Integral type radial diffuser with screw seat and machining equipment of integral type radial diffuser

Abstract

The invention provides an integral radial diffuser with a screw seat and machining equipment of the integral radial diffuser, and relates to the technical field of aero-engines, the integral radial diffuser comprises an impeller, the impeller is composed of a front cover, a screw seat body, blades and a rear cover, the screw seat body is circumferentially distributed on the outer surface of the front cover, and the blades are circumferentially distributed between the front cover and the rear cover. When the machining equipment is used, the collecting box is fixed to the outer side of the supporting column and located below a machined workpiece, cooling liquid waste liquid and metal chippings generated in the machining process can flow into the collecting box along with flowing of the cooling liquid waste liquid, and the metal chippings in the waste liquid are filtered through a filter screen on a filter screen frame; and cooling liquid and metal scraps are prevented from entering the machining equipment, the metal scraps can be conveniently cleaned by taking down the collecting box, and the convenience of the machining equipment in use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aero-engines, and particularly relates to an integral radial diffuser with a screw base and its processing equipment. Background Technique

[0002] With the invention of aero-engines and the rapid development of their applications and technologies to date, the structural designs of various parts have been continuously improved and perfected. The radial diffuser has always been an important part in aero-engines, which is used to decelerate and pressurize the high-speed air flow at the compressor outlet, reduce the total pressure loss in the combustion chamber, stabilize combustion, and thus improve the engine efficiency.

[0003] When machining the radial diffuser, a turning and milling equipment is required to perform fine machining on the blades and chutes of the diffuser. During the machining process of the radial diffuser by the processing equipment, it is necessary to continuously spray coolant on the milling cutter and the workpiece surface, which is convenient for flushing away the metal chips on the workpiece surface and cooling the milling cutter at the same time. However, the coolant will carry the metal chips into the interior of the processing equipment, and the metal chips are likely to remain at the corners inside the processing equipment, resulting in the problem of inconvenient cleaning of the processing equipment. Summary of the Invention

[0004] The object of the present invention is to solve the problem that during the machining process of the radial diffuser by the processing equipment, it is necessary to continuously spray coolant on the milling cutter and the workpiece surface, which is convenient for flushing away the metal chips on the workpiece surface and cooling the milling cutter at the same time. However, the coolant will carry the metal chips into the interior of the processing equipment, and the metal chips are likely to remain at the corners inside the processing equipment, resulting in the problem of inconvenient cleaning of the processing equipment. Therefore, an integral radial diffuser with a screw base and its processing equipment are proposed.

[0005] To achieve the above object, the present invention adopts the following technical solutions: An integral radial diffuser with a screw base and its processing equipment, including:

[0006] A machine body, which is placed on the ground and used to carry the whole processing equipment;

[0007] A sliding seat, which slides on the surface of the machine body and is used to install a support column. A driving motor and a lead screw for driving the sliding seat to move are arranged on the outer surface of the machine body. The servo motor is operated to drive the lead screw to rotate to control the sliding seat to move on the surface of the lead screw and the machine body. A collecting device for collecting chips and coolant during the processing is arranged on the outer surface of the sliding seat;

[0008] A processing head, which is installed on one side of the machine body and used to machine the radial diffuser. The processing head includes a base that can move on the surface of the machine body, an arm for controlling the rotation and adjusting the angle of the milling cutter, and a milling cutter for milling the surface of the radial diffuser. A delivery pipe for delivering coolant is also arranged on the outer surface of the processing head.

[0009] Preferably, the collecting device includes:

[0010] A collar, the outer surface of the collar is fixedly connected with a collecting box, a drain pipe is arranged at the bottom end of the collecting box, the size and shape of the inner ring of the collar are adapted to the size and shape of the outer surface of the support column, and slots are opened on both sides of the inner wall of the collecting box;

[0011] A filter screen frame, a filter screen is arranged on the surface of the filter screen frame, plug blocks are respectively fixedly connected to both sides of the filter screen frame, and the plug blocks are adapted to the slots. The plug blocks are inserted into the slots to install the filter screen frame;

[0012] An arc-shaped plate, the arc-shaped plate is fixed on one side of the bottom end of the collecting box, a screw rod is threadedly connected to the bottom end of the collecting box, and one end of the screw rod is rotatably connected with a clamping plate.

[0013] The effects achieved by the above components are as follows: When using a processing device to process the impeller of a radial diffuser, first insert the plug blocks on both sides of the filter screen frame into the slots on both sides of the inner wall of the collecting box to install the filter screen frame inside the collecting box. Then, put the collar on the surface of the support column from top to bottom, so that the inner side of the arc-shaped plate at the bottom end of the collecting box fits against the outer surface of the support column. Subsequently, rotate the screw rod to control the movement of the screw rod on one side of the bottom end of the collecting box, drive the clamping plate to slide towards the clamping plate on the bottom end of the collecting box, and clamp the side of the clamping plate away from the screw rod against the outer surface of the support column to fix the collecting box on the outer side of the top end of the support column. Then, connect the coolant receiving pipe to one end of the drain pipe at the bottom end of the collecting box. Subsequently, put the impeller on the outer side of the top end of the support column to fix the position of the impeller. Control the driving motor at one end of the machine body to operate through the control box on one side of the machine body to drive the lead screw to rotate, so that the slide seat moves on the outer surface of the machine body to adjust the relative position between the impeller and the processing head. At the same time, operate the processing head so that the processing head controls the rotation and angle adjustment of the milling cutter through the machine arm and the driving device inside the machine body to mill the surface of the impeller. During the processing, the coolant is input into the conveying pipe through the pump inside the machine body, and is sprayed out from one end of the conveying pipe to cool the milling cutter and the surface of the impeller, and wash away the metal chips generated during the processing. The coolant and metal chips will enter the inside of the collecting box. The metal chips in the coolant are filtered through the filter screen on the surface of the filter screen frame, and the metal chips are blocked on the filter screen surface of the filter screen frame. The coolant will enter the inside of the collecting box and be discharged through the drain pipe at the bottom end of the collecting box through the pipeline. After the processing is completed, remove the impeller, then rotate the screw rod to control the clamping plate to move away from the arc-shaped plate to release the fixation of the collecting box on the outer surface of the support column, then take out the collecting box from bottom to top, and pull out the plug blocks on both sides of the filter screen frame from the slots to remove the filter screen frame, and clean the surface of the filter screen frame.

[0014] Preferably, a plurality of rubber protrusions are fixedly connected to one side of the clamping plate, and the protrusions are linearly distributed on one side of the clamping plate.

[0015] The effect achieved by the above components is that when the side of the clamping plate with rubber ridges is pressed against the outer surface of the support column to fix the position of the collection box, it is more stable and not prone to accidental sliding.

[0016] Preferably, one end of the screw rod away from the clamping plate is fixedly connected with an operating block, and protrusions are arranged on both sides of the operating block.

[0017] The effect achieved by the above components is that it is more convenient to hold the protrusions on both sides of the operating block to rotate the operating block to control the rotation of the screw rod and adjust the position of the clamping plate.

[0018] Preferably, two convex blocks are fixedly connected to the top end of the filter screen frame.

[0019] The effect achieved by the above components is that when removing the filter screen frame, it is more convenient to pinch the surfaces of the two convex blocks to pull up the filter screen frame and remove the filter screen frame.

[0020] Preferably, it further includes a radial diffuser, which includes an impeller. The impeller is composed of a front cover, a screw seat body, blades and a rear cover. The screw seat bodies are circumferentially distributed on the outer surface of the front cover, and the blades are circumferentially distributed between the front cover and the rear cover.

[0021] Preferably, the number of the blades is 19, and the throat diameter of the blades is Φ15mm.

[0022] Preferably, the wall thickness of the rear cover is 6mm.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0024] In the present invention, when machining the impeller of the radial diffuser using a processing device by setting up a collection device, first insert the inserts on both sides of the filter screen frame into the slots on both sides of the inner wall of the collection box to install the filter screen frame inside the collection box. Then, slip the collar downwards onto the surface of the support column, making the inner side of the arc-shaped plate at the bottom of the collection box fit against the outer surface of the support column. Subsequently, rotate the screw to control the movement of the screw on one side of the bottom of the collection box, driving the clamping plate to slide towards the clamping plate on the bottom of the collection box, and clamping the side of the clamping plate away from the screw against the outer surface of the support column to fix the collection box on the outer side of the top of the support column. Then, connect the coolant receiving pipe to one end of the drain pipe at the bottom of the collection box. Subsequently, slip the impeller onto the outer side of the top of the support column to fix the position of the impeller. Control the drive motor at one end of the machine body to operate through the control box on one side of the machine body to drive the lead screw to rotate, causing the slide seat to move on the outer surface of the machine body to adjust the relative position between the impeller and the processing head. At the same time, operate the processing head to control the rotation and angle adjustment of the milling cutter through the machine arm and the drive device inside the machine body to mill the surface of the impeller. During the processing, the coolant is input into the conveying pipe through the pump inside the machine body, and is ejected from one end of the conveying pipe to cool the milling cutter and the surface of the impeller, and wash away the metal chips generated during the processing. The coolant and metal chips will enter the inside of the collection box, and the metal chips in the coolant are filtered through the filter screen on the surface of the filter screen frame, blocking the metal chips on the filter screen surface of the filter screen frame. The coolant will enter the inside of the collection box and be discharged through the drain pipe at the bottom of the collection box via the pipeline. After the processing is completed, remove the impeller, then rotate the screw to control the clamping plate to move away from the arc-shaped plate to release the fixation of the collection box on the outer surface of the support column, and then remove the collection box from bottom to top, and pull out the inserts on both sides of the filter screen frame from the slots to remove the filter screen frame and clean the surface of the filter screen frame. Description of the Drawings

[0025] Figure 1 FIG. [X] is a three-dimensional structural schematic diagram of an integral radial diffuser with a screw seat and its processing equipment provided by the present invention;

[0026] Figure 2 FIG. [X] is a three-dimensional structural schematic diagram of the machine body in an integral radial diffuser with a screw seat and its processing equipment provided by the present invention;

[0027] Figure 3 FIG. [X] is a three-dimensional structural schematic diagram of the collection box in an integral radial diffuser with a screw seat and its processing equipment provided by the present invention;

[0028] Figure 4 FIG. [X] is a three-dimensional structural schematic diagram of the clamping plate in an integral radial diffuser with a screw seat and its processing equipment provided by the present invention;

[0029] Figure 5 FIG. [X] is a three-dimensional structural schematic diagram of the filter screen frame in an integral radial diffuser with a screw seat and its processing equipment provided by the present invention;

[0030] Figure 6 This invention provides a three-dimensional structural schematic diagram of the impeller in an integral radial diffuser with a screw seat and its processing equipment.

[0031] Legend: 1. Machine body; 2. Collection device; 3. Slide seat; 4. Support pillar; 5. Processing head; 6. Impeller; 21. Collar; 22. Collection box; 23. Slot; 24. Filter screen frame; 25. Insert block; 26. Arc plate; 27. Screw; 28. Clamp plate; 29. Rib; 210. Operation block; 211. Protrusion; 61. Front cover; 62. Screw seat body; 63. Blade; 64. Rear cover. Detailed implementation mode

[0032] Example 1, as Figure 1-2 shown, an integral radial diffuser with a screw seat and its processing equipment

[0033] comprises a machine body. The machine body 1 is placed on the ground to bear the whole processing equipment. The slide seat 3 slides on the surface of the machine body 1 for installing the support pillar 4. A driving motor and a lead screw for driving the slide seat 3 to move are arranged on the outer surface of the machine body 1. The servo motor operates to drive the lead screw to rotate to control the movement of the slide seat 3 on the lead screw and the surface of the machine body 1. A collection device 2 for collecting debris and coolant during the processing is arranged on the outer surface of the slide seat 3. The processing head 5 is installed on one side of the machine body 1 for processing the radial diffuser. The processing head 5 includes a base that can move on the surface of the machine body 1, an arm for controlling the rotation of the milling cutter and adjusting the angle of the milling cutter, and a milling cutter for milling the surface of the radial diffuser. A delivery pipe for delivering coolant is also arranged on the outer surface of the processing head 5.

[0034] Refer to Figure 2-5As shown in the figure, in this embodiment: The collection device 2 includes a collar 21. A collection box 22 is fixedly connected to the outer surface of the collar 21. A drain pipe is provided at the bottom end of the collection box 22. The size and shape of the inner circle of the collar 21 are adapted to the size and shape of the outer surface of the support column 4. Slots 23 are provided on both sides of the inner wall of the collection box 22. A filter screen is provided on the surface of the filter screen frame 24. Plug blocks 25 are fixedly connected to both sides of the filter screen frame 24 respectively. The plug blocks 25 are adapted to the slots 23. Inserting the plug blocks 25 into the slots 23 inside is used to install the filter screen frame 24. An arc-shaped plate 26 is fixed to one side of the bottom end of the collection box 22. A screw rod 27 is threadedly connected to the bottom end of the collection box 22. One end of the screw rod 27 is rotatably connected to a clamping plate 28. When using a processing device to process the impeller 6 of a radial diffuser, first insert the plug blocks 25 on both sides of the filter screen frame 24 into the slots 23 on both sides of the inner wall of the collection box 22 to install the filter screen frame 24 inside the collection box 22. Then, put the collar 21 on the surface of the support column 4 from top to bottom, so that the inner side of the arc-shaped plate 26 at the bottom end of the collection box 22 fits on the outer surface of the support column 4. Subsequently, rotate the screw rod 27 to control the movement of the screw rod 27 on one side of the bottom end of the collection box 22, driving the clamping plate 28 to slide towards the direction of the clamping plate 28 at the bottom end of the collection box 22, and clamping the side of the clamping plate 28 away from the screw rod 27 on the outer surface of the support column 4 to fix the collection box 22 on the outer side of the top end of the support column 4. Subsequently, connect the coolant receiving pipe to one end of the drain pipe at the bottom end of the collection box 22. Then, put the impeller 6 on the outer side of the top end of the support column 4 to fix the position of the impeller 6. Control the driving motor at one end of the machine body 1 to operate through the control box on one side of the machine body 1 to drive the lead screw to rotate, so that the sliding seat 3 moves on the outer surface of the machine body 1 to adjust the relative position between the impeller 6 and the processing head 5. At the same time, operate the processing head 5 so that the processing head 5 controls the milling cutter to rotate and adjust the angle through the machine arm and the driving device inside the machine body 1 to mill the surface of the impeller 6. During the processing, the coolant is input into the conveying pipe through the pump inside the machine body 1, and is sprayed out from one end of the conveying pipe to cool the milling cutter and the surface of the impeller 6, and wash away the metal chips generated during the processing. The coolant and metal chips will enter the inside of the collection box 22. The metal chips in the coolant are filtered through the filter screen on the surface of the filter screen frame 24, and the metal chips are blocked on the filter screen surface of the filter screen frame 24. The coolant will enter the inside of the collection box 22 and be discharged through the drain pipe at the bottom end of the collection box 22 through the pipeline. After the processing is completed, remove the impeller 6, and then rotate the screw rod 27 to control the clamping plate 28 to move away from the arc-shaped plate 26 to release the fixation of the collection box 22 on the outer surface of the support column 4. Then, take out the collection box 22 from bottom to top, and pull out the plug blocks 25 on both sides of the filter screen frame 24 from the slots 23 inside to remove the filter screen frame 24 and clean the surface of the filter screen frame 24. By providing the collection device 2, when using a processing device, fix the collection box 22 on the outer side of the support column 4 below the processed workpiece. The coolant waste liquid and metal chips generated during the processing will enter the inside of the collection box 22 along with the flow of the coolant waste liquid.The metal debris in the waste liquid is filtered through the filter screen on the filter screen frame 24 to prevent the coolant and metal debris from entering the processing equipment. Removing the collection box 22 facilitates the cleaning of the metal debris and improves the convenience of using the processing equipment.

[0035] Refer to Figure 2-5 As shown, in this implementation: A number of rubber ridges 29 are fixedly connected to one side of the clamping plate 28. The ridges 29 are linearly distributed on one side of the clamping plate 28. When pressing the side of the clamping plate 28 with the rubber ridges 29 against the outer surface of the support column 4 to fix the position of the collection box 22, it is more stable and not prone to accidental sliding. One end of the screw 27 away from the clamping plate 28 is fixedly connected with an operation block 210. There are protrusions on both sides of the operation block 210. Holding the protrusions on both sides of the operation block 210 can more conveniently rotate the operation block 210 to control the rotation of the screw 27 and adjust the position of the clamping plate 28. Two convex blocks 211 are fixedly connected to the top of the filter screen frame 24. When removing the filter screen frame 24, pinching the surfaces of the two convex blocks 211 can more conveniently pull up the filter screen frame 24 to remove the filter screen frame 24.

[0036] Example 2, as Figure 1 and Figure 6 shown, a radial diffuser includes an impeller 6. The impeller 6 is composed of a front cover 61, a screw seat body 62, blades 63 and a rear cover 64. The screw seat bodies 62 are circumferentially distributed on the outer surface of the front cover 61, and the blades 63 are circumferentially distributed between the front cover 61 and the rear cover 64;

[0037] The number of blades 63 is 19, and the throat diameter of the blades 63 is Φ15mm. This throat size can directly affect the engine performance. The chamfer at the air inlet edge of the blade extends into the air flow channel and intersects with the fillets at the leading edge and the root of the blade to form a complex curved surface. The fillets at the leading edge and the root of the blade 63 are smoothly and roundly transitioned with the rear cover 64. The internal flow channel is processed by combining the electrical discharge machining and the surface accuracy control technology to realize the machining of the complex curved surfaces of the channels and the inlet chamfers of the blades 63;

[0038] There are five screw seat body 62 structures on the front cover 61. The screw on the screw seat body 62 is M7*1 thread, and the fillet at the connection between the screw seat body 62 and the front cover 61 is R3. The overall radial diffuser can be connected to other parts through this thread structure;

[0039] The wall thickness of the rear cover 64 is 6mm, which makes the radial diffuser have sufficient stiffness, ensures the uniformity of the heights and areas of the channels of the radial diffuser, and can play a role in stabilizing the air flow.

[0040] Working principle: When machining the impeller 6 of the radial diffuser using a processing device, first insert the inserts 25 on both sides of the filter screen frame 24 into the slots 23 on both sides of the inner wall of the collection box 22 to install the filter screen frame 24 inside the collection box 22. Then, slip the collar 21 onto the surface of the support column 4 from top to bottom, so that the inner side of the arc-shaped plate 26 at the bottom of the collection box 22 fits against the outer surface of the support column 4. Subsequently, rotate the screw 27 to control the movement of the screw 27 on one side of the bottom of the collection box 22, driving the clamping plate 28 to slide towards the clamping plate 28 on the bottom of the collection box 22, and clamping the side of the clamping plate 28 away from the screw 27 against the outer surface of the support column 4 to fix the collection box 22 on the outer side of the top of the support column 4. Then, connect the coolant receiving pipe to one end of the drain pipe at the bottom of the collection box 22. Subsequently, slip the impeller 6 onto the outer side of the top of the support column 4 to fix the position of the impeller 6. Control the operation of the drive motor at one end of the machine body 1 through the control box on one side of the machine body 1 to drive the lead screw to rotate, so that the sliding seat 3 moves on the outer surface of the machine body 1 to adjust the relative position between the impeller 6 and the processing head 5. At the same time, operate the processing head 5 so that the processing head 5 controls the rotation and angle adjustment of the milling cutter through the robotic arm and the drive device inside the machine body 1 to mill the surface of the impeller 6. During the machining process, the coolant is input into the conveying pipe through the pump inside the machine body 1, and is ejected from one end of the conveying pipe to cool the milling cutter and the surface of the impeller 6, and wash away the metal chips generated during the machining. The coolant and metal chips will enter the inside of the collection box 22, and the metal chips in the coolant are filtered through the filter screen on the surface of the filter screen frame 24, blocking the metal chips on the filter screen surface of the filter screen frame 24. The coolant will enter the inside of the collection box 22 and be discharged through the drain pipe at the bottom of the collection box 22 through the pipeline. After the machining is completed, remove the impeller 6, then rotate the screw 27 to control the clamping plate 28 to move away from the arc-shaped plate 26 to release the fixation of the collection box 22 on the outer surface of the support column 4, and then remove the collection box 22 from bottom to top, and pull out the inserts 25 on both sides of the filter screen frame 24 from the inside of the slots 23 to remove the filter screen frame 24 and clean the surface of the filter screen frame 24.

[0041] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may 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 through specific circumstances.

Claims

1. An integral radial diffuser with a screw base, characterized in that: It includes an impeller (6), which is composed of a front cover (61), a screw seat body (62), blades (63) and a rear cover (64). The screw seat body (62) is circumferentially distributed on the outer surface of the front cover (61), and the blades (63) are circumferentially distributed between the front cover (61) and the rear cover (64).

2. The radial diffuser according to claim 6, wherein: The number of the blades (63) is 19, and the throat diameter of the blades (63) is Φ15mm.

3. A radial diffuser according to claim 6, characterized in that: The wall thickness of the rear cover (64) is 6mm.

4. A processing device for an integral radial diffuser with a screw base, characterized in that: A radial diffuser according to any one of claims 1-3, comprising: A machine body (1), which is placed on the ground for bearing the whole processing equipment; A sliding seat (3), which slides on the surface of the machine body (1) for installing a support column (4). A driving motor and a lead screw for driving the sliding seat (3) to move are arranged on the outer surface of the machine body (1). The servo motor is operated to drive the lead screw to rotate to control the sliding seat (3) to move on the surface of the lead screw and the machine body (1). A collecting device (2) for collecting debris and coolant during the processing is arranged on the outer surface of the sliding seat (3); A processing head (5), which is installed on one side of the machine body (1) for processing the radial diffuser. The processing head (5) includes a base that can move on the surface of the machine body (1), an arm for controlling the rotation of a milling cutter and adjusting the angle of the milling cutter, and a milling cutter for milling the surface of the radial diffuser. A delivery pipe for delivering coolant is also arranged on the outer surface of the processing head (5).

5. The processing equipment for an integral radial diffuser with a screw base according to claim 4, characterized in that: The collecting device (2) includes: A collar (21), a collecting box (22) is fixedly connected to the outer surface of the collar (21). A drain pipe is arranged at the bottom end of the collecting box (22). The size and shape of the inner circle of the collar (21) are adapted to the size and shape of the outer surface of the support column (4). Slots (23) are formed on both sides of the inner wall of the collecting box (22); A filter screen frame (24), a filter screen is arranged on the surface of the filter screen frame (24). Plug blocks (25) are respectively and fixedly connected to both sides of the filter screen frame (24). The plug blocks (25) are adapted to the slots (23). The plug blocks (25) are inserted into the slots (23) for installing the filter screen frame (24).

6. A processing equipment for an integral radial diffuser with a screw seat according to claim 5, characterized in that: An arc-shaped plate (26), which is fixed to one side of the bottom end of the collecting box (22). A screw (27) is threadedly connected to the bottom end of the collecting box (22). One end of the screw (27) is rotatably connected to a clamping plate (28).

7. The processing equipment of an integral radial diffuser with a screw base according to claim 6, characterized in that: A plurality of rubber convex strips (29) are fixedly connected to one side of the clamping plate (28). The convex strips (29) are linearly distributed on one side of the clamping plate (28).

8. The processing equipment for an integral radial diffuser with a screw base according to claim 7, characterized in that: An operation block (210) is fixedly connected to the end of the screw (27) away from the clamping plate (28). Protrusions are arranged on both sides of the operation block (210).

9. The processing equipment for an integral radial diffuser with a screw base according to claim 8, characterized in that: Two convex blocks (211) are fixedly connected to the top end of the filter screen frame (24).

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