CN208132372U - A kind of self expansion correction pier - Google Patents
A kind of self expansion correction pier Download PDFInfo
- Publication number
- CN208132372U CN208132372U CN201820608261.5U CN201820608261U CN208132372U CN 208132372 U CN208132372 U CN 208132372U CN 201820608261 U CN201820608261 U CN 201820608261U CN 208132372 U CN208132372 U CN 208132372U
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- mandrel
- hole
- groove
- steel ball
- pier
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Abstract
The utility model discloses a kind of self expansions to correct pier, including pedestal, hex nut, mandrel and catapult steel ball headless screw, pedestal lower end is equipped with groove, pedestal upper end is equipped with through-hole, through-hole is connected to groove, mandrel one end is equipped with screw thread, the mandrel other end is set there are two threaded hole, catapult steel ball headless screw is installed in threaded hole, limited block is equipped among mandrel, mandrel one end passes through through-hole and is fixed in groove by hex nut, eliminates workpiece axis hole and mandrel gap by catapult steel ball headless screw elasticity itself；Workpiece loading, unloading are convenient, are not necessarily to other auxiliary movements；Improve positioning accuracy.
Description
Technical field
The utility model relates to a kind of correction piers, correct pier more particularly, to a kind of self expansion.
Background technique
Used tool corrects pier in correcting process, and originally correction pier structure used is the concrete-cored axis of pedestal, this structure
The gap between locating shaft and workpiece hole can not be eliminated.Keep workpiece cantilever longer, error is bigger, workpiece spindle internal broaching size not
Unanimously, amount of measurement error is just different, axis hole geometric tolerance is different, measurement product inaccuracy.Reason is to sum up stated, causes and closes originally
The product of lattice is obtained unqualified, overproof product originally by school, is mistaken as qualification, thus caused by rework rate it is very high, cause nothing
Necessary human and material resources waste.
Utility model content
The technical problems to be solved in the utility model be overcome existing correction pier can not eliminate locating shaft and workpiece hole it
Between gap defect, a kind of self expansion correction pier is provided, to solve the above problems.
To achieve the above object, the utility model provides the following technical solutions：A kind of self expansion correction pier, including pedestal,
Hex nut, mandrel and catapult steel ball headless screw, the pedestal lower end are equipped with groove, and the pedestal upper end is equipped with through-hole, institute
It states through-hole to be connected to groove, described mandrel one end is equipped with screw thread, and the mandrel other end is set there are two threaded hole, the threaded hole
Catapult steel ball headless screw is inside installed, limited block is equipped among the mandrel, described mandrel one end passes through through-hole and passes through six
Angle nut is fixed in groove.
Compared with prior art, the utility model has the beneficial effects that：This kind of self expansion corrects pier, by catapult steel ball without
Head screw elasticity itself eliminates workpiece axis hole and mandrel gap；Workpiece loading, unloading are convenient, are not necessarily to other auxiliary movements；It is fixed to improve
Position precision.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings：
Fig. 1 is that a kind of self expansion described in the utility model corrects pier structure schematic diagram；
Fig. 2 is schematic diagram of base structure described in the utility model；
Fig. 3 is core shaft structure schematic diagram described in the utility model；
In figure：1, pedestal；2, hex nut；3, mandrel；4, catapult steel ball headless screw；5, groove；6, through-hole；7, spiral shell
Line；8, bolt hole；9, limited block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of self expansion correction pier, including pedestal 1, six
Angle nut 2, mandrel 3 and catapult steel ball headless screw 4,1 lower end of pedestal are equipped with groove 5, and 1 upper end of pedestal is equipped with through-hole 6, through-hole 6
It is connected to groove 5,3 one end of mandrel is equipped with screw thread 7, and 3 other end of mandrel is set there are two threaded hole 8, is equipped with catapult in threaded hole 8
Steel ball headless screw 4, after workpiece axis hole is encased on mandrel 3, catapult steel ball headless screw 4 jacks up workpiece side, the other side
Hole wall is contacted with 3 bus of mandrel always, and the position gap of workpiece is eliminated with this, is equipped with limited block 9, limited block 9 among mandrel 3
It can be used to limit the position of mandrel 3,3 one end of mandrel passes through through-hole 6 and is fixed in groove 5 by hex nut 2.
Concrete principle：In use, one end by mandrel 3 with screw thread 7 passes through through-hole 6 and is fixed on by hex nut 2
In groove 5, catapult steel ball headless screw 4 is mounted in threaded hole 8, when needing to be corrected workpiece, by workpiece axis hole
It being encased on mandrel 3, catapult steel ball headless screw 4 jacks up workpiece side, and other side hole wall is contacted with 3 bus of mandrel always,
The position gap of workpiece is eliminated with this.
This kind of self expansion corrects pier, eliminates between workpiece axis hole and mandrel by catapult steel ball headless screw elasticity itself
Gap；Workpiece loading, unloading are convenient, are not necessarily to other auxiliary movements；Improve positioning accuracy.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (1)
1. a kind of self expansion corrects pier, including pedestal（1）, hex nut（2）, mandrel（3）With catapult steel ball headless screw（4）,
It is characterized in that, the pedestal（1）Lower end is equipped with groove（5）, the pedestal（1）Upper end is equipped with through-hole（6）, the through-hole（6）
With groove（5）Connection, the mandrel（3）One end is equipped with screw thread（7）, the mandrel（3）The other end is set there are two threaded hole（8）,
The threaded hole（8）Catapult steel ball headless screw is inside installed（4）, the mandrel（3）Centre is equipped with limited block（9）, the core
Axis（3）One end passes through through-hole（6）And pass through hex nut（2）It is fixed on groove（5）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608261.5U CN208132372U (en) | 2018-04-26 | 2018-04-26 | A kind of self expansion correction pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608261.5U CN208132372U (en) | 2018-04-26 | 2018-04-26 | A kind of self expansion correction pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208132372U true CN208132372U (en) | 2018-11-23 |
Family
ID=64310293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820608261.5U Active CN208132372U (en) | 2018-04-26 | 2018-04-26 | A kind of self expansion correction pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208132372U (en) |
-
2018
- 2018-04-26 CN CN201820608261.5U patent/CN208132372U/en active Active
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