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Checking fixture for exhaust line

Checking fixture for exhaust line assembly

  • In this example, control of 3 different versions of exhaust lines: quick change of reference by rotating plates
  • Checking fixture composed of several plates (in that case, 4) mounted on a 30mm aluminium base plate, in order to ensure the stiffness of the structure
  • Control of the position of the bent sections of the line by "U" shaped blocks
  • Control of the deformation of the part critical areas by dial indicator
  • Control of the position of the sensor bosses by sliding pins
  • Control of the cut of the extremities of the part by fixed blocks and a  Go/No Go pin
  • Checking fixture inserted within a trolley, to prevent any risk of fall during its use in production conditions

Checking fixture for exhaust line rear muffler

  • In this example, control of 2 different versions of exhaust lines: quick change of reference by rotating plates
  • Control of the position of the bent sections of the line by "U" shaped blocks
  • Control of the deformation of the part critical areas by dial indicator
  • Control of the position of the sensor bosses by sliding pins
  • Control of the cut of the extremities of the part by fixed blocks and a  Go/No Go pin
  • Checking fixture inserted within a trolley, to prevent any risk of fall during its use in production conditions

Checking fixture for exhaust line front muffler

  • Control of the position of the bent sections of the line by "U" shaped blocks
  • Control of the deformation of the part critical areas by dial indicator
  • Control of the position of the sensor bosses by sliding pins
  • Control of the cut of the extremities of the part by fixed blocks and a  Go/No Go pin
  • Checking fixture inserted within a trolley, to prevent any risk of fall during its use in production conditions

Description

As any part made of welded and bent components, it is essential to control the following features on exhaust line assemblies: position of the components welded to the main structure, location of holes, deformation of critical areas and position of bent sections. All these controls can be done either by Go/No Go or by dial indicator.

Materials and tolerances

Our checking fixtures are produced in aluminium, the components submitted to wear-and-tear are produced in steel. Tolerances for RPS (fixation points) and dial indicator points: ±0.05mm. Tolerances for simulation blocks: ±0.1mm.

Documentation delivered

Minimum documentation: dimensional report of your checking fixture, 2D assembly drawing, assembly CAD.  Optional documentation: R&R report, user manual, stabilization certificate.

Cycle time and traceability

To ensure traceability, the checking fixtures for exhaust lines usually have a high number of control points by dial indicator. Consequently, reducing the cycle time and the risk of human errors during the measurement process will be important to guarantee a good repay of the fixture, and ensure the quality of the measurements. In the example of the checking fixture for exhaust line assembly shown in this product sheet, the customer opted for using a CAPTOR-S kit for his measurements, as he could use it on other fixtures available in his workshop. Yet, for a complete prevention of errors during the measurement process, CAPTOR-C would be the ideal solution.



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