Sealing performance detection device for solenoid valve

Abstract

The utility model relates to the technical field of detection devices, and discloses a sealing performance detection device for an electromagnetic valve, which comprises a rack, the inner wall of the rack is rotatably connected with a transposition swing frame driven by a transposition motor, and the inner wall of the transposition swing frame is rotatably connected with a group of turnover seats distributed in a circumferential array. Torsion springs are fixedly arranged at the rotating connecting positions of the overturning bases and the transposition rotary frame, driven gears are fixedly installed on the surfaces of the overturning bases, a positioning conical column is fixedly installed on the top face of each overturning base, an air guide flow channel with the upper end and the lower end being open is formed in the axis position of each positioning conical column, and a vertically-arranged distance adjusting module is installed in the rack. The peripheral side face of the distance adjusting module is in transmission connection with two gas injection detection assemblies which are symmetrically arranged, and the distance between the two gas injection detection assemblies is adjustable. Through the arrangement of the gas injection detection assembly, the positioning conical column and other structures, the device can efficiently complete the batch continuous automatic detection operation of the electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and more specifically, to a sealing detection device for a solenoid valve. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids and are actuators. Solenoid valves need to be sampled and tested after production to test their tightness under strong pressure, so as to ensure that the solenoid valves will not leak due to pressure shock during actual use.

[0003] In the prior art, the patent document with publication number CN210487166U discloses a post-production sealing test device for solenoid valves. The above device further strengthens the sealing of the solenoid valve port, ensuring the airtightness of the solenoid valve port during the inflation process, thereby ensuring the accuracy of the detection and the quality of the product. However, when performing the detection operation, the above detection device is not convenient for automatically feeding the solenoid valve to be inspected to the detection station for detection. At the same time, the above detection device cannot automatically classify, collect or transport the solenoid valves according to the detection yield of the solenoid valves. Based on this, the present invention provides a sealing detection device for solenoid valves to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a sealing detection device for a solenoid valve, which has the advantage of being able to efficiently complete batch continuous automatic detection operations of the solenoid valve.

[0005] The cam is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip and the toothed connecting strip according to the present invention;

[0006] As a preferred technical solution of the present invention, a stopper for limiting the angle of the flip seat is installed on the surface of the indexing and rotating frame and at the position corresponding to each flip seat.

[0007] As an optimal technical solution of the present invention, the gas injection detection assembly includes a detection platform that is slidably connected to the frame and driven by a distance adjustment module, the inner wall of the detection platform is slidably connected to a gas injection pipe, a pressure sensor is fixedly installed on the surface of the detection platform, a sealing ring is fixedly installed on the end of the gas injection pipe, a pressure-relieving spring is sleeved on the circumferential side of the gas injection pipe and at a position corresponding to the pressure sensor and the sealing ring, an injection flow channel that cooperates with the gas guide channel is fixedly opened inside the gas injection pipe, the bottom surface of the gas injection pipe is fixedly connected to a gas connection pipe connected to a suction pump, an air pressure probe and an electric air valve are respectively installed inside the gas connection pipe, and a single-chip microcomputer electrically connected to the air pressure probe, the electric air valve and the pressure sensor is fixedly installed on the surface of the frame.

[0008] As an optimal technical solution of the present invention, the pitch adjusting module includes a driving motor fixed to the top surface of the frame and a pitch adjusting screw rotatably connected to the inner surface of the frame. The output shaft end of the driving motor is fixedly connected to the pitch adjusting screw. The circumferential side surface of the pitch adjusting screw is symmetrically provided with a forward threaded portion and a reverse threaded portion. The circumferential side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to the detection tables in the two gas injection detection assemblies.

[0009] As an optimal technical solution of the present invention, the cross-section of the positioning cone column is an isosceles trapezoid, the positioning cone column is made of silicone, the peripheral side of the positioning cone column is clamped with the solenoid valve to be detected, and flange pipes are fixed at both ends of the solenoid valve to be detected.

[0010] As an optimal technical solution of the present invention, the transmission part includes a blanking push rod which is vertically arranged and fixedly connected to the frame. The movable end of the blanking push rod is fixedly installed with a blanking tooth plate which cooperates with the driven gear. The rotation axis of the flip seat is perpendicular to the axis of the blanking push rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model, through the arrangement of gas injection detection components, positioning cones and other structures, enables the device to efficiently complete the batch continuous automatic detection operation of solenoid valves. During the detection operation, the device can, on the one hand, complete the batch positioning of the solenoid valves to be detected and continuously feed the solenoid valves to be detected to the detection mechanism. On the other hand, after the solenoid valves are detected, the device can classify and transport or collect the solenoid valves according to the detection yield of the solenoid valves. By achieving the above technical effects, the functionality of the device is effectively improved.

[0013] 2. The utility model can digitally control the sealing strength of the connection between the detection component and the solenoid valve through the provision of an air pressure probe and a pressure sensor. By achieving the above technical effects, the detection error of the device is effectively reduced and the detection accuracy of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a sealing detection device for a solenoid valve according to the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the single chip microcomputer and the indexing and rotating frame of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0017] Figure 4 This is a schematic structural diagram of the utility model's indexing rotary frame and positioning cone column;

[0018] Figure 5 This is a schematic structural diagram of the air guide channel and the driven gear of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the blanking push rod and the blanking tooth plate of the utility model.

[0020] In the figure: 1. Frame; 2. Indexing motor; 3. Indexing rotary frame; 4. Turning seat; 5. Torsion spring; 6. Driven gear; 7. Positioning cone; 8. Air guide channel; 9. Pitch adjustment module; 10. Suction pump; 11. Unloading box; 12. Unloading gear plate; 13. Testing table; 14. Air injection pipe; 15. Pressure sensor; 16. Sealing ring; 17. Pressure relief spring; 18. Air connecting pipe; 19. Air pressure probe; 20. Electric air valve; 21. Single chip microcomputer; 22. Solenoid valve to be tested; 23. Unloading push rod; 24. Stop block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 6As shown, the utility model provides a sealing detection device for a solenoid valve, comprising a frame 1, the inner wall of the frame 1 being rotatably connected to an indexing rotary frame 3 driven by an indexing motor 2, the inner wall of the indexing rotary frame 3 being rotatably connected to a group of flip seats 4 distributed in a circumferential array, and a torsion spring 5 being fixedly provided at the rotational connection between the flip seats 4 and the indexing rotary frame 3;

[0023] A stopper 24 is installed on the surface of the indexing and rotating frame 3 and at the position corresponding to each flip seat 4 to limit the angle of the flip seat 4;

[0024] By setting the stopper 24, the flip seat 4 can automatically adhere to the stopper 24 under the torsion force of the torsion spring 5 in the non-stressed state, and the axis of the positioning cone 7 is perpendicular to the horizontal line in the non-stressed state;

[0025] A driven gear 6 is fixedly mounted on the surface of the flip seat 4, and a positioning cone column 7 is fixedly mounted on the top surface of each flip seat 4. An air flow channel 8 with openings at both ends is opened at the axial position of each positioning cone column 7. The cross section of the positioning cone column 7 is an isosceles trapezoid. The positioning cone column 7 is made of silicone. The side surface of the positioning cone column 7 is clamped with a solenoid valve 22 to be tested, and flange pipes are fixed at both ends of the solenoid valve 22 to be tested.

[0026] By setting the cross section of the positioning cone 7, the device can perform detection operations on various types of electromagnetic valves 22 to be detected. By setting the silicone material of the positioning cone 7, the sealing of the connection between the electromagnetic valve 22 to be detected and the positioning cone 7 is effectively ensured.

[0027] A vertically arranged distance adjustment module 9 is installed inside the frame 1, and the peripheral side of the distance adjustment module 9 is transmission-connected to two symmetrically arranged gas injection detection components with adjustable spacing;

[0028] A suction pump 10 connected to the gas injection detection assembly is fixedly installed on the side of the frame 1;

[0029] The gas injection detection assembly includes a detection platform 13 which is slidably connected to the frame 1 and driven by the distance adjustment module 9. The inner wall of the detection platform 13 is slidably connected to a gas injection pipe 14. A pressure sensor 15 is fixedly installed on the surface of the detection platform 13. A sealing ring 16 is fixedly installed on the end of the gas injection pipe 14. A pressure-reducing spring 17 is sleeved on the circumferential side of the gas injection pipe 14 and corresponds to the position between the pressure sensor 15 and the sealing ring 16. An injection flow channel that cooperates with the gas guide channel 8 is fixedly opened inside the gas injection pipe 14. The bottom surface of the gas injection pipe 14 is fixedly connected to a gas connection pipe 18 connected to the suction pump 10. An air pressure probe 19 and an electric air valve 20 are respectively installed inside the gas connection pipe 18. A single-chip microcomputer 21 electrically connected to the air pressure probe 19, the electric air valve 20 and the pressure sensor 15 is fixedly installed on the surface of the frame 1;

[0030] By setting the pressure sensor 15, the pressure and sealing strength of the sealing ring 16 on the electromagnetic valve 22 to be tested can be monitored in real time;

[0031] By setting the air pressure probe 19, the air pressure data of the flange pipe inside the solenoid valve 22 to be tested can be monitored in real time;

[0032] When the air pressure probe 19 and the pressure sensor 15 are working, the real-time signals monitored are fed back to the single chip microcomputer 21. The single chip microcomputer 21 controls the working state of the suction pump 10 and the distance adjustment module 9 according to the data feedback from the air pressure probe 19 and the pressure sensor 15.

[0033] The air pressure probe 19, the pressure sensor 15 and the single chip microcomputer 21 can all be customized or selected according to actual needs.

[0034] The pitch adjustment module 9 includes a drive motor fixed to the top surface of the frame 1 and a pitch adjustment screw rotatably connected to the inner surface of the frame 1. The output shaft end of the drive motor is fixedly connected to the pitch adjustment screw. The circumferential side surface of the pitch adjustment screw is symmetrically provided with a forward thread portion and a reverse thread portion. The circumferential side surfaces of the forward thread portion and the reverse thread portion are respectively connected to the detection platforms 13 in the two gas injection detection assemblies.

[0035] By setting the forward threaded portion and the reverse threaded portion, the distance between the two detection platforms 13 can be quickly changed, and the electromagnetic valve 22 to be detected can be effectively pressurized;

[0036] Two adjacent blanking boxes 11 are fixedly mounted on the surface of the frame 1, and transmission members cooperating with the driven gear 6 are fixedly mounted on the surface of the frame 1 and at positions corresponding to the two blanking boxes 11;

[0037] The two material discharge boxes 11 are respectively a fine material discharge box 11 and a waste material discharge box 11;

[0038] The fine material discharge box 11 is used to store the electromagnetic valves 22 to be tested that meet the standards, and the waste material discharge box 11 is used to store the electromagnetic valves 22 to be tested that do not meet the standards.

[0039] The transmission part includes a blanking push rod 23 which is vertically arranged and fixedly connected to the frame 1. The movable end of the blanking push rod 23 is fixedly mounted with a blanking tooth plate 12 which cooperates with the driven gear 6. The rotation axis of the flip seat 4 is perpendicular to the axis of the blanking push rod 23.

[0040] The working principle and use process of this utility model:

[0041] Before the test, a six-axis manipulator automatic loading mechanism that cooperates with this device can be placed. The automatic loading mechanism is used to feed the solenoid valve 22 to be tested into this device. During the test, the solenoid valve 22 to be tested is placed on the positioning cone 7. Then, under the action of the indexing and rotating frame 3, the solenoid valve 22 to be tested moves to a coaxial position with the gas injection pipe 14. After the solenoid valve 22 to be tested has completed its movement, the distance adjustment module 9 drives the two gas injection pipes 14 to approach synchronously until the feedback values of the pressure sensors 15 in the two gas injection detection components reach the set threshold value. After the gas injection pipes 14 are fully sealed and fitted with the solenoid valve 22 to be tested, the two gas injection pipes 14 synchronously inject gas into the two flange pipes of the solenoid valve 22 to be tested until the feedback values of the air pressure probes 19 reach the set initial threshold value. After the feedback values of the two air pressure probes 19 reach the set The value is measured, the electric air valve 20 is closed, the electromagnetic valve 22 to be detected is stationary, and after being stationary for a specified time, the real-time value of the air pressure probe 19 is obtained again. The single-chip computer 21 compares the real-time value of the air pressure probe 19 with the initial threshold value, and then assists in measuring the sealing performance of the electromagnetic valve 22 to be detected. If the performance of the electromagnetic valve 22 to be detected meets the standard, the electromagnetic valve 22 to be detected is discharged from the fine material discharge box 11. If the performance of the electromagnetic valve 22 to be detected does not meet the standard, the electromagnetic valve 22 to be detected is discharged from the waste material discharge box 11. When discharging, the discharge push rod 23 drives the driven gear 6 to rotate the set angle through the discharge gear plate 12. After the driven gear 6 rotates the set angle, it drives the flip seat 4 to flip the set angle. After the flip seat 4 flips the set angle, the electromagnetic valve 22 to be detected automatically falls to the discharge box 11 under the action of gravity.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing detection device for a solenoid valve, comprising a frame (1), characterized in that: The inner wall of the frame (1) is rotatably connected to a rotating frame (3) driven by a rotating motor (2), and the inner wall of the rotating frame (3) is rotatably connected to a group of turning seats (4) distributed in a circumferential array. A torsion spring (5) is fixedly provided at the rotation connection between the turning seat (4) and the rotating frame (3). A driven gear (6) is fixedly installed on the surface of the turning seat (4). A positioning cone column (7) is fixedly installed on the top surface of each turning seat (4). The axis position of each positioning cone column (7) is provided with openings at both ends. The air guide channel (8) is provided, a vertically arranged distance adjustment module (9) is installed inside the frame (1), and the peripheral side of the distance adjustment module (9) is transmission-connected to two symmetrically arranged gas injection detection components with adjustable spacing, a suction pump (10) connected to the gas injection detection component is fixedly installed on the side of the frame (1), and two adjacently arranged discharge boxes (11) are fixedly installed on the surface of the frame (1), and transmission parts that cooperate with the driven gear (6) are fixedly installed on the surface of the frame (1) and at the positions corresponding to the two discharge boxes (11).

2. The sealing detection device for a solenoid valve according to claim 1, characterized in that: A stopper (24) for limiting the angle of the flip seat (4) is installed on the surface of the rotation frame (3) and at a position corresponding to each flip seat (4).

3. The sealing detection device for a solenoid valve according to claim 1, characterized in that: The gas injection detection assembly comprises a detection platform (13) slidably connected to the frame (1) and driven by a distance adjustment module (9); an inner wall of the detection platform (13) is slidably connected to a gas injection pipe (14); a pressure sensor (15) is fixedly mounted on the surface of the detection platform (13); a sealing ring (16) is fixedly mounted on the end of the gas injection pipe (14); and a pressure relief spring is sleeved on the circumferential side surface of the gas injection pipe (14) and at a position corresponding to the position between the pressure sensor (15) and the sealing ring (16). (17), an injection flow channel that cooperates with the air guide channel (8) is fixedly opened inside the air injection pipe (14), a gas connection pipe (18) that is connected to the suction pump (10) is fixedly connected to the bottom surface of the air injection pipe (14), an air pressure probe (19) and an electric air valve (20) are respectively installed inside the air connection pipe (18), and a single chip microcomputer (21) that is electrically connected to the air pressure probe (19), the electric air valve (20) and the pressure sensor (15) is fixedly installed on the surface of the frame (1).

4. The sealing detection device for a solenoid valve according to claim 3, characterized in that: The pitch adjustment module (9) comprises a driving motor fixed to the top surface of the frame (1) and a pitch adjustment screw rotatably connected to the inner surface of the frame (1); the output shaft end of the driving motor is fixedly connected to the pitch adjustment screw; the peripheral side surface of the pitch adjustment screw is symmetrically provided with a forward thread portion and a reverse thread portion; the peripheral side surfaces of the forward thread portion and the reverse thread portion are respectively connected to the detection tables (13) in the two gas injection detection assemblies in a transmission manner.

5. The sealing detection device for a solenoid valve according to claim 1, characterized in that: The cross section of the positioning cone (7) is an isosceles trapezoid. The positioning cone (7) is made of silicone. The electromagnetic valve to be detected is clamped on the peripheral side of the positioning cone (7). Both ends of the electromagnetic valve to be detected are fixedly provided with flange pipes.

6. The sealing detection device for a solenoid valve according to claim 1, characterized in that: The transmission member includes a blanking push rod (23) that is vertically arranged and fixedly connected to the frame (1); a blanking tooth plate (12) that cooperates with the driven gear (6) is fixedly installed on the movable end of the blanking push rod (23); and the rotation axis of the flip seat (4) is perpendicular to the axis of the blanking push rod (23).

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