of machine tool
KR20210119652A (en) 2020-03-25 2021-10-06 두산공작기계 주식회사 Tool magazine apparatus of machine tools

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