CN112067276A - Device and method for testing performance and durability of multi-axial pneumatic switch - Google Patents
Device and method for testing performance and durability of multi-axial pneumatic switch Download PDFInfo
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- CN112067276A CN112067276A CN202010993958.0A CN202010993958A CN112067276A CN 112067276 A CN112067276 A CN 112067276A CN 202010993958 A CN202010993958 A CN 202010993958A CN 112067276 A CN112067276 A CN 112067276A
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- air
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- pressure relay
- electromagnetic valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a device and a method for testing performance and durability of a multi-axial pneumatic switch, which comprises a PLC control system, a pneumatic system, an actuating mechanism, a load system and a multi-directional switch; the pneumatic system comprises an air pump, an air storage tank, a powder water air filter, a hydraulic valve, an oil atomizer, a pressure relay and N air cylinder control circuits connected with the pressure relay in sequence; each cylinder control circuit comprises a two-position five-way electromagnetic valve and a cylinder; wherein, N cylinders are arranged in different directions; the actuating mechanism comprises N thrust needles; each thrust needle is connected with the air cylinder in a one-to-one correspondence manner; n is more than or equal to 2; the PLC control system sends a control instruction to the pressure relay according to preset action sequence data to control each two-position five-way electromagnetic valve to be conducted; when the two-position five-way electromagnetic valve is switched on, the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction. The device has the advantages of simple circuit structure and simple and easy operation.
Description
Technical Field
The invention relates to the field of testing of the operation performance and the durability of a pneumatic switch, in particular to a device for testing the performance and the durability of a multi-axial pneumatic switch.
Background
The existing switch operation performance and durability test device controls and excites a motor to drive through a Programmable Logic Controller (PLC), and the motor drives a link mechanism to realize reciprocating motion in a single direction, so that the aim of pushing a switch to operate towards a fixed axial direction is fulfilled, and the operation frequency is adjusted by adjusting the PLC control logic. The switch operation performance and durability test device on the market at present can only examine switches with single axial direction or single dimensionality in a single test, and is mainly used for performance examination of common rocker switches, button switches and touch switches for household use, industrial use and electronic product industry. Aiming at multi-axial and multi-dimensional special switches such as six-item seat adjusting switches and rearview mirror direction adjusting switches of automobiles, three-axial synchronous operation cannot be realized in a single test, the test can only be performed one by one, the test time is increased by several times, and the test cost is synchronously increased. The existing switch durability test device is operated by mechanisms such as a motor, is large in size and heavy in weight, cannot be matched with environment test equipment such as a high-low temperature test box, a damp-heat test box and a three-comprehensive test bed for use, and cannot meet the requirements of checking the operation performance and durability of a switch under complex and severe weather environments such as high-low temperature, alternating damp-heat and vibration. For special switches such as six-seat adjusting switches of an automobile, a rearview mirror direction adjusting switch and the like, due to the multi-dimensional and multi-axial structural characteristics and the harsh use environment of the switches, the existing switch durability testing device cannot test the performance of the switches in a multi-axial mode.
Therefore, in order to solve the problems in the prior art, it is important to provide a testing apparatus for testing the performance and durability of a multi-axial pneumatic switch, which has a simple circuit structure and is easy to operate and can test the switch performance in a multi-axial manner.
Disclosure of Invention
The invention provides a device and a method for testing the performance and the durability of a multi-axial pneumatic switch, aiming at overcoming the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a test device for performance and durability of a multi-axial pneumatic switch comprises a PLC control system, a pneumatic system, an actuating mechanism, a load system and a multi-directional switch; the PLC control system, the pneumatic system and the actuating mechanism are sequentially connected, and the actuating mechanism and the load system are respectively connected with the multi-directional switch;
the pneumatic system comprises an air pump, an air storage tank, a powder water air filter, a hydraulic valve, an oil atomizer, a pressure relay and N air cylinder control circuits connected with the pressure relay in sequence; each cylinder control circuit comprises a two-position five-way electromagnetic valve connected with the pressure relay and a cylinder connected with the two-position five-way electromagnetic valve; wherein, N cylinders are arranged in different directions; the actuating mechanism comprises N thrust needles; each thrust needle is connected with the air cylinder in a one-to-one correspondence manner; n is more than or equal to 2;
the PLC control system is provided with action sequence data of the air cylinders in advance, sends control instructions to the pressure relay according to the preset action sequence data, drives a coil of the pressure relay to suck, drives contacts to be closed, and controls each two-position five-way electromagnetic valve to be conducted in sequence; the two-position five-way electromagnetic valve is configured to receive a driving signal of the pressure relay and control the on-off of the gas path; when the two-position five-way electromagnetic valve is switched on, the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction for plugging and unplugging;
the load system is configured to provide an alternating current or direct current load to the multi-directional switch for simulating the working condition of the multi-directional switch during actual use.
Specifically, the powder water filter is used for filtering dust particles, the hydraulic valve is used for adjusting pressure, the oil atomizer is used for filtering oil mist in air, and the pressure relay is used for feeding back a pressure signal so as to enable the pneumatic system to keep constant pressure; the two-position five-way electromagnetic valve controls the on-off of the gas path.
In particular to special switches such as six-seat adjusting switches of an automobile, a rearview mirror direction adjusting switch and the like, due to the structural characteristics of multiple dimensions and multiple axial directions and the harsh use environment of the switch, the technical scheme adopts a pneumatic mode, six thrust needles are arranged in three axial directions of the switch, the PLC can control the three axial needles to operate simultaneously, synchronous operation in three directions is realized, meanwhile, the device abandons the traditional motor drive and adopts the high-pressure air pump drive mode, thereby greatly reducing the volume and the weight of the device, and the special wire inlet and air inlet modes are adopted, and the air pipe and the operating components used by the equipment are made of high and low temperature resistant materials, so that the equipment can be better matched with environmental test equipment such as a high and low temperature test box, a damp and hot test box, a three-comprehensive test bed and the like for use, and the operation performance examination under the condition of complex environmental stress price adjustment is realized.
Specifically, the testing device mainly comprises a PLC control system, a pneumatic system, an actuating mechanism and a load system. The PLC control system is responsible for controlling the six-direction action sequence, action time, action frequency, action interval time and the like of the whole device; the output point of the PLC is used for driving a coil of the relay, and the contact of the relay is used for driving the electromagnetic valve. The principle is that through program design logic control, when an external electromagnetic valve needs to be switched on, a PLC output end outputs a signal to drive a coil of a relay, and the coil of the relay is attracted to drive a movable contact to be closed, so that the purpose of driving the electromagnetic valve is achieved. The order is edited through the touch screen, the order control is realized through the switching value, the order is transmitted out through the analog output unit, and the feedback signal is transmitted to the PLC through the input unit; the on-off of the air path is controlled by controlling the on-off of the electromagnetic valve, so that the telescopic action of the air cylinder is controlled.
Specifically, the pneumatic system comprises an air pump, an air storage tank, a powder-water air filter, a hydraulic valve, an oil atomizer, a pressure relay, a two-position five-way solenoid valve, an air cylinder and the like, so that the air pressure condition (pressure relief when the system pressure is too high) of each branch is monitored, the air pressure among the branches is balanced and distributed, and the opening and closing of the actuating mechanism and the acting force and acting distance of the actuating mechanism are controlled. The actuator drives the multi-directional switch to operate (turn on or off) in a predetermined sequence by a thrust needle (air switch). The load system can provide various forms of alternating current and direct current loads such as resistance, motor, inductance, capacitance and the like for the multi-directional switch so as to simulate the working condition of the switch in the actual use process.
Specifically, the PLC control system sends an instruction to the pneumatic system after setting parameters such as an action sequence, an action frequency and an action time. After receiving the instruction, the pneumatic system balances the air pressure of each branch, controls the opening of the two-position five-way battery valve through a relay, outputs the gas with the specified air pressure by the air supply system, drives the multi-direction switches to act according to the specified sequence by the driving of the air pressure by the six-direction thrust pins (air switches), and switches on the load system.
Preferably, the pneumatic system further comprises a limit switch.
Preferably, the cylinder control circuit has six cylinders, wherein six cylinders are arranged in three axial directions.
Preferably, the pneumatic system further comprises a one-way throttle valve, and the one-way throttle valve is installed on a connecting line between the two-position five-way electromagnetic valve and the cylinder.
Preferably, the pressure relay is connected with the N cylinder control circuits through a bus.
Preferably, the model of the two-position five-way electromagnetic valve is 4V 210-06; the model of the pressure relay is JCS-02N; the model of the cylinder is CJ1B-5SU 4.
Preferably, the testing device further comprises a gas supply system connected with the pneumatic system, and the gas supply system is configured to output gas with set gas pressure to the pneumatic system.
Preferably, the PLC control system is further preset with operation frequency data and operation time data.
The invention also provides a test method for the performance and durability of the multi-axial pneumatic switch applied to the test device, which comprises the following steps:
step S1: the PLC control system stores preset action sequence data, action frequency data and action time data;
step S2: starting an air pump, enabling compressed air to flow through a powder water air filter from an air storage tank to filter dust particles, then enabling the compressed air to enter a hydraulic valve, adjusting the pressure by the hydraulic valve, and then filtering oil mist in the air by an oil mist filter;
step S3: the PLC control system sends a control command to the pneumatic system, the pressure relay sequentially controls and drives the two-position five-way electromagnetic valve to be conducted according to the action sequence, the action frequency and the action time according to data information carried by the control command, and the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction for plugging and unplugging.
The invention has the beneficial effects that:
according to the device and the method for testing the performance and the durability of the multi-axial pneumatic switch, the circuit control structure of the testing device is simple, the problem that a single test of the multi-axial switch cannot check multiple directions is solved, the number of testing stations can be increased or decreased as required by independently modularly designing the actuating mechanism, and the flexibility and adjustability of the number of the samples tested in one batch are realized. And a pneumatic driving mode is adopted on the device, so that the overall size and weight of the equipment are reduced, the execution mechanism is independently and modularly designed, the device is matched with a high-low temperature environment test chamber, a low-pressure test chamber, a three-comprehensive test chamber and the like for use, and the reliability of the multi-axial or multi-dimensional switch under different environmental stress conditions is checked.
Drawings
FIG. 1 is a schematic diagram of the operation of the testing apparatus provided in the present invention;
FIG. 2 is a schematic diagram of the connection between the pneumatic system and the actuator of the testing device provided by the present invention;
FIG. 3 is a schematic diagram of the testing device provided by the present invention applied to an adjustment switch of six seats of an automobile;
fig. 4 is a schematic flow chart of a testing method provided by the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 3, the present embodiment provides a testing apparatus for performance and durability of a multi-axial pneumatic switch, which is characterized by comprising a PLC control system, a pneumatic system, an actuator, a load system, an air supply system, and a multi-directional switch; the PLC control system, the pneumatic system and the actuating mechanism are sequentially connected, and the actuating mechanism and the load system are respectively connected with the multi-directional switch; the gas supply system is connected with the pneumatic system, and the gas supply system is configured to output gas with set gas pressure to the pneumatic system.
The pneumatic system comprises an air pump 1, an air storage tank 2, a powder water air filter 3, a hydraulic valve 4, an oil atomizer 5, a pressure relay 6 and N air cylinder control circuits connected with the pressure relay 6 in sequence; each cylinder control circuit comprises a two-position five-way electromagnetic valve 7 connected with the pressure relay 6 and a cylinder connected with the two-position five-way electromagnetic valve 7; wherein, N cylinders are arranged in different directions; the actuating mechanism comprises N thrust needles; each thrust needle is connected with the air cylinder in a one-to-one correspondence manner; n is more than or equal to 2;
the PLC control system is preset with action sequence data, action frequency data and action time data of the air cylinder, sends a control command to the pressure relay 6 according to the preset action sequence data, the action frequency data and the action time data, drives a coil of the pressure relay 6 to suck, drives a contact to close, and sequentially controls each two-position five-way electromagnetic valve 7 to be conducted; the two-position five-way electromagnetic valve 7 is configured to receive a driving signal of the pressure relay 6 and control the on-off of an air path; when the two-position five-way electromagnetic valve 7 is switched on, the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction; the load system is configured to provide an ac or dc load to the multi-directional switch.
In the embodiment, taking the application to the six-seat adjusting switch 9 of the automobile as an example, when the testing device is applied to the six-seat adjusting switch 9 of the automobile, the testing device has six cylinder control circuits, wherein, as shown in fig. 2, the six cylinders are a seat forward moving cylinder, a backrest forward cylinder, a seat backward moving cylinder, a seat backward cylinder, a seat cushion up cylinder and a seat cushion down cylinder respectively; the six cylinders are arranged on different axial directions to be matched with an adjusting switch of six seats of the automobile. Six two-position five-way electromagnetic valves 7 corresponding to the six cylinders are YV1, YV2, YV3, YV4, YV5 and YV6 respectively.
In this embodiment, the pneumatic system further includes a one-way throttle valve 8, and the one-way throttle valve 8 is installed on a connection line between the two-position five-way solenoid valve 7 and the cylinder; the pressure relay 6 is connected with six cylinder control circuits through buses;
as shown in fig. 4, the present invention further provides a method for testing performance and durability of a multi-axial pneumatic switch applied to the testing apparatus, where the method includes:
step S1: the PLC control system stores preset action sequence data, action frequency data and action time data;
step S2: starting the air pump 1, enabling compressed air to flow through the powder water air filter 3 from the air storage tank 2 to filter dust particles, then enabling the compressed air to enter the hydraulic valve 4, adjusting the pressure by the hydraulic valve 4, and then filtering oil mist in the air by the oil mist device 5;
step S3: the PLC control system sends a control command to the pneumatic system, the pressure relay 6 sequentially controls and drives the two-position five-way electromagnetic valve 7 to be conducted according to the action sequence, the action frequency and the action time according to data information carried by the control command, and the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction for plugging and unplugging.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A test device for performance and durability of a multi-axial pneumatic switch is characterized by comprising a PLC control system, a pneumatic system, an actuating mechanism, a load system and a multi-directional switch; the PLC control system, the pneumatic system and the actuating mechanism are sequentially connected, and the actuating mechanism and the load system are respectively connected with the multi-directional switch;
the pneumatic system comprises an air pump, an air storage tank, a powder water air filter, a hydraulic valve, an oil atomizer, a pressure relay and N air cylinder control circuits connected with the pressure relay in sequence; each cylinder control circuit comprises a two-position five-way electromagnetic valve connected with the pressure relay and a cylinder connected with the two-position five-way electromagnetic valve; wherein, N cylinders are arranged in different directions; the actuating mechanism comprises N thrust needles; each thrust needle is connected with the air cylinder in a one-to-one correspondence manner; n is more than or equal to 2;
the PLC control system is provided with action sequence data of the air cylinders in advance, sends control instructions to the pressure relay according to the preset action sequence data, drives a coil of the pressure relay to suck, drives contacts to be closed, and controls each two-position five-way electromagnetic valve to be conducted in sequence; the two-position five-way electromagnetic valve is configured to receive a driving signal of the pressure relay and control the on-off of the gas path; when the two-position five-way electromagnetic valve is switched on, the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction for plugging and unplugging;
the load system is configured to provide an ac or dc load to the multi-directional switch.
2. The testing device of claim 1, wherein the pneumatic system further comprises a one-way throttle valve, and the one-way throttle valve is installed on a connecting line between the two-position five-way solenoid valve and the cylinder.
3. The test device of claim 1, wherein the pressure relay is connected to the N cylinder control lines via a bus.
4. The testing device of claim 1, wherein the cylinder control circuit has six cylinders, wherein six cylinders are arranged in three axial directions.
5. The testing device of claim 1, wherein the two-position, five-way solenoid valve is 4V 210-06.
6. The testing device of claim 1, wherein the pressure relay is of the type JCS-02N.
7. The test apparatus of claim 1, wherein the cylinder is model CJ1B-5SU 4.
8. The testing device of claim 1, further comprising a gas supply system coupled to the pneumatic system, the gas supply system configured to output a gas at a set pressure to the pneumatic system.
9. The test device according to claim 1, wherein the PLC control system is further preset with operation frequency data and operation time data.
10. A method for testing performance and durability of a multi-axial pneumatic switch applied to the testing apparatus according to any one of claims 1 to 9, the method comprising:
step S1: the PLC control system stores preset action sequence data, action frequency data and action time data;
step S2: starting an air pump, enabling compressed air to flow through a powder water air filter from an air storage tank to filter dust particles, then enabling the compressed air to enter a hydraulic valve, adjusting the pressure by the hydraulic valve, and then filtering oil mist in the air by an oil mist filter;
step S3: the PLC control system sends a control command to the pneumatic system, the pressure relay sequentially controls and drives the two-position five-way electromagnetic valve to be conducted according to the action sequence, the action frequency and the action time according to data information carried by the control command, and the air cylinder pushes the thrust needle to move towards the multi-way switch in a corresponding direction for plugging and unplugging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010993958.0A CN112067276A (en) | 2020-09-21 | 2020-09-21 | Device and method for testing performance and durability of multi-axial pneumatic switch |
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| CN202010993958.0A CN112067276A (en) | 2020-09-21 | 2020-09-21 | Device and method for testing performance and durability of multi-axial pneumatic switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545848A (en) * | 2022-04-24 | 2022-05-27 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Servo motor endurance test process monitoring method and device and computer equipment |
| CN117054877A (en) * | 2023-10-10 | 2023-11-14 | 宁德时代新能源科技股份有限公司 | Offline testing system of battery, battery production line and testing method |
-
2020
- 2020-09-21 CN CN202010993958.0A patent/CN112067276A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545848A (en) * | 2022-04-24 | 2022-05-27 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Servo motor endurance test process monitoring method and device and computer equipment |
| CN114545848B (en) * | 2022-04-24 | 2022-08-16 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Servo motor endurance test process monitoring method and device and computer equipment |
| CN117054877A (en) * | 2023-10-10 | 2023-11-14 | 宁德时代新能源科技股份有限公司 | Offline testing system of battery, battery production line and testing method |
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