Solenoid valve finished product detection system

Abstract

The invention discloses an electromagnetic valve finished product detection system, and belongs to the technical field of electromagnetic valve quality inspection, the electromagnetic valve finished product detection system comprises a conveying line for conveying electromagnetic valves, a detection table is connected with a quality inspection turntable through an intermittent driving motor, and the detection table is provided with an arc-shaped positioning outer ring stopper sleeving the outer side wall of the quality inspection turntable; and a magnetic interference device is arranged on the arc-shaped positioning outer ring stopper. In the detection process, the detection liquid is pushed to move through the magnetic force generated by the electromagnetic seat to the magnetic repulsion floating seat, so that the touch piston communicated with the other end of the detection liquid drives the pressing touch column to move, the switch test of the manual switch on the finished electromagnetic valve is realized, and the detection of the manual switch of the electromagnetic valve is achieved; whether the magnitude of the magnetic thrust of the electromagnetic valve meets the requirement or not can be obtained through the moving height of the liquid level in the scale pressure pipe, so that whether the finished electromagnetic valve meets the standard or not is obtained, and on the premise that the finished electromagnetic valve is not damaged, detection of a manual switch, an electromagnetic valve coil and the magnetic thrust is efficiently and reliably achieved.

Description

Technical Field

[0001] The invention relates to the technical field of solenoid valve quality inspection, and in particular to a solenoid valve finished product inspection system. Background Art

[0002] The solenoid valve is a commonly used electromagnetic switch, and its working principle is: when the electromagnetic coil is energized, the electromagnetic force will push the valve core to move away, thereby squeezing the spring on the other side, so that the previously closed valve port is connected through the movement of the valve core. When the electromagnetic coil loses power, the spring on the other side will push the valve core to reset under the action of the elastic force reset, thereby opening the valve port on the other side, thereby achieving the effect of switching the flow path. In this process, the driving force of the electromagnetic coil is the key to ensuring that the valve core can move. During the working process, the magnetic repulsion force generated by the electromagnetic coil must be able to overcome the spring reset force and still achieve the movement of the valve core. During the assembly process of the solenoid valve, the magnetic force is often insufficient due to the improper installation of the coil, and the valve core and the valve body are not on the axis, resulting in increased friction resistance. This situation will cause quality problems of the solenoid valve. Based on this, a finished solenoid valve detection system is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the magnetic repulsion force generated by the electromagnetic coil must be sufficient to overcome the spring return force and still realize the movement of the valve core. During the assembly process of the solenoid valve, the magnetic force is often insufficient due to the improper installation of the coil, and the valve core and the valve body are not on the axis, resulting in increased friction resistance and causing quality problems of the solenoid valve. A finished solenoid valve detection system is proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A finished product detection system for electromagnetic valves, comprising a conveying line for conveying electromagnetic valves, a detection platform being arranged at one end of the conveying line, the conveying line comprising a conveying frame, a circulating conveyor belt being arranged on the conveying frame, and an electromagnetic positioning seat adapted to the electromagnetic valve being arranged on the circulating conveyor belt;

[0006] The testing platform is connected to a quality inspection turntable through an intermittent drive motor, a plurality of inspection modules are provided on the quality inspection turntable, and an arc-shaped positioning outer ring stopper sleeved on the outer side wall of the quality inspection turntable is provided on the testing platform, and a magnetic interference device is provided on the arc-shaped positioning outer ring stopper;

[0007] The detection module includes a detection assembly port opened on the side wall of the quality inspection turntable, a short-circuit power supply device is arranged on the quality inspection turntable located at the detection assembly port, a touch pressure sensing component driven by a pressure control component is arranged on the top of the detection assembly port, and a displacement sensing component for detecting the moving distance of the touch pressure sensing component is arranged on the quality inspection turntable located at the detection assembly port;

[0008] A sliding sleeve is arranged in the detection assembly port, and an adapting detection port adapted to the solenoid valve connection port is opened on the sliding sleeve. The sliding sleeve is connected to a detection pipeline connected to the adapting detection port, and a flow sensor is arranged in the detection pipeline.

[0009] Preferably, the arc-shaped positioning outer ring stopper is composed of a blocking semi-ring body and an arc-shaped extrusion body arranged at the end of the blocking semi-ring body.

[0010] Preferably, the magnetic interference device comprises an interference component mounting seat fixedly arranged on the blocking semi-ring body, and a plurality of magnetic blocks with different magnetic force magnitudes are arranged on the interference component mounting seat.

[0011] Preferably, the short-circuit power supply device includes a plurality of pneumatic push rods arranged on the quality inspection turntable, the output ends of the pneumatic push rods are fixedly connected to power sockets, and the power sockets are provided with power contact posts adapted to the solenoid valves.

[0012] Preferably, the pressure control component includes a U-shaped connecting seat arranged on the upper surface of the quality inspection turntable, a calibrated pressure tube is arranged on the U-shaped connecting seat, a mounting end block is arranged on the top of the calibrated pressure tube, an electromagnetic seat is arranged on the mounting end block, and a magnetic repulsion floating seat that repels the electromagnetic seat is arranged in the calibrated pressure tube.

[0013] Preferably, the touch-pressure sensing component comprises a telescopic touch-pressure port opened in the detection assembly port, a touch-pressure piston is arranged in the telescopic touch-pressure port, a pressing contact column extending downward is fixedly connected to the touch-pressure piston, and the telescopic touch-pressure port is connected to the calibrated pressure tube through a connecting port.

[0014] Preferably, the displacement sensing component comprises a through-beam photoelectric sensor arranged on the mounting end block, and the through-beam photoelectric sensor senses the height of the magnetic repulsion floating seat.

[0015] Preferably, a plurality of electric push rods are fixedly arranged at the bottom of the quality inspection turntable, a push block is fixedly connected to the output end of the electric push rod, a rectangular slide groove is opened at the bottom of the detection assembly port, the push block is in the rectangular slide groove and connected to the side wall of the sliding sleeve.

[0016] Preferably, the intermittent drive motor is arranged in the detection platform, and the output end of the intermittent drive motor is fixedly connected to the central rotating shaft, and the quality inspection turntable is fixedly arranged on the outer side wall of the central rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is designed based on the structural characteristics of the solenoid valve. The solenoid valve is automatically pre-installed in the detection assembly port on the quality inspection turntable through the circulating conveyor belt and the electromagnetic positioning seat thereon. The positioning of the solenoid valve is ensured by the arc-shaped positioning outer ring stopper. During the detection process, the magnetic force generated by the electromagnetic seat on the magnetic repulsion float seat pushes the detection liquid to move downward, so that the touch piston connected to the other end drives the pressing contact column to move downward, thereby realizing the switch test of the manual switch on the finished solenoid valve, and achieving the detection of the manual switch of the solenoid valve.

[0019] 2. According to the relationship between the setting of the bottom inclined surface of the manual switch and the energized driving structure of the solenoid valve, the present invention can determine whether the magnetic thrust of the solenoid valve meets the requirements by measuring the moving height of the liquid level in the calibrated pressure tube, thereby determining whether the finished solenoid valve meets the standards. Without damaging the finished solenoid valve, the manual switch, solenoid valve coil and magnetic thrust can be detected efficiently and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of a finished solenoid valve detection system proposed by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a finished product detection system for a solenoid valve proposed by the present invention;

[0023] Figure 4 This is a structural schematic diagram of a cross section of a quality inspection turntable in a finished solenoid valve inspection system proposed by the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0025] In the figure: 1. test table; 2. conveyor frame; 3. circulating conveyor belt; 4. electromagnetic positioning seat; 5. intermittent drive motor; 6. quality inspection turntable; 7. test assembly port; 8. sliding sleeve; 9. adapter test port; 10. test pipeline; 11. blocking semi-ring body; 12. arc extrusion body; 13. interference component mounting seat; 14. magnetic block; 15. pneumatic push rod; 16. power connection seat; 17. power connection contact column; 18. U-shaped connecting seat; 19. graduated pressure tube; 20. mounting end block; 21. electromagnetic seat; 22. magnetic repulsion floating seat; 23. touch pressure piston; 24. telescopic touch pressure port; 25. press contact column; 26. connecting port; 27. opposite-beam photoelectric sensor; 28. electric push rod; 29. ​​push block; 30. center shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example, see Figures 1 to 5 A finished product inspection system for electromagnetic valves, wherein an inspection platform 1 is arranged at one end of a conveying line, the conveying line comprises a conveying frame 2, a circulating conveyor belt 3 is arranged on the conveying frame 2, the driving structure of the circulating conveyor belt 3 is a prior art and will not be described in detail herein, an electromagnetic positioning seat 4 adapted to the electromagnetic valve is arranged on the circulating conveyor belt 3, the electromagnetic positioning seat 4 is arranged with an opening on the side close to the inspection platform 1, and a baffle is arranged on the side away from the inspection platform 1, when the circulating conveyor belt 3 conveys the electromagnetic valve forward, the end of the electromagnetic valve will be inserted into the inspection assembly port 7 provided on the quality inspection turntable 6 during the conveying process, and will be continuously inserted into the inspection assembly port 7 forward under the action of the baffle, thereby realizing automatic conveying of the electromagnetic valve to the inspection assembly port 7;

[0030] The testing platform 1 is connected to the quality inspection turntable 6 through an intermittent drive motor 5. The intermittent drive motor 5 is arranged inside the testing platform 1, and its output end is fixedly connected to the central rotating shaft 30. The quality inspection turntable 6 is fixedly arranged on the outer wall of the central rotating shaft 30. The intermittent drive motor 5 can intermittently transport the quality inspection turntable 6 to rotate, thereby realizing the automatic switching position effect of the detection module thereon.

[0031] The quality inspection turntable 6 is provided with a plurality of inspection modules, and the inspection platform 1 is provided with an arc-shaped positioning outer ring stopper sleeved on the outer side wall of the quality inspection turntable 6, and the arc-shaped positioning outer ring stopper is composed of a blocking semi-ring body 11 and an arc-shaped extrusion body 12 arranged at the end of the blocking semi-ring body 11.

[0032] It should be noted that the setting of the arc-shaped extrusion piece 12 can guide the extrusion of the solenoid valve that has not been installed in place, so that the solenoid valve can be accurately inserted into the detection assembly port 7, and the semi-ring body 11 is blocked for continuous extrusion, thereby ensuring that the solenoid valve will not be displaced during subsequent detection.

[0033] A magnetic interference device is arranged on the arc-shaped positioning outer ring stopper, and the magnetic interference device includes an interference member mounting seat 13 fixedly arranged on the blocking semi-ring body 11, and a plurality of magnetic blocks 14 with different magnetic force sizes are arranged on the interference member mounting seat 13, wherein the magnetic blocks 14 gradually realize the continuous increase of magnetic force along the rotation direction of the solenoid valve, thereby being able to explore the detection of the influence of external magnetic interference on the reliability of the solenoid valve.

[0034] The detection module includes a detection assembly port 7 opened on the side wall of the quality inspection turntable 6, and a short-circuit power supply device is arranged on the quality inspection turntable 6 located at the detection assembly port 7. Furthermore, the short-circuit power supply device includes a plurality of pneumatic push rods 15 arranged on the quality inspection turntable 6, and the output end of the pneumatic push rod 15 is fixedly connected to a power socket 16, and the power socket 16 is provided with a power contact column 17 adapted to the solenoid valve.

[0035] A touch-pressure sensing element driven by a pressure control element is disposed at the top of the detection assembly port 7, and a displacement sensing element for detecting the moving distance of the touch-pressure sensing element is disposed on the quality inspection turntable 6 located at the detection assembly port 7;

[0036] Further, the pressure control component includes a U-shaped connecting seat 18 arranged on the upper surface of the quality inspection turntable 6, a calibrated pressure tube 19 is arranged on the U-shaped connecting seat 18, a detection liquid is arranged in the calibrated pressure tube 19, a mounting end block 20 is arranged on the top of the calibrated pressure tube 19, an electromagnetic seat 21 is arranged on the mounting end block 20, and a magnetic repulsion floating seat 22 that repel the electromagnetic seat 21 magnetically is arranged in the calibrated pressure tube 19;

[0037] By changing the magnitude of the current, the magnitude of the magnetic force of the electromagnetic seat 21 can be changed, thereby controlling the magnitude of the magnetic repulsion of the magnetic repulsion floating seat 22 that repels the electromagnetic seat 21, thereby achieving the effect of controlling the pressure of the detected liquid and the effect of controlling the pressure of the pressing contact column 25.

[0038] The touch-pressure sensing component includes a telescopic touch-pressure port 24 opened in the detection assembly port 7, a touch-pressure piston 23 is arranged in the telescopic touch-pressure port 24, and the touch-pressure piston 23 is fixedly connected to a downwardly extending pressing contact column 25, and the telescopic touch-pressure port 24 is connected to the calibrated pressure tube 19 through a connecting port 26.

[0039] Furthermore, the displacement sensing component includes a facing photoelectric sensor 27 disposed on the mounting end block 20 , and the facing photoelectric sensor 27 senses the height of the magnetic repulsion floating seat 22 .

[0040] It should be noted that the pressure of the touch piston 23 comes from the detection liquid, and the pressure of the detection liquid comes from the pressure of the magnetic repulsion float 22 (pressure = magnetic repulsion + gravity - buoyancy). Therefore, during the detection, the size of the magnetic repulsion force generated by the electromagnetic coil can be obtained through the upward movement distance of the magnetic repulsion float 22 to determine whether it meets the standard.

[0041] A sliding sleeve 8 is arranged in the detection assembly port 7, and an adapting detection port 9 adapted to the solenoid valve pipe port is opened on the sliding sleeve 8. The sliding sleeve 8 is connected to a detection pipeline 10 connected to the adapting detection port 9, and a flow sensor is arranged in the detection pipeline 10.

[0042] It is worth noting that the detection pipeline 10 is designed to correspond to the position of the passage on the solenoid valve under test, which can realize that when the solenoid valve is subjected to a passage conversion test (i.e., in the process of controlling the solenoid valve to gain or lose power), the flow sensor in the detection pipeline 10 can be used to determine whether the corresponding opened valve passage is open. This is an existing common test structure and will not be elaborated here.

[0043] A plurality of electric push rods 28 are fixedly arranged at the bottom of the quality inspection turntable 6, and a push block 29 is fixedly connected to the output end of the electric push rod 28. A rectangular slide groove is opened at the bottom of the detection assembly port 7. The push block 29 is located in the rectangular slide groove and is connected to the side wall of the sliding sleeve 8. The electric push rod 28 controls the push block 29 to drive the sliding sleeve 8 to move and is mounted on the solenoid valve under test.

[0044] When testing the finished solenoid valves, the present invention places the finished solenoid valves one by one on the electromagnetic positioning seat 4, drives the electromagnetic positioning seat 4 to be transported by the circulating conveyor belt 3, and transports the finished solenoid valves set on the electromagnetic positioning seat 4 forward. The valve body of the finished solenoid valve being transported will be accurately inserted into the detection assembly port 7 provided on the quality inspection turntable 6, and the coil of the finished solenoid valve is on the upper surface of the quality inspection turntable 6, so as to achieve the effect of pre-detection installation;

[0045] Under the action of the intermittent drive motor 5, the finished solenoid valve installed on the quality inspection turntable 6 will be driven to rotate. During the rotation process, under the action of the arc-shaped positioning outer stopper, the finished solenoid valve will be squeezed inward and moved into place under the action of the arc-shaped extrusion body 12, and under the continuous action of the blocking semi-ring body 11, it is ensured that no movement occurs during the inspection process;

[0046] The pneumatic push rod 15 is controlled to drive the connected power socket 16 to move outward, and the electromagnetic end of the finished solenoid valve positioned by the U-shaped connecting socket 18 is in a positioned state. At this time, the power contact column 17 on the power socket 16 will be inserted into the electromagnetic terminal connection port of the solenoid valve to realize the conduction of the solenoid valve circuit; the electric push rod 28 is synchronously controlled to drive the push block 29 to connect the sliding sleeve 8 with the multiple pipeline passage connection ports on the valve body of the solenoid valve;

[0047] During the detection, the electromagnetic seat 21 is powered, so that the magnetic force generated by the electromagnetic seat 21 on the magnetic repulsion floating seat 22 pushes the detection liquid downward, so that the contact piston 23 connected to the other end drives the pressing contact column 25 to move downward, so as to squeeze the manual switch on the finished electromagnetic valve, thereby controlling the opening and closing of the manual switch. By observing the flow sensor set on the sliding sleeve 8, the reliability of the manual switch can be obtained, so as to detect the manual switch of the electromagnetic valve;

[0048] After completing the manual switch detection, a predetermined pressure can be applied through the electromagnetic seat 21 to control the pressing contact column 25 to apply pressure to the manual switch. At this time, the electromagnetic seat 21 is powered by the electric contact column 17 to control its electromagnetic seat coil to work, and the solenoid valve is energized to drive it to move. At this time, due to the obstruction of the manual switch, the pushing end of the solenoid valve will generate a thrust on the manual switch. Since the bottom of the manual switch is a sloped structure, the thrust generated by the energization of the solenoid valve can directly act on the force to move the manual switch upward, so that the contact piston 23 can be moved upward. At this time, the moving height of the liquid level in the calibrated pressure tube 19 can be used to determine whether the magnetic thrust of the solenoid valve meets the requirements, thereby determining whether the finished solenoid valve meets the standards. Without damaging the finished solenoid valve, the manual switch, solenoid valve coil and magnetic thrust can be detected efficiently and reliably.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A finished solenoid valve inspection system, comprising a conveying line for conveying solenoid valves, wherein a detection platform (1) is provided at one end of the conveying line, characterized in that: The conveying line comprises a conveying frame (2), a circulating conveying belt (3) is arranged on the conveying frame (2), and an electromagnetic positioning seat (4) adapted to the electromagnetic valve is arranged on the circulating conveying belt (3); The testing platform (1) is connected to a quality inspection turntable (6) via an intermittent drive motor (5), a plurality of inspection modules are provided on the quality inspection turntable (6), and an arc-shaped positioning outer ring stopper sleeved on the outer side wall of the quality inspection turntable (6) is provided on the testing platform (1), and a magnetic interference device is provided on the arc-shaped positioning outer ring stopper; The detection module comprises a detection assembly port (7) provided on the side wall of the quality inspection turntable (6); a short-circuit power supply device is provided on the quality inspection turntable (6) located at the detection assembly port (7); a touch pressure sensing component driven by a pressure control component is provided at the top of the detection assembly port (7); and a displacement sensing component for detecting the moving distance of the touch pressure sensing component is provided on the quality inspection turntable (6) located at the detection assembly port (7); A sliding sleeve (8) is arranged in the detection assembly port (7), and an adapting detection port (9) adapted to the solenoid valve connection port is provided on the sliding sleeve (8). The sliding sleeve (8) is connected to a detection pipeline (10) connected to the adapting detection port (9), and a flow sensor is arranged in the detection pipeline (10).

2. A finished solenoid valve inspection system according to claim 1, characterized in that: The arc-shaped positioning outer ring stopper is composed of a blocking semi-ring body (11) and an arc-shaped extrusion body (12) arranged at the end of the blocking semi-ring body (11).

3. A finished solenoid valve inspection system according to claim 1, characterized in that: The magnetic interference device comprises an interference component mounting seat (13) fixedly arranged on the blocking semi-ring body (11), and a plurality of magnetic blocks (14) with different magnetic force magnitudes are arranged on the interference component mounting seat (13).

4. A finished product detection system for solenoid valves according to claim 1, characterized in that: The short-circuit power supply device comprises a plurality of pneumatic push rods (15) arranged on a quality inspection turntable (6); the output ends of the pneumatic push rods (15) are fixedly connected to a power receiving socket (16); and the power receiving socket (16) is provided with a power contact column (17) adapted to the electromagnetic valve.

5. A finished product detection system for solenoid valves according to claim 1, characterized in that: The pressure control component comprises a U-shaped connecting seat (18) arranged on the upper surface of the quality inspection turntable (6), a calibrated pressure tube (19) is arranged on the U-shaped connecting seat (18), a mounting end block (20) is arranged at the top of the calibrated pressure tube (19), an electromagnetic seat (21) is arranged on the mounting end block (20), and a magnetic repulsion floating seat (22) that magnetically repels the electromagnetic seat (21) is arranged in the calibrated pressure tube (19).

6. A finished solenoid valve inspection system according to claim 5, characterized in that: The touch-pressure sensing component comprises a telescopic touch-pressure port (24) opened in the detection assembly port (7), a touch-pressure piston (23) is arranged in the telescopic touch-pressure port (24), the touch-pressure piston (23) is fixedly connected with a downwardly extending pressing contact column (25), and the telescopic touch-pressure port (24) is connected to the scale pressure tube (19) through a connecting port (26).

7. A finished product detection system for solenoid valves according to claim 6, characterized in that: The displacement sensing component comprises a counter-beam photoelectric sensor (27) arranged on the mounting end block (20), and the counter-beam photoelectric sensor (27) senses the height of the magnetic repulsion floating seat (22).

8. A finished solenoid valve inspection system according to claim 1, characterized in that: A plurality of electric push rods (28) are fixedly arranged at the bottom of the quality inspection turntable (6), and a push block (29) is fixedly connected to the output end of the electric push rod (28). A rectangular slide groove is opened at the bottom of the detection assembly port (7), and the push block (29) is located in the rectangular slide groove and is connected to the side wall of the sliding sleeve (8).

9. A finished solenoid valve inspection system according to claim 1, characterized in that: The intermittent drive motor (5) is arranged in the detection platform (1), and its output end is fixedly connected to the central rotating shaft (30), and the quality inspection turntable (6) is fixedly arranged on the outer side wall of the central rotating shaft (30).

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