Grinding machine spindle end mechanism

Abstract

The invention relates to a main shaft end apparatus of a grinding machine, which belongs to the technical field of a machining device. The apparatus comprises a taper body arranged at a main shaft end, a taper sleeve which is used for arranging a grinding wheel and provided with a taper hole in the middle and a screw tooth on the external circumference, and a compression nut. The main shaft end apparatus of the grinding machine is characterized in that the apparatus also comprises a holding disc and a screw; a screw hole is arranged in the middle of the holding disc; a pair of sleeve keys is arranged on the inner end face of the holding disc; a pair of shaft keys is arranged on the outer end face of the holding disc; correspondingly, sleeve key grooves used for the sleeve keys to be inserted are arranged on the outer end face at one side of the holding disc facing to the taper sleeve, and shaft key grooves used for the shaft keys to be inserted are arranged on the outer end face at one side of the holding disc facing to the taper body; after passing through the screw hole in the middle of the holding disc, and the screw is rotationally fixed with the screw hole arranged at the center of the taper hole. The main shaft end apparatus of the grinding machine has the advantages that the grinding wheel on the taper sleeve is ensured to be always in a compressed state, the splashing of abrasive particle is reduced through changing the rotation direction of the main shaft when complex workpieces are processed, thereby improving the working condition.

Description

technical field [0001] The invention relates to a grinder spindle end mechanism, which is an improvement on the existing grinder spindle end mechanism, and belongs to the technical field of machining devices. Background technique [0002] Grinding machine main shaft head mechanism in the prior art, its structure is by figure 1 It is disclosed that it includes a cone 11 located at the end of the main shaft 1, a tapered sleeve 2 with a tapered hole 21 in the middle and a thread 22 on the outer circumference for installing the grinding wheel 5, a compression nut 3, and a lock Tightening nut 4, the said compression nut 3 is screwed with the thread 22 on the outer circumference of the taper sleeve 2 to fix the grinding wheel 5 on the taper sleeve 2, and the taper sleeve 2 is sleeved through the taper hole 21 in the middle On the cone 11 at the end of the main shaft 1, the cone 11 is provided with a threaded section 111 in the middle of the front end, and a lock nut 4 is screwed ...

AI Technical Summary

Problems solved by technology

The problem existing in the actual use of the above-mentioned grinding machine spindle head mechanism is: the locking of the taper sleeve 2 and the cone 11 is only achieved by the screwing of the lock nut 4 and the threaded section 111, and the locking is not reliable, and there is a potential safety hazard; secondly , the rotation of the lock nut 4 and the threaded section 111 is divided into left-handed and right-handed. In order to prevent the loosening between the two and the loosening of the grinding wheel 5, the rotation direction of the main shaft 1 must be kept in line with the The screwing directions of the lock nut 4 and the threaded section 111 are consistent. Therefore, the main shaft 1 of the main shaft end mechanism of this structure can only rotate in one direction. However, in modern CNC grinding machines, due to the complexity of the workpiece shape, During the machining process, with the continuous change of the cutting point, the abrasive particles splash in different directions, which seriously pollutes the environment. In order to improve the adverse phenomenon of abrasive particle splashing, which affects the environment, it is necessary for the spindle 1 to follow the cutting point during the working process. Adaptive forward or reverse rotation, but the above structure can only rotate in one direction in order to ensure that the grinding wheel 5 does not loosen, unless it is realized by replacing the main shaft with a different rotation direction, but the operation is cumbersome and the work efficiency is very low.

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