A non-destructive testing device for precision part processing

Abstract

A non-destructive flaw detection device for precision part processing, comprising a working cabinet. The rear side of the working cabinet is connected to a storage tank. The output end of a cylinder is connected to a push plate located inside the storage tank, and the bottom surface of the push plate is connected to a heating wire. The outside of the storage tank is connected to a replenishing pipe, and an automatic opening component is provided at the top end of the replenishing pipe. The bottom end of the replenishing pipe is connected to an adding box, and the bottom surface of the adding box is connected to a branch air pipe through a positioning pipe, and an electromagnetic opening component is arranged inside the branch air pipe. The bottom surface outside the storage tank is connected to a connecting air pipe, and the connecting air pipe is connected to the branch air pipe. A vertical pipe is installed at the top end of the connecting air pipe, and the upper end of the vertical pipe is communicated with the upper end of the replenishing pipe. A lifting plate is movably connected inside the adding box, and a push shaft is connected to the bottom surface of the lifting plate. In the present invention, gas enters the vertical pipe and the branch air pipe, and the lifting plate is driven by the push shaft to push the oil liquid in the adding box into the storage tank, so as to replenish the oil liquid of the magnetic suspension liquid in the storage tank, enable the magnetic suspension liquid to diffuse and flow normally, ensure that the magnetic suspension liquid can completely cover the surface of the workpiece, and improve the detection range.

Description

Technical Field

[0001] The present invention belongs to the technical field of flaw detection equipment, and specifically relates to a non-destructive flaw detection equipment for precision part processing. Background Art

[0002] Magnetic particle flaw detection utilizes the interaction between the leakage magnetic field at the workpiece defect and the magnetic powder. After magnetization, the magnetic field at the discontinuity will be distorted, forming a leakage magnetic field on the workpiece surface at the partial magnetic flux leakage point, thus forming magnetic traces. Under appropriate lighting conditions, the defect position and shape are revealed. It is a commonly used non-destructive flaw detection method in precision part processing.

[0003] When the existing non-destructive flaw detection equipment is in use, it usually sprays the magnetic suspension on the surface of the workpiece and then supplies power to magnetize, so as to adsorb the magnetic suspension. However, in actual use, not only new workpieces just after processing need to be detected, but also workpieces that have been used for a period of time and need to be repaired. When detecting workpieces that have been used for a period of time, due to long-term exposure to air or lack of maintenance, a large amount of rust will be generated on the surface of the workpiece, making the surface of the workpiece not smooth. The magnetic suspension used in the non-destructive flaw detection device is generally a purchased finished product, and the magnetic powder and oil in the magnetic suspension are configured in a certain proportion. In order to avoid excessive fluidity of the magnetic suspension, it is usually formulated according to the smooth state of the workpiece surface during production. When directly spraying the magnetic suspension on the workpiece that has been used for a period of time, since the surface of the workpiece is not smooth, it may hinder the diffusion and flow of the magnetic suspension, and it may occur that the magnetic suspension cannot completely cover the surface of the workpiece, thus reducing the detection range of the device.

[0004] When the existing non-destructive flaw detection equipment is in use, it usually needs to use magnetic suspension as the developer. The magnetic suspension has fluidity, and the fluidity of the magnetic suspension is related to the viscosity of the oil. When the temperature drops, the oil is affected by the low temperature, resulting in an increase in its viscosity, thus reducing the fluidity of the magnetic suspension. When spraying the magnetic suspension, the sensitivity of the magnetic suspension with low fluidity will decrease during detection in the upward view and vertical position, and it cannot normally achieve the effect of lubricating the workpiece surface. It may occur that after spraying the magnetic suspension, the magnetic suspension accumulates too much at a certain place on the workpiece. During visual inspection, it may cause false alarms of the device, thus reducing the detection accuracy of the device.

[0005] When the existing non-destructive testing equipment is in use, the magnetic suspension liquid is usually conveyed to the nozzle by means of pumping and sprayed out through the nozzle. In this structure, a suction pipe is usually arranged at the suction end of the suction pump and inserted into the bottom of the magnetic suspension liquid storage device. There is usually a gap between the bottom end of the suction pipe and the bottom of the storage device. When the magnetic suspension liquid is sprayed out, the liquid level of the magnetic suspension liquid may just be at the position of the bottom end of the suction pipe. At this time, the magnetic suspension liquid pumped by the suction pump will carry the air in the storage device. When the air enters the nozzle, since there is air in the sprayed magnetic suspension liquid, the air and the magnetic suspension liquid will be sprayed out at the same time, resulting in an excessive diffusion range of the magnetic suspension liquid at the discharging position of the nozzle. It may cause the magnetic suspension liquid to be sprayed outside the workpiece, thus causing pollution to the non-destructive testing device and requiring the operator to clean it, increasing the labor intensity of the operator. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a non-destructive testing equipment for precision parts processing, which ensures that the magnetic suspension liquid can completely cover the surface of the workpiece, thereby improving the detection range; ensures that the magnetic suspension liquid can play a normal role in lubricating the surface of the workpiece, improving the detection accuracy; and avoids air entering the nozzle, eliminating the need for operators to clean.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A non-destructive testing equipment for precision parts processing, including a working cabinet 1. A storage tank 2 and a cylinder 3 are connected to the rear side of the working cabinet 1. The output end of the cylinder 3 is connected to a push plate 4 located inside the storage tank 2. A heating wire 5 is connected to the bottom surface of the push plate 4. Two supplementary pipes 7 communicating with the inner cavity of the storage tank 2 are connected to the outside of the storage tank 2. An automatic opening component 15 is provided at the top end of the supplementary pipe 7. The bottom end of the supplementary pipe 7 is connected to an adding box 8. A positioning pipe 10 is connected to the bottom surface of the adding box 8. The bottom ends of the two positioning pipes 10 are connected to a gas distribution pipe 11. An electromagnetic opening component 12 is provided in the inner cavity of the gas distribution pipe 11.

[0009] A connecting air pipe 6 is connected to the outer side of the bottom surface of the storage tank 2. The connecting air pipe 6 is connected to the gas distribution pipe 11. A vertical pipe 9 is fixedly installed at the top end of the connecting air pipe 6. The upper end of the vertical pipe 9 communicates with the upper end of the supplementary pipe 7.

[0010] A lifting plate 13 is movably connected to the inner cavity of each adding box 8. A push shaft 14 is connected to the bottom surface of the lifting plate 13. The push shaft 14 is movably connected in the positioning pipe 10. Both of the two push shafts 14 are located above the gas distribution pipe 11.

[0011] A connecting hose 16 is fixedly installed at the top of the storage tank 2. The top end of the connecting hose 16 is connected to a nozzle 17. The nozzle 17 is fixedly mounted on the moving frame 18. The bottom end of the moving frame 18 is slidably connected between two magnetic conduction components 19 at the top of the working cabinet 1. The magnetic conduction components 19 are connected to the adjusting component 20.

[0012] The cylinder 3 is located below the storage tank 2. The axis of the output end of the cylinder 3 is on the same straight line as the axis of the storage tank 2. The push plate 4 is movably connected to the inner cavity of the storage tank 2.

[0013] The electromagnetic opening component 12 includes an electromagnetic ring one 121 and an electromagnetic ring two 122. The electromagnetic ring one 121 and the electromagnetic ring two 122 are both fixedly installed in the inner cavity of the sub-air pipe 11. The electromagnetic ring one 121 and the electromagnetic ring two 122 are respectively located on the front and rear sides of the connecting air pipe 6. A closing plate 123 is movably connected to the middle of the electromagnetic ring one 121 and the electromagnetic ring two 122.

[0014] The automatic opening component 15 includes a fixed magnetic ring 151, an electromagnetic ring three 152 and an energized body 156. The fixed magnetic ring 151 and the electromagnetic ring three 152 are both fixedly installed at the top end of the inner cavity of the supplementary pipe 7. The electromagnetic ring three 152 is located inside the fixed magnetic ring 151. A flow plate 153 is movably connected to the middle of the fixed magnetic ring 151 and the electromagnetic ring three 152. A connecting wire 154 is installed at the bottom end of the electromagnetic ring three 152. The bottom end of the connecting wire 154 is connected to an electrical connection terminal 155; the electrical connection terminal 155 cooperates with the energized body 156 movably connected in the inner cavity of the vertical pipe 9. The energized body 156 includes a current-connected plate 1561. The current-connected plate 1561 is movably connected to the inner cavity of the vertical pipe 9. A support shaft 1562 is fixedly installed on the bottom surface of the current-connected plate 1561. The length value of the support shaft 1562 is twice larger than the inner diameter value of the connecting air pipe 6.

[0015] The adjusting component 20 includes a positioning shaft 201. The positioning shaft 201 is installed on the front and rear sides of the top of the working cabinet 1. A roller screw 202 is provided in the middle of the positioning shaft 201. The roller screw 202 is movably connected to the top of the working cabinet 1. A meshing block 203 is meshed on the surface of the roller screw 202. The meshing block 203 is fixedly installed on the working cabinet 1.

[0016] The storage tank 2 and the adding box 8 are provided with a feeding port on the top surface.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, by energizing the heating wire 5, heat is generated by the heating wire 5 to heat the gas located below the push plate 4 in the storage tank 2, enabling the gas to enter the vertical pipe 9 and the manifold 11. As the gas continuously increases in the manifold 11, the lifting plate 13 is driven by the push shaft 14 to push the oil in the additive box 8 into the storage tank 2, thereby replenishing the oil in the magnetic suspension in the storage tank 2. When detecting a workpiece that has been used for a period of time, due to the replenishment of the oil, it dilutes the magnetic suspension. After spraying, the fluidity of the diluted magnetic suspension on the surface of the workpiece increases, enabling the magnetic suspension to spread and flow normally, ensuring that the magnetic suspension can completely cover the surface of the workpiece, and thus improving the detection range.

[0019] 2. In the present invention, heating the magnetic suspension by the heat generated by the heating wire 5 can prevent the viscosity of the magnetic suspension from increasing, so that the magnetic suspension can still maintain its proper fluidity when sprayed out. Therefore, after the magnetic suspension is sprayed on the workpiece, it can ensure that the magnetic suspension can lubricate the surface of the workpiece normally, avoiding the situation where the magnetic suspension accumulates too much in a certain area on the surface of the workpiece, thus avoiding false alarms of the device and improving the detection accuracy.

[0020] 3. In the present invention, when spraying, the rise of the push plate 4 drives the magnetic suspension into the connecting hose 16, making there be no air in the storage tank 2. When the top surface of the push plate 4 contacts the top surface of the inner cavity of the storage tank 2, the spraying of the magnetic suspension is completed, and at this time, the magnetic suspension cannot be transported into the connecting hose 16, thus preventing air from entering the nozzle, avoiding the situation where the diffusion range is too large due to the presence of air when spraying the magnetic suspension, preventing pollution of the device, eliminating the need for operators to clean, and reducing the labor intensity of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention.

[0022] Figure 2 It is a schematic connection diagram of the storage tank of the present invention.

[0023] Figure 3 It is a schematic cross-sectional view of the working cabinet of the present invention.

[0024] Figure 4 It is a schematic connection diagram of the connecting hose of the present invention.

[0025] Figure 5 It is a schematic connection diagram of the heating wire of the present invention.

[0026] Figure 6 It is a schematic cross-sectional view of the storage tank of the present invention.

[0027] Figure 7 It is a schematic cross-sectional view of the replenishing pipe of the present invention.

[0028] Figure 8 is Figure 7 The enlarged schematic view of part A in

[0029] Figure 9 is Figure 7 The enlarged schematic view of part B in

[0030] Figure 10 The sectional view of the positioning tube of the present invention

[0031] Figure 11 is Figure 10 The enlarged schematic view of part C in Specific embodiments

[0032] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1 to 11 shown, a non-destructive testing device for precision part processing includes a working cabinet 1. A storage tank 2 and a cylinder 3 are connected to the rear side of the working cabinet 1. The output end of the cylinder 3 is connected to a push plate 4 located inside the storage tank 2, and a heating wire 5 is connected to the bottom surface of the push plate 4. Two supplement pipes 7 communicating with the inner cavity of the storage tank 2 are connected to the outside of the storage tank 2. An automatic opening assembly 15 is provided at the top end of the supplement pipe 7. An adding box 8 is connected to the bottom end of the supplement pipe 7, and a positioning pipe 10 is connected to the bottom surface of the adding box 8. The bottom ends of the two positioning pipes 10 are connected to a gas distribution pipe 11, and an electromagnetic opening assembly 12 is provided in the inner cavity of the gas distribution pipe 11;

[0034] A connecting air pipe 6 is connected to the outside of the bottom surface of the storage tank 2, and the connecting air pipe 6 is connected to the gas distribution pipe 11; A vertical pipe 9 is fixedly installed at the top end of the connecting air pipe 6, and the upper end of the vertical pipe 9 communicates with the upper end of the supplement pipe 7;

[0035] A lifting plate 13 is movably connected to the inner cavity of each adding box 8. A push shaft 14 is connected to the bottom surface of the lifting plate 13. The push shaft 14 is movably connected in the positioning pipe 10, and both of the two push shafts 14 are located above the gas distribution pipe 11.

[0036] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown in the figure, a connecting hose 16 is fixedly installed at the top of the storage tank 2. The top of the connecting hose 16 is connected to a spray head 17. The spray head 17 is fixedly mounted on the moving frame 18. The bottom end of the moving frame 18 is slidably connected between two magnetic flux components 19 at the top of the working cabinet 1. The magnetic flux component 19 is connected to an adjusting component 20.

[0037] The heating wire 5 is electrified to generate heat. The heat generated by the heating wire 5 is transmitted upward and downward simultaneously. The heat transmitted upward is transmitted to the magnetic suspension liquid above the push plate 4 through the push plate 4, thereby heating the magnetic suspension liquid. The downward heat heats the air below the push plate 4 in the storage tank 2, causing the air to expand and enter the vertical pipe 9 and the branch pipe 11 through the connecting air pipe 6. In the vertical pipe 9, the opening of the replenishing pipe 7 is controlled by the automatic opening component 15. At the same time, the flow of gas in the branch pipe 11 is controlled to flow into the positioning pipe 10, so that the control gas pushes the push shaft 14 upward, thereby pushing the oil liquid into the storage tank 2 through the replenishing pipe 7. When spraying the magnetic suspension liquid, the air cylinder 3 drives the push plate 4 to move upward, pushing the magnetic suspension liquid into the spray head 17 through the connecting hose 16, and then spraying it out through the spray head 17;

[0038] When the weather is relatively cold, heating the magnetic suspension liquid by the heating wire 5 can prevent the viscosity of the magnetic suspension liquid from increasing, so that the magnetic suspension liquid can still maintain its due fluidity when sprayed out. Therefore, after the magnetic suspension liquid is sprayed on the workpiece, it can ensure that the magnetic suspension liquid plays the role of lubricating the surface of the workpiece normally, avoiding the situation that the magnetic suspension liquid accumulates too much at a certain place on the surface of the workpiece, thus avoiding false alarms of the device and improving the detection accuracy. By heating the gas below the push plate 4 in the storage tank 2, the gas enters the vertical pipe 9 and the branch pipe 11. Through the continuous increase of gas in the branch pipe 11, the lifting plate 13 is driven by the push shaft 14 to push the oil liquid in the adding box 8 into the storage tank 2, thereby replenishing the oil liquid for the magnetic suspension liquid in the storage tank 2. When detecting a workpiece that has been used for a period of time, due to the replenishment of the oil liquid, it dilutes the magnetic suspension liquid. After spraying, the fluidity of the diluted magnetic suspension liquid on the surface of the workpiece increases, so that the magnetic suspension liquid can spread and flow normally, ensuring that the magnetic suspension liquid can completely cover the surface of the workpiece, thereby increasing the detection range of the device. During spraying, the push plate 4 continuously moves upward, and there is no air in the storage tank 2. When the top surface of the push plate 4 contacts the top surface of the inner cavity of the storage tank 2, the spraying of the magnetic suspension liquid is completed, and at this time, the magnetic suspension liquid cannot be conveyed into the connecting hose 16, thus avoiding air entering the spray head 17 and avoiding the situation that the diffusion range is too large due to the presence of air when spraying the magnetic suspension liquid, avoiding pollution to the device and eliminating the need for operators to clean, reducing the labor intensity of the operators.

[0039] Before spraying the magnetic suspension liquid, first, the cylinder 3 drives the push plate 4 to move downward, and then the step of spraying the magnetic suspension liquid is carried out. When spraying the magnetic suspension liquid, the moving frame 18 is moved. Since the moving frame 18 is movably connected to the top of the working cabinet 1, it can drive the nozzle 17 to move above the workpiece, so that the magnetic suspension liquid can be evenly sprayed on the surface of the workpiece;

[0040] When spraying the magnetic suspension liquid, first, the cylinder 3 drives the push plate 4 to move downward, so that the pressure above the push plate 4 in the storage tank 2 decreases, which generates a turbulent flow for the magnetic suspension liquid, making the magnetic suspension liquid mix evenly, avoiding the magnetic powder in the magnetic suspension liquid from concentrating together, and thus improving the detection accuracy of the device.

[0041] The workpiece is clamped between two magnetizing assemblies 19, and then the workpiece is magnetized through the magnetizing assemblies 19, so that the surface of the workpiece has magnetism. When the magnetic suspension liquid is sprayed on the workpiece, the magnetic powder will concentrate at the defect, thus indicating the defect of the workpiece.

[0042] The cylinder 3 is located below the storage tank 2, and the axis of the output end of the cylinder 3 is on the same straight line as the axis of the storage tank 2. The push plate 4 is movably connected to the inner cavity of the storage tank 2; this ensures the stability of the movement of the push plate 4, avoiding the push plate 4 from skewing during movement, and thus improving the service life.

[0043] The gas entering the positioning tube 10 through the sub-air pipe 11 can push the push shaft 14 upward as the volume of the gas continuously increases, so that the lifting plate 13 drives the magnetic powder or oil into the replenishing tube 7; the gas is generated by heating through the heating wire 5 and is pushed into the inner cavity of the positioning tube 10 through the connecting air pipe 6, driving the lifting plate 13 to move upward in the inner cavity of the adding box 8, which can realize the automatic replenishment of magnetic powder or oil and improve the degree of automation.

[0044] As Figure 3 shown, the adjusting assembly 20 includes a positioning shaft 201. The positioning shaft 201 is installed on the front and rear sides of the top of the working cabinet 1. A roller screw 202 is provided in the middle of the positioning shaft 201. The roller screw 202 is movably connected to the top of the working cabinet 1. A meshing block 203 is engaged with the surface of the roller screw 202, and the meshing block 203 is fixedly installed on the working cabinet 1.

[0045] Rotate the roller screw 202, and drive the magnetizing assembly 19 at the right end to move through the engagement between the roller screw 202 and the meshing block 203, so as to adjust the distance between the two magnetizing assemblies 19; by making the interval between the two magnetizing assemblies 19 adjustable, the device can clamp and fix workpieces of different sizes, thus increasing the scope of use.

[0046] By separately placing magnetic powder and oil in two addition boxes 8 and connecting them to the storage tank 2 through the replenishment pipe 7, it is possible to replenish magnetic powder or oil to the magnetic suspension in the storage tank 2, enabling the magnetic suspension to reach the optimal operating condition.

[0047] As Figure 7 、 Figure 8 、 Figure 9 shown, the automatic opening component 15 includes a fixed magnetic ring 151, an electromagnetic ring three 152, and an energized body 156. The fixed magnetic ring 151 and the electromagnetic ring three 152 are both fixedly installed at the top of the inner cavity of the replenishment pipe 7. The electromagnetic ring three 152 is located inside the fixed magnetic ring 151. A flow plate 153 is movably connected in the middle of the fixed magnetic ring 151 and the electromagnetic ring three 152. A connecting wire 154 is installed at the bottom end of the electromagnetic ring three 152, and the bottom end of the connecting wire 154 is connected to an electrical connection terminal 155; the electrical connection terminal 155 cooperates with the energized body 156 movably connected in the inner cavity of the vertical pipe 9. The energized body 156 includes a current - connecting plate 1561, and the current - connecting plate 1561 is movably connected in the inner cavity of the vertical pipe 9. A support shaft 1562 is fixedly installed on the bottom surface of the current - connecting plate 1561, and the length value of the support shaft 1562 is two times larger than the inner diameter value of the connecting air pipe 6.

[0048] The air below the push plate 4 is heated and expands, thus entering the connecting air pipe 6, and then entering the inner cavities of the vertical pipe 9 and the branch air pipe 11 along with the connecting air pipe 6. The air entering the inner cavity of the vertical pipe 9 pushes the current - connecting plate 1561 upward, causing the current - connecting plate 1561 to move upward along the vertical pipe 9. When the top surface of the current - connecting plate 1561 contacts the bottom surface of the electrical connection terminal 155, the electrical connection terminal 155 energizes the electromagnetic ring three 152 through the connecting wire 154, causing the electromagnetic ring three 152 to generate magnetism. After the electromagnetic ring three 152 generates magnetism, it adsorbs the flow plate 153 to the left and separates it from the fixed magnetic ring 151, thereby opening the fixed magnetic ring 151. At this time, the holes on the surface of the flow plate 153 are located in the circular hole in the middle of the electromagnetic ring three 152, thus opening the tops of the two replenishment pipes 7; by the left - shift of the flow plate 153, the holes on the flow plate 153 are aligned with the circular hole in the middle of the electromagnetic ring three 152, thereby opening the tops of the replenishment pipes 7. When the flow plate 153 is in contact with the fixed magnetic ring 151, the holes on the flow plate 153 are aligned with the side wall of the fixed magnetic ring 151, thereby closing the top of the replenishment pipe 7 to prevent the magnetic suspension from entering the replenishment pipe 7. By setting the support shaft 1562, when the current - connecting plate 1561 and the support shaft 1562 move downward, the bottom end of the support shaft 1562 contacts the bottom end of the inner cavity of the connecting air pipe 6, thereby supporting the current - connecting plate 1561 and ensuring that the current - connecting plate 1561 is always located in the inner cavity of the vertical pipe 9.

[0049] As Figure 10 、 Figure 11As shown, the electromagnetic opening assembly 12 includes an electromagnetic ring 121 and an electromagnetic ring 122. Both the electromagnetic ring 121 and the electromagnetic ring 122 are fixedly installed in the inner cavity of the branch air pipe 11. The electromagnetic ring 121 and the electromagnetic ring 122 are respectively located on the front and rear sides of the connecting air pipe 6. A closing plate 123 is movably connected to the middle parts of the electromagnetic ring 121 and the electromagnetic ring 122.

[0050] When the electromagnetic ring 121 is electrified and the electromagnetic ring 122 is de - electrified, at this time, the electromagnetic ring 121 generates magnetism to attract the closing plate 123, so that the closing plate 123 closes the front end of the branch air pipe 11. At this time, the gas entering the branch air pipe 11 completely enters the rear end of the branch air pipe 11 and enters the inner cavity of the rear positioning pipe 10 through the round hole in the middle of the electromagnetic ring 122, thereby pushing the push shaft 14 upward; One end of the electromagnetic ring 121 is close to the end of the adding box 8 for adding magnetic powder, and one end of the electromagnetic ring 122 is close to the end of the adding box 8 for adding oil. By electrifying one of the electromagnetic ring 121 or the electromagnetic ring 122, the opening and closing of the front and rear ends of the branch air pipe 11 can be controlled to realize the switching of the replenishment state.

[0051] The storage tank 2 and the adding box 8 are provided with feeding ports on the top surface.

[0052] The working principle of the present invention:

[0053] Rotate the roller screw 202, drive the magnetic - conducting component 19 at the right end to move through the meshing of the roller screw 202 and the meshing block 203, thereby adjusting the distance between the two magnetic - conducting components 19. Then clamp the workpiece between the two magnetic - conducting components 19, and then magnetize the workpiece through the magnetic - conducting components 19;

[0054] During use, magnetic powder and oil are respectively added to the two adding boxes 8, and magnetic suspension liquid is added to the inner cavity of the storage tank 2 from the adding pipe arranged above the storage tank 2. Then, the heating wire 5 is electrified, so that the heating wire 5 heats the push plate 4 and the air below the push plate 4. After heating, the air below the push plate 4 expands and enters the connecting air pipe 6, and then enters the inner cavities of the vertical pipe 9 and the branch air pipe 11 along the connecting air pipe 6; The air entering the inner cavity of the vertical pipe 9 pushes the electricity - connecting plate 1561 upward, so that the electricity - connecting plate 1561 moves upward along the vertical pipe 9. When the top surface of the electricity - connecting plate 1561 contacts the bottom surface of the electricity - connecting terminal 155, the electricity - connecting terminal 155 electrifies the electromagnetic ring 152 through the connecting wire 154, so that the electromagnetic ring 152 generates magnetism. After the electromagnetic ring 152 generates magnetism, it adsorbs the flow - through plate 153 to the left and separates it from the fixed magnet ring 151, thereby opening the fixed magnet ring 151. At this time, the holes on the surface of the flow - through plate 153 are located in the round hole in the middle of the electromagnetic ring 152, thereby opening the tops of the two replenishing pipes 7;

[0055] Then, according to the condition of the workpiece, one of the electromagnetic ring 121 and the electromagnetic ring 122 is energized. When it is necessary to detect the workpiece after being used for a period of time, the electromagnetic ring 121 is energized and the electromagnetic ring 122 is de-energized. At this time, the electromagnetic ring 121 generates magnetism to attract the closing plate 123, so that the closing plate 123 closes the front end of the branch air pipe 11. At this time, the gas entering the branch air pipe 11 completely enters the rear end of the branch air pipe 11 and enters the inner cavity of the rear positioning pipe 10 through the round hole in the middle of the electromagnetic ring 122, thereby pushing the push shaft 14 upward, causing the lifting plate 13 to drive the oil liquid in the adding box 8 to move upward, and then being pushed into the inner cavity of the storage tank 2 through the replenishing pipe 7, so as to replenish the oil liquid into the magnetic suspension liquid in the storage tank 2, thereby improving the fluidity of the magnetic suspension liquid;

[0056] Then the air cylinder 3 drives the push plate 4 to move downward, so that the pressure above the push plate 4 in the storage tank 2 decreases, thereby generating a turbulent flow in the magnetic suspension liquid to make the magnetic suspension liquid mix evenly. Then the air cylinder 3 drives the push plate 4 to move upward, so that the push plate 4 pushes the magnetic suspension liquid into the inner cavity of the connecting hose 16, and then enters the spray head 17 through the connecting hose 16, and is sprayed downward from the bottom end to the surface of the workpiece through the spray head 17. And when spraying the magnetic suspension liquid, move the moving frame 18, so that the spray head 17 can move above the workpiece, so that the magnetic suspension liquid can be evenly sprayed on the surface of the workpiece;

[0057] During spraying, the push plate 4 continuously moves upward, so that there is no air in the storage tank 2. When the top surface of the push plate 4 contacts the top surface of the inner cavity of the storage tank 2, the spraying of the magnetic suspension liquid is completed, and at this time, the magnetic suspension liquid cannot be transported into the connecting hose 16. And while the push plate 4 moves upward, the heating wire 5 is powered off. At this time, the temperature of the air below the push plate 4 decreases and the pressure decreases. The air in the connecting air pipe 6, the vertical pipe 9 and the branch air pipe 11 is pushed back into the inner cavity of the storage tank 2 under the gravity of the push shaft 14 and the energized body 156, so that the electrical connection terminal 155 is separated from the electrical connection plate 1561, and the electromagnetic ring 152 is de-energized. After de-energization, the electromagnetic ring 152 loses magnetism. At this time, the flow-through plate 153 moves to the right under the magnetic force drive of the fixed magnetic ring 151 and fits with the fixed magnetic ring 151 to close the hole on the flow-through plate 153, that is, to close the top end of the replenishing pipe 7;

[0058] When the magnetic suspension liquid is not sprayed out, the heating wire 5 is started again to heat the air below the push plate 4, and the electromagnetic ring 122 is turned on and off, and the electromagnetic ring 121 is de-energized. At this time, the rear end of the branch air pipe 11 is closed, so that when air enters the branch air pipe 11, it enters the front positioning pipe 10 through the branch air pipe 11, so that the magnetic powder in the front adding box 8 is pushed into the storage tank 2 through the replenishing pipe 7 to replenish the diluted magnetic suspension liquid with magnetic powder, so that the magnetic powder reaches the standard ratio;

[0059] While the heating wire 5 heats the air, it also heats the push plate 4. The push plate 4 transfers the heat to the magnetic suspension liquid, thereby heating the magnetic suspension liquid and increasing its fluidity.

[0060] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 non-destructive testing device for precision part processing, comprising a working cabinet (1), characterized in that: The rear side of the working cabinet (1) is connected with a storage tank (2) and a cylinder (3). The output end of the cylinder (3) is connected with a push plate (4) located inside the storage tank (2). The bottom surface of the push plate (4) is connected with a heating wire (5). Two supplementary pipes (7) communicating with the inner cavity of the storage tank (2) are connected to the outside of the storage tank (2). An automatic opening component (15) is provided at the top end of the supplementary pipe (7). The bottom end of the supplementary pipe (7) is connected with an adding box (8). The bottom surface of the adding box (8) is connected with a positioning pipe (10). The bottom ends of the two positioning pipes (10) are connected with a gas distribution pipe (11). An electromagnetic opening component (12) is arranged in the inner cavity of the gas distribution pipe (11). The outside of the bottom surface of the storage tank (2) is connected with a connecting air pipe (6). The connecting air pipe (6) is connected with the gas distribution pipe (11). A vertical pipe (9) is fixedly installed at the top end of the connecting air pipe (6). The upper end of the vertical pipe (9) is communicated with the upper end of the supplementary pipe (7). A lifting plate (13) is movably connected in the inner cavity of each adding box (8). The bottom surface of the lifting plate (13) is connected with a push shaft (14). The push shaft (14) is movably connected in the positioning pipe (10). Both of the two push shafts (14) are located above the gas distribution pipe (11). A connecting hose (16) is fixedly installed at the top end of the storage tank (2). The top end of the connecting hose (16) is connected with a spray head (17). The spray head (17) is fixed on a moving frame (18). The bottom end of the moving frame (18) is slidably connected between a magnetic conduction component (19) and an adjusting component (20) at the top end of the working cabinet (1).

2. The device according to claim 1, characterized in that: The cylinder (3) is located below the storage tank (2). The axis of the output end of the cylinder (3) is on the same straight line as the axis of the storage tank (2). The push plate (4) is movably connected in the inner cavity of the storage tank (2).

3. The device according to claim 1, characterized in that: The electromagnetic opening component (12) includes an electromagnetic ring one (121) and an electromagnetic ring two (122). Both the electromagnetic ring one (121) and the electromagnetic ring two (122) are fixedly installed in the inner cavity of the gas distribution pipe (11). The electromagnetic ring one (121) and the electromagnetic ring two (122) are respectively located on the front and rear sides of the connecting air pipe (6). A closing plate (123) is movably connected in the middle of the electromagnetic ring one (121) and the electromagnetic ring two (122).

4. The device according to claim 1, characterized in that: The automatic opening component (15) includes a fixed magnetic ring (151), an electromagnetic ring III (152) and an energized body (156). The fixed magnetic ring (151) and the electromagnetic ring III (152) are both fixedly installed at the top end of the inner cavity of the supplementary pipe (7). The electromagnetic ring III (152) is located inside the fixed magnetic ring (151). A flow plate (153) is movably connected to the middle parts of the fixed magnetic ring (151) and the electromagnetic ring III (152). A connecting wire (154) is installed at the bottom end of the electromagnetic ring III (152), and the bottom end of the connecting wire (154) is connected to an electrical connection terminal (155); the electrical connection terminal (155) cooperates with the energized body (156) movably connected in the inner cavity of the vertical pipe (9). The energized body (156) includes a current connecting plate (1561). The current connecting plate (1561) is movably connected in the inner cavity of the vertical pipe (9). A support shaft (1562) is fixedly installed on the bottom surface of the current connecting plate (1561). The length value of the support shaft (1562) is twice larger than the inner diameter value of the connecting air pipe (6).

5. The device according to claim 1, characterized in that: The adjusting component (20) includes a positioning shaft (201). The positioning shaft (201) is installed on the front and rear sides of the top end of the working cabinet (1). A ball screw (202) is provided in the middle of the positioning shaft (201). The ball screw (202) is movably connected to the top end of the working cabinet (1). A meshing block (203) is engaged with the surface of the ball screw (202).

6. The device according to claim 1, characterized in that: The storage tank (2) and the addition box (8) are provided with a feeding port on the top surface.

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