Detection device and detection system of electromagnetic pilot operated valve

Abstract

The embodiment of the invention provides a detection device and a detection system of an electromagnetic pilot valve, relates to the technical field of detection of electromagnetic pilot valves, and is used for improving the detection efficiency of the electromagnetic pilot valve. The detection device comprises a fixing frame assembly, a detection platform, a detection cover plate assembly, a grouped tray, a first air cylinder, a second air cylinder, a third air cylinder, a fourth air cylinder, a fifth air cylinder, a first clamping block, a second clamping block, a third clamping block, a fourth clamping block, a first fixing block, a second fixing block and a plurality of detection units, the detection cover plate assembly is arranged on the fixing frame assembly and located above the detection platform, the grouped trays are arranged on the detection platform, the detection unit is arranged on the detection cover plate assembly, and the fifth air cylinder is arranged below the detection cover plate assembly.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic pilot valve detection, and in particular to an electromagnetic pilot valve detection device and a detection system. Background Art

[0002] The insulation resistance and magnetic field strength of the intrinsically safe electromagnetic pilot valve for mining are crucial testing parameters in the production and delivery process. The qualification of these two parameters is directly related to the quality and safety of the product, thus affecting the overall qualification rate and market competitiveness. At present, the testing methods used in traditional technologies are as follows:

[0003] Insulation resistance test: Each pilot valve is tested one by one by manually operating a withstand voltage tester. Although this process can ensure the insulation performance of each product, it usually leads to low testing efficiency due to its manual operation characteristics.

[0004] Magnetic energy detection: Use a handheld Gauss meter to detect magnetic flux. Although this method can provide relatively accurate magnetic field strength readings, it also requires manual operation, so it is also insufficient in detection efficiency.

[0005] However, the shortcomings of the current approach are obvious:

[0006] Low testing efficiency: Both testing steps are performed manually one by one, which not only wastes time, but also increases the production cycle and affects the overall production efficiency.

[0007] The operation process is complicated: Since each inspection task needs to be completed manually, the steps are complicated and numerous. This cumbersome operation process undoubtedly increases the probability of error and may lead to the outflow of unqualified products.

[0008] High requirements for operators: As an operator, you need to have corresponding professional knowledge and skills. Especially when conducting a withstand voltage test, the test voltage must reach 500V, which places higher requirements on the professionalism and responsibility of the operator.

[0009] High labor costs: In today's economic environment, the cost of human resources continues to rise. The model that relies on manual inspection not only increases the burden on business operations, but also reduces overall cost-effectiveness.

[0010] Therefore, how to improve the detection efficiency of the electromagnetic pilot valve and reduce the detection cost is an urgent problem to be solved. Summary of the invention

[0011] In order to solve the above problems, the present application provides a detection device and a detection system for an electromagnetic pilot valve.

[0012] In a first aspect, a detection device for an electromagnetic pilot valve is provided, comprising: a fixing frame assembly, a detection platform, a detection cover assembly, a grouping tray, a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder, a first clamping block, a second clamping block, a third clamping block, a fourth clamping block, a first fixed block, a second fixed block and a plurality of detection units, wherein the detection platform is fixed on the fixing frame assembly, the detection cover assembly is arranged on the fixing frame assembly, the detection cover assembly is located above the detection platform, the grouping tray is arranged on the detection platform, the detection unit is arranged on the detection cover assembly, and the fifth cylinder is arranged below the detection cover assembly; wherein,

[0013] The grouping tray is used to place multiple solenoid pilot valves to be tested;

[0014] The detection platform has a first side, a second side, a third side and a fourth side, the first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other;

[0015] The first cylinder and the first clamping block are located at the first side, and the first cylinder is connected to the first clamping block and is used to push the first clamping block to fix the grouped pallets;

[0016] The second cylinder and the second clamping block are located on the third side, and the second cylinder is connected to the second clamping block and is used to push the second clamping block to fix the grouped pallets;

[0017] The third cylinder, the third clamping block, the fourth cylinder and the fourth clamping block are located on the second side, the first fixed block and the second fixed block are fixedly arranged on the fourth side, the third cylinder is connected to the third clamping block, the fourth cylinder is connected to the fourth clamping block, the third clamping block and the fourth clamping block cooperate with the first fixed block and the second fixed block to clamp the grouped pallets.

[0018] Furthermore, the detection device also includes: a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate, the first fixing plate and the second fixing plate are relatively arranged on the first side to cooperate in fixing the first cylinder, and the third fixing plate and the fourth fixing plate are relatively arranged on the third side to cooperate in fixing the second cylinder.

[0019] Further, the detection unit includes: an insulation resistance detection pin, a first magnetic detection head and a second magnetic detection head, and the insulation resistance detection pin, the first magnetic detection head and the second magnetic detection head are arranged below the detection cover assembly;

[0020] The insulation resistance detection probe is used to detect the insulation resistance of the electromagnetic pilot valve;

[0021] The first magnetic detection head and the second magnetic detection head are used to detect the magnetic field strength of the electromagnetic pilot valve.

[0022] Further, the first cylinder and the second cylinder are connected in parallel and operate synchronously, and the third cylinder and the fourth cylinder are connected in parallel and operate synchronously.

[0023] Furthermore, the detection device also includes: an intake main pipe, an intake branch pipe, an oil-water separator, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a third electromagnetic reversing valve, a return pipe, a first pneumatic joint, a second pneumatic joint and an air manifold, the oil-water separator is connected to the air manifold through the intake main pipe, the air manifold is connected to the first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve, the first electromagnetic reversing valve is connected to the fifth cylinder through the intake branch pipe and the return pipe, the second electromagnetic reversing valve is connected to the first cylinder and the second cylinder through the first pneumatic joint, the intake branch pipe and the return pipe, the third electromagnetic reversing valve is connected to the third cylinder and the fourth cylinder through the second pneumatic joint, the intake branch pipe and the return pipe; wherein,

[0024] The air inlet main pipe is used to input the air source gas;

[0025] The oil-water separator is used to filter the source gas;

[0026] The gas manifold is used for centralized gas supply and centralized exhaust to the first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve;

[0027] The first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve are used to switch the air intake and the air return;

[0028] The first pneumatic connector and the second pneumatic connector are used to divide the air source gas in the air collection column into two paths, which enter the two air inlet branches respectively, and merge the air source gas in the two air return pipes into one path and then return to the air collection column.

[0029] Furthermore, a speed regulating valve joint is provided on the first cylinder, the second cylinder, the third cylinder, the fourth cylinder and the fifth cylinder, and the speed regulating valve joint is used to adjust the flow rate of the gas source gas.

[0030] Furthermore, the detection platform is provided with positioning beads, connecting rods, micro switch fixing plates, and micro switches. The micro switch fixing plates are fixed under the detection platform, the micro switches are fixed on the micro switch fixing plates, and the positioning beads are connected to the micro switches through connecting rods. When the positioning beads are pressed into the detection platform by the grouped trays, the micro switches are opened to start the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, and the fifth cylinder.

[0031] Furthermore, a plurality of placement areas and identification areas for placing electromagnetic pilot valves are provided on the grouped tray.

[0032] Further, a first guide block is provided on the second side of the detection platform, and a second guide block is provided on the third side of the detection platform;

[0033] The first guide block cooperates with the second guide block to constrain the grouped pallets.

[0034] In a second aspect, a detection system for an electromagnetic pilot valve is provided, comprising: a desktop, a frame body, a switch and a detection device as described above, wherein the desktop is fixed on the frame body, and the detection device is arranged on the desktop; wherein,

[0035] The switch includes: emergency stop button, start button and stop button.

[0036] The technical solution provided by the present application can simultaneously detect multiple electromagnetic pilot valves to be detected in a grouped tray, thereby improving the detection efficiency. Moreover, through the detection device, automated detection can be achieved, and only the electromagnetic pilot valves to be detected need to be manually placed in the grouped tray, and then the grouped tray is placed in the detection platform to start the detection, which reduces the complexity of manual operation and makes the detection process more concise. In addition, the detection device reduces the professional skill requirements of the operator, so that non-professionals can also perform detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate some embodiments of this specification or technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 A schematic diagram of the structure of a detection device for an electromagnetic pilot valve provided in the present application;

[0039] Figure 2 A schematic structural diagram of another electromagnetic pilot valve detection device provided in the present application;

[0040] Figure 3 A schematic structural diagram of another electromagnetic pilot valve detection device provided in the present application;

[0041] Figure 4 A schematic diagram of the structure of an electromagnetic pilot valve provided in this application;

[0042] Figure 5 A schematic diagram of the structure of a grouped pallet provided in this application;

[0043] Figure 6 A schematic structural diagram of a detection system for an electromagnetic pilot valve provided in the present application. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in some embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on some embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of this document and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of this document described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment. It should be noted that the acquisition, storage, use, processing, etc. of data in the technical solution of this application comply with the relevant provisions of relevant laws and regulations.

[0046] like Figure 1 The figure is a schematic diagram of the structure of a detection device for an electromagnetic pilot valve provided in an embodiment of the present application. The detection device includes: a fixed frame assembly 1, a detection platform 2, a detection cover assembly 3, a grouping tray (not shown in the figure), a first cylinder 4, a second cylinder 5, a third cylinder 6, a fourth cylinder 7, a fifth cylinder 8, a first clamping block 9, a second clamping block 10, a third clamping block 11, a fourth clamping block 12, a first fixed block 13, a second fixed block 14 and a plurality of detection units 15, the detection platform 2 is fixed on the fixed frame assembly 1, the detection cover assembly 3 is arranged on the fixed frame assembly 1, the detection cover assembly 3 is located above the detection platform 2, the grouping tray is arranged on the detection platform 2, the detection unit 15 is arranged on the detection cover assembly 3, and the fifth cylinder 8 is arranged below the detection cover assembly 3; wherein,

[0047] The grouping tray is used to place multiple solenoid pilot valves to be tested;

[0048] The detection platform 2 has a first side, a second side, a third side and a fourth side, the first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other;

[0049] The first cylinder 4 and the first clamping block 9 are located at the first side, and the first cylinder 4 is connected to the first clamping block 9 and is used to push the first clamping block 9 to fix the grouped pallets;

[0050] The second cylinder 5 and the second clamping block 10 are located on the third side, and the second cylinder 5 is connected to the second clamping block 10 and is used to push the second clamping block 10 to fix the grouped pallets;

[0051] The third cylinder 6, the third clamping block 11, the fourth cylinder 7 and the fourth clamping block 12 are located on the second side, the first fixed block 13 and the second fixed block 14 are fixedly arranged on the fourth side, the third cylinder 6 is connected to the third clamping block 11, the fourth cylinder 7 is connected to the fourth clamping block 12, the third clamping block 11 and the fourth clamping block 12 cooperate with the first fixed block 13 and the second fixed block 14 to clamp the grouped pallets.

[0052] Exemplarily, the fixing frame assembly 1 is also called the cover fixing frame assembly, the first clamping block 9 and the second clamping block 10 are located in the X-axis direction of the detection platform 2, also called the X-axis clamping block, and the third clamping block 11 and the fourth clamping block 12 are located in the Y-axis direction of the detection platform 2, also called the Y-axis clamping block. Similarly, the first fixing block 13 and the second fixing block 14 are also called the Y-axis fixed positioning block. It should be noted that the present application does not limit the names of the various components.

[0053] The technical solution provided by the present application can simultaneously detect multiple electromagnetic pilot valves to be detected in a grouped tray, thereby improving the detection efficiency. Moreover, through the detection device, automated detection can be achieved, and only the electromagnetic pilot valves to be detected need to be manually placed in the grouped tray, and then the grouped tray is placed in the detection platform to start the detection, which reduces the complexity of manual operation and makes the detection process more concise. In addition, the detection device reduces the professional skill requirements of the operator, so that non-professionals can also perform detection work.

[0054] In some embodiments, Figure 1 As shown, the detection device also includes: a first fixing plate 16, a second fixing plate ( Figure 1 Not shown), the third fixing plate 17 and the fourth fixing plate ( Figure 1 (not shown in the figure), the first fixing plate 16 and the second fixing plate are arranged on the first side opposite to each other, and cooperate to fix the first cylinder 4, and the third fixing plate 17 and the fourth fixing plate are arranged on the third side opposite to each other, and cooperate to fix the second cylinder 5.

[0055] Specifically, the first fixing plate 16, the second fixing plate, the third fixing plate 17 and the fourth fixing plate are placed vertically, and the upper edges form a certain angle with the horizontal plane, wherein the first fixing plate 16 and the second fixing plate are arranged on the first side relative to each other, and the first fixing plate 16 and the second fixing plate are spaced a certain distance apart, and the first cylinder 4 is fixedly arranged on the upper edges of the first fixing plate 16 and the second fixing plate. The third fixing plate 17 and the fourth fixing plate are arranged on the third side relative to each other, and the third fixing plate 17 and the fourth fixing plate are spaced a certain distance apart, and the second cylinder 5 is fixedly arranged on the upper edges of the third fixing plate 17 and the fourth fixing plate.

[0056] For example, Figure 2 , which is a schematic diagram of the structure of another electromagnetic pilot valve detection device provided in an embodiment of the present application. The first fixed plate 16, the second fixed plate ( Figure 2 The first fixing plate 16 is fixed to the first side of the detection platform 2, and cooperates with the first cylinder 4 to fix the first clamping block 9. When the first cylinder 4 pushes the first clamping block 9, it can be pushed upward along the track formed by the first fixing plate 16 and the second fixing plate. Similarly, the third fixing plate 17 and the fourth fixing plate ( Figure 2 The third fixing plate 17 (not shown) is fixedly arranged on the third side of the detection platform 2, cooperates with the second cylinder 5, and enables the second clamping block 10 to be pushed obliquely upward along the track formed by the third fixing plate 17 and the fourth fixing plate when pushed by the second cylinder 5. Among them, the fixing plate is also called a cylinder fixing plate, such as the first fixing plate 16 can also be called a first cylinder fixing plate, and the second fixing plate, the third fixing plate 17 and the fourth fixing plate are similar.

[0057] In this way, multiple fixing plates are provided to ensure that the cylinder will not be displaced or tilted during operation, thereby ensuring the accuracy and reliability of the cylinder pushing the clamping block. In addition, by providing multiple fixing plates, the movement trajectory of the cylinder and the clamping block is precisely defined, so that the clamping block can accurately move obliquely upward along a predetermined path, ensuring the positioning accuracy of the grouped pallets.

[0058] In some embodiments, Figure 3 As shown, the detection unit 15 includes: an insulation resistance detection pin 1501, a first magnetic detection head 1502 and a second magnetic detection head (not shown in the figure), and the insulation resistance detection pin 1501, the first magnetic detection head 1502 and the second magnetic detection head are arranged below the detection cover assembly 3;

[0059] The insulation resistance detection probe 1501 is used to detect the insulation resistance of the electromagnetic pilot valve;

[0060] The first magnetic detection head 1502 and the second magnetic detection head are used to detect the magnetic field strength of the electromagnetic pilot valve.

[0061] It should be noted that the number of detection units 15 in the electromagnetic pilot valve detection device is consistent with the maximum number of electromagnetic pilot valves that can be placed in the group tray. Figure 2 As shown, the detection device includes 6 detection units 15, and the number of electromagnetic pilot valves that can be placed in the group tray is 6. Figure 2 In the embodiment, the first magnetic detection head 1502 and the second magnetic detection head are arranged in front of the insulation resistance detection contact pin 1501.

[0062] In some embodiments, Figure 3 As shown, the first magnetic detection head 1502 and the second magnetic detection head ( Figure 2 The insulation resistance detection contact pin 1501 is fixed to the detection cover assembly 3 through the first connection component 1503. Similarly, the insulation resistance detection contact pin 1501 is fixed to the detection cover assembly 3 through the second connection component 1504.

[0063] It can be understood that the detection unit 15 is used to detect the electromagnetic pilot valve to be detected, and the first magnetic detection head 1502, the second magnetic detection head and the insulation resistance detection needle 1501 in the detection unit 15 correspond to the points to be detected of the electromagnetic pilot valve. Figure 4 As shown, it is a schematic diagram of the structure of an electromagnetic pilot valve provided in an embodiment of the present application. The top of the electromagnetic pilot valve includes a first magnetic force detection point 401, a second magnetic force detection point 402 and an insulation resistance detection point 403. During the detection process, the first magnetic force detection head 1502 in the detection unit 15 is in contact with the first magnetic force detection point 401 of the electromagnetic pilot valve, and the second magnetic force detection head is in contact with the second magnetic force detection point 402 of the electromagnetic pilot valve to detect the magnetic field strength of the electromagnetic pilot valve. Correspondingly, the insulation resistance detection contact pin 1501 in the detection unit 15 is in contact with the insulation resistance detection point 403 of the electromagnetic pilot valve to detect the insulation resistance of the electromagnetic pilot valve. In addition, each electromagnetic pilot valve has a unique identification code for identifying the electromagnetic pilot valve. Exemplarily, the electromagnetic pilot valve can be a mining intrinsically safe electromagnetic pilot valve, or it can also be other types of electromagnetic pilot valves, which are not limited by the present application.

[0064] In some embodiments, Figure 3 As shown, a circuit board 301 and components 302 may be provided on the detection cover assembly 3, wherein the components 302 are provided on the circuit board 301. Specifically, a plurality of components 302 are provided on the circuit board 301 to cooperate with the detection unit 15 to complete the detection of the electromagnetic pilot valve to be detected.

[0065] For example, Figure 3As shown, the second hinge 102 is fixed to the fixing frame assembly 1, the detection cover assembly 3 is arranged on the fixing frame assembly 1 through the second hinge 102, the movable end (retractable part) of the fifth cylinder 8 is arranged below the detection cover assembly 3 through the third hinge 103, and the fixed end (non-retractable part) of the fifth cylinder 8 is arranged on the fixing frame assembly 1 through the first hinge 101. When the fifth cylinder 8 is started, the piston of the fifth cylinder 8 is extended and retracted to provide the detection cover assembly 3 with power to rotate around the second hinge 102, so as to adjust the angle between the detection cover assembly 3 and the fixing frame assembly 1, so that the first magnetic detection head 1502 and the second magnetic detection head ( Figure 3 The insulation resistance detection contact pin 1501 is in contact with the electromagnetic pilot valve to detect the electromagnetic pilot valve.

[0066] In some embodiments, the first cylinder 4, the second cylinder 5, the third cylinder 6 and the fourth cylinder 7 all include movable baffles. Figure 1 As shown, taking the second cylinder 5 as an example, the second clamping block 10 is fixed on the movable baffle 501 of the second cylinder 5. When the second cylinder 5 is started, the piston of the second cylinder 5 is extended and retracted to provide power for the second clamping block 10, so that the second clamping block 10 pushes the grouped pallets.

[0067] In some embodiments, the first cylinder 4 and the second cylinder 5 are synchronously operated in parallel, and the third cylinder 6 and the fourth cylinder 7 are synchronously operated in parallel.

[0068] It is understandable that if Figure 2 As shown, the first cylinder 4 and the second cylinder 5 operate synchronously in parallel. The first cylinder 4 pushes the first clamping block 9 in an oblique upward direction so that the first clamping block 9 pushes the grouped pallet and provides a leftward power to the grouped pallet. The second cylinder 5 pushes the second clamping block 10 in an oblique upward direction so that the second clamping block 10 pushes the grouped pallet and provides a rightward power to the grouped pallet. The synchronous operation of the first cylinder 4 and the second cylinder 5 in parallel can improve the accuracy of positioning the grouped pallet and ensure that the grouped pallet is located at the corresponding position to be detected in the X-axis direction. Similarly, although the third cylinder 6 and the fourth cylinder 7 are on the same side, the synchronous operation in parallel can avoid the deviation of the grouped pallet during the process of pushing the grouped pallet and ensure that the grouped pallet is located at the corresponding position to be detected in the Y-axis direction.

[0069] In some embodiments, Figure 3As shown, the detection device also includes: an intake main pipe 18, an intake branch pipe 19, an oil-water separator 20, a first electromagnetic reversing valve 21, a second electromagnetic reversing valve 22, a third electromagnetic reversing valve 23, a return pipe 24, a first pneumatic joint 25, a second pneumatic joint 26 and an air collection bar 27. The oil-water separator 20 is connected to the air collection bar 27 through the intake main pipe 18, and the air collection bar 27 is connected to the first electromagnetic reversing valve 21, the second electromagnetic reversing valve 22, and the third electromagnetic reversing valve 23. The first electromagnetic reversing valve 21 is connected to the fifth cylinder 8 through the intake branch pipe 19 and the return pipe 24. The second electromagnetic reversing valve 22 is connected to the first cylinder 4 and the second cylinder 5 through the first pneumatic joint 25, the intake branch pipe 19 and the return pipe 24. The third electromagnetic reversing valve 23 is connected to the third cylinder 6 and the fourth cylinder 7 through the second pneumatic joint 26, the intake branch pipe 19 and the return pipe 24; wherein,

[0070] The air inlet main pipe 18 is used to input the air source gas;

[0071] The oil-water separator 20 is used to filter the gas source gas;

[0072] The gas collecting row 27 is used for centralized gas supply and centralized exhaust to the first electromagnetic reversing valve 21, the second electromagnetic reversing valve 22 and the third electromagnetic reversing valve 23;

[0073] The first electromagnetic reversing valve 21, the second electromagnetic reversing valve 22 and the third electromagnetic reversing valve 23 are used to switch the air intake and the air return;

[0074] The first pneumatic connector 25 and the second pneumatic connector 26 are used to divide the source gas in the gas collection column 27 into two paths, which enter the two air inlet branches respectively, and merge the source gas in the two air return pipes into one path and return to the gas collection column 27 .

[0075] Specifically, in actual application, the gas source gas is input to the oil-water separator 20 through the air intake main pipe 18. After being filtered by the oil-water separator 20, the gas source gas enters the gas manifold 27 through the air intake main pipe 18. The gas manifold 27 inputs the gas source gas to the first electromagnetic reversing valve 21, the second electromagnetic reversing valve 22 and the third electromagnetic reversing valve 23 respectively. The first electromagnetic reversing valve 21 inputs the gas source gas to the fifth cylinder 8, the second electromagnetic reversing valve 22 inputs the gas source gas to the first cylinder 4 and the second cylinder 5, and the third electromagnetic reversing valve 23 inputs the gas source gas to the third cylinder 6 and the fourth cylinder 7. Among them, the first cylinder 4 and the second cylinder 5 are synchronously operated in parallel, the third cylinder 6 and the fourth cylinder 7 are synchronously operated in parallel, and the fifth cylinder 8 is operated independently.

[0076] For example, the third solenoid reversing valve 23 synchronously controls the third cylinder 6 and the fourth cylinder 7 through the second pneumatic joint 26. The third solenoid reversing valve 23 divides the gas source gas in the gas collection 27 into two paths through the second pneumatic joint 26, and enters two intake branches respectively, specifically the first intake branch 1901 and the second intake branch 1902. The third solenoid reversing valve 23 inputs the gas source gas to the third cylinder 6 through the first intake branch 1901, and inputs the gas source gas to the fourth cylinder 7 through the second intake branch 1902. Further, the third cylinder 6 discharges the gas source gas out of the third cylinder 6 through the first return pipe 2401, and the fourth cylinder 7 discharges the gas source gas out of the body through the second return pipe 2402. The second pneumatic joint 26 merges the gas source gas in the first return pipe 2401 and the second return pipe 2402 into one path and returns to the gas collection 27. In this way, the third electromagnetic reversing valve 23 simultaneously controls the third cylinder 6 and the fourth cylinder 7, so that the third cylinder 6 and the fourth cylinder 7 are operated in parallel and synchronously. Similarly, the second electromagnetic reversing valve 22 simultaneously controls the first cylinder 4 and the second cylinder 5 through the first pneumatic switch, so that the first cylinder 4 and the second cylinder 5 are operated in parallel and synchronously, which will not be described in detail in this application.

[0077] It should be noted that the electromagnetic reversing valve realizes the telescopic movement of the cylinder by switching the air intake and return (exhaust) of the cylinder. When the cylinder needs to be extended, the electromagnetic reversing valve inputs the air source gas into the cylinder, and when the cylinder needs to be retracted, the electromagnetic reversing valve discharges the air source gas in the cylinder. In this way, through the switching response of the electromagnetic reversing valve, the movement of the cylinder can be accurately controlled, and the movement of multiple cylinders can be coordinated, which improves the positioning accuracy of the grouped pallets and the detection accuracy of the electromagnetic pilot valve.

[0078] In some embodiments, the oil-water separator 20 is also used to adjust the gas supply pressure. It should be noted that in the detection device, different components through which the gas source gas passes may require different gas supply pressures. By adjusting the gas supply pressure through the oil-water separator 20, the stable operation of the detection device can be ensured, and appropriate adjustment of the gas supply pressure can also ensure that the detection device works in the best state, so as to ensure the stability and accuracy of the detection of the electromagnetic pilot valve.

[0079] In some embodiments, a speed regulating valve connector is provided on the first cylinder 4 , the second cylinder 5 , the third cylinder 6 , the fourth cylinder 7 and the fifth cylinder 8 , and the speed regulating valve connector is used to adjust the flow rate of the gas source gas.

[0080] For example, Figure 3As shown, taking the fourth cylinder 7 as an example, the air inlet of the fourth cylinder 7 is provided with a first speed regulating valve connector 701, one end of which is connected to the air inlet of the fourth cylinder 7, and the other end is connected to the second air inlet branch pipe 1902, and the air outlet of the fourth cylinder 7 is provided with a second speed regulating valve connector 702, one end of which is connected to the air outlet of the fourth cylinder 7, and the other end is connected to the second return air pipe 2402.

[0081] In some embodiments, the detection platform 2 is provided with positioning beads, connecting rods, micro switch fixing plates, and micro switches. The micro switch fixing plate is fixed under the detection platform 2, the micro switch is fixed on the micro switch fixing plate, and the positioning beads are connected to the micro switch through a connecting rod. When the positioning beads are pressed into the detection platform 2 by the grouped trays, the micro switch is opened to start the first cylinder 4, the second cylinder 5, the third cylinder 6, the fourth cylinder 7 and the fifth cylinder 8.

[0082] Specifically, when the grouped pallet is placed on the detection platform 2, the grouped pallet will press the positioning bead to make the positioning bead sink a certain displacement, and the displacement of the positioning bead sinking will be vertically transmitted to the micro switch through the connecting rod. When the micro switch is activated, the second electromagnetic reversing valve 22 and the third electromagnetic reversing valve 23 are activated first, and the second electromagnetic reversing valve 22 inputs the air source gas to the first cylinder 4 and the second cylinder 5, and the third electromagnetic reversing valve 23 inputs the air source gas to the third cylinder 6 and the fourth cylinder 7, so that the grouped pallet can be fixed in the corresponding detection area. Next, the first electromagnetic reversing valve 21 is activated, and the air source gas is input to the fifth cylinder 8, and the detection cover assembly 3 is pulled downward, so that its detection unit 15 contacts the electromagnetic pilot valve on the grouped pallet to detect the electromagnetic pilot valve.

[0083] Exemplarily, the detection platform 2 may be provided with a plurality of positioning beads, such as Figure 1 As shown, the detection platform 2 is provided with a first positioning bead 28 and a second positioning bead 29, which are respectively located on the first side and the third side of the detection platform 2. Correspondingly, the detection platform 2 also has a plurality of connecting rods, micro switch fixing plates, and micro switches. Specifically, as Figure 3 As shown, taking the first positioning bead 28 as an example, the first positioning bead 28 is arranged on the detection platform 2, the first micro switch fixing plate 30 is fixed below the detection platform 2, the first micro switch 31 is fixed on the first micro switch fixing plate 30, and the first positioning bead 28 and the first micro switch 31 are connected through the first connecting rod 32. When the first positioning bead 28 and the second positioning bead 29 are pressed into the detection platform by the grouped tray, the first micro switch 31 and the second micro switch corresponding to the second positioning bead 29 are turned on to start the first cylinder 4, the second cylinder 5, the third cylinder 6, the fourth cylinder 7 and the fifth cylinder 8.

[0084] In some embodiments, a plurality of placement areas 201 and identification areas 202 for placing electromagnetic pilot valves are provided on the grouped tray.

[0085] Specifically, Figure 5 As shown, Figure 5 The grouped pallet shown is provided with 6 placement areas 201, which can hold up to 6 electromagnetic pilot valves to be tested. An identification area 202 is provided above the placement area 201, which is used to set a unique identification of the grouped pallet. The staff can scan the unique identification of the identification area 202 of the grouped pallet through a corresponding barcode scanning device (such as a barcode scanning gun), and then bind the detection data of the electromagnetic pilot valve in the grouped pallet with the unique identification of the grouped pallet, and upload the detection data to the server for storage, or upload the qualified detection data to the server for storage.

[0086] In some embodiments, a first guide block is disposed on the second side of the detection platform 2, and a second guide block is disposed on the third side of the detection platform 2;

[0087] The first guide block cooperates with the second guide block to constrain the grouped pallets.

[0088] Exemplarily, the first guide block and the second guide block are used to ensure that when the grouped pallets are pushed into the inspection table, they can move along the correct direction and path, so that other components (such as the first cylinder 4, the second cylinder 5, the third cylinder 6, the fourth cylinder 7, etc.) can clamp and position the grouped pallets so that they can be correctly aligned with the inspection unit 15 to ensure the smooth progress of the inspection process.

[0089] like Figure 6 As shown, a detection system of an electromagnetic pilot valve provided in an embodiment of the present application includes: a desktop 33, a frame body 34, a switch and a detection device of the electromagnetic pilot valve, wherein the desktop 33 is fixed on the frame body 34, and the detection device of the electromagnetic pilot valve is arranged on the desktop 33; wherein,

[0090] The switch includes an emergency stop button 35 , an on button 36 and a stop button 37 .

[0091] For example, Figure 6 As shown, the fixing frame assembly 1 in the detection device is fixed on the frame body 34 to fix the first hinge 101, the second hinge 102 and the third hinge 103. The switch is set below the desktop 33 and fixed on the frame body 34. The button in the switch is connected to the detection device and is used to control the detection device. Among them, the start button 36 is used to start the detection device, the stop button 37 is used to stop the detection device, and the emergency stop button 35 is used for emergency braking of the detection device. The frame body 34 can be an aluminum alloy frame body.

[0092] In some embodiments, the first cylinder 4 and the second cylinder 5 of the detection device are disposed below the table 33 .

[0093] Specifically, Figure 6 As shown, the first cylinder 4 and the second cylinder 5 of the detection device are arranged below the desktop 33. Among them, the detection platform 2 of the detection device is flush with the desktop 33 of the detection system, and the components located below the detection platform 2 are all arranged below the desktop 33. In this way, the staff can directly push the grouped trays from the desktop 33 to the detection platform 2, thereby improving the detection efficiency and reducing manpower. If the first cylinder 4 and the second cylinder 5 are arranged above the desktop 33, the staff is required to lift the grouped trays and put them into the detection platform 2, which increases manpower and reduces the detection efficiency.

[0094] It should be noted that when the detection system of the electromagnetic pilot valve is not in working state, the first cylinder 4, the second cylinder 5, the third cylinder 6, the fourth cylinder 7 and the fifth cylinder 8 are all in a relaxed state. Before the formal detection, the electromagnetic pilot valves are placed in a group of 6 or other numbers (less than or equal to the maximum number of grouped trays), and the staff pushes the grouped trays along the guide rails of the desktop 33 into the detection platform 2. The grouped trays are constrained by the first guide blocks and the second guide blocks on both sides of the detection platform 2. The grouped trays are pushed onto the detection platform 2, and the first positioning beads and the second positioning beads are pressed to trigger the first micro switch and the second micro switch. At this time, the detection device of the electromagnetic pilot valve is unlocked. If the grouped tray is not pushed in or the pushing position is incorrect, and the first positioning beads and the second beads are not pressed, the detection device of the electromagnetic pilot valve is still in a locked state and cannot be used.

[0095] Then, the staff member presses the start button 36, and the first cylinder 4, the second cylinder 5, the third cylinder 6, and the fourth cylinder 7 start to push the grouped pallets into the pallet placement area of ​​the inspection platform 2. Specifically, when pushing, the first cylinder 4 and the second cylinder 5 operate synchronously, and the cylinders extend to push the clamping block to clamp the grouped pallets to complete the positioning and clamping in the X-axis direction. The third cylinder 6 and the fourth cylinder 7 operate synchronously, and the cylinders extend to push the clamping block to cooperate with the first fixed block 13 and the second fixed block 14 to clamp the grouped pallets to complete the positioning and clamping in the Y-axis direction.

[0096] After the grouped pallets are clamped and positioned, the fifth cylinder 8 starts to run, and by contracting, it pulls the detection cover assembly 3 to the preset position, so that the insulation resistance detection pin 1501, the first magnetic detection head 1502 and the second magnetic detection head in the detection unit 15 are fully in contact with the insulation resistance detection point 403, the first magnetic detection point 401 and the second magnetic detection point 402 of the electromagnetic pilot valve to complete the preparation for formal detection.

[0097] Finally, the staff checks whether the grouped pallet has reached the preset position and whether the relevant electrical connections are normal. After ensuring that the grouped pallet is in the preset position and the electrical connections are normal, the staff scans the unique identification code of each solenoid pilot valve in the grouped pallet with a code scanning device, so that the inspection data of each solenoid pilot valve is bound to the unique identification code, and the qualified inspection data is uniformly uploaded to the server and saved.

[0098] In some embodiments, the detection unit 15 can also measure the current, magnetic flux and insulation withstand voltage of the electromagnetic pilot valve.

[0099] Specifically, the detection unit 15 is connected to a programmable logic controller (PLC). The PLC issues a control instruction to energize the electromagnetic pilot valve connected to the detection unit 15. When the relevant interface of the electromagnetic pilot valve is energized, the magnetic flux detection module corresponding to the interface can detect the magnetic force, and after amplification and filtering, it is input to the PLC to obtain the magnetic flux of the electromagnetic pilot valve. At the same time, the current detection circuit can also detect the current of the interface, and also input it to the PLC to obtain the current of the electromagnetic pilot valve. In addition, the PLC issues a control instruction to connect the electromagnetic pilot valve with the positive and negative terminals of the insulation tester, and cuts off the power supply circuit of the electromagnetic pilot valve. At the same time, the electromagnetic pilot valve is tested by the insulation tester, and the test results are input to the PLC to obtain the insulation voltage of the electromagnetic pilot valve.

[0100] In some embodiments, the PLC is communicatively connected to the host computer through a network, and the detection data acquired by the PLC can be processed through the host computer for data visualization, data analysis, data upload and storage, so that the staff can more intuitively observe the various indicators of the electromagnetic pilot valve to facilitate subsequent processing.

[0101] The technical solution provided by the present application can simultaneously detect multiple electromagnetic pilot valves to be detected in a grouped tray, thereby improving the detection efficiency. Moreover, through the detection device, automated detection can be achieved, and only the electromagnetic pilot valves to be detected need to be manually placed in the grouped tray, and then the grouped tray is placed in the detection platform to start the detection, which reduces the complexity of manual operation and makes the detection process more concise. In addition, the detection device reduces the professional skill requirements of the operator, so that non-professionals can also perform detection work.

Claims

1. A detection device for an electromagnetic pilot valve, characterized in that: include: A fixing frame assembly, a detection platform, a detection cover assembly, a grouping tray, a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder, a first clamping block, a second clamping block, a third clamping block, a fourth clamping block, a first fixed block, a second fixed block and a plurality of detection units, wherein the detection platform is fixed on the fixing frame assembly, the detection cover assembly is arranged on the fixing frame assembly, the detection cover assembly is located above the detection platform, the grouping tray is arranged on the detection platform, the detection unit is arranged on the detection cover assembly, and the fifth cylinder is arranged below the detection cover assembly; wherein, The grouped tray is used to place a plurality of electromagnetic pilot valves to be tested; The detection platform has a first side, a second side, a third side and a fourth side, the first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other; The first cylinder and the first clamping block are located on the first side, and the first cylinder is connected to the first clamping block and is used to push the first clamping block to fix the grouped pallet; The second cylinder and the second clamping block are located on the third side, and the second cylinder is connected to the second clamping block and is used to push the second clamping block to fix the grouped pallet; The third cylinder, the third clamping block, the fourth cylinder and the fourth clamping block are located on the second side, the first fixed block and the second fixed block are fixedly arranged on the fourth side, the third cylinder is connected to the third clamping block, the fourth cylinder is connected to the fourth clamping block, the third clamping block and the fourth clamping block cooperate with the first fixed block and the second fixed block to clamp the grouped pallet.

2. The detection device according to claim 1, characterized in that: The detection device also includes: a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate. The first fixing plate and the second fixing plate are arranged on the first side opposite to each other to cooperate in fixing the first cylinder. The third fixing plate and the fourth fixing plate are arranged on the third side opposite to each other to cooperate in fixing the second cylinder.

3. The detection device according to claim 1, characterized in that: The detection unit comprises: an insulation resistance detection pin, a first magnetic detection head and a second magnetic detection head, wherein the insulation resistance detection pin, the first magnetic detection head and the second magnetic detection head are arranged below the detection cover assembly; The insulation resistance detection probe is used to detect the insulation resistance of the electromagnetic pilot valve; The first magnetic detection head and the second magnetic detection head are used to detect the magnetic field strength of the electromagnetic pilot valve.

4. The detection device according to claim 1, characterized in that: The first cylinder and the second cylinder are connected in parallel and operate synchronously, and the third cylinder and the fourth cylinder are connected in parallel and operate synchronously.

5. The detection device according to claim 1, characterized in that: The detection device also includes: an intake main pipe, an intake branch pipe, an oil-water separator, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a third electromagnetic reversing valve, a return pipe, a first pneumatic joint, a second pneumatic joint and an air collection bar, wherein the oil-water separator is connected to the air collection bar through the intake main pipe, the air collection bar is connected to the first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve, the first electromagnetic reversing valve is connected to the fifth cylinder through the intake branch pipe and the return pipe, the second electromagnetic reversing valve is connected to the first cylinder and the second cylinder through the first pneumatic joint, the intake branch pipe and the return pipe, and the third electromagnetic reversing valve is connected to the third cylinder and the fourth cylinder through the second pneumatic joint, the intake branch pipe and the return pipe; wherein, The air inlet main pipe is used to input the air source gas; The oil-water separator is used to filter the gas from the gas source; The gas bus is used for centralized gas supply and centralized exhaust to the first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve; The first electromagnetic reversing valve, the second electromagnetic reversing valve and the third electromagnetic reversing valve are used to switch between air intake and air return; The first pneumatic connector and the second pneumatic connector are used to divide the air source gas in the air collection bar into two paths, which enter two air inlet branches respectively, and merge the air source gas in the two air return pipes into one path and then return to the air collection bar.

6. The detection device according to claim 5, characterized in that: The first cylinder, the second cylinder, the third cylinder, the fourth cylinder and the fifth cylinder are all provided with speed regulating valve joints, and the speed regulating valve joints are used to adjust the flow rate of the gas source gas.

7. The detection device according to claim 1, characterized in that: The detection platform is provided with a positioning bead, a connecting rod, a micro switch fixing plate, and a micro switch. The micro switch fixing plate is fixed under the detection platform, and the micro switch is fixed on the micro switch fixing plate. The positioning bead is connected to the micro switch through the connecting rod. When the positioning bead is pressed into the detection platform by the grouped tray, the micro switch is opened to start the first cylinder, the second cylinder, the third cylinder, the fourth cylinder and the fifth cylinder.

8. The detection device according to claim 1, characterized in that: The grouped tray is provided with a plurality of placement areas and marking areas for placing electromagnetic pilot valves.

9. The detection device according to claim 1, characterized in that: A first guide block is disposed on the second side of the detection platform, and a second guide block is disposed on the third side of the detection platform; The first guide block cooperates with the second guide block to constrain the grouped pallets.

10. A detection system for an electromagnetic pilot valve, characterized in that: include: A desktop, a frame body, a switch, and a detection device as described in any one of claims 1 to 9, wherein the desktop is fixed on the frame body, and the detection device is arranged on the desktop; wherein, The switch includes: an emergency stop button, a start button and a stop button.

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