KR101629633B1 - The Tailstock of the NC Lathe - Google Patents
The Tailstock of the NC Lathe Download PDFInfo
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- KR101629633B1 KR101629633B1 KR1020100042810A KR20100042810A KR101629633B1 KR 101629633 B1 KR101629633 B1 KR 101629633B1 KR 1020100042810 A KR1020100042810 A KR 1020100042810A KR 20100042810 A KR20100042810 A KR 20100042810A KR 101629633 B1 KR101629633 B1 KR 101629633B1
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- sleeve
- piston
- hydraulic
- lathe
- tailstock
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Abstract
The present invention relates to a tailstock of an NC lathe.
The cardiovascular table of the NC lathe according to the present invention includes a body 210 installed to protrude toward the inner diameter side of the guide unit 140, a guide groove 222 installed at the inner diameter of the body 210, A center hole 224 and a taper hole 226 are formed in the inside of the sleeve 220 and the sleeve 220 to move the sleeve 210. The cylinder liner 232 is formed on one side of the sleeve 220 and the sleeve 220, The piston head 234a of the piston 234 is inserted into the body 210 and a part of the piston 234 is fixed to the body 210 and the sleeve cover 240 is installed at the end of the cylinder liner 232, The first and second chambers 232a and 232b are formed on both sides of the sleeve 220 and the first and second chambers 232a and 232b through the piston 234, (Not shown).
Description
The present invention relates to a tailstock of an NC lathe, and more particularly to a tailstock of an NC lathe used to support a workpiece mounted on a chuck in an NC lathe.
Normally, an NC lathe is known as an automated lathe capable of numerical control, and on one side of the bed guide surface, a pressure bar is disposed on the opposite side of the main shaft.
The above-mentioned pressure tap acts to support one end of the workpiece with the chuck of the spindle and the workpiece can be moved in the axial direction. By pushing the live center to the end of the workpiece, the workpiece is firmly fixed .
In addition, a drill chuck having a tapered shank, a tapered drill, or the like may be attached in addition to the above-described live center.
The abovementioned pressure bar has evolved to automatically replace tools such as live centers, drill chucks, and taper drills as the NC lathe is automated.
The conventional pressure-reducing valve will be described with reference to FIGS. 1 and 2. FIG.
1 and 2, the
A
A
The
Various types of tools such as the
When the
The above-described
The
Further, either one of the above-described
The conventional
1, when the
Thereafter, the
Also, even if the workpiece rotates, the
2, when the
However, the above-described
1, the main body of the
As described above, the
Further, as described above, a part of the
Since the hydraulic pressure is transmitted to the
In addition, the
The conventional
On the other hand, when the
When the
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a cylinder unit for moving a sleeve, And to provide a tailstock of an NC lathe.
Another object of the present invention is to minimize the pressure loss by allowing the action of the hydraulic pressure to actuate the sleeve to be physically close to the sleeve so as to maintain the sleeve at a higher pressure for an extended period of time, And to provide a tailstock of an NC lathe.
Another object of the present invention is to provide a tailstock of an NC lathe which can be more easily removed when a live center, a drill chuck, and a taper drill are removed from a tailstock.
The present invention has been made in view of the above problems, and it is an object of the present invention to at least partially solve the problems in the conventional arts. There will be.
According to an aspect of the present invention, there is provided a CN bearing lathe comprising: a body having a guide unit protruding toward an inner diameter side; A sleeve installed in the inner diameter of the body and having a guide groove formed therein for inserting a part of the guide unit and having a center hole and a tapered hole formed therein, And a cylinder liner is formed at one side of the sleeve, a part of the piston is inserted into the cylinder liner, a part of the piston is fixed to the body, and a sleeve cover is provided at an end of the cylinder liner, 1, a second chamber is formed, and the cylinder unit moves the sleeve by the hydraulic pressure of the operating oil supplied to the first and second chambers through the piston.
The cylinder unit may include a fixed cover having one end fixed to an end of the piston and the other end fixed to the body and having first and second hydraulic pressure conduits provided in the first and second chambers, .
The cylinder unit may further include: a first hydraulic pressure pipe formed in the piston to supply hydraulic fluid to the first chamber to retract the sleeve; And a second hydraulic pressure pipe formed in the piston to supply the hydraulic oil to the second chamber to advance the sleeve.
Further, the sleeve may further include a vent hole for communicating the guide groove and the center hole.
The details of other embodiments are included in the detailed description and drawings.
The cylinder head unit of the NC lathe according to the present invention as described above can be constructed such that the cylinder unit for moving the sleeve is disposed inside the depressurizing unit so that the cylinder unit does not protrude outside the depressurizing unit, , It is possible to eliminate the phenomenon that cutting chips are piled up or caught in a part of the cylinder unit.
In addition, since the pressure bearing of the NC lathe according to the present invention acts at a position physically close to the sleeve, the action of the hydraulic pressure for actuating the sleeve minimizes the pressure loss so that the sleeve can be maintained at a larger pressure for a long time, And can be stably supported.
In addition, since the center hole of the NC lathe according to the present invention is connected to the atmosphere through the atmosphere, no sound pressure is generated inside the center hole when the tail stock is pulled out, and live centers, drill chucks and taper drills can be more easily Can be removed.
FIG. 1 is a view for explaining an example in which a live center is installed in a tailstock of a conventional NC lathe.
2 is a view for explaining an example in which a live center is relaxed in a tailstock of a conventional NC lathe.
FIG. 3 is a view for explaining an example in which a live center is installed in a tailstock of an NC lathe according to an embodiment of the present invention.
4 is a view for explaining an example in which a live center is relaxed in a tailstock of an NC lathe 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 them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.
Like reference numerals refer to like elements throughout the specification, and like elements to those of the prior art are denoted by the same reference numerals, and a detailed description thereof will be omitted.
3 and 4, a description will be given of a
FIG. 3 is a view for explaining an example in which a live center is installed in a
3 and 4, the
The
A
A
The
The
Various types of tools such as the
When the
The above-described
A
The
The
The first
The above-described
On the other hand, a fixed
The fixed
That is, the fixed
The
3, when the
The
In addition, even if the workpiece rotates, the
4, when the
When the
As described above, in the
In addition, the
In addition, since the
The area of the
In addition, when a tool such as the
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.
The cardioplegia according to the present invention can be used to support a workpiece by being installed on a bed guide surface of an NC lathe.
100: tailstock 110: body
120: Sleeve 122: Guide groove
124: center hole 126: taper hole
128: Fixing member 130: Cylinder unit
132:
140: guide unit 150: live center
200: tailstock 210: body
220: Sleeve 222: Guide groove
224: center hole 226: taper hole
228: ventilation hole 230: cylinder unit
232:
234:
236: first hydraulic pipe 238: second hydraulic pipe
240: Sleeve cover
260: fixed
Claims (4)
A guide groove 222 is formed in the inner circumferential surface of the body 210 so as to be moved in the body 210 and a part of the guide unit 140 is inserted therein, and a center hole 224 and a taper A sleeve 220 in which a hole 226 is formed and a cylinder liner 232 is formed inside the rear;
A piston 234 having a piston head 234a inserted into the cylinder liner 232 and a rear end fixed to the body 210; And
And a sleeve cover (240) installed at a rear end of the sleeve (220) and through which the piston (234) passes,
The first and second chambers 232a and 232b are formed on both sides of the piston head 234a and the operating fluid is supplied to the first chamber 232a or the second chamber 232b through the piston 234 And the sleeve 220 is moved forward or backward by the hydraulic pressure of the operating oil
A reloader of an NC lathe.
The first and second hydraulic conduits 262 and 263 are fixed to the end of the piston 234 and the other end are fixed to the body 210 and provide hydraulic fluid to the first and second chambers 232a and 232b, 264) is formed on the outer surface of the stationary cover (260).
The piston (234)
A first hydraulic line 236 is formed so that the first hydraulic fluid is provided in the first chamber 232a and a second hydraulic line 238 is formed in the second chamber 232b so that the second hydraulic fluid is supplied to the second chamber 232b,
When the first hydraulic fluid is supplied to the first hydraulic pressure conduit 236, the sleeve 210 is retracted. When the second hydraulic fluid is supplied to the second hydraulic conduit 238, the sleeve 210 is advanced Features a tailstock of NC lathe.
Wherein the sleeve (220) further comprises a vent hole (228) for communicating the guide groove (222) with the center hole (224).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100042810A KR101629633B1 (en) | 2010-05-07 | 2010-05-07 | The Tailstock of the NC Lathe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100042810A KR101629633B1 (en) | 2010-05-07 | 2010-05-07 | The Tailstock of the NC Lathe |
Publications (2)
Publication Number | Publication Date |
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KR20110123371A KR20110123371A (en) | 2011-11-15 |
KR101629633B1 true KR101629633B1 (en) | 2016-06-14 |
Family
ID=45393538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100042810A KR101629633B1 (en) | 2010-05-07 | 2010-05-07 | The Tailstock of the NC Lathe |
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KR (1) | KR101629633B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200031770A (en) | 2018-09-17 | 2020-03-25 | 현대위아 주식회사 | Tailstock for machine tool with live center withdrawal function |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103394717A (en) * | 2013-08-15 | 2013-11-20 | 襄阳市领航者精密机械加工有限公司 | Automatic tailstock for large-scale sleeper tool |
CN104511760A (en) * | 2014-12-19 | 2015-04-15 | 昆山旭祥钣金工业有限公司 | Tail rack sleeve and reaming clamp |
CN104690307A (en) * | 2015-01-29 | 2015-06-10 | 山东鲁南机床有限公司 | Built-in hydraulic tail seat for vertical numerical control lathe |
CN113579777B (en) * | 2021-08-18 | 2022-09-16 | 陕西航空宏峰精密机械工具有限责任公司 | Machining clamp for workpiece with taper hole on numerical control machine tool |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0135083Y1 (en) * | 1995-12-30 | 1999-03-30 | 석진철 | Tail stock stroke control device of cnc lathe |
KR100272032B1 (en) * | 1998-05-26 | 2000-11-15 | 권영두 | Workpiece supporting device with at least feeding force |
-
2010
- 2010-05-07 KR KR1020100042810A patent/KR101629633B1/en active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200031770A (en) | 2018-09-17 | 2020-03-25 | 현대위아 주식회사 | Tailstock for machine tool with live center withdrawal function |
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KR20110123371A (en) | 2011-11-15 |
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