Page 225 - Subyek Computer Aided Design - [David Planchard] Engineering Design with SOLIDWORKS

Engineering Design with SOLIDWORKS® 2018 Fundamentals of Assembly Modeling

The ROD, PLATE, and 4MMCAPSCREWS are free to ~l~ l~l$ i"'I >

translate along the z-axis. Their component status remains v·

under defined, (-) in the GUIDE-ROD FeatureManager. c:!fl GUIDE-ROD (Default< Display State-1 >)

• ~I History

The GUIDE is fixed (f) to the assembly Origin. The flange ifi:J Sensors

• 00 Annotations
bolts are fully defined since they are mated only to the

il'] Equations
GUIDE.
[!] Front Plane

, 1,. [!] Top Plane

[!J Right Plane

-;Q~ Understand how Mates reflect the physical behavior in L Origin

an assembly. Move and rotate components to test the mate • ~ (f} GUIDE<1 > (Default<<Default> _Display

behavior. The correct mate selection minimizes rebuild time • ~ (-) ROD<1 > (Default< <Default> _Display S

• ~ (-) PLATE <1 > (Default< <Default> _Display
and errors in the assembly.

• ~ flange bolt<1> (MB-1.25 x 30<<M8-1.25 x

• ~ flange bolt<2> (M8-1.25 x 30<<M8-1.25 x

Tolerance and Fit • ~ (-)4MMCAPSCREW<1> (Default<<Defaul

• ~ (-)4MMCAPSCREW<2> (Default<<Defaul

The ROD travels through the GUIDE in the GUIDE-ROD • ®® Mates

assembly. The shaft diameter of the ROD is lOmm. The hole

diameter in the GUIDE is lOmm. A lOmm ROD cannot be

inserted into a 1 Omm GUIDE hole without great difficulty.

(Press Fit.)

Note: The lOmm dimension is the nominal

dimension. The nominal dimension is approximately

the size of a feature that corresponds to a common

fraction or whole number.

Tolerance is the difference between the maximum and

minimum variation (Limits) of a nominal dimension

and the actual manufactured dimension.

Example: A ROD has a nominal dimension of

lOOmm with a tolerance of± 2mm (lOOmm ± 2mm).

This translates to a part with a possible manufactured

dimension range between 98mm (lower limit) to

102mm (upper limit). The total ROD tolerance is

4mm.

Note: Design rule of thumb: Design with the

maximum permissible tolerance. Tolerance flexibility

saves in manufacturing time and cost.

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