A paddle processing apparatus

Abstract

The utility model discloses a paddle processing equipment belongs to paddle processing technical field, including base, the top of base is installed with moving assembly, the top of moving assembly is fixed with the fixture assembly for clamping paddle, the fixed wire rack assembly on base, be equipped with the processing rope for processing the paddle on wire rack assembly, wire rack assembly includes the box body fixed on base, at least four guide pulleys rotationally installed in the box body, the drive motor installed in the box body, the output of drive motor is fixedly connected with one of guide pulleys, the processing rope is around at least four guide pulleys, forms a closed movement loop. The utility model develops a kind of novel, can efficiently and precisely complete the equipment of paddle mounting portion processing.

Description

Technical Field

[0001] This utility model relates to the field of blade processing technology, and in particular to a blade processing equipment. Background Technology

[0002] Blades, especially those used in aircraft engines, gas turbines, or large wind power generation equipment, typically require mounting holes or connection holes at their tail end to secure them to the rotor disk. The dimensional accuracy, positional accuracy, and wall quality of these holes are crucial to the assembly accuracy and service life of the entire assembly.

[0003] Mechanical drilling or milling is the most common method for making holes, usually performed on multi-axis CNC machining centers. Operators use standard drill bits or milling cutters to drill or helically mill holes. However, this method has the following problems: First, the complex structure of the blade tail, often with features such as bosses and reinforcing ribs, results in a narrow machining area. Standard-length tools and tool holders can easily interfere with other parts of the workpiece, making it difficult to enter the predetermined position for machining. If specially made extended tools are used, the tool rigidity will be significantly reduced, easily generating vibration and affecting the roundness and surface roughness of the hole. Especially when machining difficult-to-machine materials or composite materials such as titanium alloys and high-temperature alloys, drilling generates large cutting forces and cutting heat, which may lead to burrs at the hole opening, material tearing, burning, and even defects such as delamination and fiber pull-out in composite materials. Furthermore, different drill bits or milling cutters need to be changed for machining different hole diameters, increasing tool costs and tool change time. Tool wear also needs to be strictly monitored to ensure consistent machining quality.

[0004] For conductive metallic materials, electrical discharge machining (EDM) can be used to produce high-precision holes without macroscopic cutting forces. However, its processing efficiency is very low, and it forms a heat-affected zone and a recast layer on the material surface, which may adversely affect the fatigue performance of the material. In addition, the equipment is expensive and cannot be used for non-conductive composite materials.

[0005] Laser cutting is highly efficient, but the heat-affected zone (HAZ) problem is significant. For aerospace components with stringent performance requirements, secondary processing is often required to remove the HAZ. High-pressure water jet cutting is a cold processing method with no HAZ, but the equipment is complex and the maintenance cost is high. Furthermore, when cutting thicker sections, the energy attenuation of the jet may lead to taper problems in the hole and a decrease in cut quality. Utility Model Content

[0006] The purpose of this invention is to develop a new type of equipment that can efficiently and precisely complete the processing of the blade mounting parts.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a blade processing device, including a base, a movable component installed on the top of the base, a clamping component for clamping blades fixed on the top of the movable component, a wire frame assembly fixed on the base, and a processing rope for processing the blades provided on the wire frame assembly.

[0008] The wire frame assembly includes a housing fixed on the base, at least four guide wheels rotatably mounted inside the housing, a drive motor mounted inside the housing, the output end of the drive motor being fixedly connected to one of the guide wheels, and the processing rope being wound around the at least four guide wheels to form a closed motion loop.

[0009] As a further description of the above technical solution: the moving component includes an X-axis lead screw and at least one linear slide rail mounted on the base.

[0010] Both the X-axis slider and the slider on the linear guide rail, which are threaded together with the X-axis lead screw, are fixed with connecting plates.

[0011] As a further description of the above technical solution: the moving component also includes a Y-axis lead screw and at least one linear slide rail disposed on the top of the connecting plate;

[0012] The Y-axis slider with Y-axis lead screw thread and the slider on the linear guide rail are both fixed with mounting plates, and the clamp assembly is fixed on the mounting plate.

[0013] As a further description of the above technical solution: the clamping assembly includes a placement seat rotatably disposed on the mounting plate, the placement seat being used to support the blade;

[0014] A rotary motor is fixed on the mounting plate, and the output end of the rotary motor is connected to the placement seat to drive the placement seat to rotate. At least one elbow clamp is provided on the placement seat.

[0015] As a further description of the above technical solution: the wire frame assembly also includes a tensioner installed on the inner wall of the box, the tensioner being connected to one of the guide wheels not connected to the drive motor, for applying and maintaining a preset tension force on the processing rope.

[0016] As a further description of the above technical solution: a touch screen mounting box is fixed on the outer wall of the housing, and a three-color light for indicating the device status is fixed on the touch screen mounting box.

[0017] As a further description of the above technical solution: the processing section formed by the processing rope on the wire frame assembly moves relative to the surface to be processed of the blade, which moves in coordination with the moving assembly and the clamping assembly, so as to realize the processing of the blade.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. Using a flexible machining rope as a cutting tool, the machining rope has a small diameter and flexible shape, which can easily enter the narrow area formed by the complex shape of the blade, pass through one side of the workpiece and guide it to the other side to form a cutting loop. This fundamentally solves the spatial interference problem caused by the volume of the tool body, tool holder or machine tool spindle of traditional rigid tools, and can easily make high-quality holes in positions that are difficult to reach by traditional methods.

[0020] 2. Cutting with diamond wire or other abrasive ropes is a cold, micro-grinding process that generates almost no cutting heat. This avoids defects such as heat-affected zones, burns, and changes in the metallographic structure of materials caused by drilling or laser cutting. At the same time, the force applied is small and uniform, and no large residual stress is generated around the hole wall. This also effectively avoids damage such as delamination and tearing that are common in composite materials when drilling holes, greatly ensuring the integrity of the hole and the performance of the part.

[0021] 3. The same machining rope can be programmed by CNC to cut circular holes of any diameter without the need to change different specifications of tools as in drilling. This greatly improves the flexibility of machining and reduces tool inventory costs. As a consumable, the unit cost of the machining rope is much lower than that of carbide drill bits, milling cutters or special tools, making the overall machining cost more competitive. Attached Figure Description

[0022] Figure 1 A front view of the present invention is shown;

[0023] Figure 2 A side view of the present invention is shown;

[0024] Figure 3 A rear view of the present invention is shown;

[0025] Figure 4 A top view of the present invention is shown;

[0026] Figure 5 A schematic diagram of the guide wheel and processing rope of this utility model is shown;

[0027] Figure 6 A perspective view of the housing of this utility model is shown;

[0028] Figure 7 A perspective view of the mounting plate and placement base of this utility model is shown.

[0029] Legend:

[0030] 10. Base; 11. Paddle; 12. X-axis lead screw; 13. X-axis slider; 14. Connecting plate; 15. Y-axis lead screw; 16. Y-axis slider; 17. Mounting plate; 18. Linear guide rail; 19. Placement seat; 20. Elbow clamp; 21. Rotary motor; 22. Housing; 23. Touch screen mounting box; 24. Tri-color light; 25. Guide wheel; 26. Tensioner; 27. Drive motor; 28. Processing rope. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-7 The present invention provides a technical solution: a blade processing device, including a stable base 10, and a moving component, a clamping component, and a wire frame component mounted on the base 10.

[0033] The base 10 is the installation foundation of the entire equipment, providing a high-rigidity and high-stability installation platform for other functional components. In this embodiment, the base 10 is preferably a rectangular frame structure welded from heavy steel, which is sturdy and can effectively absorb the vibration generated by the equipment during high-speed processing, thereby ensuring the overall processing accuracy and stability.

[0034] The core function of the moving component is to carry and drive the blade 11 to be processed to achieve precise two-dimensional spatial movement in the horizontal plane. The moving component is fixedly installed on the top of the base 10 and is specifically composed of an X-axis motion mechanism and a Y-axis motion mechanism.

[0035] The X-axis motion mechanism is used to realize reciprocating motion along the length direction of the equipment (defined as the X-axis). Specifically, two high-precision linear slide rails 18 are laid parallel to each other along the length direction on the top surface of the base 10. An X-axis lead screw 12 is installed in parallel between the two linear slide rails 18. One end of the X-axis lead screw 12 is connected to an X-axis drive motor through a coupling. An X-axis slider 13 is threadedly engaged with the X-axis lead screw 12 through an internal nut. A connecting plate 14 serving as the mounting base for the Y-axis motion mechanism is firmly installed on the top of the X-axis slider 13. A slider is also connected to the bottom of the connecting plate 14, and the slider is slidably connected to the linear slide rails 18. When the X-axis drive motor drives the X-axis lead screw 12 to rotate, the X-axis slider 13 will move smoothly and precisely in a straight line along the guide of the linear slide rails 18 in the X-axis direction.

[0036] The Y-axis motion mechanism is installed perpendicular to the X-axis motion mechanism and is used to realize reciprocating motion along the width direction of the equipment (defined as the Y-axis). Specifically, on the top surface of the connecting plate 14, along the direction perpendicular to the X-axis, two linear slide rails 18 and a Y-axis lead screw 15 are also installed in parallel. A Y-axis slider 16 is threadedly engaged with the Y-axis lead screw 15. The Y-axis lead screw 15 is also driven by an independent Y-axis drive motor. A mounting plate 17 for mounting the fixture assembly is fixed on the top of the Y-axis slider 16. The slider fixed at the bottom of the mounting plate 17 is slidably connected to the linear slide rails 18 on the connecting plate 14. When the Y-axis drive motor is working, the Y-axis slider 16 will drive the mounting plate 17 above it and the entire fixture assembly to move along the Y-axis direction. Through the coordinated control of the X-axis and Y-axis motion mechanisms, the point to be processed of the blade 11 can reach any position within the processing area.

[0037] The clamping assembly is used to quickly and securely clamp the blade 11 and can rotate it around a specific axis according to processing requirements. The assembly is mounted on the mounting plate 17 of the moving assembly. Specifically, the clamping assembly includes a placement seat 19, which is customized according to the complex contour of the blade 11 base. Its upper surface has a support surface that perfectly matches the bottom contour of the blade 11, enabling precise positioning of the blade 11. The placement seat 19 is rotatably mounted on the mounting plate 17 through a rotating support mechanism such as bearings. A rotary motor 21, preferably a servo motor, is fixed on the mounting plate 17 to achieve high-precision angle control.

[0038] The output shaft of the rotary motor 21 is connected to the rotating shaft of the placement seat 19 via a coupling, thereby enabling precise driving of the placement seat 19 and the fixed blade 11 to rotate at any angle. To ensure that the blade 11 is firmly locked during processing, several elbow clamps 20 are provided around the placement seat 19. The elbow clamp 20 is a manual or pneumatic quick clamping and releasing device. Its pressure arm can apply sufficient pressure to press the blade 11 firmly against the positioning surface of the placement seat 19, effectively preventing any slight displacement or vibration during processing and ensuring processing quality.

[0039] The wire frame assembly is the core unit for performing actual cutting or grinding tasks. This assembly is fixed to one side of the base 10, and its effective processing area is directly opposite the movement range of the fixture assembly. Specifically, the wire frame assembly includes a housing 22. The housing 22 not only provides a rigid mounting frame and safety protection for the internal transmission parts, but also has a touch screen mounting box 23 fixed on its outer door panel. The touch screen mounting box 23 is used to install a human-machine interface. Operators can use this touch screen to set processing parameters, call programs, monitor equipment status, etc. The touch screen mounting box 23 also integrates a tri-color light 24, which is used to intuitively display different working states of the equipment, such as operation, standby, and alarm, through different colored lights.

[0040] Inside the housing 22, four guide wheels 25 are rotatably mounted, forming a closed loop in space to guide a flexible machining rope 28. This machining rope 28 can be made of diamond wire, abrasive wire, or other types of flexible abrasive rope depending on the machining requirements. One of the guide wheels 25 located at the bottom acts as the drive wheel, with its shaft end fixedly connected to the output end of a drive motor 27. The drive motor 27 provides power for the high-speed cyclic motion of the machining rope 28. To ensure that the machining rope 28 maintains a constant tension during high-speed motion, another guide wheel 25 is connected to a tensioner 26. The tensioner 26 applies a continuous and adjustable tension to the guide wheel 25, ensuring that the machining rope 28 remains taut throughout the entire loop. This is crucial for ensuring machining accuracy, improving machining efficiency, and preventing wire breakage.

[0041] The processing rope 28 is wound around all four guide wheels 25 in sequence to form a closed loop. The vertical section of the rope exposed outside the housing 22 and located between the upper and lower guide wheels 25 constitutes the effective processing area of ​​the equipment.

[0042] Workflow:

[0043] When the equipment is working, the blade 11 to be processed is first placed on the placement seat 19 of the fixture assembly and quickly clamped and fixed by multiple elbow clamps 20. The operator selects or writes a processing program through the touch screen. After starting, the control system coordinates the X-axis and Y-axis drive motors to move the blade 11 on the fixture assembly to the predetermined processing start position, so that the part to be processed is aligned with the effective processing area of ​​the wire frame assembly. Then, the drive motor 27 starts, driving the processing rope 28 to circulate at high speed. At the same time, the X-axis, Y-axis and rotary motor 21 are linked according to the preset program trajectory, driving the profile surface of the blade 11 to be processed to perform relative feed movement along the high-speed moving processing rope 28, thereby realizing the cutting of the blade 11.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A blade processing device, characterized in that, Includes a base (10), a movable component is mounted on the top of the base (10), a clamping component for clamping the blade (11) is fixed on the top of the movable component, a wire frame assembly is fixed on the base (10), and a processing rope (28) for processing the blade (11) is provided on the wire frame assembly. The wire frame assembly includes a housing (22) fixed on the base (10), at least four guide wheels (25) rotatably mounted inside the housing (22), a drive motor (27) mounted inside the housing (22), the output end of the drive motor (27) being fixedly connected to one of the guide wheels (25), and the processing rope (28) being wound around the at least four guide wheels (25) to form a closed motion loop.

2. The blade processing equipment according to claim 1, characterized in that, The moving component includes an X-axis lead screw (12) mounted on the base (10) and at least one linear slide rail (18). The X-axis slider (13) and the slider on the linear guide rail (18) are both fixed with connecting plates (14).

3. The blade processing equipment according to claim 2, characterized in that, The moving component also includes a Y-axis lead screw (15) disposed on the top of the connecting plate (14) and at least one linear slide rail (18); The Y-axis slider (16) and the slider on the linear guide rail (18) of the Y-axis lead screw (15) are both fixed with mounting plates (17), and the clamp assembly is fixed on the mounting plate (17).

4. The blade processing equipment according to claim 3, characterized in that, The clamping assembly includes a placement seat (19) rotatably disposed on the mounting plate (17), the placement seat (19) being used to support the blade (11); A rotary motor (21) is fixed on the mounting plate (17). The output end of the rotary motor (21) is connected to the placement seat (19) to drive the placement seat (19) to rotate. At least one elbow clamp (20) is provided on the placement seat (19).

5. The blade processing equipment according to claim 1, characterized in that, The wire frame assembly also includes a tensioner (26) mounted on the inner wall of the housing (22), the tensioner (26) being connected to one of the guide wheels (25) not connected to the drive motor (27), for applying and maintaining a preset tension force on the processing rope (28).

6. The blade processing equipment according to claim 1, characterized in that, A touch screen mounting box (23) is fixed on the outer wall of the housing (22), and a three-color light (24) for indicating the status of the device is fixed on the touch screen mounting box (23).

7. The blade processing equipment according to claim 1, characterized in that, The processing rope (28) forms a processing section on the wire frame assembly, and moves relative to the surface to be processed of the blade (11) which moves in coordination with the moving assembly and the clamping assembly, so as to process the blade (11).

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