CN104742053B - Electronic type torsional force wrench and its torsion force measuring device - Google Patents

Electronic type torsional force wrench and its torsion force measuring device Download PDF

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Publication number
CN104742053B
CN104742053B CN201310744267.7A CN201310744267A CN104742053B CN 104742053 B CN104742053 B CN 104742053B CN 201310744267 A CN201310744267 A CN 201310744267A CN 104742053 B CN104742053 B CN 104742053B
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China
Prior art keywords
connecting rod
sensor
electronic type
section
torsional force
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CN201310744267.7A
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CN104742053A (en
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杨先民
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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
    • 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
    • B25B13/00—Spanners; Wrenches
    • 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
    • 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
    • B25B23/16—Handles
    • 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

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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)

Abstract

The present invention is electronic type torsional force wrench and its torsion force measuring device, and electronic type torsional force wrench includes a wrench body, a sensor, a hold set and a computing device.Wrench body has a connecting rod and a tool heads.Connecting rod has forward and backward two-port, tool heads connection connecting rod, and is stretched out from the front port of connecting rod.Sensor produces a sensing signal according to its stress degree, and connects the connecting rod of wrench body, and protrudes out the rear port of connecting rod.Hold set is socketed in the connecting rod of wrench body, and connects sensor.Computing device electrically connects sensor, and receives sensing signal and be processed into a torque value.

Description

Electronic type torsional force wrench and its torsion force measuring device
Technical field
The present invention is relevant with torque spanner, particularly relates to a kind of electronic type torsional force wrench and its torsion force measuring device.
Background technology
As electronic component develops, there are the hand-held tools such as many spanners, screwdriver, ratchet spanner to be all gradually introduced tool at present Have detecting torque values and show torque value electronic components, for example, TaiWan, China I 330575, M431047, M360114, The Patent Case such as M372771 and No. M394880, and No. 201204511 publication of TaiWan, China have exposure can detecting torque values Spanner.
Wherein, M394880 patent diseloseslls a kind of multi-functional dynamic torque tool sensing device further, patent diselosesll can replace Change the structure of tool heads.So, torque value is multiplied by the arm of force equal to power, but after the different tool heads of replacing, the arm of force may also change, Therefore, the torque value that the multi-functional dynamic torque tool sensing device further of the patent measures after different tool heads are replaced be able to may also lose Very.
No. 201204511 publication of TaiWan, China discloses the side of a kind of digital torque wrench structure and its balancing force on handle Method, it is that sensor and foil gauge etc. are located on pulling part, and this is also current existing way.But because Digital display is Positioned at the rear of digital torque wrench, so, in assembling, the electric connection between sensor, foil gauge and Digital display It is difficult.
The content of the invention
In view of above-mentioned missing, electronic type torsional force wrench of the invention may achieve a main purpose, and main purpose is electronics Formula torque spanner can directly obtain the actual torque value being applied on workpiece when by external force, and be easier to assemble.
In order to reach above-mentioned main purpose, electronic type torsional force wrench of the invention include a wrench body, a sensor, One hold set and a computing device.Wrench body has a connecting rod and a tool heads.Connecting rod has forward and backward two-port, instrument Head connection connecting rod, and stretched out from the front port of connecting rod.Sensor produces a sensing signal according to its stress degree, and has One canned paragraph, a strain section and a stress section.Canned paragraph connects the connecting rod of wrench body, and positioned at the front end of strain section.Should The rear end for becoming section protrudes out the rear port of connecting rod.Stress section is positioned at the rear end of strain section.Hold set is socketed in the company of wrench body On extension bar, and connect the stress section of sensor.Computing device electrically connects sensor, and receives sensing signal and be processed into a torsion Value.
Thereby, electronic type torsional force wrench of the invention can obtain actually applied in workpiece by sensor and computing device On torsion, and due to sensor set it is unrelated with tool heads, therefore, the electric connection between sensor and computing device is more first Preceding technology is more simple, and more preferably assembles.
The electronic type torsional force wrench of the present invention also may achieve another object, another object is that the torsion of power supply minor torque spanner Power measuring equipment can replace tool heads, and torsion force measuring device can input the actual arm of force of electronic type torsional force wrench, so that electronics Formula torque spanner can obtain accurate torque value.
In order to reach above-mentioned another object, the torsion force measuring device of electronic type torsional force wrench of the invention includes a connection Bar, a sensor, a hold set and a computing device.Sensor produces a sensing signal according to its stress degree, and solid with one Determine section, a strain section and a stress section.Canned paragraph connects connecting rod, and positioned at the front end of strain section.The rear end of strain section protrudes out Go out connecting rod.Stress section is positioned at the rear end of strain section.Hold set is socketed in connecting rod, and connects the stress section of sensor.Calculate Device electrically connects sensor, and receives sensing signal and be processed into a torque value.
In this way, in assembling, avoid the need for considering the circuit of connection between torsion force measuring device and tool heads, facilitate group Dress.
It is preferred that computing device is located in connecting rod.Computing device has a computing circuit, a display and an input single Member.Computing circuit connects display and input block, and by sensing signal computing into torque value, display shows torque value, defeated Enter unit to supply into a numerical value.In this way, the electronic type torsional force wrench after assembling can just input the actual arm of force by input block Value (i.e. numerical value) obtains the purpose of accurate torque value to reach.
Detailed configuration, feature about electronic type torsional force wrench provided by the present invention and its torsion force measuring device, assembling Or occupation mode, it is described by being described in detail in follow-up embodiment.Generally know however, having in field of the present invention The knowledgeable should be able to understand, and these describe and implemented the specific embodiment cited by the present invention in detail, are merely to illustrate the present invention, and It is not used to the patent claim of the limitation present invention.
Brief description of the drawings
Fig. 1 is the schematic diagram of the first preferred embodiment of electronic type torsional force wrench of the present invention.
Fig. 2 is the partial schematic sectional view of electronic type torsional force wrench in Fig. 1.
Fig. 3 is the schematic diagram that electronic type torsional force wrench is employed.
Fig. 4 is the partial schematic sectional view of electronic type torsional force wrench.
Fig. 5 is the partial schematic sectional view of electronic type torsional force wrench.
Fig. 6 is the sensor of electronic type torsional force wrench and the block schematic diagram of computing device.
Fig. 7 and 8 is the signal of the preferred embodiment of torsion force measuring device second of the electronic type torsional force wrench of the present invention respectively Figure.
Fig. 9 is the sensor of electronic type torsional force wrench and the block schematic diagram of computing device.
Embodiment
Hereinafter, each accompanying drawing is hereby coordinated to enumerate the composition that corresponding preferred embodiment carrys out the electronic type torsional force wrench to the present invention Component and reach effect to explain.Component, size and the outward appearance of electronic type torsional force wrench are only used for illustrating this in right each accompanying drawing The technical characteristic of invention, rather than limit the invention.
Fig. 1 to 6 is the schematic diagram of the first preferred embodiment of the electronic type torsional force wrench of the present invention.Such as the institutes of Fig. 1 and 2 Show, electronic type torsional force wrench 10 of the invention includes a wrench body 11, a sensor 13, the computing device 17 of hold set 15 and one.
Wrench body 11 has a connecting rod 111 and a tool heads 113.Connecting rod 111 have forward and backward two-port 115, 117, tool heads 113 connect connecting rod 111, and are stretched out from the front port 115 of connecting rod 111.In this embodiment, connecting rod 111 be long straight metal tube.Tool heads 113 are explained exemplified by opening spanner, but in fact, tool heads 113 can also It is ratchet spanner, double offset ring spanner and box spanner etc..
Sensor 13 according to its stress degree produce a sensing signal, sensor 13 produce sensing signal mode please hold after Stating.In this embodiment, sensor 13 explains by taking pressure sensor as an example, but in fact, sensor 13 can also make Sense stress degree with gravity sensor etc..Sensor 13 has a canned paragraph 131, the one strain stress section of section 133 and one 135, the dotted line in the forward and backward both ends 137,139 of strain section 133, figure is only used for marking respectively for canned paragraph 131 and stress section 135 Show the forward and backward both ends 137,139 of strain section 133, and in fact, dotted line is not present.Canned paragraph 131 connects wrench body 11 Connecting rod 111.The rear end 139 of strain section 133 protrudes out the rear port 117 of connecting rod 111.
Hold set 15 is socketed in the connecting rod 111 of wrench body 11, and connects the stress section 135 of sensor 13.Hold set 15 Preferably it is made from anti-slip materials such as rubber, plastic cement or composites.
Computing device 17 electrically connects sensor 13, and receives sensing signal caused by sensor 13 and handle sensing signal Into a torque value.In this embodiment, computing device 17 is located in the connecting rod 111 of wrench body 11.But in fact, calculate dress Putting 17 position can be adjusted, therefore not to be limited in connecting rod 111.
Furthermore it is to be connected by electric wire (such as enamel-covered wire) between computing device 17 and sensor 13, the position of electric wire can With inside or outside wrench body 11.
As shown in figure 3, the tool heads 113 for working as the electronic type torsional force wrench 10 of the present invention are socketed on a workpiece 20, and make The holding of user handles hold set 15 and towards during locking direction (direction of arrow in a such as figure) rotation, and the locking direction of the present embodiment is Clockwise, but it is not limited in a clockwise direction, workpiece 20 is explained by taking nut as an example, but in fact, workpiece 20 also may be used To be the elements such as bolt.Because user is applied to the strength (arrow in such as figure) of hold set 15, can also pass to sensor 13 by Power section 135 so that the strain section 133 of sensor 13 produces deformation, in this way, sensor 13 will be according to the deformation of strain section 133 Amount produces sensing signal.Wherein, it is big to strain the big expression stress of sensor 13 of the deflection of section 133, strains the small expression of the deflection of section 133 The stress of sensor 13 is small.Then, computing device 17 will receive sensing signal and be processed into torque value.Computing device 17 obtains Torque value be exactly actual torsion that user is applied to workpiece 20 by electronic type torsional force wrench 10.
As shown in figure 4, connecting rod 111 has a through hole 119, through hole 119 connects the rear port 117 of connecting rod 111.Sensing The canned paragraph 131 of device 13 is located in the through hole 119 of connecting rod 111.In this embodiment, between canned paragraph 131 and connecting rod 111 It is to be screwed together with screw, but the connection between canned paragraph 131 and connecting rod 111 is not limited with screw screw-in version.
The strain section 133 of sensor 13 has a perforation 141, perforate 141 pattern not to be depicted as limiting in scheming.Perforation 141 size and size to controlled strain section 133 deformable amount.
Hold set 15 has two bolts 153, and two bolts 153 are spirally connected hold set 15 and the stress section 135 of sensor 13, in this way, hold set 15 inner ring surface 151 and the can of stress section 135 positively links together, and enables the electronic type torsional force wrench 10 of the present invention Really the torque value being applied on workpiece is reflected.
As shown in figure 5, hold set 15 and stress section 135 is linked together using two bolts 153 except foregoing, the present invention The hold set 15 of electronic type torsional force wrench 10 can also have a projection 155 and an inner ring surface 151.Projection 155 protrudes out inner ring surface 151, and abut the stress section 135 of sensor 13.In this way, when hold set 15 is by external force, it can be ensured that the projection 155 of hold set 15 is right The single-point stress of stress section 135 of sensor 13, so that the electronic type torsional force wrench 10 of the present invention obtains accurate torque value.
The explanation of complex chart 4 and 5 understands that the connected mode of hold set 15 and stress section 135 has a lot, therefore is not painted with this two figure It is shown as limiting.
As shown in fig. 6, computing device 17 has a display 173 of a computing circuit 171 and concatenation operation circuit 171. Computing circuit 171 is into torque value by sensing signal computing caused by sensor 13.Display 173 shows torque value.In this way, make User is in the electronic type torsional force wrench of the operation present invention, so that it may sees from display 173 being applied at present on workpiece at any time Torque value.
Fig. 7 to 9 is the schematic diagram for the second preferred embodiment for showing the electronic type torsional force wrench of the present invention, and this is preferably real Apply example and the difference of the first preferred embodiment is, electronic type torsional force wrench 30 does not include the instrument of electronic type torsional force wrench 10 Head.As illustrated in the schematic views of figures 7 and 8, the torsion force measuring device 31 of electronic type torsional force wrench 30 of the invention senses including a connecting rod 33, one Device 35, a hold set 37 and a computing device 39.
Connecting rod 33, the structure of sensor 35 and hold set 37, connection, running and purpose are the companies with the first preferred embodiment Extension bar, sensor and hold set are identical, are repeated no more in this.
Especially, as shown in figures 8 and 9, computing device 39 also has an input block 395.The concatenation operation of input block 395 electricity Road 391, and supply into a numerical value, numerical value sensor 35 to the distance between the pivot of tool heads 50 D.Computing circuit 391 According to numerical value and sensing signal computing into torque value.
Physically, the operational formula of torque value is that power is multiplied by the arm of force, and the arm of force be exactly the point of application to pivot away from From corresponding to the present embodiment, above-mentioned power is exactly that sensor 35 senses sensing signal caused by external force, and the arm of force is exactly to sense Device 35 to the pivot of tool heads 50 distance D (i.e. numerical value).Understood by the operational formula of torque value, due to the length of tool heads Degree and specification are different, that is, the pivot position of tool heads is also different, and therefore, after tool heads are replaced, the arm of force (counts Value) it can also change, so, the present invention provides input block 395 to input more accurate arm of force value, is relatively met with acquisition actual Torque value.But if tool heads 111 are not replaceable, input block 395, which can be omitted, not to be had to.
Wherein, input block 395 can be the touch control screen or other that numeric keypad and display 393 combine Input unit, therefore input block 395 is not exemplified as limiting with above-mentioned.
Referring again to Fig. 7, because connecting rod 33 has the setting of front port 331, therefore, user can be about to Wrench certainly (i.e. tool heads 50) are inserted from front port 331, and form electronic type torsional force wrench 30, as shown in Figure 8.
The electronic type torsional force wrench for understanding the present invention by above-mentioned explanation can reach the purpose of the present invention really.
Finally it is to be emphasized again that the present invention in preceding taking off composed component disclosed in embodiment, by way of example only, is not For limiting the protection domain of this case, the replacement of other equivalence elements or change, it also should be this case claim and covered.

Claims (10)

  1. A kind of 1. electronic type torsional force wrench, it is characterised in that including:One wrench body, there are a connecting rod and a tool heads, should Connecting rod has forward and backward two-port, and the tool heads connect the connecting rod, and are stretched out from the front port of the connecting rod；One sensor, A sensing signal is produced according to its stress degree, and with a canned paragraph, a strain section and a stress section, canned paragraph connection should The connecting rod of wrench body, and positioned at the front end of the strain section, and the rear port of the neighbouring connecting rod, the rear end of the strain section are convex The rear port of the connecting rod is stretched out, the stress section is located at the rear end of the strain section；One hold set, it is socketed in the connection of the wrench body On bar, and connect the stress section of the sensor；And a computing device, the sensor is electrically connected, and receive the sensing signal and locate Manage into a torque value.
  2. 2. electronic type torsional force wrench according to claim 1, it is characterised in that the connecting rod has a through hole, the through hole The front port and rear port of the connecting rod are connected, the canned paragraph of the sensor is fixed in the through hole of the connecting rod, the sensor Strain section have one perforation.
  3. 3. electronic type torsional force wrench according to claim 1 or 2, it is characterised in that the hold set has a projection and an inner ring Face, the projection protrude out the inner ring surface, and abut the stress section of the sensor.
  4. 4. electronic type torsional force wrench according to claim 1 or 2, it is characterised in that the hold set has an at least bolt, the spiral shell Bolt is spirally connected the hold set and the stress section of the sensor.
  5. 5. electronic type torsional force wrench according to claim 1, it is characterised in that the computing device is located at the wrench body Connecting rod, the computing device have a computing circuit and connect a display of the computing circuit, and the computing circuit believes the sensing Number computing shows the torque value into the torque value, the display.
  6. A kind of 6. torsion force measuring device of electronic type torsional force wrench, it is characterised in that including:One connecting rod；One sensor, foundation Its stress degree produces a sensing signal, and connects the connection with a canned paragraph, a strain section and a stress section, the canned paragraph Bar, and positioned at the front end of the strain section, and the rear port of the neighbouring connecting rod, the rear end of the strain section protrude out the connecting rod, The stress section is located at the rear end of the strain section；One hold set, it is socketed in the connecting rod, and connects the stress section of the sensor；And One computing device, the sensor is electrically connected, and receive the sensing signal and be processed into a torque value.
  7. 7. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterised in that the connecting rod has One front port, a rear port and a through hole, the front port and rear port of the through hole UNICOM connecting rod, the canned paragraph of the sensor In the through hole of the connecting rod, the stress section of the sensor is located at outside the rear port of the connecting rod.
  8. 8. the torsion force measuring device of the electronic type torsional force wrench according to claim 6 or 7, it is characterised in that the hold set has One projection and an inner ring surface, the projection protrude out the inner ring surface, and against the stress section of the sensor.
  9. 9. the torsion force measuring device of the electronic type torsional force wrench according to claim 6 or 7, it is characterised in that the hold set has An at least bolt, the bolt are spirally connected the hold set and the stress section of the sensor.
  10. 10. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterised in that the computing device It is located in the connecting rod, the computing device has a computing circuit, a display and an input block, and it is aobvious that the computing circuit connects this Show device and the input block, and the sensing signal computing is shown into the torque value into the torque value, the display, the input block Supply into a numerical value.
CN201310744267.7A 2013-12-30 2013-12-30 Electronic type torsional force wrench and its torsion force measuring device Active CN104742053B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310744267.7A CN104742053B (en) 2013-12-30 2013-12-30 Electronic type torsional force wrench and its torsion force measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310744267.7A CN104742053B (en) 2013-12-30 2013-12-30 Electronic type torsional force wrench and its torsion force measuring device

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CN104742053A CN104742053A (en) 2015-07-01
CN104742053B true CN104742053B (en) 2017-11-28

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111397789B (en) * 2019-01-02 2023-12-29 鸿富锦精密电子(郑州)有限公司 Torsion pressure sensing device and electric screwdriver

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10031422C2 (en) * 2000-06-28 2002-04-25 Eduard Janssen Handle lever, especially for a torque wrench
DE20104963U1 (en) * 2001-03-21 2001-06-07 Wille Gmbh & Co Torque wrench with electro-optical measuring system
JP5236444B2 (en) * 2008-12-09 2013-07-17 株式会社東日製作所 Torque Wrench
TWM372771U (en) * 2009-05-20 2010-01-21 Legend Lifestyle Products Corp Torque detection display device for tool
TWM394880U (en) * 2010-07-19 2010-12-21 Legend Lifestyle Products Corp Multi-functional torque sensor device
CN102343568B (en) * 2010-08-03 2013-12-04 厦门联贸电子有限公司 Digital torque wrench structure and method for balancing force on handle of digital torque wrench
TWM431047U (en) * 2012-02-03 2012-06-11 Sunheng Technology Co Ltd Electronic torque wrench
CN203696861U (en) * 2013-12-30 2014-07-09 杨先民 Electronic torque wrench and torque measuring device thereof

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