Electric spindle structure of work bench

Abstract

The invention provides an electric spindle structure of a work bench. After an electric spindle of the work bench is assembled with a suction cup, different sizes of work-pieces can be held, the generality of the electric spindle of the work bench is good, and the invested cost of equipment is reduced. The electric spindle structure of the work bench comprises a front cover, a spindle rear cover, a shell, a rotating shaft, a motor and a rotary converter, wherein a gas circuit is arranged in a center area of the rotating shaft; the gas circuit is communicated with a vacuum valve at the tail part; the rotating shaft, the motor and the rotary converter are arranged inside a cavity formed by the shell and the spindle rear cover; the front cover is fixedly connected with output end of the rotating shaft; the rotating shaft is fixedly connected with a rotor of the motor, and the rotary converter is sleeved at one end of the rotating shaft. The electric spindle structure of the work bench is characterized in that at least two gas circuits are arranged in the centre area of the rotating shaft; the tail part of each gas circuit is respectively connected with the vacuum valve through a rotary joint, and through holes are respectively formed on the part of the front cover corresponding to each gas circuit.

Description

technical field [0001] The invention relates to the technical field of the spindle structure of a machine tool, in particular to the electric spindle structure of a workbench. Background technique [0002] The existing electric spindle of the workbench cooperates with the suction cup to hold the workpiece. Since the air passages evenly distributed on the suction cup are connected to each other, the electric spindle of the workbench only needs one air pipe to complete the communication with the air passage of the suction cup. To hold workpieces of fixed size, since the worktable electric spindle can only correspond to the suction cup for holding fixed-size workpieces, each workpiece of each size needs to correspond to different worktable electric spindles, which makes the versatility of the worktable electric spindle poor and increases the equipment cost. Input costs. Contents of the invention [0003] In view of the above problems, the present invention provides a wor...

AI Technical Summary

Problems solved by technology

[0002] The existing electric spindle of the workbench cooperates with the suction cup to hold the workpiece. Since the air passages evenly distributed on the suction cup are connected to each other, the electric spindle of the workbench only needs one air pipe to complete the communication with the air passage of the suction cup. To hold workpieces of fixed size, since the worktable electric spindle can only correspond to the suction cup for holding fixed-size workpieces, each workpiece of each size needs to correspond to different worktable electric spindles, which makes the versatility of the worktable electric spindle poor and increases the equipment cost. Input costs

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