WO2002097386A1 - Adaptateur de trepan pour detecteur de couple - Google Patents

Adaptateur de trepan pour detecteur de couple Download PDF

Info

Publication number
WO2002097386A1
WO2002097386A1 PCT/JP2002/004784 JP0204784W WO02097386A1 WO 2002097386 A1 WO2002097386 A1 WO 2002097386A1 JP 0204784 W JP0204784 W JP 0204784W WO 02097386 A1 WO02097386 A1 WO 02097386A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
bit
torque
torque detector
adapter
Prior art date
Application number
PCT/JP2002/004784
Other languages
English (en)
Japanese (ja)
Inventor
Katsuyuki Totsu
Original Assignee
Katsuyuki Totsu
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 Katsuyuki Totsu filed Critical Katsuyuki Totsu
Publication of WO2002097386A1 publication Critical patent/WO2002097386A1/fr
Priority to HK04107604A priority Critical patent/HK1064735A1/xx

Links

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
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed

Definitions

  • the present invention relates to a method for assembling screws and bolts with a rotary tightening tool such as an electric screwdriver or a driver in an assembly line of various industrial products.
  • the present invention relates to a bit adapter for a torque detector that can easily confirm or maintain torque accuracy by connecting the rotary tightening tool to a torque detector so that the torque value can be maintained. is there.
  • BACKGROUND ART Conventionally, when assembling various industrial products by tightening screws and bolts with a rotary tightening tool such as an electric screwdriver or an air screwdriver, it is important to always tighten with a constant torque value. .
  • the rotary tightening tool is required to set and set a reference torque value so that the tightening torque value can always maintain a predetermined value, and rotate the tool using an appropriate torque detector.
  • Torque management work that can adjust the torque of the tightening tool is indispensable.
  • a torque adjusting means of the rotary tightening tool for example, a coil spring and a clutch mechanism are combined, and the compression state of the coil spring is adjusted, so that the setting of the tightening torque value can be performed with high accuracy.
  • this type of torque adjusting means is configured based on the principle of finding a balance point between the spring constant of the coil spring and the rotational force of the rotary tightening tool acting in the axial direction.
  • the present inventor uses a strain gauge or the like to measure the torque value of the rotary tightening tool and instantaneously converts the measured torque value into a digital value.
  • a driver bit of the rotary tightening tool is connected to the rotary tightening tool via a bit comprising coupling means for transmitting the rotary tightening force, and an adapter (rotary inertial force buffer).
  • the invention according to the above-mentioned patent is characterized in that one end of a shaft with a thread groove is adjustably screwed to a shaft receiving base with a screw hole, and the other end of the shaft has an output shaft of a rotary tightening tool.
  • a locking portion detachably engaged with the locking portion; a flange portion provided in a portion of the shaft adjacent to the locking portion; and a thrust between the flange portion and the shaft receiving base.
  • a bit 'adapter rotary inertia damper functioning as a means for buffering the rotary inertia force of the output shaft of the rotary tightening tool is formed by interposing the bearing and the coil spring. It is characterized by the following.
  • Fig. 5 and Fig. 6 show the schematic configuration of the conventional bit adapter (rotary inertia buffer) described above.
  • the bit adapter 10 is a square step that fits tightly into a special opening shape formed in the bit coupling portion 22 provided in the torque detector 20.
  • a shaft receiving stand 13 with a screw hole integrally provided with a part 12 and a screw hole 13a provided at the center of the receiving stand 13 are screwed at one end side so as to be able to advance and retreat.
  • a shaft 14 having a thread groove, a compression coil spring 15 surrounding the shaft 14 and being arranged concentrically therewith, and a pedestal 13 for the shaft 14 And is basically constituted by a flange portion 16 sandwiching the compression coil spring 15 together with the receiving stand 13.
  • the other end of the shaft 14 is detachably attached to the tip of the output shaft 24 of a rotary tightening tool such as an electric screwdriver, an air screwdriver, or a nut setter to be measured.
  • a rotary tightening tool such as an electric screwdriver, an air screwdriver, or a nut setter to be measured.
  • an engaging portion 14a formed at the end of the bit or the like and having a checkable shape is provided.
  • This A bearing 17 formed to surround the flange portion 16 is provided for the shaft 14 formed as described above. That is, the bearing 17 is loosely fitted to the shaft 14, and is also provided between the flange 14 and the flange 16 via an appropriate fastener 18 and a thrust bearing 19. And slidably abut against the flange portion 16.
  • a compression coil spring 15 inserted between the bearing receiver 17 and the receiving table 13 so as to surround the shaft 14 is elastically pressed and held at both ends thereof. (See Fig. 6).
  • the bit adapter 10 configured in this manner engages the locking portion 14a of the shaft 14 with the output pin 24 of the rotary tightening tool, which is the object to be measured, and The measurement preparation is completed by tightly fitting the square step portion 12 integrally formed on the pedestal 13 to the bit coupling portion 22 of the torque detector 20 (see FIG. 5).
  • the shaft 14 rotates together with the output shaft 24, and one end of the shaft 14 is inserted into the screw hole 13 a provided in the center of the receiving table 13. Screw in.
  • the compression coil spring 15 is compressed in the axial direction between the bearing 17 and the pedestal 13, and reaches a compression limit corresponding to the strength of the rotational torque applied to the shaft 14.
  • the shaft 14 can no longer be screwed into the screw hole 13 a of the cradle 13.
  • the rotation torque obtained on the output shaft 24 of the rotary tightening tool is transmitted to the detection unit (not shown) of the torque detector 20 via the pit * adapter 10.
  • the tillage inertia force is absorbed by the plastic deformation due to the elastic force of the compression coil spring 15 and only the net rotation torque can be transmitted to the detection unit.
  • the torque detector 20 In the detection unit the rotational indignation accumulated on the output shaft 24 of the rotary tightening tool is absorbed and mitigated by the elastic force of the compression coil spring 15 to reproduce the same state as in the actual rotary tightening work. It enables accurate measurement of torque value in response to only net rotation torque.
  • the shaft 14 with the thread groove is opposed to the elastic force of the compression coil spring 15 so that the shaft support 1 Since the screw 14 is forcibly screwed into the screw hole 13a, an excessive stress is applied to the shaft 14. As a result, the shaft 14 breaks instantaneously after a large number of operations. There is a risk of doing it.
  • a bit adapter for the torque detector is configured to couple the tool with the bit coupling part of the torque detector, and the tip of the rotary tightening tool is provided at one end side with respect to the bit adapter.
  • a shaft is provided with a tightening screw having a bit fitting groove for engaging with the shaft, and the other end of the shaft is passed through a shaft receiving stand.
  • a coil spring for a one-way clutch is wound around the outer periphery of the cradle so that they can be connected to each other, and further, the lower end of the cradle is engaged with a bit coupling portion of a torque detector.
  • Square steps This not only makes it possible to absorb and mitigate the rotational inertia force of the rotary tightening tool by the coil spring for one-way clutch, and to measure a torque value in response to only an appropriate rotational torque, Simple and quick operation from the point of connection with the tip of the rotary tightening tool and the close fitting of the bit connection part of the torque detector to the completion of torque value measurement, without special skill And that it can be achieved in the future.
  • a coil spring for a one-way clutch as a coupling means between a shaft coupled with a tightening screw to which the tightening force of the rotary tightening tool is directly transmitted and a shaft receiving stand, the tightening screw is acted on.
  • the coil spring for the one-way clutch operates so as to wind the above-mentioned shaft and the shaft receiving base together with the screw elasticity thereof, thereby rotating the rotary tightening tool. While absorbing and relaxing the inertial force, the tightening force of the rotary tightening tool is transmitted to the shaft receiving pedestal, so that an appropriate torque value can be measured.
  • a flange portion is provided at an upper end portion of the shaft and a screw groove is screwed at a center portion thereof.
  • the tightening screw is screwed through a washer made of an elastic member and a metal plate, and the lower end of the shaft is passed through the bearing to the shaft receiving base through a bearing.
  • an object of the present invention is to connect a rotary tightening tool such as a driver bit, which is connected to an output shaft of a rotary drive source, to a bit connecting portion of a torque detector, and to obtain an appropriate torque of the rotary tightening tool.
  • a rotary tightening tool such as a driver bit
  • it is detachably connected to the rotary tightening tool to absorb and reduce the rotational inertia force accumulated at the tip of the tool, and it is possible to measure a torque value responsive only to an appropriate rotational torque.
  • the work until the measurement of the torque value is completed by connecting this to the tip of the rotary tightening tool and fitting it tightly to the pit connection part of the torque detector is required.
  • a bit adapter for a torque detector includes a torque tightening tool such as a driver bit that is coupled to an output of a rotary drive source.
  • a torque tightening tool such as a driver bit that is coupled to an output of a rotary drive source.
  • the bit detector for the torque detector configured to be coupled to the bit coupling portion of
  • a shaft to which a tightening screw having a bit fitting groove to be engaged with the tip of the rotary tightening tool is connected, and the other end of this shaft is used as a shaft support.
  • a coil spring for a one-way clutch is wound around the outer periphery of the shaft and the shaft receiving base so as to be coupled to each other,
  • the lower end of the shaft receiving base is provided with a corner for engaging with the bit coupling portion of the torque detector.
  • a torque step characterized in that a stepped portion is provided, and the rotational inertia force of the rotary tightening tool is absorbed and reduced by the coil spring for the one-way clutch, so that a torque value responsive only to an appropriate rotational torque can be measured.
  • Bit adapter for detector
  • the coil spring for the one-way clutch has one end connected and fixed to a part of the shaft receiving pedestal, and the shaft and the shaft receiving pedestal are connected at the time of normal rotation for tightening the screw.
  • the clutch may be connected so that when the shaft is rotated in the reverse direction, the clutch connection between the shaft and the shaft receiving base is released.
  • FIG. 1 is a schematic perspective view showing one embodiment of a bit adapter for a torque detector according to the present invention.
  • FIG. 2 is a central longitudinal sectional view of the pit adapter for a torque detector shown in FIG.
  • FIG. 3 is a plan view of the bit adapter for a torque detector shown in FIG.
  • FIG. 4 is a bottom view of the detector bit adapter shown in FIG.
  • FIG. 5 is a cross-sectional side view of a main part showing a schematic configuration of a conventional bit adapter for a torque detector.
  • FIG. 6 is a schematic explanatory view showing a use state of the conventional bit adapter for a torque detector in FIG.
  • FIG. 1 is a schematic perspective view of the torque detector bit adapter 30 in the present embodiment
  • FIG. 2 is a central longitudinal section showing the internal configuration of the torque detector bit adapter 30 in the present embodiment
  • 3 is a plan view of the torque detector bit adapter 30 shown in FIG. 1
  • FIG. 4 is a bottom view of the torque detector bit * adapter 30 shown in FIG. .
  • the bit adapter 30 of the present embodiment is provided with a bit fitting that engages with the tip of a rotary tightening tool 32 such as a driver bit that is coupled to the output shaft of a required rotary drive source at the upper end.
  • a shaft 36 to which a tightening screw 34 provided with a mating groove 34a is connected is provided, and the lower end of the shaft 36 is attached to the shaft receiving base 38 via a bearing 39 as appropriate. It is configured so that it can be connected and locked together with the one-way clutch coil spring 40 wound around the outer periphery of the shaft 36 and the shaft receiving base 38 while being locked.
  • the lower end of the shaft receiving table 38 has a special opening shape formed in the bit coupling section 22 (see FIG. 5) provided in the torque detector 20.
  • a square step 38a that is closely fitted is provided.
  • the coil spring 40 for the one-way clutch has its one end 40a fixedly connected to a part of the shaft receiving base 38, and the shaft 36 has a forward rotation for tightening a screw.
  • the shaft 36 and the shaft support 38 are clutch-coupled and set to rotate simultaneously (see Fig. 1).
  • the clutch 36 is disengaged from the shaft receiving base 38 when the shaft 36 is rotated in the reverse direction (during left rotation) (see FIG. 1). ).
  • a flange 36a is provided at the upper end of the shaft 36, and a screw groove 36b is screwed at the center of the flange 36a. (a) through a resilient member 42 a made of rubber or a synthetic resin or the like, and a screw 43 made of a metal plate 42 b interposed with the tightening screw 34. (See Fig. 2).
  • a synthetic resin push is attached to the gap portion 44 formed on a part of the outer periphery of the shaft 36 as shown by a broken line so as to be able to come into close contact with the outer peripheral surface of the push.
  • the coil spring 40 for the automatic clutch may be wound.
  • a cover member is provided for the shaft 36 so as to surround the coil spring 40 for the automatic clutch wound around the outer periphery thereof, and an upper end portion of the cover member is appropriately connected via a bearing. It is also possible to adopt a configuration in which the lower end of the cover member is connected and fixed to the upper end of the shaft 36 and the outer periphery of the shaft receiving base 38 is fixed. With this configuration, it is possible to prevent unexpected accidents during the measurement of the torque value, for example, due to contact with the coil spring 40 for one-way clutches, and the handling is simplified. The above safety can be sufficiently ensured.
  • the rotary tightening tool 3 when measuring the set torque value for tightening the screw of the rotary tightening tool 32, the rotary tightening tool 3 is used. 2 is connected to the bit adapter 30 for the torque detector, and this is closely fitted to the bit coupling part 22 of the torque detector 20 until the measurement of the torque value is completed. With the coil spring 40 for the one-way clutch.
  • the tool can absorb and mitigate the rotational resilience of the attached tool 32 to measure the torque value in response to only the appropriate rotational torque, and it is simple and quick without any special skills. Can be achieved.
  • the one-way clutch coil spring 40 is used as a means for absorbing and reducing the rotational inertia force of the rotary tightening tool 32, so that the coil Design dimensions (wire diameter of coil springs, etc.) can be made relatively small compared to conventional bit * adapters, and manufacturing costs can be reduced. Also, when the rotary tightening tool 32 is rotated in reverse (rotation in the direction of screw removal), the clutch function is released and the shaft idles, so that the coil spring is not deformed or damaged. It has the advantage of being extremely safe.
  • the pit adapter for a torque detector includes a rotary tightening tool such as a driver bit coupled to an output shaft of a rotary drive source, and a torque detector.
  • a rotary tightening tool such as a driver bit coupled to an output shaft of a rotary drive source
  • a torque detector In a bit adapter for a torque detector configured to be coupled to a bit coupling portion, a shuffling coupling is provided with a tightening screw having a bit fitting groove engaged with a tip of the rotary tightening tool at one end. The other end of the shaft is inserted into the shaft receiving stand, and the one-way clutch coil spring is wound around the shaft and the outer periphery of the shaft receiving stand to be connected to each other.
  • a square step is provided at the lower end of the shaft support to engage with the pit coupling part of the torque detector, and the one-way clutch coil spring rotates the rotary tightening tool.
  • Custom By absorbing and relaxing the force and measuring the torque value in response to only the appropriate rotational torque, the tip of the rotary tightening tool can be connected to this torque detector pit adapter.
  • the work from the close fitting of this to the bit coupling part of the torque detector to the completion of the measurement of the torque value can be achieved simply and quickly without any special skills, and Can be manufactured at a low cost with a simple configuration. it can.
  • one end of the one-way clutch coil spring is fixedly connected to a part of a shaft receiving base, and the shaft is tightened with a screw.
  • the shaft and the shaft receiving base are clutch-coupled.
  • the clutch-and-shaft coupling between the shaft and the shaft receiving base is released.
  • a flange portion is provided, and a screw groove is screwed at the center of the flange portion. The screw groove is provided between the flange portion and the flange portion via a washer made of an elastic member and a metal plate.
  • the tightening screw is screwed in, and the lower end of the shaft is fixed to the shaft receiving base through a bearing so as to absorb the rotational inertia force of the rotary tightening tool. It is possible to further optimize the sum, the work to complete the measurement of the torque value described above, a skilled without requiring, can be properly and safely accomplished.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

La présente invention concerne un adaptateur de trépan pour un détecteur de couple capable d'absorber et de libérer une force d'inertie en rotation s'accumulant au niveau trépan d'un outil de serrage tournant, de mesurer une valeur de couple en réaction uniquement à un couple de rotation approprié, de mener facilement et rapidement les opérations jusqu'à la mesure de la valeur du couple sans qu'il y ait besoin d'un savoir-faire particulier, et peu coûteux à fabriquer en raison de sa structure simple. Cet adaptateur comprend un axe (36) pourvu d'une vis de serrage (34) dont une rainure d'adaptation sur le trépan (34a) vient au contact de la partie trépan de l'outil de serrage tournant (32) monté sur l'une de ses extrémités. L'autre extrémité de l'axe (36) prend dans la table support d'axe (38). Un ressort hélicoïdal (40) pour embrayage à simple effet est passé autour de l'axe (36) et de la table (38) de façon qu'ils soient solidaires l'un de l'autre. Enfin, une structure en arrêtes à angles droits (38a) prenant dans la partie de liaison avec le trépan (22) d'un détecteur de couple (20) occupe la partie inférieure de la table support d'axe (38).
PCT/JP2002/004784 2001-05-29 2002-05-17 Adaptateur de trepan pour detecteur de couple WO2002097386A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HK04107604A HK1064735A1 (en) 2001-05-29 2004-10-04 Bit adopter for torque detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001159936A JP4748880B2 (ja) 2001-05-29 2001-05-29 トルク検出器用ビット・アダプタ
JP2001-159936 2001-05-29

Publications (1)

Publication Number Publication Date
WO2002097386A1 true WO2002097386A1 (fr) 2002-12-05

Family

ID=19003430

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/004784 WO2002097386A1 (fr) 2001-05-29 2002-05-17 Adaptateur de trepan pour detecteur de couple

Country Status (4)

Country Link
JP (1) JP4748880B2 (fr)
CN (1) CN1220038C (fr)
HK (1) HK1064735A1 (fr)
WO (1) WO2002097386A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9855088B2 (en) 2014-01-17 2018-01-02 DePuy Synthes Products, Inc. Torque limiting instrument
US9908221B1 (en) 2017-03-21 2018-03-06 International Business Machines Corporation Tools with engagement sensors and indicators
US10194988B2 (en) 2014-01-17 2019-02-05 DePuy Synthes Products, Inc. Torque limiting instrument

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE532792C2 (sv) * 2007-07-13 2010-04-13 Atlas Copco Tools Ab Regulator för kraftverktyg
CN107367342B (zh) * 2016-05-13 2020-07-28 成都豪能科技股份有限公司 圆锥摩擦副剥离力矩测量系统
US10315294B2 (en) * 2017-05-09 2019-06-11 Snap-On Incorporated Inertial socket adaptor for torque application tools
CN108562390B (zh) * 2018-05-23 2024-05-14 兴机电器集团有限公司 断路器底盘车定扭矩摇把
JP2020030090A (ja) * 2018-08-22 2020-02-27 ユニパルス株式会社 トルク変換器
CN112683441B (zh) * 2020-12-03 2022-02-15 南京欧测电子科技有限公司 一种扭力测试设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56120837A (en) * 1980-02-29 1981-09-22 Katsuyuki Totsu Rotational inertia force buffer
JPS5931429A (ja) * 1982-08-14 1984-02-20 Katsuyuki Totsu トルク検出器
JP2000329629A (ja) * 1999-05-18 2000-11-30 Sugisaki Keiki Kk 回転慣性力緩衝器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001264199A (ja) * 2000-03-21 2001-09-26 Katsuyuki Totsu トルク検出器用ビット・アダプタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56120837A (en) * 1980-02-29 1981-09-22 Katsuyuki Totsu Rotational inertia force buffer
JPS5931429A (ja) * 1982-08-14 1984-02-20 Katsuyuki Totsu トルク検出器
JP2000329629A (ja) * 1999-05-18 2000-11-30 Sugisaki Keiki Kk 回転慣性力緩衝器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9855088B2 (en) 2014-01-17 2018-01-02 DePuy Synthes Products, Inc. Torque limiting instrument
US10194988B2 (en) 2014-01-17 2019-02-05 DePuy Synthes Products, Inc. Torque limiting instrument
US9908221B1 (en) 2017-03-21 2018-03-06 International Business Machines Corporation Tools with engagement sensors and indicators

Also Published As

Publication number Publication date
CN1511251A (zh) 2004-07-07
JP2002346945A (ja) 2002-12-04
HK1064735A1 (en) 2005-02-04
JP4748880B2 (ja) 2011-08-17
CN1220038C (zh) 2005-09-21

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