CN111272400A - Vehicle-mounted switch test device - Google Patents
Vehicle-mounted switch test device Download PDFInfo
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- CN111272400A CN111272400A CN202010106411.4A CN202010106411A CN111272400A CN 111272400 A CN111272400 A CN 111272400A CN 202010106411 A CN202010106411 A CN 202010106411A CN 111272400 A CN111272400 A CN 111272400A
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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
Abstract
The invention discloses a vehicle-mounted switch test device which comprises a power output device, a tested switch module and a spring loading device. The spring loading device is connected with the power output device and comprises a spring loading device support and a spring loading unit, the spring loading device support is connected with the power output device, and the spring loading unit is arranged on the spring loading device support. The spring loading unit includes: the spring pipe is sleeved on the spring pipe sleeve on the spring loading device bracket; the tail part of the ejector pin is arranged in the head end of the spring pipe sleeve through the boss, and the head part of the ejector pin is arranged outside the spring pipe sleeve and can move relative to the spring pipe sleeve along the axial direction of the spring pipe sleeve; the spring is arranged in the spring pipe sleeve; the spring adjusting bolt is connected with the tail end of the spring pipe sleeve so as to adjust the compression stroke of the spring; and the adjusting nut is connected with the spring adjusting bolt. The power output device drives the spring loading device to move towards or away from the direction of the tested switch module, and the spring loading unit applies loading force to the tested switch.
Description
Technical Field
The invention relates to a test device, in particular to a switch test device.
Background
The vehicle-mounted switch is used as a component for controlling the automobile, can be used for controlling multiple functions on the automobile, and plays a very important role in the automobile. Therefore, the vehicle-mounted switch is required to be subjected to an endurance test before being used so as to test the endurance of the vehicle-mounted switch, so that the quality of the vehicle-mounted switch is conveniently controlled, and faults are prevented during use.
At present, the general comparison complicacy of current switch endurance test device structure when the measurement to some different grade type switches, often has the problem that can't match the usefulness, and the later stage is comparatively difficult to test device's maintenance and maintenance.
In addition, the conventional switch endurance testing device is greatly influenced by the environment, and when the conventional switch endurance testing device is in a bad environment, the switch endurance testing device is easily influenced, and the switch endurance testing is further influenced.
In view of this, it is desirable to obtain a switch endurance test apparatus having a simple structure, simple and convenient maintenance, less environmental impact, and strong applicability, thereby facilitating a test of the endurance of the switch.
Disclosure of Invention
The invention aims to provide a vehicle-mounted switch test device which is simple in structure, convenient to use, simple and convenient to maintain, small in environmental influence, capable of effectively performing durability tests on different types of switches and very wide in applicability. The problems of complex structure, low applicability, large environmental influence and difficult maintenance of the existing switch endurance test device are solved.
In order to achieve the above object, the present invention provides an on-vehicle switch test device, including:
a power take-off;
a switch under test module comprising a switch under test;
a spring-loaded device connected with the power take-off, the spring-loaded device comprising: a spring-loaded device support connected with the power take-off; the spring loading unit is arranged on the spring loading device bracket; wherein the spring loading unit comprises: the spring pipe sleeve is arranged on the spring loading device bracket; the tail part of the ejector pin is arranged inside the head end of the spring pipe sleeve through a boss, the head part of the ejector pin is arranged outside the spring pipe sleeve, and the ejector pin can move relative to the spring pipe sleeve along the axial direction of the spring pipe sleeve; the spring is arranged in the spring pipe sleeve; the spring adjusting bolt is connected with the tail end of the spring pipe sleeve so as to adjust the compression stroke of the spring; an adjusting nut connected with the spring adjusting bolt;
the power output device drives the spring loading device to move towards or away from the direction of the switch module to be tested, and the spring loading unit applies loading force to the switch to be tested.
In the above scheme of the present invention, the inventor creatively designs a spring loading device, and adopts the spring characteristic as a force loading mode, so as to provide the loading force required by the switch test and meet the test requirements. The spring has the function of automatic reset, and compared with the existing switch test device, the structure of the device is further simplified. In addition, the spring loading device has small influence on the loading force applied to the tested switch by the environment of temperature and humidity, can play a role in overload protection when the motor is out of step, and is relatively simple and convenient to maintain in the later period. When endurance tests are carried out on different types of switches, the requirements of the endurance tests of the different types of switches on the operating force can be met only by replacing the spring in the spring loading device, so that the endurance tests of the different types of switches are realized by the vehicle-mounted switch test device, and the applicability of the vehicle-mounted switch test device is greatly improved.
Further, in the vehicle-mounted switch testing device of the present invention, the spring loading unit further includes a nylon cap, which is sleeved on the head of the thimble, and the nylon cap is used for contacting with the switch to be tested.
In the technical scheme of the invention, the nylon cap can protect the switch to be tested, prevent the surface of the switch to be tested from being scratched by metal in the test process, avoid direct contact with the metal and play a role in flexible contact.
Further, in the vehicle-mounted switch test device according to the present invention, the head portion of the nylon cap has a spherical surface portion.
In the scheme, the part of the nylon cap is processed into the spherical surface part, so that the spring loading device and the surface of the switch to be tested are in point contact, and the stress central point of the calibration spring loading device and the switch is more accurate. Further, the point contact can be applied to various irregular switch surfaces having inclined or arc-shaped surfaces.
Further, in the vehicle-mounted switch test device according to the present invention, the spring-loading device further includes:
the guide rail clamping support is provided with a guide rail;
the bearing can slide along the guide rail and is arranged on the guide rail, and the bearing is connected with the spring loading device bracket;
and one end of the push rod is connected with the power output device, and the other end of the push rod is connected with the spring loading device bracket.
Further, in the vehicle-mounted switch test device of the present invention, the power output device includes an insulation can and a motor disposed in the insulation can, and an output shaft of the motor is connected to the spring loading device.
In the above technical solution of the present invention, it should be noted that, the heat insulation box is creatively designed in the power output device, and the heat insulation box can provide a temperature within a rated working temperature range of the motor for the motor, so that the motor can normally work within the rated working temperature range of the motor, and the possible influence caused by external environmental factors is effectively avoided.
Further, in the vehicle-mounted switch test device according to the present invention, the heat insulation box includes a heat insulation outer layer and a heat insulation inner layer.
Further, in the vehicle-mounted switch test device of the present invention, an air inlet hole connected to the air inlet duct and an air outlet hole connected to the air outlet duct are provided on one side surface of the heat-insulating box.
Further, in the vehicle-mounted switch test device of the present invention, the air intake and the air discharge opening are disposed at both ends of a diagonal line of the side surface; and/or the periphery of the air inlet pipeline and/or the exhaust pipeline is provided with an insulating layer.
In the above technical solution of the present invention, it should be noted that the air inlet and the air outlet are arranged diagonally in the above manner, because the air circulation in the thermal insulation box is considered to be more sufficient, and the cooling and thermal insulation effects of the compressed air on the internal space of the thermal insulation box are fully utilized. The heat preservation layer arranged on the periphery of the air inlet pipeline and/or the exhaust pipeline can effectively keep the temperature of air in the pipe, and the normal performance of the function of the heat preservation box is ensured.
Further, in the vehicle-mounted switch test device of the present invention, the tested switch module further includes:
a slider bracket;
the sliding block is arranged on the sliding block bracket and can slide in the vertical direction along the sliding block bracket;
the head of the sliding block adjusting bolt is provided with a connecting groove, and the sliding block adjusting bolt is in threaded connection with the sliding block bracket;
the pin is in threaded connection with the sliding block, and the tail part of the pin is correspondingly arranged in the connecting groove of the sliding block adjusting bolt;
the switch clamp module is provided with the switch to be tested and arranged on the sliding block;
the slider adjusting bolt linearly moves in the vertical direction relative to the slider support through rotation of the slider adjusting bolt, and then the slider is driven to linearly move in the vertical direction relative to the slider support through the pin.
In the technical scheme of the invention, the linear movement of the sliding block relative to the sliding block support in the vertical direction can be effectively controlled, so that the position of the switch to be tested is adjusted and controlled, and the calibration spring loading device and the center of the switch to be tested are more accurate and convenient.
Further, in the vehicle-mounted switch test device, a vertically extending groove is formed in the slider bracket; and one end of the locking bolt penetrates through the groove, and the other end of the locking bolt is connected with the sliding block so as to lock the height position of the sliding block relative to the sliding block bracket.
Further, in the on-vehicle switch test device according to the present invention, the switch clamp module includes: the switch to be tested is arranged between the switch clamp base and the pressing plate; and a flexible layer is arranged on the surface of the pressing plate, which is in contact with the switch to be tested.
In some embodiments, the flexible layer may comprise a sheet of silicone.
Among the above-mentioned scheme, the flexible layer can protect the fish tail of being surveyed the switch surface and avoiding the clamp plate to play the purpose of flexible contact, further improve the switch anchor clamps module and to the centre gripping fixed ability of being surveyed the switch, prevent to be surveyed the switch and in experimental in-process pine and take off.
Compared with the prior art, the tool for measuring the static height of the vehicle has the advantages and beneficial effects as follows:
in the vehicle-mounted switch test device, the inventor creatively designs the spring loading device, and applies the loading force to the switch to be tested by adopting the characteristics of the spring in the spring loading device as a force loading mode so as to meet the test requirements.
In addition, in this on-board switch test device, the inventor also creatively designs an insulation box in the power output device, which can provide adaptive temperature for the motor, prevent the output power of the motor from being influenced by the external severe environment, and ensure the temperature environment within the rated working temperature of the motor.
In addition, in the vehicle-mounted switch test device, the inventor also designs a slide block bracket, a slide block adjusting bolt, a pin and a switch clamp module in the tested switch module aiming at the tested switch module. Through rotating slider adjusting bolt for slider adjusting bolt is for slider support linear movement in the vertical direction, and then drives slider for slider support linear movement in the vertical direction through the round pin, makes the process that calibration spring loading device and switch center correspond more convenient and accurate.
Therefore, the on-board switch test device is simple in structure, convenient to use, simple and convenient to maintain and small in environmental influence, can effectively carry out endurance tests on different types of switches, has very wide applicability, and effectively solves a plurality of problems commonly existing in the existing switch endurance test devices.
Drawings
Fig. 1 is a schematic structural diagram of an on-board switch testing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a power output device of an on-vehicle switch test device according to an embodiment of the invention.
Fig. 3 is an exploded view of a power output device according to an embodiment of the vehicle-mounted switch test device of the present invention.
Fig. 4 is a schematic structural diagram of an exhaust duct of the vehicle-mounted switch test device in one embodiment of the invention.
Fig. 5 is a side sectional view of the exhaust duct shown in fig. 4.
Fig. 6 is a schematic view of an assembly structure of a spring loading device of the vehicle-mounted switch test device in an embodiment of the invention.
Fig. 7 is an exploded view of the spring-loaded unit of the vehicle-mounted switch testing device according to an embodiment of the invention.
Fig. 8 is a side sectional view of a spring-loaded unit of an in-vehicle switch test apparatus according to an embodiment of the present invention.
Fig. 9 is a side sectional view of a spring-loaded unit of an on-board switch testing apparatus according to another embodiment of the present invention.
Fig. 10 schematically shows the relationship between the compressive displacement and the load force generated by pressing the spring by the thimble on the dynamometer before the test of the spring loading device.
Fig. 11 is a schematic structural diagram of a tested switch module of the vehicle-mounted switch testing apparatus according to an embodiment of the invention.
Fig. 12 is an exploded view of the tested switch module shown in fig. 11.
Fig. 13 is a partially enlarged view of a switching jig module according to an embodiment of the vehicle-mounted switch testing apparatus of the present invention.
Fig. 14 is a schematic partial exploded view of a tested switch module of the vehicle-mounted switch testing apparatus according to an embodiment of the invention.
Fig. 15 is a partial side sectional view of a tested switch module of the vehicle-mounted switch test device according to an embodiment of the invention.
Detailed Description
The vehicle-mounted switch test device of the present invention will be further explained and explained with reference to the drawings and the specific embodiments of the specification, however, the explanation and the explanation do not unduly limit the technical scheme of the present invention.
Fig. 1 is a schematic structural diagram of an on-board switch testing apparatus according to an embodiment of the present invention.
As shown in fig. 1, in the present embodiment, the vehicle-mounted switch test device according to the present invention may include a power output device 1, a spring-loaded device 2, and a switch module 3 to be tested. Wherein, the switch setting of being surveyed is on being surveyed the switch module, and spring loading device 2 is connected with being surveyed switch module 3, and power take off 1 is connected with spring loading device 2, drives spring loading device 2 through power take off 1 and moves towards or keep away from being surveyed the direction of switch module 3, and spring loading unit 2 can exert the loading force to being installed by being surveyed the switch on being surveyed switch module 3 to the realization is to the durable test of switch.
Fig. 2 shows a schematic structural diagram of a power output device of an on-board switch test device according to an embodiment of the invention.
Fig. 3 is an exploded view of a power output device according to an embodiment of the vehicle-mounted switch test device of the present invention.
As shown in fig. 2 and 3, in the present embodiment, the power output apparatus 1 in the on-vehicle switching test apparatus according to the present invention may include an incubator 11 and a motor 12. Wherein the motor 12 is arranged in the thermal container 11, and an output shaft (not shown in fig. 3) of the motor is connected with the spring loading device 2. The incubator 11 provides a suitable temperature for the motor 12, ensuring a temperature environment within the rated operating temperature of the motor. When the ambient temperature of insulation can 11 is high temperature, can cool off for motor 12, when ambient temperature is low temperature, can be isolated outside low temperature for motor 12, for motor 12 provides the temperature that is far above the rated temperature lower limit of motor to prevent that the inside grease of motor 12 from freezing, effectively prevent because of the influence of outside adverse circumstances is experimental to the switch.
In the present embodiment, the heat-insulating box 11 may have a double-layer structure, and may include an outer heat-insulating layer 111 and an inner heat-insulating layer 112. The inner layer and the outer layer can be made of different materials, and have different functions respectively, so that the requirements under different conditions are met, and a better heat preservation effect is realized. For example, the bakelite plate can be selected for use to outer material, and the bakelite plate has lower heat conductivity for the metal, can play certain thermal-insulated effect to have higher density, can play the structure supporting role to the box, the sponge layer can be selected for use to the inlayer, and the sponge layer can effectively completely cut off the temperature on the skin and to the conduction of box inner space, plays the thermal-insulated effect that keeps warm of second way.
In addition, the side panel of the thermal insulation box 11 may further be provided with an air inlet 113 connected to the air inlet duct 13 and an air outlet 114 connected to the air outlet duct 14, and the air inlet duct 13 is used to continuously inject the compressed air at normal temperature into the thermal insulation box 11, so that the air outlet 114 on the side panel is at a negative pressure relative to the air inlet 113, and further the redundant air in the thermal insulation box 11 is discharged to the outside of the thermal insulation box through the air outlet duct 14, thereby realizing effective control of the temperature in the thermal insulation box 11.
The intake hole 113 and the exhaust hole 114 may be disposed at both ends of a diagonal line of the side. The upper diagonal line and the lower diagonal line are arranged, so that air circulation in the heat insulation box 11 is more sufficient, when compressed air with certain pressure enters the box body, compressed air airflow passes through the periphery of the motor 12 and forms backflow with the heat insulation inner layer 112 on the panel, the backflow airflow passes through the motor 12 and the heat insulation inner layer 112 again and is discharged through the exhaust pipeline 14, and the cooling and heat insulation effects of the compressed air on the inner space of the heat insulation box are fully utilized. In order to prevent the exhaust pipe 14 connected to the exhaust hole 114 from being shaken and loosened during the exhaust process, the exhaust pipe fixing bracket 141 may be further used to effectively fix the exhaust pipe 14 in the present invention. In addition, a connector 131 can be arranged at the joint of the air inlet pipeline 13 and the air inlet 113, so that the connection is tighter, and compressed air in the air inlet pipeline 13 can effectively enter the heat preservation box 11.
It should be noted that, in this embodiment, the motor 12 may be effectively fixed on the bottom plate through a motor bracket (not shown in fig. 3), so as to effectively avoid vibration deviation that may occur during the working process, the front end of the output shaft of the motor may further be provided with a universal joint 122, and the universal joint 122 may be connected to a push rod (e.g., 25 in fig. 6) in a matching manner, so as to conveniently connect the spring loading device 2. The output end of the motor penetrates through the heat insulation box 11, and a sealing ring 121 can be further arranged to ensure the heat insulation function of the heat insulation box 11.
Fig. 4 is a schematic structural diagram of an exhaust duct of the vehicle-mounted switch test device in one embodiment of the invention.
Fig. 5 is a side sectional view of the exhaust duct shown in fig. 4.
As shown in fig. 4 and 5, in this embodiment, an insulating layer 141 may be further disposed on the periphery of the exhaust duct 14 in the vehicle-mounted switch test device according to the present invention, and the insulating layer 141 may perform a heat insulation function to maintain the temperature of the gas in the duct, so as to effectively avoid the interference of external environmental factors.
The periphery of the intake duct 13 may be provided with an insulating layer having the same function as the insulating layer 141.
Fig. 6 is a schematic view of an assembly structure of a spring loading device of the vehicle-mounted switch test device in an embodiment of the invention.
As shown in fig. 6, in the present embodiment, the spring loading device 2 in the vehicle-mounted switch test device according to the present invention may include a spring loading unit 21, a spring loading device bracket 22, a guide rail 24, a guide rail clamping support 26, a bearing 23, and a push rod 25. The spring loading unit 21 is disposed on the spring loading device bracket 22, one end of the push rod 25 is connected to the power output device 1, and the other end is connected to the spring loading device bracket 22, so that the spring loading device 2 is connected to the power output device 1. The guide rail 24 is provided on the guide rail holding bracket 26, and the bearing 23 is provided on the guide rail 24 and slidable along the guide rail 24.
In this embodiment, the spring loading device bracket 22 may be formed by matching a T-shaped bracket 221 and an L-shaped bracket 222, the spring loading device 1 is installed and fixed on the T-shaped bracket 221, and an O-shaped groove (not shown in fig. 6) moving left and right may be formed on the T-shaped bracket 221 so as to calibrate the center of the spring loading device 1 and the switch to be tested. The L-shaped bracket 222 of the spring-loaded device bracket 22 is mainly used for mounting the fixed bearing 23, and the L-shaped bracket 222 is fixedly connected with the push rod 25 connected with the output shaft of the motor.
It should be noted that a feeler 27 may be provided in the spring loading device 2, the feeler 27 may be used for further fine adjustment of a gap between the spring loading device 1 and the switch to be tested before the test, so as to reduce errors possibly existing in the test process and make the test result more accurate.
Fig. 7 is an exploded view of the spring-loaded unit of the vehicle-mounted switch testing device according to an embodiment of the invention.
As shown in fig. 7, in the present embodiment, the spring loading unit 21 includes a spring housing 211, a thimble 212, an adjustment nut 214, a spring adjustment bolt 215, and a spring 216. Wherein, can be used for placing spring 216 in spring pipe box 211 cover, the spring pipe box 211 outside can set up the screw thread to conveniently fix on spring loading device support 22, the afterbody of spring pipe box 211 can be bored there is the counter bore, the counter bore front portion sets up to smooth surface, be used for placing spring 216, its afterbody can be processed has the internal thread, convenient after having selected suitable spring 216, cooperation spring adjusting bolt 215 finely tunes the compression stroke of spring 216 in the sleeve, in order to satisfy the demand of being surveyed switch endurance test.
The front end of the spring adjusting bolt 215 can be processed into a smooth cylinder, the top of the cylinder contacts the spring 216, the tail of the spring adjusting bolt 215 is connected with the spring socket 211, and the adjusting nut 214 is connected with the spring adjusting bolt 215. The spring adjusting bolt 215 can adjust the compression stroke of the spring 216 by matching with the spring sleeve 211, and after the adjustment is completed, the spring adjusting bolt can be fixed by screwing the adjusting nut 214. The tail of thimble 212 may be disposed inside the head end of spring tube 211 through a boss 2121, the head of thimble 212 may be disposed outside spring tube 211, and the front of spring tube 211 may be formed with a small hole, so that thimble 212 may move freely in the small hole, so that thimble 212 may move relative to spring tube 211 along the axial direction of spring tube 211, and boss 2121 behind thimble 212 may play a role in limiting when spring 216 is reset.
It should be noted that there may also be a nylon cap 213 in the spring loading unit 21, and the nylon cap 213 is embedded in the head of the thimble and is used for contacting with the switch to be tested. The head of the nylon cap 213 may be a spherical surface portion, and the tail portion may have an opening for tightly connecting with the thimble 212. When the thimble 212 contacts the switch to be tested, the nylon cap 213 can protect the surface of the switch from being scratched by metal and can achieve the purpose of flexible contact. The nylon cap 213 with the spherical head part can make the spring loading device 2 and the surface of the switch to be tested in point contact, the point contact is more suitable for various irregular switch surfaces with inclined or arc surfaces, and the center point of the stress of the spring loading device 2 and the switch to be tested can be calibrated more accurately.
Therefore, the vehicle-mounted switch test device can select the spring according to the endurance test requirements of different switch operating forces, further assemble the spring loading device, and tighten the spring adjusting bolt of the spring loading device until the spring is pressed. Before the test, each spring loading device needs to be finely adjusted on a force measuring machine until the range of the loading force required by the test is adjusted, the force curves of each spring loading device are kept consistent, and the displacement value corresponding to the loading force required by the test is recorded as X mm. Installing a spring loading device on the switch module 3 to be tested, fixing the switch to be tested, starting a motor, pushing a nylon head at the front end of the spring loading device by the motor to contact with the surface of the switch, then finely adjusting the spring loading device, adjusting the nylon head to the central point of the switch to be tested, and adjusting the gap between the nylon head and the switch to 0.1mm by using a feeler gauge, so that the gaps between all the switches to be tested and the nylon heads of the corresponding spring loading devices are kept consistent. Recording the current position step number of the adjusted motor as 0 step, then driving the motor forward to push the switch to be tested until the stroke equals to the displacement value X mm recorded in the previous calibration on the dynamometer, recording the step number of the current terminal position of the stepping motor as a, then driving the motor backward until the nylon head leaves the surface gap position of the switch as 5mm, and recording the step number of the current initial position of the motor as-b, then the total stroke step number of the motor is: and c, the durability of the vehicle-mounted switch can be tested by editing the program of the stepping motor according to the data.
Fig. 8 is a side sectional view of a spring-loaded unit of an in-vehicle switch test apparatus according to an embodiment of the present invention.
As shown in fig. 8, with reference to fig. 6, in the present embodiment, the spring loading unit 21 is pushed by the motor 12 to move forward until the nylon cap 213 contacts the switch to be tested. At this time, the thimble 212 in the spring loading unit 21 is not displaced relative to the spring socket 211, and the spring 216 does not perform a compression stroke.
Fig. 9 is a side sectional view of a spring-loaded unit of an on-board switch testing apparatus according to another embodiment of the present invention.
As shown in fig. 9, with reference to fig. 6, 7 and 8, in the present embodiment, needle 212 is displaced relative to spring tube 211, and spring 216 is compressed. This is because, after the nylon cap 213 contacts the switch to be tested, the motor 12 pushes the spring loading unit 21 to move forward, the nylon cap 213 pushes the thimble 212 to move backward under the resistance of the switch to be tested, the bottom of the thimble 212 pushes the spring 216, the spring 216 starts to compress under the pressing force of the thimble 212, and the compression displacement occurs until the compression reaches the required stroke, at which time, the force applied to the switch to be tested reaches the maximum value. After the completion, the motor 12 is controlled to move backwards, the pressing force applied to the spring 216 starts to be slowly released, the thimble 212 is slowly pushed forwards under the action of the elastic force of the spring return until the tail boss plane 2121 of the thimble 212 contacts the inner wall of the spring tube sleeve 211, the motor 12 continues to drive the spring loading device to move backwards, and at this time, the force on the switch to be tested is completely released.
Fig. 10 schematically shows the relationship between the compressive displacement and the load force generated by pressing the spring by the thimble on the dynamometer before the test of the spring loading device.
As shown in fig. 10, with reference to fig. 6, 7, 8 and 9, it should be noted that the spring-loaded device 2 needs to be calibrated for the load force on the force measuring machine before the switch endurance test is performed. Before calibration, the spring 216 is inserted into the spring sleeve 211, the adjusting nut 214 is tightened, and the spring 216 is pressed by the thimble on the force measuring machine to generate a force curve. The force of the spring 216 is adjusted by adjusting the tension of the spring adjustment screw 215 a number of times until a suitable load force curve is found as shown in fig. 10.
Table 1 lists the measured data of a set of spring forces when the vehicle-mounted switch test device described in the present application is used for a loading test:
table 1.
Fig. 11 is a schematic structural diagram of a tested switch module of the vehicle-mounted switch testing apparatus according to an embodiment of the invention.
Fig. 12 is an exploded view of the tested switch module shown in fig. 11.
As shown in fig. 11 and 12, in the present embodiment, the switch module to be tested may include a switch clamping module 31, a slider 32, a pin 33, a slider adjusting bolt 34, and a slider bracket 35. Wherein, being surveyed switch 311 and locating on switch clamping module 31, switch anchor clamps module 31 sets up on slider 32, slider 32 sets up again on slider support 35, and slider 32 can realize sliding along slider support 35 on vertical direction, thereby make switch anchor clamps module 31 also can reciprocate along slider support 35 vertical direction, conveniently adjust switch anchor clamps module 31's height before experimental, make spring loading device 2 and being surveyed switch 311's alignment more accurate, convenient. The slider adjustment bolt 34 is threadably connected to the slider bracket 35, and the pin 33 may also be threadably connected to the slider 32.
In this embodiment, the switch clamp module 31 is assembled by digging a groove in the slider 32, and 4 bolts may be provided at the front and rear symmetrical positions of the left and right bosses 321 of the slider 32 to fix the switch clamp module 31.
It should be noted that the switch clamp module 31 may further include a switch clamp base 313 and a pressing plate 312, the switch 311 to be tested is disposed between the switch clamp base 313 and the pressing plate 312, both the switch clamp base 313 and the pressing plate 312 are used for clamping and fixing the switch 311 to be tested on the switch clamp module 31 in a matching manner, and the pressing plate 312 at the top of the switch clamp base 313 may be fixed by bolts at both ends, so as to prevent the switch 311 to be tested from loosening in the testing process, and ensure the performance of the endurance test of the switch to be tested.
Fig. 13 is a partially enlarged view of a switching jig module according to an embodiment of the vehicle-mounted switch testing apparatus of the present invention.
As shown in fig. 13, a flexible layer 3121, such as a silicone sheet, may also be disposed on a surface of the switch clamp module 31, where the pressure plate 312 is in contact with the switch 311 to be tested, and the flexible layer 3121 may protect the surface of the switch 311 to be tested from being scratched by the pressure plate 312, and achieve the purpose of flexible contact, further improve the clamping and fixing ability of the switch clamp module 31 to the switch 311 to be tested, and prevent the switch 311 to be tested from loosening in the test process.
Fig. 14 is a schematic partial exploded view of a tested switch module of the vehicle-mounted switch testing apparatus according to an embodiment of the invention.
As shown in fig. 14, in the tested switch module 3 of the vehicle-mounted switch testing apparatus according to the present invention, the head of the slider adjusting bolt 34 may further be provided with a connecting groove 341, and the slider adjusting bolt 34 may further be provided with a locking nut 342, so that when the slider 32 is adjusted by the slider adjusting bolt 34 to move to a proper position, the position of the slider adjusting bolt 34 may be fixed by tightening the locking nut 342. A through hole 323 provided corresponding to the connection groove 341 may be further provided in the slider 32. The planes on the left side and the right side of the sliding block 32 can be provided with 4 dovetail grooves 322, the sliding block bracket 35 can also be correspondingly provided with 4 guide rails 351, under the mutual matching of the guide rails 351 and the dovetail grooves 322, the sliding action of the sliding block 32 along the sliding block bracket 35 in the vertical direction is realized, and the sliding block 32 is prevented from swinging in the horizontal direction.
It should be noted that a vertically extending groove 352 may be further formed on the slider bracket 35, and a pair of locking bolts 353 is provided, one end of each locking bolt 353 penetrates through the groove 352 of the slider bracket 35, and the other end of each locking bolt 353 is connected with the slider 32, so as to facilitate locking and adjusting the height position of the slider relative to the slider bracket after the adjustment is completed.
Fig. 15 is a partial side sectional view of a tested switch module of the vehicle-mounted switch test device according to an embodiment of the invention.
In the tested switch module 3 in the vehicle-mounted switch test device, the head of the slider adjusting bolt 34 is further provided with a connecting groove 341, during assembly, the slider adjusting bolt 34 is in threaded connection with the slider bracket 35, the top of the slider adjusting bolt can be installed in the through hole 323 in the center of the slider 32, the top of the slider adjusting bolt 34 in contact with the slider through hole 323 can be a smooth-surfaced cylinder, 2 pins 33 which are tightly installed and screwed on two sides of the slider 32 can also be in threaded connection with the slider 32, the tail of each pin 33 is correspondingly embedded in the connecting groove 341 of the slider adjusting bolt 34, the diameter of the cylinder at the tail end of each pin 33 is slightly smaller than the width of the connecting groove 341 in the slider adjusting bolt 34, and a certain gap is reserved between the tail end of each pin 33 and the connecting groove 341 of the slider adjusting bolt 34, so that the slider.
It should be noted that, when the height of the slider 32 needs to be adjusted, the slider adjusting bolt 34 is rotated clockwise so that the slider adjusting bolt 34 moves linearly in the vertical direction relative to the slider bracket 35, the head connecting groove 341 of the slider adjusting bolt 34 interacts with the 2 pins 33, the lower end surface of the connecting groove 341 pushes the pin 33, and the pin 33 drives the slider 32 to move upward. When the slider adjusting bolt 34 is rotated counterclockwise, under the interaction between the slider adjusting bolt 34 and the pin 33, the slider adjusting bolt connecting groove 341 drives the pin 33, and the pin 33 drives the slider 32 to move downward together, thereby achieving the linear movement of the slider 32 relative to the slider bracket 35 in the vertical direction.
In conclusion, the vehicle-mounted switch test device disclosed by the invention is simple in structure, convenient to use, simple and convenient to maintain, small in environmental influence, capable of effectively performing durability tests on different types of switches and very wide in applicability. The problems of complex structure, low applicability, large environmental influence and difficult maintenance of the existing switch endurance test device are solved, and a new test mode is added to the field of vehicle-mounted switch tests.
It should be noted that the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradicted by each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is apparent that the present invention is not limited to the above embodiments and similar changes or modifications can be easily made by those skilled in the art from the disclosure of the present invention and shall fall within the scope of the present invention.
Claims (11)
1. The utility model provides an on-vehicle switch test device which characterized in that includes:
a power take-off;
a switch under test module comprising a switch under test;
a spring-loaded device connected with the power take-off, the spring-loaded device comprising: a spring-loaded device support connected with the power take-off; the spring loading unit is arranged on the spring loading device bracket; wherein the spring loading unit comprises: the spring pipe sleeve is arranged on the spring loading device bracket; the tail part of the ejector pin is arranged inside the head end of the spring pipe sleeve through a boss, the head part of the ejector pin is arranged outside the spring pipe sleeve, and the ejector pin can move relative to the spring pipe sleeve along the axial direction of the spring pipe sleeve; the spring is arranged in the spring pipe sleeve; the spring adjusting bolt is connected with the tail end of the spring pipe sleeve so as to adjust the compression stroke of the spring; an adjusting nut connected with the spring adjusting bolt;
the power output device drives the spring loading device to move towards or away from the direction of the switch module to be tested, and the spring loading unit applies loading force to the switch to be tested.
2. The vehicle-mounted switch testing device according to claim 1, wherein the spring loading unit further comprises a nylon cap, the nylon cap is sleeved on the head portion of the thimble, and the nylon cap is used for being in contact with a switch to be tested.
3. The vehicle switch test device of claim 2, wherein the head of the nylon cap has a spherical surface portion.
4. The on-board switch test device of claim 1, wherein the spring-loaded device further comprises:
the guide rail clamping support is provided with a guide rail;
the bearing can slide along the guide rail and is arranged on the guide rail, and the bearing is connected with the spring loading device bracket;
and one end of the push rod is connected with the power output device, and the other end of the push rod is connected with the spring loading device bracket.
5. The vehicle-mounted switch test device according to any one of claims 1 to 4, wherein the power output device comprises an insulation can and a motor arranged in the insulation can, and an output shaft of the motor is connected with the spring loading device.
6. The vehicle switch test apparatus of claim 5, wherein the heat-insulating box comprises an outer heat-insulating layer and an inner heat-insulating layer.
7. The vehicle-mounted switch test device according to claim 6, wherein an air inlet connected to the air inlet pipe and an air outlet connected to the air outlet pipe are provided on one side surface of the heat-insulating box.
8. The vehicle-mounted switch test device according to claim 7, wherein the intake hole and the exhaust hole are arranged at both ends of a diagonal line of the side surface; and/or the periphery of the air inlet pipeline and/or the exhaust pipeline is provided with an insulating layer.
9. The vehicle-mounted switch test device according to any one of claims 1 to 4 and 6 to 8, wherein the tested switch module further comprises:
a slider bracket;
the sliding block is arranged on the sliding block bracket and can slide in the vertical direction along the sliding block bracket;
the head of the sliding block adjusting bolt is provided with a connecting groove, and the sliding block adjusting bolt is in threaded connection with the sliding block bracket;
the pin is in threaded connection with the sliding block, and the tail part of the pin is correspondingly arranged in the connecting groove of the sliding block adjusting bolt;
the switch clamp module is provided with the switch to be tested and arranged on the sliding block;
the slider adjusting bolt linearly moves in the vertical direction relative to the slider support through rotation of the slider adjusting bolt, and then the slider is driven to linearly move in the vertical direction relative to the slider support through the pin.
10. The vehicle-mounted switch test device according to claim 9, wherein the slider bracket is provided with a vertically extending groove; and one end of the locking bolt penetrates through the groove, and the other end of the locking bolt is connected with the sliding block so as to lock the height position of the sliding block relative to the sliding block bracket.
11. The on-board switch test device according to claim 9, wherein the switch clamp module includes: the switch to be tested is arranged between the switch clamp base and the pressing plate; and a flexible layer is arranged on the surface of the pressing plate, which is in contact with the switch to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106411.4A CN111272400A (en) | 2020-02-21 | 2020-02-21 | Vehicle-mounted switch test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106411.4A CN111272400A (en) | 2020-02-21 | 2020-02-21 | Vehicle-mounted switch test device |
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| Publication Number | Publication Date |
|---|---|
| CN111272400A true CN111272400A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010106411.4A Pending CN111272400A (en) | 2020-02-21 | 2020-02-21 | Vehicle-mounted switch test device |
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| CN (1) | CN111272400A (en) |
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Application publication date: 20200612 |
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