Car lamp frame connecting device

Abstract

The invention discloses an automobile lamp frame connecting device, which belongs to the technical field of automobile lamps and comprises a lamp shell, a main mounting leg and at least two auxiliary mounting legs are arranged on the back of the lamp shell, and a reference positioning hole is formed in the main mounting leg and used for being matched with a main positioning pin on an automobile frame to realize reference positioning of the lamp shell in the X direction, the Y direction and the Z direction. Each auxiliary mounting leg comprises a mounting base plate, and adjusting mounting holes and bolt via holes are formed in the mounting base plates, wherein the bolt via holes and the adjusting mounting holes are arranged at intervals. The pre-positioning groove located in the stress side is formed in the middle of the adjusting mounting hole and matched with the rod portion of the auxiliary positioning pin to form fitting supporting, in the initial stage of assembling, the structure can effectively bear the gravity and assembling counter force of the lamp shell, the lamp shell can keep a stable posture before bolts are fastened, continuous manual supporting is not needed, and the assembling efficiency is improved. Therefore, the hands of operators are liberated, and the operation convenience and efficiency of car lamp assembly are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile lamp, and particularly relates to a lamp frame connecting device. BACKGROUND

[0002] In the field of automobile manufacturing, as a key appearance part and functional part, the stability of the mounting structure of the lamp directly affects the lighting effect, appearance consistency and driving safety. The lamp is usually fixed by the mounting legs on the back of the lamp shell and the positioning pins, bolts and other structures on the body panel. However, due to the large weight of the lamp itself, the traditional auxiliary positioning structure is mostly a simple cylindrical pin, which lacks effective temporary limiting capacity, resulting in that the lamp is prone to sliding, tilting or shaking during assembly, and it is difficult to maintain a stable posture, which brings inconvenience to subsequent bolt fastening and affects the assembly efficiency.

[0003] To solve the above problems, the prior art proposes to distribute the weight of the lamp by setting a lamp frame, and to realize preliminary positioning by the structure of the positioning pin cooperating with the elastic support plate. However, the positioning pin of such structure is mostly a rigid cylindrical structure, and lacks limiting design for the stress side, which cannot effectively bear the gravity of the lamp to form a reliable temporary support, and still needs manual support during assembly. At the same time, its adjusting capacity is limited, and it is difficult to fully compensate for the manufacturing error of the body panel, resulting in insufficient assembly adaptability. SUMMARY

[0004] The purpose of the present application is to provide a lamp frame connecting device to solve the problem that the positioning pin in the traditional technology is mostly a rigid cylindrical structure, and lacks limiting design for the stress side, which cannot effectively bear the gravity of the lamp to form a reliable temporary support, and still needs manual support during assembly.

[0005] To achieve the above purpose, the present application adopts the following technical scheme: A lamp frame connecting device, comprising a lamp shell, the back of the lamp shell is provided with a main mounting leg and at least two auxiliary mounting legs, the main mounting leg is provided with a reference positioning hole, which is used for cooperating with the main positioning pin on the vehicle frame to realize three-dimensional reference positioning of the lamp shell in X, Y and Z directions, the auxiliary mounting leg comprises a mounting base plate, the mounting base plate is provided with an adjusting mounting hole and a bolt through hole arranged at intervals with the adjusting mounting hole, the bolt through hole is used for cooperating with the fixing bolt to fix the lamp shell on the vehicle frame; The adjusting mounting hole is a waist-shaped hole structure, the adjusting mounting hole is provided with an auxiliary positioning pin, the long axis directions of the adjusting mounting holes on the plurality of auxiliary mounting legs are consistent, and all are arranged along the width direction of the vehicle body; The middle part of the adjusting mounting hole is provided with a pre-positioning groove, the pre-positioning groove is located at the stress side when the lamp shell is hung on the main positioning pin and the auxiliary positioning pin, and is used for bearing the gravity of the lamp shell and the assembly reaction force to form a stable temporary limiting. The pre-positioning groove is provided with a smooth transition guide slope at both ends, and the width of the pre-positioning groove is greater than the short axis width of the adjusting mounting hole; The auxiliary positioning pin can enter the adjusting mounting hole through the pre-positioning groove and slide along the long axis direction, the rod part of the auxiliary positioning pin can be clamped into the pre-positioning groove, and temporary pre-positioning is formed by the fit and support of the pre-positioning groove and the auxiliary positioning pin. The adjusting mounting hole and the auxiliary positioning pin form an anti-disengagement structure to limit the auxiliary positioning pin from disengaging in the axial direction.

[0006] Preferably, the main mounting leg and the auxiliary mounting leg are integrally formed with the lamp shell, and the root of the mounting base plate is integrally formed with a reinforcing rib, and the reinforcing rib is arranged at least one along the length direction of the mounting base plate.

[0007] Preferably, the adjusting mounting hole includes a narrow opening section penetrating through the mounting base plate and a wide groove section inside the mounting base plate, and a limiting step surface is formed between the narrow opening section and the wide groove section.

[0008] Preferably, the auxiliary positioning pin includes a pin rod part and an anti-disengagement head part, the diameter of the anti-disengagement head part is greater than that of the pin rod part, the diameter of the anti-disengagement head part is smaller than the width of the wide groove section and greater than the width of the narrow opening section, and the limiting step surface and the anti-disengagement head part form a complete anti-disengagement structure to realize axial anti-disengagement.

[0009] Preferably, the pre-positioning groove is arranged in the middle of the narrow opening section, the width of the pre-positioning groove is smaller than the width of the wide groove section and greater than or equal to the diameter of the anti-disengagement head part, the anti-disengagement head part can enter the wide groove section through the pre-positioning groove, and the pin rod part is clamped into the pre-positioning groove to form pre-positioning.

[0010] Preferably, the narrow opening section and the pin rod part form a transition fit, the wide groove section and the anti-disengagement head part form a clearance fit, the top end of the anti-disengagement head part is provided with a guide conical surface, and the guide conical surface is matched with the guide slope of the pre-positioning groove.

[0011] Preferably, the outer edge of the narrow opening section of the adjusting mounting hole is provided with a hole opening chamfer, and the hole opening chamfer is consistent with the inclination direction of the guide slope.

[0012] Preferably, the inner wall of the pre-positioning groove is provided with anti-skid teeth, the anti-skid teeth are uniformly distributed along the circumferential direction of the pre-positioning groove, and are smoothly transitioned with the guide slope.

[0013] Preferably, a shock-absorbing rubber pad is arranged between the mounting base plate and the vehicle body sheet metal, the shock-absorbing rubber pad is provided with a relief hole corresponding to the adjusting mounting hole and a through hole corresponding to the bolt through hole, the edge of the relief hole is matched with the entrance end of the adjusting mounting hole, and the edge of the shock-absorbing rubber pad is provided with a sealing lip.

[0014] Preferably, the number of auxiliary mounting legs is 3, which are respectively symmetrically arranged at the upper middle and the lower two sides of the lamp shell.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1、In the present application, by setting a predetermined positioning groove on the force receiving side in the middle of the adjusting mounting hole, and cooperating with the rod part of the auxiliary positioning pin to form a close support, the structure can effectively receive the gravity and assembly reaction force of the lamp shell at the initial stage of assembly, so that the lamp shell can maintain a stable posture before the bolt is tightened, without the need for manual continuous support, thereby freeing the hands of the operator, and significantly improving the operation convenience and efficiency of the vehicle lamp assembly.

[0016] 2、In the present application, the adjusting mounting hole adopts a T-shaped cross-section design combining a narrow opening section and a wide groove section, cooperates with the auxiliary positioning pin having a pin rod part and a anti-dropping head part, and through the axial limiting cooperation of the limiting step surface and the anti-dropping head part, effectively blocks the path of the auxiliary positioning pin along the axial direction, ensuring the connection reliability of the auxiliary positioning pin during vehicle driving, and preventing positioning failure caused by vibration.

[0017] 3、In the present application, the long axis directions of the adjusting mounting holes on the plurality of auxiliary mounting legs are consistent and arranged along the width of the vehicle body, and cooperate with the transition of the pin rod part and the narrow opening section, so that the lamp shell can still be adjusted in the long axis direction after temporary positioning, effectively absorbing the dimensional errors in the manufacturing process of the vehicle body sheet metal and the lamp shell, ensuring the precise alignment of the bolt through hole and the vehicle body thread hole, reducing the assembly difficulty, and avoiding structural damage caused by hard assembly.

[0018] 4、In the present application, the anti-slip teeth provided on the inner wall of the predetermined positioning groove increase the friction force with the rod part of the auxiliary positioning pin, further enhancing the stability of temporary positioning, reducing the shaking during assembly, and at the same time, the adaptive design of the guide inclined surface, the hole opening chamfer and the guide conical surface forms a continuous and smooth guide channel, reduces the insertion resistance of the auxiliary positioning pin, and makes the assembly process more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic diagram of a vehicle lamp frame connecting device proposed in the present application; Figure 2 It is a separating state schematic diagram of an adjusting mounting hole and an auxiliary positioning pin of a vehicle lamp frame connecting device proposed in the present application; Figure 3 It is a limiting step surface structure schematic diagram of a vehicle lamp frame connecting device proposed in the present application; Figure 4 It is a cooperating state schematic diagram of an adjusting mounting hole and an auxiliary positioning pin of a vehicle lamp frame connecting device proposed in the present application; Figure 5A schematic view of a shock-absorbing rubber pad and sealing lip structure of a vehicle lamp frame connecting device according to the present application.

[0020] In the figure: 1, lamp shell; 2, main mounting leg; 3, auxiliary mounting leg; 4, mounting base plate; 5, reinforcing rib; 6, adjusting mounting hole; 7, narrow opening section; 8, wide slot section; 9, limiting step surface; 10, pre-positioning groove; 11, guide inclined surface; 12, auxiliary positioning pin; 13, pin stem portion; 14, anti-disengagement head; 15, guide cone surface; 16, orifice chamfer; 17, shock-absorbing rubber pad; 18, sealing lip; 19, bolt via hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0022] Reference Figures 1-5 A vehicle lamp frame connecting device, comprising a lamp shell 1, the back of the lamp shell 1 is provided with a main mounting leg 2 and at least two auxiliary mounting legs 3, based on force balance design, the number of auxiliary mounting legs 3 is three, which are symmetrically arranged at the upper middle and lower sides of the lamp shell 1, so as to form a three-point support structure when the lamp shell 1 is hung and buckled, thereby dispersing the gravity in the assembly process and avoiding the positioning deviation caused by the force concentration of a single mounting leg.

[0023] A reference positioning hole is formed in the main mounting leg 2, which is used for cooperating with a main positioning pin on a vehicle frame to realize three-direction reference positioning of the lamp shell 1 in X, Y and Z directions, the inner wall of the reference positioning hole is finely ground, and the main positioning pin is designed to adopt transition fit, so as to limit the three-direction displacement through the tight fit relationship on the structure, provide accurate reference for subsequent auxiliary positioning, and ensure the overall assembly accuracy.

[0024] The auxiliary mounting leg 3 comprises a mounting base plate 4, the main mounting leg 2 and the auxiliary mounting leg 3 are integrally formed with the lamp shell 1, and a modified PP material injection molding integral molding process is adopted, which takes into account the lightweight requirement and structural rigidity of the device, eliminates the positioning error caused by the assembly gap, and improves the connection stability, the root of the mounting base plate 4 is integrally formed with a reinforcing rib 5, the reinforcing rib 5 is arranged at least one along the length direction of the mounting base plate 4, the interval distance is designed according to the length and stress distribution characteristics of the mounting base plate 4, so as to ensure uniform dispersion of fastening force and vibration load and prevent the base plate from bending and deforming.

[0025] The mounting base plate 4 has an adjustment mounting hole 6 and bolt through holes 19 spaced apart from the adjustment mounting hole 6. The spaced arrangement makes the tightening force of the fixing bolt and the positioning force of the auxiliary positioning pin 12 form a cooperative force system. The bolt through holes 19 are used to cooperate with the fixing bolt to fix the lamp housing 1 on the vehicle frame. The bolt through holes 19 have a chamfered edge to reduce the insertion resistance of the fixing bolt and avoid structural damage caused by rigid friction between the bolt and the hole wall.

[0026] The adjustment mounting hole 6 has an oblong shape and is fitted with an auxiliary positioning pin 12. The adjustment mounting holes 6 on the multiple auxiliary mounting legs 3 have the same long axis direction and are arranged along the width of the vehicle body. The long axis direction is adapted to the width of the vehicle body, providing adjustment space for dimensional errors during the vehicle body assembly process. The short axis direction is adapted to the structure of the subsequent auxiliary positioning pin 12, limiting invalid displacement in non-adjustment directions and ensuring adjustment accuracy.

[0027] The middle of the adjustment mounting hole 6 is provided with a pre-positioning groove 10. The pre-positioning groove 10 is located on the force-bearing side when the lamp housing 1 is hooked onto the main positioning pin and the auxiliary positioning pin 12. This side is the main bearing surface of gravity and assembly reaction force during the assembly of the lamp housing 1. The groove structure forms a targeted support to bear the gravity and assembly reaction force of the lamp housing 1 to form a stable temporary limit. The temporary limit can free the operator's hands, provide convenient operating conditions for the subsequent installation of fixing bolts, and improve assembly efficiency.

[0028] The pre-positioning groove 10 located at the upper part of the lamp housing 1 opens towards the inside of the lamp housing 1, and the pre-positioning groove 10 located at the lower part of the lamp housing 1 opens towards the outside of the lamp housing 1. This is adapted to the force direction when the lamp housing is hooked. By utilizing the weight of the lamp housing itself, the upper part forms a hook-type inner hook and the lower part forms a fulcrum-type outer support. This automatically generates a centering torque when the lamp housing is hooked, so that the lamp housing 1 fits tightly against the vehicle body mounting surface, achieving a stable hooking form with the upper hook and the lower press.

[0029] Both ends of the pre-positioning groove 10 are provided with smooth transition guide slopes 11. The guide slopes 11 adopt an arc transition design to avoid stress concentration and reduce the contact resistance when the auxiliary positioning pin 12 slides in. The width of the pre-positioning groove 10 is greater than the short axis width of the adjustment mounting hole 6, which ensures that the anti-detachment head 14 of the auxiliary positioning pin 12 can pass smoothly and avoids lateral shaking after positioning, thus balancing passability and stability.

[0030] The auxiliary positioning pin 12 can enter the adjustment mounting hole 6 through the pre-positioning groove 10 and slide along its long axis. During the sliding process, the complementary structure of the guide inclined surface 11 and the guide cone surface 15 of the auxiliary positioning pin 12 is used to achieve smooth guidance and reduce the assembly difficulty. The rod of the auxiliary positioning pin 12 can be inserted into the pre-positioning groove 10. The temporary pre-positioning is formed by the fit between the pre-positioning groove 10 and the auxiliary positioning pin 12. The fit support adopts a surface contact design to increase the force-bearing area, improve the stability of the pre-positioning, and prevent the lamp housing 1 from shifting during the assembly process.

[0031] The adjustment mounting hole 6 and the auxiliary positioning pin 12 cooperate to form an anti-detachment structure, which restricts the auxiliary positioning pin 12 from detaching along the axial direction. The anti-detachment structure avoids positioning failure caused by vibration during vehicle operation by mechanical limiting, thereby improving the reliability of the device.

[0032] The adjustment mounting hole 6 includes a narrow opening 7 that penetrates the mounting base plate 4 and a wide groove 8 located inside the mounting base plate 4. A limiting step surface 9 is formed between the narrow opening 7 and the wide groove 8. The limiting step surface 9 is chamfered to eliminate stress concentration caused by sharp edges. At the same time, it fits tightly with the anti-detachment head 14 of the auxiliary positioning pin 12. Through the axial limiting cooperation between the limiting step surface 9 and the anti-detachment head 14, the path of the auxiliary positioning pin 12 to detach along the axial direction is blocked, ensuring the reliability of the connection.

[0033] The auxiliary positioning pin 12 includes a pin rod portion 13 and an anti-detachment head 14. The diameter of the anti-detachment head 14 is larger than the diameter of the pin rod portion 13. The diameter of the anti-detachment head 14 is smaller than the width of the wide groove section 8 and larger than the width of the narrow opening section 7. This ensures that the anti-detachment head 14 can enter the wide groove section 8 for assembly, and also achieves the anti-detachment function through the dimensional difference with the narrow opening section 7. The limiting step surface 9 and the anti-detachment head 14 cooperate to form a complete anti-detachment structure to achieve axial anti-detachment. The complete anti-detachment structure combines transition fit and mechanical limiting, taking into account both assembly convenience and usage stability.

[0034] The pre-positioning groove 10 is located in the middle of the narrow section 7. The width of the pre-positioning groove 10 is less than the width of the wide section 8 and greater than or equal to the diameter of the anti-detachment head 14, ensuring that the anti-detachment head 14 can smoothly pass through the groove and enter the wide section 8. At the same time, the fit between the groove width and the anti-detachment head 14 prevents radial movement after positioning. The anti-detachment head 14 can enter the wide section 8 through the pre-positioning groove 10. The pin part 13 is engaged in the pre-positioning groove 10 to form a pre-position. In the pre-positioned state, the pin part 13 forms a frictional engagement with the anti-slip teeth on the inner wall of the groove, further improving the stability of the temporary positioning.

[0035] The narrow section 7 and the pin section 13 form a transition fit. The transition fit takes into account both positioning stability and smooth adjustment. It avoids shaking caused by excessive looseness and prevents the fit from affecting error adjustment by excessive tightness. The wide groove section 8 and the anti-detachment head 14 form a clearance fit. The clearance fit provides the anti-detachment head 14 with room to move, ensuring that the auxiliary positioning pin 12 slides smoothly along the long axis of the adjustment mounting hole 6 without interference. The top of the anti-detachment head 14 is provided with a guide cone surface 15. The guide cone surface 15 is adapted to the guide slope surface 11 of the pre-positioning groove 10. The adaptation design makes the two form a continuous guide channel, guiding the anti-detachment head 14 to slide smoothly into the pre-positioning groove 10 and reducing assembly resistance.

[0036] The outer edge of the narrow section 7 of the adjustment mounting hole 6 is provided with a chamfer 16. The chamfer 16 is in the same direction as the guide slope 11. The same direction of inclination forms a continuous guide path, avoiding guide dead angles and further improving the smoothness of the insertion of the auxiliary positioning pin 12.

[0037] The inner wall of the pre-positioning groove 10 is provided with anti-slip teeth. The anti-slip teeth are evenly distributed along the circumference of the pre-positioning groove 10. The even distribution ensures balanced friction and avoids structural damage caused by excessive local force. It also smoothly transitions with the guide slope 11. The smooth transition design avoids the formation of sharp edges on the anti-slip teeth, reduces the resistance when the auxiliary positioning pin 12 slides in, and prevents stress concentration.

[0038] A shock-absorbing rubber pad 17 is provided between the mounting base plate 4 and the vehicle body sheet metal. The shock-absorbing rubber pad 17 is made of EPDM material, which has both good shock absorption performance and weather resistance, and is suitable for the vibration environment during vehicle operation and outdoor use scenarios. The shock-absorbing rubber pad 17 has clearance holes corresponding to the adjustment mounting holes 6 and through holes corresponding to the bolt through holes 19. The edge of the clearance hole is designed to fit with the inlet end of the adjustment mounting hole 6 to avoid the shock-absorbing rubber pad 17 affecting the sliding adjustment of the auxiliary positioning pin 12, while ensuring sealing performance. The edge of the clearance hole fits with the inlet end of the adjustment mounting hole 6. The edge of the shock-absorbing rubber pad 17 is provided with a sealing lip 18. The sealing lip 18 is designed to be elastic and fits tightly with the vehicle body sheet metal to prevent moisture, dust and other impurities from entering the installation gap, thus playing a sealing and protective role, while compensating for the small gaps on the mounting surface.

[0039] During assembly, the operator aligns the main mounting leg 2 on the back of the lamp housing 1 with the main positioning pin on the vehicle frame, so that the reference positioning hole cooperates with the main positioning pin to achieve three-way reference positioning of the lamp housing 1 in the X, Y and Z directions.

[0040] Subsequently, the adjustment mounting holes 6 on each auxiliary mounting leg 3 are aligned with the auxiliary positioning pins 12 on the body sheet metal. The chamfer 16 at the entrance of the adjustment mounting hole 6 and the guide slopes 11 on both sides of the pre-positioning groove 10, along with the guide cone surface 15 at the top of the auxiliary positioning pin 12, allow the auxiliary positioning pin 12 to smoothly enter the adjustment mounting hole 6.

[0041] During the process of the auxiliary positioning pin 12 entering the adjustment mounting hole 6, its anti-detachment head 14 enters the wide groove section 8 through the pre-positioning groove 10, while the pin rod part 13 is inserted into the pre-positioning groove 10 under the guidance of the guide slope 11. With the help of the structural shape of the pre-positioning groove 10 and the friction of the anti-slip teeth, the lamp housing 1 forms a stable temporary pre-position under the action of gravity and assembly reaction force. At this time, the lamp housing 1 can maintain a fixed posture without manual support.

[0042] After the temporary positioning is completed, the operator can finely adjust the position of the lamp housing 1 along the long axis of the adjustment mounting hole 6 according to the actual assembly position of the lamp housing 1 to compensate for the assembly error of the body sheet metal.

[0043] After the position is adjusted to the optimal state, the fixing bolt is screwed into the threaded hole of the body sheet metal through the bolt through hole 19 to achieve the final fastening of the lamp housing 1.

[0044] During the fastening process, the shock-absorbing rubber pad 17 between the mounting base plate 4 and the body sheet metal is compressed, and its sealing lip 18 fits tightly against the body sheet metal, thereby achieving the dual functions of shock absorption and sealing protection.

[0045] Ultimately, through the benchmark positioning of the main positioning pin, the temporary limiting and adjustment of the auxiliary positioning pin 12, and the tightening effect of the fixing bolts, this device achieves precise, stable, and reliable installation of the lamp housing 1.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A vehicle headlight frame connecting device, comprising a headlight housing (1), wherein the back of the headlight housing (1) is provided with a main mounting leg (2) and at least two auxiliary mounting legs (3), and the main mounting leg (2) is provided with a reference positioning hole for cooperating with a main positioning pin on the vehicle frame to achieve three-way reference positioning of the headlight housing (1) in the X, Y, and Z directions, characterized in that, The auxiliary mounting leg (3) includes a mounting base plate (4), on which an adjustment mounting hole (6) and bolt through holes (19) are arranged at intervals from the adjustment mounting hole (6). The bolt through holes (19) are used to cooperate with the fixing bolts to fix the lamp housing (1) on the vehicle frame. The adjustment mounting hole (6) is a waist-shaped hole structure. The adjustment mounting hole (6) is equipped with an auxiliary positioning pin (12). The adjustment mounting holes (6) on the multiple auxiliary mounting legs (3) have the same long axis direction and are arranged along the width direction of the vehicle body. The adjustment mounting hole (6) is provided with a pre-positioning groove (10) in the middle. The pre-positioning groove (10) is located on the force-bearing side when the lamp housing (1) is hooked onto the main positioning pin and the auxiliary positioning pin (12). It is used to bear the weight of the lamp housing (1) and the assembly reaction force to form a stable temporary limit. Both ends of the prepositioning groove (10) are provided with smooth transition guide slopes (11), and the width of the prepositioning groove (10) is greater than the short axis width of the adjustment mounting hole (6). The auxiliary positioning pin (12) can enter the adjustment mounting hole (6) through the prepositioning groove (10) and slide along its long axis. The rod part of the auxiliary positioning pin (12) can be inserted into the prepositioning groove (10). The temporary prepositioning is formed by the fit between the prepositioning groove (10) and the auxiliary positioning pin (12). The adjustment mounting hole (6) and the auxiliary positioning pin (12) cooperate to form an anti-detachment structure, which restricts the auxiliary positioning pin (12) from detaching axially.

2. The vehicle headlight frame connecting device according to claim 1, characterized in that, The main mounting leg (2) and the auxiliary mounting leg (3) are integrally formed with the lamp housing (1). The root of the mounting base plate (4) is integrally formed with a reinforcing rib (5), and at least one reinforcing rib (5) is arranged at intervals along the length direction of the mounting base plate (4).

3. The vehicle headlight frame connecting device according to claim 1, characterized in that, The adjustment mounting hole (6) includes a narrow opening (7) that penetrates the mounting substrate (4) and a wide groove (8) located inside the mounting substrate (4), and a limiting step surface (9) is formed between the narrow opening (7) and the wide groove (8).

4. The vehicle headlight frame connecting device according to claim 3, characterized in that, The auxiliary positioning pin (12) includes a pin rod part (13) and an anti-detachment head (14). The diameter of the anti-detachment head (14) is larger than the diameter of the pin rod part (13). The diameter of the anti-detachment head (14) is smaller than the width of the wide groove section (8) and larger than the width of the narrow opening section (7). The limiting step surface (9) and the anti-detachment head (14) cooperate to form a complete anti-detachment structure to achieve axial anti-detachment.

5. A vehicle headlight frame connecting device according to claim 4, characterized in that, The prepositioning groove (10) is located in the middle of the narrow section (7). The width of the prepositioning groove (10) is less than the width of the wide section (8) and greater than or equal to the diameter of the anti-detachment head (14). The anti-detachment head (14) can enter the wide section (8) through the prepositioning groove (10). The pin (13) is engaged in the prepositioning groove (10) to form a preposition.

6. A vehicle headlight frame connecting device according to claim 4, characterized in that, The narrow section (7) forms a transition fit with the pin (13), the wide groove section (8) forms a clearance fit with the anti-detachment head (14), the top of the anti-detachment head (14) is provided with a guide cone surface (15), and the guide cone surface (15) is adapted to the guide slope (11) of the prepositioning groove (10).

7. A vehicle headlight frame connecting device according to claim 3, characterized in that, The outer edge of the narrow section (7) of the adjustment mounting hole (6) is provided with a chamfer (16), and the chamfer (16) is consistent with the inclination direction of the guide slope (11).

8. A vehicle headlight frame connecting device according to claim 1, characterized in that, The inner wall of the prepositioning groove (10) is provided with anti-slip teeth, which are evenly distributed along the circumference of the prepositioning groove (10) and smoothly transition with the guide slope (11).

9. A vehicle headlight frame connecting device according to claim 1, characterized in that, A shock-absorbing rubber pad (17) is provided between the mounting base plate (4) and the body sheet metal. The shock-absorbing rubber pad (17) has a clearance hole corresponding to the adjustment mounting hole (6) and a through hole corresponding to the bolt through hole (19). The edge of the clearance hole fits with the inlet end of the adjustment mounting hole (6). The edge of the shock-absorbing rubber pad (17) is provided with a sealing lip (18).

10. A vehicle headlight frame connecting device according to claim 1, characterized in that, The number of auxiliary mounting legs (3) is 3, which are symmetrically arranged in the upper middle and lower sides of the lamp housing (1).

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