Dismounting-welding integrated hot air head

Abstract

The invention relates to a dismounting-welding integrated hot wind head comprising a fixed seat, a sucker rod, a main shaft, an air cover, a hot air pipe and a cold air pipe, wherein the main shaft comprises a hollow shaft rod and a connecting disc positioned at the lower part of the shaft rod, the shaft rod of the main shaft is rotationally installed in the fixed seat, the air cover is fixedly arranged below the connecting disc, the hot air pipe and the cold air pipe are installed on the connecting disc, and air passages of outlets of the hot air pipe and the cold air pipe are communicated with an air chamber on the air cover; and the sucker rod is installed in an inner hole of the shaft rod of the main shaft and synchronously rotates with the shaft rod of the main shaft, and the outer wall of the sucker rod is matched with the inner hole of the shaft rod in a sliding mode. The dismounting-welding integrated hot wind head is mainly used for automatically assembling, producing and repairing circuit boards. Compared with the prior art, the dismounting-welding integrated hot wind head has the advantages of convenient temperature control, good welding quality, high production efficiency and long service life.

Description

[technical field] [0001] The invention relates to automatic circuit board assembly production or repair equipment, in particular to an integrated hot air head for desoldering. [Background technique] [0002] In the field of automatic assembly production and rework of circuit boards, in order to ensure quality and efficiency, the accuracy of temperature control is very important when heating and cooling circuit boards. The accuracy of temperature is mainly reflected in the heating and cooling time, the rate of rise and fall, and the temperature uniformity of the heated area. In highly automated applications, equipment is also required to ensure operational accuracy. [0003] Such as figure 1 with figure 2 As shown, the traditional hot air head heating and cooling share a single channel 201, and there is no mixing device, there will be many problems: [0004] a. When cooling the workpiece, affected by the high-temperature waste heat in the channel 201, the cooling is slow...

AI Technical Summary

Problems solved by technology

[0008] a. The slender suction pipe 202 is in contact with the high-temperature air in the air chamber 205, which is prone to deformation and is easily damaged by human beings. It is difficult to maintain its straightness and service life, thereby affecting its rotation accuracy, processing quality and production efficiency.

[0009] b. The suction rod drives the workpiece to rotate, and the air nozzle 204 installed on the shell cannot rotate synchronously, and interference between the welded component and the air nozzle 204 is likely to occur, so that the welded workpiece cannot be positioned accurately

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