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[资料分享] UG模具设计实用技巧

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发表于 2008-9-12 16:52 | 显示全部楼层 |阅读模式
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">ug</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相较于其他软件,在模具行业中(不论设计,拆铜工,还是编程)有着很大的有时……有些在其他软件,改产品,分模要花很长时间的东西,在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">里面可以非常轻松地搞定。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></FONT></P>- t8 u0 W! S# E" E, p
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">当然,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在模具设计中,有着大量的应用技巧,熟练掌握这些技巧,并举一反三,会给你在工作中带来非常大的方便,尤其是在复杂产品的分模过程中,可以少走弯路减少盲目性。遗憾的是,这些技巧在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">书籍里面是看不到的,因为写书的都不是本行业的人,并且经常看到同一例子在不同的书中反复出现,抄来抄去,且花费大量的篇幅去讲一些实际操作中很少用到的东西,真正需要的却没有。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT></P>
+ w% F; l7 m1 D: D8 x< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">因此,下面我们讲</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在实际中的应用技巧,主要是书上所没有的,希望各位能仔细领会其中的含义,以求灵活运用。当然,大家在看这些东西之前,应具备基本的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">造型知识。</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 14pt"><o:p></o:p></SPAN></P>

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 楼主| 发表于 2008-9-12 16:54 | 显示全部楼层
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l1 level1 lfo1; tab-stops: list 21.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-family: 宋体"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>一,<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;一。&nbsp; </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算失败的问题:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></FONT></P>
. Z; I' W/ ^. L& Q< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">UG </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">操作中,经常碰到布尔运算加不上,减不掉,以及裁减,分割失败等问题。尤其是在面比较烂的情况下,分模,取滑块,斜顶经常碰到此类问题,可试着采用以下办法:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>$ Z8 s1 I" P. I0 N
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>1.<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将工具体的面偏移或者移动少许距离来解决。(偏移或移动的距离要不至于影响加工的精度)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
( \7 \3 Z" x! B' f- d< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>2.<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用线框显示目标体,工具体,再做布尔运算(或裁减,分割)若失败,仔细观察,会发现部分的棱边显示为红色,此为问题区域,可将问题区域分割开来(即分成两部分),再作布尔运算,然后抽取问题区域面,缝合,处理,再补丁上去,此法可解决大部分布尔运算失败的问题。(也可将问题面偏置少许来解决)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>7 s# V+ \' d" B
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>3.<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有时,布尔运算失败,可全部作成面,操作面,再缝合成实体。这种方法,可应付几乎所有加减失败的问题,但也最麻烦,实在没招的情况下才建议采用。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
8 T8 T4 D; {/ Z& N- H< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>4.<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用实体缝合的方式来加两个物体,先选共同面,调整公差来缝合。但这种方式会为后续的操作带来麻烦。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
) B( [- q: V. t2 T0 l. g6 O< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">注:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">a. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算若产生多个体,将丢失参数,这也是执行</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">MW/mold tools </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Split_Solid</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">失败的一个原因。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
! z% r% B& `$ x; f< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: 21pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">b.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用片体裁减实体,在实体区域内,片体不能有“边界”,或“面自交”的问题,这可用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Analysis / Examine Geometry<o:p></o:p></FONT></SPAN></FONT></P>
/ o5 {7 @( `& `  ?8 f< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">里的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Face_ Face Intersections </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Sheet _Boundaries</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项检查出来的。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>, O: [  M( D: i2 O; h# G0 F- Z
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>c.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算不能有“零厚度”现象产生。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
* o: |) f9 h3 X9 L  A! ]<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>d.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算中,可以“面-面,……面-实体”。这两个选项在分模中补面非常方便。</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
 楼主| 发表于 2008-9-12 16:58 | 显示全部楼层
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二.</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">UG</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">修剪破面</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></FONT></P>' o7 J4 C9 q4 i# a
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">1.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Analysis / Examine Geometry </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">里的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Face_ Face Intersections </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Sheet _Boundaries</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项,确定边界的数量,以及破孔的具体位置,或自交面的位置。再分别用线框显示,分析边界线。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
$ r4 N8 o) h! J. N2 V0 t< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">采取的措施:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>! b- r* \( s8 U1 _! b3 X
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>A.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面减面:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>, w9 O3 `- g1 {+ p' z# O. ]
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抽取破孔周边面,将其去除参数,然后用布尔运算,面减面的方式,将破孔周边面去掉,再将抽取的面缝合上去(必要时,可将缝合公差稍作调整),也可将抽取的面扩大,或修剪,再缝合。如果布尔运算失败,可将破孔周围的面都做抽取,再布尔运算。后</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Copy</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">已经抽取的面,处理破面。再缝合。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>) _6 k- P- \' N& m. P' P5 M
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">B. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">裁剪片体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
1 [6 B# d! F7 l7 z) N< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-char-indent-count: -1.5"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN><SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">抽取破面或周边的面作备份。用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Trimmed Sheet(</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">修剪的片体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">)</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项,剪掉原几何体中的破面或周边的面。再用备份的面,经编辑处理,再恢复上去逐个缝合。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P># N, A. M1 u1 j2 A/ L  m
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-char-indent-count: -1.5"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman">&nbsp;&nbsp; </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果破面为小孔,可用“自由曲面特征”里的选项,手动做</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">i</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">片体,补上去。如果缝合后仍有破孔,可将缝合公差稍微调大,待作成实体后,用“替换”或者“约束面”等功能来修整。(实体的修整有时比片体方便很多)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>; ^- N4 {( ^" ^% Q; _0 ]/ H" y: S
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-char-indent-count: -1.5"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">C. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将破掉的面修改成另一种颜色,其余的面颜色作成一致。再用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">MW/mold tool / Extract Face Region </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项抽取同颜色的面,打开</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">29</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层,可看到没有了欲删除的面,这样就很容易修补。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>, M( e2 D0 r9 C0 P% k4 t5 c
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-char-indent-count: -1.5"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">D. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有时,由其他软件转过来的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">IGS</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图,曲面已经严重变形,可用轮廓线,手动作面。如有轮廓线断开,可将这些处剪掉,再处理。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
' m/ M# `: j9 d<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">E. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果破面很多,可全部抽取成一个个的散面,再逐个缝合,即可发现问题所在。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>% c5 q: c6 p( T8 ?1 ^
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-char-indent-count: -1.5"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">F. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有很多从其他</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">3D</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">软件转过来的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">STP</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图,分析它为实体,但是仔细观察,却有破洞,这属于几何问题。这时可抽取一个个的单片体,再逐个缝合来解决。也可根据轮廓线,自己手工作面后,再做</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Patch.</FONT></SPAN></FONT></P>
 楼主| 发表于 2008-9-12 16:58 | 显示全部楼层
G.  UG打开其它软件输出的IGS图档,效果都不太好,很多情况下都有片体的变形,可以先用Solidworks软件打开,再另存为x_t格式,输入UG,这时可发现,图形的质量大为改观。
' ^* k* o# X; g4 rH. 有时,可适当加大缝合的公差,人为的将片体缝合成实体,然后在实体中来修改,这样会容易很多。记住,片体若不易修改,可先作成实体,实体若不易修改,可先作成片体。7 T8 g* Z7 ~4 Z8 L
I.  实体修补的工具主要是:补片体(Patch), 简化,替换,约束面( Constrain_ face),删除面。
: j$ B' `; l( p   
) p9 D* s4 y' {8 c' a) c) v   以上这些方法,可灵魂运用。同时,通过观察产品的特征,应用镜像或复制关系来修补破面,效果更好。
# U5 m4 a- a8 j+ I* }" P' D1 F   修补破面本来就是件很麻烦的事情,没有一招是万能的,要具体情况具体处理。一招不行,再用另一招,多学几种办法,有助于打开思路。
发表于 2008-9-25 15:26 | 显示全部楼层
沙发,我是初学者,谢谢大师的指点,谢谢
发表于 2009-1-19 15:59 | 显示全部楼层
怎么就    看不到了呢
发表于 2009-2-16 12:54 | 显示全部楼层
东西不错,有点乱
发表于 2009-2-17 22:00 | 显示全部楼层
顶一下。
发表于 2009-4-1 17:30 | 显示全部楼层
ttttttt
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发表于 2009-8-20 06:54 | 显示全部楼层
说的好,谢谢了
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