Base body

27,00 

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Practical example of the base body of a clamping device. Covers the function-oriented definition and tolerancing of the datum system, the specification of dowel pin holes and threaded holes, as well as the ISO GPS-compliant specification of the eccentric shaft axis.

Also available from the „Clamping device“ assembly: the practical example „Clamping piece“.

When purchasing this product, you will receive a video (step-by-step guide) and a PDF file.

Beschreibung

The base body of a clamping device needs to be specified.

.A functional datum system must be defined (and toleranced).

Tolerances apply to pin connections and threaded holes.

In addition to the clamping area for the workpiece, the axis of the eccentric lever must also be described in accordance to ISO GPS.

Length of explanation video (Step by Step guide) : Approx. 34 min.

 

Variants: No

Difficulty Level: Suitability 1-2

 

Description of the level of difficulty (suitability for the user):

1 – The user has basic knowledge but has not yet used ISO GPS frequently in practice and takes first steps.

2 – The user has basic knowledge but is not proof about using ISO GPS and would like to gain more general confidence.
More „special“ or complex modifiers (these are usually listed in the example description) are applied selectively.

3 – The user has sufficient knowledge, can already use frequently used ISO GPS tools without difficulty,
and would like to deepen knowledge selectively based on typical functional descriptions,
which is usually also product-specific (e.g., snapping features (latching hooks) on a plastic injection-molded part, special demand hole patterns, i.e. multi-level patterns etc.)
used in the example (i.e., listed in the description) (e.g., direction only or certain combinations of dimensional tolerancing, as well as SIM or similar modifications).

4 – The user has extensive knowledge, has been working with ISO GPS for a long time,
and would like to learn about very specific applications or modification operations, which usually describe more complex functional requirements and products.
This requires, for example, situation features, reference elements, filter information, association modifiers etc.

Used specification modifiers

In addition to the commonly used tools (profile, position, datums, etc.), the following modifiers were used:

  • Envelope requirement (Taylor principle)
  • GX modifier – Maximum inscribed size größtes oder maximal einbeschriebenes Element
  • >< – For orientation constraint only (Direction only) modifier
  • CZ – Combined zone (Common zone)
  • UZ – Specified tolerance zone offset (unsymmetrical zone)

Standards

The following standards are helpful or have been used:

  • ISO 129-1      Technical product documentation (TPD) – Presentation of dimensions and tolerances

  • ISO 1101       Geometrical tolerancing – Tolerances of form, orientation, location and run-out

  • ISO 1660       Geometrical tolerancing – Profile tolerancing

  • ISO 14405-1: Dimensional tolerancing – Linear sizes

  • ISO 14405-2 Dimensional tolerancing – Dimensions other than linear or angular sizes

  • ISO 5459       Geometrical tolerancing – Datums and datum systems
  • ISO 22081     Geometrical tolerancing – General geometrical specifications and general size specifications

 

Additional information

This is not a complete specification. For example, the following topics are not covered:

  • Edges of undefined shape (ISO 13715)
  • Indication of surface texture (ISO 1302 bzw. ISO 21920)
  • Data fields in title blocks and document headers (ISO 7200)