Showing posts with label machine drawing. Show all posts
Showing posts with label machine drawing. Show all posts

Friday, November 9, 2018

Air-Operated Arbor Press

So here is a second design problem from " Machine Design Drawing Room Problems". This design problem was relatively short, 7 pages, so it is posted complete here. Nothing new about an arbor press but it is interesting to see the design steps that go into producing a marketable product.






Machine Design Drawing Room Problems

Here is an older but still interesting book for the machine designer. " Machine Design Drawing Room Problems" by C.D. Albert, was first published in 1923 by John Wiley & Sons. This third edition was published in 1947.

In addition to a good number of specific design problems of various pieces of equipment, the text also covers engineering materials used, and without getting to deeply into the math, outlines the calculations necessary to build machines that will stand up to the required specifications.

To stay with the topic of the previous post, I am posting here part of a design problem titled "Combination Punch And Shear". This chapter is 32 pages so I will just post part of it here, the pictures, and the punch and shear tooling. If someone would like to see the whole design problem, message me, and I will post a pdf of the complete chapter.

Machines like this are not built any more, the modern hydraulic ironworker does similar work in a smaller package. It is still amazing the amount of power that can be achieved from a heavy flywheel, powering a simple eccentric, through a large speed reduction.







Friday, August 18, 2017

A Manual Of Machine Drawing And Design

Well it has to be one of the soggiest summers in recent memory. More rain days than non-rain days and this weekend is no exception. Fortunately with the new roof I can continue to putter away on the front enclosure assemblies for the breezeway project.

Slow starting today, thought I would upload a great old book, "A Manual Of Machine Drawing And Design". Kudos go out to the Cornell University Library digitizing staff. All the very best uploads to the internet archive are done by the Cornell staff. The digitized volumes are spotlessly cleaned up and centered, except for the content of course, you would never know the volume is 100 years old.

There are lots of old books on drawing and machine design out there, this is one of the best I have come across. This was written when the steam engine and locomotive were still king, so much of the instruction centers around the assemblies involved in this technology. There are enough measured drawings at the back to build the complete boiler and engine assemblies for a locomotive. This may not be everyones cup of tea, but it makes for interesting reading. There is some math involved, but this is unavoidable in a volume on machine design.

Lots of very clean and mostly measured drawings, if you like old tech you will love this. You can download "A Manual Of Machine Drawing And Design" on my Books - Free Downloads page, it is 13 MB in pdf.