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Measuring system · SMS · Spring Measurement System

Non-contact measurement of suspension springs.

The SMS captures suspension and axle springs with laser sensors from Micro-Epsilon and evaluates them in InnoMeas. The system finds the start and end of the spring by itself. Loading the spring requires no special knowledge.

What we achieve with the measurements
SMS measuring system with a spring loaded behind the glass door, screen and controls on the right
SMS · typical footprint 1200 × 720 mm · height 1900 mm

Application

Coiled shape, changing surfaces, tight tolerances.

Suspension springs are demanding to measure. Mechanical systems wear and depend on the operator. At Mubea, optical systems available on the market did not achieve the required accuracy and ease of use.

Solution

The spring stands upright between two interchangeable cones; gravity holds it in position. The laser sensor follows the contour of the spring wire and adjusts its position automatically. InnoMeas detects the start and end of the spring and builds the entire spring as a 3D model, with temperature compensation.

Close-up: laser spot on the wire of a suspension spring in the SMS

Key figures

For springs up to 650 mm high.

Values according to the data sheet. The measuring range is scalable, also for springs outside these dimensions.

  • Spring heightup to 650mm
  • Spring diameter30–280mm
  • Wire thickness2.5–40mm
  • Sensor resolution12 / 24µm
  • Profiles per second, sensor10,000
  • Profiles per second, system1,000

Video

The SMS in 90 seconds.

Load the spring, measure, evaluate: this is how the SMS works. Captions in English, with music.

SMS · Spring Measurement System · 1:33 min

What the video shows

  • Loading the spring between the two cones
  • Line sensors with adaptive position control
  • Automatic detection of the spring and tracking of unknown contours
  • Automatic detection of the spring ends
  • 3D view of the entire spring in InnoMeas
  • Evaluation of the wire contour and customisable data export

What we achieve with the measurements, we call Springtelligence.

Spring plus intelligence: measuring a spring is only the beginning. What matters is what the measurement data achieves in your production. The SMS turns every spring into a complete data set that you use to set up your spring production precisely.

  1. 01

    Measure

    The SMS captures the entire spring without contact. It finds the start and end of the wire by itself, without operator influence.

  2. 02

    Understand

    InnoMeas shows the spring in 3D, evaluates the wire contour and compares the actual geometry with the nominal values: from your database, from a golden master spring or from a reference measurement.

  3. 03

    Set up

    The results go where they have an effect: to WAFIOS iQ, into your software, into your database or back into the set-up process of the coiling machine.

At Mubea, the SMS shortens the path from the development stage to the first sample.Read the case study

Features

What the SMS measures on the spring.

  • Automatic spring detection and tracking of unknown contours
  • Automatic detection of the start and end of the spring
  • Wire centre contour
  • Wire diameter
  • 3D view of the entire spring
  • Automatic central axis
  • Temperature compensation

Spring types

  • Side-load
  • C-springs
  • cylindrical
  • with reduced ends
  • Miniblock
  • customer-specific, also outside automotive
InnoMeas interface of the SMS with a 3D view of a spring and a list of results
InnoMeas · 3D view of the spring with list of results

Use

From prototype to the production line.

The SMS works in development, next to the line and fully automatically in production.

  1. LabDevelopment and prototypingmeasuring samples, reverse engineering
  2. AtlineManual, next to the linequality assurance, machine set-up
  3. InlineAutomatic, in the lineconnected to the PLC

Interfaces and options

With an interface to WAFIOS iQ.

Nominal values come from your database, from a golden master spring or from reference measurements. Results go to WAFIOS iQ or wherever you need them.

Fieldbus and PLC

  • EtherCAT
  • S7
  • PROFINET
  • MELSEC / CC-Link
  • Modbus/TCP
  • TwinCAT

Data exchange

  • qs-STAT
  • Excel
  • DXF
  • Text
  • PDF
  • JSON
  • IGES
  • 3D: Tecplot, point clouds
  • Databases
  • Formats on request

Options

  • Scale
  • Label printer
  • Code reader
  • Touchscreen
  • Push buttons
  • Signal light
  • Further interfaces

Technical data

SMS at a glance.

For smaller compression and extension springs, there is the SMS Compact.

About the SMS Compact
Measuring principleLaser line triangulation, non-contact
SensorsMicro-Epsilon, adaptive sensor position control
Sensor measuring range15 × 25 mm or 40 × 50 mm
Resolution12 / 24 µm
Profile rateSensor up to 10,000 profiles/s, system up to 1,000 profiles/s
Spring heightup to 650 mm, scalable
Spring diameterØ 30–280 mm
Wire thicknessØ 2.5–40 mm
Useautomatic inline, manual atline, prototyping, QA, set-up, reverse engineering
InterfaceWAFIOS iQ, plus fieldbus and data formats
Footprinttypically 1200 × 720 mm, height 1900 mm

Images

The SMS in detail.

Data sheet

All data at a glance.

The data sheet is currently being revised. We will be happy to send it to you.

  • Data sheetSMSSuspension and axle springsbeing revised

All downloads

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Contact

Tell us about your measurement task.

You talk directly to the engineers who build your system. Drawings and photos help us with the first assessment.

Phone
+49 5622 930807-0
Email
info@qsigma.de
Address
Qsigma GmbH, Brautäcker 4
34560 Fritzlar, Germany
Service
remote and on site · Service and support