Hexagon nut is one of our common nuts. It is used with bolts and screws to connect and fasten mechanical parts. It has internal threads and is used with screws to transmit motion or power. Among them, type 1 hex nuts are most widely used, and grade C nuts are used on machines, equipment or structures with rough surfaces and low precision requirements; Grade A and B nuts are used on machines, equipment or structures with relatively smooth surfaces and high requirements for accuracy. The thickness m of type 2 hex nut is relatively thick, and it is often used in occasions where assembly and disassembly are often required. The thickness m of the hexagon thin nut is relatively thin, which is mainly used in the case where the surface space of the connected parts is limited.
A nut is a nut, which is screwed together with a bolt or a screw to play a fastening role. It is an original that must be used in all production and manufacturing machinery. How should hex nuts be processed? Here, the quick screen editor briefly introduces the processing steps of hex nuts.
1. Draw lines to find out the center of hexagon, punch holes for proofing, and draw inspection circles or inspection frames.
2. Calculate the diameter of the bottom hole according to the formula d = D – P, select a suitable drill to drill the bottom hole (drill the center hole with a small drill before drilling the bottom hole), and chamfer both sides of the bottom hole.
3. The M12 thread shall be tapped according to the correct method, and oil shall be added for lubrication during tapping.
4. Check whether the diameter of the blank round rod is qualified according to the formula rod D round rod = d-0.13p.
5. First, the hexagon head of the bolt shall be processed in the same way as the nut.
6. Then set M12 thread according to the correct method. Add oil and lubricate the thread and cover the thread to the bottom.
7. Chamfering and trimming of nuts and bolts.
8. Deburring, comprehensive re inspection and polishing of workpieces.