Modular coil assembly fixture mcaf
Download
1 / 25

Modular Coil Assembly Fixture (MCAF) - PowerPoint PPT Presentation


  • 114 Views
  • Uploaded on

Modular Coil Assembly Fixture (MCAF). Information Meeting February 23, 2005. Agenda. Define the basic design requirements of the Modular Coil Assembly Fixture (MCAF), Define VV / MC clearances during MC assembly

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Modular Coil Assembly Fixture (MCAF)' - zeno


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Modular coil assembly fixture mcaf

Modular Coil Assembly Fixture(MCAF)

Information Meeting

February 23, 2005


Agenda
Agenda

  • Define the basic design requirements of the Modular Coil Assembly Fixture (MCAF),

  • Define VV / MC clearances during MC assembly

  • Describe the Reference Design that was used to generate the MCAF design specifications,

  • Review the MCAF performance requirements as they currently stand, and

  • Answer questions


The design intent of the MCAF is pass two modular coil assemblies over the VV and accurately position mating flanges.


The Modular Coil Assembly Fixture Reference Design assemblies over the VV and accurately position mating flanges.


Mc design and vv clearance
MC Design and VV Clearance assemblies over the VV and accurately position mating flanges.

Module Coil Half Period

1.76” actual minimum for nominal sizes


MC to VV Clearance assemblies over the VV and accurately position mating flanges.

A 1.76" (metal-to-metal) min clearance between MC’s and VV.

MC is at its final position


MC to MC Clearance assemblies over the VV and accurately position mating flanges.

A 0.45” minimum clearance exists between wing region of Type A’s as the two half period MC shells comes together.

Wing region


How can assembly tolerances effect clearances

1.0” VV insulation assemblies over the VV and accurately position mating flanges.

0.1875” VV tolerance

0.060” MC tolerance

1.25 ” Minimum Space

How can assembly tolerances effect clearances?

MC is at its final position

0.96”


Gantry Crane assemblies over the VV and accurately position mating flanges.

Module Coil Half Period

Turning Fixture / MC Interface Components

Module Coil Half Period

Type “C”

Turning Fixture

Type “A”

Base Guide Rail

VV Support

Type “B”

MCAF Reference Design

The Reference Design was develop to qualify technical feasibility and help in establishing a design specification.


60 Deg assemblies over the VV and accurately position mating flanges.

66.753”

The relation between the Reference Design and Machine Coordinate System

Machine Coordinate System

Y

Z

X

Y

6.125”

Reference Design Coordinate System


. assemblies over the VV and accurately position mating flanges.

Y

X

Z

For the Reference Design the X-axis was shifted up 6.125”

Z

Rz

Rx

X

X

Ry


The Reference Design MCAF motion is based on a 248 step servo table to drive six motors.

MC is at its final position


MCAF Component Details servo table to drive six motors.

Module Coil Half Period

(25000 lbs max)

MCHP / Turning Fixture interface

Pivot and rotation gimbal component

(3200 lbs)

Cradle component

(6300 lbs)

Vertical guide component

(3500 lbs)

18,700 lbs

(2700 lbs)

Linear turntable structure

Linear motion structure

(3000 lbs)


Exploded isometric view
Exploded isometric view servo table to drive six motors.

MCHP / Turning Fixture interface

Gimbal structure supports the MCHPand drives the pivot motion (“X rot”)

A cradle structure support stabilizes and drives “Y rot” of a gimbal structure.

The vertical guide component stabilizes four screw jacks (“Z” dir) which are driven by a single motor

A linear turntable provides “X” motion with a pivot point (“Z rot”) and a bearing surface

Base structure provides “Y” motion


RY = 13° servo table to drive six motors.

RX = 5°

DZ = 16”

RZ = 15°

DX = 12”

Z

Y

X

Extent of motion of turning fixture components.

DY = 140”


Mc interface structure
MC Interface Structure servo table to drive six motors.

A Local beam that interfaces with the gantry crane picks up existing MC holes

Shaft attached to mid-section of Type “B” MC

The MC CG location stays within the attachment points



In the final position two modular coil half periods will be separated by 0.50” (nominally) with three spherical seats engaged within an accuracy of 0.009”. . . If all goes well.

Leica laser system used for assembly measurement.


What seismic design criteria do you apply during an assembly process
What seismic design criteria do you apply during an assembly process?

We have set a static seismic criteria of .108 as the design requirement following the NCSX Seismic Specification NCSX-CRIT-SEIS-00


Starting Position - CG Locations process?

(Base End and Front Views)

18,300 MCHP

38,000 MCAF


Final Position - CG Locations process?

(Front and Top Views from Base Structure)

18,300 MCHP

38,000 MCAF

100.0”


Side view show worst seismic position process?

The existing base should work with captured rollers and a .108 static seismic factor but a broader base may be necessary if the CG moves up or a dynamic stop condition governs the design.

4104 lbs (assumes a .108 seismic factor)

Capture roller

38,000 lbs

104”

A

34”


Sideways clearances between MC shell and secondary support structure shall be greater that 60”


34.8 structure shall be greater that 60”’

21.25’

Test cell assembly space requirements.


System requirements
System Requirements structure shall be greater that 60”

  • Performance Requirements

  • Fit-up and Assembly Space Allocation

  • Motion Controllers Requirements


ad