WO2024024549A1 - 切削工具、及び切削加工物の製造方法 - Google Patents

切削工具、及び切削加工物の製造方法 Download PDF

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Publication number
WO2024024549A1
WO2024024549A1 PCT/JP2023/026100 JP2023026100W WO2024024549A1 WO 2024024549 A1 WO2024024549 A1 WO 2024024549A1 JP 2023026100 W JP2023026100 W JP 2023026100W WO 2024024549 A1 WO2024024549 A1 WO 2024024549A1
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WO
WIPO (PCT)
Prior art keywords
sensor
holder
cutting tool
unit base
recess
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/026100
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English (en)
French (fr)
Japanese (ja)
Inventor
重孝 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP2024537609A priority Critical patent/JP7784553B2/ja
Priority to DE112023003198.3T priority patent/DE112023003198T5/de
Priority to CN202380054526.5A priority patent/CN119497656A/zh
Publication of WO2024024549A1 publication Critical patent/WO2024024549A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B23B29/12—Special arrangements on tool holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/128—Sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/128—Sensors
    • B23B2260/1285—Vibration sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/16—Constructions comprising three or more similar components

Definitions

  • the present disclosure relates to a cutting tool used for cutting a workpiece, and a method for manufacturing a cut workpiece.
  • the cutting tool described in Patent Document 1 is known as a cutting tool used in cutting a workpiece for manufacturing a cut workpiece.
  • the cutting tool described in Patent Document 1 includes a sensor section for detecting a physical quantity (referred to as physical information in Patent Document 1) of a cutting insert (referred to as a cutting blade in Patent Document 1). Wear and tear of the cutting insert, temperature, pressure, and vibration are exemplified as the physical quantities, and a cutting tool equipped with a temperature sensor is disclosed as an example.
  • a cutting tool includes a holder, a cutting insert, and a sensor unit.
  • the holder has a rod shape extending from the tip toward the rear end, and has a tip surface located on the tip side, an upper surface extending from the tip surface toward the rear end, and a lower surface located on the opposite side of the upper surface. , a first side surface located between the upper surface and the lower surface and extending from the distal end surface toward the rear end; a second side surface located on the opposite side of the first side surface; It has an open pocket.
  • the cutting insert is located in the pocket and has a cutting edge.
  • the sensor unit includes a unit base, a first sensor, and a second sensor.
  • the unit base is located from the lower surface to the second side surface, has a first recessed portion opening toward the lower surface, and a second recessed portion opening toward the second side surface, and has an L-shape in a cross section perpendicular to the longitudinal direction of the holder. It is shaped like this.
  • the first sensor is located in the first recess, contacts the lower surface, and detects a physical quantity of the holder (cutting tool).
  • the second sensor is located in the second recess, contacts the second side surface, and detects a physical quantity of the holder (cutting tool) in a detection direction perpendicular to the detection direction of the first sensor.
  • FIG. 1 is a schematic perspective view of a cutting tool according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic perspective view of the cutting tool shown in FIG. 1 viewed from another angle.
  • FIG. 2 is a schematic plan view of the cutting tool shown in FIG. 1.
  • FIG. FIG. 2 is a schematic view of the cutting tool shown in FIG. 1 viewed from the tip side.
  • FIG. 2 is a schematic side view of the cutting tool shown in FIG. 1.
  • FIG. 6 is a schematic enlarged view of another side of the cutting tool shown in FIG. 5.
  • FIG. 6 is a sectional view taken along line VII-VII in FIG. 5.
  • FIG. 6 is a sectional view taken along line VIII-VIII in FIG. 5.
  • FIG. 6 is a sectional view taken along line IX-IX in FIG. 5.
  • FIG. FIG. 3 is a schematic perspective view of a cutting tool according to another embodiment of the present disclosure.
  • 11 is a schematic side view of the cutting tool shown in FIG. 10.
  • FIG. FIG. 3 is a schematic perspective view of a cutting tool according to another embodiment of the present disclosure.
  • FIG. 13 is a schematic view of the cutting tool shown in FIG. 12 viewed from the tip side.
  • FIG. 2 is a schematic diagram illustrating a method for manufacturing a cut workpiece according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram illustrating a method for manufacturing a cut workpiece according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram illustrating a method for manufacturing a cut workpiece according to an embodiment of the present disclosure.
  • the sensor part In order to avoid the sensor part from falling off, it is also possible to incorporate the sensor part into the holder of the cutting tool.
  • the sensor section is a temperature sensor, since the sensor section is small, there is little possibility that the strength of the holder will be significantly reduced.
  • the sensor section is a pressure sensor or a vibration sensor, the strength (rigidity) of the holder decreases due to the built-in sensor section, which cannot be ignored.
  • cutting inserts according to embodiments of the present disclosure may include any components not shown in the referenced figures.
  • the dimensions of the components in each figure do not faithfully represent the actual dimensions of the components and the dimensional ratios of each member.
  • the X direction refers to the front-rear direction, and one side in the X direction is the front side or forward direction, and the other side in the X direction is the rear side or backward direction.
  • the Y direction refers to the left-right direction, and one side in the Y direction is the left side or left direction, and the other side in the Y direction is the right side or right direction.
  • the Z direction refers to an up-down direction, and one side in the Z direction is the upper side or upper direction, and the other side in the Z direction is the lower side or downward direction.
  • the XY direction refers to the two directions, the X direction and the Y direction
  • the XZ direction refers to the two directions, the X direction and the Z direction
  • the YZ direction refers to the two directions, the Y direction and the Z direction.
  • the XYZ directions refer to three directions: the X direction, the Y direction, and the Z direction.
  • FF indicates the front direction
  • FR indicates the rear direction
  • L indicates the left direction
  • R indicates the right direction
  • U indicates the upward direction
  • D indicates the downward direction.
  • FIG. 1 is a schematic perspective view of a cutting tool 10 according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic perspective view of the cutting tool shown in FIG. 1 viewed from another angle.
  • FIG. 3 is a schematic plan view of the cutting tool 10 shown in FIG.
  • FIG. 4 is a schematic diagram of the cutting tool 10 shown in FIG. 1 viewed from the tip side.
  • FIG. 5 is a schematic side view of the cutting tool 10 shown in FIG. 1.
  • FIG. 6 is an enlarged side view of the vicinity of the sensor unit when viewed from the opposite side to FIG.
  • FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5.
  • FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.
  • FIG. 9 is a sectional view taken along line IX-IX in FIG. 5.
  • the cutting tool 10 is a tool used for cutting a workpiece W (see FIG. 10). Cutting of the work material W includes outer diameter processing, inner diameter processing, grooving, parting, and the like.
  • the cutting tool 10 also includes a holder 14 mounted on a tool post 12 of a lathe, a cutting insert 16 held in the holder 14, a clamp 18 that fixes the cutting insert 16 to the holder 14, and a clamp 18 that is attached to the holder.
  • a clamp screw 20 for attachment to 14 may also be provided.
  • the holder 14 may have a rod shape extending along the X direction from the front end 14a toward the rear end 14b.
  • the longitudinal direction of the holder 14 may be the X direction.
  • the holder 14 may have a square columnar main body 14m located closer to the rear end 14b than the clamp 18.
  • the holder 14 may have a distal end surface 22 located on the distal end 14a side and a rear end surface 24 located on the opposite side of the distal end surface 22.
  • the holder 14 may have an upper surface 26 extending in the X direction from the distal end surface 22 to the rear end surface 24 toward the rear end 14b.
  • Holder 14 may have a lower surface 28 located on the opposite side of upper surface 26, and lower surface 28 may extend in the X direction from distal end surface 22 toward rear end surface 24 to rear end surface 24.
  • the holder 14 may have a first side surface 30 located between the upper surface 26 and the lower surface 28, and the first side surface 30 extends in the X direction from the distal end surface 22 toward the rear end surface 24b. You can.
  • the first side 30 of the holder 14 may connect to the top surface 26 and the bottom surface 28. In the main body portion 14m of the holder 14, the first side surface 30 may be perpendicular to the lower surface 28 and the upper surface 26.
  • the holder 14 may have a second side surface 32 located on the opposite side of the first side surface 30, and the second side surface 32 extends in the X direction from the distal end surface 22 toward the rear end surface 24b. Good too.
  • the second side 32 of the holder 14 may connect to the top surface 26 and the bottom surface 28. In the main body portion 14m of the holder 14, the second side surface 32 may be perpendicular to the lower surface 28 and the upper surface 26.
  • the front end surface 22, rear end surface 24, upper surface 26, lower surface 28, first side surface 30, and second side surface 32 of the holder 14 may constitute the outer surface of the holder 14.
  • the holder 14 may have a pocket 34 for holding the cutting insert 16 on the side of the tip 14a. Pocket 34 may be open to distal surface 22 , top surface 26 , and first side surface 30 .
  • the lower surface 28 of the main body portion 14m of the holder 14 is supported by the mounting surface 12a of the tool rest 12 (see FIG. 8).
  • the second side surface 32 of the main body portion 14m of the holder 14 is supported by the inner wall surface 12b of the tool rest 12 (see FIG. 8).
  • the upper surface 26 of the main body 14m of the holder 14 is pressed by the fixing screw 12c (see FIG. 8) of the tool post 12.
  • Examples of the material of the holder 14 include metals such as stainless steel, carbon steel, cast iron, and aluminum alloy.
  • the length of the holder 14 may be set to, for example, 100 mm to 400 mm.
  • the cutting insert 16 may be located in a pocket 34 of the holder 14.
  • the cutting insert 16 may be a replaceable insert called a throw-away insert.
  • the cutting insert 16 may have a square plate shape, or may have a triangular plate shape, a pentagonal plate shape, or the like other than the square plate shape.
  • the cutting insert 16 has a first insert surface 36, a second insert surface 38 located on the opposite side of the first insert surface 36, and a plurality of insert side surfaces located between the first insert surface 36 and the second insert surface 38. 40.
  • the cutting insert 16 may have a cutting edge 42 at the intersection of the first insert surface 36 and the insert side surface 40.
  • the first insert surface 36 may function as a rake surface for shedding chips.
  • the insert side surface 40 may function as a relief surface.
  • the cutting insert 16 may have a through hole 44 that opens to the first insert surface 36 and the second insert surface 38.
  • the cutting insert 16 is attached to the pocket 34 by tightening the clamp screw 20 with the tip of the clamp 18 locked in the through hole 44 .
  • Examples of the material of the cutting insert 16 include cemented carbide or cermet.
  • Examples of the composition of the cemented carbide include WC-Co, WC-TiC-Co, and WC-TiC-TaC-Co.
  • WC-Co is produced by adding cobalt (Co) powder to tungsten carbide (WC) and sintering it.
  • WC-TiC-Co is WC-Co with titanium carbide (TiC) added.
  • WC-TiC-TaC-Co is WC-TiC-Co with tantalum carbide (TaC) added.
  • cermet is a sintered composite material in which a metal is combined with a ceramic component.
  • examples of cermets include those whose main component is a titanium compound such as titanium carbide (TiC) and titanium nitride (TiN).
  • the surface of the cutting insert 16 may be coated with a film using a chemical vapor deposition (CVD) method or a physical vapor deposition (PVD) method.
  • CVD chemical vapor deposition
  • PVD physical vapor deposition
  • the material of the coating include titanium carbide (TiC), titanium nitride (TiN), titanium carbonitride (TiCN), and alumina (Al 2 O 3 ).
  • the cutting tool 10 may include a sensor unit 46 for detecting physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 (cutting tool 10).
  • the sensor unit 46 may include a unit base 48 located from the lower surface 28 of the main body 14m of the holder 14 to the second side surface 32.
  • the unit base 48 may be attached to the main body portion 14m of the holder 14 with an adhesive.
  • the unit base 48 may be attached to the main body 14m of the holder 14 by the magnetic force of a built-in magnet. Further, the unit base 48 may be attached to the main body portion 14m of the holder 14 with a fixing member such as a screw. Examples of the material for the unit base 48 include synthetic resin and metal.
  • the unit base 48 may be L-shaped in a cross section perpendicular to the X direction, which is the longitudinal direction of the holder 14.
  • the sensor unit 46 may have an L-shape in a cross section perpendicular to the X direction.
  • the unit base 48 may have a first portion 48 a located on the lower surface 28 of the holder 14 and a second portion 48 b located on the second side surface 32 of the holder 14 .
  • the distance in the X direction from the unit base 48 to the distal end surface 22 of the holder 14 may be shorter than the distance in the X direction from the unit base 48 to the rear end surface 24 of the holder 14.
  • the entire first portion 48a of the unit base 48 may be located closer to the second side surface 32 of the holder 14 than the first side surface 30.
  • the entire second portion 48b of the unit base 48 may be located closer to the lower surface 28 of the holder 14 than to the upper surface 26.
  • the first portion 48a of the unit base 48 may have a first recess 50 that opens toward the lower surface 28 of the holder 14.
  • the first recess 50 of the unit base 48 may be a bottomed hole (depression) or a penetrating hole.
  • the second portion 48b of the unit base 48 may have a second recess 52 that opens toward the second side surface 32 of the holder 14.
  • the second recess 52 of the unit base 48 may be a bottomed hole or a penetrating hole.
  • the unit base 48 may further include another recess.
  • the first portion 48a of the unit base 48 may further include a recess that opens toward the lower surface 28 of the holder 14, separate from the second recess 52.
  • the second portion 48b of the unit base 48 may have a third recess 54 that opens toward the second side surface 32 of the holder 14.
  • the third recess 54 of the unit base 48 may be a bottomed hole or a penetrating hole.
  • the first recess 50, the second recess 52, and the third recess 54 in the unit base 48 may be independent from each other or may be continuous.
  • the first recess 50 of the unit base 48 may be independent from the second recess 52 and the third recess 54, and the third recess 54 of the unit base 48 may be continuous with the second recess 52.
  • the sensor unit 46 may include a first sensor 56 located within the first recess 50 of the unit base 48.
  • the first sensor 56 may be fixed within the first recess 50 of the unit base 48 with an adhesive or the like.
  • the first sensor 56 may detect one or more of physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14.
  • the detection direction of the first sensor 56 may be the Y direction.
  • the first sensor 56 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the Y direction.
  • the first sensor 56 may detect the acceleration of the holder 14 corresponding to the feeding component force.
  • the first sensor 56 may abut the lower surface 28 of the holder 14 . When the first sensor 56 is in contact with the lower surface 28 of the holder 14, the accuracy regarding detection of the above-mentioned physical quantity is improved.
  • the sensor unit 46 may include a second sensor 58 located within the second recess 52 of the unit base 48.
  • the second sensor 58 may be fixed within the second recess 52 of the unit base 48 with an adhesive or the like.
  • the position of the second sensor 58 in the X direction may be the same as the position of the first sensor 56 in the X direction. In other words, the position of the center of the second sensor 58 in the X direction may be within a range of ⁇ 1 mm with respect to the position of the center of the first sensor 56 in the X direction.
  • the second sensor 58 may abut the second side surface 32 of the holder 14 .
  • the second sensor 58 may abut the second side surface 32 of the holder 14 .
  • the second sensor 58 may come into contact with the second side surface 32 of the holder 14.
  • the second sensor 58 may detect one or more of physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14.
  • the second sensor 58 may detect the same physical quantity as the first sensor 56.
  • the detection direction of the second sensor 58 may be the X direction orthogonal to the detection direction of the first sensor 56.
  • the second sensor 58 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the X direction.
  • the second sensor 58 may detect the acceleration of the holder 14 corresponding to the thrust force.
  • the cutting tool 10 of the present disclosure does not have a configuration in which sensors such as the first sensor 56 and the second sensor 58 are embedded in the holder 14, but has a configuration in which a sensor unit 46 separate from the holder 14 has the sensors. There is. Therefore, there is no need to perform complicated processing to embed the sensor inside the holder 14, and the existing holder 14 can be easily utilized.
  • the sensor unit 46 may include a third sensor 60 located within the third recess 54 of the unit base 48.
  • the third sensor 60 may be fixed within the third recess 54 of the unit base 48 with an adhesive or the like.
  • the third sensor 60 may be in contact with the second side surface 32 of the holder 14 .
  • the position of the third sensor 60 in the X direction may be the same as the position of the second sensor 58 in the X direction. In other words, the position of the center of the third sensor 60 in the X direction may be within a range of ⁇ 1 mm with respect to the position of the center of the second sensor 58 in the X direction.
  • the third sensor 60 may detect one or more of physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14.
  • the third sensor 60 may detect the same physical quantity as the first sensor 56 and the second sensor 58.
  • the detection direction of the third sensor 60 may be the Z direction orthogonal to the detection directions of the first sensor 56 and the second sensor 58.
  • the third sensor 60 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the Z direction.
  • the third sensor 60 may detect the acceleration of the holder 14 corresponding to the principal component force.
  • the first sensor 56, the second sensor 58, and the third sensor 60 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the XYZ directions.
  • the first sensor 56, the second sensor 58, and the third sensor 60 may detect the acceleration of the holder 14 corresponding to the cutting load in three directions (principal force, back force, and feed force).
  • the positions of the first sensor 56, the second sensor 58, and the third sensor 60 in the X direction may be the same.
  • the first sensor 56, the second sensor 58, and the third sensor 60 may be capacitance detection type sensors or piezoresistive type sensors.
  • the sensors may be MEMS (Micro Electro Mechanical Systems).
  • the detection direction of the first sensor 56 may be changed from the Y direction to the XY direction.
  • the first sensor 56 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the XY directions.
  • the first sensor 56 may detect the acceleration of the holder 14 corresponding to the feed component force and the main component force. In these cases, either the second sensor 58 or the third sensor 60 may be omitted from the components of the sensor unit 46.
  • the detection direction of the second sensor 58 may be changed from the X direction to the XZ direction.
  • the second sensor 58 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the XZ directions.
  • the second sensor 58 may detect acceleration of the holder 14 corresponding to the thrust force and the principal force.
  • the third sensor 60 may be omitted from the components of the sensor unit 46.
  • the detection direction of the third sensor 60 may be changed from the Z direction to the XZ direction.
  • the third sensor 60 may detect physical quantities such as acceleration, vibration, distortion, or internal stress of the holder 14 in the XZ directions.
  • the third sensor 60 may detect the acceleration of the holder 14 corresponding to the principal force and the thrust force.
  • the second sensor 58 may be omitted from the components of the sensor unit 46.
  • the cutting tool 10 includes wiring electrically connected to a first sensor 56, a second sensor 58, and a third sensor 60.
  • a member 62 may also be provided.
  • the wiring member 62 may extend in the X direction from the first sensor 56 etc. side toward the rear end 14b of the holder 14.
  • the holder 14 may have a groove 64 extending in the X direction from the first sensor 56 etc. side toward the rear end 14b of the holder 14.
  • the groove 64 of the holder 14 may be open to the second side surface 32.
  • the groove 64 of the holder 14 may be open to the lower surface 28.
  • the groove 64 of the holder 14 may be open to the lower surface 28 and the second side surface 32.
  • the wiring member 62 may be located within the groove 64 of the holder 14.
  • the groove 64 of the holder 14 may accommodate the wiring member 62.
  • the wiring member 62 may include a wiring conductor 66 electrically connected to the first sensor 56 , the second sensor 58 , and the third sensor 60 .
  • the wiring conductor 66 may extend in the X direction from the first sensor 56 etc. side toward the rear end 14b of the holder 14.
  • the wiring member 62 may include a cylindrical holding member 68 that holds the wiring conductor 66.
  • the retaining member 68 may be located within the groove 64 of the holder 14. In other words, the groove 64 of the holder 14 may accommodate the holding member 68.
  • the material of the holding member 68 may be the same as that of the holder 14.
  • the wiring member 62 may be electrically connected to an information processing device installed outside the machine tool or the like.
  • the information processing device may be configured by a computer, and may include a memory that stores various control programs and the like, and a CPU (Central Processing Unit) that interprets and executes the control programs.
  • CPU Central Processing Unit
  • the information processing device exhibits various functions by executing the control program by the CPU.
  • the information processing device may adjust the moving speed of the cutting tool 10 based on the physical quantities of the holder 14 detected by the first sensor 56, the second sensor 58, and the third sensor 60.
  • the information processing device may adjust the rotational speed of the workpiece W based on the physical quantities of the holder 14 detected by the first sensor 56, the second sensor 58, and the third sensor 60.
  • At least two of the first sensor 56, the second sensor 58, and the third sensor 60 measure acceleration, vibration, distortion, internal stress, etc. of the holder 14 in the XYZ directions. Physical quantities can be detected. At least two of the first sensor 56, the second sensor 58, and the third sensor 60 measure the acceleration, etc. of the holder 14 corresponding to the cutting loads in three directions (main force, back force, and feed force). can be detected. Therefore, according to the example embodiment of the present disclosure, high detection accuracy of the sensor unit 46 can be ensured.
  • the detection accuracy of the sensor unit 46 can be improved.
  • the position of the third sensor 60 in the X direction is the same as the position of the second sensor 58 in the X direction, the detection accuracy of the sensor unit 46 can be further improved.
  • the holder 14 When the distance in the X direction from the unit base 48 to the front end surface 22 of the holder 14 is shorter than the distance in the X direction from the unit base 48 to the rear end surface 24 of the holder 14, the holder 14 has a large change in physical quantity such as acceleration.
  • the sensor unit 46 is located closer to the distal end surface 22 of the sensor unit 46 . Therefore, according to the example of the embodiment of the present disclosure, since it is close to the cutting point, it becomes possible to capture minute physical quantity changes, and the detection accuracy of the sensor unit 46 can be improved.
  • the unit base 48 is located from the lower surface 28 of the main body portion 14m of the holder 14 to the second side surface 32, which is a perpendicular region on the outer surface of the holder 14.
  • the unit base 48 has an L-shape in a cross section perpendicular to the X direction, which is the longitudinal direction of the holder 14 . Therefore, the unit base 48 can be attached to the outer surface of the holder 14 without performing any processing such as gouging the holder 14. Thereby, according to the example of the embodiment of the present disclosure, the durability (rigidity) of the holder 14 can be increased.
  • the unit base 48 is L-shaped in the cross section perpendicular to the X direction, compared to the case where a cubic-shaped unit base is attached to the outer surface of the holder 14, , the amount of protrusion of the sensor unit 46 relative to the outer surface of the holder 14 can be reduced.
  • the sensor unit 46 is less susceptible to the effects of chips, increasing the durability of the sensor unit 46, and making it easier to attach the cutting tool 10 to the tool post 12. .
  • the unit base 48 is attached to the holder 14 from two directions, the lower surface 28 and the second side surface 32 of the holder 14, the unit base 48 is unlikely to fall off from the holder 14. Furthermore, not only is it difficult for the unit base 48 to fall off from the holder 14, but also it is difficult for the unit base 48 to be misaligned with respect to the holder 14.
  • the sensor unit 46 When the entire first portion 48a of the unit base 48 is located closer to the second side surface 32 than the first side surface 30 of the holder 14, the sensor unit 46 extends from the first side surface 30 of the holder 14 in the Y direction. None stands out. Therefore, according to the example of the embodiment of the present disclosure, the sensor unit 46 becomes less susceptible to the influence of chips, and the durability of the sensor unit 46 can be improved.
  • the sensor unit 46 may not protrude from the upper surface 26 of the holder 14 in the Z direction. do not have. Therefore, according to the example of the embodiment of the present disclosure, the sensor unit 46 becomes less susceptible to the influence of chips, and the durability of the sensor unit 46 can be improved.
  • the detection directions of the first sensor 56, the second sensor 58, and the third sensor 60 are one or two of the XYZ directions.
  • the first sensor 56, the second sensor 58, and the third sensor 60 are uniaxial sensors or biaxial sensors. Therefore, the size of each sensor can be made smaller and the sensor unit 46 can be made more compact than when using a three-axis sensor whose detection directions are in the X, Y, and Z directions.
  • the unit base 48 is located from the lower surface 28 of the main body 14m of the holder 14 to the second side surface 32, but it may be configured as follows.
  • the unit base 48 may be located from the lower surface 28 of the holder 14 to the distal end surface 22.
  • the unit base 48 may have a first portion 48a located on the lower surface 28 of the holder 14 and a second portion 48b located on the distal end surface 22 of the holder 14.
  • the first portion 48a of the unit base 48 may have a first recess that opens toward the lower surface 28 of the holder 14.
  • the second portion 48b of the unit base 48 may have a second recess that opens toward the distal end surface 22 of the holder 14.
  • the second portion of the unit base 48 may have a third recess that opens toward the distal end surface 22 of the holder 14 .
  • the first sensor located within the first recess of the unit base 48 may abut the lower surface 28 of the holder 14 .
  • the second sensor located in the second recess of the unit base 48 may be in contact with the distal end surface 22 of the holder 14 .
  • the third sensor located within the third recess of the unit base 48 may be in contact with the distal end surface 22 of the holder 14 .
  • the unit base 48 may be located from the distal end surface 22 of the holder 14 to the second side surface 32.
  • the unit base 48 may have a first portion 48 a located on the distal end surface 22 of the holder 14 and a second portion 48 b located on the second side surface 32 of the holder 14 .
  • the first portion 48a of the unit base 48 may have a first recess that opens toward the distal end surface 22 of the holder 14.
  • the second portion 48b of the unit base 48 may have a second recess that opens toward the second side surface 32 of the holder 14.
  • the second portion of the unit base 48 may have a third recess that opens toward the second side surface 32 of the holder 14 .
  • the first sensor located within the first recess of the unit base 48 may be in contact with the distal end surface 22 of the holder 14 .
  • the second sensor located within the second recess of the unit base 48 may abut the second side surface 32 of the holder 14 .
  • the third sensor located within the third recess of the unit base 48 may abut the second side surface 32 of the holder 14 .
  • the sensor unit 46 is located close to the cutting edge 42 of the cutting insert 16, and the physical quantity of the holder 14 (cutting tool 10) can be detected with high accuracy.
  • the cutting tool 10 of the example shown in FIGS. 1 to 9 can be positioned further away from the processing surface of the workpiece W compared to the cutting tool 10 of the example shown in FIGS. 10 to 13. Therefore, there is little possibility that the sensor unit 46 will come into contact with the machined surface of the workpiece W.
  • FIGS. 14 to 16 are schematic diagrams illustrating a method for manufacturing a cut workpiece according to an embodiment of the present disclosure.
  • the method for manufacturing a cut workpiece according to the embodiment of the present disclosure is a method for manufacturing a cut workpiece M, which is a cut workpiece W that has been subjected to cutting processing. , a first step, a second step, and a third step.
  • the first step is a step of rotating the workpiece W around its axis S.
  • the second step is a step of bringing the cutting insert 16 of the cutting tool 10 into contact with the rotating workpiece W to cut the workpiece W.
  • the third step is a step of separating the cutting tool 10 from the cut workpiece W.
  • the material of the work material W include stainless steel, carbon steel, alloy steel, cast iron, and non-ferrous metals.
  • the cutting tool 10 is attached to the tool rest 12, and the workpiece W is attached to the chuck of the lathe.
  • the chuck is rotated to rotate the workpiece W around its axis S (first step).
  • the cutting tool 10 is moved in the direction of arrow D1 to bring it closer to the workpiece W, and the cutting insert 16 is brought into contact with the rotating workpiece W.
  • the material W is cut (second step). Thereby, the machined surface Wf can be formed on the workpiece W.
  • the cutting tool 10 is moved in the direction of arrow D2 to separate the cutting tool 10 from the workpiece W (third step). Thereby, cutting of the work material W is completed, and a cut workpiece M, which is the cut material W that has been cut, can be manufactured. Since the cutting tool 10 has excellent cutting ability for the reasons mentioned above, it is possible to manufacture a cut workpiece M with excellent processing accuracy.
  • the cutting insert 16 may be brought into contact with different parts of the workpiece W repeatedly while the workpiece W is being rotated.
  • the cutting tool 10 is brought close to the workpiece W, but since it is sufficient that the cutting tool 10 and the workpiece W are relatively close to each other, the workpiece W is brought close to the cutting tool 10. Good too.
  • the same procedure is performed.
  • the cutting tool has a bar shape extending from the tip toward the rear end, and has a tip surface located on the side of the tip, and a tip surface extending from the tip surface toward the rear end. an upper surface, a lower surface located on the opposite side of the upper surface, a first side surface located between the upper surface and the lower surface and extending from the tip surface toward the rear end, and a side opposite to the first side surface.
  • a holder having a second side surface located at the bottom surface, a pocket opening at the distal end surface, the top surface, and the first side surface; a cutting insert located in the pocket and having a cutting edge;
  • the holder has a first recess that is located across two side surfaces and opens toward the lower surface, and a second recess that opens toward the second side surface, and is L-shaped in a cross section perpendicular to the longitudinal direction of the holder.
  • the sensor unit includes a second sensor that detects a physical quantity of the holder in a detection direction perpendicular to a detection direction of the first sensor.
  • the unit base has a third recess that opens toward the second side surface, the sensor unit is located in the third recess, and the second
  • the holder may further include a third sensor that comes into contact with a side surface and detects a physical quantity of the holder in a detection direction perpendicular to the detection directions of the first sensor and the second sensor.
  • the position of the third sensor in the longitudinal direction may be the same as the position of the second sensor in the longitudinal direction.
  • the holder further has a rear end surface located on the opposite side of the tip surface, and the holder further has a rear end surface located on the opposite side of the tip surface, and the longitudinal direction from the unit base to the tip surface.
  • the distance in the direction may be shorter than the distance in the longitudinal direction from the unit base to the rear end surface.
  • the unit base has a first part located on the lower surface and a second part located on the second side surface, The entire first portion may be located closer to the second side than the first side.
  • the unit base has a first part located on the lower surface and a second part located on the second side surface, The entire second portion may be located closer to the lower surface than the upper surface.
  • a method for manufacturing a cut workpiece includes a step of rotating a workpiece, and bringing the cutting tool according to any one of (1) to (6) into contact with the rotating workpiece.
  • the method includes a step of cutting a material, and a step of separating the cutting tool from the cut material.
  • Cutting tool 12 Turret 12a Mounting surface 12b Inner wall surface 12c Fixing screw 14 Holder 14a Tip 14b Rear end 14m Main body 16 Cutting insert 18 Clamp 20 Clamp screw 22 Tip surface 24 Rear end surface 26 Top surface 28 Bottom surface 30 First side surface 32 No. 2 sides 34 pocket 36 first insert surface 38 second insert surface 40 insert side 42 cutting edge 44 through hole 46 sensor unit 48 unit base 48a first part 48b second part 50 first recess 52 second recess 54 third recess 56 First sensor 58 Second sensor 60 Third sensor 62 Wiring member 64 Groove 66 Wiring conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
PCT/JP2023/026100 2022-07-25 2023-07-14 切削工具、及び切削加工物の製造方法 Ceased WO2024024549A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2024537609A JP7784553B2 (ja) 2022-07-25 2023-07-14 切削工具、及び切削加工物の製造方法
DE112023003198.3T DE112023003198T5 (de) 2022-07-25 2023-07-14 Schneidwerkzeug und Verfahren zur Herstellung eines maschinell bearbeiteten Produkts
CN202380054526.5A CN119497656A (zh) 2022-07-25 2023-07-14 切削刀具以及切削加工物的制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-118229 2022-07-25
JP2022118229 2022-07-25

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CN (1) CN119497656A (https=)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007036002A1 (de) * 2007-07-30 2009-02-05 Genesis Adaptive Systeme Deutschland Gmbh In-Prozess-Überwachungsvorrichtung für ein Bearbeitungswerkzeug
WO2015011489A1 (en) * 2013-07-25 2015-01-29 Brunel University Cutting tool with surface acoustic wave sensor
JP2018043339A (ja) * 2016-09-09 2018-03-22 株式会社ＮｅｊｉＬａｗ 切削ヘッド、切削バイト、切削加工システム
WO2022123731A1 (ja) * 2020-12-10 2022-06-16 住友電気工業株式会社 処理システム、表示システム、処理装置、処理方法および処理プログラム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007036002A1 (de) * 2007-07-30 2009-02-05 Genesis Adaptive Systeme Deutschland Gmbh In-Prozess-Überwachungsvorrichtung für ein Bearbeitungswerkzeug
WO2015011489A1 (en) * 2013-07-25 2015-01-29 Brunel University Cutting tool with surface acoustic wave sensor
JP2018043339A (ja) * 2016-09-09 2018-03-22 株式会社ＮｅｊｉＬａｗ 切削ヘッド、切削バイト、切削加工システム
WO2022123731A1 (ja) * 2020-12-10 2022-06-16 住友電気工業株式会社 処理システム、表示システム、処理装置、処理方法および処理プログラム

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CN119497656A (zh) 2025-02-21

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