CN104742053A - Electronic torque wrench and torque measuring device thereof - Google Patents
Electronic torque wrench and torque measuring device thereof Download PDFInfo
- Publication number
- CN104742053A CN104742053A CN201310744267.7A CN201310744267A CN104742053A CN 104742053 A CN104742053 A CN 104742053A CN 201310744267 A CN201310744267 A CN 201310744267A CN 104742053 A CN104742053 A CN 104742053A
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- CN
- China
- Prior art keywords
- connecting rod
- sensor
- section
- electronic type
- wrench
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides an electronic torque wrench and a torque measuring device thereof. The electronic torque wrench comprises a wrench body, a sensor, a holding sleeve and a calculating device. The wrench body is provided with a connecting rod and a tool head. The connecting rod is provided with a front end opening and a rear end opening. The tool head is connected with the connecting rod, and extends from the front end opening of the connecting rod. The sensor generates a sensing signal according to the stressed degree of the sensor, is connected with the connecting rod of the wrench body, and convexly extends out of the rear end opening of the connecting rod. The connecting rod of the wrench body is sleeved with the holding sleeve which is connected with the sensor. The calculating device is electrically connected with the sensor, receives the sensing signal and processes the sensing signal to be a torque value.
Description
Technical field
The present invention is relevant with torque spanner, refers to a kind of electronic type torsional force wrench and torsion force measuring device thereof especially.
Background technology
Along with electronic component development, there are the hand-held tools such as many spanners, screwdriver, ratchet spanner to import all gradually to have the electronic components of detecting torque values and display torque value at present, such as, the Patent Case such as TaiWan, China I330575, M431047, M360114, M372771 and No. M394880, and TaiWan, China No. 201204511 publication has, and disclose can the spanner of detecting torque values.
Wherein, a kind of multi-functional dynamic torque tool sensing apparatus of M394880 patent diselosesll, this patent diselosesll can replace the structure of tool heads.So, torque value equals power and is multiplied by the arm of force, but after changing different tool heads, the arm of force also may change, and therefore, the torque value that the multi-functional dynamic torque tool sensing apparatus of this patent measures after replacing different tool heads also may distortion.
TaiWan, China No. 201204511 publication discloses a kind of method of digital torque wrench structure and balancing force on handle thereof, and it is located on pulling part by sensor and foil gauge etc., and this is also current existing way.But because Digital display is the rear being positioned at digital torque wrench, so in assembling, sensor, electric connection between foil gauge and Digital display are difficult.
Summary of the invention
Because above-mentioned disappearance, electronic type torsional force wrench of the present invention can reach a main purpose, and main purpose is that electronic type torsional force wrench directly can obtain the actual torque value be applied on workpiece when being subject to external force, and more easily assembles.
In order to reach above-mentioned main purpose, electronic type torsional force wrench of the present invention comprises a wrench body, a sensor, holds cover and a calculation element.Wrench body has a connecting rod and a tool heads.Connecting rod has forward and backward two-port, and tool heads connects connecting rod, and stretches out from the front port of connecting rod.Sensor produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and stressed section.Canned paragraph connects the connecting rod of wrench body, and is positioned at the front end of strain section.The rear end of strain section protrudes out the rear port of connecting rod.Stressed section is positioned at the rear end straining section.Hold be socketed in wrench body connecting rod on, and connect stressed section of sensor.Calculation element electrical connection sensor, and receive sensing signal and be processed into a torque value.
By this, electronic type torsional force wrench of the present invention can obtain the actual torsion be applied on workpiece by sensor and calculation element, and has nothing to do with tool heads because sensor is arranged, therefore, electric connection between sensor and calculation element comparatively prior art is more simple, and better assembles.
Electronic type torsional force wrench of the present invention also can reach another object, another object is that the torsion force measuring device of power supply minor torque spanner can replace tool heads, and torsion force measuring device can input the actual arm of force of electronic type torsional force wrench, torque value accurately can be obtained to make electronic type torsional force wrench.
In order to reach another above-mentioned object, the torsion force measuring device of electronic type torsional force wrench of the present invention comprises a connecting rod, a sensor, holds cover and a calculation element.Sensor produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and stressed section.Canned paragraph connects connecting rod, and is positioned at the front end of strain section.The rear end of strain section protrudes out connecting rod.Stressed section is positioned at the rear end straining section.Hold cover to be socketed on connecting rod, and connect stressed section of sensor.Calculation element electrical connection sensor, and receive sensing signal and be processed into a torque value.
So, when assembling, just do not need between torsion force measuring device with tool heads at the circuit considering to be connected, ease of assembly.
Preferably, calculation element is located on connecting rod.Calculation element has a computing circuit, a display and an input block.Computing circuit connects display and input block, and sensing signal computing is become torque value, and display display torque value, input block is for input one numerical value.So, the electronic type torsional force wrench after assembling just can reach by the arm of force value (i.e. numerical value) that input block input is actual the object obtaining torque value accurately.
About the detailed configuration of electronic type torsional force wrench provided by the present invention and torsion force measuring device thereof, feature, assembling or occupation mode, described in describing in detail in follow-up embodiment.But have in field of the present invention and usually know that the knowledgeable should be able to understand, these describe in detail and implement the specific embodiment cited by the present invention, only for illustration of the present invention, and are not used to limit patent claim of the present invention.
Accompanying drawing explanation
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 calculation element.
Fig. 7 and 8 is the schematic diagram of torsion force measuring device second preferred embodiment of electronic type torsional force wrench of the present invention respectively.
Fig. 9 is the sensor of electronic type torsional force wrench and the block schematic diagram of calculation element.
Detailed description of the invention
Below, each accompanying drawing is hereby coordinated to enumerate corresponding preferred embodiment to the composition component of electronic type torsional force wrench of the present invention and reach effect to explain.In right each accompanying drawing, the component of electronic type torsional force wrench, size and outward appearance are only used for technical characteristic of the present invention is described, but not are construed as limiting the present invention.
Fig. 1 to 6 is schematic diagrames of the first preferred embodiment of electronic type torsional force wrench of the present invention.As shown in Fig. 1 and 2, electronic type torsional force wrench 10 of the present invention comprises wrench body 11, sensor 13, holds cover 15 and a calculation element 17.
Wrench body 11 has connecting rod 111 and a tool heads 113.Connecting rod 111 has forward and backward two-port 115,117, and tool heads 113 connects connecting rod 111, and stretches out from the front port 115 of connecting rod 111.In this embodiment, connecting rod 111 is long straight metal tubes.Tool heads 113 opens spanner for example to explain, but in fact, tool heads 113 also can be ratchet spanner, double offset ring spanner and box spanner etc.
Sensor 13 produces a sensing signal according to its stressed degree, and the mode that sensor 13 produces sensing signal please be stated by Rong Hou.In this embodiment, sensor 13 explains for pressure sensor, but in fact, sensor 13 also can use gravity sensor etc. to respond to stressed degree.Sensor 13 has a canned paragraph 131, and strains section 133 and one stressed section 135, canned paragraph 131 and stressed section 135 lay respectively at the forward and backward two ends 137,139 of strain section 133, in figure, dotted line is only used for indicating the forward and backward two ends 137,139 straining section 133, and in fact, dotted line is non-existent.Canned paragraph 131 connects the connecting rod 111 of wrench body 11.The rear end 139 of strain section 133 protrudes out the rear port 117 of connecting rod 111.
Hold cover 15 to be socketed on the connecting rod 111 of wrench body 11, and connect stressed section 135 of sensor 13.Holding cover 15 preferably selects the anti-slip materials such as rubber, plastic cement or composite to make.
Calculation element 17 is electrically connected sensor 13, and receives the sensing signal of sensor 13 generation and sensing signal is processed into a torque value.In this embodiment, calculation element 17 is located on the connecting rod 111 of wrench body 11.But in fact, the position of calculation element 17 can be adjusted, therefore not so that connecting rod 111 to be limited.
Moreover be connected by electric wire (such as enamel-covered wire) between calculation element 17 with sensor 13, the position of electric wire can be inner or outside in wrench body 11.
As shown in Figure 3, when the tool heads 113 of electronic type torsional force wrench 10 of the present invention is socketed on a workpiece 20, and the hand of user grip cover 15 and towards one locking direction (as the direction of arrow in figure) rotate time, the locking direction of the present embodiment is clockwise, but be not limited in a clockwise direction, workpiece 20 explains for nut, but in fact, workpiece 20 also can be the elements such as bolt.Because user applies to be in one's hands the strength (as arrow in figure) of cover 15, also stressed section 135 that can pass to sensor 13, make the strain section 133 of sensor 13 produce deformation, so, sensor 13 will produce sensing signal according to the deflection of strain section 133.Wherein, strain section 133 deflection large expression sensor 13 is greatly stressed, and strain section 133 deflection little expression sensor 13 is stressed little.Then, calculation element 17 will receive sensing signal and be processed into torque value.The torque value that calculation element 17 obtains is exactly user is applied to workpiece 20 actual torsion by electronic type torsional force wrench 10.
As shown in Figure 4, connecting rod 111 has a through hole 119, and through hole 119 is communicated with the rear port 117 of connecting rod 111.The canned paragraph 131 of sensor 13 is positioned at the through hole 119 of connecting rod 111.In this embodiment, be screwed together with screw between canned paragraph 131 and connecting rod 111, 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, and the pattern of perforation 141 is not depicted as limit with institute in scheming.The size of perforation 141 and size are in order to the deformable amount of controlled strain section 133.
Hold cover 15 and have two bolts 153, two bolts 153 are spirally connected and hold stressed section 135 of cover 15 and sensor 13, so, hold the inner ring surface 151 of cover 15 and stressed section 135 just can positively link together, and make electronic type torsional force wrench 10 of the present invention can really reflect the torque value be applied on workpiece.
As shown in Figure 5, except aforementioned utilize two bolts 153 to make to hold cover 15 and stressed section 135 link together, the holding cover 15 and also can have projection 155 and an inner ring surface 151 of electronic type torsional force wrench 10 of the present invention.Projection 155 protrudes out inner ring surface 151, and abuts stressed section 135 of sensor 13.So, when holding cover 15 and being subject to external force, can guarantee that stressed section of 135 single-points of the projection 155 pairs of sensors 13 holding cover 15 are stressed, obtain torque value accurately to make electronic type torsional force wrench 10 of the present invention.
The explanation of complex chart 4 and 5 is known, and holding cover 15 has much with the connected mode of stressed section 135, therefore does not illustrate with this two figure and be limited.
As shown in Figure 6, calculation element 17 has a display 173 of a computing circuit 171 and concatenation operation circuit 171.Computing circuit 171 is that the sensing signal computing produced by sensor 13 becomes torque value.Display 173 shows torque value.So, user, when operating electronic type torsional force wrench of the present invention, just can see from display 173 torque value be applied to up till now workpiece at any time.
Fig. 7 to 9 is the schematic diagrames of the second preferred embodiment showing electronic type torsional force wrench of the present invention, and this preferred embodiment is with the difference of the first preferred embodiment, and electronic type torsional force wrench 30 does not comprise the tool heads of electronic type torsional force wrench 10.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 present invention comprises connecting rod 33, sensor 35, and holds cover 37 and a calculation element 39.
Connecting rod 33, sensor 35 and to hold the structure of cover 37, connection, running and object be overlap identical with the connecting rod of the first preferred embodiment, sensor and holding, repeat no more in this.
Especially, as shown in figures 8 and 9, calculation element 39 also has an input block 395.Input block 395 concatenation operation circuit 391, and for input one numerical value, the distance D between the pivot of numerical value sensor 35 to tool heads 50.Computing circuit 391 becomes torque value according to numerical value and sensing signal computing.
Physically, the operational formula of torque value is that power is multiplied by the arm of force, and the arm of force is exactly the distance of the point of application to pivot, correspond to the present embodiment, above-mentioned power is exactly the sensing signal that sensor 35 senses that external force produces, and the arm of force is exactly the distance D (i.e. numerical value) of sensor 35 to tool heads 50 pivot.Operational formula by torque value is known, due to length and the specification difference of tool heads, namely the pivot position of tool heads is also different, therefore, when after replacement tool heads, the arm of force (i.e. numerical value) also can change, so, the invention provides input block 395 to input more accurate arm of force value, to obtain more realistic torque value.If but tool heads 111 is not replaceable, input block 395 can be omitted need not.
Wherein, input block 395 can be numeric keypad, the touch control screen that combines with display 393 or other input units, therefore input block 395 is not exemplified as limit with above-mentioned.
Referring again to Fig. 7, because connecting rod 33 has the setting of front port 331, therefore, user certainly can be about to Wrench (i.e. tool heads 50) and insert from front port 331, and forms electronic type torsional force wrench 30, as shown in Figure 8.
The known electronic type torsional force wrench of the present invention of explanation of above can reach object of the present invention really.
Finally, again emphasize, the present invention, in front taking off composed component disclosed in embodiment, is only and illustrates, be not used for limiting the protection domain of this case, substituting or change of other equivalence elements, also should be this case claim and contained.
Claims (10)
1. an electronic type torsional force wrench, is characterized in that, comprising:
One wrench body, have a connecting rod and a tool heads, this connecting rod has forward and backward two-port, and this tool heads connects this connecting rod, and stretches out from the front port of this connecting rod;
One sensor, a sensing signal is produced according to its stressed degree, and there is a canned paragraph, a strain section and stressed section, this canned paragraph connects the connecting rod of this wrench body, and be positioned at the front end of this strain section, the rear end of this strain section protrudes out the rear port of this connecting rod, this stressed section rear end being positioned at this strain section;
One holds cover, is socketed on the connecting rod of this wrench body, and connects stressed section of this sensor; And
One calculation element, is electrically connected this sensor, and receives this sensing signal and be processed into a torque value.
2. electronic type torsional force wrench according to claim 1, it is characterized in that, this connecting rod has a through hole, and this through hole is communicated with front port and the rear port of this connecting rod, the canned paragraph of this sensor is fixed in the through hole of this connecting rod, and the strain section of this sensor has a perforation.
3. electronic type torsional force wrench according to claim 1 and 2, is characterized in that, this holds cover a projection and an inner ring surface, and this projection protrudes out this inner ring surface, and abuts stressed section of this sensor.
4. electronic type torsional force wrench according to claim 1 and 2, is characterized in that, this holds cover at least one bolt, and this bolt is spirally connected, and this holds cover and stressed section of this sensor.
5. electronic type torsional force wrench according to claim 1, it is characterized in that, this calculation element is located at the connecting rod of this wrench body, this calculation element has a computing circuit and connects a display of this computing circuit, this sensing signal computing is become this torque value by this computing circuit, and this display shows this torque value.
6. a torsion force measuring device for electronic type torsional force wrench, is characterized in that, comprising:
One connecting rod;
One sensor, produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and stressed section, this canned paragraph connects this connecting rod, and being positioned at the front end of this strain section, the rear end of this strain section protrudes out this connecting rod, this stressed section rear end being positioned at this strain section;
One holds cover, is socketed on this connecting rod, and connects stressed section of this sensor; And
One calculation element, is electrically connected this sensor, and receives this sensing signal and be processed into a torque value.
7. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterized in that, this connecting rod has a front port, a rear port and a through hole, the front port of this this connecting rod of through hole UNICOM and rear port, the canned paragraph of this sensor is positioned at the through hole of this connecting rod, and stressed section of this sensor is positioned at outside the rear port of this connecting rod.
8. the torsion force measuring device of the electronic type torsional force wrench according to claim 6 or 7, is characterized in that, this holds cover a projection and an inner ring surface, and this projection protrudes out this inner ring surface, and against stressed section of this sensor.
9. the torsion force measuring device of the electronic type torsional force wrench according to claim 6 or 7, is characterized in that, this holds cover at least one bolt, and this bolt is spirally connected, and this holds cover and stressed section of this sensor.
10. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterized in that, this calculation element is located on this connecting rod, this calculation element has a computing circuit, a display and an input block, this computing circuit connects this display and this input block, and this sensing signal computing is become this torque value, this display shows this torque value, and this input block is for input one numerical value.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104742053A true CN104742053A (en) | 2015-07-01 |
| CN104742053B CN104742053B (en) | 2017-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310744267.7A Active CN104742053B (en) | 2013-12-30 | 2013-12-30 | Electronic type torsional force wrench and its torsion force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397789A (en) * | 2019-01-02 | 2020-07-10 | 鸿富锦精密电子(郑州)有限公司 | Torque pressure sensing device and electric screwdriver |
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| DE20104963U1 (en) * | 2001-03-21 | 2001-06-07 | Wille Gmbh & Co | Torque wrench with electro-optical measuring system |
| DE10031422C2 (en) * | 2000-06-28 | 2002-04-25 | Eduard Janssen | Handle lever, especially for a 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 |
| CN102343568A (en) * | 2010-08-03 | 2012-02-08 | 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 |
| JP5236444B2 (en) * | 2008-12-09 | 2013-07-17 | 株式会社東日製作所 | Torque Wrench |
| US20130199344A1 (en) * | 2012-02-03 | 2013-08-08 | Sunheng Technology Co., Ltd. | Electric wrench |
| CN203696861U (en) * | 2013-12-30 | 2014-07-09 | 杨先民 | Electronic torque wrench and torque measuring device thereof |
-
2013
- 2013-12-30 CN CN201310744267.7A patent/CN104742053B/en active Active
Patent Citations (8)
| 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 |
| CN102343568A (en) * | 2010-08-03 | 2012-02-08 | 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 |
| US20130199344A1 (en) * | 2012-02-03 | 2013-08-08 | Sunheng Technology Co., Ltd. | Electric wrench |
| CN203696861U (en) * | 2013-12-30 | 2014-07-09 | 杨先民 | Electronic torque wrench and torque measuring device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397789A (en) * | 2019-01-02 | 2020-07-10 | 鸿富锦精密电子(郑州)有限公司 | Torque pressure sensing device and electric screwdriver |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104742053B (en) | 2017-11-28 |
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