mulberry københavn Figure 3

Mosaic-type tubular radiator Progressive Die

. The principle is to use a floating die between the die and forming punch advantages: high precision, continuous operation, high production efficiency. At the same time with mosaic structure, increase the height difference between the mold to be a strong feeding, eliminating a lot of toppings nail. When the punching die when floating down, making the punch forming a shape above the floating pieces of the die height, forming role to play. When the punching end Cambodia, floating die pick-up, making the floating die punch bounce higher when compared to forming a high degree of forming parts, materials sent to play the role of child care. 3 main parts mold design (1) Die design: the key to the mold die parts, which directly affects the accuracy of the punched part accuracy. Deformation of the mold used, good hardenability, wear the Crl2MoV materials,[link widoczny dla zalogowanych], quenching hardness 60 ~ 64HRC. Cavity with the WEDM process. Working part of the gap (bilateral) is 0.02 ~ 0.04mm. (2) stripper plate design: because the stripper plate in the set forming mandrel body, it used Crl2 material as the stripper plate, quenching hardness emu ~ 62HRC, in order to discharge board has a good guide, stripper plate and cooperation between the punch is H8/h7. (3) side of the blade design: In order to prevent the waste side of the blade cut production picked up, sealing and so on, resulting in product obsolescence or damage to the mold. Will increase the die side of the blade hole 0.5mm, so that waste washed down smoothly. Part of the increase can block light from the live set. (4) from the block and fixed block-oriented design: driven by the side of the strip oriented block-oriented block form in Figure 5. Step away from the use of fixed block, the shape shown in Figure roar materials T8A, quenching hardness of 53 ~ 57HRG shape of the WEDM process. (3) within the mold used mold handle pillar and floating structures, see Figure 2, the main view. Die within the guide post can improve the precision, making steady work, and replace the pin, eliminating the bench to play off hole in the error. Floating-mode handle to avoid poor accuracy due to the mold machine tool guide punching accuracy, but the mold must be consistent on both sides of the spring force,[link widoczny dla zalogowanych], the mold can be steady work. (4) guide blocks and spacer blocks with plug-in guide blocks and blocks away from the place of fixed guide plate, and its simple structure, high positioning accuracy. Guide plate to be omitted from the bench with screws, straight pins work positioning. Once the guide wear, replace the correction very inconvenient. The plug-in guide blocks and spacer blocks grinding, calibration, replacement of all reported easy,[link widoczny dla zalogowanych], just set aside briefly to e194 mold making mold manufacturing process is to ensure that a few key points of the relative position of the cavity plate, the exact shape of , as well as size, illustrates the uniformity of the gap. The processing plan is as follows: the fixed mold 1 to l plate, stripper plate, the floating die, die inserts with four guide pillars of fixed plate positioning line cutting, and grinding of various types of holes by the fitter to ensure cavity position consistency, and then adjusted by the fitter after the final out of the assembly of products qualified technical river in Hubei owned 404 plants (443 209) coffin in grave-r (the bow of a'-__· YSP-1 Introduction of a 15-type actinide LPG bottles, and its protection cover the shape and size shown in Figure 1. The workpiece materials used in the Q235 2.5mm thick steel plate 3 a A stamping process. process is as follows: (1) progressive die punch blanking, process pieces of size Figure 2. (2) roller circle, making the diameter 190ram, 270. .. / Figure 1, Figure 2 does not cover a closed circle. (3) bending mode on the left and the right handle (size R9mm site) bending shape. guard handle bending mode of the original design using the single effect of symmetrical double wedge body,[link widoczny dla zalogowanych], bending slider to rely on spring return. But, after bending the workpiece sometimes irregular, can not meet the quality requirements. the main problem is : Department of injustice catchy piece: diameter of the two handles of tolerance and the corresponding downward depression; handle parts contorted; a higher level of inconsistency or the phenomenon of the Ministry of catchy. 2 Process of the analysis, the main reason for producing such defects are: (1) handle bending part, the weak zone conditions can not guarantee that in the corresponding bending process, to catchy at the Department of depression caused by material shrinkage and deformation of the surrounding area Qianche, and depression caused by excess material is transferred to the handle parts, resulting in catchy handle than the height of the Ministry. (2) bending mode and location under the die gap is too large ring Q (z = material thickness +1 ~ 2mm), resulting in the workpiece in the bending process was a free state, However, if the narrow gap, the roll round pieces placed after the difficult process. To address the above problems, re-design a pair of double-acting four-wedge body guard bending mode (Figure 3), successfully resolved the handle Bending the quality of parts, so as to reach the drawing requirements. 3 die works after the first round of the process roll pieces upside down,[link widoczny dla zalogowanych], to be bending the Ministry of Industry Tools crucible of total N / total song set module structure favorite bending machine with a wedge ramp IV for double

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