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cRIO-9039
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数控编程工艺及加工效率的研究
由于后控板塑件在洗衣机上为外观件,表面光洁度要求较高,所以在模具型腔加工制造过程中必须保证型腔尺寸的公差要求和表面粗糙度要求。对于该模具型腔零件,从内向外主要由以下几部分构成:塑件型腔面、分型面、排气槽、侧抽芯槽、模架面、回程杆垫片槽等。在编制数控编程工艺时,一般按照整体粗加工、分型面半精加工、分型面精加工、型腔面半精加工、型腔面精加工、型腔局部形状清角的工艺思路进行编程,并按照分区域编程的思路,逐渐完成整体零件的编程工作。
图1 洗衣机后控板模具型腔
2.1 整体粗加工刀具的选择
在编制粗加工程序时,粗加工刀具型号的选择直接决定了开粗的加工效率。若开粗刀具选择过小,致使每刀的下刀量较小,而且刀具的进给速度也较小,最终导致工件的加工效率很低。若开粗刀具选择过大,表面上看起来粗加工时间很少,但是开粗效果不理想,本应开粗到位的区域没有开粗到位,需要增加整体中粗程序或大范围的清角程序,这样总体的加工时间也会增加。所以在粗加工刀具选择方面,不但要考虑到工件的整体尺寸大小,还要考虑该零件的材料去除量大小。对于中小型零件来说,原则上把开粗时间 控 制 在 5h 以 内 ,初 步 选 定 开 粗 刀 具 为 直 径 为 32mm的牛鼻刀,刀具定义为D32R0.8mm。
2.2 型腔精加工刀具的选择
在对模具零件型腔进行精加工时,由于模具的型腔面在塑件上为外观面,表面光洁度要求较高,并考虑到模具的型腔面大部分为曲面,所以在精加工刀具选择方面,优先选择球头铣刀进行加工,刀具符号用B及 R 表 示 ,如 直 径 为 20mm 的 球 头 刀 定 义 为B20R10mm。本次研究列出了 3 种精加工刀具选择方案:第 1种方案为大直径球头铣刀(B16R8mm)整体精加工、小直径球头铣刀(B8R4mm)局部清角的编程加工工艺;第 2 种方案为较大直径球头铣刀(B12R6mm)整体光刀、小直径球头铣刀(B8R4mm)清角的编程加工工艺;第3种方案为整体用小直径球头(B8R4mm)刀一次加工到位,如表 1 所示。然后对以下
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194E-A32-3753 32 A 194E Load switch
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IC647HSTESEO15KM eSignature Option for Historian - Enterprise Server 15000 Points (M4 Key)
IC655MDL502RR 12-24Vdc Input, Negative Logic (32 points)
IC694MDL241CA Conformal Coated Input 24 VAC 16 points.
IC756SDV010E-99 DV Draw Development on Solaris Op Sys, English, Version 9.9
MicroLogix 1500/1769 System 1769-OB16 16 POINT 24 VDC SOURCING OUTPUT MODULE
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Distributed I/O 1794-TB3TS 3-WIRE TEMPERATURE TERMINAL BASE - SPRING CLAMP
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RSI Software Products 9301-VIEW3U3 UPGRADE: IN-SUPT: CTRVW TO RSVIEW32 WKS 300/RSLX
RSI Software Products 9358-PLTM2300U2 UPGRADE: IN-SUPT: PLANTMETRICS 10 TO 25 WORKCELL
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IC200PKG014 VersaMax Ethernet NIU starter kit with I/O.
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20G11NE2P7AA0NNNNN PowerFlex 755 AC Packaged Drive
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140CFX00110 Quantum CABLEFAST 端子块接地条, 10位置
294E-FD2P5Z-G3 Variable Frequency Drive
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1492-SPM3C005-N MCB Supplementary Protector 0.5 A
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1783-HMS4S8E4CGN Stratix 5400 16 Port Managed Switch
193-ESM-I-100A-C97 E300/E200 100 Amp Sensing Module
20-750-ENETR PowerFlex 750 EtherNet-IP Adapter
2090-CPWM7DF-14AA12 MP-Series 12m SpeedTec Standard Cable
2098-DSD-150X Ultra 3000 Servo Drive
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GFN-018 Series 90-30 Instructor's Workbook
IC220TBK206 TERMINAL STRIP SET, SPRING STYLE, RELAY ISOLATION
IC647GESM GES:GE SRTP OPC Server
IC647SHR025 "Scheduler Prepay 25+ hours,per hour"
IC693MDL654 5/12 Vdc (TTL) Input, Neg/Pos Logic, (32 points)
IC756HDV000E-98 DV Development - HP/UX Op Sys, English, Version 9.8
MSI-ROLLDEF Roll Map - Defect Mapping Functionality
PLC-5/1771 System 1771-IAN INPUT MODULE, 120V AC, 32 INPUT
Distributed I/O 1790D-T4T0 DNET LDX, 4 INPUT THERMOCOUPLE BSE, TERM BLOCK
Communications 1784-CP CABLE ASSY, 10.5 FT/3.2 M, 1784-KTP, KT, KT2, KL
Operator Interface 2727-MRT10 10M MOBILEVIEW CONNECTION CABLE
Support 9305-RSVADFVCDES SUPT RENEWAL CONTRACT FOR 9305RSVADFVCDE
Support 9515-RSCHM025R SUPT REINSTATEMENT CONTRACT FOR 9515RSCHM025ENE
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1769-RL2 CompactLogix Replacement Part
191E-AND3-CB25C-R 1.6-2.5 A Economy Rev Starter W/Ckt-Bkr
194R-R11 194R Standard Operating Shaft
2090-CPBM7DF-16AF60 MP-Series 60 m Length Cable
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1585J-M8UBJM-6 RJ45 Ethernet Media
1761-L32BBB MicroLogix 1000 32 Point Controller
188-K3C040 Miniature Circuit Breaker 4 A
194L-E32-1751 32 A 194L Load Switch
2090-CPBM6DF-16AA30 TL-Series 30m Power and Brake Cable
2090-XXNFMP-S90 MP-Series 90 m Length Feedback Cable
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GC647PCM003 GlobalCare Complete for Proficy Change Management Server - 3 Concurrent Users
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IC646NTS010 Terminal Services - 10 Pack License
IC647MGP001 Plant Applications Maintenance Gateway Adapter
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IC697MEM731RR Expansion RAM, 128K Bytes, CMOS, 32 Bit (Used w/78X CPUs)
IC800SSI104D2 4.3 amp 115/230 VAC Devicenet S2K servo controller for S-series motors
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Operator Interface 2711-B5A10L1 PV550 MONO KEY&TOUCH, DNET & RS232 PRINT
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Support 9371-EHYD3S SUPT RENEWAL CONTRACT FOR 9371EHYD3
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CBL-38-MP-30 Power Cable, MTR-3S8x Series Servo Motors, 30 Ft.
IC641CTL130 Logicmaster 90-30 to Control 90-30 Upgrade
IC800SLM010N1NE25 100W, 115 VAC SL Servo Motor, 2.5K Quad Encoder
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20DD065A0EYNANANE PowerFlex 700S AC Drive 65 A 50 Hp 20D
20P41AD1K1RA0NNN PowerFlex DC Drive 1162 A
2711P-B10C4A8 PanelView Plus Terminal
280-PWRM24G-M2 ArmorConnect 3-PH Power Media drop cable
NS10-TV00(B)-V1 彩色TFT LCD 分辨率:640×480点, 256色10.4英寸
1492-MCBA360 60 A UL489 Miniature Circuit Breaker
1494V-DR666-A-B-D-E-F NEMA Flange Mtd Rod Switch Disconnect Sw
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1585D-M8UGJM-20 Gigabit Ethernet Media
1756-L85E ControlLogix 40MB controller
1799-OQ10X Embedded I/O 10 Point Expansion Output
194E-FA32E-PD10-PE 194E Load switch
2090-CFBM7DD-CEAF02 2 m Length SpeedTec Flexible Cable
2090-U3AE-D4401 Ultra 3000 1m Interface Cable
BC646MPTS99 GE Compare Unlimited Seat Site License with Proficy GlobalCare Complete
GC647ARC002 GC Reporting Client 2 Pak
HMI-KPN-401 Keypad: 7.4 inch/ TCP Label (QPGCxxx0000)
IC641VUG703 VersaPro Standard Edition to Professional Edition Upgrade
IC647IFPLDV00900M iFIX Plus SCADA 900 I/O Development (M4 Part)
IC660ELB922RR Single-slot PCIM (XT/AT Interface Board),2-channel
IC697ACC801 I/O Cable (96 conductor) for IC697Vxxxxx modules. Five feet long
IC756XDV001CS-925 DataViews Development on Solarisx86, Addt'l User, Simplified Chinese v9.25
FlexLogix System 1794-TB3G 3-WIRE GROUNDED TERMINAL BASE - SCREW CLAMP
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Support 6006-G1DBS SUPT RENEWAL CONTRACT FOR 6006G1DB
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RSI Software Products 9701-VWSS250ADEE RSVIEW SE SERVER 250 DISPLAY (GERMAN)
RSI Software Products 9399-TKTDG RSSERVER TOOLKIT DEVELOPER'S GUIDE
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IC300OCS200 OCS with 4x20 LCD Display, and 32-key tactile feel keypad. Supports up to 4 SmartStack I/O Boards, full ladder instruction set, and CsCAN Networking.
IC752WTA080 Display Station 2000 Series - 10.4" active matrix VGA (640x480), resistive touchscreen, Pentium 850 MHz, 256 MB RAM, 6 GB HDD (min), 300 pt run time CIM PE License WNT
MTR-3T43-H-R-0-M-0RR Servo Motor Metric
ZA81L-0001-0101#C AC line filter rated 10.5 kW for Beta and Alpha series servo amplifiers
20DB070A0ENNANANE PowerFlex 700S AC Drive 70 A 25 Hp 20D
20G1ALC650AN0NNNNN PowerFlex 755 AC Packaged Drive
25B-CTM1 PowerFlex 525 Control Module
2711R-T7T PANELVIEW 800 7-INCH HMI TERMINAL
6SE6420-2UD23-0BA1 3KW
1492-L4-BL IEC Term Blck 6.1x62x35.7mm Spr Clp
1494C-DJ622-A6-B1-D-E 200 A Flange Mtd Cable Switch