A positioning tool for brake pad pressure bonding silencer

Abstract

The utility model relates to the technical field of brake pad processing, in particular to a positioning tool for press-bonding a silencer to a brake pad, comprising: a base plate, mounted on a press workbench, for supporting a tool assembly to perform press-bonding operations on the silencer and the steel back of the brake pad; a tool assembly, for positioning the silencer and the steel back of the brake pad, so that the mounting hole of the steel back of the brake pad falls within the mounting hole of the silencer when projected along the axial direction, and for solving the technical problems of poor press-bonding quality and low press-bonding efficiency existing in the prior art for press-bonding silencers to brake pads.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pad processing, in particular to a positioning tool used for brake pad press-bonding silencer plates. Background Art

[0002] As an important safety component of the automobile brake system, the brake pad is generally provided with a steel back, and a silencer is pasted on the steel back. The main function of the silencer is to reduce noise. In the prior art, the installation method of the brake pad and the silencer is mainly press-bonding. With the upgrading and replacement of automobiles, the structure of the brake pad is also constantly improving. The Chinese utility model patent with the announcement number CN216241711U and the name of a quick-change positioning fixture for automobile brake pad press-bonding silencer is disclosed, which includes a common bottom plate, a quick-change plate and a universal upper plate. The quick-change plate is detachably mounted on the common bottom plate through a limiting device. The size of the quick-change plate is larger than that of the common bottom plate. The brake pad is mounted on the quick-change plate, and the steel back of the brake pad is downwardly in contact with the upper surface of the quick-change plate. The universal upper plate is located directly above the common bottom plate, which is used to solve the technical problems of the narrow application range of the positioning fixture for automobile brake pad press-bonding silencer in the prior art and the low production efficiency due to the replacement of brake pad varieties.

[0003] The above technology is mainly for brake pads without mounting holes. When bonding the silencer, it is only necessary to consider that the bonding error between the silencer and the brake pad is not too large. However, two mounting holes are added to the improved brake pad. The mounting holes are used for the positioning pins to pass through and then determine the matching position of the brake pad and the caliper. Because when the brake pad is installed with the silencer, a mounting hole consistent with the brake pad mounting hole needs to be reserved on the silencer for the positioning pins to pass through. If the mounting hole of the silencer is offset relative to the mounting hole of the brake pad, the silencer is easy to cover the mounting hole on the steel back of the brake pad. If the covering area is too large, the positioning pin cannot be fully assembled through the mounting hole. If the covering area is not large, but the mounting holes of the silencer and the steel back of the brake pad are not concentric, although it does not affect the installation, it will cause the positioning pin and the silencer to collide frequently, causing working noise. This situation is defined as a pressure bonding failure, and the workpiece needs to be scrapped or reworked, the production efficiency cannot be effectively improved, and the production cost cannot be fully controlled. Therefore, a positioning tooling for the brake pad pressure bonding silencer is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a positioning tool for brake pad press-bonding silencer, which is used to solve the technical problems of poor press-bonding quality and low press-bonding efficiency in the prior art for brake pad press-bonding silencer.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning tool for brake pad press-bonding silencer, comprising:

[0007] The bottom plate is installed on the press workbench and is used to support the tooling components to press the steel back of the silencer and brake pad to be pressed;

[0008] The tooling assembly is used to position the steel back of the silencer and the brake pad so that the mounting hole of the steel back of the brake pad falls into the mounting hole of the silencer when projected along the axial direction.

[0009] Furthermore, the tooling assembly includes:

[0010] A support portion, the support portion being mounted on the bottom plate;

[0011] The positioning part is installed on the supporting part, and positions the mounting hole of the silencer plate and the mounting hole of the steel back of the brake pad respectively, so that the mounting hole of the steel back of the brake pad is projected inside the mounting hole of the silencer plate.

[0012] Furthermore, the positioning portion is provided with a flange protruding from the main body, the size of the flange is smaller than the size of the silencer installation hole and larger than the size of the main body, and the size of the installation hole of the brake pad steel back is larger than the size of the positioning portion body and smaller than the size of the silencer installation hole.

[0013] Furthermore, the thickness h of the silencer plate is greater than the thickness H of the positioning portion flange.

[0014] Furthermore, the main body shape of the positioning part is inserted into and matched with the mounting hole of the steel back of the brake pad, and the steel back of the brake pad cannot rotate around the main body of the positioning part.

[0015] Furthermore, the outer peripheral surface of the main body of the positioning portion includes a first mating surface and a second mating surface, the first mating surface is set as a curved surface, and the second mating surface is set as a flat surface.

[0016] Furthermore, the support portion is movably mounted on the base plate and its position is fixed by a positioning portion.

[0017] Furthermore, a slide groove is provided on the bottom plate, a guide hole penetrating the bottom plate is provided in the slide groove, the support portion comprises a thick end and a thin end, the thick end is located in the slide groove, and the thin end passes through the guide hole and is installed with the matching hole of the positioning portion.

[0018] Furthermore, a slide groove is provided on the bottom plate, and a plurality of holes penetrating the bottom plate are provided in the slide groove. The support part includes a thick end and a thin end. The thick end is located in the slide groove, and the thin end passes through the hole and is installed with the matching hole of the positioning part.

[0019] Furthermore, there are two slide grooves with their opening directions facing each other, and a positioning platform is provided on one side of the bottom plate for installing the silencer, and the positioning platform is located at the center between the two slide grooves. The positioning platform matches the concave hole on the top of the silencer to quickly position the silencer.

[0020] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0021] (1) The utility model provides a tooling assembly for positioning the steel back of the silencer and the brake pad, so that the mounting hole of the steel back of the brake pad falls within the projection of the mounting hole of the silencer, thereby ensuring that the silencer pressed onto the steel back does not cover the mounting hole of the steel back, thereby avoiding the phenomenon of being unable to install or prone to noise after installation due to the silencer covering the mounting hole of the steel back, thereby ensuring the efficiency and quality of the pressing and bonding of the brake pad and the silencer;

[0022] (2) The utility model provides a tooling assembly consisting of a support part and a positioning part, positions the silencer through the flange of the positioning part, and positions the steel back through the body of the positioning part. At the same time, by setting the size relationship between the flange of the positioning part and the body, and the installation holes of the silencer and the steel back, it can effectively ensure that the silencer will definitely not cover the installation holes of the steel back, thereby ensuring the quality of pressure bonding;

[0023] (3) The utility model provides a slide groove and a guide hole, which is conducive to achieving an adjustable position of the support part on the bottom plate, and is therefore suitable for brake pads of different models, that is, brake pads with different center distances of the mounting holes, thereby expanding the scope of application of the tooling. At the same time, by providing a positioning table, it is convenient to quickly align the mounting hole of the silencer with the flange of the positioning part when placing the silencer, thereby improving the compression bonding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the forward three-dimensional structure of Example 1 of the utility model;

[0025] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0026] Figure 3 This is a schematic diagram of the back-facing three-dimensional structure of Embodiment 1 of the present utility model;

[0027] Figure 4 It is a top view of embodiment 1 of the utility model;

[0028] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the positioning part of Example 1 of the utility model;

[0031] Figure 8 This is a front view of the positioning portion of Example 1 of the utility model;

[0032] Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure at CC in the middle;

[0033] Fig.10 This is a schematic diagram of the forward three-dimensional structure of Example 2 of the utility model;

[0034] Fig.11 This is a schematic diagram of the back-facing three-dimensional structure of Embodiment 2 of the present utility model;

[0035] Fig.12 This is a schematic diagram of the forward three-dimensional structure of Example 3 of the utility model;

[0036] Fig.13 This is a schematic diagram of the back-facing three-dimensional structure of Example 3 of the utility model.

[0037] In the figure, 100 is a bottom plate; 101 is a slide groove; 102 is a guide hole; 103 is a positioning platform; 104 is a hole position;

[0038] 200, support part;

[0039] 300, positioning portion; 301, matching hole; 302, flange; 303, body; 3031, first matching surface; 3032, second matching surface;

[0040] 400, steel back;

[0041] 500, brake pads;

[0042] 600. Silencer. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0045] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0046] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0047] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. The following is a further explanation of the present invention in conjunction with the accompanying drawings and embodiments.

[0049] In order to solve the limitations of the prior art, this embodiment provides a technical solution, and the technical solution of the utility model is further described below in conjunction with the drawings and embodiments.

[0050] The utility model is mainly aimed at improving the technical problems existing in the new structure of the brake pad 500 when the silencer 600 is pressed and bonded. The new structure of the brake pad 500 is changed mainly in that two mounting holes are added. These two mounting holes pass through the brake pad 500 and its steel back 400, and are mainly used to install positioning pins to determine the matching position of the brake pad 500 and the caliper.

[0051] Example 1

[0052] A positioning tool for pressing and bonding a brake pad 500 to a silencer 600, comprising: a bottom plate 100, mounted on a press workbench, used to support a tooling assembly to press and bond the silencer 600 to be pressed and bonded to a steel back 400 of the brake pad 500, specifically, a slide groove 101 is provided on the bottom plate 100, and the slide groove 101 can be provided as a rectangular hole groove recessed inside the bottom plate 100, and a guide hole 102 penetrating the bottom plate 100 is provided in the slide groove 101, wherein the size of the guide hole 102 is smaller than the size of the slide groove 101. 01 size, and the guide hole 102 does not penetrate the bottom plate 100 along the length direction, the guide hole 102 can be set as a long hole or a rectangular hole, and the cross-sectional shape of the slide groove 101 and the guide hole 102 here is a stepped hole; a tooling assembly is used to position the silencer 600 and the steel back 400 of the brake pad 500, so that the mounting hole of the steel back 400 of the brake pad 500 falls in the mounting hole of the silencer 600 when projected along the axial direction, and the axial projection here can be understood as the axial direction along the mounting hole of the brake pad 500. The tooling assembly includes: a support portion 200, which is mounted on the base plate 100. Specifically, the support portion 200 is movably mounted on the base plate 100 and its position is fixed by a positioning portion 300. Specifically, the support portion 200 includes a thick end and a thin end. The thick end is located in the slide groove 101, and the thin end passes through the guide hole 102 and is installed with the matching hole 301 of the positioning portion 300. Here, the support portion 200 can adopt a conventional screw or other structure that can have the above-mentioned shape characteristics; a positioning portion 300, which is mounted on the support portion 200. Here, the positioning portion 300 and the support portion 200 can be installed by threaded installation, or other fixing methods, such as welding or interference fit installation. The positioning portion 300 respectively positions the mounting hole of the silencer 600 and the mounting hole of the steel back 400 of the brake pad 500, so that the projection of the mounting hole of the steel back 400 of the brake pad 500 is located in the mounting hole of the silencer 600.The specific size is defined as follows: the positioning portion 300 is provided with a flange 302 protruding from the body 303, the size of the flange 302 is smaller than the size of the mounting hole of the silencer 600 and larger than the size of the body 303, the size of the mounting hole of the brake pad 500 steel back 400 is larger than the size of the positioning portion 300 body 303 and smaller than the size of the mounting hole of the silencer 600, the size here is only the size in each direction, it can be understood that: the size of the flange 302 is smaller than the size of the mounting hole of the silencer 600, that is, the flange 302 is completely located in the mounting hole of the silencer 600 and is in contact with the silencer There is no contact between the edges of the mounting holes of 600, and the thickness h of the silencer 600 is greater than the thickness H of the flange 302 of the positioning portion 300. The thickness setting here is conducive to ensuring that the pressure during press-fitting can be completely transmitted to the silencer 600 through the brake pad 500-steel back 400, thereby ensuring the firmness of the press-bonding. The tooling assembly includes two groups, and the two groups respectively include a supporting portion 200 and a positioning portion 300. When in use, the spacing between the two positioning portions 300 is equal to the center distance between the two mounting holes of the silencer 600, and is also equal to the center distance between the two mounting holes of the steel back 400 of the brake pad 500.

[0053] The outer shape of the main body 303 of the positioning part 300 is inserted into the mounting hole of the steel back 400 of the brake pad 500, and the steel back 400 of the brake pad 500 cannot rotate around the main body 303 of the positioning part 300. The non-rotatable state can avoid the muffler 600 from rotating when being placed, which causes the muffler 600 to be time-consuming to align. Specifically, the structure can be designed as follows: the outer peripheral surface of the main body 303 of the positioning part 300 includes a first mating surface 3031 and a second mating surface 3032, the first mating surface 3031 is set as an arc surface, and the second mating surface 3032 is set as a plane. The first mating surface 3031 and the second mating surface 3032 are both set as two, and are spaced apart from each other, which can play a good positioning and guiding role.

[0054] Example 2

[0055] On the basis of Example 1, the difference of this embodiment is that: the number of the slide grooves 101 is two, and the opening directions are set in opposite directions, which can be understood here as: the two slide grooves 101 are not connected, and extend respectively to the two edge directions of the bottom plate 100, and a positioning platform 103 is set on one side of the bottom plate 100 for installing the silencer 600, and the positioning platform 103 is located at the center between the two slide grooves 101, and the positioning platform 103 matches the concave hole on the top of the silencer 600 for quickly positioning the silencer 600, and the positioning platform 103 can be set to a truncated cone shape, and the concave hole of the silencer 600 is set to a semicircular arc hole matching the truncated cone shape.

[0056] Example 3

[0057] On the basis of Example 2, the difference of this embodiment is as follows: a slide groove 101 is arranged on the base plate 100, and a plurality of holes 104 penetrating the base plate 100 are arranged in the slide groove 101; the support portion 200 includes a thick end and a thin end, and the thick end is located in the slide groove 101; the thin end passes through the hole 104 and is installed with the matching hole 301 of the positioning portion 300; the setting of the hole 104 here is mainly for different types of brake pads 500 with different installation hole spacings; when in use, the support portion 200 can be installed in the corresponding hole 104 according to needs, thereby being suitable for the compression bonding operation of different types of brake pads 500 and silencer plates 600.

[0058] When using Example 3 to perform the compression bonding operation of the brake pad 500 and the silencer 600, the support part 200 is installed on the base plate 100, and the positioning part 300 is installed on the support part 200. The base plate 100 is placed on the workbench of the press and limited. The mounting holes of the silencer 600 are respectively inserted into the two positioning parts 300 so that the mounting hole position 104 of the silencer 600 is outside the flange 302 of the positioning part 300. Then, the mounting holes of the steel back 400 of the brake pad 500 are inserted into the two positioning parts 300 so that the steel back 400 is placed on the silencer 600 and in contact with it. The press is operated to apply pressure on the brake pad 500 to perform the compression bonding operation.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning tool for brake pad compression bonding silencer, characterized in that: include: A bottom plate (100) is installed on a press workbench and is used to support a tooling assembly to perform a press bonding operation on a silencer plate (600) and a steel back (400) of a brake pad (500) to be press bonded; The tooling assembly is used to position a silencer (600) and a steel back (400) of a brake pad (500) so that the mounting hole of the steel back (400) of the brake pad (500) falls within the mounting hole of the silencer (600) when projected along the axial direction.

2. A positioning tool for brake pad compression bonding silencer according to claim 1, characterized in that: The tooling assembly comprises: A support portion (200), the support portion (200) being mounted on the base plate (100); A positioning portion (300) is mounted on the support portion (200) and is used to position the mounting hole of the silencer (600) and the mounting hole of the steel back (400) of the brake pad (500) respectively, so that the mounting hole of the steel back (400) of the brake pad (500) is projected to be located inside the mounting hole of the silencer (600).

3. A positioning tool for brake pad press-bonding silencer according to claim 2, characterized in that: The positioning portion (300) is provided with a flange (302) protruding from the main body (303), the size of the flange (302) is smaller than the size of the mounting hole of the silencer (600) and larger than the size of the main body (303), and the size of the mounting hole of the steel back (400) of the brake pad (500) is larger than the size of the main body (303) of the positioning portion (300) and smaller than the size of the mounting hole of the silencer (600).

4. A positioning tool for brake pad compression bonding silencer according to claim 3, characterized in that: The thickness h of the noise-absorbing sheet (600) is greater than the thickness H of the flange (302) of the positioning portion (300).

5. A positioning tool for brake pad compression bonding silencer according to claim 4, characterized in that: The outer shape of the body (303) of the positioning part (300) is inserted into and matched with the mounting hole of the steel back (400) of the brake pad (500), and the steel back (400) of the brake pad (500) cannot rotate around the body (303) of the positioning part (300).

6. A positioning tool for brake pad press-bonding silencer according to claim 5, characterized in that: The outer peripheral surface of the body (303) of the positioning portion (300) comprises a first mating surface (3031) and a second mating surface (3032); the first mating surface (3031) is configured as an arc surface, and the second mating surface (3032) is configured as a plane.

7. A positioning tool for brake pad press-bonding silencer according to claim 6, characterized in that: The support part (200) is movably mounted on the bottom plate (100) and its position is fixed by a positioning part (300).

8. The positioning tool for brake pad press-bonding silencer according to claim 7, characterized in that: A slide groove (101) is provided on the bottom plate (100), and a guide hole (102) penetrating the bottom plate (100) is provided in the slide groove (101). The support portion (200) comprises a thick end and a thin end, and the thick end is located in the slide groove (101), and the thin end passes through the guide hole (102) and is installed with the matching hole (301) of the positioning portion (300).

9. A positioning tool for brake pad compression bonding silencer according to claim 7, characterized in that: The bottom plate (100) is provided with a slide groove (101), and a plurality of holes (104) penetrating the bottom plate (100) are provided in the slide groove (101). The support portion (200) comprises a thick end and a thin end, and the thick end is located in the slide groove (101), and the thin end passes through the hole (104) and is installed with the matching hole (301) of the positioning portion (300).

10. A positioning tool for brake pad press-bonding silencer according to claim 8 or 9, characterized in that: The number of the slide grooves (101) is two, and the opening directions are arranged in opposite directions. A positioning platform (103) is arranged on one side of the bottom plate (100) for mounting the silencer (600). The positioning platform (103) is located at the center between the two slide grooves (101). The positioning platform (103) matches the concave hole on the top of the silencer (600) and is used to quickly position the silencer (600).

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