CN202614363U - Automatic tester for testing four-corner error of electronic balance based on machine vision - Google Patents
Automatic tester for testing four-corner error of electronic balance based on machine vision Download PDFInfo
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- CN202614363U CN202614363U CN2012202290912U CN201220229091U CN202614363U CN 202614363 U CN202614363 U CN 202614363U CN 2012202290912 U CN2012202290912 U CN 2012202290912U CN 201220229091 U CN201220229091 U CN 201220229091U CN 202614363 U CN202614363 U CN 202614363U
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Abstract
The utility model discloses an automatic tester for testing four-corner error of an electronic balance based on machine vision. The automatic tester comprises a frame, an electronic balance to be tested is placed on a working table of the frame, a weight set is placed on one side of the working table, one side above the electronic balance is provided with a camera fixed on the frame, the upper end of the frame is provided with a three-axis motion control system, the frame is further provided with a control system which is electrically connected with the camera and the three-axis motion control system separately, and the three-axis motion control system is provided with a movable embedded hook which is used to select and place proper weights in different positions of the electronic balance. The automatic tester for testing four-corner error of an electronic balance based on machine vision in the utility model is capable of automatically and conveniently testing four-corner error of the electronic balance, has the advantages of simple structure, automatic operation, less manual intervention, automatic electronic balance model identification, automatic testing result error analysis and the like, and can be used to reduce the labor intensity, improve the work efficiency and realize automatic testing.
Description
Technical field
The utility model relates to auto testing instrument, relates in particular to the electronic balance position error auto testing instrument based on machine vision.
Background technology
The weighing object is placed on the diverse location on the electronic balance pan of a steelyard, and owing to reasons such as LOAD CELLS self-characteristic and package assemblies, its measurement result allows certain deviation, but should be roughly within a scope, and this value is called uneven loading error.When actual uneven loading error detects, normally on the center of pan of a steelyard and four angles, apply satisfactory counterweight, detect the deviation between each measurement result.Traditional electronic balance position error detects general artificial counterweight loading and the indicating value range estimation recording mode of adopting, and testing process wastes time and energy.Also occur some at present and adopt Mechanical Driven; Automatically load the detection mode of counterweight like motor-driven or cylinder; But still need manual read's weight display screen and the four measuring indicating value is done artificial record; This mode can alleviate the artificial counterweight labour intensity that loads, and improves the precision that place the counterweight position, but detection efficiency still is difficult to improve owing to measurement result relies on the artificial visually examine.
Summary of the invention
The purpose of the utility model provides a kind of can the detection automatically and discerns electronic balance model to be measured and corresponding selection test counterweight, drives counterweight and is placed on assigned address automatically and carries out the electronic balance position error auto testing instrument based on machine vision that automatic measurement result is obtained and analyzed.
For realizing above-mentioned purpose, the utility model is based on the electronic balance position error auto testing instrument of machine vision, and it comprises frame; Be placed with electronic balance to be detected on the worktable of frame; Worktable one is sidelong and is equipped with weight group, and said electronic balance top one side is provided with the camera that is fixed on the frame, and the frame upper end is provided with three-axis moving control platform; Also be provided with control system on the frame; Control system is electrically connected with camera and three-axis moving control platform respectively, and three-axis moving control platform is provided with movably embedded hook, selects suitable counterweight to be placed into the different detection positions of electronic balance by hook.
Said three-axis moving control platform comprises motor and three driving bearings, and three driving bearings are respectively by motor-driven.
Said three driving bearings comprise X axle, Y axle and Z axle respectively, and embedded hook is fixed on the Z axle, moves up and down along the Z axle; The Z axle along about X axle, the Y axle, move forward and backward.
Said camera can contactlessly obtain electronic balance model and counterweight and be placed on diverse location measurement result on the electronic balance display screen when measuring.
The utility model can be the camera detection mode through machine vision based on the electronic balance position error auto testing instrument of machine vision in use, obtains the model of electronic balance to be detected automatically; The electronic balance model of passing through to be obtained can be confirmed the loading counterweight that is complementary of this electronic balance automatically according to the built-in product database of electronic balance, and selects corresponding test counterweight automatically and accurately be placed on the measuring position through the embedded hook that is provided with on the motor-driven three-axis moving control platform; When the counterweight that carries out diverse location loads measurement, can be that camera is realized the automatic identification of measurement result is read and analyzed through machine vision, thereby judge whether this electronic balance meets the requirement of dispatching from the factory.
The electronic balance position error auto testing instrument based on machine vision of the utility model can carry out the detection of electronic balance position error automatically easily, have simple in structure, operation automation; Manual intervention is few; High efficiency, characteristics such as the automatic analysis of self-identifying of electronic balance model and testing result error have reduced labour intensity; Improved work efficiency, and can realize that robotization detects.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of the utility model based on the electronic balance position error auto testing instrument of machine vision.
Embodiment
As shown in Figure 1, the utility model is based on the electronic balance position error auto testing instrument of machine vision, and it comprises frame 1; Be placed with electronic balance 2 to be detected on the worktable 11 of frame 1; Worktable 11 1 is sidelong and is equipped with weight group 3, and said electronic balance 2 tops one side is provided with the camera 4 that is fixed on the frame 1, and frame 1 upper end is provided with three-axis moving control platform 5; Also be provided with control system 6 on the frame 1; Control system 6 is electrically connected with camera 4 and three-axis moving control platform 5 respectively, and three-axis moving control platform 5 is provided with movably embedded hook 7, selects suitable counterweight 3 to be placed into the different detection positions of electronic balance 2 by hook 7.
Said three-axis moving control platform 8 comprises that motor 81 and 5, three driving bearings 52 of three driving bearings are driven by motor 51 respectively.
Said three driving bearings 5 comprise X axle 51, Y axle 52 and Z axle 53 respectively, and embedded hook 7 is fixed on the Z axle 53, moves up and down along Z axle 53; Z axle 55 along X axle 51, Y axle about 52, move forward and backward, thereby realize that embedded hook 7 moves the optional position in frame 1 so that embedded hook 7 obtains counterweight 3 and places counterweight 3.
Said camera 4 can contactlessly obtain electronic balance 2 models and counterweight 3 and be placed on diverse location measurement result on the electronic balance display screen when measuring.
During use, camera 4 obtains the model of below electronic balance 2 to be detected, and sends control system 6 to; Control system 6 is according to the signal that receives; Loading counterweight 3 from electronic balance 2 systems built-in product database acquisition needs; And then control platform 5 to three-axis moving and send control signal, three-axis moving control platform 5 drives embedded hook 7 and in weight group 3, selects and obtain suitable counterweight automatically; Control system 6 is controlled the embedded hook 7 of three-axis moving control platform 5 drivings again counterweight 3 is accurately placed in a plurality of different detection positions of electronic balance 2 to be detected; After counterweight 3 is placed on the electronic balance 2 to be measured; Embedded hook 7 separates with counterweight 3 automatically; Guaranteed that the weight that is placed on electronic balance 2 tops has only counterweight 3 weight, camera 4 obtains measurement result and the inventory analysis on the electronic balance display screen automatically, thereby judges whether this electronic balance meets the requirement of dispatching from the factory.
Claims (4)
1. based on the electronic balance position error auto testing instrument of machine vision; It comprises frame, is placed with electronic balance to be detected on the worktable of frame, and worktable one is sidelong and is equipped with weight group; It is characterized in that: said electronic balance top one side is provided with the camera that is fixed on the frame; The frame upper end is provided with three-axis moving control platform, also is provided with control system on the frame, and control system is electrically connected with camera and three-axis moving control platform respectively; Three-axis moving control platform is provided with movably embedded hook, selects suitable counterweight to be placed into the different detection positions of electronic balance by hook.
2. the electronic balance position error auto testing instrument based on machine vision according to claim 1 is characterized in that: said three-axis moving control platform comprises motor and three driving bearings, and three driving bearings are respectively by motor-driven.
3. the electronic balance position error auto testing instrument based on machine vision according to claim 2 is characterized in that: said three driving bearings comprise X axle, Y axle and Z axle respectively, and embedded hook is fixed on the Z axle, moves up and down along the Z axle; The Z axle along about X axle, the Y axle, move forward and backward.
4. the electronic balance position error auto testing instrument based on machine vision according to claim 1 is characterized in that: said camera can contactlessly obtain electronic balance model and counterweight and be placed on diverse location measurement result on the electronic balance display screen when measuring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012202290912U CN202614363U (en) | 2012-05-21 | 2012-05-21 | Automatic tester for testing four-corner error of electronic balance based on machine vision |
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CN2012202290912U CN202614363U (en) | 2012-05-21 | 2012-05-21 | Automatic tester for testing four-corner error of electronic balance based on machine vision |
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CN202614363U true CN202614363U (en) | 2012-12-19 |
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CN2012202290912U Expired - Fee Related CN202614363U (en) | 2012-05-21 | 2012-05-21 | Automatic tester for testing four-corner error of electronic balance based on machine vision |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108240856A (en) * | 2018-01-17 | 2018-07-03 | 蚌埠市龙子湖区金力传感器厂 | A kind of position error correcting device of weighing sensor |
CN108548599A (en) * | 2018-05-10 | 2018-09-18 | 四川斐讯信息技术有限公司 | A kind of scale body unbalance loading performance test machine and test method |
CN110243452A (en) * | 2019-06-14 | 2019-09-17 | 浙江省计量科学研究院 | A kind of electronic balance automatic calibrator |
CN110398283A (en) * | 2019-07-01 | 2019-11-01 | 电子科技大学中山学院 | Electronic scale unbalance loading vision test machine |
CN111238623A (en) * | 2020-01-21 | 2020-06-05 | 中国计量科学研究院 | Automatic balance detection method and device |
-
2012
- 2012-05-21 CN CN2012202290912U patent/CN202614363U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108240856A (en) * | 2018-01-17 | 2018-07-03 | 蚌埠市龙子湖区金力传感器厂 | A kind of position error correcting device of weighing sensor |
CN108548599A (en) * | 2018-05-10 | 2018-09-18 | 四川斐讯信息技术有限公司 | A kind of scale body unbalance loading performance test machine and test method |
CN110243452A (en) * | 2019-06-14 | 2019-09-17 | 浙江省计量科学研究院 | A kind of electronic balance automatic calibrator |
CN110398283A (en) * | 2019-07-01 | 2019-11-01 | 电子科技大学中山学院 | Electronic scale unbalance loading vision test machine |
CN111238623A (en) * | 2020-01-21 | 2020-06-05 | 中国计量科学研究院 | Automatic balance detection method and device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150521 |
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EXPY | Termination of patent right or utility model |