JPH0439193B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for attaching a terminal member having a plurality of terminal pieces commonly connected to a connecting portion to a board member such as a circuit board, and cutting the board member. The present invention relates to a method for cutting a terminal member, which allows the connection portion to be separated without any need for cutting.

Prior Art FIG. 10 is a perspective view of a typical prior art.

For example, a circuit board 2 on which a plurality of electronic components 1 and the like are mounted while being carried on a conveyor has a wiring layer formed on one surface 3 by a printing method or the like, and a wiring layer on the other surface 4. The pin terminals of the electronic component 1 mounted thereon are connected to the wiring layer by soldering. In such a circuit board 2, a dividing notch groove 5 is formed in the circuit board 2 before the electronic component 1 is attached thereto, and by forming the notch groove 5, the electronic component 1 It is divided into a board main body 6 and an operation piece 7, on which a board is attached.

When forming such a notch groove 5, a pin hole through which a pin terminal of the electronic component 1 is inserted is formed in the main body 6, and a plurality of through holes 8 are formed at predetermined intervals l1. be done. Further, the operating piece 7 is formed with a positioning hole 9 for fixing and positioning the substrate 2 on the conveyor.

A terminal member 10 is attached to the through hole 8 of the circuit board 2 as described above. This terminal member 10 commonly connects each terminal piece 11 with a terminal piece 11 that is individually inserted into the through hole 8 and soldered to a wiring layer formed on one surface 3 of the circuit board 2. Connecting part 1
2. The terminal piece 11 has a width l2, and this width l2 is, for example, about 1 mm. Therefore, the inner diameter of the through hole 8 is selected to be large enough to allow the terminal 11 to be inserted gently therethrough. Further, the interval between each terminal piece 11 is the same as the interval l1 between the through holes 8. Terminal piece 1 of such a terminal member 10
1 is inserted through the through hole 8 of the circuit board 2, while the surface 3
The tip of the terminal piece 11 protruding from the terminal piece 11 is caulked and soldered to the wiring layer described above.

When cutting the connecting portion 12 of such a terminal member 10, as shown in FIG. 11,
The terminal piece 11 of the terminal member 10 is inserted into the through hole 8 of the circuit board 2.
is inserted and soldered, and the connecting portion 12 is mounted on the operating piece 7, as shown in FIG.
Divide. In this state, the terminal piece 11 is cut, and the connecting portion 12 is separated from the terminal piece 11 soldered to the main body 6, as shown in FIG.

In this way, it is possible to measure and inspect the electronic component 1 mounted on the main body 6 of the circuit board 2 with the connecting portion 12 shown in FIG. 11 being separated. That is, when a pin terminal such as a measuring device is brought into contact with each measuring position of the circuit wiring of the wiring layer formed on the other surface 3 while the connecting portion 12 remains integrally connected to the terminal piece 11, the connection is made. Therefore, it is impossible to inspect the electrical constants of the electronic component 1, the connection state between the pin terminal of the electronic component 1 and the wiring layer by soldering, etc. As mentioned above, the connecting portion 12
need to be separated.

Problems to be Solved by the Invention In such prior art, in order to separate the connecting portion 12, the operating piece 7 must be separated from the notch groove 5, and therefore the board body 6 and the operating piece 7 are separated.
A problem arises in that processing cannot be performed continuously along a series of transport paths while the circuit board 2 is positioned without being separated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for cutting a terminal member that allows only the connecting portion of the terminal member to be separated without separating the board body and the operation piece.

Means for Solving the Problems The present invention provides a substrate body on which circuit wiring is formed;
A board member including an operating piece integrally formed with a board main body, a plurality of terminal pieces attached to the board main body and having a length spanning the operating piece, and a connecting portion commonly connecting each terminal piece. preparing a terminal member including a terminal member, forming a through hole at a position corresponding to the terminal piece of the operation piece, inserting a cutting blade into the through hole to cut the terminal piece,
This is a method for cutting a terminal member, characterized in that the connecting portion is separated from a terminal piece attached to a board main body.

Effect According to the present invention, the cutting blade is inserted into the through hole formed in the operation piece of the substrate member, and the terminal piece of the terminal member attached to the substrate member is cut, thereby separating the connecting portion. Therefore, there is no need to cut the board body of the board member and the operating piece, and this makes it possible to perform processing work with the operating piece attached to a conveyor, for example, improving work efficiency. can be achieved.

Embodiment FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a plan view of a portion of the embodiment shown in FIG. The substrate member 20 is made of, for example, an epoxy resin or a phenolic resin material reinforced with glass fibers, and both surfaces 21 and 22 are formed with cutout grooves 23 and 24 that extend in a straight line. By forming the notch grooves 23 and 24, the base plate member 20 can be divided into a base body 25 and an operating piece 26. A plurality of electronic components 2 are mounted on the board body 25.
7 is installed.

Further, on the other surface 22 of the substrate body 25, a third
As shown in the figure, the wiring layer 29 is formed with a predetermined wiring pattern, and the wiring layer 29 is formed with a predetermined wiring pattern.
A resist layer 30 is formed to cover 9. In the vicinity of the notch grooves 23 and 24 of the board main body 25, the main body 2
An insertion hole 31 is formed through which the material 5 is inserted in its thickness direction. A plurality of terminal pieces 32 extending across the operating piece 26 are inserted into the insertion hole 31 .
A tip 33 protruding from the other surface 22 of 2 is bent along the surface 22 and is soldered with solder 34 in contact with the wiring layer 29.

Each terminal piece 32 is commonly connected by a connecting part 35, and these terminal pieces 32 and the connecting part 35 are integrally formed to constitute a terminal member 36. As shown in FIG. 2, the terminal pieces 32 of this terminal member 36 are formed with an interval l10 between them, and this interval l10 is, for example, about 4 mm.

Further, the width l20 of the terminal piece 32 is, for example, about 1 mm. Such a terminal member 36 is connected to the board member 2.
0, a part of the terminal piece 32 protruding from the insertion hole 31 toward the one surface 21 side and the connecting portion 35 are in close contact with the one surface 21, and the operation piece 26 has a terminal. A circular through hole 37 is formed at a position corresponding to the piece 32 at a distance W from the notch groove 23. At the position where such a through hole 37 is formed, the terminal piece 32 is cut as will be described later, and the connecting portion 35 is separated. Moreover, the distance W from the notch grooves 23 and 24 in which the through hole 37 is formed is as follows:
The protrusion of the terminal piece 32 from the cut surface after the connecting portion 35 and the operation piece 26 are separated, that is, from the position where the notch grooves 23 and 24 are formed, is set in advance so as to have a desired length. Therefore, the interval W
By forming the through hole 37 by changing the length to a predetermined length, the length of the terminal piece 32 protruding from the board body 25 can be adjusted.

Further, a positioning hole 39 is formed in the operation piece 26 near the side edge 38, and this positioning hole 39
By fitting positioning protrusions (not shown) or the like, the substrate member 20 is positioned when cutting the terminal piece 32.

FIG. 4 is a perspective view showing a schematic configuration of the cutting device 40 for the terminal member 36. The board member 20 with the terminal member 36 mounted thereon, which has been transported downstream in the transport direction A by a pair of transport belts 42 a and 42 b provided on the transport conveyor 41 , hits a stopper 65 provided on the cutting mounting 40 . The upper blade member 43 and the lower blade member 44 are disposed above and below, sandwiching the substrate member 20 and the terminal member 36, in a state where they abut and stop. The stopper 65 is fixed to a piston rod 67 of a double-acting cylinder 66, and by extending/retracting the piston rod 67, the stopper 65 is projected or retracted into the conveyance path of the substrate member 20, and the substrate member 20 is conveyed. It can be made to advance/stop in direction A. The substrate member 20 is
It is arranged between guide members 45a and 45b arranged on both sides of the conveyor belts 42a and 42b, and these guide members 45a and 45b are parallel to each other.

Therefore, the circuit member 20 mounted on the conveyor belts 42a, 42b and conveyed toward the downstream side in the conveyance direction A is guided by the guide members 45a, 45b on both sides in the conveyance direction A, and is a locking member 72 driven for angular displacement around each axis of support shafts 70 and 71 by moving cylinders 68 and 69;
73 is a locking hole 74, 7 formed in the substrate member 20.
5, the substrate member 20 is positioned at the stop position. Note that a positioning protrusion (not shown) fits into the positioning hole 39 and is locked to the conveyor belts 42a, 42b.

The upper blade member 43 has a rectangular cross section perpendicular to its axis, and has a length that is at least approximately equal to the length of the terminal member 36. This upper blade member 43 is fixed to a mounting member 46 and connected to a piston rod 49 of a double-acting cylinder 48 mounted on an inverted C-shaped frame 47. This double-acting cylinder 48 is moved to the piston rod 4 by, for example, pressurized air from a pressure source (not shown).
9 is a pneumatic cylinder that expands/retracts.

Such a double-acting cylinder 48 is controlled by a control means (not shown), and when the cutting surface 50 of the upper blade member 43 is in light contact with the upper surface 51 of the terminal member 36, the piston rod 49 is extended. stop.

Further, the lower blade member 44 is formed roughly in the shape of a right cylinder, and as shown in FIG. A step surface 54 extending in the axial direction and a support surface 55 perpendicularly connected to the step surface 54 are formed therebetween. The diameter D1 of such a lower blade member 4 is selected to be slightly smaller than the inner diameter D2 of the through hole 37 shown in FIG. 3 (D1<D2), for example.
It is about 2.0mm. Further, the rising height H of the stepped surface 54 is selected to be slightly larger than the thickness T1 of the terminal member 36 (H1>T1). This allows the tip of the lower blade member 44 to completely cut off the terminal piece 33 of the terminal member 36 when it passes through the through hole 37 and cooperates with the upper blade member 43 to cut the terminal piece 33 of the terminal member 36. be able to. Furthermore, when the terminal piece 33 is cut, since the terminal piece 33 is held between the support surface 55 of the lower blade member 44 and the cut surface 50 of the upper blade member 43, the terminal piece 33 is cut by cutting. It is possible to prevent the formation of fluff or warp on the cut surface, thereby improving the processing quality.

Referring again to FIG. 4, the lower blade member 44 as described above is fixed to the mounting member 56 at intervals. The mutual spacing between the lower blade members 44 is determined by the through-hole 3
7, that is, equal to the interval l1 between the terminal pieces 32. With this, the lower blade member 44 can be inserted into each through hole 37 with the through hole 37 of the substrate member 20 placed directly above the lower blade member 44, and each terminal piece 32 can be inserted at once. Can be cut. A piston rod 58 of a double-acting cylinder 57 is attached to the mounting member 56 to which these lower blade members 44 are fixed.
is fixed to the frame 47. This double-acting cylinder 57 is a pneumatic cylinder that extends/retracts the piston rod 58 with the same configuration as the double-acting cylinder 48 described above, and is controlled in synchronization with the double-acting cylinder 48 by a control means (not shown). , the lower blade member 44 attached to the attachment member 56 is configured to reciprocate up and down. Double acting cylinder 4
8 and 57 are pressed, the upper blade member 43 and the lower blade member 44 move toward each other,
The terminal piece 32 can be cut.

FIG. 6 is a flowchart showing the operation of separating the connecting member 35 using the cutting device 40,
FIG. 7 is an enlarged cross-sectional view of the vicinity of the through hole 37 of the base plate member 20 showing the cutting operation of the upper blade member 43 and the lower blade member 44. First, work is started at step n1, and at step n2 the wiring layer 29 is
and a substrate member 20 on which a resist layer 30 is formed.
is prepared. Such a substrate member 22 has cutout grooves 23, 24; 76, 77, an insertion hole 31, locking holes 74, 75, and a through hole 37 formed in step n3, and a pin of an electronic component 27 is inserted therethrough. A pin hole is formed. Then, in step n4, the terminal piece 32 of the terminal member 36 is inserted into the insertion hole 31 of the board member 20, and its tip 33 is caulked so as to contact the wiring layer 29 as shown in FIG. It is then soldered. Further, a connecting portion 3 protruding from one surface 21 of the substrate member 20
The terminal piece 32 including the terminal piece 5 is bent so as to make surface contact with the one surface 21, and the terminal piece 32 crosses approximately the center of the through hole 37. In this state,
In step n5, the pin terminals of the electronic component 27 are inserted and mounted into the pin holes of the board member 20 formed in the step n3, and the pin terminals of the electronic component 27 and the wiring layer 29 are soldered, and the terminal member Soldering of the tip portion 33 of 36 is also performed at the same time. The electronic component 27 and the terminal member 36 are connected by soldering using a dip layer, for example.

The board member 2 with the terminal member 36 mounted in this way
0 is attached to the conveyor belts 42a, 42 of the conveyor 41 in step n6, and the positioning holes 39
is transported in the transport direction A in FIG. 4 with a positioning protrusion (not shown) fitted into the stopper
5 and stops. At this time, the lower blade member 44 is placed directly under the through hole 37, and as shown in FIG. 4
3 and the lower blade member 44 are now arranged.

In this state, when the double-acting cylinders 48, 57 are pressurized, each piston rod 49, 58 expands, the upper blade member 43 and the lower blade member 44 are displaced in a direction in which they approach each other, and the seventh As shown in FIG. 2, the cut surface 50 of the upper blade member 43 is the upper surface 51 of the terminal member 36.
Almost at the same time as the lower blade member 44 contacts the lower surface 59 of the terminal piece 33, the cut surface 52 of the lower blade member 44 contacts the lower surface 59 of the terminal piece 33. At this time, the upper surface 60 of the mounting member 56 is spaced apart from the other surface 22 of the substrate member 20 by a slight distance ΔT. In this state, when the piston rods 49, 58 of the double-acting cylinders 48, 57 further extend, the terminal piece 32 is cut off and attached to the lower blade member 44 together with the connecting portion 35, as shown in FIG. Therefore, it is lifted upward from one surface 21 of the substrate member 20. At this time, as described in FIG. The connecting portion 35 including the remaining portion of the terminal piece 32 is separated while it is still attached to the terminal piece 20.

When the connecting portion 35 is separated in this way, the double-acting cylinders 48, 5
Compressed air is supplied to piston rods 49 and 58.
is retracted, the upper blade member 43 and the lower blade member 44 are displaced in the direction away from each other, the cut surface 50 of the upper blade member 43 is separated from the upper surface 51 of the terminal piece 32, and the lower blade member 44 is transparent. It is pulled out through the hole 37.

In step n7, after the connection state and electrical constants of the electronic component 27 are measured, the locking states of the locking members 72 and 73 in the locking holes 74 and 75 are released, and the electronic component 27 is transported in the transport direction A. , at step n8,
The board member 20 is removed from the conveyor belts 42a, 42b, the operation piece 26 is separated from the notch grooves 23, 24, and in step n9, the board body is connected to the terminal 61 whose tip portion protrudes from the side edge piece 38. 25
are formed, and the locking holes 74,
The side edge portion including 75 is separated to complete the installation work of the terminal 61.

As another embodiment of the present invention, as shown in FIG. 8, a plurality of through holes 37 may be formed in advance in the operating piece 26 between the connecting portion 35 and the insertion hole 31. This allows the terminal pieces 32 to be separated at a distance of W1.
Alternatively, the cutting can be performed at any cutting position of the interval W2.

As yet another embodiment of the present invention, as shown in FIG. In this case, it becomes possible to provide a single lower blade member having a length corresponding to the length in the longitudinal direction of this through hole 37b, and furthermore, it is possible to freely change the interval l10 between the terminal pieces 32. becomes possible.

Effects of the Invention According to the present invention, a terminal piece of a terminal member is cut by inserting a cutting blade into a through hole formed in a substrate member,
Since the connecting portion is separated, there is no need to separate the operating portion before the connecting portion is separated, and the board member is conveyed within a series of conveying paths while being attached to a conveying means such as a conveying belt. It becomes possible to perform processing. Thereby, the workability of processing the substrate member can be improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a plan view of a part of the embodiment shown in FIG. 1, and FIG. 4 is a simplified perspective view showing the schematic configuration of the cutting device 40 for the terminal member 36; FIG. 5 is an enlarged perspective view showing the vicinity of the tip of the lower blade member 44;
FIG. 6 is a flowchart for explaining the operation of disconnecting the connecting portion 35 using the cutting device 45;
The figure is an enlarged sectional view of the vicinity of the through hole 37 of the base plate member 20 showing the cutting operation of the upper blade member 43 and the lower blade member 44, FIG. 8 is a plan view of a part of another embodiment of the present invention, and FIG. 9 10 is a plan view of a portion of yet another embodiment of the present invention; FIG. 10 is a perspective view of a typical prior art;
FIG. 11 is a simplified plan view for explaining the cutting operation of the terminal member 1 shown in FIG. 10. 20... Substrate member, 23, 24... Notch groove,
25... Board main body, 26... Operating piece, 28... Through hole, 32... Terminal piece, 35... Connection portion, 36...
Terminal member, 37a, 37b...Through hole, 43...Upper blade member, 44...Lower blade member.

Claims (1)

[Scope of Claims] 1. A board member including a board body on which circuit wiring is formed, an operation piece integrally formed with the board body, and a plurality of board members attached to the board body and having a length spanning the operation piece. A terminal member including a terminal piece and a connecting part that commonly connects each terminal piece is prepared, a through hole is formed at a position corresponding to the terminal piece of the operation piece, and a cutting blade is inserted into the through hole. and cut the terminal piece.
A method for cutting a terminal member, comprising separating the connecting portion from a terminal piece attached to a board main body.