共查询到19条相似文献,搜索用时 109 毫秒
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小压盖多工位级进模的原企业排样设计方案为纵向单排,本文提出了倾斜3排的1模3件和1模6件的排样设计方案。研究发现1模6件排样和1模3件排样比较,材料利用率不变,虽然生产效率更高,但其模具结构使其模具外形尺寸庞大,模具成本也较高,在制件生产批量一定时,1模6件排样制件分摊的模具费也更多。通过对材料利用率、模具复杂程度以及生产批量等级方面综合分析,最后采用倾斜3排的1模3件的排样新方案。纵向单排排样设计方案的材料利用率为51.4%,采用新方案的材料利用率为74.5%,生产效率是原来的3倍,生产成本大幅降低。 相似文献
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介绍了A3003-H16特薄板环形撕拉盖的冲压加工,从其工艺性分析、排样设计、模具整体结构、主要工模具选材等方面加以说明。 相似文献
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介绍了A3003-H16特薄板环形撕拉盖的冲压加工,从其工艺性分析、排样设计、模具整体结构,主要工模具选材等方面加以说明。 相似文献
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重点介绍了镇流器冲片双排无废料级进模结构设计方面的特点,分析了模具的排样工艺,解决了模具无废料冲制的关键技术.模具采用双排无废料的排样设计,提高了材料的利用率和产品生产效率.该模具具有高精度、高速度、长寿命的特点,经实际使用证明,此模具结构设计合理,运行安全可靠,并且模具制造加工方便,满足了镇流器冲片大批量生产的需求. 相似文献
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Jae C Choi Byung M Kim Hae Y Cho Chul Kim 《International Journal of Machine Tools and Manufacture》1998,38(8):931-963
This paper describes the development of a computer-aided design of blanking and piercing for irregular-shaped sheet metal products and stator and rotor parts. An approach to the compact and practical CAD system is based on the knowledge-based rules. Knowledge for the CAD system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of six main modules, which are input and shape treatment, production feasibility check, blank layout, strip layout, die layout, and drawing edit module. Based on knowledge-based rules, the system, STRTDES, is designed by considering several factors, such as complexities of blank geometry and punch profile, availability of press equipment and standard parts, utilization ratio which minimizes the scrap in a single or a pairwise operation, bridge width, grain orientation and design requirements which maximize the strength of the part when subsequent bending is involved. Therefore, this system can carry out a die design for each process which is obtained from the results of an automated blank layout drawing with the best utilization ratio for the irregular shape of the product, which was successful in the production feasibility check module, and those of an automated strip layout drawing. It can then generate part drawings and the assembly drawing of the die set in graphic form. The developed system provides its efficiency and effectiveness for blank layout, strip layout, and die layout of irregular-shaped sheet metal products and stator and rotor parts. 相似文献
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针对具有混合冲压工艺特征工件的级进模工步排样进行了研究。提出了一种冲压工艺规则分类表达准则。并开发了基于该表达方案的级进模工步排样算法。与建立在其他商用CAD系统之上的嵌入式级进模工步排样应用系统比较。该设计方案兼有排样结果和适应性较好的优点。 相似文献
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多工位级进模排样设计的合理对模具生产的稳定性、生产效率及降低制件的成本等至关重要,文中介绍采用计算机中的cAD软件对安装板制件排样图设计的步骤进行一一的解说,对设计师在排样设计时具有参考价值。 相似文献
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This paper describes an interactive computer program for die layout design which is part of a complete CAD/CAM package for forging hammer dies. Given hammer weight, blow energy, bar stock size, flash dimensions, finishing and preform die geometries, the program can be used to choose a die block of suitable size and design the disposition of cavities on it. The size of sprues and gates and the dovetail design are also dealt with by the program. The program's output, ideally post-processed for controlling NC die sinking machines, can be used for the manufacture of complete die blocks for hammers. 相似文献
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压铸模CAD技术的研究与应用 总被引:2,自引:1,他引:2
介绍国内外压铸模CAD技术研究的进展和取得的成就,提出加快中国压铸模CAD技术研究与应用的进程的措施有:研究和开发自主的三维压铸模CAD系统;压铸模CAD系统的二次开发;提高软件的智能化、集成化和专业化程度。使开发系统具有良好的通用性和实用性。 相似文献