CN219121332U - Auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner - Google Patents
Auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner Download PDFInfo
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- CN219121332U CN219121332U CN202320111160.8U CN202320111160U CN219121332U CN 219121332 U CN219121332 U CN 219121332U CN 202320111160 U CN202320111160 U CN 202320111160U CN 219121332 U CN219121332 U CN 219121332U
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Abstract
The utility model discloses an auxiliary device for acquiring a hydraulic physical model form based on a three-dimensional laser scanner, and belongs to the technical field of three-dimensional scanning. The auxiliary device comprises a grid sliding rail, a hanging beam and a movement mechanism, wherein the hanging beam is arranged on the grid sliding rail and fixed on the roof, the movement mechanism is movably arranged on the grid sliding rail, and the movement mechanism is used for bearing the three-dimensional laser scanner to move on the grid sliding rail. The utility model provides a stable motion plane for the three-dimensional laser scanner, the scanner moves on the grid slide rail which is horizontally fixed to change the scanning position, the relative relation of a plurality of groups of scanning data coordinate systems can be determined by the position of the three-dimensional laser scanner on the grid slide rail, the difference of the z-axis direction does not exist, the problem of unification of a plurality of groups of data coordinates is simplified, a target ball is not required to be arranged in the scanning process, the dependence of the traditional target ball calibration is avoided, the error caused by the manual calibration is reduced, the measurement precision is improved, and the improvement of the data processing work efficiency is facilitated.
Description
Technical Field
The utility model belongs to the technical field of three-dimensional scanning, and particularly relates to an auxiliary device for acquiring a hydraulic physical model form based on a three-dimensional laser scanner.
Background
In a hydraulic physical model test, we often need to make a fine scale scaling model, and the deformation of the model structure during the test also needs to be measured accurately. Currently, three-dimensional laser scanners are important tools for achieving accurate measurements based on research requirements.
In the prior art, the three-dimensional laser scanner has a disadvantage that the scanning range is fixed, the farther from the instrument, the lower the precision is, the characteristic makes us unable to scan the model at one time in the process of scanning the model, the model needs to be scanned from different angles, multiple sets of coordinate data are obtained through more than 3 fixed positions, and then the coordinates among the multiple sets of data are unified for the target ball with fixed size. But in the process of unifying the data coordinate system, the processing is complicated, a series of secondary errors can occur, and the inconvenience of the existing three-dimensional laser scanner in use is reflected.
Disclosure of Invention
The utility model aims to: an auxiliary device for acquiring the form of a hydraulic physical model based on a three-dimensional laser scanner is provided to solve the problems in the prior art.
The technical scheme is as follows: the auxiliary device comprises a grid sliding rail, a hanging beam and a moving mechanism, wherein the hanging beam is arranged on the grid sliding rail and fixed on a roof, the moving mechanism is movably arranged on the grid sliding rail and used for bearing the three-dimensional laser scanner to move on the grid sliding rail.
Further, the grid slide rail is formed by staggered cross rails and longitudinal rails, the cross rails and the longitudinal rails are in the same horizontal plane, the end parts of the cross rails and the longitudinal rails at the outermost side of the grid slide rail are respectively provided with a bubble level meter, the cross rails and the longitudinal rails are respectively provided with a ball slide groove, and the ball slide grooves are matched with a movement mechanism.
Further, the motion mechanism comprises a scanner mounting plate, a control unit, a connecting rod, a driving assembly and a sliding piece, wherein the sliding piece is connected in the ball sliding groove, the scanner mounting plate is arranged below the sliding piece, the three-dimensional laser scanner is mounted on the lower surface of the scanner mounting plate, the sliding piece is connected with the scanner mounting plate through the connecting rod, the driving assembly is mounted on the upper surface of the scanner mounting plate, the output end of the driving assembly penetrates through the sliding piece to be matched with the grid sliding rail, and the driving assembly is electrically connected with the control unit.
Further, the slider includes roof and ball piece, install ball piece on the roof, ball piece and ball spout cooperation, set up the lift through-hole on the roof, the lift through-hole is located the drive assembly output directly over.
Further, the quantity of drive assembly is four groups, four groups drive assembly is the square distribution on the scanner mounting panel, drive assembly includes electric jar, driving motor and drive wheel, the electric jar is installed on the scanner mounting panel, driving motor is installed to the output of electric jar, the drive wheel is installed to driving motor's output, drive wheel and net slide rail lateral wall cooperation.
Further, a suspension cable is connected between the grid sliding rail and the hanging beam, the suspension cable is of a telescopic structure, and the suspension cable is matched with the bubble level.
The beneficial effects are that: the utility model provides a stable movement plane for the three-dimensional laser scanner, the test model is arranged below the three-dimensional laser scanner, the physical model is scanned, the scanner moves on the grid slide rail which is horizontally fixed to change the scanning position, the relative relation of a plurality of groups of scanning data coordinate systems can be determined by the position of the three-dimensional laser scanner on the grid slide rail, the difference in the z-axis direction does not exist, then a plurality of groups of measuring data are unified to the same coordinate system by the relation among the coordinate systems, the problem of unification of a plurality of groups of data coordinates is simplified, a target ball is not required to be arranged in the scanning process, the dependence of the traditional target ball calibration is avoided, the error caused by manual calibration is reduced, the measuring precision is improved, and the improvement of the data processing work efficiency is facilitated.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged view of the present utility model at a in fig. 1.
Fig. 3 is a schematic view of the structure of the movement mechanism in the present utility model.
Fig. 4 is a schematic view of the structure of the slider according to the present utility model.
Fig. 5 is a schematic view of the structure of the driving assembly in the present utility model.
The reference numerals are: 1. a grid slide rail; 11. a transverse rail; 12. a longitudinal rail; 13. a ball chute; 14. a bubble level; 2. a hanging beam; 3. a suspension cable; 4. a movement mechanism; 41. a scanner mounting plate; 42. a control unit; 43. a connecting rod; 44. a drive assembly; 441. an electric cylinder; 442. a driving motor; 443. a driving wheel; 45. a slider; 451. a top plate; 452. a sliding ball piece; 453. lifting the through hole.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
As shown in fig. 1, an auxiliary device for acquiring a hydraulic physical model form based on a three-dimensional laser scanner comprises a grid slide rail 1, a hanging beam 2 and a movement mechanism 4, wherein the hanging beam 2 is installed on the grid slide rail 1, the hanging beam is fixed on a roof, the movement mechanism 4 is movably installed on the grid slide rail 1, and the movement mechanism 4 is used for bearing the three-dimensional laser scanner to move on the grid slide rail 1.
The grid slide rail 1 provides a plane motion platform for the motion mechanism 4, the motion mechanism 4 moves above the physical model along the grid slide rail 1 with the three-dimensional laser scanner, a power source in the motion process is provided by the motion mechanism 4, the motion precision of the three-dimensional laser scanner is guaranteed through the matching of the motion mechanism 4 and the grid slide rail, compared with the traditional scanning mode of dividing a plurality of groups of fixed three-dimensional laser scanners, a target ball is not required to be arranged, the dependence of the traditional target ball calibration is avoided, the coordinate of a scanning Z axis is constant, the difficulty is lower due to the follow-up data integration, and the auxiliary effect of acquiring the hydraulic physical model form by the three-dimensional laser scanner is obvious.
As shown in fig. 1-2, the grid slide rail 1 is formed by transverse rails 11 and longitudinal rails 12 which are distributed in a staggered manner, the transverse rails 11 and the longitudinal rails 12 are positioned on the same horizontal plane, air bubble levels 14 are respectively arranged at the end parts of the transverse rails 11 and the longitudinal rails 12 at the outermost side of the grid slide rail 1, round ball slide grooves 13 are respectively formed in the transverse rails 11 and the longitudinal rails 12, and the round ball slide grooves 13 are matched with the movement mechanism 4. A suspension rope 3 is connected between the grid slide rail 1 and the hanging beam 2, the suspension rope 3 is of a telescopic structure, and the suspension rope 3 is matched with the bubble level 14.
The grid slide rail 1 provides a sliding station for the movement mechanism 4 through the ball slide groove 13, the movement mechanism 4 is allowed to move stably on the grid slide rail 1, the grid slide rail 1 is matched with the suspension ropes 3, the concentrated stress of the grid slide rail 1 can be reduced by the suspension ropes 3, the structural deformation of the grid slide rail 1 can be corrected by the telescopic adjustment of the suspension ropes 3, the horizontal arrangement of the grid slide rail 1 is ensured, and the guarantee is provided for the stable operation of the movement mechanism 4.
As shown in fig. 3, the motion mechanism 4 includes a scanner mounting plate 41, a control unit 42, a connecting rod 43, a driving component 44, and a sliding component 45, wherein the sliding component 45 is connected in the ball chute 13, the scanner mounting plate 41 is arranged below the sliding component 45, the three-dimensional laser scanner is mounted on the lower surface of the scanner mounting plate 41, the sliding component 45 is connected with the scanner mounting plate 41 through the connecting rod 43, the driving component 44 is mounted on the upper surface of the scanner mounting plate 41, the output end of the driving component 44 passes through the sliding component 45 to be matched with the grid slide rail 1, and the driving component 44 is electrically connected with the control unit 42.
The motion mechanism 4 is hoisted on the grid slide rail 1 through the sliding piece 45, the control unit 42 controls the driving assembly 44 to be matched with the grid slide rail 1, the abdication and the motion of the motion mechanism 4 on the grid slide rail 1 are realized, and the output end of the driving assembly 44 is matched with the grid slide rail 1, so that the positioning and the stable operation of the motion mechanism 4 are facilitated.
As shown in fig. 4, the sliding member 45 includes a top plate 451 and a sliding ball member 452, the sliding ball member 452 is mounted on the top plate 451, the sliding ball member 452 is matched with the ball chute 13, a lifting through hole 453 is formed in the top plate 451, and the lifting through hole 453 is located right above the output end of the driving assembly 44. The slide 45 is a key component of the movement mechanism 4 engaging the grid slide 1 and provides for the operation of the drive assembly 44.
As shown in fig. 5, the number of the driving assemblies 44 is four, the four driving assemblies 44 are distributed on the scanner mounting plate 41 in square shape, the driving assemblies 44 comprise electric cylinders 441, driving motors 442 and driving wheels 443, the electric cylinders 441 are mounted on the scanner mounting plate 41, the driving motors 442 are mounted at the output ends of the electric cylinders 441, the driving wheels 443 are mounted at the output ends of the driving motors 442, and the driving wheels 443 are matched with the side walls of the grid slide rail 1.
The electric cylinder 441 provides lifting output conditions for the driving motor 442, so that blocking of the grid slide rail 1 to the movement mechanism 4 can be avoided, a specific structure of the driving wheel 443 matched with the side wall of the grid slide rail 1 to realize driving can be selected from a gear-rack structure, namely, the side wall of the grid slide rail 1 is provided with a rack structure, and the driving wheel 443 is of a gear structure.
When the device is used, firstly, the suspension rope 3 is regulated until the bubble level 14 displays that the grid slide rail 1 is in a horizontally arranged posture, then, a physical model is placed below the grid slide rail 1, the control unit 42 controls the movement mechanism 4 to move to a proper position of the grid slide rail 1 (grid intersection point of the grid slide rail 1), in the movement process, when the transverse rail 11 or the longitudinal rail 12 of the grid slide rail 1 stops the movement mechanism 4 from continuously advancing, the control unit 42 controls the cylinder 441 in the blocked driving component 44 to shrink, so that the matching between the driving wheel 443 and the side wall of the grid slide rail 1 is invalid, at the moment, the blocked driving component 44 is positioned below the grid slide rail 1, the movement mechanism 4 can continuously advance under the action of the other two groups of driving components 44, if the movement mechanism 4 wants to stop at the intersection point, the control unit 42 controls the cylinder 441 which just shrinks to restore the original state, the four driving wheels 443 can be distributed around the intersection point, the movement mechanism 4 is positioned, and then the three-dimensional laser scanner can scan the physical model at the intersection point; if the movement mechanism 4 wants to go forward, the control unit 42 controls the electric cylinders 441 which are just contracted to restore to the original state, controls the originally expanded electric cylinders 441 to contract, and exchanges two groups of driving components 44 matched with the side walls of the grid slide rail 1, when the movement mechanism 4 smoothly passes through the intersection point obstruction, all the electric cylinders 441 are expanded, and the driving wheels 443 are matched with the side walls of the grid slide rail 1, so that the movement of the movement mechanism 4 on the grid slide rail 1 is realized. And (3) acquiring multiple groups of data at multiple intersection points of the grid slide rail 1 according to the requirement, and integrating the multiple groups of data.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solutions of the present utility model within the scope of the technical concept of the present utility model, and these equivalent changes all fall within the scope of the present utility model.
Claims (6)
1. The auxiliary device for acquiring the hydraulic physical model form based on the three-dimensional laser scanner is characterized by comprising a grid slide rail (1), a hanging beam (2) and a moving mechanism (4), wherein the hanging beam (2) is installed on the grid slide rail (1), the hanging beam is fixed on a roof, the moving mechanism (4) is movably installed on the grid slide rail (1), and the moving mechanism (4) is used for bearing the three-dimensional laser scanner to move on the grid slide rail (1).
2. The auxiliary device for acquiring the hydraulic engineering physical model form based on the three-dimensional laser scanner according to claim 1, wherein the grid sliding rail (1) is formed by transverse rails (11) and longitudinal rails (12) which are distributed in a staggered manner, the transverse rails (11) and the longitudinal rails (12) are positioned on the same horizontal plane, air bubble levels (14) are arranged at the end parts of the transverse rails (11) and the longitudinal rails (12) at the outermost side of the grid sliding rail (1), ball sliding grooves (13) are formed in the transverse rails (11) and the longitudinal rails (12), and the ball sliding grooves (13) are matched with the movement mechanism (4).
3. The auxiliary device based on the three-dimensional laser scanner for acquiring the hydraulic engineering physical model form according to claim 2, wherein the movement mechanism (4) comprises a scanner mounting plate (41), a control unit (42), a connecting rod (43), a driving component (44) and a sliding piece (45), the sliding piece (45) is connected in the ball sliding groove (13), the scanner mounting plate (41) is arranged below the sliding piece (45), the three-dimensional laser scanner is mounted on the lower surface of the scanner mounting plate (41), the sliding piece (45) is connected with the scanner mounting plate (41) through the connecting rod (43), the driving component (44) is mounted on the upper surface of the scanner mounting plate (41), the output end of the driving component (44) penetrates through the sliding piece (45) to be matched with the grid sliding rail (1), and the driving component (44) is electrically connected with the control unit (42).
4. The auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner according to claim 3, wherein the sliding part (45) comprises a top plate (451) and a sliding ball part (452), the sliding ball part (452) is installed on the top plate (451), the sliding ball part (452) is matched with the ball chute (13), a lifting through hole (453) is formed in the top plate (451), and the lifting through hole (453) is located right above the output end of the driving assembly (44).
5. The auxiliary device based on the three-dimensional laser scanner for acquiring the hydraulic engineering physical model form according to claim 4, wherein the number of the driving components (44) is four, the four driving components (44) are distributed on the scanner mounting plate (41) in a square shape, the driving components (44) comprise an electric cylinder (441), a driving motor (442) and a driving wheel (443), the electric cylinder (441) is mounted on the scanner mounting plate (41), the driving motor (442) is mounted at the output end of the electric cylinder (441), the driving wheel (443) is mounted at the output end of the driving motor (442), and the driving wheel (443) is matched with the side wall of the grid sliding rail (1).
6. The auxiliary device for acquiring the hydraulic physical model form based on the three-dimensional laser scanner according to claim 5, wherein a suspension cable (3) is connected between the grid slide rail (1) and the hanging beam (2), the suspension cable (3) is of a telescopic structure, and the suspension cable (3) is matched with the bubble level (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111160.8U CN219121332U (en) | 2023-01-16 | 2023-01-16 | Auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111160.8U CN219121332U (en) | 2023-01-16 | 2023-01-16 | Auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219121332U true CN219121332U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320111160.8U Active CN219121332U (en) | 2023-01-16 | 2023-01-16 | Auxiliary device for acquiring hydraulic physical model form based on three-dimensional laser scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219121332U (en) |
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2023
- 2023-01-16 CN CN202320111160.8U patent/CN219121332U/en active Active
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