CN101664872A - Tightening device and control method thereof - Google Patents
Tightening device and control method thereof Download PDFInfo
- Publication number
- CN101664872A CN101664872A CN200910307036A CN200910307036A CN101664872A CN 101664872 A CN101664872 A CN 101664872A CN 200910307036 A CN200910307036 A CN 200910307036A CN 200910307036 A CN200910307036 A CN 200910307036A CN 101664872 A CN101664872 A CN 101664872A
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- China
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- sensor
- tightening device
- torque sensor
- static torque
- power set
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Abstract
The invention relates to a tightening device comprising a power device, a static torque sensor and a torque wrench, wherein the power device is connected with the static torque sensor; and the statictorque sensor is connected with the torque wrench. The tightening device utilizes the static torque sensor to overcome the encircling problem of the signal transmission line thereof, thus greatly saving cost and having higher torque precision. The invention also relates to a control method of the tightening device.
Description
Technical field
The present invention relates to a kind of tightening device, particularly a kind of controllable torque formula tightening device and control method thereof of utilizing torque sensor to realize torque measurement and control.
Background technology
Tight-fitting machine is the tightening device that the most frequently used a kind of fastening workpiece is used in mechanism's processing.The power set of general tight-fitting machine are motor, and the driven by motor reductor rotates, and reductor drives spanner again and rotates, thereby reach the purpose of fastening workpiece, and wherein adopt dynamic torque sensor usually for the control of moment of torsion.Dynamic torque sensor is a kind of unit that torque axis on the torsion bar is changed into the signal of telecommunication.Common torque sensor uses potentiometer, and the mode that adopts machinery to contact is touched the potentiometer current potential and changed.Specifically, when the torsion bar rotation produced moment of torsion, the annulus that drives the below connection moved up and down, and the annulus that moves up and down drives the potentiometer rotation again.On potentiometer, add constant voltage, just produced a voltage that changes with change in torque.But, because traditional torque sensor potentiometer, annulus and fixed wall constantly rubs, often rotate potentiometer, annulus and all can produce wearing and tearing, greatly reduce the service life of sensor, the precision of torque sensing also can be affected simultaneously.Therefore need frequent replacing torque sensor, thereby increased equipment cost and production cost.
Summary of the invention
In order to solve prior art tightening device cost height, the life-span is short, precision is low problem, be necessary to provide the tightening device that a kind of cost is low, the life-span is long, precision is high.
Also be necessary to provide a kind of control method of above-mentioned tightening device.
The invention provides a kind of tightening device, comprise power set, static torque sensor and tighten spanner, power set link to each other with static torque sensor, static torque sensor with tighten spanner and link to each other.
In tightening device of the present invention, the near-end of static torque sensor signal transmission line rotates with sensor, and far-end is fixed
In tightening device of the present invention, the far-end of static torque sensor signal transmission line is connected to outer computer by fairlead
In tightening device of the present invention, the reductor axle head is equipped with screw mandrel and nut, tightens the corner extreme position by primary importance sensor and the control of second place sensor.
In tightening device of the present invention, power set are made up of drive motors and reductor.
In tightening device of the present invention, thereby this controller can improve machining accuracy by the rotating speed of this driving wheel of control.
In tightening device of the present invention, reductor is connected with static torque sensor by gear.
A kind of control method of above-mentioned tightening device comprises starting these power set; These power set drive this static torque sensor and tighten spanner; This tightens this static torque sensor sensing the moment of torsion of spanner and can send the moment of torsion data to outer computer.
Compared to prior art, tightening device of the present invention and control method thereof are utilized the static torque sensor and the fairlead of this controller, and utilize the static torque sensor to avoid the wearing and tearing of torque sensor potentiometer in the prior art, this fairlead well solved feed-through collar in the torque sensor rotary course around problem.
Compared to prior art, tightening device of the present invention and control method thereof are utilized the static torque sensor and the fairlead of this controller, and utilize the static torque sensor to avoid the wearing and tearing of torque sensor potentiometer in the prior art, this fairlead well solved feed-through collar in the torque sensor rotary course around problem.Because static torque sensor cost is low, does not have brush, the life-span can improve more than 20 times; Do not have the contact resistance of variation, improved accuracy of detection; Thereby greatly reduce the cost of tightening device of the present invention, improved service life, and improved accuracy of detection.Tightening device control method of the present invention utilizes the static torque sensor of above-mentioned tightening device to detect dynamic torque, has realized the tightening device control that the low-cost life-span is long.
Description of drawings
Fig. 1 is the structural representation of tightening device one better embodiment of the present invention.
Fig. 2 is the internal structure schematic diagram of controller shown in Figure 1.
The specific embodiment
Below in conjunction with diagram controllable torque formula tightening device of the present invention is specifically described.
Seeing also Fig. 1, is the structural representation of controllable torque formula tightening device one better embodiment of the present invention.This tightening device 10 comprise drive motors 101, reductor 102, fairlead 103,, tighten spanner 104, controller 20.This drive motors 101 and this reductor 102 constitute the power set of this tightening device 10.
Please consulting Fig. 2 simultaneously, is the internal structure schematic diagram of controller 20 shown in Figure 1.This controller 20 comprises static torque sensor 201, signal transmssion line 202, follower 21, driving wheel 22, locator 204, primary importance sensor 207, second place sensor 208, first adjuster 205 and second adjuster 206.This torque sensor 201 is static torque sensors.
This drive motors 101 connects this reductor 102.This reductor 102 connects this driving wheel 22.This driving wheel 22 and this reductor 102 are positioned at same rotating shaft.Reductor 102 axle heads are equipped with screw mandrel and nut.This driving wheel 22 and these follower 21 engagements, thus transfer torque to this follower 21, the rotation under driving wheel 22 drives of this follower 21.Static torque sensor 201 and this follower 21 are positioned at same rotating shaft, thereby static torque sensor 201 and follower 21 rotate simultaneously.
Static torque sensor 201 lower ends with tighten spanner 104 and link to each other, tighten spanner 104 and rotate with static torque sensor 201.
During work, the torque signal of spanner 104 is passed to static torque sensor 201, and static torque sensor 201 is converted into the signal of telecommunication to torque signal by transmission line 202 outputs.The near-end of this signal transmssion line 202 is connected with this torque sensor 201, and rotates with torque sensor 201.Transmission line 202 far-ends are connected to computer by fairlead 103, closely rotate with torque sensor 201, and far-end is fixed.This signal transmssion line 202 reverses in the number of turns limited at fairlead 103 intorts during work, and transmission line can't damage and occur distorted signals.
This locator 204 is equipped with screwed hole and is connected with screw rod 209, these locator 204 meeting upper and lower displacements when this driving wheel 22 rotates, this primary importance sensor 207 and this second place sensor 208 are connected to computer, it is limited one for respectively this locator 204 and moves up and down scope, promptly realize the control of the driving wheel 22 corner limit, control the corner limit range of spanner 104 indirectly.
When this locator 204 when this primary importance sensor 207 moves down, spanner 104 also begins to tighten workpiece, arrives when setting moment of torsion to stop operating, and spanner breaks away from is twisted workpiece, motor 101 counter-rotatings, locator 204 moves up and arrives sensor 207 places and stops operating.Second place sensor 208 is used to tighten security standpoint limit control, works as thread damage, when locator 204 moves to second place sensor 208, sends control signal and controls this drive motors 101 and stop operating.
This tightening device 10 can be by the torque value of computer and workpiece processing request input setting, and controller 20 can tighten at workpiece and detect change in torque in the process, the precision of control torque.
Compared to prior art, tightening device 10 of the present invention comprises this controller 20, this controller comprises this static torque sensor 201 and fairlead 103, adopt static torque sensor 201 to avoid the wearing and tearing of torque sensor in the prior art, and utilize this fairlead 103 well solved signal transmssion line in the torque sensor rotary course around problem, thereby greatly reduce the cost of tightening device of the present invention, prolonged service life, and can be good at realizing the control of precision.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. tightening device, it is characterized in that: comprise power set, static torque sensor and impact wrench, power set and static torque sensor link, and static torque sensor links to each other with impact wrench.
2. tightening device as claimed in claim 1 is characterized in that: the near-end of static torque sensor signal transmission line rotates with sensor, and far-end is fixed.
3. tightening device as claimed in claim 2 is characterized in that: the far-end of static torque sensor signal transmission line is connected to outer computer by fairlead.
4. tightening device as claimed in claim 1, it is characterized in that: power set comprise reductor, the reductor axle head is equipped with screw mandrel and nut, tightens the corner extreme position by primary importance sensor and the control of second place sensor.
5. tightening device as claimed in claim 1 is characterized in that: power set are made up of drive motors and reductor.
6. tightening device as claimed in claim 5 is characterized in that: reductor is connected with static torque sensor by gear.
7. tightening device control method, this tightening device comprise power set, static torque sensor and tighten spanner, and power set and static torque sensor link, static torque sensor with tighten spanner and link to each other, this method comprises:
Start this power set;
These power set drive this static torque sensor and tighten spanner;
This tightens this static torque sensor sensing the moment of torsion of spanner and can send the moment of torsion data to outer computer.
8. tightening device control method as claimed in claim 7 is characterized in that: the near-end of the signal transmssion line of this static state torque sensor rotates with sensor, and far-end is fixed.
9. tightening device control method as claimed in claim 7 is characterized in that: these power set comprise reductor, and the reductor axle head is equipped with screw mandrel and nut, tighten the corner extreme position by primary importance sensor and the control of second place sensor.
10. tightening device control method as claimed in claim 9, it is characterized in that: when this locator when this primary importance sensor is moved down into the position of this second place sensor, this second place sensor detects the position of this locator and sends control signal and control this drive motors and stop and backward rotation, so this locator upwards resets to this primary importance sensor place, this primary importance sensor sent control signal and made this drive motors quit work this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103070363A CN101664872B (en) | 2009-09-15 | 2009-09-15 | tightening device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103070363A CN101664872B (en) | 2009-09-15 | 2009-09-15 | tightening device and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101664872A true CN101664872A (en) | 2010-03-10 |
| CN101664872B CN101664872B (en) | 2012-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103070363A Expired - Fee Related CN101664872B (en) | 2009-09-15 | 2009-09-15 | tightening device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101664872B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249208A (en) * | 2018-08-20 | 2019-01-22 | 湖州职业技术学院 | A kind of torque control mechanism of fastener automatic assembling machine people's dynamical system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699873A (en) * | 2012-05-09 | 2012-10-03 | 江苏亚洲气体设备有限公司 | Liquefied petroleum gas bottle valve handling machine with functions of torque controlling and angle phase positioning |
-
2009
- 2009-09-15 CN CN2009103070363A patent/CN101664872B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249208A (en) * | 2018-08-20 | 2019-01-22 | 湖州职业技术学院 | A kind of torque control mechanism of fastener automatic assembling machine people's dynamical system |
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| Publication number | Publication date |
|---|---|
| CN101664872B (en) | 2012-02-08 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20190915 |