Spoke air hole machining die

Abstract

The invention belongs to the technical field of punching machining and particularly discloses a spoke air hole machining die. The spoke air hole machining die comprises an upper die and a lower die. The upper die comprises an upper die plate, a transmission rod and a punch. Pawls are hinged to the transmission rod. The lower die comprises a lower die plate, a rack, a rotating shaft and a punching block. The rotating shaft is rotationally connected to the rack, and the rotating shaft is in interference fit with the rack. A positioning plate and a ratchet wheel are fixed to the rotating shaft. A through hole matched with a spoke bolt hole is formed in the positioning plate. A cavity and a sliding groove communicating with the cavity are formed in the upper portion of the punching block. A magnet protruding block is connected to the sliding groove in a sliding manner, a punching hole is formed in the magnet protruding block, and a coil located below the magnet protruding block is arranged in the punching block. A controller and a speed sensor are installed on the rack, and the speed sensor and the coil are electrically connected with the controller. The spoke air hole machining die is adopted for machining a spoke air hole, after hole punching is completed, a spoke can be driven to rotate, punching continuity is ensured, and in addition, friction between the spoke and the magnet protruding block in the spoke rotating process can be avoided.

Description

technical field [0001] The invention belongs to the technical field of stamping processing, in particular to a mold for processing spoke air holes. Background technique [0002] At present, the most widely used wheels on automobiles are steel wheels, which generally consist of two parts, the rim and the spokes, which are manufactured separately and then assembled and welded together. Among them: the geometric structure of the spoke is composed of the installation plane, the transition curve section and the direct section, and the middle hole and the bolt hole are processed on the installation plane, and the installation plane is fixed with the car hub by bolts; the straight section is welded together with the rim ; The transition curve section plays the role of connecting the installation plane and the straight section, and the transition curve section is processed with air holes. With the rapid development of the automobile industry, the product quality of the spokes has a...

AI Technical Summary

Problems solved by technology

[0004] Yet this patent also has the following problems: 1. In order to punch the air holes, the spokes are fixed on the inclined wheel disc, and then punched by the punch of the upper die. After punching, the spokes need to be rotated. During the rotation of the spokes, the inner walls of the spokes rub against the stamped bumps, which may easily cause scratches on the inner walls of the spokes

2. After one punching, the punch is reset, and then the wheel needs to be turned artificially. After the spokes are rotated through a certain angle, they are locked and positioned by the pawl, and then the punching is performed again, which is very troublesome. During this process, the punching machine cannot Continuous work greatly affects processing efficiency

Images