Portable cavitation abrasive water jet polishing device

Abstract

The invention discloses portable cavitation abrasive water jet polishing equipment, and relates to the technical field of water jet polishing. Comprising an abrasive water jet mechanism and a screening device. A left tank body and a right tank body are arranged in the abrasive water jet mechanism, two air inlet pipelines are arranged on the upper portion and the lower portion of each tank body respectively, and a liquid outlet pipeline and a liquid drainage pipeline are arranged on the upper portion and the lower portion of each tank body respectively. And the liquid outlet pipeline is provided with a funnel-shaped pipeline in the tank body. Abrasive and aqueous solution are fully mixed through ventilation of the lower air inlet pipeline, and mixed liquid flows into the funnel-shaped pipeline and flows into the liquid outlet pipeline through ventilation of the upper air inlet pipeline. Therefore, the workpiece is polished. The left tank body and the right tank body can achieve bidirectional polishing, and the machining efficiency is improved. The screening device can detect whether the particle size of the abrasive meets the use requirement or not, and the reliability of the device is improved.

Description

Technical Field

[0001] The invention relates to a workpiece polishing device, in particular to a part with a complex inner surface. Background Art

[0002] With the rapid development of industrial technology, in order to meet the requirements of high-precision and complex parts processing, high-precision polishing of parts is essential. Traditional mechanical polishing is difficult to process parts with complex internal surfaces. Abrasive flow polishing plays a vital role. Abrasive flow polishing is a process in which abrasive media flows through the surface of the workpiece to be processed under pressure. It has good processing adaptability and high efficiency, and is widely used in the polishing of precision parts.

[0003] However, the abrasive of the existing abrasive flow polishing equipment is usually polished in the form of paste, that is, the abrasive paste is polished on the workpiece by squeezing the piston with hydraulic pressure. This processing method is too slow to achieve high-speed polishing, and the existing abrasive flow polishing equipment generally has the disadvantages of large size and high cost. The hydraulic station and clamping device are not only bulky, but also increase the complexity of the machine. Summary of the invention

[0004] In order to overcome the defects of the prior art such as poor fluidity of abrasive paste, slow polishing speed, bulky equipment and difficulty in polishing small parts, the present invention provides a polishing equipment using cavitation water jet abrasive polishing technology, which mixes the abrasive and the solution evenly, and makes the mixed liquid flow through the surface to be processed by high pressure, and then combines the cavitation ability of the nozzle to improve the polishing efficiency and complete the polishing of the workpiece.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a cavitation abrasive water jet polishing equipment, including left and right tanks for polishing liquid, and air inlets are respectively installed on the upper and lower parts of the tanks, through which high-pressure gas can be introduced. The gas introduced from the lower part can mix the abrasive and the solution evenly, and the gas introduced from the upper part can pass the mixed liquid into the pipeline by pressure. Abrasive mixed liquid input ports are provided on both sides of the left and right tanks, and funnel-shaped pipes are provided at the input ports to facilitate the flow of polishing liquid into the pipeline. The end of the pipeline is connected to a pipe joint, which is connected to a nozzle through the pipe joint, and the nozzle is connected to a workpiece to achieve inner surface polishing. The pipe joint is connected to a handheld spray gun to achieve outer surface polishing. A mixed liquid outflow pipe is also provided below the tank, and the abrasive particle size detection can be performed through the outflow pipe.

[0006] In the above-mentioned cavitation abrasive water jet polishing equipment, the left funnel-shaped pipe is connected to the nozzle through the internal pipe of the equipment, the left nozzle is connected to one end of the workpiece, the other end of the workpiece is connected to the right nozzle, the right nozzle is connected to the internal pipe of the equipment, and the internal pipe is connected to the funnel-shaped pipe of the right tank body, together forming a mixed liquid circulation loop.

[0007] The above-mentioned cavitation abrasive water jet polishing equipment, the handheld spray gun, sprays the mixed liquid on the position on the workpiece surface that needs to be processed. The handheld spray gun is arranged inside the equipment and can be taken out according to the usage.

[0008] In the above-mentioned cavitation abrasive water jet polishing equipment, the workpiece is placed on a processing plane on the side of the equipment, and the processing plane is a connecting rod mechanism that can play a supporting role.

[0009] In the above-mentioned cavitation abrasive water jet polishing equipment, the abrasive particle size detection is a screening device, a certain amount of mixed liquid flows out from the outflow pipes under the left and right tanks, and is put into the screening device to detect whether the abrasive particle size meets the use standard. The screening device is a vibrating element, which consists of a screen and a screen frame, and screens the particles through vibration.

[0010] The beneficial effect of the present invention is that the cavitation water jet of the present invention adopts a more fluid polishing liquid as a polishing tool, which improves the adaptability of processing and effectively eliminates the shortcomings of traditional abrasive flow polishing such as the inability to polish at high speed. The left and right tanks are pressurized respectively, and the workpiece is polished in a bidirectional polishing manner, which improves the utilization rate of the mixed liquid and improves the processing efficiency. The workpiece is placed on a processing plane, and its outer surface can be conveniently polished using a handheld spray gun. The workpiece is placed on a processing plane, and the nozzle is connected to the workpiece, and its inner surface can be polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0012] Figure 1 A three-dimensional structural schematic diagram of an abrasive water jet polishing device is provided for the present invention;

[0013] Figure 2 The present invention provides a front view schematic diagram of an abrasive water jet polishing device;

[0014] Figure 3 The present invention provides a schematic diagram of the internal structure of an abrasive water jet polishing device;

[0015] Figure 4 The present invention provides a cross-sectional front view structural schematic diagram of a right tank body of a mixed liquid in an abrasive water jet polishing device.

[0016] Legend: 1. Abrasive water jet mechanism; 4. Pressure regulating valve; 5. Pressure reducing valve; 6. Right tank body; 7. Pressure plate buckle; 8. Right tank body cover; 11. Left tank body cover; 12. Left tank body; 13. Drain port; 14. Fomar wheel; 15. Screening net; 16. Screening machine; 17. Air source port; 18. Working platform; 19. Nozzle; 20. Spray gun; 21. Liquid circuit electromagnetic switch valve; 22. Solenoid valve fixing bracket; 23. Gas circuit electromagnetic switch valve; 24. Gas circuit three-position five-way solenoid valve; 25. Drain pipe; 26. Lower air inlet pipe; 27. Funnel-shaped pipe; 28. Liquid outlet pipe; 29. ​​Upper air inlet pipe; 30. Clamp joint; DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Embodiment 1

[0020] like Figure 1-4 As shown, the present invention provides a cavitation abrasive water jet polishing device, including an abrasive water jet mechanism 1, and drainage ports 13 are respectively provided on both sides of the abrasive water jet mechanism 1, and the drainage ports 13 are connected to the internal pipeline and finally connected to the drainage pipeline 25.

[0021] The liquid discharge pipe 25 is provided with a liquid discharge port 13 and a liquid circuit electromagnetic switch valve 21. The liquid discharge pipe 25 is communicated with the lower part of the right tank body 6, the lower air intake pipe 26 is communicated with the lower part of the right tank body 6, the funnel-shaped pipe 27 is connected with the liquid discharge pipe 28 and installed on the upper part of the right tank body 6, and the upper air intake pipe 29 is communicated with the upper part of the right tank body 6. The right tank body 6 includes a right tank body cover 8 and a pressure plate buckle 7. The right tank body 6 and the right tank body cover 8 are connected and sealed by the pressure plate buckle 7.

[0022] The lower air intake pipeline 26 is provided with an air circuit electromagnetic switch valve 23, a pressure reducing valve 5, and an air circuit three-position five-way valve 24, and is finally connected to the air source port 17. The upper air intake pipeline 29 is provided with an air circuit switch valve 23, a pressure regulating valve 4, and an air circuit three-position five-way valve 24, and is finally connected to the air source port 17.

[0023] The liquid outlet pipe 28 is connected to the internal pipe through a clamp joint 30 and is finally connected to the nozzle 19 .

[0024] The specific settings and functions of this embodiment are described in detail below. The workpiece to be polished is placed on the work platform 18, and then the nozzle 19 is connected to the workpiece. The lower air inlet pipe 26 is ventilated to achieve mixing of the abrasive and the aqueous solution and generate bubbles, and the efficiency of polishing is improved by combining cavitation. The upper air inlet pipe 29 is ventilated to achieve pressurization of the mixed liquid, so that the mixed liquid flows into the funnel-shaped pipe 27, enters the liquid outlet pipe 28, and is sprayed out through the nozzle 19 to achieve inner surface polishing. The mixed liquid flows out through the other end of the workpiece and flows into the left tank body 12. Finally, by ventilating and pressurizing the upper and lower parts of the left tank body, the mixed liquid is repeatedly circulated, and the two-way polishing of the workpiece is achieved.

[0025] The workpiece to be polished is placed on the work platform 18, and then the spray gun 20 is connected to the liquid outlet pipe 28. The lower air inlet pipe 26 is ventilated to achieve mixing of the abrasive and the aqueous solution. The upper air inlet pipe 29 is ventilated to achieve pressurization of the mixed liquid, so that the mixed liquid flows into the funnel-shaped pipe 27, enters the liquid outlet pipe 28, and is sprayed out through the spray gun 20 to achieve outer surface polishing.

[0026] Embodiment 2

[0027] like Figure 1-4 As shown, the sieving device includes a sieving machine 16 and a sieving net 15. After the mixed liquid is used for a period of time, the mixed liquid is discharged through the drainage pipe 25, and the mixed liquid is discharged from the drainage port 13 and put into the sieving net 15. The sieving net 15 is connected to the sieving machine 16. The abrasive particle size can be detected by the vibration of the sieving machine, and the mixed liquid can be recycled.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable cavitation abrasive water jet device, comprising an abrasive water jet mechanism (1) and a powder sifter (16), wherein a left tank body (12) and a right tank body (6) are arranged inside the abrasive water jet mechanism, a left tank body cover (11) is installed on the left tank body (12), and a right tank body cover (8) is installed on the right tank body (6), and the two are connected via a pressure plate buckle (7) on the tank body cover, a lower air intake pipe (26), an upper air intake pipe (29), a liquid discharge pipe (25), and a liquid outlet pipe (28) are arranged inside the tank body, and a funnel-shaped pipe (27) is arranged at the liquid outlet, and a mixed liquid flows into the funnel-shaped pipe (27) through pressurized ventilation, and flows into a nozzle (19) through an internal pipe, and the mixed liquid is sprayed out by the nozzle (19) to polish the inner surface of a workpiece, and the mixed liquid is sprayed out by a spray gun (20) to polish the outer surface.

2. The cavitation abrasive water jet mechanism (1) according to claim 1, characterized in that: The right tank body (6) and the left tank body (12) are provided with a lower air intake pipe (26), an upper air intake pipe (29), a liquid discharge pipe (25), and a liquid outlet pipe (28), wherein the liquid discharge pipe (25) is arranged at the bottom of the tank body, and the liquid outlet pipe (28) is arranged at the upper part of the tank body.

3. The nozzle (19) or spray gun (20) according to claim 1, characterized in that It is arranged on the liquid outlet pipe and can be disassembled according to the usage scenario. The spray gun (20) is placed inside the cavitation abrasive water jet polishing equipment and can be taken out according to the usage scenario. The nozzle (19) is characterized by being arranged on the side of the abrasive water jet mechanism (1) and connected through a clamp interface (30).

4. The nozzle (19) according to claim 3 can be replaced according to different processing parts, and a plurality of nozzles (19) of different models are placed inside the abrasive water jet mechanism (1).

5. The liquid discharge pipe (25), the liquid outlet pipe (28), and the funnel-shaped pipe (27) according to claim 1, characterized in that The pipelines are connected by means of a clamp joint (30), and the pipelines can be replaced according to the frequency of use. The funnel-shaped pipeline (27) is characterized by being funnel-shaped.

6. The lower air intake duct (26) and the upper air intake duct (29) according to claim 1, characterized in that The air source port (17) is arranged on the side of the abrasive water jet mechanism (1).

7. The left tank body (12) and the right tank body (6) according to claim 1, characterized in that It is arranged inside the abrasive water jet mechanism (1), the lower part of the tank body is a spherical bottom, the drainage pipe (25) is arranged at the center of the bottom, and the liquid outlet pipe (28) is arranged on the side of the upper part of the tank body.

8. The abrasive water jet mechanism (1) according to claim 1, characterized in that A Forma wheel (14) is arranged at the bottom thereof, and the Forma wheel (14) ensures the fixation and movement of the mechanism.

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