JPH10315093A - Working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance dust collecting capacity of chips generated at the cutting work time by providing a nozzle arranged so as to cover a periphery of a cutter and a dust collecting part to impart a negative pressure to the inside of the nozzle. SOLUTION: After cutting finishes, a dust collecting part 42 imparts compressed air to the inside of a nozzle holder 40, and injects the compressed air into a printed circuit board separately formed by cutting work from a tip opening part of a nozzle 41. In this case, dust is collected through the tip opening part of the nozzle 41 to surround a periphery of a cutter 32 from the cutting work surface side of an aggregate base board 33 of a cutting object. Therefore, dust collecting capacity is enhanced. Chips generated at cutting work time can be practically and sufficiently collected by that extent even when a small type such as a simple vacuum generator is used as a negative pressure source (that is, the dust collecting part 42) to supply negative pressure to the inside of the nozzle 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Table of Contents] The present invention will be described in the following order.

BACKGROUND OF THE INVENTION Prior Art (FIGS. 7 and 8) Problems to be Solved by the Invention (FIGS. 7 and 8) Means for Solving the Problems (FIGS. 1 to 6) Embodiment (1) Configuration of processing apparatus according to the present embodiment (FIGS. 1 to 4) (2) Configuration of dust collecting section 42 (FIGS. 5 and 6) (3) Operation and effect of the present embodiment (FIG. 1) (FIG. 1 to FIG. 6) (4) Other Embodiments (FIGS. 1 to 6) Effects of the Invention

[0003]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus, and is suitably applied to, for example, a processing apparatus for cutting a plurality of printed circuit boards collectively formed into individual printed circuit boards by cutting.

[0004]

2. Description of the Related Art Conventionally, a printed circuit board is manufactured in a state where a plurality of printed circuit boards are connected via a connecting portion, and is used by being separated one by one. In the following description,
A board in which a plurality of printed boards are connected via a connecting portion is referred to as an aggregate board.

In the step of dividing the collective board into the printed boards one by one, usually, the collective board 2 is supported by the support portion 3 as shown in FIG. A processing apparatus 1 is used which can cut a portion (that is, a connection point between each printed circuit board and a connection portion) with a blade 5 such as an end mill or a router bit attached to a spindle motor 4.

[0006] The processing apparatus 1 of this type usually has a collective substrate 2 supported by a support portion 3 as shown in FIG.
, A dust collecting mechanism 9 composed of a box-shaped base 6 disposed below and a dust collector 8 connected to the base 6 via a duct hose 7, and a dust collecting mechanism 9 as shown in FIG. A dust collecting mechanism having a predetermined configuration such as a dust collecting mechanism 13 including a dust collecting nozzle 11 and a dust collector 12 connected to the dust collecting nozzle 11 is provided, and cutting is performed by the dust collecting mechanism. It is designed to collect chips generated during processing.

[0007]

However, in the conventional processing apparatuses 1 and 10 as described above, in the former (FIG. 7), chips generated at the time of the cutting are removed from the lower surface side of the collective substrate 2 by the duct hose. Since the dust is collected through the dust collector 7, a large dust collector 8 is required to increase the dust collecting capacity. For this reason, in this type of processing apparatus 1, there were problems such as an increase in the size of the entire apparatus and an increase in installation costs.

Also, in the latter processing apparatus 10 (FIG. 8), as in the former case, a large dust collector 12 is required, so that the entire apparatus becomes large, and in order to collect dust from the side of the blade 5, There was a problem that it was difficult to collect chips sufficiently.

Further, in the latter processing apparatus 10, since the dust collecting nozzle 11 is disposed near the blade 5, the dust collecting nozzle 11 may interfere with the workpiece (the collective substrate 2).
There was a problem of lack of practicality.

In the conventional processing apparatuses 1 and 10 using the dust collectors 8 and 12 as described above, in any case, the duct hose 7 is connected to the dust collecting nozzle 1 from the cut portion of the workpiece.
1 has a large distance to the tip, and there is a problem in that it is difficult to collect dust sufficiently for practical use.

On the other hand, in a processing apparatus that does not use a dust collector, for example, after cutting, the chips adhered to the object to be cut are blown off with an air gun or the like, or the chips collected on a receiving table of the object to be cut are periodically removed. Post-treatment such as removal is required, and this has led to the problem that chips are blown around the processing device or work efficiency is poor.

The present invention has been made in view of the above points, and an object of the present invention is to propose a small-sized processing apparatus having a high dust collecting ability for chips generated during cutting.

[0013]

According to the present invention, there is provided a processing apparatus for cutting an object to be cut with a blade, wherein the nozzle is arranged so as to cover the periphery of the blade, and the inside of the nozzle is provided. And a dust collecting section for applying a negative pressure to the air.

As a result, the dust collecting ability can be increased by the amount of dust collected from the cutting surface side of the workpiece through the tip end opening of the nozzle surrounding the periphery of the blade. Therefore, even when a small dust collector is used, the chips generated during the cutting can be sufficiently collected for practical use.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) Configuration of Processing Apparatus According to the Present Embodiment In FIG. 1, reference numeral 20 denotes a table-top processing apparatus to which the present invention is applied as a whole, and the apparatus 20 is provided inside a base portion 21 formed in a box shape. A control unit (not shown) that controls the entire system is housed.

At the center of the upper surface of the base portion 21 in the width direction, the first guide unit 2 is arranged in parallel with the Y direction (arrow y).
2 and the first guide unit 22
A table 23 is arranged on the top so as to be movable in the X direction along the first guide unit 22 based on a propulsive force provided by a first drive mechanism (not shown).
A flat support 24 is mounted on the top.

As a result, in the processing apparatus 20, the collective substrate set so as to be placed on the
Under the control of the control unit, the first drive mechanism moves the table 23
Is conveyed in the Y direction based on the propulsive force given to the vehicle, and can be positioned and held at a predetermined position.

On the other hand, both ends of the base 21 in the X direction (arrow x) are opposed to each other with the base 21 interposed therebetween.
The first and second frame members 25A and 25B are fixed in parallel with the Z direction (arrow z).

The first and second frame members 25A,
A second guide unit 26 is provided at the upper end of the second frame member 25B in parallel with the Y direction so as to bridge between the first and second frame members 25A and 25B.
A movable plate 27 is attached to the guide unit 26 so as to be movable in the Y direction along the second guide unit 26 based on a propulsive force applied from a second drive mechanism (not shown).

A plate 29 is attached to the movable plate 27 via the tool elevating unit 28 so as to be movable in the Z direction (arrow z) by the tool elevating unit 28, and the tool mounting part 3 is attached to the plate 29.
0, a high-speed spindle motor 31 is attached.

At the lower end of the high-speed spindle motor 31, a cutting tool 32 such as an end mill or a router bit is attached rotatably based on the rotational force given by the high-speed spindle motor 31 with its cutting edge facing downward.

As a result, in this processing apparatus 20,
By driving the second drive mechanism, the pedestal 23
X is the position of the blade edge of the blade with respect to the
By driving the tool elevating unit 28, the cutting edge of the blade 32 can be moved in a direction approaching or separating from the collective substrate mounted on the receiving base 23. Has been made.

Thus, in the processing apparatus 20, during operation, the first drive mechanism and the second drive mechanism are driven, respectively, so that the cutting edge of the collective substrate placed on the receiving base 23 by the cutting edge of the blade 32 ( (The connection point between each printed circuit board and the connection portion), the high-speed spindle motor 31 drives the blade 32 to rotate, and the tool elevating unit 28 drives the blade 32
, A predetermined cutting portion of the collective substrate is cut by the cutting tool 28. The processing device 20
Thereafter, the tool 32 is raised by driving the tool elevating unit 28, and thereafter, the same operation as described above is successively repeated. It is made so that it can be cut.

For this reason, in the case of this processing apparatus 20, the high-speed spindle motor 31 rotates the blade 32 so that the force acting on the collective substrate by the blade 32 during cutting works in the direction opposite to the direction in which the blade 32 enters. Is used, and the cutting board is used to cut the collective substrate during cutting.
2, so that it can be prevented from being wound up.

In addition to this configuration, in the case of the processing apparatus 20, the nozzle holder 40 fixed to the high-speed spindle motor 31 so as to cover the lower end of the high-speed spindle motor 31 as shown in FIG. Nozzle 41 attached to the lower end face of nozzle holder 40 as described above,
A dust collecting mechanism unit 43 including a dust collecting unit 42 for applying a negative pressure to the inside of the nozzle holder 40 is provided.

In this case, the length of the nozzle 41 in the Z direction is selected such that the length from the lower end to the tip of the blade 32 is slightly longer than the thickness of the collective substrate 33 to be cut. This allows the nozzle 41 to be
Are brought into contact with the collective substrate 33 to prevent interference.

An exhaust hole 40A is formed in the peripheral side surface of the nozzle holder 40. The exhaust hole 40A is connected to a dust collecting portion 42 via a suction hose 44,
2 is designed to apply a negative pressure to the inside of the nozzle holder 40 through the suction hose 44 and the exhaust hole 40A of the nozzle holder 40 in sequence under the control of the control unit during the cutting operation.

As a result, in this processing apparatus 20,
Air can be sucked in at a predetermined pressure from the front end opening of the nozzle 41 based on the negative pressure given to the inside of the nozzle holder 40, and thus chips generated at the time of cutting work are passed through the front end opening of the nozzle 41. And the chips are prevented from scattering around.

Further, a suction hole 40B is formed in a peripheral side surface of the nozzle holder 40, and the suction hole 40B is connected to the dust collecting portion 42 through a valve 45 and an injection hose 46 in order. After the cutting process, under the control of the control unit, compressed air of a predetermined pressure is sequentially passed through the injection hose 46 and the valve 45 as shown in FIG.
It is made to give within 0.

As a result, in the processing apparatus 20,
Air can be jetted at a predetermined pressure from the leading end opening of the nozzle 41 based on the compressed air supplied into the nozzle holder 40. Thus, the fine printed circuit board divided by the cutting process is moved to the leading end opening of the nozzle 41. It is designed to prevent inhalation through the air.

In the case of this embodiment, as shown in FIG.
On the upper end surface of the nozzle 41, a convex portion 41A having a thread formed on the outer peripheral surface is formed, and on the lower end surface of the nozzle holder 40, a thread groove is formed on the peripheral end surface corresponding to the convex portion 41A of the nozzle 41. The opening 41C of the nozzle 41 is formed in the opening 40C of the nozzle holder 40.
A is screwed into the nozzle 41 so that the nozzle 41
It can be detachably attached to the camera.

Thus, in this processing apparatus 20,
The nozzle 41 can be easily removed from the nozzle holder 40 without using a tool, and thus the blade 32 can be easily replaced.

In this embodiment, as is apparent from FIGS. 2 to 4, the tip of the nozzle 41 is formed in a tapered shape (that is, a tapered shape) that becomes thinner toward the tip. Thereby, the dust collecting ability based on the negative pressure given from the dust collecting section 42 to the inside of the nozzle holder 40 is enhanced, and the cutting tool 3
In order to minimize interference with parts around the cutting part including the cutting part 2.

(2) Structure of the Dust Collection Part 42 As shown in FIG. 5, the dust collection part 42 has a predetermined pressure of compressed air AIR supplied from a compressed air supply source (not shown).
Is input to the solenoid valve 51 via the regulator 50.

At this time, the solenoid valve 51 can switch the output destination of the supplied compressed air AIR based on a control signal given from the control unit. 1 to the open end 52A.

As shown in FIG. 6, the simple vacuum generator 52 is a tubular member having a T-shaped air passage 52D, and the compressed air AIR supplied to the first open end 52A is supplied to the air passage 52D. It is output from the second opening end 52B through the linear portion, and is discharged to the outside through a pipe (not shown) and a sun lancer 53 (FIG. 5) sequentially.

As a result, a suction flow is generated at the third opening end 52C of the simple vacuum generator 52 based on the compressed air AIR passing through the linear portion of the air passage 52D, so that the third vacuum end of the simple vacuum generator 52 is formed. Negative pressure is generated in a hose (not shown) connected to the open end, and is supplied to the suction hose 44 via the dust filter 54.

Thus, in the dust collecting section 42, a negative pressure can be applied to the inside of the nozzle holder 40 through the suction hose 44, and as a result, the chips sucked through the nozzle 41 can be removed by the dust collecting filter 54. It is made so that it can be stored in.

On the other hand, after cutting is completed, the solenoid valve 5
1 switches the output destination of the supplied compressed air AIR to the injection hose 46 side based on a control signal given from the control unit.

Thus, in the dust collecting section 42, compressed air AIR can be supplied into the nozzle holder 40 via the injection hose 46 and the nozzle 41 in order. The amount of compressed air injected into the nozzle holder 40 can be adjusted by the valve 45.

In the case of this embodiment, the regulator 50,
As is clear from FIG. 1, the solenoid valve 51, the simple vacuum generator 52, the silencer 53, and the dust collecting filter 54 have a U-shape that bridges between the upper ends of the first and second frame members 25A and 25B. It is mounted on the mounting member 55 and on the back side of the second guide unit 26 (the side facing the front side on which the moving plate 27 is mounted).

Thus, in this processing apparatus 20,
These dust collecting sections 42 can be integrated with the main body of the processing apparatus 20, and thus the entire apparatus can be configured to be compact and easy to transport.

(3) Operation and Effect of the Present Embodiment In the above configuration, in the machining apparatus 20, the dust collecting section 42 applies a negative pressure to the inside of the nozzle holder 40 at the time of cutting, and based on the negative pressure. Chips generated during the cutting process are sucked from the opening at the tip of the nozzle 41.

In the processing device 20, after the cutting is completed, the dust collecting section 42 supplies the compressed air into the nozzle holder 40, and the compressed air is injected from the opening at the tip of the nozzle 41 to the printed circuit board formed by cutting. I do.

In this case, the processing apparatus 20 collects dust from the cutting surface side of the collective substrate 33 (FIGS. 2 and 3) to be cut through the tip opening of the nozzle 41 surrounding the blade 32. Even when a small vacuum source such as a simple vacuum generator 52 is used as a negative pressure source (that is, a dust collecting unit 42) for supplying a negative pressure to the inside of the nozzle 41 correspondingly with high dust capacity, sufficient cutting is practically performed. Chips generated at the time can be collected.

According to the above configuration, the nozzle 41 is arranged so as to cover the periphery of the blade 32, and a negative pressure is applied to the inside of the nozzle 41 at the time of cutting, so that the nozzle 41 is practically used without using a large dust collector. In addition, it is possible to sufficiently collect the chips, and thus to realize a small-sized processing apparatus having a high dust collecting ability for chips generated at the time of cutting.

(4) Other Embodiments In the above embodiment, the present invention is applied to the collective substrate 3
3 is applied to a table-top processing apparatus that separates and forms a printed circuit board. However, the present invention is not limited to this. It can be widely applied to various processing apparatuses other than the cutting processing.

In the above embodiment, the blade 3
FIG. 2 shows a nozzle 41 arranged to cover the periphery of
4 to FIG. 4, the present invention is not limited to this, and various other shapes can be applied. However, also in this case, the dust collecting ability can be enhanced by forming at least the tip portion to be tapered.

Further, in the above-described embodiment, as a means for fixing the nozzle 41 to the lower end of the high-speed spindle motor 31, the case where the nozzle holder 40 is provided separately from the nozzle 41 has been described. However, the present invention is not limited to this. The nozzle may be formed in a predetermined shape, and the nozzle may be directly fixed to the high-speed spindle motor 31.

Further, in the above-described embodiment, as a means for detachably fixing the nozzle 41 to the lower end portion of the high-speed spindle motor 31, a convex portion 41A having a thread formed on a peripheral side surface on an upper surface portion of the nozzle 41 is provided. At the same time, the lower end surface of the nozzle holder 40 is provided with an opening 40C in which a thread groove is formed on the peripheral side surface, and the projection 41A of the nozzle 41 is screwed into the opening 40C of the nozzle holder 40 so that the nozzle 4
1 has been described as being attachable to the nozzle holder 40, but the present invention is not limited to this, and various other means may be used to detachably fix the nozzle 41 to the lower end of the high-speed spindle motor 31. Can be applied. Also, in the case where the nozzle 41 and the nozzle holder 40 are configured so that the nozzle 41 can be screwed into the nozzle holder 40 as described above, an O-ring, a packing, or the like may be used to prevent loosening of the screw. .

Further, in the above-described embodiment, the case where the high-speed spindle motor 31 is applied as the holding means for holding the blade 32 and the rotation driving means for rotating the blade 32 has been described. The present invention is not limited to this, and various holding means and rotary driving means can be applied.

Further, in the above-described embodiment, the case where the dust collecting portion 42 for applying a negative pressure inside the nozzle 41 is configured as shown in FIG. 5 has been described. However, the present invention is not limited to this. Various other configurations can be applied. In this case, for example, when a negative pressure generating means for generating a negative pressure based on the compressed air is used, various other negative pressure generating means other than the simple vacuum generator 52 can be applied as the negative pressure generating means.

Further, in the above-described embodiment, a case has been described in which the compressed air AIR is supplied to the dust collecting section 42 to generate a negative pressure or a positive pressure in the nozzle holder 40 and the nozzle 41. However, the present invention is not limited to this, and a negative pressure or a positive pressure may be generated in the nozzle holder 40 and the nozzle 41 by supplying various kinds of compressed gas to the dust collecting portion 42.

Further, in the above-described embodiment, a high-speed spindle motor capable of rotating the blade 32 so that the force acting on the collective substrate by the blade 32 during cutting works in a direction opposite to the direction in which the blade 32 enters. However, the present invention is not limited to this, and it is also possible to use a blade in which the force acting on the workpiece during cutting works in the direction opposite to the approach direction.

[0056]

As described above, according to the present invention, in a processing apparatus for cutting an object to be cut with a blade, a nozzle arranged to cover the periphery of the blade and a negative pressure is applied to the inside of the nozzle. By providing the dust collecting portion, even when a small dust collecting portion is used, it is possible to sufficiently collect the chips generated during the cutting work in practice, and thus generated during the cutting process. It is possible to realize a small-sized processing device having a high dust collecting capability for chips.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a processing apparatus according to an embodiment.

FIG. 2 is a side view partially showing a cross section of a configuration of a dust collecting mechanism according to the present embodiment.

FIG. 3 is a side view partially showing a cross section of a configuration of a dust collecting mechanism according to the present embodiment.

FIG. 4 is a side view showing a configuration of a nozzle holder and a nozzle.

FIG. 5 is a connection diagram illustrating a configuration of a dust collection unit.

FIG. 6 is a sectional view showing a configuration of a simple vacuum generator.

FIG. 7 is a schematic side view partially showing a cross section of a configuration of a dust collecting mechanism used in a conventional processing apparatus.

FIG. 8 is a schematic side view showing a configuration of a dust collecting mechanism used in a conventional processing apparatus.

[Description of Signs] 20 ... Processing device, 31 ... High-speed spindle motor, 3
2 ... knife, 40 ... nozzle holder, 40A ... exhaust port, 40B ... intake port, 41 ... nozzle, 42 ... dust collecting section, 43 ... dust collecting mechanism section, 52 ... simple vacuum generator.

Claims (7)

[Claims] 1. A processing apparatus for cutting a cut portion of a workpiece with a cutting tool, comprising: a nozzle arranged to cover a periphery of the cutting tool; and a dust collecting section for applying a negative pressure to the inside of the nozzle. Processing equipment characterized by comprising. 2. The processing apparatus according to claim 1, wherein said dust collecting section includes a negative pressure generating means for generating a negative pressure based on the supplied compressed gas. 3. The processing apparatus according to claim 1, wherein at least the tip of the nozzle is formed in a tapered shape. 4. The processing apparatus according to claim 1, further comprising holding means for holding the blade, wherein the nozzle is detachably attached to the holding means. 5. The processing apparatus according to claim 1, wherein the dust collector applies a positive pressure to the inside of the nozzle after the cutting of the workpiece by the blade is completed. 6. The processing apparatus according to claim 1, wherein a force acting on the workpiece during the cutting process acts in a direction opposite to an approach direction as the blade. 7. A rotary drive means for rotating and driving the blade, wherein the rotary drive means causes a force acting on the workpiece during the cutting in a direction opposite to a direction in which the blade advances. The processing apparatus according to claim 1, wherein the blade is driven to rotate.