Two-shaft cradle type numerical control rotary table

Abstract

The invention discloses a two-shaft cradle type numerical control rotary table. The two-shaft cradle type numerical control rotary table comprises a base, wherein a tilting rotary table body and a tilting supporting seat are arranged at the upper end of the base; a rotary table body is arranged in a mounting cavity between the tilting supporting seat and the tilting rotary table body; tilting shaft spindles are arranged at the two ends of the rotary table body respectively; the tilting shaft spindles are rotationally connected to the tilting supporting seat and the tilting rotary table body through a first rotary table bearing; the tilting shaft spindle where the tilting rotary table body is located is connected to a first rotating piece used for driving the tilting shaft spindle to rotate; and the outer end of the tilting shaft spindle at the left side is connected to an adjusting mechanism for adjusting the balance of the tilting shaft spindle. According to the two-shaft cradle type numerical control rotary table provided by the invention, adjustable balancing devices are arranged behind the tilting shaft spindles, so that the unbalanced load of a tilting shaft can be accurately and reliably eliminated under the condition that workpieces of the cradle type numerical control rotary table are diversified, the high-precision indexing of the rotary table is realized, the motor load is reduced, the service life of the rotary table is prolonged, and the reliability of the rotary table is improved.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to a two-axis cradle type numerical control turntable. Background technique [0002] As a high-end CNC machine tool, the five-axis linkage CNC machining center can complete the processing of complex workpieces with various angles of hole surfaces, curved surfaces, and curves. Using a two-axis cradle-type CNC turntable to realize five-axis linkage is the most commonly used solution for five-axis CNC machining centers. The workpiece is installed on the worktable of the CNC turntable, and the rotation of the tiltable axis and the rotary axis is completed under the control of the system. The rotary axis is on the horizontal plane. Due to the variety of workpieces to be processed, the gravitational moment of the tiltable axis is uncertain. As the rotation angle changes, the gravitational moment also changes. The CNC turntable adopts worm and worm wheel to rotate...

AI Technical Summary

Problems solved by technology

The CNC turntable adopts worm and worm wheel to rotate and index. In addition to the load on the tilting axis transmission mechanism, the gravity moment will also have a great impact on the indexing accuracy of the tilting axis due to the elasticity and clearance of the transmission chain. The accuracy achieved in actual work is the same as There is a large gap in detection accuracy

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