JP3484799B2 - Drill bit selective feeder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drill bit selecting / supplying device for selecting a drill bit used for drilling a printed wiring board and supplying the selected drill bit to a drilling device. .

[0002]

2. Description of the Related Art A printed wiring board is provided with a large number of holes for the purpose of circuit continuity and component mounting. This hole is formed by die punching or drilling, but in the case of a printed wiring board made of a laminated plate of a glass cloth base material, drilling is performed exclusively by drilling. As a drilling device for drilling a hole in a printed wiring board, a drill bit is mounted corresponding to the hole provided in the printed wiring board, and NC control is performed to automatically drill a hole in the printed wiring board. A drilling machine that is capable of being used.

When the drill bit 1 is supplied to this drilling machine, for example, as shown in FIG.
A drill bit 1 is provided in each bit insertion recess 21 by using a bit transport container 5 which is formed by opening 50 bit insertion recesses 21 arranged in a grid of 0 rows × 5 rows in a grid pattern.
Is carried out by transporting the bit transport container 5 to the perforating apparatus in a state where it is inserted and housed. Here, the number of holes to be provided and the diameter of the holes to be provided differ depending on the type of printed wiring board, and the drill bit 1 having a drilling diameter corresponding to the diameter of the holes provided to the printed wiring board is provided to the printed wiring board. It is necessary to store the bit transport container 5 in the number corresponding to the number of holes. For example, there are 15 drill bits 1 having a hole diameter of 0.50 mm, 20 drill bits 1 having a hole diameter of 0.55 mm, and 15 drill bits 1 having a hole diameter of 0.60 mm. It is necessary to accommodate the required number of drill bits 1 having a drilling diameter in the bit transport container 5 and transport them to the drilling apparatus.

On the other hand, the drill bit 1 is housed in a bit magazine 2 formed by arranging 10 bit storage recesses 22 having an open top surface as shown in FIG. Can be obtained from the company. When a hole is formed in a printed wiring board having a glass cloth as a base material with the drill bit 1, the glass cloth has a high hardness, so that the tip of the cutting portion 23 of the drill bit 1 is easily worn and a predetermined number of holes are formed. Although the sharpness is poor, the sharpness can be recovered by polishing the tip of the cutting portion 23 and can be reused. For example, if the drill bit 1 is new, the sharpness is deteriorated by drilling 3000 holes, but it can be reused by polishing the tip of the cutting portion 23. Further, if the drill bit 1 is ground once, the sharpness becomes poor by drilling 2000 holes, and the tip of the cutting portion 23 can be reground and reused. For example, by drilling 1000 holes, the sharpness becomes poor, and even if this drill bit 1 is polished, it cannot be reused and is discarded. As described above, as the drill bit 1, there are a new one obtained from the drill manufacturing company and a polished regenerated product obtained from the drill remanufacturing company. It will be obtained in a state where it is inserted in the place 22 and housed. It should be noted that each bit magazine 2 accommodates 10 pieces of the same drilling diameter in a line.
All of the books are new, single-polished or double-polished.

For accommodating a predetermined number of drill bits 1 having a predetermined hole diameter in the bit transport container 5, the conventional method is as follows.
A large number of bit magazines 2 accommodating drill bits 1 of various drilling diameters are lined up on a work table, and the number of required bits from the bit magazine 2 in which the drill bits 1 of the required drilling diameters are stored manually by the operator. Remove the drill bit 1 each,
This drill bit 1 is inserted into the bit insertion recess 21 of the bit transport container 5, and thus the bit transport container 5 accommodating the drill bit 1 is manually sent to the punching device. Was there.

In the drill bit 1, the length of the cutting portion 23 can be reduced by polishing the tip of the cutting portion 23 as shown in FIG.
It becomes shorter from L _{1 in} (a) to L _{2 in} FIG. 16 (b). For this reason, when the drill bit 1 is mounted on the drill chuck 24 that is driven to rotate in the drilling machine, the dimension of the drill bit 1 protruding downward from the drill chuck 24 becomes shorter as the length of the cutting portion 23 becomes shorter. Therefore, the dimension L of the drill bit 1 protruding downward from the drill chuck 24 is not constant, which may cause a problem in the accuracy of drilling. Therefore, as shown in FIGS. 17A and 17B, the ring 11 is fitted and attached to the outer periphery of the shank 10 of the drill bit 1 at a position at a constant distance L ₃ from the tip of the cutting portion 23. There is. That is, this ring 11 is the bit insertion recess 21 of the bit transport container 5.
The drill bit 1 is accommodated in the bit insertion recess 21 of the bit transport container 5 so as to be engaged with the engagement recessed step portion 26 formed at the opening edge of the drill bit 1. Even if the lengths L ₁ and L ₂ of the
The height L ₄ from the lower surface of the transport container 5 at the tip of the ring is the ring 11.
It is made to be constant based on. Then, the bit transport container 5 is supplied onto the work table 25 of the punching apparatus, and the drill chuck 24 is moved down to a set constant height as shown in FIGS. By chucking the shank 10 of the drill bit 1, when the drill bit 1 is mounted on the drill chuck 24, the dimension L of the drill bit 1 protruding downward from the drill chuck 24 becomes constant. By using the ring 11 in this way, the drill bit 1 can be mounted on the drill chuck 24 so as to project with a constant dimension L even if the length of the cutting portion 23 is different.

[0007]

However, if the operator manually inserts the drill bit 1 into the bit transport container 5 to accommodate the drill bit 1 as described above, a large number of workers are required and the bit transport container 5 is accommodated. It took a long time to house the drill bit 1 and had a problem in production efficiency.

The present invention has been made in view of the above points, and provides a selection device for a drill bit capable of automatically selecting and supplying a drill bit without manual work of an operator. The purpose is.

[0009]

In a selective supply device for a drill bit according to claim 1 of the present invention, a bit magazine 2 accommodating a plurality of drill bits 1 having the same drilling diameter has different drilling diameters. A plurality of bit supply units 3 are arranged in parallel, and a plurality of bit supply units 3 are arranged above the bit supply units 3 so as to be movable and driven along the parallel direction of the bit magazines 2. Of the drill bit 1 having a hole diameter, a bit supply tool 6 for supplying the drill bit 1 taken out by the bit removal tool 4 to the bit transport container 5 and accommodating it, and a predetermined number of drill bits 1 And a bit transport tool 7 for sending the bit transport container 5 containing the
When the bit supply table 3 is formed with an inclined upper surface,
In the tilt direction where the bit magazine 2 is placed on
A plurality of long slide grooves 30 are arranged in a row along the inclination direction.
At the front end position above the bit supply table 3.
A stopper plate 37 is provided along the arrangement direction of each slide groove 30.
Is the front end drill bit housed in the bit magazine 2.
Shank 10 protruding upward from the bit magazine 2 of 1
Is arranged so as to be abutted and locked .

The invention of claim 2 further comprises an empty magazine stocker table 8 in which the bit magazine 2 which has been emptied by taking out the drill bit 1 is transferred from the bit supply table 3 and arranged in parallel. The bit transfer tool 7 also serves as means for returning the bit transfer container 5 containing the drill bit 1 that has been used in the drilling processing device from the drilling processing device, and the bit supply tool 6 also returns the returned bit transfer container. 5 also serves as a means for taking out the drill bit 1, and is arranged above the empty magazine stocker base 8 so as to be movable and movable along the parallel direction of the empty bit magazines 2, and the taken drill bit 1 is punched. It is characterized in that it is provided with a bit return tool 9 for returning and storing it in an empty bit magazine 2 according to the diameter.

Further, according to the third aspect of the invention, of the drill bits 1 in the bit transport container 5 returned from the punching device, the reusable drill bit 1 taken out by the bit supply tool 6 is temporarily used. Reusable bit storage container 1
4 is arranged near the bit supply tool 6.

[0012]

According to the invention of claim 1, the drill bit 1 having a predetermined drilling diameter is taken out from the plurality of bit magazines 2 arranged on the bit supply table 3 by the bit take-out tool 4, and the taken-out drill bit is taken out. By supplying 1 to the bit transport container 5 with the bit supply tool 6 and storing it, the drill bit 1 can be automatically accommodated in the bit transport container 5 without manual work by an operator, and this drill The drill bit 1 can be automatically supplied to the drilling device by sending the bit carrying container 5 containing the bit 1 to the drilling device by the bit carrying tool 7.

According to the second aspect of the invention, the bit transport container 5 containing the drill bit 1 used in the drilling device is returned by the bit transport tool 7, and the returned bit transport container 5 is returned. Taking out the drill bit 1 by the bit supplying tool 6, returning the taken out drill bit 1 by the bit returning tool 9 to the empty bit magazine 2 arranged on the empty magazine stocker base 8 according to the hole diameter, and accommodating it. The used drill bit 1 can be automatically returned to the bit magazine 2.

According to the third aspect of the invention, the drill bit 1 in the bit transport container 5 returned from the drilling device.
Among them, the reusable drill bit 1 can be temporarily stored in the reusable bit storage container 14 without returning to the empty bit magazine 2 of the empty magazine stocker base 8.

[0015]

EXAMPLES The present invention will be described in detail below with reference to examples. Figure 1
Shows the whole of the device according to the present invention, and the bit supply table 3 is formed by inclining the upper surface thereof. As shown in FIG. 2 and FIG. The long slide grooves 30 are provided in a plurality of rows, for example, 150 rows along the inclination direction (in FIG. 2 and FIG. 3, the slide grooves 30 are shown with the number of rows omitted for convenience). The front end of each slide groove 30 is opened as shown in FIG.
A stopper plate 37 is disposed above the bit supply table 3 at the front end thereof along the arrangement direction of the slide grooves 30.

An empty magazine stocker base 8 is arranged so as to be continuous with the lower end of the bit supply base 3 at the same angle as the inclination angle of the upper surface of the bit supply base 3. The empty magazine stocker base 8 is also provided with the same number of stock grooves 31 as the slide grooves 30 so as to open upward. The rear end of each stock groove 31 is opened so as to match the opening of the lower end of the slide groove 30 as shown in FIG. 3, and the stopper wall 32 provided at the front end of the empty magazine stocker base 8 is used. The front end of each stock groove 31 is closed. Further, the lower surface of each stock groove 31 is opened over almost the entire length, and a lift plate 33 is arranged along the arrangement direction of the stock grooves 31 on the lower surface of the upper end portion of the empty magazine stocker base 8 to provide each stock groove. The opening of the lower surface of the rear end portion of 31 is closed. The stock grooves 31 are formed on the lower surface of the empty magazine stocker base 8 except the lift plate 33.
A conveyor belt 34 is provided so as to close the opening on the lower surface of the. The conveyor belt 34 may be provided so as to correspond to the plurality of stock grooves 31, but each stock groove 31
It is preferable to provide the conveyor belts 34 corresponding to the above, and each conveyor belt 34 is driven independently. In FIG. 3, 35 is a conveyor belt 3.
The drive wheels 4 and 36 are driven wheels.

Further, the empty magazine stocker base 8 is formed so as to be vertically rotatable about a driven wheel 36 of the conveyor belt 34 as a rotation axis, and is inclined as shown by the solid line in FIG. Like the imaginary line, it can be rotated between horizontal states. The lift plate 33 is attached to and supported by the upper end of the rod 41 of the lifting cylinder 40 so as to be vertically rotatable. By operating the lifting cylinder 40 to move the rod 41 up and down, the lift plate 33 is moved in three steps. It can be raised and lowered. The lift plate 33 is located at the uppermost stage when the empty magazine stocker base 8 is inclined as shown by the solid line in FIG.
At this time, the lift plate 33 is also inclined at the same angle as the inclination of the empty magazine stocker base 8. Then positioned in the middle lift plate 33 when the air magazine stocker base 8 is rotated in a horizontal state as the imaginary line in FIG. 4 is lowered, at this time has become even horizontal state lift plate 3 3. When the lift plate 33 is further lowered to the lower position, the chute plate 4 inclined below the empty magazine stocker base 8 is arranged.
It reaches the position of the second upper portion, the lift plate 3 3 at this time is designed to be inclined at the same angle as the chute plate 42. As shown in FIG. 4, a positioning cylinder 43 is horizontally arranged inside the bit supply table 3, and a tip end of a rod 44 provided on the positioning cylinder 43 and protruding toward the empty magazine stocker table 8 side. A positioning plate 47 is provided. The positioning cylinder 43 may be provided so as to correspond to the plurality of stock grooves 31, but it is preferable that the positioning cylinder 43 be provided so as to correspond to each stock groove 31. It is designed to be driven independently.

Above the boundary between the bit supply table 3 and the empty magazine stocker table 8, an X-axis drive rail 45 formed of a cylinder device or the like is arranged along the boundary and the X-axis drive is carried out. This X-axis drive rail 45 on the rail 45
A Y-axis drive rail 46 that is driven to travel along is provided. The Y-axis drive rail 46 is also formed by a cylinder device or the like, and the take-out portion 46 a located above the bit supply table 3 is inclined at the same angle as the upper surface of the bit supply table 3.
And a horizontal return portion 46b located above the empty magazine stocker base 8. On the side surface of the Y-axis drive rail 46, the bit take-out tool 4 is attached to the take-out section 46a, and the bit return tool 9 is attached to the return section 46b so as to be freely driven along the Y-axis drive rail 46. The X-axis drive rail 46 and the Y-axis drive rail 47 constitute an orthogonal two-axis robot 54 that can freely move the bit take-out tool 4 and the bit return tool 9 in the XY directions.

FIG. 5 shows an example of the bit take-out tool 4, which is a rotary cylinder 48 which is mounted on a Y-axis drive rail 46 so as to be freely driven to run, and a support body which is vertically driven by the rotary cylinder 48. Four
9 and a pair of lifting cylinders 50 provided on the support 49
And the chuck tool 51 provided at the lower end of the lifting cylinder 50 form the bit mounting tool 4. The chuck tool 51 includes a pair of chuck claws 52 and a chuck claw 52.
And a chuck driving body 53 for driving the rotation in the vertical direction. The bit return tool 9 having the same structure as that shown in FIG. 5 can also be used.

A work table 56 is provided on one side of the bit supply table 3 and the empty magazine stocker table 8, and the bit supply table 3 is placed on the work table 56.
A take-out bit temporary storage container 57 at a position below the moving path of the bit take-out tool 4 and a side of the empty magazine stocker table 8 at a position below the moving path of the bit returning tool 9 at a position below the moving path of the bit return tool 9. 58 are arranged as shown in FIG. The take-out bit temporary storage container 57 and the return bit temporary storage container 58 are fixedly provided at predetermined places, respectively, and are formed by providing a plurality of temporary storage recesses 57a and 58a each having an open top surface. There is.

On the work table 56, a bit transfer tool 7 formed by a belt conveyor is arranged in parallel with the bit supply table 3 and the empty magazine stocker table 8. A ring attachment 12 is provided at a position between the bit transport tool 7 and the take-out bit temporary storage container 57, and a ring is removed at a position between the bit transport tool 7 and the return bit temporary storage container 58. A tool 13 is provided. The ring attaching tool 12 and the ring removing tool 13 will be described in detail later.

A bit transfer tool 61 as shown in FIG. 6 is provided on the work table 56 at a position between the ring attaching tool 12 and the ring removing tool 13. In the bit transfer tool 61, a base of a rotary arm 64 is horizontally pivotally attached to an upper end of a rod 63 that is vertically driven of an elevating cylinder 62, and a rotary cylinder 65 is provided at a tip of the rotary arm 64. The cylinder 65 is formed by attaching a clamp tool 66 which is rotationally driven in the vertical direction by the rotary cylinder 65. A tip of a rod 69 of a shift cylinder 68 is horizontally rotatably pivotally attached to a tip of an operating rod 67 projecting from a rear end of a pivot arm 64, and the rod 63 is pivoted by moving the rod 69 forward and backward. As a shaft, the rotating arm 64 can be horizontally rotated. Further, the clamp tool 66 is formed by including a fixed claw 70 and a movable claw 71 which is moved in a direction to move toward and away from the fixed claw 70, and the movable claw 71 is moved by a cylinder device incorporated in the clamp tool 66. By moving the fixed claw 7
It is possible to clamp between 0 and the movable claw 71.

Further, as shown in FIGS. 1 and 2, reusable bits are accommodated on the work table 56 at a position opposite to the bit supply table 3 and the empty magazine stocker table 8 with the bit carrier 7 interposed therebetween. A plurality of containers 14 are provided.
The reusable bit storage container 14 is, for example, 10 columns long × 5 columns wide
It is formed by forming 50 bit insertion recesses 72, which are arranged in a grid in a row, on the upper surface. The reusable bit storage container 14 is fixedly provided at a predetermined place.

Above the bit transfer tool 7, there is an orthogonal 2 which is composed of an X-axis drive rail 75 and a Y-axis drive rail 76.
An axis robot 77 is provided. The X-axis drive rail 75 is formed of a cylinder device or the like, and a Y-axis drive rail 76 that is driven to travel along the X-axis drive rail 75 is provided on the X-axis drive rail 75. The Y-axis drive rail 76 is also formed by a cylinder device or the like, and the bit supply tool 6 is attached to the side surface of the Y-axis drive rail 76 so as to be movable along the Y-axis drive rail 76. The orthogonal two-axis robot 77 formed by the X-axis drive rail 75 and the Y-axis drive rail 76 causes the bit supply tool 6 to move the bit feeding tool 7, the ring mounting tool 12, the ring removing tool 13, and the reusable bit storage container 14. It can be freely moved in the X-Y direction between. Further, the bit supply tool 6 may have the same structure as that shown in FIG.

As shown in FIG. 15, the bit magazine 2 is formed by arranging ten bit accommodating recesses 22 having an open upper surface in a row, and the drill bit 1 with its cutting portion 23 facing upwards. By inserting the shank 10 into the bit accommodating recess 22 such that the tips of the shank 23 and the shank 10 project upward, each of the bit magazines 2 accommodates 10 drill bits 1. As described above, each bit magazine 2 contains the same drill bit 1 with the same drilling diameter, and all 10 of these are new or once-polished. It is a double-polished product. And, a bit magazine 2 accommodating a drill bit 1 of various drilling diameters is prepared, and a bar code 81 is written on the outer surface of each bit magazine 2,
The bar code 81 can read the drilling diameter of the stored drill bit 1 and the history data of whether it is a new product, a single polishing product or a double polishing product.

The bit magazine 2 is supplied to each slide groove 30 of the bit supply table 3, and the same slide groove 30 is supplied with the bit magazine 2 of the drill bit 1 having the same drilling diameter and history. I am doing it.
Which bit magazine 2 is supplied to which slide groove 30 is input and stored in the control personal computer 82 by reading the barcode 81. Since the upper surface of the bit supply table 3 is inclined, the bit magazine 2 slides along the slide groove 30, and a plurality of bit magazines 2 are connected to each slide groove 30 as shown in FIG. Can be accommodated. Since 150 slide grooves 30 are provided on the bit supply table 3, 150 kinds of drill bits 1 are provided on the bit supply table 3
8 to 10 in each slide groove 30.
The individual bit magazines 2 can be accommodated in a row, and 80 to 100 drill bits 1 can be supplied to each slide groove 30. And Figure 7
As shown in (a), the shank 10 protruding upward from the bit magazine 2 of the drill bit 1 at the front end housed in the bit magazine 2 at the front end is abutted and locked by the stopper plate 37, so that the bit magazine 2 is The slide groove 30 is regulated so as not to slide further forward. Therefore, in each slide groove 30, of the drill bits 1 housed in the bit magazine 2, the drill bit 1 located at the front end is positioned in the position of the stopper plate 37.

The drill bit selection and supply device according to the present invention formed as described above is operated while being controlled by the control personal computer 82. Then, the diameter of the holes and the number of the holes to be formed in the printed wiring board by the punching device (not shown) are stored in the data server 83 as NC coordinate data, and the data server 83 is connected to the control personal computer 82 by the LAN. The data of the diameter of the holes and the number of the holes provided on the printed wiring board are input from the data server 83 to the control personal computer 82, and the number of drill bits from which bit magazine 2 is supplied to the bit supply table 3. The control personal computer 82 calculates and determines whether 1 is extracted and supplied. At this time, as described above, the drill bit 1 has a different life (the number of holes that can be drilled) depending on the history of whether it is a new product, a single-polishing product, or a double-polishing product. The history of the drill bit 1 to be used so that the minimum number of drill bits 1 is enough depending on the number of holes to be drilled, whether the number of holes to be drilled and the service life are exactly the same, and so on, according to preset conditions. Is also calculated and determined.

Then, while controlling by the control personal computer 82, the drill bit 1 for which the operation is determined is supplied to the bit supply table 3
The drill bits 1 are taken out from the predetermined bit magazine 2 by the bit take-out tool 4 by operating the orthogonal two-axis robot 54 first and sequentially taking out and picking them out and feeding them to the bit carrying container 5. That is, Y is controlled along the X-axis drive rail 45 while being controlled by the control personal computer 82.
By moving the shaft drive rail 46, the bit take-out tool 4 is positioned above the predetermined bit magazine 2.
At this time, a pair of chucking tools 51 provided on the bit extracting tool 4
This operation time is shortened by moving the closer chuck tool 51 above the bit magazine 2. Further, the position of the bit take-out tool 4 is adjusted by moving the bit take-out tool 4 along the Y-axis drive rail 46 in advance, and the chuck tool 51 of the bit take-out tool 4 is the frontmost drill bit 1 of the bit magazine 2.
And the chuck 51 is tilted so as to be perpendicular to the tilt of the upper surface of the bit supply table 3 by operating the rotary cylinder 48. Then, the lifting cylinder 50 of the chuck tool 51 of the bit extracting tool 4 is operated to lower the chuck tool 51 and the chuck claws 52 are operated, as shown in FIG.
As shown in FIG. 5, the upper end of the shank 10 of the drill bit 1 at the front end of the bit magazine 2 is gripped by the chuck tool 51, and then the lifting cylinder 50 is operated to operate the chuck tool 5.
By raising 1 the drill bit 1 can be pulled out of the bit magazine 2 and taken out.

After the drill bit 1 has been removed from the bit magazine 2 and taken out in this way, the Y-axis drive rail 46 moves along the X-axis drive rail 45 toward the work table 56, and the take-out bit temporary storage container 57 is placed in the container 57. The bit take-out tool 4 is moved to above the temporary placement recess 57a, the rotary cylinder 48 is operated to rotate the chuck tool 51 in the vertical direction, and the lifting cylinder 50 is operated to lower the chuck tool 51. Then, the drill bit 1 can be inserted into the temporary placing recess 57a to accommodate the drill bit 1 in the take-out bit temporary placing container 57. Drill bit 1 whose operation has been determined by repeating the above operation
Can be sequentially selected from the bit supply table 3 and taken out to be sequentially accommodated in the temporary placing recess 57a of the taken out bit temporary placing container 57.

When the drill bit 1 is taken out from the bit magazine 2 as described above, as shown in FIG. 7 (b),
The shank 10 of the next drill bit 1 is the stopper plate 37.
The bit magazine 2 slides forward along the slide groove 30 due to the inclination of the bit supply table 3 to the position where it abuts against and is locked. Then, when all the drill bits 1 are taken out from the bit magazine 2 and become empty, the stopper plate 37 no longer acts as a stopper, so that the empty bit magazine 2 is a stopper as shown by an imaginary line in FIG. 7 (b). After passing under the plate 37, it moves from the slide groove 30 of the bit supply table 1 to the stock groove 31 of the empty magazine stocker table 8 as shown in FIG. The bit magazines 2 thus emptied are sequentially moved to the empty magazine stocker table 8 and stocked in the stock groove 31 of the empty magazine stocker table 8.

The drill bits 1 housed in the take-out bit temporary storage container 57 are arranged in the order in which they are supplied from the bit supply table 3.
It is transferred to the ring attachment 12 by the bit transfer tool 61. The ring fitting 12 has a central shaft 86, as shown in FIG.
Mounting board 87 that is intermittently rotated horizontally by
The mounting board 87 is provided with five mounting holes 88 at regular intervals around the mounting board 87 on both upper and lower sides. As shown in FIG. 10, the mounting hole 88 is formed by providing a ring locking hole portion 89, a bit locking hole portion 90, and a bit insertion hole portion 91, and the inner diameter of the bit locking hole portion 90. Is approximately the same as the diameter of the shank 10 of the drill bit 1, and the inner diameter of the bit insertion hole 91 is smaller than the diameter of the shank 10 of the drill bit 1 and larger than the diameter of the cutting portion 23. is there. Further, a ring feeder 92 is arranged near the mounting board 87, and the ring 11 is sequentially supplied to the mounting hole 88 at the position shown in FIG. 9A by a suction transfer device in accordance with the rotation of the mounting board 87, The ring 11 is fitted and locked in the ring locking hole 89. In the drill bit 1, the diameter of the cutting portion 23 is formed in various sizes according to the diameter of the hole,
Since the diameter of the shank 10 is constant irrespective of the diameter of the cutting portion 23, the same ring 11 is used regardless of the type of the drill bit 1.

On the other hand, the drill bit 1 housed in the take-out bit temporary storage container 57 is taken out by the bit transfer tool 61 shown in FIG. 6, and the direction of the drill bit 1 is turned upside down so that the cutting portion 23 faces downward. In this state, it is supplied to the mounting board 87 of the ring mounting tool 12. That is, first, the lifting cylinder 62 is operated to move the rotating arm 6
4, the shank 10 of the drill bit 1 housed in the take-out bit temporary storage container 57 is sandwiched between the fixed pawl 70 and the movable pawl 71, and then the lifting cylinder 62 is operated again. Then, the rotating arm 64 is raised and the clamp tool 66 is moved upward to take out the drill bit 1 from the take-out bit temporary storage container 57. Next, by operating the shift cylinder 68 to rotate the rotating arm 64, the drill bit 1 can be transferred to above the mounting plate 87 of the ring mounting tool 12.

Here, as described above, the ring feeder 9 is used.
After the ring 11 is supplied from 2 to the mounting hole 88, the mounting plate 87 is at a position (b position in FIG. 9) where the mounting plate 87 is horizontally driven to rotate at an angle of (360/5 =) 72 °. The drill bit 1 transferred by the bit transfer tool 61 is positioned above the upper part of the drill bit. First, when the elevating cylinder 62 is operated to lower the clamp tool 66, as shown in FIG. Is inserted into the inner circumference of the ring 11 locked in the ring locking hole portion 89 of the mounting hole 88. After inserting the drill bit 1 into the ring 11 like this,
The clamp of the drill bit 1 by the clamp tool 66 is released, the bit transfer tool 61 is returned to the take-out bit temporary storage container 57 by the operation reverse to the above, and the drill bit 1 is taken out from the take-out bit temporary storage container 57 again and the ring is attached. Ingredient 12
The operation of transferring to the mounting board 87 is repeated. In addition, the drill bit 1 is directly fed from the bit supply table 3 by the bit extractor 4.
Although it is possible to bring the take-out tool to the mounting board 87, it is difficult to match the timing of the operation of the bit take-out tool 4 and the operation of the mounting board 87, so that the take-out bit temporary storage container 57 is provided between them. Operation of the bit extractor 4 and the mounting board 87
It is designed so that it is not necessary to directly adjust the operation timing of.

After the drill bit 1 is inserted into the ring 11, the mounting plate 87 is located above the mounting hole 88 at a position where it is horizontally driven to rotate at an angle of 72 ° (position C in FIG. 9). , A high-speed pressing tool 93 formed of an air cylinder or the like is provided, and a pressing rod 94 of the high-speed pressing tool 93 is provided.
The upper end of the drill bit 1 is pressed with, and the drill bit 1 is press-fitted into the inner circumference of the ring 11 as shown in FIG. With this high-speed pressing tool 93, the drill bit 1 is press-fitted at a high speed at a stretch to a predetermined depth. Further, a position at which it is horizontally driven to rotate at an angle of 72 ° from this c position (see FIG. 9).
Above the mounting hole 88 at the second position), a fine speed pressing member 95 formed by an air cylinder, a screw feeding mechanism, or the like is disposed. Press and press the drill bit 1 deeply and slowly. A detection sensor 97 formed of a contact sensor such as a limit switch or a non-contact sensor such as a photoelectric sensor is provided below the mounting board 87 below the slow pressing tool 95. When the tip of the cutting portion 23 of the drill bit 1 protrudes below the mounting plate 87 by a predetermined size when the drill bit 1 is further press-fitted with 95, the tip of the cutting portion 23 is detected by the detection sensor 97. The operation of the slow speed pressing tool 95 is stopped. In this way, even if the length of the drill bit 1 is changed by polishing the tip of the cutting portion 23,
The ring 11 can be fitted and attached to the outer periphery of the shank 10 of the drill bit 1 at a position at a constant distance L ₃ (see FIG. 17) from the tip of the cutting portion 23.

In the drill bit 1 with the ring 11 thus mounted, the bit is inserted from the mounting hole 88 at the position (e position in FIG. 9) at which the mounting plate 87 is horizontally driven to rotate at an angle of 72 °. It is taken out by the supply tool 6 and supplied to the bit transport container 5. Here, all the rings 11 are attached to the polished drill bit 1, but it is not necessary to attach the ring 11 to the new drill bit 1 (of course, the ring 11 is also attached to the new drill bit 1). It may be attached, but it is common to attach the ring 11 to all the drill bits 1). When the ring 11 is not attached in this way, the ring 11 is not supplied to the attachment hole 88 of the attachment plate 87 of the ring attachment 12, and the drill bit 1 is inserted into the attachment hole 88 at the position a.
Insert directly. Since the tip portion of the shank 10 of the drill bit 1 is locked in the bit locking hole portion 90 of the mounting hole 88 as shown in FIG. 11C, the drill bit 1 is held in the mounting hole 88. To be able to
When the mounting hole 88 holding the drill bit 1 in this way reaches the position of E, the drill bit 1 is pulled out from the mounting hole 88 by the bit supply tool 6 and supplied to the bit transport container 5. .

When supplying the drill bit 1 to the bit transport container 5 from the mounting plate 87 of the ring mounting tool 12,
First, the bit transfer tool 7 formed by the conveyor belt
The empty bit transport container 5 is transported to near the mounting plate 87 of the ring mounting tool 12. The bit transport container 5 is formed, for example, by providing 50 bit insertion recesses 21 arranged in a grid of 10 rows × 5 rows in a grid shape with the top opening. Then, the orthogonal biaxial robot 77 is operated under the control of the control personal computer 82 to move the bit supply tool 6 above the mounting hole 88 at the position indicated by the arrow in the mounting board 87, and the drill bit 1 is operated by the bit supply tool 6. Pick the upper part of the drill bit and take out the drill bit 1 from the mounting hole 88 (orthogonal 2
The operations of the axis robot 77 and the bit supply tool 6 are basically the same as the operations of the orthogonal two-axis robot 54 and the bit extraction tool 4 described above, and thus detailed description thereof will be omitted). Next, the orthogonal biaxial robot 77 moves the bit supply tool 6 above the bit transfer container 5 on the bit transfer tool 7, and the drill bit 1 is drawn in the bit insertion recess 21 at a predetermined position of the bit transfer container 5. Insert as shown in 15. By repeating this operation, the drill bit 1 having a drilling diameter or history according to a command from the control personal computer 82 is inserted into each bit insertion recess 21 of the bit transport container 5 and accommodated, and the drill bit 1 is accommodated. The bit transport container 5 which has been finished is transferred to the drilling apparatus by the bit transport tool 7 as shown in FIG.
Is sent in the direction of the arrow. A barcode 99 is written on the side surface of the bit transport container 5, and this barcode 9
The drilling diameter and history of each drill bit 1 accommodated in the bit transport container 5 are recorded by means of 9.

When the bit transport container 5 is transported to the punching apparatus in this manner, the drill bits 1 housed in the grid-shaped bit insertion recess 21 of the bit transport container 5 are arranged vertically and horizontally. , Is used for punching a printed wiring board while controlling NC in the punching device in the order according to the arrangement. Further, the drill bit 1 used in the drilling device is returned to the original bit insertion recess 21 of the bit transport container 5, and then sent back by the bit transport tool 7 in the direction of arrow T in FIG. It is conveyed to the vicinity of the removing tool 13.

As shown in FIG. 12, the ring remover 13 is
It is formed by including a removing plate 102 which is intermittently rotated horizontally in a horizontal direction by a central shaft 101, and three removing holes 10 are formed around the removing plate 102 at regular intervals.
3 are provided with openings on both upper and lower surfaces. Removal hole 103
Is formed as shown in FIG. 13 by providing a ring engaging hole portion 104 on the upper part. The ring removing tool 13 can be used to remove the ring 11 from the used drill bit 1 returned by the bit transport tool 7.

That is, first, the orthogonal two-axis robot 77 is operated while being controlled by the control personal computer 82, and the bit supply tool 6 is moved above the returned bit transport container 5.
The predetermined drill bit 1 accommodated in the bit transport container 5 is taken out by the bit supply tool 6. Next, the orthogonal biaxial robot 77 is operated to move the bit supply tool 6 above the removal board 102 of the ring removal tool 13, and the drill bit 1 is inserted into the removal hole 103 at the position shown in FIG. Drill bit 1
Since the ring 11 is fitted in the
The drill bit 1 is retained in a state of being inserted into the removal hole 103 by fitting and locking 1 into the ring locking hole portion 104.

After the drill bit 1 is inserted,
The removal hole 1 at the position (reposition in FIG. 12) where the removal board 102 is horizontally driven to rotate at an angle of (360/3 =) 120 °.
A pressing / depressing tool 105 formed of an air cylinder or the like is arranged above 03, and the upper end of the drill bit 1 is pressed by the pressing rod 106 of the extracting / pressing tool 105 to move the drill bit 1 downward from the ring 11. It is pushed out to the lower side of the removing hole 103 and is pushed out.

At this time, the bit holder 110 is arranged below the removal and pressing tool 105 and below the removal board 102. The bit holder 110 is formed as a tubular body by providing a bit holding hole 111 on the inner circumference, and a bit locking step portion 112 is formed in the middle step portion of the bit holding hole 111. And this bit locking step 1
A wide diameter air clamp hole portion 113 is formed around the bit holding hole 112 in the vicinity of 12, and the air clamp hole portion 113 can be connected to a suction device or the like to reduce the pressure inside. This bit holder 11
The reference numeral 0 is arranged on the lower side of the removing board 102 in a state of being clamped by the clamp tool 66 of the bit transfer tool 61, and as described above, the pressing rod 106 of the extraction pressing tool 105.
When the drill bit 1 is pressed with the push button and pushed out from the ring 11 and pulled out, the drill bit 1 falls below the removing machine 102, but the bit holder 11 arranged below is removed.
14 (a) is inserted into the bit holding hole 111 of 0, and the tip of the shank 10 of the drill bit 1 is locked to the bit locking step portion 112, so that the drill bit 1 holds the bit. It is held in the hole 111. After holding the drill bit 1 in the bit holding hole 111 as described above, if the inside of the air clamp hole portion 113 is depressurized,
Rotate the clamp tool 66 up and down 180 ° by the rotary cylinder 65 to move the bit holder 110 to the position shown in FIG.
Even when the drill bit 1 is turned upside down as shown in (b), the drill bit 1 does not drop due to the suction action of the air clamp hole 113. Then, by operating the bit transfer tool 61 to move the clamp tool 66 back to above the bit temporary storage container 58, and in this state, the pressure inside the air clamp hole 113 is released to drop the drill bit 1, As shown in FIG. 14C, the drill bit 1 can be housed in the temporary storage recess 58 a of the return bit temporary storage container 58 with the cutting portion 23 facing upward. The ring 11 fitted in the ring engaging hole portion 104 of the removing hole 103 has a further removing plate 102.
After rotating at an angle of 0 °, it is taken out and collected from the position of FIG. 12 by the suction transfer device.

Here, as described above, the drill bit 1 is removed by removing the ring 11 and housed in the return bit temporary storage container 58.
Are those that require polishing or are discarded. On the other hand, of the used drill bits 1 returned from the drilling machine, for example, the new drill bit 1 can be used for 3000 holes, but it is still used for 1000 holes. Just
Further, it can be used for drilling 2000 holes. Therefore, the drill bit 1 which can still be used for drilling as described above does not remove the ring 11 and the bit supply tool 6 is used to remove the bit insertion recess 71 from the bit transport container 5 to the reusable bit storage container 14 at a predetermined position. Plugged into and housed. The history of the drill bit 1 accommodated in the predetermined bit insertion recess 71 is stored in the control personal computer 82, and the drill bit 1 is stored in the bit transport container 5 next time.
At the time of performing the work of supplying, the reusable bit storage container 14 is taken out and supplied to the bit transport container 5.
Since the ring 11 is still attached to the drill bit 1, it can be directly supplied from the reuse bit storage container 14 to the bit transport container 5 by the bit supply tool 6.

The drill bit 1, which either needs to be ground for reuse or has already been ground twice and then discarded, is removed from the return bit temporary storage container 58 into an empty magazine stocker stand. It is returned to the empty bit magazine 2 stocked in 8. In order to perform the operation of returning the used drill bit 1 to the empty bit magazine 2 as described above, first, as shown by the imaginary line in FIG.
The empty magazine stocker base 8 is rotated upward with the driven wheels 36 of the conveyor belt 34 as a rotation axis to be in a horizontal state. When the empty magazine stocker base 8 rotates horizontally, the lift plate 33 also descends while being horizontal.
Since a gap is created between the lift plate 33 and the bit supply base 3 as shown by the imaginary line in FIG. 4, the rod 44 of the positioning cylinder 43 projects through this gap, and the positioning plate 47 at the tip thereof is an empty magazine. The stock groove 31 of the stocker stand 8 is located above the end of the conveyor belt 34. When the conveyor belt 34 is operated in the direction of the arrow in FIG. 8A in this state, the empty bit magazine 2 stocked in the stock groove 31 and placed on the conveyor belt 34 moves toward the positioning plate 47. , The first bit magazine 2
Comes into contact with the positioning plate 47 to perform positioning.

Then, the orthogonal two-axis robot 54 is operated while being controlled by the control personal computer 82, and the bit return tool 9 is moved above the return bit temporary storage container 58, and the temporary storage recess of the bit temporary storage container 58 is moved. The drill bit 1 accommodated in 58a is taken out (the operation of the bit return tool 9 is the same as the operation of the bit take-out tool 4, so detailed description will be omitted). Then, the orthogonal two-axis robot 54 is further operated,
The bit return tool 9 is moved to a position above the bit magazine 2 in a predetermined stock groove 31. The leading bit magazine 2 of the stock groove 31 is positioned by the positioning plate 47 as described above, and the drill bit 1 is inserted by the bit return tool 9 above the leading bit storage recess 22 of the leading bit magazine 2. It can be stored in. In this way, when the drill bit 1 is stored in one bit storage recess 22 of the bit magazine 2, the distance dimension between the adjacent bit storage recesses 22 provided in the bit magazine 2 is
When the positioning cylinder 43 is operated to retract the positioning plate 47, the bit magazine 2 is advanced and positioned by the retracted dimension of the positioning plate 47 by the conveyor belt 34, as shown in FIG. 8B. In this way, the bit magazine 2 is advanced and positioned by the distance dimension of the bit accommodating recesses 22, so that the bit accommodating recesses 22 in which the drill bit 1 is inserted and accommodated as described above are stored.
Another drill bit 1 returned by the bit return tool 9 can be inserted and stored in the bit storage recess 22 next to.

By repeating this operation, 10 drill bits 1 can be returned and stored in the bit magazine 2. When 10 drill bits 1 are stored in the bit magazine 2, positioning is further performed. Board 47
Is also retracted from above the lift plate 33, and the conveyor belt 34 is operated to move the bit magazine 2 containing the drill bit 1 into the conveyor belt 3 as shown in FIG. 8C.
4 is moved from above to above the lift plate 33. Then, the lifting cylinder 40 is operated to move the lift plate 33 to the position shown in FIG.
As described above, the bit magazine 2 accommodating the drill bit 1 is slid down onto the chute plate 42 by descending and inclining. The bit magazine 2 thus supplied to the chute plate 42 is the discharge conveyor 1 shown in FIG.
It is discharged from 16 and sent to polishing processing or disposal processing. In FIG. 1, 117 is a hand operation panel, and 118 is an alarm light.

[0046]

As described above, according to the first aspect of the present invention, a plurality of bit magazines accommodating a plurality of drill bits having the same drilling diameter are arranged side by side with a plurality of types having different drilling diameters. A bit supply table, and a bit extractor provided above the bit supply table so as to be movable and driven along the parallel direction of the bit magazine and for extracting a drill bit with a predetermined drilling diameter from a predetermined bit magazine. Since the drill bit taken out by the take-out tool is provided in the bit carrying container to be housed therein, and the bit carrying device for delivering the bit carrying container containing a predetermined number of drill bits to the drilling device is provided. , Take out the drill bit with the specified drilling diameter from the multiple bit magazines placed on the bit supply table with the bit remover, and remove the removed drill bit. By supplying the bit to the bit transport container with the bit supply tool and storing it, the drill bit can be automatically accommodated in the bit transport container without the manual work of the operator, and the drill bit is stored. The drill bit can be automatically supplied to the drilling machine by sending the bit carrying container to the drilling machine with the bit carrier, and the drill bit can be automatically fed without manual work by the operator. Can be selected and supplied. Also, the bit
The supply table is formed by sloping the upper surface and
Multiple slats that are long in the direction in which the bit magazine is placed
Id grooves are provided in multiple rows along the direction of inclination, and this bit
Arrangement of each slide groove at the front end position above the supply table.
The stopper plate along the direction is stored in the bit magazine.
Projected upward from the bit magazine of the front-end drill bit
Is arranged so that the shank
Then, it is stored in the bit magazine in each slide groove.
Among the drill bits, the drill bit located at the front end is
It is placed in a position where it is positioned on the stopper plate and
Use the take-out tool to put the drill bit in the front row of the bit magazine.
When the drill is removed, the shank of the next drill bit
Bit magaji to the position where it abuts on the topper plate and is locked
The front of the slide along the slide groove due to the inclination of the bit supply table.
It slides toward you.

The invention according to claim 2 further comprises an empty magazine stocker table in which the empty bit magazines from which the drill bits have been taken out are transferred from the bit supply table and arranged in parallel. The bit feeding device also serves as a means for returning the bit transport container containing the used drill bit from the drilling device from the drilling device, and the bit supply device also serves as a means for taking out the drill bit from the returned bit transport container. Then, it is arranged above the empty magazine stocker stand so as to be movable and driven along the parallel direction of the empty bit magazines, and the taken out drill bit is returned to the empty bit magazine corresponding to the drilling diameter and accommodated. Since it is equipped with a bit return tool, the bit transfer container that contains the drill bit that has been used in the drilling machine can be used by the bit transfer tool. Then, the drill bit is taken out from the returned bit transport container by the bit supplying tool, and the taken out drill bit is arranged by the bit returning tool in the empty magazine stocker table according to the drilling diameter. Can be returned to and housed,
A used drill bit can be automatically returned to the bit magazine without manual work of the operator.

Further, the invention according to claim 3 is a reusable tool for temporarily storing a reusable drill bit taken out by a bit supplying tool, out of the drill bits in the bit transport container returned from the punching device. Since the bit storage container is placed near the bit supply tool, the reusable drill bit among the drill bits in the bit transport container returned from the drilling machine is temporarily stored in the reuse bit storage container. It is possible to eliminate the need to return to an empty bit magazine on an empty magazine stocker stand.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the present invention.

FIG. 2 is a schematic plan view of the above.

FIG. 3 is a perspective view of the same bit supply table and empty magazine stocker.

FIG. 4 is a cross-sectional view of a bit supply table and an empty magazine stocker table of the above.

FIG. 5 is a perspective view of the bit supplying tool (bit returning tool) of the above.

FIG. 6 is a perspective view of the bit transfer tool of the above.

FIG. 7 is a view showing an operation of the bit supply table of the above, and (a) and (b) are partial cross-sectional views, respectively.

FIG. 8 is a view showing the operation of the above empty magazine stocker stand, and (a) to (d) are schematic front views of part of each.

FIG. 9 is a perspective view of the ring attachment tool of the above.

FIG. 10 is an enlarged cross-sectional view of a part of a mounting board of the above ring mounting fixture.

FIG. 11 is a view showing an operation of the above ring attachment tool, and (a) to (c) are enlarged cross-sectional views of a part thereof.

FIG. 12 is a perspective view of the above ring removing tool.

FIG. 13 is an enlarged cross-sectional view of a part of a removal board of the ring removal tool of the above.

FIG. 14 is a view showing the operation of the bit removing tool of the above ring removing tool, and FIGS. 14 (a) to 14 (c) are partially enlarged sectional views.

FIG. 15 is a perspective view of a bit magazine and a bit transport container.

FIG. 16 shows a drill bit, (a),
(B) is a front view, respectively.

FIG. 17 shows a drill bit equipped with a ring, and (a) and (b) are front views, respectively.

FIG. 18 shows a state in which a drill bit equipped with a ring is gripped by a drill chuck, and (a) and (b) are front views, respectively.

[Explanation of symbols]

1 Drill Bit 2 Bit Magazine 3 Bit Supply Table 4 Bit Extractor 5 Bit Transport Container 6 Bit Supply Tool 7 Bit Transport Tool 8 Empty Magazine Stocker 9 Bit Return Tool 10 Shank 14 Reusable Bit Storage Container 30 Slide Groove 37 Stopper Plate

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B23Q 3/155 B23Q 3/157 B26F 1/16 B23B 41/00

Claims (3)

(57) [Claims] 1. A bit magazine in which a plurality of drill bits having the same drilling diameter are accommodated, and a plurality of bit magazines having different drilling diameters are arranged in parallel. A bit take-out container, which is arranged so as to be movable and driven along the parallel direction of the bit magazine above and takes out a drill bit having a predetermined drilling diameter from a predetermined bit magazine, and a drill bit taken out by the bit take-out tool. And a bit feeding tool for feeding and accommodating a bit feeding container holding a predetermined number of drill bits to a punching device, and the bit feeding table is formed with an upper surface inclined. When
Both in the tilt direction where the bit magazine is placed on the upper surface
Multiple long slide grooves are provided in multiple rows along the tilt direction.
Above the bit supply table, each slide is located at the front end position.
The stopper plate along the alignment direction of the id groove
Bit magazine for front-end drill bits housed in gin
The shank protruding upward from the
A selective supply device for a drill bit, which is characterized by being installed . 2. An empty magazine stocker table, in which empty bit magazines are taken out of a drill bit and transferred from a bit supply table and arranged in parallel, wherein the bit transfer tool is used in a punching device. Used as a means for returning the bit transport container containing the already-existing drill bit from the punching device, the bit supply tool also serves as a means for taking out the drill bit from the returned bit transport container, and an empty magazine stocker stand And a bit return tool which is arranged above the above so as to be movable and driven along the parallel direction of the empty bit magazine and which returns the taken drill bit to the empty bit magazine corresponding to the drilling diameter and accommodates it. The drill bit selecting and supplying device according to claim 1, wherein 3. A reusable bit accommodating container for temporarily accommodating a reusable drill bit taken out by a bit supplying tool, out of the drill bits in the bit conveying container returned from the punching device. The selective supply device for a drill bit according to claim 1 or 2, wherein the selective supply device for a drill bit is arranged near a tool.