Introduction; Features - Renishaw MIH User Manual

Introduction

1.0 INTRODUCTION
The Renishaw Manual Indexable Head (MIH) is a compact
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manual probe head which offers the flexibility and time
The MIH
saving normally associated with direct computer controlled
(DCC) machines and motorised probe heads.
The MIH is adjustable in two axes, both of which can be
unlocked by a single thumbwheel operation. A probe/stylus
combination can be orientated to 720 different positions and,
once the head is locked, each position will be repeatable to
1µm* (0.00004in) (2σ). Hence the user can return to any
chosen position without having to requalify the probe/stylus tip.
The current position is shown on the integral liquid crystal
display (LCD) and is constantly updated during moves.
The programmable memory facility allows pre-datumed
positions to be stored in a memory within the head. Direction
arrows shown on the LCD lead the user back to any one of
20 memorised positions. Memorised head positions can be
arranged in any order to suit a particular sequence of
inspection. The sequence can be re-edited as required and
the direction arrows will lead the user, step-by-step, through
the sequence.
Probes are attached to the MIH by means of a Renishaw
Autojoint, allowing the user to easily exchange probes whilst
maintaining repeatability to 0.5µm* (0.00002in) (2σ). The
Autojoint is recessed into the head, thus maximising the
valuable working volume of the machine.
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Features

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10 MIH User's Guide
Manually indexable in 2 axes
Positionally repeatable to 1µm* (0.00004in) (2σ)
720 selectable positions
Head mounted LCD display
Programmable memory function
Simple operation
Compact size
Renishaw Autojoint probe mounting
No special installation required
Measured at 67mm (2.64in) from Autojoint (TP6A probe with
21mm (0.83in) stylus).