冲击电动扳手主要是初紧螺栓的，它的使用很简单，就是对准螺栓扳动电源开关就行。
The impact electric wrench is mainly used for initial tightening of bolts, and its use is very simple, which is to align the bolt and pull the power switch.
电动扭剪扳手主要是终紧扭剪型高强螺栓的，它的使用就是对准螺栓扳动电源开关，直到把扭剪型高强螺栓的梅花头打断为止。
The electric torque wrench is mainly used for final tightening of torque shear high-strength bolts. Its use is to align the bolt and pull the power switch until the plum blossom head of the torque shear high-strength bolt is broken.
电动定扭矩扳手既可初紧又可终紧，它的使用是先调节扭矩，再紧固螺栓。
The electric fixed torque wrench can be used for both initial and final tightening. Its use involves adjusting the torque first and then tightening the bolts.
电动转角扳手主要也属于定扭矩扳手的一种，它的使用是先调节旋转度数，再紧固螺栓。
Electric angle wrenches mainly belong to a type of fixed torque wrench, which is used to adjust the rotation degree first and then tighten the bolts.
电动角向扳手是一种专门紧固钢架夹角部位螺栓的电动扳手，它的使用和电动扭剪扳手原理一样。
Electric angle wrench is a type of electric wrench specifically designed to tighten bolts at the angle of a steel frame, and its use is the same as that of an electric torsion wrench.
气动冲击扳手
air impact wrench
用于金属模具修理的夹具
Fixture for metal mold repair
气动冲击扳手，冲击锤是与气动马达直接连接的。电动冲击扳手不能用于高热量的环境 冲击扳手用于在金属模具上拧紧/拆卸夹具。
Pneumatic impact wrench, the impact hammer is directly connected to the pneumatic motor. Electric impact wrenches cannot be used in high heat environments. Impact wrenches are used to tighten/disassemble fixtures on metal molds.
原理
principle
通过高压气体（一般为6.2Kgf）驱动气动马达机构旋转，再通过转子输出打击机构，打击机构带动打击轴形成循环往复的前后及旋转运动。
The pneumatic motor mechanism is driven to rotate by high-pressure gas (usually 6.2Kgf), and then output to the striking mechanism through the rotor. The striking mechanism drives the striking shaft to form a cyclic forward backward and rotational motion.
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