Device for improving measurement precision of laser tracker
By designing a laser tracker device including mobile handling vehicles and various adjustable components, the problem of low laser tracking measuring accuracy is solved, and the effect of higher measurement accuracy and device flatness is achieved.
Patent Information
- Application Number
- CN202411508501.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-01-21
AI Technical Summary
The measurement accuracy of existing laser trackers is greatly affected by the angle error and distance measurement error, and the level stability of the device and positional flatness are insufficient, which affects the measurement accuracy.
Design devices including mobile handling vehicles, lifting control racks, laser tracker storage boxes, lifting motor pumps, shrinking bottom columns, telescopic top columns, stabilized platforms, ranging and ranging controllers. By controlling the height of the top pillar of the telescopic motor pump, the overall height of the stable platform is adjusted, and the distance between the stabilizer monitor the distance between the stable platform and the lifting control rack to ensure the flatness of the stable platform.
It improves the measurement accuracy of the laser tracker, ensures the flatness and flexibility of the device, is convenient for installation and disassembly, and adapt to the use of different environments.
Smart Images
Figure CN119334248A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of laser trackers, and in particular to a device for improving the measurement accuracy of a laser tracker. Background Art
[0002] Laser tracker is a high-precision large-size measuring instrument in industrial measurement system, which has the characteristics of high precision, high efficiency and real-time measurement. Its measurement principle is to obtain the horizontal angle, vertical angle and side length from the center of the instrument to the center of the reflective ball, so as to calculate the coordinates of the center of the reflective ball. The factors affecting the measurement accuracy of the laser tracker itself are mainly angle measurement error and distance measurement error, and these errors are mainly caused by the incorrect geometric position of the internal components of the laser tracker. Although the angle measurement and distance measurement errors can be compensated by establishing an instrument geometric error model, the geometric error model has many parameters and is correlated, which makes the current accuracy level of the laser tracker not high. The traditional most important factor affecting the measurement accuracy of the laser tracker is the stability of the device and the flatness of the device placement position. To ensure the accuracy of the measurement angle, the measurement accuracy of the device can be further improved. Therefore, we redesigned a device to improve the measurement accuracy of the laser tracker. Summary of the invention
[0003] The object of the present invention is to provide a device for improving the measurement accuracy of a laser tracker.
[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for improving the measurement accuracy of a laser tracker, comprising a mobile transport vehicle, a lifting control frame is fixedly installed on the top of one side of the mobile transport vehicle, a laser tracker storage box is fixedly installed inside the lifting control frame, a lifting motor pump is fixedly connected to the top of one side of the laser tracker storage box, a retractable bottom column is telescopically connected to the top of one side of the lifting motor pump, a telescopic top column is fixedly connected to the top of one side of the retractable bottom column, a stabilizing platform is fixedly connected to the top of one side of the telescopic top column, a mounting groove is opened on the bottom end surface of one side of the stabilizing platform, a rangefinder is fixedly installed inside the mounting groove, and a rangefinder controller is fixedly installed on the top of one side of the stabilizing platform close to the rangefinder.
[0005] Preferably, a mounting frame is fixedly connected to the top end of one side of the stabilizing platform, a mounting limit groove is provided inside the mounting frame, a bottom stabilizing plate is detachably mounted on the top end of one side of the mounting frame, a mounting chassis column is fixedly connected to the bottom end of one side of the bottom stabilizing plate, a laser tracker body is movably mounted on the top end of one side of the bottom stabilizing plate, and a carrying handle is fixedly connected to the top end of one side of the bottom stabilizing plate.
[0006] Preferably, the positions of the distance measuring controller and the distance measuring device correspond one to one, the number of the distance measuring devices is four, and the four distance measuring devices are distributed at the four corners of the bottom end of the stabilizing platform. The connection relationship between the mounting chassis column and the mounting frame is a movable snap connection.
[0007] Preferably, a lifting controller is fixedly installed on the outer wall of one side of the lifting control frame, a lifting control connecting line is fixedly connected between the lifting controller and the lifting motor pump, a moving universal wheel is rotatably connected to the bottom end of one side of the mobile transport vehicle, a support plate is fixedly connected to the top end of one side of the mobile transport vehicle, a threaded fastening cone is movably installed inside one side of the support plate, a rotating top plate is fixedly connected to the top end of one side of the threaded fastening cone, a connecting shaft is rotatably connected to the top end of one side of the mobile transport vehicle, and a pushing handrail is fixedly welded to the top end of one side of the connecting shaft.
[0008] Preferably, the threaded fastening cone passes through the interior of the support plate, the connection relationship between the threaded fastening cone and the support plate is a threaded connection, the number of the threaded fastening cones is several, and the several threaded fastening cones are symmetrically distributed on the top ends of both sides of the mobile transport vehicle.
[0009] Preferably, a storage box controller is fixedly mounted on the top surface of one side of the laser tracker storage box, a backup power box is fixedly mounted inside one side of the laser tracker storage box, a power connection slot is provided on the front of one side of the backup power box, a placement rack is fixedly mounted inside the laser tracker storage box, a connecting hole is provided on the surface of one side of the placement rack, and a cooling fan is fixedly mounted on the bottom surface of one side of the mobile transport vehicle close to the lifting control connecting line.
[0010] Preferably, a temperature and humidity monitor is fixedly installed on the inner wall of one side of the laser tracker storage box, a thermometer is fixedly connected to the top of one side of the temperature and humidity monitor, a humidity monitor is fixedly installed on the top of one side of the temperature and humidity monitor, a monitoring connecting line is fixedly connected between the temperature and humidity monitor and the storage box controller, a cover body shaft is rotatably connected to the top of one side of the laser tracker storage box, a sealing top cover is fixedly connected to one side of the cover body shaft, and a cover body handle is fixedly connected to the top of one side of the sealing top cover.
[0011] Preferably, the cooling fan is located due west of the placement rack, the number of the connecting holes is several, and the connecting holes are distributed in a matrix on the surface of the placement rack, the bottom stabilizing plate is placed inside the laser tracker storage box, and the bottom stabilizing plate is placed on the placement rack.
[0012] Compared with the related art, the device for improving the measurement accuracy of the laser tracker provided by the present invention has the following beneficial effects: The present invention provides a device for improving the measurement accuracy of a laser tracker. A lifting motor pump is provided to control the telescopic height of a telescopic top column inside a stabilizing platform, and the overall height position of the stabilizing platform is adjusted. A rangefinder inside an installation groove is used to directly monitor the distance between the stabilizing platform and the top surface of a lifting control frame, so as to ensure the lifting and lowering horizontal positions of multiple positions at the bottom of the stabilizing platform and the overall flatness of the stabilizing platform. A chassis column is directly installed inside an installation limit groove, and the laser tracker body can be directly used, so as to facilitate installation and disassembly.
[0013] The present invention provides a device for improving the measurement accuracy of a laser tracker. The device facilitates appropriate adjustment of the position of a mobile transport vehicle by arranging movable universal wheels and a pushing handrail. The threaded fastening cone is rotated by rotating a top plate, and the threaded fastening cone is directly inserted into the soil. The threaded fastening cone is used to support the ground instead of the movable universal wheel, thereby avoiding the problem that the overall height of the mobile transport vehicle cannot be adjusted when the ground is uneven, and further ensuring the flexibility of the device to be adjusted according to the usage certificate.
[0014] The present invention provides a device for improving the measurement accuracy of a laser tracker. When a laser tracker body is not in use, the device can be directly placed inside a laser tracker storage box and on a placement rack. First, a heat dissipation fan can be used to dissipate heat for the laser tracker body. Second, a power connection slot on a backup power box can be used to connect a line to achieve charging operations, thereby ensuring the use effect of the laser tracker body in different environments. A temperature and humidity monitor can be used to monitor the temperature and humidity inside the laser tracker storage box in real time, and the temperature and humidity can be directly transmitted to a storage box controller. This ensures the temperature and humidity inside the laser tracker storage box, thereby ensuring the service life of the laser tracker body. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal cross-sectional structure of the lifting control frame of the present invention; Figure 3 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A; Figure 4 It is a schematic diagram of the overall bottom view of the device of the present invention; Figure 5 It is a schematic diagram of the disassembly structure of the mounting chassis column and the mounting frame of the present invention; Figure 6 It is a schematic diagram of the internal top view of the laser tracker storage box of the present invention; Figure 7 It is a schematic diagram of the internal top view of the laser tracker storage box of the present invention; Figure 8It is a schematic diagram of the structure of the temperature and humidity monitor of the present invention.
[0016] Numbers in the figure: 1. Mobile transporter; 2. Lifting control frame; 3. Laser tracker storage box; 4. Lifting motor pump; 5. Retractable bottom column; 6. Telescopic top column; 7. Stabilizing table; 8. Distance controller; 9. Mounting slot; 10. Distance finder; 11. Mounting frame; 12. Mounting limit slot; 13. Bottom stabilizing plate; 14. Mounting chassis column; 15. Laser tracker body; 16. Carrying handle; 17. Lifting controller; 18. Lifting control connection line; 19. Mobile universal wheel; 20. Support plate; 21. Threaded fastening cone; 22. Rotating top plate; 23. Connecting shaft; 24. Pushing handrail; 25. Storage box controller; 26. Backup power box; 27. Power connection slot; 28. Placement rack; 29. Connecting hole; 30. Cooling fan; 31. Temperature and humidity monitor; 32. Thermometer; 33. Humidity monitor; 34. Monitoring connecting line; 35. Cover body shaft; 36. Sealed top cover; 37. Cover body handle. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Embodiment 1:
[0018] See also Figure 1-8The present invention provides a technical solution: a device for improving the measurement accuracy of a laser tracker, comprising a mobile transport vehicle 1, a lifting control frame 2 is fixedly installed on the top of one side of the mobile transport vehicle 1, a laser tracker storage box 3 is fixedly installed inside the lifting control frame 2, a lifting motor pump 4 is fixedly connected to the top of one side of the laser tracker storage box 3, a retractable bottom column 5 is telescopically connected to the top of one side of the lifting motor pump 4, a retractable top column 6 is fixedly connected to the top of one side of the retractable bottom column 5, a stabilizing platform 7 is fixedly connected to the top of one side of the retractable top column 6, a mounting groove 9 is opened on the bottom end surface of one side of the stabilizing platform 7, a rangefinder 10 is fixedly installed inside the mounting groove 9, and a side of the stabilizing platform 7 close to the rangefinder 10 A distance measuring controller 8 is fixedly installed on the top, a mounting frame 11 is fixedly connected to the top of one side of the stabilizing platform 7, a mounting limit groove 12 is opened inside the mounting frame 11, a bottom stabilizing plate 13 is detachably installed on the top of one side of the mounting frame 11, a mounting chassis column 14 is fixedly connected to the bottom end of one side of the bottom stabilizing plate 13, a laser tracker body 15 is movably installed on the top of one side of the bottom stabilizing plate 13, a carrying handle 16 is fixedly connected to the top of one side of the bottom stabilizing plate 13, the positions of the distance measuring controller 8 and the rangefinder 10 correspond one to one, there are four rangefinders 10, and the four rangefinders 10 are distributed at the four corners of the bottom end of the stabilizing platform 7, and the connection relationship between the mounting chassis column 14 and the mounting frame 11 is a movable snap-in connection.
[0019] In the implementation scheme, a lifting motor pump 4 is provided to control the telescopic height of the telescopic top column 6 inside the stabilizing platform 7, and to adjust the overall height position of the stabilizing platform 7. The rangefinder 10 inside the mounting groove 9 is used to directly monitor the distance between the stabilizing platform 7 and the top surface of the lifting control frame 2, to ensure the lifting and lowering horizontal positions of multiple positions at the bottom of the stabilizing platform 7, and to ensure the overall flatness of the stabilizing platform 7. The chassis column 14 is directly installed inside the mounting limit groove 12, and the laser tracker body 15 can be used directly, which facilitates installation and disassembly. Embodiment 2:
[0020] See also Figure 1-8As shown, on the basis of Embodiment 1, the present invention provides a technical solution: a lifting controller 17 is fixedly installed on the outer wall of one side of the lifting control frame 2, a lifting control connecting line 18 is fixedly connected between the lifting controller 17 and the lifting motor pump 4, a moving universal wheel 19 is rotatably connected to the bottom end of one side of the mobile transport vehicle 1, a support plate 20 is fixedly connected to the top of one side of the mobile transport vehicle 1, a threaded fastening cone 21 is movably installed inside one side of the support plate 20, a rotating top plate 22 is fixedly connected to the top of one side of the threaded fastening cone 21, a connecting shaft 23 is rotatably connected to the top of one side of the mobile transport vehicle 1, a pushing handrail 24 is fixedly welded to the top of one side of the connecting shaft 23, the threaded fastening cone 21 passes through the interior of the support plate 20, the connection relationship between the threaded fastening cone 21 and the support plate 20 is a threaded connection, the number of the threaded fastening cones 21 is several, and the several threaded fastening cones 21 are symmetrically distributed on the tops of both sides of the mobile transport vehicle 1.
[0021] In the implementation case, the movable universal wheel 19 and the pushing handrail 24 are provided to facilitate the appropriate adjustment of the position of the mobile transport vehicle 1. The threaded fastening cone 21 is rotated by rotating the top plate 22, and the threaded fastening cone 21 is directly inserted into the soil. The threaded fastening cone 21 is used to support the ground instead of the movable universal wheel 19, thereby avoiding the problem that the overall height of the mobile transport vehicle 1 cannot be adjusted when the ground is uneven, and further ensuring the flexibility of the device to be adjusted using the certificate. Embodiment three:
[0022] See also Figure 1-8 As shown, on the basis of the first embodiment, the present invention provides a technical solution: a storage box controller 25 is fixedly installed on the top surface of one side of the laser tracker storage box 3, a backup power box 26 is fixedly installed inside one side of the laser tracker storage box 3, a power connection slot 27 is provided on the front side of the backup power box 26, a placement rack 28 is fixedly installed inside the laser tracker storage box 3, a connecting hole 29 is provided on one side surface of the placement rack 28, a cooling fan 30 is fixedly installed on the bottom surface of one side of the mobile transport vehicle 1 close to the lifting control connecting line 18, a temperature and humidity monitor 31 is fixedly installed on the inner wall of one side of the laser tracker storage box 3, and a top of one side of the temperature and humidity monitor 31 is fixedly connected to the A thermometer 32 is connected, a humidity monitor 33 is fixedly installed on the top of one side of the temperature and humidity monitor 31, a monitoring connection line 34 is fixedly connected between the temperature and humidity monitor 31 and the storage box controller 25, a cover shaft 35 is rotatably connected to the top of one side of the laser tracker storage box 3, a sealing top cover 36 is fixedly connected to one side of the cover shaft 35, a cover handle 37 is fixedly connected to the top of one side of the sealing top cover 36, the cooling fan 30 is located due west of the placement rack 28, the number of connecting holes 29 is several, and the several connecting holes 29 are distributed in a matrix on the surface of the placement rack 28, the bottom stabilizing plate 13 is placed inside the laser tracker storage box 3, and the bottom stabilizing plate 13 is placed on the placement rack 28.
[0023] In the implementation case, the laser tracker body 15 can be placed directly inside the laser tracker storage box 3 and on the placement rack 28 when not in use. First, the heat dissipation operation of the laser tracker body 15 can be performed by the heat dissipation fan 30. Second, the power connection slot 27 on the backup power box 26 can be connected to the line to realize the charging operation, thereby ensuring the use effect of the laser tracker body 15 in different environments. The temperature and humidity monitor 31 can monitor the temperature and humidity inside the laser tracker storage box 3 in real time and transmit it directly to the storage box controller 25. The temperature and humidity inside the laser tracker storage box 3 can be guaranteed, thereby ensuring the service life of the laser tracker body 15.
[0024] Working principle: By setting the lifting motor pump 4 to control the telescopic height of the telescopic top column 6 inside the stabilizing platform 7, the overall height position of the stabilizing platform 7 is adjusted, and the distance between the stabilizing platform 7 and the top surface of the lifting control frame 2 is directly monitored by the rangefinder 10 inside the installation groove 9, so as to ensure the lifting and lowering horizontal position effect of multiple positions at the bottom of the stabilizing platform 7 and the overall flatness of the stabilizing platform 7. The chassis column 14 is directly installed inside the installation limit groove 12, and the laser tracker body 15 can be directly used, which is convenient for installation and disassembly; By setting the movable universal wheel 19 and the pushing handrail 24, it is convenient to properly adjust the position of the mobile transport vehicle 1. By rotating the top plate 22 to rotate the threaded fastening cone 21, the threaded fastening cone 21 is directly inserted into the soil, and the threaded fastening cone 21 is used to support the ground instead of the movable universal wheel 19, so as to avoid the problem that the overall height of the mobile transport vehicle 1 cannot be adjusted when the ground is uneven, and further ensure the flexibility of the device to be adjusted by using the certificate; By setting the laser tracker body 15 so that it is not in use, it can be directly placed inside the laser tracker storage box 3 and on the placement rack 28. First, the heat dissipation operation of the laser tracker body 15 can be performed by the heat dissipation fan 30. Second, the power connection slot 27 on the backup power box 26 can be connected to the line to achieve charging operation, thereby ensuring the use effect of the laser tracker body 15 in different environments. The temperature and humidity monitor 31 can monitor the temperature and humidity inside the laser tracker storage box 3 in real time and transmit it directly to the storage box controller 25. This can ensure the temperature and humidity inside the laser tracker storage box 3, thereby ensuring the service life of the laser tracker body 15.
Claims
1. A device for improving the measurement accuracy of a laser tracker, comprising a mobile transport vehicle (1), a lifting control frame (2) being fixedly mounted on the top of one side of the mobile transport vehicle (1), characterized in that: A laser tracker storage box (3) is fixedly installed inside the lifting control frame (2), a lifting motor pump (4) is fixedly connected to the top of one side of the laser tracker storage box (3), a retractable bottom column (5) is telescopically connected to the top of one side of the lifting motor pump (4), a retractable top column (6) is fixedly connected to the top of one side of the retractable bottom column (5), a stabilizing platform (7) is fixedly connected to the top of one side of the retractable top column (6), a mounting groove (9) is provided on the bottom surface of one side of the stabilizing platform (7), a rangefinder (10) is fixedly installed inside the mounting groove (9), and a rangefinder controller (8) is fixedly installed on the top of one side of the stabilizing platform (7) close to the rangefinder (10).
2. The device for improving the measurement accuracy of a laser tracker according to claim 1, characterized in that: A mounting frame (11) is fixedly connected to the top of one side of the stabilizing platform (7), a mounting limit groove (12) is provided inside the mounting frame (11), a bottom stabilizing plate (13) is detachably mounted to the top of one side of the mounting frame (11), a mounting chassis column (14) is fixedly connected to the bottom of one side of the bottom stabilizing plate (13), a laser tracker body (15) is movably mounted to the top of one side of the bottom stabilizing plate (13), and a carrying handle (16) is fixedly connected to the top of one side of the bottom stabilizing plate (13).
3. The device for improving the measurement accuracy of a laser tracker according to claim 2, characterized in that: The positions of the distance measuring controller (8) and the distance measuring device (10) correspond one to one. The number of the distance measuring devices (10) is four. The four distance measuring devices (10) are distributed at the four corners of the bottom of the stabilizing platform (7). The connection relationship between the mounting chassis column (14) and the mounting frame (11) is a movable snap connection.
4. The device for improving the measurement accuracy of a laser tracker according to claim 1, characterized in that: A lifting controller (17) is fixedly mounted on an outer wall of one side of the lifting control frame (2); a lifting control connecting line (18) is fixedly connected between the lifting controller (17) and the lifting motor pump (4); a moving universal wheel (19) is rotatably connected to the bottom end of one side of the mobile transport vehicle (1); a support plate (20) is fixedly connected to the top end of one side of the mobile transport vehicle (1); a threaded fastening cone (21) is movably mounted inside one side of the support plate (20); a rotating top plate (22) is fixedly connected to the top end of one side of the threaded fastening cone (21); a connecting shaft (23) is rotatably connected to the top end of one side of the mobile transport vehicle (1); and a pushing handrail (24) is fixedly welded to the top end of one side of the connecting shaft (23).
5. The device for improving the measurement accuracy of a laser tracker according to claim 4, characterized in that: The threaded fastening cone (21) passes through the interior of the support plate (20); the connection relationship between the threaded fastening cone (21) and the support plate (20) is a threaded connection; there are a plurality of threaded fastening cones (21), and the plurality of threaded fastening cones (21) are symmetrically distributed on the top ends of both sides of the mobile transport vehicle (1).
6. The device for improving the measurement accuracy of a laser tracker according to claim 1, characterized in that: A storage box controller (25) is fixedly mounted on the top surface of one side of the laser tracker storage box (3); a backup power box (26) is fixedly mounted inside one side of the laser tracker storage box (3); a power connection slot (27) is provided on the front side of one side of the backup power box (26); a placement rack (28) is fixedly mounted inside the laser tracker storage box (3); a connecting hole (29) is provided on the surface of one side of the placement rack (28); and a cooling fan (30) is fixedly mounted on the bottom surface of one side of the mobile transport vehicle (1) close to the lifting control connection line (18).
7. The device for improving the measurement accuracy of a laser tracker according to claim 1, characterized in that: A temperature and humidity monitor (31) is fixedly mounted on the inner wall of one side of the laser tracker storage box (3); a thermometer (32) is fixedly connected to the top of one side of the temperature and humidity monitor (31); a humidity monitor (33) is fixedly mounted to the top of one side of the temperature and humidity monitor (31); a monitoring connection line (34) is fixedly connected between the temperature and humidity monitor (31) and the storage box controller (25); a cover shaft (35) is rotatably connected to the top of one side of the laser tracker storage box (3); a sealing top cover (36) is fixedly connected to one side of the cover shaft (35); and a cover handle (37) is fixedly connected to the top of one side of the sealing top cover (36).
8. The device for improving the measurement accuracy of a laser tracker according to claim 7, characterized in that: The heat dissipation fan (30) is located due west of the placement rack (28), the number of the communication holes (29) is multiple, and the multiple communication holes (29) are distributed in a matrix on the surface of the placement rack (28), the bottom stabilizing plate (13) is placed inside the laser tracker storage box (3), and the bottom stabilizing plate (13) is placed on the placement rack (28).