Rotating platform with brake locking mechanism

Abstract

The present invention provides a rotating platform with a brake locking mechanism. The rotating platform comprises a rotating shaft and a brake locking mechanism in a body. The brake locking mechanism comprises an air cylinder, a piston rod, a driven member and a plurality of rolling members, wherein a high-pressure air source enters into a chamber of the air cylinder via the body, the piston rod is driven to drive the driven member to perform straight reciprocating motion, the rolling members are driven to slide aside because of the oblique cone shape of the driven member which is wider in the bottom than the top, and a plurality of claw portions on the top end of the air cylinder are made to expand externally to press against inner walls of the shaft holes in the center of the rotating shaft, thereby enabling the rotating shaft to have the brake locking effect. According to the rotating platform with a brake locking mechanism, only the high-pressure air source is used as a driving source, an adequate brake torque can still be obtained after the amplification of the air pressure thrust through the oblique faces, and the effects of brake locking by the rotating shaft can thus be obtained. Moreover, high-pressure air is used as the driving source and oil pressure equipment with complicated parts is not need to be configured, so the equipment is low in costs and has the advantages of miniaturization.

Description

Technical field [0001] The present invention relates to a rotary table of a machine tool, in particular to a rotary table with a brake locking mechanism. Background technique [0002] Currently, four-axis or five-axis multi-axis machine tools are common on the market. The rotation of the rotary table is mostly driven by a direct-drive motor or driven by a worm and a worm gear. However, due to the consideration of processing efficiency during processing, When planning the path, we will try to focus on fixed-axis machining. At this time, the two rotating axes will be locked with brakes to increase the machining stability. [0003] As shown in Figure 8, it is a braking locking mechanism of an existing rotary table. A rotating shaft 91 is provided at the center of a body 90, and a worm 92 is used to drive a worm gear 93 to drive the rotating shaft 91 to rotate. The rotating shaft 91 is provided with a rotating shaft in the main body 90. The disc 94 rotates with the rotating sha...

AI Technical Summary

Problems solved by technology

[0004] However, if the clamp 95 is used to tighten the disc 94, a strong force is required to exert the locking effect. Therefore, the clamp 95 mostly uses hydraulic equipment as the driving source, and the hydraulic equipment has many and complicated parts, so The equipment cost remains high, and the hydraulic equipment takes up a lot of space, so it is not easy to miniaturize

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