A quick connector plug-in and pull-out pressure-maintaining test system and method

Abstract

The present invention provides a plug-in and pull-out pressure-maintaining test system and method for quick connectors, which relate to the field of semiconductor technology. The plug-in and pull-out pressure-maintaining test system for quick connectors includes: a platform, a sub-body tooling fixture, a parent tooling fixture, a sub-body inflation device, a parent inflation device, and a test pipeline. The sub-body tooling fixture includes a sub-body tooling fixing mechanism and a first drive assembly, and the first drive assembly is connected to the sub-body tooling fixing mechanism. The plug-in and pull-out pressure-maintaining test system for quick connectors provided by an embodiment of the present invention realizes automatic plug-in and pull-out testing of quick connectors, completes plug-in and pull-out testing of the parent tooling and the sub-body tooling according to the set number of docking and separation, and performs static constant pressure specified time pressure maintenance and dynamic pressure specified time pressure maintenance testing of the sub-body tooling, the parent tooling, and the assembly, thereby improving the efficiency of the test and improving the accuracy of the test.

Description

Technical Field

[0001] The present invention relates to the field of semiconductor technology, and in particular to a plugging and unplugging pressure-maintaining test system and method for a quick connector. Background Art

[0002] In the field of semiconductor technology, the plug-in and pull-out tests of quick connectors are mainly carried out manually or with simple equipment. Manual plug-in and pull-out efficiency is low, and manual counting of times is prone to errors. The pressure holding test of quick connectors is mainly to ensure that the daughter tooling, parent tooling and assembly do not leak under specified pressure conditions. Generally, the daughter tooling, parent tooling and assembly after the plug-in and pull-out test are installed on a simple tooling, which is equipped with an ordinary mechanical pressure gauge. Nitrogen is added to the tooling, and the staff judges whether there is a leak in the daughter tooling, parent tooling and assembly by reading the readings of the mechanical pressure gauge before and after a period of time. This method is not only greatly affected by human factors, and manual readings are prone to deviations, but also judges whether there is a leak based only on pressure. The influencing factors are single and the judgment results are not accurate enough. Summary of the Invention

[0003] The present invention provides a plugging and unplugging pressure-maintaining test system for a quick connector, which is used to solve the problems of low efficiency and easy error in existing plugging and unplugging test technologies.

[0004] The present invention provides a plug-in and pull-out pressure-maintaining test system for a quick connector, comprising:

[0005] platform;

[0006] A sub-body tool fixing device, comprising a sub-body tool fixing mechanism and a first drive assembly, wherein the first drive assembly is connected to the sub-body tool fixing mechanism;

[0007] The parent tooling fixing device and the child tooling fixing device are sequentially arranged on the platform along the first direction, the parent tooling fixing device comprises a movable base, a parent outer ring fixing mechanism, a second drive assembly, a third drive assembly and a fourth drive assembly, as well as a parent tooling fixing mechanism and a first linear displacement mechanism arranged on the movable base, the movable base is arranged on the platform, the second drive assembly is connected to the parent tooling fixing mechanism, the parent tooling fixing mechanism is used to fix the parent tooling; the parent outer ring fixing mechanism is arranged on the first linear displacement mechanism, the parent outer ring fixing mechanism is used to fix the parent outer ring of the parent tooling, the first linear displacement mechanism is connected to the third drive assembly, the first linear displacement mechanism is used to drive the parent outer ring fixing mechanism to move along the first direction; the movable base is connected to the fourth drive assembly, the movable base is used to drive the parent tooling fixing mechanism and the first linear displacement mechanism to move along the first direction;

[0008] A child inflation device is provided on a side of the child tool fixture facing away from the parent tool fixture, the child inflation device comprising a child inflation interface, a second linear displacement mechanism, and a fifth drive assembly, the child inflation interface being provided on the second linear displacement mechanism, which is connected to the fifth drive assembly;

[0009] A mother inflation device is provided on a side of the mother tooling fixture away from the child tooling fixture, the mother inflation device comprising a mother inflation interface, a third linear displacement mechanism, and a sixth drive assembly, the mother inflation interface being provided on the third linear displacement mechanism, and the third linear displacement mechanism being connected to the sixth drive assembly;

[0010] The test pipeline is connected to the child body inflation interface and the parent body inflation interface respectively.

[0011] According to a quick connector plug-in and pull-out pressure-maintaining test system provided by an embodiment of the present invention, the first drive assembly, the second drive assembly, the third drive assembly, the fourth drive assembly, the fifth drive assembly and the sixth drive assembly are all servo motors.

[0012] According to a quick connector plugging and unplugging pressure-maintaining test system provided by an embodiment of the present invention, the first linear displacement mechanism, the second linear displacement mechanism, and the third linear displacement mechanism are all screw assemblies.

[0013] According to an embodiment of the present invention, a quick connector plugging and unplugging pressure-maintaining test system is provided, wherein the sub-body tool fixing mechanism, the parent tool fixing mechanism, and the parent outer ring fixing mechanism are all electric multi-jaw chucks.

[0014] According to an embodiment of the present invention, a quick connector plug-in and pull-out pressure-maintaining test system is provided, wherein the sub-body inflation device further includes a first pressure sensor and a first pressure relief valve respectively connected to the sub-body inflation interface, and a first temperature sensor arranged at the sub-body inflation interface.

[0015] According to an embodiment of the present invention, a plug-in and pull-out pressure-maintaining test system for a quick connector is provided, wherein the mother inflation device also includes a second pressure sensor and a second pressure relief valve respectively connected to the mother inflation interface, and a second temperature sensor arranged at the mother inflation interface.

[0016] According to an embodiment of the present invention, a plug-in and pull-out pressure-maintaining test system for a quick connector is provided, and the test pipeline includes a control valve, a first one-way valve, a first electric pressure-regulating valve, a second one-way valve and a second electric pressure-regulating valve. The air outlet of the control valve is connected to the air inlet of the first electric pressure-regulating valve and the air inlet of the second electric pressure-regulating valve, respectively. The air outlet of the first electric pressure-regulating valve is connected to the air inlet of the first one-way valve, and the air outlet of the first one-way valve is connected to the sub-body inflation interface; the air outlet of the second electric pressure-regulating valve is connected to the air inlet of the second one-way valve, and the air outlet of the second one-way valve is connected to the mother body inflation interface.

[0017] According to a quick connector plugging and unplugging pressure-maintaining test system provided by an embodiment of the present invention, the end face of the sub-body inflation interface is a first plane, and the first interface of the sub-body tooling is provided with a first sealing ring that seals with the first plane.

[0018] According to a quick connector plug-in and pressure-maintaining test system provided by an embodiment of the present invention, the end face of the mother inflation interface is a second plane, and the first interface of the mother tooling is provided with a second sealing ring that seals with the second plane.

[0019] The present invention also provides a method for testing the plugging and unplugging pressure-maintaining of a quick connector. The method is based on the plugging and unplugging pressure-maintaining test system for a quick connector described above, and the method comprises the following steps:

[0020] Step 10: Control the first drive assembly to drive the daughter tool fixing mechanism to clamp the daughter tool, and the second drive assembly to drive the mother tool fixing mechanism to clamp the mother tool;

[0021] Step 20, controlling the third driving assembly to drive the first linear displacement mechanism to move so that the outer ring of the matrix is ​​in an open position;

[0022] Step 30: Control the fourth driving assembly to drive the movable base to move toward the sub-body tooling, so that the parent tooling is plugged into the sub-body tooling;

[0023] Step 40, controlling the third driving assembly to drive the first linear displacement mechanism to move so that the outer ring of the matrix is ​​in a closed position;

[0024] Step 50: After the parent tooling and the child tooling are plugged in for a predetermined time, the third drive assembly is controlled to drive the first linear displacement mechanism to move so that the parent outer ring is in an open position;

[0025] Step 60: Control the fourth driving assembly to drive the movable base to move away from the child tooling, so that the parent tooling is separated from the child tooling;

[0026] Step 70 : After repeating steps 20 to 60 a predetermined number of times, supply air to the test pipeline to perform a pressure-maintaining test.

[0027] The plug-in and pull-out pressure-maintaining test system for quick connectors provided in an embodiment of the present invention realizes automatic plug-in and pull-out testing of quick connectors. According to the set number of docking and separation cycles, the plug-in and pull-out tests of the parent tooling and the child tooling are completed, as well as the static constant pressure specified time maintenance and dynamic pressure specified time maintenance tests of the child tooling, the parent tooling and the assembly are completed, thereby improving the test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic structural diagram of a child tooling and a parent tooling provided by an embodiment of the present invention in a separated state;

[0030] Figure 2 This is a structural diagram of a daughter tooling and a parent tooling provided by an embodiment of the present invention in a plugged-in state;

[0031] Figure 3 1 is a schematic structural diagram of a plug-in / plug-out pressure-maintaining test system for a quick connector provided by an embodiment of the present invention;

[0032] Figure 4 It is a structural schematic diagram of an electric multi-jaw chuck provided in an embodiment of the present invention.

[0033] Reference numerals:

[0034] PF, daughter tooling; PFB, daughter tooling fixing mechanism; SM1, first drive assembly; SF, parent tooling; SMB, parent tooling fixing mechanism; WH, parent outer ring; SMD, parent outer ring fixing mechanism; SM2, second drive assembly; SM3, third drive assembly; SM4, fourth drive assembly; YD1, mobile base; ZX1, first linear displacement mechanism; PIB, daughter inflation interface; ZX2, second linear displacement mechanism; SM5, fifth drive assembly; SIB, parent inflation interface; ZX3, Third linear displacement mechanism; SM6, sixth drive assembly; PT1, first pressure sensor; EBV1, first pressure relief valve; TS1, first temperature sensor; PT2, second pressure sensor; EBV2, second pressure relief valve; TS2, second temperature sensor; CV1, first check valve; ECV1, first electric pressure regulating valve; ECV2, second electric pressure regulating valve; CV2, second check valve; MOV, control valve; 10, first servo motor; 20, clamping block; 30, driving gear; 40, bearing outer ring gear. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0037] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0038] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0040] The plug-in and pull-out pressure-maintaining test system of the quick connector of the present invention is used for plug-in and pull-out pressure-maintaining test of the quick connector. Figure 1 This is a schematic diagram illustrating the structure of the child tooling and the parent tooling in a separated state provided by an embodiment of the present invention. Figure 2 The schematic diagram of the structure of the daughter tooling and the mother tooling provided in the embodiment of the present invention is shown as follows: Figure 1 and Figure 2 As shown, the quick connector includes a child tooling PF and a mother tooling SF. The child tooling PF has two interfaces. The first interface of the child tooling PF is used to connect with the child inflation interface PIB, and the second interface of the child tooling PF is used to plug and connect with the second interface of the mother tooling SF. The first interface of the mother tooling SF is used to connect with the mother inflation interface SIB. The outer periphery of the second interface of the mother tooling SF is provided with a mother outer ring WH. The mother outer ring WH is used to lock the child tooling PF to prevent the child tooling PF from separating from the mother tooling SF during use. The mother outer ring WH can be in the open position ( Figure 2 A position on the left side) and the closed position ( Figure 2 The tool can be switched between position B on the right side of the middle part to unlock and lock the sub-body tooling PF.

[0041] Figure 3 The schematic diagram of the structure of the plug-in and pressure-maintaining test system of the quick connector provided by the embodiment of the present invention is shown as follows: Figure 3As shown, the plug-in and pull-out pressure-maintaining test system of the quick connector includes a platform, a daughter body tooling fixture, a mother body tooling fixture, a daughter body inflation device, a mother body inflation device and a test pipeline.

[0042] Figure 4 The structural diagram of the electric multi-jaw chuck provided by the embodiment of the present invention is illustrated as follows. Figure 4 As shown, the sub-body fixture fixing device includes a sub-body fixture fixing mechanism PFB and a first drive assembly SM1. The first drive assembly SM1 is connected to the sub-body fixture fixing mechanism PFB. The sub-body fixture fixing mechanism PFB is used to clamp the sub-body fixture PF. The sub-body fixture fixing mechanism PFB is an electric multi-jaw chuck. The electric multi-jaw chuck can be an electric three-jaw chuck, or alternatively, a four-jaw chuck, or any other number of electric chucks. The first drive assembly SM1 is a first servo motor 10. The output shaft of the first servo motor 10 meshes with the bearing outer ring gear 40 of the electric three-jaw chuck via a driving gear 30. When the first servo motor 10 rotates, it drives the bearing outer ring gear 40 via the driving gear 30. The rotating bearing outer ring gear 40 drives the clamping block 20 radially toward or away from the center of the chuck, thereby clamping and releasing the sub-body fixture PF. Since the electric chuck is a conventional clamping assembly available on the market, its specific structure will not be described in detail here. The specific model of the electric chuck can be determined according to actual needs. Of course, the type of the sub-body fixture fixing mechanism PFB is not limited to the electric chuck, and can also be other clamping components.

[0043] The platform (not shown) is used to carry the parent tooling fixture and the child tooling fixture. The parent tooling fixture and the child tooling fixture are arranged on the platform in sequence along the first direction. The parent tooling fixture includes a movable base YD1, a parent outer ring fixing mechanism SMD, a second drive component SM2, a third drive component SM3 and a fourth drive component SM4, as well as a parent tooling fixture mechanism SMB and a first linear displacement mechanism ZX1 arranged on the mobile base YD1.

[0044] The parent tooling fixture SMB is used to clamp the parent tooling SF. The child tooling PF is aligned with the parent tooling SF. The second drive assembly SM2 is used to drive the opening and closing of the parent tooling fixture SMB, thereby loosening and clamping the parent tooling SF. The parent tooling fixture SMB is an electric multi-jaw chuck, but it can also be other clamping assemblies. The second drive assembly SM2 is a second servo motor connected to the parent tooling fixture SMB. The connection relationship between the second drive assembly SM2 and the parent tooling fixture SMB is the same as the connection relationship between the first drive assembly SM1 and the child tooling fixture PFB described above.

[0045] The outer ring fixing mechanism SMD of the matrix is ​​mounted on the first linear displacement mechanism ZX1. This mechanism is used to clamp the outer ring WH of the matrix tooling SF. The outer ring fixing mechanism SMD is an electric multi-jaw chuck, but it can also be another clamping component. The first linear displacement mechanism ZX1 is used to drive the outer ring fixing mechanism SMD to move in a first direction. The first linear displacement mechanism ZX1 is arranged along the first direction. The first linear displacement mechanism ZX1 comprises a first screw assembly, and the third drive assembly SM3 is a third servo motor. The output shaft of the third servo motor is connected to the screw of the first screw assembly. The housing of the first screw assembly is connected to the movable base YD1, and the slider of the first screw assembly is connected to the outer ring fixing mechanism SMD of the matrix.

[0046] When the third servo motor rotates, the third servo motor drives the screw of the first screw assembly to rotate, and the slider of the first screw assembly drives the mother outer ring fixing mechanism SMD to move along the first direction. The mother outer ring fixing mechanism SMD clamps the mother outer ring WH and moves along the first direction. By controlling the rotation direction of the third servo motor, the mother outer ring WH can move between the open position and the closed position.

[0047] The mobile base YD1 is used to support the outer ring fixing mechanism SMD of the mother body, the second drive assembly SM2, the third drive assembly SM3, the fourth drive assembly SM4, the mother tool fixing mechanism SMB, and the first linear displacement mechanism ZX1, and drives these mechanisms to move along a first direction. The mobile base YD1 includes a base and a fourth linear displacement mechanism. The base has a plate-like structure. The mother tool fixing mechanism SMB and the first linear displacement mechanism ZX1 are arranged on the upper surface of the base. The fourth linear displacement mechanism is a fourth screw assembly. The slider of the fourth screw assembly is connected to the bottom of the base, and the housing of the fourth screw assembly is connected to the platform. The fourth drive assembly SM4 is a fourth servo motor. The output shaft of the fourth servo motor is connected to the screw of the fourth screw assembly.

[0048] When the fourth servo motor drives the screw of the fourth screw assembly to rotate, the fourth screw assembly drives the movable base YD1 to move along the first direction. Since the parent tooling SF is clamped in the parent tooling fixing mechanism SMB, the through hole controls the rotation direction of the fourth servo motor, which can control the parent tooling SF to approach and move away from the child tooling PF, thereby realizing the plug-in connection or separation of the parent tooling SF and the child tooling PF.

[0049] The sub-body inflation device is arranged on the side of the sub-body tooling fixture facing away from the parent tooling fixture. The sub-body inflation device includes a sub-body inflation interface PIB, a second linear displacement mechanism ZX2 and a fifth drive assembly SM5. The sub-body inflation interface PIB is used to connect with the first interface of the sub-body tooling PF. The second linear displacement mechanism ZX2 is a second screw assembly, and the fifth drive assembly SM5 is a fifth servo motor. The output shaft of the fifth servo motor is connected to the screw of the second screw assembly. The sub-body inflation interface PIB is arranged on the slider of the second screw assembly. There are many ways to fix the sub-body inflation interface PIB. An electric multi-jaw chuck can be set on the slider of the second screw assembly to clamp the sub-body inflation interface PIB. The sub-body inflation interface PIB can also be fixed to the slider of the second screw assembly by a buckle or screw. It should be noted here that the second linear displacement mechanism ZX2 can be set on the platform or set separately. It is preferred that the second linear displacement mechanism ZX2 is set on the platform.

[0050] The child-body inflation interface (PIB) and the child-body tooling (PF) are aligned. When the fifth drive assembly (SM5) rotates the screw of the second screw assembly, the second screw assembly drives the child-body inflation interface (PIB) in a first direction. By controlling the rotation direction of the fifth servo motor, the child-body inflation interface (PIB) can be moved toward or away from the child-body tooling (PF), enabling the child-body inflation interface (PIB) to connect and disconnect with the child-body tooling (PF).

[0051] The mother inflation device is arranged on the side of the mother tooling fixture device facing away from the ion tooling fixture device. The mother inflation device includes a mother inflation interface SIB, a third linear displacement mechanism ZX3 and a sixth drive component SM6. The mother inflation interface SIB is arranged on the third linear displacement mechanism ZX3, and the third linear displacement mechanism ZX3 is connected to the sixth drive component SM6.

[0052] The third linear displacement mechanism ZX3 is the third screw assembly. The first screw assembly, the second screw assembly and the third screw assembly are all precision screw assemblies. The use of precision screw assemblies can effectively improve the accuracy of the linear displacement mechanism and prevent damage during the docking process between the sub-body tooling PF and the parent tooling SF. The sixth drive assembly SM6 is the sixth servo motor. The output shaft of the sixth servo motor is connected to the screw of the third screw assembly. The parent inflation interface SIB is set on the slider of the third screw assembly. There are many ways to fix the parent inflation interface SIB. The parent inflation interface SIB can be clamped by an electric multi-claw chuck, or it can be fixed by a buckle or screw. It should be noted here that the third linear displacement mechanism ZX3 can be set on the platform or set separately. It is preferred to set the third linear displacement mechanism ZX3 on the platform.

[0053] The parent inflation interface SIB and the parent tooling SF are aligned. When the sixth servo motor drives the screw of the third screw assembly to rotate, the third screw assembly drives the parent inflation interface SIB in the first direction. By controlling the rotation direction of the sixth servo motor, the parent inflation interface SIB can be controlled to move closer to or farther from the parent tooling SF, enabling the parent inflation interface SIB to connect and disconnect with the parent tooling SF.

[0054] The test pipeline is connected to the daughter body inflation interface PIB and the parent body inflation interface SIB respectively. The test pipeline is used to fill gas into the daughter body inflation interface PIB and the parent body inflation interface SIB respectively to perform pressure maintenance testing on the daughter body tooling PF, the parent tooling SF and the assembly.

[0055] The plug-in and pull-out pressure-maintaining test system for quick connectors provided in an embodiment of the present invention realizes automatic plug-in and pull-out testing of quick connectors. According to the set number of docking and separation cycles, the plug-in and pull-out tests of the parent tooling SF and the daughter tooling PF, as well as the static constant pressure holding time and dynamic pressure holding time tests of the daughter tooling PF, the parent tooling SF and the assembly are completed, thereby improving the efficiency of the test and improving the accuracy of the test.

[0056] In an embodiment of the present invention, the test pipeline includes a control valve (MOV), a first one-way valve (CV1), a first electric pressure-regulating valve (ECV1), a second one-way valve (CV2), and a second one-way valve (ECV2). The air inlet of the control valve (MOV) is connected to an air source, and the air outlet of the control valve (MOV) is connected to the air inlets of the first and second electric pressure-regulating valves (ECV1 and ECV2), respectively. The air outlet of the first electric pressure-regulating valve (ECV1) is connected to the air inlet of the first one-way valve (CV1), which is also connected to the child-unit inflation interface (PIB). The first one-way valve (CV1), the first electric pressure-regulating valve (ECV1), and the child-unit inflation interface (PIB) constitute a child-unit pressure-maintaining pipeline. The air outlet of the second one-way valve (ECV2) is connected to the air inlet of the second one-way valve (CV2), which is also connected to the parent-unit inflation interface (SIB). The second one-way valve (CV2), the second electric pressure-regulating valve (ECV2), and the parent-unit inflation interface (SIB) constitute a parent-unit pressure-maintaining pipeline. The control valve MOV is a manual valve used to open and cut off the gas circuit when the system is started and shut down.

[0057] In an embodiment of the present invention, the child-body inflation device further includes a first pressure sensor PT1 and a first pressure relief valve EBV1, each connected to the child-body inflation interface PIB, as well as a first temperature sensor TS1 located at the child-body inflation interface PIB. The first pressure sensor PT1 is used to detect the pressure in the child-body pressure-maintaining pipeline, the first pressure relief valve EBV1 serves as a pressure relief port for the child-body pressure-maintaining pipeline, and the first temperature sensor TS1 is used to detect the temperature in the child-body pressure-maintaining pipeline. By providing the first temperature sensor TS1 to detect the temperature in the child-body pressure-maintaining pipeline, the combined pressure and temperature values ​​can be used to determine the accuracy of the results during the pressure-maintaining test.

[0058] In an embodiment of the present invention, the mother inflation device further includes a second pressure sensor PT2 and a second pressure relief valve EBV2, each connected to the mother inflation interface SIB, as well as a second temperature sensor TS2 located at the mother inflation interface SIB. The second pressure sensor PT2 is used to detect the pressure in the mother pressure-maintaining line, the second pressure relief valve EBV2 serves as a pressure relief port for the mother pressure-maintaining line, and the second temperature sensor TS2 is used to detect the temperature in the mother pressure-maintaining line. By providing the second temperature sensor TS2 to monitor the temperature in the mother pressure-maintaining line, the accuracy of the results can be effectively improved by combining the pressure and temperature values ​​during the pressure-maintaining test.

[0059] In an embodiment of the present invention, the end surface of the child inflation interface PIB is a first plane, and the first interface of the child body fixture PF is provided with a first sealing ring that seals against the first plane. When the first interface of the child body fixture PF is connected to the first plane, the first sealing ring provides a seal, preventing leakage between the child inflation interface PIB and the first interface of the child body fixture PF.

[0060] In this embodiment of the present invention, the end surface of the mother inflation interface SIB is a second plane, and the first interface of the mother tooling SF is provided with a second sealing ring that seals against the second plane. When the first interface of the mother tooling SF is connected to the second plane, the second sealing ring provides a seal, preventing leakage between the mother inflation interface SIB and the first interface of the mother tooling SF.

[0061] The present invention also provides a plug-in and pull-out pressure-maintaining test method for a quick connector. The test method is based on the plug-in and pull-out pressure-maintaining test system for a quick connector described in any one of the above embodiments, and the test method includes the following steps:

[0062] Step 10: Control the first driving assembly SM1 to drive the daughter tool fixing mechanism PFB to clamp the daughter tool PF, and the second driving assembly SM2 to drive the parent tool fixing mechanism SMB to clamp the parent tool SF;

[0063] By controlling the rotation of the first drive assembly SM1, the first drive assembly SM1 drives the clamping block 20 of the child fixture fixing mechanism PFB toward the center of the chuck, thereby clamping the child fixture PF. By controlling the rotation of the second drive assembly SM2, the second drive assembly SM2 drives the clamping block 20 of the parent fixture fixing mechanism SMB toward the center of the chuck, thereby clamping the parent fixture SF. To prevent damage to the child fixture PF and the parent fixture SF during the insertion process, the child fixture PF and the parent fixture SF must be aligned.

[0064] Step 20: Control the third drive assembly SM3 to drive the first linear displacement mechanism ZX1 to move so that the outer ring WH of the matrix is ​​in the open position;

[0065] By controlling the third drive component SM3 to rotate forward, the third drive component SM3 drives the slider of the first linear displacement mechanism ZX1 to move along the first direction, and the slider drives the mother outer ring fixing mechanism SMD to move. The mother outer ring fixing mechanism SMD clamps the mother outer ring WH and moves along the first direction to position A, so that the mother outer ring WH is in the open position.

[0066] Step 30: Control the fourth driving assembly SM4 to drive the movable base YD1 to move toward the child tooling PF, so that the parent tooling SF is plugged into the child tooling PF.

[0067] By controlling the fourth driving assembly SM4 to rotate forward, the fourth driving assembly SM4 drives the movable base YD1 to move toward the direction close to the child tooling PF, so that the second interface of the child tooling PF is plugged and connected with the second interface of the parent tooling SF.

[0068] Step 40: Control the third drive assembly SM3 to drive the first linear displacement mechanism ZX1 to move so that the outer ring WH of the matrix is ​​in a closed position;

[0069] By controlling the third drive component SM3 to rotate in the opposite direction, the third drive component SM3 drives the slider of the first linear displacement mechanism ZX1 to move, and the slider drives the mother outer ring fixing mechanism SMD to move along the first direction. The mother outer ring fixing mechanism SMD clamps the mother outer ring WH and moves along the first direction to position B, so that the mother outer ring WH is in a closed position, locking the mother tooling SF and the child tooling PF together.

[0070] Step 50: After the parent tooling SF and the child tooling PF are plugged in for a predetermined time, the third drive assembly SM3 is controlled to drive the first linear displacement mechanism ZX1 to move so that the parent outer ring WH is in the open position;

[0071] The duration of the predetermined time is determined based on the specific test requirements and can be 2 seconds, 3 seconds, or longer. After the parent tooling SF and the child tooling PF are plugged in for a predetermined time, the third drive assembly SM3 is controlled to rotate in the forward direction. The third drive assembly SM3 drives the slider of the first linear displacement mechanism ZX1 to move. The slider drives the parent outer ring fixing mechanism SMD to move along the first direction. The parent outer ring fixing mechanism SMD clamps the parent outer ring WH and moves it along the first direction toward position A, so that the parent outer ring WH is in the open position, thereby releasing the lock on the child tooling PF.

[0072] Step 60: Control the fourth driving assembly SM4 to drive the movable base YD1 to move away from the child tooling PF, so that the parent tooling SF is separated from the child tooling PF.

[0073] By controlling the fourth drive component SM4 to rotate in the opposite direction, the fourth drive component SM4 drives the movable base YD1 to move away from the sub-body tooling PF, so that the second interface of the sub-body tooling PF is separated from the second interface of the parent tooling SF. At this time, the parent tooling SF and the sub-body tooling PF complete a plug-in process.

[0074] Step 70 : After repeating steps 20 to 60 a predetermined number of times, supply air to the test pipeline to perform a pressure-maintaining test.

[0075] The number of scheduled times is determined according to the test needs. After completing the scheduled number of plug-in and pull-out tests, if the sub-body tooling PF and the parent tooling SF are in the unplugged state, the sub-body tooling PF and the parent tooling SF can be pressure-maintained tested separately; if the sub-body tooling PF and the parent tooling SF are in the plugged-in state, the combined body pressure-maintained test can be performed.

[0076] The pressure holding test is used to test the airtightness of quick connectors after a large number of plugging and unplugging cycles. The principle of the pressure holding test is as follows:

[0077] The gas residual rate of the system can be calculated based on the detection values ​​of the first pressure sensor PT1 and the first temperature sensor TS1 twice, and the detection values ​​of the second pressure sensor PT2 and the second temperature sensor TS2 twice. If the gas residual rate is less than the set standard value, it means that there is a leak in the system and the air tightness of the quick connector is unqualified. The gas residual rate Δ can be calculated using the following formula (1):

[0078]

[0079] Among them, P1 represents the pressure value detected by the first pressure sensor PT1 / the second pressure sensor PT2 at the moment when inflation is completed, P2 represents the pressure value detected by the first pressure sensor PT1 / the second pressure sensor PT2 after a predetermined time has passed since the moment when inflation is completed, t1 represents the temperature value detected by the first temperature sensor TS1 / the second temperature sensor TS1 at the moment when inflation is completed, and t2 represents the temperature value detected by the first temperature sensor TS1 / the second temperature sensor TS1 after a predetermined time has passed since the moment when inflation is completed.

[0080] The pressure holding test can be performed on the daughter tooling PF and the parent tooling SF separately, or they can be tested together.

[0081] A separate pressure-maintaining test is performed on the sub-body fixture (PF): the first pressure relief valve (EBV1) switches from normally open to closed. The fifth drive assembly (SM5) drives the sub-body inflation port (PIB) toward the sub-body fixture (PF) in the first direction, causing the end face of the sub-body inflation port (PIB) to abut and seal against the first interface of the sub-body fixture (PF). Gas passes through the first one-way valve (CV1) and the first electric pressure regulating valve (ECV1) to pressurize the sub-body pressure-maintaining pipeline. The pressure is fed back to the control system via the first pressure sensor (PT1). After the pressure is maintained for a predetermined period, the first pressure relief valve (EBV1) switches back to normally open, depressurizing the sub-body pressure-maintaining pipeline.

[0082] A separate pressure-maintaining test is conducted on the mother body: the second pressure relief valve EBV2 switches from normally open to closed. The sixth drive assembly SM6 drives the mother body inflation port SIB in a first direction toward the mother body fixture SF. The first interface of the mother body fixture SF abuts and seals the end face of the mother body inflation port SIB. Gas passes through the second one-way valve CV2 and the second electric pressure regulating valve ECV2, sequentially charging the mother body pressure-maintaining pipeline. The pressure value is fed back to the control system via the second pressure sensor PT2. After the pressure is maintained for a predetermined period, the second pressure relief valve EBV2 switches back to normally open, depressurizing the mother body pressure-maintaining pipeline.

[0083] The assembly undergoes a pressure test: The control system opens only the first check valve (CV1) or the second check valve (CV2). The control system collects data from various temperature and pressure sensors through a data acquisition module and, through internal airtightness testing, determines in real time whether the pipeline is leaking. If a leak occurs before the set time, the system indicates it on the display, and a colored light and buzzer sound simultaneously.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A quick connector plug-in and pull-out pressure-maintaining test system, characterized in that: include: platform; A sub-body tool fixing device, comprising a sub-body tool fixing mechanism and a first drive assembly, wherein the first drive assembly is connected to the sub-body tool fixing mechanism; The parent tooling fixing device and the child tooling fixing device are sequentially arranged on the platform along the first direction, the parent tooling fixing device comprises a movable base, a parent outer ring fixing mechanism, a second drive assembly, a third drive assembly and a fourth drive assembly, as well as a parent tooling fixing mechanism and a first linear displacement mechanism arranged on the movable base, the movable base is arranged on the platform, the second drive assembly is connected to the parent tooling fixing mechanism, the parent tooling fixing mechanism is used to fix the parent tooling; the parent outer ring fixing mechanism is arranged on the first linear displacement mechanism, the parent outer ring fixing mechanism is used to fix the parent outer ring of the parent tooling, the first linear displacement mechanism is connected to the third drive assembly, the first linear displacement mechanism is used to drive the parent outer ring fixing mechanism to move along the first direction; the movable base is connected to the fourth drive assembly, the movable base is used to drive the parent tooling fixing mechanism and the first linear displacement mechanism to move along the first direction; A child inflation device is provided on a side of the child tool fixture facing away from the parent tool fixture, the child inflation device comprising a child inflation interface, a second linear displacement mechanism, and a fifth drive assembly, the child inflation interface being provided on the second linear displacement mechanism, which is connected to the fifth drive assembly; A mother inflation device is provided on a side of the mother tooling fixture away from the child tooling fixture, the mother inflation device comprising a mother inflation interface, a third linear displacement mechanism, and a sixth drive assembly, the mother inflation interface being provided on the third linear displacement mechanism, and the third linear displacement mechanism being connected to the sixth drive assembly; A test pipeline is respectively connected to the sub-body inflation interface and the parent body inflation interface; the test pipeline includes a control valve, a first one-way valve, a first electric pressure-regulating valve, a second one-way valve and a second electric pressure-regulating valve, the air outlet of the control valve is respectively connected to the air inlet of the first electric pressure-regulating valve and the air inlet of the second electric pressure-regulating valve, the air outlet of the first electric pressure-regulating valve is connected to the air inlet of the first one-way valve, and the air outlet of the first one-way valve is connected to the sub-body inflation interface; the air outlet of the second electric pressure-regulating valve is connected to the air inlet of the second one-way valve, and the air outlet of the second one-way valve is connected to the parent body inflation interface.

2. The plug-in and pull-out pressure-maintaining test system for quick connectors according to claim 1, characterized in that: The first drive assembly, the second drive assembly, the third drive assembly, the fourth drive assembly, the fifth drive assembly and the sixth drive assembly are all servo motors.

3. The plug-in and pull-out pressure-maintaining test system for quick connectors according to claim 1, characterized in that: The first linear displacement mechanism, the second linear displacement mechanism, and the third linear displacement mechanism are all screw rod assemblies.

4. The plug-in and pull-out pressure-maintaining test system for quick connectors according to claim 1, characterized in that: The sub-body tool fixing mechanism, the parent body tool fixing mechanism and the parent body outer ring fixing mechanism are all electric multi-jaw chucks.

5. The plug-in and pull-out pressure-maintaining test system for quick connectors according to any one of claims 1 to 4, characterized in that: The sub-body inflation device further includes a first pressure sensor and a first pressure relief valve respectively connected to the sub-body inflation interface, and a first temperature sensor provided at the sub-body inflation interface.

6. The plug-in and pull-out pressure-maintaining test system for a quick connector according to any one of claims 1 to 4, characterized in that: The mother inflation device also includes a second pressure sensor and a second pressure relief valve respectively connected to the mother inflation interface, and a second temperature sensor arranged at the mother inflation interface.

7. The plugging and unplugging pressure-maintaining test system for a quick connector according to any one of claims 1 to 4, characterized in that: The end surface of the sub-body inflation interface is a first plane, and the first interface of the sub-body tooling is provided with a first sealing ring that seals with the first plane.

8. The plugging and unplugging pressure-maintaining test system for a quick connector according to any one of claims 1 to 4, characterized in that: The end face of the mother inflation interface is a second plane, and the first interface of the mother tooling is provided with a second sealing ring that seals with the second plane.

9. A plug-in and pull-out pressure-maintaining test method for a quick connector, the test method being based on the plug-in and pull-out pressure-maintaining test system for a quick connector according to any one of claims 1 to 8, characterized in that: The test method comprises the following steps: Step 10: Control the first drive assembly to drive the daughter tool fixing mechanism to clamp the daughter tool, and the second drive assembly to drive the mother tool fixing mechanism to clamp the mother tool; Step 20, controlling the third driving assembly to drive the first linear displacement mechanism to move so that the outer ring of the matrix is ​​in an open position; Step 30: Control the fourth driving assembly to drive the movable base to move toward the sub-body tooling, so that the parent tooling is plugged into the sub-body tooling; Step 40, controlling the third driving assembly to drive the first linear displacement mechanism to move so that the outer ring of the matrix is ​​in a closed position; Step 50: After the parent tooling and the child tooling are plugged in for a predetermined time, the third drive assembly is controlled to drive the first linear displacement mechanism to move so that the parent outer ring is in an open position; Step 60: Control the fourth driving assembly to drive the movable base to move away from the child tooling, so that the parent tooling is separated from the child tooling; Step 70 : After repeating steps 20 to 60 a predetermined number of times, supply air to the test pipeline to perform a pressure-maintaining test.

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