A grinding device for impeller blanks to prevent over-grinding

Abstract

This invention relates to the field of grinding technology, specifically to an impeller blank grinding device to prevent over-grinding. The impeller blank grinding device includes a base and a machine body. A fixing clamp is provided at the middle position of the base to fix the impeller. A cooling device is provided at the side end of the fixing clamp. Compared with current impeller blank grinding devices, this invention features two sets of second grinding wheels. A first cylinder and a second cylinder drive the two sets of second grinding wheels to clamp the impeller blades. A second grinding motor drives the two sets of second grinding wheels to rotate, and the two sets of second grinding wheels grind the impeller blades. During impeller blade grinding, this invention uses the first cylinder and the second cylinder to adjust the distance between the two sets of second grinding wheels in real time, thereby adjusting the grinding feed rate. This improves the practicality of the invention and enhances the grinding accuracy, avoiding over-grinding.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, specifically to a grinding device for impeller blanks that prevents over-grinding. Background Technology

[0002] The impeller is one of the most critical components in a car. Its function is to compress air and deliver the compressed air to the corresponding parts of the car. The quality of the impeller is related to factors such as machining geometry, surface roughness, and installation clearance. Currently, impellers usually need to be polished during production to ensure reliable operation.

[0003] However, due to the unique shape of the impeller, current impeller grinding equipment often requires complex calibration operations during use, resulting in low practicality. For example, patent "CN116833850B A Water Pump Impeller Grinding Device" discloses a blade grinding device, but the operation of the device is cumbersome, it cannot grind impellers of different sizes, and there are no preventive measures when over-grinding occurs. In addition, current impeller grinding equipment usually has a filtration mechanism, but the current filtration mechanism basically uses a filter screen to filter the used coolant directly. After each use, the filtration mechanism often needs to be cleaned manually, resulting in low work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding device for impeller blanks that prevents over-grinding, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an impeller blank grinding device to prevent over-grinding, the impeller blank grinding device including a base and a machine body, a fixing clamp is provided at the middle position of the base, the impeller is fixed by the fixing clamp, a cooling device is provided at the side end of the fixing clamp to prevent the impeller from burning (the functions achieved by the fixing clamp and the cooling device are conventional technical means in the art, and the specific structure is not described), a driving device is provided on the machine body, a fixed seat is provided on the driving device, the fixed seat is driven to move left and right and up and down by the driving device (the functions achieved by the driving device are conventional technical means in the art, and the specific structure is not described), a first grinding motor is provided inside the fixed seat, and the lower end of the fixed seat... The device is equipped with a deflection shaft, and a grinding mechanism is located on the outer side of the lower end of the deflection shaft. A movable seat is located on the upper inside of the deflection shaft. The main shaft of the first grinding motor is connected to the movable seat. The movable seat and the deflection shaft are connected by a linkage assembly. When the invention is working, the grinding mechanism is driven to contact the impeller blades through the drive device and the fixed seat. The grinding mechanism is driven to rotate by the first grinding motor. When the grinding mechanism rotates, it grinds the impeller blades. A rotary motor (not shown in the figure) is located inside the base. The rotary motor is connected to the fixed clamp through a gear assembly. The position of the fixed clamp and the impeller is adjusted by the rotary motor and the gear assembly, so as to facilitate the first grinding motor to grind different blades. Compared with the current impeller blank grinding equipment, the present invention is superior.

[0006] Furthermore, a first hydraulic cylinder is installed inside the movable seat, and a telescopic shaft is installed at the lower end of the deflection shaft. A first grinding wheel is installed at the lower end of the telescopic shaft. The first hydraulic cylinder is connected to the telescopic shaft. When grinding the blades of the impeller, the movable seat is fixedly connected to the deflection shaft through the linkage component. After grinding the blades of the impeller, the fixed seat is driven to rise by the drive device until the grinding mechanism is separated from the impeller. Then, the telescopic shaft and the first grinding wheel are extended out of the deflection shaft by the first hydraulic cylinder until the first grinding wheel contacts the impeller chassis. The movable seat is slidably connected to the deflection shaft by the linkage component. Then, the movable seat, the telescopic shaft and the first grinding wheel are driven to rotate by the first grinding motor, and the impeller chassis is ground by the first grinding wheel.

[0007] Furthermore, the grinding mechanism includes a fixed frame, a second grinding motor, a first transmission wheel, a second transmission wheel, a first slide block, and a second slide block. The first and second transmission wheels have axial movement capabilities. A first driven wheel is located at the upper end of the first slide block, and a second driven wheel is located at the upper end of the second slide block. Second grinding wheels are located at the lower ends of both the first and second slide blocks. The first slide block is connected to the fixed frame via a first cylinder, and the second slide block is connected to the fixed frame via a second cylinder. When the first grinding motor drives the grinding mechanism to rotate, it facilitates movement via the first and second cylinders. Two sets of second grinding wheels move close to the impeller blades. The drive shaft of the second grinding motor passes through the first and second transmission wheels. The first transmission wheel is connected to the first driven wheel via a first transmission belt, and the second transmission wheel is connected to the second driven wheel via a second transmission belt. When grinding the impeller blades, the distance between the two sets of second grinding wheels can be adjusted in real time by the first and second cylinders to adjust the grinding feed. This improves the practicality and grinding accuracy of the invention, while avoiding excessive grinding feed at one time and enabling multiple micro-grinding operations.

[0008] Furthermore, a liquid storage tank and a second hydraulic cylinder are provided inside the side end of the fixing frame. The liquid storage tank contains transmission fluid, and a pressure plate is provided inside the liquid storage tank. The second hydraulic cylinder is connected to the pressure plate. Movable grooves are provided on the upper and lower sides of the first and second transmission wheels. The movable grooves are connected to the liquid storage tank through a diversion channel. A slider is provided inside each set of movable grooves. The slider is connected to the movable groove through a compression spring. A sliding groove is provided at the end of the first and second transmission wheels near the movable groove. The sliding groove cooperates with the slider. When the distance between the two sets of second grinding wheels is adjusted in real time by the first and second cylinders, the pressure plate is driven to move by the second hydraulic cylinder. The pressure plate squeezes the transmission fluid in the liquid storage tank into the movable groove. Under the action of hydraulic pressure, the slider will extend out of the movable groove, thereby causing the first and second transmission wheels to move axially. This controls the tension of the first and second transmission belts, ensuring the normal movement of the first and second driven wheels.

[0009] Furthermore, the fixed frame is also provided with a sensing groove inside, and a conductive block is provided inside the sensing groove. There are two sets of conductive blocks. One set of conductive blocks is fixed to the outside of the second slide, and the other set of conductive blocks is fixed to the outside of the first slide. The two sets of conductive blocks are connected by a conductive rod. In operation, the two sets of conductive blocks can be connected to an external current detection device and an external power supply. When the first cylinder and the second cylinder drive the first slide and the second slide to move, the distance between the two sets of conductive blocks will change accordingly. The operator can determine the distance between the two sets of second grinding wheels by monitoring the current change of the external current detection device, so as to avoid the impeller grinding too much or too little, thereby ensuring the grinding accuracy.

[0010] Furthermore, a third electromagnet is installed inside the pressure plate, and a linkage block is installed at the end of the pressure plate away from the second hydraulic cylinder. The linkage block is connected to the second hydraulic cylinder, and the end of the linkage block near the third electromagnet is magnetic. The third electromagnet is connected to an external power source through two sets of conductive blocks. Under normal conditions (when the impeller grinding feed meets the grinding standard), the third electromagnet will always generate a magnetic field that attracts the linkage block. At this time, the second hydraulic cylinder will drive the pressure plate to move in the liquid storage tank, so that the first slide and the second slide can move normally. When grinding encounters an abnormality (when the impeller grinding feed is not...), the third electromagnet will not be activated. (Meets grinding standards) The third electromagnet will automatically shut off. At this time, the second hydraulic cylinder will not be able to drive the pressure plate to move in the liquid storage tank. Even if the first and second cylinders drive the first and second slides to move due to accuracy or malfunction, the two sets of second grinding wheels will not grind the impeller (after the third electromagnet shuts off, the first and second transmission wheels will not be able to continue to move axially. Even if the first and second slides move, the power of the second grinding motor will not be transmitted to the two sets of second grinding wheels due to the looseness of the first and second transmission belts). This avoids excessive grinding of the blades and affects the accuracy of the impeller.

[0011] Furthermore, the linkage component includes a second electromagnet, a first magnetic block, and a second magnetic block. Several groups of second electromagnets are evenly arranged on the deflection shaft. The first magnetic block is located at the end of the movable seat near the second electromagnet, and the second magnetic block is located at the end of the fixed seat near the second electromagnet. By changing the direction of the magnetic poles of the second electromagnet, the connection between the movable seat and the deflection shaft is controlled. When grinding the impeller blades, the second electromagnet generates a magnetic field that attracts the first magnetic block and repels the second magnetic block. At this time, the movable seat is fixed to the deflection shaft, allowing the power of the first grinding motor to be smoothly transmitted to the deflection shaft. When grinding the impeller chassis, the second electromagnet generates a magnetic field that attracts the second magnetic block and repels the first magnetic block. At this time, the movable seat is slidably connected to the deflection shaft, preventing the power of the first grinding motor from being transmitted to the deflection shaft, thus facilitating the grinding of the impeller chassis by the first grinding wheel.

[0012] Furthermore, the side end of the fixing clamp is provided with a drainage channel, and the interior of the base is provided with a filter tank and a storage chamber. The filter tank and the storage chamber are connected by an inclined groove. A filter plate is provided at the lower end of the filter tank. During operation, the cooling device sprays coolant onto the impeller. After use, the coolant enters the filter tank along the drainage channel and is filtered by the filter plate to remove debris, facilitating coolant recovery. A first electromagnet is provided in the middle of the filter plate, and a lifting sleeve is provided at the upper end of the filter tank. The end of the lifting sleeve near the first electromagnet... The device is magnetic, and a return spring rod is installed inside the lifting sleeve. One end of the return spring rod extending out of the lifting sleeve is connected to a first electromagnet. After working for a period of time, the filtered debris will accumulate on the filter plate. At this time, the operator can turn on the first electromagnet. Under the action of the magnetic field, the first electromagnet will rise until the filter plate is aligned with the inclined groove. At this time, the operator will input cleaning fluid into the drainage channel. Under the flushing of the cleaning fluid, the filtered debris will enter the storage chamber along the inclined groove. Through the above technical solution, the coolant and debris can be automatically separated for subsequent recycling.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: Compared with the current impeller blank grinding equipment, the present invention is equipped with two sets of second grinding wheels. The first and second cylinders drive the two sets of second grinding wheels to clamp the impeller blades, and the second grinding motor drives the two sets of second grinding wheels to rotate. The impeller blades are ground by the two sets of second grinding wheels. When grinding the impeller blades, the present invention adjusts the distance between the two sets of second grinding wheels in real time by the first and second cylinders to adjust the grinding feed in real time. On the one hand, it improves the practicality of the present invention, and on the other hand, it improves the grinding accuracy of the present invention. At the same time, it avoids excessive grinding feed at one time and realizes multiple micro-grinding. When the impeller is over-grinded, the third electromagnet automatically closes. At this time, the second hydraulic cylinder will not be able to drive the pressure plate to move in the liquid storage tank. Even if the first and second cylinders drive the first and second slides to move due to accuracy or malfunction, the two sets of second grinding wheels will not grind the impeller (after the third electromagnet closes, the first transmission wheel and The second drive wheel will be unable to continue axial movement. Even if the first and second slides move, the power of the second grinding motor will not be transmitted to the two sets of second grinding wheels due to the loosening of the first and second drive belts. This avoids over-grinding of the blades and affecting the impeller's accuracy. The invention also includes a lifting sleeve and a filter plate. When too much debris accumulates on the filter plate, the first electromagnet can align the filter plate with the inclined groove. At this time, the operator inputs cleaning fluid into the drainage channel. Under the flushing of the cleaning fluid, the filtered debris will enter the storage chamber along the inclined groove. Through the above technical solution, the coolant and debris can be automatically separated for subsequent recycling. Finally, the invention also includes a linkage component. The linkage component controls the connection between the movable seat and the deflection shaft, so that the first grinding motor can transmit power to the deflection shaft or the movable seat as needed, thereby reducing the use of drive equipment. At the same time, the invention can grind different areas of the impeller in the same process. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the grinding mechanism structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the fixing frame of the present invention; Figure 4 This is a schematic diagram of the AA part structure of the present invention; Figure 5 This is a schematic diagram of the slider structure of the present invention; Figure 6This is a schematic diagram of the BB section structure of the present invention; Figure 7 This is a schematic diagram showing the connection between the first transmission wheel, the second transmission wheel, the first driven wheel, and the second driven wheel of the present invention; Figure 8 This is a schematic diagram of the internal structure of the pressure plate of the present invention; Figure 9 This is a schematic diagram of the internal structure of the fixing base of the present invention; Figure 10 This is a schematic diagram of the CC section structure of the present invention; Figure 11 This is a schematic diagram of the internal structure of the base of the present invention.

[0016] In the diagram: 1. Base; 11. Fixing clamp; 12. Drainage channel; 13. Filter tank; 14. First electromagnet; 15. Lifting sleeve; 16. Filter plate; 17. Storage chamber; 2. Machine body; 3. Fixed seat; 31. First grinding motor; 32. Movable seat; 33. Second electromagnet; 34. Deflection shaft; 35. Telescopic shaft; 36. First hydraulic cylinder; 4. Drive device; 5. Cooling device; 6. Grinding mechanism; 61. Fixing frame ; 611, Liquid storage tank; 612, Pressure plate; 6121, Third electromagnet; 613, Second hydraulic cylinder; 614, Diverting channel; 615, Movable groove; 616, Slider; 62, Second grinding motor; 63, First transmission wheel; 64, Second transmission wheel; 65, First cylinder; 66, First slide block; 661, First driven wheel; 67, Second slide block; 671, Second driven wheel; 68, Second cylinder; 69, Conductive block. Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0018] like Figures 1-11As shown, the present invention provides a technical solution: a grinding device for impeller blanks to prevent over-grinding. The grinding device includes a base 1 and a body 2. A fixing clamp 11 is provided at the middle position of the base 1 to fix the impeller. A cooling device 5 is provided at the side end of the fixing clamp 11 to prevent the impeller from being burned (the functions of the fixing clamp 11 and the cooling device 5 are conventional technical means in the art, and the specific structure is not described). A driving device 4 is provided on the body 2, and a fixed seat 3 is provided on the driving device 4. The driving device 4 drives the fixed seat 3 to move left and right and up and down (the functions of the driving device 4 are conventional technical means in the art, and the specific structure is not described). A first grinding motor 31 is provided inside the fixed seat 3, and a deflection shaft 34 is provided at the lower end of the fixed seat 3. A grinding mechanism 6 is provided on the outer side of the lower end of the deflection shaft 34. A movable seat 32 is provided on the upper inside of the deflection shaft 34. The main shaft of the first grinding motor 31 is connected to the movable seat 32. The movable seat 32 and the deflection shaft 34 are connected by a linkage component. When the invention is working, the grinding mechanism 6 is driven to contact the impeller blades by the drive device 4 and the fixed seat 3. The grinding mechanism 6 is driven to rotate by the first grinding motor 31. When the grinding mechanism 6 rotates, it grinds the impeller blades. A rotary motor (not shown in the figure) is provided inside the base 1. The rotary motor is connected to the fixed clamp 11 through a gear assembly. The position of the fixed clamp 11 and the impeller is adjusted by the rotary motor and the gear assembly, so as to facilitate the first grinding motor 31 to grind different blades. Compared with the current impeller blank grinding equipment, the invention is superior.

[0019] like Figure 1 , Figures 9-10 As shown, the movable seat 32 is equipped with a first hydraulic cylinder 36, and the lower end of the deflection shaft 34 is equipped with a telescopic shaft 35. The lower end of the telescopic shaft 35 is equipped with a first grinding wheel. The first hydraulic cylinder 36 is connected to the telescopic shaft 35. When grinding the blades of the impeller, the movable seat 32 and the deflection shaft 34 are fixedly connected by a linkage component. After the blades of the impeller are ground, the fixed seat 3 is driven to rise by the drive device 4 until the grinding mechanism 6 is separated from the impeller. Then, the telescopic shaft 35 and the first grinding wheel are extended out of the deflection shaft 34 by the first hydraulic cylinder 36 until the first grinding wheel contacts the chassis of the impeller. The movable seat 32 and the deflection shaft 34 are slidably connected by the linkage component. Then, the movable seat 32, the telescopic shaft 35 and the first grinding wheel are driven to rotate by the first grinding motor 31, and the impeller chassis is ground by the first grinding wheel.

[0020] like Figures 1-7As shown, the grinding mechanism 6 includes a fixed frame 61, a second grinding motor 62, a first transmission wheel 63, a second transmission wheel 64, a first slide 66, and a second slide 67. The first transmission wheel 63 and the second transmission wheel 64 have axial movement function. A first driven wheel 661 is provided at the upper end of the first slide 66, and a second driven wheel 671 is provided at the upper end of the second slide 67. A second grinding wheel is provided at the lower end of both the first slide 66 and the second slide 67. The first slide 66 is connected to the fixed frame 61 through a first cylinder 65, and the second slide 67 is connected to the fixed frame 61 through a second cylinder 68. When the first grinding motor 31 drives the grinding mechanism 6 to rotate, it moves through the first cylinder 661... The first cylinder 65 and the second cylinder 68 facilitate the movement of the two sets of second grinding wheels close to the impeller blades. The drive shaft of the second grinding motor 62 passes through the first transmission wheel 63 and the second transmission wheel 64. The first transmission wheel 63 is connected to the first driven wheel 661 through the first transmission belt, and the second transmission wheel 64 is connected to the second driven wheel 671 through the second transmission belt. When grinding the impeller blades, the distance between the two sets of second grinding wheels can be adjusted in real time by the first cylinder 65 and the second cylinder 68 to adjust the grinding feed. This improves the practicality of the invention and the grinding accuracy, while avoiding excessive grinding feed at one time and enabling multiple micro-grinding operations.

[0021] like Figures 3-8 As shown, a liquid storage tank 611 and a second hydraulic cylinder 613 are provided inside the side end of the fixed frame 61. The liquid storage tank 611 contains transmission fluid and a pressure plate 612 is installed inside it. The second hydraulic cylinder 613 is connected to the pressure plate 612. Movable grooves 615 are provided on both the upper and lower sides of the first transmission wheel 63 and the second transmission wheel 64. The movable grooves 615 are connected to the liquid storage tank 611 through a diversion channel 614. A slider 616 is installed inside each set of movable grooves 615. The slider 616 is connected to the movable groove 615 through a compression spring. The first transmission wheel 63 and the second transmission wheel 64 are close to the movable grooves 61. Each of the 5 has a sliding groove at one end, which cooperates with the slider 616. When the distance between the two sets of second grinding wheels is adjusted in real time by the first cylinder 65 and the second cylinder 68, the pressure plate 612 is driven to move by the second hydraulic cylinder 613. The pressure plate 612 squeezes the transmission fluid in the storage tank 611 into the movable groove 615. Under the action of hydraulic pressure, the slider 616 will extend out of the movable groove 615, thereby causing the first transmission wheel 63 and the second transmission wheel 64 to move axially, thereby controlling the tension of the first transmission belt and the second transmission belt, and ensuring that the first driven wheel 661 and the second driven wheel 671 move normally.

[0022] like Figures 3-7As shown, the fixed frame 61 is also provided with a sensing groove inside, and a conductive block 69 is provided inside the sensing groove. There are two sets of conductive blocks 69. One set of conductive blocks 69 is fixed to the outside of the second slide 67, and the other set of conductive blocks 69 is fixed to the outside of the first slide 66. The two sets of conductive blocks 69 are connected by a conductive rod. In the present invention, during operation, the two sets of conductive blocks 69 can be connected to an external current detection device and an external power supply. When the first cylinder 65 and the second cylinder 68 drive the first slide 66 and the second slide 67 to move, the distance between the two sets of conductive blocks 69 will change accordingly. The operator can determine the distance between the two sets of second grinding wheels by monitoring the current change of the external current detection device, so as to avoid the impeller grinding too much or too little, thereby ensuring the grinding accuracy.

[0023] like Figure 3 , Figure 8 As shown, a third electromagnet 6121 is installed inside the pressure plate 612. A linkage block is installed at the end of the pressure plate 612 away from the second hydraulic cylinder 613. The linkage block is connected to the second hydraulic cylinder 613. The end of the linkage block near the third electromagnet 6121 is magnetic. The third electromagnet 6121 is connected to an external power source through two sets of conductive blocks 69. Under normal conditions (when the impeller grinding feed meets the grinding standard), the third electromagnet 6121 will always generate a magnetic field that attracts the linkage block. At this time, the second hydraulic cylinder 613 will drive the pressure plate 612 to move in the liquid storage tank 611, so that the first slide 66 and the second slide 67 can move normally. When grinding encounters an abnormality (when the impeller grinding feed does not meet the standard), the third electromagnet 6121 will generate a magnetic field that attracts the linkage block. At this time, the second hydraulic cylinder 613 will drive the pressure plate 612 to move in the liquid storage tank 611, so that the first slide 66 and the second slide 67 can move normally. (Grinding standard), the third electromagnet 6121 will automatically shut off. At this time, the second hydraulic cylinder 613 will not be able to drive the pressure plate 612 to move in the liquid storage tank 611. Even if the first cylinder 65 and the second cylinder 68 drive the first slide 66 and the second slide 67 to move due to accuracy or malfunction, the two sets of second grinding wheels will not grind the impeller (after the third electromagnet 6121 is shut off, the first transmission wheel 63 and the second transmission wheel 64 will not be able to continue to move axially. Even if the first slide 66 and the second slide 67 move, the power of the second grinding motor 62 will not be transmitted to the two sets of second grinding wheels due to the looseness of the first and second transmission belts). This is to avoid excessive grinding of the blades and affect the accuracy of the impeller.

[0024] like Figures 9-10As shown, the linkage assembly includes a second electromagnet 33, a first magnetic block, and a second magnetic block. Several groups of second electromagnets 33 are evenly distributed on the deflection shaft 34. The first magnetic block is located at one end of the movable seat 32 near the second electromagnet 33, and the second magnetic block is located at one end of the fixed seat 3 near the second electromagnet 33. By changing the direction of the magnetic poles of the second electromagnet 33, the connection between the movable seat 32 and the deflection shaft 34 is controlled. In this invention, when grinding the impeller blades, the second electromagnet 33... A magnetic field is generated that attracts the first magnetic block and repels the second magnetic block. At this time, the movable seat 32 is fixed together with the deflection shaft 34, so that the power of the first grinding motor 31 can be smoothly transmitted to the deflection shaft 34. When grinding the impeller chassis, the second electromagnet 33 will generate a magnetic field that attracts the second magnetic block and repels the first magnetic block. At this time, the movable seat 32 is slidably connected to the deflection shaft 34, so that the power of the first grinding motor 31 cannot be transmitted to the deflection shaft 34, so that the first grinding wheel can grind the impeller chassis.

[0025] like Figure 1 , Figure 11 As shown, the side end of the fixing clamp 11 is provided with a drain channel 12, and the base 1 is provided with a filter tank 13 and a storage chamber 17. The filter tank 13 and the storage chamber 17 are connected by an inclined groove. The lower end of the filter tank 13 is provided with a filter plate 16. When the present invention is working, the cooling device 5 sprays coolant onto the impeller. After use, the coolant enters the filter tank 13 along the drain channel 12 and is filtered by the filter plate 16 to remove debris from the coolant, so as to facilitate coolant recovery. A first electromagnet 14 is provided in the middle of the filter plate 16. A lifting sleeve 15 is provided at the upper end of the filter tank 13. The lifting sleeve 15 is close to the first electromagnet 14. One end of the 4 is magnetic. A return spring rod is installed inside the lifting sleeve 15. One end of the return spring rod extending out of the lifting sleeve 15 is connected to the first electromagnet 14. After working for a period of time, the filtered debris will accumulate on the filter plate 16. At this time, the operator can turn on the first electromagnet 14. Under the action of the magnetic field, the first electromagnet 14 will rise until the filter plate 16 is aligned with the inclined groove. At this time, the operator inputs cleaning fluid into the drain channel 12. Under the flushing of the cleaning fluid, the filtered debris will enter the storage chamber 17 along the inclined groove. Through the above technical solution, the coolant and debris can be automatically separated for subsequent recycling.

[0026] The working principle of this invention is as follows: Before operation, the impeller is fixed by the fixing clamp 11, and the fixed base 3 is moved by the driving device 4. The first cylinder 65 and the second cylinder 68 drive two sets of second grinding wheels to clamp the impeller blades. The second grinding motor 62 drives the two sets of second grinding wheels to rotate, and the two sets of second grinding wheels grind the impeller blades. Cooling device 5 sprays coolant onto the impeller to prevent it from burning. When the first grinding motor 31 drives the grinding mechanism 6 to rotate, this facilitates the movement of the two sets of second grinding wheels close to the impeller blades. During the grinding of the impeller blades, the distance between the two sets of second grinding wheels is adjusted in real time by the first cylinder 65 and the second cylinder 68 to avoid excessive grinding feed at one time. When the impeller is over-grinded, the third electromagnet 6121 automatically shuts off. At this time, the second hydraulic cylinder 613 will be unable to drive the pressure plate 6. 12 moves in the liquid storage tank 611. Even if the first cylinder 65 and the second cylinder 68 drive the first slide 66 and the second slide 67 to move due to accuracy or malfunction, the two sets of second grinding wheels will not grind the impeller (after the third electromagnet 6121 is closed, the first transmission wheel 63 and the second transmission wheel 64 will not be able to continue to move axially. Even if the first slide 66 and the second slide 67 move, the power of the second grinding motor 62 will not be transmitted to the two sets of second grinding wheels due to the loosening of the first transmission belt and the second transmission belt). This avoids excessive grinding of the blades and affects the accuracy of the impeller. The base 1 is equipped with a rotary motor. The rotary motor is connected to the fixed clamp 11 through a gear assembly. The position of the fixed clamp 11 and the impeller is adjusted by the rotary motor and the gear assembly, so as to facilitate the first grinding motor 31 to grind different blades.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A grinding device for impeller blanks to prevent over-grinding, characterized in that: The impeller blank grinding equipment includes a base (1) and a machine body (2). A fixing clamp (11) is provided at the middle position of the base (1) to fix the impeller. A cooling device (5) is provided on the side end of the fixing clamp (11). A rotary motor is provided inside the base (1). The rotary motor is connected to the fixing clamp (11) through a gear assembly. A drive device (4) is provided on the machine body (2). A fixed seat (3) is provided on the drive device (4). The fixed base (3) is equipped with a first grinding motor (31) inside. The lower end of the fixed base (3) is equipped with a deflection shaft (34). The outer side of the lower end of the deflection shaft (34) is equipped with a grinding mechanism (6). The impeller blades are ground by the grinding mechanism (6). The upper end of the deflection shaft (34) is equipped with a movable seat (32). The main shaft of the first grinding motor (31) is connected to the movable seat (32). The movable seat (32) and the deflection shaft (34) are connected by a linkage component. The movable seat (32) is equipped with a first hydraulic cylinder (36), the lower end of the deflection shaft (34) is equipped with a telescopic shaft (35), the lower end of the telescopic shaft (35) is equipped with a first grinding wheel, the first hydraulic cylinder (36) is connected to the telescopic shaft (35), and the impeller chassis is ground by the first grinding wheel; The grinding mechanism (6) includes a fixed frame (61), a second grinding motor (62), a first transmission wheel (63), a second transmission wheel (64), a first slide (66), and a second slide (67). The first transmission wheel (63) and the second transmission wheel (64) have axial movement function. The upper end of the first slide (66) is provided with a first driven wheel (661), and the upper end of the second slide (67) is provided with a second driven wheel (671). The lower ends of the first slide (66) and the second slide (67) are both provided with... The first slide (66) is connected to the fixed frame (61) via the first cylinder (65), and the second slide (67) is connected to the fixed frame (61) via the second cylinder (68). The drive shaft of the second grinding motor (62) passes through the first transmission wheel (63) and the second transmission wheel (64). The first transmission wheel (63) is connected to the first driven wheel (661) via the first transmission belt, and the second transmission wheel (64) is connected to the second driven wheel (671) via the second transmission belt. The side end of the fixed frame (61) is provided with a liquid storage tank (611) and a second hydraulic cylinder (613). The liquid storage tank (611) is provided with a pressure plate (612). The second hydraulic cylinder (613) is connected to the pressure plate (612). The upper and lower sides of the first transmission wheel (63) and the second transmission wheel (64) are provided with movable grooves (615). The movable grooves (615) are connected to the liquid storage tank (611) through a diversion channel (614). Each set of movable grooves (615) is provided with a slider (616). The slider (616) is connected to the movable groove (615) through a compression spring. The end of the first transmission wheel (63) and the second transmission wheel (64) near the movable groove (615) is provided with a sliding groove. The sliding groove cooperates with the slider (616). The inside of the fixed frame (61) is also provided with a sensing groove, and the inside of the sensing groove is provided with a conductive block (69). There are two sets of conductive blocks (69). One set of conductive blocks (69) is fixed on the outside of the second slide (67), and the other set of conductive blocks (69) is fixed on the outside of the first slide (66). The two sets of conductive blocks (69) are connected by a conductive rod. The pressure plate (612) is equipped with a third electromagnet (6121). A linkage block is provided at the end of the pressure plate (612) away from the second hydraulic cylinder (613). The linkage block is connected to the second hydraulic cylinder (613). The end of the linkage block near the third electromagnet (6121) is magnetic. The third electromagnet (6121) is connected to an external power source through two sets of conductive blocks (69).

2. The impeller blank grinding equipment for preventing over-grinding according to claim 1, characterized in that: The linkage component includes a second electromagnet (33), a first magnetic block, and a second magnetic block. The second electromagnet (33) is provided in several groups, and the several groups of second electromagnets (33) are evenly arranged on the deflection shaft (34). The first magnetic block is arranged at one end of the movable seat (32) near the second electromagnet (33), and the second magnetic block is arranged at one end of the fixed seat (3) near the second electromagnet (33). The connection method between the movable seat (32) and the deflection shaft (34) is controlled by changing the magnetic pole direction of the second electromagnet (33).

3. The impeller blank grinding equipment for preventing over-grinding according to claim 1, characterized in that: The fixed clamp (11) has a drain channel (12) on its side. The base (1) has a filter tank (13) and a storage chamber (17) inside. The filter tank (13) and the storage chamber (17) are connected by an inclined groove. The filter tank (13) has a filter plate (16) at its lower end. The filter plate (16) has a first electromagnet (14) at its middle position. The filter tank (13) has a lifting sleeve (15) at its upper end. The lifting sleeve (15) has a magnetic end near the first electromagnet (14). The lifting sleeve (15) has a reset spring rod inside. The end of the reset spring rod extending out of the lifting sleeve (15) is connected to the first electromagnet (14).

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