Welding positioner is a weldment positioner that rotates and tilts the weldment so that the weld on the weldment is placed in a favorable welding position. The welding positioner is mainly used for the turnover and displacement of non long weldments such as frame, base, flange and head. It is classified according to the basic structural form of welding positioner, including arm extension type, seat type and double seat type.

1、伸臂式變位機的性能特點與使用范圍

1. Performance characteristics and application range of outrigger positioner

回轉工作臺按裝在伸臂的一端，伸臂相對于某一傾斜軸成角度回轉，而此傾斜軸的位置多是固定，但有的也可小于100度的范圍內上下傾斜。

The rotary table is installed at one end of the extension arm, and the extension arm rotates at an angle relative to a certain tilt axis, and the position of this tilt axis is mostly fixed, but some can also tilt up and down within the range of less than 100 degrees.

適用范圍：電動機驅動的，承載能力多在0.5噸左右，適用小型焊件的翻轉變位。液壓驅動的，承載能力多在10噸左右，適用于結構尺寸不是很大的但自重較大的焊件。它們在焊條電弧焊中應用較多。

Scope of application: motor driven, with a bearing capacity of about 0.5T, suitable for turnover and displacement of small weldments. It is hydraulically driven, with a bearing capacity of about 10 tons. It is suitable for weldments with small structural size but large self weight. They are widely used in electrode arc welding.

2、座式焊接變機性能特點與使用范圍

2. Performance characteristics and application scope of seat welding transformer

工作臺連同回轉機構支撐在兩邊的傾斜軸上，工作臺以焊速回轉，傾斜軸通過扇形齒輪或液壓缸，多在110-140度的范圍內恒速旋轉。

The worktable and the rotary mechanism are supported on the inclined shafts on both sides. The worktable rotates at the welding speed. The inclined shaft rotates at a constant speed in the range of 110-140 degrees through sector gears or hydraulic cylinders.

適用范圍：0.5~50噸的翻轉變位，是目前產量大，規格全，應用廣的結構形式，常與伸臂式操作機或弧焊機器人配合使用

Scope of application: the turnover displacement of 0.5 ~ 50 tons is a structural form with large output, complete specifications and wide application. It is often used in conjunction with boom operator or arc welding robot

3、雙座式焊接變位機性能特點與使用范圍

3. Performance characteristics and application scope of two seat welding positioner

工作臺在"U"形架上，以所需的焊件回轉。該機不僅穩定性好，而且如果設計得當，傾斜運動的重 心將通過或接近傾斜軸線，使傾斜驅動力大大減速小，因此重型變位機多有這種結構。

The worktable is on the "U" frame and rotates with the required weldment. The machine not only has good stability, but also if properly designed, the center of gravity of the tilt movement will pass through or close to the tilt axis to greatly reduce the speed of the tilt driving force. Therefore, most heavy positioners have this structure.

適用范圍：50T以上的重型大尺寸焊件翻轉，多配大型門式焊接操作機，或伸臂式焊接操作機配合使用

Scope of application: heavy-duty large-size weldment turnover above 50t is mostly equipped with large gantry welding operator or outrigger welding operator