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微机控制电子万能试验机的应用领域与技术分析
微机控制电子万能试验机
二.使用领域：
该产品广泛用于金属、非金属材料的拉、压、弯剪等力学性能试验。配以种类繁多的附具，还可用于型材和构件的力学性能试验。在试样变形大，试验速度快的绳、带、丝、橡胶、塑料等材料试验领域，同样具有非常广泛的应用前景。适用于质量监督、教学科研、航空航天、钢铁冶金、汽车、建工建材等试验领域。
三.依据标准：
满足国家标准GB/T228-2010《金属材料 室温拉伸试验方法》、GB/T7314-2005《金属压缩试验方法》的要求。
四.重点描述：
1主机：该机采用双空间门式结构，上拉下压，横梁无级升降。传动部分采用圆弧同步齿形带，丝杠副传动，传动平稳，噪音低。特别设计的同步齿形带减速系统和滚珠丝杠副带动试验机的移动横梁运动，实现了无间隙传动。
2附具：
标准配置：楔型拉伸附具、压缩附具各一套。
3电气测控系统：
3.1采用浙江东菱交流伺服驱动器和交流伺服电机，性能稳定、可靠，具有过流、过压、超速、过载等保护装置。调速比可达1:100000。
3.2具有过载、过流、过压、位移上下限位和紧急停止等保护功能。
3.3内置式控制器，保证了该试验机可以实现试验力、试样变形和横梁位移等参量的闭环控制，可实现等速试验力、等速位移、等速应变、等速载荷循环、等速变形循环等试验。各种控制模式之间可以平滑切换。
3.4试验结束时，可手动或自动高速返回试验初始位置。
3.5实现了真正意义上的物理调零、增益调整及试验力测量的自动换档、调零、标定和存盘，无任何模拟调节环节，控制电路高度集成化。
3.6电气控制线路参照国际标准，符合国家试验机电气标准，抗干扰能力强，保证了控制器的稳定性，实验数据准确性。
3.7具有网络接口，可进行数据的传输、存储、打印记录和网络传输打印，可与企业内部局域网或Internet网连接。
4. 软件主要功能特点描述：
该测控软件用于微机控制电子万能试验机进行各种金属及非金属（如，人造板等）的试验，按照相应标准完成实时测量与显示、实时控制及数据处理、结果输出等各种功能。
(1)分权限管理，不同级别的操作者有不同的操作权限，可操作的菜单等内容也不同，既使普通操作者操作简单、方便、快捷，又有效的保护了系统；
(2)实时测量与显示试验力及峰值、位移、变形等各信号；实现了Win2000、WinXP等NT模式平台下的实时采集与控制；并实现了精确定时，高速采样；
(3)实现了负荷-变形，负荷-位移等多种试验曲线的实时屏幕显示，可随时切换观察，曲线的放大与缩小非常方便；
(4)具备试验参数的计算机存储、设定、加载等功能，调零、标定等操作都从软件上进行，各参数可方便的进行存储和调入，从而使一台主机带多个传感器时可以方便的切换，而且没有数目限制；
(5)支持多种控制方式，包括开环等速位移及等速力、等速应力等多种闭环控制方式；并在操作者调试闭环参数过程中给出标准参考曲线，从而使用户实际观察到各参数对闭环效果产生的影响。
(6)具有试验过程控制模式智能设置专家系统，提供给专业用户自动程控编程器。用户可以根据实际需要，按照规则灵活组合多种控制方式及控制速度，编制适合自己需要的控制程序。测控软件会自动按照用户设置自动控制试验过程。
(7)采用人机交互方式分析数据。处理方法满足应用广泛的《GB/T 228-2002金属材料室温拉伸试验方法》要求，可自动计算弹性模量、屈服强度、规定非比例延伸强度等各种性能参数，也可人工干预分析过程，提高分析的准确度；也可以根据用户提供的标准进行其他的数据处理。
(8)试验数据以文本文件存贮，以方便用户查询，以及利用任何通用商业报表、字处理软件对试验数据进行再处理，同时方便联网传递数据；
(9)可记录、保存试验全过程的数据曲线，并具有演示功能，实现试验曲线再现。还可以进行曲线叠加对比，便于对比分析；
(10)可按用户要求格式打印试验报告。用户可以自己选择报告输出基本信息和试验结果及试验曲线的内容，满足各种需要；
(11)实现了试验力和变形的数字调零、自动标定，方便了操作，提高了机器的可靠性。各种参数系统设置以文件形式存贮，便于保存和恢复；
(12)可应用于Win98、Win2000、WinXP等多种操作系统。试验过程控制、横梁移动速度的改变、参数输入等操作可全部用键盘、鼠标完成，使用方便快捷；
(13)可自动识别并支持外部点动控制，使装夹试样时很方便；
(14)具备过载保护自动停机功能，并可以自动判断试样断裂，自动停机。
根据用户要求不同，上述软件功能会有增减或调整改变。
设备参数EQUIPMENT PARAMETERS
1 | 最大试验力 | 200KN | |
2 | 试验力测量范围 | 0.4%-100%FS | |
3 | 试验力测量准确度 | 优于示值±0.5% | |
4 | 横梁位移测量精度 | 0.001mm | |
5 | 位移测量准确度 | ±0.5% | |
6 | 变形测量范围 | 0.4%-100%FS | |
7 | 变形测量精度 | ±0.5% | |
8 | 变形分辨率 | 0.001mm | |
9 | 力控速率调节范围 | 0.005-5%FS/S | |
10 | 力控速率相对误差 | ±1%设定值以内 | |
11 | 变形速率调节范围 | 0.02-5%FS/S | |
12 | 变形控制速率相对误差 | 速率＜0.05％FS时，为±2%设定值以内； 速率≥0.05％FS时，为±0.5%设定值以内； | |
13 | 横梁速度测量范围 | 0.001-500mm/min | |
14 | 横梁速度相对误差 | 速率＜0.01 mm/min时，设定值的±1.0%以内； 速率≥0.01 mm/min时，设定值的±0.2%以内； | |
15 | 恒力、恒变形、恒位移控制范围 | 0.5％～100％FS | |
16 | 恒力、恒变形、恒位移控制范围 | 设定值<10%FS时，设定值 的±1.0%以内 设定值≥10%FS时,设定值的±0.1%以内 | |
17 | 变形速率控制精度 | 速率<0.05%FS时为±2.0%设定值内 速率≥0.05%FS时为±0.5%设定值内 | |
18 | 拉伸空间 | 800mm | 800mm |
19 | 工作环境 | 室温—35℃,相对湿度不超过80% | |
20 | 整机电源 | 单相,220V±10%,50Hz | |
21 | 电机功率 | 3.5KW | |
微机控制电子万能试验机的应用领域与技术分析
Microcomputer-controlled Electronic Universal Testing Machine
Domestic microcomputer-controlled electronic universal testing machines originated in the early 1990s. To enhance the technical level of the company’s products, the company successively introduced advanced foreign technologies, elevating its product technology to a new level.
This product is widely used for mechanical property tests of ｍmbedllic and non-ｍmbedllic materials, including tension, compression, bending, and shearing. Equipped with a wide variety of accessories, it can also be used for mechanical property tests of profiles and components. In fields such as rope, belt, wire, rubber, and plastic—where specimens undergo large deｆormation and tests are conducted at high speeds—it also has very broad application prospects. It is applicable to testing fields such as quality supervision, teaching and scientific research, aerospace, steel ｍmbedllurgy, automotive, and construction engineering and building materials.
Meets the requirements of national standards GB/T 228-2010 Metallic Materials - Tensile Testing at Room Temperatureand GB/T 7314-2005 Metallic Materials - Compression Testing Method.
The machine adopts a double-space portal structure, with tension on the upper side and compression on the lower side, and stepless lifting/lowering of the crossbeam. The transmission part uses an arc synchronous toothed belt and ball screw pair transmission, ensuring stable transmission and low noise. A specially designed synchronous toothed belt reduction system and ball screw pair drive the moving crossbeam of the testing machine, achieving gap-free transmission.
Standard Configuration: One set each of wedge-type tensile accessory and compression accessory.
3.1 Adopts Zhejiang Dongling AC servo driver and AC servo motor, with stable and reliable perｆormance, and protection devices such as overcurrent, overvoltage, overspeed, and overload. The speed regulation ratio can reach 1:100,000.
3.2 Equipped with protection functions including overload, overcurrent, overvoltage, upper and lower displacement limits, and emergency stop.
3.3 Built-in controller ensures the testing machine can realize closed-loop control of parameters such as test force, specimen deｆormation, and crossbeam displacement. It is capable of conducting tests like constant-rate test force, constant-rate displacement, constant-rate strain, constant-rate load cycle, and constant-rate deｆormation cycle. Smooth switching between various control modes is supported.
3.4 At the end of the test, it can manually or automatically return to the initial test position at high speed.
3.5 Achieves true physical zero adjustment, gain adjustment, and automatic gear shifting, zeroing, calibration, and data storage for test force measurement, without any analog adjustment links. The control circuit is highly integrated.
3.6 Electrical control circuits refer to international standards and comply with national electrical standards for testing machines. With strong anti-interference capability, it ensures controller stability and experimental data accuracy.
3.7 Equipped with a network interface for data transmission, storage, print recording, and network transmission printing. It can be connected to the enterprise’s internal LAN or the Internet.
This measurement and control software is used for various tests of ｍmbedls and non-ｍmbedls (e.g., wood-based panels) on microcomputer-controlled electronic universal testing machines, completing real-time measurement and display, real-time control, data processing, and result output in accordance with relevant standards.
(1) Hierarchical Permission Management: Operators of different levels have different operation permissions and accessible menus/content, making operations simple, convenient, and fast for ordinary users while effectively protecting the system.
(2) Real-Time Measurement and Display: Real-time measurement and display of signals such as test force, peak value, displacement, and deｆormation. Realizes real-time acquisition and control under NT mode platｆorms (e.g., Win2000, WinXP) and enables precise timing and high-speed sampling.
(3) Real-Time Curve Display: Real-time screen display of various test curves (e.g., load-deｆormation, load-displacement), allowing free switching of views. Curve zooming in/out is convenient.
(4) Parameter Storage and Setting: Supports computer-based storage, setting, and loading of test parameters. Zeroing, calibration, and other operations are perｆormed via software. Parameters can be easily stored and recalled, enabling convenient switching when one main unit is equipped with multiple sensors (no quantity limit).
(5) Multiple Control Modes: Supports multiple control modes, including open-loop constant-rate displacement and closed-loop modes (constant-rate force, constant-rate stress, etc.). Provides standard reference curves during advanced operators’ debugging of closed-loop parameters, allowing users to observe the impact of parameters on closed-loop effects.
(6) Intelligent Expert System: Features an intelligent setup expert system for test process control modes, providing professional users with an automatic program-controlled programmer. Users can flexibly combine multiple control modes/speeds according to rules to compile custom control programs. The software automatically controls the test process per user settings.
(7) Data Analysis: Uses human-computer interaction for data analysis. Processing methods comply with GB/T 228-2002 Metallic Materials - Tensile Testing at Room Temperature, enabling automatic calculation of elastic modulus, yield strength, specified non-proportional extension strength, etc. Manual intervention improves accuracy; other data processing can follow user-provided standards.
(8) Data Storage and Reprocessing: Test data is stored in text files for easy query and reprocessing via general commercial reporting/word processing software. Facilitates networked data transmission.
(9) Curve Recording and Comparison: Records/saves full-process data curves with a demonstration function for curve reproduction. Supports curve superposition and comparison for analysis.
(10) Customizable Reports: Prints test reports in user-specified ｆormats. Users can select content (basic info, results, curves) to meet diverse needs.
(11) Digital Adjustment and Calibration: Achieves digital zero adjustment and automatic calibration for test force and deｆormation, simplifying operation and enhancing reliability. Parameter settings are stored in files for easy backup/restoration.
(12) Multi-System Compatibility: Applicable to Windows 98, Win2000, WinXP, etc. Operations (test control, crossbeam speed adjustment, parameter input) can be completed via keyboard/mouse for convenience.
(13) External Jog Control: Automatically recognizes and supports external jog control for convenient specimen clamping.
(14) Overload Protection: Features automatic shutdown for overload protection and automatically detects specimen fracture to halt the test.
Note: Depending on user requirements, the above software functions may be added, deleted, or adjusted.
No. | Name | Parameter |
|---|---|---|
1 | Maximum Test Force | 200 kN |
2 | Test Force Measurement Range | 0.4%-100% FS |
3 | Accuracy of Test Force Measurement | Better than ±0.5% of indicated value |
4 | Crossbeam Displacement Measurement Accuracy | 0.001 mm |
5 | Displacement Measurement Accuracy | ±0.5% |
6 | Deｆormation Measurement Range | 0.4%-100% FS |
7 | Deｆormation Measurement Accuracy | ±0.5% |
8 | Deｆormation Resolution | 0.001 mm |
9 | Force Control Rate Adjustment Range | 0.005-5% FS/S |
10 | Relative Error of Force Control Rate | Within ±1% of set value |
11 | Deｆormation Rate Adjustment Range | 0.02-5% FS/S |
12 | Relative Error of Deｆormation Control Rate | Within ±2% of set value when rate < 0.05% FS; within ±0.5% of set value when rate ≥ 0.05% FS |
13 | Crossbeam Speed Measurement Range | 0.001-500 mm/min |
14 | Relative Error of Crossbeam Speed | Within ±1.0% of set value when rate < 0.01 mm/min; within ±0.2% of set value when rate ≥ 0.01 mm/min |
15 | Constant Force/Deｆormation/Displacement Control Range | 0.5%-100% FS |
16 | Constant Force/Deｆormation/Displacement Control Accuracy | Within ±1.0% of set value when set value < 10% FS; within ±0.1% of set value when set value ≥ 10% FS |
17 | Deｆormation Rate Control Accuracy | Within ±2.0% of set value when rate < 0.05% FS; within ±0.5% of set value when rate ≥ 0.05% FS |
18 | Tensile Space | 800 mm × 800 mm |
19 | Working Environment | Room temperature to 35°C, relative humidity ≤ 80% |
20 | Overall Power Supply | Single-phase, 220V±10%, 50Hz |
21 | Motor Power | 3.5 kW |
关键词：微机控制电子万能试验机的应用领域与技术分析 微机控制电子万能试验机 微机控制电子万能试验机厂家
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