KR101724055B1 - Door opening and closing device for machine tool - Google Patents
Door opening and closing device for machine tool Download PDFInfo
- Publication number
- KR101724055B1 KR101724055B1 KR1020150107266A KR20150107266A KR101724055B1 KR 101724055 B1 KR101724055 B1 KR 101724055B1 KR 1020150107266 A KR1020150107266 A KR 1020150107266A KR 20150107266 A KR20150107266 A KR 20150107266A KR 101724055 B1 KR101724055 B1 KR 101724055B1
- Authority
- KR
- South Korea
- Prior art keywords
- door
- bracket
- opening
- closing
- guide
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 abstract description 4
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
-
- 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
- B23Q11/0891—Protective coverings for parts of machine tools; Splash guards arranged between the working area and the operator
-
- 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
-
- 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
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
- E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
- E05Y2201/212—Buffers
-
- E05Y2900/608—
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing apparatus for opening and closing a door of a machine tool, such as a machining center, comprising: a door guide for guiding a door to open or close in a sliding manner; An opening and closing drive mechanism for opening and closing the door by pushing and pulling the door; A connection bracket connected between the door and the opening and closing drive mechanism; And a shock absorber provided on the connection bracket and acting to buffer the driving force of the opening and closing drive mechanism to the door, thereby minimizing the shock when the door is fully closed and opened, It is possible to open and close the door, thereby preventing damage to the equipment and increasing the reliability of the equipment.
Description
The present invention relates to a door opening / closing apparatus for opening and closing a door of a machine tool such as a machining center.
In general, a machine tool is a machine tool that is used for machining a metal or non-metal material with a suitable tool, such as a cutting or non-cutting method, or for more precise machining on a blank. The machine tool includes a lathe, A numerical control (NC) machine tool, a CNC (machine numerical control) machine tool, and a machining center tool, as well as general purpose machine tools such as a drill machine, a tapping machine and a boring machine.
Among such machine tools, a machine tool such as an NC lathe and a machining center is provided with a door for blocking the inside and the outside of the workpiece processing chamber, and the door is automatically opened and closed by a separate opening and closing device.
The door opening / closing device generally has a simple structure in which a door is coupled to a cylinder rod by using a cylinder that is a power source, so that air is supplied to move the piston in the cylinder, Thereby opening and closing the door.
However, in the conventional door opening / closing apparatus for a machine tool, impact and noise are generated when a door is opened or closed by using a cylinder rod or the like, and the door body or the frame is damaged due to impact, There is a problem that a noise is generated due to an impact.
The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for preventing equipment damage by making it possible to smoothly and smoothly open and close a door by minimizing impacts when the door is completely closed and opened, Which can improve the reliability of the door of the machine tool.
According to an aspect of the present invention, there is provided a door opening and closing apparatus for a machine tool, the door opening and closing apparatus comprising: a door guide provided on a body to guide the door in a sliding manner; An opening and closing drive mechanism for opening and closing the opening by pushing and pulling the door; A connection bracket connected between the door and the opening and closing drive mechanism; And a buffer mechanism provided on the connection bracket and acting to buffer the driving force of the opening and closing driving mechanism to the door.
The opening and closing drive mechanism includes a pneumatic cylinder and an opening / closing rod connected to the pneumatic cylinder and connected to the connection bracket by linear movement.
The connection bracket may include a door bracket connected to the door and a drive bracket connected to the opening and closing drive mechanism, and the buffer mechanism may be installed between the door bracket and the drive bracket.
The door bracket may be installed to slide along the door guide.
The buffer mechanism includes a cushion bracket formed in a U-shaped structure and fixed to the door bracket, and a cushion spring for buffering when the driving bracket is supported in the cushion bracket in a door opening / closing direction .
According to another aspect of the present invention, there is provided a door opening / closing apparatus for a machine tool, comprising: a door guide for guiding a door to open and close in a sliding manner; A door bracket configured to slide along the door guide while being fixed to the door; A pneumatic cylinder for pushing and pulling the door to open and close an opening provided in the body, and an opening / closing rod linearly moved by the pneumatic cylinder; A driving bracket connected to the opening / closing rod; A cushion bracket fixed to the door bracket and formed in a U-shaped structure to insert a part of the driving bracket; And a cushioning spring that performs a cushioning function when the drive bracket is supported in the cushion bracket and acts in the door opening and closing direction.
The cushioning bracket preferably includes a fixing part fixed to the door bracket and both side supports bent at both ends of the fixing part to support the cushioning spring.
Preferably, the drive bracket has a plurality of buffer springs disposed on both sides of the drive bracket so as to provide a buffering force in both directions.
The buffer spring is preferably a coil spring.
And a guide rod for guiding the movement of the drive bracket is provided between the both fixing portions of the cushion bracket.
The above and other objects and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: In addition to the principal task solutions as described above, various task solutions according to the present invention will be further illustrated and described.
The door opening / closing apparatus for a machine tool according to the present invention alleviates an impact on a stopper when the door is completely closed and opened through a buffering mechanism and smoothly opens and closes in the door opening and closing process, And the reliability of the equipment can be increased.
FIG. 1 is a view showing a door opening / closing device for a machine tool according to an embodiment of the present invention, and is a view showing a door closed state.
FIG. 2 is a view showing a door opening / closing apparatus for a machine tool according to an embodiment of the present invention, and is a view showing a door open state.
3 is a detailed view of essential parts of a door opening / closing device for a machine tool according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will be described with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. The embodiments are provided so that those skilled in the art can easily carry out the technical idea of the present invention to those skilled in the art.
In the drawings, embodiments of the present invention are not limited to the specific forms shown and may be exaggerated for clarity. Also, the same reference numerals denote the same components throughout the specification.
The expression "and / or" is used herein to mean including at least one of the elements listed before and after. Also, singular forms include plural forms unless the context clearly dictates otherwise. Also, components, steps, operations and elements referred to in the specification as " comprises "or" comprising " refer to the presence or addition of one or more other components, steps, operations, elements, and / or devices.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2 are views showing a door closing apparatus for a machine tool according to an embodiment of the present invention. FIG. 1 is a diagram of a door closing state, FIG. 2 is a door opening state, FIG. 3 is a detailed view of a main portion of a door opening / closing apparatus for a machine tool according to an embodiment of the present invention.
1 and 2,
An
The
The
The
The force for opening and closing the
In the drawings of this embodiment, it is exemplified that the opening and
The
This
The opening /
Here, the
The connecting
3, the
The
It is preferable that the
The
3, a
Of course, it is preferable that a hole for inserting the
In addition, a bellows-shaped
1 and 2,
The
1, in order to open the
At this time, since the force generated by the movement of the
When the
2, even if the
As described above, the technical ideas described in the embodiments of the present invention can be implemented independently of each other, and can be implemented in combination with each other. 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. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.
10: body 15: opening
20: door 25: door guide
31: door bracket 35: roller
40: connection bracket 50: opening / closing drive mechanism
51: pneumatic cylinder 55: opening / closing rod
57: drive bracket 60: buffering mechanism
61: buffer bracket 62:
63: Support part 65: Buffer spring
66: guide rod 68: cover structure
Claims (10)
A door bracket configured to slide along the door guide while being fixed to the door;
A pneumatic cylinder for pushing and pulling the door to open and close the opening provided in the body, and an opening / closing rod that moves linearly by the pneumatic cylinder;
A driving bracket connected to the opening / closing rod; And
A cushioning bracket formed in a U-shaped structure and fixed to the door bracket and having a part of the driving bracket inserted therein; a cushioning spring having a buffering action when the driving bracket is supported in the cushioning bracket, And a buffering mechanism including:
Wherein the cushion bracket includes a fixing part fixed to the door bracket, a pair of supporting parts bent at both ends of the fixing part to support the cushioning spring, and a lower part of the driving bracket fitted between the both side supporting parts, Further comprising a guide rod for guiding the movement of the bracket,
Wherein the buffer springs are provided on the outer side of the guide rods and are respectively disposed on both sides of the drive bracket so as to provide a buffering force in both directions to the drive bracket.
And a roller that rolls along the door guide is installed on the door bracket.
Wherein a bellows-like cover structure is provided on the outside of the buffer spring.
Wherein the buffer spring is a coil spring.
Wherein a hole for inserting the guide rod is formed at a lower end of the drive bracket, and the hole is formed to be larger than an outer diameter of the guide rod.
Further comprising a stopper fixed to the front and rear structures of the body to restrict opening and closing of the door when the door is opened and closed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150107266A KR101724055B1 (en) | 2015-07-29 | 2015-07-29 | Door opening and closing device for machine tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150107266A KR101724055B1 (en) | 2015-07-29 | 2015-07-29 | Door opening and closing device for machine tool |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170014248A KR20170014248A (en) | 2017-02-08 |
KR101724055B1 true KR101724055B1 (en) | 2017-04-18 |
Family
ID=58154804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020150107266A KR101724055B1 (en) | 2015-07-29 | 2015-07-29 | Door opening and closing device for machine tool |
Country Status (1)
Country | Link |
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KR (1) | KR101724055B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101983607B1 (en) * | 2017-07-11 | 2019-05-29 | 최홍순 | Automatic control device for evacuation gates |
KR20190047838A (en) | 2017-10-30 | 2019-05-09 | 현대위아 주식회사 | Opening and closing apparatus of side by side type door for machine tool |
JP7003894B2 (en) * | 2018-10-31 | 2022-01-21 | ブラザー工業株式会社 | Door switchgear and machine tools |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4958583B2 (en) | 2007-02-26 | 2012-06-20 | オークマ株式会社 | Machine tool door device |
JP5209768B2 (en) | 2011-09-12 | 2013-06-12 | ファナック株式会社 | Shock absorber damper for sliding door |
CN103286627A (en) | 2012-02-28 | 2013-09-11 | 发那科株式会社 | Two-stage linked sliding door of machine tool |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200149850Y1 (en) | 1996-12-31 | 1999-06-15 | 추호석 | Pneumatic Control Circuit in a device for opening and closing door |
KR100600238B1 (en) | 2005-01-06 | 2006-07-13 | 두산메카텍 주식회사 | Link connection type slide door apparatus of machining center |
-
2015
- 2015-07-29 KR KR1020150107266A patent/KR101724055B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4958583B2 (en) | 2007-02-26 | 2012-06-20 | オークマ株式会社 | Machine tool door device |
JP5209768B2 (en) | 2011-09-12 | 2013-06-12 | ファナック株式会社 | Shock absorber damper for sliding door |
CN103286627A (en) | 2012-02-28 | 2013-09-11 | 发那科株式会社 | Two-stage linked sliding door of machine tool |
Also Published As
Publication number | Publication date |
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KR20170014248A (en) | 2017-02-08 |
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