Piezoresistor pulse life automatic screening device

Abstract

The invention relates to the field, and discloses a piezoresistor pulse life automatic screening device which comprises the following steps that a machining table is included, a conveying device is installed on the rear side of the machining table, a steering mechanism is arranged at the top of the conveying device, and the steering mechanism is used for adjusting the orientation of a piezoresistor; a moving mechanism is arranged at the top end of the machining table and used for sucking or taking the piezoresistor, and an adjusting mechanism is arranged at the top of the machining table. According to the invention, after piezoresistors enter through the conveying device, the first motor is started to drive the turntable and a cylinder on the turntable to move, the piezoresistors are separated one by one and guided through linkage of the U-shaped rod and the moving plate, and then the bevel gear set and the rotating long rod are driven by the conveying device to enable the turntable in the connecting frame to rotate and cooperate with the stop block to adjust the direction of the piezoresistors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of watch packaging, in particular to a piezoresistor pulse life automatic screening device. BACKGROUND

[0002] The piezoresistor is a kind of semiconductor ceramic element with nonlinear volt-ampere characteristic, and the core material is mainly metal oxide such as zinc oxide, and its key characteristic is that at a specified temperature, when the applied voltage is lower than the nominal threshold, it shows high resistance state, and the leakage current is extremely small, and when the voltage exceeds the threshold, the resistance will rapidly decrease to low resistance state, allowing a large amount of current to pass through, thereby clamping the voltage across the two ends within a safe range, and is widely used in electronic devices, power systems and industrial control fields, mainly for transient overvoltage protection, voltage stabilization and electromagnetic interference suppression, with the advantages of fast response speed, large current capacity, small size and low cost, and becomes one of the core protection elements in the circuit to resist overvoltage impact.

[0003] The piezoresistor pulse life automatic screening device is an automatic detection and sorting equipment for the pulse resistance performance of piezoresistor, and the core function is to apply standard pulse impact on batch piezoresistors through pre-set pulse parameters, to monitor the resistance change, leakage current, clamping voltage and other key electrical parameters of the element in the impact process in real time, to automatically judge whether the pulse life of the piezoresistor meets the standard according to the pre-set qualified threshold, and to complete the accurate sorting of qualified products and failed or substandard products. The device integrates pulse generation module, parameter detection module, automatic feeding and discharging mechanism and sorting execution mechanism, has the characteristics of high detection efficiency, accurate parameter control and high automation degree of operation, can effectively replace manual detection, avoid human error, and is suitable for batch quality control in piezoresistor production process, and can ensure that the pulse resistance performance of the products meets the reliability requirements of the application scene.

[0004] In the prior art, the surface of the chip piezoresistor is smooth, and when the vibrating disc is fed, it is easy to be electrostatically adsorbed or frictionally adhered, resulting in "multiple materials being discharged at the same time" or "material channel idling", which affects the screening efficiency. In the use process, the unqualified resistors with bent leads and size deviation are removed by manual or small screening equipment before feeding, to avoid the indirect accumulation and adhesion of the subsequent materials caused by the jamming of such abnormal pieces in the material channel; at the same time, the dust and oil stains on the surface of the resistor are cleaned to reduce the adhesion and electrostatic adsorption caused by impurities. In the prior art, when the piezoresistor is detected, the pulse energy borne by the resistors with different orientations is inconsistent, and the test conditions of the same batch of products lack consistency. SUMMARY

[0005] The purpose of the present application is to provide a piezoresistor pulse life automatic screening device, which solves the problem of inconsistent pulse energy borne by resistors with different orientations and inconsistent test conditions of the same batch of products.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: A kind of pressure sensitive resistance pulse life automatic screening device, including processing table, the rear side of the processing table is equipped with conveying device, the top of the conveying device is provided with steering mechanism, the steering mechanism is used to adjust the orientation of pressure sensitive resistance, the top of the processing table is provided with moving mechanism, the moving mechanism is used to suck or take pressure sensitive resistance, the top of the processing table is provided with adjusting mechanism, the adjusting mechanism is used to more accurately measure pressure sensitive resistance, the steering mechanism includes first motor, the first motor is fixedly connected at the bottom of the conveying device, the output of the first motor is fixedly connected with rotating shaft, the bottom of the rotating shaft is fixedly connected with rotating disc, the bottom of the rotating disc is rotatably connected with placing cylinder on both sides, the outside of the placing cylinder is rotatably connected with connecting shaft, the outside of the connecting shaft is rotatably connected with rotating cylinder shaft, the outside of the rotating cylinder shaft is rotatably connected with U-shaped rod, the other end of the U-shaped rod is rotatably connected with moving plate, the top of the conveying device is fixedly connected with U-shaped frame, the other end of the moving plate is rotatably connected with sliding cylinder, the sliding cylinder is slidably connected in the inner wall of the U-shaped frame, and the U-shaped rod and the middle part of the U-shaped frame are slidably connected.

[0007] Through the above technical scheme, the first motor is fixedly connected with the bottom of the conveying device, the output of the first motor is fixedly connected with rotating shaft, the bottom of the rotating shaft is fixedly connected with rotating disc, the bottom of the rotating disc is rotatably connected with placing cylinder on both sides, the outside of the placing cylinder is rotatably connected with connecting shaft, the outside of the connecting shaft is rotatably connected with rotating cylinder shaft, the outside of the rotating cylinder shaft is rotatably connected with U-shaped rod, the other end of the U-shaped rod is rotatably connected with moving plate, the top of the conveying device is fixedly connected with U-shaped frame, the other end of the moving plate is rotatably connected with sliding cylinder, the sliding cylinder is slidably connected in the inner wall of the U-shaped frame, and the U-shaped rod and the middle part of the U-shaped frame are slidably connected.

[0008] Preferably, the outside of the conveying device is equipped with conveyor belt, the front side of the conveyor belt is fixedly connected with mounting round rod, the other end of the mounting round rod is fixedly connected with first bevel gear, the front side of the conveying device is equipped with connecting frame, the inside of the connecting frame is fixedly connected with first stop block and second stop block respectively on both sides, the outside of the second stop block is fixedly connected with baffle, the inside of the connecting frame is rotatably connected with rotating disc, the middle part of the rotating disc is fixedly connected with rotating long rod, the bottom end of the rotating long rod is fixedly connected with second bevel gear, and the first bevel gear is meshingly connected with the second bevel gear.

[0009] The outer side of the conveying device is provided with a conveying belt, the front side of the conveying belt is fixedly connected with a mounting round rod, the other end of the mounting round rod is fixedly connected with a first bevel gear, the front side of the conveying device is provided with a connecting frame, the inner sides of the connecting frame are fixedly connected with a first stop block and a second stop block respectively, the outer side of the second stop block is fixedly connected with a stop sheet, the inner side of the connecting frame is rotatably connected with a rotating long rod, the middle part of the rotating long rod is fixedly connected with a rotating disc, the bottom of the rotating long rod is fixedly connected with a second bevel gear, and the first bevel gear and the second bevel gear are in meshing connection.

[0010] Preferably, the moving mechanism comprises a support frame fixedly connected to the top of the machining table, a gear ring fixedly connected to the top of the support frame, a rotary air cylinder fixedly connected to the top of the support frame, a first connecting long rod fixedly connected to the output end of the rotary air cylinder, a rotating short rod fixedly connected to the other end of the first connecting long rod, a metal gear rotatably connected to the outer side of the rotating short rod, the gear ring and the metal gear being in meshing connection, a second connecting long rod fixedly connected to the top of the rotating short rod, rotating columns rotatably connected to the two sides of the gear ring, a first connecting short rod rotatably connected to the other end of each rotating column, a second connecting short rod rotatably connected to the other end of each first connecting short rod, the two second connecting short rods being rotatably connected to the two ends of the second connecting long rod, connecting round rods fixedly connected to the top of the second connecting long rod, mounting rods fixedly connected to the top of the connecting round rods, a grab fixedly connected to the bottom of one of the mounting rods, and a suction disc fixedly connected to the bottom of the other mounting rod.

[0011] The rotating air cylinder mounted on the support frame is started, and the kinetic energy generated thereby can drive the first connecting long rod and the rotating short rod to move. The metal gear mounted on the rotating short rod can be in meshing transmission with the gear ring mounted on the support frame, thereby driving the second connecting long rod mounted on the rotating short rod to move. The rotating columns are mounted on the front and rear sides of the gear ring, the first connecting short rods are rotatably arranged on the outer sides of the rotating columns, the second connecting short rods are driven to move by the first connecting short rods, and the second connecting short rods further rotate in cooperation with the second connecting long rod. The connecting round rods are fixedly connected to the two ends of the second connecting long rod, the mounting rods are further mounted on the connecting round rods, the grab is mounted on one of the mounting rods, and the suction disc is mounted on the other mounting rod.

[0012] Preferably, the adjusting mechanism comprises a protection frame fixedly connected to the top of the processing table, an installation plate fixedly connected to the inner side of the protection frame, a second motor fixedly connected to the back side of the installation plate, a rotating round rod fixedly connected to the output end of the second motor, two rotating blocks rotatably connected to the two sides of the rotating round rod, a pressing rod fixedly connected to the bottom of the rotating block, a limiting sheet fixedly connected to the bottom of the pressing rod, a hollow rod slidably connected to the outer side of the limiting sheet, a spring fixedly connected to the bottom of the limiting sheet, an installation square block fixedly connected to the bottom end of the hollow rod, two connecting square plates fixedly connected to the two sides of the installation square block, a center column fixedly connected to the outer side of the connecting square plate, a placing plate rotatably connected to the outer side of the center column, two groups of steel wires fixedly connected to the two ends of the rotating round rod, two placing rods fixedly connected to the other ends of the two groups of steel wires, the placing rods being fixedly connected to the top of the placing plate, a pushing cylinder fixedly connected to the top of the installation square block, a pushing plate fixedly connected to the output end of the pushing cylinder, two pushing rods rotatably connected to the two ends of the pushing plate, a clamping rod rotatably connected to the outer side of the pushing rod, a limiting rod fixedly connected to the top of the installation square block, the clamping rod being slidably connected to the outer side of the limiting rod, and a clamping block rotatably connected to the middle part of the placing rod.

[0013] Through the above technical scheme, when the annular guide rail is in a running state, it will pass through the protection frame, and the installation plate is fixed to the inner top wall of the protection frame. The second motor installed on the protection frame is started, the output end of the second motor is fixed with a rotating round rod, two rotating blocks are rotatably connected to the rotating round rod, a pressing rod is fixed to the rotating block, a limiting sheet is fixed to the bottom of the pressing rod, the limiting sheet slides in the hollow rod, a spring is fixed to the bottom of the limiting sheet, the spring has the function of compression and rebound, the hollow rod is fixed to the installation square block, two connecting square plates are fixed to the outer side of the installation square block, a center column is installed on the outer side of the connecting square plate, a placing plate is rotatably connected to the center column, the placing plate can rotate around the center column, the spring is in a compressed state, two groups of steel wires are arranged at the two ends of the rotating round rod, the other ends of the steel wires are connected to the placing rods, the placing rods are fixed to the top of the placing plate, when the placing plate moves downward as a whole, the spring relaxes, the placing plate descends, through the action of the pushing cylinder, the pushing plate moves, and then drives the two pushing rods outside the pushing plate to move, so that the clamping rod moves on the limiting rod, the clamping rod is separated from the clamping block, and then the two placing plates can move. An infrared probe is also installed on the outer side of the placing plate.

[0014] Preferably, a loading frame is installed on the front side of the processing table, and a screw is slidably connected to the middle part of the loading frame and is in threaded connection with the processing table.

[0015] Through the above technical scheme, the loading frame is fixed on the processing table through the screw.

[0016] Preferably, the top of the processing table is fixedly connected with an annular guide rail, and the protection frame is arranged on the top of the annular guide rail.

[0017] Through the technical scheme, the annular guide rail is arranged on the processing table.

[0018] Preferably, the clamping rod is in plug-in fit with the clamping block, and the bottom of the placing plate is provided with an infrared probe.

[0019] Through the technical scheme, the clamping rod can be matched with the clamping block to realize clamping, and the infrared probe is further arranged on the placing plate.

[0020] Preferably, the bottom of the connecting frame is fixedly connected with a U-shaped fixed rod, and the first bevel gear is rotatably connected to the outside of the U-shaped fixed rod.

[0021] Through the technical scheme, the U-shaped fixed rod is fixed on the connecting frame, and can provide support for the first bevel gear.

[0022] Preferably, the grab is arranged on one side of one of the mounting rods close to the loading frame, and the suction disc is arranged on one side of the other mounting rod close to the conveying device.

[0023] Through the technical scheme, the grab is arranged on one of the mounting rods and located on the top of the loading frame, and the suction disc is arranged on the other mounting rod.

[0024] Preferably, the front side of the connecting frame is fixedly connected with an inclined block, and the top of the inclined block is provided with a guide groove.

[0025] Through the technical scheme, the inclined block is fixed on the connecting frame, and the guide groove is further arranged on the inclined block.

[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. After the piezoresistor enters through the conveying device, the first motor is started to drive the rotating disc and the cylinder thereon to move, and through the linkage of the U-shaped rod and the moving plate, the piezoresistors are separated one by one and guided, and then the conveying device drives the bevel gear set and the rotating long rod to make the rotating disc in the connecting frame rotate, and the direction of the piezoresistor is adjusted by the stop block, so that the heads of the piezoresistors are uniformly out first, and then the piezoresistors are arranged in order through the guide groove on the inclined block, thereby facilitating detection.

[0027] 2. After the rotary air cylinder is started, the gear and the gear ring are engaged to drive the mechanical arm provided with the suction disc and the grab to move, the suction disc is used for grabbing the arranged piezoresistors and placing them on the annular track, and the grab moves the detected invalid samples into the loading frame, thereby realizing automatic sorting and cost saving.

[0028] 3. The present invention uses a ring track passing through a protective frame, with an internal adjustment mechanism driven by a second motor. The second motor controls the lifting and releasing of the placement plate through a rotating rod, steel wire rope and spring system. The placement plate is equipped with an infrared probe. By adjusting the position and angle of the probe, the signal path can be optimized, interference can be reduced, and stable and accurate temperature measurement of varistors of different sizes can be achieved. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a front view of the present invention; Figure 4 This is a partial structural illustration of the present invention; Figure 5 This is a partial structural breakdown diagram of the present invention; Figure 6 This is a schematic diagram of the moving mechanism of the present invention; Figure 7 This is an exploded view of the adjustment mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a partial structural cross-sectional view of the present invention.

[0030] Wherein, 1, processing table; 2, steering mechanism; 21, first motor; 22, rotating shaft; 23, rotating disc; 24, placing cylinder; 25, connecting shaft; 26, rotating round shaft; 27, U-shaped rod; 28, U-shaped frame; 29, sliding cylinder; 210, moving plate; 211, connecting frame; 212, first stop block; 213, second stop block; 214, rotating disc; 215, rotating long rod; 216, stop sheet; 217, conveying belt; 218, U-shaped fixed rod; 219, mounting round rod; 220, first bevel gear; 221, second bevel gear; 3, moving mechanism; 31, support frame; 32, rotary cylinder; 33, first connecting long rod; 34, toothed ring; 35, rotary short rod; 36, metal gear; 37, second connecting long rod; 38, rotating column; 39, first connecting short rod; 310, second connecting short rod; 311, connecting round rod; 312, mounting rod; 313, grabbing; 314, suction cup; 4, adjusting mechanism; 41, mounting plate; 42, mounting square block; 43, connecting square plate; 44, center column; 45, placing plate; 46, second motor; 47, rotating round rod; 48, steel wire rope; 49, rotating block; 410, placing rod; 411, clamping block; 412, pushing cylinder; 413, pushing plate; 414, pushing rod; 415, clamping rod; 416, limiting rod; 417, hollow rod; 418, spring; 419, limiting sheet; 420, pressing rod; 421, protection frame; 422, infrared probe; 5, annular guide rail; 6, loading frame; 7, screw; 8, conveying device; 9, inclined block; 10, guide groove. DETAILED DESCRIPTION

[0031] The above description is made in connection with the accompanying drawings. Figure 1 The above description is made in connection with the accompanying drawings. Figure 9 The present application is further described in detail.

[0032] The application provides a kind of automatic screening device for pulse life of pressure sensitive resistor, a kind of automatic screening device for pulse life of pressure sensitive resistor, including processing table 1, the rear side of processing table 1 is installed with conveying device 8, the top of conveying device 8 is provided with steering mechanism 2, steering mechanism 2 is used to adjust the orientation of pressure sensitive resistor, the top end of processing table 1 is provided with moving mechanism 3, moving mechanism 3 is used to suck or take pressure sensitive resistor, the top of processing table 1 is provided with adjusting mechanism 4, adjusting mechanism 4 is used to measure pressure sensitive resistor more accurately, steering mechanism 2 includes first motor 21, first motor 21 is fixedly connected at the bottom of conveying device 8, the output end of first motor 21 is fixedly connected with rotating shaft 22, the bottom of rotating shaft 22 is fixedly connected with rotating disc 23, the bottom of rotating disc 23 is rotatably connected with placing cylinder 24 on both sides, placing cylinder 24 is rotatably connected with connecting shaft 25 outside, connecting shaft 25 is rotatably connected with rotating circular shaft 26 outside, rotating circular shaft 26 is rotatably connected with U-shaped rod 27 outside, the other end of U-shaped rod 27 is rotatably connected with moving plate 210, the top of conveying device 8 is fixedly connected with U-shaped frame 28, the other end of moving plate 210 is rotatably connected with sliding cylinder 29, sliding cylinder 29 is slidingly connected in the inner wall of U-shaped frame 28, U-shaped rod 27 is slidingly connected with the middle part of U-shaped frame 28, conveying device 8 is installed with conveyor belt 217 outside, the front side of conveyor belt 217 is fixedly connected with mounting round rod 219, the other end of mounting round rod 219 is fixedly connected with first bevel gear 220, conveying device 8 is installed with connecting frame 211 in front, first stop block 212 and second stop block 213 are fixedly connected in the inside of connecting frame 211 respectively, second stop block 213 is fixedly connected with baffle 216 outside, rotating long rod 215 is rotatably connected in the inside of connecting frame 211, rotating disc 214 is fixedly connected in the middle part of rotating long rod 215, second bevel gear 221 is fixedly connected in the bottom of rotating long rod 215, first bevel gear 220 is meshingly connected with second bevel gear 221, U-shaped fixed rod 218 is fixedly connected in the bottom of connecting frame 211, first bevel gear 220 is rotatably connected outside U-shaped fixed rod 218, U-shaped fixed rod 218 is used to support first bevel gear 220, inclined block 9 is fixedly connected in front of connecting frame 211, guide groove 10 is formed in the top of inclined block 9, inclined block 9 is fixed on connecting frame 211, and guide groove 10 is also formed on inclined block 9, to facilitate the conveying of pressure sensitive resistor.

[0033] Specifically, when the piezoresistor enters the conveying device 8, the first motor 21 is started, and the kinetic energy output by the first motor 21 drives the rotating shaft 22 and the rotating disc 23 fixedly connected to the output end of the first motor 21 to rotate, thereby causing the two placing cylinders 24 on the rotating disc 23 to move, the movement of the placing cylinders 24 drives the connecting shaft 25 and the rotating circular shaft 26 to rotate, and the U-shaped rod 27 is installed on the outer side of the rotating circular shaft 26, so that the U-shaped rod 27 can slide on the U-shaped frame 28. When the U-shaped rod 27 moves, the moving plate 210 on the outer side of the U-shaped rod 27 is driven to move, and when the U-shaped rod 27 pushes one end of the moving plate 210, the sliding cylinder 29 installed at the other end of the moving plate 210 moves inside the U-shaped frame 28, so that the piezoresistors transported on the conveying device 8 pass through the gap between the two moving plates 210 one by one. After the piezoresistor passes through the moving plate 210, the conveying device 8 drives the transmission belt 217, the installed circular rod 219, the first bevel gear 220, the second bevel gear 221 and the rotating long rod 215 to cooperate, thereby driving the rotating disc 214 installed inside the connecting frame 211 to rotate. The first stop block 212 and the second stop block 213 are respectively installed on the left side and the right side inside the connecting frame 211. When the piezoresistors with inconsistent orientations enter the rotating disc 214, since the rotating disc 214 and the rotating long rod 215 are in a rotating state, if the electrode pin on the piezoresistor enters the rotating disc 214 first, the rotating long rod 215 will drive the piezoresistor to rotate, and the first stop block 212 and the second stop block 213 on the two sides cooperate to make the head of the piezoresistor come out first. The piezoresistor passes through the guide groove 10 formed on the inclined block 9 to realize uniform arrangement, so as to facilitate subsequent detection. The bottom of the connecting frame 211 is fixedly connected with the U-shaped fixed rod 218, the first bevel gear 220 is rotatably connected to the outer side of the U-shaped fixed rod 218, the U-shaped fixed rod 218 is used for supporting the first bevel gear 220, the front side of the connecting frame 211 is fixedly connected with the inclined block 9, the top of the inclined block 9 is provided with the guide groove 10, the inclined block 9 is fixed on the connecting frame 211, and the inclined block 9 is provided with the guide groove 10, so as to facilitate the conveying of the piezoresistor.

[0034] The moving mechanism 3 comprises a support frame 31 fixedly connected to the top of the machining table 1, the top of the support frame 31 is fixedly connected with a gear ring 34, the top of the support frame 31 is fixedly connected with a rotary air cylinder 32, the output end of the rotary air cylinder 32 is fixedly connected with a first connecting long rod 33, the other end of the first connecting long rod 33 is fixedly connected with a rotary short rod 35, the outer side of the rotary short rod 35 is rotatably connected with a metal gear 36, the gear ring 34 is engaged with the metal gear 36, the top of the rotary short rod 35 is fixedly connected with a second connecting long rod 37, both sides of the gear ring 34 are rotatably connected with rotating columns 38, the other end of the rotating column 38 is movably connected with a first connecting short rod 39, the other end of the first connecting short rod 39 is rotatably connected with a second connecting short rod 310, two second connecting short rods 310 are rotatably connected at both ends of the second connecting long rod 37, both sides of the top of the second connecting long rod 37 are fixedly connected with connecting round rods 311, the top of the connecting round rod 311 is fixedly connected with mounting rods 312, one of the mounting rods 312 is mounted with a grab 313 at the bottom, and the other mounting rod 312 is mounted with a suction disc 314 at the bottom.

[0035] Specifically, the rotating cylinder 32 installed on the support frame 31 is started, and the kinetic energy generated thereby can drive the first connecting long rod 33 and the rotating short rod 35 to move, the rotating short rod 35 is installed with the metal gear 36, the metal gear 36 can be engaged with the gear ring 34 installed on the support frame 31 to drive the second connecting long rod 37 installed on the rotating short rod 35 to move, the front and back sides of the gear ring 34 are installed with the rotating column 38, the outer side of the rotating column 38 is rotatably provided with the first connecting short rod 39, the first connecting short rod 39 drives the second connecting short rod 310 to move, and the second connecting short rod 310 also rotates with the second connecting long rod 37, the two ends of the second connecting long rod 37 are fixed with the connecting round rod 311, the connecting round rod 311 is also installed with the mounting rod 312, one of the mounting rods 312 is installed with the grab 313, and the other mounting rod 312 is installed with the suction disc 314, the suction disc 314 is used for sucking the arranged new sample of the pressure-sensitive resistor and placing it on the annular guide rail 5, and the grab 313 is used for grabbing the invalid sample and extracting it into the loading frame 6, so that the cost is effectively saved, the grab 313 is installed on the side of the front mounting rod 312 close to the loading frame 6, and the suction disc 314 is installed on the side of the rear mounting rod 312 close to the conveying device 8.

[0036] The adjusting mechanism 4 comprises a protection frame 421 fixedly connected to the top of the machining table 1, the inner side of the protection frame 421 is fixedly connected with a mounting plate 41, the rear side of the mounting plate 41 is fixedly connected with a second motor 46, the output end of the second motor 46 is fixedly connected with a rotating round rod 47, both sides of the rotating round rod 47 are rotatably connected with rotating blocks 49, the bottom of the rotating block 49 is fixedly connected with a pressing rod 420, the bottom of the pressing rod 420 is fixedly connected with a limiting sheet 419, the outer side of the limiting sheet 419 is slidably connected with a hollow rod 417, the bottom of the limiting sheet 419 is fixedly connected with a spring 418, the bottom end of the hollow rod 417 is fixedly connected with a mounting square block 42, both sides of the mounting square block 42 are fixedly connected with connecting square plates 43, the outer side of the connecting square plate 43 is fixedly connected with a center column 44, the outer side of the center column 44 is rotatably connected with a placing plate 45, both ends of the rotating round rod 47 are fixedly connected with two groups of steel wires 48, the other ends of the two groups of steel wires 48 are fixedly connected with placing rods 410, the placing rods 410 are fixedly connected to the top of the placing plate 45, the top of the mounting square block 42 is fixedly connected with a push air cylinder 412, the output end of the push air cylinder 412 is fixedly connected with a push plate 413, both ends of the push plate 413 are rotatably connected with push rods 414, the outer side of the push rod 414 is rotatably connected with clamping rods 415, the top of the mounting square block 42 is fixedly connected with a limiting rod 416, the clamping rod 415 is slidably connected to the outer side of the limiting rod 416, the middle part of the placing rod 410 is rotatably connected with a clamping block 411, the top of the machining table 1 is fixedly connected with an annular guide rail 5, the protection frame 421 is arranged on the top of the annular guide rail 5, the clamping rod 415 is insertedly matched with the clamping block 411, the bottom of the placing plate 45 is provided with an infrared probe 422, the front side of the machining table 1 is provided with a loading frame 6, the middle part of the loading frame 6 is slidably connected with a screw 7, and the screw 7 is threadedly connected with the machining table 1.

[0037] Specifically, when the ring guide rail 5 is in operation, it will pass through the protection frame 421, the mounting plate 41 is fixed to the inner top wall of the protection frame 421, the second motor 46 mounted on the protection frame 421 is started, the output end of the second motor 46 is fixed with a rotating round rod 47, two rotating blocks 49 are rotatably connected to the rotating round rod 47, and the pressing rod 420 is fixed to the rotating block 49. The bottom of the pressing rod 420 is fixed with a limiting piece 419, the limiting piece 419 slides in the hollow rod 417, the bottom of the limiting piece 419 is fixed with a spring 418, the spring 418 plays a compression and rebound role, the hollow rod 417 is fixed on the mounting block 42, the outer side of the mounting block 42 is fixed with two connecting square plates 43, the outer side of the connecting square plate 43 is provided with a center column 44, and the center column 44 is also rotatably connected with a placing plate 45. The placing plate 45 can rotate around the center column 44, the spring 418 is in a compressed state, the two ends of the rotating round rod 47 are respectively provided with two steel wire ropes 48, the other end of the steel wire rope 48 is connected to the placing rod 410, and the placing rod 410 is fixed to the top of the placing plate 45. When the placing plate 45 moves downward as a whole, the spring 418 is relaxed, the placing plate 45 is lowered, the pushing plate 413 is moved through the action of the pushing cylinder 412, and then the two pushing rods 414 outside the pushing plate 413 are moved, so that the clamping rod 415 moves on the limiting rod 416, the clamping rod 415 exits the clamping block 411, and then the two placing plates 45 can move. The outer side of the placing plate 45 is also provided with an infrared probe 422, the spatial position and angle of the infrared probe 422 are adjusted to ensure that the infrared radiation signal transmission path is the shortest and the interference is the least, improve the measurement accuracy and signal stability, and effectively reduce the sample surface reflection interference, ensure that different batches and different sizes of the piezoresistor can obtain stable and accurate temperature measurement results, the top of the machining table 1 is fixedly connected with the ring guide rail 5, the protection frame 421 is arranged on the top of the ring guide rail 5, the clamping rod 415 can cooperate with the clamping block 411 to realize clamping, the bottom of the placing plate 45 is provided with the infrared probe 422, and the front side of the machining table 1 is provided with a loading frame 6. The outer side of the loading frame 6 is connected with a screw 7 in a threaded manner.

[0038] Working principle: when the pressure sensitive resistor enters the conveying device 8, the first motor 21 is started, the kinetic energy of the first motor 21 drives the output fixed rotating shaft 22 and the rotating disc 23 to rotate, and then the two placed cylinders 24 on the rotating disc 23 move, the movement of the placed cylinders 24 drives the connecting shaft 25 and the rotating cylindrical shaft 26 to rotate, and the U-shaped rod 27 is also arranged outside the rotating cylindrical shaft 26, so that the U-shaped rod 27 can slide on the U-shaped frame 28, when the U-shaped rod 27 moves, the outer moving plate 210 moves, when the U-shaped rod 27 pushes one end of the moving plate 210, the sliding cylinder 29 installed at the other end of the moving plate 210 can move inside the U-shaped frame 28, thereby transporting the pressure sensitive resistors on the conveying device 8 one by one through the gap between the two moving plates 210, when the pressure sensitive resistor passes through the moving plate 210, the conveying device 8 drives the transmission belt 217, the installed circular rod 219, the first bevel gear 220, the second bevel gear 221 and the rotating long rod 215 to cooperate, thereby driving the rotating disc 214 installed inside the connecting frame 211 to rotate, and the first stop block 212 and the second stop block 213 are arranged on the left and right sides in the connecting frame 211, when the pressure sensitive resistors in different directions enter the rotating disc 214, since the rotating disc 214 and the rotating long rod 215 are in a rotating state, when the electrode pin on the pressure sensitive resistor enters the rotating disc 214 first, the rotating long rod 215 drives the pressure sensitive resistor to rotate, the first stop block 212 and the second stop block 213 on the two sides cooperate, thereby making the head of the pressure sensitive resistor come out first, and then the pressure sensitive resistor passes through the guide groove 10 formed on the inclined block 9, thereby arranging the pressure sensitive resistors uniformly, which is convenient for subsequent detection. The rotating cylinder 32 installed on the support frame 31 is started, the kinetic energy of the rotating cylinder 32 can drive the first connecting long rod 33 and the rotating short rod 35 to move, the metal gear 36 is arranged on the rotating short rod 35, the metal gear 36 can mesh with the gear ring 34 installed on the support frame 31 to drive, thereby driving the second connecting long rod 37 installed on the rotating short rod 35 to move, the rotating columns 38 are arranged on the front and back sides of the gear ring 34, the first connecting short rod 39 rotates outside the rotating column 38, the first connecting short rod 39 drives the second connecting short rod 310 to move, and the second connecting short rod 310 also cooperates with the second connecting long rod 37 to rotate, the connecting circular rods 311 are fixed at both ends of the second connecting long rod 37, and the mounting rods 312 are also arranged on the connecting circular rods 311, the clamps 313 are installed on one of the mounting rods 312, and the suction cups 314 are installed on the other mounting rods 312, the suction cups 314 are used to suck the arranged pressure sensitive resistors as new samples and place them on the annular guide rail 5, and the clamps 313 are used to grasp the failed samples and extract the failed samples into the loading frame 6, thereby effectively saving costs. When the ring-shaped guide rail 5 is running, the protection frame 421 is passed, the mounting plate 41 is fixed to the inner top wall of the protection frame 421, the second motor 46 mounted on the protection frame 421 is started, the rotating round rod 47 is fixed at the output end of the second motor 46, the two rotating blocks 49 are rotated on the rotating round rod 47, and the pressing rod 420 is fixed on the rotating block 49, the bottom of the pressing rod 420 is fixed with the limiting sheet 419, the limiting sheet 419 slides in the hollow rod 417, the spring 418 is fixed at the bottom of the limiting sheet 419, which plays a compression and rebound role, and the hollow rod 417 is fixed on the mounting block 42, the two connecting square plates 43 are fixed outside the mounting block 42, the center column 44 is arranged outside the connecting square plate 43, and the placement plate 45 is rotatably arranged on the center column 44, the spring 418 is in a compressed state at this time, the two ends of the rotating round rod 47 are respectively provided with two steel wire ropes 48, the other end of the steel wire rope 48 is connected to the placing rod 410, and the placing rod 410 is fixed to the top of the placement plate 45, when the placement plate 45 moves downward as a whole, the spring 418 is relaxed, the placement plate 45 is lowered, the pushing plate 413 is moved through the pushing effect of the pushing cylinder 412, thereby driving the two pushing rods 414 outside the pushing plate 413 to move, the clamping rod 415 moves on the limiting rod 416, the clamping rod 415 exits the clamping block 411, thereby the two placement plates 45 can move, and the infrared probe 422 is further arranged outside the placement plate 45, the spatial position and angle of the infrared probe 422 are adjusted to ensure that the infrared radiation signal transmission path is the shortest and the interference is the least, improve the measurement accuracy and signal stability, and effectively reduce the sample surface reflection interference, so that different batches and different sizes of the piezoresistor can obtain stable and accurate temperature measurement results.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure sensitive resistance pulse life automatic screening device, comprising a processing table (1), characterized in that, The rear side of the processing table (1) is provided with a conveying device (8), the top of the conveying device (8) is provided with a steering mechanism (2), the steering mechanism (2) is used for adjusting the orientation of the pressure sensitive resistor, the top end of the processing table (1) is provided with a moving mechanism (3), the moving mechanism (3) is used for sucking or taking the pressure sensitive resistor, the top of the processing table (1) is provided with an adjusting mechanism (4), the adjusting mechanism (4) is used for more accurately measuring the pressure sensitive resistor; The steering mechanism (2) comprises a first motor (21), the first motor (21) is fixedly connected to the bottom of the conveying device (8), the output end of the first motor (21) is fixedly connected with a rotating shaft (22), the bottom of the rotating shaft (22) is fixedly connected with a rotating disc (23), the bottom of the rotating disc (23) is rotatably connected with a placing cylinder (24) on both sides, the outer side of the placing cylinder (24) is rotatably connected with a connecting shaft (25), the outer side of the connecting shaft (25) is rotatably connected with a rotating cylinder shaft (26), the outer side of the rotating cylinder shaft (26) is rotatably connected with a U-shaped rod (27), the other end of the U-shaped rod (27) is rotatably connected with a moving plate (210), the top of the conveying device (8) is fixedly connected with a U-shaped frame (28), the other end of the moving plate (210) is rotatably connected with a sliding cylinder (29), the sliding cylinder (29) is slidingly connected to the inner wall of the U-shaped frame (28), and the U-shaped rod (27) and the middle part of the U-shaped frame (28) are slidingly connected.

2. The automatic screening device for piezoresistive pulse lifetime according to claim 1, characterized in that, The outer side of the conveying device (8) is provided with a conveyor belt (217), the front side of the conveyor belt (217) is fixedly connected with a mounting circular rod (219), the other end of the mounting circular rod (219) is fixedly connected with a first bevel gear (220), the front side of the conveying device (8) is provided with a connecting frame (211), the inner sides of the connecting frame (211) are respectively fixedly connected with a first stop block (212) and a second stop block (213), the outer side of the second stop block (213) is fixedly connected with a baffle (216), the inner side of the connecting frame (211) is rotatably connected with a rotating disc (214), the middle part of the rotating disc (214) is fixedly connected with a rotating long rod (215), the bottom end of the rotating long rod (215) is fixedly connected with a second bevel gear (221), and the first bevel gear (220) and the second bevel gear (221) are meshedly connected.

3. The automatic screening device for piezoresistive pulse lifetime according to claim 1, characterized in that, Said moving mechanism (3) includes support frame (31), support frame (31) is fixedly connected to the top of the processing platform (1), the top of the support frame (31) is fixedly connected with gear ring (34), the top of the support frame (31) is fixedly connected with rotary cylinder (32), the output end of the rotary cylinder (32) is fixedly connected with first connecting long rod (33), the other end of the first connecting long rod (33) is fixedly connected with rotary short rod (35), the outer side of the rotary short rod (35) is rotatably connected with metal gear (36), the gear ring (34) is engaged with the metal gear (36), the top of the rotary short rod (35) is fixedly connected with second connecting long rod (37), both sides of the gear ring (34) are rotatably connected with rotating column (38), the other end of the rotating column (38) is movably connected with first connecting short rod (39), the other end of the first connecting short rod (39) is rotatably connected with second connecting short rod (310), two second connecting short rods (310) are rotatably connected at both ends of the second connecting long rod (37), both sides of the top of the second connecting long rod (37) are fixedly connected with connecting round rod (311), the top of the connecting round rod (311) is fixedly connected with mounting rod (312), one of the mounting rods (312) is mounted with grab (313) at the bottom, the other mounting rod (312) is provided with suction cup (314) at the bottom.

4. The automatic screening device for pressure sensitive resistance pulse lifetime according to claim 1, characterized in that, The adjusting mechanism (4) comprises a protection frame (421) fixedly connected to the top of the machining table (1), an installation plate (41) fixedly connected to the inner side of the protection frame (421), a second motor (46) fixedly connected to the rear side of the installation plate (41), a rotating round rod (47) fixedly connected to the output end of the second motor (46), rotating blocks (49) rotatably connected to the two sides of the rotating round rod (47), a pressing rod (420) fixedly connected to the bottom of the rotating block (49), a limiting sheet (419) fixedly connected to the bottom of the pressing rod (420), a hollow rod (417) slidably connected to the outer side of the limiting sheet (419), a spring (418) fixedly connected to the bottom of the limiting sheet (419), an installation square block (42) fixedly connected to the bottom end of the hollow rod (417), connecting square plates (43) fixedly connected to the two sides of the installation square block (42), a central column (44) fixedly connected to the outer side of the connecting square plate (43), a placing plate (45) rotatably connected to the outer side of the central column (44), two groups of steel wire ropes (48) fixedly connected to the two ends of the rotating round rod (47), and placing rods (410) fixedly connected to the other ends of the two groups of steel wire ropes (48).

5. The automatic screening device for pressure sensitive resistance pulse lifetime according to claim 3, characterized in that, The front side of the machining table (1) is provided with a loading frame (6), and the middle part of the loading frame (6) is slidably connected with a screw (7).

6. The automatic screening device for piezoresistive pulse lifetime according to claim 4, characterized in that, The top of the machining table (1) is fixedly connected with an annular guide rail (5), and the protection frame (421) is arranged on the top of the annular guide rail (5).

7. The automatic screening device for piezoresistive pulse lifetime according to claim 4, characterized in that, The clamping rod (415) is inserted and matched with the clamping block (411), and the bottom of the placing plate (45) is provided with an infrared probe (422).

8. The automatic screening device for piezoresistive pulse lifetime according to claim 2, characterized in that, The bottom of the connecting frame (211) is fixedly connected with a U-shaped fixing rod (218), and the first bevel gear (220) is rotatably connected to the outer side of the U-shaped fixing rod (218).

9. The automatic screening device for piezoresistive pulse lifetime according to claim 3, characterized in that, The grabbing clamp (313) is arranged on one side of one of the installation rods (312) close to the loading frame (6), and the suction cup (314) is arranged on one side of the other installation rod (312) close to the conveying device (8).

10. The automatic screening device for piezoresistive pulse lifetime according to claim 2, characterized in that, The front side of the connecting frame (211) is fixedly connected with an inclined block (9), and the top of the inclined block (9) is provided with a guide groove (10).

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