JP4285892B2 - Work receiving jig for assembly - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece receiving jig used when assembling a powertrain module of a motorcycle, for example.
[0002]
[Prior art]
Conventionally, in the assembly process of a motorcycle, the present applicant as an auxiliary jig for assembling a module having a powertrain function by assembling components such as a rear wheel, an air cleaner, a rear cushion, a main stand, and a muffler in an engine assembly, A technique has been proposed in which the engine is clamped and held by a receiving jig, and the parts are assembled in an easy-to-assemble posture while changing the posture of the engine with the receiving jig. (Filed on January 13, 2000, Japanese Patent Application No. 2000-5096)
[0003]
[Problems to be solved by the invention]
However, if the engine is clamped and held as in the above technology, if the engine configuration differs depending on the model, it cannot be held with a single receiving jig. Since a tool must be provided, there is a problem that the equipment cost is high and the handling procedure is complicated.
[0004]
Therefore, an object of the present invention is to enable assembly and support with a single jig regardless of the model.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is provided along an assembly line as an assembly work receiving jig for sequentially attaching parts such as a muffler, a main stand, a rear cushion, and an air cleaner to a work to which a rear wheel and an engine are coupled. A jig base provided on a movable conveyor, a jig main body provided with a tire clamp mechanism that can stand horizontally with respect to the jig base and clamps the rear wheel, and a clamped workpiece. A workpiece support mechanism that can change the posture of the workpiece while supporting the part is provided.
[0006]
If the tire clamp mechanism clamps both sides of the tire on the rear wheel, even if the model is different, the rear wheel only has a different tire width. Yes, versatility increases.
A part of the work clamped by the work support mechanism is supported, and the posture of the work can be changed by, for example, enabling the work support mechanism to move up and down.
At this time, since the tire clamping mechanism clamps a rotatable tire among the workpieces, it is possible to change the posture of the workpiece while the tire is clamped.
[0007]
In addition, since the workpiece receiving jig is provided on a conveyor that can run along the assembly line, the workpiece posture is converted into an optimum posture for each assembly station of parts arranged along the conveyor, for example. If work is done, assembly work is easy.
[0008]
According to a second aspect of the present invention, the jig base is provided with a plurality of index holes, and the jig body is provided with a lock pin that locks the rotation position by being inserted into the index hole when horizontally rotated to a predetermined position. .
[0009]
After the jig body is horizontally rotated to a desired position as described above, the work can be fixed in an easy-to-work direction by inserting the lock pin into the index hole and fixing it. .
[0010]
According to a third aspect of the present invention, the work support mechanism is composed of a vertically oriented cylinder damper filled with oil, and a hand stop valve is provided in the middle of the hydraulic oil pipe connecting the upper end and the lower end of the cylinder damper. The rod that supports the workpiece can be fixed at any height by operating the stop valve.
[0011]
By fixing the height of the rod supporting the workpiece at an arbitrary position in this way, the posture can be raised at an arbitrary angle on the workpiece. For example, when assembling a lower part such as a main stand, the posture is raised. Etc., and can be assembled in a posture that facilitates work.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is a schematic configuration diagram of an assembly work receiving jig according to the present invention, FIG. 2 is an explanatory view of a horizontal rotation lock mechanism of the jig body, and FIG. 3 is an explanatory view of a tire clamp mechanism of the jig body. 4 is an explanatory diagram of the workpiece support mechanism, FIG. 5 is an explanatory diagram of the conveyor line, and FIG. 6 is an explanatory diagram of a state in which the height of the rod of the workpiece support mechanism is extended.
[0013]
The work receiving jig for assembly according to the present invention is configured as an auxiliary jig for assembling a powertrain module of a motorcycle, and can be applied regardless of the type of motorcycle.
[0014]
That is, as shown in FIG. 1, the jig 1 includes a jig base 3 mounted on a conveyor 2, a jig body 4 mounted on the jig base 3 so as to be horizontally rotatable, and the jig body. The jig body 4 is provided with a horizontal rotation locking mechanism 6 and a tire clamping mechanism 7.
[0015]
As shown in FIG. 5, the conveyor 2 travels on an endless track by a drive motor 8, a drive sprocket 9, a driven sprocket 10, and a conveyor chain 11. A cam floor 13 as shown in FIG. The travel path of the conveyor 2 is provided along the assembly line.
[0016]
The jig base 3 is fixed on the conveyor 2 and includes a plurality of index holes h along the circumference as shown in FIG.
[0017]
As shown in FIG. 2, the horizontal rotation lock mechanism 6 of the jig body 4 has a base fixed to the jig base 3 with bolts B, and an upper part of the jig main body 4 pivoted so as to be horizontally rotatable via a bearing or the like. A cylindrical column 15 to be supported and a handle frame 17 pivotably supported around the fulcrum 16 with respect to the column 15 are provided. One end of the handle frame 17 can be inserted into the index hole h. A lock pin 18 is provided, and a return spring 20 that urges the lock pin 18 downward is disposed on the other end side.
Therefore, after lifting the handle frame 17 on the lock pin 18 side and pulling out the lock pin 18 from the index hole h, the horizontal rotation lock mechanism 6 is horizontally rotated by a desired angle, and the restoring force of the return spring 20 causes a new force. By inserting the lock pin 18 into the index hole h, it can be fixed at the rotational position.
[0018]
As shown in FIG. 3, the tire clamp mechanism 7 of the jig body 4 is fixed to the upper part of the column 15 of the horizontal rotation lock mechanism 6, and can be moved forward and backward by a screw 21 tightening operation. And a pair of clamp plates 23 are fixed to the front thereof. A cushioning material 24 such as urethane rubber is attached to the front surfaces of the clamp plates 22 and 23 so that both surfaces of the rear tire T can be clamped.
[0019]
As shown in FIG. 4, the work support mechanism 5 includes a cylinder type damper 25 filled with oil and a guide shaft 26 that slidably extends a guide member, and is slidable on the cylinder type damper 25. The tip of the cylinder rod 27 and the tip of the guide shaft 26 are coupled to a work receiving member 28, and a cushioning material 29 such as urethane rubber is attached to the upper surface of the work receiving member 28.
[0020]
Further, a hydraulic oil pipe 31 is connected between the upper end and the lower end of the cylinder type damper 25, and a stop valve 32 that opens and closes the pipe line and an oil circulation speed are adjusted in the middle of the hydraulic oil pipe 31. A controller 33 is provided.
[0021]
And while supporting a part of workpiece | work by the buffer material 29 of the said workpiece | work receiving member 28, when raising the cylinder rod 27, the stop valve 32 is opened, for example in the state which lifted a part of workpiece | work, When the workpiece receiving member 28 is pushed up by hand, the stop valve 32 is closed at the rising end where the cushioning material 29 abuts the lower surface of the workpiece W, and when the cylinder rod 27 is lowered, the stop valve 32 is opened and the weight of the workpiece is increased. The cylinder rod 27 is lowered, and the speed is adjusted by the controller 33 at this time.
At this time, the raised position of the cylinder rod 27 can be set to an arbitrary position by operating the stop valve 32.
The work support mechanism 5 as described above is integrated with the jig body 4.
[0022]
In the workpiece receiving jig 1 as described above, when the workpiece W in which the engine E and the rear wheel are coupled is loaded on the upstream side of the conveyor 2, the workpiece receiving jig 1 supports the workpiece W.
That is, as shown in FIG. 1, the rear wheel tire T is clamped by the tire clamp mechanism 7, and a part of the engine E is supported by the work receiving member 28 (buffer material 29) of the work support mechanism 5.
[0023]
Then, parts such as a muffler, a rear cushion, an air cleaner, and a main stand are assembled to the work W. The work W is converted into an easy-to-work posture according to the attachment position of each part. For example, when assembling a lower part such as a main stand, as shown in FIG. 6, for example, if the cylinder rod 27 of the cylinder type damper 25 is raised, the posture of the workpiece W is converted to a standing posture, and the work is easy. .
[0024]
Further, not only the posture change by the cylinder type damper 25 but also the orientation of the workpiece W can be changed by horizontally rotating the jig body 4, so that the assembly work is further facilitated.
And when performing the above assembly work, the tires on the rear wheels are clamped even if the form of the engine differs depending on the model, so it can be applied to all models, simplifying equipment and The handling procedure can be simplified.
[0025]
The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.
[0026]
【The invention's effect】
As described above, the work receiving jig according to the present invention is an assembly work receiving jig for sequentially attaching parts such as a muffler, a main stand, a rear cushion, and an air cleaner to a work in which a rear wheel and an engine are coupled. Since the posture of the workpiece can be changed by clamping the rear wheel, all types of workpieces can be clamped, increasing versatility.
Further, if a mechanism for locking the horizontal rotation position of the jig body is provided as in claim 2, it is possible to work by changing the direction of the work. It is more preferable that the supporting rod can be fixed at an arbitrary height.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a structure of a workpiece receiving jig for assembly according to the present invention. FIG. 2 is an explanatory diagram of a horizontal rotation lock mechanism of a jig body. FIG. 3 is an explanatory diagram of a tire clamp mechanism of the jig body. [Explanation of work support mechanism] [FIG. 5] Explanatory view of conveyor line [FIG. 6] Explanatory view of the work support mechanism with the rod extended [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Work receiving jig, 2 ... Conveyor, 3 ... Jig base, 4 ... Jig body, 5 ... Work support mechanism, 7 ... Tire clamp mechanism, 18 ... Lock pin, 25 ... Cylinder type damper, 27 ... Cylinder rod 31 ... Hydraulic oil piping, 32 ... Stop valve, h ... Index hole, T ... Tire.

Claims (2)

An assembly work receiving jig for sequentially attaching parts such as a muffler, main stand, rear cushion, and air cleaner to a work to which the rear wheel and the engine are coupled, and is provided on a conveyor that can run along the assembly line. A jig base, a jig main body provided with a tire clamp mechanism that is vertically installed with respect to the jig base and clamps the rear wheel while allowing the engine to rotate with respect to the rear wheel, and after being clamped A work support mechanism fixed to the side of the jig body to support a part of the engine that is rotatable with respect to the wheel and to change the posture of the engine, and the work support mechanism encloses oil This is a vertically oriented cylinder type damper. A hand stop valve is provided in the middle of the hydraulic oil pipe connecting the upper and lower ends of this cylinder type damper. The operation of the valve, assembling work receiving jig, characterized in that to be able secure the rod to support the work at any height.  The assembly work receiving jig according to claim 1, wherein the jig base is provided with a plurality of index holes, and the jig body is inserted into the index holes when horizontally rotated to a predetermined position. A workpiece receiving jig for assembly, wherein a lock pin for locking the rotational position is provided.

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