Side trimming die
A side trimming and mold technology, which is applied in the field of auto parts processing, can solve the problems of increased punch clearance and reduced precision of scrap removal, and achieves the effect of improving precision and efficiency
Pending Publication Date: 2018-04-27
重庆安亚模具制造有限公司
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Problems solved by technology
[0003] Aiming at the deficiencies existing in the prior art, the present invention provides a side trimming die, which solves the problem that the gap increases during the movement of the punch and the accuracy decreases when cutting waste
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with the accompanying drawings.
[0013] like Figure 1 ~ Figure 3 As shown, a side trimming mold according to the present invention includes a slidingly fitted lower mold base 1 and an upper mold base 2, and the middle part of the upper mold base 2 is provided with a limiting groove 21 and a "ten"-shaped installation groove 22. A nitrogen spring 3 is fixedly connected to the middle part of the limit groove 21, and a presser 4 is slid in the limit groove 21. The piston rod of the nitrogen spring 3 is fixedly connected to the presser 4, and the nitrogen spring 3 Controlling the movement of the presser 4 has the advantages of small size, long form and high pressure. Since the lateral force will be generated in the lateral direction to impact the entire part when trimming the side, and the presser 4 is used as the pressing force of the part. Tight parts will be impacted indirectly, and when the nitrogen ...
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The invention provides a side trimming die. The side trimming die comprises a lower die holder and an upper die holder, wherein the lower die holder is in sliding fit with the upper die holder, a limiting groove and a cross-shaped installation groove are formed in the middle of the upper die holder, a nitrogen spring is fixedly connected to the middle of the limiting groove, an eccentric swage isarranged in the limiting groove in a sliding mode, a piston rod of the nitrogen spring is fixedly connected with the eccentric swage, and four punching mechanisms which are opposite in pairs are installed in the installation groove; a positioning core is fixedly connected to the middle of the lower die holder, and grooves which are matched with the punching mechanisms are formed in the positioningcore; and stops of which the surfaces are inclined to one side of the positioning core are arranged on the lower die holder, stop blocks are arranged on one end, which is close to the positioning core, of the stops, and the stops are in sliding fit with the punching mechanisms. Waste on four surfaces is cut off at the same time by the four punching mechanisms in one-time processing, side lines ofparts are protected, and subsequent finish machining or direct use can be performed after machining, so that the side trimming and punching efficiency is improved, and the consistency of the punchingsymmetry precision and the punching size is guaranteed.
Description
technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a side trimming mold. Background technique [0002] Most of the auto parts are sheet metal parts. After the sheet metal parts are demoulded, the blanks cannot be used directly. It is necessary to cut the waste beyond the size, so that the sheet metal parts can meet the size required for installation. When cutting the waste The opening that needs to form a curved structure can be directly formed in one processing, avoiding the complexity of secondary processing. When performing side trimming, if the side trimming mechanism on the upper die is used only for processing, a lateral force will be generated after the upper die contacts the lower die, which will affect the accuracy of the punch for scrap removal and easily cause the punch to move. The gap increases during blanking, and the waste cannot be reliably removed. Contents of the invention [0003] Aiming at th...
Claims
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IPC IPC(8): B21D37/10B21D35/00
CPCB21D35/003B21D37/10
Inventor 伍亚林
Owner 重庆安亚模具制造有限公司