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Inbound CNC die-casting lathes drive industrial technology innovation

April 16, 2023

The enterprise that produces CNC forging machine tools produces CNC forging machine tools. During the “Ninth Five-Year Plan” period, the company has developed CNC forging machine tools and promoted the technological advancement of the industry. The common feature of these enterprises is that they have a strong technical team, which is earlier. Developed CNC forging machines of different types, and the steps of technology introduction and cooperative production are solid. After the hard work of the “Ninth Five-Year Plan”, these enterprises stood out in the forging machinery industry and formed the first square of production of CNC forging machine tools. The first phalanx consists of three major forces, one is a research institute directly under the former Ministry of Machinery Industry, the other is a state-owned backbone enterprise of the former Ministry of Machinery Industry, and the third is a private enterprise as a rising star.

China Machine Tool Industry Association Forging Plant, Hubei Sanhuan Forging Machine Co., Ltd., Jinan Jiemai CNC Machinery Co., Ltd., Jiangsu Yangli Group Co., Ltd., Jiangsu Yawei Machine Tool Co., Ltd., etc., are the main body of CNC forging machine tools in China. The output and output value can account for more than 70% of the total number of CNC forging machine tools in China. In addition, Yangzhou Forging Machine Co., Ltd., Hefei Forging Machine Co., Ltd., Jinan Jiemai Forging Machinery Engineering Co., Ltd., Jiangsu Xuzhou Forging Machine Tool Factory, Shanghai No. 2 Forging Machine Tool Factory, Tianshui Forging Machine Co., Ltd. and other enterprises produce CNC forging machine tools and The number is also increasing year by year.

The status quo and level of domestic CNC forging machine tools The body panels and body structural parts of large-scale automatic press line cars are the main body of sheet metal stamping parts. The main equipment for producing these stamping parts is the large stamping production line. Large-scale stamping production lines come in many forms, usually with a double-acting press and several single-action presses as the main unit, combined with a sheet conveying system and a control system.

Domestically produced large-scale stamping production lines are mainly Jinan Second Machine Tool Group Co., Ltd. and Qiqihar Second Machine Tool Group Co., Ltd. Through scientific and technological research, as well as the introduction of the design and manufacturing technologies of famous companies such as Schuler, American Wilson, and Komatsu of Japan, their independent development capability and manufacturing level have been significantly improved, providing dozens of stamping production lines for China's car manufacturers.

Currently, the flexible technology used in large automatic stamping lines has matured. The numerical control of the main assembly of the stamping production line lays the foundation for the automation of the stamping production line. The flexible transfer technology, off-board simulation technology, off-line programming technology are improving day by day; especially the practical use of mold automatic exchange system, including mold automatic warehouse, automatic mold identification and extraction, automatic adjustment of mold working parameters, etc. To "personalize" large automatic stamping production lines

Production, order production and “just-in-time production” are possible. At present, the large-scale automatic stamping production line is arranged in series by a double-action press and several single-action presses. Before the double acting press, there is a demolition device, which is composed of a loading truck, a hydraulic jacking device, a magnetic layerer, a vacuum chuck lifter, a double material detector, a magnetic roller conveyor, a double material discharger, a cleaning oil coating device and a feeding device. Composition; there is a loading and unloading device between the double-acting press and the single-action press, including a hopper, a turning device, a conveying device and a feeder; a loading and unloading device between the single-action presses, by a hopper, conveying The device and the feeder are composed; the last single-action press is followed by a palletizing device consisting of a feeder, a conveyor and a pallet truck. The automatic rapid die change system, automatic rapid adjustment system, fault detection system and waste removal and transportation system application not only realize the automation of the stamping process, but also realize the flexibility of the production organization.

The large-scale multi-station press automatic stamping production line was put into use, marking the technological progress of China's large-scale automatic press line. This type of press line consists of a large multi-station press equipped with a demolition device and a palletizing device, which is much simpler than the conventional one-acting press and several single-action presses. A large multi-station press with a CNC hydraulic air cushion device combines stretching and other stamping processes onto a single press. The numerical control hydraulic air cushion can adjust the blanking force of the tensile workpiece through the four-corner control, thereby achieving single-action deep drawing, which not only simplifies the structure of the press, cancels the turning device, but also realizes the optimal control of the blanking force and improves the control. The quality of the tensile member reduces the scrap rate of the workpiece.

The large-scale multi-station press automatic stamping production line represents the development trend and the highest level of the current stamping production line. The development of CNC turret punch press CNC turret punching machine has experienced four stages: slow start, maturity, rapid development and perfection. During the "Eighth Five-Year Plan" period, Jinan Foundry & Forging Machinery Research Institute successfully developed China's first 400kN CNC turret punch press. During the "Ninth Five-Year Plan" period, some domestic enterprises generally optimistic about the market prospect of CNC turret punch presses, investing a large amount of human and financial resources for research and production, making CNC turret punch press the most complete CNC forging machine tool with technical support in China. During the “Tenth Five-Year Plan” period, CNC turret punch presses developed rapidly and healthily, forming Jinan Foundry & Forging Machinery Research Institute, Jiangsu Jinfangyuan CNC Machine Tool Co., Ltd., Hubei Sanhuan Forging Machine Co., Ltd., Jiangsu Yangli Group Co., Ltd., Jiangsu Ya Wei Machine Tool Co., Ltd. is the leader of the company.

During the "10th Five-Year Plan" period, the clutchless CNC turret punch press developed by Jinan Foundry & Forging Machinery Research Institute and the servo motor directly driven by Jiangsu Yangli Group Co., Ltd. directly drive the CNC turret punch press, which are innovative products. Although it is not a mainstream product, it represents a certain trend or trend of product development.

It should be pointed out that although the domestic products are roughly equivalent to the technical level of similar foreign products, it is still the products of famous foreign companies that represent the top level of today. CNC shearing machine and shearing line shearing machine are important equipment for sheet metal processing. CNC shearing machine is an early CNC forging machine. Since the CNC shearing machine is relatively simple in technology, most companies producing shearing machines can produce CNC shearing machines.

The shearing machine is divided into two types according to the structure: a gate type shearing machine and a pendulum shearing machine; according to the transmission mode, there are two types of mechanical transmission shearing machine and hydraulic transmission shearing machine. Due to the advantages of hydraulic transmission in control, CNC shearing machine mainly adopts hydraulic transmission mode, and CNC hydraulic pendulum shearing machine is more than CNC hydraulic gate shearing machine.

The domestic production of CNC shearing machines is superior to the products and quality of Shanghai Chongshe Machine Tool Plant, Hubei Sanhuan Forging Machine Co., Ltd. and Jiangsu Yawei Machine Tool Co., Ltd. During the "10th Five-Year Plan" period, the CNC shearing machine has crossed the stage of its various aspects in terms of structure and configuration, and gradually moved closer to the international mainstream. At present, most CNC shearing machines adopt integral welding structure, aging treatment, good strength, rigidity and precision retention. The integrated hydraulic servo drive greatly improves the reliability of machine tool operation; The material, thickness and shear length of the material automatically complete the cutting angle, shear stroke, blade clearance and back gauge adjustment; it can be equipped with a front feeding system or a rear feeding device, which integrates feeding and unloading, effectively Increased automation of the equipment.

The CNC shearing production line is based on a CNC shearing machine and is equipped with an uncoiler, a leveling machine and its auxiliary devices. The CNC shearing production line can be divided into a transverse shearing line and a vertical shearing line according to the shearing form, and there is also a composite cutting line which can be cut horizontally or vertically. The CNC shearing line can process cold-rolled steel sheets, galvanized steel sheets, stainless steel sheets, color-coated steel sheets, aluminum sheets and other metal sheets, and is especially suitable for industries such as vehicle manufacturing, household appliances, food machinery, packaging machinery, and steel plate distribution centers.

The technical level of CNC cutting production line in China is close to the international advanced level. The maximum speed of sheet feeding can reach 100-120m/min, the precision of shearing length is ±0.3mm/2000mm, and the diagonal precision of shearing sheet is ±0.5. Mm / 2000 × 650mm2, when the length of the shear sheet is 300-2500mm, the productivity is 90-20 pieces/min.

Jinan Jiemai Forging Machinery Engineering Co., Ltd. and Jiangsu Yawei Machine Tool Co., Ltd. are the early development and production of CNC cutting production lines in China, and their technical strength, product level and market resilience are outstanding.

The CNC angle shearing machine is a special shearing machine used for the chamfering process of the sheet metal. It is usually used together with the CNC bending machine and is an indispensable equipment for processing box parts. The ordinary CNC angle shearing machine is compact in structure and convenient in operation. The cutting angle is adjustable from 90° or 30° to 140°, and the function is single. The multi-function CNC angle shearing machine has two working positions. The main working position is adjustable by 90° or 30°~140°. The auxiliary station can punch or punch the plate. CNC angle shears are used as auxiliary machines, and many companies producing CNC turret punch presses and CNC bending machines are produced.

CNC multi-function machining machine and CNC composite processing line CNC multi-tasking machine is a new type of CNC forging machine after the CNC turret punching machine. The machine integrates the CNC turret punching machine with the CNC angle shearing machine, and completes the punching, forming and shearing process of the sheet at one time, which is especially suitable for the processing of panel workpieces with subsequent bending processes.

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Author:

Ms. SU LAN RONG

ΗΛΕΚΤΡΟΝΙΚΗ ΔΙΕΥΘΥΝΣΗ:

susu@cn-tianhui.com

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++86 13396680822

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