CN206803922U - A kind of axiality mandrel - Google Patents
A kind of axiality mandrel Download PDFInfo
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- CN206803922U CN206803922U CN201720647385.XU CN201720647385U CN206803922U CN 206803922 U CN206803922 U CN 206803922U CN 201720647385 U CN201720647385 U CN 201720647385U CN 206803922 U CN206803922 U CN 206803922U
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- mandrel
- mandrel body
- axle sleeve
- sleeve
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Abstract
The utility model discloses a kind of axiality mandrel, including mandrel body, intermediate sleeve, axle sleeve and hold-down mechanism are arranged with mandrel body successively, section part is connected between mandrel body, intermediate sleeve and axle sleeve and is respectively arranged with type groove, detent mechanism is provided with type groove, detent mechanism is in contact with the inwall of workpiece, locating ring is also arranged with outside axle sleeve, locating ring is engaged with workpiece, wherein, detent mechanism includes retainer and multiple steel balls, retainer are embedded in type groove, steel ball is arranged on retainer, and steel ball is in contact with the inwall of workpiece.The utility model realizes workpiece, and axially just positioning and radial direction are accurately positioned, and are reduced positioning contact area, are improved the orientation range and surface quality of workpiece.In addition, its is simple in construction, dismantles, be easy for installation, labor intensity, manufacturing cost are low, applied widely.
Description
Technical field
It the utility model is related to measurement axiality technical field, more particularly to a kind of axiality mandrel.
Background technology
Axiality is exactly degrees of offset of the lock pin internal diameter apart from the whole center of circle.Its perfect condition is zero, i.e., with the whole center of circle
Without skew, but actually there is certain offset.At present, the measuring method of axiality is pacified after workpiece is worn into conical core shaft
On deflection instrument, the position to be detected is measured with amesdial；Rotational workpieces again, observation amesdial registration change, so as to obtain
Coaxial angle value.However, when measuring the concentricity of the stricter workpiece of some surface roughness requirements, determined using conical core shaft
The method of position may be damaged to the surface of workpiece during installation and removal.In addition, the internal diameter size of some workpiece is public
Difference is bigger, and the mode positioned using conical core shaft then needs two even more mandrels to measure same workpiece, so as to
Add labor intensity and manufacturing cost.
The content of the invention
The utility model is mainly to solve the technical problem in the presence of prior art, so as to provide a kind of positioning measurement effect
Fruit is good, and labor intensity is low, and manufacturing cost is low, and axiality mandrel applied widely.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
Axiality mandrel provided by the utility model, it includes：
Mandrel body, is arranged with intermediate sleeve, axle sleeve and hold-down mechanism on the mandrel body successively, the mandrel body,
Section part is connected between intermediate sleeve and axle sleeve and is respectively arranged with type groove, detent mechanism, the localization machine are provided with the type groove
Structure is in contact with the inwall of workpiece, and locating ring is also arranged with outside the axle sleeve, and the locating ring is engaged with the workpiece, its
In, the detent mechanism includes retainer and multiple steel balls, and the retainer is embedded in the type groove, and the steel ball is arranged on
On the retainer, and the steel ball is in contact with the inwall of the workpiece.
Further, the hold-down mechanism includes spring, gasket ring and nut sleeve, and the spring is set in the mandrel body
On, and the spring is arranged between the axle sleeve and nut sleeve, and the nut sleeve is set on the mandrel body, and with institute
Sleeve thread connection is stated, the gasket ring is arranged between the spring and the nut sleeve.
Further, be additionally provided with cushion on the surface that the locating ring is in contact with the workpiece, the cushion with
The locating ring detachable connection.
Further, anti-slip veins are additionally provided with the mandrel body left end surface.
The beneficial effects of the utility model are：Conical core shaft is replaced by using mandrel, and is arranged successively on mandrel
Intermediate sleeve, axle sleeve and hold-down mechanism form segmentation structure, realize and are dismantled between mandrel and workpiece, be easy for installation；And utilize and determine
Position ring carries out axially just positioning to workpiece, and detent mechanism carries out radially being accurately positioned to workpiece, and multiple steel balls realize small area
Contact positioning, the orientation range and surface quality of workpiece are improved, reduces parts needed for measuring, reduces manufacturing cost.
In addition, the utility model is simple in construction, positioning measurement effect is good, and labor intensity is low, and applied widely.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of axiality mandrel of the present utility model；
Fig. 2 be axiality mandrel of the present utility model without workpiece when left view；
Fig. 3 is the sectional view in A-A directions in Fig. 1.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
Refering to shown in Fig. 1-3, axiality mandrel of the present utility model, it includes：
Mandrel body 1, is arranged with intermediate sleeve 2, axle sleeve 3 and hold-down mechanism 4 on mandrel body 1 successively, mandrel body 1, in
Between between set 2 and axle sleeve 3 connection section part be respectively arranged with type groove 5, be provided with detent mechanism 7 in type groove 5, detent mechanism 7 with
The inwall of workpiece 8 is in contact, and locating ring 9 is also arranged with outside axle sleeve 3, and locating ring 9 is engaged with workpiece 8, wherein, detent mechanism
7 include retainer 71 and multiple steel balls 72, and retainer 71 is embedded in type groove 5, and steel ball 73 is arranged on retainer 71, and steel ball
73 are in contact with the inwall of workpiece 8.
The utility model replaces conical core shaft by using mandrel body 1, and is arranged intermediate sleeve successively on mandrel body 1
2nd, axle sleeve 3 and hold-down mechanism 4 form segmentation structure, realize and are dismantled between mandrel body 1 and workpiece 8, be easy for installation；And utilize
Locating ring 9 is carried out axially just positioning to workpiece 8, and detent mechanism 7 is carried out radially being accurately positioned to workpiece 8, and multiple steel balls 72 are realized
Small area contact positioning, improve the orientation range and surface quality of workpiece 8, reduce measurement needed for parts, reduce
Manufacturing cost.In addition, the utility model is simple in construction, positioning measurement effect is good, and labor intensity is low, and applied widely.
Specifically, hold-down mechanism 4 includes spring 41, gasket ring 42 and nut sleeve 43, and spring 41 is set on mandrel body 1,
And spring 41 is arranged between axle sleeve 3 and nut sleeve 43, nut sleeve 43 is set on mandrel body 1, and is connected with the screw thread of axle sleeve 3
Connect, gasket ring 42 is arranged between spring 41 and nut sleeve 43, and gasket ring 42 can effectively ensure that the restoring force of spring 41, prevents spring 41
Being compressed beyond decrement can not recover, so that the failure of hold-down mechanism 4 and the positioning of workpiece 8 are inaccurate.In the present embodiment, type groove 5
V-type or U-shape structure are could be arranged to, while retainer is provided with multiple circular holes；Workpiece 8 is placed when no on mandrel body 1
When, due to the elastic force of spring 41 effect in hold-down mechanism 4, intermediate sleeve 2, axle sleeve 3 and mandrel body 1 is in impaction state, this
When detent mechanism 7 in multiple steel balls 72 it is outwardly by circular hole under the squeezing action of the two sides of type groove 5, while be kept frame
71 limitations, prevent that multiple steel balls 72 from dispersing when causing work the positioning failure of workpiece 8；Preferably, circular hole interval is equally laid in
On retainer 71, and circular hole corresponds with steel ball 72, and the diameter of circular hole is less than the diameter of steel ball 72, so as to effectively prevent
Steel ball 72 outwards disperses and the problem of play from each other under extruding force effect；Meanwhile ensure that steel ball 72 passes through retainer
Circular hole on 71 contacts positioning with the inwall of workpiece 8 and contact is uniform, improves the positioning precision and measurement accuracy of workpiece 8.Work as core
When placing workpiece 8 in shaft body 1, under the elastic force of spring 41 effect in hold-down mechanism 4, axle sleeve 3 is promoted to make to be set in outside it
Locating ring 9 be engaged with workpiece 8, and in being pressed into contact with state, realize and workpiece 8 carried out axially just to position；Meanwhile workpiece
8 inwalls equably extrude multiple steel balls 72, multiple steel balls 72 is allowed mandrel body 1, intermediate sleeve 2 and axle sleeve under extruding force effect
3 is separated from each other, to concede space to steel ball 72, while makes steel ball 72 tightly under the elastic force of spring 41 effect in hold-down mechanism 4
The inwall of workpiece 8 is withstood, radially effect is accurately positioned to reach.So as to facilitate staff to put workpiece 8 and the entirety of mandrel body 1
Put and coaxality measurement is carried out on deflection instrument, improve measurement accuracy and efficiency.
Preferably, cushion 6 is additionally provided with the surface that locating ring 9 is in contact with workpiece 8, cushion 6 and locating ring 9 are removable
Formula connection is unloaded, is convenient for changing, while the workpiece 8 for effectively preventing locating ring 9 high to surface finish requirements causes to contact impression defect,
Improve the surface quality of workpiece 8.
Preferably, anti-slip veins 11, increase staff and mandrel body 1 are additionally provided with the left end surface of mandrel body 1
Contact friction force, workpiece 7 is removed from mandrel body 1 so as to be advantageous to staff, while maintenance easy to disassemble and installation
Safeguard the miscellaneous part on mandrel body 1.
More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
Any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.Therefore,
The scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of axiality mandrel, including mandrel body, it is characterised in that：Be arranged with successively on the mandrel body intermediate sleeve,
Axle sleeve and hold-down mechanism, section part is connected between the mandrel body, intermediate sleeve and axle sleeve and is respectively arranged with type groove, the type groove
Detent mechanism is inside provided with, the detent mechanism is in contact with the inwall of workpiece, and locating ring, institute are also arranged with outside the axle sleeve
Locating ring is stated to be engaged with the workpiece, wherein, the detent mechanism includes retainer and multiple steel balls, and the retainer is embedded
In the type groove, the steel ball is arranged on the retainer, and the steel ball is in contact with the inwall of the workpiece.
2. axiality mandrel as claimed in claim 1, it is characterised in that：The hold-down mechanism includes spring, gasket ring and nut
Set, the spring is set on the mandrel body, and the spring is arranged between the axle sleeve and nut sleeve, the nut
It is set on the mandrel body, and is connected with the sleeve thread, the gasket ring is arranged on the spring and the nut
Between set.
3. axiality mandrel as claimed in claim 2, it is characterised in that：The surface that the locating ring is in contact with the workpiece
On be additionally provided with cushion, the cushion and the locating ring detachable connection.
4. axiality mandrel as claimed in claim 3, it is characterised in that：It is additionally provided with the mandrel body left end surface anti-
Sliding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720647385.XU CN206803922U (en) | 2017-06-06 | 2017-06-06 | A kind of axiality mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720647385.XU CN206803922U (en) | 2017-06-06 | 2017-06-06 | A kind of axiality mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206803922U true CN206803922U (en) | 2017-12-26 |
Family
ID=60745354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720647385.XU Active CN206803922U (en) | 2017-06-06 | 2017-06-06 | A kind of axiality mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206803922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457526A (en) * | 2018-01-31 | 2018-08-28 | 平湖广奕五金锁具有限公司 | A kind of mandrel component convenient for adjusting |
-
2017
- 2017-06-06 CN CN201720647385.XU patent/CN206803922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457526A (en) * | 2018-01-31 | 2018-08-28 | 平湖广奕五金锁具有限公司 | A kind of mandrel component convenient for adjusting |
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