Turning Tools

Abstract

The turning tool holds a cutting tip. The turning tool is supplied with power from an external power source via a cable. The turning tool has a body, a sensor, and a terminal. The body has a first body region and a second body region. The cutting tip is attached to the first body region. The second body region is continuous with the first body region. The sensor is attached to the body. The terminal is electrically connected to the sensor. The cable is connected to the terminal. The second body region has a rear end face and an outer side face. The rear end face is opposite to the first body region. The outer side face is continuous with the rear end face and has a recess. The extension direction of the terminal is inclined with respect to a longitudinal direction from the first body region toward the rear end face, or is perpendicular to the longitudinal direction. At least a portion of the terminal is disposed within the recess. At least a portion of the entire circumference of the terminal is surrounded by an inner wall of the recess.

Description

[Technical field]

[0001] The present disclosure relates to turning tools. [Background technology]

[0002] International Publication No. 2020 / 171156 (Patent Document 1) describes a holder having a pocket into which an insert having a cutting edge can be attached, a terminal for external connection, and a sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020 / 171156 Summary of the Invention

[0004] The turning tool according to the present disclosure holds a cutting tip. The turning tool is supplied with power from an external power source via a cable. The turning tool includes a body, a sensor, and a terminal. The body includes a first body region and a second body region. The cutting tip is attached to the first body region. The second body region is continuous with the first body region. The sensor is attached to the body. The terminal is electrically connected to the sensor. A cable is connected to the terminal. The second body region has a rear end face and an outer side face. The rear end face is opposite to the first body region. The outer side face is continuous with the rear end face. The outer side face is provided with a recess. The extension direction of the terminal is perpendicular to the longitudinal direction, inclined with respect to the longitudinal direction from the first body region to the rear end face. At least a portion of the terminal is disposed within the recess. At least a portion of the entire circumference of the terminal is surrounded by an inner wall of the recess. [Brief description of the drawings]

[0005] [Figure 1] FIG. 1 is a first perspective schematic view showing the configuration of a turning tool according to a first embodiment. [Diagram 2]FIG. 2 is a second perspective schematic view showing the configuration of the turning tool according to the first embodiment. [Diagram 3] FIG. 3 is a first perspective schematic view showing the configuration of the turning tool with the lid removed. [Figure 4] FIG. 4 is a second perspective schematic view showing the configuration of the turning tool with the lid removed. [Diagram 5] FIG. 5 is a schematic side view showing the configuration of a turning tool. [Figure 6] FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is an enlarged schematic cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. 8 is a schematic perspective view showing the configuration of a turning tool according to the second embodiment. [Figure 9] FIG. 9 is an enlarged schematic view showing the configuration of a turning tool according to the second embodiment. [Figure 10] FIG. 10 is an enlarged schematic cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 11 is an enlarged schematic cross-sectional view showing the configuration of a turning tool according to the third embodiment. [Figure 12] FIG. 12 is a schematic perspective view showing the configuration of a turning tool according to a fourth embodiment. [Figure 13] FIG. 13 is an enlarged schematic view showing the configuration of a turning tool according to the fourth embodiment. [Figure 14] FIG. 14 is a schematic perspective view showing the configuration of a turning tool according to the fifth embodiment. [Figure 15] FIG. 15 is an enlarged schematic cross-sectional view showing the configuration of a turning tool according to the fifth embodiment. [Figure 16] FIG. 16 is a schematic perspective view showing the configuration of a turning tool according to the sixth embodiment. [Figure 17] FIG. 17 is an enlarged schematic cross-sectional view showing the configuration of a turning tool according to the sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] [Problem that this disclosure aims to solve] Patent Document 1 does not disclose a specific configuration of the terminal to which the power supply cable is connected.

[0007] The object of the present disclosure is to provide a turning tool that can shorten the length of the portion of the cable that protrudes outside the turning tool from the outer surface when the extension direction of the terminal is inclined to or perpendicular to the longitudinal direction of the turning tool.

[0008] [Effects of this disclosure] According to the present disclosure, a turning tool can be provided that can shorten the length of the portion of the cable that protrudes from the outer surface to the outside of the turning tool when the extension direction of the terminal is inclined to the longitudinal direction of the turning tool or perpendicular to the longitudinal direction of the turning tool.

[0009] [Overview of the embodiment] First, an overview of the embodiment of the present disclosure will be described.

[0010] (1) A turning tool according to the present disclosure holds a cutting tip. The turning tool is supplied with power from an external power source via a cable. The turning tool has a body, a sensor, and a terminal. The body has a first body region and a second body region. The cutting tip is attached to the first body region. The second body region is continuous with the first body region. The sensor is attached to the body. The terminal is electrically connected to the sensor. A cable is connected to the terminal. The second body region has a rear end face and an outer side surface. The rear end face is opposite to the first body region. The outer side surface is continuous with the rear end face and has a recess. The extension direction of the terminal is inclined with respect to a longitudinal direction from the first body region toward the rear end face, or is perpendicular to the longitudinal direction. At least a portion of the terminal is disposed within the recess. At least a portion of the entire circumference of the terminal is surrounded by an inner wall of the recess.

[0011] According to the turning tool of the present disclosure, the length of the portion of the cable protruding from the outer surface to the outside of the turning tool can be shortened even when the extension direction of the first terminal is inclined with respect to the longitudinal direction or perpendicular to the longitudinal direction.

[0012] (2) According to the turning tool of (1) above, the entire terminal may be disposed within the recess, thereby making it possible to shorten the length of the portion of the cable that protrudes from the outer surface to the outside of the turning tool.

[0013] (3) According to the turning tool of (1) or (2) above, when viewed perpendicularly to the outer surface on which the recess is provided, the terminal may be surrounded by the inner wall of the recess, which makes it possible to prevent the cable from protruding from the rear end face to the outside of the turning tool.

[0014] (4) According to the turning tool according to any one of (1) to (3) above, the second body region may have an inner wall surface. The inner wall surface may be continuous with the outer surface. The inner wall surface may form a part of the recess. The inner wall surface may extend along a direction perpendicular to the direction from the first body region toward the rear end surface. This makes it possible to further shorten the length of the portion of the cable that protrudes from the outer surface to the outside of the turning tool when the shape of the end of the cable is L-shaped.

[0015] (5) The turning tool according to (4) above may further include a housing. The housing may support the terminal. The second body region may have a bottom surface. The bottom surface may be continuous with the inner wall surface. The inner wall surface and the bottom surface may form a recess. The housing may be provided on the bottom surface. This allows the length of the portion of the cable that is placed in the recess to be increased.

[0016] (6) According to the turning tool according to any one of (1) to (3) above, the second body region may have an inner wall surface. The inner wall surface may be continuous with the outer surface. The inner wall surface may form a part of the recess. The inner wall surface may be inclined with respect to a direction from the first body region toward the rear end surface. This makes it possible to further shorten the length of the part of the cable that protrudes from the outer surface to the outside of the turning tool when the shape of the end of the cable is linear, and to increase the distance between the tool tip and the cable.

[0017] (7) The turning tool according to (6) above may further include a housing. The housing may support the terminal. The second body region may include an inclined surface. The inclined surface may be continuous with each of the outer surface and the inner wall surface. The inclined surface and the inner wall surface may form a recess. The inclined surface may be inclined with respect to the outer surface along a direction perpendicular to the outer surface. The housing may be provided on the inclined surface. This allows the length of the portion of the cable disposed within the recess to be increased.

[0018] [Details of the embodiment] Hereinafter, an embodiment of the present disclosure (hereinafter also referred to as the present embodiment) will be described in detail with reference to the drawings. Note that in the following drawings, the same or corresponding parts are designated by the same reference numerals, and the description thereof will not be repeated.

[0019] (First embodiment) FIG. 1 is a first perspective schematic diagram showing a configuration of a turning tool 100 according to a first embodiment. As shown in FIG. 1, the turning tool 100 mainly includes a main body 5 and a connector 39. The turning tool 100 holds a cutting tip 90 and a sole plate 94. The turning tool 100 turns a rotating workpiece (not shown) by bringing the cutting tip 90 into contact with the workpiece. The turning tool 100 is a part of a cutting tool. The turning tool 100, the cutting tip 90, and the sole plate 94 constitute the cutting tool. The turning tool 100 is supplied with power from an external power source (not shown) via a cable 9.

[0020] The main body 5 is a portion that supports the cutting tip 90 and the base plate 94. A first recess 81 is provided in the main body 5. The connector 39 is disposed in the first recess 81. The connector 39 is a portion to which a cable 9 is connected. The cable 9 is electrically connected to an external power source (not shown).

[0021] FIG. 2 is a second perspective schematic diagram showing the configuration of the turning tool 100 according to the first embodiment. As shown in FIG. 1 and FIG. 2, the body portion 5 has a first body region 10 and a second body region 20. A cutting tip 90 is attached to the first body region 10. The second body region 20 is continuous with the first body region 10. The second body region 20 is held, for example, by a machine tool (not shown). In other words, the second body region 20 is a shank.

[0022] As shown in FIG. 1 and FIG. 2, the first body region 10 has a seating surface 15, a first surface 11, a second surface 12, a third surface 13, a fourth surface 14, and a fifth surface 35. The seating surface 15 is a surface that supports the cutting tip 90. The seating surface 15 has a first seating surface portion 16 and a second seating surface portion 17. The first seating surface portion 16 is a surface on which the sole plate 94 is placed. The second seating surface portion 17 is continuous with the first seating surface portion 16. The second seating surface portion 17 may be substantially perpendicular to the first seating surface portion 16. The second seating surface portion 17 is a surface that contacts each of the cutting tip 90 and the sole plate 94.

[0023] 1 and 2, the first surface 11 is continuous with each of the first and second seating surfaces 16 and 17. The second surface 12 is continuous with each of the first surface 11, the first and second seating surfaces 16 and 17. The first surface 11, the second surface 12 and the first seating surface 16 form a corner 18. The corner 18 is at the front end of the body portion 5 of the turning tool 100. At the corner 18, a cutting tip 90 is disposed.

[0024] The third surface 13 is continuous with each of the first surface 11, the second surface 12, and the second seating surface portion 17. The fourth surface 14 is continuous with each of the first surface 11 and the second surface 12. The fourth surface 14 is opposite the third surface 13. The fifth surface 35 is continuous with each of the second surface 12 and the third surface 13. The fifth surface 35 is opposite the first surface 11.

[0025] As shown in FIG. 2, the turning tool 100 has a fixing portion 6 and a fastening screw 7. The fixing portion 6 is provided on the third surface 13. The fixing portion 6 fixes the cutting tip 90 and the lining plate 94. Specifically, the cutting tip 90 and the lining plate 94 are sandwiched between the fixing portion 6 and the first body region 10, thereby fixing the cutting tip 90 and the lining plate 94. The fastening screw 7 fastens the fixing portion 6 and the first body region 10 together.

[0026] As shown in FIG. 1 and FIG. 2, the second main body region 20 has, for example, a rod-shaped portion 8, a first lid 1, a second lid 2, a third lid 3, and a fourth lid 4. The rod-shaped portion 8 is connected to the first main body region 10. The first lid 1 is attached to the rod-shaped portion 8. The second lid 2 is attached to the rod-shaped portion 8. The second lid 2 has, for example, a flat plate shape. The third lid 3 is attached to the rod-shaped portion 8. The third lid 3 has, for example, a flat plate shape. The fourth lid 4 is attached to the rod-shaped portion 8. The fourth lid 4 has, for example, a flat plate shape.

[0027] 1 and 2, the second body region 20 has a rear end surface 21 and an outer surface 22. The rear end surface 21 is opposite the first body region 10. From another perspective, in the turning tool 100, the rear end surface 21 is opposite the corner 18. The direction from the first body region 10 toward the rear end surface 21 is defined as a longitudinal direction 110. The rear end surface 21 extends along a plane perpendicular to the longitudinal direction 110. The shape of the rear end surface 21 is, for example, a quadrangle.

[0028] The outer surface 22 is continuous with the rear end surface 21. The outer surface 22 extends along the longitudinal direction 110. The outer surface 22 is annular. A first recess 81 is provided in the outer surface 22. The outer surface 22 has a first side surface portion 31, a second side surface portion 32, a third side surface portion 33, and a fourth side surface portion 34.

[0029] The third side portion 33 is opposite the first side portion 31. The direction from the third side portion 33 to the first side portion 31 is defined as a first direction 101. The first direction 101 is perpendicular to the longitudinal direction 110. The first direction 101 is the same as the feed direction of the turning tool 100 when, for example, externally turning a workpiece from its end face. The fourth side portion 34 is opposite the second side portion 32. The direction from the second side portion 32 to the fourth side portion 34 is defined as a second direction 102. The second direction 102 is perpendicular to both the first direction 101 and the longitudinal direction 110.

[0030] The first side portion 31 is formed by the rod-shaped portion 8, the first lid 1, and the second lid 2. The first side portion 31 is planar. The first side portion 31 faces a first direction 101. A main clearance surface 91 of the cutting tip 90 is located in the first direction 101 relative to the first side portion 31. A first recess 81 is provided in the first side portion 31. The first recess 81 opens in the first direction 101.

[0031] The second side surface portion 32 is formed by the rod-shaped portion 8 and the third lid 3. It may be substantially perpendicular to the first side surface portion 31. The second side surface portion 32 is continuous with the fourth surface 14. The second side surface portion 32 and the fourth surface 14 may be substantially on the same plane. The second side surface portion 32 is planar.

[0032] The third side surface portion 33 is formed by the rod-shaped portion 8 and the fourth lid 4. The third side surface portion 33 may be substantially parallel to the first side surface portion 31. The third side surface portion 33 is continuous with the fifth surface 35. The third side surface portion 33 and the fifth surface 35 may be substantially on the same plane. The third side surface portion 33 is planar.

[0033] The fourth side surface portion 34 is formed by the rod-shaped portion 8. The fourth side surface portion 34 is planar. The fourth side surface portion 34 may be substantially parallel to the second side surface portion 32.

[0034] Fig. 3 is a first perspective schematic diagram showing the configuration of the turning tool 100 with the lid removed. Fig. 4 is a second perspective schematic diagram showing the configuration of the turning tool 100 with the lid removed. As shown in Figs. 3 and 4, the rod-shaped portion 8 has a first surface portion 36, a second surface portion 37, and a third surface portion 38.

[0035] The first surface portion 36 forms a part of the first side surface portion 31 (see FIG. 1). The second recess 82 and the fifth recess 85 are each provided in the first surface portion 36. In the rod-shaped portion 8, the first surface portion 36 is a surface corresponding to the main flank surface 91 of the cutting tip 90. Within the outer surface 22 (see FIG. 1), the first side surface portion 31 (see FIG. 1) is a surface corresponding to the main flank surface 91 of the cutting tip 90. The main flank surface 91 is a flank surface continuing to the main cutting edge of the cutting tip 90. The main cutting edge is a cutting edge that comes into contact with the workpiece.

[0036] The second lid 2 (see FIG. 1) is attached to the rod-shaped portion 8 so as to cover the second recess 82. The first lid 1 (see FIG. 1) is attached to the rod-shaped portion 8 so as to cover, for example, the fifth recess 85.

[0037] The second surface portion 37 forms a part of the second side surface portion 32 (see FIG. 1). A third recess 83 is provided in the second surface portion 37. The third lid 3 (see FIG. 1) is attached to the rod-shaped portion 8 so as to cover the third recess 83. The third surface portion 38 forms a part of the third side surface portion 33 (see FIG. 2). A fourth recess 84 is provided in the third surface portion 38. The fourth lid 4 (see FIG. 2) is attached to the rod-shaped portion 8 so as to cover the fourth recess 84. The rod-shaped portion 8 forms each of the rear end surface 21 and the fourth side surface portion 34.

[0038] 3, the turning tool 100 has, for example, a first sensor 61, a first substrate 71, a second substrate 72, a first wiring 76, and a second wiring 77. The first sensor 61 is attached to the main body 5. Specifically, the first sensor 61 is attached to, for example, the rod-shaped portion 8. The first sensor 61 is disposed in the third recess 83.

[0039] In the longitudinal direction 110, the first sensor 61 is provided between the seat surface 15 (see FIG. 4) and the first recess 81. In the longitudinal direction 110, the first recess 81 is provided between the first sensor 61 and the rear end face 21. The first sensor 61 is a sensor that detects a physical quantity of the main body portion 5. Specifically, the first sensor 61 is, for example, a strain sensor. The first sensor 61 measures the strain of the main body portion 5 in the second direction 102.

[0040] The first substrate 71 is disposed in the third recess 83. The first substrate 71 is attached to the rod-shaped portion 8. The first wiring 76 electrically connects the first sensor 61 and the first substrate 71. The second substrate 72 is disposed in the second recess 82. The second substrate 72 is attached to the rod-shaped portion 8.

[0041] As shown in FIG. 4, the turning tool 100 has a second sensor 62, a third substrate 73, and a third wiring 78. The second sensor 62 is disposed in a fourth recess 84. The second sensor 62 is attached to the main body 5. Specifically, the second sensor 62 is attached to, for example, the rod-shaped portion 8. In the longitudinal direction 110, the second sensor 62 is provided between the seat surface 15 and the first recess 81. The second sensor 62 is a sensor that detects a physical quantity of the main body 5. Specifically, the second sensor 62 is, for example, a strain sensor. The second sensor 62 measures the strain of the main body 5 in the first direction 101.

[0042] The third substrate 73 is disposed in the fourth recess 84. The third substrate 73 is attached to the rod-shaped portion 8. The fourth wiring 79 electrically connects the second sensor 62 and the third substrate 73 to each other.

[0043] As shown in Fig. 3, the turning tool 100 has an AD converter 66 and a wireless communication unit 67. The AD converter 66 is provided on a circuit pattern (not shown) of the second substrate 72. The AD converter 66 converts analog signals received from the first sensor 61 and the second sensor 62 into digital signals. The wireless communication unit 67 is provided on the circuit pattern of the second substrate 72. The wireless communication unit 67 transmits the signals received from the first sensor 61 and the second sensor 62 to the outside of the turning tool 100. The wireless communication unit 67 electrically connects the AD converter 66 and the wireless communication unit 67 to the second substrate 72.

[0044] FIG. 5 is a side schematic diagram showing the configuration of the turning tool 100. In FIG. 5, the configuration of the turning tool 100 viewed perpendicularly to the first side portion 31 is shown. For convenience of explanation, the second cover 2 is not shown in FIG. 5. FIG. 6 is a cross-sectional schematic diagram taken along line VI-VI in FIG. 5. The cross section shown in FIG. 6 is perpendicular to the longitudinal direction 110 and intersects with each of the third wiring 78 and the fourth wiring 79. As shown in FIG. 6, the rod-shaped portion 8 is provided with a first connection passage 68 and a second connection passage 69. The second recess 82 communicates with the third recess 83 via the first connection passage 68. The second recess 82 communicates with the fourth recess 84 via the second connection passage 69.

[0045] The second wiring 77 is disposed in the first connection passage 68. The second wiring 77 electrically connects the first substrate 71 and the second substrate 72. From another perspective, the first sensor 61 (see FIG. 3) is electrically connected to each of the AD converter 66 (see FIG. 3) and the wireless communication unit 67 (see FIG. 3) via the second substrate 72, the second wiring 77, and the first substrate 71. The second wiring 77 is, for example, a flexible cable.

[0046] The third wiring 78 is disposed in the second connection passage 69. The third wiring 78 electrically connects the third substrate 73 and the first substrate 71. From another perspective, the second sensor 62 (see FIG. 4) is electrically connected to each of the AD converter 66 and the wireless communication unit 67 via the fourth wiring 79 (see FIG. 4), the third substrate 73, the third wiring 78, the second substrate 72, the second wiring 77, and the first substrate 71. The third wiring 78 is, for example, a flexible cable.

[0047] Fig. 7 is an enlarged schematic cross-sectional view taken along line VII-VII in Fig. 5. The cross section shown in Fig. 7 is parallel to the longitudinal direction 110 and intersects with the connector 39. As shown in Figs. 5 and 7, the second main body region 20 has a first inner wall surface 47, a first bottom surface 48, and an inner circumferential surface 50.

[0048] The first inner wall surface 47 is continuous with the first side surface portion 31. The first inner wall surface 47 is formed, for example, by the first lid 1. The first inner wall surface 47 is, for example, annular. The first inner wall surface 47 extends along the first direction 101. From another perspective, the first inner wall surface 47 extends along a direction perpendicular to the longitudinal direction 110. The first inner wall surface 47 forms the inner wall of the first recess 81.

[0049] The first bottom surface 48 is continuous with the first inner wall surface 47. The first bottom surface 48 is formed, for example, by the first lid 1. The first bottom surface 48 may be substantially parallel to the first side surface portion 31. The first bottom surface 48 forms the bottom surface of the first recess 81. The first inner wall surface 47 and the first bottom surface 48 form the first recess 81. The ridge line between the first side surface portion 31 and the first inner wall surface 47 forms an outer edge 89 of the first recess 81.

[0050] The inner peripheral surface 50 is continuous with the first bottom surface 48. The inner peripheral surface 50 penetrates the first lid 1. The inner peripheral surface 50 is annular. The central axis O of the inner peripheral surface 50 extends, for example, along a direction perpendicular to the longitudinal direction 110. Specifically, the central axis O extends, for example, along the first direction 101. The central axis O is substantially perpendicular to the first bottom surface 48. The central axis O is surrounded by the first inner wall surface 47 over the entire circumference.

[0051] 7, the first cover 1 has a plate portion 51 and a protrusion 52. The plate portion 51 forms a part of the first side surface portion 31. The protrusion 52 is provided in the opposite direction to the first direction 101 with respect to the plate portion 51. The protrusion 52 protrudes in the opposite direction to the first direction 101. The first recess 81 is formed by, for example, the plate portion 51 and the protrusion 52.

[0052] The connector 39 is attached to the first lid 1, for example. The entire circumference of the connector 39 is surrounded by the inner peripheral surface 50. A part of the connector 39 is located within the first recess 81. In the first direction 101, the connector 39 is provided between the first side surface portion 31 and the third side surface portion 33. The entire circumference of the connector 39 is surrounded by the inner wall (first inner wall surface 47) of the first recess 81. From another perspective, when viewed perpendicularly to the first side surface portion 31, the entire circumference of the connector 39 is surrounded by the outer edge 89 of the first recess 81.

[0053] The connector 39 is spaced from the first inner wall surface 47. The connector 39 penetrates, for example, the first lid 1. A part of the connector 39 is disposed, for example, in the internal space 86. The connector 39 is a portion to which the cable 9 is connected. The connector 39 is a portion that is electrically connected to an external power source (not shown) via the cable 9.

[0054] 5 and 7, the connector 39 has a housing 53, a first terminal 56, a second terminal 57, a third terminal 58, and a fourth terminal (not shown). The housing 53 is attached to the first lid 1, for example. The housing 53 is provided on the first bottom surface 48, for example. Specifically, the housing 53 is supported by the first bottom surface 48 and an inner circumferential surface 50.

[0055] The housing 53 supports the cable 9 connected to the connector 39. The housing 53 is, for example, fitted with the cable 9. The housing 53 is formed, for example, from an electrically insulating material.

[0056] The first terminal 56 extends, for example, from the housing 53 in a first direction 101. From another perspective, the direction in which the first terminal 56 extends is perpendicular to the longitudinal direction 110. The first terminal 56 is supported by the housing 53. The first terminal 56 is exposed to the outside of the turning tool 100. The entire first terminal 56 is disposed within the first recess 81. From another perspective, the first terminal 56 is provided between the first side portion 31 and the first bottom surface 48 in the first direction 101. The entire periphery of the first terminal 56 is surrounded by the inner wall (first inner wall surface 47) of the first recess 81. The first terminal 56 is provided between the first body region 10 and the rear end surface 21. From another perspective, the first terminal 56 is provided between the boundary surface between the first body region 10 and the second body region 20 and the rear end surface 21.

[0057] The first terminal 56 is a conductor. The first terminal 56 is shaped, for example, like a rod. A cable 9 is connected to the first terminal 56. A portion of the cable 9 close to the connector 39 extends in a first direction 101. The length in the first direction 101 of the portion of the cable 9 protruding from the first side portion 31 is defined as a protrusion amount D. From another perspective, the protrusion amount D is the length of the portion of the cable 9 protruding from the outer surface 22 to the outside of the turning tool 100.

[0058] The second terminal 57 is opposite to the first terminal 56. The second terminal 57 is electrically connected to the first terminal 56. The second terminal 57 is provided in a direction opposite to the first direction 101 with respect to the first lid 1. The second terminal 57 extends, for example, from the housing 53 along a direction opposite to the first direction 101. The second terminal 57 is supported by the housing 53. The second terminal 57 is a conductor. The shape of the second terminal 57 is, for example, a rod shape.

[0059] The third terminal 58 has substantially the same configuration as the first terminal 56. The third terminal 58 is electrically insulated from each of the first terminal 56 and the second terminal 57 by the housing 53. The fourth terminal (not shown) has substantially the same configuration as the second terminal 57. The fourth terminal is electrically connected to the third terminal 58.

[0060] As shown in Fig. 3 and Fig. 7, the rod-shaped portion 8 has a second inner wall surface 24, a support surface 26, a third inner wall surface 25, and a second bottom surface 23. The second inner wall surface 24 is continuous with the first surface portion 36. The second inner wall surface 24 is annular. The second inner wall surface 24 may be substantially parallel to the first direction 101. The support surface 26 is continuous with the second inner wall surface 24. The support surface 26 may be substantially parallel to the first side surface portion 31.

[0061] The third inner wall surface 25 is continuous with the support surface 26. The third inner wall surface 25 is annular. The third inner wall surface 25 may be substantially parallel to the first direction 101. When viewed perpendicularly to the first surface portion 36, the third inner wall surface 25 may be surrounded by the second inner wall surface 24.

[0062] The second bottom surface 23 is continuous with the third inner wall surface 25. The second bottom surface 23 may be substantially parallel to the first surface portion 36. The second inner wall surface 24, the support surface 26, the third inner wall surface 25, and the second bottom surface 23 form a fifth recess 85.

[0063] As shown in FIG. 7, the first lid 1 is attached to the rod-shaped portion 8 so as to cover the fifth recess 85. The first lid 1 is provided on the support surface 26. The first lid 1 and the rod-shaped portion 8 form an internal space 86. The second terminal 57 is disposed between the first lid 1 and the second bottom surface 23. In other words, the second terminal 57 is disposed in the internal space 86.

[0064] 3 and 7, the turning tool 100 has, for example, a fifth terminal 59. The fifth terminal 59 is electrically connected to the second board 72. Specifically, the fifth terminal 59 is electrically connected to the second board 72 by a fifth wiring (not shown) disposed in the rod-shaped portion 8. The third inner wall surface 25 surrounds the fifth terminal 59.

[0065] As shown in Fig. 7, the turning tool 100 has a connection wiring 96. The connection wiring 96 electrically connects the second terminal 57 and the fifth terminal 59. From another perspective, the first terminal 56 is electrically connected to each of the first sensor 61 (see Fig. 3), the second sensor 62 (see Fig. 4), the AD converter 66, and the wireless communication unit 67 via the second terminal 57, the connection wiring 96, the fifth terminal 59, and the second substrate 72. Similarly, the fourth terminal (not shown) is electrically connected to the fifth terminal 59.

[0066] Next, the operation of the turning tool 100 will be described. When turning a workpiece, the turning tool 100 is held by a machine tool. With the main cutting edge of the cutting tip 90 pressed against the rotating workpiece, the turning tool 100 is moved in the feed direction, thereby turning the workpiece.

[0067] 7, the first terminal 56 is electrically connected to an external power source (not shown) via a cable 9. Therefore, power is supplied from the external power source to each of the first sensor 61, the second sensor 62, the AD converter 66, and the wireless communication unit 67. This allows each of the first sensor 61 and the second sensor 62 to detect distortion of the main body unit 5.

[0068] Each of the first sensor 61 and the second sensor 62 outputs an analog signal including the detected information to the AD converter 66. The AD converter 66 converts the input analog signal into a digital signal, and outputs the converted digital signal to the wireless communication unit 67. The wireless communication unit 67 transmits the digital signal input from the AD converter 66 to the outside of the turning tool 100. Specifically, the wireless communication unit 67 transmits a signal to a receiving unit (not shown) provided outside the turning tool 100. In this way, the wireless communication unit 67 transmits the signals received from each of the first sensor 61 and the second sensor 62 to the outside of the turning tool 100.

[0069] Next, the effects of the turning tool 100 according to the first embodiment will be described. According to the turning tool 100 according to the first embodiment, the extension direction of the first terminal 56 is perpendicular to the longitudinal direction 110. At least a portion of the first terminal 56 is disposed within the first recess 81. Therefore, when the cable 9 is connected to the first terminal 56, a portion of the cable 9 is disposed within the first recess 81. Therefore, even when the extension direction of the first terminal 56 is perpendicular to the longitudinal direction 110, the length of the portion of the cable 9 that protrudes from the outer surface 22 to the outside of the turning tool 100 (protrusion amount D, see FIG. 7 ) can be shortened.

[0070] According to the turning tool 100 of the first embodiment, by shortening the protrusion amount D, it is possible to prevent the cable 9 from coming into contact with the workpiece, the chuck of the machine tool spindle holding the workpiece, chips, and cutting oil when turning the workpiece.

[0071] When the turning tool 100 is attached to the machine tool, the cutting tip 90 and a part of the turning tool 100 protrude from the machine tool. As the length of the part of the turning tool 100 protruding from the machine tool increases, the vibration of the cutting tip 90 and the turning tool 100 increases when turning a workpiece. Therefore, it is required to shorten the length in the longitudinal direction 110 of the part of the turning tool 100 protruding from the machine tool by pressing the rear end face 21 of the turning tool 100 against the machine tool. However, when the cable 9 is connected to the turning tool 100, the cable 9 may protrude from the rear end face 21 to the outside of the turning tool 100. In this case, the cable 9 may come into contact with the machine tool. Therefore, the rear end face 21 cannot be pressed against the machine tool.

[0072] According to the turning tool 100 according to the first embodiment, a first recess 81 is provided on the outer surface 22 of the second body region 20. At least a part of the first terminal 56 is disposed in the first recess 81. The entire circumference of the first terminal 56 is surrounded by the inner wall of the first recess 81. Therefore, when the cable 9 is connected to the connector 39, the cable 9 protrudes from the outer surface 22 to the outside of the turning tool 100. This allows the cable 9 to be connected to the turning tool 100 without protruding from the rear end surface 21 to the outside of the turning tool 100. Therefore, the rear end surface 21 can be pressed against the machine tool.

[0073] According to the turning tool 100 according to the first embodiment, the rear end surface 21 can be pressed against a machine tool. Therefore, when the turning tool 100 is attached to a machine tool, the length in the longitudinal direction 110 of the part of the turning tool 100 that protrudes from the machine tool can be shortened. This can reduce vibrations of the cutting tip 90 and the turning tool 100 when turning a workpiece.

[0074] According to the turning tool 100 according to the first embodiment, the turning tool 100 and the cutting tip 90 can be easily positioned in the longitudinal direction 110 by pressing the rear end face 21 against a machine tool.

[0075] According to the turning tool 100 according to the first embodiment, the first terminal 56 is entirely disposed within the first recess 81. Therefore, when the cable 9 is connected to the first terminal 56, the length of the portion of the cable 9 disposed within the first recess 81 can be increased. As a result, the protrusion amount D can be further reduced.

[0076] According to the turning tool 100 according to the first embodiment, the second body region 20 has a first inner wall surface 47. The first inner wall surface 47 forms a part of the first recess 81. The first inner wall surface 47 extends along a direction perpendicular to the longitudinal direction 110. Therefore, when the cable 9 is connected to the connector 39, the cable 9 can protrude from the outer surface 22 along a direction perpendicular to the longitudinal direction 110. Therefore, when the shape of the end of the cable 9 is L-shaped, the protrusion amount D can be further shortened.

[0077] According to the turning tool 100 according to the first embodiment, the second body region 20 has a first bottom surface 48. The first bottom surface 48 and the first inner wall surface 47 form a first recess 81. The connector 39 is provided on the first bottom surface 48. Therefore, the connector 39 is provided on the bottom surface of the first recess 81. This makes it possible to increase the length of the portion of the cable 9 that is disposed within the first recess 81. As a result, the protrusion amount D can be further shortened.

[0078] Second embodiment Next, the configuration of the turning tool 100 according to the second embodiment will be described. The turning tool 100 according to the second embodiment differs from the turning tool 100 according to the first embodiment mainly in that the first inner wall surface 47 forming the first recess 81 is inclined with respect to the longitudinal direction 110, and is substantially the same as the turning tool 100 according to the first embodiment in other respects. Below, the differences from the turning tool 100 according to the first embodiment will be mainly described.

[0079] Fig. 8 is a perspective schematic diagram showing the configuration of a turning tool 100 according to a second embodiment. Fig. 9 is an enlarged schematic diagram showing the configuration of a turning tool 100 according to a second embodiment. Fig. 10 is an enlarged schematic cross-sectional view taken along line XX in Fig. 9. The cross section shown in Fig. 10 corresponds to the cross section shown in Fig. 7.

[0080] 8 to 10, the second main body region 20 has an inclined surface 49. The inclined surface 49 is flat. The inclined surface 49 is continuous with each of the first side surface portion 31 and the first inner wall surface 47.

[0081] The first recess 81 is formed by the inclined surface 49 and the first inner wall surface 47. The inclined surface 49 and the first inner wall surface 47 form the first recess 81. An outer edge 89 of the first recess 81 is formed by the ridgeline of the inclined surface 49, the first inner wall surface 47, and the first side surface portion 31.

[0082] 10, the inclined surface 49 is inclined with respect to the outer side surface 22 along a direction perpendicular to the outer side surface 22. Specifically, the inclined surface 49 is inclined with respect to the first side surface portion 31 along a direction opposite to the first direction 101.

[0083] The first inner wall surface 47 may be substantially perpendicular to the inclined surface 49. From another perspective, the first inner wall surface 47 is inclined with respect to the longitudinal direction 110. Specifically, the first inner wall surface 47 extends along a direction inclined in a first direction 101 with respect to the longitudinal direction 110 (hereinafter also referred to as a third direction 103). The first inner wall surface 47 and the inclined surface 49 form the inner wall of the first recess 81.

[0084] The inner circumferential surface 50 is continuous with the inclined surface 49. A central axis O of the inner circumferential surface 50 extends along the third direction 103. The connector 39 is provided on the inclined surface 49. Specifically, the housing 53 is provided on the inclined surface 49. The housing 53 is supported by the inclined surface 49 and the inner circumferential surface 50.

[0085] The first terminal 56 extends along the third direction 103. In other words, the direction in which the first terminal 56 extends is inclined in the first direction 101 with respect to the longitudinal direction 110. At least a part of the circumference of the first terminal 56 is surrounded by the first inner wall surface 47. In this specification, "at least a part of the circumference of the first terminal 56 is surrounded by a surface" means that 120° or more of the circumference of the first terminal 56 is surrounded by a surface. In the turning tool 100 according to the second embodiment, about 270° of the circumference of the first terminal 56 is surrounded by the first inner wall surface 47. As shown in FIG. 9, when viewed perpendicularly to the first side portion 31, the first terminal 56 is surrounded by the first inner wall surface 47 and the inclined surface 49. A portion of the cable 9 close to the connector 39 extends along the third direction 103.

[0086] In the turning tool 100 according to the second embodiment, the extension direction of the first terminal 56 is inclined in the first direction 101 with respect to the longitudinal direction 110. At least a portion of the first terminal 56 is disposed within the first recess 81. Therefore, when the cable 9 is connected to the first terminal 56, a portion of the cable 9 is disposed within the first recess 81. Therefore, even when the extension direction of the first terminal 56 is inclined with respect to the longitudinal direction 110, the length of the portion of the cable 9 that protrudes from the outer surface 22 to the outside of the turning tool 100 (protrusion amount D, see FIG. 7 ) can be shortened.

[0087] According to the turning tool 100 according to the second embodiment, the first inner wall surface 47 is inclined with respect to the longitudinal direction 110. Therefore, when the cable 9 is connected to the connector 39, the cable 9 can protrude from the outer surface 22 in a direction inclined with respect to the longitudinal direction 110. Therefore, when the shape of the end of the cable 9 is linear, the length of the portion of the cable 9 protruding from the outer surface 22 to the outside of the turning tool 100 can be shortened.

[0088] According to the turning tool 100 according to the second embodiment, the second body region 20 has an inclined surface 49. The inclined surface 49 is continuous with the first inner wall surface 47. The inclined surface 49 and the first inner wall surface 47 form a first recess 81. The connector 39 is provided on the inclined surface 49. This makes it possible to increase the length of the portion of the cable 9 that is disposed in the first recess 81. This makes it possible to further shorten the length of the portion of the cable 9 that protrudes from the outer surface 22 to the outside of the turning tool 100.

[0089] According to the turning tool 100 according to the second embodiment, at least a portion of the entire circumference of the first terminal 56 is surrounded by the first inner wall surface 47. Therefore, at least a portion of the cable 9 connected to the first terminal 56 is surrounded by the first inner wall surface 47. This reduces the area of ​​the surface of the cable 9 exposed to the outside of the turning tool 100, and prevents chips from wrapping around the cable 9.

[0090] Third embodiment Next, the configuration of the turning tool 100 according to the third embodiment will be described. The turning tool 100 according to the third embodiment differs from the turning tool 100 according to the first embodiment mainly in that a first recess 81 is provided in the rod-shaped portion 8, and in other respects is substantially the same as the turning tool 100 according to the first embodiment. Below, the differences from the turning tool 100 according to the first embodiment will be mainly described.

[0091] FIG. 11 is an enlarged cross-sectional schematic diagram showing the configuration of a turning tool 100 according to a third embodiment. As shown in FIG. 11, a first recess 81 may be provided in the rod-shaped portion 8. The rod-shaped portion 8 forms a first inner wall surface 47 and a first bottom surface 48. The connector 39 may be attached to the rod-shaped portion 8. The turning tool 100 may not have the first lid 1. The connection wiring 96 may electrically connect the first terminal 56 and the second substrate 72 (see FIGS. 3 and 5).

[0092] (Fourth embodiment) Next, the configuration of the turning tool 100 according to the fourth embodiment will be described. The turning tool 100 according to the fourth embodiment differs from the turning tool 100 according to the first embodiment mainly in that the first recess 81 is open to a plurality of faces of the outer surface 22, and is substantially the same as the turning tool 100 according to the first embodiment in other respects. Below, the following description will focus on the differences from the turning tool 100 according to the first embodiment.

[0093] Fig. 12 is a perspective schematic view showing the configuration of the turning tool 100 according to the fourth embodiment. Fig. 13 is an enlarged schematic view showing the configuration of the turning tool 100 according to the fourth embodiment. As shown in Figs. 12 and 13, the first recess 81 may be open in each of the second side surface portion 32 and the fourth side surface portion 34. From another perspective, the first recess 81 may be open in each of the second direction 102 and the direction opposite to the second direction 102.

[0094] The second body region 20 has a first side wall surface 41 and a second side wall surface 42. The first side wall surface 41 is formed by the first lid 1. The first side wall surface 41 may be parallel to the rear end surface 21, for example. The second side wall surface 42 faces the first side wall surface 41. The second side wall surface 42 is formed by the first lid 1. The second side wall surface 42 may be parallel to the rear end surface 21. The first side wall surface 41 and the second side wall surface 42 are connected by a first bottom surface 48. The first side wall surface 41 extends in a first direction 101. The second side wall surface 42 extends in the first direction 101.

[0095] The second body region 20 has a first concave surface 43 and a second concave surface 44. The first concave surface 43 is continuous with each of the first side surface portion 31 and the second side surface portion 32. The first concave surface 43 is formed by the rod-shaped portion 8. The first concave surface 43 is concave in the direction opposite to the first direction 101 with respect to the first side surface portion 31.

[0096] The second concave surface 44 is continuous with each of the first side surface portion 31 and the fourth side surface portion 34. The second concave surface 44 is formed by the rod-shaped portion 8. The second concave surface 44 is concave with respect to the first side surface portion 31 in a direction opposite to the first direction 101. The second concave surface 44 is spaced apart from the first concave surface 43. The first side wall surface 41, the second side wall surface 42, the first bottom surface 48, the first concave surface 43, and the second concave surface 44 form a first recess 81.

[0097] The turning tool 100 may have a plurality of connectors 39. Specifically, the turning tool 100 has, for example, two connectors 39. The two connectors 39 are arranged, for example, side by side in the second direction 102. The two connectors 39 are provided between the first side wall surface 41 and the second side wall surface 42. From another perspective, the first terminal 56 is provided between the first side wall surface 41 and the second side wall surface 42. The third terminal 58 is provided between the first side wall surface 41 and the second side wall surface 42. In the turning tool 100 according to the second embodiment, about 180° of the entire circumference of the first terminal 56 is surrounded by the first side wall surface 41 and the second side wall surface 42.

[0098] A different cable 9 is connected to each of the two connectors 39. A part of the cable 9 in the second direction 102 may be disposed outside the first recess 81.

[0099] According to the turning tool 100 according to the fourth embodiment, a plurality of cables 9 can be arranged side by side in the first recess 81. Therefore, compared to the case where one cable 9 is connected to the turning tool 100, by connecting a plurality of cables 9 to the turning tool 100, the current supplied to the turning tool 100 can be increased.

[0100] Furthermore, by being able to connect a plurality of cables 9 to the turning tool 100, a cable 9 for power supply and a cable 9 for communication can be simultaneously connected to the turning tool 100. This makes it possible to transmit some kind of electrical signal to the turning tool 100 while supplying power to the turning tool 100.

[0101] In the above description, the turning tool 100 has a plurality of connectors 39, but the turning tool 100 may have, for example, a wide connector 39. Specifically, the wide connector 39 may be provided in the first recess 81. This allows a wide cable to be connected to the turning tool 100. This makes it possible to increase the current supplied to the turning tool 100, or to transmit some kind of electrical signal to the turning tool 100 while supplying power to the turning tool 100.

[0102] The first side wall surface 41 may be inclined with respect to the rear end surface 21. The first side wall surface 41 may be inclined with respect to the first side surface portion 31. Similarly, the second side wall surface 42 may be inclined with respect to the rear end surface 21. The second side wall surface 42 may be inclined with respect to the first side surface portion 31. The second side wall surface 42 may be inclined with respect to the first side wall surface 41.

[0103] Fifth embodiment Next, the configuration of the turning tool 100 according to the fifth embodiment will be described. The turning tool 100 according to the fifth embodiment differs from the turning tool 100 according to the first embodiment mainly in that the first recess 81 opens at the rear end surface 21, and is substantially the same as the turning tool 100 according to the first embodiment in other respects. Below, the differences from the turning tool 100 according to the first embodiment will be mainly described.

[0104] Fig. 14 is a schematic perspective view showing the configuration of a turning tool 100 according to a fifth embodiment. Fig. 15 is an enlarged schematic cross-sectional view showing the configuration of a turning tool 100 according to a fifth embodiment. The cross section shown in Fig. 15 corresponds to the cross section shown in Fig. 7.

[0105] 14 and 15 , the first recess 81 may be open at the rear end face 21. From another perspective, the first recess 81 may be open in the longitudinal direction 110. The first inner wall surface 47 may be open in the longitudinal direction 110. In the turning tool 100 according to the fifth embodiment, about 270° of the entire circumference of the first terminal 56 is surrounded by the first inner wall surface 47.

[0106] The second body region 20 may have a third concave surface 45. The third concave surface 45 is continuous with each of the first side surface portion 31 and the rear end surface 21. The third concave surface 45 is formed by the rod-shaped portion 8. The third concave surface 45 is concave with respect to the first side surface portion 31 in a direction opposite to the first direction 101. The first inner wall surface 47, the first bottom surface 48, and the third concave surface 45 form a first recess 81.

[0107] 15, the entire cable 9 may be disposed within the first recess 81 in the first direction 101. From another perspective, the cable 9 may be disposed between the first side surface portion 31 and the first bottom surface 48 in the first direction 101. This makes it possible to prevent the cable 9 from protruding from the outer surface 22 to the outside of the turning tool 100.

[0108] When the turret to which the turning tool 100 is attached is large, when the length of the portion of the turning tool 100 protruding from the machine tool is long, or when the tool rest of the machine tool to which the turning tool 100 is attached is C-shaped, there may be a space behind the rear end face 21 of the turning tool 100. According to the turning tool 100 of the fifth embodiment, when there is a space behind the rear end face 21, the cable 9 can be arranged so that the cable 9 extends behind the rear end face 21. This makes it possible to shorten the length of the portion of the cable 9 protruding from the outer surface 22 to the outside of the turning tool 100.

[0109] Sixth embodiment Next, the configuration of the turning tool 100 according to the sixth embodiment will be described. The turning tool 100 according to the sixth embodiment differs from the turning tool 100 according to the second embodiment mainly in that the first recess 81 opens at the rear end surface 21, and is substantially the same as the turning tool 100 according to the second embodiment in other respects. Below, the differences from the turning tool 100 according to the second embodiment will be mainly described.

[0110] Fig. 16 is a schematic perspective view showing the configuration of a turning tool 100 according to a sixth embodiment. Fig. 17 is an enlarged schematic cross-sectional view showing the configuration of a turning tool 100 according to a sixth embodiment. The cross section shown in Fig. 17 corresponds to the cross section shown in Fig. 10.

[0111] 16 and 17 , the first recess 81 may be open at the rear end surface 21. From another perspective, the first recess 81 may be open in the longitudinal direction 110. The first inner wall surface 47 may be open in the longitudinal direction 110.

[0112] The second body region 20 may have a third concave surface 45. The third concave surface 45 is continuous with each of the first side surface portion 31 and the rear end surface 21. The third concave surface 45 is formed by the rod-shaped portion 8. The third concave surface 45 is concave with respect to the first side surface portion 31 in a direction opposite to the first direction 101. The first inner wall surface 47, the inclined surface 49, and the third concave surface 45 form a first recess 81.

[0113] In the first direction 101, the entire cable 9 may be disposed within the first recess 81. From another perspective, in the first direction 101, the cable 9 may be disposed between the first side surface portion 31 and the first bottom surface 48. This makes it possible to prevent the cable 9 from protruding from the outer surface 22 to the outside of the turning tool 100.

[0114] According to the turning tool 100 of the sixth embodiment, similarly to the turning tool 100 of the fifth embodiment, when there is a space behind the rear end face 21, the cable 9 can be arranged so that the cable 9 extends behind the rear end face 21. This makes it possible to shorten the length of the portion of the cable 9 that protrudes from the outer surface 22 to the outside of the turning tool 100.

[0115] Although the configuration in which the entire first terminal 56 is disposed within the first recess 81 has been described above, the configuration of the turning tool 100 according to the present disclosure is not limited to the above configuration. Specifically, a part of the first terminal 56 may extend from the first recess 81 to the outside of the turning tool 100.

[0116] In the turning tools 100 according to the second and fourth to sixth embodiments, the first recess 81 is provided in the first lid 1, but the first recess 81 may be provided in the rod-shaped portion 8. In the first, third, fourth, and fifth embodiments, the first bottom surface 48 is parallel to the first side surface portion 31, but the first bottom surface 48 may be inclined with respect to the first side surface portion 31.

[0117] The embodiments disclosed herein are illustrative in all respects and should not be considered as limiting. The scope of the present invention is defined by the claims, not the above description, and is intended to include the meaning equivalent to the claims and all modifications within the scope. [Explanation of symbols]

[0118] 1 1st lid, 2 2nd lid, 3 3rd lid, 4 4th lid, 5 main body, 6 fixed part, 7 fastening screw, 8 rod-shaped part, 9 cable, 10 1st main body area, 11 1st surface, 12 2nd surface, 13 3rd surface, 14 4th surface, 15 seat surface, 16 1st seat surface section, 17 2nd seat surface section, 18 corner, 20 2nd main body area, 21 Rear end surface, 22 Outer surface, 23 Second bottom surface, 24 Second inner wall surface, 25 Third inner wall surface, 26 Support surface, 31 First side surface, 32 Second side surface, 33 Third side surface, 34 Fourth side surface, 35 Fifth surface, 36 First surface, 37 Second surface, 38 Third surface, 39 Connector, 41 First side wall, 42 Second side wall, 43 1st concave surface, 44 2nd concave surface, 45 third concave surface, 47 first inner wall surface, 48 first bottom surface, 49 inclined surface, 50 inner peripheral surface, 51 plate portion, 52 convex portion, 53 housing, 56 first terminal, 57 second terminal, 58 third terminal, 59 fifth terminal, 61 first sensor, 62 second sensor, 66 AD converter, 67 wireless communication unit, 68 first connection passage, 69 second connection passage, 71 first board, 72 second board, 73 third board, 76 first wiring, 77 second wiring, 78 third wiring, 79 fourth wiring, 81 first recess, 82 second recess, 83 third recess, 84 fourth recess, 85 fifth recess, 86 internal space, 89 outer edge, 90 cutting tip, 91 main relief surface, 94 underlay plate, 96 connection wiring, 100 turning tool, 101 first direction, 102 second direction, 103 Third direction, 110 longitudinal direction, D protrusion, O central axis.

Claims

1. A turning tool that holds a cutting tip and is powered by an external power source via a cable, a main body portion including a first main body region to which the cutting tip is attached and a second main body region connected to the first main body region; a sensor attached to the main body; a terminal electrically connected to the sensor and to which the cable is connected; the second body region has a rear end surface opposite the first body region and an outer surface connected to the rear end surface and having a recess; the extending direction of the terminal is inclined with respect to a longitudinal direction from the first body region toward the rear end surface or is perpendicular to the longitudinal direction; At least a portion of the terminal is disposed within the recess; At least a portion of the entire periphery of the terminal is surrounded by the inner wall of the recess, the outer surface has a first side surface portion in which the recess is provided and a third side surface portion opposite the first side surface portion, When a direction from the third side surface portion toward the first side surface portion is defined as a first direction, a main flank surface of the cutting tip is located in the first direction relative to the first side surface portion; The recess is open in the first direction.

2. The turning tool of claim 1 , wherein the terminal is disposed entirely within the recess.

3. 3. The turning tool according to claim 1, wherein the terminal is surrounded by an inner wall of the recess when viewed perpendicularly to the outer surface on which the recess is provided.

4. the second body region has an inner wall surface that is continuous with the outer surface and forms a part of the recess; The turning tool according to claim 1 or 2, wherein the inner wall surface extends in a direction perpendicular to the longitudinal direction.

5. a housing for supporting the terminals; the second body region has a bottom surface that is continuous with the inner wall surface, the inner wall surface and the bottom surface form the recess, The turning tool according to claim 4 , wherein the housing is provided on the bottom surface.

6. the second body region has an inner wall surface that is continuous with the outer surface and forms a part of the recess; The turning tool according to claim 1 or 2, wherein the inner wall surface is inclined with respect to the longitudinal direction.

7. a housing for supporting the terminals; the second body region has an inclined surface connected to each of the outer side surface and the inner wall surface, the inclined surface and the inner wall surface form the recess, the inclined surface is inclined with respect to the outer surface along a direction perpendicular to the outer surface, The turning tool according to claim 6 , wherein the housing is mounted on the inclined surface.

Images