CN114544077A - Ceramic capacitor type pressure sensor core body testing mechanism - Google Patents
Ceramic capacitor type pressure sensor core body testing mechanism Download PDFInfo
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- CN114544077A CN114544077A CN202210142537.6A CN202210142537A CN114544077A CN 114544077 A CN114544077 A CN 114544077A CN 202210142537 A CN202210142537 A CN 202210142537A CN 114544077 A CN114544077 A CN 114544077A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
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Abstract
本发明涉及了一种陶瓷电容式压力传感器芯体测试机构，包括输送线、沿输送线输送的工装组件、设在输送线上的测试工位；工装组件包括测试下组件；测试下组件的顶侧设有多个测试位，用于对应装载电容芯体；测试工位包括托板和压板；托板用于顶起工装组件，并为测试下组件的多个测试位对应提供压力气体，为电容芯体提供测试压力；压板的底侧安装有测试上组件；测试上组件包括探针组件，测试上组件用于利用压板的下压力压紧在测试位上，并且，探针组件与电容芯体的引线接触连接，反馈电容芯体在测试压力下对应的容量值。本发明的一种陶瓷电容式压力传感器芯体测试机构，测试精确度高，可批量检测，自动化程度高，满足工厂规模化的检测需求。
The invention relates to a core body testing mechanism of a ceramic capacitive pressure sensor, comprising a conveying line, a tooling component conveyed along the conveying line, and a testing station arranged on the conveying line; the tooling component includes a lower testing component; There are multiple test positions on the side for correspondingly loading the capacitor core; the test position includes a support plate and a pressure plate; the support plate is used to lift the tooling components, and provide pressure gas for the multiple test positions of the components under test. The capacitor core body provides test pressure; the bottom side of the pressure plate is provided with the upper test component; the upper test component includes a probe assembly, and the upper test component is used for pressing the pressure plate on the test position, and the probe component and the capacitor core are The leads of the body are connected in contact, and the corresponding capacity value of the capacitor core under the test pressure is fed back. The core body testing mechanism of the ceramic capacitive pressure sensor of the invention has high testing accuracy, can be tested in batches, has a high degree of automation, and can meet the testing requirements of large-scale factories.
Description
Technical Field
The invention relates to the technical field of pressure sensors, in particular to a core body testing mechanism of a ceramic capacitive pressure sensor.
Background
The core body of the ceramic capacitive pressure sensor is used as a pressure sensing element of the pressure sensor, the core body needs to be subjected to pressure testing before leaving a factory, the core body of the ceramic capacitive pressure sensor is tested by adopting a digital bridge and a pressure controller to test the capacitance capacity at present, batch testing is difficult to complete, and the testing efficiency is low. In addition, the capacitor core needs to be additionally subjected to independent code spraying, the product flow code is easy to make mistakes corresponding to test data, and the method is only suitable for research and development and small-amount manufacturing and detection of samples and is not suitable for large-scale detection requirements of factories.
Disclosure of Invention
In order to solve the technical problems, the invention provides the core body testing mechanism of the ceramic capacitive pressure sensor, which has the advantages of high testing accuracy, batch detection and high automation degree, and meets the large-scale detection requirements of factories.
The technical scheme adopted by the invention for solving the technical problems is as follows: a core body testing mechanism of a ceramic capacitive pressure sensor comprises a conveying line, a tool assembly conveyed along the conveying line and a testing station arranged on the conveying line; the tooling assembly comprises a lower testing assembly; the top side of the lower testing component is provided with a plurality of testing positions for correspondingly loading the capacitor core; the test station comprises a supporting plate and a pressing plate; the supporting plate is used for jacking the tool assembly, correspondingly providing pressure gas for a plurality of test positions of the assembly under test and further providing test pressure for the capacitor core; the bottom side of the pressure plate is provided with an upper testing component; the upper testing assembly comprises a probe assembly, the upper testing assembly is used for being pressed on a testing position by utilizing the downward pressure of the pressing plate, and the probe assembly is in contact connection with a lead of the capacitor core body so as to feed back the corresponding capacity value of the capacitor core body under the testing pressure.
Furthermore, the test station also comprises a test installation bottom plate and a test installation top plate arranged above the test installation bottom plate; the test installation bottom plate is provided with a supporting plate lifting mechanism for driving the supporting plate to lift; the test mounting top plate is provided with a test pressing mechanism for driving the pressing plate to press downwards; the conveying line penetrates between the testing installation bottom plate and the testing installation top plate; the supporting plate is used for jacking when the tool assembly is conveyed to the testing station by the conveying line, so that the tool assembly is separated from the conveying line.
Furthermore, the test station also comprises a translation supporting cushion block and a lateral translation driving mechanism for driving the translation supporting cushion block; the translation supporting cushion block is used for driving the translation supporting cushion block to move to the bottom side of the supporting plate through the lateral translation driving mechanism when the supporting plate jacks up the tooling assembly, and then the supporting plate bears pressure when the pressing plate presses down.
Further, the tool assembly further comprises a carrier plate and the lower test assembly arranged on the carrier plate; the carrier plate comprises a carrier plate body, and the lower test assembly comprises a carrier block fixed on the carrier plate body and a positioning plate used for loading the capacitor core body; the carrier block comprises a carrier block body, and a positioning plate caulking groove is formed in the top surface of the carrier block body; a plurality of test slots are distributed on the bottom surface of the positioning plate caulking groove; the positioning plate comprises a positioning plate body, and a capacitor core body mounting hole is formed in the positioning plate body at a position corresponding to the test slot; the capacitor core body mounting hole is embedded with a mounting block; the capacitor core body is arranged in the mounting block; the carrier block body is also provided with a carrier block air hole; the carrier plate body is also provided with carrier plate air holes; one end of the carrier block air hole is communicated with the carrier plate air hole, and the other end of the carrier block air hole is communicated with the corresponding test slot; the positioning plate body is placed in a positioning plate embedding groove of the carrying block, the capacitor core body corresponds to the test groove, and the test groove forms the test position; the supporting plate comprises a supporting plate body; the supporting plate body is provided with supporting plate air holes and supporting plate air distribution holes which are communicated with the supporting plate air holes and correspond to the supporting plate air holes; the supporting plate air hole is used for being connected with high-pressure gas, and then the high-pressure gas is provided for the test groove.
Further, the probe assembly includes probes corresponding to the leads of the capacitive core; the upper testing assembly further comprises an upper fixing block fixedly mounted with the pressing plate, a capacitor core pressing block mounted on the bottom surface of the fixing block and a probe fixing seat mounted on the top side of the fixing block; the probe fixing seat is provided with a fixing seat probe hole corresponding to the probe; a pressing block probe hole communicated with the fixing seat probe hole is formed in the capacitor core pressing block; the bottom end of a probe of the probe assembly penetrates through the probe hole of the fixing seat and then is positioned in the probe hole of the pressing block; the capacitor core pressing block is used for pressing down along with the upper fixing block under the pressing effect of the pressing plate, the capacitor core pressing block acts on the capacitor core, a pressing block probe hole of the capacitor core pressing block is sleeved on a lead of the capacitor core, and the lead of the capacitor core is in contact with a probe in the pressing block probe hole.
Furthermore, the probe assembly also comprises a lead-out circuit board connected with the probe and a multi-PIN connector connected with the lead-out circuit board; an upper cushion block is also arranged between the upper fixed block and the pressure plate; the upper cushion block is provided with a probe assembly accommodating groove, and the leading-out circuit board and the multi-PIN connector are installed in the probe assembly accommodating groove.
Furthermore, the testing mechanism also comprises a code spraying station and a code scanning station which are arranged on the conveying line and positioned on the feeding side of the testing station; the code spraying station is used for spraying codes on the capacitor core bodies conveyed to the tooling assembly at the station; sweep a yard station and be used for sweeping a yard to the electric capacity core that has spouted the sign indicating number on the frock subassembly of being carried to this station department.
Further, the code spraying station comprises a code spraying linear module arranged on the conveying line and a spray head arranged at a moving end of the code spraying linear module; the code spraying linear module is used for driving the spray head to move along the length direction of the conveying line; the code spraying station further comprises a jacking positioning mechanism arranged below the conveying line; the jacking positioning mechanism is used for jacking when the tool assembly is conveyed to the code spraying station from the conveying line so as to separate the tool assembly from the conveying line; the spray head is used for sequentially spraying codes on the capacitor core body on the tooling assembly under the driving of the code spraying linear module; the code scanning station comprises a code scanning mounting frame arranged on the conveying line and a code scanning gun arranged on the code scanning mounting frame; sweep a yard rifle and be used for sweeping yard in proper order to each electric capacity core that sweeps a yard station through flowing through.
Furthermore, the testing mechanism also comprises a full material detection station arranged on the feeding side of the conveying line; the full material detection station comprises a full material detection lifting mechanism arranged above the conveying line and a full material detection travel switch fixed at the moving end of the full material detection lifting mechanism; the full material detection station is used for detecting whether the capacitor core body is fully filled on the tool assembly conveyed to the station.
Further, the conveying line comprises a feeding conveying line, a return conveying line, a first lifting conveying mechanism and a second lifting conveying mechanism; the first lifting conveying mechanism is used for connecting the discharge end of the feeding conveying line and the feed end of the return conveying line; the second lifting conveying mechanism is used for connecting the feeding end of the feeding conveying line and the discharging end of the returning conveying line; the tail end of the feeding conveying line is also provided with a blanking station; the conveying line is also provided with a blanking conveying line at a blanking station; the blanking station comprises a horizontal moving module arranged on the conveying line, a blanking lifting module arranged at the moving end of the horizontal moving module, and a vacuum suction manipulator arranged on the blanking lifting module; the vacuum suction manipulator is used for transferring the capacitor core on the tool assembly conveyed to the station from the feeding conveying line to the discharging conveying line under the driving of the horizontal moving module and the discharging lifting module; the blanking station also comprises a jacking positioning mechanism arranged below the conveying line; the jacking positioning mechanism is used for jacking when the tool assembly is conveyed to the blanking station by the conveying line, so that the tool assembly is separated from the conveying line.
The invention has the advantages that: the ceramic capacitive pressure sensor core body testing mechanism is high in testing accuracy, capable of conducting batch detection, high in automation degree and capable of meeting factory large-scale detection requirements.
Drawings
FIG. 1 is a schematic perspective view of a testing mechanism of an embodiment at a testing station;
FIG. 2 is a perspective view of a test station of the test mechanism of the embodiment;
FIG. 3 is a schematic perspective view of a tooling assembly of the testing mechanism of an embodiment;
FIG. 4 is an exploded view of a tooling assembly of the testing mechanism of an embodiment;
FIG. 5 is a schematic perspective view of a carrier block of a tooling assembly of the testing mechanism of an embodiment;
FIG. 6 is a schematic exploded view of a pallet of a tooling assembly of the test mechanism of an embodiment;
FIG. 7 is a perspective view of an upper test assembly of a test station of the test mechanism of the embodiment;
FIG. 8 is a perspective view of another angle of the upper test assembly of the test station of the test mechanism of the embodiment;
FIG. 9 is an exploded view of the upper test component of the test station of the test mechanism of the embodiment;
FIG. 10 is a schematic perspective view of an upper fixed block of a test upper assembly of a test station of the test mechanism of the embodiment;
FIG. 11 is a perspective view illustrating a test state of a test station of the test mechanism according to the embodiment;
FIG. 12 is a schematic front view of a test state of a test station of the test mechanism of the embodiment;
FIG. 13 is a schematic cross-sectional view A-A of FIG. 12;
FIG. 14 is an enlarged schematic view of region B of FIG. 13;
FIG. 15 is a schematic right-side view of a test state of a test station of the test mechanism of the embodiment;
FIG. 16 is a schematic cross-sectional view of C-C of FIG. 15;
FIG. 17 is an enlarged schematic view of region D of FIG. 16;
FIG. 18 is a schematic front view of a testing mechanism according to an embodiment;
FIG. 19 is a schematic top view of the test mechanism of the embodiment;
FIG. 20 is a schematic perspective view of the testing mechanism of the embodiment at a blanking station;
FIG. 21 is a schematic perspective view of the testing mechanism of the embodiment at another angle at the blanking station;
FIG. 22 is a perspective view of a jacking positioning mechanism of the testing mechanism of the embodiment;
FIG. 23 is a schematic perspective view of the testing mechanism of the embodiment at a full charge detection station;
FIG. 24 is a schematic perspective view of another angle of the testing mechanism of the embodiment at the full charge detection station;
FIG. 25 is a schematic perspective view of the testing mechanism of the embodiment at a code spraying station;
FIG. 26 is a schematic perspective view of the testing mechanism of the embodiment at a code scanning station;
the automatic feeding and discharging device comprises a conveying line, a feeding conveying line, a discharging conveying line, a first lifting conveying mechanism, a second lifting conveying mechanism, a feeding conveying line, a second lifting conveying mechanism, a frame and a blocking mechanism, wherein the conveying line comprises 1-a conveying line, 101-a feeding conveying line, 102-a discharging conveying line, 103-a first lifting conveying mechanism, 104-a returning conveying line, 105-a second lifting conveying mechanism, 106-a rack and 107-a blocking mechanism; 2-a tooling assembly, 201-a carrier plate, 202-a carrier block, 203-a positioning plate, 204-a first sealing ring, 205-a second sealing ring, 2011-a carrier plate body, 2012-a carrier plate positioning hole, 2013-a carrier plate air hole, 2021-a carrier block body, 2022-a positioning plate caulking groove, 2023-a test groove, 2024-a carrier block air hole, 2025-a first sealing ring groove, 2031-a positioning plate body, 2032-a capacitor core mounting hole, 2033-a mounting block; 3-test station, 301-test installation bottom plate, 302-test installation top plate, 303-press plate, 304-support plate, 305-test upper assembly, 306-translation supporting cushion block, 307-test pressing-down mechanism, 308-support plate lifting mechanism, 309-lateral translation driving mechanism, 310-multichannel digital bridge, 311-pressure controller, 3041-support plate body, 3042-first guide positioning pin, 3043-support plate air hole, 3044-support plate air distribution hole, 3045-second sealing ring groove, 3046-third sealing ring, 3047-support plate cushion block, 3051-upper fixing block, 3052-capacitor core pressing block, 3053-upper cushion block, 3054-probe assembly, 3055-probe fixing seat, 30511-probe fixing seat installation port, 30512-pressing block accommodating groove, 30521-a pressure block probe hole, 30531-a probe component accommodating groove, 30541-a lead-out circuit board, 30542-a probe, 30543-a multi-PIN connector and 30551-a fixed seat probe hole; 4-a capacitive core; 5-a blanking station, 501-a horizontal moving module, 502-a blanking lifting module and 503-a vacuum suction manipulator; 6-jacking positioning mechanism, 601-jacking mounting plate, 602-jacking driving piece, 603-jacking plate and 6031-second guide positioning pin; 7-full material detection station, 701-full material detection travel switch and 702-full material detection lifting mechanism; 8-spraying a code station, 801-spraying a nozzle, and 802-spraying a code linear module; 9-scanning a code station, 901-scanning a code gun and 902-scanning a code mounting rack.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1 to 26, the present embodiment provides a core testing mechanism for a ceramic capacitive pressure sensor, including a conveying line 1, a tooling assembly 2 conveyed along the conveying line 1, and a testing station 3 disposed on the conveying line 1; the tool assembly 2 comprises a lower test assembly; the top side of the lower testing component is provided with a plurality of testing positions for correspondingly loading the capacitor core 4; the test station 3 comprises a pallet 304 and a platen 303; the supporting plate 304 is used for jacking the tool assembly 2, correspondingly providing pressure gas for a plurality of test positions of the assembly under test, and further providing test pressure for the capacitor core 4; a test upper component 305 is mounted on the bottom side of the pressure plate 303; the test upper assembly 305 includes a probe assembly 3054, the test upper assembly 305 is configured to be pressed against a test site by a pressing force of the pressing plate 303, and the probe assembly 3054 is connected to a lead contact of the capacitive core 4 to feed back a corresponding capacitance value of the capacitive core 4 under the test pressure.
Referring to fig. 2 again, the test station 3 further includes a test installation bottom plate 301, and a test installation top plate 302 installed above the test installation bottom plate 301; the test installation bottom plate 301 is provided with a supporting plate lifting mechanism 308 for driving a supporting plate to lift; the test mounting top plate 302 is provided with a test pressing mechanism 307 for driving the pressing plate 303 to press downwards; the conveying line 1 penetrates between the testing installation bottom plate 301 and the testing installation top plate 302; the supporting plate 304 is used for jacking up when the tool assembly 2 is conveyed from the conveying line 1 to the testing station 3, so that the tool assembly 2 is separated from the conveying line 1.
Referring again to fig. 2, 11, 12 and 15, the testing station 3 further includes a translational shoe 306 and a lateral translation drive mechanism 309 for driving the translational shoe 306; the translational support cushion block 306 is used for driving the support plate 304 to move to the bottom side of the support plate 304 through the lateral translational driving mechanism 309 when the support plate 304 jacks up the tooling assembly 2, so that the support plate 304 bears pressure when the pressure plate 303 presses down. In order to make the structure compact and facilitate installation, a pallet spacer 3047 is further disposed on the bottom side of the pallet 304, when the pallet 304 is not jacked up, the translational support spacer 306 is located between the pallet 304 and the test installation base plate 301, and when the pallet 304 is jacked up, the translational support spacer 306 is translated between the pallet spacer 3047 and the test installation base plate 301.
Referring to fig. 3 to 6 again, the tooling assembly 2 further includes a carrier plate 201, and the lower test assembly mounted on the carrier plate 201; the carrier 201 comprises a carrier body 2011, and the assembly under test comprises a carrier block 202 fixed on the carrier body 2011 and a positioning plate 203 for loading a capacitor core; the carrier block 202 comprises a carrier block body 2021, and a positioning plate caulking groove 2022 is formed in the top surface of the carrier block body 2021; a plurality of test slots 2023 are distributed on the bottom surface of the positioning plate embedding groove 2022; the positioning plate 203 comprises a positioning plate body 2031, and a capacitor core body mounting hole 2032 is formed in the positioning plate body 2031 at a position corresponding to the test slot 2023; the capacitor core mounting hole 2032 is embedded with a mounting block 2033; the capacitor core 4 is mounted in the mounting block 2033; the carrier block body 2021 is also provided with a carrier block air hole 2024; the carrier plate body 2011 is also provided with carrier plate air holes 2013; one end of the carrier block air hole 2024 is communicated with the carrier plate air hole 2013, and the other end of the carrier block air hole is communicated with the corresponding test slot 2023; the positioning plate body 2031 is placed in the positioning plate embedding groove 2022 of the carrying block 202, the capacitive core 4 corresponds to the test groove 2023, and the test groove 2023 forms the test position; the pallet 304 includes a pallet body 3041; the support plate body 3041 is provided with support plate air holes 3043 and support plate air distribution holes 3044 communicated with the support plate air holes 3043 and corresponding to the support plate air holes 2013; the support plate air holes 3043 are used for receiving high-pressure air, so as to provide the high-pressure air for the test slot 2023. Specifically, as shown in fig. 18, the test station 3 further includes a pressure controller 311, an air inlet end of the pressure controller 311 is connected to a high-pressure air supply for supplying air, and an output end of the pressure controller 311 is communicated with the supporting plate air hole 3043; the pressure controller 311 is configured to control the pressure of the air introduced into the test slot 2023 and applied to the capacitive core 4. In order to enable the supporting plate gas distributing hole 3044 to be correspondingly communicated with the supporting plate gas hole 2013 on the supporting plate body 2011 of the tooling assembly 2 when the supporting plate 304 jacks up the tooling assembly 2, the supporting plate body 2011 is provided with a supporting plate positioning hole 2012; the carrier body 3041 is provided with a first guide positioning pin 3042 at a position corresponding to the carrier positioning hole 2012. In addition, in order to ensure that no air leakage occurs at the joint of the air holes, the carrier plate body 2011 and the carrier block body 2021 are provided with a first sealing ring 204 at the joint of the air holes, a second sealing ring 205 is arranged in the test slot 2023, and a third sealing ring 3046 is arranged at the joint of the carrier plate body 3041 and the carrier plate body 2011 at the joint of the air holes; in order to facilitate the installation of the sealing ring, a first sealing ring groove 2025 is formed in the bottom surface of the carrier block body 2021 near the air hole; the first seal ring 204 is mounted in the first seal ring groove 2025; a second sealing ring groove 3045 is formed in the top surface of the supporting plate body 3041 near the air hole, and a third sealing ring 3046 is installed in the second sealing ring groove 3045; the carrier block body 2021 is fixedly installed on the carrier plate body 2011, and after the carrier block body 2021 is installed, the first sealing ring is in a pressed deformation state, so that the carrier block air hole 2024 and the carrier plate air hole 2013 are in sealed connection; by the pressing of the pressing plate 303 and the support of the supporting plate 304 (the support of the translational supporting cushion block 306), the capacitor core presses the second sealing ring downwards to deform the capacitor core, and the third sealing ring 3046 deforms under pressure, so that a pressure cavity without leakage is formed between the test slot 2023 and the capacitor core, and the sealing connection between the supporting plate air holes 2013 and the supporting plate air distribution holes is also realized, which can be specifically shown in fig. 14 and 17; the sealing ring can be an O-shaped sealing ring.
In the ceramic capacitive pressure sensor core body testing mechanism of the embodiment, the positioning plate body 2031 is a metal plate, so that the capacitive core body is prevented from being interfered by an external electric field in the testing process, and the testing accuracy is improved.
Referring again to fig. 7-10, the probe assembly 3054 includes probes 30542 corresponding to the leads of the capacitive core 4; the upper test assembly 305 further comprises an upper fixed block 3051 fixedly mounted with the pressure plate 303, a capacitor core pressing block 3052 mounted on the bottom surface of the fixed block 3051 and a probe fixing seat 3055 mounted on the top side of the fixed block 3051; a fixing seat probe hole 30551 corresponding to the probe 30542 is formed in the probe fixing seat 3055; a pressing block probe hole 30521 communicated with the fixed seat probe hole 30551 is formed in the capacitor core pressing block 3052; the bottom end of the probe 30542 of the probe assembly 3054 passes through the fixed seat probe hole 30551 and then is positioned in the pressing block probe hole 30521; as shown in fig. 14, the capacitor core pressing block 3052 is used to press down with the upper fixing block 3051 under the pressing action of the pressing plate 303, the capacitor core pressing block 3052 acts on the capacitor core 4, and the pressing block probe hole 30521 of the capacitor core pressing block 3052 is sleeved on the lead wire of the capacitor core 4, so that the lead wire of the capacitor core 4 is in contact with the probe 30542 in the pressing block probe hole 30521. Specifically, a probe fixing seat mounting port 30511 is formed in the upper fixing block 3051 at a position corresponding to the probe fixing seat 3055; the bottom end of the probe fixing seat 3055 is arranged in the probe fixing seat mounting hole 30511 in a penetrating manner; a pressing block accommodating groove 30512 is formed in the bottom surface of the upper fixing block 3051 and corresponds to the position of the capacitor core pressing block 3052; the capacitor core compact 3052 is installed in the compact accommodating groove 30512.
In the core body testing mechanism of the ceramic capacitive pressure sensor, the probe is a telescopic current-voltage probe made of beryllium copper or brass gold plating, so that the accuracy of a capacity value test is ensured
Referring again to fig. 9, the probe assembly 3054 further includes an exit board 30541 coupled to probe 30542, a multi-PIN connector 30543 coupled to exit board 30541; an upper cushion block 3053 is also arranged between the upper fixing block 3051 and the pressing plate 303; the upper pad 3053 is provided with a probe assembly accommodating groove 30531, and the outgoing circuit board 30541 and the multi-PIN connector 30543 are mounted in the probe assembly accommodating groove 30531. Specifically, as shown in fig. 18, the testing station 3 further comprises a multi-channel digital bridge 310, wherein the multi-channel digital bridge 310 is connected with the multi-PIN connector 30543 and is used for simultaneously testing the capacity values of a plurality of capacitive cores.
Referring to fig. 18 and 19 again, the testing mechanism further comprises a code spraying station 8 and a code sweeping station 9 which are arranged on the conveying line 1 and located on the feeding side of the testing station 3; the code spraying station 8 is used for spraying codes on the capacitor core 4 conveyed to the tooling assembly 2 at the station; and the code scanning station 9 is used for scanning the code of the capacitor core 4 which is conveyed to the tool assembly 2 at the station and is sprayed with the code. After sweeping the sign indicating number, frock subassembly 2 takes electric capacity core 4 to get into test station 3 and tests, with the design of transfer chain, can make electric capacity core from spouting the sign indicating number to sweep the sign indicating number and test again for a continuous accurate action, guarantees the sign indicating number and test data's accurate corresponding.
Referring to fig. 25 again, the code spraying station 8 includes a code spraying linear module 802 installed on the conveying line 1 and a spray head 801 installed at a moving end of the code spraying linear module 802; the code spraying linear module 802 is used for driving the spray head 801 to move along the length direction of the conveying line 1; the code spraying station 8 further comprises a jacking positioning mechanism 6 arranged below the conveying line 1; the jacking positioning mechanism 6 is used for jacking when the tool assembly 2 is conveyed to the code spraying station 8 from the conveying line 1, so that the tool assembly 2 is separated from the conveying line 1; the spray head 801 is used for sequentially spraying codes on the capacitor core 4 on the tooling assembly 2 under the driving of the code spraying linear module 802; referring to fig. 22 again, the jacking positioning mechanism 6 includes a jacking mounting plate 601 mounted on the conveying line 1, a jacking driving member 602 mounted on the jacking mounting plate 601, and a jacking plate 603 mounted on a moving end of the jacking driving member 602; the lifting plate 603 is further provided with a second guiding positioning pin 6031 for matching with a carrier positioning hole 2012 of the carrier 201. Referring again to fig. 26, the code scanning station 9 includes a code scanning mounting rack 902 mounted on the conveying line 1 and a code scanning gun 901 mounted on the code scanning mounting rack 902; the code scanning gun 901 is used for scanning codes of each capacitor core 4 flowing through the code scanning station 9 in sequence.
Referring again to fig. 18, 19, 23 and 24, the testing mechanism further comprises a full detection station 7 arranged at the feed side of the conveyor line 1; the full material detection station 7 comprises a full material detection lifting mechanism 702 arranged above the conveying line 1 and a full material detection travel switch 701 fixed at the moving end of the full material detection lifting mechanism 702; the full material detection station 7 is used for detecting whether the capacitor core bodies on the tool assembly 2 conveyed to the station are full or not. Specifically, when the tooling assembly 2 is conveyed to the full charge detection station 7, the full charge detection travel switches 701 correspond to the regions of the tooling assembly 2 where the plurality of capacitor cores 4 are located one by one, the full charge detection lifting mechanism 702 drives the full charge detection travel switches 701 to press down, and when each full charge detection travel switch 701 is turned on, the capacitor cores 4 are considered to be fully placed.
Referring again to fig. 18, 19, 20 and 21, the conveyor line 1 includes a feeding conveyor line 101, a returning conveyor line 104, a first lifting conveyor mechanism 103 and a second lifting conveyor mechanism 105; the first lifting conveying mechanism 103 is used for connecting the discharge end of the feeding conveying line 101 and the feed end of the return conveying line 104; the second lifting conveying mechanism 105 is used for connecting the feeding end of the feeding conveying line 101 and the discharging end of the returning conveying line 104; the tail end of the feeding conveying line 101 is also provided with a blanking station 5; the conveying line 1 is also provided with a blanking conveying line 102 at the blanking station 5; the blanking station 5 comprises a horizontal moving module 501 arranged on the conveying line 1, a blanking lifting module 502 arranged at the moving end of the horizontal moving module 501, and a vacuum suction manipulator 503 arranged on the blanking lifting module 502; the vacuum suction manipulator 503 is used for transferring the capacitor core on the tooling assembly 2 conveyed to the station from the feeding conveying line 101 to the discharging conveying line 102 under the driving of the horizontal moving module 501 and the discharging lifting module 502; the blanking station 5 also comprises a jacking positioning mechanism 6 arranged below the conveying line 1; the jacking positioning mechanism 6 is used for jacking when the tool assembly 2 is conveyed to the blanking station 5 from the conveying line 1, so that the tool assembly 2 is separated from the conveying line 1. The jacking positioning mechanism 6 at the blanking station 5 has the same structure as that of the code spraying station 8.
The core body testing mechanism of the ceramic capacitive pressure sensor in the embodiment further comprises a frame 106, and the corresponding conveying lines and the corresponding stations are fixedly mounted on the frame 106.
The ceramic capacitor type pressure sensor core body testing mechanism further comprises a blocking mechanism 107 at each station, and is used for blocking the tool assembly 2, so that the tool assembly 2 is positioned at the station, the feeding conveying line and the returning conveying line adopt double-speed chain conveying lines, and the discharging conveying line adopts a belt type conveying line.
The ceramic capacitive pressure sensor core body testing mechanism further comprises a main control electric cabinet; the main control module comprises an industrial personal computer, a touch screen, a control switch and the like, and in-place sensors are arranged at all stations; the corresponding control mechanism can be selected according to actual requirements, and is not described in detail here.
The ceramic capacitive pressure sensor core body testing mechanism of the embodiment comprises the following action processes: after the positioning plate is arranged in the capacitor core, the positioning plate is placed in a positioning plate caulking groove on a carrying block of the tooling assembly, the tooling assembly loaded with the capacitor core flows along with a feeding conveying line and is stopped by a blocking mechanism at a full charge detection station, meanwhile, after an in-place sensor at the full charge detection station senses the inflow of the tooling assembly, a full charge detection lifting mechanism drives full charge detection travel switches to press down, the full charge detection travel switches correspond to the positions of the capacitor cores one by one, and when each travel switch is switched on, the tooling assembly is considered to be filled with the capacitor core; then, the tool assembly is released by the blocking mechanism at the full material detection station, the tool assembly is continuously conveyed by the feeding conveying line until the tool assembly is stopped by the blocking mechanism at the code spraying station, meanwhile, after the in-place sensor at the code spraying station senses the inflow of the tool assembly, the jacking positioning mechanism is started, the jacking plate rises, the second guide positioning pin of the jacking plate is inserted into the support plate positioning hole of the tool assembly, the tool assembly is jacked up under the action of the jacking plate to be separated from the feeding conveying line, and meanwhile, the positioning is completed under the action of the second guide positioning pin; after the tool assembly is jacked in place, the spray head moves under the driving of the code spraying linear module to sequentially spray batch serial numbers on the capacitor core, after code spraying is finished, the spray head resets, the jacking plate descends, the tool assembly is placed on the feeding conveying line again, then the blocking mechanism at the code spraying station releases the tool assembly, the tool assembly is continuously conveyed by the feeding conveying line until the tool assembly is blocked by the blocking mechanism at the code scanning station to stop, after no tool assembly exists at a subsequent testing station, the blocking mechanism at the code scanning station releases the tool assembly, meanwhile, when the tool assembly flows through the code scanning gun, the code scanning gun scans the serial numbers and transmits the serial numbers to the industrial personal computer to be sequentially recorded and stored, the tool assembly is continuously conveyed by the feeding conveying line until the tool assembly is blocked by the blocking mechanism at the testing station to stop, and simultaneously, the in-place sensor at the testing station senses the inflow of the tool assembly, the method comprises the following steps that a supporting plate lifting mechanism is started, a supporting plate rises, a first guide positioning pin of the supporting plate is inserted into a supporting plate positioning hole of a tooling assembly, the tooling assembly is jacked up under the action of the supporting plate to be separated from a feeding conveying line, and positioning is completed under the action of the first guide positioning pin; meanwhile, the lead of the capacitor core is also contacted with the probe; then, the pressure controller is communicated with a high-pressure air source, pressure air is injected into the test cavity through the supporting plate main air hole, the supporting plate air distribution holes, the supporting plate air holes and the carrying block air holes, the multichannel digital bridge measures and collects the capacity value of the capacitor core by utilizing a probe, the capacity values of the capacitor core under each pressure point are collected by injecting air with different pressures, and the industrial personal computer reads the collected capacity values and stores the capacity values in a one-to-one correspondence mode according to the previously stored serial numbers; after the test is finished, the pressing plate rises, the lateral translation supporting cushion block retracts, the supporting plate descends, the tool assembly is placed on the feeding conveying line again, the blocking mechanism at the test station releases the tool assembly, the tool assembly is conveyed continuously by the feeding conveying line until the tool assembly is blocked by the blocking cylinder at the blanking station, meanwhile, the in-place sensor at the blanking station senses the inflow of the tool assembly, the jacking positioning mechanism at the blanking station is started, the jacking plate rises, the second guide positioning pin of the jacking plate is inserted into the supporting plate positioning hole of the tool assembly, the tool assembly is jacked up under the action of the jacking plate to be separated from the feeding conveying line, the vacuum suction manipulator is driven by the horizontal moving module and the blanking lifting module to suck out the capacitor core and place the capacitor core into the plastic suction box on the blanking conveying line, when the capacitor core is completely taken out, the jacking plate descends, the tool assembly is placed on the feeding conveying line again, the blocking mechanism at the blanking station releases the tool assembly, the tool assembly is conveyed to the first lifting conveying mechanism by the feeding conveying line, the first lifting conveying mechanism conveys the tool assembly to the feed-back conveying line, the second lifting conveying mechanism conveys the tool assembly without the capacitor core to the initial end of the feeding conveying line again, and the tool assembly without the capacitor core is stopped at the initial end to wait for loading the capacitor core by the blocking of the blocking mechanism at the initial end of the feeding conveying line, and then enters the next cycle; when the plastic suction boxes of the blanking conveying line are filled with the capacitor cores, the blanking conveying line stops after conveying for a specified distance, and the next plastic suction box is waited to be filled; the material loading transfer chain and the unloading transfer chain of this embodiment all utilize stop mechanism, layer board, jacking board etc. to realize the stop of frock subassembly for lasting the transport.
In the core body testing mechanism of the ceramic capacitive pressure sensor, the lower testing component is directly designed on the tooling component, pressure gas is provided for the lower testing component through the design of the supporting plate, and meanwhile, the pressing plate is utilized to drive the upper testing component to press down, so that the probe is contacted with the lead of the capacitor core body, and further the measurement of the capacitance value under the pressure condition is realized; in addition, the pressure plate drives the pressure of the upper testing component to press down, so that the lower testing component and the supporting plate can seal the air hole under the action of the sealing ring, gas leakage is avoided, and the accuracy of the pressure value of the testing position is ensured; the design of the translation supporting cushion block can effectively support each component on the translation supporting cushion block; the design of the positioning plate of the tooling assembly is convenient for fixing the capacitor core, and meanwhile, the influence of an external electric field on the capacity value test of the capacitor core can be reduced due to the metal material of the positioning plate; the capacitor cores are conveyed in sequence by adopting a mode that a code spraying station, a code scanning station and a testing station are sequentially arranged on the same conveying line, so that one-to-one correspondence between the serial codes and the test data is ensured; the conveying line carries the frock subassembly circulation, improves conveying efficiency.
According to the ceramic capacitive pressure sensor core testing mechanism, assembly line type detection is adopted, and testing efficiency is improved; adopt multistation frock subassembly, once can test a plurality of electric capacity cores, satisfy the demand that detects in batches, test operation is automatic, further improves efficiency of software testing, satisfies the detection demand of mill's scale.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (10)
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| CN114544077B (en) | 2025-12-30 |
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