Female mold split block assembly of large-scale double punching mold

Abstract

The invention relates to the field of a motor punching sheet double punching mold, in particular to a female mold split block assembly of a large-scale double punching mold. The female mold split block assembly comprises a female mold split block and a fixing device, wherein the fixing device comprises a fixing plate, the female mold split block is fixedly arranged on the fixing plate through a plurality of screws, the fixing device also comprises a hoop, a low-melting-point alloy layer and a plurality of regulating screws, the hoop is arranged on the outer periphery of the female mold split block, the low-melting-point alloy layer is arranged between the female mold split block and the hoop, the hoop is fixedly arranged on the fixing plate through the screws, and the regulating screws pass through the hoop and the low-melting-point alloy layer from outside to inside in the radial direction until the bottoms of the regulating screws are tightly pasted with two ends of the outer side of the single female mold split block. The female mold split block assembly of the large-scale double punching mold has the characteristic that the female mold split block assembly can be respectively processed on a plurality of ordinary machine tools, the time is effectively saved, the work efficiency is improved, the requirement on processing equipment is not high, and the maintenance is convenient through the arrangement of the low-melting-point alloy layer.

Description

technical field [0001] The invention relates to the field of a punching die for electric motors, in particular to a large-scale punching die die block assembly. Background technique [0002] At present, large re-punching die die block assembly (such as figure 1 , 2 shown) includes a die block 1 and a fixing device, the fixing device includes a heat sleeve 2 and a fixing plate 3, the heat sleeve 2 is interference fit on the periphery of the die block 1, and the die The block 1 is fixed on the fixed plate 3 by several screws 4 . The defects of this die block assembly are: 1. The processing cost is relatively high: during processing, if the overall size of the entire die block 1 is large, it must be processed on a machine tool with a large stroke during electric machining (slow wire). It can only be processed, and the cost of the machine tool with a large stroke is relatively high; 2. The processing range is limited: during processing, the shrink fit 2 and the die block ...

AI Technical Summary

Problems solved by technology

The defects of this die block assembly are: 1. The processing cost is relatively high: during processing, if the overall size of the entire die block 1 is large, it must be processed on a machine tool with a large stroke during electric machining (slow wire walking). Two, the processing range is limited: during processing, the thermal sleeve 2 and the die block 1 are interference fit and the stress is relatively large, which determines that the die block can only be assembled. Chengcai can process the entire die block 1. If the overall dimension of the entire die block 1 exceeds the stroke of the machine tool, the entire processing cannot be completed in one clamping, and the accuracy of the die block 1 is not guaranteed; if a single die is forced to be processed first The block 1 is then assembled with the die block assembly, which will cause the deformation of the die block 1, and the accuracy is not guaranteed; 3. The size is difficult to control: due to the incomplete stress release of the shrink sleeve 2, the die block 1 4. The maintenance workload is large: in the specific punching process, when there are single or multiple pieces with problems, the entire die piece assembly must be removed before it can be carried out. repair

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