CN205927140U - Tailstock and digit control machine tool - Google Patents
Tailstock and digit control machine tool Download PDFInfo
- Publication number
- CN205927140U CN205927140U CN201620814905.7U CN201620814905U CN205927140U CN 205927140 U CN205927140 U CN 205927140U CN 201620814905 U CN201620814905 U CN 201620814905U CN 205927140 U CN205927140 U CN 205927140U
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- CN
- China
- Prior art keywords
- bearing
- tailstock
- screw mandrel
- saddle bore
- described bearing
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- 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.)
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Abstract
The utility model discloses a tailstock and digit control machine tool, wherein, the tailstock includes: the pedestal is equipped with a bearing saddle bore that has a perfect understanding, is used for the holding the afterbody of lead screw, bearing group, the pressure equipment in in the bearing saddle bore to be used for the cover to locate in the support section of lead screw, thus the restriction the circumference of lead screw removes, the elastic component, install in in the bearing saddle bore, and lie in interior terminal surface one side of bearing group for elasticity replace in the interior terminal surface of bearing group with between the protruding section of lead screw, the retaining member, install in in the bearing saddle bore, and lie in outer terminal surface one side of bearing group, be used for with the fore shaft section of lead screw fixed and with the outer terminal surface of bearing group is replaced. The utility model discloses has the effect that improves the bearing life -span and improve the precision.
Description
Technical field
The utility model is related to machine tool technology field, particularly to a kind of tailstock and Digit Control Machine Tool.
Background technology
It is currently used for the tailstock of support screw, generally internal setting a pair of bearings, contact spacing with tailstock by bearing
Screw mandrel.But such scheme, usually can cause gap between a pair of bearings to be difficult to eliminate, thus causing the mobile accuracy of screw mandrel
The problem of difference；And because screw mandrel is that bearing is installed in direct compressing, thus causing to substantially reduce the phenomenon of the service life of bearing.
Utility model content
Main purpose of the present utility model is to provide a kind of tailstock and Digit Control Machine Tool it is intended to improve the service life of bearing,
Improve precision.
For achieving the above object, the utility model proposes tailstock, for the assembling of the afterbody of screw mandrel, the tail of described screw mandrel
Portion includes fore shaft section, supporting section and the raised section setting gradually on from its tail end to the direction of head end；Described tailstock includes：
Pedestal, is provided with the bearing saddle bore of an insertion, 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 limiting
The circumference of described screw mandrel is mobile；
Elastic component, is installed in described bearing saddle bore, and is located at the inner face side of described bearing group, supports for elasticity
Between the inner face of described bearing group and the projection section of described screw mandrel；
Locking member, is installed in described bearing saddle bore, and be located at described bearing group outer face side, for described silk
The fore shaft section of bar is fixed and is supported with the outer face of described bearing group.
Preferably, described elastic component is disc spring.
Preferably, described locking member is self-locking nut, and the threads for setting in the fore shaft section with described screw mandrel connect
Connect.
Preferably, described bearing group includes two angular contact bearing bearings, two described angular contact bearing arranged in series, and
Face the head end of screw mandrel.
Preferably, described elastic component and locking member are all supported with the inner ring of described bearing.
Preferably, also include bearing gland, described bearing gland is fixedly connected with described pedestal, and be resisted against described bearing
The inner face of group.
Preferably, described bearing gland and the outer ring of described bearing are supported.
Preferably, described bearing gland is annular in shape, and with passing through for described screw mandrel, described bearing gland is included around described
The gland body of bearing saddle bore, and be convexly equipped on described gland body and insert a circle of described bearing saddle bore and support muscle；Institute
State gland body to fix by multiple bolt connections with described pedestal, described muscle of supporting stretches into along the hole wall of described bearing saddle bore
And support the outer ring of described bearing.
The Digit Control Machine Tool that the utility model provides, including support, motor, screw mandrel and tailstock；Described motor and tailstock and institute
State support to be fixedly connected；Described screw mandrel includes head end and tail end, described head end and described motor connection, described tail end and described tail
Seat connects, fore shaft section that the afterbody of described screw mandrel includes setting gradually on from from its tail end to the direction of head end, supporting section and raised
Section；Described tailstock adopts above-mentioned tailstock.
Preferably, described tailstock passes through pin and described support positioning, and is fixedly connected with described support by bolt.
Tailstock provided by the utility model and Digit Control Machine Tool, after mounting, due to the effect of the elastic force of elastic component
Under, the both sides end face of two bearings is extruded by elastic component and locking member respectively, therefore can effectively eliminate between two bearings
Gap, it is to avoid loosen and affect the kinematic accuracy of screw mandrel.And, due to being connected by elastic component between bearing and screw mandrel, then
Buffering can be played and improve the effect of the service life of bearing.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the utility model Digit Control Machine Tool one embodiment；
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 utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of the utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining the relative position relation between each part, motion conditions etc. under a certain particular pose (as shown in drawings), such as
When really this particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, the description being related to " first ", " second " etc. in the utility model is only used for describing purpose, and it is not understood that
For indicating or implying its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can be expressed or implicitly include at least one this feature.In addition, the technical side between each embodiment
Case can be combined with each other, but must be capable of by those of ordinary skill in the art based on, when the combination of technical scheme
Will be understood that the combination of this technical scheme does not exist when appearance is conflicting or cannot realize, also do not require in the utility model
Protection domain within.
The utility model proposes a kind of tailstock and a kind of Digit Control Machine Tool, in order to be illustrated more clearly that the skill of described tailstock
Art feature and its technique effect of being brought, taking employ the Digit Control Machine Tool of above-mentioned tailstock as a example come specifically in the present embodiment
Bright.
Fig. 1 to Fig. 4 shows an embodiment of the utility model Digit Control Machine Tool.
Refer to Fig. 1, a kind of Digit Control Machine Tool that the utility model provides, including support 300, motor 400, screw mandrel 200 and
Tailstock 100.Described motor 400 is fixedly connected with described support 300 with tailstock 100；Described screw mandrel 200 includes head end and tail end
240, described head end is connected with described motor 400, and described tail end 240 is connected with described tailstock 100.Wherein, motor 400 is servo
Motor, screw mandrel 200 passes through being rotated and then driving the work top being arranged on screw mandrel to move of servomotor 400.
Incorporated by reference to referring to Fig. 2, the afterbody of described screw mandrel 200 includes setting gradually on from its tail end 240 to the direction of head end
Fore shaft section 210, supporting section 220 and projection section 230.Wherein, in the present embodiment, the afterbody of screw mandrel 200 is in that ladder is shaft-like, projection
Section 230 is formed at major diameter bar segment, and 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.Incorporated by reference to referring to Fig. 3 and
Fig. 4, wherein：
Described pedestal 110, is provided with the bearing saddle bore 111 of an insertion, houses the afterbody of described screw mandrel 200.Generally bearing block
The through hole that hole 111 is provided in round.
Described bearing group 120, press-fits in described bearing saddle bore 111, and is sheathed on the supporting section of described screw mandrel 200
On 220, thus the circumference limiting described screw mandrel 200 is mobile.Wherein, described bearing group 120 includes two bearings being coaxially disposed
121.Bearing can be installed by pressure or be installed on by way of heating installation in bearing saddle bore 111.The present embodiment is with two
To describe in detail as a example bearing 121, but not limit and be only capable of, using two bearings 121, in other embodiments, can also be 3
Individual or 4 etc..
Described elastic component 130, is installed in described bearing saddle bore 111, and is located at the inner face 122 of described bearing group 120
Side, elasticity is resisted against between inner face 122 and the projection section 230 of described screw mandrel 200 of described bearing group 120.
Described locking member 140, is installed in described bearing saddle bore 111, and is located at the outer face 123 of described bearing group 120
Side, is fixed with the fore shaft section 210 of described screw mandrel 200 and is supported with the outer face 123 of described bearing group 120.Wherein, locking member
Between 140 and fore shaft section 210 can be spirally connected, the mode such as clamping or riveting is fixed.
The Digit Control Machine Tool that the present embodiment is provided, after mounting, in the presence of the elastic force of elastic component 130, two
The both sides end face of bearing 121 is subject to extruding of elastic component 130 and locking member 140 respectively, therefore can effectively eliminate two bearings 121 it
Between gap, it is to avoid loosen and affect the kinematic accuracy of screw mandrel 200.And, due to passing through bullet between bearing 121 and screw mandrel 200
Property part 130 and connect, then can play buffering and improve the effect of the service life of bearing 121.
In the present embodiment, described tailstock 100 is positioned with described support 300 by pin 163, and passes through bolt 162 and institute
State support 300 to be fixedly connected.By using pin 163, workman can be easy to and align in advance, and precise control tailstock 100
Position, reaches the effect improving quality of fit.
Preferably, described elastic component 130 is disc spring, and because disc spring rigidity is big, buffering vibration absorption ability is strong, can be held with small deformation
By big load, it is thus suitable for the little occasion of axial space requirement.Certainly in other embodiments, can also be using compression bullet
The elastic components such as spring, block rubber.
Preferably, described locking member 140 is self-locking nut, for the spiral shell with setting in the fore shaft section 210 of described screw mandrel 200
Line is screwed together.On the one hand, after being screwed tight due to self-locking nut, by the elastic force of elastic component 130, then can be with fore shaft section 210
On screw thread locked, then can realize stronger locking effect such that it is able to avoid self-locking nut stress less and loosening, another
Side, can by self-locking nut in rotary moving adjusting the decrement to elastic component 130, thus having the effect being conveniently adjusted.
Preferably, described bearing 121 is angular contact bearing.Angular contact ball bearing can bear radial load simultaneously and axially bear
Lotus, and can work at higher rotational speeds, therefore it is applied to the present embodiment.And in the present embodiment, using two bearings 121
Axial load that can be bigger.The bearing 121 of the present embodiment uses arranged in series, and it faces the head end of screw mandrel 200.Its
In, the thick end of the outer ring of bearing 121 is the back of the body, and thin end is face.
Preferably, described elastic component 130 and locking member 140 are all supported with the inner ring 124 of described bearing 121.
Preferably, described tailstock 100 also includes bearing gland 150, and described bearing gland 150 is fixing with described pedestal 110
Connect, and be resisted against the inner face 122 of described bearing group 120.By arranging bearing gland 150, then can keep out bearing 121 court
Move to the head end direction of screw mandrel 200, it is to avoid described bearing 121 loosens.Preferably, described bearing gland 150 and described bearing
121 outer ring 125 is supported.
Preferably, described bearing gland 150 is annular in shape, and with passing through for described screw mandrel 200, described bearing gland 150 wraps
Include the gland body 151 around described bearing saddle bore 111, and be convexly equipped on described gland body 151 and insert described bearing
Muscle 152 supported by one circle of bore 111.Described gland body 151 is connected by multiple bolts 161 with described pedestal 110, institute
State and support muscle 152 and stretch into and support the outer ring 125 of described bearing 121 along the hole wall of described bearing saddle bore 111.In other enforcements
Example in, bearing gland 150 can also be abutted with the outer ring 125 of described bearing 121 using other modes, such as interval multiple convex
Post.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure under utility model of the present utility model is conceived, made using the utility model specification and accompanying drawing content
Conversion, or directly/be indirectly used in other related technical fields and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of tailstock, for the afterbody assembling with screw mandrel, the afterbody of described screw mandrel is included on from its tail end to the direction of head end
Fore shaft section, supporting section and the projection section setting gradually；It is characterized in that, described tailstock includes：
Pedestal, is provided with the bearing saddle bore of an insertion, 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 limiting described
The circumference of screw mandrel is mobile；
Elastic component, is installed in described bearing saddle bore, and is located at the inner face side of described bearing group, is resisted against institute for elasticity
State between the inner face of bearing group and the projection section of described screw mandrel；
Locking member, is installed in described bearing saddle bore, and be located at described bearing group outer face side, for described screw mandrel
Fore shaft section is fixed and is supported with the outer face of described bearing group.
2. tailstock as claimed in claim 1 is 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 be self-locking nut, for described screw mandrel
In fore shaft section, the threads of setting connect.
4. tailstock as claimed in claim 3 is it is characterised in that described bearing group includes two angular contact bearing bearings, two
Described angular contact bearing arranged in series, and face the head end of screw mandrel.
5. tailstock as claimed in claim 4 is it is characterised in that described elastic component and locking member are all supported with the inner ring of described bearing
Top.
6. the tailstock as described in any one of claim 1 to 5 is it is characterised in that also include bearing gland, described bearing gland with
Described pedestal is fixedly connected, and is resisted against the inner face of described bearing group.
7. tailstock as claimed in claim 6 is it is characterised in that the outer ring of described bearing gland and described bearing is supported.
8. tailstock as claimed in claim 7 is it is characterised in that described bearing gland is annular in shape, with passing through for described screw mandrel,
Described bearing gland includes the gland body around described bearing saddle bore, and is convexly equipped on described gland body and inserts described
Muscle supported by one circle of bearing saddle bore；Described gland body and described pedestal are fixed by multiple bolt connections, described support muscle edge
The hole wall described bearing saddle bore stretches into and supports the outer ring of described bearing.
9. a kind of Digit Control Machine Tool, including support, motor, screw mandrel and tailstock；Described motor is fixedly connected with described support with tailstock；
Described screw mandrel includes head end and tail end, described head end and described motor connection, and described tail end is connected with described tailstock, and its feature exists
In the afterbody of described screw mandrel includes the fore shaft section from its tail end to the direction of head end, supporting section and the raised section that set gradually on from；Institute
State the tailstock that tailstock is described in any one of claim 1 to 8.
10. Digit Control Machine Tool as claimed in claim 9 is it is characterised in that described tailstock passes through pin and described support positioning, and
It is fixedly connected with described support by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814905.7U CN205927140U (en) | 2016-07-28 | 2016-07-28 | Tailstock and digit control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814905.7U CN205927140U (en) | 2016-07-28 | 2016-07-28 | Tailstock and digit control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205927140U true CN205927140U (en) | 2017-02-08 |
Family
ID=57923866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620814905.7U Expired - Fee Related CN205927140U (en) | 2016-07-28 | 2016-07-28 | Tailstock and digit control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205927140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001636A (en) * | 2016-07-28 | 2016-10-12 | 深圳市创世纪机械有限公司 | Tailstock and numerical control machine tool |
-
2016
- 2016-07-28 CN CN201620814905.7U patent/CN205927140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001636A (en) * | 2016-07-28 | 2016-10-12 | 深圳市创世纪机械有限公司 | Tailstock and numerical control machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |