Clamping and fixing device special for heating and ventilation pipeline welding

Abstract

The invention discloses a clamping and fixing device special for heating and ventilation pipeline welding. The clamping and fixing device comprises a clamping table, two fixed clamping seats are fixedly mounted on the clamping table, two mounting grooves, a mounting cavity and two moving grooves are formed in the clamping table, the mounting grooves communicate with the mounting cavity and the corresponding moving grooves, two supporting blocks are rotationally mounted in the mounting cavity, the two supporting blocks are each fixedly provided with a first lead screw, the thread directions of the two first lead screws are opposite, the ends, away from the supporting blocks, of the first lead screws penetrate through the mounting grooves and are each fixedly provided with a first rotary knob, and the two first lead screws are each provided with a moving block through a first ball nut. The clamping and fixing device has the advantages that the positions of movable clamping seats can be adjusted according to heating and ventilation pipes with different lengths, and the adjustment operation is simple and convenient and can be completed only by rotating the first rotary knobs; and meanwhile, the two heating and ventilation pipes to be welded can be rapidly clamped and fixed at the same time, single operation is not needed, and the clamping and fixing efficiency is relatively high.

Description

technical field [0001] The invention relates to the technical field of pipeline clamping, in particular to a special clamping and fixing device for heating and ventilation pipeline welding. Background technique [0002] HVAC includes three aspects of heating, ventilation, and air conditioning. It belongs to the field of architectural design. During the design and construction process, multiple HVAC pipes will be welded to form special HVAC pipes. At present, the welding of HVAC pipes will use special Welding clamping device for auxiliary operation. [0003] The traditional welding clamping device only clamps and fixes the end to be welded, and does not provide a support or clamping and fixing force for other positions of the HVAC pipe, and the overall clamping effect is relatively poor. [0004] Although the current welding clamping device adds a support seat to provide a support for the heating pipe, the support seat only provides a supporting effect, and does not provide ...

AI Technical Summary

Problems solved by technology

[0003] The traditional welding clamping device only clamps and fixes the end to be welded, and does not provide a support or clamping force for other positions of the HVAC pipe, and the overall clamping effect is relatively poor

[0004] Although the current welding clamping device adds a support seat to provide a support for the heating pipe, the support seat only provides a supporting effect, and does not provide a clamping and fixing effect for the heating pipe itself. The position cannot be changed, and the distance between the support seat and the welding end cannot be adjusted well according to the length of the heating pipe

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