CN205201159U - Lathe ball screw device - Google Patents
Lathe ball screw device Download PDFInfo
- Publication number
- CN205201159U CN205201159U CN201520826859.8U CN201520826859U CN205201159U CN 205201159 U CN205201159 U CN 205201159U CN 201520826859 U CN201520826859 U CN 201520826859U CN 205201159 U CN205201159 U CN 205201159U
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- CN
- China
- Prior art keywords
- ball
- screw
- nut
- fixed
- knife rest
- 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.)
- Expired - Fee Related
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Abstract
The application discloses lathe ball screw device, including ball guide screw nut, front axle bearing, rear axle bearing, knife rest and motor, ball guide screw nut includes matched with ball and nut, the nut is fixed with the knife rest, ball's both ends are rotated respectively and are connected in front axle bearing and rear axle bearing, the motor is connected in ball and can be driven the ball rotation, be equipped with the fixed block between knife rest and the ball, ball's the outside is located to the fixed block cover, be formed with clearance space between fixed block and the ball, the nut is fixed in in this clearance space, clearance space's both ends are fixed through the clamp plate respectively. The utility model discloses a vertical feeding device of lathe cutter is small, compact structure, transmission precision high, easy maintenance.
Description
Technical field
The application belongs to machine tooling technical field, more particularly to a kind of machine tool ball screw device.
Background technology
At present, longitudinal ball-screw of numerical-control horizontal lathe longitudinal feeding device is to pass through synchronous belt drive by servomotor, it has the disadvantage that gearratio is small, and the required rating of electric machine is big, high cost, structure is not compact enough, simultaneously because toothed belt transmission has certain elastic deformation, transmission accuracy can be directly affected, and labor intensity is big when assembling, maintenance is inconvenient, and service life is short.
Utility model content
The purpose of this utility model is to provide a kind of machine tool ball screw device, to overcome deficiency of the prior art.
To achieve the above object, the utility model provides following technical scheme：
The embodiment of the present application discloses a kind of machine tool ball screw device, including ball guide screw nat, front-end bearing pedestal, rear bearing block, knife rest and motor, the ball guide screw nat includes the ball-screw and nut being engaged, the nut is fixed with knife rest, the two ends of the ball-screw are rotationally connected with front-end bearing pedestal and rear bearing block respectively, the motor connection is in ball-screw and can drive ball screw turns, fixed block is provided between the knife rest and ball-screw, the fixed block is sheathed on the outside of ball-screw, clearance space is formed between the fixed block and ball-screw, the nut is fixed in the clearance space, the two ends of the clearance space are fixed by pressing plate respectively.
It is preferred that, in above-mentioned machine tool ball screw device, the nut includes the first nut and the second nut being set up in parallel.
It is preferred that, in above-mentioned machine tool ball screw device, the pressing plate is removably fixed in the side of fixed block by nut.
Compared with prior art, the utility model has the advantage of：It is machine tool longitudinal feeding device small volume of the present utility model, compact conformation, high transmission accuracy, easy to maintenance.
Brief description of the drawings
In order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art, the accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments described in the application, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the structural representation of machine tool longitudinal feeding device in the utility model specific embodiment；
Fig. 2 show the structural representation of front-end bearing pedestal in the utility model specific embodiment；
Fig. 3 show the structural representation of ball guide screw nat in the utility model specific embodiment；
Fig. 4 show the structural representation of rear bearing block in the utility model specific embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is described in detail, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made belongs to the scope of the utility model protection.
Join shown in Fig. 1, machine tool longitudinal feeding device, including ball guide screw nat 1, front-end bearing pedestal 2, rear bearing block 3, knife rest 4 and motor 5, ball guide screw nat 1 includes the ball-screw 101 and nut 102 being engaged, wherein nut 102 is fixed with knife rest 4, and the two ends of ball-screw 101 are rotationally connected with front-end bearing pedestal 2 and rear bearing block 3 respectively.Motor 5 is connected to ball-screw 101 and ball-screw 101 can be driven to rotate.
With reference to shown in Fig. 2, front-end bearing pedestal 2 includes casing 201, and one end that ball-screw 101 is extended in casing is fixed with first gear 102.The driven shaft 202 being set up in parallel with ball-screw 101 is provided with casing 201, the two ends of driven shaft 202 are rotationally connected with two relative side walls of casing 201 respectively, the outside of driven shaft 202, which is arranged, is fixed with axle sleeve 203, engaged with first gear 102 one end of axle sleeve 203, the other end, which is arranged, is fixed with second gear 204, motor 5 is fixed on the outside of casing 201, and its output shaft 501 is extended in casing 201 and is fixed with the 3rd gear 502, and the 3rd gear 502 is engaged with second gear 204.
An at least alignment pin 205 is fixed between axle sleeve 203 and driven shaft 202.
Further, mounting hole correspondingly is offered on axle sleeve 203 and driven shaft 202, alignment pin 205 is arranged in the mounting hole.
Further, alignment pin 205 passes through driven shaft 202, and the axle sleeve 203 at its two ends and the both sides of driven shaft 202 is fixed respectively.
Further, alignment pin 205 is bullet.
Further, alignment pin 205 is provided with 2 along the axially spaced-apart of driven shaft 202.
The side of casing 201 is formed with mounting hole 206, the tip edge of mounting hole 206 is inwardly horizontal-extending upper retaining wall 207, the mounting hole 206 is removably fixed with bearing mounting base 208, bearing mounting base 208 is L-shaped, the linking arm 210 extended vertically upwards including lower retaining wall 209 and from the lower outer end of retaining wall 209, is detachably fixed between linking arm 210 and casing 201.A bearing installation cavity 211 is surrounded between bearing mounting base 208 and upper retaining wall 207, ball-screw 101, which is arranged between the bearing installation cavity 211, and ball-screw 101 and bearing installation cavity 211, is provided with bearing assembly 212.
Further, bearing assembly 212 includes being respectively equipped with back-up ring 217 between the first deep groove ball bearing 213, the second deep groove ball bearing 214, the first thrust bearing 215 and the second thrust bearing 216 set gradually vertically, adjacent bearing.
Further, the lubrication hole 218 for being communicated in bearing installation cavity 211 is offered on bearing mounting base 208.
Further, the outer surface of lower retaining wall 209 is formed with forms spacing stage portion 219 with the bottom edge of mounting hole 206.
Further, first gear 102 is fixed on the end of ball-screw 101 by locking nut 220 and elastic circlip 221.
With reference to shown in Fig. 3, fixed block 103 is provided between knife rest 4 and ball-screw 101, fixed block 103 is sheathed on the outside of ball-screw 101, clearance space 104 is formed between fixed block 103 and ball-screw 101, nut 102 is fixed in the clearance space 104, and the two ends of clearance space 104 are fixed by pressing plate 105 respectively.
Further, nut 102 includes the first nut 106 and the second nut 107 being set up in parallel.
Further, pressing plate 105 is removably fixed in the side of fixed block by nut.
With reference to shown in Fig. 4, rear bearing block 3 has a bearing installation cavity 301, bearing 302 is provided between ball-screw 101 and bearing installation cavity 301, rear bearing block 3 is respectively arranged at two ends with the first end cap 303 and the second end cap 304, first end cap 303 is close to the one end of ball guide screw nat 1, positioning baffle 305 is provided between first end cap 303 and rear bearing block 3, first end cap 303 is formed with a cavity 306 towards the side of rear bearing block 3 is recessed, provided with the deep groove ball bearing 307 being sheathed on the outside of ball-screw in the cavity 306, the both sides of positioning baffle 305 protrude out the first limiting section 308 and the second limiting section 309 of circle respectively, first limiting section 308 is convexedly stretched in cavity 306, second limiting section 309 is convexedly stretched in bearing installation cavity 301.
Further, it is formed with sealing ring 310 between the first end cap 303 and ball-screw.
Further, back-up ring 311 is provided between the bearing provided with 3 axially spaced settings between ball-screw 101 and bearing installation cavity 301, adjacent bearing.
Further, rear bearing block 3 has a L-shaped stage portion 312, and the second endcap support is in stage portion 312.
Further, ball screw extends one end of the bearing installation cavity and is fixed with encoder 314 by locking nut 313.
It should be noted that, herein, such as first and second or the like relational terms are used merely to make a distinction an entity or operation with another entity or operation, and not necessarily require or imply between these entities or operation there is any this actual relation or order.And, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that process, method, article or equipment including a series of key elements not only include those key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or the intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that also there is other identical element in the process including the key element, method, article or equipment.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, on the premise of the application principle is not departed from; some improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection domain of the application.
Claims (3)
1. a kind of machine tool ball screw device, it is characterized in that, including ball guide screw nat, front-end bearing pedestal, rear bearing block, knife rest and motor, the ball guide screw nat includes the ball-screw and nut being engaged, the nut is fixed with knife rest, the two ends of the ball-screw are rotationally connected with front-end bearing pedestal and rear bearing block respectively, the motor connection is in ball-screw and can drive ball screw turns, fixed block is provided between the knife rest and ball-screw, the fixed block is sheathed on the outside of ball-screw, clearance space is formed between the fixed block and ball-screw, the nut is fixed in the clearance space, the two ends of the clearance space are fixed by pressing plate respectively.
2. machine tool ball screw device according to claim 1, it is characterised in that：The nut includes the first nut and the second nut being set up in parallel.
3. machine tool ball screw device according to claim 1, it is characterised in that：The pressing plate is removably fixed in the side of fixed block by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520826859.8U CN205201159U (en) | 2015-10-22 | 2015-10-22 | Lathe ball screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520826859.8U CN205201159U (en) | 2015-10-22 | 2015-10-22 | Lathe ball screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205201159U true CN205201159U (en) | 2016-05-04 |
Family
ID=55838900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520826859.8U Expired - Fee Related CN205201159U (en) | 2015-10-22 | 2015-10-22 | Lathe ball screw device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205201159U (en) |
-
2015
- 2015-10-22 CN CN201520826859.8U patent/CN205201159U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Haihao Inventor before: Wang Ming |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170421 Address after: 528200 Guangdong Province Nanhai District of Foshan city streets Guicheng Pingzhou Pingxi Julong revitalization Development Zone No. 7 Patentee after: Nanhai District of Foshan City, Pml Precision Mechanism Ltd Address before: 215625, Jiangsu, Suzhou, Jiangsu, Yangtze River, the Yangtze River International Metallurgical Industrial Park, Fairview Road, No. 3, Suzhou Tian Yi metal materials Co., Ltd., Patentee before: SUZHOU TIANRUN METAL MATERIAL CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20181022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |