A welding positioning mechanism for stamped parts nuts that can guarantee concentricity

By designing a nut welding positioning mechanism that includes an upper positioning surface, a lower positioning surface, and a cylinder, the problem of low nut welding efficiency in the existing technology is solved, and the precise concentricity and coaxiality positioning of the nut hole is achieved, thereby improving production efficiency and product quality.

CN224273878UActive Publication Date: 2026-05-26SHANGHAI ZHONGLI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHONGLI AUTO PARTS CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-26

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Abstract

This utility model discloses a welding positioning mechanism for stamped parts nuts that ensures concentricity. It includes an upper positioning surface and a lower positioning surface for fixing the upper and lower parts of the workpiece. Coaxial connecting holes are provided on the upper and lower positioning surfaces. A clamping block is provided above the upper positioning surface, and the clamping block is connected to the output end of a cylinder through a clamping connecting block. The upper and lower positioning surfaces are respectively connected to an upper connecting plate and a lower connecting plate. One side of each of the upper and lower connecting plates is provided with L-block one and L-block two for adjusting the reference. This utility model has a reasonable structural design, low manufacturing cost, high production efficiency, and precise positioning. It can simultaneously meet the requirements of coaxiality and concentricity of mounting holes for parts. The produced products have fixed weld positions without quality defects such as incomplete welding, and no additional inspection procedures are required.
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