CN210952680U - Contact type valve plate flatness detection device - Google Patents
Contact type valve plate flatness detection device Download PDFInfo
- Publication number
- CN210952680U CN210952680U CN201921970763.3U CN201921970763U CN210952680U CN 210952680 U CN210952680 U CN 210952680U CN 201921970763 U CN201921970763 U CN 201921970763U CN 210952680 U CN210952680 U CN 210952680U
- Authority
- CN
- China
- Prior art keywords
- digital display
- dial indicator
- module
- valve plate
- display dial
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a valve plate plane degree detection device of contact. The utility model discloses a with the gauge head with compress tightly the module and all carry and draw, the installation valve plate to waiting to examine the position, linear electric motor control compresses tightly the module and descends, is compressed tightly until the valve plate, then control digital display amesdial pull rod motor descends, makes it press the measured work piece, obtains measured data, simultaneously, the reverse side motor pushes up, obtains measured data, spreads into the computer with two sets of data again. If a measuring point needs to be added, the compressing module is pulled, and then the valve plate is manually rotated, so that the measured point of the digital display dial indicator set is different from the measured point before. The flatness error assessment is based on the intersection criteria in the minimum containment region. The utility model discloses can realize automatic reading, multiple spot simultaneous measurement, positive and negative simultaneous measurement, the price is lower and measuring speed is fast.
Description
Technical Field
The utility model relates to a detection device suitable for flatness measurement, in particular to valve plate flatness detection device suitable for contact measurement.
Background
The valve plate is an important part in a hydraulic system of the excavator, and the flatness of the valve plate can influence the power consumption and the service life of the hydraulic system, so that the normal work of the excavator is influenced. In order to prevent the flow distribution plate with poor flatness from flowing into the subsequent assembly production of the excavator to cause the excavator to be incapable of working normally, the flow distribution plate needs to be subjected to strict flatness detection when leaving a factory.
At present, related enterprises mainly finish the detection of the planeness of the port plate by manually operating a dial indicator, the bottom of an indicator rod of the dial indicator is firstly pressed against the port plate, an indicator value of the dial indicator is read, the position of the dial indicator is manually moved, the indicator value of the dial indicator is read again, a plurality of dial indicator values are obtained by measuring for many times, a detection result is transmitted to a computer, and the planeness is evaluated. With the increasingly complicated shapes of the valve plates and the rapid development of science and technology, in practical application, higher updating requirements are provided for flatness detection of the valve plates, and even flatness errors are required to reach 5 micrometers, so that production enterprises are required to detect each valve plate, however, the traditional detection method is low in efficiency, high in labor intensity of workers, prone to errors due to visual fatigue after long-term work, poor in reliability of detection results, and incapable of meeting the requirements of purchasers on product quality inspection and the requirements of transformation development of the enterprises.
Therefore, it is very important to develop a device capable of performing contact type flatness detection on the flatness error of the valve plate, and the device can quickly complete the flatness detection of the valve plate, store the detection result in a database, and improve the product quality detection capability and quality tracing management system of enterprises.
Disclosure of Invention
In view of the shortcomings of the background art, the invention aims to provide a detection device for detecting the flatness of a valve plate.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a detection device includes sensor and fixed mounting module, compresses tightly module, measuring staff and draws module, data processing and display module and laboratory bench module.
The flow distribution plate is arranged on the workbench, the electric linear displacement platforms are fixed on the desktop, the aluminum alloy beams are fixed on the corresponding electric linear displacement platform sliders, and the two electric linear displacement platforms are used for pressing the flow distribution plate or lifting the digital display dial indicator lifting plate to drive the digital display dial indicator set to move up and down.
The sensor and the fixed mounting module thereof are composed of an aluminum alloy vertical frame, a digital display dial indicator mounting disc, a mounting disc fixing plate and dial indicator fixing blocks, the sensor and the fixed mounting module thereof are vertically symmetrical and are respectively provided with 6 digital display dial indicators, and the mounting disc fixing plate and the dial indicator fixing blocks are used for fixing the digital display dial indicator and the digital display dial indicator mounting disc.
The pressing module comprises an electric linear displacement platform, an aluminum alloy cross beam and a triangular pressing piece, wherein the electric linear displacement platform is used for driving the triangular pressing piece to move downwards through the aluminum alloy cross beam to press the valve plate. The measuring rod lifting module is composed of an electric linear displacement platform, an aluminum alloy cross beam and a digital display dial indicator lifting disc, the electric linear displacement platform is symmetrical up and down, the electric linear displacement platform is used for driving the digital display dial indicator lifting disc through the aluminum alloy cross beam, the digital display dial indicator set can be integrally moved upwards so as to be placed in the valve plate, the measured value of the digital display dial indicator set can be displayed in real time and is guided into a computer, and multi-point simultaneous measurement is achieved; and the upper surface and the lower surface can be measured simultaneously, so that the measuring time is reduced.
And the data processing and displaying module is used for evaluating flatness errors after data measurement of the contact type valve plate flatness detecting device and displaying a final flatness error result on a computer. The experiment table module is used for placing the linear electric displacement platform, the aluminum alloy frame and the valve plate.
Compared with the background art, the beneficial effects of the utility model are that:
the utility model discloses in adopt the digital display amesdial to detect the plane degree error of valve plate, the price is lower and data can directly be derived.
The utility model discloses well 6 digital display amesdials of adoption are fixed simultaneous measurement on the amesdial mounting disc, can the multiple spot simultaneous measurement, and measuring speed is very fast.
The utility model discloses surface simultaneous measurement about well adoption can reach positive and negative simultaneous measurement's purpose.
The utility model discloses in, if need increase the measuring point, can carry and draw and compress tightly the module, the manual rotation valve plate encrypts the measurement station, reduces device detection reliability.
The precision can be improved through the calibration of the digital display dial indicator and the compensation of the installation height of the digital display dial indicator set.
Drawings
Fig. 1 is a three-dimensional structure diagram of the contact type valve plate flatness detecting device of the present invention.
Fig. 2 is a measuring diagram of the contact type valve plate flatness detecting device of the present invention.
Fig. 3 is a structure diagram of the compressing module of the present invention.
Fig. 4 is a schematic diagram of the connection between the sensor and the fixed installation module.
Fig. 5 is a structural diagram of a measuring rod lifting module of the present invention.
Fig. 6 is a structure view of the digital display dial indicator of the utility model.
Fig. 7 is a cloth view of the present invention.
Fig. 8 is a compensation schematic diagram of the digital display dial indicator of the utility model.
Fig. 9 is a flowchart of the flatness error compensation calculation of the present invention.
Fig. 10 is a tracing path diagram of the present invention.
Detailed Description
As shown in fig. 1 and 2, the valve plate 4 is arranged on the workbench 1, the electric linear displacement platforms 3, 9 and 10 are fixed on the desktop, the aluminum alloy beam is fixed on the corresponding electric linear displacement platform slide block, the electric linear displacement platform 3 slide block is used for pressing the valve plate, and the electric linear displacement platforms 9 and 10 slide block are used for pulling the digital display dial indicator pulling plate to drive the digital display dial indicator set to move up and down.
As shown in fig. 3, the pressing module motor 14 drives the coupler 12, so that the slider 11 drives the aluminum alloy beam 5 and the triangular pressing member 15 to move up and down, the upward movement of the motor facilitates the installation of the workpiece to be tested, and the downward movement of the motor facilitates the pressing of the workpiece to be tested.
As shown in fig. 4, the sensor and the fixed installation module thereof are composed of an aluminum alloy vertical frame 2, a digital display dial indicator 7, a digital display dial indicator installation disc 8, an installation disc fixing plate 17 and a dial indicator fixing block 18. The digital display dial indicator mounting disc 8 is fixed on the aluminum alloy vertical frame 2 through a mounting disc fixing plate 17, and the digital display dial indicator 7 is vertically fixed on the digital display dial indicator mounting disc 8 through a dial indicator fixing block 18.
As shown in fig. 5, the measuring rod lifting module is composed of an electric linear displacement platform 9, an aluminum alloy beam 5 and a digital display dial indicator lifting disc 6. The measuring bar lifting module motor 14 drives the coupler 12, so that the sliding block 11 drives the aluminum alloy cross beam 5 and the digital display dial indicator lifting disc 6 to move up and down, and the digital display dial indicator lifting disc 6 drives the digital display dial indicator set to move up and down, and the measuring bar lifting module motor is suitable for workpieces to be measured with different thicknesses.
As shown in fig. 6, the digital dial indicator is composed of a lifting bar 19, a gauge head 20, and a gauge head 21.
As shown in fig. 7, the utility model discloses measure a circumference, the every 60 installation of digital display amesdial is one, and both sides digital display amesdial group is upwards, move down simultaneously, and 12 points of simultaneous measurement, during data spread into two databases, because the measuring point is too few, need manual rotatory valve plate, encrypt the measurement station, measure 12 numerical values of point again, 12 measuring points are all obtained to the positive and negative promptly, can obtain two planar flatness errors of valve plate through the calculation.
As shown in FIG. 8, when calibrating the digital dial indicator, firstly, the standard gauge block 1 is placed on the air-float rotary table, and the initial displacement reading X of the digital dial indicator1Then, the standard gauge block 2 is ground on the standard gauge block 1, and the standard height of the standard gauge block 2 is h1At the moment, the digital display dial indicator reading is X2. Then the reading X is compared to the initial displacement1The amount of change in displacement is X2-X1Is recorded as △1. Then the standard gauge block 2 is taken down, the standard gauge block 3 is ground on the standard gauge block 1, and the standard height of the standard gauge block 3 is h2At the moment, the digital display dial indicator reading is X3. Then the reading X is compared to the initial displacement1The amount of change in displacement is X3-X1Is marked as△2Comparing the standard values of the standard measuring blocks 2 and 3 and the displacement reading variation of the dial indicator, and calibrating the dial indicator by a two-point calibration method (△)1,h1)，(△2,h2) And obtaining the following compensation relation, wherein each measuring head has the following compensation relation, and each digital display dial indicator needs to be calibrated.
Before measurement, firstly, the height of the installation position of the digital display dial indicator set is compensated, the digital display dial indicator set is ensured to be vertical, the digital display dial indicator set measures the distance from the same standard flat crystal to obtain the value of each digital display dial indicator, and then the compensation value t of the height of the installation position of the digital display dial indicator set can be obtainedi(i＝1,2，…，24)。
As shown in FIG. 9, in the measurement, first, the value m of each point is measured from the distribution diagram1，m2,…,m12,n1,n2,…,n12Then, the error t is displayed by each digital display dial indicatoriCompensating the measured values of the digital display dial indicators, fitting a plane by a minimum containment area method after compensation to obtain the difference △ m between each point and the fitting plane1，△m2,…,△m12,△n1,△n2,…,△n12Substituting the difference into the compensation relation of the error of the digital display dial indicator to obtain a corresponding difference f1,f2,…f12,f13,f14,…,f24Then finding out f on the front and back sides respectivelymax，fminFrom the formula f to fmax-fminAnd obtaining flatness error values of the two planes.
As shown in fig. 10, it is right that the utility model discloses digital display amesdial that uses in the device carries out periodic calibration to can make valve plate flatness testing result trace to the national length benchmark.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (4)
1. The utility model provides a valve plate plane degree detection device of contact which characterized in that: the device comprises a sensor, a fixed mounting module of the sensor, a pressing module, a measuring rod lifting module, a data processing and displaying module and a laboratory bench module; the pressing module comprises an electric linear displacement platform, an aluminum alloy cross beam and a triangular pressing piece; the flow distribution plate is arranged on the workbench, the electric linear displacement platform is fixed on the desktop, the aluminum alloy beam is fixed on the corresponding electric linear displacement platform slide block, and the electric linear displacement platform is used for pressing the flow distribution plate or lifting the digital display dial indicator lifting plate to drive the digital display dial indicator set to move up and down.
2. The contact type port plate flatness detecting apparatus according to claim 1, wherein: the sensor and the fixed mounting module thereof are composed of an aluminum alloy vertical frame, a digital display dial indicator mounting disc, a mounting disc fixing plate and dial indicator fixing blocks, the sensor and the fixed mounting module thereof are vertically symmetrical and are respectively provided with 6 digital display dial indicators, and the mounting disc fixing plate and the dial indicator fixing blocks are used for fixing the digital display dial indicator and the digital display dial indicator mounting disc.
3. The contact type port plate flatness detecting apparatus according to claim 1, wherein: the electric linear displacement platform is used for driving the triangular pressing piece to move downwards through the aluminum alloy cross beam and pressing the valve plate; the measuring rod lifting module is composed of an electric linear displacement platform, an aluminum alloy cross beam and a digital display dial indicator lifting disc, the electric linear displacement platform is symmetrical up and down, the electric linear displacement platform is used for driving the digital display dial indicator lifting disc through the aluminum alloy cross beam to enable a digital display dial indicator set to move upwards integrally so as to be placed in the valve plate, and measured values of the digital display dial indicator set can be displayed in real time and are guided into a computer to realize simultaneous multi-point measurement; and the upper surface and the lower surface can be measured simultaneously, so that the measuring time is reduced.
4. The contact type port plate flatness detecting apparatus according to claim 1, wherein: the data processing and displaying module is used for data compensation and flatness error evaluation after data measurement of the device, and a final flatness error result is displayed on a computer; the experiment table module is used for placing the linear electric displacement platform, the aluminum alloy frame and the valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970763.3U CN210952680U (en) | 2019-11-14 | 2019-11-14 | Contact type valve plate flatness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970763.3U CN210952680U (en) | 2019-11-14 | 2019-11-14 | Contact type valve plate flatness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210952680U true CN210952680U (en) | 2020-07-07 |
Family
ID=71383676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921970763.3U Expired - Fee Related CN210952680U (en) | 2019-11-14 | 2019-11-14 | Contact type valve plate flatness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210952680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617756A (en) * | 2019-11-14 | 2019-12-27 | 中国计量大学 | Contact type valve plate flatness detection device and method |
-
2019
- 2019-11-14 CN CN201921970763.3U patent/CN210952680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617756A (en) * | 2019-11-14 | 2019-12-27 | 中国计量大学 | Contact type valve plate flatness detection device and method |
| CN110617756B (en) * | 2019-11-14 | 2024-05-07 | 中国计量大学 | Contact type valve plate flatness detection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103148822B (en) | Multiple spot measuring thickness device and using method thereof | |
| CN203940816U (en) | A kind of calibrating installation | |
| CN105674885A (en) | Sheet material detection method | |
| CN210773947U (en) | Non-contact valve plate flatness detection device | |
| CN210952680U (en) | Contact type valve plate flatness detection device | |
| CN110617756B (en) | Contact type valve plate flatness detection device and method | |
| CN212340145U (en) | Automobile anti-collision beam surface profile tolerance detection device | |
| CN112781523A (en) | Portable surface defect detection device and method based on laser displacement ranging | |
| CN103438851A (en) | Slide block groove center distance detector and measuring method thereof | |
| CN206177237U (en) | Pneumatic flatness detection machine of contact | |
| CN109974549B (en) | Intelligent calibrating instrument for height caliper | |
| CN105136102B (en) | The chamber of metal material deflection and its detection method | |
| CN210400275U (en) | Engineering detection measuring tool for detecting bonding area ratio of heat insulation material | |
| CN203587485U (en) | Welding drawing force detection tool | |
| CN203405192U (en) | Slide block groove center distance detector | |
| CN206113903U (en) | Sapphire wafer thickness detection mechanism | |
| CN205940375U (en) | Ball core measurement tester | |
| CN210154454U (en) | Automatic calibrating instrument for height caliper | |
| CN110631447A (en) | System and method for detecting space size of special-shaped part | |
| CN219347588U (en) | Digital display type quick height inspection tool for swinging rod | |
| CN213932268U (en) | Backlight module alignment inspection device | |
| CN218947483U (en) | Clamp for flatness measurement | |
| CN111060045A (en) | Detection device and detection method for size of groove type part | |
| CN219532947U (en) | Multi-point pneumatic stamping part checking fixture | |
| CN210154455U (en) | Intelligent height caliper calibrating instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20211114 |