夾型滾動(dòng)軸彎曲模具設(shè)計(jì)(已修改)
2025-07-11 22:44 本頁(yè)面
【正文】 摘 要本論文中設(shè)計(jì)的模具是單工序彎曲模。屬于沖壓工藝的一種，但比起沖壓模，本套模具突出了彎曲模的特點(diǎn)，而且包括沖壓模，文中考慮到工件批量大的特點(diǎn)，選用了經(jīng)過(guò)改進(jìn)的一種高效率模具，它是能一次成形的回轉(zhuǎn)式壓彎模。是組合式的活動(dòng)凹模，用于彎曲夾角小于90176。的U形件，可以一次彎曲成形。此模具具有一對(duì)有缺口的轉(zhuǎn)軸凹模，其缺口與工件外形相適應(yīng)。凹模是轉(zhuǎn)軸式的，左右兩件對(duì)稱(chēng)。這種形狀的凹模制成組合式的，且鑲在凹模鑲塊中，便于機(jī)械加工。另外鑲塊部分容易磨損，這樣利于更換又節(jié)省材料。再根據(jù)所選材料和厚度及性質(zhì)經(jīng)過(guò)計(jì)算分析完成該模具的毛坯、彎曲力、回彈值、凸、凹模間隙等的設(shè)計(jì)計(jì)算；選出適合該模具的定位方式、卸料出件方式；設(shè)計(jì)模具的工作部分即凸、凹模的設(shè)計(jì)，選擇模具的材料并確定每個(gè)零部件的加工方案；再根據(jù)模具的裝配原則，完成模具的裝配。裝配調(diào)整好的模具，需要安裝到機(jī)器上進(jìn)行試模。如發(fā)現(xiàn)不符合要求的需加以修正，并進(jìn)行再次試模，直到能正常運(yùn)行并加工出合格的制品。關(guān)鍵詞：彎曲工藝，彎曲成形，回轉(zhuǎn)凹模 Abstract The design of the mold in this paper is the bending modulus of a single process. Belong to a stamping process, but pared to the stamping die sets of molds highlights the characteristics of the bending die and stamping mold, in this paper, we consider the workpiece volume, the choice of a highefficiency improved mold, it is can forming a rotary bending mode. The bined activities of the die for the Ushaped bend angle less than 90 176。, time bending and forming. This mold has a pair of shaft the die gap to adapt its gap with the workpiece shape. The die is the shaft, about two symmetric. The shape of the concave mold made ??modular, and insert in the die insert, ease of machining. In addition, the insert part is easy to wear, so conducive to change and save material．The decline of the punch with the press the slider, the first blank within the die bent into a Ushaped piece of 90 176。, pressure to turn the die when the punch continued to decline, the bottom of the blank, rotating the die force rotation the blanks and further bending and forming. Drive rotating the die when the rebound of the punch with the press the slider, the reverse rotation limit nail and the axis of the spring so that the rotation of the die reset. Bending the die due to this structure can be pleted in the press a tour of several pairs of simple mold to plete the bending process, the mold structure is not plicated, so more in production. Then calculated according to the selected material and the thickness and nature of the analysis of the rough, bending force, springback value, convex, concave mold gap of the mold。 elected for the positioning of the mold, and unloading the pieces of the way。 mold design part of the convex design of the die, the choice of mold material and to determine the processing of each ponent program。 plete the mold assembly according to the mold assembly principles. Assembly adjusted the
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