Toroid worm numerical control machine capable of making up center distance

Abstract

The invention relates to an annular worm digit-control machine which can simulate central distance, wherein it comprises four coupled coordinate motions that the main axle has a rotation A around its axle (parallel to Z); the work bench has the translate motions X, Z which are vertical and in horizontal plane, and the tool bench has the rotation Y around its axle 00 (vertical to the XZ plane); the work bench rotates with the transmission ratio i=A / Y with the main axle, and couples with X, Z, and rotates around the simulated round center (the round center of annular worm) to use the machine with small central distance to process the concave and convex annular worms with large central distance, with low cost and compact structure.

Description

Technical field [0001] The invention relates to a toroidal worm numerical control machine tool, in particular to a toroidal worm numerical control machine tool capable of virtual center distance. Background technique [0002] Worm drive is one of the main mechanical transmissions commonly used in mechanical equipment. It mainly has the characteristics of wide transmission ratio range (usually the first-level transmission ratio can reach 5-100), compact structure, small volume, stable movement, and low noise. In the transmission system, it has the effect of reducing the upstream error, so it is often used in the precision circular indexing mechanism. [0003] Toroidal worm drives such as plane-enveloped toroidal worm drives, cone-enveloped toroidal worm drives, straight-profile toroidal worm drives, etc., are also due to higher load carrying capacity, transmission efficiency, long life, and average indexing error The advantages of small size are more suitable for important occasio...

AI Technical Summary

Problems solved by technology

[0009] 1. The machine tools used to process four types of worms, such as cylindrical worm, conical worm, concave toroidal worm, and convex toroidal worm, are generally not versatile, especially for processing conical worms, concave toroidal worms, and convex toroidal worms. need to be carried out on their respective planes

[0010] 2. The functions of various types of worm processing machine tools are generally relatively single, and turning, milling, and grinding generally need to be performed on different machine tools

[0011] 3. For all toroidal worm processing machine tools, when processing concave toroidal worms, the actual center distance between the rotary axis of the tool table and the axis of the worm must not be less than the worm composed of the processed concave toroidal worm and the matching worm gear The center distance of transmission and the longitudinal and transverse dimensions of the machine tool are large, which not only occupies a large area, but also is heavy and uneconomical; in addition, if the existing gear hobbing machine is used to modify the special machine, although the center distance can be met, the length of the worm cannot be satisfied. Requirements; If the existing lathe is used to refit the special machine, although the length requirement of the worm can be met, the center distance requirement cannot be met. This contradiction has not been resolved for a long time

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