An aircraft engine rotor clamping tooling

Abstract

The present invention discloses an aeroengine rotor clamping tooling, which relates to the field of aeroengine processing equipment. The present invention includes a frame, on which a clamping device with a horizontally rotating shaft is rotatably installed. The first clamping arm and the second clamping arm of the clamping device are symmetrically arranged about its axis. The first clamping arm and the second clamping arm are installed at both ends of a connecting rod, and the connecting rod is rotatably connected to the frame. The clamping end of the first clamping arm is rotatably arranged towards the second clamping arm, and the clamping end of the second clamping arm is rotatably arranged towards the first clamping arm, and the axes of the two clamping ends coincide; so as to achieve the purpose of stably and efficiently installing the rotor during the installation process of the rotor without frequently hoisting and transferring the position of the rotor.

Description

Technical Field

[0001] The present invention relates to the field of aero-engine processing equipment, and specifically, to a clamping tooling for an aero-engine rotor. Background Art

[0002] The assembly process of an aero-engine accounts for more than half of the whole machine production work, and the assembly quality has a great influence on the working stability of the aero-engine. The aero-engine rotor works in a high-temperature and high-pressure environment and rotates at a high speed. If problems such as out-of-tolerance concentricity occur during the assembly process, it will cause unbalanced rotation of the rotor, resulting in vibration and noise, and even cause the engine to stop.

[0003] Currently, during the process of assembling the rotor and the blades, two sets of toolings are used. That is, first, the horizontal tooling is used to clamp the rotor, and then the blades of the rotor are installed and combined with the rotor in the horizontal state. After the installation is completed, the rotor with the blades installed is lifted by a lifting tool and clamped in the vertical tooling, and then the rotors with multiple blades installed are connected and fixed to each other. In this way, because the rotor needs to be frequently lifted and moved, if the rotor is damaged during the moving process, it will have a huge impact on the installation operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a clamping tooling for an aero-engine rotor, so as to achieve the purpose of stably and efficiently installing the rotor without frequently lifting and transferring the position of the rotor during the installation process of the rotor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical means:

[0006] A clamping tooling for an aero-engine rotor includes a frame. A clamping device with a horizontal rotating shaft is rotatably installed on the frame. The first clamping arm and the second clamping arm of the clamping device are symmetrically arranged about its axis. The first clamping arm and the second clamping arm are installed at both ends of a connecting rod. The connecting rod is rotatably connected to the frame. The clamping end of the first clamping arm is rotatably arranged towards the second clamping arm, and the clamping end of the second clamping arm is rotatably arranged towards the first clamping arm, and the axes of the two clamping ends coincide.

[0007] Preferably, a sliding box that slides up and down is slidably installed on the frame. A rotating gear is installed in the sliding box. A connecting shaft that extends out of the sliding box and is used to rotate the clamping device is installed at the center position of the rotating gear. The end of the connecting shaft is connected to the clamping device. A first motor with a rotating shaft parallel to the connecting shaft is installed on the side wall of the sliding box. A transmission gear that meshes with the rotating gear is installed at the rotating end of the first motor.

[0008] Further, a vertically extending sliding channel is provided on the frame, and the sliding channel communicates with the inner cavity of the frame. An engagement block is mounted on one side of the sliding box facing the frame, and the engagement block passes through the sliding channel and extends into the inner cavity of the frame. A second motor is mounted on the top end of the frame, the rotating end of the second motor is vertically downward and is provided with an external threaded rod, and the external threaded rod passes through the engagement block and is threadedly connected to the engagement block.

[0009] Furthermore, the connecting rod is connected to the connecting shaft.

[0010] Furthermore, the first clamping arm includes a first support rod fixed to the connecting rod and parallel to the rotating shaft of the connecting rod. A first pressing device is mounted at one end of the first support rod facing away from the connecting rod. The first pressing device includes a first threaded telescopic rod facing the second clamping arm, and a first pressing block is rotatably mounted at the telescopic end of the first threaded telescopic rod.

[0011] Furthermore, the first pressing block includes a first support plate rotatably connected to the first threaded telescopic rod. A first insertion limiting cylinder is coaxially mounted on the side of the first support plate opposite to the first threaded telescopic rod. A first locking device is mounted on the bottom surface of the first support plate, and the locking end of the first locking device extends horizontally outward and faces the side wall of the first insertion limiting cylinder.

[0012] Furthermore, the second clamping arm includes a second support rod fixed to the connecting rod and parallel to the rotating shaft of the connecting rod. A second pressing device is mounted at one end of the second support rod facing away from the connecting rod. The second pressing device includes a second threaded telescopic rod facing the first clamping arm, and a second pressing block is rotatably mounted at the telescopic end of the second threaded telescopic rod.

[0013] Furthermore, the second pressing block includes a second support plate rotatably connected to the second threaded telescopic rod. A second insertion limiting cylinder is coaxially mounted on the side of the second support plate opposite to the second threaded telescopic rod. A second locking device is mounted on the bottom surface of the second support plate, and the proximal end of the second locking device extends horizontally outward and faces the side wall of the second insertion limiting cylinder.

[0014] During the use of the present invention, the following beneficial effects are achieved:

[0015] When installing an aero-engine rotor, first rotate the clamping device to a horizontal position, that is, keep the first clamping arm and the second clamping arm horizontal. Use the clamping ends of the first clamping arm and the second clamping arm to clamp the main body of the rotor and keep the main body of the rotor in a horizontal state. Then start installing the blades on the surface of the rotor. During the installation of the blades, the main body of the rotor can rotate freely under the action of the clamping ends, which provides convenient conditions for installing the blades around the surface of the rotor body. Only the workpiece needs to be rotated without the worker having to rotate around the rotor. Furthermore, after the blades of the rotor are installed, rotate the clamping device again to make the clamping device rotate from a horizontal state to a vertical state. In this way, it can ensure that the two rotors with blades installed between the first clamping arm and the second clamping arm can complete the transformation from the horizontal direction to the vertical direction without changing the relative position of their main bodies. When the workpiece is in a vertical state, the two rotors can be installed and fixed. Similarly, during the installation and fixing process, the rotor can rotate freely, and the worker does not need to move around the rotor. On the one hand, it improves the installation accuracy and efficiency. On the other hand, the relative positions of the two rotor bodies will not change. That is to say, after the blades are installed, when the rotor is rotated to a vertical state, there is no need to manually align the two rotors, which effectively improves the installation efficiency and directly avoids the situation of the workpiece being damaged by collision during the process of lifting and displacing the workpiece using a lifting tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is a front view of the present invention,

[0018] Figure 3 is Figure 2 the schematic structural diagram of the A-A cross-section in

[0019] Figure 4 It is a schematic side view structure diagram of the present invention.

[0020] Figure 5 is Figure 4 the partial enlarged structural diagram at A in

[0021] Among them, 1 - frame, 2 - clamping device, 21 - first clamping arm, 211 - first support rod, 212 - first pressing device, 2121 - first threaded telescopic rod, 2122 - first pressing block, 21221 - first support plate, 21222 - first insertion limiting cylinder, 21223 - first locking device, 22 - second clamping arm, 221 - second support rod, 222 - second pressing device, 2221 - second threaded telescopic rod, 2222 - second pressing block, 22221 - second support plate, 22222 - second insertion limiting cylinder, 22223 - second locking device, 23 - connecting rod, 3 - sliding box, 4 - first motor, 5 - connecting block, 6 - second motor, 7 - external threaded rod. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0024] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0025] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] For details, please refer to Figures 1 to 5 As shown, an aircraft engine rotor clamping tooling includes a frame 1. A clamping device 2 with a horizontally arranged rotating shaft is rotatably installed on the frame 1. The first clamping arm 21 and the second clamping arm 22 of the clamping device 2 are symmetrically arranged about its axis. The first clamping arm 21 and the second clamping arm 22 are installed at both ends of a connecting rod 23. The connecting rod 23 is rotatably connected to the frame 1. The clamping end of the first clamping arm 21 is rotatably arranged towards the second clamping arm 22, and the clamping end of the second clamping arm 22 is rotatably arranged towards the first clamping arm 21, and the axes of the two clamping ends coincide.

[0029] In this way, when installing the aircraft engine rotor, first rotate the clamping device 2 to a horizontal position, that is, keep the first clamping arm 21 and the second clamping arm 22 horizontal. Use the clamping ends of the first clamping arm 21 and the second clamping arm 22 to clamp the main body of the rotor, and keep the main body of the rotor in a horizontal state. Then start installing the blades on the surface of the rotor. During the process of installing the blades, the main body of the rotor can freely rotate under the action of the clamping ends, which provides convenient conditions for installing the blades around the surface of the rotor body. Only the workpiece needs to rotate, and there is no need for the worker to rotate around the rotor. Furthermore, after the blades of the rotor are installed, rotate the clamping device 2 again to make the clamping device 2 rotate from the horizontal state to the vertical state. In this way, it can be ensured that the two rotors with installed blades clamped between the first clamping arm 21 and the second clamping arm 22 can complete the transformation from the horizontal direction to the vertical direction without changing the relative positions of their main bodies. When the workpiece is in the vertical state, the two rotors can be installed and fixed. Similarly, during the process of installation and fixation, the rotor can freely rotate, and there is no need for the worker to move around the rotor. On the one hand, the installation accuracy and efficiency are improved. On the other hand, the relative positions of the two rotors will not change. That is to say, after the blades are installed, when the rotor is rotated to the vertical state, there is no need to manually align the two rotors, which effectively improves the installation efficiency and directly avoids the situation of collision and damage of the workpiece during the process of hoisting and displacing the workpiece by the lifting tool.

[0030] Furthermore, a sliding box 3 that slides up and down is slidably mounted on the frame 1. A rotating gear is installed in the sliding box 3. A connecting shaft that extends out of the sliding box 3 and is used to rotate the clamping device 2 is installed at the center of the rotating gear. The end of the connecting shaft is connected to the clamping device 2. A first motor 4 with a rotating shaft parallel to the connecting shaft is installed on the side wall of the sliding box 3. A transmission gear that meshes with the rotating gear is installed at the rotating end of the first motor 4.

[0031] That is to say, by controlling the operation of the first motor 4, the rotation of the clamping device 2 is realized.

[0032] Moreover, for the up and down movement of the sliding box 3, a vertically extending sliding channel is provided on the frame 1. The sliding channel communicates with the inner cavity of the frame 1. A connecting block 5 is installed on one side of the sliding box 3 facing the frame 1. The connecting block 5 passes through the sliding channel and extends into the inner cavity of the frame 1. A second motor 6 is installed at the top of the frame 1. The rotating end of the second motor 6 is vertically downward and is installed with an external threaded rod 7. The external threaded rod 7 passes through the connecting block 5 and is threadedly connected to the connecting block 5. And the connecting rod 23 is connected to the connecting shaft.

[0033] In this way, during the rotation of the second motor 6, the external threaded rod 7 can be rotated, and then the connecting block 5 can move up and down along the sliding channel under the limiting action of the sliding channel, so as to realize the adjustment of the sliding box 3, and further adjust the height of the clamping device 2.

[0034] Then, for the clamping device 2, more specifically, the first clamping arm 21 includes a first support rod 211 that is fixed to the connecting rod 23 and is parallel to the rotating shaft of the connecting rod 23. A first pressing device 212 is installed at the end of the first support rod 211 facing away from the connecting rod 23. The first pressing device 212 includes a first threaded telescopic rod 2121 facing the second clamping arm 22 (the telescopic end of the first threaded telescopic rod 2121 faces the second clamping arm 22). A first pressing block 2122 is rotatably installed at the telescopic end of the first threaded telescopic rod 2121.

[0035] The first pressing block 2122 includes a first support plate 21221 rotatably connected to the first threaded telescopic rod 2121. A first insertion limiting cylinder 21222 is coaxially installed on the side of the first support plate 21221 opposite to the first threaded telescopic rod 2121. A first locking device 21223 is installed on the bottom surface of the first support plate 21221. The locking end of the first locking device 21223 extends horizontally outward and faces the side wall of the first insertion limiting cylinder 21222.

[0036] The second clamping arm 22 includes a second support rod 221 fixed to the connecting rod 23 and parallel to the axis of rotation of the connecting rod 23. At one end of the second support rod 221 facing away from the connecting rod 23, a second pressing device 222 is installed. The second pressing device 222 includes a second threaded telescopic rod 2221 facing the first clamping arm 21. (The telescopic end of the second threaded telescopic rod 2221 faces the first clamping arm 21.) A second pressing block 2222 is rotatably installed at the telescopic end of the second threaded telescopic rod 2221.

[0037] The second pressing block 2222 includes a second support plate 22221 rotatably connected to the second threaded telescopic rod 2221. On the side of the second support plate 22221 opposite to the second threaded telescopic rod 2221, a second insertion limiting cylinder 22222 is coaxially installed. A second locking device 22223 is installed on the bottom surface of the second support plate 22221. The proximal end of the second locking device 22223 extends horizontally outward and faces the side wall of the second insertion limiting cylinder 22222.

[0038] In this way, when installing the material, the sunken part in the middle of the main body of the rotor can be installed in the first insertion limiting cylinder 21222 or the second insertion limiting cylinder 22222, and the end of the aforementioned main body can be placed on the first support plate 21221 or the second support plate 22221. Then, the side wall of the main body is squeezed by the first locking device 21223 or the second locking device 22223, and the workpiece is clamped and locked by the interaction between the first insertion limiting cylinder 21222 or the second insertion limiting cylinder 22222 and the aforementioned locking device. Then, the workpiece is adjusted by the first threaded telescopic rod 2121 or the second threaded telescopic rod 2221, and the other insertion limiting cylinder that does not contact the workpiece is adjusted by the aforementioned threaded telescopic rod to make it insert into the workpiece, and it is fastened in the same way.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An aircraft engine rotor clamping tooling, characterized in that: It includes a frame (1), on which a clamping device (2) with a horizontally rotating shaft is rotatably installed. The first clamping arm (21) and the second clamping arm (22) of the clamping device (2) are symmetrically arranged about its rotation axis. The first clamping arm (21) and the second clamping arm (22) are installed at both ends of a connecting rod (23). The connecting rod (23) is rotatably connected to the frame (1). The clamping end of the first clamping arm (21) is rotatably arranged towards the second clamping arm (22), and the clamping end of the second clamping arm (22) is rotatably arranged towards the first clamping arm (21), and the axes of the two clamping ends coincide; A sliding box (3) that slides up and down is slidably installed on the frame (1). A rotating gear is installed in the sliding box (3). A connecting shaft that extends out of the sliding box (3) and is used to rotate the clamping device (2) is installed at the center of the rotating gear. The end of the connecting shaft is connected to the clamping device (2). A first motor (4) with a rotating shaft parallel to the connecting shaft is installed on the side wall of the sliding box (3). A transmission gear that meshes with the rotating gear is installed at the rotating end of the first motor (4); The first clamping arm (21) includes a first support rod (211) that is fixed to the connecting rod (23) and is parallel to the rotating shaft of the connecting rod (23). A first pressing device (212) is installed at the end of the first support rod (211) facing away from the connecting rod (23). The first pressing device (212) includes a first threaded telescopic rod (2121) that faces the second clamping arm (22). A first pressing block (2122) is rotatably installed at the telescopic end of the first threaded telescopic rod (2121).

2. The clamping tooling for an aero-engine rotor according to claim 1, characterized in that: A vertically extending sliding channel is provided on the frame (1). The sliding channel communicates with the inner cavity of the frame (1). An adapter block (5) is installed on the side of the sliding box (3) facing the frame (1). The adapter block (5) passes through the sliding channel and extends into the inner cavity of the frame (1). A second motor (6) is installed at the top of the frame (1). The rotating end of the second motor (6) extends vertically downward and is provided with an external threaded rod (7). The external threaded rod (7) passes through the adapter block (5) and is threadedly connected to the adapter block (5).

3. The clamping tooling for an aero-engine rotor according to claim 2, characterized in that: The connecting rod (23) is connected to the connecting shaft.

4. The clamping tooling for an aero-engine rotor according to claim 1, wherein: The first pressing block (2122) includes a first support plate (21221) that is rotatably connected to the first threaded telescopic rod (2121). A first insertion limiting cylinder (21222) is coaxially installed on the side of the first support plate (21221) opposite to the first threaded telescopic rod (2121). A first locking device (21223) is installed on the bottom surface of the first support plate (21221). The locking end of the first locking device (21223) extends horizontally outward and faces the side wall of the first insertion limiting cylinder (21222).

5. The clamping tooling for an aero-engine rotor according to claim 1, wherein: The second clamping arm (22) includes a second support rod (221) fixed to the connecting rod (23) and parallel to the rotation axis of the connecting rod (23). A second pressing device (222) is installed at one end of the second support rod (221) facing away from the connecting rod (23). The second pressing device (222) includes a second threaded telescopic rod (2221) arranged towards the first clamping arm (21). A second pressing block (2222) is rotatably installed at the telescopic end of the second threaded telescopic rod (2221).

6. The clamping tooling for an aero-engine rotor according to claim 5, characterized in that: The second pressing block (2222) includes a second support plate (22221) rotatably connected to the second threaded telescopic rod (2221). A second insertion limiting cylinder (22222) is coaxially installed on a surface of the second support plate (22221) opposite to the second threaded telescopic rod (2221). A second locking device (22223) is installed on the bottom surface of the second support plate (22221). The locking end of the second locking device (22223) extends horizontally outwards and faces the side wall of the second insertion limiting cylinder (22222).

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