Chuck Fixing Lifting Type Welding Positioner with Double Table Top

1.       The Formation of Double Table Top Head and Tail Lifting type Welding Positioner:

1)      The double table top Elevating type Welding Positioner is come into being on the basis of Head and Tail Welding Positioner, which is added with the second degree of freedom: Elevation of Weld turntable, or workpiece;

2)      So, the lifting type Head and Tail Weld Positioner here has 2 degrees of freedom:

a)       Weld turntable (Or workpiece) revolve around the central horizontal axis of the Lifting type Head and Tail Welding Positioner, which is the main degree of freedom. Please check below picture in yellow color square frame;

Elevating type Head and Tail Welding Positioner: (Fig.1) 

b)      Weld turntable (Or workpiece) travels up and down in vertical direction, along column of the Lifting type Welding Positioner. It is the auxiliary degree of freedom. Please check above picture in orange color square frame;

3)      Secure of the Workpiece in Head and Tail Welding Positioner:

a)       Head and tail of the workpiece is fit on the Weld turntable by means of the chucks at both ends. The chucks, or connecting round plate have holes for securing bolting;

Elevating type Head and Tail Welding Positioner: (Fig.2)

b)      So, the chucks play the similar role as Welding Fixture in this Elevating type Head and Tail Welding Positioner.

2.       Why Introduce Elevation function to the Head and Tail Lifting type Welding Positioner?

1)      In Head and Tail Welding Positioner, horizontal axis revolve of Weld turntable is the main degree of freedom, through this motion, most majority of manual and automatic welding can be performed;

2)      During this revolving and welding process in the Head and Tail Welding Positioner, for large size workpiece, additional freedom of elevation is necessary:

a)       After the workpiece is fit onto the Weld turntable of the Head and Tail Welding Positioner, and in the revolving process, there exist potential risk of interference with the ground. Or, in other words, no sufficient spatial room for workpiece revolving; 

Elevating type Head and Tail Welding Positioner: (Fig.3)

b)      Under such occasion, the Weld turntable and workpiece should be raised to certain height for having sufficient aerial space revolving. This entails the development of Head and Tail Elevating type Welding Positioner.

3.       The Driving Way for Elevation in Lifting type Head and Tail Welding Positioner:

1)      Unlike elevation movement in L type Elevating type Welding Positioner, which adopts hydraulic system as energy source for its L arm elevation, in this Head and Tail Lifting type Welding Positioner, the up and down movement of Weld turntable is driven with motor reducer and transmitted with leadscrew or chain;

2)      The reason behind that is, with the double column at both ends of the Head and Tail Welding Positioner, one is driving type and the other is idle, they need to move in phase. The driving and transmission style of motor reducer has reliable performance in terms of synchronization. Comparatively, hydraulic transmission does not have good performance on this aspect. 

Elevating type Head and Tail Welding Positioner: (Fig.4)

4.       Technical Features of Elevating type Head and Tail Welding Positioner:

1)      Safety Measures of the Head and Tail Lifting type Welding Positioner:

To guarantee safety with its mechanical elevation system in this lifting type Weld Positioner, a series of measures are taken:

a)       Weld turntable elevation Motor is braking type;

b)      Chain and or leadscrew adopted for Weld turntable elevation are with higher insurance factor;

c)       Equipped with one stage reverse stroke self lock unit;

d)      Alarm Light for Weld turntable elevation, etc.

Elevating type Head and Tail Welding Positioner: (Fig.5)

2)      The revolve of Weld turntable is reversible ±0°~ 360° of adjustable revolution pace;

3)      Tonnage of Weld turntable in Head and Tail Elevating type Welding Positioner:

a)       Tonnage of this Head and Tail Weld Positioner is generally within the range of 1Ton ~ 5Ton, accounting for over 50% practice. And as high as 10Ton of Weld turntable or even more is also available;

b)      All of these Lifting type Head and Tail Welding Positioner are custom made: Which means technical proposal and specification need to be discussed and confirmed back and forth before final made;

4)      Vertical stroke of this Lifting type Welding Positioner, for 1Ton loading of Weld turntable, it is around 800mm~ 1000mm; For 5Ton it is around 2000mm.

5.       Technical Parameters of Lifting type Head and Tail Welding Positioner:

Below are technical parameters of Head and Tail Lifting type Welding Positioner: