You may need a spring in your home or work place, but don't have a suitable one locally. If you make a simple device from accessible and inexpensive materials, then with its help winding springs turns into a very simple matter. Any adult can do this kind of work.
Will need
Materials:
- M12 threaded rod, 350 mm long;
- long or short screw, screwdriver;
- a piece of wire;
- extended connecting nuts M12.
Tools: wooden blocks, vice, grinder, drill, file, curved pliers, wire cutters, grinder, etc.
The manufacturing process of a device for coiling springs and its application
In a wooden block of square cross-section, we drill a through hole with a diameter of 12 mm in the longitudinal direction in the center and cut it into halves. We place a 350 mm long M12 threaded rod in one semicircular groove and cover the other.
We clamp parts of a square block with a rod inside in a vice and make a small horizontal flat not far from one of its edges.
We center the flat and drill a hole with a diameter of 5 mm.Insert a long screw into the hole.
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Not far from the first flat, we make a second, smaller one, in which we drill a hole with a diameter of 2.5 mm for a wire with a diameter of 1 mm. Using a file, we grind off some of the threads adjacent to the small hole.
We clamp the extended M12 nut in a vice and, stepping back from one end by 1/3 of the length, make a transverse slot almost to the opposite side of the threaded hole, and then a longitudinal slot perpendicular to the first.
We screw a threaded rod into the nut with a recess until the center of the small hole in the rod aligns with the middle of the pad of the extended nut and drill a hole with a diameter of 2.5 mm in it.
We screw another elongated nut onto the threaded rod, but you can do without it.
Using a file, we correct the pad in the nut with a recess and expand the hole in it. We insert the end of the wire into the hole of the platform from the outside so that it reaches the middle of the hole in the rod.
We begin to rotate the threaded rod by the long screw counterclockwise, but we only manage to make 1-2 turns due to strong resistance. Let's try filing down the take-off area on the nut, rounding the edges, widening and redirecting the hole, and repeating the process.
After this modification, the process of winding the spring went so easily that instead of a long screw, you can get by with a short one and even a screwdriver.
To remove the coiled spring, pry up the last coil with a screwdriver, pull out the bent end of the wire from the hole in the rod and bite it off with wire cutters. We remove the spring from the rod by rotating it clockwise by hand or with a drill.
We bite off the non-adjacent parts of the last coils of the springs, stretch the middle coils and use a grinder to grind the outer coils or bend them perpendicular to the rest.
