Improved structure of gear locating device in gear processing machine

Abstract

The invention belongs to the technical field of machinery and provides an improved structure of a gear locating device in a gear processing machine. The improved structure comprises a working platform capable of rotating and a locating mechanism matched with the working platform, wherein the locating mechanism comprises an upright post, a tailstock, a locating thimble and a power mechanism, the tailstock is arranged on the upright post and can move up and down under the driving action of the power mechanism, the locating thimble is arranged on the tailstock and is opposite to the working platform, and after a gear to be processed is placed on the working platform, the power mechanism drives the tailstock to move so as to enable the locating thimble to locate the gear on the working platform. The improved structure provided by the invention has the advantages that the locating thimble and the working platform are matched to locate the gear, a revolving part bearing to bear a radial load is arranged in the working platform, a tapered roller bearing is arranged to bear an axial load, and the two bearings are combined and arranged to enable a main shaft to jump in a small range, thus enabling rotating speed and torque of the whole working platform to be high, ensuring high-speed rotation of the gear and further improving processing accuracy and efficiency of the gear.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a gear processing machine, in particular to an improved structure of a gear positioning device in the gear processing machine. Background technique [0002] Among mechanical products, gear products account for the majority. Generally, the tool is fixed by the tool driving device in the gear processing machine, the workpiece to be processed is placed on the workbench, the gear is positioned by the positioning device, and the workbench rotates. Then, the tool is reciprocated on the axis of the workpiece to form the required gear shape through the mutual meshing of the rotating tool and the rotating workpiece. Due to structural design problems, the existing positioning device is not only between the worktable and the bearing. The sliding fit is mainly used, which increases the gap and the friction coefficient, and the whole positioning device has problems such as low speed and small ...

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Problems solved by technology

[0002] Among mechanical products, gear products account for the majority. Generally, the tool is fixed by the tool driving device in the gear processing machine, the workpiece to be processed is placed on the workbench, the gear is positioned by the positioning device, and the workbench rotates. Then, the tool is reciprocated on the axis of the workpiece to form the required gear shape through the mutual meshing of the rotating tool and the rotating workpiece. Due to structural design problems, the existing positioning device is not only between the worktable and the bearing. The sliding fit is mainly used, which increases the gap and the friction coefficient, and the whole positioning device has problems such as low speed and small torque during the rotation of the gear, which limits the scope of use of the processing machine, and the mechanical The working stability is poor, which affects the processing quality and working efficiency of the gear

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