JP2023060222A - Cutting/bending device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately attach a lead component to a board.

SOLUTION: In a cut-and-clinch device, the lead of a lead component is bent in one of three states of an inwardly bent state, an outwardly bent state, and an N-bent state. The inwardly bent state is a state in which the pair of leads is bent inward by bringing the pair of movable portions 122 closer together. The outward bending state is a state in which the pair of leads is bent outward by separating the pair of movable portions. In the N bent state, a pair of slide bodies 112 is moved closer together, a pair of movable portions is moved apart, and then the pair of slide bodies is rotated around the midpoint 210, thereby forming a pair of leads into an N-shape in a bent state. As a result, the leads can be bent in various states, and the lead component can be appropriately mounted on a board.

SELECTED DRAWING: Figure 15

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a cutting/bending device for cutting and bending leads when mounting a lead component on a substrate, and a cutting device for cutting leads.

When a lead component is attached to a substrate, leads are inserted into through-holes formed in the substrate, and the leads are cut and bent, as described in the following patent documents.

JP-A-4-320400

According to the technique described in the above patent document, it is possible to mount the lead component on the board appropriately to some extent. However, by appropriately cutting the leads or by appropriately cutting and bending the leads, it is possible to more appropriately mount the lead component on the substrate. The present invention has been made in view of such circumstances, and an object of the present invention is to appropriately mount a lead component on a substrate.

In order to solve the above problems, a cutting/bending device according to the present invention is a cutting/bending device that cuts and then bends a pair of leads of a lead component, wherein the cutting/bending device comprises a pair of lead components. after cutting the leads of the lead component, a first operation control unit for bending the pair of leads in the first direction, which is the direction in which the pair of leads are arranged, in a direction to bring the pair of leads closer to each other; a second operation control unit for bending the pair of leads in the first direction in a direction to separate the pair of leads, and after cutting the pair of leads of the lead component, the pair of leads are separated in a direction different from the first direction. It is characterized by comprising a control device having a third actuation control section for bending in a direction of bending.

In order to solve the above problems, the cutting device according to the present invention includes (A) a first portion having a first through hole, and (B) a second through hole overlapping the first through hole. a pair of main body portions each having a second portion formed to slide with respect to the first portion; and a control device for cutting a pair of leads of a lead component, wherein the control device cuts the leads into the first through-hole and the second through-hole that are superimposed on each other. In a state in which the pair of main body portions are moved in one of the direction of approach and the direction of separation, the pair of second portions are slid in the direction opposite to the one direction to form the pair of main body portions. is cut off.

In the cutting/bending device according to the present invention, a pair of leads are bent inward, a pair of leads are bent outward, and a pair of leads are bent in an N-shape. It is possible to bend the lead in either of the following states. As a result, the leads can be bent in various states, and the lead component can be appropriately mounted on the board.

Further, in the cutting device according to the present invention, the leads are inserted into the first through hole and the second through hole of the main body, and the direction in which the pair of main bodies approaches and the direction in which they separate are provided. is moved in one direction. Then, the pair of second parts are slid in the other of the approaching direction and the separating direction. As a result, the leads that are curved due to the movement of the main body portion are restored to a straight shape by sliding the second portion. As described above, according to the cutting apparatus of the present invention, it is possible to straighten the cut leads and appropriately mount the lead components on the substrate.

It is a perspective view showing a component mounter. It is a perspective view showing a component mounting device. It is a perspective view showing a cut and clinch device. It is a perspective view showing a cut and clinch unit. It is a sectional view showing a slide body. It is an enlarged view which shows a slide body. It is a block diagram which shows a control apparatus. FIG. 4 is a cross-sectional view showing the cut-and-clinch unit just before the lead of the lead component is cut; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an inwardly bent state; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an outwardly bent state; FIG. 10 is a cross-sectional view showing the cut and clinch unit after the leads of the lead component have been bent; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4 is a plan view showing the slide body as viewed from above; FIG. 4B is a schematic diagram showing a lead bent in an N-bend condition; FIG. 10 is a cross-sectional view showing the cut and clinch unit after the leads of the lead component have been bent; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an N-bend condition;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

<Configuration of component mounter>
FIG. 1 shows a component mounter 10. As shown in FIG. The component mounter 10 is a device for mounting components on the circuit board 12 . The component mounter 10 includes an apparatus main body 20, a substrate conveying/holding device 22, a component mounting device 24, a mark camera 26, a parts camera 28, a component supply device 30, a bulk component supply device 32, and a cut and clinch device (see FIG. 3). 34 and a control device (see FIG. 7) 36 . The circuit board 12 includes a circuit board, a three-dimensional structure base material, and the like, and the circuit board includes a printed wiring board, a printed circuit board, and the like.

The device body 20 is composed of a frame portion 40 and a beam portion 42 mounted on the frame portion 40 . The substrate conveying/holding device 22 is arranged in the center of the frame portion 40 in the front-rear direction, and has a conveying device 50 and a clamping device 52 . The transport device 50 is a device that transports the circuit board 12 , and the clamp device 52 is a device that holds the circuit board 12 . Thereby, the substrate conveying/holding device 22 conveys the circuit substrate 12 and also holds the circuit substrate 12 fixedly at a predetermined position. In the following description, the direction in which the circuit board 12 is conveyed is called the X direction, the horizontal direction perpendicular to that direction is called the Y direction, and the vertical direction is called the Z direction. That is, the width direction of the mounter 10 is the X direction, and the front-rear direction is the Y direction.

The component mounting device 24 is arranged on the beam portion 42 and has two working heads 60 and 62 and a working head moving device 64 . As shown in FIG. 2, suction nozzles 66 are provided on the lower end surfaces of the working heads 60 and 62, and the suction nozzles 66 suck and hold the components. The work head moving device 64 also has an X-direction moving device 68 , a Y-direction moving device 70 and a Z-direction moving device 72 . The two working heads 60 and 62 are integrally moved to arbitrary positions on the frame portion 40 by the X-direction moving device 68 and the Y-direction moving device 70 . The working heads 60, 62 are detachably attached to sliders 74, 76, and the Z-direction moving device 72 moves the sliders 74, 76 individually in the vertical direction. That is, the working heads 60 and 62 are individually moved vertically by the Z-direction moving device 72 .

The mark camera 26 faces downward and is mounted on the slider 74 and is moved together with the working head 60 in the X, Y and Z directions. Thereby, the mark camera 26 images an arbitrary position on the frame section 40 . As shown in FIG. 1, the parts camera 28 is arranged facing upward between the substrate conveying/holding device 22 and the parts supplying device 30 on the frame portion 40 . Thereby, the parts camera 28 images the parts gripped by the suction nozzles 66 of the working heads 60 and 62 .

The component supply device 30 is arranged at one end of the frame portion 40 in the front-rear direction. The component supply device 30 has a tray type component supply device 78 and a feeder type component supply device (see FIG. 7) 80 . The tray-type component supply device 78 is a device that supplies components placed on a tray. The feeder-type component supply device 80 is a device that supplies components using a tape feeder or stick feeder (not shown).

The bulk part supply device 32 is arranged at the other end of the frame portion 40 in the front-rear direction. The discrete component supply device 32 is a device that aligns a plurality of scattered components and supplies the components in an aligned state. In other words, it is a device that aligns a plurality of parts in arbitrary postures in a predetermined posture and supplies the components in the predetermined posture.

Components supplied by the component supply device 30 and the bulk component supply device 32 include electronic circuit components, solar cell components, power module components, and the like. Electronic circuit components include components with leads and components without leads.

The cut and clinch device 34 is arranged below the transport device 50 and has a cut and clinch unit 100 and a unit moving device 102 as shown in FIG. The cut and clinch unit 100 includes a unit body 110, a pair of slide bodies 112, and a pitch change mechanism 114, as shown in FIG. A slide rail 116 is arranged at the upper end of the unit main body 110 so as to extend in the X direction. A pair of slide bodies 112 are slidably supported by the slide rails 116 . As a result, the pair of slide bodies 112 approaches and separates in the X direction. In addition, the pitch changing mechanism 114 has an electromagnetic motor 118, and the operation of the electromagnetic motor 118 controlsably changes the distance between the pair of slide bodies 112. As shown in FIG.

5, each of the pair of slide bodies 112 includes a fixed portion 120, a movable portion 122, and a slide device 124, and is slidably held by the slide rails 116 at the fixed portion 120. . Two slide rails 126 are fixed to the back side of the fixed portion 120 so as to extend in the X direction, and the movable portion 122 is slidably held by these two slide rails 126 . Thereby, the movable part 122 slides in the X direction with respect to the fixed part 120 . The slide device 124 also has an electromagnetic motor (see FIG. 7) 128, and the operation of the electromagnetic motor 128 causes the movable portion 122 to slide controllably.

In addition, the upper end portion of the fixing portion 120 is tapered, and a first insertion hole 130 is formed so as to penetrate the upper end portion in the vertical direction. The upper end of the first insertion hole 130 opens to the upper end surface of the fixing portion 120 , and the edge of the opening to the upper end surface serves as a fixed blade (see FIG. 8) 131 . In addition, the first insertion hole 130 has an opening on the side surface of the fixed part 120 at its lower end, and a disposal box 132 is arranged below the opening to the side surface.

As shown in FIG. 6, the upper end portion of the movable portion 122 is also tapered, and the upper end portion is formed with a bent portion 133 that is bent into an L-shape. The bent portion 133 extends above the upper end surface of the fixed portion 120, and the bent portion 133 and the upper end of the fixed portion 120 face each other with a slight clearance therebetween. Also, the first insertion hole 130 opening in the upper end surface of the fixing portion 120 is covered with the bent portion 133 , but the bent portion 133 has a second insertion hole 136 so as to face the first insertion hole 130 . is formed.

In addition, the tip of the bent portion 133 extends to the middle of the upper end surface of the fixed portion 120, and a part of the upper end surface of the fixed portion 120 is exposed. A projecting portion 134 extending upward from the bent portion 133 is formed on an exposed part of the upper end face. That is, a protrusion 134 is formed on the upper end surface of the fixed portion 120 so as to face the tip of the bent portion 133 .

Further, the second insertion hole 136 of the bent portion 133 is a through hole that penetrates the bent portion 133 in the vertical direction. ing. On the other hand, the inner peripheral surface of the first insertion hole 130 near the opening to the upper end surface of the fixing portion 120 is not tapered, and the inner diameter of the first insertion hole 130 near the opening is generally uniform. A movable blade (see FIG. 8) 138 is provided at the opening edge of the second insertion hole 136 to the lower end surface of the bent portion 133 .

A first guide groove 140 is formed in the upper end surface of the bent portion 133 so as to extend in the X direction, that is, the sliding direction of the movable portion 122 . The first guide groove 140 is formed to straddle the opening of the second insertion hole 136, and the first guide groove 140 and the second insertion hole 136 are connected. Also, the first guide groove 140 is open on both side surfaces of the bent portion 133 . The inner side surface of the first guide groove 140, that is, the side surface on the side facing the pair of slide bodies 112 is referred to as a first inner guide groove 140a. Of these, the side opening on the outer side, that is, the side on the side where the pair of slide bodies 112 do not face each other may be referred to as the first outer guide groove 140b. Furthermore, a second guide groove 142 is formed on the upper surface of the bent portion 133 so as to extend toward the side opposite to the distal end of the bent portion 133 , that is, toward the proximal end of the bent portion 133 . One end of the second guide groove 142 is connected to the second insertion hole 136 , and the other end opens to the side surface of the bent portion 133 on the proximal end side.

Also, the pair of slide bodies 112 are arranged point-symmetrically. That is, one of the pair of slide bodies 112 is arranged with the other rotated 180 degrees around the vertical line. Therefore, the pair of slide bodies 112 are illustrated as shown in FIG. 15 when viewed from above. Specifically, the second guide groove 142 on one side of the pair of slide bodies 112 and the second guide groove 142 on the other side of the pair of slide bodies 112 extend in mutually different directions. A second guide groove 142 is formed on the opposite side of the second insertion hole 136 .

3, the unit moving device 102 has an X-direction moving device 150, a Y-direction moving device 152, a Z-direction moving device 154, and a rotation device 156. As shown in FIG. The X-direction moving device 150 includes slide rails 160 and an X-slider 162 . The slide rail 160 is arranged to extend in the X direction, and the X slider 162 is slidably held on the slide rail 160 . The X slider 162 is moved in the X direction by being driven by an electromagnetic motor (see FIG. 7) 164 . Y-direction moving device 152 includes a slide rail 166 and a Y-slider 168 . A slide rail 166 is arranged on the X slider 162 so as to extend in the Y direction, and a Y slider 168 is slidably held on the slide rail 166 . The Y slider 168 is moved in the Y direction by being driven by an electromagnetic motor (see FIG. 7) 170 . The Z-direction movement device 154 includes slide rails 172 and Z sliders 174 . The slide rail 172 is arranged on the Y slider 168 so as to extend in the Z direction, and the Z slider 174 is slidably held on the slide rail 172 . The Z slider 174 is moved in the Z direction by driving an electromagnetic motor (see FIG. 7) 176 .

The rotation device 156 also has a generally disk-shaped rotary table 178 . The rotary table 178 is supported by the Z slider 174 so as to be rotatable around its axis, and is rotated by being driven by an electromagnetic motor (see FIG. 7) 180 . A cut and clinch unit 100 is arranged on the rotary table 178 . With such a structure, the cut and clinch unit 100 can be moved to any position by the X-direction moving device 150, Y-direction moving device 152, and Z-direction moving device 154, and can be rotated at any angle by the rotating device 156. do. Note that the axis of the rotary table 178 and the midpoint of the straight line connecting the pair of slide bodies 112 coincide. Therefore, when the cut-and-clinch unit 100 is rotated by the rotating device 156, the pair of slide bodies 112 rotate about the midpoint of the straight line connecting the pair of slide bodies 112. FIG. Thereby, the second insertion hole 136 of the cut-and-clinch unit 100 can be positioned at an arbitrary position below the circuit board 12 held by the clamping device 52 .

The control device 36 includes a controller 190, a plurality of drive circuits 192, and an image processing device 196, as shown in FIG. A plurality of drive circuits 192 include the conveying device 50, the clamp device 52, the working heads 60 and 62, the working head moving device 64, the tray-type component supply device 78, the feeder-type component supply device 80, the bulk component supply device 32, and the electromagnetic motor. 118, 128, 164, 170, 176, 180. The controller 190 includes a CPU, ROM, RAM, etc., is mainly a computer, and is connected to a plurality of drive circuits 192 . Accordingly, the controller 190 controls the operations of the substrate conveying/holding device 22, the component mounting device 24, and the like. The controller 190 is also connected to an image processing device 196 . The image processing device 196 processes the image data obtained by the mark camera 26 and the parts camera 28, and the controller 190 obtains various information from the image data.

<Operation of mounter>
In the component mounter 10, the operation of mounting components is performed on the circuit board 12 held by the board conveying/holding device 22 by the above-described configuration. Various components can be mounted on the circuit board 12 by the component mounter 10 . The case of mounting will be described below.

Specifically, the circuit board 12 is transported to a working position, where it is held fixedly by a clamping device 52 . Next, the mark camera 26 moves above the circuit board 12 and images the circuit board 12 . Thereby, information about the holding position of the circuit board 12 and the like can be obtained. Further, the component supply device 30 or bulk component supply device 32 supplies lead components at a predetermined supply position. Then, one of the working heads 60 and 62 moves above the component supply position and holds the component with the suction nozzle 66 . 8, the lead component 200 is composed of a component fixing portion 202 and two leads 204 extending from the bottom surface of the component fixing portion 202. As shown in FIG. The lead component 200 is sucked and held at the component fixing portion 202 by the suction nozzle 66 .

Subsequently, the working heads 60 and 62 holding the lead component 200 move above the parts camera 28 , and the lead component 200 held by the suction nozzle 66 is imaged by the parts camera 28 . As a result, information regarding the holding position of the component and the like can be obtained. Subsequently, the working heads 60 and 62 holding the lead component 200 are moved above the circuit board 12 to correct errors in the holding position of the circuit board 12 and components. Two leads 204 of lead component 200 sucked and held by suction nozzle 66 are inserted into two through holes 208 formed in circuit board 12 . At this time, the cut and clinch unit 100 is moved below the circuit board 12 . In the cut-and-clinch unit 100, the coordinates of the second insertion hole 136 of the movable part 122 in the XY direction and the coordinates of the through hole 208 of the circuit board 12 in the XY direction match. It has been moved so that the top surface is slightly below the bottom surface of circuit board 12 .

Specifically, in the cut and clinch unit 100, the distance between the second insertion holes 136 of the movable parts 122 of the pair of slide bodies 112 is the distance between the two through holes 208 formed in the circuit board 12. The distance between the pair of slide bodies 112 is adjusted by the pitch changing mechanism 114 so as to be the same as the distance. By the operation of the unit moving device 102, the cut and clinch unit 100 is moved in the XYZ directions and rotated. As a result, the XY coordinates of the second insertion hole 136 of the movable portion 122 and the XY coordinates of the through hole 208 of the circuit board 12 match. In addition, as described above, the protrusion 134 extending upward from the bent portion 133 of the movable portion 122 is formed on the upper end surface of the fixed portion 120 . The distance from the lower surface is ensured by the protrusion 134 . As a result, the upper surface of the movable portion 122 is positioned slightly below the lower surface of the circuit board 12 .

When the lead 204 of the lead component 200 sucked and held by the suction nozzle 66 is inserted into the through hole 208 of the circuit board 12, the tip of the lead 204 is cut and clinched as shown in FIG. It is inserted into the first insertion hole 130 of the fixed part 120 via the second insertion hole 136 of the movable part 122 of the unit 100 . At this time, since the inner peripheral surface of the second insertion hole 136 positioned below the through-hole 208 is tapered, even if the lead 204 is bent to some extent, the tip of the lead 204 will not be bent. 2 insertion hole 136 can be properly secured.

Next, when the tip of the lead 204 is inserted into the first insertion hole 130 via the second insertion hole 136, the pair of movable parts 122 slide in the approaching direction due to the operation of the slide device 124. . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. Then, the tip portion separated by cutting the lead 204 falls inside the first insertion hole 130 and is disposed of in the disposal box 132 .

Also, the pair of movable parts 122 are slid in the direction of approaching even after the lead 204 is cut. Therefore, the new distal end of the lead 204 resulting from the cutting bends along the tapered surface of the inner circumference of the second insertion hole 136 as the movable portion 122 slides, and furthermore, as the movable portion 122 slides, , the tip of the lead 204 is bent along the first outer guide groove 140b. At this time, the pair of leads 204 are bent toward each other along the direction in which the pair of leads 204 are arranged. As a result, the lead component 200 is attached to the circuit board 12 while the lead 204 is prevented from coming out of the through hole 208 .

In this manner, in the component mounter 10, the pair of leads 204 are cut by the cut and clinch device 34, and the lead component 200 is attached to the circuit board 12 in a state in which the pair of leads 204 are bent inward (hereinafter referred to as an "inwardly bent state"). be worn. However, there are cases where the lead component 200 cannot be properly attached to the circuit board 12 in the inwardly bent state. Specifically, for example, when the distance between the pair of leads 204 is short, that is, when the distance between the pair of through holes 208 formed in the circuit board 12 is short, the inwardly bent state A pair of leads 204 may touch and short as shown in FIG. Therefore, when the distance between the pair of leads 204 is short, the lead component 200 is attached to the circuit board 12 with the pair of leads 204 bent outward (hereinafter referred to as "outward bending state"). be done.

Specifically, as shown in FIG. 8, the leads 204 are inserted into the first insertion hole 130 and the second insertion hole 130 through the through holes 208, as shown in FIG. 2 is inserted into the insertion hole 136 . Next, the pair of movable parts 122 are slid away from each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. After the lead 204 is cut, the pair of movable parts 122 are slid further apart. Therefore, the new distal end of the lead 204 resulting from the cutting bends along the tapered surface of the inner circumference of the second insertion hole 136 as the movable portion 122 slides, and furthermore, as the movable portion 122 slides, , the tip of the lead 204 is bent along the first inner guide groove 140a. At this time, the pair of leads 204 are bent in a direction away from each other along the direction in which the pair of leads 204 are arranged. As a result, the lead component 200 is attached to the circuit board 12 in an outwardly bent state.

However, there are cases where the lead component 200 cannot be properly attached to the circuit board 12 even in the outwardly bent state. Specifically, for example, when the mounting positions of two lead components 200 are close to each other in the direction in which the leads 204 are arranged, as shown in FIG. , and a through hole 208b for mounting another lead component 200 are adjacent to each other in the direction in which the leads 204 are arranged. Therefore, the leads 204a of the lead component 200 attached to the through hole 208a in an outwardly bent state and the leads 204b of the lead component 200 attached to the through hole 208b in an outwardly bent state may come into contact with each other and cause a short circuit. Therefore, in such a case, the lead component 200 is attached to the circuit board 12 with the pair of leads 204 bent in an N-shape (hereinafter referred to as "N-bent state").

Specifically, as shown in FIG. 8, the leads 204 are inserted through the through-holes 208 in the same way as when the lead component 200 is attached to the circuit board 12 in an inwardly bent state or an outwardly bent state. It is inserted into the first insertion hole 130 and the second insertion hole 136 . Next, as shown in FIG. 13, the pair of slide bodies 112 are moved such that the distance between the pair of slide bodies 112 is increased. That is, the pair of slide bodies 112 are slid away from each other. This bends slightly so that the pair of leads 204 spread apart.

The slide amount of the slide body 112 depends on the edge of the fixed blade 131 that cuts the lead 204 when the movable part 122 slides inward and the slide body 112 on the outer peripheral surface of the base end of the lead 204. It is set so that the closest point matches in the vertical direction. That is, the slide body 112 is slid so that the proximal end of the lead 204 and the first insertion hole 130 are slightly overlapped in the vertical direction.

When the pair of slide bodies 112 are slid away from each other, the pair of movable portions 122 are slid toward each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. At the timing when the lead 204 is cut, the sliding of the movable portion 122 is stopped. At this time, the through hole 208 and the second insertion hole 136 of the movable portion 122 are generally aligned in the vertical direction. This is because the slide amount of the slide body 112 is set as described above. Therefore, the lead 204 that has been curved due to the sliding of the slide body 112 is restored to a substantially straight line due to the sliding of the movable portion 122 .

Next, the cut-and-clinch unit 100 rotates by the operation of the rotation device 156 . At this time, the pair of slide bodies 112 rotate about the midpoint 210 of the straight line connecting the pair of slide bodies 112, as shown in FIG. It should be noted that the pair of slide bodies 112 rotates so that the protrusions 134 are in the advancing direction. That is, the pair of slide bodies 112 rotate so that the protrusion 134 is positioned forward and the second guide groove 142 is positioned rearward. This makes it possible to prevent interference between the leads 204 and the protrusions 134 when the slide body 112 rotates.

At this time, the lead 204 inserted into the second insertion hole 136 is bent along the inner peripheral tapered surface of the second insertion hole 136 as the slide body 112 rotates. Further, the tip of the lead 204 is bent along the second guide groove 142 by further rotating the slide body 112 . The inner wall surface of the second guide groove 142 is oriented perpendicularly to the first guide groove 140 on one side and along the direction of rotation of the slide body 112 on the other side. Therefore, the lead 204 is bent along the other inner wall surface of the second guide groove 142, and as shown in FIG. , are bent in the direction of separation. That is, a pair of leads 204 are bent in a generally N-shape. As a result, the lead component 200 is attached to the circuit board 12 in the N-bent state.

Moreover, it is possible to attach the lead component 200 to the circuit board 12 in the N-bent state by a method different from the above method. Specifically, as shown in FIG. 8, the leads 204 are inserted through the through-holes 208 in the same way as when the lead component 200 is attached to the circuit board 12 in an inwardly bent state or an outwardly bent state. It is inserted into the first insertion hole 130 and the second insertion hole 136 . Next, as shown in FIG. 17, the pair of slide bodies 112 are moved so that the distance between the pair of slide bodies 112 is shortened. That is, the pair of slide bodies 112 are slid in the approaching direction. This causes the pair of leads 204 to bend slightly to close. Note that the amount of sliding of the slide body 112 is set by a method similar to the method described above.

When the pair of slide bodies 112 are slid toward each other, the pair of movable portions 122 are slid away from each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. At the timing when the lead 204 is cut, the sliding of the movable portion 122 is stopped. At this time, the through hole 208 and the second insertion hole 136 of the movable portion 122 are generally aligned in the vertical direction. Therefore, the lead 204 that has been curved due to the sliding of the slide body 112 is restored to a substantially straight line due to the sliding of the movable portion 122 .

Next, the cut and clinch unit 100 is rotated by the operation of the rotation device 156, so that the pair of slide bodies 112 are positioned at the midpoint 210 of the straight line connecting the pair of slide bodies 112, as shown in FIG. rotate around. It should be noted that the pair of slide bodies 112 rotates so that the protrusions 134 are in the advancing direction. The lead 204 inserted into the second insertion hole 136 bends along the tapered surface on the inner periphery of the second insertion hole 136 as the slide body 112 rotates. Further, the tip of the lead 204 is bent along the second guide groove 142 by further rotating the slide body 112 . As a result, as shown in FIG. 16, the pair of leads 204 are generally bent in an N-shape, and the lead component 200 is attached to the circuit board 12 in the N-bent state.

In this way, by sliding the pair of slide bodies 112 in the direction of separation and sliding the pair of movable parts 122 in the direction of approach, the lead 204 is cut, and then the cut and clinch unit 100 rotates. to bring the leads 204 into an N-bent state (hereinafter sometimes referred to as a “first N-bending method”), and a pair of sliding bodies 112 are slid in the approaching direction to move the pair of movable parts 122 apart. A method of cutting the lead 204 by sliding it in a direction to bend the lead 204, and then making the lead 204 into an N-bent state by rotating the cut and clinch unit 100 (hereinafter sometimes referred to as a “second N-bending method”). It is possible to attach the lead component 200 to the circuit board 12 in an N-bent state according to any one of the above methods.

When the distance between the pair of leads 204 is short, it is preferable to adopt the first N bending method, and when the distance between the pair of leads 204 is long, it is preferable to adopt the second N bending method. preferable.

Moreover, even in the N-bent state, the lead component 200 may not be properly attached to the circuit board 12 in some cases. Specifically, for example, when the mounting positions of the two lead components 200 are close in a direction different from the direction in which the leads 204 are arranged, as shown in FIG. A hole 208a and a through hole 208b for mounting another lead component 200 are adjacent to each other in a direction different from the direction in which the leads 204 are arranged. Therefore, the leads 204a of the lead component 200 attached to the through hole 208a in an outwardly bent state and the leads 204b of the lead component 200 attached to the through hole 208b in an outwardly bent state may come into contact with each other and cause a short circuit. Therefore, in such a case, the lead component 200 is attached to the circuit board 12 in an outwardly bent state or an inwardly bent state.

Thus, the cut-and-clinch device 34 can mount the lead component 200 on the circuit board 12 in any one of the inwardly bent state, the outwardly bent state, and the N-bent state. As a result, it is possible to attach the lead components 200 to the circuit board 12 in various ways. It is possible to appropriately mount the lead component 200 on the circuit board 12 without causing a short circuit or the like.

The controller 190 of the control device 36 has a first operation control section 250, a second operation control section 252, and a third operation control section 254, as shown in FIG. The first operation control section 250 is a functional section for attaching the lead component 200 to the circuit board 12 in an inwardly bent state. The second operation control section 252 is a functional section for attaching the lead component 200 to the circuit board 12 in an outwardly bent state. The third operation control section 254 is a functional section for attaching the lead component 200 to the circuit board 12 in the N-bent state.

Also, the cut and clinch device 34 is an example of a cutting/bending device and a cutting device. The control device 36 is an example of a control device. The unit main body 110 is an example of a holding portion. The slide body 112 is an example of the main body. The fixed part 120 is an example of the first part. The movable portion 122 is an example of a movable portion. The first insertion hole 130 is an example of a first through hole. Projection 134 is an example of a projection. The second insertion hole 136 is an example of a second through hole. The first guide groove 140 is an example of a first groove. The second guide groove 142 is an example of a second groove. The rotation device 156 is an example of a rotation mechanism. Lead component 200 is an example of a lead component. Lead 204 is an example of a lead. The first operation control section 250 is an example of a first operation control section. The second operation control section 252 is an example of a second operation control section. The third operation control section 254 is an example of a third operation control section.

It should be noted that the present invention is not limited to the above embodiments, and can be implemented in various modes with various modifications and improvements based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the present invention is applied to the cut and clinch device 34 that cuts and bends the lead 204, but the present invention is applied to the lead cutting device that cuts the lead 204. It is possible to That is, when the lead component 200 is attached to the circuit board 12 in the N-bent state, after the pair of slide bodies 112 are slid in one of the directions of separating and approaching, the pair of movable parts 122 are moved. The present invention can be applied to a device that cuts the lead 204 by sliding it in the other of the separation direction and the approaching direction. As a result, the cut leads 204 can be straightened.

In the above-described embodiment, the suction nozzle 66 is used as a holder for holding the lead component 200 . A body chuck or the like can be employed.

In the above embodiment, as shown in FIG. 15, the cut and clinch unit 100 is rotated counterclockwise to bend the lead 204 into the N-bent state as shown in FIG. By rotating the cut and clinch unit 100 clockwise, it is possible to bend the leads 204 into a reverse N-bend state in which the lead 204 is bent in the opposite direction to the N-bend state shown in FIG. However, in order to realize the reverse N bending state, it is necessary to arrange the protrusion 134 and the second guide groove 142 on the opposite side of the second insertion hole 136 from the position shown in FIG.

34: Cut and clinch device (cutting/bending device) (cutting device) 36: Control device 110: Unit main body (holding part) 112: Slide body (main body part) 120: Fixed part (first part) 122: Movable part ( Part 2) 130: First insertion hole (first through hole) 134: Projection 136: Second insertion hole (second through hole) 140a: First inner guide groove (first groove) 140b: First outer guide Groove (first groove) 142: Second guide groove (second groove) 156: Rotation device (rotation mechanism) 200: Lead component 204: Lead 250: First operation control section 252: Second operation control section 254: Third Operation control part

The present invention relates to a cutting/bending device for cutting/bending leads when mounting a lead component on a substrate.

When a lead component is attached to a substrate, leads are inserted into through-holes formed in the substrate, and the leads are cut and bent, as described in the following patent documents.

JP-A-4-320400

According to the technique described in the above patent document, it is possible to mount the lead component on the board appropriately to some extent. However, by appropriately cutting the leads or by appropriately cutting and bending the leads, it is possible to more appropriately mount the lead component on the substrate. The present invention has been made in view of such circumstances, and an object of the present invention is to appropriately mount a lead component on a substrate.

In order to solve the above problems, a cutting/bending device according to the present invention provides a pair of main body portions having a fixed portion and a movable portion, and the pair of main body portions can be moved toward and away from each other in a first direction. and a control device for bending the pair of leads in directions different from the first direction in opposite directions to separate the leads after cutting the pair of leads of the lead component inserted into the circuit board. and the movable portion of each of the pair of main body portions along which the pair of leads are bent when bending the pair of leads in directions opposite to the first direction in which the leads are spaced apart from each other. Cutting and bending characterized by comprising a guide formed at an upper end, and a protrusion formed at a part of the upper end of each of the fixing portions of the pair of main body portions and supporting the circuit board. Device.

According to the cutting/bending device of the present invention, it is possible to properly bend the lead and appropriately mount the lead component on the board.

It is a perspective view showing a component mounter. It is a perspective view showing a component mounting device. It is a perspective view showing a cut and clinch device. It is a perspective view showing a cut and clinch unit. It is a sectional view showing a slide body. It is an enlarged view which shows a slide body. It is a block diagram which shows a control apparatus. FIG. 4 is a cross-sectional view showing the cut-and-clinch unit just before the lead of the lead component is cut; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an inwardly bent state; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an outwardly bent state; FIG. 10 is a cross-sectional view showing the cut and clinch unit after the leads of the lead component have been bent; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4 is a plan view showing the slide body as viewed from above; FIG. 4B is a schematic diagram showing a lead bent in an N-bend condition; FIG. 10 is a cross-sectional view showing the cut and clinch unit after the leads of the lead component have been bent; FIG. 4 is a cross-sectional view showing the cut and clinch unit after the lead of the lead component has been cut; FIG. 4B is a schematic diagram showing a lead bent in an N-bend condition;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

<Configuration of component mounter>
FIG. 1 shows a component mounter 10. As shown in FIG. The component mounter 10 is a device for mounting components on the circuit board 12 . The component mounter 10 includes an apparatus main body 20, a substrate conveying and holding device 22, a component mounting device 24, a mark camera 26, a parts camera 28, a component supply device 30, a bulk component supply device 32, and a cut and clinch device (see FIG. 3). 34 and a control device (see FIG. 7) 36 . The circuit board 12 includes a circuit board, a three-dimensional structure base material, and the like, and the circuit board includes a printed wiring board, a printed circuit board, and the like.

The device body 20 is composed of a frame portion 40 and a beam portion 42 mounted on the frame portion 40 . The substrate conveying/holding device 22 is arranged in the center of the frame portion 40 in the front-rear direction, and has a conveying device 50 and a clamping device 52 . The transport device 50 is a device that transports the circuit board 12 , and the clamp device 52 is a device that holds the circuit board 12 . Thereby, the substrate conveying/holding device 22 conveys the circuit substrate 12 and also holds the circuit substrate 12 fixedly at a predetermined position. In the following description, the direction in which the circuit board 12 is conveyed is called the X direction, the horizontal direction perpendicular to that direction is called the Y direction, and the vertical direction is called the Z direction. That is, the width direction of the mounter 10 is the X direction, and the front-rear direction is the Y direction.

The component mounting device 24 is arranged on the beam portion 42 and has two working heads 60 and 62 and a working head moving device 64 . As shown in FIG. 2, suction nozzles 66 are provided on the lower end surfaces of the working heads 60 and 62, and the suction nozzles 66 suck and hold the components. The work head moving device 64 also has an X-direction moving device 68 , a Y-direction moving device 70 and a Z-direction moving device 72 . The two working heads 60 and 62 are integrally moved to arbitrary positions on the frame portion 40 by the X-direction moving device 68 and the Y-direction moving device 70 . The working heads 60, 62 are detachably attached to sliders 74, 76, and the Z-direction moving device 72 moves the sliders 74, 76 individually in the vertical direction. That is, the working heads 60 and 62 are individually moved vertically by the Z-direction moving device 72 .

The mark camera 26 faces downward and is mounted on the slider 74 and is moved together with the working head 60 in the X, Y and Z directions. Thereby, the mark camera 26 images an arbitrary position on the frame section 40 . As shown in FIG. 1, the parts camera 28 is arranged facing upward between the substrate conveying/holding device 22 and the parts supplying device 30 on the frame portion 40 . Thereby, the parts camera 28 images the parts gripped by the suction nozzles 66 of the working heads 60 and 62 .

The component supply device 30 is arranged at one end of the frame portion 40 in the front-rear direction. The component supply device 30 has a tray type component supply device 78 and a feeder type component supply device (see FIG. 7) 80 . The tray-type component supply device 78 is a device that supplies components placed on a tray. The feeder-type component supply device 80 is a device that supplies components using a tape feeder or stick feeder (not shown).

The bulk part supply device 32 is arranged at the other end of the frame portion 40 in the front-rear direction. The discrete component supply device 32 is a device that aligns a plurality of scattered components and supplies the components in an aligned state. In other words, it is a device that aligns a plurality of parts in arbitrary postures in a predetermined posture and supplies the components in the predetermined posture.

Components supplied by the component supply device 30 and the bulk component supply device 32 include electronic circuit components, solar cell components, power module components, and the like. Electronic circuit components include components with leads and components without leads.

The cut and clinch device 34 is arranged below the transport device 50 and has a cut and clinch unit 100 and a unit moving device 102 as shown in FIG. The cut and clinch unit 100 includes a unit body 110, a pair of slide bodies 112, and a pitch change mechanism 114, as shown in FIG. A slide rail 116 is arranged at the upper end of the unit main body 110 so as to extend in the X direction. A pair of slide bodies 112 are slidably supported by the slide rails 116 . As a result, the pair of slide bodies 112 approaches and separates in the X direction. In addition, the pitch changing mechanism 114 has an electromagnetic motor 118, and the operation of the electromagnetic motor 118 controlsably changes the distance between the pair of slide bodies 112. As shown in FIG.

5, each of the pair of slide bodies 112 includes a fixed portion 120, a movable portion 122, and a slide device 124, and is slidably held by the slide rails 116 at the fixed portion 120. . Two slide rails 126 are fixed to the back side of the fixed portion 120 so as to extend in the X direction, and the movable portion 122 is slidably held by these two slide rails 126 . Thereby, the movable part 122 slides in the X direction with respect to the fixed part 120 . The slide device 124 also has an electromagnetic motor (see FIG. 7) 128, and the operation of the electromagnetic motor 128 causes the movable portion 122 to slide controllably.

In addition, the upper end portion of the fixing portion 120 is tapered, and a first insertion hole 130 is formed so as to penetrate the upper end portion in the vertical direction. The upper end of the first insertion hole 130 opens to the upper end surface of the fixing portion 120 , and the edge of the opening to the upper end surface serves as a fixed blade (see FIG. 8) 131 . In addition, the first insertion hole 130 has an opening on the side surface of the fixed part 120 at its lower end, and a disposal box 132 is arranged below the opening to the side surface.

As shown in FIG. 6, the upper end portion of the movable portion 122 is also tapered, and the upper end portion is formed with a bent portion 133 that is bent into an L-shape. The bent portion 133 extends above the upper end surface of the fixed portion 120, and the bent portion 133 and the upper end of the fixed portion 120 face each other with a slight clearance therebetween. Also, the first insertion hole 130 opening in the upper end surface of the fixing portion 120 is covered with the bent portion 133 , but the bent portion 133 has a second insertion hole 136 so as to face the first insertion hole 130 . is formed.

In addition, the tip of the bent portion 133 extends to the middle of the upper end surface of the fixed portion 120, and a part of the upper end surface of the fixed portion 120 is exposed. A projecting portion 134 extending upward from the bent portion 133 is formed on an exposed part of the upper end face. That is, a protrusion 134 is formed on the upper end surface of the fixed portion 120 so as to face the tip of the bent portion 133 .

Further, the second insertion hole 136 of the bent portion 133 is a through hole that penetrates the bent portion 133 in the vertical direction. ing. On the other hand, the inner peripheral surface of the first insertion hole 130 near the opening to the upper end surface of the fixing portion 120 is not tapered, and the inner diameter of the first insertion hole 130 near the opening is generally uniform. A movable blade (see FIG. 8) 138 is provided at the opening edge of the second insertion hole 136 to the lower end surface of the bent portion 133 .

A first guide groove 140 is formed in the upper end surface of the bent portion 133 so as to extend in the X direction, that is, the sliding direction of the movable portion 122 . The first guide groove 140 is formed to straddle the opening of the second insertion hole 136, and the first guide groove 140 and the second insertion hole 136 are connected. Also, the first guide groove 140 is open on both side surfaces of the bent portion 133 . The inner side surface of the first guide groove 140, that is, the side surface on the side facing the pair of slide bodies 112 is referred to as a first inner guide groove 140a. Of these, the side opening on the outer side, that is, the side on the side where the pair of slide bodies 112 do not face each other may be referred to as the first outer guide groove 140b. Furthermore, a second guide groove 142 is formed on the upper surface of the bent portion 133 so as to extend toward the side opposite to the distal end of the bent portion 133 , that is, toward the proximal end of the bent portion 133 . One end of the second guide groove 142 is connected to the second insertion hole 136 , and the other end opens to the side surface of the bent portion 133 on the proximal end side.

Also, the pair of slide bodies 112 are arranged point-symmetrically. That is, one of the pair of slide bodies 112 is arranged with the other rotated 180 degrees around the vertical line. Therefore, the pair of slide bodies 112 are illustrated as shown in FIG. 15 when viewed from above. Specifically, the second guide groove 142 on one side of the pair of slide bodies 112 and the second guide groove 142 on the other side of the pair of slide bodies 112 extend in mutually different directions. A second guide groove 142 is formed on the opposite side of the second insertion hole 136 .

3, the unit moving device 102 has an X-direction moving device 150, a Y-direction moving device 152, a Z-direction moving device 154, and a rotation device 156. As shown in FIG. The X-direction moving device 150 includes slide rails 160 and an X-slider 162 . The slide rail 160 is arranged to extend in the X direction, and the X slider 162 is slidably held on the slide rail 160 . The X slider 162 is moved in the X direction by being driven by an electromagnetic motor (see FIG. 7) 164 . Y-direction moving device 152 includes a slide rail 166 and a Y-slider 168 . A slide rail 166 is arranged on the X slider 162 so as to extend in the Y direction, and a Y slider 168 is slidably held on the slide rail 166 . The Y slider 168 is moved in the Y direction by being driven by an electromagnetic motor (see FIG. 7) 170 . The Z-direction movement device 154 includes slide rails 172 and Z sliders 174 . The slide rail 172 is arranged on the Y slider 168 so as to extend in the Z direction, and the Z slider 174 is slidably held on the slide rail 172 . The Z slider 174 is moved in the Z direction by driving an electromagnetic motor (see FIG. 7) 176 .

The rotation device 156 also has a generally disk-shaped rotary table 178 . The rotary table 178 is supported by the Z slider 174 so as to be rotatable around its axis, and is rotated by being driven by an electromagnetic motor (see FIG. 7) 180 . A cut and clinch unit 100 is arranged on the rotary table 178 . With such a structure, the cut and clinch unit 100 can be moved to any position by the X-direction moving device 150, Y-direction moving device 152, and Z-direction moving device 154, and can be rotated at any angle by the rotating device 156. do. Note that the axis of the rotary table 178 and the midpoint of the straight line connecting the pair of slide bodies 112 coincide. Therefore, when the cut-and-clinch unit 100 is rotated by the rotating device 156, the pair of slide bodies 112 rotate about the midpoint of the straight line connecting the pair of slide bodies 112. FIG. Thereby, the second insertion hole 136 of the cut-and-clinch unit 100 can be positioned at an arbitrary position below the circuit board 12 held by the clamping device 52 .

The control device 36 includes a controller 190, a plurality of drive circuits 192, and an image processing device 196, as shown in FIG. A plurality of drive circuits 192 include the conveying device 50, the clamp device 52, the working heads 60 and 62, the working head moving device 64, the tray-type component supply device 78, the feeder-type component supply device 80, the bulk component supply device 32, and the electromagnetic motor. 118, 128, 164, 170, 176, 180. The controller 190 includes a CPU, ROM, RAM, etc., is mainly a computer, and is connected to a plurality of drive circuits 192 . Accordingly, the controller 190 controls the operations of the substrate conveying/holding device 22, the component mounting device 24, and the like. The controller 190 is also connected to an image processing device 196 . The image processing device 196 processes the image data obtained by the mark camera 26 and the parts camera 28, and the controller 190 obtains various information from the image data.

<Operation of mounter>
In the component mounter 10, the operation of mounting components is performed on the circuit board 12 held by the board conveying/holding device 22 by the above-described configuration. Various components can be mounted on the circuit board 12 by the component mounter 10 . The case of mounting will be described below.

Specifically, the circuit board 12 is transported to a working position, where it is held fixedly by a clamping device 52 . Next, the mark camera 26 moves above the circuit board 12 and images the circuit board 12 . Thereby, information about the holding position of the circuit board 12 and the like can be obtained. Further, the component supply device 30 or bulk component supply device 32 supplies lead components at a predetermined supply position. Then, one of the working heads 60 and 62 moves above the component supply position and holds the component with the suction nozzle 66 . 8, the lead component 200 is composed of a component fixing portion 202 and two leads 204 extending from the bottom surface of the component fixing portion 202. As shown in FIG. The lead component 200 is sucked and held at the component fixing portion 202 by the suction nozzle 66 .

Subsequently, the working heads 60 and 62 holding the lead component 200 move above the parts camera 28 , and the lead component 200 held by the suction nozzle 66 is imaged by the parts camera 28 . As a result, information regarding the holding position of the component and the like can be obtained. Subsequently, the working heads 60 and 62 holding the lead component 200 are moved above the circuit board 12 to correct errors in the holding position of the circuit board 12 and components. Two leads 204 of lead component 200 sucked and held by suction nozzle 66 are inserted into two through holes 208 formed in circuit board 12 . At this time, the cut and clinch unit 100 is moved below the circuit board 12 . In the cut-and-clinch unit 100, the coordinates of the second insertion hole 136 of the movable part 122 in the XY direction and the coordinates of the through hole 208 of the circuit board 12 in the XY direction match. It has been moved so that the top surface is slightly below the bottom surface of circuit board 12 .

Specifically, in the cut and clinch unit 100, the distance between the second insertion holes 136 of the movable parts 122 of the pair of slide bodies 112 is the distance between the two through holes 208 formed in the circuit board 12. The distance between the pair of slide bodies 112 is adjusted by the pitch changing mechanism 114 so as to be the same as the distance. By the operation of the unit moving device 102, the cut and clinch unit 100 is moved in the XYZ directions and rotated. As a result, the XY coordinates of the second insertion hole 136 of the movable portion 122 and the XY coordinates of the through hole 208 of the circuit board 12 match. In addition, as described above, the protrusion 134 extending upward from the bent portion 133 of the movable portion 122 is formed on the upper end surface of the fixed portion 120 . The distance from the lower surface is ensured by the protrusion 134 . As a result, the upper surface of the movable portion 122 is positioned slightly below the lower surface of the circuit board 12 .

When the lead 204 of the lead component 200 sucked and held by the suction nozzle 66 is inserted into the through hole 208 of the circuit board 12, the tip of the lead 204 is cut and clinched as shown in FIG. It is inserted into the first insertion hole 130 of the fixed part 120 via the second insertion hole 136 of the movable part 122 of the unit 100 . At this time, since the inner peripheral surface of the second insertion hole 136 positioned below the through-hole 208 is tapered, even if the lead 204 is bent to some extent, the tip of the lead 204 will not be bent. 2 insertion hole 136 can be properly secured.

Next, when the tip of the lead 204 is inserted into the first insertion hole 130 via the second insertion hole 136, the pair of movable parts 122 slide in the approaching direction due to the operation of the slide device 124. . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. Then, the tip portion separated by cutting the lead 204 falls inside the first insertion hole 130 and is disposed of in the disposal box 132 .

Also, the pair of movable parts 122 are slid in the direction of approaching even after the lead 204 is cut. Therefore, the new distal end of the lead 204 resulting from the cutting bends along the tapered surface of the inner circumference of the second insertion hole 136 as the movable portion 122 slides, and furthermore, as the movable portion 122 slides, , the tip of the lead 204 is bent along the first outer guide groove 140b. At this time, the pair of leads 204 are bent toward each other along the direction in which the pair of leads 204 are arranged. As a result, the lead component 200 is attached to the circuit board 12 while the lead 204 is prevented from coming out of the through hole 208 .

In this manner, in the component mounter 10, the pair of leads 204 are cut by the cut and clinch device 34, and the lead component 200 is attached to the circuit board 12 in a state in which the pair of leads 204 are bent inward (hereinafter referred to as an "inwardly bent state"). be worn. However, there are cases where the lead component 200 cannot be properly attached to the circuit board 12 in the inwardly bent state. Specifically, for example, when the distance between the pair of leads 204 is short, that is, when the distance between the pair of through holes 208 formed in the circuit board 12 is short, the inwardly bent state A pair of leads 204 may touch and short as shown in FIG. Therefore, when the distance between the pair of leads 204 is short, the lead component 200 is attached to the circuit board 12 with the pair of leads 204 bent outward (hereinafter referred to as "outward bending state"). be done.

Specifically, as shown in FIG. 8, the leads 204 are inserted into the first insertion hole 130 and the second insertion hole 130 through the through holes 208, as shown in FIG. 2 is inserted into the insertion hole 136 . Next, the pair of movable parts 122 are slid away from each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. After the lead 204 is cut, the pair of movable parts 122 are slid further apart. Therefore, the new distal end of the lead 204 resulting from the cutting bends along the tapered surface of the inner circumference of the second insertion hole 136 as the movable portion 122 slides, and furthermore, as the movable portion 122 slides, , the tip of the lead 204 is bent along the first inner guide groove 140a. At this time, the pair of leads 204 are bent in a direction away from each other along the direction in which the pair of leads 204 are arranged. As a result, the lead component 200 is attached to the circuit board 12 in an outwardly bent state.

However, there are cases where the lead component 200 cannot be properly attached to the circuit board 12 even in the outwardly bent state. Specifically, for example, when the mounting positions of two lead components 200 are close to each other in the direction in which the leads 204 are arranged, as shown in FIG. , and a through hole 208b for mounting another lead component 200 are adjacent to each other in the direction in which the leads 204 are arranged. Therefore, the leads 204a of the lead component 200 attached to the through hole 208a in an outwardly bent state and the leads 204b of the lead component 200 attached to the through hole 208b in an outwardly bent state may come into contact with each other and cause a short circuit. Therefore, in such a case, the lead component 200 is attached to the circuit board 12 with the pair of leads 204 bent in an N-shape (hereinafter referred to as "N-bent state").

Specifically, as shown in FIG. 8, the leads 204 are inserted through the through-holes 208 in the same way as when the lead component 200 is attached to the circuit board 12 in an inwardly bent state or an outwardly bent state. It is inserted into the first insertion hole 130 and the second insertion hole 136 . Next, as shown in FIG. 13, the pair of slide bodies 112 are moved such that the distance between the pair of slide bodies 112 is increased. That is, the pair of slide bodies 112 are slid away from each other. This bends slightly so that the pair of leads 204 spread apart.

The slide amount of the slide body 112 depends on the edge of the fixed blade 131 that cuts the lead 204 when the movable part 122 slides inward and the slide body 112 on the outer peripheral surface of the base end of the lead 204. It is set so that the closest point matches in the vertical direction. That is, the slide body 112 is slid so that the proximal end of the lead 204 and the first insertion hole 130 are slightly overlapped in the vertical direction.

When the pair of slide bodies 112 are slid away from each other, the pair of movable portions 122 are slid toward each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. At the timing when the lead 204 is cut, the sliding of the movable portion 122 is stopped. At this time, the through hole 208 and the second insertion hole 136 of the movable portion 122 are generally aligned in the vertical direction. This is because the slide amount of the slide body 112 is set as described above. Therefore, the lead 204 that has been curved due to the sliding of the slide body 112 is restored to a substantially straight line due to the sliding of the movable portion 122 .

Next, the cut-and-clinch unit 100 rotates by the operation of the rotation device 156 . At this time, the pair of slide bodies 112 rotate about the midpoint 210 of the straight line connecting the pair of slide bodies 112, as shown in FIG. It should be noted that the pair of slide bodies 112 rotates so that the protrusions 134 are in the advancing direction. That is, the pair of slide bodies 112 rotate so that the protrusion 134 is positioned forward and the second guide groove 142 is positioned rearward. This makes it possible to prevent interference between the leads 204 and the protrusions 134 when the slide body 112 rotates.

At this time, the lead 204 inserted into the second insertion hole 136 is bent along the inner peripheral tapered surface of the second insertion hole 136 as the slide body 112 rotates. Further, the tip of the lead 204 is bent along the second guide groove 142 by further rotating the slide body 112 . The inner wall surface of the second guide groove 142 is oriented perpendicularly to the first guide groove 140 on one side and along the direction of rotation of the slide body 112 on the other side. Therefore, the lead 204 is bent along the other inner wall surface of the second guide groove 142, and as shown in FIG. , are bent in the direction of separation. That is, a pair of leads 204 are bent in a generally N-shape. As a result, the lead component 200 is attached to the circuit board 12 in the N-bent state.

Moreover, it is possible to attach the lead component 200 to the circuit board 12 in the N-bent state by a method different from the above method. Specifically, as shown in FIG. 8, the leads 204 are inserted through the through-holes 208 in the same way as when the lead component 200 is attached to the circuit board 12 in an inwardly bent state or an outwardly bent state. It is inserted into the first insertion hole 130 and the second insertion hole 136 . Next, as shown in FIG. 17, the pair of slide bodies 112 are moved so that the distance between the pair of slide bodies 112 is shortened. That is, the pair of slide bodies 112 are slid in the approaching direction. This causes the pair of leads 204 to bend slightly to close. Note that the amount of sliding of the slide body 112 is set by a method similar to the method described above.

When the pair of slide bodies 112 are slid toward each other, the pair of movable portions 122 are slid away from each other by the operation of the slide device 124 . Thereby, the lead 204 is cut by the fixed blade 131 of the first insertion hole 130 and the movable blade 138 of the second insertion hole 136, as shown in FIG. At the timing when the lead 204 is cut, the sliding of the movable portion 122 is stopped. At this time, the through hole 208 and the second insertion hole 136 of the movable portion 122 are generally aligned in the vertical direction. Therefore, the lead 204 that has been curved due to the sliding of the slide body 112 is restored to a substantially straight line due to the sliding of the movable portion 122 .

Next, the cut and clinch unit 100 is rotated by the operation of the rotation device 156, so that the pair of slide bodies 112 are positioned at the midpoint 210 of the straight line connecting the pair of slide bodies 112, as shown in FIG. rotate around. It should be noted that the pair of slide bodies 112 rotates so that the protrusions 134 are in the advancing direction. The lead 204 inserted into the second insertion hole 136 bends along the tapered surface on the inner periphery of the second insertion hole 136 as the slide body 112 rotates. Further, the tip of the lead 204 is bent along the second guide groove 142 by further rotating the slide body 112 . As a result, as shown in FIG. 16, the pair of leads 204 are generally bent in an N-shape, and the lead component 200 is attached to the circuit board 12 in the N-bent state.

In this way, by sliding the pair of slide bodies 112 in the direction of separation and sliding the pair of movable parts 122 in the direction of approach, the lead 204 is cut, and then the cut and clinch unit 100 rotates. to bring the leads 204 into an N-bent state (hereinafter sometimes referred to as a “first N-bending method”), and a pair of sliding bodies 112 are slid in the approaching direction to move the pair of movable parts 122 apart. A method of cutting the lead 204 by sliding it in a direction to bend the lead 204, and then making the lead 204 into an N-bent state by rotating the cut and clinch unit 100 (hereinafter sometimes referred to as a “second N-bending method”). It is possible to attach the lead component 200 to the circuit board 12 in an N-bent state according to any one of the above methods.

When the distance between the pair of leads 204 is short, it is preferable to adopt the first N bending method, and when the distance between the pair of leads 204 is long, it is preferable to adopt the second N bending method. preferable.

Moreover, even in the N-bent state, the lead component 200 may not be properly attached to the circuit board 12 in some cases. Specifically, for example, when the mounting positions of the two lead components 200 are close in a direction different from the direction in which the leads 204 are arranged, as shown in FIG. A hole 208a and a through hole 208b for mounting another lead component 200 are adjacent to each other in a direction different from the direction in which the leads 204 are arranged. Therefore, the leads 204a of the lead component 200 attached to the through hole 208a in an outwardly bent state and the leads 204b of the lead component 200 attached to the through hole 208b in an outwardly bent state may come into contact with each other and cause a short circuit. Therefore, in such a case, the lead component 200 is attached to the circuit board 12 in an outwardly bent state or an inwardly bent state.

Thus, the cut-and-clinch device 34 can mount the lead component 200 on the circuit board 12 in any one of the inwardly bent state, the outwardly bent state, and the N-bent state. As a result, it is possible to attach the lead components 200 to the circuit board 12 in various ways. It is possible to appropriately mount the lead component 200 on the circuit board 12 without causing a short circuit or the like.

The controller 190 of the control device 36 has a first operation control section 250, a second operation control section 252, and a third operation control section 254, as shown in FIG. The first operation control section 250 is a functional section for attaching the lead component 200 to the circuit board 12 in an inwardly bent state. The second operation control section 252 is a functional section for attaching the lead component 200 to the circuit board 12 in an outwardly bent state. The third operation control section 254 is a functional section for attaching the lead component 200 to the circuit board 12 in the N-bent state.

Also, the cut and clinch device 34 is an example of a cutting/bending device and a cutting device. The control device 36 is an example of a control device. The unit main body 110 is an example of a holding portion. The slide body 112 is an example of the main body. The fixed part 120 is an example of the first part. The movable portion 122 is an example of a movable portion. The first insertion hole 130 is an example of a first through hole. Projection 134 is an example of a projection. The second insertion hole 136 is an example of a second through hole. The first guide groove 140 is an example of a first groove. The second guide groove 142 is an example of a second groove. The rotation device 156 is an example of a rotation mechanism. Lead component 200 is an example of a lead component. Lead 204 is an example of a lead. The first operation control section 250 is an example of a first operation control section. The second operation control section 252 is an example of a second operation control section. The third operation control section 254 is an example of a third operation control section.

It should be noted that the present invention is not limited to the above embodiments, and can be implemented in various modes with various modifications and improvements based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the present invention is applied to the cut and clinch device 34 that cuts and bends the lead 204, but the present invention is applied to the lead cutting device that cuts the lead 204. It is possible to That is, when the lead component 200 is attached to the circuit board 12 in the N-bent state, after the pair of slide bodies 112 are slid in one of the directions of separating and approaching, the pair of movable parts 122 are moved. The present invention can be applied to a device that cuts the lead 204 by sliding it in the other of the separation direction and the approaching direction. As a result, the cut leads 204 can be straightened.

In the above-described embodiment, the suction nozzle 66 is used as a holder for holding the lead component 200 . A body chuck or the like can be employed.

In the above embodiment, as shown in FIG. 15, the cut and clinch unit 100 is rotated counterclockwise to bend the lead 204 into the N-bent state as shown in FIG. By rotating the cut and clinch unit 100 clockwise, it is possible to bend the leads 204 into a reverse N-bend state in which the lead 204 is bent in the opposite direction to the N-bend state shown in FIG. However, in order to realize the reverse N bending state, it is necessary to arrange the protrusion 134 and the second guide groove 142 on the opposite side of the second insertion hole 136 from the position shown in FIG.

34: Cut and clinch device (cutting/bending device) (cutting device) 36: Control device 110: Unit main body (holding part) 112: Slide body (main body part) 120: Fixed part (first part) 122: Movable part ( Part 2) 130: First insertion hole (first through hole) 134: Projection 136: Second insertion hole (second through hole) 140a: First inner guide groove (first groove) 140b: First outer guide Groove (first groove) 142: Second guide groove (second groove) 156: Rotation device (rotation mechanism) 200: Lead component 204: Lead 250: First operation control section 252: Second operation control section 254: Third Operation control part

Claims (5)

In a cutting/bending device that cuts and then bends a pair of leads of a lead component,
The cutting/bending device
a first operation control unit that, after cutting a pair of leads of a lead component, bends the pair of leads in a direction in which the pair of leads are aligned in a first direction in which the pair of leads are arranged;
a second operation control section that bends the pair of leads in the first direction in a direction to separate the leads after cutting the pair of leads of the lead component;
and a third operation control unit that bends the pair of leads in a direction different from the first direction after cutting the pair of leads of the lead component in a direction to separate the leads from each other. flexing device. The cutting/bending device
(A) a first part in which a first through hole is formed; and (B) a second part in which a second through hole is formed so as to overlap with the first through hole and slides with respect to the first part. , respectively, a pair of body portions having;
a holding portion that holds the pair of main body portions so as to be able to approach and separate from each other in the sliding direction of the second portion;
and a rotation mechanism for rotating the holding part,
The first operation control unit is
The leads are inserted into the first through-hole and the second through-hole that are superimposed, and the pair of second parts are slid in a direction to approach each other to cut the pair of leads. sliding the second portion of the further in a direction to bring the pair of leads closer together, thereby bending the pair of leads in the first direction in a direction to bring them closer together;
The second operation control unit is
The leads are inserted into the first through-hole and the second through-hole that are superimposed on each other, and the pair of second parts are slid in the direction of separating them to cut the pair of leads. further sliding the second portion of the pair of leads in the direction to separate them, thereby bending the pair of leads in the first direction in the direction to separate them,
The third operation control unit is
Leads are inserted into the first through-hole and the second through-hole in a state of being superimposed, and the pair of main body portions are moved in one of a direction of approaching and a direction of separating from each other. After cutting the pair of leads by sliding the pair of second parts in a direction opposite to the one direction, the holding part is rotated by the rotation mechanism, thereby cutting the pair of leads in a direction different from the first direction. 2. The cutting/bending device according to claim 1, wherein the leads are bent in a direction in which the leads are separated from each other. the second part is
a first groove formed in the upper surface of the second part so as to extend in the sliding direction of the second part;
and a second groove formed in the upper surface of the second portion so as to extend in a direction opposite to a direction in which the holding portion is rotated by the third operation control portion. Item 3. The cutting/bending device according to item 2. The main body is
1 or 2, characterized in that the upper surface of one of the first part and the second part has a projection part formed in a part of the direction in which the holding part is rotated by the third operation control part. 4. A cutting and bending device according to any one of claims 3. (A) a first part in which a first through hole is formed; and (B) a second part in which a second through hole is formed so as to overlap with the first through hole and slides with respect to the first part. , respectively, a pair of body portions having;
a holding portion that holds the pair of main body portions so as to be able to approach and separate from each other in the sliding direction of the second portion;
A cutting device for cutting a pair of leads of a lead component, comprising:
The control device
Leads are inserted into the first through-hole and the second through-hole in a state of being superimposed, and the pair of main body portions are moved in one of a direction of approaching and a direction of separating from each other. A cutting device for cutting a pair of leads by sliding the pair of second parts in a direction opposite to the one direction.

Images