A silicon nitride ceramic impeller processing equipment

By using an electrically controlled universal head and a flexible clamping system, the problem of vibration of long grinding rods during the processing of silicon nitride ceramic impellers was solved, thus improving grinding stability and efficiency.

CN117798776BActive Publication Date: 2025-11-11HENGYANG KAIXIN SPECIAL MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202311870550.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2025-11-11
Estimated Expiration
2043-12-29

AI Technical Summary

Technical Problem

In the processing of silicon nitride ceramic impellers, long grinding rods are prone to vibration under the impact of high-speed water flow, which affects the grinding effect.

Method used

The grinding rod is connected to an electrically controlled universal head. The grinding rod is fixed by a combination of an elastic telescopic rod and a micro electrically controlled telescopic rod. The clamping force is adjusted in real time using a pressure sensor and elastic clips to reduce the vibration of the grinding rod.

Benefits of technology

It effectively reduces the vibration of the grinding rod deep within the impeller blades, improving the grinding effect and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of silicon nitride processing equipment, in particular to a silicon nitride ceramic impeller processing equipment. The application provides the silicon nitride ceramic impeller processing equipment which comprises an electric control universal machine head and a grinding rod. The electric control universal machine head is further connected with an elastic telescopic rod. When the grinding rod is extended downwards into the deep part of the blade of the impeller, the fixed block is blocked by the blade of the impeller to trigger the pressure sensor in the elastic telescopic rod, so that the micro electric control telescopic rod is started, the two elastic clamping pieces are clamped on the two sides of the mounting rod, the shaking phenomenon of the grinding rod connected with the mounting rod is effectively slowed down, and the longer the length of the grinding rod extended downwards, the stronger the clamping and anti-shaking effect of the elastic clamping piece on the mounting rod. The technical problem that the lower end of the grinding rod is prone to shaking during the grinding treatment of the blade of the impeller by using the grinding rod with a relatively long length is solved.
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Description

Technical Field

[0001] This invention relates to the field of silicon nitride processing equipment, and more particularly to a silicon nitride ceramic impeller processing equipment. Background Technology

[0002] In the processing of silicon nitride ceramic impellers, grinding rods are used to grind the impeller blades from the outer end to the inner end. As the grinding rod gets closer to the inner end of the impeller blade, it needs to extend deeper into the blade to ensure effective grinding even deep within the blade. Therefore, longer grinding rods are required for this grinding process. However, the longer the grinding rod, the more pronounced the vibration at its lower end becomes. This vibration is especially severe when high-speed water jets are applied between the impeller blade and the grinding rod, as the impact of the water flow further intensifies the vibration, ultimately affecting the grinding effect on the impeller blade. Summary of the Invention

[0003] In order to overcome the drawback that the lower end of the grinding rod is prone to vibration when grinding impeller blades using a long grinding rod, the present invention provides a silicon nitride ceramic impeller processing equipment.

[0004] The technical solution is as follows: A silicon nitride ceramic impeller processing equipment includes an electrically controlled universal head, a grinding rod, a fixed frame, a second connecting piece, a miniature electrically controlled telescopic rod, elastic clamps, and a fixing block; the rotating part of the electrically controlled universal head is fixedly connected to the grinding rod via a mounting rod; a fixed frame is fixedly connected to the left and right sides of the electrically controlled universal head; a telescopic frame is slidably connected to the lower end of the fixed frame; two elastic telescopic connecting pieces are fixedly connected to the fixed frame; a first connecting piece is connected to the elastic telescopic connecting piece; a second connecting piece is connected to each of the first connecting pieces; a fixing block is connected between two adjacent second connecting pieces; a miniature electrically controlled telescopic rod is connected to each of the four second connecting pieces; an elastic clamp is fixedly connected between the telescopic ends of two adjacent miniature electrically controlled telescopic rods; the mounting rod is located between the left and right elastic clamps; the middle part of the grinding rod is located between the two fixing blocks.

[0005] Preferably, the elastic telescopic connector uses an elastic telescopic rod with a built-in return spring, and the telescopic end of the elastic telescopic rod is fixed to the first connector.

[0006] Preferably, the elastic telescopic rod has a built-in pressure sensor.

[0007] Preferably, the first connecting member is an electric push rod, the telescopic end of the elastic telescopic rod is fixedly connected to the fixed end of the electric push rod, and the telescopic end of the electric push rod is fixedly connected to the second connecting member; the second connecting member is a slider, and the slider is slidably connected to the fixed block.

[0008] Preferably, the fixing block consists of an upper layer of iron material and a lower layer of rubber material.

[0009] Preferably, the lower side of the fixing block is provided as an inclined surface structure that slopes downward toward the grinding rod.

[0010] Preferably, the lower side of the fixed block has several spray nozzles; an infusion hose is fixedly connected between the fixed frame and the telescopic frame; the infusion hose is connected to the inside of the fixed block.

[0011] Preferably, the infusion tubing is equipped with a spray washing tank structure.

[0012] Preferably, the upper side of the elastic clip is provided with a splash guard structure.

[0013] Preferably, the elastic clip has a solid lubricant coating on the side facing the mounting rod.

[0014] The beneficial effects of this invention are as follows: This invention describes a silicon nitride ceramic impeller processing device. The rotating component of the electrically controlled universal head is connected to a grinding rod via a mounting rod. An elastic telescopic rod is also connected to the electrically controlled universal head. The elastic telescopic rod is connected to a fixing block via a first connector and a second connector. The second connector has elastic clamps via a miniature electrically controlled telescopic rod. The mounting rod is located between the two elastic clamps. When the grinding rod extends downwards into the depth of the impeller blades, the fixing block is blocked by the impeller blades, triggering a pressure sensor inside the elastic telescopic rod. This activates the miniature electrically controlled telescopic rod, allowing the two elastic clamps to clamp the two sides of the mounting rod, effectively reducing the vibration of the grinding rod connected to the mounting rod. The longer the grinding rod extends downwards, the stronger the anti-vibration effect of the elastic clamps on the mounting rod. This invention solves the technical problem of vibration at the lower end of the grinding rod when using a long grinding rod to grind impeller blades. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram illustrating the present invention according to an embodiment;

[0016] Figure 2 This is a schematic diagram illustrating the three-dimensional structure of the fixing frame according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram illustrating the three-dimensional structure of the fixing block according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram illustrating the three-dimensional structure of the elastic clip of the present invention according to an embodiment.

[0019] Explanation of reference numerals in the attached drawings: 1-Electrically controlled universal head, 21-Mounting rod, 22-Grinding rod, 31-Fixed frame, 32-Telescopic frame, 33-Elastic telescopic connector, 34-First connector, 4-Second connector, 41-Miniature electrically controlled telescopic rod, 5-Elastic clamp, 51-Solid lubricant coating, 52-Splash guard, 6-Fixed block, 60-Spray nozzle, 61-Infusion hose, 610-Spray tank. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] A silicon nitride ceramic impeller processing equipment, such as Figures 1-4 As shown, it includes an electrically controlled universal head 1, a grinding rod 22, a fixing frame 31, a second connecting piece 4, a miniature electrically controlled telescopic rod 41, an elastic clamp 5, and a fixing block 6. The rotating part of the electrically controlled universal head 1 is fixedly connected to the grinding rod 22 via a mounting rod 21. A fixing frame 31 is bolted to the left and right sides of the electrically controlled universal head 1. A telescopic frame 32 is slidably connected to the lower end of each of the two fixing frames 31. Two elastic telescopic connecting pieces 33 are fixedly connected to each of the two fixing frames 31. A first connecting piece 34 is connected to each of the four elastic telescopic connecting pieces 33. A second connecting piece 4 is connected to each of the four first connecting pieces 34. A fixing block 6 is connected between every two adjacent second connecting pieces 4. A miniature electrically controlled telescopic rod 41 is connected to each of the four second connecting pieces 4. An elastic clamp 5 is fixedly connected between the telescopic ends of every two adjacent miniature electrically controlled telescopic rods 41. The mounting rod 21 is located between the two elastic clamps 5. The middle part of the grinding rod 22 is located between the two fixing blocks 6.

[0023] like Figure 3 As shown, the elastic telescopic connector 33 uses an elastic telescopic rod with a built-in return spring, and the telescopic end of the elastic telescopic rod is fixed to the first connector 34; the elastic telescopic rod has a built-in pressure sensor, which monitors the elastic force of the return spring in real time.

[0024] like Figure 3 and Figure 4 As shown, the lower side of the fixing block 6 is designed as an inclined surface structure that slopes downward toward the grinding rod 22; several spray nozzles 60 are provided on the lower side of the fixing block 6; an infusion hose 61 is fixedly connected between the fixing frame 31 and the telescopic frame 32; the infusion hose 61 is connected to the interior of the fixing block 6; a spray washing groove 610 structure is provided on the side of the infusion hose 61 facing the elastic clip 5; a splash guard 52 structure is provided on the upper side of the elastic clip 5.

[0025] The electrically controlled universal head 1 is installed on an external grinding machine. The grinding rod 22 is installed on the rotating part of the electrically controlled universal head 1 via the mounting rod 21. Two elastic clamping plates 5 are located on the left and right sides of the mounting rod 21, respectively. After the operator installs the impeller to be ground onto the clamping part of the external grinding machine, the electrically controlled universal head 1 is controlled by the external grinding machine to drive the grinding rod 22 to grind each blade of the impeller in sequence. The external spray liquid delivery device is connected through the infusion hose 61. The external spray liquid delivery device continuously delivers spray liquid to the fixed block 6 through the infusion hose 61. The spray liquid is sprayed downward through the spray nozzle 60 of the fixed block 6 onto the contact area between the grinding rod 22 and the blade of the impeller, so as to cool down the grinding rod 22 in time and wash away the debris generated during the grinding process.

[0026] As the electrically controlled universal head 1 drives the grinding rod 22 from the outer end of the impeller blades to the inner end of the impeller blades, the electrically controlled universal head 1 also needs to drive the grinding rod 22 downwards into the space between the impeller blades, allowing the grinding rod 22 to perform grinding processing deep within the impeller blades. During this process, the fixed block 6 will be blocked by the impeller blades and will not be able to move downwards with the grinding rod 22. Therefore, the downward-moving elastic telescopic connector 33, i.e., the elastic telescopic rod, will be blocked by the fixed block 6, causing the elastic telescopic rod to be compressed and triggering its built-in pressure sensor. The triggered pressure sensor sends a working command to the miniature electrically controlled telescopic rod 41 through the circuit system, causing the four miniature electrically controlled telescopic rods 41 to synchronously push the left and right sides of the impeller blades. The elastic clips 5 on both sides move closer to the mounting rod 21, so that the elastic clips 5 apply a clamping force to the mounting rod 21 through the solid lubricant coating 51. As the grinding rod 22 extends downward from between the two fixed blocks 6 into the depth of the impeller blade, the two elastic clips 5 together provide anti-vibration clamping force to the grinding rod 22 on the mounting rod 21, effectively reducing the vibration phenomenon that occurs at the lower end of the grinding rod 22 due to its long extension length. As the grinding rod 22 extends deeper into the depth of the impeller blade, the pressure sensor detects that the elastic telescopic rod is compressed to a greater degree, and the pressure sensor pushes the elastic clips 5 a farther distance, so that the elastic clips 5 provide a stronger anti-vibration clamping effect on the grinding rod 22 on the mounting rod 21.

[0027] During the process of the spray liquid flowing from the infusion hose 61 to the fixing block 6, part of the spray liquid in the infusion hose 61 will be directly rinsed onto the outer surface of the elastic clamp 5 through the spray washing tank 610. During the process of the elastic clamp 5 clamping the mounting rod 21, the spray liquid rinsing onto the outer surface of the elastic clamp 5 will cool the elastic clamp 5. In addition, the splash guard 52 effectively prevents a large amount of spray liquid from being rinsed onto the solid lubricant coating 51 of the elastic clamp 5.

[0028] Example 2

[0029] like Figures 1-4As shown, based on Embodiment 1, the first connecting member 34 in this embodiment uses an electric push rod. The telescopic end of the elastic telescopic rod is fixed to the fixed end of the electric push rod, and the telescopic end of the electric push rod is fixed to the second connecting member 4. The second connecting member 4 uses a slider, which is slidably connected to the fixed block 6. The electric push rod pushes the slider to move along the fixed block 6 to adjust the distance between the two elastic clamping pieces 5. When a larger grinding rod 22 and a corresponding mounting rod 21 are needed, the electric push rod pulls the second connecting member 4 to move along the fixed block 6 away from the mounting rod 21, so that the four second connecting members 4 synchronously drive the two elastic clamping pieces 5 away from each other, increasing the distance between the two elastic clamping pieces 5, and ensuring that the elastic clamping pieces 5 will not contact the larger mounting rod 21 in the initial state.

[0030] Example 3

[0031] like Figures 1-4 As shown, based on embodiment 2, the fixing block 6 is composed of an upper iron block material and a lower rubber material. The fixing block 6 is slidably connected to the second connecting member 4 through the upper iron block material, and the fixing block 6 contacts the blades of the impeller through the lower rubber material, so as to avoid the fixing block 6 scratching the blades of the impeller during the movement of the fixing block 6 along the blades of the impeller.

[0032] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A silicon nitride ceramic impeller processing equipment, comprising: an electrically controlled universal head (1) The rotating part of the electrically controlled universal head (1) is fixed with a grinding rod (22) via a mounting rod (21); Its features are, It also includes a fixing frame (31); A fixed frame (31) is fixedly connected to the left and right sides of the electric universal head (1); a telescopic frame (32) is slidably connected to the lower end of the fixed frame (31); two elastic telescopic connectors (33) are fixedly connected to the fixed frame (31); a first connector (34) is connected to the elastic telescopic connector (33); a second connector (4) is connected to each of the first connectors (34); a fixed block (6) is connected between two adjacent second connectors (4); a miniature electric telescopic rod (41) is connected to each of the four second connectors (4); an elastic clip (5) is fixedly connected between the telescopic ends of two adjacent miniature electric telescopic rods (41); the mounting rod (21) is located between the two elastic clips (5) on the left and right; the middle part of the grinding rod (22) is located between the two fixed blocks (6).

2. The silicon nitride ceramic impeller processing equipment according to claim 1, characterized in that, The elastic telescopic connector (33) uses an elastic telescopic rod with a built-in reset spring, and the telescopic end of the elastic telescopic rod is fixed to the first connector (34).

3. The silicon nitride ceramic impeller processing equipment according to claim 2, characterized in that, The elastic telescopic rod has a built-in pressure sensor.

4. The silicon nitride ceramic impeller processing equipment according to claim 1, characterized in that, The first connector (34) uses an electric push rod, and the telescopic end of the elastic telescopic rod is fixed to the fixed end of the electric push rod. The telescopic end of the electric push rod is fixed to the second connector (4); the second connector (4) is a slider, which is slidably connected to the fixing block (6).

5. The silicon nitride ceramic impeller processing equipment according to claim 4, characterized in that, The fixing block (6) is composed of an upper layer of iron block material and a lower layer of rubber material.

6. The silicon nitride ceramic impeller processing equipment according to claim 1, characterized in that, The lower side of the fixing block (6) is designed as a slope structure that is inclined downward toward the grinding rod (22).

7. The silicon nitride ceramic impeller processing equipment according to claim 6, characterized in that, Several spray nozzles (60) are provided on the lower side of the fixed block (6); an infusion hose (61) is fixedly connected between the fixed frame (31) and the telescopic frame (32); the infusion hose (61) is connected to the inside of the fixed block (6).

8. The silicon nitride ceramic impeller processing equipment according to claim 7, characterized in that, The infusion tubing (61) has a spray washing tank (610) structure.

9. The silicon nitride ceramic impeller processing equipment according to claim 8, characterized in that, The upper side of the elastic clip (5) is provided with a splash guard (52) structure.

10. A silicon nitride ceramic impeller processing equipment according to any one of claims 1-9, characterized in that, The elastic clip (5) has a solid lubricant coating (51) on the side facing the mounting rod (21).

Citation Information

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