Manufacturing method for integrating brake treadle arm and stay pipe

Abstract

The invention discloses a manufacturing method for connecting a brake pedal arm and a supporting tube into a whole, which comprises the following steps: a. a punching die is manufactured, and a connecting hole of the brake pedal arm is punched; b. a cold heading die is manufactured, is arranged and adjusted on a punch press; c. the brake pedal arm and the supporting tube are arranged on a lower die, and the lower end of the supporting tube is sleeved on a lower die core mechanism of the lower die; d. a filling part made of plastic materials is placed into the supporting tube from the upper end of the supporting tube; and e. the punch press is started. With the production method for connecting the brake pedal arm and the supporting tube into a whole, the firm connection of the brake pedal arm and the supporting tube is realized by adopting a tooling mould, which avoids unstable factors of batch production caused by a welding mode; when a brake pedal assembly of a vehicle works, a brakereturn spring is not rubbed again, which can ensure that the brake pedal assembly is safe and reliable in the authorized service life. The production method has steady quality of batch production, can reduce workload, and improve production efficiency.

Description

technical field [0001] The invention relates to a vehicle brake pedal assembly, in particular to a manufacturing method for integrally connecting a brake pedal arm and a support pipe. Background technique [0002] At present, the structure of the brake pedal arm and the support tube of the vehicle brake pedal assembly adopts welding to fix the pedal arm and the support tube. As an important part of the vehicle brake system, the pedal assembly should meet the reliability requirements, so it must be guaranteed The strength of the brake pedal arm, if the welding part breaks, it may cause a major car accident, and the commonly used welding method has unstable factors in mass production, and all workpieces whose welding strength does not meet the requirements must be detected. It takes a lot of manpower and material resources; the outer circle of the support tube is covered with a brake return spring. When there are many welding spots and welding slag left on the surface of the w...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of the brake pedal arm and the support tube of the vehicle brake pedal assembly adopts welding to fix the pedal arm and the support tube. As an important part of the vehicle brake system, the pedal assembly should meet the reliability requirements, so it must be guaranteed The strength of the brake pedal arm, if the welding part breaks, it may cause a major car accident, and the commonly used welding method has unstable factors in mass production, and all workpieces whose welding strength does not meet the requirements must be detected. It takes a lot of manpower and material resources; the outer circle of the support tube is covered with a brake return spring. When there are many welding spots and welding slag left on the surface of the welded body, when the vehicle brake pedal assembly is working, it will continue to contact with the brake return spring. friction, noise, and the brake return spring will eventually be worn out, which not only reduces the service life, but also causes serious consequences

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