CN201102081Y - Elastic expansion central spindle for machine work - Google Patents
Elastic expansion central spindle for machine work Download PDFInfo
- Publication number
- CN201102081Y CN201102081Y CNU2007201928573U CN200720192857U CN201102081Y CN 201102081 Y CN201102081 Y CN 201102081Y CN U2007201928573 U CNU2007201928573 U CN U2007201928573U CN 200720192857 U CN200720192857 U CN 200720192857U CN 201102081 Y CN201102081 Y CN 201102081Y
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- CN
- China
- Prior art keywords
- mandrel body
- mandrel
- cylindrical end
- central passage
- square
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a distensible mandrel used for machining. The mandrel comprises a mandrel body, an elastic sleeve, steel balls, a pressure plate and a square-headed hold-down bolt, wherein, the mandrel body includes a mandrel body conical end and a mandrel body cylindrical end, a central channel is arranged in the center of the mandrel body cylindrical end, the mandrel body cylindrical end is radially provided with a branch channel communicated with the central channel, a fixed inner screw thread cooperated with the square-headed hold-down bolt is arranged at the entrance of the central channel, the elastic sleeve is a columniform cylinder, a groove is arranged on the inner wall of the columniform cylinder and communicated with the branch channel on the mandrel body, a circular hole cooperated with the central channel is arranged on the bottom of the columniform cylinder, the elastic sleeve is nested on the mandrel body cylindrical end, the square-headed hold-down bolt is mounted on the central channel of the mandrel body, the pressure plate is pushed by the end of the square-headed hold-down bolt, and the steel balls are placed in the central and branch channels of the mandrel body. The positioning precision of the distensible mandrel is high, thus ensuring the requirement on the high proper alignment of the excircle and inner bore of a workpiece, and moreover, the distensible mandrel has the advantages of reliable clamping and flexible and convenient use.
Description
Technical field
The utility model relates to machining equipment, relates in particular to a kind of elasticity swelling mandrel that is used for machining.
Background technology
In the machinery, thin-walled parts is processed, the general anchor clamps that use have two kinds of mechanical clamping type and hydraulic pressure plastic clip stationaries.But they all have weak point separately in actual use.When utilizing the processing thin-walled part of mechanical clamping type, general technology is: the folder cylindrical, face work and endoporus support endoporus, processing excircles and groove with anti-three-jaw then.But in practical operation because the axiality of anti-three-jaw and machine tool chief axis axis can not strict guarantee, and because workpiece wall is thin, support endoporus after, workpiece is yielding, causes the axiality of the cylindrical that processes and endoporus overproof.
Summary of the invention
The purpose of this utility model is the deficiency for the anchor clamps that overcome existing processing thin-walled part, and a kind of elasticity swelling mandrel that is used for machining is provided.
Comprise the mandrel body, resilient sleeve, steel ball, platen, the square toes housing screw, the mandrel body comprises mandrel body cone segments and mandrel body cylindrical end, center, mandrel body cylindrical end end is provided with central passage, mandrel body cylindrical end radially is provided with the subchannel that is connected with central passage, the central passage porch is provided with the fixedly internal thread that matches with the square toes housing screw, resilient sleeve is a cylindrical tube, fluted on the inwall of cylindrical tube, and communicate with subchannel on the mandrel body, the cylindrical tube bottom is provided with the circular hole that matches with central passage, resilient sleeve is enclosed within on the mandrel body cylindrical end, the square toes housing screw is contained on the central passage of mandrel body, there is platen on top, square toes housing screw end, is placed with steel ball in the central passage of mandrel body and the subchannel.
The utility model positioning accuracy height guaranteed excircle of workpiece and the high requirement of endoporus axiality, and clamping is reliable, uses flexible, convenient.
Description of drawings
Fig. 1 is an elasticity swelling mandrel structural representation;
Fig. 2 is a mandrel body structure schematic diagram of the present utility model;
Fig. 3 is a resilient sleeve structural representation of the present utility model;
Fig. 4 is a square toes housing screw structural representation of the present utility model;
Fig. 5 is user mode figure of the present utility model.
Among the figure: mandrel body 1, resilient sleeve 2, steel ball 3, platen 4, square toes housing screw 5, workpiece 6.
The specific embodiment
The elasticity swelling mandrel that is used for machining comprises mandrel body 1, resilient sleeve 2, steel ball 3, platen 4, square toes housing screw 5, mandrel body 1 comprises mandrel body cone segments 1-1 and mandrel body cylindrical end 1-2, center, mandrel body cylindrical end end is provided with central passage 1-3, mandrel body cylindrical end radially is provided with the subchannel 1-4 that is connected with central passage, the central passage arrival end is provided with the fixedly internal thread that matches with square toes housing screw 5, resilient sleeve 2 is a cylindrical tube, fluted 2-1 on the inwall of cylindrical tube, and communicate with subchannel 1-4 on the mandrel body, the cylindrical tube bottom is provided with the circular hole 2-2 that matches with central passage, resilient sleeve 2 is enclosed within on the cylindrical end 1-2 of mandrel body 1, square toes housing screw 5 is contained among the central passage 1-3 of mandrel body 1, there is platen 4 on top, square toes housing screw 5 ends, is placed with steel ball 3 in the central passage 1-3 of mandrel body 1 and the subchannel 1-4.
The course of work of the present utility model: resilient sleeve 2 is contained on the mandrel body cylindrical end 1-2, with the boss in the middle of the mandrel body as axial location, from the inlet of the central passage 1-3 of the mandrel body cylindrical end end an amount of steel ball 3 of packing into, and jiggle, vibration, make steel ball be full of the cavity of mandrel body cylindrical end 1-2 and resilient sleeve groove 2-1 formation, then platen 4 is put into from the inlet of the central passage 1-3 of mandrel body cylindrical end end, again square toes housing screw 5 is screwed in the screw of central passage 1-3 porch of mandrel body cylindrical end ends, at this moment do not twist square toes housing screw 5 too tight, if tightened, refund Liang Quan again.With the mandrel body cone segments 1-1 machine tool chief axis of packing into, the workpiece 6 that will need again to process is contained on the resilient sleeve 2 from mandrel body cylindrical end, as axial location, tightens the square toes housing screw with the boss in the middle of the mandrel body then.At this moment, screwing force has passed to resilient sleeve 2 by platen 4, steel ball 3 equably with power, resilient sleeve 2 stressed dilating, with the workpiece swelling on resilient sleeve 2.The beginning processing work, treat that workpiece is finished after, counter-rotating square toes housing screw 5, pressure relief, resilient sleeve 2 is recovered voluntarily by the elasticity of self, just can take off the workpiece that processes from resilient sleeve 2 like a cork, refills next workpiece and processes.
Claims (1)
1. elasticity swelling mandrel that is used for machining, it is characterized in that comprising mandrel body (1), resilient sleeve (2), steel ball (3), platen (4), square toes housing screw (5), mandrel body (1) comprises mandrel body cone segments (1-1) and mandrel body cylindrical end (1-2), center, mandrel body cylindrical end end is provided with central passage (1-3), mandrel body cylindrical end radially is provided with the subchannel (1-4) that is connected with central passage, the central passage arrival end is provided with the fixedly internal thread that matches with square toes housing screw (5), resilient sleeve (2) is a cylindrical tube, fluted on the inwall of cylindrical tube (2-1), and communicate with subchannel (1-4) on the mandrel body, the cylindrical tube bottom is provided with the circular hole (2-2) that matches with central passage (1-3), resilient sleeve (2) is enclosed within on the cylindrical end (1-2) of mandrel body (1), square toes housing screw (5) is contained in the central passage (1-3) of mandrel body (1), the end of square toes housing screw (5) heads on platen (4), is placed with steel ball (3) in the central passage (1-3) of mandrel body (1) and subchannel (1-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201928573U CN201102081Y (en) | 2007-11-29 | 2007-11-29 | Elastic expansion central spindle for machine work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201928573U CN201102081Y (en) | 2007-11-29 | 2007-11-29 | Elastic expansion central spindle for machine work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102081Y true CN201102081Y (en) | 2008-08-20 |
Family
ID=39949099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201928573U Expired - Fee Related CN201102081Y (en) | 2007-11-29 | 2007-11-29 | Elastic expansion central spindle for machine work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102081Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364184A (en) * | 2015-12-04 | 2016-03-02 | 海宁久久胶塑有限公司 | Sealing ring processing equipment |
| CN107414115A (en) * | 2017-08-18 | 2017-12-01 | 重庆工具厂有限责任公司 | Mandrel that liquid is swollen |
| CN108436123A (en) * | 2018-03-27 | 2018-08-24 | 江苏高精机电装备有限公司 | A kind of fixture suitable for thin-walled parts quick-clamping |
| CN113251892A (en) * | 2021-05-20 | 2021-08-13 | 福建威而特旋压科技有限公司 | High-precision belt pulley runout testing fixture |
-
2007
- 2007-11-29 CN CNU2007201928573U patent/CN201102081Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364184A (en) * | 2015-12-04 | 2016-03-02 | 海宁久久胶塑有限公司 | Sealing ring processing equipment |
| CN107414115A (en) * | 2017-08-18 | 2017-12-01 | 重庆工具厂有限责任公司 | Mandrel that liquid is swollen |
| CN108436123A (en) * | 2018-03-27 | 2018-08-24 | 江苏高精机电装备有限公司 | A kind of fixture suitable for thin-walled parts quick-clamping |
| CN113251892A (en) * | 2021-05-20 | 2021-08-13 | 福建威而特旋压科技有限公司 | High-precision belt pulley runout testing fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |