CNC dual-main-shaft transmission device

Abstract

The invention discloses a CNC dual-main-shaft transmission device which is suitable for being applied to a CNC dual-main-shaft processing machine. The CND dual-main-shaft transmission device comprisesa power unit, a linear rail unit and a slide base unit, wherein the linear rail unit comprises a plurality of linear rails; the slide base unit comprises a first slide base module and a second slidebase module which are arranged on the linear rails in a sliding mode; the first slide base module is provided with a plurality of first left slide blocks and a plurality of first right slide blocks; the second slide base module is provided with a plurality of second right slide blocks and a plurality of second left slide blocks; arranging positions of the first left slide blocks and the second left slide blocks are symmetrical to those of the first right slide blocks and the second right slide blocks; spacing among the first left slide blocks and spacing among the second left slide blocks areseparately the same with spacing among the first right slide blocks and spacing among the second right slide blocks. Positions of stress transmission points are symmetrical, so that integral rigiditycan be reinforced, and deformation torsion degree during stressing is reduced, and therefore, processing precision is improved.

Description

Technical field [0001] The invention relates to a transmission device, in particular to a CNC double-spindle transmission device. Background technique [0002] An existing double-head machine tool, as shown in the Taiwanese Patent No. M562176, is to provide two sliding seats for the two spindles respectively, and the sliding seats can each drive the two spindles. The workpiece is processed to achieve a double-efficiency processing action. In order to reduce the volume, the sliding blocks of the two sliding seats are designed to be arranged alternately, so that the sliding seats can be arranged on three linear rails. [0003] Furthermore, an existing CNC dual-spindle transmission device applied to a CNC dual-spindle processing machine is shown in the Taiwanese Patent No. I586463. In order to further reduce the volume, it is installed on two linear rails 11 The sliders 121 of the two sliding seats 12 are designed to be staggered with each other and have different spacings, so that t...

AI Technical Summary

Problems solved by technology

[0004] However, in the above two existing technologies, since the position of the slider and the shape of the slider are asymmetrical, the overall rigidity of the CNC double-spindle transmission device is not good, which affects the deformation when the force is applied. degree of distortion, resulting in a decrease in processing accuracy, and in the face of different application requirements, the distance between the sliders needs to be redesigned and adjusted, for example, when figure 1 When the slider 121 located on the inner side needs to increase the distance, not only need to consider whether the upper slider will exceed the height limit, resulting in too large volume, but also need to consider that the shapes of the corresponding sliders need to cooperate with each other, so the mechanism design will encounter greater difficulties and complexities

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