CN102039430B - Small-size mandrel unit capable of changing tool and spindle device - Google Patents
Small-size mandrel unit capable of changing tool and spindle device Download PDFInfo
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- CN102039430B CN102039430B CN2009102041772A CN200910204177A CN102039430B CN 102039430 B CN102039430 B CN 102039430B CN 2009102041772 A CN2009102041772 A CN 2009102041772A CN 200910204177 A CN200910204177 A CN 200910204177A CN 102039430 B CN102039430 B CN 102039430B
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Abstract
The invention discloses a small-size mandrel unit capable of changing a tool and a spindle device. The mandrel unit comprises a shaft sleeve, a slider, a collet, and an elastic piece, wherein the slider is sheathed in the shaft sleeve, the collet is connected with the slider in locking manner, the elastic piece is used for generating elastic force to enable the slider to pull the collet to towards the inner part of the shaft sleeve, the slider is provided with a main body and a ring sleeve which is fixedly arranged on the main body, the main body is provided with a large-diameter part, a small-diameter part and a screw hole which is matched with the large-diameter part, and the ring sleeve is fixedly arranged on the small-diameter part. The spindle device comprises the mandrel unit, a shell unit, a motor, a fore bearing, a rear bearing and a headstock unit. The spindle device utilizes staggered positions of the ring sleeve and the screw hole, and is suitable for small-size and high-revolving speed mandrel units.
Description
Technical field
The present invention relates to a kind of processing equipment, but particularly relate to a kind of miniaturization axle unit and main shaft device of tool changing.
Background technology
Like Fig. 1 and shown in Figure 2; Existing a kind of main shaft device comprises that an axle unit 1, one are set in motor 3, one that the outside housing unit in this axle unit 12, one be installed in 2 of this axle unit 1 and this housing units and are arranged on these motor 2 front sides and are installed in this axle unit 1 and the preceding air bearing 4 of 2 of this housing units and one are arranged on these motor 3 rear sides and are installed in this axle unit 1 and the back air bearing 5 of 2 of this housing units.This axle unit 1 has collet chuck 103 and one that an axle sleeve 101, one be set in sliding part 102 in this axle sleeve 101, one and these sliding part 102 interlockings provides this sliding part 102 to draw to pull the spring element 104 of this collet chuck 103 towards these axle sleeve 101 inner fit elastic force.
As shown in Figure 2; This sliding part 102 has a body 105 and a ring set 106 that is installed in this body 105 and is hollow and annular; This body 105 has a screw 107 that is arranged on inside and supplies these collet chuck 103 interlockings, and this ring set 106 extends from these body 105 front ends backwards.
Though utilize the setting of this ring set 106, when being provided with respect to this axle sleeve 101 linear moving, this sliding part 102 produces low frictional resistance, the position is set corresponding to this screw 107 because of this ring set 106; So that the miniaturization of this sliding part 102 is restricted, that is to say, when the size decreases of sliding part 102; There is not the thick tapping of enough meat to produce screw 107; And high rotating speed (for example the design that quality is lower, size is less must be adopted in the axle unit 1 of 200000～300000rpm) main shaft devices, to keep suitable rotator inertia square; Or be drilled with the machine in tiny aperture, also must the less axle unit 1 of design size.The axle sleeve 101 of miniaturization can't ccontaining above-mentioned sliding part 102 because internal orifice dimension diminishes.
Moreover; In order to make this ring set 106 be fixed in this body 105; This body 105 also has an external screw thread 108 that is arranged on outer peripheral face, and this ring set 106 has an internal thread 106 ' that is screwed on this external screw thread 108, causes the miniaturization of this sliding part 102 to receive bigger restriction thus.
Summary of the invention
But an object of the present invention is is providing a kind of miniaturization axle unit that dwindles the tool changing of radial dimension.
But another object of the present invention is to provide a kind of main shaft device that dwindles the miniaturization axle unit with tool changing of radial dimension.
But the miniaturization axle unit of the present invention's tool changing comprises that collet chuck and one that an axle sleeve, one are set in sliding part in this axle sleeve, one and this sliding part interlocking provide this sliding part to draw to pull the spring element of this collet chuck towards the inner fit elastic force of this axle sleeve.This axle sleeve is hollow tubular and extends along an axis; This sliding part has a body and a ring set that is installed in this body; This body is step shape; And have minor diameter part, one that a large-diameter portion, one be engaged on this large-diameter portion rear side along this axis and be engaged on shoulder and one the screw between this large-diameter portion and this minor diameter part should axis being provided with, this screw the position is set corresponding to this large-diameter portion, this ring set be installed in this minor diameter part and certainly this shoulder extend backwards.This collet chuck in this sliding part one side, and has the spiro union portion that a spiral shell is located at this screw along this axis interlocking.It is inner that this spring element is installed in this axle sleeve, and provide this sliding part to draw to pull the elastic force of this collet chuck towards the inner fit of this axle sleeve, and make this collet chuck produce the bundle folder towards this axis.
But the present invention has the main shaft device of the miniaturization axle unit of tool changing, comprises an axle unit, a housing unit, a motor, a fore bearing, a rear bearing and a headstock unit.This axle unit extends along an axis; And have an axle sleeve, one and be set in the sliding part in this axle sleeve, a collet chuck and a spring element that is set between this axle sleeve and this sliding part along this axis and this sliding part interlocking along this axis; This sliding part has a body and a ring set that is installed in this body; This body is step shape; And have minor diameter part, that a large-diameter portion, one be engaged on this large-diameter portion rear side along this axis and be engaged on shoulder and one the screw between this large-diameter portion and this minor diameter part should axis being provided with; This screw the position is set corresponding to this large-diameter portion, this ring set be installed in this minor diameter part and certainly this shoulder extend backwards, this collet chuck has the spiro union portion that a spiral shell is located at this screw; This spring element provides this sliding part to draw to pull the elastic force of this collet chuck towards the inner fit of this axle sleeve, and makes this collet chuck produce the bundle folder towards this axis.This housing unit is hollow tube-shape and is set in this outside, axle unit.This motor is installed between this axle unit and this housing, and drives this axle unit rotational.This fore bearing is installed between this axle unit and this housing, and is arranged on this motor front side.This rear bearing is installed between this axle unit and this housing, and is arranged on this motor rear side, and this headstock unit has the headstock and the pressure cylinder that pushes away this sliding part of pulling that are fixedly arranged on this housing unit.
Beneficial effect of the present invention is: utilize this ring set be installed in this minor diameter part and certainly this shoulder extend backwards, can dwindle radial dimension.
Description of drawings
Fig. 1 is the combination section of existing a kind of main shaft device;
Fig. 2 is the local enlarged diagram of this kind main shaft device;
But Fig. 3 is the combination section of a preferred embodiment of main shaft device of the miniaturization axle unit of the present invention's tool changing;
Fig. 4 is the local enlarged diagram of this preferred embodiment;
Fig. 5 is another local enlarged diagram of this preferred embodiment, explains that a ring set is cemented on the body.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
Like Fig. 3 and shown in Figure 4; But the present invention has the preferred embodiment of main shaft device 100 of the miniaturization axle unit 10 of tool changing, comprises that also one is set in the outside housing unit in this axle unit 10 20, one and is set in the motor 30 of 20 of this axle unit 10 and this housing units, fore bearing that is arranged on these motor 30 front sides 40, rear bearing that is arranged on these motor 30 rear sides 50, a thrust bearing 60 and a headstock unit 70 that is arranged on these thrust bearing 60 rear sides that is arranged on these rear bearing 50 rear sides.
This axle unit 10 comprises that collet chuck 13 and one that axle sleeve that the axis L in an edge extends 11, one are set in sliding part 12 in this axle sleeve 11, one and these sliding part 12 interlockings provide this sliding part 12 to draw to pull the spring element 14 of this collet chuck 13 towards these axle sleeve 11 inner fit elastic force.
This axle sleeve 11 has the opposite outer ring surface 113 of an inner ring surface 112 that defines an axis hole 111 and and this inner ring surface 112; This inner ring surface 112 has one perpendicular to this axis L and to location shoulder 114 that should collet chuck 13, this outer ring surface 113 have a leading section 115, rearward end 116, one be located at this rearward end 116 and along the location diskware 118 that radially extends between the stage casing 117 of 116 of this leading section 115 and this rearward end and one.
This sliding part 12 is set in this axis hole 111, and has a body 121 and a ring set 122 that is installed in this body 121.This body 121 is step shape; And have shoulder 125 and one that minor diameter part 124, one that a large-diameter portion 123, one be engaged on these large-diameter portion 123 rear sides along this axis L be engaged on 124 of this large-diameter portion 123 and this minor diameter parts a screw 126 to should axis L being provided with, this screw 126 the position is set corresponding to this large-diameter portion 123.Cooperate and consult Fig. 5; The ring set 122 of present embodiment is a self-lubricating bearing; And have most and be arranged with the annular groove 1221 of inserting viscose in inner ring surface and confession; Borrowing viscose in this annular groove 1221 make this ring set 122 be installed in this minor diameter part 124 and certainly this shoulder 125 extend backwards, and produce low frictional resistance when this sliding part 12 is provided with respect to these axle sleeve 11 linear moving.
This collet chuck 13 in these sliding part 12 1 sides, and has the spiro union portion 131 that a spiral shell is located at this screw 126 along this axis L interlocking.
This spring element 14 is installed in inner and butted 123 of the large-diameter portions at this location shoulder 114 and this body 12 of this axle sleeve 11, impels this collet chuck 13 to produce to restraint towards this axis L and presss from both sides.
This housing unit 20 is hollow tube-shape, and has a shell 21 and a coolant jacket 22 that is installed in these shell 21 inside.
This motor 30 is installed in stage casing 117 and 22 of this coolant jackets of this axle unit 10 and drives this axle unit 10 and rotates.
This fore bearing 40 is an air bearing, is installed in 22 of leading section 115 and this coolant jackets of this axle unit 10, and is arranged on this motor 30 front sides.
This rear bearing 50 is an air bearing, is installed in 22 of rearward end 116 and this coolant jackets of this axle unit 10, and is arranged on these motor 30 rear sides, these location diskware 118 front sides.
This thrust bearing 60 is an air bearing, is installed in 22 of rearward end 116 and this coolant jackets of this axle unit 10, and is arranged on this location diskware 118 rear sides with respect to this rear bearing 50.
This headstock unit 70 has one and is fixedly arranged on this housing unit 10 and headstock 71 and a pressure cylinder 72 that pushes away this sliding part 12 of pulling at these thrust bearing 60 rear sides.When this sliding part 12 received these pressure cylinder 72 stoppers and drive these collet chuck 13 reaches, this collet chuck 13 of pine oil was to carry out tool changing.
The present invention utilize this ring set 122 be installed in the minor diameter part 124 of this body 121 and certainly this shoulder 125 extend backwards.Then utilize the setting of this ring set 122; When not only being provided with respect to these axle sleeve 11 linear moving, this sliding part 12 produces low frictional resistance; And because this screw 126 corresponding to this large-diameter portion 123, though the outside dimension of sliding part 12 diminishes, still has the thick tapping of enough meat at large-diameter portion 123; So the whole radial dimension of this sliding part 12 can miniaturization, be applicable to high rotating speed or bore miniaturization axle unit 10, the main shaft device 100 of pore.
What deserves to be mentioned is that ring set 122 of the present invention is to utilize gluing to combine with this body 121, fixed firm; And ring set 106 shown in Figure 1 combines with screw-in version with body 105; Then can be because of the back clearance problem, possibly produce loosening, so; The concreteness of ring set 122 of the present invention and this body 121 also is superior to existing main shaft device.
Claims (11)
1. but the miniaturization axle unit of a tool changing comprises that an axle sleeve, one are set in collet chuck and a spring element of sliding part in this axle sleeve, one and this sliding part interlocking; This miniaturization axle unit is characterised in that:
This axle sleeve is axis of hollow tubular and edge and extends;
This sliding part; Be set in this axle sleeve; And having a body and a ring set that is installed in this body, this body is step shape, and has minor diameter part, one that a large-diameter portion, one be engaged on this large-diameter portion rear side along this axis and be engaged on shoulder and one screw to should axis being provided with between this large-diameter portion and this minor diameter part; This screw the position is set corresponding to this large-diameter portion, this ring set be installed in this minor diameter part and certainly this shoulder extend backwards;
This collet chuck in this sliding part one side, and has the spiro union portion that a spiral shell is located at this screw along this axis interlocking;
This spring element, it is inner to be installed in this axle sleeve, and provides this sliding part to draw to pull the elastic force of this collet chuck towards the inner fit of this axle sleeve, and makes this collet chuck produce the bundle folder towards this axis.
2. but the miniaturization axle unit of tool changing as claimed in claim 1, it is characterized in that: the ring set of this sliding part is a self-lubricating bearing.
3. but the miniaturization axle unit of tool changing as claimed in claim 2 is characterized in that: the ring set of this sliding part has most and is arranged with the annular groove of inserting viscose in inner ring surface and confession.
4. but the miniaturization axle unit of tool changing as claimed in claim 1; It is characterized in that: this axle sleeve has an inner ring surface that defines an axis hole; This inner ring surface has one perpendicular to this axis and to location shoulder that should collet chuck, this spring element is butted between the large-diameter portion of this location shoulder and this body.
5. but the main shaft device with miniaturization axle unit of tool changing comprises an axle unit, a housing unit, a motor, a fore bearing, a rear bearing and a headstock unit; This main shaft device is characterised in that:
This axle unit; Extend along an axis; And have an axle sleeve, one and be set in the sliding part in this axle sleeve, a collet chuck and a spring element that is set between this axle sleeve and this sliding part along this axis and this sliding part interlocking along this axis; This sliding part has a body and a ring set that is installed in this body; This body is step shape, and has minor diameter part, one that a large-diameter portion, one be engaged on this large-diameter portion rear side along this axis and be engaged on shoulder and one screw to should axis being provided with between this large-diameter portion and this minor diameter part, this screw the position is set corresponding to this large-diameter portion; This ring set be installed in this minor diameter part and certainly this shoulder extend backwards; This collet chuck has the spiro union portion that a spiral shell is located at this screw, and this spring element provides this sliding part to draw to pull the elastic force of this collet chuck towards the inner fit of this axle sleeve, and makes this collet chuck produce the bundle folder towards this axis;
This housing unit is hollow tube-shape and is set in this outside, axle unit;
This motor is installed between this axle unit and this housing unit, and drives this axle unit rotational;
This fore bearing is installed between this axle unit and this housing unit, and is arranged on this motor front side;
This rear bearing is installed between this axle unit and this housing unit, and is arranged on this motor rear side;
This headstock unit has a headstock and a pressure cylinder that pushes away this sliding part of pulling that is fixedly arranged on this housing unit.
6. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 5, it is characterized in that: the ring set of this axle unit is a self-lubricating bearing.
7. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 6 is characterized in that: the ring set of this axle unit has most and is arranged with the annular groove of inserting viscose in inner ring surface and confession.
8. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 5; It is characterized in that: the axle sleeve of this axle unit has an inner ring surface that defines an axis hole; This inner ring surface has one perpendicular to this axis and to location shoulder that should collet chuck, this spring element is butted between the large-diameter portion of this location shoulder and this body.
9. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 5; It is characterized in that: the axle sleeve of this axle unit also has one and is located at this rear bearing rear side and along the location diskware that radially extends, this main shaft device also includes a thrust bearing of being located at this location diskware rear side.
10. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 9, it is characterized in that: this fore bearing, this rear bearing and this thrust bearing are all air bearing.
11. but the main shaft device with miniaturization axle unit of tool changing as claimed in claim 10; It is characterized in that: this housing unit has a shell and a coolant jacket that is installed in this enclosure; This motor is installed between this axle unit and this coolant jacket, and this fore bearing is installed between this axle unit and this coolant jacket, and is arranged on this motor front side; This rear bearing is installed between this axle unit and this coolant jacket; And be arranged on this motor rear side, this diskware front side, location, this thrust bearing is installed between this axle unit and this coolant jacket, and is arranged on this location diskware rear side with respect to this rear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102041772A CN102039430B (en) | 2009-10-19 | 2009-10-19 | Small-size mandrel unit capable of changing tool and spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102041772A CN102039430B (en) | 2009-10-19 | 2009-10-19 | Small-size mandrel unit capable of changing tool and spindle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039430A CN102039430A (en) | 2011-05-04 |
| CN102039430B true CN102039430B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102041772A Active CN102039430B (en) | 2009-10-19 | 2009-10-19 | Small-size mandrel unit capable of changing tool and spindle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039430B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244559B (en) * | 2012-02-03 | 2016-01-20 | 达航科技股份有限公司 | Bush type pneumatic bearing and main shaft device |
| WO2018163428A1 (en) * | 2017-03-10 | 2018-09-13 | 株式会社牧野フライス製作所 | Main spindle device for machine tool |
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2009
- 2009-10-19 CN CN2009102041772A patent/CN102039430B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102039430A (en) | 2011-05-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: Taipei City, Taiwan, China Patentee after: Dar Harnq Industry Co., Ltd. Address before: Taiwan, Taipei, China Zhongshan District No. 1 East Road, No. 132, Lane 3, building 15, building Patentee before: Dar Harnq Industry Co., Ltd. |