CN109893204A - A kind of more drill-bit changing device for being guided on bone drilling device automatically - Google Patents
A kind of more drill-bit changing device for being guided on bone drilling device automatically Download PDFInfo
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- CN109893204A CN109893204A CN201910153563.7A CN201910153563A CN109893204A CN 109893204 A CN109893204 A CN 109893204A CN 201910153563 A CN201910153563 A CN 201910153563A CN 109893204 A CN109893204 A CN 109893204A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 21
- 238000005553 drilling Methods 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 17
- 238000009434 installation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 238000001356 surgical procedure Methods 0.000 description 8
- 238000011900 installation process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The invention belongs to the field of medical instrument technology, disclose a kind of more drill-bit changing device for being guided on bone drilling device automatically, including the casing for receiving drill bit connecting pin, actuator for clamping the gripping block of drill bit and for driving the gripping block to move radially, corresponding position is equipped with the consistent via hole of clamping direction of axis and the gripping block in described sleeve pipe, the gripping block passes through the via hole, elastic component is connected between described sleeve pipe and the gripping block, and the elastic force direction of the elastic component is consistent with the clamping direction of the gripping block, it is additionally provided in described sleeve pipe for realizing the positioning device of Primary Location is carried out to drill bit；The present invention can guarantee the reliability being fastenedly connected between drill bit and clamping head, and compact overall structure is easy to use, and more bit change is convenient and efficient, be conducive to improve working efficiency.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of for guiding the replacement on bone drilling device to bore automatically
Head device.
Background technique
Bone drill is that orthopaedics is relatively conventional surgically, is completed by bone drill equipment, existing bone drill chuck mechanism
Type is more, in order to guarantee to clamp stability, using installation process complexity, specifically, since drill bit is real by drill bit clamping element
It is now fixedly connected with motor output shaft, during surgery due to needing to replace drill bit according to different surgical procedures, passes
The needs of system enter the mode installed to drill bit from the upper end of clamping device, it is necessary to and it is whole to unload lower fixture, more
It is extremely inconvenient during bit change, and encounter biggish torque when in use and be also easy to damage or skid, therefore, it is necessary to
Existing orthopaedics drill point head assembly is improved.
Summary of the invention
For it is above-mentioned in the prior art, the present invention provides a kind of for guiding the more bit change on bone drilling device to fill automatically
It sets, can guarantee the reliability being fastenedly connected between drill bit and clamping head, compact overall structure is easy to use, and replacement is bored
It is convenient and efficient, it is conducive to improve working efficiency.
The technical scheme adopted by the invention is as follows:
A kind of more drill-bit changing device for being guided on bone drilling device automatically, including the set for receiving drill bit connecting pin
Pipe, the gripping block for clamping drill bit and the actuator for driving the gripping block to move radially, it is corresponding in described sleeve pipe
Position is equipped with the consistent via hole of clamping direction of axis and the gripping block, and the gripping block passes through the via hole, described sleeve pipe
Elastic component, and the clamping direction one in the elastic force direction of the elastic component and the gripping block are connected between the gripping block
It causes, is additionally provided in described sleeve pipe for realizing the positioning device of Primary Location before being installed to drill bit.
Specifically, the upper end of casing passes through the output axis connection of flange and motor, need to guarantee in the motor course of work defeated
The axis of shaft and the axis of drill bit are consistent, since the output shaft of motor is fixedly connected with the upper end of casing by flange,
The upper end of casing is constantly in closed state at work, it is contemplated that efficiently realizes in the course of surgery to drill bit for convenience
Replacement, it is traditional by the way of installation drill bit from top to bottom, need to dismantle down and motor output shaft and flanged joint
Part later again by the threading casing from top to bottom of drill bit, then is clamped, and such mode more bit change is extremely onerous.Therefore,
Replacement to drill bit for convenience, the technical program use the clamping realized from upper mounting means by lower to drill bit, and replacement is bored
The operation of head only needs the actuator of the operation present apparatus, then drill bit is from top to bottom put into, and the design, which can be realized, to perform the operation
Conveniently different drill bits is replaced in the process, is brought conveniently for going on smoothly for operation, it can be largely
Raising procedure efficiency, while also reducing the burden of operative doctor.
Specifically, being equipped with elastic component, bullet between gripping block and casing since actuator can be realized the driving to gripping block
Property part elastic force direction it is consistent with the clamping direction of gripping block, actuator driving gripping block, which moves radially, to be realized to the folder of drill bit
Tightly, after the power that actuator driving gripping block moves radially disappears, elastic component can drive gripping block to move backward, and vacate bigger
Space, avoid installation drill bit during stop drill bit smoothly move up, the design is advantageous in that, due to the connection of drill bit
End size is larger, if actuator cannot timely and effectively reset, largely influences the installation to drill bit, pushes away from the bottom to top
It will appear Caton into drill bit, if strength promotes it is also possible to causing the damage to gripping block, therefore, elastic component can help to clamp
Block timely exits clamped condition after driving force disappearance, guarantees the smooth operation of next bit change-over.
Due in drill bit from the bottom to top installation process, needing to carry out drill bit preliminary positioning, only preliminary to drill bit
After positioning, it is just able to achieve the operation to actuator, therefore, in casing is additionally provided with for realizing preliminary before being installed to drill bit
The positioning device of positioning.
Further, the positioning device includes being arranged in described sleeve pipe for resisting the magnet and use of drill bit connecting pin
In the silica gel ring for carrying out auxiliary positioning to drill bit, the silica gel ring is located at the lower section of the magnet.
Specifically, magnet is symmetrically arranged at least two pieces of design, magnet can be realized the abutting to drill bit connecting pin, silicon
Cushion rubber can realize the holding to drill bit after drill bit and magnet push against, then not operate actuator also, realize the folder to drill bit
When tight effect, the abjection of drill bit can be prevented by the cooperation of silica gel ring and magnet, pass through operation actuator realization pair again later
The clamping of drill bit.
Further, the elastic component is set between the outer wall and the gripping block of described sleeve pipe, and elastic component is located at casing
Outer wall and gripping block between, the reset to gripping block can be realized in elastic component bounce.
Further, the gripping block include be located at described sleeve pipe in and for realizing the clamping plate clamped for drill bit,
Be located in the via hole and the link block that is fixedly connected with the clamping plate and be located at outside described sleeve pipe and with the link block
The driving plate being fixedly connected, the elastic component are set between the outer wall and the driving plate of described sleeve pipe, solid in the driving plate
Surely it is connected with wedge block, the wedge block includes loosening position and clamping position, the upper end loosened position and be located at the wedge block, institute
The lower end that clamping position is located at the wedge block is stated, the driving end of the actuator and the wedge block contradict.
The driving end of actuator and wedge block contradict, and actuator vertically moves, during vertically moving, constantly
Wedge block is squeezed, wedge block is pushed directly in clamping plate and moved, and when the clamping face of clamping plate and drill bit push against, drill bit is pressed from both sides
Tightly.
Specifically, gripping block is circumferentially evenly arranged at least two along described sleeve pipe, just it is able to achieve and drill bit is being clamped
State lower axis is consistent with the axis of casing, so that realization is consistent with the axis of motor output shaft, in the technical program, silica gel ring
Design, not only have the effect of Primary Location, also have and avoid drill bit promoting the axis of drill bit and casing in casing
The case where axis deviates further ensures the reliability of drill bit installation site and clamped condition.
Further, in order to guarantee moving radially for driving plate, the elastic component is for spring and along the driving plate week
To being evenly arranged at least two.
Further, in order to realize the effect that is matched for clamping tightly to drill bit connecting pin, the clamping face of the clamping plate is arc
Face.
It further, further include set on the position limiting structure between described sleeve pipe and the gripping block.
Further, the position limiting structure includes being symmetricly set on the sliding block of the driving plate upper and lower side and set on the set
The outer sliding slot being slidably matched with the sliding block of pipe, sliding slot above the driving plate it is opening down, below the driving plate
Sliding slot it is opening up.
The setting of position limiting structure can be avoided in drill bit rotation process, and biggish torque is likely to result in drill slipping,
Specifically, the sliding slot above driving plate is opening down, the sliding slot below driving plate is opening up, the design of such sliding groove structure,
While not hindering gripping block to move radially, can further limit the direction of the clamping force of gripping block, avoid because via hole with
There are gaps between gripping block, and influence the rotating effect of drill bit.
Further, the actuator includes the screw shell connecting with described sleeve pipe threaded upper ends and described for driving
The driving portion that clamping plate diameter inwardly moves, the driving portion are set to the lower end of the screw shell, are equipped with evacuation in the driving portion
Chamber.
By the way of screw drive, exists and operate convenient, the good advantage of locking effect.
Further, the outer wall of described sleeve pipe is equipped with guide pad and protective cover, and the sliding slot above the driving plate is set to
On the guide pad, the sliding slot below the driving plate is set on the protective cover, and the design of protective cover is in order to internal junction
The protection of structure.
The invention has the benefit that
1. the technical program uses the clamping realized from upper mounting means by lower to drill bit, the operation of more bit change is only needed
The actuator for operating the present apparatus, from top to bottom puts into, the design can be realized without unloading entire connector, then by drill bit
Conveniently different drill bits is replaced in the course of surgery, is brought conveniently for going on smoothly for operation, it can be very
The raising procedure efficiency of big degree, while also reducing the burden of operative doctor.
2. being equipped with elastic component, elastic component between gripping block and casing since actuator can be realized the driving to gripping block
Elastic force direction it is consistent with the clamping direction of gripping block, actuator driving gripping block, which moves radially, realizes clamping to drill bit, drives
After the power that moving part driving gripping block moves radially disappears, elastic component can drive gripping block to move backward, and vacate bigger sky
Between, it avoids stopping smoothly moving up for drill bit during installation drill bit, the design is advantageous in that, due to the connection end of drill bit
Size is larger, if actuator cannot timely and effectively reset, largely influences the installation to drill bit, promotes bore from the bottom to top
Head will appear Caton, if strength promotes it is also possible to causing the damage to gripping block, therefore, elastic component can help gripping block to exist
Driving force timely exits clamped condition after disappearing, and guarantees the smooth operation of next bit change-over.
3. the setting of positioning device realizes the Primary Location for installing drill bit from the bottom to top, just from the bottom to top due to drill bit
In installation process, magnet is symmetrically arranged at least two pieces of design, and magnet can be realized the abutting to drill bit connecting pin, silica gel ring
The holding to drill bit can be realized after drill bit and magnet push against, then does not operate actuator also, realize that the clamping to drill bit is imitated
When fruit, the abjection of drill bit can be prevented by the cooperation of silica gel ring and magnet, realized again by operation actuator to drill bit later
Clamping.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of clamped condition of the present invention；
Fig. 2 is the structural schematic diagram of undamped state of the present invention；
Fig. 3 is the enlarged drawing in Fig. 1 at A；
Fig. 4 is the enlarged drawing in Fig. 2 at B.
In figure: drill bit 1；Casing 2；Actuator 3；Screw shell 3.1；Driving portion 3.2；Avoid chamber 3.3；Gripping block 4；It clamps
Plate 4.1；Link block 4.2；Driving plate 4.3；Wedge block 4.4；Via hole 5；Magnet 6；Silica gel ring 7；Spring 8；Sliding block 9；Sliding slot 10；Glue
Set 11；Stop collar 12；Guide pad 13；Protective cover 14；Movable chamber 15；Intrusion slot 16.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.
Embodiment 1:
As Figure 1-Figure 4, the present embodiment provides a kind of more drill-bit changing device for being guided on bone drilling device automatically, packets
Include the casing 2 for receiving drill bit connecting pin, the gripping block 4 for clamping drill bit 1 and for driving gripping block 4 to move radially
Actuator 3, corresponding position is equipped with the consistent via hole 5 of clamping direction of axis and gripping block 4 on casing 2, and gripping block 4 passed through
Hole 5 is connected with elastic component between casing 2 and gripping block 4, and the elastic force direction of elastic component is consistent with the clamping direction of gripping block 4,
It is additionally provided in casing 2 for realizing the positioning device of Primary Location before being installed to drill bit 1.
Specifically, the upper end of casing 2 passes through the output axis connection of flange and motor, need to guarantee in the motor course of work defeated
The axis of shaft is consistent with the axis of drill bit 1, since the output shaft of motor is fixedly connected with the upper end of casing 2 by flange, because
The upper end of this casing 2 is constantly in closed state at work, it is contemplated that it is right in the course of surgery efficiently to realize for convenience
The replacement of drill bit 1, it is traditional by the way of installation drill bit 1 from top to bottom, it needs to dismantle down and motor output shaft and flange
The part of connection later again by the casing of threading from top to bottom 2 of drill bit 1, then is clamped, and such mode more bit change 1 is extremely
Trouble.Therefore, the replacement to drill bit 1 for convenience, the technical program is used to be realized from upper mounting means to drill bit 1 by lower
It clamps, the operation of more bit change 1 only needs the actuator 3 of the operation present apparatus, then drill bit 1 is from top to bottom put into, the design
It can be realized and conveniently different drill bits 1 is replaced in the course of surgery, go on smoothly the side of bringing for operation
Just, procedure efficiency can be significantly improved, while also reducing the burden of operative doctor.
Specifically, being equipped with elasticity between gripping block 4 and casing 2 since actuator 3 can be realized the driving to gripping block 4
The elastic force direction of part, elastic component is consistent with the clamping direction of gripping block 4, and actuator 3 drives gripping block 4 to move radially realization to brill
First 1 clamping, after the power that actuator 3 drives gripping block 4 to move radially disappears, elastic component can drive gripping block 4 reversely to move
It is dynamic, bigger space is vacateed, avoids stopping smoothly moving up for drill bit 1 during installation drill bit 1, the design is advantageous in that,
Since the connection end size of drill bit 1 is larger, if actuator 3 cannot timely and effectively reset, largely influence to drill bit 1
Installation, promote drill bit 1 to will appear Caton from the bottom to top, if strength promotes it is also possible to cause the damage to gripping block 4, because
This, elastic component can help gripping block 4 timely to exit clamped condition after driving force disappearance, guarantee that next drill bit 1 is replaced
Smooth operation.
Due to needing to carry out drill bit 1 preliminary positioning, only at the beginning of drill bit 1 in drill bit 1 from the bottom to top installation process
After step positioning, it is just able to achieve the operation to actuator 3, therefore, is additionally provided in casing 2 and is installed for realizing to drill bit 1
The positioning device of preceding Primary Location.
Embodiment 2:
The present embodiment is to optimize restriction on the basis of above-described embodiment 1.
As Figure 1-Figure 4, positioning device includes the magnet 6 being arranged in casing 2 for resisting drill bit connecting pin and uses
In the silica gel ring 7 for carrying out auxiliary positioning to drill bit 1, silica gel ring 7 is located at the lower section of magnet 6.
Specifically, magnet 6 is symmetrically arranged at least two pieces, two pieces of design is used in the present embodiment, in addition, can also be used
The structure types such as magnet ring are arranged in casing 2, and magnet 6 can be realized the abutting to drill bit connecting pin, and silica gel ring 7 can be in drill bit
1 pushes against the holding realized later to drill bit 1 with magnet 6, then does not operate actuator 3 also, when realizing the clamping effect to drill bit 1,
The abjection of drill bit 1 can be prevented by the cooperation of silica gel ring 7 and magnet 6, realized again by operation actuator 3 to drill bit 1 later
Clamping.
Embodiment 3:
The present embodiment is to optimize restriction on the basis of above-described embodiment 2.
As Figure 1-Figure 4, elastic component is set between the outer wall and gripping block 4 of casing 2, and elastic component is located at the outer of casing 2
Between wall and gripping block 4, the reset to gripping block 4 is can be realized in elastic component bounce.
Embodiment 4:
The present embodiment is to optimize restriction on the basis of above-described embodiment 3.
As Figure 1-Figure 4, gripping block 4 includes being located in casing 2 and for realizing the clamping plate clamped for drill bit 1
4.1, consolidate with positioned at the link block 4.2 that via hole 5 is interior and is fixedly connected with clamping plate 4.1 and outside casing 2 and with link block 4.2
Surely the driving plate 4.3 connected, elastic component are set between the outer wall and driving plate 4.3 of casing 2, are fixedly connected in driving plate 4.3
Wedge block 4.4, wedge block 4.4 include loosening position and clamping position, loosen the upper end that position is located at wedge block 4.4, clamping position is located at wedge
The lower end of shape block 4.4, the driving end of actuator 3 and wedge block 4.4 contradict.
The driving end of actuator 3 and wedge block 4.4 contradict, and actuator 3 vertically moves, during vertically moving,
Constantly wedge block 4.4 is squeezed, wedge block 4.4 is pushed directly in clamping plate 4.1 and is moved, the clamping face of clamping plate 4.1 with
When drill bit 1 pushes against, drill bit 1 is clamped.
Specifically, gripping block 4 is evenly arranged at least two along casing 2 is circumferential, just it is able to achieve and shape is being clamped to drill bit 1
State lower axis is consistent with the axis of casing 2, so that realization is consistent with the axis of motor output shaft, in the technical program, silica gel ring 7
Design, not only have the effect of Primary Location, also there is the axis and casing avoided drill bit 1 to be promoted to drill bit 1 in casing 2
The case where 2 axis deviates further ensures the reliability of 1 installation site of drill bit and clamped condition.
Specifically, after in order to realize and step up sheet reset, clamp inner wall of the face without departing from casing 2, the inner wall of casing 2 with
Clamping plate 4.1 to pair position be set to intrusion slot 16, the depth of intrusion slot 16 is greater than or equal to the thickness of clamping plate 4.1, this reality
It applies in example, the depth of intrusion slot 16 is equal to the thickness of clamping plate 4.1.
Embodiment 5:
The present embodiment is to optimize restriction on the basis of above-described embodiment 4.
As Figure 1-Figure 4, in order to guarantee moving radially for driving plate 4.3, elastic component is for spring 8 and along driving plate
4.3 it is circumferential be evenly arranged at least two, in the present embodiment, spring 8 is set as two, is located at the upper end of driving plate 4.3
And lower end position.
Embodiment 6:
The present embodiment is to optimize restriction on the basis of above-described embodiment 4 or 5.
As shown in Figure 1 and Figure 2, in order to realize the effect that is matched for clamping tightly to drill bit connecting pin, the clamping face of clamping plate 4.1 is
Arcwall face.
Embodiment 7:
The present embodiment is to optimize restriction on the basis of above-described embodiment 6.
It as Figure 1-Figure 4, further include set on the position limiting structure between casing 2 and gripping block 4.Position limiting structure includes symmetrical
The sliding block 9 of 4.3 upper and lower side of driving plate is set and on the sliding slot 10 that casing 2 is outer and sliding block 9 is slidably matched, driving plate 4.3
The sliding slot 10 of side it is opening down, the sliding slot 10 of the lower section of driving plate 4.3 it is opening up.
The setting of position limiting structure can be avoided in 1 rotation process of drill bit, and biggish torque is likely to result in drill bit 1 and beats
Sliding, specifically, the sliding slot 10 of 4.3 top of driving plate is opening down, the sliding slot 10 of 4.3 lower section of driving plate is opening up, such cunning
The design of 10 structure of slot can further limit the clamping force of gripping block 4 while not hindering gripping block 4 to move radially
Direction is avoided because there are gaps between via hole 5 and gripping block 4, and influences the rotating effect of drill bit 1.
Embodiment 8:
The present embodiment is to optimize restriction on the basis of above-described embodiment 7.
As Figure 1-Figure 4, actuator 3 includes the screw shell 3.1 connecting with 2 threaded upper ends of casing and presss from both sides for driving
The driving portion 3.2 that tight 4.1 diameter of plate inwardly moves, driving portion 3.2 are set to the lower end of screw shell 3.1, are equipped with evacuation in driving portion 3.2
Chamber 3.3.
By the way of screw drive, exists and operate convenient, the good advantage of locking effect.
Screw shell 3.1 is equipped with the gum cover 11 for facilitating manual operation.
Casing 2, which is equipped with, places the stop collar 12 that screw shell 3.1 excessively moves up.
Embodiment 9:
The present embodiment is to optimize restriction on the basis of above-described embodiment 8.
As Figure 1-Figure 4, the outer wall of casing 2 is equipped with guide pad 13 and protective cover 14, the sliding slot of 4.3 top of driving plate
10 are set on guide pad 13, and the sliding slot 10 of 4.3 lower section of driving plate is set on protective cover 14, and the design of protective cover 14 is in order to internal
The protection of portion's structure.
Specifically, being equipped with movable chamber 15, in order to avoid movable chamber 15 and driving portion 3.2 offset, movable chamber in protective cover 14
15 upper end walls are greater than the distance that 3.2 Vertical Square of driving portion moves up to the distance between guide pad 13.
There are gap between the cavity wall of movable chamber 15 and the lateral wall of driving portion 3.2, driving portion 3.2, is clamped guide pad 13
Block 4 is respectively positioned in movable chamber 15.
Specifically, driving portion 3.2 is U-shaped cover structure of the opening towards casing 2, in order to avoid driving portion 3.2 and guiding
Block 13 is inconsistent, and the height of evacuation chamber 3.3 is greater than the distance that 3.2 Vertical Square of driving portion moves up.
Embodiment 10:
As Figure 1-Figure 4, a kind of more drill-bit changing device for being guided on bone drilling device automatically, including bored for accommodating
Casing 2, the gripping block 4 for clamping drill bit 1 and the actuator 3 for driving gripping block 4 to move radially of head connecting pin, set
On pipe 2 corresponding position be equipped with axis and gripping block 4 the consistent via hole 5 of clamping direction, gripping block 4 pass through via hole 5, casing 2 and
Elastic component is connected between gripping block 4, and the elastic force direction of elastic component is consistent with the clamping direction of gripping block 4, also sets in casing 2
Have for realizing the positioning device of Primary Location before being installed to drill bit 1.
Specifically, the upper end of casing 2 passes through the output axis connection of flange and motor, need to guarantee in the motor course of work defeated
The axis of shaft is consistent with the axis of drill bit 1, since the output shaft of motor is fixedly connected with the upper end of casing 2 by flange, because
The upper end of this casing 2 is constantly in closed state at work, it is contemplated that it is right in the course of surgery efficiently to realize for convenience
The replacement of drill bit 1, it is traditional by the way of installation drill bit 1 from top to bottom, it needs to dismantle down and motor output shaft and flange
The part of connection later again by the casing of threading from top to bottom 2 of drill bit 1, then is clamped, and such mode more bit change 1 is extremely
Trouble.Therefore, the replacement to drill bit 1 for convenience, the technical program is used to be realized from upper mounting means to drill bit 1 by lower
It clamps, the operation of more bit change 1 only needs the actuator 3 of the operation present apparatus, then drill bit 1 is from top to bottom put into, the design
It can be realized and conveniently different drill bits 1 is replaced in the course of surgery, go on smoothly the side of bringing for operation
Just, procedure efficiency can be significantly improved, while also reducing the burden of operative doctor.
Specifically, being equipped with elasticity between gripping block 4 and casing 2 since actuator 3 can be realized the driving to gripping block 4
The elastic force direction of part, elastic component is consistent with the clamping direction of gripping block 4, and actuator 3 drives gripping block 4 to move radially realization to brill
First 1 clamping, after the power that actuator 3 drives gripping block 4 to move radially disappears, elastic component can drive gripping block 4 reversely to move
It is dynamic, bigger space is vacateed, avoids stopping smoothly moving up for drill bit 1 during installation drill bit 1, the design is advantageous in that,
Since the connection end size of drill bit 1 is larger, if actuator 3 cannot timely and effectively reset, largely influence to drill bit 1
Installation, promote drill bit 1 to will appear Caton from the bottom to top, if strength promotes it is also possible to cause the damage to gripping block 4, because
This, elastic component can help gripping block 4 timely to exit clamped condition after driving force disappearance, guarantee that next drill bit 1 is replaced
Smooth operation.
Due to needing to carry out drill bit 1 preliminary positioning, only at the beginning of drill bit 1 in drill bit 1 from the bottom to top installation process
After step positioning, it is just able to achieve the operation to actuator 3, therefore, is additionally provided in casing 2 and is installed for realizing to drill bit 1
The positioning device of preceding Primary Location.
Positioning device includes being arranged in casing 2 for resisting the magnet 6 of drill bit connecting pin and auxiliary for carrying out to drill bit 1
The silica gel ring 7 of positioning is helped, silica gel ring 7 is located at the lower section of magnet 6.
Specifically, magnet 6 is symmetrically arranged at least two pieces of design, magnet 6 can be realized the abutting to drill bit connecting pin,
Silica gel ring 7 can realize the holding to drill bit 1 after drill bit 1 and magnet 6 push against, then not operate actuator 3 also, realize to brill
When first 1 clamping effect, the abjection of drill bit 1 can be prevented by the cooperation of silica gel ring 7 and magnet 6, driven again by operation later
Moving part 3 realizes the clamping to drill bit 1.
Elastic component be set to casing 2 outer wall and gripping block 4 between, elastic component be located at casing 2 outer wall and gripping block 4 it
Between, the reset to gripping block 4 can be realized in elastic component bounce.
Gripping block 4 includes being located in casing 2 and for realizing the clamping plate 4.1 clamped for drill bit 1 and positioned at via hole 5
The interior and link block 4.2 being fixedly connected with clamping plate 4.1 and driving plate that is outer positioned at casing 2 and being fixedly connected with link block 4.2
4.3, elastic component is set between the outer wall and driving plate 4.3 of casing 2, and wedge block 4.4 is fixedly connected in driving plate 4.3, wedge shape
Block 4.4 includes loosening position and clamping position, loosens the upper end that position is located at wedge block 4.4, and clamping position is located at the lower end of wedge block 4.4,
The driving end of actuator 3 and wedge block 4.4 contradict.
The driving end of actuator 3 and wedge block 4.4 contradict, and actuator 3 vertically moves, during vertically moving,
Constantly wedge block 4.4 is squeezed, wedge block 4.4 is pushed directly in clamping plate 4.1 and is moved, the clamping face of clamping plate 4.1 with
When drill bit 1 pushes against, drill bit 1 is clamped.
Specifically, gripping block 4 is evenly arranged at least two along casing 2 is circumferential, just it is able to achieve and shape is being clamped to drill bit 1
State lower axis is consistent with the axis of casing 2, so that realization is consistent with the axis of motor output shaft, in the technical program, silica gel ring 7
Design, not only have the effect of Primary Location, also there is the axis and casing avoided drill bit 1 to be promoted to drill bit 1 in casing 2
The case where 2 axis deviates further ensures the reliability of 1 installation site of drill bit and clamped condition.
Specifically, after in order to realize and step up sheet reset, clamp inner wall of the face without departing from casing 2, the inner wall of casing 2 with
Clamping plate 4.1 to pair position be set to intrusion slot 16, the depth of intrusion slot 16 is greater than or equal to the thickness of clamping plate 4.1, this reality
It applies in example, the depth of intrusion slot 16 is equal to the thickness of clamping plate 4.1.
In order to guarantee moving radially for driving plate 4.3, elastic component is spring 8 and is uniformly arranged along driving plate 4.3 is circumferential
Have at least two, in the present embodiment, spring 8 is set as two, is located at the top and bottom position of driving plate 4.3.
In order to realize the effect that is matched for clamping tightly to drill bit connecting pin, the clamping face of clamping plate 4.1 is arcwall face.
It further include set on the position limiting structure between casing 2 and gripping block 4.Position limiting structure includes being symmetricly set on driving plate
The sliding block 9 of 4.3 upper and lower sides and the sliding slot 10 above the outer sliding slot 10 being slidably matched with sliding block 9 of casing 2, driving plate 4.3
It is opening down, the sliding slot 10 of the lower section of driving plate 4.3 it is opening up.
The setting of position limiting structure can be avoided in 1 rotation process of drill bit, and biggish torque is likely to result in drill bit 1 and beats
Sliding, specifically, the sliding slot 10 of 4.3 top of driving plate is opening down, the sliding slot 10 of 4.3 lower section of driving plate is opening up, such cunning
The design of 10 structure of slot can further limit the clamping force of gripping block 4 while not hindering gripping block 4 to move radially
Direction is avoided because there are gaps between via hole 5 and gripping block 4, and influences the rotating effect of drill bit 1.
Actuator 3 includes the screw shell 3.1 connecting with 2 threaded upper ends of casing and for driving 4.1 diameter of clamping plate inside
The driving portion 3.2 of shifting, driving portion 3.2 are set to the lower end of screw shell 3.1, evacuation chamber 3.3 are equipped in driving portion 3.2.
By the way of screw drive, exists and operate convenient, the good advantage of locking effect.
Screw shell 3.1 is equipped with the gum cover 11 for facilitating manual operation.
Casing 2, which is equipped with, places the stop collar 12 that screw shell 3.1 excessively moves up.
The outer wall of casing 2 is equipped with guide pad 13 and protective cover 14, and the sliding slot 10 of 4.3 top of driving plate is set to guide pad 13
On, the sliding slot 10 of 4.3 lower section of driving plate is set on protective cover 14, and the design of protective cover 14 is for the protection to internal structure.
Specifically, driving portion 3.2 is U-shaped cover structure of the opening towards casing 2, in order to avoid driving portion 3.2 and guiding
Block 13 is inconsistent, and the height of evacuation chamber 3.3 is greater than the distance that 3.2 Vertical Square of driving portion moves up.
Specifically, being equipped with movable chamber 15, in order to avoid movable chamber 15 and driving portion 3.2 offset, movable chamber in protective cover 14
15 upper end walls are greater than the distance that 3.2 Vertical Square of driving portion moves up to the distance between guide pad 13.
There are gap between the cavity wall of movable chamber 15 and the lateral wall of driving portion 3.2, driving portion 3.2, is clamped guide pad 13
Block 4 is respectively positioned in movable chamber 15.
More 1 process of bit change:
Under undamped state, screw shell 3.1 is located at the top of casing 2, at this point, clamping plate 4.1 in intrusion slot 16, presss from both sides
Tight face is flushed with the inner wall of casing 2, directly first promotes the connecting pin of drill bit 1 in casing 2, and the connecting pin of rotary head squeezes silica gel ring
It is pushed against after 7 with magnet 6, preliminary positioning can may be implemented by magnet 6 by the drill bit 1 that magnet 6 adsorbs, it cannot be by magnet
The drill bit 1 of 6 absorption can realize the Primary Location to drill bit 1, two kinds fixed by silica gel ring 7 to the holding of the drill bit connecting pin
Position effect, Dual positioning effect, crosses rotation thread bush later, and thread bush moves down, and driving portion 3.2 also moves down, the drive of driving portion 3.2
Wedge block 4.4 is gradually squeezed in the folding process of moved end, to drive the interior shifting of gripping block 4, the clamping face of clamping plate 4.1 and drill bit
1 pushes against, and realizes the installation of the clamping to drill bit 1.
Drill bit 1 is needed replacing later, and by rotating backward screw shell 3.1, thread bush is moved up, and driving portion 3.2 is on
Move, driving portion 3.2 is dynamic from the clamping position on wedge block 4.4 to displacement is loosened, during driving portion 3.2 moves up, spring 8 it is anti-
Elastic force drives the reset of gripping block 4, and clamping plate 4.1 returns in intrusion slot 16, repeats above-mentioned movement later, only passes through rotation spiral shell
The replacement to drill bit 1 can be realized in line sleeve 3.1, easy to operate.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (10)
1. a kind of more drill-bit changing device for being guided on bone drilling device automatically, it is characterised in that: including connecting for receiving drill bit
Connect casing, the gripping block for clamping drill bit and the actuator for driving the gripping block to move radially at end, the set
Corresponding position is equipped with the consistent via hole of clamping direction of axis and the gripping block on pipe, and the gripping block passes through the via hole,
Elastic component, and the clamping in the elastic force direction of the elastic component and the gripping block are connected between described sleeve pipe and the gripping block
Direction is consistent, is additionally provided in described sleeve pipe for realizing the positioning device of Primary Location is carried out to drill bit.
2. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 1, it is characterised in that:
The positioning device includes being arranged in described sleeve pipe for resisting the magnet of drill bit connecting pin and for assisting drill bit
The silica gel ring of positioning, the silica gel ring are located at the lower section of the magnet.
3. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 2, it is characterised in that:
The elastic component is set between the outer wall and the gripping block of described sleeve pipe.
4. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 3, it is characterised in that:
The gripping block include be located at described sleeve pipe in and for realizing the clamping plate clamped for drill bit, be located at the via hole in and
The link block being fixedly connected with the clamping plate and the driving plate being fixedly connected outside described sleeve pipe and with the link block, institute
Elastic component is stated between the outer wall and the driving plate of described sleeve pipe, wedge block is fixedly connected in the driving plate, it is described
Wedge block includes loosening position and clamping position, the upper end loosened position and be located at the wedge block, and the clamping position is located at the wedge
The lower end of shape block, the driving end of the actuator and the wedge block contradict.
5. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 4, it is characterised in that:
The elastic component is spring and is circumferentially evenly arranged at least two along the driving plate.
6. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 4 or 5, feature exist
In: the clamping face of the clamping plate is arcwall face.
7. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 6, it is characterised in that:
It further include set on the position limiting structure between described sleeve pipe and the gripping block.
8. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 7, it is characterised in that:
The position limiting structure includes being symmetricly set on the sliding block of the driving plate upper and lower side and being set to sliding with the sliding block outside described sleeve pipe
The sliding slot of dynamic cooperation, sliding slot above the driving plate it is opening down, sliding slot below the driving plate it is opening up.
9. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 8, it is characterised in that:
The actuator includes the screw shell connecting with described sleeve pipe threaded upper ends and for driving the clamping plate diameter inwardly to move
Driving portion, the driving portion are set to the lower end of the screw shell, evacuation chamber are equipped in the driving portion.
10. a kind of more drill-bit changing device for being guided on bone drilling device automatically according to claim 9, feature exist
In: the outer wall of described sleeve pipe is equipped with guide pad and protective cover, and the sliding slot above the driving plate is set on the guide pad, institute
The sliding slot below driving plate is stated to be set on the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153563.7A CN109893204A (en) | 2019-02-28 | 2019-02-28 | A kind of more drill-bit changing device for being guided on bone drilling device automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153563.7A CN109893204A (en) | 2019-02-28 | 2019-02-28 | A kind of more drill-bit changing device for being guided on bone drilling device automatically |
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| CN109893204A true CN109893204A (en) | 2019-06-18 |
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ID=66945960
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910153563.7A Pending CN109893204A (en) | 2019-02-28 | 2019-02-28 | A kind of more drill-bit changing device for being guided on bone drilling device automatically |
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| CN (1) | CN109893204A (en) |
Cited By (2)
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| CN110680453A (en) * | 2019-10-09 | 2020-01-14 | 常州市第二人民医院 | Medical orthopaedic slotting device |
| CN115300042A (en) * | 2022-08-11 | 2022-11-08 | 中国人民解放军空军军医大学 | Preparation and use method of three-dimensional osteotomy guide plate capable of fixing depth and direction |
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| CN115300042A (en) * | 2022-08-11 | 2022-11-08 | 中国人民解放军空军军医大学 | Preparation and use method of three-dimensional osteotomy guide plate capable of fixing depth and direction |
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Address after: 610000 No.804, floor 8, unit 1, building 6, Zone D, West Zhigu, No.166, Wuxing Fourth Road, Wuhou New Town Management Committee, Wuhou District, Chengdu City, Sichuan Province Applicant after: CHENGDU ZHENSHI WEIDU TECHNOLOGY Co.,Ltd. Applicant after: AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN University Address before: 610000 No. 801, Building 8, Building 6, Unit 1, West Zhigu D District, 166 Wuxing Road, Wuhou New Town Management Committee, Chengdu, Sichuan Province Applicant before: CHENGDU ZHENSHI WEIDU TECHNOLOGY Co.,Ltd. Applicant before: Affiliated Zhongshan Hospital of Dalian University |
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Application publication date: 20190618 |