CN114200532B - Device and method for detecting residues in casting case of aero-engine - Google Patents
Device and method for detecting residues in casting case of aero-engine Download PDFInfo
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- CN114200532B CN114200532B CN202111525047.6A CN202111525047A CN114200532B CN 114200532 B CN114200532 B CN 114200532B CN 202111525047 A CN202111525047 A CN 202111525047A CN 114200532 B CN114200532 B CN 114200532B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 47
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- 230000001678 irradiating effect Effects 0.000 claims abstract description 19
- 238000003384 imaging method Methods 0.000 claims description 24
- 230000007704 transition Effects 0.000 claims description 19
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- 238000004364 calculation method Methods 0.000 claims description 6
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- 238000005286 illumination Methods 0.000 claims description 3
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- 229910000831 Steel Inorganic materials 0.000 description 3
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- 238000004140 cleaning Methods 0.000 description 2
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- 239000003110 molding sand Substances 0.000 description 2
- QDZOEBFLNHCSSF-PFFBOGFISA-N (2S)-2-[[(2R)-2-[[(2S)-1-[(2S)-6-amino-2-[[(2S)-1-[(2R)-2-amino-5-carbamimidamidopentanoyl]pyrrolidine-2-carbonyl]amino]hexanoyl]pyrrolidine-2-carbonyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-N-[(2R)-1-[[(2S)-1-[[(2R)-1-[[(2S)-1-[[(2S)-1-amino-4-methyl-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]pentanediamide Chemical compound C([C@@H](C(=O)N[C@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(N)=O)NC(=O)[C@@H](CC=1C2=CC=CC=C2NC=1)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@@H](CC=1C2=CC=CC=C2NC=1)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](CCCCN)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](N)CCCNC(N)=N)C1=CC=CC=C1 QDZOEBFLNHCSSF-PFFBOGFISA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a detecting device for the surplus in a casting case of an aeroengine, which is used for conveying parts in a loading and unloading manner through a conveying assembly; the rotating component drives the part to rotate; illuminating the remainder of the part through the camera assembly to generate a projected image; driving the irradiating assembly through the adjusting assembly so that the irradiating assembly irradiates the part from a plurality of angles; generating space coordinates of the surplus in the part through the control assembly; marking the redundant materials in the part through the marking assembly; according to the scheme, through the cooperation of the conveying component, the rotating component, the irradiation component, the adjusting component and the control component, the detection of the residues in the part to be detected is rapidly completed, the detection efficiency is high, manual intervention in the detection process is less, the detection precision is high, the residues in the detected part are rapidly completed through the cooperation of the conveying component, the control component and the labeling component, the residues in the subsequent part are conveniently removed, and the removal efficiency is high.
Description
Technical Field
The invention relates to the technical field of aero-engine detection, in particular to a device for detecting redundancy in an aero-engine casting case. In addition, the invention also relates to a method for detecting the surplus in the casting case of the aeroengine by adopting the device for detecting the surplus in the casting case of the aeroengine.
Background
The aeroengine casing is an important component for supporting the stator system and the rotor system of the aeroengine and is a base of the whole aeroengine. Meanwhile, the casing also plays a role in transmitting thrust generated by the engine to the aircraft, is a main bearing component of the aeroengine, and plays a role in the design, research and development and safe operation of the whole aeroengine.
The engine case is generally cast by an investment method because the engine case is various in appearance and complex in structure due to the influence of differences of the type of the aeroengine, the function of the engine case, the working environment of the engine case, the working position and the like. However, due to the complicated structure of the casing cavity and the poor fluidity of the molding sand, the molding sand cannot be completely melted after casting the casing and flows out of the cavity, and a residual surplus material is formed in the cavity. And in the casting process, a part of surplus matters such as a sharp edge, burrs and the like are formed in the casing cavity. In the process of pouring the steel balls after casting and polishing the steel balls, the situation that the steel balls cannot be completely poured out easily occurs due to the complex internal structure of the case, so that surplus materials are formed. If the redundant objects are not detected in time, the air flow in the casing is possibly influenced when the engine blades rotate at a high speed, and even the redundant objects can be thrown into the engine rotor when the engine works, so that serious threat is caused to the safe operation of the engine, and therefore, the space positions of the redundant objects in the casting casing of the aeroengine are often required to be detected, so that the redundant objects can be conveniently and quickly taken out in time.
The existing device and method for detecting the residues in the casting case of the aeroengine usually adopts a film photographic method, but the film photographic method often has the following problems in the actual use process: 1. because the film photographic process needs to be frequently pasted with films, the operation process is complex, in order to ensure the definition and resolution of the pictures, each angle can only be pasted with one picture for shooting, and the next picture is shot after the films are washed out, the workload is large and most of the films are mechanically repeated, so that the detection efficiency is extremely low, and the shooting period is long; 2. when the film is photographed and imaged by the film photographic method, the obtained film is projected on the film by taking the X-ray tube head as a point light source to irradiate an object to be measured, and the depth information of the redundant substance is ignored in the projection process, so that the spatial position of the redundant substance cannot be accurately positioned, the detection accuracy is low, and the cleaning efficiency of the redundant substance is low.
Disclosure of Invention
The invention provides a device and a method for detecting the surplus in an aero-engine casting casing, which are used for solving the technical problems of low detection efficiency, low detection accuracy and low cleaning efficiency of the existing device and method for detecting the surplus in the aero-engine casting casing.
According to one aspect of the invention, a detection device for the surplus in the casting case of the aeroengine is provided, and the detection device comprises a conveying component for feeding and discharging the part, a rotating component which is arranged on the conveying component and used for driving the surplus in the part to rotate by driving the part to rotate, an irradiation component which is used for irradiating the surplus in the part to generate a projection image, an adjusting component which is connected with the irradiation component and used for driving the irradiation component to move so as to enable the irradiation component to irradiate the part from a plurality of angles, a control component which is connected with the irradiation component and used for receiving the projection image of the surplus in the part and generating the space coordinates of the surplus in the part according to the projection images of the surplus in the part, and a marking component which is connected with the control component and used for receiving the space coordinates of the surplus in the part and marking the surplus in the part according to the space coordinates of the surplus in the part.
Further, the conveying assembly comprises a belt conveying part for conveying the parts through belt transmission and a bearing part movably arranged on the belt conveying part and used for bearing the parts, the belt conveying part is sequentially provided with a loading and unloading section for loading and unloading the parts, a transition section for conveying the parts and a detection section for detecting the residues in the parts, an openable or closable front door is arranged between the loading and unloading section and the transition section, and an openable or closable rear door is arranged between the transition section and the detection section.
Further, one end of the detection section, which is far away from the transition section, is provided with an electromagnetic suction piece for sucking and fixing the bearing piece through the electromagnetic.
Further, the rotating assembly comprises a transmission piece which is arranged on the bearing piece and used for driving the part to rotate, and a rotating piece which is arranged on the transition section and used for driving the transmission piece to rotate.
Further, the marking assembly comprises a rotating piece which is arranged on the upper and lower material feeding sections and used for driving the transmission piece to rotate, a vertical laser which is used for marking the horizontal position of the surplus in the part and emitting rays along the vertical direction, and a horizontal laser which is used for marking the vertical position of the surplus in the part and emitting rays along the horizontal direction.
Further, the irradiation assembly comprises an irradiation part for irradiating the surplus in the part, a projection part for generating a projection image and a connecting part respectively connected with the irradiation part, the projection part and the adjusting assembly, wherein the irradiation part and the projection part are respectively arranged at two opposite ends of the part so as to irradiate the surplus in the part and generate the projection image.
Further, the adjusting component comprises a robot arm connected with the connecting piece and used for driving the connecting piece to rotate and move, and a supporting seat connected with the robot arm and used for supporting the robot arm.
Further, the detection device also comprises a working room, a power supply piece which is arranged at the top of the working room and is used for transmitting power, and a temperature regulating piece which is arranged at the top of the working room and is used for regulating the temperature in the working room.
According to another aspect of the present invention, there is also provided a method for detecting a surplus in an aircraft engine casting case, which adopts the above device for detecting a surplus in an aircraft engine casting case, comprising the steps of: a. arranging the part to be detected on a conveying assembly in a reference posture, and conveying the part to be detected into a detection area through the conveying assembly; b. the rotating component is cooperatively matched with the adjusting component, so that the irradiation component irradiates and projects the redundant materials in the part in a plurality of areas, a plurality of angles and a plurality of magnification ratios; c. the control assembly receives projection imaging of the redundancy in the part and collects redundant position data, and then an improved parallax method is used for generating space coordinates of the redundancy in the part and transmitting the space coordinates to the labeling assembly; d. and conveying the measured part into a marking assembly through a conveying assembly, and marking the specific position of the redundancy in the part by the marking assembly according to the space coordinate of the redundancy in the part and receiving the space coordinate of the redundancy in the part.
Further, the redundant object position data includes horizontal distances from the redundant object image to the vertical center line of the imaging end of the irradiation assembly in different areas, different angles and different magnification ratios, and the improved parallax method is as follows: and establishing a column coordinate system by taking the rotation center of the part as an origin, obtaining the polar angle and the polar diameter of the surplus relative to the origin through calculation according to the distance from the irradiation end of the irradiation assembly to the origin, the distance from the irradiation end of the photographing assembly to the imaging end, the rotation angle of the rotation assembly and the horizontal distance from the surplus image to the vertical center line of the imaging end of the irradiation assembly under a plurality of angles, and obtaining the vertical coordinate of the surplus relative to the origin through calculation according to the vertical distance from the surplus image to the horizontal center line of the imaging end of the irradiation assembly, thereby obtaining the space coordinate of the surplus relative to the origin in the part, wherein the space coordinate consists of the polar angle, the polar diameter and the vertical coordinate.
The invention has the following beneficial effects:
According to the detecting device for the surplus in the casting case of the aeroengine, provided by the invention, the conveying assembly is used for conveying the parts in a loading and unloading manner, so that manual conveying is not needed, the conveying efficiency of the parts is high, the parts can be detected rapidly, and the detecting efficiency is improved; the rotating assembly drives the part to rotate, so that the surplus in the part is driven to rotate, the irradiation imaging of different rotating areas of the surplus in the part is facilitated, the rotating angle of the rotating assembly is the rotating angle of the surplus in the part, the reference is unchanged, the rotating angle value is reliable, and the detection precision is high; irradiating the surplus in the part through the photographing assembly to generate a projection image, namely indirectly calculating and obtaining the space coordinates of the surplus in the part according to the position data of the projection image; the adjusting component drives the irradiation component to irradiate the part from a plurality of angles so as to acquire images of the redundancy in the part under the plurality of angles, so as to provide data support for determining the space position of the redundancy in the part, namely, acquiring the position data of the redundancy in the part on the projection image, and driving the part to rotate by a fixed angle so as to acquire the position data of the redundancy in the part on the projection image under the fixed angle; the control component is used for receiving the projection images of the redundancy in the part and automatically generating the space coordinates of the redundancy in the part according to the projection images of the redundancy in the part at a plurality of angles, so that the detection efficiency is high, the manual intervention in the whole detection process is less, and the detection precision is high; the marking assembly is used for receiving the space coordinates of the surplus materials in the part and marking the surplus materials in the part according to the space coordinates of the surplus materials in the part so as to ensure that the surplus materials in the part are completely removed; according to the scheme, through the cooperation of the conveying component, the rotating component, the irradiation component, the adjusting component and the control component, the detection of the residues in the part to be detected is rapidly completed, the detection efficiency is high, manual intervention in the detection process is less, the detection precision is high, the residues in the detected part are rapidly completed through the cooperation of the conveying component, the control component and the labeling component, the residues in the subsequent part are conveniently removed, and the removal efficiency is high.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic structural view of a device for detecting redundancy in an aircraft engine casting case according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a device for detecting redundancy in an aircraft engine casting case according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural view of a device for detecting the residue in the casting case of an aero-engine according to a preferred embodiment of the present invention.
Legend description:
1. A transport assembly; 11. a belt conveyor; 111. feeding and discharging sections; 112. a transition section; 113. a detection section; 12. a carrier; 2. a rotating assembly; 3. an illumination assembly; 4. an adjustment assembly; 5. a control assembly; 6. a marking assembly; 7. a working room.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
FIG. 1 is a schematic structural view of a device for detecting redundancy in an aircraft engine casting case according to a preferred embodiment of the present invention; FIG. 2 is a schematic structural view of a device for detecting redundancy in an aircraft engine casting case according to a preferred embodiment of the present invention; fig. 3 is a schematic structural view of a device for detecting the residue in the casting case of an aero-engine according to a preferred embodiment of the present invention.
As shown in fig. 1 to 3, the device for detecting the surplus in the casting case of the aeroengine of the present embodiment includes a conveying component 1 for feeding and discharging the part, a rotating component 2 mounted on the conveying component 1 for rotating the surplus in the part by driving the part to rotate, an irradiating component 3 for irradiating the surplus in the part to generate a projection image, an adjusting component 4 connected to the irradiating component 3 for driving the irradiating component 3 to move so that the irradiating component 3 irradiates the part from a plurality of angles, a control component 5 connected to the irradiating component 3 for receiving the projection image of the surplus in the part and generating a space coordinate of the surplus in the part according to the projection image of the surplus in the part, and a marking component 6 connected to the control component 5 for receiving the space coordinate of the surplus in the part and marking the surplus in the part according to the space coordinate of the surplus in the part. Specifically, according to the detecting device for the surplus in the casting case of the aeroengine, the conveying assembly 1 is used for conveying the parts in a loading and unloading mode, manual conveying is not needed, the conveying efficiency of the parts is high, the parts can be detected rapidly, and the detecting efficiency is improved; the rotating assembly 2 drives the part to rotate, so that the surplus in the part is driven to rotate, the irradiation imaging of different rotating areas of the surplus in the part is facilitated, the rotating angle of the rotating assembly 2 is the rotating angle of the surplus in the part, the reference is unchanged, the rotating angle value is reliable, and the detection precision is high; irradiating the surplus in the part through the photographing assembly to generate a projection image, namely indirectly calculating and obtaining the space coordinates of the surplus in the part according to the position data of the projection image; the adjusting component 4 drives the irradiation component 3 to enable the irradiation component 3 to irradiate the part from a plurality of angles so as to acquire images of the redundancy in the part under the plurality of angles, so as to provide data support for determining the space position of the redundancy in the part, namely, acquiring the position data of the redundancy in the part on the projection image, and driving the part to rotate by a fixed angle so as to acquire the position data of the redundancy in the part under the fixed angle on the projection image; the control component 5 receives the projection images of the surplus in the part and automatically generates the space coordinates of the surplus in the part according to the projection images of the surplus in the part at a plurality of angles, so that the detection efficiency is high, the manual intervention in the whole detection process is less, and the detection precision is high; the marking assembly is used for receiving the space coordinates of the surplus materials in the part and marking the surplus materials in the part according to the space coordinates of the surplus materials in the part so as to ensure that the surplus materials in the part are completely removed; according to the scheme, through the cooperative matching of the conveying component 1, the rotating component 2, the irradiation component 3, the adjusting component 4 and the control component 5, the detection of the redundancy in the part to be detected is completed quickly, the detection efficiency is high, the manual intervention in the detection process is less, the detection precision is high, the labeling of the redundancy in the detected part is completed quickly through the cooperative matching of the conveying component 1, the control component 5 and the labeling component, the removal of the redundancy in the subsequent part is facilitated, and the removal efficiency is high.
As shown in fig. 2 and 3, in this embodiment, the conveying assembly 1 includes a belt conveying member 11 for conveying parts by belt transmission and a carrying member 12 movably mounted on the belt conveying member 11 for carrying the parts, the belt conveying member 11 is sequentially provided with an loading and unloading section 111 for loading and unloading the parts, a transition section 112 for conveying the parts and a detection section 113 for detecting the excessive parts in the parts, an openable or closable front door is provided between the loading and unloading section 111 and the transition section 112, and an openable or closable rear door is provided between the transition section 112 and the detection section 113. Specifically, when the carrier 12 is located in the feeding and discharging section 111, the parts are mounted on the carrier 12, then the front door is opened, the carrier 12 is conveyed into the transition section 112 through belt transmission, after preparation for detection is made, the rear door is opened, the carrier 12 is conveyed into the detection section 113 through belt transmission, and then the rear door is closed, so that inaccurate detection results caused by slipping of the carrier 12 during detection of the parts are avoided.
As shown in fig. 2 and 3, in the present embodiment, an end of the detecting section 113 away from the transition section 112 is provided with an electromagnetic absorber for electrically and magnetically absorbing the fixed carrier 12. Specifically, after the carrier 12 moves to the detection section 113, the electromagnetic attraction member is electrified to generate magnetic force so as to magnetically attract and fix the carrier 12, so that the connection is convenient, and the magnetic force of the electromagnetic attraction member can be controlled by voltage so as to ensure enough magnetic force and further ensure reliable connection.
As shown in fig. 2 and 3, in the present embodiment, the rotating assembly 2 includes a driving member disposed on the carrier 12 for driving the parts to rotate and a rotating member disposed on the transition section 112 for driving the driving member to rotate. Specifically, when the carrier 12 moves to the transition section 112, the rotating member and the driving member cooperate to sequentially drive the driving member and the parts mounted on the driving member to rotate when the rotating member rotates, so as to prepare for detecting the excessive materials in the parts. Optionally, the rotating member is engaged with the driving member gear after being energized.
As shown in fig. 2 and 3, in this embodiment, the marking assembly 6 includes a rotating member disposed on the feeding and discharging section 111 and used for driving the driving member to rotate, a vertical laser that emits rays vertically and used for marking the horizontal position of the surplus in the part, and a horizontal laser that emits rays horizontally and used for marking the vertical position of the surplus in the part. Specifically, after the measured part moves to the upper and lower material sections 111, the front door is closed, so that when the labeling component labels the surplus material in the part, the carrier 12 slips to cause inaccurate labeling results, the surplus material in the part is driven to rotate by the rotating component to determine the rotating position of the surplus material in the part, then the vertical laser emits rays vertically to label the horizontal position of the surplus material in the part, and the horizontal laser emits rays horizontally to label the vertical position of the surplus material in the part, so that the space position of the surplus material in the part is clearly obtained, and the surplus material in the subsequent part is convenient to clean.
As shown in fig. 2 and 3, in the present embodiment, the irradiation unit 3 includes an irradiation member for irradiating the surplus in the part, a projection member for generating a projection image, and connection members respectively connected to the irradiation member, the projection member, and the adjustment unit 4, and the irradiation member and the projection member are respectively disposed at opposite ends of the part to irradiate the surplus in the part and generate the projection image. Specifically, the irradiation part irradiates the surplus in the part, then a projection image is generated on the projection part, and the position data on the projection image can be acquired, so that the space coordinates of the surplus in the part can be obtained according to the position data of the projection image.
As shown in fig. 2 and 3, in the present embodiment, the adjusting assembly 4 includes a robot arm connected to the connecting member for driving the connecting member to rotate and move, and a support base connected to the robot arm for supporting the robot arm. Specifically, the robot arm is supported by the supporting seat, and the connecting piece is driven by the robot arm to rotate and move so as to complete projection imaging of redundant materials in the part at different angles.
As shown in fig. 1, in this embodiment, the detection device further includes a working room 7, a power supply member disposed at the top of the working room 7 for delivering power, and a temperature adjusting member disposed at the top of the working room 7 for adjusting the temperature in the working room 7. Specifically, the power supply piece and the temperature regulating piece are arranged at the top of the working room 7, so that the space advantage of the installation site is reasonably utilized, the occupied area of the device can be effectively reduced, the part transferring space is increased, the site pipeline is convenient, the safety of the high-voltage connecting joint is protected, and the artificial damage is avoided. Optionally, the detection section 113, the transition section 112 and the adjustment assembly 4 are arranged within the working room 7.
As shown in fig. 2 and 3, the method for detecting the surplus in the casting case of the aero-engine according to the embodiment adopts the device for detecting the surplus in the casting case of the aero-engine, and includes the following steps: a. arranging the part to be detected on the conveying assembly 1 in a reference posture, and conveying the part to be detected into a detection area through the conveying assembly 1; b. the rotating component 2 is cooperatively matched with the adjusting component 4, so that the irradiation component 3 irradiates and projectively images the redundant materials in the part in a plurality of areas, a plurality of angles and a plurality of magnification ratios; c. the control assembly 5 receives projection imaging of the redundancy in the part and collects redundant position data, and then a modified parallax method is used for generating space coordinates of the redundancy in the part and transmitting the space coordinates to the labeling assembly; d. the measured part is conveyed into the marking assembly through the conveying assembly 1, and the marking assembly receives the space coordinates of the redundancy in the part and marks the specific positions of the redundancy in the part according to the space coordinates of the redundancy in the part. Specifically, through the cooperation of the conveying component 1, the rotating component 2, the adjusting component 4 and the control component 5, irradiation and projection imaging of a plurality of areas, a plurality of angles and a plurality of amplification ratios of the redundant materials in the part are completed, so that redundant material position data are adopted, then the space coordinates of the redundant materials in the part can be obtained by adopting an improved parallax method, and then the labeling of the redundant materials in the part can be completed through the cooperation of the conveying component 1, the labeling component and the control component 5.
As shown in fig. 2 and 3, in the present embodiment, the redundant position data includes horizontal distances from the redundant image to the vertical center line of the imaging end of the illumination assembly 3 in different areas, different angles and different magnification ratios, and the improved parallax method is as follows: and establishing a column coordinate system by taking the rotation center of the part as an origin, obtaining the polar angle and the polar diameter of the surplus relative to the origin through calculation according to the distance from the irradiation end of the irradiation assembly 3 to the origin, the distance from the irradiation end of the photographing assembly to the imaging end, the rotation angle of the rotation assembly 2 and the horizontal distance from the surplus image to the vertical center line of the imaging end of the irradiation assembly 3 under a plurality of angles, and obtaining the vertical coordinate of the surplus relative to the origin through calculation according to the vertical distance from the surplus image to the horizontal center line of the imaging end of the irradiation assembly 3, thereby obtaining the space coordinate of the surplus relative to the origin in the part, wherein the space coordinate consists of the polar angle, the polar diameter and the vertical coordinate. Specifically, the distance L from the irradiation end to the imaging end, the distance L1 from the irradiation end to the origin, the distance L2 from the imaging end to the origin, and the displacement S of the projection image Q of the surplus P from the vertical center line of the imaging end are determined in advance by measurement, and then the relationship between the polar diameter ρ and the polar angle θ is obtained by deduction according to the principle of similar triangles: ρ=l1/(L/s×sinθ -cos θ) (1), then, according to the angle β of the part rotation, and the displacement S1 of the projection image Q of the redundancy P from the vertical center line of the imaging end at this angle, we get: ρ=l1/(L/s1×sin (θ+β) -cos (θ+β)), obtained by derivation according to the principle of the pole diameter invariance: the cotθ= (L/S-L/S1 cos β -sin β)/(1+l/S1 sin β -cos β) (2), and then the polar angle θ and the polar diameter ρ are obtained according to formulas (2) and (1); then, the height of the central ray beam is Z0, the distance between the projection image Q of the redundant substance P and the horizontal center line of the imaging end is Z1, and then the vertical coordinate Z of the redundant substance is determined according to z=z0- (L1+ρ)/LxZ 1 (3), so that the space coordinate P (ρ, θ, Z) of the redundant substance is obtained.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The detecting device for the surplus in the casting case of the aeroengine is characterized by comprising a conveying component (1) for feeding and discharging the part, a rotating component (2) arranged on the conveying component (1) and used for driving the surplus in the part to rotate by driving the part to rotate, an irradiating component (3) used for irradiating the surplus in the part to generate a projection image, an adjusting component (4) connected with the irradiating component (3) and used for driving the irradiating component (3) to move so as to irradiate the part from multiple angles, a control component (5) connected with the irradiating component (3) and used for receiving the projection image of the surplus in the part and generating the space coordinates of the surplus in the part according to the projection image of the surplus in the part, and a marking component (6) connected with the control component (5) and used for receiving the space coordinates of the surplus in the part and marking the surplus in the part according to the space coordinates of the surplus in the part;
The conveying assembly (1) comprises a belt conveying part (11) for conveying parts through belt transmission and a bearing part (12) movably arranged on the belt conveying part (11) and used for bearing the parts, the belt conveying part (11) is sequentially provided with a feeding and discharging section (111) for feeding and discharging the parts, a transition section (112) for conveying and transitional the parts and a detection section (113) for detecting the surplus materials in the parts, an openable or closable front door is arranged between the feeding and discharging section (111) and the transition section (112), and an openable or closable rear door is arranged between the transition section (112) and the detection section (113);
an electromagnetic suction piece for connecting the electromagnetic suction fixed bearing piece (12) is arranged at one end of the detection section (113) far away from the transition section (112);
The rotating assembly (2) comprises a transmission piece which is arranged on the bearing piece (12) and used for driving the parts to rotate, and a rotating piece which is arranged on the transition section (112) and used for driving the transmission piece to rotate.
2. The device for detecting the surplus in the casting case of the aeroengine according to claim 1, wherein the marking assembly (6) comprises a rotating part which is arranged on the upper and lower material feeding sections (111) and used for driving the transmission part to rotate, a vertical laser which vertically emits rays and is used for marking the horizontal position of the surplus in the part, and a horizontal laser which horizontally emits rays and is used for marking the vertical position of the surplus in the part.
3. The device for detecting the surplus in the casting case of the aeroengine according to claim 1, wherein the irradiation assembly (3) comprises an irradiation member for irradiating the surplus in the part, a projection member for generating a projection image, and connecting members respectively connected with the irradiation member, the projection member, and the adjustment assembly (4), and the irradiation member and the projection member are respectively arranged at opposite ends of the part to irradiate the surplus in the part and generate the projection image.
4. A device for detecting the surplus in the casing of an aircraft engine according to claim 3, characterized in that the adjustment assembly (4) comprises a robot arm connected to the connecting piece for driving the connecting piece to rotate and move and a support seat connected to the robot arm for supporting the robot arm.
5. The device for detecting the surplus in the casting case of the aeroengine according to any one of claims 1 to 4, further comprising a working room (7), a power supply member arranged on the top of the working room (7) for transmitting electric power, and a temperature adjusting member arranged on the top of the working room (7) for adjusting the temperature in the working room (7).
6. A method for detecting the surplus in the casting case of an aeroengine, characterized in that the device for detecting the surplus in the casting case of the aeroengine according to any one of claims 1 to 5 is adopted, comprising the following steps:
a. Arranging a part to be detected on a conveying assembly (1) in a reference posture, and conveying the part to be detected into a detection area through the conveying assembly (1);
b. the rotating component (2) is cooperatively matched with the adjusting component (4) so that the irradiation component (3) irradiates and projectively images the redundant substances in the part in a plurality of areas, a plurality of angles and a plurality of magnification ratios;
c. the control assembly (5) receives projection imaging of the redundancy in the part and collects redundant position data, and then uses an improved parallax method to generate space coordinates of the redundancy in the part and transmits the space coordinates to the marking assembly;
d. The measured part is conveyed into the marking assembly through the conveying assembly (1), and the marking assembly receives the space coordinates of the surplus in the part and marks the specific positions of the surplus in the part according to the space coordinates of the surplus in the part.
7. The method for detecting redundancy in an aircraft engine casting case according to claim 6, wherein the redundancy position data includes horizontal distances from the redundancy image to a vertical center line of an imaging end of the illumination assembly (3) in different areas, at different angles and at different magnification ratios, and the improved parallax method is as follows: and establishing a column coordinate system by taking the rotation center of the part as an origin, obtaining the polar angle and the polar diameter of the surplus relative to the origin through calculation according to the distance from the irradiation end of the irradiation assembly (3) to the origin, the distance from the irradiation end of the photographing assembly to the imaging end, the rotation angle of the rotating assembly (2) and the horizontal distance from the surplus image to the vertical center line of the imaging end of the irradiation assembly (3) under a plurality of angles, and obtaining the vertical coordinate of the surplus relative to the origin through calculation according to the vertical distance from the surplus image to the horizontal center line of the imaging end of the irradiation assembly (3), thereby obtaining the space coordinate of the surplus relative to the origin in the part, wherein the space coordinate consists of the polar angle, the polar diameter and the vertical coordinate.
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