CN105382287A - Reducing hole interior tensioning device - Google Patents
Reducing hole interior tensioning device Download PDFInfo
- Publication number
- CN105382287A CN105382287A CN201510783352.3A CN201510783352A CN105382287A CN 105382287 A CN105382287 A CN 105382287A CN 201510783352 A CN201510783352 A CN 201510783352A CN 105382287 A CN105382287 A CN 105382287A
- Authority
- CN
- China
- Prior art keywords
- reducing hole
- cylinder
- cavity
- push rod
- ball
- 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.)
- Pending
Links
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
- B23B31/4073—Gripping the work or tool between planes almost perpendicular to the axis
Abstract
The invention relates to a reducing hole interior tensioning device. The reducing hole interior tensioning device comprises a shell. The shell comprises a nut, an upper cylinder and a lower cylinder which are sequentially connected. A cavity is formed in the shell. An ejector rod is arranged in the cavity. One end of the ejector rod penetrates the nut and enters the cavity. The ejector rod and the shell are fixed through a pin. Grooves are formed in the outer walls of the two sides of the lower cylinder. Balls are arranged in the grooves. When the shell is subjected to tensioning force, the upper top faces and the lower bottom faces of the grooves extrude the balls, meanwhile, the ejector rod is stressed and outwards recedes out of the balls, and the balls protrude out. By means of the manner, the reducing hole interior tensioning device is simple in structure, tight and stable in fixing, convenient to use and rapid in taking.
Description
Technical field
The present invention relates to the improvement of swelling device in a kind of reducing hole, especially relate to a kind of structure simple; Fixing compact, stable; Easy to use, swelling device in reducing hole fast of taking.
Background technology
Pipe in machinery, sleeve workpiece, as various bearing holder (housing, cover), gear and belt wheel etc., are widely used parts in producing.The main finished surface of pipe, sleeve workpiece is endoporus, cylindrical and end face.Then pipe, sleeve workpiece often carry out cylindrical and end face processing with Internal hole positioning.In usual employing reducing hole, swelling device fixes, but in existing reducing hole, tensioner apparatus structure is complicated, fixing not tight.
Summary of the invention
It is simple that technical problem to be solved by this invention is to provide a kind of structure; Fixing compact, stable; Easy to use, swelling device in reducing hole fast of taking.
The technical solution adopted for the present invention to solve the technical problems is: swelling device in a kind of reducing hole, comprising: housing; Described housing comprises: the nut connected successively, upper cylinder and lower cylinder; Described enclosure interior is provided with cavity; Push rod is provided with in described cavity; Described push rod one end enters in cavity through nut; Described push rod and housing are fixed by pin; Described lower cylinder both sides outer wall is provided with groove; Ball is provided with in described groove; When housing is subject to expanding force, the upper end face of groove and bottom surface extruding ball, push rod is stressed simultaneously outwards exits ball, and ball is protruded.
Preferably, described pin does not protrude surface of shell.
Preferably, the overall diameter of described upper cylinder is less than the overall diameter of lower cylinder.
Preferably, described push rod is positioned at cylinder place and is provided with projection; Cylinder is positioned at and lower cylinder junction is provided with step in described cavity; Spring is provided with between described step and projection.
The invention has the beneficial effects as follows: swelling device in a kind of reducing hole of the present invention, structure is simple; Fixing compact, stable; Easy to use, take fast.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of swelling device in a kind of reducing hole of the present invention;
Wherein: 1, housing; 2, nut; 3, upper cylinder; 4, push rod; 5, ball; 6, lower cylinder; 7, sell; 8, bottom surface; 9, upper end face; 10, groove; 11, spring.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Refer to Fig. 1, the embodiment of the present invention comprises:
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is swelling device in a kind of reducing hole, comprising: housing 1; Described housing 1 comprises: the nut 2 connected successively, upper cylinder 3 and lower cylinder 6; Described housing 1 inside is provided with cavity; Push rod 4 is provided with in described cavity; Described push rod 4 one end enters in cavity through nut 2; Described push rod 4 is fixed by pin 7 with housing 1; Described pin 7 does not protrude housing 1 outer surface; Described lower cylinder 6 both sides outer wall is provided with groove 10; Ball 5 is provided with in described groove 10; When housing 1 is subject to expanding force, upper end face 9 and the bottom surface 8 of groove 10 extrude ball 5, and the stressed extrapolated ball 5 of push rod 4, makes ball 5 protrude simultaneously; The overall diameter of described upper cylinder 3 is less than the overall diameter of lower cylinder 6; Described push rod 1 is positioned at cylinder 3 place and is provided with projection; Be positioned at cylinder 3 in described cavity and be provided with step with lower cylinder 6 junction; Spring 11 is provided with between described step and projection.
During installation, upper cylinder 3 is inserted in hole with lower cylinder 6, the bottom in the bottom surface of housing and hole is offseted, then tightening nut 2, when housing is subject to expanding force, upper end face 9 and the bottom surface 8 of groove extrude ball 5, push rod 4 is stressed simultaneously outwards exits ball 5, and ball 5 is protruded; Ball 5 protrudes and hole inwall is close to, and makes device be fixed in hole, does not rock; Otherwise, during dismounting, unclamp nut 2, this device can be taken out, quick and convenient.
Meanwhile, by changing the ball of a series of different size in certain diameter, this device can be used in combination with the hole of different inner diameters.This device can be used for measuring the cubing inside such as the degree of depth fixing of holes distance, measured hole, and fixed cylinder structure combines and closely do not rock in hole.
The invention has the beneficial effects as follows: swelling device in a kind of reducing hole of the present invention, structure is simple; Fixing compact, stable; Easy to use, take fast.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within rights protection scope of the present invention.
Claims (4)
1. a swelling device in reducing hole, comprising: housing; It is characterized in that: described housing comprises: the nut connected successively, upper cylinder and lower cylinder; Described enclosure interior is provided with cavity; Push rod is provided with in described cavity; Described push rod one end enters in cavity through nut; Described push rod and housing are fixed by pin; Described lower cylinder both sides outer wall is provided with groove; Ball is provided with in described groove; When housing is subject to expanding force, the upper end face of groove and bottom surface extruding ball, push rod is stressed simultaneously outwards exits ball, and ball is protruded.
2. swelling device in reducing hole according to claim 1, is characterized in that: described pin does not protrude surface of shell.
3. swelling device in reducing hole according to claim 2, is characterized in that: the overall diameter of described upper cylinder is less than the overall diameter of lower cylinder.
4. swelling device in reducing hole according to claim 3, is characterized in that: described push rod is positioned at cylinder place and is provided with projection; Cylinder is positioned at and lower cylinder junction is provided with step in described cavity; Spring is provided with between described step and projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783352.3A CN105382287A (en) | 2015-11-16 | 2015-11-16 | Reducing hole interior tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783352.3A CN105382287A (en) | 2015-11-16 | 2015-11-16 | Reducing hole interior tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105382287A true CN105382287A (en) | 2016-03-09 |
Family
ID=55415423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783352.3A Pending CN105382287A (en) | 2015-11-16 | 2015-11-16 | Reducing hole interior tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105382287A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811369Y (en) * | 2005-06-03 | 2006-08-30 | 广东好太太环保科技有限公司 | Clothes hanger |
| US20070001408A1 (en) * | 2005-07-01 | 2007-01-04 | Jergens, Inc. | Release pin |
| CN202278208U (en) * | 2011-08-18 | 2012-06-20 | 安徽白兔湖汽配有限公司 | Automatic clamp for turning cylinder sleeve |
| CN202317098U (en) * | 2011-11-02 | 2012-07-11 | 新魁液压技术有限公司 | Steel ball centering inner hole expanding clamp |
| CN202804738U (en) * | 2012-10-15 | 2013-03-20 | 陈建丰 | Inner expansion head inside pipe |
| CN204366087U (en) * | 2014-12-24 | 2015-06-03 | 重庆元创自动化设备有限公司 | Swelling clamping device in pipe fitting |
| CN205165938U (en) * | 2015-11-16 | 2016-04-20 | 苏州市职业大学 | Variable - diameter hole internal expanding tightly installs |
-
2015
- 2015-11-16 CN CN201510783352.3A patent/CN105382287A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811369Y (en) * | 2005-06-03 | 2006-08-30 | 广东好太太环保科技有限公司 | Clothes hanger |
| US20070001408A1 (en) * | 2005-07-01 | 2007-01-04 | Jergens, Inc. | Release pin |
| CN202278208U (en) * | 2011-08-18 | 2012-06-20 | 安徽白兔湖汽配有限公司 | Automatic clamp for turning cylinder sleeve |
| CN202317098U (en) * | 2011-11-02 | 2012-07-11 | 新魁液压技术有限公司 | Steel ball centering inner hole expanding clamp |
| CN202804738U (en) * | 2012-10-15 | 2013-03-20 | 陈建丰 | Inner expansion head inside pipe |
| CN204366087U (en) * | 2014-12-24 | 2015-06-03 | 重庆元创自动化设备有限公司 | Swelling clamping device in pipe fitting |
| CN205165938U (en) * | 2015-11-16 | 2016-04-20 | 苏州市职业大学 | Variable - diameter hole internal expanding tightly installs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160309 |
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| RJ01 | Rejection of invention patent application after publication |