Structural modeling and Design -- a practical summary of the functions of rotary cutting and fillet chamfering in feature forming of SolidWorks software (drawing a countersunk screw hole)

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Catalog

0 introduction

1 Rotary cutting function

2 Fillets and chamfers

3 summary

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0 introduction

         In this blog post, we will continue to learn about the rotation cutting in feature forming , And fillet and chamfer functions , Draw a countersunk screw hole with the rotary cutting function , And demonstrate how to use fillet and chamfer , Also cooperate with actual combat practice , Learning from scratch .

1 Rotary cutting function

         The rotary cutting is similar to the rotary boss matrix , The former is to reduce the material , The latter is to add materials , Let's use the rotation resection function , Draw a countersunk screw hole .

First , Draw a cube with equal sides

—— Click the forward reference plane , Draw a two-point rectangle , The starting point is the origin

—— Select two adjacent edges of the rectangle at the same time , Set the attribute to equal length , Use the intelligent dimension tool to set the side length to 25mm

—— Click to stretch the boss matrix , The depth is set to 25mm, Click ok , Get a side length 25mm The cube

         Let's do a rotational resection in the middle of the cube , Because the three existing datum planes are not in the center of the cube , So we need to establish a datum plane in the middle of the cube , Let's look at the specific steps ：

—— Click the reference geometry... In the feature bar , Select datum from the pop-up menu

—— At this time, the first reference in the left property bar is activated , Click on a face of the cube , This face is added

—— Click reverse isometric , Set the distance to 12.5mm（ Because the side length of the cube is 25mm）

—— If you don't want to deliberately set the reverse isometric distance , You also want the datum plane to be in the middle of the cube , You can select the first and second reference faces , Set the attribute to bilateral symmetry

The next step is to draw the rotation cut ：

—— Click the newly created datum , Start sketching

—— Use the midpoint constraint of the upper and lower edge lines , Draw a construction line （Alt+C Shortcut key ）, As the axis of rotation

—— Draw the cross section of the countersunk screw hole , Use the intelligent dimension tool to set the dimension , Counterbore radius 7.8mm, Screw hole radius 4.5mm, Counterbore angle 45 degree

—— Click rotate to cut , Click is , The sketch closes automatically , And rotate to cut .

Rotate to view the current entity , Is it convenient to see the internal structure ？ We can use the section view to view ：

—— Click the datum plane in the middle of the cube

—— Click the section view button in the view tool （Section View）, The section view is visible

—— In the left attribute bar, you can set the distance between the section and the datum plane

—— Click the OK button , Observe the section view （ Only the function of the parts window , No cutting model ）

—— Click the section view button again , Cancel .

2 Fillets and chamfers

Continue to build on the cube above , Draw rounded corners and chamfers

—— Click the fillet button , The first column of the property bar is the fillet type , The first common

—— The second column of the property bar is the item to be rounded , Select an edge , Then the right angle of the edge line becomes a rounded corner , You can also click on a face , Then the right angles of the edges on the face become rounded corners

—— The radius of the fillet can be set in the property bar

—— Click the chamfer button , Click on the edge of the cube , You can also click on a face , The operation procedure is similar to that of fillet ：

3 summary

         This blog post summarizes the use of rotation cutting and fillet chamfering functions in feature forming , It used to be thought that drawing a screw hole in structural modeling and design required surveying and mapping a lot of dimensions , Drawing a screw hole entity is troublesome , In fact, I have mastered some practical functions of the software , It is easy to draw some seemingly not simple structures , Continue to learn , Make persistent efforts .

As in the 202206201600, Filed

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