The term "metal-working" should be understood as covering the working of other materials unless the context requires otherwise.
The term "kind of operation" and similar expressions relate to such metal-working operations as boring, drilling, milling and grinding.
The term "kind of machine" means a machine designed for a particular kind of metal-working operation (e.g. a lathe).
The term "form of machine" means a machine of a particular kind adapted or arranged for a particular way of working or for particular kind adapted or arranged for a particular work, e.g. face-plate lathe, tailstock lathe, turret lathe).
The term "different machines" is to be understood as covering different forms of machine for performing the same type of metal-working operation, e.g. vertical and horizontal boring machines.
Sub-class Fulltext... Hierarchy... Expanded...B23Q comprises features, specific to machine tools, which relate to a requirement or problem of a nature which is not peculiar to a particular kind of machine tool, e.g. feeding work, although the realisation of these features may differ according to the kind of machine tool concerned.
That sub-class provides in general for such features, even if the feature or a specific function, in any particular case, is to some extent peculiar to, or is claimed only for, machine tools designed for one particular operation; only in exceptional cases are such features to be classified in the sub-class for the machine tool concerned. Certain features of this general nature are, however, referred to sub-classes relating to particular metal-working operations, especially Fulltext... Hierarchy... Expanded...B23B, in which case the sub-classes in question are not restricted, in respect of those features, to the kind of machine tool with which they are primarily concerned. If details, components, or accessories have no essential feature specific to machine tools, the more general class, e.g, . (Fulltext... Hierarchy... Expanded...F16, takes precedence.
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines Fulltext... Hierarchy... Expanded...B23B 27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF MACHINE TOOLS, NOT DIRECTED TO A PARTICULAR METAL-WORKING RESULT
Groups designating parts of machine tools are to be understood as covering machine tools characterised by constructional features of such parts.
B23Q 1/00
Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members (Fulltext... Hierarchy... Expanded...B23Q 37/00 takes precedence)
Constructional features relating to the co-operation of relatively slidable members; Means for preventing relative movement of such members (bearings for linearly-moving parts Fulltext... Hierarchy... Expanded...F16C 29/00)
B23Q 1/28
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Means for securing sliding members in any desired position
Measuring or gauging equipment for controlling the feed movement of tool or work (measuring or gauging instruments per seFulltext... Hierarchy... Expanded...G01B)
according to measuring results produced by two or more gauging methods using different measuring principles, e.g. by both optical and mechanical gauging
B23Q 17/00
Indexing equipment; Arrangements of indicating or measuring equipment on machine tools (instruments per seFulltext... Hierarchy... Expanded...G01); Support or mounting of indicating or measuring equipment; Control of position of tool or work by such equipment (particularly for co-ordinate boring or drilling machines Fulltext... Hierarchy... Expanded...B23B 39/06)
B23Q 17/02
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Indexing equipment
B23Q 17/04
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for dividing angles; Dividing heads
B23Q 17/06
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of vernier dials
B23Q 17/08
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of equipment for measuring cutting pressure
B23Q 17/10
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of equipment for measuring cutting speed or number of revolutions
B23Q 17/12
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of equipment for measuring vibration
B23Q 17/14
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of autocollimator equipment
B23Q 17/16
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of measuring faces on component parts of machine tools, e.g. on tool holders
B23Q 17/18
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Controlling position of tool or work
B23Q 19/00
Arrangements, e.g. optical projecting means, for enabling the operator to see the position of the tool in relation to the work
B23Q 21/00
Equipment for controlling starting or stopping of the movement of tool or work in a predetermined position, e.g. for exact in-feed
B23Q 21/02
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with means for withdrawing tool or work during reverse movement
B23Q 23/00
Arrangements for compensating for irregularities or wear, e.g. of ways, of setting mechanisms
B23Q 27/00
Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another sub-class
B23Q 33/00 - B23Q 35/00
Copying
B23Q 33/00 - B23Q 35/00
Note(s)
The term "copying" is to be understood as covering the derivation of a required shape from a pattern, of the same or a different shape or scale, by a mechanism or equivalent means controlled by a member following the pattern. The pattern may be a model or drawing, or an element such as a cam incorporated in the operating mechanism of a machine. The term "copying" does not cover the derivation of a required shape from simple geometrical shapes, e.g. generating a cycloid by a rolling circle, which in general is provided for in group Fulltext... Hierarchy... Expanded...B23Q 27/00.
B23Q 33/00
Methods for copying
B23Q 35/00
Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
B23Q 35/02
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Copying discrete points from the pattern, e.g. for determining the position of holes to be drilled
B23Q 35/04
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using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
B23Q 35/06
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specially adapted for controlling successive operations, e.g. separate cuts, on a workpiece
B23Q 35/08
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Means for transforming movement of the feeler or the like into feed movement of tool or work
provided with means for adjusting the contact face, e.g. comprising flexible bands held by set-screws
B23Q 35/46
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Supporting devices therefor
B23Q 35/48
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Using a feeler or the like travelling to-and-fro between opposite parts of the outline of the pattern, model, or drawing
B23Q 37/00 - B23Q 41/00
Machines comprising units or sub-assemblies; Transfer machines; Associations of machines or units
B23Q 37/00
Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important (features relating to particular metal-working operations, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...B23P 23/00)
the sub-assemblies being capable of being brought to act at a single operating station
B23Q 39/04
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the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps (associations of machines connected only by work-transferring means Fulltext... Hierarchy... Expanded...B23Q 41/00)