CN101634268B - Device and method for detecting and controlling protrusion height of oil sprayer - Google Patents
Device and method for detecting and controlling protrusion height of oil sprayer Download PDFInfo
- Publication number
- CN101634268B CN101634268B CN2008101299388A CN200810129938A CN101634268B CN 101634268 B CN101634268 B CN 101634268B CN 2008101299388 A CN2008101299388 A CN 2008101299388A CN 200810129938 A CN200810129938 A CN 200810129938A CN 101634268 B CN101634268 B CN 101634268B
- Authority
- CN
- China
- Prior art keywords
- oil sprayer
- protrusion height
- press machine
- oil
- sprayer
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a device for detecting and controlling a protrusion height of an oil sprayer, which comprises a pressure machine arranged on a fame, a displacement sensor, a controller and a display, wherein the pressure machine is positioned above the oil sprayer, is coaxial with the oil sprayer, and is used for applying pressure to the oil sprayer; the oil sprayer is arranged on a cylinder cover which is arranged on the frame; and the displacement sensor, the controller and the display are electrically connected in sequence and used for measuring and displaying the protrusion height of the oil sprayer. The invention also discloses a method for detecting and controlling the protrusion height of the oil sprayer. The method comprises the following steps of: pre-compressing the oil sprayer with the device; detecting and adjusting the protrusion height of the oil sprayer; and making the protrusion height of the oil sprayer required to be finally controlled during assembly and fastening equal to the pre-adjusted protrusion height of the oil sprayer. The device and the method for detecting and controlling the protrusion height of the oil sprayer achieve the aim of accurately and effectively detecting and controlling the protrusion height of the oil sprayer.
Description
Technical field
The present invention relates to a kind of protrusion height detection control apparatus and method, particularly a kind of engine fuel injector protrusion height detection control apparatus and method.
Background technique
In the motor industry, after protrusion height of oil sprayer is meant oil sprayer is anchored on cylinder cap, protrude the oil nozzle of cylinder cap bottom surface and the perpendicular distance of cylinder cap bottom surface.Development along with society, engine emission requires more and more stricter, and the discharging of protrusion height of oil sprayer and motor is closely related, thus protrusion height of oil sprayer be must strict control in the motor manufacture process an important quality parameter, its tolerance range require generally be ± 0.1mm.Because the part that protrusion height of oil sprayer relates to is more, dimensional chain is longer, must adjust protrusion height of oil sprayer by the pad between increase and decrease oil sprayer and the cylinder cap.Because multiple engine product series is used with a kind of cylinder cap or oil sprayer, causes the stack thickness of multi-disc pad may reach 4～5mm; This pad also will play the effect of sealing oil sprayer and cylinder cap simultaneously, so the oil sprayer pad generally selects softer metals for use, as fine copper T3; Simultaneously, oil sprayer is to be anchored on the cylinder cap by threaded piece, and owing to the dispersion of tightening coefficient, impacting force is often difficult to be controlled when using moment method to tighten.Studies show that, for the thick copper backing of 4mm, oil sprayer clamping bolt moment when 0～30N.m, the every increase of moment 5N.m, protrusion height of oil sprayer can increase more than the 0.1mm; Added up the protrusion height of oil sprayer after certain h type engine h normally assembles again, standard deviation is up to 0.12mm, and the tolerance range of protrusion height of oil sprayer has only ± 0.1mm, so CP (process capability index) value has only 0.27, normal condition far below 1, the process capability wretched insufficiency.Based on above reason and analysis, because the influence of various procedures variation, the amount of deformation of oil sprayer copper backing is difficult to accurate control, makes the accurate control of protrusion height of oil sprayer become a difficult problem in the motor manufacture process.A solution is, before cylinder cap is anchored on cylinder block, the assembling of simulation oil sprayer, carry out the manual process of " tightening, take apart fastening piece-measurement protrusion height of oil sprayer-adjustment pad " repeatedly, adjust to acceptability limit up to protrusion height of oil sprayer, yet this method wastes time and energy, and inefficiency, accuracy are not high yet.
Summary of the invention
The purpose of this invention is to provide a kind of protrusion height of oil sprayer detection control apparatus and method, to solve the problem that the protrusion height of oil sprayer detection efficiency is low in the prior art, accuracy is not high.
In order to realize above purpose, the invention discloses a kind of protrusion height of oil sprayer detection control apparatus, comprise the press machine, displacement transducer, controller and the display device that are installed on the frame; Press machine is positioned at the oil sprayer top, and coaxial with oil sprayer, is used for exerting pressure to oil sprayer; Oil sprayer is installed on the cylinder cap, and cylinder cap is arranged on the frame; Displacement transducer, controller and display device are electrically connected in proper order, are used for measuring and showing protrusion height of oil sprayer.
In the technique scheme, press machine can be hydraulic press or gas-liquid pressure-boosting machine or electron pressure machine; Displacement transducer is positioned at described oil sprayer below, and coaxial with described oil sprayer; Controller may command press machine and displacement transducer single movement or interlock; The pressure of press machine can pass through pressure regulator valve or controller adjustment.
The invention also discloses a kind of protrusion height of oil sprayer and detect controlling method, may further comprise the steps: oil sprayer prepares initial pad and is installed on the cylinder cap, the cylinder cap that oil sprayer is installed is arranged at the corresponding position of frame, with press machine and displacement transducer consistency from top to bottom; Press machine compresses oil sprayer, displacement sensor protrusion height of oil sprayer original value, and the protrusion height of oil sprayer raw calculation protrusion height of oil sprayer actual value that controller is measured according to displacement transducer, and pass to the display device demonstration; If the protrusion height of oil sprayer actual value is defective, then manual increase and decrease oil sprayer pad, again compress oil sprayer, measure the protrusion height of oil sprayer original value, calculate the protrusion height of oil sprayer actual value, equal the protrusion height of oil sprayer of final control until the protrusion height of oil sprayer actual value.
In the technique scheme, it is big by 0%～10% that the pressure ratio oil sprayer that press machine compresses oil sprayer assembles the maximum impacting force that is subjected to when fastening; The protrusion height of oil sprayer actual value is protrusion height of oil sprayer original value and compensation rate sum.
Protrusion height of oil sprayer disclosed by the invention detects controlling method and device, has realized detecting accurately and efficiently the purpose of control protrusion height of oil sprayer.
Description of drawings
Fig. 1 is the schematic representation of protrusion height of oil sprayer detection control apparatus of the present invention;
Fig. 2 is the principle of measurement figure of protrusion height of oil sprayer detection control apparatus of the present invention.Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-frame, 2-controller, 3-display device, 4-press machine, the 5-oil sprayer, 6-cylinder cap, 7-displacement transducer, 8-protrusion height of oil sprayer actual value H, 9-protrusion height of oil sprayer original value Y, 10-trip sensor X, 11-initial position sensor measuring head is to the distance L of cylinder cap bottom surface.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in Figure 1, the embodiment of the invention 1 provides a kind of protrusion height of oil sprayer detection control apparatus, and the embodiment of the invention 1 is an example with typical six cylinder engine (oil sprayer of every cylinder).
Protrusion height of oil sprayer detection control apparatus of the present invention comprises frame 1, controller 2, display device 3, six press machinees 4, six displacement transducers 7.Frame 1 connects into an integral body with controller 2, display device 3, press machine 4, displacement transducer 7, cylinder cap 6 has been installed six oil sprayers 5 and has been arranged on the frame 1, press machine 4 is positioned at oil sprayer 5 tops, and it is coaxial with oil sprayer, oil sprayer 5 is exerted pressure, press machine 4 is various informative, can be hydraulic press, the mechanical, electrical sub-press machine of gas-liquid pressure-boosting etc., and its pressure size can be passed through controller 2 or pressure regulator valve adjustment.When protrusion height of oil sprayer was detected, displacement transducer 7 was positioned at oil sprayer 5 belows, moved axially along oil sprayer 5, and the stroke of each detecting position displacement sensor 7 is fixed, and represents with X (reference character is 10 among Fig. 2); The protrusion height of oil sprayer original value Y that controller 2 sends displacement transducer 7 (reference character is 9) is scaled protrusion height of oil sprayer actual value H (reference character is 8), and by display device 3 output testing results.During each the detection, under the control of controller 2, but six press machinees and six sensor single movements or several interlocks.
As shown in Figure 1, 2, the embodiment of the invention 2 provides a kind of protrusion height of oil sprayer to detect controlling method, this controlling method, be to utilize protrusion height of oil sprayer detection control apparatus of the present invention to compress oil sprayer 5 in advance, make the protrusion height of oil sprayer that protrusion height of oil sprayer in the detection equals to assemble needs final control when fastening.Concrete grammar is as follows: oil sprayer 5 prepares initial pad and is installed on the cylinder cap, cylinder cap is arranged at the corresponding position of frame 1, with press machine 4 and displacement transducer 7 consistencies from top to bottom; Press machine 4 compresses oil sprayer 5 downwards on cylinder cap 6, this moment, displacement transducer 7 was to cylinder cap 6 shift motion X, automatically measure protrusion height of oil sprayer original value Y, and Y is sent to controller 2, controller 2 demonstrates protrusion height of oil sprayer actual value H by the back of converting on display device 3; If H is not in acceptable ranges, operator are according to the manual increase and decrease of display device 3 result displayed pad, again compress oil sprayer then, measure the protrusion height of oil sprayer original value, calculate the protrusion height of oil sprayer actual value, equal the protrusion height of oil sprayer of final control until the protrusion height of oil sprayer actual value.
Detect in the controlling method at protrusion height of oil sprayer of the present invention, it is big by 0%～10% that the pressure of press machine 4 is set to assemble the maximum impacting force that is subjected to when fastening than oil sprayer, because " flow harden " in metal plastic deformation theory effect, assembling needs final control protrusion height of oil sprayer to equal to compress, adjust when detecting the protrusion height of oil sprayer of gained when fastening.
By shown in Figure 2, H=Y+ (L-X), wherein L is defined as compensation rate to (L-X) for the distance (reference character is 11 among Fig. 2) of initial position sensor measuring head to the cylinder cap bottom surface, this compensation rate was fixed value after displacement transducer was installed, and can obtain exact value by actual measurement.So, controller is the logic that protrusion height of oil sprayer original value Y is converted into protrusion height of oil sprayer actual value H: the H=Y+ compensation rate.
Protrusion height of oil sprayer of the present invention detects controlling method and device, can realize detecting accurately and efficiently the control protrusion height of oil sprayer.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (8)
1. a protrusion height of oil sprayer detection control apparatus is characterized in that, comprises the press machine, displacement transducer, controller and the display device that are installed on the frame; Described press machine is positioned at the oil sprayer top, and coaxial with oil sprayer, is used for exerting pressure to oil sprayer; Described oil sprayer is installed on the cylinder cap, and described cylinder cap is arranged on the frame; Described displacement transducer, controller and display device are electrically connected in proper order, are used for measuring and showing protrusion height of oil sprayer.
2. protrusion height of oil sprayer detection control apparatus according to claim 1 is characterized in that, described press machine is hydraulic press or gas-liquid pressure-boosting machine or electron pressure machine.
3. protrusion height of oil sprayer detection control apparatus according to claim 1 and 2 is characterized in that, described displacement transducer is positioned at described oil sprayer below, and coaxial with described oil sprayer.
4. protrusion height of oil sprayer detection control apparatus according to claim 1 and 2 is characterized in that, described controller is controlled described press machine and displacement transducer single movement or interlock.
5. protrusion height of oil sprayer detection control apparatus according to claim 1 and 2 is characterized in that, the pressure of described press machine is by pressure regulator valve or described controller adjustment.
6. a protrusion height of oil sprayer detects controlling method, it is characterized in that, uses the described device of arbitrary claim in the claim 1 to 5, may further comprise the steps:
Oil sprayer prepares initial pad and is installed on the cylinder cap, the cylinder cap that oil sprayer is installed is arranged at the corresponding position of frame, with press machine and displacement transducer consistency from top to bottom;
Press machine compresses described oil sprayer, displacement sensor protrusion height of oil sprayer original value, and the protrusion height of oil sprayer raw calculation protrusion height of oil sprayer actual value that controller is measured according to described displacement transducer, and pass to the display device demonstration;
If described protrusion height of oil sprayer actual value is defective, then manual increase and decrease oil sprayer pad, again compress oil sprayer, measure the protrusion height of oil sprayer original value, calculate the protrusion height of oil sprayer actual value, need to equal the protrusion height of oil sprayer of final control until described protrusion height of oil sprayer actual value.
7. protrusion height of oil sprayer according to claim 6 detects controlling method, it is characterized in that, it is big by 0%～10% that the pressure ratio oil sprayer that described press machine compresses oil sprayer assembles the maximum impacting force that is subjected to when fastening.
8. protrusion height of oil sprayer according to claim 6 detects controlling method, it is characterized in that described protrusion height of oil sprayer actual value is described protrusion height of oil sprayer original value and compensation rate sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101299388A CN101634268B (en) | 2008-07-24 | 2008-07-24 | Device and method for detecting and controlling protrusion height of oil sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101299388A CN101634268B (en) | 2008-07-24 | 2008-07-24 | Device and method for detecting and controlling protrusion height of oil sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101634268A CN101634268A (en) | 2010-01-27 |
| CN101634268B true CN101634268B (en) | 2011-02-02 |
Family
ID=41593569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101299388A Active CN101634268B (en) | 2008-07-24 | 2008-07-24 | Device and method for detecting and controlling protrusion height of oil sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101634268B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563102A (en) * | 2015-12-30 | 2016-05-11 | 广西玉柴机器股份有限公司 | Control method for protrusion height of diesel engine piston |
| CN105674847A (en) * | 2016-04-18 | 2016-06-15 | 上海星融汽车科技有限公司 | Novel measuring tool detection probe |
| CN108007408B (en) * | 2017-12-28 | 2023-10-27 | 广西玉柴机器股份有限公司 | Automatic injector height measuring device of adjustment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020054384A (en) * | 2000-12-28 | 2002-07-08 | 이계안 | Variable injector for diesel engine |
| KR20030016963A (en) * | 2001-08-23 | 2003-03-03 | 현대자동차주식회사 | Adjustment apparatus for NTP of injector |
-
2008
- 2008-07-24 CN CN2008101299388A patent/CN101634268B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020054384A (en) * | 2000-12-28 | 2002-07-08 | 이계안 | Variable injector for diesel engine |
| KR20030016963A (en) * | 2001-08-23 | 2003-03-03 | 현대자동차주식회사 | Adjustment apparatus for NTP of injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101634268A (en) | 2010-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202033162U (en) | Air tightness testing machine | |
| CN101905272B (en) | Self-locking nut crimping processing method | |
| CN103148982B (en) | Calibration device of pull-press integrated sensor | |
| CN101941041B (en) | Universal checking machine tool of computer-controlled hydraulic servo chain and control method thereof | |
| CN101634268B (en) | Device and method for detecting and controlling protrusion height of oil sprayer | |
| CN103528900B (en) | Ultrahigh-strain-rate precise-stretching in-situ testing platform | |
| CN104149384A (en) | Four-column hydraulic press | |
| CN100357722C (en) | Electromagnetic and micromechanic impress tester and test thereof | |
| CN204115658U (en) | Servo-hydraulic pressure loading device is used in resistance strain plate solidification | |
| CN202210020U (en) | Automobile engine control unit box body air tightness detection tool | |
| CN202886177U (en) | Comprehensive testing machine for electro-hydraulic servo steel strands | |
| CN102175132B (en) | Full-automatic thickness tester for geo-technical synthetic material | |
| CN1803448A (en) | Constant backpressure and proportion controlled sinter apparatus HAGC System | |
| JP2001113399A (en) | Method and device for diagnosing press machine | |
| CN202119419U (en) | Device for detecting thickness of gas valve pad | |
| CN201735726U (en) | Computer controlled hydraulic servo universal chain calibrating machine tool | |
| CN203721826U (en) | Fuel cell pack capable of monitoring assembly force on line | |
| CN105628268B (en) | POS machine safety contact pressure testing system and test method | |
| CN2506387Y (en) | Interference fit pressure sensing measurer for machinery part | |
| CN209979056U (en) | Portable electric subway platform scale rapid calibrating device | |
| CN102478440A (en) | Novel mechanical force measuring machine and calibration method | |
| CN202393367U (en) | Bush outside-diameter measuring device | |
| CN219675748U (en) | Self-bearing calibration device | |
| CN208399126U (en) | A kind of metal component residual tension simulating test device | |
| CN111390003B (en) | Shaping device and method suitable for bellows |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |