CN109954899B - Floating inner expansion sleeve - Google Patents
Floating inner expansion sleeve Download PDFInfo
- Publication number
- CN109954899B CN109954899B CN201810053344.7A CN201810053344A CN109954899B CN 109954899 B CN109954899 B CN 109954899B CN 201810053344 A CN201810053344 A CN 201810053344A CN 109954899 B CN109954899 B CN 109954899B
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- floating
- sleeve bodies
- parts
- bodies
- 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.)
- Active
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 29
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/4006—Gripping the work or tool by a split sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a floating inner expansion sleeve, which comprises a plurality of expansion sleeve bodies, floating claws and a connecting piece, wherein the connecting piece connects the expansion sleeve bodies to form a revolving body, the floating claws are arranged on the outer sides of the expansion sleeve bodies, the inner sides of the expansion sleeve bodies are provided with circular arc surfaces, a cylindrical hole is formed in the middle of the expansion sleeve bodies after the expansion sleeve bodies are connected, the expansion sleeve bodies comprise upper parts and lower parts, grooves are formed in the middle of the upper parts and the lower parts, the diameter of the section of the lower parts is larger than that of the section of the upper parts, the upper parts are provided with floating claw mounting grooves, the thickness of the floating claws is larger than the width of the floating claw mounting grooves, and the connecting piece is made of elastic materials. The invention is in multipoint floating contact with the expansion sleeve, and automatically adjusts the stress according to the roundness, so as to reduce the deformation, thereby greatly improving the concentricity and the roundness of the outer diameter after processing.
Description
Technical Field
The invention relates to a tensioning clamp part, in particular to a floating inner tensioning sleeve.
Background
When the ovality of the inner hole of the powder metallurgy part blank is larger and the outer diameter is processed by taking the ovality as a reference, the inner hole of the workpiece is changed from oval to perfect circle after internal expansion, and the workpiece is restored to the original oval state after being taken down, so that the roundness cannot be improved.
Disclosure of Invention
Therefore, the embodiment of the invention provides the floating inner expansion sleeve, which is stressed according to roundness adjustment, reduces deformation and greatly improves concentricity and outer diameter roundness of the machined part.
The invention discloses a floating inner expansion sleeve, which comprises a plurality of expansion sleeve bodies, floating claws and a connecting piece, wherein the connecting piece connects the expansion sleeve bodies to form a revolving body, the floating claws are arranged on the outer sides of the expansion sleeve bodies, the inner sides of the expansion sleeve bodies are provided with circular arc surfaces, a cylindrical hole is formed in the middle of the expansion sleeve bodies after the expansion sleeve bodies are connected, the expansion sleeve bodies comprise upper parts and lower parts, grooves are formed in the middle of the upper parts and the lower parts, the diameter of the section of the lower parts is larger than that of the section of the upper parts, the upper parts are provided with floating claw mounting grooves, the thickness of the floating claws is larger than the width of the floating claw mounting grooves, and the connecting piece is made of elastic materials.
Further, the connecting piece is made of connecting rubber.
Further, the floating claw is evenly divided into 3 parts, and the middle part of the floating claw is a groove.
Further, the upper plane of the floating claw is higher than the upper plane of the expansion sleeve body.
Further, the connecting surfaces of the expansion sleeve body and the floating claw are all arc surfaces.
Further, the number of the expansion sleeve bodies is 3.
The invention is in multipoint floating contact with the expansion sleeve, and automatically adjusts the stress according to the roundness, so as to reduce the deformation, thereby greatly improving the concentricity and the roundness of the outer diameter after processing.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 2 in accordance with an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, the floating inner expansion sleeve disclosed by the invention comprises a plurality of expansion sleeve bodies 1, floating claws 2 and connecting pieces 3, wherein the connecting pieces 3 are used for connecting the expansion sleeve bodies 1 to form a revolving body, the floating claws 2 are arranged on the outer sides of the expansion sleeve bodies 1, the inner sides of the expansion sleeve bodies 1 are provided with arc surfaces, cylindrical holes 4 are formed in the middle of the expansion sleeve bodies after the expansion sleeve bodies are connected, the expansion sleeve bodies 1 comprise an upper part 11 and a lower part 12, a groove 13 is formed between the upper part 11 and the lower part 12, the diameter of the section of the lower part is larger than that of the upper part, the upper part 11 is provided with floating claw mounting grooves 111, the thickness of the floating claws 2 is larger than the width of the floating claw mounting grooves 111, and the connecting pieces 3 are made of elastic materials. Is in multi-point floating contact with the expansion sleeve. And the connecting piece is stressed according to roundness adjustment, so that deformation is reduced, and concentricity and outer diameter roundness after processing are improved greatly.
In one embodiment of the invention, the connecting member 3 is a connecting rubber. The rubber is elastic and can play a role in connection.
In one embodiment of the invention, the floating jaw 2 is evenly divided into 3 parts, and the middle part of the floating jaw is a groove 21. The grooves are convenient for reserving space during extrusion deformation.
In one embodiment of the invention, the upper plane of the floating jaw 2 is higher than the upper plane of the expansion shell.
In an embodiment of the present invention, the connection surfaces of the expansion sleeve body 1 and the floating claw 2 are all arc surfaces.
In one embodiment of the invention, the expansion sleeve body 1 is provided with 3 expansion sleeve bodies. The 3 expansion sleeve bodies 1 form a floating inner expansion sleeve.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is to be construed as including any modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. The floating inner expansion sleeve is characterized by comprising a plurality of expansion sleeve bodies, floating claws and connecting pieces, wherein the connecting pieces are used for connecting the expansion sleeve bodies and forming a revolving body, the floating claws are arranged on the outer sides of the expansion sleeve bodies, circular arc surfaces are arranged on the inner sides of the expansion sleeve bodies, cylindrical holes are formed in the middle of the expansion sleeve bodies after the expansion sleeve bodies are connected, the expansion sleeve bodies comprise upper parts and lower parts, connecting grooves are formed in the middle of the upper parts and the lower parts, the diameter of the section of the lower parts is larger than that of the upper parts, floating claw mounting grooves are formed in the upper parts, the thickness of each floating claw is larger than that of each floating claw mounting groove, the connecting pieces are made of elastic materials, each floating claw is uniformly divided into 3 parts, the middle parts of each floating claw are grooves, a reserved space is reserved when the grooves are convenient to squeeze and deform, the upper plane of each floating claw is higher than the upper plane of the expansion sleeve bodies, and the connecting surfaces of the expansion sleeve bodies and the floating claws are circular arc surfaces.
2. The floating inner tension sleeve of claim 1, wherein the connecting member is a connecting rubber.
3. The floating inner tension sleeve of claim 1, wherein there are 3 expansion sleeve bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053344.7A CN109954899B (en) | 2018-01-19 | 2018-01-19 | Floating inner expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053344.7A CN109954899B (en) | 2018-01-19 | 2018-01-19 | Floating inner expansion sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109954899A CN109954899A (en) | 2019-07-02 |
| CN109954899B true CN109954899B (en) | 2024-03-01 |
Family
ID=67023079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053344.7A Active CN109954899B (en) | 2018-01-19 | 2018-01-19 | Floating inner expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109954899B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447731A (en) * | 2000-11-22 | 2003-10-08 | 海因布赫夹紧技术股份有限公司 | Chuck with a locking mechanism |
| KR20050080363A (en) * | 2004-02-09 | 2005-08-12 | 김진곤 | Device for absorbing elasticity deformation of lathe chuck mounting in machine tool |
| CN102266957A (en) * | 2011-07-20 | 2011-12-07 | 江苏上汽汽车同步器厂 | Inner expansion type clamp for thin-wall part |
| CN202461576U (en) * | 2012-01-17 | 2012-10-03 | 兴平市东龙工具制造有限公司 | Expansion sleeve |
| CN102921984A (en) * | 2012-11-25 | 2013-02-13 | 段晓旭 | Positioning mandrel device |
| CN203471083U (en) * | 2013-08-09 | 2014-03-12 | 内江神舟机电设备有限公司 | Inner centering tensioning clamp |
| CN207857891U (en) * | 2018-01-19 | 2018-09-14 | 苏州遇之合工装夹具有限公司 | Floating inner expanding sleeve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201271745Y (en) * | 2008-09-05 | 2009-07-15 | 苏州勤美达精密机械有限公司 | Bidirectional floating holding jaw |
| CN201565628U (en) * | 2009-11-06 | 2010-09-01 | 天津市永恒电机厂 | Expanding tire for processing spigot of motor shell |
| CN203335548U (en) * | 2013-06-04 | 2013-12-11 | 龙岩烟草工业有限责任公司 | Locating device for protective plate of cigarette conveying channel |
| DE102013217401B3 (en) * | 2013-09-02 | 2014-12-11 | Ringspann Gmbh | jig |
| CN203635975U (en) * | 2013-11-03 | 2014-06-11 | 西安志越机电科技有限公司 | Outer thread turning clamping device for taper-lock external-expanded type thin-walled workpiece |
| CN104607681A (en) * | 2013-11-03 | 2015-05-13 | 西安志越机电科技有限公司 | Thin-wall round pipe turning and clamping device |
| CN205393592U (en) * | 2016-02-29 | 2016-07-27 | 浙江金驰机械有限公司 | Expansion sleeve clamp |
-
2018
- 2018-01-19 CN CN201810053344.7A patent/CN109954899B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447731A (en) * | 2000-11-22 | 2003-10-08 | 海因布赫夹紧技术股份有限公司 | Chuck with a locking mechanism |
| KR20050080363A (en) * | 2004-02-09 | 2005-08-12 | 김진곤 | Device for absorbing elasticity deformation of lathe chuck mounting in machine tool |
| CN102266957A (en) * | 2011-07-20 | 2011-12-07 | 江苏上汽汽车同步器厂 | Inner expansion type clamp for thin-wall part |
| CN202461576U (en) * | 2012-01-17 | 2012-10-03 | 兴平市东龙工具制造有限公司 | Expansion sleeve |
| CN102921984A (en) * | 2012-11-25 | 2013-02-13 | 段晓旭 | Positioning mandrel device |
| CN203471083U (en) * | 2013-08-09 | 2014-03-12 | 内江神舟机电设备有限公司 | Inner centering tensioning clamp |
| CN207857891U (en) * | 2018-01-19 | 2018-09-14 | 苏州遇之合工装夹具有限公司 | Floating inner expanding sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109954899A (en) | 2019-07-02 |
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