CN208528922U - A kind of inner propping collet - Google Patents
A kind of inner propping collet Download PDFInfo
- Publication number
- CN208528922U CN208528922U CN201821078773.1U CN201821078773U CN208528922U CN 208528922 U CN208528922 U CN 208528922U CN 201821078773 U CN201821078773 U CN 201821078773U CN 208528922 U CN208528922 U CN 208528922U
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- outside
- threaded hole
- screw thread
- housing
- mandrel
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Abstract
The utility model discloses a kind of inner propping collets, are related to part processing clamp field, and it is larger to provide a kind of width that is suitable for being loaded, and the inner propping collet of the lesser workpiece of suit hole.A kind of inner propping collet includes housing and mandrel；Housing includes rise outside portion and pulling portion, rise by portion outer surface outside as supporting surface, rise by portion outside with the threaded hole coaxial with supporting surface, the at least two second deformation slots that the end surface that rises outside is extended close to at least two first deformation slots axially extended in pulling portion by the end surface that rises outside and by pulling portion end face axial are put on outside, and the first deformation slot and the second deformation slot are arranged alternately and circumference uniform distribution；There is the external screw thread being adapted to threaded hole, external screw thread is connect with threaded hole on mandrel.The width that is loaded is larger and the lesser workpiece of suit hole, and when portion of rising outside, threaded hole and external screw thread lengthen, housing and mandrel radial dimension are constant, housing uniform wall thickness, and mandrel size can be larger, and inner propping collet strength and stiffness are good, and the effect that is loaded is good and the service life is long.
Description
Technical field
The utility model relates to part processing clamp field more particularly to a kind of inner propping collets.
Background technique
Inner propping collet refers in insertion hole in piece part, and can spreading realize the fixed fixture of part thus tensioner part.
Existing common inner propping collet structure puts on be provided with deformation slot and bellmouth, inner core outside as shown in figure 4, including housing and mandrel
On tapered surface shore bellmouth, housing can be made to expand, thus tensioner dress workpiece on the coat.The inner support of the structure is pressed from both sides
The shortcomings that head are as follows: when the width that is loaded is larger, and when the lesser workpiece of suit hole, housing, bellmouth and tapered surface are required to lengthen,
So that the diameter of the small end of bellmouth and tapered surface is by very little, so that axle diameter very little, leads to chuck as a whole rigidity not
It is good.Therefore, the inner propping collet of the above structure width that is not particularly suited for being loaded is larger, and the lesser workpiece of suit hole.
Utility model content
Technical problem to be solved by the utility model is: it is larger to provide a kind of width that is suitable for being loaded, and suit hole is smaller
Workpiece inner propping collet.
In order to solve the above problem the technical solution adopted is that: a kind of inner propping collet includes housing and mandrel；Housing includes outer
Rise portion and pulling portion, and portion outer surface of rising outside is supporting surface, portion of rising outside with the threaded hole coaxial with supporting surface, put on outside have by
The end surface that rises outside axially extends at least two first deformation slots in pulling portion and is extended close to by pulling portion end face axial
Rise at least two second deformation slots of end surface outside, and the first deformation slot and the second deformation slot are arranged alternately and circumference uniform distribution；Mandrel
Upper to have the external screw thread being adapted to threaded hole, external screw thread is connect with threaded hole.
Further, threaded hole and externally threaded thread segment are triangle, two inclined-planes in the section are first oblique
The angle of the axis of side and the second bevel edge, the first bevel edge and threaded hole is a, 10 °≤a≤30 °, the axis of the second bevel edge and threaded hole
The angle of line is b, 45 °≤b≤90 °；First bevel edge of the thread segment of threaded hole is towards pulling portion.
Further, being provided with drawing flange in pulling portion.
The beneficial effects of the utility model are: 1, as shown in Figure 1, loading onto workpiece after, draw pulling portion to the right, the first of housing
The inclined-plane that bevel edge is formed is moved along the inclined-plane that the first bevel edge of mandrel is formed, and housing expands tensioner workpiece, therefore the utility model
It can be realized expansion and workpiece be loaded.
2, the width that is loaded is larger and the lesser workpiece of suit hole, when portion of rising outside, threaded hole and external screw thread lengthen, housing and core
Axis radial direction size constancy, housing uniform wall thickness, mandrel size can be larger, and inner propping collet strength and stiffness are good, and be loaded effect
The good and service life is long.
Detailed description of the invention:
Fig. 1 is inner propping collet structure chart；
Fig. 2 is jacket structure figure；
Fig. 3 is inner propping collet partial enlarged view；
Fig. 4 is existing inner propping collet structural schematic diagram；
In the figure, it is marked as housing 1, portion 11 of rising outside, threaded hole 111, supporting surface 112, pulling portion 12, drawing flange 121, the
One deformation slot 13, second deforms slot 14, mandrel 2, external screw thread 21, workpiece 3.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
As depicted in figs. 1 and 2: a kind of inner propping collet includes housing 1 and mandrel 2；Housing 1 includes rise outside portion 11 and pulling portion
12,11 outer surface of portion of rising outside is supporting surface 112, and portion 11 of rising outside has the threaded hole 111 coaxial with supporting surface 112, is had on housing 1
There are at least two first deformation slots 13 extended in pulling portion 12 by 11 end face axial of portion that rises outside and by 12 end face axis of pulling portion
To at least two second deformation slots 14 for extending close to 11 end face of portion of rising outside, the first deformation slot 13 and the second deformation slot 14 replace
Setting and circumference uniform distribution；There is the external screw thread 21 being adapted to threaded hole 111, external screw thread 21 is connect with threaded hole 111 on mandrel 2.
As shown in Figure 1, drawing pulling portion 12 to the right, the inclined-plane that the first bevel edge of housing 1 is formed is along mandrel 2 after loading onto workpiece 3
The inclined-plane that is formed of the first bevel edge it is mobile, housing 1 expands tensioner workpiece 3, therefore the utility model can be realized expansion and workpiece 3
Be loaded.
The screw thread of external screw thread 21 and threaded hole 111 can be the screw thread of the prior art, such as triangle thread and trapezoidal spiral shell
Line.The screw thread of external screw thread 21 and threaded hole 111 is preferably the special screw thread of inner propping collet operating condition, specific as follows: threaded hole 111
Be triangle with the thread segment of external screw thread 21, two inclined-planes in the section are the first bevel edge and the second bevel edge, the first bevel edge with
The angle of the axis of threaded hole 111 is a, and 10 °≤a≤30 °, the angle of the axis of the second bevel edge and threaded hole 111 is b, 45 °≤
b≤90°；First bevel edge of the thread segment of threaded hole 111 is towards pulling portion 12.Above-mentioned the first bevel edge of screw thread angle is small, pulls
When housing 1, the radial component that mandrel 2 gives housing 1 is big, conducive to the expanding force for improving inner propping collet.
Pulling portion 12 is pulled in order to facilitate, drawing flange 121 is provided in pulling portion 12.Pulling device can clasp
Flange 121 is pulled, pulls pulling portion 12 to facilitate.
Claims (3)
1. a kind of inner propping collet, it is characterised in that: including housing (1) and mandrel (2)；Housing (1) includes rising portion (11) and to lead outside
Drawing portion (12), portion (11) outer surface of rising outside are supporting surface (112), rise by portion (11) outside with the screw thread coaxial with supporting surface (112)
Hole (111) has at least two first deformations extended in pulling portion (12) by portion of rising outside (11) end face axial on housing (1)
Slot (13) and at least two second deformations slot (14) that outer portion (11) end face of rising is extended close to by pulling portion (12) end face axial,
First deformation slot (13) and second deforms slot (14) and is arranged alternately and circumference uniform distribution；Have on mandrel (2) suitable with threaded hole (111)
The external screw thread (21) matched, external screw thread (21) are connect with threaded hole (111).
2. a kind of inner propping collet according to claim 1, it is characterised in that: the spiral shell of threaded hole (111) and external screw thread (21)
Line section is triangle, and two inclined-planes in the section are the first bevel edge and the second bevel edge, the axis of the first bevel edge and threaded hole (111)
The angle of line is a, and 10 °≤a≤30 °, the angle of the axis of the second bevel edge and threaded hole (111) is b, 45 °≤b≤90 °；Screw thread
First bevel edge of the thread segment in hole (111) is towards pulling portion (12).
3. a kind of inner propping collet according to claim 2, it is characterised in that: pulling portion is provided with drawing flange on (12)
(121)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821078773.1U CN208528922U (en) | 2018-07-09 | 2018-07-09 | A kind of inner propping collet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821078773.1U CN208528922U (en) | 2018-07-09 | 2018-07-09 | A kind of inner propping collet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208528922U true CN208528922U (en) | 2019-02-22 |
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ID=65386984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821078773.1U Active CN208528922U (en) | 2018-07-09 | 2018-07-09 | A kind of inner propping collet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208528922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608352A (en) * | 2018-07-09 | 2018-10-02 | 森泰英格（成都）数控刀具股份有限公司 | A kind of inner propping collet |
-
2018
- 2018-07-09 CN CN201821078773.1U patent/CN208528922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608352A (en) * | 2018-07-09 | 2018-10-02 | 森泰英格（成都）数控刀具股份有限公司 | A kind of inner propping collet |
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