CN105726085A - Driving force transmission component and manufacturing method as well as bendable grinding head and medical grinding tool - Google Patents
Driving force transmission component and manufacturing method as well as bendable grinding head and medical grinding tool Download PDFInfo
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- CN105726085A CN105726085A CN201610242588.0A CN201610242588A CN105726085A CN 105726085 A CN105726085 A CN 105726085A CN 201610242588 A CN201610242588 A CN 201610242588A CN 105726085 A CN105726085 A CN 105726085A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1631—Special drive shafts, e.g. flexible shafts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B2017/1602—Mills
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention provides a driving force transmission component and a manufacturing method thereof as well as a bendable grinding head and a medical grinding tool consisting of the driving force transmission component, and belongs to the field of medical apparatus and instruments. The driving force transmission component comprises a first rotating force transmission part and a second rotating force transmission part, wherein one end of the first rotating force transmission part is connected with one end of the second rotating force transmission part through a cross shaft universal joint mechanism; a cutting groove which extends in a rotating axis direction of a rotating force transmission part is formed in one of the rotating force transmission parts, so that the probability that a shaft fork arm at an end part of the rotating force transmission part is broken when being assembled with a cross shaft can be reduced. The driving force transmission component is stable in transmission property and convenient to miniaturize.
Description
Technical field
The present invention relates to a kind of medical grinding tool and assembly thereof, specifically, relate to a kind of driving force transmitting assembly and manufacture method, and with the bendable bistrique of this driving force transmitting assembly structure, medical grinding tool.
Background technology
In bone surgery, grinding is carried out, it is common that bistrique stretches in human body and adopts power handle directly drive bistrique to carry out grinding, in operation process sometimes for internal osseous tissue, it is difficult to by external force, the grinding position of bistrique is controlled, causes surgical inefficiency.
In order to solve above-mentioned technical problem, prior art is to adopt bendable bistrique to coordinate with driving epitheca, to realize by external force, the grinding position of bistrique being controlled.Such as, notification number is a kind of surgical knife being easy to regulate cutter head bending degree, i.e. medical grinding tool disclosed in the patent documentation of CN204158459U.Shown in Fig. 1 to Fig. 5 in its Figure of description, this medical grinding tool includes bendable bistrique, drives epitheca, controls device 5 and power set.Bendable bistrique is made up of bistrique 31 and revolving force transmitting assembly, and revolving force transmitting assembly is made up of the first rotation force transmission element, connection rotating shaft 32 and the second rotation force transmission element 33, and the first rotation force transmission element and bistrique 31 are structure as a whole；Connection rotating shaft 32 is a dumbbell shape structure, including connecting rod and be located at the first spheric end on an axial end of this connecting rod and the second spheric end being located on another axial end, first spheric end is formed with output shaft along radially extending of connecting rod, second spheric end is formed with power shaft along radially extending of connecting rod, the axis of power shaft and the axis perpendicular of output shaft；First rotation force transmission element is formed with the first spherical groove matched with the first spheric end on the one end away from bistrique 31, the sidewall of the first spherical groove is formed the breach matched with output shaft；Second rotation force transmission element 33 is formed with the second spherical groove matched with the second spheric end near one end of connection rotating shaft, the sidewall of the second spherical groove is formed the breach matched with power shaft, is namely connected by cating nipple between the end of the first rotation force transmission element and the second rotation force transmission element 33.Drive epitheca to include bistrique pipe 12, outer cutter pipe 1 to be installed, controls pipe 6 and double-head hinge bar 13.When the rotation axis of relative second rotation force transmission element 33 of rotation axis at bistrique 31 folds an angle, namely the grinding position of bistrique 31 is changed, only the control mutually external cutter pipe 1 of pipe 6 need to be promoted to be axially moveable by controlling organization 5, and promote the bistrique installation mutually external cutter pipe 1 of pipe 12 to rotate by double-head hinge bar 13.
For the cating nipple adopted between above-mentioned first rotation force transmission element and the second rotation force transmission element, in order to reach corresponding bendable effect, requirement processes high-precision spheric end and spherical groove, and spheric end and spherical groove easily occur the problem of coming off in the course of the work, cause its structure to be difficult to microminiaturization and transmission stability is not high.Cause that it is difficult to the high request meeting existing Minimally Invasive Surgery to transmission stability with size.
Summary of the invention
The main purpose of the present invention is to provide a kind of medical bendable bistrique driving force transmitting assembly transmitting stability height and being easy to microminiaturization；
It is a further object of the present invention to provide a kind of method manufacturing above-mentioned driving force transmitting assembly；
It is a further object of the present invention to provide more than one and state the bendable bistrique that driving force transmitting assembly builds；
Another object of the present invention is to provide more than one and states the medical grinding tool that bendable bistrique builds.
In order to realize above-mentioned main purpose, medical bendable bistrique driving force transmitting assembly provided by the invention includes the first rotation force transmission element and the second rotation force transmission element, and one end of the first rotation force transmission element is connected with one end of the second rotation force transmission element by Hooke's joint mechanism.Hooke's joint mechanism includes the first yoke, cross axle and the second yoke, and cross axle includes contiguous block, has strong market potential and two short pins.The one end having strong market potential is through the first through hole being located on contiguous block and coordinates with this first via clearance, and the one end having strong market potential is fixing with a yoke of the first yoke to be connected, and another yoke of the other end and the first yoke is fixing to be connected.One end of two short pins and contiguous block are fixing to be connected, and the other end stretches into the axis hole being located on the second yoke yoke matched in clearance with it.The end of first rotation force transmission element one end is the first yoke, and the end of second rotation force transmission element one end is the second yoke.One end of second rotation force transmission element is formed with notch cutting groove of junction between the second yoke two yoke, the groove depth direction of this cutting groove extends along the direction being parallel to the second rotation force transmission element rotation axis, and runs through the second rotation force transmission element along the direction being perpendicular to this rotation axis.The two side of this cutting groove connects by position stator in the inner is fixing.
From above scheme, connecting the first rotation force transmission element and the second rotation force transmission element owing to have employed Hooke's joint mechanism, its rotatable engagement is axle and the coordinating of axis hole, it is easy to reach high-precision requirement, it is simple to processing.Owing to yoke can become fragile in adopting the fixing connection procedure of the modes such as welding and pin, and said structure adopts and is connected fixing to two yokes of the first yoke and the two ends having strong market potential, in the process of transmission revolving force, mutual tractive, effectively reduce yoke and the probability of fracture occurs because becoming fragile in transmission revolving force process, in order to the first rotation force transmission element is carried out microminiaturization.Owing to passing through to arrange a cutting groove on the second rotation force transmission element, effectively reduce its probability that fracture occurs in strutting the process loading short pin, in order to the second rotation force transmission element is carried out microminiaturization.Consequently facilitating driving force transmitting assembly is carried out microminiaturization；After processing cutting groove, the second rotation force transmission element also has part not cut and be connected so that cutting groove both sides wall body is easy to align with and is fixedly connected.Additionally, the pin in this structure is mutually orthogonal with rotation axis all the time with coordinating in the process of transmission revolving force of axis hole, it is not easy to the problem of coming off occurs, to improve the stability of its transmission.
One concrete scheme is contiguous block is cylinder, and this cylinder is formed through the second through hole of its both ends of the surface, this second through hole and cylinder coaxial arrangement.One end of short pin is stretched into the second through hole from the Single port of the second through hole and fixing with cylinder is connected；First through hole is along the cylindrical cylinder that extends transversely through, and the first through hole is positioned at cylindrical longitudinal direction and horizontal middle part.Improve the fixing contact surface between short pin and contiguous block, thus being effectively improved the threshold value of the unit volume transmission revolving force of cross axle, it is simple to driving force transmitting assembly carry out microminiaturization further, and the contiguous block of cylindrical shape is easy to processing.
Another concrete scheme is the groove width groove width more than other parts of the bottom of cutting groove.Making two yokes in strutting process, the flexural deformation of groove both sides wall body is concentrated mainly in the part of trench bottom, effectively ensures that the precision after being fixedly connected into one.
Another concrete scheme is that the first rotation force transmission element is fixing with the bistrique of bendable bistrique to be connected.Owing to, in bendable bistrique, the long rotating shaft that the length ratio fixing the short rotating shaft being connected with bistrique receives revolving force from power set is short much, and is located at by cutting groove in long rotating shaft, it is easier to process the cutting groove meeting requirement.
Another concrete scheme is be connected by welding manner is fixing between stator with the sidewall of cutting groove.It is easy to processing, and the fixing intensity connected is high.
Preferred scheme is the first rotation force transmission element being smaller in size than equal to 2 millimeters on the direction being perpendicular to its rotation axis.Second rotation force transmission element being smaller in size than equal to 2 millimeters on the direction being perpendicular to its rotation axis.
In order to realize above-mentioned another object, the present invention provides the method for the driving force transmitting assembly manufactured in any of the above-described technical scheme to include part procedure of processing, installation step and attaching step.Wherein, procedure of processing includes processing the first rotation force transmission element, the second rotation force transmission element, contiguous block by dimensional requirement, having strong market potential and short pin, adopts wire cutting method to process cutting groove on the second rotation force transmission element.Installation step includes being connected fixing to short pin and contiguous block, and the one end having strong market potential is sequentially passed through the axis hole being formed on the first yoke one yoke, first through hole, and it is formed at the axis hole on another yoke of the first yoke, and the two ends having strong market potential are connected by welding manner is fixing with the first yoke yoke；Strut two yokes of the second yoke, the free end of short pin is inserted in the axis hole on the second yoke yoke.Attaching step includes adopting stator to connect fixing for the two side of cutting groove.The method is easy to produce the driving force transmitting assembly that size is little.
Concrete scheme is in attaching step, adopts method for laser welding to be connected fixing with the two side of cutting groove for stator.Method is simply easy to processing, and bonding strength is high.
In order to realize above-mentioned another object, bendable bistrique provided by the invention includes driving force transmitting assembly and bistrique.Driving force transmitting assembly is the driving force transmitting assembly described by any of the above-described technical scheme.Bistrique and the first rotation force transmission element or the second rotation force transmission element are fixed and are connected.
In order to realize above-mentioned a further object, medical grinding tool provided by the invention includes bendable bistrique.Bendable bistrique is the bendable bistrique described by technique scheme.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of bendable bistrique in the medical grinding tool first embodiment of the present invention；
Fig. 2 is the STRUCTURE DECOMPOSITION figure of bendable bistrique in the medical grinding tool first embodiment of the present invention；
Fig. 3 is the axonometric chart of the present invention medical grinding tool short-and-medium rotating shaft of first embodiment；
Fig. 4 is the axonometric chart of contiguous block in the medical grinding tool first embodiment of the present invention；
Fig. 5 is the top view of contiguous block in the medical grinding tool first embodiment of the present invention；
Fig. 6 is the axonometric chart of long rotating shaft in the present invention medical grinding tool first embodiment；
Fig. 7 is the axial sectional view of long rotating shaft in the present invention medical grinding tool first embodiment；
Fig. 8 is the axial sectional view of bendable bistrique in the present invention medical grinding tool first embodiment；
Fig. 9 is the axial sectional view of bendable bistrique and Fig. 8 phase orthogonal direction in the present invention medical grinding tool first embodiment；
Figure 10 is the axonometric chart under the first rotation force transmission element of bendable bistrique in the present invention medical grinding tool first embodiment and the not coaxial state of the second rotation force transmission element；
Figure 11 is the axial sectional view of bendable bistrique in the present invention medical grinding tool the second embodiment；
Figure 12 is the axial sectional view of bendable bistrique in the present invention medical grinding tool the 3rd embodiment.
Below in conjunction with embodiment and accompanying drawing thereof, the invention will be further described.
The central scope of the present invention is that the driving force transmitting assembly structure of bendable bistrique in existing medical grinding tool is improved, it is carried out microminiaturization and improves the stability of its transmission performance, the bistrique in medical grinding tool, driving epitheca, control other structures such as device and power set can be designed according to existing product completely.
Following embodiment is for design and manufacture rotation force transmission element the present invention will be described at the driving force transmitting assembly of 2 millimeters of being smaller in size than being perpendicular on its own rotation axis line direction.
Detailed description of the invention
Medical grinding tool first embodiment
Medical grinding tool is made up of bendable bistrique, driving epitheca, control device and power set.
Referring to Fig. 1 and Fig. 2, bendable bistrique is made up of bistrique 1 and driving force transmitting assembly 2.
Bistrique 1 is made up of the fixed part 12 of substantially spherical grinding part 11 with column.
Driving force transmitting assembly 2 is made up of short rotating shaft 3, cross axle 4 and long rotating shaft 5.Short rotating shaft 3 constitutes first rotation force transmission element of the present embodiment, and long rotating shaft 5 constitutes second rotation force transmission element of the present embodiment.
Long rotating shaft 5 is made up of transmission lever 51 and stator 52.
Cross axle 4 44 is made up of contiguous block 41, short pin 42, short pin 43 and having strong market potential.
Referring to Fig. 3, the body 30 of short rotating shaft 3 is circle bar structure, and its left end end is the first yoke 31, the yoke 311,312 of the first yoke 31 is provided with accordingly and 44 axis holes 3110,3120 matched of having strong market potential；Right-hand member is formed with the installing hole 32 that the fixed part 12 with bistrique 1 matches, installing hole 32 and body 30 coaxial arrangement.
Referring to Fig. 4 and Fig. 5, the body 410 of contiguous block 41 is cylinder, this cylinder is formed and extends transversely through its first through hole 411 along it, and the first through hole 411 44 matches with having strong market potential, and the first through hole 411 be positioned at this cylinder longitudinally with horizontal middle part；This cylinder is also formed with running through the second through hole 412 of its both ends of the surface, second through hole 412 and this cylinder coaxial arrangement, the i.e. axis normal of the axis of the first through hole 411 and the second axis hole 412, and the intersection point of the two is positioned at this cylindrical longitudinal direction and horizontal center.
Referring to Fig. 6 and Fig. 7, the body 510 of transmission lever 51 is circle bar structure, and its left part is the second yoke 511, and the yoke 512,513 of the second yoke 511 is provided with axis hole 5120,5130 accordingly that match with short pin 42,43；Right part is the revolving force acceptance division 515 of yi word pattern structure, for receiving revolving force from power set.
The left end of transmission lever 51 is formed with the cutting groove 514 of notch junction between yoke 512 and yoke 513, the groove depth direction of cutting groove 514 extends along the direction of the rotation axis 01 being parallel to long rotating shaft 5, and cutting groove 514 runs through long rotating shaft 5 along the direction being perpendicular to rotation axis 01, namely along the two side extending radially through transmission lever 51 of transmission lever 51.The groove width of the bottom 5142 of cutting groove 514 is more than the groove width of other parts 5141, and wherein, the shape of bottom 5142 can have multiple choices, and such as its cross section is circular, triangle or rectangle, and the present embodiment elects rectangle as, and namely cutting groove 514 is T-slot.Cutting groove 514 is arranged about rotation axis 01 axial symmetry.
First yoke 31, cross axle 4 and the second yoke 511 constitute the Hooke's joint mechanism of the present embodiment together.
The method manufacturing revolving force transmitting assembly 2 includes part procedure of processing, installation step and attaching step.
Part procedure of processing, referring to Fig. 1 to Fig. 7, processes short rotating shaft 3, transmission lever 51, contiguous block 41 by dimensional requirement, has strong market potential 44, short pin 42, short pin 43 and stator 52.Wire cutting method is adopted to process cutting groove 514 in long rotating shaft 5.
The size of each part according to actual needs and Structural strength calls be designed.In the present embodiment, the external diameter of long rotating shaft 5 and short rotating shaft 3 is 1.78 millimeters, the groove width of the trench bottom 5142 of cutting groove 514 is 1 millimeter, and the groove width of other parts 5141 is 0.25 millimeter, and trench bottom 5142 is along being parallel on rotation axis 01 direction and being of a size of 0.25 millimeter.The aperture of axis hole 3110,3120,5120 and 5130 is 0.6 millimeter, and yoke 311,312,512 and 513 is being 0.24 millimeter along the thickness of rotation force transmission element the widest part radially, and namely the spacing between two yoke internal faces is 1.3 millimeters.
Installation step, referring to Fig. 2, Fig. 8 and Fig. 9, the second axis hole 412 is stretched into from a port of the second axis hole 412 respectively in one end of short pin 42,43, and make their one end end face be located just at the hole wall place of the first axis hole 411, and it is connected fixing with contiguous block 41 for short pin 42,43 by the mode welded；By have strong market potential 44 one end sequentially pass through axis hole the 3110, first through hole 411 and axis hole 3120, and by have strong market potential 44 two ends be connected by welding manner is fixing with yoke 311,312 accordingly, have strong market potential 44 and first through hole 411 matched in clearance；Strut yoke 512 and 513, the free end of short pin 42,43 is inserted correspondingly into axis hole 5120 and 5130 and with the two matched in clearance.
Attaching step, puts into stator 52 cutting groove 514, and is connected by the mode of laser weld is fixing with the two side of cutting groove 514 by stator 52, and the bottom surface of the end of stator 52 and cutting groove 514 is fixedly connected also by laser weld mode.
On the basis of above-mentioned steps, by being inserted by fixed part 12 in installing hole 32 and being fixed in short rotating shaft 3 by welding manner by bistrique 1, constitute the bendable bistrique of the present invention.
In the present embodiment, the Main Function of cutting groove 514 is in the process loading in the second yoke 511 by short axle 42,43, preventing yoke 512 and 513 from fractureing because of overbending or changing the quality of fit of they and short pin owing to producing excessive flexural deformation, therefore it need to be determined according to the length of long rotating shaft 5, external diameter, material and the structure of cross axle, size along being parallel to the groove depth on rotation axis 01 direction.
Owing to cutting groove 514 is the trench bottom groove widths such as the T-slot structural design wider than other parts, wall body flexural deformation in installation process in cutting groove both sides is made to be concentrated mainly on the part of trench bottom, with in stator welding process, easily it is easier to cutting groove both sides wall body recover to its straight state, it is thereby advantageously ensured that the physical dimension precision after welding.
Owing to the thickness of yoke 311,312,512,513 is very little, easily become fragile and frangibility after adopting soldering, and after adopting above-mentioned design structure, 44 simultaneously fixing with yoke 311,312 is connected owing to having strong market potential, mutual tractive in transmission revolving force process and effectively reduce the probability that fractureing occurs in yoke 311,312.
Referring to Figure 10, in the course of the work, the long rotating shaft 5 of bendable bistrique receives the revolving force from power set, and passes to short rotating shaft 3 by Hooke's joint mechanism 4, and osseous tissue is carried out grinding by band rotary bistrique 1.When needing the grinding position changing bistrique 1, by driving epitheca to promote the rotation axis 02 of short rotating shaft 3 to form angle with the rotation axis 01 of long rotating shaft 5, due to the effect of Hooke's joint mechanism 4, still the revolving force that long rotating shaft 5 receives can be passed to short rotating shaft 3.
Medical grinding tool the second embodiment
As the explanation to medical grinding tool the second embodiment of the present invention, only the difference with medical grinding tool first embodiment is illustrated below.
Referring to Figure 11, cutting groove 314 is formed in short rotating shaft 3, and namely short rotating shaft 3 constitutes second rotation force transmission element of the present embodiment, and long rotating shaft 5 constitutes first rotation force transmission element of the present embodiment.
Further, axis hole 3110 and 3120 matched in clearance on the yoke of short pin 42,43 and short rotating shaft 3, and have strong market potential and 44 fixing with the axis hole on long rotating shaft 5 yoke be connected.
Medical grinding tool the 3rd embodiment
As the explanation to the present invention medical grinding tool the 3rd embodiment, only the difference with medical grinding tool first embodiment is illustrated below.
Referring to Figure 12, by line cutting, the body 510 of transferring member 51 is divided into upper and lower halved body rather than the cutting groove that in first embodiment, also part links together, re-uses stator 52 and by the mode of laser weld, halved body is fixedly connected into integrally.
In welding process, it is possible to undertaken clamping and being directed at by clamping aligning tool, make integrally welded after the dimensional accuracy of long rotating shaft meet requirement.
In the present embodiment, transmission lever 51 being divided into two halfbodies, this halved body is not necessarily to Striking symmetry and arranges, namely cutting path can be partial to a wherein halfbody, also implies that halved body is not required to just the same in size radially.
In the specific embodiment of the invention, the structure of contiguous block is not limited to above-mentioned cylindrical structure, also has multiple apparent change, is such as cube or sphere structure.The structure of the first rotation force transmission element, the second rotation force transmission element and cross axle also has multiple apparent change, such as, first rotation force transmission element is formed cutting groove or is cut into halved body, second rotation force transmission element is formed cutting groove or is cut into halved body, and have strong market potential, short pin is all fixedly connected with contiguous block or has strong market potential, short pin and contiguous block are made in integrated mode；The two side of cutting groove or halved body adopt bonding agent to carry out bonding, the block structure that wherein fixed block can be formed after solidifying for bonding agent.
Claims (10)
1. driving force transmitting assembly, for medical bendable bistrique, including the first rotation force transmission element and the second rotation force transmission element；
One end of described first rotation force transmission element is connected with one end of described second rotation force transmission element by cating nipple；
It is characterized in that:
Described cating nipple is Hooke's joint mechanism, and described Hooke's joint mechanism includes the first yoke, cross axle and the second yoke, and described cross axle includes contiguous block, has strong market potential and two short pins；
Described one end of having strong market potential is through the first through hole being located on described contiguous block and coordinates with described first via clearance, described in the two ends had strong market potential fix with two yokes of described first yoke accordingly and be connected；
One end of two described short pins and described contiguous block are fixing to be connected, and the other end stretches into the axis hole on the yoke being located at described second yoke matched in clearance with it；
The end of one end of described first rotation force transmission element is described first yoke, and the end of one end of described second rotation force transmission element is described second yoke；
One end of described second rotation force transmission element is formed with notch cutting groove of junction between two yokes of described second yoke, the groove depth direction of described cutting groove extends along the direction of the rotation axis being parallel to described second rotation force transmission element, described cutting groove runs through described second rotation force transmission element along the direction being perpendicular to described rotation axis, and the two side of described cutting groove connects by the stator being positioned at described cutting groove is fixing.
2. driving force transmitting assembly according to claim 1, it is characterised in that:
Described contiguous block is cylinder, and described cylinder is formed through the second through hole of its both ends of the surface, described second through hole and described cylinder coaxial arrangement；
One end of described short pin is stretched into described second through hole from the Single port of described second through hole and fixing with described cylinder is connected；
Described first through hole is along the described cylindrical described cylinder that extends transversely through, and described first through hole is positioned at described cylindrical longitudinal direction and horizontal middle part.
3. driving force transmitting assembly according to claim 1, it is characterised in that:
The groove width of the bottom of described cutting groove is more than the groove width of other parts.
4. driving force transmitting assembly according to claim 1, it is characterised in that:
Described first rotation force transmission element is fixing with the bistrique of described bendable bistrique to be connected.
5. driving force transmitting assembly according to claim 1, it is characterised in that:
It is connected by welding manner is fixing between described stator with the sidewall of described cutting groove.
6. driving force transmitting assembly according to any one of claim 1 to 5, it is characterised in that:
Described first rotation force transmission element being smaller in size than equal to 2 millimeters on the direction being perpendicular to its rotation axis；
Described second rotation force transmission element being smaller in size than equal to 2 millimeters on the direction being perpendicular to its rotation axis.
7. the method for driving force transmitting assembly described in any one of manufacturing claims 1 to 6, it is characterised in that the method includes:
Part procedure of processing, by dimensional requirement process described first rotation force transmission element, described second rotation force transmission element, described contiguous block, described in have strong market potential and described short pin, adopt wire cutting method on described second rotation force transmission element, process described cutting groove；
Installation step, it is connected fixing to described short pin and described contiguous block, and described one end having strong market potential is sequentially passed through the axis hole on the yoke being formed at described first yoke, described first through hole, and be formed at the axis hole on another yoke of described first yoke, and the described two ends having strong market potential are connected by welding manner is fixing with the yoke of described first yoke；Strut two yokes of described second yoke, the free end of described short pin is inserted in the axis hole on the yoke of described second yoke；
Attaching step, adopts described stator to connect fixing for the two side of described cutting groove.
8. method according to claim 7, it is characterised in that:
In described attaching step, method for laser welding is adopted to be connected fixing with the two side of described cutting groove for described stator.
9. bendable bistrique, including driving force transmitting assembly and bistrique；
It is characterized in that:
Described driving force transmitting assembly is driving force transmitting assembly described in any one of claim 1 to 6；
Described bistrique is fixing with described first rotation force transmission element or described second rotation force transmission element to be connected.
10. medical grinding tool, including bendable bistrique；
It is characterized in that:
Described bendable bistrique is bendable bistrique described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242588.0A CN105726085B (en) | 2016-04-18 | 2016-04-18 | Drive force transfer unit and manufacture method and bendable bistrique, medical grinding tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242588.0A CN105726085B (en) | 2016-04-18 | 2016-04-18 | Drive force transfer unit and manufacture method and bendable bistrique, medical grinding tool |
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| CN105726085A true CN105726085A (en) | 2016-07-06 |
| CN105726085B CN105726085B (en) | 2018-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113020909A (en) * | 2021-03-11 | 2021-06-25 | 山东泰金斯锻造有限公司 | Integrated forming method for front fork of forklift |
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| TW200905098A (en) * | 2007-07-31 | 2009-02-01 | Hou-Fei Hu | Pivot structure of universal joint |
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| CN111374738A (en) * | 2018-12-29 | 2020-07-07 | 江苏风和医疗器材股份有限公司 | Puncture core subassembly and puncture ware |
| CN111374738B (en) * | 2018-12-29 | 2023-05-05 | 江苏风和医疗器材股份有限公司 | Puncture core assembly and puncture outfit |
| CN113020909A (en) * | 2021-03-11 | 2021-06-25 | 山东泰金斯锻造有限公司 | Integrated forming method for front fork of forklift |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105726085B (en) | 2018-04-13 |
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