CN114755262A - Test system and test method for testing heat conduction capability of sample pieces in batch - Google Patents
Test system and test method for testing heat conduction capability of sample pieces in batch Download PDFInfo
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- CN114755262A CN114755262A CN202210670956.7A CN202210670956A CN114755262A CN 114755262 A CN114755262 A CN 114755262A CN 202210670956 A CN202210670956 A CN 202210670956A CN 114755262 A CN114755262 A CN 114755262A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
Abstract
The invention relates to a test system and a test method for testing heat conductivity of sample pieces in batches. Relates to the technical field of heat conduction performance testing. Adopt automatic unloader and inkjet belt cleaning device of going up to accelerate cooperation transport processing, reform transform the heat conductivility test equipment simultaneously, come once only to load a plurality of appearance pieces that wait to detect through porous position graphite printing opacity device to measure simultaneously, can promote the reliability and the efficiency of test greatly. The device comprises a thermal conductivity meter detection tray carrying device, a multi-hole laser thermal conductivity meter, a carrying and spraying station, a storage bin, an ultrasonic intelligent cleaning device, a part storage warehouse and a tray storage device. A photoelectric sensor is arranged on a test tray support in the multi-hole laser thermal conductivity meter, whether a tray is placed on the tray support or not is judged through the photoelectric sensor, and then the number of the sample pieces to be detected is judged to be consistent with the system setting.
Description
Technical Field
The invention relates to G01N: the technical field of material heat conductivity test, in particular to a test system and a test method for testing the heat conductivity of sample pieces in batches.
Background
In the 5G era, under the development trend of high performance and miniaturization of equipment, the heat generated by the unit volume of electronic equipment continuously rises, so that the heat dissipation requirement is continuously upgraded and increased, and the industrial development of heat dissipation material devices is promoted. Along with the continuous production and development of novel heat dissipation materials, the requirement of material heat conductivity test is increased, due to the fact that the sizes and the shapes of chips are different, the requirement of cross-size multi-form material heat conductivity test is a great technical problem, and a test system for testing the heat conductivity of sample pieces in batches can meet the requirement of the current heat conductivity test;
the traditional method for testing the heat conductivity of the sample piece is realized by a laser flash method, and the process comprises the following steps: firstly, manually spraying graphite on the surface of a sample piece to be tested, then placing a graphite support, covering a thermal conductivity meter, and then starting testing. After the test is finished, the cover is opened, the sample piece is taken out, and the test is finished after the residual graphite is cleaned manually. The whole process needs high manual participation, the time consumption of the processes of feeding, spraying, cleaning, blanking and the like outside the test is long, the equipment can only test a single sample piece at a time, the efficiency is low, and the laboratory test requirement can only be met.
Therefore, a more automatic, efficient and stable system for measuring the thermal conductivity of the sample is urgently needed. Through the automatic unloading of accomplishing the exemplar such as design exemplar transport mechanism, belt cleaning device, exemplar storehouse and go up unloading and washing, design new large capacity measurement structure and realize that a single surveys a plurality of exemplars. Therefore, the efficiency and the reliability of the sample piece test can be greatly improved, and the test efficiency is improved.
Disclosure of Invention
The invention aims to: the test system for testing the heat conductivity of the sample pieces in batch is provided, and the problems are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, a system for testing heat conductivity of sample pieces in batch is provided, which includes: the device comprises a test system platform, a stock bin arranged at one end above the test system platform, a plurality of self-adaptive positioning tools and a conveying and spraying station which are arranged in an array manner in the test system platform, wherein the conveying and spraying station is arranged at one side of the stock bin; the spraying end is located the cambered surface region, sets up test system platform is last, and is located the transport detection station of one side of transport spraying station, and it includes that the thermal conductivity meter detects tray handling device, sets up the thermal conductivity meter detects terminal tray anchor clamps of tray handling device and camera, sets up the tray storage device of thermal conductivity meter detection tray handling device one side, and sets up the multi-hole laser thermal conductivity meter of thermal conductivity meter detection tray handling device opposite side sets up the supersound intelligence belt cleaning device in the predetermined transport cambered surface region of thermal conductivity meter detection tray handling device, is located supersound intelligence belt cleaning device's one side, provides the part storehouse that the district was placed to the sample spare after the test was accomplished.
The sample piece to be detected sequentially passes through the visual servo conveying device to reach the spraying end, graphite with a preset flow is sprayed on the spraying end, the sample piece to be detected with the graphite attached is conveyed to the tray storage device through the thermal conductivity meter detection tray conveying device, and the heat conductivity of the sample piece to be detected is tested in a unified mode until the number of the sample piece to be detected reaches a preset number.
Through installing the feed bin, transport spraying station, the thermal conductivity appearance detects tray handling device, many caves laser thermal conductivity appearance, supersound intelligence belt cleaning device, part repository and tray storage device, it passes through the feed bin in proper order to wait to detect the sample, transport spraying station, tray storage device, many caves laser thermal conductivity appearance, test action is accomplished to supersound intelligence belt cleaning device and part repository, carry work through the transport end, can make the transport performance of waiting to detect the sample obtain guaranteeing better, carry the action in proper order, need not the manual work and operate, the structural performance of test is more nimble comprehensive, form a streamline nature test system, holistic practicality is higher.
According to an aspect of an embodiment of the present application, the multi-cavity laser thermal conductivity meter includes: the device comprises a large xenon lamp laser source, a graphite light-passing plate, a test tray support, a multi-hole laser thermal conductivity instrument protective cover and a plurality of infrared detectors, wherein the large xenon lamp laser source is arranged at the bottom of the thermal conductivity instrument and used for matching detection to form a spectrum;
A photoelectric sensor is arranged on a test tray support in the multi-hole laser thermal conductivity meter, whether a tray is placed on the tray support or not is judged through the photoelectric sensor, and whether the number of the sample pieces to be detected is consistent with the system setting or not is further judged.
Through being provided with large-scale xenon lamp laser source, graphite light-passing board, test tray support many caves laser thermal conductivity appearance protection casing and infrared detector, can wait to detect the action after waiting to detect to place and accomplish, can carry out the regulation of certain degree according to actual detection demand, holistic cooperation performance has obtained the better guarantee.
According to an aspect of an embodiment of the present application, the visual servo handling apparatus comprises: the visual servo carrying device comprises a sucker positioned on one side of the lower end of the visual servo carrying device, a visual camera positioned at the rear end of the sucker and used for acquiring the size and the pose of the sample piece to be detected;
the spraying end includes: the graphite intelligent spraying end is opposite to the rotating and carrying direction of the visual servo carrying device and used for carrying out sample placing and fixing, slides along the support according to a preset spraying requirement and is matched with the self-adaptive clamping tool to carry out spraying work.
Through installing the servo handling device of vision, can make the handling performance of treating the sample piece to be detected obtain better guarantee, be provided with self-adaptation clamping frock simultaneously, can make the spraying location performance of treating the sample piece to be detected obtain better guarantee, carry out spraying work through graphite intelligence spraying end, can make to treat the sample piece to be detected and can fix a position after carrying to self-adaptation clamping frock, carry out the spraying again, structural performance is simple more comprehensive.
According to an aspect of the embodiment of the present application, the bunker includes: the self-adaptive positioning tool is used for placing a sample piece to be detected and carrying out adaptive adjustment according to the size of the sample piece to be detected, the photoelectric switch embedded in the self-adaptive positioning tool, and the test system control switch which is arranged outside the storage bin and used for controlling the starting and the stopping of a detection program.
Through being provided with self-adaptation location frock in feed bin inside, can be better to waiting to detect the sample and fix a position, wait to detect the placing performance of sample and obtained better guarantee.
According to an aspect of the embodiments of the present application, the ultrasonic intelligent cleaning device comprises: supplementary handling device sets up in supplementary handling device one side, provides the washing pond in sample piece washing district, is formed in washing pond top, is used for providing the 2D slip table of slip workspace, with 2D slip table sliding connection, slip in-process wash the ultrasonic transducer of action, set up in wash the pond below, be used for providing the ultrasonic generator of the required energy of ultrasonic cleaning.
Through installing supplementary handling device, be provided with simultaneously and wash the pond, carry out the transport of appearance piece through handling device, get into and wash the inside action of wasing of pond, simultaneously through ultrasonic probe and supersonic generator, can make holistic washing performance obtain guaranteeing better, can provide the washing energy through supersonic generator, the practicality is higher.
According to an aspect of the embodiment of the application, the part storage library comprises a plurality of layers of sample storage areas, qualified products and unqualified products can be placed in a partition mode, detection data of the multi-hole laser thermal conductivity meter are matched, and a certain sample heat conduction parameter and a storage position in the part storage library are sent to the control system for checking.
Qualified products and unqualified products can be better distinguished, the classified placement performance is more comprehensive and perfect, and the practicability is higher.
According to an aspect of the embodiments of the present application, the multi-hole laser thermal conductivity meter can cover the measurement of various standard and special-shaped sample pieces from 2 × 2mm to 50 × 50 mm; the large xenon lamp light source at the bottom can heat all the placed sample pieces to be detected at one time.
In a second aspect, a method for batch testing thermal conductivity of sample pieces is provided, the method comprising the following steps:
s1, preparation step: an operator places all sample pieces to be detected on a sample piece self-adaptive positioning tool in a storage bin, clicks a control switch of a testing system, and the system determines the number of the sample pieces to be detected according to a photoelectric switch in the tool;
s2, conveyance step: the visual servo carrying device moves to the position above the first sample piece, and the size and the pose of the sample piece to be detected are determined after the sample piece to be detected is shot by the visual camera; carrying the sample to be detected to the next procedure through a sucking disc according to the determined size and pose of the sample to be detected;
S3, a graphite spraying process: the spraying end analyzes and determines the graphite spraying speed and spraying amount according to the size of the sample to be detected determined in S2, spraying of the two sides of the sample to be detected is completed in sequence, and the thermal conductivity meter detection tray carrying device absorbs and moves the sample to be detected to the next procedure after all graphite spraying is completed;
s4, a conveying and storing process: the thermal conductivity meter detection tray carrying device sucks and moves the sample piece to be detected to the tray storage device;
repeating S1-S3 until the number of samples to be detected reaches a preset number;
s5, detection procedure: the method comprises the following steps that a multi-hole laser thermal conductivity meter reads the size and the pose of a sample piece to be detected shot by a vision camera, a graphite light-passing plate with proper size is replaced, a large xenon laser source starts a temperature control system to heat the sample piece to be detected to an appointed temperature, an infrared detector detects the temperature above the sample piece to be detected and transmits the detected temperature to the thermal conductivity meter, the multi-hole laser thermal conductivity meter analyzes data to form a thermal conductivity test result, and after detection is finished, a thermal conductivity meter detection tray carrying device absorbs and moves the sample piece to the next process;
s6, a cleaning procedure: the ultrasonic intelligent cleaning device determines the ultrasonic frequency and the cleaning time according to the size of the current sample piece, after receiving a system starting signal, the ultrasonic probe reaches the position above the first sample piece to be cleaned, the ultrasonic generator works, and the cleaning is started until all the sample pieces and the trays in the cleaning pool are cleaned;
S7, warehousing: the auxiliary carrying device takes a picture through a camera to identify the sample piece, determines to obtain qualified products and unqualified products through the multi-hole laser thermal conductivity meter, carries the qualified products and the unqualified products to a warehousing workbench at the inner part of a part storage library through a cleaning pool respectively, and carries the sample piece to warehouse by the warehousing workbench until the warehousing operation of all the detected sample pieces is completed;
and S8, ending.
According to an aspect of this application embodiment, according to the automatic graphite light-passing board that changes of sample size that awaits measuring of the feedback of the terminal vision camera of visual servo handling device, if test tray support does not all place the tray in the laser thermal conductivity meter of many caves and current tray quantity is inconsistent with the sample quantity that needs to detect, laser thermal conductivity meter of many caves sends alarm signal to the system, if laser thermal conductivity meter of many caves accepts and comes from testing device and begins the detection signal, large-scale xenon lamp laser source opens temperature control system and heats to appointed temperature for the sample through the graphite light-passing board, infrared detector carries out temperature detection and will detect the temperature transmission to the thermal conductivity appearance above the sample, thermal conductivity appearance analytical data forms the heat conduction test result, the thermal conductivity appearance protection casing is opened, thermal conductivity appearance detection tray handling device carries all detection trays and wherein the sample by the thermal conductivity appearance in to supersound intelligence belt cleaning device washing pond.
Compared with the prior art, the invention has the beneficial effects that:
the automatic conveying and carrying mechanism is used for sorting and conveying the sample to be tested, and the ultrasonic graphite intelligent spraying and cleaning mechanism is used for completing preparation work and cleaning work of sample testing. The simultaneous measurement of a plurality of sample pieces is completed by designing a multi-hole laser thermal conductivity meter. The mode not only reduces the burden of workers, can ensure the stability of measurement, but also promotes the inspection efficiency of the sample piece.
Drawings
FIG. 1 is a perspective view of a test system of the present invention.
Fig. 2 is a schematic structural diagram of the ultrasonic intelligent cleaning device of the invention.
Fig. 3 is a schematic structural view of the multi-hole laser thermal conductivity meter of the present invention.
Fig. 4 is a schematic structural diagram of the tray storage device of the present invention.
Fig. 5 is a schematic structural diagram of a conveying and spraying station of the invention.
FIG. 6 is a schematic view of a parts storage library according to the present invention.
Fig. 7 is a schematic structural diagram of the storage bin of the present invention.
FIG. 8 is a flow chart of a method for batch testing of thermal conductivity of samples.
In the figure: the device comprises a thermal conductivity meter detection tray carrying device 1, a camera 1-a, a tray clamp 1-b, a multi-hole laser thermal conductivity meter 2, an infrared detector 2a, a graphite light-passing plate 2b, a test tray support 2c, a large xenon lamp laser source 2D, a multi-hole laser thermal conductivity meter protective cover 2e, a carrying and spraying station 3, a visual servo carrying device 3a, a sucker 3a-3, a visual camera 3a-4, a graphite nozzle 3a-5, a 2D camera 3a-6, a graphite intelligent spraying end 3b, a three-axis sliding table 3c, an adaptive clamping tool 3D, a force sensor 3D-1, a clamping tool clamping jaw 3D-2, an overturning limiting mechanism 3D-3, a bin 4, a test system control switch 4a, a photoelectric switch 4b, an adaptive positioning tool 4c, an ultrasonic intelligent cleaning device 5, an auxiliary carrying device 5a, The device comprises an ultrasonic probe 5b, a cleaning pool 5c, a 2D sliding table 5D, an ultrasonic generator 5e, a part storage library 6, a warehousing workbench 6a, a tray storage device 7, a tray frame 7a and a test system platform 8.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
The applicant believes that the conventional method for testing the heat conductivity of the sample piece is realized by a laser flash method, which comprises the following steps: firstly, manually spraying graphite on the surface of a sample piece to be tested, then placing a graphite support, covering a cover, and starting the test. And after the test is finished, opening the cover, taking out the sample piece, and cleaning. The whole process needs high manual participation, the process of loading, spraying, cleaning, blanking and the like outside the test consumes long time, the equipment can only test one sample piece at a time, the efficiency is very low, and the requirement of industrialized batch test is not met.
Therefore, the applicant designs a test system for testing the heat conductivity of sample pieces in batches, adopts an automatic feeding and discharging device and an ink-jet cleaning device to accelerate the beat, improves the heat conductivity test equipment, loads a plurality of sample pieces at one time through a porous graphite light-transmitting device, and simultaneously measures, so that the reliability and the efficiency of the test can be greatly improved.
As shown in fig. 1, the system for testing the heat conductivity of the sample pieces in batch comprises a thermal conductivity meter detection tray carrying device 1, a multi-hole laser thermal conductivity meter 2, a carrying and spraying station 3, a stock bin 4, an ultrasonic intelligent cleaning device 5, a part storage library 6 and a tray storage device 7. The bin 4 is used for storing sample pieces to be detected, the transporting and spraying station 3 is arranged above the test system platform 8, the transporting and spraying station 3 is arranged on one side of the bin 4 and can carry out automatic fossil ink spraying work on the sample pieces to be detected, the multi-hole laser thermal conductivity meter 2 is arranged on one side above the test system platform 8 and can simultaneously carry out heat conductivity test on a plurality of sample pieces to be detected, the thermal conductivity meter detection tray transporting device 1 is arranged in the center of the test system platform 8 and can transport the detection tray to the multi-hole laser thermal conductivity meter 2, the ultrasonic intelligent cleaning device 5 and the tray storage device 7, the ultrasonic intelligent cleaning device 5 is arranged above the test system platform 8 and can automatically calculate the ultrasonic frequency and the ultrasonic action time according to the size of the parts, the part storage library 6 is arranged on one side of the intelligent cleaning device 5 and can well store the detected parts, the tray storage device 7 is arranged on one side of the test system platform 8, the cleaned tray after ultrasonic cleaning can be temporarily stored.
The thermal conductivity meter detection tray carrying device 1 comprises a camera 1-a and a tray clamp 1-b.
Many caves laser thermal conductivity meter 2 installs in 8 top one sides of test system platform, contain large-scale xenon lamp laser source 2d, graphite light-passing board 2b, infrared detector 2a, test tray support 2c, large-scale xenon lamp laser source 2d is installed in 2 bottoms of thermal conductivity meter, graphite light-passing board 2b is installed in large-scale xenon lamp laser source 2d top, test tray support 2c installs and is the array distribution in graphite light-passing board 2b top, infrared detector 2a installs and is located 2 tops of many caves laser thermal conductivity meter in test tray support 2c top, thermal conductivity meter detection tray handling device 1 installs at 8 centers of test system platform, supersound intelligent cleaning device 5 installs in 8 tops of test system platform, part repository 6 installs in 5 one side of supersound intelligent cleaning device, tray storage device 7 installs in 8 opposite sides of test system platform.
In practical application, as shown in fig. 1 to 2, the intelligent ultrasonic cleaning device 5 includes an auxiliary conveying device 5a, an ultrasonic generator 5e, an ultrasonic probe 5b, a 2D slide table 5D, and a cleaning tank 5c, the auxiliary conveying device 5a is installed between the parts storage 6 and the cleaning tank 5c, the ultrasonic generator 5e can provide a pulse signal for the ultrasonic probe 5b, the ultrasonic probe 5b is located at the end of the 2D slide table 5D, the cleaning tank 5c is installed below the 2D slide table 5D, and an inorganic solvent is filled in the cleaning tank 5 c.
In practical application, as shown in fig. 1 and 3, the multi-hole laser thermal conductivity meter 2 is installed on one side above a test system platform 8, and includes a large xenon lamp laser source 2d, a graphite light-transmitting plate 2b, an infrared detector 2a, and a test tray support 2c, the large xenon lamp laser source 2d is installed at the bottom of the thermal conductivity meter 2, the graphite light-transmitting plate 2b is installed above the large xenon lamp laser source 2d, the test tray supports 2c are installed above the graphite light-transmitting plate 2b and distributed in an array, and the infrared detector 2a is located above the test tray support 2c and arranged at the top of a multi-hole laser thermal conductivity meter protective cover 2 e.
In practical applications of the test system according to the present invention, as shown in fig. 1 and 4, the tray storage device 7 includes a tray frame 7a, and the thermal conductivity meter test tray transfer device 1 can transfer and place the test tray cleaned in the cleaning tank 5c onto the tray frame 7 a.
In practical applications of the testing system of the present invention, as shown in fig. 1 and 5, the vision servo conveying device 3a comprises a vision camera 3a-4 and a suction cup 3a-3, and the end effector composed of the vision camera 3a-4 and the suction cup 3a-3 is installed at the predetermined conveying end of the vision servo conveying device 3 a.
The intelligent graphite spraying end 3b comprises graphite nozzles 3a-5 and 2D cameras 3a-6, the graphite nozzles 3a-5 can adjust the graphite spraying amount, and the 2D cameras 3a-6 are used for photographing and detecting the graphite spraying uniformity and integrity of the sample piece to be detected.
The self-adaptive clamping tool 3d comprises a force sensor 3d-1 and an overturning limiting mechanism 3d-3, the force sensor 3d-1 is installed on a clamping tool clamping jaw 3d-2 and used for detecting the clamping force of the tool, and the overturning limiting mechanism 3d-3 is installed on the outer side of the self-adaptive clamping tool 3d and used for overturning a sample piece to be detected clamped by the tool.
In practical applications, as shown in fig. 1 and 6, the part repository 6 includes a warehousing workbench 6a to form a multi-layer sample storage area, which can be used for placing qualified products and unqualified products in a partitioned manner, and sending a certain sample heat conduction parameter and a storage position in the part repository 6 to the control system for inspection and check in cooperation with detection data of the multi-hole laser thermal conductivity meter 2.
In practical application, as shown in fig. 1 and 7, the bin 4 includes a plurality of adaptive positioning tools 4c and a testing system control switch 4a disposed outside the bin 4, and a photoelectric switch 4b is disposed inside the adaptive positioning tools 4 c.
Based on the test system mentioned in the above embodiment, the embodiment further provides a test method for testing the heat conductivity of the sample pieces in batch, as shown in fig. 8, the steps are as follows:
s1, placing all the sample pieces to be detected on the sample piece self-adaptive positioning tool 4c in the bin 4 by an operator, clicking the control switch 4a of the test starting system, and determining the number of the sample pieces to be detected by the system according to the photoelectric switches 4b in the tool;
s2, the visual servo conveying device 3a in the conveying spraying station 3 moves to the position above the first sample piece to be detected, the visual camera 3a-4 shoots the sample piece to be detected to determine the size and the pose of the sample piece to be detected, the position of the sucker 3a-3 is automatically adjusted to ensure that the sample piece to be detected can be sucked, the visual servo conveying device 3a drives the sucker 3a-3 to suck the target sample piece and convey the target sample piece to the self-adaptive clamping tool 3d according to the pose of the sample piece identified by the visual camera 3a-4, whether the sample piece to be detected is successfully sucked or not can be judged through air pressure feedback of the sucker 3a-3, the self-adaptive clamping tool 3d adjusts the clamping range according to the size of the sample piece identified by the visual camera 3a-4 to successfully clamp the sample piece to be detected, the spraying end analyzes and determines the graphite spraying speed and the spraying amount according to the size of the sample piece, the three-axis sliding table 3c drives the graphite intelligent spraying end 3b to move to the position above the sample piece to start spraying, meanwhile, the graphite spraying effect is determined through the matching of photographing of the 2D camera 3a-6, the graphite nozzle 3a-5 starts to perform spraying action, after single-side spraying is completed, the self-adaptive clamping tool 3D is turned over, the graphite nozzle 3a-5 is matched with the 2D camera 3a-6 to complete spraying of the other side of the sample piece to be detected, and the sample piece to be detected is sucked and moved to the tray storage device 7 by the whole thermal conductivity meter detection tray carrying device 1.
And S3, opening the protective cover 2e of the multi-hole laser thermal conductivity meter, photographing the current tray storage device 7 by the camera 1-a at the tail end of the tray carrying device 1 by the thermal conductivity meter detection, and recognizing the pose, and then clamping the tray inside the tray storage device 7 by the tray clamp 1-b and putting the tray on the test tray support 2c in the multi-hole laser thermal conductivity meter 2.
And S4, repeating the steps S2-S3 until the multi-hole laser thermal conductivity meter 2 reaches the detection capacity or all the current sample pieces to be detected are placed into the thermal conductivity meter.
S5, closing the protective cover 2e of the multi-cavity laser thermal conductivity instrument, replacing the graphite light-passing board 2b according to the size of the sample fed back by the camera 1-a of the tray carrying device 1 detected by the thermal conductivity instrument, if the current tray supports 2c in the multi-cavity laser thermal conductivity instrument 2 are not completely provided with trays, and the current tray number is not consistent with the number of the sample to be detected, sending an alarm signal to the system by the multi-cavity laser thermal conductivity instrument 2 for waiting for subsequent processing, if the multi-cavity laser thermal conductivity instrument 2 receives a detection signal from the testing device, starting the temperature control system by the large xenon lamp laser source 2d, heating the sample to be detected to a specified temperature through the graphite light-passing board 2b, detecting the temperature above the sample to be detected by the infrared detector 2a and transmitting the detection temperature to the multi-cavity laser thermal conductivity instrument 2, analyzing data by the multi-cavity laser thermal conductivity instrument 2 to form a heat conduction test result, starting the protective cover 2e of the multi-cavity laser thermal conductivity instrument, the thermal conductivity meter detection tray carrying device 1 carries all detection trays and sample pieces thereof to a cleaning pool 5c of the ultrasonic intelligent cleaning device 5 from the inside of the multi-hole laser thermal conductivity meter 2.
S6, the ultrasonic intelligent cleaning device 5 determines the ultrasonic frequency and the cleaning time according to the size of the current sample piece, after receiving a system starting signal, the 2D sliding table 5D drives the ultrasonic probe 5b to be above the first sample piece to be cleaned, the ultrasonic generator 5e works, and the cleaning is started until all the sample pieces and the trays in the cleaning pool 5c are cleaned completely.
And S7, the auxiliary conveying device 5a takes a picture through a camera to identify the sample, the multi-hole laser thermal conductivity meter 2 determines that qualified products and unqualified products are obtained, the qualified products and the unqualified products are respectively conveyed to a warehousing workbench 6a in the part storage warehouse 6 through the cleaning pool 5c, and then the warehousing workbench 6a conveys the sample into a warehouse until the warehousing operation of all the detected samples is completed.
And S8, the thermal conductivity meter detects that the tray carrying device 1 moves above the cleaning pool 5c, the cleaned tray frame 7a is photographed and identified by the camera 1-a, then the trays are sequentially carried to the tray storage device 7, and the thermal conductivity detection process is finished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. Test system of batch test sample piece heat conductivility, its characterized in that includes:
a test system platform;
the stock bin is arranged at one end above the test system platform, and a plurality of self-adaptive positioning tools are arrayed in the stock bin;
the conveying and spraying station is arranged on one side of the storage bin and comprises a visual servo conveying device fixed on the test system platform and a spraying end which is fixed on the test system platform and is positioned on one side of the visual servo conveying device;
the visual servo conveying device conveys the sample to be detected in a preset cambered surface area; the spraying end is positioned in the arc surface area;
the carrying and detecting station is arranged on the test system platform and positioned on one side of the carrying and spraying station and comprises a thermal conductivity meter detecting tray carrying device, a tray clamp and a camera which are arranged at the tail end of the thermal conductivity meter detecting tray carrying device, a tray storage device arranged on one side of the thermal conductivity meter detecting tray carrying device and a multi-cavity laser thermal conductivity meter arranged on the other side of the thermal conductivity meter detecting tray carrying device;
the sample piece to be detected sequentially passes through the visual servo conveying device to reach the spraying end, graphite with a preset flow is sprayed on the spraying end, the sample piece to be detected with the graphite attached is conveyed to the tray storage device through the thermal conductivity meter detection tray conveying device, and the heat conductivity of the sample piece to be detected is tested in a unified mode until the number of the sample piece to be detected reaches a preset number.
2. The test system of claim 1, wherein: further comprising:
the ultrasonic intelligent cleaning device is arranged in a preset carrying arc region of the thermal conductivity meter detection tray carrying device;
and the part storage library is positioned on one side of the ultrasonic intelligent cleaning device and provides a sample placing area after the test is finished.
3. The test system of claim 1, wherein: the multi-hole laser thermal conductivity meter comprises:
the large xenon lamp laser source is arranged at the bottom of the thermal conductivity meter;
the graphite light-transmitting plate is arranged above the large xenon lamp laser source and clamped with the multi-hole laser thermal conductivity meter;
the test tray bracket is arranged on the graphite light-transmitting plate, and the placing area is provided with a plurality of placing groove bodies in a rectangular array;
the protective cover of the multi-cavity laser thermal conductivity meter is rotationally connected with the multi-cavity laser thermal conductivity meter and is matched with the multi-cavity laser thermal conductivity meter to form omnibearing detection;
the infrared detectors are fixed with the multi-hole laser thermal conductivity meter protective cover and are provided with a plurality of infrared detectors for detection;
a photoelectric sensor is arranged on a test tray support in the multi-hole laser thermal conductivity meter, whether a tray is placed on the tray support or not is judged through the photoelectric sensor, and whether the number of the sample pieces to be detected is consistent with the system setting or not is further judged.
4. The test system of claim 1, wherein: the visual servo handling device comprises:
the sucking disc is positioned on one side of the lower end of the visual servo carrying device;
and the vision camera is positioned at the rear end of the sucker and used for acquiring the size and the pose of the sample piece to be detected.
5. The test system of claim 1, wherein: the feed bin includes:
the self-adaptive positioning tool is used for placing a sample to be detected and carrying out adaptive adjustment according to the size of the sample to be detected;
the photoelectric switch is embedded into the self-adaptive positioning tool;
and the test system control switch is arranged outside the storage bin and used for controlling the starting and the termination of the detection program.
6. The test system of claim 2, wherein: the supersound intelligence belt cleaning device includes:
an auxiliary handling device;
the cleaning pool is arranged on one side of the auxiliary carrying device and provides a sample piece cleaning area;
the 2D sliding table is formed above the cleaning pool and used for providing a sliding working area;
the ultrasonic probe is connected with the 2D sliding table in a sliding mode and performs detection action in the sliding process;
and the ultrasonic generator is arranged below the cleaning pool.
7. The test system of claim 1, wherein: the spray tip includes:
The self-adaptive clamping tool is opposite to the rotating and conveying direction of the visual servo conveying device and is used for placing and fixing the sample piece to be detected;
the graphite intelligent spraying end slides along the support according to a preset spraying requirement and is matched with the self-adaptive clamping tool to perform spraying work.
8. The test system of claim 2, wherein: the part storage library is provided with a plurality of layers of warehousing workbenches, a plurality of sample storage areas are formed, qualified products and unqualified products can be placed in a partition mode, detection data of the multi-hole laser thermal conductivity meter are matched, and certain sample heat conduction parameters and storage positions in the part storage library are sent to the control system for checking.
9. The method for testing the heat conduction capacity of the sample pieces in batches is realized on the basis of the test system of any one of claims 1 to 8, and is characterized by comprising the following steps of:
s1, preliminary step: an operator places all sample pieces to be detected on a sample piece self-adaptive positioning tool in a storage bin, clicks a control switch of a testing system, and the system determines the number of the sample pieces to be detected according to a photoelectric switch in the tool;
s2, a conveying process: the visual servo carrying device moves to the position above the first sample piece to be detected, and the size and the pose of the sample piece to be detected are determined after the sample piece to be detected is shot by the visual camera; carrying the sample piece to be detected to the next procedure through a sucking disc according to the determined size and the pose of the sample piece to be detected;
S3, a graphite spraying process: the spraying end analyzes and determines the graphite spraying speed and spraying amount according to the size of the sample to be detected determined in S2, spraying of the two sides of the sample to be detected is completed in sequence, and the thermal conductivity meter detection tray carrying device absorbs and moves the sample to be detected to the next procedure after all graphite spraying is completed;
s4, a conveying and storing process: the thermal conductivity meter detection tray carrying device sucks and moves the sample piece to be detected to the tray storage device;
repeating S1-S3 until the number of samples to be detected reaches a preset number;
s5, detection procedure: the method comprises the following steps that a multi-hole laser thermal conductivity meter reads the size and the pose of a sample piece to be detected shot by a vision camera, a graphite light-passing plate with preset size is replaced, a large xenon laser source starts a temperature control system to heat the sample piece to be detected to an appointed temperature, an infrared detector detects the temperature above the sample piece to be detected and transmits the detected temperature to the thermal conductivity meter, the multi-hole laser thermal conductivity meter analyzes data to form a thermal conductivity test result, and after detection is finished, a thermal conductivity meter detection tray carrying device absorbs and moves the sample piece to the next process;
s6, a cleaning procedure: the ultrasonic intelligent cleaning device determines the ultrasonic frequency and the cleaning time according to the size of the current sample piece, after receiving a system starting signal, the ultrasonic probe reaches the position above the first sample piece to be cleaned, the ultrasonic generator works, and the cleaning is started until all the sample pieces and the trays in the cleaning pool are cleaned;
S7, warehousing: the auxiliary carrying device takes a picture through a camera to identify the sample piece, determines to obtain qualified products and unqualified products through the multi-hole laser thermal conductivity meter, carries the qualified products and the unqualified products to a warehousing workbench at the inner part of a part storage library through a cleaning pool respectively, and carries the sample piece to warehouse by the warehousing workbench until the warehousing operation of all the detected sample pieces is completed;
and S8, ending.
10. The method for testing the thermal conductivity of the sample pieces in batch according to claim 9, wherein the process of detecting the process in S5 further comprises: the method comprises the steps that graphite light-passing plates are changed according to the size of a sample piece fed back by a vision camera at the tail end of a vision servo carrying device, if trays are not placed on a test tray support in a current multi-cavity laser thermal conductivity meter, the number of the current trays is inconsistent with the number of the sample pieces to be detected, the multi-cavity laser thermal conductivity meter sends an alarm signal to a system, if the multi-cavity laser thermal conductivity meter receives a detection signal from a testing device, a large xenon lamp laser source starts a temperature control system to heat the sample pieces to an appointed temperature through the graphite light-passing plates, an infrared detector detects the temperature above the sample pieces and transmits the detected temperature to a thermal conductivity meter, the thermal conductivity meter analyzes data to form a thermal conductivity test result, a thermal conductivity meter protective cover is opened, and the thermal conductivity meter detection tray carrying device carries all detection trays and the sample pieces to an ultrasonic intelligent cleaning device cleaning pool through the thermal conductivity meter.
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