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Robots in Japan Automotive Industry
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Overview
according to the Japan Robot Association (JARA) in April 1998 issued a report on the Japanese robot industry automation applications have the following conclusions.
And electrical / electronic industries, automobile industry is still one of the largest market for Japanese robot, from 1988 to 1999, the Japanese automobile industry in the cumulative total of 107,326 robots,mbt laarzen, accounting for the same period the machine in Japan 22% of the market total shipments. Industrial robot sales growth year after year until 1991. The robot of total sales in Japan reached 16,166 units. However, due to the so-called 1994 was only 6,078 units, accounting for only 38% of peak years.
The one hand, reflecting the sluggish Japanese investment; it also reflects Japan's automobile production capacity in the best compression. Idle robot is not used elsewhere. Delayed so that these departments to purchase new industrial robot. Next several years, we also see some signs of recovery. However, it is estimated the highest sales year in history, around 60%. In the foreseeable future, a considerable number of robots is expected to 'retire' (retirement age is estimated to use 12 to 15 years). However, to quickly return to a large number of sales to the Japanese automotive industry robot,
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Production technology changes in the They believe that the expanding Japanese market,
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toda lakel, Mazda Hofu Tawara factory or plant was the most advanced automobile plants in Japan a typical example.
Since the Automobile manufacturers are also aware that the lack of automated factory in which workers in the labor consciousness. Now they are trying to explore a coordinated approach workers and automation equipment. Toyota Kyushu factory is a very yu example. The plant's assembly line is divided into several loosely connected cells, so that each unit can be implemented in products between the storage; will be more attention on reducing the physical strength of workers, not just pay attention to the mechanization of labor, the ultimate result is to use fewer robots. In order to regain global competitiveness of Japanese car manufacturers are producing cars in overseas programs. For example, in the future production line will include many production units in place of the past is often used in a separate production line.
Recently, the modular production program is related to these topics one of the most frequently discussed topic, but is likely to be implemented in the near future. We will see in the automobile production system,
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Japan Automobile arc welding robot applications still accounted for the largest share (26%); spot followed (20%); more than half of the remaining industrial robots used in various various different types of production operations in various categories, which range of applications than the much larger overseas counterparts. Laser welding is not common in Japan (in Japan's automobile industry, nearly 90% of the lasers used for cutting the workpiece.)
Automotive industry in Japan at present, the robot for loading / unloading accounted for a relatively large number (15,403 units). Here, however, to remind the reader that, JARA statistics are often too large. It includes a simple Other countries often do not use it as industrial robots.
Molding robot in the discharge area, JARA the figures for the 805 units. Surprisingly small number. This does not reflect the actual installation of the number of molding robots. This is because a considerable number of molded plastic processing machines in the robot sector statistics. Compared with the figures in 1991, 1997, material handling robot is Japan the only growth applications (up from 835 units to 1,
tod formattods mensTods Boots,119 units.)
New technologies currently in the field of industrial robots, do not see any significant innovation. As mentioned above, application of industrial robots seems to have been at or near saturation, it is difficult to find new applications. However, there were different availability of supporting technology has matured greatly contribute to existing applications. For example, it is worth noting that a higher processing speed due to the introduction of the microprocessor to the robot controller, thus significantly improving the performance of the robot motion control, such as the robot manufacturers to damping algorithm, feedforward control , prediction algorithms embedded in advanced modern control theory to the robot controller. More precise positioning / set profile, higher speed, shorter time to adjust, even in the rigid structure of low-robots can achieve vibration-free movement and other characteristics, all contribute to productivity.
For spot welding applications, has been widely used in electric drive of the servo gun. In particular, Toyota has decided to come to this technology as standard equipment in Japan and overseas,belstaff milano, its all spot welding robots. According to Honda, the company said, with this technology can improve the welding quality, which even tried to use it to replace some of the welding operation. Movement within a short distance much shorter time. Fuji Electric, according to reports, the company recently introduced a low height of the spot welding robot, use it to weld the lower body parts. This little robot spot welding robot can be assembled together with the high,MBT Schuhe günstig, common on the upper body for processing, thereby reducing the length of the welding line.
Currently coordinating with the work of the second arc welding robot has been quite common. At this point, a piece of arc welding robot, and another robot workpiece clamping, which can not specifically designed for special high cost of the workpiece fixture, and to maintain optimal welding pressure. Currently, Toyota has started to thin steel plate welding 0.6mm thick (gap 2mm) of the arc welding robot. Because of this side of the arc welding robot from the plate into position without welding robot welding, as required, as both sides from the plate into the welding position, and therefore priority will be to replace some of the welding operation.
Currently in Japan, the laser welding is not common. However, the flexible body production line (FBL) program applications are increasing. In this case, various shapes of sheet metal parts are laser welded to form the body of the sheet metal. Expected in the future of laser application in the automotive industry will be increasing.
The motion control performance improvement, some new applications have become possible. An example is the fuel tank of the wire bonding. In order to weld the tank seams, using a special welding machine, designed for a specific tank shape. Shapes become more complex because the fuel tank in order to load into the car body's limited space,
tods sale, so as to meet the requirements of the robot's work tasks. In the past, to achieve this task difficult is that the line is difficult to maintain a constant welding speed (three-dimensional space, the tangential speed). The new robot controller has made it possible to achieve this goal. Batching applications also benefit from this technology.
Now,
tod meter, JARA is trying in all the robots robot manufacturer to establish a standard communication system. It is possible that in the automotive industry to benefit most from this standard. To control the network, the Japanese automobile industry is the most common bus, Device-Net; while Toyota is using its own developed ME-Net; Nissan with JEMA-Net (Japan Electrical Industry Network).
Whether the Japanese automotive industry to achieve the standardization of communication system, is uncertain. On the other hand, the Japanese robot manufacturer proposed a 'realistic robot simulation' (RRS)-compatible software interface. Therefore, the current Japanese car manufacturers (especially for spot welding applications) through, for example RoBCAD, I-Grip and other commercial simulation software,vibram five fingers outlet, can make all kinds of robot dynamic simulation.
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