Application of High-efficiency Cutting Equipment in Thick Plate Cutting of Construction Machinery

With the rapid development of science and technology, the construction machinery industry has gradually become more refined management, and the requirements for product quality are becoming more and more strict, which makes the preparation and processing of structural parts face greater challenges. After many years of accumulation and development, Shantui has made great progress in the field of structural parts preparation and processing. Shantui Material Forming Division has complete cutting and forming equipment, and has achieved in terms of product quality and production capacity. The domestic leading level, product quality has been unanimously recognized by customers.

First, advanced cutting and forming equipment has been widely used

The welding production of Shantui bulldozer structural parts has completely eliminated the backward manual cutting and profiling cutting process, and advanced numerical control and laser cutting processes have been widely applied. Due to the application of heavy plates in engineering machinery and the deformation of long strips, coupled with the complex shape and high precision requirements of some workpieces, in order to improve efficiency and quality and improve production comprehensive benefits, CNC cutting technology is obtained in the field of engineering machinery. More and more widely used.

In order to meet the process requirements of cutting objects, Shantui has vigorously promoted plasma and laser cutting technology in recent years. The ratio of plasma cutting and laser cutting equipment has reached 70%. In addition, it also targets the maturity of cutting technology at home and abroad. Selectively determine domestic purchases or imports. Shantui has the full range of cutting function from 0.2 to 300mm. It has high-precision cutting equipment such as laser cutting machine, fine plasma cutting machine and flame cutting machine, which can fully meet the cutting quality of various materials. Cutting equipment such as Figure 1 and Figure 2 show.

In the process of sheet metal forming, Shantui has advanced equipment such as CNC bending machine, press machine, leveling machine and coiling machine. The bending machine has a bending capacity of 130~2000T, which can complete thin plate parts, high strength plates and large scale. The forming process of the workpiece can basically meet the forming requirements of the workpiece in the engineering machinery industry. Figure 3 shows the 1000T CNC bending machine.

Second, the wide application of cutting processing equipment

The structural parts of the construction machinery industry are processed, mainly for the processing of weld bevels. According to the structure and requirements of the groove, Shantui introduced a large number of cutting robot systems in addition to large-scale boring and milling equipment, so that the processing level of the groove reaches the advanced level at home and abroad, and the flexibility of the whole processing technology is greatly improved. The cutting robot has an automatic homing tracking system (see Fig. 4), which can automatically align and cut according to the specific shape of the beveling edge; for new products, the system programming is simple and easy to operate; at the same time, it can share the groove of other boring and milling equipment. Processing tasks. The cutting robot system greatly improves the product quality of the groove processing, optimizes the groove processing technology, improves the production efficiency, and reduces the labor intensity of workers.

Third, the application of FastCAM nesting software on CNC cutting machine

At present, industrial enterprises in China use flame, plasma, laser and other CNC cutting machines for CNC cutting production of steel plates in the blanking workshop. However, the problem of low efficiency and high consumables in the use of CNC cutting machines is very common. The first is the low utilization rate of the steel casing, and the waste of the remaining steel is seriously polluted, resulting in more cutting and more waste. Secondly, the drawing, nesting and programming work is inefficient, which makes the CNC cutting machine use very inefficient. With the continuous rise of steel prices, more and more enterprises have realized the seriousness of the problems in the operation of CNC cutting machines, and tried their best to improve the utilization rate and cutting efficiency of steel in CNC cutting. The CNC cutting machine itself should be a large-volume and high-efficiency cutting and cutting production equipment, and the matching CNC cutting nesting software is the production command and dispatch center of the CNC cutting machine. If there is no good CNC cutting nesting software or if the CNC cutting nesting software is not used, it will lead to waste of steel and low efficiency of production, and it will not meet the high-volume and high-efficiency production requirements of CNC cutting machine.

Shantui CNC cutting machine currently mainly uses FastCAM nesting software. FastCAM software is a nesting software specially used for cutting and cutting of CNC cutting machine. It is suitable for CNC cutting machine such as flame, plasma and laser. It is a set of FastCAM drawing, FastNEST automatic nesting, FastPATH automatic programming, and FastPLOT cutting simulation. The complete CNC cutting nesting software consists of four modules consisting of inspection and cost calculation.

The main features of FastCAM software are as follows:

(1) Full-featured From CAD drawing, DXF/DWG optimization processing, interactive automatic nesting, automatic programming, to cutting simulation check and cost calculation.

(2) Interactive nesting function to achieve human-computer interaction, fully combine the experience of human nesting and the computing speed of the computer, so that the nesting efficiency and nesting utilization rate reach double high.

(3) Common edge cutting function is an effective means to improve the utilization rate of nesting and save steel.

(4) Residual material nesting function In addition to the whole board and multi-plate nesting, the residual sheet nesting and storage management functions are effective means to save and reuse the remaining steel sheets.

Fourth, the conclusion

The extensive application of CNC cutting automation equipment in the field of Shantui blanking and bevel processing has greatly improved product quality and production efficiency, reduced labor intensity, realized flexible management, improved product quality, and brought Shantui Actual economic benefits; at the same time, we also see that there is still a big gap between our level of automation and foreign companies. As the leader in the bulldozer production industry, Shantui should continue to explore and improve the selection and application of automation equipment. To increase productivity and drive the healthy development of the bulldozer production industry.

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