Automatic welding jig for engineering machinery excavating equipment

Abstract

The invention discloses an automatic welding jig for engineering machinery excavating equipment, which comprises a welding base, wherein the welding base comprises a bottom plate and a support; a shovel plate pressing device, a supporting tube positioning reference, a supporting arm vertical pressing device, a supporting arm horizontal pressing device, a bearing seat positioning shaft, an oil cylinder lug plate positioning shaft and a vertical pressing quick clamp are arranged on the bottom plate; the shovel plate pressing device comprises a shovel plate base support pushing screw rod, a guide rod and a pressing block; the supporting tube positioning reference is fixed on the welding base; the supporting arm vertical pressing device comprises a support, a cantilever and a pressing screw rod I; the support is fixed on the welding base; the pressing screw rod I is connected with the cantilever; the supporting arm horizontal pressing device comprises a bracket I and a pressing screw rod II; the bracket I is fixed on the welding base; and the pressing screw rod II is connected with the bracket I. According to the jig, overall welding automation can be achieved, the jig can accurately position all parts and is provided with the pressing devices, therefore, part displacement caused by welding thermal deformation can be avoided, and pressing is convenient and fast.

Description

technical field [0001] The invention relates to an automatic welding jig for excavating equipment of engineering machinery, which belongs to the field of engineering machinery. Background technique [0002] The welding of existing engineering excavation parts mostly adopts partial welding, manual welding, which is inefficient, and there is a large welding deformation during the welding process, which requires post-welding plastic correction, manual welding is easy to miss the installation parts, and the size of manual assembly Inaccurate and poor consistency, manual welding is affected by objective factors, unstable parameters, unstable welding leg size, insufficient penetration, and unsightly shape, so a jig is needed to realize the overall welding automation, so as to avoid welding heat Displacement of parts due to deformation. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides an automatic...

AI Technical Summary

Problems solved by technology

[0002] The welding of existing engineering excavation parts mostly adopts partial welding, manual welding, which is inefficient, and there is a large welding deformation during the welding process, which requires post-welding plastic correction, manual welding is easy to miss the installation parts, and the size of manual assembly Inaccurate and poor consistency, manual welding is affected by objective factors, unstable parameters, unstable welding leg size, insufficient penetration, and unsightly shape, so a jig is needed to realize the overall welding automation, so as to avoid welding heat Displacement of parts due to deformation

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