WO2015063827A1 - リード線カットアンドクリンチ装置 - Google Patents
リード線カットアンドクリンチ装置 Download PDFInfo
- Publication number
- WO2015063827A1 WO2015063827A1 PCT/JP2013/079099 JP2013079099W WO2015063827A1 WO 2015063827 A1 WO2015063827 A1 WO 2015063827A1 JP 2013079099 W JP2013079099 W JP 2013079099W WO 2015063827 A1 WO2015063827 A1 WO 2015063827A1
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- WIPO (PCT)
- Prior art keywords
- lead wire
- claw
- cut
- blade
- fixed
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/0473—Cutting and clinching the terminal ends of the leads after they are fitted on a circuit board
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/082—Integration of non-optical monitoring devices, i.e. using non-optical inspection means, e.g. electrical means, mechanical means or X-rays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
- Y10T29/4914—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
Definitions
- the present invention relates to a lead wire of an electronic circuit component (hereinafter abbreviated as a component unless otherwise specified) inserted in a lead wire insertion through hole of a circuit board (hereinafter abbreviated as a substrate unless otherwise required).
- the present invention relates to a lead wire cutting and clinching device that cuts and bends along the back surface of a substrate (hereinafter, abbreviated as a cutting and clinching device unless otherwise required).
- This lead wire-attached component is formed by inserting a lead wire into a through hole formed in the substrate, cutting the lead wire protruding from the back surface of the substrate into an appropriate length, and then bending it along the back surface of the substrate. Is mounted on the substrate.
- An example of a cut and clinching device used for this purpose is described in Patent Document 1 below.
- the cut and clinching device described in the above-mentioned Patent Document 1 determines whether or not the lead wire has been normally inserted into the insertion hole, and whether the lead wire is inserted into the cut and clinching device. It has a function of detecting whether or not the cutting waste is clogged, and stopping the operation of the cut and clinching device when the cutting waste is not properly inserted and when the cutting waste is clogged.
- the present invention has been made to further improve this type of cut and clinching apparatus.
- a pair of fixed claws each provided with a first blade on the tip surface, and (b) movable along each of the tip surfaces of the fixed claws, A pair of movable claws each having a second blade for jointly shearing the lead wire; and (c) a claw set interval for changing the interval between two sets of claw sets, each of which includes the fixed claw and the movable claw. And (d) in each of the two sets of claw sets, by moving the movable claw relative to the fixed claw, the lead wire is sheared between the first blade and the second blade.
- a movable claw driving device that is bent and bent, and (e) each fixed claw is electrically connected to a portion of each of the fixed claw that is away from each movable claw with respect to each of the front end surfaces.
- Each contact member fixed in an insulated state by an insulating layer, and (f) the claw set After the lead wire is inserted between each of the first blade and the second blade in a state where the device is in the set position, the claw setting interval is set before the movable claw driving device moves the movable claw.
- a pre-claw set interval control unit that causes each of the contact members and each of the lead wires to approach each other by causing the changing device to change the interval between the claw sets by a set distance; and (g) each of the contact members and the fixed claw Each of the contact members and the contact members and the second blades across the insulating layer by each lead wire inserted between the first blade and the second blade.
- a cut-and-clinch device including a pair of detection circuits that are closed by electrically connecting the fixed claws to each other is obtained.
- the fixing claw is provided with a lead wire insertion hole into which a lead wire is inserted, and the first blade is formed by a line of intersection of the lead wire insertion hole and the tip surface.
- the movable claw is provided with a guide hole for guiding the lead wire to the lead wire insertion hole, and the second blade is formed at the opening peripheral edge of the guide hole on the fixed claw side.
- the movable claw by the movable claw driving device is used.
- the nail set interval is changed by the control of the nail set interval changing device by the pre-nail set interval control unit.
- FIG. 5 is a partially enlarged view of FIG. 4. It is a figure which expands and shows a part of FIG. It is an expansion perspective view of the claw set vicinity of the said cut and clinching apparatus.
- FIG. 10 is a front sectional view showing a state in which one operation of cut and clinching is performed from the state shown in FIG. 9. It is a front sectional view showing the state where another operation of cut and clinching was performed.
- FIG. 10 is a block diagram which shows the control apparatus of the said cut and clinching apparatus. It is a flowchart which shows the cut and clinching routine of the said control apparatus. It is a figure for demonstrating the necessity of the nail
- This cut-and-clinch device 10 receives a component from a substrate conveyance holding device that conveys a substrate in a horizontal posture and holds the substrate in a predetermined position, a component supply device that supplies components, and a component supply device.
- a component of an electronic circuit component mounting machine including a mounting device for mounting on a substrate held by a substrate transporting and holding device.
- the mounting device is a mounting head having a holding claw that holds the main body part or the lead wire part of the component with a pair of claws as a component holder, or a suction nozzle that sucks and holds the main body part of the component by negative pressure;
- a head moving device that moves the mounting head in directions parallel to the X axis, the Y axis, and the vertical Z axis that are orthogonal to each other in a horizontal plane, and a head rotation device that rotates the mounting head around the vertical axis. It is supposed to be.
- the cut and clinching device is a device for temporarily fixing a component to a substrate by cutting the lead wire of the component inserted into the through hole of the substrate into a predetermined length and bending it along the back surface of the substrate.
- the cut and clinching device 10 is also moved around the vertical axis while being moved in a direction parallel to the X, Y and Z axes by the cut and clinching device moving and rotating device. Since the above devices are all well known, illustration and detailed description are omitted, and the cut and clinching device 10 itself will be described in detail below.
- the cut and clinching device 10 includes a device main body 12, and a linear fixed claw guide 14 is horizontally provided on the device main body 12, and the pair of fixed claw 16 can be moved toward and away from each other by the fixed claw guide 14. It is supported.
- the apparatus main body 12, the fixed claw 16, and the movable claw 50 to be described later are integrally formed by fixing a plurality of members with bolts or the like for convenience of processing and assembly, partial replacement at the time of wear, and the like. However, since it is not directly related to the present invention, it will be described as an integral member.
- the position of the pair of fixed claws 16 is changed by the interval changing device 20, and the interval between the fixed claws 16 can be changed from the minimum state shown in FIG. 1 to the maximum state shown in FIG.
- the interval changing device 20 includes a male screw member 26 having a right screw portion 22 and a left screw portion 24 coaxially, and a male screw member rotation drive device 28.
- the male screw member rotation drive device 28 includes a servo motor 32 as a drive source and a rotation transmission mechanism 36 such as a gear 34.
- the male screw member 26 can be rotated at an arbitrary angle by the control of the servo motor 32.
- the interval changing device 20 further includes nuts 38 that are respectively screwed into the right screw portion 22 and the left screw portion 24 and fixed to the fixing claws 16. A pair of fixed screws is controlled by the servo motor control unit 152. The space
- claw 16 can be adjusted arbitrarily.
- the male screw member 26 and the nut 38 constitute a ball screw mechanism.
- Each of the pair of fixed claws 16 holds a movable claw 50 and a movable claw driving device 52, and is movable together with each fixed claw 16. As shown most clearly in FIG. 3, each movable claw 50 is guided by a linear movable claw guide 54 fixed to each fixed claw 16 and moves in a direction parallel to the moving direction of the fixed claw 16. Is possible.
- the movable claw driving device 52 includes an air cylinder 60 held by each fixed claw 16 as a drive source, and the vertical movement of the air cylinder 60 is caused by the motion conversion mechanism 62 to move the movable claw 50 in the horizontal direction.
- the motion conversion mechanism 62 includes a cam 70 guided by a linear cam guide 68 fixed to each fixed claw 16 in a state of extending in the vertical direction, and the cam 70 has a cam groove inclined with respect to the vertical direction. 72 is formed.
- the cam groove 72 is engaged with a roller 74 as a cam follower rotatably attached to the movable claw 50 around a horizontal rotation axis.
- a lead wire insertion hole 80 extending in the vertical direction is formed in the fixing claw 16, and is shown in FIG. 6 along the intersection line between the lead wire insertion hole 80 and the upper end surface.
- a blade 82 is formed as described above.
- the movable claw 50 generally extends in the vertical direction along the fixed claw 16, but its upper end is bent at a right angle to form a blade forming portion 84, and the lower surface of the blade forming portion 84 is the fixed claw 16. It is made to adjoin to the upper end surface of. As shown most clearly in FIG.
- the blade forming portion 84 is formed with a lead wire guide hole (hereinafter abbreviated as a guide hole) 86, and the lower end portion of the inner peripheral surface thereof and the blade forming portion A blade 88 is formed along the line of intersection with the lower surface of 84.
- the diameter of the guide hole 86 is gradually increased from the end on the side where the blade 88 is formed toward the opposite end, and the inner peripheral surface is a tapered inner peripheral surface.
- the angle formed by the inner peripheral surface of the guide hole 86 and the upper surface of the blade forming portion 84 is rounded by being increased.
- an escape groove 90 is formed on the upper surface of the blade forming portion 84 to allow passage of a lead wire cut to a predetermined length when cut and clinching is performed.
- a contact pipe 94 as a contact member is disposed in the lead wire insertion hole 80.
- the contact pipe 94 is electrically insulated from the fixed claw 16 by an insulating layer 96 at the top and other portions by an insulating tape (not shown).
- the insulating layer 96 includes a cylindrical portion 98 and a flange portion 100, and the cylindrical portion 98 is between the outer peripheral surface of the contact pipe 94 and the inner peripheral surface of the lead wire insertion hole 80.
- the flange portion 100 is interposed between the upper end surface of the contact pipe 94 and the flange portion 102 provided at the opening portion of the lead wire insertion hole 80.
- the inner diameter of the flange portion 100 is slightly larger than the inner diameter of the flange portion 102.
- the flange portion 100 makes contact between the flange portion 102 and the lead wire 110. It is designed not to interfere. This configuration is also effective in preventing the flange portion 100 from being damaged or worn due to contact with the lead wire 110.
- the inner diameter of the contact pipe 94 is also slightly larger than the inner diameter of the flange portion 102 so that the lower end edge of the lead wire 110 does not engage with the upper end edge of the contact pipe 94 when the lead wire 110 is inserted.
- the contact pipe 94 and the fixed claw 16 are electrically insulated. However, as shown in FIGS.
- the contact pipe 94 and the fixed claw 16 are electrically insulated from the fixed claw 16 by the insulating member 120 made of synthetic resin.
- a connection pin 122 provided in a state is brought into contact with the contact pipe 94, and a lead wire 126 is connected to the connection pin 122 by a connector 124.
- the lead wire insertion hole 80 should be referred to as a “hole” in terms of function. Actually, however, as shown in FIG. 8, the contact pipe 94 and the insulating layer 96 are incorporated into the fixing claw 16 for convenience. After the groove 130 is formed on the surface of the fixed claw 16 facing the movable claw 50 and the contact pipe 94, the insulating layer 96, the insulating member 120 and the connection pin 122 are integrally assembled outside, the insulating layer 96 is assembled. However, the contact pipe 94 is received and fixed in the groove 130 while being fitted and positioned in the positioning groove 132 formed in the fixing claw 16 with high accuracy. Therefore, strictly speaking, the lead wire insertion hole is formed by the inner peripheral surface of the contact pipe 94.
- the apparatus main body 12 is provided with a container 142 that accommodates a lead wire piece 140 separated from the lead wire 110 by a cut-and-clinch operation, and a lead wire insertion hole 80 is provided by the guide path 144. (In other words, the contact pipe 94) is connected to the lower end opening.
- the cut and clinching device control unit 150 which is the control unit of the cut and clinching device 10 described above, constitutes a part of the control device 160 shown in FIG.
- the control device 160 controls the entire electronic circuit component mounting machine, and together with the component supply control unit, the substrate transfer holding control unit, and the mounting control unit that control the component supply device, the substrate transfer holding device, and the mounting device, respectively.
- the cut-and-clinch device movement / rotation control unit for controlling the cut-and-clinch device movement / rotation device is provided, but detailed description thereof is omitted.
- the cut and clinching device control unit 150 includes an air cylinder control unit 156 that controls the air cylinder 60 via the switching valve 154, one fixed claw 16 and one movable claw. 50, and two detection circuits 158 for detecting the conduction between the contact pipe 94 and the fixed claw 16 provided corresponding to each of the two claw sets.
- the control device 160 includes a computer 165 including a ROM 161, a RAM 162, a PU 163, and an input / output interface 164, an operation unit that performs an operation for inputting a command to each unit of the electronic circuit component mounting machine, and a display unit that displays information about each unit. And an operation / notification panel 166 including a speaker and an operation / notification control unit 168 which is a control unit thereof.
- a computer 165 including a ROM 161, a RAM 162, a PU 163, and an input / output interface 164, an operation unit that performs an operation for inputting a command to each unit of the electronic circuit component mounting machine, and a display unit that displays information about each unit.
- an operation / notification panel 166 including a speaker and an operation / notification control unit 168 which is a control unit thereof.
- the positioning and spacing change of S1 are executed in parallel with the mounting device receiving and moving the next component to be mounted from the component supply device.
- the parts may be in any form, such as an axial part or a radial part.
- the main body is held by the part holder, and the pair of lead wires 110 extend in parallel and vertically at a set pitch above the substrate 169. And is positioned with respect to the through hole 170 of the substrate 169.
- the center line of the guide hole 86 and the lead wire insertion hole 80 of the claw set which is a set of the pair of fixed claws 16 and the movable claw 50, coincides with the center line of the lead wire 110 having the set pitch.
- S2 is executed, in S2, as shown in FIG. 9, it is waited for the lead wire 110 to be inserted into the through hole 170 and the claw set.
- the lead wire 110 of the component is Whether or not the length is equal to or longer than the set length is determined based on preset lead wire length data. If the determination result is NO, the nail set interval is changed in S4. In other words, as shown in FIG.
- the distance between the two sets of claw sets (the distance between the guide holes 86 of the two sets of claw sets and the center line of the lead wire insertion hole 80) is increased by a set amount.
- inward bending when the protrusions 172 downward from the through-holes 170 of the pair of lead wires 110 are bent toward each other (hereinafter referred to as inward bending), the interval between the two sets of claw sets is set. The amount is narrowed.
- the leading end of the lead wire 110 is the inner peripheral surface of the contact pipe 94 as shown in FIG.
- the intermediate portion contacts the flange portion 102, and the lead wire 110 is prevented from conducting the fixing claw 14 and the contact pipe 94.
- the tip end portion of the lead wire 110 does not move outward, but only comes out from the lead wire insertion hole 80 while maintaining contact with the flange portion 102. .
- the leading end portion of the lead wire 110 tends to be bent inward by the movable claw 50 and the flange portion 102, and the leading end of the lead wire 110 is rather moved away from the inner peripheral surface of the contact pipe 94. No contact with 94.
- the inclination angle of the leading end portion of the lead wire 110 with respect to the vertical line increases, so that it can be moved as shown in FIG.
- the nail 50 performs the cut and clinching operation
- the intermediate portion of the lead wire 110 contacts the inner peripheral surface of the contact pipe 94 before contacting the flange portion 102.
- the leading end portion of the lead wire 110 tends to be bent inward by the movable claw 50 and the contact pipe 94 and eventually comes into contact with both the contact pipe 94 and the flange portion 102.
- both are made conductive, and the fact is stored in the continuity detection memory, which is the lead wire insertion detection memory of the RAM 162, by the PU 163. Thereafter, the tip of the lead wire 110 moves away from the inner peripheral surface of the contact pipe 94, and the lead wire 110 comes out of the lead wire insertion hole 80 while maintaining contact with the flange portion 102.
- the case where the lead wire 110 is shorter than the set length has been described above. However, if the lead wire 110 is longer than the set length, the intermediate portion of the lead wire 110 is flanged even if the cut and clinching operation is performed without widening the gap between the nail sets.
- the tip contacts the inner peripheral surface of the contact pipe 94, and thereafter, the same phenomenon as described above occurs when the interval between the claw sets is widened. Are made conductive by the lead wire 110 and stored in the continuity detection memory of the RAM 162.
- the cut and clinch operation of S5 is executed after the nail set interval change of S4 is performed, and when it is longer than the set length, S4 is bypassed.
- S5 is executed, and in any case, after the cut-and-clinch operation is performed, in S6, the fixing claw 14 and the contact pipe 94 are connected to the lead wire 110 at any time during the execution from S2 to S5. It is determined whether or not the fact has been stored in the continuity detection memory, and if the result of the determination is YES, in S7, the next operation of the mounting machine, such as the mounting operation of the next part, etc.
- the operation-notification panel 166 Specifically, a notification to the effect that "the lead wire 110 was not inserted normally" by voice, and a screen showing the status of the two sets of claw sets in which the normal insertion of the lead wire 110 was not detected. Display is performed.
- This treatment includes, for example, maintenance of the cut and clinching apparatus 10 and change of the cut and clinching routine.
- the change of the cut and clinching routine is determined, for example, by determining whether “the amount of movement of the contact pipe 94 in S3 is allowed to be increased, and thereby the normal insertion of the lead wire 110 is possible”. If it is affirmative, it is considered effective in detecting normal insertion of the lead wire 110, such as instructing that the amount of movement of the contact pipe 94 should be increased by operating the operation / notification panel 166. Treatment.
- the lead wire to the lead wire insertion hole is The first determination unit determines that the lead wire has been normally inserted before the start of the cut and clinching operation in S5, and until the end of the execution of S5. It is also possible to provide a second determination unit that determines that the lead wire is not normally inserted into the lead wire insertion hole when the detection circuit is not closed.
- the nail set interval change in S4 is executed only when the lead wire is shorter than the set length, the advantage of eliminating the waste of changing the nail set interval when unnecessary is possible.
- the inner diameter of the flange portion 102 of the fixing claw 14 is made smaller than the inner diameter of the contact pipe 94, the inner diameter of the contact pipe 94 can be made smaller as shown in FIG. In this way, the contact pipe 94 first moves in the direction indicated by the arrow in FIG.
- the lead wire 110 does not directly connect the contact pipe 94 and the fixed claw 14, but indirectly through the movable claw 50 and other members that conduct the movable claw 50 and the fixed claw 14. To make it happen.
- the claw set is moved in the direction opposite to the direction of movement of the movable claw 50 for the cut and clinching operation, contrary to the case of the previous embodiment. But not essential but desirable.
- the cut and clinching device capable of both the outer bending and the inner bending of the lead wire 110, but it is also possible that only one of the outer bending and the inner bending is possible.
- the fixed claw and the movable claw do not need to have the lead wire insertion hole 80 and the guide hole 86 surrounding the entire circumference of the lead wire 110, and the first blade capable of shearing the lead wire 110 together. Any device provided with a second blade may be used.
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Abstract
Description
本発明の望ましい態様においては、前記固定爪が、リード線が挿入されるリード線挿入孔を備えたものとされ、そのリード線挿入孔と前記先端面との交線により前記第1刃が形成され、また、可動爪が、リード線をリード線挿通孔に案内する案内穴を備えたものとされ、その案内穴の前記固定爪側の開口周縁に前記第2刃が形成される。
そして、固定爪がリード線挿入孔を備え、可動爪が案内穴を備えた望ましい態様のカットアンドクリンチ装置によれば、リード線の外曲げ時においても内曲げ時においても、上記本発明の効果が得られる。
上記のように、接点パイプ94と固定爪16とは電気的に絶縁されているが、図4,5に示すように、合成樹脂製の絶縁部材120により固定爪16と電気的に絶縁された状態で設けられた接続ピン122が接点パイプ94に接触させられており、この接続ピン122にコネクタ124によりリード線126が接続されている。
カットアンドクリンチ装置制御部150は、前述のサーボモータ制御部152の他に、エアシリンダ60を切換バルブ154を介して制御するエアシリンダ制御部156と、それぞれ1つずつの固定爪16と可動爪50とから成る2セットの爪セットの各々に対応して設けられた前記接点パイプ94と固定爪16との導通を検出する2つの検出回路158とを含んでいる。
以上はリード線110が設定長さより短い場合について説明したが、設定長さより長い場合は、爪セットの間隔が広げられることなくカットアンドクリンチ動作が行われても、リード線110の中間部がフランジ部102に接触する前に先端が接点パイプ94の内周面に接触し、それ以後は爪セットの間隔が広げられた場合について説明した上記と同じ現象が生じて、固定爪14と接点パイプ94とがリード線110により導通させられ、RAM162の導通検出メモリに記憶される。
また、固定爪14のフランジ部102の内径が接点パイプ94の内径より小さくされていたが、図16に示すように、接点パイプ94の内径の方が小さい状態とすることも可能である。このようにすれば、カットアンドクリンチの実行前の爪セット間隔の変更に伴い、先ず接点パイプ94が図16に矢印で示す向きに移動してリード線110の突出部172に接触し、その後更に同方向に移動することにより、突出部172を撓ませて接点パイプ94と可動爪50との両方がリード線110に接触する瞬間、すなわち接点パイプ94と固定爪14とのリード線110による導通が検出される瞬間が生じるのである。ただし、本実施例においては、リード線110のリード線挿入孔80への挿入に際して、接点パイプ94の上端との当接により挿入が妨げられることを回避するために、図16に示すように、接点パイプ94の内周面の上端部に比較的緩やかなテーパ付して、接点パイプ94の上端面がフランジ102により完全に覆われるようにすることが必要である。また、リード線110は接点パイプ94と固定爪14とを直接導通させるのではなく、可動爪50ならびに、可動爪50と固定爪14とを導通させている他の部材を介して間接的に導通させるのである。さらに付言すれば、本実施例においては、爪セットが、先の実施例の場合とは逆に、カットアンドクリンチ動作のための可動爪50の移動の向きとは逆の向きに移動させられることが、不可欠ではないが、望ましい。
Claims (7)
- 回路基板の貫通穴に挿通され、その回路基板の裏面側へ突出させられた電子回路部品のリード線の突出部を、設定長さに切断するとともに回路基板の裏面に沿って折り曲げるリード線カットアンドクリンチ装置であって、
それぞれ先端面に第1刃を備えた一対の固定爪と、
それら固定爪の前記先端面の各々に沿って移動可能であり、前記第1刃の各々と共同してリード線をせん断する第2刃をそれぞれ備えた一対の可動爪と、
前記固定爪と前記可動爪とを1セットとする2セットの爪セットの間隔を変更する爪セット間隔変更装置と、
前記2セットの爪セットの各々において、前記可動爪を前記固定爪に対して相対的に移動させることにより、前記第1刃と前記第2刃とにリード線をせん断させるとともに曲げさせる可動爪駆動装置と、
前記固定爪の各々の、前記先端面の各々に対して前記可動爪の各々とは反対側へ離れた部分に、それら各固定爪とは電気絶縁層により絶縁された状態で固定された各接点部材と、
前記爪セットの位置が設定位置にある状態で、リード線が前記第1刃と前記第2刃との各々の間に挿入された後、前記可動爪駆動装置による前記可動爪の移動前に、前記爪セット間隔変更装置に前記爪セットの間隔を設定距離変更させることにより、前記接点部材の各々とリード線の各々とを接近させる事前爪セット間隔制御部と、
前記接点部材の各々と前記固定爪の各々との間に形成され、常には開状態にあるが、前記第1刃と前記第2刃との各間に挿入された各リード線により、前記絶縁層を跨いで前記接点部材と前記固定爪とがそれぞれ電気的に接続されることによって閉状態となる一対の検出回路と
を含むリード線カットアンドクリンチ装置。 - 前記事前爪セット間隔制御部が、電子回路部品のリード線が設定長さより短い場合には前記爪セット間隔変更装置に前記爪セットの間隔変更を行わせ、リード線が設定長さ以上である場合には前記爪セットの間隔変更を行わせないものである請求項1に記載のリード線カットアンドクリンチ装置。
- 前記固定爪が、リード線が挿入されるリード線挿入孔を備え、そのリード線挿入孔と前記先端面との交線により前記第1刃が形成され、前記可動爪が、リード線を前記リード線挿通孔に案内する案内穴を備え、その案内穴の前記固定爪側の開口周縁に前記第2刃が形成された請求項1または2に記載のリード線カットアンドクリンチ装置。
- 前記固定爪の前記リード線挿入孔の前記先端面に隣接した部分に内向きの第1フランジ部が形成され、前記電気絶縁層が、(a)前記リード線挿入孔の内周面と覆う円筒部と、(b)その円筒部の前記第1フランジ部に隣接する部分に形成されて第1フランジより内径が大きい第2フランジとを備え、前記接点部材が、前記電気絶縁層の前記円筒部の内周面を覆い、内径が前記第1フランジより大きい円筒状の接点パイプである請求項3に記載のリード線カットアンドクリンチ装置。
- 前記固定爪の前記リード線挿入孔の前記先端面に隣接した部分に内向きの第1フランジ部が形成され、前記電気絶縁層が、(a)前記リード線挿入孔の内周面と覆う円筒部と、(b)その円筒部の前記第1フランジ部に隣接する部分に形成されて第1フランジより内径が大きい第2フランジとを備え、前記接点部材が、概して円筒状を成し、前記電気絶縁層の前記円筒部の内周面を覆い、内径が前記第1フランジの内径より小さいが前記第2フランジに近づくにつれて内径が漸増し、最終的には内径が前記第1フランジの内径より大きくなる接点パイプである請求項3に記載のリード線カットアンドクリンチ装置。
- さらに、前記固定爪の前記リード線挿入孔へのリード線の挿入開始から前記事前爪セット間隔制御部の制御による前記爪セットの間隔変更終了までの間に前記検出回路が前記閉状態となった場合に、前記リード線挿入孔へのリード線の挿入が正常に行われたと判定する第1判定部を含む請求項3ないし5のいずれかに記載のリード線カットアンドクリンチ装置。
- さらに、前記固定爪の前記リード線挿入孔へのリード線の挿入開始から前記可動爪駆動装置による前記可動爪の移動終了までの間に前記検出回路が前記閉状態とならなかった場合に、前記リード線挿入孔へのリード線の挿入が正常に行われなかったと判定する第2判定部を含む請求項3ないし6のいずれかに記載のリード線カットアンドクリンチ装置。
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