Cartridge valve sealing detection device

Abstract

A cartridge valve sealing detection device is used for carrying out sealing detection on a cartridge valve, and a P port of the cartridge valve is located at the bottom of the cartridge valve. The sealing detection device comprises a base station, wherein a feeding mechanism, a detection mechanism, a blanking mechanism and a carrying mechanism are assembled on the base station. The feeding mechanism comprises a feeding conveying belt, and placing seats used for placing cartridge valves are distributed on the feeding conveying belt at equal intervals. The detection mechanism comprises a detection seat, the middle of the detection seat is provided with a placing groove used for placing the cartridge valve, and the placing groove is internally provided with a detection air tap corresponding to the P port. And the blanking mechanism comprises a first blanking basket for placing qualified products and a second blanking basket for placing unqualified products. The carrying mechanism comprises a carrying mounting frame, and a first clamping jaw and a second clamping jaw are assembled on the carrying mounting frame. Compared with the prior art, manual intervention is not needed in the whole process, the automation degree is high, and the detection efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of plug-in valve detection, and in particular relates to a plug-in valve sealing detection device. Background Art

[0002] In modern industrial production, the detection and classification of cartridge valves is an important part of ensuring product quality. Traditional cartridge valve detection methods usually rely on manual operation, which is not only inefficient, but also easily affected by human factors, making it difficult to ensure the accuracy and consistency of the detection results. In addition, although the existing automated detection equipment has improved the detection efficiency to a certain extent, it still has the following shortcomings:

[0003] 1. Low degree of automation: Although some equipment can realize partially automated detection process, manual intervention is still required in material handling, classification and other links. This semi-automatic mode not only reduces the overall production efficiency, but also increases labor costs and the risk of errors.

[0004] 2. Low detection efficiency: Existing automated testing equipment has bottlenecks in detection speed and processing capacity, especially in the case of mass production, and cannot meet the requirements of high efficiency. Bottlenecks may occur during the detection process, resulting in limited efficiency of the entire production line.

[0005] In summary, the existing technology has many deficiencies in the automation level and detection efficiency of cartridge valves. A highly automated solution is urgently needed to improve detection efficiency and accuracy, thereby improving the overall production quality and efficiency. Summary of the invention

[0006] In view of the deficiencies in the above-mentioned prior art, the present invention provides a complete automated inspection and processing line formed by integrating a feeding mechanism, a detection mechanism, a blanking mechanism and a handling mechanism, which can automatically classify cartridge valves according to whether they are qualified or not, without the need for human intervention throughout the process, thereby significantly improving the degree of automation and detection efficiency, and effectively solving the problems existing in the prior art.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0008] A cartridge valve sealing detection device is used for sealing detection of the cartridge valve. The P port of the cartridge valve is located at the bottom of the cartridge valve. The cartridge valve is equipped with a valve core and a spring. When the cartridge valve is in a closed state, the valve core is against the P port under the action of the spring. The sealing detection device includes a base, and a feeding mechanism, a detection mechanism, a blanking mechanism and a handling mechanism are installed on the base. The feeding mechanism includes a feeding conveyor belt, and the feeding conveyor belt is evenly distributed with a placement seat for placing the cartridge valve. The detection mechanism includes a detection seat, and a placement groove for placing the cartridge valve is arranged in the middle of the detection seat, and a detection gas nozzle corresponding to the P port is arranged in the placement groove. The blanking mechanism includes a first blanking basket for placing qualified products and a second blanking basket for placing unqualified products. The handling mechanism includes a handling mounting frame, and the handling mounting frame is equipped with a first clamping jaw for carrying the cartridge valve on the feeding mechanism to the detection mechanism, and a second clamping jaw for carrying the cartridge valve that has completed the detection to the blanking mechanism.

[0009] As a preferred technical solution for the cartridge valve sealing detection device, a synchronous transmission structure is installed in the detection seat, and a plurality of clamping members are arranged around the placement groove as the center on the synchronous transmission structure, and a back plate is provided on the side of the clamping member facing the placement groove. Before the detection, the synchronous transmission structure drives the clamping member to move radially toward the placement groove, and a plurality of groups of clamping members clamp and fix the cartridge valve through the back plate.

[0010] As a preferred technical solution of the cartridge valve sealing detection device, the synchronous transmission structure includes a synchronous motor, a gear ring, a driving wheel and a plurality of planetary wheels. The synchronous motor is connected to the driving wheel, the driving wheel is meshed with the gear ring for transmission, and the plurality of planetary wheels are meshed with the gear ring for transmission. A rack is provided on the clamping member, and the planetary wheels and the clamping member are meshed and connected one by one.

[0011] As a preferred technical solution of a cartridge valve sealing detection device, a soft gasket is installed on the side of the abutment plate facing the cartridge valve.

[0012] As a preferred technical solution of a cartridge valve sealing detection device, the detection mechanism also includes an annular air nozzle seat, and a plurality of detection air nozzles are arranged on the air nozzle seat.

[0013] As a preferred technical solution of a cartridge valve sealing detection device, a sealing gasket is installed in the placement groove, an assembly groove is arranged in the middle of the sealing gasket, and the air valve seat is located in the assembly groove.

[0014] As a preferred technical solution of a cartridge valve sealing detection device, the sealing gasket is provided with a sealing flange at the notch of the assembly groove, and when the cartridge valve is located in the placement groove, the sealing flange abuts against the inner wall of the P port.

[0015] As a preferred technical solution for a cartridge valve sealing detection device, the detection mechanism also includes a pressure detection component, which includes a telescopic drive, and the telescopic drive is connected to a detection push rod. The detection push rod passes through the valve seat and is provided with a butt joint at the end that cooperates with the bottom surface of the valve core.

[0016] As a preferred technical solution for a cartridge valve sealing detection device, the blanking mechanism also includes a blanking conveyor belt, the first blanking basket is located at the conveying end of the blanking conveyor belt, the second blanking basket is located on one side of the blanking conveyor belt, and a pushing cylinder is installed on the other side of the blanking conveyor belt.

[0017] As a preferred technical solution for a cartridge valve sealing detection device, the transport mounting frame is equipped with a sliding frame through a transverse sliding mold assembly, the sliding frame is provided with a first crossbeam and a second crossbeam, the first crossbeam is equipped with a first mounting plate through a first lifting sliding mold assembly, the first clamp is assembled on the first mounting plate, the second crossbeam is equipped with a second mounting plate through a second lifting sliding mold assembly, and the second clamp is assembled on the second mounting plate.

[0018] Compared with the prior art, the present application has the following beneficial effects: the present application integrates a feeding mechanism, a detection mechanism, a blanking mechanism and a handling mechanism to form a complete automated detection and processing line, and can automatically classify cartridge valves according to whether they are qualified or not, without the need for manual intervention throughout the process, with a high degree of automation and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a cartridge valve seal detection device Figure 1 .

[0020] Figure 2 A three-dimensional diagram of a cartridge valve seal detection device Figure 2 .

[0021] Figure 3 It is a top view of the cartridge valve sealing detection device.

[0022] Figure 4 This is a comparison chart of the detection seat in the working state and the non-working state.

[0023] Figure 5 This is a partial enlarged view of the detection seat at the placement groove.

[0024] Figure 6 This is the structural explosion diagram of the detection seat.

[0025] Figure 7 This is a schematic diagram of the internal structure of the detection seat.

[0026] The following is a description of the markings in the accompanying drawings of the specification:

[0027] 100, feeding mechanism; 110, feeding conveyor belt; 120, placement seat;

[0028] 200, detection mechanism; 210, detection seat; 211, placement groove; 220, clamping member; 221, abutment plate; 222, gasket; 223, rack; 230, synchronous motor; 240, gear ring; 250, driving wheel; 260, planetary gear; 270, air nozzle seat; 271, detection air nozzle; 280, sealing pad; 281, sealing flange; 290, telescopic driver; 291, detection ejector rod; 292, abutment head;

[0029] 300, material dropping mechanism; 310, first material dropping basket; 320, second material dropping basket; 330, material dropping conveyor belt; 340, material pushing cylinder;

[0030] 400, transport mechanism; 410, transport mounting frame; 420, sliding frame; 430, first crossbeam; 431, first mounting plate; 432, first clamping jaw; 440, second crossbeam; 441, second mounting plate; 442, second clamping jaw. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] In the following embodiments, the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and therefore cannot be understood as limiting the present invention. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0034] Reference Figures 1 to 7, a cartridge valve sealing detection device, used for sealing detection of the cartridge valve, the P port of the cartridge valve is located at the bottom of the cartridge valve, the cartridge valve is equipped with a valve core and a spring, when the cartridge valve is in a closed state, the valve core is against the P port under the action of the spring. The sealing detection device includes a base, on which a feeding mechanism 100, a detection mechanism 200, a blanking mechanism 300 and a conveying mechanism 400 are installed. The feeding mechanism 100 includes a feeding conveyor belt 110, on which placement seats 120 for placing cartridge valves are evenly distributed. The detection mechanism 200 includes a detection seat 210, a placement groove 211 for placing cartridge valves is arranged in the middle of the detection seat 210, and a detection air nozzle 271 corresponding to the P port is arranged in the placement groove 211. The blanking mechanism 300 includes a first blanking basket 310 for placing qualified products and a second blanking basket 320 for placing unqualified products. The transport mechanism 400 includes a transport mounting frame 410, on which a first clamp 432 for transporting the cartridge valve on the feeding mechanism 100 to the detection mechanism 200 and a second clamp 442 for transporting the cartridge valve after detection to the blanking mechanism 300 are mounted. The present application integrates the feeding mechanism 100, the detection mechanism 200, the blanking mechanism 300 and the transport mechanism 400 to form a complete automated detection and processing line, and can automatically classify the cartridge valves according to whether they are qualified or not, without manual intervention throughout the process, with a high degree of automation and high detection efficiency.

[0035] The working principle of the sealing detection device described in the present application is as follows: First, the cartridge valve to be tested is transferred to the feeding conveyor belt 110 through other transfer equipment and installed on the placement seat 120. Then, the cartridge valve on the feeding conveyor belt 110 is transported to the detection seat 210 by the transport mechanism 400. At this time, the P port of the cartridge valve is in a closed state with the cooperation of the placement groove 211. The detection air nozzle 271 supplies air to the P port and maintains a certain air pressure for a period of time. If the air pressure value drops rapidly during this period, it means that the sealing of the cartridge valve is insufficient and it is judged as an unqualified product; if the air pressure value remains unchanged during this period or its drop rate is within a certain error range, it means that the sealing of the cartridge valve meets the requirements and is judged as a qualified product. After the detection is completed, the transport mechanism 400 transports the cartridge valve to the blanking mechanism 300, and the blanking mechanism 300 classifies and blanks the cartridge valve according to the detection results.

[0036] In order to further ensure the stability of the cartridge valve body during detection, a synchronous transmission structure is installed in the detection seat 210, and a plurality of clamping members 220 are arranged around the placement groove 211 as the center. A back plate 221 is provided on the side of the clamping member 220 facing the placement groove 211. Before the detection, the synchronous transmission structure drives the clamping member 220 to move radially toward the placement groove 211, and a plurality of groups of clamping members 220 are matched to clamp and fix the cartridge valve through the back plate 221. The synchronous transmission structure includes a synchronous motor 230, a ring gear 240, a driving wheel 250 and a plurality of planetary gears 260. The synchronous motor 230 is connected to the driving wheel 250, the driving wheel 250 is meshed with the ring gear 240 for transmission, and a plurality of the planetary gears 260 are meshed with the ring gear 240 for transmission. A rack 223 is provided on the clamping member 220, and the planetary gears 260 and the clamping member 220 are meshed and connected one by one. The synchronous transmission structure is used to ensure the synchronous movement of the clamping member 220, so that the cartridge valve can always be kept in the center position during the clamping process, thereby avoiding the problem of poor sealing due to offset. In addition, it can also effectively prevent the cartridge valve from loosening or moving up, provide a consistent test environment in subsequent pressure tests, and avoid affecting the test results due to changes in the position of the cartridge valve. In order to avoid damage to the surface of the cartridge valve during the clamping process, a soft gasket 222 is installed on the side of the abutment plate 221 facing the cartridge valve.

[0037] Furthermore, the detection mechanism 200 also includes an annular air nozzle seat 270, and a plurality of detection air nozzles 271 are arranged on the air nozzle seat 270. The design of multiple groups of detection air nozzles 271 can quickly and evenly increase the pressure, thereby improving the detection speed. A sealing gasket 280 is installed in the placement groove 211, and an assembly groove is provided in the middle of the sealing gasket 280, and the air nozzle seat 270 is located in the assembly groove. The sealing gasket 280 is conducive to improving the sealing effect during detection, preventing gas leakage, and ensuring the detection accuracy. The sealing gasket 280 is provided with a sealing flange 281 at the notch of the assembly groove, and when the cartridge valve is located in the placement groove 211, the sealing flange 281 is against the inner wall of the P port. The sealing flange 281 further enhances the sealing effect and ensures the reliability of the detection result.

[0038] In addition, the detection mechanism 200 also has a pressure detection function. Specifically, the detection mechanism 200 also includes a pressure detection component, which includes a telescopic driver 290, and the telescopic driver 290 is connected to a detection push rod 291. The detection push rod 291 passes through the air nozzle seat 270 and is provided with a butt joint 292 that cooperates with the bottom surface of the valve core at the end. The pressure detection component can use the detection push rod 291 to directly apply pressure to the valve core to simulate the pressure of the hydraulic oil on the valve core, thereby opening or closing the cartridge valve. According to the force and displacement applied by the detection push rod 291, the pressure when the valve core is opened can be indirectly determined, and then it can be judged whether the set pressure of the cartridge valve meets the exit requirements.

[0039] As a further improvement of the pressure detection assembly, the telescopic actuator 290 can be programmed to enable the pressure detection assembly to simulate pressure fluctuations of different frequencies and amplitudes to test the sealing performance of the cartridge valve under dynamic conditions. This dynamic test can better simulate the actual working environment and improve the comprehensiveness and accuracy of the detection.

[0040] In order to further improve the reliability and accuracy of the detection device, the detection mechanism 200 also includes an air pressure sensor and a flow meter (not shown in the drawings). The air pressure sensor is installed between the detection air nozzle 271 and the air source, and is used to monitor the air pressure value output by the detection air nozzle 271 in real time. The flow meter is installed at the air inlet of the air nozzle seat 270 to measure the flow of the gas. By combining the data of the pressure sensor and the flow meter, the sealing performance of the cartridge valve can be judged more accurately. When the rate of decrease of the air pressure value during the detection process exceeds the preset threshold, the system will automatically determine that the cartridge valve is a defective product and classify it into the second blanking basket 320; otherwise, it will be determined as a qualified product and classified into the first blanking basket 310.

[0041] In addition, in order to improve the detection accuracy of the sealing detection, a temperature sensor (not shown in the drawings) is also provided in the detection seat 210 to monitor the ambient temperature during the detection process. Changes in temperature may affect the density and pressure of the gas, thereby affecting the accuracy of the detection results. Through the data feedback of the temperature sensor, the system can perform temperature compensation on the air pressure value to ensure the consistency and reliability of the detection results. Alternatively, a micro heater and a cooling device can be integrated in the air nozzle seat 270 to automatically adjust the temperature of the air nozzle seat 270 according to the data feedback of the temperature sensor to ensure that the air pressure value during the detection process is not affected by the ambient temperature, thereby improving the consistency and reliability of the detection results.

[0042] In the present application, the blanking mechanism 300 also includes a blanking conveyor belt 330, the first blanking basket 310 is located at the conveying end of the blanking conveyor belt 330, the second blanking basket 320 is located on one side of the blanking conveyor belt 330, and the other side of the blanking conveyor belt 330 is equipped with a push cylinder 340. When the cartridge valve is judged to be unqualified, the push cylinder 340 corresponding to the cartridge valve pushes the cartridge valve to the second blanking basket 320. When the cartridge valve is judged to be qualified, the cartridge valve falls into the first blanking basket 310 as the blanking conveyor belt 330 moves. This design realizes the automatic separation and collection of qualified and unqualified products, and improves production efficiency. In addition, a barcode scanner or RFID reader (not shown in the drawings) is installed on the blanking conveyor belt to identify and track each cartridge valve. In this way, the test results and production information of each cartridge valve can be recorded, which is convenient for subsequent quality traceability and management.

[0043] In the present application, the transport mounting frame 410 is equipped with a sliding frame 420 through a transverse sliding mold assembly, and the sliding frame 420 is provided with a first beam 430 and a second beam 440. The first beam 430 is equipped with a first mounting plate 431 through a first lifting sliding mold assembly, and the first clamping claw 432 is assembled on the first mounting plate 431. The second beam 440 is equipped with a second mounting plate 441 through a second lifting sliding mold assembly, and the second clamping claw 442 is assembled on the second mounting plate 441. This design can improve the positioning accuracy and operational flexibility during the detection process, and ensure the accuracy and reliability of the detection results.

[0044] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A cartridge valve sealing detection device, used for sealing detection of a cartridge valve, wherein the P port of the cartridge valve is located at the bottom of the cartridge valve, a valve core and a spring are installed in the cartridge valve, and when the cartridge valve is in a closed state, the valve core is pressed against the P port under the action of the spring, characterized in that: The base comprises: The feeding mechanism (100) comprises a feeding conveyor belt (110), on which placement seats (120) for placing cartridge valves are evenly distributed. The detection mechanism (200) comprises a detection seat (210), wherein a placement groove (211) for placing the cartridge valve is provided in the middle of the detection seat (210), and a detection air nozzle (271) corresponding to the P port is provided in the placement groove (211); A material dropping mechanism (300) comprising a first material dropping basket (310) for placing qualified products and a second material dropping basket (320) for placing unqualified products; The transport mechanism (400) comprises a transport mounting frame (410), wherein the transport mounting frame (410) is equipped with a first clamp (432) for transporting a cartridge valve on a feeding mechanism (100) to a detection mechanism (200), and a second clamp (442) for transporting a cartridge valve that has completed detection to a blanking mechanism (300).

2. A cartridge valve sealing detection device according to claim 1, characterized in that: The detection seat (210) is equipped with a synchronous transmission structure, and a plurality of clamping members (220) are arranged on the synchronous transmission structure in a ring around the placement groove (211), and a backing plate (221) is provided on one side of the clamping member (220) facing the placement groove (211); before the detection is performed, the synchronous transmission structure drives the clamping member (220) to move radially toward the placement groove (211), and the plurality of groups of clamping members (220) cooperate with the backing plate (221) to clamp and fix the cartridge valve.

3. A cartridge valve sealing detection device according to claim 2, characterized in that: The synchronous transmission structure comprises a synchronous motor (230), a ring gear (240), a driving wheel (250), and a plurality of planetary wheels (260); the synchronous motor (230) is connected to the driving wheel (250), the driving wheel (250) is meshed with the ring gear (240) for transmission, and the plurality of planetary wheels (260) are meshed with the ring gear (240) for transmission; a rack (223) is provided on the clamping member (220), and the planetary wheels (260) and the clamping member (220) are meshed and connected in a one-to-one correspondence.

4. A cartridge valve sealing detection device according to claim 2, characterized in that: A soft gasket (222) is installed on the side of the abutment plate (221) facing the cartridge valve.

5. The cartridge valve sealing detection device according to claim 1, characterized in that: The detection mechanism (200) further comprises an annular air nozzle seat (270), and a plurality of detection air nozzles (271) are arranged on the air nozzle seat (270).

6. A cartridge valve sealing detection device according to claim 5, characterized in that: A sealing pad (280) is installed in the placement groove (211), an assembly groove is provided in the middle of the sealing pad (280), and the air nozzle seat (270) is located in the assembly groove.

7. A cartridge valve sealing detection device according to claim 6, characterized in that: The sealing pad (280) is provided with a sealing flange (281) at the notch of the assembly groove. When the cartridge valve is located in the placement groove (211), the sealing flange (281) abuts against the inner wall of the P port.

8. The cartridge valve sealing detection device according to claim 5, characterized in that: The detection mechanism (200) further comprises a pressure detection assembly, the pressure detection assembly comprising a telescopic driver (290), the telescopic driver (290) being connected to a detection push rod (291), the detection push rod (291) passing through the valve seat (270) and having an abutment joint (292) at the end thereof that cooperates with the bottom surface of the valve core.

9. The cartridge valve sealing detection device according to claim 1, characterized in that: The material dropping mechanism (300) further comprises a material dropping conveyor belt (330), the first material dropping basket (310) is located at the conveying end of the material dropping conveyor belt (330), the second material dropping basket (320) is located on one side of the material dropping conveyor belt (330), and a pushing cylinder (340) is installed on the other side of the material dropping conveyor belt (330).

10. The cartridge valve sealing detection device according to claim 1, characterized in that: The transport mounting frame (410) is equipped with a sliding frame (420) via a transverse sliding die assembly, the sliding frame (420) is provided with a first crossbeam (430) and a second crossbeam (440), the first crossbeam (430) is equipped with a first mounting plate (431) via a first lifting sliding die assembly, the first clamping claw (432) is assembled on the first mounting plate (431), the second crossbeam (440) is equipped with a second mounting plate (441) via a second lifting sliding die assembly, and the second clamping claw (442) is assembled on the second mounting plate (441).

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