Structure of an automatic positioning system for truck beam forming dies

Abstract

The invention discloses an automatic positioning system structure of a truck girder moulding mould. An upper mould and a lower mould are respectively positioned and mounted on a mould frame through amounting and positioning system on the mould frame; non-standard quick positioning pins for the mould frame and non-standard quick positioning symbol blocks for the mould frame are arranged on the mould frame, and are matched with positioning holes and positioning pins on a worktable of a press; accurate upper mould guiding assemblies are transversely arranged inside the upper mould; a plurality of positioning plate assemblies capable of lifting in a reciprocating manner are correspondingly arranged inside the lower mould; end socket switching length positioning plates are positioned at end sockets of the two ends of the lower mould; the reciprocating positioning plate assemblies can achieve floating positioning; in addition, positioning among the upper mould, the lower mould, the mould frame and the worktable is reliable.

Description

technical field [0001] The invention relates to a structure of an automatic positioning system for a truck frame forming mold. Background technique [0002] According to the shape characteristics of the truck frame, there are two typical processing techniques in the industry: [0003] 1) Roll forming: Uncoiling and leveling the coil material, cutting the strip vertically and horizontally--(surface treatment)--cold roll forming--drilling (punching) holes. This process is relatively simple and efficient, but it can only be applied to U-shaped straight beams with simple shapes, and cannot process longitudinal beams with variable cross-sections. This method is used for the longitudinal beams of "European and American" commercial vehicles and some heavy-duty vehicles of China National Heavy Duty Truck, Qingqi Automobile and Second Automobile. [0004] 2) Molding: Straight longitudinal beams are more difficult for cab layout, engine and transmission system layout. Variable cros...

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Problems solved by technology

[0004] 2) Compression molding: Straight longitudinal beams are more difficult for cab layout, engine and transmission system layout

However, the method of manually loading and unloading sheets has disadvantages such as poor quality consistency of parts, high labor intensity, low production efficiency, and low safety level, which need to be improved

[0006] Under the existing technical conditions, it is difficult to realize automatic loading and unloading of the beam forming mold with manual loading and unloading

There are several important reasons: 1) The camber of the girder sheet itself is relatively large, and the length or width dimensions are out of tolerance, which may easily lead to inaccurate feeding. 2) During automatic mold production, the repeat positioning accuracy of the relative position between the mold and the robot is very high; 3) When the robot is loading and unloading, the end picker enters and exits the mold cavity, which requires a larger net space for the machine tool opening

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