Parallel multi-turntable numerical control clamp

Abstract

The invention discloses a parallel multi-turntable numerical control clamp. The parallel multi-turntable numerical control clamp comprises a clamp body and a rotating mechanism, wherein the clamp body adopts a U-shaped structure; the rotating mechanism which controls turntables to rotate is mounted on one side of the clamp body of the U-shaped structure; a second rotating shaft and a bearing which support the turntables to rotate are mounted on the other side of the clamp body of the U-shaped structure; the rotating structure comprises a servo motor; an output shaft of the servo motor is connected with a worm; the worm is erected on one side of the clamp body through a pair of bearing seats; the other end of the worm is fixed with a pulse encoder; a plurality of first rotating shafts are mounted on the side wall of the side, provided with the worm, of the clamp body; worm wheels matched with the worm are mounted on the first rotating shafts; the other ends of the first rotating shafts are connected with second rotating shafts; the turntables are respectively mounted on each second rotating shaft in parallel. The invention discloses the numerical control clamp that a plurality of parallel turntables are controlled to rotate together through a precise worm wheel-worm transmission mechanism; a plurality of workpieces can be clamped; a plurality of working station surfaces can be machined; the machining efficiency of a numerical control machine tool is improved; the batch production capacity of the numerical control machine tool can be played.

Description

technical field [0001] The invention belongs to the field of fixture design of a numerical control machine tool, and in particular relates to a numerical control fixture with parallel multi-turntables. Background technique [0002] The field of modern mechanical numerical control machining is more and more oriented towards mass customization and batch-scale production. Considering that numerical control machining is characterized by a high degree of process concentration, it is required that the fixture has a certain flexible function and can adapt to multi-process and multi-station processing in a certain field. All kinds of shell workpieces required can be clamped on the CNC machine tool to complete the processing of multiple surfaces as much as possible. If the high-end four-axis and five-axis machining centers can be used to complete the multi-surface processing of the workpiece in one clamping, it is not suitable for In the mass production mode, the use of a cost-effect...

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Problems solved by technology

[0002] The field of modern mechanical numerical control machining is more and more oriented towards mass customization and batch-scale production. Considering that numerical control machining is characterized by a high degree of process concentration, it is required that the fixture has a certain flexible function and can adapt to multi-process and multi-station processing in a certain field. All kinds of shell workpieces required can be clamped on the CNC machine tool to complete the processing of multiple surfaces as much as possible. If the high-end four-axis and five-axis machining centers can be used to complete the multi-surface processing of the workpiece in one clamping, it is not suitable for In the mass production mode, the use of a cost-effective three-axis machining center requires multiple clamping of the workpiece to complete the multi-station surface processing, resulting in many loading and unloading times, troublesome operation, resulting in low processing efficiency, and the cumulative error caused by multiple clamping will affect the workpiece. Processing quality

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