柴油機氣缸體頂?shù)酌娲帚娊M合機床總體及夾具設(shè)計
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目 錄
1 前言………………………………………………………………………………1
2 機床總體設(shè)計…………………………………………………………………3
2.1 被加工零件分析………………………………………………………………3
2.2 機床結(jié)構(gòu)的確定………………………………………………………………3
2.3 本組合機床的特點………………………………………………………………3
2.4 切削用量的確定………………………………………………………………3
2.5 各部件的造型………………………………………………………………4
2.6 繪制“三圖一卡”………………………………………………………………7
3 夾具設(shè)計…………………………………………………………………………………12
3.1 概述……………………………………………………………………………………12
3.2 設(shè)計的前期準(zhǔn)備………………………………………………………………………13
3.3 定位裝置的確定……………………………………………………………………13
3.4 確定夾緊方案……………………………………………………………………16
3.5 其他元件的設(shè)計……………………………………………………………………18
3.6 夾具的公差配合及技術(shù)要求…………………………………………………………18
3.7 工序的精度分析……………………………………………………………………21
4 總結(jié)………………………………………………………………………………………25
5參考文獻…………………………………………………………………………………26
6 致謝……………………………………………………………………………………27
7 附錄………………………………………………………………………………………28
柴油機氣缸體頂?shù)酌娲帚娊M合機床總體及夾具設(shè)計
摘要：本設(shè)計課題為柴油機氣缸體頂?shù)酌娲帚娊M合機床總體及夾具設(shè)計。機床總體設(shè)計主要完成雙面銑組合機床的“三圖一卡”；擬訂夾具的結(jié)構(gòu)方案、繪制夾具總圖及其零件圖。
根據(jù)氣缸體尺寸、形狀、材料、加工部位的結(jié)構(gòu)和加工精度、表面粗糙度等要求，確定選用臥式雙面銑組合機床；為實現(xiàn)工件快進和工進配以移動工作臺；被加工平面為大平面，材料為HT250，故刀具選擇硬質(zhì)合金端銑刀。夾具安裝在移動工作臺之上。在被加工零件的定位方面，本方案采用了“一面兩銷”的定位方式，以達(dá)到較好的定位效果。夾緊是通過手動夾緊，以四個壓板實現(xiàn)夾緊，這樣能很好的防止夾緊力作用下工件產(chǎn)生形變。由于被加工零件體積、重量較大，故采用支承板支承。另外通過夾具誤差設(shè)計分析，能夠較好地保證加工精度。
通過這樣的設(shè)計來達(dá)到加工要求，以便能完成對柴油機氣缸體頂?shù)椎拇帚姡瑵M足工廠制定的產(chǎn)量。
關(guān)鍵詞：組合機床； 夾具； 氣缸體； 銑削
The diesel of the overall modular machine tool and jig for thick mill the surface and bottom of cylinder body of the diesel engine
Abstract: The diesel of the overall modular machine tool and jig are designed for thick mill the surface and bottom of cylinder body of the diesel engine. The system design mainly completes “three charts and a card” about the two-sided mill modular machine-tool. The jig design is to complete the structure plan, the assembly drawing and the parts drawing.
According to the cylinder body size, the shape, the material, processing request and so on spot structure and processing precision, surface roughness, determined selects the horizontal-type two-sided mill aggregate machine-tool; In order to realize the work piece to enter quickly with the labor enters matches by moves the work table; Is processed the plane is the big plane, the material is HT250, therefore cutting tool choice hard alloy face cutter. The jig installs in moves above the work table. In is processed the components the localization aspect, this plan has used "two sells at the same time" the locate mode, by achieves the good localization effect. Clamps is through manual clamps, clamps by four clamps realizations, like this can very good prevent clamps under the action of force the work piece to have the deformation. Because is processed the components volume, the weight is big, therefore uses the support plate supporting. Moreover designs the analysis through the jig error, can guarantee the processing precision well.
I complete the design requirements according to such design, so that I can complete to the diesel engine was mad the cylinder body goes against the bottom the thick mill, satisfy the factory formulation the output.
Key words: modular machine-tool; jig; cylinder body ; milling
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