Ratchet wheel and pawl locking numerical control indexing table

Abstract

The invention provides a ratchet wheel and pawl locking numerical control indexing table which comprises a worm and gear assembly, a ratchet wheel and pawl assembly and an indexing table assembly. Theworm and gear assembly comprises an indexing worm wheel, an indexing worm, a planetary reducer and a servo motor. A cylinder hole is formed in the center of the indexing worm wheel, and the center cylinder hole of the indexing worm wheel is fixedly connected with the middle portion of an indexing shaft. The ratchet wheel and pawl assembly comprises a locking pawl, a locking ratchet wheel, a screwrod, a stop ring, a nut, a locking handle, a pin shaft, a U-shaped fork frame and a self-lubricating shaft sleeve. The self-lubricating shaft sleeve is of an I-shaped rotation body structure, and thenut is of a T-shaped rotation body structure. The stop ring is a disc with a center cylinder through hole. The U-shaped fork frame is composed of a bottom plate and a vertical plate, a cylinder through hole is formed in the vertical plate of the U-shaped fork frame, a cylinder through hole is formed in the middle portion of the locking ratchet wheel, the cylinder through hole of the locking ratchet wheel is fixedly connected with the indexing shaft, and the locking ratchet wheel is engaged with the locking pawl. By means of the ratchet wheel and pawl locking numerical control indexing table,self locking is achieved through the machine, locking is safer and more reliable, and the machining precision is easily ensured.

Description

technical field [0001] The invention relates to the field of CNC machine tool component manufacturing, in particular to a CNC indexing table for ratchet and pawl locking. Background technique [0002] CNC indexing table is one of the important tooling of many machinery manufacturing plants, and also one of the main components of some machine tools. The CNC indexing table must be locked after each indexing. If the locking is unreliable, machining errors will occur and even waste products will appear. [0003] In the past, the locking of CNC indexing table mostly adopts manual friction locking method. The disadvantage is that the locking force largely depends on the operator's arm strength, so after the CNC indexing table is locked, due to the cutting force The phenomenon of processing errors caused by micro transmission still occurs from time to time. Contents of the invention [0004] Aiming at the problems existing in the traditional centering performance test, the pres...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the traditional centering performance test, the present invention provides a digitally controlled indexing table with ratchet and pawl locking, mainly for the purpose of simplifying the operation process, improving the loading accuracy, improving the detection accuracy, reducing the labor intensity of workers, and obtaining a better fit. actual experimental data

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