JP2001259938A - Production line for keyboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently promote automation with suppressing an increase of cost for facility in a production line. SOLUTION: A pallet 11 is connected to a screwing device 14 integrated in the production line by a connecting part provided to a main pallet 12. A keyboard W is supported at a specified position in a specified attitude by a guide 13c of a sub-pallet 13. The keyboard W and the screwing device 14 are surely positioned on a conveyor in the production line. Screwing can be thereby surely completed without performing positioning by an operator in a screwing work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a semi-automated production line that has a process that requires manual labor in order to cope with the production of a large variety of products with a small capital investment, thereby efficiently promoting automation without increasing equipment costs. It is related to the technology for performing.

[0002]

2. Description of the Related Art In today's field of industrial products, automation of production lines for efficient mass production is being promoted. Particularly in recent years, in order to meet the needs of the market, fully automated lines for simultaneously producing a plurality of models in small quantities have been realized. In constructing such a fully automated line, it is indispensable to replace the manual work for each process conventionally performed by an operator with an automatic machine such as an industrial robot.

However, in order to introduce an automatic machine that performs operations corresponding to a plurality of models into all processes of a production line, a large capital investment is required. For this reason, even now, when it is necessary to respond to a request for the production of a large variety of products with less capital investment, human resources are used for specific processes in view of an increase in equipment costs.

FIG. 8 schematically shows a semi-automated production line 1 for personal computer keyboards. The semi-automated line 1 includes an assembly line 2 and a packing line 3 for packing products that have been assembled in the assembly line 2. Assembly line 2
Has a first step 2a to a fifteenth step 2q.

The first step 2a, the third step 2c,
In the fifth step 2e and the sixth step 2f, main parts such as a case and a board are supplied from a parts store by the parts feeder 4. The operator of each of these processes transfers the components flowing on the conveyor of the assembly line 2 to the work table 5 beside the line, combines them with the components supplied by the parts feeder 4, and then sends them to the assembly line 2 for sending to the next process. Do the work of returning.

In an eighth step 2h to a tenth step 2j, a keystroke inspection of the keyboard is performed. In such a keying inspection, the operator sets the keyboard on the conveyor on the tester 6 on the side of the line, and after the inspection, returns to the assembly line 2 for sending to the next step.

[0007]

As described above, in the semi-automated line 1, since some of the processes involve human labor, the operators involved in the work require skill and are required to set up a new factory. Had problems such as difficulty in securing human resources.

Further, it is true that it is more advantageous to promote automation than to rely on manual work in terms of stably performing a certain level of assembly work. However, semi-automation can be performed without increasing costs. There were various barriers to improving the automation rate in the line. In particular, the semi-automated line 1 is difficult to position the parts flowing on the conveyor with the automatic machine because the parts are not conveyed in a state of being positioned with respect to the conveyor as the conveying means. However, it makes automation difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to cope with the production of many kinds with a small capital investment, and to reduce the equipment cost in a production line in which processes are performed manually. The purpose is to efficiently promote automation while suppressing the rise.

[0010]

According to a first aspect of the present invention, there is provided a keyboard production line comprising: a pallet on which all main parts are placed in a predetermined arrangement;
It is a keyboard production line that is put into the first step of the assembly line and performs assembly or inspection based on the pallet in each of the subsequent steps, in which a screw fixing device for fixing each main part of the keyboard is inlined, and And a connection part with the screwing device is provided.

According to the present invention, since the pallet is connected to the in-line screw fixing device at the connecting portion, the positioning between the components on the pallet and the screw fixing device can be reliably performed on the line. Can be performed.

Further, in the keyboard production line according to a second aspect of the present invention, the pallet is provided with a receiving portion for receiving a main part in a predetermined position at a predetermined position, and the pallet is positioned and held. A parent pallet, and the parent pallet is provided with a connection portion with the screw fixing device.

According to this configuration, the component is received at a predetermined position by the receiving portion of the child pallet in a predetermined posture, and the child pallet is positioned by the parent pallet. Therefore, by positioning the parent pallet provided with the connection portion with the screw fixing device and the screw fixing device, the main component can be screwed with reference to the parent pallet.

In a keyboard production line according to a third aspect of the present invention, the screw head of the multi-axis screw device is provided so as to be able to approach and retreat from the lower surface of the pallet. According to the present invention, the screwing operation is performed from below without performing the operation (turning over, etc.) of changing the posture of the component flowing in the line while being placed on the pallet.

According to a fourth aspect of the present invention, there is provided a keyboard production line according to the present invention, wherein a pallet on which all main parts are placed in a predetermined arrangement is supplied to a first step of an assembly line. A keyboard production line for assembling or inspecting based on the pallet in each of the subsequent steps, wherein a function tester for keys is inlined, and the pallet is provided with a connection portion with the function tester. I do.

According to the present invention, since the pallet is connected to the in-line function tester at the connection portion thereof, the parts on the pallet and the function tester are reliably positioned on the line. It becomes possible.

In the keyboard production line according to a fifth aspect of the present invention, the pallet includes a child pallet having a receiving portion for receiving a main part at a predetermined position in a predetermined posture, and positions and holds the child pallet. A connection part with the function tester is provided on the parent pallet.

According to this configuration, the component is received at a predetermined position by the receiving portion of the child pallet in a predetermined posture, and the child pallet is positioned by the parent pallet. Therefore, by performing positioning between the parent pallet having a connection portion with the function tester and the function tester, a function test of a key based on the parent pallet can be performed.

Further, in the production line according to a sixth aspect of the present invention, the child pallet is provided with a connection electrode with the function tester and a keyboard connection terminal. In this configuration, when all the main components are placed on the pallet in a predetermined arrangement, a keyboard cable is also connected to the keyboard connection terminal in advance. Then, at the time of a function test, only by connecting the function tester to the connection electrode,
The function tester and the keyboard are electrically connected.

Further, in the keyboard production line according to a seventh aspect of the present invention, a plurality of function testers are arranged over a plurality of steps. According to the present invention, the key of the keyboard is divided into three blocks, and each block is shared and tested by a function tester arranged in a plurality of steps, thereby making it possible to perform a test cycle in one function tester. Due to the relationship between the time and the transfer cycle time of the assembly line, it is possible to avoid a situation in which one function tester cannot test all keys.

[0021]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, the description of the same parts as those in the related art or corresponding parts will be omitted.

FIG. 1 schematically shows a production line 7 for a personal computer keyboard according to an embodiment of the present invention. The production line 7 includes a serving line 8 and an assembly line 9
And a packing line 10. The serving line 8 is provided in parallel with the assembly line 9. Each line is
It has a conveyor as a conveying means, and among them, at least for the assembly lines 8 and 9, a free flow conveyor is used.

In the production line 7, a pallet 11 shown in FIG. 2 is used for transporting the main components constituting the keyboard on the conveyor. That is, in the production line 7,
Conveying means is constituted by the conveyor of each line and the pallet 11. The pallet 11 includes a parent pallet 12 and a child pallet 13.
And

The parent pallet 12 flows at least on the conveyor of the serving line 8 and the assembly line 9 in a state where it is positioned. In addition, the child pallet 13 is used commonly for all keyboard models, and the child pallet 13 can be positioned and held detachably. Also, a screw fixing device and a function tester of the assembly line 9 are provided on the parent pallet 12 (both will be described later).
And a connecting portion for In contrast, child pallet 13
Is prepared by preparing a plurality of dedicated keyboards for each model of a keyboard to be assembled, selecting them as appropriate, setting them at appropriate positions on the parent pallet 12, and using them.

The child pallet 13 is provided with a guide 13c (see FIG. 4) for placing the main parts of the keyboard at a predetermined position in a predetermined posture.
The shape of c (receiving portion) differs for each model to be assembled. ). In the example of the pallet 11 shown in FIG. 2, three main components of the keyboard, the upper case sub-assembly Wa, the bottom case sub-assembly Wb, and the board unit Wc, are securely held at predetermined positions on the child pallet 13 by the guide. Placed on

As described above, since the parent pallet 12 is provided with a connection portion with the screw fixing device of the assembly line 9 and the function tester (both will be described later), the parts on the child pallet 13 are Via 12 it is also accurately positioned with respect to the screwing device and the function tester.

A keyboard connection terminal 13a is provided at a predetermined position of the child pallet 13. This connection terminal 13a
For example, a child pallet used when assembling a keyboard corresponding to a USB terminal is provided with a USB terminal. Furthermore, on the front or back of the child pallet 13,
An electrode 13b (see FIG. 6) for contacting a terminal of a function tester, which will be described later, is provided.
a. The electrode 13b is connected to the parent pallet.
Twelve suitable positions may be provided to secure a conduction path between the parent and child pallets.

The serving line 8 shown in FIG. 1 has a first step 8a to a fifth step 8e (each step is schematically shown by a square). The upper case sub-assembly Wa, the bottom case sub-assembly Wb, and the board unit W, which are main components of the keyboard, are shared by these steps.
Each component c (see FIG. 2) is placed at a predetermined position on the child pallet 13, and the cable of the board unit Wc is connected to the keyboard connection terminal 13a.
Such a serving operation is usually performed manually. However, since the serving line 8 is provided as a line independent of the assembly line 9, the progress of the work in the serving line 8 may not affect the assembly line 9. Few. In each of the first step 8a to the fifth step 8e, an actual operation step indicated by a solid line and a standby step indicated by a thin line in the figure are provided, and these standby steps are performed according to the progress of the operation of each step. It can be omitted.

The assembly line 9 has a first step 9a to a tenth step 9q. In consideration of the difference in the required time of each process, all processes are provided with a standby process indicated by a thin line and an actual operation process indicated by a solid line.

In the first step 9a of the assembly line 9, all the main components (upper case subassembly Wa, bottom case subassembly Wb, board unit W
Pallet where c) is already placed in the determined arrangement
11 is thrown. Such a loading operation can be performed by a pallet circulation system. Then, assembly or inspection in the subsequent steps is performed on the conveyor and on the basis of the pallet 11.

First, in the first step 9a, the board unit Wc (FIG. 2) is assembled to the bottom case sub-assembly Wb (FIG. 2) on the child pallet 13. Such work is performed manually, but the workability is good because each part is set at a predetermined position on the pallet 11 in a predetermined posture.

The second step 9b and the fourth step 9d are a waiting step (idle station), and stop at a predetermined place for a predetermined time to adjust a required time difference between the steps. In addition, if there is an increase in the number of steps when another model is produced using this line, the increased steps can be performed in these standby steps. In the next third step 9c, the board unit Wc assembled to the bottom case sub-assembly Wb in the first step 9a is screwed to the bottom case sub-assembly Wb. The screwing operation is performed by a screwing device (described later). At this time, by connecting the positioning pin of the screwing device and the parent pallet 12, the bottom case sub-assembly Wb on the child pallet 13 and the assembling thereof are assembled. The obtained substrate unit Wc can be accurately positioned with respect to the screw fixing device. Therefore, the screwing operation is performed accurately.

In the fifth step 9e, the upper case sub-assembly Wa (FIG. 2) is put on the bottom case sub-assembly Wb (FIG. 2) on the child pallet 13. Such work is also performed manually, but the workability is improved for the same reason as in the first step 9a.

In the sixth step 9f, the upper case sub-assembly Wa is screwed to the bottom case sub-assembly Wb. Also in the sixth step 9f, a screwing device described later is used. At this time, by connecting the positioning pin of the conveyor attached to the screw fixing device and the parent pallet 12, the bottom case sub-assembly Wb on the child pallet 13 and the upper case sub-assembly Wa put on the child pallet 13 are connected to the screw fixing device. , And the screwing operation is reliably performed. The following seventh step 9g includes a second step 9b and a fourth step 9b.
This is a standby step similar to step 9d.

Eighth step 9h, ninth step 9i, tenth step 9
In j, a function test is performed for each key of the keyboard. In the function test, each key is actually struck by a striking means of a function tester (described later), and it is checked whether or not the obtained output signal is a predetermined one. At this time, the function tester is electrically connected to the keyboard via the connection terminal 13a (see FIG. 2) by bringing the terminal of the function tester into contact with the electrode 13b (see FIG. 6) of the child pallet 13. Can be. Also, by connecting the positioning pins of the function tester and the parent pallet 12, the keyboard on the child pallet 13 can be accurately positioned with respect to the function tester, and an accurate keying test can be performed.

In the present embodiment, all keys are divided into three blocks in consideration of the test cycle time of one function tester and the transport cycle time of the assembly line 9, and the three function testers are used. Are arranged over an eighth step 9h, a ninth step 9i, and a tenth step 9j, and the blocks are shared and tested by the function tester in each step.

In the following eleventh step 9k, laser printing is performed on each key top. Also in such a process, by performing positioning between the laser marker and the parent pallet 12,
It enables accurate printing. Finally, the twelfth step 9m,
In the 13th step 9n, the 14th step 9p, and the 15th step 9q,
Performs visual inspection, LED operation inspection, key touch feeling inspection, etc. In addition, along with the above inspection, pallet 11
It is possible to easily check for missing parts by inspecting whether or not unmounted parts remain. Keyboards that pass each of these tests are sent to packing line 10.

Here, the sixth step 9f (bottom case subassembly Wb) of the assembly line 9 will be described with reference to FIGS.
And the step of screwing the upper case sub-assembly Wa)
A description will be given of the multi-spindle screwing device employed in the first embodiment.

The screwing device 14 has a plurality of screwing heads 15 for simultaneously screwing a plurality of screws on the keyboard W (or a component thereof) positioned on the pallet 11. The screwing head 15 is provided with a screw feeding device for feeding the screw by air pressure. The screwing head 15 is provided so as to be able to approach and retreat from the lower surface of the pallet 11. Therefore, the screwing device 14 can perform a screwing operation from below the keyboard W.

A motor 16 as a power source is provided for each shaft, and the motor 16 and the screwing head 15 are connected by a multi-part universal shaft 17. The illustrated universal shaft 17 is divided into three parts. In addition, screw head
A plate 18 for positioning 15 is replaceably provided for each keyboard W model to be screwed.

The plate 18 is provided with ten holding blocks 19 for holding and positioning the base end 15a of the screwing head 15. As shown in FIG. 5, the holding block 19 has a cut-through hole for inserting the base end 15a of the screwing head 15 therethrough. A through hole is also formed at a corresponding position of the plate 18. Each holding block 19 is plate-mounted by two screws 20.
Fixed to 18. By slightly loosening the two screws 20, the holding block 19 with respect to the plate 18 is
Can be fine-tuned. The number and direction of the holding blocks 19 are appropriately changed according to the number and position of the screwing heads 15.

Further, the plate 18 and the plate 21 for supporting the motor 16 are supported by a linear slider 22 so as to be separated from and approachable to each other, as shown in FIG. Further, since the linear slider 22 is supported by the cylinder 23, by appropriately adjusting these, the keyboard W on the conveyor is adjusted.
, The distance of the head 15 to the head can be adjusted freely. Note that, when the position is adjusted by the linear slider 22 or the plate 18 is changed, a change in the position that occurs between the motor 16 and the screwing head 15 is absorbed by the deformation of the universal shaft 17.

In FIGS. 3 to 5, a portion indicated by reference numeral 24 is a cushion pad, which comes into contact with an appropriate position of the keyboard W or the pallet 11 to fix the positions of the screwing head 15 and the keyboard W. Ensure work. In addition, it is also possible to use several portions of the cushion pads 24 as connecting portions (connecting pins) with the parent pallet 12. Further, the connection portion with the parent pallet 12 may be provided as a member separate from the cushion pad 24.

Further, in this embodiment, ten screwing heads (only the tip 15a is shown in FIG. 5) are provided on the plate 18.
, But if necessary, screw head
It is also possible to insert and remove 15 itself to increase or decrease the number. The number of motors 16 to be installed is determined in consideration of the maximum number of simultaneous screwing operations.

Further, through holes are formed in the child pallet 13 of the pallet 11 so that the screwing device 14 can perform screwing work from under the keyboard W. , Each screw head 15
Are aligned with a predetermined screwing position via these through holes. Further, in order to prevent the keyboard W from rising, a guide 13c of the child pallet 13 (FIG. 4).
Also has a clamp mechanism for fixing the keyboard W. Further, since the conveyor of the assembly line 9 is a free-flow conveyor, no roller is disposed at the portion where each screwing head 15 is located, so that each screwing head 15
15 elevating passages are formed.

With the above configuration, it is not necessary to change the posture of the keyboard W flowing on the conveyor (such as turning over) while being placed on the pallet 11, and the bottom case sub-assembly Wb and the upper case It becomes possible to perform all the screwing operations when screwing the sub-assembly Wa on the conveyor.

Furthermore, since the plate 18 of the screwing device 14 is replaceable, a dedicated plate 18 is prepared for each keyboard model to be screwed, so that the position and number of screwing can be reduced. Can be easily changed even in the case where is different for each model. Since the screwing device 14 has the above-described features, it is easy to in-line the assembly line 9, and it is easy to improve the automation rate in the semi-automated line.

Next, the function tester 25 used in the eighth to tenth steps 9h to 9j (the step of performing a function test for each key of the keyboard) of the assembly line 9 will be described with reference to FIG. . The function tester, while the pallet 11 on which the keyboard W is placed, is placed on the conveyor of the assembly line 9, each key is actually pressed by the keying means of the function tester 25.
It is to check whether or not the output signal obtained thereby is a predetermined signal.

As described above, the parent pallet 12 is provided with a connection portion (not shown) for connection to the function tester 25, and each key of the keyboard W and the function tester 25
Of the keying means. The keying means has a number of contacts corresponding to each key of the keyboard W, and the number of contacts can be freely moved in and out by a piston rod or the like, and a necessary key can be freely selected and keyed. It has become. In order to check whether or not the output signal obtained by actually tapping the key by the keying means is a predetermined signal, a function tester is used.
Reference numeral 25 has a terminal (not shown) for contacting the electrode 13b provided on the child pallet.

Therefore, if the cable of the keyboard W is previously connected to the keyboard connection terminal 13a (see FIG. 2) of the child pallet 13 on the serving line 8, the terminal can be brought into contact with the electrode 13b during the function test. Function tester only through connection terminal 13a
25 and the keyboard W can be electrically connected, and this connection work does not require human power.

When the transport cycle time of the assembly line 9 is shorter than the cycle time required for testing one function tester, all the keys of the keyboard W are changed to three as in this embodiment. Eighth step 9h, ninth step 9
i. By adopting a configuration in which the test is performed in a shared manner in the tenth step 9j, all keys can be inspected on the pallet 11.

Therefore, as in the prior art, the operator sets the keyboard on the conveyor to the tester 6 on the side of the line, performs a keying inspection of the keyboard W, and returns to the assembly line 2 to send to the next step after the inspection. It is not necessary to perform the operation by manual operation, and the function tester 25 is inlined on the assembly line 9, so that the automation rate in the semi-automated line can be easily improved.

As shown in FIG. 1, the serving line 8 is provided in parallel with the assembling line 9 because the serving line 8 and the assembling line 9 are configured separately and independently. , Serving line 8 to each assembly line 9
It is suitable when the pallets 11 already arranged are supplied. In addition, since the parts feeders can be concentrated only on the serving line 8, the flow of parts as a whole line can be arranged.

On the other hand, as shown in FIG. 7, the serving line 8 can be provided in the assembly line 9. In FIG. 7, the assembly line 9 is located ahead of the line AA,
A serving line 8 is continuously provided at the rear to constitute one production line. In this case, the packing line 10 is arranged so as to pass above the serving line 8 from around the fourteenth step 9p and the fifteenth step 9q of the assembly line 9. Furthermore, at the front end of the assembly line 9 and the rear end of the serving line 8,
A parallel pallet lifter 26 is provided to transfer the pallets 11 between a return line 27 provided in parallel with the assembly line 9 and the serving line 8.

In the embodiment shown in FIG. 7, the serving line 8, the assembly line 9, the packing line 10, and the return line 27 are all integrated into one line, and are appropriately arranged according to the structure of the factory building. It is desirable to make a selection when changing the line configuration. Also, since the serving line 8 is arranged behind the assembly line 9, the parts feeder can be concentrated behind one line, but this also depends on the structure of the factory building. Can be arbitrarily changed such as arranging in front of the assembly line 9.

The operation and effect obtained by the embodiment of the present invention having the above configuration are as follows. First, with respect to the screwing device 14 which is inlined, the pallet 11
Each component (bottom case sub-assembly Wb and the board unit Wc assembled thereon, the bottom unit sub-assembly Wb, which is supported at a predetermined position by the guide 13c of the Case subassembly Wb and upper case subassembly W overlaid thereon
a) and the positioning of the screwing device 14 are performed on the assembly line 9.
Can be reliably performed on the conveyor. Therefore, screwing can be reliably completed without performing positioning work by the operator in the screwing work.

The screwing head 15 of the screwing device 14
Is provided so as to be able to approach and retreat from the lower surface of the pallet 11, so that the screwing device 14 can perform screwing work from below the keyboard W. Therefore, it is possible to perform a screwing operation from below, without performing an operation (for example, turning over) of a component flowing on the conveyor of the assembly line 9 while being placed on the pallet, and performing an operation by the operator. There is no need for manual work.

The pallet 11 is also connected to the in-line function tester 25 by the connecting portion provided on the parent pallet.
Thus, the keyboard W supported at a predetermined position in a predetermined posture and the function tester 25 can be reliably positioned on the conveyor of the assembly line 9.
Therefore, the position of each key of the keyboard W and the keying means of the function tester 25 can be surely aligned, and the function test can be performed accurately.

Further, in the serving line 8, the pallet
When placing all the main parts in a predetermined arrangement on 11,
By connecting a keyboard cable to the keyboard connection terminal 13a of the child pallet 13 in advance, the function tester 25 and the keyboard W are electrically connected only by connecting the function tester to the connection electrode 12a. It is possible to do.

For this reason, as in the prior art, the operator sets the keyboard on the conveyor on the tester 6 on the side of the line, performs a keying inspection of the keyboard W, and after the inspection, sends the keyboard W to the assembly line 2 to send it to the next step. It is not necessary to perform the returning operation through the action of human power, and it is easy to improve the automation rate in the semi-automated line.

In addition, the keys of the keyboard are divided into three blocks, and the eighth step 9h, the ninth step 9i, the tenth step
Three function testers arranged over process 9j
At 25, each of the blocks is shared and tested to obtain 1
Due to the relationship between the test cycle time of one function tester and the transfer cycle time of the assembly line, it is possible to avoid a situation in which all keys cannot be tested by one function tester.

According to the embodiment of the present invention, by obtaining the above-described functions and effects, it is possible to efficiently promote automation while suppressing an increase in equipment costs in a semi-automated production line.

[0063]

According to the present invention, the following effects are obtained. First, according to the keyboard production line according to claim 1 or claim 4 of the present invention, the parts on the pallet and the screw fixing device, or the parts on the pallet and the function tester are positioned on the line. It is possible to perform it reliably. Therefore, in the keyboard production line, it is possible to efficiently promote automation while suppressing an increase in equipment cost.

Further, according to the second or fifth aspect of the present invention, it is possible to reliably position the screw fixing device or the function tester with the component. Can be performed reliably.

Further, according to the invention of claim 3 of the present invention, the work which has conventionally been performed manually, such as the work of changing the position of parts on the assembly line, is eliminated, and further automation in the keyboard production line is promoted. be able to.

Further, according to the invention according to claim 6 of the present invention, the work of electrically connecting the function tester and the keyboard on the assembly line does not require manpower, and further automation on the keyboard production line is eliminated. Can be promoted.

In addition, according to the invention of claim 7 of the present invention, the function test can be reliably performed without changing the relationship between the test cycle time in one function tester and the transfer cycle time of the assembly line. And further automation in a keyboard production line can be promoted.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a production line for a personal computer keyboard according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a pallet constituting a transport means of the production line shown in FIG. 1;

FIG. 3 is a schematic front view of a multi-axis screw fixing device employed in the assembly line of FIG. 1;

FIG. 4 is a side view of the multi-axis screw fixing device shown in FIG. 3;

FIG. 5 is a plan view showing a pallet portion of the multi-axis screw fixing device shown in FIG. 3;

FIG. 6 is a schematic view of a function tester employed in the assembly line of FIG.

FIG. 7 is a schematic diagram showing another example of the layout of the production line of the personal computer keyboard according to the embodiment of the present invention.

FIG. 8 is a schematic diagram showing a conventional production line for a personal computer keyboard.

[Explanation of symbols]

 7 Production line 8 Serving line 9 Assembly line 11 Pallet 12 Parent pallet 13 Child pallet 14 Screw fixing device 25 Function tester

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Jun Sato 1-1-1, Katase, Fujisawa-shi, Kanagawa F-term in Mine Bear Co., Ltd. Fujisawa Works (reference) 3C030 DA02 DA04 DA14 DA29 DA32 DA37 3C042 RA11 RB14 RC01 9A001 BB02 BB04 BB06 DD07 JJ45 JJ46 JJ49 KK37 KK54 LL05

Claims (7)

[Claims] A pallet on which all main parts are placed in a predetermined arrangement is put into a first step of an assembly line, and a keyboard production line for assembling or inspecting the pallet based on the pallet in each subsequent step. A keyboard production line, wherein a screwing device for fixing each main part of the keyboard is inlined, and a connection portion with the screwing device is provided on the pallet. 2. The child pallet having a receiving portion for receiving a main part at a predetermined position in a predetermined posture,
The keyboard production line according to claim 1, further comprising a parent pallet for positioning and holding the child pallet, wherein the parent pallet is provided with a connection portion with the screwing device. 3. The keyboard production line according to claim 2, wherein a screw head of the multi-axis screw device is provided so as to be able to approach and retreat from a lower surface of the pallet. 4. A pallet on which all main parts are placed in a predetermined arrangement is put into a first step of an assembly line, and a keyboard production line for assembling or inspecting the pallet based on the pallet in each subsequent step. A keyboard production line, wherein a key function tester is inlined, and a connection portion with the function tester is provided on the pallet. 5. The child pallet having a receiving part for receiving a main part at a predetermined position in a predetermined posture,
5. The keyboard production line according to claim 4, further comprising: a parent pallet for positioning and holding the child pallet, wherein the parent pallet is provided with a connection portion with the function tester. 6. The keyboard production line according to claim 5, wherein a connection electrode for connecting to the function tester and a keyboard connection terminal are provided on the child pallet. 7. A method according to claim 4, wherein a plurality of function testers are arranged over a plurality of steps.
The keyboard production line according to any one of the preceding claims.