A micro switch pressing life detection device

Abstract

The present invention provides a micro switch pressing life detection device, which relates to the field of switch detection technology, including a base, a rotating support frame rotatably connected to the surface of the base through a first bearing, and a detection platform fixedly connected to the upper surface of the rotating support frame, the surface of the base is installed with a driving motor, and the end of the output shaft of the driving motor is fixedly connected to the rotating support frame, including: the surface of the base is provided with a plurality of groups of arc tracks in an annular array, a bearing slider and a liquid capsule are provided, and the surface of the liquid capsule is provided with a liquid regulating block; the surface of the detection platform is provided with a plurality of first sliding sleeves, a second sliding sleeve and a third sleeve in an annular array, the second sliding sleeve is internally slidably connected to a second sliding rod, and the first sliding sleeve is internally slidably connected to a detection pressure rod. The present invention simulates the use environment of the micro switch by adjusting the installation angle of the micro switch and the contact angle of the micro switch, so that the life detected by the micro switch is closer to the use situation.

Description

Technical Field

[0001] The present invention relates to the technical field of switch detection, and in particular to a micro switch pressing life detection device. Background Art

[0002] Micro switches are commonly used electrical components used to control the switching action of circuits. In industrial production, small and medium-sized micro switches are widely used in various equipment and machinery, playing an important role. However, due to the high frequency of use of micro switches, their lifespan will be affected and they are prone to failure. Therefore, it is necessary to detect the pressing life of micro switches.

[0003] Existing micro switch testing equipment usually fixes the micro switch on a testing table and uses a pressing rod to periodically press the contacts of the micro switch, while recording the power-on status of the micro switch to perform a pressing life test on the micro switch. This method usually cannot adjust the setting angle of the micro switch and the pressing angle of the pressing rod. For the use of some micro switches, their installation angle needs to be adjusted according to the design of related equipment, and the temperature, air pressure, vibration and other factors of the use environment are quite different from those of the normal environment. For example, the micro switches used in the engine compartment of a car and the micro switches used in the flight control system of an aircraft will have a certain impact on the pressing life test of the micro switch. There will be some difference between the pressing life of the micro switch detected by the existing testing equipment and the actual service life of the micro switch, which will easily affect the normal use of the equipment installed with such micro switches. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a micro switch pressing life detection device. By adjusting the installation angle of the micro switch and the contact angle of pressing the micro switch, the use environment of the micro switch can be simulated, so that the life detected by the micro switch is closer to the use situation.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A micro switch pressing life detection device comprises a base, a rotating support frame rotatably connected to the surface of the base through a first bearing, and a detection table fixedly connected to the upper surface of the rotating support frame, a driving motor is installed on the surface of the base, and the end of the output shaft of the driving motor is fixedly connected to the rotating support frame, comprising:

[0007] The surface of the base is provided with a plurality of groups of arc tracks in a circular array, a bearing slider is provided between each group of the arc tracks, a micro switch to be detected is provided on the surface of the bearing slider, and the installation angle of the micro switch to be detected is simulated by adjusting the position of the bearing slider on the arc track, a liquid capsule is provided on one side of each group of the arc tracks, and a liquid regulating block is provided on the surface of the liquid capsule, and the position of the bearing slider is changed by adjusting the position change of the liquid inside the liquid capsule through the liquid regulating block;

[0008] The surface of the detection platform is provided with a plurality of first sliding sleeves, second sliding sleeves and third sleeves in a circular array, the interior of the second sliding sleeve is slidably connected to the second sliding rod, and the interior of the first sliding sleeve is slidably connected to the detection pressure rod, and the angle of the first sliding sleeve is adjusted by sliding the second sliding rod inside the second sliding sleeve, so that the first sliding sleeve can make corresponding angle adjustments in coordination with the change in the position of the bearing slider, and the interior of the third sleeve is connected to the interior of the second sliding sleeve and the interior of the first sliding sleeve respectively through a pipeline, and the telescopic action of the detection pressure rod and the second sliding rod is regulated by changing the change in the liquid volume inside the third sleeve.

[0009] Furthermore, the surface of the detection platform is provided with a plurality of mounting grooves in a circular array, the surface of the first sliding sleeve is symmetrically fixedly connected with gears, the gears are rotatably connected to the inside of the mounting grooves through a second bearing, the second sliding sleeve is fixedly connected to the surface of the detection platform, the end of the second sliding rod is fixedly connected with a U-shaped tooth plate, the gears are meshed with the U-shaped tooth plate through teeth on the bottom surface of the U-shaped tooth plate, a first constraint block is slidably connected in a constraint groove provided on the surface of the U-shaped tooth plate, and the first constraint block is fixedly connected to the detection platform.

[0010] Furthermore, the third sleeve is fixedly connected to the detection platform, the interior of the third sleeve is slidably connected to a piston rod, the interior of the third sleeve is fixedly connected to a second constraint block, the second constraint block is slidably connected to a rectangular groove opened on the surface of the piston rod, the surface of the piston rod is hinged with a connecting rod, the surface of the detection platform is equipped with a first electric push rod through a U-shaped frame, the end of the output shaft of the first electric push rod is fixedly connected to a connecting ring, and the connecting rods are all hinged to the connecting ring.

[0011] Furthermore, a liquid separating box is provided on the side of the third sleeve away from the connecting rod, and the liquid separating box is fixedly connected to the third sleeve. An adjusting motor is installed on the surface of the liquid separating box, and liquid passing tubes are fixedly connected in the first circular holes symmetrically opened on the surface of the liquid separating box, one of the liquid passing tubes is connected with the interior of the second sliding sleeve through a pipeline, and the other liquid passing tube is connected with the interior of the first sliding sleeve through a pipeline. An adjusting rotating block is rotatably connected inside the liquid separating box, and an L-shaped through groove is opened on the surface of the adjusting rotating block. The liquid separating box is connected with the interior of the third sleeve through the L-shaped through groove and the second circular hole opened on the surface of the third sleeve, and the output shaft of the adjusting motor is rotatably connected to the liquid separating box through a third bearing and a first dynamic seal, and the output shaft of the adjusting motor is fixedly connected to the adjusting rotating block.

[0012] Furthermore, the surface of the base is fixedly connected with several groups of fixed blocks in a circular array, each group of the fixed blocks is fixedly connected with a protective shell, and each group of the arc tracks is fixedly connected to the inner wall of the corresponding protective shell, and the bearing slider is slidably connected with the arc track through an arc groove opened on the surface of the arc track, and an arc support block is arranged inside the protective shell, and the arc support block is fixedly connected with the corresponding two arc tracks, and the surface of the arc support block is fixedly connected with a liquid sac, and an adjusting roller is arranged between the arc support block and the protective shell, and the adjusting roller conflicts with the liquid sac, and the liquid on both sides of the adjusting roller inside the liquid sac cannot flow through the squeezing of the adjusting roller, and the surface of the bearing slider is fixedly connected with a first connecting rod, and the surface of the first connecting rod is fixedly connected with a first connecting plate, and the surface of the first connecting plate is rotatably connected with a second connecting rod through a fourth bearing, and the second connecting rod is fixedly connected to the adjusting roller.

[0013] Furthermore, a first cavity is symmetrically provided inside the liquid regulating block, and pipe connecting ports are symmetrically provided on the surface of the liquid regulating block, the pipe connecting ports are respectively connected to the corresponding interiors of the first cavity, and the two pipe connecting ports are respectively connected to the liquid bag through pipes, and a J-shaped liquid groove and a second liquid groove are respectively provided inside the first cavity, and an adjusting slider is slidably connected in the second slide groove provided on the surface of the liquid regulating block, and a third liquid groove is symmetrically provided inside the adjusting slider, and a water pump is installed on the surface of the adjusting slider, and the water inlet and water outlet of the water pump are respectively connected to the interiors of the two third liquid grooves, and a second electric push rod is installed on the surface of the adjusting slider, and the end of the output shaft of the second electric push rod is fixedly connected to the surface of the liquid regulating block, and the second slide groove provided on the surface of the liquid regulating block is connected to the interiors of the J-shaped liquid groove and the second liquid groove.

[0014] Furthermore, an L-shaped block is symmetrically fixedly connected to the surface of the carrying slider, a locking block is symmetrically arranged between the two L-shaped blocks, the locking block is slidably connected to the L-shaped block and the carrying slider, a plurality of locking springs are symmetrically arranged on the surface of the locking block, both ends of the locking spring are respectively fixedly connected to the corresponding L-shaped block and the locking block, a mounting block is arranged between the two locking blocks, the mounting block is engaged with the inside of the two locking blocks through a locking groove opened on the surface of the locking block, an elastic pole piece is arranged at the bottom of the mounting block, the surface of the carrying slider is provided with a pin corresponding to the elastic pole piece on the surface of the mounting block, and the surface of the locking block conflicts with the surface of the arc track.

[0015] Furthermore, the surface of the detection platform is fixedly connected to a support mounting frame in a circular array, a distance sensor is installed on the surface of the support mounting frame, a sensing plate is provided directly below the distance sensor, the sensing plate is fixedly connected to the corresponding second sliding rod, and a control panel is installed on the surface of the base, and the control panel is electrically connected to the first electric push rod, the drive motor, the second electric push rod and the water pump through wires.

[0016] The above solution of the present invention includes at least the following beneficial effects:

[0017] The above scheme of the present invention can adjust the pressing stroke, pressing strength and pressing time of the detection rod during the detection process by regulating the liquid pressure and liquid amount inside the third sleeve. By driving the detection platform to rotate with the driving motor, the manner in which the pressure rod presses the microswitch contact can be further detected. By adjusting the distribution of the liquid amount inside the liquid bag, the installation position of the microswitch can be determined, and the installation angle of the microswitch can be simulated, so that the detection is closer to the use environment of the microswitch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure provided by the present invention.

[0019] Figure 2 Schematic diagram of the protective shell of the present invention.

[0020] Figure 3 It is a schematic diagram of the third sleeve in the present invention.

[0021] Figure 4 It is a schematic diagram of the gear in the present invention.

[0022] Figure 5 The present invention Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 It is a schematic diagram of the piston rod in the present invention.

[0024] Figure 7 It is a schematic diagram of the liquid separation box in the present invention.

[0025] Figure 8 It is a schematic diagram of the detection pressure rod in the present invention.

[0026] Fig. 9 Schematic diagram of the liquid capsule in the present invention.

[0027] Fig.10 It is a schematic diagram of the adjustment slider in the present invention.

[0028] Fig.11 Schematic diagram of the adjusting roller in the present invention.

[0029] In the figure: 101, base; 102, drive motor; 103, test bench; 104, rotating support frame;

[0030] 201, placement groove; 203, gear; 204, first sliding sleeve; 205, detection pressure rod; 206, second sliding sleeve; 207, second sliding rod; 208, U-shaped tooth plate; 209, first constraint block; 210, first electric push rod; 211, connecting ring; 212, connecting rod; 213, piston rod; 214, third sleeve; 215, second constraint block; 216, liquid separation box; 217, regulating motor; 218, regulating rotating block; 219, L-shaped through groove; 220, liquid through pipe; 228, fixed block; 229, protective shell; 230, arc shaped track; 231, arc-shaped support block; 232, bearing slider; 233, first connecting rod; 234, first connecting piece; 235, second connecting rod; 236, adjusting roller; 237, liquid capsule; 238, liquid adjusting block; 239, adjusting slider; 240, first cavity; 241, J-shaped liquid channel; 242, second liquid channel; 243, pipeline connection port; 244, third liquid channel; 245, second electric push rod; 246, water pump; 247, recessed portion; 248, support mounting frame; 249, distance sensor; 251, sensor plate;

[0031] 301, L-shaped block; 302, locking block; 303, locking spring; 304, mounting block. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] like Figures 1 to 11As shown, an embodiment of the present invention provides a micro switch pressing life detection device, comprising a base 101, a rotating support frame 104 rotatably connected to the surface of the base 101 through a first bearing, and a detection table 103 fixedly connected to the upper surface of the rotating support frame 104, a driving motor 102 is installed on the surface of the base 101, and the end of the output shaft of the driving motor 102 is fixedly connected to the rotating support frame 104, including:

[0034] The surface of the base 101 is provided with a plurality of groups of arc tracks 230 in a circular array, a bearing slider 232 is provided between each group of arc tracks 230, the micro switch to be detected is provided on the surface of the bearing slider 232, and the installation angle of the micro switch to be detected is simulated by adjusting the position of the bearing slider 232 on the arc track 230, and a liquid capsule 237 is provided on one side of each group of arc tracks 230, and a liquid regulating block 238 is provided on the surface of the liquid capsule 237, and the position of the liquid in the liquid capsule 237 is adjusted by the liquid regulating block 238 to change the position of the bearing slider 232;

[0035] The surface of the detection platform 103 is provided with a plurality of first sliding sleeves 204, second sliding sleeves 206 and third sleeves 214 in a circular array. The second sliding sleeve 206 is slidably connected to the inside of the second sliding sleeve 206, and the first sliding sleeve 204 is slidably connected to the inside of the detection pressure rod 205. The angle of the first sliding sleeve 204 is adjusted by sliding the second sliding rod 207 inside the second sliding sleeve 206, so that the first sliding sleeve 204 can adjust the angle accordingly in accordance with the change in the position of the bearing slider 232. The interior of the third sleeve 214 is connected to the interior of the second sliding sleeve 206 and the interior of the first sliding sleeve 204 respectively through a pipeline, and the telescopic action of the detection pressure rod 205 and the second sliding rod 207 is regulated by changing the change in the liquid volume inside the third sleeve 214.

[0036] In an embodiment of the present invention, in the detection of a micro switch of a certain production batch, by placing the device in a detection room, using a temperature control device to change the temperature in the detection room to simulate the temperature environment in which the micro switch is used in the corresponding device, using a ventilation pump to change the air pressure environment in the detection room to simulate the air pressure environment of the micro switch in the corresponding device, using a vibration generator to simulate the vibration environment of the micro switch in the corresponding device, accessing the micro switch to be detected through an external circuit to control the switching operation of the load, a power supply is provided in the external circuit to provide a constant voltage or current source to drive the load, and resistors, inductors or capacitors are selected in parallel or in series as needed to simulate different types of loads. Specifically, for resistive loads, resistors can be directly connected in series, for inductive loads, inductors and power supplies are connected in series, and for capacitive loads, capacitors and power supplies are connected in series or in parallel. A sudden load is introduced into the circuit to simulate the sharp fluctuation of current when the switch is turned on or off, and variable resistors, inductive or capacitive loads are set. By controlling the switching frequency and amplitude of the load, the high-frequency load impact of the micro switch in actual application is simulated.

[0037] By changing the liquid flow direction in the third sleeve 214, the second sliding rod 207 is extended and retracted inside the second sliding sleeve 206, so as to change the angle of the detection pressure rod 205 inside the first sliding sleeve 204, thereby adjusting the angle at which the detection pressure rod 205 touches the micro switch contact. When the liquid flow direction in the third sleeve 214 causes the detection pressure rod 205 to extend and retract inside the first sliding sleeve 204, the pressure of the detection pressure rod 205 touching the contact and the duration of the contact can be adjusted. By changing the direction of the hydraulic pressure inside the liquid regulating block 238, the direction of the liquid pressure inside the liquid capsule 237 is changed, so that the liquid capsule 237 pushes the supporting slider 232 to move by deformation, thereby causing the supporting slider 232 to move along the surface of the arc track 230 to simulate the installation angle of the micro switch to be detected.

[0038] At the same time, the detection method can be electrically operated along the radial direction of the micro switch touch button, or the contact of the micro switch can be pressed at a certain angle, or the length of the detection pressure rod 205 can be kept unchanged, and the detection platform 103 can drive the detection pressure rod 205 to rotate by controlling the operation of the rotating support frame 104, so that the detection pressure rod 205 rolls the contact in a direction perpendicular to the radial direction of the micro switch touch button.

[0039] It should be noted that the temperature control device can be an infrared heater, a hot air blower, etc. The vibration generator is arranged on the surface or inside of the base 101. The installation and use of the temperature control device, the vibration generator and the ventilation pump are well known in the prior art and will not be elaborated here. The selection and connection of the power supply, resistor and capacitor in the peripheral circuit are well known in the prior art and will not be elaborated here.

[0040] like Figure 4 and Figure 5 As shown, the surface of the testing platform 103 is provided with a plurality of receiving grooves 201 in a circular array, the surface of the first sliding sleeve 204 is symmetrically fixedly connected with a gear 203, the gear 203 is rotatably connected to the inside of the receiving groove 201 through a second bearing, the second sliding sleeve 206 is fixedly connected to the surface of the testing platform 103, the end of the second sliding rod 207 is fixedly connected with a U-shaped tooth plate 208, the gear 203 is meshed with the U-shaped tooth plate 208 through the teeth on the bottom surface of the U-shaped tooth plate 208, the first constraint block 209 is slidably connected in the constraint groove provided on the surface of the U-shaped tooth plate 208, and the first constraint block 209 is fixedly connected to the testing platform 103.

[0041] In the embodiment of the present invention, the second sliding rod 207 is extended and retracted by adjusting the hydraulic pressure inside the second sliding sleeve 206. The extension and retraction of the second sliding rod 207 drives the U-shaped tooth plate 208 to move, so that the gear 203 drives the first sliding sleeve 204 to rotate. The first sliding sleeve 204 fixed on the bottom surface of the first sliding sleeve 204 drives the detection pressure rod 205 to rotate until it rotates to the required position. The first constraint block 209 supports the U-shaped tooth plate 208.

[0042] like Figure 6 , Figure 7 As shown, the third sleeve 214 is fixedly connected to the testing platform 103, the interior of the third sleeve 214 is slidably connected to the piston rod 213, the interior of the third sleeve 214 is fixedly connected to the second constraint block 215, the second constraint block 215 is slidably connected in a rectangular groove opened on the surface of the piston rod 213, the surface of the piston rod 213 is hinged with a connecting rod 212, the surface of the testing platform 103 is installed with a first electric push rod 210 through a U-shaped frame, the end of the output shaft of the first electric push rod 210 is fixedly connected to a connecting ring 211, and the connecting rods 212 are hinged to the connecting ring 211.

[0043] A liquid separator box 216 is provided on the side of the third sleeve 214 away from the connecting rod 212. The liquid separator box 216 is fixedly connected to the third sleeve 214. An adjusting motor 217 is installed on the surface of the liquid separator box 216. Liquid passing tubes 220 are fixedly connected in the first circular holes symmetrically opened on the surface of the liquid separator box 216, respectively. One of the liquid passing tubes 220 is connected with the interior of the second sliding sleeve 206 through a pipeline, and the other liquid passing tube 220 is connected with the interior of the first sliding sleeve 204 through a pipeline. An adjusting rotating block 218 is rotatably connected to the interior of the liquid separator box 216. An L-shaped through groove 219 is opened on the surface of the adjusting rotating block 218. The liquid separator box 216 is connected to the interior of the third sleeve 214 through the L-shaped through groove 219 and the second circular hole opened on the surface of the third sleeve 214. The output shaft of the adjusting motor 217 is rotatably connected to the liquid separator box 216 through the third bearing and the first dynamic seal, and the output shaft of the adjusting motor 217 is fixedly connected to the adjusting rotating block 218.

[0044] In the embodiment of the present invention, in the process of regulating the internal hydraulic pressure of the third sleeve 214, the first electric push rod 210 is controlled to be extended and retracted, and the extension and retraction of the first electric push rod 210 drives the connecting rod 212 to rotate through the connecting ring 211. The rotation of the connecting rod 212 drives the piston rod 213 to perform an extension and retraction movement inside the third sleeve 214 under the constraint of the second constraint block 215. The extension and retraction movement of the piston rod 213 causes the liquid inside the third sleeve 214 to enter the inside of the liquid separation box 216 through the second circular hole, and enter the inside of the L-shaped through groove 219. By controlling the movement of the regulating motor 217, the output shaft of the regulating motor 217 drives the regulating rotating block 218 inside the liquid separation box 216 to rotate, thereby By changing the orientation of the L-shaped through groove 219 inside the liquid separating box 216, the change in the internal pressure of the third sleeve 214 causes the liquid to be discharged from or enter the liquid separating box 216 from the liquid through tube 220 to which the L-shaped through groove 219 is directed. When the liquid enters or leaves the interior of the second sliding sleeve 206 through the pipeline from one of the liquid through tubes 220, the second sliding rod 207 in the second sliding sleeve 206 moves closer to or away from the second sliding sleeve 206. When the liquid enters or leaves the interior of the first sliding sleeve 204 through the pipeline from the other liquid through tube 220, the detection pressure rod 205 in the first sliding sleeve 204 connected to the first sliding sleeve 204 telescopes, so as to complete the pressing action of the micro switch to be detected.

[0045] It should be noted that the second circular hole opened on the surface of the liquid separating box 216 passes through the front and rear surfaces of the liquid separating box 216, so that the end located on the front surface is convenient for adjusting the rotation connection of the output shaft of the motor 217, and the end located on the rear surface is convenient for connecting the L-shaped through groove 219, the third sleeve 214 and the interior of the liquid separating box 216.

[0046] like Fig. 9 and Fig.10As shown, the surface of the base 101 is fixedly connected with a plurality of groups of fixed blocks 228 in a circular array, each group of fixed blocks 228 is fixedly connected with a protective shell 229, each group of arc tracks 230 is respectively fixedly connected to the inner wall of the corresponding protective shell 229, and the bearing slider 232 is slidably connected with the arc track 230 through an arc groove provided on the surface of the arc track 230, and an arc support block 231 is arranged inside the protective shell 229, and the arc support block 231 is fixedly connected with the corresponding two arc tracks 230, and the surface of the arc support block 231 is fixedly connected with a liquid capsule 237, an adjusting roller 236 is arranged between the arc-shaped support block 231 and the protective shell 229, the adjusting roller 236 is in conflict with the liquid sac 237, and the liquid inside the liquid sac 237 and located on both sides of the adjusting roller 236 cannot flow through the squeezing of the adjusting roller 236, the surface of the supporting slider 232 is fixedly connected with the first connecting rod 233, the surface of the first connecting rod 233 is fixedly connected with the first connecting plate 234, the surface of the first connecting plate 234 is rotatably connected with the second connecting rod 235 through the fourth bearing, and the second connecting rod 235 is fixedly connected to the adjusting roller 236.

[0047] The liquid regulating block 238 is symmetrically provided with a first cavity 240, and the surface of the liquid regulating block 238 is symmetrically provided with pipe connection ports 243, which are respectively connected to the corresponding first cavities 240, and the two pipe connection ports 243 are respectively connected to the liquid capsule 237 through pipes, and the first cavity 240 is respectively provided with a J-shaped liquid groove 241 and a second liquid groove 242, and an adjusting slider 239 is slidably connected in the second slide groove provided on the surface of the liquid regulating block 238, and the adjusting slider 239 is slidably connected in the second slide groove provided on the surface of the liquid regulating block 238. A third liquid passage trough 244 is symmetrically provided inside the block 239, a water pump 246 is installed on the surface of the adjusting slider 239, the water inlet and the water outlet of the water pump 246 are respectively connected to the inside of the two third liquid passage troughs 244, a second electric push rod 245 is installed on the surface of the adjusting slider 239, the end of the output shaft of the second electric push rod 245 is fixedly connected to the surface of the liquid adjusting block 238, and the second slide groove provided on the surface of the liquid adjusting block 238 is connected to the inside of the J-shaped liquid passage trough 241 and the second liquid passage trough 242.

[0048] In the embodiment of the present invention, the adjusting roller 236 squeezes the surface of the liquid capsule 237 to form a recessed portion 247, and the recessed portion 247 prevents the liquid inside the liquid capsule 237 from passing through the recessed portion 247. By starting the water pump 246, a negative pressure is generated inside the third liquid groove 244 connected to the water inlet of the water pump 246, and a positive pressure is generated inside the third liquid groove 244 connected to the water outlet of the water pump 246. By driving the second electric push rod 245 to telescopically move, the adjusting slider 239 is telescopically moved in the second slide groove provided on the surface of the liquid adjusting block 238, thereby controlling the two third liquid grooves 244 to be respectively connected to the inside of the two J-shaped liquid grooves 241, or making the two third liquid grooves 244 connected to the inside of the two second liquid grooves 242 respectively. When the third liquid groove 244 is connected to the inside of the J-shaped liquid groove 241, The surface of the adjusting slider 239 blocks the two second liquid grooves 242, and allows the liquid inside the liquid capsule 237 on one side of the recessed portion 247 to enter the upper pipe connecting port 243 and the first cavity 240 through the pipe, and then enter the liquid capsule 237 on the other side of the recessed portion 247 from the lower pipe connecting port 243 through the pipe. During this process, the liquid on one side of the recessed portion 247 continues to increase, so that the liquid capsule 237 drives the adjusting roller 236 to move between the arc-shaped support block 231 and the protective shell 229 through deformation. The movement of the liquid capsule 237 drives the supporting slider 232 to move between the arc-shaped track 230 through the second connecting rod 235, the first connecting piece 234 and the first connecting rod 233, so as to change the installation angle of the micro switch to be detected carried by the supporting slider 232.

[0049] like Fig.11 As shown, the surface of the carrying slider 232 is symmetrically fixedly connected with an L-shaped block 301, and a locking block 302 is symmetrically arranged between the two L-shaped blocks 301. The locking block 302 is slidably connected to the L-shaped block 301 and the carrying slider 232. A plurality of locking springs 303 are symmetrically arranged on the surface of the locking block 302, and the two ends of the locking spring 303 are respectively fixedly connected to the corresponding L-shaped block 301 and the locking block 302. A mounting block 304 is arranged between the two locking blocks 302, and the mounting block 304 is engaged with the inside of the two locking blocks 302 through a locking groove opened on the surface of the locking block 302. An elastic pole piece is arranged at the bottom of the mounting block 304, and the surface of the carrying slider 232 is provided with a pin corresponding to the elastic pole piece on the surface of the mounting block 304. The surface of the locking block 302 conflicts with the surface of the arc track 230.

[0050] In the embodiment of the present invention, a micro switch slot of corresponding specifications and a mounting hole are provided on the surface of the mounting block 304, so that the micro switch can be installed on the surface of the mounting block 304. An elastic pole piece matching the pin on the surface of the supporting slider 232 is provided below the mounting block 304, so that the device can connect micro switches of different specifications to the external circuit. Through the cooperation of the snap block 302, the snap spring 303 and the L-shaped block 301, the mounting block 304 can be easily fixed and disassembled on the surface of the supporting slider 232. The snap block 302 is in conflict with the arc track 230, so that the micro switch on the surface of the mounting block 304 is not easy to shake during detection.

[0051] like Figure 4 As shown, the surface of the testing platform 103 is fixedly connected to a supporting mounting frame 248 in a circular array, a distance sensor 249 is installed on the surface of the supporting mounting frame 248, a sensing plate 251 is arranged directly below the distance sensor 249, the sensing plate 251 is fixedly connected to the corresponding second sliding rod 207, and a control panel is installed on the surface of the base 101, and the control panel is electrically connected to the first electric push rod 210, the driving motor 102, the second electric push rod 245 and the water pump 246 through wires.

[0052] In the embodiment of the present invention, during the process of testing the life of the micro switch, the control tablet can be used to obtain the pressure change data and the flow data of the liquid inside the second sliding sleeve 206 by setting a sensor;

[0053] When the second sliding rod 207 moves, the distance change of the sensing plate 251 is sensed by the distance sensor 249 on the support mounting frame 248 to determine the displacement change of the second sliding rod 207, and then determine the angle at which the U-shaped toothed plate 208 causes the gear 203 to rotate, that is, the angle at which the detection pressure rod 205 rotates. The angle of the detection pressure rod 205 is the pressing angle of the detection device. At the same time, the expansion and contraction of the second sliding rod 207 and the first sliding sleeve 204 can be reflected through the liquid flow tube 220 and the change in the liquid volume and the hydraulic pressure inside the second sliding sleeve 206. The pressure change and flow change inside the second sliding sleeve 206 are verified by the induction cooperation of the distance sensor 249 and the sensing plate 251 to determine the accuracy of the detection.

[0054] The number of times the pressure rod 205 is extended and retracted is the number of times the pressure rod 205 is pressed. As the time axis, the liquid pressure change data and the liquid flow data in the first sliding sleeve 204 during each pressing process are recorded. The liquid pressure change data and the liquid flow data in the first sliding sleeve 204 reflect the mechanical property changes of the micro switch during the pressing detection process. Specifically, the following may be included:

[0055] Pressure-Flow Response Coefficient :definition for and The ratio of the rate of change of is used to express the rigidity and response sensitivity of the mechanical structure, that is, ,in, Liquid pressure change data, The rate of change of liquid pressure change data, Liquid pressure change data, The rate of change of liquid pressure change data, if during multiple presses The value gradually decreases, indicating that the rigidity or resilience of the mechanical structure is weakened, and there may be wear or elastic fatigue;

[0056] During the detection process, the actual extension of the second sliding rod 207 is reflected by the different distances between the second sliding rod 207 and the sensing plate 251 sensed by the sensor 249 at different extensions. Compare the liquid pressure change data. When the two data are inconsistent, the operation of the detection equipment can be suspended to allow manual intervention for maintenance to ensure the accuracy of the device detection.

[0057] When all the micro switches in the batch tested are tested, the test report can include the following contents:

[0058] With the number of clicks as the X-axis and the number of micro switch damages as the Y-axis, the micro switch life curve is drawn, and the mechanical performance failure probability and electrical performance failure probability in different click number intervals are output, and the mechanical performance failure probability and electrical performance failure probability under different response sensitivities are output at the same time, which can provide a reference for the subsequent improvement of micro switches.

[0059] It should be noted that the use of the control tablet in this embodiment is convenient for controlling the first electric push rod 210, the second electric push rod 245 and the water pump 246, for receiving and processing the data collected by the sensor, and for displaying the detection results of the micro switch. The working principle and use process of the sensor and the distance sensor 249 are well known in the prior art and will not be described in detail here. The influence of the deformation amount of the liquid under pressure on the detection result can be ignored. In this embodiment, the liquid can be regarded as incompressible.

[0060] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A micro switch pressing life detection device, comprising a base (101), a rotating support frame (104) rotatably connected to the surface of the base (101) via a first bearing, and a detection table (103) fixedly connected to the upper surface of the rotating support frame (104), a driving motor (102) being mounted on the surface of the base (101), an end of an output shaft of the driving motor (102) being fixedly connected to the rotating support frame (104), and characterized in that: include: The surface of the base (101) is provided with a plurality of groups of arc tracks (230) in a ring array, a bearing slider (232) is provided between each group of the arc tracks (230), a micro switch to be detected is provided on the surface of the bearing slider (232), and the installation angle of the micro switch to be detected is simulated by adjusting the position of the bearing slider (232) on the arc track (230), a liquid capsule (237) is provided on one side of each group of the arc tracks (230), a liquid adjustment block (238) is provided on the surface of the liquid capsule (237), and the position of the liquid in the liquid capsule (237) is adjusted by the liquid adjustment block (238), so that the position of the bearing slider (232) is changed; The surface of the detection platform (103) is provided with a plurality of first sliding sleeves (204), second sliding sleeves (206) and third sleeves (214) in a ring array; the second sliding sleeve (206) is slidably connected to a second sliding rod (207) inside; the first sliding sleeve (204) is slidably connected to a detection pressure rod (205) inside; the angle of the first sliding sleeve (204) is adjusted by sliding the second sliding rod (207) inside the second sliding sleeve (206), so that the first sliding sleeve (204) is adjusted in angle accordingly with the change in the position of the bearing sliding block (232); the interior of the third sleeve (214) is connected to the interior of the second sliding sleeve (206) and the interior of the first sliding sleeve (204) through a pipeline, respectively; and the telescopic action of the detection pressure rod (205) and the second sliding rod (207) is regulated by changing the amount of liquid inside the third sleeve (214); The third sleeve (214) is fixedly connected to the detection platform (103); the interior of the third sleeve (214) is slidably connected to a piston rod (213); the interior of the third sleeve (214) is fixedly connected to a second constraint block (215); the second constraint block (215) is slidably connected to a rectangular groove provided on the surface of the piston rod (213); the surface of the piston rod (213) is hinged with a connecting rod (212); the surface of the detection platform (103) is mounted with a first electric push rod (210) via a U-shaped frame; the end of the output shaft of the first electric push rod (210) is fixedly connected to a connecting ring (211); and the connecting rods (212) are hinged to the connecting ring (211); A liquid separation box (216) is provided on a side of the third sleeve (214) away from the connecting rod (212), and the liquid separation box (216) is fixedly connected to the third sleeve (214). An adjusting motor (217) is installed on the surface of the liquid separation box (216), and liquid passage tubes (220) are respectively fixedly connected to first circular holes symmetrically opened on the surface of the liquid separation box (216), one of the liquid passage tubes (220) is connected to the interior of the second sliding sleeve (206) through a pipeline, and the other liquid passage tube (220) is connected to the interior of the first sliding sleeve (204) through a pipeline. The liquid separation box (216) is connected to the inside of the third sleeve (214), the inside of which is rotatably connected to an adjusting rotating block (218), the surface of which is provided with an L-shaped through groove (219), the liquid separation box (216) is connected to the inside of the third sleeve (214) via the L-shaped through groove (219) and a second circular hole provided on the surface of the third sleeve (214), the output shaft of the adjusting motor (217) is rotatably connected to the liquid separation box (216) via a third bearing and a first dynamic seal, and the output shaft of the adjusting motor (217) is fixedly connected to the adjusting rotating block (218).

2. The micro switch pressing life detection device according to claim 1, characterized in that: The surface of the detection platform (103) is provided with a plurality of placement grooves (201) in a ring array, the surface of the first sliding sleeve (204) is symmetrically fixedly connected with a gear (203), the gear (203) is rotatably connected to the inside of the placement groove (201) via a second bearing, the second sliding sleeve (206) is fixedly connected to the surface of the detection platform (103), the end of the second sliding rod (207) is fixedly connected with a U-shaped toothed plate (208), the gear (203) is meshedly connected to the U-shaped toothed plate (208) via teeth on the bottom surface of the U-shaped toothed plate (208), a first constraint block (209) is slidably connected in a constraint groove provided on the surface of the U-shaped toothed plate (208), and the first constraint block (209) is fixedly connected to the detection platform (103).

3. The micro switch pressing life detection device according to claim 2, characterized in that: The surface of the base (101) is fixedly connected to a plurality of groups of fixed blocks (228) in a circular array, each group of the fixed blocks (228) is fixedly connected to a protective shell (229), each group of the arc tracks (230) is fixedly connected to the inner wall of the corresponding protective shell (229), the bearing slider (232) is slidably connected to the arc track (230) through an arc groove provided on the surface of the arc track (230), an arc support block (231) is provided inside the protective shell (229), the arc support block (231) is fixedly connected to the corresponding two arc tracks (230), and a liquid capsule (237) is fixedly connected to the surface of the arc support block (231). An adjusting roller (236) is arranged between the arc-shaped support block (231) and the protective shell (229), the adjusting roller (236) is in contact with the liquid sac (237), and the liquid inside the liquid sac (237) and located on both sides of the adjusting roller (236) cannot flow through due to the squeezing of the adjusting roller (236); a first connecting rod (233) is fixedly connected to the surface of the supporting slider (232), a first connecting plate (234) is fixedly connected to the surface of the first connecting rod (233), a second connecting rod (235) is rotatably connected to the surface of the first connecting plate (234) via a fourth bearing, and the second connecting rod (235) is fixedly connected to the adjusting roller (236).

4. The micro switch pressing life detection device according to claim 3, characterized in that: The liquid regulating block (238) is symmetrically provided with a first cavity (240) inside, and the surface of the liquid regulating block (238) is symmetrically provided with pipe connection ports (243), the pipe connection ports (243) are respectively connected to the inside of the corresponding first cavity (240), and the two pipe connection ports (243) are respectively connected to the liquid capsule (237) through pipes, and the first cavity (240) is respectively provided with a J-shaped liquid groove (241) and a second liquid groove (242), and an adjusting slider (239) is slidably connected to the second sliding groove provided on the surface of the liquid regulating block (238), and the adjusting slider (239) is The block (239) is symmetrically provided with third liquid-passing grooves (244) inside, a water pump (246) is installed on the surface of the regulating slider (239), and the water inlet and the water outlet of the water pump (246) are respectively connected to the inside of the two third liquid-passing grooves (244), a second electric push rod (245) is installed on the surface of the regulating slider (239), the end of the output shaft of the second electric push rod (245) is fixedly connected to the surface of the liquid regulating block (238), and the second slide groove provided on the surface of the liquid regulating block (238) is connected to the inside of the J-shaped liquid-passing groove (241) and the second liquid-passing groove (242).

5. The micro switch pressing life detection device according to claim 4, characterized in that: The surface of the bearing slider (232) is symmetrically fixedly connected with an L-shaped block (301); a locking block (302) is symmetrically arranged between the two L-shaped blocks (301); the locking block (302) is slidably connected to the L-shaped block (301) and the bearing slider (232); a plurality of locking springs (303) are symmetrically arranged on the surface of the locking block (302); two ends of the locking spring (303) are respectively fixed to the corresponding L-shaped block (301) and the locking block (302). The mounting block (304) is connected to the two engaging blocks (302), and the mounting block (304) is engaged with the inside of the two engaging blocks (302) through a slot provided on the surface of the engaging block (302). An elastic pole piece is provided at the bottom of the mounting block (304), and a pin corresponding to the elastic pole piece on the surface of the mounting block (304) is provided on the surface of the bearing slider (232). The surface of the engaging block (302) is in conflict with the surface of the arc track (230).

6. The micro switch pressing life detection device according to claim 5, characterized in that: The surface of the detection platform (103) is fixedly connected to a support mounting frame (248) in a circular array, and a distance sensor (249) is installed on the surface of the support mounting frame (248). A sensing plate (251) is arranged directly below the distance sensor (249), and the sensing plate (251) is fixedly connected to the corresponding second sliding rod (207). A control panel is installed on the surface of the base (101), and the control panel is electrically connected to the first electric push rod (210), the drive motor (102), the second electric push rod (245) and the water pump (246) through wires.

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