JP2000190160A - Cover device of machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen leakage to the outside of the machining and operating noises generated from a machine tool. SOLUTION: Approx. the whole of a machining center M is covered with a covering device 1 consisting of frame members and panels, and a soundproof sheet is interposed between a sliding door 32A or a shiplap type door 47 to block openings A2-A4 and a frame to form the openings A2-A4, and therefore, the sound isolating function at the openings is higher than conventional, and it is possible to prevent the machining noises and/or motor sounds generated by the machining center M from leaking to the outside effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover device for a machine tool, and more particularly to a cover device having excellent soundproof performance.

[0002]

2. Description of the Related Art As a conventional cover device for a machine tool, there is known a cover device in which a movable column is arranged in an inner space of a box-shaped casing and a partition wall device is provided in the column to partition the inner space into a front side and a rear side. (Japanese Patent Laid-Open No. 10-138085)
issue). In such a cover device, generally, the front cover wall and the left and right side cover walls exchange work with the machining area of the machine tool and perform maintenance such as a tool changing device of the machine tool. Is provided, and such an opening is openably and closably closed by a sliding door in a left-right direction or a drop-in door.

[0003]

For example, as shown in FIG. 12, a conventional drop-in door has a groove S in which an upward locking portion R is formed above an opening Q of a cover side plate P made of sheet metal. Then, after the catch U of the upper part of the dropping door T is fitted into the groove S, the lower end of the dropping door T is dropped into the groove V formed at the lower end edge of the opening Q, and the opening Q
Is blocking. According to this, between the opening Q and the drop-in door T, there is no soundproofing mechanism for blocking the sound from the inside of the cover, which is a structure that cannot be said to have a soundproofing function. Had become. The same applies to a structure in which the opening is closed by the left and right sliding doors. An object of the present invention is to solve the problem of the above-mentioned conventional cover device, and to provide a cover device for a machine tool having excellent soundproof performance. Another object of the present invention is to provide the cover device in which an opening provided in the cover can be easily formed. Still another object of the present invention is to provide the cover device that facilitates installation of the cover device on a machine tool.

[0004]

In the present application, a machine tool is
A cover device for a machine tool surrounded by a front cover portion, left and right side cover portions, and an upper cover portion, wherein an opening portion is provided in the cover portion, and the opening portion is closed and opened by a closing member. A soundproof member is interposed between the closing member and the opening (claim 1). In this configuration, since the opening and the closing member are closed via the soundproof member, the soundproof function is increased. A frame member such as an aluminum sash is framed so as to divide the front cover portion, the left and right side cover portions, and the upper cover portion into a plurality of wall regions. The part was an opening, and the panel was fixed to the other wall area (claim 2). In this configuration, since a part of the wall surface area of the cover frame is left as an opening, the opening is formed by combining the frame material, compared to a conventional type in which a necessary portion of a sheet metal is cut off. Is formed, and the opening can be formed by closing the unnecessary portion.

More specifically, the closing member for closing the opening of the front cover is a sliding door in the left-right direction, and the closing member for closing a part of the opening of the left and right side cover is a straight drop-in door. (Claim 3). Sliding door, drop door,
A soundproof sheet as a soundproof member is interposed between the frame member and the opening forming the opening. In addition, the cover device of the present application includes a left and right position regulating piece that regulates the left and right positions of the cover frame body upwardly from the left and right placing members in front of the base of the machine tool and continuously mounting the placing members respectively on the left and right. Starting up, from the rear end of the left and right mounting members and the front mounting member,
The front and rear position regulating pieces for regulating the front and rear positions of the cover frame are raised, and the lower peripheral portion of the cover frame is placed on the mounting surface surrounded by the left and right and front and rear position regulating pieces. . In this structure, since the positioning of the cover frame is performed only by placing the cover frame on the mounting member, the mounting to the machine tool is easy.

Further, the cover device of the present application is provided with a rear cover portion corresponding to the rear projecting portion of the rear portion of the machine tool and closing a space between the rear projecting portion and the left and right side cover portions. With this configuration, the sound transmitted to the rear of the machine is also effectively blocked, and the sound leakage is further reduced. In this case, since a ventilation fan for discharging heat inside the cover device is provided, heat generated by the motor and the like inside the machine is forcibly discharged to the outside (claim 7).

[0007]

1 and 2, a cover device 1 according to the present invention includes a front cover portion 2 surrounding the front of a machining center M, a left and right side cover portion 3 covering the left and right sides of the machining center M, An upper cover part 4 covering the upper part of the machining center M, and a rear cover 5 provided at a position corresponding to a rear protruding part of the machining center M (here, an electrical box 103 containing an electrical device for machine control). ing. The cover device 1 is bilaterally symmetric. In the cover frame 6 of the cover device 1 which is framed with a frame material such as an aluminum sash, the left and right lower frames 7, 8
And a front lower frame 9, and four vertical frames 10 to 13 are respectively raised from the left and right lower frames 7 and 8. The vertical frame 10, which forms a part of the front cover 2, has an upper portion bent rearward and connected to an intermediate portion of the vertical frame 11. The remaining vertical frames 11, 1
2 and 13 have the upper part bent toward the machine center,
Upper front-back direction frame 14 whose tip forms a part of upper cover portion 4
Connected to.

A horizontal frame 1 connecting the vertical frames 11, 12, and 13 is located at a predetermined height from the lower frames 7, 8.
5 and 16 are provided. Another vertical frame 17 protrudes upward from the horizontal frame 15, and its upper end is bent and connected to the upper front-rear direction frame 14 like the vertical frame 11 and the like. At substantially the same height as the upper base 102 on which the tool magazine 101 of the machining center M is mounted, horizontal frames 18, 19 connecting the vertical frames 11, 17, 12, 13 are further provided.
20 are provided. The vertical frames 10 and 11 are also connected by a horizontal frame 21. The left and right vertical frames 10 and 10 are
23, between the lower horizontal frame 22 and the front lower frame 9,
They are connected by vertical frames 24, 24. The vertical frame 24 and the corresponding vertical frame 10 are further connected by a horizontal frame 25, respectively. Thus, the front cover part 2, the left and right side cover parts 3, and the upper cover part 4 are divided into a plurality of wall regions surrounded by the vertical frame and the horizontal frame. Similarly, the rear cover portion 5 is also divided into a plurality of wall regions by framing the vertical frame 13, the vertical frame 26, the rear lower frame 27, and the horizontal frame 29. Vertical frame 25, 2
5, the electrical box 103 of the machining center M
Project backward.

The wall area is divided into a wall area functioning as an opening and a wall area not functioning as an opening. The opening A1 of the front cover portion 2 is a region necessary for attaching and detaching the work, and is a portion surrounded by the left and right vertical frames 24, the lower front frame 9, and the horizontal frame 22. The opening A2 of the side cover 3
A4 is a region required for maintenance of the machining center M, here, a side portion of a column surrounded by the horizontal frames 18 and 15 and the vertical frames 11 and 17, a lower frame 8, a horizontal frame 15 and a vertical frame 11, 12, the lower part of the lower side of the column surrounded by the vertical frame 1
2, 13 and the side of the electrical box surrounded by the horizontal frames 16 and 20. As shown in FIGS. 4 and 5, a rail 30 is fixed to the inside of the front lower frame 9 over substantially the entire length of the opening A1 of the front cover 3. A guide rail 31 is also mounted inside the horizontal frame 22. The pair of left and right sliding doors 32 are formed by fitting up and down, left and right vertical frames 33 to 36 made of an aluminum sash shape member, and fitting a transparent polycarbonate plate 37 therein.
Are guided by the rail 30, and a guide member 38 attached to the upper frame 33 is guided by the guide rail 31, and thus the sliding doors 32 can be opened and closed to the left and right, respectively. Vertical, horizontal frames 9, 22, forming the opening A1;
A soundproof sheet 3 as a soundproof member surrounding the opening A1 is provided between the sliding doors 24, 24 and the outer surface of the sliding door 32.
9 is stuck so that the front end of the soundproof sheet 39 contacts the front surface of the closed door. Further, a rubber packing 40 that is pressed against each other when the door is closed is provided in the contact portion of the sliding door 32.

The opening A2 of the side cover 3 can be opened and closed by a single sliding door 32A. The sliding door 32A is
It is provided so that it can be opened and closed by a guide structure using a rail 30 or the like similar to the sliding door 32. A soundproof sheet 39 similar to the above is attached so as to surround the entire periphery of the opening A2 in the same manner as the opening A1, and comes in contact with the outer surface of the sliding door 32A in the closed state. Since the openings A3 and A4 are opened and closed by a similar sturdiness door structure, the description will be made with reference to the opening A3. As shown in FIG. 6, the horizontal frame 15 and the lower frame 8 have trapezoidal grooves 15a and 8a at the center in the inward and outward directions.
The vertical frames 11 and 12 have grooves 11a and 12a at portions corresponding to the grooves 15a and 8a.
2a is closed by a closing member 45. Upper and lower portions of a dropping door 47 having a width slightly smaller than the interval between the opposing closing members 45 and slightly larger than the distance between the opposed end surfaces of the horizontal frame 15 and the lower frame 8 enter the grooves 15a, 8a. Thus, the opening A3 is closed. Drop door 47
And the grooves 15a and 8a are such that the engagement margin L1 between the dropping door 47 and the lower frame 8 is smaller than the lifting amount L2 of the dropping door 47 with respect to the groove 15a, and the upper part of the dropping door 47 is formed by the groove 15a. , The lower end of the door 47 is inserted into the groove 8a to close the opening A3,
From the closed state, lift the groove 8a in the same manner as described above.
The lower end of the door is removed from the door and can be removed to the outside.

On the inner surface of the opening A3 opposite to the vertical frames 11, 12, a positioning frame 50 is provided inside the closing member 45.
Are provided integrally between the horizontal frame 15 and the lower frame 8. On the front surface of the positioning frame 50, a soundproof sheet 39a having a bent shape is provided over the entire length in the vertical direction, so as to be pressed against the left and right inner surfaces of the dropping door 47 fitted in the grooves 15a and 8a. Also, in the horizontal frame 15 and the lower frame 8,
The same soundproof sheet 39 as described above is pressed into contact with the upper and lower inner surfaces of the dropping door 47 in a state of being fitted into the grooves 15a and 8a,
Both of the soundproof sheets 39a are configured to close the space between the surroundings of the drop door 47 and the corresponding frame.

The remaining wall surfaces in the front and rear and left and right covers 2, 3 excluding the openings A1 to A4 described above are wall surfaces C1 in which the transparent polycarbonate panel 41 is irremovably fitted. Or the wall area C in which the aluminum panel 42 is irremovably fitted.
It is 2. Each panel 4 in these wall areas
Reference numerals 1 and 42 are attached to panel fitting grooves of vertical and horizontal frames via a gasket 56 or a sealing material in the same manner as a general sash frame and glass attached to the sash frame (see, for example, FIG. 5).

Next, in the upper cover part 4, all the wall surfaces are covered with a fixed panel. Each panel in the front and rear wall areas C3 is a plate-shaped polycarbonate panel 41, and is fixed to the panel fitting groove of the frame material via a gasket as described above. In addition, the side panel is formed in a curved surface following the bending of the vertical frame, the panel in the wall surface region C4 is closed by a curved polycarbonate panel 41a, and the wall surface region C5 is formed by a curved aluminum panel 42a. It is blocked. These panels 41a and 42a are provided inside the upper bent portions of the vertical frames 11 to 13 and 17, respectively.
As shown in FIG. 8, the support frame 55 is placed and abutted on the outer surface of the support frame 55 provided so as to follow the bends 3 and 17, and the front end and the lower end thereof are connected to the horizontal frame (upper front-back direction frame) 14 and the horizontal frame. 18 (19,
20) is inserted into the groove 14a (18a), and in the fitted state, the pin member 65 is inserted through the horizontal frame 14 and the horizontal frame 1 is inserted.
The groove 14a (18)
No gasket is interposed between a) and panels 41a and 42a. With this configuration without gasket,
Panel mounting is simple. The upper cover 4 is provided with a ventilation fan 58 for releasing heat generated inside the cover device 1. Further, from the front panel of the upper cover part 4, a support arm 105 for supporting the operation panel 104 penetrates from the inside of the cover 1 and is exposed to the outside.

A mounting member 60 is continuously attached to the base B of the machining center M so as to surround the left, right and front sides.
The left and right position regulating pieces 61 for regulating the position of the left and right of the cover frame body 6 are raised upward from the left and right placing members 60, and the cover is moved upward from the rear ends of the left and right placing members 60 and the front placing member 60. A front and rear position regulating piece 62 for regulating the position of the front and rear of the frame 6 is raised. These left / right and front / rear position regulating pieces 61, 6
On the mounting surface surrounded by 2, lower right and left frames 7 of the cover frame 6,
8. By placing the front lower frame 9, the cover frame 6 is positioned on the base B in the front, rear, left and right directions, so that the work of attaching the cover frame 6 to the base is easy. In such a configuration, the machining center M is substantially entirely covered by the cover device 1, and furthermore, the sliding doors 32, 32A and the karmic doors 47 for closing the openings A1 to A4, and the opening A1.
Soundproof sheets 39, 39a between the frame and the frame constituting A4.
, The soundproof function at the openings A1 to A4 is higher than before, and the processing noise and motor noise generated at the machining center M are effectively prevented from leaking to the outside. In addition, since the heat caused by the rotation of the motor and the main shaft inside is exhausted to the outside by the ventilation fan, the heat does not stay inside the cover.

[0015]

As described above, according to the present invention, since the opening and the closing member are closed via the soundproofing member, the soundproofing function is enhanced, and the processing and machine operation noise is reduced to the outside. Can be prevented. In the present application, an opening is formed by combining frame materials, and an opening can be formed by closing an unnecessary portion. In the device of the present application,
Since the positioning of the cover frame is performed only by placing the cover frame on the mounting member, the mounting to the machine tool is easy.

Further, according to the present invention, since the rear cover is provided to close the space between the rear protruding portion and the left and right side covers, the sound transmitted to the rear of the machine is effectively blocked, and the sound leakage is further reduced. Since a ventilation fan for discharging heat inside the apparatus is provided, heat generated by the motor and the like generated inside the machine is forcibly discharged to the outside, and it is possible to prevent the heat from being trapped inside.

[Brief description of the drawings]

FIG. 1 is a front view of a machining center provided with a cover device of the present application.

FIG. 2 is a side view of FIG.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is an enlarged cross-sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 1;

FIG. 6 is an enlarged cross-sectional view taken along line VI-VI of FIG. 2;

FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG. 2;

FIG. 8 is an enlarged cross-sectional view taken along line VIII-VIII in FIG. 2;

FIG. 9 is an enlarged cross-sectional view taken along line IX-IX of FIG. 1;

FIG. 10 is a plan view of a mounting member.

11 is a sectional view taken along the line XI-XI in FIG.

FIG. 12 shows a conventional drop-in door structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover apparatus 2 Front cover part 3 Left right side cover part 4 Upper cover part 5 Back cover part 6 Cover frame 32, 32A Sliding door 39, 39a Soundproof sheet (soundproof member) 41 Polycarbonate panel 42 Aluminum panel 47 Drop-in door 58 Ventilation fan Reference Signs List 60 mounting member 61 left and right position regulating pieces 62 front and rear position regulating pieces A1 to A4 opening

Claims (7)

[Claims] 1. A cover device for a machine tool that surrounds a machine tool with a front cover portion, left and right side cover portions, and an upper cover portion, wherein the cover portion has an opening, and the opening can be opened and closed by a closing member. A cover device for a machine tool, wherein a soundproof member is interposed between a closing member and an opening. 2. A frame member such as an aluminum sash is framed so as to divide the front cover portion, the left and right side cover portions, and the upper cover portion into a plurality of wall regions. 2. A cover device for a machine tool according to claim 1, wherein a part of the wall surface area is an opening, and a panel is fixed to the other wall area. 3. The closing member that closes the opening of the front cover is a sliding door in the left-right direction, and the closing member that closes a part of the opening of the left and right side cover is a flap-down door. 3. The cover device for a machine tool according to claim 2, wherein: 4. A machine tool according to claim 3, wherein a soundproof sheet as a soundproof member is interposed between the sliding door, the drop-in door, and a frame member forming an opening that closes the door. Cover device. 5. A mounting member is continuously attached to the left and right of the base of the machine tool in front of the base, and the mounting members are moved upward from the left and right mounting members.
Raise the left and right position regulating pieces that regulate the position of the left and right sides of the cover frame, and raise the front and rear position regulating pieces that regulate the front and rear positions of the cover frame upward from the rear ends of the left and right placing members and the front placing member. The cover device for a machine tool according to any one of claims 2 to 4, wherein a lower peripheral portion of the cover frame body is mounted on a mounting surface surrounded by the right, left, front and rear position regulating pieces. 6. The machine according to claim 1, further comprising a rear cover portion corresponding to the rear projecting portion of the rear portion of the machine tool and closing a space between the rear projecting portion and the left and right side cover portions. Machine cover device. 7. The cover device for a machine tool according to claim 6, further comprising a ventilation fan for discharging heat inside the cover device.