Electric tool head shell automatic transposition 90° lathe turning fixture

Abstract

The invention discloses a lathe turning fixture capable of changing positions automatically by 90 degrees and suitable for an electric tool head shell. The lathe turning fixture comprises a lathe spindle (3), a support flange (6), a rotary fixture body (12) and a linear drive mechanism. The support flange (6) is fixed to a fixture support (9). The rotary fixture body (12) is arranged on the fixture support (9). The linear drive mechanism drives the rotary fixture body (12) to rotate by 90 degrees. The linear drive mechanism comprises a rotary air cylinder assembly (1), an air cylinder pull rod (4), a connecting plate (5) and a rack sliding block (7). The rotary air cylinder assembly (1) is installed on the tail portion of the lathe spindle (3). One end of the air cylinder pull rod (4) is connected with the rotary air cylinder assembly (1). The other end of the air cylinder pull rod (4) is fixed to the connecting plate (5). The rack sliding block (7) is arranged on the symmetrical fixture support (9) and is fixed to the connecting plate (5). The fixture support (9) is meshed with the rack sliding block (7) through a gear (11). By the adoption of the structure, the lathe turning fixture capable of changing positions automatically by 90 degrees and suitable for the electric tool head shell has the advantages of being reasonable in structure, convenient to operate and use, high in machining speed and production accuracy, good in product quality, capable of achieving automation and the like.

Description

technical field [0001] The invention relates to a lathe turning jig, in particular to an automatic transposition 90° lathe turning jig capable of processing two right-angled surfaces of an electric tool head shell with one clamping. Background technique [0002] The reduction box of electric tools such as angle grinder, polishing machine, etc. is also called the head shell, one end of which is fixedly connected with the casing, and the other end is fixed with the end cover. The fixed end surface of the casing and the fixed end surface of the end cover are perpendicular to each other. The output shaft drives the output shaft to rotate through the primary or secondary reduction gear. At present, when two mutually perpendicular end faces are processed, due to the unique shape of the head shell, it is necessary to process them with different fixtures on two lathes. The following problems exist in the processing process: first, the processing speed of the head shell is slow, the...

AI Technical Summary

Problems solved by technology

The following problems exist in the processing process: first, the processing speed of the head shell is slow, the work efficiency is low, and the production cost is high; second, because it is completed on two lathes, the accuracy of the two right-angled end faces is difficult to guarantee, which directly affects the transmission efficiency of the reduction mechanism. The gear transmission deceleration mechanism wears fast; the third is that the production workers have high technical requirements, and it is impossible to realize the automation of processing and improve the production efficiency.

For this reason, many manufacturers and scientific research institutions have carried out development and research, but so far there is no relatively ideal product to come out.

Images