Test limiting seat for aviation hot end part processing

Abstract

The invention discloses a test limiting seat for aviation hot end component processing, and belongs to the technical field of performance detection, the test limiting seat comprises an optical test bench arranged on a test bench and a limiting test piece combined with the optical test bench for use, and the optical test bench is provided with a plurality of optical test rail seats for the limiting test piece to move. The switching slide rail piece is detachably connected with the limiting test piece through a connecting column, and an active control piece for controlling the limiting test piece to move and a blade size detection device are arranged on the test bed. According to the invention, after the turbine blade is installed and fixed at one time, a plurality of detection processes such as geometric dimension measurement, optical scanning and heat dissipation hole smoke test can be automatically completed, and the tedious process of repeated disassembly, carrying and blade repositioning among different stations in the traditional method is eliminated; the system can automatically control the blades to horizontally move, rotate to a horizontal detection posture and simulate flapping, manual intervention is not needed, and the automation degree is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of performance detection, and particularly relates to a test limiting seat for processing of an aviation hot end component. BACKGROUND

[0002] The "hot end component" of an aviation engine refers to a core component exposed to a high-temperature gas flow in the engine, which works in an extremely harsh environment and bears extremely high temperature, great stress, oxidation and hot corrosion; The turbine blade is installed on the turbine disc, rotates at high speed with the turbine shaft, and converts the kinetic energy of the gas into mechanical energy after being impacted by the high-speed gas from the guide vane, to drive the front compressor and the rear fan to rotate, so that the manufacturing quality of the turbine blade seriously restricts the safety and reliability of the equipment. After being cast into shape, the turbine blade needs to be detected in multiple ways, including geometric size, optical scanning and nondestructive testing, etc. In this process, the angle and position of the turbine blade need to be adjusted multiple times, and frequent taking of the turbine blade can easily cause damage to the blade. In the process of testing, the size detection is too complex and scattered, and the turbine blade also needs to be detected for the internal heat dissipation hole during testing, which makes the whole detection process very cumbersome. Based on this, the present application provides a test limiting seat for processing of an aviation hot end component. SUMMARY

[0003] The present application aims at solving the problems in the prior art and provides a test limiting seat for processing of an aviation hot end component.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A test limiting seat for processing of an aviation hot end component, comprising an optical detection device, an optical test table arranged on a test table, and a limiting test piece used in combination with the optical test table, wherein the optical detection device comprises a support frame and an optical transfer track arranged on the support frame, an optical scanning camera is arranged on the optical transfer track, the test table and the optical test table are connected through an adaptive communication piece, a plurality of optical test track seats for moving the limiting test piece are arranged on the optical test table, a switching slide rail piece is arranged in the optical test track seat, the switching slide rail piece is detachably connected with the limiting test piece through a connecting column, and a driven control piece for controlling the movement of the limiting test piece and a blade size detection device are arranged on the test table. The limiting test piece comprises a limiting test base, an L-shaped mounting seat is arranged above the limiting test base, a limiting cylinder is connected to the L-shaped mounting seat through a transverse rotating shaft, an adaptive inspection opening for installing the turbine blade is formed in the limiting cylinder, a limiting threaded half ring is arranged on the limiting cylinder, and a blade root size detection device is arranged in the adaptive inspection opening.

[0005] As a preferred scheme, the adaptive connecting piece comprises an adaptive adapter provided on the test bench, a flue gas pipeline is arranged on the adaptive adapter, a matching adapter is arranged on the bottom of the optical test bench and is adapted to the adaptive adapter, and a flue gas interface is arranged on the optical test bench and is connected to the flue gas pipeline and penetrates through the bottom of the optical test rail seat.

[0006] As a preferred scheme, the bottom of the adaptive inspection opening is provided with a flue gas opening that penetrates through the L-shaped mounting seat and the limiting test base in sequence, and the switching sliding rail piece is provided with a communication opening that connects the flue gas opening and the flue gas interface.

[0007] As a preferred scheme, the switching sliding rail piece comprises an optical dynamic sliding seat arranged on the optical test rail seat, the connecting column is rotatably connected above the optical dynamic sliding seat, the connecting column is detachably connected with the limiting test base through threads, the connecting column is fixedly connected with an angle switching gear on the outer side wall, and the optical test rail seat is fixedly connected with a switching gear slot that is meshingly connected with the angle switching gear.

[0008] As a preferred scheme, the active control piece comprises an outer edge ring body arranged on the test bench, the outer edge ring body is provided with an active control push rod, and the active control push rod is provided with a magnetic disc that is magnetically attracted to the optical dynamic sliding seat.

[0009] As a preferred scheme, the vane size detection device comprises a distance measuring seat arranged on the outer edge ring body, distance measuring extrusion wheels are connected to the distance measuring seat through elastic sliding blocks on both sides, and a distance sensor for measuring the moving distance of the distance measuring extrusion wheels is arranged in the distance measuring seat.

[0010] As a preferred scheme, the transverse rotating shaft is rotatably arranged on the L-shaped mounting seat, and an angle adjusting gear is fixedly connected to the end portion, and an adjusting rack that is meshingly connected with the angle adjusting gear is fixedly connected to the side wall of the optical test rail seat.

[0011] As a preferred scheme, the blade root size detection device comprises a magnetic moving ruler movably arranged in the adaptive inspection opening, an electromagnetic seat that is magnetically repelled to the magnetic moving ruler is arranged at the end portion of the adaptive inspection opening, and a scale for detecting the moving distance of the magnetic moving ruler is arranged on the limiting cylinder.

[0012] Compared with the prior art, the present application has the following advantages: 1. The application realizes the automatic completion of geometric size measurement, optical scanning and smoke testing of the heat dissipation hole after the turbine blade is installed and fixed once, eliminates the cumbersome process of repeated disassembly, handling and repositioning of the blade in the traditional method, saves a lot of time, and through the synergistic effect of the active control push rod, gear-rack mechanism (angle adjustment gear and adjustment rack) and switching tooth groove structure, the system can automatically control the blade to move horizontally, rotate to a horizontal detection posture and simulate "fanning", without manual intervention, with high automation degree, and through the optical detection of the turbine blade by the optical scanning camera moving at any time, the image recognition detection of the turbine at multiple angles is ensured.

[0013] 2. The application guarantees the consistency of each angle switching and position movement through the mechanical positioning and transmission mechanism, improves the reliability and repeatability of the detection data, reduces the human operation error, maximizes the reduction of the number of human contact and taking in the detection process, and fundamentally avoids the secondary damage such as surface scratch and bump of the blade caused by frequent handling and clamping. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A perspective structural schematic view of a test limiting seat for processing of an aviation hot end component is provided in the application; Figure 2 A perspective structural schematic view of a test limiting seat for processing of an aviation hot end component is provided in the application; Figure 1 An enlarged structural schematic view of A in the middle; Figure 3 An assembly structural schematic view of a limiting test piece in the test limiting seat for processing of an aviation hot end component is provided in the application; Figure 4 A structural schematic view of a limiting test piece in the test limiting seat for processing of an aviation hot end component is provided in the application; Figure 5 A structural schematic view of a blade size detection device in the test limiting seat for processing of an aviation hot end component is provided in the application; Figure 6 A test state schematic view of a test limiting seat for processing of an aviation hot end component is provided in the application; Figure 1 ; Figure 7 A test state schematic view of a test limiting seat for processing of an aviation hot end component is provided in the application; Figure 2 ; Figure 8 A frame diagram of a test limiting seat for processing of an aviation hot end component is provided in the application.

[0015] In the figure: 1, test bench; 2, optical test bench; 3, optical test track base; 4, connecting column; 5, limit test base; 6, L-shaped mounting base; 7, transverse rotating shaft; 8, limit cylinder; 9, adaptive inspection port; 10, limit threaded half ring; 11, adaptive adapter seat; 12, flue gas pipeline; 13, flue gas port; 14, communication port; 15, optical dynamic slide; 16, angle switching gear; 17, switching gear slot; 18, outer ring body; 19, active control push rod; 20, distance measuring seat; 21, elastic sliding block; 22, distance measuring extrusion wheel; 23, angle adjustment gear; 24, adjustment rack; 25, magnetic moving ruler; 26, electromagnetic seat; 27, optical transfer track; 28, optical scanning camera. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0017] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] Embodiment, refer to Figures 1 to 8The utility model provides a test limiting seat for the processing of aviation hot end component, including optical detection device, optical test table 2 set up on test table 1 and limiting test spare combined with optical test table 2, characterized by optical detection device includes support frame and optical transfer track 27 set up on support frame, optical transfer track 27 follow set up optical scanning camera 28, test table 1 is connected with optical test table 2 through adaptive communication piece, test table 1 is provided with motor of controlling adaptive communication piece to rotate to reach control optical test table 2 to rotate, further, adaptive communication piece includes adaptive engagement seat 11 set up on test table 1, and smoke pipe 12 is set up on adaptive engagement seat 11, and the bottom of optical test table 2 is provided with the cooperation engagement interface that is adapted to adaptive engagement seat 11, and the smoke gas interface is opened to the bottom of optical test track seat 3 with smoke pipe 12 is opposite and is penetrated through.

[0020] Further, the inner bottom of the adaptive inspection port 9 is provided with a smoke gas passage 13 that penetrates the L-shaped mounting seat 6 and the limiting test base 5 in sequence, and the switching slide rail member is provided with a communication port 14 that connects the smoke gas passage 13 and the smoke gas interface.

[0021] The smoke gas test pipe is connected to the smoke gas pipe 12 provided on the test table 1, which is used to transport smoke gas to the heat dissipation holes of the turbine blade installed on the limiting test member (the heat dissipation holes in the turbine blade are located at the blade root, and in the installation stage, the bottom of the optical dynamic slide seat 15 is in communication with the smoke gas interface, and the top is in communication with the smoke gas passage 13 provided in the adaptive inspection port 9, and the heat dissipation hole of the turbine blade is in communication with the smoke gas passage 13 in the installation stage), and the smoke gas state simulation test is carried out.

[0022] The optical test table 2 is provided with a plurality of optical test track seats 3 for moving the limiting test member, and the optical test track seat 3 is provided with a switching slide rail member. Further, the switching slide rail member includes an optical dynamic slide seat 15 provided on the optical test track seat 3, a connecting column 4 rotatably connected above the optical dynamic slide seat 15, the connecting column 4 being detachably connected with the limiting test base 5 through threads, the bottom of the limiting test base 5 being provided with a threaded hole for thread connection with the connecting column 4, the outer side wall of the connecting column 4 being fixedly connected with an angle switching gear 16, and the side wall of the optical test track seat 3 being fixedly connected with a switching tooth groove 17 engaged with the angle switching gear 16. The above further effect is that under the driving of the push rod 19, the optical dynamic slide seat 15 is moved, when the optical dynamic slide seat 15 is moved to the switching tooth groove 17, the angle switching gear 16 is engaged with the switching tooth groove 17, thereby driving the connecting column 4 to rotate, so that the original horizontal rotation angle on the limiting test member is changed.

[0023] The switching sliding rail piece is detachably connected with the limiting test piece through the connecting column 4, and the test bench 1 is provided with a positive control piece for controlling the movement of the limiting test piece and a blade size detection device; The limiting test piece comprises a limiting test base 5, an L-shaped mounting seat 6 is arranged above the limiting test base 5, the L-shaped mounting seat 6 is connected with a limiting cylinder 8 through a transverse rotating shaft 7, the transverse rotating shaft 7 is rotatably arranged on the L-shaped mounting seat 6, and an angle adjusting gear 23 is fixedly connected to an end portion; an adjusting rack 24 engaged with the angle adjusting gear 23 is fixedly connected to a side wall of the optical test rail seat 3.

[0024] An adaptive inspection opening 9 for installing the turbine blade is formed in the limiting cylinder 8, and a limiting threaded half ring 10 is arranged on the limiting cylinder 8; the half ring of the limiting threaded half ring 10 is arranged to enable the turbine blade to be installed from the gap when the gap position corresponds to the adaptive inspection opening 9, so that the blade root portion can enter the adaptive inspection opening 9; whether the blade root portion can enter the adaptive inspection opening 9 is also a way of size detection.

[0025] The positive control piece comprises an outer edge ring body 18 arranged on the test bench 1, and a positive control push rod 19 is arranged on the outer edge ring body 18; the positive control push rod 19 is provided with a magnetic disc magnetically attracted to the optical dynamic sliding seat 15; the magnetic disc is arranged to realize magnetic attraction linkage between the optical dynamic sliding seat 15, so that the positive control push rod 19 can control the optical dynamic sliding seat 15 to slide horizontally.

[0026] The blade size detection device comprises a distance measuring seat 20 arranged on the outer edge ring body 18, and distance measuring extrusion wheels 22 are connected to the distance measuring seat 20 through elastic sliding blocks 21 on both sides; a distance sensor for measuring the moving distance of the distance measuring extrusion wheels 22 is arranged in the distance measuring seat 20; the distance sensor is prior art and will not be described in detail here; When detecting the size of the blade, the positive control push rod 19 drives the limiting test piece to move to a predetermined position; in the process of movement, the angle adjusting gear 23 is engaged with the adjusting rack 24, the transverse rotating shaft 7 drives the limiting cylinder 8 to rotate, and the turbine blade adaptively installed on the limiting cylinder 8 is in a horizontal lying state; at this time, it is the stage of testing the size; the optical test bench 2 is driven to rotate by the adaptive adapter seat 11; in the process of rotation, the blade tip of the turbine blade contacts the distance measuring extrusion wheel 22 and drives the distance measuring extrusion wheel 22 to extrude and move; through the analysis of the distance change path curve of the distance measuring extrusion wheel 22 by the distance sensor, the size of the turbine blade can be detected; In the visual and optical scanning detection of the turbine blade, the limiting test piece can be driven by the active control push rod 19 to move reciprocatingly in the optical test rail seat 3. In the reciprocating movement, the angle adjusting gear 23 and the adjusting rack 24 are constantly displaced, thereby driving the turbine blade under test to "fan" and constantly change the angle, so as to maximize the presentation effect of the detection area.

[0027] The leaf root size detection device is arranged in the adaptive test opening 9. The leaf root size detection device comprises a magnetic moving ruler 25 movably arranged in the adaptive test opening 9. The adaptive test opening 9 is provided with an electromagnetic seat 26 repelling the magnetic moving ruler 25. The limiting cylinder 8 is provided with a scale for detecting the moving distance of the magnetic moving ruler 25. The polishing precision of the leaf root can provide the moving distance of the magnetic moving ruler 25 for detection.

[0028] When the blade is installed, the operator installs the turbine blade to be detected on the limiting test piece. Specifically, the leaf root part of the blade is placed in the adaptive test opening 9 by aligning the notch of the limiting threaded half ring 10 on the limiting cylinder 8 with the adaptive test opening 9, and then the limiting threaded half ring 10 is tightened to fasten. At this time, the limiting cylinder 8 can be placed and protected on the turbine blade during the test by being screwed alone. In the size detection stage, the leaf root size detection device in the adaptive test opening 9 works synchronously. The electromagnetic seat 26 is electrified to generate a magnetic force repelling the magnetic moving ruler 25, thereby pushing the magnetic moving ruler 25 to tightly adhere to the surface of the leaf root. The processing precision of the leaf root determines the moving distance of the magnetic moving ruler 25. By reading the scale or sensor beside it, the key size of the leaf root can be tested. When the turbine blade is tested by the test bench 1, the active control push rod 19 on the test bench 1 pushes the optical dynamic slide 15 (by magnetic attraction), thereby driving the entire limiting test piece to move horizontally along the optical test rail seat 3. In the movement process, the angle adjusting gear 23 fixed on the L-shaped mounting seat 6 will mesh with the adjusting rack 24 fixed on the side wall of the optical test rail seat 3. This meshing movement forces the transverse rotating shaft 7 to rotate, and finally drives the limiting cylinder 8 and the turbine blade mounted thereon to rotate accurately from the vertical installation state to the horizontal state (i.e. "lying flat"). This posture is most suitable for macro-size measurement.

[0029] The motor on the test bench 1 is started, and drives the whole optical test bench 2 to rotate slowly through the adaptive adapter 11. With the rotation of the optical test bench 2, the tip of the turbine blade in the horizontal state will sweep the distance measuring extrusion wheel 22 on the distance measuring seat 20, the profile of the blade will extrude the distance measuring extrusion wheel 22, so that the distance measuring extrusion wheel 22 is displaced, and the built-in distance sensor records the displacement curve of the distance measuring extrusion wheel 22 in real time. By analyzing the displacement-rotation angle curve, the system can calculate the geometric dimensions of the blade (such as the blade profile, chord length, twist angle, etc.); In the visual and optical scanning detection stage, the optical transfer track 27 will always drive the optical scanning camera 28 to move with the turbine blade being detected. The active control push rod 19 will drive the limiting test piece to reciprocate on the optical test track seat 3. In the reciprocating process, the angle adjusting gear 23 and the adjusting rack 24 will continuously mesh, disengage and mesh again, causing the limiting cylinder 8 and the turbine blade to produce a periodic angular swing similar to “flapping”. This “flapping” makes each surface of the turbine blade (blade basin, blade back, leading edge, trailing edge) can be exposed to the optical scanning camera (optical scanning device) moving at any time, so that full-surface non-blind angle scanning and imaging detection of the blade can be realized without manual turning of the blade. After the above detection is completed, the active control push rod 19 is actuated again to move the limiting test piece to a specific station, at which time the horizontal rotation of the turbine blade is realized under the action of the angle switching gear 16 and the switching tooth groove 17. At this time, the communication port 14 in the optical dynamic slide 15 connects the smoke gas interface at the bottom of the optical test bench 2 with the smoke gas port 13 at the bottom of the adaptive inspection port 9. The external smoke gas test equipment starts to work, simulates high-temperature gas, and the smoke gas enters the heat dissipation hole inlet at the blade root of the turbine blade through the smoke gas pipeline 12, the smoke gas interface and the communication port 14. By monitoring the flow, pressure or temperature change of the smoke gas, it can be judged whether the complex cooling channel inside the blade is unobstructed, blocked or leaked, so as to complete the simulation test of the performance of the heat dissipation hole, so as to achieve sufficient inspection of the turbine blade and significantly improve the detection efficiency.

[0030] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A test limiting seat for processing hot-end components of aerospace, comprising an optical inspection device, an optical test stage (2) disposed on a test bench (1), and a limiting test piece used in combination with the optical test stage (2), characterized in that, The optical detection device includes a support frame and an optical transfer track (27) set on the support frame. An optical scanning camera (28) is set on the optical transfer track (27). The test bench (1) and the optical test bench (2) are connected by an adapter connector. The optical test bench (2) is provided with multiple optical test rails (3) for the movement of the limiting test piece. The optical test rails (3) are provided with a switching slide rail component. The switching slide rail component is detachably connected to the limiting test piece through a connecting column (4). The test bench (1) is provided with an active control component for controlling the movement of the limiting test piece and a blade size detection device. The limiting test piece includes a limiting test base (5), an L-shaped mounting seat (6) is provided above the limiting test base (5), the L-shaped mounting seat (6) is connected to a limiting cylinder (8) through a transverse rotating shaft (7), the limiting cylinder (8) is provided with an adapter inspection port (9) for turbine blade installation, the limiting cylinder (8) is provided with a limiting threaded half ring (10), and a blade root size detection device is provided in the adapter inspection port (9).

2. The test limiting seat for machining aerospace hot-end components according to claim 1, characterized in that, The adapter connector includes an adapter connector (11) set on the test bench (1), a flue gas pipe (12) is provided on the adapter connector (11), the bottom of the optical test bench (2) is provided with a mating connection port that is compatible with the adapter connector (11), and the optical test bench (2) is provided with a flue gas interface that is connected to the flue gas pipe (12) and communicates with the bottom of the optical test track (3).

3. A test limiting seat for machining aerospace hot-end components according to claim 2, characterized in that, The bottom of the adapter test port (9) is provided with a flue gas inlet (13) that passes through the L-shaped mounting base (6) and the limit test base (5) in sequence. The switching slide rail is provided with a connection port (14) that connects to the flue gas inlet (13) at the top and to the flue gas interface at the bottom.

4. A test limiting seat for machining aerospace hot-end components according to claim 1, characterized in that, The switching slide rail component includes an optical dynamic slide (15) disposed on the optical test rail base (3), a connecting column (4) is rotatably connected above the optical dynamic slide (15), the connecting column (4) is detachably connected to the limiting test base (5) by threads, an angle switching gear (16) is fixedly connected to the outer wall of the connecting column (4), and a switching tooth groove (17) that meshes with the angle switching gear (16) is fixedly connected to the side wall of the optical test rail base (3).

5. A test limiting seat for machining aerospace hot-end components according to claim 4, characterized in that, The active control component includes an outer ring (18) set on the test bench (1), an active control push rod (19) is set on the outer ring (18), and the active control push rod (19) is set with a magnetic disk attracted by an optical dynamic slide (15).

6. A test limiting seat for machining aerospace hot-end components according to claim 1, characterized in that, The blade size detection device includes a distance measuring seat (20) set on the outer edge ring (18). The distance measuring seat (20) is connected to a distance measuring extrusion wheel (22) on both sides by an elastic slider (21). The distance measuring seat (20) is equipped with a distance sensor to measure the movement distance of the distance measuring extrusion wheel (22).

7. A test limiting seat for machining aerospace hot-end components according to claim 1, characterized in that, The transverse rotating shaft (7) is rotatably mounted on the L-shaped mounting base (6), and an angle adjustment gear (23) is fixedly connected to its end. An adjustment rack (24) that meshes with the angle adjustment gear (23) is fixedly connected to the side wall of the optical test track base (3).

8. A test limiting seat for machining aerospace hot-end components according to claim 1, characterized in that, The leaf root size detection device includes a magnetic movable ruler (25) movably disposed in the fitting inspection port (9). The end of the fitting inspection port (9) is provided with an electromagnetic base (26) that repels the magnetic force of the magnetic movable ruler (25). The limiting cylinder (8) is provided with a scale for detecting the moving distance of the magnetic movable ruler (25).

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