Detecting device for multi-workpiece broaching production line

Abstract

The invention relates to a detecting device for a multi-workpiece broaching production line. The detecting device comprises at least two detecting mechanisms arranged in an advancing direction of a mobile worktable at intervals; the detecting mechanisms are used for identifying clamping states of workpieces, and are in signal communication with a control system of a machine tool; detecting units are formed between any two adjacent detecting mechanisms; an overall area of the mobile worktable is correspondingly divided into multiple detecting sections by the detecting units; detecting gaps areformed between the workpieces at the front ends in the detecting sections of the mobile worktable and the workpieces at the tail ends; a reserved gap is formed in the advancing direction of the mobileworktable between the detecting mechanism at the most front end and a machining position of a machining unit; and the reserved gap is larger than and equal to the detecting gaps. The detecting deviceadopts a segmented detecting mode to quickly detect the workpieces, prevents the cutter damage of a broaching machine tool, and effectively improves the production efficiency.

Description

technical field [0001] The invention relates to the technical field of broaching, in particular to a detection device for a multi-workpiece broaching production line. Background technique [0002] For example, the Chinese utility model patent whose application number is CN201420214478.X (authorized announcement number is CN203830830U) discloses a mechanical horizontal broaching machine, which is broaching in a way that the broach is fixed and the workpiece moves. The fixture for clamping the workpiece is fixed on the main slide plate and can move along the linear guide rail driven by the ball screw pair, while the broach is fixed on the machine tool body and is located above the clamped workpiece and / or Or at least one of the left and right sides. This horizontal broaching machine can clamp multiple workpieces at the same time, and can solve the precision broaching of multiple surfaces after one clamping. The processing method is simple and the operation is convenient. The ...

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Problems solved by technology

[0003] However, this kind of mechanical horizontal broaching machine that can broach multiple workpieces at the same time has certain problems in actual use. Problems such as failure to press in place cause damage to the broach or cause the workpiece to become a waste product. The workpiece needs to be inspected before broaching. The original inspection method is to set a profiling inspection at the entrance of the knife box. Among them, the main slide plate drives multiple The workpieces pass through the detection mechanism in turn, and then enter the processing area to complete the broaching after passing the detection. If the workpiece is detected to be abnormal, the broaching will be stopped, the clamp will be released to take out the workpiece, and the clamp will be returned. The problems with this detection method are: When the workpiece at the rear end of the main slide or the last workpiece is abnormal, and the workpiece at the front of the main slide has entered the broaching area, it is necessary to manually withdraw the tool to return the entire fixture, otherwise it may cause damage to the tool. damage, what’s more, it needs to be re-disassembled and re-adjusted to make the production process very cumbersome, and the production efficiency is not high; After all the workpieces on the fixture are detected, they enter the broaching station for broaching. This method will greatly increase the floor area of ​​the entire equipment production line, and the detection time of the workpiece is too long, which will also make the broaching efficiency of the workpiece lower. Low

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