CN103465220B - The instrument of hollow pins of choosing - Google Patents
The instrument of hollow pins of choosing Download PDFInfo
- Publication number
- CN103465220B CN103465220B CN201310465221.1A CN201310465221A CN103465220B CN 103465220 B CN103465220 B CN 103465220B CN 201310465221 A CN201310465221 A CN 201310465221A CN 103465220 B CN103465220 B CN 103465220B
- Authority
- CN
- China
- Prior art keywords
- elastic card
- card cylinder
- pull bar
- core
- choosing
- 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
Links
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Portable Nailing Machines And Staplers (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a kind of instrument of hollow pins of choosing, comprise elastic card cylinder, the core that rises, pull bar, sliding hammer and nut, nut is equipped with in pull bar upper end, and sliding hammer is installed on pull bar, can freely up and down slide, described elastic card cylinder is barrel-shaped, and Open Side Down is contained in pull bar bottom for elastic card cylinder, and its openend is provided with circumferentially equally distributed multiple axial groove, openend outer rim is outwardly, form a back taper ring-shaped platform, elastic card cylinder central upper portion has a circular hole, and pull bar passes from circular hole; Suit one rises core in described elastic card cylinder, and core top of rising is cylindrical, and bottom is truncated cone-shaped, and the bottom surface diameter of round platform is greater than elastic card cylinder internal diameter, and upper bottom surface diameter is less than elastic card cylinder internal diameter, and the upper end of the core that rises is connected with pull bar lower end by screw.The present invention not only can choose and exceed the alignment pin of part, heavy hole inner position pin of also can choosing, and also can be used for chooses is bumped into the thin-wall sleeve of different depth in part.
Description
Technical field
The present invention relates to Automatic manual transmission and maintenance field, particularly relate to a kind of instrument of hollow pins of choosing.
Background technology
At present, during machine assembling, alignment pin between part, is usually adopted to position, accurate to ensure the position of each part.Alignment pin generally will be pressed in one of them part, makes to form interference fit between them.When machine is dismantled, choosing of alignment pin is a difficult job.
The existing alignment pin method of choosing has several as follows:
1, when pin-and-hole is through hole, from part back side cylindrical tool, alignment pin can be launched.
2, pin-and-hole is blind hole, though or for through hole cannot launch smoothly from the back side time, a screw can be processed at alignment pin end face, then be extracted with pin pulling tool.The such as patent No. be 200720110752.9 invention " pin removal " be just used to this kind of alignment pin of choosing.
3, for hollow alignment pin can adopt the patent No. be 99255287.7 invention " tool for pulling out locating pin " choose.This instrument can be chosen hollow alignment pin, solid alignment pin of also can choosing, and principle is the chucking power acting on alignment pin cylindrical outer surface by the resilient sleeve frictional force work that produces.But there are some problems: 1) alignment pin must exceed part certain altitude; 2) easily can not pull out alignment pin because of skidding in this tool work, work unreliable; 3) chucking power large easy damaged alignment pin working face, also can cause pin to be out of shape to hollow alignment pin.In addition, this instrument is also not too applicable to the alignment pin that diameter is larger.
In addition, machine components are everlasting in hole when assembling and are adopted interference fit to be bumped into thin-wall sleeve, this thin-wall sleeve need be taken out when keeping in repair.Can pull out vertically with instrument there being the thin-wall sleeve of stress point, to the thin-wall sleeve not having stress point, thin-wall sleeve particularly in blind hole then can not adopt the method to solve, in actual production, cover excises by usual machining process, or take out after cutting a shaft orientation opening groove with emery wheel on cover, the as easy as rolling off a log damage bottom outlet of these methods causes part to destroy.
Summary of the invention
The technical problem to be solved in the present invention is: the instrument providing a kind of hollow pins of choosing, in order to hollow alignment pin and the thin-wall sleeve that is bumped in part of choose (though or cannot launch smoothly from the back side for through hole) in blind hole.
To achieve these goals, the technical solution used in the present invention is: the instrument of hollow pins of choosing, comprise sliding hammer, pull bar and elastic card cylinder, Open Side Down is contained in pull bar bottom for elastic card cylinder, it is characterized in that: described elastic card cylinder is barrel-shaped, its openend is provided with circumferentially equally distributed multiple axial groove, and openend outer rim is outwardly, the shape ring-shaped platform in back taper in aggregates, elastic card cylinder central upper portion has the circular hole passed for pull bar; Suit one rises core in described elastic card cylinder, and core top of rising is cylindrical, and bottom is truncated cone-shaped, and the bottom surface diameter of round platform is greater than elastic card cylinder internal diameter, and upper bottom surface diameter is less than elastic card cylinder internal diameter, and the upper end of the core that rises is connected with pull bar lower end by screw.
Described ring-shaped platform exceeds elastic card drum outer wall 1 ~ 2mm.
Described pull bar threaded upper ends connects a nut.
Described sliding hammer is spindle, and center is a through hole.
The beneficial effect that the present invention brings is: purposes of the present invention is comparatively wide, not only can choose and exceed the alignment pin of part, heavy hole inner position pin of also can choosing, and also can be used for chooses is bumped into the thin-wall sleeve of different depth in part.The method of this hollow pins of choosing adopts axial force work, avoids the injury of clamping force to alignment pin surface.The method is applicable to hollow alignment pin or the thin-wall sleeve that diameter is greater than 10mm.This instrument low cost of manufacture, simple to operate, safe and practical, be the standing instrument that Automatic manual transmission and maintenance personal are desirable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, nut, 2, sliding hammer, 3, pull bar, 4, elastic card cylinder, 5, hollow alignment pin, 6, rise core.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1, an instrument for hollow pins of choosing, comprise elastic card cylinder 4, pull bar 3, sliding hammer 2 and nut 1, nut 1 is connected with the threaded upper ends of pull bar 3, sliding hammer 2 is installed on pull bar 3, can freely up and down slide, described elastic card cylinder 4 is barrel-shaped, and Open Side Down is contained in pull bar 3 bottom, its openend is provided with circumferentially equally distributed some axial grooves, openend outer rim is outwardly, forms a back taper ring-shaped platform, and described ring-shaped platform exceeds elastic card cylinder 4 outer wall 1 ~ 2mm.Elastic card cylinder 4 central upper portion has a circular hole, and pull bar 3 passes from circular hole; In described elastic card cylinder 4, suit one rises core 6, and core 6 top of rising is cylindrical, and bottom is truncated cone-shaped, the bottom surface diameter of round platform is greater than elastic card cylinder 4 internal diameter, upper bottom surface diameter is less than elastic card cylinder 4 internal diameter, and the upper end center of the core 6 that rises has a screw, is connected with pull bar 3 lower end by screw.As preferably, described pull bar 3 lower end diameter is less, and pull bar 3 both ends are equipped with external screw thread, and pull bar 3 is connected with nut 1 and the core 6 that rises by external screw thread.Described sliding hammer 2 is in spindle, and center is a through hole, exert oneself, and sliding hammer about 2 both ends of the surface is plane, for exerting a force to elastic card cylinder 4 or nut 1 when work is convenient in spindle design.
During work, elastic card cylinder 4 openend inverted cone is contacted with aperture, hollow alignment pin 5 upper end, evenly firmly make it penetrate hollow alignment pin 5 endoporus vertically, until rear ring-shaped platform expanded by elastic card cylinder 4 catch on hollow alignment pin 5 lower surface.Firmly mention pull bar 3, masterpiece is used for elastic card cylinder 4 openend by the core 6 that rises, and elastic card cylinder 4 is expanded, and increases and hollow alignment pin 5 contact area.Impacting pull bar 3 upper nut 1 by sliding hammer 2 makes hollow alignment pin 5 by outside power, and repeatedly impact is until hollow alignment pin 5 is pulled out.When ring-shaped platform exceeds elastic card drum outer wall 1 ~ 2mm, this instrument is convenient to choose the thin-wall sleeve be bumped in part.
Pin pulling tool once can be chosen multiple alignment pin, finally unloads lower nut 1 and sliding hammer 2, takes out alignment pin from pull bar 3 one end.This instrument can be chosen the hollow alignment pin within the scope of certain diameter, as long as change corresponding elastic card cylinder when exceeding this diameter range and the core that rises.
Claims (3)
1. the instrument of hollow pins of choosing, comprise sliding hammer (2), pull bar (3) and elastic card cylinder (4), Open Side Down is contained in pull bar (3) bottom for elastic card cylinder (4), it is characterized in that: described elastic card cylinder (4) is for barrel-shaped, its openend is provided with circumferentially equally distributed multiple axial groove, openend outer rim is outwardly, the shape ring-shaped platform in back taper in aggregates, and elastic card cylinder (4) central upper portion has the circular hole passed for pull bar (3); Suit one rises core (6) in described elastic card cylinder (4), core (6) top of rising is cylindrical, bottom is truncated cone-shaped, the bottom surface diameter of round platform is greater than elastic card cylinder (4) internal diameter, upper bottom surface diameter is less than elastic card cylinder (4) internal diameter, the rise upper end of core (6) is connected with pull bar (3) lower end by screw
described sliding hammer (2) is installed on pull bar (3), can freely up and down slide;described ring-shaped platform exceeds elastic card cylinder (4) outer wall 1 ~ 2mm.
2. the instrument of hollow pins of choosing according to claim 1, is characterized in that: described pull bar (3) threaded upper ends connects a nut (1).
3. the instrument of hollow pins of choosing according to claim 2, is characterized in that: described sliding hammer (2) is in spindle, and center is a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465221.1A CN103465220B (en) | 2013-10-09 | 2013-10-09 | The instrument of hollow pins of choosing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465221.1A CN103465220B (en) | 2013-10-09 | 2013-10-09 | The instrument of hollow pins of choosing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103465220A CN103465220A (en) | 2013-12-25 |
| CN103465220B true CN103465220B (en) | 2016-04-27 |
Family
ID=49790379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310465221.1A Expired - Fee Related CN103465220B (en) | 2013-10-09 | 2013-10-09 | The instrument of hollow pins of choosing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103465220B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400735B (en) * | 2014-10-27 | 2017-01-18 | 西安航空动力股份有限公司 | Irregularly-shaped thin-walled bushing dismounting tool |
| CN104552143B (en) * | 2014-12-02 | 2016-06-29 | 重庆秦安机电股份有限公司 | Dowel device |
| CN109397186A (en) * | 2018-12-27 | 2019-03-01 | 无锡哨东自动化技术有限公司 | Blind pin pin removal |
| CN112847243A (en) * | 2019-11-28 | 2021-05-28 | 北京福田康明斯发动机有限公司 | Dismounting device of annular work piece |
| CN111889960B (en) * | 2020-07-06 | 2022-07-19 | 哈尔滨锅炉厂有限责任公司 | Tube drawing device for adjusting upper tube plate and lower tube plate of heat exchanger |
| CN112571369A (en) * | 2020-11-30 | 2021-03-30 | 沪东重机有限公司 | Pulling-out device for elastic pin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201261178Y (en) * | 2008-10-07 | 2009-06-24 | 汤志刚 | Bush drawing device |
| CN203557334U (en) * | 2013-10-09 | 2014-04-23 | 河南柴油机重工有限责任公司 | Tool for drawing out hollow pin |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848460A (en) * | 1997-04-07 | 1998-12-15 | Rasmussen; Neils L. | Bearing puller |
| US6095017A (en) * | 1999-02-19 | 2000-08-01 | Long; Shu Yung | Kind of dish type brake cylinder adjustment device |
| CN202241117U (en) * | 2011-10-19 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Bearing extractor |
-
2013
- 2013-10-09 CN CN201310465221.1A patent/CN103465220B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201261178Y (en) * | 2008-10-07 | 2009-06-24 | 汤志刚 | Bush drawing device |
| CN203557334U (en) * | 2013-10-09 | 2014-04-23 | 河南柴油机重工有限责任公司 | Tool for drawing out hollow pin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103465220A (en) | 2013-12-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 |