CN106271375B - One kind being used for space flight microminiature precision spherical surface coupling part rolling device - Google Patents
One kind being used for space flight microminiature precision spherical surface coupling part rolling device Download PDFInfo
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- CN106271375B CN106271375B CN201610789194.7A CN201610789194A CN106271375B CN 106271375 B CN106271375 B CN 106271375B CN 201610789194 A CN201610789194 A CN 201610789194A CN 106271375 B CN106271375 B CN 106271375B
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- swivel nut
- hole
- sliding block
- push handle
- screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
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- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of for space flight microminiature precision spherical surface coupling part rolling device, the sliding block with idler wheel is arranged in the device, and sliding block is arranged in the different threaded hole of swivel nut curvature, works as rotary threaded sleeve, since the difference of curvature makes sliding block be moved radially along swivel nut section, to squeeze plunger sub-unit.
Description
Technical field
The present invention designs a kind of mechanical cool-working technology, especially a kind of to be rolled for space flight microminiature precision spherical surface coupling part
Pressure device.
Background technology
Plunger pump is since compact-sized, operating pressure is high, efficient and easy to adjust and be widely used in various aviations boat
On its product and engineering machinery.Plunger mat is formed by connecting with plunger body by mating spherical surfaces by accurate spherical surface coupling part,
The performances such as the axial gap after connection have significant impact to the working efficiency and service life of oil pump, and plunger mat connects with plunger body
Connect is to ensure that quality, the technology make plunger mat oral area cause its generation into row metal cold extrusion by external force using mechanical closing in technology
Plastic deformation, makes it globally coat plunger body spherical surface, and inside and outside spherical surface forms the female surface being bonded entirely, the spirit both to realize
Connection living, technical difficulty is big, complex process, is that major Aeronautics and Astronautics field is developed and the core key technology of production.Its
It needs to carry out running-in test after closing in, when plunger sub-unit is when higher-pressure region extrudes fluid, plunger bears high-voltage oil liquid effect, plunger
Bulb is bonded with nest in plunger mat, and plunger mat baseplane is bonded with swash plate, and hydraulic coupling is transferred to swash plate；When in low-pressure area oil suction
When, plunger ball is bonded with plunger mat oral area mouth, and plunger mat step annulus is bonded with chuck；It is converted to low pressure in high pressure
Moment, since gap exists at two, plunger mat oral area mouth will bear certain impact force, be also to influence plunger at this time
The worst force status in seat closing in position, causes its axial gap to amplify, cannot meet product design index request.
Invention content
The purpose of the present invention is to provide one kind being used for space flight microminiature precision spherical surface coupling part rolling device, by this hair
After the bright device being related to is rolled, plunger mat and plunger physical efficiency are with its own quality flexible rotating and pivot angle is big in any direction
It is less than 0.015mm in the axial gap of 22 ° and turning joint.
One kind being used for space flight microminiature precision spherical surface coupling part rolling device, which is characterized in that including coaxial cover board, spiral shell
Set, push handle, mandril, the first spring, pressure regulating screw further include sliding block, pin, ejector pin, second spring；Its cover plate is arranged along axis
For be rolled workpiece by through-hole, swivel nut left end face be bonded with cover board right end face and swivel nut left end face be arranged spiral
Hole, the threaded hole left-hand end be divided into three sections and each section of curvature it is descending variation and adjacent two sections of junction side spiral
Empty maximum curvature other side helicla flute curvature is minimum, and push handle is set to swivel nut threaded hole right-hand end and endoporus is arranged along axis, in
Push handle in swivel nut threaded hole radially lays three ejector pin through-holes along push handle section and every two ejector pin through-holes differ 120 °, sliding block
It is arranged three and different sliding block are set in swivel nut threaded hole left-hand end difference section and left and right ends face is tight with cover board, push handle respectively
Rolling is arranged on the end face that sliding block is also close to swivel nut spiral wall surface of the hole and the end face be close to swivel nut spiral wall surface of the hole is opposite in patch
Wheel, pressure regulating screw are set to the right end of push handle endoporus, and mandril is set in push handle endoporus and right end passes through the first spring and pressure regulation
Screw connects, and mandril left end is set as tip and the second bullet is arranged in ejector pin through hole for withstanding rolled workpiece, mandril left end
Spring slot, second spring is located in second spring slot and the other end is connect with ejector pin, and ejector pin is connect by pin with sliding block.
Device according to the present invention, when idler wheel is rolled face with plunger mat oral area to be contacted, three idler wheels rotations make column
Obturating plug contact surface generates plastic deformation, to realize flexible rotating of the plunger body spherical surface in plunger mat ball-and-socket.Wherein idler wheel
Type face is to change rolling force direction so that part material is axially extending in the rolling surface limitation rolling process of idler wheel, makes plunger
Seat closing in end stress deformation first obtains preferable spherical envelope gradually to centre of sphere Directional Extension, to ensure to roll Song Houqiu
The performance of face coupling part is stablized.
The present invention is described further with reference to the accompanying drawings of the specification.
Description of the drawings
Fig. 1 is structure of the invention diagrammatic cross-section.
Fig. 2 is threaded hole and sliding block cooperation schematic diagram.
Specific implementation mode
In conjunction with Fig. 1, Fig. 2, one kind being used for space flight microminiature precision spherical surface coupling part rolling device, which is characterized in that including
Coaxial cover board 1, swivel nut 2, push handle 7, mandril 8, the first spring 9, pressure regulating screw 10, further include sliding block 3, pin 4, ejector pin 5, stop
Screw 6, second spring 13.
Cover board 1 along axis setting for be rolled workpiece by through-hole, 2 left end face of swivel nut and 1 right-hand end face paste of cover board
It closes and threaded hole is arranged in 2 left end face of swivel nut, which is divided into three sections and each section of descending variation of curvature
And adjacent two sections of junction side spiral sky maximum curvature other side helicla flute curvature is minimum, push handle 7 using Morse taper shank and
It is set to 2 threaded hole right-hand end of swivel nut and endoporus is set along axis, it is radial along 7 section of push handle in the push handle 7 in 2 threaded hole of swivel nut
It lays three ejector pin through-holes and every two ejector pin through-holes differs 120 °, sliding block 3 is arranged three and different sliding blocks are set to 2 spiral shell of swivel nut
In trepanning left-hand end difference section and left and right ends face is close to cover board 1, push handle 7 respectively, sliding block 3 also with 2 spiral wall surface of the hole of swivel nut
It is close to and idler wheel is set on the end face opposite with the end face that 2 spiral wall surface of the hole of swivel nut is close to, pressure regulating screw 10 is set in push handle 7
The right end in hole, mandril 8 is set in 7 endoporus of push handle and right end is connect by the first spring 9 with pressure regulating screw 10, pressure
Size is adjusted by pressure regulating screw 10, and 8 left end of mandril is set as tip for withstanding rolled workpiece, and 8 left end of mandril is in ejector pin
Second spring slot is arranged in through hole, and second spring 13 is located in second spring slot and the other end is connect with ejector pin 5, and ejector pin 5 passes through
Pin 4 is connect with sliding block 3.Rotary threaded sleeve 2, three helicoids band movable slider 3 thereon move radially, three be connected on sliding block 3
A pair of rollers workpiece oral area force, completes rolling and processing.
The screw axis on cover board 1 is fixed in the setting of 3 both sides of each sliding block, is put in circumferencial direction when limitation sliding block moves radially
It is dynamic.
Bearing is set between 3 swivel nut of sliding block, 2 spiral wall surface of the hole, to reduce the frictional force of sliding block 3 and swivel nut inner spiral groove.
Limit screw through-hole is set on 2 outer wall of swivel nut, is arranged on 7 outer wall of push handle and stops with the matched annular of limit screw through-hole
Dynamic screw slots screw in limit screw through-hole by limit screw 6 and limit screw slot reach swivel nut 2 when swivel nut 2 stops rotating
Stop limit.
Plunger sub-unit is formed by connecting with plunger body by mating spherical surfaces by plunger mat, the axial gap after connection
Etc. performances have a significant impact to the working efficiency and service life of oil pump, and plunger mat is connect with plunger body to be closed up using machinery
Technology ensures that quality, the technology make plunger mat oral area cause it to be plastically deformed into row metal cold extrusion, make its edge by external force
Spherical surface coats plunger body spherical surface, and inside and outside spherical surface forms flexible connection of the female surface being bonded entirely both to realize, at 360 °
Any direction flexible rotating, axial gap are less than 0.015mm, are less than by decomposing axial gap after 190min running-in tests
Its axial gap of overhaul is less than 0.06mm again after 0.06mm, 60h life cycle test, and technical requirement is high.
For above-mentioned plunger sub-unit, application method of the invention：By plunger mat clamping in scroll chuck or special fixture
Interior, three idler wheel rolling devices are inserted into using Morse taper shank in tail stock, and plunger body bulb is withstood on column by the mandril of rolling device
In the ball-and-socket of obturating plug, by spring compression, rotary threaded sleeve, three helicoids band movable slider thereon moves radially, and is connected to sliding block
On three pair of rollers plunger mat oral areas press, limit screw is locked after pressure.After the completion of rolling, limit screw is unclamped,
When reversely rotating screw-casing, three idler wheels then bounce back into original position, convenient for removing the plunger assembly after closing up.
Claims (4)
1. one kind be used for space flight microminiature precision spherical surface coupling part rolling device, which is characterized in that including coaxial cover board (1),
Swivel nut (2), push handle (7), mandril (8), the first spring (9), pressure regulating screw (10), further include sliding block (3), pin (4), ejector pin (5),
Limit screw (6), second spring (13)；Wherein
Cover board (1) along axis setting for be rolled workpiece by through-hole,
Swivel nut (2) left end face is bonded with cover board (1) right end face and swivel nut (2) left end face setting threaded hole,
The threaded hole left-hand end be divided into three sections and each section of curvature it is descending variation and adjacent two sections of junction side spiral shell
Trepanning maximum curvature other side threaded hole curvature is minimum,
Push handle (7) is set to swivel nut (2) threaded hole right-hand end and endoporus is arranged along axis,
Three ejector pin through-holes are radially laid along push handle (7) section and every two ejector pins are logical in the push handle (7) in swivel nut (2) threaded hole
Hole differs 120 °,
Sliding block (3) is arranged three and different sliding blocks are set in swivel nut (2) threaded hole left-hand end difference section and left and right ends face point
It is not close to cover board (1), push handle (7),
The end face that sliding block (3) is also close to swivel nut (2) spiral wall surface of the hole and the end face be close to swivel nut (2) spiral wall surface of the hole is opposite
Upper setting idler wheel,
Pressure regulating screw (10) is set to the right end of push handle (7) endoporus,
Mandril (8) is set in push handle (7) endoporus and right end is connect by the first spring (9) with pressure regulating screw (10),
Mandril (8) left end is set as tip and is used to withstand rolled workpiece,
Second spring slot is arranged in ejector pin through hole in mandril (8) left end,
Second spring (13) is located in second spring slot and the other end is connect with ejector pin (5),
Ejector pin (5) is connect by pin (4) with sliding block (3).
2. the apparatus according to claim 1, which is characterized in that each sliding block (3) both sides setting is fixed on cover board (1)
Screw axis.
3. the apparatus according to claim 1, which is characterized in that limit screw through-hole, push handle are arranged on swivel nut (2) outer wall
(7) setting passes through stop with the matched annular stop screw slots of limit screw through-hole when swivel nut (2) stops rotating on outer wall
Screw (6) screws in limit screw through-hole and limit screw slot reaches swivel nut (2) stop limit.
4. the apparatus according to claim 1, which is characterized in that axis is arranged between sliding block (3) and swivel nut (2) spiral wall surface of the hole
It holds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789194.7A CN106271375B (en) | 2016-08-31 | 2016-08-31 | One kind being used for space flight microminiature precision spherical surface coupling part rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789194.7A CN106271375B (en) | 2016-08-31 | 2016-08-31 | One kind being used for space flight microminiature precision spherical surface coupling part rolling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106271375A CN106271375A (en) | 2017-01-04 |
| CN106271375B true CN106271375B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610789194.7A Active CN106271375B (en) | 2016-08-31 | 2016-08-31 | One kind being used for space flight microminiature precision spherical surface coupling part rolling device |
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| CN (1) | CN106271375B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070677A (en) * | 2021-03-29 | 2021-07-06 | 四川坤成润科技有限公司 | Plunger assembly rolling loosening device and rolling loosening method |
| CN115488602B (en) * | 2022-09-19 | 2024-08-02 | 宁波博曼特工业有限公司 | Hydraulic pump plunger assembling equipment and assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB382135A (en) * | 1931-01-13 | 1932-10-20 | Manganese Bronze And Brass Com | Apparatus for sizing or burnishing tubular metal elements |
| DE102012018605A1 (en) * | 2012-09-20 | 2014-03-20 | Rolls-Royce Deutschland Ltd & Co Kg | Rolling tool device |
| CN204430022U (en) * | 2015-01-20 | 2015-07-01 | 青岛力克川液压机械有限公司 | One-time formed plunger closing device |
| CN204449799U (en) * | 2015-02-10 | 2015-07-08 | 内蒙古一机集团瑞特精密工模具有限公司 | Conjuncted pump motor piston component necking forming device |
| CN204663860U (en) * | 2015-04-15 | 2015-09-23 | 北京航科发动机控制系统科技有限公司 | A kind of piston shoes piston structure with roller |
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| Publication number | Publication date |
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| CN106271375A (en) | 2017-01-04 |
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