True Position Measurements (Position Tolerance)

VisionGauge® OnLine programs can take advantage of our new True Position measurement tool. True Position (sometimes referred to as “Position Tolerance”) is the total permissible variation that a feature can have from its “true” position. VisionGauge® OnLine’s approach to True Position allows a user to define a Nominal feature whose position is compared to the Actual occurrence of that feature. Features are defined using datums that have been set in previous program steps, using VisionGauge® OnLine’s rich measurement toolset to specify points. Nominal features can be defined using either Cartesian or Polar coordinates, which makes this software tool versatile in solving different types of applications. Nominal features can also be offset from a position using Basic Dimensions in the current measurement units.

VisionGauge® Online presently supports Cylindrical (point location) and Non-Circular (line) features of size. The Nominal tolerance zone is displayed along with the Actual feature location. As with all VisionGauge® Online measurements, results – including a Pass/Fail result – can be automatically output to Data Groups and other reporting options.

True Position – Cylindrical (Cartesian)

True Position measurement of a cylindrical feature inspected using Cartesian basic dimensions
True Position measurement of a cylindrical feature inspected using Cartesian basic dimensions

In the above example, the hole’s nominal center point is defined precisely 1.250 inches vertically and horizontally from the corner of the part. The actual center of the hole is located, and the software automatically computes the True Position of the feature and reports a Pass/Fail result based on the diametric tolerance zone defined.

True Position – Cylindrical (Polar)

True Position measurement of a cylindrical feature inspected using Polar basic dimensions
True Position of a cylindrical feature inspected using Polar basic dimensions

In this example, the hole’s nominal center point is defined precisely at 60 degrees clockwise on a radius of .750 inches centered about the part’s center hole. The actual center of the hole is located, and the software automatically computes the True Position of the feature and reports a Pass/Fail result based on the diametric tolerance zone defined.

True Position – Non-Circular (Polar)

True Position of a non-circular feature inspected using Polar basic dimensions
True Position of a non-circular feature inspected using Polar basic dimensions

In this example, the nominal centerline is defined precisely at 45 degrees clockwise and centered about the part’s center hole. The actual centerline of both teeth on the spline is located, and the software automatically computes the True Position of the feature and reports a Pass/Fail result based on the tolerance zone defined (equidistant and parallel to the nominal centerline).

Please contact us with your application requirements, and visit our Applications page for more examples of applications we can solve.

True Position Measurements (software feature)

Introducing VisionGauge®’s new Patent Pending “Tooth Checker™” tool

 

We’re happy to introduce VisionGauge®’s Patent Pending “Tooth Checker™” tool, specially adapted to check parts with teeth. This innovative new tool automatically locates, to very high accuracy, the crests and / or roots of the teeth and determines if they are within their tolerance band. It can also determine all other part characteristics, such as tooth pitch, thread depth, major & minor diameters, etc…

Bone screw teeth verification with the VisionGauge® “Tooth Checker™” tool
Bone screw teeth verification with the VisionGauge® “Tooth Checker™” tool

The Tooth Checker tool can verify that either crests, roots, or both, are in tolerance, using these crest & root points that the Tooth Checker tool has found, it can then automatically determine all other part characteristics:

VisionGauge Tooth Checker Nomenclature
Automatically check all part characteristics

This powerful new tool is perfect for quickly and accurately checking:

  • bone screws,
  • medical rasps,
  • gears,
  • fluted instruments,
  • threads & fittings,
  • and much more!

 

 

Click to view more information about the VisionGauge® Tooth Checker™, or download the application note.

 

New Min/Max Tool for Automatic Part Alignment – Application Note

The VisionGauge® Digital Optical Comparator’s new “Min/Max” software tool is the perfect solution for automatically aligning a part using a rotary stage. The tool can be setup to rotate the part and find the position that either minimizes or maximizes a dimension.

Common examples include the following:

Rotary stage and workholding for turnkey runout measurement application.
Rotary stage and workholding for turnkey runout measurement application.
In this case, the Min/Max tool is used to align the flats on the part perfectly horizontally, completely automatically

 

Automatic alignment of a turbine blade fir tree
Automatic alignment of a turbine blade fir tree

 

With this new Min/Max tool, it’s extremely easy to setup an automated routine for the alignment of any kind of part. Also, results are extremely repeatable. This advanced tool uses high-order interpolation for very accurate subsampling. This means that the position of best alignment can be found very accurately, at any orientation (not just at the sampled orientations).

This new tool is completely integrated with all of the VisionGauge® Digital Optical Comparator’s other tools so that all of its results can easily be recoded, transmitted, databased, sent to Excel™ or any other data capture application, put in a report, etc…

This new Min/Max tool further increases the wide range of applications that can easily and reliably be solved using the VisionGauge® Digital Optical Comparator.

Click to view this application note as a downloadable .pdf.

VisionGauge® Digital Optical Comparator / Profile Projector Applications

VisionGauge® Digital Optical Comparators are being used by many different companies across a very wide range of industries. Here are some examples of applications we have solved within various industries:

Broached slot inspection

Aircraft and aerospace component inspection and measurement

Medical implant inspection and measurement

Medical device and component inspection

Medical instrument inspection and meausrement

Extrusion inspection and measurement

Cutting tool inspection and measurement

Automotive components and parts inspection and measurement

Industrial gas turbine part inspection (IGT)

VisionGauge® Digital Optical Comparators / Profile Projectors are perfect for both the shop floor and the Quality Control lab.

VisionGauge Digital Optical Comparator inspecting a turned part
turned part
VisionGauge Digital Optical Comparator inspecting a nozzle
VisionGauge Digital Optical Comparator inspecting a nozzle

Inspection of mechanical parts

VisionGauge Digital Optical Comparator inspecting Forging in the Orthopaedics Industry
Forging in the Orthopaedics Industry
Automated Aircraft Engine Impeller Inspection on VisionGauge® Digital Optical Comparator
Automated Aircraft Engine Impeller Inspection
Fir Tree and CAD Overlay in the Aerospace Industry on VisionGauge® Digital Optical Comparator
Fir Tree and CAD Overlay in the Aerospace Industry
Knee Implant and CAD Overlay in the Orthopaedics Industry on VisionGauge® Digital Optical Comparator
Knee Implant and CAD Overlay in the Orthopaedics Industry

VisionGauge® Digital Optical Comparators are also appropriate for color applications.

VisionGauge Digital Optical Comparators are also appropriate for color applications
VisionGauge Digital Optical Comparators are also appropriate for color applications
VisionGauge Digital Optical Comparator inspecting an Extrusion
Extrusion
VisionGauge Digital Optical Comparator inspecting a bonescrew
VisionGauge Digital Optical Comparator inspecting a bonescrew on VisionGauge® Digital Optical Comparator
Bonescrews
Inspections of Spring and other Various Mechanical Parts on VisionGauge® Digital Optical Comparator
Inspections of Spring and other Various Mechanical Parts
Inspection of an Automotive Part (transmitted illumination) on VisionGauge® Digital Optical Comparator
Automotive Part (transmitted illumination)
Inspection of an Automotive Part (reflected illumination) on VisionGauge® Digital Optical Comparator
Automotive Part (reflected illumination)
Inspection of Electronic Assembly / Populated Printed Circuit Board on VisionGauge Digital Optical Comparator
Electronic Assembly / Populated Printed Circuit Board
VisionGauge® Digital Optical Comparator / Profile Projector Applications

Extended Travel 700-Series VisionGauge® Digital Optical Comparator featured in Modern Machine Shop

A new article about the Extended Travel 700-Series VisionGauge® Digital Optical Comparator has just appeared in Modern Machine Shop.

Larger Digital Comparator Model with Trunnion-Table Design

The 700 Series VisionGauge® Digital Optical Comparator 5-axis inspection and measurement system is the ideal solution for the automatic inspection of parts with complex geometries.
The 700 Series VisionGauge® Digital Optical Comparator 5-axis inspection and measurement system is the ideal solution for the automatic inspection of parts with complex geometries. The Extended 24″ x 24″ x 24″ travel machine with trunnion configuration for big and heavy parts is shown above.

The article is also available in pdf format.

 

700 Series VisionGauge® Digital Optical Comparator featured in Aerospace and Defense Technology

Please note that a new article about the 5-axis 700 series VisionGauge® Digital Optical Comparator has just appeared in the February 2016 edition of Aerospace and Defense Technology:

700 Series VisionGauge® Digital Optical Comparator Replaces CMM Inspection

You can also download the article in .pdf format.

The 5-axis 700 Series VisionGauge Digital Optical Comparator
The 5-axis 700 Series VisionGauge Digital Optical Comparator

Updated information for the extended-travel 5-axis 700 Series VisionGauge® machine

Please note that updated information is available for the extended-travel 5-axis 700 Series VisionGauge® machine.

This is a trunnion-based machine. It has a 24″ x 24″ x 24″ envelope and is designed to accommodate parts that weigh up to 100 lbs.

The 700 Series VisionGauge® Digital Optical Comparator 5-axis inspection and measurement system is the ideal solution for the automatic inspection of parts with complex geometries.
The 700 Series VisionGauge® Digital Optical Comparator 5-axis inspection and measurement system is the ideal solution for the automatic inspection of parts with complex geometries. The Extended 24″ x 24″ x 24″ travel machine with trunnion configuration for big and heavy parts is shown above.

 

Note that you can obtain an updated product brochure (with specifications, etc) in .pdf format.

Also, you can see a video about our 5-axis 700 Series VisionGauge® systems below:

The extended-travel 5-axis 700 Series VisionGauge® machine is the perfect solution for a number of applications, including the inspection of cooling holes in IGT (Industrial Gas Turbine) parts.

“A New Paradigm for Aero Engine Holes Inspection” – Case Study

A new “case study” article about the 5-axis 700 series VisionGauge® Digital Optical Comparator has just appeared in the September 2015 edition of Manufacturing Engineering – Aerospace & Defense 2015 Yearbook:

A New Paradigm for Aero Engine Hole Inspection

In this case study, Paradigm Precision (a large aerospace sub-contractor to GE, UT, Rolls Royce and many others) explains how they are using the VisionGauge® system to carry out 100% inspection of cooling holes on a wide range of complex 5-axis parts, including blades, vanes and heat shields.

They mention that they are achieving a repeatability of +/-0.0001″.

You can also download the article in .pdf format.

The 700 Series 5-axis VisionGauge® Digital Optical Comparator inspecting various types of holes.
The 700 Series 5-axis VisionGauge® Digital Optical Comparator inspecting various types of holes.

New 40X magnification for 300 Series VisionGauge® Digital Optical Comparator

 

Please note that we have developed a new 40X magnification of our 300 Series VisionGauge® Digital Optical Comparator.

This new higher-magnification configuration was developed to meet the requirements of various higher-magnification applications, such as the fast and accurate inspection and measurement of diamond Electrical Discharge Machined Polycrystalline Diamond (PCD) and Cubic Boron Nitride (CBN) cutting tool inserts.

Updated 300 Series literature may be found in .pdf format here.

VisionGauge 300-series Digital Optical Comparators are Field-of-View Systems that are ideal for smaller parts
VisionGauge 300-series Digital Optical Comparators are Field-of-View Systems that are ideal for smaller parts