筒体结构的搅拌摩擦焊接设备及其方法

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筒体结构的搅拌摩擦焊接设备及其方法

本发明公开了一种火箭燃料贮箱筒体的搅拌摩擦焊接设备，包括：固定在底座上的外立柱与内立柱；它们的上端面通过气动锁紧机构连接或松开；内立柱上安装有焊接夹具和传动机构；传动机构上安装有焊接主轴；焊接主轴上安装有搅拌头，焊接主轴通过传动机构可沿着内立柱上、下运动；焊接主轴通过导轨与主轴基座连接，可沿主轴方向运动；焊接主轴与主轴基座可一起沿着导轨在垂直方向运动；外立柱固定有焊接垫板；在底座周围，还通过辅助立柱安装有若干个辅助装置。本发明还公开了这种焊接设备的焊接方法。本发明显著提高了筒体结构的接头性能和生产效率，降低了焊接缺陷的发生率。

Friction-stirwelding equipment for cylindrical structure and welding method thereof

Theinvention discloses friction-stir welding equipment for a rocket fuel storagetank cylinder and further discloses a welding method of the welding equipment. Thefriction-stir welding equipment comprises an outer vertical column and an innervertical column which are fixed to a base. The upper end faces of the outer verticalcolumn and the inner vertical column are connected or loosened through apneumatic locking mechanism; a welding clamp and a transmission mechanism are mountedon the inner vertical column; a welding spindle is mounted on the transmission mechanism,and a stirring head is mounted on the welding spindle; the welding spindle canmove up and down along the inner vertical column through the transmissionmechanism, is connected with a spindle base through a guide rail and can movein the spindle direction, and the welding spindle and the spindle base can movein the vertical direction along the guide rail; a welding base plate is fixedto the outer vertical column; and a plurality of auxiliary devices are further mountedaround the base through auxiliary vertical columns. The joint performance andproduction efficiency of a cylindrical structure are improved significantly,and the occurring rate of welding defects is decreased.