JP4099154B2 - Assembly jig and assembly system using the same - Google Patents

Description

The present invention relates to an assembling jig used for assembling a workpiece such as a vehicle engine and an assembling system using the assembling jig.

For example, as a conventional assembly system in which a vehicle engine is a work that is an assembly work target, as shown in FIG. 6, a front assembly process unit 4a, a middle assembly process unit 4b, a rear assembly process unit 4c, and each assembly process unit 4a, 4b, 4c, transfer devices 20 and 21 for moving the workpiece from the upstream assembly process section to the downstream assembly process section.
In each of the assembling process units 4a, 4b, and 4c, the work held by the assembling jig is transported by a conveyor, and the assembling work with respect to the work is performed along with this transporting.
Utility Model Registration No. 3091400

However, in the assembly system configured as described above, the position (part) of the workpiece held by the assembly jig is different in each of the three assembly process units, and accordingly, the assembly used in each assembly process unit The configuration of the jig was different. So, for example,
When an assembly jig is damaged in one assembly process section, the assembly jigs of other assembly process sections cannot be diverted, so a spare is prepared for each assembly jig used in each assembly process section. In addition, there is a problem that a large space is required to store such a large number of assembly jigs.

The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to use an assembly jig that can hold different parts of a work and can hold different parts of the work, and an assembling jig. Is to provide an assembly system.

In order to achieve the above-mentioned object , a moving receiving portion is provided on a table provided to be rotatable around an axis extending in a substantially vertical direction, with a set jig for holding the same workpiece at different holding positions depending on work processes. A plurality of bending arms provided with a plurality of stationary work receiving portions that do not move, and the bending arm includes a rotating portion having one end connected to a fixing portion fixed to the table via a hinge portion and a rotating portion. A movable workpiece receiving portion provided at the other end of the moving portion and capable of holding a workpiece to be assembled, and when the workpiece is held by the movable workpiece receiving portion, the fixed workpiece receiving portion is the movable workpiece receiving portion. When the fixed work receiving part holds the work, the bending arm falls over the hinge and is held by the fixed work receiving part. Wherein and is configured to be lower than the work that (claim 1).

Further, the moving work receiving part may be configured to hold the work so as to be rotatable (claim 2 ).

In order to achieve the above object, an assembling system according to the present invention transports the assembling jig according to any one of claims 1 and 2 by a transporting means (claim 3 ).

The assembling jig according to claim 1 is an assembling jig for holding the same work at different holding positions according to the work process, and the held work can have different postures, Different sites can be retained.

In addition, it is possible to change the posture of the workpiece more easily, and as a result, the effect of greatly improving the efficiency of assembling the workpiece can be obtained.

In the invention according to claim 3 , since the assembly jig described in claim 1 or 2 that exhibits the above effect is used, the configuration of the entire system becomes simple and compact, and its management becomes easy. Assembling work can be performed better.

Moreover, in the conventional assembly systems, as transfer device, but is required for moving the workpiece from the upstream side of the assembling step portion to the downstream side of the assembly process section, in the invention according to claim 3, transfer The loading device may be a device for changing the posture of the workpiece held by the assembly jig or only for lifting the workpiece from the assembly jig. Therefore, the configuration of the transfer device is simple, compact and even lower. Cost ones can be used.

  1 to 5 show an embodiment of the present invention.

As shown in FIG. 1, the assembly system 1 of the present invention has a work W (FIGS.
As shown in FIG. 5, an assembly process unit 4 is provided between a workpiece receiving unit 2 that receives the workpiece W and a workpiece delivery unit 3 that delivers the workpiece W to the next process. While being held by D, it is configured to be sent from the workpiece receiving unit 2 to the workpiece delivery unit 3 via the assembly process unit 4 by a conveying means (for example, a conveyor).

  The workpiece W is, for example, a vehicle engine.

In this embodiment, as the assembly process unit 4, a front assembly process unit 4a, a middle assembly process unit 4b, and a rear assembly process unit 4c are provided in this order from the upstream side.

Moreover, the 1st transfer apparatus 5 is provided between the front assembly process part 4a and the intermediate | middle assembly process part 4b, and it is the 2nd transfer between the middle assembly process part 4b and the back assembly process part 4c. A device 6 is provided.

As shown in FIG. 2A, the assembling jig D includes a pedestal panel 7, a table 8 provided on the pedestal panel 7 so as to be rotatable about an axis extending in a substantially vertical direction, A plurality (one pair in this embodiment) of moving work receiving portions 10 that are attached via the bending arm 9 and hold the workpiece W, and a plurality (five in this embodiment) attached to the table 8.
The fixed work receiving part 11 is provided.

The table 8 is configured such that the rotation about its axis is restricted every predetermined angle (for example, 90 °), and in the restricted state, the table 8 does not rotate unless the table 8 is intentionally moved.

The bending arm 9 includes a fixing portion 9a fixed to the table 8, and a hinge portion 9 to the fixing portion 9a.
The rotating part 9c with which the one end part was connected via b is provided, and the moving work receiving part 10 is provided in the other end part of the rotating part 9c. Then, when the rotating portion 9c in the upright state is rotated, the rotating portion 9c passes from the state shown in FIG. 2A to the state shown in FIG. 2B, as shown in FIG. 2C. Is in a folded state.

When the rotating part 9c of the bending arm 9 is in the standing state shown in FIG. 2A, the moving work receiving part 10 moves to a holding position where the work W can be held, and the rotating part 9c is shown in FIG. In the folded state shown in (2), it moves from the holding position to the exit position.

The pair of moving work receiving portions 10 moved to the holding position holds the work W so as to be rotatable about a substantially horizontal axis, and is provided with a lever provided on either one of the pair of moving work receiving portions 10. By operating 10a, the angle at which the workpiece W is held can be freely determined.

As shown in FIG. 2 (A), the assembling jig D configured as described above moves in the first state in which the movable work receiving portion 10 has moved to the holding position, and as shown in FIG. 2 (C). Work receiving part 1
The movable workpiece receiving portion 11 is switched to the second state in which 0 is moved to the withdrawal position, and the fixed workpiece receiving portion 11 avoids the workpiece W held by the moving workpiece receiving portion 10 in the holding position and is in the withdrawal position. 10 and the bending arm 9 are configured to avoid the workpiece W held by the fixed workpiece receiving portion 11.

  Next, the operation of the assembly system 1 having the above configuration will be described.

First, the work W sent from the previous process to the assembly system 1 is in the first state as shown in FIGS. 3A, 3B, and 3C in the work receiving unit 2 (see FIG. 1). Is held by the moving work receiving part 10 of the assembling jig D, and passes through the pre-assembling process part 4a by the conveying means in that state. At this time, a predetermined assembling operation for the workpiece W is performed in the previous assembling process unit 4a.

The workpiece W that has passed through the pre-assembly process unit 4a as described above is once lifted from the assembly jig D by the first transfer device 5, and the posture thereof is changed (for example, approximately 90 around the vertical axis). (In a state where the angle is changed), it is held again by the moving work receiving portion 10 of the assembly jig D in the first state (see FIGS. 4A, 4B, and 4C), and the intermediate assembly process by the conveying means It passes through part 4b.

It should be noted that the moving workpiece receiving portion of the assembly jig D in the first state, whether the workpiece W held by the assembly jig D passes through the previous assembly process section 4a or the intermediate assembly process section 4b. The fixed work receiving part 11 is more than the work W held by 10.
Since it is configured to be lower, there is no inconvenience caused by contact between the two.

And when passing the middle assembly process part 4b by a conveyance means, the middle assembly process part 4
In b, a predetermined assembling operation is performed on the workpiece W, and the workpiece W that has passed through the middle assembling process unit 4b is lifted again from the assembling jig D by the second transfer device 6, and the assembling jig D is moved from the first state. After being changed to the second state, the second workpiece is held by the fixed work receiving portion 11 of the assembly jig D in the second state (see FIGS. 5A, 5B, and 5C). Then, it passes through the post-assembly process section 4c by the conveying means.

When the work W held by the assembling jig D passes through the post-assembly process portion 4c, the work W is in the retracted position than the work W held by the fixed work receiving portion 11 of the assembling jig D in the second state. Since the movable work receiving portion 10 and the bending arm 9 are configured to be lower, there is no inconvenience due to contact between both.

And when passing the post-assembly process part 4c by a conveyance means, the post-assembly process part 4
A predetermined assembling operation is performed on the workpiece W in c, and the workpiece W that has passed through the post-assembly step 4c is transferred from the workpiece transfer unit 3 (see FIG. 1) to the next step.

Thereafter, the assembling jig D in which the workpiece W is not held in the workpiece transfer section 3 is sent again to the workpiece receiving section 2, and the same operation as described above is repeated.

The assembling jig D having the above-described configuration performs different assembling operations on the workpiece W 3
Since the two assembling process parts 4a, 4b, and 4c can be used in common, the number of spare assembling jigs that need to be prepared can be reduced, and the space for storing them can be reduced.

Further, the assembly jig D having the above-described configuration is in a compact state when the bending arm 9 is folded, so that the accommodation space can be reduced, and its transportation and the like can be easily performed.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications.

Further, instead of the configuration in which the moving workpiece receiving portion 10 and the fixed workpiece receiving portion 11 are provided as the workpiece receiving portion, a configuration in which only the moving workpiece receiving portion 10 is provided may be adopted.

It is explanatory drawing which shows roughly the structure of the assembly | attachment system which concerns on one Example of this invention. (A), (B), (C) is a perspective view which shows roughly the structure of the assembly jig | tool in the said Example. (A), (B), and (C) are a perspective view, a front view, and a side view schematically showing the configuration of the assembling jig and the workpiece when passing through the previous assembling process section. (A), (B), and (C) are a perspective view, a front view, and a side view schematically showing the construction of the assembling jig and the workpiece when passing through the middle assembling process section. (A), (B), and (C) are a perspective view, a front view, and a side view schematically showing the configuration of the assembly jig and the workpiece when passing through the post-assembly process section. It is explanatory drawing which shows the structure of the conventional assembly | attachment system roughly.

Explanation of symbols

10 moving work receiving part W work

Claims (3)

A set of jigs for holding the same workpiece at different holding positions depending on the work process, and a plurality of bending arms provided with a movement receiving portion on a table provided rotatably around an axis extending in a substantially vertical direction; A plurality of fixed work receiving portions that do not move, and the bending arm is provided at a rotating portion in which one end portion is connected to a fixing portion fixed to the table via a hinge portion and at the other end portion of the rotating portion. And a movable work receiving part capable of holding the work to be assembled, and when the work is held by the moving work receiving part, the fixed work receiving part is more than the work held by the moving work receiving part. When the workpiece is held by the fixed workpiece receiving portion, the bending arm falls over the hinge and becomes lower than the workpiece held by the fixed workpiece receiving portion. Jig assembly, characterized in that it is configured to. The assembling jig according to claim 1 , wherein the movable work receiving portion is configured to hold the work in a rotatable manner. Conveyance to that assembling system by conveying means of a jig assembly according to claim 1 or 2.

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