Hoop oil tightness detection device and method

Abstract

The invention discloses a hoop oil tightness detection device and method. The device comprises an oil storage tank, a pressurizing mechanism, an oil path and a camera module, the oil storage tank is used for storing an oil-soluble fluorescent leak detection agent, the oil storage tank is communicated with the oil path, a to-be-detected hoop is arranged on the oil path and is communicated with the oil path, the pressurizing mechanism is used for pressurizing and maintaining the pressure of the oil-soluble fluorescent leak detection agent in the oil path, and the camera module is arranged towards the to-be-detected hoop. The device is used for shooting the leakage part of the to-be-detected clamp. The device can safely, efficiently, conveniently and accurately detect and discover all types of hoops and even tiny leakage, and is low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of clamp oil tightness detection, and in particular to a clamp oil tightness detection device and method. Background Art

[0002] The current method for testing the oil tightness of clamps usually involves first passing high-pressure oil into the clamp, and then manually feeling the clamp gap to see if there is oil leakage. This method is not efficient, and because the oil molecules are high, it cannot detect even slight leaks, which is prone to false detection. Summary of the Invention

[0003] The main purpose of the present invention is to provide a clamp oil tightness detection device and method, aiming to improve the clamp oil tightness detection efficiency and detection accuracy.

[0004] To achieve the above-mentioned object, the present invention provides a clamp oil tightness detection device, the device comprising: an oil storage tank, a pressurizing mechanism, an oil circuit and a camera module;

[0005] The oil storage tank is used to store oil-soluble fluorescent leak detection agent, the oil storage tank is connected to the oil circuit, the clamp to be tested is arranged on the oil circuit and is connected to the oil circuit, the pressurizing mechanism is used to pressurize and maintain the oil-soluble fluorescent leak detection agent in the oil circuit, and the camera module is set towards the clamp to be tested and is used to photograph the leakage part of the clamp to be tested.

[0006] A further technical solution of the present invention is that the oil-soluble fluorescent leak detection agent in the oil storage tank is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of the aviation kerosene to the fluorescent agent is 500:1.

[0007] A further technical solution of the present invention is that the component of the fluorescent agent is LUYOR-6100 oily fluorescent leak detection agent; and the component of the aviation kerosene is RP-3.

[0008] A further technical solution of the present invention is that the wavelength of the light source of the camera module is 365 nanometers.

[0009] A further technical solution of the present invention is that the oil circuit includes a first electromagnetic ball valve, a second electromagnetic ball valve, a third electromagnetic ball valve, a fourth electromagnetic ball valve, a pressure gauge, a one-way valve and a flow sensor;

[0010] One end of the first electromagnetic ball valve is connected to the oil storage tank, and the other end is connected to the second electromagnetic ball valve, the pressure gauge and one end of the clamp to be tested through a four-way valve. The other end of the clamp to be tested is connected to one end of the one-way valve and one end of the fourth electromagnetic ball valve. The other end of the one-way valve is connected to the third electromagnetic ball valve, and the other end of the fourth electromagnetic ball valve is connected to the flow sensor.

[0011] A further technical solution of the present invention is that it also includes a rotation drive mechanism for driving the clamp to be tested to rotate.

[0012] A further technical solution of the present invention is that the rotary drive mechanism includes a first rotary joint and a second rotary joint arranged on the oil circuit, and a first drive motor and a second drive motor for driving the first rotary joint and the second rotary joint to move and thereby drive the clamp to be tested to rotate, the mover of the first rotary joint is connected to one end of the clamp to be tested, and the mover of the second rotary joint is connected to the other end of the clamp to be tested.

[0013] A further technical solution of the present invention is that it also includes an X-axis motion module and a Y-axis motion module, the camera module is arranged on the Y-axis motion module, and the Y-axis motion module is arranged on the X-axis motion module.

[0014] To achieve the above object, the present invention further proposes a method for detecting oil tightness of a clamp, which is applied to the above-mentioned clamp oil tightness detection device, and comprises the following steps:

[0015] Step S10, exhaust: inject the oil-soluble fluorescent leak detection agent into the oil circuit fluid system, start the system cycle, open the first electromagnetic ball valve and the fourth electromagnetic ball valve, close the second electromagnetic ball valve and the third electromagnetic ball valve, and exhaust the air in the oil circuit;

[0016] Step S20, pressurizing: closing the third electromagnetic ball valve and pressurizing the oil circuit to a preset pressure through the pressurizing mechanism;

[0017] Step S30, pressure holding test: after holding the pressure for a preset time, the flow sensor is used to determine whether the clamp to be tested is leaking oil;

[0018] Step S40, pressure relief: opening the second electromagnetic ball valve, the third electromagnetic ball valve, and the fourth electromagnetic ball valve, photographing the clamp to be tested by a camera module, and determining whether the clamp to be tested is leaking oil based on the photographed results;

[0019] Step S50, drying the oil circuit.

[0020] A further technical solution of the present invention is that before step S10, the method includes: preparing an oil-soluble fluorescent leak detection agent, wherein the oil-soluble fluorescent leak detection agent is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of aviation kerosene to the fluorescent agent is 500:1; the component of the fluorescent agent is LUYOR-6100 oil-based fluorescent leak detection agent; and the component of aviation kerosene is RP-3.

[0021] The beneficial effects of the clamp oil tightness detection device and method of the present invention are:

[0022] The present invention adopts the above technical solution, including: an oil storage tank, a pressurizing mechanism, an oil circuit and a camera module; the oil storage tank is used to store an oil-soluble fluorescent leak detection agent, the oil storage tank is connected to the oil circuit, the clamp to be tested is arranged on the oil circuit and is connected to the oil circuit, the pressurizing mechanism is used to pressurize and maintain the oil-soluble fluorescent leak detection agent in the oil circuit, the camera module is set toward the clamp to be tested, and is used to photograph the leakage part of the clamp to be tested, which can safely, efficiently, conveniently and accurately detect and discover all types of clamps and even extremely small leaks, and at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the clamp oil tightness detection device of the present invention;

[0025] Figure 2 This is a schematic structural diagram from another angle of a preferred embodiment of the clamp oil tightness detection device of the present invention;

[0026] Figure 3 It is a structural diagram of the oil circuit;

[0027] Figure 4 This is a structural diagram of the oil circuit from another angle;

[0028] Figure 5 This is another structural diagram of the oil circuit from another angle;

[0029] Figure 6 It is a flow chart of a preferred embodiment of the clamp oil tightness detection method of the present invention.

[0030] Description of Figure Numbers:

[0031] Oil circuit 10; camera module 20; clamp to be tested 30; first electromagnetic ball valve 40; second electromagnetic ball valve 50; third electromagnetic ball valve 60; fourth electromagnetic ball valve 70; pressure gauge 80; one-way valve 90; flow sensor 100; first rotary joint 110; second rotary joint 120; X-axis motion module 130; Y-axis motion module 140.

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention proposes a clamp oil tightness detection device, such as Figures 1 to 5 As shown, a preferred embodiment of the clamp oil tightness detection device of the present invention includes: an oil storage tank (not shown in the figure), a pressurizing mechanism (not shown in the figure), an oil circuit 10 and a camera module 20.

[0035] The oil storage tank is used to store the oil-soluble fluorescent leak detection agent, and the oil storage tank is connected to the oil circuit 10. The clamp 30 to be tested is arranged on the oil circuit 10 and is connected to the oil circuit 10. The pressurizing mechanism is used to pressurize and maintain the oil-soluble fluorescent leak detection agent in the oil circuit 10. The camera module 20 is set toward the clamp 30 to be tested and is used to photograph the leakage part of the clamp 30 to be tested.

[0036] In this embodiment, the oil-soluble fluorescent leak detection agent in the oil storage tank is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of the aviation kerosene to the fluorescent agent is 500:1.

[0037] The component of the fluorescent agent is LUYOR-6100 oily fluorescent leak detection agent; the component of the aviation kerosene is RP-3.

[0038] The wavelength of the light source of the camera module 20 is 365 nanometers.

[0039] In this embodiment, it is very simple to use LUYOR-6100 oil-based fluorescent leak detector for leak detection. The overall detection process includes two steps. The first step is to inject the oil-soluble fluorescent leak detector into the oil circuit 10 fluid system, start the system circulation, and the oil-soluble fluorescent leak detector quickly dissolves and penetrates into all leaking parts of the system with the fluid. This process takes about 5-10 minutes (depending on the oil and temperature). The second step: Use a high-intensity black light (invisible ultraviolet or infrared) lamp to illuminate the detection area. The leak will show a strong yellow-white fluorescence, which is easy to detect and is particularly suitable for micro-leaks. This fluorescence can be easily distinguished from the natural green fluorescence of general oil products.

[0040] This embodiment uses LUYOR-6100 oil-based fluorescent leak detector to test the oil tightness of the clamp. Compared with the visual inspection, air pressure inspection, soap foam inspection and other detection methods in the existing technology, it can safely, efficiently, conveniently and accurately detect all types of even extremely small leaks, and the cost is very low.

[0041] Furthermore, in this embodiment, the oil circuit 10 includes a first electromagnetic ball valve 40 , a second electromagnetic ball valve 50 , a third electromagnetic ball valve 60 , a fourth electromagnetic ball valve 70 , a pressure gauge 80 , a one-way valve 90 and a flow sensor 100 .

[0042] One end of the first electromagnetic ball valve 40 is connected to the oil storage tank, and the other end is connected to the second electromagnetic ball valve 50, the pressure gauge 80 and one end of the clamp to be tested 30 through a four-way valve. The other end of the clamp to be tested 30 is connected to one end of the one-way valve 90 and one end of the fourth electromagnetic ball valve 70. The other end of the one-way valve 90 is connected to the third electromagnetic ball valve 60, and the other end of the fourth electromagnetic ball valve 70 is connected to the flow sensor 100.

[0043] In this embodiment, the flow sensor 100 can be used to detect whether the air in the oil circuit 10 is discharged. Specifically, when the oil circuit 10 is pressurized, if the pressure of the flow sensor 100 changes and reaches a preset pressure value, it means that the oil-soluble fluorescent leak detection agent in the oil circuit 10 passes through the fourth electromagnetic ball valve 70, and it can be determined that the air in the oil circuit 10 has been discharged.

[0044] In addition, the flow sensor 100 can also be used to detect whether there is a serious leakage in the clamp 30 to be tested. If, during the pressurization phase, the flow sensor 100 fails to reach a preset pressure value within a preset time, it indicates that there is a serious leakage in the clamp 30 to be tested.

[0045] Furthermore, in this embodiment, the clamp oil tightness detection device further includes a rotation drive mechanism for driving the clamp 30 to be tested to rotate.

[0046] When the clamp is tested for oil tightness, the rotation drive mechanism drives the clamp 30 to rotate so that the camera module can shoot and test the clamp 30 at 20360 degrees without blind spots, thereby improving the detection accuracy and avoiding missed detection.

[0047] Specifically, in this embodiment, the rotation drive mechanism includes a first rotary joint 110 and a second rotary joint 120 arranged on the oil circuit 10, and a first drive motor (not shown in the figure) and a second drive motor (not shown in the figure) for driving the first rotary joint 110 and the second rotary joint 120 to move and thereby drive the clamp to be tested 30 to rotate. The mover of the first rotary joint 110 is connected to one end of the clamp to be tested 30, and the mover of the second rotary joint 120 is connected to the other end of the clamp to be tested 30.

[0048] In this embodiment, the clamp oil tightness detection device further includes an X-axis motion module 130 and a Y-axis motion module 140 , the camera module 20 is disposed on the Y-axis motion module 140 , and the Y-axis motion module 140 is disposed on the X-axis motion module 130 .

[0049] In summary, the beneficial effects of the clamp oil tightness detection device of the present invention are:

[0050] The present invention adopts the above technical solution, including: an oil storage tank, a pressurizing mechanism, an oil circuit and a camera module; the oil storage tank is used to store an oil-soluble fluorescent leak detection agent, the oil storage tank is connected to the oil circuit, the clamp to be tested is arranged on the oil circuit and is connected to the oil circuit, the pressurizing mechanism is used to pressurize and maintain the oil-soluble fluorescent leak detection agent in the oil circuit, the camera module is set toward the clamp to be tested, and is used to photograph the leakage part of the clamp to be tested. It can safely, efficiently, conveniently and accurately detect and find all types of clamps and even extremely small leaks, and the cost is very low.

[0051] To achieve the above object, the present invention also proposes a method for detecting oil tightness of a clamp, which is applied to the above-mentioned clamp oil tightness detection device, such as Figure 6 As shown, a preferred embodiment of the clamp oil tightness detection method of the present invention includes the following steps:

[0052] Step S10, exhaust: inject the oil-soluble fluorescent leak detection agent into the oil circuit fluid system, start the system cycle, open the first electromagnetic ball valve and the fourth electromagnetic ball valve, close the second electromagnetic ball valve and the third electromagnetic ball valve, and exhaust the air in the oil circuit;

[0053] Step S20, pressurizing: closing the third electromagnetic ball valve and pressurizing the oil circuit to a preset pressure through the pressurizing mechanism;

[0054] Step S30, pressure holding test: after holding the pressure for a preset time, the flow sensor is used to determine whether the clamp to be tested is leaking oil;

[0055] Step S40, pressure relief: opening the second electromagnetic ball valve, the third electromagnetic ball valve, and the fourth electromagnetic ball valve, photographing the clamp to be tested by a camera module, and determining whether the clamp to be tested is leaking oil based on the photographed results;

[0056] Step S50, drying the oil circuit.

[0057] In this embodiment, the process before step S10 includes: preparing an oil-soluble fluorescent leak detection agent, wherein the oil-soluble fluorescent leak detection agent is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of aviation kerosene to the fluorescent agent is 500:1; the component of the fluorescent agent is LUYOR-6100 oil-based fluorescent leak detection agent; and the component of aviation kerosene is RP-3.

[0058] The clamp oil tightness detection method of the present invention can detect and discover all types of clamps and even extremely small leakage safely, efficiently, conveniently and accurately, and has low cost.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A clamp oil tightness detection device, characterized in that: The device comprises: an oil storage tank, a pressurizing mechanism, an oil circuit and a camera module; The oil storage tank is used to store oil-soluble fluorescent leak detection agent, the oil storage tank is connected to the oil circuit, the clamp to be tested is arranged on the oil circuit and is connected to the oil circuit, the pressurizing mechanism is used to pressurize and maintain the oil-soluble fluorescent leak detection agent in the oil circuit, and the camera module is set towards the clamp to be tested and is used to photograph the leakage part of the clamp to be tested.

2. The clamp oil tightness detection device according to claim 1, characterized in that: The oil-soluble fluorescent leak detection agent in the oil storage tank is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of the aviation kerosene to the fluorescent agent is 500:

1.

3. The clamp oil tightness detection device according to claim 2, characterized in that: The component of the fluorescent agent is LUYOR-6100 oily fluorescent leak detection agent; the component of the aviation kerosene is RP-3.

4. The clamp oil tightness detection device according to claim 3, characterized in that: The wavelength of the light source of the camera module is 365 nanometers.

5. The clamp oil tightness detection device according to claim 4, characterized in that: The oil circuit includes a first electromagnetic ball valve, a second electromagnetic ball valve, a third electromagnetic ball valve, a fourth electromagnetic ball valve, a pressure gauge, a one-way valve and a flow sensor; One end of the first electromagnetic ball valve is connected to the oil storage tank, and the other end is connected to the second electromagnetic ball valve, the pressure gauge and one end of the clamp to be tested through a four-way valve. The other end of the clamp to be tested is connected to one end of the one-way valve and one end of the fourth electromagnetic ball valve. The other end of the one-way valve is connected to the third electromagnetic ball valve, and the other end of the fourth electromagnetic ball valve is connected to the flow sensor.

6. The clamp oil tightness detection device according to claim 5, characterized in that: It also includes a rotation drive mechanism for driving the clamp to be tested to rotate.

7. The clamp oil tightness detection device according to claim 6, characterized in that: The rotary drive mechanism includes a first rotary joint and a second rotary joint arranged on the oil circuit, and a first drive motor and a second drive motor for driving the first rotary joint and the second rotary joint to move and thereby drive the clamp to be tested to rotate. The mover of the first rotary joint is connected to one end of the clamp to be tested, and the mover of the second rotary joint is connected to the other end of the clamp to be tested.

8. The clamp oil tightness detection device according to claim 7, characterized in that: It also includes an X-axis motion module and a Y-axis motion module. The camera module is arranged on the Y-axis motion module, and the Y-axis motion module is arranged on the X-axis motion module.

9. A method for detecting oil tightness of a clamp, characterized in that: The method is applied to the clamp oil tightness detection device according to claim 8, and the method comprises the following steps: Step S10, exhaust: inject the oil-soluble fluorescent leak detection agent into the oil circuit fluid system, start the system cycle, open the first electromagnetic ball valve and the fourth electromagnetic ball valve, close the second electromagnetic ball valve and the third electromagnetic ball valve, and exhaust the air in the oil circuit; Step S20, pressurizing: closing the third electromagnetic ball valve and pressurizing the oil circuit to a preset pressure through the pressurizing mechanism; Step S30, pressure holding test: after holding the pressure for a preset time, the flow sensor is used to determine whether the clamp to be tested is leaking oil; Step S40, pressure relief: opening the second electromagnetic ball valve, the third electromagnetic ball valve, and the fourth electromagnetic ball valve, photographing the clamp to be tested by a camera module, and determining whether the clamp to be tested is leaking oil based on the photographed results; Step S50, drying the oil circuit.

10. The method for detecting oil tightness of a clamp according to claim 9, wherein: The process before step S10 includes: preparing an oil-soluble fluorescent leak detection agent, wherein the oil-soluble fluorescent leak detection agent is a mixture of aviation kerosene and a fluorescent agent, and the volume ratio of aviation kerosene to the fluorescent agent is 500:1; the component of the fluorescent agent is LUYOR-6100 oil-based fluorescent leak detection agent; and the component of aviation kerosene is RP-3.

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