Ok, here's where I'd start, based on your initial question (and a bit on the responses above). Your FIRST challenge will be to decide just WHAT kind of information you need. Not already being familiar with the field, its hard for you to know what you'll need to know - kind of circular, I know. STILL its your FIRST responsibility to learn enough about the field to begin to decide what questions to ask. You might start by buying a college text on general drafting, as often these start out with mechanical drafting concepts, and branch out from there. At some point you may want to register for continuing education courses or even a full-blown junior college 2 year or even a bachelor's 4-year degree program. In any case, there's no substitution for education. Yes, it may be a bit expensive, depending on the level of education you decide you need, but believe me, ignorance is far more expensive !
THEN, you'll want to get education or on-the-job training in a basic CAD program designed for either generic use or might have vertical add-ons that cater to mechanical design. Again, however, the responsibility to learn the tool is yours alone. Once you've learned about the tool, there are industry standards for how such a tool is used BY YOU to construct an Engineering Drawing. If your company is trying to gain this expertise, their only 2 choices are 1. pay/train you to get training, or 2. hire experience. No shortcuts here, either. If you're any good, you'll charge not only for what you know but for what you can DO, too! So will your candidate with "experience".
Finally, it will be up to you to decide how to apply your training, education, or experienced hire. You will find an additional challenge in deciding how to interface Engineering with Design with Drafting, and how to interface all of that with manufacturing, and finally how to market the designed product, or how to get the designed and manufactured product to your customer. Again, this is your (your company's) responsibility.
You may have noticed the emphasis on where the responsibility lies. This is NOT to say that your goal can't be achieved, actually, just the opposite ! Meeting these challenges will be VERY rewarding !
Good luck, and let us know how it goes ?
C.
