CN109551308A - A kind of processing method of high-precision valve component - Google Patents
A kind of processing method of high-precision valve component Download PDFInfo
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- CN109551308A CN109551308A CN201811475844.6A CN201811475844A CN109551308A CN 109551308 A CN109551308 A CN 109551308A CN 201811475844 A CN201811475844 A CN 201811475844A CN 109551308 A CN109551308 A CN 109551308A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Lift Valve (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a kind of processing methods of high-precision valve component.Include the following steps: that a. matches part I and part II by match grinding, part I is pressed into later in part II and fixed；B. the diameter D1 of II mesoporous a of part is measured, the fit clearance θ between hole a and valve part III, θ=0.005~0.009mm are then guaranteed by III outer circle of match grinding valve part；C. calculate valve part III end face d to valve part III annular groove end face e thickness L, according to the thickness L of calculating grinding end face d；D. under the premise of guaranteeing size A described in step c and size B, the interval S 1 between end face a and end face c, S1=22 ± 0.05mm are guaranteed by the end face c of grinding end face a or valve part III.In the requirement for the fit dimension for not only meeting high-precision valve component but also the air-tightness of high-precision valve component has been effectively ensured in the present invention.
Description
Technical field
The present invention relates to valve module manufacture field, especially a kind of processing method of high-precision valve component.
Background technique
Valve module has extensively as sealing element hydraulic, in baric systerm in fields such as Aeronautics and Astronautics, the energy, automobiles
General application.Valve module required precision is high, with radial fit and the multidirectional cooperation requirement axially engaged: matching in guarantee axis, hole
In the case where closing gap θ=0.005~0.009mm, 0.5 ± 0.05mm of aperture size, 0.02~0.05mm of overlapping dimension requirement,
It also needs to guarantee interval S 1=22 ± 0.05mm between end face a and end face c simultaneously；Moreover, when the aviation kerosine for being passed through 12MPa
When high pressure, also needs to meet leakproofness performance test and require (referring to Fig. 1).Using traditional processing method, there are the following problems:
It 1), can not be simultaneously in the case where guaranteeing that 0.5 ± 0.05mm of aperture size, 0.02~0.05mm of overlapping dimension are required
Guarantee size S1=22 ± 0.05mm.
2) when valve part III is in Fig. 1 location status, it may be assumed that when A=0.02~0.05mm, B=0.5 ± 0.05mm, C
Mouth is passed through the aviation kerosine of 12MPa, and D mouthfuls of amount of leakage not can guarantee less than 10ml/min.
3) when valve part III is in Fig. 2 location status, it may be assumed that when A=0.5 ± 0.05mm, B=0.02~0.05mm, H
Mouth is passed through the aviation kerosine of 12MPa, and D mouthfuls of amount of leakage not can guarantee less than 10ml/min.
Summary of the invention
The object of the present invention is to provide a kind of processing methods of high-precision valve component.The present invention is not only meeting height
The requirement of the fit dimension of precision valve module, and the air-tightness of high-precision valve component has been effectively ensured.
Technical solution of the present invention: a kind of processing method of high-precision valve component includes the following steps:
A. part I and part II are matched by match grinding, part I is pressed into later in part II and fixed；
B. the diameter D1 of II mesoporous a of part is measured, hole a and valve part are then guaranteed by III outer circle of match grinding valve part
Fit clearance θ between III, θ=0.005~0.009mm；
C. dimension chain is constructed by following formula, calculates the end face d of valve part III to the annular groove end face e of valve part III
Thickness L,
L=D2+A-B；
Wherein, D2 is the diameter of II mesoporous b of part；
Size A is the overlapping dimension between thickness L and hole b side wall, A=0.02~0.05mm at this time；
Size B is the gap between end face d and hole b side wall, B=0.5 ± 0.05mm at this time；
When calculating, by dimension D 2, A, B is converted to middle difference size；
End face d is ground according to the thickness L of calculating；
D. under the premise of guaranteeing size A described in step c and size B, pass through the end of grinding end face a or valve part III
Face c guarantees the interval S 1 between end face a and end face c, S1=22 ± 0.05mm.
In the processing method of high-precision valve component above-mentioned, positioned at the hole two sides a two hole b hole edge on same section
Offset control within the scope of 0.015mm.
The verticality of hole a described in the processing method of high-precision valve component above-mentioned and hole b is≤0.015mm；Described
Hole a and the bright and clean sharp edge of hole b circumference junction control within the scope of 0.02mm.
In step d described in the processing method of high-precision valve component above-mentioned, the interval S 1 between end face a and end face c is pressed
State step processing:
D1. the actual diameter D2 ' that hole b is measured with grouping feeler gauge, the actual (real) thickness L ' of annular groove end face e is measured with micrometer,
The value of B is calculated, wherein B=D2 '+A-L ', wherein any value of the A between 0.02~0.05mm, remembers in specific record sheet
Record the value of B value and corresponding A；
D2. the actual value of minimum distance T of the end face f from hole b hole wall of part II is measured with slide calliper rule；
D3. micrometric depth gauge is transferred to after value is T+B and is fastened, the axis of micrometric depth gauge is put in the b of valve part II later
It is interior；
D4. dial gauge is fitted into measuring tool, and the measuring staff that dial gauge stretches out measuring tool is used into the standard component having a size of 22mm
Alignment, protrudes into the measuring staff for stretching out measuring tool after alignment in the hole of part I, by being measured between the reality between end face a and end face c to table
Value away from S1 '；
When S1 ' is greater than 22+0.05mm, the match grinding size list of end face a is outputed；Guarantee size S1 '=22 ± 0.05mm；
When S1 ' is less than 22-0.05mm, the match grinding size list of end face c is outputed, guarantees size S1 '=22 ± 0.05mm.
Annular groove end face e outer rim described in the processing method of high-precision valve component above-mentioned and the control of end face d edge chamfering exist
Within the scope of 0.02mm.
The utility model has the advantages that compared with prior art, the continuous research that the present invention passes through the processing method to high-precision valve component
And exploration, the processing method for having finally obtained a kind of high-precision valve component, this method make the valve module and meanwhile guarantee radial clearance,
In the case where aperture, lap and location dimension, while meeting the flow test of valve module, and this method is rationally, accurately, efficiently
Rate, this processing method not only shorten the production cycle, effectively meet high-precision design requirement.Since the valve module is new
Structure use on h type engine h is more and more frequent, thus the processing method be like parts from now on development established it is solid
Basis opens new road.
Detailed description of the invention
Fig. 1 is one of location status schematic diagram of valve part III in high-precision valve component；
Fig. 2 is another location status schematic diagram of valve part III in high-precision valve component；
Fig. 3 is the dimension chain of the thickness L of annular groove end face e；
Fig. 4 is the structural schematic diagram of valve part III；
Fig. 5 is the 1 process and assemble schematic diagram of interval S between end face a and end face c；
Fig. 6 is hermeticity experiment schematic diagram when valve part III is in the position Fig. 1；
Fig. 7 is hermeticity experiment schematic diagram when valve part III is in the position Fig. 2.
Appended drawing reference: 1- part I, 2- part II, 3- valve part III, the end face 4- a, 5- end face b, the hole 6- a, 7- end face d,
8- annular groove end face e, the hole 9- b, 10- end face c, the end face 11- f, 12- measuring tool, 13- fixture I, 14- micrometric depth gauge, 15- dial gauge,
16- edge chamfering, 17- air-tightness fixture I, 18- air-tightness fixture II.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment.A kind of processing method of high-precision valve component, includes the following steps:
A. part I 1 and part II 2 are matched by match grinding, part I 1 is pressed into later in part II 2 and fixed；
B. the diameter D1 of II 2 mesoporous a6 of part is measured, hole a6 and valve are then guaranteed by III 3 outer circle of match grinding valve part
Fit clearance θ between part III 3, θ=0.005~0.009mm；
C. by following formula building dimension chain (referring to Fig. 3), the end face d7 of valve part III 3 is calculated to valve part III 3
Annular groove end face e8 thickness L,
L=D2+A-B；
Wherein, D2 is the diameter of II 2 mesoporous b9 of part；
Overlapping dimension (referring to Fig. 1) of the A between thickness L and hole b9 side wall, A=0.02~0.05mm；
Gap (referring to Fig. 1) of the B between end face d7 and hole b9 side wall, i.e. aperture size, B=0.5 ± 0.05mm；
When calculating, by dimension D 2, A, B is converted to middle difference size；
Specifically calculate down:
Since 0.5 ± 0.05mm of aperture size is closed-loop, defined according to closed-loop in dimension chain, size 0.5 ±
The tolerance " ± 0.05mm " of 0.05mm will give size L, D2 and A, that is to say, that: the sum of tolerance of size L, D2 and A is equal to B's
Tolerance；
End face d7 is ground according to the thickness L of calculating later；That is, be 3.325~3.37mm by size L is calculated, this
Sample can show that the width of the annular groove of valve part III 3 and hole b9 are made interchangeability to guarantee overlapping dimension by face grinding d7
A=0.02~0.05mm and aperture size B=0.5 ± 0.05mm；
D. guaranteeing size A described in step c and under the premise of size B, pass through grinding end face a4 or valve part III 3
End face c10 guarantees the interval S 1 between end face a4 and end face c10, S1=22 ± 0.05mm.
Offset of the hole edge on same section positioned at two hole b9 of the hole two sides a6 controls within the scope of 0.015mm；?
When fixed valve is in overlapping and aperture size positions, the actual value for determining length dimension T+ (0.5 ± 0.05) is had to.If
The offset of two holes hole edge on same section is excessive, and the corresponding margin of tolerance of length dimension T value is big, not can control corresponding size
Chain, and then it is unable to satisfy air-tightness requirement.
The verticality of hole a6 above-mentioned and hole b9 is≤0.015mm；The hole a6 is bright and clean with hole b9 circumference junction
Sharp edge controls within the scope of 0.02mm.When processing part II 2, need to control the verticality and hole b9 device to hole of hole b9 device to hole a6
The sharp edge quality of a6 circumference junction just can ensure that flow test is unaffected in this way.
In aforementioned step d, the interval S 1 between end face a4 and end face c10 is processed in the steps below:
D1. the progress trial assembly of part I 1, part II 2 and valve part III 3 is matched first, measures hole using grouping feeler gauge later
The actual diameter D2 ' of b9 measures the actual (real) thickness L ' of annular groove end face e8 with micrometer, calculates the value of B, wherein B=D2 '+A-
L ', wherein any value of the A between 0.02~0.05mm, records the value of B value and corresponding A in specific record sheet；Ying
Part lot number and corresponding A, B and L are recorded in specific record sheet ' actual value, so that subsequent handling facilitates test.
D2. the actual value of minimum distance T of the end face f11 from hole b9 hole wall of part II 2 is measured with slide calliper rule；
D3. micrometric depth gauge 14 is transferred to after value is T+B and is fastened, the axis of micrometric depth gauge 14 is put in into valve part II later
In 2 b9；It reuses fixture I 13 later micrometric depth gauge 14 is fixed at II 2 end face f11 of part (referring to Fig. 5)；
D4. dial gauge 15 is fitted into measuring tool 12 (referring to Fig. 5), and the measuring staff that dial gauge 15 stretches out measuring tool 12 is used into ruler
The very little standard component for 22mm is aligned, and is protruded into the measuring staff for stretching out measuring tool 12 in the hole of part I 1 after alignment, by measuring end to table
The value of practical interval S 1 ' between face a4 and end face c10；
When S1 ' is greater than 22+0.05mm, the match grinding size list of end face a4 is outputed；Guarantee size S1 '=22 ± 0.05mm；
When S1 ' is less than 22-0.05mm, the match grinding size list of end face c10 is outputed, guarantees size S1 '=22 ± 0.05mm.
Assembly process is as examination assembly process method, and difference is not have to output length package size list, it is intended that verifying
When meeting the requirement of 0.02~0.05mm of 0.5 ± 0.05mm of aperture size and overlapping dimension, at the same also to meet one having a size of
22±0.05mm。
Annular groove end face e8 outer rim above-mentioned and end face d7 edge chamfering 16 control within the scope of 0.02mm (referring to fig. 4).
Applicant carried out following air-tight tests, and steps are as follows:
A. when valve part III 3 is in Fig. 1 location status (referring to Fig. 1 and Fig. 6), it may be assumed that when A be overlapping dimension 0.02~
When 0.05mm, B are 0.5 ± 0.05mm of aperture size, it is passed through the aviation kerosine of 12MPa to C mouthfuls, measures D mouthfuls of amount of leakage.
Valve module: being fitted into air-tightness fixture I 17 by gymnastics conduct by Fig. 6, the size value S1 ' recorded according to assembly process
Micrometer on mobile air-tightness fixture I, micrometer moving range are S1 '-(0.05-A), logical oily from C mouthfuls, time holding 1~
10 minutes, the oil leak amount of D mouthfuls of measurement.Table 1 is D mouth amount of leakage when valve part III 3 is in Fig. 6 state, is obtained by this group of data
Know that D mouthfuls of amount of leakage are respectively less than 10ml/min.
Table 1
B. when valve part III 3 is in Fig. 2 location status (referring to fig. 2 and Fig. 7), i.e., A ' at this time is aperture size 0.5
± 0.05mm, B ' are 0.02~0.05mm of overlapping dimension, and the aviation kerosine of 12MPa is passed through to H mouthfuls, measure D mouthfuls of amount of leakage.
Concrete operations are as follows: part is fitted into air-tightness fixture II 18 by Fig. 7, according to the size value recorded in assembly process
Micrometer on S1 ', B mobile fixture, the moving range of micrometer are L+B+A, and wherein A is 0.02~0.05, are passed through to H mouthfuls
The aviation kerosine of 12MPa, 1~10min of retention time, the oil leak amount of D mouthfuls of measurement.Table 2 is that valve part III 3 is in Fig. 7 state
When D mouth amount of leakage, learn that D mouthfuls of amount of leakage are respectively less than 10ml/min by this group of data.
Table 2
Claims (5)
1. a kind of processing method of high-precision valve component, it is characterised in that: include the following steps:
A. part I (1) and part II (2) are matched by match grinding, later in part I (1) indentation part II (2) and fixed；
B. measure the diameter D1 of part II (2) mesoporous a (6), then by III (3) outer circle of match grinding valve part guarantee hole a (6) with
Fit clearance θ between valve part III (3), θ=0.005~0.009mm；
C. dimension chain is constructed by following formula, the end face d (7) for calculating valve part III (3) arrives the annular groove end of valve part III (3)
The thickness L of face e (8),
L=D2+A-B；
Wherein, D2 is the diameter of part II (2) mesoporous b (9)；
Size A is the overlapping dimension between thickness L and hole b (9) side wall, A=0.02~0.05mm at this time；
Size B is the gap between end face d (7) and hole b (9) side wall, B=0.5 ± 0.05mm at this time；
When calculating, by dimension D 2, A, B is converted to middle difference size；
End face d (7) are ground according to the thickness L of calculating；
D. guaranteeing size A described in step c and under the premise of size B, pass through grinding end face a (4) or valve part III (3)
End face c (10) guarantees the interval S 1 between end face a (4) and end face c (10), S1=22 ± 0.05mm.
2. the processing method of high-precision valve component according to claim 1, it is characterised in that: be located at the two of hole a (6) two sides
Offset of the hole edge of a hole b (9) on same section controls within the scope of 0.015mm.
3. the processing method of high-precision valve component according to claim 1, it is characterised in that: the hole a (6) and hole b
(9) verticality is≤0.015mm；The bright and clean sharp edge of the hole a (6) and hole b (9) circumference junction are controlled in 0.02mm model
In enclosing.
4. the processing method of high-precision valve component according to claim 1, it is characterised in that: in step d, end face a (4) with
Interval S 1 between end face c (10) is processed in the steps below:
D1. the actual diameter D2 ' that hole b (9) is measured with grouping feeler gauge, the actual (real) thickness of annular groove end face e (8) is measured with micrometer
L ' calculates the value of B, wherein B=D2 '+A-L ', wherein any value of the A between 0.02~0.05mm, in specific record sheet
Record the value of B value and corresponding A；
D2. the actual value of minimum distance T of the end face f (11) from hole b (9) hole wall of part II (2) is measured with slide calliper rule；
D3. micrometric depth gauge (14) is transferred to after value is T+B and is fastened, the axis of micrometric depth gauge (14) is put in into valve part II later
(2) in b (9)；
D4. dial gauge (15) is fitted into measuring tool (12), and by dial gauge (15) stretch out measuring tool (12) measuring staff use having a size of
The standard component of 22mm is aligned, and is protruded into the measuring staff for stretching out measuring tool (12) in the hole of part I (1) after alignment, by measuring end to table
The value of practical interval S 1 ' between face a (4) and end face c (10)；
When S1 ' is greater than 22+0.05mm, the match grinding size list of end face a (4) is outputed；Guarantee size S1 '=22 ± 0.05mm；
When S1 ' is less than 22-0.05mm, the match grinding size list of end face c (10) is outputed, guarantees size S1 '=22 ± 0.05mm.
5. the processing method of high-precision valve component according to claim 1, it is characterised in that: annular groove end face e (8) outer rim and
End face d (7) edge chamfering (16) controls within the scope of 0.02mm.
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