A repair device and control method for APU diffuser vane damage

Abstract

The application provides a kind of repair device and control method for APU diffuser blade damage, it is related to brazing repair technical field.This kind of repair device for APU diffuser blade damage, including brazing machine, blade body and two brazing heads, two brazing heads are arranged on brazing machine, the side wall of brazing machine is provided with two arc motors, each arc motor is slidably connected with magnetic track, and two brazing heads are respectively arranged on the side wall of back plate;Brazing machine is equipped with operating platform, arc table is arranged on operating platform, chuck mechanism is arranged on the side wall of operating platform.The chuck mechanism for fixing blade body is arranged on the side wall of brazing machine, so that the blade body needs to be brazed is fixed in specified position, then the fan blade to be repaired on blade body is fixed on arc table by using fixing table and limiting mechanism, so that the deformation of fan blade during brazing repair is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of brazing repair, and particularly relates to a repair device for APU diffuser blade damage. BACKGROUND

[0002] APU stands for Auxiliary Power Unit, which is a small power unit on an airplane or a large vehicle, used to provide power, hydraulic or pneumatic power. The APU diffuser is a key component in the aviation field, mainly used to regulate air flow speed and pressure to prevent compressor surge.

[0003] Martensitic stainless steel is a kind of iron-based alloy formed by high-temperature austenitizing and rapid cooling to form martensitic structure, and then adjusted by tempering. Its chromium content is usually 11.5% to 18%, and the carbon content is high, and some contain elements such as molybdenum, nickel and vanadium. Due to its high strength, good corrosion resistance and moderate cost, it is widely used in the manufacture of APU diffuser blades.

[0004] After the APU diffuser is used for a period of time, corrosion defects will occur on the leading edge of the blade, which may cause APU surge in severe cases. Generally, the damaged blade is repaired by replacing the blade (front edge). The steps for repairing the damaged blade are as follows: making the blade; removing the corresponding blade of the diffuser by electrical processing; installing the blade; brazing the blade; and processing to remove excess material. However, since the blade is made of stainless steel, it is prone to deformation during brazing, which may eventually cause the shape of the brazed APU diffuser blade to deviate from the expected shape, affecting the normal operation of the diffuser. SUMMARY

[0005] The technical problem to be solved by the application is to overcome the shortcomings of the prior art and provide a repair device and control method for APU diffuser blade damage.

[0006] The technical solution adopted to solve the above technical problem is:

[0007] A repair device for APU diffuser blade damage, comprising a brazing machine, a blade body and two brazing heads, both of which are arranged on the brazing machine, and two arc-shaped motors are arranged on the side wall of the brazing machine, each of which is slidably connected with a magnetic rail, and a back plate is fixedly arranged on the side wall of the magnetic rail away from the arc-shaped motor, and two brazing heads are arranged on the side wall of the back plate.

[0008] An operating table is arranged in the brazing machine, an arc-shaped table is arranged on the operating table, a chuck mechanism is arranged on the side wall of the operating table, the blade body is arranged on the chuck assembly, two fixing tables are arranged on the side wall of the arc-shaped table, and two limiting mechanisms for limiting the blade body are arranged between the fixing tables and the arc-shaped table.

[0009] Through the technical scheme, the chuck mechanism is arranged on the side wall of the brazing machine to fix the blade body, so that the blade body to be brazed is fixed at a specified position, and then the fixing table and the limiting mechanism are used to fix the fan blade to be repaired on the arc-shaped table, so that the deformation of the fan blade during brazing repair is avoided.

[0010] Further, the back plate is fixedly provided with a limiting rod, the limiting rod is in an L shape, the back portion of the arc-shaped table is provided with a sliding groove, and the end of the limiting rod away from the back plate is slidably connected with the inner wall of the sliding groove.

[0011] Through the technical scheme, the arc-shaped motor and the magnetic track are arranged, so that the brazing head moves along the arc line. In order to ensure the stable movement of the brazing head, the limiting rod is arranged on the back plate where the brazing head is located. The sliding of the limiting rod in the sliding groove makes the movement of the back plate and the brazing head more stable, so that the brazing work of the brazing head is more stable and controllable.

[0012] Further, the two arc-shaped motors are at different heights and are located on a vertical straight line at the end close to each other.

[0013] Through the technical scheme, the two arc-shaped motors make the two brazing heads move along the arc line, so as to adapt to the shape of the blade body and facilitate the brazing of the front end of the fan blade of the blade body. In order to prevent the two brazing heads from colliding and interfering with each other, the ends of the arc-shaped motors need to be arranged at non-intersecting positions. In order to maximize the moving position of the brazing head, the ends of the two arc-shaped motors need to be arranged on a vertical straight line, so that the part of the entire blade body placed on the arc-shaped table is within the brazing range of the brazing head.

[0014] Further, the chuck mechanism comprises a servo motor, a chuck base, a rotating chuck, a chuck top shell, a driving bevel gear, two driven bevel gears, two rotating members and three inner top blocks. The servo motor is fixedly connected with the side wall of the driving bevel gear. The chuck base and the chuck top shell are buckled together. The rotating chuck, the driving bevel gear and the two driven bevel gears are located between the chuck base and the chuck top shell. The rotating chuck is provided with a bottom bevel gear at the bottom, and a flat thread at the top. The driving bevel gear and the two driven bevel gears are engaged with the bottom bevel gear. The three inner top blocks are engaged with the flat thread. The two rotating members are fixedly connected with the side walls of the two driven bevel gears respectively. The ends of the two rotating members away from the driven bevel gears are connected with the limiting mechanism respectively.

[0015] Through the technical scheme, when the blade body is placed on the inner top block, the rotation of the servo motor drives the driving bevel gear to rotate, and then drives the rotating chuck to rotate, the flat thread arranged on the rotating chuck drives the three inner top blocks to move outward together, and finally abuts against the inner wall of the blade body to fix the position of the blade body.

[0016] Further, the inner top block comprises a clamping jaw, a rubber top block and a placing block, the clamping jaw is engaged with the flat thread, the rubber top block and the placing block are fixedly arranged on the top of the clamping jaw, one end of the rubber top block is an arc surface, and the other end is a vertical surface, the arc surface of the rubber top block abuts against the inner wall of the blade body, and the bottom of the blade body abuts against the top of the placing block.

[0017] Through the technical scheme, the blade body is temporarily placed on the placing block, in the initial state, the three rubber top blocks are arranged in the blade body, the length of the placing block can be adjusted according to requirements, as long as the blade body is placed on the placing block at all times, the arc surface of the rubber top block abuts against the inner wall of the blade body to fix the blade body, and because the rubber top block can be deformed, the inner wall of the blade body is not damaged and the fixing effect is good.

[0018] Further, the rotating member comprises a connecting rod, a rotating circular block, an inclined block, a bottom rod, a rotating cylinder, a center rod, a rotating table and a rotating rod, the connecting rod is fixedly connected with the side wall of the driven bevel gear, the rotating circular block is fixedly arranged at the end of the connecting rod away from the driven bevel gear, the inclined block is fixedly arranged on the side wall of the rotating circular block, the bottom rod is fixedly arranged at the bottom of the inclined block, the center rod is fixedly arranged on the rotating table, the rotating cylinder is movably sleeved on the center rod, the end of the bottom rod away from the inclined block is fixedly connected with the side wall of the rotating cylinder, and the rotating rod is fixedly connected with the side wall of the rotating table.

[0019] Through the technical scheme, when the servo motor drives the driving bevel gear to rotate, because the driving bevel gear and the driven bevel gear are engaged with the bottom bevel gear at the same time, when the driving bevel gear drives the bottom bevel gear to rotate, the two driven bevel gears will rotate together, and then the connecting rod drives the rotating circular block to rotate together, the inclined block arranged on the rotating circular block drives the bottom rod and the rotating cylinder to rotate together, and finally the rotating rod rotates, and the arrangement of the rotating member enables the driven bevel gear and the rotating rod, which are not in a straight line, to be linked.

[0020] Further, the limiting mechanism comprises a side baffle, a rotating gear, a driving rod, a passive bevel gear and a driving bevel gear, one end of the rotating rod away from the rotating table is fixedly connected with the driving bevel gear, the passive bevel gear is engaged with the driving bevel gear, the driving rod is fixedly connected with the side wall of the passive bevel gear, the side wall of the fixed table is provided with a movement groove, the side baffle is slidably connected with the inner wall of the movement groove, the bottom of the side baffle is abutted with the side wall of the blade body, a center hole is formed in the side baffle, the side wall of the center hole is fixedly provided with a side tooth, the side tooth is engaged with the rotating gear, and one end of the driving rod away from the passive bevel gear is fixedly connected with the rotating gear.

[0021] Through the above technical scheme, under the driving of the passive bevel gear, the rotating rod also rotates, the driving bevel gear arranged on the side wall of the rotating rod drives the passive bevel gear to rotate together, the driving rod arranged on the passive bevel gear drives the rotating gear to rotate, the side tooth engaged with the rotating gear moves transversely under the driving of the rotating gear, and then the side baffle presses the side wall of the fan blade of the blade body, so that the deformation of the fan blade during brazing is prevented.

[0022] Further, the center hole is in the form of a waist-shaped hole, the width of the center hole is greater than the diameter of the rotating gear, and the thickness of the rotating gear is less than the thickness of the side baffle.

[0023] Through the above technical scheme, since the movement of the side baffle is driven by the rotating gear, in order to prevent the center hole side wall from colliding with the rotating gear, the shape of the center hole is set as a waist-shaped hole with arc-shaped two ends, and in order to prevent unnecessary friction between the rotating gear and the side wall of the movement groove, the thickness of the rotating gear needs to be set to be relatively small.

[0024] Further, the fixed table is between two fan blades of the blade body, and the fixed table is obliquely arranged on the arc-shaped table.

[0025] Through the above technical scheme, the position of the fixed table needs to ensure that the side baffle can press the fan blade of the blade body after extending a distance, so when the blade body is placed, the fixed table needs to be between two fan blades, and in order to more closely fit the fan blades arranged on the blade body, the fixed table also needs to have a certain inclination angle, so that the side baffle can more conveniently press the fan blade.

[0026] A control method of a repair device for APU diffuser blade damage, comprising the following specific steps:

[0027] S1, in the initial state, the three inner top blocks are in the middle position of the chuck top shell, the worker places the blade body to be brazed on the placing block of the inner top block, and the two fixed tables are in the middle position of the two adjacent fan blades of the blade body;

[0028] S2, start the servo motor, the rotation of the servo motor will drive the driving bevel gear to rotate, due to the rotation of the driving bevel gear, the bottom bevel gear meshing with it will make the rotating chuck rotate, the flat thread arranged on the top of the rotating chuck will also follow the rotation, and then the claw meshing with the flat thread will drive the rubber top block to move, the outward moving rubber top block will gradually push against the inner wall of the blade body, and the blade body is clamped in the current position;

[0029] S3, while the servo motor drives the driving bevel gear to rotate, since the bottom bevel gear is driven by the driving bevel gear to rotate, the two driven bevel gears meshing with the bottom bevel gear will rotate at the same time, and then drive the connecting rod to rotate, the rotating block arranged on the other end of the connecting rod will drive the inclined block to rotate, and the bottom rod fixed on the bottom of the inclined block will drive the rotating cylinder to rotate around the rotating block, the rotation of the rotating cylinder will drive the center rod and the rotating table to rotate, and the rotating rod arranged on the side wall of the rotating table will follow the rotation;

[0030] S4, under the driving of the rotating rod, the driving bevel gear arranged on the side wall of the rotating rod will drive the driven bevel gear to rotate, the driving rod arranged on the side wall of the driven bevel gear will also follow the rotation, and the rotating gear located at the other end of the driving rod will also rotate synchronously, and the side teeth meshing with the rotating gear will drive the side baffle to move in the movement groove, and then make the side baffle move transversely and press on the blade body, so as to fix the fan blade to be repaired on the blade body;

[0031] S5, start the arc-shaped motor, so that the magnetic track drives the back plate and the brazing head to move together until the brazing head is located directly above the fan blade to be brazed, and then start the brazing head to braze and repair the fan blade to be repaired on the blade body.

[0032] The beneficial effects of the present application are as follows:

[0033] (1) The chuck mechanism for fixing the blade body is arranged on the side wall of the brazing machine, the driving of the servo motor can fix the blade body bottom by the rubber top block, so that the blade body to be brazed is fixed at the specified position, and then the fixing table and the limiting mechanism are used, when the blade body is fixed, the passive bevel gear in the chuck mechanism will also drive the rotating part to rotate, and then the side baffle on the side wall of the fixing table moves transversely, so as to fix the fan blade to be repaired on the blade body on the arc-shaped table, and ensure that the fan blade will not be deformed during brazing repair;

[0034] (2) The two arc-shaped motors and the brazing heads are arranged on the brazing machine, so that the two brazing heads can move along the arc, thereby being more suitable for the shape of the blade body, facilitating brazing of the fan blade front end of the blade body, and since the arc-shaped motors are at different heights and do not intersect, the part of the entire blade body placed on the arc-shaped table is ensured to be within the movement range of the two brazing heads;

[0035] (3) The rotating member is arranged on the side wall of the driven bevel gear, so that the driven bevel gear and the rotating rod, which are not originally on a straight line, can be linked and rotated, the servo motor can not only drive the chuck mechanism to fix the blade body, but also drive the side baffle to move transversely at the same time, thereby fixing the fan blade on the blade body, effectively preventing the fan blade from deforming during brazing, and thereby ensuring the quality of brazing repair. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of the present application;

[0037] Figure 2 is a bottom view of the blade body in the present application;

[0038] Figure 3 is a schematic diagram of the structure of the brazing machine when the blade body is not placed in the present application;

[0039] Figure 4 is an exploded view of the chuck mechanism in the present application;

[0040] Figure 5 is a schematic diagram of the structure of the inner top block in the present application;

[0041] Figure 6 is a schematic diagram of the structure connection between the driven bevel gear and the rotating member in the present application;

[0042] Figure 7 is a sectional view of the operating table and the fixed table in the present application;

[0043] Figure 8 is Figure 7 is a local enlarged view of A in the present application.

[0044] Mark No. : 1, brazing machine; 2, blade body; 3, brazing head; 4, arc motor; 5, magnetic rail; 6, back plate; 7, operation table; 8, arc table; 9, fixed table; 10, limiting rod; 11, sliding groove; 12, servo motor; 13, chuck base; 14, rotating chuck; 15, chuck top shell; 16, driving bevel gear; 17, driven bevel gear; 18, bottom bevel gear; 19, flat thread; 20, clamping jaw; 21, rubber top block; 22, placing block; 23, arc surface; 24, vertical surface; 25, connecting rod; 26, rotating circular block; 27, inclined block; 28, bottom rod; 29, rotating cylinder; 30, center rod; 31, rotating table; 32, rotating rod; 33, side baffle; 34, rotating gear; 35, driving rod; 36, driven bevel gear; 37, driving bevel gear; 38, movement groove; 40, center hole; 41, side surface tooth. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0046] As Figure 1 With Figure 2 the present embodiment for repairing the APU diffuser blade damage device, including brazing machine 1, blade body 2 and two brazing heads 3, two brazing heads 3 are arranged on the brazing machine 1, the side wall of the brazing machine 1 is provided with two arc motors 4, each arc motor 4 is slidably connected with a magnetic rail 5, the side wall of the magnetic rail 5 away from the arc motor 4 is fixedly provided with a back plate 6, the operation of the arc motor 4 can drive the back plate 6 and the brazing head 3 to move along the arc motor 4, two brazing heads 3 are arranged on the side wall of the back plate 6, an electric push rod or other lifting mechanism is additionally arranged in the back plate 6, the lifting mechanism can drive the brazing head 3 to lift, thereby better brazing repair of the fan blade of the blade body 2.

[0047] The two arc motors 4 are at different heights, and the two arc motors 4 are located on a vertical straight line at one end close to each other, the two arc motors 4 can make the two brazing heads 3 move along the arc line, thereby adapting to the shape of the blade body 2, facilitating the brazing of the front end of the fan blade of the blade body 2, in order to avoid collision and interference between the two brazing heads 3, the end of the arc motor needs to be arranged at a non-intersecting position, at the same time, in order to ensure the maximum possibility of the moving position of the brazing head 3, the end of the two arc motors 4 needs to be arranged on a vertical straight line, thereby ensuring that the part of the whole blade body 2 placed on the arc table 8 is within the brazing range of the brazing head 3.

[0048] Referring to Figure 3 WithFigure 7 The bottom of the back plate 6 is fixedly provided with a limiting rod 10, the limiting rod 10 is in the shape of "L", the back of the arc-shaped table 8 is provided with a sliding groove 11, and the end of the limiting rod 10 away from the back plate 6 is slidably connected with the inner wall of the sliding groove 11. The arrangement of the arc-shaped motor 4 and the magnetic rail 5 will make the brazing head 3 move along the arc line. In order to ensure the stable movement of the brazing head 3, the limiting rod 10 is specially arranged on the back plate 6 where the brazing head 3 is located. The sliding of the limiting rod 10 in the sliding groove 11 will make the movement of the back plate 6 and the brazing head 3 more stable, thereby ensuring that the brazing work of the brazing head 3 is more stable and controllable.

[0049] As shown in Figures 3-5 The brazing machine 1 is provided with an operating table 7, the operating table 7 is provided with an arc-shaped table 8, the side wall of the operating table 7 is provided with a chuck mechanism, the chuck mechanism comprises a servo motor 12, a chuck base 13, a rotating chuck 14, a chuck top shell 15, a driving bevel gear 16, two driven bevel gears 17, two rotating parts and three inner top blocks, the servo motor 12 is fixedly connected with the side wall of the driving bevel gear 16, the chuck base 13 is buckled with the chuck top shell 15, the rotating chuck 14, the driving bevel gear 16 and the two driven bevel gears 17 are all located between the chuck base 13 and the chuck top shell 15, the bottom of the rotating chuck 14 is provided with a bottom bevel gear 18, the top of the rotating chuck 14 is provided with a plane thread 19, the driving bevel gear 16 and the two driven bevel gears 17 are all meshed with the bottom bevel gear 18, the three inner top blocks are all meshed with the plane thread 19. When the blade body 2 is placed on the inner top blocks, the rotation of the servo motor 12 will drive the driving bevel gear 16 to rotate, thereby making the rotating chuck 14 rotate, the plane thread 19 arranged on the rotating chuck 14 will drive the three inner top blocks to move outward together, and finally abut against the inner wall of the blade body 2, thereby achieving the function of fixing the position of the blade body 2.

[0050] The inner top block comprises a clamping jaw 20, a rubber top block 21 and a placing block 22, the clamping jaw 20 is meshed with the plane thread 19, the rubber top block 21 and the placing block 22 are both fixedly arranged on the top of the clamping jaw 20, one end of the rubber top block 21 is in the shape of an arc 23, and the other end is in the shape of a vertical surface 24, the arc-shaped surface 23 of the rubber top block 21 abuts against the inner wall of the blade body 2, and the bottom of the blade body 2 abuts against the top of the placing block 22, so that the blade body 2 is temporarily placed on the placing block 22. In the initial state, the three rubber top blocks 21 are inside the blade body 2. The length of the placing block 22 can be adjusted according to requirements, as long as the blade body 2 can be placed on the placing block 22 from the beginning to the end. The arc-shaped surface 23 of the rubber top block 21 abuts against the inner wall of the blade body 2, thereby achieving the fixing effect. Moreover, since the rubber top block 21 can be deformed, it will not damage the inner wall of the blade body 2 and has good fixing effect.

[0051] As shown in Figure 4 As shown in Figure 6As shown, the two rotating members are fixedly connected with the side walls of the two passive bevel gears 17 respectively, and the ends away from the passive bevel gears 17 of the two rotating members are connected with the limiting mechanism respectively. The rotating member comprises a connecting rod 25, a rotating circular block 26, an inclined block 27, a bottom rod 28, a rotating cylinder 29, a center rod 30, a rotating table 31 and a rotating rod 32. The connecting rod 25 is fixedly connected with the side wall of the passive bevel gear 17. The rotating circular block 26 is fixedly arranged at the end of the connecting rod 25 away from the passive bevel gear 17. The inclined block 27 is fixedly arranged on the side wall of the rotating circular block 26. The bottom rod 28 is fixedly arranged at the bottom of the inclined block 27. The center rod 30 is fixedly arranged on the rotating table 31. The rotating cylinder 29 is movably sleeved on the outer side of the center rod 30. The end of the bottom rod 28 away from the inclined block 27 is fixedly connected with the side wall of the rotating cylinder 29. The rotating rod 32 is fixedly connected with the side wall of the rotating table 31. When the servo motor 12 drives the driving bevel gear 16 to rotate, since the driving bevel gear 16 and the passive bevel gear 17 are simultaneously meshed with the bottom bevel gear 18, when the driving bevel gear 16 drives the bottom bevel gear 18 to rotate, the two passive bevel gears 17 will follow to rotate, thereby making the connecting rod 25 drive the rotating circular block 26 to rotate together. The inclined block 27 arranged on the rotating circular block 26 also drives the bottom rod 28 and the rotating cylinder 29 to rotate together, and finally makes the rotating rod 32 rotate. The arrangement of the rotating member makes the passive bevel gear 17 and the rotating rod 32, which are not originally in a straight line, be able to be linked together.

[0052] In combination Figure 2 , Figure 7 with Figure 8 As shown, the blade body 2 is arranged on the chuck assembly. The side wall of the arc-shaped table 8 is provided with two fixed tables 9. The fixed tables 9 are between the two leaves of the blade body 2. The position of the fixed table 9 needs to ensure that the side baffle 33 can be pressed tightly after extending a distance. Therefore, when placing the blade body 2, it is necessary to ensure that the fixed table 9 is between the two leaves. In order to more closely fit the leaves arranged on the blade body 2, the fixed table 9 also needs to have a certain inclination angle, thereby more conveniently pressing the leaves by the side baffle 33.

[0053] The fixed table 9 is obliquely arranged on the arc-shaped table 8, two limiting mechanisms for limiting the blade body 2 are arranged between the fixed table 9 and the arc-shaped table 8, the limiting mechanism comprises a side baffle 33, a rotating gear 34, a driving rod 35, a passive bevel gear 36 and a driving bevel gear 37, the end of the rotating rod 32 away from the rotating table 31 is fixedly connected with the driving bevel gear 37, the passive bevel gear 36 is engaged with the driving bevel gear 37, the driving rod 35 is fixedly connected with the side wall of the passive bevel gear 36, the side wall of the fixed table 9 is provided with a movement groove 38, the side baffle 33 is slidably connected with the inner wall of the movement groove 38, the bottom of the side baffle 33 is abutted against the side wall of the blade body 2, a center hole 40 is arranged in the side baffle 33, the side wall of the center hole 40 is fixedly provided with a side tooth 41, the center hole 40 is in the form of a waist-shaped hole, the width of the center hole 40 is greater than the diameter of the rotating gear 34, the thickness of the rotating gear 34 is less than the thickness of the side baffle 33, since the movement of the side baffle 33 is driven by the rotating gear 34, in order to prevent the side wall of the center hole 40 from colliding with the rotating gear 34, the shape of the center hole 40 is set as a waist-shaped hole with arc-shaped ends, and in order to prevent the rotating gear 34 from rubbing against the side wall of the movement groove 38, the thickness of the rotating gear 34 needs to be set to be small, the side tooth 41 is engaged with the rotating gear 34, and the end of the driving rod 35 away from the passive bevel gear 36 is fixedly connected with the rotating gear 34.

[0054] Under the drive of the passive bevel gear 17, the rotating rod 32 also rotates, the driving bevel gear 37 arranged on the side wall of the rotating rod 32 drives the passive bevel gear 36 to rotate, the driving rod 35 arranged on the passive bevel gear 36 drives the rotating gear 34 to rotate, the side tooth 41 engaged with the rotating gear 34 moves transversely under the drive of the rotating gear 34, and then the side baffle 33 presses the side wall of the blade body 2, so that the blade is prevented from being deformed when being brazed.

[0055] The control method of the repair device for APU diffuser blade damage comprises the following specific steps:

[0056] S1, in the initial state, the three inner top blocks are in the middle position of the chuck top shell 15, the staff places the blade body 2 needing to be brazed on the placing block 22 of the inner top block, and the two fixed tables 9 are both in the middle position of the two adjacent blades of the blade body 2;

[0057] S2, the servo motor 12 is started, the rotation of the servo motor 12 drives the driving bevel gear 16 to rotate, the bottom bevel gear 18 engaged with the driving bevel gear 16 drives the rotating chuck 14 to rotate, the flat thread 19 arranged on the top of the rotating chuck 14 also rotates, and then the claw 20 engaged with the flat thread 19 drives the rubber top block 21 to move, the outward moving rubber top block 21 gradually abuts against the inner wall of the blade body 2, and the blade body 2 is clamped in the current position;

[0058] S3, while the servo motor 12 drives the driving bevel gear 16 to rotate, the two driven bevel gears 17 which are engaged with the bottom bevel gear 18 are driven to rotate at the same time, and then the connecting rod 25 is driven to rotate, the rotating block 26 arranged at the other end of the connecting rod 25 is driven to rotate, the bottom rod 28 fixed at the bottom of the inclined block 27 is driven to rotate around the rotating block 26, the rotation of the rotating cylinder 29 drives the central rod 30 and the rotating table 31 to rotate, and the rotating rod 32 arranged on the side wall of the rotating table 31 is driven to rotate;

[0059] S4, under the driving of the rotating rod 32, the driving bevel gear 37 arranged on the side wall of the rotating rod 32 drives the driven bevel gear 36 to rotate, the driving rod 35 arranged on the side wall of the driven bevel gear 36 is driven to rotate, the rotating gear 34 arranged at the other end of the driving rod 35 is driven to rotate at the same time, the side teeth 41 engaged with the rotating gear 34 drives the side baffle 33 to move in the movement groove 38, and then the side baffle 33 is driven to move transversely on the blade body 2, so as to fix the fan blade to be repaired on the blade body 2;

[0060] S5, the arc-shaped motor 4 is started, the magnetic track 5 drives the back plate 6 and the soldering head 3 to move, until the soldering head 3 is located above the fan blade to be soldered, and then the soldering head 3 is started to solder and repair the fan blade to be repaired on the blade body 2.

[0061] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application.

Claims

1. A repairing device for APU diffuser blade damage, comprising a brazing machine (1), a blade body (2) and two brazing heads (3), both of which are arranged on the brazing machine (1), characterized in that: The side wall of the brazing machine (1) is provided with two arc-shaped motors (4), each of which is slidably connected with a magnetic rail (5), the side wall of the magnetic rail (5) away from the arc-shaped motor (4) is fixedly provided with a back plate (6), and the two brazing heads (3) are respectively arranged on the side wall of the back plate (6). The operation table (7) is arranged in the brazing machine (1), the arc-shaped table (8) is arranged on the operation table (7), the chuck mechanism is arranged on the side wall of the operation table (7), the chuck mechanism comprises a servo motor (12), a chuck base (13), a rotating chuck (14), a chuck top shell (15), a driving bevel gear (16), two driven bevel gears (17), two rotating members and three inner top blocks, the servo motor (12) is fixedly connected with the side wall of the driving bevel gear (16), the chuck base (13) is buckled with the chuck top shell (15), the rotating chuck (14), the driving bevel gear (16) and the two driven bevel gears (17) are located between the chuck base (13) and the chuck top shell (15), the bottom of the rotating chuck (14) is provided with a bottom bevel gear (18), the top of the rotating chuck (14) is provided with a plane thread (19), the driving bevel gear (16) and the two driven bevel gears (17) are engaged with the bottom bevel gear (18), the three inner top blocks are engaged with the plane thread (19), the two rotating members are respectively fixedly connected with the side wall of the two driven bevel gears (17), and the two rotating members are respectively connected with the limiting mechanism away from the driven bevel gears (17). The inner top block comprises a claw (20), a rubber top block (21) and a placing block (22), the claw (20) is engaged with the plane thread (19), the rubber top block (21) and the placing block (22) are fixedly arranged on the top of the claw (20), one end of the rubber top block (21) is an arc surface (23), the other end is a vertical surface (24), the arc surface (23) of the rubber top block (21) abuts against the inner wall of the blade body (2), and the bottom of the blade body (2) abuts against the top of the placing block (22). The rotating member comprises a connecting rod (25), a rotating circular block (26), an inclined block (27), a bottom rod (28), a rotating cylinder (29), a center rod (30), a rotating table (31) and a rotating rod (32), the connecting rod (25) is fixedly connected with the side wall of the driven bevel gear (17), the rotating circular block (26) is fixedly arranged on the end of the connecting rod (25) away from the driven bevel gear (17), the inclined block (27) is fixedly arranged on the side wall of the rotating circular block (26), the bottom rod (28) is fixedly arranged on the bottom of the inclined block (27), the center rod (30) is fixedly arranged on the rotating table (31), the rotating cylinder (29) is movably sleeved on the outer side of the center rod (30), the end of the bottom rod (28) away from the inclined block (27) is fixedly connected with the side wall of the rotating cylinder (29), and the rotating rod (32) is fixedly connected with the side wall of the rotating table (31). The blade body (2) is arranged on the chuck assembly, the arc-shaped table (8) is provided with two fixing tables (9), the fixing table (9) and the arc-shaped table (8) are provided with two limiting mechanisms for limiting the blade body (2), the limiting mechanism comprises a side baffle (33), a rotating gear (34), a driving rod (35), a passive bevel gear (36) and a driving bevel gear (37), one end of the rotating rod (32) away from the rotating table (31) is fixedly connected with the driving bevel gear (37), the passive bevel gear (36) is engaged with the driving bevel gear (37), the driving rod (35) is fixedly connected with the side wall of the passive bevel gear (36), the side wall of the fixing table (9) is provided with a movement groove (38), the side baffle (33) is slidably connected with the inner wall of the movement groove (38), the bottom of the side baffle (33) abuts against the side wall of the blade body (2), a center hole (40) is formed in the side baffle (33), the side wall of the center hole (40) is fixedly provided with a side tooth (41), the side tooth (41) is engaged with the rotating gear (34), and one end of the driving rod (35) away from the passive bevel gear (36) is fixedly connected with the rotating gear (34).

2. The repair device for APU diffuser blade damage of claim 1, wherein, The back plate (6) is fixedly provided with a limiting rod (10) at the bottom, the limiting rod (10) is "L" shaped, the arc-shaped table (8) is provided with a sliding groove (11) at the back, and one end of the limiting rod (10) away from the back plate (6) is slidably connected with the inner wall of the sliding groove (11).

3. The repair apparatus for APU diffuser blade damage of claim 1, wherein, The two arc-shaped motors (4) are at different heights, and one end of the two arc-shaped motors (4) close to each other is on a vertical straight line.

4. The repair apparatus for APU diffuser blade damage of claim 1, wherein, The center hole (40) is in the form of a waist-shaped hole, the width of the center hole (40) is greater than the diameter of the rotating gear (34), and the thickness of the rotating gear (34) is less than the thickness of the side baffle (33).

5. The repair apparatus for APU diffuser blade damage of claim 1, wherein, The fixing table (9) is arranged between the two blades of the blade body (2), and the fixing table (9) is arranged on the arc-shaped table (8) in an inclined manner.

6. The control method for a repair device for APU diffuser blade damage according to claim 1, characterized in that, The method comprises the following specific steps: S1, in the initial state, the three inner top blocks are in the middle position of the chuck top shell (15), the staff places the blade body (2) to be brazed on the placing block (22) of the inner top block, and the two fixing tables (9) are arranged in the middle position of the two adjacent blades of the blade body (2); S2, the servo motor (12) is started, the rotation of the servo motor (12) drives the driving bevel gear (16) to rotate, the bottom bevel gear (18) engaged with the driving bevel gear (16) drives the rotating chuck (14) to rotate, the plane thread (19) arranged at the top of the rotating chuck (14) also rotates, and then the claw (20) engaged with the plane thread (19) drives the rubber top block (21) to move, the outward moving rubber top block (21) gradually abuts against the inner wall of the blade body (2), and the blade body (2) is clamped in the current position. S3, while the servo motor (12) drives the driving bevel gear (16) to rotate, the bottom bevel gear (18) is driven by the driving bevel gear (16) to rotate, so the two driven bevel gears (17) which are engaged with the bottom bevel gear (18) will rotate at the same time, and then drive the connecting rod (25) to rotate, the rotating block (26) arranged at the other end of the connecting rod (25) will drive the inclined block (27) to rotate, the bottom rod (28) fixed at the bottom of the inclined block (27) will drive the rotating cylinder (29) to rotate around the rotating block (26), the rotation of the rotating cylinder (29) will drive the center rod (30) and the rotating table (31) to rotate, the rotating rod (32) arranged on the side wall of the rotating table (31) will rotate; S4, under the drive of the rotating rod (32), the driving bevel gear (37) arranged on the side wall of the rotating rod (32) will drive the driven bevel gear (36) to rotate, the drive rod (35) arranged on the side wall of the driven bevel gear (36) will also rotate, the rotating gear (34) located at the other end of the drive rod (35) will also rotate synchronously, the side teeth (41) engaged with the rotating gear (34) will drive the side baffle (33) to move in the movement groove (38), so as to make the side baffle (33) move transversely and press on the blade body (2), so as to fix the fan blade to be repaired on the blade body (2); S5, start the arc-shaped motor (4), so that the magnetic track (5) drives the back plate (6) and the soldering head (3) to move together, until the soldering head (3) is located directly above the fan blade to be soldered, and then start the soldering head (3), and the fan blade to be repaired on the blade body (2) is soldered and repaired.

Images