KR-20260062627-A - Method for manufacturing pad springs for automobile disc brake

Abstract

The present invention relates to a method for manufacturing a pad spring for an automobile disc brake, wherein the pad spring (100) for an automobile disc brake resiliently supports a friction pad positioned oppositely with a disc rotor sandwiched between them within a caliper, wherein the pad spring (100) is manufactured sequentially in a press machine equipped with a sequential transfer die when the brake is released, and the finished product is manufactured in a bundled state combined with a steel plate. The present invention is manufactured by sequentially processing the shape through a press process, and after the press process is completed, multiple finished products can be stored bundled together, which has the significant effect of being convenient for transportation and convenient for the next process.

Inventors

• 최외식

Assignees

• 창운금속주식회사

Dates

Publication Date

20260507

Application Date

20241029

Claims (3)

1. A method for manufacturing a pad spring for an automobile disc brake, wherein the pad spring (100) elastically supports a friction pad positioned oppositely with a disc rotor sandwiched between them within a caliper, wherein the pad spring (100) is manufactured sequentially in a press machine equipped with a sequential transfer die when the brake is released, and the finished product is manufactured in a bundled state combined with a steel plate.
2. In paragraph 1, A method for manufacturing a pad spring for an automobile disc brake, characterized in that, during the forming process of the pad spring (100), a first guide portion (1), which is a reference surface, is formed in the shape of a plate, a first bend portion (2) is formed on the right side of the first guide portion (1), a second guide portion (3) is formed on the right side of the first bend portion (2), a second bend portion (4) is formed on the right side of the second guide portion (3), a third guide portion (5) is formed on the right side of the second bend portion (4), a third bend portion (6) is formed on the right side of the third guide portion (5), a fourth guide portion (7) is formed on the right side of the third bend portion (6), and a fourth bend portion (8) is formed on the right side of the fourth guide portion (7).
3. In paragraph 2, A method for manufacturing a pad spring for an automobile disc brake, characterized in that a second auxiliary guide part (3-1) is formed between the second guide parts (3) above.

Description

Method for manufacturing pad springs for automobile disc brake The present invention relates to a method for manufacturing a pad spring for an automobile disc brake, and more specifically, to a pad spring for an automobile disc brake that is manufactured by sequentially processing its shape through a press process, and which allows for convenient transportation and convenient subsequent processes by enabling multiple finished products to be stored together after the press process is completed. Brakes installed on vehicles are devices designed to decelerate, stop, or maintain a stationary state while a vehicle is in motion, and include drum brakes and disc brakes. And the disc brake is equipped with a pad spring (spring pad) that elastically supports the friction pads positioned opposite each other by sandwiching the disc rotor between them within the caliper. These pad springs are an important element for positioning the pad and separating it from the rotor. In the prior art, Korean Patent Publication No. 2013-0003932 discloses a spring pad installed between the two pads and the carrier, comprising a caliper brake having two pads each positioned at the front and rear of a disc that rotates together with a wheel of a vehicle and having support protrusions formed thereon, and a carrier having a support groove formed thereon for mounting the support protrusions. The spring pad includes a guide portion engaged with the support groove, and an elastic member for pad restoration that protrudes from one side of the guide portion and extends toward the disc, and is spaced apart from the inner surface of the guide portion as it extends toward the disc. Another prior art disclosed in Korean Patent Publication No. 2013-0095449 is a spring pad installed between the two pads and the carrier to support the two pads, comprising: two pads each positioned at the front and rear of a disc that rotates together with a wheel of a vehicle and having support protrusions formed thereon; and a carrier having a support groove formed thereon for mounting the support protrusions. The spring pad includes a guide portion inserted into the support groove; a first connecting portion bent downward and extending from the lower end of the guide portion; a second connecting portion bent upward and extending from the upper end of the guide portion; and an elastic member for pad restoration that protrudes from the inner side of the first connecting portion adjacent to the disc and extends toward the second connecting portion, and bends toward the outer direction of the first connecting portion as it extends toward the second connecting portion to support the pad. However, conventional technologies had the disadvantage that finished products were manufactured individually, making transportation difficult, and the subsequent painting process took a long time. FIG. 1 is a drawing of the notching portion of the method for manufacturing a pad spring of a disc brake for an automobile according to the present invention. FIG. 2 is a drawing of the bending part of the method for manufacturing a pad spring of an automobile disc brake according to the present invention. FIG. 3 is a drawing of can bending, notching, and V-cutting of the method for manufacturing a pad spring of an automobile disc brake according to the present invention. FIG. 4 is a drawing of the completed method for manufacturing a pad spring of an automobile disc brake according to the present invention. FIG. 5 is a drawing of the pad spring according to the method for manufacturing a pad spring of an automobile disc brake of the present invention. The present invention relates to a method for manufacturing a pad spring for a disc brake for an automobile, wherein the pad spring (100) for a disc brake for an automobile resiliently supports a friction pad positioned oppositely by interposing a disc rotor within a caliper, wherein the pad spring (100) is manufactured sequentially in a press machine equipped with a sequential transfer die when the brake is released, and the finished product is manufactured in a bundled state combined with a steel plate. In addition, during the molding process of the pad spring (100), the first guide portion (1), which is a reference surface, is formed in the shape of a plate, and the right side of the first guide portion (1) has a first bend portion (2) formed, the right side of the first bend portion (2) has a second guide portion (3) formed, the right side of the second guide portion (3) has a second bend portion (4) formed, the right side of the second bend portion (4) has a third guide portion (5) formed, the right side of the third guide portion (5) has a third bend portion (6) formed, the right side of the third bend portion (6) has a fourth guide portion (7) formed, and the right side of the fourth guide portion (7) has a fourth bend portion (8) formed. In addition, a second auxiliary guide part (3-1) is formed between the second guide parts (3). The p