Rotary positioning tool for stator blade of outer duct

Abstract

The invention discloses a rotary positioning tool for an outer duct stator blade, which comprises a mounting seat, a vertical plate is arranged on the mounting seat, a connecting shaft is horizontally and rotatably connected to the vertical plate, and a hand-pulling type positioner is fixedly connected to the edge of the top of the vertical plate; the transition plate is arranged on one side of the vertical plate in parallel and connected with the connecting shaft, two limiting holes are symmetrically formed in the positions, corresponding to the two sides of the connecting shaft, of the transition plate, and a positioning head of the hand pulling type positioner extends into the limiting holes and limits the rotating position of the transition plate; the margin plate positioning block is fixed to the side face, away from the vertical plate, of the transition plate, and the top of the margin plate positioning block is vertically connected with a positioning pin; the blade body supporting block is fixed on one side surface of the transition plate; the blade body pressing plate is fixed to one side end of the blade body supporting block and is matched with the blade body supporting block to press and fix the blade body of the stator blade. The stator blade clamping device is simple in structure, convenient to clamp and high in machining efficiency when used in cooperation with a machine tool.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation product processing equipment, and in particular relates to a rotation positioning tool for an outer duct stator blade. Background Art

[0002] The aircraft engine is the heart of the aircraft. The stability, reliability and advancement of the engine depend to a large extent on the assembly level and assembly size. As one of the important components of the aircraft engine, the stator blades are used to rectify and expand the airflow compressed by the rotor blades. Their performance and size requirements are very high. The composite stator blades independently designed and developed in China have the characteristics of high strength, low specific gravity, and corrosion resistance. The use of composite materials to make the outer duct stator blades to replace the original titanium alloy blades has a weight reduction rate of about 50%, improves the engine's thrust-to-weight ratio, and reduces the engine's fuel consumption rate and maintenance costs. This is a major reform. After the outer duct stator blades are formed, the assembly size of the edge plate cannot meet the design requirements, which increases the edge plate processing allowance. Mechanical processing is required to ensure the assembly size, but there is currently no suitable machine tool fixture to clamp the stator blades, and the blades cannot be positioned and rotated on the vertical milling machine, which reduces the machining efficiency.

[0003] Therefore, how to provide an installation and positioning tool that can position and rotate blades on a vertical milling machine is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the present invention provides a rotation positioning tool for an external duct stator blade, which can be used to position and rotate the blade on a vertical milling machine, thereby facilitating machining and trimming the size of the stator blade and facilitating later assembly.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a rotation positioning tool for an outer duct stator blade, comprising:

[0006] A mounting seat, wherein a vertical plate is provided on the mounting seat, a connecting shaft is connected to the vertical plate for horizontal rotation, and a hand-pull type positioner is fixedly connected to the top edge of the vertical plate;

[0007] A transition plate, the transition plate is arranged in parallel on one side of the vertical plate and connected to the connecting shaft, two limiting holes are symmetrically provided on the transition plate corresponding to the two sides of the connecting shaft, and the positioning head of the hand-pull positioner extends into the limiting holes and limits the rotation position of the transition plate;

[0008] An edge plate positioning block, the edge plate positioning block is fixed on a side surface of the transition plate away from the vertical plate, and a positioning pin is vertically connected to the top of the edge plate positioning block;

[0009] A blade support block, wherein the blade support block is fixed on one side surface of the transition plate;

[0010] The blade body pressing plate is fixed to one side end of the blade body supporting block and cooperates with the blade body supporting block to press and fix the blade body of the stator blade.

[0011] The beneficial effects of the present invention are as follows: the present invention uses a mounting base connected to a machine tool, the transition plate can be rotated to adjust its position relative to the standing plate, the stator blades are positioned by the edge plate positioning block, the blade body support block and the blade body pressure plate, and a one-point two-side positioning reference is adopted, the stator blades are clamped stably, the transition plate can be rotated during the machining process to change the machining position of the stator blades, and the rotation position of the transition plate is limited by a hand-pull positioner, which is easy to use and has high machining efficiency.

[0012] Preferably, an inner edge plate and an outer edge plate are fixed at both ends of the blade body, a positioning hole is provided on the outer edge plate, the positioning pin is adapted to be installed in the positioning hole, the outer edge plate abuts against the top of the edge plate positioning block, and the positioning pin is provided with a locking nut for locking the outer edge plate.

[0013] The resulting technical effect is: the positioning holes on the stator blades are used to realize the assembly positioning of the stator blades on the fixture, with one point and two sides as the positioning reference, the point is the positioning pin, the two sides are the outer edge plate surface and the blade body surface, and the locking nut is used to realize the locking of the outer edge plate.

[0014] Preferably, the blade support block and the edge plate positioning block are distributed at the two end edges of the transition plate, one side end of the blade support block is provided with a crimping concave surface, and the side of the blade pressure plate close to the crimping concave surface is provided with a crimping convex surface, the crimping concave surface cooperates with the crimping convex surface to crimp the blade, and the blade pressure plate screws are fixed to one side end of the blade support block.

[0015] The resulting technical effect is that the crimping concave surface and the crimping convex surface are specially designed for the blade shape of the stator blade, and can clamp the stator blade more stably.

[0016] Preferably, the vertical plate is horizontally provided with a through hole, a shaft sleeve is fixedly installed in the through hole, the connecting shaft is rotatably connected in the shaft sleeve, an external thread is provided on the outer wall of one end of the connecting shaft, an adjusting round nut for limiting the rotation of the connecting shaft is threaded on the external thread, an axial hole is provided on the transition plate, the connecting shaft is rotatably located in the axial hole, the other end of the connecting shaft is fixedly connected with a positioning plate, a pin hole is provided on the positioning plate, a limiting hole is coaxially arranged on the transition plate corresponding to the pin hole, and pins are installed in the pin hole and the limiting hole.

[0017] The resulting technical effect is: the transition plate uses pins to achieve synchronous rotation with the connecting shaft, and uses adjusting round nuts to lock the position of the connecting shaft, thereby achieving position locking of the stator blades on the machine tool to complete the machining process.

[0018] Preferably, the adjusting round nut and the transition plate are distributed on both sides of the vertical plate, and a washer is sleeved on the connecting shaft, and the washer is located between the adjusting round nut and the vertical plate.

[0019] The technical effect produced thereby is: the adjusting round nut is tightened on the connecting shaft, the washer abuts against the vertical plate, and the rotation locking of the connecting shaft is achieved by squeezing the washer and the vertical plate.

[0020] Preferably, a sleeve is installed in the limiting hole, and the positioning head of the hand-pull type positioner extends into the sleeve to position the transition plate.

[0021] The resulting technical effect is: utilizing the sleeve to reduce the wear of the positioning head on the transition plate, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a rotation positioning tool for an outer duct stator blade of the present invention Figure 1 ;

[0023] Figure 2 A schematic diagram of a rotation positioning tool for an outer duct stator blade of the present invention Figure 2 ;

[0024] Figure 3 It is a cross-sectional view of a rotation positioning tool for an outer duct stator blade of the present invention;

[0025] Figure 4 The structure diagram of the stator blade used in the present invention;

[0026] Figure 5 This is an application diagram of a rotation positioning tool for an outer duct stator blade of the present invention.

[0027] 1 mounting seat, 101 vertical plate, 2 connecting shaft, 3 hand-pull positioner, 4 transition plate, 5 positioning hole, 6 edge plate positioning block, 7 positioning pin, 8 locking nut, 9 blade support block, 10 blade pressure plate, 11 stator blade, 1101 blade, 1102 outer edge plate, 1103 inner edge plate, 1104 positioning hole, 1105 positioning surface, 12 screw, 13 washer, 14 adjusting round nut, 15 sleeve, 16 positioning plate, 17 pin, 18 sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See the attached Figures 1 to 5 According to an embodiment of the present invention, a rotation positioning tool for an outer duct stator blade comprises:

[0030] A mounting base 1, on which a vertical plate 101 is provided, on which a connecting shaft 2 is horizontally rotatably connected, and a hand-pull type positioner 3 is horizontally fixedly connected to the top edge of the vertical plate 101;

[0031] The transition plate 4 is arranged in parallel on one side of the vertical plate 101 and connected to the connecting shaft 2. Two limiting holes 5 are symmetrically arranged on the transition plate 4 corresponding to the two sides of the connecting shaft 2. The positioning head of the hand-pull type positioner 3 extends into the limiting hole 5 and limits the rotation position of the transition plate 4. When the workpiece is processed and reversed, it is only necessary to rotate the transition plate without disassembly;

[0032] The edge plate positioning block 6 is fixed on the side surface of the transition plate 4 away from the vertical plate 101. The top of the edge plate positioning block 6 is vertically connected with a positioning pin 7. The edge plate positioning block can locate the positioning surface 1105 on the outer edge plate;

[0033] A blade support block 9, which is fixed on one side of the transition plate 4;

[0034] The blade body pressing plate 10 is fixed to one side end of the blade body supporting block 9 and cooperates with the blade body supporting block to press and fix the blade body 1101 of the stator blade 11, so as to realize the clamping reference positioning of one point on two sides.

[0035] In other embodiments, an inner edge plate 1103 and an outer edge plate 1102 are fixed at both ends of the blade body 1101, a positioning hole 1104 is provided on the outer edge plate 1102, a positioning pin 7 is adapted to be installed in the positioning hole 1104, the outer edge plate 1102 abuts against the top of the edge plate positioning block 6, and a locking nut 8 for locking the outer edge plate is provided on the positioning pin 7, and the locking nut can lock the position of the outer edge plate on the edge plate positioning block.

[0036] In other specific embodiments, the blade support block 9 and the edge plate positioning block 6 are distributed at the two end edges of the transition plate 4 to adapt to the slender structure of the stator blades. A crimping concave surface is provided on one side end of the blade support block 9, and a crimping convex surface is provided on the side of the blade pressure plate 10 close to the crimping concave surface. The crimping concave surface and the crimping convex surface cooperate to crimp the blade 1101. The crimping shape is adapted to better clamp the stator blades. The blade pressure plate 10 is fixed to one side end of the blade support block 9 by screws 12.

[0037] In other specific embodiments, a through hole is horizontally opened on the vertical plate 101, and a shaft sleeve 15 is fixedly installed in the through hole. The connecting shaft 2 is rotatably connected in the shaft sleeve 15. An external thread is provided on the outer wall of one end of the connecting shaft 2, and an adjusting round nut 14 for limiting the rotation of the connecting shaft is threaded on the external thread. An axial hole is provided on the transition plate 4, and the connecting shaft 2 is rotatably located in the axial hole. A positioning plate 16 is fixedly connected to the other end of the connecting shaft 2, and a pin hole is provided on the positioning plate 16. A limiting hole is coaxially arranged corresponding to the pin hole on the transition plate 4, and pins 17 are installed in the pin hole and the limiting hole, and the pins are used to achieve the synchronous rotation effect of the transition plate and the connecting shaft.

[0038] In some other specific embodiments, the adjusting round nut 14 and the transition plate 4 are distributed on both sides of the vertical plate 101 , and a washer 13 is sleeved on the connecting shaft 2 , and the washer 13 is located between the adjusting round nut 14 and the vertical plate 101 .

[0039] In other embodiments, a sleeve 18 is installed in the limiting hole 5, and the positioning head of the hand-pull positioner 3 extends into the sleeve 18 and positions the transition plate 4. Since the limiting hole is colinear with the axis of the connecting shaft, that is, the transition plate only needs to be rotated 180 degrees to achieve the positioning coordination between the hand-pull positioner and the limiting hole and complete the end replacement processing of the stator blade. Specific implementation method:

[0041] When in use, fix the tool on the machine tool, remove the blade pressure plate 10, accurately install the stator blade on the tool through the positioning pin 7, the edge plate positioning block 6 and the blade support block 9, place the blade pressure plate 10 on the blade, and tighten the locking nut 8 and the screw.

[0042] Insert the positioning head of the hand-pull positioner 3 into the sleeve 18 for positioning, tighten the adjusting round nut 14, and use the CNC program to process the outer edge plate in the vertical machining center. After completion, loosen the adjusting round nut 14, rotate the transition plate 180°, insert the hand-pull positioner 3 into the corresponding sleeve for positioning again, tighten the adjusting round nut 14, and then the inner edge plate can be processed.

[0043] As for the device and the method of use disclosed in the embodiment, since they correspond to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotation positioning tool for an outer duct stator blade, characterized in that: include: A mounting seat (1), wherein a vertical plate (101) is provided on the mounting seat (1), a connecting shaft (2) is horizontally rotatably connected to the vertical plate (101), and a hand-pull type positioner (3) is fixedly connected to the top edge of the vertical plate (101); A transition plate (4), the transition plate (4) being arranged in parallel on one side of the vertical plate (101) and connected to the connecting shaft (2), the transition plate (4) being symmetrically provided with two limiting holes (5) corresponding to the two sides of the connecting shaft (2), the positioning head of the hand-pull type positioner (3) extending into the limiting holes (5) and limiting the rotation position of the transition plate (4); An edge plate positioning block (6), the edge plate positioning block (6) being fixed on a side surface of the transition plate (4) away from the vertical plate (101), and a positioning pin (7) being vertically connected to the top of the edge plate positioning block (6); A blade support block (9), wherein the blade support block (9) is fixed on a side surface of the transition plate (4); A blade body pressure plate (10), wherein the blade body pressure plate (10) is fixed to one side end of the blade body support block (9) and cooperates with the blade body support block to press and fix the blade body (1101) of the stator blade (11).

2. A rotation positioning tool for an outer duct stator blade according to claim 1, characterized in that: An inner edge plate (1103) and an outer edge plate (1102) are fixed at both ends of the blade body (1101); a positioning hole (1104) is provided on the outer edge plate (1102); the positioning pin (7) is adapted to be installed in the positioning hole (1104); the outer edge plate (1102) abuts against the top of the edge plate positioning block (6); and a locking nut (8) for locking the outer edge plate is provided on the positioning pin (7).

3. A rotation positioning tool for an outer duct stator blade according to claim 2, characterized in that: The blade support block (9) and the edge plate positioning block (6) are distributed at the two end edges of the transition plate (4); a crimping concave surface is provided at one side end of the blade support block (9); a crimping convex surface is provided at a side of the blade pressure plate (10) close to the crimping concave surface; the crimping concave surface cooperates with the crimping convex surface to crimp the blade (1101); and the blade pressure plate (10) is screwed to one side end of the blade support block (9).

4. The rotation positioning tool for an outer duct stator blade according to claim 1, characterized in that: The vertical plate (101) is provided with a through hole horizontally, a shaft sleeve (15) is fixedly installed in the through hole, the connecting shaft (2) is rotatably connected in the shaft sleeve (15), an outer thread is provided on the outer wall of one end of the connecting shaft (2), an adjusting round nut (14) for limiting the rotation of the connecting shaft is threadedly connected to the outer thread, an axial hole is provided on the transition plate (4), the connecting shaft (2) is rotatably located in the axial hole, a positioning plate (16) is fixedly connected to the other end of the connecting shaft (2), a pin hole is provided on the positioning plate (16), a limiting hole is coaxially arranged on the transition plate (4) corresponding to the pin hole, and a pin (17) is installed in the pin hole and the limiting hole.

5. A rotation positioning tool for an outer duct stator blade according to claim 4, characterized in that: The adjusting round nut (14) and the transition plate (4) are distributed on both sides of the vertical plate (101); a washer (13) is sleeved on the connecting shaft (2); and the washer (13) is located between the adjusting round nut (14) and the vertical plate (101).

6. A rotation positioning tool for an outer duct stator blade according to claim 1, characterized in that: A sleeve (18) is installed in the limiting hole (5), and the positioning head of the hand-pull positioner (3) extends into the sleeve (18) and positions the transition plate (4).

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