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Machining method for molds

A processing method and mold technology, applied in the field of mold processing, can solve the problems of many mold processing steps, increasing the number of clamping times, and mold misshapen, saving assembly time, solving misshapen problems, and improving assembly speed.

Active Publication Date: 2014-12-17
GUIZHOU ANJI AVIATION PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of investment casting, the mold structure of elbow parts is generally an upper and lower mold structure. The mold processing steps mainly include blanking, milling, planing, scraping, electric spark, boring, assembly, etc. There are still the following problems in the process: there are many processing steps for the upper and lower molds, and sometimes the processor will complete the processing without clarifying the processing criteria, which will eventually lead to wrong molds
It is time-consuming and labor-intensive to process the upper and lower molds of a single block and increase the number of clamping times, resulting in prolonged mold delivery time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A processing method for a mold with a size of 150mm×140mm×60mm, which mainly includes blanking, milling, planing, scraping, electric sparking, boring, and assembly steps. The upper and lower mold blanks are cut on the same piece of raw material, and the size is 150mm×288mm×60mm, with a machining allowance of 8mm between the upper and lower mold blanks, after the upper and lower mold blanks are glued on a flat plate, then milling, planing, scraping, EDM, boring and other processing After the process is completed, use a 6mm straight milling cutter to mill off the machining allowance between the upper and lower molds, and divide the upper and lower molds into two. Using this method saves half of the processing time compared with the previous one. After the assembled mold has been tested for pressure, the mold has no tooth rubbing phenomenon, and the size is completely qualified.

Embodiment 2

[0012] A processing method for a mold with a size of 120mm×100mm×50mm, which mainly includes blanking, milling, planing, scraping, electric sparking, boring, and assembly steps. The upper and lower mold blanks are cut on the same piece of raw material, and the size is 120mm×110mm×60mm, a machining allowance of 10mm is set between the upper and lower mold blanks, after the upper and lower mold blanks are glued on a flat plate, then milling, planing, scraping, EDM, boring and other processing After the process is completed, use an 8mm straight milling cutter to mill off the machining allowance between the upper and lower molds, and divide the upper and lower molds into two. Using this method saves half of the processing time compared with the previous one. After the assembled mold has been tested for pressure, the mold has no tooth rubbing phenomenon, and the size is completely qualified.

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Abstract

The invention discloses a machining method for molds, which mainly comprises the steps of blanking, milling, planing, scraping, electrospark, boring and assembly. An upper mold blank and a lower mold blank are cut based on the same raw material; an 8-10mm machining allowance is left between the upper mold blank and the lower mold blank; after the upper mold blank and the lower mold blank are integrally adhered to a flat plate, the milling, planing, scraping, electrospark, boring and the like are conducted, then the machining allowance between an upper mold and a lower mold is milled off by a 6-8mm straight milling cutter; and the upper mold and the lower mold are divided into two. According to the machining method, the upper mold and the lower mold are machined based on the same reference, line cutting is reduced, polished profiles and binding surfaces of the upper mold and the lower mold are consistent, mold shifting can be effectively avoided, the mold assembly speed is greatly increased, and the assembly time is saved.

Description

technical field [0001] The invention belongs to the technical field of investment casting, and in particular relates to a processing method of a mold. Background technique [0002] At present, the production capacity and development level of the machinery manufacturing industry mark the degree of national economic modernization of a country or region, while the production capacity of the machinery manufacturing industry mainly depends on the advanced degree of machinery manufacturing equipment, and the performance and quality of products depend on The level and rationality of the process level in the manufacturing process, the transformation of the design pattern into a real product is inseparable from the mechanical manufacturing process, fixtures, and molds. In the process of investment casting, the mold structure of elbow parts is generally an upper and lower mold structure. The mold processing steps mainly include blanking, milling, planing, scraping, electric spark, bor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
Inventor 曹振宏
Owner GUIZHOU ANJI AVIATION PRECISION CASTING
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