CN204366573U - Main shaft is forged a knife relief arrangement - Google Patents
Main shaft is forged a knife relief arrangement Download PDFInfo
- Publication number
- CN204366573U CN204366573U CN201420869670.2U CN201420869670U CN204366573U CN 204366573 U CN204366573 U CN 204366573U CN 201420869670 U CN201420869670 U CN 201420869670U CN 204366573 U CN204366573 U CN 204366573U
- Authority
- CN
- China
- Prior art keywords
- knife
- main shaft
- bearing
- forged
- spring base
- 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 utility model discloses a kind of main shaft to forge a knife relief arrangement, comprise mandrel, the end of described mandrel is provided with bearing, and the outside of described mandrel is provided with spacer ring, wherein, the below of bearing is provided with water jacket, the side of described water jacket is provided with spring base, and the inside of described spring base is provided with bolt, and described bolt is provided with spring, the side of described spring base is provided with oil cylinder seat, and the top of described oil cylinder seat is provided with left-hand thread and retainer ring.The main shaft that the utility model provides is forged a knife relief arrangement, avoids bearing when main shaft is forged a knife and bears the effect of the power of forging a knife again, and then play the effect of available protecting bearing.
Description
Technical field
The utility model relates to a kind of relief arrangement of Digit Control Machine Tool, particularly relates to a kind of main shaft and to forge a knife relief arrangement.
Background technology
When in prior art, main shaft of numerical control machine tool is forged a knife, the bearing of rear end will bear the power of forging a knife of main shaft pulling force 2 times nearly usually, this kind of situation there will not be problem usually, but in some special cases may because of the exception of tool striking device, or pull bar and axle uncontrollable reason such as to be blocked and are caused that power of forging a knife is abnormal to be increased, and will injure rear end bearing like this.Especially in high-speed main spindle, in order to preferentially ensure rotating speed, can do very little by the precompressed of bearing, this just makes its bearing capacity by restriction to a certain extent, namely needs to carry out certain restriction to the power of forging a knife.But because structure problem under normal circumstances, the power of forging a knife cannot meet restrictive condition.The rear end bearing of forging a knife to protect main shaft, the stressed effect of restriction rear end bearing, the utility model proposes a kind of main shaft and to forge a knife relief arrangement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of main shaft and forges a knife relief arrangement, avoids bearing when main shaft is forged a knife and bears the power of forging a knife again, and then plays the effect of protection bearing.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of main shaft and to forge a knife relief arrangement, comprise mandrel, the end of described mandrel is provided with bearing, and the outside of described mandrel is provided with spacer ring, wherein, the below of bearing is provided with water jacket, the side of described water jacket is provided with spring base, and the inside of described spring base is provided with bolt, and described bolt is provided with spring, the side of described spring base is provided with oil cylinder seat, and the top of described oil cylinder seat is provided with left-hand thread and retainer ring.
Above-mentioned main shaft is forged a knife relief arrangement, and wherein, described left-hand thread and retainer ring are interfixed by screw.
Above-mentioned main shaft is forged a knife relief arrangement, and wherein, the outside of described mandrel is provided with a nut had locking effect.
The utility model has following beneficial effect relative to prior art: the main shaft that the utility model provides is forged a knife relief arrangement; when main shaft is forged a knife; power of forging a knife is delivered to spring base by oil cylinder seat; spring-compressed spring base upwards floats; until left-hand thread blocks spring base, the power of forging a knife is passed to left-hand thread by spring base again, and the power of forging a knife is delivered on mandrel through screw thread by left-hand thread again; thus avoid bearing and bear the power of forging a knife again, and then play the effect of protection bearing.
Accompanying drawing explanation
Fig. 1 to forge a knife the structural representation of relief arrangement for main shaft that the utility model provides.
In figure:
1 mandrel 2 spacer ring 3 bearing
4 water jacket 5 spring base 6 springs
7 bolt 8 oil cylinder seat 9 left-hand threads
10 retainer ring 11 screw 12 nuts
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
A kind of main shaft that the utility model provides is forged a knife relief arrangement, and its concrete structure is: comprise mandrel 1, and the end of described mandrel 1 is provided with bearing 3, the forge a knife power of bearing 3 when carrying main shaft is forged a knife usually.The outside of described mandrel 1 is provided with spacer ring 2, and the below of bearing 3 is provided with water jacket 4, and the effect of water jacket 4 is equivalent to bearing block of the prior art, and the side of described water jacket 4 is provided with spring base 5, and spring base 5 is floating connection parts of left-hand thread 9.The inside of described spring base 5 is provided with bolt 7, the effect of bolt 7 is equivalent to spring shaft, and described bolt 7 is provided with spring 6, and the side of described spring base 5 is provided with oil cylinder seat 8, power of forging a knife time main shaft is forged a knife is conducted by oil cylinder seat 8, and the top of described oil cylinder seat 8 is provided with left-hand thread 9 and retainer ring 10.Left-hand thread 9 is the main load bearing components of the power of forging a knife, and is connected with mandrel 1 by screw thread.Retainer ring 10 is fixed parts of left-hand thread 9.
In addition, described left-hand thread 9 and retainer ring 10 are interfixed by screw 11, and the outside of described mandrel 1 is provided with a nut had locking effect 12.
Action effect of the present utility model is mainly reflected in; when main shaft is forged a knife; power of forging a knife is delivered to spring base 5 by oil cylinder seat 8; spring 6 Compress Spring seat 5 upwards floats; until left-hand thread 9 blocks spring base 5, the power of forging a knife is passed to left-hand thread 9 by spring base 5 again, and the power of forging a knife is delivered on mandrel 1 through screw thread by left-hand thread 9 again; thus avoid bearing 3 and bear the power of forging a knife again, and then play the effect of protection bearing 3.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (3)
1. a main shaft is forged a knife relief arrangement, comprise mandrel, the end of described mandrel is provided with bearing, the outside of described mandrel is provided with spacer ring, it is characterized in that: the below of bearing is provided with water jacket, and the side of described water jacket is provided with spring base, the inside of described spring base is provided with bolt, described bolt is provided with spring, and the side of described spring base is provided with oil cylinder seat, and the top of described oil cylinder seat is provided with left-hand thread and retainer ring.
2. main shaft as claimed in claim 1 is forged a knife relief arrangement, it is characterized in that: described left-hand thread and retainer ring are interfixed by screw.
3. main shaft as claimed in claim 2 is forged a knife relief arrangement, it is characterized in that: the outside of described mandrel is provided with a nut had locking effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869670.2U CN204366573U (en) | 2014-12-31 | 2014-12-31 | Main shaft is forged a knife relief arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869670.2U CN204366573U (en) | 2014-12-31 | 2014-12-31 | Main shaft is forged a knife relief arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204366573U true CN204366573U (en) | 2015-06-03 |
Family
ID=53322821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420869670.2U Expired - Fee Related CN204366573U (en) | 2014-12-31 | 2014-12-31 | Main shaft is forged a knife relief arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204366573U (en) |
-
2014
- 2014-12-31 CN CN201420869670.2U patent/CN204366573U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |