CN204449344U - A kind of machine tool chief axis locking device - Google Patents
A kind of machine tool chief axis locking device Download PDFInfo
- Publication number
- CN204449344U CN204449344U CN201520052073.5U CN201520052073U CN204449344U CN 204449344 U CN204449344 U CN 204449344U CN 201520052073 U CN201520052073 U CN 201520052073U CN 204449344 U CN204449344 U CN 204449344U
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- CN
- China
- Prior art keywords
- main shaft
- spindle box
- machine tool
- locking device
- main spindle
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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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of machine tool chief axis locking device, belongs to field of mechanical technique.It solve the locking of existing machine tool chief axis locking device unstable, the problems such as service life is short.In this lathe apparatus for locking main shaft, this lathe comprises main spindle box and is arranged in the main shaft in main spindle box, bearing block is provided with between main spindle box and main shaft, several bearings are provided with between bearing block and main shaft, main shaft shell is provided with between bearing block and main spindle box, the end of main shaft stretches out that main spindle box is outer and the part that main shaft stretches out outside main spindle box is provided with end cap, sleeve is provided with and sleeve is positioned on bearing block periphery wall between end cap and main spindle box, the end of main shaft has the flange part of outwardly convex, this machine tool chief axis locking device comprises the fluted disc that flange part is fixed with, the fastening teeth post that several synchronously move radially is provided with in sleeve, fastening teeth post have the teeth that can be meshed with the gear teeth on fluted disc.It is stable that the utility model has locking, the advantages such as long service life.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of lathe, particularly a kind of machine tool chief axis locking device.
Background technology
Add man-hour when lathe needs to carry out calibration, must by main shaft gyration to a certain position time, locking main shaft makes it no longer turn round, or rotates very little angle in the longer time period.In machine tooling, principal shaft locking technology is one of important step of processing, its stability and reliability directly affect machining accuracy and the overall performance of lathe, and therefore principal shaft locking technology is one of critical elements will considered in whole grinding machine structure design process.
That relatively commonly uses both at home and abroad at present has several lock mode: 1, tangential clamp system; 2, radial compaction mechanism; 3, turbine and worm anti-backlash mechanism; 4, electric-machine directly-driven etc.Tangential clamp system is applicable to the less situation of shaft diameter, such as the clamping of tailstock centre axle; Hydraulic radial clamp system is the thin-walled parts generation Light deformation utilized in hydraulic means, holds main shaft tightly, high to the technological requirement of thin-walled parts, the phenomenon cannot unclamped after easily causing clamping, and difficulty realizes half-clutch duty and shuts down self-locking; Have the mechanism using twin worm in turbine and worm anti-backlash mechanism, cost is higher comparatively speaking, and adjustment relative difficulty, also has and use double pitch worm anti-backlash mechanism, but wearing and tearing are very fast, and service life is shorter, and corresponding loss of significance is also fast; When electric-machine directly-driven realizes, the power of motor of requirement is comparatively large, and caloric value is large, and cost is also relatively high.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of locking stable, the machine tool chief axis locking device of long service life.
The purpose of this utility model realizes by following technical proposal: a kind of machine tool chief axis locking device, this lathe comprises main spindle box and is arranged in the main shaft in main spindle box, bearing block is provided with between described main spindle box and main shaft, several bearings are provided with between described bearing block and main shaft, main shaft shell is provided with between described bearing block and main spindle box, the end of described main shaft stretches out that main spindle box is outer and the part that main shaft stretches out outside main spindle box is provided with end cap, it is characterized in that, sleeve is provided with and sleeve is positioned on bearing block periphery wall between described end cap and main spindle box, the end of described main shaft has the flange part of outwardly convex, this machine tool chief axis locking device comprises the fluted disc that described flange part is fixed with, the fastening teeth post that several synchronously move radially is provided with in described sleeve, described fastening teeth post have the teeth that can be meshed with the gear teeth on fluted disc, moving radially by hydraulic control of described fastening teeth post.
This lathe apparatus for locking main shaft, when lathe needs to carry out calibration processing or power and energy, main shaft gyration stops operating to a certain position.Now, the synchronous footpath under the control of hydraulic jack of the fastening teeth post in locking device is yearned for fluted disc direction and is moved and the gear teeth meshing on fluted disc, thus the main shaft of locking lathe, prevent the slip of main shaft; When lathe is started working, the synchronous footpath yearning under the control of hydraulic jack of the fastening teeth post in locking device is separated with the gear teeth on fluted disc away from fluted disc is mobile in the other direction, thus makes lathe work well.Not only complex structure work is simple in the setting of this structure, and locks stability and greatly promote service life.
In above-mentioned a kind of machine tool chief axis locking device, described fastening teeth post comprises oil-in and oil-out, and described oil-in is connected respectively at oil cylinder with oil-out.
In above-mentioned a kind of machine tool chief axis locking device, described fastening teeth post is distributed in the upper and lower of fluted disc uniformly and number is respectively 3.
In above-mentioned a kind of machine tool chief axis locking device, the described fastening teeth post being positioned at fluted disc top is symmetrically set with the fastening teeth post being positioned at fluted disc bottom, and described angle between each fastening teeth post of fluted disc top or bottom is between 20 ° to 30 °.
In above-mentioned a kind of machine tool chief axis locking device, the end of described main shaft is provided with handle of a knife, and the end of described handle of a knife to embed in main shaft and is provided with mechanical seal between the end of handle of a knife and main shaft inside.
Compared with prior art, the locking of this lathe apparatus for locking main shaft is more stable, longer service life.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this lathe apparatus for locking main shaft.
Fig. 2 is the structural representation at fluted disc and fastening teeth post place in this lathe apparatus for locking main shaft.
In figure, 1, main spindle box; 2, main shaft; 3, bearing block; 4, bearing; 5, main shaft shell; 6, end cap; 7, sleeve; 8, flange part; 9, fluted disc; 9a, the gear teeth; 10, fastening teeth post; 10a, teeth; 11, oil-in; 12, oil-out; 13, handle of a knife; 14, mechanical seal.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 or 2, this lathe apparatus for locking main shaft, the main shaft 2 that this lathe comprises main spindle box 1 and is arranged in main spindle box 1, bearing block 3 is provided with between main spindle box 1 and main shaft 2, several bearings 4 are provided with between bearing block 3 and main shaft 2, main shaft shell 5 is provided with between bearing block 3 and main spindle box 1, the end of main shaft 2 stretches out that main spindle box 1 is outer and main shaft 2 part of stretching out outside main spindle box 1 is provided with end cap 6, sleeve 7 is provided with and sleeve 7 is positioned on bearing block 3 periphery wall between end cap 6 and main spindle box 1, the end of main shaft 2 has the flange part 8 of outwardly convex, this machine tool chief axis locking device comprises the fluted disc 9 that flange part 8 is fixed with, the fastening teeth post 10 that several synchronously move radially is provided with in sleeve 7, fastening teeth post 10 has the teeth 10a that can be meshed with the gear teeth 9a on fluted disc 9, fastening teeth post 10 move radially by hydraulic control, fastening teeth post 10 comprises oil-in 11 and oil-out 12, oil-in 11 is connected respectively at oil cylinder with oil-out 12.
In order to the structure of this lathe apparatus for locking main shaft is more reasonable, its fastening teeth post 10 is distributed in the upper and lower of fluted disc 9 uniformly and number is respectively 3, the fastening teeth post 10 being positioned at fluted disc 9 top is symmetrically set with the fastening teeth post 10 being positioned at fluted disc 9 bottom, angle between each fastening teeth post 10 of fluted disc 9 top or bottom is between 20 ° to 30 °, the end of main shaft 2 is provided with handle of a knife 13, and the end of handle of a knife 13 to embed in main shaft 2 and is provided with mechanical seal 14 between the end of handle of a knife 13 and main shaft 2 inside.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as main spindle box 1, main shaft 2, bearing block 3, bearing 4, main shaft shell 5, end cap 6, sleeve 7, flange part 8, fluted disc 9, gear teeth 9a, fastening teeth post 10, teeth 10a, oil-in 11, oil-out 12, handle of a knife 13, mechanical seal 14 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (5)
1. a machine tool chief axis locking device, this lathe comprises main spindle box (1) and is arranged in the main shaft (2) in main spindle box (1), bearing block (3) is provided with between described main spindle box (1) and main shaft (2), several bearings (4) are provided with between described bearing block (3) and main shaft (2), main shaft shell (4) is provided with between described bearing block (3) and main spindle box (1), main spindle box (1) is stretched out and main shaft (2) stretches out main spindle box (1) part is outward provided with end cap (6) outward in the end of described main shaft (2), it is characterized in that, sleeve (7) is provided with and sleeve (7) is positioned on bearing block (3) periphery wall between described end cap (6) and main spindle box (1), the end of described main shaft (2) has the flange part (8) of outwardly convex, this machine tool chief axis (2) locking device comprises the fluted disc (9) that described flange part (8) is fixed with, the fastening teeth post (10) that several synchronously move radially is provided with in described sleeve (7), described fastening teeth post (10) have the teeth (10a) that can be meshed with the gear teeth (9a) on fluted disc (9), moving radially by hydraulic control of described fastening teeth post (10).
2. a kind of machine tool chief axis locking device according to claim 1, is characterized in that, described fastening teeth post (10) comprises oil-in (11) and oil-out (12), and described oil-in (11) is connected respectively at oil cylinder with oil-out (12).
3. a kind of machine tool chief axis (2) locking device according to claim 1 and 2, is characterized in that, described fastening teeth post (10) is distributed in the upper and lower of fluted disc (9) uniformly and number is respectively 3.
4. a kind of machine tool chief axis locking device according to claim 3, it is characterized in that, the described fastening teeth post (10) being positioned at fluted disc (9) top is symmetrically set with the fastening teeth post (10) being positioned at fluted disc (9) bottom, and the angle between the described each fastening teeth post (10) being positioned at fluted disc (9) top or bottom is between 20 ° to 30 °.
5. a kind of machine tool chief axis locking device according to claim 3, it is characterized in that, the end of described main shaft (2) is provided with handle of a knife (13), and the end of described handle of a knife (13) to embed in main shaft (2) and is provided with mechanical seal (14) between the end of handle of a knife (13) and main shaft (2) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052073.5U CN204449344U (en) | 2015-01-26 | 2015-01-26 | A kind of machine tool chief axis locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052073.5U CN204449344U (en) | 2015-01-26 | 2015-01-26 | A kind of machine tool chief axis locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204449344U true CN204449344U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520052073.5U Expired - Fee Related CN204449344U (en) | 2015-01-26 | 2015-01-26 | A kind of machine tool chief axis locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204449344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434172A (en) * | 2018-12-14 | 2019-03-08 | 武汉雄驰机电设备有限公司 | End ring amortisseur bar link slot milling groove craft equipment and application method in motor |
| CN113084208A (en) * | 2021-04-09 | 2021-07-09 | 云南春林珠精密机床制造有限公司 | Telescopic and locking precision machine tool spindle |
-
2015
- 2015-01-26 CN CN201520052073.5U patent/CN204449344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434172A (en) * | 2018-12-14 | 2019-03-08 | 武汉雄驰机电设备有限公司 | End ring amortisseur bar link slot milling groove craft equipment and application method in motor |
| CN113084208A (en) * | 2021-04-09 | 2021-07-09 | 云南春林珠精密机床制造有限公司 | Telescopic and locking precision machine tool spindle |
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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: 20150708 Termination date: 20160126 |
|
| EXPY | Termination of patent right or utility model |