CN2622695Y - Microcomputer controlled torque tester - Google Patents
Microcomputer controlled torque tester Download PDFInfo
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- CN2622695Y CN2622695Y CN 03229751 CN03229751U CN2622695Y CN 2622695 Y CN2622695 Y CN 2622695Y CN 03229751 CN03229751 CN 03229751 CN 03229751 U CN03229751 U CN 03229751U CN 2622695 Y CN2622695 Y CN 2622695Y
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Abstract
The utility model relates to a material testing machine, in particular to a microcomputer controlled torsion testing machine, comprising a structural host machine and an electrical control. The testing machine comprises the following devices: a, a sample holding structure adopts an automatic centering holding device with an external rotation and an internal cone; b, an electronic rotating angle measurement equipment is used for the rotating angle measurement in a sample gauge length; c, the electrical control system is an industrial control bus structure. The indexes such as a torque value, a torsion angle and a rotational speed can be set up randomly, and controlled to load automatically by a computer system, thereby being suitable for the requirements of the different tests; a high-accuracy torsion sensor, a photoelectric encoder and a high-accuracy instrument amplifier are adopted, thereby realizing the high-accuracy measurement of every technical index.
Description
One, technical field:
The utility model relates to a kind of Material Testing Machine, more specifically be meant the system controlled by computer torsion testing machine, be applicable to the asking for and studying of industries such as mechanical metallurgy, universities and colleges, scientific research institutions, Aero-Space, automobile making to the twisting property index of metal, nonmetallic materials and member, have advantages such as running is stable, measuring accuracy is high, and is easy to use.
Two, background technology:
In China every profession and trade field, traditional method is every physical property tests such as the stretching of paying attention to material, flattening, bending, shearing, along with rapid development of high and new, advancing by leaps and bounds of national economic profit and national defense construction, the twisting property of material and member asked for seem very important, and China's testing machine industry only has factory's production dial-type twist machine, and kind is few, backward in technique, can't satisfy market demands.Though computer-controlled torsion testing machine is arranged abroad, cost an arm and a leg, inconvenient maintenance, it reverses angle measuring system and adopts the mechanical type torsional angle to measure simultaneously, and load mode is automatic, switches the asking for to asking for indirectly of variable and maximum non-proportional shear strain amount.
Three, summary of the invention:
Key problem in technology to be solved in the utility model is to draw the relative merits of domestic and international prior art, designs a kind of torsion testing machine stable, that measuring accuracy is high, easy to use that turns round.
1. the sample holder structure adopts outward turning inner cone automatic centering method of clamping, owes the additional shearing force that difference is brought to overcome the two-sided centering that clamping structure is existed of present testing machine;
2. the torsion angle in the sample marking distance is measured in real time, finished asking for of shear modulus, maximum non-proportional shear strain automatically, thereby replace adopting at present sample paster mode to ask for method indirectly;
3. the sample condition can store automatically, access automatically, has reduced the preceding identical input troublesome operation of each test;
For this reason; the utility model control system is the industry control bus structure; mainboard and three plug-in cards by a band bus slot are formed, and are made up of 51CPU, serial line interface, logic interfacing and holding circuit etc. on the mainboard, and three plug-in cards are A/D transition card, step-by-step counting card, pulse output card.The driving loading system that sample reverses adopts Panasonic's servo-drive system, is made up of servo-driver, servomotor.
Four, description of drawings:
Fig. 1 is the utility model main machine structure synoptic diagram
Fig. 2 is the utility model electrical control block scheme
Fig. 3 is a twist machine clamp structure synoptic diagram
Fig. 4 is electronics examination torsion angle measurement structure synoptic diagram
Fig. 5 is Fig. 4 vertical view
Fig. 6 is the control panel scheme of installation
Fig. 7 is Figure 1A-A cut-open view
In Fig. 1: 1, frame; 2, scooter; 3, dolly; 4, servomotor; 5, reductor; 6, anchor clamps; 7, bearing bracket stand; 8, torque sensor; 9, fixed support; 10, control box.
In Fig. 3: 31, grip nut; 32, clamp body; 33, clamp; 34, clamp body joint; 35, handle.
In Fig. 4,5: 41, photoelectric encoder support; 42, web joint; 43, tensioner support; 44, fixed support; 45, little flute profile wheel; 46, photoelectric encoder; 47, sample; 48, adapter sleeve; 49, big flute profile wheel; 50, flute profile band.
Five, embodiment:
The utility model is made up of structure main frame and electrical control two major parts.
With reference to the accompanying drawings 1: the structure main frame is made up of frame 1, scooter 2, dolly 3, servomotor 4, reductor 5, anchor clamps 6, bearing bracket stand 7, torque sensor 8, fixed support 9, control box 10 etc.
Servomotor 4, speed reduction unit 5 are installed on the dolly 3, and the rotation of motor drives the speed reduction unit rotation, at speed reduction unit another side sectional fixture 6.
The other end in frame 1, fixed support 9, bearing bracket stand 7 are housed on the scooter, and another anchor clamps 6 are installed on bearing bracket stand, between bearing bracket stand 7 and fixed support 9, mounting torque sensor 8, bearing bracket stand 7, fixed support 9 are enclosed in the control box 10 with torque sensor 8, on control box control panel 6-1 on one side various gauge tap and Pointing sign board are installed.
With reference to the accompanying drawings 3: the twist machine anchor clamps constitute the automatic clamping of outward turning inner cone by grip nut 31, clamp body 32, clamp 33, clamp body joint 34 and handle 35.During work, the outward turning handle drives grip nut, drives clamp body 32 motions, makes clamp 33 hug sample.
With reference to the accompanying drawings 4 and 5: the electronic type corner measuring apparatus is made of photoelectric encoder support 41, web joint 42, tensioner support 43, fixed support 44, little flute profile wheel 45, photoelectric encoder 46, adapter sleeve 48, big flute profile wheel 49 and flute profile band 50.By the tensioner support web joint 42 is installed at fixed support 44 2 ends, photoelectric encoder support 41, little flute profile wheel 45 are housed on the web joint 42, photoelectric encoder 46 is housed on the photoelectric encoder support 41.When outer corner measurement, fixed support is installed on the frame 1, simultaneously big flute profile wheel 49 is connected with adapter sleeve 48, be installed to then on the main frame anchor clamps 6, and adapter sleeve 48, big flute profile wheel 49, anchor clamps 6 are fused, pack into then sample 47, travelling car 3, two big or small flute profile wheel places that make angle-measuring equipment load onto flute profile band 50 at grade then.
With reference to the accompanying drawings 2: electric control system is the industry control bus structure; mainboard and three plug-in cards by a band bus slot are formed; be made up of 51CPU, serial line interface, logic interfacing and holding circuit etc. on the mainboard, three plug-in cards are respectively A/D transition card, step-by-step counting card, pulse output card.The driving loading system that sample reverses adopts Panasonic's servo-drive system, is made up of servo-driver, servomotor.
Its principle of work: the A/D transition card carries out preposition amplification, the amplification of second level stepping to the signal of torque sensor, and biasing is returned to zero, A/D changes etc., and the driving voltage of high stable is provided to sensor simultaneously.The enlargement factor of second level stepping calculates and switches to the most effective enlargement factor accordingly automatically by 51CPU according to current transformation result, improve resolution and measurement range with this.
The step-by-step counting card is received and is changed by line receiver earlier the code device signal of input, then the signal after the conversion being carried out quadruple handles, resolution is improved four times, the signal after the quadruple is sent into 16 counter, 51CPU reads count value and travel direction is judged and the increase and decrease counting adds up again.The highest incoming frequency of numbered card pulse signal is 500KHz, and the highest frequency of angle pulse signal is 62.5KHz, has guaranteed the reliability of counting.
The pulse output card is scaled corresponding pulse duration frequency signal with the rate signal that receives, and converts to comprise the frequency division and the frequency multiplication of pulse signal, and continuous rate signal is transformed to the pulse signal of cline frequency, again by line driver with pulse signal conversion output.The pulse output card is also exported direction signal, the servo signal that provides of reception and the return control signal etc. that servomotor rotates simultaneously.
This system mainly finishes the measurement of the amplification of torque sensor signal and the conversion of A/D, whole sample windup-degree, the measurement of sample marking distance intort angle, the pulse signal output of giving servo drive system, the execution of overload protection signal, the action execution of manual control box operation etc.
51CPU links to each other with calculating by serial port, receives also and carries out from computer commands.
Carry out processing such as data acquisition in the idle condition that receives beyond ordering, mainly comprise following task:
1. finish the conversion of torque signal;
2. the counting of angle pulse signal and conversion;
3. the detection of servo interface signal;
4. manually the action of control enclosure is carried out;
5. the judgement of overload protection and execution;
6. the reception of computer command;
7. send image data (comprising moment of torsion, angle, torsion angle 1, torsion angle 2 etc.) to computing machine;
8. transmit various rub-out signals and feedback and accepted the execution result of computer command.
After the receiving computer order, the action that the decision of tabling look-up will be carried out is as follows:
1. motor carries out rotating according to setting speed;
2. the zero clearing of moment of torsion, angle, torsion angle 1, torsion angle 2, time equivalent;
3. range manually is provided with automatic switchover;
4. the setting of initial position;
5. return initial position;
6. begin test etc.
The entire work process of this computer system is a time-sharing system.Main task is as follows in the process of the test:
1. receive the image data of 51CPU transmission and be stored in storer;
2. calculate the increment (being the deformation quantity of gauge length inside lock) of gauge length inside lock and be stored in storer according to torsion angle 1 that receives and torsion angle 2;
3. carrying out data in real time by curve form of selecting and video data shows and curve plotting;
4. receive 51CPU and transmit various rub-out signals and judgment processing;
5. the judgement of overload protection and processing;
6. detect 51CPU to the implementation status of computer command and processing in time;
7. detect current rotating speed and carry out closed loop PID adjusting according to angle and time timer;
8. the yield situation of monitoring sample and running speed is adjusted by the speed of preestablishing according to its result;
9. according to the off-test condition of software set off-test whether alignment processing is monitored and made to the data that 51CPU transmits in real time;
10. the processing of data, deposit etc. after the off-test.
Handshake method is adopted in communication between computing machine and the 51CPU, if computing machine or 51CPU send or the instruction and data accepted is not received or not exclusively, they extract up-to-date transmission respectively from separately buffer zone instruction array or data are lined up instruction or data send once more, up to receive normal till.
This shows, the utlity model has indexs such as torque value, torsion angle, rotating speed function is set arbitrarily, and control automatically by computer system and implement to load, be fit to different test requests, adopt high precision torque sensor, photoelectric encoder, high-precision meter amplifier, can realize the high-acruracy survey of every technical indicator.
Claims (8)
1, a kind of system controlled by computer torsion testing machine comprises structure main frame and electric control system, it is characterized in that:
A. the sample holder structure adopts outward turning inner cone automatic centering clamping device;
B. the outer corner measurement in the sample marking distance is the electronic type corner measuring apparatus;
C. electric control system is the industry control bus structure; mainboard and three plug-in cards by a band bus slot are formed; be made up of 51CPU, serial line interface, logic interfacing and holding circuit on the mainboard, three plug-in cards are respectively A/D transition card, step-by-step counting card, pulse output card.
2, system controlled by computer torsion testing machine according to claim 1, it is characterized in that: described outward turning inner cone automatic centering clamping device is made up of grip nut, clamp body, clamp, clamp body joint and handle, the outward turning handle drives nut rotation rear drive inner conical clamp body, and clamp clamps sample automatically.
3, system controlled by computer torsion testing machine according to claim 1, it is characterized in that: described electronic type corner measuring apparatus is by the photoelectric encoder support, web joint, the tensioner support, fixed support, little flute profile wheel, photoelectric encoder, adapter sleeve, big flute profile wheel and flute profile band constitute, by the tensioner support web joint is installed at fixed support two ends, web joint is equipped with the photoelectric encoder support, little flute profile wheel, on the photoelectric encoder support photoelectric encoder is housed, when outer corner measurement, fixed support is installed on the frame, simultaneously big flute profile wheel is connected with adapter sleeve, be installed to then on the main frame anchor clamps, and make adapter sleeve, big flute profile wheel, anchor clamps fuse, the sample of packing into then, travelling car, two big or small flute profile wheel places that make angle-measuring equipment load onto the flute profile band at grade then.
4, system controlled by computer torsion testing machine according to claim 1 is characterized in that: the driving loading that sample reverses is that Panasonic's servo-driver and servomotor are formed.
5, system controlled by computer torsion testing machine according to claim 1, it is characterized in that: described A/D transition card carries out preposition amplification, the amplification of second level stepping to the signal of torque sensor, biasing zeroing, A/D conversion etc., the driving voltage of high stable is provided to sensor simultaneously, the enlargement factor of second level stepping calculates and switches to the most effective enlargement factor accordingly automatically by 51CPU according to current transformation result, improve resolution and measurement range with this.
6, system controlled by computer torsion testing machine according to claim 1, it is characterized in that: described step-by-step counting card is received and is changed by line receiver earlier the code device signal of input, then the signal after the conversion being carried out quadruple handles, resolution is improved four times, again the signal after the quadruple is sent into 16 counter, 51CPU reads count value and travel direction is judged and the increase and decrease counting adds up, the highest incoming frequency of numbered card pulse signal is 500KHz, the highest frequency of angle pulse signal is 62.5KHz, has guaranteed the reliability of counting.
7, system controlled by computer torsion testing machine according to claim 1, it is characterized in that: described pulse output card is scaled corresponding pulse duration frequency signal with the rate signal that receives, conversion comprises the frequency division and the frequency multiplication of pulse signal, continuous rate signal is transformed to the pulse signal of cline frequency, by line driver the pulse signal conversion is exported, the pulse output card is also exported direction signal, the servo signal that provides of reception and the return control signal that servomotor rotates simultaneously again.
8, system controlled by computer torsion testing machine according to claim 1 is characterized in that: 51CPU links to each other with calculating by serial port, receives and also carries out from computer commands, and handshake method is adopted in the communication between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229751 CN2622695Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled torque tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229751 CN2622695Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled torque tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622695Y true CN2622695Y (en) | 2004-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03229751 Expired - Fee Related CN2622695Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled torque tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622695Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101248B (en) * | 2007-07-20 | 2010-05-19 | 上海应用技术学院 | Adjustable clamping device of minisize torsional rod rigidity test |
| CN104833508A (en) * | 2015-05-17 | 2015-08-12 | 成都诚邦动力测试仪器有限公司 | Signal bias amplification type gearbox test system based on self-gain control |
| CN104849043A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Gearbox testing system based on dynamic performance detection |
| CN104849045A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Gearbox testing system based on peak clipping pulse wave modulation circuit |
| CN104849041A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Signal biased amplification-type gearbox testing system |
| CN106680117A (en) * | 2016-06-02 | 2017-05-17 | 山东大学（威海） | Novel sheet metal torsion testing machine |
| CN112881201A (en) * | 2021-01-15 | 2021-06-01 | 深圳市特发信息股份有限公司 | Automatic test system that twists reverse of OPGW optical cable |
| CN113237642A (en) * | 2021-04-09 | 2021-08-10 | 南京航空航天大学 | Double-torsion-spring fatigue test device and test method thereof |
-
2003
- 2003-03-25 CN CN 03229751 patent/CN2622695Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101248B (en) * | 2007-07-20 | 2010-05-19 | 上海应用技术学院 | Adjustable clamping device of minisize torsional rod rigidity test |
| CN104833508A (en) * | 2015-05-17 | 2015-08-12 | 成都诚邦动力测试仪器有限公司 | Signal bias amplification type gearbox test system based on self-gain control |
| CN104849043A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Gearbox testing system based on dynamic performance detection |
| CN104849045A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Gearbox testing system based on peak clipping pulse wave modulation circuit |
| CN104849041A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Signal biased amplification-type gearbox testing system |
| CN106680117A (en) * | 2016-06-02 | 2017-05-17 | 山东大学（威海） | Novel sheet metal torsion testing machine |
| CN112881201A (en) * | 2021-01-15 | 2021-06-01 | 深圳市特发信息股份有限公司 | Automatic test system that twists reverse of OPGW optical cable |
| CN113237642A (en) * | 2021-04-09 | 2021-08-10 | 南京航空航天大学 | Double-torsion-spring fatigue test device and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20120325 |