JP7397369B2 - fiber cable cutting equipment - Google Patents

Description

The present invention relates to a fiber cable cutting device, and more particularly to a fiber cable cutting device for cutting an end portion of a fiber cable.

Fiber cables are primarily used to transmit signals between boards. Furthermore, since the fiber cable is used by inserting its end into a connector on a board, it is necessary to cut the end with high precision.

Patent Document 1 discloses an example of a fiber cable cutting device. This cutting device includes a conveyance means for sending out a fiber cable, and a cutting blade for cutting the fiber cable, and while the fiber cable is fed by the conveyance means, the end portion of the fiber cable is cut by the cutting blade.

Japanese Patent Application Publication No. 2010-160207

On the other hand, apart from the fiber cable cutting device disclosed in Patent Document 1, it is conceivable to apply a cutting device such as a dicing device or a slicer that cuts a work such as a semiconductor wafer to the fiber cable cutting device.

Here, the above-mentioned cutting device generally includes a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and and a table on which cutting feed in the X direction is performed.

However, when a cutting device with such a configuration is applied as a fiber cable cutting device, the following problems must be solved as the workpiece is changed from a plate-like workpiece to a long fiber cable. There is a need.

If the part of the fiber cable to be cut is fixed to the table of the cutting equipment and the other end of the fiber cable is placed outside the cutting equipment, when the table is fed for cutting in the X direction, the table will not move. This causes the fiber cable to sag or twist. When such a phenomenon occurs, a tensile or twisting force is applied to the cut end of the fiber cable, which is the processed end, resulting in a problem in that the processing accuracy by the blade deteriorates and the processing quality deteriorates.

The above problem can be solved by placing the entire length of the fiber cable on the table of the cutting device, but this is difficult when the length of the fiber cable exceeds, for example, 10 meters.

The present invention has been made in view of the above circumstances, and provides a fiber cable cutting device that fixes the processed portion of the fiber cable to a table and cuts the processed portion of the fiber cable with a blade while moving the table. An object of the present invention is to provide a fiber cable cutting device that can improve the processing quality of fiber cables.

In order to achieve the object of the present invention, the fiber cable cutting device of the present invention includes a table on which a portion of the fiber cable to be cut is fixed and movable in a first horizontal direction; a blade having a rotation axis in a second direction orthogonal to the table; and a fixing part that is arranged at a position spaced apart from the table in the second direction and fixes a part to be fixed of the fiber cable. A fiber cable cutting device that cuts a part to be cut with a rotating blade while moving a table in a first direction, the fiber cable cutting device being provided between the table and a fixed part, the part to be cut and the part to be fixed of the fiber cable. The support member includes a support member that supports the cable area from the vertically lower side while slidably supporting the cable area between the cable area in the first direction, and the support member is configured to separate the table from the fixed part when viewed from the second direction. It is bent vertically downward along the first direction so as to approach the table.

In one aspect of the present invention, it is preferable that the support member has an adjustment mechanism that adjusts the position in a third direction orthogonal to the first direction and the second direction.

In order to achieve the object of the present invention, the fiber cable cutting device of the present invention includes a table on which a portion of the fiber cable to be cut is fixed and movable in a first horizontal direction; a blade having a rotation axis in a second direction orthogonal to the table; and a fixing part that is arranged at a position spaced apart from the table in the second direction and fixes a part to be fixed of the fiber cable. A fiber cable cutting device that cuts a part to be cut with a rotating blade while moving a table in a first direction, the fiber cable cutting device being provided between the table and a fixed part, the part to be cut and the part to be fixed of the fiber cable. a support member that receives and supports the cable area from the vertically lower side while slidably supporting the cable area between the cables in the first direction; a moving mechanism that moves the support member vertically downward and vertically upward; When viewed from the direction, the support member is moved vertically downward to move closer to the table as the table moves away from the fixed part, and supported to move away from the table as the table approaches the fixed part. and a control unit that controls the moving mechanism to move the member vertically upward.

According to the present invention, the processing quality of fiber cables can be improved.

A front view of a fiber cable cutting device according to a first embodiment of the present invention Left side view of the fiber cable cutting device shown in Figure 1 A perspective view of the fiber cable cutting device shown in Figure 1 Left side view of a fiber cable cutting device according to a second embodiment of the present invention

Hereinafter, preferred embodiments of a fiber cable cutting device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a fiber cable cutting device 10 according to a first embodiment of the present invention, FIG. 2 is a left side view of the fiber cable cutting device 10 shown in FIG. It is an overall perspective view. The X direction shown in FIGS. 1 to 3 is the first direction in the horizontal direction, and refers to the moving direction of the table 16, which will be described later. Further, the Y direction refers to a second direction orthogonal to the X direction among the horizontal directions. Furthermore, the Z direction is a vertical direction, and refers to a third direction orthogonal to the X direction and the Y direction.

In the embodiment, a strip member 12 made of a plurality of fiber cables is illustrated as the fiber cable. The strip member 12 has, for example, 100 fiber cables each having a diameter of 200 μm, and its width W (see FIG. 3) is about 80 mm. In addition, in FIGS. 1 to 3, the size of the band-shaped member 12 is exaggerated.

The fiber cable cutting device 10 is, for example, a dicing device that cuts a workpiece such as a semiconductor wafer, and has a configuration in which a portion to be cut 12A, which is a processed end of the strip member 12, is fixed. It has a table 16 and a blade 18 that cuts the cut portion 12A of the strip member 12 in the width direction. Further, as unique structural members, it has a fixing part 20 that fixes the fixed part 12B of the strip member 12, and a guide bar 22 that supports the strip member 12. This guide bar 22 is an example of a support member that is a component of the present invention.

The table 16 has a disk shape, for example, and has a horizontally flat fixing surface 24 on its upper surface, to which the cut portion 12A of the strip member 12 is fixed. As a method of fixing the part to be cut 12A to the fixing surface 24, a method is illustrated in which the fixing surface 24 is configured as a suction surface equipped with a suction port capable of vacuum suction, and the part to be cut 12A is vacuum suctioned to the fixing surface 24. Furthermore, instead of the vacuum suction method, a method may be used in which the portion to be cut 12A is fixed to the fixing surface 24 using a mechanical structure. In the embodiment, a plate 25 made of metal or resin is removably adhered to the lower surface of the portion to be cut 12A, and the portion to be cut 12A is fixed to the fixing surface 24 via this plate 25.

The table 16 includes, at its lower part, an X movement mechanism section 26 that reciprocates the table 16 along the X direction. The X movement mechanism section 26 includes a pair of guide rails 28, 28 arranged along the X direction, and a ball screw device 30 arranged between the pair of guide rails 28, 28. According to this X movement mechanism section 26, the table 16 is moved in the X (+) direction or the X (-) direction along the pair of guide rails 28, 28 by driving the ball screw device 30 in forward or reverse rotation. be able to. By using the above-mentioned ball screw device 30 as the X movement mechanism section 26, it is possible to realize the low speed and high precision feed rate (for example, 0.02 to 0.03 mm/s) required for end face polishing. This is preferable.

Here, the position of the table 16 shown by the solid line in FIGS. 2 and 3 is the cutting start position, and the position of the table 16 shown by the two-dot chain line in FIGS. 2 and 3 is the cutting end position. It is shown. Therefore, by moving the table 16 in the X (-) direction from the cutting start position to the cutting end position using the X moving mechanism section 26, the section to be cut 12A of the strip member 12 is cut by the rotating blade 18. be able to. Further, by moving the table 16 in the X (+) direction from the cutting end position, the table 16 can be returned to the cutting start position. In FIGS. 2 and 3, cutting is performed at a position where the section to be cut 12A and the section to be fixed 12B face each other in the Y direction, that is, at a position where the section to be cut 12A and the section to be fixed 12B are closest to each other in the XYZ coordinates. Although the cutting start position is set at the starting position, the cutting starting position can be set at any position.

The blade 18 can be, for example, an electrodeposited blade in which diamond abrasive grains or CBN (cubic boron nitride) abrasive grains are electrodeposited with nickel. In addition to the electrodeposited blade, a metal resin bonded blade bonded with a resin mixed with metal powder can also be used. The blade 18 configured in this manner is connected to a spindle 32 with a built-in high-frequency motor disposed along the Y direction, and is rotated at high speed by the spindle 32 at, for example, 6000 rpm to 80000 rpm. Further, as shown in FIG. 1, the spindle 32 is attached to a Z movement mechanism section 34, and the Z movement mechanism section 34 is attached to a Y movement mechanism section 36. With this configuration, the cutting amount of the blade 18 in the Z direction is adjusted by the Z moving mechanism section 34, and the cutting position in the Y direction is adjusted by the Y moving mechanism section 36. Note that the same structure as the X movement mechanism section 26 (a structure including a guide rail and a ball screw device) can be applied to the Z movement mechanism section 34 and the Y movement mechanism section 36 as well.

The fiber cable cutting device 10 configured as described above has a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and a blade that performs index feed in the Y direction and cutting feed in the Z direction relative to the workpiece, and When the table 16 is moved between the cutting start position and the cutting end position shown in FIGS. 2 and 3, when the table 16 is moved in the direction shown in FIGS. or twisting occurs.

Therefore, the fiber cable cutting device 10 of the embodiment includes a fixing portion 20 and a guide bar 22 in order to prevent the above-mentioned hanging and twisting.

The fixing part 20 is arranged apart from the table 16 in the Y (-) direction. The fixing part 20 includes a pedestal part 38 disposed outside the table 16 and a clamp member 40 that is detachably attached to the upper surface of the pedestal part 38. By pinching 12B, the fixed portion 12B of the strip member 12 can be fixed.

The guide bar 22 is arranged along the X direction between the table 16 and the fixed part 20. The guide bar 22 supports the cable region 13 (see FIG. 1) between the cut section 12A and the fixed section 12B of the fiber cable 12 so as to be slidable in the X direction, and supports it from below in the Z direction. configured to be possible. This prevents the cable region 13 from sagging.

Here, when the guide bar is constituted by a straight rod-shaped support member along the X direction, the following problems occur. That is, the length of the cable region 13 needs to be set to a length corresponding to the position where the table 16 is farthest from the fixing part 20, that is, the position where the table 16 finishes cutting. However, if the cable area 13 is set to such a length, the excess length of the cable area 13 becomes large when the table 16 is closest to the fixing part 20, that is, when the table 16 is at the cutting start position. Since the cable region 13 becomes susceptible to twisting depending on the extra length, it is necessary to prevent twisting due to the extra length.

Therefore, in order to solve the above problem, the guide bar 22 of the embodiment is configured as follows. That is, the guide bar 22 has an upper part 22A corresponding to the cutting start position, a lower part 22B corresponding to the cutting end position, and an inclined part 22C connecting the upper part 22A and the lower part 22B. When viewed from the direction, it is bent downward in the Z direction so as to approach the table 16 along the X (-) direction in which the table 16 separates from the fixing part 20. By providing the guide bar 22 with the slope portion 22C that slopes downward in the Z direction, the length of the cable region 13 can be made shorter than the length when the above-described straight rod-shaped support member is applied. This makes it possible to shorten the extra length of the cable region 13 that occurs when the table 16 is located at the cutting start position.

By providing the guide bar 22 with such a configuration, it is possible to prevent the cable region 13 from hanging down and twisting due to the excess length, so it is possible to suppress the application of tensile or twisting force to the section to be cut 12A. can. Therefore, according to the fiber cable cutting device 10 of the embodiment, the processing accuracy by the blade 18 is good and the processing quality is improved.

Incidentally, the inclined portion 22C of the guide bar 22 has an arc shape with no corners as a whole, and the connecting portion of the upper portion 22CA and the connecting portion with the lower portion 22B also have a shape without corners. It is configured.

Next, the operation of the fiber cable cutting device 10 will be explained.

First, the table 16 is positioned at the cutting start position shown in FIGS. 2 and 3. Next, the cut portion 12A of the strip member 12 is caused to extend toward the table 16 from above the guide bar 22 and is fixed to the fixing surface 24 of the table 16. At this time, as shown in FIG. 1, the lower surface 13A of the cable region 13 is supported by the upper portion 22A of the guide bar 22 so as to be slidable in the X direction. Next, as shown in FIG. 2, the fixed portion 12B of the strip member 12 is fixed to the fixed portion 20. This completes the work of attaching the strip member 12 to the fiber cable cutting device 10.

Next, the Z movement mechanism section 34 adjusts the cutting amount of the blade 18 in the Z direction, and the Y movement mechanism section 36 adjusts the cutting position of the blade 18 in the Y direction. This completes the preparation for cutting.

Next, the table 16 is moved in the X (-) direction from the cutting start position to the cutting end position in FIGS. 2 and 3 by the X moving mechanism section 26 to start cutting the part to be cut 12A. As the table 16 moves, the lower surface 13A of the cable area 13 slides from the upper part 22A to the inclined part 22C and is supported by the inclined part 22C. Then, when the table 16 moves to the cutting end position and the cutting of the portion to be cut 12A is completed, the lower surface 13A is supported by the lower portion 22B from the inclined portion 22C.

When the cutting of the part to be cut 12A is completed, the table 16 is moved in the X (+) direction from the cutting end position to the cutting start position in order to start the next cutting. As the table 16 moves, the lower surface 13A of the cable region 13 slides from the lower part 22B to the inclined part 22C and is supported by the inclined part 22C. When the table 16 is moved to the cutting start position, the lower surface 13A is supported from the inclined portion 22C to the upper portion 22A.

Therefore, according to the fiber cable cutting device 10 of the embodiment, the guide bar 22 is provided between the table 16 and the fixed part 20, and the cable region 13 is slidably supported in the X direction by the guide bar 22, Since the cable region 13 is supported from below, it is possible to prevent the cable region 13 from hanging down during cutting. Furthermore, when viewed from the Y direction, the guide bar 22 is bent downward in the Z direction so as to approach the table 16 along the X (-) direction in which the table 16 separates from the fixing part 20. It is possible to shorten the length of the cable area 13 by the amount of extra length that occurs when the cable is located at the cutting start position. As a result, it is possible to prevent the cable region 13 from hanging down and twisting due to the excess length, and therefore it is possible to suppress the application of tensile or twisting force to the section to be cut 12A, thereby improving the machining accuracy of the blade 18. This results in better machining quality.

The guide bar 22 of the embodiment preferably includes an adjustment mechanism 50 that adjusts the position of the guide bar 22 in the Z direction, as shown in FIGS. 2 and 3.

The adjustment mechanism 50 includes a pole 52 that is erected in the Z direction on a device body 62, and a holder body 54 that is movable up and down in the Z direction along the pole 52. The holder body 54 includes a hole 56 into which the pole 52 is inserted, a pair of holders 58 that hold the X(+) side end 22D of the upper portion 22A of the guide bar 22, and a pair of holders 58 that are screwed into the holder body 54. It has a threaded portion 60 that is pressed against the pole 52.

According to the adjustment mechanism 50 configured in this way, by loosening the screw portion 60, the position of the holder main body 54 in the Z direction with respect to the pole 52 can be adjusted as shown by arrow A in FIG. With this, the position of the guide bar 22 in the Z direction can be adjusted.

By making the position of the guide bar 22 adjustable in the Z direction, it is possible to accommodate strip members 12 having different width dimensions. For example, in the case of the strip member 12 having a width dimension larger than the width dimension W shown in FIG. 3, the length in the X direction between the cutting start position and the cutting end position (also referred to as the X direction movement stroke of the table 16) needs to be set longer than in the case of the band-shaped member 12 having the width dimension W. In such a case, the height of the guide bar 22 is set higher than the position shown in FIG. Thereby, even if the belt-shaped member 12 has a width dimension larger than the width dimension W, the portion to be cut 12A can be stably cut. On the contrary, in the case of the strip member 12 having a width dimension smaller than the width dimension W, the X-direction movement stroke of the table 16 needs to be set shorter than in the case of the strip member 12 having the width dimension W. In such a case, the height of the guide bar 22 is set lower than the position shown in FIG. Thereby, even if the strip member 12 has a width smaller than the width W, the portion to be cut 12A can be stably cut.

In the guide bar 22 of the embodiment, the surface thereof is preferably coated with a self-lubricating lubricant. As a result, the frictional resistance between the lower surface 13A of the strip member 12 and the guide bar 22 can be reduced, so that the lower surface 13A slides smoothly against the guide bar 22, making it easier to cut the portion 12A to be cut. It can be implemented stably.

Further, in the embodiment, the fixing part 20 is fixed to the device main body 36, but as shown in FIG. 1, it may be configured to be rotatable about the axis B along the Z direction. According to this configuration, the direction of the fixing portion 20 can be made to follow the movement position of the table 16, so that twisting occurring in the band member 12 can be suppressed. Note that, as the rotation mechanism of the fixed part 20, a structure in which the pedestal part 38 is rotatably connected to the device main body 62 (see FIG. 3) about the axis B can be exemplified.

FIG. 4 is a left side view of the fiber cable cutting device 70 according to the second embodiment.

In the second embodiment, the guide bar 72, which is an example of a support member, has a straight bar shape, and is arranged along the X direction between the table 16 and the fixed part 20, similarly to the guide bar 22 of the first embodiment. ing.

An X(+) side end portion 72A of the guide bar 72 is fixed to a nut portion 76 that constitutes a screw device 74. The feed screw device 74 includes a motor 78, a threaded portion 80, and a nut portion 76. The threaded portion 80 is arranged along the Z direction, and the nut portion 76 is screwed into the threaded portion 80. There is. Therefore, by rotating the screw portion 80 in the forward or reverse direction by the motor 78, the nut portion 76 moves up and down in the Z direction along the screw portion 80 as shown by arrow C, so that the guide bar 72 is moved up and down in the Z direction. be able to. Note that the X (−) side end 72B of the guide bar 72 is supported by a linear guide portion 82 that supports the guide bar 72 so as to be movable in the Z direction. The linear motion guide section 82 has a pole 84 erected in the Z direction, and a movable section 86 that is slidably attached to the pole 84, and the above-mentioned end section 72B is attached to the movable section 86. There is. With this configuration, the guide bar 72 can be smoothly moved up and down in the Z direction. Note that the feed screw device 74 is an example of a moving mechanism that is a component of the present invention.

The rotation direction and rotation speed of the motor 78 of the feed screw device 74 are controlled by a control section 88. The control unit 88 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input/output interface, and the like. In the control unit 88, various programs such as a control program stored in the ROM are expanded to the RAM, and the programs expanded to the RAM are executed by the CPU, thereby controlling the motor 78 as described below to operate the guide bar. Move 72. That is, when the guide bar 72 is viewed from the Y direction, in conjunction with the movement of the table 16 away from the fixed part 20 in the X (-) direction, the guide bar 72 is moved downward in the Z direction so that the guide bar 72 approaches the table 16. move it to the side. Then, in conjunction with the movement of the table 16 approaching the fixed part 20, the guide bar 72 is moved upward in the Z direction so that the guide bar 72 is separated from the table 16.

Similarly to the first embodiment, in the second embodiment having such a configuration, while preventing the strip member 12 from hanging down during the cutting process, the cable area 13 that occurs when the table 16 is located at the cutting start position is prevented. The extra length can be shortened. As a result, it is possible to prevent the cable region 13 from hanging down and twisting due to the excess length, and therefore it is possible to suppress the application of tensile or twisting force to the section to be cut 12A, thereby improving the machining accuracy of the blade 18. This results in better machining quality. In the second embodiment, the guide bar 72 is formed into a straight rod shape, but the guide bar 72 is not limited to this, and may be of a bent type having the inclined portion 22C as in the first embodiment.

In the embodiment described above, the fiber cable cutting device 10 that cuts the strip member 12 has been exemplified. The strip member 12 may be a plurality of fibers or an aggregate of a plurality of fibers. It is preferable that such a band-shaped member 12 is integrated with a base material (not shown) at the portion to be cut 12A. Furthermore, the fiber cable cutting device 10 can also be applied as a cutting device that cuts only one fiber cable.

Further, in the above embodiment, since a dicing device is used as the fiber cable cutting devices 10 and 70, the dicing device has the following effects compared to the fiber cable cutting device as disclosed in Patent Document 1. That is, the fiber cable processing process requires a polishing process of polishing the end face with a polishing means in addition to the cutting process, but the fiber cable cutting device of Patent Document 1 is a device that only performs the cutting process, so it can improve throughput. I can't do it. On the other hand, the blade 18 applied to a dicing device generally uses a grindstone with small abrasive grains, has a high rotation speed, and can control the processing speed to a low speed, resulting in high precision. It is possible to process the workpiece. By utilizing such performance of the blade 18, it is possible to simultaneously perform the process of cutting the end of the fiber cable and the process of polishing the end face, thereby improving throughput.

DESCRIPTION OF SYMBOLS 10... Fiber cable cutting device, 12... Band member, 16... Table, 18... Blade, 20... Fixed part, 22... Guide bar, 24... Fixed surface, 26... X moving mechanism part, 28... Guide rail, 30... Ball screw Device, 32... Spindle, 34... Z moving mechanism section, 36... Y moving mechanism section, 38... Pedestal section, 40... Clamp member, 50... Position adjustment mechanism, 52... Pole, 54... Holder main body, 56... Hole section, 58...Holder, 60...Screw part, 62...Device main body, 70...Fiber cable cutting device, 72...Guide bar, 74...Feed screw device, 76...Nut part, 78...Motor, 80...Screw part, 82...Linear motion Guide part, 84... Pole, 86... Movable part, 88... Control part

Claims (2)

a table on which a portion of the fiber cable to be cut is fixed and movable in a first horizontal direction;
a blade having a rotation axis in a second direction perpendicular to the first direction in the horizontal direction;
a fixing part that is arranged at a position spaced apart from the table in the second direction and fixes the fixed part of the fiber cable;
A fiber cable cutting device that cuts the part to be cut with the rotating blade while moving the table in the first direction with respect to the blade and the fixed part,
provided between the table and the fixing section, from below in the vertical direction with the cable region between the section to be cut and the section to be fixed of the fiber cable being slidably supported in the first direction; A fiber cable cutting device having a support member for receiving and supporting. The fiber cable cutting device according to claim 1, wherein the support member has an adjustment mechanism that adjusts a position in a third direction perpendicular to the first direction and the second direction.

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