Bolt automatic placing unit for net rack connecting rod automatic welding production system

Abstract

The invention discloses a bolt automatic placing unit for a net rack connecting rod automatic welding production system. The position corresponding to a sealing plate or a conical head pushing deviceis arranged at the left end and / or the right end of a welding working platform; and the bolt automatic placing unit comprises a bolt feeding bracket, a bolt grabbing and stacking mechanical arm, a bolt grabbing and stacking manipulator and a bolt automatic placing electric control device. For the bolt automatic placing unit for the net rack connecting rod automatic welding production system, a bolt automatic placing controller can calculate an offset according to feedback of a pattern recognition sensor and then performs adjustment on the position of the bolt grabbing and stacking manipulatoraccording to the calculated offset, so that bolts in reverse directions can be subjected to accurate coordinate grabbing and placed into the end part of a steel pipe workpiece before welding through the bolt grabbing and stacking mechanical arm and the bolt grabbing and stacking manipulator, the automation degree is high, the defects of manual operation can be avoided, and the bolt automatic placing unit is particularly suitable for the net rack connecting rod automatic welding production system.

Description

technical field [0001] The invention relates to an automatic material insertion unit of an automatic welding production system, in particular to an automatic bolt insertion unit of a production system suitable for automatic welding of grid connecting rod workpieces, and belongs to the technical field of grid connecting rod manufacturing. Background technique [0002] The grid structure is a space structure with a large span covered by connecting multiple grid connecting rods through nodes in a certain grid form. The grid structure has the advantages of good integrity, large space rigidity, and stable structure. Not only is it light in weight , The on-site construction workload is small, the construction speed is fast, and the height of the grid structure is small, which can effectively use the space, so it is widely used in the construction industry. [0003] The grid structure nodes made of steel mainly include cross-plate nodes, welded hollow ball nodes and bolt ball nodes...

AI Technical Summary

Problems solved by technology

[0005] 1. Although the pre-spot welding can be carried out by means of tooling positioning, there will still be spot welding deviations in the manual operation method, which cannot accurately ensure the coaxiality of the sealing plate or the through hole of the cone head and the steel pipe body, which will affect the product quality , It is easy to cause subsequent installation problems such as installation eccentricity and eccentric load on the grid connecting rod;

[0006] 2. Although the welding is carried out on the basis of pre-spot welding, the welding of the circular weld, even if the welding method is assisted by tooling, manual welding is usually difficult to ensure the uniformity of the weld, and thus cannot effectively control the welding deformation. control;

[0007] 3. The way of manual operation has high requirements on the skills and proficiency of personnel. During the welding process of circular welds, welding interruptions will inevitably occur, which intensifies the degree of welding deformation, and human factors such as the operator's emotions also affect the welding quality. influence

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