Positioning tool for aviation gear precision part machining

Abstract

The invention relates to the technical field of positioning equipment, in particular to a positioning tool for aviation gear precision part machining. Comprising a first operation plate, a second operation plate and a third operation plate, two fixing plates are oppositely arranged on the third operation plate, the bottom end of one fixing plate is fixedly connected with one end of the upper face of the third operation plate, a plurality of clamping and fixing structures are arranged on the fixing plates, and the two ends of the third operation plate are each provided with a connecting pipe. The pipe bodies of the two connecting pipes are each movably sleeved with a supporting frame, the bottom ends of the two supporting frames are fixedly connected with the upward face of the second operation plate, and a rotating disc bearing is arranged on the downward face of the second operation plate. The gear precision part machining device has the beneficial effects that through the multiple clamping structures arranged on the two fixing plates, a gear precision part can be positioned and fixed, the angle of the gear precision part is adjusted by rotating the third operation plate and the second operation plate, multi-angle machining of the gear precision part is facilitated, and the machining efficiency of operators is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning devices, and particularly relates to a positioning tooling for machining aviation gear precision parts. Background Art

[0002] Aviation gears have requirements such as high precision, high stability, and long service life. Different from the gears of other mechanical products, once an aviation gear fails, it will cause more serious accidents. Therefore, the overall requirements for aviation gears are higher.

[0003] Currently, when operating personnel machine aviation precision parts, they often need to use positioning tooling to fix the precision parts, so as to facilitate the processing operations of the operating personnel. However, in the actual use process of the existing positioning tooling, although the basic positioning and fixing effects can be achieved, the positioning and fixing effect on circular gear precision parts is not good. During processing, displacement phenomena are likely to occur, and it is inconvenient to adjust the angle of the gear precision parts after fixing, which is not conducive to the use of the operating personnel, and thus affects the processing efficiency of the operating personnel. Summary of the Invention

[0004] Object of the Invention

[0005] The object of the present invention is to provide a positioning tooling for machining aviation gear precision parts to solve the problems of poor accurate positioning effect on gear precision parts, easy occurrence of displacement phenomena during processing, and being not conducive to the use of operating personnel as mentioned in the above background art. A positioning tooling for machining aviation gear precision parts is provided to realize the conversion of angles and improve the clamping accuracy.

[0006] Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: A positioning tooling for machining aviation gear precision parts includes an operation plate one, an operation plate two, and an operation plate three. Two fixing plates are oppositely arranged on the upward surface of the operation plate three. The bottom end of one of the fixing plates is fixedly connected to one end of the upward surface of the operation plate three. A plurality of clamping structures are arranged on the fixing plate. One connecting pipe is arranged at each end of the operation plate three. A support frame is movably sleeved on the pipe body of each of the two connecting pipes. The bottom ends of the two support frames are fixedly connected to the upward surface of the operation plate two. A turntable bearing is arranged on the downward surface of the operation plate two. The downward surface of the turntable bearing is fixedly connected to the central position of the upward surface of the operation plate one. A plurality of legs are arranged on the downward surface of the operation plate one. The gear meshes with the rack arranged on the side of the operation plate two. By rotating the handwheel arranged on the gear, the operation plate two is driven to rotate and position.

[0008] Preferably, the clamping structure includes a hinge member, with fixing pads provided at both ends of the hinge member. A plurality of springs are equidistantly arranged in a ring between the two fixing pads. On one side of one of the fixing pads away from the hinge member, a plurality of fixing blocks are equidistantly arranged. On the other side of the other fixing pad away from the hinge member, there is a threaded rod which is threadedly arranged through the plate body of the fixing plate. The plurality of springs can make the two fixing pads return to a mutually parallel state when not in use. The plurality of fixing blocks facilitate multi-point fixing of the precision gear parts, and the hinge member enables the plurality of fixing blocks to adjust the cutting angle, which is beneficial to achieving a better fixing effect on the precision gear parts.

[0009] Preferably, the three upper surfaces of the operation plate are provided with chutes. On the plate body of the three plates of the operation plate at the bottom of the chute, a plurality of limiting strips II are equidistantly arranged. A slider adapted to the chute is movably inserted into the chute. The top end of the slider is fixedly connected to the bottom end of one of the fixing plates. A hand-tightening bolt is screwed at one end of the slider away from the fixing plate, and the bottom end of the hand-tightening bolt penetrates through the fixing plate and abuts between the plurality of limiting strips II. The slider drives the fixing plate to freely move back and forth inside the chute, enabling the distance between the two fixing plates to be adjusted, which is convenient for fixing the precision gear parts.

[0010] Preferably, a plurality of limiting strips I are equidistantly arranged in a ring on the connecting pipe, and the orientations of both ends of the limiting strips I are the same as the orientation of the connecting pipe. One end of one of the connecting pipes is provided with a screwing disc. A hand-tightening bolt is screwed on one side of one of the support frames, and one end of the hand-tightening bolt abuts between the plurality of limiting strips I. By screwing the hand-tightening bolt, the position of the connecting pipe can be fixed.

[0011] Preferably, a plurality of racks are equidistantly arranged in a ring on the side of the operation plate II. A protective cover II is movably sleeved outside the operation plate II, and the bottom end of the protective cover II is fixedly connected to the upper surface of the operation plate I. The protective cover II shields the plurality of racks to prevent the staff from being injured by accidentally touching the racks.

[0012] Preferably, a motor is provided on the lower surface of the operation plate I. The motor is fixed to the lower surface of the operation plate I near the corner through an angle iron. The shaft body at the end of the motor movably passes through the plate body of the operation plate I. A gear is provided at the front end of the shaft body at the end of the motor. A protective cover I is movably sleeved outside the gear. The bottom end of the protective cover I is fixedly connected to the upper surface of the operation plate I. One side of the gear movably penetrates through one side of the protective cover I and the protective cover II and meshes with the rack provided on the side of the operation plate II. When the motor drives the gear to rotate, the gear synchronously drives the operation plate II to rotate, enabling the precision gear parts to adjust the angle, which is convenient for processing. The operation plate II can be automatically or manually rotated and positioned.

[0013] The beneficial effects of this application are as follows:

[0014] Through a plurality of clamping structures arranged on two fixing plates, the precision gear parts can be positioned and fixed. By rotating the operating plate three and the operating plate two, the angles of the precision gear parts can be adjusted, making it convenient to process the precision gear parts from multiple angles and improving the processing efficiency of the operator. Brief Description of the Drawings

[0015] Figure 1 It is a front view structural schematic diagram of the present invention;

[0016] Figure 2 It is a top view structural schematic diagram of the present invention;

[0017] Figure 3 It is a top view sectional structural schematic diagram of the present invention;

[0018] Figure 4 It is a rear view structural schematic diagram of the operating plate two of the present invention;

[0019] Figure 5 It is a right view structural schematic diagram of the operating plate three and the chute structure of the present invention;

[0020] Figure 6 Of the present invention Figure 1 Enlarged structural schematic diagram of part A;

[0021] Figure 7 Of the present invention Figure 3 Structural schematic diagram of part B.

[0022] List of reference numerals in the drawings:

[0023] 1. Operating plate one; 2. Leg; 3. Motor; 4. Gear; 5. Protective cover one; 6. Protective cover two; 7. Operating plate two; 8. Rack; 9. Slewing bearing; 10. Support frame; 11. Connecting pipe; 12. Limit strip one; 13. Hand-tightening bolt; 14. Operating plate three; 15. Chute; 16. Slide block; 17. Limit strip two; 18. Fixing plate; 19. Clamping structure; 20. Threaded rod; 21. Fixed pad; 22. Hinge; 23. Spring; 24. Fixed block. Detailed Description of the Invention

[0024] The present invention will be further described below in conjunction with embodiments. The following are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] The specific implementation manner of the present invention will be further described below with reference to the drawings. The same components are denoted by the same reference numerals.

[0026] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the attached drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0027] To make the content of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the attached drawings in the embodiments of the present invention.

[0028] Embodiment 1. To solve the technical problems in the background art, a positioning tooling for the machining of aviation gear precision parts is given as follows:

[0029] Combined with Figures 1-7 As shown, a positioning tooling for the machining of aviation gear precision parts provided by the present utility model invention includes an operation board 1, an operation board 7 and an operation board 14. Two fixing plates 18 are oppositely arranged on the upper surface of the operation board 14. The bottom end of one of the fixing plates 18 is fixedly connected to one end of the upper surface of the operation board 14. A plurality of clamping structures 19 are arranged on the fixing plate 18. One connecting pipe 11 is arranged at each end of the operation board 14. A support frame 10 is movably sleeved on the pipe bodies of the two connecting pipes 11. The bottom ends of the two support frames 10 are fixedly connected to the upper surface of the operation board 7. A turntable bearing 9 is arranged on the lower surface of the operation board 7. The lower surface of the turntable bearing 9 is fixedly connected to the central position of the upper surface of the operation board 1. A plurality of legs 2 are arranged on the lower surface of the operation board 1.

[0030] The gear precision parts are clamped by a plurality of clamping structures 19 arranged on the two fixing plates 18. The operation board 14 can drive the gear precision parts to rotate with the support frame 10 as the fulcrum through the connecting pipes 11 at both ends, which is convenient for machining the gear precision parts at different angles. The operation board 7 and the operation board 1 are connected through the turntable bearing 9, so that the operation board 7 can drive the upper gear precision parts to rotate parallelly, which is convenient for machining the gear precision parts at different angles.

[0031] In this embodiment, the clamping structure 19 includes a hinge 22. Fixed pads 21 are arranged at both ends of the hinge 22. A plurality of springs 23 are annularly and equidistantly arranged between the two fixed pads 21. A plurality of fixing blocks 24 are equidistantly arranged on one side of one of the fixed pads 21 away from the hinge 22. A threaded rod 20 is arranged on the other side of the other fixed pad 21 away from the hinge 22. The threaded rod 20 is arranged through the plate body of the fixing plate 18 in a threaded manner.

[0032] Through the hinge 22 provided between the two fixing pads 21, the angle between the two fixing pads 21 can be adjusted, so that the multiple fixing blocks provided on one of the fixing pads 21 can be adjusted according to the angle of the gear precision part, so that the fixing blocks 24 can better fit the surface of the gear precision part. The multiple fixing blocks 24 are convenient for multi-point fixing of the surface of the gear precision part, and the hinge 22 enables the multiple fixing blocks 24 to adjust the chamfering angle, which is beneficial to achieving a better fixing effect on the gear precision part.

[0033] Embodiment 2: As Figures 1-7 shown, on the basis of the above embodiment, the present embodiment further gives the following content:

[0034] In this embodiment, a chute 15 is provided on the upper surface of the operating plate three 14. A plurality of limiting strips two 17 are equidistantly arranged on the plate body of the operating plate three 14 at the bottom of the chute 15. A slider 16 adapted to the chute 15 is movably inserted into the chute 15. The top end of the slider 16 is fixedly connected to the bottom end of one fixing plate 18. A hand-tightening bolt 13 is screwed at one end of the slider 16 away from the fixing plate 18, and the bottom end of the hand-tightening bolt 13 penetrates through the fixing plate 18 and abuts between the plurality of limiting strips two 17.

[0035] By moving the slider 16 inside the chute 15, the fixing plate 18 provided on the slider 16 is driven to adjust its position, and the position can be adjusted according to the size of the gear precision part, which is convenient for clamping the gear precision part. The hand-tightening bolt 13 provided at one end of the slider 16 is fixed by abutting against the plurality of limiting strips two 17 at the bottom end, so that the slider 16 and the fixing plate 18 are fixed.

[0036] Embodiment 3: As Figures 1-7 shown, on the basis of the above embodiment, the present embodiment further gives the following content:

[0037] In this embodiment, a plurality of limiting strips one 12 are equidistantly arranged in a ring on the connecting pipe 11, and the two ends of the limiting strips one 12 face the same direction as the connecting pipe 11. A screwing disc is provided at one end of one connecting pipe 11. A hand-tightening bolt 13 is screwed on one side of one support frame 10, and one end of the hand-tightening bolt 13 abuts between the plurality of limiting strips one 12.

[0038] Among them, a plurality of racks 8 are equidistantly arranged in a ring on the side of the operating plate two 7. A protective cover two 6 is movably sleeved outside the operating plate two 7, and the bottom end of the protective cover two 6 is fixedly connected to the upper surface of the operating plate one 1.

[0039] By screwing the screwing disc provided at one end of the connecting pipe 11, the operating plate three 14 provided at one end of the connecting pipe 11 can be driven to rotate to adjust the angle of the gear precision part, which is convenient for processing the gear precision part at multiple angles.

[0040] Embodiment 3: As Figures 1-7As shown, on the basis of the above embodiments, the present embodiment further provides the following content:

[0041] In this embodiment, a motor 3 is provided on the lower surface of the first operation board 1. The motor 3 is fixed to the lower surface of the first operation board 1 near the corner position through an angle iron. The end shaft of the motor 3 passes through the board body of the first operation board 1 movably. A gear 4 is provided at the front end of the end shaft of the motor 3. A first protective cover 5 is movably sleeved outside the gear 4, and the bottom end of the first protective cover 5 is fixedly connected to the upper surface of the first operation board 1. One side of the gear 4 passes through the first protective cover 5 and one side of the second protective cover 6 movably, and meshes with a rack 8 provided on the side of the second operation board 7.

[0042] The motor 3 drives the gear 4 provided above the first operation board 1 to rotate. When the gear 4 rotates, it can drive the second operation board 7 connected to it in a meshing manner to rotate, so as to drive the gear precision parts to rotate synchronously, facilitating multi-angle processing of the gear precision parts.

[0043] The working principle and usage process of the present invention:

[0044] In the usage state:

[0045] The first step: According to the size of the gear precision parts, move the fixing plate 18 provided on the slider 16 towards the other fixing plate 18, so that the clamping structures 19 provided on the two fixing plates 18 are close to the side of the gear precision parts. Turn the hand-tightening bolt 13 on the slider 16. When the bottom end of the hand-tightening bolt 13 abuts between multiple second limiting strips 17, the slider 16 and the fixing plate 18 provided on the slider 16 are fixed.

[0046] The second step: Place the gear precision parts between the two fixing plates 18, and turn the threaded rods 20 in multiple clamping structures 19 in sequence, so that the multiple fixing blocks 24 at one end of each of them all abut against the side of the gear precision parts to fix the gear precision parts.

[0047] The third step: When processing the gear precision parts, turn the hand-tightening bolt 13 provided on one side of one support frame 10, and then the gear precision parts can be driven to flip by rotating the screwing disc, so that the position angle changes. When the required angle is adjusted, turn the hand-tightening bolt 13 back so that the bottom end of the hand-tightening bolt 13 abuts between multiple first limiting strips 12 on the connecting pipe 11 to fix the angle of the gear precision parts.

[0048] The fourth step: Start the motor 3. The motor 3 drives the gear 4 to rotate, so that the second operation board 7 connected to the gear 4 in a meshing manner rotates, and the upper gear precision parts rotate together, facilitating the processing of the gear precision parts.

[0049] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

[0050] The following will further illustrate the specific embodiments of the present invention with reference to the accompanying drawings. The same components are denoted by the same reference numerals.

[0051] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0052] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0053] Embodiment 1. To solve the technical problems in the background art, a positioning tooling for machining aviation gear precision parts is given as follows:

[0054] Combined with Figures 1-7 As shown, a positioning tooling for machining aviation gear precision parts provided by the present utility model includes an operation plate 1, an operation plate 7 and an operation plate 14. Two fixing plates 18 are oppositely arranged on the upper surface of the operation plate 14. The bottom end of one fixing plate 18 is fixedly connected to one end of the upper surface of the operation plate 14. A plurality of clamping structures 19 are arranged on the fixing plate 18. One connecting pipe 11 is arranged at each end of the operation plate 14. A support frame 10 is movably sleeved on the pipe bodies of the two connecting pipes 11. The bottom ends of the two support frames 10 are fixedly connected to the upper surface of the operation plate 7. A turntable bearing 9 is arranged on the lower surface of the operation plate 7. The lower surface of the turntable bearing 9 is fixedly connected to the central position of the upper surface of the operation plate 1. A plurality of legs 2 are arranged on the lower surface of the operation plate 1.

[0055] The gear precision parts are clamped by a plurality of clamping structures 19 arranged on the two fixing plates 18. The operation plate 14 can drive the gear precision parts to rotate with the support frame 10 as the fulcrum through the connecting pipes 11 at both ends, which is convenient for machining the gear precision parts at different angles. The operation plate 7 and the operation plate 1 are connected through the turntable bearing 9, so that the operation plate 7 can drive the upper gear precision parts to rotate parallelly, which is convenient for machining the gear precision parts at different angles.

[0056] In this embodiment, the clamping structure 19 includes a hinge member 22. Fixed pads 21 are provided at both ends of the hinge member 22. A plurality of springs 23 are annularly and equidistantly arranged between the two fixed pads 21. A plurality of fixing blocks 24 are equidistantly arranged on one side of one fixed pad 21 away from the hinge member 22. A threaded rod 20 is provided on the other side of the other fixed pad 21 away from the hinge member 22, and the threaded rod 20 is threadedly passed through the plate body of the fixing plate 18.

[0057] Through the hinge member 22 provided between the two fixed pads 21, the angle between the two fixed pads 21 can be adjusted, so that the plurality of fixing blocks arranged on one fixed pad 21 can be adjusted according to the angle of the gear precision part, so that the fixing blocks 24 can better fit the surface of the gear precision part. The plurality of fixing blocks 24 are convenient for multi-point fixing of the surface of the gear precision part, and the hinge member 22 enables the plurality of fixing blocks 24 to adjust the cutting angle, which is beneficial to achieving a better fixing effect on the gear precision part.

[0058] Embodiment Two: As Figures 1-7 shown, on the basis of the above embodiment, this embodiment further gives the following content:

[0059] In this embodiment, a chute 15 is provided on the upper surface of the operation plate three 14. A plurality of limiting strips two 17 are equidistantly arranged on the plate body of the operation plate three 14 at the bottom of the chute 15. A slider 16 adapted to the chute 15 is movably inserted into the chute 15. The top end of the slider 16 is fixedly connected to the bottom end of one fixing plate 18. A hand-tightening bolt 13 is threadedly screwed at one end of the slider 16 away from the fixing plate 18, and the bottom end of the hand-tightening bolt 13 penetrates through the fixing plate 18 and abuts between the plurality of limiting strips two 17.

[0060] By moving the slider 16 inside the chute 15, the position of the fixing plate 18 provided on the slider 16 is adjusted, and the position can be adjusted according to the size of the gear precision part, which is convenient for clamping the gear precision part. The hand-tightening bolt 13 provided at one end of the slider 16 is fixed by abutting the bottom end between the plurality of limiting strips two 17, so that the slider 16 and the fixing plate 18 are fixed.

[0061] Embodiment Three: As Figures 1-7 shown, on the basis of the above embodiment, this embodiment further gives the following content:

[0062] In this embodiment, a plurality of limiting strips one 12 are annularly and equidistantly arranged on the connecting pipe 11, and the orientations of both ends of the limiting strips one 12 are the same as the orientation of the connecting pipe 11. A screwing disc is provided at one end of one connecting pipe 11. A hand-tightening bolt 13 is screwed on one side of one support frame 10, and one end of the hand-tightening bolt 13 abuts between the plurality of limiting strips one 12.

[0063] Among them, a plurality of racks 8 are equidistantly arranged in a ring shape on the side of the second operation board 7. A second protective cover 6 is movably sleeved outside the second operation board 7, and the bottom end of the second protective cover 6 is fixedly connected to the upper surface of the first operation board 1.

[0064] By turning the screwing disc provided at one end of the connecting pipe 11, the third operation board 14 provided at one end of the connecting pipe 11 can be driven to rotate, so as to adjust the angle of the precision gear part, which is convenient for processing the precision gear part at multiple angles.

[0065] Embodiment 3: As Figures 1-7 shown, on the basis of the above embodiment, the following content is further given in this embodiment:

[0066] In this embodiment, a motor 3 is provided on the lower surface of the first operation board 1. The motor 3 is fixed on the lower surface of the first operation board 1 near the corner position through an angle iron. The end shaft of the motor 3 movably passes through the board body of the first operation board 1. A gear 4 is provided at the front end of the end shaft of the motor 3. A first protective cover 5 is movably sleeved outside the gear 4, and the bottom end of the first protective cover 5 is fixedly connected to the upper surface of the first operation board 1. One side of the gear 4 movably penetrates through one side of the first protective cover 5 and the second protective cover 6, and meshes with the rack 8 provided on the side of the second operation board 7.

[0067] The motor 3 drives the gear 4 arranged above the first operation board 1 to rotate. When the gear 4 rotates, the second operation board 7 engaged with it can be driven to rotate, so as to drive the precision gear part to rotate synchronously, which is convenient for processing the precision gear part at multiple angles.

[0068] The working principle and usage process of the present invention:

[0069] In the use state:

[0070] The first step: According to the size of the precision gear part, move the fixing plate 18 provided on the slider 16 towards the other fixing plate 18, so that the clamping structures 19 provided on the two fixing plates 18 are close to the side of the precision gear part. Turn the hand-tightening bolt 13 on the slider 16. When the bottom end of the hand-tightening bolt 13 abuts between the plurality of second limiting strips 17, the slider 16 and the fixing plate 18 provided on the slider 16 are fixed.

[0071] The second step: Place the precision gear part between the two fixing plates 18, and sequentially turn the threaded rods 20 in the plurality of clamping structures 19, so that the plurality of fixing blocks 24 at one end of each of them all abut against the side of the precision gear part, and the precision gear part is fixed.

[0072] Step 3: When machining the precision gear parts, turn the hand-tightening bolt 13 provided on one side of its support frame 10. Then, the precision gear parts can be driven to flip by rotating the screwing disc, so that the position angle is changed. After adjusting to the required angle, screw the hand-tightening bolt 13 back so that the bottom end of the hand-tightening bolt 13 abuts between the multiple first limiting strips 12 on the connecting pipe 11, and the angle of the precision gear parts is fixed.

[0073] Step 4: Start the motor 3. The motor 3 drives the gear 4 to rotate, so that the operation plate two 7 engaged with the gear 4 rotates, and the upper precision gear parts rotate together, facilitating the machining of the precision gear parts.

[0074] Those skilled in the art of the present technology can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used here have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here. The specific embodiments described above have further elaborated on the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning tooling for machining precision parts of aviation gears, characterized in that, it includes an operation plate one (1), an operation plate two (7) and an operation plate three (14). Two fixing plates (18) are oppositely arranged on the upward surface of the operation plate three (14). The bottom end of one of the fixing plates (18) is fixedly connected to one end of the upward surface of the operation plate three (14). A plurality of clamping structures (19) are arranged on the fixing plate (18). One connecting pipe (11) is arranged at each end of the operation plate three (14). A support frame (10) is movably sleeved on the pipe body of each of the two connecting pipes (11). The bottom ends of the two support frames (10) are fixedly connected to the upward surface of the operation plate two (7). A turntable bearing (9) is arranged on the downward surface of the operation plate two (7). The downward surface of the turntable bearing (9) is fixedly connected to the central position of the upward surface of the operation plate one (1). A plurality of legs (2) are arranged on the downward surface of the operation plate one (1). The gear (4) meshes with the rack (8) arranged on the side of the operation plate two (7). By rotating the rocker wheel arranged on the gear (4), the operation plate two (7) is driven to rotate and position.

2. The positioning tooling for machining precision parts of aviation gears according to claim 1, characterized in that, the clamping structure (19) includes a hinge member (22). Fixed pads (21) are arranged at both ends of the hinge member (22). A plurality of springs (23) are annularly and equidistantly arranged between the two fixed pads (21). A plurality of fixing blocks (24) are equidistantly arranged on one side of one of the fixed pads (21) away from the hinge member (22). A threaded rod (20) is arranged on the side of the other fixed pad (21) away from the hinge member (22). The threaded rod (20) is threadedly arranged through the plate body of the fixing plate (18).

3. The positioning tooling for machining precision parts of aviation gears according to claim 2, characterized in that, a chute (15) is arranged on the upward surface of the operation plate three (14). A plurality of limiting strips two (17) are equidistantly arranged on the plate body of the operation plate three (14) at the bottom of the chute (15).

4. The positioning tooling for machining precision parts of aviation gears according to claim 3, characterized in that, a slider (16) adapted to the chute (15) is movably inserted into the chute (15). The top end of the slider (16) is fixedly connected to the bottom end of one of the fixing plates (18). A hand-tightening bolt (13) is screwed at one end of the slider (16) away from the fixing plate (18). And the bottom end of the hand-tightening bolt (13) penetrates through the fixing plate (18) and abuts between a plurality of limiting strips two (17).

5. The positioning tooling for machining precision parts of aviation gears according to claim 4, characterized in that, a plurality of limiting strips one (12) are annularly and equidistantly arranged on the connecting pipe (11). And the orientations of both ends of the limiting strip one (12) are the same as the orientation of the connecting pipe (11). A screwing disc is arranged at one end of one of the connecting pipes (11). A hand-tightening bolt (13) is screwed on one side of one of the support frames (10). And one end of the hand-tightening bolt (13) abuts between a plurality of limiting strips one (12).

6. A positioning tooling for machining precision parts of aviation gears according to claim 1, characterized in that, a plurality of racks (8) are annularly and equidistantly arranged on the side of the second operation plate (7).

7. A positioning tooling for machining precision parts of aviation gears according to claim 6, characterized in that, a second protective cover (6) is movably sleeved outside the second operation plate (7), and the bottom end of the second protective cover (6) is fixedly connected to the upper surface of the first operation plate (1).

8. A positioning tooling for machining precision parts of aviation gears according to claim 5, characterized in that, a motor (3) is provided on the lower surface of the first operation plate (1). The motor (3) is fixed to the lower surface of the first operation plate (1) near the corner position by an angle iron. The end shaft of the motor (3) movably passes through the plate body of the first operation plate (1). A gear (4) is provided at the front end of the end shaft of the motor (3). A first protective cover (5) is movably sleeved outside the gear (4). The bottom end of the first protective cover (5) is fixedly connected to the upper surface of the first operation plate (1). One side of the gear (4) movably penetrates through one side of the first protective cover (5) and the second protective cover (6), and meshes with the rack (8) provided on the side, so as to realize the automatic or manual rotation positioning of the second operation plate (7).

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