JPS6322777A - Door assembly device for automobile - Google Patents

Abstract

PURPOSE:To enable reliable assembly of a door to a car body irrespective of a kind of a car and the shape of a door, by a method wherein the holding tool of a door holding mechanism is moved in conformity to the shape of the door, and auxiliary door holding mechanisms are provided so that the door can by always held in a position. CONSTITUTION:The holding tools of first holding mechanisms 56 and 56a mounted to a door assembly device 10 for an automobile is moved in conformity to the shape of a door A. In addition to the door holding mechanisms, second holding mechanisms 80 and 80a for auxiliariy holding the door A are mounted, and are formed so that the door A can be always held in a position. The outside of the door A, to which an outfit is attached, has no mechanism to make con tact for holding, and an outer paint film is prevents from damage. Simple con trol, e.g. movement of some holding mechanism, can cope with a difference in the shape of the door A due to a difference in a kind of a car, and enables reliable assembly of door A to a car body.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door assembly device, in particular:
An automobile door that, when automatically assembling the door to the vehicle body, can reliably grip the repaired door and attach it easily and reliably to the vehicle body, regardless of the vehicle type or shape. Regarding assembly equipment.

Generally, on a car manufacturing line, the car body and door are painted as one unit to prevent uneven coating, etc., and then the car body and door are separated and installed separately.
An assembly method is used in which the car body and door are reassembled.

Conventionally, as mentioned above, in order to reassemble the vehicle body and the door, there is a device that positions and holds the door so that the joint member of the door that has been repaired and the joint member of the vehicle body are in appropriate positions relative to each other. It has been adopted. In this holding device, first, the door is positioned based on the lower edge of the door. At this time, the door is held by using the outer shape of the door including the lower edge or the surface located on the outside when the door is attached to the vehicle body. That is, the lower edge and outer shape of the door are held, and the holding device is moved toward the vehicle body to join the door. Needless to say, at this time, a door holding jig is used that conforms to the shape of the lower edge and the outer shape of the door.

By the way, since the shape of an automobile door differs depending on the model, the above-mentioned device that holds the door based on the outer shape of the door requires a door holding jig of a different shape for each model. Therefore, door holding jigs are required to accommodate a wide variety of door shapes, which is not economical and requires a large amount of storage space. Therefore, the narrow space cannot be used effectively, and the replacement work of the jigs hinders automated production, resulting in a decrease in production efficiency. In addition, if the door is held on its outer surface, the paint film applied to the outside of the door will be damaged, making it impossible to ship the product, and even if it is repainted, there will be inconveniences such as uneven coating. It cannot be avoided.

The present invention has been made in order to overcome the above-mentioned disadvantages, and provides an automobile door assembling device for assembling a vehicle body and a door. Arranged so that it is parallel to the
When the door is held by the first door holding mechanism attached to the arm, the holder of the door holding mechanism is configured to move in accordance with the shape of the door, and the first
In addition to the door holding mechanism, a second door holding mechanism is provided to hold the door auxiliary, and the second holding mechanism is configured to hold the door at a predetermined position at all times. It is an object of the present invention to provide an automobile door assembly device which is suitable for automation and which makes it possible to actually assemble a door to a vehicle body.

In order to achieve the above object, the present invention provides an automobile door assembly device for assembling a door to a vehicle body, comprising:
a door holding mechanism that displaces and engages with a coupling member that is fixed to a side of the door and is engaged with a hinge member provided on the vehicle body; and a door holding mechanism that engages with a lower part of the door to support the door from below. It is characterized by comprising a door support mechanism.

Next, preferred embodiments of the automobile door assembly apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 1O indicates an automobile door assembly apparatus according to the present invention, and in this case, the automobile door assembly apparatus IO includes a trolley guide mechanism 12 fixed to a floor surface.

A rail 14 is disposed on the upper surface of the truck guide mechanism 12, and a truck 16 is mounted above the rail 16, which is movable in the left-right direction in FIG. 1, that is, in the X-axis direction by wheels rolling on the rail 14. It is placed. A pair of rails 13a and 18b are arranged on the upper surface of the truck 16 in a direction perpendicular to each other in the figure (hereinafter referred to as the Y-axis direction), and the main body 20 is moved in the Y-axis direction on the rails 18a and 18b. Possibly placed. That is, by configuring the main body 20 as described above, it is possible to move in the X-axis direction and the Y-axis direction. Further, the main body 20
has a cover member 22 at one end thereof, and a pair of guide columns 24a, 24b are erected at the other end.

In FIG. 1, an elevating member 26 that is movable in the vertical direction (hereinafter referred to as the Z-axis direction) is engaged with the guide columns 24a and 24b.

The elevating member 26 has an arm 28 extending in the X-axis direction.
supports one end of the Therefore, it will be easily understood that the arm 28 is configured to be able to be displaced in any of the three directions, that is, the X-axis, Y-axis, and Z-axis.

In this case, the arm 28 is equipped with a mechanism for holding the door A indicated by a two-dot chain line, the details of which are shown in FIGS. 2 to 4.

2 to 4, a supporting angle member 30 and a motor mounting plate 32 are disposed on the upper surface of the arm 28 at a predetermined distance from each other. A motor 34 is attached to one end surface of the motor mounting plate 32, and the rotational drive shaft of the motor 34 is connected to one end of a first ball screw 36 that passes through a hole (not shown) formed in the motor mounting plate 32. is connected with.

The other end of the first ball screw 36 is rotatably supported by the angle member 30. A bent body 38 is screwed into the first ball screw 36, and the bent end portion 3 of this plate body 38 is screwed into the first ball screw 36.
8 a extends toward the door holding side of the arm 28 and is connected to the sliding member 40 . Engagement members 42a and 42b having recesses protrude from one surface of the sliding member 40, and these engagement members 42a and 42b are provided on the upper and lower surfaces of the arm 28 and are substantially parallel to the first ball screw 36. Engages extending guides 44a and 44b.

As clearly shown in FIG. 3, the sliding member 40 has a substantially U-shaped cross section, and a second pole screw 46 rotates between the upper and lower ends protruding toward the door A side. Can be bridged freely. In fact, the vicinity of one end of the second ball screw 46 is rotatably held by a support 47, and furthermore, the end is connected to a rotational drive shaft of a motor 48 for rotating the second ball screw 46. There is. In this case, a locking pin support member 50 that is movable in the vertical direction is screwed into the second ball screw 46 in the third M, and a locking pin 52 that engages with the striker for the door is attached to the support member 50. is supported so that it faces toward door A. Note that the locking pin 52 is extendable and retractable with respect to the striker by a screw 54.

A set of first holding mechanisms 56.56a is attached to the intermediate portion of the arm 28 in order to achieve the function of holding the door via the locking pin 52 and a pair of upper and lower claw pieces, which will be described later. There is. One of the holding mechanisms 56 constituting the first holding mechanism 56.56a includes a drive source mounting plate 58 joined to one side of the arm 28, a set of angle members 60 attached to the drive source mounting plate 58, and 62, the set of angle members 60, 62 sandwich the cylinder 64.

A cylinder rod 66 projects upward from one end of the cylinder 64, and a connecting member 68 is pivotally supported at the tip of the cylinder rod 66. The connecting member 6 is located above the arm 28, extends from one side of the arm 28 toward the other side, and then bends upward at a substantially right angle, and is perforated at its tip. The rod 70 is fitted into the hole. Note that a suction cup 72 connected to the negative pressure side is attached to the tip of the rod 70. On the other hand, at the portion where the connecting portion (O 68 is bent), the bottle 78 is bridged over a pair of holding members 74 and 76 that stand upright from the upper surface of the arm 28, and the bottle 78
8 is rotatably supported.

A holding mechanism 56a is provided near the tip of the arm 28 at a predetermined distance from the holding mechanism 56. In this case, the structure of the holding mechanism 56a is substantially the same as that of the holding mechanism 56, so the reference numeral ``a'' will be added to the holding mechanism 56 and detailed explanation thereof will be omitted. It goes without saying that one of the pair of holding mechanisms 56, 56a can be omitted if necessary.

On the other hand, a set of second holding mechanisms 80.56a is located in the middle of the first holding mechanism 56.56a and is directed downwardly from the arm 28.
80a is attached. Either one of the second holding mechanisms 80.80a includes a drive source mounting plate 82 that is joined to one side of the arm 28, and angle members 84 and 86 that are joined to the drive source mounting plate 82. 8
4 and 86 sandwich a cylinder 88 between them. A cylinder rod 90 projects downward from one end of the cylinder 88, and a connecting member 92 is pivotally supported at the tip thereof.

The connecting member 92 is located below the arm 28 and extends toward the door A, and its tip portion extends upward with a slight bend. A clamp member 94 is swingably attached to the distal end of the connecting member 92 (see FIG. 3). The connecting member 92 is swingably supported at its intermediate portion by a bottle 100 that bridges holding members 96 and 98 that project obliquely from the drive source mounting plate 82.

Note that a holding mechanism 80a is provided near the tip side of the arm 28.
is attached in the same manner as the holding mechanism 80.

In this case, since its configuration is the same as that of the holding mechanism 80, the reference numerals indicating the same components will be suffixed with a and detailed explanation thereof will be omitted.

Next, a housing 102 is disposed at the tip of the arm 28. As can be easily understood from FIG. 2, the casing 102 includes a first side plate 104, a second side plate 106, and a top plate 1.
08 and a bottom plate 1)0.

A connecting member 1) 2 extends from the upper part of the first side plate 104 toward the main body 20, and this connecting member 1) 2 is connected to a pair of housing holding members attached to the upper part of the arm 28. 1)
4a and 1) and 4b, and is rotatably supported by the bin 1) 6. That is, the housing 102 is supported so as to be able to swing freely around the bin 1)6.

On the other hand, a swinging motor 1) 8 for swinging the housing 102 is attached to the lower surface of the arm 28 via a motor mounting angle 120. That is, the rotational drive shaft of the swing motor 1) 8 is connected to one end of a ball screw 122 oriented toward the distal end of the arm 28, and the other end of the ball screw 122 is rotatably connected to the shaft by a bearing member 124. supported. In this case, the ball screw 122
A pushing member 126 is screwed into the pushing member 126, and a tip end 126a of the pushing member 126 is connected to a connecting member 130 via a rod 128. The connecting member 130 is the connecting member 1) 2
It is fixed to the lower side surface of the casing 102 held by the casing 102.

On the other hand, a first claw piece 132 extending toward the door A and having 88 ends is fixed to the upper part of the outer surface of the second side plate 106, and near the lower part, a first claw piece 132, which will be described later, is disposed inside the housing 102. A second pawl piece 134 is provided which is movable in the Z-axis direction by the rotational movement of the ball screw. The second claw piece 134
The drive motor 136 is fixed to a motor holding plate 138 that projects from the second side plate 106 into the housing. In FIG. 2, the rotational drive shaft of the motor 136 extends downward and is connected to one end of a ball screw 140, while the other end of the ball screw 140 is connected to the bottom plate 1.
) is pivotally supported by a bearing member 142 provided at 0. One end of the second claw piece 134 is screwed into the middle of the ball screw 140.

As can be easily understood from FIG. 2, the second claw piece 13
4 is bent and protrudes outward through a hole 106a defined in the second side plate 106, extends in eight directions of the door symmetrically with the first claw piece 132, and terminates. On the second side plate 106 forming the housing 102, holding plates 144 and 146 are formed to protrude and be offset from each other.

A pushing cylinder 148 is supported on the lower surface of the holding plate 144, and a plate body 152 is attached to the distal end of a cylinder rod 150 that extends from the pushing cylinder 148 so as to be freely displaceable.
is engaged. Substantially, this plate body 152 is integrally coupled with a first pressing member 154 into which a pin (to be described later) is press-fitted for coupling the door A to the vehicle body, and is bored in the second side plate 106. It extends toward the door A side through the hole 106b. That is, the first pressing member 154
is below the first claw piece 132 and is located below the first claw piece 132.
2 and extends toward the door A.

On the other hand, a push cylinder 156 is provided on the upper part of the holding plate 146.
is fixed, and a plate body 160 is engaged with a cylinder rod 158 extending from the cylinder 156. The other end side of the plate body 160 protrudes outward through a hole 106a formed in the second side plate 106, and is connected to a second pressing member 162.
join to. The second pressing member 162 is the second claw piece 134
The first pressing member 154 is located above the first pressing member 154 and is arranged to be substantially symmetrical to the first pressing member 154 .

The automobile door assembly device according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

First, as shown in FIG. 3, the vehicle body 20 is moved so that it is located inside the door A to which the assembly is to be performed and the arm 28 is parallel to the door A. Then, the main body 20 and the arm 2B are stopped at a position where the first claw piece 132 at the tip of the arm 28 can be fitted into the U-shaped hinge mounting coupling member 164 at the top of the door by simply moving in the Y-axis direction. let

Next, the swinging motor 1) is oriented so that the second claw piece 134 is oriented to a position where it can be fitted into the U-shaped hinge mounting coupling member 166 at the bottom of the door A by moving in the Y-axis direction.
8 and motor 136 for positioning. Next, the motors 34 and 48 are driven to move the locking pin 52 to a position where it can engage the striker of the door A by moving in the Y-axis direction. In this state, by moving the arm 28 in the direction of the door A, that is, in the Y-axis direction, the first claw piece 13
2, the second claw piece 134, and the locking bottle 52 are connected to the door A.
coupling members 164, 166 and strikers, respectively. And the cylinder 6 of the first holding mechanism 56.56a
4. Operate 64a in the direction of the arrow shown in FIG. As a result, the connecting member 68.68a swings about the pin 78.78a via the cylinder rod 66.66a, and the suction cup 72.72a attached to the tip moves toward the door A. This results in adsorption to the window.

On the other hand, the cylinder 88.88 of the second holding mechanism 80.80a
a in the direction of the arrow, the connecting member 92.92a swings around the pin 100.100a via the cylinder rod 90.90a. Accordingly, the clamp members 94 and 94a disposed at the respective tips swing to hold the lower edge of the door.

Door A, which has undergone the RM installation work through the above operations, is held by the arm 28 of the automobile door assembly device.

Next, the main body 20 is moved to connect the pair of upper and lower coupling members 164 and 166 of the door A to the pair of upper and lower coupling members 1 on the vehicle body side.
Assemble to 68.170. Then, the coupling pins 172, 174, which are temporarily attached, are press-fitted in a state in which they are inserted into the upper and lower mating coupling members 168, 170 on the vehicle body side in advance. That is, by operating the cylinder 148 and raising the cylinder rod 150, the first pressing member 1 is moved through the plate 152.
54 is moved upward, and the upper coupling pin 172 is press-fitted through the first pressing member 154. At the same time, the cylinder 156 is actuated to move the cylinder rod 158 downward, thereby pushing the second pressing member 162 through the plate 160.
is lowered, and the lower connecting pin 174 is press-fitted by the second pressing member 162, thereby connecting the vehicle body and the door.

Next, the cylinders 64.64a and 88.88a of the holding mechanisms 56.56a and 80.80a are operated in the opposite direction to the arrows to release the holding mechanisms 56.56a and 80.80a, and then the arm 28 is released. The door A is moved in the opposite direction to the door A, which is connected to the vehicle body.

Then, the main body 20 is moved to its original position in order to perform the next stage of assembly work.

As described above, the device of the present invention is provided with a holding mechanism that can move to accommodate the difference in door shape caused by different models, and each holding mechanism holds the door after mounting as much as possible. The structure is such that the door can be held in a position where it will not cause any damage. Therefore, the present invention has the advantage that it can easily be applied to many types of doors, is optimal for automatic door assembly, and thereby achieves further improvement in production efficiency. That is, with reference to the first claw piece 132 that fits into the upper coupling member 164 formed on door A, the second claw piece 134 that fits into the lower coupling member 166 of door A is moved up and down by operating the motor 136. on the other hand,
By operating the swinging motor 1) 8 to swing the casing 102, the second claw piece 134 is directed toward the lower connecting member 166 of the door A, and at the same time, the motor mounted on the upper surface of the arm 28 34 to slide the sliding member 40 from side to side in FIG.
The locking pin support member 50 is moved up and down in FIG. 3 by driving a motor 48 attached to one end of the locking pin support member 50. Accordingly, this allows the locking pin 52 to be moved substantially in a plane and directed toward the striker of the door A.

After all, as described above, the first claw piece 132 and the second claw piece 134
By simply moving the locking pin 52 to a predetermined position on the door, it is possible to securely hold a wide variety of doors having different shapes.

On the other hand, the suction cup 72 that constitutes the first holding mechanism 56.56a
and 72a are attached to the window to the door. Since the window portion does not shift slightly even if the shape of the door is slightly different, it can be used for a variety of doors regardless of the type. Further, since the second holding mechanism 80.80a and the clamp member 94.94a that actually abuts against the lower edge of the door A are configured to be compatible regardless of the shape of the door A, the second holding mechanism 80. There is no need to move the .80a individually, and therefore the structure is simplified compared to the conventional one.

As described above, according to the present invention, in the automobile door assembling apparatus for attaching a door that has undergone dovetailing work to a vehicle body,
The door is held by displacing the claw piece that engages with the coupling member of the door and the locking pin that engages with the striker of the door from the inside of the door. The clamp member that abuts the lower edge is configured to ensure its holding operation.

Therefore, since there is no abutment mechanism on the outside of the door with one coating applied to hold it, it prevents damage to the paint film on the outside of the door, and also prevents differences in the shape of the door that occur depending on the model. This can be done with a simple operation of moving one of the holding mechanisms. As a result, it not only has the advantage of being suitable for automating door assembly work and improving production efficiency, but also eliminates the need for jigs to hold doors with different shapes, which results in lower vehicle production costs. This also has the effect of making it possible to reduce the amount of water.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and changes in design can be made without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted front view schematically showing an automobile door assembling device according to the present invention, FIG. 2 is a perspective view showing an arm portion of the automobile door assembling device according to the present invention, and FIG. FIG. 4 is a partially cutaway side view of the arm portion of the vehicle door assembly device according to the present invention, and FIG. 4 is a partially omitted front view showing the arm tip portion of the vehicle door assembly device according to the present invention.

Claims (10)

[Claims] (1) An automobile door assembling device for assembling a door to a vehicle body, the device being capable of displacement with respect to a coupling member that is fixed to the side of the door and engaged with a hinge member provided on the vehicle body side. An automobile door assembly device comprising: a door holding mechanism that engages; and a door support mechanism that engages a lower part of the door and supports the door from below. (2) In the device according to claim 1, the door holding mechanism includes a set of claws fixed to an arm movable in a predetermined direction and engaged with a set of vertically arranged coupling members. An automobile door assembly device comprising parts. (3) An automobile door assembly device according to claim 2, wherein one of the set of pawl members is configured to be freely displaceable relative to the other under the driving action of a drive source. (4) In the device according to any one of claims 1 to 3, the door holding mechanism includes a rod for rotatably engaging the door side coupling member and the vehicle body side hinge member. An automobile door assembly device comprising a pressing member to be fitted and an actuator for displacing the pressing member. (5) An automobile door assembly device according to claim 4, wherein the pressing member is substantially driven and displaced by a cylinder. (6) In the device according to any one of claims 1 to 5, the door holding mechanism is swingably mounted via an actuator disposed on an arm movable in a predetermined direction. Automotive door assembly equipment. (7) In the device according to any one of claims 1 to 6, the door holding mechanism is attached to an arm that is movable in a predetermined direction, and the arm is further attached to the arm that is attached to the window of the door. An automobile door assembly device comprising suction means for auxiliary holding of the door. (8) In the device according to claim 7, the door suction means includes a suction cup connected to the negative pressure side and an arm that moves toward and away from the door by swinging the suction cup. Automotive door assembly equipment. (9) In the device according to any one of claims 1 to 8, the door holding mechanism is attached to an arm that is displaced in a predetermined direction, and the arm further includes a pin that fits into a striker of the door. An automobile door assembly device comprising parts. (10) An automobile door assembly device according to claim 9, wherein the pin member is configured to be freely displaceable along the longitudinal direction of the door.