CN201795883U - Dynamic clamping force testing device for high-speed air turbine hand piece - Google Patents
Dynamic clamping force testing device for high-speed air turbine hand piece Download PDFInfo
- Publication number
- CN201795883U CN201795883U CN2010201239712U CN201020123971U CN201795883U CN 201795883 U CN201795883 U CN 201795883U CN 2010201239712 U CN2010201239712 U CN 2010201239712U CN 201020123971 U CN201020123971 U CN 201020123971U CN 201795883 U CN201795883 U CN 201795883U
- Authority
- CN
- China
- Prior art keywords
- prod
- mandrel
- piston rod
- clamping force
- mobile phone
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a dynamic clamping force testing device for a high-speed air turbine hand piece, which belongs to the technical field of medical equipment manufacturing. The dynamic clamping force testing device for a high-speed air turbine hand piece is mainly technically characterized in that a testing stick device consists of a rotating piece portion and a connecting portion, the rotating piece portion is provided with a mandrel arranged inside a casing, a magnetic core is arranged in the mandrel, a testing stick is fixedly arranged at one end of the magnetic core while the other end is connected with a helicoidal in a contacting manner, a bearing is arranged between the mandrel and the casing, the connecting portion consists of the helicoidal arranged at one end of a clamping block, a connector is arranged at the other end of the clamping block, and the connector is connected with the clamping block in a rolling manner by a rotary shaft. A loading device is provided with a cavity which is arranged inside a cylinder, a piston rod is arranged in the cavity by the aid of a spring, and an abrasion-resistant stick is fixedly arranged at one end of the piston rod. The dynamic clamping force testing device has the advantages of simple structure, convenience for operation and capabilities of simulating clinical treatment to realize dynamic test for clamping force of a hand piece by detecting the clamping force of the hand piece in a working state, and leading factory hand pieces to be safer and more reliable in use.
Description
One, technical field
The utility model relates to a kind of dental handpiece dynamic checkout unit, specifically a kind of high speed air turbine mobile phone dynamic clamp force test device.Belong to manufacture technology field of medical appliance.
Two, background technology
High speed air turbine mobile phone be for department of stomatology clamping high speed dental sewing machine needle bore tooth, operation medicine equipment such as grind one's teeth in sleep.In the treatment mouth disease, high speed air turbine mobile phone is with greater than 300, the speed running of 000rpm, the reliability and stability of its clamping car pin, be directly connected to doctor and patient's security, particularly the holding force in high speed rotating is extremely important, can guarantee provides safe and reliable treatment mobile phone to the doctor, existing mobile phone holding force test is independently the holding force in the clamping device in the mobile phone to be tested with the push-and-pull dynamometer before installing mostly, or directly carries out static test with spring balance handle machine prod.Their structure is made up of anchor clamps two parts of push-and-pull dynamometer (spring balance) and fixed clamp device (mobile phone) substantially.Its feature is convenient and swift, but shortcoming is to differ greatly with environment for use, the stressed influence to holding force in the different structure clamping device in the time of can not testing out operating handset.Seriously lose contact with reality, do not meet the requirement of ISO7785-1, the product that produces can not obtain the approval of international community.
Present domestic dental high-speed mobile phone manufacturing industry roughly has two kinds of methods when the holding force of check mobile phone:
1) directly test the holding force of high speed air turbine mobile phone core part with dynamometer, lock after promptly giving movement installation testing rod, fixedly movement is pulled out prod with dynamometer, writes down maximal value.
2) under the off working state, prod is directly installed on the high speed air turbine mobile phone, directly pulls out prod, write down its maximal value with dynamometer.
Above dual mode is tested the test that is under quiescent conditions to holding force, can't simulate the state of doctor's actual holding force in the treatment patient.
Three, utility model content
The purpose of this utility model is to overcome existing dental handpiece holding force proving installation can only be in testing mobile phone holding force under the static state, can not be in conjunction with dynamic environment for use testing mobile phone holding force, make mobile phone holding force and doctor's practical effect of test that certain error be arranged, thereby a kind of new technical scheme is provided.
For achieving the above object, the utility model can be realized by following technical scheme:
A kind of high speed air turbine mobile phone dynamic clamp force test device, it is to be fixed with casing on base plate, be provided with push-and-pull dynamometer, speed measuring device, draw-off gear, charger and prod device on casing, charger comes the size of control loaded power by the accurate voltage regulating valve.The prod device is to be made of prod mechanism and coupling part, prod mechanism is provided with mandrel and bearing in housing, in mandrel, be provided with magnetic core and prod, wherein mandrel, magnetic core and prod three relative fixed are connected, mandrel is by the connection of rolling mutually of bearing and housing, housing and bung flange are by being threaded, and the cross sectional shape of described bung flange is the T font; Prod mechanism is connected with fixture block in the coupling part by T font bung flange, and fixture block is connected with connector by rotating shaft, and connector is connected with the push-and-pull dynamometer by screw thread; Charger is to be provided with spring and piston rod in the cavity of cylinder body, and piston rod one end is fixed with abrasion-proof stick, and an end of the inner chamber body of described cylinder body is provided with and connects mouth.
Cavity in the charger in the cylinder body is L shaped; The abrasion-proof stick that fixedly is located at the piston rod upper end is a platform valency axis body shape, and it is connected with piston rod by nut.
The utility model is holding force is tested under dynamical state, and compared with prior art the advantage that is had is: the simulation clinical treatment, can detect the holding force of mobile phone in working order, and make the mobile phone of producing use safer.The magnetic induction speed probe shows the mobile phone rotating speed synchronously, adopts being connected of prod and dynamometer high-speed bearing to realize pulling in the rotation, adopts the charger of design to reach conveniently adjusted flexibility and loads; Adopt cylinder to realize automatic drawing action; Draw-off gear is guaranteed the automatic capturing concentricity problem in the high speed rotating.Its design concept is to simulate the process of doctor the treatment patient fully, promptly simulates clinical oral treatment environment and tests accordingly, to reach the effect of actual use.
Four, description of drawings
Accompanying drawing 1 is a kind of example structure synoptic diagram of the utility model;
Accompanying drawing 3 is the utility model prod device 5 sectional structure synoptic diagram.
Five, embodiment
Now with specific embodiment the utility model is described in further details in conjunction with the accompanying drawings:
A kind of high speed air turbine mobile phone dynamic clamp force test device, it mainly comprises push-and-pull dynamometer 1, speed measuring device 2, draw-off gear 3, charger 4 and prod device 5.Maximal value when adopting push-and-pull dynamometer 1 record prod to come off; The speed measuring device 2 that the magnetic induction speed probe constitutes shows high speed air turbine mobile phone rotating speed synchronously; Draw-off gear 3 adopts cylinder to realize automatic drawing action; Prod device 5 realizes that by connector 24 pulling is connected with push-and-pull dynamometer 1.
High speed handpiece adds dynamically that to hold force tester be the method that requires according to ISO7785-1, the test product mobile phone when loading running clamping device to the size of the holding force of car pin.
Structure of the present utility model and principle of work are:
1.) draw-off gear 3: testing mobile phone is fixed on on the cylinder with anchor clamps, realizes the drawing process of mobile phone test rod 15 with cylinder.Realize resetting of mobile phone and pull out process that the adjusting by pressure regulator valve can realize " slowly drawing " process with toggle switch.
2.) charger 4: owing to want first radial loaded to make the mobile phone rotating speed reduce to initial speed at least more than 50% in the test process, at this moment begin pull-out test rod 15.High speed handpiece strength is little, the rotating speed sensitivity, need can step-less adjustment loading force size flexible charger 4, the utility model is adjusted the loading force size by easily changeable abrasion-proof stick 6 on the stingy cylinder band of design by the accurate voltage regulating valve.Only need toggle switch cylinder inner spring 10 that loading bar is returned during unloading.
Charger 4 is to be provided with cavity in cylinder body 12, is provided with piston rod 11 by spring 10 in cavity, and piston rod 11 1 ends are fixed with abrasion-proof stick 6, and the other end communicates with cavity, and an end of the inner chamber body of described cylinder body 12 is provided with and connects mouth 14.
When connecing mouth 14, the pressurized air edge of certain pressure P enters in cylinder body 12 cavitys, because an end is provided with plug 13 in cavity, the other end is provided with O shape circle 9, be at two ends under the condition of sealing, in cylinder body 12 cavitys, piston rod 11 is produced an outside pressure and be made as F, promote spring 10 compressions in the piston rod 11 outside motion processes, spring 10 generation below bung flange 8 is spacing, and bung flange 8 is by screw thread and cylinder body 12 relative fixed.Therefore 10 pairs of piston rods of spring 11 produce a rightabout power and are made as f.Effect lower piston rod 11 in F and two power of f moves upward along the A1 direction, and an abrasion-proof stick 6 is inlayed in piston rod 11 front portions, by nut 7 piston rod 11 and abrasion-proof stick 6 is fixed together, and begins to load when abrasion-proof stick 6 contacts with prod 15, and loading force is made as F
1This moment abrasion-proof stick 6 stressed balances that reach.
F＝f+F
1
F=PS (S is o shape circle sealing place sectional area)
F=kx (k is the coefficient of stiffiness of spring, and x is the decrement of spring)
The size of big or small P adjustable force F by regulating admission pressure, under the condition that condition is determined, the value of k, x all is constant.So finely tune the pressure size P of air inlet with regard to fine-tuning F by the accurate voltage regulating valve
1Size, slow down and to reach suitable value to satisfy mobile phone.
Because whole loading procedure is to realize loading by air pressure and spring force synergy abrasion-proof stick 6, belong to flexible and load, solved in the rigidity loading and be difficult to the problem that trace is regulated the loading force size.
Abrasion-proof stick 6 is step axles, embeds in piston rod 11 front hole, is connected with piston rod 11 and compresses by step nut 7.The step nut 7 of outwarding winding during replacing is extracted abrasion-proof stick 6 and is got final product.
The utility model can be realized the flexible charger of step-less adjustment loading force size and be the designed prod device of drawing in the realization high speed rotating.
3.) the prod device 5: prod 15 wants high speed rotating will be connected with push-and-pull dynamometer 1 on the one hand on the one hand, and this device is installed high-speed bearing 20 by a housing 18 and realized spinfunction.Connect fixture block 22 and solve the decentraction problem, and solve the drawing problem with prod 15, housing 18.A magnetic core 17 is installed in prod 15 is used for responding to the mobile phone rotating speed.
Therefore the thrust in the automatic record of the push-and-pull dynamometer 1 meeting loading process or the maximal value of pulling force can write down maximum grip power value when the prod device 5 of mobile phone breaks away from mobile phones.
Draw-off gear 3 is that anchor clamps that design voluntarily are fixed on one in cylinder, tested mobile phone is loaded onto prod device 5 be fixed on the anchor clamps, and is corresponding with the groove of clamp 22 " T " font at bung flange 21 rear portions like that.Promote anchor clamps to the logical pressurized air of cylinder and separate with prod device 5, reach the purpose of extracting, reset to the anchor clamps of ventilating in the other direction when resetting together with mobile phone.Only need change nylon jacket when test different head standard mobile phone gets final product.
5) speed measuring device 2: show on the test board digital board with high-frequency magnetic induction sensor synchronism detection mobile phone rotating speed.
Drawing function during the unique prod device 5 of employing is realized running up, and the speed measuring device 2 that can allow speed sensor constitute is sensed the rotating speed of prod 15.This device is to inlay a kicker magnet in the mandrel 16 by one and prod 15 coaxial rotations.Mandrel 16 is installed bearing and is connected with fixture block 22 with push-and-pull dynamometer 1 by housing 18, to guarantee the drawing in prod 15 high speed rotating.Connect fixture block 22 simultaneously and prod 15 devices leave enough gaps, the decentraction problem when preventing to assemble is guaranteed accuracy of test.
Charger 4 is by having designed a small cylinder, and cylinder bar front is designed to the high-abrasive material that can be convenient for changing.Control the loading force of cylinder by accurate air pressure regulator and realize step-less adjustment.The speed that realizes mobile phone is reduced at least 50%.And realize flexible the loading.
Claims (2)
1. high speed air turbine mobile phone dynamic clamp force test device, it is to be fixed with casing on base plate, on casing, be provided with push-and-pull dynamometer (1), speed measuring device (2), draw-off gear (3), charger (4) and prod device (5), charger (4) comes the size of control loaded power by the accurate voltage regulating valve, it is characterized in that: prod device (5) is to be made of prod mechanism and coupling part, prod mechanism is provided with mandrel (16) and bearing (20) in housing (18), in mandrel (16), be provided with magnetic core (17) and prod (15), mandrel (16) wherein, magnetic core (17) is connected with prod (15) three's relative fixed, mandrel (16) is by the connection of rolling mutually of bearing (20) and housing (18), housing (18) and bung flange (21) are by being threaded, and the cross sectional shape of described bung flange (21) is the T font; Prod mechanism is connected with fixture block (22) in the coupling part by T font bung flange (21), and fixture block (22) is connected with connector (24) by rotating shaft (23), and connector (24) is connected with push-and-pull dynamometer (1) by screw thread; Charger (4) is to be provided with spring (10) and piston rod (11) in the cavity of cylinder body (12), and piston rod (11) one ends are fixed with abrasion-proof stick (6), and an end of the inner chamber body of described cylinder body (12) is provided with and connects mouth (14).
2. high speed air turbine mobile phone dynamic clamp force test device according to claim 1 is characterized in that: the cavity in the charger (4) in the cylinder body (12) is L shaped; The abrasion-proof stick (6) that fixedly is located at piston rod (11) upper end is a platform valency axis body shape, and it is connected with piston rod (11) by nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201239712U CN201795883U (en) | 2010-02-26 | 2010-02-26 | Dynamic clamping force testing device for high-speed air turbine hand piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201239712U CN201795883U (en) | 2010-02-26 | 2010-02-26 | Dynamic clamping force testing device for high-speed air turbine hand piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795883U true CN201795883U (en) | 2011-04-13 |
Family
ID=43850789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201239712U Expired - Fee Related CN201795883U (en) | 2010-02-26 | 2010-02-26 | Dynamic clamping force testing device for high-speed air turbine hand piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424251A (en) * | 2015-12-21 | 2016-03-23 | 苏州研高自动化科技有限公司 | Double-station torsion test device |
| CN105716768A (en) * | 2016-03-30 | 2016-06-29 | 上海威克鲍尔通信科技有限公司 | Device for automatically detecting electric coupler contact retention force |
| CN109186840A (en) * | 2018-08-03 | 2019-01-11 | 温州鼎仪器制造有限公司 | Swing type digital display tensiometer |
-
2010
- 2010-02-26 CN CN2010201239712U patent/CN201795883U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424251A (en) * | 2015-12-21 | 2016-03-23 | 苏州研高自动化科技有限公司 | Double-station torsion test device |
| CN105424251B (en) * | 2015-12-21 | 2018-08-03 | 苏州研高自动化科技有限公司 | A kind of double-station torque test device |
| CN105716768A (en) * | 2016-03-30 | 2016-06-29 | 上海威克鲍尔通信科技有限公司 | Device for automatically detecting electric coupler contact retention force |
| CN109186840A (en) * | 2018-08-03 | 2019-01-11 | 温州鼎仪器制造有限公司 | Swing type digital display tensiometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267613B (en) | A kind of mechanical sealing performance tester | |
| CN101354296B (en) | Fabric three-dimensional pressure simulation test system | |
| CN100570300C (en) | A kind of measuring method and measuring instrument of indirect measurement matched bearings pretightning force | |
| CN101915708B (en) | Bionic examination robot for physical properties of food and examination method thereof | |
| CN202676121U (en) | Coaxiality measurer for mandrel three-level excircles | |
| CN201795883U (en) | Dynamic clamping force testing device for high-speed air turbine hand piece | |
| CN203310388U (en) | Automatic detecting and sorting instrument for wheel hub runout | |
| CN103438807A (en) | High-pressure pilot-operated type pneumatic electromagnetic-valve valve element displacement measurement device and method | |
| CN108180812A (en) | A kind of bearing radial internal clearance measuring device and measuring method | |
| CN201331402Y (en) | Thrust bearing dynamic tester | |
| CN205373744U (en) | Intention of shifting sensor detecting system | |
| CN101701894B (en) | Test system of spindle-type magnetorheological fluid performance | |
| CN205981686U (en) | Wheel hub bearing rigid test machine | |
| CN202477681U (en) | Optical fiber sensor-based digestive tract pressure measuring device for medical clinic | |
| CN2879151Y (en) | Measuring device for axletree bearing force | |
| CN207816588U (en) | Contactless electro spindle reliability test bench | |
| CN202676119U (en) | Coaxality detector | |
| CN201689006U (en) | Pulling and twisting composite testing machine for high-intensity bolt | |
| CN202133548U (en) | Loading device for oversize rotating disk bearing performance testing machine | |
| CN202582795U (en) | Homotaxial tension-compression standard dynamometer being shaped as Chinese character 'ya' | |
| CN104154845B (en) | A kind of device measuring matched bearings end-play and measuring method | |
| CN103123257B (en) | Intake and exhaust valve oil seal inward flange cubing and detection method thereof | |
| CN115290252A (en) | Electronic sphygmomanometer service life testing method and device thereof | |
| CN2765167Y (en) | Torque tester for paired-mounting tapered roller bearing | |
| CN201323536Y (en) | Pre-pressure automatic control device for ultrasonic motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |