KR-20260063155-A - Device for bonding door belt rail for vehicle

Abstract

The present invention relates to a vehicle door belt rail bonding device, and aims to provide a vehicle door belt rail bonding device capable of ensuring bonding surface matching between the door belt rail and the door outer panel and improving bonding quality when combining the door belt rail and the door outer panel using an adhesive bonding method.

Inventors

• 최현철
• 박찬휘
• 김태완
• 김병윤
• 김인준
• 이진화

Assignees

• 현대자동차주식회사
• 기아 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (12)

1. Mold jig for mounting a door panel; A rapid curing unit for entering the interior of a door panel seated on the above mold jig and heating the adhesive surface of a door belt rail attached to the door outer panel while applying pressure toward the door outer panel; and A power supply unit for supplying power to the above rapid curing unit; A vehicle door belt rail adhesive device including
2. In claim 1, The above rapid curing unit is; Induction heating coil; A heating block that is heated by the above-mentioned induction heating coil and pressurizes and heats the adhesive surface of the door belt rail; and An actuator for controlling the vertical and horizontal movement of a mounting bracket equipped with the heating block to move the heating block into the interior of a door panel; A vehicle door belt rail adhesive device characterized by including
3. In claim 2, A vehicle door belt rail adhesive device characterized in that the above rapid curing unit further includes an auxiliary pressure unit for applying pressure around the adhesive surface of the door belt rail.
4. In claim 3, A vehicle door belt rail adhesive device characterized in that the rapid curing unit includes a first mounting bracket on which the heating block and auxiliary pressure unit are mounted, and the first mounting bracket is configured to be movable back and forth by a first cylinder.
5. In claim 4, The above rapid curing unit is: A mounting bracket mounted on the first mounting bracket; A second cylinder mounted on the above-mentioned mounting bracket; and It includes a second support that moves up and down by the second cylinder; A vehicle door belt rail adhesive device characterized in that the heating block is coupled to the second mounting bracket through a rotating bracket module for supporting the heating block so as to be rotatable in the forward, backward, left, and right directions.
6. In claim 5, A vehicle door belt rail adhesive device characterized in that the heating block is coupled to the rotating bracket module through an insulating mounting bracket.
7. In claim 2, The above heating block is; A block body around which an induction heating coil is wound; An extension portion extending to one side of the upper part of the block body; and A heat conduction portion protruding downward from the lower end of the above-mentioned extension; A vehicle door belt rail adhesive device characterized by being composed of
8. In claim 2, A vehicle door belt rail adhesive device characterized in that the heating block is connected to a temperature sensor for measuring its temperature, and the temperature sensor transmits temperature information of the heating block to a temperature control unit for controlling the temperature of the heating block.
9. In claim 5, The above rapid curing unit is; A shim mounting portion mounted on the end of the piston rod of the second cylinder; A lifting amount adjustment stopper provided on the upper part of the above-mentioned shim mounting portion and positioned below the mounting bracket to restrict the upward movement of the heating block; and An entry amount adjustment stopper disposed in front of the first mounting bracket to restrict the forward movement of the heating block; A vehicle door belt rail adhesive device characterized by further including
10. In claim 4, The above auxiliary pressurization unit is; A third stand mounted on the first stand; A pressure clamp configured to move up and down by a pressure cylinder mounted on the third mounting bracket and to apply pressure around the adhesive surface of the door belt rail until the adhesive is fully cured; A vehicle door belt rail adhesive device characterized by including
11. In claim 10, A vehicle door belt rail adhesive device characterized in that the above-mentioned pressure clamp extends forward of the third mounting bracket and has a pressure neck portion protruding downward at its end.
12. In claim 10, A vehicle door belt rail adhesive device characterized in that a lowering amount adjustment stopper is provided on the upper part of the third mounting bracket, and the lowering amount adjustment stopper restricts the downward movement of the pressure clamp.

Description

Bonding device for vehicle door belt rails The present invention relates to a vehicle door belt rail bonding device, and more specifically, to a vehicle door belt rail bonding device for ensuring bonding quality between a door belt rail and a door outer panel. Generally, a door belt rail for mounting a door belt is provided between the door inner panel and the door outer panel that constitute the door panel of a vehicle. Conventionally, the door belt rail was assembled to the door inner panel and then hemmed and joined to the door outer panel; however, recently, to minimize exposure, the door belt rail is attached to the door outer panel using adhesive. When attaching a door belt rail to a door outer panel using the above adhesive, the matching of the adhesive surfaces between the door outer panel and the door belt rail is ensured by correcting and managing the dimensions of the door outer panel, and the door belt rail and the door outer panel are bonded through the natural curing (or room temperature curing) of the adhesive that cures at room temperature. Additionally, a clamp is used to secure the door belt rail and the door outer panel while the adhesive is curing. However, after the door belt is assembled to the inner panel assembly and then matched with the door outer panel, excessive dispersion and deviation occur in the adhesive surface between the door belt rail and the door outer panel. The aforementioned inner panel assembly is an assembly composed of a door inner panel and a door belt rail assembled to the door inner panel. Consequently, it is difficult to ensure proper alignment of the adhesive surfaces between the door belt rail and the door outer panel. This leads to issues such as the adhesive area failing to adhere closely and lifting, as well as uneven adhesive thickness, resulting in degraded adhesive quality. Furthermore, since subsequent processes cannot proceed until the adhesive has fully cured, there is a problem of increased production cycle time and the potential for post-processing deformation. FIG. 1 is a drawing illustrating a vehicle door belt rail adhesive device according to an embodiment of the present invention. FIGS. 2 and FIGS. 3 are drawings illustrating a rapid curing unit according to an embodiment of the present invention. FIG. 4 is a partial drawing illustrating the detailed configuration of a rapid curing unit according to an embodiment of the present invention. FIGS. 5a to 6 are drawings illustrating the operation sequence of a rapid curing unit according to an embodiment of the present invention. FIGS. 7 and 8 are drawings illustrating the operation sequence of a heating block according to an embodiment of the present invention. FIG. 9 is a drawing illustrating the connection structure of a power supply unit according to an embodiment of the present invention. FIG. 10 is a flowchart showing a vehicle door belt rail bonding process according to an embodiment of the present invention. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The details included in the accompanying drawings are schematic for the purpose of easily explaining the embodiments of the present invention and may differ from the actual implemented form. Additionally, terms such as "first" and "second" in this specification may be used to describe various components, but said components are not limited by said terms. These terms are used to distinguish one component from other components. For example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and the second component may be named the first component. As illustrated in FIG. 1, a vehicle door belt rail adhesive device according to an embodiment of the present invention includes a mold jig (10), a plurality of rapid curing units (100), and a power supply unit (300). The above mold jig (10) is a jig for seating and fixing a door panel (20) to which a door belt rail (see 23 in FIG. 7) is attached. The door panel (20) seated on the mold jig (10) is supported and fixed in the correct position through a plurality of jig clamps (11). The above jig clamp (11) is mounted and positioned on a base plate (12) on which a mold jig (10) is mounted, and holds the door panel (20) seated on the mold jig (10) to fix the door panel (20) so that it does not move on the mold jig (10). The above door panel (20) is composed of a door outer panel (21) and a door inner panel (22), and the door outer panel (21) is first placed on the mold jig (10), and then the door inner panel (22) is provided on the door outer panel (21). In other words, a door outer panel (21) is first placed on the mold jig (10), and then an adhesive is applied to a designated location of the door outer panel (21) (i.e., the area to be bonded to the door belt rail), and then a door inner panel (22) with a door belt rail (23) mounted thereon