Manifold welding machine

Abstract

The invention relates to a manifold welding machine. The manifold welding machine comprises a manifold upper portion driving and positioning mechanism, a hot melting plate driving mechanism, a manifold lower portion driving and positioning mechanism and a control system, wherein the control system controls the hot melting plate driving mechanism to move forwards to a working position; the upper driving and positioning mechanism and the lower driving and positioning mechanism move downwards and upwards respectively, welding surfaces of the upper portion and the lower portion of a manifold are attached to a hot melting plate for being heated, and heating melting of the welding surfaces is completed; the upper driving and positioning mechanism and the lower driving and positioning mechanism continue to move downwards and upwards respectively to attach the two hot melting surfaces of the upper portion and the lower portion of the manifold together; when the two hot melting surfaces of theupper portion and the lower portion of the manifold begin to be attached to each other and in contact with each other, an upper pressure sensor and a lower pressure sensor sense pressure increase andtransmit the pressure increase to the control system, and the control system immediately reduces the running speed of the manifold upper portion driving and positioning mechanism and the manifold lower portion driving and positioning mechanism; and when the pressure sensed by the pressure sensors is increased to a set maximum value, the welding surfaces begin to be cooled until the welding surfaces are completely cured.

Description

technical field [0001] The invention relates to a manifold welding machine. Background technique [0002] Manifold is a common part of the car, which is usually produced separately into the upper part of the manifold and the lower part of the manifold, and then the two are welded together. [0003] Existing manifold 6 welding mostly adopts hot plate welding, because there are many welding surfaces 623 on the upper part 61 of the manifold and the lower part of the manifold 62, and there are various types of welding surfaces such as plane 621 and inclined plane 622, see Figure 10 , which mainly has the following deficiencies: [0004] 1. The joining speed of the upper part of the manifold and the lower part of the manifold is random and uncertain, so that the melting surface of the upper part of the manifold and the lower part of the manifold may have a greater impact when they are butted together, and most of the molten material will be squeezed out to the On both sides of...

AI Technical Summary

Problems solved by technology

[0004] 1. The joining speed of the upper part of the manifold and the lower part of the manifold is random and uncertain, so that the melting surface of the upper part of the manifold and the lower part of the manifold may have a greater impact when they are butted together, and most of the molten material will be squeezed out to the On both sides of the welding surface, some incompletely melted materials will participate in mutual fusion, which will lead to incomplete fusion and solidification of the joint surface, and at the same time, a large impact will cause slippage and dislocation of the inclined surface, which will reduce the strength of the weld seam

[0005] 2. When the manifold is solidified, the final positions of the upper part of the manifold and the lower part of the manifold are uncertain, and will be affected by the product height tolerance of the upper part of the manifold and the lower part of the manifold and the fluctuation of the depth of the molten layer on the melting surface, which will cause changes in the height of the weld seam, thus Affects weld strength

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