CN114888429A - Device for laser processing of engine flame tube air film hole based on five-axis numerical control machine tool - Google Patents
Device for laser processing of engine flame tube air film hole based on five-axis numerical control machine tool Download PDFInfo
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- CN114888429A CN114888429A CN202210653148.XA CN202210653148A CN114888429A CN 114888429 A CN114888429 A CN 114888429A CN 202210653148 A CN202210653148 A CN 202210653148A CN 114888429 A CN114888429 A CN 114888429A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
Abstract
The invention discloses a device for processing an engine flame tube gas film hole based on a five-axis numerical control machine tool by laser, which combines a tool rest on the numerical control machine tool along X, Y and Z running directions and a workbench on a numerical control cradle, which rotates around a Z axis and rotates around an X axis or a Y axis, into a five-axis machine tool, and combines a first numerical control device of the numerical control machine tool and a second numerical control device of the numerical control cradle with a computer to form the five-axis numerical control machine tool. The invention adopts a laser cutting system and a coaxial imaging system to form a set of gas film hole laser processing and hole pattern detection system linked with a five-axis numerical control machine tool. The advantages of high-precision operation of the numerical control machine tool, high power and high repetition frequency of laser processing are fully exerted through the matching of the five-axis numerical control machine tool and the laser processing, and the processing efficiency and the processing quality of the air film hole are effectively improved.
Description
Technical Field
The invention relates to the technical field of numerical control and laser, in particular to a device for machining an engine flame tube air film hole based on a five-axis numerical control machine tool by applying a laser technology.
Background
The aircraft engine is characterized in that high-temperature and high-pressure gas in a combustion chamber pushes blades to rotate at a high speed to generate huge power, the most main high-temperature part of the combustion chamber is a flame tube, and under the action of high-temperature and high-pressure combustion flame and hot gas, the flame tube bears high-strength heat load, thermal shock load and mechanical vibration load, so that the flame tube can be damaged by cracks, warping, denaturation and the like, and even faults such as thermal barrier coating chipping, abrasion, burnthrough and the like can occur. High temperature components have been the focus of research in aircraft engines. In order to ensure that the flame tube stably and continuously works in an extremely high-temperature environment, the flame tube needs to be cooled.
At present, the technology for improving the temperature resistance of the flame tube mainly and comprehensively adopts a wall surface cooling technology, a thermal barrier coating technology and a high-temperature resistant material technology. As for the high temperature resistant material technology, various types of iron-based, nickel-based, cobalt-based, metal-based compounds, metal-based composite materials (MMC), ceramic-based Composite Materials (CMC), and the like have been developed from early stainless steels; for the thermal barrier coating technology, a coating is coated on a flame tube alloy material and is combined with a gas film cooling mode; for the wall surface cooling technology, the high temperature resistance of the blade is improved by adopting a gas film hole cooling mode on the wall surface design of the flame tube, namely, a plurality of exhaust film holes are formed in the wall surface of the flame tube, cooling air enters the flame tube in a set air inlet mode and flows along the wall surface, and a continuous cold gas film with lower temperature is formed between the inner wall surface and hot gas, so that the heat insulation and cooling effects are realized. In the prior art, a technical scheme of combining a thermal barrier coating technology and a wall surface cooling technology is adopted to cool a flame tube. The processing of the film hole on the flame tube with the thermal barrier coating is not simple, and the problems exist that firstly, electric spark punching is adopted at present, namely, punching is firstly adopted and then the thermal barrier coating is coated, and the electric spark punching is limited by material properties, so that the novel non-conductive material is difficult to process; secondly, the defects of coating breakage and peeling are existed; thirdly, the defects of reduced aperture and irregular hole pattern caused by the deposition of coating materials due to the thickness of the recast layer of the hole wall exist. In order to process a flame tube film hole with higher quality, a device for processing an aircraft engine flame tube special-shaped film hole needs to be researched and developed urgently to meet the national important requirement.
Disclosure of Invention
The invention aims to provide a device for processing an engine flame tube air film hole based on a five-axis numerical control machine tool by applying a laser technology aiming at the defects of the prior art, and the device adopts the technical scheme that a numerical control machine tool provided with X, Y and a Z-axis rectangular coordinate system and a numerical control cradle provided with X, Y and a Z-axis rectangular coordinate system are arranged in the same rectangular coordinate system; and the first numerical control device of the numerical control machine tool, the second numerical control device of the numerical control cradle and the computer are jointly controlled to form the five-axis numerical control machine tool. The invention adopts a laser cutting system and a coaxial imaging system to form a set of gas film hole laser processing and hole pattern detection system linked with a five-axis numerical control machine tool. The laser in the laser cutting system is a high-power nanosecond laser, and by means of the high repetition frequency of the nanosecond laser and the high movement speed of the two-dimensional galvanometer, the advantages of high-power and high-repetition-frequency laser processing are fully exerted, and the processing efficiency and the processing quality of the gas film hole can be effectively improved; the invention overcomes the limitation of material property, eliminates the defects of coating breakage and peeling, ensures the precision of hole pattern, and meets the national important requirement for key equipment.
The specific technical scheme for realizing the purpose of the invention is as follows:
a device for processing an engine flame tube gas film hole based on a laser for a five-axis numerical control machine tool is characterized by comprising a numerical control machine tool, a numerical control cradle, a laser cutting system, a coaxial imaging system, a three-dimensional scanner, a computer and a flame tube;
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control machine tool, a base is arranged on the numerical control machine tool, a cross beam running along a Y axis is arranged on the base, a supporting plate running along an X axis is arranged on the cross beam, and a tool rest running along a Z axis is arranged on the supporting plate;
a first numerical control device is arranged in the numerical control machine; the base is also provided with a scanner seat;
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control cradle, a cradle seat is arranged on the numerical control cradle, a rotary table rotating around the Z axis is arranged on the cradle seat, and a workbench rotating around the X axis or the Y axis is arranged on the rotary table;
a second numerical control device is arranged in the numerical control cradle;
the cradle seat of the numerical control cradle is arranged on the base of the numerical control machine tool; the numerical control cradle and the numerical control machine are arranged in the same rectangular coordinate system;
the laser cutting system consists of a laser, a first reflector, a second reflector, a third reflector and a two-dimensional vibrating mirror, wherein the laser, the first reflector, the second reflector, the third reflector and the two-dimensional vibrating mirror are connected in sequence through optical paths;
the coaxial imaging system consists of a fourth reflector, a white light source and a CCD camera, and is arranged in the laser cutting system; the white light source penetrates through a second reflecting mirror of the laser cutting system and is reflected to the two-dimensional galvanometer through a third reflecting mirror, and the rotary cutting light beams of the white light source and the two-dimensional galvanometer are in a common path; the CCD camera is connected with a second reflector optical path of the laser cutting system through the reflection of a fourth reflector;
the three-dimensional scanner is arranged on a scanner seat of the base 11;
the computer is arranged on the outer side of the machine tool;
the computer is respectively connected with a first numerical control device in a numerical control machine tool, a second numerical control device in a numerical control cradle, a three-dimensional scanner, a laser in a laser cutting system and a CCD camera data line in a coaxial imaging system;
the laser cutting system and the coaxial imaging system are arranged on a tool rest of the numerical control machine.
The laser cutting system is characterized in that laser beams emitted by a laser sequentially pass through a first reflector, a second reflector and a third reflector and then enter a two-dimensional vibrating mirror, and the path of the laser beams is changed by the two-dimensional vibrating mirror to form rotary-cut light beams which are converged on a flame tube.
The coaxial imaging system is characterized in that white light emitted by a white light source passes through the second reflector, then is reflected to the two-dimensional vibrating mirror through the third reflector, is in a same path with a rotary-cut light beam of the two-dimensional vibrating mirror, is directly converged on a gas film hole of the flame tube, is reflected through the gas film hole, sequentially passes through the two-dimensional vibrating mirror, the third reflector and the second reflector to reach the fourth reflector, and is reflected to the CCD camera through the fourth reflector to be imaged.
The invention combines a tool rest on a numerical control machine tool along three running directions of X, Y and Z and a workbench on a numerical control cradle which rotates around a Z axis and rotates around two rotating directions of an X axis or a Y axis into a five-axis machine tool, and combines a first numerical control device of the numerical control machine tool and a second numerical control device of the numerical control cradle with a computer to form the five-axis numerical control machine tool.
The invention adopts a laser cutting system and a coaxial imaging system to form a set of gas film hole laser processing and hole pattern detection system linked with a five-axis numerical control machine tool. The invention overcomes the limitation of material property, eliminates the defects of coating breakage and peeling, ensures the precision of hole pattern, and meets the national important requirement for key equipment.
Compared with the prior art, the invention has the following beneficial technical effects and advantages:
1) the invention adopts a tool rest along X, Y and Z operation directions on a numerical control machine tool 1 and a workbench on a numerical control cradle which rotates around a Z axis and rotates around an X axis or a Y axis to combine into a five-axis machine tool, and makes full use of the networking of a first numerical control device and a second numerical control device with a computer 6 to form the five-axis numerical control machine tool.
2) The numerical control machine tool can rapidly and accurately position the posture of each gas film hole to be processed one by one in the processing process, and the cutter frame drives the laser cutting system and the coaxial imaging system to move on the Z axis to obtain the optimal distance between the rotary cutting light beam formed by the two-dimensional galvanometer and the gas film hole to be processed, so that the filling type and rotary cutting type processing of different types of gas film holes can be conveniently realized by utilizing the high-speed and accurate motion characteristic of the two-dimensional galvanometer; the two-dimensional galvanometer can be processed at high precision while moving at high speed, so that the cracking and stripping of a thermal barrier coating caused by a pulse accumulative thermal effect can be reduced, the regularity of a hole pattern is greatly improved, a recast layer and microcracks are reduced, and the processing quality of a gas film hole is improved.
3) The central shaft of each air film hole is vertically arranged below the rotary cutting light beam formed by the two-dimensional galvanometer in the processing process of each air film hole, and the influence of the shot of the ablated substances on the hole pattern in the laser processing process is very small in the arrangement mode, so that the processing mode has obvious advantages and overcomes the defect that the shot substances cause the asymmetrical processing of the hole pattern due to the non-vertical arrangement of the existing central shaft.
4) By means of the high repetition frequency laser and the high-speed motion of the two-dimensional galvanometer, the advantages of high power, high speed and high repetition frequency laser processing of the gas film hole can be more fully exerted.
5) The coaxial imaging system can image and measure the position information and the size information of each air film hole, the measured information is fed back to the computer to be interacted with the first numerical control device arranged in the numerical control machine tool and the second numerical control device arranged in the numerical control cradle in real time, if deviation exists, secondary processing and correction can be conveniently carried out on the air film hole, and the processing efficiency of the air film hole is greatly improved.
6) The flame tube and the special fixture are arranged on the workbench of the numerical control cradle, the three-dimensional scanner is adopted to carry out 3D modeling on the flame tube, the problem of accurate positioning of the space of the flame tube is solved, and the punching accuracy and efficiency are improved. And the method can be expanded to 3D modeling and laser processing of other complex workpieces.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a laser cutting system and a coaxial imaging system according to the present invention;
FIG. 3 is a schematic diagram of the optical path of the laser cutting system and the coaxial imaging system of the present invention.
Detailed Description
Referring to fig. 1, the invention comprises a numerical control machine 1, a numerical control cradle 2, a laser cutting system 3, a coaxial imaging system 4, a three-dimensional scanner 5, a computer 6 and a flame tube 7;
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control machine tool 1, a base 11 is arranged on the numerical control machine tool 1, a cross beam 12 running along a Y axis is arranged on the base 11, a supporting plate 13 running along an X axis is arranged on the cross beam 12, and a tool rest 14 running along a Z axis is arranged on the supporting plate 13;
a first numerical control device is arranged in the numerical control machine 1; the base 11 is also provided with a scanner seat;
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control cradle 2, a cradle seat 21 is arranged on the numerical control cradle 2, a rotary table 22 rotating around the Z axis is arranged on the cradle seat 21, and a workbench 23 rotating around the X axis or the Y axis is arranged on the rotary table 22;
a second numerical control device is arranged in the numerical control cradle 2;
the cradle seat 21 of the numerical control cradle 2 is arranged on the base 11 of the numerical control machine 1; and the numerical control cradle 2 and the numerical control machine 1 are arranged in the same rectangular coordinate system.
Referring to fig. 1, 2, and 3, the laser cutting system 3 is composed of a laser 31, a first reflector 32, a second reflector 33, a third reflector 34, and a two-dimensional vibrating mirror 35, and the laser 31, the first reflector 32, the second reflector 33, the third reflector 34, and the two-dimensional vibrating mirror 35 are sequentially connected by an optical path;
the coaxial imaging system 4 consists of a fourth reflector 37, a white light source 38 and a CCD camera 39, and the coaxial imaging system 4 is arranged in the laser cutting system 3; the white light source 38 passes through the second reflecting mirror 33 of the laser cutting system 3 and is reflected to the two-dimensional galvanometer 35 by the third reflecting mirror 34, and the rotary-cut light beams of the white light source 38 and the two-dimensional galvanometer 35 are in a common path; the CCD camera 39 is in optical connection with the second reflector 33 of the laser cutting system 3 through reflection of the fourth reflector 37;
the three-dimensional scanner 5 is arranged on a scanner seat of the base 11;
the computer 6 is arranged on the outer side of the machine tool 1;
the computer 6 is respectively connected with a first numerical control device in the numerical control machine 1, a second numerical control device in the numerical control cradle 2, the three-dimensional scanner 5, the laser 31 in the laser cutting system 3 and the CCD camera 39 data line in the coaxial imaging system 4;
the laser cutting system 3 and the coaxial imaging system 4 are arranged on a tool rest 14 of the numerical control machine 1.
Referring to fig. 1, 2, and 3, in the laser cutting system 3, a laser beam emitted by a laser 31 sequentially passes through a first reflecting mirror 32, a second reflecting mirror 33, and a third reflecting mirror 34, enters a two-dimensional oscillating mirror 35, and a path of the laser beam is changed by the two-dimensional oscillating mirror 35 to form a rotary-cut beam which is converged on the flame tube 7.
Referring to fig. 1, 2, and 3, in the coaxial imaging system 4, after the white light emitted from the white light source 38 passes through the second reflecting mirror 33, the white light is reflected to the two-dimensional vibrating mirror 35 by the third reflecting mirror 34, and the white light and the lathe-cut light beam of the two-dimensional vibrating mirror 35 share a common path, and directly converge on the air film hole of the flame tube 7, and are reflected by the air film hole, sequentially pass through the two-dimensional vibrating mirror 35, the third reflecting mirror 34, and the second reflecting mirror 33 to reach the fourth reflecting mirror 37, and are reflected by the fourth reflecting mirror 37 to the CCD camera 39 for imaging.
Examples
The working process of the laser processing of the hole shape of the air film hole comprises the following steps:
extracting hole site coordinates of a plurality of air film holes on the flame tube 7 in a rectangular coordinate system from the UG model by the computer 6, and calibrating the hole site coordinates of the air film holes by (Xn, Yn and Zn), wherein n represents the serial number of the holes to obtain an accurate hole site point cloud group;
and 5, referring to fig. 1, controlling the laser 31 by the computer 6 to trigger the two-dimensional galvanometer 35 to emit laser beams to perform laser processing on the gas film hole according to the set laser parameters, controlling the tool rest 14 on the control supporting plate 13 to run along the Z axis by the computer 6, and controlling the feed amount of the laser beams to the gas film hole until the laser processing of the gas film hole shape is completed.
And 6, repeating the step 3, the step 4 and the step 5, and sequentially finishing the laser processing of the hole shape of the next air film hole.
The working process of the laser cutting system and the coaxial imaging system is as follows:
referring to fig. 1, 2, and 3, first, a laser beam emitted from a laser 31 of the laser cutting system 3 sequentially passes through a first reflecting mirror 32, a second reflecting mirror 33, and a third reflecting mirror 34, and then enters a two-dimensional oscillating mirror 35, and the two-dimensional oscillating mirror 35 changes a path of the laser beam to form a rotary-cut beam, and the rotary-cut beam is converged on a flame tube 7 to perform laser processing of a gas film hole.
Secondly, white light emitted by a white light source 38 of the coaxial imaging system 4 passes through the second reflecting mirror 33 and is reflected to the two-dimensional vibrating mirror 35 through the third reflecting mirror 34, and the white light and the rotary-cut light beam of the two-dimensional vibrating mirror 35 are in a common path and directly converged on the air film hole of the flame tube 7, at this time, the converged white light illuminates the air film hole being processed, is reflected by the air film hole, sequentially passes through the two-dimensional vibrating mirror 35 and the third reflecting mirror 34, penetrates through the second reflecting mirror 33 to reach the fourth reflecting mirror 37, and is reflected to the CCD camera 39 through the fourth reflecting mirror 37 for imaging, so that the coaxial imaging system 4 can observe the morphological information processed on the surface of the air film hole in real time and image the morphology of the air film hole.
Further, in order to ensure the processing precision, prevent the flame tube 7 from deforming and optimize the processing effect, the flame tubes 7 of different models need to be matched with respective special fixtures, and the special fixtures of the flame tubes need to be strictly matched with the models of the flame tubes 7.
Further, in order to configure the marking speed of the two-dimensional galvanometer 35 and the repetition frequency of the laser, the laser parameters are set in the computer 6, the laser parameters are processing programs of the two-dimensional galvanometer 35 according to the structure of each air film hole, and the two-dimensional galvanometer 35 can directly control the laser 31.
Further, laser parameters are uniformly led into a first numerical control device arranged in the numerical control machine 1 and a second numerical control device arranged in the numerical control cradle 2, the operation of a machining program of the two-dimensional vibrating mirror 35 is triggered and controlled through the machine tool position, and the laser machining of the air film holes is completed one by one in sequence.
Furthermore, high-speed filling type and rotary cutting type processing of different types of air film holes are realized through the two-dimensional vibrating mirror 35, so that the cracking and stripping of a thermal barrier coating caused by a pulse accumulative thermal effect can be effectively avoided, the regularity of the hole pattern is greatly improved, and a recast layer and microcracks are reduced.
Further, the gas film holes subjected to laser processing are photographed and analyzed by the coaxial imaging system 4, the CCD camera 39 of the coaxial imaging system 4 can image and measure the position information and the size information of each gas film hole, the measured information is fed back to the computer 6 to be interacted with the first numerical control device arranged in the numerical control machine 1 and the second numerical control device arranged in the numerical control cradle 2 in real time, if deviation exists, the computer 6 is used for finishing laser parameters, the laser parameters are led into the first numerical control device arranged in the numerical control machine 1 and the second numerical control device arranged in the numerical control cradle 2, and the gas film holes are processed again by matching the numerical control machine 1 and the numerical control cradle 2 with the laser 31 until the hole patterns meet the requirements.
Further, install flame tube 7 and special fixture behind numerical control cradle 2's workstation 23, carry out X, Y and Z axle rectangular coordinate system location and 3D fitting modeling to flame tube 7 through three-dimensional scanner 5, and flame tube 7, numerical control cradle 2 and numerical control machine 1 locate in the same rectangular coordinate system, three-dimensional scanner 5's use can carry out 3D modeling to flame tube 7 fast, the difficult problem of having solved the accurate location in flame tube 7 space has improved the accuracy and the efficiency of punching.
Claims (3)
1. A device for laser processing of an engine flame tube gas film hole based on a five-axis numerical control machine tool is characterized by comprising a numerical control machine tool (1), a numerical control cradle (2), a laser cutting system (3), a coaxial imaging system (4), a three-dimensional scanner (5), a computer (6) and a flame tube (7);
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control machine tool (1), a base (11) is arranged on the numerical control machine tool (1), a cross beam (12) which runs along a Y axis is arranged on the base (11), a supporting plate (13) which runs along an X axis is arranged on the cross beam (12), and a tool rest (14) which runs along a Z axis is arranged on the supporting plate (13);
a first numerical control device is arranged in the numerical control machine tool (1); the base (11) is also provided with a scanner seat;
x, Y and a Z-axis rectangular coordinate system are arranged on the numerical control cradle (2), a cradle seat (21) is arranged on the numerical control cradle (2), a rotary table (22) rotating around the Z axis is arranged on the cradle seat (21), and a workbench (23) rotating around the X axis or the Y axis is arranged on the rotary table (22);
a second numerical control device is arranged in the numerical control cradle (2);
the cradle seat (21) of the numerical control cradle (2) is arranged on the base (11) of the numerical control machine tool (1); the numerical control cradle (2) and the numerical control machine tool (1) are arranged in the same rectangular coordinate system;
the laser cutting system (3) is composed of a laser (31), a first reflector (32), a second reflector (33), a third reflector (34) and a two-dimensional vibrating mirror (35), and the laser (31), the first reflector (32), the second reflector (33), the third reflector (34) and the two-dimensional vibrating mirror (35) are connected in sequence through optical paths;
the coaxial imaging system (4) is composed of a fourth reflector (37), a white light source (38) and a CCD camera (39), and the coaxial imaging system (4) is arranged in the laser cutting system (3); the white light source (38) penetrates through a second reflecting mirror (33) of the laser cutting system (3) and is reflected to the two-dimensional galvanometer (35) through a third reflecting mirror (34), and the rotary cutting light beams of the white light source (38) and the two-dimensional galvanometer (35) are in a common path; the CCD camera (39) is reflected by a fourth reflector (37) and is connected with the optical path of a second reflector (33) of the laser cutting system (3);
the three-dimensional scanner (5) is arranged on a scanner seat of the base (11);
the computer (6) is arranged on the outer side of the machine tool (1);
the computer (6) is respectively connected with a first numerical control device in the numerical control machine tool (1), a second numerical control device in the numerical control cradle (2), the three-dimensional scanner (5), a laser (31) in the laser cutting system (3) and a CCD camera (39) data line in the coaxial imaging system (4);
the laser cutting system (3) and the coaxial imaging system (4) are arranged on a tool rest (14) of the numerical control machine tool (1).
2. The device according to claim 1, wherein the laser beam emitted by the laser (31) of the laser cutting system (3) sequentially passes through the first reflector (32), the second reflector (33) and the third reflector (34) and then enters the two-dimensional vibrating mirror (35), and the path of the laser beam is changed by the two-dimensional vibrating mirror (35) to form a rotary-cut beam which is converged on the flame tube (7).
3. The device according to claim 1, wherein the white light emitted by the white light source (38) of the coaxial imaging system (4) passes through the second reflector (33), and is reflected to the two-dimensional galvanometer (35) by the third reflector (34), and the white light and the rotary-cut light beam of the two-dimensional galvanometer (35) are in a common path, directly converged on the air film hole of the flame tube (7), reflected by the air film hole, sequentially passes through the two-dimensional galvanometer (35), the third reflector (34) and the second reflector (33), reaches the fourth reflector (37), and is reflected to the CCD camera (39) by the fourth reflector (37) for imaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210653148.XA CN114888429B (en) | 2022-06-10 | 2022-06-10 | Device for processing flame tube air film hole of engine based on five-axis numerical control machine tool |
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| CN202210653148.XA CN114888429B (en) | 2022-06-10 | 2022-06-10 | Device for processing flame tube air film hole of engine based on five-axis numerical control machine tool |
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| CN114888429A true CN114888429A (en) | 2022-08-12 |
| CN114888429B CN114888429B (en) | 2023-07-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115922043A (en) * | 2023-03-14 | 2023-04-07 | 西安成立航空制造有限公司 | Machining device and method for annular combustion chamber of aero-engine |
| CN117644277A (en) * | 2024-01-29 | 2024-03-05 | 广东原点智能技术有限公司 | PCD saw blade cutter machine tool |
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