Rapid positioning and fixing platform of portable coordinate measuring machine

Abstract

The utility model relates to the field of mechanical engineering, and discloses a rapid positioning and fixing platform of a portable coordinate measuring machine, which comprises a fixing table, a motor is fixedly connected to the inner wall of the fixing table, a control rod is fixedly connected to the driving end of the motor, and a rotating plate is fixedly connected to the top of the control rod. The two ends of the rotating plate are rotationally connected with transmission plates, the other ends of the transmission plates are fixedly connected with connecting rods, the tops of the connecting rods are fixedly connected with sliding blocks, the outer walls of the sides, close to each other, of the sliding blocks are fixedly connected with fixing plates, and the bottom of the fixing table is fixedly connected with a support adjusting assembly. The support adjusting assembly comprises a fixing column, and the top of the fixing column is rotationally connected to the bottom of the fixing table. According to the utility model, the fixture is adopted to keep stable in real time during three-dimensional coordinate detection, and the situation that the measured three-dimensional coordinates are accurate due to shaking during detection due to unstable fixation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering, and in particular to a rapid positioning and fixing platform for a portable coordinate measuring machine. Background Technology

[0002] Portable coordinate measuring machines (CMMs) include a laser tracker and a measuring arm. The laser tracker tracks the target by emitting a laser beam and measures the three-dimensional coordinates of the target point. It can be used for high-precision measurement of large workpieces and is widely used in aerospace, automotive manufacturing, and other fields. The measuring arm is made of lightweight, high-strength materials such as carbon fiber and can measure arbitrary spatial points and hidden points. It can perform various measurements, including geometric elements and three-dimensional coordinates.

[0003] For laser trackers, the ability to be securely fixed on the platform is crucial for accurate detection of three-dimensional coordinates. Generally, the laser tracker is fixed by rotating it through a threaded interface to make it tightly connected to the tripod and tightening it, or by using a magnetic base. Some laser trackers are designed with a magnetic base, which can be directly attached to a platform with magnetic adsorption capabilities.

[0004] In existing technologies, threaded connections may gradually loosen due to vibration in some vibrating environments, resulting in unstable fixation of the laser tracker. Magnetic force is insufficient for some measurement tasks that require high precision and high stability to ensure that the laser tracker remains fixed under various working conditions. Therefore, a portable coordinate measuring machine rapid positioning and fixing platform is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a convenient coordinate measuring machine with a rapid positioning and fixing platform, which aims to improve the problem of unstable fixing caused by threaded interfaces and magnetic fixation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick positioning and fixing platform for a portable coordinate measuring machine includes a fixed platform. A motor is fixedly connected to the inner wall of the fixed platform. A control rod is fixedly connected to the drive end of the motor. A rotating plate is fixedly connected to the top of the control rod. Transmission plates are rotatably connected to both ends of the rotating plate. A connecting rod is fixedly connected to the other end of the transmission plate. A slider is fixedly connected to the top of the connecting rod. A fixed plate is fixedly connected to the outer wall of the slider on the side closest to it. A bracket adjustment assembly is fixedly connected to the bottom of the fixed platform.

[0008] As a further description of the above technical solution:

[0009] The bracket adjustment assembly includes a fixed column, the top of which is rotatably connected to the bottom of the fixed platform. A telescopic column is slidably connected to the inner wall of the fixed column, and a fixed block is fixedly connected to the inner wall of the telescopic column. A return spring is fixedly connected to both sides of the fixed block, and a limit rod is fixedly connected to the other end of the return spring.

[0010] As a further description of the above technical solution:

[0011] The other end of the telescopic column is fixedly connected to a rotating rod, and a return spring is sleeved on the outer wall of the rotating rod;

[0012] As a further description of the above technical solution:

[0013] An adjusting gear ring is rotatably connected to the other end of the rotating rod, and a fixing gear ring is fixedly connected to the outer wall of the rotating rod;

[0014] As a further description of the above technical solution:

[0015] One end of the second return spring is fixedly connected to the bottom inner wall of the telescopic column, and the other end of the second return spring is fixedly connected to the outer wall of the adjusting gear ring.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the adjusting gear ring and the outer wall of the fixed gear ring are meshed with each other, and a support plate is fixedly connected to the outer wall of the adjusting gear ring;

[0018] As a further description of the above technical solution:

[0019] The top of the fixed platform is detachably connected to a base, and a laser tracker is fixedly connected to the top of the base;

[0020] As a further description of the above technical solution:

[0021] The outer wall of the fixed column is provided with multiple limiting holes, and the limiting rod is slidably connected to the inner wall of the limiting holes.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the base is placed on top of the fixed platform. At this time, the motor is started. The start of the motor drives the control rod to rotate. The rotation of the control rod drives the rotating plate to rotate. The rotation of the rotating plate drives the transmission plate to rotate inward. The inward rotation of the transmission plate drives the slider to move towards the fixed plate, thereby achieving the fixed plate clamping the base. This ensures that the base can remain stable in real time when detecting three-dimensional coordinates, preventing shaking during detection due to unstable fixing, which would affect the accuracy of the measured three-dimensional coordinates.

[0024] 2. In this utility model, by pulling the telescopic column, the telescopic column slides on the inner wall of the fixed column. At this time, the limiting rod slides on the inner wall of the fixed column. When the limiting rod slides on the inner wall of the fixed column, the return spring is in a contracted state. When the appropriate height is adjusted, the telescopic column stops sliding, and then the return spring releases its elastic potential energy to spring the limiting rod into the limiting hole, thereby achieving height adjustment. Then, by sliding the adjusting gear ring to both sides, the support plate is rotated. When it is rotated to a certain angle, the adjusting gear ring is released. At this time, the adjusting gear ring meshes with the fixed gear ring again, thereby fixing the support plate, so that the support plate can adapt to various terrains and more stably fix the laser tracker. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the rapid positioning and fixing platform of the portable coordinate measuring machine proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the limiting rod of the rapid positioning and fixing platform of the portable coordinate measuring machine proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the rotating plate of the rapid positioning and fixing platform of the portable coordinate measuring machine proposed in this utility model.

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Legend:

[0030] 1. Fixed platform; 2. Slider; 3. Fixed plate; 4. Motor; 5. Control rod; 6. Rotating plate; 7. Transmission plate; 8. Connecting rod; 9. Base; 10. Fixed block; 11. Limiting rod; 12. Return spring one; 13. Fixed column; 14. Telescopic column; 15. Support plate; 16. Fixed gear ring; 17. Adjusting gear ring; 18. Return spring two; 19. Rotating rod; 20. Laser tracker; 21. Limiting hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3This utility model provides an embodiment of a quick positioning and fixing platform for a portable coordinate measuring machine, including a fixing platform 1. A motor 4 is fixedly connected to the inner wall of the fixing platform 1. When it is necessary to position and fix the laser tracker 20, the motor 4 is started. The start of the motor 4 can drive the control rod 5 to rotate, thereby realizing the fixing operation of the laser tracker 20 and keeping the laser tracker 20 stable when detecting three-dimensional coordinates. The drive end of the motor 4 is fixedly connected to the control rod 5, and the top of the control rod 5 is fixedly connected to the rotating plate 6. The rotation of the control rod 5 drives the rotating plate 6 to rotate. Both ends of the rotating plate 6 are rotatably connected to the transmission plate 7. The rotation of the rotating plate 6 drives the transmission plate 7 to rotate inward.

[0033] A connecting rod 8 is fixedly connected to the other end of the transmission plate 7. The inward rotation of the transmission plate 7 drives the connecting rod 8 to move. A slider 2 is fixedly connected to the top of the connecting rod 8. The connecting rod 8 drives the slider 2 to move towards each other. A fixing plate 3 is fixedly connected to the outer wall of the side of the slider 2 that is close to each other. The movement of the slider 2 towards each other drives the fixing plate 3 to move towards each other, thereby achieving the fixing plate 3 clamping the base 9, thus firmly fixing the laser tracker 20 to the top of the fixing platform 1, preventing inaccurate three-dimensional coordinates due to unstable fixing and shaking during detection. A bracket adjustment component is fixedly connected to the bottom of the fixing platform 1, which can adjust the height and angle of the laser tracker 20 to adapt to different usage scenarios and ensure its stability. The base 9 is detachably connected to the top of the fixing platform 1, and the laser tracker 20 is fixedly connected to the top of the base 9.

[0034] Reference Figures 2 to 4 The bracket adjustment assembly includes a fixed column 13, the top of which is rotatably connected to the bottom of the fixed platform 1. A telescopic column 14 is slidably connected to the inner wall of the fixed column 13. When the laser tracker 20 needs to be fixed in one place, the telescopic column 14 is pulled, and the telescopic column 14 slides on the inner wall of the fixed column 13 to adjust the height of the laser tracker 20. A fixed block 10 is fixedly connected to the inner wall of the telescopic column 14. A return spring 12 is fixedly connected to both sides of the fixed block 10. When the limit rod 11 slides on the inner wall of the fixed column 13, the return spring 12 is in a contracted state. The other end of the return spring 12 is fixedly connected to the limit rod 11, which slides on the inner wall of the fixed column 13. When the appropriate height is reached, the telescopic column 14 stops sliding, and then the return spring 12 releases its elastic potential energy to spring the limit rod 11 into the limit hole 21, thereby realizing the height adjustment so that the laser tracker 20 can adapt to different height requirements.

[0035] The other end of the telescopic column 14 is fixedly connected to a rotating rod 19. A return spring 18 is sleeved on the outer wall of the rotating rod 19. The other end of the rotating rod 19 is rotatably connected to an adjusting gear ring 17. A fixed gear ring 16 is fixedly connected to the outer wall of the rotating rod 19. When facing a sloping ground, the angle can be adjusted to make the support more stable. At this time, the adjusting gear ring 17 is slid to both sides, and the return spring 18 is in a contracted state. When the outer wall of the adjusting gear ring 17 is no longer engaged with the fixed gear ring 16, the support plate 15 is rotated. When it is rotated to a certain angle, the adjusting gear ring 17 is released. The gear ring 17 engages with the fixed gear ring 16 again to fix the support plate 15, so that the support plate 15 can more stably fix the laser tracker 20. One end of the return spring 18 is fixedly connected to the bottom inner wall of the telescopic column 14, and the other end of the return spring 18 is fixedly connected to the outer wall of the adjusting gear ring 17. The outer wall of the adjusting gear ring 17 and the outer wall of the fixed gear ring 16 are meshed and connected to each other. The support plate 15 is fixedly connected to the outer wall of the adjusting gear ring 17. The outer wall of the fixed column 13 has multiple limiting holes 21, and the limiting rod 11 is slidably connected to the inner wall of the limiting hole 21.

[0036] Working principle: When the laser tracker 20 needs to be positioned and fixed, the base 9 is placed on top of the fixed platform 1. At this time, the motor 4 starts, which drives the control rod 5 to rotate. The rotation of the control rod 5 drives the rotating plate 6 to rotate. The rotation of the rotating plate 6 drives the transmission plate 7 to rotate inward. The inward rotation of the transmission plate 7 drives the slider 2 to move in the opposite direction, which in turn drives the fixed plate 3 to move in the opposite direction. This achieves the purpose of the fixed plate 3 clamping the base 9, thus firmly fixing the laser tracker 20 on top of the fixed platform 1. This ensures that the laser tracker 20 can remain stable in real time when detecting three-dimensional coordinates, preventing shaking during detection due to unstable fixing, which would affect the accuracy of the measured three-dimensional coordinates.

[0037] When the laser tracker 20 needs to be fixed in one place, pull the telescopic column 14. The telescopic column 14 slides on the inner wall of the fixed column 13. At this time, the limiting rod 11 slides on the inner wall of the fixed column 13. When the limiting rod 11 slides on the inner wall of the fixed column 13, the return spring 12 is in a contracted state. When the appropriate height is adjusted, stop sliding the telescopic column 14. Then, the return spring 12 releases its elastic potential energy and pushes the limiting rod 11 into the limiting hole 21, thereby realizing the height adjustment. When facing a sloping ground... When adjusting the angle, the bracket can be more securely fixed. At this time, the adjusting gear ring 17 is slid to both sides, and the return spring 18 is in a contracted state. When the outer wall of the adjusting gear ring 17 is no longer engaged with the fixed gear ring 16, the support plate 15 is rotated. When it is rotated to a certain angle, the adjusting gear ring 17 is released. At this time, the adjusting gear ring 17 engages with the fixed gear ring 16 again, thereby fixing the support plate 15. This allows the support plate 15 to adapt to various terrains and more securely fix the laser tracker 20.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Rapid positioning and fixing platform of portable coordinate measuring machine, comprising a fixed table (1), characterized in that: The inner wall of the fixed platform (1) is fixedly connected with a motor (4), the driving end of the motor (4) is fixedly connected with a control rod (5), the top of the control rod (5) is fixedly connected with a rotating plate (6), both ends of the rotating plate (6) are rotatably connected with a transmission plate (7), the other end of the transmission plate (7) is fixedly connected with a connecting rod (8), the top of the connecting rod (8) is fixedly connected with a sliding block (2), the outer wall of the side close to the sliding block (2) is fixedly connected with a fixed plate (3), and the bottom of the fixed platform (1) is fixedly connected with a support adjusting assembly.

2. The portable coordinate measuring machine rapid positioning and fixing platform according to claim 1, characterized in that: The support adjusting assembly comprises a fixed column (13), the top of the fixed column (13) is rotatably connected to the bottom of the fixed platform (1), the inner wall of the fixed column (13) is slidably connected with a telescopic column (14), the inner wall of the telescopic column (14) is fixedly connected with a fixed block (10), both sides of the fixed block (10) are fixedly connected with a reset spring (12), and the other end of the reset spring (12) is fixedly connected with a limiting rod (11).

3. The portable coordinate measuring machine rapid positioning fixture platform of claim 2, wherein: The other end of the telescopic column (14) is fixedly connected with a rotating rod (19), and the outer wall of the rotating rod (19) is sleeved with a reset spring (18).

4. The portable coordinate measuring machine rapid positioning and fixing platform according to claim 3, characterized in that: The other end of the rotating rod (19) is rotatably connected with an adjusting gear ring (17), and the outer wall of the rotating rod (19) is fixedly connected with a fixed gear ring (16).

5. The portable coordinate measuring machine rapid positioning fixture platform of claim 4, wherein: One end of the reset spring (18) is fixedly connected to the inner wall of the bottom of the telescopic column (14), and the other end of the reset spring (18) is fixedly connected to the outer wall of the adjusting gear ring (17).

6. The rapid positioning and fixing platform of the portable coordinate measuring machine according to claim 4, characterized in that: The outer wall of the adjusting gear ring (17) is in meshing connection with the outer wall of the fixed gear ring (16), and the outer wall of the adjusting gear ring (17) is fixedly connected with a supporting plate (15).

7. The portable coordinate measuring machine rapid positioning fixture platform of claim 1, wherein: The top of the fixed platform (1) is detachably connected with a base (9), and the top of the base (9) is fixedly connected with a laser tracker (20).

8. The rapid positioning and fixing platform of the portable coordinate measuring machine according to claim 2, characterized in that: A plurality of limiting holes (21) are formed in the outer wall of the fixed column (13), and the limiting rod (11) is slidably connected to the inner wall of the limiting hole (21).

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