When bolts and nuts are used for fastening, the following standards must be followed.
2022-07-25
When bolts and nuts are used for fastening, the following standards must be followed. When assembling mechanical parts, there are many operations to tighten threads. In the fastening operation, tools play an important role. Only by using the most suitable tools correctly can we carry out the correct operation, which can not only form the best mechanical function, but also improve the operation efficiency. If improper tools are used or wrong methods are adopted, the operation will not only be incorrect and inefficient, but also cause injury or damage to products and tools.
There are many kinds of fastening tools. Here are the most commonly used tools to explain their basic operations and the basic matters of the construction methods of fastening and loosening operations.
1. Ordinary fastening operation
The ordinary fastening operation specified here refers to the operation of simply fastening without torque limitation when using wrenches and other fastening tools for fastening mechanical parts through bolts, nuts, washers, etc.
1) Wrench
When using a fixed caliber wrench, it is very important to use a tool that conforms to the size of the bolt or nut of the working object. If it is too large, the bolt head will be deformed and the wrench cannot be clamped.
In addition, the length of the wrench is determined according to the force applied to the wrench, so methods such as connecting the extended handle and superimposing with another wrench to apply a greater force cannot be used.
Mr. andy