An automatic welding ring device for thin-walled short u-bend pipe

Abstract

The invention discloses a device for automatically sleeving a short thin-walled U-shaped elbow with welding rings, and relates to the technical field of automatic devices. By adoption of the device, the phenomena of falling off of welding rings and deflection sleeve-connection positions of the welding rings can be avoided. The device comprises a welding ring feeding unit, a welding ring guide unit and a welding ring sleeving unit, wherein the welding ring feeding unit is provided with one or more feeding devices, and the welding rings are sent out horizontally from discharge outlets of the feeding devices after being arranged orderly; the welding ring guide unit is provided with a guide device, at least two guide grooves are formed in the front face of the guide device, the top end of each guide groove is connected with the corresponding discharge outlet through a transverse groove, a welding ring pushing mechanism is mounted at the transverse grooves, a welding ring outlet is formed in the bottom end of each guide groove, a through hole penetrating through the back face of the guide device is formed in each welding ring outlet, and a baffle mechanism used for preventing the welding rings in the outlets from falling off is arranged on the front face of the guide device; and the welding ring sleeving unit is arranged on the back face of the guide device, and provided with two or more push rods, a push rod cylinder assembly used for driving the push rods and an overall drive mechanism used for driving the push rods and the push rod cylinder assembly, and the push rods of two push rod assemblies are used for sleeving straight tube sections at the two ends of the short U-shaped elbow with the welding rings at the outlets.

Description

technical field [0001] The invention relates to the technical field of automation equipment, in particular to an automatic sleeve welding ring device for thin-walled short U-bend pipes. Background technique [0002] At present, the heat exchange pipes of heat exchange equipment such as air conditioners, refrigerators, and heat exchangers are welded and fixed by long U-bends and short U-bends, such as Figure 12 , Figure 13 As shown, the solder required for its welding and fixing is generally socketed at the straight pipe section of the short U bend, called a welding ring. The socketing position of the welding ring must be accurate and cannot be deflected, otherwise it will affect the welding quality of the pipe and cause Reduced reliability of heat exchange equipment. [0003] The existing welding rings of short U-bend pipes basically adopt manual or semi-automatic operation methods, and there are problems such as labor intensity, low efficiency, and poor socketing accurac...

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Problems solved by technology

[0002] At present, the heat exchange pipes of heat exchange equipment such as air conditioners, refrigerators, and heat exchangers are welded and fixed by long U-bends and short U-bends, such as Figure 12 , Figure 13 As shown, the solder required for its welding and fixing is generally socketed at the straight pipe section of the short U bend, called a welding ring. The socketing position of the welding ring must be accurate and cannot be deflected, otherwise it will affect the welding quality of the pipe and cause Reduced reliability of heat exchange equipment

[0003] The existing welding rings of short U-bend pipes basically adopt manual or semi-automatic operation methods, and there are problems such as labor intensity, low efficiency, and poor socketing accuracy in the actual production process.

In order to solve this problem, although some domestic enterprises adopt automatic feeding + guide groove blanking and then position the collar through the collar rod assembly, the design of the guide groove adopts continuous blanking, and the corresponding outlet of the collar rod assembly With no baffle design, in the actual work of welding ring welding, the phenomenon of welding ring dropping is common; at the same time, the position of the welding ring at the discharge port is prone to deflection, resulting in the welding ring being socketed on the thin-walled short U elbow The position is deviated, which affects the welding quality of the pipeline

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