JPH0541984Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used, for example, in a door-dedicated fitting line in a vehicle body assembly line for automobiles and other vehicles, when attaching an inside screen to a door that has been conveyed by a hanger. , relates to a door support device installed in an adhesive application station that applies adhesive to the door.

(Prior art) Conventionally, in the body assembly process of automobiles and other vehicles, an inside screen (plastic film) is pasted with adhesive on the door inner panel after the door fittings have been assembled, and the service hole of the door inner panel is pasted with adhesive. It is common practice to prevent rainwater, dust, etc. from entering the door body by covering it with an inside screen.

As disclosed in, for example, Japanese Utility Model Application Publication No. 58-183278, the adhesive coating device for the door inner panel moves a nozzle for discharging adhesive according to a preset adhesive coating pattern. It is known that an adhesive is applied to a predetermined area of a door inner panel by applying the adhesive to the door inner panel.

By the way, in the door-dedicated outfitting line for automobiles and other vehicles, the door is usually carried on a hanging hanger, and outfitting parts are assembled on the door being carried. . In this case, the door is held with a certain degree of positioning relative to the hanger. That is, for example, one end of the door may be brought into contact with a fixed abutment member, and the other end may be clamped by a clamping means.

However, when the door is positioned on the hanger and transported as described above, and the adhesive is automatically applied, for example, using the adhesive applicator as in the previous example, the dimensional accuracy of the hanger is low. Therefore, the positioning accuracy of the door is insufficient, and more accurate positioning is required, and if the positioning is performed forcefully, there is a risk of damaging the hanger.

Therefore, for example, the door held by the hanger is once lifted from the hanger and delivered to the adhesive application station, and after being positioned at the proper position at the application station, the application robot applies the pre-memorized adhesive to the door. A predetermined coating operation is performed based on the regular operation position data, and then the door after the application operation is transferred to the hanger again and transported to the next operation process.

However, in the delivery of the door, when the door is returned to the hanger, the positional relationship between the hanger and the door will be different from the initial position due to the positioning at the coating station, so the door after treatment will be placed in the initial position relative to the hanger. Moreover, since the positional relationship between the two is not constant, it becomes difficult to transfer the paper to the hanger, and an extra step is required to detect the position of the hanger.

Regarding this point, when the door is transported by a hanger and the door is lifted from the hanger and positioned, the position of the door held in a predetermined posture is measured by a detection means, and the deviation from the reference position is detected. It may be possible to eliminate the occurrence of misalignment when returning the door to the hanger after processing by correcting it on the coating device side.

(Problem to be solved by the invention) However, when lifting the door from the hanger as described above, since the hanger positions and holds the door as described above, as the door moves upward. As a result, a portion of the door rubs against the positioning abutment member.

Therefore, if the abutment member is made of metal, it will damage the door, and if it is made of rubber, the elasticity of the rubber material will decrease over a long period of use due to friction between the two, and the accuracy of positioning the door will decrease. At the same time, the secure holding of the door is impaired and the door vibrates. Furthermore, when a door slides against deteriorated rubber material, there is a problem in that the rubber material adheres to the door and stains or damages the painted surface.

Therefore, in view of the above circumstances, the present invention aims to provide a door support device for use in a dedicated outfitting line that eliminates friction between the door and the abutting member when lifting the door from the hanger. It is.

(Means for Solving the Problems) The door support device of the present invention is carried while being held by a hanger that includes an abutment member that receives one end of the door and a clamping means that clamps the other end of the door during transportation. Regarding positioning and supporting the door,
tilting direction positioning means for tilting the hanger by pressing the hanger from the door outer side so as to tilt the door by a set angle, and supporting and positioning the outer panel side of the door; and lifting the door above the hanger to remove and set the door. A door lift means for positioning and supporting the door at a height position and lowering the door to place it on the hanger after completion of work, a position detecting means for detecting the position of the door with respect to the transport direction, and a working means based on the position detection of the position detecting means. control means for modifying the operation of the door, and the door lift means is characterized in that it is provided with a regulating mechanism for regulating the upward path of the door in a direction away from the abutting member provided on the hanger.

(Function) According to the above-mentioned door support device, the door, which is held by the hanger on the door-dedicated outfitting line and transported to a specific station, is positioned and supported by the tilting direction positioning means so that the tilting angle becomes the set angle. At the same time, the regulating mechanism restricts the door to rise away from the contact member of the hanger, and the door is lifted by the door lift means and positioned and supported at a set height position. After this positioning, the door is transported. The position in the direction is detected by the position detecting means, and the working means is operated based on the working position data corrected based on the detected position. After processing, the door is returned to its initial position on the hanger by a reverse operation to that described above, and then transported out.

(Example) Hereinafter, an example of the present invention will be described along with the drawings. FIG. 1 shows an adhesive application station in a door fitting line of an automobile assembly line.

Door support device 1 is installed in the adhesive application station S.
This support device 1 is used to hold the door B, which has been suspended from the hanger A and transported by the overhead conveyor type transport conveyor 2 on the door dedicated fitting line, after the fitting parts have been assembled, to its inner panel b ₁ . Apply adhesive to the door inner panel to cover the service hole formed in the door with plastic film.
b This is for positioning and supporting in order to coat the outer periphery of ₁ . An adhesive is applied to the outer circumference of the inner panel b ₁ of the door B, which is positioned and supported by the door support device 1, by an adhesive application robot 3 serving as a working means.

A hanger arm 5 of the hanger A is swingably connected to a base 4 which is movably secured to the conveyor rail 2a, and as shown in FIG. A vertical member 5b that is curved toward the outer panel _b2 and extends in the vertical direction is provided, and a horizontal member 5c that extends in the door transport direction D is provided in the middle of this vertical member 5b.
The lower end of the intermediate vertical member 5d that extends below the lower end of the vertical member 5b and the horizontal member 5c extends below the door B. The lower part of the intermediate vertical member 5d is curved below the door B, and its tip is directed upward. The lower end support part has a receiver 6 for receiving the lower end of the door B. Further, an abutting member 7 for receiving one end of the door B is provided at one end of the horizontal member 5c, and a clamping means 8 for clamping the other end of the door B is provided at the other end.

As shown in FIG.
The base 7c of the support member 7b is movably attached to the horizontal member 5c of the hanger arm 5, and the support member 7b is attached to the horizontal member 5c of the hanger arm 5.
It is provided so as to be able to selectively engage with a plurality of locking grooves 10a of an engaging member 10 arranged in parallel on the sides of the door, and its stopping position is configured to correspond to changes in door size. In front of the abutting member 7 is a hanger A.
Roller 11 supporting the back of door B placed on
is installed.

On the other hand, as shown in FIG.
2 is pivotally supported by a pivot pin 13, and this swing plate 12 is capable of a minute amount of swing allowed by a regulating pin 14. The first spring 15 is connected,
It is biased in the tensile direction. One end of a proximal end of a clamp arm 16 is rotatably supported on the swing plate 12, and a rubber member 16a that comes into contact with the other end of the door B is provided at the tip of the clamp arm 16. An operating lever 17 is rotatably connected to the other end of the proximal end of the clamp arm 16, and the operating lever 17 and the swing plate 16
are connected via a link 18. Also,
A second spring 19 is disposed between the operating lever 17 and the swing plate 12. This second spring 19 is designed to maintain the open position of the clamp arm 16 when the operating lever 17 is opened as shown by the imaginary line, and to maintain the clamp arm 16 in the clamped position (solid line) when the operating lever 17 is clamped. acts to move beyond the neutral point. On the other hand, the first spring 15 is applied to the door B which has clamped the clamp arm 16 at the clamp position.
It acts so as to bias the oscillating plate 12 in a pushing direction via the swing plate 12. Furthermore, a roller 20 is provided near the clamping means 8 to support the back surface of the door B placed on the hanger A. The operating lever 17 of the clamping means 8 is operated by an operating cylinder (not shown).

On the other hand, the door support device 1 includes a tilt direction positioning means 22 for positioning and supporting the door B held by the hanger A and transported to the adhesive application station S from the door outer side so as to tilt the door B by a predetermined angle. The tilting direction positioning means 22
As shown in FIG. 2, the piston rod 23a
A pusher cylinder 23 is horizontally supported on a base 24 with its tip facing toward the door outer side, and a piston rod 25 is also mounted above both pusher cylinders 23.
It consists of a support cylinder 25 supported horizontally on a base 24 with the tip a facing toward the door outer side,
The hanger arm 5 of the hanger A that supports the door B at the door support position of the adhesive application station S is pressed by the pressing member 26 at the tip of the piston rod 23a by the extension operation of each of the pusher cylinders 23,
While tilting the hanger A as shown by the imaginary line (the one on the right) in the figure, the support cylinder 2
5, the support member 27 at the tip of the piston rod 25a supports the outer panel _b2 side of the door B, thereby positioning and supporting the door B in a state where it is tilted by a set angle toward the door outer side.

Further, a door lift means 29 for pushing the door B upward and positioning and supporting it at a set height position is disposed at a position opposite to the falling direction positioning means 22. As shown in FIG.
It is equipped with an elevating cylinder 32 fixed to the lower surface. A support plate member 33 that supports a plurality of (three in the figure) receiving members 36 that support the lower end of the door B is fixed to the tip of the piston rod 32a that extends in the vertical direction of the lifting cylinder 32.
Guide rods 34 extending downward are fixed to both ends of the cylinder, and the guides 34 are fitted into a guide cylinder member 35 on the table 31 side so as to be slidable in the vertical direction, so that the elevating cylinder 32 can be extended. By raising and lowering the support plate member 33, the door B, which is tilted and supported by the tilting direction positioning means 22, is slightly pushed upward to be positioned and supported at a set height position.

Further, the door lift means 29 includes a hanger A.
A regulating mechanism 37 is provided for regulating the ascending path of the door B in a direction away from the abutting member 7 provided on the door B, that is, in a direction opposite to the door transport direction D.
In the case shown in the figure, the lifting cylinder 32, guide rod 34, and guide cylinder member 35 of the door lift means 29 are shown.
is installed at an angle toward the rear with respect to the door conveyance direction D.

Further, at the downstream end of the table 31 of the support stand 30 in the door transport direction D (on the left side in FIGS. 1 and 3), a transport direction position detection means for detecting the position of the door B in the transport direction D is provided. 39 is supported and disposed on the upper end of a column 40 extending in the vertical direction. As shown in FIGS. 7 to 9, the transport direction position detection means 39 is fixed to the base 41 at the upper end of the support column 40 via a bracket 42, and receives this position signal after the positioning by the door lift means 29 is completed. A slide table 45 is connected to the tip of a horizontally extending piston rod 43a of the drive cylinder 43 via a bracket 44. It is adapted to move horizontally on the base 41 in the door transport direction D by the expansion and contraction operation. Further, a light emitting sensor 46 and a light receiving sensor 47 are arranged at a predetermined interval at the tip of the slide table 45, and the door B conveyed to the positioning position of the adhesive application station S is detected by the light emitting sensor 47.
6 and the light receiving sensor 47 to block the light emitted from the light emitting sensor 46 to the light receiving sensor 47, thereby detecting that the door B is located at the positioning position. Further, one end of the slide table 45 is provided with a door in the conveying direction D.
A rack 48 is fixed to the rack 48, and a pinion 50 fixed to a rotating shaft 49a of an encoder 49 consisting of a pulse motor or the like is meshed with the rack 48.
The amount of movement of the slide table 45 (rack 48), which moves in the door transport direction D as the drive cylinder 43 is extended, is converted into the amount of rotation of the pinion 50 and output to the control means 51.

The control means 51 inputs the position signal of the door B detected by the conveyance direction position detection means 39, and calculates the regular working position data in the door conveyance direction D stored in advance and the positioning data based on the position signal. The fixed regular work position data is corrected based on the data error, and the adhesive application robot 3 is operated to perform a predetermined application work on the inner panel b1 of the door _B based on this data.

Next, the procedure for positioning the door B according to the above embodiment will be explained.

First, the door B, which has been fitted out at the position of the adhesive application station S in the door fitting line, is clamped against the hanger A in the transport direction D by the abutting member 7 at one end and the clamping means 8 at the other end. It is supported and transported. When the hanger A reaches a predetermined position, the clamping means 8 is opened, and then the tilting direction positioning means 2
The second pusher cylinder 23 is extended to press the hanger arm 5 of the hanger A with the pressing member 26 at the tip of each piston rod 23a, and at the same time, the support cylinder 25 is extended and the support member 27 at the tip of the piston rod 25a is pressed against the hanger arm 5 of the hanger A. Supporting the outer panel b ₂ of door B, move door B along the imaginary line in Figure 2 (the one on the right).
As shown in , the door is positioned and supported at a position tilted by a set angle from the door outer side.

Next, the lifting cylinder 3 of the door lift means 29
2 is extended and the support plate member 33 is raised to a predetermined height position by the operation of the regulating mechanism 37 toward the rear diagonally upward in the conveying direction, and the receiving member 3
6, the door B is pushed upward away from the abutting member 7. In this state, the door B is removed from the hanger A, and the falling direction positioning means 22 and the door lift means 29 position the door B in the falling direction and height direction at the adhesive application station S.

Furthermore, when the positioning by the door lift means 29 is completed, this positioning signal is output to the drive cylinder 43 of the transport direction position detection means 39, and the drive output 43 is output based on this output signal.
is extended. As a result, the slide table 45 slides toward the door B, and when the door B enters between the light emitting sensor 46 and the light receiving sensor 47 and blocks the light emitted from the light emitting sensor 46, the extension operation of the drive cylinder 43 stops. At the same time, the encoder 49 detects the amount of movement of the slide table 45 that has slid during this period. Then, this detection signal is output to the control means 51, and an error between the regular working position data stored in advance in the control means 51 and the positioning data based on the position detection signal is determined, and this data error causes the above-mentioned regular work position data to be calculated. The work position data is corrected, and based on this data, the adhesive application robot 3 performs a predetermined adhesive application work on the outer periphery of the inner panel b ₁ of the door B.

When the adhesive application work for the door inner panel _b1 is completed in this manner, the driving cylinder 4 of the conveying direction position detection means 39 is then operated in the reverse manner.
3 is contracted to move the slide table 45
Then, the lifting cylinder 32 of the door lift means 29 is contracted to release the door B from the support state by the receiving member 36, and the door B is transferred to the hanger A, and then, the pusher cylinder 23 and the support cylinder 25 of the falling direction positioning means 22 are both contracted to restore the support posture of the door B to the state shown by the imaginary line on the left side of Fig. 2, and the door B is transported to the next work process.

In this way, in the above embodiment, the door B, which is positioned in two directions by the falling direction positioning means 22 and the door lifting means 29, is not moved in that state.
Since the control means 51 operates based on the position detection signal of the conveyance direction position detection means 39, the application operation of the adhesive application robot 3 is appropriately set to the normal working position, so that the door B is properly positioned in the conveyance direction D. Even if the inner panel _b1 of door B is deviated from the position of It can be easily delivered to door A, and door B can be smoothly transported to the next work process.

In the above embodiment, the regulating mechanism 37 provided in the door lift means 29 for regulating the ascending path of the door B is constructed by arranging the elevating cylinder 32 and the guide rod 34 at an angle. The support plate member 33 may be provided to be tiltable, and the support plate member 33 may be tilted by raising one end part on the way up using a cam mechanism or the like, and the door B may be slightly rotated and raised.
Other known mechanisms can be employed as appropriate.

(Effect of the invention) According to the invention as described above, by providing the door lift means with a regulating mechanism for regulating the rise of the door away from the abutting member, when lifting the door from the hanger, the door and the hanger are This prevents sliding contact between the contact member and the hanger, preventing accelerated deterioration of the contact member and staining or damage to the coated surface of the door due to sliding contact between the two, extending the life of the contact member and reducing the impact of the door against the hanger. It is possible to obtain reliable retention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall schematic structure of a door support device according to an embodiment of the present invention, FIG. 2 is a side view of the main parts, FIG. 3 is a front view of the door lift means,
The figure is a front view of the hanger, Figure 5 is a plan view of the abutting member of the hanger, Figure 6 is a front view of the clamping means of the hanger, Figure 7 is a rear view of the conveyance direction position detection means, and Figure 8 is the same. The side view and FIG. 9 are the same plan views. 1...Door support device, 2...Transfer conveyor, 3
...Adhesive application robot, 5...Hanger arm,
7... Contact member, 8... Clamp means, 22...
Falling direction positioning means, 29...Door lift means, 32...Elevating cylinder, 33...Support plate member, 34...Guide rod, 35...Guide tube member, 36...Receiving member, 37...Regulation mechanism, 39
...Position detecting means, 51...Control means, A...Hanger, B...Door, S...Adhesive application station.

Claims (1)

[Scope of utility model registration request] A device that is installed at a specific work station on a dedicated door outfitting line and positions and supports a door that is carried while being held by a hanger on the outfitting line, the hanger having an abutting member that receives one end of the door, and a door that is carried by a hanger. and a clamping means for clamping the other end of the door at the same time, and on the specific work station side, a hanger is pressed and tilted from the door outer side so that the door is tilted by a set angle, and the outer panel side of the door is supported. a falling direction positioning means for positioning and supporting the door above the hanger, a door lift means for lifting the door above the hanger, removing it, positioning and supporting it at a set height position, lowering the door after completion of the work and placing it on the hanger, and transporting the door. A position detecting means for detecting a position with respect to a direction, and a control means for correcting the operation of the working means based on the position detection of the position detecting means are disposed, and further, the door lift means is arranged such that the door lift means is moved from an abutting member provided on the hanger. A door support device used in a door-dedicated outfitting line, characterized in that it is equipped with a regulating mechanism that regulates the ascending path of the door in the direction of separation.