Vehicle door fixing assistive device

The design of elastically limited door locks and door lock installation buckles solves the problem of loose fixation of car doors during the painting process, improves the stability of car doors during the painting process and the painting quality, improves assembly efficiency and reduces quality risks.

CN223440152UActive Publication Date: 2025-10-17DONGFENG OFF ROAD VEHICLE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422527961.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-10-17
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

The traditional door painting process lacks effective fixing measures, resulting in door swinging, which affects spray uniformity and electrophoretic coverage, reduces assembly efficiency and increases quality risks.

Method used

Elastic limiting door locks and door lock installation catches are used to fix the door to the body-in-white through positioning mounting screw holes and elastic limiting mechanisms to ensure the stability and integrity of the door during the painting process.

Benefits of technology

It improves the stability and coating quality of the car door painting process, reduces spray omissions and electrophoresis unevenness, improves assembly efficiency, avoids car door swinging and bumps, and ensures the consistency of the coating effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223440152U_ABST
    Figure CN223440152U_ABST
Patent Text Reader

Abstract

The utility model discloses a vehicle door fixing assistive device, which comprises an elastic limit door lock (1) and a door lock mounting lock catch (2), the elastic limit door lock (1) comprises a process door lock base (11), the process door lock base (11) is provided with a plurality of positioning mounting screw holes, the upper part of each positioning mounting screw hole is provided with a positioning mounting inner stud (12), and the door lock mounting lock catch (2) is provided with a positioning mounting inner stud (12). The positioning installation screw hole and the positioning installation inner stud (12) coincide with a door lock installation hole in a vehicle door in position, an elastic limiting mechanism (13) and a limiting block (17) are arranged at the top of the technological door lock base (11), a reinforcing rib (21) is arranged in the middle of the door lock installation lock catch (2), and an installation thread (22) is arranged at the tail of the door lock installation lock catch (2). The device is convenient to mount and dismount, low in manufacturing cost and capable of being recycled, vehicle door assembling and coating production efficiency is improved, and safety and quality hidden dangers such as vehicle door swing and collision damage in the body-in-white transferring process are eliminated.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile door coating, more particularly, relate to a kind of door fixing auxiliary tool. BACKGROUND

[0002] Military off-road vehicle due to its special use environment and performance requirements, the strength and durability of the body structure have very high requirements.In the manufacturing process, the coating quality of the body assembly directly affects the appearance and corrosion resistance of the vehicle.In order to ensure the integrity of the door assembly and the body assembly during coating, the door assembly needs to be assembled on the body before coating.In the traditional assembly method, the door assembly is fixed on the body assembly through the hinge side of the door, and the other side lacks effective fixing measures.During the coating process, the door may swing due to operation or body movement, resulting in inconsistent gap between the door and the body, affecting the coating quality, and the free swing of the door may affect the uniformity of the robot spraying, especially at the edge of the door and the joint with the body, which may cause spraying omission or uneven coating thickness.During the electrophoresis process, the swing of the door may cause the electrophoresis liquid to fail to fully cover the surface of the door, affecting the corrosion resistance.Due to the lack of effective fixing measures, the assembly worker needs additional time and effort to ensure the stability of the door during coating, reducing the assembly efficiency.In order to solve the above problems, some temporary fixing schemes have been proposed, but these schemes often have the problems of unstable fixing, complex operation or affecting the coating effect.For example, using adhesive tape or rope to fix the door may lose adhesion or strength in high temperature or chemical environment, and using traditional clamps or supports may leave marks or affect the operation of the spraying robot. SUMMARY

[0003] In view of the above defects or improvement needs of the prior art, the utility model provides a door fixing auxiliary tool, which adopts door lock mounting lock buckle, matches elastic limit door lock, installs left / right door on body welding assembly, and has the advantages of simple installation and disassembly, low manufacturing cost, and repeated cycle utilization, improves door assembly and coating production efficiency, eliminates the safety and quality hidden troubles such as door swing and bumping during body transfer process.

[0004] In order to achieve the above purpose, the utility model provides a door fixing auxiliary tool, which includes elastic limit door lock and door lock mounting lock buckle, wherein,

[0005] The elastic limit door lock comprises a process door lock base, the process door lock base is provided with a plurality of positioning installation screw holes, each positioning installation screw hole is provided with a positioning installation inner stud at the upper portion, the positioning installation screw hole and the positioning installation inner stud are coincided with the door lock installation hole on the door, the top of the process door lock base is provided with an elastic limit mechanism, and a limiting block for preventing the elastic limit mechanism from swinging due to the arm length is arranged on the side of the elastic limit mechanism and fixedly connected with the process door lock base.

[0006] The door lock installation lock catch is provided with a reinforcing rib in the middle and a mounting thread at the tail, which is used for fastening the door lock installation lock catch on the mounting point of the body-in-white door frame.

[0007] Further, the door lock installation lock catch is matched and designed according to the position and angle of the door column pin installation hole.

[0008] Further, the door lock installation lock catch is made of a steel bar with a diameter greater than or equal to 8 mm, and the reinforcing rib is made of a steel bar with a diameter greater than or equal to 6 mm.

[0009] Further, the process door lock base is provided with a screw hole in the middle, and the elastic limit mechanism is fixedly connected with the screw hole on the process door lock base through a fastening bolt, a gasket and a nut.

[0010] Further, the elastic limit mechanism is provided with a positioning groove in the middle for improving the assembly accuracy.

[0011] Further, the elastic limit mechanism is made of a steel bar with a diameter greater than or equal to 6 mm.

[0012] Further, the limiting block and the installation inner stud are connected with the process door lock base through welding.

[0013] Further, the installation inner stud is internally provided with a thread for being installed with the door lock installation hole of the door through an assembly bolt.

[0014] Further, the elastic limit door lock is directly and naturally buckled on the door lock installation lock catch, and the door assembly and the body-in-white assembly have a gap of 40mm-60mm.

[0015] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0016] (1) The utility model ensures that the left / right door assembly is temporarily and effectively installed on the body-in-white assembly, facilitates the overall painting of the left / right door assembly and the body-in-white, and saves the workshop space and work station appliances occupied by the door painting alone.

[0017] (2) The utility model discloses a door fixing auxiliary tool, and a certain gap is left between left / right door assembly and the body-in-white assembly, ensuring that electrophoresis and surface paint have sufficient paint spraying space, and coating is sufficient and effective.

[0018] (3) The utility model discloses a door fixing auxiliary tool, which reduces the quality problems such as swinging and bumping caused by the unfixed door during the transportation of the body-in-white assembly.

[0019] (4) The utility model discloses a door fixing auxiliary tool, and the left / right door assembly and the body-in-white welding assembly are electrophoresed and painted by a robot, avoiding the quality defects such as color difference caused by separate coating. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the elastic limiting door lock of the door fixing auxiliary tool of the utility model embodiment.

[0021] Figure 2 It is a plan view of the elastic limiting door lock of the door fixing auxiliary tool of the utility model embodiment.

[0022] Figure 3 It is an elevation view of the elastic limiting door lock of the door fixing auxiliary tool of the utility model embodiment.

[0023] Figure 4 It is the utility model Figure 3 A-A sectional view.

[0024] Figure 5 It is a schematic view of the door lock mounting lock catch of the door fixing auxiliary tool of the utility model embodiment.

[0025] Figure 6 It is an external view effect diagram of the door fixing auxiliary tool of the utility model embodiment after installation.

[0026] Figure 7 It is an internal view effect diagram of the door fixing auxiliary tool of the utility model embodiment after installation.

[0027] Figure 8 It is the utility model Figure 5 A portion enlarged schematic view.

[0028] In all the drawings, the same reference signs represent the same technical features, specifically: 1-elastic limiting door lock, 11-process door lock base, 12-positioning installation inner stud, 13-elastic limiting mechanism, 14-fastening bolt, 15-gasket, 16-tightening nut, 17-limiting block, 2-door lock mounting lock catch, 21-stiffener, 22-installation thread. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] As shown in Figures 1-8 The utility model provides a kind of door fixing auxiliary tool, including elastic limit door lock 1 and door lock mounting lock catch 2, the elastic limit door lock 1 includes process door lock base 11, the plane of process door lock base 1 is attached with the door lock mounting face on vehicle door, the process door lock base 11 is equipped with multiple positioning installation screw hole, and is coincident with the position of door lock mounting hole on vehicle door, is installed on vehicle door by assembly bolt, the tail of door lock mounting lock catch 2 is equipped with installation thread 22, for fastening door lock mounting lock catch on the mounting point of body-in-white door frame, can guarantee that elastic limit door lock is smoothly clamped and pops out, when closing vehicle door, concave point on elastic limit door lock 1, directly and naturally buckle on door lock mounting lock catch 2, and vehicle door assembly and body-in-white assembly keep 40mm~60mm gap, can ensure that later electrophoresis, finish painting is smooth, paint surface full coverage, eliminates the security, quality hidden danger such as vehicle door swing, knock injury in the process of body-in-white transfer.

[0031] As shown in Figures 1-4 The utility model provides a kind of door fixing auxiliary tool, including elastic limit door lock 1 and door lock mounting lock catch 2, the elastic limit door lock 1 includes process door lock base 11, the plane of process door lock base 1 is attached with the door lock mounting face on vehicle door, the process door lock base 11 is equipped with multiple positioning installation screw hole, and is coincident with the position of door lock mounting hole on vehicle door, is installed on vehicle door by assembly bolt, the tail of door lock mounting lock catch 2 is equipped with installation thread 22, for fastening door lock mounting lock catch on the mounting point of body-in-white door frame, can guarantee that elastic limit door lock is smoothly clamped and pops out, when closing vehicle door, concave point on elastic limit door lock 1, directly and naturally buckle on door lock mounting lock catch 2, and vehicle door assembly and body-in-white assembly keep 40mm~60mm gap, can ensure that later electrophoresis, finish painting is smooth, paint surface full coverage, eliminates the security, quality hidden danger such as vehicle door swing, knock injury in the process of body-in-white transfer. The process door lock base 11 is equipped with elastic limit mechanism 13, the middle of elastic limit mechanism 13 is equipped with positioning recess, elastic limit mechanism 13 is prepared by diameter greater than or equal to 6mm reinforcing bar, has good elasticity, can be effectively buckled with the door lock mounting lock catch 2, the middle of process door lock base 11 is equipped with screw hole, and elastic limit mechanism 13 is connected with process door lock base 11 by fastening bolt 14, tightening nut 16, is equipped with gasket 15 between fastening bolt 14 and elastic limit mechanism 13, increases fastening force and improves the reliability and stability of equipment, the side of elastic limit mechanism 13 is fixedly connected with process door lock base 11 with limiting block 17, the limiting block 17 is square small pad, can effectively prevent elastic limit mechanism 13 from swinging due to arm length, causes limit deviation.

[0032] As shown in Figure 5As shown, the door lock mounting lock catch 2 is made of steel with a diameter greater than or equal to 8mm, the door lock mounting lock catch 2 is provided with a reinforcing rib 21 made of steel with a diameter greater than or equal to 6mm, the reinforcing rib 21 is connected with the door lock mounting lock catch 2 by welding, so as to ensure good strength of the door lock mounting lock catch, and the door lock mounting lock catch is not easily damaged and fails in repeated use, the tail of the door lock mounting lock catch is provided with a mounting thread 22 for fastening the door lock mounting lock catch on the mounting point of the body-in-white door frame, so as to ensure smooth clamping and popping of the elastic limiting door lock.

[0033] In another embodiment of the utility model, a kind of assembly method of door fixing auxiliary tool is provided, a kind of door fixing auxiliary tool includes elastic limiting door lock 1 and door lock mounting lock catch 2 two parts, after body-in-white assembly is offline, left / right door assembly is assembled, adjusted.

[0034] The elastic limiting mechanism 13 is mounted on the process door lock base 11 by fastening bolt 14, gasket 15 and nut 16, the positioning installation inner stud 12 and square limiting block 17 are connected with the process door lock base 11 by welding, and the elastic limiting door lock 1 is assembled on the door lock mounting hole of the door by bolt.

[0035] The door lock mounting lock catch 2 is provided with a reinforcing rib 21, which is connected with the door lock mounting lock catch 2 by welding, and the tail of the door lock mounting lock catch 2 is provided with a mounting thread 22, so as to assemble the door lock mounting lock catch 2 on the door pillar pin mounting hole of the body-in-white door frame by thread 22.

[0036] When closing the door, the concave point on the elastic limiting door lock 1 is directly and naturally buckled on the door lock mounting lock catch 2, and the door assembly and the body-in-white assembly have a gap of 40mm-60mm, to ensure smoothness of post-coating electrophoresis and topcoat, and full coverage of paint surface.

[0037] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vehicle door fixing aid, characterized in that: include: An elastically limited door lock (1) and a door lock mounting catch (2); wherein, The elastic limiting door lock (1) comprises a craft door lock base (11), the craft door lock base (11) is provided with a plurality of positioning mounting screw holes, a positioning mounting inner stud (12) is provided on the upper portion of each positioning mounting screw hole, the positioning mounting screw hole and the positioning mounting inner stud (12) coincide with the door lock mounting hole on the vehicle door, the top of the craft door lock base (11) is provided with an elastic limiting mechanism (13), and a limiting block (17) is provided on the side of the elastic limiting mechanism (13) and fixedly connected to the craft door lock base (11) for preventing the elastic limiting mechanism (13) from swinging due to arm length; The door lock mounting buckle (2) is provided with a reinforcing rib (21) in the middle and a mounting thread (22) at the tail, which is used to fasten the door lock mounting buckle (2) to the mounting point of the body-in-white door frame.

2. The vehicle door fixing aid according to claim 1, characterized in that: The door lock mounting catch (2) is designed to match the position and angle of the door pillar pin mounting hole.

3. The vehicle door fixing aid according to claim 2, characterized in that: The door lock mounting buckle (2) is made of steel bars with a diameter greater than or equal to 8 mm, and the reinforcing ribs (21) are made of steel bars with a diameter greater than or equal to 6 mm.

4. A vehicle door fixing aid according to any one of claims 1 to 3, characterized in that: A screw hole is provided in the middle of the process door lock base (11), and the elastic limiting mechanism (13) is fixedly connected to the screw hole on the process door lock base (11) through a fastening bolt (14), a gasket (15) and a nut (16).

5. The vehicle door fixing aid according to claim 4, characterized in that: A positioning groove for improving assembly accuracy is provided in the middle of the elastic limiting mechanism (13).

6. The vehicle door fixing aid according to claim 5, characterized in that: The elastic limiting mechanism (13) is made of steel bars with a diameter greater than or equal to 6 mm.

7. A vehicle door fixing aid according to any one of claims 1 to 3, characterized in that: The limiting block (17) and the mounting inner stud (12) are connected to the process door lock base (11) by welding.

8. The vehicle door fixing aid according to claim 7, characterized in that: The interior of the mounting inner stud (12) is provided with a thread which is mounted with the vehicle door lock mounting hole via an assembly bolt.

9. A vehicle door fixing aid according to any one of claims 1 to 3, characterized in that: The elastic limiting door lock (1) is directly and naturally buckled on the door lock installation lock buckle (2), and a gap of 40mm to 60mm is maintained between the vehicle door assembly and the body-in-white assembly.