JPH11321735A - Production of automobile door and assembly jig thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convey a door inner panel and a door sash, in a condition loaded in a single set of assembly jig, between each assembly process of the assembly line of a door for an automobile. SOLUTION: This assembly jig of a door for an automobile conveyed between each assembly process mounts a door inner panel assembly constitutional parts of a door inner panel 7, door sash, door impact bar, etc. A first positioning means 1 to 5 for positioning the door inner panel 7 and the door inner panel assembly constitutional parts in a prescribed position, a second positioning means 90 engaged with a heming device to perform positioning in a prescribed position of the heming device, a third positioning means 6 positioning a door hinge in a prescribed position, and a clamp means engaged, positioned and clamped by a conveyer device between each process, are provided in the assembly jig, so as to position and convey a workpiece in each assembly process in an assembly line of the door for the automobile by a single set of assembly jig.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an automobile door and an assembling jig.

[0002]

2. Description of the Related Art Generally, an automobile door is assembled as follows.

That is, as shown in FIG. 15, a part set temporary driving step T ₁ ′ for setting parts such as a door sash on a door inner panel and performing predetermined temporary welding, and a part such as a door sash on the door inner panel. 'and, marriage step T ₃ for coupling the door inner panel and a door outer panel' increased beating step T ₂ to fully welded and, hemming step of the outer peripheral edge of a door outer panel on the outer periphery of the door inner panel together by hemming An automobile door is assembled by an assembly line including T ₄ ′, an after-hem welding step T ₅ ′ for welding a hemmed portion, and a hinge assembling step T ₆ ′ for attaching a door hinge. I have.

In each of the steps T ₁ ′ to T ₆ ′, parts such as a door inner panel, a door inner panel assembly component, and a door hinge are removed from each of the steps T ₁ ′ to T ₆ ′.
It is to be mounted and positioned on a jig corresponding to each of T ₆ ′.

[0005]

However, as described above, when jigs corresponding to each process are used, the installation cost of the jig increases, and it is necessary to mount the work again in each process. In addition, there is a problem that the positioning operation increases and the quality of the product tends to vary.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been developed in a vehicle door assembly line in a state where a door inner panel and a door inner panel assembly component are mounted on a single assembly jig. Is intended to be able to be transported.

[0007]

In order to solve the above problems, a door inner panel, a door inner panel and a door inner panel are provided in an automobile door assembly line. The door inner panel and the door inner panel assembly component are positioned at respective predetermined positions on a vehicle door assembly jig loaded with assembly component parts and conveyed between assembly steps, and fixed means such as welding. A step of forming an inner panel assembly, and a step of integrating the inner panel assembly and the door outer panel by hemming after connecting a door outer panel and the inner panel assembly on a predetermined position of a hemming jig; Step of fixing the hinge to the integrated door panel with bolts or the like , And it is sequentially performed and the step of separating the assembly jig and the door panel.

With the above arrangement, the door inner panel and the door inner panel assembly parts are positioned at predetermined positions in the assembling jig, and the inner panel assembly is formed by fixing means such as welding. It will be transported to the end of the process, so the number of jigs can be greatly reduced and the inner panel assembly will not be removed from the assembly jig in the entire assembly process, so conventional positioning that is performed in each assembly process As described above, the product quality does not vary.

In order to solve the above-mentioned problems, a door assembling jig for an automobile according to the present invention (invention of claim 2) is used in an automobile door assembly line such as a door inner panel, a door sash, and a door impact bar. A first positioning means for positioning the door inner panel and the door inner panel assembly component at a predetermined position, in an automobile door assembling jig mounted with the inner panel assembly component and conveyed between assembly steps; Second positioning means for engaging with the hemming device and positioning it at a predetermined position of the hemming device; third positioning means for positioning the door hinge at a predetermined position; Gripping means to be provided.

[0010] With the above construction, in the assembly line of an automobile door, the work (ie, door inner panel, door sash, impact bar, belt line reinforcement, lock rain) in each assembly process in the assembly line is performed. The positioning and transfer of the door inner panel assembly components such as the force and the door hinge) can be performed by one assembly jig, and the number of jigs can be greatly reduced. Also, since the work positioned on the assembly jig is not removed from the assembly jig until the entire assembly process is completed, there is a variation in product quality as in the conventional product that positions the work in each assembly process. Will not occur.

In this case, as in the third aspect of the present invention, the third positioning means can be set to a position facing the hinge mounting surface of the door inner panel and a position perpendicular to the hinge mounting surface. In addition to the position changeable, the third positioning means includes a positioning pin for positioning a nut plate for mounting the door hinge in a position facing the hinge mounting surface, and a positioning pin for positioning the nut plate in a position perpendicular to the hinge mounting surface. In the case where a positioning surface for positioning the door hinge is provided, the positioning when the nut plate for mounting the door hinge is mounted and the positioning when the door hinge is mounted are changed by the same means (that is, the third positioning means). Can be performed only by the above, and the mounting workability is improved.

[0012]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 14 shows a jig A for assembling an automobile door.
In other words, the assembly line shown in (1), ie, the door inner panel and the parts constituting the door inner panel assembly (ie, various parts such as the door sash) are positioned at respective predetermined positions, and the part set welding forming the inner panel assembly by fixing means such as welding. welding step T _1, along with coupling the door inner panel and the door outer panel, a marriage & hemming step T ₂ which binds by hemming the peripheral edge of the door outer panel relative to the outer peripheral edge of the door inner panel, the hemming portion and after-heme welding step T ₃ of, in which the hinge assembly step T ₄ for attaching the door hinge is used in an assembly line that includes a jig dismounting step T ₅ removing the assembly jig.

As shown in FIGS. 1 and 2, the assembling jig A includes a lower frame 9 having a jig plate 11 for positioning the door inner panel 7,
And an upper frame 10 which is connected to the upper portion and which is inclined at an inclination angle substantially equal to the inclination angle of the door sash 8.

The lower frame 9 has four door inner panel positioning means 1, 1... For positioning the door inner panel 7 at a predetermined position, and an impact bar 12 assembled to the door inner panel 7 at a predetermined position. Impact bar positioning means 3, 3
A pair of belt line reinforcement positioning means 4 and 4 for positioning a belt line reinforcement 15 assembled to the door inner panel 7 at a predetermined position, and a lock reinforcement 13 assembled to the door inner panel 7. A locking reinforcement positioning means 5 for positioning at a predetermined position, and a door hinge 14 mounted on the door inner panel 7
Door hinge positioning means 6 for positioning the door hinge at a predetermined position.

On the other hand, the upper frame 10 is provided with four door sash positioning means 2, 2,... For positioning the door sash 8 at a predetermined position.

Each door inner panel positioning means 1
As shown in FIG. 3, a reference projection 16 erected on the jig plate 11 and abutted on the indoor side at a predetermined position of the door inner panel 7, and an erect member on the front surface of the jig plate 11. U-shaped clamp arm 1 rotatably supported on a bearing 17 via a pivot 18 to clamp the door inner panel 7 opposite to the reference projection 16.
9 and a spring 20 for urging the clamp arm 19 in the unclamping direction. The clamp arm 19 is connected to an end of a wire 21 constituting a part of an operation means X described later. I have. The bearing 17
And the clamp arm 19 are connected to the door inner panel 7.
Is projected from the work hole 22 formed in the door inner panel 7 at the time of positioning.

The door inner panel positioning means 1 having the above structure has the following effects.

That is, the clamp arm 19 in the unclamping position shown by the chain line in FIG. 3 pulls the wire 21 in the direction of the arrow, and as shown by the solid line in FIG. The inner panel 7 is clamped so as to face the reference projection 16, and the door inner panel 7 is positioned at a predetermined position.

As shown in FIG. 4, each of the door sash positioning means 2 is fixed to the upper frame 10 and has an L-shaped positioning member 23 in which the outer edge 8a of the door sash 8 abuts on one side 23a. A reference projection 24 erected on the other side 23b of the positioning member 23 and abutting on the indoor side of the door sash 8;
And an inverted L-shaped clamp arm 26 which is rotatably supported on another side 23b of the door sash 8 via a pivot shaft 25 and clamps the corner 8b of the door sash 8. The clamp arm 26 is connected to an end of a wire 28 which constitutes a part of an operation means Y described later.

The door sash positioning means 2 having the above structure has the following effects.

In other words, the clamp arm 26 in the unclamping position shown by the chain line in FIG. 4 pulls the wire 28 in the direction of the arrow, and as shown by the solid line in FIG. The corner 8b of the sash 8 is clamped. Then, the door sash 8 becomes the reference projection 2
4 and one side 23a of the positioning member 23, and is positioned at a predetermined position.

Each of the impact bar positioning means 3 comprises:
As shown in FIG. 5, a recess 31 a for pivotally supporting a bearing 29 erected on the jig plate 11 via a pivot shaft 30 for setting the impact bar 12.
And a spring 3 for urging the arm member 31 in a direction for storing the arm member 31 at a position indicated by a chain line in FIG.
The arm member 31 is connected to an end of a wire 33 which constitutes a part of an operation means X described later. The pivotal position of the arm member 31 with respect to the bearing 29 is such that when the arm member 31 is in a position for setting the impact bar 12 (that is, a position indicated by a solid line in FIG. 5), the impact bar 12 set in the concave portion 31a is set.
A predetermined space (that is, a mounting position of the impact bar 12) can be secured between the door inner panel 7 and the door inner panel 7. The bearing 29 projects from a working hole 34 formed in the door inner panel 7 when the door inner panel 7 is positioned.

Impact bar positioning means 3 having the above structure
Has the following effects.

That is, the arm member 31 in the retracted position shown by the chain line in FIG. 5 pulls the wire 33 in the direction of the arrow, thereby setting the arm 33 against the urging force of the spring 32 as shown by the solid line in FIG. It is said. In this state,
When the impact bar 12 is set in the concave portion 31a of the arm member 31, the impact bar 12 is positioned at a predetermined position. In this state, both ends of the impact bar 12 are fixed to appropriate positions of the door inner panel 7 by welding.

The door inner panel positioning means 1, 1
.. Wires 21, 21 for clamping and unclamping the clamp arms 19, 19,.
The wires 33 and 33 for operating the arm members 31 and 31 in the impact bar positioning means 3 and 3 in the set posture and the storage posture are one wire at a wire terminal 35 provided on the jig plate 11. The wire bundle 36 is to be put together.
Is connected to a toggle clamp 37 provided at the upper end of the lower frame 9 for pulling or pushing out the wire bundle 36.

As shown in FIG. 6A, the toggle clamp 37 has a substantially U-shaped base 38 fixed to the upper end of the lower frame 9 and one protrusion 38a of the base 38.
Is inserted into the through hole 39 formed in the
A connecting rod 40 to which one end of the wire bundle 36 is connected to one end
A first link 42 rotatably connected to the other end of the connecting rod 40 via a pin 41, and a first link 42
A second link 45 having one end rotatably connected to the other end of the base 38 via a pin 43 and the other end rotatably connected to the other protrusion 38b of the base 38 via a pin 44; An operation lever 46 is connected to the pin 43 so as not to rotate.

Then, in the state shown in FIG.
When the operation lever 46 is turned in the direction of arrow M, the second link 45 is turned around the pin 44. Then, as shown in FIG. 6 (b), the first link 42 is pulled in the direction of arrow P, and the wire bundle 36 is also pulled in the direction of arrow P, and the door inner panel positioning means 1, 1,. And the third positioning means 3, 3 are set to the set posture. Conversely, when the operation lever 46 is returned in the direction of arrow N from the state shown in FIG. 6B, the first link 42 is pushed back in the direction of arrow Q as shown in FIG. 36 is also pushed back in the direction of arrow Q, and the door inner panel positioning means 1, 1,.
Is operated in the unclamping direction, and the third positioning means 3,
3 is the storage posture.

That is, the wires 21, 21,..., 33, 33, the wire terminal 35, the wire bundle 36, and the toggle clamp 37 are combined with the door inner panel positioning means 1, 1,. The operation means X that operates at the same time is configured.

On the other hand, the wires 28 are simultaneously operated by a toggle clamp 47 having the same structure as the toggle clamp 37 provided at the upper end of the lower frame 9. That is, the wires 28, 28
And the toggle clamp 47 constitute an operating means Y for simultaneously operating the door sash positioning means 2, 2,....

As shown in FIG. 7, the belt line reinforcement positioning means 4 includes a positioning arm 49 rotatably fitted to a support shaft 48 erected on the upper portion of the lower frame 9. And the positioning arm 4
9 for urging the belt 9 to a position where the belt line reinforcement 15 is positioned (ie, the upward movement position).
0, and the positioning arm 49
A positioning pin 52 is provided to engage with a positioning hole 51 formed in the belt line reinforcement 15. Reference numeral 53 denotes a stopper for regulating the upper limit of the positioning arm 49.

The belt line reinforcement positioning means 4 having the above structure has the following effects.

That is, when the positioning arm 49 in the retracted position shown by the chain line in FIG. 7 is manually rotated in the direction shown by the arrow C, as shown by the solid line in FIG. The belt line reinforcement 15 is engaged with the positioning holes 51 of the reinforcement 15 and the positioning of the belt line reinforcement 15 is performed. In this state, both ends of the belt line reinforcement 15 are fixed to appropriate positions of the door inner panel 7 by welding.

As shown in FIG. 8, each of the lock reinforcement positioning means 5 is provided with the jig plate 11.
A support 54 erected above, a handle 55 inserted in the support 54 so as to be able to move forward and backward, a positioning pin 56 inserted in the handle 55 so as to be able to move forward and backward, and the positioning pin 56 is retracted. The positioning pin 56 is provided with a spring 57 that urges in the position direction, and the positioning pin 56 performs positioning by sewing together positioning holes 58 and 59 formed in the door inner panel 7 and the lock reinforcement 13. It has become. When the handle 55 is pushed and turned, the positioning pin 56 is inserted into the positioning holes 58 and 59 against the urging force of the spring 57, and when the handle 55 is turned, the positioning pin 56 is retracted by the urging force of the spring 57. Has become.

The door inner panel positioning means 1, 1,..., The door sash positioning means 2, 2,..., The impact bar positioning means 3, 3, the belt line reinforcement positioning means 4, 4, and the lock reinforcement positioning The means 5 constitutes a first positioning means for positioning the door inner panel and the door inner panel assembly constituent parts at predetermined positions.

A positioning pin 90 for positioning the assembly jig A by engaging with a positioning hole 92 provided in a hemming device B described later is provided on the upper rear surface of the lower frame 9. . The positioning pin 90 is
A second positioning means for positioning the assembly jig A at a predetermined position of the hemming device B is configured. As shown in FIGS. 9 and 10, the door hinge positioning means 6 is in a position facing the hinge mounting surface (ie, the front panel 60) of the door inner panel 7 (FIG. 9).
A) and a positioning plate 61 connected to the lower frame 9 via a hinge 62 so that the position can be changed to a posture orthogonal to the front panel 60 (see FIG. 9 b). A pair of positioning pins 66, 67 inserted into bolt holes 64, 65 in a nut plate 63 for attaching the door hinge 14 in a position facing the front panel 60 so as to be able to move forward and backward with respect to the front plate 61. Consists of Reference numerals 68 and 69 are insertion holes formed in the front panel 60.

As shown in FIG. 10, one positioning pin 66 is urged in a protruding direction by a spring 70, and is provided with a through hole 7 formed in the positioning plate 61.
1 and a cam piece 73 that penetrates the cam piece 72 and faces the cam piece 72. And
When the positioning pins 66 are rotated, when the cam surfaces 72a, 73a of the cam pieces 72, 73 are in the disengaged state, the positioning pins 66 are set to the retracted position (see FIG. 10A). When the cam surfaces 72a and 73a are in the engaged state, the cam surfaces 72a and 73a are set to the advanced position (that is, the positions where the cam surfaces 72a and 73a are inserted into the insertion holes 68 and the bolt holes 64) (see FIG.

As shown in FIG. 10, the other positioning pin 67 has, at its tip, an eccentric projection 74 which is engaged with the insertion hole 69 or the edge of the bolt hole 65 so as to integrally protrude therefrom. It is biased in the locking direction.
Then, by pushing and rotating the positioning pin 67, the eccentric projection 74 is locked to the edge of the bolt hole 65 of the nut plate 63, and the nut plate 63 is positioned (see FIG. 10B). In this state, nut plate 6
3 is fixed to the front panel 60 by welding.

Further, the inner surface of the positioning plate 61 (that is, the surface facing the front panel 60) is positioned so as to position the door hinge 14 in a posture orthogonal to the front panel 60 (see FIG. 9B). An engagement projection 78 that engages with a body-side mounting hole 77 formed in the door hinge 14 and positions the door hinge 14 on the positioning surface 76.
Is provided.

The door hinge positioning means 6 having the above structure has the following effects.

That is, as shown in FIG. 9 (a), the positioning plate 61 is positioned to face the front panel 60, and the positioning of the nut plate 63 is performed by the positioning pins 66 and 67 as described above. Then, as shown in FIG. 9 (b), the positioning plate 61 is oriented perpendicular to the front panel 60, the door hinge 14 is positioned on the positioning surface 76, and the door hinge 14 is bolted to the door hinge 14 with a nut. It is fastened and fixed to the plate 63. That is, positioning at the time of mounting the nut plate 63 for mounting the door hinge 14, and
The positioning at the time of mounting the door hinge 14 can be performed only by changing the posture of the same means (that is, the sixth positioning means 6), and the mounting workability is improved.

The door hinge positioning means 6 having the above structure is
A third positioning means for positioning the door hinge 14 at a predetermined position is constituted.

The front panel 60 is to be spot-welded to the door inner panel 7 positioned on the assembly jig A. As shown in FIG. The tip 8 of the spot welding gun 81 is located at a position corresponding to the spot welding location between the door inner panel 7 and the front panel 60 positioned above.
2 is formed therein. The gap S between the door inner panel 7 and the jig plate 11 is
Has been kept to a minimum. Reference numeral 83 is a reference pin.
In this manner, spot welding between the door inner panel 7 and the front panel 60 can be performed with the jig plate 11 interposed therebetween, so that the jig can be simplified, lightened, and the manufacturing cost can be saved. Become.

The work (ie, the door inner panel 7, the door sash 8) positioned on the assembly jig A
Door inner panel assembly component parts) etc., each step T ₁ through T ₅ by the conveying means (not shown) such as a robot
Although being transported between the lower frames 9, a connection fitting 91 is provided on the back surface of the lower frame 9 so as to be engaged and gripped by a transport device such as a robot. The connection fitting 91 also serves as a connection part of a drive and control system for electric / air and the like from the robot side, and is a gripping means that is engaged / positioned and gripped with the transfer device between the respective processes T _{1 to} T _5. Is to be configured.

The work (ie, the door inner panel assembly parts such as the door inner panel 7 and the door sash 8) positioned on the assembling jig A is moved between the steps T _{1 to} T ₅ by a transfer means such as a robot. not be removed floor plan is transported, for example, in the marriage & hemming step T _2, as shown in FIGS. 12 and 13, the positioning pins into the positioning holes 92 in the hemming apparatus B having a hemming type 84 90 Are positioned by engaging. At this time, the door inner panel 7 mounted on the assembly jig A is overlaid on the door outer panel 85 set on the hemming device B in advance.

The hemming die 84 winds (ie, hems) the outer peripheral edge 85a of the door outer panel 85 around the outer peripheral edge 7a of the door inner panel 7.
It has a known structure. That is, a pre-bending die 86 for pre-bending the outer peripheral edge 85a of the door outer panel 85 to an oblique state, and an outer peripheral edge 85a of the door outer panel 85 pre-bent by the pre-bending die 86 on the outer peripheral edge 7a of the door inner panel 7. And a main bending die 87 that performs main bending by winding the pre-bending die 86 forward by the link mechanism 88 to perform the pre-bending, and then the main bending die 87 moves down to perform the main bending. It has become. The preliminary bending die 86 and the main bending die 87 are operated by the extension operation of the hydraulic cylinder 89.

Further, the outer peripheral edge 8 of the door outer panel 85
The outer line F of the assembly jig A is positioned inside the inner end line F 'of the outer peripheral edge 85a when the outer peripheral edge 7a of the door inner panel 7 is hemmed. This eliminates the need to remove the workpiece from the assembly jig A even when hemming the outer peripheral edge 85a of the door outer panel 85 to the outer peripheral edge 7a of the door inner panel 7, thereby improving workability and product quality.

With the above-described structure, in the assembly line of an automobile door, the work (ie, the door inner panel 7, the door sash 8, the impact bar 12, the work in each of the assembly processes T _{1 to} T ₅ in the assembly line) is performed. The positioning and transport of the door inner panel assembly parts such as the belt line reinforcement 15 and the lock reinforcement 13 and the door hinge 14) can be performed by one assembly jig A, and the number of jigs is greatly reduced. it can. Further, the work which is positioned in the assembly jig A, since never be removed from the assembly jig A to the total assembly process T ₁ through T ₅ is completed, the positioning of the workpiece in each assembling step T ₁ through T ₅ This eliminates the occurrence of variations in product quality as in the prior art that performs the above.

[0049]

According to the first aspect of the present invention, in an automobile door assembly line, a door inner panel and a door inner panel assembly component are mounted, and the automobile door is assembled and conveyed between assembly steps. A step of positioning the door inner panel and the door inner panel assembly constituting parts at respective predetermined positions, and forming the inner panel assembly by fixing means such as welding;
A step of combining the door outer panel and the inner panel assembly on a predetermined position of the hemming jig and then integrating the inner panel assembly and the door outer panel by hemming, and attaching a hinge to the integrated door panel with a bolt or the like. And the step of separating the assembling jig and the door panel are sequentially performed. Therefore, the door inner panel and the door inner panel assembly component are positioned at predetermined positions in the assembling jig. Then, the inner panel assembly is constituted by fixing means such as welding, and is transported to the end of the assembling process in this state, so that the number of jigs can be greatly reduced, and the inner panel assembly can be assembled in all assembly processes. Because it will not be removed from
There is an effect that the product quality does not fluctuate unlike the conventional one in which positioning is performed in each assembly process.

According to the second aspect of the present invention, a door inner panel, a door sash,
A jig for mounting a door inner panel assembly such as a door impact bar and the like, which is conveyed between each assembly process, for an automobile door assembling jig, wherein the door inner panel and the door inner panel assembly constituting part are positioned at predetermined positions. A second positioning means for engaging with the hemming device and positioning it at a predetermined position of the hemming device;
Positioning means, a third positioning means for positioning the door hinge at a predetermined position,
In the assembly line of an automobile door, a work (ie, door inner panel,
Door inner panel assembly components such as door sash, impact bar, belt line reinforcement, lock reinforcement, etc. and door hinges)
Can be performed by one assembly jig, so that the number of jigs can be greatly reduced.

Further, since the work positioned on the assembly jig is not removed from the assembly jig until all the assembly steps are completed, the product quality is different from that of the conventional one in which the work is positioned in each assembly step. This eliminates the occurrence of variations.

As in the third aspect of the present invention, the third
The position of the hinge mounting surface of the door inner panel can be changed between a position facing the hinge mounting surface and a position perpendicular to the hinge mounting surface. A positioning pin for positioning a nut plate for mounting the door hinge in a position facing the door, and a positioning surface for positioning the door hinge in a position perpendicular to the hinge mounting surface; a nut for mounting the door hinge; The positioning at the time of mounting the plate and the positioning at the time of mounting the door hinge can be performed only by changing the posture of the same means (that is, the third positioning means), and the mounting workability is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a jig for assembling an automobile door according to an embodiment of the present invention.

FIG. 2 is a side view of an automobile door assembling jig according to the embodiment of the present invention.

FIG. 3 is a side view showing a door inner panel positioning means in the automobile door assembling jig according to the embodiment of the present invention.

FIG. 4 is a side view showing door sash positioning means in the jig for assembling a door for an automobile according to the embodiment of the present invention.

FIG. 5 is a side view showing an impact bar positioning means in the automobile door assembling jig according to the embodiment of the present invention.

FIG. 6 is a side view showing a toggle clamp in the automobile door assembling jig according to the embodiment of the present invention;
(A) shows the unclamped state, and (B) shows the clamped state.

FIG. 7 is a side view showing a belt line reinforcement positioning means in the automobile door assembling jig according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a lock reinforcement positioning means in the automobile door assembling jig according to the embodiment of the present invention.

FIG. 9 is a longitudinal sectional view showing a door hinge positioning means in the automobile door assembling jig according to the embodiment of the present invention, wherein (a) shows a nut plate positioning state, and (b) shows a door hinge positioning. The state is shown.

FIG. 10 is a cross-sectional view showing door hinge positioning means in the automobile door assembling jig according to the embodiment of the present invention, wherein (a) shows a state before positioning a nut plate, and (b) shows a nut. The state after the positioning of the plate is shown.

FIG. 11 is a cross-sectional view showing a state during spot welding in the automobile door assembling jig according to the embodiment of the present invention.

FIG. 12 is a plan view of a hemming device used in a hemming process in an automobile door assembling process using the automobile door assembling jig according to the embodiment of the present invention.

FIG. 13 is a side view of a hemming device used in a hemming process in an automobile door assembling process using the automobile door assembling jig according to the embodiment of the present invention.

FIG. 14 is a block diagram showing a process of assembling the automobile door of the present invention.

FIG. 15 is a block diagram showing a process of assembling a conventional automobile door.

[Explanation of symbols]

1 is a door inner panel positioning means, 2 is a door sash positioning means, 3 is an impact bar positioning means, 4 is a belt line reinforcement positioning means, 5 is a lock reinforcement positioning means, 6 is a door hinge positioning means, and 7 is a door. Inner panel, 7a is outer rim, 8 is door sash, 11 is jig plate, 12 is impact bar, 13 is rock reinforcement, 1
4 is a door hinge, 15 is a belt line reinforcement, 60 hinge mounting surface (front panel), 63 is a nut plate, 66 and 67 are positioning pins, 76 is a positioning surface, 85 is a door outer panel, 85a is an outer peripheral edge, A
Is an assembly jig, F is an outer line, F 'is an inner end line, T ₁
Part set welding step, T ₂ is Marriage & hemming step T _2, T ₃ after-heme welding process, T ₄ the process hinged assembly, T ₅ is the jig removal step.

Claims (3)

[Claims] In an automobile door assembly line, a door inner panel and a door inner panel assembly component are mounted on an automobile door assembly jig which is transported between assembly steps. A step of positioning the door inner panel assembly constituent parts at respective predetermined positions and forming the inner panel assembly by fixing means such as welding; and coupling the door outer panel and the inner panel assembly on a predetermined position of the hemming jig. A step of integrating the inner panel assembly and the door outer panel by post-hemming processing, a step of fixing a hinge to the integrated door panel with bolts or the like, and a step of separating the assembly jig and the door panel. Method of producing automobile doors characterized by the following Law. 2. An automobile door assembling jig which is mounted on a door inner panel assembly line such as a door inner panel, a door sash, and a door impact bar, and is conveyed between assembly steps. First positioning means for positioning the door inner panel and the door inner panel assembly component at a predetermined position; second positioning means for engaging with the hemming device and positioning at a predetermined position on the hemming device; An assembling jig for an automobile door, comprising: third positioning means for positioning a door hinge at a predetermined position; and gripping means for engaging, positioning, and gripping a transport device between processes. 3. The position of the third positioning means can be changed between a position facing the hinge mounting surface of the door inner panel and a position perpendicular to the hinge mounting surface. A positioning pin for positioning a nut plate for mounting the door hinge in a position facing a surface; and a positioning surface for positioning the door hinge in a position perpendicular to the hinge mounting surface. An assembly jig for an automobile door according to claim 2.