Creation of spline threads and removal of material assembly

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1

Hello

I am asking you because I am having a problem in the design and therefore the assembly of 2 pieces.

The 1st piece is a kind of wire that I created with the spline and for its thickness, I created a plane at its end where I built a circle of the desired radius on it and thus, I was able to build the wire along the spline. However, I can't have the 2 ends tengant (which I want) because I need the 2 ends to be flat, so I cut off one of the ends by specifying the dimension i.e. the distance in y (vertical) between these 2 ends. I then did a repetition following a plane (in both directions). 

Then, the 2nd piece is an extruded square with a hole in its center so a removal of material of a certain thickness. I then want to insert the 1st part inside this square (in contact with the edges of the material removal) during assembly. But, before all that, I have to create the yarn in the same way, so of course using the same sketch as the 1st piece and then do the material removal. However, the 1st piece (the wires) do not fit into the place reserved for them, namely the removal of material. I have to do this on all 4 sides of the material removal of the square.

I was able to put the same dimensions but the problem may come from cutting part of the wire at one end but in the end the dimensions remain the same. 

I'm going to attach the 2 pieces as well as the assembly to make it clearer because explaining like that, it's still complicated to design. I'm also going to put screenshots.

Here below, a picture of the sketch of the thread then one with the place where I cut to make the surface of the end flat then one of the pattern (repetition of the threads (40 threads)), then a picture of the square showing the removal of material corresponding to the threads where I proceeded in the same way as the threads (20 of each thread). side of the plan so 40 in total and esnuite I made miror and the same for the 2nd side) and finally a cross section of the square with the sketch of the thread.

If anyone has an idea of how to do this please, this could help me tremendously.

Thank you in advance for your answer.

Crdt,

David.


son.sldprt
2

Here is attached the square called moulage_corps.

In summary, I want the threads to fit into the removal of material reserved for them in the square (moulage_corps)

Thanks for everything.

David.


moulage_corps.sldprt
3

Hello @ David

you have solved your problem in part

The only problem it seems to me is your removal of material which via your endpoints your removal of material is not complete for this your sketch would have to come out of your room

and your walkthrough lengthen  this Spline 

or take your piece and via combine material removal create this channel 

the rest rehearsals 

Laying a diagonal in construction line and symmetry 

another and re symmetry 

with or without splines parts

@+

 

5 Likes
4

Hello David,

I don't know if I understood all of them but here is a tutorial with your parts.

zip with ASM and PRT tutorial

Kind regards


nouveau_dossier_2.zip
1 Like
5

Hello David,

A small correction after a little sleep, you shouldn't make a symmetry of the repetition for two resonates.

1 The software creates a symmetrical part (in this case it is not needed, but it will appear as such in the nomenclature)

2 There are two times the play where it was created.

It is therefore necessary to do a second repetition before the repetition was circulating.

Kind regards

1 Like
6

Hello gt32,

Thank you for your answer. The problem therefore comes from the sketching of the threads for the removal of material (in the square). I didn't really understand the fact of taking my piece and creating the channel via the removal of material. In the 1st room where I create the yarn? How do I create the sketch of the removal of material knowing that I want to create it either in the middle of the small square (hole) of the 2nd piece.

I'm going to spend the day again trying to find a solution.

Thank you again for your answer.

David.

7

Hello Bruno,

Thank you for your answer. I'm going to look at your zip and tutorial hoping to unblock myself.

I was thinking that too about the symmetries but counting the number of threads, I have 40. Then he creates  2 in the same place without us seeing any difference.

What I did is create the piece so in the center as you can see on the cross section and then repetition of 20 on one side and 20 on the other and then symmetry and I made the 2nd sketch on the other side of the square and the same for the rest. So I will have to make 1 sketch on each side of the square knowing that my sketch may not be good as gt32 pointed out. 

I'll see how to get out of it.

Thank you again for your answer.

David.

8

Your tutorial Bruno is really good. You understood my problem well. Thank you for the time spent helping me, I will try to follow each of the steps.

Kind regards

David.

1 Like
9

Hello David,

I don't know if I understood everything about your problem, but it wouldn't be because your wire is not round? I made a modification as an attachment


moulage_corps.sldprt
10

Hello Gilles,

I created a circle to do the swept boss but maybe I did it wrong.

Thanks for your file, I had to find a way to open the file which is from an old version of solidworks to the 2019 version and I was able to see the 4 material removal and 4 extrusion but I can't see the original part . It tells me imported (so imported part I imagine) and then the functions you have made in addition. If there is a way to recover the entirety, I am a taker.

But, with the modifications you made, I can see a little bit how you proceeded.  Did you make the modifications from my part by changing sides or not? For example, the distance between the ends of the wires (material removal).

Thank you again for your answer.

Kind regards

David.

11

I forgot to attach a screenshot of what I have when I opened your file.

Thank you.

12

Oh yes, I'm in 2020, in fact I did a circular sweep with your sketch, I lengthened the piece obtained at the ends, I took over your repetition function, I replaced the symmetries with a circular repetition, and I ended up with a combination of subtracting volumes

 


sans_titre1.jpg
1 Like
13

All right. Thank you very much, I'm going to try this weekend hoping to succeed.

Yours truly.

David.

14

Hi all

I still haven't been able to solve the problem despite your help. After trying a number of times, I gave up on this problem but I really need to fix it.

It is impossible for me to add plans directly in the assembly to link the wire and the drawing of the material removal that hosts the wire. I don't see how you did it Bruno (following your tutorial).

I lengthened the ends of the films but it's the fact of linking the 2 sketches so that they fit together perfectly that I can't do. The fact that the surface of the ends of the wires is not completely circular is also a problem (as it is a spline).

Would it be possible to have more information on this and an explanation or reexplanation of how to proceed step by step please?

 

Thank you in advance for your understanding and help

David.

15

Hello

I put the parts and a tutorial.
I don't know what else to do. The parts sent functional as you wanted?
Apart from symmetry.

16

Hello Bruno,

Indeed, and I thank you for that. When opening the assembly you sent me, some errors regarding the creation of threads appeared and I don't know where they can come from. I will put below a screenshot of what is displayed in the tree.

I followed your tutorial but I was blocked from the beginning because I didn't see how to create a plan directly when you edit a part (the mold) in the assembly. The features to create the plan were not available.

So I tried to do it again but it blocked me and I couldn't correct the errors that were displayed and so I abandoned the project in the meantime.

I didn't want to bother you again after all the elements you gave me to solve my problem.

Thank you again for the time you spent and that you spend explaining to me. 

Kind regards.

17

Hello

If I understood correctly, you want to have housings in the plate identical to the wire.

Under CATIA we would have used a Boolean assembly operation, I found under SW "Cavity" which seems to do the job.


cavity.7z
2 Likes
18

Hello

That's exactly it. Perfect, thank you so much I'm also going to dig into this method to see how to use this feature of solidworks.

Thank you for your file but as I have the 2019 version of solidworks I unfortunately can't open it.

Kind regards.

19

Hello I'm in 2019 also  it's a zip folder and there are  the three files?

 

20

Hello

It's weird, I tried to extract in several directories but the cavity folder is empty. However, in the zip, the 3 files are there (assem1, threads, molding). 

Also, when I try to open the assembly for example directly from the zip, I encounter this error message:

I thought it was a version problem because in the zip, next to the names of the pierces, the date 2020 appeared. But, normally, in all cases the extraction must be done, which is strangely not the case here. 

I'll see if I can find a solution.

Thank you again for your help.

Kind regards.