JP3981795B2 - Machine tool with tool magazine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a machine tool provided with a tool magazine.
[0002]
[Prior art]
A machine tool provided with a conventional tool magazine is shown in FIGS. 6 and 7 in which the tool magazine M is changed in the width direction of the machine tool K in accordance with the side surface in the width direction of the machine tool K for exchanging the tool of the machine tool. It was arranged to be eccentric from the center to the right or left side.
[0003]
That is, when a tool is flowed from the right side in the width direction of the machine tool K, the tool magazine M is arranged on the left side as shown in FIG. As shown in FIG. 6, the tool magazine M is arranged on the right side.
[0004]
[Problems to be solved by the invention]
The machine tool provided with the conventional tool magazine is configured such that the tool magazine M is placed on the right side from the center in the width direction of the machine tool K according to the side surface in the width direction of the machine tool K that performs tool change of the machine tool. Since it is arranged eccentrically on the left side, there are two types of machine tools equipped with a tool magazine and two types of machine origins of the machine tools, and there is a problem that manufacturing, maintenance and other various management are complicated. It was.
[0005]
Also, after delivery of a machine tool with the above-mentioned conventional tool magazine, the machine is often transferred to another line, and if the direction of workpiece flow is changed, the work of changing the tool magazine M is necessary. There was a problem of poor sex.
[0006]
Therefore, the inventor of the present invention can position the center of the tool magazine at the substantially center in the width direction of the machine tool and change the tool from both sides in the width direction of the machine tool in a machine tool having a tool magazine. Focusing on the technical idea of the present invention to set the dimensions to be the same, and as a result of further research and development, the type of machine tool equipped with a tool magazine is reduced to one, simplifying manufacturing, maintenance and other various management In addition, the tool can be exchanged from both sides in the width direction of the machine tool, making it easy to transfer to another line, eliminating the need to change the tool magazine for changing the direction of workpiece flow, The present invention has been achieved to achieve the purpose of enhancing the properties.
[0007]
[Means for Solving the Problems]
A machine tool provided with the tool magazine of the present invention (the first invention according to claim 1),
In a machine tool provided with a tool magazine that is rotatably arranged and inserted into each holder where a large number of tools are clamped and grasped from both sides and juxtaposed in a horseshoe shape,
The center of the tool magazine is positioned substantially at the center in the width direction of the machine tool, and is set to a dimension that allows an operator to replace and replace the tool in the tool magazine from both sides in the width direction of the machine tool. And
The tool change position between the tool clamped and held by the tool magazine holder by the ATC and the tool inserted and held by the spindle of the machine tool, the tool movement trajectory by the rotation of the tool magazine, and the center in the width direction of the machine tool Is located at a position on the tool movement locus that is decentered obliquely upward from the lower intersection of the machine tool and outside the width direction of the machine tool so as not to interfere with the jig on the rotary table even if the spindle is moved downward. And
At the tool change position by the ATC, the tool clamped and held by the holder is inserted and held in the spindle of the machine tool and pulled downward to change the tool.
[0008]
A machine tool provided with the tool magazine of the present invention (second invention according to claim 2),
In the first invention,
The maximum diameter of the tool magazine is set smaller than the width of the machine tool.
[0009]
A machine tool provided with the tool magazine of the present invention (the third invention according to claim 3),
In the second invention,
The tool change position by ATC is arranged at the stroke end of the spindle .
[0010]
Operation and effect of the invention
The machine tool comprising the tool magazine of the first invention having the above-described configuration, which is rotatably arranged and is inserted into holders for holding and gripping a plurality of tools from both sides, is juxtaposed in a horseshoe shape. Is positioned at substantially the center in the width direction of the machine tool, and is set to a size that allows an operator to replace and replace the tool in the tool magazine from both sides in the width direction of the machine tool. The tool change position between the tool clamped and held by the holder of the tool magazine and the tool inserted and held by the spindle of the machine tool is below the tool movement trajectory by the rotation of the tool magazine and the center in the width direction of the machine tool. a from the intersection position on the tool moving locus is decentered obliquely upward, it is moved spindle downward not to interfere with the jig on the rotary table Arranged on the outside in the width direction of the position of the work machine, the tool changing position by the ATC, to tool change and pull downward by inserting gripping the tool being clamped gripped to the holder in the spindle of the machine tool As a result, it is possible to replace and replace the tool in the tool magazine by an operator from both sides in the width direction of the machine tool, and to make one type of machine tool equipped with the tool magazine for manufacturing, maintenance, etc. Various types of management are simplified, transfer to another line is easy, transfer work of the tool magazine T is not required to change the direction of workpiece flow, and versatility is enhanced. There is an effect that the interference with the jig is avoided and the height of the machine tool is reduced.
[0011]
In the machine tool provided with the tool magazine of the second invention having the above-described configuration, in the first invention, the maximum diameter of the tool magazine is set smaller than the width of the machine tool. It is possible to change the tool from both sides of the tool and to prevent the tool magazine from protruding from the width of the machine tool.
[0012]
In the machine tool provided with the tool magazine of the third invention configured as described above, in the second invention, since the tool change position is arranged at the stroke end of the spindle, the interference with the jig on the rotary table is avoided. The effect of reducing the height of the machine tool is achieved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
(Embodiment)
The machine tool provided with the tool magazine of this embodiment is a machine tool 2 provided with a tool magazine 1 as shown in FIGS. 1 to 5, and the center of the tool magazine 1 is substantially in the width direction of the machine tool 2. In addition to being positioned at the center, the maximum diameter of the tool magazine 1 is set to be slightly smaller than the width of the machine tool 2, and is configured to allow tool change from both sides in the width direction of the machine tool 2. .
[0015]
As shown in FIGS. 1 to 3, the machine tool 2 of the present embodiment is provided with a rotary table 25 on which a work is placed on one end of a bed 20, and faces the rotary table 25 on the bed 20. At the position, the gate-shaped column 21 is disposed so as to be movable on the X-axis constituted by the guides 211 disposed in parallel.
[0016]
A spindle head 22 is disposed on a Y-axis movable upper and lower member 220 constituted by a guide 221 disposed in parallel to the column 21, and the spindle head 22 is parallel to the portal column 21. A ram 23 and a spindle 24 are disposed so as to be movable on the Z-axis, which is constituted by guides 231 disposed on the surface.
[0017]
The X-axis servomotor 26 is disposed on the bed 20 in parallel with the guide 211, and is configured to move the column 21 on the X-axis. The Y-axis servomotor 27 is disposed on the column 21. The spindle head 22 is configured to move on the Y axis.
[0018]
A spindle servo motor 28 is disposed on the upper and lower members 220 and rotationally drives the spindle 24 rotatably disposed in the ram 23, and a Z-axis servo motor 29 is disposed on the upper and lower members 220. The ram 23 and the spindle 24 are moved to predetermined positions on the Z axis.
[0019]
The tool magazine 1 is rotatably disposed in the upper side of the column 21 as shown in FIGS. 1 and 4, each holder horseshoe shape drill numerous other tool T is挾着gripped from both sides Inserted and held and juxtaposed.
[0020]
Tool changing position of the tool magazine 1, a position close to a number of drill other tool T tool juxtaposed right in the drawing lower in horseshoe shape as shown in FIG. 4, the tool magazine 1 of the tool with the intersection of the lower and the center of the movement trajectory to the width direction of the machine tool 2 away a certain distance to the right, and further eccentrically to the right obliquely upward with a predetermined distance upward of the spindle 24 in the figure right lower It is arranged at the stroke end and is configured such that the tool is exchanged at this position.
[0021]
The machine tool 2, together are set to the width presumed dead, switch exchange can be carried out of the tool in the tool magazine 1 by the operator from both sides in the width direction to work by extending arms, wherein the tool magazine 1 The maximum diameter MD is, for example, about approximately MW on both sides from the distance MW between the inner walls of the cover 200 in which windows are formed on the left and right in the width direction of the machine tool 2 having the above-described width as shown in FIG. The gap m is set so small that a gap m of 5 to 10 mm is formed.
[0022]
The drill and other tools are inserted and held in the spindle 24 rotatably disposed in the ram 23 at the tool change position, and are rotated by the spindle servo motor 28. The workpiece is processed.
[0023]
In the machine tool including the tool magazine of the present embodiment having the above-described configuration, the tool T is replaced and inserted and held in the spindle 24 that is rotatably disposed in the ram 23 at the tool replacement position. .
[0024]
The spindle 24 and the ram 23 into which the replaced tool T is inserted are disposed on the column 21 by the X-axis servomotor 26 and the column 21 is moved by the X-axis servomotor 26 on the X-axis. The spindle head 22 thus moved is moved to the machining position by movement on the Y axis.
[0025]
As described above, the tool T that has moved to the machining position is rotationally driven by the spindle servomotor 28, and a predetermined machining is performed on the workpiece on the rotary table 25.
[0026]
The machine tool provided with the tool magazine of the present embodiment that exhibits the above-described action positions the center of the tool magazine 1 substantially at the center in the width direction of the machine tool 2 and from both sides of the machine tool 2 in the width direction. Since the dimensions are set so that the tool can be changed, there is an effect that the operator can change the tool from both sides in the width direction of the machine tool 2.
[0027]
That is, as shown in FIG. 5, the maximum diameter MD of the tool magazine 1 is a window that opens to the left and right in the width direction of the machine tool 2 with a width that allows the tool change from both sides in the width direction of the machine tool 2 described above. Is set to be smaller than the distance MW between the inner walls of the cover 200 formed with, for example, a gap m of about 5 to 10 mm on both sides. Therefore, if the operator extends the arm from either side, The tool can be exchanged through the window of the cover 200.
[0028]
In addition, as described above, the machine tool provided with the tool magazine according to the present embodiment has one type of machine tool provided with the tool magazine 1 which has been two types as described above, thereby simplifying manufacturing, maintenance and other various management. It is to make.
[0029]
Furthermore, since the machine tool provided with the tool magazine allows the tool T to be exchanged from either side of the machine tool 2, it can be easily transferred to another line, and the flow direction of the workpiece in the line and the factory Even if the change is made, since the transfer work of the tool magazine 1 is not required, the versatility is improved and the selling point is increased.
[0030]
In the machine tool provided with the tool magazine of the present embodiment, the maximum diameter of the tool magazine 1 is set smaller than the width of the machine tool 2, so that the tool can be changed from both sides in the width direction of the machine tool 2. And the effect of preventing the tool magazine 1 from protruding from the width of the machine tool 2 is achieved.
[0031]
Further, in the machine tool provided with the tool magazine of the present embodiment, the tool change position for exchanging the tool to be processed is oblique from the lower intersection of the tool movement trajectory of the tool magazine and the center of the machine tool 2 in the width direction. Since the spindle 24 is eccentrically arranged at the stroke end of the spindle 24 that moves relative to the tool magazine 1 on the X axis, Y axis, and Z axis, the spindle 24 moves the tool from the tool magazine. There is an effect of avoiding the interference between the tool held by the spindle 24 and the jig on the rotary table 25 , which is generated when moving downward for separation, and reducing the height of the machine tool 2. .
[0032]
That is, when the tool magazine 1 is arranged in line with the machine width and the tool (ATC) replacement position is set to the middle of the stroke, the range of interference with the jig increases, but the tool (ATC) replacement position in the present embodiment. In order to reduce the interference range with the jig, the layout is made eccentrically at the stroke end as described above, so the interference with the jig is greatly reduced, so that two types of tool magazines are not created. It has the advantage that it can be done.
[0033]
In the present embodiment, doors are provided on the left and right in the width direction of the machine cover 200 so that the operator can change the tool T from either the left or right. Therefore, there is an advantage that it is possible to perform pre-production.
[0034]
The above-described embodiments have been illustrated for the purpose of explanation, and the present invention is not limited thereto. Those skilled in the art will recognize from the claims, the detailed description of the invention, and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.
[0035]
In the above embodiment, as an example, the maximum diameter MD of the tool magazine is, for example, a gap m of about 5 to 10 mm on both sides from the distance MW between the inner walls of the cover 200 of the machine tool 2 as shown in FIG. However, the present invention is not limited to these, and the gap m outside the above range can be set as necessary.
[Brief description of the drawings]
FIG. 1 is a front view showing a machine tool including a tool magazine according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a machine tool of the present embodiment.
FIG. 3 is a side view showing the machine tool of the present embodiment.
FIG. 4 is a partially enlarged view showing a tool magazine in the machine tool of the present embodiment.
FIG. 5 is an explanatory diagram illustrating a positional relationship between the machine tool and the tool magazine according to the present embodiment.
FIG. 6 is a front view showing a machine tool provided with a tool magazine for flowing a tool from a conventional left side.
FIG. 7 is a front view showing a machine tool provided with a tool magazine for flowing a tool from a conventional right side.
[Explanation of symbols]
1 Tool magazine 2 Machine tool

Claims (3)

In a machine tool provided with a tool magazine that is rotatably arranged and inserted into each holder where a large number of tools are clamped and grasped from both sides and juxtaposed in a horseshoe shape,
The center of the tool magazine is positioned substantially at the center in the width direction of the machine tool, and is set to a dimension that allows an operator to replace and replace the tool in the tool magazine from both sides in the width direction of the machine tool. And
The tool change position between the tool clamped and held by the tool magazine holder by the ATC and the tool inserted and held by the spindle of the machine tool, the tool movement trajectory by the rotation of the tool magazine, and the center in the width direction of the machine tool Is located at a position on the tool movement locus that is decentered obliquely upward from the lower intersection of the machine tool and outside the width direction of the machine tool so as not to interfere with the jig on the rotary table even if the spindle is moved downward. And
A tool magazine characterized in that, at the tool change position by the ATC, the tool clamped and held by the holder is inserted and held in the spindle of the machine tool and pulled downward to change the tool. Machine Tools. In claim 1,
A machine tool comprising a tool magazine, wherein a maximum diameter of the tool magazine is set smaller than a width of the machine tool. In claim 2,
A machine tool provided with a tool magazine characterized in that a tool change position by ATC is arranged at a stroke end of a spindle .

Images