KR20010021450A - Machine Tool Having Dust Collecting Function - Google Patents

Abstract

PURPOSE: A machine tool is provided to realize provision of stable absorptivity and a duct collection force, in the machine tool with a dust collecting function to perform machining as machining chips of a work generated by machining are collected by a dust collector. CONSTITUTION: The substrate boring machine(1) is formed such that grinding chips generated during formation of a through-hole in a printed substrate(72) are collected by a dust collector(84) through a cup(78) and a dust collection pipe(82). Meanwhile, suction of the printed substrate(72) is carried out by applying a negative pressure, generated by a blower(25), on a through-hole(37) through a suction route consisting of a plate(35), a groove(31), and a suction hole(23). Since, as noted above, in a substrate boring machine(1), pressure sources are independent of one another such that a pressure source for a dust collection system is used in the dust collector and a pressure source for a suction system is used in a blower, a force to suck the printed substrate(72) is not influenced by the degree of progress of machining and a dust collecting force is also stable.

Description

Machine Tool Having Dust Collecting Function

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool provided with a dust collecting function for performing machining while collecting the processed chips generated by the machining with a dust collector.

BACKGROUND ART Conventionally, a machine tool is known that performs processing while collecting a processing chip of a workpiece (also called a workpiece) generated by processing with a dust collector.

A substrate hole perforator 70, which is an example of such a machine tool, is shown in FIG. This figure is explanatory drawing which showed the outline | summary of the board | substrate hole puncher 70 which forms the through hole in the printed board 72. FIG. When the main shaft 74 is rotated in the substrate hole perforator 70 and the hole punching process is performed on the printed circuit board 72 with the drill 76 attached to the tip, the cutting chip of the printed circuit board 72 is generated. The circumference | surroundings of the main shaft 74 are covered with the dust collecting cup 78 except the lower part which the tip of the drill 76 etc. are exposed. The dust collecting cup 78 is connected to the dust collector 84 by the dust collecting pipe 82 via the valve 80, and draws the cutting chip which generate | occur | produced during the process by applying negative pressure with this dust collector 84. FIG.

On the other hand, the printed board 72 is mounted on the plate 86, and the negative pressure is applied to the plate 86 via the hole 88 formed in the plate 86. The lower part of the plate 86 becomes the vacuum chamber 92 formed in the table 90, and this vacuum chamber 92 is connected to the dust collector 84 via the suction hose 94. As shown in FIG.

However, according to the prior art, since the pressure source for adsorption of the printed circuit board 72 is shared with the dust collector 84, which is the pressure source of the dust collecting system, the pressure in the vacuum chamber 92 changes as the processing proceeds, thereby printing The adsorption force of the substrate 72 is not stable. That is, when the main shaft 74 is lowered, the pressure rises and becomes approximately constant pressure in the center of the hole formed by the drill 76. However, when the hole is drilled through the printed board 72 and the main shaft 74 is raised, the pressure is increased. Plunging Adsorption force also fluctuates with this pressure change. Moreover, such a change in adsorption force means that the dust collection force also changes, and there is a possibility that dust collection may not be sufficiently performed by this change.

This problem occurs similarly to a machine tool which does not need to be a substrate hole perforator 70 to suck a workpiece to a holding table such as a table 90 and to collect a processing chip generated during processing.

This invention is made | formed in view of such a subject, Comprising: The machine tool with the dust collection function of Claim 1 aims at realizing stable adsorption | suction force and the dust collection force.

Moreover, the machine tool provided with the dust collecting function of Claim 2 aims at making it unnecessary to stop the pressure source, when adsorption is unnecessary.

Moreover, the machine tool provided with the dust collecting function of Claim 3 aims at increasing adsorption force, without enlarging a holding stand.

And the machine tool to which the dust collection function of Claim 4 was given proposes the form suitable for applying this invention.

The present invention as set forth in claim 5 is intended to make it possible to easily cope with a printed board of various shapes and sizes with the machine tool provided with the dust collecting function of claim 4.

1 is a front view of a substrate hole perforator which is one embodiment of the present invention.

2 is a plan view of a substrate hole perforator.

3 is a plan view showing an adsorption path of a printed board of a substrate hole perforator;

4A to 4C are side views showing the adsorption path of the printed board of the substrate hole perforator.

5A and 5B are explanatory diagrams of a groove table and a plate.

Fig. 6 is an explanatory diagram showing a dust collecting system and an adsorption system of a substrate hole perforator.

Fig. 7 is an explanatory diagram showing a dust collecting system and an adsorption system of a substrate hole perforator according to another embodiment of the present invention.

8 is an explanatory view showing a dust collecting system and an adsorption system of a conventional substrate hole perforator.

<Explanation of symbols for the main parts of the drawings>

1, 50: substrate hole perforator

3: head

5: Z axis motor

12, 17: rail

13: X axis motor

21, 33, 37: through hole

23: adsorption hose

24: adsorption hose cover

25: blower

29: home table

31: home

35: plate

43, 80: valve

70: conventional substrate hole perforator

72: printed board

74: spindle

74a: spindle motor

82: dust collecting pipe

84: dust collector

90: table

The present invention according to claim 1, which is made in order to achieve the above object, in a machine tool provided with a dust collecting function for performing processing while collecting a processing chip of a workpiece generated by a machining performed in the machine tool with a dust collector. ,

A blower provided separately from the dust collector, a holding table having a through hole formed at the site of holding the workpiece and the holding portion; and a suction hose connecting the through hole of the holding table and the inlet of the blower. When the blower is operated, a negative pressure is applied through the through hole to adsorb the workpiece held in the holding table.

In this way, the pressure source of the dust collector and the pressure source of the adsorption are independent of each other by the blower, and the adsorption force is not affected by the processing progress.

In this way, it is not necessary to perform both the dust collection and the adsorption with one dust collector like the substrate hole perforator 70. As a result, a dust collector and a blower may be used which have a smaller output than the dust collector 84 of the substrate hole perforator 70. As a result, the machine tool can be miniaturized, energy consumption can be reduced, and noise can be realized.

Moreover, a machine tool including the board | substrate hole puncher 70 also processes a large number of to-be-processed objects successively, and contributes to the mass production of a to-be-processed object. In this case, the workpiece to be processed is removed from the holding stand and returned to a separate site for processing the next work piece, and the next work piece is adsorbed to the holding stand to perform the processing. That is, when performing mass production of a to-be-processed object, it is necessary to repeat adsorption | suction and the suspension of the adsorption | suction.

Corresponding to this is the present invention according to claim 2. That is, in this invention, the machine tool provided with the dust collecting function of Claim 1 WHEREIN: It is characterized by the said suction hose provided with the valve which opens and closes according to the instruction | indication from the outside.

According to the machine tool with which the dust collecting function of Claim 2 was provided, the suction and the stop can be started by opening and closing the valve without stopping or operating the blower.

This invention of Claim 3 WHEREIN: The machine tool provided with the dust collection function of Claim 1 or 2 WHEREIN: The said adsorption hose consists of a some hose, It is characterized by the above-mentioned.

In this case, since the substantial cross-sectional area of the suction hose is the sum of the cross-sectional areas of the plurality of hoses, a large suction force can be exhibited. If the same adsorption force is to be realized by one hose, the hose is very thick, and when the hose is placed under the holding table (table 90) as in the following embodiment, it is difficult to install the holding table and the hose. There is a need to secure a large space at the bottom of the support or to build it.

On the other hand, if a adsorption hose is comprised by several hose like Claim 3, it can be set as the adsorption hose with large cross-sectional area and easy installation.

The present invention according to claim 4 is the machine tool to which the dust collecting function is applied according to any one of claims 1 to 3, wherein the workpiece is a printed board, and the machine tool to which the dust collecting function is applied passes through the printed board. It is a machine tool forming a hole, It is characterized by the above-mentioned.

Although printed boards usually have some irregularities due to conductive patterns and printed letters on their surfaces, they are almost planar, so they are very suitable as workpieces to be adsorbed and fixed to a holding table. Although there are some flexibility in a printed board, it can also be made flat by deforming suitably also, and it can also be fixed by adsorption. Moreover, since the process of through-hole formation also collects the surroundings of a drill with the above-mentioned dust collection cup 78, etc., since the cutting chip which comes out during a process can be gathered easily, it is suitable as an application object of this invention.

Therefore, the machine tool imparted with the dust collecting function of the present invention is very suitable for application to the machine tool as described in claim 4.

In the machine tool with the dust collecting function of Claim 4, this invention of Claim 5 WHEREIN: The said support stand is the groove table in which the groove | channel which communicated with the said adsorption hose was formed in the upper surface, and the plate shape polymerized on the upper surface of the said groove table. A member having a plate having a through hole corresponding to an outer shape of the printed board and a position of a groove formed in the groove table, and when the blower is operated, a negative pressure is applied through the through hole formed in the plate to form an upper surface of the plate member. It adsorb | sucks the said printed circuit board mounted in it.

In this way, in order to form the through holes in the printed boards of various sizes and shapes, the plate having the through holes formed in accordance with the size and shape may be polymerized to the groove table. In this case, since there is no excess through hole in the plate, intake air does not leak from the through hole. Thereby, sufficient adsorption force can be exhibited.

EMBODIMENT OF THE INVENTION Below, the board | substrate hole puncher 1 which is one Embodiment of this invention is demonstrated with drawing. In addition, the same code | symbol was attached | subjected about the structure which has the same function as the board | substrate hole puncher 70. As shown in FIG.

First, FIG. 1 is a front view showing the outline of the substrate hole perforator 1. The main shaft motor 74a for rotating the main shaft of the substrate hole perforator 1 is attached to the head 3 and similarly movable up and down with the main shaft by the Z axis motor 5 attached to the head 3. It is. The head 3 is moved left and right along the two rails 12 by the Y-axis motor 9 rotating the ball screw 11.

2 is a plan view of the substrate hole perforator 1. In addition, in this figure, the conveyance system etc. of the printed circuit board mounted on the table 90 are abbreviate | omitted. When the ball screw 15 is rotated by the X-axis motor 13, the table 90 moves back and forth (up and down in this figure) along the rail 17. As shown in FIG. Shown by the dashed line is the movable range 19 of the table 90. That is, in the substrate hole perforator 1, the head 3 is moved in the left and right directions of the drawing by the Y-axis motor 9, and the table 90 is moved up and down in the drawing by the X-axis motor 13. By moving, the main axis is moved relative to the desired position of the table 90 (or the printed board). In addition, although not shown, the head 3 is equipped with a camera, and by this, by photographing and recognizing the image recognition mark formed on the printed board, the position shift of the printed board can be compensated.

3 shows an adsorption path of the printed board. 2, the periphery of the table 90 and the X-axis motor 13 are enlarged from the same direction as FIG. An elongate circular through hole 21 is formed in the table 90, and two adsorption hoses 23 arranged side by side are connected to the through hole 21. The other end of the adsorption hose 23 is connected to the blower 25, and this adsorb | sucks a printed board.

The side view seen from the right side of FIG. 3 is shown to FIG. 4 (a). As shown in the figure, the suction hose 23 is bent in a U shape in the left part of the figure and connected to the table 90. This U-shaped bent portion is covered with a suction hose cover 24. Fig. 4B is a view of Fig. 4A seen from the left side. As shown in this figure, two adsorption hoses 23 are horizontally arranged side by side, so that they are provided in a small space in the space below the table 90. Fig. 4C is a view seen from the arrow A-A in Fig. 3, and the suction hose 23 is connected to the table 90 via the joint 27. Figs. In Fig. 4C, a groove table 29 is attached on the table 90. Figs.

This home table 29 is shown in Fig. 5A. This figure is a top view of the groove table 29. The groove table 29 is formed with a total of ten grooves 31 in the longitudinal direction and four in the lateral direction in this drawing, and a circular through hole 33 is formed in the groove 31 in the transverse direction. Formed. When the groove table 29 is attached to the table 90, the through hole 33 communicates with the through hole 21 of the table 90. When the blower 25 is operated, negative pressure is applied to the ten grooves 31. Takes In order to adsorb | suck a printed board, the plate 35 is superposed | polymerized on this groove table 29, a printed board is mounted on it, and the blower 25 is operated.

The state in which the plate 35 is polymerized on the groove table 29 is shown in Fig. 5B. The plate 35 is provided with sixteen through holes 37 near its corners, and the position thereof is matched with the position of the groove 31 at the outermost side of the groove table 29. In addition, the position of the through hole 37 is matched to a position slightly inward of the outer periphery of the adsorbed printed board, and the negative pressure applied to the printed board via the through hole 37 reliably adsorbs the printed board. Moreover, since the lower surface of the plate 35 contacts the rectangular part 39 and the corner part 41 of the groove table 29 which remain | survived the groove 31 in the groove table 29, the plate ( 35) is not transformed.

The dust collecting system of the board | substrate hole puncher 1 is shown in FIG. 6 with the adsorption system demonstrated above. That is, FIG. 6 is explanatory drawing which shows the outline of the dust collector and adsorption system of the board | substrate hole puncher 1. As shown in FIG. In addition, in this figure, the home table 29 is described integrally with the table 90. As shown in the figure, in the substrate hole puncher 1, the cutting chips generated when forming the through holes in the printed circuit board 72 are collected by the dust collector 84 via the cup 78 and the dust collecting pipe 82. . On the other hand, the adsorption of the printed board 72 is performed by the negative pressure generated by the blower 25 being caught by the through hole 37 via an adsorption path composed of the plate 35, the groove 31, and the adsorption hose 23. All.

As described above, in the substrate hole perforator 1, the pressure source of the dust collecting system is independent of each other by the dust collector 84 and the pressure source of the adsorption system by the blower 25. It is not affected.

Moreover, since it is not necessary to carry out both dust collection and adsorption with one dust collector 84 like the board | substrate hole puncher 70 by this, the board | substrate hole puncher 70 as the dust collector 84 and the blower 25 is carried out. It is possible to use a smaller output than the dust collector 84 of the (). As a result, the substrate hole perforator 1 can be miniaturized, energy consumption can be reduced, and noise can be realized.

In addition, since the suction hose 23 is composed of two hoses, a large cross-sectional area can be secured as an intake path, and the suction hose 23 is also easy to be installed in a narrow space such as the lower portion of the table 90.

In addition, when the shape of the printed circuit board 72 changes, the plate 35 can be easily replaced by replacing the through hole 37 with one formed in accordance with it.

As mentioned above, although the board | substrate hole perforator 1 was demonstrated as one Embodiment of this invention, this invention is not limited to this embodiment, It can implement in various forms.

For example, in the board | substrate hole puncher 1, although the valve 80 was provided only in the dust collecting pipe 82, you may install in the suction hose 23. As shown in FIG. This is shown in FIG. That is, FIG. 7 is explanatory drawing which showed the concept of the board | substrate hole puncher 50 which provided the valve 43 in the middle of the suction hose 23. As shown in FIG. If the valve 41 is provided in the adsorption hose 23 like the board | substrate hole puncher 50, the adsorption | suction operation can be stopped with the blower 25 operating by closing the valve 41. FIG. According to the board | substrate hole puncher 50, since the adsorption | suction of the printed board 72 at the time of conveyance of the printed board 72, and this release can be performed simply by controlling the valve 41 from the outside, the printed board 72 Very convenient for mass production.

In all of the above embodiments, the present invention is applied to a substrate hole perforator which forms a through hole in a printed board, but may be applied to a machine for adsorbing a workpiece other than the printed board to perform hole punching. Moreover, you may apply to the machine tool which processes other than hole punching. The present invention can be applied to any machine tool as long as it is a machine tool that fixes the workpiece by adsorption and collects chips generated during processing.

The substrate hole perforator 1 has a shape in which the head 3 moves in the Y direction and the table 90 moves in the X direction, but the head 3 moves not only in the up and down and Y directions but also in the X direction. It is comprised possible and you may apply this invention to the form which the table 90 does not move. This shortens the piping of the suction hose 23 and also eliminates the need to consider the movement of the table 90. Therefore, the structure of the suction system is simplified and the reliability is also high.

Although piping of the suction hose 23 becomes difficult, etc., on the contrary, the head 3 may move only in an up-down direction, and the table 90 may be comprised so that it may move to X and Y directions.

In the board | substrate hole perforator 1, although the two hoses were arrange | positioned horizontally side by side as the suction hose 23, you may pipe one by one on both sides of the ball screw 15. As shown in FIG. At this time, two through-holes 21 of the table 90 are also formed, and what is necessary is just to connect one hose each. In this case, two through holes 33 are also formed in the groove table 29. In addition, although the hose of the suction hose 23 was made into two, you may make it three or more.

INDUSTRIAL APPLICATION This invention can implement | achieve the stable adsorption | suction force and dust collection force in the machine tool provided with the dust collection function which processes while collecting the processed chip | tip of the to-be-processed object which arises by processing by a dust collector.

Claims (5)

In a machine tool provided with a dust collecting function for performing a process by collecting a processing chip of a workpiece generated by a machining performed in the machine tool with a dust collector, the blower is provided separately from the dust collector, and the workpiece is held. A holding support having a through hole formed at a portion of the holding and holding the support, and a suction hose connecting the through hole of the holding support to the intake port of the blower; and when the blower is operated, a negative pressure is passed through the through hole. A machine tool provided with a dust collecting function, characterized in that for adsorbing the workpiece held by the holding table. 2. The machine tool according to claim 1, wherein the suction hose is provided with a valve that opens and closes according to an instruction from the outside. The machine tool with a dust collecting function according to claim 1 or 2, wherein the suction hose comprises a plurality of hoses. The dust collecting function according to any one of claims 1 to 3, wherein the workpiece is a printed board, and the machine tool provided with the dust collecting function is a machine tool for forming a through hole in the printed board. Machine tool. The groove of claim 4, wherein the holding table includes a groove table having a groove communicating with the suction hose on an upper surface thereof, and a plate-shaped member polymerized on an upper surface of the groove table. A dust collecting function comprising a plate having a through hole corresponding to a position, and when the blower is operated, a negative pressure is applied through the through hole formed in the plate to adsorb the printed board mounted on the upper surface of the plate member. Endowed machine tool.