CN106001636A - Tailstock and numerical control machine tool - Google Patents
Tailstock and numerical control machine tool Download PDFInfo
- Publication number
- CN106001636A CN106001636A CN201610616730.3A CN201610616730A CN106001636A CN 106001636 A CN106001636 A CN 106001636A CN 201610616730 A CN201610616730 A CN 201610616730A CN 106001636 A CN106001636 A CN 106001636A
- Authority
- CN
- China
- Prior art keywords
- tailstock
- bearing
- screw mandrel
- described bearing
- gland
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
Abstract
The invention discloses a tailstock and a numerical control machine tool. The tailstock comprises a tailstock body, a bearing set, an elastic part and a locking part; the tailstock body is provided with a through bearing seat hole and used for containing the tail of a lead screw, the bearing set is installed in the bearing seat hole in a pressed mode and used for being arranged on a supporting section of the lead screw in a sleeving mode so as to limit the circumferential movement of the lead screw, the elastic part is arranged in the bearing set hole, located on one side of the inner end face of hte bearing set and used for enabling the elastic part to abut against the portion between the inner end face of the bearing set and a protruding section of the lead screw, the locking part is arranged in the bearing seat hole, located on one side of the outer end face of the bearing set and used for being fixed with a locking note section of the lead screw and abutting against the outer end face of the bearing set. According to the tailstock and the numerical control machine tool, the effects of prolonging the service life of a bearing and improving the precision are achieved.
Description
Technical field
The present invention relates to machine tool technology field, particularly to a kind of tailstock and Digit Control Machine Tool.
Background technology
Being currently used for the tailstock of support screw, generally inside arranges pair of bearings, is connect with tailstock by bearing
Touch spacing screw mandrel.But such scheme, usually can cause gap between pair of bearings to be difficult to eliminate,
Thus the problem causing the mobile accuracy difference of screw mandrel；And owing to screw mandrel is that directly bearing is installed in compressing, from
And cause the phenomenon in the service life being substantially reduced bearing.
Summary of the invention
The main object of the present invention is to provide a kind of tailstock and Digit Control Machine Tool, it is intended to improve the use longevity of bearing
Life, improves precision.
For achieving the above object, the tailstock that the present invention proposes, assembles for the afterbody with screw mandrel, described silk
The afterbody of bar includes fore shaft section, supporting section and the raised section set gradually on the direction of head end by its tail end；
Described tailstock includes:
Pedestal, is provided with a through bearing saddle bore, for housing the afterbody of described screw mandrel；
Bearing group, press-fits in described bearing saddle bore, and for being sheathed on the supporting section of described screw mandrel,
Thus the circumference limiting described screw mandrel moves；
Elastic component, is installed in described bearing saddle bore, and is positioned at the inner face side of described bearing group, uses
It is resisted against between the inner face of described bearing group and the projection section of described screw mandrel in elasticity；
Locking member, is installed in described bearing saddle bore, and is positioned at the side, outer face of described bearing group, uses
Fix in the fore shaft section with described screw mandrel and support with the outer face of described bearing group.
Preferably, described elastic component is disc spring.
Preferably, described locking member is self-locking nut, is used for and the spiral shell of setting in the fore shaft section of described screw mandrel
Stricture of vagina is screwed together.
Preferably, described bearing group includes two angular contact bearing bearings, two described angular contact bearing strings
Connection configuration, and face the head end of screw mandrel.
Preferably, described elastic component and locking member all inner rings with described bearing are supported.
Preferably, also including bearing gland, described bearing gland is fixing with described pedestal to be connected, and supports
Inner face in described bearing group.
Preferably, described bearing gland is supported with the outer ring of described bearing.
Preferably, described bearing gland in the form of a ring, passes with for described screw mandrel, described bearing gland bag
Include the gland body around described bearing saddle bore, and be convexly equipped on described gland body and insert described axle
Muscle supported by one circle of bearing hole；Described gland body is connected fixing with described pedestal by multiple bolts, institute
State and support muscle and stretch into and support the outer ring of described bearing along the hole wall of described bearing saddle bore.
The Digit Control Machine Tool that the present invention provides, including support, motor, screw mandrel and tailstock；Described motor and tail
Seat is fixing with described support to be connected；Described screw mandrel includes head end and tail end, and described head end is with described motor even
Connecing, described tail end is connected with described tailstock, and the afterbody of described screw mandrel includes by its tail end to the direction of head end
On the fore shaft section, supporting section and the projection section that set gradually；Described tailstock uses above-mentioned tailstock.
Preferably, described tailstock is positioned with described support by pin, and solid with described support by bolt
Fixed connection.
Tailstock provided by the present invention and Digit Control Machine Tool, after mounting, due to the elastic force of elastic component
Under effect, the both sides end face of two bearings is extruded by elastic component and locking member respectively, therefore can be effective
Eliminate the gap between two bearings, it is to avoid loosen and affect the kinematic accuracy of screw mandrel.Further, due to bearing
It is connected by elastic component with between screw mandrel, then can play buffering and improve the effect in the service life of bearing
Really.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other according to the structure shown in these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of Digit Control Machine Tool one embodiment of the present invention；
Fig. 2 is the partial exploded view of the Digit Control Machine Tool shown in Fig. 1；
Fig. 3 is the cross-sectional schematic in A-A direction in Fig. 1；
Fig. 4 is the enlarged diagram of a-quadrant in Fig. 3.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
It is to be appreciated that directional instruction in the embodiment of the present invention (such as upper and lower, left and right, front,
After ...) it is only used for explanation phase para-position under a certain particular pose (as shown in drawings) between each parts
Putting relation, motion conditions etc., if this particular pose changes, then directionality instruction is the most corresponding
Ground changes therewith.
It addition, the description relating to " first ", " second " etc. in the present invention is only used for describing purpose, and
It is not intended that indicate or imply its relative importance or the implicit number indicating indicated technical characteristic
Amount.Thus, define " first ", the feature of " second " can be expressed or implicitly include at least one
Individual this feature.It addition, the technical scheme between each embodiment can be combined with each other, but must be with
Based on those of ordinary skill in the art are capable of, when conflicting or nothing occurs in the combination of technical scheme
Will be understood that when method realizes that the combination of this technical scheme does not exists, the most not at the protection model of application claims
Within enclosing.
The present invention proposes a kind of tailstock and a kind of Digit Control Machine Tool, in order to be illustrated more clearly that described tailstock
Technical characteristic and its technique effect brought, have employed the numerical control of above-mentioned tailstock in the present embodiment
Describe in detail as a example by lathe.
Fig. 1 to Fig. 4 shows an embodiment of Digit Control Machine Tool of the present invention.
Refer to Fig. 1, a kind of Digit Control Machine Tool that the present invention provides, including support 300, motor 400, silk
Bar 200 and tailstock 100.Described motor 400 and tailstock 100 are fixed with described support 300 and are connected；Described
Screw mandrel 200 includes that head end and tail end 240, described head end are connected with described motor 400, described tail end 240
It is connected with described tailstock 100.Wherein, motor 400 is servomotor, and screw mandrel 200 passes through servomotor
The work top being arranged on screw mandrel that is rotated and then drives of 400 moves.
Incorporated by reference to referring to Fig. 2, the afterbody of described screw mandrel 200 includes by its tail end 240 on the direction of head end
Fore shaft section 210, supporting section 220 and the projection section 230 set gradually.Wherein, in the present embodiment, screw mandrel
The afterbody of 200 is that ladder is shaft-like, and projection section 230 is formed at major diameter bar segment, supporting section 220 and projection section
230 are formed at minor diameter bar segment.
Described tailstock 100 includes pedestal 110, bearing group 120, elastic component 130 and locking member 140.Please
In conjunction with referring to Fig. 3 and Fig. 4, wherein:
Described pedestal 110, is provided with a through bearing saddle bore 111, the afterbody of accommodating described screw mandrel 200.
The through hole that generally bearing saddle bore 111 is provided in round.
Described bearing group 120, press-fits in described bearing saddle bore 111, and is sheathed on described screw mandrel 200
Supporting section 220 on, thus the circumference limiting described screw mandrel 200 is mobile.Wherein, described bearing group 120
Including two bearings 121 being coaxially disposed.Bearing can be pacified by the way of pressure is installed or heated installation
It is loaded in bearing saddle bore 111.The present embodiment describes in detail as a example by two bearings 121, but does not limit
Surely it is only capable of using two bearings 121, in other embodiments, it is also possible to be 3 or 4 etc..
Described elastic component 130, is installed in described bearing saddle bore 111, and is positioned at described bearing group 120
Inner face 122 side, elasticity is resisted against inner face 122 and the described screw mandrel 200 of described bearing group 120
Projection section 230 between.
Described locking member 140, is installed in described bearing saddle bore 111, and is positioned at described bearing group 120
Side, outer face 123, fixing with the fore shaft section 210 of described screw mandrel 200 and with described bearing group 120
Outer face 123 is supported.Wherein, between locking member 140 and fore shaft section 210 can be spirally connected, clamping or
The modes such as riveting are fixed.
The Digit Control Machine Tool that the present embodiment is provided, after mounting, due to the work of the elastic force of elastic component 130
Under with, the both sides end face of two bearings 121 respectively by elastic component 130 and the extruding of locking member 140,
Therefore the gap between two bearings 121 can effectively be eliminated, it is to avoid loosen and affect the motion essence of screw mandrel 200
Degree.Further, owing to being connected by elastic component 130 between bearing 121 with screw mandrel 200, then can rise
The effect in the service life of bearing 121 is improved to buffering.
In the present embodiment, described tailstock 100 is positioned with described support 300 by pin 163, and passes through
Bolt 162 is fixing with described support 300 to be connected.By using pin 163, it is possible to be easy to workman the most right
Position, and accurately control the position of tailstock 100, reach to improve the effect of quality of fit.
Preferably, described elastic component 130 is disc spring, and owing to disc spring rigidity is big, buffering vibration absorption ability is strong,
Big load can be born with small deformation, be thus suitable for the occasion that axial space requirement is little.Certainly real at other
Execute in example, it is also possible to use the elastic component such as compression spring, block rubber.
Preferably, described locking member 140 is self-locking nut, for the fore shaft section 210 with described screw mandrel 200
The threads of upper setting connects.On the one hand, after screwing tight due to self-locking nut, by elastic component 130
Elastic force, then can be locked with the screw thread in fore shaft section 210, then can realize stronger locking effect from
And self-locking nut stress can be avoided less and loosening, and the opposing party, can be in rotary moving by self-locking nut
Adjust the decrement to elastic component 130, thus there is the effect being conveniently adjusted.
Preferably, described bearing 121 is angular contact bearing.Angular contact ball bearing can bear the most negative simultaneously
Lotus and axial load, and can work at higher rotational speeds, therefore it is applicable to the present embodiment.And this
In embodiment, use the axial load that two bearings 121 can be bigger.The bearing 121 of the present embodiment is adopted
Be arranged in series, and it faces the head end of screw mandrel 200.Wherein, the thick end of the outer ring of bearing 121
For the back of the body, thin end is face.
Preferably, described elastic component 130 and locking member 140 all inner rings 124 with described bearing 121 support
Top.
Preferably, described tailstock 100 also includes bearing gland 150, described bearing gland 150 and described seat
Body 110 is fixing to be connected, and is resisted against the inner face 122 of described bearing group 120.By arranging bearing gland
150, then can keep out bearing 121 and move towards the head end direction of screw mandrel 200, it is to avoid described bearing 121
Loosen.Preferably, described bearing gland 150 is supported with the outer ring 125 of described bearing 121.
Preferably, described bearing gland 150 in the form of a ring, passes with for described screw mandrel 200, described axle
Pressure cap 150 includes the gland body 151 around described bearing saddle bore 111, and is convexly equipped in described gland
On body 151 and insert a circle of described bearing saddle bore 111 and support muscle 152.Described gland body 151 with
Described pedestal 110 connects fixing by multiple bolts 161, described in support muscle 152 along described bearing block
The hole wall in hole 111 stretches into and supports the outer ring 125 of described bearing 121.In other embodiments, bearing pressure
Lid 150 can also be adopted outer ring 125 with described bearing 121 in other ways and abut, such as, be spaced many
Individual projection.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention,
Every under the inventive concept of the present invention, utilize the equivalent structure that description of the invention and accompanying drawing content are made
Conversion, or directly/be indirectly used in other relevant technical fields and be included in the patent protection model of the present invention
In enclosing.
Claims (10)
1. a tailstock, for assembling with the afterbody of screw mandrel, the afterbody of described screw mandrel include by its tail end to
Fore shaft section, supporting section and the projection section set gradually on the direction of head end；It is characterized in that, described tailstock
Including:
Pedestal, is provided with a through bearing saddle bore, for housing the afterbody of described screw mandrel；
Bearing group, press-fits in described bearing saddle bore, and for being sheathed on the supporting section of described screw mandrel,
Thus the circumference limiting described screw mandrel moves；
Elastic component, is installed in described bearing saddle bore, and is positioned at the inner face side of described bearing group, uses
It is resisted against between the inner face of described bearing group and the projection section of described screw mandrel in elasticity；
Locking member, is installed in described bearing saddle bore, and is positioned at the side, outer face of described bearing group, uses
Fix in the fore shaft section with described screw mandrel and support with the outer face of described bearing group.
2. tailstock as claimed in claim 1, it is characterised in that described elastic component is disc spring.
3. tailstock as claimed in claim 2, it is characterised in that described locking member is self-locking nut, uses
In being connected with the threads arranged in the fore shaft section of described screw mandrel.
4. tailstock as claimed in claim 3, it is characterised in that described bearing group includes two angular contact
Bearing bearing, two described angular contact bearing arranged in series, and face the head end of screw mandrel.
5. tailstock as claimed in claim 4, it is characterised in that described elastic component and locking member all with institute
The inner ring stating bearing is supported.
6. the tailstock as described in any one of claim 1 to 5, it is characterised in that also include bearing gland,
Described bearing gland is fixing with described pedestal to be connected, and is resisted against the inner face of described bearing group.
7. tailstock as claimed in claim 6, it is characterised in that described bearing gland and described bearing
Outer ring is supported.
8. tailstock as claimed in claim 7, it is characterised in that described bearing gland in the form of a ring, in order to
Passing for described screw mandrel, described bearing gland includes the gland body around described bearing saddle bore, and convex
Muscle supported by the circle being located on described gland body and inserting described bearing saddle bore；Described gland body and institute
State pedestal and connect fixing by multiple bolts, described in support muscle and stretch into also along the hole wall of described bearing saddle bore
Support the outer ring of described bearing.
9. a Digit Control Machine Tool, including support, motor, screw mandrel and tailstock；Described motor and tailstock and institute
State the fixing connection of support；Described screw mandrel includes that head end and tail end, described head end are connected with described motor, institute
State tail end to be connected with described tailstock, it is characterised in that the afterbody of described screw mandrel includes by its tail end to head end
Direction on the fore shaft section, supporting section and the projection section that set gradually；Described tailstock is claim 1 to 8
Tailstock described in any one.
10. Digit Control Machine Tool as claimed in claim 9, it is characterised in that described tailstock by pin with
Described support positions, and is connected by bolt and described support are fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610616730.3A CN106001636A (en) | 2016-07-28 | 2016-07-28 | Tailstock and numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610616730.3A CN106001636A (en) | 2016-07-28 | 2016-07-28 | Tailstock and numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001636A true CN106001636A (en) | 2016-10-12 |
Family
ID=57115359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610616730.3A Pending CN106001636A (en) | 2016-07-28 | 2016-07-28 | Tailstock and numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720510A (en) * | 2020-05-22 | 2020-09-29 | 福建省黑石精密机械有限公司 | High-precision movement shaft of machine tool and working method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251144A (en) * | 1987-04-02 | 1988-10-18 | Mitsubishi Metal Corp | Ball screw |
| CN2764552Y (en) * | 2004-12-30 | 2006-03-15 | 陈战函 | Transmission device of numerical control machine |
| CN201455288U (en) * | 2009-05-13 | 2010-05-12 | 温岭市华驰机械有限公司 | Tailstock of numerical control machine tool |
| CN103143971A (en) * | 2013-03-01 | 2013-06-12 | 江苏松野数控科技有限公司 | Pre-drawing structure of ball screw |
| CN203019107U (en) * | 2012-12-31 | 2013-06-26 | 宁波天瑞精工机械有限公司 | Screw rod mechanism of numerical control machine tool |
| CN103317377A (en) * | 2013-05-31 | 2013-09-25 | 济南二机床集团有限公司 | High-speed feeding transmission mechanism for ram type milling head for numerical control machine tool |
| CN203726240U (en) * | 2014-03-11 | 2014-07-23 | 上海人本精密机械有限公司 | High-speed ball screw unit |
| CN104227035A (en) * | 2014-07-29 | 2014-12-24 | 宁波海天精工股份有限公司 | Removing mechanism for tailstock center of machine tool |
| CN205927140U (en) * | 2016-07-28 | 2017-02-08 | 深圳市创世纪机械有限公司 | Tailstock and digit control machine tool |
-
2016
- 2016-07-28 CN CN201610616730.3A patent/CN106001636A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251144A (en) * | 1987-04-02 | 1988-10-18 | Mitsubishi Metal Corp | Ball screw |
| CN2764552Y (en) * | 2004-12-30 | 2006-03-15 | 陈战函 | Transmission device of numerical control machine |
| CN201455288U (en) * | 2009-05-13 | 2010-05-12 | 温岭市华驰机械有限公司 | Tailstock of numerical control machine tool |
| CN203019107U (en) * | 2012-12-31 | 2013-06-26 | 宁波天瑞精工机械有限公司 | Screw rod mechanism of numerical control machine tool |
| CN103143971A (en) * | 2013-03-01 | 2013-06-12 | 江苏松野数控科技有限公司 | Pre-drawing structure of ball screw |
| CN103317377A (en) * | 2013-05-31 | 2013-09-25 | 济南二机床集团有限公司 | High-speed feeding transmission mechanism for ram type milling head for numerical control machine tool |
| CN203726240U (en) * | 2014-03-11 | 2014-07-23 | 上海人本精密机械有限公司 | High-speed ball screw unit |
| CN104227035A (en) * | 2014-07-29 | 2014-12-24 | 宁波海天精工股份有限公司 | Removing mechanism for tailstock center of machine tool |
| CN205927140U (en) * | 2016-07-28 | 2017-02-08 | 深圳市创世纪机械有限公司 | Tailstock and digit control machine tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720510A (en) * | 2020-05-22 | 2020-09-29 | 福建省黑石精密机械有限公司 | High-precision movement shaft of machine tool and working method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20161012 |