Spindle–tool interface
HSK, BT, SK, CAPTO, and VDI as starting points for tool holder selection.
02 / 05 — System
Toolholding systems
We begin selecting a toolholding system with the connection between the specific cutting tool and the spindle or turret on the actual machine. The interface, access required, projection, run-out, assembly method and operating conditions define the task more precisely than a holder name alone. We therefore assess HSK, BT, SK, CAPTO and VDI, ER collets, shrink-fit, hydraulic and Weldon holders, reductions, extensions, the Infinity system and driven tools against the actual configuration. A toolholding system retains the tool in the spindle or turret. It does not choose cutting geometry, establish the location or clamping of the workpiece, or replace programme strategy. When machine, interface or assembly information is missing, we identify it before selection or a trial rather than claim an outcome.
This area works with the other four groups: tool, holder, workholding, digital layer and process.
SOLUTIONS
Decision areas, not an SKU list.
Choose the point constraining the process today. We will identify the right lever together.
Collets and holders
ER collets, shrink-fit, hydraulic, and Weldon holders considered according to the operation and required stability.
Overhang and extensions
Reductions, extensions, and projection length considered alongside vibration risk and radial runout.
Infinity system and driven tools
Modular Infinity system and driven tools for machine configuration and the machining task.
CASE STUDIES01NOT A CASE STUDY 02NOT A CASE STUDY 03NOT A CASE STUDY Enter TIZ B2B →
Context / Approach / Verification / Result
Case studies for this group are being prepared.
We do not publish metrics, logos or outcomes without TIZ approval.
TIZ B2BTECHNICAL CONVERSATION
Three starting points for a conversation
The cards below do not describe customers, parts or outcomes. They show three ways to structure a conversation before specifying a process stack for a particular operation and machine.
Part and feature in operation
We begin with the material, required feature, tolerance and place of the operation in the overall machining route. This establishes what information is needed before a tool catalogue number enters the discussion.
Not to be confused with: an implementation description, an approved case study or a claim about cutting parameters.
Process stack on that machine
We consider the tool, toolholding, workholding and programme strategy as a stack operating in that particular operation and on that machine. We distinguish retaining the tool in the spindle or turret from locating, supporting and clamping the workpiece.
Not to be confused with: selecting an SKU alone or replacing process analysis with a catalogue.
Trial or clear information gap
The criterion for this conversation is a machine trial or a clear statement of the information still missing before it can be planned. We do not replace this with a slide, an outcome promise or a generalisation to other machines, parts or production runs.
Not to be confused with: a confirmed customer outcome or a published case study.
KNOWLEDGE
Open knowledge baseMaterial for the technical conversation.
Interface from spindle to tool
The spindle interface defines how the holder connects to the tool. HSK, BT, SK, CAPTO and VDI are starting points for describing a toolholding arrangement.
Not to be confused with: cutting geometry and tool selection; those belong to Cutting tools.
Read outlineOverhang as part of assembly
Overhang, reductions and extensions form part of the toolholding arrangement, not merely a catalogue dimension. Their description includes access to the feature and the configuration of elements between spindle and tool.
Not to be confused with: workpiece location and clamping; those belong to Workholding systems.
Read outlineRunout and balancing in assembly
Radial runout and balancing are described in relation to the spindle, holder and tool. This separates toolholding attributes from tool wear and operating conditions.
Not to be confused with: wear and the function of cutting geometry; those belong to Cutting tools.
Read outlineTIZ B2B / VERIFIED CUSTOMER ACCESS
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