(1) injuries caused by rotating parts of mechanical equipment. The main injuries are strangulation and object strike;

(2) injury caused by linear movement of mechanical equipment parts. This kind of accidents mainly include: crush injury, crush injury and crush injury;

(3) damage caused by the tool. The damage caused directly by the tool, including the first two types of damage, is no longer repeated. However, it should also be noted that the debris produced by the cutter during production can also cause injury:

① scald. The temperature of newly cut debris is very high, up to 600-700 ℃, which is easy to cause scald;

② stab and cut. All kinds of metal chips have sharp edges, which can cause stabbing or cutting. Flying chips can damage your eyes;

(4) the processed parts are not fixed firmly, throwing out the machine tool and injuring people;

(5) injury caused by improper use of hand tools.