Driving assembly for parking braking calipers and manufacturing method for manufacturing driving assembly

Abstract

The invention discloses a driving assembly for parking braking calipers. The driving assembly comprises a piston and further comprises threaded rods and nut sleeves, wherein the threaded rods are used for being connected with a motor, and the nut sleeves are in threaded connection with the threaded rods. The motor drives the threaded rods to rotate. The threaded rods drive the nut sleeves to be displaced during rotating. The nut sleeves push the piston to make contact with a braking pad in a jacking mode during being displaced. A limiting structure for preventing thread engagement is arranged between each threaded rod and the corresponding nut sleeve and comprises a circular truncated cone arranged on the threaded rod and a limiting protrusion arranged on the end surface of the circular truncated cone. The end surface of each nut sleeve is provided with a limiting notch abutting against the corresponding limiting protrusion. The problems that existing parking braking calipers are unstable in braking force and prone to being self-locked are solved. The invention further discloses a manufacturing method for manufacturing the driving assembly. Mass production can be ensured, and meanwhile, the matching precision of the limiting protrusions and the limiting notches is ensured, so that the matching and interchangeable effect between each nut sleeve and the corresponding threaded rod is achieved, the production efficiency is high, the production cost is low, and the product market competitiveness is improved.

Description

【Technical field】 [0001] The invention relates to a driving assembly of a parking brake caliper and a manufacturing method for the driving assembly, belonging to the field of automobile braking equipment. 【Background technique】 [0002] With the rapid development of modern automobiles, automatic parking technology has been more and more used in the automotive field. Automatic parking technology includes brake calipers. There is a drive component inside the brake caliper. The drive component is connected to a motor. Connect the sensor and sense the signal through the sensor to drive the motor to rotate. When the motor rotates, it drives the drive assembly inside the brake caliper, and finally drives the brake pads on the brake caliper to hold the brake disc tightly. The problem with the current technology is that the drive assembly The stability is not high, and even prone to self-locking phenomenon, resulting in unstable braking force. 【Content of invention】 [0003] The ...

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Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a driving assembly of a parking brake caliper and a manufacturing method for the driving assembly, which solves the problems of unstable braking force and easy self-locking of the existing parking brake caliper, and utilizes The manufacturing method in the present invention can produce the drive assembly in large quantities, and after mass production, it can ensure the effect of universal cooperation between the drive assembly parts, the production cost is low, and the market competitiveness of the product is improved.

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