KR20150037436A - Milling head - Google Patents
Milling head Download PDFInfo
- Publication number
- KR20150037436A KR20150037436A KR20130117028A KR20130117028A KR20150037436A KR 20150037436 A KR20150037436 A KR 20150037436A KR 20130117028 A KR20130117028 A KR 20130117028A KR 20130117028 A KR20130117028 A KR 20130117028A KR 20150037436 A KR20150037436 A KR 20150037436A
- Authority
- KR
- South Korea
- Prior art keywords
- spindle
- coupling
- piston
- tool
- fixed
- Prior art date
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Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milling head, and more particularly, to a milling head having a structure capable of preventing breakage of a front wheel bearing that occurs during tool change.
The complex machining apparatus is, for example, a device capable of performing a function of a lathe and a function of a machining center, and it is possible to perform a lathe machining operation with a bite and a milling machining operation using a drill or an end mill, Can be performed.
Fig. 1 is a view showing the construction of a general milling head constituting a complex machining apparatus. The
A tool T is mounted on the tip of a
1, a
1, the upper part refers to a state in which the
FIG. 2 is a detail view of portion "A" of FIG. 1 showing the detailed configuration of a three-piece
The operation of the thus configured
In the process of milling, that is, machining a workpiece that does not rotate by rotating the
In order to perform the lathe machining or the milling machining, the tool T mounted on the
In order to replace the tool, a
During such a tool change process, an excessive force acts on the front wheel bearing 140, so that the life of the bearing may be shortened and breakage may occur.
Namely, the tool T is clamped by the
The pushing force of the
The present invention relates to a milling head having a structure capable of preventing breakage of a bearing by canceling a spring clamping force acting on the bearing when a tool is to be replaced, The purpose is to provide.
In order to accomplish the above object, according to the present invention, there is provided a milling head for a complex machining apparatus in which a tool is replaceable and a spindle is selectively rotated according to a machining process, the milling head including a spindle rotatably disposed in the housing, A spring clamp disposed in the spindle for bringing the tool into close contact with the tip of the spindle; A three-piece conic coupling assembly mounted on an outer circumferential surface of the spindle front end for selectively controlling the rotation of the spindle; And an unclamp piston mounted on the front of the 3-piece cubic coupling assembly; And a stationary piston mounted in front of the three-piece cubic coupling assembly and providing a reaction force to a moving spindle by a force applied through a spring clamp.
Wherein the three-piece cubic coupling assembly comprises: a piston coupling disposed on an outer periphery of the spindle; A rotary coupling disposed inside the front of the piston coupling and fixed to the spindle; And a fixed coupling disposed on the outside of the front of the piston coupling and fixed to the housing. Further, the unclamp piston extends between the rotary coupling and the fixed coupling and extends parallel to the spindle.
Particularly, a space portion is formed in the stationary piston, and a tip portion of the unclamping piston can be positioned in the space portion.
The milling head according to the present invention having the above structure can prevent damage to the front wheel bearing and prolong its service life by offsetting the axial force of the front wheel bearing over the allowable load by the reaction force of the fixed piston, have.
Further, by fixing the spindle completely using the fixed piston, it is possible to eliminate unnecessary rotation and vibration of the spindle when machining the workpiece using the turning tool, and as a result, the rigidity of the spindle can be increased.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a configuration of a general milling head of a complex machining apparatus. Fig.
2 is a detailed view of the portion "A" in Fig.
3 is a view showing a configuration of a milling head of a complex machining apparatus according to an embodiment of the present invention.
4 is a detailed view of a portion "B"
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a milling head according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Here, the overall structure of the milling head of the complex machining apparatus according to the embodiment of the present invention is the same as that of the milling head shown in Fig. Therefore, redundant description of the same components as those of the milling head shown in FIG. 1 is omitted, and only the features of the present invention are described.
FIG. 3 is a partial view showing the construction of a milling head of a complex machining apparatus according to an embodiment of the present invention, in which only a portion on which a tool is mounted is enlarged for the sake of clarity of the structure.
Meanwhile, the
The
Figure 4 is a detail view of the "B" portion of Figure 3 illustrating the relationship between the
A tool T is mounted on the tip of a
The three-
An
A
The
The operation of the
When the tool is unclamped, the tool unclamp piston 160 (Fig. 1) is actuated to push the
After the tool is replaced, during the turning process, the
In the above milling head, the axial force greater than the allowable load applied to the front wheel bearing at the time of tool change of the tool is canceled by the reaction force of the fixed piston, thereby preventing breakage of the front wheel bearing and extending its service life.
Further, by fixing the spindle completely using the fixed piston, it is possible to eliminate unnecessary rotation and vibration of the spindle when machining the workpiece using the turning tool, and as a result, the rigidity of the spindle can be increased.
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. It is to be understood that various changes and modifications may be made without departing from the scope of the present invention.
Claims (3)
A spindle to which a tool is mounted at the tip, the spindle being rotatably disposed within the housing;
A spring clamp disposed in the spindle for bringing the tool into close contact with the tip of the spindle;
A three-piece conic coupling assembly mounted on an outer circumferential surface of the spindle front end for selectively controlling the rotation of the spindle; And
An unclamp piston mounted in front of the three-piece cubic coupling assembly; And
And a stationary piston mounted in front of the three-piece cubic coupling assembly for providing a reaction force to a moving spindle by a force applied through a spring clamp.
A piston coupling disposed on an outer periphery of the spindle;
A rotary coupling disposed inside the front of the piston coupling and fixed to the spindle; And
A fixed coupling disposed outside the front of the piston coupling and fixed to the housing,
And an unclamp piston extending between the rotating coupling and the fixed coupling and extending parallel to the spindle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130117028A KR101538550B1 (en) | 2013-09-30 | 2013-09-30 | Milling head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130117028A KR101538550B1 (en) | 2013-09-30 | 2013-09-30 | Milling head |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20150037436A true KR20150037436A (en) | 2015-04-08 |
KR101538550B1 KR101538550B1 (en) | 2015-07-21 |
Family
ID=53033407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130117028A KR101538550B1 (en) | 2013-09-30 | 2013-09-30 | Milling head |
Country Status (1)
Country | Link |
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KR (1) | KR101538550B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112276426A (en) * | 2020-10-27 | 2021-01-29 | 侯荣玉 | Strainer head manufacturing device |
KR102374050B1 (en) * | 2020-10-14 | 2022-03-11 | 현대위아 주식회사 | Millhead for Composite Machine Tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102449379B1 (en) * | 2018-03-29 | 2022-09-30 | 주식회사 디엔솔루션즈 | Clamping device of spindle for machine tool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3964642B2 (en) * | 2001-09-06 | 2007-08-22 | ヤマザキマザック株式会社 | Machine Tools |
JP3747443B2 (en) * | 2003-06-05 | 2006-02-22 | 株式会社セイキテクノデザイン | Spindle clamp mechanism for milling head |
KR100654130B1 (en) * | 2005-11-23 | 2006-12-06 | 이더블유에스 코리아 주식회사 | Coherence amplification construction of the turret |
KR20100064427A (en) * | 2008-12-05 | 2010-06-15 | 두산인프라코어 주식회사 | Tool unclamping shock absorbing device for main spindle of machine tool |
-
2013
- 2013-09-30 KR KR1020130117028A patent/KR101538550B1/en active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102374050B1 (en) * | 2020-10-14 | 2022-03-11 | 현대위아 주식회사 | Millhead for Composite Machine Tool |
CN112276426A (en) * | 2020-10-27 | 2021-01-29 | 侯荣玉 | Strainer head manufacturing device |
CN112276426B (en) * | 2020-10-27 | 2022-08-26 | 广东华铠实业有限公司 | Strainer head manufacturing device |
Also Published As
Publication number | Publication date |
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KR101538550B1 (en) | 2015-07-21 |
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