Grinding and polishing device for inner surface of metal capillary tube

Abstract

The invention relates to the technical field of grinding and polishing equipment, and discloses a metal capillary inner surface grinding and polishing device which comprises a bottom mounting plate, and an adjustable feeding multi-station magnetic grinding structure, a pressurized spraying type rotary powder spraying and grinding structure and a replaceable pressurized cleaning structure are mounted on the bottom mounting plate. The device has the beneficial effects that the problems that an existing polishing device is large in overall structure, the pipe diameter of a metal capillary pipe is small, the inner wall of the metal capillary pipe is inconvenient to thoroughly polish when abrasive materials are used for spraying, polishing and polishing, the abrasive materials directly penetrate through a middle cavity of the metal capillary pipe, friction contact between the abrasive materials and the inner pipe wall is small, the grinding and polishing effect is poor, and the polishing efficiency is high are solved. And after the metal capillary tube is ground and polished by using an abrasive, the abrasive is attached to the wall of the tube, and the tube diameter is small, so that the cleaning cannot be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing equipment, and particularly to an inner surface grinding and polishing device for metal capillary tubes. Background Art

[0002] A metal capillary tube is a thin tube made of a metal material and has the property of capillary action. The diameter of the tube is usually very small. When producing metal capillary tubes, the inner wall of the tube is ground and polished.

[0003] The existing polishing equipment has a relatively large overall structure, while the diameter of the metal capillary tube is small. When spraying abrasive for grinding and polishing, it is not convenient to thoroughly grind the inner wall of the metal capillary tube; the abrasive directly passes through the middle cavity of the metal capillary tube and has less frictional contact with the inner tube wall, resulting in poor grinding and polishing effects; after the metal capillary tube is ground and polished with abrasive, the abrasive adheres to the inner wall of the tube, and due to the small diameter, it cannot be cleaned. Summary of the Invention

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: An inner surface grinding and polishing device for metal capillary tubes, comprising: a bottom mounting plate, on which an adjustable feeding multi-station magnetic grinding structure, a pressurized ejection type rotary powder spraying grinding structure, and a replaceable pressurized cleaning structure are mounted;

[0005] The adjustable feeding multi-station magnetic grinding structure includes: an equipment base, a storage bucket, a powder storage chamber, a powder replenishing port, a first electromagnet coil, two pairs of sliding frames, a lifting frame, a moving lower magnet, a pneumatic pump, an air delivery pipe, a gantry support, a feeding pipe, a first powder outlet hopper, an auxiliary powder outlet pipe, a second powder outlet hopper, a compressed air pump, an anti-blocking air inlet pipe, a switching valve, a pair of feeding pipes, a grinding fixing table, a pair of electromagnetic fixing components, and a recycling box;

[0006] The storage bin is installed at the left position of the equipment base. The powder storage cavity is opened inside the storage bin. The powder replenishment port is opened on the side wall of the storage bin. The first electromagnet coil is installed above the powder storage cavity. Two pairs of sliding frames are installed on the inner side wall of the powder storage cavity. The lifting frame is installed on the two pairs of sliding frames. The moving lower magnet is installed on the lifting frame. The air pressure pump is installed on the left side of the storage bin. One end of the air delivery pipe is installed on the air pressure pump, and the other end of the air delivery pipe penetrates and is embedded on the lower wall surface of the powder storage cavity. The portal bracket is installed on the equipment base. The material delivery pipe is embedded on the portal bracket. The left end of the material delivery pipe penetrates and extends into the powder storage cavity. The first powder discharge hopper is installed on the material delivery pipe. One end of the auxiliary powder discharge pipe is connected to the middle position of the material delivery pipe. The second powder discharge hopper is installed at the other end of the auxiliary powder discharge pipe. The compressed air pump is installed on the right side wall of the storage bin. The anti-blocking air inlet pipe is installed at both ends on the compressed air pump and the second powder discharge hopper respectively. The switch valve is installed on the other end of the material delivery pipe. A pair of blanking pipes are installed on the discharge port below the switch valve. The grinding fixing table is installed on the equipment base. A pair of electromagnetic fixing components are installed on the grinding fixing table. The recycling box is installed below the grinding fixing table;

[0007] A sealing screw thread is installed on the powder replenishment port. An electromagnetic valve is arranged on the air delivery pipe. A blockage pressure sensor is installed on the second powder discharge hopper.

[0008] Preferably, one of the pair of electromagnetic fixing components includes: a fixing shell, an installation cavity, a second electromagnet coil, and a fixing elastic sheet;

[0009] The fixing shell is installed on the upper wall surface of the grinding fixing table. The installation cavity is opened inside the fixing shell. The second electromagnet coil is installed inside the installation cavity. The fixing elastic sheet is located at the middle position of the fixing shell.

[0010] Preferably, the pressurized ejection type rotary powder spraying and grinding structure includes: an equipment support, a powder storage box, a powder cavity, a powder inlet, an air compressor pump, a pair of air inlet connecting pipes, a pair of support frames, a pressurizing pipe, a plurality of pressurized air spraying pipes, a pair of shaft fixing blocks, a rotating shaft, a stirring frame, a grinding box, a conveying pipe, a powder inlet hopper, a rotary connecting pipe head, a spiral powder spraying head, a pair of rotary fixing components, and a waste box;

[0011] The powder storage box is installed at the left position on the upper wall of the equipment bracket. The powder chamber is opened inside the powder storage box. The powder inlet is opened on the upper wall of the powder storage box. The air compressor pump is installed at the left position on the powder storage box. The upper ends of a pair of air inlet connecting pipes are installed on the air outlet of the air compressor pump. The lower ends of the pair of air inlet connecting pipes penetrate and extend into the powder chamber. A pair of support frames are installed on the left side wall of the powder chamber. The pressure pipe is installed on the pair of support frames. The pair of air inlet connecting pipes are connected to the pressure pipe. A number of pressure jet pipes are installed on the lower wall of the pressure pipe. A pair of shaft fixing blocks are installed at the middle position between the upper and lower walls of the powder chamber. The rotating shaft is installed on the pair of shaft fixing blocks. The stirring frame is installed on the rotating shaft. The grinding box is installed at the right position on the upper wall of the equipment bracket. The two ends of the conveying pipe are respectively embedded in the powder storage box and the grinding box. The powder inlet hopper is installed at the left end of the conveying pipe. The rotating connecting pipe head is installed at the right end of the conveying pipe. The spiral powder spraying head is installed on the rotating connecting pipe head. A pair of rotating fixing components are installed on the upper inner wall of the grinding box. One of the pair of rotating fixing components is connected to the spiral powder spraying head. The waste box is installed on the lower wall of the equipment bracket. The waste box is located below the grinding box;

[0012] A tightening screw thread is provided on the powder inlet. The rotating shaft is installed on the shaft fixing block through the first rotating bearing. One of the pair of rotating fixing components is connected to the spiral powder spraying head through a connecting rod. An observation window is installed on the grinding box.

[0013] Preferably, one of the pair of rotating fixing components includes: a fixing rod, an outer support sleeve, a second rotating bearing, an inner rotating sleeve, and a pair of rubber support rings;

[0014] The fixing rod is installed on the upper inner wall of the grinding box. The outer support sleeve is installed at the lower end of the fixing rod. The second rotating bearing is installed on the inner wall of the outer support sleeve. The inner rotating sleeve is installed on the inner wall of the second rotating bearing. The pair of rubber support rings are installed on the inner wall of the inner rotating sleeve.

[0015] Preferably, the replaceable pressurized cleaning structure includes: a fixed base, a cleaning box, a drainage grid, a cleaning chamber, a waste water chamber, a mounting bracket, an electric rotating seat, a cleaning fixed grid, a water tank, a mounting plate, a delivery pump, a water suction pipe, a connecting pipe, an activated carbon filter box, a water delivery pipe, a booster pump, a booster pipe, a switch control valve, and a replaceable water outlet assembly;

[0016] The cleaning tank is installed at the middle position of the upper wall surface of the fixed base, the drainage wire rack is installed at the middle position inside the cleaning tank, the cleaning chamber is located above the drainage wire rack, the waste water chamber is located below the drainage wire rack, the installation bracket is installed on the inner wall surface of the cleaning chamber, the electric rotating seat is installed on the installation bracket, the cleaning fixed wire rack is installed on the electric rotating seat, the water tank is installed at the left side position of the cleaning tank, the installation plate is installed above the water tank, the delivery pump is installed on the installation plate, one end of the suction pipe is installed on the water inlet of the delivery pump, the other end of the suction pipe extends downward into the water tank, one end of the connecting pipe is installed on the water outlet of the delivery pump, the activated carbon filter tank is installed at the upper position of the left side wall surface of the cleaning tank, the other end of the connecting pipe is installed on the water inlet of the activated carbon filter tank, the left end of the water delivery pipe is installed on the water outlet of the activated carbon filter tank, the right end of the water delivery pipe is embedded in the water inlet on the upper wall surface of the cleaning tank, the booster pump is installed at the right side position of the cleaning tank, both ends of the booster pipe are respectively installed on the booster pump and the water delivery pipe, the switch control valve is installed on the upper wall surface of the cleaning chamber, the switch control valve is connected to the water delivery pipe, the replaceable water outlet assembly is installed on the upper wall surface of the cleaning chamber, and the replaceable water outlet assembly is connected to the switch control valve;

[0017] An observation chamber door is installed on the front wall surface of the cleaning tank, the delivery pump is installed on the installation plate through fixing bolts, and the activated carbon filter tank is installed on the cleaning tank through a support seat.

[0018] Preferably, the replaceable water outlet assembly includes: a sliding rod frame, a water outlet connection block, three pairs of sliding sleeves, a main water outlet, a micro water outlet, two pairs of fixing frames, and a pair of hydraulic push rods;

[0019] The sliding rod frame is installed on the upper wall surface of the cleaning chamber, three pairs of sliding sleeves are installed on the front and rear wall surfaces of the water outlet connection block, the water outlet connection block is installed on the sliding rod frame through the three pairs of sliding sleeves, both the main water outlet and the micro water outlet are installed on the water outlets on the lower wall surface of the water outlet connection block, two pairs of fixing frames are installed on both sides of the switch control valve, a pair of hydraulic push rods are installed on the two pairs of fixing frames, and the output ends of a pair of hydraulic push rods are installed on both side wall surfaces of the water outlet connection block.

[0020] Preferably, the output ends of a pair of hydraulic push rods are installed on the water outlet connection block through connection blocks.

[0021] Beneficial effects

[0022] The present invention provides a device for grinding and polishing the inner surface of a metal capillary tube, having the following beneficial effects:

[0023] This solution uses a combination of a staged grinding and flushing structure. First, the abrasive is automatically fed through a combination of electromagnetic feeding and pneumatic feeding. The metal capillary is fixed and sealed by electromagnetic means, and in cooperation with the automatic feeding structure, the abrasive is injected into the tube. The inner surface is automatically polished by the reciprocating movement of the metal capillary. Then, the abrasive is ejected in a spiral manner by means of high-pressure rotary powder spraying, so that the spiral abrasive fully contacts and polishes the inner wall of the metal capillary to ensure the polishing effect. Finally, a replaceable stamping and cleaning structure is used, which can be adjusted for cleaning according to different abrasive adhesion conditions to ensure the cleaning effect. This solves the problems that the overall structure of the existing polishing equipment is relatively large, the diameter of the metal capillary is small, it is inconvenient to thoroughly polish the inner wall of the metal capillary when using abrasive for spraying and polishing; the abrasive directly passes through the middle cavity of the metal capillary, with less friction and contact with the inner tube wall, resulting in a poor grinding and polishing effect; after the metal capillary is polished with abrasive, there will be abrasive adhering to the inner wall of the tube, and it is impossible to clean due to the small diameter of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic diagram of the main view partial sectional structure of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0025] Figure 2 FIG. is a schematic diagram of the enlarged structure of a blockage pressure sensor of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0026] Figure 3 FIG. is a schematic diagram of the main view sectional structure of an electromagnetic fixing assembly of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0027] Figure 4 FIG. is a schematic diagram of the main view sectional structure of a pressurized ejection type rotary powder spraying grinding structure of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0028] Figure 5 FIG. is a schematic diagram of the three-dimensional structure of a rotary fixing assembly of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0029] Figure 6 FIG. is a schematic diagram of the main view sectional structure of a replaceable pressurization cleaning structure of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0030] Figure 7 FIG. is a schematic diagram of the enlarged structure of a fixing bolt of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0031] Figure 8 FIG. is a schematic diagram of the enlarged structure of a connecting block of an inner surface grinding and polishing device for a metal capillary according to the present invention.

[0032] In the figure: 1 - bottom mounting plate; A - adjustable feeding multi-station magnetic grinding structure; A1 - equipment base; A2 - material storage barrel; A3 - powder storage cavity; A4 - powder replenishing port; A5 - first electromagnet coil; A6 - sliding frame; A7 - lifting frame; A8 - moving lower magnet; A9 - air pressure pump; A10 - air delivery pipe; A11 - gantry bracket; A12 - material delivery pipe; A13 - first powder discharge hopper; A14 - auxiliary powder discharge pipe; A15 - second powder discharge hopper; A16 - compressed air pump; A17 - anti-blocking air inlet pipe; A18 - switch valve; A19 - blanking pipe; A20 - grinding fixing table; A21 - recycling box; A22 - sealing thread; A23 - solenoid valve; A24 - blockage pressure sensor; A25 - fixed housing; A26 - installation cavity; A27 - second electromagnet coil; A28 - fixed elastic sheet; B - pressurized ejection type rotary powder spraying and grinding structure; B1 - equipment support; B2 - powder storage box; B3 - powder cavity; B4 - powder inlet; B5 - air compressor pump; B6 - air inlet connecting pipe; B7 - support frame; B8 - pressurizing pipe; B9 - pressurized air spraying pipe; B10 - shaft fixing block; B11 - rotating shaft; B12 - stirring frame; B13 - grinding box; B14 - conveying pipe; B15 - powder inlet hopper; B16 - rotary connecting pipe head; B17 - spiral powder spraying head; B18 - waste box; B19 - tightening thread; B20 - first rotary bearing; B21 - connecting rod; B22 - observation window; B23 - fixed rod; B24 - outer support sleeve; B25 - second rotary bearing; B26 - inner rotary sleeve; B27 - rubber support ring; C - replaceable pressurized cleaning structure; C1 - fixed base; C2 - cleaning box; C3 - drainage network frame; C4 - cleaning cavity; C5 - waste water cavity; C6 - installation bracket; C7 - electric rotary seat; C8 - cleaning fixing network frame; C9 - water tank; C10 - mounting plate; C11 - delivery pump; C12 - water suction pipe; C13 - connecting pipe; C14 - activated carbon filter box; C15 - water delivery pipe; C16 - pressurizing pump; C17 - pressurizing pipe; C18 - switch control valve; C19 - observation box door; C20 - fixing bolt; C21 - support seat; C22 - sliding rod frame; C23 - water outlet connecting block; C24 - sliding sleeve; C25 - main water outlet; C26 - micro water outlet; C27 - fixing frame; C28 - hydraulic push rod; C29 - connecting block. Detailed implementation manners

[0033] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment: Please refer to Figure 1-8 , the adjustable feeding multi-station magnetic grinding structure A, the pressurized ejection type rotary powder spraying and grinding structure B, and the replaceable pressurized cleaning structure C are installed on the bottom mounting plate 1.

[0035] When using the adjustable feeding multi-station magnetic grinding structure, the equipment base A1 is used to support the upper equipment. When preparing for grinding, open the sealing screw A22 installed on the powder filling port A4, and put the ground abrasive walnut shell powder into the storage bucket A2 through the powder filling port A4. After the feeding is completed, tighten the sealing screw A22 to ensure the sealing of the storage bucket A2. Operate the controller matching the equipment to start the equipment. The first electromagnet coil A5 installed above the internal part of the powder storage cavity A3 is powered on and starts to generate a magnetic field under the control of the control system. The first electromagnet coil A5 attracts the moving lower magnet A8 installed below on the lifting frame A7 to move upward uniformly through the magnetic field. The moving lower magnet A8 moves upward slowly and uniformly on the sliding frame A6 through the lifting frame A7, so that the abrasive walnut shell powder enters into the first powder outlet hopper A13 and the second powder outlet hopper A15. The abrasive in the second powder outlet hopper A15 is transported into the conveying pipe A12 through the auxiliary powder outlet pipe A14 to realize the collection of the abrasive. The abrasive is transported to the conveying pipe A12 fixed on the gantry bracket A11 through the first powder outlet hopper A13 and the second powder outlet hopper A15. When feeding, the cooperation of the two conical powder outlet hoppers for discharging mainly prevents the abrasive from being blocked due to pressure when entering the hopper mouth position. The powder outlet pressure can be shared through the cooperation of the double powder outlet hoppers to prevent the abrasive from being blocked. At the same time, the blockage pressure sensor A24 installed on the second powder outlet hopper A15 monitors the pressure at the hopper mouth in real time. When it is found that the pressure is too high and blockage may occur, the air compressor A16 installed on the side wall of the storage bucket A2 starts to compress the air to increase the gas pressure to produce high-pressure gas. The high-pressure gas is ejected through the anti-blocking air inlet pipe A17 to perform high-pressure air jet on the pipe orifice position of the second powder outlet hopper A15, effectively preventing the abrasive from being blocked. When the abrasive inside the storage bucket A2 is used up and needs to be replenished, the controller issues a control signal to change the current direction of the first electromagnet coil A5, so that the first electromagnet coil A5 generates a magnetic field repulsive to the moving lower magnet A8, thereby controlling the moving lower magnet A8 to move downward to the bottom of the powder storage cavity A3 to realize the reset of the moving lower magnet A8. When variable-speed feeding is required, the air pressure pump A9 can be used to cooperate with the air conveying pipe A10 to output high-speed air flow. The solenoid valve A23 embedded on the lower wall surface of the powder storage cavity A3 is opened to enable the high-speed air flow to enter the inside of the powder storage cavity A3. The abrasive is driven into the first powder outlet hopper A13 and the second powder outlet hopper A15 by the way of driving the abrasive to rise through the air flow. The speed of powder outlet and feeding is adjusted by adjusting the air flow velocity to realize variable-speed discharging;

[0036] After the abrasive enters the feed pipe A12, it is conveyed to the right. Place the lower nozzle of the metal capillary at the cavity in the middle of the fixed outer shell A25 above the upper wall surface of the grinding and fixing table A20, so that the tube wall of the metal capillary is in the middle position between the fixed outer shell A25 and the fixed elastic piece A28 installed on the grinding and fixing table A20 through the rod bracket. The controller issues a control signal to control the energization and startup of the second electromagnet coil A27 installed in the installation cavity A26 to generate a magnetic field. The magnetic field generated by the second electromagnet coil A27 attracts the fixed elastic piece A28 in the metal capillary. The strip-shaped metal pieces on both sides of the fixed elastic piece A28 are deformed by magnetic attraction and press against the inner wall of the metal capillary, so as to cooperate with the second electromagnet coil A27 to fix the metal capillary. The switching valve A18 is opened, and the abrasive is conveyed downward through a pair of feed pipes A19 so that the abrasive enters the interior of the metal capillary. When the abrasive falls to the bottom of the metal capillary due to gravity, it is blocked due to the fixed elastic piece A28. The controller issues an electrical signal to control the current magnitude of the second electromagnet coil A27, thereby adjusting the magnetic field intensity. By changing the magnetic force magnitude of the second electromagnet coil A27, the fixed support force on the metal capillary is changed, so that the metal capillary moves downward and gradually penetrates the through hole opened on the grinding and fixing table A20. When the metal capillary moves up and down reciprocally, the abrasive is driven by the fixed elastic piece A28 to move in the metal capillary to polish the inner wall, so as to achieve the purpose of feeding and polishing through magnetic force. After the polishing is completed, the metal capillary is taken away, and the abrasive will fall into the recovery box A21 installed below the grinding and fixing table A20 to realize the recycling of the abrasive.

[0037] A pressurized ejection type rotary powder spraying and grinding structure is installed on the equipment support B1. During use, open the screw thread B19 installed on the powder inlet B4 to ensure airtightness, and put the abrasive walnut shell powder for grinding into the powder cavity B3 opened inside the powder storage box B2 through the powder inlet B4 to ensure that there is sufficient abrasive in the powder cavity B3. Open the observation window B22, and place a number of bundled and fixed metal capillary tubes through the middle position of the inner rotating sleeve B26. The rubber support ring B27 provided on the inner wall surface of the inner rotating sleeve B26 deforms to perform interference fixation on the number of metal capillary tubes. When fixing, align the nozzle of the metal capillary tube with the powder outlet of the spiral powder spraying head B17 one by one. Control the controller matched with the equipment to start the equipment. The controller sends a start electrical signal to control the air compressor pump B5 installed on the powder storage box B2 to start. The air compressor pump B5 starts to compress the air pressure through the piston in the pump body, thereby increasing the air pressure. The compressed air is transported through a pair of air inlet connecting pipes B6 into the pressurizing pipe B8 installed in the powder cavity B3 through the support frame B7. The compressed air in the pressurizing pipe B8 sprays out from the air outlet holes on the pressurizing air spraying pipe B9 installed below, blowing the abrasive in the powder cavity B3 to the right, and blowing the walnut shell powder abrasive into the powder inlet hopper B15. Due to the long-term continuous blowing of the pressurizing air spraying pipe B9, the walnut shell powder particles are small and are under wind pressure for a long time, so there may be a caking phenomenon. The stirring frame B12 installed on the rotating shaft B11 rotates slowly under the drive of the drive motor installed above the powder storage box B2, and cooperates with the first rotating bearing B20 on the shaft fixing block B10 to stir the grinding material through the rotation of the stirring frame B12, thereby preventing the abrasive from caking. The abrasive enters the powder inlet hopper B15 along with the high-pressure air flow and is transported through the conveying pipe B14. A number of spiral-shaped powder outlet holes are opened on the spiral powder spraying head B17 installed on the rotating connecting pipe head B16. Under the action of the high-pressure air flow, the spiral powder spraying head B17 rotates and sprays powder in cooperation with the rotating connecting pipe head B16. Due to the cooperation of the spiral powder outlet and the rotation of the spiral powder spraying head B17, the sprayed abrasive is in a spiral shape. When the spiral powder spraying head B17 rotates, it drives the inner rotating sleeve B26 to rotate through the connecting rod B21. The inner rotating sleeve B26 rotates on the outer support sleeve B24 installed in the grinding box B13 through the fixed rod B23 through the second rotating bearing B25. A pair of inner rotating sleeves B26 and the spiral powder spraying head B17 rotate synchronously, so that the spiral-shaped abrasive sprayed by the spiral powder spraying head B17 is sprayed into the metal capillary tube. The spiral-shaped sprayed abrasive can effectively increase the friction between the abrasive and the inner wall of the metal capillary tube to ensure the grinding effect. The used abrasive after grinding falls into the waste material box B18 installed below, thereby realizing the rotary powder spraying and grinding of the metal capillary tube;

[0038] When using the replacement type pressurized cleaning structure, the fixed base C1 supports the overall equipment above. Open the observation chamber door C19, place the bundled and fixed metal capillary tube on the cleaning fixing wire mesh C8 above the electric rotating seat C7 installed in the cleaning chamber C4 through the mounting bracket C6 for installation and fixation. After the fixation is completed, close the observation chamber door C19 to ensure the sealing during cleaning. Operate the controller matching the equipment to start the equipment. The external controller sends a control signal to start the equipment. The delivery pump C11 installed on the mounting plate C10 through the fixing bolt C20 starts after receiving the control signal. The rotating impeller inside the delivery pump C11 starts to rotate at high speed. The water in the water tank C9 is pumped upward through the centrifugal force and the pressure difference on both sides in cooperation with the water suction pipe C12, and the water is continuously injected into the activated carbon filter tank C14 installed on the side wall of the cleaning tank C2 through the support seat C21 through the connecting pipe C13. Since the activated carbon has a large number of micropores and mesoporous structures, these micropores and mesopores provide a huge surface area, thereby increasing the ability of the activated carbon to adsorb pollutants. The pumped water is filtered and purified by the adsorption filtration method. The purified water is transported to the water inlet position on the upper wall surface of the cleaning tank C2 through the water delivery pipe C15 to achieve the purpose of purified water supply. While injecting water, the booster pump C16 installed on the right side of the cleaning tank C2 starts. The booster pump C16 compresses the gas to increase the gas pressure. The high-pressure gas is transported to the connection position with the water delivery pipe C15 through the booster pipe C17 to adjust the pressure of the cleaning spray. When cleaning, the switch control valve C18 is opened. The filtered and pressurized water sprays downward. The cleaning water is transported downward from the water outlet opened on the water outlet connection block C23 connected to the switch control valve C18 and sprays out through the micro water outlet C26 installed on the lower wall surface. It sprays out through the small water channels opened on the micro water outlet C26. The smaller diameter pipe can increase the water flow rate, thereby increasing the water pressure. The stubborn impurities left on the surface of the metal capillary tube due to grinding and polishing are washed and cleaned by the high-pressure sprayed water flow. When the preliminary cleaning is completed, the hydraulic push rod C28 installed in the cleaning tank C2 through the fixing frame C27 starts to extend and retract at the output end. The water outlet connection block C23 is driven through the connection block C29 to move in position on the sliding rod frame C22 in cooperation with the sliding sleeve C24, so that the micro water outlet C26 is replaced by the main water outlet C25 to be connected to the switch control valve C18 for normal water pressure washing and cleaning. While performing the washing and cleaning, the electric rotating seat C7 rotates synchronously. The rotation of the electric rotating seat C7 drives the metal capillary tube to rotate, thereby increasing the contact area with the water flow and ensuring the cleaning effect. The wastewater generated after cleaning leaks into the wastewater chamber C5 through the drainage wire mesh C3 installed in the middle of the cleaning tank C2, and the wastewater is discharged through the drain pipe provided on the rear wall surface of the wastewater chamber C5, so as to achieve the adjusted replacement type washing and cleaning of the metal capillary tube and ensure the cleanliness of the metal capillary tube.

[0039] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and polishing device for the inner surface of a metal capillary tube, comprising: Bottom mounting plate (1), characterized in that an adjustable feeding multi-station magnetic grinding structure (A), a pressurized ejection rotary powder spraying and grinding structure (B), and a replaceable pressurization cleaning structure (C) are mounted on the bottom mounting plate (1); The adjustable feeding multi-station magnetic grinding structure (A) includes: equipment base (A1), material storage barrel (A2), powder storage cavity (A3), powder replenishing port (A4), first electromagnet coil (A5), two pairs of sliding frames (A6), lifting frame (A7), movable lower magnet (A8), air pressure pump (A9), air delivery pipe (A10), gantry bracket (A11), material delivery pipe (A12), first powder discharge hopper (A13), auxiliary powder discharge pipe (A14), second powder discharge hopper (A15), compressed air pump (A16), anti-blocking air inlet pipe (A17), switch valve (A18), a pair of blanking pipes (A19), grinding fixing table (A20), a pair of electromagnetic fixing components, and recovery box (A21); The material storage barrel (A2) is mounted at the left position of the equipment base (A1), the powder storage cavity (A3) is opened inside the material storage barrel (A2), the powder replenishing port (A4) is opened on the side wall of the material storage barrel (A2), the first electromagnet coil (A5) is mounted above the inner part of the powder storage cavity (A3), two pairs of sliding frames (A6) are mounted on the inner side wall of the powder storage cavity (A3), the lifting frame (A7) is mounted on the two pairs of sliding frames (A6), the movable lower magnet (A8) is mounted on the lifting frame (A7), the air pressure pump (A9) is mounted on the left side of the material storage barrel (A2), one end of the air delivery pipe (A10) is mounted on the air pressure pump (A9), and the other end of the air delivery pipe (A10) is embedded and installed on the lower wall of the powder storage cavity (A3), the gantry bracket (A11) is mounted on the equipment base (A1), the material delivery pipe (A12) is embedded in the gantry bracket (A11), the left end of the material delivery pipe (A12) penetrates and extends into the powder storage cavity (A3), the first powder discharge hopper (A13) is mounted on the material delivery pipe (A12), one end of the auxiliary powder discharge pipe (A14) is connected to the middle position of the material delivery pipe (A12), the second powder discharge hopper (A15) is mounted on the other end of the auxiliary powder discharge pipe (A14), the compressed air pump (A16) is mounted on the right side wall of the material storage barrel (A2), the anti-blocking air inlet pipe (A17) is respectively mounted on the compressed air pump (A16) and the second powder discharge hopper (A15) at both ends, the switch valve (A18) is mounted on the other end of the material delivery pipe (A12), a pair of blanking pipes (A19) are mounted on the discharge port below the switch valve (A18), the grinding fixing table (A20) is mounted on the equipment base (A1), a pair of electromagnetic fixing components are mounted on the grinding fixing table (A20), and the recovery box (A21) is mounted below the grinding fixing table (A20); A sealing screw thread (A22) is mounted on the powder replenishing port (A4), a solenoid valve (A23) is provided on the air delivery pipe (A10), and a blockage pressure sensor (A24) is mounted on the second powder discharge hopper (A15).

2. The internal surface grinding and polishing device for a metal capillary tube according to claim 1, wherein One of the pair of electromagnetic fixing components includes: fixing housing (A25), installation cavity (A26), second electromagnet coil (A27), and fixing elastic sheet (A28); The fixed outer shell (A25) is installed on the upper wall surface of the grinding fixed table (A20). The installation cavity (A26) is opened inside the fixed outer shell (A25). The second electromagnet coil (A27) is installed inside the installation cavity (A26). The fixed elastic piece (A28) is located at the middle position of the fixed outer shell (A25).

3. A device for grinding and polishing the inner surface of a metal capillary tube according to claim 1, characterized in that, The pressure ejection type rotary powder spraying and grinding structure (B) includes: an equipment support (B1), a powder storage box (B2), a powder cavity (B3), a powder inlet (B4), an air compressor pump (B5), a pair of air inlet connecting pipes (B6), a pair of support frames (B7), a pressure pipe (B8), a number of pressure air pipes (B9), a pair of shaft fixing blocks (B10), a rotating shaft (B11), a stirring frame (B12), a grinding box (B13), a conveying pipe (B14), a powder inlet hopper (B15), a rotating connecting pipe head (B16), a spiral powder spraying head (B17), a pair of rotating fixing components, and a waste box (B18); The powder storage box (B2) is installed at the left position on the upper wall surface of the equipment support (B1). The powder cavity (B3) is opened inside the powder storage box (B2). The powder inlet (B4) is opened on the upper wall surface of the powder storage box (B2). The air compressor pump (B5) is installed at the left position on the upper part of the powder storage box (B2). The upper ends of a pair of air inlet connecting pipes (B6) are installed on the air outlet of the air compressor pump (B5). The lower ends of the pair of air inlet connecting pipes (B6) penetrate and extend into the powder cavity (B3). A pair of support frames (B7) are installed on the left side wall surface of the powder cavity (B3). The pressure pipe (B8) is installed on the pair of support frames (B7). The pair of air inlet connecting pipes (B6) are connected to the pressure pipe (B8). A number of pressure air pipes (B9) are installed on the lower wall surface of the pressure pipe (B8). A pair of shaft fixing blocks (B10) are installed at the middle positions of the upper and lower wall surfaces of the powder cavity (B3). The rotating shaft (B11) is installed on the pair of shaft fixing blocks (B10). The stirring frame (B12) is installed on the rotating shaft (B11). The grinding box (B13) is installed at the right position on the upper wall surface of the equipment support (B1). The two ends of the conveying pipe (B14) are respectively embedded and installed on the powder storage box (B2) and the grinding box (B13). The powder inlet hopper (B15) is installed at the left end of the conveying pipe (B14). The rotating connecting pipe head (B16) is installed at the right end of the conveying pipe (B14). The spiral powder spraying head (B17) is installed on the rotating connecting pipe head (B16). A pair of rotating fixing components are installed on the upper inner wall surface of the grinding box (B13). One of the pair of rotating fixing components is connected to the spiral powder spraying head (B17). The waste box (B18) is installed on the lower wall surface of the equipment support (B1). The waste box (B18) is located below the grinding box (B13); A tightening screw thread (B19) is provided on the powder inlet (B4). The rotating shaft (B11) is installed on the shaft fixing block (B10) through a first rotating bearing (B20). One of the pair of rotating fixing components is connected to the spiral powder spraying head (B17) through a connecting rod (B21). An observation window (B22) is installed on the grinding box (B13).

4. A metal capillary inner surface grinding and polishing device according to claim 3, characterized in that, One of a pair of rotary fixing components includes: a fixing rod (B23), an outer support sleeve (B24), a second rotary bearing (B25), an inner rotary sleeve (B26), and a pair of rubber support rings (B27); The fixing rod (B23) is installed on the upper inner wall surface of the grinding box (B13), the outer support sleeve (B24) is installed at the lower end of the fixing rod (B23), the second rotary bearing (B25) is installed on the inner wall surface of the outer support sleeve (B24), the inner rotary sleeve (B26) is installed on the inner wall surface of the second rotary bearing (B25), and a pair of rubber support rings (B27) are installed on the inner wall surface of the inner rotary sleeve (B26).

5. A polishing device for the inner surface of a metal capillary tube according to claim 1, characterized in that, The replaceable pressurized cleaning structure (C) includes: a fixing base (C1), a cleaning box (C2), a drainage grid (C3), a cleaning chamber (C4), a waste water chamber (C5), a mounting bracket (C6), an electric rotary seat (C7), a cleaning fixing grid (C8), a water tank (C9), a mounting plate (C10), a delivery pump (C11), a suction pipe (C12), a connecting pipe (C13), an activated carbon filter box (C14), a water delivery pipe (C15), a booster pump (C16), a booster pipe (C17), a switch control valve (C18), and a replaceable water outlet assembly; The cleaning box (C2) is installed at the middle position on the upper wall surface of the fixing base (C1), the drainage grid (C3) is installed at the middle position inside the cleaning box (C2), the cleaning chamber (C4) is located above the drainage grid (C3), the waste water chamber (C5) is located below the drainage grid (C3), the mounting bracket (C6) is installed on the inner wall surface of the cleaning chamber (C4), the electric rotary seat (C7) is installed on the mounting bracket (C6), the cleaning fixing grid (C8) is installed on the electric rotary seat (C7), the water tank (C9) is installed at the left side position of the cleaning box (C2), the mounting plate (C10) is installed above the water tank (C9), the delivery pump (C11) is installed on the mounting plate (C10), one end of the suction pipe (C12) is installed on the water inlet of the delivery pump (C11), the other end of the suction pipe (C12) extends downward into the water tank (C9), one end of the connecting pipe (C13) is installed on the water outlet of the delivery pump (C11), the activated carbon filter box (C14) is installed at the upper position on the left side wall surface of the cleaning box (C2), the other end of the connecting pipe (C13) is installed on the water inlet of the activated carbon filter box (C14), the left end of the water delivery pipe (C15) is installed on the water outlet of the activated carbon filter box (C14), the right end of the water delivery pipe (C15) is embedded in the water inlet on the upper wall surface of the cleaning box (C2), the booster pump (C16) is installed at the right side position of the cleaning box (C2), both ends of the booster pipe (C17) are respectively installed on the booster pump (C16) and the water delivery pipe (C15), the switch control valve (C18) is installed on the upper wall surface of the cleaning chamber (C4), the switch control valve (C18) is connected to the water delivery pipe (C15), and the replaceable water outlet assembly is installed on the upper wall surface of the cleaning chamber (C4), and the replaceable water outlet assembly is connected to the switch control valve (C18); An observation chamber door (C19) is installed on the front wall surface of the cleaning tank (C2). The transfer pump (C11) is installed on the mounting plate (C10) through fixing bolts (C20). The activated carbon filter tank (C14) is installed on the cleaning tank (C2) through a support base (C21).

6. The internal surface grinding and polishing device for a metal capillary tube according to claim 5, wherein The replaceable water outlet assembly includes: a sliding rod frame (C22), a water outlet connection block (C23), three pairs of sliding sleeves (C24), a main water outlet (C25), a micro water outlet (C26), two pairs of fixing frames (C27), and a pair of hydraulic push rods (C28); The sliding rod frame (C22) is installed on the upper wall surface of the cleaning chamber (C4). Three pairs of sliding sleeves (C24) are installed on the front and rear wall surfaces of the water outlet connection block (C23). The water outlet connection block (C23) is installed on the sliding rod frame (C22) through the three pairs of sliding sleeves (C24). The main water outlet (C25) and the micro water outlet (C26) are both installed on the water outlet on the lower wall surface of the water outlet connection block (C23). Two pairs of fixing frames (C27) are installed on both sides of the switch control valve (C18). A pair of hydraulic push rods (C28) are installed on the two pairs of fixing frames (C27). The output ends of the pair of hydraulic push rods (C28) are installed on both side wall surfaces of the water outlet connection block (C23).

7. A device for grinding and polishing the inner surface of a metal capillary tube according to claim 6, characterized in that, The output ends of the pair of hydraulic push rods (C28) are installed on the water outlet connection block (C23) through a connection block (C29).

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