WO2015045445A1 - ビット連結具及びねじ締め装置 - Google Patents

ビット連結具及びねじ締め装置 Download PDF

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Publication number
WO2015045445A1
WO2015045445A1 PCT/JP2014/057832 JP2014057832W WO2015045445A1 WO 2015045445 A1 WO2015045445 A1 WO 2015045445A1 JP 2014057832 W JP2014057832 W JP 2014057832W WO 2015045445 A1 WO2015045445 A1 WO 2015045445A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit
shaft
hole
sphere
central axis
Prior art date
Application number
PCT/JP2014/057832
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
義男 佐藤
成雄 池野
Original Assignee
株式会社バンガードシステムズ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社バンガードシステムズ filed Critical 株式会社バンガードシステムズ
Priority to JP2015538927A priority Critical patent/JPWO2015045445A1/ja
Priority to KR1020167009363A priority patent/KR20160055854A/ko
Priority to CN201480052785.5A priority patent/CN105592985A/zh
Publication of WO2015045445A1 publication Critical patent/WO2015045445A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool

Definitions

  • the present invention relates to a technique for attaching a bit to a rotating shaft.
  • Patent Document 1 As a configuration for attaching a bit to a shaft, for example, there is a configuration disclosed in Patent Document 1.
  • the shaft disclosed in Patent Document 1 is provided with a hole in a cylindrical portion, and a ball is accommodated in the hole. A part of the ball accommodated in the hole is pushed by a chuck provided on the outer peripheral surface of the shaft and protrudes into the hollow portion of the shaft.
  • a circumferential groove is provided in a portion inserted into the hollow portion of the shaft.
  • the present invention aims to facilitate the exchange of bits.
  • an insertion port for inserting a bit along a central axis is formed, and a shaft in which at least one hole reaching from the outer peripheral surface to the insertion port is formed, and the bit is not inserted
  • a bit connector having a retaining ring that presses in the direction of the rim is provided.
  • the at least one hole includes two holes facing each other, and one fastener is disposed in each hole.
  • the outer peripheral surface is formed with two grooves along the circumferential direction, and an auxiliary snap ring is fitted in each groove, and the snap ring is fixed to the shaft by the two auxiliary snap rings.
  • the fastener is a sphere.
  • the present invention provides a shaft in which an insertion port for inserting a bit is formed along a central axis and at least one hole extending from an outer peripheral surface to the insertion port is formed, and a direction intersecting the central axis
  • a bit connector having a fastener disposed in the at least one hole so as to be movable, a retaining ring having elasticity and pressing the fastener in the direction of the central axis, and a recess on the outer peripheral surface
  • a screw tightening device that includes the bit that is formed and fixed to the shaft when the concave portion is hooked on the fastener, and a drive unit that rotates the central axis.
  • the screw tightening device further includes a cover that covers the bit, and a case that fixes the cover, accommodates the drive unit therein, and includes a passage passage that leads to the gap. The air is sucked and discharged out of the case.
  • bit replacement can be facilitated as compared with a configuration in which the chuck is moved to replace the bit.
  • FIG. The figure which showed the external appearance of the screw fastening apparatus 1 which concerns on one Embodiment of this invention. Sectional drawing of the screw fastening apparatus 1.
  • FIG. The front view and right view of the bit 10.
  • FIG. The figure which showed the external appearance of the motor 30, and the edge part of the shaft 31.
  • FIG. The figure for demonstrating operation
  • FIG. The figure which showed the external appearance of the pin which concerns on a modification.
  • FIG. 1 is an external view of a screw tightening device 1 according to an embodiment of the present invention.
  • the screw tightening device 1 is an adsorption-type screw tightening device that sucks air around the tip of the bit into the device and sucks the screw to the tip of the bit.
  • a front side the side with the bit in the screw fastening device 1
  • a rear side the side opposite to the side with the bit
  • FIG. 2 is a cross-sectional view of the screw fastening device 1.
  • a rear cover 15 that closes the rear side of the main body case 14 is attached to the rear side of the main body case 14.
  • a part of the main body case 14 is provided with a passage 141 that penetrates from the front side to the rear side of the main body case 14 and serves as an air passage.
  • a connector 20 to which a control cable is connected is attached to the rear cover 15.
  • a signal for controlling the motor is supplied from the control cable to the connector 20
  • the motor 30 for rotating the bit 10 is driven, and the rotational speed of the bit 10 and the tightening torque of the screw are controlled.
  • a hollow coupling machine 21 to which a tube for sucking air sucked from the periphery of the tip of the bit 10 from the screw fastening device 1 is connected is attached to the rear cover 15.
  • the motor 30 is a motor for rotating the bit 10.
  • the motor 30 is fixed to the motor mounting mount 13 that closes the front side of the main body case 14 with screws, and is positioned in the main body case 14 as shown in FIG.
  • a part of the motor mounting mount 13 is provided with a passage 131 that penetrates from the front side to the rear side and serves as an air passage.
  • the cylindrical coupling joint 16 is a coupling for coupling the passage 141 and the passage 131. As shown in FIG. 2, the front side of the coupling joint 16 is contained in the motor mounting mount 13, and the rear side is contained in the main body case 14.
  • the cylindrical O-ring holder 17 is a component that holds an O-ring 171 that prevents air sucked from around the tip of the bit 10 from flowing into the main body case 14.
  • the O-ring holder 17 is attached to the front side of the motor mounting mount 13.
  • the bit 10 is supported by the O-ring holder 17 and the O-ring 171, and the movement of the bit 10 in the radial direction is restricted.
  • the holding machine 12 is a cover that covers the O-ring holder 17 and the bit 10 and is attached to the motor mounting mount 13 by screws. Note that the inner diameter of the space in the holder 12 is larger than the diameter of the bit 10 at any position, and there is a gap between the bit 10 and the holder 12.
  • the first cover 11 ⁇ / b> A and the second cover 11 ⁇ / b> B are covers that cover the front side of the center of the bit 10.
  • the second cover 11B is attached to the front side of the retainer 12, and the first cover 11A is attached to the front side of the second cover 11B.
  • the flow of air sucked from the periphery of the tip of the bit 10 is indicated by arrows. Since the air in the tube connected to the coupling machine 21 is sucked by a pump connected to the tube, the air in the passage 141 leading to the coupling machine 21 flows from the coupling machine 21 to the tube. Since the passage 141 is connected to the passage 131 via the coupling joint 16, when the air in the passage 141 flows to the rear side, the air in the coupling joint 16 and the air in the passage 131 flow toward the passage 141. . Further, since the passage 131 is connected to the space in the holder 12, when the air in the passage 131 flows to the rear side, the air in the holder 12 flows toward the passage 131. In the O-ring holder 17, since the O-ring 171 is in contact with the bit 10, air on the front side of the O-ring holder 17 does not flow behind the O-ring 171, that is, in the main body case 14.
  • the inner diameter of the first cover 11A and the second cover 11B is larger than the outer diameter of the bit 10, there is a gap between the first cover 11A and the bit 10, and also between the second cover 11B and the bit 10. There is a gap. Since the hollow portion of the second cover 11B is connected to the space in the retainer 12, when the air in the retainer 12 flows rearward, the air in the gap between the bit 10 and the second cover 11B is retained in the retainer 12. The air in the gap between the bit 10 and the first cover 11A flows to the second cover 11B side. When the air in the gap between the bit 10 and the first cover 11A flows rearward, the air around the tip of the bit 10 is sucked into the gap between the bit 10 and the first cover 11A. When the tip of the bit 10 is brought close to the head of the screw, the screw is adsorbed to the tip of the bit 10 as the air around the tip of the bit 10 is sucked into the first cover 11A.
  • FIG. 3 is a front view and a right side view of the bit 10.
  • the bit 10 is a bit for tightening the cross-recessed machine screw.
  • the bit 10 includes a first shaft portion 101, a second shaft portion 102, and an insertion portion 103.
  • the tip of the first shaft portion 101 has a shape that fits into the cross hole of the screw, and the other portion of the first shaft portion 101 has a circular cross section viewed from the axial direction.
  • the second shaft portion 102 has a circular cross section when viewed from the axial direction, and has a larger diameter than the first shaft portion 101. Note that the second shaft portion 102 is tapered toward the first shaft portion 101 side.
  • the insertion portion 103 is plate-shaped and has a rectangular shape when viewed in plan.
  • the insertion portion 103 has a first surface 1031 that is flat along the axial direction, and a second surface 1032 that is also flat along the axial direction. Further, the insertion portion 103 has a hole 1033 that penetrates the insertion portion 103 from the first surface 1031 toward the second surface 1032.
  • the hole 1033 is an example of a concave portion on which a first sphere 34 (described later) is applied and a concave portion on which the second sphere 35 is applied.
  • the central axis of the hole 1033 intersects the central axis of the bit 10.
  • FIG. 4A is a front view of the motor 30,
  • FIG. 4B is an enlarged view of the end of the shaft 31 of the motor 30,
  • FIG. 4C is a cross-sectional view of the end of the shaft 31,
  • FIG. 4D is a diagram illustrating a cross section of an end portion of the shaft 31 and parts disposed at the end portion of the shaft 31.
  • the shaft 31, the first sphere 34, the second sphere 35, and the third retaining ring 38 constitute a bit connector.
  • the shaft 31 is a rotating shaft obtained by processing a metal cylinder, and an insertion port 301 formed by cutting along the axial direction of the shaft 31 is provided at the tip.
  • the cross section of the insertion port 301 is circular.
  • one of the shafts 31 that sandwiches the insertion port 301 is referred to as a first end 310
  • the other of the shaft 31 that sandwiches the insertion port 301 is referred to as a second end 320.
  • the first end 310 and the second end 320 are provided with a groove 302 and a groove 303 along the circumferential direction of the shaft 31.
  • a hole 304A into which the first sphere 34 is inserted is provided between the groove 302 and the groove 303, and in the second end portion 320, the second sphere 35 is inserted.
  • a hole 304 ⁇ / b> B is provided between the groove 302 and the groove 303.
  • the hole 304A and the hole 304B have a circular shape when viewed in the radial direction of the shaft 31, and the diameter of the central axis side of the shaft 31 is the outer peripheral side of the shaft 31 as shown in FIG. It is smaller than the diameter.
  • the first sphere 34 and the second sphere 35 are fasteners for supporting the bit 10 and are metal spheres.
  • the first sphere 34 is inserted into the hole 304A
  • the second sphere 35 (second fastener) is inserted into the hole 304B (second hole).
  • the diameter of the first sphere 34 is larger than the diameter on the central axis side of the hole 304A
  • the diameter of the second sphere 35 is larger than the diameter on the central axis side of the hole 304B.
  • the first retaining ring 36 is fitted in the groove 302, and the second retaining ring 37 is fitted in the groove 303.
  • a third retaining ring 38 is fitted between the first retaining ring 36 and the second retaining ring 37.
  • the first retaining ring 36 and the second retaining ring 37 are parts for preventing the third retaining ring 38 from moving in the axial direction of the shaft 31.
  • the first retaining ring 36 and the second retaining ring 37 are made of metal, and are so-called C-rings whose shape viewed from the axial direction is an alphabet C shape.
  • the third retaining ring 38 is a component that pushes the first sphere 34 and the second sphere 35 in the direction of the central axis of the shaft 31, that is, in the direction of the holes 304A and 304B.
  • the third retaining ring 38 is made of metal, and the shape viewed from the axial direction is an alphabet C shape.
  • the third retaining ring 38 has elasticity and is elastically deformed in the direction of the inner diameter or the outer diameter. Since the outer diameters of the first retaining ring 36 and the second retaining ring 37 are larger than the outer diameter of the third retaining ring 38, the movement of the third retaining ring 38 toward the end side is prevented.
  • FIG. 5 is a view for explaining the operation when the bit 10 is mounted on the screw tightening device 1.
  • the first ball 34 inserted into the hole 304A is pushed by the third retaining ring 38.
  • the second sphere 35 that protrudes toward the central axis side of the shaft 31 and is inserted into the hole 304B also protrudes toward the central axis side of the shaft 31 by being pushed by the third retaining ring 38.
  • the first sphere 34 and the second sphere 35 are engaged with the hole 1033, and the bit 10 is supported by the first sphere 34 and the second sphere 35 at the position shown in FIG.
  • the shaft 31 rotates from the state shown in FIG. 5C, the first sphere 34 and the second sphere 35 rotate while supporting the insertion portion 103.
  • the insertion portion 103 When the bit 10 is attached to the screw fastening device 1, the insertion portion 103 is positioned in the groove 302 by moving the screw fastening device 1 in the axial direction of the bit 10 with respect to the fixed bit 10. You may do it. Further, when removing the bit 10 from the screw fastening device 1, the insertion portion 103 may be detached from the groove 302 by fixing the bit 10 and moving the screw fastening device 1 in the axial direction of the bit 10. .
  • the screw tightening device 1 is an adsorption-type screw tightening device.
  • the bit 10 may be configured to adsorb the screw by magnetic force, or may not be configured to adsorb the screw to the bit. May be.
  • the bit 10 corresponds to the cross-recessed machine screw, but the tip of the bit 10 has a shape that fits in the thread of the screw corresponding to the screw with the slot. It may be. Further, the bit 10 does not correspond to a screw, and may have another shape such as a drill.
  • the part that is inserted into the hole 304A and the hole 304B and supports the bit 10 may not be a sphere.
  • a pin 50 having one end of a cylinder processed into a hemispherical shape is inserted into the hole 304A and the hole 304B, and the hemispherical portion is engaged with the hole 1033 to support the bit 10. It is good also as a structure.
  • the pin 51 having one end of the cylinder processed into a conical shape is inserted into the hole 304A and the hole 304B, and the conical portion is engaged with the hole 1033 to support the bit 10. It is good also as a structure.
  • the hole 304A and the hole 304B have a circular shape when viewed in the radial direction of the shaft 31, but the shape of the hole is not limited to a circular shape.
  • the shape of the shaft 31 when viewed in the radial direction may be a polygon such as a rectangle, a hexagon, or an octagon.
  • the portion engaging with the first sphere 34 and the second sphere 35 in the insertion portion 103 is the hole 1033, but the portion engaging with the first sphere 34 and the second sphere 35 is not a through hole. May be.
  • the insertion portion 103 may have a recess 1034A in which a part of the first sphere 34 enters and a recess 1034B in which a part of the second sphere 35 enters.
  • the shape of the concave portion 1034A and the concave portion 1034B when viewed in the depth direction may be circular or polygonal.
  • the shaft 31 is formed by processing a metal cylinder.
  • the shaft 31 is formed by processing a metal polygonal column whose shape when viewed in the axial direction is a polygon.
  • 304A and hole 304B may be provided. Even when the shape of the shaft 31 when viewed in the axial direction is a polygon, the central axis of the shaft 31 passes through the insertion port 301.
  • the first sphere 34, the second sphere 35, and the third retaining ring 38 are separate parts, but the first sphere 34, the second sphere 35, and the third retaining ring 38 are It may be integrated.
  • the bit 10 is connected to the shaft 31 of the motor 30, but the present invention is not limited to this configuration.
  • one end of the rotary shaft connected to the shaft 31 is processed in the same manner as the end portion of the shaft 31 of the above-described embodiment, and the first sphere 34, the second sphere 35, and the third sphere disposed in the processed portion.
  • the bit 10 may be supported by the retaining ring 38.
  • the first end portion 310 has the hole 304A and the second end portion 320 has the hole 304B.
  • the present invention is not limited to this configuration.
  • a configuration may be adopted in which either one of the hole 304A and the hole 304B is not provided, and the bit 10 is supported by any one of the first sphere 34 or the second sphere 35.
  • the bit connector of the present invention has a shaft in which an insertion port for inserting a bit is formed along a central axis, at least one hole reaching from the outer peripheral surface to the insertion port, and the bit is inserted.
  • the air sucked from the periphery of the tip of the bit 10 is discharged from the rear cover 15 to the outside of the screw fastening device 1, but a tube is connected to the passage 141 and the air in the tube is pumped. You may suck. Alternatively, a tube may be connected to the passage 131 without providing the passage 141, and the air in the tube may be sucked with a pump.
  • the first sphere 34 and the second sphere 35 are made of metal.
  • the first sphere 34 and the second sphere 35 are not limited to metal, and may be made of other materials such as synthetic resin. Good.
  • the first retaining ring 36, the second retaining ring 37, and the third retaining ring 38 may be made of other materials such as synthetic resin instead of metal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
PCT/JP2014/057832 2013-09-27 2014-03-20 ビット連結具及びねじ締め装置 WO2015045445A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2015538927A JPWO2015045445A1 (ja) 2013-09-27 2014-03-20 ビット連結具及びねじ締め装置
KR1020167009363A KR20160055854A (ko) 2013-09-27 2014-03-20 비트 연결구 및 나사 조임장치
CN201480052785.5A CN105592985A (zh) 2013-09-27 2014-03-20 起子头连结件和螺钉紧固装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-201277 2013-09-27
JP2013201277 2013-09-27

Publications (1)

Publication Number Publication Date
WO2015045445A1 true WO2015045445A1 (ja) 2015-04-02

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ID=52742605

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Application Number Title Priority Date Filing Date
PCT/JP2014/057832 WO2015045445A1 (ja) 2013-09-27 2014-03-20 ビット連結具及びねじ締め装置

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JP (1) JPWO2015045445A1 (ko)
KR (1) KR20160055854A (ko)
CN (1) CN105592985A (ko)
WO (1) WO2015045445A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113695890A (zh) * 2021-08-23 2021-11-26 天津津航计算技术研究所 一种提高深腔狭小空间螺钉装配效率工装

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119380A (en) * 1980-01-31 1981-09-18 Bosch Gmbh Robert Compressed air type driver
JPH0438381U (ko) * 1990-07-31 1992-03-31
JPH09131668A (ja) * 1995-11-10 1997-05-20 Toshiba Corp ドライバ
JP2007216338A (ja) * 2006-02-17 2007-08-30 Makoto Onishi 作業具接続装置
US20080023924A1 (en) * 2006-07-27 2008-01-31 Hsin Yin Enterprise Co., Ltd. Tool retaining or connecting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7156002B1 (en) * 2005-08-26 2007-01-02 Fu-Yi Chan Tool shaft and tool bit arrangement
CN102975154A (zh) * 2012-11-23 2013-03-20 大行科技(深圳)有限公司 扳手工具及其制造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119380A (en) * 1980-01-31 1981-09-18 Bosch Gmbh Robert Compressed air type driver
JPH0438381U (ko) * 1990-07-31 1992-03-31
JPH09131668A (ja) * 1995-11-10 1997-05-20 Toshiba Corp ドライバ
JP2007216338A (ja) * 2006-02-17 2007-08-30 Makoto Onishi 作業具接続装置
US20080023924A1 (en) * 2006-07-27 2008-01-31 Hsin Yin Enterprise Co., Ltd. Tool retaining or connecting device

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Publication number Publication date
KR20160055854A (ko) 2016-05-18
CN105592985A (zh) 2016-05-18
JPWO2015045445A1 (ja) 2017-03-09

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