JPH0639267B2 - Assembly method of panel parts - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of assembling a panel component such as a hood of an automobile, which includes an outer panel and an inner panel.

2. Description of the Related Art Panel parts such as automobile hoods, doors, and trunk lids are constructed by stacking an inner panel on an outer panel and applying a hemming process to the ends of the outer panel. In this case, usually, a coating process of the mastic sticker and a coating process of the rust preventive sealer are required before the hemming process. Therefore, as shown in FIG. 13, the assembly line has a sealer before the hemming process. coating step four steps (stages) S ₁ to S ₄ is often set to ( "automotive engineering Zensho 19 Volume automobile manufacturing method" as similar technologies to those containing Sankaido. Akira 55,4,20, P1
67-168 and P184).

That is, the outer panel is put into the line at stage S ₁ , the matrix sealer at stage S ₂ , and the stage S _{3 at}
Apply anti-rust sealer to each outer panel with. Then, the inner panel is put on the outer panel coated with the respective sealers at the stage S ₄ to combine the two (this work is called “maritage”).

The outer panel thus coated with each sealer is the first hemming process (including the pre-hemming process) S in the subsequent stage.
₅ will be subjected to to S _7. S ₈ is the unloading stage.

Here, the mastic sticker is a mass filled in the joint surface between the outer panel and the inner panel in order to convey the rigidity of the inner panel, which is a reinforcing material, to the outer panel to prevent so-called stickiness and drumming of the outer panel. It refers to a stick-type adhesive or a structural adhesive.

The rust preventive sealer means a sealant filled in the hemming flange portions of the outer panel and the inner panel for the purpose of not only the adhesive effect but also the rust preventive effect by the sealer property. Also called hemming sealer or hemming adhesive.

Problems to be Solved by the Invention In the conventional assembling method as shown in FIG. 13, the outer panel loading step S ₁ , the matrix sealer applying step S _{2, the} antirust sealer applying step S ₃ and the inner panel loading step are performed. Since the process S ₄ is independent of each other, the total length of the line becomes long, the floor occupying area becomes large, and the initial input cost of equipment becomes high.

Also, since the loading process for the outer panel and the loading process for the inner panel are not adjacent but separate, place the autoloader or operator at each loading position when loading each panel by the autoloader or operator. Therefore, the work capacity of the autoloader or the worker cannot be effectively exhibited.

The present invention is intended to provide a method of assembling a panel component, which solves the above problems by shortening the process.

Means for Solving the Problems The present invention is a loading process of an outer panel and a coating process of a mastic sticker described above by using a tiltable jig, and a loading process of an inner panel and a coating process of an anticorrosive sealer. It is characterized by merging each.

Specifically, the outer panel is inserted into the tiltable jig in the tilted posture position, and after the posture of the jig is changed to the upright posture, the outer panel on the jig is fitted with a mastic sticker and rust preventive. The step of applying one of the sealers and receiving the outer panel coated with the sealer under the condition that the tiltable jig is in the upright posture, and applied the other sealer to the outer panel. Then, the jig is tilted, and a step of assembling the inner panel to the outer panel under this tilted posture position and a step of performing a hemming process on the peripheral portion of the outer panel to which the inner panel is assembled are included. It is a method of assembling panel parts.

The panel is conveyed between the above steps by a shuttle bar (transfer bar) type conveying device, and each sealer is applied by a sealing robot or a dedicated sealing device.

Action As described above, each jig is used for loading the outer panel and applying the mass sealer, and for loading the inner panel and applying the rust preventive sealer, respectively.

Therefore, the loading of the outer panel and the coating of the mastic sticker are essentially one step, and the coating of the rust preventive sealer and the loading of the inner panel are one step, which is at least two steps shorter than the conventional method. become.

Embodiment FIG. 1 is a view showing an embodiment of the present invention, and illustrates an assembling process of the automobile hood described above. As shown in the figure, six stages (processes) S _{11 to} S ₁₆ are arranged in parallel along the transfer bar 1 as a transfer device, S ₁₃ is a pre-hemming process, S ₁₄ is a hemming process, and S ₁₄ is a hemming process.
₁₅ is an after-hemming process and S ₁₆ is an unloading process. Then, a Masuchitsukushira coating step S ₁₁ which also serves as an outer panel Rohde queuing step before the pre-hemming step S _13, the point where the rust sealer coating step S ₁₂ which also serves as an inner panel Rohde queuing process are juxtaposed prior Different from

A lifter 2 as a jig and a sealing device 3 as shown in FIGS. 2 and 3 are arranged in the mastic sticker applying step S ₁₁ .

Reference numeral 4 denotes a base, and a lifter base 6 is rotatably supported by a pin 7 on a bracket 5 on the base 4. Further, a trunnion type tilting cylinder 8 is provided on the base 4, and its piston rod 8 a is connected to the lifter base 6.

Therefore, the lifter 2 is rotated between the upright position shown by the solid line in FIG. 2 and the tilting position shown by the phantom line by the action of the tilting cylinder 8.

9 is a stopper that restricts the tilting limit position of the lifter 2,
Shock absorber 10 for alleviating impact when tilting
Is equipped with.

A lift cylinder 11 is provided on the lifter base 6, and a horizontal lifter table 12 is connected to the tip of the piston rod 11a of the lift cylinder 11. On the other hand, the lifter table 12 has a pair of guide rods 13
Are provided, and these guide rods 13 are inserted into guide bushes 14 provided on the lifter base 6.

Therefore, the lifter table 12 is the lift cylinder 1
By the action of 1, the guide bush 14 moves up and down while being guided.

Reference numeral 15 is a cylinder-driven locking device attached to the lifter base 6, and the locking device 15 has a function of locking the lifter table 12 at the lower limit position.

Further, the lifter table 12 is provided with a plate 16 for positioning and supporting an outer panel W _1, which will be described later, and a clamp device 17 for clamping the outer panel W ₁ .

The transfer bar 1 reciprocates in the longitudinal direction by the action of a drive mechanism (not shown), and the finger 18 itself can be opened and closed as shown.

The sealing device 3 has a known structure including a large number of sealing nozzles 19, and is attached to the frame 20.

In the above-mentioned mastic sticker applying step, the lifter 2 stands by at the tilting position shown by the phantom line in FIG. When the operator or the loader sets the outer panel W ₁ on the lifter 2 in the tilted posture position, the clamp device 17 clamps the outer panel W ₁ .

Then, due to the action of the tilting cylinder 8, the lifter 2 rotates in the counterclockwise direction in FIG. 2 to change its posture to the upright posture position. At this time, Finger 1 of Transfer Aber 1
8 is open as shown by the phantom line in FIG.

When the lifter 2 is in the upright posture, the lift cylinder 11 works to lift the lifter table 12 and push the outer panel W ₁ to the P ₁ position. As a result, the outer panel W ₁ faces the sealing nozzle 19, and the sealing nozzle 19 applies the mastic sticker Q ₁ in a granular form to the outer panel W ₁ as shown in FIG.

During this time, the finger 18 of the transfer bar 1 is closed as shown by the solid line in FIG. 2, the clamp device 17 is unclamped and the lifter table 12 is lowered while waiting for the completion of the application of the mastic sticker Q _1. Thereby, the outer panel W ₁ is transferred to the finger 18 of the transfer bar 1. Then, the outer panel W ₁ is transported by the transfer bar 1 to the rust preventive sealer coating step S ₁₂ which is the next step.

As for the antirust sealer coating step S ₁₂ , as shown in FIGS. 5 and 6, in addition to the lifter 22 as a jig, a sealing robot 21 is provided.

The lifter 22 has the same structure as the lifter 2 in the mastic sticker application step S ₁₁ , and the sealing robot 21 has a function of applying a rust preventive sealer along the hemming flange portion of the outer panel W ₁ while moving the sealing nozzle 29. Have.

In this rust preventive sealer applying step S ₁₂ , the lifter 22
Stands by in the upright position shown by the solid line in FIG.

Then, when the outer panel W ₁ coated with the mastic sticker in the previous step is conveyed by the transfer bar ₁ , the lifter table 32 rises to move the outer panel W ₁ (P ₂ position) supported by the transfer bar _1. receive push go-between to the P ₃ position. During this time, the finger 18 opens to the position of the imaginary line shown in FIG. 5, and the clamp device 27 clamps the outer panel W ₁ .

Waiting for the finger 18 to open, the lifter table 32 descends to the lower limit position to position the outer panel W ₁ .

In this state, the sealing robot 21 shown in FIG. 6 operates, and the outer panel W as shown in FIG. 7 and FIG.
Apply the rust preventive sealer Q ₂ in a bead shape along the hemming flange on the four circumferences of ₁ .

When the application of the rust preventive sealer Q ₂ is completed, the entire lifter 22 is rotated by the action of the tilting cylinder 28 to the tilting position shown by the phantom line in FIG. Then, the operator or the loader sets the inner panel W ₂ to the outer panel W ₁ supported by the lifter 22 in the tilted posture position so as to cause a margin.

When the inner panel W ₂ is set, the lifter 22 changes its posture to the upright posture position shown by the solid line in FIG. 5, and the lifter table 32 is further raised so that the outer panel W ₁ to which the inner panel W ₂ is attached is set to P. Push up to the ₂ position. Then, the lifter table 32 descends again while waiting for the finger 18 to close to the position indicated by the solid line and wait for the clamp device 27 to perform the unclamp operation. As a result, the outer panel W ₁ is transferred to the finger 18 again.

The outer panel (including the inner panel) W ₁ transferred to the finger 18 is conveyed to the pre-hemming step S ₁₃ of the next step by the movement of the transfer bar 1.

In the pre-hemming step S ₁₃ , for example, a table top type pre-hemming device 33 as shown in FIG. 9 is arranged, and at the same time hemming is performed on four corners of the outer panel W ₁ , the cylinder 34 is driven. With the pre-hemming die 35, the flange portion of the outer panel W ₁ is pre-hemmed as shown in FIGS. 10 and 11.

Both the hemming step S ₁₄ and after hemming step S ₁₅ known hemming apparatus (e.g. real Publication 51-17
No. 231) is installed, and the portion to which the pre-hemming process is previously performed will be subjected to the hemming process as shown in FIG. In this case, spot welding of several points is simultaneously performed in the after-hemming step S ₁₅ .

Further, the steps S _{13 to} S ₁₅ can be integrated according to the shape of the work or the like, or can be subdivided into several steps.

Here, the transport of the panel between the step S ₁₃ to S ₁₅ are performed Te transformer Hua bar 1 Niyotsu described above, food F that has passed through the after-hemming step S ₁₅ is Ann Rohde queued is conveyed Ann Rohde queuing step S ₁₆ Will be.

EFFECTS OF THE INVENTION According to the present invention, by using a tiltable jig, the outer panel loading process and the one sealer applying process, which are conventionally separate and independent, and the other sealer applying process and the inner panel applying process, are performed separately. The digging process is merged respectively. Therefore, the total length of the line is shortened to occupy a small space, and the initial cost of equipment can be reduced.

Further, since the insertion position of the outer panel and the insertion position of the inner panel are close to each other, it is possible to share the operator or the loader who performs the operation of inserting those panels in both processes, and the operator or the loader can be shared. You can maximize your work ability.

Furthermore, when the operator inserts the inner panel, the outer panel will face the operator in the tilted position of the jig, so check the coating state of the mastic sticker and rust preventive sealer visually. You can

[Brief description of drawings]

FIG. 1 is a process explanatory diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a mastic sticker coating process, FIG. 3 is a right side view of FIG. 2, FIG. 4 is an outer panel explanatory diagram, FIG. 5 is an explanatory view of the rust preventive sealer coating step, FIG. 6 is a right side view of FIG. 5, FIG. 7 is an explanatory view of the outer panel, and FIG. 8 is a sectional view taken along line VIII-VIII of FIG. , FIG. 9 is an explanatory view of the prehemming process, FIG. 10 is a plan view of the outer panel, and FIG.
1 and 12 are sectional views taken along the line XI-XI of FIG. 10, and FIG. 13 is a conventional process explanatory view. S ₁₁ …… Mastic sticker coating process, S ₁₂ …… Rust preventive sealer coating process, S ₁₃ …… Pre-hemming process, S ₁₄ …… Hemming process, S ₁₅ …… After hemming process, W ₁ …… Outer panel, W ₂ …… Inner panel, F …… Hood, Q ₁ …… Mastic sticker, Q ₂ …… Rust preventive sealer, 1
...... Transfer bar, 2, 22 ...... Lifter as jig, 3 ...... Sealing device, 21 ...... Sealing robot.

Claims (1)

[Claims] 1. A method of assembling a panel component, comprising an outer panel and an inner panel, wherein a mating sealer and an anticorrosive sealer are applied to the joint surfaces of the panels prior to hemming, in a tiltable jig. A step of applying the outer panel in the tilted posture position, changing the posture of the jig to the upright posture, and then applying one of the sealer and the rust preventive sealer to the outer panel on the jig. Under the condition that the tiltable jig is in the upright position, the outer panel coated with the sealer is received, the other sealer is applied to the outer panel, and then the jig is tilted. Originally, the process of assembling the inner panel to the outer panel and the peripheral part of the outer panel where the inner panel is assembled Method of assembling a panel component comprising a step of performing hemming.