CN206780070U - A kind of hollow shaft cylindricalo grinding frock - Google Patents
A kind of hollow shaft cylindricalo grinding frock Download PDFInfo
- Publication number
- CN206780070U CN206780070U CN201720648807.5U CN201720648807U CN206780070U CN 206780070 U CN206780070 U CN 206780070U CN 201720648807 U CN201720648807 U CN 201720648807U CN 206780070 U CN206780070 U CN 206780070U
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- expansion set
- hollow shaft
- shaft
- pull bar
- conical core
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Abstract
The utility model discloses a kind of hollow shaft cylindricalo grinding frock, belongs to hollow shaft processing technique field, and technical problem to be solved is to provide a kind of simple in construction, easy to loading and unloading, service-strong hollow shaft cylindricalo grinding frock, and the technical scheme of use is：A kind of hollow shaft cylindricalo grinding frock, including expansion set and conical core shaft, expansion set is sleeved in hollow shaft, and conical core shaft is sleeved in expansion set, and conical core shaft is the thick tapered shaft in the thin rear end in front end, expansion set is the elastic expansion sleeve that outer surface is cylinder, the inner surface of expansion set matches with conical core shaft, and expansion set rear end is provided with gear edge, and expansion set front end is provided with multiple openings along longitudinally, opening is circumferentially interspersed, and the utility model is used for hollow shaft cylindricalo grinding.
Description
Technical field
It the utility model is related to a kind of hollow shaft cylindricalo grinding frock.
Background technology
Existing hollow shaft Cylindrical Grinding Processes technique is all with various carry by hollow shaft in daily machining
The plug or pull bar mandrel location and installation workpiece in heart hole.The outer bowlder of processing hollow shaft needs first to measure the straight of inner bore of part 1 every time
Footpath, according to the diameter of measurement to match somebody with somebody car plug, then plug is bumped into endoporus, car centre bore is corrected on lathe.In lathe or mill
It is processed to foreign round using " top of a folder one " or " Double Tops point " method on bed.It is but different due to this kind of part aperture
Hole will inlay the plug of different-diameter and first use, i.e. waste of materials influences the cycle again;The cylindrical precision of axial workpiece is repaired
The lathe precision of centre bore influences, while the part external diametrical extent that need to be processed is by the lathe center frame size shadow for the centre bore that repairs
Ring.This processing method needs multiple working procedure, a variety of machining tools, long processing time, have impact on efficiency and the part processing of processing
Precision.And the dismounting of plug needs to go deep into hollow shaft by long pole, and tapped and can be taken out with hammer, may pulled
Hollow shaft endoporus, causes aperture overflow to scrap.
Utility model content
The utility model overcomes deficiency, technical problem to be solved existing for existing process technology to be to provide a kind of use
Convenient, machining accuracy is high, can be applied to the frock of hollow shaft cylindricalo grinding.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of hollow shaft cylindricalo grinding work
Dress, including expansion set and conical core shaft, expansion set are sleeved in hollow shaft, and conical core shaft is sleeved in expansion set, and conical core shaft is front end
The thick tapered shaft in thin rear end, expansion set are the elastic expansion sleeve that outer surface is cylinder, and inner surface and the conical core shaft of expansion set match,
Expansion set rear end is provided with gear edge, and expansion set front end is provided with multiple openings along longitudinally, and opening is circumferentially interspersed.
Conical core shaft, which is located at the bigger diameter end of frusto-conical face, is provided with outer handle.
The end that set of books is located at opening is respectively communicated with provided with radial direction through hole.
Frock also includes：Disassembly mechanism, disassembly mechanism include cutting ferrule, pull bar and sliding hammer, and sliding hammer center is provided with endoporus, described
Sliding hammer is enclosed on pull bar, and the centrally disposed screwed hole of cutting ferrule, pull bar bottom is threaded, and pull bar is threadedly coupled with cutting ferrule, pull bar top
Portion sets handle, and cutting ferrule, pull bar, sliding hammer center are on the same axis.
The utility model is possessed compared with prior art to be had the beneficial effect that：
1st, the utility model saves material, improves efficiency, and easy for installation, dismounting is simple；
2nd, the utility model expansion set materials'use 65Mn spring steel, there are 8 2mm gaps on expansion set, support expansion set
Open, and because the characteristic of spring steel, expansion set, which disassembles, to be restored, and the error of repetitive positioning accuracy is less than 0.01mm, drop
The low cost of complete machine；
3rd, the utility model uses elastic expansion sleeve, reduces clamping process hollow mandrel class inner bore of part wall and elastic expansion sleeve
Between abrasion, protect the dimensional accuracy of hollow shaft type parts inner hole wall, improve the machining accuracy of outer surface.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural representation of hollow shaft cylindricalo grinding frock of the utility model；
Fig. 2 is Fig. 1 disassembly mechanism schematic diagram；
Fig. 3 is the structural representation of expansion set in Fig. 1；
Fig. 4 is Fig. 3 left view；
In figure：1 is expansion set, and 2 be conical core shaft, and 3 be disassembly mechanism, and 4 be cutting ferrule, and 5 be pull bar, and 6 be sliding hammer, and 7 be opening,
8 be hollow shaft.
Embodiment
A kind of hollow shaft cylindricalo grinding frock as shown in Figure 1, a kind of hollow shaft cylindricalo grinding frock, including expansion set 1 and cone
Mandrel 2 is spent, expansion set 1 is sleeved in hollow shaft 8, and conical core shaft 2 is sleeved in expansion set 1, and conical core shaft 2 is that the thin rear end in front end is thick
Tapered shaft, expansion set 1 are the elastic expansion sleeve that outer surface is cylinder, and inner surface and the conical core shaft 2 of expansion set 1 match, after expansion set 1
End is provided with gear along 9, and the front end of expansion set 1 is provided with multiple openings 7 along longitudinally, and opening 7 is circumferentially interspersed, taper core
Axle 2, which is located at the bigger diameter end of frusto-conical face, is provided with outer handle, and the end that expansion set 1 is located at opening 7 is respectively communicated with provided with radially logical
Hole.
In use, after expansion set 1 is enclosed in conical core shaft 2 in the endoporus of insertion hollow shaft 8, the shelves edge of projection on expansion set 1
Coordinate with the outer face block of the one end of hollow shaft type workpiece 8, by rotating the handle in conical core shaft 2, promote the edge of conical core shaft 2
Expansion set 1 moves axially, the spreading under its frusto-conical face being correspondingly arranged with conical core shaft 2 effect in moving process of expansion set 1,
Its outer peripheral face is set to hold out against on the inner hole wall of hollow shaft type workpiece 8, so as to which hollow shaft type workpiece 8 is fixed in frock.
The utility model also has supporting disassembly mechanism 3 to be used to facilitate disassembling fixture, and the disassembly mechanism includes cutting ferrule 4, draws
Bar 5 and sliding hammer 6, the center of sliding hammer 6 are provided with endoporus, and sliding hammer 6 is enclosed on pull bar 5, and 4 centrally disposed screwed hole of cutting ferrule, the bottom of pull bar 5 is set
Screw thread is put, pull bar 5 is threadedly coupled with cutting ferrule 4, and the top of pull bar 5 sets handle, and the cutting ferrule 4, pull bar 5, the center of sliding hammer 6 exist
On same axis.
Cutting ferrule 4 is caught in the outer grip of conical core shaft 2 on hand using during disassembly mechanism, moved axially by sliding hammer 5 in pull bar 6,
The axial force being applied on pull bar makes conical core shaft 2 be contacted with the release of expansion set 1, and the retraction of expansion set 1 unclamps with hollow shaft to be contacted, smoothly
Dismounting.
The utility model hollow shaft and expansion set mandrel coordinate, on same axis, therefore, the bowlder energy outside mill hollow shaft
Ensure that hollow shaft endoporus is less than 0.01mm relative to cylindrical coaxiality error, the utility model is used in other hollow shafts
When, it is only necessary to one and the supporting expansion set 1 of hollow shaft are, conical core shaft 2 can exchange, and only need a kind of this practicality of model
It is new, reduce cost and facilitate production again；Expansion set mandrel 2 is self-centering, reduces the difficulty of centering part, saves
The time of part processing.Assembly or disassembly is relatively easy to, and can repeatedly be used, and service life is longer, can be in high-volume
Widely used in production and processing；Expansion set 1 is elastic expansion sleeve, can effectively protect hollow shaft type parts endoporus, reduce clamping process
Abrasion between hollow mandrel class inner bore of part wall and elastic expansion sleeve, improves machining accuracy.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Embodiment is stated, in those of ordinary skill in the art's possessed knowledge, the utility model aims can also not departed from
On the premise of various changes can be made.
Claims (4)
1. a kind of hollow shaft cylindricalo grinding frock, including expansion set（1）With conical core shaft（2）, it is characterised in that：The expansion set（1）
It is sleeved on hollow shaft（8）It is interior, conical core shaft（2）It is sleeved on expansion set（1）It is interior, the conical core shaft（2）Thick for the thin rear end in front end
Tapered shaft, the expansion set（1）For the elastic expansion sleeve that outer surface is cylinder, expansion set（1）Inner surface and conical core shaft（2）Phase
Match somebody with somebody, expansion set（1）Rear end is provided with gear edge（9）, expansion set（1）Front end is provided with multiple openings along longitudinally（7）, opening（7）
Circumferentially it is interspersed.
A kind of 2. hollow shaft cylindricalo grinding frock according to claim 1, it is characterised in that：The conical core shaft（2）Position
Outer handle is provided with the bigger diameter end of frusto-conical face.
A kind of 3. hollow shaft cylindricalo grinding frock according to claim 1, it is characterised in that：The expansion set（1）Positioned at opening
Mouthful（7）End be respectively communicated with provided with radial direction through hole.
A kind of 4. hollow shaft cylindricalo grinding frock according to claim 1, it is characterised in that：Described frock also includes：
Disassembly mechanism（3）, the disassembly mechanism includes cutting ferrule（4）, pull bar（5）With sliding hammer（6）, the sliding hammer（6）Center is provided with endoporus,
The sliding hammer（6）It is enclosed on pull bar（5）On, the cutting ferrule（4）Centrally disposed screwed hole, the pull bar（5）Bottom is threaded, institute
State pull bar（5）With cutting ferrule（4）Threaded connection, the pull bar（5）Top sets handle, the cutting ferrule（4）, pull bar（5）, sliding hammer
（6）Center is on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648807.5U CN206780070U (en) | 2017-06-06 | 2017-06-06 | A kind of hollow shaft cylindricalo grinding frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648807.5U CN206780070U (en) | 2017-06-06 | 2017-06-06 | A kind of hollow shaft cylindricalo grinding frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206780070U true CN206780070U (en) | 2017-12-22 |
Family
ID=60715620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720648807.5U Active CN206780070U (en) | 2017-06-06 | 2017-06-06 | A kind of hollow shaft cylindricalo grinding frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206780070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962497A (en) * | 2017-12-29 | 2018-04-27 | 重庆市璧山区四通机械厂 | Axle sleeve assistant grinding frock |
-
2017
- 2017-06-06 CN CN201720648807.5U patent/CN206780070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962497A (en) * | 2017-12-29 | 2018-04-27 | 重庆市璧山区四通机械厂 | Axle sleeve assistant grinding frock |
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