Volvo STD 101-0001 Standard
  1. Manuals
  2. Brands
  3. Volvo Manuals
  4. Automobile
  5. STD 101-0001
  6. Standard
Volvo STD 101-0001 Standard

Volvo STD 101-0001 Standard

Digital product-definition data practices
Hide thumbs

Advertisement

Table of Contents

December 2007
Established
The English language version is the original and the reference in case of dispute.
BASIC RULES FOR REPRESENTATION
Digital product-definition data practices
Orientation
This standard is based on the international standard ISO 16792:2006 and the American standard
ASME 14.41-2003.
The technical content of section 3, dealing with the combination of drawing and Digital Shape Model
(DSM), corresponds to version 3 of this standard.
This version differs from version 3 in that the title of the standard has been changed from Digital Shape Model
basis – DSM basis to Digital product-definition data practices, which is equal to the title of ISO 16792. In order to
bring the standard in line with ISO 16792, the contents have been completely re-worked and sections 2 Terms
and definitions, 4 Model-only and 5 Reference to this standard on model have been added.
Contents
1
Scope and field of application
2
Terms and definitions
3
Drawing and Digital Shape Model (DSM) in combination
3.1 Reference on drawing
4
Model-only
4.1 General model requirements
4.2 Digital Shape Model (DSM) requirements
4.3 Common requirements for product-definition data
4.4 General notes and local notes
4.5 Model values and dimensions
4.6 Datum applications
4.7 Geometrical tolerances
4.8 Surface texture
4.9 Other applications of 3-D annotation
5
References to this standard on model
1 Scope and field of application
This standard specifies requirements for the preparation and presentation of digital product-definition data,
hereafter referred to as data sets. It supports two methods of application: model-only, and model and drawing in
digital format.
Some parts of the standard are primarily intended as guidelines for IT engineers, but may also be
of general interest. These parts have been marked with the following symbol in the right-hand
margin of the standard.
The rules are intended for use within all Business units and Business areas of the Volvo Group. However, before
starting using model-only (annotated models), the method shall be approved for use within each organization in
question. For approval, this check list shall be used:
•
Are all necessary functionalities implemented in the concerned CAD systems?
•
Is there a clear business case (e.g. shorter lead-times, increased quality)?
•
Are all down-stream systems and work processes aligned (purchasing, manufacturing, aftermarket, etc.)?
Standard
Volvo Group
Printed copies are uncontrolled. Print date: 2007-12-13
STD 101-0001
4
1(36)
Version
Page

Advertisement

Table of Contents
loading

Related Manuals for Volvo STD 101-0001

Summary of Contents for Volvo STD 101-0001

  • Page 1 These parts have been marked with the following symbol in the right-hand margin of the standard. The rules are intended for use within all Business units and Business areas of the Volvo Group. However, before starting using model-only (annotated models), the method shall be approved for use within each organization in question.

  • Page 2: Terms And Definitions

    Standard STD 101-0001 Volvo Group Version Page NOTE: The figures included in this standard are merely intended to illustrate how annotations shall or can be made in 3-D environment. They are not intended as recommendations when choosing type of tolerance, size of tolerance zone, etc.

  • Page 3: Drawing And Digital Shape Model (Dsm) In Combination

    Standard STD 101-0001 Volvo Group Version Page query means of interrogating a digital element or the relationship between digital elements represented line element supplemental geometry line or curve segment indicating the orientation of a direction-dependent tolerance resolved dimension model value that is rounded to the number of decimal places required for the design...
  • Page 4 Standard STD 101-0001 Volvo Group Version Page Figure 2 gives an example of an orthographic drawing depicting the modelled part and figure 3 shows an axonometric drawing stating the same requirements. Irrespective of the method used to depict the part, orthographic or axonometric, the drawing shall contain a note stating that DSM is basis for dimensions not stated on the drawing, and also give reference to this standard.

  • Page 5: Reference On Drawing

    Standard STD 101-0001 Volvo Group Version Page UNLESS OTHERWISE STATED DIGITAL SHAPE MODEL IS BASIS WHERE DIMENSIONS ARE OMITTED STD 101-0001 SYMBOLS, DESIGNATIONS AND GENERAL DRAWING METHODS STD 101-0005 1234567X Figure 3 – Axonometric engineering drawing to be used along with the DSM 3.1 Reference on drawing...
  • Page 6 Standard STD 101-0001 Volvo Group Version Page • All angular values shall be queried from the model. Exceptions to this are model coordinate system(s) and planes and axes in datum systems. • Annotation in any given annotation plane shall not overlap other annotation in the same annotation plane when the model is viewed perpendicular to the annotation plane.
  • Page 7 Standard STD 101-0001 Volvo Group Version Page Figure 5 – Showing internal features without using a section 4.1.2 Associativity The ability to associate digital elements shall be available and maintained. Associativity information shall be electronically accessible. 4.1.3 Model coordinate systems A DSM shall contain one or more model coordinate systems.
  • Page 8 Standard STD 101-0001 Volvo Group Version Page Query Visual response Figure 6a Figure 6b b) Associativity The represented line element, the tolerance frame and the controlled feature should be organized as an associated group, see figure 6b. 4.1.5 Part features not fully modelled A conventional simplified representation of part features such as threads and splines may be shown using a partial geometry definition, annotations, attributes or a combination thereof.
  • Page 9 Standard STD 101-0001 Volvo Group Version Page 4.1.8 Views and sections on models 4.1.8.1 Views on models Saved views of a DSM may be defined to facilitate presentation of the model and its annotation. A saved view shall have an identifier, be retrievable on demand, contain a model co-ordinate system that denotes the direction of the view relative to the model and may contain one or more of the annotation plane(s), a selected set of annotation, or a selected set of geometry.

  • Page 10: Digital Shape Model (Dsm) Requirements

    Standard STD 101-0001 Volvo Group Version Page Multiple connected cutting planes shall be used for offset sections. See figure 8. Multiple connected cutting planes Figure 8 – DSM with offset section 4.2 Digital shape model (DSM) requirements 4.2.1 General Digital shape models (DSM) represent a part in ideal geometric form at a particular dimensional condition. Unless...

  • Page 11: Common Requirements For Product-Definition Data

    Standard STD 101-0001 Volvo Group Version Page Figure 9 – Thickness indicator for a non-modelled thin part 4.3 Common requirements for product-definition data 4.3.1 General This section establishes the common requirements for the application, display management and query of product definition data.
  • Page 12 Standard STD 101-0001 Volvo Group Version Page General notes: Ra 6,3 +0,3 a) Model with all annotations displayed Figure 10 – Display management Printed copies are uncontrolled. Print date: 2007-12-13...
  • Page 13 Standard STD 101-0001 Volvo Group Version Page b) Model with one type of annotation displayed Figure 7 (continued) General notes: Ra 6,3 +0,3 c) Model with selected annotations displayed Figure 10 (continued) Printed copies are uncontrolled. Print date: 2007-12-13...
  • Page 14 Standard STD 101-0001 Volvo Group Version Page 4.3.2.2 Hard copy For working purpose, a hard copy of any visual display shall be available on demand. This hard copy is for reference only. 4.3.3 Model requirements 4.3.3.1 General The following subsections give requirements for annotation applied to a DSM. These are general requirements, which apply to all types of annotation.
  • Page 15 Standard STD 101-0001 Volvo Group Version Page Visual response (eight associative features) Query b) Pattern of features query Figure 11 (continued) 4.3.3.3 Attributes Attributes are used to capture additional information that is not shown using geometry or in the model annotation. Attributes shall be available on demand. Attributes may be presented using text description, forms or other techniques.
  • Page 16 Standard STD 101-0001 Volvo Group Version Page a) Initial attitude of model geometry and annotation b) Rotated about 90° about the Z axis Figure 12 – Annotation planes relative to model geometry Printed copies are uncontrolled. Print date: 2007-12-13...
  • Page 17 Standard STD 101-0001 Volvo Group Version Page 4.3.3.5 Leader lines Leader lines directed to represented line elements shall terminate with an arrowhead. When an indicated element is a surface, the leader line shall terminate with a dot within the bounds of the surface. Leader lines may terminate on the rim or edge of a feature of size if this provides a clearer understanding of the intention of the annotation.
  • Page 18 Standard STD 101-0001 Volvo Group Version Page Figure 14 – Limited-area indicator 4.3.3.8 Query types The model shall contain information sufficient to satisfy the following query types. a) Model values b) Relationship between model geometry and annotation in either direction, including the following: •...
  • Page 19 Standard STD 101-0001 Volvo Group Version Page c) Model geometry and model features • Model features shall be identifiable by selecting a geometric element of the model feature. • All geometric elements in an associated group of model features shall be identifiable by selecting any geometric element within the group.

  • Page 20: General Notes And Local Notes

    Standard STD 101-0001 Volvo Group Version Page • Upon selection of a datum indicator, the datum target indicators which have the same datum letter shall be highlighted or otherwise distinguished from other entities on the display, see figure 18. Visual response...

  • Page 21: Model Values And Dimensions

    Standard STD 101-0001 Volvo Group Version Page 4.5 Model values and dimensions 4.5.1 General This section establishes the requirements for model-value query, and resolved theoretically exact and radial dimensions, linear and angular distance, and size and limits of dimensions in a data set. It also contains the common requirements for associativity and dimensions on a model or drawing.
  • Page 22 Standard STD 101-0001 Volvo Group Version Page Table 1 – Resolved dimension examples STD 101-0001 Model value Resolved dimension Application example Linear theoretically 88,4100000 … 88,4 88,4 exact dimension (linear TED) Angular 28,5918273 … 28,6 28,6° theoretically exact dimension (angular TED) Ø7,5...
  • Page 23 Standard STD 101-0001 Volvo Group Version Page c) Theoretically exact dimensions should be placed in annotation planes that are parallel with one of the planes of the absolute or a user-defined model co-ordinate system. An example of an exception is the 3x15 basic dimension shown in figure 19.

  • Page 24: Datum Applications

    Standard STD 101-0001 Volvo Group Version Page Figure 20 – Placement and attachment for linear dimensions 4.6 Datum applications This section establishes practices for organizing, attaching and displaying datum indicators, datum target indicators and related information associative with models. Requirements and recommendations for correlating datum features to the coordinate axes of the model space are given.
  • Page 25 Standard STD 101-0001 Volvo Group Version Page 4.6.1.2 Identification of datums Figures 21 and 22 demonstrate symbol attachment methods for identifying datums on a model. The datum indicator should be attached to the surface representing the datum feature. Single extension lines of model feature outlines should not be used for the attachment of datum indicators.
  • Page 26 Standard STD 101-0001 Volvo Group Version Page b) Tolerance frames Figure 21 (continued) e) Identification of restricted area application (integral feature) When a restricted area of a surface is used as datum feature, this limited area of application shall be represented on the model using supplemental geometry.
  • Page 27 Standard STD 101-0001 Volvo Group Version Page 4.6.1.3 Associativity of datum features and design data A query of any datum feature shall permit access to all relevant information for the datum feature. This includes the datum indicator, the size limits (if applicable), any applied geometric tolerance, and the relevant coordinate system.
  • Page 28 Standard STD 101-0001 Volvo Group Version Page a) Placement and attachment Visual response Query b) Datum feature indicator associativity Figure 24 – Pattern of features establish a datum axis b) When two or more co-planar surface features are used to establish a datum plane, the involved model surfaces and any applied tolerance for these surfaces shall be organized as an associated group, see figure 25.
  • Page 29 Standard STD 101-0001 Volvo Group Version Page a) Placement and attachment Visual response Query b) Datum feature indicator associativity Figure 25 – Co-planar surfaces establish a datum plane Printed copies are uncontrolled. Print date: 2007-12-13...

  • Page 30: Geometrical Tolerances

    Standard STD 101-0001 Volvo Group Version Page 4.7 Geometrical tolerances In this section, rules for the connection of the tolerance frames to the toleranced features in 3-D environment are given. Some of these rules differ from the rules stated in...
  • Page 31 Standard STD 101-0001 Volvo Group Version Page Figure 30 - The same example as shown in figure 29 but without stating the size dimension above the tolerance frame. In this case, the ∅ symbol shall be indicated above the tolerance frame 4.7.1.3 A median plane of a width...
  • Page 32 Standard STD 101-0001 Volvo Group Version Page 4.7.2 Examples of geometrical tolerance indications The examples shown in figures 33, 34 and 35 are only examples of indications made in accordance with the rules of this standard and they are not intended to illustrate the complete definition of the parts in question.

  • Page 33: Surface Texture

    Standard STD 101-0001 Volvo Group Version Page Figure 35 4.8 Surface texture This section provides rules for connecting the graphical symbol for surface texture to 3-D model features concerned. Some of the rules differ from the ones given in STD 120-0004 which mainly are intended for the specification of surface texture requirements on orthographic drawings.
  • Page 34 Standard STD 101-0001 Volvo Group Version Page Figure 37 NOTE: This is the same rule as in 2-D The graphical symbol can be attached to the dimension in connection with a feature-of-size dimension. See figure 38. Figure 38 NOTE: This is the same rule as in 2-D.

  • Page 35: Other Applications Of 3-D Annotation

    Standard STD 101-0001 Volvo Group Version Page Query Visual respons e Figure 40 - Direction through supplemental geometry. Figure 41 - Direction through model coordinate Direction of lay perpendicular to the system. Direction of lay parallel to the X- represented line element coordinate axis 4.9 Other applications of 3-D annotation...

  • Page 36: References To This Standard On Model

    Standard STD 101-0001 Volvo Group Version Page Figure 43 – Symbolic representation of a spot weld using 3-D annotation 5 References to this standard on model When a model, but no drawing is used, and the model is created in accordance with the rules given in this...

Table of Contents