Novel punch crankshaft structure

Abstract

The invention discloses a novel punch crankshaft structure which comprises a crankshaft (1), a driving gear (2) and a pinion (3), wherein the driving gear (2) and the pinion (3) are sequentially installed on the crankshaft (1), and the pinion (3) is positioned at the rear part of the driving gear (2). The structure is characterized in that the crankshaft (1) at the rear part of the pinion (3) is also provided with a groove (7); and the groove (7) is internally provided with a clamp spring. Through arranging the groove at the circumferential position at the outer end of the connecting part of the crankshaft and the pinion, the pinion is fixed by the mode of arranging the clamp spring in the groove, thus the pinion is very convenient to install, fix, dismantle and maintain, the structure is simple and feasible, and also is time-saving and labor-saving, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a crankshaft structure, in particular to a crank structure used for driving in a punch press, and belongs to the technical field of mold manufacturing. Background technique [0002] figure 1 It is a schematic diagram of a traditional crankshaft structure. [0003] Such as figure 1 Shown: We know that the punch press uses the crankshaft as the active part to convert the rotary motion of the crankshaft into the reciprocating linear motion of the slider. The connecting rod neck of the crankshaft is connected with the big head hole of the connecting rod, and the small head hole of the connecting rod is connected The slider is connected, the upper mold is installed on the slider, the lower mold is fixed on the backing plate, the slider drives the upper mold to move relative to the lower mold, and the material placed between the upper and lower molds is stamped. Therefore, the crankshaft structure is in The application of the punc...

AI Technical Summary

Problems solved by technology

[0004] We know that the drive gear 2 and the pinion 3 connected to the feeding device are also housed on the crankshaft 1. The traditional way of fixing the drive gear 2 and the pinion 3 is: at first the keyway 6 is set on the crankshaft 1, and on the crankshaft 1 Corresponding keys are set on the drive gear 2 and pinion 3, and the positioning installation is carried out first, and then the connecting part of the crankshaft 1 and the drive gear 2 and pinion 3 is made into a stepped shape, and then installed on the crankshaft 1 with bolts 5 The baffle 4 is used to fix the driving gear 2 and the pinion 3. In this way, the installation, disassembly and maintenance of the pinion 3 are very troublesome, time-consuming and laborious, and affect work efficiency.

Images