JPH0537439U - Dust collector of machining center - Google Patents

Abstract

(57) [Abstract] [Purpose] In the dust collector of the machining center, there is no interference with the work and dust is also collected from the spindle part. Make it possible to prevent dust from entering. [Structure] In a machining center, an overall cover for preventing scattering of abrasive grains and dust that entirely covers the side surface and the upper surface of the sliding portion of the table and the spindle portion, and the abrasive grain from the ceiling portion of the overall cover and / or the side surface portion of the spindle head A dust collector that sucks out dust and dust, a sliding cover that is provided along each sliding part and has a minimum gap, and an air blowing amount that is smaller than the air intake of the dust collector. It is a dust collector that is composed of a blower that blows in air.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collector for protecting machines and workers in a machining center.

[0002]

[Prior Art]

 Along with the complexity of machining and diversification of materials, grinding processing by machining centers and non-metal processing have come to be frequently used. However, the abrasive grains and dust associated with this type of processing not only enter the sliding parts and bearing parts of the machine and damage the machine, but also adversely affect the body of the operator. In order to reduce and prevent the adverse effects of such abrasives and dust on machines and operators, various dust collectors are installed in the machining center.

[0003] Conventional dust collecting devices for machining centers are those that have a dust collecting suction port attached to the spindle to collect dust, or a cover that is attached to the entire cover to prevent dust from coming out to the outside. Some dust is sucked from the ceiling by a dust collector. There are also sliding covers and bearings with simple covers or bellows to prevent dust from directly entering.

However, the above-described conventional dust collector has the following problems. (1) The dust collecting suction port and the work are likely to interfere with each other, which hinders smooth machining. (2) Depending on the machine conditions, dust is collected only from the ceiling and not sucked from the spindle, so the dust collection efficiency is poor. (3) Dust adheres to the cover just by surrounding it with a cover, and it takes time to collect dust. (4) Intrusion of fine dust from the gap is unavoidable.

[0005]

Therefore, in order to solve the above-mentioned problems, the present invention does not interfere with the work and also collects dust on the spindle part to improve the dust collection efficiency and reduce the labor of dust collection. It is an object of the present invention to provide a dust collector for a machining center that can prevent the intrusion of fine dust through the gap without fail.

[0006]

[Means for Solving the Problems]

 In the machining center, the above-mentioned problem is to prevent the scattering of abrasive grains and dust that entirely covers the side surface and the upper surface of the sliding part and the spindle part of the table, and the ceiling part of the whole cover and the side part of the spindle head. A dust collector that sucks out particles and dust, a sliding part cover that is installed along each sliding part and has a minimal gap, and a sliding part cover that sets the air flow rate to be smaller than the air intake amount of the dust collecting device. This is achieved by a dust collector consisting of an air blower that blows air into the interior of the.

[0007]

[Action]

 In the machining center dust collector of this invention, the entire cover prevents abrasive particles and dust from scattering to the outside, and at the same time, a large amount of air is blown from the blower into the sliding part cover with a minimal gap to apply pressure. The generated air is always flown out through a small gap to prevent dust and the like from entering the sliding part. A dust collector collects dust from both the ceiling of the overall cover and the side of the spindle head. However, set the amount of air intake of the dust collector to be larger than the amount of air blow to prevent leakage of fine dust from the gap of the overall cover.

[0008]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the drawings illustrating an embodiment.

FIG. 1 is an overall perspective view of a machining center equipped with a dust collector according to the present invention. Overall covers 10 and 12 are attached to cover the side surface and the upper surface of the sliding portion of the table and the spindle portion. In particular, an expandable Y-axis ceiling bellows type cover 16 is provided on the lateral upper surface of the spindle unit 14 that moves along the Y-axis. These covers prevent cutting dust, abrasive grains, and dust generated during machining from scattering outside the machining center. In addition, a window 10a having a wide area and into which a colored transparent resin glass or the like is fitted may be provided so that the inside of the entire cover 10 can be seen better.

FIG. 2 is a vertical sectional view of the machining center shown in FIG. A head hood 22 having a suction port 22a is provided on a side surface of a spindle head (not shown) for sucking out abrasive grains and dust generated around the table 20. The upper portion of the head hood 22 projects outward from the ceiling cover 12 along the spindle head, and the hollow passage 22b of the head hood 22 communicates with the dust collector 30 via the flexible duct 26, the relay duct 27, and the distribution pipe 28. .. Further, the rear ceiling cover 24 is provided with another suction port 24a, which is directly connected to an external distribution pipe 28 and communicates with a dust collector 30 via a flexible duct 26. A sliding surface cover 21 interlocking with the table 20 is provided on the side of the table 20 to directly prevent intrusion of cutting chips, abrasive grains, etc. into the rail.

FIG. 3 shows a circuit diagram of the dust collector of FIG. In FIG. 3, as a generalization, a flexible duct 26 is also interposed between the suction port 24a of the rear ceiling cover 24 and the distribution pipe 28. A damper 29 is provided at each connecting portion of the distribution pipe 28 so that the air flow rate ratio between the spindle portion and the rear ceiling portion can be controlled.

FIG. 4 shows another embodiment of the dust collector of the present invention. Sliding part covers 41 and 43 with minimum clearances are provided along the Z-axis and Y-axis sliding parts of the spindle head 40, and the air ducts 42 and 44 are mounted therein. It has been burned. Air is blown into the spindle head Z-axis sliding portion cover 41 from a blower 46 via a blower duct 42 and a hose 45. The air blower 46 is provided with an air flow rate adjusting valve 47 to adjust the air flow rate to each hose 45. The sent air is blown into the sliding part cover 41 from the lower end opening 42a of the duct 42, increases the pressure inside the cover, and flows out from the opening 41a and the gap 41b provided at the lower end to prevent the intrusion of dust. , Prevents dust and the like from adhering to the Z-axis sliding portion.

Similarly, air is blown into the spindle head Y-axis sliding portion cover 43 from a blower 46 via a blower duct 44 and a hose 45. The sent air is blown into the sliding cover 43 through the openings 44a provided at intervals in the axial direction of the duct 44, increases the pressure inside the cover, and flows out from the gap 43a to prevent dust from entering. Prevents dust etc. from adhering to the Y-axis sliding part.

A blower duct 49 is provided along the X-axis sliding portion of the table 20, that is, below the rail 48, and air is blown from the blower 46 via the hose 45. Air entering from one end of the duct 49 blows out from openings 49a provided at intervals in the duct axial direction. A sliding surface cover 21 that interlocks with the table 20 is provided above the rails 48 to directly prevent intrusion of cutting chips, abrasive grains, and the like, and to help the pressurizing effect of the air blown out from the duct 49. do. As a result, the pressure in the space covered by the sliding surface cover 21 is increased, and cutting chips, abrasive grains, etc. are prevented from entering the sliding portion.

Further, the apparatus of FIG. 4 can be more effective by combining with the dust collecting apparatus described in FIGS. In this case, the air flow rate adjusting valve 47 of the blower 46 is controlled so that the air flow rate is smaller than the air intake rate of the dust collector 30, and fine dust from the gaps of the entire covers 10, 12, 16, 24 is removed. Leakage can be prevented. In this embodiment, since the electric blower 46 is used, a large amount of air can be sent, which is more economical than the compressor.

FIG. 5 also has a dust collection function of sucking abrasive grains and dust from the side surface of the spindle head and a blower function of preventing air from entering by blowing air into the space along the Z-axis sliding part to pressurize it. The Z-axis sliding part cover 50 is shown. The cover 50 is attached to the spindle head by bolts 54, and as shown in the cross section of FIG. 7, a dust collecting passage 51 and an air blowing passage 53 extend axially adjacent to each other. As shown in FIG. 8, the lower end surface of the cover 50 has a suction port 51a of the dust collecting passage 51, and ascends in the cover 50 as shown by a chain line in the figure to reach the flexible duct connection port 51b of FIG. Abrasive particles and dust on the side surface of the spindle head are sucked out to the dust collector by the dust collecting passage 51. On the other hand, the blower passage 53 descends from the hose connection port 53a connected to the hose from the blower through the inside of the cover 50 as shown by the chain line in the figure, and reaches the spindle motor fan suction port 53b provided in the middle thereof. The air sent from the blower is blown into the cover 50 from here, increasing the pressure in the cover and preventing dust and the like from entering the sliding parts. With such a configuration of the sliding portion cover 50, the dust collecting function and the air blowing function can be easily accommodated in one sliding portion cover.

9 and 10 are a front detailed view and an enlarged view of the arrow D of the X-axis sliding portion of the table 20 in the embodiment of FIG. A blower duct 49 is arranged below the X-axis ball screw 61 that drives the table 20 (not shown). A drive motor 62 is attached to the right end of the ball screw 61 in the figure. The air blown from the blower 46 (FIG. 4) enters from the hose 45 into the opening at one end of the duct 49, and is blown into the space near the sliding portion from the outlets 49a provided at intervals in the axial direction of the duct 49. It As a result, the pressure in the space covered by the sliding surface cover 21 is increased, air is ejected from the clearance 21a to prevent the dust from entering the internal space, and the dust adheres to the rail 48, the X-axis ball screw 61, and the like. Prevent.

FIG. 11 is a detailed front view of the Y-axis sliding portion of the spindle head in the embodiment of FIG. The Y-axis ball screw 71 provided on the column 70 is driven by a drive motor 72 attached to the left end of the figure. A ventilation duct 44 is arranged above the Y-axis ball screw 71. The air blown by the blower 46 (FIG. 4) from the hose connection port 44b located at the left end of the duct 44 in the figure is blown out from the blowout port 44a arranged at intervals in the axial direction of the duct 44, and the sliding portion cover is covered. 43 Increase the pressure in the internal space (Fig. 4) to prevent dust from entering the sliding parts.

[0019]

[Effects of the Invention] As described above, the machining center dust collector of the present invention prevents the abrasive particles and dust from being scattered to the outside by the whole cover to improve worker's safety and at the same time, to prevent the spindle part I try not to interfere with the smooth processing in. In addition, the dust collection efficiency is improved by penetrating the entire cover and sucking it out from the side surface of the spindle.

Furthermore, by blowing a large amount of air with a blower into the sliding part cover with the smallest possible clearance, it is possible to prevent the intrusion of fine dust into the sliding part cover, and at the same time, to send cold air to the cover. It also has a heat dissipation effect of releasing the storage heat of the internal heat generating part. Furthermore, it is possible to reduce the mixing of dust into the cutting water, and it is possible to extend the life of the cutting water supply system and the rail.

The dust collector of the present invention is not only used for grinding metal materials, but also for collecting fine dust when processing graphite, concrete, bakelite (phenol resin), ceramics, glass, heat insulating materials (wood), etc. It can also handle dust.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a machining center equipped with a dust collector according to the present invention.

FIG. 2 is a vertical cross-sectional view of a machining center having an entire cover having suction ports on the side surface and the ceiling of the spindle head.

FIG. 3 is a circuit diagram of a dust collector corresponding to FIG.

FIG. 4 is a vertical cross-sectional view of another embodiment of a machining center having a sliding portion cover for each of the spindle portion and the sliding portion of the table.

FIG. 5 is a side view of a Z-axis sliding portion cover of the spindle portion.

6 is a view on arrow A of FIG.

7 is a cross-sectional view taken along the line BB of FIG.

FIG. 8 is a view on arrow C of FIG.

9 is a front view of an X-axis sliding portion of the machining center shown in FIG.

FIG. 10 is an enlarged view of FIG. 9 as viewed in the direction of arrow D.

11 is a front view of a Y-axis sliding portion of the machining center shown in FIG.

[Explanation of symbols]

 10, 12 Overall cover 14 Spindle part 16 Y-axis ceiling bellows type cover 20 Table 21 Sliding surface cover 22 Head hood 22a, 24a, 51a Suction opening 24 Rear ceiling cover 26 Flexible duct 30 Dust collector 41, 50 Z-axis sliding part cover 43 Y-axis sliding part cover 42, 44, 49 Blower duct 42a, 44a, 49a Blow-out port 45 Hose 46 Blower 48 Rail (X-axis sliding part) 51 Dust collecting passage 53 Blower passage 61 X-axis ball screw (X Shaft sliding part) 71 Y-axis ball screw (Y-axis sliding part)

Claims (3)

[Scope of utility model registration request] 1. In a machining center, from an overall cover for preventing scattering of abrasive grains and dust that entirely covers the side surface and the upper surface of a sliding portion of a table and a spindle portion, and a ceiling portion of the overall cover and / or a side surface portion of a spindle head. A dust collector that sucks out abrasive particles and dust, a sliding part cover that is provided along each sliding part and has a minimum gap, and a blowing amount that is set to be smaller than the air intake amount of the dust collecting device. A dust collector consisting of an air blower that blows air inside. 2. The blower device includes an electric blower.
The dust collector according to 1. 3. An overall cover that entirely covers the table and the spindle, a sliding part cover that covers the sliding part of the table and / or the spindle, a blower that blows air into the overall cover, and the overall cover. In a dust collector of a machine tool including a dust collector that sucks out abrasive grains and dust together with air from inside, a blowout port of the blower is provided at a sliding portion of the table and / or a spindle covered with the sliding portion cover. The dust collecting device is provided so as to prevent abrasive grains and dust from entering the sliding part cover.