6FC5210-0DA10-0AA0
力的測(cè)試系統(tǒng)原理與方法
電磁沖壓機(jī)的瞬態(tài)測(cè)試系統(tǒng)主要由三部分組成，即壓力傳感器、放大單元和記錄檢測(cè)單元，其測(cè)試系統(tǒng)原理如圖5所示。
[img]200611920261642683.gif[/img]
測(cè)試前，先對(duì)壓力傳感器進(jìn)行靜態(tài)和動(dòng)態(tài)標(biāo)定，以10kN電磁沖壓機(jī)為例，傳感器的靜、動(dòng)態(tài)標(biāo)定系數(shù)KF分別為0.07258V/kN和0.07351V/kN，相對(duì)誤差為1.3%，因此，可以認(rèn)為，壓力傳感器具有相同的靜動(dòng)態(tài)輸出特性。測(cè)試時(shí)，將傳感器固定在直線電機(jī)驅(qū)動(dòng)沖壓機(jī)的底座上，進(jìn)行沖壓，當(dāng)傳感器受到壓力機(jī)的瞬態(tài)作用后，立即產(chǎn)生一微弱的脈沖信號(hào)，該信號(hào)經(jīng)過放大、轉(zhuǎn)換、檢測(cè)處理后，變成所需的瞬態(tài)力波形，該波形通過顯示器能直接顯示出該瞬態(tài)力的大小。
作為輔助數(shù)據(jù)，在沖壓機(jī)桿頂端安裝了一只加速度傳感器，利用瞬態(tài)力信號(hào)與加速度信號(hào)的對(duì)應(yīng)關(guān)系，便可以很方便地將噪聲信號(hào)與瞬態(tài)力信號(hào)區(qū)分開來。圖6是10KN直線電機(jī)驅(qū)動(dòng)沖壓機(jī)沖力的測(cè)試曲線。
[img]200611920263728074.gif[/img]
（二）測(cè)試結(jié)果
力的測(cè)試如上所述，結(jié)果見表1。溫度的測(cè)試，我們用熱電偶分別將其放在線圈、鐵心、機(jī)身、軸等處的7個(gè)點(diǎn)上，然后用溫度測(cè)試儀進(jìn)行檢測(cè)（見圖5）。我們共測(cè)取了7個(gè)點(diǎn)的溫度，當(dāng)時(shí)室溫為30℃，表中所記電機(jī)線圈、次級(jí)溫度為1h后的穩(wěn)定溫度。電能的測(cè)量是采用電表進(jìn)行的。表1為10kN電磁壓力機(jī)與機(jī)械式壓力機(jī)的一些測(cè)試數(shù)據(jù)的對(duì)比。
另外，從目前小批量生產(chǎn)來看，電磁沖壓機(jī)的制造成本也比機(jī)械沖壓機(jī)低。
ABB 3HAB8802-1 DSQC 266T Drive unit
ABB 3HAA3573-AAA DSQC 300 Board - Computer
ABB 3HAB2210-1 DSQC 300 Board - Computer
ABB 3HAB2233-1 DSQC 300 Board - Computer
ABB 6369901-380 DSQC 300 Board - Computer
ABB 3HAA3573-ABA DSQC 301 Programming board
ABB 3HAB2209-1 DSQC 306 Computer board
ABB 6369901-298 DSQC 306 Computer board
ABB E3HAB2209-1 DSQC 306 Computer board
ABB 3HAB3700-1 DSQC 313 Serial measurement board
ABB 3HAB4259-1 DSQC 313 Serial measurement board
ABB 3HAC9522-1 DSQC 313 Serial Measurement Board
ABB 3HAB2215-1 DSQC 314A Rectifier
ABB 3HAB2216-1 DSQC 314B Rectifier
ABB 3HAB2231-1 DSQC 314C Rectifier DC link
ABB 6369901-336 DSQC 314C Rectifier DC link
ABB E3HAB2231-1 DSQC 314C Rectifier DC link
ABB 3HAB2214-1 DSQC 315 Combi I/O
ABB 3HAB2219-1 DSQC 316 Computer board
ABB 3HAB2209-1 DSQC 317 Memory expansion board
ABB 3HAB2233-1 DSQC 322 Robot computer
ABB 3HAB5956-1 DSQC 323 Memory expansion board
ABB 3HAB5957-1 DSQC 324 Memory expansion board
ABB 3HAB2241-1 DSQC 325 Main computer
ABB 3HAB2242-1 DSQC 326 Robot computer
ABB 3HAB7230-1 DSQC 327 Analogue Digital Combi I/O
ABB 3HAB7229-1 DSQC 328 Digital 24 VDC I/O
ABB 3HAB7215-1 DSQC 331 Panel unit
ABB 3HAC17973-1 DSQC 332 Digital relay I/O
ABB 3HAB5845-1 DSQC 334 Power supply
ABB 3HAB6182-1 DSQC 335 Robot computer
ABB 3HNE00001-1 DSQC 336 Network board NIOC-01
ABB 3HAB8101-1 DSQC 345A Rectifier
ABB 3HAB8101-2 DSQC 345B Rectifier
ABB 3HAB8101-3 DSQC 345C Rectifier
ABB 3HAB8101-4 DSQC 345D Rectifier
ABB 3HAB8101-14 DSQC 345E Rectifier
ABB 3HAB8101-5 DSQC 346A Drive unit
ABB 3HAB8101-6 DSQC 346B Drive unit
ABB 3HAB8101-7 DSQC 346C Drive unit
ABB 3HAB8101-11 DSQC 346E Drive unit
ABB 3HAB8101-8 DSQC 346G Drive unit
ABB 3HAB8101-13 DSQC 346U Drive unit
ABB 3HNE00957-1 DSQC 350 Remote I/O
ABB 3HNE00065-1 DSQC 354 Encoder interface
DSQC 355 I/O Board
ABB 3HAB8101-10 DSQC 358C Drive unit / Rectifier
ABB 3HAB8101-12 DSQC 358E Drive unit / Rectifier
ABB 3HAB8101-15 DSQC 358F Driveunit / Rectifier
ABB 3HAB8101-16 DSQC 358G Drive unit / Rectifier
ABB 3HAC0373-1 DSQC 361 Main computer
ABB 3HAC1462-1 DSQC 363 Robot computer
