JP2018127036A - Transportation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to suppress an increase in a work area in transportation of a jig or the like and upgrade workability.SOLUTION: A transportation apparatus 1 includes a transportation rail 2 over which a trolley 20 is transported among plural standby positions and work positions. The transportation rail 2 includes a main rail 10 over which the trolley 20 is transported to the work positions, plural branch rails 11a to 11c over which the trolley 20 is transported to the respective standby positions, junctions 12 and 13 serving as couplers that couples the main rail 10 selectively with any of the branch rails 11a to 11c, and an intermediate rail 14.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport device for transporting a jig used in an assembly line of a factory, for example.

  When assembling a door hinge on a car body prior to mounting the door on the car body on the car assembly line, the door hinge is positioned at a desired position on the door using a door hinge assembling jig. (For example, refer to Patent Document 1).

  By the way, such a door hinge assembling jig is usually suspended on a conveyance rail arranged on the ceiling of the work place from the temporary placement position to the work position so as to be movable and carried from the assembly line. Used to hold the door from a predetermined position to a working position.

JP 2002-68037 A

  The conveyance of jigs such as the door hinge assembling jig according to the conventional technique has the following problems. That is, there are cases where doors of different vehicle types are mixed in the assembly line, and it is necessary to prepare different jigs depending on the vehicle types.

  However, the increase in the types of jigs requires that the work positions where the jigs are used should be increased correspondingly, which may cause an increase in work area and a decrease in workability.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a transport device that can suppress an increase in work area and improve workability in transporting jigs and the like.

  In order to achieve the above object, a first aspect of the present invention includes a transport rail that transports a transport body between a plurality of standby positions and work positions, and the transport rail moves the transport body to the work. A main rail that is transported to a position; a plurality of branch rails that transport the transport body to each of a plurality of standby positions; and a connecting portion that selectively connects the main rail and any of the plurality of branch rails. The transfer device.

  The present invention as described above has an effect that it is possible to improve the workability while suppressing an increase in the work area in conveying a jig or the like.

The top view which shows the structure of the conveying apparatus which concerns on embodiment of this invention The top view which shows the structure of the principal part of the conveying apparatus which concerns on embodiment of this invention The top view which shows the operation example of the conveying apparatus which concerns on embodiment of this invention The top view which shows the operation example of the conveying apparatus which concerns on embodiment of this invention The front view which shows the structure of the assembly line using the conveying apparatus which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing a configuration of a transport apparatus 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the transport device 1 according to the present embodiment is mainly composed of a transport rail 2 that is fixed on a ceiling of a work place by a bracket B and transports a trolley 20 to which a jig described later is mounted. Prepare as.

  The transport rail 2 is one main rail 10 whose one end extends to a work position (not shown) along the direction of the black arrow in the figure, and is in a standby position near the other end of the main rail 10 and temporarily placing a jig. A plurality of branch rails illustrated as three branch rails 11a to 11c in the drawing, branch portions 12 and 13 for selectively connecting the main rail 10 and any of the branch rails 11a to 11c, and An intermediate rail 14 is provided.

  The branch rail 11 a and the intermediate rail 14 are rails arranged along the extending direction of the main rail 10 so as to form a line with the main rail 10, and the intermediate rail 14 is interposed between the main rail 10 and the intermediate rail 14. Be placed. Each of the branch rails 11b and 11c is a linear rail that is inclined with respect to the extending direction of the main rail 10, and is arranged adjacent to a row formed by the main rail 10, the branch rail 11a, and the intermediate rail 14. The Note that one end of the branch rail 11b is disposed so as to be substantially parallel to one end of the branch rail 11a, and one end of the branch rail 11c is disposed so as to be substantially parallel to one end of the intermediate rail 14.

  The branching portion 12 is a mechanism that is disposed between the branch rail 11a and the intermediate rail 14, and selectively connects the intermediate rail 14 and one of the branch rails 11a and 11b. The branch portion 13 is a mechanism that is disposed between the intermediate rail 14 and the main rail 10 and selectively connects the main rail 10 to any one of the intermediate rail 14 and the branch rail 11c.

  The branch parts 12 and 13 have a common configuration. The details will be described with reference to the enlarged view of the main part of FIG. The branch portion 12 connects the straight rail 12a for connecting the intermediate rail 14 and the branch rail 11a, the curved rail 12b for connecting the intermediate rail 14 and the branch rail 11b, and the straight rail 12a and the curved rail 12b. Connecting arm 12c.

  The straight rail 12a is a rail that extends along a straight line LD formed by the extending direction of the branch rail 11a, the intermediate rail 14, and the main rail 10 (not shown). The straight rail 12a is a rail having a linear form that spans the space from the end E11a of the branch rail 11a to the end E14 of the intermediate rail 14 corresponding to the gap G between the branch rail 11a and the intermediate rail 14. . The curved rail 12b is a rail having a curved shape so as to span a space from the end E11b of the branch rail 11b to the end E14 of the intermediate rail 14.

  The intermediate rail 14, the branch rail 11a, the straight rail 12a, and the curved rail 12b are arranged as follows. That is, the end E11a of the branch rail 11a, the end E11b of the branch rail 11b, the end 12a1 of the straight rail 12a, and the end 12b1 of the curved rail 12b include one end of the gap G between the branch rail 11a and the intermediate rail 14. They are arranged along a straight line TD1 orthogonal to the straight line LD. On the other hand, the end E14 of the intermediate rail 14, the end 12a2 of the straight rail 12a, and the end 12b2 of the curved rail 12b are straight lines including the other end of the gap G between the branch rail 11a and the intermediate rail 14 and parallel to the straight line TD1. Arranged along TD2.

  Next, the straight rail 12a and the curved rail 12b are arranged in parallel with the straight line LD, and are connected by the connecting arm 12c, so that the branch rail 11a and the intermediate rail 14 are kept in an integrated state as the branch portion 12. The gap G is formed so as to be movable along white arrows in the drawing parallel to the straight lines TD1 and TD2. In addition, the movement of the branch part 12 in the transport rail 2 is performed by an actuator 30a using an air cylinder or the like as shown in FIG.

  The branch portion 12 as described above is arranged such that the end portion 12a1 of the straight rail 12a and the end portion E11a of the branch rail 11a, and the end portion 12a2 of the straight rail 12a and the end portion E14 of the intermediate rail 14 are opposed to each other. The straight rail 12a bridges the branch rail 11a and the intermediate rail 14. Further, by arranging the end portion 12b1 of the curved rail 12b and the end portion E11b of the branch rail 11b, and the end portion 12b2 of the curved rail 12b and the end portion E14 of the intermediate rail 14 to face each other, the curved rail 12b becomes the branch rail. 11b and the intermediate rail 14 are bridged.

  By providing such a configuration, the branching portion 12 can selectively connect the intermediate rail 14 and one of the branch rails 11a and 11b. The branch portion 13 has the same configuration as that of the branch portion 12, and the branch rail 11a is replaced with the intermediate rail 14, the branch rail 11b is replaced with the branch rail 11c, the intermediate rail 14 is replaced with the main rail 10, and the straight rail 12a. Is replaced with the straight rail 13a, the curved rail 12b is replaced with the curved rail 13b, the connecting arm 12c is replaced with the connecting arm 13c, and the actuator 30a is replaced with the actuator 30b. The operations of the actuators 30a and 30b are performed by inputting an operation signal from the outside, and the combination of the straight rail 12a and the curved rail 12b of the branching portion 12 and the straight rail 13a and the curved rail 13b of the branching portion 13 is determined in advance. It is preferable to determine the operation signal.

  In the above configuration, the transport device 1 corresponds to the transport device of the present invention, and the transport rail 2 corresponds to the transport rail of the present invention. The main rail 10 and the branch rails 11a to 11c correspond to the main rail and the plurality of branch rails of the present invention, respectively, and the combination of the branch portions 12 and 13 and the intermediate rail 14 corresponds to the connecting portion of the present invention. Corresponds to the carrier of the present invention.

  The operation of the conveying apparatus 1 according to the embodiment of the present invention having such a configuration will be described with reference to FIGS. 1, 3 and 4 together. As shown in FIG. 1, the branch part 12 connects the intermediate rail 14 and the branch rail 11a via the straight rail 12a, and the branch part 13 connects the intermediate rail 14 and the main rail 10 via the straight rail 13a. As a result, the main rail 10 and the branch rail 11a are connected, and the trolley 20 can move along the path from the main rail 10 to the branch rail 11a.

  Next, as shown in FIG. 3, the branch part 13 connects the main rail 10 and the branch rail 11c via the curved rail 13b, so that the trolley 20 moves along the path from the main rail 10 to the branch rail 11c. It becomes possible. In the drawing, the branching portion 12 is connected to the intermediate rail 14 and the branch rail 11a via the straight rail 12a, but the operation of the branching portion 12 may be arbitrary.

  Next, as shown in FIG. 4, the branch part 12 connects the intermediate rail 14 and the branch rail 11b via the curved rail 12b, and the branch part 13 connects the intermediate rail 14 and the main rail 10 via the straight rail 13a. By connecting the main rail 10 and the branch rail 11b, the trolley 20 can move along the path from the main rail 10 to the branch rail 11b.

  As described above, in the transport device 1 of the present embodiment, the trolley 20 is transported by selectively connecting the main rail 10 and the branch rails 11a to 11c with the branch portions 12 and 13 and the intermediate rail 14. be able to.

  Thereby, while the branch rails 11a to 11c are arranged according to the standby positions for temporarily placing different jigs, only the single main rail 10 can be arranged at the work position where the jigs are used. It is possible to suppress an increase in the work area.

  Hereinafter, further description will be given with reference to FIG. FIG. 5 is a front view showing a configuration of an automobile assembly line using the transport apparatus 1 of the present embodiment.

  As shown in FIG. 5, on the floor surface F of the work place, the main rail 10 that is a position adjacent to the container 60 that houses the back door 50 of the automobile as a workpiece and is the position where the transfer device 1 is disposed on the ceiling C. A work area OR is provided immediately below the end. Inside the container 60, the back door 50 is placed on a work table 61 and arranged in a column with the main surfaces facing each other, and the work table 61 is pulled out from the container 60 by the operator's operation. The back door 50 is mounted with a jig 40 that is detachably fixed to the trolley 20 (not shown) of the transport device 1 on the work area OR through the wire 41, so that the door hinge can be assembled and any other work can be performed. Is done.

  In such an assembly line, when a plurality of types of back doors 50 are included in the container 60, a plurality of types of jigs 40 fixed to the trolley 20 are required. Accordingly, only the main rail 10 of the transfer device 1 is disposed on the ceiling C to form a work area OR including a work position, and the plurality of types of jigs 40 are branch rails 11a each serving as a standby position for temporary placement. ˜11c can be stored and exchanged, and expansion of the occupation space of the work area OR can be suppressed.

  Furthermore, when the plurality of main rails 10 corresponding to the type of jig are provided on the ceiling C, the distance between each main rail and the work table 61 is different, and the suspension type as shown in FIG. In the case of using a jig, a difference in the hanging position of the jig is caused and workability is lowered.

  On the other hand, according to the present embodiment, by configuring the work area OR with the single main rail 10, even if a plurality of types of hanging jigs are used, The hanging position of the jig is the same in common with the jig, and the workability can be improved.

  Further, in the transport device 1 according to the present embodiment, the branch rails 11a and 11b sandwiching the branch portion 12 and the end portions of the intermediate rail 14 extend outward from each rail in parallel to the moving direction of the branch portion 12. The protective plate 15 to be extended, and the protective plate extending outward from each rail in parallel to the moving direction of the branch portion 13 from the respective ends of the intermediate rail 14 and the branch rail 11c and the main rail 10 sandwiching the branch portion 13 By providing 16 each, the following effects are produced. That is, when the branch unit 12 or 13 is operated in a state where the trolley 20 is positioned on any of the straight rails 12a and 13a and the curved rails 12b and 13b constituting the branch unit 12 or 13, the trolley 20 is positioned. Although both ends of the straight rail or the curved rail may be exposed and the trolley 20 may fall off the transport rail 2, the trolley 20 is provided with the protection plates 15 and 16 as illustrated in the straight rail 12a of FIG. Both ends of the straight rail or the curved rail on which the rail is positioned are blocked by the pair of protective plates 15 or the pair of protective plates 16 during the movement of the branching portion 12 or 13, and the trolley 20 can be prevented from falling off. Become. Therefore, the reliability of the apparatus can be improved.

  As described above, according to the transfer device 1 of the embodiment of the present invention, it is possible to suppress an increase in work area and improve workability in transferring a jig or the like.

  However, the present invention is not limited to the above embodiment. In the above description, the selective connection between the main rail 10 and the branch rails 11a to 11c in the transport rail 2 is performed by a combination of the branch portions 12 and 13 and the intermediate rail 14 that move in parallel with each other. The connecting portion of the present invention is not limited by the specific mode as long as it selectively connects the rail and any of the plurality of branch rails. Therefore, in addition to the above-described embodiment, a plurality of branch rails radiated in a tree shape from one main rail may be selectively connected by a rotation switching type.

  However, as in the present embodiment, the configuration including the branch portions 12 and 13 that are translated by actuators 30a and 30b such as air cylinders simplifies the structure of the device and improves the reliability. It can be carried out at a low cost and is more preferable.

  Further, in the above description, the transport rail 2 is disposed on the ceiling of the work place and is used for transporting the trolley 20 on which the jig is suspended. However, the transport rail of the present invention is the transport rail of the trolley 20. It is only necessary to be able to transport such a transport body, and it is not limited by the specific mode of the arrangement. Therefore, the present invention may be implemented in a transport body that supports and transports a jig from below while the transport rail is supported from the floor surface.

  Further, in the above description, the trolley 20 transported by the transport rail 2 is fixed to the jig and moved, but the work is fixed, mounted, placed, etc., and moved. It may be a thing.

  As described above, the present invention is a transport device, and includes a transport rail that transports the transport body between a plurality of standby positions and work positions, and the transport rail transports the transport body to the work position. A main rail to be moved, a plurality of branch rails for transporting the transport body to each of a plurality of standby positions, and a connecting portion for selectively connecting the main rail and any of the plurality of branch rails. What is necessary is just to restrict | limit, and it is not limited by the other specific objective, an application, and a structure.

  Therefore, the present invention may be implemented by adding various modifications to the above embodiment, including those described above, as long as they do not depart from the spirit of the present invention.

  The present invention as described above has an effect that it is possible to suppress an increase in work area and improve workability in conveying a jig or the like. For example, a production line for a vehicle such as an automobile or any other machine Useful in application.

DESCRIPTION OF SYMBOLS 1 Conveyance apparatus 2 Conveyance rail 10 Main rail 11a, 11b, 11c Branch rail 12, 13 Branch part 12a, 13a Straight rail 12b, 13b Curve rail 12c, 13c Connection arm 14 Intermediate rail 15, 16 Guard plate 20 Trolley 30a, 30b Actuator 40 Jig 41 Wire 50 Back door 60 Container 61 Work table

Claims (1)

Provided with a transport rail that transports the transport body between a plurality of standby positions and work positions,
The transport rail is
A main rail for transporting the transport body to the working position;
A plurality of branch rails for transporting the transport body to each of a plurality of standby positions;
A connecting portion that selectively connects the main rail and any of the plurality of branch rails;
Conveying device.

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