CN207372706U - Spacecraft spherical high-pressure gas cylinder processing tool - Google Patents
Spacecraft spherical high-pressure gas cylinder processing tool Download PDFInfo
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- CN207372706U CN207372706U CN201721084717.4U CN201721084717U CN207372706U CN 207372706 U CN207372706 U CN 207372706U CN 201721084717 U CN201721084717 U CN 201721084717U CN 207372706 U CN207372706 U CN 207372706U
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Abstract
The utility model is related to a kind of spacecraft spherical high-pressure gas cylinder processing tool, to solve the problems, such as that gas cylinder hemisphere of the prior art is yielding when being machined out shaping.Frock includes the pedestal of rotary structure, the pedestal is equipped with the clamping portion for machine tool jaw clamping, pedestal includes base flange, one end that the revolution of the base flange is axial is equipped with the positioning region being inserted into the inner cavity of gas cylinder hemisphere blank, the positioning region is equipped with the axial locating surface of inner surface location fit and the radial positioning face being respectively used to the axial end face of gas cylinder hemisphere blank and opening, frock further includes for gas cylinder hemisphere blank to be pressed on the annular gland on pedestal, the annular gland is equipped with the stopping surface of the end face block cooperation for the opening direction backwards to gas cylinder hemisphere blank with clamp.Gas cylinder hemisphere blank is fixed in frock by pedestal and annular gland, and jig clamping lives pedestal, and gas cylinder hemisphere blank will not be influenced deformation by clamping machine tool.
Description
Technical field
The utility model is related to a kind of spacecraft spherical high-pressure gas cylinder processing tools.
Background technology
Gas cylinder is the critical component of spacecraft propulsion and control system, it can be used for storing liquid and gas, be
Spacecraft provides high-pressure air source.As shown in Figure 1, the bottle of gas cylinder be by two gas cylinder hemisphere 1 weld seam 2 welding and
Into.The processing quality of gas cylinder hemisphere 1 is the important determinant of gas cylinder performance, the procedure of processing of existing gas cylinder hemisphere 1
For：Blanking-forging-heat treatment-machining.Being relatively large in diameter of gas cylinder, wall is thin, required precision is high, error requirements control
In the range of 0~0.05mm.When machining to gas cylinder hemisphere 1, it is necessary to by gas cylinder hemisphere blank clamping on lathe,
Since gas cylinder hemisphere blank diameter is larger, so inconvenience is also easy to produce deformation in clamping on lathe and in clamping on lathe, in order to
It solves clamping and problem on deformation, designer is reserved for the clamp of machine tool jaw clamping on gas cylinder hemisphere rough forging part 12
11, the clamp 11 is to enclose boss radially outward from the one of gas cylinder hemisphere blank along the axis of rotation of gas cylinder hemisphere blank, but
It is that clamping chuck 11 still has gas cylinder hemisphere blank can be caused to be deformed, accuracy requirement can not be met.And due to gas cylinder hemisphere 1
Wall it is relatively thin, when being processed to the spherical outside surface of gas cylinder hemisphere 1, gas cylinder ball when cutter acts on the outer surface of gas cylinder hemisphere blank
Body deformation is larger.
Utility model content
The purpose of this utility model is to provide a kind of spacecraft spherical high-pressure gas cylinder processing tool, to solve the prior art
In gas cylinder hemisphere gas cylinder hemisphere blank deformed during lathe finger mountings clamping gas cylinder hemisphere blank when being machined out shaping
The problem of required precision can not be met greatly.
To solve the above problems, the spacecraft spherical high-pressure gas cylinder processing tool in the utility model takes following technical side
Case：Spacecraft spherical high-pressure gas cylinder processing tool includes the pedestal of rotary structure, and the pedestal is equipped with to be filled for machine tool jaw
The clamping portion of folder, pedestal include base flange, and one end of the revolution axial direction of the base flange, which is equipped with, is inserted into gas cylinder hemisphere base
Positioning region in the inner cavity of part, the positioning region, which is equipped with, to be respectively used to and the axial end face of gas cylinder hemisphere blank and opening
The axial locating surface of inner surface location fit and radial positioning face, frock further include gas cylinder hemisphere blank being pressed on pedestal
On annular gland, the annular gland is equipped with to keep off backwards to the end face of the opening direction of gas cylinder hemisphere blank with clamp
The stopping surface only coordinated.
The base flange is equipped with radial dimension of the radial dimension less than base flange backwards to the one side of the positioning region
Cylinder, the cylinder forms the clamping portion.Machine tool jaw is together with the smaller cylinder clamping of radial dimension, smaller machine
Bed can be secured to clamping machine tool, precision higher.
The positioning region is the positioning bulb for the inner surface location fit with gas cylinder hemisphere blank in gas cylinder hemisphere
It is against when blank deforms on the inner surface of gas cylinder hemisphere blank.When cutter is acted on the spherical outside surface of gas cylinder hemisphere blank,
Gas cylinder hemisphere blank is deformed, positioning bulb be against on the inner surface of gas cylinder hemisphere blank prevent from deforming it is excessive.
The pedestal and annular gland are bolted, and base flange is equipped with the threaded hole with bolt cooperation, annular
Gland is equipped with the bolt penetration hole passed through for bolt, and the bolt is connected through bolt penetration hole with threaded hole.It is removable by bolt
Connection, it is convenient for disassembly and assembly.
The threaded hole is arranged along the even circumferential of base flange.
The pedestal is equipped with parallel to the axial perforative venthole of its revolution.Venthole prevents gas cylinder hemisphere blank from fastening
It is generated when on positioning region and feels suffocated and lead to not fasten.
The inner surface of the annular gland is equipped with the annular gland positioning convex platform radially extended, the annular gland positioning
The side towards pedestal of boss forms the stopping surface.
The one side towards positioning region of the base flange is equipped with the pedestal positioning convex platform radially extended, and the pedestal is determined
The outer circumferential surface of position boss and the inner surface location fit of annular gland are with to annular gland radial positioning.
The beneficial effects of the utility model are：Spacecraft spherical high-pressure gas cylinder processing tool includes the bottom of rotary structure
Seat, the pedestal are equipped with the clamping portion for machine tool jaw clamping, and pedestal includes base flange, the rotating shaft of the base flange
To one end be equipped with and be inserted into positioning region in the inner cavity of gas cylinder hemisphere blank, the positioning region, which is equipped with, to be respectively used to and gas cylinder
The axial locating surface and radial positioning face, frock of the axial end face of hemisphere blank and the inner surface location fit of opening further include
For gas cylinder hemisphere blank to be pressed on to the annular gland on pedestal, the annular gland is equipped with for the gas backwards with clamp
The stopping surface of the end face block cooperation of the opening direction of bottle hemisphere blank.Gas cylinder hemisphere blank is fixed on by pedestal and annular gland
In frock, jig clamping lives pedestal, and lathe is not contacted directly with gas cylinder hemisphere blank, so clamping machine tool does not interfere with gas
The shape of bottle hemisphere blank.When lathe processes the outer surface of gas cylinder hemisphere blank, the deformation of gas cylinder hemisphere blank, but position
Portion is against the opening location fit of gas cylinder hemisphere blank, reduces the influence of deformation of the machining to gas cylinder hemisphere blank.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of gas cylinder of the prior art；
Fig. 2 is the schematic cross-sectional view of the gas cylinder hemisphere rough forging part in forging stage of the prior art；
Fig. 3 is the schematic cross-sectional view of the pedestal of the spacecraft spherical high-pressure gas cylinder processing tool in the utility model；
Fig. 4 is the schematic cross-sectional view of the annular gland of the spacecraft spherical high-pressure gas cylinder processing tool in the utility model；
Fig. 5 is the usage state diagram of the spacecraft spherical high-pressure gas cylinder processing tool in the utility model.
In attached drawing, 1- gas cylinder hemisphere blanks, 11- clamps, 12- gas cylinder hemisphere rough forging parts, 2- weld seams, 3- pedestals, 31-
Base flange, 32- cylinders, 33- axial locating surfaces, 34- threaded holes, 35- positioning regions, 36- ventholes, 37- radial positionings face,
38- pedestal positioning convex platforms, 4- annular glands, 41- stopping surfaces, 42- bolt penetration holes, 43- annular gland positioning convex platforms, 5- bolts.
Specific embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The embodiment one of spacecraft spherical high-pressure gas cylinder processing tool in the utility model, as in Figure 3-5, spacecraft
Spherical high-pressure gas cylinder processing tool includes the pedestal 3 of rotary structure, and the pedestal 3 is equipped with the clamping for machine tool jaw clamping
Portion, pedestal 3 include base flange 31, and one end of the revolution axial direction of the base flange 31, which is equipped with, is inserted into gas cylinder hemisphere blank 1
Inner cavity in positioning region 35, the positioning region 35, which is equipped with, is respectively used to axial end face and opening with gas cylinder hemisphere blank 1
The axial locating surface 33 of the inner surface location fit at place and radial positioning face 37, frock are further included for by gas cylinder hemisphere blank 1
Annular gland on the base 3 is compressed, the annular gland is equipped with for the opening backwards to gas cylinder hemisphere blank 1 with clamp 11
The stopping surface 41 of the end face block cooperation in mouth direction.
In the present embodiment, base flange 31 is equipped with radial dimension less than base flange backwards to the one side of the positioning region 35
31 radial dimension of cylinder 32, the cylinder 32 form the clamping portion.In other embodiments, it is not provided with column on pedestal 3
Body 32, the direct clamping of machine tool jaw is on the outer circumferential surface of base flange 31.
In the present embodiment, positioning region 35 be for the inner surface location fit with gas cylinder hemisphere blank 1 positioning bulb with
It is against when gas cylinder hemisphere blank 1 deforms on the inner surface of gas cylinder hemisphere blank 1.
In the present embodiment, the inner surface of annular gland 4 is equipped with the annular gland positioning convex platform 43 radially extended, the ring
The side towards pedestal of shape gland positioning convex platform 43 forms the stopping surface 41.
In the present embodiment, the one side towards positioning region 35 of the base flange 31 is equipped with the pedestal positioning radially extended
Boss 38, the outer circumferential surface of the pedestal positioning convex platform 38 is with the inner surface location fit of annular gland 4 with to 4 radial direction of annular gland
Positioning.
In the present embodiment, gap, gas are equipped between the outer surface of the positioning bulb and the inner surface of gas cylinder hemisphere blank 1
The error of bottle hemisphere blank 1 needs to be maintained in the range of 0-0.05mm, so the gap size in the present embodiment is 0.01-
0.02mm, when gas cylinder hemisphere blank 1 is deformed, positioning bulb is against the inner surface of gas cylinder hemisphere blank 1, makes gas cylinder hemisphere
The scale error of blank 1 is consistently less than 0.05mm.Certainly in other embodiments, the size in the gap can be according to actual need
It asks and is increased and decreased.The pedestal 3 be equipped with along pedestal 3 the venthole 36 axially penetrated through, 36 communication gap of venthole with
Exterior space, gas after gas cylinder hemisphere blank 1 is fastened on positioning bulb between the two pass through 36 row of gap and venthole
Go out, set and ensureing the indeformable weight for alleviating pedestal 3 of pedestal 3, venthole 36 here through venthole 36
A diameter of 40mm, the diameter of the venthole 36 is increased and decreased according to actual demand in other embodiments certainly；The ventilation
The quantity in hole 36 is increased and decreased according to actual demand；The direction of the venthole 36 and the axial direction of pedestal have angle.
In the present embodiment, the pedestal 3 and annular gland are evenly distributed on base flange 31 along it by flanged joint
Four threaded holes 34, annular gland is equipped with matches somebody with somebody with 34 corresponding unthreaded hole of threaded hole, screw through annular gland with threaded hole 34
Annular gland, gas cylinder hemisphere blank 1 and pedestal 3 are fixed together by conjunction.In other embodiments, the quantity of threaded hole 34 according to
Actual demand is increased and decreased；Threaded hole 34 replaces with unthreaded hole, coordinates after bolt-through pedestal 3 and annular gland with nut.
In use, the blank of gas cylinder hemisphere blank 1 fastens on the base 3, positioning bulb and the gas cylinder hemisphere of the pedestal 3
The inner surface of blank 1 coordinates, and then annular gland is pressed in the end face of its opening direction backwards of the clamp 11 of gas cylinder hemisphere blank 1
On, pedestal 3 and annular gland are bolted, and gas cylinder hemisphere blank 1 is clamped between pedestal 3 and annular gland.Then
Machine tool jaw is connected with the clamping portion clamping of pedestal 3, and lathe will not be contacted directly with gas cylinder hemisphere blank 1, will not make gas cylinder half
Ball blank 1 deforms, and when cutter processes the outer surface of gas cylinder hemisphere blank 1, is deformed after 1 stress of gas cylinder hemisphere blank, but
It is to position the inner surface that bulb is against gas cylinder hemisphere blank 1, it is excessive prevents that gas cylinder hemisphere blank 1 from deforming.
Claims (8)
1. spacecraft spherical high-pressure gas cylinder processing tool, it is characterised in that：Pedestal including rotary structure is set on the pedestal
There is the clamping portion for machine tool jaw clamping, pedestal includes base flange, and one end of the revolution axial direction of the base flange, which is equipped with, inserts
Enter to the positioning region in the inner cavity of gas cylinder hemisphere blank, the positioning region is equipped with the axial direction being respectively used to gas cylinder hemisphere blank
The axial locating surface of the inner surface location fit of end face and opening and radial positioning face, frock are further included for by gas cylinder hemisphere
Blank is pressed on the annular gland on pedestal, and the annular gland is equipped with for the opening backwards to gas cylinder hemisphere blank with clamp
The stopping surface of the end face block cooperation in mouth direction.
2. spacecraft spherical high-pressure gas cylinder processing tool according to claim 1, it is characterised in that：The base flange
Radial dimension of cylinder of the radial dimension less than base flange is equipped with backwards to the one side of the positioning region, the cylinder forms described
Clamping portion.
3. spacecraft spherical high-pressure gas cylinder processing tool according to claim 1, it is characterised in that：The positioning region is use
In the positioning bulb of the inner surface location fit with gas cylinder hemisphere blank to be against gas cylinder when gas cylinder hemisphere blank deforms
On the inner surface of hemisphere blank.
4. spacecraft spherical high-pressure gas cylinder processing tool according to claim 1, it is characterised in that：The pedestal and annular
Gland is bolted, and base flange is equipped with the threaded hole with bolt cooperation, and annular gland is equipped with what is passed through for bolt
Bolt penetration hole, the bolt are connected through bolt penetration hole with threaded hole.
5. spacecraft spherical high-pressure gas cylinder processing tool according to claim 4, it is characterised in that：The threaded hole is the bottom of along
The even circumferential arrangement of seat flange.
6. spacecraft spherical high-pressure gas cylinder processing tool according to claim 1, it is characterised in that：The pedestal is equipped with
Parallel to the axial perforative venthole of its revolution.
7. according to claim 1-6 any one of them spacecraft spherical high-pressure gas cylinder processing tools, it is characterised in that：The ring
The inner surface of shape gland is equipped with the annular gland positioning convex platform that radially extends, the annular gland positioning convex platform towards pedestal
Side form the stopping surface.
8. spacecraft spherical high-pressure gas cylinder processing tool according to claim 1, it is characterised in that：The base flange
The pedestal positioning convex platform radially extended is equipped with towards the one side of positioning region, outer circumferential surface and the annular of the pedestal positioning convex platform are pressed
The inner surface location fit of lid is with to annular gland radial positioning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983648 | 2017-08-08 | ||
| CN2017209836484 | 2017-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207372706U true CN207372706U (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721084717.4U Active CN207372706U (en) | 2017-08-08 | 2017-08-28 | Spacecraft spherical high-pressure gas cylinder processing tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262211A (en) * | 2018-11-01 | 2019-01-25 | 桂林电子科技大学 | A kind of storage sphere manufacturing method and its device |
| CN110695744A (en) * | 2019-09-30 | 2020-01-17 | 山西江淮重工有限责任公司 | Clamping tool and clamping method for alignment of part with concave-convex arc curved surface |
| CN113953593A (en) * | 2021-12-03 | 2022-01-21 | 辽宁美托科技股份有限公司 | Auxiliary fixing device for linear cutting of support lug of spherical gas cylinder |
-
2017
- 2017-08-28 CN CN201721084717.4U patent/CN207372706U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262211A (en) * | 2018-11-01 | 2019-01-25 | 桂林电子科技大学 | A kind of storage sphere manufacturing method and its device |
| CN110695744A (en) * | 2019-09-30 | 2020-01-17 | 山西江淮重工有限责任公司 | Clamping tool and clamping method for alignment of part with concave-convex arc curved surface |
| CN113953593A (en) * | 2021-12-03 | 2022-01-21 | 辽宁美托科技股份有限公司 | Auxiliary fixing device for linear cutting of support lug of spherical gas cylinder |
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