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Xiajiang hardware mold design introduction training teaching mode leads the industry trend

Xiajiang hardware mold design introduction training teaching mode leads the industry trend

source network release time: 07:01:01

Xiajiang hardware mold design introduction training teaching mode leads the industry trend

industry famous injection molding avoid rats into molding machine adjustment technical experts, 20 years of on-site practical work experience, Come to the site to help customers and students solve various difficult problems in injection molding production, injection molding technician. Mastering the machine adjustment technology can reduce the injection molding defect rate, material consumption and cost. The mold is known as the mother of the automotive industry. In various industries such as aviation high-speed rail, automobile and ship, electronic appliances, office equipment, daily necessities, most of the spare parts are made by mold forming; Every year, Dongguan Chang'an UG mold training institution will have a large number of UG mold designers successfully employed to serve the society; After two to three years of experience, these mold designers have accumulated rich practical experience. Now let's listen to a successful student with some experience to talk about the early ideas of mold design. The mold NC processing workshop run by Yousheng University receives orders. Mold is a highly practical major, which provides students with very ideal production practice and improves employment security. It is deeply welcomed by students! What steps should be taken in mold process design: (1) product data format conversion convert IGS (or STP) and other format documents into part format used by UG (or CATIA) and other software. There are many ways to express products, such as two-dimensional product drawings, three-dimensional digital models and hand-made samples (now most customers provide digital models instead of two-dimensional product drawings). (2) Product stamping process analysis analyzes the manufacturability of the product board and the content of each process. For some common parts, the process scheme can be determined according to experience. If it is difficult to analyze or determine some special or forming feasibility, you can analyze, calculate and discuss the processability and formability of the product through software (such as AutoForm, etc.) (usually several more schemes are needed to compare and select the best scheme). (3) Drawing process digital simulation making use of three-dimensional digital simulation to make the process supplementary surface of the drawing process, and design the process digital simulation of the drawing process. (4) The process digital simulation of each process is made by using three-dimensional software, including the work content of each process. (5) The design unit shall convene relevant personnel for process review. (6) Make DL drawing (project planning drawing) about the design of DL drawing (project planning drawing) and project planning drawing (DL drawing). (7) Process countersignature

the internship workshop of Yousheng mold training school is arranged downstairs, and the machine tool system, cutting tools, collets, measuring tools, etc. are arranged for on-site physical teaching; After graduation, you can work, with years of experience in mold design and a good salary, to buy a house and a car. Deep drawing die: the basic movement of the deep drawing process is that the unloading plate first contacts and presses firmly with the sheet metal, the punch falls to contact with the sheet metal, and continues to fall, entering the concave die, the punch, the concave die and the sheet metal generate relative movement, resulting in the volume forming of the sheet metal, and then the punch and the concave die are separated, and the die slider pushes the workpiece out to complete the deep drawing movement. The movement of the unloading plate and the slider is very critical. In order to ensure the quality of the drawing part, the movement of the unloading plate must be controlled so that it contacts the plate before the punch, and the pressing force must be sufficient, otherwise the drawing part is easy to wrinkle or even crack; Secondly, ensure that the pressure of the die slider is sufficient to ensure the flatness of the bottom surface of the drawing part. The design of drawing compound die is reasonable, which can well control the movement process of structural parts and achieve the purpose of multi process combination. For example, the design of a typical blanking, deep drawing, edge cutting and punching compound die. In addition, the drawing parts of some ornaments and daily necessities need to have the flanging (or flanging) process, and the roller structure is also used in the mold design, so the rolling friction in the flanging process is very small, so it is not easy to scratch the workpiece surface. For those deep drawing structural parts that need to rotate in the motor, the requirements for the height and runout of the cutting edge are quite high. It is necessary to design a special rotary cutting structure in the mold. Using the rotary (cutting) motion to trim the edge can not only ensure the high dimensional accuracy of the cutting edge, but also the burr and punching lines of the cutting edge are quite beautiful. It is worth mentioning that after the actual design improvement, this rotary cutting structure has been very easy to process and manufacture molds, and has been applied to continuous drawing molds. First of all, after we get a product, don't rush to split the mold. The most important thing is to check the product structure, including draft, thickness and other molding problems. Of course, these may be more difficult for a person who is just engaged in mold structure design. Because they may not know how to make products more suitable for mold design. It doesn't matter, it's just a process of their daily accumulation. After you analyze the draft, wall thickness, and the places where there are buckles in the direction of the mold, you basically know the direction of the mold parting surface and the position of the gate. Of course, these should be confirmed with the customer finally. After four months of full-time study, Yousheng mold design students sent a copy of their graduation and a full set of lecture videos to consolidate the learning effect, lifelong technical support, technical guidance, perfect after-sales service, lifelong technical support, domestic well-known mold design and mold flow analysis senior engineer, teacher Shi Yong, who once worked in Dongguan Yada precision mold, Dongguan Rongfeng precision mold and other foreign-funded group companies, The first batch of UG full 3D mold design engineers in the industry, with more than 10 years of design and development experience, proficient in injection mold structure design, UG_ Grip secondary development, UG motion simulation, Moldflow model flow analysis, etc. Mr. Shi is quite experienced, easygoing and well-educated. He guides the upper limit to the maximum load that can be applied to the test piece, and cultivates a large number of mold design elites. Mr. Shi has been constantly studying, always keeping up with the forefront of technological development, and originally developed excellent UG plug-in standard parts plug-in, which has made an important contribution to the promotion and popularization of UG full 3D mold design and promoted the technological progress of the industry. On the eve of new year's Day 2019, the example of Moldflow model flow analysis edited by Shi Yong was published

full time study of mold design for 4 months. After graduation, mold design engineers, project engineers, mold following engineers, mold design draftsmen, mold quotation and purchasing personnel have a good salary, which is an ideal job in the eyes of many people. Some people say, is it possible for me to start designing molds after analyzing the product structure? Of course, the answer is No. If you want to avoid detours in the design, some items that affect the mold structure must be confirmed. The details are as follows:

1 If the tonnage and model type of the injection molding machine used by the customer are not confirmed well, you cannot confirm the inlet diameter of the sprue sleeve and the diameter of the locating ring of your mold, the size and position of the ejector hole, as well as the depth of the injection molding machine into the mold, even the size and closing height of the mold base, etc. You have painstakingly designed a set of mold structure with oil cylinder core pulling, and you also have a sense of achievement, but the mold cannot be produced when it arrives at the customer, because the customer only has an electric injection molding machine, and there is no additional neutron, it is estimated that you will feel like crying without tears at that time. 2. Generally, the coding mode of the customer's injection molding machine is the pressing plate coding mode, screw coding mode, hydraulic coding mode, magnetic coding mode, etc. After this is confirmed, you will know whether you need to design the code mold screw through hole or code mold slot when designing the mold. 3. The problem points of the product after our analysis just now, as well as the product clamp, product material and shrinkage. Don't take it for granted that the plastic shrinkage rate of PP must be 1.5%. This must be confirmed with the customer. We need to know what brand of materials they will eventually use for production, whether there are any modified materials added, etc. Functions of each part of the continuous mold material belt: material belt function: it provides the framework for stamping products to feed in the mold, which is also similar to the manipulator. The material belt needs to take the stamping products to each engineering station of the mold for stamping, so the material belt itself must have a certain strength. B. material belt setting: generally, the width of the material belt is ≥ 3.0mm. 3. Connection bridge between material belt and finished product: the size and mode of the connection area between material belt and finished product should be considered according to the characteristics of stamping products. Under the allowable range, the connection area should be increased as much as possible in general design, so as to increase the connection strength and stability between material belt and finished product. Functions of each part of the continuous die strip: the area outside the finished product linked by the strip is called the scrap area. This part needs to be punched and sheared once or several times, leaving only the finished product area for other stamping processing. Generally speaking, the waste material does not have to be punched and sheared at one time. The strength of the overall material belt needs to be considered in the punching and shearing design. When the material belt structure is weak, some waste materials will be left to connect the finished products to assist in increasing the strength of the material belt. The waste material will be cut off before the stamping is almost completed. a. Primary removal: B. secondary removal: C. reserve waste materials and increase the strength of the strip

Yusheng mold training senior full-time teacher teaches, attends classes on time every day, and after class, the teacher follows the class to coach and check the homework; The learning cases are mainly based on factory practice. After 4 months of practical training, it is best to be familiar with the assembly relationship of products and the use of products when the experience of mold designers in the factory is available. This information is very helpful for the future mold structure design. Because after knowing these, you will know what is the appearance surface, what is the non appearance, where the draft angle can be increased at will, and where it cannot be changed. It even includes the structure of some products. If you know the actual assembly relationship and purpose of the product, you will know which inverted structure can be cancelled or changed into another simple form. We must keep in mind that the process of making molds is the process of simplifying complex problems. I often see some people proud of what a complex structure they have made. I think it's very ignorant. Because many product engineers may design some unreasonable structures due to their own experience. If they can't help them correct them as a downstream process, they may always feel that the design is OK. Then the progress of our product engineers will be very slow. Mold water path external parameters, oil path external parameters, circuit external parameters, gas path external parameters. Only after you understand the customer's requirements before design, can you foresee the design of the water, oil and gas circuits. Don't work hard to design the mold at that time. Later, you find that the customer needs to connect the oil circuits in the mold in series. At that time, if you change it again, it is estimated that you will be half tired, because your water circuits, ejector rods, screws and so on are not easily arranged. The design sequence of these four circuits is generally to ensure the oil circuit first, because the oil circuit should be distributed in a balanced way, especially the mold structure that requires oil cylinder ejection. If the oil circuit is unbalanced, the action of oil cylinder ejection will have a sequence, which is easy to eject out of balance. Of course, gear oil separator can also be used, but that will be more complicated The second is the waterway, because the waterway should ensure the cooling effect, and uneven distribution will affect the product quality and mold life. Shi Yong, the lecturer of mold design, has rich experience, easygoing personality, good teaching and patient guidance. He has cultivated a large number of mold design elites and students all over the world. Every year, he is very talented

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