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1、. - E I A AB3-D 6 m 3234600 O000040 L M A Y 1 9 8 6 AUTOMATION BULLETIN NQ. 3-14 GLOSSARY OF TERMS F O R NUMERICALLY CONTROLLED M A C H I N E S Engneenng Deparment ELECTRONIC 1NDUSTWlES ASSOClATiOFM Copyright Government Electronics % Vocabulary ARC, COUNTERCLOCKWISE (2-DIMENSIONAL) An arc generated
2、by the coordinated motion of two axes in which curvature of the path of the tool with respect to the workpiece is counterclockwise, when viewing the plane of motion in the negative direction of the perpen- di cul ar axi s. ARC, COUNTERCLOCKWISE (3-DIMENSIONAL) An arc generated by the coordinated mot
3、ion of three axes . in which the curvature of the path of the tool with respect to the workpiece is counterclockwise when viewed along a line splitting the first octant (see line LO in Figure 1) when viewed in the negativeldirection of the three axes. This line has angles = cos- (i/ 3 ) with all axe
4、s (See Figure 1, A = B = Cl. APT Acronym for Automatically Programmed Tools. Name applied to the APT part programming .language and the APT. language processor. Standards for APT are established by the ANSI X3J7 Committee. AXIS COMPENSATION A method of correcting for position errors by applying meas
5、ured values. AXIS INHIBIT The ability to prevent the movement of the selected axis. a Reference Standard E IAr.4?4 Copyright Government Electronics also referred to as Distributed . Numerical Control. NOTE: Direct numerical control systems typically have additional provisions for collection, display
6、, or editing of part programs, operator instructions, or data related to the numerical control process. DISPLAY, COMMAND Display of the position desired as derived from the system or its input data DISPLAY, POSITION DisDlay of the position achieved by the system as measured from a transducer DWELL A
7、 time delay of preprogrammable established not cyclic or sequential; it does not const interlock or hold ANSI X3.12-1970 IS0 2806 durat ion, tute an . . Copyright Government Electronics the control retains no information on the location of any previously established zeroes FMS (FLEXIBLE MANUFACTURIN
8、G SYSTEM) An arrangement of machines (usually numerical control machining centers with tool changers) interconnected by a transport system. machine on pallets or other interface units so that work- machine registration is accurate, rapid, and automatic. A central computer controls both machines and
9、transport system. Flexible manufacturing systems sometimes process several different. workpieces at any one time. The transporter carries work to the FORMAT CLASSIFICATION Summary of codes used to identify the format and consisting of the three following parts.: Format classification short- hand, fo
10、rmat classification detailed shorthand, itemized data of the format contents and machine specifications Reference St an dard NBSIR-81-2340 Copyright Government Electronics individually or in combination on milling or drilling machines TOOL FUNCTION A command identifying a tool. to identify a tool of
11、fset NOTE: It may also be used TOOL LENGTH OFFSET An incremental displacement in the axial direction of the tool. NOTE: Typically used on milling and drilling machines TRAILING ZERO SUPPRESSION A feature of a numerical control system which allows zero characters to the right (lowest significant digi
12、ts) of the right most non-zero character in each word of a machine . program to be omitted Reference Standard IS0 2806 IS0 2806 IS0 2806 Copyright Government Electronics & Information Technology Association Provided by IHS under license with GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie
13、Not for Resale, 03/31/2007 00:00:55 MDTNo reproduction or networking permitted without license from IHS -,-,- . . . . . I - . . . .-. E I A AB3-D 86 m 3234b00 0000065 b m 24 Vocabulary o Reference Stan dard TYPE 1 DATA EIA-SP-1798 9/16/85 Consists of machine programs formatted in accordance with ANS
14、I/EIA RS-274-D, “Interchangeable Variable Block Data Format for Positioning, Contouring, and Contouring/ Positioning Numerically Controlled Machines“, or in IS0 6983 Parts 1, 2, and 3. The coding of Type 1 data shall be in accordance with ANSI/EIA RS-358-B, “Subset of American National Code for Info
15、rmation Interchange for Numerical Machine Control Perforated Tape“, or IS0 6983 Part 1, Annex A. TYPE 2 DATA Consists of machine Set-up, initialization or opera- tional parameter data formatted in accordance with the operational statements defined in EIA 528 (when issued). Type 2 data excludes Type
16、1 data. data shall be in accordance with ANSI Standard X3.4-1968, “USA Standard Code for Information Interchange or IS0 The coding of Type 2 , 646, structured for even parity. EIA-SP-1798 9/ 16/ 85 Copyright Government Electronics & Information Technology Association Provided by IHS under license wi
17、th GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/31/2007 00:00:55 MDTNo reproduction or networking permitted without license from IHS -,-,- I v . - ._ . - . . . E I A AB3-D 86 = 323VbOO 00000bb 8 m - Vocabulary 6 VARIABLE BLOCK FORMAT 25 Reference Stan dard A block for
18、mat in which the order of the words is specified but in which a particular word need only appear when specifying a new value, so that the number of the words in the block varies VECTORIAL FEED RATE IS0 2806 The feed rate obtained by the vectorial addition of two or more axis feed rates Copyright Gov
19、ernment Electronics & Information Technology Association Provided by IHS under license with GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/31/2007 00:00:55 MDTNo reproduction or networking permitted without license from IHS -,-,- 26 Vocabulary II w II W IND-UP Lost moti
20、on in a mechanized system which is proportiona to the force or torque applied WORD A character string or a bit string cons NOTE: The set o f characters 10692 is a a command for a machine element to move inches from a specified zero. WORD ADDRESS FORMAT A block format in which every word must dered a
21、s an entity. word which may give to a point 10.692 O Reference Standard contain an address , Copyright Government Electronics & Information Technology Association Provided by IHS under license with GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/31/2007 00:00:55 MDTNo re
22、production or networking permitted without license from IHS -,-,- - -. . r . _ _i -= E I A AB3-D 8b W 3234b00 00000b8 I E S I Vocabulary , 27 A notation which indicates that the number enclosed in primes is a hexadecimal (base 16) value Reference St andard EIA 474 Copyright Government Electronics &
23、Information Technology Association Provided by IHS under license with GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/31/2007 00:00:55 MDTNo reproduction or networking permitted without license from IHS -,-,- . - , : . . . _- - - - * E I A AB3-D 8b = 323i.lb00 O O O O O
24、b 3 = ,-. e 1 Vocabulary ZERO OFFSET . 28 A characteristic of a numerical control system that permits the origin of the numerical control measuring system to be shifted over a specified range with respect to the machine datum, the location of the permanent origin being retained in the numerical cont
25、rol system Reference S t an dard IS0 2806 Copyright Government Electronics & Information Technology Association Provided by IHS under license with GEIA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/31/2007 00:00:55 MDTNo reproduction or networking permitted without license from IHS -,-,-