{"id":2783,"date":"2018-09-26T03:01:03","date_gmt":"2018-09-26T03:01:03","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=2783"},"modified":"2022-06-10T11:17:43","modified_gmt":"2022-06-10T03:17:43","slug":"7-ways-to-detect-the-positioning-accuracy-of-cnc-machine-tools","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/7-cach-phat-hien-dinh-vi-chinh-xac-cua-may-cong-cu\/","title":{"rendered":"7 c\u00e1ch \u0111\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 CNC"},"content":{"rendered":"
\n

7 c\u00e1ch \u0111\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 CNC<\/h2>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 CNC \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u1ed7i tr\u1ee5c t\u1ecda \u0111\u1ed9 c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 d\u01b0\u1edbi s\u1ef1 \u0111i\u1ec1u khi\u1ec3n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n s\u1ed1. \u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 CNC c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5. M\u00e1y c\u00f4ng c\u1ee5 th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c cho \u0103n b\u1eb1ng tay. \u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi sai s\u1ed1 \u0111\u1ecdc. Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 CNC \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c l\u1ec7nh ch\u01b0\u01a1ng tr\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1, do \u0111\u00f3, \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n s\u1ed1 v\u00e0 sai s\u1ed1 truy\u1ec1n \u0111\u1ed9ng c\u01a1 kh\u00ed.<\/p>\n

CNC l\u00e0 t\u00ean vi\u1ebft t\u1eaft c\u1ee7a Computer Numerically Control. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh c\u00f3 m\u00e3 \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c c\u00e1c l\u1ec7nh k\u00fd hi\u1ec7u kh\u00e1c v\u00e0 gi\u1ea3i m\u00e3 ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00f3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c bi\u1ec3u di\u1ec5n k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. Th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd s\u1ed1 h\u1ecdc, c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n kh\u00e1c nhau \u0111\u01b0\u1ee3c ph\u00e1t ra b\u1edfi thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n vi sai \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c gia c\u00f4ng t\u1ef1 \u0111\u1ed9ng theo h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u c\u1ee7a b\u1ea3n v\u1ebd.<\/p>\n

Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a t\u1eebng b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh d\u01b0\u1edbi s\u1ef1 \u0111i\u1ec1u khi\u1ec3n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n s\u1ed1. \u0110\u1ed9 ch\u00ednh x\u00e1c m\u00e0 m\u1ed7i b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c d\u01b0\u1edbi s\u1ef1 \u0111i\u1ec1u khi\u1ec3n c\u1ee7a l\u1ec7nh ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u00e1nh tr\u1ef1c ti\u1ebfp \u0111\u1ed9 ch\u00ednh x\u00e1c m\u00e0 b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c gia c\u00f4ng c\u00f3 th\u1ec3 t\u1ea1o ra. Do \u0111\u00f3, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a \u0111\u1ecbnh v\u1ecb l\u00e0 m\u1ed9t th\u1eed nghi\u1ec7m quan tr\u1ecdng. C\u00e1c n\u1ed9i dung.<\/p>\n

1. Ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh<\/h2>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng t\u1ea3i tr\u00ean m\u00e1y c\u00f4ng c\u1ee5 v\u00e0 b\u0103ng gh\u1ebf. Theo ti\u00eau chu\u1ea9n qu\u1ed1c gia v\u00e0 c\u00e1c quy \u0111\u1ecbnh c\u1ee7a T\u1ed5 ch\u1ee9c Ti\u00eau chu\u1ea9n h\u00f3a Qu\u1ed1c t\u1ebf (ti\u00eau chu\u1ea9n ISO), vi\u1ec7c ph\u00e1t hi\u1ec7n m\u00e1y c\u00f4ng c\u1ee5 CNC ph\u1ea3i d\u1ef1a tr\u00ean c\u00e1c ph\u00e9p \u0111o laze. Trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 giao thoa k\u1ebf laze, ng\u01b0\u1eddi d\u00f9ng b\u00ecnh th\u01b0\u1eddng c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng thang \u0111o ti\u00eau chu\u1ea9n v\u1edbi k\u00ednh hi\u1ec3n vi \u0111\u1ecdc quang h\u1ecdc \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p \u0111o so s\u00e1nh. Tuy nhi\u00ean, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1ee5ng c\u1ee5 \u0111o ph\u1ea3i cao h\u01a1n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o t\u1eeb m\u1ed9t \u0111\u1ebfn hai c\u1ea5p.<\/p>\n

\u0110\u1ec3 ph\u1ea3n \u00e1nh t\u1ea5t c\u1ea3 c\u00e1c sai s\u1ed1 trong nhi\u1ec1u \u0111\u1ecbnh v\u1ecb, ti\u00eau chu\u1ea9n ISO quy \u0111\u1ecbnh r\u1eb1ng m\u1ed7i \u0111i\u1ec3m \u0111\u1ecbnh v\u1ecb s\u1ebd t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb trung b\u00ecnh v\u00e0 \u0111\u1ed9 ch\u00eanh l\u1ec7ch ph\u00e2n t\u00e1n d\u1ef1a tr\u00ean n\u0103m d\u1eef li\u1ec7u \u0111o v\u00e0 d\u1ea3i ch\u00eanh l\u1ec7ch ph\u00e2n t\u00e1n \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1edfi d\u1ea3i ph\u00e2n t\u00e1n.<\/p>\n

2, ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh<\/h2>\n

D\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra c\u0169ng gi\u1ed1ng nh\u01b0 d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a v\u1ecb tr\u00ed. Ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n chung l\u00e0 \u0111o t\u1ea1i ba v\u1ecb tr\u00ed b\u1ea5t k\u1ef3 g\u1ea7n \u0111i\u1ec3m gi\u1eefa v\u00e0 hai \u0111\u1ea7u c\u1ee7a m\u1ed7i h\u00e0nh tr\u00ecnh t\u1ecda \u0111\u1ed9. M\u1ed7i v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c di chuy\u1ec3n nhanh ch\u00f3ng v\u00e0 vi\u1ec7c \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i 7 l\u1ea7n trong c\u00f9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n. Gi\u00e1 tr\u1ecb v\u1ecb tr\u00ed d\u1eebng \u0111\u01b0\u1ee3c \u0111o v\u00e0 thu \u0111\u01b0\u1ee3c ch\u00eanh l\u1ec7ch \u0111\u1ecdc l\u1edbn nh\u1ea5t. L\u1ea5y m\u1ed9t n\u1eeda s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 nh\u1ea5t gi\u1eefa ba v\u1ecb tr\u00ed, c\u00e1c d\u1ea5u t\u00edch c\u1ef1c v\u00e0 ti\u00eau c\u1ef1c \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o nh\u01b0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i c\u1ee7a c\u00e1c t\u1ecda \u0111\u1ed9, l\u00e0 ch\u1ec9 s\u1ed1 c\u01a1 b\u1ea3n nh\u1ea5t ph\u1ea3n \u00e1nh \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u1ed9 ch\u00ednh x\u00e1c chuy\u1ec3n \u0111\u1ed9ng tr\u1ee5c.<\/p>\n

3, ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u1ea3 v\u1ec1 \u0111i\u1ec3m g\u1ed1c chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh<\/h2>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c tr\u1ea3 v\u1ec1 g\u1ed1c th\u1ef1c ch\u1ea5t l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i c\u1ee7a m\u1ed9t \u0111i\u1ec3m \u0111\u1eb7c bi\u1ec7t tr\u00ean tr\u1ee5c t\u1ecda \u0111\u1ed9, v\u00ec v\u1eady ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n c\u1ee7a n\u00f3 ho\u00e0n to\u00e0n gi\u1ed1ng \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i.<\/p>\n

4. Ph\u00e1t hi\u1ec7n l\u1ed7i ng\u01b0\u1ee3c c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng<\/h2>\n

Sai s\u1ed1 ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u01b0\u1ee3ng t\u1ed5n th\u1ea5t, bao g\u1ed3m v\u00f9ng ch\u1ebft ng\u01b0\u1ee3c c\u1ee7a v\u1ecb tr\u00ed truy\u1ec1n \u0111\u1ed9ng (ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9ng c\u01a1 servo, \u0111\u1ed9ng c\u01a1 servo v\u00e0 \u0111\u1ed9ng c\u01a1 b\u01b0\u1edbc) tr\u00ean chu\u1ed7i cung c\u1ea5p tr\u1ee5c t\u1ecda \u0111\u1ed9 v\u00e0 m\u1ed7i c\u1eb7p truy\u1ec1n chuy\u1ec3n \u0111\u1ed9ng c\u01a1 h\u1ecdc A to\u00e0n di\u1ec7n ph\u1ea3n \u00e1nh c\u1ee7a c\u00e1c l\u1ed7i nh\u01b0 ph\u1ea3n \u1ee9ng d\u1eef d\u1ed9i v\u00e0 bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i. Sai s\u1ed1 c\u00e0ng l\u1edbn th\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i c\u00e0ng th\u1ea5p.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n l\u1ed7i \u0111\u1ea3o ng\u01b0\u1ee3c l\u00e0 di chuy\u1ec3n m\u1ed9t kho\u1ea3ng c\u00e1ch v\u1ec1 ph\u00eda tr\u01b0\u1edbc ho\u1eb7c ph\u00eda sau trong h\u00e0nh tr\u00ecnh c\u1ee7a tr\u1ee5c t\u1ecda \u0111\u1ed9 \u0111o v\u00e0 s\u1eed d\u1ee5ng v\u1ecb tr\u00ed d\u1eebng l\u00e0m tham chi\u1ebfu, sau \u0111\u00f3 \u0111\u01b0a ra m\u1ed9t gi\u00e1 tr\u1ecb l\u1ec7nh di chuy\u1ec3n c\u1ee5 th\u1ec3 theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng \u0111\u1ec3 l\u00e0m cho n\u00f3 di chuy\u1ec3n m\u1ed9t kho\u1ea3ng c\u00e1ch. . Sau \u0111\u00f3, ch\u1ea1y c\u00f9ng m\u1ed9t qu\u00e3ng \u0111\u01b0\u1eddng theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i v\u00e0 \u0111o s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa v\u1ecb tr\u00ed d\u1eebng v\u00e0 v\u1ecb tr\u00ed tham chi\u1ebfu. Ph\u00e9p \u0111o \u0111\u00e3 th\u1ef1c hi\u1ec7n nhi\u1ec1u l\u1ea7n (th\u01b0\u1eddng l\u00e0 b\u1ea3y l\u1ea7n) t\u1ea1i ba \u0111i\u1ec3m g\u1ea7n \u0111i\u1ec3m gi\u1eefa v\u00e0 c\u1ea3 hai \u0111i\u1ec3m cu\u1ed1i c\u1ee7a h\u00e0nh tr\u00ecnh, v\u00e0 gi\u00e1 tr\u1ecb trung b\u00ecnh t\u1ea1i m\u1ed7i v\u1ecb tr\u00ed thu \u0111\u01b0\u1ee3c v\u00e0 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t trong s\u1ed1 c\u00e1c gi\u00e1 tr\u1ecb trung b\u00ecnh thu \u0111\u01b0\u1ee3c l\u00e0 gi\u00e1 tr\u1ecb sai s\u1ed1 ng\u01b0\u1ee3c .<\/p>\n

5. Ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a b\u00e0n quay<\/h2>\n

C\u00e1c c\u00f4ng c\u1ee5 \u0111o bao g\u1ed3m th\u00e1p ph\u00e1o ti\u00eau chu\u1ea9n, kh\u1ed1i \u0111a di\u1ec7n g\u00f3c, c\u00e1ch t\u1eed h\u00ecnh tr\u00f2n v\u00e0 b\u1ed9 chu\u1ea9n tr\u1ef1c (collimator), v.v., c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn t\u00f9y theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3. Ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u00e0 l\u00e0m cho b\u00e0n ti\u1ebfn v\u1ec1 ph\u00eda tr\u01b0\u1edbc (ho\u1eb7c \u0111\u1ea3o ng\u01b0\u1ee3c) m\u1ed9t g\u00f3c v\u00e0 d\u1eebng, kh\u00f3a v\u00e0 v\u1ecb tr\u00ed. S\u1eed d\u1ee5ng v\u1ecb tr\u00ed n\u00e0y l\u00e0m tham chi\u1ebfu, sau \u0111\u00f3 nhanh ch\u00f3ng xoay b\u00e0n theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng v\u00e0 \u0111o sau m\u1ed7i 30 l\u1ea7n kh\u00f3a. M\u1ed7i v\u00f2ng quay thu\u1eadn v\u00e0 quay ng\u01b0\u1ee3c \u0111\u01b0\u1ee3c \u0111o trong m\u1ed9t tu\u1ea7n v\u00e0 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t c\u1ee7a s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa g\u00f3c quay th\u1ef1c t\u1ebf c\u1ee7a m\u1ed7i v\u1ecb tr\u00ed \u0111\u1ecbnh v\u1ecb v\u00e0 gi\u00e1 tr\u1ecb l\u00fd thuy\u1ebft (gi\u00e1 tr\u1ecb l\u1ec7nh) l\u00e0 sai s\u1ed1 ph\u00e2n chia. b\u1ea3ng, n\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t v\u1ecb tr\u00ed m\u1ee5c ti\u00eau c\u1ee9 sau 30, \u0111\u1ed1i v\u1edbi m\u1ed7i v\u1ecb tr\u00ed m\u1ee5c ti\u00eau \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed nhanh ch\u00f3ng 7 l\u1ea7n t\u1eeb c\u00e1c h\u01b0\u1edbng t\u00edch c\u1ef1c v\u00e0 ti\u00eau c\u1ef1c, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa khu v\u1ef1c v\u00e0 v\u1ecb tr\u00ed m\u1ee5c ti\u00eau th\u1ef1c s\u1ef1 \u0111\u1ea1t \u0111\u01b0\u1ee3c, v\u00e0 sau \u0111\u00f3 theo GB10931-89 Ph\u01b0\u01a1ng ph\u00e1p ch\u1ec9 \u0111\u1ecbnh trong \u201cPh\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a m\u00e1y \u0111i\u1ec1u khi\u1ec3n k\u1ef9 thu\u1eadt s\u1ed1\u201d t\u00ednh to\u00e1n \u0111\u1ed9 l\u1ec7ch v\u1ecb tr\u00ed trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n, hi\u1ec7u s\u1ed1 gi\u1eefa gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t c\u1ee7a t\u1ea5t c\u1ea3 \u0111\u1ed9 l\u1ec7ch v\u1ecb tr\u00ed trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n v\u00e0 t\u1ed5ng c\u1ee7a t\u1ea5t c\u1ea3 \u0111\u1ed9 l\u1ec7ch v\u1ecb tr\u00ed trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n. \u0110\u00f3 l\u00e0 l\u1ed7i \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a b\u00e0n quay CNC.<\/p>\n

Xem x\u00e9t m\u00e1y bi\u1ebfn \u00e1p ki\u1ec3u kh\u00f4 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf, n\u00f3i chung c\u1ea7n \u0111o m\u1ed9t s\u1ed1 \u0111i\u1ec3m g\u00f3c b\u1eb1ng nhau nh\u01b0 0, 90, 180, 270, v.v. v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c \u0111i\u1ec3m n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n th\u00eam m\u1ed9t c\u1ea5p. so v\u1edbi c\u00e1c v\u1ecb tr\u00ed g\u00f3c kh\u00e1c.<\/p>\n

6. Ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1eadp ch\u1ec9 m\u1ee5c l\u1eb7p l\u1ea1i c\u1ee7a b\u00e0n quay<\/h2>\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i ba l\u1ea7n \u1edf ba v\u1ecb tr\u00ed trong m\u1ed9t tu\u1ea7n c\u1ee7a b\u00e0n quay, v\u00e0 vi\u1ec7c ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng thu\u1eadn v\u00e0 ngh\u1ecbch t\u01b0\u01a1ng \u1ee9ng. Gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t c\u1ee7a s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c l\u1ea7n \u0111\u1ecdc v\u00e0 gi\u00e1 tr\u1ecb l\u00fd thuy\u1ebft c\u1ee7a v\u1ecb tr\u00ed t\u01b0\u01a1ng \u1ee9ng. N\u1ebfu \u0111\u00f3 l\u00e0 b\u00e0n quay CNC, c\u1ee9 30 l\u1ea7n l\u1ea5y m\u1ed9t \u0111i\u1ec3m \u0111o l\u00e0m v\u1ecb tr\u00ed m\u1ee5c ti\u00eau v\u00e0 th\u1ef1c hi\u1ec7n n\u0103m l\u1ea7n \u0111\u1ecbnh v\u1ecb nhanh cho m\u1ed7i v\u1ecb tr\u00ed m\u1ee5c ti\u00eau theo h\u01b0\u1edbng d\u01b0\u01a1ng v\u00e0 h\u01b0\u1edbng \u00e2m t\u01b0\u01a1ng \u1ee9ng, \u0111\u1ed3ng th\u1eddi \u0111o s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa v\u1ecb tr\u00ed \u0111\u1ebfn th\u1ef1c t\u1ebf v\u00e0 v\u1ecb tr\u00ed m\u1ee5c ti\u00eau. \u0110\u00f3 l\u00e0, \u0111\u1ed9 l\u1ec7ch v\u1ecb tr\u00ed v\u00e0 sau \u0111\u00f3 t\u00ednh \u0111\u1ed9 l\u1ec7ch chu\u1ea9n theo ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong GB10931-89, b\u1eb1ng s\u00e1u l\u1ea7n gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t c\u1ee7a \u0111\u1ed9 l\u1ec7ch chu\u1ea9n c\u1ee7a m\u1ed7i \u0111i\u1ec3m \u0111o, l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1eadp ch\u1ec9 m\u1ee5c l\u1eb7p l\u1ea1i c\u1ee7a \u0111i\u1ec1u khi\u1ec3n s\u1ed1 b\u00e0n xoay.<\/p>\n

7. Ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u1edf v\u1ec1 \u0111i\u1ec3m g\u1ed1c c\u1ee7a b\u00e0n quay<\/h2>\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u00e0 th\u1ef1c hi\u1ec7n quay l\u1ea1i \u0111i\u1ec3m g\u1ed1c t\u1eeb 7 v\u1ecb tr\u00ed t\u00f9y \u00fd, \u0111o v\u1ecb tr\u00ed d\u1eebng v\u00e0 s\u1eed d\u1ee5ng s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t \u0111\u01b0\u1ee3c \u0111\u1ecdc l\u00e0m \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a \u0111i\u1ec3m g\u1ed1c.<\/p>\n

C\u1ea7n ch\u1ec9 ra r\u1eb1ng vi\u1ec7c ph\u00e1t hi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb hi\u1ec7n t\u1ea1i \u0111\u01b0\u1ee3c \u0111o trong \u0111i\u1ec1u ki\u1ec7n nhanh v\u00e0 \u0111\u1ecbnh v\u1ecb. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 m\u00e1y c\u00f4ng c\u1ee5 CNC c\u00f3 h\u1ec7 th\u1ed1ng c\u1ea5p li\u1ec7u kh\u00f4ng t\u1ed1t l\u1eafm, c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb kh\u00e1c nhau s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c khi \u0111\u1ecbnh v\u1ecb v\u1edbi c\u00e1c t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u kh\u00e1c nhau. Ngo\u00e0i ra, k\u1ebft qu\u1ea3 \u0111o \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 tr\u1ea1ng th\u00e1i l\u00e0m vi\u1ec7c c\u1ee7a tr\u1ee5c t\u1ecda \u0111\u1ed9. Hi\u1ec7n t\u1ea1i, h\u1ea7u h\u1ebft c\u00e1c m\u00e1y c\u00f4ng c\u1ee5 \u0111i\u1ec1u khi\u1ec3n s\u1ed1 \u00e1p d\u1ee5ng h\u1ec7 th\u1ed1ng v\u00f2ng b\u00e1n k\u00edn v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn ph\u00e1t hi\u1ec7n v\u1ecb tr\u00ed ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean \u0111\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng, t\u1ea1o ra sai s\u1ed1 t\u1eeb 0,01 \u0111\u1ebfn 0,02 mm trong h\u00e0nh tr\u00ecnh 1 m. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ea1. \u0110\u00e2y l\u00e0 l\u1ed7i do gi\u00e3n nhi\u1ec7t, m\u1ed9t s\u1ed1 m\u00e1y s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p k\u00e9o c\u0103ng tr\u01b0\u1edbc (si\u1ebft tr\u01b0\u1edbc) \u0111\u1ec3 gi\u1ea3m va \u0111\u1eadp.<\/p>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb l\u1eb7p l\u1ea1i c\u1ee7a m\u1ed7i tr\u1ee5c t\u1ecda \u0111\u1ed9 ph\u1ea3n \u00e1nh ch\u1ec9 s\u1ed1 ch\u00ednh x\u00e1c c\u01a1 b\u1ea3n nh\u1ea5t c\u1ee7a tr\u1ee5c, ch\u1ec9 s\u1ed1 n\u00e0y ph\u1ea3n \u00e1nh \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u1ed9 ch\u00ednh x\u00e1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a tr\u1ee5c, v\u00e0 kh\u00f4ng th\u1ec3 cho r\u1eb1ng m\u00e1y c\u00f4ng c\u1ee5 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00e9m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1ed5n \u0111\u1ecbnh cho s\u1ea3n xu\u1ea5t. Hi\u1ec7n nay, do s\u1ed1 l\u01b0\u1ee3ng ch\u1ee9c n\u0103ng ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n s\u1ed1, c\u00e1c l\u1ed7i h\u1ec7 th\u1ed1ng nh\u01b0 l\u1ed7i t\u00edch l\u0169y cao \u0111\u1ed9 v\u00e0 l\u1ed7i ph\u1ea3n x\u1ea1 d\u1eef d\u1ed9i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00f9 \u0111\u1eafp cho \u0111\u1ed9 ch\u00ednh x\u00e1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u1ed7i kim phun ng\u1ed3i. Ch\u1ec9 kh\u00f4ng tr\u1ea3 \u0111\u01b0\u1ee3c l\u1ed7i ng\u1eabu nhi\u00ean v\u00e0 l\u1eb7p l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb. N\u00f3 ph\u1ea3n \u00e1nh sai s\u1ed1 ng\u1eabu nhi\u00ean tuy\u1ec7t \u0111\u1ed1i c\u1ee7a c\u01a1 c\u1ea5u d\u1eabn \u0111\u1ed9ng ngu\u1ed3n c\u1ea5p d\u1eef li\u1ec7u. N\u00f3 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa b\u1eb1ng b\u00f9 h\u1ec7 th\u1ed1ng CNC. Khi ph\u00e1t hi\u1ec7n ra ngo\u00e0i dung sai, ch\u1ec9 th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ed1t chu\u1ed7i d\u1eabn \u0111\u1ed9ng c\u1ea5p li\u1ec7u. V\u00ec v\u1eady, n\u1ebfu m\u00e1y c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u00e9p ch\u1ecdn, t\u1ed1t h\u01a1n n\u00ean ch\u1ecdn m\u00e1y c\u00f3 \u0111\u1ed9 l\u1eb7p l\u1ea1i cao.<\/p><\/div>\n

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7 Ways to Detect the Positioning Accuracy of CNC Machine Tools The positioning accuracy of CNC machine tools refers to the positional accuracy that can be achieved by the movement of each coordinate axis of the machine tool under the control of the numerical control device. The positioning accuracy of CNC machine tools can be…<\/p>","protected":false},"author":1,"featured_media":2787,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/141d2f_812cc2c1f60145259ac5a59d92679858mv2-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/2783"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=2783"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/2783\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/2787"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=2783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=2783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=2783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}