Magna Seating Gauge Specifications Rev 5(检具设计标准)

MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

Revision 5

MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

Revision 5

4

th

August 2017

Page 1 of 25

Aug. 4th, 2017

MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

1.

Revisions

Revision Number

3

4

Date

21 March 2017

28 April 2017

Revision Description

Initial Global Release

Update Design / Buld Exception section 16

Created Magna Design Acceptance sign Off

Updated Gauge Build Sign off

Create Global Team Sign Off

Updated clamp design requirements.

Various notation corrections.

Added note to have qualifying ball coordinates on the base plate.

Updated datum pad & datum mounting block requirement to match print datum zone & dimensions.

Added images & an example.

Updated clamp swing arm design & added requirements for locking in clamping position.

Corrected document revision level.

Updated Design, Construction, Acceptance & Global Acceptance checklists.

Added requirement for zero blocks for indicators on planes in which they are used for measuring.

Updated spec with all latest changes in

Bold font & underlined.

Added gauge instruction format & provisions for storage under base plate of fixture.

5

04 Aug 17

2.

Preface

Dear Gauge Supplier,

We are pleased to release to you a copy of our new Gauge Specifications, dated

04 Aug 17.

This specification becomes effective immediately on any new

purchase orders issued for gauge(s) and is to be used for Magna Seating. Our Tooling Engineering & Purchasing teams will refer to this document on any

Request for Quotations.

This document has been compiled with the help of our Tooling Engineering, Purchasing and Quality Assurance Departments.

The specification itself is a guideline and our Tooling Engineering can deviate, if it proves to be a quality, processing or cost improvement. All exceptions to this

specification shall be mutually agreed upon in writing, using the Gauge / Build Exceptions section 14 prior to execution.

This specification is a guideline for our Gauge Supplier and adherence does not alleviate responsibility for die performance to the mutually agreed specification.

Once you have reviewed this document the Gauge Specifications Acknowledgement Form should be signed, dated and sent to the attention of the Purchasing /

Tooling Engineering at Magna Seating (Gauge Specifications Acknowledgement Form Section 13). Updates to this specification will be tracked in the Revision

Log (Section 1).

3.

4.

Purpose

To establish standard Tool & Die-Making and manufacturing practice that assures safe handling, reliability, repeatability of checking gauges.

Scope

This Magna Seating Specification applies to all worldwide locations of Magna Seating for Gauges at Magna Seating stamping facilities as well as Magna Seating

suppliers for all of the following.

1.

All new checking gauges

2.

3.

All refurbishment of checking gauges

Any changes to existing checking gauges

5.

Responsibility

Magna Seating

Tooling Engineering will ensure all quotes acknowledge Gauge Specification conformance.

(Gauge Specifications Acknowledgement Form

Section 13)

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MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

6.

Design

Gauge design must be completed in 3D STEP / AutoCad compatible software.

Designs must be submitted to

Magna Seating

for customer /

Magna Seating

Quality Assurance and Engineering approval prior to fabrication. Design approval

does not alleviate the vendor’s responsibility fo

r ensuring all dimensions and tolerances conform to component print as supplied. Drawings to be submitted in

Auto Cad format, design to be submitted in native CAD format & then Step format to

Magna Seating

once Gauge build is complete.

All checking Gauges must have 3 qualifying balls labeled A, B & C. A protective cover must be provided. X, Y, and Z co-ordinates relative to points of origin to be

stamped on the base. (See Verification) Qualifying balls must be located in 3 of the 4 corners of the base plate. For larger gauges, the qualifying balls may

require one mounted on the longest edge of the Gauge base. This must be approved by

Magna Seating

prior to construction. Tooling balls must be mounted on

a hardened & ground surface, bolted & doweled in place.

All GO / NO GO pins are to be identified with size and s

tamped “GO” and “NOGO” accordingly.

All GO / NO GO pins for slotted holes must be double ended.

One end for Width

“GO

/ NOGO

”

and opposite end for Length

“

GO / NOGO

”

. All loose pins shall be fastened into a Hexagonal aluminum holder. Pins are to be

hard fastened (no collets or bushings in holder). Design will allow the removal of a pin should it become necessary to repair. All checks to the part must be

completed over the perimeter of the base, all GO / NOGO pins, indicators, zero blocks and sleeves must not protrude beyond the perimeter of the base plate in

their check or home position.

All feeler gauges must be long enough to capture the entire feature being measured & must be easily accessible with the feeler.

All datum locating pins and positional check pins must be the captive retractable type & must retract a minimum of 4.0mm below the bushing & lock in their

‘Home’

position.

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

All positional check pins are to be inserted into Imperial standard size steel hardened bushings. Slotted or square pins are to be guided by hardened keys. All

pins to retract a minimum of 4.0 mm below the top of the bushing & must retract via a spring. Where springs are not feasible, check pins must lock in their

retracted / “home” position. Pins having a pilot size smaller than 3mm are to be as large as possible.

All tapered datum pins must have angles between 5 to 10 degrees and secure parts with taper running 10% undersized to 10% oversize relative to minimum

and maximum print hole / slot sizes.

A.

B.

Top of Pin Size:

Bottom of Pin Size:

?

?

?

?

(Min Diameter) 15.90 x 0.90 = 14.31 mm (10% less than Min Diameter.)

(Max Diameter) 16.10 x 1.10 = 17.71 mm (10% more than Max Diameter.)

Nominal Hole Size:

Tolerance:

Max Hole Diameter:

Minimum Hole Diameter:

16.00 mm

± 0.10 mm

16.10 mm

15.90 mm

All datum pads must be a minimum of 6.35mm (1/4

the Gauge with Socket Head Cap Screws

to the uppside down ‘T’ mounting block. Mounting block must be bolted & doweled to the baseplate. Minimum of

2 Socket Head Cap Screws in opposite corners & dowels in the remaining 2 corners

.

All datum pads must adhere to print specifications for datum target

zones & dimensions. Datum pads must be be secured to a block & must not be adjustable.

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

?

?

?

Datum target zone is

matched to the drawing.

?”

thick Datum pad is

secured with SHCS.

Datum pin locked home

position is 4mm below the

datum surface.

Datum mounting block is

mounted on an upside

down ‘T’, bolted & doweled

in opposing corners.

?

All Gauges checking clearance will use a standard round GO / NO GO rod type feeler with a mean diameter of 5 mm for checking clearance. (When mean

diameter must deviate from 5mm, Magna approval is required.) All feelers, pins & hand held attribute gauges are to have a

the gauge design.

hand held attribute gauges are to be attached with polyurethane coiled cable. All pin gauges must be class ZZ minus with calibration traceable to NIST.

Go Pin Diameter: 3.75mm

NOGo Pin Diameter: 6.25mm

Profile Tolerance: 2.5mm

Nominal Pin Size: 5.00mm

All working surfaces of Gauge must be through hardened.

Through hardened working surface. (Feeler profile check.)

Automotive

manufacturer’s specifications for clearances and color codes must be adhered to.

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

When any captive (female) or stab (male) pin(s) are retracted & the part to be measured is loaded & clamped into place, there must be a minimum of 12.70mm

(1/2

4mm from the working surface regardless if there is a feeler check or not. Pins must be a one piece construction.

Hole Position Check & Surface Profile Check with Feeler.

All clamps used on the gauge must be IN-LINE (push pull toggle clamp), clamp tips must be made of hardened ground steel & spring loaded. (Refer to Exhibit D

on Page 10.) Deviations from in-line clamps must be approved by Magna. Blocks in which clamps are mounted on must be bolted & doweled to the base plate.

Swing clamps are not permitted. In-line clamps on swing arms with locking features are permitted.

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MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

Clamping pressure must be consistent across all gauges built for

Magna Seating

. Springs used on clamps must be Tempered Steel Die Springs with closed &

ground flat ends. Current standard clamp springs are MP Series Die Springs

–

(Medium Pressure) or equivalent.

A.

B.

C.

D.

Spring pressure must be measured & set on the clamp / Gauge at 185N.

A simple method to do this is to mount the spring onto a jig & apply a compression force of 185N.

Now measure the overall length of the spring with the 185N applied.

When installing the spring onto the Gauge, ensure that the compressed length of the spring is the same as measured on the jig with 185N

applied. The spring must displace the same on the Gauge with a part loaded as was measured on the jig, this will ensure consistent spring

pressure across all Gauges. Tolerance of spring pressure is 180

–

190 N

Clamp mounting blocks must be made of an upside down ‘T’ style, bolted & doweled in opposing corners at a minimum. Clamp swin

g arms must lock in the

clamping position using a lock pin through the swing arm.

In-line clamp on swing arm in the

down & locked position.

Unlocked & swung out of

the way to load part

NOTE:

Vendors are not to proceed with Gauge build until design approval by Magna. Vendors are required to submit designs for review prior to

construction. Review submission must be in native CAD format.

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

7.

1.

Construction

Base plate to be aluminum Tooling

Plate, no less than 19.5mm (3/4”) thick with machined perimeter. On larger gauges (in excess of 28” in X, Y plane

&/or 20” in

the Z plane), base plate must be stable and adequate for Gauge build-up and must be of cast or welded aluminum construction.

All checking Gauges must have provisions for storing of all checking pins on the base plate. All GO / NOGO shall be mounted directly onto the base and must be

removable for servicing. Pins are to be hardened and ground to size, pilot and bushing sizes are to be Imperial standard sizes only. Pins are to be hardened for

the entire length of the pin, not just the tip / working area.

Fixture operating instructions are required on all fixtures. Each set of instructions must depict each step. Instruction sheets to be provided on standard 8?

x

11 paper with protective covers, and provision be made to store sheets under the base of the fixture. Instructions must include actual photos of the fixture

in use, CAD images are not permitted in the instructions.

All indicators must be battery operated digit

a

l readout style. (Mitutoyo # 543-683 is currently standard.)

Indicators used for profile checks must have a zero block mounted to the baseplate.

Zero block must be mounted to the base plate on the same plane in

which it is used to measure.

For indicators mounted on THK rail, the indicator’s ‘Home’ position must

provide provisions for zeroing

with a locating pin

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

When indicators are mounted to THK rails, the location of each measurement must be located via a locating pin.

Home storage &

zero block for

digital indicator

Zero Block

Locating Pin

Position 2

Position 3

Example of Profile Check with Indicator

Digital indicators must be guarded where normal handling of part could result in damage to same.

All digital indicators must have provisions for zeroing such that nominal part print dimensions yield a reading of 0.00 mm.

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MAGNA SEATING

GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

All Gauges must have identification plates, revision

plates

attached, Magna code, latest customer part number, revision

level of gauge,

dates, and “Property of

----------

” must be stamped on base plate.

Gauge operating instructions are required on all Gauges. Each set of instructions must depict each step. Instruction sheets to be provided on standard 8?

x 11

papers with protective covers, and provision are made to store sheets under the base of the Gauge. Instructions must illustrate how the Gauge is to be loaded

& how each characteristic verified by the gauge is performed. Images must be pictures of the actual gauge, screen shots of the CAD model are not permitted in

the instructions.

Part must be secured using straight line clamps, blocks with clamps attached must be dowelled into position on base. Clamp tips are to be made of hardened &

ground steel & mounted on spring loaded straight line clamps.

Spring must be locked into position via two jam nuts with an appropriately sized washer

between the jam nuts & die spring

. Tips must adhere to drawing specifications for datum target zones. Clamps must locate directly over the datum pads. For

products that prohibit this,

Magna Seating

shall determine clamp location.

The socket head cap screw used to mount spring & clamp tip to the clamp shaft

must bottom out in the shaft of the clamp.

All nuts to lock clamp length must be double nutted, both at the clamp shaft & the spring & washer. Mounting of

toggle clamps with a jam nut must have the jam nut on the opposite side of the mounting surface than the toggle. Toggle clamp jam nut must have access

for removal, jam nut is not to be recessed into the material. The jam nut on the clamp housing must have LOCTITE Threadlocker Blue 242 to prevent the

clamp from

coming loose

and will also be

removable for

servicing.

Hardened &

Die

Washer

Jam Nut

Jam Nut

Clamp

Clamp

Clamp

Exhibit D

Ground Tip

Spring

x 2

x 2

Shaft

Jam Nut

Toggle

Springs must come in contact with the steel tip & shaft of the clamp, not the bushing / housing for the clamp. Spring gauge must be consistent throughout the

entire Gauge. Tips must be held in place using socket head cap screws & must not come in contact with the part.

Pins and or bushings requiring anti rotation locators must use a key or dowel pin (no screws or set screws allowed)

Anti rotation key.

Component gauges in excess of 28” in X Y plane & or 20” in Z plane & or excess of 50lbs must be supplied with a cart. All ass

embly gauges must be supplied

with a cart.

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

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GLOBAL GAUGE SPECIFICATION

PRIVILEDGED AND CONFIDENTIAL

Cart construction must be of 2” square welded tube steel & is to include two straight

castors & two swivel castors with locking feature. Gauge must be secured

on top with 90°

steel angle plates at each corner. Height of cart must be such that the base plate top surface to not exceed

3.5’ or be below 3’. Cart must be

painted navy blue.

a.

For Castors:

i.

Manufacturer: Blickle Castors & Wheels

b.

For small carts up to 70 Kg load capacity, use models as follow:

i.

LKPA-TPA 101K-FI-FK Light Duty Swivel Castors with stop-fix brake - qty 2

ii.

BKPA-TPA 101K-FK Light Duty fixed castors. qty 2

c.

For Medium carts up to 150 Kg.

i.

L-POEV 126K-FI-SB-FK 5

ii.

B-POEV 126K-SB-FK 5

Good tool making / gauge making practice must be adhered to. The following will not be accepted on the gauge build; No blind dowel holes, blind location

holes, shims, weld, and no glue. Gauge design should be such that all blocks are removable from the top of the Gauge for servicing & CMM inspection. All

mounting blocks for clamps or check pins must be made of an upside

down “T” style with socket head cap screws & dowels in the flanges of the “T” to secure

to base plate. All blocks,

for both clamps & check pins,

must be screwed & doweled to the base.

Minimum required is 2 bolts & 2 dowels per block.

All hand held attribute gauges to be stamped Go / No Go and print dimensions or specifications. All hand held attribute gauges included with a Gauge must

have a “Home” location or nest

.

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