JP3134713B2 - Door positioning device for sealer application - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door which is opened from a vehicle for assembling, coating, sealing and the like inside the vehicle at a predetermined working position when the vehicle is conveyed along a vehicle manufacturing line. The present invention relates to a sealer application door positioning device that performs positioning.

[0002]

2. Description of the Related Art In a vehicle assembling process, a door mounted on a vehicle body is moved while being held by a hanger conveyed along a conveying line. Then, while the door is being conveyed by the hanger, various devices such as a window regulator are assembled in the door. The assembling work of these various devices is performed through a working opening formed inside the door, and the working opening is completed after the assembling work is completed so that water from the outside does not enter the passenger compartment through this working opening. A water proof cover is attached to cover.
The work of mounting the water proof cover involves applying a sealer as an adhesive and a sealant to the inner peripheral portion of the door while positioning the hanger holding the door, and fixing the water proof cover using the sealer. I have.

FIG. 9 schematically shows a conventional sealer application door positioning apparatus.

As shown in FIG. 9, a transfer rail 001 is provided above the door along a transfer line, and a hanger 002 for holding a door D is movably mounted on the transfer rail 001 . In this hanger 002, body 003 along the direction of movement before and after the moving body 00
The main body 003 is movably supported on the transport rail 001 by a support member 4,005 .
006 is suspended, supporting column 007 is mounted which is biased movement and inward freely moved horizontally in the support 006. The support 006 and the support column 007 respectively have mounting pieces 008, 00 protruding laterally from the transport line.
Clamp member 01 for holding door D by 9,010
1,012,013 are attached. Furthermore, while the hook 014 in front of the moving body 004 is attached, the engaging piece 015 that engages and disengages to this hook 014 is attached to a predetermined position of the transfer rails 001. The door positioner 021 is arranged on the side of the conveying line of the door, holding arm 02 for restraining the support 006 of the hanger 002 the door D is held by an unillustrated driving means
Two .

Accordingly, in a state the door D is held by the hanger 002, stop by the hanger 002 is moved along the transfer rail 001, the hook 014 at a predetermined working position is engaged with the engaging piece 015 I do. Then, the door positioning device 021 rotates the holding arm 022 by a driving device (not shown), and restrains the hanger 002 on which the door D is held by the holding arm 022 . With the door D positioned as described above, a work robot (not shown) applies a sealer S to a predetermined portion of the door D. Thereafter, when the sealer coating operation is completed, the door positioning device 021 releases the restraint of the hanger 002 , and the locking piece 015 retreats from the transport rail 001, whereby the locking with the hook 014 is released. The hanger 002 holding the door D moves along the transport rail 001 again, and the door D is transported to the next step.

[0006]

In the conventional sealer application door positioning device 021 described above, the hanger 002 holding the door D is held by the holding arm 022 to position the door D, and this positioning is performed. Sealer application work was performed on the door D that was set. However,
The hanger 002 that is movable while holding the door D is formed by welding pipes or the like by welding. The manufacturing accuracy is not very good, and the hanger 002 is deformed due to long-term use. Therefore, this hanger 0
Even if the door 02 is restrained, the door D cannot always be positioned at a regular position. Therefore, there is a problem that the position of the sealer applied by the work robot varies, and it is not possible to appropriately apply the sealer to a predetermined portion of the door D.

In order to cover variations in the position of the sealer applied to the door D, it is conceivable to increase the amount of the sealer discharged from the robot. However, the amount of use of the sealer increases, leading to an increase in cost. There's a problem.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a sealer coating door positioning apparatus which improves door positioning accuracy.

[0009]

According to the present invention, there is provided a sealer application door positioning apparatus for achieving the above-mentioned object, comprising a step of holding a vehicle door conveyed along a vehicle production line in an upright state held by a hanger. A door inclining means for inclining the door at a predetermined angle at the work position, wherein the door is inclined at a predetermined angle at the work position. Door vertical positioning means for moving the inclined door upward to release the holding by the hanger and for positioning the door vertically, and for positioning the door inclined at a predetermined angle in the transport direction before and after the tilting means. Before and after the door is positioned at a predetermined angle by the vertical positioning means and the vertical positioning means. Is characterized in that comprises a coating means for applying a sealer to a predetermined position of the door.

Further, in the sealer application door positioning device of the present invention, the door vertical positioning means holds a lower part of the door inclined at a predetermined angle by the inclination means and moves upward and downward. An upper holding member for holding an upper portion of the door to prevent the door from being lifted up, and the door front / rear positioning means includes a pair of front and rear holding members for holding the door from front and rear in a transport direction. The door is held and positioned in at least four directions by the lower holding member and the upper holding member, and the front and rear holding members.

Further, in the sealer application door positioning device of the present invention, a plurality of the lower holding member and the upper holding member, and a plurality of front and rear holding members are provided according to the size and shape of the door. Is what you do.

[0012]

The vehicle door conveyed along the vehicle manufacturing line while standing on the hanger stops at the predetermined work position, and at this work position, the door is first tilted by the door tilting means at the predetermined angle. . Then, in the inclined state of the door, the door is moved upward by the door vertical positioning means, the door is held by the hanger, and the door is positioned vertically. Perform front and rear positioning. When the door is positioned in this manner, the application means approaches and applies the sealer to a predetermined position of the door by the application means.

The door is positioned at a predetermined position by being clamped from four directions by the lower holding member, the upper holding member, the front and rear holding members, and the door can be positioned with high accuracy.

A plurality of lower holding members and upper holding members, and a plurality of front and rear holding members are provided according to the size and shape of the door to be conveyed, so that a single line can position a large number of vehicle types of doors. be able to.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a front view showing a sealer application door positioning apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the sealer application door positioning apparatus of this embodiment, and FIG. 3 is a sealer application door positioning. FIG. 5 is a plan view of the apparatus, FIG. 4 is a front view showing the lower holding member, FIG. 5 is a sectional view taken along line V-V of FIG. 4, FIG. 6 is a schematic view showing a door transfer line, FIG. 3 shows a side view of the door transport hanger.

First, a description will be given of a door transfer line to which the sealer application door positioning apparatus of this embodiment is applied. As shown in FIG. 6, the door transport line L is provided at a predetermined position in the assembly factory, and the door D held by the hanger 11 is transported along the door transport line L. I have. The doors D are transported as a pair on the left and right sides, and the left and right doors D are branched along door transport lines L1 and L2, which are branched into two, and various operations are performed separately. The sealer application door positioning device 31 and the sealer application robot 32 of the present embodiment are provided corresponding to the door transport lines L1 and L2, and work simultaneously on the door D transported to a predetermined position.
The sealer application robot 32 applies a sealer as an adhesive and a sealing material for attaching a waterproof waterproof cover to the inner peripheral portion of the door. have.

Here, the hanger 11 will be described.
As shown in FIGS. 7 and 8, a transport rail 12 is provided above the door along a transport line L, and the hanger 1 is provided.
The main body 13 is movably supported on the transport rail 12 by front and rear moving bodies 14 and 15. An L-shaped support 16 is suspended from the hanger body 13 and is rotatably connected to the side. The support 16 is provided with a support column 17 which is horizontally movable and urged inward. It is installed. The support members 16 and the support pillars 17 have mounting pieces 18, 19, 20, and
21 for holding the door D by the clamp members 22 and 2
3, 24, 25 are attached. Clamp member 23
The mounting piece 19 is rotatable and urged in a counterclockwise direction in FIG. A holding roller 26 that holds the hanger 11 in an inclined state is attached to a lower portion of the support 16. On the other hand, a hook 27 is attached to the front moving body 14, and a locking piece 28 that is engaged with and disengaged from the hook 27 is attached to a predetermined position of the transport rail 12.
The locking piece 28 can be operated by a cylinder 29.

Therefore, the door D is connected to each of the lower clamp members 2.
2 and each of the front and rear clamp members 24, 2
The hanger 11 is held by the hanger 11 while being held between the movable rails 5, and is moved along the transport rail 12 by the moving bodies 14 and 15 in this state. Then, the hanger 11 is stopped by the hook 27 being locked to the locking piece 28 at the predetermined working position, where the door D is positioned by the sealer coating door positioning device 31 described above, and the sealer coating robot 32 The sealer is applied to the door D. Thereafter, when the sealer coating operation is completed, the cylinder 29 is operated, the locking piece 28 is retracted, the locking with the hook 27 is released, and the hanger 11 holding the door D is transported again along the transport rail 12. Is done.

The sealer application door positioning device 31 of this embodiment will be described below.

As shown in FIGS. 1 to 3, the sealer application door positioning device 31 of the present embodiment moves the door D held by the hanger 11 together with the hanger 11 at the working position where the hanger 11 is stopped. A door tilt holding mechanism 41 that holds the door D at a predetermined angle, and a door D tilted and held at a predetermined angle by the door tilt holding mechanism 41 is moved upward to release the holding by the hanger 11 and to move the door D up and down. It has a door vertical positioning mechanism 42 for positioning, and a door longitudinal positioning mechanism 43 for moving the door D, which is tilted and held at a predetermined angle by the door tilt holding mechanism 41, in the front-rear direction to position the door D in the front-rear direction. ing.

The door vertical positioning mechanism 42 moves the door D upward to release the holding by the hanger 11, and holds the upper part of the door D raised from the hanger 11 to lift the door D up. It is composed of an upper holding member 45 for prevention. The front / rear positioning mechanism 43 presses the door D from the front in the conveying direction, and the rear holding member 47 presses the door D from the rear in the conveying direction to clamp the door D with the front holding member 46. It is composed of Therefore, the door D held by the hanger 11 is connected to the lower holding member 44 and the upper holding member 4.
5. The front holding member 46 and the rear holding member 47 sandwich and position from four directions.

That is, in the door inclination holding mechanism 41, beside the predetermined working position where the hanger 11 holding the door D stops, the rodless cylinder 51 is placed on the floor along the direction orthogonal to the door conveying direction. It is arranged. In this rodless cylinder 51, a pressing member 54 is mounted on a movable moving member 52 via a supporting rod 53, and the hanger 11 is pressed by the pressing member 54, and the hanger 11 is set at a predetermined inclination angle with the upper portion as a fulcrum. can be inclined by θ. When the hanger 11 is tilted by a predetermined tilt angle θ, a support bar 55 is abutted against the holding roller 26 of the hanger 11 at this work position, and the door D held by the hanger 11 is tilted. Can be held in position.

The lower holding member 44 is disposed below the door D held at a predetermined tilt angle θ by the door tilt holding mechanism 41. As shown in detail in FIGS. 4 and 5, a guide member 63 is fixed to a base 61 fixed on the floor via a support plate 62.
An L-shaped moving plate 6 is provided on the movable plate 3 via a guide rail 64.
5 is movably supported in a direction inclined by a predetermined inclination angle theta ₁ with respect to the perpendicular line. An air cylinder 67 is attached to the support plate 62 via a bracket 66, and a distal end of a drive rod 68 of the air cylinder 67 is connected to the moving plate 65. And this moving plate 65
A pair of support rollers 69 are rotatably mounted on a central outer peripheral surface Each support roller 69 is inclined with respect to the perpendicular line to allow holding the lower end of the door D by a predetermined inclination angle theta ₂ is V It is shaped like a letter.

Accordingly, when the air cylinder 67 is actuated to advance the drive rod 68, the movable plate 65 moves upward, and the pair of support rollers 69 attached to the movable plate 65 also hold the upper door from the retracted position below. Can be moved to a position.

In this embodiment, the positioning can be performed for doors D having different sizes and shapes, and an auxiliary supporting roller 70 and an auxiliary supporting member 71 are provided adjacent to the supporting roller 69. . The auxiliary support roller 70 is mounted on a moving plate 72, which is movably supported by a guide rod 73 and can be moved by an air cylinder 74. The auxiliary support member 71 is attached to a moving plate 75, which is movably supported by a guide rod 76 and can be moved by an air cylinder 77.

The upper holding member 45 is disposed to face the upper holding member 44 upward. As shown in FIGS. 1 to 3, a moving base 82 is supported on a base 81 erected so as to straddle the front and rear of the door D from the floor surface so as to be movable in a direction orthogonal to the door transport direction, and , Can be moved by an air cylinder 83. A lift 85 is supported on the movable table 82 by a pair of guide rods 84 so as to be movable up and down, and can be moved by an air cylinder 86. And this lift 8
The lower lifting table 88 is supported by the pair of guide rods 87 so as to be able to move up and down, and can be moved by an air cylinder 89. A support table 92 to which a holding member 91 is attached by a bearing 90 is mounted on the lower lift table 88.
Are rotatably mounted.

Therefore, when the air cylinder 83 is driven,
The moving table 82 moves, and the holding member 91 can move in a direction orthogonal to the door conveying direction. Also, when the air cylinder 86 is driven, the lift 85
Can be moved up and down to move the holding member 91 toward and away from the door D. Further, when the air cylinder 89 is driven, the lower elevating table 88 moves up and down with respect to the elevating table 85, so that the holding member 91 can approach and separate from the door D.

The front holding member 46 is disposed forward of the door D in the transport direction, and the rear holding member 47 is disposed rearward of the door D in the transport direction.
The door D can be positioned in the front-rear direction by pressing the door D from the front and rear by the rear holding member 47 and clamping the door D.

That is, in the front holding member 46, the door D
A support 101 is erected in front of the support direction, and a guide cylinder 102 is fixed to an upper portion of the support 101. A moving rod 103 is horizontally movable in the guide cylinder 102 along the transport direction of the door D, and can be moved by an air cylinder 104. A holding roller 105 for holding the front part of the door D is attached to the tip of the moving rod 103. On the other hand, at the rear of the transport direction of the door D, the movable support 113 is horizontally movable along the transport direction of the door D by the guide rail 112 on the support base 111,
In addition, it can be moved by the air cylinder 114. A holding roller 115 for holding a rear portion of the door D is attached to an upper portion of the moving support 113. Reference numeral 116 denotes a guide for calling the door D.

Therefore, when the air cylinder 104 is driven,
The holding roller 105 moves forward via the moving rod 103, and the door D
Press the front of the On the other hand, when the air cylinder 114 is driven, the holding roller 115 moves forward via the movable support 113 and presses the front part of the door D. As a result, the holding roller 105 and the holding roller 115 press the door D from front and rear, and the door D can be sandwiched and positioned in the front and rear direction.

In FIGS. 1 to 3, reference numeral 121 denotes a locking rod for preventing the movement of the clamp member 23, which can be rotated by a cylinder 122. This locking rod 121 is used to hold the position of the clamp member 23 when positioning the door when the clamp member 23 is used for the door aging.

The operation of the sealer application door positioning device 31 of this embodiment having the above-described configuration will be described.

As shown in FIG. 6, the door D is connected to the hanger 11.
Are transported along the door transport line L and are branched along the door transport lines L1 and L2 on the way to perform various operations. That is, as shown in FIG. 8, when the hanger 11 holding the door D is transported to a predetermined position, the door D is stopped by the hook 27 being locked by the locking piece 28 of the hanger 11, and the door D is stopped here. The door D is positioned by the sealer application door positioning device 31, and the sealer is applied to the door D by the sealer application robot 32.

As shown in FIGS. 1 to 3, first, the door D stopped at the working position is moved and held at a predetermined inclination angle by the door inclination holding mechanism 41. That is, the rodless cylinder 51 is operated with respect to the door D, and the pressing member 54 is pressed.
Is moved in a direction orthogonal to the door transport direction, the pressing member 54 presses the hanger 11. Then, the hanger 11 moves by a predetermined inclination angle θ with the upper part as a fulcrum, the holding roller 26 abuts on the support bar 55, and the hanger 11 holding the door D is held at the inclined position.

Next, the door D held on the hanger 11 by the lower holding member 44 and the upper holding member 45 of the door vertical positioning mechanism 42 is pressed from above and below, and the front holding member 46 and the rear The door D is pressed from the front and rear by the holding member 47,
The door D held by the hanger 11 is sandwiched and positioned in four directions by the lower holding member 44, the upper holding member 45, the front holding member 46, and the rear holding member 47.

That is, when the air cylinder 67 of the lower holding member 44 is operated to raise the drive rod 68 with respect to the door D on the hanger 11 which is tilted and held at a predetermined tilt angle by the door tilt holding mechanism 41, The pair of support rollers 69 move up together with the moving plate 65. Then, the support roller 69 holds the lower edge of the door D and slightly raises the door D, thereby releasing the holding of the door D by the clamp member 22 of the hanger 11 and simultaneously moving the door D in the vertical direction. Perform positioning. Further, when the moving cylinder 103 is moved by driving the air cylinder 104 of the front holding member 46, the holding roller 105 moves forward. Then, the holding roller 105 holds the front edge of the door D and slightly moves the door D to release the holding of the door D by the clamp member 24 of the hanger 11 and to move the door D in the front-rear direction. Perform positioning.

Then, the door D is moved by the lower holding member 44.
When the positioning of the door D in the front-rear direction is performed by the front holding member 46 and the vertical movement of the door D is performed by the front holding member 46, the air cylinder 114 of the rear holding member 47 is driven to move the movable support 113, and the holding roller is moved. 115 moves forward.
Then, the holding roller 115 presses and holds the rear edge of the door D, thereby holding the door D with the holding roller 105 of the front holding member 46 from front and rear. When the air cylinder 86 or 89 of the upper holding member 45 is operated to lower the elevating platform 85 or the lower elevating platform 88, the holding member 91 is lowered together with the lower elevating platform 88. Then, the holding member 91 presses and holds the upper edge of the door D,
The door D is prevented from rising.

When the door D thus held by the hanger 11 is held and positioned and held in four directions by the lower holding member 44, the upper holding member 45, the front holding member 46, and the rear holding member 47, the sealer is applied. Robot 3
2, the sealer S is discharged from the gun 33 as an adhesive / sealant for mounting the water proof cover from the gun 33, and the sealer S is applied to the inner peripheral portion of the door.
Thereafter, when the sealer coating operation is completed, the holding members 44, 45, 46, and 47 are operated to release the positioning and holding of the door D, and the door D is held by the hanger 11 again. When the tilt holding of the door D by the door tilt holding mechanism 41 is released, the hanger 11 held by the door D enters a movable upright state. And
The locking piece 28 of the hanger 11 to the transport rail 12 is released, and the hanger 11 holding the door D is transported again along the transport rail 12.

[0040]

As described above in detail with the embodiments, according to the sealer application door positioning apparatus of the present invention, the vehicle door on the hanger conveyed along the vehicle production line is subjected to a predetermined operation. The door is tilted at a predetermined angle by the tilting means, the door tilted at a predetermined angle is moved upward by the door vertical positioning means to release the holding by the hanger, and the door is positioned vertically. The positioning of the door in the transport direction is performed by the front and rear positioning means, and the sealer is applied to a predetermined position of the door thus positioned by the application means, so that the door is directly positioned without holding the hanger. By improving the positioning accuracy of the door, the working accuracy of the sealer application work can be improved. Is erected and transported, by applying to be tilted only when sealer coating, thereby improving the coating efficiency to prevent sagging of the coating when the sealer is possible reduce the transporting space.

According to the sealer application door positioning apparatus of the present invention, the door vertical positioning means holds the lower part of the door inclined at a predetermined angle by the inclination means and moves upward with the pair of lower holding members and the door. An upper holding member for holding the upper portion to prevent the door from being lifted up; a door front / rear positioning means having a pair of front and rear holding members for holding the door from front and rear in the transport direction; In addition, since the door is held and positioned by at least four directions by the upper holding member and the front and rear holding members, the door can be accurately and reliably positioned.

According to the sealer application door positioning apparatus of the present invention, a plurality of lower holding members and upper holding members, and a plurality of front and rear holding members are provided according to the size and shape of the door. Thus, the doors of a large number of vehicle types can be positioned, and workability can be improved.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a sealer application door positioning device according to an embodiment of the present invention.

FIG. 2 is a side view of the sealer application door positioning device of the present embodiment.

FIG. 3 is a plan view of the sealer application door positioning device.

FIG. 4 is a front view illustrating a lower holding member.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a schematic diagram illustrating a door transport line.

FIG. 7 is a front view of the door transport hanger.

FIG. 8 is a side view of the door transport hanger.

FIG. 9 is a schematic view of a conventional sealer application door positioning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Hanger 12 Transport rail 22,23,24,25 Clamping member 31 Sealer application door positioning device 32 Sealer application robot 41 Door inclination holding mechanism 42 Door vertical positioning holding mechanism 43 Door left and right positioning holding mechanism 44 Lower holding member 45 Upper holding Member 46 Front holding member 47 Rear holding member D Door

Claims (3)

(57) [Claims] 1. A sealer application door positioning device that stops a vehicle door conveyed along a vehicle manufacturing line in a standing state held by a hanger at a predetermined work position and positions the door for sealer application work. In the apparatus, a door inclining means for inclining the door at a predetermined angle in the working position, and moving the door inclined at a predetermined angle upward by the inclining means to release the holding by the hanger and to move the door up and down Door vertical positioning means for positioning; door longitudinal positioning means for positioning the door tilted to a predetermined angle in the conveying direction by the tilting means; and door vertical positioning means for positioning the door at a predetermined angle by the vertical positioning means and the door longitudinal positioning means. Coating means for applying a sealer to a predetermined position of the door. Door positioning device. 2. The sealer application door positioning device according to claim 1, wherein said door vertical positioning means holds a lower portion of said door tilted at a predetermined angle by said tilting means and moves upwardly. And an upper holding member for holding the upper portion of the door to prevent the door from being lifted. The door front / rear positioning means includes a pair of front and rear holding members for holding the door from front and rear in the transport direction. A sealer application door positioning device, having the lower holding member and the upper holding member, and the front and rear holding members to hold and position the door in at least four directions. 3. The sealer application door positioning device according to claim 1, wherein a plurality of said lower holding member and upper holding member, and a plurality of front and rear holding members are provided according to the size and shape of said door. Characteristic door positioning device for sealer application.