There are many types of pliers, and they are widely used. They are indispensable hand tools for clamping and cutting workpieces in various industrial assembly, machine repair and installation. Can use less force to generate more clamping force to help finish the job. Here are some commonly used pliers.
1. Pipe wrench
The pipe wrench refers to a tool used to clamp and rotate steel pipes, and the connection between pipes is completed by clamping and twisting the pipes. When using, pay attention to the choice of specifications; the opening of the head of the pliers is equal to the diameter of the workpiece; use force after the pliers squeeze the workpiece tightly to avoid slipping; use force within the strength of the pipe wrench, and keep the jaws and adjusting ring clean. Before use, check whether the locking pin is strong, whether there are any cracks on the head and handle of the pliers, if there are any, they should not be used. After use, clean it in time, apply anti-rust oil, and place it in the appropriate position.
The clamping clamp is mainly composed of base, post, rotating arm and bolts. It is widely used in the boiler pipeline installation project, and it is used to make threaded buckles for pressing pipelines. Pliers are common tools used to clamp metal pipes for bending and sawing. With the rotary pen and screw rod, you can repair bolts, press the pad, reverse the camera, repair inner and outer tires, etc., and do some auxiliary maintenance work. When the clamp clamps a large pipe, a pipe wrench should be added at the back to prevent the pipe from slipping off and damaging the pipe and jaws; when clamping the pipe, it should not be too strong, but should be tightened gradually so that the pipe is not clamped flat or the teeth of the pliers do not corrode the pipe too much. on the screw part.
3. Bolt pliers
A bolt cutter is a tool used to cut wires or thicker wires. Pay attention to the safe distance between the metal part of the head of the pliers and the current-carrying body when working with electricity, before use, you must check whether the insulation of the insulating handle is damaged, and you cannot cut the current-carrying wire and the neutral wire at the same time with a knife to avoid short circuit. Also, when using pliers, don't overload them, but do what you can. Remember not to twist the pliers all the time and it is easy to break and damage them. While the pliers may leave bite marks, use the front teeth of the pliers to pinch the steel wire and gently lift or push down to disconnect.
4. Keel pincers
The keel clamp is used to install the partition wall in the decoration project. During the construction of the partition wall, the keel clamp is used to fix the sky keel, earth keel and vertical keel, which can replace the traditional process and complete it in one step. Its advantages are energy and material saving, easy operation and smooth working surface. In use, it is also necessary to hold the body of the pliers perpendicular to a stationary surface. The position of the punch cut should be set at a 45° angle between the vertical keel and the bottom surface of the horizontal keel. to achieve a perfect and strong bite of the horizontal keel and vertical keel.
Pliers, also known as a machine vice, are a versatile tool suitable for holding small workpieces. It is a suitable accessory for milling and drilling machines. It is fixed on the machine table and is used to clamp the workpiece for cutting. . When clamping the workpiece, it must be correctly tightened, and the handle can only be tightened by hand, and no other tools should be used to apply force; it is not allowed to perform tapping operations on the body of the movable key and a smooth surface; Active surfaces such as screw rods and nuts should be cleaned and lubricated frequently to prevent rust.