WO2019201164A1

WO2019201164A1 - Machining method for interlocking support system of steel backing of disc brake pad

Info

Publication number: WO2019201164A1
Application number: PCT/CN2019/082411
Authority: WO
Inventors: 陈佰权
Original assignee: 珠海全备汽车零部件有限公司
Priority date: 2018-04-17
Filing date: 2019-04-12
Publication date: 2019-10-24
Also published as: CN108708924A

Abstract

A machining method for an interlocking support system of steel backings of disk brake pads, comprising: fixing a steel backing on a clamp; using a punch to cut into the surface of the steel backing to form hooks; performing sandblasting treatment and anti-rust galvanization treatment on the surface of the steel backing; welding a friction material to the surface of the steel backing and inside the notches between the surface of the steel backing and the hooks, covering the hooks; cooling to form a brake pad.

Description

Method for processing steel back interlocking mutual holding system of disc brake pad

Technical field

The invention relates to the technical field of automobile brakes, and in particular to a method for processing brake pads.

Background technique

The brake pad refers to a friction member fixed on the brake disc of the wheel. The friction lining and the friction pad are subjected to external pressure, and the friction and the braking torque are generated to achieve the purpose of deceleration of the vehicle. The most critical safety component in the brake system. The traditional production process is made by bonding the steel back and the friction material in the brake pad by chemical adhesive. The brake pad under the production and processing method is susceptible to defects caused by the process, material, weather, etc. The pasting surface is not enough to fit and shift. Due to the influence of external environment such as temperature and humidity, especially in extreme weather, the brake pad is prone to breakage, slippage or even separation of the steel back and the friction material during use. Because the traditional processing method requires the addition of flammable chemical adhesives, it not only makes the products have certain pollution and danger during production, transportation, storage and use, but also leads to personnel, equipment and time. The investment is too high and the production cost is increased.

Summary of the invention

In order to overcome the above deficiencies of the prior art, the present invention provides a method for processing a steel back interlocking and holding system of a disc brake pad, which replaces the chemical bonding by a physical mechanical connection, which is safer, more reliable and durable. And the production cost is lower and the production efficiency is higher.

The technical solution adopted by the present invention to solve the technical problems thereof is as follows:

A method for processing a steel back interlocking mutual holding system of a disc brake pad, comprising the following steps:

Step 1: Fix the steel back on the fixture;

Step 2: using a punch to cut into the steel back surface with a certain pressure and inclination, cut and produce a plurality of left and right and front and rear symmetrical blade edges, and a slit groove is formed between the blade edge and the steel back;

Step 3: sandblasting on the steel back surface;

Step 4, further galvanizing anti-rust treatment on the steel back surface;

Step 5: The friction material is heated and pressurized on the molding machine and synthesized, and then melted into the steel back surface and the slit groove to cover the blade edge;

Step 6. Cool and form a brake pad.

As an improvement of the above technical solution, the blade has a kurtosis of 1 to 3 mm and an angle of 6 to 10 degrees with the steel back surface.

As an improvement of the above technical solution, the two blades with the left and right symmetry are inclined toward each other, and the two blades that are symmetrical at the front and the back are inclined toward each other.

As an improvement of the above technical solution, the clamp is provided with a slot. In the first step, the steel back is placed into the slot via the pneumatic clamp, and the steel back is synchronously pressed back and forth through the positioning column, so that the steel back is positioned in the slot of the clamp. in.

As an improvement of the above technical solution, in the second step, the punch is cut into the steel back surface at a pressure of 75 tons per square centimeter.

The beneficial effects of the invention are:

The processing method does not require a chemical adhesive for bonding, and is directly cut into the steel back surface by a punch to process the blade, and the friction material and the bottom portion are embedded in the blade when the brake pad is formed in a perfect balance with symmetry. Integrated into an interlocking and holding system, this treatment does not require painting or other coatings, which not only eliminates environmental pollution from the source, but also reduces production costs and improves production efficiency. Moreover, since the steel back is completely fitted with the friction material, the steel back and the friction material can be prevented from being broken, slipped or even separated, and the probability of deflection and displacement is effectively reduced, and the safety and reliability of the brake pad are remarkably improved.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, wherein:

1 is a plan view showing a blade edge after cutting a blade on a back surface of the embodiment of the present invention;

Figure 2 is a cross-sectional view of the steel back surface after cutting the blade edge in the embodiment of the present invention;

Figure 3 is a partial enlarged view of a portion A in Figure 2;

Figure 4 is a cross-sectional view showing the brake pad after molding in the embodiment of the present invention;

Figure 5 is a partial enlarged view of B in Figure 4.

detailed description

Referring to FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5, a method for processing a steel back interlocking and holding system of a disc brake pad of the present invention comprises the following steps:

Step 1: Fix the steel back 1 on the fixture;

Step 2: using a punch to cut into the surface of the steel back 1 with a certain pressure and inclination, cut and produce a plurality of left and right symmetrical blade 2, and a slit groove 3 is formed between the blade 2 and the steel back 1;

Step 3: sandblasting on the steel back surface;

Step 4, further galvanizing anti-rust treatment on the steel back surface;

Step 5, the friction material 4 is heated and pressurized on the molding machine and synthesized, and then melted into the surface of the steel back 1 and the slit groove 3 and cover the blade 2;

Step 6. Cool and form a brake pad.

Wherein, the blade 2 has a kurtosis of 1 to 3 mm and an angle of 6 to 10° with the surface of the steel back 1 . In this embodiment, the kurtosis of the blade 2 is 2 mm, and the surface of the steel back 1 The angle is 8°. The two symmetrical two blades 2 are inclined at opposite directions, and the two flank two blades are inclined at opposite directions, and are distributed on the steel back 1 in a perfectly balanced manner with symmetry, and the friction material 4 and the bottom portion are fitted into the blade portion. One body forms an interlocking and holding system.

In addition, the clamp is provided with a slot. In the first step, the steel back is placed into the slot via the pneumatic clamp of the CNC, and the positioning post is pressed by the hydraulic motor from the left and right sides to press the steel back, so that the steel back is positioned in the slot of the clamp. in.

Specifically, in step two, the punch is cut into the steel back surface at a pressure of 75 tons per square centimeter. In step 5, the friction material is synthesized on the molding machine, and is directly heated and pressed without any chemical binder. The friction material is 150-165 ° C and 200-300 Kgf / The high temperature and high pressure state is melted into the steel back surface and the notch groove and covers the blade edge. The friction material cools to form a friction plate, which enhances the cohesive force of the blade and is safe to use, which not only eliminates environmental pollution from the source, but also reduces the pollution. Production costs increase production efficiency. Moreover, since the steel back is completely fitted with the friction material, the steel back and the friction material can be prevented from being broken, slipped or even separated, and the probability of deflection and displacement is effectively reduced, and the safety and reliability of the brake pad are remarkably improved.

The above is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and as long as it achieves the technical effects of the present invention by any identical or similar means, it should fall within the protection scope of the present invention.

Claims

A method for processing a steel back interlocking mutual holding system for a disc brake pad, comprising the steps of:

Step 1: Fix the steel back on the fixture;

Step 2: using a punch to cut into the steel back surface with a certain pressure and inclination, cut and produce a plurality of left and right and front and rear symmetrical blade edges, and a slit groove is formed between the blade edge and the steel back;

Step 3: sandblasting on the steel back surface;

Step 4, further galvanizing anti-rust treatment on the steel back surface;

Step 5: The friction material is heated and pressurized on the molding machine and synthesized, and then melted into the steel back surface and the slit groove to cover the blade edge;

Step 6. Cool and form a brake pad.
The method for processing a steel back interlocking mutual holding system of a disc brake pad according to claim 1, wherein the blade has a kurtosis of 1 to 3 mm and an angle between the steel back surface and the steel back surface. It is 6~10°.
The method for processing a steel back interlocking and holding system of a disc brake pad according to claim 2, wherein the two blades are symmetrically disposed at opposite sides, and the two blades are symmetrically inclined.
The method for processing a steel back interlocking and holding system of a disc brake pad according to claim 1, wherein the clamp is provided with a slot, and in the first step, the steel back is inserted through the pneumatic clamp. In the groove, the steel back is synchronously pressed back and forth by the positioning column, so that the steel back is positioned in the slot of the clamp.
A method of processing a steel back interlocking mutual holding system for a disc brake pad according to claim 1, wherein in the second step, the punch is cut into the steel back surface at a pressure of 75 tons per square centimeter.