When working with rebar for pouring the Foundation or laying nets it is necessary to bend at different angles. If you use only a hammer and anvil, the preparatory process before the pouring of concrete will take days. Repeatedly to accelerate the speed of work on the valve by using a homemade bending machine.
- the strip or plate section 30 mm;
- bearings with outer diameter of 40-50 mm – 2 PCs.;
- round blank for turning with a diameter of 40 mm;
- round 15 mm;
- bolts M10 hex – 2 PCs.
The process of making bending machine
Before beginning the Assembly of the machine will need to be turning, using as the blank disc 40 mm. From it is sleeve with a height of 30 mm with an inner bore of 15 mm. Also need to grind out 2 bushings of the fungus. The outer diameter of the thin portion must be equal to the diameter of the inner race bearings available. The diameter of the cap of the fungus is 5-10 mm longer. Bushings drilled hole of 10 mm and made of sweat under the bonnet bolts. Also from logs of 15 mm you need to make the finger into a large Bush. It is necessary to slightly grind it to be easily entered her hole.
The lathe bed is made of stripes or thick steel plate.
It consists of two rectangular blanks of different size. Smaller must have sufficient area to accommodate two selected bearings. Large is wider and longer than 30-40 mm. One corner of the lower plate is trimmed and kruglitsa inside so that it with a gap of 1-2 mm, you can make the sleeve with a diameter of 40 mm.
Billet bed are added together and trim at the corner opposite from the fillet, then weld a solid seam and strip welding.
In the frame of the machine is 3 holes. The first is to drill out the pin for installation of the large bushing.
It is wide at the bottom plate at an angle so that the sleeve is approached skreplennoe corner of the top plate with a gap of 1-2 mm. Then drilled 2 pocket holes on the smaller plate for the installation of thrust bearings on the bolts M10.
In blind holes tapped. Then tighten the bolts worn bearings and bushings fungi.
For the big bushing is welded to the shoulder, carved from used for the manufacture of the frame metal. On top of it is welded, the emphasis of this same material. The edge must not reach the hole in the sleeve of 12-15 mm. At the end of the focus needs to cut the notch. Then the shoulder is extended logs. It is welded at a slight incline. It is desirable to heat the notches stop the cutting torch and tempering, after cooling in water.
In the sleeve with handle hammered finger, and it is installed in the hole on the frame.
The machine is clamped in the vise. For bending rebar or rods are placed between the bearings and the finger is then bent by turning the handle.