Rotor blade machining clamp

Abstract

The utility model relates to the technical field of blade machining clamps, and provides a rotor blade machining clamp which comprises a fixed cylinder, a plurality of clamping assemblies are installed on the peripheral side of the fixed cylinder, and one end of each clamping assembly is rotationally connected with the fixed cylinder. The clamping assembly comprises a U-shaped clamping block, a telescopic pressing rod and a V-shaped supporting block, the V-shaped supporting block is arranged on one side face of the U-shaped clamping block, the telescopic pressing rod is arranged on the other side face of the U-shaped clamping block, and a blade body is clamped between the V-shaped supporting block and the telescopic pressing rod to abut against the V-shaped supporting block and the telescopic pressing rod; a gear is installed on the back side of the U-shaped clamping block and connected with an end face gear ring in an engaged mode, and the end face gear ring is rotated to drive the multiple clamping assemblies to synchronously rotate with the blade body. According to the paint spraying device, the blades are clamped in a point-surface contact mode, the attaching, clamping and stabilizing effect is better, paint spraying is carried out when the multiple blades are kept in a rotating state, and the problem that the thickness of a coating formed by accumulation of flowing paint is not uniform can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of blade processing fixtures, in particular to a rotor blade processing fixture. Background Art

[0002] The aircraft engine used in aircraft is a highly complex and precise thermal machine. It is the heart of the aircraft and provides the aircraft with the power it needs to fly. During production, the rotor blades of the aircraft engine need to be clamped and processed, so that the surface can be polished, refined, and painted.

[0003] However, the surface of the turbine rotor blade is a continuously twisted curved surface. It is difficult for ordinary clamps to clamp the blades firmly when processing the blade root profile. The clamps often slip during the processing. In addition, the curved surface of the blade makes it difficult to cover the sprayed surface when painting. When the paint is not dry, it is easy to flow to the lower place along the curved surface due to gravity, resulting in uneven coating adhesion. Utility Model Content

[0004] The utility model aims to provide a rotor blade processing fixture which can clamp more firmly and prevent falling off, and ensure the uniform thickness of spraying adhesion.

[0005] The embodiment of the utility model is realized through the following technical scheme: a rotor blade processing fixture comprises a fixed cylinder, a plurality of groups of clamping assemblies are installed on the circumferential side of the fixed cylinder, and one end of the clamping assembly is rotatably connected to the fixed cylinder; the clamping assembly comprises a U-shaped clamping block, a telescopic clamping rod and a V-shaped support block, the V-shaped support block is arranged on one side of the U-shaped clamping block, the telescopic clamping rod is arranged on the other side of the U-shaped clamping block, and the blade body is clamped between the V-shaped support block and the telescopic clamping rod for tightening; a gear is installed on the back side of the U-shaped clamping block, and the gear is meshedly connected with an end face gear ring, and the end face gear ring is rotated to drive multiple clamping assemblies to rotate synchronously with the blade body.

[0006] Preferably, the outside of the fixed column is rotatably connected to a turntable, and the end face gear ring is arranged at the bottom of the turntable; a motor is installed in the middle of the fixed column, one end of the motor is connected to a drive plate, and the drive plate is connected to the turntable and rotates synchronously.

[0007] Preferably, a limiting slot adapted to the connecting end of the blade body is provided in the middle of the U-shaped clamping block, and a sensor is installed in the limiting slot; the telescopic clamping rod is electrically controlled, and the telescopic clamping rod is electrically connected to the sensor.

[0008] Preferably, it further comprises a spraying rod, one end of which is fixedly mounted on the edge of the turntable, the clamping assembly is arranged below the spraying rod, and the length of the spraying rod is adapted to the length of the blade body.

[0009] Preferably, two telescopic pressing rods are provided, and the two telescopic pressing rods are symmetrically arranged on both sides of the V-shaped support block.

[0010] Preferably, the front end of the telescopic pressing rod is a spherical structure.

[0011] Preferably, the front end of the telescopic pressing rod is made of rubber material.

[0012] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: compared with the prior art, the utility model compresses the blades through the surface contact of the V-shaped support block and the point contact of the telescopic clamping rod, and the clamping fit is better and anti-slip, and at the same time, the U-shaped clamping block is kept rotating during the spraying process to avoid paint accumulation, so that the coating adheres to the blade more evenly during the curing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of the rotor blade processing fixture provided by the embodiment of the utility model when in use;

[0015] Figure 2 for Figure 1 A local enlarged schematic diagram of the A in FIG.

[0016] Figure 3 It is a front view schematic diagram of the U-shaped clamping block in the utility model;

[0017] Figure 4 It is a top view of the rotor blade processing fixture in the utility model.

[0018] Icons: 1-fixed cylinder, 2-clamping assembly, 21-U-shaped clamping block, 211-limiting slot, 22-telescopic clamping rod, 23-V-shaped support block, 24-sensor, 25-gear, 3-turntable, 4-end face gear ring, 5-blade body, 6-spraying rod, 7-drive plate, 8-motor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] Example

[0023] The following is further described in conjunction with specific embodiments. Figure 1-Figure 4 As shown, this embodiment is a rotor blade processing fixture, including a fixed cylinder 1, a plurality of clamping assemblies 2 are installed on the circumferential side of the fixed cylinder 1, and one end of the clamping assembly 2 is rotatably connected to the fixed cylinder 1; the clamping assembly 2 includes a U-shaped clamping block 21, a telescopic clamping rod 22 and a V-shaped support block 23, the V-shaped support block 23 is arranged on one side of the U-shaped clamping block 21, the telescopic clamping rod 22 is arranged on the other side of the U-shaped clamping block 21, and the blade body 5 is clamped between the V-shaped support block 23 and the telescopic clamping rod 22 to press tightly; a gear 25 is installed on the back side of the U-shaped clamping block 21, and the gear 25 is meshed and connected with an end face gear ring 4, and the end face gear ring 4 is rotated to drive multiple clamping assemblies 2 to synchronize the blades The blade body 5 rotates; specifically, when the utility model processes the blade body 5, the blade body 5 is sequentially inserted into the U-shaped clamping block 21, so that the lower end curved surface of the blade body 5 is surface supported by the V-shaped support block 23, and then the upper end surface of the blade body 5 is pressed down and tightened by the telescopic clamping rod 22 to achieve point-surface contact clamping, and the clamping anti-slip property is good. After the clamping is completed, the end face gear ring 4 is driven to rotate, so that the gear 25 drives the U-shaped clamping block 21 and the blade body 5 to rotate synchronously, and the blade body 5 is painted. The blade body 5 is painted in a continuous rotating state, so that the coating is not easy to accumulate too thick and the adhesion is more uniform. In addition, multiple clamping components 2 also improve the processing efficiency.

[0024] like Figure 1 and Figure 4As shown, the external rotation of the fixed column 1 in this embodiment is connected to the turntable 3, and the end face gear ring 4 is arranged at the bottom of the turntable 3; a motor 8 is installed in the middle of the fixed column 1, one end of the motor 8 is connected to the drive plate 7, and the drive plate 7 is connected to the turntable 3 and rotates synchronously; specifically, the rotation power of the clamping assembly 2 comes from the motor 8, and while the motor 8 drives the turntable 3 to rotate, the end face gear ring 4 located below the turntable 3 and integrated with it only needs to rotate, so that the end face gear ring 4 drives multiple gears 25 to rotate, and multiple blade bodies 5 are painted and sprayed during continuous rotation, with a high degree of automation.

[0025] Reference Figure 1 As shown, in order to improve the clamping firmness of the blade body 5, a limiting slot 211 adapted to the connecting end of the blade body 5 is opened in the middle of the U-shaped clamping block 21, and a sensor 24 is installed in the limiting slot 211; the telescopic clamping rod 22 adopts an electrically controlled type, and the telescopic clamping rod 22 is electrically connected to the sensor 24. Specifically, when the blade body 5 is inserted into the limiting slot 211 to trigger the sensor 24, the electrically controlled telescopic clamping rod 22 is energized to press down and tighten the blade body 5, and the limiting slot 211 and the telescopic clamping rod 22 form two points in the length direction of the blade body 5, and the clamping stability is better.

[0026] Reference Figure 1 As shown, this embodiment also includes a spray rod 6, one end of which is fixedly mounted on the edge of the turntable 3, the clamping assembly 2 is arranged below the spray rod 6, and the length of the spray rod 6 is adapted to the length of the blade body 5; specifically, the spray rod 6 is installed on the turntable 3 so that the spray rod 6 can rotate synchronously with it to spray paint on multiple blade bodies 5 to cover the entire surface.

[0027] Reference Figure 3 As shown, two telescopic clamping rods 22 are provided, and the two telescopic clamping rods 22 are symmetrically arranged on both sides of the V-shaped support block 23, so that the force during the clamping process is more balanced.

[0028] In order to better fit the curved surface during the clamping process, the front end of the telescopic pressing rod 22 is a spherical structure.

[0029] In addition, in order to prevent the telescopic pressing rod 22 from causing damage to the surface of the blade body 5 due to excessive pressure, the front end of the telescopic pressing rod 22 is made of rubber material, which has a certain degree of softness.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. 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 rotor blade machining fixture, characterized in that: It comprises a fixed column (1), a plurality of groups of clamping assemblies (2) are installed on the circumference of the fixed column (1), and one end of the clamping assembly (2) is rotatably connected to the fixed column (1); The clamping assembly (2) comprises a U-shaped clamping block (21), a telescopic clamping rod (22) and a V-shaped support block (23); the V-shaped support block (23) is arranged on one side of the U-shaped clamping block (21); the telescopic clamping rod (22) is arranged on the other side of the U-shaped clamping block (21); the blade body (5) is clamped between the V-shaped support block (23) and the telescopic clamping rod (22) to be pressed; A gear (25) is installed on the back side of the U-shaped clamping block (21), and the gear (25) is meshedly connected with an end face gear ring (4). By rotating the end face gear ring (4), the plurality of clamping assemblies (2) are driven to rotate synchronously with the blade body (5).

2. The rotor blade machining fixture according to claim 1, characterized in that: The fixed cylinder (1) is rotatably connected to a rotating disk (3) on the outside, and the end face gear ring (4) is arranged at the bottom of the rotating disk (3); A motor (8) is installed in the middle of the fixed column (1), one end of the motor (8) is connected to a drive plate (7), and the drive plate (7) is connected to the turntable (3) and rotates synchronously.

3. The rotor blade machining fixture according to claim 1, characterized in that: A limiting slot (211) adapted to the connection end of the blade body (5) is provided in the middle of the U-shaped clamping block (21), and a sensor (24) is installed in the limiting slot (211).

4. The rotor blade machining fixture according to claim 3, characterized in that: The telescopic pressing rod (22) is electrically controlled, and the telescopic pressing rod (22) is electrically connected to the sensor (24).

5. The rotor blade machining fixture according to claim 2, characterized in that: It also comprises a spraying rod (6), one end of which is fixedly mounted on the edge of the turntable (3), the clamping assembly (2) is arranged below the spraying rod (6), and the length of the spraying rod (6) is adapted to the length of the blade body (5).

6. The rotor blade machining fixture according to claim 1, characterized in that: Two telescopic pressing rods (22) are provided, and the two telescopic pressing rods (22) are symmetrically arranged on both sides of the V-shaped support block (23).

7. The rotor blade machining fixture according to claim 6, characterized in that: The front end of the telescopic pressing rod (22) is a spherical structure.

8. The rotor blade machining fixture according to claim 6, characterized in that: The front end of the telescopic pressing rod (22) is made of rubber material.

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