WO2020070907A1 - Support, outil de coupe et procédé de fabrication de pièce à travailler - Google Patents

Support, outil de coupe et procédé de fabrication de pièce à travailler

Info

Publication number
WO2020070907A1
WO2020070907A1 PCT/JP2019/007005 JP2019007005W WO2020070907A1 WO 2020070907 A1 WO2020070907 A1 WO 2020070907A1 JP 2019007005 W JP2019007005 W JP 2019007005W WO 2020070907 A1 WO2020070907 A1 WO 2020070907A1
Authority
WO
WIPO (PCT)
Prior art keywords
recess
base
sensor
wireless communication
communication unit
Prior art date
Application number
PCT/JP2019/007005
Other languages
English (en)
Japanese (ja)
Inventor
重孝 橋本
大和田　靖彦
高橋　宏和
Original Assignee
京セラ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2019513473A priority Critical patent/JPWO2020070907A1/ja
Publication of WO2020070907A1 publication Critical patent/WO2020070907A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool

Definitions

  • This aspect generally relates to a holder capable of measuring a cutting state in a cutting operation of a work material. More specifically, the present invention relates to a holder capable of communicating a measured state of a cutting process with the outside.
  • Patent Document 1 describes a cutting tool including a main body, a cutting blade, a sensor unit, a cable member, and a communication unit, and the communication unit is detachably connected to the cable member.
  • a holder based on a non-limiting aspect of the present disclosure has a base, a sensor, and a wireless communication unit.
  • the base has a rod shape extending from the first end toward the second end, and has a first concave portion and a second concave portion.
  • the first recess is located on the side of the first end and is capable of mounting a cutting insert with a cutting edge.
  • the second recess is located closer to the second end than the first recess.
  • the sensor is attached to the base and is capable of measuring the state of the base.
  • the wireless communication unit is attached to the second concave portion and connected to the sensor by wire, and can wirelessly communicate information measured by the sensor with the outside.
  • FIG. 2 is an exploded perspective view of the cutting tool shown in FIG. It is the perspective view which looked at the cutting tool shown in FIG. 1 from another direction. It is the side view which looked at the cutting tool shown in FIG. 3 from A1 direction. It is the side view which looked at the cutting tool shown in FIG. 3 from A2 direction.
  • FIG. 5 is a cross-sectional view taken along the line VI-VI of the cutting tool shown in FIG. 4.
  • FIG. 7 is a sectional view taken along the line VII-VII of the cutting tool shown in FIG. 4.
  • FIG. 6 is a cross-sectional view taken along the line VIII-VIII of the cutting tool shown in FIG. 5.
  • the cutting tool 1 having the holder 3 according to the embodiment will be described in detail with reference to the drawings.
  • the cutting tool 1 may include any components not shown in each of the drawings referred to.
  • the dimensions of the members in the drawings do not faithfully represent the actual dimensions of the constituent members, the dimensional ratios of the respective members, and the like.
  • Examples of the cutting tool 1 include a turning tool, a rolling tool, a drill, and the like.
  • Turning tools include outer diameter machining tools, inner diameter machining tools, grooving tools, and parting-off tools.
  • the milling tool includes a milling tool and an end mill.
  • the cutting tool 1 of the embodiment has the holder 3 and the cutting insert 5 (hereinafter, also simply referred to as the insert 5).
  • the cutting tool 1 in the example shown in FIG. 1 is a turning tool. As described above, there is no problem even if the cutting tool 1 is a rolling tool or a drill.
  • the holder 3 of the embodiment has a base 7, a sensor 9, and a first wireless communication unit 11.
  • the base 7 in the embodiment may have a rod shape extending from the first end 3a to the second end 3b.
  • the first end 3a is a front end
  • the second end 3b is a rear end.
  • the base 7 may be in the shape of a quadrangular prism. Assuming that a virtual straight line extending from the first end 3a toward the second end 3b is the central axis O1, the base 7 may have the central axis O1 and extend along the central axis O1.
  • the base 7 may have a first side surface 13, a second side surface 15, a third side surface 17, and a fourth side surface 19.
  • the first side surface 13, the second side surface 15, the third side surface 17, and the fourth side surface 19 may each extend from the first end 3a toward the second end 3b.
  • the second side surface 15 may be located on the opposite side of the first side surface 13.
  • the third side 17 and the fourth side 19 may be located between the first side 13 and the second side 15, respectively.
  • the fourth side surface 19 may be located on the opposite side of the third side surface 17.
  • the third side 17 and the fourth side 19 may be orthogonal to the first side 13 and the second side 15, respectively.
  • the size of the base 7 is not particularly limited.
  • the length from the first end 3a to the second end 3b may be set to about 50 to 200 mm.
  • the distance between the first side surface 13 and the second side surface 15 may be set to about 5 to 30 mm.
  • the distance between the third side surface 17 and the fourth side surface 19 may be set to about 5 to 30 mm.
  • Examples of the material of the base 7 include steel and cast iron. From the viewpoint of increasing the toughness of the base 7, steel may be used among these materials.
  • the base 7 has a first concave portion 21 located on the first end 3a side and a second concave portion 23 located on the second end 3b side.
  • the first concave portion 21 may be located including the first end 3a.
  • the first recess 21 is open at the first end 3a.
  • the first recess 21 may be open to the first side surface 13 and the third side surface 17.
  • the first recess 21 may be located closer to the first end 3a than the second recess 23. Therefore, the first recess 21 does not necessarily have to be located at the first end 3a.
  • the first recess 21 is a portion to which the insert 5 can be attached. Therefore, in the cutting tool 1 having the holder 3 and the insert 5, the insert 5 may be located in the first recess 21.
  • the first recess 21 is called a pocket.
  • the insert 5 has a cutting edge 25, and has a function of cutting a work material during cutting.
  • the insert 5 may be in the shape of a square plate, and have a first surface 27 and a second surface 29.
  • the first surface 27 may have a region, called a rake surface, through which chips flow.
  • the second surface 29 is adjacent to the first surface 27.
  • the second surface 29 may have a region called a flank surface, which faces the machined surface of the workpiece.
  • the cutting blade 25 only needs to be located at least at a part of a ridge line where the first surface 27 and the second surface 29 intersect.
  • the first surface 27 of the insert 5 may be located substantially parallel to the third side surface 17 of the base 7.
  • the first surface 27 of the insert 5 may be substantially perpendicular to the first side surface 13 and the second side surface 15 of the base 7.
  • a main component force is likely to be applied to the cutting tool 1 in a direction substantially perpendicular to the third side surface 17 during cutting.
  • the shape of the insert 5 is not limited to the above-described embodiment.
  • the insert 5 of the embodiment has a square plate shape in which the shape of the first surface 27 is square.
  • the shape of the first surface 27 may be, for example, a triangle or a hexagon. That is, the insert 5 may have, for example, a triangular plate shape or a hexagonal plate shape.
  • the size of the insert 5 is not particularly limited.
  • the length of one side of the first surface 27 may be set to about 3 to 20 mm.
  • the height of the insert 5 shown in a direction orthogonal to the first surface 27 may be set to about 5 to 20 mm.
  • Examples of the material of the insert 5 include a cemented carbide and a cermet.
  • Examples of the composition of the cemented carbide include WC-Co, WC-TiC-Co, and WC-TiC-TaC-Co.
  • WC, TiC, and TaC are hard particles
  • Co is a binder phase.
  • ⁇ ⁇ Cermet is a sintered composite material in which a metal is combined with a ceramic component.
  • the cermet includes a titanium compound containing titanium carbide (TiC) and / or titanium nitride (TiN) as a main component.
  • TiC titanium carbide
  • TiN titanium nitride
  • the material of the insert 5 is not limited to the above composition.
  • the surface of the insert 5 may be coated with a coating using a chemical vapor deposition (CVD) method or a physical vapor deposition (PVD) method.
  • CVD chemical vapor deposition
  • PVD physical vapor deposition
  • the composition of the coating include titanium carbide (TiC), titanium nitride (TiN), titanium carbonitride (TiCN), and alumina (Al 2 O 3 ).
  • the second recess 23 may be located closer to the second end 3b than the first recess 21 is. Therefore, the second recess 23 does not necessarily have to be located at the second end 3b.
  • the second recess 23 in the example shown in FIG. 1 is located away from the second end 3b. As shown in FIG. 1, the second recess 23 may be open to the first side surface 13.
  • the holder 3 may have a sensor 9 attached to the base 7.
  • the sensor 9 is a member capable of measuring the state of the base 7 during cutting. Examples of the state of the base 7 include physical quantities such as temperature, acceleration, vibration, strain, internal stress, and wear. Measuring the state of the base 7 means measuring at least one of the physical quantities of the base 7 represented above. Further, the measurement target is not limited to information in a static state, and may be information in a dynamic state, that is, a change in state.
  • the information of the measurement target be temperature. Further, it is assumed that the temperature of the base 7 before cutting is 20 °, and the temperature of the base 7 rises to 80 ° during cutting. At this time, 20 ° which is the temperature of the base 7 before the cutting is information on the temperature in a static state. Further, the rise in the temperature of the base 7 from 20 ° to 80 ° is information on the temperature in a dynamic state. Either one of these pieces of information may be measured, or both may be measured.
  • the holder 3 when the holder 3 has a thermocouple as the sensor 9, the temperature of the base 7 can be measured. Even when the holder 3 has a piezoelectric sensor using a piezo element, it is possible to measure acceleration, vibration, strain, internal stress, and the like. Further, the holder 3 may have a wiring circuit functioning as the sensor 9. Specifically, when the wiring circuit is worn by the wear of the base 7 and the resistance value of the circuit changes, the wear state of the base 7 may be measured by the change in the resistance value.
  • the state of the base 7 that can be measured by the sensor 9 is not limited to the above physical property values. Further, the sensor 9 is not limited to the specific examples described above, and any other element not particularly described may be used as long as it can measure the physical property values of the base 7 exemplified above. For example, there are a camera and a microphone.
  • the holder 3 may have the first wireless communication unit 11 attached to the second recess 23 in the holder 3.
  • the first wireless communication unit 11 is connected to the sensor 9 by wire, and information of the base 7 measured by the sensor 9 is transmitted to the first wireless communication unit 11.
  • the information of the base 7 transmitted to the first wireless communication unit 11 can be wirelessly communicated with the outside in the first wireless communication unit 11.
  • the holder 3 may have a first connection unit 31 that connects the sensor 9 and the first wireless communication unit 11 by wire.
  • Examples of the first connection portion 31 include a wiring and a circuit using a conductor.
  • the transmission of information from the sensor 9 to the first wireless communication unit 11 is not limited to the above, and may be performed using, for example, an optical wiring.
  • the second wireless communication unit 33 When the external member that performs wireless communication with the first wireless communication unit 11 is the second wireless communication unit 33, information on the base 7 measured by the sensor 9 is transmitted from the first wireless communication unit 11, The wireless communication unit 33 may receive it. The information of the base 7 received by the second wireless communication unit 33 may be transmitted to the evaluation unit 35. The evaluation unit 35 may evaluate the state of the base 7.
  • the processing conditions such as the feed amount, the rotation speed of the work material, and the injection amount of the coolant (coolant) may be changed. In some cases, cutting may be stopped.
  • the cutting tool 1 of the embodiment is a turning tool, when the cutting tool 1 is a rolling tool or a drill, the processing conditions that can be changed include the rotation speed of the cutting tool 1.
  • the wireless communication described above is not limited to transmission of information from the first wireless communication unit 11 to the second wireless communication unit 33, and transmission of information from the second wireless communication unit 33 to the first wireless communication unit 11. It is a concept including Further, the wireless communication described above may be bidirectional transmission and reception of information between the first wireless communication unit 11 and the second wireless communication unit 33.
  • the first wireless communication unit 11 may be attached to the second recess 23.
  • the first wireless communication unit 11 is more likely to be prevented from protruding outside than the outer surface of the base 7, as compared with the conventional holder 3 including only the base 7. That is, in the machine tool to which the holder 3 is attached, it is not necessary to separately provide a space for attaching the first wireless communication unit 11.
  • the holder 3 of the embodiment it is possible to attach the holder 3 of the embodiment to an existing machine tool to which the conventional holder 3 constituted only by the base 7 is attached without performing a large-scale modification.
  • the existing machine tool can be easily used as it is, the manufacturing cost of the cut workpiece is suppressed.
  • the base 7 may further have a third recess 37 in addition to the first recess 21 and the second recess 23 as in the example shown in FIG.
  • the third recess 37 may be located closer to the second end 3b than the first recess 21 as in the example shown in FIG. As shown in FIG. 2, the third recess 37 may be open to the first side surface 13.
  • the base 7 has a third recess 37, and the sensor 9 is attached to the third recess 37.
  • the senor 9 may be attached to the third recess 37. In this case, there is no need to separately provide a space for mounting the sensor 9 in the machine tool to which the holder 3 is mounted.
  • the second concave portion 23 and the third concave portion 37 may be located closer to the second end 3b than the first concave portion 21. At this time, the second concave portion 23 and the third concave portion 37 may be located at the second end 3b, or may be located away from the second end 3b as in an example shown in FIG.
  • the distance between the second concave portion 23 and the third concave portion 37 and the second end 3b is reduced. It is possible to hold the holder 3 with. Therefore, it is possible to stably hold the holder 3 while performing stable wireless communication between the first wireless communication unit 11 and the outside.
  • the second concave portion 23 and the third concave portion 37 may be located independently of each other, that is, may be located away from each other. Further, the second concave portion 23 and the third concave portion 37 may be connected to form one concave portion, that is, may be formed integrally. When the second concave portion 23 and the third concave portion 37 are formed integrally, the manufacturing process of forming the second concave portion 23 and the third concave portion 37 on the holder 3 can be simplified.
  • the first connecting portion 31 is connected to the second concave portion 23 and the third concave portion 37. It can be located in the recess constituted by the recess 37. Thereby, at the time of cutting, for example, chips are less likely to come into contact with the first connection portion 31, so that the first connection portion 31 is not easily damaged. Therefore, the durability of the holder 3 is high.
  • the sensor 9 may be located closer to the first end 3a than the first wireless communication unit 11, as shown in FIG. In other words, the sensor 9 may be located closer to the first recess 21 than the first wireless communication unit 11. When the sensor 9 is located relatively near the first recess 21, the state of the base 7 can be measured with higher accuracy.
  • the wireless communication between the first wireless communication unit 11 and the outside can be stably performed.
  • the base 7 may further include a fourth recess 39 in addition to the first recess 21 and the second recess 23 as in the example shown in FIG.
  • the fourth recess 39 may be located closer to the second end 3b than the first recess 21 as in the example shown in FIG. As shown in FIG. 3, the fourth recess 39 may be open to the second side surface 15.
  • the base 7 has the fourth concave portion 39, and the battery 41 is attached to the fourth concave portion 39.
  • the first wireless communication unit 11 may be supplied with power from an external power supply, or may be supplied with power from the battery 41 described above.
  • power is supplied from the battery 41 to the first wireless communication unit 11, it is not necessary to provide a wiring for electrically connecting the power supply and the first wireless communication unit 11 to the machine tool. Therefore, existing machine tools are easily used.
  • the holder 3 in the example shown in FIG. 4 has a second connection unit 43 for connecting the battery 41 and the first wireless communication unit 11 by wire.
  • Examples of the second connection unit 43 include a wiring and a circuit using a conductor, as in the first connection unit 31.
  • the second concave portion 23 and the fourth concave portion 39 may be located independently of each other, that is, may be located apart from each other. Further, the second concave portion 23 and the fourth concave portion 39 may be connected to form one concave portion, that is, may be formed integrally. As shown in FIG. 4, the base 7 may have through holes 45 that open in the second recess 23 and the fourth recess 39, respectively. The second recess 23 and the fourth recess 39 may be connected via the through hole 45.
  • the second connecting portion 43 is connected to the second concave portion 23 and the fourth concave portion 39.
  • the base 7 has the through-hole 45 as in the example shown in FIG. 4, the second connection portion 43 can be located in the through-hole 45. Therefore, the second connecting portion 43 is not easily damaged during cutting. Therefore, the durability of the holder 3 is high.
  • the fourth recess 39 may be located on the opposite side of the second recess 23 with respect to the central axis O1. Specifically, when the base 7 is viewed through the plane toward the first end 3a, the fourth recess 39 may be located on the opposite side of the second recess 23 with respect to the center axis O1. Here, being located on the opposite side means that when the base 7 is viewed through the plane toward the first end 3a, a part of the second concave part 23, a part of the fourth concave part 39, O1 is located on a straight line.
  • the base 7 in the example shown in FIG. 4 has the first side surface 13 and the second side surface 15 as described above.
  • the second recess 23 is located on the first side surface 13, and the fourth recess 39 is located on the second side surface 15.
  • the second concave portion 23 and the fourth concave portion 39 are located on the opposite sides as described above, it is easy to secure a large space between the second concave portion 23 and the fourth concave portion 39. Therefore, for example, the size of the first wireless communication unit 11 located in the second recess 23 can be increased, and stable wireless communication can be performed between the first wireless communication unit 11 and the outside. Further, for example, the capacity of the battery 41 located in the fourth recess 39 can be increased.
  • the holder 3 may further have a resin member 47.
  • the resin member 47 is filled in the second recess 23 as shown in FIG. 8, and may seal the first wireless communication unit 11.
  • the first wireless communication unit 11 is not easily damaged during cutting.
  • the resin member 47 does not need to be filled only in the second concave portion 23.
  • the resin member 47 fills the third concave portion 37 and / or the fourth concave portion 39. It may be filled.
  • the resin member 47 may be filled in the third recess 37 to seal the sensor 9. In this case, the sensor 9 is not easily damaged during the cutting.
  • the resin member 47 may be filled in the fourth recess 39 to seal the battery 41.
  • the battery 41 is not easily damaged during the cutting.
  • the fourth concave portion 39 may not be filled with the resin member 47.
  • the resin member 47 filled in the second recess 23 is a first resin member 47a
  • the resin member 47 filled in the third recess 37 is a second resin member 47b
  • the resin member 47 filled in the fourth recess 39 is a
  • the third resin member 47c may be made of the same material or different materials.
  • these resin members 47 are made of the same material, it is sufficient to prepare one kind of resin when manufacturing the holder 3, so that the cost for manufacturing the holder 3 can be suppressed.
  • the performance of the holder 3 can be improved.
  • the first wireless communication unit 11 is located in the second recess 23
  • a material having better radio wave permeability than the second resin member 47b and the third resin member 47c is used as the first resin member 47a. You may.
  • the battery 41 is located in the fourth concave portion 39, a material having better thermal conductivity than the first resin member 47a and the second resin member 47b may be used as the third resin member 47c.
  • the sensor 9 is a member that measures acceleration, vibration, strain, stress, and the like of the base 7 like a MEMS sensor and a pressure sensor
  • the sensor 9 is used as the second resin member 47b in order to improve measurement accuracy.
  • a material that is less elastically deformable than the first resin member 47a and the third resin member 47c may be used. Which of the first resin member 47a, the second resin member 47b, and the third resin member 47c is easily elastically deformed may be evaluated by using, for example, a nanoindentation method.
  • the holder 3 may have a first cover member 49.
  • the first cover member 49 is located at the opening of the second recess 23.
  • the first cover member 49 is located on the first wireless communication unit 11.
  • the first resin member 47a may be filled in the second concave portion 23, and the first cover member 49 may be located on the first resin member 47a.
  • the first wireless communication unit 11 is protected by the first resin member 47a and the first cover member 49. Therefore, the first wireless communication unit 11 is harder to be damaged.
  • the holder 3 may have the second cover member 51 and / or the third cover member. As shown in FIG. 8, the second cover member 51 may be located at the opening of the third recess 37. In addition, it may be rephrased that the second cover member 51 is located above the sensor 9. When the holder 3 has such a second cover member 51, the sensor 9 is not easily damaged during cutting.
  • the third recess 37 may be filled with a second resin member 47b, and the second cover member 51 may be located on the second resin member 47b.
  • the sensor 9 is protected by the second resin member 47b and the second cover member 51. Therefore, the sensor 9 is hardly damaged.
  • the third cover member may be located at the opening of the fourth recess 39. In other words, the third cover member may be located on the battery 41. When the holder 3 has such a third cover member, the battery 41 is not easily damaged during cutting.
  • the fourth recess 39 may be filled with a third resin member 47c, and the third cover member may be located on the third resin member 47c.
  • the battery 41 is protected by the third resin member 47c and the third cover member. Therefore, the battery 41 is harder to be damaged.
  • the first cover member 49, the second cover member 51, and the third cover member are not limited to specific materials.
  • an organic material such as plastic, an inorganic material such as glass, or a metal such as stainless steel may be used. From the viewpoint of ease of attachment to the base 7, these cover members may be made of metal.
  • the first cover member 49 may have at least one opening 49a. As shown in FIG. 1, the first cover member 49 may have a plurality of openings 49a. As described above, the first wireless communication unit 11 may be located in the second recess 23. When the first cover member 49 has at least one opening 49a, a signal of wireless communication between the first wireless communication unit 11 and the outside easily passes through the opening 49a. From the viewpoint of enhancing the advantage that the first wireless communication unit 11 is protected by the first cover member 49, the first cover member 49 may not have the opening 49a.
  • the second cover member 51 and the third cover member need not have openings. This is because the sensor 9 is located in the third recess 37 and the battery 41 is located in the fourth recess 39. Since the sensor 9 and the battery 41 do not need to perform wireless communication with the outside, the second cover member 51 and the third cover member do not have to have openings.
  • the cut workpiece 103 is manufactured by cutting the work material 101.
  • the method for manufacturing the cut workpiece 103 according to the embodiment includes the following steps. That is, (1) a step of rotating the work material 101; (2) bringing the cutting tool 1 represented by the above embodiment into contact with the rotating work material 101; (3) a step of separating the cutting tool 1 from the work material 101; It has.
  • the work material 101 is rotated around the axis O2, and the cutting tool 1 is relatively brought closer to the work material 101.
  • the cutting edge of the cutting tool 1 is brought into contact with the workpiece 101 to cut the workpiece 101.
  • the cutting tool 1 is relatively moved away from the work material 101.
  • the cutting tool 1 is moved in the Y1 direction while the shaft O2 is fixed and the work material 101 is rotated so as to approach the work material 101.
  • the work material 101 is cut by bringing the cutting edge of the insert 5 into contact with the rotating work material 101.
  • the cutting tool 1 is moved away in the Y2 direction while the work material 101 is being rotated.
  • the cutting tool 1 in each step, is moved to contact the cutting tool 1 with the work material 101, or the cutting tool 1 is separated from the work material 101.
  • the present invention is not limited to such a form.
  • the work material 101 may be brought closer to the cutting tool 1.
  • the work material 101 may be moved away from the cutting tool 1.
  • the step of keeping the rotating state of the work material 101 and bringing the cutting blade of the insert 5 into contact with different portions of the work material 101 may be repeated.
  • typical examples of the material of the work material 101 include carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metals.
  • the state of the base 7 changes. For example, since a cutting load is applied to the cutting tool 1 during cutting, the base 7 vibrates, and strain and internal stress are generated in the base 7. Further, the temperature of the base 7 is increased by performing the cutting process, and the vibration mode of the base 7 is changed by the wear of the cutting blade 25.
  • the sensor 9 when the sensor 9 is a thermocouple, the temperature of the base 7 can be measured.
  • the sensor 9 is a piezoelectric sensor, the vibration, strain and internal stress of the base 7 can be measured. As described above, the sensor 9 has the measuring means for measuring the state of the base 7.
  • the information measured by the sensor 9 is transmitted from the sensor 9 to the first wireless communication unit 11. That is, as shown in FIG. 12, the sensor 9 includes a first transmission unit C1 that transmits the measured information to the first wireless communication unit 11. The information transmitted from the sensor 9 is transmitted from the first wireless communication unit 11 to the outside. That is, the first wireless communication unit 11 includes the second transmission unit C2 that wirelessly communicates information transmitted from the sensor 9 with the outside.
  • the information transmitted from the first wireless communication unit 11 to the outside is received by, for example, the above-described second wireless communication unit 33 and transmitted to the evaluation unit 35.
  • the information transmitted to the evaluation unit 35 is compared with information based on a result measured in advance, and the state of the base 7 is evaluated. That is, the evaluation unit 35 has a first evaluation unit that evaluates the state of the base 7.
  • processing conditions such as the feed amount, the rotation speed of the work material 101, and the injection amount of the coolant (coolant) may be changed.
  • the changed processing conditions are transmitted to the control unit of the machine tool. That is, the evaluation unit 35 evaluates the processing condition based on the result evaluated by the first evaluation unit, and the second wireless communication unit 33 transmits the changed processing condition evaluated by the second evaluation unit. And a third transmitting unit C3 for transmitting to
  • the second wireless communication unit 33 has a fourth transmission unit C4 that transmits information to a control unit in the machine tool.
  • the processing condition after the change is transmitted to the control unit by the fourth transmission unit C4.
  • the cutting is continued or the cutting is stopped according to the changed processing conditions.
  • the evaluation unit 35 may include a third evaluation unit that evaluates whether the cutting tool 1 has been separated from the work material 101.
  • the cutting tool 1 is separated from the work material 101. Therefore, the vibration, strain, and / or internal stress of the base 7 become substantially zero.
  • the third evaluation unit may evaluate that the cutting tool 1 has been separated from the work material 101 when information on vibration, strain, internal stress, and the like has fallen below a predetermined strength for a certain period of time.
  • the wireless communication between the first wireless communication unit 11 and the outside is performed in order to suppress power consumption of the battery 41.
  • Communication may be temporarily stopped. For example, when a signal for temporarily stopping wireless communication is transmitted from the second wireless communication unit 33 to the control unit, wireless communication between the first wireless communication unit 11 and the outside is temporarily stopped. Is also good.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Drilling Tools (AREA)

Abstract

L'invention concerne un support qui, selon un mode de réalisation, comprend une base, un capteur et une unité de transmission sans fil. La base a une forme de tige s'étendant d'une première extrémité à une seconde extrémité et a un premier évidement et un second évidement. Le premier évidement est situé sur le côté première extrémité et peut comporter un insert de coupe comprenant un bord de coupe fixé. Le second évidement est situé plus près de la seconde extrémité que le premier évidement. Le capteur est fixé à la base et peut mesurer l'état de la base. L'unité de transmission sans fil est montée dans le second évidement, est reliée au capteur par des fils, et peut transmettre sans fil vers l'extérieur les informations mesurées par le capteur.
PCT/JP2019/007005 2018-10-01 2019-02-25 Support, outil de coupe et procédé de fabrication de pièce à travailler WO2020070907A1 (fr)

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