JPH03170249A - Dust collecting device for wood working machine and the like - Google Patents

Abstract

PURPOSE:To reduce the rise of a dust discharging passage, to shorten the dis tance as well and to perform a strong dust collection with good efficiency by composing it so as to open the air passage provided inside a casing at the side part of a spindle head and to reject the chip from the suction port corre sponding to this opening horizontally. CONSTITUTION:When a spindle head A is operated with its movement to a work position from the retreat position, the other end opening (c) of the air passage (a) in the spindle head A is connected to the suction port (d) of the vacuum means side. The chip generated in case of cutting reaches the suction port (d) via the air passage (a) of the motor 25 outer peripheral part from the brush 28 inside and rejected to the external part from the discharging port 42 of a hollow room 40. In this case, the end part of the air passage (a) is opened toward the rear part of the spindle head A and the suction port (d) is corresponding to this opening in the horizontal direction, so there is no rise beyond the need in the passage of the chip and the discharging passage can be composed in the shortest distance.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a dust collector for a woodworking machine or the like whose structure is simplified by devising a chip discharge passage.

(Conventional technology) Processing machines are known that perform processing such as cutting out, drilling, and engraving using three-dimensional relative movement between a workpiece and a processing blade, and numerically controlled routers ( It is called ``NC router'' and is widely used.

For example, the one shown in Figure 1 of the Japanese Utility Model Publication No. 13605/1985 is generally called a parallel type NC router, in which multiple spindle heads are arranged side by side in the horizontal direction.
This machine performs the above-mentioned machining by using the spindle head 1 simultaneously or selectively.

When the main spindle head of this processing machine is lowered by the air cylinder (8) shown in FIG. 2 of the same publication, it is set to a workpiece processing position, and the required processing is performed on the workpiece at this position. Then, the chips generated in the brush (21) are transferred from the air flow #8 (22) around the motor periphery to the vertical connecting pipe (23) by the suction force of the vacuum means.
It reaches a horizontal supply air duct (24) from where it is discharged to the outside.

In addition, in order to prevent the main spindle head 1 which is not in the workpiece machining position, that is, the one in the retracted position, from being delivered to the vacuum means described above,
It is blocked by

(Problem to be Solved by the Invention) In this way, in the conventional configuration, the air flow path is straight in the vertical direction, which improves the evacuation of chips, and also allows the air flow to act on the peripheral wall of the motor. It has various advantages such as the cooling effect and the ability to suppress the vacuum from unnecessary places by using the valve @ side, but the vertically long connecting pipe (23)
Because of this, the flow path becomes longer, and chips can be sucked up to higher places.
It has the disadvantage that it requires strong suction power and requires the installation of a large-capacity vacuum device. In addition, the connecting pipes, suction duct I, etc., which are the structural members, occupy the space above the spindle head, which increases the size of the entire device and causes a poor external design of the machine.

Furthermore, there was also the problem that the cost increased by 1 to 1 due to the increase in size.

The present invention has been made by focusing on the problems of the prior art described above, and by reviewing the configuration of the air passage, the dust suction effect and motor cooling effect are effectively performed, and by simplifying the ellipse, The objective is to provide a dust collector for woodworking machines, etc., which can improve the external design and reduce costs.

(Means for Solving the Problems) In order to achieve the above object, the dust collector according to the present invention has the following features.

That is, the gist of this invention is that spin 1.
A spindle head is arranged in parallel with a support extending in the horizontal direction, and a movable operation member is attached to these spindle heads. Relatedly, in a processing machine that can switch between a workpiece processing position and a retreat position, an air passage is formed in the casing, one end of which is opened toward the processing position of the processing cutter, and the other end is opened toward the main spindle head. A hollow chamber is provided which opens toward the side position of the main shaft head, and has an inlet corresponding to the other end opening and an outlet communicating with the vacuum means. The valve mechanism is designed so that it communicates when moving to the workpiece processing position and shuts off when moving to the retreat position.

(Function) When the spindle head is moved from the retracted position to the machining position,
The other end opening of the air passage in the spindle head is connected to the intake port on the side of the vacuum means.

Therefore, the chips generated during the cutting process reach the air intake port from inside the brush 5 through the air passage on the outer circumference of the motor, and are then removed to the outside from the discharge port of the hollow chamber.

In this case, the end of the air passage opens toward the rear of the spindle head, and the intake port corresponds to this opening in the horizontal direction, so there is no more rise than necessary in the chip passage, and the shortest path is possible. A discharge path can be configured. Therefore, chips can be discharged extremely smoothly. Further, when the chips pass through the air passage, the outer circumferential wall of the motor can be cooled.

On the other hand, when the spindle head is moved from the processing position to the retracted position, the other end opening of the air passage is removed from the position of the intake port and is closed. This valve switching operation can prevent suction from unnecessary locations, thereby reducing the burden on the vacuum means.

(Example) Hereinafter, one example of the dust collector for woodworking machines and the like according to the present invention will be specifically described.

6 Fig. 1 is a front view of a numerically controlled router equipped with the dust collector of the present invention, and Fig. 2 is a side view thereof, in which 1 is a frame, 2 is arranged on the upper surface of the frame 1. The guide rail 3 in the front and rear direction (X-axis direction) is a table body that can freely move -+y to the above guys 1 and rails 2 and 2 via bearings 1 and 4.The table body 3 has a box shape with an open top. A table plate 5 is provided above the opening plane so as to cover the entire surface. The table plate 5 is provided with a large number of small holes 6 that pass through the table body, and a vacuum device (not shown) outside the machine is connected to the table body through a hose 7. W is a workpiece fixed on the table plate 5 by suction.

Next, 8 is a servo motor connected to the table main body 3 via a screw-type feed mechanism 9, and 10 is a column 11.11 on both sides.
The upper frame 12 is arranged to straddle the frame 1 by the upper frame 12, 12 is the guide rail 13 arranged on the front side of the upper frame 14 in the left-right direction (Y-axis direction).
A moving base movably engaged with 2 and 12 A screw-type feeder' is attached to the moving base 13! The motor 15 is connected via f414.

Reference numeral 16 denotes a pair of guide rails on both sides arranged in the vertical direction (Z-axis direction) on the front surface of the movable base 13. Reference numeral 17 denotes a support body movably engaged with the guide rail 16, and this support body 17 can be moved in the left-right direction. consists of an extended structure.

A servo motor 19 is connected to this support 17 via a screw-type feed mechanism l8.

On the front side of the support body 17, dovetail-shaped guides 1 to 20 are provided in the left and right direction, and this dovetail-shaped guide 20 has a large number (4 in one example) of housings 21... - Arrange them in parallel.

To explain further with reference to FIG. 3, 22... is a lifting guide provided on the front surface of the mounting base 21. A is a main shaft head that engages with the lifting guide 22 via slite bearings 23, 23. The head FA is controlled by a motor 25 with a spindle 24 facing downward, and a cylindrical gating 26 that surrounds and supports (built-in) the motor 25.

A processing cutter T is attached to the lower end of the spindle 24 via a chuck 27. Further, a brush 28 is attached to the lower end of the casing 26 so as to cover the outer periphery of the processing blade T.

Furthermore, an air passage a is formed in the casing 26 so as to surround the outer circumference of the motor 25, and one end of this air passage a is connected to the processing cutter T surrounded by the brush 28 described above.
The other end passes through the outer wall of the casing 26 and opens C toward the rear of the spindle head B, forming a substantially elbow-shaped flow path.

The opening C facing the rear shown in "2" is the mounting base 21 mentioned above.
．． It corresponds to the front surface of the support body 17 in the horizontal direction.

Next, 29 is the mount 1 and metal fittings 3 at the upper end of the mounting base 21.
A pneumatic cylinder that is a moving operation member placed downward at 0
31 is a piston rod of the pneumatic cylinder 29, which is connected to the upper end of the spindle head A via a vertical adjuster iB.

The above-mentioned pneumatic cylinder 29 sets the spindle head A to the upper end retracted position when the piston rod 31 is retracted.
Operate the movement so that it is set at the lower end machining position during the extension operation.

The above-mentioned vertical adjustment mechanism B includes a threaded portion 32 provided at the tip of the piston 1 to the rod 31, and a nut I screwed into this threaded portion 32.
- A gear case 34 that supports the passive gear 33 freely in rotation and is fixed to the upper end of the spindle head A.
, a drive gear 35 that meshes with the passive gear 32, and a handle 36 wheel that rotates the drive gear 35, and adjusts the initial mounting position of the spindle head A with respect to the piston rod 31 and sets the machining position.

Next, 37 is a cover plate provided to cover the hole 38 of the mounting base 21; 39 is a sliding cover plate provided to cover the front surface of the support 17; 40 is a hollow chamber provided within the support 17; 41 An intake pipe is provided to protrude forward from the cover plate 37, and the intake port d at the tip corresponds to the opening C of the air passage a, and the rear end communicates with the hollow chamber 40.

■0 The above-mentioned intake port d communicates with the opening C when the spindle head A is in the processing position (see Figure 3), and is blocked from the outside air by corresponding to the outer wall of the casing 26 when the spindle head A is in the retracted position. Configure the valve mechanism to do so. (See Figure 4) 42 is a discharge port at the other end that communicates with the hollow chamber 40. 43 is a duct hose connected to the discharge port 42.
It is connected to one method.

In addition, 1) ``Written Tori (= 1 haes 21-) 34
It is assumed that a screw-feed type adjustment stage (not shown) is provided for moving the single-mount navels 1 to A to the same direction as the dovetails 1 to 20 and adjusting the intervals therebetween individually.

The oval of the dust collector according to one embodiment is as described above, so when processing the workpiece W, the spindle head A to be used is
The pneumatic cylinder 29 is operated under NC control, and the piston rod 31 is extended.

By this extension operation, the corresponding spindle head A moves to the processing position as shown in Fig. 3, and the remaining spindle heads A...
・ is set to the retracted position as shown by the imaginary line in the figure.

The spindle head A in the above machining position has its air passage a
The other end opening C matches the intake port d, opens the valve mechanism, and communicates with the hollow chamber 40 of the support 17. In addition, the main shaft head F A in the retracted position has an opening C at the other end of the air passage a.
corresponds to the vertical wall of the outer periphery of the casing 26, and the intake port d communicating with the hollow chamber 40 is closed like the fourth [E].

Therefore, when the motor 25 is driven to cut the workpiece W using the machining blade T in the state described in item 2, and the vacuum means (not shown) is driven to suck the hollow chamber 40, the powder is generated within the brush 28. The chips flow through the opening L at one end, the air passage a, the opening C at the other end, the suction port d, and the hollow chamber 40, and are discharged to the outside from the discharge port 42. Moreover, since the air flow at this time acts on the peripheral wall of the motor 25, the motor 25
can exert a cooling effect. Therefore, it is possible to effectively suppress a decrease in rotation accuracy of the spindle 24 and a decrease in motor efficiency due to heat generation.

In addition, in the above-mentioned chip discharge path, the other end opening C is provided toward the rear from the spindle head A, and the intake port d is oriented horizontally so as to be connected to this, so that the vertical two-ri portion is Allows for short, efficient, and smooth chip removal.

Furthermore, in the spindle head A... which is in the retracted position, each intake port d... corresponding to this is closed.
There is no wasted air flowing in from there. Therefore, powerful dust collection can be performed without reducing vacuum efficiency.

In the above embodiment, the openings C are provided on the back side of all the spindle heads A, that is, toward the rear. However, when they are arranged in parallel, an opening can be provided at the rear in the left-right direction or around the left-right direction at one or both of the ends.

Further, the opening C may be provided facing forward as shown in the fifth []. In the embodiment shown in FIG. 5, the same or equivalent members as those in the embodiment shown in FIGS. In FIG. 5, 44 is a horizontal box forming the hollow chamber 40, and 45 is a sliding cover plate that closes the opening of the box 44.

Further, although the hollow chamber 40 having the intake port d and the discharge port 42 was constructed by directly using the support body 7, it was constructed as a separate body attached to the support body as in the embodiment shown in FIG. You may.

Further, as shown in FIG. 6, connection boxes 41a... are provided behind each intake cylinder 4l..., and these connection boxes 41. a...
* may be connected by slide tubes 50a and 50b to form a hollow chamber 40 inside. Further, in the case of this embodiment, a bellows type telescopic hose can be used in place of the slide tubes 50a, 501).

(Effects of the Invention) As described above, in the dust collector of the present invention, the air passage provided in the gating is opened on the side of the main shaft head 1~, and chips are removed from the intake port 14 horizontally corresponding to this opening. Since the dust removal path is divided by J-
The amount of dust is reduced and the distance is shortened, making it possible to perform powerful and efficient dust collection. In addition, according to this Yokosei, the connecting pipe and intake tank 1 to 1 are placed above the main shaft head as in the past.
Because we don't need . 4'i) Construction can be greatly simplified and costs can be reduced.

In addition, it is expected that the design can be improved by omitting structural members.

In addition, the dust collector of the present invention has a saw shaft head 1 with a horizontal spindle in addition to a router head 1 with a vertical spindle.
, can be applied without exception to planer cylinder head 1, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the dust collecting device for woodworking machines, etc. according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a side view, and Fig. 3 is a vertical sectional side view showing the structure of the main shaft head I. Figure 4 is an explanatory diagram showing the operating state of the valve mechanism Figures 5 and 6
The figure is a longitudinal 1111 side view showing another embodiment of the dust collector. FIG. 7 is a longitudinal sectional front view of the main part taken along the line X--X in FIG. 6. 1: Frame 3・Table body W. Work 12, 1
6・Kai 1・Rail 13 Moving base 17 Support body 20: Dovetail guide 21 Take {-1 base
22 Lifting guide A Main shaft head I~ 24 Spin 1
～Le 25・Motor 26・Casing T. Machining knife 2
8: Brush a: Air passage l]: One end open C: Other end open d Intake [129/Pneumatic cylinder (moving operation member) 3l: Piss I/N rod B] 2 lower adjustment mechanism 37
・Cover plate 40: Hollow chamber 41・Intake cylinder 42 Discharge port 43 Tak 1・Bose 44: Solid body 41a: Connection box 50a, 50b・Slide tube

Claims (1)

[Claims] Spindle heads constituted by a motor having a spindle and a cylindrical casing surrounding the outer periphery of the motor are arranged in parallel on a horizontally extending support, and these spindle heads are operated to move. In a processing machine that is configured to switch between a workpiece processing position and a retracted position in association with members, an air passage is formed in the casing, one end of which is opened toward the processing position of the processing blade, and the other end is opened toward the processing position of the processing blade. A hollow chamber is provided which opens toward the lateral position of the spindle head and has an inlet corresponding to the other end opening and an outlet communicating with the vacuum means. A dust collection device for woodworking machines, etc. that has a valve mechanism that communicates when moving to the workpiece processing position and shuts off when moving to the retreat position.