A uniform full-coverage continuous oil injection electrode device

Abstract

The present invention relates to a uniform full-coverage continuous oil spraying electrode device for an electric machining machine tool, comprising a first pressing block, a second pressing block, a sealing plate and an electrode plate. After the first pressing block is connected to the second pressing block, an open oil storage chamber is formed. The top of the oil storage chamber is press-connected with a sealing plate, and the sealing plate is fixedly connected to the upper side wall of the oil storage chamber. The bottom of the oil storage chamber forms a pressing portion for connecting the electrode plate. Oil spray ports are uniformly arranged along the connecting surface of the electrode plate on the pressing portion. The oil spray ports can discharge the oil in the oil storage chamber. When the device is in use, the oil spray ports are the only outlet of the internal oil circuit of the oil storage chamber. The uniform arrangement can ensure that the oil discharged from the oil spray ports is evenly sprayed onto the entire electrode plate, which can solve the problem of uneven flushing of electric spark oil or local leakage and flushing in the electrode discharge area.

Description

Technical Field

[0001] The present invention relates to the field of tooling design in the mechanical processing of aircraft engine blades, and specifically to a structural research invention for electrically machining arc groove electrodes to achieve a continuous oil injection function with uniform full coverage of the discharge area. Background Art

[0002] In electromechanical machining (EDM) processes, electrodes are typically discharged using either oil-immersed discharge areas or oil-sprayed discharge areas independently through pipes. The first method suffers from poor oil flowability, resulting in ineffective flushing of the discharge area. The second method can lead to uneven oil flushing or localized leakage of the discharge area. Neither method is ideal for EDM applications, as carbon deposits and fires can easily form in the discharge area, resulting in excessive surface roughness, expansion of the heat-affected zone, and even uneven discharge gaps. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a uniform full-coverage continuous oil spraying electrode device to solve the problem of uneven oil flushing of electric sparks or local leakage flushing of the electrode discharge area.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A uniform, full-coverage, continuous oil-spraying electrode device for an electrical machining center is characterized in that it comprises: a first pressing block, a second pressing block, a sealing plate, and an electrode plate. The first pressing block is connected to the second pressing block to form an open oil storage chamber. The top of the oil storage chamber is crimped with a sealing plate, which is fixedly connected to the top of the side wall of the oil storage chamber. The bottom of the oil storage chamber forms a pressing portion for connecting the electrode plate. Oil spray ports are evenly arranged along the connecting surface of the electrode plate on the pressing portion. An oil inlet for oil supply is provided on the side of the oil storage chamber.

[0006] The beneficial effects of the present invention are as follows: an oil storage chamber is provided on the device, an electrode plate is connected to the bottom plate of the oil storage chamber, the electrode plate is directly connected to the bottom of the oil storage chamber, and oil spray ports are evenly provided at the connection positions, the oil spray ports can discharge the oil from the oil storage chamber, and when the device is in use, the oil spray ports are the only outlet of the internal oil circuit of the oil storage chamber. The uniform setting can ensure that the oil discharged from the oil spray ports is evenly sprayed onto the entire electrode plate, which can solve the problem of uneven flushing of electric spark oil or local leakage and flushing in the electrode discharge area.

[0007] Furthermore, the first compression block includes a first base plate and a first side plate. The first base plate has a connecting surface with regular protrusions and grooves, while the connecting surface of the first side plate is a smooth surface. The second compression block includes a second base plate and a second side plate. The connecting surface of the second base plate has regular protrusions and grooves that correspond to the protrusions and grooves on the first base plate, while the connecting surface of the first side plate is a smooth surface. The protrusions and grooves are provided to form the oil injection port, while the smooth surface ensures a tight connection and reduces oil leakage.

[0008] Furthermore, in order to facilitate connection to an electric machining center for use, a connecting plate is provided on the side of the second side plate away from the oil storage chamber, and a connecting rod for connecting to the electric machining center is fixedly provided on the connecting plate toward the side of the bottom plate away from the oil storage chamber.

[0009] Furthermore, in order to facilitate the oil supply system to input oil into the oil storage chamber, the oil inlet is detachably connected to the second side plate, and an oil inlet pipe is provided on the side of the oil inlet away from the oil storage chamber for connecting to the oil supply system.

[0010] Furthermore, in order to ensure that the oil storage chamber is sealed except for the oil injection port, a lateral sealing gasket is provided at the connection between the connecting surface of the first side plate and the connecting surface of the second side plate, and the lateral sealing gasket covers the entire connecting surface of the first side plate and the connecting surface of the second side plate.

[0011] Furthermore, to ensure that the sealing plate is detachable and facilitate the inspection of the oil storage chamber at the rear, connecting screws are provided on the sealing plate and locked to the second side plate and the upper side surface of the second side plate.

[0012] Furthermore, in order to ensure that the oil storage chamber will not overflow from the position where the sealing plate is connected to the second side plate and the upper side of the second side plate, a sealing gasket is provided on the side of the sealing plate connected to the second side plate and the upper side of the second side plate, and the sealing gasket covers the entire top plate.

[0013] Furthermore, in order to fix the electrode plate on the device and ensure that the electrode plate can be brushed evenly, the protrusion and the groove portion form a pressing portion of the electrode plate, the top of the protrusion is pressed against the surface of the electrode plate, and the groove forms an oil injection port.

[0014] Furthermore, in order to ensure that the spark oil can fully cover the electrode plate, the opening of the oil injection port gradually becomes larger along the oil injection direction.

[0015] The advantages of adopting this further solution are: 1. The evenly spaced oil nozzles are located on the base plate where they connect to the electrode plate, ensuring uniform oil application. 2. Sealing gaskets are installed at all connections to prevent oil leakage from the oil reservoir except at the nozzles. 3. The oil inlet pipe and connecting rod are arranged in the same direction, which reduces the installation footprint and facilitates installation. 4. The oil nozzles gradually widen along the direction of the oil spray, ensuring that the entire electrode plate is flushed with spark plug oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a top view of the structure of an embodiment of the present invention with the top cover removed;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the entire device provided by an embodiment of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1-first pressing block, 101-first side plate, 102-first bottom plate, 2-second pressing block, 201-second side plate, 202-second bottom plate, 3-sealing plate, 4-electrode plate, 5-oil storage chamber, 6-oil injection port, 7-oil inlet, 8-connecting plate, 9-connecting rod, 10-oil inlet pipe, 11-side sealing gasket, 12-top sealing gasket, 13-connecting screws. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0021] Example 1

[0022] A uniform full coverage continuous oil spray electrode device, such as Figure 1-2 As shown, it is used for an electrical machining center, comprising: a first clamping block 1, a second clamping block 2, a sealing plate 3 and an electrode plate 4. The first clamping block 1 is connected to the second clamping block 2 to form an open oil storage chamber 5. The top of the oil storage chamber 5 is crimped with a sealing plate 3. The sealing plate 3 is fixedly connected to the top of the side wall of the oil storage chamber 5. The bottom of the oil storage chamber 5 forms a clamping portion for connecting the electrode plate 4. Oil spray ports 6 are evenly arranged along the connecting surface of the electrode plate 4 on the clamping portion; an oil inlet 7 for oil supply is arranged on the side of the oil storage chamber 5. In order to fix the electrode plate 4 on the device and ensure that the electrode plate 4 can be brushed evenly, the protrusion and the groove form the clamping portion of the electrode plate 4. The top of the protrusion is pressed against the surface of the electrode plate 4, and the groove forms the oil spray port 6.

[0023] The device can improve the ability of the electric spark oil to continuously spray and flush the discharge area without omission. The device integrates the electric machining oil injection system into the electrode device, and relies on the consistency of the oil injection port 6 and the electrode plate 4 itself to achieve uniform and full coverage of the discharge area and continuous flushing capability, avoiding the poor fluidity of the electric spark oil, uneven spraying or local leakage of spraying that causes carbon deposition or fire on the electrode during the previous immersion or independent oil pipe spraying processing method, ensuring the consistency of the discharge gap during the overall processing process, and improving the processing quality and efficiency of the electric machining.

[0024] An oil storage chamber 5 is provided on the device. The bottom plate of the oil storage chamber 5 is connected to the electrode plate 4. The electrode plate 4 is directly connected to the bottom of the oil storage chamber 5, and oil nozzles 6 are evenly provided at the connection positions. The oil nozzles 6 can discharge the oil from the oil storage chamber 5. When the device is in use, the oil nozzles 6 are the only outlet of the internal oil circuit of the oil storage chamber 5. The uniform setting can ensure that the oil discharged from the oil nozzles 6 is evenly sprayed to the entire electrode plate 4, which can solve the problem of uneven flushing of electric spark oil or local leakage and flushing in the electrode discharge area.

[0025] In this embodiment, the first clamping block 1 includes a first base plate 102 and a first side plate 101. Regular protrusions and grooves are provided on the connecting surface of the first base plate 102, and the connecting surface of the first side plate 101 is set as a smooth plane. The second clamping block 2 includes a second base plate 202 and a second side plate 201. Regular protrusions and grooves are provided on the connecting surface of the second base plate 202, which correspond to the protrusions and grooves on the first base plate 102, and the connecting surface of the first side plate 101 is set as a smooth plane. The protrusions and grooves are provided to form the oil injection port 6, and the smooth plane is to ensure that the connection position is tightly fitted to reduce oil leakage. In order to facilitate connection to the electric machining center for use, a connecting plate 8 is provided on the side of the second side plate 201 away from the oil storage chamber 5, and a connecting rod 9 for connecting to the electric machining center is fixedly provided on the connecting plate 8 toward the side of the base plate away from the oil storage chamber 5.

[0026] In this embodiment, in order to facilitate the oil supply system to input oil into the oil storage chamber 5, the oil inlet 7 is detachably connected to the second side plate 201, and an oil inlet pipe 10 is provided on the side of the oil inlet 7 away from the oil storage chamber 5 for connecting to the oil supply system.

[0027] In this embodiment, to ensure that the oil storage chamber 5 is sealed except for the oil injection port 6, a lateral sealing gasket 11 is provided at the connection between the connecting surface of the first side panel 101 and the connecting surface of the second side panel 201. The lateral sealing gasket 11 covers the entire connecting surface of the first side panel 101 and the connecting surface of the second side panel 201. To ensure that the sealing plate 3 is removable, which facilitates the inspection of the oil storage chamber 5 at the rear and also facilitates the replacement of the top sealing gasket 12, the sealing plate 3 is provided with connecting screws 13 that are locked to the second side panel 201 and the upper side of the second side panel 201. To ensure that the oil storage chamber 5 does not overflow from the position where the sealing plate 3 connects to the upper side of the second side panel 201 and the upper side of the second side panel 201, a sealing gasket is provided on the side of the sealing plate 3 that connects to the upper side of the second side panel 201 and the upper side of the second side panel 201, and the sealing gasket covers the entire top plate.

[0028] A number of fan-shaped oil nozzles 6 are opened on the contact surface between the first clamping block 1, the second clamping block 2 and the electrode plate 4. These oil nozzles 6 are fan-shaped and face downward. Sufficient space is reserved above the electrode plate 4 and the oil nozzles 6 to form an oil storage chamber 5. Except for the oil nozzle 6 at the bottom, the rest of the oil storage chamber 5 is completely sealed by the side sealing gasket 11, the top sealing gasket 12 and the sealing plate 3. An oil inlet pipe 10 is installed on the first clamping block 1 on the side wall of the oil storage chamber 5, integrating a set of oil inlet, oil storage and flushing functions on the electrode plate 4, thereby achieving the function of uniform full coverage and continuous flushing of the electrode plate 4.

[0029] A number of oil injection ports 6 are opened on the contact surface between the first clamping block 1, the second clamping block 2 and the electrode plate 4. These oil injection ports 6 are fan-shaped and face downward. Sufficient space is reserved above the electrode plate 4 and the oil injection ports 6 to form an oil storage chamber 5. Except for the oil injection ports 6 at the bottom, the rest of the oil storage chamber 5 is completely sealed by the side sealing gasket 11, the top sealing gasket 12 and the sealing plate 3. An oil inlet pipe 10 is installed on the second clamping block 2 on the side wall of the oil storage chamber 5.

[0030] The present invention cleverly utilizes the shape of the electrode itself. The first pressing block 1 and the second pressing block 2 form an oil storage chamber 5 directly above the electrode plate 4. The oil injection ports 6 are evenly distributed according to the shape of the electrode. At the same time, the fan-shaped design of each oil injection port 6 integrates a set of oil inlet, oil storage, and oil injection functions on the electrode device, realizing the uniform full coverage and continuous flushing function of the electric spark oil.

[0031] The main structural materials are as follows: the first clamping block 1, the oil inlet pipe 10, the second clamping block 2, the sealing plate 3 and other materials are all selected from 45 steel with moderate strength and processing difficulty, and the surface is heat treated to about HRC40; the standard connecting rod 9 is made of CrWMn material, and the surface is heat treated to about HRC58; the electrode plate 4 is made of copper material with good discharge performance and good processing technology; the side sealing gasket 11 and the top surface sealing gasket 12 are selected from nitrile rubber sheets, which have good sealing performance, strong oil corrosion resistance and are inexpensive.

[0032] Working principle of current transfer: The entire electrode is connected to the EDM machine tool by a standard connecting rod 9. The discharge area is directly below the electrode plate 4. The current is transferred to the electrode plate 4 through the standard connecting rod 9, the first pressing block 1 and the second pressing block 2, completing the current transfer function.

[0033] The working principle of oil spray flushing: the external oil supply system is connected to the oil inlet pipe 10. When working, oil is fully passed into the oil storage chamber 5 through the oil inlet pipe 10, and the oil nozzles 6 on both sides of the electrode plate 4 at the bottom of the oil storage chamber 5 begin to flush downward. When the oil volume in the oil storage chamber 5 is sufficient, all the oil nozzles 6 will continue to spray oil; due to the fan-shaped design of the oil nozzles 6, the oil agent sprayed downward through the oil nozzles 6 will spread to both sides. At the intersection of the oil curtain above the electrode discharge area, the spark oil of each oil nozzle 6 begins to connect together to form an oil curtain without dead angles, which continuously flushes the discharge area of ​​the electrode plate 4 in a uniform and full-coverage manner along the front and back surfaces of the electrode.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0038] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0039] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A uniform full-coverage continuous oil spraying electrode device for an electrical machining machine tool, characterized in that: include: A first pressing block (1), a second pressing block (2), a sealing plate (3) and an electrode plate (4); the first pressing block (1) and the second pressing block (2) are connected to form an oil storage chamber (5) with a top opening; a sealing plate (3) is crimped to the top opening of the oil storage chamber (5); a pressing portion for crimping the electrode plate (4) is formed at the bottom of the oil storage chamber (5); a plurality of oil injection ports (6) are evenly arranged on the pressing portion along the extension direction of the electrode plate (4); and an oil inlet (7) for supplying oil is provided on the side wall of the oil storage chamber (5); The first pressing block (1) comprises a first bottom plate (102) and a first side plate (101) connected in an integral manner. The first bottom plate (102) and the first side plate (101) are arranged vertically and are integrally formed. The first bottom plate (102) is provided with first protrusions and first grooves arranged alternately on a connection surface facing away from the first side plate. The connection surface of the first bottom plate corresponds to the bottom of the second pressing block and is pressed against the electrode plate (4) to form an oil injection port. The connection surface of the first side plate (101) is provided as a smooth plane and is sealed to the second pressing block.

2. The electrode device for uniform full coverage continuous oil injection according to claim 1, characterized in that: The second pressing block (2) comprises a second bottom plate (202) and a second side plate (201) connected in an integral manner; the second bottom plate (202) is provided with alternately arranged second protrusions and second grooves on a connection surface facing away from the second side plate; the second protrusions and second grooves are respectively provided corresponding to the first protrusions and first grooves and are pressed against the electrode plate to form a plurality of oil injection ports; the connection surface of the second side plate (201) is provided as a smooth plane and is sealed to the connection surface of the first side plate (101).

3. The electrode device for uniform full coverage continuous oil injection according to claim 2, characterized in that: A connecting plate (8) is provided on the side of the second side plate (201) away from the oil storage chamber (5), and a side of the connecting plate (8) close to the sealing plate is fixedly provided for connecting to a connecting rod (9) of an electric machining center.

4. The electrode device for uniform full coverage continuous oil injection according to claim 2, characterized in that: The oil inlet (7) is detachably connected to the second side plate (201), and an oil inlet pipe (10) is provided on a side of the oil inlet (7) away from the oil storage chamber (5) for connecting to an oil supply system.

5. The electrode device for uniform full coverage continuous oil injection according to claim 2, characterized in that: A lateral sealing gasket (11) is provided at the connection between the connection surface of the first side panel (101) and the connection surface of the second side panel (201), and the lateral sealing gasket (11) covers the entire connection surface of the first side panel (101) and the connection surface of the second side panel (201).

6. The electrode device for uniform full coverage continuous oil spraying according to claim 2, characterized in that: The sealing plate (3) is provided with connecting screws (13) which are locked to the second side plate (201) and the upper side surface of the second side plate (201).

7. The electrode device for uniform full coverage continuous oil spraying according to claim 6, characterized in that: A top surface sealing gasket (12) is provided on one side of the sealing plate (3) connected to the second side plate (201) and the upper side surface of the second side plate (201), and the top surface sealing gasket (12) covers the entire sealing plate (3).

8. The electrode device for uniform full coverage continuous oil spraying according to claim 2, characterized in that: The first protrusion and the second protrusion are respectively fixed on the surface of the electrode plate (4) and pressed tightly, and the first groove and the second groove respectively form oil injection ports (6) on both sides of the electrode plate.

9. The electrode device for uniform full coverage continuous oil injection according to claim 2, characterized in that: The oil injection port (6) gradually becomes larger along the oil passage ejection direction.

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