JPH04206899A - Assembling method for component - Google Patents

Abstract

PURPOSE:To simultaneously assemble many components at once by a series of operation once by supporting the components by separate pallets in an aligned state, transferring desired components to other pallet, and inverting a desired pallet. CONSTITUTION:A pallet 11 is placed on a conveyor 22 by a vertical lifter 20, and conveyed. A pallet 12 engaging rings 2 with protrusions 17 from a first stocking unit 26 to support them is placed on a conveyor 30 while the pallet 11 is being conveyed. The pallets 12, 11 are inverted by an inverting unit 34 to invert a case 2 and the ring 2 upside down in the pallets 11, 12, the opened part of the case 1 is disposed above, and the ring 2 is inserted into the inside. A board 3 is inserted into the ring 2 in the pallet 11 on the conveyor 22, and disposed on the ring 2 to complete assembling.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an assembly method used to assemble a plurality of types of parts, such as a case, a ring, and a transistor with a substrate, which constitute an electret condenser microphone (ECM).

2. Prior Art Conventionally, as shown in FIG. 4, in order to assemble the cylindrical bottomed case 1, which is a component of an ECM, a ring 2, and a transistor 4 attached to a circular substrate 3, the steps shown in FIG. The assembly equipment shown is used. As shown in FIG. 5, an index table 42 is rotatably supported on a base 41. As shown in FIG. Assembly parts 43 are formed at eight division positions in the index table 42, and are intermittently rotated in the direction of arrow A by a driving means (not shown). Every other assembly section 43 in the index table 42 is provided with supply means 44, 45, and 46 for supplying the case 1, the ring 2, and the transistor 4 with the substrate 3 in order in the rotational direction.
4, 45, and 46 are each composed of a parts feeder 47, a hopper 48, and a linear feeder 49. An insertion unit 50 s 51 , 52 is provided at the tip of each linear feeder 49 for inserting the transported case 1 , ring 2 , and transistor 4 with substrate 3 into the assembly section 43 . A marking unit I/53 is provided between the insertion units (insertion units) 50 and 51, and a height inspection unit I/54 is sequentially provided on the downstream side in the rotational direction of the insertion/zt-=-butt 52.
, Defective product removal unit 55, Good product removal unit;-Kit 5G
is provided. The knits 56 are connected to a device for the next process (not shown) by a take-out conveyor 57.

Next, the assembly method will be explained.

The index daple 42 is rotated intermittently, and when stopped due to the intermittent rotation, the following operation is performed. First, insert-
1. One case 1 on the linear feeder 49 of the supply means 44 is separated by the operation of the knit 50 and inserted into the assembly section 43 of the index table 42. Next, the marking unit 53 marks the case 1. Next, the linear feeder 4 of the feeding means 45 is
Insert the ring 2 on the top 9 into the inside of the case 1.

Next, the transistor 4 of the transistor 4 with the substrate 3 on the linear feeder 49 of the supply means 46 is inserted into the inside of the ring 2 using the insert unit 52 to complete the assembly. Case 1, ring 2 by 54
, the presence or absence of the transistor 4 with the substrate 3 is determined, and defective products are discharged from the device by a defective product discharge unit 55,
Only non-defective products are taken out by a non-defective removal unit 56 on a conveyor 57.
It is then taken out and transported to the next process. This cycle is performed continuously.

In this manner, even with the conventional assembly method described above, multiple types of parts can be sequentially assembled as the index table 42 rotates intermittently.

Problems to be Solved by the Invention However, in the above conventional parts assembly method, the parts are assembled in one piece.
There is a limit to how quickly the assembly work can be done because the parts are supplied and transported one by one to be assembled one by one. Furthermore, in order to speed up the assembly work, it is necessary to increase the rotation speed of the index table, which causes problems such as poor transportation stability.

The present invention solves these conventional problems, and allows a large number of pieces to be assembled at the same time.
It is an object of the present invention to provide a method for assembling parts, which can reliably transport and assemble parts by slowing the transport speed, and can improve assembly work efficiency.

Means for Solving the Problems The technical solution of the present invention for achieving the object described in item 1 is to support a large number of parts of the same type in an aligned state on one pallet, and to support a pallet that supports multiple types of parts. are conveyed by a conveyor, and the parts are assembled by at least transferring the desired parts to another pallet and reversing the desired pallet.

Therefore, according to the present invention, a large number of parts are supported in an array on separate pallets, and while these pallets are being conveyed by a conveyor, a desired part is transferred to another pallet, and a desired part is transferred to another pallet. By performing operations such as reversing the parts, a large number of parts can be assembled simultaneously in a series of - times.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

Figures 1 (a) and (b) are an overall plan view and a side view, respectively, of a pallet used in the method of assembling parts in an embodiment of the present invention; A partially enlarged sectional view, a partially enlarged side view, a partially enlarged sectional view, and FIG. 2 are overall schematic plan views showing an assembly apparatus used in a method of assembling parts in an embodiment of the present invention.

Palette 11.12.13 shown in Figures 1(a) and (bl)
are the above ECM components, case 1 and ring 2,
The structure is such that a large number of transistors 4 with substrates 3 can be supported and transported in parallel in a plurality of rows and columns. That is, on the upper surface side of the pallet 11, a large number of recessed holes 14 into which the case 1 is inserted are provided in rows vertically and horizontally, and each recessed hole 14
is penetrated to the bottom side by a small diameter auxiliary hole 15 in the center of the bottom. On the upper surface side of the pallet 12, a large number of large-diameter protrusions 16 into which the case 1 is fitted are arranged vertically and horizontally in multiple rows, and at the upper center of each protrusion 16 there are small-diameter protrusions into which the ring 2 is fitted. A portion 17 is integrally provided. On the upper surface side of the pallet 13, a large number of recessed holes 18 into which transistors 4 with substrates 3 are inserted are provided in rows vertically and horizontally, and each recessed hole 18 is penetrated to the bottom side by a small diameter auxiliary hole 10 in the center of the bottom. . Each pallet) 11, 12, 13 is machined with high precision so that it can correspondingly support, for example, 160 cases, rings 2, and transistors 4 with substrates 3.

To explain the assembly apparatus, as shown in FIG. 2, a pair of four-down lids 20 and 21 are connected by a conveyor 22. Down from the lid 20 side to one -L
A supply device 23 for the case 1, a coach ink unit 24, and a marking unit 25 are sequentially provided along the conveyance side of the conveyor 22 toward the lower lifter 21 side. Conveyors 30 and 3 are arranged parallel to the conveyor 22 between the first and second stocking devices 26 and 27 and between the third and fourth stocking devices 28 and 29. ] are connected. 1st and 2nd
A transfer/insertion unit 32 and reversing units 33 and 34 are provided between the stock devices 26 and 27 so as to straddle the conveyors 22 and 30.

A transfer/insertion unit 35 is provided between the third and fourth stock devices 28 and 29 so as to straddle the conveyors 22 and 31, and a finished product take-out unit 36 is provided on the conveyor 22 side.

Next, a method of assembling the embodiment of the present invention using the above assembly apparatus will be explained with reference to the assembly process explanatory diagrams shown in FIGS. 3(a) to 3(g).

The pallet 11 is placed on a conveyor 22 through the upper and lower lids 20 and conveyed. During this conveyance, each work position is positioned and each work is performed. First, as shown in FIG. 3<a), the suction head of the component supply device 23
160 cases 1 are simultaneously fed into the recessed holes 14 of the pallet ] 1 in an inverted state with the bottom facing upward, and then the T)-dink unit 24 and the marking unit 25
Coding and marking are performed on the surfaces of the cases 1 supported within the pallets 11, respectively. While the pallet 11 is being transported, the first stocking device 26 attaches a link 2 to each protrusion 17 as shown in FIG. 3 (bl).
The pallet 12 fitted and supported is placed on the conveyor 30. These pallets 11 and 12 are transferred to the loading/inserting unit 32.
When the position is reached, the 160 cases 1 supported on pallet l-1-1 are moved by this transfer/insertion unit 32.
As shown in FIG. 3 (C1), the ring 2 supported by the pallet 12 and the protrusion 16 are fitted and supported.

Next, the empty pallet 11 conveyed on the conveyor 22 is reversed by the reversing j-knit 33, and is superimposed on the pallet 12 conveyed and positioned on the conveyor 30, as shown in FIG. 3(d). , the recessed hole 14 of the pallet 11 is fitted into the case 1. As a result, the case 1 is fitted so that its bottom surface is located on the bottom side of the recessed hole 14.

Next, by inverting these pallets 1-12 and 11 with the inverting unit 34, the upper and lower sides of the case 1 and the ring 2 are turned inside the pallets 11 and 12, as shown in FIG. 3(e). Reverse the case so that the open part of the case is positioned upward, and the ring 2 is inserted inside it. Then, the empty pallet 12 is inserted into the second stocking device 27, and the pallet 11 supporting the case 1 and the link 2 is conveyed by the conveyor 22. During this time, as shown in FIG. 3(f), the third stock device 28
The pallet 13 in which the transistor 4 with the substrate 3 is inserted and supported is placed on the conveyor 31. These pallets 11 and
13 reaches the position of the transfer/insertion unit 35, the transfer/insertion unit 35 picks up the 160 transistors 4 with substrates 3, and as shown in FIG. Insert it inside ring 2 of
The substrate 3 is placed on the ring 2 to complete the assembly. Empty pallet I・13-1-〇- is inserted into the fourth stocking device 29-\ by the conveyor 31, and 160 assembled finished products (see Fig. 4) are taken out by chugging by the finished product take-out unit 3G. One cycle of assembly operation is completed. The empty pallet 11 is supplied to the lower lifter 21 by the conveyor 22, lowered by the 20L lower lid 21, passed through the return side of the conveyor 22,
Enter the top and bottom lifter 2o.

As described above, according to the above embodiment, the pallets 11, ]2, 13 that support a large number of the case 1, ring 2, transistor 4 with substrate 3, which are each assembled parts, are used, and these pallets 11, 12, 13 are conveyed. 22.30.31, and during this time, positioning at each work position and processing, transfer, stacking, reversing, and taking out work can be done simultaneously, reducing the work time per part. It has the advantage of being able to significantly shorten the time and improve production capacity.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described above, a large number of parts are supported in an array on separate pallets, and while these pallets are being conveyed by a conveyor, a desired part is placed on another pallet I. By carrying out operations such as transferring to the pallet and reversing the desired pallet, a large number of parts can be assembled simultaneously in a series of - operations. In this way, since a large number of parts are transported simultaneously, the transport speed can be slower than the conventional single-line transport of individual parts, and therefore parts can be transported in a stable state and assembled reliably. Furthermore, assembly work efficiency can be improved.

[Brief explanation of the drawing]

FIGS. 1(a) and (bl) are an overall plan view and a side view, respectively, of a pallet used in the method of assembling parts in an embodiment of the present invention, and FIGS. 1(C), (d), and (e) are pallets, respectively. 2 is a partially enlarged sectional view, a partially enlarged side view, and a partially enlarged sectional view; FIG. 2 is a schematic plan view of the entirety without showing the assembly apparatus used in the method of assembling parts in an embodiment of the present invention; and FIG. (a)
〜((to) is an assembly process explanatory diagram showing a method for assembling parts in an embodiment of the present invention, FIG. 4 is an explanatory diagram showing an example of assembled parts, and FIG. 5 is used for a method for assembling parts in a conventional example. It is a schematic plan view of the whole assembly device. ■... Case, 2... Ring, 3... Board, 4...
...transistor, 11.12.13...palette,
20.21... Downhill lid, 22... Conveyor, 2
3... Parts supply device, 24... Coating unit, 25... Marking unit, 26.27.28.
29...Stock equipment! , 30.31...conveyor,
32... Transfer and insertion unit, 33. 34... Reversing unit, 35... Transfer and insertion unit, 36... Finished product take-out unit. Name of agent Patent attorney Akira Okaji and two others -] 3- Figure 4 Board

Claims (1)

[Claims] Supporting a large number of parts of the same type in an aligned state on one pallet, transporting the pallet supporting each part by a conveyor, positioning it at each work position, and transferring at least desired parts to another pallet, A method for assembling parts, which comprises assembling parts by performing a desired inversion operation of a pallet.