CDC valve testing device

Abstract

The invention discloses a CDC valve testing device, and relates to the field of built-in valves of electric automobiles. The CDC valve testing device comprises a machine base and a conveying belt assembly, a feeding station, at least one testing station and a discharging station are sequentially arranged on the circumferential side of the conveying belt assembly in the circumferential direction of the conveying belt assembly, the testing station is provided with a testing assembly, and the testing assembly comprises a testing base, two runners, a first probe and a first driving module; one ends of the two flow channels are both communicated with the oil supply assembly, the other ends of the two flow channels are used for being communicated with two valve ports of the CDC valve respectively, a first detection module is arranged on the oil supply assembly, the first probe can abut against a cable of the CDC valve in the moving stroke of the first probe, and the rear end of the first probe is communicated with a second detection module. According to the testing device, the performance of the CDC valve can be rapidly and accurately detected, and the detection precision and the detection efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of built-in valves of electric vehicles, and in particular to a CDC valve testing device. Background Art

[0002] As the global automotive industry transitions to electrification, electric vehicles (EVs), with their advantages of zero emissions, low noise, and rapid torque response, have become a key development direction in the automotive market. As a key component of EVs, continuous damping control systems are becoming increasingly widely used.

[0003] The Continuous Damping Control System (CDC) is an advanced active damping technology used in automotive suspension systems. Using the CDC valve as its core component, it uses sensors to monitor the vehicle's driving status in real time, such as body acceleration, wheel acceleration, speed, and steering angle, and transmits this data to a central control unit. The central control unit analyzes and processes the collected data and issues control commands to the CDC valve, enabling real-time and precise adjustment of the shock absorber's damping force.

[0004] To ensure the performance of a shock absorption system, a CDC valve is typically tested before it is installed. However, the existing CDC valve testing process is cumbersome, requiring frequent manual intervention and adjustment of test parameters, resulting in low test efficiency and accuracy. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present application provides a CDC valve testing device with high testing accuracy and no need for manual intervention.

[0006] The CDC valve testing device provided in this application adopts the following technical solution: A CDC valve testing device comprises a machine base, an annular conveyor belt assembly arranged on the machine base, a loading station, at least one test station and an unloading station arranged in sequence around the circumference of the conveyor belt assembly, the test station being provided with a test assembly, the test assembly comprising a test seat for carrying the CDC valve, two flow channels opened in the test seat, a first probe movable in a direction approaching or away from the test seat, and a first driving module for driving the first probe to move, one end of the two flow channels being connected to an oil supply assembly, and the other end being respectively used to communicate with the two valve ports of the CDC valve, a first detection module being provided on the oil supply assembly, the first probe being able to conflict with the cable of the CDC valve during its moving stroke, and the rear end of the first probe being connected to a second detection module.

[0007] By adopting the above technical solution, the conveyor belt assembly can send the CDC valve to the test station. The oil supply assembly and the first probe can respectively energize and supply oil to the CDC valve. The first detection module and the second detection module are respectively used to detect the parameters of the oil flowing in and out of the CDC valve and the parameters of the current, so that the performance of the CDC valve can be detected quickly and accurately, improving the detection accuracy and detection efficiency.

[0008] Preferably, the CDC valve is installed on a tooling, the tooling is carried on the test seat, the tooling is provided with a wire winding post and a wire socket, the cable is wound around the wire winding post and its end is inserted into the wire socket, and the first probe is located on one side of the test seat in the horizontal direction and can be correctly docked with the wire socket during its moving stroke.

[0009] By adopting the above technical solution, the cable on the CDC valve can be wound around the wire winding post to prevent the cable from interfering with the detection of the CDC valve; at the same time, through the setting of the wire socket, it is convenient for the first probe to be docked with the cable.

[0010] Preferably, the test assembly further includes a test frame, a clamping seat that is liftable and provided on the test frame, a second driving module for driving the clamping seat to lift, a servo boosting module provided at the bottom of the clamping seat, and a sleeve connected to the output end of the servo boosting module. A relief groove is provided on the side wall of the sleeve. A valve post for installing the cable is provided on the CDC valve. The sleeve can be sleeved on the valve post during the lifting stroke of the clamping seat, and the cable is accommodated in the relief groove.

[0011] By adopting the above technical solution, the clamping seat can press the CDC valve tightly on the test seat through the cooperation of the sleeve and the servo boosting module to ensure the relative sealing between the CDC valve and the test seat, facilitating the flow of oil between the test seat and the CDC valve.

[0012] Preferably, at least one first locking post is further provided on the clamping seat. A locking opening is provided at the lower end of the first locking post. At least one side of the test seat is provided with a locking seat corresponding to the first locking post. A locking groove is provided at the upper part of the locking seat. A second locking post that is slidably provided along the horizontal direction and a third driving module for driving the second locking post to slide are further provided on the locking seat. The first locking post can be inserted into the locking groove during the lifting stroke of the clamping seat, and the second locking post can penetrate into the locking groove and be inserted opposite to the locking opening.

[0013] By adopting the above technical solution, the clamping seat can be relatively locked with the test seat under the cooperation of the first locking post, the locking groove, the second locking post and the locking opening, further improving the sealing performance between the CDC valve and the test seat.

[0014] Preferably, the test socket includes a socket body and a mounting table supported at the bottom of the socket body. An installation groove for accommodating the tooling is formed in the socket body. The two flow channels are formed in the mounting table and communicate with the installation groove. A pressure sensor communicating with the flow channels is further arranged on the mounting table.

[0015] Preferably, the installation groove has a first groove wall away from the first probe and a second groove wall close to the first probe. A positioning strip is annularly arranged on the peripheral side of the notch of the installation groove. The positioning strip slopes downward along the direction from the first groove wall to the second groove wall. A sliding groove is formed in the positioning strip. A roller is arranged on one side of the tooling where the wire plug seat is installed. The roller is in rolling fit with the sliding groove.

[0016] By adopting the above technical solution, when the tooling is placed into the installation groove, the tooling can rotate relative to the installation groove under the rolling fit of the roller and the positioning strip, so that the side of the tooling where the wire plug seat is installed can rotate to the position of the second groove wall. At this time, the wire plug seat is located at the position facing the first probe, which is convenient for the subsequent docking of the first probe and the wire plug seat.

[0017] Preferably, a plurality of through holes are formed in the circumferential direction of the groove wall of the installation groove. A movable ball is arranged in each through hole. In their respective movable strokes, the plurality of balls can press against the peripheral side of the tooling or separate from the tooling.

[0018] By adopting the above technical solution, when the tooling is placed into the installation groove, the plurality of balls can press against the peripheral side of the tooling to realize the locking of the tooling in the installation groove, and improve the installation strength of the tooling.

[0019] Preferably, a sliding cavity is formed in the socket body. The sliding cavity surrounds the periphery of the installation groove and communicates with the through holes. An orifice communicating with the through holes is formed on the wall of the sliding cavity. A driving ring capable of sliding in the vertical direction is arranged in the sliding cavity. In its sliding stroke, the driving ring can block the orifice or separate from the orifice.

[0020] By adopting the above technical solution, the plurality of balls can be pressed against and separated from the tooling during the sliding process of the piston, which is convenient for the quick locking and unlocking of the tooling in the installation groove.

[0021] Preferably, a driving cavity communicating with the sliding cavity is formed in the lower part of the socket body. A slidable piston is arranged in the driving cavity. The piston is coaxially connected with the driving ring. Two sliding gaps are respectively formed between the two ends of the sliding direction of the piston and the driving cavity. A spring is arranged in one of the two sliding gaps, and the other communicates with an external air source.

[0022] By adopting the above technical solution, an external air source is used to input compressed air, and the piston can reciprocate under the action of the compressed air and the elastic member, eliminating the need to set up a complex driving mechanism, improving work efficiency and saving costs at the same time.

[0023] Preferably, a pre-inspection station is further provided between the loading station and the testing station, and an NG station is further provided between the testing station and the unloading station. The pre-inspection station is provided with a third detection module for detecting the winding condition of the cable on the winding column and a fourth detection module for detecting the resistance performance of the CDC valve. The NG station is provided with an NG discharge assembly.

[0024] In summary, the present invention includes at least one of the following beneficial technical effects: The conveyor belt assembly can send the CDC valve to the testing station. The oil supply assembly and the first probe can respectively energize and supply oil to the CDC valve. The first detection module and the second detection module are respectively used to detect the parameters of the oil flowing in and out of the CDC valve and the parameters of the current, so as to quickly and accurately detect the performance of the CDC valve, improving the detection accuracy and detection efficiency. " Description of the Drawings

[0025] Figure 1 is a top view of the CDC valve testing device in an embodiment of the present application; Figure 2 is a schematic structural diagram of the testing assembly in an embodiment of the present application; Figure 3 is a schematic structural diagram of the testing seat in an embodiment of the present application; Figure 4 is a longitudinal sectional view of the testing seat in an embodiment of the present application.

[0026] Reference signs in the drawings: 1. Base; 2. Conveyor belt assembly; 3. Testing assembly; 3a. Testing seat; 3a1. Seat body; 3a2. Installation table; 3a3. Installation groove; 3b. Flow channel; 3c. First probe; 3d. First driving module; 3e. Testing frame; 3f. Clamping seat; 3g. Second driving module; 3h. Servo boosting module; 3i. Sleeve; 3j. Relief groove; 3k. First locking post; 3l. Locking port; 3m. Locking seat; 3n. Locking groove; 3o. Second locking post; 3p. Third driving module; 3q. Pressure sensor; 3r. Alignment strip; 3s. Chute; 3t. Through hole; 3u. Ball; 3v. Sliding cavity; 3w. Driving ring; 3w1. Bearing groove; 3x. Driving cavity; 3y. Piston; 3z. Spring; 4. Oil supply assembly; 5. Tooling; 5a. Wire winding post; 5b. Wiring socket; 5c. Roller; 5d. Fitting groove; 6. Third detection module; 7. Fourth detection module; 7a. Second probe; 7b. Fifth driving module; 8. NG discharge assembly; 9. Manual loading table; 10. Scanner; 11. Handling assembly; 12. Manual unloading table; 13. Pipeline; 100. CDC valve; 100a. Cable; 100b. Valve post. Detailed implementation mode

[0027] The following is further described in detail in conjunction with the attached Figures 1-4 This invention is further described in detail.

[0028] In the description of this invention, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing this invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to this invention.

[0029] See Figure 1 As shown, a CDC valve testing device is shown, including a base 1 and an annular conveyor belt assembly 2 horizontally arranged on the base 1. The conveyor belt assembly 2 includes four annularly arranged pulleys, a belt drivingly connected to the four pulleys, and a motor for driving one of the pulleys to rotate. Around the circumference of the conveyor belt assembly 2, a loading station, a pre-inspection station, six testing stations, an NG station, and an unloading station are arranged in sequence along its circumference. Among them, the conveyor belt assembly 2 is in a rectangular ring shape. The loading station and the unloading station are located at one long side thereof, the six testing stations are located at the other long side thereof and are arranged along the extension direction of its long side, and the pre-inspection station and the NG station are respectively located at the two short sides thereof.

[0030] In this embodiment, the loading station has a manual loading table 9, on which a barcode scanner 10 is provided. The barcode scanner 10 is a prior art device used to scan the CDC valve 100, facilitating subsequent data recording of the CDC valve 100. Workers assemble the CDC valve 100 onto the tooling 5 on the manual loading table 9. The tooling 5 is provided with a wire winding post 5a and a wire socket 5b. During assembly, the cable 100a of the CDC valve 100 is wound around the wire winding post 5a and its end is inserted into the wire socket 5b.

[0031] The pre-inspection station is located downstream of the loading station and is provided with a third detection module 6 for detecting the winding condition of the cable 100a around the wire winding post 5a and a fourth detection module 7 for detecting the resistance performance of the CDC valve 100. The third detection module 6 is a camera suspended above the conveyor belt assembly 2, which is used to photograph the winding condition of the cable 100a to confirm whether the staff has completed the winding of the cable 100a; the fourth detection module 7 is located outside the conveyor belt assembly and includes a second probe 7a movably arranged along the horizontal direction and a fifth driving module 7b for driving the second probe 7a to move. The fifth driving module 7b is a cylinder. The rear end of the second probe 7a is connected to a resistance tester, and it can be docked with the cable 100a during movement to detect the resistance of the CDC valve 100 through the resistance tester, ensuring that the CDC valve 100 to be tested can operate normally after being powered on.

[0032] Six testing stations are arranged in sequence along the conveying direction of the conveyor belt assembly 2, and each testing station is respectively provided with a testing component 3. The testing component 3 is located inside the conveyor belt assembly 2.

[0033] Combined Figures 2-4 As shown, the testing component 3 includes a test seat 3a for carrying the CDC valve 100, two flow channels 3b opened in the test seat 3a, a first probe 3c movably arranged along the direction close to or away from the test seat 3a, and a first driving module 3d for driving the first probe 3c to move. One end of each of the two flow channels 3b is connected to the oil supply component 4, and the other ends are respectively used to communicate with the two valve ports of the CDC valve 100. The oil supply component 4 is provided with a first detection module (not shown in the figure). The first probe 3c can be in contact with the cable 100a during its moving stroke, and the rear end of the first probe 3c is connected to a second detection module (not shown in the figure).

[0034] Among them, the first probe 3c is located on one side of the test seat 3a in the horizontal direction and can be correctly docked with the wire socket 5b during its moving stroke. The first driving module 3d is a cylinder; the oil supply component 4 is a prior art device, which includes an oil barrel and a hydraulic system, and its specific structure will not be elaborated; the first detection module includes fluid testing instruments such as a flowmeter and a flow velocity meter in the prior art, which can be flexibly selected according to specific testing needs; the second detection module is a current tester.

[0035] During testing, the conveyor belt assembly 2 sends the CDC valve 100 to the testing station. The oil supply assembly 4 and the first probe 3c can respectively energize and supply oil to the CDC valve 100. The first detection module and the second detection module are respectively used to detect the parameters of the oil flowing in and out of the CDC valve 100 and the parameters of the current, so as to quickly and accurately detect the performance of the CDC valve 100, improving the detection accuracy and detection efficiency.

[0036] In this embodiment, a handling assembly 11 is further arranged between the conveyor belt assembly 2 and the testing station. The handling assembly 11 includes a handling frame, a first manipulator movably arranged on the handling frame along the horizontal and vertical directions, and a fourth driving module for driving the movement of the first manipulator. The handling frame extends along the arrangement direction of the six testing stations. The first manipulator can move along the arrangement direction of the six testing stations, the direction from the conveyor belt assembly 2 to the testing station, and the vertical direction. The fourth driving module includes a linear motor for driving the first manipulator to translate and a cylinder for driving the first manipulator to lift.

[0037] In this embodiment, as shown in Figure 2 the testing assembly 3 further includes a testing frame 3e, a clamping seat 3f movably arranged on the testing frame 3e, a second driving module 3g for driving the clamping seat 3f to move up and down, a servo booster module 3h arranged at the bottom of the clamping seat 3f, and a sleeve 3i connected to the output end of the servo booster module 3h. A relief groove 3j is formed in the side wall of the sleeve 3i. A valve post 100b for installing a cable 100a is arranged on the CDC valve 100. The sleeve 3i can be sleeved on the valve post 100b during the lifting stroke of the clamping seat 3f, and the cable 100a is accommodated in the relief groove 3j. Among them, the second driving module 3g is a cylinder, and the servo booster module 3h is a boosting technology driven by a servo motor in the prior art, and its specific structure and principle will not be elaborated. The clamping seat 3f can press the CDC valve 100 tightly on the testing seat 3a through the cooperation of the sleeve 3i and the servo booster module 3h to ensure the relative sealing between the CDC valve 100 and the testing seat 3a, facilitating the flow of oil between the testing seat 3a and the CDC valve 100.

[0038] In this embodiment, two first locking columns 3k are further provided on the crimping seat 3f. The two first locking columns 3k are respectively located on both sides of the sleeve 3i in the horizontal direction. A locking opening 3l is respectively formed through the lower end of each first locking column 3k along the horizontal direction. Locking seats 3m corresponding to the two first locking columns 3k are provided on both sides of the test seat 3a. A locking groove 3n is respectively formed in the upper part of each locking seat 3m. A second locking column 3o slidably arranged along the horizontal direction and a third driving module 3p for driving the second locking column 3o to slide are further provided on the locking seat 3m. The third driving module 3p is a cylinder, which can drive the second locking column 3o to penetrate into the locking groove 3n along the horizontal direction. When the crimping seat 3f descends, the first locking column 3k can be inserted into the locking groove 3n during the lifting and lowering stroke of the crimping seat 3f, and the second locking column 3o can penetrate into the locking groove 3n and be inserted opposite to the locking opening 3l. In this way, the crimping seat 3f can be relatively locked with the test seat 3a under the cooperation of the first locking column 3k, the locking groove 3n, the second locking column 3o and the locking opening 3l, further improving the sealing performance between the CDC valve 100 and the test seat 3a.

[0039] In this embodiment, as shown in Figures 3-4 FIG. 5, the test seat 3a includes a seat body 3a1 and a mounting table 3a2 supported on the bottom of the seat body 3a1. The mounting table 3a2 is fixedly connected to the test frame 3e. An installation groove 3a3 for accommodating the tooling 5 is formed in the seat body 3a1. Two flow channels 3b are formed in the mounting table 3a2 and communicated with the installation groove 3a3. A pressure sensor 3q communicated with the flow channel 3b is further provided on the mounting table 3a2. The pressure sensor 3q is used to detect the oil pressure in the flow channel 3b.

[0040] In this embodiment, as shown in Figure 4 FIG. 6, the installation groove 3a3 has a first groove wall away from the first probe 3c and a second groove wall close to the first probe 3c. A positioning strip 3r is annularly arranged on the peripheral side of the notch of the installation groove 3a3. The positioning strip 3r slopes downward along the direction from the first groove wall to the second groove wall. A sliding groove 3s is formed in the positioning strip 3r. A roller 5c is provided on one side of the tooling 5 where the wire plugging seat 5b is installed, and a balance weight is provided on the opposite side. The roller 5c is in rolling cooperation with the sliding groove 3s, and the balance weight is lapped on the positioning strip 3r.

[0041] When the tooling 5 is placed into the installation groove 3a3, the roller 5c can roll obliquely on the positioning strip 3r under the action of gravity. The tooling 5 can relatively rotate with the installation groove 3a3 under the rolling cooperation of the roller 5c and the positioning strip 3r, so that the side of the tooling 5 where the wire plugging seat 5b is installed rotates to the second groove wall, realizing the positioning of the wire plugging seat 5b. At this time, the wire plugging seat 5b is just located at the position facing the first probe 3c, facilitating the subsequent docking of the first probe 3c and the wire plugging seat 5b.

[0042] In some other embodiments, a positioning groove for accommodating the roller 5c is further formed at the bottom of the lowest point of the sliding groove 3s, and a magnet (not shown in the figure) is arranged in the positioning groove. The roller 5c is made of a metal material. When the tooling 5 is placed into the installation groove 3a3, the magnet can attract the roller 5c, enabling the roller 5c to roll more quickly along the sliding groove 3s into the positioning groove to achieve the correct positioning of the wire plug 5b.

[0043] In this embodiment, referring again to Figure 4 As shown, a plurality of through holes 3t are formed in the circumferential direction of the groove wall of the installation groove 3a3 around its own circumference. The plurality of through holes 3t are located below the positive positioning strip 3r. A movable ball 3u is arranged in the through hole 3t. A mating groove 5d is annularly arranged on the circumferential side of the tooling 5. The mating groove 5d is located below the roller 5c. The plurality of balls 3u can press against the mating groove 5d or separate from the mating groove 5d during their respective moving strokes. When the tooling 5 is placed into the installation groove 3a3, the plurality of balls 3u can press against the circumferential side of the tooling 5 to achieve the locking of the tooling 5 in the installation groove 3a3, improving the installation strength of the tooling 5.

[0044] In this embodiment, a sliding cavity 3v and a driving cavity 3x which are arranged vertically and communicate with each other are formed in the seat body 3a1. The sliding cavity 3v surrounds the circumference of the installation groove 3a3 and communicates with the through hole 3t. The driving cavity 3x is located below the sliding cavity 3v. The wall of the sliding cavity 3v has an orifice communicating with the through hole 3t. A driving ring 3w capable of sliding in the vertical direction is arranged in the sliding cavity 3v. A piston 3y which is slidably arranged in the vertical direction is arranged in the driving cavity 3x. The piston 3y is coaxially connected with the driving ring 3w. The piston 3y can drive the driving ring 3w to slide. The driving ring 3w can block the orifice or separate from the orifice during its sliding stroke. When the driving ring 3w slides upward, it can gradually block the orifice and squeeze the balls 3u inward, causing the plurality of balls 3u to press inward against the mating groove 5d, thereby realizing the locking of the tooling 5. When the driving ring 3w slides downward, it can disengage from the orifice, and the balls 3u can separate from the mating groove 5d after losing the extrusion force, thereby realizing the unlocking of the tooling 5.

[0045] An annular bearing groove 3w1 is further formed on the inner side of the upper end of the driving ring 3w. When the driving ring 3w slides downward, the balls 3u disengaging from the orifice can be carried in the bearing groove 3w1. Two pipelines 13 which extend in the vertical direction and pass through the piston are also arranged in the sliding cavity 3v and the driving cavity 3x. Each pipeline 13 is respectively communicated with the corresponding flow channel 3b and the valve port at both ends.

[0046] Further, two sliding gaps are respectively formed between the two end portions of the piston 3y in the sliding direction and the driving cavity 3x. The two sliding gaps include a first gap and a second gap arranged vertically. The first gap communicates with an external air source, which is an air compressor and can output compressed air into the first gap to drive the piston 3y to descend, thereby unlocking the tooling 5. A plurality of springs 3z are arranged in the second gap. The plurality of springs 3z can push the piston 3y to rise when the external air source stops supplying air, so that the driving ring 3w continuously presses the ball 3u, and the tooling 5 is continuously kept in the locked state.

[0047] In this embodiment, as shown in Figure 1 shown, an NG discharge assembly 8 is provided at the NG station. The NG discharge assembly 8 includes a linear belt conveyor located on the side of the conveyor belt assembly 2, a second manipulator that can be lifted and translated along the direction from the conveyor belt assembly 2 to the belt conveyor, a linear motor and a cylinder for driving the movement of the second manipulator. The cylinder drives the second manipulator to lift, and the linear motor drives the second manipulator to translate. A liftable lifting block and a cylinder for driving the lifting block to lift are arranged on the conveyor belt assembly 2. When the NG products that fail the previous inspection reach the NG station, the lifting block jacks them up, and then the second manipulator transfers the lifted NG products to the belt conveyor. [[ID=**6**]] [[ID=**7**]]

[0048] [[ID=**8**]]In this embodiment, a manual blanking table 12 is provided at the blanking station. After the qualified products reach the blanking station, the worker removes the CDC valve 100 from the tooling 5 and collects it. [[ID=**9**]] [[ID=**l0**]]

[0049] [[ID=**11**]]The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A CDC valve testing device, characterized in that: It includes a machine base (1) and an annular conveyor belt assembly (2) provided on the machine base (1). A loading station, at least one testing station, and an unloading station are sequentially arranged around the circumferential side of the conveyor belt assembly (2) in the circumferential direction. A testing assembly (3) is provided at the testing station. The testing assembly (3) includes a testing seat (3a) for carrying the CDC valve (100), two flow channels (3b) opened in the testing seat (3a), a first probe (3c) movably arranged along the direction of approaching or departing from the testing seat (3a), and a first driving module (3d) for driving the movement of the first probe (3c). One ends of the two flow channels (3b) are both communicated with an oil supply assembly (4), and the other ends are respectively used for communicating with two valve ports of the CDC valve (100). A first detection module is provided on the oil supply assembly (4). The first probe (3c) can be in contact with the cable (100a) of the CDC valve (100) during its moving stroke, and a second detection module is communicated with the rear end of the first probe (3c).

2. The CDC valve testing device according to claim 1, characterized in that: The CDC valve (100) is installed on a tooling (5). The tooling (5) is carried on the testing seat (3a). A wire winding column (5a) and a wire socket (5b) are provided on the tooling (5). The cable (100a) is wound around the wire winding column (5a) and its end is inserted into the wire socket (5b). The first probe (3c) is located on one side in the horizontal direction of the testing seat (3a) and can be in positive alignment docking with the wire socket (5b) during its moving stroke.

3. A CDC valve testing device according to claim 1 or 2, characterized in that: The testing assembly (3) further includes a testing frame (3e), a clamping seat (3f) liftably arranged on the testing frame (3e), a second driving module (3g) for driving the lifting of the clamping seat (3f), a servo boosting module (3h) provided at the bottom of the clamping seat (3f), and a sleeve (3i) connected to the output end of the servo boosting module (3h). A relief groove (3j) is opened on the side wall of the sleeve (3i). A valve post (100b) for installing the cable (100a) is provided on the CDC valve (100). The sleeve (3i) can be sleeved on the valve post (100b) during the lifting stroke of the clamping seat (3f), and the cable (100a) is accommodated in the relief groove (3j).

4. The CDC valve testing device according to claim 3, characterized in that: At least one first locking post (3k) is further provided on the crimping seat (3f). A locking opening (3l) is formed at the lower end of the first locking post (3k). At least one side of the test seat (3a) is provided with a locking seat (3m) corresponding to the first locking post (3k). A locking groove (3n) is formed at the upper part of the locking seat (3m). A second locking post (3o) slidably arranged along the horizontal direction and a third driving module (3p) for driving the sliding of the second locking post (3o) are further provided on the locking seat (3m). The first locking post (3k) can be inserted into the locking groove (3n) during the lifting and lowering stroke of the crimping seat (3f). The second locking post (3o) can penetrate into the locking groove (3n) and be inserted opposite to the locking opening (3l).

5. The CDC valve testing device according to claim 2, characterized in that: The test seat (3a) includes a seat body (3a1) and a mounting table (3a2) supported at the bottom of the seat body (3a1). An installation groove (3a3) for accommodating the tooling (5) is formed in the seat body (3a1). The two flow channels (3b) are formed in the mounting table (3a2) and communicate with the installation groove (3a3). A pressure sensor (3q) communicating with the flow channels (3b) is further provided on the mounting table (3a2).

6. The CDC valve testing device according to claim 5, wherein: The installation groove (3a3) has a first groove wall away from the first probe (3c) and a second groove wall close to the first probe (3c). A positioning strip (3r) is annularly arranged on the peripheral side of the notch of the installation groove (3a3). The positioning strip (3r) inclines downward along the direction from the first groove wall to the second groove wall. A sliding groove (3s) is formed in the positioning strip (3r). A roller (5c) is arranged on one side of the tooling (5) where the wire plugging seat (5b) is installed. The roller (5c) is in rolling cooperation with the sliding groove (3s).

7. The CDC valve testing device according to claim 5, characterized in that: A plurality of through holes (3t) are formed in the circumferential direction of the groove wall of the installation groove (3a3). Movable balls (3u) are arranged in the through holes (3t). In their respective moving strokes, the plurality of balls (3u) can press against the peripheral side of the tooling (5) or be separated from the tooling (5).

8. A CDC valve testing device according to claim 7, characterized in that: A sliding cavity (3v) is formed in the seat body (3a1). The sliding cavity (3v) surrounds the circumferential side of the installation groove (3a3) and communicates with the through holes (3t). An orifice communicating with the through holes (3t) is formed on the cavity wall of the sliding cavity (3v). A driving ring (3w) capable of sliding along the vertical direction is arranged in the sliding cavity (3v). The driving ring (3w) can block the orifice or be separated from the orifice during its sliding stroke.

9. The CDC valve testing device according to claim 8, characterized in that: A driving chamber (3x) communicating with the sliding chamber (3v) is formed in the lower part of the seat body (3a1). A slidable piston (3y) is arranged in the driving chamber (3x). The piston (3y) is coaxially connected with the driving ring (3w). Two sliding gaps are respectively formed between the two end parts of the sliding direction of the piston (3y) and the driving chamber (3x). A spring (3z) is arranged in one of the two sliding gaps, and the other one is communicated with an external air source.

10. A CDC valve testing device according to claim 2, characterized in that: A pre-inspection station is further arranged between the loading station and the testing station, and an NG station is further arranged between the testing station and the unloading station. The pre-inspection station is provided with a third detection module (6) for detecting the winding condition of the cable (100a) on the winding column (5a) and a fourth detection module (7) for detecting the resistance performance of the CDC valve (100). The NG station is provided with an NG discharge assembly (8).

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