Gearbox valve performance test bench and working method thereof

Abstract

The present invention relates to a transmission valve performance test bench and a working method thereof, which belongs to the field of transmission valve testing. The present invention includes a test bench frame, an EOL test mechanism, a robot picking mechanism, a spot inspection placement seat and an oil control mechanism. The EOL test mechanism, the robot picking mechanism and the spot inspection placement seat are independently installed on the test bench frame. The EOL test mechanism includes a base plate, a sensor installation module, a product feeding module, a QPV test fixture, an A-port oil inlet and outlet control block and a B / T-port oil control module. The sensor installation module, the product feeding module, the QPV test fixture, the A-port oil inlet and outlet control block and the B / T-port oil control module are all installed on the base plate; the oil control mechanism is installed below the base plate. The present invention also provides a working method of a transmission valve performance test bench that is easy to operate. The present invention has a reasonable structural design, is safe and reliable, has high testing efficiency, and the accuracy and stability of the test system are good, meeting the use requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to a test bench and its working method, in particular to a gearbox valve performance test bench and its working method, which belongs to the field of gearbox valve testing. BACKGROUND

[0002] The existing performance test structure has low test precision, slow rhythm, poor repeatability and poor compatibility, and cannot meet the existing performance test requirements.

[0003] In the Chinese patent with publication date of May 4, 2016 and publication number CN105545877A, an invention patent with the name of "a kind of automatic gearbox gearbox valve performance testing device" is disclosed. In the patent, one end of the oil outlet oil circuit is communicated with the oil tank, the other end of the oil outlet oil circuit is communicated with the oil circuit branch I and the oil circuit branch II at the same time, the other end of the oil circuit branch I is connected with the clutch valve of the gearbox valve, the other end of the oil circuit branch II is communicated with the selection and shift valve of the gearbox valve, the clutch valve and the selection and shift valve are communicated with the oil return circuit at one end, the other end of the oil return circuit is communicated with the oil tank, the clutch valve and the selection and shift valve are connected with the control component respectively. Although the patent has simple structure, multiple test functions, less equipment investment, strong universality, high utilization rate and cost saving, the test bench structure, test efficiency and test function of the patent are obviously different from those of the present application.

[0004] Therefore, it is particularly necessary to provide a test device with reasonable structure design, high test efficiency and good accuracy of test system. SUMMARY

[0005] The present application aims to overcome the above-mentioned deficiencies in the prior art, and to provide a gearbox valve performance test bench with reasonable structure design, safety and reliability, high test efficiency, good accuracy and stability of test system, and convenient operation.

[0006] The technical scheme adopted by the present application to solve the above problems is: the gearbox valve performance test bench, comprising a bench frame, characterized in that: further comprising an EOL test mechanism, a robot picking mechanism, an inspection placement seat and an oil control mechanism, the EOL test mechanism, the robot picking mechanism and the inspection placement seat are independently installed on the bench frame, the EOL test mechanism comprises a bottom plate, a sensor installation module, a product feeding module, a QPV test tool, an A port in-out oil control block and a B / T port oil control module, the sensor installation module, the product feeding module, the QPV test tool, the A port in-out oil control block and the B / T port oil control module are all installed on the bottom plate; the oil control mechanism is installed below the bottom plate; the sensor installation module comprises a mounting seat, a pin press rod, a temperature sensor, an oil pressure sensor, a parallel piece, an electric cylinder, a force sensor, a servo motor and a sensor installation base plate, the servo motor is installed on the parallel piece, the parallel piece is connected with the electric cylinder, the electric cylinder is installed on the mounting seat, the pin press rod is connected with the electric cylinder, the force sensor is arranged at the rear end of the pin press rod, the temperature sensor and the oil pressure sensor are respectively installed on the sensor installation base plate, and the sensor installation base plate is fixed on the mounting seat; the product feeding module comprises a sliding block mounting block, a jaw mounting plate, a jaw one, a jaw two, a blocking cylinder mounting seat, an electrification module, a gas jaw and a cylinder, the jaw one and the jaw two are installed on the gas jaw, the jaw mounting plate is installed on the sliding block mounting block, the gas jaw is installed on the jaw mounting plate, the cylinder is installed on the blocking cylinder mounting seat, the blocking cylinder mounting seat is installed on the sliding block mounting block, and the electrification module is installed on the sliding block mounting block.

[0007] Preferably, the A port in-out oil control block comprises an electromagnetic valve mounting seat, a flowmeter mounting block, a throttle hole, an accumulator mounting seat, a flowmeter and a stop valve, the flowmeter is installed on the flowmeter mounting block, the flowmeter mounting block is installed on the electromagnetic valve mounting seat, the throttle hole is installed inside the flowmeter mounting block, the accumulator mounting seat is connected with the electromagnetic valve mounting seat, and the stop valve is installed on the electromagnetic valve mounting seat.

[0008] Preferably, the stop valve is three, and the three stop valves are all installed on the electromagnetic valve mounting seat.

[0009] Preferably, the robot picking mechanism comprises a robot flange, a picking double-jaw assembly and a robot, and the picking double-jaw assembly is connected with the robot through the robot flange.

[0010] Preferably, the oil control mechanism comprises a oil distribution block, a proportional valve, a flowmeter one, a flowmeter two and an accumulator, and the proportional valve, the flowmeter one, the flowmeter two and the accumulator are all installed on the oil distribution block.

[0011] The present application also provides a working method of the gearbox valve performance test bench, and the specific steps are as follows:

[0012] (S1) feeding and clamping: the robot pickup mechanism picks up the product and clamps it to the product feeding module, the cylinder acts, clamps the product and locks;

[0013] (S2) exhaust: the oil control mechanism supplies oil, the A inlet and outlet oil control block opens, and the B / T oil control module opens;

[0014] (S3) calibration: the A inlet and outlet oil control block and the B / T oil control module are closed, the energized module in the product feeding module is energized, a certain current is set, the electric cylinder in the sensor installation module pushes the needle pressure rod to set the A port pressure of the PPV electromagnetic valve, and all mechanisms are reset;

[0015] (S4) performance test: the oil control mechanism controls the P port pressure of the PPV electromagnetic valve to test the flow pressure, the collection system collects the flow pressure of the P port, the A port and the T port, and corresponding data analysis is performed.

[0016] Compared with the prior art, the present application has the following advantages and effects: (1) the overall structure design is reasonable, safe and reliable, and the test efficiency is high; (2) a servo proportional valve is used for stepless oil pressure regulation and control, and a Ni software platform is used for data collection and analysis; (3) the online electromagnetic valve force calibration system of the servo press and the pressure sensor in the EOL test module can improve the force value setting accuracy of the product; (4) the quick change tooling is arranged in the test table, which can identify the product type and can be compatible with multiple products for inline production; (5) the point inspection placement seat and the robot pickup mechanism are arranged, the automatic point inspection of the equipment is realized, and the calibration ensures the accuracy and stability of the test system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the embodiment of the present application.

[0018] Figure 2 is the structure schematic diagram of the EOL test mechanism in the embodiment of the present application.

[0019] Figure 3 is the structure schematic diagram of the sensor installation module in the EOL test mechanism of the embodiment of the present application.

[0020] Figure 4 is the structure schematic diagram of the product feeding module in the EOL test mechanism of the embodiment of the present application.

[0021] Figure 5 is another direction structure schematic diagram of the product feeding module in the EOL test mechanism of the embodiment of the present application.

[0022] Figure 6 is the structure schematic diagram of the A inlet and outlet oil control block in the EOL test mechanism of the embodiment of the present application.

[0023] Figure 7is a structural schematic diagram of a robot pickup mechanism in the embodiment of the present application.

[0024] Figure 8 is a structural schematic diagram of an oil control mechanism in the embodiment of the present application.

[0025] In the figure: gantry frame 1, EOL test mechanism 2, robot pickup mechanism 3, spot inspection placement seat 4, oil control mechanism 5, indicator light 11, oil mist processor 12.

[0026] EOL test mechanism 2: bottom plate 21, sensor installation module 22, product supply module 23, QPV test tool 24, A port in-out oil control block 25, B / T port oil control module 26.

[0027] Sensor installation module 22: mounting seat 221, ejector pin pressure rod 222, temperature sensor 223, oil pressure sensor 224, parallel piece 225, electric cylinder 226, force sensor 227, servo motor 228.

[0028] Product supply module 23: sliding block installation block 231, jaw installation plate 232, jaw one 233, jaw two 234, blocking air cylinder mounting seat 235, power-on module 236, air claw 237, air cylinder 238.

[0029] A port in-out oil control block 25: electromagnetic valve mounting seat 251, flowmeter installation block 252, throttle hole 253, accumulator mounting seat 254, flowmeter 255, stop valve 256.

[0030] Robot pickup mechanism 3: robot flange 31, pickup double-jaw assembly 32, robot 33.

[0031] Oil control mechanism 5: oil distribution block 51, proportional valve 52, flowmeter one 53, flowmeter two 54, accumulator 55. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in conjunction with the accompanying drawings and by way of examples, and the following examples are an explanation of the present application and the present application is not limited to the following examples.

[0033] EXAMPLE

[0034] Reference Figures 1 to 8The gearbox valve performance test bench in the embodiment comprises a bench frame 1, an EOL test mechanism 2, a robot picking mechanism 3, an inspection placement seat 4 and an oil control mechanism 5. The EOL test mechanism 2, the robot picking mechanism 3 and the inspection placement seat 4 are independently installed on the bench frame 1. The EOL test mechanism 2 comprises a bottom plate 21, a sensor installation module 22, a product feeding module 23, a QPV test tool 24, an A-port in-out oil control block 25 and a B / T-port oil control module 26. The sensor installation module 22, the product feeding module 23, the QPV test tool 24, the A-port in-out oil control block 25 and the B / T-port oil control module 26 are all installed on the bottom plate 21. The oil control mechanism 5 is installed below the bottom plate 21.

[0035] The sensor installation module 22 in the embodiment comprises a mounting seat 221, a thimble pressing rod 222, a temperature sensor 223, an oil pressure sensor 224, a parallel piece 225, an electric cylinder 226, a force sensor 227, a servo motor 228 and a sensor installation base plate 229. The servo motor 228 is installed on the parallel piece 225. The parallel piece 225 is connected with the electric cylinder 226. The electric cylinder 226 is installed on the mounting seat 221. The thimble pressing rod 222 is connected with the electric cylinder 226. The force sensor 227 is arranged at the rear end of the thimble pressing rod 222. The temperature sensor 223 and the oil pressure sensor 224 are respectively installed on the sensor installation base plate 229. The sensor installation base plate 229 is fixed on the mounting seat 221.

[0036] The product feeding module 23 in the embodiment comprises a sliding block installation block 231, a jaw installation plate 232, a jaw one 233, a jaw two 234, a blocking cylinder installation seat 235, an electrification module 236, a gas jaw 237 and a cylinder 238. The jaw one 233 and the jaw two 234 are installed on the gas jaw 237. The jaw installation plate 232 is installed on the sliding block installation block 231. The gas jaw 237 is installed on the jaw installation plate 232. The cylinder 238 is installed on the blocking cylinder installation seat 235. The blocking cylinder installation seat 235 is installed on the sliding block installation block 231. The electrification module 236 is installed on the sliding block installation block 231.

[0037] The A-port in-out oil control block 25 in the embodiment comprises a solenoid valve installation seat 251, a flowmeter installation block 252, a throttling hole 253, an accumulator installation seat 254, a flowmeter 255 and a stop valve 256. The flowmeter 255 is installed on the flowmeter installation block 252. The flowmeter installation block 252 is installed on the solenoid valve installation seat 251. The throttling hole 253 is installed inside the flowmeter installation block 252. The accumulator installation seat 254 is connected with the solenoid valve installation seat 251. The stop valve 256 is installed on the solenoid valve installation seat 251.

[0038] The stop valve 256 in the embodiment is three. The three stop valves 256 are all installed on the solenoid valve installation seat 251.

[0039] The robot picking mechanism 3 in the embodiment comprises a robot flange 31, a picking double-claw assembly 32 and a robot 33, and the picking double-claw assembly 32 is connected with the robot 33 through the robot flange 31.

[0040] The oil control mechanism 5 in the embodiment comprises a split oil block 51, a proportional valve 52, a flowmeter one 53, a flowmeter two 54 and an accumulator 55, and the proportional valve 52, the flowmeter one 53, the flowmeter two 54 and the accumulator 55 are all installed on the split oil block 51.

[0041] The test mechanism 2 in the embodiment is eight, and the point inspection placing seat 4 is five; the number can be selected according to the actual situation.

[0042] The indicator light 11 and the oil mist processor 12 in the embodiment are respectively arranged on the bench frame 1; the indicator light 11: when the device is abnormal during the test, the indicator light 11 is lit and the buzzer is sounded to remind the staff that the device is abnormal; the oil mist processor 12: the oil and air in the test device are separated to ensure the operation environment of the device and cause pollution.

[0043] The working process of the gearbox valve performance test bench in the embodiment is as follows:

[0044] (S1) Feeding and clamping: the robot picking mechanism 3 picks up the product (PPV electromagnetic valve) and clamps it to the product feeding module 23, and the cylinder 238 acts to clamp the product and lock it;

[0045] (S2) Exhaust: the oil control mechanism 5 supplies oil, the A inlet and outlet oil control block 25 is opened, and the B / T oil control module 26 is opened;

[0046] (S3) Calibration: the A inlet and outlet oil control block 25 and the B / T oil control module 26 are closed, the power supply module 236 in the product feeding module 23 is powered on, a certain current is set, the electric cylinder 226 in the sensor installation module 22 pushes the needle pressure rod 222 to set the A port pressure of the PPV electromagnetic valve, and all mechanisms are reset;

[0047] (S4) Performance test: the oil control mechanism 5 controls the P port pressure of the PPV electromagnetic valve to test the flow pressure, collects the flow pressure of the P port, the A port and the T port, and performs corresponding data analysis (hysteresis, response positive and negative flow).

[0048] Through the above description, those skilled in the art can implement it.

[0049] In addition, it should be noted that the specific embodiments described in the specification, the shape of the parts, components, the name taken, etc. can be different, the above described in the specification is only an example of the structure of the present application. Any equivalent changes or simple changes made in accordance with the structure, features and principles described in the patent concept of the present application are included in the scope of protection of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the structure of the present application or exceed the scope defined in the claims, which shall belong to the protection scope of the present application.

Claims

1. A gearbox valve performance test bench, comprising a test bench frame (1), characterized in that: The invention also includes an EOL test mechanism (2), a robot picking mechanism (3), a spot inspection placement seat (4) and an oil control mechanism (5), wherein the EOL test mechanism (2), the robot picking mechanism (3) and the spot inspection placement seat (4) are independently installed on the bench frame (1), and the EOL test mechanism (2) includes a base plate (21), a sensor installation module (22), a product feeding module (23), a QPV test fixture (24), an A port oil inlet and outlet control block (25) and a B / T port oil control module (26), the sensor installation module (22), the product feeding module (23) ), QPV test fixture (24), A port oil inlet and outlet control block (25) and B / T port oil control module (26) are all installed on the base plate (21); the oil control mechanism (5) is installed below the base plate (21); the sensor installation module (22) includes a mounting seat (221), a pin pressure rod (222), a temperature sensor (223), an oil pressure sensor (224), a parallel piece (225), an electric cylinder (226), a force sensor (227), a servo motor (228) and a sensor installation base plate (229), the servo motor (228) is installed on the parallel piece (2 25), the parallel piece (225) is connected to the electric cylinder (226), the electric cylinder (226) is installed on the mounting seat (221), the ejector pin pressure rod (222) is connected to the electric cylinder (226), the force sensor (227) is set at the rear end of the ejector pin pressure rod (222), the temperature sensor (223) and the oil pressure sensor (224) are respectively installed on the sensor mounting base (229), and the sensor mounting base (229) is fixed on the mounting seat (221); the product feeding module (23) includes a slider mounting block (231), a clamping claw mounting plate (232), a clamping claw (233) ), jaw 1 (233), jaw 2 (234), blocking cylinder mounting seat (235), power module (236), air gripper (237) and cylinder (238), wherein the jaw 1 (233) and the jaw 2 (234) are mounted on the air gripper (237), the jaw mounting plate (232) is mounted on the slider mounting block (231), the air gripper (237) is mounted on the jaw mounting plate (232), the cylinder (238) is mounted on the blocking cylinder mounting seat (235), the blocking cylinder mounting seat (235) is mounted on the slider mounting block (231), and the power module (236) is mounted on the slider mounting block (231).

2. The transmission valve performance test bench according to claim 1, characterized in that: The A-port oil inlet and outlet control block (25) comprises a solenoid valve mounting seat (251), a flow meter mounting block (252), a throttle hole (253), an accumulator mounting seat (254), a flow meter (255) and a stop valve (256), wherein the flow meter (255) is mounted on the flow meter mounting block (252), the flow meter mounting block (252) is mounted on the solenoid valve mounting seat (251), the throttle hole (253) is mounted inside the flow meter mounting block (252), the accumulator mounting seat (254) is connected to the solenoid valve mounting seat (251), and the stop valve (256) is mounted on the solenoid valve mounting seat (251).

3. The transmission valve performance test bench according to claim 2, characterized in that: There are three stop valves (256), and the three stop valves (256) are all mounted on the solenoid valve mounting seat (251).

4. The transmission valve performance test bench according to claim 1, characterized in that: The robot picking mechanism (3) comprises a robot flange (31), a picking double-claw assembly (32) and a robot (33), wherein the picking double-claw assembly (32) and the robot (33) are connected via the robot flange (31).

5. The transmission valve performance test bench according to claim 1, characterized in that: The oil control mechanism (5) comprises an oil separator (51), a proportional valve (52), a flow meter 1 (53), a flow meter 2 (54) and an accumulator (55), wherein the proportional valve (52), the flow meter 1 (53), the flow meter 2 (54) and the accumulator (55) are all mounted on the oil separator (51).

6. A method for operating a transmission valve performance test bench, using the transmission valve performance test bench according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: (S1) Loading and unloading and clamping: the robot picking mechanism (3) picks up the product and clamps it to the product feeding module (23), and the cylinder (238) moves to clamp the product and lock it; (S2) Exhaust: The oil control mechanism (5) supplies oil, the A port oil inlet and outlet control block (25) is opened, and the B / T port oil control module (26) is opened; (S3) Calibration: The A port oil inlet and outlet control block (25) and the B / T port oil control module (26) are closed, the power supply module (236) in the product feeding module (23) is energized, a certain current is set, the electric cylinder (226) in the sensor installation module (22) pushes the ejector rod (222) to set the A port pressure of the PPV solenoid valve, and all mechanisms are reset; (S4) Performance test: The oil control mechanism (5) controls the P port pressure of the PPV solenoid valve to perform flow pressure test, and the acquisition system collects the flow pressure of the P port, A port and T port, and performs corresponding data analysis.

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