Front machine cover assembling and positioning tool

By designing a front hood assembly and positioning fixture, the fender and front hood are precisely positioned using the fixture frame and multiple positioning mechanisms. This solves the problem of inaccurate assembly in existing technologies, improves production efficiency and product quality consistency, and avoids fender damage.

CN224074242UActive Publication Date: 2026-04-03SHANDONG QIFENG NEW ENERGY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-10
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In the existing technology, the assembly of the hood and fenders lacks a precise positioning reference, resulting in low production efficiency and unstable product quality. In particular, the fenders are easily damaged and it is difficult to meet the DTS relationship requirements of the design standard.

Method used

Design a front hood assembly and positioning fixture, including a fixture frame, a fender positioning mechanism, a water channel positioning mechanism, and a water tank beam positioning mechanism. These mechanisms are used to accurately position the fender and front hood, ensuring the consistency of the DTS relationship and product quality.

Benefits of technology

It achieves precise positioning of the hood and fenders, improves production efficiency, avoids human error, ensures consistent product quality, prevents fender damage, and meets design standards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile cover assembly, and particularly relates to a front cover assembly positioning tool which comprises a tool rack, fender positioning mechanisms are arranged on the two sides of the tool rack in the length direction, and the fender positioning mechanisms on the two sides are used for positioning and limiting fenders on the two sides respectively. A gutter channel positioning mechanism and a water tank cross beam positioning mechanism are arranged on the two sides of the tool rack in the width direction correspondingly, and the gutter channel positioning mechanism and the water tank cross beam positioning mechanism are matched with a water tank cross beam and a gutter channel for positioning correspondingly, so that overall positioning of the tool rack is achieved. According to the utility model, the fender and the front cover mounting bracket can be accurately positioned. When an employee operates, the fender and the front cover mounting bracket only need to be placed on the harness and are fastened, so that the front-end DTS vehicle body clearance surface difference can meet the design standard requirement, personal errors are effectively avoided, the production efficiency is greatly improved, and the product quality consistency is remarkably optimized.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive hood assembly technology, and specifically relates to a front hood assembly and positioning fixture. Background Technology

[0002] Currently, some car models use plastic for both the hood and fenders. Due to the numerous mounting points and long assembly cycle of the fenders, they cannot be assembled on the friction chain in the final assembly workshop. This results in the fenders being assembled without the hood (i.e., the fenders must be assembled first, and the hood last), leading to a lack of reference values ​​for the Y-axis dimensions during fender assembly. Furthermore, due to shape and space limitations, the hood of this model cannot use traditional hinge fastening methods and must be secured with snap-fit ​​fasteners. To ensure the DTS (Direct Surface Mount Technology) relationship requirements for the hood and fenders, the relative positions of the fender and hood snap-fit ​​fasteners must be accurate and consistent.

[0003] Currently, fenders are assembled manually without a fixed reference point. Therefore, if the fender, which lacks precise positioning, is used as the assembly reference during the hood assembly process, the front DTS (surface clearance difference) will fail to meet design standards. Furthermore, the DTS status of each assembly lacks consistency, making it difficult to guarantee stable product quality.

[0004] This operating mode results in relatively low production efficiency. Furthermore, during the process of adjusting the assembly, due to frequent operations and a lack of effective protective measures, the fenders are highly susceptible to bumps and damage, further affecting the product's appearance and overall quality. Utility Model Content

[0005] This utility model provides a front hood assembly and positioning fixture, which can solve the problems pointed out in the background art.

[0006] A front hood assembly and positioning fixture includes a fixture frame. Both sides of the fixture frame along its length are provided with fender positioning mechanisms, which are used for positioning and limiting the fenders on both sides, respectively. Both sides of the fixture frame along its width are provided with a water trough positioning mechanism and a water tank beam positioning mechanism, respectively. The overall positioning of the fixture frame is achieved by the water trough positioning mechanism and the water tank beam positioning mechanism cooperating with the water tank beam and the water trough, respectively.

[0007] Preferably, the fender positioning mechanism includes at least two fender positioning components arranged along the width direction of the tooling frame, and the fender positioning components include a fender positioning connecting block and a fender positioning contour block.

[0008] Preferably, the fender positioning mechanism further includes a fender arc angle positioning component, which includes a fender arc angle positioning connecting block and a fender arc-shaped positioning contour block.

[0009] Preferably, the water trough positioning mechanism includes at least two water trough positioning components arranged along the length of the tooling frame. Each water trough positioning component includes a water trough positioning connecting block and a water trough positioning element. The lower end of the water trough positioning element contacts and positions itself in contact with the water trough, and is positioned with the water trough by a water trough positioning pin.

[0010] Preferably, the water tank beam positioning mechanism includes at least two water tank beam positioning components arranged along the length of the tooling frame. Each water tank beam positioning component includes a water tank beam positioning connecting block and a water tank beam positioning element. The lower end of the water tank beam positioning element contacts and positions itself with the water tank beam, and is positioned with the water tank beam through a water tank beam positioning pin.

[0011] Preferably, the water tank beam positioning component is further provided with a water tank beam contact support, the lower end of which contacts and positions itself against the upper end face of the water tank beam and is located between the tooling frame and the water tank beam.

[0012] Preferably, the tooling frame has two corners on its inner side respectively provided with a water trough contact support, the lower end of the water trough contact support is in contact with the upper end surface of the water trough for positioning, and the water trough contact support is located between the tooling frame and the water trough.

[0013] Preferably, the tooling frame is provided with a plurality of cover bracket positioning components for positioning the cover bracket.

[0014] Preferably, the hood support positioning assembly includes a hood support positioning connecting block and a hood support positioning block.

[0015] Beneficial Effects: This utility model provides a front hood assembly and positioning fixture. This fixture, using specialized tools, precisely positions the fender and the front hood mounting bracket. During operation, employees only need to place the fender and the front hood mounting bracket onto the fixture and tighten them to ensure that the surface difference of the front DTS body clearance meets design standards. The entire process requires no secondary adjustments by employees, effectively avoiding human error, greatly improving production efficiency, and significantly optimizing product quality consistency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the use of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model (front view).

[0018] Figure 3 This is a structural schematic diagram of the present invention (reverse side).

[0019] Explanation of reference numerals in the attached figures:

[0020] The diagram labels are as follows: Tooling frame 1; Fender positioning assembly 2; Fender positioning connecting block 21; Fender positioning contour block 22; Water channel contact support 23; Fender arc angle positioning assembly 3; Fender arc angle positioning connecting block 31; Fender arc positioning contour block 32; Water channel positioning assembly 4; Water channel positioning connecting block 41; Water channel positioning component 42; Water channel positioning pin 43; Water tank beam positioning assembly 5; Water tank beam positioning connecting block 51; Water tank beam positioning component 52; Water tank beam positioning pin 53; Water tank beam contact support 54; Hood bracket positioning assembly 6; Hood bracket positioning connecting block 61; Hood bracket positioning block 62; Fender 7; Water channel 8; Water tank beam 9; Hood bracket 10. Detailed Implementation

[0021] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0022] Example 1:

[0023] like Figure 1-2 As shown in the figure, the present invention provides a front hood assembly and positioning fixture, including a fixture frame 1. The fixture frame 1 is provided with fender positioning mechanisms on both sides in the length direction. The fender positioning mechanisms on both sides are used for positioning and limiting the fenders 7 on both sides respectively. The fixture frame 1 is provided with a water trough positioning mechanism and a water tank beam positioning mechanism on both sides in the width direction. The water trough positioning mechanism and the water tank beam positioning mechanism cooperate with the water tank beam 9 and the water trough 8 respectively to achieve the overall positioning of the fixture frame 1.

[0024] Specifically, the fender positioning mechanism includes at least two fender positioning components 2 arranged along the width direction of the tooling frame 1. The fender positioning component 2 includes a fender positioning connecting block 21 and a fender positioning contour block 22.

[0025] Specifically, the fender positioning mechanism also includes a fender arc angle positioning component 3, which is used for contact positioning of the arc angle of the fender 7. The fender arc angle positioning component 3 includes a fender arc angle positioning connecting block 31 and a fender arc-shaped positioning contour block 32. Both the fender positioning contour block 22 and the fender arc-shaped positioning contour block 32 are contour structures, and the contact positioning surface matches the contact surface of the fender.

[0026] Specifically, the water trough positioning mechanism includes at least two water trough positioning components 4 arranged along the length of the tooling frame 1. Each water trough positioning component 4 includes a water trough positioning connecting block 41 and a water trough positioning element 42. The lower end of the water trough positioning element 42 contacts and positions the water trough 8, and is positioned with the water trough 8 by a water trough positioning pin 43.

[0027] Specifically, the water tank beam positioning mechanism includes at least two water tank beam positioning components 5 arranged along the length of the tooling frame 1. Each water tank beam positioning component 5 includes a water tank beam positioning connecting block 51 and a water tank beam positioning element 52. The lower end of the water tank beam positioning element 52 contacts and positions the water tank beam 9, and is positioned with the water tank beam 9 by a water tank beam positioning pin 53.

[0028] In some embodiments, the water tank beam positioning member 52 is further provided with a water tank beam contact support 54, the lower end of which contacts and positions the upper end face of the water tank beam 9, and is located between the tooling frame 1 and the water tank beam 9.

[0029] In some embodiments, a water trough contact support 23 is provided at each of the two inner corners of the tooling frame 1. The lower end of the water trough contact support 23 contacts and positions itself in contact with the upper end surface of the water trough 8. The water trough contact support 23 is located between the tooling frame 1 and the water trough 8.

[0030] In some embodiments, the tooling frame 1 is provided with a plurality of cover bracket positioning components 6 for positioning the cover bracket 10.

[0031] Specifically, the hood bracket positioning assembly 6 includes a hood bracket positioning connecting block 61 and a hood bracket positioning block 62, wherein the bracket positioning block 62 is a cuboid block.

[0032] It should be noted that all of the above positioning connecting blocks can be L-shaped connecting blocks. Each L-shaped connecting block has several connecting holes on both connecting ends, allowing for fine-tuning of the positioning position.

[0033] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A front hood assembly positioning fixture, characterized by: The utility model provides a kind of fender positioning mechanism, including tooling frame (1), both sides of the length direction of the tooling frame (1) are equipped with fender positioning mechanism, both sides fender positioning mechanism are used for the positioning of both sides fender respectively, limiting;Two sides of the width direction of the tooling frame (1) are equipped with water tank crossbeam positioning mechanism and water channel positioning mechanism respectively, and the overall positioning of tooling frame (1) is realized by water tank crossbeam positioning mechanism and water channel positioning mechanism respectively with water tank crossbeam and water channel cooperation positioning.

2. The front hood assembly positioning fixture according to claim 1, wherein: The fender positioning mechanism includes at least two fender positioning components (2) arranged along the width direction of the tooling frame (1), and the fender positioning component (2) includes a fender positioning connecting block (21) and a fender positioning profiling block (22).

3. The front hood assembly positioning fixture of claim 2, wherein: The fender positioning mechanism further includes a fender arc corner positioning component (3), and the fender arc corner positioning component (3) includes a fender arc corner positioning connecting block (31) and a fender arc positioning profiling block (32).

4. The front cowl assembly positioning fixture of Claim 1, wherein: The water channel positioning mechanism includes at least two water channel positioning components (4) arranged along the length direction of the tooling frame (1), and the water channel positioning component (4) includes a water channel positioning connecting block (41) and a water channel positioning piece (42), the lower end of the water channel positioning piece (42) is in contact with the water channel and is positioned by a water channel positioning pin (43).

5. The front cowl assembly positioning fixture of Claim 1, wherein: The water tank crossbeam positioning mechanism includes at least two water tank crossbeam positioning components (5) arranged along the length direction of the tooling frame (1), and the water tank crossbeam positioning component (5) includes a water tank crossbeam positioning connecting block (51) and a water tank crossbeam positioning piece (52), the lower end of the water tank crossbeam positioning piece (52) is in contact with the water tank crossbeam and is positioned by a water tank crossbeam positioning pin (53).

6. A front bonnet assembly positioning fixture according to claim 5, wherein: The water tank crossbeam positioning piece (52) is further provided with a water tank crossbeam contact support (54), the lower end of the water tank crossbeam contact support (54) is in contact with the upper end surface of the water tank crossbeam and is positioned between the tooling frame (1) and the water tank crossbeam.

7. The front cover assembly positioning fixture of any one of claims 1-6, wherein: The tooling frame (1) is further provided with a water channel contact support (23) at both corners of the inner side, the lower end of the water channel contact support (23) is in contact with the upper end surface of the water channel and is positioned between the tooling frame (1) and the water channel.

8. The front cover assembly positioning fixture of any one of claims 1-6, wherein: The tooling frame (1) is further provided with a hood support positioning component (6) for positioning the hood support.

9. The front cowl assembly positioning fixture of Claim 8, wherein: The hood support positioning component (6) includes a hood support positioning connecting block (61) and a hood support positioning block (62).