TW200642788A - Torque control device for electrical tools - Google Patents

Torque control device for electrical tools

Info

Publication number
TW200642788A
TW200642788A TW094118561A TW94118561A TW200642788A TW 200642788 A TW200642788 A TW 200642788A TW 094118561 A TW094118561 A TW 094118561A TW 94118561 A TW94118561 A TW 94118561A TW 200642788 A TW200642788 A TW 200642788A
Authority
TW
Taiwan
Prior art keywords
motor
voltage
processor
detecting circuit
torque
Prior art date
Application number
TW094118561A
Other languages
Chinese (zh)
Other versions
TWI262112B (en
Inventor
fu-xiang Zhong
Original Assignee
Techway Ind Co Ltd
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 Techway Ind Co Ltd filed Critical Techway Ind Co Ltd
Priority to TW094118561A priority Critical patent/TWI262112B/en
Priority to GB0609636A priority patent/GB2427041B/en
Priority to DE102006023966A priority patent/DE102006023966A1/en
Priority to FR0652020A priority patent/FR2889895B1/en
Priority to KR1020060050398A priority patent/KR100719198B1/en
Application granted granted Critical
Publication of TWI262112B publication Critical patent/TWI262112B/en
Publication of TW200642788A publication Critical patent/TW200642788A/en

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D17/00—Control of torque; Control of mechanical power
    • G05D17/02—Control of torque; Control of mechanical power characterised by the use of electric means
    • 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
    • B23P19/065—Arrangements for torque limiters or torque indicators in screw or nut setting machines
    • B23P19/066—Arrangements for torque limiters or torque indicators in screw or nut setting machines by electrical means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

This invention relates to a torque control device for an electrical tool that has a switching circuit, a voltage detecting circuit, a torque detecting circuit and a processor. The switching circuit connects between a motor of the electrical tool and a DC voltage source. The voltage detecting circuit detects voltage or current variation between the motor and the DC voltage source, or their varying frequency within a time unit. The torque detecting circuit based on the detected voltage or current variation data outputs an actual torque value of the motor to a single chip processor. The processor compares the actual torque value with a default value to determine whether the actual torque is greater than the default. If so, the switching circuit is turned off by the processor to prevent the motor from being damaged.
TW094118561A 2005-06-06 2005-06-06 Torque control device for electrical tools TWI262112B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
TW094118561A TWI262112B (en) 2005-06-06 2005-06-06 Torque control device for electrical tools
GB0609636A GB2427041B (en) 2005-06-06 2006-05-16 Torque control device for electrical tools
DE102006023966A DE102006023966A1 (en) 2005-06-06 2006-05-22 Torque control device for use in electrical tool, has processor that switches-off one switching circuit of device if actual torque value of motor of tool is determined to be greater than predetermined value
FR0652020A FR2889895B1 (en) 2005-06-06 2006-06-05 TORQUE CONTROL DEVICE FOR ELECTRIC TOOLS
KR1020060050398A KR100719198B1 (en) 2005-06-06 2006-06-05 Torque control device for electrical tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094118561A TWI262112B (en) 2005-06-06 2005-06-06 Torque control device for electrical tools

Publications (2)

Publication Number Publication Date
TWI262112B TWI262112B (en) 2006-09-21
TW200642788A true TW200642788A (en) 2006-12-16

Family

ID=37440179

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094118561A TWI262112B (en) 2005-06-06 2005-06-06 Torque control device for electrical tools

Country Status (5)

Country Link
KR (1) KR100719198B1 (en)
DE (1) DE102006023966A1 (en)
FR (1) FR2889895B1 (en)
GB (1) GB2427041B (en)
TW (1) TWI262112B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101549864B1 (en) 2009-09-29 2015-09-03 엘지전자 주식회사 Apparatus and method for controlling single-phase induction motor
TWI516342B (en) * 2013-10-04 2016-01-11 Tranmax Machinery Co Ltd Hydraulic power tool with speed and speed function
DE102014108398B4 (en) * 2014-06-13 2016-12-08 Techway Industrial Co., Ltd. Electric rivet nut tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940003002B1 (en) * 1991-12-30 1994-04-09 금성기전 주식회사 Over current relay
GB2269025B (en) * 1992-07-24 1995-08-16 Delco Chassis Overseas Corp Torque controller for electrical tool
GB2271197B (en) * 1992-08-28 1995-10-04 Nissan Motor Impact type clamping apparatus
KR0157865B1 (en) * 1993-11-29 1999-03-20 김회수 Overload test apparatus
KR20000012975A (en) * 1998-08-03 2000-03-06 김세광 Device of cutting load indication and overload cut-off for electromotive machine tool

Also Published As

Publication number Publication date
TWI262112B (en) 2006-09-21
GB0609636D0 (en) 2006-06-28
DE102006023966A1 (en) 2006-12-14
GB2427041A (en) 2006-12-13
FR2889895B1 (en) 2011-04-08
KR100719198B1 (en) 2007-05-16
FR2889895A1 (en) 2007-02-23
KR20060127793A (en) 2006-12-13
GB2427041B (en) 2007-05-30

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees