CN211965969U - Outer expansion chuck adaptable to different excircle clamping - Google Patents
Outer expansion chuck adaptable to different excircle clamping Download PDFInfo
- Publication number
- CN211965969U CN211965969U CN202020476187.3U CN202020476187U CN211965969U CN 211965969 U CN211965969 U CN 211965969U CN 202020476187 U CN202020476187 U CN 202020476187U CN 211965969 U CN211965969 U CN 211965969U
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- Prior art keywords
- outer cone
- hole
- chuck
- guide pin
- clamping
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- Expired - Fee Related
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- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Abstract
The utility model discloses a tight chuck of outer bloated of adaptable different excircle clamp, including the chuck sleeve of rear end area coupling flange, the telescopic front end hole of chuck is the bell mouth, and the axial activity is equipped with outer cone in the bell mouth, and the axial pull rod is connected to the rear end of outer cone, and the front end of outer cone is equipped with the cylinder hole, its characterized in that: a plurality of guide pin holes are circumferentially distributed on the hole wall of the cylindrical hole, clamping guide pins are movably arranged in the guide pin holes, and the upper ends of the clamping guide pins penetrate through the outer cone and then face the conical hole wall of the conical hole; when the outer cone body is pulled backwards, the conical hole wall of the conical hole pushes the clamping guide pin to perform inward radial action, so that the outer circle of the workpiece is clamped. The utility model discloses can be used to the clamp of different excircle work pieces tightly, simple structure, the commonality is strong, saves chuck purchase cost and administrative cost.
Description
Technical Field
The utility model relates to an outer tight chuck that expands that is used for work piece excircle to press from both sides tightly.
Background
The outer expansion chuck is used for clamping the excircle of a workpiece and is a common tool for realizing the processing production of the inner hole of the workpiece. In the prior art, an external expansion chuck of one specification can only be generally suitable for a workpiece with one excircle size, the universality is poor, and the purchase cost and the management cost of the external expansion chuck are higher.
Disclosure of Invention
In view of the not enough of background art, the utility model aims at providing a tight chuck that expands outward that can be used to the clamp of different excircle work pieces, simple structure, the commonality is strong, saves chuck purchase cost and administrative cost's adaptable different excircles clamp.
The utility model adopts the following technical proposal to complete:
the tight chuck that expands outward that adaptable different excircles are tight, including the chuck sleeve of rear end area flange, the telescopic front end hole of chuck is the bell mouth, and the axial activity is equipped with outer cone in the bell mouth, and the rear end of outer cone is connected the axial pull rod, and the front end of outer cone is equipped with cylinder hole, its characterized in that: a plurality of guide pin holes are circumferentially distributed on the hole wall of the cylindrical hole, clamping guide pins are movably arranged in the guide pin holes, and the upper ends of the clamping guide pins penetrate through the outer cone and then face the conical hole wall of the conical hole; when the outer cone body is pulled backwards, the conical hole wall of the conical hole pushes the clamping guide pin to perform inward radial action, so that the outer circle of the workpiece is clamped.
The outer expansion clamping head of the technical scheme has the working principle that: when the inner hole of the workpiece is machined, firstly, the excircle of the workpiece is sleeved into the cylindrical hole at the front end of the outer cone, then the axial pull rod is pulled backwards, the outer cone moves backwards simultaneously, the clamping guide pin moves inwards in a radial direction under the pushing action of the conical hole wall of the conical hole until the excircle of the workpiece is propped against to clamp the workpiece, and then the inner hole of the workpiece can be machined; after the inner hole of the workpiece is machined, the axial pull rod is pushed forwards, the outer cone simultaneously moves forwards, the clamping guide pin loosens the clamping of the outer circle of the workpiece, and after the workpiece is taken down, the clamping guide pin returns to the original position, and the inner hole of the next workpiece can be machined. Above-mentioned in-process, no matter how the excircle size of work piece changes in certain extent, press from both sides tight guide pin and can both carry out the excircle to the work piece and press from both sides tightly, and then realize the clamp to different excircle work pieces, the commonality is strong, effectively saves the purchase cost and the administrative cost of chuck.
Preferably, the guide pin hole is formed in the guide sleeve, the guide sleeve is fixed on the outer cone body, the guide sleeve is made of a permanent magnet, and the clamping guide pin is made of magnetic metal. The clamping guide pin can be pushed upwards to return to the original position through the clamping guide pin, and the clamping guide pin after returning cannot automatically pop outwards due to the magnetic adsorption of the guide pin sleeve, so that the structure is very simple, and the design is ingenious.
Drawings
The utility model discloses there is following figure:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in the figures, the utility model discloses an outer bloated tight chuck of adaptable different excircle clamps, including chuck sleeve 1 of rear end area coupling flange 8, the front end hole of chuck sleeve 1 is bell mouth 2, the axial activity is equipped with outer cone 3 in the bell mouth 2, outer cone 3 has the same tapering with bell mouth 2, the rear end of outer cone 3 passes through screw hole 9 and connects the axial pull rod, the axial pull rod can be promoted by the pull rod cylinder at the during operation, the front end of outer cone 3 is equipped with cylinder hole 4, six guide pin holes 7 are laid to the pore wall circumference of cylinder hole 4, the activity is packed into in the guide pin hole 7 and is pressed from both sides tight guide pin 5, the upper end that presss from both sides tight guide pin 5 pierces through the conical pore wall of bell mouth 2 after outer cone 3, guide pin hole 7 is located in uide bushing 6, uide bushing 6 is fixed in outer cone 3, uide bushing 6 adopts the permanent; when the outer cone 3 is pulled backwards, the conical hole wall of the conical hole 2 pushes the clamping guide pin 5 to perform inward radial action, so that the outer circle of the workpiece is clamped.
Claims (2)
1. The tight chuck that expands outward that adaptable different excircles are tight, including the chuck sleeve of rear end area flange, the telescopic front end hole of chuck is the bell mouth, and the axial activity is equipped with outer cone in the bell mouth, and the rear end of outer cone is connected the axial pull rod, and the front end of outer cone is equipped with cylinder hole, its characterized in that: a plurality of guide pin holes are circumferentially distributed on the hole wall of the cylindrical hole, clamping guide pins are movably arranged in the guide pin holes, and the upper ends of the clamping guide pins penetrate through the outer cone and then face the conical hole wall of the conical hole; when the outer cone body is pulled backwards, the conical hole wall of the conical hole pushes the clamping guide pin to perform inward radial action, so that the outer circle of the workpiece is clamped.
2. The external expansion chuck capable of adapting to different external circle clamping as claimed in claim 1, wherein: the guide pin hole is arranged in the guide sleeve, the guide sleeve is fixed on the outer cone body, the guide sleeve is made of a permanent magnet, and the clamping guide pin is made of magnetic metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476187.3U CN211965969U (en) | 2020-04-03 | 2020-04-03 | Outer expansion chuck adaptable to different excircle clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476187.3U CN211965969U (en) | 2020-04-03 | 2020-04-03 | Outer expansion chuck adaptable to different excircle clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211965969U true CN211965969U (en) | 2020-11-20 |
Family
ID=73382297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020476187.3U Expired - Fee Related CN211965969U (en) | 2020-04-03 | 2020-04-03 | Outer expansion chuck adaptable to different excircle clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211965969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266616A (en) * | 2020-04-03 | 2020-06-12 | 浙江聚利电动工具有限公司 | Outer expansion chuck adaptable to different excircle clamping |
-
2020
- 2020-04-03 CN CN202020476187.3U patent/CN211965969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266616A (en) * | 2020-04-03 | 2020-06-12 | 浙江聚利电动工具有限公司 | Outer expansion chuck adaptable to different excircle clamping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |