CN113090612B - Reverse extraction method for connection relation of hydraulic valve plate oil circuit of automatic transmission - Google Patents

Reverse extraction method for connection relation of hydraulic valve plate oil circuit of automatic transmission Download PDF

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CN113090612B
CN113090612B CN202110645076.XA CN202110645076A CN113090612B CN 113090612 B CN113090612 B CN 113090612B CN 202110645076 A CN202110645076 A CN 202110645076A CN 113090612 B CN113090612 B CN 113090612B
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valve plate
valve plates
plate
adjacent
oil circuit
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CN113090612A (en
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刘艳芳
赵俊玮
徐向阳
刘倩倩
徐荥
王书翰
王涛
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Beihang University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/007—Simulation or modelling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H2061/0034—Accumulators for fluid pressure supply; Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H2061/0068—Method or means for testing of transmission controls or parts thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/08—Indexing scheme for image data processing or generation, in general involving all processing steps from image acquisition to 3D model generation

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Graphics (AREA)
  • Geometry (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses a reverse extraction method for the connection relation of oil passages of hydraulic valve plates of an automatic transmission, which can quickly meet the determination of reverse connection of oil passages of hydraulic valve plates of different automatic transmissions and can ensure the connection accuracy of the oil passages according to the color consistency of layers; the three-dimensional digital physical model is used as data input, so that the consistency of the contour shape and the structure size extracted by different valve plates can be ensured, and the reliability of oil circuit connection analysis sources can be ensured compared with manual mapping. According to the invention, complicated manual operation steps or steps which can be implemented by a certain link through a computer are integrated in the same test system, and all operation links for reversely analyzing the oil circuit connection of the hydraulic valve plate of the automatic transmission are integrated, so that the time for reversely analyzing the oil circuit connection of the hydraulic valve plate can be shortened, the working efficiency of reversely analyzing the oil circuit connection of the hydraulic valve plate can be improved, and the accuracy of the connection relation of the reverse oil circuit can be ensured.

Description

Reverse extraction method for connection relation of hydraulic valve plate oil circuit of automatic transmission
Technical Field
The invention relates to the technical field of hydraulic systems of automatic transmissions, in particular to a reverse extraction method for an oil circuit connection relation of a hydraulic valve plate of an automatic transmission.
Background
The automobile transmission system is a complex system project, not only highly integrates different physical systems such as a mechanical system, an electric control system and a hydraulic system, but also cooperatively couples different transmission states such as power flow, energy flow and information flow. The hydraulic system is used as a core key for mode switching of the automatic transmission, and directly influences real-time responsiveness of gear switching and reliability of gear shifting quality. Therefore, the analysis of the performance influence of the hydraulic valve plate of the automatic transmission is of great significance.
Split type hydraulic valve plate is by last valve plate, the baffle comprises with lower valve plate, split type hydraulic valve plate is by last valve plate, well valve plate, down the valve plate and be located respectively in between the valve plate, the baffle between the valve plate is constituteed down in, the valve plate is inside by the solenoid valve of different quantity, the slide valve, subassembly such as check valve and energy accumulator are constituteed, different solenoid valves, the slide valve is equipped with different sliding sleeve structures on hydraulic valve plate, the oil circuit port that differs in quantity is seted up to different sliding sleeve structures, interconnect between the port of difference, constitute complicated oil circuit interconnecting link. It is important to note that the oil passages are not only formed in the same valve plate surface, but that complex oil passages can flow back and forth between the upper and lower valve plates through the orifice of the spacer. At present, the connection analysis of the oil circuit of the machined hydraulic valve plate assembly does not have a rapid, efficient, reliable and accurate reverse analysis test method.
Disclosure of Invention
In view of the above, the invention provides a reverse extraction method for an oil circuit connection relation of a hydraulic valve plate of an automatic transmission, and provides a method for rapidly extracting the oil circuit connection relation among different sliding sleeve ports for the complex oil circuit connection relation of the hydraulic valve plate, so as to perform accurate simulation test on the performance of the hydraulic valve plate and perform experimental test on the premise of understanding the structural principle.
The invention provides a reverse extraction method for an oil circuit connection relation of a hydraulic valve plate of an automatic transmission, which comprises the following steps:
s1: disassembling the hydraulic valve plate of the automatic transmission to obtain two or three valve plates and a middle partition plate positioned between two adjacent valve plates, respectively obtaining three-dimensional physical model data of each valve plate through a three-dimensional scanner, and obtaining the three-dimensional physical model data of the middle partition plate by using a three-dimensional coordinate measuring machine;
s2: respectively executing the steps S3-S7 for every two adjacent valve plates;
s3: taking the taking-out direction of the mounting position of the hydraulic valve plate as the positive direction, sequentially rotating the same component on the upper valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering, and sequentially rotating the same component on the lower valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering; the naming rule of the space positioning number of the upper valve plate assembly in the two adjacent valve plates and the space positioning number of the lower valve plate assembly in the two adjacent valve plates is the name-number of the upper valve plate or the lower valve plate-assembly in the two adjacent valve plates;
s4: constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical models of the two adjacent valve plates and the middle partition plate to obtain a plane mapping chart of the outline shape structure of the two adjacent valve plates and the middle partition plate; preprocessing a plane mapping chart of the outline shape structures of the two adjacent valve plates and the middle partition plate, and converting the plane mapping chart of the outline shape structure into a transparent outline layer;
s5: carrying out size coincidence processing on the contour shape structure of the lower surface of the upper valve plate in the two adjacent valve plates, the contour shape structure of the upper surface of the lower valve plate in the two adjacent valve plates and the contour shape structure of any surface of the middle partition plate, and carrying out coincidence check on the plane mapping diagrams of the contour shape structures of the two adjacent valve plates and the middle partition plate by taking the positioning pins of the upper surfaces of the lower valve plates in the two adjacent valve plates as reference circle centers and referring to a three-dimensional absolute position coordinate system to ensure that the absolute positions of the outer contours of the two adjacent valve plates and the middle partition plate are consistent;
s6: analyzing the oil circuit function according to the oil circuit connection relation, and designing the one-to-one correspondence relation between the oil circuit function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil path on the lower surface of the upper valve plate in the two adjacent valve plates according to the color index table; according to the color filled on the lower surface of the upper valve plate in the two adjacent valve plates, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, so that the colors of the sliding sleeve ports on the lower surface of the upper valve plate in the two adjacent valve plates are consistent with the colors of the throttling holes corresponding to the middle partition plate; according to the color of the throttling hole filling of the middle partition plate, color filling is carried out on the oil circuit on the upper surface of the lower valve plate in the two adjacent valve plates, and the color of the sliding sleeve port on the upper surface of the lower valve plate in the two adjacent valve plates is ensured to be consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents an area where an oil path flows;
s7: according to the color of the filling of the two adjacent valve plates and the middle partition plate, the space positioning serial number of the oil circuit interface on the upper surface of the upper valve plate in the two adjacent valve plates with the same color, the space positioning serial number of the oil circuit port on the lower surface of the sliding sleeve on the lower surface of the upper valve plate in the two adjacent valve plates, the space positioning serial number of the throttling hole of the middle partition plate, the space positioning serial number of the oil circuit port on the upper surface of the sliding sleeve on the lower surface of the lower valve plate in the two adjacent valve plates and the space positioning serial number of the oil drainage hole on the lower surface of the lower valve plate in the two adjacent valve plates are sequentially connected to obtain a simple assembly schematic diagram, and the simple assembly schematic diagram and the oil circuit connection relationship are stored.
In a possible implementation manner, in the above method for reversely extracting the oil passage connection relationship between the hydraulic valve plates of the automatic transmission provided by the present invention, in step S4, a three-dimensional absolute position coordinate system and a reference plane are constructed, the reference plane is shifted in the three-dimensional absolute position coordinate system along a direction perpendicular to the reference plane, and a three-dimensional physical model of two adjacent valve plates and a middle partition plate is subjected to contour shape structure extraction to obtain a plane map of contour shape structures of the two adjacent valve plates and the middle partition plate, which specifically includes:
for the inner surfaces of the valve plates to be flat surfaces, selecting a plane parallel to the lower surfaces of the upper valve plates in the two adjacent valve plates as a reference plane, performing deviation in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, and performing contour shape structure extraction on a three-dimensional physical model of the upper valve plate in the two adjacent valve plates to obtain a plane mapping chart of the contour shape structure of the upper valve plate in the two adjacent valve plates; selecting a plane parallel to the upper surface of the lower valve plate in the two adjacent valve plates as a reference plane, shifting the plane in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate in the two adjacent valve plates to obtain a plane mapping chart of the outline shape structure of the lower valve plate in the two adjacent valve plates;
for the outer surfaces of the valve plates which are uneven, selecting the lowest position of the upper surfaces of the upper valve plates in the two adjacent valve plates as a reference plane, sequentially offsetting the highest position of the upper surfaces of the upper valve plates in the two adjacent valve plates along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, extracting the outline shape structure of the three-dimensional physical model of the upper valve plate in the two adjacent valve plates, and obtaining a plane mapping chart of the outline shape structure of the upper valve plate in the two adjacent valve plates; selecting the lowest position of the lower surface of the lower valve plate in the two adjacent valve plates as a reference plane, sequentially offsetting the lowest position of the lower surface of the lower valve plate in the two adjacent valve plates along a direction perpendicular to the reference plane in a three-dimensional absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate in the two adjacent valve plates to obtain a plane mapping chart of the outline shape structure of the lower valve plate in the two adjacent valve plates;
selecting a plane parallel to any surface of the intermediate partition plate as a reference plane, shifting in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, extracting the contour shape structure of the three-dimensional physical model of the intermediate partition plate, and obtaining a plane mapping chart of the contour shape structure of the intermediate partition plate.
In a possible implementation manner, in the method for reversely extracting the oil circuit connection relationship of the hydraulic valve plate of the automatic transmission provided by the invention, the step S6 specifically includes the following steps:
s61: determining the colors of different oil circuit ports on the upper surface of the upper valve plate in the two adjacent valve plates according to the relationship between the upper surface of the upper valve plate in the two adjacent valve plates and an oil pump interface, a condenser interface and a shell interface, defining different oil circuit ports according to a pre-designed color index table, painting the oil circuit ports on the upper surface of the upper valve plate in the two adjacent valve plates according to the definitions of the different oil circuit ports, and simultaneously filling corresponding oil circuits on the lower surface of the upper valve plate in the two adjacent valve plates according to a transparent profile layer until the oil circuits flow to sliding sleeve ports corresponding to sliding valves or electromagnetic valves on the lower surface of the upper valve plate in the two adjacent valve plates;
s62: according to the color filled on the lower surface of the upper valve plate in the two adjacent valve plates, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, so that the colors of the sliding sleeve ports on the lower surface of the upper valve plate in the two adjacent valve plates are consistent with the colors of the throttling holes corresponding to the middle partition plate; the naming rule of the space positioning serial number of the throttling hole is that the serial number of sliding sleeve ports of upper valve plates in two adjacent valve plates is-OR-the serial number of sliding sleeve ports of lower valve plates in two adjacent valve plates, the serial numbers and the OR serial numbers of sliding sleeve ports of upper valve plates in two adjacent valve plates are predefined, and a plurality of throttling holes exist between the oil circuit ports of the upper valve plates in two adjacent valve plates and the oil circuit ports of the lower valve plates in two adjacent valve plates and are numbered according to OR1, OR2 and OR3 …;
s63: the plane mapping diagram of the outline shape structure of the upper surface of the lower valve plate in the two adjacent valve plates is overlapped with the plane mapping diagram of the outline shape structure of the colored intermediate partition plate, the oil circuit of the upper surface of the lower valve plate in the two adjacent valve plates is colored and connected according to the color of the oil circuit of the intermediate partition plate until the oil circuit flows to the sliding sleeve ports corresponding to the sliding valves or the electromagnetic valves on the upper surfaces of the lower valve plates in the two adjacent valve plates, the sliding sleeve port numbers of the lower valve plates in the two adjacent valve plates are defined, the space positioning numbers of the throttling holes are supplemented, and the corresponding oil drainage holes on the lower surfaces of the lower valve plates in the two adjacent valve plates are colored according to the plane mapping diagram of the outline shape structure of the sliding sleeve assembly.
In a possible implementation manner, in the method for reversely extracting the oil passage connection relationship between the hydraulic valve plate of the automatic transmission provided by the invention, after the step S7 is executed, the method further includes the following steps:
s8: and checking the three-dimensional physical models of the two adjacent valve plates and the middle partition plate, adjusting the spacing distance between the three-dimensional physical models of the two adjacent valve plates and the middle partition plate on the premise of ensuring the consistency of contour overlap, and adaptively adjusting the view direction of the three-dimensional physical models to obtain the optimized hydraulic valve plate oil circuit connection relation.
In a possible implementation manner, in the method for reversely extracting the oil passage connection relationship between the hydraulic valve plate of the automatic transmission provided by the invention, after the step S8 is executed, the method further includes the following steps:
s9: highlighting the peripheries of the sliding sleeve oil way ports corresponding to the upper valve plate and the lower valve plate in the two adjacent valve plates, connecting the oil way ports of the upper valve plate and the lower valve plate in the two adjacent valve plates through a middle partition plate throttling hole in a solid line manner, and setting and adjusting the color and the line width of the connecting solid line.
In a possible implementation manner, in the method for reversely extracting the oil passage connection relationship between the hydraulic valve plate of the automatic transmission provided by the invention, after the step S9 is executed, the method further includes the following steps:
s10: and storing the three-dimensional physical model data and the oil way layer color filling schematic diagram, and outputting an oil way connection relation analysis report.
According to the reverse extraction method for the connection relation of the oil circuit of the hydraulic valve plate of the automatic transmission, provided by the invention, a physical simulation model is quickly built for reverse simulation analysis, and complete and accurate physical model data are provided for a tool actual measurement test on the basis of determining the structure principle of the hydraulic valve plate. The method can quickly meet the determination of reverse connection of oil passages of hydraulic valve plates of different automatic transmissions, and can ensure the connection accuracy of the oil passages according to the color consistency of the image layer. The invention adopts the three-dimensional digital physical model as data input, can ensure that the contour shapes extracted by different valve plates have consistent structure sizes, and can ensure the reliability of oil circuit connection analysis sources compared with manual mapping. According to the invention, complicated manual operation steps or steps which can be implemented by a certain link through a computer are integrated in the same test system, and all operation links for reversely analyzing the oil circuit connection of the hydraulic valve plate of the automatic transmission are integrated, so that the time for reversely analyzing the oil circuit connection of the hydraulic valve plate can be shortened, the working efficiency of reversely analyzing the oil circuit connection of the hydraulic valve plate can be improved, and the accuracy of the connection relation of the reverse oil circuit can be ensured.
Drawings
Fig. 1 is a schematic flow chart of a method for reversely extracting a connection relation of an oil circuit of a hydraulic valve plate of an automatic transmission according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only illustrative and are not intended to limit the present invention.
The invention provides a reverse extraction method for an oil circuit connection relation of a hydraulic valve plate of an automatic transmission, which comprises the following steps:
s1: disassembling the hydraulic valve plate of the automatic transmission to obtain two or three valve plates and a middle partition plate positioned between two adjacent valve plates, respectively obtaining three-dimensional physical model data of each valve plate through a three-dimensional scanner, and obtaining the three-dimensional physical model data of the middle partition plate by using a three-dimensional coordinate measuring machine;
the reverse extraction method for the oil circuit connection relationship of the hydraulic valve plate of the automatic transmission, provided by the invention, can be suitable for a split type hydraulic valve plate, namely the hydraulic valve plate comprises an upper valve plate, a middle partition plate and a lower valve plate after being separated; or, the valve plate can also be suitable for a multi-body type hydraulic valve plate, namely, the hydraulic valve plate comprises an upper valve plate, a middle partition plate, a middle valve plate, a middle partition plate and a lower valve plate after being separated; are not limited herein;
s2: respectively executing the steps S3-S7 for every two adjacent valve plates;
for the split type hydraulic valve plate, the steps S3-S7 are executed for the upper valve plate and the lower valve plate; for the multi-body hydraulic valve plate, the steps S3-S7 are firstly executed on the upper valve plate and the middle valve plate, and then the steps S3-S7 are executed on the middle valve plate and the lower valve plate;
s3: taking the taking-out direction of the mounting position of the hydraulic valve plate as the positive direction, sequentially rotating the same component on the upper valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering, and sequentially rotating the same component on the lower valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering; the naming rule of the space positioning numbers of the upper valve plate assembly in the two adjacent valve plates and the lower valve plate assembly in the two adjacent valve plates is the name-number of the upper valve plate or the lower valve plate in the two adjacent valve plates;
for the multi-body hydraulic valve plate, the same component on the upper valve plate (namely the upper valve plate) in the two adjacent valve plates rotates clockwise from left to right in sequence for spatial positioning numbering, and the same component on the lower valve plate (namely the lower valve plate) in the two adjacent valve plates rotates clockwise from left to right in sequence for spatial positioning numbering;
for the split hydraulic valve plate, the upper valve plate and the middle valve plate are numbered in a space positioning mode, specifically, the same component on the upper valve plate (namely the upper valve plate) in the two adjacent valve plates rotates clockwise from left to right in sequence to be numbered in a space positioning mode, and the same component on the lower valve plate (namely the middle valve plate) in the two adjacent valve plates rotates clockwise from left to right in sequence to be numbered in a space positioning mode; then, carrying out space positioning numbering on the middle valve plate and the lower valve plate, specifically, carrying out space positioning numbering on the same component on the upper valve plate (namely the middle valve plate) in the two adjacent valve plates by clockwise rotating from left to right in sequence, and carrying out space positioning numbering on the same component on the lower valve plate (namely the lower valve plate) in the two adjacent valve plates by clockwise rotating from left to right in sequence;
the same explanation is given below for the upper valve plate and the lower valve plate of the two adjacent valve plates, and the detailed description is omitted here;
s4: constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical models of the two adjacent valve plates and the middle partition plate to obtain a plane mapping chart of the outline shape structure of the two adjacent valve plates and the middle partition plate; preprocessing a plane mapping chart of the outline shape structures of the two adjacent valve plates and the middle partition plate, and converting the plane mapping chart of the outline shape structure into a transparent outline layer;
s5: carrying out size coincidence processing on the contour shape structure of the lower surface of the upper valve plate in the two adjacent valve plates, the contour shape structure of the upper surface of the lower valve plate in the two adjacent valve plates and the contour shape structure of any surface of the middle partition plate, and carrying out coincidence check on the plane mapping diagrams of the contour shape structures of the two adjacent valve plates and the middle partition plate by taking the positioning pins of the upper surfaces of the lower valve plates in the two adjacent valve plates as reference circle centers and referring to a three-dimensional absolute position coordinate system to ensure that the absolute positions of the outer contours of the two adjacent valve plates and the middle partition plate are consistent;
s6: analyzing the oil circuit function according to the oil circuit connection relation, and designing the one-to-one correspondence relation between the oil circuit function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil path on the lower surface of the upper valve plate in the two adjacent valve plates according to the color index table; according to the color filled on the lower surface of the upper valve plate in the two adjacent valve plates, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, so that the colors of the sliding sleeve ports on the lower surface of the upper valve plate in the two adjacent valve plates are consistent with the colors of the throttling holes corresponding to the middle partition plate; according to the color of the throttling hole filling of the middle partition plate, color filling is carried out on the oil circuit on the upper surface of the lower valve plate in the two adjacent valve plates, and the color of the sliding sleeve port on the upper surface of the lower valve plate in the two adjacent valve plates is ensured to be consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents an area where an oil path flows;
s7: according to the color of the filling of the two adjacent valve plates and the middle partition plate, the space positioning serial number of the oil circuit interface on the upper surface of the upper valve plate in the two adjacent valve plates with the same color, the space positioning serial number of the oil circuit port on the lower surface of the sliding sleeve on the lower surface of the upper valve plate in the two adjacent valve plates, the space positioning serial number of the throttling hole of the middle partition plate, the space positioning serial number of the oil circuit port on the upper surface of the sliding sleeve on the lower surface of the lower valve plate in the two adjacent valve plates and the space positioning serial number of the oil drainage hole on the lower surface of the lower valve plate in the two adjacent valve plates are sequentially connected to obtain a simple assembly schematic diagram, and the simple assembly schematic diagram and the oil circuit connection relationship are stored.
As shown in fig. 1, a schematic flow chart of the method for reversely extracting the oil circuit connection relationship of the hydraulic valve plate of the automatic transmission according to embodiment 1 of the present invention is provided. The specific implementation links comprise: acquiring three-dimensional physical model data after separation of the hydraulic valve plates, firstly carrying out space positioning numbering on the hydraulic valve plate assembly, and sequentially extracting plane mapping charts of complete contour shape structures of the upper surface/lower surface of the upper valve plate, the upper surface/lower surface of the middle partition plate and the upper surface/lower surface of the lower valve plate in the two adjacent valve plates according to a space sequence; and after the overlap ratio of the extracted plane mapping chart of the outline shape structure is checked, according to sliding sleeve port structures corresponding to the valve plate sliding valve and the electromagnetic valve, the oil way flow directions represented in different outline layers are sequentially subjected to color filling according to the spatial direction sequence, and according to the same color consistency, the oil way connection relation of different sliding sleeve ports of two adjacent valve plates flowing through the partition plate throttling hole is obtained and stored in a corresponding oil way connection relation database. In order to further ensure the accuracy of the oil-way connection relation, the oil-way connection relation can be verified in the acquired three-dimensional physical model.
The following describes in detail the specific implementation process of the method for reversely extracting the oil circuit connection relationship of the hydraulic valve plate of the automatic transmission, which is provided by the present invention, when the method is respectively applied to the hydraulic valve plates with the two structures, through two specific embodiments.
Example 1: is applied to split type hydraulic valve plates.
The first step is as follows: and acquiring three-dimensional physical model data.
Acquiring three-dimensional scanning model data after the hydraulic valve plate of the automatic transmission is separated through a three-dimensional scanner and a three-dimensional measuring machine, wherein the three-dimensional scanning model data comprises three-dimensional physical model data of an upper valve plate, a middle partition plate and a lower valve plate which are separated; for the separated upper valve plate and the separated lower valve plate, three-dimensional physical model data of the upper valve plate and the lower valve plate can be obtained through scanning of a three-dimensional scanner; for the separated intermediate partition plate, the partition plate belongs to a thin-wall part, and the three-dimensional physical model data of the intermediate partition plate can be obtained by scanning through a three-coordinate measuring machine. In the process of acquiring scanning model data, the characteristic calibration object for scanning is a circular stickable sticker with the radius of 5mm, consists of a black solid with the radius of 4mm and a white outline with the annular radius of 1mm, and can be pasted into the hydraulic valve plate solid model. Meanwhile, the measurement accuracy of the three-dimensional scanner and the three-coordinate measuring machine is guaranteed to be within 0.02 mm.
The second step is that: and (6) space positioning numbering.
Three-dimensional physical model data of the upper valve plate, the middle partition plate and the lower valve plate are led into a test system, the test system can be Geomagic and Catia modeling software, the taking-out direction of the installation position of the hydraulic valve plate is taken as a positive direction, the same component on the upper valve plate sequentially rotates clockwise from left to right to carry out space positioning numbering, the same component on the lower valve plate sequentially rotates clockwise from left to right to carry out space positioning numbering, for example, 1, 2 and 3 …, the upper valve plate is defined by a letter U, and the lower valve plate is defined by a letter L; wherein the assemblies comprise solenoid valves, slide valves, one-way valves and accumulators, the solenoid valve assemblies are defined by the letter SO, the slide valve assemblies are defined by the letter SP, the one-way valve assemblies are defined by the letter CH, the accumulator assemblies are defined by the letter AC, the naming convention for the spatial orientation number of the upper and lower valve plate assemblies is the upper or lower valve plate-assembly name-number, e.g. the spatial orientation number of the first slide valve of the upper valve plate is U-SP-1. And secondly, carrying out space positioning numbering on the components on the upper valve plate and the lower valve plate, and providing name definition for subsequent oil way connection relation determination.
It should be noted that, for the inner surfaces of the upper and lower valve plates (i.e. the lower surface of the upper valve plate and the upper surface of the lower valve plate), the solenoid valve and the slide valve have different sliding sleeve structures, and different sliding sleeves are provided with different ports for oil path connection. For different sliding sleeve compositions, the innermost ports of the sliding sleeve can be numbered in sequence, and the tail parts of the space positioning numbers are marked with a mark of ". 1", ". 2", ". 3" …, for example, the first sliding valve of the upper valve plate corresponds to the innermost first port of the sliding sleeve, and the space positioning number is U-SP-1.1. After the spatial positioning serial number of the three-dimensional physical model of the hydraulic valve plate is finished, the spatial positioning serial number of the functional oil ports such as the upper surface and the lower surface of the hydraulic valve plate, a transmission oil pump, a condenser, a shell, an oil drain hole and the like can be determined, for example, for an oil path interface of the upper valve plate, a letter BO is defined, firstly, the position of an oil inlet of the upper valve plate is judged and defined as U-BO-1, and other oil path interfaces of the upper valve plate are defined by sequentially rotating clockwise by taking the position of the oil inlet as a reference; for the oil drain holes of the lower valve plate corresponding to different sliding sleeve ports, the marking (EX) can be used for distinguishing the oil drain holes, for example, the first port L-SP-1.1 at the innermost part of the sliding sleeve corresponding to the first sliding valve of the lower valve plate is also provided with oil drain holes which are defined as L-SP-1.1 (EX). The spatial positioning numbers of the corresponding components can be automatically picked from the test system for standardized and unified management.
The third step: and extracting the outline shape structure.
And constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structures of the three-dimensional physical models of the upper valve plate, the middle partition plate and the lower valve plate to obtain a plane mapping chart of the outline shape structures of the upper valve plate, the middle partition plate and the lower valve plate.
For valve plate inner surfaces that are flat: selecting a plane parallel to the inner surface of the upper valve plate (namely the lower surface of the upper valve plate) as a reference plane, carrying out deviation along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and carrying out contour shape structure extraction on a three-dimensional physical model of the upper valve plate to obtain a plane mapping chart of the contour shape structure of the upper valve plate; and selecting a plane parallel to the inner surface of the lower valve plate (namely the upper surface of the lower valve plate) as a reference plane, shifting along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate to obtain a plane mapping chart of the outline shape structure of the lower valve plate.
For a valve plate outer surface that is an uneven surface: selecting the lowest position of the outer surface of the upper valve plate (namely the upper surface of the upper valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the upper valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the upper valve plate to obtain a plane mapping chart of the outline shape structure of the upper valve plate; and selecting the lowest position of the outer surface of the lower valve plate (namely the lower surface of the lower valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the lower valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate to obtain a plane mapping chart of the outline shape structure of the lower valve plate.
Selecting a plane parallel to any surface of the intermediate partition plate as a reference plane, shifting in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, extracting the contour shape structure of the three-dimensional physical model of the intermediate partition plate, and obtaining a plane mapping chart of the contour shape structure of the intermediate partition plate.
It should be noted that the constructed three-dimensional space absolute position coordinate system and the datum plane must be referred to the horizontal position of the actual hydraulic valve plate, and cannot be set arbitrarily, so that at least any plane in the three-dimensional space absolute position coordinate system is ensured to be parallel to the inner surface of the actual hydraulic valve plate; in addition, by picking up the reference plane, the test system can generate a three-dimensional space absolute position coordinate system in a self-defined mode, and an operator can adjust the coordinate system in a self-adaptive mode. According to the spatial sequence of the upper valve plate, the middle partition plate and the lower valve plate, a plane mapping chart of the outer surface/inner surface contour shape structure of the upper valve plate, a plane mapping chart of the upper surface/lower surface contour shape structure of the middle partition plate and a plane mapping chart of the inner surface/outer surface contour shape structure of the lower valve plate can be obtained in sequence, and the plane mapping chart of the contour shape structure is a complete projection chart. After the plane mapping diagrams of the outline shape structures of the upper valve plate, the middle partition plate and the lower valve plate are obtained, the plane mapping diagrams of the outline shape structures of the upper valve plate, the middle partition plate and the lower valve plate can be preprocessed, and the plane mapping diagrams of the outline shape structures are converted into transparent outline layers.
The fourth step: and checking the coincidence degree of the contour shapes.
The contour shape structure of the inner surface of the upper valve plate, the contour shape structure of any surface of the middle partition plate and the contour shape structure of the inner surface of the lower valve plate are subjected to size coincidence processing, a positioning pin of the inner surface of the lower valve plate is used as a reference circle center, a three-dimensional space absolute position coordinate system is referred, coincidence degree verification is carried out on a plane mapping chart of the contour shape structures of the upper valve plate, the middle partition plate and the lower valve plate, a testing system can display coincidence errors in real time, and therefore the absolute position of the outer contour of the upper valve plate and the absolute position of the outer contour of the middle partition plate are guaranteed to be consistent.
The fifth step: and filling the oil way pattern layer with colors.
After the contour shape coincidence degree verification in the fourth step is completed, color definition can be performed on oil way layers of different contour shape structures, oil way colors can be filled in the defined layers, and color filling can be performed on corresponding contour line graphs by determining different oil way flow directions. Specifically, according to the oil path connection relationship, analyzing the oil path function, and designing the one-to-one correspondence relationship between the oil path function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil path on the inner surface of the upper valve plate according to the color index table; according to the color filled in the inner surface of the upper valve plate, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, and the consistent color of the sliding sleeve ports in the inner surface of the upper valve plate and the throttling holes corresponding to the middle partition plate is ensured; filling the oil way on the inner surface of the lower valve plate with color according to the color of the throttling hole of the middle partition plate, and ensuring that the color of the sliding sleeve port on the inner surface of the lower valve plate is consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents the area where the oil path flows. The method comprises the following specific steps:
(1) determining the colors of different oil circuit ports on the outer surface of the upper valve plate according to the relationship between the outer surface of the upper valve plate and an oil pump interface, a condenser interface and a shell interface, defining different oil circuit ports according to a pre-designed color index table, such as a main oil circuit, a cooling and lubricating oil circuit, a gear shifting control oil circuit, an electromagnetic valve control oil circuit and the like, painting the oil circuit ports on the outer surface of the upper valve plate according to the definition of the different oil circuit ports, and simultaneously filling corresponding oil circuits on the inner surface of the upper valve plate according to a transparent profile layer until the oil circuits flow to corresponding sliding valves on the inner surface of the upper valve plate or sliding sleeve ports corresponding to the electromagnetic valves;
(2) according to the color filled in the inner surface of the upper valve plate, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, and the consistent color of the sliding sleeve ports in the inner surface of the upper valve plate and the throttling holes corresponding to the middle partition plate is ensured; the naming rule of the space positioning serial number of the throttling hole is the serial number-OR-of the upper valve plate sliding sleeve port, the serial number and the OR serial number of the upper valve plate sliding sleeve port can be predefined, and when the serial number of the lower valve plate sliding sleeve port is determined in the step S53, the serial number definition of the supplementary throttling hole can be returned; a plurality of orifices are arranged between the oil passage ports of the upper valve plate and the lower valve plate and are numbered according to OR1, OR2 and OR3 …;
(3) the plane mapping diagram of the outline shape structure of the inner surface of the lower valve plate is overlapped with the plane mapping diagram of the outline shape structure of the colored middle partition plate, the oil circuit of the inner surface of the lower valve plate is colored and connected according to the color of the oil circuit of the middle partition plate until the oil circuit flows to the sliding sleeve port corresponding to the sliding valve or the electromagnetic valve on the inner surface of the lower valve plate, the serial number of the sliding sleeve port of the lower valve plate is defined, the space positioning serial number of the throttling hole is supplemented, and the corresponding oil drainage hole on the outer surface of the lower valve plate is painted according to the plane mapping diagram of the outline shape structure of the sliding sleeve assembly. And the color filling of the static oil way connection pattern layer of the hydraulic valve plate is completed.
And a sixth step: and determining oil path connection.
After the oil way layer color filling in the fourth step is completed and the connection condition of the oil way ports of the upper valve plate and the lower valve plate corresponding to the throttling hole of the middle partition plate is determined, the defined space positioning numbers can be connected in a database of the testing system, and the testing system can automatically draw the simple schematic diagram of the assembly according to the number definition. Specifically, according to the filling colors of the upper valve plate, the middle partition plate and the lower valve plate, the space positioning number of the oil circuit interface on the outer surface of the upper valve plate, the space positioning number of the oil circuit port on the inner surface of the upper valve plate in a sliding manner, the space positioning number of the throttling hole of the middle partition plate, the space positioning number of the oil circuit port on the inner surface of the lower valve plate in a sliding manner and the space positioning number of the oil drainage hole on the outer surface of the lower valve plate in the same color are sequentially connected to obtain a simple assembly schematic diagram, the simple assembly schematic diagram and the oil circuit connection relation are stored, the format of stored data is verified by a test system, and the standard of the defined space positioning number is met.
The seventh step: and checking oil circuit connection.
Checking is carried out in the three-dimensional physical models of the upper valve plate, the middle partition plate and the lower valve plate, on the premise that the contour coincidence degree is ensured to be consistent, the spacing distance among the three-dimensional physical models of the upper valve plate, the middle partition plate and the lower valve plate is adjusted, the view directions of the three-dimensional physical models, including different view angle directions such as a front view and a side view, are adjusted in a self-adaptive mode, and the optimized connection relation of the oil circuit of the hydraulic valve plate is obtained.
Preferably, the test system can also read the connection relationship between different oil circuit ports in the database, highlight the periphery of the oil circuit ports of the sliding sleeve corresponding to the upper valve plate and the lower valve plate, connect the oil circuit ports of the upper valve plate and the lower valve plate through a solid line through a middle partition plate throttling hole, and set and adjust the color and the line width of the connection solid line to ensure that the connection relationship of the oil circuits is clear.
In the operation implementation process of the test system, the three-dimensional physical model data and the oil way layer color filling schematic diagram can be automatically stored in the test system, and an oil way connection relation analysis report is output in a document template form defined by the test system.
Example 2: is applied to a multi-body type hydraulic valve plate.
The first step is as follows: and acquiring three-dimensional physical model data.
Acquiring three-dimensional scanning model data after the separation of the hydraulic valve plate of the automatic transmission through a three-dimensional scanner and a three-dimensional measuring machine, wherein the three-dimensional scanning model data comprises three-dimensional physical model data of an upper valve plate, a middle partition plate, a middle valve plate, the middle partition plate and a lower valve plate after the separation; for the separated upper valve plate, the middle valve plate and the lower valve plate, three-dimensional physical model data of the upper valve plate, the middle valve plate and the lower valve plate can be obtained through scanning of a three-dimensional scanner; for the separated intermediate partition plate, the partition plate belongs to a thin-wall part, and the three-dimensional physical model data of the intermediate partition plate can be obtained by scanning through a three-coordinate measuring machine. In the process of acquiring scanning model data, the characteristic calibration object for scanning is a circular stickable sticker with the radius of 5mm, consists of a black solid with the radius of 4mm and a white outline with the annular radius of 1mm, and can be pasted into the hydraulic valve plate solid model. Meanwhile, the measurement accuracy of the three-dimensional scanner and the three-coordinate measuring machine is guaranteed to be within 0.02 mm.
And then, firstly, carrying out the second step to the seventh step on the upper valve plate, the middle valve plate and the middle partition plate between the upper valve plate and the middle valve plate.
The second step is that: and (6) space positioning numbering.
Three-dimensional physical model data of the upper valve plate, the middle partition plate and the middle valve plate are led into a test system, the test system can be Geomagic and Catia modeling software, the taking-out direction of the installation position of the hydraulic valve plate is taken as a positive direction, the same component on the upper valve plate sequentially rotates clockwise from left to right to carry out space positioning numbering, the same component on the middle valve plate sequentially rotates clockwise from left to right to carry out space positioning numbering, for example, 1, 2 and 3 …, the upper valve plate is defined by a letter U, and the middle valve plate is defined by a letter L; wherein the assemblies comprise solenoid valves, slide valves, check valves and accumulators, the solenoid valve assemblies are defined by the letter SO, the slide valve assemblies are defined by the letter SP, the check valve assemblies are defined by the letter CH, the accumulator assemblies are defined by the letter AC, the naming convention of the spatial positioning numbers of the upper and middle valve plate assemblies is the upper or middle valve plate-assembly name-number, for example, the spatial positioning number of the first slide valve of the upper valve plate is U-SP-1. And secondly, carrying out space positioning numbering on the components on the upper valve plate and the middle valve plate, and providing name definition for subsequent oil way connection relation determination.
It should be noted that, for the inner surfaces of the upper and middle valve plates (i.e. the lower surface of the upper valve plate and the upper surface of the middle valve plate), the solenoid valve and the sliding valve have different sliding sleeve structures, and different sliding sleeves are provided with different ports for oil path connection. For different sliding sleeve compositions, the innermost ports of the sliding sleeve can be numbered in sequence, and the tail parts of the space positioning numbers are marked with a mark of ". 1", ". 2", ". 3" …, for example, the first sliding valve of the upper valve plate corresponds to the innermost first port of the sliding sleeve, and the space positioning number is U-SP-1.1. After the spatial positioning serial number of the three-dimensional physical model of the hydraulic valve plate is finished, the spatial positioning serial number of the functional oil ports such as the upper surface and the lower surface of the hydraulic valve plate, a transmission oil pump, a condenser, a shell, an oil drain hole and the like can be determined, for example, for an oil path interface of the upper valve plate, a letter BO is defined, firstly, the position of an oil inlet of the upper valve plate is judged and defined as U-BO-1, and other oil path interfaces of the upper valve plate are defined by sequentially rotating clockwise by taking the position of the oil inlet as a reference; for the oil drain holes of the middle valve plate corresponding to different sliding sleeve ports, the marking (EX) can be used for distinguishing the oil drain holes, for example, the first port L-SP-1.1 of the first sliding valve of the middle valve plate corresponding to the innermost sliding sleeve is also provided with oil drain holes which are defined as L-SP-1.1 (EX). The spatial positioning numbers of the corresponding components can be automatically picked from the test system for standardized and unified management.
The third step: and extracting the outline shape structure.
And constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical models of the upper valve plate, the middle partition plate and the middle valve plate to obtain a plane mapping chart of the outline shape structure of the upper valve plate, the middle partition plate and the middle valve plate.
For valve plate inner surfaces that are flat: selecting a plane parallel to the inner surface of the upper valve plate (namely the lower surface of the upper valve plate) as a reference plane, carrying out deviation along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and carrying out contour shape structure extraction on a three-dimensional physical model of the upper valve plate to obtain a plane mapping chart of the contour shape structure of the upper valve plate; selecting a plane parallel to the inner surface of the middle valve plate (namely the upper surface of the middle valve plate) as a reference plane, carrying out deviation along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, carrying out outline shape structure extraction on a three-dimensional physical model of the middle valve plate, and obtaining a plane mapping chart of the outline shape structure of the middle valve plate.
For a valve plate outer surface that is an uneven surface: selecting the lowest position of the outer surface of the upper valve plate (namely the upper surface of the upper valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the upper valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the upper valve plate to obtain a plane mapping chart of the outline shape structure of the upper valve plate; selecting the lowest position of the outer surface of the middle valve plate (namely the lower surface of the middle valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the middle valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the middle valve plate to obtain a plane mapping chart of the outline shape structure of the middle valve plate.
Selecting a plane parallel to any surface of the intermediate partition plate as a reference plane, shifting in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, extracting the contour shape structure of the three-dimensional physical model of the intermediate partition plate, and obtaining a plane mapping chart of the contour shape structure of the intermediate partition plate.
It should be noted that the constructed three-dimensional space absolute position coordinate system and the datum plane must be referred to the horizontal position of the actual hydraulic valve plate, and cannot be set arbitrarily, so that at least any plane in the three-dimensional space absolute position coordinate system is ensured to be parallel to the inner surface of the actual hydraulic valve plate; in addition, by picking up the reference plane, the test system can generate a three-dimensional space absolute position coordinate system in a self-defined mode, and an operator can adjust the coordinate system in a self-adaptive mode. According to the spatial sequence of the upper valve plate, the middle partition plate and the middle valve plate, a plane mapping diagram of the outline shape structure of the outer surface/inner surface of the upper valve plate, a plane mapping diagram of the outline shape structure of the upper surface/lower surface of the middle partition plate and a plane mapping diagram of the outline shape structure of the inner surface/outer surface of the middle valve plate can be obtained in sequence, and the plane mapping diagram of the outline shape structure is a complete projection diagram. After the plane mapping diagrams of the outline shape structures of the upper valve plate, the middle partition plate and the middle valve plate are obtained, the plane mapping diagrams of the outline shape structures of the upper valve plate, the middle partition plate and the middle valve plate can be preprocessed, and the plane mapping diagrams of the outline shape structures are converted into transparent outline layers.
The fourth step: and checking the coincidence degree of the contour shapes.
The contour shape structure of the inner surface of the upper valve plate, the contour shape structure of any surface of the middle partition plate and the contour shape structure of the inner surface of the middle valve plate are subjected to size coincidence processing, a positioning pin of the inner surface of the middle valve plate is used as a reference circle center, a plane mapping chart of the contour shape structures of the upper valve plate, the middle partition plate and the middle valve plate is subjected to coincidence degree verification by referring to a three-dimensional absolute position coordinate system, and a testing system can display coincidence errors in real time so as to ensure that the absolute positions of the outer contours of the upper valve plate and the middle valve plate are consistent with the absolute position of the outer contour of the middle partition plate.
The fifth step: and filling the oil way pattern layer with colors.
After the contour shape coincidence degree verification in the fourth step is completed, color definition can be performed on oil way layers of different contour shape structures, oil way colors can be filled in the defined layers, and color filling can be performed on corresponding contour line graphs by determining different oil way flow directions. Specifically, according to the oil path connection relationship, analyzing the oil path function, and designing the one-to-one correspondence relationship between the oil path function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil path on the inner surface of the upper valve plate according to the color index table; according to the color filled in the inner surface of the upper valve plate, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, and the consistent color of the sliding sleeve ports in the inner surface of the upper valve plate and the throttling holes corresponding to the middle partition plate is ensured; filling the color of the oil way on the inner surface of the middle valve plate according to the color of the filling of the throttling hole of the middle partition plate, and ensuring that the color of the sliding sleeve port on the inner surface of the middle valve plate is consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents the area where the oil path flows. The method comprises the following specific steps:
(1) determining the colors of different oil circuit ports on the outer surface of the upper valve plate according to the relationship between the outer surface of the upper valve plate and an oil pump interface, a condenser interface and a shell interface, defining different oil circuit ports according to a pre-designed color index table, such as a main oil circuit, a cooling and lubricating oil circuit, a gear shifting control oil circuit, an electromagnetic valve control oil circuit and the like, painting the oil circuit ports on the outer surface of the upper valve plate according to the definition of the different oil circuit ports, and simultaneously filling corresponding oil circuits on the inner surface of the upper valve plate according to a transparent profile layer until the oil circuits flow to corresponding sliding valves on the inner surface of the upper valve plate or sliding sleeve ports corresponding to the electromagnetic valves;
(2) according to the color filled in the inner surface of the upper valve plate, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, and the consistent color of the sliding sleeve ports in the inner surface of the upper valve plate and the throttling holes corresponding to the middle partition plate is ensured; the naming rule of the space positioning serial number of the throttling hole is the serial number-OR-middle valve plate sliding sleeve port serial number of the upper valve plate sliding sleeve, the serial number and the OR serial number of the upper valve plate sliding sleeve port can be predefined, and when the serial number of the middle valve plate sliding sleeve port is determined in the step S53, the serial number definition of the supplementary throttling hole can be returned; a plurality of orifices exist between the oil passage ports of the upper valve plate and the middle valve plate, and are numbered according to OR1, OR2 and OR3 …;
(3) the plane mapping diagram of the outline shape structure of the inner surface of the middle valve plate is overlapped with the plane mapping diagram of the outline shape structure of the colored middle partition plate, the oil circuit of the inner surface of the middle valve plate is colored and connected according to the color of the oil circuit of the middle partition plate until the oil circuit flows to the sliding sleeve port corresponding to the sliding valve or the electromagnetic valve on the inner surface of the middle valve plate, the serial number of the sliding sleeve port of the middle valve plate is defined, the space positioning serial number of the throttling hole is supplemented, and the corresponding oil drainage hole on the outer surface of the middle valve plate is colored according to the plane mapping diagram of the outline shape structure of the sliding sleeve component. And the color filling of the static oil way connection pattern layer of the hydraulic valve plate is completed.
And a sixth step: and determining oil path connection.
After the oil way layer color filling in the fourth step is completed and the connection condition of the oil way ports of the upper valve plate and the middle valve plate corresponding to the throttling hole of the middle partition plate is determined, the defined space positioning numbers can be connected in a database of the testing system, and the testing system can automatically draw the simple schematic diagram of the component according to the number definition. Specifically, according to the color of the upper valve plate, the middle partition plate and the middle valve plate, the space positioning number of the oil circuit interface on the outer surface of the upper valve plate, the space positioning number of the oil circuit port of the sliding sleeve on the inner surface of the upper valve plate, the space positioning number of the throttling hole of the middle partition plate, the space positioning number of the oil circuit port of the sliding sleeve on the inner surface of the middle valve plate and the space positioning number of the oil drainage hole on the outer surface of the middle valve plate are sequentially connected to obtain a simple assembly schematic diagram, the simple assembly schematic diagram and the oil circuit connection relation are stored, the format of the stored data is verified by a test system, and the standard of the defined space positioning number is met.
The seventh step: and checking oil circuit connection.
Checking the three-dimensional physical models of the upper valve plate, the middle partition plate and the middle valve plate, adjusting the spacing distance among the three-dimensional physical models of the upper valve plate, the middle partition plate and the middle valve plate on the premise of ensuring the consistency of contour overlap, and adaptively adjusting the view directions of the three-dimensional physical models, including different view angle directions such as a front view, a side view and the like, so as to obtain the optimized oil circuit connection relation of the hydraulic valve plate.
Preferably, the test system can also read the connection relationship between different oil circuit ports in the database, highlight the periphery of the oil circuit port of the sliding sleeve corresponding to the upper valve plate and the middle valve plate, connect the oil circuit ports of the upper valve plate and the middle valve plate through a solid line by a middle partition plate throttling hole, and set and adjust the color and the line width of the connection solid line to ensure that the connection relationship of the oil circuits is clear.
In the operation implementation process of the test system, the three-dimensional physical model data and the oil way layer color filling schematic diagram can be automatically stored in the test system, and an oil way connection relation analysis report is output in a document template form defined by the test system.
And thirdly, performing operations of the eighth step to the thirteenth step on the centering valve plate, the lower valve plate and the intermediate partition plate between the centering valve plate and the lower valve plate.
Eighth step: and (6) space positioning numbering.
Three-dimensional physical model data of the middle valve plate, the middle partition plate and the lower valve plate are led into a test system, the test system can be Geomagic and Catia modeling software, the taking-out direction of the installation position of the hydraulic valve plate is taken as a positive direction, the same component on the middle valve plate rotates clockwise from left to right in sequence to carry out space positioning numbering, the same component on the lower valve plate rotates clockwise from left to right in sequence to carry out space positioning numbering, for example, 1, 2 and 3 …, the middle valve plate is defined by a letter U, and the lower valve plate is defined by a letter L; the components comprise a solenoid valve, a slide valve, a one-way valve and an energy accumulator, wherein the solenoid valve component is defined by a letter SO, the slide valve component is defined by a letter SP, the one-way valve component is defined by a letter CH, the energy accumulator component is defined by a letter AC, the naming rule of the space positioning numbers of the middle valve plate component and the lower valve plate component is the name-number of the middle valve plate or the name-number of the lower valve plate-component, for example, the space positioning number of the first slide valve of the middle valve plate is U-SP-1. And in the second step, the components on the middle and lower valve plates are subjected to space positioning numbering, so that name definition can be provided for the determination of the subsequent oil circuit connection relation.
It should be noted that, for the inner surfaces of the middle valve plate and the lower valve plate (i.e. the lower surface of the middle valve plate and the upper surface of the lower valve plate), the solenoid valve and the slide valve have different sliding sleeve structures, and different sliding sleeves are provided with different ports for oil circuit connection. For different sliding sleeve compositions, the innermost ports of the sliding sleeve can be numbered in sequence, and the tail parts of the space positioning numbers are marked with a mark of ". 1", ". 2", ". 3" …, for example, the first sliding valve of the middle valve plate corresponds to the innermost first port of the sliding sleeve, and the space positioning number is U-SP-1.1. After the space positioning serial number of the three-dimensional physical model of the hydraulic valve plate is finished, the space positioning serial number of the functional oil ports such as the upper surface and the lower surface of the hydraulic valve plate, a transmission oil pump, a condenser, a shell, an oil drain hole and the like can be determined, for example, for an oil path interface of the middle valve plate, a letter BO is defined, the position of an oil inlet of the middle valve plate is judged firstly and defined as U-BO-1, and other oil path interfaces of the middle valve plate are defined by sequentially rotating clockwise by taking the position of the oil inlet as a reference; for the oil drain holes of the lower valve plate corresponding to different sliding sleeve ports, the marking (EX) can be used for distinguishing the oil drain holes, for example, the first port L-SP-1.1 at the innermost part of the sliding sleeve corresponding to the first sliding valve of the lower valve plate is also provided with oil drain holes which are defined as L-SP-1.1 (EX). The spatial positioning numbers of the corresponding components can be automatically picked from the test system for standardized and unified management.
The ninth step: and extracting the outline shape structure.
And constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting contour shape structures of three-dimensional physical models of the middle valve plate, the middle partition plate and the lower valve plate to obtain a plane mapping chart of the contour shape structures of the middle valve plate, the middle partition plate and the lower valve plate.
For valve plate inner surfaces that are flat: selecting a plane parallel to the inner surface of the middle valve plate (namely the lower surface of the middle valve plate) as a reference plane, carrying out deviation along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and carrying out outline shape structure extraction on a three-dimensional physical model of the middle valve plate to obtain a plane mapping chart of the outline shape structure of the middle valve plate; and selecting a plane parallel to the inner surface of the lower valve plate (namely the upper surface of the lower valve plate) as a reference plane, shifting along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate to obtain a plane mapping chart of the outline shape structure of the lower valve plate.
For a valve plate outer surface that is an uneven surface: selecting the lowest position of the outer surface of the middle valve plate (namely the upper surface of the middle valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the middle valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the middle valve plate to obtain a plane mapping chart of the outline shape structure of the middle valve plate; and selecting the lowest position of the outer surface of the lower valve plate (namely the lower surface of the lower valve plate) as a reference plane, sequentially offsetting the highest position of the outer surface of the lower valve plate along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate to obtain a plane mapping chart of the outline shape structure of the lower valve plate.
Selecting a plane parallel to any surface of the intermediate partition plate as a reference plane, shifting in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, extracting the contour shape structure of the three-dimensional physical model of the intermediate partition plate, and obtaining a plane mapping chart of the contour shape structure of the intermediate partition plate.
It should be noted that the constructed three-dimensional space absolute position coordinate system and the datum plane must be referred to the horizontal position of the actual hydraulic valve plate, and cannot be set arbitrarily, so that at least any plane in the three-dimensional space absolute position coordinate system is ensured to be parallel to the inner surface of the actual hydraulic valve plate; in addition, by picking up the reference plane, the test system can generate a three-dimensional space absolute position coordinate system in a self-defined mode, and an operator can adjust the coordinate system in a self-adaptive mode. According to the spatial sequence of the middle valve plate, the middle partition plate and the lower valve plate, a plane mapping diagram of the contour shape structure of the outer surface/inner surface of the middle valve plate, a plane mapping diagram of the contour shape structure of the upper surface/lower surface of the middle partition plate and a plane mapping diagram of the contour shape structure of the inner surface/outer surface of the lower valve plate can be obtained in sequence, and the plane mapping diagram of the contour shape structure is a complete projection diagram. After the plane mapping diagrams of the outline shape structures of the middle valve plate, the middle partition plate and the lower valve plate are obtained, the plane mapping diagrams of the outline shape structures of the middle valve plate, the middle partition plate and the lower valve plate can be preprocessed, and the plane mapping diagrams of the outline shape structures are converted into transparent outline layers.
The tenth step: and checking the coincidence degree of the contour shapes.
The contour shape structure of the inner surface of the middle valve plate, the contour shape structure of any surface of the middle partition plate and the contour shape structure of the inner surface of the lower valve plate are subjected to size coincidence processing, a positioning pin of the inner surface of the lower valve plate is used as a reference circle center, a three-dimensional absolute position coordinate system is referred to, coincidence degree check is carried out on a plane mapping chart of the contour shape structures of the middle valve plate, the middle partition plate and the lower valve plate, a testing system can display coincidence errors in real time, and therefore the absolute positions of the outer contours of the middle valve plate and the lower valve plate are guaranteed to be consistent with the absolute position of the outer contour of the middle partition plate.
The eleventh step: and filling the oil way pattern layer with colors.
After the contour shape coincidence degree verification in the fourth step is completed, color definition can be performed on oil way layers of different contour shape structures, oil way colors can be filled in the defined layers, and color filling can be performed on corresponding contour line graphs by determining different oil way flow directions. Specifically, according to the oil path connection relationship, analyzing the oil path function, and designing the one-to-one correspondence relationship between the oil path function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil way on the inner surface of the middle valve plate according to the color index table; carrying out space positioning numbering and color filling on the throttling hole of the middle partition plate according to the color filled in the inner surface of the middle valve plate, and ensuring that the color of the sliding sleeve port of the inner surface of the middle valve plate is consistent with that of the throttling hole corresponding to the middle partition plate; filling the oil way on the inner surface of the lower valve plate with color according to the color of the throttling hole of the middle partition plate, and ensuring that the color of the sliding sleeve port on the inner surface of the lower valve plate is consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents the area where the oil path flows. The method comprises the following specific steps:
(1) determining the colors of different oil circuit ports on the outer surface of the middle valve plate according to the relationship between the outer surface of the middle valve plate and an oil pump interface, a condenser interface and a shell interface, defining different oil circuit ports according to a pre-designed color index table, such as a main oil circuit, a cooling and lubricating oil circuit, a gear shifting control oil circuit, an electromagnetic valve control oil circuit and the like, painting the oil circuit ports on the outer surface of the middle valve plate according to the definition of the different oil circuit ports, and simultaneously filling corresponding oil circuits on the inner surface of the middle valve plate according to a transparent profile layer until the oil circuits flow to corresponding sliding valves on the inner surface of the middle valve plate or sliding sleeve ports corresponding to the electromagnetic valves;
(2) carrying out space positioning numbering and color filling on the throttling hole of the middle partition plate according to the color filled in the inner surface of the middle valve plate, and ensuring that the color of the sliding sleeve port of the inner surface of the middle valve plate is consistent with that of the throttling hole corresponding to the middle partition plate; the naming rule of the space positioning serial number of the throttling hole is the serial number-OR-of the middle valve plate sliding sleeve port, the serial number and the OR serial number of the middle valve plate sliding sleeve port can be predefined, and when the serial number of the lower valve plate sliding sleeve port is determined in the step S53, the serial number definition of the supplementary throttling hole can be returned; a plurality of orifices are arranged between the oil passage ports of the middle valve plate and the lower valve plate and are numbered according to OR1, OR2 and OR3 …;
(3) the plane mapping diagram of the outline shape structure of the inner surface of the lower valve plate is overlapped with the plane mapping diagram of the outline shape structure of the colored middle partition plate, the oil circuit of the inner surface of the lower valve plate is colored and connected according to the color of the oil circuit of the middle partition plate until the oil circuit flows to the sliding sleeve port corresponding to the sliding valve or the electromagnetic valve on the inner surface of the lower valve plate, the serial number of the sliding sleeve port of the lower valve plate is defined, the space positioning serial number of the throttling hole is supplemented, and the corresponding oil drainage hole on the outer surface of the lower valve plate is painted according to the plane mapping diagram of the outline shape structure of the sliding sleeve assembly. And the color filling of the static oil way connection pattern layer of the hydraulic valve plate is completed.
The twelfth step: and determining oil path connection.
After the oil way layer color filling in the fourth step is completed and the connection condition of the oil way ports of the middle and lower valve plates corresponding to the throttling hole of the middle partition plate is determined, the defined space positioning numbers can be connected in a database of the test system, and the test system can automatically draw the simple schematic diagram of the assembly according to the number definition. Specifically, according to the filling colors of the middle valve plate, the middle partition plate and the lower valve plate, the space positioning number of the oil circuit interface on the outer surface of the middle valve plate, the space positioning number of the oil circuit port on the inner surface of the middle valve plate in a sliding manner, the space positioning number of the throttling hole of the middle partition plate, the space positioning number of the oil circuit port on the inner surface of the lower valve plate in a sliding manner and the space positioning number of the oil drainage hole on the outer surface of the lower valve plate in the same color are sequentially connected to obtain a simple assembly schematic diagram, the simple assembly schematic diagram and the oil circuit connection relation are stored, the format of stored data is verified by a test system, and the standard of the defined space positioning number is met.
The thirteenth step: and checking oil circuit connection.
Checking is carried out in the three-dimensional physical models of the middle valve plate, the middle partition plate and the lower valve plate, on the premise that the contour coincidence degree is consistent, the spacing distance among the three-dimensional physical models of the middle valve plate, the middle partition plate and the lower valve plate is adjusted, the view directions of the three-dimensional physical models, including different view angle directions such as a front view and a side view, are adjusted in a self-adaptive mode, and the optimized connection relation of the oil passages of the hydraulic valve plate is obtained.
Preferably, the test system can also read the connection relationship between different oil circuit ports in the database, highlight the periphery of the oil circuit ports of the sliding sleeve corresponding to the middle valve plate and the lower valve plate, connect the oil circuit ports of the middle valve plate and the lower valve plate through a middle partition plate throttling hole in a solid line manner, and set and adjust the color and the line width of the connection solid line manner, so that the clear connection relationship of the oil circuits is ensured.
In the operation implementation process of the test system, the three-dimensional physical model data and the oil way layer color filling schematic diagram can be automatically stored in the test system, and an oil way connection relation analysis report is output in a document template form defined by the test system.
The invention integrates complicated manual operation steps or steps which can be implemented by a certain link by using a computer into the same test system, integrates all operation links for reversely analyzing the oil circuit connection of the hydraulic valve plate of the automatic transmission, greatly improves the working efficiency of the oil circuit connection analysis of the hydraulic valve plate and ensures the accuracy of the reverse oil circuit connection relation.
According to the reverse extraction method for the connection relation of the oil circuit of the hydraulic valve plate of the automatic transmission, provided by the invention, a physical simulation model is quickly built for reverse simulation analysis, and complete and accurate physical model data are provided for a tool actual measurement test on the basis of determining the structure principle of the hydraulic valve plate. The method can quickly meet the determination of reverse connection of oil passages of hydraulic valve plates of different automatic transmissions, and can ensure the connection accuracy of the oil passages according to the color consistency of the image layer. The invention adopts the three-dimensional digital physical model as data input, can ensure that the contour shapes extracted by different valve plates have consistent structure sizes, and can ensure the reliability of oil circuit connection analysis sources compared with manual mapping. According to the invention, complicated manual operation steps or steps which can be implemented by a certain link through a computer are integrated in the same test system, and all operation links for reversely analyzing the oil circuit connection of the hydraulic valve plate of the automatic transmission are integrated, so that the time for reversely analyzing the oil circuit connection of the hydraulic valve plate can be shortened, the working efficiency of reversely analyzing the oil circuit connection of the hydraulic valve plate can be improved, and the accuracy of the connection relation of the reverse oil circuit can be ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (6)

1. A reverse extraction method for an oil circuit connection relation of a hydraulic valve plate of an automatic transmission is characterized by comprising the following steps:
s1: disassembling the hydraulic valve plate of the automatic transmission to obtain two or three valve plates and a middle partition plate positioned between two adjacent valve plates, respectively obtaining three-dimensional physical model data of each valve plate through a three-dimensional scanner, and obtaining the three-dimensional physical model data of the middle partition plate by using a three-dimensional coordinate measuring machine;
s2: respectively executing the steps S3-S7 for every two adjacent valve plates;
s3: taking the taking-out direction of the mounting position of the hydraulic valve plate as the positive direction, sequentially rotating the same component on the upper valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering, and sequentially rotating the same component on the lower valve plate in the two adjacent valve plates clockwise from left to right for spatial positioning numbering; the naming rule of the space positioning number of the upper valve plate assembly in the two adjacent valve plates and the space positioning number of the lower valve plate assembly in the two adjacent valve plates is the name-number of the upper valve plate or the lower valve plate-assembly in the two adjacent valve plates;
s4: constructing a three-dimensional absolute position coordinate system and a reference plane, shifting the reference plane in the three-dimensional absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical models of the two adjacent valve plates and the middle partition plate to obtain a plane mapping chart of the outline shape structure of the two adjacent valve plates and the middle partition plate; preprocessing a plane mapping chart of the outline shape structures of the two adjacent valve plates and the middle partition plate, and converting the plane mapping chart of the outline shape structure into a transparent outline layer;
s5: carrying out size coincidence processing on the contour shape structure of the lower surface of the upper valve plate in the two adjacent valve plates, the contour shape structure of the upper surface of the lower valve plate in the two adjacent valve plates and the contour shape structure of any surface of the middle partition plate, and carrying out coincidence check on the plane mapping diagrams of the contour shape structures of the two adjacent valve plates and the middle partition plate by taking the positioning pins of the upper surfaces of the lower valve plates in the two adjacent valve plates as reference circle centers and referring to a three-dimensional absolute position coordinate system to ensure that the absolute positions of the outer contours of the two adjacent valve plates and the middle partition plate are consistent;
s6: analyzing the oil circuit function according to the oil circuit connection relation, and designing the one-to-one correspondence relation between the oil circuit function and the color to obtain a color index table; filling colors in the closed contour of the interior of each oil path on the lower surface of the upper valve plate in the two adjacent valve plates according to the color index table; according to the color filled on the lower surface of the upper valve plate in the two adjacent valve plates, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, so that the colors of the sliding sleeve ports on the lower surface of the upper valve plate in the two adjacent valve plates are consistent with the colors of the throttling holes corresponding to the middle partition plate; according to the color of the throttling hole filling of the middle partition plate, color filling is carried out on the oil circuit on the upper surface of the lower valve plate in the two adjacent valve plates, and the color of the sliding sleeve port on the upper surface of the lower valve plate in the two adjacent valve plates is ensured to be consistent with the color of the throttling hole corresponding to the middle partition plate; wherein the inner closed contour represents an area where an oil path flows;
s7: according to the color of the filling of the two adjacent valve plates and the middle partition plate, the space positioning serial number of the oil circuit interface on the upper surface of the upper valve plate in the two adjacent valve plates with the same color, the space positioning serial number of the oil circuit port on the lower surface of the sliding sleeve on the lower surface of the upper valve plate in the two adjacent valve plates, the space positioning serial number of the throttling hole of the middle partition plate, the space positioning serial number of the oil circuit port on the upper surface of the sliding sleeve on the lower surface of the lower valve plate in the two adjacent valve plates and the space positioning serial number of the oil drainage hole on the lower surface of the lower valve plate in the two adjacent valve plates are sequentially connected to obtain a simple assembly schematic diagram, and the simple assembly schematic diagram and the oil circuit connection relationship are stored.
2. The method for reversely extracting the oil circuit connection relationship between the hydraulic valve plates of the automatic transmission as claimed in claim 1, wherein in step S4, a three-dimensional space absolute position coordinate system and a reference plane are constructed, the reference plane is shifted in the three-dimensional space absolute position coordinate system along a direction perpendicular to the reference plane, and contour shape structure extraction is performed on three-dimensional physical models of two adjacent valve plates and a middle partition plate, so as to obtain a plane mapping diagram of the contour shape structures of the two adjacent valve plates and the middle partition plate, which specifically comprises:
for the inner surfaces of the valve plates to be flat surfaces, selecting a plane parallel to the lower surfaces of the upper valve plates in the two adjacent valve plates as a reference plane, performing deviation in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, and performing contour shape structure extraction on a three-dimensional physical model of the upper valve plate in the two adjacent valve plates to obtain a plane mapping chart of the contour shape structure of the upper valve plate in the two adjacent valve plates; selecting a plane parallel to the upper surface of the lower valve plate in the two adjacent valve plates as a reference plane, shifting the plane in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate in the two adjacent valve plates to obtain a plane mapping chart of the outline shape structure of the lower valve plate in the two adjacent valve plates;
for the outer surfaces of the valve plates which are uneven, selecting the lowest position of the upper surfaces of the upper valve plates in the two adjacent valve plates as a reference plane, sequentially offsetting the highest position of the upper surfaces of the upper valve plates in the two adjacent valve plates along the direction vertical to the reference plane in a three-dimensional space absolute position coordinate system, extracting the outline shape structure of the three-dimensional physical model of the upper valve plate in the two adjacent valve plates, and obtaining a plane mapping chart of the outline shape structure of the upper valve plate in the two adjacent valve plates; selecting the lowest position of the lower surface of the lower valve plate in the two adjacent valve plates as a reference plane, sequentially offsetting the lowest position of the lower surface of the lower valve plate in the two adjacent valve plates along a direction perpendicular to the reference plane in a three-dimensional absolute position coordinate system, and extracting the outline shape structure of the three-dimensional physical model of the lower valve plate in the two adjacent valve plates to obtain a plane mapping chart of the outline shape structure of the lower valve plate in the two adjacent valve plates;
selecting a plane parallel to any surface of the intermediate partition plate as a reference plane, shifting in a three-dimensional space absolute position coordinate system along a direction vertical to the reference plane, extracting the contour shape structure of the three-dimensional physical model of the intermediate partition plate, and obtaining a plane mapping chart of the contour shape structure of the intermediate partition plate.
3. The method for reversely extracting the oil circuit connection relation of the hydraulic valve plate of the automatic transmission according to claim 1, wherein the step S6 specifically comprises the following steps:
s61: determining the colors of different oil circuit ports on the upper surface of the upper valve plate in the two adjacent valve plates according to the relationship between the upper surface of the upper valve plate in the two adjacent valve plates and an oil pump interface, a condenser interface and a shell interface, defining different oil circuit ports according to a pre-designed color index table, painting the oil circuit ports on the upper surface of the upper valve plate in the two adjacent valve plates according to the definitions of the different oil circuit ports, and simultaneously filling corresponding oil circuits on the lower surface of the upper valve plate in the two adjacent valve plates according to a transparent profile layer until the oil circuits flow to sliding sleeve ports corresponding to sliding valves or electromagnetic valves on the lower surface of the upper valve plate in the two adjacent valve plates;
s62: according to the color filled on the lower surface of the upper valve plate in the two adjacent valve plates, the throttling holes of the middle partition plate are subjected to space positioning numbering and color filling, so that the colors of the sliding sleeve ports on the lower surface of the upper valve plate in the two adjacent valve plates are consistent with the colors of the throttling holes corresponding to the middle partition plate; the naming rule of the space positioning serial number of the throttling hole is that the serial number of sliding sleeve ports of upper valve plates in two adjacent valve plates is-OR-the serial number of sliding sleeve ports of lower valve plates in two adjacent valve plates, the serial numbers and the OR serial numbers of sliding sleeve ports of upper valve plates in two adjacent valve plates are predefined, and a plurality of throttling holes exist between the oil circuit ports of the upper valve plates in two adjacent valve plates and the oil circuit ports of the lower valve plates in two adjacent valve plates and are numbered according to OR1, OR2 and OR3 …;
s63: the plane mapping diagram of the outline shape structure of the upper surface of the lower valve plate in the two adjacent valve plates is overlapped with the plane mapping diagram of the outline shape structure of the colored intermediate partition plate, the oil circuit of the upper surface of the lower valve plate in the two adjacent valve plates is colored and connected according to the color of the oil circuit of the intermediate partition plate until the oil circuit flows to the sliding sleeve ports corresponding to the sliding valves or the electromagnetic valves on the upper surfaces of the lower valve plates in the two adjacent valve plates, the sliding sleeve port numbers of the lower valve plates in the two adjacent valve plates are defined, the space positioning numbers of the throttling holes are supplemented, and the corresponding oil drainage holes on the lower surfaces of the lower valve plates in the two adjacent valve plates are colored according to the plane mapping diagram of the outline shape structure of the sliding sleeve assembly.
4. The method for reversely extracting the oil circuit connection relationship of the hydraulic valve plate of the automatic transmission according to any one of claims 1 to 3, wherein after the step S7 is executed, the method further comprises the following steps:
s8: and checking the three-dimensional physical models of the two adjacent valve plates and the middle partition plate, adjusting the spacing distance between the three-dimensional physical models of the two adjacent valve plates and the middle partition plate on the premise of ensuring the consistency of contour overlap, and adaptively adjusting the view direction of the three-dimensional physical models to obtain the optimized hydraulic valve plate oil circuit connection relation.
5. The method for reversely extracting the oil path connection relationship of the hydraulic valve plate of the automatic transmission according to claim 4, further comprising the steps of, after the step S8 is executed:
s9: highlighting the peripheries of the sliding sleeve oil way ports corresponding to the upper valve plate and the lower valve plate in the two adjacent valve plates, connecting the oil way ports of the upper valve plate and the lower valve plate in the two adjacent valve plates through a middle partition plate throttling hole in a solid line manner, and setting and adjusting the color and the line width of the connecting solid line.
6. The method for reversely extracting the oil path connection relationship of the hydraulic valve plate of the automatic transmission according to claim 5, further comprising the steps of, after the step S9 is executed:
s10: and storing the three-dimensional physical model data and the oil way layer color filling schematic diagram, and outputting an oil way connection relation analysis report.
CN202110645076.XA 2021-06-10 2021-06-10 Reverse extraction method for connection relation of hydraulic valve plate oil circuit of automatic transmission Active CN113090612B (en)

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CN110053263A (en) * 2019-06-05 2019-07-26 上海幻嘉信息科技有限公司 Software dicing method based on colored photocuring 3D printer
CN110529588A (en) * 2019-09-24 2019-12-03 北京航空航天大学 New-energy automobile hydraulic valve plate assembly and speed changer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006016151A2 (en) * 2004-08-11 2006-02-16 Bespak Plc Improvements in metering valves for dispensers
CN103256366A (en) * 2013-01-30 2013-08-21 杭州前进齿轮箱集团股份有限公司 Oil way system of multi-gear hydrodynamic transmission
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