JP2005131774A - Rotary drill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary drill which can simply and quickly carry out the mounting and dismounting of cutting edge portions and can improve the productivity in machining a glass plate, etc. <P>SOLUTION: The rotary drill 1 for drilling the glass plate comprises a rod shape drill body 2 and a drill holding body 3 for holding the drill body 2. The drill holding body 3 comprises a connecting portion 4 for releasably connecting the portion to be connected 54 of the drill body 2 in the axial direction X by a magnetic force, an engaging portion 5 for engaging an portion to be engaged 56 in the rotary direction R by being engaged with the portion to be engaged 56, and a portion 6 to be mounted to a rotary apparatus composed of a hole opening (drilling) apparatus, etc. for turning the drill holding body 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rotary drill used for processing such as drilling (drilling) of glass, silicon, ceramics and the like.

JP 2003-225818 A JP 2002-120219 A

  As this type of rotary drill, for example, a blade portion to which diamond abrasive grains or the like are fixed and a cylindrical shank portion in which the blade portion is disposed at one end portion are integrally formed. A rotating drill (core drill) is proposed in Patent Document 1, and such a rotating drill is a rotating device that rotates the rotating drill, for example, a drilling device as a rotating device as proposed in Patent Document 2. The other end of the shank is firmly attached by screwing or the like. Such a rotary drill is removed from the rotating device due to wear of the blade portion or the like, and replaced with another new rotary drill. Moreover, also when using the rotary drill which has blade parts, such as a different shape and material, a rotary drill is replaced | exchanged.

  By the way, in such a rotary drill, since the rotary drill is integrally formed, when exchanging the blade portion of the rotary drill used in the rotary device including a drilling device or the like, there is no positional deviation or the like. As a result, the entire rotary drill that is firmly attached to the rotating device must be removed, while a new rotating drill is firmly attached to the rotating device, so that it takes a lot of time to attach and detach the rotary drill. Thus, it is difficult to improve the productivity of processing such as a glass plate.

  The present invention has been made in view of the above-mentioned points, and an object of the present invention is to be able to easily and quickly attach and detach the blade portion and improve the productivity of processing of a glass plate or the like. It is to provide a rotary drill.

  A rotary drill according to a first aspect of the present invention includes a drill main body and a drill holding body that holds the drill main body. The drill main body includes a blade portion disposed at one end, and the other. A connected portion that is disposed at the end of the shaft and is releasably connected to the drill holder in the axial direction, and a locked portion that is disposed on the peripheral surface at the other end. The drill holder includes a connecting portion that releasably connects the connected portion based on magnetic force in the axial direction, and a locking portion that contacts the locked portion and locks the locked portion in the rotational direction. The drill body is detachably held by connecting the connected portion to the connecting portion and locking the locked portion to the locking portion.

  According to the rotary drill of the first aspect, since it has the above-described configuration, the magnetic force between the connecting portion of the drill holding body and the connected portion of the drill main body that are attached to the rotating device by screwing or the like. The drill body having the blade portion can be easily and quickly removed by releasing the connection based on the drill, while the connected portion of the drill body is connected to the drill holder based on the magnetic force. Can be easily and quickly mounted, and thus the productivity of processing a glass plate or the like can be improved.

  In the rotary drill of the second aspect of the present invention, in the rotary drill of the first aspect, one of the connecting part and the connected part includes a permanent magnet, and the connecting part and the connected part are based on the magnetic force of the permanent magnet. It is connected with the other of the parts.

  In the rotary drill of the third aspect of the present invention, in the rotary drill of the second aspect, the other of the connecting part and the connected part includes an iron member that is attracted to the permanent magnet.

  In the rotary drill according to the fourth aspect of the present invention, in the rotary drill according to any one of the first to third aspects, the connecting portion includes a protruding portion protruding toward the drill body, and the connected portion Has a recess or a hole into which the protrusion is inserted.

  In the rotary drill of the fifth aspect of the present invention, in the rotary drill of the fourth aspect, the connecting portion includes an annular permanent magnet that generates a magnetic force that attracts the connected portion, and the connected portion is a permanent magnet. A ring-shaped iron member that is attracted to the permanent magnet based on the magnetic force of the magnet, and a protrusion is arranged in the space defined on the inner peripheral surface of each of the permanent magnet and the iron member. Yes.

  In the rotary drill of the sixth aspect of the present invention, in the rotary drill of the fifth aspect, the annular surface on the connecting portion side of the iron member comes into contact with the annular surface on the connected portion side of the permanent magnet. .

  In the rotary drill according to the seventh aspect of the present invention, in the rotary drill according to any one of the first to sixth aspects, the locked portion rotates at a portion of the locked portion that is farthest from the rotation axis. It has at least one abutting surface that abuts the locking portion in a plane parallel to the extending direction of the line connecting the two points located on the locus and the axial direction. In order to apply a rotational force based on the rotation to the drill body, at least one abutment surface that abuts against the abutment surface of the locked portion is provided in the plane.

  In the rotary drill according to the eighth aspect of the present invention, in the rotary drill according to the seventh aspect, the locked portion is a pair of abutting surfaces facing each other with the rotation axis in the direction orthogonal to the axial direction. The locking portion includes a pair of contact surfaces that contact the pair of contact surfaces of the locked portion.

  In the rotary drill of the ninth aspect of the present invention, in the rotary drill of the seventh or eighth aspect, each contact surface of the locking portion and the locked portion is a flat surface or a curved surface.

  In the rotary drill according to the tenth aspect of the present invention, in the rotary drill according to any one of the first to sixth aspects, the locked portion is at least one notch disposed at the other end of the drill body. And the locking portion is arranged in the notch portion and defines the notch portion so that a rotational force based on the rotation of the drill holder can be applied to the drill body. An abutting member that abuts on the prescribed surface of the main body is provided.

  In the rotary drill of the eleventh aspect of the present invention, in the rotary drill of the tenth aspect, the locked portion is disposed at the other end of the drill body and the notch in which the abutting member is disposed. The flange part in which the part is formed is comprised.

  In the rotary drill of the twelfth aspect of the present invention, in the rotary drill of the first aspect, at least one of the connecting part and the connected part is made of magnetic steel that generates a magnetic force that attracts the other of the connecting part and the connected part. .

  In the rotary drill according to the thirteenth aspect of the present invention, in the rotary drill according to any one of the first to twelfth aspects, the blade portion includes diamond abrasive grains.

  In the rotating drill according to the fourteenth aspect of the present invention, in the rotating drill according to any one of the first to thirteenth aspects, the blade portion is configured for opening a glass plate.

  The drill body of the present invention is used for the rotary drill according to any one of the first to fourteenth aspects, and the drill holder according to the present invention is used for the rotary drill according to any one of the first to fourteenth aspects. Used.

  ADVANTAGE OF THE INVENTION According to this invention, the rotation drill which can attach and detach a blade part easily and rapidly and can improve productivity of processing of a glass plate etc. can be provided.

  Next, examples of embodiments of the present invention will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

  1 to 6, a rotating drill 1 for drilling a glass plate in this example includes a rod-shaped drill body 2 and a drill holder 3 that holds the drill body 2.

  The drill holder 3 is locked in the rotational direction R by abutting the connecting portion 4 that releasably connects the connected portion 54 of the drill body 2 with respect to the axial direction X based on the magnetic force, and the locked portion 56. A locking portion 5 that locks the portion 56 and a mounted portion 6 that is attached to a rotating device (not shown) such as a drilling device that rotates the drill holder 3 are provided.

  The connecting portion 4 includes a substantially cylindrical main body 11 formed with a pair of notches 9 and 10 facing each other in a direction Y orthogonal to the axial direction X, and an end face 12 of the main body 11 on the drill main body 2 side. Projecting in the axial direction X toward the drill body 2 and integrally connected to the main body 11, and a magnetic force that is fixed to the end surface 12 and attracts the connected portion 54 in the axial direction X. And the resulting annular permanent magnet 14. In the notches 9 and 10, contact members 21 and 22 of the locking part 5 are arranged, respectively.

  The main body 11 is made of iron in this example, and the contact members 21 and 22 are fixed by screws 80 or the like.

  The substantially cylindrical protrusion 13 is inserted into the hole 64 of the drill body 2 and is slidably contacted with the inner peripheral surface of the drill body 2 that defines the hole 64 at the outer peripheral surface 15 of the protrusion 13. It has become.

  The permanent magnet 14 includes a pair of annular surfaces 16 and 17 facing each other in the axial direction X, and an outer peripheral surface 18 and an inner peripheral surface 19 connected to the annular surfaces 16 and 17, respectively. In the space defined by 19, an end portion of the protruding portion 13 on the main body 11 side is disposed.

  The annular surface 16 comes into contact with the connected portion 54 attracted to the permanent magnet 14. The annular surface 17 is fixed to the end surface 12.

  Based on the magnetic force of the permanent magnet 14, the connecting portion 4 is configured so that the connected portion 54 of the drill body 2 brought close to the drill holding body 3 so that the protruding portion 13 is inserted into the hole 64 as shown in FIG. By being attracted with respect to the axial direction X, the connected portion 54 is connected to the connecting portion 4. Further, such connection is released when the drill body 2 is pulled away from the drill holder 3 in the axial direction X.

  The permanent magnet 14 may be embedded in the main body 11 so that the annular surface 16 is flush with the end surface 12.

  The locking portion 5 is arranged in the notches 66 and 67 of the locked portion 56 so that a rotational force based on the rotation in the rotation direction R of the drill holder 3 can be applied to the drill body 2. A pair of abutting members 21 and 22 that respectively abut against a pair of defining surfaces of the drill body 2 defining the notches 66 and 67, in this example, abutting surfaces 71 and 72 are provided.

  Since the contact members 21 and 22 are configured in the same manner as each other, the contact member 21 will be described in detail below, and the contact member 22 will be described in detail by adding a symbol a to the drawing as necessary. Description is omitted.

  The abutting member 21 is formed on the main body 23 having a substantially L-shaped cross section and the end 24 on the blade portion 52 side of the main body 23, and is locked most distant from the rotational axis C in the axial direction X. Contact that contacts the contact surface 71 of the locked portion 56 in a plane parallel to the extending direction of the line A and the axial direction X connecting the two points P1 and P2 located on the rotation locus of the portion 70 of the portion 56 A surface 25 and a contact surface 26 connected to the contact surface 25 on the attached portion 6 side and in contact with a part 30 of the annular surface 16 are provided. In this example, the contact surface 26 holds the permanent magnet 14 in cooperation with the end surface 12. An end portion 27 of the main body 23 on the attached portion 6 side is disposed in the notch portion 9 and is fixed to the main body 11 with a screw 80 or the like. The contact surface 25 is a flat surface or a curved surface corresponding to the shape of the contact surface 71 of the locked portion 56.

  The contact member 22 is configured such that the contact surface 25a is a flat surface or a curved surface corresponding to the shape of the contact surface 72 of the locked portion 56 and is in contact with the contact surface 72. 27a is arranged in the notch 10, and is fixed to the main body 11 with a screw 80 or the like. Further, the contact surfaces 25 and 25a face each other in the direction Y with the rotation axis C therebetween.

  The locking portion 5 is related to the rotation direction R by the contact surfaces 25 and 25a of the contact members 21 and 22 fixed to the main body 11 contacting the contact surfaces 71 and 72 of the locked portion 56, respectively. The locked portion 56 is locked. Such a locking portion 5 locks the locked portion 56 to prohibit the drill body 2 and the drill holding body 3 from being rotated relative to each other in the rotation direction R, and the drill holding body 3. The drill body 2 can be rotated by rotation in the rotation direction R.

  The attached portion 6 includes a screwing portion 31 screwed into the rotating device, an annular small-diameter end portion 32 in which the screwing portion 31 is integrally provided on the outer peripheral surface, an annular large-diameter end portion 34, And a frustoconical portion 35 integrally connected to the small-diameter end portion 32 and the large-diameter end portion 34.

  The screwing portion 31 includes a male screw, and is screwed into a female screw (not shown) provided in the rotating device. The drill holder 3 is attached to the rotating device by the screwing. It is like that.

  The large-diameter end 34 is connected to the outer peripheral surface 40 of the large-diameter end 34 and the surface 41 of the main body 11 that is in contact with the contact member 21 and the end surface of the contact member 21 on the attached portion 6 side. 42, the surface 43 of the main body 11 that is in contact with the outer peripheral surface 40 and the contact member 22, and the end surface 42 a of the contact member 22 on the attached portion 6 side. Surface 45. The diameter of the outer peripheral surface 40 of the large-diameter end 34 is equal to the diameter of the outer peripheral surface 39 of the main body 11 in this example.

  The outer peripheral surface of the truncated conical portion 35 is formed as a tapered surface 36 that is gradually reduced in diameter from the small diameter end portion 32 toward the large diameter end portion 34.

  In addition, a through-hole 47 opened at the projecting portion 13 and the small diameter end portion 32 is formed at the center of the drill holder 3. Water or the like flows through the through-hole 47 toward the blade portion 52.

  The above drill holding body 3 is configured to hold the drill body 2 by the connection of the connected portion 54 by the connecting portion 4 and the locking of the locked portion 56 by the locking portion 5, and the attached portion 6 is A rotational force in the rotational direction R is given by the operation of the attached rotating device, and the rotational force is transmitted to the drill body 2 via the locking portion 5.

  The drill body 2 has a blade 52 arranged at one end 51 and a blade 52 arranged at the other end 53 and is connected to the connecting portion 4 in the axial direction X so as to be releasably connected based on magnetic force. A connecting portion 54; a locked portion 56 that is disposed on the peripheral surface 55 of the end portion 53 and that is locked to the locking portion 5 with respect to the rotation direction R by contacting the contact members 21 and 22; And a cylindrical body 57 disposed between the portions 51 and 53. The drill body 2 is formed by integrally connecting a blade portion 52, a connected portion 54, a locked portion 56, and a cylindrical body 57, respectively.

  The blade portion 52 includes an annular main body 61 and diamond abrasive grains fixed to the annular main body 61 by an electrodeposition method. Such a blade part 52 may be configured for opening a glass plate.

  The connected portion 54 is formed on an annular iron member 63 attracted to the permanent magnet 14 based on the magnetic force of the permanent magnet 14 so as to connect the connecting portion 4 to the connected portion 54, and on the inner peripheral surface of the iron member 63. And a hole 64 into which the protrusion 13 is inserted.

  The annular surface 65 on the connecting portion 4 side of the iron member 63 is in contact with the annular surface 16 on the connected portion 54 side of the permanent magnet 14.

  The locked portion 56 is disposed on the peripheral surface 55 of the end portion 53 of the drill body 2, and the flange portion 68 is formed with notches 66 and 67 in which the contact members 21 and 22 are respectively disposed. In a plane parallel to the extending direction of the line A connecting the two points P1 and P2 located on the rotation locus of the portion 70 of the locked portion 56 farthest from the rotation axis C and the axial direction X A pair of contact surfaces 71 and 72 that contact the pair of contact surfaces 25 and 25a of the locking portion 5 are provided. The contact surfaces 71 and 72 are flat surfaces or curved surfaces that face each other in the direction Y with the rotation axis C therebetween and correspond to the shapes of the contact surfaces 25 and 25a. The contact surfaces 71 and 72 also have a function as a defining surface that defines the notches 66 and 67, respectively.

  In the center of the drill body 2, a through-hole 73 that is open at the blade portion 52 and the connected portion 54 is formed. A part of the through hole 73 is constituted by a hole 64. Water or the like flows through the through-hole 73 toward the blade portion 52.

  According to the rotary drill 1 described above, the rod-shaped drill main body 2 and the drill holding body 3 that holds the drill main body 2 are provided, and the drill main body 2 has a blade portion disposed on one end 51. 52, the other end 53, and the connected portion 54 that is releasably connected to the drill holder 3 in the axial direction X, and the peripheral surface 55 at the other end 53. And a locked portion 56 that is brought into contact with the drill holder 3 and locked to the drill holder 3 in the rotation direction R. The drill holder 3 uses the connected portion 54 as a magnetic force in the axial direction X. A connecting portion 4 that is releasably connected, a locking portion 5 that contacts the locked portion 56 and locks the locked portion 56 in the rotation direction R, and a rotating device that rotates the drill holder 3. Attached portion 6 to be attached to the connecting portion 4 Since the drill body 2 is held by connecting the connecting portion 54 and locking the locked portion 56 to the locking portion 5, the mounted portion 6 is attached to the rotating device by screwing or the like. The drill main body 2 having the blade 52 can be easily and quickly removed by releasing the connection based on the magnetic force between the connecting portion 4 of the drill holding body 3 and the connected portion 54 of the drill main body 2. By connecting the connected portion 54 of the main body 2 to the drill holder 3 based on the magnetic force, the drill main body 2 having the blade portion 52 can be easily and quickly mounted. Productivity can be improved.

  In addition, the rotary drill 1 of this example may be provided with a connecting portion made of magnetic steel that generates a magnetic force to attract the connected portion 54 instead of the connecting portion 4, and instead of the connected portion 54, A connected portion made of magnetic steel that generates a magnetic force that attracts the connecting portion 4 may be provided, and instead of the connecting portion 4 and the connected portion 54, a connected portion made of magnetic steel that generates a magnetic force attracting each other. And a connected portion may be provided. Further, the rotary drill 1 may be provided with a concave portion into which the protruding portion 13 is inserted instead of the hole portion 64.

  Moreover, the rotary drill 1 of this example may be provided with a drill body 100 having a shape different from that of the drill body 2 as shown in FIGS.

  Such a drill body 100 is connected to a blade portion 102 disposed at one end portion 101 and a second end portion 103 and is releasably coupled to the drill holder 3 in the axial direction X. A portion 104 and a locked portion 106 that is disposed on the peripheral surface 105 of the other end portion 103 and that is in contact with the drill holder 3 and is locked to the drill holder 3 in the rotation direction R. In addition, the connected portion 104 is connected to the connecting portion 4 in the axial direction X, and the locked portion 106 is locked to the locking portion 5 in the rotational direction R so as to be held by the drill holder 3. It has become.

It is front explanatory drawing of the example of embodiment of this invention. It is II-II arrow explanatory drawing of the example shown in FIG. (A) is a plane explanatory drawing mainly of a drill main part of the example shown in FIG. 1, (b) is a plane explanatory drawing mainly of a drill holding body of the example shown in FIG. It is a cross-sectional explanatory drawing of the example shown in FIG. It is a partially expanded explanatory view of the example shown in FIG. It is explanatory drawing of the example shown in FIG. It is an example shown in FIG. 1, Comprising: It is front explanatory drawing in the case of comprising another drill main body. It is an example shown in FIG. 1, Comprising: It is left side explanatory drawing in the case of comprising another drill main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotary drill 2,100 Drill main body 3 Drill holding body 4 Connection part 5 Locking part 6 Mounted part 52,102 Blade part 54,104 Connected part 56,106 Locked part

Claims (16)

  A drill main body and a drill holding body for holding the drill main body, the drill main body being disposed at one end, the other being disposed at the other end and the axial direction A connected portion that is releasably connected to the drill holder, and a locked portion that is disposed on the peripheral surface of the other end, and the drill holder has the connected portion in the axial direction. A connecting portion that is releasably connected based on magnetic force, and a locking portion that contacts the locked portion and locks the locked portion in the rotational direction. A rotary drill configured to removably hold a drill body by connecting and locking a locked portion to a locking portion.   The rotary drill according to claim 1, wherein one of the connecting portion and the connected portion includes a permanent magnet and is connected to the other of the connecting portion and the connected portion based on the magnetic force of the permanent magnet.   The rotary drill according to claim 2, wherein the other of the connecting portion and the connected portion includes an iron member that is attracted to the permanent magnet.   The connecting portion includes a protruding portion protruding toward the drill body, and the connected portion includes a recess or a hole into which the protruding portion is inserted. Rotating drill as described in   The connecting portion includes an annular permanent magnet that generates a magnetic force that attracts the connected portion, and the connected portion includes an annular iron member that is attracted to the permanent magnet based on the magnetic force of the permanent magnet. The rotary drill according to claim 4, wherein a protrusion is arranged in a space defined on each inner peripheral surface of each of the permanent magnet and the iron member.   The rotary drill according to claim 5, wherein the annular surface on the connecting portion side of the iron member comes into contact with the annular surface on the connected portion side of the permanent magnet.   The locked portion is the locking portion within the plane extending in the direction connecting the two points located on the rotation locus of the portion of the locked portion furthest away from the rotation axis and the plane parallel to the axial direction. It has at least one abutting surface that abuts, and the locking portion abuts the locked portion within the surface so that a rotational force based on the rotation of the drill holder can be applied to the drill body. The rotary drill according to any one of claims 1 to 6, further comprising at least one abutting surface that abuts the surface.   The locked portion includes a pair of contact surfaces facing each other with the rotation axis in the direction orthogonal to the axial direction, and the locked portion is a pair of contact of the locked portion. The rotary drill according to claim 7, comprising a pair of contact surfaces that contact the surfaces.   The rotary drill according to claim 7 or 8, wherein each contact surface of the locking portion and the locked portion is a flat surface or a curved surface.   The locked portion has at least one notch portion arranged at the other end of the drill body, and the locking portion gives the drill body a rotational force based on the rotation of the drill holder. The abutting member which abuts on the regulation surface of the drill main body which is arranged at the notch part and which regulates the notch part is provided. Rotating drill.   The rotary drill according to claim 10, wherein the locked portion includes a flange portion that is disposed at the other end portion of the drill body and has a notch portion in which the contact member is disposed.   The rotary drill according to claim 1, wherein at least one of the connecting portion and the connected portion is made of magnetic steel that generates a magnetic force that attracts the other of the connecting portion and the connected portion.   The rotary drill according to any one of claims 1 to 12, wherein the blade portion includes diamond abrasive grains.   The rotary drill according to any one of claims 1 to 13, wherein the blade portion is configured to open a glass plate.   A drill body for use in the rotary drill according to any one of claims 1 to 14.   A drill holder for use in the rotary drill according to any one of claims 1 to 14.

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