Vertical numerical control spring grinding machine

Abstract

The invention discloses a vertical numerical control spring grinding machine which comprises a rack, a grinding table, grinding wheel rotating mechanisms and a grinding wheel elevating mechanism, wherein die holes for placing springs are annually arrayed in the grinding table; a grinding wheel is arranged at the top end of each grinding wheel rotating mechanism and is drawn by the grinding wheel elevating mechanism to vertically lift. The vertical numerical control spring grinding machine is characterized in that the number of the grinding wheels used by the device is not less than four and the grinding wheels are different in granularity; a plurality of groups of upper and lower grinding wheels are arranged above and below the die holes which are annularly arranged in the grinding table in pairs; the granularities of the two grinding wheels which vertically correspond to each other in each group are identical but the granularities of the grinding wheels in each group are different from the granularities of the grinding wheels in other groups; from the view of the rotating direction of the grinding table, the granularities of the grinding wheels in one group, which are contacted with the springs firstly, are coarser, the granularities of the grinding wheels in a sequent group are slightly finer and the granularities of the sequent grinding wheels are finer. From the view of the vertical heights of the upper grinding wheels, the positions of the grinding wheels with the coarse granularities are highest, the positions of the grinding wheels with the fine granularities are slightly lower and the positions of the grinding wheels with the finest granularities are lowest. The vertical numerical control spring grinding machine disclosed by the invention has the beneficial effects that multiple paths of thick and thin grindings are combined to one machine for finishing the machining at one time; in addition, the precision and the smoothness can be ensured and high quality and high yield are obtained.

Description

[0001] technical field [0002] The invention relates to the field of spring grinding machinery, in particular to a vertical numerically controlled spring grinding machine, which is suitable for end surface grinding of mechanical parts such as springs and bearing rollers. Background technique [0003] The vertical spring grinding machine is a kind of equipment used to grind the two end faces of the spring at the same time. The equipment generally has a grinding disc for placing multiple springs and two upper and lower grinding wheels. The upper and lower grinding wheels are driven by two motors respectively. Grinding the upper and lower end faces of the spring at the same time. The spring is always ground by the grinding wheel of the same grain size. If it is processed with a coarse-grained grinding wheel, the precision and smoothness will be insufficient. If it is processed with a fine-grained grinding wheel, the processing efficiency will be too slow. Therefore, springs t...

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Problems solved by technology

The spring is always ground by the grinding wheel of the same grain size. If it is processed with a coarse-grained grinding wheel, the pre

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