Engine Block Design And Assembly in Solidworks

 Engine Block Design And Assembly in Solidworks

AIM:

1. To Design parts of Engine Block

2. Assemble Them

3. Create Animation

 

Method:

Parts of Engine Block-

1. Connecting Rod :

On the Front  plane WE have drawn The two circle below and then extrude them upto 20mm

Then Again in the front plane - sketch we joined the two circle by spline and extrude them as middle upto 12 mm

 

 

Then on the right plane we drawn a straight slot and cut extrude this through all by offseting 6mm 

Then we mirror this on the other side

 

Now our connecting rod is ready.

2. Crank_shaft  :

 

 

First Sketch : on Right plane

Boss Extrude 25mm

Then sketch on previous plane and boss extrude upto 8mm

Again sketch below structure and boss extrude upto 15mm

Boss extrude -4 :

Now we have to mirror the below surface so first select the round surface and sketch

 

Boss-extrude-5:

First select the upper surface and convert the sketch entity and rotate it by 90 degree with x axis.

Then extrude this

Boss-Extrude-7 :

 

Boss-extrude-8:

Boss-Extrude-9:

Now we will mirror the total portion

Now our crank_shaft is ready.

3. Lower Block :

To draw this first we have seen a symmetry between left and right , we will first draw one portion , mirror this and boss extrude one portion upto the other.

Boss-extrude-1 :

Boss extrude the sketch on front plane in two direction one at 20mm and other at 5mm.

Boss-Extrude 2 :

 

Boss extrude the sketch upto 5mm

 

We have create a plane 140.50mm distance from front plane 

Lets mirror the structure with respect to plane-1

 

Now boss extrude the structure upto the next surface

 

Now our Lower Block is ready.

 

4. Upper_Block :

 

Let us sketch 2D drawing on Top plane 

Box extrude this upto 110mm

 

Lets draw the stips at the side and boss extrude this upto 3mm

Lets copy this by linear pattern with 7mm each distance and 15 part

 

Now upper_Block is ready

5. Piston_pin :

 

 

First Drawing the surface on front plane box extrude this as middle face and thin feature 2.5mm and extrude upto 49mm.

Then chamfer one surface 0.5mm with 45 degree

Now piston pin is ready

6. Piston :

First draw the sketch on front plane and then revolve this with respect to y axis

 

We have drawn this again on front plane 

 

 

Now cut extrude this two element one by one 

Now we have to draw a piston pin holder in between the two holes

 

Then boss extrude this upto surface 

 

Then mirror this with respect to front plane

 

Now our piston is ready

 

Material selection :

Piston :

 

Piston_pin :

Upper_Block :

 

Lower_Block :

 

Crank_shaft :

 

Connecting Rod :

 

Now Assemble :

First place the lower and upper block like this 

Then two parallel surfaces along y and z direction collinear

 

 

Then To make the upper block at the middle select advanced mate - width

 

Now piston and piston pin 

Select below surfaces and cocentric

To made the piston pin middle of the pin holder use advanced mate - width

Now same for connecting rod and piston-piston pin assmebly

 

 

Now we have to assemble the crank-shaft with upper and lower boxes

 

Now we have to connect the piston-pin-connecting rod assembly with crank_shaft

 

Now copy with mates piston-pin-connecting rod to other positions of crank_shaft

Now assembly is complete

 

Animation :

Click on Motion study on lower left position. Then from motion study properties we can choose number of frames

 

We have to choose a motor to rotate the model with respect to the element

 

Then click on play and then calculate

 

ANIMATION :

 

Engine_Block_Assembly_Animation