Overview on Types of Welding Postioner and its Choice

The Subject of This Blog on Welding Positioner:

1) Importance: Welding Positioner is a kind of very important Welding Equipment, which is widely used across industries for fabricating different kinds of workpieces;

2) Specialty: Because of such diversified structures of workpiece, and correspondingly diversified customer requirement on position change, Welding Positioner and its Welding Turning Table comes in wide variety of structures/ functions/ configurations/ operations, which test the capability of supplier on designing and developing to meet customer demand;

3) Subject: This short blog will give a summary on common seen categories of Welding Positioner and its Rotary Welding Table in use, so that customers can have a quick decision on the proper type of Welding Positioner for selection.

• Usage and Application of Welding Positioner

• Classification and Models of Welding Positioner

• Technical Function Views on Welding Positioner

A. Usage and Application of Welding Positioner / Rotary Welding Table:

1. Function: Welding Positioner changes workpiece position in the form of:

1) 0° ~ 360° infinite rotation;

2) 0° ~ 120° tilting;

3) Up and down movement;

4) Horizontal moving;

To attain optimum position of structure members secured on Welding Positioner, so as to implement welding with ideal ergonomics position, and guarantee the best welding quality;

2. Welding Center with Other Welding Equipment:

In practical application, Welding Positioner either works individually, or with other Welding Equipment, especially Welding Rotator, as well as Column and Boom Automatic Welding Equipment, to be formed into tailor made Welding Center, fulfilling complicated welding tasks for customers;

3. Applicative Industry of Welding Positioner and its Welding Turning Table:

Welding Positioner is a necessary Welding Equipment where structure members to be fabricated: In the industries of Construction Machinery, Vehicle, Engineering Machinery, sees broad use of different types of Welding Positioner.

B. Classification and Main Specifications of Welding Positioner and its Rotary Welding Table:

In practical use, Welding Positioner comes into 6 broad categories of:

1. HB series Standard Single Work Table Two Axis Revolving and Tilting Welding Positioner: (Fig.1)

1) Two Degrees of Freedom for its Rotary Welding Table:

a) 0° ~ 360° infinite rotation;

b) 0° ~ 120° tilting;

c) Applicable for fabricating small size structure members;

2) Loading capacity of its Rotary Welding Table is from 100kg to 30 Ton;

3) On the basis of standard structure and function, this model of Welding Positioner also has variations of:

a) Work table elevating function: The 3^rd axis degrees of freedom; (Fig.2)

b) Servo drive for accomplishing high precision control;

c) Special Rotary Welding Table with special welding fixture, for special workpieces;

d) Double sets of Rotary Welding Table, which are positioned independently from each other, and can have its interval adjusted, based on length of the workpieces connected through; (Fig.3)

2.  LBS series Two/ Three Axis L type Welding Positioner: (Fig.4)

1) Two degrees of freedom for Its Welding Turning Table:

a) 0° ~ 360° infinite rotation;

b) 0° ~ 360° tilting in the air;

c) The 3^rd Axis: Rotary Welding Table elevation, as Elevating L type Welding Positioner;

d) Applicable for fabricating larger size structure members;

2) Loading capacity of its Rotary Welding Table is from several hundred kg to 4 Ton;

3. HTHB Series Two/ Three Axis Head and Tail Welding Positioner:(Fig.5)

1) Two Degrees of Freedom for its Welding Turning Table:

a) Workpiece elevation;

b) 0° ~ 360° tilting in the air;

c) Optional the 3^rd axis degree of freedom: 0° ~ 360° infinite rotation in the air;

d) Applicable for fabricating long length structure members;

2) Two types of Mechanical Structures in Head and Tail Elevating Welding Positioner:

a) Both sets of upright columns, which are head and tail of the Welding Positioner, are all fixed style into workshop floor;

b) One set of column is fixed, and the other set can be moved along rails, based on length of workpiece fit through;

3) Loading capacity of Elevating Head and Tail Welding Positioner is from several hundred kg to 20 Ton;

4. SAHT Series Single Axis Horizontal Welding Turning Table: (Fig.6)

1) Loading capacity of its Rotary Welding Table is from several hundred kg to 30 Ton;

2) When installed with servo motor drive, loading capacity of its Rotary Welding Table is up to 3 Ton;

3) Applicable for fabricating circumferential seams on large size structure members;

5. SHB Series Single Axis Vertical Welding Positioner: (Fig.7)

1) Its rotary welding table is assembled in upright vertical orientation;

2) Loading capacity of its Welding Turning Table is up to 5 Ton;

3) Applicable for fabricating circumferential seams on small size structure members;

6. PR Series Special Design Pipe Welding Rotator: (Fig.8)

Two Degrees of Freedom for its Rotary Welding Table:

1) 0° ~ 360° infinite rotation;

2) -45° ~ 45° tilting in the air;

3) Applicable for fabricating Pipe Flange Assembly and or Pipe Elbow Assembly.

C. Technical Function Views on Welding Positioner and its Welding Turning Table:

1. Safety Assurance on Rotary Welding Table Revolving, Tilting and Elevation:

Safety is the first issue which should be considered and guaranteed for developing any kind Welding Positioner. For this purpose:

1) Driving motors of rotary welding table for revolving and tilting are all braking type;

2) For Wuxi JACK Elevating L type Welding Positioner, hydraulic oil cylinders are adopted for driving elevation of its rotary welding table, instead of ordinary motors selected by some other suppliers; (Fig.9)

3) There are hard stops equipped in all motions of rotary welding table: Revolving, Tilting and Elevation;

2. Welding Speed of Welding Positioner:

1) Revolving linear velocity of Welding Turning Table is welding speed in all categories of Welding Positioner;

2) This speed is controlled with A.C. inverter, to realize stepless continuous change, and displayed in digital display meter;

3) Adjustment on welding speed is convenient: Just turn the speed knob on the operating pendant of Welding Positioner, which is installed along side the digital display meter; (Fig.10)

3. Gravity Center Distance and Eccentric Center Distance in Welding Positioner:(Fig.11)

1) This is one of the core technical issues in developing all types of Welding Positioner;

2) It determines reliability of Welding Positioner and its Welding Turning Table performance, and should be calculated and validated carefully during NPI (New product introduction).