Pull-down type broaching machine

Abstract

The invention discloses a pull-down type broaching machine. The pull-down type broaching machine comprises a machine body, a first driving mechanism, a second driving mechanism, a first adapter, a first chuck, a second adapter, a second chuck and a workbench. The first driving mechanism comprises a first motor, a first lead screw and a first lead screw nut, wherein the first lead screw is sleevedwith the first lead screw nut. The second driving mechanism comprises a second motor, a second lead screw and a second lead screw nut, wherein the second lead screw is sleeved with the second lead screw nut. The first adapter is fixedly connected to the first lead screw nut and cooperates with a first guiding mechanism. The first chuck is fixedly connected to the first adapter. The second adapteris fixedly connected to the second lead screw nut and cooperates with a second guiding mechanism. The second chuck is fixedly connected to the second adapter. The workbench and the machine body are relatively fixed, and a machining station for fixing a to-be-machined workpiece is arranged on the workbench. The structural arrangement of a traditional hydraulic system is omitted, the problem that ahydraulic oil way leaks in the working process is completely eradicated effectively, a mechanical transmission structure is adopted, the compact structural arrangement is facilitated, and the occupiedspace is saved.

Description

technical field [0001] The invention relates to a vertical broaching machine, in particular to a pull-down broaching machine. Background technique [0002] A broaching machine is a machine tool that uses a broach to process various inner and outer forming surfaces of a workpiece. According to the processing surface, the broaching machine can be divided into inner broaching machine and outer broaching machine. The inner broaching machine is used for broaching the inner surface, such as spline hole, square hole, etc., and the outer broaching machine is used for broaching the outer surface. According to the overall structure and branch form, broaching machines are divided into horizontal and vertical. Among them, horizontal broaching machines are widely used and can process large workpieces, but occupy a large area; vertical broaching machines occupy a small area, but Tool travel is limited. The vertical broaching machine can be divided into pull-up type and pull-down type ac...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a pull-down broaching machine to solve the problems of oil circuit leakage and insufficient compact structure in the existing pull-down broaching machine driven by a hydraulic cylinder

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