Drum brake pad clamping mechanism

Abstract

The utility model relates to the technical field of brake pad production, in particular to a drum type brake pad clamping mechanism which comprises a clamping base, an adjusting servo air cylinder, a clamping support, a clamping plate, a clamping air cylinder and a thrust steering piece. The adjusting servo air cylinder is installed on the clamping base and used for driving the clamping support to slide so as to be matched with drum brake pads of different lengths, the clamping support is vertically installed in the clamping support in a sliding mode, and the clamping air cylinder is installed on the clamping support and drives the thrust steering part to horizontally slide in the first direction. The adjusting servo air cylinder is started, the original position of the clamping plate in the horizontal direction can be changed, then the clamping air cylinder is started, the clamping plate can be ejected upwards from the bottom through the thrust steering piece, the jacked clamping plate is matched with an externally-fixed vertical face to clamp the drum type brake pad, and then the drum type brake pads of different lengths can be clamped in a matched mode.

Description

Technical Field

[0001] The present application relates to the technical field of brake pad production, and particularly relates to a clamping mechanism for drum brake pads. Background Art

[0002] Automobile brake pads, also known as automotive brake linings, refer to the friction materials fixed on the brake drums or brake discs that rotate with the wheels. The friction linings and friction blocks therein bear external pressures and generate frictional forces to achieve the purpose of vehicle deceleration. During the manufacturing process of drum brake pads, it is necessary to grind their side edges and inner arc surfaces.

[0003] After retrieval, Chinese Patent with application number 202110905599.3 discloses a drum brake pad grinding device, including a frame, a workpiece conveying station, a loading rack, a pushing seat, and a pushing driving mechanism. The workpiece conveying station includes two supporting plates, and a gap is formed between the two supporting plates. The drum brake pads separated from the loading rack are first pressed by the feeding pressure wheels and conveyed forward, and after being ground on both sides by the grinding motor, they are then ground on the inner arc surface.

[0004] Regarding the above related technologies, the inventor believes that there are the following technical defects to be improved:

[0005] For the drum brake pads in the loading rack, they can only be accurately ground by the grinding motor after being conveyed to a suitable processing station. However, when common brake pad grinding devices produce drum brake pads of different lengths, it is very difficult to fix the drum brake pads to a suitable position, resulting in poor grinding effects and low grinding efficiency. Utility Model Content

[0006] The present application provides a clamping mechanism for drum brake pads to improve the following technical problems:

[0007] When common brake pad grinding devices produce drum brake pads of different lengths, it is very difficult to fix the drum brake pads to a suitable position, resulting in poor grinding effects and low grinding efficiency.

[0008] The present application provides a clamping mechanism for drum brake pads, adopting the following technical solutions:

[0009] A drum brake pad clamping mechanism includes a clamping seat, an adjusting servo cylinder, a clamping bracket, a clamping plate, a clamping cylinder, and a thrust steering member. The clamping bracket is horizontally slidably assembled on the clamping seat in a first direction. The adjusting servo cylinder is installed on the clamping seat and is used to drive the clamping bracket to slide to adapt to drum brake pads of different lengths. The clamping plate is vertically slidably installed in the clamping bracket. The clamping cylinder is installed on the clamping bracket and drives the thrust steering member to horizontally slide in the first direction. The clamping cylinder and the adjusting servo cylinder are respectively located at opposite ends of the clamping seat. When the thrust steering member slides towards the adjusting servo cylinder, the clamping plate is lifted, and the lifted clamping plate cooperates with an externally fixed vertical surface to clamp the drum brake pad.

[0010] In an implementable technical solution of the present application, the thrust steering member includes a steering plate, a steering wheel, and a steering shaft. The bottom of the clamping plate is provided with a U-shaped clamping seat with an opening facing downwards. The steering wheel is rotatably assembled in the U-shaped clamping seat through the steering shaft. The steering shaft penetrates through the steering wheel. The steering plate is provided with an inclined chute. A part of the steering plate is inserted into the U-shaped clamping seat. The steering wheel freely slides in the inclined chute. The steering shaft is horizontally arranged and arranged in a second direction, and the second direction is perpendicular to the first direction.

[0011] In an implementable technical solution of the present application, the inclination angle of the inclined chute is between 40 - 50 degrees, and circular holes adapted to the steering wheel are provided at both the top and the bottom of the inclined chute.

[0012] In an implementable technical solution of the present application, a rotating connection seat is fixed to the end of the telescopic rod of the clamping cylinder. A connection notch is provided at the side end of the steering plate. A part of the rotating connection seat is rotatably assembled in the connection notch, and the rotation axis of the rotating connection seat is arranged in the first direction.

[0013] In an implementable technical solution of the present application, the clamping bracket is a square frame structure. Windows are provided on opposite sides of the square frame structure for observing and maintaining the rotating connection seat and the steering plate.

[0014] In an implementable technical solution of the present application, a concave arc surface is provided at the top of the clamping plate, and the concave arc surface is used to adapt to the lower surface of the drum brake pad.

[0015] In an implementable technical solution of the present application, a sliding outer frame is provided on the clamping seat. A sliding square block is arranged inside the sliding outer frame, and the sliding square block is fixedly connected to the clamping bracket.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] By adjusting the design of the servo cylinder, the corresponding driving distance can be preset in advance according to the length of the corresponding drum brake pads. Starting the clamping cylinder can push the clamping plate upward from the bottom through the thrust steering part. Then, starting the adjusting servo cylinder can change the original position of the clamping plate in the horizontal direction to achieve the clamping effect. The lifted clamping plate cooperates with an externally fixed vertical surface to clamp the drum brake pads, so as to adapt to clamping drum brake pads of different lengths, facilitating the precise grinding of the drum brake pads by the grinding motor, and indirectly improving the grinding effect and efficiency. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the drum brake pad clamping mechanism according to the embodiment of the present application.

[0020] Figure 2 It is an exploded structural diagram of the drum brake pad clamping mechanism according to the embodiment of the present application.

[0021] Description of the Reference Numerals in the Drawings:

[0022] 1. Clamping seat;

[0023] 2. Adjusting servo cylinder;

[0024] 3. Clamping bracket;

[0025] 4. Clamping plate; 41. U-shaped clamping seat; 42. Concave arc surface;

[0026] 5. Clamping cylinder; 51. Rotating connection seat;

[0027] 6. Thrust steering part; 61. Steering plate; 611. Inclined chute; 612. Circular hole; 613. Connection notch; 62. Steering wheel; 63. Steering shaft;

[0028] 7. Sliding outer frame;

[0029] 8. Sliding block. Detailed Embodiment

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the following further details the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0034] The following will further elaborate on the present application in conjunction with the attached Figure 1-2 for a more detailed description.

[0035] The embodiment of the present application discloses a drum brake pad clamping mechanism. Referring to Figure 1 and Figure 2 , the drum brake pad clamping mechanism includes a clamping seat 1, an adjusting servo cylinder 2, a clamping bracket 3, a clamping plate 4, a clamping cylinder 5 and a thrust deflecting member 6. The clamping bracket 3 is horizontally slidably assembled on the clamping seat 1 along a first direction. The adjusting servo cylinder 2 is installed on the clamping seat 1 and is used to drive the clamping bracket 3 to slide to adapt to drum brake pads of different lengths. The clamping cylinder 5 is vertically slidably installed in the clamping bracket 3. The clamping cylinder 5 is installed on the clamping bracket 3 and drives the thrust deflecting member 6 to horizontally slide along the first direction. The clamping cylinder 5 and the adjusting servo cylinder 2 are respectively located at opposite ends of the clamping seat 1. When the thrust deflecting member 6 slides towards the adjusting servo cylinder 2, the clamping plate 4 is lifted, and the lifted clamping plate 4 cooperates with an externally fixed vertical surface to clamp the drum brake pad.

[0036] The beneficial technical effects of the drum brake pad clamping mechanism of the embodiment of the present application are roughly as follows:

[0037] By adjusting the design of the servo cylinder 2, the corresponding driving distance can be preset in advance according to the length of the corresponding drum brake pad. When the clamping cylinder 5 is started, the clamping plate 4 can be pushed upward from the bottom through the thrust steering member 6. Then, when the adjusting servo cylinder 2 is started, the original position of the clamping plate 4 in the horizontal direction can be changed to achieve the clamping effect. The lifted clamping plate 4 cooperates with an externally fixed vertical surface to clamp the drum brake pad, so that drum brake pads of different lengths can be adapted and clamped, which facilitates the precise grinding of the drum brake pad by the grinding motor, and indirectly improves the grinding effect and efficiency.

[0038] In this embodiment, the thrust steering member 6 includes a steering plate 61, a steering wheel 62 and a steering shaft 63. A U-shaped seat 41 with an opening facing downward is provided at the bottom of the clamping plate 4. The steering wheel 62 is rotatably assembled in the U-shaped seat 41 through the steering shaft 63. The steering shaft 63 penetrates through the steering wheel 62. An inclined chute 611 is provided on the steering plate 61. A part of the steering plate 61 is inserted into the U-shaped seat 41. The steering wheel 62 slides freely in the inclined chute 611. The steering shaft 63 is horizontally arranged and arranged along the second direction, and the second direction is perpendicular to the first direction. The inclination angle of the inclined chute 611 is between 40-50 degrees (preferably 45 degrees), and circular holes 612 adapted to the steering wheel 62 are provided at both the top and the bottom of the inclined chute 611.

[0039] The above-designed thrust steering member 6 has a simple structure and is convenient to assemble, and can stably convert the horizontal movement of the steering plate 61 into the lifting movement of the clamping plate 4.

[0040] In order to facilitate the firm and flexible connection between the telescopic rod of the clamping cylinder 5 and the steering plate 61, a rotating connection seat 51 is fixed at the end of the telescopic rod of the clamping cylinder 5. A connection notch 613 is provided at the side end of the steering plate 61. A part of the rotating connection seat 51 is rotatably assembled in the connection notch 613 to achieve the "soft" connection and fixed connection between the two, and the rotation axis of the rotating connection seat 51 is arranged along the first direction.

[0041] Moreover, in order to facilitate maintenance and improve the subsequent connection wear problem, the clamping bracket 3 is of a square frame structure, and windows are provided on the opposite sides of the square frame structure for observing and maintaining the rotating connection seat 51 and the steering plate 61.

[0042] A concave arc surface 42 is provided at the top of the clamping plate 4, and the concave arc surface 42 is used to adapt to the lower surface of the drum brake pad. When the clamping plate 4 is at the lowest position, the concave arc surface 42 can fit better with the drum brake pad, and the supporting effect on the drum brake pad is better. After the adjusting servo cylinder 2 is started, the clamping plate 4 can slide along the bottom of the drum brake pad (until the clamping plate 4 disengages from the lower surface of the drum brake pad and then the lifting action of the clamping plate 4 is started), and the operation is more stable.

[0043] To facilitate the horizontal and stable sliding of the clamping bracket 3 together with the clamping plate 4, the clamping cylinder 5 and the thrust deflecting member 6, a sliding outer frame 7 is provided on the clamping seat 1, a sliding square block 8 is arranged inside the sliding outer frame 7, and the sliding square block 8 is fixedly connected to the clamping bracket 3.

[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the application shall be included within the protection scope of the present application.

Claims

1. A drum brake pad clamping mechanism, characterized in that: The invention comprises a clamping seat (1), an adjusting servo cylinder (2), a clamping bracket (3), a clamping plate (4), a clamping cylinder (5) and a thrust steering member (6), wherein the clamping bracket (3) is assembled on the clamping seat (1) in a horizontally sliding manner along a first direction, the adjusting servo cylinder (2) is mounted on the clamping seat (1) and is used to drive the clamping bracket (3) to slide so as to adapt to drum brake pads of different lengths, and the clamping bracket (3) is assembled on the clamping bracket (1) in a vertically sliding manner. 3), the clamping cylinder (5) is installed on the clamping bracket (3) and drives the thrust steering member (6) to slide horizontally along the first direction, the clamping cylinder (5) and the adjusting servo cylinder (2) are respectively located at the opposite ends of the clamping seat (1), when the thrust steering member (6) slides toward the adjusting servo cylinder (2), the clamping plate (4) is lifted up, and the lifted clamping plate (4) cooperates with an externally fixed vertical surface to clamp the drum brake pad.

2. The drum brake pad clamping mechanism according to claim 1, characterized in that: The thrust steering member (6) comprises a steering plate (61), a steering wheel (62) and a steering shaft (63); a U-shaped card seat (41) with an opening facing downward is provided at the bottom of the clamping plate (4); the steering wheel (62) is rotatably assembled in the U-shaped card seat (41) through the steering shaft (63); the steering shaft (63) passes through the steering wheel (62); an inclined slide groove (611) is provided on the steering plate (61); a part of the steering plate (61) is inserted into the U-shaped card seat (41); the steering wheel (62) slides freely in the inclined slide groove (611); the steering shaft (63) is arranged horizontally and along a second direction, and the second direction is perpendicular to the first direction.

3. The drum brake pad clamping mechanism according to claim 2, characterized in that: The inclined slide groove (611) has an inclination angle between 40 and 50 degrees, and the top and bottom of the inclined slide groove (611) are both provided with circular holes (612) adapted to fit the steering wheel (62).

4. The drum brake pad clamping mechanism according to claim 2, characterized in that: A rotating connection seat (51) is fixed to the end of the telescopic rod of the clamping cylinder (5), a connecting notch (613) is provided at the side end of the steering plate (61), a local rotation of the rotating connection seat (51) is assembled in the connecting notch (613), and the rotating axis of the rotating connection seat (51) is arranged along the first direction.

5. The drum brake pad clamping mechanism according to claim 4, characterized in that: The clamping bracket (3) is a square frame structure, and windows are arranged on two opposite sides of the square frame structure. The windows are used to observe and maintain the rotating connection seat (51) and the steering plate (61).

6. The drum brake pad clamping mechanism according to claim 1, characterized in that: The top of the clamping plate (4) is provided with a concave arc surface (42), and the concave arc surface (42) is used to adapt to the lower surface of the drum brake pad.

7. The drum brake pad clamping mechanism according to claim 1, characterized in that: The clamping seat (1) is provided with a sliding outer frame (7), a sliding block (8) is provided inside the sliding outer frame (7), and the sliding block (8) is fixedly connected to the clamping bracket (3).

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