Chief Delphi - usage of denso window motor

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Motors (http://www.chiefdelphi.com/forums/forumdisplay.php?f=52)

- - usage of denso window motor (http://www.chiefdelphi.com/forums/showthread.php?t=88830)

eedoga

27-01-2011 21:44

Re: usage of denso window motor

1 Attachment(s)

If your still interested check out this photo gallery. We cut two plates using aluminum, and then got spacers to put in between them We drilled holes in the black plastic thing, and bolted a gear to that. We then put the top plate on holding the plastic thing in place.

http://forums.trossenrobotics.com/ga...age.php?i=3734

I included an STP file as an attachment.

Edoga
2980

Steve Compton

03-02-2011 07:21

Re: usage of denso window motor

Hey Arthur, Nice work! Do you have any kind of CAD file you could share?

Quote:

Originally Posted by artdutra04 (Post 1000489)

If you have access to CNC machines (through your shop or via sponsors), you can machine your own sprockets. The Denso motors also do not like cantilevered loads, so you should always support the shaft with another bearing/bushing. Here's some 7075 aluminum sprockets with a Denso hub pattern that I machined last year for 228.

The Denso motor, sprocket, and shaft support (with Delrin bushing).

Steve Compton

03-02-2011 07:23

Re: usage of denso window motor

opps - there it is, thanks!

Quote:

Originally Posted by artdutra04 (Post 1008264)

Attached is a STEP file of the sprocket I machined in the photos above. All I did was download a regular sprocket model from McMaster-Carr (they have CAD models for most of their hardware (screws, nuts, shoulder bolts, sprockets, etc) on their website), use calipers to measure the metric output "spline" of the Denso motor, draw it on the part, and extrude cut it.

To machine it was a four step process. The first thing I had to do was machine a fixture plate out of 6061 aluminum. Then I machined about 90% of the sprocket features onto the 1/2" 7075 aluminum raw material. Then I took that part out, bolted it to the fixture plate upside down, and machined the sprocket teeth into it. The last step is to use a lathe or hand file to bevel the teeth.

There is nothing in this CAD model to keep the sprocket on the shaft of the motor or to support it for cantilevered loads. In the second photo I previously posted, our solution was to machine a custom bushing out of Delrin to both support the shaft and to keep the sprocket laterally in place on the shaft.

Brandon_L

05-02-2011 23:06

Re: usage of denso window motor

Quote:

Originally Posted by ttldomination (Post 997330)

What my team has done is taken the cone shaped outside part of the coupler and ground away some of the material. This allows a 1.125" sprocket to slide in there nice and snug. Screw in the sprocket and you're set.

Also, the output shaft is a 8mm key shaft. You can purchase this shaft from AM or another provider and use the 8mm key AM hub found here, and attach a sprocket to that.

Hope that helps,
Sunny

Is there a link to the 8mm key shaft on AM? I can't seem to find it

ttldomination

05-02-2011 23:12

Re: usage of denso window motor

Quote:

Originally Posted by Brandon_L (Post 1016607)

Is there a link to the 8mm key shaft on AM? I can't seem to find it

Actually, the shaft is a 8mm radius. We've found success using a .625" shaft.

- Sunny

Brandon_L

05-02-2011 23:14

Re: usage of denso window motor

Quote:

Originally Posted by ttldomination (Post 1016612)

Actually, the shaft is a 8mm radius. We've found success using a .625" shaft.

- Sunny

Guessing this isn't on AM or some other website, already with a key slot in it?

clayman

05-02-2011 23:29

Re: usage of denso window motor

1 Attachment(s)

We are getting custom sprockets much like Arthur's machined. I don't know if it will help anyone, but here is our base technical diagram.

yara92

23-02-2011 16:57

Re: usage of denso window motor

Is These chain #25 Or #35 series
the next quation do you have base technical diagram

clayman

23-02-2011 18:07

Re: usage of denso window motor

It's for #35 chain, and the diagram is already attached on my previous post.

yara92

24-02-2011 08:15

Re: usage of denso window motor

Yes, I meant the sheet metal

kinghashbrown

24-02-2011 10:52

Re: usage of denso window motor

In the past my team has made stepper shafts that are right OD for the KOP window motor adapter and then are turned down on a lathe to .5, then we ether had one of our sponsors key the shaft or we did it on a bridgeport at our shop.

it has worked well for us in the past. but you do want to support the other end of your shaft and the KOP adapters have broken on us before so spares were always good to have.

CordovaRover

22-03-2011 12:05

Re: usage of denso window motor

We used this motor this weekend at the peachtree regional and had no success with it. Needless to say we didn't use a sprock. One of our sponors is willing to machine the sprocket for this part if we had it in a CAD file. Can you share the file you have with use so that we may have this part made for our next regional in Knoxville?

CordovaRover

22-03-2011 12:06

Re: usage of denso window motor

Quote:

Originally Posted by Steve Compton (Post 1014766)

Hey Arthur, Nice work! Do you have any kind of CAD file you could share?

clayman

22-03-2011 14:55

Re: usage of denso window motor

Read the entire thread ;)

http://www.chiefdelphi.com/forums/sh...4&postcount=25

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