Linear cutting clamping tool capable of easily clamping turbine blade

Abstract

The utility model discloses a linear cutting clamping tool easy to clamp a turbine blade, which comprises a clamping tool body installed in a working area of a linear cutting machine tool, the clamping tool body comprises a base, an object carrying plate is arranged on the base, a locking cavity used for clamping the turbine blade is arranged on the top surface of the object carrying plate, a clamping assembly is arranged in the locking cavity, and the clamping assembly is connected with the clamping tool body. And after being electrified, the clamping assembly is converted into a physical form and clamps the turbine blade. According to the tool, the turbine blade can be rapidly and conveniently clamped, the clamping time is saved, and the cutting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of turbine blade clamping technology, specifically to a wire EDM clamping fixture that facilitates the clamping of turbine blades. Background Technology

[0002] In the post-processing cutting of aero-engine blades, wire EDM has become one of the main processing methods for such parts due to its advantages such as small processing deformation, high precision, and high degree of automation. To complete the cutting with high quality and efficiency, the matching cutting fixture is particularly important. During the wire EDM process of the blade, the operator only needs to confirm whether the product is clamped in place and the corresponding processing path and parameters. The whole operation process is relatively simple. At present, the processing time of small blades is relatively short, requiring frequent clamping. However, the existing fixtures are relatively troublesome to clamp turbine blades, which takes a lot of time and leads to a reduction in cutting efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a wire EDM clamping fixture that is easy to clamp turbine blades, which can quickly and conveniently clamp turbine blades, save clamping time, and improve cutting efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] A wire EDM clamping fixture for easy turbine blade clamping includes a clamping fixture body installed in the working area of ​​a wire EDM machine. The clamping fixture body includes a base, a carrying plate on the base, a locking cavity for clamping turbine blades on the top surface of the carrying plate, and a clamping component inside the locking cavity. When the clamping component is energized, it changes its physical form and clamps the turbine blades.

[0006] In this solution, the clamping fixture body is installed within the working area of ​​the wire EDM machine to ensure that the turbine blades can be stably fixed during wire EDM operations. The base serves as the basic support structure for the fixture, and the carrier plate is installed on the base to hold the turbine blades. A locking cavity is opened on the top surface of the carrier plate to accommodate the clamping assembly. The clamping assembly is located in the locking cavity and changes its physical form when energized to clamp the turbine blades. Once the power is off, the clamping assembly returns to its original form, releasing the clamping force on the blades. Through simple energizing and de-energizing operations, the clamping and releasing of the turbine blades can be achieved, greatly improving the clamping efficiency of the turbine blades, saving clamping time, and increasing cutting efficiency.

[0007] Optionally, the clamping assembly includes two independent clamping parts disposed within the locking mechanism. The opposing surfaces of the two clamping parts are clamping surfaces for clamping the turbine blade. The clamping surfaces of the two clamping parts are in contact with each other. The blade root of the turbine blade is inserted between the two clamping parts. The clamping surfaces of the two clamping parts wrap around the blade root of the turbine blade. When energized, the two clamping parts change their physical form and clamp the turbine blade.

[0008] Optionally, the clamping part includes an electrotransformer and an elastic membrane. The elastic membrane is connected to the inner wall of the locking cavity and forms a sealed cavity. The electrotransformers of the two clamping parts are filled in the cavity. A closed coil is fixed on the inner wall of the cavity. The closed coil is connected to an external power source, and a switch button is provided on the connected circuit.

[0009] Optionally, the carrier plate is provided with a through hole that allows the blade root of the turbine blade to pass through. The through hole is connected to the locking cavity and is located directly above the contact position of the two clamping parts.

[0010] Optionally, the elastic membrane is made of rubber.

[0011] Optionally, the electromorphic substance is lime, carbon powder, or gypsum. When the closed coil is energized, the electromorphic substance changes from a liquid state to a solid state, and when the power is turned off, it changes from a solid state to a liquid state.

[0012] Optionally, multiple locking cavities are provided at uniform intervals along the length of the carrier plate.

[0013] Optionally, the loading plate is provided with fixing plates on both sides, and the fixing plates are bolted to the base.

[0014] Optionally, the bottom of the carrier plate is provided with a rotating shaft, and the top of the base is provided with a rotating cavity adapted to the rotating shaft, with the rotating shaft inserted into the rotating cavity.

[0015] The beneficial effects of this utility model are:

[0016] In this invention, the turbine blades are clamped by changing their physical form after being powered on. Once the power is cut off, the clamping assembly returns to its original form, releasing the clamping force on the blades. By simply turning the power on and off, the turbine blades can be clamped and released, which greatly improves the clamping efficiency of the turbine blades, saves clamping time, and improves cutting efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure without the elastic membrane installed.

[0019] Figure 3 This is a schematic diagram of the distribution structure of the threaded holes on the base.

[0020] Reference numerals: 1-base, 2-carrying plate, 3-cavity, 4-closed coil, 5-current variant, 6-elastic membrane, 7-through hole, 8-turbine blade, 9-blade root, 10-bolt, 11-fixing plate, 12-shaft, 13-rotating cavity, 14-switch button, 15-locking cavity, 16-threaded hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] A wire EDM clamping fixture for easy turbine blade clamping includes a clamping fixture body installed in the working area of ​​a wire EDM machine. The clamping fixture body includes a base 1, a carrying plate 2 on the base 1, a locking cavity 15 for clamping turbine blades 8 on the top surface of the carrying plate 2, and a clamping assembly inside the locking cavity 15. When the clamping assembly is powered on, it changes its physical form and clamps the turbine blades 8.

[0026] In this embodiment, as Figure 1As shown, the clamping fixture body is installed within the working area of ​​the wire EDM machine. The installation position of the clamping fixture can be freely selected according to the cutting position, model, and type of the wire EDM machine, ensuring that the turbine blade 8 can be stably fixed during wire EDM operation. The base 1 is the basic support structure of the fixture. The carrier plate 2 is installed on the base 1 for placing the turbine blade 8. The locking cavity 15 is opened on the top surface of the carrier plate 2 to accommodate the clamping assembly. The clamping assembly is located in the locking cavity 15. After being powered on, it changes its physical form to clamp the turbine blade 8. Once the power is cut off, the clamping assembly returns to its original form, releasing the clamping force on the blade. Through simple power-on and power-off operations, the clamping and release of the turbine blade 8 can be achieved, which greatly improves the clamping efficiency of the turbine blade 8, saves clamping time, and improves cutting efficiency.

[0027] Furthermore, the clamping assembly includes two independent clamping parts disposed within the locking mechanism. The opposing surfaces of the two clamping parts are clamping surfaces for clamping the turbine blade 8. The clamping surfaces of the two clamping parts are in contact with each other. The blade root 9 of the turbine blade 8 is inserted between the two clamping parts. The clamping surfaces of the two clamping parts wrap around the blade root 9 of the turbine blade 8. After being energized, the two clamping parts change their physical form and clamp the turbine blade 8.

[0028] Furthermore, the clamping part includes a current transformer 5 and an elastic membrane 6. The elastic membrane 6 is connected to the inner wall of the locking cavity 15 and forms a sealed cavity 3. The current transformers 5 of the two clamping parts are filled in the cavity 3. A closed coil 4 is fixed on the inner wall of the cavity 3. The closed coil 4 is connected to an external power source, and a switch button 14 is provided on the connected circuit.

[0029] Furthermore, the carrier plate 2 is provided with a through hole 7 that allows the blade root 9 of the turbine blade 8 to pass through. The through hole 7 is connected to the locking cavity 15 and is located directly above the contact position of the two clamping parts. The through hole 7 can be circular or square.

[0030] Furthermore, the elastic membrane 6 is made of rubber.

[0031] Furthermore, the current variant 5 is lime, carbon powder, or gypsum. When the closed coil 4 is energized, the current variant 5 changes from a liquid state to a solid state, and when the power is turned off, it changes from a solid state to a liquid state.

[0032] Working principle of the clamping assembly: The depth of the locking cavity 15 is greater than the length of the blade root 9 of the turbine blade 8. The elastic diaphragm 6 made of rubber is fixedly connected to the side wall of the locking cavity 15, such as... Figure 1 and Figure 2As shown, a sealed cavity 3 is formed between the elastic diaphragm 6 and the inner wall of the locking cavity 15. The locking cavity 15 contains two such cavities 3, each filled with an electric current transformer 5. The elastic diaphragm 6 and the electric current transformer 5 together form a clamping part. Two identical clamping parts exist within the same locking cavity 15, with the opposing surfaces of the two clamping parts forming the clamping surfaces, i.e., the sides of the elastic diaphragm 6. A closed coil 4 is fixed to the inner wall of the cavity 3. The closed coil 4 is connected to an external power source, and the current to the closed coil 4 is controlled by a switch button 14. Under normal conditions, the elastic diaphragms 6 of the two clamping parts are in contact with each other and are subject to a certain degree of compression under the action of the electric current transformer 5. During use, the turbine blade... The blade root 9 of blade 8 is inserted between the two clamping parts through the through hole 7. The blade root 9 pushes the elastic membrane 6 to both sides, causing the elastic membrane 6 to deform and fit around the blade root 9. Pressing the switch button 14 energizes the closed coil 4. Under the action of the electric field, the current variant 5 changes from liquid to solid within a few milliseconds, thus clamping the blade root 9 and the blade. Next, the turbine blade 8 can be cut. After cutting, pressing the switch button 14 again de-energizes the closed coil 4, and the current variant 5 quickly changes from solid to liquid, releasing the clamping of the turbine blade 8. The turbine blade 8 can then be removed. The entire clamping process is simple and quick, greatly saving clamping time and improving cutting efficiency.

[0033] Furthermore, the locking cavities 15 are provided at multiple even intervals along the length of the carrying plate 2.

[0034] Specifically, multiple locking chambers 15 allow for the simultaneous clamping of multiple turbine blades 8, thereby processing more workpieces in a single wire EDM operation and significantly improving production efficiency. If a locking chamber 15 or clamping assembly malfunctions, it can be maintained and replaced individually without affecting the normal use of other locking chambers 15, reducing downtime and maintenance costs. Furthermore, multiple locking chambers 15 correspond to multiple switch buttons 14, so that the clamping part within each locking chamber 15 can be controlled by an independent switch button 14.

[0035] Furthermore, the loading plate 2 is provided with fixing plates 11 on both sides, and the fixing plates 11 are connected to the base 1 with bolts 10.

[0036] Furthermore, the bottom of the carrying plate 2 is provided with a rotating shaft 12, and the top of the base 1 is provided with a rotating cavity 13 adapted to the rotating shaft 12, and the rotating shaft 12 is inserted into the rotating cavity 13.

[0037] Specifically, the fixing plate 11 is connected to the base 1 by bolts 10, ensuring a stable connection between the carrying plate 2 and the base 1. This connection method is not only robust but also easy to disassemble and reinstall, facilitating maintenance and replacement. The design of the rotating shaft 12 at the bottom of the carrying plate 2 and the rotating cavity 13 at the top of the base 1 allows the carrying plate 2 to rotate within a certain range. This design is very useful in the wire EDM machining of turbine blades 8, especially when it is necessary to adjust the angle or direction of the blade for specific cutting operations. By rotating the carrying plate 2, different parts of the blade can be accessed more easily, improving the flexibility and efficiency of the machining process. Figure 3 As shown, multiple threaded holes 16 for bolt 10 connection need to be opened on the base 1 to accommodate the fixing of the carrier plate 2 after rotation. The multiple threaded holes 16 are opened in the circumference of the rotating cavity 13.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A wire EDM clamping fixture for easy turbine blade clamping, comprising a clamping fixture body installed in the working area of ​​a wire EDM machine, characterized in that, The clamping fixture body includes a base (1), a carrying plate (2) is provided on the base (1), and a locking cavity (15) for clamping the turbine blade (8) is provided on the top surface of the carrying plate (2). A clamping component is provided in the locking cavity (15). After the clamping component is powered on, it changes its physical form and clamps the turbine blade (8).

2. The wire EDM clamping fixture for easy turbine blade clamping according to claim 1, characterized in that, The clamping assembly includes two independent clamping parts disposed within the locking mechanism. The opposing surfaces of the two clamping parts are clamping surfaces for clamping the turbine blade (8). The clamping surfaces of the two clamping parts are in contact with each other. The blade root (9) of the turbine blade (8) is inserted between the two clamping parts. The clamping surfaces of the two clamping parts wrap around the blade root (9) of the turbine blade (8). After being powered on, the two clamping parts change their physical form and clamp the turbine blade (8).

3. The wire EDM clamping fixture for easy turbine blade clamping according to claim 2, characterized in that, The clamping part includes a current transformer (5) and an elastic membrane (6). The elastic membrane (6) is connected to the inner wall of the locking cavity (15) and forms a sealed cavity (3). The current transformers (5) of the two clamping parts are filled in the cavity (3). A closed coil (4) is fixed on the inner wall of the cavity (3). The closed coil (4) is connected to an external power source, and a switch button (14) is provided on the connected circuit.

4. The wire EDM clamping fixture for easy turbine blade clamping according to claim 2, characterized in that, The carrier plate (2) is provided with a through hole (7) that allows the blade root (9) of the turbine blade (8) to pass through. The through hole (7) is connected to the locking cavity (15) and is located directly above the contact position of the two clamping parts.

5. A wire EDM clamping fixture for easy turbine blade clamping according to claim 3, characterized in that, The elastic membrane (6) is made of rubber.

6. A wire EDM clamping fixture for easy turbine blade clamping according to claim 3, characterized in that, The current variant (5) is lime, carbon powder, or gypsum. When the closed coil (4) is energized, the current variant (5) changes from liquid to solid. When the power is turned off, it changes from solid to liquid.

7. A wire EDM clamping fixture for easy turbine blade clamping according to claim 1, characterized in that, The locking cavities (15) are evenly spaced along the length of the carrier plate (2).

8. A wire EDM clamping fixture for easy turbine blade clamping according to claim 7, characterized in that, The loading plate (2) has fixing plates (11) on both sides, and the fixing plates (11) are bolted (10) to the base (1).

9. A wire EDM clamping fixture for easy turbine blade clamping according to claim 8, characterized in that, The bottom of the loading plate (2) is provided with a rotating shaft (12), and the top of the base (1) is provided with a rotating cavity (13) adapted to the rotating shaft (12). The rotating shaft (12) is inserted into the rotating cavity (13).

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