JPH03193576A - Hinge pin conveying and assembling method for car door - Google Patents

Abstract

PURPOSE:To simplify the operation of a hinge pin concerned by separating a car body and a door once after coating them, engaging a hinge pin with one side of the hinge members for conveyance, and rejoining the car body and the door together by the hinge pin at the assembling position. CONSTITUTION:When a coating process is over in the state that a car body B and a door C are solidly assembled, a separating motion between the door C and the body B takes place and each hinge pin pulled out of a hinge receiving member of the body B and another hinge receiving member of the door C is inserted in either of these hinge receiving members as it is. The door C is held by each of door conveyor rails 14a, 14b via a suspension means 18 and conveyed in the arrow direction, while the body B is mounted on a carriage- form (16) pallet member and conveyed in the arrow direction as well. At a door assembling station 100, the hinge pin is tightly attached to the body B and the door C for their unification after pulling it out of the hinge receiving member of the door C, by way of example, via man power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for transporting and assembling a hinge pin for a vehicle door for integrally connecting a vehicle body and a door in an assembly process of a vehicle.

[Prior Art] Generally, on an automobile production line, in order to eliminate uneven coating, the car body and door are painted as one unit, and then
An assembly method is adopted in which the vehicle body and the door are separated again, each is assembled, and then the vehicle body and the door are assembled integrally. In this case, when assembling the vehicle body and the door, the hinge receiver member is attached to each of the vehicle body and door in advance, and the hinge receiver of the other set is assembled by inserting the hinge pin into the member. We aim to integrate the following.

Therefore, when considering the relationship between hinge pins and automobile assembly lines, first, the vehicle body and door are integrally painted in a painting process, and then the vehicle body and door are separated once as described above.

This is because the door portion needs to be opened wide in order to incorporate large parts such as seats into the vehicle body. However, it is preferred that the hinge pins also be transported along the assembly line in order to reassemble the vehicle body and door. This is because if different hinge pins are used before and after the painting process, the management of the hinge pins becomes troublesome and the number of hinge pins also doubles.

Furthermore, during the painting process, the hinge pins are painted in the same color as the car body and doors, so when the door is opened or closed in the vehicle after it reaches the consumer, the hinge pins will be the same color as the car body and doors. This has the advantage of being aesthetically pleasing.

Therefore, in order to transport the hinge pin along the assembly line, it is conceivable to first place it on the vehicle body. However, simply placing the hinge pin on the vehicle body and transporting it to the final assembly process may get in the way when attaching sacrificial parts and the like. In other words, there is no space in the car body to temporarily place a hinge pin, making management complicated. On the other hand, depending on where it is placed, this hinge pin can be used to assemble various parts as floor carpets, instrument panels, etc. are sequentially assembled to the car body. This will hinder the

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems, and provides that the hinge pin of a door or a vehicle body that moves along the vehicle manufacturing line of an automobile is temporarily attached to a member, and the hinge pin is temporarily attached to the member. When integrating the vehicle body and the door, the hinge pin is removed from the hinge receiver member, the vehicle body and the door are temporarily assembled, and then the vehicle body and the door are permanently joined together with the hinge pin. The present invention aims to provide a method for transporting and assembling hinge pins.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a hinge member attached to the vehicle body side for assembling the door to the vehicle body, and a hinge member attached to the door side. A method for transporting a hinge pin that integrally connects a vehicle body and a door, the vehicle body and door being painted, the vehicle body and door being temporarily separated for outfitting, and the hinge pin being engaged with one of the hinge members. The vehicle body and the door are then integrally connected again using the hinge pin at the main assembly position after the completion of the mounting process.

[Operation: After the painting process is completed, the vehicle body and door are separated by removing the hinge pin. At this time, the hinge pin is inserted into the vehicle body-side hinge receiver or the door-side hinge receiver into the member and transported, in order to once again integrate the vehicle body and the door after the mounting process is completed. After the mounting process is completed, the hinge pin is removed from the vehicle body or door holding it with the vehicle body and door engaged again, and then a press-fitting device is used to integrate the vehicle body and door. It is then subjected to the assembly process again.

[Example] A preferred example of the method for transporting and assembling a hinge pin for a vehicle door according to the present invention will be described in detail below with reference to the accompanying drawings.

First, an automobile assembly line for carrying out the method of the present invention will be described below.

FIG. 1 schematically shows the manufacturing line. This production line 10 basically includes a trolley rail 12 and door conveyance rails 14aS and 14b disposed above it. The vehicle A includes a vehicle body B and a door C, and the vehicle body B is transported by a self-propelled trolley 16 disposed on the trolley rail 12, while the door C is transported by a self-propelled trolley 16 disposed on the rails 14a and 1 for door transport.
4b is transported in a suspended state by a suspension means 18 that displaces it. In this case, a first hinge receiver for pivotally connecting the door C to the vehicle body B via a hinge pin so as to be openable and closable includes a pair of members 50a and 50b extending vertically (see Fig. 2); Similarly, in the door C, a pair of members 60a and 60b are disposed on the upper and lower sides of the second hinge receiver (see FIG. 3). The first hinge receiver is member 5.
0a, 50b and the second hinge receiver are engaged with members 60a, 60b, respectively, and the vehicle body B and door C are subjected to a painting process.Then, the hinge pins are removed, and the vehicle body B and door C are separated. They are transported and outfitted.

Since the outfitting process is not the gist of the present invention, a description thereof will be omitted.

Next, referring to FIG. 4 and subsequent figures, the door assembly station 10 where the vehicle body B and the door C are again integrated after the completion of the formal process
Let's explain about 0.

The door assembly station 100 basically includes a door transfer mechanism 200, a door preset mechanism 300, a door assembly robot 400, and a door closing mechanism 500. In this case, the door transfer mechanism 200, the door preset mechanism 300, the door assembly robot 400, and the door closing mechanism 500 are respectively arranged on both sides of the trolley rail 12, and have the same basic configuration. Therefore, only one of them will be explained in detail.

First, a door presetting mechanism 300 is arranged below the door conveyance rails 14a and 14b. Therefore, the door C, which is conveyed by the suspension means 18 along the door conveying rails 14a, 14b, is first received and positioned by this door presetting mechanism 300.Therefore, the door conveying mechanism 200 is It is possible to displace the door assembly robot 400 in the vehicle width direction and the vehicle length direction so that the door assembly robot 400
can move to the door presetting mechanism 300 side and receive the door C held there. The received door C is again moved to the vehicle body B under the driving action of the door transfer mechanism 200.
Then, the door C is moved to a predetermined position.

In this case, the door assembly robot 400 is provided with a first cylinder 404a on the upper part of the arm 402 at the tip of the robot, and a link mechanism 4 is attached to the cylinder rod 406a.
A second cylinder 410a is fixedly attached to the cylinder 410a so as to be able to freely swing through the cylinder 410a. Cylinder rod 4 of second cylinder 410a
A suction cup 414a that can obtain a suction effect using a vacuum suction source (not shown) is provided at the tip of the suction cup 12a.

On the other hand, there is a bracket 416a below the arm 402.
is extended, and a third cylinder 418a is engaged with this bracket 416a.

The cylinder rod 420a of the third cylinder 418a pivotally supports a rotating member 424a that is displaced at a predetermined angle about a shaft 422a, and the rotating member 424a has a door holder having an arcuate curved surface made of urethane resin or the like at the tip end thereof. Member 426a
(See Figure 6). Note that at least one set of the above-mentioned configurations is arranged in parallel at the upper and lower parts of the arm 402.

Therefore, a hinge pin press-fitting mechanism 430 is fixed to the tip of the arm 402. The hinge pin press-fitting mechanism 430 includes a housing 432, and the housing 432 is separated into a first chamber 436a and a second chamber 436b by a partition wall 434.

A cylinder 438a is disposed in the first chamber 436a, and the cylinder rod 439a is inserted into the second chamber 436a through the partition wall 434.
36b. Similarly, a cylinder 438b is arranged in the second chamber 436b, and its cylinder rod 439b
extends into the first chamber 436a via the partition wall 434. A cylindrical stopper member 440b faces the cylinder rod 439a, and a stopper member 440a faces the cylinder rod 439b. A bracket 442a is fixed to the tip of the cylinder rod 439a, and the bracket 442a extends outside the housing 432 and engages with a sliding member 444a. A pair of proximity switches 446a, 448a are arranged, and these proximity switches 446a, 448a are connected to the bracket 4.
A limit bracket 450a fixed to 42a faces.

A rail member 452 is provided outside the housing 432 and extends in the longitudinal direction thereof, and bent arm members 454 and 456 are provided at one end of the rail member 452, respectively.

A movable arm 458a is provided on a part of the sliding member 444a, and a permanent magnet 460a is fixed to the tip thereof.

Note that the various mechanisms provided in connection with the second chamber 436b have the same shape and function as the components provided in connection with the first chamber 436a, so they are designated by reference numerals. b will be added instead of a, and detailed explanation thereof will be omitted.

The automobile assembly line for carrying out the method for transporting and assembling a hinge pin for a vehicle door according to the present invention and the apparatus as its constituent elements are basically as described above, and the functions and effects thereof will be explained next.

As described above, the painting process is performed with the vehicle body B and the door C integrated together, and when the painting process is completed, the door and the vehicle body are separated. Here, after the painting process is completed, the hinge pins P (see Fig. 7), which were manually extracted from the members 50a and 50b for the hinge receivers of the vehicle body B and the members 60a and 60b for the hinge receivers for the door C (see Fig. 7), are left as they are. One hinge receiver is inserted into the member 50a, 50b or 60a, 60b.

In this embodiment, it is assumed that the hinge pin P is inserted into the hinge receivers 60a and 60b of the door C. In FIG. 1, the door C separated from the vehicle body B is held by the door transport rails 14a and 14b via the suspension means 18, and is transported in the direction of the arrow. On the other hand, car body B
is similarly transferred in the direction of the arrow while being placed on a pallet member on a trolley 16 disposed on the trolley rail 12.

Thereupon, the door C conveyed by the hanging means 18 is received by the door presetting mechanism 300 and waits at a predetermined position. On the other hand, the truck 16 arrives at the door assembly station 100 together with the pallet member that holds the vehicle body B. At this time, the hinge receiver of the door C is attached to the member 60 by hand.
The hinge pins P are extracted from the pins a and 60b and are locked in advance to the permanent magnets 460a and 460b of the door assembly robot 400 by their magnetic force. In addition, in this way, the hinge pin P that connected the vehicle body B and the door C during the painting process
It can be said that the gist of the present invention is that the same hinge pin P is used to assemble the vehicle body B and the door C after the betting process.

Next, the door transfer mechanism 200 is energized, displacing the door assembly robot 400 in the vehicle width and vehicle length directions, and transferring it to the door presetting mechanism 300 side. And the first cylinder 4
04a, drive the second cylinder 410a to attach the suction cup 41
4a and 414b to the glass plate of the door C, and also drives the third cylinder 418a to rotate the rotating member 424a.
by rotating the door holding member 426a around the shaft 422a.
This door C is held in a predetermined posture by the following. In this state, the door transfer mechanism 200 is energized again, and the door assembly robot 400 is displaced to the door assembly position.

Then, the door assembly robot 400 approaches the door presetting mechanism 300 and picks up the door C.

After positioning and holding the door C, the door assembly robot 400 approaches the vehicle body B, and when the hinge receiver of the vehicle body B and the hinge receiver of the door C are in a joined state, the door assembly robot 400 approaches the vehicle body B. By energizing the cylinders 438a and 438b, the movable arms 458a and 458b are respectively displaced, and the hinge pin P that is being held is fitted into the members 50a, 50b, 60a and 60b of the hinge receivers of the vehicle body B and the door C, respectively. , its moving distance is the limit bracket 450a,
450b's deenergization is controlled by its proximity to proximity switches 448a, 448b. In this way, the hinge pin P is fixed to integrate the vehicle body B and the door C, so that the cylinders 438a and 438b are again
is limit bracket 450a.

450b is displaced until it reaches proximity switches 446a, 446b. Thereafter, the door transfer mechanism 200, the door preset mechanism 300, and the door assembly robot 400 also return to their original positions. Needless to say, the work on the rear door C is also carried out in the same way and at the same time. lastly,
The door closing mechanism 500 is energized and the door C is closed against the vehicle body B.

FIG. 10 and subsequent figures show an embodiment of another apparatus used in the hinge pin conveying and assembling method according to the present invention. Here, reference numeral 600 indicates a hinge pin press-fitting mechanism provided at the tip of the hinge pin assembly robot 400.

The hinge pin press-fitting mechanism 600 includes a machine stand 602, and this machine stand 602 is fixed to the tip of the robot arm 402. A first press-fitting arm lifting cylinder 604 is fixed below this machine base 602. A bracket 608 is provided at the tip of the piston rod 606 of the first press-fit arm lifting cylinder 604, and this bracket 60
8, a movable arm 458a shown in FIG. 7 is attached. A motor 612 for energizing a rotary machine base 620, which will be described later, is provided on a partition wall 610 of the machine base 602, and a locking cylinder for locking the rotary machine base 620 at a predetermined position is provided in close proximity to the motor 612. 614 is provided. Cylinder rod 616 of locking cylinder 614
The tip of the bushing 622 provided on the rotary machine stand 620
I am going to

The rotating machine base 620 has a bearing 624 relative to the machine base 602.
It is rotatably attached via the shaft. In other words, the rotary machine stand 6
20 has a shaft 626, which is fitted into the bearing 624. A rotating gear 62 is attached to the shaft 626.
8 is fixed, and this rotating gear 628 meshes with a driving gear 630 that is pivotally attached to the rotating shaft of the motor 612. A second press-fitting arm lifting cylinder 632 is disposed inside the rotating machine base 620, and a cylinder rod 634 of this cylinder 632 is engaged with a bracket 636 connected to the movable arm 458b. In the figure, reference numerals 640a to 6
Reference numeral 40d indicates a guide roller for smoothly sliding and rotating the rotary machine base 620. Note that in this example, the first
Components that are the same as those shown in FIGS. 9 to 9 are given the same reference numerals, and detailed explanation thereof will be omitted.

In the above configuration, this hinge pin press-fitting mechanism 6
For example, the hinge receiver of the door C picks up the hinge pin inserted into the member 60a160b as instructed by the door assembly robot 400. At this time, the motor 612 for rotating the rotating machine base 620 is energized, and the rotational force is transmitted to the rotating gear 628 via the driving gear 630.
The rotating machine base 620 is thereby transmitted to the machine base 602.
10, and the movable arm 458b is in an upper position, completely opposite to the position shown in FIG.

The robot arm reaches the predetermined position in this state,
That is, the hinge pin press-fitting mechanism energizes the first compression arm lifting cylinder 604 and the second press-fitting arm lifting cylinder 632 to move the hinge pin P to the member 60a of the door C under the attraction action of the magnets 460a and 460b. ,6
Extract from 0b. Then, when the door C is connected to the vehicle body B and the hinge receiver members 50a and 60a and 50b and 60b are engaged with each other, the rotation motor 612 is energized again to rotate the drive gear 630, and the tenth The movable arm 458b is positioned at the position shown in the figure. At this time, the locking cylinder 614 is energized and its cylinder rod 616
is inserted into the bushing 622, and positioning of the rotary machine base 620 is achieved.

In this state, under the same action as shown in FIG.
The vehicle body B and the door C are integrated into one body.

[Effects of the Invention] According to the present invention, as described above, one hinge pin can be used for all types of models and automatically for door assembly. As a result, the work related to hinge pins for integrating doors and car bodies has been extremely simplified, and the hinge pins used during the painting process are now also used to attach doors to the same car body that is assembled after the outfitting process is complete. It has excellent aesthetic appearance because of its appearance. Furthermore, no special mechanism is required for transporting the hinge pin, making it extremely efficient and economical. Furthermore, since the bin is always transported integrally with the vehicle body or door, accidents such as loss of the bin itself can be avoided.

Although the present invention describes a door preset mechanism and a door transfer mechanism, it is possible to configure the door assembly robot to directly receive the door after the miscellaneous fitting process, and omit the door preset mechanism and the door transfer mechanism. Of course, it is possible.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of the overall structure for performing the hinge pin conveying method according to the present invention, Fig. 2 is a partially omitted perspective view showing the relationship between the vehicle body and the hinge receiver, and Fig. 3 is a door and The hinge receiver is a partially omitted perspective view showing the relationship with the members, Figures 4a to 4C are plan explanatory views showing the operation mode of the door assembly station according to the present invention, and Figure 5 is the main part of the door assembly robot. 6 is a longitudinal sectional view of the main part of the door assembly road shown in FIG. 5, and FIG. 7 is a front view of the hinge pin press-fit mechanism of the door assembly robot shown in FIGS. 5 and 6. 8 is a side view of the hinge pin press-fit mechanism shown in FIG. 7; FIG. 9 is a side view of the hinge pin press-fit mechanism shown in FIGS. 6 to 8; FIG. 10 is a vertical cross-sectional view of the hinge pin press-fitting mechanism for carrying out the method of the present invention, and FIG. 11 is a front view of the hinge pin press-fitting mechanism shown in FIGS. 1-0. 10... Production line 12...Dolly rail 16...Dolly 200...Door transfer mechanism 300...Door presetting mechanism 400...Door assembly robot 402...Arm 404a...Cylinder 408a...Link mechanism 410a, 418a... Cylinder 426a... Door holding member 430... Hinge pin press-fitting mechanism 436a, 436b... Chamber 438a, 438b... Cylinder 446a, 448a... Proximity switch 458a...
Movable arm 460a...Permanent magnet 500...Door closing mechanism 600...Hinge pin press-fitting mechanism FIG, 4b FIG, 4c \ -(・□ ＼ FIG, 10 / / X1・- ＼ 56

Claims (5)

[Claims] (1) A method for transporting a hinge pin that integrally connects a hinge member attached to the vehicle body side and a hinge member attached to the door side in order to assemble the door to the vehicle body, the method comprising: the vehicle body and the door; After painting, the vehicle body and door are temporarily separated for outfitting, the hinge pin is attached to one of the hinge members and transported, and the hinge pin is attached to the main assembly position after the outfitting process is completed. A method for transporting and assembling a hinge pin for a vehicle door, characterized by integrally recombining the vehicle body and the door. (2) A method for transporting and assembling a hinge pin for a vehicle door according to claim 1, wherein the hinge pin is transported while being engaged with a hinge member on the door side. (3) A method for transporting and assembling a hinge pin for a vehicle door according to claim 1, wherein the hinge pin is transported by being inserted into a hinge member on the vehicle body side. (4) In the method according to claim 1, when the door and the vehicle body are fully assembled, the hinge pin is once reversed and then inserted into the door side hinge member and the vehicle body side hinge member. How to transport and assemble the hinge pin. (5) In the method according to any one of claims 1 to 4, when the vehicle body and the door are fully assembled, the hinge pin that is conveyed while being attached to the hinge member of the door or the vehicle body is moved to the press-fitting arm of the hinge pin press-fitting device. The vehicle is characterized in that, after the door hinge member and the vehicle body hinge member are engaged with each other, the hinge pin press-fit device that received the hinge pin press-fits the hinge pin into the vehicle body and the door hinge member. How to transport and assemble hinge pins for doors.