KR-20260065249-A - Vehicle seat assembly device

Abstract

The present invention relates to a vehicle seat assembly device. When a completed seat plate (200) is transported to an assembly position along a transfer conveyor (300), a first industrial robot (500) clamps a completed back plate (400) and supplies it to the vicinity of the seat plate (200). Subsequently, when a vision camera (608) (708) of a pair of left and right 3-axis orthogonal robots (600) (700) photographs the two screw holes (202) (204) on the left and right fixing pieces of the seat plate (200) and the two screw holes (402) (404) on the left and right fixing pieces of the back plate (400), the first industrial robot (500) first corrects the supply position of the back plate (400) based on the comparison value, and the seat plate (200) and the back plate (400) With the screw holes (202)(204)(402)(404) each connected, albeit inaccurately, the wedge-shaped guide pins (610)(710) possessed by the left and right 3-axis orthogonal robots (600)(700) are inserted into one of the screw holes (202)(402) of the seat plate (200) and the back plate (400) so that the said screw holes (202)(402) are connected accurately. Subsequently, when the vision cameras (808)(908) possessed by the left and right second industrial robots (800)(900) photograph the other screw hole (204)(404) of the seat plate (200) and the back plate (400), the first industrial robot (500) secondarily corrects the supply position of the back plate (400) based on the comparison value so that the other screw hole (204)(404) is accurately In a state where they are connected, the nut runners (810) (910) of the left and right second industrial robots (800) (900) are configured to fasten a fixing bolt (406) to another screw hole (204) (404), and subsequently, in a state where the guide pins (610) (710) of the left and right 3-axis orthogonal robots (600) (700) are separated from and returned to one screw hole (202) (402), the nut runners (810) (910) of the left and right second industrial robots (800) (900) are configured to fasten a fixing bolt (406) to one screw hole (202) (402) to assemble the seat plate (200) and the back plate (400), so that the left and right fixing pieces of the completed seat plate (200) and the left and right fixing pieces of the completed back plate (400) are each secured by two fixing bolts (406). It is designed so that the assembly and fixing process can be carried out quickly and accurately through automation.

Inventors

• 김기현
• 남상길

Assignees

• (주)세종이엠시

Dates

Publication Date

20260508

Application Date

20241101

Claims (6)

1. A conveyor that transports the finished seat plate to the assembly position; A first industrial robot installed on one side of the front of the above-mentioned transfer conveyor, clamping the completed back plate and supplying it to the vicinity of the seat plate; A pair of left and right 3-axis orthogonal robots are installed in the front center of a transfer conveyor and each has a vision camera and a guide pin; A pair of left and right second industrial robots, each having a vision camera and a nut runner, are installed in the rear center of the transfer conveyor; and A vehicle seat assembly device including a controller that controls these.
2. In paragraph 1, The above transfer conveyor is, A long frame from side to side; A chain belt coupled between a driving sprocket and a driven sprocket having on both sides of the above frame; A reduction motor connected to a drive sprocket to rotate a chain belt; and A vehicle seat assembly device comprising a plurality of jigs that are coupled to a chain belt, move along the chain belt, and each have a clamp for clamping a completed seat plate.
3. In paragraph 1, The above-mentioned first industrial robot is, entity; A plurality of arms connected to the main body by joints; and A vehicle seat assembly device comprising a gripper coupled to the above arm.
4. In paragraph 1, The above-mentioned left and right 3-axis orthogonal robot is, A first moving body that operates left and right by means of a ball screw connected to a reduction motor from a support frame and an LM guide; A second moving body that operates up and down by means of a ball screw and an LM guide connected to a reduction motor from the first moving body; A third moving body that operates back and forth by means of a ball screw and an LM guide connected to a reduction motor from the second moving body; A vision camera connected to and installed on the third mobile body; and A vehicle seat assembly device including a guide pin that is also connected to and installed on a third moving body.
5. In paragraph 4, The guide pins of the above-mentioned left and right 3-axis orthogonal robot are, Thin cylinder; and A vehicle seat assembly device comprising a wedge-shaped pin portion operated by the above-mentioned thin cylinder.
6. In paragraph 1, The above-mentioned left and right second industrial robots are, entity; A plurality of arms connected to the main body by joints; A support frame connected to the end of the above arm; A vision camera connected to and installed on the above support frame; and A vehicle seat assembly device comprising a nut runner that is also connected to and installed on a support frame and receives a fixing bolt from a parts feeder.

Description

Vehicle seat assembly device The present invention relates to a vehicle seat assembly device for assembling a finished seat plate and a finished back plate during the production of a vehicle seat. Generally, depending on the vehicle model, vehicle seats are equipped with various functions, ranging from as many as about 40 types, such as forward and backward sliding means, height adjustment means, backrest angle adjustment means, heating means, and seating detection means. Therefore, when manufacturing, the various required functions are applied to the frame forming the skeleton of the seat and backrest, and then the cushion material and seat cover are installed to complete the assembly. The fixing pieces located on the rear sides of the seat and the fixing pieces connected by pivot pins on the lower sides of the backrest are each connected and fixed with two fixing bolts to complete the assembly. Accordingly, the applicant has already provided Registered Patent No. 10-1607449 (Title: Torsion spring assembly device for automobile seat), Registered Patent No. 10-1668992 (Title: Seat clamping device for electrical component assembly line for automobile seat), and Registered Patent No. 10-1758150 (Title: Pumping shaft operating force measuring device for manual height seat for automobile), etc., in order to enable the work to be carried out by an assembly line to provide various functions required when manufacturing an automobile seat. However, the aforementioned vehicle seat assembly devices are intended only to provide various functions required for the seat or backrest during the production of the seat, and no assembly device for assembling the finished seat and backrest is provided. In particular, since the finished seat and backrest each consist of cushion material and seat cover surrounding the frame, it is difficult to guarantee consistency and precision in the supply position when clamped using various clamping means, making it difficult to perform the assembly of the finished seat and backrest on an assembly line. Consequently, the process of assembling the seat and backrest by fixing the seat in the assembly position, moving the heavy backrest near the seat, and making several fine adjustments to ensure that the two screw holes on the left and right fixing pieces of the backrest are connected to the two screw holes on the left and right fixing pieces of the seat, and then fastening fixing bolts to each connected screw hole, is extremely difficult and complicated, and requires a significant amount of time and manpower, leading to a significant decrease in productivity. FIG. 1: Perspective view of the present invention seen from the front side FIG. 2: Perspective view of the present invention seen from the front side FIG. 3: Perspective view of the present invention seen from the rear side FIG. 4: Perspective view of the present invention seen from the rear side. FIG. 5: Perspective view of a transfer conveyor used in the present invention FIG. 6: Perspective view of the first industrial robot used in the present invention FIG. 7: A perspective view of the first industrial robot used in the present invention seen from a different direction. FIG. 8: Perspective view of a left and right 3-axis orthogonal robot used in the present invention FIG. 9: Perspective view of the left and right 3-axis orthogonal robot used in the present invention, seen from a different direction. FIG. 10: Perspective view of the left and right second industrial robots used in the present invention FIG. 11: Perspective view of the left and right second industrial robots used in the present invention, viewed from different directions. FIG. 12: A perspective view showing the case in which the first industrial robot in the present invention clamps the backrest and supplies it near the seat. FIG. 13: Perspective view showing the case where the vision camera of the left and right 3-axis orthogonal robot in the present invention photographs the screw hole of the seat plate. FIG. 14: Enlarged perspective view of a key part showing the case where the vision camera of the left and right 3-axis orthogonal robot in the present invention photographs the screw hole of the seat plate. FIG. 15: Enlarged perspective view of a key part showing the case where the vision camera of the left and right 3-axis orthogonal robot in the present invention photographs the screw hole of the back plate. FIG. 16: A perspective view showing the case where the guide pin of the left and right 3-axis orthogonal robot in the present invention enters one of the screw holes of the seat plate and the back plate. FIG. 17: Enlarged perspective view of a key part showing the case where the guide pin of the left and right 3-axis orthogonal robot in the present invention enters a screw hole of either the seat plate or the back plate. FIG. 18: A perspective view showing the case in which the vision cameras of the left and right second industrial robots in the present inventi