CN206281909U - Based on bus type I/O cell board intelligent test device - Google Patents

Based on bus type I/O cell board intelligent test device Download PDF

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Publication number
CN206281909U
CN206281909U CN201621184304.9U CN201621184304U CN206281909U CN 206281909 U CN206281909 U CN 206281909U CN 201621184304 U CN201621184304 U CN 201621184304U CN 206281909 U CN206281909 U CN 206281909U
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China
Prior art keywords
test
cell
cell board
bus type
measured
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CN201621184304.9U
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Chinese (zh)
Inventor
李敏
周岐荒
鲜飞
王鹏贺
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Wuhan Huazhong Numerical Control Co Ltd
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Wuhan Huazhong Numerical Control Co Ltd
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Abstract

Bus type I/O cell board intelligent test device is based on the utility model discloses one kind, including base, the chassis interior is provided with electric control module, test cell and output display unit, the submounts are provided with the support plate for placing I/O cell board to be measured, the support plate top is provided with compression panel, the compression panel is provided with a test handle, and the test cell compresses panel and is provided with signal interactive unit.The utility model realizes tested the comprehensive, efficient of I/O cell clamp test function, intelligent test, and ensure that the uniformity and accuracy of test result.

Description

Based on bus type I/O cell board intelligent test device
Technical field
The utility model belongs to digital control system I/O cell functions of modules technical field of measurement and test, in particular, is related to one kind Based on the integrated board intelligent test device of bus type I/O cell.
Background technology
Numeric Control Technology after the development course that experienced over half a century, at present just towards modularization, intellectuality, networking It is fast-developing with integrated direction.The general framework of middle and high end number bus formula digital control system in industry:Bus protocol, HMI faceplate, Embedded industrial computer module (IPC units), remote I/O unit, thus for wherein I/O cell feature and stability Test is the critical process for ensureing digital control system normal work.
The board card moduleization for bus type I/O cell is tested in the prior art, mostly by way of electronic instrument detection. This kind of method usually using the conventional detection instrument such as universal meter, digital oscilloscope, by connecting line and I/O cell upper end numerical control system The equipment such as system and lower end output response device is connected, and subitem manually completes test.Complex steps, inefficiency, and it is excessive by It is artificial to judge test result, tester is required higher.Nonetheless, for some multifunctional unit class boards using existing Having detection method cannot still complete test.And, awaiting board card is exposed in open test environment, if any ground connection in operation The improper operation such as bad easily damages tested board, is unfavorable for being used in production in enormous quantities test.So in digital control system industry It is interior, it would be highly desirable to have for the long-range I/O cell especially improved technical need of bus type I/O cell board automatic testing equipment.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of based on bus type I/O cell board intelligent test device, The technical problems such as low, the test effect on driving birds is not good of existing method of testing testing efficiency are aimed to solve the problem that, and possesses compact conformation, operation Simple and convenient the features such as.
The technical scheme that the utility model is used for:
One kind is based on bus type I/O cell board intelligent test device, including base, and the chassis interior is provided with electric-controlled Molding block, test cell and output display unit, the submounts are provided with the support plate for placing I/O cell board to be measured, institute State support plate top and be provided with compression panel, the compression panel is provided with a test handle, and the test cell is compressed and set on panel There is signal interactive unit.
Preferably, the electric control module controls on/off by controlling switch, with Switching Power Supply, air switch and Encoder is formed by connecting, for by plant-grid connection signal interactive unit and test cell, and for I/O cell board to be measured is provided Driving voltage;
The test cell includes PLC control unit and test load plate, and wherein PLC control unit is used to produce and performs respectively The test signal of item performance detection, test load plate is used for produced test signal is to be measured via the access of signal interactive unit I/O cell board, the feedback signal that I/O cell board to be measured is correspondingly formed passes to PLC control unit via signal interactive unit With test load plate, test result is thus judged and obtained;
The test result that the output display unit is used to be obtained is shown.
Preferably, the controlling switch is switched for ship type.
Preferably, encoder components are incremental optical-electricity encoder.
Preferably, the PLC control unit is bus-type numerical control system HNC-8A.
Preferably, the output display unit include the numerical monitor of tested voltage, the oscilloscope display of D/A signals, The circulation of output switch amount instruction lamp is lighted display, the PLC of input switch amount and is shown and encoder input display.
Preferably, the I/O cell board to be measured is moved up and down by testing handle drives, and interacted via signal single It is first to be directed at connection with I/O cell board to be measured.
Preferably, the signal interactive unit is needle-bar or connecting wire.
Preferably, the side of the base is provided with board under test placement region.
Preferably, the test device frame structure is made using bakelite or POM resin materials.
Compared with prior art, the utility model has the advantages that:
1st, the utility model controls I/O cell board to be measured by the digital control system of the default test program of PLC control unit Test, realize that tested I/O cell is full-featured, efficient, intelligent test, and ensure that the uniformity of test result With accuracy.
2nd, signal interactive unit described in the utility model realizes I/O cell board to be measured and test cell using needle-bar design Between signal interaction accurate docking, it is to avoid the complicated processes and the lack of standard of hot line job of artificial line, greatly carry Testing efficiency high.
3rd, the utility model can realize the detection to I/O cell board multi-signal type to be measured, and test result is dynamic therewith Display and interface display are combined diversified presentation, are imbued with observation.
4th, the utility model compact conformation, simple to operate, safe, strong applicability.
Brief description of the drawings
Fig. 1 is the structural representation of test device described in the utility model;
Fig. 2 is the fundamental diagram of test device described in the utility model.
Shown in figure:1st, base, 2, support plate, 3, compress panel, 4, test handle, 5, test needle-bar, 6, encoder, 7, LED circulates indicator lamp, and 8, power switch, 9, voltage digital display meter, 10, board under test placement region, 11, digital control system display screen.
Specific embodiment
In order that the purpose, technical scheme and advantage of the utility model embodiment are clearer, below in conjunction with this practicality Technical scheme in new embodiment carries out clear, complete description, it is clear that described embodiment is portion of the present utility model Divide embodiment, rather than whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not paying The every other embodiment obtained on the premise of creative work, belongs to protection domain of the present utility model.
As shown in Fig. 1 to 2, the present embodiment provides a kind of based on bus type I/O cell board intelligent test device, including bottom Seat 1, the base 1 is overall box shaped, is internally provided with electric control module, test cell and output display unit (in figure not Sign).The electric control module controls on/off by controlling switch, is connected with Switching Power Supply, air switch and encoder Form, for by plant-grid connection signal interactive unit and test cell, and for I/O cell board (not indicated in figure) to be measured carries For driving voltage;The test cell includes PLC control unit and test load plate, and wherein PLC control unit is held for generation The test signal of row properties detection, test load plate is used to access produced test signal via signal interactive unit I/O cell board to be measured, the feedback signal that I/O cell board to be measured is correspondingly formed passes to PLC controls via signal interactive unit Unit and test load plate, thus judge and obtain test result;The output display unit is used for the test knot that will be obtained Fruit is shown that the output display unit includes being tested the numerical monitor of voltage, the oscilloscope display of D/A signals, exports and open Pass amount instruction lamp circulation is lighted display, the PLC of input switch amount and is shown and encoder input display.The base 1 sets above There is the support plate 2 for placing I/O cell board to be measured, the top of the support plate 2 is provided with compression panel 3, and the compression panel is provided with One test handle 4, the compression panel 4 is provided with signal interactive unit.Used as the preferred of the present embodiment, signal interactive unit is Test provides (probe-type input/output interface).
Further, test device is divided into left and right two parts, the left side is test zone, including electric control unit and survey Examination unit, the right is output display unit and board under test placement region 10.
The test zone on the left side, is mainly made up of upper and lower two parts:Upper part for test needle-bar 5, test handle 4 and The grade test zone of support plate 2, I/O cell board to be measured is fixed on support plate 2, test needle-bar 5 and test when handle 4 is pushed after tested Test load plate of the point intimate contact will test in information transmission to base 1.Built-in ship type switch 4, Switching Power Supply and coding The conventional electrical equipment of the grade of device element 6, is formed by connecting by connection cables according to electrical characteristic, is responsible for control external power source and is accessed test Device.Power switch, voltage digital display meter 5 and encoder 6 are fixed on back box front panel, are easy to operate and observe result.As The present embodiment it is preferred, encoder 6 be incremental optical-electricity encoder.
PLC control unit is recommended using the microprocessor of HNC-8A types in the present embodiment, and small volume, function are complete, and NC Unit and MCP units separate independent design, and wherein nc unit is especially suitable for the middle PLC control unit in the present embodiment, can be complete Into PLC controls, and save space and cost.Board under test placement region 10 is located at output display unit front idle area, is used for Transfer is deposited when the medium to be tested, test of I/O cell board test process is interrupted, needs are retested.As this implementation Example it is preferred, test device frame structure is made using bakelite or POM resin materials.
The workflow of the present apparatus is introduced referring to Fig. 2:First by test device rear connection post and ready oscillography Device probe keeps connection, with the test result of D/A signals to be seen.Then I/O cell board to be measured is placed in test device On support plate 2, test needle-bar 5 pushes fixation I/O cell board to be measured on support plate 2.Inspection finishes ship type before rear device for opening and opens 8 are closed, to electricity in test device.
Operating voltage is passed to I/O cell board to be measured, I/O cell board to be measured by test load plate by testing needle-bar 5 Test point voltage accesses digital voltage test gauge outfit after needle-bar 5 is drawn after tested, can show after voltage digital display meter 9 after electricity on device Show current tested board test point voltage.Other test items are respectively:Digital control system PLC control unit exports I/O switch amount, warp Bus is transferred to test cell (I/O cell board to be measured and test load plate), and signal band is carried and tests and export by test load plate It has been shown that, can simultaneously observe that output quantity test result is that 16 LED circulations refer on test load plate and I/O cell board to be measured Show that lamp 7 is circulated successively to light.Test load plate is responsible for generation input signal, and needle-bar 5 is input into the survey of tested I/O cell board after tested Information transmission will be tested to PLC control unit by live wire after examination, input signal test knot will be shown on digital control system display screen 11 Really.PLC control unit runs the PLC program of output ± 10V triangular signals, and I/O cell board to be measured is transferred to by bus, passes through Test load strip carries test output, and observation oscilloscope test result is ± 10V triangle waveforms.Rotate test device front panel The encoder 6 of upper fixation, needle-bar 5 is input into tested I/O cell board the turn signal of generation after tested, and PLC is transferred to by bus Control unit, PLC program reception processing shows amount of spin on digital control system display screen 11, rotates forward or inverts.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model Protection domain within.

Claims (10)

  1. It is 1. a kind of to be based on bus type I/O cell board intelligent test device, including base, it is characterised in that:The chassis interior sets There are electric control module, test cell and output display unit, the submounts are provided with for placing I/O cell board to be measured Support plate, support plate top is provided with compression panel, and the compression panel is provided with a test handle, and the test cell is compressed Panel is provided with signal interactive unit.
  2. 2. according to claim 1 based on bus type I/O cell board intelligent test device, it is characterised in that:
    The electric control module controls on/off by controlling switch, be connected with Switching Power Supply, air switch and encoder and Into for by plant-grid connection signal interactive unit and test cell, and for I/O cell board to be measured provides driving voltage;
    The test cell includes PLC control unit and test load plate, and wherein PLC control unit is used to produce execution items The test signal that can be detected, test load plate is used for produced test signal is mono- via signal interactive unit access IO to be measured First board, the feedback signal that I/O cell board to be measured is correspondingly formed passes to PLC control unit and survey via signal interactive unit Examination load board, thus judges and obtains test result;
    The test result that the output display unit is used to be obtained is shown.
  3. 3. according to claim 2 based on bus type I/O cell board intelligent test device, it is characterised in that:The control Switch as ship type is switched.
  4. 4. according to claim 2 based on bus type I/O cell board intelligent test device, it is characterised in that:The coding Device element is incremental optical-electricity encoder.
  5. 5. according to claim 2 based on bus type I/O cell board intelligent test device, it is characterised in that:The PLC Control unit is bus-type numerical control system HNC-8A.
  6. 6. according to claim 2 based on bus type I/O cell board intelligent test device, it is characterised in that:The output It is aobvious that display unit includes that the numerical monitor of tested voltage, the oscilloscope display of D/A signals, the circulation of output switch amount instruction lamp are lighted Show, the PLC of input switch amount shows and encoder input display.
  7. 7. according to claim 1 based on bus type I/O cell board intelligent test device, it is characterised in that:It is described to be measured I/O cell board is moved up and down by testing handle drives, and is directed at company with I/O cell board to be measured via signal interactive unit Connect.
  8. 8. according to claim 1 based on bus type I/O cell board intelligent test device, it is characterised in that:The signal Interactive unit is needle-bar or connecting wire.
  9. 9. according to claim 1 based on bus type I/O cell board intelligent test device, it is characterised in that:The base Side be provided with board under test placement region.
  10. 10. according to claim 1 based on bus type I/O cell board intelligent test device, it is characterised in that:The survey Trial assembly is put frame structure and is made using bakelite or POM resin materials.
CN201621184304.9U 2016-10-27 2016-10-27 Based on bus type I/O cell board intelligent test device Active CN206281909U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621184304.9U CN206281909U (en) 2016-10-27 2016-10-27 Based on bus type I/O cell board intelligent test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621184304.9U CN206281909U (en) 2016-10-27 2016-10-27 Based on bus type I/O cell board intelligent test device

Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107589734A (en) * 2017-08-24 2018-01-16 固安华电天仁控制设备有限公司 A kind of wind electricity change paddle controller IO fastener method of testings
CN109142821A (en) * 2018-08-27 2019-01-04 郑州云海信息技术有限公司 It is a kind of to reduce the circuit and method that hardware testing is interfered in power-on and power-off

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107589734A (en) * 2017-08-24 2018-01-16 固安华电天仁控制设备有限公司 A kind of wind electricity change paddle controller IO fastener method of testings
CN109142821A (en) * 2018-08-27 2019-01-04 郑州云海信息技术有限公司 It is a kind of to reduce the circuit and method that hardware testing is interfered in power-on and power-off
WO2020042740A1 (en) * 2018-08-27 2020-03-05 郑州云海信息技术有限公司 Circuit and method for reducing interference of power on/off to hardware test
CN109142821B (en) * 2018-08-27 2020-08-25 苏州浪潮智能科技有限公司 Circuit and method for reducing interference of power-on and power-off on hardware test

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