CN111380696A - Door closing speed testing device and method - Google Patents
Door closing speed testing device and method Download PDFInfo
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- CN111380696A CN111380696A CN201811654712.XA CN201811654712A CN111380696A CN 111380696 A CN111380696 A CN 111380696A CN 201811654712 A CN201811654712 A CN 201811654712A CN 111380696 A CN111380696 A CN 111380696A
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention discloses a door closing speed testing device and a door closing speed testing method, wherein the door closing speed testing device comprises an air cylinder and a compressed air source, the air cylinder comprises a piston, a first switch device used for controlling input and output of air is arranged at one end, far away from the piston, of the air cylinder, a second switch device used for controlling input and output of the air is arranged at one end, close to the piston, of the air cylinder, the compressed air source is respectively communicated with the first switch device and the second switch device through pipelines, an air pressure regulator, a barometer, a valve body and a control module used for controlling the flowing direction of the compressed air are arranged on the pipelines, and the control module is respectively electrically. According to the door closing speed testing device and method provided by the invention, the output door closing force can be adjusted according to different weights of different types of doors, so that the closing speed of the doors is kept constant, and the accuracy of detection is ensured.
Description
Technical Field
The invention relates to the technical field of automobile performance testing, in particular to a door closing speed testing device and a door closing speed testing method.
Background
Door closure is a significant problem in automotive quality control. At present, some whole car factories also use a mode of manually testing the door closing speed of the car, the testing mode needs to arrange at least three persons on an inspection post, and the persons need to perform motion training of door closing operation before the post so as to increase the proficiency of the inspection persons in controlling the door closing force. However, in the actual inspection, the door closing pushing speed is mainly determined by the supervisor of the staff, and vehicles with door closing speed not meeting the requirement are likely to flow into the market.
At the present stage, a door closing speed testing device is adopted by a whole car factory to carry out quantitative testing and analysis on the closing of a car door. The door closing speed testing device is a tool for detecting whether the door closing speed meets the design requirements by pushing the vehicle door.
The existing door closing speed testing device pushes a vehicle door to close with constant thrust, and whether the closing speed of the vehicle door meets the requirement or not is judged by detecting whether the vehicle door is completely closed under the thrust. However, the weights of the doors of different vehicle types are different, and if the doors are pushed by the same thrust, it is difficult to ensure that the closing speed of the doors of each vehicle type is maintained within a constant range, which easily results in inaccurate test results and large error range. And the detection steps using the door closing speed testing device are complicated, and the time consumption is long.
Disclosure of Invention
The invention aims to provide a door closing speed testing device and a door closing speed testing method, wherein the output door closing force can be adjusted according to different weights of different types of doors, so that the closing speed of each door is kept constant, and the detection accuracy is ensured.
In order to achieve the above object, an embodiment of the present invention provides a door closing speed testing apparatus, including a cylinder and a compressed air source, where the cylinder includes a piston, a first switch device for controlling input and output of air is disposed at one end of the cylinder, which is far away from the piston, a second switch device for controlling input and output of air is disposed at one end of the cylinder, which is close to the piston, the compressed air source is respectively communicated with the first switch device and the second switch device through a pipeline, a pneumatic regulator, a barometer, a valve body and a control module for controlling a flow direction of compressed air are disposed on the pipeline, the control module is respectively electrically connected with the valve body and an external power supply, an input end of the pneumatic regulator is communicated with the compressed air source,
the valve body at least comprises an inlet end, a first outlet end and a second outlet end, the inlet end is communicated with the output end of the air pressure regulator, the first outlet end is communicated with the first switch device, the second outlet end is communicated with the second switch device,
in a working state, the control module controls the first outlet end of the valve body to be opened and the second outlet end of the valve body to be closed, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts the air, the piston extends forwards under the influence of the flow direction of the air flow and contacts with a vehicle door to complete the door closing action,
the control module controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
Preferably, the pipeline is further provided with an oil-water filter.
Preferably, the pipeline is further provided with an oil atomizer, the input end of the oil atomizer is communicated with the output end of the oil-water filter, and the output end of the oil atomizer is connected with the inlet end of the valve body.
Preferably, the device further comprises a moving trolley, and the air cylinder is arranged on the moving trolley.
Preferably, the trolley further comprises a height adjusting support, the height adjusting support is located on the moving trolley, and the air cylinder is fixedly connected to the height adjusting support.
As a preferable scheme, the height adjusting bracket comprises a turntable, a transmission assembly and a lifting plate, the turntable is connected with the transmission assembly, the transmission assembly is connected with the lifting plate, the cylinder is fixedly connected on the lifting plate,
under the working state, the turntable rotates and drives the transmission assembly to rotate, so that the lifting plate moves up and down to realize the change of the height of the cylinder.
As a preferable scheme, the height adjusting bracket further comprises a fixed frame which is fixedly connected to the movable trolley, the upper end of the fixed frame is provided with a through hole,
the transmission assembly comprises a screw rod and a thread screw sleeve, the upper end of the screw rod penetrates through the through hole to be fixedly connected with the bottom of the rotary table, the lower end of the screw rod is rotatably connected with the bottom of the inner wall of the fixed frame, the thread screw sleeve is in threaded connection with the screw rod and is positioned in the fixed frame, the thread screw sleeve is fixedly connected with the lifting plate,
under the working state, the turntable rotates to drive the screw rod to rotate, the threaded screw sleeve is made to move up and down in the fixing frame and drive the lifting plate to ascend or descend, and therefore the height of the air cylinder is adjusted.
Preferably, the control module comprises a control relay and a cylinder starting button,
the control relay is respectively and electrically connected with the cylinder starting button, the valve body and an external power supply, the valve body is respectively and electrically connected with the cylinder starting button and the external power supply, the cylinder starting button is electrically connected with the external power supply,
in a working state, when the cylinder starting button is pressed down, the control relay controls the first outlet end of the valve body to be opened, the second outlet end of the valve body to be closed, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of air flow, and contacts with a vehicle door to complete the door closing action,
after the cylinder starting button is loosened, the control relay controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
In order to solve the same problem, an embodiment of the present invention further provides a method for using the door closing speed testing apparatus according to the above technical solution, including the following steps:
step 1: opening the detected vehicle door;
step 2: the control module controls a first outlet end of the valve body to be opened and a second outlet end of the valve body to be closed, a compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of air flow, and the piston contacts with a vehicle door to complete the door closing action;
and step 3: the control module controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow;
and 4, step 4: and judging whether the door closing speed of the vehicle door meets the requirement or not by checking whether the vehicle door is closed or not.
As a preferred scheme, the step 2 specifically comprises: the first outlet end of the valve body is opened and the second outlet end is closed by pressing down the cylinder starting button, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of the air flow, the piston contacts with the vehicle door to finish the door closing action,
after the cylinder starting button is loosened, the control relay controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
To sum up, the device and the method for testing the door closing speed provided by the embodiment of the invention have the following advantages:
1. the flow direction of compressed gas is changed by controlling the control module, so that the piston extends forwards under the action of airflow to touch the car door and retracts to recover the original position;
2. the pipeline is provided with an oil-water filter and an oil atomizer, so that the compressed air can contain oil while impurities in the compressed air are filtered, parts in the door closing speed testing device are prevented from rusting, and an executing element is lubricated;
3. the bottom of the cylinder is provided with a movable trolley and a height adjusting support, and a worker can adjust the position of a cylinder piston in the horizontal direction and the vertical direction according to actual conditions to ensure that the piston is aligned with a vehicle door handle.
Drawings
Fig. 1 is a schematic structural diagram of a door closing speed testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a height adjustment bracket provided in an embodiment of the present invention;
FIG. 3 is a circuit diagram related to a control module provided by an embodiment of the invention;
fig. 4 is a flowchart of a method for using the door closing speed testing apparatus according to an embodiment of the present invention.
Reference numerals:
1. the device comprises a cylinder, 2, a compressed air source, 3, a piston, 4, a first switch device, 5, a second switch device, 6, a pipeline, 7, a control relay, 8, an oil-water filter, 9, an oil atomizer, 10, an air pressure regulator, 11, a barometer, 12, a moving trolley, 13, a height adjusting support, 131, a rotary table, 132, a transmission assembly, 1321, a screw rod, 1322, a threaded screw sleeve, 133, a lifting plate, 134, a fixing frame, 135, a hinge base, 1351, a first supporting rod, 1352, a second supporting rod, 1353, a movable piece, 14, a valve body, 15 and a cylinder starting button.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "vertical", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides a door closing speed testing apparatus, which includes a cylinder 1 and a compressed air source 2, wherein the cylinder 1 includes a piston 3, one end of the cylinder 1, which is far away from the piston 3, is provided with a first switch device 4 for controlling input and output of air, one end of the cylinder 1, which is close to the piston 3, is provided with a second switch device 5 for controlling input and output of air, the compressed air source 2 is respectively communicated with the first switch device 4 and the second switch device 5 through a pipeline 6, the pipeline 6 is provided with an air pressure regulator 10, a barometer 11, a valve body 14 and a control module for controlling a flow direction of compressed air, the control module respectively connects the valve body 14 with an external power supply, an input end of the air pressure regulator 10 is communicated with the compressed air source 2, the valve body 14 at least includes an inlet end, a first outlet end and a second outlet end, the first outlet end is communicated with the first switch device 4, the second outlet end is communicated with the second switch device 5, in the working state, the first outlet end of the control module control valve body 14 is opened, the second outlet end is closed, the compressed air source 2 inputs the compressed air into the first switch device 4, the second switch device 5 exhausts the air, the piston 3 extends forwards under the influence of the flow direction of the air flow, the piston 3 contacts with a vehicle door to complete the door closing action, the first outlet end of the control module control valve body 14 is closed, the second outlet end is opened, the compressed air source 2 inputs the compressed air into the second switch device 5, the first switch device 4 exhausts the air, and the piston 3 resets under the influence of the flow direction of the air flow.
Based on the technical scheme, when the door closing speed testing device provided by the embodiment of the invention is used, a worker opens a vehicle door, the control module controls compressed air to be input into the first switch device 4 from the compressed air source 2 through the pipeline 6 through the first outlet end of the valve body 14, meanwhile, the second switch device 5 is exhausted, at the moment, the compressed air flow in the cylinder 1 flows to the second switch device 5 from the first switch device 4, the piston 3 extends forwards under the action of the air flow, and the piston 3 is in contact with the outer side plane position of a vehicle door handle and pushes the vehicle door to close. In this example, the standard door-closing speed was set to 1.35 m/s. And judging whether the closing speed of the detected vehicle door is qualified or not by observing whether the vehicle door is completely closed or not at the speed, wherein if the vehicle door is completely closed, the closing speed of the vehicle door meets the standard, and if not, the vehicle door is judged to fail in detection. After the door closing action is completed, the staff controls the control module to enable compressed air to pass through the second outlet end of the valve body 14 from the compressed air source 2 through the pipeline 6 and input into the second switch device 5, and simultaneously enable the first switch device 4 to exhaust, at the moment, the compressed air flow in the cylinder 1 flows to the first switch device 4 from the second switch device 5. The device inputs compressed air to the cylinder 1 to complete the actions of closing the door and resetting by changing the direction of air flow, so that the accuracy of the door closing speed test is improved, and the error is small.
In this embodiment, the valve body 14 is a pneumatic solenoid valve, and the operator can control the outlet position of the air flow by adjusting the valve body 14, so as to control the air flow to flow into the cylinder 1 from the first switch device 4, and the second switch device 5 automatically exhausts in response to the air pressure change, or control the air flow to flow into the cylinder 1 from the second switch device 5, and the first switch device 4 automatically exhausts in response to the air pressure change inside itself, so as to complete the extending or resetting operation of the piston 3.
In the present embodiment, the first switch device 4 and the second switch device 5 are both fluid control valves (refer to the patent with publication number CN 105518310B), and the first switch device 4 and the second switch device 5 can adjust the gas inlet and outlet direction according to the change of the internal gas pressure of the device, and can also finely adjust the gas flow pressure entering the cylinder 1. In other embodiments, the first switch device 4 and the second switch device 5 may also be a flow control valve formed by a one-way valve and a throttle valve in parallel, the flow control valve may also be used for controlling the moving speed of the cylinder 1, so called speed control valve, and the specific model of the valve body is ASV 510F. In practical applications, the first switch device 4 and the second switch device 5 may be other switches or valve bodies as long as the purpose of automatically changing the air inlet and outlet directions of the air cylinder 1 according to the air pressure change inside the first switch device 4 and the second switch device 5 is achieved. If the conditions limit, the first switch device 4 and the second switch device 5 may also be three-way valves, but when the control module is regulated and controlled by a worker, the three-way valves need to be synchronously adjusted, so that the first switch device 4 and the second switch device 5 smoothly intake or exhaust air, and the piston 3 can extend or reset.
To meet different requirements, the gas pressure delivered to the duct 6 from the compressed air source 2 is generally greater than the operating pressure of the cylinder 1. The pipe 6 is provided with an air pressure regulator 10 for regulating the pressure of the air flow input into the cylinder 1 by the first switching device 4 or the second switching device 5. The door closing speed of the automobile is related to the self weight and the thrust force applied to the door. Due to the difference in the weight of the doors of different vehicle types, to ensure that the closing speed of the doors is maintained at a constant value, the thrust acting on the doors needs to be adjusted according to the weight of the different doors, that is, the pressure regulator 10 needs to be used to adaptively adjust the pressure of the air flow input into the cylinder 1. Before the door closing speed is tested, a worker adjusts the air pressure input into the air cylinder 1 to adapt to different vehicle types, and the pipeline 6 is provided with a barometer 11 as a tool for monitoring and managing air pressure regulation.
In the present embodiment, the longitudinal sectional shape of the piston 3 is H-shaped, the piston 3 includes a first end portion, a second end portion contacting the door, and a connecting rod connecting the first end portion and the second end portion, the first end portion is located in the cylinder 1, the longitudinal sectional shape thereof is rectangular, and the cross sectional area of the first end portion is larger than that of the connecting rod. When the air flow flows from the second switch device 5 to the first switch device 4, the first end of the piston 3 is pushed to the side connected with the connecting rod, so that the piston 3 is restored under the pushing of the air flow.
Preferably, the compressed air source 2 comes from an air compressor, the duct 6 being connected to the outlet of the air compressor. In practical use, the compressed air source 2 may be other devices such as an air tank or a compressed air pump, but is not limited to this example.
In addition, an oil-water filter 8 is arranged on the pipeline 6. In view of the possibility of moisture in the compressed air, the oil-water filter 8 can separate impurities such as moisture and oil condensed in the compressed air, so that the compressed air is primarily purified. The oil-water separator 8 separates water from the gas to prevent other actuators in the closing speed testing device from rusting. If the oil-water separator 8 is lacked, impurities exist in the pipeline, and unstable fluctuation of air pressure in the pipeline is caused. The pipeline is also provided with an oil atomizer 9, the input end of the oil atomizer 9 is communicated with the output end of the oil-water filter 9, and the output end of the oil atomizer 9 is connected with the inlet end of the valve body 14. The oil atomizer 9 can convey oil-containing compressed air to other actuators to lubricate the actuators.
The door closing speed testing device provided by the embodiment of the invention further comprises a movable trolley 12, and the air cylinder 1 is arranged on the movable trolley 12. The trolley 12 can make the door closing speed testing device slide on the flat ground, so as to move in the horizontal direction.
Furthermore, the door closing speed testing device provided by the embodiment of the invention further comprises a height adjusting support 13, the height adjusting support 13 is positioned on the movable trolley 12, and the air cylinder 1 is fixedly connected to the height adjusting support 13, so that a worker can conveniently adjust the height of the door closing speed testing device according to different vehicle types, and the application universality of the door closing speed testing device is improved.
Specifically, height adjustment support 13 includes carousel 131, transmission assembly 132 and lifter plate 133, and carousel 131 is connected with transmission assembly 132, and transmission assembly 132 is connected with lifter plate 133, and the cylinder fixed connection is on lifter plate 133, and under operating condition, carousel 131 rotates and drives transmission assembly 132 and rotate for lifter plate 133 reciprocates, in order to realize the change of cylinder height. Because the height of the door handles of different vehicle types is different, when the door closing speed is tested, a worker can rotate the transmission assembly 132 by rotating the rotary disc 131 to drive the lifting plate 133 to move up and down, so that the height of the piston is adjusted. The height adjusting bracket 13 further comprises a fixing frame 134, the fixing frame 134 is fixedly connected to the moving trolley, a through hole is formed in the upper end of the fixing frame 134, the transmission assembly 132 comprises a screw rod 1321 and a threaded screw sleeve 1322, the upper end of the screw rod 1321 penetrates through the through hole to be fixedly connected with the bottom of the rotary table 131, the lower end of the screw rod 1321 is rotatably connected with the bottom of the inner wall of the fixing frame 134, the threaded screw sleeve 1322 is in threaded connection with the screw rod 1321 and is located in the fixing frame 134, the threaded screw sleeve 1322 is fixedly connected with the lifting plate 133, in a working state, the rotary table 131 rotates to drive the screw rod 1321 to rotate, the threaded screw sleeve 1322 is made to move up and down in the fixing frame 134 and. In the present embodiment, the longitudinal cross-sectional shape of the fixing frame 134 is Contraband. The staff can make the lead screw 1321 rotate through rotating the carousel 131 for the screw thread cover 1322 reciprocates on the lead screw 1321 and drives the lifting plate 133 and the cylinder 1 that is located on the lifting plate 133 to rise or descend, thereby realizes the removal of the speed testing arrangement of closing the door in the vertical direction, makes the piston 3 can contact the door handle of different heights, and this speed testing arrangement of closing the door can check the speed of closing the door of different motorcycle types.
In this embodiment, the height adjusting bracket 13 further includes a hinge base 135, wherein the top of the hinge base 135 is fixedly connected to the bottom of the lifting plate 133, and the bottom of the hinge base 135 is fixedly connected to the top of the mobile cart 12. The hinge base 135 comprises at least two support rods, preferably, the hinge base 135 comprises two support rods, which can be marked as a first support rod 1351 and a second support rod 1352, the first support rod 1351 and the second support rod 1352 are arranged on the top of the mobile cart 12 in a crossed manner, the middle part of the first support rod 1351 and the middle part of the second support rod 1352 are rotatably connected through a movable piece 1353, the first end of the first support rod 1351 is connected with the bottom of the lifting plate 133, the second end of the first support rod 1351 is connected with the top of the mobile cart 12, the first end of the second support rod 1352 is connected with the bottom of the lifting plate 133, and the second end of the second support rod 1352 is connected with the top of the mobile cart 12. When the lifting plate 133 moves up and down, the hinge base 135 is lifted up and down. In this embodiment, moveable member 1353 may be a hinge or other pivoting member.
Particularly, the control module comprises a control relay 7 and a cylinder starting button 15, the control relay 7 is respectively electrically connected with the cylinder starting button 15, a valve body 14 and an external power supply, the valve body 14 is respectively electrically connected with the cylinder starting button 15 and the external power supply, the cylinder starting button 15 is electrically connected with the external power supply, in a working state, when the cylinder starting button 15 is pressed, the control relay 7 controls a first outlet end of the valve body 14 to be opened and a second outlet end of the valve body 14 to be closed, a compressed air source 2 is controlled to input compressed air into a first switch device 4, a second switch device 5 exhausts air, a piston 3 extends forwards under the influence of the flow direction of air flow, the piston 3 contacts with a vehicle door to finish the door closing action, after the cylinder starting button 15 is released, the control relay 7 controls the first outlet end of the valve body 14 to be closed and the second outlet end to be opened, the compressed, the first switching device 4 is vented and the piston 3 is reset under the influence of the flow direction of the air flow. The door closing speed testing device provided by the embodiment of the invention controls the air passage through the circuit and realizes the extension and the reset of the piston 3 by changing the direction of the air flow. When the valve body 14 is not energized, the first outlet of the valve body 14 is in a closed state, the second outlet is in an open state, and gas is input from the inlet of the valve body 14 and output from the second outlet. When energized, the first outlet port of the valve body 14 is in an open state and the second outlet port is in a closed state, and gas is input from the inlet port of the valve body 14 and output from the first outlet port. The control relay 7 functions to control the opening or closing of the first outlet port and the second outlet port of the valve body 14. In this embodiment, as shown in the circuit diagram of the control module shown in fig. 3, the circuit includes two parallel branches, namely a control relay branch including the control relay 7 and a valve body branch including the valve body 14, and both the control relay branch and the valve body branch are electrically connected to an external power supply. The cylinder starting button 15 is equivalent to a change-over switch, when the cylinder starting button 15 is pressed, the valve body branch is electrified, the control relay branch is powered off, compressed air is conveyed to the first switch device 4 under the action of the valve body 14, the second switch device 5 automatically exhausts, and the piston 3 extends forwards under the driving of airflow. After the cylinder starting button 15 is loosened, the valve body branch is powered off, the control relay branch is powered on, the control relay 7 controls the first outlet end of the valve body 14 to be closed, the second outlet end of the valve body is started, compressed air is conveyed to the second switch device 5 under the action of the control relay 7, the first switch device 4 automatically exhausts, and the piston 3 resets.
As shown in fig. 4, to solve the same problem, an embodiment of the present invention further provides a method for using the door closing speed testing apparatus, including the following steps:
step 1: opening the detected vehicle door;
step 2: the control module controls the first outlet end of the valve body 14 to be opened and the second outlet end of the valve body to be closed, the compressed air source 2 inputs compressed air into the first switch device 4, the second switch device 5 exhausts the air, the piston 3 extends forwards under the influence of the flow direction of the air flow, and the piston 3 contacts with a vehicle door to finish the door closing action;
and step 3: the control module controls the first outlet end of the valve body 14 to be closed, the second outlet end of the valve body is opened, the compressed air source 2 inputs compressed air into the second switch device 5, the first switch device 4 exhausts air, and the piston 3 is reset under the influence of the flow direction of the air flow;
and 4, step 4: whether the door closing speed of the vehicle door meets the requirement or not is judged by checking whether the vehicle door is closed or not.
According to the method for testing the door closing speed, provided by the embodiment of the invention, the piston 3 is pushed by airflow, so that the piston 3 can move back and forth as required, and the aims of pushing the door and resetting are fulfilled. Whether the closing speed of the vehicle door meets the requirement or not is judged by detecting whether the vehicle door is closed under the pushing of the piston 3 or not.
Preferably, step 2 specifically comprises: pressing cylinder start button 15, the first exit end of valve body 14 is opened, the second exit end is closed, compressed air source 2 inputs compressed air toward first switching device 4, second switching device 5 exhausts, piston 3 is stretched out forward by the flow direction influence of air current, piston 3 contacts the door in order to accomplish the action of closing the door, after loosening cylinder start button 15, control relay 7 controls the first exit end of valve body 14 and closes, the second exit end is opened, compressed air source 2 inputs compressed air toward second switching device 5, first switching device 4 exhausts, piston 3 is reset by the flow direction influence of air current. In the embodiment of the invention, the opening or closing of the first outlet end and the second outlet end of the valve body 14 is controlled by a circuit, so that the airflow direction is changed, the piston 3 extends out at a certain speed under the action of fluid, the door of the vehicle is touched and pushed to close, and the automatic resetting action is completed.
In this embodiment, the method of using the door closing speed testing apparatus specifically includes the following steps: the movable trolley 12 is pushed to a specified test position, the turntable 131 is rotated according to the height of the vehicle door handle of the vehicle to be tested, the screw rod 1321 rotates and drives the threaded screw sleeve 1322 to move up and down in the fixed frame 134, the lifting plate 133 and the hinge base 135 rise or fall along with the threaded screw sleeve, and the height of the piston 3 is consistent with the height of the plane position outside the vehicle door handle. The staff opens the door that awaits measuring, presses cylinder start button 15, and the valve body branch road circular telegram controls relay branch road outage, and the first exit end of valve body 14 is opened, and the second exit end is closed, makes compressed air source 2 input compressed gas toward first switching device 4. The compressed gas passes through an oil-water filter 8 in the conduit 6, the moisture in the gas being filtered out. The operator can control the closing speed of the door within 1.35m/s by adjusting the gas pressure regulator 10 to control the pressure of the compressed gas at a designated value according to the weight of the door of the vehicle to be tested and other factors. The pipeline 6 for conveying gas is provided with a barometer 11 which can be used for detecting the pressure value in the pipeline 6 and assisting the staff to adjust the pressure regulator 10. The gas also passes through the oil mist device 9 in the pipeline 6, and the required lubricant is added into other parts such as the first switch device 4, the second switch device 5 and the cylinder 1. First switching device 4 receives the air current effect to carry compressed air in toward cylinder 1, and second switching device 5 receives the atmospheric pressure influence during self-bleeding to atmospheric environment, and piston 3 stretches out forward under the promotion of air current, touches the door, judges whether this door passes through the speed test of closing the door through observing whether the door is in good condition closed. The staff can also fine-tune the air pressure in the pipe 6 by adjusting the first and second switching devices 4, 5. The staff loosens cylinder start button 15, and control relay branch road circular telegram, and the valve body branch road cuts off the power supply, and control relay 7 is opened, and the first exit end of valve body 14 is closed, and the second exit end is opened, makes compressed air source 2 to the gas transmission in second switching device 5, and likewise, gas also passes through spare parts such as oil water filter 8 and oil atomizer 9, and first switching device 4 exhausts to the atmospheric environment, and the normal position resumes under the air current effect of piston 3.
To sum up, the device and the method for testing the door closing speed provided by the embodiment of the invention have the following advantages:
the flow direction of compressed gas is changed by controlling the control module, so that the piston extends forwards under the action of airflow to touch the car door and retracts to recover the original position;
the pipeline is provided with an oil-water filter and an oil atomizer, so that the compressed air can contain oil while impurities in the compressed air are filtered, parts in the door closing speed testing device are prevented from rusting, and an executing element is lubricated;
the bottom of the cylinder is provided with a movable trolley and a height adjusting support, and a worker can adjust the position of a cylinder piston in the horizontal direction and the vertical direction according to actual conditions to ensure that the piston is aligned with a vehicle door handle.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a speed testing arrangement closes door which characterized in that: the device comprises a cylinder and a compressed air source, wherein the cylinder comprises a piston, a first switch device for controlling gas input and output is arranged at one end, far away from the piston, of the cylinder, a second switch device for controlling gas input and output is arranged at one end, close to the piston, of the cylinder, the compressed air source is respectively communicated with the first switch device and the second switch device through a pipeline, a gas pressure regulator, a gas pressure gauge, a valve body and a control module for controlling the flow direction of compressed air are arranged on the pipeline, the control module is respectively electrically connected with the valve body and an external power supply, the input end of the gas pressure regulator is communicated with the compressed air source,
the valve body at least comprises an inlet end, a first outlet end and a second outlet end, the inlet end is communicated with the output end of the air pressure regulator, the first outlet end is communicated with the first switch device, the second outlet end is communicated with the second switch device,
in a working state, the control module controls the first outlet end of the valve body to be opened and the second outlet end of the valve body to be closed, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts the air, the piston extends forwards under the influence of the flow direction of the air flow and contacts with a vehicle door to complete the door closing action,
the control module controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
2. The door-closing velocity testing apparatus of claim 1, wherein: an oil-water filter is further arranged on the pipeline.
3. The door-closing velocity testing apparatus of claim 2, wherein: the pipeline is also provided with an oil atomizer, the input end of the oil atomizer is communicated with the output end of the oil-water filter, and the output end of the oil atomizer is connected with the inlet end of the valve body.
4. A door closing speed testing device according to any one of claims 1 to 3, wherein: the pneumatic device is characterized by further comprising a moving trolley, wherein the air cylinder is arranged on the moving trolley.
5. The door-closing velocity testing apparatus of claim 4, wherein: the height adjusting device is characterized by further comprising a height adjusting support, the height adjusting support is located on the moving trolley, and the air cylinder is fixedly connected to the height adjusting support.
6. The door-closing velocity testing apparatus of claim 5, wherein: the height adjusting bracket comprises a turntable, a transmission component and a lifting plate, the turntable is connected with the transmission component, the transmission component is connected with the lifting plate, the cylinder is fixedly connected on the lifting plate,
under the working state, the turntable rotates and drives the transmission assembly to rotate, so that the lifting plate moves up and down to realize the change of the height of the cylinder.
7. The door-closing velocity testing apparatus of claim 6, wherein: the height adjusting bracket also comprises a fixed frame which is fixedly connected on the movable trolley, the upper end of the fixed frame is provided with a through hole,
the transmission assembly comprises a screw rod and a thread screw sleeve, the upper end of the screw rod penetrates through the through hole to be fixedly connected with the bottom of the rotary table, the lower end of the screw rod is rotatably connected with the bottom of the inner wall of the fixed frame, the thread screw sleeve is in threaded connection with the screw rod and is positioned in the fixed frame, the thread screw sleeve is fixedly connected with the lifting plate,
under the working state, the turntable rotates to drive the screw rod to rotate, the threaded screw sleeve is made to move up and down in the fixing frame and drive the lifting plate to ascend or descend, and therefore the height of the air cylinder is adjusted.
8. The door-closing velocity testing apparatus of claim 4, wherein: the control module comprises a control relay and a cylinder starting button,
the control relay is respectively and electrically connected with the cylinder starting button, the valve body and an external power supply, the valve body is respectively and electrically connected with the cylinder starting button and the external power supply, the cylinder starting button is electrically connected with the external power supply,
in a working state, when the cylinder starting button is pressed down, the control relay controls the first outlet end of the valve body to be opened, the second outlet end of the valve body to be closed, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of air flow, and contacts with a vehicle door to complete the door closing action,
after the cylinder starting button is loosened, the control relay controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
9. A method of using the door closing velocity testing apparatus of any of claims 1-8, wherein: the method comprises the following steps:
step 1: opening the detected vehicle door;
step 2: the control module controls a first outlet end of the valve body to be opened and a second outlet end of the valve body to be closed, a compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of air flow, and the piston contacts with a vehicle door to complete the door closing action;
and step 3: the control module controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow;
and 4, step 4: and judging whether the door closing speed of the vehicle door meets the requirement or not by checking whether the vehicle door is closed or not.
10. The door-closing velocity testing method of claim 9, wherein: the step 2 specifically comprises the following steps: the first outlet end of the valve body is opened and the second outlet end is closed by pressing down the cylinder starting button, the compressed air source inputs compressed air into the first switch device, the second switch device exhausts air, the piston extends forwards under the influence of the flow direction of the air flow, the piston contacts with the vehicle door to finish the door closing action,
after the cylinder starting button is loosened, the control relay controls the first outlet end of the valve body to be closed, the second outlet end of the valve body to be opened, the compressed air source inputs compressed air into the second switch device, the first switch device exhausts air, and the piston is reset under the influence of the flow direction of air flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654712.XA CN111380696A (en) | 2018-12-29 | 2018-12-29 | Door closing speed testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654712.XA CN111380696A (en) | 2018-12-29 | 2018-12-29 | Door closing speed testing device and method |
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| CN111380696A true CN111380696A (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341311A (en) * | 2021-05-31 | 2021-09-03 | 格力电器（郑州）有限公司 | Power switch detection system, method, device, equipment and readable storage medium |
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2018
- 2018-12-29 CN CN201811654712.XA patent/CN111380696A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341311A (en) * | 2021-05-31 | 2021-09-03 | 格力电器（郑州）有限公司 | Power switch detection system, method, device, equipment and readable storage medium |
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