CN106239056A - Liquid rocket engine thrust chamber is by big cambered surface spiral case liquid trap processing method - Google Patents
Liquid rocket engine thrust chamber is by big cambered surface spiral case liquid trap processing method Download PDFInfo
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- CN106239056A CN106239056A CN201610754015.6A CN201610754015A CN106239056A CN 106239056 A CN106239056 A CN 106239056A CN 201610754015 A CN201610754015 A CN 201610754015A CN 106239056 A CN106239056 A CN 106239056A
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- arc
- cutter
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- liquid trap
- processing
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
- F02K9/62—Combustion or thrust chambers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of big cambered surface spiral case liquid trap processing method of liquid rocket engine thrust chamber, use three dedicated tools and a Special cutter holder, substep processing inner chamber arc profile, i.e. middle circle segmental arc cutter use vertical mode feed to process the medial surface of middle circle segmental arc, middle circle segmental arc cutter uses the mode feed processing lateral surface of middle circle segmental arc tilted, outer arc section cutter to use the mode feed processing outer arc section of inclination and inner arc section cutter to use vertical mode feed processing inner arc section.Using its good stability of technique of substep processing, the passing rate of processing of part is up to more than 98%, and operation is simple, and working (machining) efficiency is high, is suitable for mass production；Fluid present invention thrust chamber is by big cambered surface spiral case liquid trap processing method relative to traditional process, and its part quality is more preferable, and reliability is higher.
Description
Technical field
The present invention relates to the processing technique field of liquid rocket engine thrust chamber liquid trap, be specifically related to a kind of liquid fire
Arrow motor power room is by big cambered surface spiral case liquid trap processing method.
Background technology
Liquid-propellant rocket engine is the power set of aerospace craft, and motor power room is the assembly that it is important, thrust
Room is mainly made up of major parts such as thrust chamber head, thrust chamber body portion and jet pipe extensions.Liquid trap is that thrust chamber is important
One of part, it is the aggregate device of liquid propellant, and its major function is to enter head or body portion agent structure at propellant
Front set propellant, it is ensured that propellant enters the uniformity of body cavity.
Liquid rocket engine thrust chamber liquid trap many employings rustless steel, different according to actual needs, the circumference of its cambered surface
Angle is also not quite similar, and the angle of circumference of the cross section circular arc of liquid trap structure is relatively big greatly, as shown in Figure 1.
The Conventional processing methods of thrust chamber collector generally uses the kinds of processes such as cold bending, argon arc welding and excision forming
The mode that method combines is processed, but existing process all also exists many drawbacks:
1) position that during cold deformation bend pipe, steel pipe is different is respectively by the power of multi-form, and be squeezed inside liquid trap power
Causing this side thickness thickening, outside is stretched power and causes this side thinning, and the wall unevenness of liquid trap is even.It addition, cold deformation is curved
Plumber's skill can cause liquid trap cross section to be deformed, it is impossible to ensures the circularity in liquid trap cross section, the diameter of liquid trap annular and circle
Degree also cannot ensure；
2) argon arc welding by during bend pipe butt welding due to local heating, weld local can be deformed, it addition, table in weld
Face may produce oxide skin, and oxide skin comes off and can produce fifth wheel risk；
3) cutting technique ensures that the concordance difficulty of liquid trap breach is relatively big, when may cause final and other components weldings
The problems such as the laminating of existence local is the tightst；
4) all there is certain defect in the various techniques that the traditional diamond-making technique of liquid trap uses, and greatly reduces part raw
The qualification rate produced, technological process is the most loaded down with trivial details affects processing progress, is unfavorable for the quality stability of product.
Summary of the invention
Present invention aim to the deficiency for traditional diamond-making technique, it is provided that a kind of quality better, superior in quality and can
By the high liquid rocket engine thrust chamber of property by big cambered surface spiral case liquid trap processing method, the qualification rate of processing part up to
More than 98%.
For achieving the above object, the liquid rocket engine thrust chamber designed by the present invention adds with big cambered surface spiral case liquid trap
Work method, it is characterised in that: comprise the steps:
1) process and assemble welding breach: according to spiral case liquid trap standard component process and assemble welding breach on annulus blank；
2) the middle circle segmental arc of spiral case liquid trap inner chamber arc profile is processed: use middle circle segmental arc tool sharpening middle circle
Segmental arc；
3) outer arc section and the inner arc section of processing spiral case liquid trap inner chamber arc profile forms spiral case liquid trap
Inner chamber: use outer arc section tool sharpening outer arc section, uses inner arc section tool sharpening inner arc section；
4) detecting step 3) in the inner chamber arc profile that is processed to form: standard inner chamber arc profile detection model is divided into two
Section, puts into piecemeal and carries out inner chamber arc profile detection in inner chamber；
5) the external arc profile of spiral case liquid trap is processed: use universal cutter processing excircles arc shaped surface, it is ensured that inner chamber circular arc
Profile is concentric with the external arc profile of processing；
6) detecting step 5) in the external arc profile that is processed to form: standard external arc Surface inspection model is divided into two sections,
Standard external arc Surface inspection model is carried out with external arc profile piecemeal laminating detection；
7) wall thickness of spiral case liquid trap is detected: by the way of taking a little, measure the wall thickness of multiple position, take point mode concrete
For: through step 6) machine spiral case liquid trap after, take at equal intervals spiral case liquid trap axis multiple normal direction circumferences circle, each
Normal direction circumference circle the most uniformly takes multiple test point, and the wall thickness of all test points meets size and tolerance.
Further, described step 2) in, employing middle circle segmental arc tool sharpening middle circle segmental arc detailed process is: in Jiang
Between arc section cutter clamping on the vertical process tool installing hole of Special cutter holder, middle circle segmental arc cutter is from erection welding breach
Enter vertically into and carry out turning, while processing the medial surface of middle circle segmental arc, form pre-middle circle segmental arc；Then by middle circle
Segmental arc cutter clamping is on the inclination process tool installing hole of Special cutter holder, and middle circle segmental arc cutter uses the mode feed of inclination
The lateral surface of processing middle circle segmental arc, during processing lateral surface bottom the bottom circular arc of circular arc and pre-middle circle segmental arc connect cutter and formed
The middle circle segmental arc of inner chamber arc profile.
Further, described step 3) in, use outer arc section tool sharpening outer arc section, use inner arc section
Tool sharpening inner arc section, detailed process is: pacified by the inclination process tool of outer arc section cutter clamping to Special cutter holder
On dress hole, use the mode feed processing outer arc section tilted；By vertical to Special cutter holder of inner arc section cutter clamping
On process tool installing hole, use vertical mode feed processing inner arc section.
Further, described step 4) in, spiral case liquid trap inner chamber arc profile detection mode is particularly as follows: use printing opacity inspection
Survey method is classified into the standard inner chamber arc profile detection model mobile profile to all positions of circumference piecemeal of two sections and fits
Detection；Described step 6) in, spiral case liquid trap external arc Surface inspection mode is particularly as follows: use printing opacity detection method to be classified into two sections
The standard external arc Surface inspection model mobile profile to all positions of circumference piecemeal carry out laminating detection.
Further, described step 2) in, middle circle segmental arc cutter includes the first handle of a knife and the first truncated cone-shaped blade, described
First handle of a knife include the first handle of a knife body and with first handle of a knife body the first montant connected vertically, described first truncated cone-shaped blade
It is arranged on the end of described first montant.
Further, described step 3) in, outer arc section cutter includes the second handle of a knife and the second truncated cone-shaped blade, described
Second handle of a knife includes the second handle of a knife body, the second brace and connects the second handle of a knife body and the second connecting rod of the second brace, institute
State the second truncated cone-shaped blade and be arranged on the end of described second brace；Described second connecting rod is formed with described second handle of a knife body
The first angle and described second connecting rod consistent with the second angle opening direction that described second brace is formed.
Further, described step 3) in, inner arc section cutter includes the 3rd handle of a knife and the 3rd truncated cone-shaped blade, the 3rd
Handle of a knife includes that the 3rd handle of a knife body and the three-arc bar being connected with the 3rd handle of a knife body, described 3rd truncated cone-shaped blade are arranged on
The end of described three-arc bar.
Further, the diameter of described 3rd truncated cone-shaped blade is equal to the diameter of the second truncated cone-shaped blade, and the second round platform
The diameter of shape blade is more than the diameter of the first truncated cone-shaped blade.
Further, described step 2) and step 3) in, Special cutter holder includes Special cutter holder body, is arranged on Special cutter holder
On body side vertical process tool installing hole and be arranged on opposite side on Special cutter holder body inclination process tool install
Hole.
Further, described step 7) in, long along the circular arc in spiral case liquid trap cross section between adjacent two normal direction circumferences circle
Degree interval is not more than 20mm, and the test point quantity on each normal direction circumference circle is according to spiral case liquid trap cross section center of arc spot diameter
Determine.
The present invention compared with prior art, has the advantage that its good stability of technique using substep processing, part
Passing rate of processing is up to more than 98%, and operation is simple, and working (machining) efficiency is high, is suitable for mass production；Fluid present invention rocket is sent out
Motivation thrust chamber is by big cambered surface spiral case liquid trap processing method relative to traditional process, and its part quality is more preferable, reliably
Property is higher.
Accompanying drawing explanation
Fig. 1 is that the liquid rocket engine thrust chamber of processing method of the present invention processing shows by big cambered surface spiral case liquid trap structure
It is intended to；
Fig. 2 is the structural representation of middle circle segmental arc cutter in the present embodiment；
Fig. 3 is the structural representation of outside arc section cutter in the present embodiment；
Fig. 4 is the structural representation of inner arc section cutter in the present embodiment；
Fig. 5 is the structural representation of Special cutter holder in the present embodiment；
Fig. 6 be in the present embodiment on annulus blank process and assemble welding breach after structural representation；
Fig. 7 is the structural representation after the medial surface processing middle circle segmental arc in the present embodiment；
Fig. 8 is the structural representation after the lateral surface processing middle circle segmental arc in the present embodiment；
Fig. 9 is the structural representation after processing outer arc section in the present embodiment；
Figure 10 is the structural representation after processing inner arc section in the present embodiment；
Figure 11 is inner chamber arc profile detection schematic diagram in the present embodiment；
Figure 12 is the structural representation in the present embodiment after processing excircles arc shaped surface；
Figure 13 is the present embodiment China and foreign countries arc profile detection schematic diagrams.
Wherein: spiral case liquid trap 1, inner chamber 2, middle circle segmental arc cutter 3 are (wherein: first handle of a knife body the 3.1, first montant
3.2, the first truncated cone-shaped blade 3.3), outer arc section cutter 4 (wherein: second handle of a knife body the 4.1, second connecting rod 4.2,
Two brace the 4.3, second truncated cone-shaped blades 4.4), inner arc section cutter 5 (wherein: the 3rd handle of a knife body 5.1, three-arc bar
5.2, the 3rd truncated cone-shaped blade 5.3), Special cutter holder 6 (wherein: Special cutter holder body 6.1, vertical process tool installing hole 6.2,
Tilt process tool installing hole 6.3), annulus blank 7, erection welding breach 8, medial surface 9, pre-middle circle segmental arc 10, lateral surface
11, middle circle segmental arc 12, outer arc section 13, inner arc section 14, interior half model 15, inner chamber arc profile 16, external arc
Profile 17, outer half model 18.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, it is simple to more clearly understands this
Invention, but they do not constitute restriction to the present invention.
Middle circle segmental arc cutter, outer arc section cutter and inner arc section cutter in following example are specifically
Cutter, Special cutter holder is also specific tool rest.As in figure 2 it is shown, middle circle segmental arc cutter 3 includes the first handle of a knife and the first truncated cone-shaped
Blade 3.3, the first handle of a knife includes the first handle of a knife body 3.1 and first montant 3.2 connected vertically with the first handle of a knife body 3.1,
First truncated cone-shaped blade 3.3 is arranged on the end of the first montant 3.2.In order to reduce cutting resistance, the first truncated cone-shaped blade 3.3 circle
Angle can not be excessive, its a diameter of 4mm；Meanwhile, the spiral case liquid collecting needing to process to ensure the first handle of a knife front end to be fully inserted into
Device inner chamber, its first montant 3.2 length about 80mm.
As it is shown on figure 3, outer arc section cutter 4 includes the second handle of a knife and the second truncated cone-shaped blade 4.4, the second handle of a knife includes
Second handle of a knife body the 4.1, second brace 4.3 and connect the second handle of a knife body 4.1 and the second connecting rod 4.2 of the second brace 4.3,
Second truncated cone-shaped blade 4.4 is arranged on the end of the second brace 4.3；Second connecting rod 4.2 and the second handle of a knife body 4.1 are formed
First angle and the second connecting rod 4.2 are consistent with the second angle opening direction that the second brace 4.3 is formed.In order to accelerate work efficiency
Rate, a diameter of 8mm of the second truncated cone-shaped blade 4.4, meanwhile, need the snail of processing to ensure that the second handle of a knife can be fully inserted into
Shell liquid trap inner chamber, the front end of the second handle of a knife includes second connecting rod 4.2 and second brace 4.3 two parts being all in tilted layout,
And second the first angle of being formed of connecting rod 4.2 and the second handle of a knife body 4.1 be acute angle (preferably 70 °), the second connecting rod 4.2
The second angle formed with the second brace 4.3 is obtuse angle (preferably 135 °).
As shown in Figure 4, inner arc section cutter 5 includes that the 3rd handle of a knife and the 3rd truncated cone-shaped blade 5.3, the 3rd handle of a knife include
3rd handle of a knife body 5.1 and the three-arc bar 5.2 being connected with the 3rd handle of a knife body 5.1, the 3rd truncated cone-shaped blade 5.3 is arranged on
The end of three-arc bar 5.2.In like manner, in order to accelerate working (machining) efficiency, a diameter of 8mm of the 3rd truncated cone-shaped blade 5.3, meanwhile,
Needing the spiral case liquid trap inner chamber of processing for ensureing that the 3rd handle of a knife front end can be fully inserted into, the Front-end Design of the 3rd handle of a knife becomes the
Three-arc bar 5.2, the radius of its circular arc is preferably 150mm.
Therefore, three particular tool need the diameter meeting the 3rd truncated cone-shaped blade 5.3 equal to the second truncated cone-shaped blade 4.4
Diameter, and the diameter of the second truncated cone-shaped blade 4.4 is more than the diameter of the first truncated cone-shaped blade 3.3.
It addition, the middle circle segmental arc 12 of inner chamber arc profile needs point two parts to complete, in wherein in the present embodiment
Between arc section 12 lateral surface 11 need to by cutter tilt stretch in inner chamber process, it addition, outer arc section 13 adds cutter in man-hour also
Inclination is needed to go deep into relevant position, accordingly, it would be desirable to specific Special cutter holder 6 can tilt to install cutter, as it is shown in figure 5, special
Tool rest 6 includes Special cutter holder body 6.1, is arranged on two vertical processing being vertically arranged of side on Special cutter holder body 6.1
Cutting tool installation manner hole 6.2 and be arranged on two of opposite side on the Special cutter holder body 6.1 inclination process tools being obliquely installed and install
Hole 6.3.
For certain model liquid engine thrust chamber head spiral case liquid trap, cross section center of arc spot diameter is Φ 274mm,
Cross section is big globoidal structure, and overall structure size is less, interior circular diameter only Φ 48mm, the wall thickness 3mm in cross section, and the opening of inner chamber
Port part is little, and inner chamber is big, and center of arc angle reaches about 290 °, and the processing method of this spiral case liquid trap is as follows:
1) process and assemble welding breach 8: according to spiral case liquid trap standard component process and assemble welding breach on annulus blank 7
8, simultaneously to facilitate the processing of follow-up inner chamber arc profile, as shown in Figure 6；
2) the middle circle segmental arc 12 of spiral case liquid trap 1 inner chamber arc profile 16 is processed: use middle circle segmental arc cutter 3 to process
Middle circle segmental arc, detailed process is: by the vertical process tool installing hole 6.2 of middle circle segmental arc cutter 3 clamping to Special cutter holder 6
On, middle circle segmental arc cutter 3 enters vertically into from erection welding breach 8 and carries out turning, processes the medial surface 9 of middle circle segmental arc 12
While form pre-middle circle segmental arc 10, as shown in Figure 7；Then by the inclination of middle circle segmental arc cutter 3 clamping to Special cutter holder 6
On process tool installing hole 6.3, middle circle segmental arc cutter 3 uses the lateral surface of the mode feed processing middle circle segmental arc 12 tilted
11, during processing lateral surface 11 bottom the bottom circular arc of circular arc and pre-middle circle segmental arc 10 connect cutter and formed in inner chamber arc profile
Between arc section, as shown in Figure 8；
3) outer arc section 13 and the inner arc section 14 of processing spiral case liquid trap 1 inner chamber arc profile 16 forms spiral case collection
The inner chamber 2 of liquid device: use outer arc section cutter 4 to process outer arc section 13, uses circle inside the processing of inner arc section cutter 5
Segmental arc 14, detailed process is: by outer arc section cutter 4 clamping to the inclination process tool installing hole 6.3 of Special cutter holder 6,
Use the mode feed processing outer arc section 13 tilted, as shown in Figure 9；By inner arc section cutter 5 clamping to Special cutter holder 6
Vertical process tool installing hole 6.2 on, use vertical mode feed processing inner arc section 14, as shown in Figure 10；
4) detecting step 3) in the inner chamber arc profile 16 that is processed to form: owing to the opening of spiral case liquid trap 1 inner chamber 2 is little,
Intracavity is big, and one piece of overall standard inner chamber arc profile detection model cannot be introduced in inner chamber, therefore, by standard inner chamber arc profile
Detection model is divided into two sections, and in utilizing two sections, half model 15 detects at twice, and in two sections, half model 15 is put into piecemeal
Inner chamber 2 carries out inner chamber arc profile 16 detect, as shown in figure 11, i.e. use the standard inner chamber that printing opacity detection method is classified into two sections
The arc profile detection model the most mobile profile to all positions of circumference piecemeal carries out laminating detection；
5) the external arc profile 17 of spiral case liquid trap 1 is processed: use universal cutter processing excircles arc shaped surface 17, it is ensured that inner chamber
Arc profile 16 is concentric with the external arc profile 17 of processing, to guarantee to process the critical size of wall thickness；
6) detecting step 5) in the external arc profile 17 that is processed to form: identical with the principle of inner chamber arc profile 16 detection,
Standard exocoel arc profile detection model is divided into two sections, utilizes two sections of outer half models 18 to detect at twice, outside two sections
Half model 18 carries out laminating detection piecemeal with external arc profile 17, as shown in figure 13, i.e. uses printing opacity detection method to be classified into two
The mobile profile to all positions of the standard external arc Surface inspection model of section circumference piecemeal carries out laminating detection；
7) wall thickness of spiral case liquid trap is detected: by the way of taking a little, measure the wall thickness of multiple position, take point mode concrete
For: through step 6) machine spiral case liquid trap after, take five normal direction circumferences circle of spiral case liquid trap axis at equal intervals, each
Normal direction circumference circle the most uniformly takes 16 test points, and the wall thickness of all test points meets size and tolerance.
Above-mentioned steps 7) in detection wall thickness principle as follows:
Between adjacent two normal direction circumferences circle, the arc length along spiral case liquid trap cross section is spaced no more than 20mm, Mei Gefa
Test point quantity on circumference circle determines according to spiral case liquid trap cross section center of arc spot diameter, and Ji Dang center spot diameter is less than
200mm, each normal direction circumference circle circumferentially takes 8 and all layouts；When center spot diameter more than 200mm less than 400mm, each normal direction
Circumference circle circumferentially takes 16 and all layouts；When center spot diameter more than 400mm less than 600mm, each normal direction circumference circle is circumferentially
Take 24 all to layout；When center spot diameter circumferentially takes 32 more than 600mm all layout less than 800mm, each normal direction circumference circle；
When center spot diameter circumferentially takes 40 all layout more than 800mm, each normal direction circumference circle.
Use three dedicated tools and a Special cutter holder, substep processing inner chamber arc profile, i.e. middle circle segmental arc cutter
Use vertical mode feed to process the medial surface of middle circle segmental arc, middle circle segmental arc cutter uses the mode feed processing tilted
The lateral surface of middle circle segmental arc, outer arc section cutter use the mode feed processing outer arc section tilted and inner arc section
Cutter uses vertical mode feed processing inner arc section.Use its good stability of technique of substep processing, the processing of part
Qualification rate is up to more than 98%, and operation is simple, and working (machining) efficiency is high, is suitable for mass production；Fluid present invention rocket engine
Thrust chamber is by big cambered surface spiral case liquid trap processing method relative to traditional process, and its part quality is more preferable, and reliability is more
High.
Claims (10)
1. a liquid rocket engine thrust chamber is by big cambered surface spiral case liquid trap processing method, it is characterised in that: include as follows
Step:
1) process and assemble welding breach (8): according to spiral case liquid trap standard component at annulus blank (1) upper process and assemble welding breach
(8)；
2) the middle circle segmental arc (12) of processing spiral case liquid trap (1) inner chamber arc profile (16): use middle circle segmental arc cutter (3)
Processing middle circle segmental arc (12)；
3) outer arc section (13) and the inner arc section (14) of processing spiral case liquid trap (1) inner chamber arc profile (16) forms snail
The inner chamber (2) of shell liquid trap: use outer arc section cutter (4) processing outer arc section (13), uses inner arc section cutter
(5) processing inner arc section (14)；
4) detecting step 3) in the inner chamber arc profile (16) that is processed to form: standard inner chamber arc profile detection model is divided into two
Section, puts into piecemeal and carries out inner chamber arc profile (16) detection in inner chamber (2)；
5) the external arc profile (17) of processing spiral case liquid trap (1): use universal cutter processing excircles arc shaped surface (17), it is ensured that interior
Chamber arc profile (16) is concentric with the external arc profile (17) of processing；
6) detecting step 5) in the external arc profile (17) that is processed to form: standard external arc Surface inspection model is divided into two sections,
Standard external arc Surface inspection model is carried out with external arc profile (17) piecemeal laminating detection；
7) wall thickness of detection spiral case liquid trap (1): measure the wall thickness of multiple position by the way of taking a little, take point mode concrete
For: through step 6) machine spiral case liquid trap after, take at equal intervals spiral case liquid trap axis multiple normal direction circumferences circle, each
Normal direction circumference circle the most uniformly takes multiple test point, and the wall thickness of all test points meets size and tolerance.
Liquid rocket engine thrust chamber the most according to claim 1 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 2) in, employing middle circle segmental arc cutter (3) processing middle circle segmental arc (12) detailed process is: by centre
Arc section cutter (3) clamping on the vertical process tool installing hole (6.2) of Special cutter holder (6), middle circle segmental arc cutter (3) from
Erection welding breach (8) enters vertically into and carries out turning, formed while processing the medial surface (9) of middle circle segmental arc (12) pre-in
Between arc section (10)；Then by the inclination process tool installing hole of middle circle segmental arc cutter (3) clamping to Special cutter holder (6)
(6.3), on, middle circle segmental arc cutter (3) uses the lateral surface (11) of mode feed processing middle circle segmental arc (12) tilted, and adds
Circular arc bottom during work lateral surface (11) connects cutter formation inner chamber arc profile (16) with the bottom circular arc of pre-middle circle segmental arc (10)
Middle circle segmental arc (12).
Liquid rocket engine thrust chamber the most according to claim 1 and 2 by big cambered surface spiral case liquid trap processing method, its
It is characterised by: described step 3) in, use outer arc section cutter (4) processing outer arc section (13), use inner arc section
Cutter (5) processing inner arc section (14), detailed process is: by outer arc section cutter (4) clamping inclining to Special cutter holder (6)
Tiltedly on process tool installing hole (6.3), use mode feed processing outer arc section (13) tilted；By inner arc section cutter
(5) clamping is on the vertical process tool installing hole (6.2) of Special cutter holder (6), uses circle inside vertical mode feed processing
Segmental arc (14).
Liquid rocket engine thrust chamber the most according to claim 3 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 4) in, spiral case liquid trap (1) inner chamber arc profile (16) detection mode is particularly as follows: use printing opacity detection
Method is classified into the standard inner chamber arc profile detection model mobile profile to all positions of circumference piecemeal of two sections and carries out laminating inspection
Survey；Described step 6) in, spiral case liquid trap (1) external arc profile (17) detection mode is particularly as follows: use printing opacity detection method to divide
It is that the standard external arc Surface inspection model mobile profile to all positions of circumference piecemeal of two sections carries out laminating detection.
Liquid rocket engine thrust chamber the most according to claim 3 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 2) in, middle circle segmental arc cutter (3) includes the first handle of a knife and the first truncated cone-shaped blade (3.3), described
One handle of a knife include the first handle of a knife body (3.1) and with the first handle of a knife body (3.1) the first montant connected vertically (3.2), described
First truncated cone-shaped blade (3.1) is arranged on the end of described first montant (3.2).
Liquid rocket engine thrust chamber the most according to claim 5 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 3) in, outer arc section cutter (4) includes the second handle of a knife and the second truncated cone-shaped blade (4.4), described
Two handle of a knifes include the second handle of a knife body (4.1), the second brace (4.3) and connect the second handle of a knife body (4.1) and the second brace
(4.3) the second connecting rod (4.2), described second truncated cone-shaped blade (4.4) is arranged on the end of described second brace (4.3)；
The first angle that described second connecting rod (4.2) and described second handle of a knife body (4.1) are formed and described second connecting rod (4.2)
Consistent with the second angle opening direction that described second brace (4.3) is formed.
Liquid rocket engine thrust chamber the most according to claim 6 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 3) in, inner arc section cutter (5) includes the 3rd handle of a knife and the 3rd truncated cone-shaped blade (5.3), the 3rd cutter
Handle includes the 3rd handle of a knife body (5.1) and the three-arc bar (5.2) being connected with the 3rd handle of a knife body (5.1), described 3rd circle
Platform shape blade (5.3) is arranged on the end of described three-arc bar (5.2).
Liquid rocket engine thrust chamber the most according to claim 7 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: the diameter of described 3rd truncated cone-shaped blade (5.3) is equal to the diameter of the second truncated cone-shaped blade (4.4), and the second round platform
The diameter of shape blade (4.4) is more than the diameter of the first truncated cone-shaped blade (3.3).
Liquid rocket engine thrust chamber the most according to claim 3 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 2) and step 3) in, Special cutter holder (6) includes Special cutter holder body (6.1), is arranged on Special cutter holder originally
Body (6.1) is gone up the vertical process tool installing hole (6.2) of side and is arranged on the inclination of the upper opposite side of Special cutter holder body (6.1)
Process tool installing hole (6.3).
Liquid rocket engine thrust chamber the most according to claim 3 is by big cambered surface spiral case liquid trap processing method, and it is special
Levy and be: described step 7) in, between adjacent two normal direction circumferences circle, the arc length along spiral case liquid trap cross section is spaced little
Test point quantity on 20mm, each normal direction circumference circle determines according to spiral case liquid trap cross section center of arc spot diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754015.6A CN106239056B (en) | 2016-08-29 | 2016-08-29 | The big cambered surface spiral case liquid trap processing method of liquid rocket engine thrust chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754015.6A CN106239056B (en) | 2016-08-29 | 2016-08-29 | The big cambered surface spiral case liquid trap processing method of liquid rocket engine thrust chamber |
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| CN106239056A true CN106239056A (en) | 2016-12-21 |
| CN106239056B CN106239056B (en) | 2018-03-23 |
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| CN (1) | CN106239056B (en) |
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| CN107138475A (en) * | 2017-06-20 | 2017-09-08 | 西安航天发动机厂 | Fifth wheel control method with annular slot type chamber process |
| CN110346233A (en) * | 2019-07-31 | 2019-10-18 | 中国人民解放军海军工程大学 | A kind of new coating flushing resistance test platform |
| CN118321578A (en) * | 2024-06-17 | 2024-07-12 | 成都和鸿科技股份有限公司 | Annular special-shaped groove processing method |
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| CN107138475A (en) * | 2017-06-20 | 2017-09-08 | 西安航天发动机厂 | Fifth wheel control method with annular slot type chamber process |
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| CN110346233A (en) * | 2019-07-31 | 2019-10-18 | 中国人民解放军海军工程大学 | A kind of new coating flushing resistance test platform |
| CN118321578A (en) * | 2024-06-17 | 2024-07-12 | 成都和鸿科技股份有限公司 | Annular special-shaped groove processing method |
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| CN106239056B (en) | 2018-03-23 |
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