A three-dimensional positioning tool for welding assembly of automobile floor

Abstract

The invention discloses a three-dimensional positioning tool of a vehicle base plate welding assembly. The tool comprises an object carrying tool plate; a support inclined mechanism is mounted on thelower surface of the object carrying tool plate; a clamping mechanism is arranged on the upper surface of the object carrying tool plate; a heat dissipation cooling mechanism is arranged at the lowerend of the object carrying tool plate; the clamping mechanism comprises an assembly three-dimensional block and a positioning fixture; the positioning fixture comprises a lower fixed support plate andan upper assembly clamping plate; the upper assembly clamping plate comprises a first thread plate and a second thread plate; vertical fixed rods are arranged at the upper ends of the first thread plate and the second thread plate; horizontal thread hole through plates are arranged at the upper ends of the vertical fixed rods; horizontal displacement bolts are arranged in the horizontal thread hole through plates; vertical thread hole through plates are arranged at the tail ends of the horizontal displacement bolts; and vertical clamping bolts are arranged in the vertical thread hole throughplates. A vehicle body is hoisted for three-dimensional welding, so that the damage to an object carrying plate during welding is reduced, the welding quality is improved, the vehicle base plate manufacturing cost is reduced, the heat dissipation function is improved, and the welding safety is improved.

Description

technical field [0001] The invention relates to the technical field of automobile floor welding, in particular to a three-dimensional positioning tool for an automobile floor welding assembly. Background technique [0002] The car floor is the car chassis armor. The scientific name of the car chassis armor is the car chassis anti-collision, anti-rust and sound insulation ("UNDERCOATING" primer), a high-tech adhesive rubber asphalt coating. It is non-toxic, high coverage and high adhesion, and can be sprayed on exposed parts such as vehicle chassis, wheel hubs, fuel tanks, car under panels, trunks, etc., and forms a firm elastic protective layer after quick drying, which can prevent flying stones and The impact of sand and gravel can avoid the erosion of moisture, acid rain and salt on the metal of the vehicle chassis, prevent the chassis from rusting and corrosion, and protect the driving safety of the car owner. [0003] The car floor is directly related to the handling, c...

AI Technical Summary

Problems solved by technology

[0004] At present, in the automobile floor manufacturing process, the workpiece needs to be positioned during the welding operation, and the welding operation can only be performed after positioning. The common positioning fixture is to directly clamp the workpiece on the loading plate for welding operation. The car floor is assembled by heating, high temperature or high pressure, which will cause huge damage to the load plate after long-term use, seriously affecting the service life. In addition, during welding, the workpiece and solder melt to form a molten area, and the molten pool cools and solidifies After that, the connection between the materials is formed. If the workpiece is too close to the loading plate, the molten pool will drop on the loading plate, and the workpiece will adhere to the loading plate, which will seriously affect the welding quality and welding efficiency.

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