JP2007313577A - Machine_tool device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine_tool device in which an area of a face to be held for allowing a workpiece to be attached and detached through an opening can be widely secured in the machine_tool device that executes the attachment/detachment of the workpiece to/from the face to be held of a jig via the opening formed at a casing. <P>SOLUTION: The machine_tool device is constituted such that the jig 2 which has the face 10 to be held for holding the workpiece W, and a tool D which machines the workpiece W held by the face 10 to be held are arranged in the casing 3. The workpiece W is machined by the tool D while controlling a relative position between the tool D and the workpiece W, and the attachment/detachment of the workpiece W to/from the face 10 to be held is executed via the opening 5 formed at the casing 3. The face 10 to be held is composed of a plurality of the faces 10, 10 to be held that are directed in the direction of the opening 5 at a prescribed angle and adjacently arranged so as to intersect with each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a machine tool apparatus in which a workpiece is machined by a tool by controlling a relative position between the workpiece held by a jig and the tool.

  A conventional machining center (machine tool), for example, as shown in Patent Document 1, attaches a work (workpiece) to the front (held surface) of a work table device (jig) erected in the vertical direction, By rotating the work table device in the horizontal direction, the work by the drill can be processed from the two directions of the front side and the side surface of the jig.

  Further, a general machine tool is covered with a protective cover (housing) in order to prevent scattering of chips and cutting oil during processing. A door as shown in FIG. 1 is provided, and a user attaches and detaches a work (workpiece) to a work table device (jig) inside the protective cover from an opening when the door is opened.

Japanese Unexamined Patent Publication No. 2003-94264 (page 4, FIG. 1) JP 2006-55976 A (page 6, FIG. 1)

  However, in the machining center (machine tool) described in Patent Documents 1 and 2, the user can pass from the opening of the protective cover (housing) to the front surface (held surface) of the work table device (jig). A workpiece (workpiece) is attached, and the width of the work holding surface in the work table device is limited to the width of the front facing the opening, and many workpieces are processed using a machining center. In some cases, the number of work attachment / detachment operations increases, the attachment / detachment process becomes complicated, and work efficiency decreases.

  The present invention has been made paying attention to such a problem. In a machine tool device that attaches / detaches a workpiece to / from a holding surface of a jig through an opening formed in a housing, the opening is provided. An object of the present invention is to provide a machine tool device capable of ensuring a wide area of a held surface to which a workpiece can be attached and detached.

In order to solve the above-described problem, a machine tool device according to claim 1 of the present invention provides:
A jig having a held surface for holding the workpiece and a tool for processing the workpiece held on the held surface are arranged inside the housing, and the tool and the workpiece In the machine tool device, which processes the workpiece by the tool by controlling the relative position of the workpiece, and attaches / detaches the workpiece to / from the holding surface through an opening formed in the housing ,
The held surface is composed of a plurality of held surfaces that are arranged adjacent to each other so as to face each other at a predetermined angle in the direction of the opening and intersect each other.
According to this feature, the surfaces to be held face each other at a predetermined angle in the direction of the opening and intersect each other, so that the area of the surface to be held is ensured from the opening to the depth direction of the housing, and the user can see from the opening. The area of the held surface that can be accessed can be formed wide.

A machine tool device according to claim 2 of the present invention is the machine tool device according to claim 1,
The held surface is formed in a flat shape, and a top portion between at least two held surfaces adjacent to each other is arranged on the opening side.
According to this feature, the user can attach and detach the workpiece while viewing the workpiece from an oblique direction, so that the workpiece can be reliably installed.

A machine tool device according to claim 3 of the present invention is the machine tool device according to claim 1 or 2,
The predetermined angle is approximately 45 degrees.
According to this feature, the area of the surface to be held can be increased by about 1.4 times compared to a conventional surface to be held facing the direction of the opening, and about 45 degrees. The predetermined angle is in the vicinity of the limit of the angle at which the workpiece can be easily attached to and detached from the held surface from the opening, and the area of the held surface can be widened while ensuring the state of being easily attached and detached.

A machine tool device according to claim 4 of the present invention is the machine tool device according to claim 3,
The jig is pivotable in a horizontal direction, and the jig has a through-hole penetrating from the held surface to a surface opposite to the held surface. It is a feature.
According to this feature, a workpiece can be machined by inserting a drill tool from a surface opposite to the surface to be held. When machining a plurality of workpieces with the tool, the angle is approximately 90 degrees. By simply rotating the jig in the horizontal direction, the workpiece held on the holding surface can be machined from various directions at a small rotation angle of the jig without changing the position of the drill tool. This can improve the processing speed of the machine tool device.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out a machine tool device according to the present invention will be described below based on examples.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a perspective view showing an NC machine tool in the embodiment, FIG. 2 is a front view showing the NC machine tool, and FIG. 4 is a cross-sectional plan view showing a jig, FIG. 5 is a cross-sectional plan view showing an NC machine tool, and FIG. 6 is a machining of a workpiece using the NC machine tool. It is a conceptual diagram which shows work. Hereinafter, the lower side of the drawing in FIGS. 4 to 6 will be described as the front side (front side) of the NC machine tool.

  Reference numeral 1 in FIG. 1 denotes an NC machine tool 1 as a machine tool device of the present invention. In the NC machine tool 1 in this embodiment, a position of a drill tool D described later and a workpiece W as a workpiece of the present invention are shown. Is defined by coordinate values, and based on the position information, a control device (not shown) changes the position of the drill tool D and the position of the jig 2 described later. That is, the control of the relative position between the drill tool D and the workpiece W is configured as a numerically controlled machine tool that is automated by a control device (not shown).

  The NC machine tool 1 has a configuration in which the entire NC machine tool 1 is covered with a casing 3 so that grinding fluid, chips, and the like are not scattered when the workpiece W is processed by the drill tool D. An opening 5 that is opened and closed by the slide door 4 is formed on the front side of the body 3. In addition, a jig 2 that holds the workpiece W is disposed inside the housing 3, and the jig 2 is exposed from the opening 5 when the opening 5 is opened.

  An operation panel 6 is provided in the vicinity of the opening 5, and the user U operates the operation panel 6 to give an instruction to a control device (not shown) so that the machining operation by the NC machine tool 1 can be performed. The user U can perform continuous machining of a large number of workpieces W only by performing only the attaching / detaching operation of attaching / detaching the workpiece W to / from the jig 2.

  As shown in FIG. 2, the jig 2 has a base portion 8 fixed on a transfer device 7 to be described later, and a standing portion 9 erected so as to extend in the vertical direction on the base portion 8. In this standing portion 9, two held surfaces 10, 10 that are arranged side by side in a front view and that face each other in different directions, that is, outward are formed adjacent to each other. Further, the standing portion 9 has a symmetrical shape so that the left and right held surfaces 10 and 10 have the same height and width.

  In addition, the top part 11 is formed in the site | part where the to-be-held surfaces 10 and 10 cross | intersect in the jig | tool 2, The measuring tool (illustration omitted) for centering (coordinate taking) of the jig | tool 2 is formed in this top part 11. ) Is provided. When machining a plurality of workpieces W, if the centering is performed by bringing the measuring tool into contact with the centering portion 12 before starting the machining operation by the drill tool D, the centering is performed each time the workpiece W is replaced. There is no need to do it.

  As shown in FIG. 3, the held surface 10 is configured as a flat vertical surface, and on the one held surface 10, two attachment portions 13 to which the workpiece W is attached are arranged vertically. ing. In the vicinity of each attachment portion 13, a plurality of chuckers 14 for pressing and fixing the workpiece W attached to the attachment portion 13 to the attachment portion 13 side are arranged.

  The chuck 14 is provided at the tip of the hydraulic unit 15 disposed on the held surface 10, and a fluid branch pipe (not shown) connected to the hydraulic unit 15 is piped inside the jig 2. The top 11 of the jig 2 is provided with a pressure gauge 16 for detecting the pressure inside the fluid branch pipe (not shown), so that the pressure gauge 16 is easy to see when the jig 2 is viewed from the opening 5. (See FIG. 2).

  When the user U attaches the workpiece W to the jig 2, the user U attaches the workpiece W to the attachment portion 13, and an oil solution (not shown) inside the fluid branch pipe (not shown) is controlled by a control device (not shown). When the hydraulic pressure of the fluid is increased, the chuck 14 is moved in the direction approaching the mounting portion 13 by the hydraulic pressure, and the workpiece W is fixed to the mounting portion 13 by the pressing force of the chuck 14.

As shown in FIG. 4, the upright portion 9 of the jig 2 is bent at an angle of about 90 degrees so as to form a substantially V shape in a cross-sectional plan view, and the front side (front side) of the upright portion 9. The two held surfaces 10 and 10 are formed. These held surfaces 10 and 10 intersect with each other through the top 11 at a predetermined angle θ ₁ . More specifically, lines H and H extended from the held surfaces 10 and 10 intersect with each other at a predetermined angle θ ₁ of approximately 90 degrees.

  The jig 2 is rotated in the horizontal direction about the center of the base 8 by the rotation of the turntable 20 described later, and the standing part 9 provided on the jig 2 is rotated. The mounting portion 13, the chucker 14, and the workpiece W held on the held surface 10 are all contained within the rotation radius R of the base portion 8. Therefore, the jig 2 can be freely rotated in the horizontal direction if a space as much as the rotation radius R can be secured inside the housing 3.

  Further, a through-hole 17 that penetrates from the front side (front side) to the back side (back side) is formed in the standing portion 9 corresponding to the position where the attachment portion 13 is formed. The through-hole 17 is formed in such a size that the drill tool D can be inserted from the back side, and the workpiece W held by the jig 2 can be processed by contacting the drill tool D from the back side. Therefore, even when both the front and back sides of the workpiece W are machined with the drill tool D, both sides of the workpiece W can be machined by simply rotating the jig 2 without removing the workpiece W from the jig 2. It is like that.

  As shown in FIG. 5, the inside of the NC machine tool 1 includes an attachment / detachment portion α where the user U attaches / detaches the workpiece W to / from the jig 2, and a processing portion β where the workpiece W is processed by the drill tool D. And are provided. The attachment / detachment portion α is disposed on the front side of the housing 3, and the user U puts his / her hand through the opening 5 at the attachment / detachment portion α to attach / detach the workpiece W to / from the held surfaces 10, 10 of the jig 2. Work can be done. A plurality of types of drill tools D for machining the workpiece W held by the jig 2 are arranged in the machining portion β. The drill tools D are applied to the workpiece W from the back side and the side surface in the machining portion β. You can come in contact.

  Further, the attaching / detaching portion α and the processing portion β are partitioned by a slide door 18 that can be opened and closed, and two transfer devices 7 and 7 for moving the jig 2 between the attaching / detaching portion α and the processing portion β are provided. The transfer device 7 is configured to be rotationally moved inside the housing 3 by a single rotating device 19 disposed inside the housing 3, and one of the transfer devices 7 is disposed in the detachable portion α. The other transfer device 7 is arranged in the processing part β when it is. The operations of the drill tool D, the transfer devices 7 and 7, and the slide doors 4 and 18 described above are controlled by a control device (not shown).

  A turntable 20 that can be rotated in the horizontal direction is provided on the upper surface side of each transfer device 7, 7. The jig 2 described above is fixed on the turntable 20 provided on the transfer device 7 by using a bolt 21 or the like. The jig 2 can be freely moved between the attaching / detaching portion α and the processing portion β by the rotational movement of the transfer device 7, and is within the range of the rotation radius R described above on the transfer device 7 by the rotation of the turntable 20. Can rotate freely in the horizontal direction.

  When the user U inserts his / her hand through the opening 5 to access the jig 2 to attach / detach the workpiece W, that is, the jig 2 is moved together with the transfer device 7 to the attaching / detaching portion α, and the slide door 4 is opened. In the state where the opening 5 is opened, the control device (not shown) stops the operation of the turntable 20, puts the turntable 20 into a fixed state, and prevents the jig 2 from rotating in the horizontal direction. It is like that. Therefore, there is no possibility that the jig 2 rotates accidentally when the user U attaches / detaches the workpiece W, and the jig 2 collides with the body of the user U, and the safety of the NC machine tool 1 is improved. In addition, it is easy to attach and detach.

  When the workpiece W is attached to or detached from one jig 2 at the attachment / detachment portion α, the workpiece W held by the other jig 2 is processed by the drill tool D at the machining portion β. The user U can attach / detach the workpiece W to / from the jig 2 arranged in the attaching / detaching portion α using the processing time of the workpiece W held in the jig 2 arranged in the portion β.

When the user U attaches or detaches the workpiece W, the turntable 20 is fixed so that the top 11 of the jig 2 is positioned on the opening 5 side, and each of the held surfaces 10 and 10 has an opening. It is arranged in a state inclined about 45 degrees with respect to the part 5. Referring to FIG. 4 in detail, the lines H and H extended from the held surfaces 10 and 10 intersect the line F parallel to the opening 5 at a predetermined angle θ ₂ of about 45 degrees. Therefore, the user U can reach (access) both the left and right held surfaces 10 and 10 from the opening 5, and the workpiece W can be attached to and detached from both the held surfaces 10 and 10. It can be done.

  Since the two held surfaces 10 and 10 are inclined by about 45 degrees with respect to the opening 5, the held surface 10 is compared with the case where the held surface 10 faces the front side. The area of 10 is increased about 1.4 times. The held surface 10 will be described in detail. When the standing portion 9 is formed with the same height and the same width in the front view of the jig 2, the held surface 10 is not inclined with respect to the opening 5. The value obtained by multiplying the height and width of the held surface 10 in front view is the area of the held surface 10. However, the held surface 10 of the present embodiment is inclined by approximately 45 degrees with respect to the opening 5, so that even if the standing portion 9 is formed with the same height and the same width when viewed from the front, the held surface 10 is held. Since the width of the surface 10 is about 1.4 times (√2 times), the area of the held surface 10 is also about 1.4 times.

If the predetermined angle θ _{1 at} which the two held surfaces 10 and 10 intersect is an acute angle of more than about 90 degrees, the held surface 10 can be widened from the opening 5 in the depth direction. Since it becomes difficult to access by inserting a hand from the opening 5, the predetermined angle θ ₁ of approximately 90 degrees is near the limit of the angle at which the work W can be easily attached to and detached from the held surfaces 10 and 10 from the opening 5. When the predetermined angle θ ₁ is approximately 90 degrees, the area of the held surfaces 10 and 10 can be increased while ensuring that the workpiece W can be easily attached to and detached from the held surfaces 10 and 10.

According to the NC machine tool 1 of the present embodiment, the held surfaces 10 and 10 of the jig 2 face each other at a predetermined angle θ ₂ in the direction of the opening 5 and intersect each other. An area of the held surface 10 is secured in the depth direction, and the area of the held surface 10 that can be accessed by the user U inserting a hand through the opening 5 can be formed wide. 13 and the chucker 14 can be increased, and more workpieces W can be held on the held surface 10.

Further, the jig 2 has at least two held surfaces 10 and 10 which intersect at a predetermined angle θ ₁ and are adjacent to each other, so that at least two held surfaces 10 from the opening 5 of the housing 3 to the standing portion 9. , 10 can be attached to the workpiece 2, and the user U can hold more workpieces W on the jig 2 by exchanging the workpiece W once, so that a plurality of workpieces W are processed. At this time, since the number of times of exchanging the work W performed by temporarily stopping the NC machine tool 1 can be reduced, the work efficiency of the NC machine tool 1 can be improved.

In addition, since all of the plurality of held surfaces 10, 10 formed on the jig 2 are directed at a predetermined angle θ _{2 in} the direction of the opening 5 when the slide door 4 is opened, for example, When the user U operates the operation panel 6, the fixed state of the turntable 20 of the transfer device 7 arranged in the detachable portion α is released, and the user U manually moves the turntable 20 and the jig 2 horizontally. It is not necessary to rotate the direction to change the orientation of the plurality of held surfaces 10 and 10 so that each of the held surfaces 10 can be accessed from the opening 5, and the work time for attaching and detaching the workpiece W can be shortened. Or, the fatigue of the user U is reduced, and the working efficiency is improved.

  Further, the held surface 10 is formed in a flat shape, and the top 11 between the two held surfaces 10 and 10 is arranged on the opening 5 side, so that the user can see the workpiece W from an oblique direction. Since the attaching / detaching operation can be performed on the held surface 10, it is easy to visually recognize the attaching / detaching state of the workpiece W, and the workpiece W can be easily attached / detached because the held surface 10 spreads from the opening 5 toward the back.

  In addition, since the two held surfaces 10 and 10 are inclined at approximately 45 degrees with respect to one opening 5, the held surfaces 10 and 10 are directed toward the opening 5 and held from the opening 5. While securing the state in which the workpiece W can be easily attached to and detached from the surfaces 10 and 10, the area of the held surface 10 is expanded in the depth direction of the housing 3 from the opening 5, and more workpieces W are held by the jig 2. be able to.

  In addition, since the user U can perform the attaching / detaching operation with respect to the held surface 10 while viewing the workpiece W from the opening 5 from an oblique direction, The installation state of the workpiece W can be easily confirmed by the chucker 14. In other words, when the user U views the held surface 10 from the opening 5, the user U can surely install it while looking at the workpiece W from an angle different from the vertical direction with respect to the held surface 10. It becomes.

  Next, a machining operation when machining a plurality of workpieces W will be described with reference to FIG. First, the user U holds the workpiece W on the two held surfaces 10 and 10 of the jig 2 arranged in the attaching / detaching portion α, and is controlled by the transfer device 7 that is moved under the control of a control device (not shown). The tool 2 is moved from the attachment / detachment portion α to the processing portion β.

  Then, as shown in FIG. 6 (a), when the control device (not shown) operates the turntable 20, the jig 2 is rotated counterclockwise in a plan view, and the drill tool D is placed upright. 9 is inserted into one through-hole 17 from the back side, and the workpiece W held on one held surface 10 is processed from the back side.

  Next, as shown in FIG. 6 (b), the jig 2 is rotated counterclockwise by about 90 degrees in plan view, the drill tool D is brought close to the standing portion 9, and the other held surface 10 is moved. The held workpiece W is processed from the front side. Then, as shown in FIG. 6C, the jig 2 is rotated about 90 degrees counterclockwise in plan view, the drill tool D is brought close to the front side of the standing portion 9, and one held surface 10 is held. The workpiece W held on the surface is processed from the front side.

  Further, as shown in FIG. 6 (d), the jig 2 is rotated about 90 degrees counterclockwise in plan view, and the drill tool D is inserted into the other through-hole 17 from the back side of the standing portion 9, The workpiece W held on the other held surface 10 is processed from the back side.

  6 (a) to 6 (d), when a plurality of workpieces W are processed by the drill tool D, the jig 2 is simply rotated in the horizontal direction at an angle of 90 degrees. The workpieces W held on the held surfaces 10 and 10 can be sequentially processed with a small rotation angle of 2. When the processing of one workpiece W is completed, the processing of the other workpiece W can be started immediately. The machining speed of the NC machine tool 1 is improved.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

For example, in the above-described embodiment, when the jig 2 is disposed at the attachment / detachment portion α, the top portion 11 of the standing portion 9 having a substantially V shape in a cross-sectional plan view is located on the opening 5 side of the housing 3. However, the orientation of the top portion 11 of the upright portion 9 is located on the opposite side of the opening 5, that is, the back side, and the held surface 10 is behind the top portion 11 of the upright portion 9. The jig 2 is formed so that at least two held surfaces 10 and 10 intersect each other at a predetermined angle θ ₁ , so that the held surface 10 having a large area can be formed on the jig 2. And both the held surfaces 10 and 10 are inclined at a predetermined angle θ ₂ in the direction of the opening 5.

  Moreover, in the said Example, although the standing part 9 of the jig | tool 2 has comprised the substantially V shape in the cross-sectional planar view, the standing part 9 becomes a substantially L shape or a substantially W shape in the cross-sectional plan view. By forming in this way, the area of the held surface 10 may be increased, and the workpiece W may be attached to and detached from each held surface 10 from the opening 5.

Further, in the above embodiment, although two of the retaining surface 10, 10 is not intersect at an angle of approximately 90 degrees as a predetermined angle theta _1, the angle theta ₁ is approximately 90 degrees between the holding surface 10, 10 intersect Without limitation, the held surfaces 10 and 10 may intersect at an angle θ ₁ that is more obtuse or acute than 90 degrees.

It is a perspective view which shows the NC machine tool in an Example. It is a front view which shows NC machine tool. It is a perspective view which shows a jig | tool. It is a cross-sectional top view which shows a jig | tool. It is a cross-sectional top view which shows NC machine tool. It is a conceptual diagram which shows the workpiece | work processing operation | work using NC machine tool.

Explanation of symbols

1 NC machine tool (machine tool device)
2 Jig 3 Housing 5 Opening 10 Held Surface 11 Top 17 Through Hole D Drill Tool W Workpiece (Workpiece)

Claims (4)

A jig having a held surface for holding the workpiece and a tool for processing the workpiece held on the held surface are arranged inside the housing, and the tool and the workpiece In the machine tool device, which processes the workpiece by the tool by controlling the relative position of the workpiece, and attaches / detaches the workpiece to / from the holding surface through an opening formed in the housing ,
The machine tool device according to claim 1, wherein the held surface includes a plurality of held surfaces that are arranged adjacent to each other so as to face each other at a predetermined angle in the direction of the opening.   2. The machine tool device according to claim 1, wherein the held surface is formed in a flat shape, and a top portion between at least two held surfaces adjacent to each other is disposed on the opening side.   The machine tool device according to claim 1, wherein the predetermined angle is approximately 45 degrees.   The jig is pivotable in a horizontal direction, and the jig has a through-hole penetrating from the held surface to a surface opposite to the held surface. The machine tool device according to claim 3, wherein

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