Cutter lifting device for reciprocating saw

Abstract

The invention provides a cutter lifting device for a reciprocating saw. According to the cutter lifting device for the reciprocating saw, a prior reciprocating saw is further optimized, processing accuracy is improved and loss in operation is reduced. The cutter lifting device for the reciprocating saw is installed in a shell body and is matched with a gear shifting device and comprises a swing support sleeved outside a reciprocating rod and a cutter lifting plate arranged below the swing support. One end of the swing support is hinged in the shell body through a swing support shaft. The bottom of the other end of the swing support is provided with a pressing plate with a bearing. A cutter lifting inclined block is arranged on the cutter lifting plate and corresponds to the bearing in position. A sliding groove in the reciprocating rod is connected with a crank through a spherical bearing. The crank is connected with the cutter lifting plate through an eccentric plate. According to improvement of a whole structure, detail adjustment of the process of the reciprocating saw can be performed so that processing accuracy and production efficiency are greatly improved. In the process of repair, only the cutter lifting inclined block needs to be replaced so that repairing cost is saved.

Description

technical field [0001] The patent of the present invention relates to a reciprocating saw, in particular to a knife lifting device for a reciprocating saw. Background technique [0002] The reciprocating saw is a common processing tool. By fixing the workpiece to be processed, the saw blade reciprocates in a working state. Reciprocating saws are more efficient than ordinary precision sliding table saws and are safer to operate. For mass production, the efficiency is several times higher than other processing machinery. However, the saw blade needs to be lifted during the recovery process of the saw blade. The simple shift fork that adopts in the prior art and the combined operation mode of lifting knife plate carry out the work of lifting knife. For example, the invention patent "Reciprocating Saw" with the patent number CN200820119066.2 discloses a reciprocating saw, which includes a casing extending in the longitudinal direction, and a motor arranged in the casing is pe...

AI Technical Summary

Problems solved by technology

[0003] More importantly, even if the lifter plate structure is used in the prior art, if the lifter plate is damaged and needs to be replaced, the reciprocating saw needs to be disassembled to replace the entire lifter plate. Such a process operation is very troublesome and is not conducive to rapid maintenance.

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