KR100199357B1 - Parts assembly line and assembling method - Google Patents

Abstract

[purpose]

It is not necessary to temporarily accommodate the parts accommodated in the part height on the part shelf installed along the conveyor, and there is no need to provide such a part shelf, thereby saving space.

[Configuration]

An assembly line for assembling parts sequentially onto a base material while the base material is being moved by a conveyance line, characterized in that the conveyance path is divided into a plurality of partial conveyance paths, And a part transporting route transfer means for taking in the part to be assembled in the rear transporting route and carrying the part to be assembled in the back transporting route is provided.

Description

Parts assembly line and assembling method

FIG. 1 is a plan view schematically showing Embodiment 1 of the present invention. FIG.

FIG. 2 is a plan view schematically showing Embodiment 2 of the present invention. FIG.

FIG. 3 is a plan view schematically showing Embodiment 3 of the present invention. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10a to 10f: first to sixth partial conveyors

40a to 40c: first to third part conveyors

70a to 70c: first to third conveying train rows (conveying vehicle train)

V: Automatic transport vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an assembly line and an assembly method for assembling parts to a base material.

Conventionally, an assembly line (assembly method) for assembling parts to a base material includes the following.

It has a single straight conveyor (conveying path), in which a plurality of workers are arranged along the conveyor, and a part shelf is arranged at the back of the operator.

Then, for example, the circular mold (base material) of the engine flows on the conveyor, and each worker sequentially assembles predetermined parts taken out of the parts shelf with respect to the circular form of the engine.

As described above, a plurality of operators assemble the respective parts in charge, and finally all the parts are assembled.

However, the above-described assembly line (assembly method) has the following drawbacks.

Usually, the length of the conveyor is set so as to correspond to the maximum production amount. Further, in a period in which the production yield decreases, the moving speed of the conveyor is made slower and the number of parts assembled by one operator is increased to cope with this. By doing so, it is possible to reduce the number of necessary operators in accordance with the decrease in the production quantity. In this case, the assembly is completed without using the entire length of the conveyor. In other words, a portion of the conveyor becomes unnecessary, and if the maintenance or change of the production model provided for the next use is scheduled, it is possible to carry out a line correction operation corresponding to the maintenance. However, You can not get maintenance or modify lines.

Further, for example, from the original shape of the engine to the completion of the engine, it is necessary to assemble a large number of parts to the original shape of the engine, and it is impossible to move all such parts together with the original shape of the engine to the conveyor. Therefore, each worker needs to take out his or her assembling parts from the parts shelf behind the back, and it takes time to take out the parts.

In addition, since the above-described assembly line is composed of one conveyor, in principle, a plurality of kinds of products can not be assembled.

That is, if each product is somewhat different, it is possible to mix and produce a plurality of kinds in the same line. However, when the structure of the product is completely different and the order of assembly is different, mixing production by the same line is impossible.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a technique capable of solving the drawbacks of the conventional assembly line (assembly method).

In order to solve the above problems, an invention according to a first aspect of the present invention (claim 1) is an assembly line for assembling parts sequentially onto a base material while moving the base material by a transfer path, A part that is partly assembled at the former conveying path and a part for receiving the part to be assembled at the latter conveying path and conveying it to the post-conveying path are provided between the former conveying path and the latter conveying path, And a conveying path (conveying path) conveying means is provided.

Here, the terms "front conveying path" and "rear conveying path" refer to a partial conveying path located forward and backward in the partial conveying path that are mutually opposite in the conveying direction of the base material.

The invention according to the first aspect of the present invention (claim 2) is characterized in that, in the invention according to the first aspect of the present invention, the plurality of partial conveyance routes are arranged in parallel, And the leading end of the trailing end portion and the leading end of the succeeding conveying path are provided in a close positional relationship.

Here, "the plurality of partial conveying paths are in parallel, and the end portions of the front conveying path and the starting end portions of the rear conveying path are close to each other" means that each of the partial conveying paths is a straight line , And in the case of one reciprocating unit, the conveying direction is set to be opposite to each other, and in the case of one reciprocating or two reciprocating, it means that they are provided in the same direction with each other.

According to a third aspect of the present invention, there is provided an assembling method for sequentially assembling parts on a base material while moving a base material, comprising the steps of: (a) (B) a step of assembling the supplied parts to the base material; and (c) a step of assembling the base material to which the parts are assembled in the former transport path (B) and (c) are carried out at least once, with a step of receiving the components to be assembled in the back conveying route and supplying the components to the back conveying route.

In the invention according to the first aspect of the present invention described above, since the conveying path is divided into a plurality of partial conveying paths, when the number of the base materials to be assembled is reduced, only a part of the plurality of partial conveying paths And at that time, the other part conveyance route can be used for the interconnection or other kinds of assembling operations.

Between the front conveying path and the rear conveying path, there are provided a base material partly assembled at the front conveying path and a part conveying path (conveying path) conveying means for conveying the components to be assembled at the back conveying path and conveying them to the post- Therefore, the operator does not have to independently procure the parts for assembly, and can concentrate on only the assembly work, thereby improving the work efficiency. This is because, since the conveying path is divided into a plurality of partial conveying paths, the number of parts to be assembled per each conveying path becomes small as a part of all the parts assembled in the entire conveying path.

Further, in the invention according to the second aspect of the present invention, in addition to the above-described operation, the plurality of partial conveyance routes are provided in parallel, thereby saving space. Further, since the end portion of the front conveying route and the leading end portion of the rear conveying route are provided close to each other at this time, the conveyance between the respective partial conveying routes can be performed efficiently.

In the method according to the third aspect of the present invention, the same effects can be obtained by the invention according to the first aspect of the present invention.

[Example 1]

Next, Embodiment 1 of the present invention will be described with reference to FIG.

In this embodiment, six partial containers (partial conveying paths) 10a to 10f (also simply indicated as 10) are provided in the first to sixth stages. [0035] Each of the partial conveyors 10a- (Forward portion 12) and a double-acting portion (return portion 14) are paired with each other. The king portion 12 and the double-acting portion 14 A connecting portion 16 is formed between the connecting portion 16 and the connecting portion 16. Both the connecting portion 16 and the connecting portion 16 are formed by a roller conveyor.

A pallet (not shown) resting on the leading end (the lower end in the figure) of the core portion 12 is moved toward the connecting portion 16 (upward in the figure) and is moved from the connecting portion 16 to the king portion 12 And is moved to the end portion (the lower end portion in the figure) of the core portion 14.

The operator (Wa) is disposed in the king portion (12) and the rotating portion (14), respectively. In the figure, four people are arranged.

Corresponding to all the part conveyors 10a to 10f, the part height 20 is arranged. In the component housing 20, components to be assembled with respect to the original shape of the engine are housed.

An automatic conveyance vehicle traveling section 22 is provided between the partial containers 10a to 10f and the part height 20 and the first conveyance route R1, the second conveyance route R2, A sixth conveyance route R6 is formed. And the automatic transporting vehicle V runs along each of the transport routes R1 to R6.

The first conveying route R1 is guided from the engine round supply portion not shown in the lower right of the figure through the part height 20 (exactly the same as the following) and the start portion of the first partial conveyor 10, And is a route for returning to the engine circular feed section.

The second conveying route R2 is a conveying route for conveying the end portion of the first partial conveyor 10a from the end portion of the first partial conveyor 10a via the part height 20 to the end portion of the second partial conveyor 10b, It is the route that returns to the department. Similarly to the third to sixth conveyance routes R3 to R6, the end portions of the n-th conveyor 10, the component posts 20, and the leading ends of the (n + 1) th conveyor 10 (N = 3 to 5).

In each of the first to sixth transport routes (R1 to R6), the worker Wb is disposed one by one at the part of the part height 20.

Three automatic conveyance vehicles V are arranged in each of the second to sixth conveyance routes R2 to R6.

The seventh conveying route R7 connects a test place of the engine (not shown) on the upper left of the drawing to the end of the sixth part conveyor 10.

Next, the operation of this embodiment will be described.

The pallet and the circular body (base material) of the engine placed on the pallet are transported to the part height 20 (the right end portion in the drawing) along the first transport route R1.

The worker Wb puts on the pallet a part to be assembled in the first partial conveyor 10a (hereinafter referred to as a first part conveyor part). Then, the automatic transporting vehicle V travels to the starting end of the first partial conveyor 10a.

At the start end portion of the first partial conveyor 10a, the worker Wa transfers the pallet on which the circular portion of the engine and the first part conveyor part are placed to the first partial conveyor 10a.

Then, while the pallet is being moved in accordance with the movement of the first partial conveyor 10a, the first part conveyor parts can be sequentially assembled to the circular form of the engine by each worker Wa. The circular shape of the engine after the first part conveyor part is attached is determined by the operator Wa at the end portion of the first partial conveyor 10a by the operator Wa, .

The automatic transporting vehicle (V) runs along the second transport route (2) to the part height (20). Thereupon, the worker Wb places the second part conveyor part on the pallet. Then, the automatic transporting vehicle V travels to the starting end of the second partial conveyor 10b. Then, the round shape of the engine in which the first part conveyor part is assembled and the second part conveyor part are transferred to the second part conveyor 10b per pallet.

In the second partial conveyor 10b, while the pallet is being transferred by the second partial conveyor 10b, the worker Wa sequentially performs the assembly of the second partial conveyor parts, and thereafter, (V) of the automatic transmission R3.

As described above, from the end portions of the n-th partial conveyor 10 (n = 1 to 5), the circular form of the engine (the first to nth part conveyor parts are assembled) V to the part height 20. (N + 1) th parts conveyor part is supplied to the pallet, and is conveyed to the leading end part of the (n + 1) th part conveyor 10. (N + 1) -th partial conveyor 10 is moved to the (n + 1) -th partial conveyor 10 for each pallet, The (n + 1) th part conveyor parts are sequentially assembled while being moved by the first conveyor.

In this manner, until the end portion of the sixth partial conveyor 10f, all parts are assembled with respect to the original shape of the engine, and the engine is completed.

Then, the completed engine is transported to the test site of the engine by the automatic transporting vehicle V of the seventh transport route R7 for each pallet. Then, the automatic conveying car V then conveys the empty pallet to the end portion of the sixth partial conveyor 10f.

Then, all of the above operations are performed in parallel at the same time.

As described above, in this embodiment, the prototype of the engine and the parts to be assembled together with the worker Wa performing the assembly work are carried together. As a result, the worker Wa does not need to perform the work of procuring the part itself, and the work efficiency is improved. This is because the conveyor (conveying path) is divided into the first to sixth partial conveyors 10a to 10f (partial conveying path), so that if the parts are assembled in the respective part conveyors 10a to 10f, So that it can be carried.

In this embodiment, since the conveyor (conveying path) is divided into the first to sixth partial conveyors 10a to 10f (partial conveying path), there is also the following effect.

That is, when the amount of production of the engine is reduced, only the first to third partial conveyors 10a to 10f are used without using all of the first to sixth partial conveyors 10a to 10f. At that time, the number of parts per engine to be conveyed by each automatic transporting vehicle V in the first to third transporting routes is increased, and the moving speed of each of the partial conveyors 10a to 10c is decreased, , More parts are assembled than the above.

At that time, since the fourth to sixth partial conveyors 10d to 10f are not used at all for assembling the engine, it is possible to perform maintenance or use for other kinds of assembling work. That is, the base material and parts of other types of engines at the starting end of the fourth part conveyor 10d are supplied so that the automatic transporting vehicle V between the fourth and fifth part conveyors 10d and 10e is supplied to the fourth part conveyor 10d, At the end of the fifth partial conveyor 10d, the pre-assembled base material is taken in the fourth partial conveyor 10d, the other part of the engine is taken in from the part height 20 and supplied to the front end of the fifth partial conveyor, And the sixth part conveyors 10e and 10f, so that different kinds of engines can be assembled.

In this embodiment, since the first to sixth partial conveyors 10a to 10f are arranged in parallel, it is possible to shorten the length in the left and right direction as a whole and to operate in a limited space It becomes.

Since the first to sixth partial conveyors 10a to 10f are provided in the positional relationship in which the start end portion and the end end portion are located in close proximity to each other, the end portion of the nth conveyor 10, the component height 20, n + 1) partial conveyor 10 by the automatic transporting carriage V becomes efficient.

Since each of the part conveyors 10a to 10f and the part height 20 are connected to each other by the automatic transporting carriage V, There is no need to accommodate such parts, and there is no need to provide such parts shelves, which is advantageous in that space is saved.

[Example 2]

Next, a second embodiment of the present invention will be described based on FIG. 2 focusing on a difference from the first embodiment.

In this embodiment, they have first to fourth partial containers 40a to 40d, which are arranged in series.

Then, along the first conveying route 11, the automatic conveying vehicle V conveys the original (base material) of the engine placed on the pallet to the part height 20 (the right end portion in the drawing). The worker Wb places the first part conveyor part on the pallet. Then, the automatic transporting vehicle V travels to the beginning of the first partial conveyor 40a.

At the start end of the first partial conveyor 40a, the worker Wb moves the pallet on which the circular part of the engine and the first part conveyor part are placed to the first partial conveyor 40a.

Then, while the pallet is being moved along with the movement of the first partial conveyor 40a, the first part conveyor parts are sequentially attached to the circular form of the engine by each worker Wa. The circular shape of the engine after the first part conveyor part is attached is formed by the worker Wa at the end of the first partial conveyor 40a so that the worker Wa transfers the automatic conveying vehicle V of the second conveying route 12 per pallet, .

The automatic transporting vehicle V of the second transport route R12 travels along the second transport route R12 to the component storage 20. [ Thereupon, the second part conveyor part is placed on the pallet by the worker Wb. Then, the automatic transporting vehicle V travels to the starting end of the second partial conveyor 40b. Then, the circular shape of the engine and the parts for the second part conveyor, in which the parts for the first part conveyor are assembled, are moved to the second part conveyor 40b for each pallet.

In the second partial conveyor 40b, while the pallet is being moved by the second partial conveyor 40b, the worker Wa sequentially performs the assembly of the second part conveyor parts, To the automatic transporting vehicle V of the transport route R13.

As described above, until the end of the fourth partial conveyor 40d is reached, all the parts are assembled with respect to the original shape of the engine, and the engine is completed.

Then, the completed engine is transported to the test site of the engine by the automatic transporting vehicle V of the fifth transport route R15 for each pallet. Then, the automatic conveying car V then conveys the empty pallet to the end portion of the third partial conveyor 40c.

In this embodiment, since the partial conveyors 40a to 40d are installed in series, they are elongated as a whole, so it is preferable to install them in a slender space.

[Example 3]

Next, the third embodiment of the present invention will be described based on FIG. 3 focusing on the differences from the first and second embodiments.

In this embodiment, each of the first to third partial conveying paths is composed of first to third conveying sequence columns 70a to 70c in which ten automatic conveying carriages V are arranged in series, . The automatic transporting vehicle V constituting each of the transporting shifts 70a to 70c and the automatic transporting vehicle V on each of the transporting routes R21 to 24 are the same as the automatic transporting vehicle V, To be replaced. Each worker Wa is arranged for each automatic transporting vehicle V constituting each transporting sequence 70a to 70c.

The automotive transport vehicle V moves the original (base material) of the engine, which is placed on the pallet, along the first transport route R21 from the engine round supply section (not shown in the lower right of the figure) The rightmost end). The worker Wb places the first part conveyor part on the pallet. Then, the automatic transporting vehicle V travels to the starting end (the right end in the drawing) of the first transporting train 70a. Then, at the same time, each automatic transporting vehicle V constituting the first transporting sequence 70a is shifted one by one in the traveling direction (the left direction in the figure). Then, each worker Wa assemble the parts in charge.

The same applies to the second transport route R22, the second transport sequence 70b, the third transport route R23, and the third transport sequence 70c.

In this way, the circular form (base material) of the engine placed on each automatic transporting vehicle V is positioned such that the automatic transporting vehicle V is positioned at the end of the third transporting train 70c (left end in the figure) Assembled, all the parts are assembled to complete the engine.

Then, the automatic transporting vehicle V travels along the fourth transport route R24 to the test site of the engine, where the engine is removed from the pallet. Thereafter, in a state in which the empty pallet is placed on the pallet, Return to the engine circular feed section.

As described above, in this embodiment, unlike the first and second embodiments, the conveying sequence 70a to 70c connected to the automatic conveyance carriage V, not the roller conveyor, is used as the partial conveyance route. Therefore, it is not necessary to install a roller conveyor on purpose. It is also possible to easily change the number of the conveying rollers 70, the arrangement method (serial or parallel), and the number of the automatic conveying carriages V constituting each conveying sequence 70,

According to the first aspect of the present invention (Claim 1), only a part of a plurality of partial conveyance routes can be assembled, and at that time, another component conveyance route can be maintained or used for other kinds of assembling operations.

In addition, the operator does not have to independently procure the parts for the assembly work, and can concentrate on the assembly work, so that the work efficiency of the assembly can be improved.

According to the second aspect of the present invention (claim 2), it is also possible to save space without reducing the efficiency of transporting between the partial transport paths.

According to the third aspect of the present invention (the third aspect of the invention), the same effect as the first aspect of the present invention can be obtained.

Claims (3)

An assembly line for assembling parts sequentially onto a base material while the base material is being moved by a conveyance path is characterized in that the conveyance path is divided into a plurality of partial conveyance paths, And a part transporting route transfer means for receiving a part of the base material partially assembled in the furnace and a part to be assembled in the after transferring route and transferring the part to the after-transferring route is provided. The assembly line according to claim 1, wherein the plurality of partial conveying paths are provided in parallel and in a positional relationship close to the end portions of the front conveying path and the starting end portions of the rear conveying path. (A) a step of supplying a component to be assembled together with a base material to a starting end portion of a plurality of divided part conveying paths, in the part conveying path, and (b) a step of assembling the supplied parts to the base material, and (c) a step of receiving a component for assembling the base material and the back-conveying path in which the parts are assembled in all the broadcasting channels and supplying the parts to the back- (b) and (c) are performed at least once or more.