CN204338887U - A kind of spindle structure of numerical-control machine tool of improvement - Google Patents
A kind of spindle structure of numerical-control machine tool of improvement Download PDFInfo
- Publication number
- CN204338887U CN204338887U CN201420829593.8U CN201420829593U CN204338887U CN 204338887 U CN204338887 U CN 204338887U CN 201420829593 U CN201420829593 U CN 201420829593U CN 204338887 U CN204338887 U CN 204338887U
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- CN
- China
- Prior art keywords
- ball bearing
- angular contact
- contact ball
- main shaft
- nut
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of spindle structure of numerical-control machine tool of improvement, it relates to numerical control machine tool technique field.It comprises main shaft, ring flange, the first angular contact ball bearing, the first adjusting pad, the first nut, the second angular contact ball bearing, the second adjusting pad and the second nut, main shaft is provided with the first angular contact ball bearing and the second angular contact ball bearing, the arranged outside of the first angular contact ball bearing has ring flange, inside first angular contact ball bearing, the first adjusting pad is provided with the first nut, outside the second angular contact ball bearing, the second adjusting pad is provided with the second nut.The utility model is under the prerequisite that Assembly part is all qualified, and once after assembling, every precision of main shaft can meet the demands, unlike also needing repeatedly to adjust with amesdial in the past.Owing to improve the assembly precision of main shaft, thus main shaft temperature rise reduces, and general Absorbable organic halogens is within 20 DEG C, and this improvement substantially prolongs the service life of machine tool chief axis.
Description
Technical field
The utility model relates to numerical control machine tool technique field, be specifically related to a kind of spindle structure of numerical-control machine tool of improvement.
Background technology
In Digit Control Machine Tool, main shaft is the parts of most critical, plays vital effect to lathe, and the design of main axle structure is first it is considered that its function that need realize, and the manufacturability of processing and assembling certainly is also the factor considered.The structure that current Machine Spindle Design generally adopts: main shaft supporting is on bearing, and the axial location of bearing is realized by the tight split nut of the briquetting of three on main shaft.The precision of axis system depends on the assembly quality of the machining accuracy of main shaft and correlated parts, the accuracy class of bearing and main shaft.The quality that the internal taper hole of main shaft double-row conical bearing coordinates with main shaft 1:12 outer cone will directly affect the operating accuracy of main shaft, its cooperation contact area of General Requirements is greater than 75%, in order to reach this requirement, except noting brand and grade when buying bearing, usually higher to the requirement of main shaft when designing, the axiality at two ends is 0.005mm, to its correlated parts, the beat requirement of end face to main-shaft axis as nut and spacer is also higher, and its jitter values General Requirements is within 0.008mm.Be difficult to ensure so high precision to the processing of general briquetting nut, thus often occurring that main shaft precision is overproof when assembling, finally having to repeatedly to adjust the degree of tightness of round nut, and reaching requirement reluctantly, but such result often bearing is tight slightly, precision stability is poor, installation site inaccuracy, and play is uneven, when causing work, temperature rise is higher, noise is large, and vibrations are severe, affect the crudy of workpiece and the life-span of bearing.But large with its bearing load of taper roll bearing for heavy digital control machine tool, smooth running, when precision is adjusted, it is better to the precision stability of lathe, can for light-duty and high-speed machine tool is just very not favourable.
Utility model content
For the deficiency that prior art exists, the utility model object is the spindle structure of numerical-control machine tool being to provide a kind of improvement, improves the assembly precision of main shaft, considerably increases the service life of main shaft.
To achieve these goals, the utility model realizes by the following technical solutions: a kind of spindle structure of numerical-control machine tool of improvement, comprise main shaft, ring flange, first angular contact ball bearing, first adjusting pad, first nut, second angular contact ball bearing, second adjusting pad and the second nut, main shaft is provided with the first angular contact ball bearing and the second angular contact ball bearing, the arranged outside of the first angular contact ball bearing has ring flange, inside first angular contact ball bearing, the first adjusting pad is provided with the first nut, outside second angular contact ball bearing, the second adjusting pad is provided with the second nut.
The first described nut is round nut.
The utility model changes traditional double-row conical bearing into corner-kick bearing touch, improves processing technology and the assembly technology of main shaft.This main shaft eliminates the tapered segment at two ends, and processing is just easy to, and ensures the axiality of rear and front end, also can suitably reduce simultaneously to the processing request of briquetting locking nut.
Main axle structure of the present utility model, under the prerequisite that Assembly part is all qualified, once after assembling, every precision of main shaft can meet the demands, unlike also needing repeatedly to adjust with amesdial in the past.Owing to improve the assembly precision of main shaft, thus main shaft temperature rise reduces, and general Absorbable organic halogens is within 20 DEG C, and this improvement substantially prolongs the service life of machine tool chief axis.
Accompanying drawing explanation
The utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the utility model further.
With reference to Fig. 1, this detailed description of the invention is by the following technical solutions: a kind of spindle structure of numerical-control machine tool of improvement, comprise main shaft 1, ring flange 2, first angular contact ball bearing 3, first adjusting pad 4, first nut 5, second angular contact ball bearing 6, second adjusting pad 7 and the second nut 8, main shaft 1 is provided with the first angular contact ball bearing 3 and the second angular contact ball bearing 6, the arranged outside of the first angular contact ball bearing 3 has ring flange 2, inside first angular contact ball bearing 3, first adjusting pad 4 is provided with the first nut 5, outside second angular contact ball bearing 6, second adjusting pad 7 is provided with the second nut 8.
It should be noted that the first described nut 5 is round nut.
Spindle mounted technique after the improvement of this detailed description of the invention is:
1, after bearing heating being coiled in front end four, successively bearing and spacer are put into main shaft, tighten locking nut;
2, put in main spindle box by main shaft, end cap is upper jack panel after preparing height;
3, directly fill two dish bearings of rear end, finally tighten the nut of rear and front end.
This detailed description of the invention has dynamic rigidity and precision preferably, and add man-hour can not affect bearing cooperation because of the running of excess load, thus precision stability is better.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. the spindle structure of numerical-control machine tool improved, it is characterized in that, comprise main shaft (1), ring flange (2), first angular contact ball bearing (3), first adjusting pad (4), first nut (5), second angular contact ball bearing (6), second adjusting pad (7) and the second nut (8), main shaft (1) is provided with the first angular contact ball bearing (3) and the second angular contact ball bearing (6), the arranged outside of the first angular contact ball bearing (3) has ring flange (2), first angular contact ball bearing (3) inner side is provided with the first nut (5) by the first adjusting pad (4), second angular contact ball bearing (6) outside is provided with the second nut (8) by the second adjusting pad (7).
2. the spindle structure of numerical-control machine tool of a kind of improvement according to claim 1, is characterized in that, described the first nut (5) is round nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829593.8U CN204338887U (en) | 2014-12-23 | 2014-12-23 | A kind of spindle structure of numerical-control machine tool of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829593.8U CN204338887U (en) | 2014-12-23 | 2014-12-23 | A kind of spindle structure of numerical-control machine tool of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338887U true CN204338887U (en) | 2015-05-20 |
Family
ID=53222189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420829593.8U Expired - Fee Related CN204338887U (en) | 2014-12-23 | 2014-12-23 | A kind of spindle structure of numerical-control machine tool of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204338887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942313A (en) * | 2015-06-30 | 2015-09-30 | 江苏元利数控机床有限公司 | Mechanism for main shaft high-speed operation and assembling method and using method thereof |
| CN106312678A (en) * | 2015-06-29 | 2017-01-11 | 颜声林 | Numerical control lathe |
-
2014
- 2014-12-23 CN CN201420829593.8U patent/CN204338887U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312678A (en) * | 2015-06-29 | 2017-01-11 | 颜声林 | Numerical control lathe |
| CN104942313A (en) * | 2015-06-30 | 2015-09-30 | 江苏元利数控机床有限公司 | Mechanism for main shaft high-speed operation and assembling method and using method thereof |
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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: 20150520 Termination date: 20151223 |
|
| EXPY | Termination of patent right or utility model |