CN107932410A - A kind of straight pin pressing method based on stone tongs - Google Patents
A kind of straight pin pressing method based on stone tongs Download PDFInfo
- Publication number
- CN107932410A CN107932410A CN201711100936.1A CN201711100936A CN107932410A CN 107932410 A CN107932410 A CN 107932410A CN 201711100936 A CN201711100936 A CN 201711100936A CN 107932410 A CN107932410 A CN 107932410A
- Authority
- CN
- China
- Prior art keywords
- hole
- pin
- limit
- straight pin
- guide rod
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The title of the present invention is a kind of straight pin pressing method based on stone tongs, the pressing method of traditional " support, press-in " is improved, and proposes a kind of to be pressed the method for straight pin using lifting compression mode and coordinate bulb guide rod.The advantages of the method is that worker is workable, supporting structure caused by avoiding human factor is bonded error with part, in addition, if principal axis of pressing machine is bad with verticality of work bench, direction that applying power can be caused be not vertically downward, it is but inclined, the skew force that forcing press applies can be converted into the power perpendicular to workbench by bulb guide rod at this time, avoid straight pin pressure partially, so as to improve the qualification rate of part by one-step press fitting straight pin, reduce scrapping for part.
Description
Technical field
The invention belongs to aircraft engine shell part to assemble field, is related to a kind of straight pin pressure based on stone tongs
Dress method, the method for being applied particularly to be pressed into straight pin in special-shaped part pin hole.
Background technology
Shell part is positioned by pin mostly, ensures that the structural member of inside is moved accordingly, Jin Ershi
Now predetermined function.Therefore, pin on housing be pressed after Geometrical Tolerance Principle it is particularly important that, mainly include position degree and hang down
Straight degree.
Shell part complex contour, positioning pin lower section hanging structure are more.Positioning pin is matched somebody with somebody with housing upper Positioning holes for interference
Close, to ensure that positioning pin can be pressed into housing, be usually pressed on forcing press using compression bar, specific method is：First by zero
Part is placed in tool base plate, it would be desirable to which it is corresponding with screw rod to be pressed the hanging part of straight pin, slowly screws out screw rod and pushes up to it
End in contact part, is then directly pressed on forcing press using compression bar, and straight pin ride out is limited by limit for height piece.
Although such a method is from macroscopically it is believed that the power of screw support part and the dynamic balance of press fitting, from microcosmic
On, what artificial back-out screw rod can not possibly be bonded with part fits together perfectly, and part is probably jacked up or had between screw rod
Trickle gap, when part stress, produce deformation, in addition, principal axis of pressing machine with verticality of work bench is bad can cause compression bar to cylinder
Sell pressure direction tilt, both reasons can cause straight pin be pressed after verticality and position degree it is overproof, so as to cause housing
There is clamping stagnation in inner structural members during assembling, influence whole pump performance.
The content of the invention
The purpose of the present invention is：The purpose of the present invention is exactly to solve to ask existing for above-mentioned existing straight pin pressing method
Topic, and propose it is a kind of it is easy to operate, can effectively avoid part deformation and ensure the pressing method of straight pin position degree and verticality.
Technical scheme：
A kind of straight pin pressing method based on stone tongs is provided, will be had using stone tongs 1 in the method
The part 2 of pin hole carries out lifting fixation, and the stone tongs includes table top and fixture, and part is fixed under table top by fixture
Side, and by the pin hole opening upwards of lifting part, the position that the pin hole correspond on table top is provided with circular through hole 3, and circular lead to
The diameter in hole is more than pin hole diameter 4；Further include bulb guide rod 5, guide sleeve 6 and limit for height block 7；Guide sleeve 6 is provided with centre pilot
Hole, the guide sleeve 6 is installed in circular through hole, and is slidably matched with circular through hole；Bulb guide rod 5 is led installed in center
Xiang Kongzhong, and be slidably matched with centre pilot hole；Stepped hole centered on 6 lower port of guide sleeve, 7 top of limit for height block are installed on center
In stepped hole, and limit for height block 7 has centre bore, and the centre bore internal diameter of limit for height block 7 is less than 5 outside diameter of bulb guide rod；Straight pin 8 passes through
The centre bore of 7 centre bore of limit for height block and limit for height block is worn, 8 upper end of straight pin offsets with bulb guide rod 5, and lower end is against the pin hole
4；7 lower face of limit for height block is pressed on part, and the centre bore of limit for height block is located at directly over pin hole；
During press fitting, pressure is applied to the upper end of bulb guide rod 5 so that bulb guide rod 5 transfers the pressure to straight pin
8, straight pin 8 is pressed into pin hole 4, when being press-fit into place, bulb guide rod 5 is stopped by limit for height block 7, at this time, pressure transmission
Onto limit for height block 7, pressure will not be continued to straight pin 8.
Further, table top passes through 3 height adjustment device energy by 3 height adjusting device supports on working face
Enough adjust the levelness of table top.
Further, the collet of fixture has angle adjusting mechanism, can adapt to the part of different shapes.
Further, leveler is provided with table top, for judging whether to be horizontal.
Further, the angle adjusting mechanism of the collet of fixture is universal joint retention mechanism.
Further, the height adjustment device of table top is screw rod or hydraulic cylinder.
Beneficial effects of the present invention are：
Asked 1. geometric tolerance is overproof after the press fitting of certain shell body straight pin on certain model aircraft engine in solution actual production
Topic.
2. propose a kind of method of new press fitting straight pin, can there are pressing demand and the more housing class zero of hanging structure
Enterprising exercise of part is used, and ensures part straight pin end-state meet demand.
3. proposing the specific force analysis during the pressing method, replicability is strong.
Brief description of the drawings
Fig. 1 is the stone tongs stereogram of the present invention；
Fig. 2 is the stone tongs bottom view of the present invention；
Fig. 3 is the guided tooling and its stress diagram of the present invention；
In figure：1 is stone tongs, and 2 be part, and 3 be the circular through hole on fixture, and 4 be part pin hole, and 5 are oriented to for bulb
Bar, 6 be guide sleeve, and 7 be limit for height block, and 8 be straight pin.
Embodiment
In order to better illustrate the present invention, the embodiment of the present invention is given below.
A kind of straight pin pressing method based on stone tongs is provided, will be had using stone tongs 1 in the method
The part 2 of pin hole carries out lifting fixation, and the stone tongs includes table top and fixture, and part is fixed under table top by fixture
Side, and by the pin hole opening upwards of lifting part, the position that the pin hole correspond on table top is provided with circular through hole 3, and circular lead to
The diameter in hole is more than pin hole diameter 4；Further include bulb guide rod 5, guide sleeve 6 and limit for height block 7；Guide sleeve 6 is provided with centre pilot
Hole, the guide sleeve 6 is installed in circular through hole, and is slidably matched with circular through hole；Bulb guide rod 5 is led installed in center
Xiang Kongzhong, and be slidably matched with centre pilot hole；Stepped hole centered on 6 lower port of guide sleeve, limit for height block 7 are installed on center step
Kong Zhong, and limit for height block 7 has centre bore, the centre bore internal diameter of limit for height block 7 is less than 5 outside diameter of bulb guide rod；Straight pin 8 is through limit
High 7 centre bore of block, 8 upper end of straight pin offset with bulb guide rod 5, and lower end is against the pin hole 4；Limit for height block 7 is placed in part
At pin hole；
During press fitting, pressure is applied to the upper end of bulb guide rod 5 so that bulb guide rod 5 transfers the pressure to straight pin
8, straight pin 8 is pressed into pin hole 4, when being press-fit into place, bulb guide rod 5 is stopped by limit for height block 7, at this time, pressure transmission
Onto limit for height block 7, pressure will not be continued to straight pin 8.
Further, table top passes through 3 height adjustment device energy by 3 height adjusting device supports on working face
Enough adjust the levelness of table top.
Further, the collet of fixture has angle adjusting mechanism, can adapt to the part of different shapes.
Further, leveler is provided with table top, for judging whether to be horizontal.
Claims (6)
1. providing a kind of straight pin pressing method based on stone tongs, there will be pin hole using stone tongs in the method
Part carry out lifting fixation, the stone tongs includes table top and fixture, and part is fixed on below table top by fixture, and by
The pin hole opening upwards of part are lifted, the position that the pin hole is corresponded on table top is provided with circular through hole, and the diameter of circular through hole
More than pin hole diameter；Further include bulb guide rod, guide sleeve and limit for height block；Guide sleeve is provided with centre pilot hole, the guiding
Set is installed in circular through hole, and is slidably matched with circular through hole；Bulb guide rod is installed in centre pilot hole, and and center
Pilot hole is slidably matched；Stepped hole centered on guide sleeve lower port, limit for height block top is installed in center stepped hole, and limit for height block
With centre bore, the centre bore internal diameter of limit for height block is less than bulb guide rod outside diameter；Straight pin runs through limit for height block centre bore and limit for height
The centre bore of block, straight pin upper end offset with bulb guide rod, and lower end corresponds to the pin hole；Limit for height block lower face is pressed in part
On, and the centre bore of limit for height block is located at directly over pin hole；
During press fitting, pressure is applied to the upper end of bulb guide rod so that bulb guide rod transfers the pressure to straight pin, by cylinder
Pin is pressed into pin hole, and when being press-fit into place, bulb guide rod is stopped by limit for height block, at this time, in pressure transmission to limit for height block, no
Pressure can be continued to straight pin.
2. elastic expansion pin erecting device according to claim 1, it is characterised in that：Table top is adjusted by 3 height and filled
Put and be supported on working face, the levelness of table top can be adjusted by 3 height adjustment device.
3. elastic expansion pin erecting device according to claim 1 or 2, it is characterised in that：The collet of fixture has angle
Adjusting mechanism, can adapt to the part of different shapes.
4. elastic expansion pin erecting device according to claim 1 or 2, it is characterised in that：Leveler is provided with table top,
For judging whether to be horizontal.
5. elastic expansion pin erecting device according to claim 1 or 2, it is characterised in that：The angle tune of the collet of fixture
Section mechanism is universal joint retention mechanism.
6. elastic expansion pin erecting device according to claim 1 or 2, it is characterised in that：The height adjustment device of table top
For screw rod or hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100936.1A CN107932410A (en) | 2017-11-09 | 2017-11-09 | A kind of straight pin pressing method based on stone tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100936.1A CN107932410A (en) | 2017-11-09 | 2017-11-09 | A kind of straight pin pressing method based on stone tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107932410A true CN107932410A (en) | 2018-04-20 |
Family
ID=61933688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711100936.1A Pending CN107932410A (en) | 2017-11-09 | 2017-11-09 | A kind of straight pin pressing method based on stone tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107932410A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090241313A1 (en) * | 2008-03-31 | 2009-10-01 | Vess Robert L | Pin Removal and Insertion Tool |
| CN203003741U (en) * | 2012-12-04 | 2013-06-19 | 常州南车汽车零部件有限公司 | Cotter pin press fitting fixture |
| CN203031507U (en) * | 2012-12-10 | 2013-07-03 | 鲁银集团禹城粉末冶金制品有限公司 | Positioning device for rivet pin |
| CN203077156U (en) * | 2013-02-06 | 2013-07-24 | 荆州恒隆汽车零部件制造有限公司 | Quickly located gear shaft straight pin press-mounting device |
| CN203109847U (en) * | 2012-12-14 | 2013-08-07 | 常州南车汽车零部件有限公司 | Pin pressing fixture of turbine cylinder |
| CN205904941U (en) * | 2016-08-01 | 2017-01-25 | 苏州市广硕精密机械有限公司 | Novel pin pressure equipment anchor clamps |
| CN107042485A (en) * | 2017-03-06 | 2017-08-15 | 苏州蓝王机床工具科技有限公司 | Alignment pin press mounting tool |
| CN206484485U (en) * | 2016-12-28 | 2017-09-12 | 贵州黎阳国际制造有限公司 | A kind of fixture for being used to assemble aero-engine casing part on square pin |
-
2017
- 2017-11-09 CN CN201711100936.1A patent/CN107932410A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090241313A1 (en) * | 2008-03-31 | 2009-10-01 | Vess Robert L | Pin Removal and Insertion Tool |
| CN203003741U (en) * | 2012-12-04 | 2013-06-19 | 常州南车汽车零部件有限公司 | Cotter pin press fitting fixture |
| CN203031507U (en) * | 2012-12-10 | 2013-07-03 | 鲁银集团禹城粉末冶金制品有限公司 | Positioning device for rivet pin |
| CN203109847U (en) * | 2012-12-14 | 2013-08-07 | 常州南车汽车零部件有限公司 | Pin pressing fixture of turbine cylinder |
| CN203077156U (en) * | 2013-02-06 | 2013-07-24 | 荆州恒隆汽车零部件制造有限公司 | Quickly located gear shaft straight pin press-mounting device |
| CN205904941U (en) * | 2016-08-01 | 2017-01-25 | 苏州市广硕精密机械有限公司 | Novel pin pressure equipment anchor clamps |
| CN206484485U (en) * | 2016-12-28 | 2017-09-12 | 贵州黎阳国际制造有限公司 | A kind of fixture for being used to assemble aero-engine casing part on square pin |
| CN107042485A (en) * | 2017-03-06 | 2017-08-15 | 苏州蓝王机床工具科技有限公司 | Alignment pin press mounting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |
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| RJ01 | Rejection of invention patent application after publication |