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4.整体拘束从多个拘束部位对工件所做的整体拘束,通常是在特定场合下使用专用夹具进行的。大板接头焊接平台的拘束方式如图79所示。其中a)为上加压式,即在将移动横梁固定于相应部位后,再用气缸对工件上方进行加压。从经济性和加压均匀性考虑,多采用图80所示的加压方法。b)为磁力吸附式,即用电磁铁从工件下方进行吸附固定。这种方式虽然成本稍高一些,但却具备操作方便的优点。电
4. Overall restraint The overall restraint on workpieces from multiple restraint sites is usually carried out using special fixtures on certain occasions. Figure 79 shows the restraining method of the big plate joint welding platform. Which a) for the pressurized, that is moving the beam fixed in the corresponding parts, and then use the cylinder above the workpiece to be pressurized. In terms of economy and pressure uniformity, the pressurization method shown in Fig. 80 is often used. b) for the magnetic adsorption type, that is, using the magnet from the bottom of the workpiece adsorption and fixation. Although slightly higher cost of this approach, but it has the advantages of easy operation. Electricity