CN2674430Y - Microcomputer controlled electronic universal tester - Google Patents
Microcomputer controlled electronic universal tester Download PDFInfo
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- CN2674430Y CN2674430Y CN 03229752 CN03229752U CN2674430Y CN 2674430 Y CN2674430 Y CN 2674430Y CN 03229752 CN03229752 CN 03229752 CN 03229752 U CN03229752 U CN 03229752U CN 2674430 Y CN2674430 Y CN 2674430Y
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Abstract
The utility model relates to a microcomputer controlled electronic universal tester which comprises a structure host and electric control, wherein, the structure host comprises a machine base at the bottom of a tester, two fixed cross beams at the top of the tester, a shifting cross beam which is connected with a screw rod, four guiding feed rods which are arranged at four corners of the tester and are used for connecting the upper and the lower parts to form a door type framework, and the screw rod is arranged at the inner side of the feed rod and is connected with the shifting cross beam through a spacing retainer ring; a servo driver, a servo motor, a speed reducer and a synchronous toothed belt are arranged in the machine base, the servo motor is controlled by the servo driver, the motor is mechanically connected with the speed reducer, wheels of the speed reducer are provided with the synchronous toothed belt, and the screw rod is driven by the synchronous toothed belt to rotate; the electric control comprises a computer software system, lower computer system and a drive loading system. The utility model can stably and automatically control the loading speed, the control processes are programmable, and each process can be switched without the impact. The utility model is suitable for the test and the research of mechanical properties, such as stretching, compression, bending, cutting, peeling, tearing, etc., of metallic and non-metallic materials, and has the characteristics of convenient operation, stable operation, high test precision, etc.
Description
One, technical field:
The utility model relates to a kind of Material Testing Machine, more specifically be meant the sub-universal testing machine of microcomputer controlled electro, be applicable to various metals, nonmetallic materials stretching, compression, bending, the test and the research of mechanical property such as shear, peel off, tear, have characteristics such as easy to operate, stable, measuring accuracy height.
Two, background technology:
The universal testing machine of China's use at present, the overwhelming majority is the old product of the sixties, outmoded, the low precision of machine, performance is incomplete yet.Though the electronic universal tester of automatic control is abroad arranged, cost an arm and a leg, the maintenance cost height.And the anchor clamps of testing machine should adapt to different materials, various forms of test, and at present anchor clamps can produce different materials and are difficult for producing in clamping, easily broken jaw or the drawing process peeling problem.
Three, summary of the invention:
Key problem in technology to be solved in the utility model, be to design a kind of rational in infrastructure, stable, measuring accuracy is high, switch do not have flexibly impact, easy to operate universal testing machine.
The utility model is made up of structure main frame and electrical control two parts: the structure main frame comprises the support that is positioned at the testing machine bottom, be positioned at two fixed cross beams at testing machine top, a moving beam that links to each other with leading screw, testing machine is provided with in the connection for four jiaos, constitute four guiding feed rods of portal frame down, leading screw is positioned at the feed rod inboard, connect moving beam by spacing back-up ring, servo-driver is housed in support, servo motor, speed reduction unit, synchronous cog belt, servo-driver control servo motor, motor mechanical connection speed reduction unit, the speed reduction unit wheel is provided with synchronous cog belt and drives the leading screw rotation; Electrical control comprises computer software, lower computer system, driving loading system, and each other electric signal connects, and wherein computing machine is two-way the connection with electric signal between the slave computer.
The transmission loading system adopts the PANASONIC servo controller, the driver control servomotor then through speed reduction unit, high torque (HT) Circular Arc Profile Synchronous Belt, drives the high precision ball leading screw and rotates, drive moving beam and realize loading, therefore have characteristics such as transmission is accurate, control accuracy is high, noise is low.
Load sensor is installed on moving beam, moving beam and examination platform constitute space down, are the main test space of testing machine, when the load measurement scope need be expanded, little load sensor is being installed on the entablature, on moving beam, is being adorned clamping fixture seat, space on the formation.
Select for use high precision pretension ball-screw to drive crossbeam, can guarantee crossbeam no mechanical gap under any stress state.
Mechanical safety elastic shaft coupling is installed between servo motor and reductor, can be guaranteed to be connected between servo motor and the reductor and roll into a ball axle degree and accidental mechanical safeguard protection.
Under big load condition,, adopt two-way tight lock for preventing the ball-screw displacement.
Measurement and Control System adopts multi-purpose computer control, in conjunction with advanced DSP technology, carry out blocking, modularization, standard combination and design, so measuring accuracy height, precise control, flexible configuration, interchangeability is strong.
Wherein the dynamometry unit adopts high precision, high stability load sensor and low noise, low drift prime amplifier and double integrator quick A/D converter.
Distortion, displacement measurement unit:
1. crosshead displacement adopts the high precision photoelectric scrambler to measure resolution 2 * 10
-4Mm;
2. small deformation (extensibility＜50%) is measured and is adopted electronic extensometer and A/D change-over circuit to realize that resolution is 7 * 10
-4Mm;
3. large-deformation measuring adopts photoelectric encoder to measure.
Data processing and Control Software adopt Chinese Windows2000/XP platform, and travelling speed is fast, beautiful interface, easy and simple to handle.
Control module is made up of computing machine and slave computer control system, the input of computer realization test parameters and condition, and, realize testing the control of loading procedure according to this with passing to the slave computer control system under the control data.
Four, description of drawings:
Fig. 1 is the utility model structural representation
Fig. 1-2 is Fig. 1 side view
Fig. 2 is a cupping clamp structure synoptic diagram
Fig. 3 is Fig. 2 A-A cut-open view
Fig. 4 is the utility model electrical schematic diagram
Fig. 4-2 is control rack synoptic diagram
Fig. 5 is the utility model software flow pattern
In Fig. 1: 1, support; 2, fixed cross beam; 3, moving beam; 4, guiding thick stick; 5, leading screw; 6, leading screw cover; 7, anchor clamps; 8, digital guide extension meter; 9, spacing ring washer; 10, lively control enclosure; 11, power switch.
In Fig. 2: 12, pressurizing piston; 13, pad mould; 14, pressing mold; 15, drift; 16, sample; 17, sight glass.
In Fig. 3: 18, tensimeter; 19, pressurized handgrip.
In Fig. 4: 20, printer; 21, display; 22, the electronics device of extending; 23, main frame; 24, worktable.
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 utility model structure main frame constitutes portal frame construction by support 1, two fixed cross beams 2, a moving beam 3 and four guiding feed rods 4.Servo-driver, servo motor, speed reduction unit, synchronous cog belt are housed in support, and servo-driver control servo motor through speed reduction unit, synchronous cog belt, drives leading screw and rotates, and drives moving beam then and loads.
Described synchronous cog belt is the high torque (HT) Circular Arc Profile Synchronous Belt.
Described leading screw is a high precision pretension leading screw.
On moving beam 3 load sensor is installed, moving beam 3 and examination table top constitute space down, are the main test space of testing machine.
When the load measurement scope need be expanded, little load sensor is being installed on the entablature, on moving beam 3, is being adorned clamping fixture seat, space on the formation.
The machine security spring coupling is installed, to guarantee right alignment and machine security between servo motor and reductor.
Under big load condition,, adopt two-way tight lock for preventing the ball-screw displacement.
With reference to the accompanying drawings 2, for adapting to various materials, various forms of test, jig Design becomes cupping shape structure.
With reference to the accompanying drawings 4,5, electrical control is made up of computer software, lower computer system, driving loading system etc., slave computer carries out real-time data acquisition and control, the complete machine operation is all finished by computing machine, computing machine commander slave computer produces concrete action, after slave computer receives computer instruction, drives loading according to corresponding instruction, carry out data processing by computing machine after the end of test (EOT), thus the output test result.
Described driving loading system adopts servo-driver to control its servo motor (by Japanese import), through reductor and high torque (HT) Circular Arc Profile Synchronous Belt, drives the high precision ball leading screw and rotates, and drives moving beam and realizes loading.
Described lower computer system is 8051 to be the Single Chip Microcomputer (SCM) system of core, adopts the ISA industrial-controlled general line, gathers and be controlled to be the blocking design, is the form of plug-in card.Plug-in card is respectively: A/D transition card, step-by-step counting card, pulse output card.
The A/D transition card carries out preposition amplification, the amplification of second level stepping to the signal of sensor (load sensor, electronic extensometer), and biasing is returned to zero, A/D changes etc., and the driving voltage of high stable is provided to sensor simultaneously.Second level stepping amplification multiple calculates and switches to the most effective enlargement factor accordingly automatically by CPU according to current transformation result, to improve resolution and measurement range.
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, CPU 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 displacement pulse signals is 100KHz, 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 also exports direction signal that servomotor rotates simultaneously, receive the servo signal that provides and return control signal, detection limit signal, output pulse reset signal etc.
This system mainly finishes amplification and the conversion of A/D, the measurement of crosshead displacement, the extension of large deformation device of load and electronic extensometer sensor signal and measures, gives the execution of the pulse signal output of servo drive system, overload protection signal, the action execution of manual control box operation etc.
Master cpu links to each other with calculating by serial port, receives from computer commands.Carry out processing such as data acquisition in the idle condition that receives beyond ordering, comprising: 1. finish the conversion of sensor signal; 2. displacement and big counting and conversion of extending pulse signal; 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.After the receiving computer order, the action that the decision of tabling look-up will be carried out, have: 1. motor carries out rotating according to setting speed; 2. the zero clearing of load, strain, displacement, big extension, time equivalent; 3. range manually is provided with automatic switchover; 4. the setting of initial position; 5. return initial position; 6. begin test etc.
Described computer software, its operating platform be under the Chinese Windows2000/XP platform stretching, compression, bending, peel off, tear, software package such as shearing, its FB(flow block) is with reference to figure 5.
In sum, the utility model can stably be controlled automatically to loading speed, control procedure is able to programme, each process does not have impact and switches, computing machine carries out data acquisition and processing (DAP), by printer prints test findings and trial curve, have characteristics such as easy to operate, stable, measuring accuracy height.
Claims (9)
1. a system controlled by computer electronics universal testing machine comprises structure main frame and electrical control, it is characterized in that:
A. main frame comprises that the support that is positioned at testing machine bottom, two fixed cross beams that are positioned at the testing machine top, the moving beam, the testing machine that link to each other with leading screw are provided with four feed rods that lead that are connected upper and lower formation portal frame for four jiaos, leading screw is positioned at the feed rod inboard, connect moving beam by spacing back-up ring, servo-driver, servo motor, speed reduction unit, synchronous cog belt are housed in support, servo-driver control servo motor, motor mechanical connection speed reduction unit, speed reduction unit wheel are provided with synchronous cog belt and drive the leading screw rotation;
B. electrical control comprises computer software, lower computer system, driving loading system, and each other electric signal connects, and wherein computing machine is two-way the connection with electric signal between the slave computer.
2. according to the described system controlled by computer electronics of claim 1 universal testing machine, it is characterized in that: described synchronous cog belt is the high torque (HT) Circular Arc Profile Synchronous Belt.
3. system controlled by computer electronics universal testing machine according to claim 1 is characterized in that: described leading screw is a high precision pretension leading screw, two-way tight lock.
4. system controlled by computer electronics universal testing machine according to claim 1, it is characterized in that: drive loading system, adopt servo-driver to control its servo motor, through reductor and high torque (HT) Circular Arc Profile Synchronous Belt, drive the high precision ball leading screw and rotate, drive moving beam and realize loading.
5. system controlled by computer electronics universal testing machine according to claim 1 is characterized in that: the machine security spring coupling is installed between servo motor and the reductor.
6. system controlled by computer electronics universal testing machine according to claim 1, it is characterized in that: described lower computer system, be to be the Single Chip Microcomputer (SCM) system of core with 8051, adopt the ISA industrial-controlled general line, gather and be controlled to be the blocking design, be the form of plug-in card, plug-in card is respectively: A/D transition card, step-by-step counting card, pulse output card.
7. system controlled by computer electronics universal 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 sensor (load sensor, electronic extensometer), biasing zeroing, A/D conversion etc., the driving voltage of high stable is provided to sensor simultaneously, second level stepping amplification multiple calculates and switches to the most effective enlargement factor accordingly automatically by CPU according to current transformation result, to improve resolution and measurement range.
8. system controlled by computer electronics universal 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, CPU 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 displacement pulse signals is 100KHz, has guaranteed the reliability of counting.
9, system controlled by computer electronics universal 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, again by line driver with pulse signal conversion output, the pulse output card also exports direction signal that servomotor rotates simultaneously, receive the servo signal that provides and return control signal, detection limit signal, output pulse reset signal etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229752 CN2674430Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled electronic universal tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229752 CN2674430Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled electronic universal tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674430Y true CN2674430Y (en) | 2005-01-26 |
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ID=34473095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03229752 Expired - Fee Related CN2674430Y (en) | 2003-03-25 | 2003-03-25 | Microcomputer controlled electronic universal tester |
Country Status (1)
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|---|---|
| CN (1) | CN2674430Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806688A (en) * | 2010-03-19 | 2010-08-18 | 华南理工大学 | Automatic data collection device for unidirectional tension test of mechanical connecting joint of round steel with super-large diameter |
| CN101271348B (en) * | 2008-02-25 | 2010-09-15 | 湖北汉丹机电有限公司 | Digital steering engine |
| CN1987404B (en) * | 2005-12-20 | 2010-10-06 | 上海华龙测试仪器有限公司 | Electronic universal tester |
| CN101493402B (en) * | 2009-03-02 | 2011-05-25 | 北京航空航天大学 | Sheet material forming and drawing frictional property test machine |
| CN102778394A (en) * | 2011-05-10 | 2012-11-14 | 株式会社岛津制作所 | Material testing machine |
| CN102944472A (en) * | 2012-11-14 | 2013-02-27 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN103278377A (en) * | 2013-06-05 | 2013-09-04 | 南通市华海铸造有限公司 | New-type electronic universal material testing machine |
| CN106596263A (en) * | 2016-12-02 | 2017-04-26 | 哈尔滨工程大学 | In-plane tensioning, sharing and bending loading device for super-elastic soft plates |
| CN107806835A (en) * | 2017-12-08 | 2018-03-16 | 江西省煤炭工业科学研究所 | The device of optical grating ruler measurement is mining two times of maximum static lotus set deformation volumes of latch |
| CN109632475A (en) * | 2017-10-06 | 2019-04-16 | 镇江长河电力技术有限公司 | A kind of highly-safe electronic universal tester |
| CN109980994A (en) * | 2017-12-28 | 2019-07-05 | 核动力运行研究所 | A kind of brushless motor rapid debugging system and method |
| CN110441141A (en) * | 2019-07-17 | 2019-11-12 | 山东大学 | Novel stretching-shear testing maschine |
| CN110987597A (en) * | 2019-12-30 | 2020-04-10 | 广东火炬检测有限公司 | Universal material testing machine |
-
2003
- 2003-03-25 CN CN 03229752 patent/CN2674430Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987404B (en) * | 2005-12-20 | 2010-10-06 | 上海华龙测试仪器有限公司 | Electronic universal tester |
| CN101271348B (en) * | 2008-02-25 | 2010-09-15 | 湖北汉丹机电有限公司 | Digital steering engine |
| CN101493402B (en) * | 2009-03-02 | 2011-05-25 | 北京航空航天大学 | Sheet material forming and drawing frictional property test machine |
| CN101806688A (en) * | 2010-03-19 | 2010-08-18 | 华南理工大学 | Automatic data collection device for unidirectional tension test of mechanical connecting joint of round steel with super-large diameter |
| CN102778394B (en) * | 2011-05-10 | 2015-02-18 | 株式会社岛津制作所 | Material testing machine |
| CN102778394A (en) * | 2011-05-10 | 2012-11-14 | 株式会社岛津制作所 | Material testing machine |
| CN102944472A (en) * | 2012-11-14 | 2013-02-27 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN102944472B (en) * | 2012-11-14 | 2014-11-12 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN103278377A (en) * | 2013-06-05 | 2013-09-04 | 南通市华海铸造有限公司 | New-type electronic universal material testing machine |
| CN106596263A (en) * | 2016-12-02 | 2017-04-26 | 哈尔滨工程大学 | In-plane tensioning, sharing and bending loading device for super-elastic soft plates |
| CN106596263B (en) * | 2016-12-02 | 2019-04-23 | 哈尔滨工程大学 | A kind of interior draw of super-elasticity flexible sheet material plane cuts curved loading device |
| CN109632475A (en) * | 2017-10-06 | 2019-04-16 | 镇江长河电力技术有限公司 | A kind of highly-safe electronic universal tester |
| CN107806835A (en) * | 2017-12-08 | 2018-03-16 | 江西省煤炭工业科学研究所 | The device of optical grating ruler measurement is mining two times of maximum static lotus set deformation volumes of latch |
| CN107806835B (en) * | 2017-12-08 | 2024-04-16 | 江西省煤炭工业科学研究所 | Device for measuring double maximum static load permanent deformation of mining bolt by grating ruler |
| CN109980994A (en) * | 2017-12-28 | 2019-07-05 | 核动力运行研究所 | A kind of brushless motor rapid debugging system and method |
| CN110441141A (en) * | 2019-07-17 | 2019-11-12 | 山东大学 | Novel stretching-shear testing maschine |
| CN110987597A (en) * | 2019-12-30 | 2020-04-10 | 广东火炬检测有限公司 | Universal material testing machine |
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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: 20050126 Termination date: 20120325 |