CN102431001B - Digital display screwdriver - Google Patents
Digital display screwdriver Download PDFInfo
- Publication number
- CN102431001B CN102431001B CN 201110325798 CN201110325798A CN102431001B CN 102431001 B CN102431001 B CN 102431001B CN 201110325798 CN201110325798 CN 201110325798 CN 201110325798 A CN201110325798 A CN 201110325798A CN 102431001 B CN102431001 B CN 102431001B
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- screwdriver
- sensor
- digital display
- electronic building
- building brick
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Abstract
The invention discloses a digital display screwdriver which comprises a rotating component, a reversing component, an electronic component, a sensor, a power source and a grip, wherein a containing space is arranged inside the grip; the reversing component, the sensor and the power source are arranged in the containing space; the rotating component is fixedly connected with the reversing component; one end of the sensor is fixedly connected with the rotating component, and the other end is connected with the grip; the electronic component is connected with the sensor; and the power source is connected with the electronic component. The operator can obtain the pretightening degree of the torque according to green, yellow or red light displayed on one indicator lamp, adjust the initial pretightening of the screwdriver on the screw and utilize the accurate measurement result displayed on the display screen to obtain the magnitude of the torque, and adjust the accurate pretightening of the screwdriver on the screw to enhance the pretension accuracy of the screwdriver on the screw, so that the pretightening performance of the screw to be tightened is better; and thus, the assembled product has the advantages of higher quality, more reliable performance, higher application safety and longer service life.
Description
Technical field
The present invention relates to a kind of torque tool, relate in particular to a kind of digital display screwdriver for accurate measurement and fastening pretension.
Background technology
Along with China, from manufacturing big country to the Mode change of manufacturing power, enterprise more and more payes attention to the connector pretension effect in the assembling product process, and especially the small-sized moment of torsion of precise treatment is controlled to the critical process for quality monitoring.Pretension process torque tool used is to the future development of intellectuality, miniaturization, precise treatment and easy to useization, and the torque tool of accurately controlling as small moment of torsion and little moment of torsion seems even more important.
At present, on China market, torque tool fastening, that detect Screw used be take the mechanical type torque screwdriver as main, and the torque screwdriver of mechanical type adopts slipping formula structural principle to realize the purpose of trip bolt.When the moment of measuring bolt, the torque screwdriver acted on screw can produce moment of torsion.The size of the moment of torsion produced when the mechanical type torque screwdriver reaches the setting torque value, the torque screwdriver warning of will skidding, and the prompting bottle opener has reached the purpose of trip bolt.
The inventor, when realizing with the fastening Screw of mechanical type torque screwdriver, finds that the mechanical type torque screwdriver at least has the following disadvantages: the one, and the pretension low precision of mechanical type torque screwdriver; The 2nd, the poor repeatability of mechanical type torque screwdriver tightening torque.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of digital display screwdriver, convert torque signal by the moment of torsion that runner assembly is produced to through sensor, and then pass through electronic building brick by the torque signal switching electrical signals and shown by electronic building brick, reached the size of accurate measurement moment of torsion and the purpose of pretension screw.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of digital display screwdriver is provided, comprises runner assembly, commutation assembly, electronic building brick, sensor, power supply and handle; Described handle inside is provided with accommodation space, and described commutation assembly, sensor and on-chip power are in described accommodation space; Described runner assembly is fixedly connected with the commutation assembly, and described sensor is fixedly connected with the described electronic building brick of described runner assembly and is connected with sensor, and described power supply is connected with sensor electrical by electronic building brick; The torque axis that described sensor will gather the runner assembly generation changes transducing signal into and passes to described electronic building brick, described electronic building brick comprises the circuit board for the treatment of transducing signal, for the display screen that shows torque parameter with for showing the indicator lamp of prefastening torque size; Described circuit board is electrically connected to respectively described display screen and described indicator lamp.
Wherein, described electronic building brick also comprises control button, and described control button comprises shift knob for controlling electronic building brick energising or outage and for controlling the function button of display screen display mode.
Wherein, described runner assembly comprises screwdriver rod and turning cylinder, and described screwdriver rod is connected with turning cylinder.
Wherein, an end of described turning cylinder is provided with the mortise for being connected with screwdriver rod, and the other end of turning cylinder connects described commutation assembly by bearing pin.
Wherein, the bottom of described mortise is provided with for adsorbing the magnet of screwdriver rod.
Wherein, described commutation assembly comprises reversing shaft, commutation piece and bearing; Described commutation piece is for controlling the direction of rotation of runner assembly, and the commutation piece is fixedly connected with described reversing shaft; Described reversing shaft is fixed in described handle by bearing.Wherein, described handle inboard is provided with hole, is provided with the pin for being connected with sensor in described hole.
Wherein, described power supply is dry cell or lithium battery.
Wherein, described handle end is provided with the battery cover be connected with positive source.
Wherein, in described battery cover, the lateral wall of connecting handle is provided with external screw thread, on described handle madial wall, correspondingly is provided with internal thread, and described external screw thread and internal thread are suitable.
Useful technique effect of the present invention is: the pretension low precision and the fastening screw prefastening torque poor repeatability of mechanical type torque screwdriver that are different from prior art mechanical type torque screwdriver, the invention provides a kind of digital display screwdriver, change torque signal into and adopt electronic building brick to convert torque signal to the signal of telecommunication by the torque axis that adopts sensor that runner assembly is produced, and by the display screen in electronic building brick, torque value is obtained to the big or small pretension degree that shows and reflect screw by greenish-yellow red three kinds of colors of same indicator lamp.Greenish-yellow red three kinds of colors that the operator can utilize same indicator lamp to show are learnt the pretension degree of moment of torsion, and regulate bottle opener to the preliminary pretension of screw and utilize display screen to show that result after accurately measuring learns the size of torque value, and the adjusting bottle opener is to the accurate pretension of screw, and can be kept in memory and communicate with host computer the torque value storage of trip bolt, whether the tightening torque of each screw of intelligent decision is qualified, improved bottle opener to screw pretension precision, make to need the pretension more excellent performance of fastening screw, simultaneously also increased the repeatability of the fastening screw prefastening torque of bottle opener, thereby make the quality of assembled product more superior, more reliable performance, use safer and the life-span is longer.
The accompanying drawing explanation
Fig. 1 is the sectional structure chart of digital display screwdriver of the present invention;
Fig. 2 is the appearance assumption diagram of digital display screwdriver of the present invention;
Fig. 3 is the structure chart of turning cylinder in digital display screwdriver runner assembly of the present invention;
Fig. 4 is the commutation assembly assumption diagram of digital display screwdriver of the present invention.
Label declaration:
The 1-runner assembly, the 2-assembly that commutates, 3-electronic building brick, 4-sensor, 5-handle, 6-power supply, the 7-battery cover, 11-magnet, 12-turning cylinder, 13-tooth post, the 21-piece that commutates, 22-back-moving spring, 23 bearings, 24-limited block, 25-reversing shaft, 26-steel ball, 31-display screen, 32-control button.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, a kind of digital display screwdriver of the present invention, comprise runner assembly 1, commutation assembly 2, electronic building brick 3, sensor 4, power supply 6 and handle 5; Described handle 5 inside are provided with accommodation space, and described commutation assembly 2, sensor 4 and power supply 6 are fixed in described accommodation space, and the commutation assembly is located at the front end of accommodation space, and power supply is located at the rear end of accommodation space, between commutation assembly and power supply, is provided with sensor; Described runner assembly 1 is fixedly connected with commutation assembly 2, and described sensor 4 is fixedly connected with described runner assembly 1, and described electronic building brick 3 is connected with sensor 4, and described power supply 6 is electrically connected to sensor 4 by electronic building brick 3; The torque axis that described sensor 4 will gather runner assembly 1 generation changes transducing signal into and passes to described electronic building brick 3, described electronic building brick 3 comprises the circuit board for the treatment of transducing signal, for the display screen 31 that shows torque parameter with for showing the indicator lamp of prefastening torque size; Described circuit board is electrically connected to respectively described display screen 31 and described indicator lamp.
To on runner assembly, produce moment of torsion after acting on the rotatable handle that needs fastening screw, runner assembly transmits described moment of torsion by moment of torsion and passes to the sensor be fixedly connected with the assembly that commutates, described sensor changes into the signal of telecommunication by described torque axis, after the described signal of telecommunication is sent to electronic building brick, after electronic building brick carries out Intelligent treatment to the described signal of telecommunication, the torque value of rotatable handle is presented on LCDs, complete the requirement of accurate measurement moment of torsion, electronic building brick also can the greenish-yellow red three kinds of colors by same indicator lamp show the degree size of pretension simultaneously.If need the torque value of fastening screw to be greater than measured value, now indicator lamp is green, can continue to tighten screw; If need the torque value of fastening screw to reach the job requirement of moment of torsion, now indicator lamp is yellow, does not need screw is carried out to fastening processing; If need the torque value of fastening screw to surpass the job requirement of moment of torsion, now indicator lamp is red, needs to change screw, and to requiring fastening screw to carry out duplicate measurements, to reach best fastening effect.
The present invention is different from pretension low precision and the fastening screw prefastening torque poor repeatability of mechanical type torque screwdriver of prior art mechanical type torque screwdriver, the invention provides a kind of digital display screwdriver, change torque signal into and adopt electronic building brick to convert torque signal to the signal of telecommunication by the torque axis that adopts sensor that runner assembly is produced, and by the display screen in electronic building brick, torque value is obtained to the big or small pretension degree that shows and reflect screw by greenish-yellow red three kinds of colors of same indicator lamp.Greenish-yellow red three kinds of colors that the operator can utilize same indicator lamp to show are learnt the pretension degree of moment of torsion, and regulate bottle opener to the preliminary pretension of screw and utilize display screen to show that result after accurately measuring learns the size of torque value, and the adjusting bottle opener is to the accurate pretension of screw, and can be kept in memory and communicate with host computer the torque value storage of trip bolt, whether the tightening torque of each screw of intelligent decision is qualified, improved bottle opener to screw pretension precision, make to need the pretension more excellent performance of fastening screw, simultaneously also increased the repeatability of the fastening screw prefastening torque of bottle opener, thereby make the quality of assembled product more superior, more reliable performance, use safer and the life-span is longer.
Consult Fig. 2, in a preferred embodiment, described electronic building brick 3 also comprises control button 32, and described control button 32 comprises shift knob for controlling electronic building brick energising or outage and for controlling the function button of display screen display mode; Shift knob plays the effect of controlling electronic building brick energising or outage, digital display screwdriver act on some do not need precision measure and fastening pretension screw the time, the effect of electronic building brick performance is very little, and relatively power consumption.Under the circumstances, shift knob is set on digital display screwdriver very necessary.The consumption of saving the digital display screwdriver power supply and the effect of optimizing digital display screwdriver have been played for the shift knob of controlling electronic building brick.Control button can be controlled the display mode of display screen, and display mode can be divided into real-time mode and tracing mode etc., and so-called real-time mode refers to that the shown torque value size of display screen is 0 when the moment of torsion that acts on screw disappears; Described tracing mode refers to that, when acting on the moment of torsion disappearance of screw, torque value size or the size of the torque value of first pre-test that display screen is shown, be convenient to record torque value.The setting of shift knob and control button can be optimized the structure of digital display screwdriver, makes the application of digital display screwdriver more convenient.
Consult Fig. 3, in a specific embodiment, described runner assembly 1 comprises screwdriver rod and turning cylinder 12, described screwdriver rod is connected with turning cylinder 12, one end of described turning cylinder 12 is provided with the mortise for being connected with screwdriver rod, the bearing pin of the other end of turning cylinder is provided with tooth post 13, and connects described commutation assembly by tooth post 13; The rotary shaft end that is provided with mortise can facilitate being connected of turning cylinder and screwdriver rod, the cross section of mortise is square, the corner angle of mortise and corner angle proportioning for the screwdriver rod end of connection of rotating axle, reach the fixing effect at the turning cylinder Plane of rotation of screwdriver rod and turning cylinder; Described mortise also can be arranged to cylindrical with groove; the projection of groove position and screwdriver rod is complementary; reach the fixing effect at the Plane of rotation of turning cylinder of screwdriver rod and turning cylinder; mortise is not limited to this with the embodiment of design for the screwdriver rod end of connection of rotating axle, so long as meet screwdriver rod and turning cylinder in the fixing effect of the Plane of rotation of turning cylinder all in protection scope of the present invention.The bottom of described mortise is provided with the magnet 11 for adsorbing screwdriver rod, the setting of magnet is to overcome mortise and the deficiency of screwdriver rod at the horizontal plane vertical with above-mentioned Plane of rotation, screwdriver rod is ferrous material, the bottom that will be located at the magnet of ferrous material absorption mortise can make up the deficiency of turning cylinder and the stressed joint of screwdriver rod on horizontal plane, prevent the screwdriver rod of digital display screwdriver with before turning cylinder effect screw with act on screw after separating.The described screwdriver rod end contacted with screw is yi word pattern or cross etc., the screwdriver rod end contacted with screw, difformity for different screw nuts is set as the shape be complementary with it, to realize that digital display screwdriver is to the torque measurement pretension of different screws and the effect of fastening pretension.
Consult Fig. 4, in a specific embodiment, described commutation assembly 2 comprises reversing shaft 25, commutation piece 21 and bearing 23; Described commutation piece 21 is for controlling the direction of rotation of runner assembly, and commutation piece 21 is fixedly connected with described reversing shaft 25; Described reversing shaft 25 is fixed in described handle by bearing 23.Commutation piece 21 is provided with the limited block 24 for fixing the rotatory axis tooth post, and commutation piece 21 also is provided with for controlling limited block between reversing shaft 25 is combined with the tooth post and the back-moving spring 22 separated, and the inside of reversing shaft also is provided with the steel ball 26 for the turning cylinder orientation; Digital display screwdriver by limited block 24 the tooth post on turning cylinder be combined and separate real its forward and reverse switching controls fast, therefore, the commutation assembly guarantees efficiently for the digital display screwdriver trip bolt provides reliable.
In a specific embodiment, described sensor is strain gauge transducer, and sensor is the requisite part of the present invention, and strain gauge can convert the torque signal that can be processed by electronic building brick to according to large young pathbreaker's torque value of torque value.
In a specific embodiment, described handle 5 inboards are provided with hole, be provided with the pin for being connected with sensor in described hole, by pin and being connected of sensor reaching better fastening effect, also can reach by other fastening means the fastening purpose of pin and sensor.
In a preferred embodiment, described power supply 6 is dry cell or lithium battery.More preferably scheme is to select the lithium battery of environmental protection, and the Performance Ratio of lithium battery is better, and power-on time is pressed long, and can use by recharge.Be provided with the accommodation space for placing battery in described handle, the end that accommodation space is relative with battery cover is provided with the negative electrode terminal that is connected with the negative pole of power supply, the rear end of described handle correspondingly is provided with battery cover 7, be provided with in battery cover 7 with the positive pole of power supply and be connected positive electrode terminal, power supply is powered to electronic building brick by positive electrode terminal and negative electrode terminal, the madial wall of described handle 5 is provided with the sheet metal with the positive electricity end sub-connection of battery cover, the material of sheet metal is copper or iron etc., it can be also metal alloy compositions, sheet metal is to shorten the distance of positive electrode terminal and negative electrode terminal.The outside of connecting handle is provided with external screw thread in described battery cover, and described handle inwall correspondingly is provided with internal thread, and described external screw thread and internal thread are suitable, the card by external screw thread and internal thread and reached battery cover and the purpose of handle stressed joint.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (8)
1. a digital display screwdriver, is characterized in that, comprises runner assembly, commutation assembly, electronic building brick, sensor, power supply and handle; Described handle inside is provided with accommodation space, and described commutation assembly, sensor and power supply are fixed in described accommodation space;
Described runner assembly is fixedly connected with the commutation assembly, described sensor is fixedly connected with described runner assembly, described electronic building brick is connected with sensor, described power supply is connected with sensor electrical by electronic building brick, wherein, described runner assembly comprises screwdriver rod and turning cylinder, and described screwdriver rod is connected with turning cylinder; Described commutation assembly comprises reversing shaft, commutation piece and bearing; Described commutation piece is for controlling the direction of rotation of runner assembly, and the commutation piece is fixedly connected with described reversing shaft; Described reversing shaft is fixed in described handle by bearing, and described commutation piece is provided with for fixing the limited block of rotatory axis tooth post, and the commutation piece also is provided with for controlling limited block between reversing shaft is combined and the back-moving spring separated with the tooth post;
The torque axis that described sensor will gather the runner assembly generation changes transducing signal into and passes to described electronic building brick, described electronic building brick comprises the circuit board for the treatment of transducing signal, for the display screen that shows torque parameter with for showing the indicator lamp of prefastening torque size; Described circuit board is electrically connected to respectively described display screen and described indicator lamp.
2. digital display screwdriver according to claim 1, is characterized in that, described electronic building brick also comprises control button, and described control button comprises shift knob for controlling electronic building brick energising or outage and for controlling the function button of display screen display mode.
3. digital display screwdriver according to claim 1, is characterized in that, an end of described turning cylinder is provided with the mortise for being connected with screwdriver rod, and the other end of turning cylinder connects described commutation assembly by bearing pin.
4. digital display screwdriver according to claim 3, is characterized in that, the bottom of described mortise is provided with for adsorbing the magnet of screwdriver rod.
5. digital display screwdriver according to claim 1, is characterized in that, described handle inboard is provided with hole, is provided with the pin for being connected with sensor in described hole.
6. digital display screwdriver according to claim 1, is characterized in that, described power supply is dry cell or lithium battery.
7. digital display screwdriver according to claim 6, is characterized in that, described handle end is provided with the battery cover be connected with positive source.
8. digital display screwdriver according to claim 7, is characterized in that, in described battery cover, the lateral wall of connecting handle is provided with external screw thread, on described handle madial wall, correspondingly is provided with internal thread, and described external screw thread and internal thread are suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110325798 CN102431001B (en) | 2011-10-24 | 2011-10-24 | Digital display screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110325798 CN102431001B (en) | 2011-10-24 | 2011-10-24 | Digital display screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102431001A CN102431001A (en) | 2012-05-02 |
| CN102431001B true CN102431001B (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110325798 Ceased CN102431001B (en) | 2011-10-24 | 2011-10-24 | Digital display screwdriver |
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| CN (1) | CN102431001B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015284A (en) * | 2014-04-23 | 2015-11-04 | 陈锵镐 | Digital measurement tool |
| CN107681412B (en) * | 2016-08-01 | 2019-03-29 | 北京遥感设备研究所 | A kind of radio frequency (RF) coaxial connector assembly tool with torque |
| CN108858014B (en) * | 2018-07-20 | 2020-10-20 | 宁波市鸿博百捷自动化设备有限公司 | Manual universal screwdriver |
| TWI683731B (en) * | 2019-05-21 | 2020-02-01 | 美之嵐機械工業有限公司 | Mechanical gas/electric screwdriver torque display device |
| CN110434788A (en) * | 2019-09-04 | 2019-11-12 | 温州一鼎仪器制造有限公司 | Digital-display torque bottle opener |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2491187Y (en) * | 2001-06-21 | 2002-05-15 | 黄秉文 | Improved ratchet screwdriver |
| US7055415B1 (en) * | 2003-01-23 | 2006-06-06 | Pilling Weck Incorporated | Screwdriver assembly and method with torque measuring scale |
| US7014023B1 (en) * | 2003-04-17 | 2006-03-21 | Gauthier Biomedical, Inc. | No-play ratchet construction |
| US20070000356A1 (en) * | 2005-06-29 | 2007-01-04 | Professional Tool Products, Llc. | Ratcheting device |
| US7225708B2 (en) * | 2005-08-30 | 2007-06-05 | Hsin-Nien Chen | Ratchet tool having smooth engaging member |
| CN101468460A (en) * | 2007-12-26 | 2009-07-01 | 谢智庆 | Multi-colour alarm module of electronic torsion tool |
| CN201544172U (en) * | 2009-09-03 | 2010-08-11 | 深圳市同力达精密工具有限公司 | Digital-display torque wrench |
| US8714057B2 (en) * | 2010-01-04 | 2014-05-06 | Apex Brands, Inc. | Ratcheting device for an electronic torque wrench |
| CN102205527B (en) * | 2011-05-30 | 2013-04-03 | 深圳清华大学研究院 | Screwdriver capable of wirelessly transmitting torque value |
-
2011
- 2011-10-24 CN CN 201110325798 patent/CN102431001B/en not_active Ceased
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| Publication number | Publication date |
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| CN102431001A (en) | 2012-05-02 |
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