JPH039359Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a lead wire cutter that cuts a large number of excess lead wires protruding from the back side of a printed circuit board to a fixed size, and is mainly used to move the printed circuit board and prevent it from warping. This invention relates to a carrier device for attaching devices, etc.

<Prior Art> Conventionally, the carrier device of a printed circuit board lead wire cutter is attached to two parallel rails or guide rods (carrier guides) provided on the cutter device, and runs horizontally along the carrier guide. The printed circuit board was attached to a carrier, or the printed circuit board was fed by contacting the rear end of the printed circuit board on a board guide provided separately from the travel guide.

<Problems to be solved by the invention> However, in conventional carrier devices that have a structure in which the board is attached to the carrier device itself, it is inefficient because the work of mounting and removing the board is done for each board. In the case where the upper substrate is fed by a carrier, the carrier guide must be provided separately from the substrate guide because the substrate guide is changed at any time depending on the width of the substrate, which complicates the mechanism of the cutter device, increases costs, and increases the cost of the device. There were problems such as uneconomical space on the table.

<Means for Solving the Problems> The carrier device of the present invention is intended to solve the above-mentioned problems. Attach a carrier 49 for moving the board 27 that runs along a carrier guide,
In the mechanism in which the cutter 2 is installed on the protruding surface side of the lead wire 29 of the board 27, the carrier 49
a plurality of vertical rods 51, 53 attached along the carrier guide; Book crossbar 5
5, 57, the vertical rods 51, 53 and the horizontal rods 55, 57 are parallel to each other, and the vertical rods 51, 53 are parallel to each other.
Both ends of either one of the vertical rods 51 and 53 or one end of both of the vertical rods 51 and 53 are connected to the horizontal rod 5 so that the interval between the two ends can be freely adjusted and fixed within the range of the length of the slit 63.
5 and 57, and is detachably fastened with a set bolt 65 through the slit 63.

<Function> In the carrier device of the present invention, the two vertical rods 51 and 53 run along the carrier guides such as the rails 13 and 15, and when the width of the carrier guide is changed, the horizontal rods 55 and 57 and the vertical rods By loosening the set bolt 65 at the joint with the horizontal rod 55,
The vertical rods 51 and 53 also slide according to the slits 63 of the substrate 27, and the width thereof can be changed according to the width of the carrier guide. Attachments 79 and the like that abut against the rear ends of the substrates and feed the substrates as the carrier advances are detachably attached so that their front and back or left and right positions can be adjusted.

<Example> Figures 1 to 4 show various mechanisms including the carrier device of the present invention on the operating table of the lead wire cutter. A disc cutter 2 is rotatably supported, and two guide shafts 7 are fixedly supported on two sets of bearings 5 horizontally and in parallel on the left and right sides near the front and rear ends of the table 3. ing. Two sleeve-shaped support guides 9, 9 are fitted to the guide shafts 7, 7 so as to be slidable left and right, respectively.
The slide position can be set according to the width of the disc cutter 2 and the position of the disc cutter 2. Further, the guide shaft 7 may have a square cross-section or may be screwed in opposite left and right directions, and the support guides 9, 9 may be correspondingly internally threaded.

Of the four support guides mentioned above, the ones on the left and right sides of each guide shaft 7, 7 are one set,
On each set of support guides 9, 9, there are two straight rails 13, 1 (left and right) that are parallel to each other in the front and back direction.
5 are fixedly placed as carrier guides and board guides, and the rails 13 and 15 move horizontally from side to side while maintaining a parallel state, and have a mechanism in which the interval between them can be adjusted. It stands out from the front and back.

The rails 13 and 15 have a rail main body 21 consisting of a guide portion 17 whose cross section protrudes upward at the outer position so that the upper surface is formed in two steps, and a running surface 19 which forms a horizontal surface inside the guide portion 17, and the rail body 21. It is composed of a plate-shaped guide plate 25 fixed to the bottom surface of the main body 21, whose inner ends protrude from the inner surface of the lower end of the rail main body 21, and whose upper surface of the protrusion forms a straight board guide surface 23.

Both ends of the board 27 on which printed wiring and parts are mounted are placed on the guide surface 23, and the board 27 is slid from the back to the front while being guided by the inner surface of the rail body. Therefore, the lead wire 29 protruding from the lower surface is cut to a certain size. In order to prevent the substrate 27 from moving in the vertical direction while moving forward during cutting, the following guide mechanism is provided on the disk cutter 2 and immediately after the substrate 27.

That is, each inner surface of the rail main body 21 at a position where the board 27 approaches the disc cutter 2 has a constant depth and a constant length in the front-rear direction, and the inner surface and the inner surface of the front and rear ends communicate at least upwardly. A facing guide accommodation recess 31 is formed, and the guide accommodation recess 31 has a thickness such that its side surface protrudes by a certain amount onto the substrate guide surface 23, and is fitted in contact with the inner surface of the front and rear ends of the guide accommodation recess 31. Long key-shaped presser guides 33 are fitted in a vertically slidable manner, respectively. And this holding guide 33
Elongated holes 35, 35 in the vertical direction are bored in the front and back, and the rail body 21 is fastened to the rail body 21 with set screws 37, 37 so that the vertical position can be freely adjusted.

By adjusting the distance between the bottom surface of the holding guide 33 and the board guide surface 23 according to the thickness of the board 27 that passes through this (the lead wire is to be cut), the board 27 is held from above and below, thereby preventing vertical vibration. It runs horizontally and moves forward. At this time, the rear end surface of the holding guide 33 is rounded or chamfered to a certain degree so that the substrate 27 can be smoothly guided between the bottom surface of the holding guide 33 and the substrate guide surface 23.

On the other hand, each guide plate 2 corresponding to the disc cutter 2
A planar recess 39 is formed on the bottom surface of the disc cutter 5 and is large enough to accommodate the disc cutter 2 so that its rotation is not hindered even when the rails 13 and 15 are at the minimum interval. By forming the lead wire, the distance between the substrate guide surface 23 and the cutting edge of the disk cutter 2 during lead wire cutting is narrowed, and the uncut dimension of the lead wire 29 is shortened accordingly.

Further, on the outer surface of the rails 13, 15 at the corresponding position of the disc cutter 2, a plate safety cover 41 having a constant width and length in the front and back direction protrudes horizontally to the outside of the rails 13, 15. It is fixed with screws 43 or the like so as to cover the top of the disc cutter 2 that protrudes from the top. This safety cover 41 includes a fixed cover 41a whose inner end is bent into an L-shape and which fixes the bent portion along the outer surface of the rail, and a fixed cover 41a that
The movable cover 41b is configured to extend and contract further outward from the outer end along the upper surface or lower surface of the movable cover 41b. In the illustrated example, each cover 41a and 41
Each cover 41 is stacked with horizontal slits 45 of the same pitch in the front and rear positions of b, and the movable cover 41b is placed below the fixed cover 41a.
The structure is such that screws 47 passing through a and 41b vertically are passed through the overlapping slits 45, and the expansion/contraction length is adjusted and the screws are tightened and fixed.

A carrier 49 as shown in FIG. 2 is placed on the rails 13, 15 so that it can freely run back and forth while being guided by the rails 13, 15. When assembled, the carrier 49 is framed in a rectangular shape, runs in the same direction as the rails 13 and 15, and is fitted onto each rail 13 and 15 to travel straight in the front and back direction.
A frame is formed by the vertical rods 51 and 53 of the book and two horizontal rods 55 and 57 with angular cross sections whose ends are fixed to the front or rear ends of the vertical rods 51 and 53 at right angles. There is.

That is, the front horizontal rod 55 is located at the front end of the left vertical rod 51.
The left end of the right side vertical rod 53 and the right end of the rear horizontal rod 57 are integrally fixed to the rear end of the right vertical rod 53, respectively.
The frame pieces 59, 61 are formed in the shape of a letter, and slits 63, 63 in the left and right direction are cut in the center of each side of each horizontal rod 55, 57 having an angular cross section. The front end of the end 53 is brought into contact with the inner surface of the angle of the horizontal rod 55 or 57, and is fastened and fixed by a set bolt 65 through the slits 63 and 63, respectively, so that it can be freely attached and detached and the left and right position can be adjusted.

A bracket 6 is attached to the bottom surface of each vertical rod 51, 53 near the front and rear ends so that the end portion protrudes in the horizontal direction.
7, 67, and guide rollers 69, 69 made of a pair of bearings are supported at the left and right protruding ends of each bracket 67 at a constant interval in the vertical axis direction. For the left vertical rod 51, the guide portion 17 is accommodated between the guide rollers 69, 69 so as to sandwich the guide portion 17 of the left rail 13 from both the left and right sides. guide roller 69,
The guide portions 17 are accommodated from below between the guide portions 69 so as to circumscribe both sides of the guide portions 17 of the right rail 15. As a result, the vertical rods 51, 53 are the rails 13,
15, and the set bolt 11
After determining the distance between the rails 13 and 15 by
A mechanism is provided in which the vertical bars 51, 53 and the horizontal bars 55, 57 are fixed using set bolts 65.

Further, on the bottom surfaces of the vertical rods 51, 53 near the position where the guide roller 69 is provided (in the illustrated example, inside the longitudinal direction), a support roller 7 made of a bearing or the like is installed in the transverse direction via a bracket 71.
3 is pivotally supported, and the support roller 73 is attached to the rail 1.
The carrier 4 is in contact with the upper surface of the running surface 19 of 3 and 15.
9 itself is supported on the rail so that it can move freely back and forth. Stoppers 76 are attached to the ends of the rails 13 and 15 to prevent the carrier 49 from coming off the rails.

A bracket 75 whose upper and lower ends are bent into an L-shape is attached to and removed from the inner surface of the horizontal rod 57 at the rear of the carrier 49 so that it projects downward by a set bolt 77 inserted through a slit 63 on the upper surface of the horizontal rod 57. An attachment 79 is attached to the lower end of the attachment 79 so that it can be attached and detached in the horizontal direction. This attachment 79 has a longitudinal slit 80 in its center, through which a bolt 82 is passed and is attached so that its longitudinal position can be adjusted.

The tip of the attachment 79 comes into contact with the rear end of the board 27 supported horizontally on the board guide surfaces 23, 23 from below, and by moving the carrier 49 forward, the board 27 It functions to move itself horizontally forward.

Next, to explain the substrate straightening device according to the present invention, upwardly facing brackets 81, 81 are attached to the front and rear ends of the outer surface of the right (or left) vertical rod 53, and the ends thereof are parallel to the vertical rod 53. The front and rear ends of the plate-shaped guide rod 83 are rotatably supported. This guide rod 83 has a slider 85 that slides back and forth along the passage surface of the guide rod 83.
are removably fitted so that the slide position can be adjusted, and a plate-shaped slide arm 87 in the left and right direction is fitted to the upper part of the slider 85 so as to be slidable, and this slide arm 87 is positioned by a set bolt 89. adjusted and set,
It is manually slid around the pivot point of the guide rod 83, and is stopped by coming into contact with the upper surface of a plate-shaped stopper 91 protruding from the opposing vertical rod 51.

One or more rod holes 93 are protruding from the center of the slide arm 87, and the rod holes 93 have a length such that the tip thereof can reach and press the top surface of the substrate 27 located at the bottom of the carrier 49. The presser rod hole 95 is fitted in such a way that it faces downward and its protrusion length can be adjusted. In the substrate holding mechanism configured in this way, the arm 87
By rotating the lead wire downward, the upward warpage of the substrate 27 located below the lead wire is corrected during lead wire cutting.

Further, the rod 95 is not brought into direct contact with the substrate 27, but is hollow inside and used as an air nozzle. High-pressure air is sent from the upper end of the rod and blown onto the upper surface of the substrate from the tip, and the air pressure directs the substrate 27 upward. It is also possible to temporarily correct warpage.

On the other hand, an upward air nozzle 97 is provided at a position near the rear edge of the disc cutter 2 so that its tip is located 30 to 40 mm below the cutting edge of the disc cutter 2. The moment the wire 29 is cut, the board 2
Compressed air of, for example, about 4 kg/cm ² is blown from the lower side of 7 to temporarily correct the downward warpage. The air nozzle 97 is made of an L-shaped pipe, and a set bolt 9 is attached to the rear guide shaft 7 for rotation, left/right movement, and positioning.
The nozzle holder 101 is inserted into and supported by a nozzle holder 101 which is fitted as possible with 9 or the like. The nozzle holder 101 is provided with a chuck 103 that allows the position of the nozzle 97 to be set, providing a mechanism that allows the position and direction of the nozzle 97 to be adjusted freely.

In the above embodiment, the carrier 49 is connected to the vertical rod 5.
1, 53 and horizontal bars 55, 57 are used, but one end is fixed to both ends of either one of the vertical bars 51 or 53, with the horizontal bars 55, 57 parallel to each other, It is formed into a U-shape with an open end, and both ends of the other vertical rod 53 or 51 are connected to the horizontal rod 5.
The carrier 49 can also be accommodated in a horizontally adjustable manner between 5 and 57 and fastened with a set bolt 65 in a horizontally adjustable manner, and the function of the carrier 49 is completely the same as that of the illustrated example.

<Effects of the invention> In the carrier device of the present invention constructed as described above, the two vertical rods slide along the front and rear horizontal rods and can be set at any position. The width can be changed. Therefore, it is possible to use both the carrier guide and the substrate guide, and there is no need for a separate carrier guide, so the mechanism on the cutter device is simple, and the cost and space on the device can be saved.

In addition, there is no need to attach or remove the board as required with conventional carriers, and the carrier can be easily equipped with board engagement attachments and board straightening devices. It has the advantage of being able to be carried out while

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the overall structure of the operating table of the lead wire cutter according to the present invention, Fig. 2 is an exploded perspective view of a carrier attached thereon, and Fig. 3 is a part showing the structure of the above operating table. The sectional front view, Fig. 4 is also a partially sectional side view, and Fig. 5 is a partially sectional side view.
The figure is an explanatory front view showing a deformed state of the printed circuit board. 1: Main body, 2: Disk cutter, 3: Table,
5: bearing, 7: guide shaft, 9: support guide, 11: set bolt, 13, 15: rail, 17: guide section, 19: running surface, 21: rail body, 23: board guide surface, 25: guide plate,
27: Board, 29: Lead wire, 31: Guide housing recess, 33: Holding guide, 35: Long hole, 37:
Set screw, 39: Recess, 41: Safety cover, 41
a: Fixed cover, 41b: Movable cover, 43: Screw, 45: Slit, 47: Screw, 49: Carrier, 51, 53: Vertical rod, 55, 57: Horizontal rod, 5
9, 61: Frame piece, 63: Slit, 65:
Set bolt, 67: Bracket, 69: Guide roller, 71: Bracket, 73: Support roller,
75: Bracket, 76: Stopper, 77: Set bolt, 79: Attachment, 80: Slit, 82: Bolt, 83: Guide rod, 85: Slider, 87: Slide arm, 89: Set bolt, 91: Stopper, 93: Rod hole , 9
5: rod, 97: air nozzle, 99: set bolt, 101: nozzle holder, 103: chuck.

Claims (1)

[Scope of utility model registration request] A carrier 49 for moving the board 27 that runs along the carrier guide is attached to a carrier guide that also serves as a board guide and is made of a plurality of parallel rails or guide rods, and a cutter 2 is attached to the protruding surface of the lead wire 29 of the board 27. In the mechanism in which the carrier 49 is installed along the carrier guide, a plurality of vertical rods 51, 5 are installed.
3, and two horizontal rods 55, 57 which are fixed perpendicularly to either end of the vertical rods 51, 53 and form a slit 63 along the longitudinal direction. , 53 and the horizontal rods 55, 57 are parallel to each other, and the interval between the vertical rods 51, 53 is freely adjusted and fixed within the length of the slit 63. A carrier device in which one or both ends of the two are connected to the horizontal rods 55, 57, and the two ends are removably fastened with a set bolt 65 through the slit 63.