Assembly positioning device for a wiper motor brush carrier assembly

Abstract

The application discloses a kind of assembly positioning device of wiper motor brush holder assembly, including base, adapter plate, adapter plate is located at one end of base with and base is fixed;Riveting plate, riveting plate is located on adapter plate, riveting plate is connected with adapter plate in a detachable manner, first accommodating groove for accommodating the brush holder assembly is equipped on riveting plate, first positioning component for circumferentially positioning brush holder assembly is further equipped on riveting plate, and first positioning component is located in first accommodating groove;Workbench, workbench is equipped with first assembly area and second assembly area, first assembly area is equipped with multiple first positioning holes, and second assembly area is equipped with multiple second positioning holes;The other end of the base is equipped with multiple sets of elastic positioning components, and the elastic positioning components are matched with the first positioning hole or the second positioning hole.The riveting positioning precision of the present application can be improved, and the working efficiency can be ensured, and the influence caused by human operation can be reduced.

Description

Technical Field

[0001] This invention relates to the field of wiper motor brush holder assembly technology, and more specifically to an assembly and positioning device for a wiper motor brush holder assembly. Background Technology

[0002] The wiper motor's brush holder assembly includes at least a brush holder ring, inductors, brush boxes, brushes, and spring supports. Three inductors are evenly distributed on the brush holder ring, and a brush box is installed next to each inductor, with one brush installed in each brush box. Three elastic components are installed on the brush holder ring, with one end of each component connected to the brush. These components continuously push the brush to make contact with the motor commutator, thus enabling the motor to run. The elastic components are torsion springs, and they are supported by spring supports.

[0003] Both the brush box and the spring support are fixed on the brush holder ring. Currently, the assembly is divided into two processes: the first step is pressing and the second step is riveting. To ensure production efficiency, both processes are completed at the same station. First, the tooling is manually pushed against the pressing positioning column on the platform to achieve tooling positioning. After the tooling is positioned, the pressing equipment presses the brush holder ring and the brush box on the tooling. After pressing, the tooling is moved to be close to the riveting positioning column to achieve tooling positioning. Then, the spring support is riveted to the brush holder ring.

[0004] The above method relies on positioning pins for positioning, but since it's done by workers, the tooling and positioning pins cannot be precisely positioned at the designated location. Therefore, human error is significant, resulting in low positioning accuracy. Furthermore, the tooling structure is simply a base; because the brush holder components for different car models have different structures, this tooling inevitably lacks universality. Different tooling is needed for assembling brush holder components for different car models, leading to numerous tooling options and high costs. Summary of the Invention

[0005] This invention provides an assembly and positioning device for a wiper motor brush holder assembly. This invention can improve the riveting positioning accuracy, ensure work efficiency, and reduce the impact of human operation.

[0006] The technical solution to the above problem is as follows:

[0007] The wiper motor brush holder assembly assembly positioning device includes a base and also includes:

[0008] The adapter plate is located at one end of the base and fixed to the base.

[0009] A riveting plate is located on an adapter plate. The riveting plate and the adapter plate are detachably connected. The riveting plate is provided with a first receiving groove for accommodating the brush holder assembly. The riveting plate is also provided with a first positioning component for circumferential positioning of the brush holder assembly. The first positioning component is located in the first receiving groove.

[0010] The workbench has a first assembly area and a second assembly area. The first assembly area has multiple first positioning holes, and the second assembly area has multiple second positioning holes.

[0011] The other end of the base is provided with multiple sets of elastic positioning components, which cooperate with the first positioning hole or the second positioning hole.

[0012] In this invention, multiple first positioning holes are provided in the first assembly area of ​​the workbench, and multiple second positioning holes are provided in the second assembly area of ​​the workbench. Since the other end of the base has multiple sets of elastic positioning components, these elastic positioning components cooperate with the first or second positioning holes. For example, when the base is located in the first assembly area, the elastic positioning components cooperate with the first positioning holes. After the brush holder assembly completes the first assembly process in the first assembly area, the elastic positioning components on the base separate from the first positioning holes, and the base is moved to the second assembly area, where the elastic positioning components cooperate with the second positioning holes. An assembly process is then performed on the brush holder assembly in the second assembly area. The brush holder assembly can only be assembled after the elastic positioning components cooperate with the first or second positioning holes. Since the positions of the first and second positioning holes are fixed, this positioning method improves the positioning accuracy of the base. Furthermore, since the adapter plate is fixed to the base, and the riveting plate is detachably connected to the adapter plate, the riveting plate and the adapter plate are integrated with the base after assembly. The brush holder assembly located in the first receiving groove of the riveting plate is integrated with the riveting plate, thus ensuring the positioning accuracy of the brush holder assembly when switching between the first assembly area and the second assembly area. Therefore, this invention can improve riveting positioning accuracy while ensuring work efficiency and reducing the impact of human operation. Attached Figure Description

[0013] Figure 1 This is a top view of the assembly and positioning device for the wiper motor brush holder assembly of the present invention;

[0014] Figure 2 For along Figure 1 A cross-sectional view of the EE line in the diagram;

[0015] Figure 3 For along Figure 1 A cross-sectional view of the FF line in the diagram;

[0016] Figure 4 This is an assembly drawing of the base, adapter plate, rivet plate, and brush holder assembly.

[0017] Figure 5 This is a schematic diagram showing the different positions on the base worktable;

[0018] Labels in the attached diagram:

[0019] Base 1, first mounting hole 1a, adapter plate 2, first positioning boss 2a, second through hole 2b, riveting plate 3, first receiving groove 3a, first positioning component 3b, second positioning boss 3c, worktable 4, first positioning hole 4a, second positioning hole 4b, rolling element 5, spring 6, positioning pin 7, brush holder ring A, brush box B, spring support C. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 4 As shown, the assembly and positioning device for the wiper motor brush holder assembly of the present invention includes a base 1, an adapter plate 2, a riveting plate 3, and a worktable 4. The following is a detailed description of each part and the relationship between them:

[0022] The adapter plate 2 is located at one end of the base 1 and fixed to the base 1. The riveting plate 3 is located on the adapter plate 2 and is detachably connected to the adapter plate 2. The riveting plate 3 is provided with a first receiving groove 3a for accommodating the brush holder assembly. The riveting plate 3 is also provided with a first positioning component 3b for circumferential positioning of the brush holder assembly. The first positioning component 3b is located in the first receiving groove 3a. The workbench 4 is provided with a first assembly area and a second assembly area. The first assembly area is provided with multiple first positioning holes 4a, and the second assembly area is provided with multiple second positioning holes 4b. The other end of the base 1 is provided with multiple sets of elastic positioning components, which cooperate with the first positioning holes 4a or the second positioning holes 4b.

[0023] like Figures 1 to 5As shown, in this invention, multiple first positioning holes 4a are provided in the first assembly area on the workbench 4, and multiple second positioning holes 4b are provided in the second assembly area on the workbench 4. Since the other end of the base 1 is provided with multiple sets of elastic positioning components, these elastic positioning components cooperate with either the first positioning holes 4a or the second positioning holes 4b. For example, when the base 1 is located in the first assembly area, the elastic positioning components cooperate with the first positioning holes 4a. After the brush holder assembly completes the first assembly process in the first assembly area, the elastic positioning components on the base 1 are separated from the first positioning holes 4a, and the base 1 is moved to the second assembly area, where the elastic positioning components cooperate with the second positioning holes 4b. An assembly process is then performed on the brush holder assembly in the second assembly area. The brush holder assembly can only be assembled after the elastic positioning components cooperate with either the first positioning holes 4a or the second positioning holes 4b. Since the positions of the first positioning holes 4a and the second positioning holes 4b are fixed, this positioning method improves the positioning accuracy of the base 1. Since the adapter plate 2 is fixed to the base 1 and the rivet plate 3 is detachably connected to the adapter plate 2, the rivet plate 3 and the adapter plate 2 are integrated with the base 1 after assembly. The brush holder assembly located in the first receiving groove 3a of the rivet plate 3 is integrated with the rivet plate 3, so that the positioning accuracy of the brush holder assembly is guaranteed when switching between the first assembly area and the second assembly area.

[0024] like Figure 2 and 3 As shown, the base 1 is provided with a plurality of first mounting holes 1a, each first mounting hole 1a engaging with at least a portion of a set of elastic positioning components. When the set of elastic positioning components and the worktable 4 are in different engaging positions, the set of elastic positioning components expands or contracts within the first mounting hole 1a.

[0025] like Figure 2 and 3 As shown, the elastic positioning assembly includes a rolling element 5 and a spring 6. The first mounting hole 1a is a stepped hole. The rolling element 5 has a first switching position and a second switching position. When the rolling element 5 is in the first switching position, a part of the rolling element 5 is located in the first mounting hole 1a, and the other part of the rolling element 5 engages with either the first positioning hole 4a or the second positioning hole 4b under the tension of the spring 6. When the rolling element 5 is in the second switching position, a part of the rolling element 5 engages with the first mounting hole 1a, and the other part of the rolling element 5 engages with the surface of the worktable 4. The rolling element 5 is preferably made of steel ball.

[0026] like Figure 2 and 3As shown, in this invention, since the base 1 needs to switch between the first assembly area and the second assembly area, the elastic positioning component needs to switch between the first positioning hole 4a and the second positioning hole 4b. To facilitate the movement of the base 1 and enable the base 1 to be quickly positioned, the elastic positioning component adopts a structure composed of a rolling element 5 and a spring 6. When the rolling element 5 needs to engage with the first positioning hole 4a or the second positioning hole 4b, under the tension of the spring 6, another part of the rolling element 5 is exposed outside the first assembly hole 1a and engages with the first positioning hole 4a or the second positioning hole 4b. When the rolling element 5 is separated from the first positioning hole 4a or the second positioning hole 4b, the rolling element 5 is pushed by the surface of the worktable 4, and the rolling element 5 compresses the spring 6, pushing the base 1 and / or the adapter plate 2 and / or the riveting plate 3. The rolling element 5 rolls along the worktable 4, which can increase the movement efficiency of the base 1 and avoid surface-to-surface friction between the base 1 and the worktable 4, preventing the base 1 from being worn and reducing its accuracy.

[0027] like Figure 2 and 3 As shown, the first mounting hole 1a is a through hole, and the adapter plate 2 is provided with a first positioning boss 2a, which is clearance-fitted with the first mounting hole 1a. The fit between the first positioning boss 2a and the first mounting hole 1a restricts the mounting position of the adapter plate 2 and facilitates quick installation. After the first positioning boss 2a and the first mounting hole 1a are clearance-fitted, screws are preferentially used to fix the adapter plate 2 to the base 1.

[0028] like Figure 2 and 3 As shown, the adapter plate 2 is provided with a second through hole 2b, the first positioning boss 2a surrounds the opening of the second through hole 2b, and the riveting plate 3 is provided with a second positioning boss 3c, which is clearance-fitted with the second through hole 2b.

[0029] like Figure 2 and 3 As shown, the assembly position of the rivet plate 3 is restricted by the cooperation between the second positioning boss 3c and the second through hole 2b, and at the same time, it plays a role in quick installation. After the second positioning boss 3c and the second through hole 2b are engaged, screws are used to fix the rivet plate 3 and the adapter plate 2.

[0030] like Figure 2 and 3As shown, one end of the spring 6 passes through the first mounting hole 1a and the second through hole 2b in sequence and then abuts against the second positioning boss 3c. Combined with the aforementioned first positioning boss 2a and second positioning boss 3c, this structure not only provides quick-release positioning for the adapter plate 2 and the riveting plate 3, improving the installation accuracy of the riveting plate 3, but also restricts the spring 6 through the second positioning boss 3c, thereby increasing the extension or compression stroke of the spring 6.

[0031] like Figure 2 and 3 As shown, it also includes positioning pins 7. At least one pair of diagonal parts of the base 1, adapter plate 2, and riveting plate 3 are provided with positioning pin holes. The positioning pin holes on the adapter plate 2 and riveting plate 3 are through holes, while the positioning pin holes on the base 1 are blind holes. The positioning pins 7 are all engaged with the positioning pin holes on the base 1, adapter plate 2, and riveting plate 3.

[0032] like Figure 2 and 3 As shown, during assembly, the rolling element 5 and the spring 6 are placed into the first assembly hole 1a in sequence. After the positioning pin 7 is inserted into the positioning pin hole on the base 1, the positioning pin 7 is then passed through the positioning pin hole on the adapter plate 2. After the first positioning boss 2a on the adapter plate 2 is properly fitted with the first assembly hole 1a, the positioning pin 7 is inserted into the positioning pin hole on the riveting plate 3. In this way, the second positioning boss 3c on the riveting plate 3 is automatically aligned with the second through hole 2b. Finally, screws are passed through the riveting plate 3, the adapter plate 2 and the base 1 in sequence to connect them with the threaded connection, so that the riveting plate 3, the adapter plate 2 and the base 1 are fastened into one piece.

[0033] like Figure 1 and Figure 2 In this embodiment, the brush holder assembly involves brush holder ring A, brush box B, and spring support C. When assembling the brush holder assembly, brush holder ring A is first placed in the first receiving groove 3a. Brush holder ring A has positioning holes. The first positioning component 3b engages with the positioning holes to circumferentially position the brush holder ring A. Then, the base 1 located on the workbench 4 is moved to the first assembly area (e.g., ...). Figure 5 The rolling element 5 engages with the first positioning hole 4a, and the base 1 is positioned in the first assembly area. At this station, the brush box B and brush holder ring A are pressed together. After pressing, the base 1 is moved, causing the rolling element 5 to exit the first positioning hole 4a, and the base 1 is pushed to continue moving to the second assembly area (e.g., ...). Figure 5 The rolling element 5 is then engaged with the second positioning hole 4b. At this station, the spring support C and the brush holder ring A are pressed together. After pressing, the base 1 is moved, causing the rolling element 5 to exit the second positioning hole 4b. The rolling element 5 then engages with the surface of the worktable 4.

[0034] Furthermore, the present invention can select a riveting plate 3 with a first receiving groove 3a of different inner diameters according to the brush holder assembly of different diameters. The riveting plate 3, the adapter plate 2 and the base 1 are all effectively positioned by two positioning pins 7 at diagonal positions, which can realize the use of the same tooling base 1 and adapter plate 2 for press-fitting of various brush holder assemblies. That is, when facing brush holder assemblies of different diameters, only the riveting plate 3 needs to be replaced. In this respect, the present invention has the advantage of good versatility.

[0035] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit them, much less limit the scope of protection of the present invention. Although the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of protection of the claims.

Claims

1. An assembly and positioning device for a wiper motor brush holder assembly, comprising a base (1), characterized in that, Also includes: Adapter plate (2), the adapter plate (2) is located at one end of the base (1) and fixed to the base (1); The riveting plate (3) is located on the adapter plate (2). The riveting plate (3) and the adapter plate (2) are detachably connected. The riveting plate (3) is provided with a first receiving groove (3a) for accommodating the brush holder assembly. The riveting plate (3) is also provided with a first positioning component (3b) for circumferential positioning of the brush holder assembly. The first positioning component (3b) is located in the first receiving groove (3a). The workbench (4) has a first assembly area and a second assembly area. The first assembly area has multiple first positioning holes (4a) and the second assembly area has multiple second positioning holes (4b). The other end of the base (1) is provided with multiple sets of elastic positioning components, which cooperate with the first positioning hole (4a) or the second positioning hole (4b); The base (1) is provided with a plurality of first mounting holes (1a), each first mounting hole (1a) engaging with at least a portion of a set of elastic positioning components; The elastic positioning assembly includes a rolling element (5) and a spring (6). The first mounting hole (1a) is a stepped hole, and the rolling element (5) has a first switching position and a second switching position. When the rolling element (5) is in the first switching position, a part of the rolling element (5) is located in the first mounting hole (1a), and the other part of the rolling element (5) is engaged with the first positioning hole (4a) or the second positioning hole (4b) under the tension of the spring (6); When the rolling element (5) is in the second switching position, a part of the rolling element (5) engages with the first mounting hole (1a), and the other part of the rolling element (5) engages with the surface of the worktable (4).

2. The assembly and positioning device for the wiper motor brush holder assembly according to claim 1, characterized in that, The first assembly hole (1a) is a through hole, and the adapter plate (2) is provided with a first positioning boss (2a), which is clearance-fitted with the first assembly hole (1a).

3. The assembly and positioning device for the wiper motor brush holder assembly according to claim 2, characterized in that, The adapter plate (2) is provided with a second through hole (2b), and the first positioning boss (2a) surrounds the opening of the second through hole (2b). The riveting plate (3) is provided with a second positioning boss (3c), and the second positioning boss (3c) is clearance-fitted with the second through hole (2b).

4. The assembly and positioning device for the wiper motor brush holder assembly according to claim 3, characterized in that, One end of the spring (6) passes through the first mounting hole (1a) and the second through hole (2b) in sequence and then abuts against the second positioning boss (3c).

5. The assembly and positioning device for the wiper motor brush holder assembly according to claim 1, characterized in that, It also includes positioning pins (7), and at least one pair of diagonal parts of the base (1), adapter plate (2) and riveting plate (3) are provided with positioning pin holes, wherein the positioning pin holes on the adapter plate (2) and riveting plate (3) are through holes, and the positioning pin holes on the base (1) are blind holes. The positioning pins (7) are all engaged with the positioning pin holes on the base (1), adapter plate (2) and riveting plate (3).

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