CN106181768A - A kind of medical polisher mill bar clamp structure - Google Patents
A kind of medical polisher mill bar clamp structure Download PDFInfo
- Publication number
- CN106181768A CN106181768A CN201610845688.2A CN201610845688A CN106181768A CN 106181768 A CN106181768 A CN 106181768A CN 201610845688 A CN201610845688 A CN 201610845688A CN 106181768 A CN106181768 A CN 106181768A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- steel ball
- mill bar
- sleeve pipe
- polisher
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The present invention provides a kind of medical polisher to grind bar clamp structure, including first sleeve (2), second sleeve pipe (3), pushing block (42), tapered sleeve (41) and steel ball (5), second sleeve pipe (2) is provided with the under shed diameter slotted eye (8) less than upper shed, steel ball (5) is arranged in slotted eye (8), tapered sleeve socket and the second sleeve pipe being slidably connected with it, for carrying out spacing to steel ball (5), pushing block is used for promoting tapered sleeve to move.This clamp structure can put on the rigidity power that mill bar is axially vertical to steel ball, the vibration produced when not havinging polisher work and the pressure problem that causes steel ball offset of mill pole pair steel ball, it is to avoid due to the abrasion of three lobe chuck endoporus increase and the blocking of cutting object and cause the skidding of mill bar, not clamping, pull out occur without as.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of medical polisher mill bar clamp structure.
Background technology
The method of clamping of conventional medical polisher mill bar typically has two kinds of basic modes, and one is three lobe chucks, Yi Zhongshi
Steel ball clamps:
Three lobe chucks are the most frequently used method of clamping, use the polishing nose of this kind of mode to generally comprise flexible three lobe folders
Head, the most threaded back stay, the stage clip being sleeved on back stay, it is sleeved on the long body etc. outside three.During work,
The transmission of its motion-promotion force parameter such as torque, rotating speed is dependent between the bore area of elastic three lobe chucks and the clamping part of mill bar
Frictional force complete.Therefore the thickness of clamping part, the abrasion of three lobe chuck endoporus increases and the blocking of cutting object is the most direct
Affect clamping effect, to such an extent as to also exist in real work skidding, not clamping, pull out occur without as.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of medical polisher to grind bar clamp structure, uses wedge shape
Snap ring and circular slotted eye limit steel ball position, by rigidity power clamping mill bar, due to pressure or vibrations during preventing from using
Produce steel ball skew and then cause grinding the phenomenon that bar loosens.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of medical polisher mill bar clamp structure, including polisher body, first sleeve, the second sleeve pipe, retaining mechanism,
Steel ball, power transmission shaft and mill bar；Described power transmission shaft is coaxially connected with mill bar, is provided with by Limit Bearing coupled outside mill bar
Mill bar set；Described first sleeve includes radial dimension spider one, spider two and spider three ascending, that be sequentially coaxially connected,
The inner wall of end of described spider three is connected with power transmission shaft outer wall by clutch shaft bearing, described spider one outer wall and mill bar set inwall spiral shell
Stricture of vagina is connected, and described mill bar is through the opening of spider one, and the bulge loop that described spider three is arranged with polisher body leans；Polisher
Power transmission shaft stretch into the shaft outer wall of first sleeve and be provided with spacing ring；Described power transmission shaft and the transmission of mill bar composition, the second set
Pipe is the most sequentially coaxially arranged with first sleeve, and one end of described second sleeve pipe leans with limited block, described second set
The other end of pipe through first sleeve and is connected by the second bearing with the mill bar set of polisher；Described mill bar is with power transmission shaft even
The one end connect is provided with annular groove；
On the tube wall of described second sleeve pipe, the position of corresponding annular groove is provided with at least one slotted eye, and described steel ball is arranged on groove
In hole, the bottom opening diameter of slotted eye is less than the diameter of steel ball, and the axial length of slotted eye is less than the diameter of steel ball；Steel ball highlights groove
The part of hole bottom opening coordinates with grinding annular groove set on bar；
Described retaining mechanism includes that one coordinates with the second cannula slide and for steel ball carries out spacing tapered sleeve, Yi Jishe
Put on first sleeve outer wall and for the pushing block promoting tapered sleeve to slide backward；One end inwall that described tapered sleeve contacts with steel ball is
Conical surface horn structure, the described horn structure opening size near second bearing one end is more than the opening near clutch shaft bearing one end
Size, described tapered sleeve other end inwall is tubular structure, and described tapered sleeve outer wall is provided with convex annular edge；Described spider two outer wall is symmetrical
It is provided with waist hole, described pushing block is provided through the projection in waist hole, when the mobile tapered sleeve of needs, be provided with inside described projection and annular
The projection that convex edge coordinates, described convex annular is along being less than protruding along the second quill along the length sum that the second sleeve pipe is axial with projection
To length；
Described second sleeve pipe is provided with spacing preiection near one end of power transmission shaft, is provided with set between described spacing preiection and tapered sleeve
The first spring being located on the second sleeve outer wall.
As preferably, described spider two outer wall is provided with the second spring for promoting pushing block return, described second spring
Two ends offset with pushing block and spider three respectively.
As preferably, the open top diameter of described slotted eye is equal to the diameter of steel ball, and the bottom of slotted eye is mutually pasted with steel ball
Close.
As preferably, one end that described second sleeve pipe (3) and limited block (61) lean and power transmission shaft (6) interference fit.
As preferably, one end of described mill bar is provided with insertion rod, and power transmission shaft is provided with the blind hole matched with insertion rod.
The invention has the beneficial effects as follows:
1, use steel ball clamp structure, effectively solve the blocking of wear and tear increase and cutting object of three lobe chuck endoporus all
Directly affect clamping effect, to such an extent as to also exist in real work skidding, not clamping, pull out the problem occurring without elephant.
2, using tapered sleeve to carry out spacing to steel ball, steel ball, by the rigid pressure axially vertical with mill bar, does not haves and beats
The problem that the vibration produced during grinding machine work and the pressure of mill pole pair steel ball cause steel ball to offset, improves polishing precision.
3, the open top diameter of slotted eye is less than the diameter of steel ball equal to the diameter of steel ball, the bottom opening diameter of slotted eye,
Bottom is bonded to each other with steel ball, effectively defines the movement position of steel ball, and in conjunction with beneficial effect 2, the pressure suffered by steel ball is complete
Portion is rigid pressure, there is not position offset problem.
4, retaining mechanism is divided into tapered sleeve and pushing block two parts, and is promoted its return by the first spring and the second spring respectively,
When the second spring extends to maximum position, the projection on pushing block along separating with convex annular set on tapered sleeve, had both facilitated and had promoted
Moving after tapered sleeve, the most do not affect when polisher works, rotary shaft drives the second sleeve pipe to bear extra frictional resistance when rotating.
5, mill bar is snap fit with the connected mode of power transmission shaft, and power transmission shaft only provides the turning moment output of mill bar, can
To realize power output to greatest extent.
Accompanying drawing explanation
Fig. 1 is that structural representation held by the one medical polisher mill bar cramp of the embodiment of the present invention.
Fig. 2 is that the embodiment of the present invention grinds rod rear end structural representation.
Fig. 3 is embodiment of the present invention first sleeve sectional view.
Fig. 4 is the embodiment of the present invention the second sleeve pipe sectional view.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, the one medical polisher mill bar clamp structure that the present invention provides, polisher body 1, the
Sleeve the 2, second sleeve pipe 3, retaining mechanism 4, steel ball 5, power transmission shaft 6 and mill bar 7；Power transmission shaft 6 is coaxially connected with mill bar 7, grinds bar 7
Outside is provided with the mill bar set 9 coupled by Limit Bearing 71；First sleeve 2 includes that radial dimension is ascending, same successively
Spider 1, spider 2 22 and the spider 3 23 that axle is connected, the inner wall of end of described spider 3 23 is by clutch shaft bearing 13 and biography
Moving axis 6 outer wall is connected, and spider 1 outer wall overlaps 9 inner threads with mill bar and is connected, and mill bar 7 is through the opening of spider 1, spider
3 23 with polisher body 1 arrange bulge loop lean；The power transmission shaft 6 of polisher stretches into the shaft outer wall of first sleeve 2 and is provided with
Spacing ring 61；Described power transmission shaft 6 and the transmission of mill bar 7 composition, the second sleeve pipe 3 are with first sleeve 2 the most sequentially coaxially
Arrange, one end of the second sleeve pipe 3 leans with limited block 61, the other end of the second sleeve pipe 3 pass first sleeve 2 and with polishing
The mill bar set 9 of machine is connected by the second bearing 14；One end that mill bar 7 is connected with power transmission shaft 6 is provided with annular groove 10；
The position of the upper corresponding annular groove 10 of the second sleeve pipe 3 is provided with at least one slotted eye 8；Steel ball 5 is arranged in slotted eye 8,
The bottom opening diameter of slotted eye 8 less than the diameter of steel ball 5, the open top diameter of slotted eye 8 equal to the diameter of steel ball 3, steel ball 5 with
The bottom of slotted eye 8 is bonded to each other, and steel ball 5 highlights the annular groove 10 that the part of bore is set with on mill bar 7 in slotted eye 8 and coordinates.
Retaining mechanism 4 include one and second sleeve pipe 3 be slidably matched and for steel ball 5 is carried out spacing tapered sleeve 41 and
It is arranged on first sleeve 2 outer wall and for the pushing block 42 promoting tapered sleeve 41 to slide backward；One end that tapered sleeve 41 contacts with steel ball 5
Inwall is conical surface horn structure, and the horn structure opening size near second bearing 14 one end is more than near clutch shaft bearing 13 one end
Opening size, tapered sleeve 41 other end inwall is tubular structure, and tapered sleeve 41 outer wall is provided with convex annular along 411；Described spider 2 22
Outer wall is arranged with waist hole 24, pushing block 42 is provided through the projection 421 in waist hole 24, is provided with and convex annular edge inside protruding 421
411 projections 4211 coordinated, convex annular is less than protruding 421 edges with projection 4211 along the length sum that the second sleeve pipe 3 is axial along 411
The length that second sleeve pipe 3 is axial；
Second sleeve pipe 3 is provided with spacing preiection 31 near one end of power transmission shaft 6, is provided with set between spacing preiection 31 and tapered sleeve 41
It is located at the first spring 11 on the second sleeve pipe 3 outer wall.
Spider 2 22 outer wall is provided with the second spring 12 for promoting pushing block 42 return, the two ends of the second spring 12 respectively with
Pushing block 42 and spider 3 23 offset.
One end of mill bar 7 is provided with insertion rod 72, and described power transmission shaft 6 is provided with the blind hole matched with insertion rod 72.
When installing mill bar, user promotes pushing block 42 to first sleeve 3 rear end, and pushing block 42 is by the protruding phase with convex edge
Interaction promotes tapered sleeve 41 to be moved rearwards by, and due to the horn structure of tapered sleeve 41, steel ball 5 is gradually reduced by downward pressure.When
When pushing block 42 is moved rearwards by reaching its range, inserts mill bar, unclamp pushing block 42, pushing block and tapered sleeve and receive the second spring respectively
With the active force return of the first spring, due to the horn structure of tapered sleeve 41, steel ball is pressed in slotted eye, and then tapered sleeve is at the first bullet
Reach is continued, until the cylindrical portions of tapered sleeve covers slotted eye, it is achieved the location to steel ball under the active force of spring.
Dismounting is ground during bar identical with when installing, and to promoting pushing block, makes tapered sleeve unclamp the compressing to steel ball, then can extract out
Mill bar.
The part not illustrated in description is prior art or common knowledge.The present embodiment is merely to illustrate this invention,
Rather than restriction the scope of the present invention, the equivalent replacement that those skilled in the art are made for the present invention etc. is revised and is all considered
Fall in this invention claims institute protection domain.
Claims (5)
1. a medical polisher mill bar clamp structure, including polisher body (1), first sleeve (2), the second sleeve pipe (3), lock
Tight mechanism (4), steel ball (5), power transmission shaft (6) and mill bar (7)；Described power transmission shaft (6) is coaxially connected with mill bar (7), and mill bar (7) is outward
Side is provided with mill bar set (9) coupled by Limit Bearing (71)；Described first sleeve (2) include radial dimension by little to
Spider one (21), spider two (22) and the spider three (23) greatly, being sequentially coaxially connected, the inner wall of end of described spider three (23) leads to
Crossing clutch shaft bearing (13) to be connected with power transmission shaft (6) outer wall, described spider one (21) outer wall is connected with mill bar set (9) inner thread,
Described mill bar (7) is through the opening of spider one (21), and the bulge loop that described spider three (23) and polisher body (1) are arranged offsets
Lean on；The power transmission shaft (6) of polisher stretches into the shaft outer wall of first sleeve (2) and is provided with spacing ring (61)；Described power transmission shaft (6) and mill
Transmission, the second sleeve pipe (3) that bar (7) forms the most sequentially coaxially are arranged with first sleeve (2), described second sleeve pipe
(3) one end leans with limited block (61), and the other end of described second sleeve pipe (3) passes first sleeve (2) and polisher
Mill bar set (9) by the second bearing (14) connect；One end that described mill bar (7) is connected with power transmission shaft (6) is provided with annular groove (10)；
It is characterized in that:
On the tube wall of described second sleeve pipe (3), the position of corresponding annular groove (10) is provided with at least one slotted eye (8), described steel ball
(5) being arranged in slotted eye (8), the bottom opening diameter of slotted eye (8) is less than the diameter of steel ball (5), and the axial length of slotted eye (8) is little
Diameter in steel ball (5)；The part set annular groove (10) upper with mill bar (7) of prominent slotted eye (8) bottom opening of steel ball (5) is joined
Close；
Described retaining mechanism (4) include one and second sleeve pipe (3) be slidably matched and for steel ball (5) is carried out spacing tapered sleeve
And be arranged on first sleeve (2) outer wall and be used for the pushing block (42) promoting tapered sleeve (41) to slide backward (41)；Described tapered sleeve
(41) one end inwall contacted with steel ball (5) is conical surface horn structure, and described horn structure is near the second bearing (14) one end
Opening size is more than the opening size near clutch shaft bearing (13) one end, and described tapered sleeve (41) other end inwall is tubular structure,
Described tapered sleeve (41) outer wall is provided with convex annular edge (411)；Described spider two (22) outer wall is arranged with waist hole (24), described pushing block
(42) being provided through the projection (421) of waist hole (24) on, when mobile tapered sleeve (41) of needs, described projection (421) inner side is provided with
The projection (4211) coordinated along (411) with convex annular, described convex annular edge (411) and projection (4211) are along the second sleeve pipe (3) axle
To length sum less than protruding (421) along the axial length of the second sleeve pipe (3)；
Described second sleeve pipe (3) is provided with spacing preiection (31), described spacing preiection (31) and tapered sleeve near one end of power transmission shaft (6)
(41) the first spring (11) being set on the second sleeve pipe (3) outer wall it is provided with between.
One the most according to claim 1 medical polisher mill bar clamp structure, it is characterised in that: described spider two (22)
Outer wall is provided with the second spring (12) for promoting pushing block (42) return, the two ends of described second spring (12) respectively with pushing block
(42) offset with spider three (23).
One the most according to claim 2 medical polisher mill bar clamp structure, it is characterised in that: described slotted eye (8)
Open top diameter is equal to the diameter of steel ball (3), and the bottom of slotted eye (8) is bonded to each other with steel ball (5).
One the most according to claim 4 medical polisher mill bar clamp structure, it is characterised in that: described second sleeve pipe
(3) one end leant with limited block (61) and power transmission shaft (6) interference fit.
5. grind bar clamp structure according to the medical polisher of one described in 1～4 any one claim, it is characterised in that: institute
The one end stating mill bar (7) is provided with insertion rod (72), and described power transmission shaft (6) is provided with the blind hole matched with insertion rod (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845688.2A CN106181768B (en) | 2016-09-23 | 2016-09-23 | A kind of medical sander mill bar clamp structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845688.2A CN106181768B (en) | 2016-09-23 | 2016-09-23 | A kind of medical sander mill bar clamp structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181768A true CN106181768A (en) | 2016-12-07 |
| CN106181768B CN106181768B (en) | 2018-09-25 |
Family
ID=58068165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610845688.2A Expired - Fee Related CN106181768B (en) | 2016-09-23 | 2016-09-23 | A kind of medical sander mill bar clamp structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106181768B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771036A (en) * | 2019-03-15 | 2019-05-21 | 上海电气集团股份有限公司 | End effector device |
| CN115070612A (en) * | 2022-07-12 | 2022-09-20 | 深圳市加逸科技有限公司 | Take polisher quick-operation joint of pressure release adjustment structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161421Y (en) * | 1993-08-04 | 1994-04-13 | 吴幸辰 | Minisize grinding machine |
| DE10151935C1 (en) * | 2001-07-24 | 2003-03-06 | Gison Machinery Co | Speed adjusting device for a pneumatic tool especially a grinder includes a disc which is pushed backwards by slide members by centrifugal force when tool speeds are excessive |
| CN201046138Y (en) * | 2007-06-13 | 2008-04-16 | 郭毅军 | Medical flexible axle drive milling handle |
| CN202446186U (en) * | 2012-02-17 | 2012-09-26 | 重庆西山科技有限公司 | Grinding/drilling head clamping mechanism of medical grinding/drilling hand piece |
| CN203210169U (en) * | 2013-01-25 | 2013-09-25 | 鸿特机械发展(上海)有限公司 | Double-extension-rod clamping device of honing cutter |
| CN206154108U (en) * | 2016-09-23 | 2017-05-10 | 武汉多可特医疗器械有限公司 | Medical polisher grinding pin clamping structure |
-
2016
- 2016-09-23 CN CN201610845688.2A patent/CN106181768B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161421Y (en) * | 1993-08-04 | 1994-04-13 | 吴幸辰 | Minisize grinding machine |
| DE10151935C1 (en) * | 2001-07-24 | 2003-03-06 | Gison Machinery Co | Speed adjusting device for a pneumatic tool especially a grinder includes a disc which is pushed backwards by slide members by centrifugal force when tool speeds are excessive |
| CN201046138Y (en) * | 2007-06-13 | 2008-04-16 | 郭毅军 | Medical flexible axle drive milling handle |
| CN202446186U (en) * | 2012-02-17 | 2012-09-26 | 重庆西山科技有限公司 | Grinding/drilling head clamping mechanism of medical grinding/drilling hand piece |
| CN203210169U (en) * | 2013-01-25 | 2013-09-25 | 鸿特机械发展(上海)有限公司 | Double-extension-rod clamping device of honing cutter |
| CN206154108U (en) * | 2016-09-23 | 2017-05-10 | 武汉多可特医疗器械有限公司 | Medical polisher grinding pin clamping structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771036A (en) * | 2019-03-15 | 2019-05-21 | 上海电气集团股份有限公司 | End effector device |
| CN109771036B (en) * | 2019-03-15 | 2021-10-29 | 上海电气集团股份有限公司 | End effector device |
| CN115070612A (en) * | 2022-07-12 | 2022-09-20 | 深圳市加逸科技有限公司 | Take polisher quick-operation joint of pressure release adjustment structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106181768B (en) | 2018-09-25 |
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Granted publication date: 20180925 Termination date: 20200923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |