Index plate for turbine disk mortise broaching machine

Abstract

The present application relates to the technical field of turbine disc processing, and specifically discloses a turbine disc mortise broaching machine tool index plate, a fixed shell is fixedly installed on the top of the mounting flange, a rotating shell is rotatably installed in the fixed shell, an envelope is fixedly installed on the top of the rotating shell, a turbine disc body is clamped on the surface of the envelope, a rotating shaft A is rotatably connected to the inner bottom wall of the fixed shell, a ratchet mechanism and a gear mechanism are respectively provided on the outer side of the rotating shaft A, the rack is driven to move horizontally in the sliding groove through the stretching of the electric push rod, the rack drives the gear disc and the rotating shaft A to rotate, the teeth on the rack are relatively short, the extension control stroke of the electric push rod is matched with the rack, the angle of rotation of the gear disc is six degrees each time the rack expands outward once, the ratchet disc also rotates a tooth gap at the same time, the torsional spring immediately controls the pawl head to be in the tooth gap of the ratchet disc, and the rotating rotating shaft A is locked, so that the purpose of preventing accidental rotation of the locking index plate is achieved.

Description

Technical Field

[0001] This invention relates to the field of turbine disk machining technology, and in particular to an indexing plate for a turbine disk tenon and groove broaching machine. Background Technology

[0002] The turbine disk is a crucial component of aerospace engines, interconnecting with the corresponding shafts and blades to form the engine's rotor. Turbine disks must operate for extended periods in harsh environments characterized by high speed, high temperature, and high pressure. Therefore, turbine disks are typically made of high-strength, heat-resistant materials. The structural design of turbine disks is also quite complex, particularly the fir-tree-shaped straight-tooth tenon joints, which have a sophisticated structure and require high manufacturing precision.

[0003] The turbine disk has a large number of tenons on the outside, which are evenly distributed. Machine tools are needed to cut them. To ensure that the spacing between each tenon is equal, an indexing plate is used.

[0004] Existing technology discloses a vertical / horizontal dual-purpose indexing plate. The existing vertical / horizontal dual-purpose indexing plates have fixed hole spacing. When the size of the T-slot of the machine tool's worktable does not match the size of the mounting holes of the vertical / horizontal dual-purpose indexing plate, the only solution is to add a machine tool pressure plate, etc. While this solves the problem, installation is time-consuming, involves numerous procedures, has low aesthetic appeal, poor stability, and is prone to interference with other equipment. The present invention provides a vertical / horizontal dual-purpose indexing plate, including a base, a main body fixedly connected to the base, an indexing chuck mounted on the main body, and a positioning part connected to the indexing chuck on the side of the main body; the main body is provided with a worm gear, through which a crank is provided; the base has a first upright fixedly connected to it, the first upright being vertically disposed on the side of the base; the base has a second upright movably connected to it, at least a portion of the second upright corresponding to the first upright on the same side of the base.

[0005] The aforementioned indexing plate is adjusted by hand, which has the following drawbacks: if an outsider accidentally touches the crank handle, the indexing plate will rotate, resulting in inaccurate angles. Therefore, there is no locking device for the indexing plate to solve this problem. At the same time, the precision of hand-crank adjustment is difficult to control, resulting in inconsistent tenon and groove spacing on the outer side of the turbine disc. Therefore, a locking device for adjusting the rotation angle of the indexing plate is needed to solve this problem. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems existing in the indexing plates of existing machine tools, the present invention provides an indexing plate for a turbine disk tenoning broaching machine tool, which has the advantages of locking the indexing plate to prevent accidental rotation and accurately controlling the rotation angle of the indexing plate.

[0007] The technical solution of the present invention: a turbine disk tenoning broaching machine indexing plate, including a mounting flange, a fixed shell fixedly mounted on the top of the mounting flange, a rotating shell rotatably mounted inside the fixed shell, a sealing shell fixedly mounted on the top of the rotating shell, a turbine disk body clamped on the surface of the sealing shell, a rotating shaft A rotatably connected to the inner bottom wall of the fixed shell, a ratchet mechanism and a gear mechanism respectively fitted on the outer side of the rotating shaft A, the ratchet mechanism being located below the gear mechanism, the ratchet mechanism being used to restrict the rotating shaft A to rotate only in one direction, the gear mechanism being used to control the rotating shaft A to rotate on its own after being restricted by the ratchet mechanism, a locking mechanism being provided inside the fixed shell, the locking mechanism being used to lock the position of the rotating shell, and a clamping mechanism being provided inside the rotating shell, the clamping mechanism being used to lock and clamp the inner diameter of the turbine disk body.

[0008] Preferably, the top of the inner wall of the fixed shell is provided with an annular opening A, and the bottom of the outer wall of the rotating shell is provided with an annular opening B. The rotating shell is inserted into the annular opening A of the fixed shell through the annular opening B. The rotating shell is rotatably connected to the fixed shell through the annular opening A and the annular opening B. The top of the rotating shaft A is fixedly installed to the bottom of the fixed shell.

[0009] Preferably, the ratchet mechanism includes a ratchet disc fixedly mounted on the outside of the rotating shaft A, four evenly distributed pawl heads meshing around the ratchet disc, and a connecting shaft rotatably connected to the end of each pawl head away from the ratchet disc. The bottom of the connecting shaft is fixedly connected to the bottom wall of the fixed housing, and a torsion spring is mounted on the outside of the connecting shaft. One end of the torsion spring passes through the surface of the pawl head, and the other end of the torsion spring passes through the outer wall of the connecting shaft.

[0010] Preferably, the gear mechanism includes a gear disk movably fitted on the outside of the rotating shaft A. The inner wall of the gear disk has an installation groove, and a push spring is provided inside the installation groove. A T-shaped clamp is fixedly installed on the other end of the push spring. A limit ring is movably fitted on the outside of the T-shaped clamp. The limit ring is fixedly installed at the opening of the installation groove. A groove corresponding to the T-shaped clamp is provided on the outside of the rotating shaft A. An annular groove A communicating with the groove is provided on the outside of the T-shaped clamp.

[0011] Preferably, the side of the gear disk is engaged with a rack, the side of the rack is fixedly installed with the output end of the electric push rod, the electric push rod is fixedly installed on the top of the support plate, the two ends of the support plate are fixedly connected to the inner wall of the fixed shell, and the surface of the support plate is provided with a sliding groove corresponding to the rack, and the rack slides in the sliding groove through the slider at its bottom.

[0012] Preferably, the locking mechanism includes a frame fixedly mounted on the inner bottom wall of the fixed housing, a sliding strip slidably connected inside the frame, a groove formed at the bottom of the sliding strip, a push spring fixedly mounted inside the groove, a trapezoidal hole formed inside the sliding strip, a trapezoidal block slidably mounted on the side of the trapezoidal hole, the side of the trapezoidal block being fixedly connected to the output end of a cylinder, the cylinder being fixedly connected to the side of the frame, an extension rod fixedly mounted at the top of the sliding strip, a locking plate fixedly mounted at the top of the extension rod, and an annular groove B corresponding to the extension rod and the locking plate formed at the bottom of the rotating housing.

[0013] Preferably, the top of the frame has an opening corresponding to the sliding bar. The displacement of the trapezoidal block squeezes the sliding bar through the trapezoidal hole and causes it to slide down. The annular groove B is composed of an annular horizontal groove and an annular vertical groove. The cross-section of the two grooves is T-shaped. The locking piece is located in the annular horizontal groove, and the extension rod is located in the annular horizontal groove. The thickness of the locking piece is less than the depth of the annular horizontal groove.

[0014] Preferably, the clamping mechanism includes a rotating shaft B fixedly installed between the center of the rotating shell and the center of the sealing shell. A disc is rotatably connected to the outer side of the rotating shaft B via a bearing. A conical toothed ring is fixedly installed at the bottom of the disc. A number of bevel gears are meshed at the bottom of the conical toothed ring. The axis of one of the bevel gears is fixedly connected to the output end of the drive motor. The bottom of the drive motor is fixedly connected to the inner bottom wall of the rotating shell.

[0015] Preferably, the top of the disc is provided with a helical toothed groove, and a number of toothed plates are engaged with the top of the disc through the helical toothed groove. A slider is fixedly installed on the top of the toothed plate. Limiting grooves are provided on both sides of the slider. A slider groove corresponding to the slider is provided on the surface of the shell. The slider groove is an open shape that runs vertically through the top and bottom, and a limiting strip corresponding to the limiting groove is fixedly installed on the inner wall of the slider groove.

[0016] Preferably, a vertical rod is fixedly installed on the top of the slider, a deep groove is formed on the side of the vertical rod, the top of the deep groove is open, a sealing plate is detachably installed on the top of the vertical rod by bolts, a sliding rod is fixedly installed on the inner bottom wall of the deep groove, the top of the sliding rod abuts against the lower surface of the sealing plate, a pressure head is slidably fitted on the outer side of the sliding rod, the end of the pressure head away from the sliding rod extends to the outer side of the vertical rod, and the bottom of the extended end of the pressure head is provided with a slope, a push spring is provided between the pressure head and the sealing plate, and the push spring is fitted on the outer side of the sliding rod.

[0017] The present invention has the following beneficial effects:

[0018] (1) The rack is driven to move laterally in the slide groove by the extension of the electric push rod. The rack will drive the gear disk and the rotating shaft A to rotate. The teeth on the rack are set to be short. The extension and retraction control stroke of the electric push rod is matched with the rack. Each time the rack slides outward, the gear disk rotates by six degrees each time. At the same time, the ratchet disk will also rotate one tooth. The torsion spring immediately controls the pawl head to abut against the tooth of the ratchet disk, and then locks the rotating shaft A, thus achieving the purpose of locking the indexing plate to prevent accidental rotation.

[0019] Conversely, when the electric actuator pulls the rack back, the ratchet disc is locked by the pawl head, and the shaft A will not rotate. However, the gear disc is affected by the tension, and the T-shaped chuck will retract into the mounting slot, thus unlocking the gear disc from the shaft A. In this way, the electric actuator ensures that the shaft A rotates when the rack goes forward and cannot rotate when the rack returns. This process repeats, and the gear disc and shaft A will rotate six degrees each time, which in turn drives the external turbine disc to rotate, achieving the purpose of precisely controlling the rotation angle of the indexing plate.

[0020] (2) The extension of the electric push rod will eventually cause the rotating shell to rotate in the fixed shell. A locking mechanism is set in the fixed shell. An annular groove B is opened at the bottom of the fixed shell. The sliding rod and the pressure head in the locking mechanism extend into the annular groove B. When not locked, the upward spring pushes the sliding bar, the extension rod and the locking plate to move upward, so that the locking plate does not contact the inner bottom wall of the annular groove B. When locked, the cylinder output end extends and pushes the trapezoidal block to insert into the trapezoidal hole. Using the inclined surface of the trapezoid, the trapezoidal block will squeeze the sliding bar to move downward. Then the locking plate will press tightly against the inner bottom wall of the annular groove B to lock the rotating shell and prevent accidental rotation that would result in inaccurate angle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention after removing the mounting flange and turbine disk body;

[0023] Figure 3 For the present invention Figure 1 Schematic diagram of the mid-section structure;

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the mid-section structure;

[0025] Figure 5 This is a schematic diagram of the internal structure of the fixed shell of the present invention;

[0026] Figure 6 This is a schematic diagram of the ratchet mechanism structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the gear mechanism and ratchet mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the gear mechanism structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the gear disk structure of the present invention;

[0030] Figure 10 This is an exploded view of the gear disk and shaft A structure of the present invention;

[0031] Figure 11 This is a schematic diagram of the locking mechanism structure of the present invention;

[0032] Figure 12 This is an exploded view of the locking mechanism of the present invention;

[0033] Figure 13 This is a cross-sectional view of the locking mechanism of the present invention;

[0034] Figure 14 This is a side view of the clamping mechanism of the present invention.

[0035] Figure 15 This is a bottom view schematic diagram of the clamping mechanism of the present invention;

[0036] Figure 16 This is a schematic diagram of the structure of the vertical rod of the present invention.

[0037] The labels in the attached diagram are:

[0038] 100-Mounting flange; 200-Fixed housing; 300-Rotating housing; 400-Sealing housing; 500-Turbine disc body; 600-Rotating shaft A; 700-Ratchet mechanism; 800-Gear mechanism; 900-Locking mechanism; 1000-Clamping mechanism;

[0039] 701-Ratchet disc; 702-Pawl head; 703-Connecting shaft; 704-Torsion spring;

[0040] 801-Gear disk; 802-Mounting groove; 803-Push spring; 804-T-type clamp; 805-Limit ring; 806-Clip groove; 807-Ring groove A; 808-Rack; 809-Electric push rod; 810-Support plate; 811-Slide groove;

[0041] 901-Frame; 902-Sliding bar; 903-Groove; 904-Push spring; 905-Trapezoidal hole; 906-Trapezoidal block; 907-Cylinder; 908-Extension rod; 909-Locking piece; 910-Ring groove B;

[0042] 1001-Shaft B; 1002-Disc; 1003-Conical Gear Ring; 1004-Bevel Gear; 1005-Drive Motor; 1006-Helical Gear Groove; 1007-Gear Plate; 1008-Slider; 1009-Limiting Groove; 1010-Slider Groove; 1011-Vertical Rod; 1012-Deep Groove; 1013-Slide Rod; 1014-Pressure Head; 1015-Push Spring; 1016-Sealing Plate. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0044] Please see Figure 1-4 The indexing plate of the turbine disk tenoning broaching machine includes a mounting flange 100 for docking with the machine tool; a fixed shell 200 is fixedly installed on the top of the mounting flange 100, and a rotating shell 300 is rotatably installed inside the fixed shell 200. The top of the inner wall of the fixed shell 200 has an annular opening A, and the bottom of the outer wall of the rotating shell 300 has an annular opening B. The rotating shell 300 is inserted into the annular opening A of the fixed shell 200 through the annular opening B. The rotating shell 300 is rotatably connected to the fixed shell 200 through the annular openings A and B. A sealing shell 400 is fixedly installed on the top of the rotating shell 300, and a turbine disk body 500 is clamped on the surface of the sealing shell 400. The rotating shell 300 can rotate the turbine disk body 500, realizing the function of the indexing plate.

[0045] Please see Figure 1-4 A rotating shaft A600 is rotatably connected to the inner bottom wall of the fixed housing 200, and the top of the rotating shaft A600 is fixedly installed to the bottom of the fixed housing 200. A ratchet mechanism 700 and a gear mechanism 800 are respectively mounted on the outer side of the rotating shaft A600. The ratchet mechanism 700 is located below the gear mechanism 800. The ratchet mechanism 700 is used to restrict the rotating shaft A600 to rotate in only one direction. The gear mechanism 800 is used to control the rotating shaft A600 to rotate on its own after being restricted by the ratchet mechanism 700. A locking mechanism 900 is provided inside the fixed housing 200. The locking mechanism 900 is used to lock the rotating housing 300 in position. A clamping mechanism 1000 is provided inside the rotating housing 300. The clamping mechanism 1000 is used to lock and clamp the inner diameter of the turbine disk 500.

[0046] Please see Figure 5-6The ratchet mechanism 700 includes a ratchet disc 701 fixedly mounted on the outside of the rotating shaft A600. Four evenly distributed pawl heads 702 are engaged around the ratchet disc 701. A connecting shaft 703 is rotatably connected to the end of the pawl head 702 away from the ratchet disc 701. The bottom of the connecting shaft 703 is fixedly connected to the inner bottom wall of the fixed housing 200. A torsion spring 704 is mounted on the outside of the connecting shaft 703. One end of the torsion spring 704 is inserted into the surface of the pawl head 702, and the other end of the torsion spring 704 is inserted into the outer wall of the connecting shaft 703.

[0047] Please see Figure 7-8 The gear mechanism 800 includes a gear disk 801 movably mounted on the outside of the rotating shaft A600. The inner wall of the gear disk 801 has a mounting groove 802. A push spring 803 is installed inside the mounting groove 802. A T-shaped clamp 804 is fixedly mounted on the other end of the push spring 803. A limit ring 805 is movably mounted on the outside of the T-shaped clamp 804. The limit ring 805 is fixedly installed at the opening of the mounting groove 802. A groove 806 corresponding to the T-shaped clamp 804 is opened on the outside of the rotating shaft A600. An annular groove A807 communicating with the groove 806 is opened on the outside of the T-shaped clamp 804.

[0048] Please see Figure 9-10 A rack 808 meshes with the side of the gear disk 801. The side of the rack 808 is fixedly installed with the output end of the electric push rod 809. The electric push rod 809 is fixedly installed on the top of the support plate 810. Both ends of the support plate 810 are fixedly connected to the inner wall of the fixed shell 200. The surface of the support plate 810 is provided with a sliding groove 811 corresponding to the rack 808. The rack 808 slides in the sliding groove 811 through the slider at its bottom.

[0049] Please see Figure 11-13 The locking mechanism 900 includes a frame 901 fixedly installed on the inner bottom wall of the fixed housing 200. A sliding strip 902 is slidably connected inside the frame 901. A groove 903 is provided at the bottom of the sliding strip 902. An upward push spring 904 is fixedly installed inside the groove 903. A trapezoidal hole 905 is provided inside the sliding strip 902. A trapezoidal block 906 is slidably installed on the side of the trapezoidal hole 905. The side of the trapezoidal block 906 is fixedly connected to the output end of the cylinder 907. The cylinder 907 is fixedly connected to the side of the frame 901. An extension rod 908 is fixedly installed at the top of the sliding strip 902. A locking piece 909 is fixedly installed at the top of the extension rod 908. An annular groove B910 corresponding to the extension rod 908 and the locking piece 909 is provided at the bottom of the rotating housing 300.

[0050] Please see Figure 11-13The top of the frame 901 has an opening corresponding to the sliding bar 902. The displacement of the trapezoidal block 906 squeezes the sliding bar 902 through the trapezoidal hole 905 and pushes it down. The annular groove B910 is composed of an annular horizontal groove and an annular vertical groove. The cross-section of the two grooves is T-shaped. The locking piece 909 is located in the annular horizontal groove, and the extension rod 908 is located in the annular horizontal groove. The thickness of the locking piece 909 is less than the depth of the annular horizontal groove.

[0051] Please see Figure 14-15 The clamping mechanism 1000 includes a rotating shaft B1001 fixedly installed between the center of the rotating shell 300 and the sealing shell 400. A disc 1002 is rotatably connected to the outer side of the rotating shaft B1001 via a bearing. A conical toothed ring 1003 is fixedly installed at the bottom of the disc 1002. A number of bevel gears 1004 are meshed at the bottom of the conical toothed ring 1003. The axis of one of the bevel gears 1004 is fixedly connected to the output end of the drive motor 1005. The bottom of the drive motor 1005 is fixedly connected to the inner bottom wall of the rotating shell 300.

[0052] Please see Figure 14-15 The top of the disc 1002 is provided with a helical toothed groove 1006. A number of toothed plates 1007 are engaged with the top of the disc 1002 through the helical toothed groove 1006. A slider 1008 is fixedly installed on the top of the toothed plate 1007. Limiting grooves 1009 are provided on both sides of the slider 1008. The surface of the cover 400 is provided with a slider groove 1010 corresponding to the slider 1008. The slider groove 1010 is an open shape that runs vertically through the top and bottom. A limiting strip corresponding to the limiting groove 1009 is fixedly installed on the inner wall of the slider groove 1010.

[0053] Please see Figure 16 A vertical rod 1011 is fixedly installed on the top of the slider 1008. A deep groove 1012 is opened on the side of the vertical rod 1011. The top of the deep groove 1012 is open. A sealing plate 1016 is detachably installed on the top of the vertical rod 1011 by bolts. A sliding rod 1013 is fixedly installed on the inner bottom wall of the deep groove 1012. The top of the sliding rod 1013 abuts against the lower surface of the sealing plate 1016. A pressure head 1014 is slidably fitted on the outer side of the sliding rod 1013. The end of the pressure head 1014 away from the sliding rod 1013 extends to the outer side of the vertical rod 1011. The bottom of the extended end of the pressure head 1014 is provided with a slope. A push spring 1015 is provided between the pressure head 1014 and the sealing plate 1016. The push spring 1015 is fitted on the outer side of the sliding rod 1013.

[0054] Working principle: During use, the extension of the electric push rod 809 drives the rack 808 to move laterally in the slide groove 811. The rack 808 then drives the gear disk 801 and the rotating shaft A600 to rotate. The teeth on the rack 808 are relatively short. The extension and retraction control stroke of the electric push rod 809 is matched with that of the rack 808. Each time the rack 808 slides outward, the gear disk 801 rotates by six degrees. At the same time, the ratchet disk 701 also rotates one tooth. The torsion spring 704 immediately controls the pawl head 702 to abut against the tooth of the ratchet disk 701, and then locks the rotating shaft A600, thus achieving the purpose of locking the indexing plate to prevent accidental rotation.

[0055] Conversely, when the electric push rod 809 pulls the rack 808 back, the ratchet disc 701 is locked by the pawl head 702, and the rotating shaft A600 will not rotate. However, the gear disc 801 is affected by the tension, and the T-shaped chuck 804 will retract into the mounting slot 802, thus unlocking the gear disc 801 and the rotating shaft A600. In this way, the electric push rod 809 ensures that the rotating shaft A600 rotates when the rack 808 goes forward and cannot rotate when the rack 808 returns. This process repeats, and the gear disc 801 and the rotating shaft A600 will rotate six degrees each time, thereby rotating the external turbine disc 500, achieving the purpose of precisely controlling the rotation angle of the indexing plate.

[0056] The extension of the electric push rod 809 eventually causes the rotating shell 300 to rotate within the fixed shell 200. A locking mechanism 900 is installed in the fixed shell 200. An annular groove B910 is provided at the bottom of the fixed shell 200. The extension rod 908 and the pressure head 1014 in the locking mechanism 900 extend into the annular groove B910. When unlocked, the push spring 904 pushes the sliding bar 902, the extension rod 908, and the locking piece 909 upward, preventing the locking piece 909 from contacting the inner bottom wall of the annular groove B910. When locked, the output end of the cylinder 907 extends and pushes the trapezoidal block 906 into the trapezoidal hole 905. Using the inclined surface of the trapezoid, the trapezoidal block 906 will squeeze the sliding bar 902 downward, and then the locking piece 909 will press tightly against the inner bottom wall of the annular groove B910, thereby locking the rotating shell 300 and preventing accidental rotation that could lead to inaccurate angles.

[0057] The turbine disk 500 is pre-fitted onto the outer periphery of the vertical rod 1011 and placed on the surface of the casing 400. A drive motor 1005 rotates the bevel gear 1004, which in turn drives the conical gear ring 1003 to rotate. This causes the disk 1002 to rotate around the shaft B1001. The upper surface of the disk 1002 has helical grooves 1006, on which toothed plates 1007 mesh. The rotating disk 1002... This will drive the four sliders 1008 to unfold synchronously, ensuring that the four vertical rods 1011 press against the inner diameter of the turbine disk 500, thus clamping the turbine disk 500. At the same time, as the vertical rods 1011 approach the inner diameter of the turbine disk 500, the pressure head 1014 is pulled up in advance, placed on the upper surface of the turbine disk 500, and then released. The push spring 1015 can make the pressure head 1014 press tightly against the top of the turbine disk 500, thus fixing the turbine disk 500.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbine-style mortise and tenon broaching machine indexing plate, characterized by: The system includes a mounting flange (100), a fixed housing (200) fixedly mounted on the top of the mounting flange (100), a rotating housing (300) rotatably mounted inside the fixed housing (200), a sealing shell (400) fixedly mounted on the top of the rotating housing (300), a turbine disk (500) clamped on the surface of the sealing shell (400), a rotating shaft A (600) rotatably connected to the inner bottom wall of the fixed housing (200), and a ratchet mechanism (700) and a gear mechanism (800) respectively fitted on the outer side of the rotating shaft A (600). The ratchet mechanism (700) is located at the gear... Below the wheel mechanism (800), the ratchet mechanism (700) is used to restrict the rotating shaft A (600) to rotate only in one direction. The gear mechanism (800) is used to control the rotating shaft A (600) to rotate on its own after being restricted by the ratchet mechanism (700). The fixed shell (200) is provided with a locking mechanism (900) inside. The locking mechanism (900) is used to lock the rotating shell (300) in position. The rotating shell (300) is provided with a clamping mechanism (1000) inside. The clamping mechanism (1000) is used to lock and clamp the inner diameter of the turbine disk (500). The ratchet mechanism (700) includes a ratchet disc (701) fixedly mounted on the outside of the rotating shaft A (600). Four evenly distributed pawl heads (702) are engaged around the ratchet disc (701). A connecting shaft (703) is rotatably connected to one end of the pawl head (702) away from the ratchet disc (701). The bottom of the connecting shaft (703) is fixedly connected to the bottom wall of the fixed housing (200). A torsion spring (704) is mounted on the outside of the connecting shaft (703). One end of the torsion spring (704) is inserted through the surface of the pawl head (702), and the other end of the torsion spring (704) is inserted through the outer wall of the connecting shaft (703). The locking mechanism (900) includes a frame (901) fixedly installed on the inner bottom wall of the fixed housing (200). A sliding strip (902) is slidably connected inside the frame (901). A groove (903) is provided at the bottom of the sliding strip (902). A push spring (904) is fixedly installed inside the groove (903). A trapezoidal hole (905) is provided inside the sliding strip (902). A trapezoidal block (906) is slidably installed on the side of the trapezoidal hole (905). The side of the trapezoidal block (906) is fixedly connected to the output end of the cylinder (907). The cylinder (907) is fixedly connected to the side of the frame (901). An extension rod (908) is fixedly installed at the top of the sliding strip (902). A locking piece (909) is fixedly installed at the top of the extension rod (908). An annular groove B (910) corresponding to the extension rod (908) and the locking piece (909) is provided at the bottom of the rotating housing (300). The top of the frame (901) has an opening corresponding to the sliding bar (902). The displacement of the trapezoidal block (906) squeezes the trapezoidal hole (905) inside the sliding bar (902) downward. The annular groove B (910) is composed of an annular horizontal groove and an annular vertical groove. The cross-section of the two grooves is T-shaped. The locking piece (909) is located in the annular horizontal groove, and the extension rod (908) is located in the annular horizontal groove. The thickness of the locking piece (909) is less than the depth of the annular horizontal groove.

2. The indexing plate of the turbine disk tenoning broaching machine according to claim 1, characterized in that: The top of the inner wall of the fixed shell (200) is provided with an annular opening A, and the bottom of the outer wall of the rotating shell (300) is provided with an annular opening B. The rotating shell (300) is inserted into the annular opening A of the fixed shell (200) through the annular opening B. The rotating shell (300) is rotatably connected to the fixed shell (200) through the annular opening A and the annular opening B. The top of the rotating shaft A (600) is fixedly installed to the bottom of the fixed shell (200).

3. The indexing plate of the turbine disk tenoning broaching machine according to claim 1, characterized in that: The gear mechanism (800) includes a gear disk (801) movably fitted on the outside of the rotating shaft A (600). The inner wall of the gear disk (801) is provided with an installation groove (802). A push spring (803) is provided inside the installation groove (802). A T-shaped clamp (804) is fixedly installed at the other end of the push spring (803). A limit ring (805) is movably fitted on the outside of the T-shaped clamp (804). The limit ring (805) is fixedly installed at the opening of the installation groove (802). A groove (806) corresponding to the T-shaped clamp (804) is provided on the outside of the rotating shaft A (600). An annular groove A (807) communicating with the groove (806) is provided on the outside of the T-shaped clamp (804).

4. The indexing plate of the turbine disk tenoning broaching machine according to claim 3, characterized in that: The gear disk (801) has a rack (808) meshing on its side. The side of the rack (808) is fixedly installed with the output end of the electric push rod (809). The electric push rod (809) is fixedly installed on the top of the support plate (810). The two ends of the support plate (810) are fixedly connected to the inner wall of the fixed shell (200). The surface of the support plate (810) is provided with a groove (811) corresponding to the rack (808). The rack (808) slides in the groove (811) through the slider at its bottom.

5. The indexing plate of the turbine disk tenoning broaching machine according to claim 1, characterized in that: The clamping mechanism (1000) includes a rotating shaft B (1001) fixedly installed between the center of the rotating shell (300) and the sealing shell (400). A disc (1002) is rotatably connected to the outside of the rotating shaft B (1001) via a bearing. A conical toothed ring (1003) is fixedly installed at the bottom of the disc (1002). A number of bevel gears (1004) mesh at the bottom of the conical toothed ring (1003). The axis of one of the bevel gears (1004) is fixedly connected to the output end of a drive motor (1005). The bottom of the drive motor (1005) is fixedly connected to the inner bottom wall of the rotating shell (300).

6. The indexing plate of the turbine disk tenoning broaching machine according to claim 5, characterized in that: The top of the disc (1002) is provided with a helical toothed groove (1006), and a number of toothed plates (1007) are engaged with the top of the disc (1002) through the helical toothed groove (1006). A slider (1008) is fixedly installed on the top of the toothed plate (1007). Limiting grooves (1009) are provided on both sides of the slider (1008). The surface of the shell (400) is provided with a slider groove (1010) corresponding to the slider (1008). The slider groove (1010) is an open shape that runs through the top and bottom, and a limiting strip corresponding to the limiting groove (1009) is fixedly installed on the inner wall of the slider groove (1010).

7. The indexing plate of the turbine disk tenoning broaching machine according to claim 6, characterized in that: A vertical rod (1011) is fixedly installed on the top of the slider (1008). A deep groove (1012) is formed on the side of the vertical rod (1011). The top of the deep groove (1012) is open. A sealing plate (1016) is detachably installed on the top of the vertical rod (1011) by bolts. A sliding rod (1013) is fixedly installed on the inner bottom wall of the deep groove (1012). The top of the sliding rod (1013) abuts against the sealing plate (1016). On the lower surface, a pressure head (1014) is slidably fitted on the outer side of the slide rod (1013). The end of the pressure head (1014) away from the slide rod (1013) extends to the outer side of the vertical rod (1011), and the bottom of the extended end of the pressure head (1014) is provided with a slope. A push spring (1015) is provided between the pressure head (1014) and the sealing plate (1016), and the push spring (1015) is fitted on the outer side of the slide rod (1013).

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