Gearbox valve performance test board and working method thereof

Abstract

The invention relates to a gearbox valve performance test board and a working method thereof, and belongs to the field of gearbox valve testing. The device comprises a rack frame, an EOL testing mechanism, a robot picking mechanism, a point inspection placement seat and an oil control mechanism, the EOL testing mechanism, the robot picking mechanism and the point inspection placement seat are independently installed on the rack frame, and the EOL testing mechanism comprises a bottom plate, a sensor installation module, a product feeding module, a QPV testing tool, 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 tool, the A port oil inlet and outlet control block and the B / T port oil control module are all installed on the bottom plate. And the oil control mechanism is arranged below the bottom plate. The invention further provides a working method of the gearbox valve performance test board convenient to operate. The testing system is reasonable in structural design, safe, reliable, high in testing efficiency, good in accuracy and stability and capable of meeting use requirements.

Description

Technical Field

[0001] The invention relates to a test bench and a working method thereof, in particular to a gearbox valve performance test bench and a working method thereof, and belongs to the field of gearbox valve testing. Background Art

[0002] The existing performance test structure has low test accuracy, slow cycle, poor repeatability and poor compatibility, and cannot meet the existing performance test needs.

[0003] A Chinese patent with a publication date of May 4, 2016 and a publication number of CN105545877A discloses an invention patent entitled "An automatic transmission gearbox valve performance test device". In the patent, one end of the oil outlet oil circuit is connected to the oil tank, and the other end of the oil outlet oil circuit is simultaneously connected to one end of the oil circuit branch I and one end of the oil circuit branch II. The other end of the oil circuit branch I is connected to the clutch valve of the gearbox valve, and the other end of the oil circuit branch II is connected to the selector shift valve of the gearbox valve. The clutch valve and the selector shift valve are connected to one end of the return oil circuit, and the other end of the return oil circuit is connected to the oil tank. The clutch valve and the selector shift valve are respectively connected to the control component. Although the patent has a simple structure, multiple test functions, low equipment investment, strong versatility, high utilization rate, and cost saving, the patent is obviously different from the test bench structure, test efficiency, and test function of the present application.

[0004] Therefore, it is particularly necessary to provide a testing device with reasonable structural design, high testing efficiency and good testing system accuracy. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a transmission valve performance test bench and a working method thereof which have reasonable structural design, are safe and reliable, have high test efficiency, have good accuracy and stability of the test system, and are easy to operate.

[0006] The technical solution adopted by the present invention to solve the above problems is: the gearbox valve performance test bench includes a bench frame, which is characterized in that it also includes an EOL test mechanism, a robot picking mechanism, a spot inspection placement seat and an oil control mechanism, and the EOL test mechanism, the robot picking mechanism, and the spot inspection placement seat are independently installed on the 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, and 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 sensor installation module includes a mounting seat, a pin pressure rod, a temperature sensor, an oil A pressure sensor, a parallel piece, an electric cylinder, a force sensor, a servo motor and a sensor mounting substrate, wherein the servo motor is mounted on the parallel piece, the parallel piece is connected to the electric cylinder, the electric cylinder is mounted on the mounting seat, the ejector pressure rod is connected to the electric cylinder, the force sensor is arranged at the rear end of the ejector pressure rod, the temperature sensor and the oil pressure sensor are respectively mounted on the sensor mounting substrate, and the sensor mounting substrate is fixed on the mounting seat; the product feeding module comprises a slider mounting block, a jaw mounting plate, jaw one, jaw two, a blocking cylinder mounting seat, an energizing module, an air jaw and a cylinder, wherein jaw one and jaw two are mounted on the air jaw, the jaw mounting plate is on the slider mounting block, the air jaw is mounted on the jaw mounting plate, the cylinder is mounted on the blocking cylinder mounting seat, the blocking cylinder mounting seat is mounted on the slider mounting block, and the energizing module is mounted on the slider mounting block.

[0007] Preferably, the A-port oil inlet and outlet control block of the present invention includes a solenoid valve mounting seat, a flowmeter mounting block, a throttling hole, an accumulator mounting seat, a flowmeter and a stop valve, the flowmeter is mounted on the flowmeter mounting block, the flowmeter mounting block is mounted on the solenoid valve mounting seat, the throttling hole is mounted inside the flowmeter mounting block, the accumulator mounting seat is connected to the solenoid valve mounting seat, and the stop valve is mounted on the solenoid valve mounting seat.

[0008] Preferably, the number of the stop valves in the present invention is three, and the three stop valves are all mounted on a solenoid valve mounting seat.

[0009] Preferably, the robot picking mechanism of the present invention comprises a robot flange, a picking double-jaw assembly and a robot, and the picking double-jaw assembly and the robot are connected via the robot flange.

[0010] Preferably, the oil control mechanism of the present invention comprises an oil separator block, a proportional valve, a flow meter 1, a flow meter 2 and an accumulator, and the proportional valve, the flow meter 1, the flow meter 2 and the accumulator are all installed on the oil separator block.

[0011] The present invention also provides a working method of a transmission valve performance test bench, which is characterized by: the specific steps are as follows: (S1) Loading, unloading and clamping: The robot picking mechanism picks up the product and clamps it to the product feeding module. The cylinder moves, clamps the product and locks it; (S2) Exhaust: The oil control mechanism supplies oil, the A port oil inlet and outlet control block is opened, and the B / T port oil control module is opened; (S3) Calibration: The A-port oil inlet and outlet control block and the B / T-port oil control module are closed, the power-on module in the product feeding module is powered on, a certain current is set, the electric cylinder in the sensor installation module pushes the ejector rod to set the A-port pressure of the PPV solenoid valve, and all mechanisms are reset; (S4) Performance test: The oil control mechanism controls the P port pressure of the PPV solenoid valve to perform flow pressure test. The acquisition system collects the flow pressure of the P port, A port and T port, and performs corresponding data analysis.

[0012] Compared with the prior art, the present invention has the following advantages and effects: (1) the overall structural 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 a Ni software platform is used for data acquisition and analysis; (3) an online solenoid valve force calibration system of a servo press and a pressure sensor is set in the EOL test module to improve the force value setting accuracy of the product; (4) a quick changeover tooling is set in the test bench to identify the product type and be compatible with the co-production of multiple products; (5) an inspection placement seat and a robot picking mechanism are set to realize automatic inspection of the equipment, and calibration ensures the accuracy and stability of the test system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0014] Figure 2 Schematic diagram of the structure of the EOL test mechanism in an embodiment of the present invention.

[0015] Figure 3 It is a structural schematic diagram of a sensor installation module in an EOL test mechanism according to an embodiment of the present invention.

[0016] Figure 4 It is a schematic diagram of the structure of a product feeding module in an EOL testing mechanism according to an embodiment of the present invention.

[0017] Figure 5 It is a schematic diagram of the structure of the product feeding module in the EOL testing mechanism in another direction of the embodiment of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the A-port oil inlet and outlet control block in the EOL test mechanism of an embodiment of the present invention.

[0019] Figure 7 Schematic diagram of the structure of the robot picking mechanism in an embodiment of the present invention.

[0020] Figure 8 Schematic diagram of the structure of the oil control mechanism in the embodiment of the present invention.

[0021] In the figure: a test bench frame 1, an EOL test mechanism 2, a robot picking mechanism 3, an inspection placement seat 4, an oil control mechanism 5, an indicator light 11, and an oil mist processor 12; EOL test mechanism 2: base plate 21, sensor installation module 22, product feeding module 23, QPV test fixture 24, A port oil inlet and outlet control block 25, B / T port oil control module 26; Sensor installation module 22: mounting seat 221, ejector rod 222, temperature sensor 223, oil pressure sensor 224, parallel piece 225, electric cylinder 226, force sensor 227, servo motor 228; Product feeding module 23: slider mounting block 231, clamping jaw mounting plate 232, clamping jaw 1 233, clamping jaw 234, blocking cylinder mounting seat 235, power supply module 236, air claw 237, cylinder 238; A port oil inlet and outlet control block 25: solenoid valve mounting seat 251, flow meter mounting block 252, throttle hole 253, accumulator mounting seat 254, flow meter 255, stop valve 256; Robot picking mechanism 3: robot flange 31, picking double gripper assembly 32, robot 33; Oil control mechanism 5: oil distributor 51, proportional valve 52, flow meter 1 53, flow meter 2 54, accumulator 55. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0023] Example

[0024] See also Figures 1 to 8 The gearbox valve performance test bench of this embodiment includes 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 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, the QPV test fixture 24, the A-port oil inlet and outlet control block 25, and the 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.

[0025] In this embodiment, the sensor mounting 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 mounting substrate 229. The servo motor 228 is mounted on the parallel piece 225, the parallel piece 225 is connected to the electric cylinder 226, the electric cylinder 226 is mounted on the mounting seat 221, the pin pressure rod 222 is connected to the electric cylinder 226, the force sensor 227 is arranged at the rear end of the pin pressure rod 222, the temperature sensor 223 and the oil pressure sensor 224 are respectively mounted on the sensor mounting substrate 229, and the sensor mounting substrate 229 is fixed on the mounting seat 221.

[0026] In this embodiment, the product feeding module 23 includes a slider mounting block 231, a clamp mounting plate 232, a clamp 1 233, a clamp 234, a blocking cylinder mounting seat 235, a power-on module 236, an air clamp 237 and a cylinder 238. The clamp 1 233 and the clamp 234 are mounted on the air clamp 237, the clamp mounting plate 232 is on the slider mounting block 231, the air clamp 237 is mounted on the clamp 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-on module 236 is mounted on the slider mounting block 231.

[0027] In this embodiment, the A-port oil inlet and outlet control block 25 includes 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. 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.

[0028] In this embodiment, there are three stop valves 256 , and the three stop valves 256 are all installed on the solenoid valve mounting seat 251 .

[0029] In this embodiment, the robot picking mechanism 3 includes a robot flange 31 , a picking double-jaw assembly 32 and a robot 33 , and the picking double-jaw assembly 32 and the robot 33 are connected via the robot flange 31 .

[0030] In this embodiment, the oil control mechanism 5 includes an oil distributor block 51, a proportional valve 52, a flow meter 1 53, a flow meter 2 54 and an accumulator 55, and the proportional valve 52, the flow meter 1 53, the flow meter 2 54 and the accumulator 55 are all installed on the oil distributor block 51.

[0031] In this embodiment, there are eight test mechanisms 2 and five inspection placement seats 4; the quantity can be selected according to actual conditions.

[0032] The indicator light 11 and the oil mist processor 12 in this embodiment are respectively arranged on the test bench frame 1; the indicator light 11: when the device is abnormal during the test, the indicator light 11 lights up and buzzes to remind the staff of the equipment abnormality; the oil mist processor 12: separates the oil and air in the test equipment and the intake oil and gas to ensure the equipment operating environment and prevent pollution.

[0033] The working process of the gearbox valve performance test bench in this embodiment is as follows: (S1) Loading, unloading and clamping: The robot picking mechanism 3 picks up the product (PPV solenoid valve) and clamps it to the product feeding module 23, and the cylinder 238 is actuated 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-on 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 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 a flow pressure test. The acquisition system collects the flow pressures of the P port, A port, and T port, and performs corresponding data analysis (hysteresis, response to forward and reverse flow).

[0034] Through the above description, those skilled in the art can already implement it.

[0035] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field to which the present invention belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A gearbox valve performance test bench, comprising a test bench frame (1), characterized in that: The device also includes an EOL test mechanism (2), a robot picking mechanism (3), a spot inspection placement seat (4) and an oil control mechanism (5). 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). The EOL test mechanism (2) includes a base plate (21), a sensor installation module (22), a product supply 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 supply 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) being 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 pressure rod (222) is connected to the electric cylinder (226), the force sensor (227) is arranged at the rear end of the ejector pressure rod (222), the temperature sensor (223) and the oil pressure sensor (224) are respectively installed on the sensor mounting substrate (229), and the sensor mounting substrate (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), a blocking cylinder mounting seat (235), an energizing module (236), an air jaw (237) and a cylinder (238), wherein the jaw 1 (233) and the jaw 2 (234) are mounted on the air jaw (237), the jaw mounting plate (232) is mounted on the slider mounting block (231), the air jaw (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 energizing 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); 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); 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 distribution block (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 distribution block (51).

6. A working method of a transmission valve performance test bench, using the transmission valve performance test bench as claimed in any one of claims 1 to 5, characterized in that: The specific steps are as follows: (S1) Loading, 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) is actuated 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-on 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 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 a flow pressure test. The acquisition system collects the flow pressures of the P port, A port, and T port, and performs corresponding data analysis.

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