A rapid jet grinding device for centrifugal pump casting blades

Abstract

The present invention discloses a rapid jet polishing device for centrifugal pump casting blades, which relates to the technical field of impeller blank polishing, and includes a polishing device body and a controller. The polishing device body includes a shell, and a jet polishing component, a drive component, a workbench and multiple adjustment components are installed inside the shell. The jet polishing component is installed above the shell, and the drive component is located at the upper end of the shell. The drive component and the jet polishing component cooperate with each other. The workbench is located at the bottom of the drive component, and the workbench and the adjustment component cooperate with each other. The drive component can adjust the position of the jet polishing component, and the jet polishing component can jet polish the impeller on the workbench. A recovery component is provided at the bottom of the shell, and the recovery component can recycle the sprayed polishing particles, so that the device can effectively polish the impeller when in use, can polish each gap of the impeller, and improve the quality of polishing.

Description

Technical Field

[0001] The invention relates to the technical field of impeller blank polishing, in particular to a rapid jet polishing device for centrifugal pump casting blades. Background Art

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

[0003] However, after the impeller is cast, a lot of burrs will remain on its surface, and the burrs will affect the centrifugal force generated when the impeller rotates, so the impeller blank needs to be ground and polished. The existing grinding and polishing equipment cannot effectively polish the fan blades when polishing the impeller blank, because the fan blades have certain blades, and general equipment cannot adapt to blades with different radians, and thus cannot effectively grind and polish the impeller blank. Summary of the Invention

[0004] The object of the present invention is to provide a rapid jet grinding device for casting blades of a centrifugal pump, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rapid jet polishing device for casting blades of a centrifugal pump, comprising a polishing equipment body and a controller, the polishing equipment body comprising a shell, a jet polishing assembly, a drive assembly, a workbench and multiple adjustment assemblies are installed inside the shell, the jet polishing assembly is installed above the shell, the drive assembly is located at the upper end of the shell, the drive assembly and the jet polishing assembly cooperate with each other, the workbench is located at the bottom of the drive assembly, the workbench and the adjustment assembly cooperate with each other, the drive assembly can adjust the position of the jet polishing assembly, the jet polishing assembly can jet polish the impeller on the workbench, and a recovery assembly is provided at the bottom of the shell, and the recovery assembly can recover the sprayed polishing particles.

[0006] Furthermore, the driving assembly includes a support platform, a driving motor is installed above the support platform, a driving rod is installed at the output end of the driving motor, the driving rod is located inside the driving cavity, a slider is provided above the driving rod, the slider cooperates with the slide groove, electromagnets are respectively installed at both ends of the driving rod, an arc groove is provided on the outside of the support platform, and an arc groove is also provided inside the shell parallel to the support platform, a metal slider is provided between the two groups of the arc grooves, and the metal slider cooperates with the jet grinding assembly.

[0007] Furthermore, the jet polishing assembly includes a jet pump, which is installed above the shell. The jet pump cooperates with the recovery assembly. A transmission pipe is installed at the output end of the jet pump, and a polishing nozzle is installed at the other end of the transmission pipe. The polishing nozzle is installed in a metal slider. The metal slider is a magnetic metal. The metal slider cooperates with the electromagnet. The diameter of the transmission pipe gradually decreases from one end to the other end where it is connected to the jet pump. The transmission pipe is connected to the contact point above the shell through a bearing.

[0008] Furthermore, an inflatable ring is provided inside the shell, and an air pump is provided outside the shell. The air pump is connected to the inflatable ring, and the output end of the inflatable ring is connected to the polishing nozzle. The inflatable ring can adjust the inclination angle of the polishing nozzle.

[0009] Furthermore, the workbench includes a support block, a limit plate and a refraction plate, the support block is located at the bottom of the workbench, the limit plate is installed above the support block through an annular plate, the refraction plate is installed above the limit plate through an annular block, multiple groups of pressure sensor plates are arranged at the bottom of the refraction plate, a servo motor is installed between the support block and the limit plate, a driving wheel is installed at the output end of the servo motor, the driving wheel is located above the limit plate, the driving wheel is installed on the limit plate through a bearing, multiple groups of driven wheels are installed on the limit plate, the driven wheel is meshed with the driving wheel, a mounting sleeve is installed above the driven wheel, the output end of the mounting sleeve is located above the refraction plate, an impeller blank is installed in the mounting sleeve, and the pressure sensor plates are evenly installed around the mounting sleeve.

[0010] Furthermore, a groove is provided under the support platform, a support rod is installed in the groove, the support platform can change its own tilt direction on the support rod, a hemisphere is installed on the refraction plate, a limiting column is installed above the hemisphere, the other end of the limiting column is connected to the bottom of the support platform, and the limiting column can limit the workbench when the workbench is offset.

[0011] Furthermore, multiple groups of the adjustment components are equidistantly installed inside the shell, and the adjustment components include an adjustment screw and an adjustment motor. A slot is provided on the inner wall of the shell, and an adjustment screw is installed inside the slot. Both ends of the adjustment screw are installed inside the slot through bearings. The adjustment motor is installed between the inner walls of the shell, and the output end of the adjustment motor is connected to the adjustment screw. A shift rod is installed outside the adjustment screw. Multiple groups of limit grooves are provided on the side of the workbench, and the other end of the shift rod is installed inside the limit groove.

[0012] Furthermore, the recycling component includes a recycling box and two groups of feeding components, one group of the feeding components is installed inside the recycling box, and the other group of the feeding components is installed outside the recycling box.

[0013] Furthermore, the feeding assembly includes a feeding pipe, which is connected to the bottom of the shell, a feeding screw is installed inside the feeding pipe, a feeding motor is installed outside the feeding pipe, and the feeding motor is connected to the feeding screw. The output end of one group of feeding assemblies located inside the recycling box is connected to the side of another group of feeding assemblies, and the output end of one group of feeding assemblies located outside the recycling box is connected to the jet polishing assembly.

[0014] Furthermore, a controller is installed on the side of the shell, and a control panel is provided on the outside of the shell, and the control panel is connected to the controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Therefore, when the device is in use, it can adapt to the curvature of the impeller blades and will not be affected by the blades and the polishing will not be affected. Moreover, when polishing multiple impellers, the device can ensure that each impeller blank can obtain a good polishing effect, and some blade angle positions can also be effectively polished;

[0017] 2. During the specific grinding, the jet grinding component can remove the burrs and grind the impeller blank through polishing particles, and polish the surface of the impeller blank. At the same time, according to the stress of the impeller blank, the jet angle can be adjusted automatically, so that the jet grinding component can be at the most suitable angle to polish the impeller blank;

[0018] 3. When the jet polishing component is performing jet polishing on the impeller blank, the adjustment component can adjust the inclination angle of the workbench, and then adjust the inclination angle of the current impeller blank, so that the jet polishing component can focus on polishing a certain area of ​​the impeller blank. At the same time, the controller can control the servo motor to drive the driving wheel to rotate, and then drive the mounting sleeve to rotate, so that the impeller blank rotates slowly together, so that the impeller blank can be polished more evenly and the polishing is more perfect when polishing and polishing.

[0019] 4. At the same time, when the jet grinding component sprays the polishing particles toward the impeller blank, it will scrape against the surface of the impeller blank, and some of it will hit the refraction plate, and then the polishing particles will be rebounded to the bottom surface of the impeller blank through the refraction plate, and then the bottom surface of the impeller blank will be scratched and polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the present invention as a whole;

[0022] Figure 3Schematic diagram of the cross-sectional structure of the housing of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure of two feeding components of the present invention;

[0024] Figure 5 Schematic diagram of the matching structure of the driving wheel and the driven wheel of the present invention;

[0025] Figure 6 For the present invention Figure 2 An enlarged schematic diagram of point "A" in the figure;

[0026] Figure 7 For the present invention Figure 3 An enlarged schematic diagram of point "B" in the middle;

[0027] Figure 8 For the present invention Figure 2 Enlarged diagram of point "C" in the figure.

[0028] In the figure: 1. Grinding equipment body; 11. Shell; 111. Support rod; 2. Jet grinding assembly; 21. Jet pump; 22. Transmission pipe; 23. Polishing nozzle; 3. Drive assembly; 31. Support table; 32. Drive motor; 33. Drive rod; 34. Electromagnet; 35. Metal slider; 4. Workbench; 41. Support block; 42. Limit plate; 43. Refraction plate; 44. Servo motor; 45. Driving wheel; 46. Driven wheel; 47. Mounting sleeve; 5. Adjustment assembly; 51. Adjustment screw; 52. Adjustment motor; 6. Recovery assembly; 61. Recovery box; 7. Feeding assembly; 71. Feeding pipe; 72. Feeding screw; 73. Feeding motor; 8. Controller. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example: Figures 1-8As shown, the present invention provides a rapid jet polishing device for casting blades of a centrifugal pump, comprising a polishing device body 1 and a controller 8, wherein the polishing device body 1 comprises a shell 11, wherein a jet polishing assembly 2, a drive assembly 3, a workbench 4 and a plurality of adjustment assemblies 5 are installed inside the shell 11, wherein the jet polishing assembly 2 is installed above the shell 11, wherein the drive assembly 3 is located at the upper end inside the shell 11, wherein the drive assembly 3 cooperates with the jet polishing assembly 2, wherein the workbench 4 is located at the bottom of the drive assembly 3, wherein the workbench 4 cooperates with the adjustment assembly 5, wherein the drive assembly 3 can adjust the position of the jet polishing assembly 2, wherein the jet polishing assembly 2 can jet polish the impeller on the workbench 4, and wherein a recovery assembly 6 is provided at the bottom of the shell 11, wherein the recovery assembly 6 can recover the polishing particles ejected;

[0031] Therefore, when the device is in use, first, the polishing particles need to be injected into the recovery component 6, so that the jet polishing component 2 can continuously perform jet polishing on the impeller blank, and then the impeller blank to be polished needs to be installed on the workbench 4, and then the staff can start the device and perform jet polishing on the impeller blank through the jet polishing component 2. When the jet polishing component 2 is polishing the impeller blank, the driving component 3 can adjust the position of the jet polishing component 2, thereby adapting to the shape and position of the impeller blank, so that the jet polishing component 2 can accurately The impeller blank is polished. At the same time, the workbench 4 can adjust the positions of different blades of the polishing impeller during the polishing process, thereby avoiding the polishing particles sprayed by the jet polishing component 2 from being unable to polish each blade of the impeller blank. The polishing particles sprayed by the jet polishing component 2 do not directly hit the surface of the object, but scratch the surface of the object, thereby achieving the polishing effect. The adjustment component 5 of the device can adjust the inclination of the impeller blank during the polishing process, thereby allowing the polishing particles to better scratch the surface of the impeller blank, thereby better polishing the impeller blank.

[0032] like Figure 2-Figure 3 and Figure 6 As shown, in this embodiment, specifically, the driving assembly 3 includes a support platform 31, a driving motor 32 is installed above the support platform 31, a driving rod 33 is installed at the output end of the driving motor 32, the driving rod 33 is located inside the driving cavity, a slider is provided above the driving rod 33, the slider cooperates with the slide groove, and electromagnets 34 are respectively installed at both ends of the driving rod 33, an arc groove is provided on the outside of the support platform 31, and an arc groove is also provided inside the shell 11 parallel to the support platform 31, a metal slider 35 is provided between the two groups of the arc grooves, and the metal slider 35 cooperates with the jet grinding assembly 2;

[0033] When the driving component 3 of the device is in use, it can drive the jet grinding component 2 to move around the driving component 3 to change the spraying position of the jet grinding component 2. During specific use, the driving motor 32 can drive the driving rod 33 to rotate, and the driving rod 33 can rotate in the driving cavity. The driving rod 33 will rotate in the driving cavity in the support block 41 with the cooperation of the slider and the slide groove. Because electromagnets 34 are respectively installed at both ends of the driving rod 33, when the electromagnet 34 is energized, a magnetic field will be generated around the electromagnet 34, thereby attracting magnetic metal, and the electromagnet 34 of the device can attract the metal slider 35. When the position of the electromagnet 34 changes, it can also drive the metal slider 35 to move together, so that the metal slider 35 moves in the two sets of arc grooves, thereby driving the jet grinding component 2 to move together.

[0034] like Figure 1-Figure 2 As shown, in this embodiment, specifically, the jet polishing assembly 2 includes a jet pump 21, which is installed above the housing 11. The jet pump 21 cooperates with the recovery assembly 6. A transmission pipe 22 is installed at the output end of the jet pump 21, and a polishing nozzle 23 is installed at the other end of the transmission pipe 22. The polishing nozzle 23 is installed in a metal slider 35. The metal slider 35 is a magnetic metal. The metal slider 35 cooperates with the electromagnet 34. The diameter of the transmission pipe 22 gradually decreases from one end to the other end where it is connected to the jet pump 21. The transmission pipe 22 is connected to the upper contact portion of the housing 11 through a bearing.

[0035] When in use, the jet polishing component 2 of the device can spray polishing particles onto the impeller blank, so that the polishing particles can polish the impeller blank or the workpiece. When in use, the jet pump 21 can absorb the polishing particles in the recovery component 6 and continuously pressurize it inside, so that the polishing particles have enough impact force to impact and polish the impeller blank. Because the diameter of the transmission tube 22 gradually decreases from the input end to the output end, the impact speed of the polishing particles will increase again, thereby making up for the consumption of the polishing particles when being transmitted.

[0036] like Figure 2 and Figure 6 As shown, in this embodiment, specifically, an inflatable ring is provided inside the housing 11, and an air pump is provided outside the housing 11. The air pump is connected to the inflatable ring, and the output end of the inflatable ring is connected to the polishing nozzle 23. The inflatable ring can adjust the inclination angle of the polishing nozzle 23;

[0037] When the angle of the jet polishing component 2 of the device needs to be adjusted, the controller 8 will control the air pump to inflate the inflatable ring so that the sufficient inflatable ring can change the direction angle of the polishing nozzle 23. Because the inflatable ring is made of rubber, the degree to which the inflatable ring can expand can push the polishing nozzle 23 to a farther position.

[0038] like Figure 2-Figure 3 and Figure 5 As shown, in this embodiment, specifically, the workbench 4 includes a support block 41, a limit plate 42 and a deflection plate 43, the support block 41 is located at the bottom of the workbench 4, the limit plate 42 is installed above the support block 41 through an annular plate, the deflection plate 43 is installed above the limit plate 42 through an annular block, and multiple groups of pressure sensing plates are provided at the bottom of the deflection plate 43, a servo motor 44 is installed between the support block 41 and the limit plate 42, a driving wheel 45 is installed at the output end of the servo motor 44, the driving wheel 45 is located above the limit plate 42, the driving wheel 45 is installed on the limit plate 42 through a bearing, multiple groups of driven wheels 46 are installed on the limit plate 42, the driven wheel 46 is meshed with the driving wheel 45, a mounting sleeve 47 is installed above the driven wheel 46, the output end of the mounting sleeve 47 is located above the deflection plate 43, an impeller blank is installed in the mounting sleeve 47, and the pressure sensing plates are evenly installed around the mounting sleeve 47;

[0039] When in use, the workbench 4 of the device can support the impeller blank and provide a supporting platform for the impeller blank. During specific use, the staff can install the impeller blank in the mounting sleeve 47. At this time, the jet polishing assembly can be started to polish the impeller blank. When the polishing particles are sprayed onto the impeller blank, the impeller blank can be driven to rotate through the workbench 4, thereby changing the contact position between the polishing particles and the impeller blank. When the polishing particles contact the deflection plate 43, they will also bounce toward the impeller blank. Although the polishing effect of the polishing particles will be slightly reduced after rebounding, they can still make up for the places that could not be polished during the first polishing. Moreover, when the polishing particles are sprayed onto the deflection plate 43 at one place, the signal transmitted to the controller 8 by the pressure sensing plate will be continuous. When a certain time is reached, the controller 8 will control the driving assembly 3 to drive the jet polishing assembly to adjust the position, so that the polishing particles can better polish the impeller blank.

[0040] like Figure 2-Figure 3As shown, in this embodiment, specifically, a groove is opened under the support platform 31, and a support rod 111 is installed in the groove. The support platform 31 can change its own tilt direction on the support rod 111. A hemisphere is installed on the refraction plate 43, and a limiting column is installed above the hemisphere. The other end of the limiting column is connected to the bottom of the support platform 31. When the workbench 4 deviates, the limiting column can limit the workbench 4;

[0041] The support platform 31 can be supported by the support rod 111 during adjustment, and the limiting column on the deflection plate 43 also serves to limit the workbench 4, so that the workbench 4 can be supported by the limiting column and the support rod 111 when it deflects.

[0042] like Figure 2-Figure 3 and Figure 7 As shown, in this embodiment, specifically, multiple groups of the adjustment components 5 are equidistantly installed inside the housing 11, and the adjustment components 5 include an adjustment screw 51 and an adjustment motor 52. A slot is provided on the inner wall of the housing 11, and the adjustment screw 51 is installed inside the slot. Both ends of the adjustment screw 51 are installed inside the slot through bearings. The adjustment motor 52 is installed between the inner walls of the housing 11, and the output end of the adjustment motor 52 is connected to the adjustment screw 51. A shift rod is installed outside the adjustment screw 51, and multiple groups of limit grooves are provided on the side of the workbench 4. The other end of the shift rod is installed inside the limit groove;

[0043] When the adjusting motor 52 drives the adjusting screw 51 to rotate, the adjusting motor 52 drives the adjusting screw 51 to rotate, and when the adjusting screw 51 rotates, the adjusting rod 51 is driven to rotate. However, because the moving direction of one end of the adjusting rod is limited by the limit groove, the other end of the adjusting rod can only move within the limit groove. When the adjusting motor 52 drives the adjusting screw 51 to rotate, the adjusting rod will move up and down on the adjusting screw 51. When the adjusting rod moves up and down, when the adjusting rod reaches one end of the limit groove, it will apply force to the limit groove. When the applied force continues to increase, the working table 4 will be driven to tilt in the direction of the force through the adjusting rod, thereby adjusting the tilt degree and tilt direction of the working table 4.

[0044] like Figure 1-Figure 3 As shown, in this embodiment, specifically, the recycling assembly 6 includes a recycling box 61 and two sets of feeding assemblies 7, one set of the feeding assemblies 7 is installed inside the recycling box 61, and the other set of the feeding assemblies 7 is installed outside the recycling box 61;

[0045] When in use, the recovery component 6 of the device can collect the polishing particles that enter the recovery component 6 and transfer the polishing particles so that the polishing particles can be supplied to the jet grinding component 2 again. During specific use, the polishing particles that have been sprayed will fall into the recovery component 6 after rubbing against the impeller blank, and will first fall into one of the feeding components 7. The polishing particles will be transferred to another group of feeding components 7 outside through the feeding component 7 located at the bottom of the recovery box 61, and then the polishing particles will be supplied to the jet grinding component 2 through the external feeding component 7.

[0046] like Figure 4 and Figure 8 As shown, in this embodiment, specifically, the feeding assembly 7 includes a feeding pipe 71, the feeding pipe 71 is connected to the bottom of the shell 11, a feeding screw 72 is installed inside the feeding pipe 71, a feeding motor 73 is installed outside the feeding pipe 71, and the feeding motor 73 is connected to the feeding screw 72. The output end of a group of feeding assemblies 7 located inside the recovery box 61 is connected to the side of another group of feeding assemblies 7, and the output end of a group of feeding assemblies 7 located outside the recovery box 61 is connected to the jet grinding assembly 2;

[0047] When in use, the feeding component 7 can transport and transfer materials. During specific use, the feeding motor 73 can drive the feeding screw 72 to rotate, and the feeding screw 72 contacts the inner wall of the feeding tube 71. When the polishing particles enter the feeding tube 71, they will only move to the other end along the screw groove under the rotation of the feeding screw 72. Because the polishing particles will first enter the feeding component 7 located in the recovery box 61, the polishing particles can be transferred from the inside of the recovery box 61 to the outside, and then through the external feeding component 7, the polishing particles will be supplied to the jet grinding component 2 again.

[0048] like Figure 1 As shown, in this embodiment, specifically, a controller 8 is installed on the side of the housing 11, and a control panel is provided on the outside of the housing 11, and the control panel is connected to the controller 8;

[0049] When the device is in use, various accessories of the device can be controlled by the controller 8, and the controller 8 can be controlled by the control panel, and then the device can be indirectly controlled by the control panel.

[0050] Working principle: When the device is in use, first, the polishing particles need to be injected into the recovery component 6, so that the jet polishing component 2 can continuously perform jet polishing on the impeller blank. Then, the impeller blank to be polished needs to be installed on the workbench 4. After that, the staff can start the device and perform jet polishing on the impeller blank through the jet polishing component 2. When the jet polishing component 2 is polishing the impeller blank, the driving component 3 can adjust the position of the jet polishing component 2, thereby adapting to the shape and position of the impeller blank, so that the jet polishing component 2 can accurately polish the impeller blank. The impeller blank can be polished accurately. At the same time, the workbench 4 can adjust the position of different blades of the polishing impeller during the polishing process, thereby avoiding the polishing particles sprayed by the jet polishing component 2 from being unable to polish each blade of the impeller blank. The polishing particles sprayed by the jet polishing component 2 do not directly hit the surface of the object, but scratch the surface of the object, thereby achieving the polishing effect. The adjustment component 5 of the device can adjust the inclination of the impeller blank during the polishing process, thereby allowing the polishing particles to better scratch the surface of the impeller blank, thereby better polishing the impeller blank.

[0051] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rapid jet grinding device for centrifugal pump casting blades, comprising a grinding device body (1) and a controller (8), characterized in that: The polishing equipment body (1) includes a shell (11), wherein a jet polishing assembly (2), a driving assembly (3), a workbench (4) and a plurality of adjustment assemblies (5) are installed inside the shell (11), wherein the jet polishing assembly (2) is installed above the shell (11), wherein the driving assembly (3) is located at the upper end inside the shell (11), wherein the driving assembly (3) and the jet polishing assembly (2) cooperate with each other, wherein the workbench (4) is located at the bottom of the driving assembly (3), wherein the workbench (4) and the adjustment assembly (5) cooperate with each other, wherein the driving assembly (3) can adjust the position of the jet polishing assembly (2), wherein the jet polishing assembly (2) can jet polish the impeller on the workbench (4), wherein a recovery assembly (6) is provided at the bottom of the shell (11), wherein the recovery assembly (6) can recover the polishing particles sprayed out; The driving assembly (3) includes a support platform (31), a driving motor (32) is installed above the support platform (31), a driving rod (33) is installed at the output end of the driving motor (32), the driving rod (33) is located inside the driving cavity, a slider is provided above the driving rod (33), the slider cooperates with the slide groove, and electromagnets (34) are respectively installed at both ends of the driving rod (33), an arc groove is provided on the outside of the support platform (31), and an arc groove is also provided inside the shell (11) parallel to the support platform (31), a metal slider (35) is provided between the two groups of the arc grooves, and the metal slider (35) cooperates with the jet grinding assembly (2); The jet polishing assembly (2) includes a jet pump (21), which is installed above the housing (11). The jet pump (21) cooperates with the recovery assembly (6). A transmission pipe (22) is installed at the output end of the jet pump (21), and a polishing nozzle (23) is installed at the other end of the transmission pipe (22). The polishing nozzle (23) is installed in a metal slider (35). The metal slider (35) is a magnetic metal. The metal slider (35) cooperates with the electromagnet (34). The diameter of the transmission pipe (22) gradually decreases from one end to the other end connected to the jet pump (21). The transmission pipe (22) is connected to the housing (11) at a contact point via a bearing.

2. A rapid jet polishing device for centrifugal pump casting blades according to claim 1, characterized in that: An inflatable ring is provided inside the housing (11), and an air pump is provided outside the housing (11). The air pump is connected to the inflatable ring. The output end of the inflatable ring is connected to the polishing nozzle (23). The inflatable ring can adjust the inclination angle of the polishing nozzle (23).

3. A rapid jet polishing device for centrifugal pump casting blades according to claim 2, characterized in that: The workbench (4) includes a support block (41), a limit plate (42) and a refraction plate (43), wherein the support block (41) is located at the bottom of the workbench (4), the limit plate (42) is mounted above the support block (41) through an annular plate, and the refraction plate (43) is mounted above the limit plate (42) through an annular block, and a plurality of pressure sensing plates are provided at the bottom of the refraction plate (43), a servo motor (44) is installed between the support block (41) and the limit plate (42), and a driving wheel ( 45), the driving wheel (45) is located above the limiting plate (42), the driving wheel (45) is mounted on the limiting plate (42) through a bearing, a plurality of driven wheels (46) are mounted on the limiting plate (42), the driven wheels (46) are meshed with the driving wheel (45), a mounting sleeve (47) is mounted above the driven wheel (46), the output end of the mounting sleeve (47) is located above the refraction plate (43), an impeller blank is mounted in the mounting sleeve (47), and the pressure sensing plates are evenly mounted around the mounting sleeve (47).

4. The rapid jet polishing device for centrifugal pump casting blades according to claim 3, characterized in that: A groove is provided below the support platform (31), a support rod (111) is installed in the groove, and the support platform (31) can change its own tilt direction on the support rod (111). A hemisphere is installed on the refraction plate (43), and a limiting column is installed above the hemisphere. The other end of the limiting column is connected to the bottom of the support platform (31), and the limiting column can limit the workbench (4) when the workbench (4) deviates.

5. A rapid jet polishing device for centrifugal pump casting blades according to claim 4, characterized in that: A plurality of adjustment components (5) are equidistantly installed inside the housing (11), and the adjustment components (5) include an adjustment screw (51) and an adjustment motor (52). A slot is provided on the inner wall of the housing (11), and an adjustment screw (51) is installed inside the slot. Both ends of the adjustment screw (51) are installed inside the slot through bearings. The adjustment motor (52) is installed between the inner walls of the housing (11), and the output end of the adjustment motor (52) is connected to the adjustment screw (51). A shifting rod is installed outside the adjustment screw (51). A plurality of limit slots are provided on the side of the workbench (4), and the other end of the shifting rod is installed inside the limit slot.

6. A rapid jet polishing device for centrifugal pump casting blades according to claim 5, characterized in that: The recycling assembly (6) comprises a recycling box (61) and two groups of feeding assemblies (7), one group of feeding assemblies (7) is installed inside the recycling box (61), and the other group of feeding assemblies (7) is installed outside the recycling box (61).

7. A rapid jet polishing device for centrifugal pump casting blades according to claim 6, characterized in that: The feeding assembly (7) includes a feeding pipe (71), the feeding pipe (71) is connected to the bottom of the shell (11), a feeding screw (72) is installed inside the feeding pipe (71), a feeding motor (73) is installed outside the feeding pipe (71), and the feeding motor (73) is connected to the feeding screw (72), the output end of one group of feeding assemblies (7) inside the recycling box (61) is connected to the side of another group of feeding assemblies (7), and the output end of one group of feeding assemblies (7) outside the recycling box (61) is connected to the jet grinding assembly (2).

8. The rapid jet polishing device for centrifugal pump casting blades according to claim 7, characterized in that: A controller (8) is installed on the side of the housing (11), and a control panel is provided on the outside of the housing (11), and the control panel is connected to the controller (8).

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