Reversible swivel table device

Abstract

The invention relates to a reversible rotary table device. The invention mainly solves the problem that the existing conventional rotary table matched with the heavy machine tool does not have turning motion and has low positioning accuracy. It is characterized in that: the rotary feed box (1) and the rotary positioning body (4) are respectively placed on both sides of the pedestal (6), and the top of the pedestal (6) is equipped with three rotary clamping mechanisms (2) in a triangular distribution, sliding There is an overturning device (3) above the seat (7), and a linear clamping mechanism (9) is respectively arranged on both sides of the bed (10). The reversible rotary table device not only has two functions of linear motion and rotary motion, but also has a flip motion function, and has the characteristics of high rotary positioning accuracy, light weight of the feed box, and small flip angle error.

Description

Technical field: [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a heavy-duty reversible rotary table device. Background technique: [0002] The application of the rotary table has the advantages of high production efficiency, high degree of automation, labor saving, and small footprint. It is widely used in machine tools and production lines of industrial enterprises, especially the wind fins of wind turbines. This workpiece not only has multi-directional The finishing surface and the finishing inner hole, and there is an inclined finishing surface in the inner hole, while the existing heavy-duty floor milling and boring machine and the conventional rotary table matched with the machining center only have linear motion and rotary motion, and do not have Flip motion function, and the positioning accuracy of each motion is low, it is difficult to process such workpieces. At the same time, in order to ensure that t...

AI Technical Summary

Problems solved by technology

[0002] The application of the rotary table has the advantages of high production efficiency, high degree of automation, labor saving, and small footprint. It is widely used in machine tools and production lines of industrial enterprises, especially the wind fins of wind turbines. This workpiece not only has multi-directional The finishing surface and the finishing inner hole, and there is an inclined finishing surface in the inner hole, while the existing heavy-duty floor milling and boring machine and the conventional rotary table matched with the machining center only have linear motion and rotary motion, and do not have Flip movement function, and the positioning accuracy of each movement is low, it is difficult to process such workpieces

At the same time, in order to ensure that the machining center has a high linear and rotary positioning accuracy, it is necessary to have an anti-backlash mechanism to eliminate the positive and negative backlash of the transmission chain. At present, a mechanical anti-backlash structure has been used, using anti-backlash gears, automatic pre-tightening mechanisms, etc. Eliminate the gap. Although these methods can eliminate the static error of the transmission gap, there are disadvantages that the gap elimination is not follow-up and the mechanism is complicated and huge. The rotary positioning accuracy can only reach plus or minus 10 seconds, which directly affects the processing quality and processing efficiency of the machining center.

However, due to structural reasons, the current clamping device has the disadvantages of small clamping force, low reliability, and high oil pressure in the system, which directly affects the processing quality and processing efficiency of the machining center.

At the same time, the existing overturning mechanism uses worm gear or gear transmission to drive the workbench to overturn. This structure requires high manufacturing precision in the machining process and is difficult to process. Although the basic overturning angle function is realized, the overturning error Large, it can only meet the tolerance of the flip angle of the flip body plus or minus 1 point, which affects the quality of the product

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