Metal injection molding MIM ignition control lock component parts

Patent name: A manufacturing method for controlling the telescopic structure of the ignition switch bolt
Technical field:
The invention relates to an ignition switch structure, in particular to a telescopic structure for controlling an ignition switch bolt.
Background technique:
The automobile ignition switch includes a lock core part and a transmission part connected with the lock core part. The transmission part is usually provided with a locking mechanism that cooperates with the steering column to control the locking of the steering column. When the car's flameout key is pulled out, the ignition switch locks the steering wheel, so that the car will not deflection and slip, ensuring the safety of parking. For example, Chinese Patent Application No. 201120323779. 2 discloses an ignition switch assembly, including a housing, and a lock core mechanism, a transmission mechanism, an ignition trigger mechanism, and a bolt mechanism installed on the housing, the bolt mechanism includes There is a lock column, and the drive pipe string is also provided with a rotating groove arranged circumferentially around the drive pipe string. The rotating groove includes a deadlock end and an unlocked end. The depth of the groove bottom of the deadlock end is smaller than that of the unlocked end. The lock column is It is inserted into the rotating slot with radial limit and axial sliding movement. One end of the lock cylinder is in contact with the bottom of the slot, and the other end is set toward the outer steering wheel. When the lock cylinder mechanism is in the locked state, the lock of the rotating slot The dead end rotates to the position of the lock cylinder and conflicts with the lock cylinder, thereby forming the extension of the lock cylinder along its own axis. When the lock cylinder mechanism is in the unlocked state, the unlocking end of the rotating groove rotates to the position where the lock cylinder is and is The lock cylinders collide, thus forming the contraction of the lock cylinder along its own axis. When the lock core mechanism is in the locked state, the extension of the lock cylinder constitutes the lock of the steering wheel. However, there is a movable gap between the transmission column and the lock column of this structure when the ignition key is in the driving gear. When the steering wheel shakes, the lock column will hit abnormal noise and cause wear and tear between parts, reducing the service life of the ignition switch and customers Satisfaction with the vehicle.