Sharpening machine. Drawing, description

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Sharpening machine. home workshop

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First of all, a few words about the main characteristics of the grinding machine. The maximum sharpening length is 600 mm, which is quite enough for most carpentry hacksaws.

The sharpening angle can be selected within the widest range, depending on the tool used - the grinding wheel.

sharpening machine

The basis of our machine, however, like any other, is an electric motor. Its shaft is the spindle of the machine: an abrasive wheel is attached to it. An indispensable condition is that the grinding disc must be enclosed in a fence.

ETSh-1 grinding machine (click to enlarge): 1 - bed (cast iron), 2 - stand (steel 45), 3-stand of the ruler (steel 45), 4 - stopper (steel 45), 5 - clamp (steel 3) , 6 - carriage with four rollers, 7 - guide (steel angle 25 x25 mm), 8 - eccentric clamp, 9 - handle, 10 - guard, 11 - protective cover, 12 - electric motor, 13 - stroke limiter, 14 - hinge, 15 - bushing, 16 - running nut, 17 - rocker arm, 18 - counterweight (lead), 19 - horizontal movement handwheel, 20 - horizontal movement reference scale, 21 - carriage horizontal movement slide, 22 - coupler, 23 - handle, 24 - ruler support (steel 3)

The bed is an iron casting, however, the use of a steel welded base is also acceptable. A guide ruler with a tool holder is mounted on the front part. The engine is mounted on a channel, the latter is seated on a stand fixed in the frame. The running nut and the threads cut on the rack allow you to lower and raise the engine. In the required position, it is centered with a locking screw. The sharpening angle of the tool can be selected by turning the electric motor around the stand.

The tool is fixed in the machine with a guide bar. Fixing hacksaw blades - two eccentric clamps.

Author: A.A. Boytsov

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