A mechanism for ensuring the installation consistency of a car light dimming motor and a bracket

Abstract

The present invention relates to the technical field of vehicle light dimming motor assembly technology, and more particularly to a mechanism for ensuring the installation consistency of a vehicle light dimming motor and a bracket, comprising a mounting base, a positioning mechanism mounted on the mounting base and used to position the dimming lift bracket; and a toggle mechanism comprising a toggle portion rotatably disposed on the mounting base and used to propel the dimming motor relative to the dimming lift bracket to a set angle. The present invention's mechanism for ensuring the installation consistency of a vehicle light dimming motor and a bracket effectively addresses the issue of discrepancies in the rotation angle and engagement angle of key steps in the vehicle light assembly process (assembly of the vehicle light dimming motor and the dimming lift bracket). The invention is compact in structure, easy to operate, labor-saving, and safe to implement, and can ensure the consistency requirements of mass production and assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamp dimming motor assembly, and in particular to a mechanism for ensuring the installation consistency of a vehicle lamp dimming motor and a bracket. Background Art

[0002] Currently, the installation of the headlight dimming motor and the dimming lifting bracket is a key process in the manufacturing process of headlights. In the era of mass production of automobiles, purely manual operation of this special process cannot meet the assembly quality goals. Analysis of the failure cause is that the headlight dimming motor is not rotated to the matching angle position, such as Figure 1 , first insert the dimming motor into the hole of the dimming lifting bracket, such as Figure 2 and Figure 3 , then the assembly rotation angle is required to be (45°±1°), so as to achieve Figure 4 If the card point positions fail to match each other, the headlight dimming motor will partially fall off from the dimming lifting bracket during operation. The compression position where the headlight dimming motor and the dimming lifting bracket are installed is difficult to find visually inside the headlight housing. After the falling off occurs, the headlight dimming function is completely ineffective. The secondary rework requires destructive disassembly of the lamp subassembly, and the entire component is scrapped, resulting in labor waste, cost waste, and resource waste. The existing technology uses pneumatic, hydraulic, and electric structures to achieve assembly. For example, the Chinese patent with publication number CN203681389U discloses a built-in dimming motor assembly auxiliary device, which uses a micro switch as an auxiliary device. However, this structure also has the risk of false triggering, so it is still difficult to ensure the installation consistency of the headlight dimming motor and the dimming lifting bracket. Summary of the Invention

[0003] In order to solve the problem of difference in matching rotation angle between the headlight dimming motor and the lifting bracket in the automobile headlight assembly process in the prior art, the present invention provides a mechanism for ensuring the installation consistency of the automobile headlight dimming motor and the bracket, which can ensure the consistency requirements of mass production and assembly.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A mechanism for ensuring the installation consistency of a vehicle light dimming motor and a bracket, comprising:

[0006] Install the base plate,

[0007] A positioning mechanism, the positioning mechanism is installed on the installation base plate and is used to position the dimming lifting bracket;

[0008] The toggle mechanism includes a toggle part, which is rotatably arranged on the mounting base plate and is used to push the dimming motor to rotate to a set angle relative to the dimming lifting bracket.

[0009] Furthermore, the toggle portion is disengaged from the dimming motor when the dimming motor rotates to a set angle relative to the dimming lifting bracket.

[0010] Furthermore, the circle with the rotation center of the toggle mechanism as the center and passing through the maximum contour of the toggle part is the maximum contour circle. When the dimming motor rotates to a set angle relative to the dimming lifting bracket, the maximum contour circle is tangent to the force surface of the dimming motor.

[0011] Furthermore, the end of the toggle portion has a cylindrical surface, and the cylindrical surface coincides with the maximum contour circle.

[0012] Furthermore, the toggle unit is provided with a contact curved surface that contacts the force-bearing surface of the dimming motor. The contact curve of the contact curved surface and the force-bearing surface forms an involute line, and the contact curved surface is smoothly connected to the cylindrical surface. When the toggle unit pushes the dimming motor, the contact curved surface contacts the force-bearing surface of the dimming motor, converting power like a gear transmission, and the toggle unit to toggle the headlight dimming motor to rotate. During the transmission process, the contact curved surface contacts the force-bearing surface of the dimming motor in an involute line, compensating for and balancing the torque during the rotation process, making the operation of this mechanism easy and labor-saving.

[0013] Furthermore, the toggle portion has two cylindrical surfaces, which are symmetrical about the rotation center of the toggle mechanism. The toggle portion also has at least two contact curved surfaces, which are symmetrical about the rotation center of the toggle mechanism. On the one hand, with toggle portions provided on both sides of the toggle mechanism, the dimming motor and the dimming lift bracket can be assembled once with each 180° rotation of the toggle mechanism. The two cylindrical surfaces on the toggle portion, which are symmetrical about the rotation center of the toggle mechanism, ensure that the maximum contour circle size remains consistent throughout the 180° rotation of the toggle portion, thus ensuring consistent assembly of the dimming motor and the dimming lift bracket.

[0014] Furthermore, the positioning mechanism is provided with a limit pin for limiting the initial angle of the dimming motor. The limit pin can easily position the dimming lifting bracket and the dimming motor at their initial positions under the action of the limit cavity and the initial positioning of the dimming motor.

[0015] Furthermore, a flange shaft is fixed on the mounting base plate, and the toggle mechanism is rotatably connected to the flange shaft.

[0016] Furthermore, the positioning mechanism has a limiting cavity, and the limiting cavity matches the shape of the dimming lifting bracket, thereby at least limiting the rotation of the dimming lifting bracket.

[0017] Furthermore, the positioning mechanism and the flange shaft are each provided with a waist hole, and both are secured to the mounting base plate via set screws, which pass through the corresponding waist holes and are threadedly connected to the mounting base plate. The waist holes in the positioning mechanism and the flange shaft allow for fine adjustment of their relative positions based on assembly accuracy requirements.

[0018] Beneficial effects:

[0019] (1) The present invention provides a mechanism for ensuring the installation consistency of a headlight dimming motor and a bracket, which effectively solves the problem of discrepancies in the rotation angle and the engagement angle in the key process of headlight assembly (assembly of the headlight dimming motor and the dimming lifting bracket). The invention has a sophisticated structure, is easy to operate, labor-saving, and safe to implement, and can ensure the consistency requirements of mass production and assembly.

[0020] (2) The limiting cavity on the positioning mechanism and the limiting pin for the initial positioning of the motor ensure that the angle positioning of the headlight dimming motor is easy to place; the toggle mechanism on the rotating flange shaft, during the process, the contact surface and the cylindrical surface contact with the force surface of the headlight dimming motor in turn, and the power is converted like a gear transmission, to toggle the headlight dimming motor body to rotate; the contact surface on the toggle mechanism is in involute contact with the force surface of the headlight dimming motor during the transmission process, and the contact surface acts to compensate and balance the rotational torque, so the operation process of the mechanism is easy, labor-saving and stable;

[0021] (3) A toggle part is provided on both sides of the toggle mechanism, so the assembly of the dimming motor and the dimming lifting bracket can be completed once the toggle mechanism rotates 180°. There are two cylindrical surfaces on the toggle part, and the cylindrical surfaces are symmetrical along the rotation center of the toggle mechanism. This ensures that the maximum contour circle size is consistent during the 180° rotation of the toggle part, ensuring the assembly consistency of the dimming motor and the dimming lifting bracket;

[0022] (4) The positioning mechanism and the flange shaft are both provided with waist holes, and the relative position is finely adjusted according to the assembly accuracy requirements to adjust the distance between the toggle mechanism and the contact surface of the headlight dimming motor; to ensure the installation accuracy requirements of the headlight dimming motor and the dimming lifting bracket;

[0023] (5) This solution is superior to other structures that use pneumatic, hydraulic, and electric methods to achieve assembly. Other solutions may cause safety accidents such as squeezing and pinching of operators' fingers during operation (the industry basically adopts protective isolation, isolating human hands in a safe area during operation, which directly reduces production efficiency by 80%). This ingenious structure is safer, has stronger human-machine collaboration, is cheaper to implement, and does not take up too much work surface space. It improves product assembly quality and processing efficiency while taking into account operator safety. The structure is sophisticated, the materials are easy to source and process, and the structure is simple to implement in the later stage of TPM (Total Productive Maintenance), with almost no use and maintenance costs.

[0024] (6) The automobile headlight dimming motor and bracket installation consistency guarantee mechanism of the present invention adopts a mechanical assembly structure. Compared with the structure that uses pneumatic, hydraulic, and electric assembly, the mechanical assembly structure of the present invention is more stable and reliable, will not cause false triggering, and solves the problem of matching difference in the rotation angle between the dimming motor and the dimming lifting bracket on the production line;

[0025] (7) The assembly of a set of dimming motors and dimming lifting brackets can be completed by rotating the toggle mechanism about 180°, which is highly efficient. In order to ensure that the assembly is in place, the toggle mechanism can be continued to be rotated after rotating 180° to ensure that the dimming motor and the dimming lifting bracket are snapped into place, ensuring that the assembly is firm and the operability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the assembly relationship between the dimming motor and the dimming lifting bracket;

[0028] Figure 2 This is a schematic diagram of the initial assembly position of the dimming motor and the dimming lifting bracket;

[0029] Figure 3 A top view of the dimming motor and the dimming lifting bracket in their initial assembly position;

[0030] Figure 4 This is a top view of the dimming motor and dimming lifting bracket after assembly.

[0031] Figure 5 Schematic diagram of the three-dimensional structure of the installation consistency assurance mechanism of the present invention;

[0032] Figure 6 This is a working principle diagram of the installation consistency assurance mechanism of the present invention.

[0033] Among them, 1. Mounting base plate, 2. Positioning mechanism, 21. Limiting cavity, 3. Toggle mechanism, 31. Toggle part, 311. Cylindrical surface, 312. Contact curved surface, 4. Flange shaft, 5. Dimming lifting bracket, 6. Dimming motor, 61. Force surface, 7. Limiting pin, 8. Locking pin, 9. Round head screw, 10. Gasket, A. Maximum contour circle. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0040] like Figures 5-6 , which is a mechanism for ensuring the installation consistency of a dimming motor and a bracket of an automobile headlight of the present invention, includes a mounting base 1, a positioning mechanism 2 and a toggle mechanism 3. The positioning mechanism 2 is mounted on the mounting base 1 and is used to position the dimming lifting bracket 5; the toggle mechanism 3 includes a toggle part 31, which is rotatably set on the mounting base 1 and is used to push the dimming motor 6 to rotate relative to the dimming lifting bracket 5 at a set angle.

[0041] When the dimming motor 6 rotates to a set angle relative to the dimming lifting bracket 5 , the toggle portion 31 is disengaged from the dimming motor 6 .

[0042] The circle with the rotation center of the toggle mechanism 3 as the center and passing through the maximum contour of the toggle part 31 is the maximum contour circle A. When the dimming motor 6 rotates the set angle relative to the dimming lifting bracket 5, the maximum contour circle A is tangent to the force-bearing surface 61 of the dimming motor 6.

[0043] The end of the toggle part 31 has a cylindrical surface 311, and the cylindrical surface 311 coincides with the maximum contour circle A. The toggle part 31 is provided with a contact curved surface 312 in contact with the force-bearing surface 61 of the dimming motor 6. The trajectory line of the contact position of the contact curved surface 312 and the force-bearing surface 61 is an involute, and the contact curved surface 312 is smoothly connected to the cylindrical surface 311. The end of the toggle part 31 is set to a structure of the cylindrical surface 311, and the contact between the toggle part 31 and the dimming motor 6 is smoother, preventing the dimming motor 6 from being scratched. Preferably, in order to protect the force-bearing surface 61 of the dimming motor 6, the contact curved surface 312 and the force-bearing surface 61 can be covered with an elastic pad structure such as a rubber pad.

[0044] There are two cylindrical surfaces 311 on the toggle part 31 , which are symmetrical along the rotation center of the toggle mechanism 3 . There are at least two contact curved surfaces 312 on the toggle part 31 , which are symmetrical along the rotation center of the toggle mechanism 3 .

[0045] The positioning mechanism 2 is equipped with a limit pin 7 for limiting the initial angle of the dimming motor 6. The limit pin 7, combined with the limit cavity and the initial positioning of the dimming motor 6, easily positions the dimming lift bracket 5 and the dimming motor 6 in their initial positions. Correspondingly, a groove is provided on the side of the toggle mechanism 3 to allow the dimming motor 6 to avoid the initial position.

[0046] A flange shaft 4 is fixed to the mounting base plate 1, and the toggle mechanism 3 is rotatably connected to the flange shaft 4. Specifically, a round head screw 9 is threadedly connected to the flange shaft 4. The toggle mechanism 3 has a through hole through which the round head screw 9 passes. The diameter of the stud of the round head screw 9 matches the diameter of the through hole. A gasket 10 is provided between the round head screw 9 and the toggle mechanism 3. The toggle mechanism 3 rotates relative to the round head screw 9, that is, the rotational freedom of the toggle mechanism 3 about the flange shaft 4 is not restricted.

[0047] The positioning mechanism 2 has a limiting cavity 21 , and the limiting cavity 21 matches the shape of the dimming lifting bracket 5 , thereby at least limiting the rotation of the dimming lifting bracket 5 .

[0048] Both the positioning mechanism 2 and the flange shaft 4 are provided with waist holes, and both the positioning mechanism 2 and the flange shaft 4 are fixed to the mounting base plate 1 by means of set screws 8 , which pass through the corresponding waist holes and are threadedly connected to the mounting base plate 1 .

[0049] Working principle:

[0050] Insert the dimming motor 6 into the hole of the dimming lifting bracket 5 first, as shown in the following figure: Figure 2 and Figure 3, and the force-bearing surface of the dimming motor 6 is pressed against the limit pin 7 to achieve the initial limit. Then, the toggle mechanism 3 is manually rotated, and the contact curved surface 312 and the cylindrical surface 311 at one end of the toggle part 21 contact the force-bearing surface 61 of the dimming motor 6 in turn. When the cylindrical surface 311 separates from the force-bearing surface 61 of the dimming motor 6, the dimming motor 6 and the dimming lifting bracket 5 are just locked in place. During this process, the toggle mechanism 3 rotates about 180 degrees. When the next set of dimming motors 6 and dimming lifting brackets 5 needs to be assembled, the contact curved surface 312 and the cylindrical surface 311 at the other end of the toggle mechanism 3 contact the force-bearing surface 61 of the dimming motor 6 in turn. The above steps are repeated. That is, the toggle mechanism 3 only needs to rotate 180 degrees to complete one assembly, which is efficient. Of course, in order to ensure that the assembly is in place, after rotating 180 degrees, the toggle mechanism 3 can be rotated again one circle or more to ensure that the dimming motor 6 and the dimming lifting bracket 5 are locked in place.

[0051] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A mechanism for ensuring the installation consistency of a vehicle light dimming motor and a bracket, characterized by: include: Install the bottom plate (1), A positioning mechanism (2), wherein the positioning mechanism (2) is mounted on the mounting base plate (1), and the positioning mechanism (2) is used to position the dimming lifting bracket (5); A toggle mechanism (3), the toggle mechanism (3) comprising a toggle portion (31), the toggle portion (31) being rotatably disposed on the mounting base plate (1) and used to drive the dimming motor (6) to rotate to a set angle relative to the dimming lifting bracket (5); The toggle portion (31) is disengaged from the dimming motor (6) when the dimming motor (6) rotates to a set angle relative to the dimming lifting bracket (5); A circle having the rotation center of the toggle mechanism (3) as its center and passing through the maximum contour of the toggle portion (31) is a maximum contour circle (A); when the dimming motor (6) rotates relative to the dimming lifting bracket (5) at a set angle, the maximum contour circle (A) is tangent to the force-bearing surface (61) of the dimming motor (6); The end of the toggle portion (31) has a cylindrical surface (311), and the cylindrical surface (311) coincides with the maximum contour circle (A); The toggle portion (31) is provided with a contact curved surface (312) in contact with the force-bearing surface (61) of the dimming motor (6); a trajectory line of the contact position between the contact curved surface (312) and the force-bearing surface (61) is an involute, and the contact curved surface (312) is smoothly connected to the cylindrical surface (311); There are two cylindrical surfaces (311) on the toggle portion (31), and the cylindrical surfaces (311) are symmetrical along the rotation center of the toggle mechanism (3); there are at least two contact curved surfaces (312) on the toggle portion (31), and the contact curved surfaces (312) are symmetrical along the rotation center of the toggle mechanism (3); The positioning mechanism (2) is provided with a limiting pin (7) for limiting the initial angle of the dimming motor (6); The positioning mechanism (2) has a limiting cavity (21), and the limiting cavity (21) matches the shape of the dimming lifting bracket (5), thereby at least limiting the rotation of the dimming lifting bracket (5).

2. The mechanism for ensuring the installation consistency of the automobile light dimming motor and the bracket according to claim 1, characterized in that: A flange shaft (4) is fixed on the mounting base plate (1), and the toggle mechanism (3) is rotatably connected to the flange shaft (4).

3. The mechanism for ensuring the installation consistency of the automobile light dimming motor and the bracket according to claim 1, characterized in that: The positioning mechanism (2) and the flange shaft (4) are both provided with waist holes. The positioning mechanism (2) and the flange shaft (4) are both fixed to the mounting base plate (1) by means of set screws (8). The set screws (8) pass through the corresponding waist holes and are threadedly connected to the mounting base plate (1).

Images