Levelness detection tool for three-coordinate measuring machine

Abstract

The utility model belongs to the technical field of detection tools, and particularly relates to a three-coordinate measuring machine levelness detection tool which comprises an outer frame, a rolling cavity is arranged between the top and the bottom of the outer frame in a penetrating mode, a first ball is arranged on the inner side of the rolling cavity in a rolling mode, and the inner side of the rolling cavity is in rolling connection with a rolling ball through the first ball. The bottom of the outer frame is provided with lower supporting legs, the top of the outer frame is provided with upper supporting legs, the tail ends of the lower supporting legs and the tail ends of the upper supporting legs are each provided with a conical head supporting rod in a magnetic attraction mode, the bottom of the outer frame is provided with a positioning support, the inner side of the positioning support is provided with a first guide rail, and the inner side of the first guide rail is in sliding connection with a lifting positioning block. According to the device, the levelness condition of a detection point can be rapidly confirmed, repeated alignment and adjustment are not needed, the detection efficiency can be improved, meanwhile, color marking can be conducted on the table top, and rapid confirmation of a problem point during follow-up repairing is helped.

Description

Technical Field

[0001] This utility model belongs to the field of testing tool technology, specifically relating to a coordinate measuring machine level testing tool. Background Technology

[0002] A coordinate measuring machine (CMM) is a high-precision, high-efficiency geometric dimension and shape measurement device, widely used in manufacturing, aerospace, automotive, electronics, mold making and other fields. In order to ensure the accuracy of the measurement, the guide rails used to move the measuring instrument and the machine table surface for placing the workpiece need to be kept level. However, during long-term use, the surfaces of the rails and table may become uneven due to mechanical fatigue, wear and other factors. In order to continue to ensure the accuracy of the measurement, it is necessary to check the levelness of various parts of the machine table and guide rails.

[0003] During inspection, mechanical or electronic levels are often used. Mechanical levels require repeated manual adjustments, resulting in low inspection efficiency, especially in areas with severe surface undulations where calibration time increases significantly. While electronic sensors can digitally display deviations, they require the installation of numerous sensors, leading to high costs. Therefore, we propose a coordinate measuring machine (CMM) levelness inspection tool. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a coordinate measuring machine leveling detection tool that can quickly confirm the levelness of the detection points without repeated alignment and adjustment, thereby improving detection efficiency. At the same time, it can mark the table surface with color to help quickly identify problem points during subsequent repairs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coordinate measuring machine leveling detection tool, comprising an outer frame, a rolling cavity extending through the top and bottom of the outer frame, a first ball bearing rolling inside the rolling cavity, the inner side of the rolling cavity being connected to a ball bearing via the first ball bearing, a gravity block mounted on the bottom of the ball bearing, a lower support leg at the bottom of the outer frame, an upper support leg at the top of the outer frame, a conical support rod magnetically mounted at the ends of both the lower and upper support legs, a positioning bracket mounted on the bottom of the outer frame, a first guide rail on the inner side of the positioning bracket, the inner side of the first guide rail being slidably connected to a lifting positioning block, an adjusting screw threaded onto the bottom end of the first guide rail, a laser emitter mounting slot opening upwards at the bottom of the gravity block, a battery mounted inside the gravity block, a switch button on the side of the gravity block, a laser emitter fixedly mounted inside the laser emitter mounting slot, an indicator point at the top center of the lifting positioning block, and a marking device on the side of the outer frame.

[0006] The beneficial effects of this utility model are as follows: When this device is used to test the table of the measuring machine, the conical support rod at the bottom of the lower support foot contacts the table to support the device. After turning on the laser emitter using the switch button, the adjusting screw is rotated in the reverse direction to lower the lifting positioning block, thereby releasing the lifting positioning block from the contact with the gravity block. Under the gravity of the gravity block on the rolling ball, through the rolling contact between the rolling ball and the first ball bearing, the gravity block can be automatically adjusted to a vertically downward state. At this time, the positional relationship between the laser reflection point emitted by the laser emitter and the indicator point is observed. If the table... If the platform is level at the detection point, the laser reflection point coincides with the indicator point. If the platform is uneven at the detection point, the laser reflection point and the indicator point will deviate. By observing the positional relationship between the laser emission point and the indicator point, the level of the detection point can be quickly confirmed without repeated alignment and adjustment, which can improve detection efficiency. When it is necessary to detect the track of the measuring machine, the detection method based on the same principle as described above can be used. The only difference is that the cone-shaped support rod above the upper support leg is brought into contact with the bottom surface of the track, and the ink storage tank is rotated with the damping shaft so that the fiber rod faces upward.

[0007] This device is equipped with a marking device. Before use, the sealed cover can be opened to inject colored ink into the ink reservoir, and then the sealed cover can be closed. The ink in the ink reservoir can be absorbed by the fiber rod. If a problem with the levelness of the detection point is detected, the ink reservoir can be moved by the lever and the slider can be moved to slide inside the second guide rail, so that the fiber rod contacts the table surface, and the table surface can be marked with color to help quickly identify the problem point during subsequent repairs.

[0008] To facilitate the replacement of worn cone-shaped support rods:

[0009] As a further improvement to the above technical solution: both the lower support leg and the upper support leg are provided with insertion holes at their ends, a first magnetic block is fixedly provided on the inner side of the insertion hole, and a second magnetic block is fixedly provided on one end of the cone-shaped support rod, with the first magnetic block and the second magnetic block being magnetically connected.

[0010] The beneficial effects of this improvement are: the end of the cone-shaped support rod is rounded to avoid punctures, and the worn cone-shaped support rod can be easily replaced by magnetic attraction.

[0011] To perform testing in the absence of power:

[0012] As a further improvement to the above technical solution: the side of the rolling ball is provided with an indicator strip, which consists of two strips, an upper one and a lower one. The top of the upper indicator strip is flush with the top of the rolling cavity, and the bottom of the lower indicator strip is flush with the bottom of the rolling cavity.

[0013] The beneficial effects of this improvement are: when the battery is depleted, the alignment of the indicator strip with the upper and lower edges of the rolling cavity can be observed. If the gravity block and the outer frame are not perpendicular, the indicator strip and the rolling cavity will also be misaligned, which can be used for rough detection.

[0014] To indicate the testing status:

[0015] As a further improvement to the above technical solution: the indicator point and the laser emitter are located on the same vertical line.

[0016] The beneficial effect of this improvement is that the indicator point and the laser emitter are located on the same vertical line, and when the gravity block is in a vertical state, the laser point emitted by the laser emitter is aligned with the indicator point.

[0017] To mark the locations of detected anomalies:

[0018] As a further improvement to the above technical solution: the marking device includes a second guide rail installed on the side of the outer frame, a spring provided on the inner side of the second guide rail, a slider slidably installed on the inner side of the second guide rail, an ink storage tank rotatably connected to the side of the slider, a fiber rod penetrating and engaging the bottom of the ink storage tank, and a lever provided on the side of the ink storage tank.

[0019] The beneficial effects of this improvement are as follows: This device is equipped with a marking device. Before use, the sealed cover can be opened to inject colored ink into the ink reservoir, and then the sealed cover can be closed. The ink in the ink reservoir can be absorbed by the fiber rod. If a problem with the levelness of the detection point is detected, the ink reservoir can be moved by the lever and the slider can slide on the inside of the second guide rail to make the fiber rod contact the table surface, so that the table surface can be marked with color. This helps to quickly identify the problem point during subsequent repairs. Releasing the lever will cause the slider to automatically reset via the spring.

[0020] To maintain the angle after the ink reservoir has been rotated and adjusted:

[0021] As a further improvement to the above technical solution: the slider and the ink reservoir are connected by a damping shaft.

[0022] The beneficial effect of this improvement is that the slider and the ink reservoir are connected by a damping shaft, which allows the ink reservoir to maintain a fixed angle after the orientation of the fiber rod is adjusted by rotation.

[0023] To prevent ink leakage:

[0024] As a further improvement to the above technical solution: the top of the ink storage tank is provided with a sealing cover.

[0025] The beneficial effect of this improvement is that the sealing cap is used to seal the ink reservoir filling port to prevent ink leakage.

[0026] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0028] Figure 2 This is a front sectional view of the present invention;

[0029] Figure 3 This is an isometric schematic diagram of the outer frame of this utility model;

[0030] Figure 4 This is a cross-sectional structural diagram of the outer frame and the rolling ball in this utility model;

[0031] Figure 5 This is a cross-sectional structural diagram of the inner and outer frames of this utility model;

[0032] In the diagram: 1. Outer frame; 2. Rolling chamber; 3. First ball bearing; 4. Ball bearing; 5. Gravity block; 6. Lower support leg; 7. Upper support leg; 8. Conical support rod; 9. Positioning bracket; 10. First guide rail; 11. Lifting positioning block; 12. Adjusting screw; 13. Indicator strip; 14. Laser emitter; 15. Indicator point; 17. First magnetic block; 18. Second magnetic block; 19. Second guide rail; 20. Spring; 21. Slider; 22. Ink reservoir; 23. Sealing cover; 24. Fiber rod; 25. Lever; 26. Battery. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0034] like Figure 1-5As shown, a coordinate measuring machine (CMM) leveling inspection tool includes an outer frame 1. A rolling cavity 2 is provided between the top and bottom of the outer frame 1. A first ball bearing 3 rolls inside the rolling cavity 2. The inner side of the rolling cavity 2 is connected to a ball bearing 4 via the first ball bearing 3. A gravity block 5 is installed at the bottom of the ball bearing 4. A lower support leg 6 is provided at the bottom of the outer frame 1, and an upper support leg 7 is provided at the top of the outer frame 1. Conical support rods 8 are magnetically attached to the ends of both the lower support leg 6 and the upper support leg 7. A positioning bracket 9 is installed at the bottom of the outer frame 1. The positioning bracket 9 has a first guide rail 10 on its inner side, and the inner side of the first guide rail 10 is slidably connected to the lifting positioning block 11. The bottom end of the first guide rail 10 is threaded with an adjusting screw 12. The bottom of the gravity block 5 has a laser emitter mounting slot facing upward, and a battery 26 is installed on the inner side of the gravity block 5. The side of the gravity block 5 is also provided with a switch button. The inner side of the laser emitter mounting slot is fixedly installed with a laser emitter 14. The top center of the lifting positioning block 11 is provided with an indicator point 15. The side of the outer frame 1 is provided with a marking device.

[0035] When this device is used to inspect the table of the measuring machine, the cone-shaped support rod 8 at the bottom of the lower support leg 6 contacts the table to support the device. After turning on the laser emitter 14 using the switch button, the adjusting screw 12 is rotated in the reverse direction to lower the lifting positioning block 11, thereby releasing the lifting positioning block 11 from contact with the gravity block 5. Under the gravity force exerted by the gravity block 5 on the rolling ball 4, the rolling contact between the rolling ball 4 and the first ball bearing 3 allows the gravity block 5 to automatically adjust to a vertically downward state. At this time, the position between the laser reflection point emitted by the laser emitter 14 and the indicator point 15 is observed. The positional relationship is such that if the platform is level at the detection point, the laser reflection point coincides with the indicator point 15. If the platform is uneven at the detection point, the laser reflection point deviates from the indicator point 15. By observing the positional relationship between the laser emission point and the indicator point 15, the level of the detection point can be quickly confirmed. When it is necessary to detect the track of the measuring machine, the detection method based on the same principle as described above can be used. The only difference is that the cone-shaped support rod 8 above the upper support 7 is brought into contact with the bottom surface of the track, and the ink storage tank 22 is rotated so that the fiber rod 24 faces upward through the damping shaft.

[0036] This device is equipped with a marking device. Before use, the sealing cover 23 can be opened to inject colored ink into the ink reservoir 22, and then the sealing cover 23 can be closed. The ink in the ink reservoir 22 can be absorbed by the fiber rod 24. If a problem with the levelness of the detection point is detected, the ink reservoir 22 can be moved by the lever 25 and slid through the slider 21 on the inner side of the second guide rail 19, so that the fiber rod 24 contacts the table surface, and the table surface can be marked with color to help quickly identify the problem point during subsequent repairs.

[0037] The lower support leg 6 and the upper support leg 7 are both provided with insertion holes at their ends. A first magnetic block 17 is fixedly provided on the inner side of the insertion hole, and a second magnetic block 18 is fixedly provided on one end of the cone-shaped support rod 8. The first magnetic block 17 and the second magnetic block 18 are magnetically connected.

[0038] The end of the cone-shaped support rod 8 is rounded to avoid punctures. The worn cone-shaped support rod 8 can be easily replaced by magnetic attraction.

[0039] The side of the rolling ball 4 is provided with an indicator strip 13. There are two indicator strips 13, one upper and one lower. The top of the upper indicator strip 13 is flush with the top of the rolling cavity 2, and the bottom of the lower indicator strip 13 is flush with the bottom of the rolling cavity 2.

[0040] When the battery 26 is depleted, the alignment of the indicator strip 13 with the upper and lower edges of the rolling cavity 2 can be observed. If the gravity block 5 is not perpendicular to the outer frame 1, the indicator strip 13 will also be misaligned with the rolling cavity 2, which can be used for rough detection.

[0041] The indicator point 15 and the laser emitter 14 are located on the same vertical line.

[0042] The indicator point 15 and the laser emitter 14 are located on the same vertical line. When the gravity block 5 is in a vertical state, the laser point emitted by the laser emitter 14 is aligned with the indicator point 15.

[0043] The marking device includes a second guide rail 19 mounted on the side of the outer frame 1. A spring 20 is provided on the inner side of the second guide rail 19. A slider 21 is slidably mounted on the inner side of the second guide rail 19. An ink storage tank 22 is rotatably connected to the side of the slider 21. A fiber rod 24 is inserted through and engaged at the bottom of the ink storage tank 22. A lever 25 is provided on the side of the ink storage tank 22.

[0044] This device is equipped with a marking device. Before use, the sealing cover 23 can be opened to inject colored ink into the ink reservoir 22, and then the sealing cover 23 can be closed. The ink in the ink reservoir 22 can be absorbed by the fiber rod 24. If a problem with the levelness of the detection point is detected, the ink reservoir 22 can be moved by the lever 25 and the slider 21 can be slid inside the second guide rail 19 to make the fiber rod 24 contact the table surface, so that the table surface can be marked with color to help quickly identify the problem point during subsequent repair. Releasing the lever 25 will cause the slider 21 to automatically reset by the spring 20.

[0045] The slider 21 and the ink reservoir 22 are connected by a damping shaft.

[0046] The slider 21 is connected to the ink reservoir 22 by a damping shaft, which allows the ink reservoir 22 to maintain a fixed angle after the orientation of the fiber rod 24 is rotated.

[0047] The top of the ink storage tank 22 is provided with a sealing cover 23.

[0048] The sealing cap 23 is used to seal the filling port of the ink reservoir 22 to prevent ink leakage.

[0049] The working principle and usage process of this utility model are as follows: Before measurement, the adjusting screw 12 is rotated to drive the lifting positioning block 11 to slide upward, thereby making the lifting positioning block 11 contact the bottom of the gravity block 5, so that the lifting positioning block 11 and the gravity block 5 are in close contact, fixing the rolling ball 4 and preventing it from swinging excessively during movement. When measuring the levelness of the measuring machine's table, this device is placed on the table, so that the cone-shaped support rod 8 at the bottom of the lower support leg 6 contacts the table, supporting the device. After turning on the laser emitter 14 using the switch button, the adjusting screw 12 is rotated in the opposite direction to make the lifting positioning block 11 descend, thereby releasing the lifting positioning block 11 from contact with the gravity block 5. Under the gravity of the gravity block 5 on the rolling ball 4, through the rolling contact between the rolling ball 4 and the first ball 3, the gravity block 5 can automatically adjust to a vertically downward state. At this time, the positional relationship between the laser reflection point emitted by the laser emitter 14 and the indicator point 15 is observed. If the table is level with the detection point, the laser reflection point and the indicator point are in a horizontal position. If the platform surface at the detection point is uneven, the laser reflection point will deviate from the indicator point 15. By observing the positional relationship between the laser emission point and the indicator point 15, the level of the detection point can be quickly confirmed. This device is equipped with a marking device. Before use, the sealing cover 23 can be opened to inject colored ink into the ink storage tank 22, and then the sealing cover 23 can be closed. The ink in the ink storage tank 22 can be absorbed by the fiber rod 24. If the level of the detection point is detected to be problematic, the ink storage tank 22 can be moved by the lever 25 and the slider 21 can be slid inside the second guide rail 19 to make the fiber rod 24 contact the platform surface, so that the platform surface can be colored and the problem point can be quickly identified during subsequent repair. Releasing the lever 25 will cause the slider 21 to automatically reset by the spring 20. When it is necessary to detect the track of the measuring machine, the detection method based on the same principle as described above can be used. The only difference is that the cone-shaped support rod 8 above the upper support leg 7 is in contact with the bottom surface of the track, and the ink storage tank 22 is rotated so that the fiber rod 24 faces upward by the damping shaft.

[0050] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0051] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A three coordinate measuring machine levelness detection tool, characterized by: The utility model provides a kind of marking device, including outer frame (1), the top and bottom of the outer frame (1) are equipped with rolling cavity (2) between, the inner side of the rolling cavity (2) is equipped with first ball (3) and rolls, the inner side of the rolling cavity (2) is connected with rolling ball (4) by first ball (3) and rolls, the bottom of the rolling ball (4) is equipped with gravity block (5), the bottom of the outer frame (1) is equipped with lower support (6), the top of the outer frame (1) is equipped with upper support (7), the end of the lower support (6) and upper support (7) is equipped with magnetic attraction installation cone head support rod (8), the bottom of the outer frame (1) is equipped with positioning bracket (9), the inner side of the positioning bracket (9) is equipped with first guide rail (10), the inner side of the first guide rail (10) is slidably connected with lifting positioning block (11), the bottom end of the first guide rail (10) is equipped with adjusting screw rod (12) by screwing, the bottom of the gravity block (5) is upwardly opened laser emitter installation slot and the inner side of the gravity block (5) is equipped with battery (26), the side of the gravity block (5) is also equipped with switch button, the inner side of the laser emitter installation slot is fixedly installed with laser emitter (14), the top center position of the lifting positioning block (11) is equipped with indicating point (15), the side of the outer frame (1) is equipped with marking device.

2. A three-coordinate measuring machine levelness detection tool according to claim 1, characterized in that: The end of the lower support (6) and upper support (7) is equipped with jack, the inner side of the jack is fixedly equipped with first magnetic attraction block (17), one end of the cone head support rod (8) is fixedly equipped with second magnetic attraction block (18), the first magnetic attraction block (17) and second magnetic attraction block (18) are magnetically connected.

3. A three-coordinate measuring machine levelness detection tool according to claim 1, characterized in that: The side of the rolling ball (4) is equipped with indicating band (13), the indicating band (13) has upper and lower two, the top of the upper indicating band (13) is flush with the top of the rolling cavity (2), the bottom of the lower indicating band (13) is flush with the bottom of the rolling cavity (2).

4. A three-coordinate measuring machine levelness detection tool according to claim 1, characterized in that: The indicating point (15) and laser emitter (14) are located on the same vertical line.

5. A three-coordinate measuring machine levelness detection tool according to claim 1, characterized in that: The marking device includes second guide rail (19) installed on the side of outer frame (1), the inner side of the second guide rail (19) is equipped with spring (20), the inner side of the second guide rail (19) is slidably installed with sliding block (21), the side of the sliding block (21) is rotatably connected with ink storage tank (22), the bottom of the ink storage tank (22) is penetrated and clamped with fiber rod (24), the side of the ink storage tank (22) is equipped with lever (25).

6. A three-coordinate measuring machine levelness detection tool according to claim 5, characterized in that: The sliding block (21) and ink storage tank (22) are connected by damping pivot.

7. A three-coordinate measuring machine levelness detection tool according to claim 5, characterized in that: The top of the ink storage tank (22) is equipped with sealing cover (23).

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