JP2019141953A - Machine tool - Google Patents

Abstract

To provide a machine tool that can sort and then collect various kinds of chips with different quality of materials and shapes and the like.SOLUTION: A machine tool 1 for cutting a material 4 to be cut, using a tool 5 comprises: an input part 10 to which a cutting condition for cutting is inputted; fluid jetting parts 20 that jet fluid f toward a blade edge of the tool 5 from any jetting positions A-D selected from a plurality of jetting positions A-D; a plurality of collection containers 30-33 that collect chips 4a and 4b flied away by the fluid f jetted from the jetting positions A-D to which the fluid jetting parts 20 correspond respectively; and a control part 11 that controls the fluid jetting parts 20 so that the jetting positions A-D are changed according to the cutting condition inputted to the input part 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a machine tool that cuts a work material with a tool.

  2. Description of the Related Art Conventionally, machine tools such as an automatic lathe and a machining center are often used for cutting a workpiece (workpiece) with a tool.

  In such a machine tool, it is assumed that a single machine tool cuts a plurality of types of work materials. In this case, the material can be recycled due to the importance of environmental problems. Therefore, it is required to have a separate collection function for sorting and collecting chips (chips) for each material of the work material.

  For example, Patent Document 1 describes a machine tool having a separate collection function for separating and collecting chips into a magnetic material and a non-magnetic material using magnetic force.

JP 2002-331435 A

  However, in the conventional machine tool described above, chips are separated using magnetic force. Therefore, there is a problem that the separation of the chips is limited to the separation of the magnetic material and the non-magnetic material. there were.

  In addition, the machine tool has a vibration cutting mode in which the cutting operation is performed while the tool is oscillated at a predetermined frequency (reciprocating motion) along the feed direction so that the chips are sequentially cut to a short length. What you have is known. In such a machine tool, when short chips in the vibration cutting mode are mixed with long chips in the normal cutting mode, there is a problem that when the chips are discarded, the short chips are scattered from the long chips and the handling becomes complicated. . In order to cope with such a problem, not only the difference in material but also the separation of scraps having the same material but different shapes have been demanded.

  An object of the present invention is to solve such problems, and an object of the present invention is to provide a machine tool capable of sorting and collecting various types of chips having different materials, shapes, and the like. There is.

  The machine tool according to the present invention is a machine tool that cuts a work material with a tool, and an input unit to which cutting conditions for the cutting are input, and any one of the injection positions selected from a plurality of injection positions. A fluid ejecting unit that ejects fluid toward the cutting edge of the tool from each other, a plurality of collection containers that collect chips blown by the fluid ejected from the corresponding ejection position of the fluid ejecting unit, and the input unit And a control unit that controls the fluid ejection unit so as to change the ejection position in accordance with the cutting conditions input to.

  The machine tool of the present invention has the above configuration, wherein the fluid ejecting section includes an ejection nozzle that ejects fluid and a moving mechanism that moves the ejection nozzle to a plurality of the ejection positions. It is preferable that the moving mechanism is controlled so as to change the injection position of the injection nozzle in accordance with the cutting condition input to the input unit.

  In the machine tool of the present invention, in the above configuration, the fluid ejecting section includes a plurality of ejecting nozzles arranged at a plurality of the ejecting positions, respectively, and the control means satisfies the cutting condition input to the input section. It is preferable to control the fluid ejection part so as to change the ejection nozzle that ejects the fluid accordingly.

  In the machine tool of the present invention, in the above configuration, it is preferable that a guard member is disposed above the collection container.

  The machine tool of the present invention further includes a guide table disposed below the tool and capable of tilting operation, and a drive unit that tilts the guide table, and the control unit includes the guide in the above configuration. It is preferable to control the drive unit so that the table is inclined so that a side of the collection container for collecting chips blown by the fluid ejected from the fluid ejection unit is lowered.

  In the machine tool of the present invention, in the above configuration, the fluid is preferably a coolant liquid.

  According to the present invention, by changing the fluid ejection position of the fluid ejection unit in accordance with the cutting conditions input to the input unit, a plurality of types of chips that differ for each cutting condition are blown in different directions depending on the fluid. Can be collected separately in different collection containers. Therefore, according to the present invention, it is possible to provide a machine tool capable of sorting and collecting various types of chips having different materials, shapes, and the like.

1 is a perspective view schematically showing a configuration of a machine tool according to an embodiment of the present invention. It is explanatory drawing which looked at the principal part of the machine tool shown in FIG. 1 from upper direction. It is explanatory drawing which shows the state which changed the injection position of the injection nozzle with respect to FIG. It is a flowchart figure which shows the control procedure which classify | categorizes and collects multiple types of chips in a separate collection container. It is explanatory drawing which shows the structure of the guide table provided below the tool. It is explanatory drawing which shows roughly the structure of the machine tool of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A machine tool 1 according to an embodiment of the present invention shown in FIG. 1 is configured as an automatic lathe, and includes a main shaft 3 rotatably supported by a gantry 2 and a work material ( And a tool 5 for cutting the workpiece 4.

  The main shaft 3 is rotationally driven by a driving source such as an electric motor (not shown) and can rotate together with the work material 4. The tool 5 is mounted on a tool post (not shown) and can move relative to the spindle 3 together with the tool post. It is possible to cut the work material 4 with the tool 5 by moving the tool 5 relative to the work material 4 while pressing the cutting edge of the tool 5 against the work material 4 rotating with the spindle 3. it can.

  The machine tool 1 is provided with an input unit 10. The input unit 10 can input conditions for cutting the workpiece 4 with the tool 5, that is, cutting conditions. Although not shown in detail, the input unit 10 can be configured as an operation panel including, for example, various input keys such as a numeric keypad for inputting cutting conditions, a liquid crystal panel for displaying the input cutting conditions, and the like. As the input unit 10, various configurations can be adopted as long as cutting conditions can be input.

  In the input unit 10, as cutting conditions, for example, the material of the work material 4, the rotation speed of the spindle 3, the depth of cutting of the tool 5 into the work material 4, the feed direction and feed speed of the tool 5, the cutting mode ( Selection of normal cutting mode or vibration cutting mode) is input.

  The machine tool 1 is provided with a control unit 11, and the input unit 10 is connected to the control unit 11. The control unit 11 is configured as a microcomputer including a CPU (Central Processing Unit) and a memory. The control unit 11 reads the cutting conditions input to the input unit 10, executes the machining program stored in the memory, and performs cutting of the workpiece 4 with the tool 5 under the cutting conditions input to the input unit 10. Each part of the machine tool 1 is controlled so that it may be implemented.

  The machine tool 1 is provided with a fluid ejecting unit 20 that ejects the fluid f from any of the spray positions selected from a plurality of spray positions toward the cutting edge of the tool 5. In the present embodiment, the fluid ejecting unit 20 includes three ejecting nozzles 21.

  Each of the three injection nozzles 21 can inject the fluid f at a predetermined flow rate toward the cutting edge of the tool 5. The flow rate or flow rate of the fluid ejected by the ejection nozzle 21 is such that the chips 4a generated by cutting the workpiece 4 with the tool 5 can be blown away in the direction in which the fluid f is ejected by the momentum of the fluid f. Is set to a value. Note that the number of the injection nozzles 21 can be variously changed as long as at least one injection nozzle 21 is provided.

  In the present embodiment, the fluid f ejected by the ejection nozzle 21 is a coolant liquid. By using the coolant liquid as the fluid f, it is possible to sort the chips 4a while cooling the workpiece 4 with the coolant liquid sprayed by the spray nozzle 21.

  Note that the fluid f ejected by the ejection nozzle 21 is not limited to the coolant liquid, and may be other liquids. Further, the fluid f ejected by the ejection nozzle 21 is not limited to a liquid, and may be a gas such as air, for example. By using a gas such as air as the fluid f, dry processing can be performed in which the workpiece 4 is processed while being cooled with gas.

  As shown in FIG. 2, the three injection nozzles 21 are driven by a moving mechanism (not shown) and moved to four injection positions A to D on a circular track 22 having the tool 5 substantially at the center in plan view. It is supposed to be. In the present embodiment, the injection positions A to D of the injection nozzle 21 are set so as to be shifted from each other by 90 degrees in the circumferential direction along the track 22 in a plan view.

  The three injection nozzles 21 selectively move to any one of the four injection positions A to D according to the cutting conditions input to the input unit 10. That is, when a cutting condition is input to the input unit 10, the operation of the moving mechanism is controlled by the control unit 11 in accordance with the cutting condition, and the three injection nozzles 21 have different injection positions A to A for each cutting condition. It moves toward any of the injection positions A to D so as to be D. For example, in FIG. 2, the three injection nozzles 21 are arranged at the injection position A by inputting the cutting conditions in the input unit 10, but other cutting conditions are input into the input unit 10. Sometimes, the three injection nozzles 21 are driven by the moving mechanism, and move to the injection position B along the track 22 as shown in FIG. The direction of the fluid f ejected by the ejection nozzle 21 at the ejection position B is a direction shifted by 90 degrees with respect to the direction of the fluid f ejected by the ejection nozzle 21 at the ejection position A. Although details are not shown, when another cutting condition is input to the input unit 10, the three injection nozzles 21 are driven by the moving mechanism to move to the injection position C along the trajectory 22. When the cutting conditions are input, the three injection nozzles 21 are driven by the moving mechanism and move to the injection position D along the track 22. Thus, in this Embodiment, the injection nozzle 21 can be moved to four different injection positions A to D corresponding to four different cutting conditions.

  Although the details of the moving mechanism for moving the injection nozzle 21 are not shown in the drawings, for example, a structure in which the three injection nozzles 21 are guided along a circular guide rail or a rotation in which the three injection nozzles 21 are fixed. Various configurations such as a moving table can be employed.

  Four recovery containers 30, 31, 32, 33 corresponding to the four injection positions A to D of the injection nozzle 21 are arranged on the bottom portion of the gantry 2. These collection containers 30, 31, 32, and 33 are arranged below the tool 5 and arranged in the circumferential direction around the portion immediately below the tool 5 so as to correspond to the four injection positions A to D. Has been placed. That is, the collection container 30 is arranged at a position corresponding to the injection position C on the opposite side of the injection position A with the tool 5 interposed therebetween corresponding to the injection nozzle 21 at the injection position A. Further, the collection container 31 is disposed at a position corresponding to the injection position D on the opposite side of the injection position B with the tool 5 interposed therebetween, corresponding to the injection nozzle 21 at the injection position B, and the collection container 32 is Corresponding to the injection nozzle 21 at the injection position C, it is arranged at a position corresponding to the injection position A on the opposite side of the injection position C with the tool 5 in between, and the collection container 33 is at the injection position D Corresponding to the injection nozzle 21, it is arranged at a position corresponding to the injection position B on the opposite side of the tool 5 with respect to the injection position D.

  When a liquid such as a coolant is used as the fluid, the recovery containers 30 to 33 hold the chips while holding the chips, such as a bowl-shaped container whose bottom wall and side walls are formed of mesh or punching metal. It can be set as the structure which can be made to flow out. Thereby, chips can be collected separately from the fluid f which is the coolant liquid. In this case, the liquid that has flowed out of the collection containers 30 to 33 can be collected and reused via a liquid receiver or the like provided at the bottom portion of the gantry 12.

  When the work material 4 is being cut by the tool 5, the fluid f is jetted from the jet nozzle 21 toward the cutting edge of the tool 5, the machining portion is cooled by the fluid f, and the work material 4 is cut by the tool 5. Chips generated by cutting are ejected by the fluid f and collected in the corresponding collection containers 30 to 33.

  For example, as shown in FIG. 2, when the workpiece 4 is cut by the tool 5 when the injection nozzle 21 is at the injection position A, the injection nozzle 21 at the injection position A is directed toward the cutting edge of the tool 5. The chips 4a are ejected toward the injection position C on the opposite side of the injection position A with the tool 5 interposed therebetween by the fluid f injected and recovered by the recovery container 30 at the injection position C. As shown in FIG. 3, when the work 4 is cut by the tool 5 when the injection nozzle 21 is at the injection position B, the injection nozzle 21 at the injection position B is directed toward the cutting edge of the tool 5. The chips 4b are ejected toward the injection position D on the opposite side of the injection position B with the tool 5 sandwiched by the fluid f thus injected, and are recovered by the recovery container 31 at the injection position D. Similarly, although not shown in detail, when cutting of the workpiece 4 is performed by the tool 5 when the injection nozzle 21 is at the injection position C, the injection nozzle 21 at the injection position C is directed toward the cutting edge of the tool 5. The chips 4c are ejected by the fluid f injected in this way toward the injection position A on the opposite side of the injection position C across the tool 5, and are recovered by the recovery container 32 at the injection position A, and the injection nozzle 21 is injected. When the work 4 is cut by the tool 5 at the position D, the chips 4d are moved to the injection position D by the fluid f injected from the injection nozzle 21 at the injection position D toward the cutting edge of the tool 5. Is blown toward the injection position B on the opposite side across the tool 5 and is recovered by the recovery container 33 at the injection position B.

  As described above, the position of the injection nozzle 21 is changed according to the cutting conditions input to the input unit 10. Therefore, a plurality of types of chips having different materials and shapes of the work material 4 due to different cutting conditions are blown in different directions by the fluid f ejected from the ejection nozzles 21 at different ejection positions A to D, respectively. It can be separated and collected in separate collection containers 30-33.

  As described above, in the machine tool 1 according to the present embodiment, the injection nozzles 21 change the injection positions A to D at which the fluid f is injected in accordance with the cutting conditions input to the input unit 10, thereby changing the cutting conditions. Different types of chips can be collected in different collection containers 30 to 33 by flying in different directions depending on the fluid f. Thereby, various types of chips having different materials, shapes, and the like can be easily separated and collected regardless of the materials and shapes. Moreover, since various types of chips can be separated and collected regardless of the material and shape thereof, the recyclability of the material can be improved.

  Furthermore, in the conventional chip separation method using magnetic force, a drying process for drying the coolant liquid adhering to the chip is necessary to increase the separation efficiency. However, in the machine tool 1 of the present embodiment, the magnetic force is separated. Since the chips cut by the tool 5 are blown off by the fluid f and directly collected in the collection containers 30 to 33 without using a chip, it is possible to more easily carry out fractional collection without requiring a chip drying step. it can.

  Here, the machine tool 1 according to the present embodiment performs normal cutting in which the work material 4 is continuously cut by moving the tool 5 with respect to the work material 4 at a constant feed speed as a cutting condition. In addition to the mode, it is possible to select a vibration cutting mode in which the tool 5 is fed at a constant feed speed while being fed (reciprocated) at a predetermined frequency along the feed direction. In this case, the chips when the workpiece 4 is cut in the normal cutting mode are continuous and long, whereas the chips when the workpiece 4 is cut in the vibration cutting mode are shortly divided. However, by inputting a normal cutting mode or a vibration cutting mode as a cutting condition to the input unit 10, these two types of chips having different lengths and shapes are separated and collected in separate collection containers 30 to 33. be able to. Therefore, long chips in the normal cutting mode are mixed with short chips in the vibration cutting mode, and when the chips are discarded, the short chips are scattered from the long chips and the handling of the chips becomes complicated. Can be separated and easily recovered.

  In order to more reliably collect the chips in the collection containers 30 to 33, the guard member 34 may be disposed above the collection containers 30 to 33. In the present embodiment, the guard member 34 is movable along a track 35 concentric with the track 22 of the injection nozzle 21 so as to be positioned above the collection containers 30 to 33 that always collect chips. . That is, as shown in FIG. 2, when the injection nozzle 21 moves to the injection position A, the guard member 34 moves to a position C above the collection container 30 at the injection position C, and as shown in FIG. Moves to the injection position B, the guard member 34 moves to a position D above the collection container 31 at the injection position D. Similarly, although not shown in detail, when the injection nozzle 21 moves to the injection position C, the guard member 34 moves to a position A above the collection container 32 at the injection position A, and the injection nozzle 21 moves to the injection position D. Then, the guard member 34 moves to a position B above the collection container 33 at the injection position B.

  Since the guard member 34 is disposed above the collection containers 30 to 33 that collect the chips blown by the fluid f ejected from the injection nozzle 21, the chips blown by the fluid f are applied to the guard member 34. Thus, it can be reliably recovered in the recovery containers 30 to 33. In particular, in the present embodiment, the guard member 34 has a shape that curves along the track 35 so that the tool 5 side is concave, so that the chips that have hit the guard member 34 are reliably placed in the collection containers 30 to 33. It can be dropped and collected.

  As the mechanism for moving the guard member 34, various mechanisms such as a structure in which the guard member 34 is moved integrally with the injection nozzle 21 by a moving mechanism for moving the injection nozzle 21 can be employed.

  FIG. 4 is a flowchart showing a control procedure for separating and collecting a plurality of types of chips into separate collection containers. Next, based on the flowchart shown in FIG. 4, a control procedure for collecting and collecting a plurality of types of chips having different materials, shapes, and the like into separate collection containers 30 to 33 will be described.

  First, when a cutting condition is input to the input unit 10 in step S1, a processing program is started by the control unit 11 in step S2. When the machining program is started, cutting conditions are read from the input unit 10 to the control unit 11 in step S3. When the cutting condition is read by the control unit 11, the guard member 34 moves toward the position C in step S4 according to the cutting condition, and the injection nozzle 21 moves to the injection position A in step S5. Note that the movement of the guard member 34 and the movement of the spray nozzle 21 may be performed at the same time, either of which may be performed first.

  When the movement of the injection nozzle 21 and the guard member 34 is completed, cutting of the work material 4 by the tool 5 is started in step S6.

  When cutting of the work material 4 by the tool 5 is started, the chips 4 a generated by cutting the work material 4 by the tool 5 receive the fluid f sprayed from the three spray nozzles 21. It is blown away by the fluid f and collected in the corresponding collection container 30.

  When the machining program for cutting is completed in step S7, it is determined in step S8 whether or not cutting of the workpiece 4 having a predetermined number of machining lots has been completed, and if it is determined that the number of machining lots has been completed, Cutting is completed. On the other hand, if it is determined in step S8 that the number of processing lots has not been completed, the process returns to step S3, and steps S4 to S8 are repeated thereafter.

  On the other hand, when another cutting condition different from the cutting condition in the previous cutting process is input to the input unit 10 in step S1, a processing program is started in step S2, and the control unit is controlled from the input unit 10 in step S3. After the cutting condition is read in 11, the guard member 34 moves toward the position D in step S9 according to the cutting condition, and the injection nozzle 21 moves to the injection position B in step S10. Thus, when a cutting condition different from the previous cutting process is input to the input unit 10, the guard member 34 and the injection nozzle 21 move to different positions different from the previous cutting process.

  When the movement of the injection nozzle 21 and the guard member 34 is completed, cutting of the work material 4 by the tool 5 is started in step S11. At this time, since the guard member 34 and the injection nozzle 21 are moved to different positions different from the previous cutting process, the chips 4a generated by cutting the work material 4 with the tool 5 are It is collected in a separate collection container 31 that is different from the collection container 30 that collected the chips in the cutting process.

  Furthermore, in step S1, when another cutting condition different from any of the previous two cutting conditions is input to the input unit 10, a machining program is started in step S2, and in step S3, the input unit 10 After the cutting conditions are read from the controller 11 to the control unit 11, the guard member 34 moves toward the position A in step S12 according to the cutting conditions, and the injection nozzle 21 moves to the injection position C in step S13. Thus, when a cutting condition different from any of the previous cutting operations is input to the input unit 10, the guard member 34 and the injection nozzle 21 move to different positions different from any of the previous cutting operations.

  Therefore, even if the movement of the injection nozzle 21 and the guard member 34 is completed and the cutting of the work material 4 by the tool 5 is started in step S14, at this time, the guard member 34 and the injection nozzle 21 are Since the workpiece 4 is moved to another position different from the cutting process, the chips 4a generated by cutting the workpiece 4 with the tool 5 are collected in the collection containers 30, 31 in which the chips are collected in any of the previous cutting processes. It is collected in another collection container 32 that is different from the above.

  FIG. 5 is an explanatory diagram showing the configuration of the guide table 40 provided below the tool 5. In FIG. 5, members corresponding to the members described above are denoted by the same reference numerals.

  As shown in FIG. 5, the machine tool 1 may be configured to include a guide table 40 below the tool 5. The guide table 40 is tiltable by rotating around the hinge 41. Further, a drive unit such as a servo motor (not shown) is connected to the hinge 41, and the guide table 40 is tilted by driving the hinge 41 by this drive unit.

  The control unit 11 controls the operation of the drive unit to incline the guide table 40 so that the side of the collection containers 30 to 33 that collect the chips blown by the fluid f ejected from the ejection nozzle 21 is lowered. For example, as shown in FIG. 5, when the chips 4 a are blown toward the collection container 30 by the fluid f ejected from the ejection nozzle 21, the guide table 40 is driven by the drive unit to It is set as the attitude | position which inclines so that the edge part of the side may become lower than the other edge part on both sides of the hinge 41.

  By providing such a guide table 40 below the tool 5, the chips 4 a generated by cutting the work 4 with the tool 5 are not blown by the fluid f sprayed from the spray nozzle 21. 5, the chip 4 a can be received by the guide table 40 and guided along the guide table 40 and dropped toward the desired collection container 30. . Thereby, the said chip 4a can be reliably collect | recovered by the collection container 30. FIG.

  In FIG. 5, only one hinge 41 is illustrated as a hinge for tilting the guide table 40, but the guide table 40 includes another hinge having an axis orthogonal to the hinge 41. Any of the collection containers 30 to 33 can be inclined toward the side.

  FIG. 6 is an explanatory diagram schematically showing the configuration of a machine tool 1 according to another embodiment of the present invention. In FIG. 6, members corresponding to those described above are denoted by the same reference numerals.

  In the case illustrated in FIG. 2, the fluid ejection unit 20 is selectively moved to any one of the four ejection positions A to D by the moving mechanism according to the cutting conditions input to the input unit 10. Changes the injection positions A to D for injecting the fluid f, whereby the collection containers 30 to 33 for collecting chips are changed for each cutting condition.

  On the other hand, in the machine tool 1 according to another embodiment of the present invention shown in FIG. 6, each of the fluid ejection units 20 includes three ejection nozzles 21, and the fluid ejection unit 20 </ b> A disposed at the ejection position A. The fluid ejection unit 20B is disposed at the ejection position B, the fluid ejection unit 20C is disposed at the ejection position C, and the fluid ejection unit 20D is disposed at the ejection position D. .

  The control unit 11 does not move these fluid ejecting units 20A to 20D, and any one of the fluid ejecting units selected from the fluid ejecting units 20A to 20D according to the cutting conditions input to the input unit 10 The fluid ejection units 20A to 20D are controlled so that the fluid f is ejected from the ejection nozzles 21 of the units 20A to 20D. For example, when the cutting condition in the input unit 10 is input, the control unit 11 ejects the fluid f from the ejection nozzle 21 of the fluid ejection unit 20A at the ejection position A and ejects the other fluid ejection units 20B to 20D. The fluid ejection units 20A to 20D are controlled so that the fluid f is not ejected from the nozzle 21, and chips are collected by the collection container 30 on the opposite side to the ejection position A with the tool 5 interposed therebetween. When cutting conditions different from the previous one are input to the input unit 10, the control unit 11 ejects the fluid f from the ejection nozzle 21 of the fluid ejection unit 20 </ b> B at the ejection position B different from the previous cutting process. The fluid ejection units 20A to 20D are controlled so that the fluid f is not ejected from the ejection nozzles 21 of the other fluid ejection units 20A, 20C, and 20D, and chips are ejected from the ejection position B on the opposite side of the tool 5. It is made to collect with the collection container 31 in the. Thus, in the machine tool 1 of this embodiment, the four injection positions A to D are switched by switching the injection nozzles 21 that inject the fluid f without moving the injection nozzles 21 of the fluid injection units 20A to 20D. The fluid f is ejected from one of the injection positions A to D selected from any of the above, and the chips can be collected by being separated into different collection containers 30 to 33. Thereby, the chips are separated and collected into different collection containers 30 to 33 by simple control of simply switching the ejection nozzle 21 that ejects the fluid f without moving the ejection nozzle 21 of the fluid ejection units 20A to 20D. Can do.

  In this embodiment, you may make it arrange | position the guard member 34 above each of the collection containers 30-33. Thereby, without moving any of the injection nozzle 21 and the guard member 34, the chips can be easily separated and collected in any of the four collection containers 30 to 33 with a simpler control.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above-described embodiment, the injection positions of the three injection nozzles 21 can be changed to four injection positions A to D, and the four collection containers 30 to 33 are correspondingly provided. However, the present invention is not limited to this, and the number of injection positions and collection containers of the injection nozzle 21 can be changed as appropriate as long as a plurality of injection positions and collection containers are provided.

  Further, in both the embodiment shown in FIG. 2 and the embodiment shown in FIG. 6, the guard member 34 is formed in a circular wall shape extending over all of the four collection containers 30 to 33. You may make it do.

DESCRIPTION OF SYMBOLS 1 Machine tool 2 Base 3 Spindle 4 Work material 4a Chip 4b Chip 4c Chip 4d Chip 5 Tool 10 Input part 11 Control part 20 Fluid injection part 20A Fluid injection part 20B Fluid injection part 20C Fluid injection part 20D Fluid injection part 21 Injection nozzle 22 Track 30 Collection container 31 Collection container 32 Collection container 33 Collection container 34 Guard member 35 Track 40 Guide table 41 Hinge f Fluids A to D Injection position

Claims (6)

A machine tool for cutting a work material with a tool,
An input unit for inputting cutting conditions of the cutting process;
A fluid ejection unit that ejects fluid from any one of the ejection positions selected from a plurality of ejection positions toward the cutting edge of the tool;
A plurality of recovery containers each for recovering chips blown by the fluid ejected from the corresponding ejection position of the fluid ejection section;
And a control unit that controls the fluid ejection unit to change the ejection position in accordance with the cutting condition input to the input unit. The fluid ejecting section includes an ejection nozzle that ejects fluid and a moving mechanism that moves the ejection nozzle to the plurality of ejection positions;
The machine tool according to claim 1, wherein the control unit controls the moving mechanism so as to change the injection position of the injection nozzle in accordance with the cutting condition input to the input unit. The fluid ejection unit includes a plurality of ejection nozzles arranged at a plurality of the ejection positions, respectively.
The machine tool according to claim 1, wherein the control unit controls the fluid ejection unit to change the ejection nozzle that ejects the fluid in accordance with the cutting condition input to the input unit.   The machine tool according to any one of claims 1 to 3, wherein a guard member is disposed above the collection container. A guide table disposed below the tool and capable of tilting;
A drive unit for tilting the guide table;
The said control part controls the said drive part so that the side of the said collection | recovery container which collect | recovers the guide table for the chip blown off by the fluid injected from the said fluid injection part may become low. The machine tool according to any one of -4.   The machine tool according to claim 1, wherein the fluid is a coolant liquid.

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