CN209595773U - A kind of splicing control mechanism - Google Patents
A kind of splicing control mechanism Download PDFInfo
- Publication number
- CN209595773U CN209595773U CN201920063661.7U CN201920063661U CN209595773U CN 209595773 U CN209595773 U CN 209595773U CN 201920063661 U CN201920063661 U CN 201920063661U CN 209595773 U CN209595773 U CN 209595773U
- Authority
- CN
- China
- Prior art keywords
- rack gear
- splicing
- control mechanism
- gear
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000007 visual effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007408 cone-beam computed tomography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
A kind of splicing control mechanism provided by the utility model includes: the column driven by motor to be displaced in the height direction；It is installed on the first rack gear of column；It is installed on the second rack gear of splicing component；And it can be engaged between the first rack gear and the second rack gear and make the first rack gear and the second rack gear opposite gear run in the height direction.The splicing control mechanism precision of the utility model is high and at low cost.
Description
Technical field
The utility model relates to medical instruments field more particularly to a kind of splicing control mechanism (Stitching control
Mechanism).
Background technique
For CBCT dental imaging product, the larger visual field (FOV), the big FOV especially in height (Z-direction), according to city
Need and it is very popular.But due to current X-ray line image plate higher cost, from the viewpoint of product, direct big image
Plate is difficult to realize.
Other possibility schemes for obtaining larger FOV are the images that two reconstructions up and down are stacked mainly along Z-direction.Its advantage
It is that entire skull image can be read directly in dentist, is toggled between the upper and lower part image without being used in skull,
And the effect being absorbed in after operation or dental operation.
And in order to realize splicing function, need motor control system.For example, being closed in existing product using connecting method
And from two scan images for using two motor controls to obtain.Wherein, a motor is used to independently control splicing body,
One motor is used to independently control the movement of column.Splicing body and image scanning plate are respectively mounted on column.When wanting
When scanning big FOV image, two motors do not work first, and the image of first part is first obtained using image scanning plate；For
To second part image, while column motor drives image scanning plate to move up along the Z direction, the motor of splicing body is driven
Splicing body is moved down along the Z direction with speed identical with column motor, until image scanning terminates.System utilizes respective algorithms
Two-part image is synthesized, to obtain big visual field FOV.
Although the advantages of existing design is that two motors are beneficial to splicing and the design of column itself is free, still deposit
In following problems:
1) when there is control precision larger difference in the two motors, it is difficult to be reached between splicing control and column control
To good calibration, and in actual use because condition limitation cannot use same type of motor when, motor control
Precision problem can become even more serious；
2) in order to realize splicing function to design tool there are two servo-drive subsystem complex product；
3) cost of two motor servo-systems is too high.
Utility model content
In view of the above, the technical problem to be solved by the utility model is to provide a kind of high-precision and low cost
Splice control mechanism.
Splicing control mechanism provided by the utility model includes:
The column to be displaced in the height direction is driven by motor；
It is installed on the first rack gear of column；
It is installed on the second rack gear of splicing component；And
It can be engaged between the first rack gear and the second rack gear and make the first rack gear and the second rack gear opposite in the height direction
The gear of operation.
According to the utility model, a column motor is only needed when splicing function realizing, without second splicing motor.
Thus the connection scheme does not have there are two the error matching problem of motor cooperation control, is friendly for sufferer.
Preferably, first rack gear and the second rack gear can be selectively connectable by connector.
Preferably, the connector is by coupled first clutch and the control of the first bias spring to connect or disconnect
First rack gear and the second rack gear.
Preferably, the gear is axially transported by coupled second clutch and the control of the second bias spring along gear
It is dynamic, selectively to be engaged with first rack gear and the second rack gear.
Preferably, the flank of tooth of first rack gear and the second rack gear is oppositely arranged.
Preferably, being equipped with image scanning plate on the column.
According to following specific embodiments and attached drawing is referred to, is better understood with the above content of the utility model and other
Objects, features and advantages.
Detailed description of the invention
Fig. 1 shows a kind of structural schematic diagram of splicing control mechanism according to one implementation form of the utility model；
Fig. 2 shows the partial enlarged views for splicing control mechanism shown in Fig. 1；
Fig. 3 is the control flow chart of splicing control mechanism shown in FIG. 1.
Detailed description of the invention:
1, column；
2, splice component；
3, connector；
41,42, rack gear；
51,52, clutch；
61,62, spring；
7, gear.
Specific embodiment
The utility model is further illustrated below in conjunction with attached drawing and following embodiments, it should be appreciated that attached drawing and following implementations
Mode is merely to illustrate the utility model, rather than limits the utility model.
Fig. 1 shows a kind of splicing control mechanism according to one implementation form of the utility model, comprising: by motor drive with
The column being displaced in the height direction；It is installed on the first rack gear of column；It is installed on the second rack gear of splicing component；And it can nibble
Together between the first rack gear and the second rack gear and making the first rack gear and the second rack gear opposite gear run in the height direction.It should
Splice control mechanism use with rack gear to meshed gears structure.In gear rotation, the speed of each rack gear is consistent, but movement side
To opposite.
Specifically, in implementation form shown in Fig. 1, rack gear 41 is mounted on column 1.Figure is also equipped on column 1
As scanning plate (diagram is omitted).Column 1 can be moved up and down along the Z direction by column DC motor, and then with 41 He of carry-over bar
Image scanning plate moves up and down along the Z direction.
As shown in Figure 1, rack gear 42 is mounted on splicing component 2.And rack gear 41 and the flank of tooth of both rack gears 42 are oppositely arranged.
Gear 7 is mounted on fixed Z-direction position, and can pass through clutch 51 and bias spring 61 along the axial movement of gear to engage
Rack gear 41 and rack gear 42.Gear 7 is in disengaged orientation under default setting.
By default, when splicing function and closing, rack gear 41,42 is connected with each other by connector 3, connector 3 by
Clutch 52 and bias spring 62 control.Specifically, 52 signal of clutch be off when, keep by connector 3 by rack gear 41,
42 are fixed together.
Fig. 3 is the control flow chart of splicing control mechanism shown in FIG. 1.When receiving splicing from the user instruction,
The splicing control mechanism is in Splicing model, and motor starting is to carry out desired movement.
Specifically, when splicing function is triggered, above-mentioned splicing control mechanism is not acted on first, and during which image scanning plate is first
Complete the image scanning of first part；Then, splicing control mechanism starts to act on, and clutch 51 overcomes the bullet of bias spring 61
Power, so that gear 7 is engaged with rack gear 41,42.Clutch 52 makes the unlock of connector 3 to separate rack gear 41,42 simultaneously.
When column motor, which drives, to be risen, increase rack gear 41, while driving image scanning plate gradually to carry out image and sweeping
It retouches；It is rotated with hour rack 41 with moving gear 7, and gear 7 will be with the synchronous decline of carry-over bar 42, until column 1 completes splicing movement
After stop.System synthesizes two-part image according to respective algorithms later, to obtain big visual field FOV image.
Then splicing control mechanism enters the motion control stage of reset.
When column motor, which drives, to be declined, decline rack gear 41, and then gear 7 will synchronize with carry-over bar 42 and rise, until
Column 1 returns to the stopping of initial position rear column motor.
Clutch 52, which sends signal, returns to connector 3, to be fixedly connected with rack gear 41,42.At this point, passing through 51 He of clutch
Bias spring 61, gear 7 will switch back into non-engagement state from engaging with rack gear 41,42.
According to the utility model, the mobile calibration of splicing can be preferably realized, and interfere less with sufferer in splicing is mobile.
And only column motor driving control system reduces the complexity and cost of product.
Under the objective for the essential characteristic for not departing from the utility model, the utility model can be presented as diversified forms, therefore
Implementation form in the utility model is to be illustrative rather than definitive thereof, since the scope of the utility model is defined by the claims and
It is non-to be limited by specification, and fall in all changes in the full scope of equivalents of the range that claim defines or the range that it is defined
Change is understood to be included in the claims.
Claims (6)
1. a kind of splicing control mechanism characterized by comprising
The column to be displaced in the height direction is driven by motor；
It is installed on the first rack gear of column；
It is installed on the second rack gear of splicing component；And
It can be engaged between the first rack gear and the second rack gear and make the first rack gear and the second rack gear is opposite in the height direction runs
Gear.
2. splicing control mechanism according to claim 1, which is characterized in that
First rack gear and the second rack gear can be selectively connectable by connector.
3. splicing control mechanism according to claim 2, which is characterized in that the connector by coupled first from
Clutch and the control of the first bias spring are to connect or disconnect first rack gear and the second rack gear.
4. splicing control mechanism according to claim 1, which is characterized in that
The gear is axially moved by coupled second clutch and the control of the second bias spring along gear, with selectively
It is engaged with first rack gear and the second rack gear.
5. splicing control mechanism according to claim 1, which is characterized in that the flank of tooth of first rack gear and the second rack gear
It is oppositely arranged.
6. splicing control mechanism according to claim 1, which is characterized in that it is flat to be equipped with image scanning on the column
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063661.7U CN209595773U (en) | 2019-01-15 | 2019-01-15 | A kind of splicing control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063661.7U CN209595773U (en) | 2019-01-15 | 2019-01-15 | A kind of splicing control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209595773U true CN209595773U (en) | 2019-11-08 |
Family
ID=68400761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920063661.7U Expired - Fee Related CN209595773U (en) | 2019-01-15 | 2019-01-15 | A kind of splicing control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209595773U (en) |
-
2019
- 2019-01-15 CN CN201920063661.7U patent/CN209595773U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |