CN201609848U - Numerically controlled machine main shaft antilock device - Google Patents
Numerically controlled machine main shaft antilock device Download PDFInfo
- Publication number
- CN201609848U CN201609848U CN2010201427942U CN201020142794U CN201609848U CN 201609848 U CN201609848 U CN 201609848U CN 2010201427942 U CN2010201427942 U CN 2010201427942U CN 201020142794 U CN201020142794 U CN 201020142794U CN 201609848 U CN201609848 U CN 201609848U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- band
- type brake
- band brake
- machine tool
- 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
Links
Abstract
The utility model discloses a machine main shaft antilock device in the mechanical field, to solve the problem that the band brake block is not easy to disengage when the band brake of the prior machine main shaft is loosen in adverse environment. The machine main shaft antilock device includes two band brake blocks and two hydraulic jack poles in bilateral symmetry arrangement, the hydraulic jack poles folds and drives the band brake blocks to loose and clamp the machine main shaft, which is characterized in that a cylindrical spring is mounted between two band brake blocks. In the utility model, a pre-stress spring is mounted between twain band brake blocks, the band brake blocks are easy to disengage, to overcome the defect that the prior main shaft is easy to lock in the adverse environment. The utility model has simple structure and good effect.
Description
Technical field
The utility model relates to a kind of Digit Control Machine Tool, relates in particular to a kind of main shaft of numerical control machine tool antilock device.
Background technology
One of the existing large-sized numerical control milling dual-purpose machine tool of Wuhan Iron and Steel Plant factory; be responsible for the milling processing of continuous casting billet testing for internal quality sample; because the stressed operation of the long-term level of machine tool chief axis; main shaft has distortion, in addition the main shaft long-time running in the environment of greasy dirt and metallic dust, make that the main shaft band-type brake unclamps after; the band-type brake piece is not easy to throw off; thereby influence the main shaft lifting, cause the lathe display screen alarm signal to occur, sometimes autostop.Along with the expansion of production capacity, need every day the sample base of inspection during manufacture increasing, the lathe unstable working condition has influenced machining accuracy, and machine tool chief axis band-type brake clamp do not unclamp and make that also servomotor is overheated, influences its service life, delays production.
The utility model content
The purpose of this utility model is to overcome the prior art defective, and a kind of main shaft of numerical control machine tool antilock device is provided.
The technical solution of the utility model is achieved in that a kind of main shaft of numerical control machine tool antilock device, comprise two band-type brake pieces and two hydraulic mandrils of being symmetrically arranged, the hydraulic mandril folding drives the band-type brake piece and unclamps and clamp machine tool chief axis, it is, is equipped with helical spring between two band-type brake pieces.
Preferably, described helical spring two ends are welded with circular steel disc respectively.
Preferably, described helical spring two band-type brake pieces be in stress when holding state tightly be hydraulic mandril pressure 0.2-0.4 doubly.
The utility model characteristics:
1, when work, press lathe band-type brake key after, the both sides hydraulic mandril stretches out, and withstands the band-type brake piece, the band-type brake piece is held main shaft tightly, helical spring is compressed simultaneously because spring stress is less than hydraulic mandril pressure, this moment, the band-type brake piece still can be held main shaft tightly; When pressing lathe band-type brake reverse keys, the withdrawal of both sides hydraulic mandril, spring flicks immediately, pushes the band-type brake piece to both sides, and main shaft breaks away from holds state tightly, but the follow procedure regulation is done oscilaltion.
2, the utility model throws off easily the band-type brake piece by prestressed spring between two band-type brake pieces, overcome present machine tool chief axis under harsh conditions easily by the defective of locking, and simple in structure, effective.
Description of drawings
Accompanying drawing is the utility model structural representation.
Among the figure, 1-machine tool chief axis, 2-band-type brake piece, 3-hydraulic mandril, 4-helical spring, the circular steel disc of 6-
The specific embodiment
Be further described below in conjunction with accompanying drawing:
As shown in the figure, a kind of main shaft of numerical control machine tool antilock device, comprise two band-type brake pieces 2 and two hydraulic mandrils 3 of being symmetrically arranged, hydraulic mandril 3 foldings drive band-type brake piece 2 and unclamp and clamp machine tool chief axis 1, be equipped with helical spring 4 between two band-type brake pieces 2, the natural length of helical spring 4 is greater than the range distance of two band-type brake pieces 2, so that clamping, helical spring 4 two ends are welded with circular concentric steel disc 6 respectively, are convenient to conduct uniformly and stably elastic force.
During work, press lathe band-type brake key after, both sides hydraulic mandril 3 stretches out, and withstands band-type brake piece 2, band-type brake piece 2 is held machine tool chief axis 1 tightly, simultaneously helical spring 4 is compressed because spring 4 stress are less than hydraulic mandril 3 pressure, this moment, the band-type brake piece 2 still can be held machine tool chief axis 1 tightly; When pressing lathe band-type brake reverse keys, 3 withdrawals of both sides hydraulic mandril, spring 4 flicks immediately, pushes band-type brake piece 2 to both sides, and main shaft breaks away from holds state tightly, but the follow procedure regulation is done oscilaltion.Practice shows, spring stress remains between 0.2～0.4 times of hydraulic mandril pressure, can overcome the resistance of both sides band-type brake piece well, and main shaft is broken away from by band-type brake piece locking state, realizes the main shaft lifting freely.
The utility model throws off easily the band-type brake piece by prestressed spring between two band-type brake pieces, overcome present machine tool chief axis under harsh conditions easily by the defective of locking, and simple in structure, effective.
Claims (3)
1. a main shaft of numerical control machine tool antilock device comprises two band-type brake pieces and two hydraulic mandrils of being symmetrically arranged, and hydraulic mandril folding drive band-type brake piece unclamps and clamps machine tool chief axis, it is characterized in that: be equipped with helical spring between two band-type brake pieces.
2. main shaft of numerical control machine tool antilock device according to claim 1 is characterized in that: described helical spring two ends are welded with circular steel disc respectively.
3. main shaft of numerical control machine tool antilock device according to claim 1 and 2 is characterized in that: described helical spring two band-type brake pieces be in stress when holding state tightly be hydraulic mandril pressure 0.2-0.4 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201427942U CN201609848U (en) | 2010-03-26 | 2010-03-26 | Numerically controlled machine main shaft antilock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201427942U CN201609848U (en) | 2010-03-26 | 2010-03-26 | Numerically controlled machine main shaft antilock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201609848U true CN201609848U (en) | 2010-10-20 |
Family
ID=42960481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201427942U Expired - Fee Related CN201609848U (en) | 2010-03-26 | 2010-03-26 | Numerically controlled machine main shaft antilock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201609848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483302A (en) * | 2018-12-19 | 2019-03-19 | 南京工程学院 | A kind of anti-lock constant temperature axis system |
-
2010
- 2010-03-26 CN CN2010201427942U patent/CN201609848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483302A (en) * | 2018-12-19 | 2019-03-19 | 南京工程学院 | A kind of anti-lock constant temperature axis system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20160326 |