CN107782220A - A kind of fast precise sealing cone axial dimension measurement apparatus - Google Patents
A kind of fast precise sealing cone axial dimension measurement apparatus Download PDFInfo
- Publication number
- CN107782220A CN107782220A CN201710970700.7A CN201710970700A CN107782220A CN 107782220 A CN107782220 A CN 107782220A CN 201710970700 A CN201710970700 A CN 201710970700A CN 107782220 A CN107782220 A CN 107782220A
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- CN
- China
- Prior art keywords
- amesdial
- sealing cone
- measurement apparatus
- measurement
- axial dimension
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of fast precise sealing cone axial dimension measurement apparatus, it includes：Amesdial (1), adapter sleeve (2), intermediate sleeve (3), guide sleeves (4), measurement bar (5)；Amesdial (1) is used for showing measured value, adapter sleeve (2) is used for adjusting and locking amesdial (1), intermediate sleeve (3) is used for connecting adapter sleeve (2) and guide sleeves (4), and guide sleeves (4) endoporus is cylindrical for gap cooperation with measurement bar (5).The present invention can accurate measurement processing actual size, measurement accuracy is high and reproducible, and operating personnel realize 100% measurement to product in process, and the accuracy of detection of product is improved while production efficiency is improved.
Description
Technical field
The invention belongs to measurement apparatus technical field, is related to a kind of fast precise sealing cone axial dimension measurement apparatus.
Background technology
Common high pressure sealing form has flat seal, conical surface seal.Conical surface seal have it is compact-sized, contact surface is become
The characteristics of narrow.This to be sealed under certain sealing force effect, its seal pressure greatly increases, and easily reaches sealing.It is close in guarantee
On the premise of envelope, compared with flat seal, linear sealing is formed with the contact force of minimum, the sealing force applied is smaller.The opposing party
Face, cone seal formula coordinates in the case of friction, compared with flat seal, by the damage phase of solid particle and medium sediment
To smaller.In Electrocontrolled high-pressure common rail fuel injection system variable pump low-voltage fuel loop, the design of delivery valve is close using the conical surface
Seal structure.
Shown in Fig. 1, in variable pump low-voltage fuel loop, delivery valve is sealed by sealing cone and steel ball linear contact.
Variable pump is arranged in engine cylinder-body, and during cam is up, compression plunger spring, plunger is up, and oil return valve is closed, plunger
Fuel pressure in the high pressure chest of head persistently rise be finally reached it is critical, when fuel oil critical pressure is more than pre-pressure of the spring steel ball from
Sealing cone departs from, and high pressure fuel enters in common rail pipe.During plunger is up, before fuel pressure reaches critical, sealed taper
Face will ensure effectively to seal with steel ball, avoid high pressure leaks.Sealing cone is to the axial dimension of oil outlet valve spring mounting plane
Ensure that delivery valve opening pressure meets one of principal element of design requirement, when high pressure fuel reaches critical pressure, to can
Delivery valve is opened in time and plays vital effect, therefore sealing cone and sealing cone are to oil outlet valve spring mounting plane chi
It is very little to have higher precision index requirement.Wherein critical size 25.085 ± 0.015, φ 2.83 are exactly to control sealing cone to going out
The position of fuel tap spring mounting plane, the machining accuracy of the position dimension influences oil outlet valve spring pre compressed magnitude, with spring precompressed
The corresponding oil outlet valve spring pressure of contracting amount, directly affects delivery valve opening pressure.There is deviation all in high pressure leaks, machining accuracy
Opening pressure accuracy can be impacted, so as to variation pump performance indicators, cause high pressure fuel feed system reliability
Decline.
The method of conventional detection sealing cone to face size typically has three kinds：
The first：Special depth gauge measurement depth gauge lower portion thereof has a twice annular score line, line width ＜ 0.10mm, and two
It is depth dimensions tolerance between lower edge on bar groove, wherein a groove lower edge to sealing cone theory sectional dimension is maximum pole
Size is limited, edge to sealing cone theory sectional dimension is the minimum limit of size on another groove.Depth gauge structure is shown in Fig. 2 institutes
Show：
Using the holes of φ 5.2 in delivery valve as guiding, special depth gauge is inserted in the holes of φ 5.2, and confirms to plug in depth gauge
On earth, visually observation 25.085 ± 0.015mm of measured size outer faces whether on two annular score lines of depth gauge between lower edge,
Such as between two annular score lines, sealing cone to the size of oil outlet valve spring installation end face just meets technological requirement, such as locates
Outside two annular score lines, sealing cone to the size of oil outlet valve spring installation end face does not just meet technological requirement.
Second：Three-coordinates measuring machine measures.
The third：According to tested sealing cone structure design sample, mounting plane size is stretched out by comparative sample
Determine whether value processing is qualified.Such detection method has the advantages of easy to detect quick.
The method of conventional detection sealing cone to face size has following drawback：
The first measuring method：First, special depth gauge measurement is a value range, and measured size is in upper and lower pole
Both it had been to meet technological requirement in the range of limit.No matter whether measured size meets technological requirement, it can not reflect the reality of measured size
Actual value.Because measurement data is not actual value, operating personnel can not control feeding to ensure size requirement by numerical control program, but
Size requirement is ensured using Test-cut met by diligent measurement.Secondly, visually judge measured size end face whether in two annular score lines
It is interior, it is affected by human factors larger.Annular score line width very little, the distance between the upper edge of two annular score lines and lower edge were both
Tolerance value, limited by annular score line structure, the annular score line accuracy of manufacture is relatively low, is unsuitable for the inspection of high-precision requirement product.Only
The larger parts measurement of dimensional tolerance can be used for, for 25.085 ± 0.015mm measured values, machining accuracy to be high, can not accurately survey
Measure actual value.
Second of measuring method：First, limited by processing conditions, three coordinates can only detect small lot, head in production scene
Part product, inspection rate do not reach 100%, but because the part correlation processing dimension tolerance value is smaller, it is necessary to 100% measurement.Its
It is secondary, due to being Fine and Deep Hole detection, testing staff can not sight check position, misoperation is easily direct by measurement head in detection process
Encounter on sealing cone, cause measurement head to damage.
The third measuring method：Product need to be placed on during sample detection on verifying bench, with magnetic force dial framework and thousand points
Difference of height between table sample survey and mounting plane, if accessory size is undressed will to carry out secondary clamping in place.Delivery valve
Sealing cone is processed after plunger bushing nitridation in the four-shaft numerically controlled grinding machine of high accuracy.It is ground using forming grinding wheel clamped one timeHole and 90 ° of sealing cone, ensure form and position tolerance, the surface in sealing cone, oil outlet valve spring mounting plane and hole
Roughness, angle tolerance, dimensional tolerance.In the grinding process in check-valve cone and hole, sealing cone position dimension and
Aperture size feeds coordinate control, secondary clamping position error and small grinding allowance by numerically control grinder X, Z axis, does not allow plunger
The grinding of delivery valve secondary clamping is covered, so sealing cone position dimension and aperture size must can be examined accurately on lathe.
Although such method is easy to operate, the process of this product is seen, without operability.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is：A kind of fast precise sealing cone axial dimension measurement apparatus is provided, led to
Cross to special depth gauge Optimal Structure Designing, realize efficient, quantization, the position for detecting sealing cone of flexible (certain pore size scope)
Put.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides a kind of fast precise sealing cone axial dimension measurement apparatus,
It includes：Amesdial 1, adapter sleeve 2, intermediate sleeve 3, guide sleeves 4, measurement bar 5；Amesdial 1 is used for showing measured value, adapter sleeve
2 are used for adjusting and locking amesdial 1, and intermediate sleeve 3 is used for connecting adapter sleeve 2 and guide sleeves 4, the endoporus of guide sleeves 4 with outside measurement bar 5
Circle coordinates for gap.
Wherein, in addition to：To watch rim, for proofreading the initial reading of amesdial 1 in measurement apparatus, the institute of amesdial 1
The measured value of display is relative to the deviation to watch rim height dimension.
Wherein, the decrement of amesdial 1 can be adjusted by unclamping the adapter sleeve 2, for improving the sensitivity of amesdial 1.
Wherein, the small circle end face of the lower end of guide sleeves 4 is measuring basis, the end face when in use with measured size line
Plane is drawn to overlap.
Wherein, it is described to watch rim after completion of processing, survey the height value to watch rim, and the height value is write on into end face
On.
Wherein, it is described to position of being carved characters on watch rim close to cylindrical remote mesopore
Wherein, the selection of material of measurement bar 5 is carbide alloy YG 8, bending strength >=1500/ (N/mm2), hardness >=
89HRA。
Wherein, measurement process is：Before part is detected, watch rim will be placed on platform, measurement bar 5 withDraw
In guide hole positioning insertion centring ring, the measurement datum of guide sleeves 4 is tightly bonded with to watch rim end face, adapter sleeve 2 in release, adjusted
The decrement of whole amesdial 1 is in suitable location and fastened, and then then uses the pointer regulation of amesdial 1 to " 0 " position
Measurement apparatus behind " 0 " position examines part, and the locating surface of guide sleeves 4 completely contacts with sealing cone size marking plane, measurement dress
The numerical value for putting the display of amesdial 1 is relative to the deviation to watch rim height dimension, determines whether processing dimension accords with by deviation
Close technological requirement.
(3) beneficial effect
The fast precise sealing cone axial dimension measurement apparatus that above-mentioned technical proposal is provided, can accurate measurement processing
Actual size, measurement accuracy is high and reproducible, and operating personnel realize 100% measurement to product in process, are carrying
The accuracy of detection of product is improved while high efficiency.
Brief description of the drawings
Fig. 1 is variable pump assembly sketch in the prior art.
Fig. 2 is special depth gauge schematic diagram in the prior art.
Fig. 3 is piece test schematic diagram of the embodiment of the present invention.
Fig. 4 is measurement apparatus structural representation of the embodiment of the present invention.
Fig. 5 is adapter sleeve structural representation of the embodiment of the present invention.
Fig. 6 is intermediate sleeve structural representation of the embodiment of the present invention.
Fig. 7 is guide sleeves structural representation of the embodiment of the present invention.
Fig. 8 is measurement bar structural representation of the embodiment of the present invention.
Fig. 9 is the embodiment of the present invention to watch rim structural representation.
Embodiment
To make the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the present invention's
Embodiment is described in further detail.
As shown in Figures 3 to 8, the present embodiment measurement apparatus includes amesdial 1, adapter sleeve 2, intermediate sleeve 3, guide sleeves 4, survey
Gauge rod 5；Amesdial 1 is used for showing measured value, and this numerical value is relative to the deviation to watch rim height dimension；Adapter sleeve 2 is used
To adjust and lock amesdial 1, the decrement that adapter sleeve 2 can adjust amesdial 1 is unclamped, appropriate decrement can improve amesdial
1 sensitivity, adapter sleeve 2 is tightened after adjusting and fixes amesdial 1；Intermediate sleeve 3 is used for connecting adapter sleeve 2 and guide sleeves 4, guides
It is that gap coordinates that it is cylindrical with measurement bar 5, which to cover 4 endoporus, and measurement bar 5 should be able to flexibly move up and down no clamping stagnation in guide sleeves 4 and show
As the small circle end face of the lower end of guide sleeves 4 is measuring basis, and it is mutually overlapping that plane is drawn in the end face with measured size line when in use
It is folded；Measurement bar 5 is designed according to the structure of tested sealing cone.
As shown in figure 9, it is used for the initial reading for proofreading amesdial 1 in measurement apparatus to watch rim.To watch rim in completion of processing
Afterwards, this actual measurement height value is write on end face by accurate measurement to the height value (the size 25mm in Fig. 3) of watch rim with laser or electroprobe
On, position of carving characters should be close proximity to cylindrical remote mesopore
Before part is detected, watch rim will be placed on platform, measurement bar 5 withBullport positioning insertion positioning
In circle, the measurement datum of guide sleeves 4 is tightly bonded with to watch rim end face, adapter sleeve 2 in release, adjusts the compression of amesdial 1
Amount is in suitable location and fastens, and then by the pointer regulation of amesdial 1 to " 0 " position, the size of now measurement apparatus detection is just
It is the actual height size to watch rim.Part is examined to the measurement apparatus can behind " 0 " position, the measurement behind " 0 " position is filled
Putting to handle with care, notice that part not collide with measurement bar 5 in detection process, slowly to be arrived when inserting bullport
Bottom, pay attention to observing whether the locating surface of guide sleeves 4 completely contacts with sealing cone size marking plane, measurement apparatus amesdial 1 is aobvious
The numerical value shown is relative to the deviation to watch rim height dimension, and operating personnel just may know that whether processing dimension accords with by deviation
Technological requirement is closed, the coordinate dimension of feed shaft can also be accurately adjusted by deviation.
The present invention has following distinguishing feature：
1st, can the built-in sealing cone of accurate measurement to mounting plane processing dimension.Operator is direct from amesdial
Read actual processing value.
2nd, single measurement precision is high, duplicate measurements uniformity is good.Special measurement bar is simple in construction, fabrication process condition is easy to
Realize, accuracy of manufacture height, processing cost is low.In the range of certain size, by changing special measurement bar, with existing measurement hand
Handle reconfigures, you can built-in, similar structures, the accurate measurement of different size sealing cones to end face coordinate dimension are realized,
With certain flexibility, measurer manufacturing expense is saved.
3rd, special measurement bar the selection of material carbide alloy YG 8, bending strength >=1500/ (N/mm2), hardness >=89HRA.If
Measure gauge rod bottom to require to keep sharp edge, be linear contact lay with sealing cone.It is easy to wear at sharp edge when measurement bar access times are more, inspection
Error occurs in measured value.The selection of material carbide alloy YG 8 is anti-wear strong, sharp edge retention time length, reduces measurement error probability.
4th, connected by measuring handle by amesdial and special measurement bar are flexible, at the beginning of amesdial is demarcated to watch rim
Beginning reading, special measurement bar is fixed with built-in sealing cone bullport, fast and accurately measure built-in sealing cone to end
The actual size in face, intuitively reflect whether measured size meets processing request from amesdial indicating value.It is compared to existing special survey
Deep rule, detection method of the invention, can accurate measurement processing actual size, measurement accuracy is high and reproducible, operating personnel
100% measurement is realized to product in process, the accuracy of detection of product is improved while production efficiency is improved.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (8)
- A kind of 1. fast precise sealing cone axial dimension measurement apparatus, it is characterised in that including：Amesdial (1), adapter sleeve (2), intermediate sleeve (3), guide sleeves (4), measurement bar (5)；Amesdial (1) is used for showing measured value, and adapter sleeve (2) is used for adjusting With locking amesdial (1), intermediate sleeve (3) is used for connecting adapter sleeve (2) and guide sleeves (4), guide sleeves (4) endoporus and measurement bar (5) it is cylindrical to coordinate for gap.
- 2. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 1, it is characterised in that also include：It is right Watch rim, for proofreading the initial reading of amesdial in measurement apparatus (1), the measured value shown by the amesdial (1) is phase For the deviation to watch rim height dimension.
- 3. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 2, it is characterised in that unclamp described tight Gu set (2) can adjust the decrement of amesdial (1), for improving the sensitivity of amesdial (1).
- 4. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 3, it is characterised in that the guide sleeves (4) the small circle end face of lower end is measuring basis, and the end face is drawn plane with measured size line when in use and overlapped.
- 5. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 2, it is characterised in that described to watch rim After completion of processing, the height value to watch rim is surveyed, and the height value is write on end face.
- 6. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 5, it is characterised in that described to watch rim On carve characters position close to cylindrical remote mesopore
- 7. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 1, it is characterised in that the measurement bar (5) the selection of material is carbide alloy YG 8, bending strength >=1500/ (N/mm2), hardness >=89HRA.
- 8. fast precise sealing cone axial dimension measurement apparatus as claimed in claim 2, it is characterised in that measurement process For：Before part is detected, watch rim will be placed on platform, measurement bar (5) withBullport positioning insertion centring ring In, guide sleeves (4) measurement datum is tightly bonded with to watch rim end face, adapter sleeve (2) in release, adjustment amesdial (1) Decrement is in suitable location and fastened, and then by the pointer regulation of amesdial (1) to " 0 " position, then uses the survey behind " 0 " position Measure device and examine part, guide sleeves (4) locating surface completely contacts with sealing cone size marking plane, measurement apparatus amesdial (1) numerical value of display is relative to the deviation to watch rim height dimension, determines whether processing dimension meets technique by deviation It is required that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970700.7A CN107782220A (en) | 2017-10-18 | 2017-10-18 | A kind of fast precise sealing cone axial dimension measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970700.7A CN107782220A (en) | 2017-10-18 | 2017-10-18 | A kind of fast precise sealing cone axial dimension measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782220A true CN107782220A (en) | 2018-03-09 |
Family
ID=61434590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710970700.7A Pending CN107782220A (en) | 2017-10-18 | 2017-10-18 | A kind of fast precise sealing cone axial dimension measurement apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN107782220A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551308A (en) * | 2018-12-04 | 2019-04-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of processing method of high-precision valve component |
| CN112123270A (en) * | 2020-09-21 | 2020-12-25 | 包头钢铁（集团）有限责任公司 | Rubber plug fine-adjustment alignment connecting device |
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| CN201964853U (en) * | 2010-12-02 | 2011-09-07 | 贵州航太精密制造有限公司 | Measuring device for sealing inner conical surface of tube union |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN203811094U (en) * | 2014-02-19 | 2014-09-03 | 东风朝阳朝柴动力有限公司 | An engine air cylinder cap seat ring conical surface depth detection apparatus |
| CN106441031A (en) * | 2016-10-20 | 2017-02-22 | 中核（天津）机械有限公司 | Step hole depth measuring device |
-
2017
- 2017-10-18 CN CN201710970700.7A patent/CN107782220A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201964853U (en) * | 2010-12-02 | 2011-09-07 | 贵州航太精密制造有限公司 | Measuring device for sealing inner conical surface of tube union |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN203811094U (en) * | 2014-02-19 | 2014-09-03 | 东风朝阳朝柴动力有限公司 | An engine air cylinder cap seat ring conical surface depth detection apparatus |
| CN106441031A (en) * | 2016-10-20 | 2017-02-22 | 中核（天津）机械有限公司 | Step hole depth measuring device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551308A (en) * | 2018-12-04 | 2019-04-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of processing method of high-precision valve component |
| CN109551308B (en) * | 2018-12-04 | 2020-08-11 | 中国航发贵州红林航空动力控制科技有限公司 | Machining method of high-precision valve assembly |
| CN112123270A (en) * | 2020-09-21 | 2020-12-25 | 包头钢铁（集团）有限责任公司 | Rubber plug fine-adjustment alignment connecting device |
| CN112123270B (en) * | 2020-09-21 | 2024-06-11 | 包头钢铁（集团）有限责任公司 | Fine tuning and aligning connecting device for rubber plug |
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Application publication date: 20180309 |