principle of operation
1. Realization of reciprocating motion of saw blade: The most common crank-connecting rod mechanism is adopted for transmission, which converts the rotation of crank into linear reciprocating motion of reciprocating rod. A bearing and a big gear form a crank, one end of a connecting rod is connected with a reciprocating rod through a universal joint, and the other end of the connecting rod is connected with the crank; The motor drives the big gear to rotate, and the reciprocating rod is driven to reciprocate back and forth through the connecting rod. In order to balance the action, a counterweight is installed, which is driven by an eccentric wheel and reciprocates with the reciprocating rod.
Second, the realization of saw blade swing movement: through a seesaw mechanism? Realize. A return spring is installed on the tool carrier, and one end of the return spring is connected with the? Then the movable block, the reciprocating rod passes through the movable block, and the other end is buckled with the knife lifting hook. When reciprocating, the tool lifting hook moves back and forth at the same time, and the tool lifting bracket is hooked by the hook to move together, thus driving the movable block and the reciprocating rod to swing up and down. There are different end faces on the arbor, and different swing amplitudes can be obtained by adjusting the end faces of arbor.
Third, the saw blade clamping mechanism: clamp the saw blade through the pressure plate and the fixing screw and fix it in? At the head of the reciprocating rod. There is a locating pin on the end face of the reciprocating rod, which is used to hook the saw blade and prevent it from coming off. There are two kinds of saw blade chuck devices: ordinary type and fast type. The universal quick clamping mechanism has been patented by some well-known brand companies? Protection, if you want to use it, you must consider the patent issue.
Influence of stroke length on machine cutting: the stroke length refers to the front and back of the saw blade during cutting. Maximum moving distance. The stroke length has a great influence on the cutting efficiency of the machine. If the same saw blade is used to cut materials at the same reciprocating times, the cutting efficiency is different with different stroke lengths: the longer the stroke length, the more teeth the saw blade participates in each reciprocating cutting process and the faster the cutting speed; The shorter the stroke, the fewer teeth involved in cutting and the slower the cutting speed.
Saw blade: The influence of saw blade on the cutting performance of the machine is very important. The shape, sharpness and wear resistance of saw teeth are one of the decisive factors of machine cutting performance. Commonly used saw blade materials generally include high carbon steel and high-speed tool steel. For different cutting objects, the hardness requirements of sawtooth are different.
Bian Xiao introduced the working principle of electric reciprocating saw above. Generally speaking, electric reciprocating saw can become electric reciprocating saw because his working process is a reciprocating process, that is to say, we can see that electric reciprocating saw's saw blade is actually doing circular motion. Electric reciprocating saw's circular motion can save us more energy and achieve better results. I hope that through Bian Xiao's introduction, you can understand why electric reciprocating saw is called electric reciprocating saw and how electric reciprocating saw works.
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