KR20140139659A - Cover with door safty system for machine tool - Google Patents

Cover with door safty system for machine tool Download PDF

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Publication number
KR20140139659A
KR20140139659A KR20130059625A KR20130059625A KR20140139659A KR 20140139659 A KR20140139659 A KR 20140139659A KR 20130059625 A KR20130059625 A KR 20130059625A KR 20130059625 A KR20130059625 A KR 20130059625A KR 20140139659 A KR20140139659 A KR 20140139659A
Authority
KR
South Korea
Prior art keywords
sliding door
door
pusher
machine tool
cover
Prior art date
Application number
KR20130059625A
Other languages
Korean (ko)
Inventor
배재용
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 KR20130059625A priority Critical patent/KR20140139659A/en
Publication of KR20140139659A publication Critical patent/KR20140139659A/en

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Classifications

    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0825—Relatively slidable coverings, e.g. telescopic
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/49—Safety devices, e.g. detection of obstructions or end positions specially adapted for mechanisms operated by fluid pressure, e.g. detection by monitoring transmitted fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/56—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings

Abstract

An embodiment of the present invention is related to a cover with a door safety system for a machine tool. The cover for a machine tool comprises: a cover body surrounding a machine tool body and formed with an aperture part on one area; a sliding door installed in the aperture part of the cover body to enable to be slid; an elastic latching member installed on one side of the sliding door; a push loader separably installed in one direction with a pusher which is inserted into the elastic latching member on an end part if constant pressure is applied; and a cylinder to linearly reciprocate the push loader and open and close the sliding door.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cover for a machine tool having a door safety system,

An embodiment of the present invention relates to a cover for a machine tool, and more particularly to a cover for a machine tool having a door safety system.

In general, a machine tool refers to a machine that is used for machining a metal or non-metal workpiece with various tools to a desired shape and size by various cutting or non-cutting processing methods.

The machine tool includes a cover surrounding the machine body to protect the operator as the coolant and chips scatter during various operations. The cover includes an opening that allows the workpiece processed by the machine body to be taken out or an operator can access the machine body, and a door that opens and closes the opening. The door is then closed automatically through a pneumatic sealer.

However, in the process of automatically closing the door, an operator is bumped or stuck on the door, and a safety device for protecting the operator is required.

An embodiment of the present invention provides a cover for a machine tool having a door safety system for protecting an operator.

According to an embodiment of the present invention, a cover for a machine tool having a door safety system includes a cover body having an opening formed in an area surrounding the machine tool body, a sliding door slidably installed in the opening of the cover body, A push loader provided on an end portion of the pushing loader, the pushing loader having a pusher fitted to the resiliently engaging member to be detachable in one direction when a predetermined pressure or more is applied to the pushing loader; And includes a cylinder for opening and closing.

Wherein the resilient latching member includes a holder body having a holder hole through which the pusher of the push loader can be inserted, a retaining ball accommodated in the holder body such that a part of the retaining protrusion can protrude from a center of the holder hole at an edge of the holder hole, And a spring for elastically pressing the latching ball toward the center of the holder hole.

When the pusher is pushed by the cylinder, the pusher is hooked on the catching ball of the resilient latching member to press the sliding door in the closing direction. When the sliding door is caught by the obstacle while the sliding door is closed, the pusher pushes the catching ball And can be spaced apart from the elastic latching member.

The elastic locking member is coupled to a side surface of the holder body in a direction in which the sliding door is opened so as to prevent the pusher of the push loader from being separated from the holder hole of the holder body in a direction in which the sliding door is opened .

The cover for a machine tool having the door safety system may further include a first sensing sensor for detecting a closing state of the sliding door and a second sensing sensor for sensing an opening state of the sliding door. The cylinder may operate according to signals of the first sensing sensor and the second sensing sensor to open and close the sliding door.

According to the embodiment of the present invention, a cover for a machine tool having a door safety system can safely protect an operator.

1 is a perspective view of a cover for a machine tool having a door safety system according to an embodiment of the present invention.
2 is a plan view of a cover for a machine tool having the door safety system of FIG.
Fig. 3 is an enlarged cross-sectional view of the elastic engaging member of Fig. 1. Fig.
FIGS. 4 and 5 are perspective views illustrating operation of a cover for a machine tool having the door safety system of FIG. 1. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are shown exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element or component appearing in more than one drawing, the same reference numerals are used to denote similar features.

The embodiments of the present invention specifically illustrate ideal embodiments of the present invention. As a result, various variations of the illustration are expected. Thus, the embodiment is not limited to any particular form of the depicted area, but includes modifications of the form, for example, by manufacture.

Hereinafter, a cover 101 for a machine tool having a door safety system according to an embodiment of the present invention will be described with reference to FIGS.

1 and 2, a cover 101 for a machine tool having a door security system according to an embodiment of the present invention includes a cover body 100, a sliding door 200, an elastic engaging member 300 A push loader 400, and a cylinder 500.

A cover 101 for a machine tool having a door safety system according to an embodiment of the present invention includes a first detection sensor 710 (shown in FIG. 3) for detecting a closed state of the sliding door 200, And a second sensing sensor 720 (shown in FIG.

The cover body 100 surrounds the machine tool body to protect the worker from cutting oil and chips scattered in the process of performing various operations of the machine tool body.

In one embodiment of the present invention, the machine tool body enclosed by the cover body 100 may be one of a turning center and a machining center, although not shown. The machine tool body can be machined into a desired shape and dimensions using various tools.

Further, the cover body 100 has an opening 109 formed in one region. The workpiece machined by the machine tool body 100 can be taken out through the opening 109 of the cover body 100 or the operator can approach the machine tool body 100 to manipulate or maintain or replace the machine tool body 100 .

The sliding door 200 is installed in the opening 109 of the cover body 100 to open and close the opening 109. In one embodiment of the present invention, the sliding door 200 is slidably installed. That is, the sliding door 200 can be slid open or closed.

In addition, the sliding door 200 may have a protective window 208 formed so that an operator can look inside the cover body 100.

In addition, the cover 100 for a machine tool having the door safety system shown in FIG. 1 is a side door type, but the embodiment of the present invention is not limited thereto and can be applied to a short type.

The cylinder 500 provides power for automatically opening and closing the sliding door 200. In one embodiment of the present invention, the cylinder 500 may be a pneumatic or hydraulic cylinder.

The push loader 400 is coupled to the cylinder 500 and linearly reciprocates according to the operation of the cylinder 500. That is, in one embodiment of the present invention, the cylinder 500 can make a linear reciprocation of the push loader 400 to automatically open and close the sliding door 200.

Also, in one embodiment of the present invention, the push loader 400 includes a pusher 403 formed at an end thereof.

The elastic locking member 300 is installed and coupled to one side of the sliding door 200. The pusher 403 of the push loader 400 is detachably fitted to the elastic latching member 300 in one direction. Specifically, the pusher 403 fitted to the elastic latching member 300 is separated in one direction when a certain pressure or more is applied. Here, the separation in one direction means that the pusher 403 is moved and separated in the closing direction of the sliding door 200 based on the stopping state of the elastic latching member 300.

3, the elastic latching member 300 includes a holder body 310, an engagement ball 330, and a spring 350. [ Further, the elastic latching member 300 may further include a rear stopper 390.

The holder main body 310 has a holder hole 311 through which the pusher 403 of the push loader 400 can be inserted. The holder body 310 may further have an elastic accommodating portion 319 for accommodating the engaging ball 330 and the spring 350.

The engaging ball 330 is accommodated in the elastic accommodating portion 319 of the holder body 310 such that a part of the engaging ball 330 protrudes from the edge of the holder hole 311 toward the center of the holder hole 311. The spring 350 is accommodated in the elastic accommodating portion 319 of the holder body 310 together with the engaging ball 330 to urge the engaging ball 330 toward the center of the holder hole 311. That is, the catching ball 330 may be pressed by the spring 350, and a part of the catching ball 330 may protrude from the edge of the holder hole 311 in the center direction.

The pusher 403 of the push loader 400 can not pass through the holder hole 311 and is caught in the middle by the catching ball 330 elastically pressed and protruded by the spring 350. [ That is, when the cylinder 500 is extended and the push loader 400 is pushed, the pusher 403 caught by the catch ball 330 moves the sliding door 200 coupled with the elastic pressing member 300 in the closing direction.

When the relative pressure between the pusher 403 and the elastic engagement member 300 becomes equal to or greater than a predetermined pressure, that is, when the pusher 403 presses the engagement ball 330 at a predetermined pressure or more, The pusher 403 pushes the pusher 403 through the holder hole 311 of the holder main body 310 while pushing the pusher 403 into the elastic receiving portion 319 of the holder main body 310, It is separated. Here, the constant pressure refers to a pressure greater than the elastic force of the spring 350. That is, if necessary, a certain pressure can be adjusted through the elastic force of the spring 350.

In an embodiment of the present invention, the spring 350 may have a suitable elastic force so as not to injure an operator when the sliding door 200 hits an operator in the process of closing the sliding door 200.

The rear stopper 390 is engaged with a side surface of the holder body 310 in which the sliding door 200 is opened. The rear stopper 390 prevents the pusher 403 of the push loader 400 from being separated from the holder hole 311 of the holder body 310 in the direction in which the sliding door 200 is opened. That is, when the cylinder 500 is contracted and the push loader 400 is pulled, the pusher 403 caught by the rear stopper 390 moves the sliding door 200 coupled with the elastic pressing member 300 in the opening direction.

2, the first sensing sensor 710 senses the closed state of the sliding door 200, and the second sensing sensor 720 senses the opened state of the sliding door 200. As shown in FIG. That is, the cylinder 500 extends or contracts according to the signals of the first sensing sensor 710 and the second sensing sensor 720 to automatically open and close the sliding door 200, have.

With such a configuration, the cover 101 for a machine tool equipped with the door safety system according to the embodiment of the present invention can effectively and safely protect the operator.

4 and 5, the operation principle of the cover 101 for a machine tool having a door safety system according to an embodiment of the present invention will be described in detail.

4, when the cylinder 500 is extended and the push loader 400 is pushed in a state in which the sliding door 200 is opened, the pusher 403 (see Fig. 3 The sliding door 200 is moved in the closing direction.

5, when the pusher 403 of the push loader 400 is detached from the resiliently engaging member 300, the pushing loader 400 is pulled out of the sliding door 200, And the push loader 403 is moved in the closing direction.

Therefore, according to the embodiment of the present invention, it is possible to safely protect the operator in the process of closing the sliding door 200 by only a mechanical configuration without using a separate sensor.

When the pusher 403 is separated from the elastic latching member 300 and the cylinder 500 is contracted to pull the push loader 400, the elastic latching member 300 (not shown) connected to the sliding door 200, The pusher 403 is hooked on the sliding door 200 to move the sliding door 200 in a direction in which the sliding door 200 is opened. In a process in which the sliding door 200 is completely opened, the pusher 403 is fitted in the elastic locking member 300 in an initial state. 3) prevents the pusher 403 from being separated from the holder hole 311 of the holder main body 310 of the elastic locking member 300 in the direction in which the sliding door 200 is opened do.

As described above, according to the embodiment of the present invention, it is possible to effectively prevent a safety accident that injures the operator in the process of closing the sliding door 200. In the process of protecting the operator, the pusher 403 and the resiliently retaining member 300 separated from each other are retracted to the initial state automatically, that is, the pusher 403 is retracted into the resiliently engaging member 300 You can reinsert it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. will be.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: Cover body
101: Cover for machine tools with door safety system
109: opening 200: sliding door
208: Protection window 300: Elastic locking member
310: holder body 311: holder hole
319: elastic receiving portion 330:
350: spring 390: rear stopper
400: Push loader 403: Pusher
500: cylinder 710: first sensing sensor
720: second detection sensor

Claims (5)

A cover for a machine tool having a door safety system,
A cover body surrounding the machine tool body and having an opening in one area;
A sliding door slidably installed in the opening of the cover body;
An elastic engaging member provided on one side of the sliding door;
A push loader provided at an end portion of a pusher fitted to the elastic engagement member so as to be separable in one direction when a predetermined pressure or more is applied; And
A cylinder for linearly reciprocating the push loader to open and close the sliding door
And a door safety system including the door safety system. The method of claim 1,
The elastic engaging member
A holder main body having a holder hole through which the pusher of the push loader can pass;
An engaging ball accommodated in the holder body such that a part of the holder hole can protrude in a direction toward the center of the holder hole; And
A spring that is received in the holder body and elastically presses the engagement ball in the direction of the center of the holder hole;
And a door safety system including the door safety system. 3. The method of claim 2,
When the pusher is pushed by the cylinder, the pusher is caught by the latching ball of the elastic latching member to urge the sliding door in a closing direction,
And the pusher is spaced apart from the elastic latching member while pushing the latching ball when the sliding door is caught by an obstacle while the sliding door is closed. 3. The method of claim 2,
The elastic latching member is coupled to a side surface of the holder body in a direction in which the sliding door is opened so as to prevent the pusher of the push loader from being separated from the holder hole of the holder body in a direction in which the sliding door is opened A cover for a machine tool having an included door safety system. 5. The method according to any one of claims 1 to 4,
A first sensing sensor for sensing a closed state of the sliding door; and a second sensing sensor for sensing an open state of the sliding door,
And the cylinder is operated according to the signals of the first sensor and the second sensor to open and close the sliding door.
KR20130059625A 2013-05-27 2013-05-27 Cover with door safty system for machine tool KR20140139659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130059625A KR20140139659A (en) 2013-05-27 2013-05-27 Cover with door safty system for machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130059625A KR20140139659A (en) 2013-05-27 2013-05-27 Cover with door safty system for machine tool

Publications (1)

Publication Number Publication Date
KR20140139659A true KR20140139659A (en) 2014-12-08

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KR20130059625A KR20140139659A (en) 2013-05-27 2013-05-27 Cover with door safty system for machine tool

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109262358A (en) * 2018-09-28 2019-01-25 安徽省临泉县智创精机有限公司 A kind of High Speed NC Machine Tools safety device
CN110293747A (en) * 2018-03-22 2019-10-01 博斯特（上海）有限公司 Windowing facility and gold stamping device with windowing facility
CN112440148A (en) * 2020-11-26 2021-03-05 江苏科技大学 Protective device for automation equipment and automation equipment thereof
CN115284047A (en) * 2022-09-28 2022-11-04 山东豪迈数控机床有限公司 Digit control machine tool magazine guard shield and digit control machine tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110293747A (en) * 2018-03-22 2019-10-01 博斯特（上海）有限公司 Windowing facility and gold stamping device with windowing facility
CN109262358A (en) * 2018-09-28 2019-01-25 安徽省临泉县智创精机有限公司 A kind of High Speed NC Machine Tools safety device
CN112440148A (en) * 2020-11-26 2021-03-05 江苏科技大学 Protective device for automation equipment and automation equipment thereof
CN115284047A (en) * 2022-09-28 2022-11-04 山东豪迈数控机床有限公司 Digit control machine tool magazine guard shield and digit control machine tool

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