JP2001198741A - Assembly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate an assembly operation on a heavy workpiece. SOLUTION: A workpiece 6 is fixed between a right-left pair of support arms 5 provided on a workpiece fixing part 3. Those are lifted with a hoisting device 7, and a rotary shaft 4 on the workpiece fixing part 3 is rotatably supported on a rotary shaft support part 2 at the upper end of a pedestal 1 supported in advance on a floor. When the workpiece fixing part 3 is rotated on the rotary shaft 4, even a heavy workpiece 6 can be rotated with ease, so that a place of work such as parts mounting can be normally oriented to an easy-to-see position for a worker, who is allowed to work as seeing it direct.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling apparatus capable of rotatably supporting a heavy work and mounting various components on each side of the work from a predetermined direction.

[0002]

2. Description of the Related Art As an example, in a conventional motorcycle power unit assembling process, an engine is mounted on a workbench, and a rear wheel muffler, a main stand, a rear cushion,
An air cleaner and the like were sequentially installed.

[0003]

In this mounting operation, since the power unit is heavy and cannot be easily handled, when mounting various parts on each side of the power unit, the worker moves to the periphery of the power unit and the working posture. Must be carried out while changing variously, and it is necessary to move a heavy object, perform a number of waist bending operations, and groping operations relying on skill in places that are difficult to see, so that improvement in workability has been demanded. An object of the present invention is to solve such a problem.

[0004]

In order to solve the above-mentioned problems, an assembling apparatus according to the present invention includes a support base and a substantially fork-shaped work mounting portion rotatably supported on an upper end thereof. The work mounting portion includes a pair of left and right support arms and a rotation shaft protruding in a direction opposite to the support arm. In a state where the work is sandwiched and supported between the left and right support arms, the rotation shaft is connected to the upper end of the support base. It is rotatably supported by a rotating shaft supporting portion provided in the portion.

At this time, the rotating shaft support portion is vertically divided, a recess for accommodating the rotating shaft is provided between the divided portions, a bearing is provided around the rotating shaft, and the bearing is fitted. A mating groove may be formed in the recess. Further, the work may be a power unit for a motorcycle.

[0006]

The work is supported between a pair of left and right support arms provided on the work mounting portion, and the rotation shaft of the work mounting portion is rotatably and fixedly supported on the rotation shaft support portion of the support base. The work mounting portion can freely rotate and fix around the rotation axis with respect to the table. For this reason, even when various components are mounted on different side surfaces of the work, the work mounting portion is rotated so that the side surface of the work to be worked at that time is always directed to a position that is easy to see and work such as near or above. Can be fixed.

Therefore, it is possible to change the direction of the work side without changing the position of the worker. As a result, it is possible to reduce the number of changes in the working posture such as the waist bending work while keeping the working posture constant. In addition, the movement of the heavy power unit is reduced. In addition, since the work can be performed while always looking at the component mounting portion, the assembling work is facilitated, and the groping work relying on skill can be reduced, so that the overall workability is improved. In addition, the appearance of the assembly part can be reduced, so that operation errors can be reduced.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment applied to a power unit assembly of a wheeled vehicle will be described. FIG. 1 is a principle view for explaining the operation of an assembling jig in an assembling operation, FIG. 2 is a diagram showing a state of attachment of a power unit to a work attaching portion, FIG. FIG. 5 is a perspective view of the shaft supporting portion, and FIG.

This assembling jig includes a support base 1 standing upright on a floor and a substantially fork-shaped work mounting part 3 rotatably supported by a rotary shaft support part 2 provided on the support base. Have. The work mounting portion 3 has a rotating shaft 4 supported by the rotating shaft support portion 2 and a pair of left and right support arms 5. The rotating shaft 4 and the support arm 5 project or extend in opposite directions.

A small automatic 2 is provided between the left and right support arms 5.
The work 6, which is a power unit for a wheel, is supported, and the work mounting portion 3 and the work 6 are suspended by a suspending tool 7 and attached to and detached from the support base 1 in a state in which the work 6 is integrated (FIG. 1A).

The work mounting portion 3 is supported by the rotating shaft support portion 2 on a rotating shaft 4 and is rotatable around its axis about the rotating shaft 4. By rotating the work mounting portion 3, as shown in FIG. Can be changed freely, such as upward, or horizontal as shown in FIG. 1C. Note that the upward and the horizontal orientation are based on the usage mode in the product. FIG. 1 shows only the principle, and the actual structure of mounting the work 6 to the rotating shaft support 2, the rotating shaft 4, and the work mounting portion 3 is different from the illustrated state as described below. .

As shown in FIG. 2, the support arm 5 and the work 6 are connected to each other by a mounting portion 5 provided at an end of the support arm 5.
This is performed by piercing the connecting rod 8 so that “a” is aligned with the mounting portion 6 a provided on the work 6. A stay 5b provided at an end of the support arm 5 is provided with a stopper 9b.
Is fixed to the work 6. One end of the connecting rod 8 forms a bent portion 8 a, which is engaged with the side surface of the support arm 5 to prevent it from falling off.

The mounting portion 6a is also a vehicle mounting portion as a power unit. Further, the other end of the hanging member 7 is locked to another attachment portion 6b provided at the other rear end portion and the ring-shaped protrusion 3a of the work attachment portion 3. Ring-shaped protrusion 3
a is provided at one end of a cross member portion 3b extending in the left-right direction of the work mounting portion 3.

As is apparent from FIG. 3, the rotating shaft 4 has a plurality of stopper engaging holes 4a, 4a at its tip and bearings 10, 10 mounted around the intermediate portion.
On the other hand, the rotary shaft supporting portion 2 side is substantially cylindrical and is divided into two in the axial direction of the rotary shaft 4.
A semi-circular groove 12 for accommodating the rotating shaft 4 and a large-diameter groove 13 formed in a part thereof and having a semi-circular shape with a larger diameter than that for accommodating the bearing 10 are formed. Also, the half body 1
1 is provided with a stopper 9a, and the work mounting portion 3 can be fixed at a plurality of fixing positions by selectively engaging the distal end portion with one of the stopper engaging holes 4a.

Similarly, the other half 14 has a semicircular groove 15.
And the large-diameter groove 16 is formed. The half body 14 is connected to the half body 11 via a hinge 17 and can be opened and closed by a handle 18 provided on one side, and as shown in FIG. The closed state is fixed by a buckle 19 provided in the section.

The hanging member 7 includes a plurality of wires, one ends of which are locked by hooks or the like to the mounting portion 6a and the ring-shaped protrusion 3a. The upper end of each wire is a coil spring 20 as shown in FIG. 1A. To the lower end. The upper end of the coil spring 20 is locked by a support member 21 suspended from the ceiling side of the worktable. Note that the coil spring 20 can be made of another appropriate spring material such as an elastic member such as rubber.

Next, the operation of this embodiment will be described. Figure 1
As shown in FIG. 2, first, the work 6 is fixed to the work mounting portion 3, and the work 6 is suspended by the suspending tool 7,
Into the groove 12 of the half body 11 which has been opened in advance from above, and align the bearings 10 with the large diameter grooves 13. Subsequently, when the half body 14 is closed and the buckle 19 is hung, the rotating shaft 4 is supported by the rotating shaft support portion 2 so as not to come out and to be rotatable.

Therefore, as shown in FIGS. 1B and 1C, the work mounting portion 3 is freely rotated around the axis of the rotating shaft 4 after the hanging tool 7 is removed, and the components of the work 6 are mounted. Keep the surface facing the worker at all times. At this time, the rotating shaft 4
Since the bearings 10 and 10 are provided on the workpiece mounting portion 3, the work mounting portion 3 can be rotated with an extremely small force and can be squeezed by the stopper 9a at a position with good workability.

Therefore, as shown in FIG. 5, when the work 6 is turned sideways and the right side of the vehicle body is turned up, the rear wheel 23 is attached to the rear wheel axle 22 from above, and the exhaust pipe 25 is connected to the exhaust port of the engine 24. By attaching the tip, the muffler 26 is also attached from almost above so that the attachment portion is easy to see.

If the work 6 is rotated 90 ° counterclockwise to be horizontal, the crankcase 2 on the left side of the vehicle body can be obtained.
The kick arm 30 can be attached to the kick shaft 29 protruding from the side surface, and the air cleaner 31 can be attached to the crankcase 28. These attachments can be made in a direction that is easy to see and work. However, in this case, the attachment work may be performed from above by further rotating the vehicle by 90 ° and turning the left side of the vehicle body upward.

As described above, in any case, the worker can freely rotate the work 6 while standing almost at a constant position, and always or upwardly or most easily see the mounting surface of the component to be worked. Work can be fixed in a state that is easy to do. In addition, since the work mounting portion 3 rotates about the rotation shaft 4, the position of the rotation center is constant, and even if the work mounting portion 3 is rotated at any angle, each portion of the work 6 remains within the operable range. Therefore, the number of changes in the working posture such as the waist bending work can be reduced as much as possible, and the groping work can be eliminated to work in a position where the mounting portion is easily visible.

Further, even if the work 6 is a heavy object, if the work 6 is supported on the support table 1, the subsequent rotation can be performed with a very small force, so that a heavy work such as directly lifting the heavy object becomes unnecessary. In these respects, workability is significantly improved. In addition, the appearance of the assembling can be reduced, so that there is little work error and the assembling quality can be improved.

Further, by providing the suspension 20 with the spring 20, the positioning of the rotating shaft 4 when fixing it to the rotating shaft support 2 becomes easy. In addition, since the stopper 9 is formed of a bolt, attachment and detachment and replacement are facilitated. In addition, when the work 6 is a power unit of a motorcycle, although it is a relatively heavy object, it is necessary to mount various components on each side of the work. .

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the operation of an assembly jig in an assembly operation in principle;

FIG. 2 is a view for explaining the structure of a rotating shaft support portion.

FIG. 3 is a perspective view of a rotating shaft support in an assembled state.

FIG. 4 is a perspective view of the rotation shaft support shown at another angle.

FIG. 5 is a diagram illustrating an assembly operation.

[Description of Signs] 1: Support base, 2: Rotary shaft support, 3: Work mounting part,
4: rotating shaft, 6: work, 7: hanging tool

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[Procedure amendment]

[Submission date] February 2, 2000 (200.2.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art As an example, in a conventional motorcycle power unit assembling process, an engine is mounted on a workbench and a rear wheel , a muffler, a main stand, a rear cushion, an air cleaner and the like are sequentially mounted.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

In order to solve the above-mentioned problems, an assembling apparatus according to the present invention includes a support base and a substantially fork-shaped work mounting portion rotatably supported on an upper end thereof. The work mounting portion includes a pair of left and right support arms and a rotation shaft protruding in a direction opposite to the support arm. In a state where the work is sandwiched and supported between the left and right support arms, the rotation shaft is connected to the upper end of the support base. It is characterized in that it is rotatably and fixedly supported by a rotating shaft supporting portion provided in the portion.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

Therefore, as shown in FIGS. 1B and 1C, the work mounting portion 3 is freely rotated around the axis of the rotating shaft 4 after the hanging tool 7 is removed, and the components of the work 6 are mounted. Keep the surface facing the worker at all times. At this time, the rotating shaft 4
Since the bearings 10 and 10 are provided on the workpiece mounting portion 3, the workpiece mounting portion 3 can be rotated with an extremely small force, and can be fixed by the stopper 9a at a position with good workability.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0023

[Correction method] Change

[Correction contents]

Further, by providing the suspension 20 with the spring 20, the positioning of the rotating shaft 4 when fixing it to the rotating shaft support 2 becomes easy. Also, the stoppers 9a, 9
Since b is constituted by bolts, attachment / detachment / replacement becomes easy. In addition, when the work 6 is a power unit of a motorcycle, it is suitable for application of the present apparatus because various parts are required to be attached to each side surface of the power unit even though it is relatively heavy. .

[Procedure amendment 6]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

[Procedure amendment 7]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

Continuing from the front page (72) Inventor Toyoka Yoshioka 1500 Oira-machi, Otsu-cho, Kikuchi-gun, Kumamoto Prefecture Inside Kumamoto Works, Honda Motor Co., Ltd. Giken Industry Co., Ltd.Kumamoto Factory

Claims (3)

[Claims] 1. A work table, comprising: a support base; and a substantially fork-shaped work mounting portion rotatably supported at an upper end portion thereof. The work mounting portion includes a pair of left and right support arms and a direction opposite to the support arms. A rotating shaft that protrudes, and in a state where the work is sandwiched between the left and right support arms and supported, the rotating shaft is rotatably supported by a rotating shaft support provided at an upper end of the support base. Characteristic assembly equipment. 2. The rotating shaft support portion is divided into upper and lower portions, a concave portion for accommodating the rotating shaft is provided between the divided portions, a bearing is provided around the rotating shaft, and the bearing is fitted. The assembly device according to claim 1, wherein a groove is formed in the recess. 3. The assembly apparatus according to claim 1, wherein the work is a power unit for a motorcycle.