CN104458095B - Blood purification consumptive material screw-down torque real-time detection apparatus - Google Patents
Blood purification consumptive material screw-down torque real-time detection apparatus Download PDFInfo
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- CN104458095B CN104458095B CN201410737500.3A CN201410737500A CN104458095B CN 104458095 B CN104458095 B CN 104458095B CN 201410737500 A CN201410737500 A CN 201410737500A CN 104458095 B CN104458095 B CN 104458095B
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- motor
- consumptive material
- blood purification
- cutting ferrule
- purification consumptive
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Abstract
The invention discloses a kind of blood purification consumptive material screw-down torque real-time detection apparatus, including motor, bearing, support, distance rod, block piece and power cutting ferrule, support is provided with the fixation cutting ferrule for being used for fixing blood purification consumptive material one end, bearing is fixedly installed on support, distance rod is connected with the motor body of motor and constitutes the rotatable assembly being supported on bearing, and power cutting ferrule is fixed on the line shaft of motor and is set to operate the part to be tightened of blood purification consumptive material；Support is provided with the block piece contacted with distance rod, and block piece is provided with the pressure sensor for detecting its pressure in real time.The detection means of the present invention realizes the real-time accurate detection of blood purification consumptive material screw-down torque, is not limited, is not limited by torque by motor rotary speed；It is subject to other to automatically control, it is possible to achieve the accurate control of moment of torsion, the field such as especially suitable Precision Machining and precision parts assembling.
Description
Technical field
The present invention relates to technical field of medical equipment, it particularly relates to which a kind of tighten torsion for blood purification consumptive material
Square real-time detection apparatus.
Background technology
Blood purification consumptive material is used for field of blood purification, and treatment category has been directed to kidney trouble, acute poisoning, hepatopathy, critical
Disease, skin disease and immunity disease etc..The blood purification consumptive material includes haemodialyser, blood perfusion device, blood plasma separation
Device etc..
The blood purification consumptive material includes nut or sets threaded end cap, sets threaded cylinder and block.It is described
Nut sets threaded end cap, sets threaded cylinder and block is detachably matched respectively.Mainly pass through craft at present
Mode is to nut or sets threaded end cap and is coupled with cylinder, block with end cap, the qualification pair of operating personnel
There is certain human factor influence in screw-down torque.In order that nut or setting threaded end cap and cylinder, block and end cap
Coupling well, raising production efficiency is necessary that offer is a kind of can accurately detect the detection means of screw-down torque in real time.
The method for the real-time Detection ＆ Controling of moment of torsion being currently known includes spring force detection method, hangs counterweight detection method, answers
Become piece detection method etc., and the method being controlled to screw-down torque then include overload disengage skidding method, predetermined torque release methods,
Force to release method, digital display alarm method etc..However, above-mentioned moment of torsion detection method and torque control method are suitable only for turning round
Square is smaller, required precision is not used under high condition, such as electric screwdriver.And require height simultaneously in precision optical machinery and moment of torsion control
And moment of torsion it is big in the case of can not then be applicable.
The content of the invention
The technical problems to be solved by the invention be drawbacks described above for prior art there is provided one kind can accurately and
The detection means of blood purification consumptive material screw-down torque is detected in real time, and accurate control blood purification consumptive material screw-down torque is carried simultaneously
High efficiency.
In order to solve the above technical problems, present invention employs following technical scheme：A kind of blood purification consumptive material is designed to twist
Tight moment of torsion real-time detection apparatus, including motor, bearing, support, distance rod, block piece and power cutting ferrule, the support are provided with
Fixation cutting ferrule for fixing blood purification consumptive material one end, the bearing is fixedly installed on the bracket, the distance rod with
The motor body of the motor is connected and constituted the rotatable assembly being supported on the bearing, and the power cutting ferrule is fixed
In the motor line shaft and be set to operate the part to be tightened of the blood purification consumptive material；The support, which is provided with, to be suitable to
Contact to stop block piece that the rotatable assembly rotates in the motor operations, the block piece position with the distance rod
In the position of the rotation axis preset distance away from the rotatable assembly, the block piece has detects its suffered thrust in real time
The pressure sensor of rod pressure.
The present invention be detect motor body it is counter push away moment of torsion by way of detect real-time moment of torsion that motor is exported.Its work
Make principle as follows：Motor body is positioned by bearing in the axial direction, but not fixation can be rotated freely in circumference, by motor sheet
The rotatable of body and distance rod composition total integral can rotate around the center line of motor power axle；Rotatable assembly uses block piece
It is spacing, to prevent rotatable assembly freely rotating in motor operations.Precision pressure sensor, pressure are installed on block piece
Sensor detects distance rod pressure applied in real time, according to the active force principle equal with reaction force, and the pressure, which is equal to, to be pushed away
The thrust that power bar is subject at pressure sensor, the thrust be multiplied by between pressure sensor and motor power shaft centre line away from
Anti- moment of torsion is pushed away from can calculate suffered by rotatable assembly；Finally further according to the equal principle of the positive and negative moment of torsion of balanced body, motor
The moment of torsion exported when tightening nut or threaded end cap i.e. be equal to above-mentioned rotatable assembly suffered by it is counter push away moment of torsion so that
Realize the real-time detection of blood purification consumptive material screw-down torque.
From such scheme, detection means of the invention realizes the real-time accurate inspection of blood purification consumptive material screw-down torque
Survey, do not limited, do not limited by torque by motor rotary speed；Be subject to other to automatically control, it is possible to achieve moment of torsion it is accurate
Control, the field such as especially suitable Precision Machining and precision parts assembling.
Further, the pressure sensor is contacted with the distance rod；Preferably, the pressure sensor is pushed away with described
End thereof contacts of the power bar away from the motor body.
Further, the rotatable assembly is supported on the bearing by the distance rod or the motor body.
Preferably, the motor is times in servo motor, stepper motor, electro-motor, air motor or hydraulic motor
Meaning is a kind of.
Further, the part to be tightened is nut, has threaded end cap or block.
Further, the axis of the line shaft, power cutting ferrule and fixed cutting ferrule is overlapped.
Further, the cavity shape of the power cutting ferrule and fixed cutting ferrule is identical with the shape of part to be tightened, size
Quite.
Further, the blood purification consumptive material screw-down torque real-time detection apparatus also includes automatic control system for torque,
The automatic control system for torque is electrically connected with the pressure sensor.
Brief description of the drawings
Fig. 1 is a kind of stereogram of embodiment of detection means of the present invention.
Fig. 2 is the front view of detection means described in Fig. 1.
Fig. 3 is the top view of detection means described in Fig. 1.
Fig. 4 is Fig. 3 A-A sectional views.
Embodiment
The various embodiments of the present invention are described more fully below, embodiment therein is described with reference to the drawings and under
Described in text.Although the present invention will be illustrated with reference to illustrative embodiments, it should be understood that the invention is not restricted to these examples
Property embodiment.On the contrary, the present invention not only includes these embodiments, but also including various modifications, improvement.
Fig. 1 to Fig. 4 shows a kind of embodiment of the blood purification consumptive material screw-down torque real-time detection apparatus of the present invention,
The device includes motor 1, bearing 3, support 4, distance rod 5, block piece 6 and power cutting ferrule 7 etc..Motor 1 includes line shaft 11
The cooperation that can be mutually rotated with motor body 12 with motor body 12, line shaft 11.Support 4 is by top plate 41, pillar 42 and bottom plate
43 grades are constituted, and pillar 42 is fixedly installed on bottom plate 43 and roof supporting 41.
Motor 1 can be any motor, such as servo motor, stepper motor, electro-motor, air motor or hydraulic motor
Deng.Bearing 3 is fixedly installed on the top plate 41 of support 4, distance rod 5 be fixedly installed on motor body 12 and with motor body 12 1
The rotatable assembly on bearing 3 is rotatably supported at composition.Power cutting ferrule 7 is fixed on the line shaft 11 of motor 1 away from horse
Up to the one end of body 12, the bottom plate 42 of support 4 is provided with fixed cutting ferrule 9, the line shaft 11, power cutting ferrule 7 and fixed cutting ferrule 9
Axis is overlapped, and preferably line shaft 11, power cutting ferrule 7 and fixed cutting ferrule 9 are arranged at the centre of bottom plate 42.
Blood purification consumptive material includes part to be installed, such as nut or sets threaded end cap, block.Screw thread is provided with
The end cap of screw thread is coupled in blood purification consumptive material two ends, and block on end cap away from blood purification consumptive material one end with coupling.It is described dynamic
The cavity shape of power cutting ferrule 7 and fixed cutting ferrule 9 and part to be tightened such as nut, set threaded end cap or block shape phase
Together, and size is suitable.The fixed cutting ferrule 9 is used to fix the lower end of blood purification consumptive material 8 part to be tightened, and power cutting ferrule 7 can be with
The upper end of blood purification consumptive material 8 part to be tightened engages to carry out tightening operation.
The block piece 6 is located on the top plate 41 of support 4, and has with the axis of the line shaft 11 of motor 1 position of preset distance
Put.Block piece 6 is provided with the pressure sensor 10 for detecting its pressure in real time, and the pressure sensor 10 and distance rod 5 are remote
From the end thereof contacts of motor body 12.The pressure sensor 10 is also electrically connected with automatic control system for torque.When motor 1 is connected
After power supply, because motor body 12 is not fixed in the circumferential, when line shaft 11 rotates in certain direction, the then edge of motor body 12
The opposite direction rotated with line shaft 11 to rotate, the output torque of line shaft 11 and the reactive torque size phase of motor body 12
Deng.Because distance rod 5 is fixedly installed on motor body 12, motor body 12 drives the unitary rotation of distance rod 5, until distance rod
5 contact with the pressure sensor 10 on block piece 6, and block piece 6 stops the rotation of distance rod 5, and now motor body 12 is reverse
Moment of torsion is delivered to the pressure sensor 10 of block piece 6 by distance rod 5.The pressure suffered by it is detected by pressure sensor 10
F, and distance rod 5 is measured from motor power shaft centre line 13 to the distance between pressure sensor 10 R (i.e. the power F arm of force),
Then according to P=F*R, the output torque P of motor 1 can just be calculated.Motor 1 will be identical by the power cutting ferrule 7 on line shaft 11
Output torque P put on part to be tightened.Operating personnel need to preset to tighten torsion P according to product0, that is, set pressure
The limiting value F of sensor 100, the conversion pressure that automatic control system for torque detects pressure sensor 10, and will into moment of torsion
Real-time moment of torsion P and pre-set limiting value P0Contrasted, when P is less than P0When, motor continues to tighten part to be tightened, with
The rotation of motor drive shaft, real-time moment of torsion P is increasing, when P is equal to P0When, moment of torsion robot control system(RCS), which sends signal instruction, stops motor
Rotation stop is moved, it is achieved thereby that the accurate control of screw-down torque, thus part to be tightened perfectly is coupled in blood purification consumptive material
Two ends, so as to improve the sealing of blood purification consumptive material, improve product qualification rate, reduce production cost.
When tightening part and tightening, one of them part to be tightened is positioned in fixed cutting ferrule 9 first, blood
The part to be tightened for purifying the lower end of consumptive material 8 and being positioned on fixed cutting ferrule 9 carries out pre-determined bit, and power cutting ferrule 7 clamps another
Starter motor 1 after the completion of part to be tightened and blood purification consumptive material upper end progress pre-determined bit, pre-determined bit, motor 1 passes through line shaft
Power cutting ferrule 7 on 11 puts on pre-set output torque P on the part to be tightened of its clamping, and it is tightened
Operation.According to above-mentioned principle, the pressure F suffered by it is detected by pressure sensor 10, and it is dynamic from motor to measure distance rod 5
Power shaft centre line 13 then according to P=F*R, just can be calculated and gone into action to the distance between pressure sensor 10 R (i.e. the power F arm of force)
Real-time output torque P when tightening nut up to 1.When the output torque P of motor 1 reaches value P set in advance0When, power cutting ferrule 7
On part to be tightened tightened with blood purification consumptive material two ends, coupling operational is completed, and motor stops operating.
Blood purification consumptive material screw-down torque real-time detection apparatus in the present invention can carry out blood purification consumptive material two ends simultaneously
Part to be tightened and cylinder automation tightening operation, improve production efficiency, improve the qualification rate of product, reduction is produced into
This.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (7)
1. blood purification consumptive material screw-down torque real-time detection apparatus, it is characterised in that：Including motor, bearing, support, distance rod,
Block piece and power cutting ferrule, the support are provided with the fixation cutting ferrule for being used for fixing blood purification consumptive material one end, and the bearing is consolidated
Fixed to set on the bracket, the distance rod is connected with the motor body of the motor and constitutes and be supported on the bearing
On rotatable assembly, the power cutting ferrule is fixed on the line shaft of the motor and is set to operate the blood purification consumptive material
Part to be tightened；The support, which is provided with, to be suitable to contact to stop the rotatable assembly in the motor with the distance rod
The block piece rotated during work, the block piece is located remotely from the position of the rotation axis preset distance of the rotatable assembly,
The block piece has the pressure sensor for detecting its suffered thrust rod pressure in real time；When detecting moment of torsion, the pressure sensing
Device and end thereof contacts of the distance rod away from the motor body, the rotatable assembly are static in the circumferential.
2. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：It is described to revolve
Turn assembly to be supported on the bearing by the distance rod or the motor body.
3. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：The motor
For any one in servo motor, stepper motor, electro-motor, air motor or hydraulic motor.
4. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：It is described to wait to twist
Tight part is nut, has threaded end cap or block.
5. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：The power
The axis of axle, power cutting ferrule and fixed cutting ferrule is overlapped.
6. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：The power
The cavity shape of cutting ferrule and fixed cutting ferrule is identical with the shape of part to be tightened, size is suitable.
7. blood purification consumptive material screw-down torque real-time detection apparatus according to claim 1, it is characterised in that：Also include turning round
Square automatic control system, the automatic control system for torque is electrically connected with the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737500.3A CN104458095B (en) | 2014-12-04 | 2014-12-04 | Blood purification consumptive material screw-down torque real-time detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737500.3A CN104458095B (en) | 2014-12-04 | 2014-12-04 | Blood purification consumptive material screw-down torque real-time detection apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104458095A CN104458095A (en) | 2015-03-25 |
| CN104458095B true CN104458095B (en) | 2017-08-29 |
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|---|---|---|---|
| CN201410737500.3A Active CN104458095B (en) | 2014-12-04 | 2014-12-04 | Blood purification consumptive material screw-down torque real-time detection apparatus |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH712564A1 (en) * | 2016-06-07 | 2017-12-15 | Rego-Fix Ag | Clamping device for clamping a tool in a tool holder. |
| CN106989861B (en) * | 2017-06-02 | 2019-06-07 | 北京航空航天大学 | A kind of measuring device based on hydraulic motor and torque sensor |
| CN108168762B (en) * | 2017-12-28 | 2020-11-10 | 四川中核艾瑞特工程检测有限公司 | Auxiliary device for measuring torque coefficient of bolt |
| CN109331269B (en) * | 2018-11-05 | 2024-06-28 | 贝恩医疗设备(广州)有限公司 | Dialyzer end cover screwing device |
| CN110514337A (en) * | 2019-08-15 | 2019-11-29 | 台州动林汽车空调压缩机有限公司 | A kind of riveting point position torque detecting apparatus of end cap |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3975299B2 (en) * | 2004-07-08 | 2007-09-12 | 前田金属工業株式会社 | Tightening torque measuring unit and torque display tightening machine |
| US7281438B2 (en) * | 2005-11-08 | 2007-10-16 | Vibrac Corporation | Torque measuring apparatus |
| JP4974643B2 (en) * | 2006-10-30 | 2012-07-11 | 前田金属工業株式会社 | Bolt / nut tightening device |
| CN202057445U (en) * | 2011-03-17 | 2011-11-30 | 李圣用 | Torque detector |
| CN203069307U (en) * | 2012-12-24 | 2013-07-17 | 洪燕萍 | Torque detecting device with power screwdriver |
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| CN104458095A (en) | 2015-03-25 |
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Address after: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee after: Jianfan Biotechnology Group Co., Ltd. Address before: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee before: Jafron Biomedical Co., Ltd. |
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