CN202877561U - Novel apex - Google Patents
Novel apex Download PDFInfo
- Publication number
- CN202877561U CN202877561U CN 201220620414 CN201220620414U CN202877561U CN 202877561 U CN202877561 U CN 202877561U CN 201220620414 CN201220620414 CN 201220620414 CN 201220620414 U CN201220620414 U CN 201220620414U CN 202877561 U CN202877561 U CN 202877561U
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- China
- Prior art keywords
- air
- apex
- bearing
- shaft
- air bearing
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- Expired - Fee Related
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Abstract
The utility model discloses a novel apex, and belongs to parts of an automatic machine tool. An air bearing is sleeved in a cavity of an apex shell; an apex shaft is supported in the apex shell in the radial direction by the air bearing; the front end of the apex shaft extends out of a front-end pressure cover and is connected with the apex through a screw; a sealing ring is sleeved on the excircle of the shaft end cover, is clamped in a rear-end pressure cover, and is fixed at the rear end of the apex shell through a retainer; the cross-shaped apex shell is horizontally placed and fixed in a round hole of a connection base 1 in a matching manner; and the two sides of the apex have air bearing air holes which are communicated with air drains on the periphery of the air bearing, so that the apex shaft 4 is surrounded in air by an air film in the air bearing. No friction force is produced between the apex shaft and the air bearing, the shortage caused by mechanical frictional wear is overcome, and the rotating stability of a main shaft is greatly improved; and the whole outside profile of the apex can be changed correspondingly according to the working condition. The novel apex is particularly suitable for thin-wall long round pipes, more particularly pipe fittings with the accuracy requirement.
Description
Technical field
The utility model belongs to the automated machine tool components range, particularly a kind of Novel centre.
Background technology
Along with the development of science and technology, the demand of various machine tools is more and more, and is more and more higher to the machine tool required precision.The demand of leaning on traditional craft or automanual method of operating can't satisfy the development of current science and technology, for car, mill, the machine tool such as mill in the Precision Machining process of parts, the stationarity of the main shaft of machine tool element rotation, spindle abrasion degree determine the precise processing precision of parts; The main shaft of machine tool equipment is mainly by the bearing mechanical support, the mechanical friction wearing and tearing are quite serious, along with increase process time, stationarity with the rotation of its chuck main shaft, top main shaft is even more important, if the stationarity variation of the rotation of their main shafts, the precise processing precision of parts and the depth of parallelism are difficult to reach requirement;
The utility model content
If the purpose of this utility model is for chuck main shaft in the prior art, the stationarity variation of the rotation of tail spindle, the precise processing precision of parts and the depth of parallelism are difficult to meet the requirements of deficiency, a kind of Novel centre is proposed, it is characterized in that, tail spindle 4 is T-shaped hollow cylinder, top shell 2 interior cavity inner sleeves enter air-bearing 6, tail spindle 4 by air-bearing 6 radial support in top shell 2, front end gland 3 is fixed on top shell 2 front ends, tail spindle 4 front ends stretch out front end gland 3, and be connected with top 5 by screw, hubcap 9 cylindricals put sealing ring, snap in rear end gland 8, and rear end gland 8 is fixed on top shell 2 rear ends by spacer ring 7, air cavity lid 10 is fixing with rear end gland 8, and air cavity covers 10 central axis places top forced air supply mouth 12 is set.
Described top shell is cross, and horizontal traverse is connected 10 with rear end gland 8, spacer ring 7 and is fixed in the circular hole that is connected base 1 with air cavity.
Described cross top shell both sides arrange air-bearing air supply opening air vent, communicate with the air drain of air-bearing 6 peripheries, and tail spindle 4 is floated in the air air-bearing 6 interior encirclements by air film.
The beneficial effects of the utility model are that tail spindle is floated in the air-bearing 6 interior air by the air film encirclement, almost do not have frictional force, and ultraprecise air supporting tail spindle can overcome the deficiency that the mechanical friction wearing and tearing bring, and greatly improves the stationarity of main shaft rotation; The top zerofriction force impact of this air supporting, high rotating accuracy, high position precision, compact conformation; Whole top support and the outer shape of coupling part can be made corresponding change according to service condition.Being fit to the most particularly has the pipe fitting of precision requirement to process in the outside for the thin-wall long pipe.
Description of drawings
Fig. 1 is the Novel centre structural representation.
The specific embodiment
The utility model proposes a kind of Novel centre is explained below in conjunction with accompanying drawing.
Figure 1 shows that the Novel centre structural representation.Among the figure, tail spindle 4 is T-shaped hollow cylinder, and the hollow quality that can reduce whole moving component is made at tail spindle 4 middle parts, and then reduces rotary inertia; Top shell 2 interior cavity inner sleeves enter air-bearing 6, tail spindle 4 by air-bearing 6 radial support in top shell 2, front end gland 3 is fixed on top shell 2 front ends, tail spindle 4 front ends stretch out front end gland 3, and be connected with top 5 by screw, hubcap 9 cylindricals put sealing ring, snap in rear end gland 8, rear end gland 8 is fixed on top shell 2 rear ends by spacer ring 7, and air cavity lid 10 is fixing with rear end gland 8; Air cavity covers 10 central axis places top forced air supply mouth 12 is set; Its hubcap 9 plays the effect of sealing axocoel, and with air chamber of air cavity lid 10 common compositions, the pressure in the air chamber is relevant with the pressure on top, can adjust arbitrarily.
Above-mentioned top shell is cross, and horizontal traverse is connected 10 with rear end gland 8, spacer ring 7 and is fixed in the circular hole that is connected base 1 with air cavity.On cross top shell both sides air-bearing air supply opening air vent is set, communicate with the air drain of air-bearing 6 peripheries, tail spindle 4 is floated in the air air-bearing 6 interior encirclements by air film, therefore, almost there is not frictional force between tail spindle and the air-bearing 6, ultraprecise air supporting tail spindle can overcome the deficiency that the mechanical friction wearing and tearing bring, and greatly improves the stationarity of main shaft rotation; Whole top support and the outer shape of coupling part can be made corresponding change according to service condition.Being fit to the most particularly has the pipe fitting of precision requirement to process in the outside for the thin-wall long pipe.
Claims (3)
1. Novel centre, it is characterized in that tail spindle is T-shaped hollow cylinder, is inserted in air-bearing in the top shell inner cavity, tail spindle by the air-bearing radial support in top shell, the front end gland is fixed on top shell front end, and the tail spindle front end stretches out the front end gland, and is connected with top by screw, the hubcap cylindrical puts sealing ring, snap in the rear end gland, the rear end gland is fixed on top outer casing back by spacer ring, and the air cavity lid is fixed with the rear end gland; Air cavity lid central axis place arranges top forced air supply mouth.
2. described a kind of Novel centre according to claim 1 is characterized in that described top shell is cross, and horizontal traverse is connected with rear end gland, spacer ring and air cavity and is fixed in being connected the circular hole of base.
3. described a kind of Novel centre according to claim 1, it is characterized in that, described cross top shell both sides arrange air-bearing air supply opening air vent, communicate with the air drain of air-bearing (6) periphery, and tail spindle (4) is floated in the air by the air film encirclement in air-bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620414 CN202877561U (en) | 2012-11-21 | 2012-11-21 | Novel apex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620414 CN202877561U (en) | 2012-11-21 | 2012-11-21 | Novel apex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202877561U true CN202877561U (en) | 2013-04-17 |
Family
ID=48069027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620414 Expired - Fee Related CN202877561U (en) | 2012-11-21 | 2012-11-21 | Novel apex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202877561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934482A (en) * | 2014-05-15 | 2014-07-23 | 中国工程物理研究院机械制造工艺研究所 | Ultra-precise air floatation top |
| CN104174876A (en) * | 2013-05-27 | 2014-12-03 | 北京海普瑞森科技发展有限公司 | Main shaft for machine tool, machine tool, and method for preventing machine tool from being worn |
-
2012
- 2012-11-21 CN CN 201220620414 patent/CN202877561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174876A (en) * | 2013-05-27 | 2014-12-03 | 北京海普瑞森科技发展有限公司 | Main shaft for machine tool, machine tool, and method for preventing machine tool from being worn |
| CN103934482A (en) * | 2014-05-15 | 2014-07-23 | 中国工程物理研究院机械制造工艺研究所 | Ultra-precise air floatation top |
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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: 20130417 Termination date: 20181121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |