Rotary workbench

Abstract

The invention discloses a rotary workbench, which comprises a workbench and a base. A rotary mechanism is arranged between the workbench and the base; the rotary mechanism comprises a main shaft and a first oil cylinder of a driving device of the main shaft; the main shaft is provided with an inner ring and an outer ring, wherein the inner ring and the outer ring are connected through a ratchet wheel block driven by an air cylinder, and the outer ring is connected with the first oil cylinder through a connecting rod so as to realize the transposition of the workbench; the rotary mechanism also comprises a positioning shaft and a second oil cylinder of the driving device of the positioning shaft; and after the positioning shaft rotates, a wedge block arranged on the positioning shaft is contacted with two sides of a positioning wheel positioned on the lower surface of the workbench at the same time so as to lock the workbench. The rotary workbench of the invention converts linear motion into rotating and locking motion of the workbench through the drive of the oil cylinder, and has the characteristics of simple structure, reliable performance, convenient assembly and disassembly, low manufacturing cost and the like; and meanwhile, the transposition and the locking of the rotary workbench are stable and shock-free, and the positioning precision is high, so the rotary workbench is favorable for use and popularization and is suitable for all kinds of automatic machining equipment of efficient mass production.

Description

technical field [0001] The invention relates to a rotary worktable used in a rotary multi-station machine tool, in particular to a rotary worktable driven by an oil cylinder which converts linear motion into rotary motion of the worktable. Background technique [0002] The rotary table is installed on a rotary multi-station machine tool and is used to realize the multi-process processing of parts at one time. At present, the rotary table commonly used in the machining industry usually has the following types: First, the motor drives the gear or the worm gear to rotate the table. After the table is in place, the switch sends a signal and the motor stops accurately. The pin or toothed plate positions the workbench; the second is to drive the camshaft to rotate through the motor, and then drive the pins evenly distributed under the workbench to turn the workbench. Positioning; the third is to turn the worktable through the rotary cylinder, and then the switch sends a signal wh...

AI Technical Summary

Problems solved by technology

These existing types of rotary tables generally have defects such as complex structure, small space, and difficult maintenance and adjustment; at the same time, the positioning rigidity of the bolt is poor, the impact is large, the tooth plate positioning is difficult to manufacture, and the price is high, which brings inconvenience to use and affects Its further promotion on a large scale

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