KR20170050646A - Tool holder for a tool of machining center to engage and disengage - Google Patents

Tool holder for a tool of machining center to engage and disengage Download PDF

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Publication number
KR20170050646A
KR20170050646A KR1020150152439A KR20150152439A KR20170050646A KR 20170050646 A KR20170050646 A KR 20170050646A KR 1020150152439 A KR1020150152439 A KR 1020150152439A KR 20150152439 A KR20150152439 A KR 20150152439A KR 20170050646 A KR20170050646 A KR 20170050646A
Authority
KR
South Korea
Prior art keywords
tool
plunger
connecting rod
air cylinder
tool holder
Prior art date
Application number
KR1020150152439A
Other languages
Korean (ko)
Inventor
최준영
김태우
진종호
Original Assignee
현대위아 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 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR1020150152439A priority Critical patent/KR20170050646A/en
Publication of KR20170050646A publication Critical patent/KR20170050646A/en

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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
    • 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
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary 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
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • B23Q3/15713—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle

Abstract

The present invention relates to a tool attaching / detaching apparatus for a tool holder of a machining center, which comprises a tool insertion portion to which a tool is coupled, a plurality of balls provided in the tool insertion portion to grip the tool, A tool attaching and detaching device for a tool holder of a machining center having a spring for pressing a pusher and a tool holder having a housing for receiving the tool insert, the ball, the pusher and the spring, the tool holder comprising: Wherein the tool attachment / detachment device includes a plunger connected to the connecting rod, and an air cylinder for pushing or pulling the plunger.
According to the present invention, when the tool is detachably attached to the tool holder of the machining center, it is not necessary to detach the tool by the strength of the worker, thereby reducing the work fatigue and preventing safety accidents.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool holder for a tool holder of a machining center,

The present invention relates to a tool attaching / detaching apparatus for a tool holder, and more particularly, to a tool attaching / detaching apparatus for a tool holder of a machining center capable of mounting a tool without muscle strength of a worker when the tool is detachably attached to a tool holder of a machining center .

Machine tools are machines that are used for machining metal or non-metal materials to various shapes and sizes by using various cutting or non-cutting machining methods, or for more precise machining of semi-materials. Among machine tools, machine tools that generate chips during machining are called cutting machine tools, and non-cutting machine tools that do not generate chips during machining are called metal machining machines. Cutting machine tools include lathe, milling machine, machining center, drilling machine, boring machine, grinding machine, gear processing machine and special processing machine. Metal forming machine includes mechanical press, hydraulic press, Early, and withdrawal.

The double machining center is a complex machine tool with a boring / milling / drilling machine as one unit, and can be manufactured by cutting the heavy weight workpiece in the direction to be processed by the tool. The machining center is capable of multi-axis machining and multi-step machining with one setting, and is therefore mainly used for machining a small number of various kinds of parts. An example of such a machining center is disclosed in Korean Patent Publication No. 2010-0004549.

The machining center exchanges dozens or hundreds of tools to perform the necessary machining. In the past, when the tool was detached and attached to the tool holder, the operator had to press or pull the tool with tens of kilograms of force, There is a problem that causes a safety accident due to high fatigue.

Korean Patent Publication No. 2010-0004549 (published on Jan. 13, 2010)

An object of the present invention is to provide a tool attaching / detaching apparatus for a tool holder of a machining center which is capable of mounting a tool without muscle strength of a worker when a tool is detachably attached to a tool holder of a machining center.

According to an aspect of the present invention, there is provided a method of manufacturing a tool including a tool insertion portion to which a tool is coupled, a plurality of balls provided in the tool insertion portion to grip the tool, a pusher for pressing the ball, A tool attaching and detaching apparatus for a tool holder of a machining center having a spring and a tool holder having a housing for receiving the tool, the ball, the pusher and the spring, the tool holder further comprising a connecting rod, The tool attachment / detachment device includes a tool detachment device for a tool holder of a machining center, including a plunger connected to the connecting rod and an air cylinder for pushing or pulling the plunger.

And the connecting rod protrudes outside the housing.

The connecting rod is characterized in that one end is coupled to the pusher and the other end is coupled to the plunger.

The connecting rod includes a locking protrusion protruded outward from an outer circumferential surface of an end portion coupled to the plunger.

The plunger is characterized in that one end is coupled to the air cylinder and is movably coupled in the longitudinal direction of the air cylinder.

And the plunger is provided at the other end with a grip portion into which the connecting rod is inserted.

And the grip portion is bent and protruded inward toward the outer circumferential surface of the connecting rod.

And the tool is inserted into the tool holder after the air cylinder pulls the plunger toward the air cylinder when the tool is mounted.

When the tool is detached, the air cylinder pulls the plunger toward the air cylinder, and then the tool is separated from the tool holder.

On the other hand, the present invention can provide a machining center having the tool detachment device of any one of claims 1 to 9.

According to the tool attaching / detaching apparatus for a tool holder of a machining center according to an embodiment of the present invention, when a tool is detachably attached to a tool holder of a machining center, it is not necessary to detach the tool by the strength of the worker, thereby reducing work fatigue and preventing safety accidents .

1 is a view showing a state before operation of a tool attaching / detaching apparatus for a tool holder of a machining center according to an embodiment of the present invention;
2 is a view showing an operating state of a tool attaching / detaching apparatus for a tool holder of a machining center according to an embodiment of the present invention.

Hereinafter, a tool attaching / detaching apparatus for a tool holder of a machining center according to an embodiment of the present invention will be described in detail with reference to the drawings.

1, a tool attaching / detaching apparatus for a tool holder of a machining center according to an embodiment of the present invention comprises an air cylinder 300 for pulling a tool holder 200 to which a tool 100 is coupled, The air cylinder 300 is provided with a plunger 310 and the tool holder 200 is provided with a connecting rod 270.

The inner circumferential surface of one end of the tool 100 is provided with a coupling portion 110 which is inserted into and coupled to the tool holder 200. The engaging portion 110 has a stepped shape and a ball 250 to be described later is closely attached to the stepped portion so that the tool 100 is inserted into the tool holder 200.

The tool holder 200 is provided with a housing 210 forming an outer appearance and a tool inserting portion 230 provided inside the housing 210 to be coupled to the tool 100. A plurality of balls 250 for holding the tool 100 in close contact with the inner circumferential surface of the tool 100 while being inserted in the tool 100 are provided on the outer circumferential surface of one side of the tool inserting portion 230. A spring 290 is inserted into the tool inserting portion 230 to support a pusher and the pusher is pressed by a spring 290 to contact the ball 250 to push the ball 250 . A connecting rod 270 is coupled to the pusher.

The connecting rod 270 has one end fixed to the pusher and the other end protruding outside the housing 210. The protruding end of the connecting rod 270 is provided with a latching protrusion 272 protruding outwardly from the outer circumferential surface. The latching protrusion 272 is inserted into the plunger 310 to be described later and maintains the connection state with the plunger 310. [

The air cylinder 300 drives the plunger 310 with the air pressure and moves the connecting rod 270 toward the air cylinder 300 by pulling the plunger 310 or pushes the plunger 310 to the connecting rod 270, To return to the direction of the ball 250 of the tool holder 200. In the present invention, the air cylinder 300 drives the plunger 310 by air pressure, but may be replaced by a hydraulic cylinder, a linear gear set, or the like.

The plunger 310 is provided at one end of the air cylinder 300 and is movably coupled in the longitudinal direction of the air cylinder 300. The plunger 310 may be provided with a grip portion 330 to which the connecting rod 270 is inserted.

The gripper 330 has a protruding shape bent inward toward the outer circumferential surface of the connecting rod 270. Therefore, when the latching protrusion 272 of the connecting rod 270 is inserted into the latching part 330, the latching protrusion 272 is caught by the latching part 330 so that the connecting state of the connecting rod 270 and the plunger 310 is maintained .

2, when the tool 100 is mounted on the tool holder 200, the air cylinder 300 is first driven to pull the plunger 310 in the direction of the arrow.

The plunger 310 moves in the direction of the arrow to pull the connecting rod 270 in the direction of the arrow and the spring 290 is compressed by the pusher so that the ball 250 retreats to the inside of the tool insertion portion 230 .

In this state, when the operator inserts the tool 100 into the tool holder 200, the tool 100 can be inserted into the tool holder 200 without applying pressure to the tool 100. [

In general, to insert or remove a tool of 5 to 10 kg into the tool holder, the tool must be pressed with a force of 20 to 30 kgf (this is due to the force of the pusher and spring pushing the ball and the force .

However, if the connecting rod 270 is provided with the air cylinder 300 as in the present invention, the tool 100 can be easily mounted on the tool holder 200 without an operator pressing the tool 100.

When the insertion of the tool 100 is completed, the pressure of the air cylinder 300 is released to remove the force for pulling the connecting rod 270. When the pusher is restored to its original position by the restoring force of the spring 290, (270) is also restored to its original position.

The spring 290 is restored and the pusher is pushed toward the end of the tool inserting portion 230 and the pusher pushes the ball 250 into close contact with the engaging portion 110 of the tool 100. [ The ball 250 is brought into close contact with the engaging portion 110 so that the engaging portion 110 is pressed and held so that the tool 100 is retained in the tool holder 200.

The plunger 310 pulls the connecting rod 270 to release the force of the pusher which presses the ball 250 so that the force of the pushing force of the tool 100 is released The gripping state is released and the tool 100 can be easily separated.

The above-described operation of the air cylinder may be performed automatically by a separate controller, or the user may operate the switch to operate the air cylinder.

One embodiment of the present invention described above and shown in the drawings should not be construed as limiting the technical spirit of the present invention. The scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can improve and modify the technical spirit of the present invention in various forms. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: tool 200: tool holder
210: tool insertion portion 270: connecting rod
300: air cylinder 310: plunger
330:

Claims (10)

A plurality of balls provided in the tool inserting portion to grasp the tool, a pusher for pressing the ball, a spring for pressing the pusher, and a tool insertion portion, a ball, 1. A tool attaching / detaching apparatus for a tool holder of a machining center having a tool holder provided with a housing for receiving a pusher and a spring,
Wherein the tool holder further comprises a connecting rod,
Wherein the tool attaching /
A plunger connected to the connecting rod,
And an air cylinder for pushing or pulling the plunger. The method according to claim 1,
Wherein the connecting rod protrudes outside the housing. ≪ RTI ID = 0.0 > 11. < / RTI > 3. The method of claim 2,
Wherein the connecting rod has one end coupled to the pusher and the other end coupled to the plunger.
The method of claim 3,
Wherein the connecting rod includes a locking projection formed outwardly from an outer circumferential surface of an end portion coupled to the plunger. 5. The method of claim 4,
Wherein the plunger is coupled at one end to the air cylinder and movably in the longitudinal direction of the air cylinder. 6. The method of claim 5,
Wherein the plunger is provided with a grip portion for inserting the connecting rod at the other end thereof. The method according to claim 6,
Wherein the gripping portion is bent and protruded inward toward the outer circumferential surface of the connecting rod. 8. The method of claim 7,
Wherein the tool is inserted into the tool holder after the air cylinder pulls the plunger toward the air cylinder when the tool is mounted. 9. The method of claim 8,
Wherein the tool is detached from the tool holder after the air cylinder pulls the plunger toward the air cylinder when the tool is detached. A machining center having the tool detachment device of any one of claims 1 to 9.
KR1020150152439A 2015-10-30 2015-10-30 Tool holder for a tool of machining center to engage and disengage KR20170050646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150152439A KR20170050646A (en) 2015-10-30 2015-10-30 Tool holder for a tool of machining center to engage and disengage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150152439A KR20170050646A (en) 2015-10-30 2015-10-30 Tool holder for a tool of machining center to engage and disengage

Publications (1)

Publication Number Publication Date
KR20170050646A true KR20170050646A (en) 2017-05-11

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KR1020150152439A KR20170050646A (en) 2015-10-30 2015-10-30 Tool holder for a tool of machining center to engage and disengage

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107520735A (en) * 2017-09-20 2017-12-29 德清县海昌汽车零配件有限公司 A kind of automobile connecting bar processing burnishing device
CN108581577A (en) * 2018-07-05 2018-09-28 十堰合骏实业有限公司 A kind of auxiliary tool changing device of auto parts and components processing reverse side counterbore
CN108723994A (en) * 2018-05-22 2018-11-02 国营第六六厂 A kind of setting element for precisely processing plunger helix
KR20190078862A (en) * 2017-12-27 2019-07-05 현대위아 주식회사 Tool hold assembly for machine tools
CN111112674A (en) * 2020-02-12 2020-05-08 宋兴财 Anti-deformation metal pipe drilling equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107520735A (en) * 2017-09-20 2017-12-29 德清县海昌汽车零配件有限公司 A kind of automobile connecting bar processing burnishing device
KR20190078862A (en) * 2017-12-27 2019-07-05 현대위아 주식회사 Tool hold assembly for machine tools
CN108723994A (en) * 2018-05-22 2018-11-02 国营第六六厂 A kind of setting element for precisely processing plunger helix
CN108581577A (en) * 2018-07-05 2018-09-28 十堰合骏实业有限公司 A kind of auxiliary tool changing device of auto parts and components processing reverse side counterbore
CN111112674A (en) * 2020-02-12 2020-05-08 宋兴财 Anti-deformation metal pipe drilling equipment
CN111112674B (en) * 2020-02-12 2020-11-17 温州澳鼎建材有限公司 Anti-deformation metal pipe drilling equipment

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