A new type of automatic induction measuring device for O-ring wire diameter

Abstract

This utility model relates to the technical field of O-ring diameter measuring devices, specifically a novel automatic sensing device for measuring O-ring diameter. It includes a base, an O-ring tray connected to the center of the upper surface of the base, a disc positioned above the O-ring tray, a distance sensor on the lower surface of the disc, and a drive unit for moving the disc on one side of the upper surface of the base. This utility model achieves high-precision, high-efficiency automatic measurement of the diameter of flexible O-rings through a non-contact measurement method, combined with air suspension positioning and multi-point sensing technology. This effectively avoids the deformation and error problems caused by compression in traditional contact measurements, improving measurement consistency and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of O-ring wire diameter measuring devices, specifically to a novel automatic sensing device for measuring the diameter of O-ring wires. Background Technology

[0002] O-rings used in the aerospace industry are critical components used in various aircraft systems (such as fuel, hydraulic, pneumatic, and environmental control systems) to achieve static or dynamic sealing under extreme conditions. Although they may look similar to ordinary O-rings, they differ significantly in materials, manufacturing processes, quality standards, and control, directly impacting flight safety.

[0003] The O-rings used in the aerospace industry (such as those made of fluororubber) are soft and easily deformed by pressure during manual contact measurement, resulting in inaccurate dimensional data. Therefore, dimensional inspection is not a simple matter of "taking a measurement." Traditional contact measuring tools such as vernier calipers and micrometers are not only inefficient but also highly dependent on the operator's skill level and sense of responsibility. Human factors such as measuring force and viewing angle deviation can introduce errors, making it difficult to guarantee the accuracy and consistency of measurement results. Utility Model Content

[0004] This invention addresses the technical problems existing in the prior art by providing a novel device for automatically sensing and measuring the diameter of O-ring wires.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A novel automatic sensing and measuring device for O-ring wire diameter includes a base, an O-ring tray connected to the middle of the upper surface of the base, a disk disposed above the O-ring tray, a distance sensor disposed on the lower surface of the disk, and a driving unit for driving the disk to move disposed on one side of the upper surface of the base.

[0007] The beneficial effects of this utility model are: This utility model achieves high-precision and high-efficiency automatic measurement of the diameter of soft O-ring wires by using a non-contact measurement method, combined with air suspension positioning and multi-point sensing technology. It effectively avoids the deformation and error problems caused by squeezing in traditional contact measurement, and improves the consistency and reliability of measurement.

[0008] Furthermore, the drive unit includes a column connected to one side of the upper surface of the base, a lead screw rotatably connected to the inner side of the column, a drive motor connected to the upper surface of the column, the output end of which is connected to the end of the lead screw, a slider threadedly connected to the outer circumference of the lead screw, a crossbar connected to the side wall of the slider, and the end of the crossbar away from the slider connected to the outer circumference of the disk. This structure enables precise lifting and lowering control of the disk, ensuring the stability of the measurement process.

[0009] Furthermore, multiple cylinders are evenly distributed on the upper surface of the base outside the O-ring tray. The output end of each cylinder is connected to an arc-shaped abutment block. The cylinder pushes the arc-shaped abutment block to perform preliminary positioning and centering of the O-ring, ensuring consistent measurement positions.

[0010] Furthermore, the arc-shaped abutment block is made of flexible rubber, which avoids damage to the surface of the O-ring while providing a good abutment effect.

[0011] Furthermore, the O-ring tray has a hollow interior and multiple evenly distributed air holes on its surface. A blower is connected to the upper surface of the base outside the O-ring tray. The blower is connected to the O-ring tray through an air supply pipe. The blower supplies air into the tray, causing the O-ring to float slightly, reducing friction with the tray surface and facilitating position adjustment.

[0012] Furthermore, an exhaust fan is symmetrically arranged on the upper surface of the base outside the O-ring tray and opposite to the blower. The exhaust fan is connected to the O-ring tray through an exhaust pipe. After positioning, the exhaust fan draws air to fix the O-ring and prevents it from moving during the measurement process.

[0013] Furthermore, the lower surface of the disk has multiple support blocks distributed in a circle, and a rack is slidably connected to the inner side of the support blocks. The distance sensor is connected to the end of the lower surface of the rack, and multiple distance sensors can simultaneously measure different positions, improving the representativeness of the measurement results.

[0014] Furthermore, the center of the disc is rotatably connected to multiple shafts corresponding to the number of racks. One end of each shaft on the lower surface of the disc is connected to a first gear that meshes with the racks. The other end of each shaft on the upper surface of the disc is connected to a second gear. A gear ring meshes with the second gear on the upper surface of the disc. An L-shaped support plate is connected to the upper surface of the disc. A motor is connected to the upper surface of the L-shaped support plate. The output end of the motor is connected to a third gear that meshes with the gear ring. The radial position of each distance sensor is adjusted through the gear transmission mechanism to adapt to the measurement requirements of O-rings of different diameters.

[0015] Furthermore, a controller is connected to the side wall of the slider on one side of the crossbar. The controller is electrically connected to the drive motor, cylinder, blower, exhaust fan and motor. The controller integrates the control of each actuator to realize the automation and coordinated operation of the measurement process.

[0016] Furthermore, the lower surface of the base is threaded with adjustable feet at the four corners, which can be adjusted to keep the base in a horizontal position at all times. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a partial structural diagram of the present utility model;

[0019] Figure 3 This is a structural diagram of the upper surface of the disk of this utility model;

[0020] Figure 4 This is a structural diagram of the lower surface of the disk of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. O-ring tray; 3. Disc; 4. Distance sensor; 51. Column; 52. Lead screw; 53. Drive motor; 54. Slider; 55. Crossbar; 11. Cylinder; 12. Arc-shaped abutment block; 13. Blower; 14. Exhaust fan; 15. Support block; 16. Rack; 17. Rotating shaft; 18. First gear; 19. Second gear; 20. Gear ring; 21. L-shaped support plate; 22. Motor; 23. Third gear; 24. Controller; 25. Adjustable support feet. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0027] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0028] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0029] Example

[0030] Reference Figure 1 , Figure 4 This embodiment provides a novel automatic sensing and measuring device for O-ring wire diameter, including a base 1, an O-ring tray 2 connected to the middle of the upper surface of the base 1, a disk 3 arranged above the O-ring tray 2, a distance sensor 4 arranged on the lower surface of the disk 3, and a driving unit for driving the disk 3 to move arranged on one side of the upper surface of the base 1.

[0031] In this embodiment, the O-ring tray 2 is used to place the O-ring to be tested. The drive unit is activated, driving the disk 3 and the distance sensor 4 on its lower surface to move towards the O-ring tray 2. When the distance sensor 4 approaches or contacts the O-ring, it sends a signal. By measuring the distance from the sensor to the upper surface of the O-ring and combining it with the known height of the O-ring tray 2, the wire diameter of the O-ring is calculated, completing the non-contact automatic measurement.

[0032] Reference Figure 1The drive unit includes a column 51 connected to one side of the upper surface of the base 1. A lead screw 52 is rotatably connected to the inner side of the column 51. A drive motor 53 is connected to the upper surface of the column 51, and its output end is connected to the end of the lead screw 52. A slider 54 is threadedly connected to the outer circumference of the lead screw 52. A crossbar 55 is connected to the side wall of the slider 54. The end of the crossbar 55 away from the slider 54 is connected to the outer circumference of the disc 3.

[0033] In this embodiment, the drive motor 53 starts, causing the lead screw 52 to rotate. Since the slider 54 is threadedly connected to the lead screw 52 and constrained by the column 51, the rotation of the lead screw 52 is converted into precise linear motion of the slider 54 along the direction of the column 51. The slider 54 pushes or pulls the disk 3 through the crossbar 55, thereby realizing the smooth lifting and lowering of the disk 3 and its components, providing accurate height positioning for measurement.

[0034] Referring to 2, multiple cylinders 11 are evenly distributed on the upper surface of the base 1 outside the O-ring tray 2, and the output end of the cylinder 11 is connected to an arc-shaped abutment block 12.

[0035] In this embodiment, before the measurement begins, multiple cylinders 11 operate synchronously, pushing the arc-shaped abutment blocks 12 at their output ends towards the O-ring at the center of the O-ring tray 2. The multiple arc-shaped abutment blocks 12 contact the outer circumference of the O-ring evenly from all sides, working together to cause radial displacement until the O-ring is adjusted and fixed in the center of the tray, ensuring that the reference position is consistent for each measurement.

[0036] Preferably, the arc-shaped abutment block 12 is made of flexible rubber.

[0037] In this embodiment, when the cylinder 11 pushes the arc-shaped contact block 12 to contact the O-ring, the flexible rubber material can undergo elastic deformation. On the one hand, it increases the contact area and friction with the O-ring surface, thereby improving the positioning stability. On the other hand, its softness prevents hard mechanical parts from scratching or indenting the soft O-ring surface, ensuring the integrity of the workpiece under test.

[0038] Referring to 2, the O-ring tray 2 has a cavity inside and multiple evenly distributed air holes on its surface. The upper surface of the base 1 is connected to the blower 13 on the outside of the O-ring tray 2. The blower 13 is connected to the O-ring tray 2 through an air supply pipe.

[0039] In this embodiment, the blower 13 is started, pumping airflow into the internal cavity of the O-ring tray 2 through the air supply pipe. The airflow then overflows from the evenly distributed air holes on the tray surface, forming an air film between the O-ring and the tray surface. The lift generated by this air film keeps the O-ring in a slightly suspended state, significantly reducing the frictional resistance between its bottom and the tray surface, making it easier for the cylinder 11 to push the arc-shaped abutment block 12 to easily center and adjust it.

[0040] Referring to 2, an exhaust fan 14 is provided on the upper surface of the base 1 outside the O-ring tray 2 and symmetrically with the blower 13. The exhaust fan 14 is connected to the O-ring tray 2 through an exhaust pipe.

[0041] In this embodiment, after the O-ring is suspended and centered with the assistance of the blower 13, the blower 13 stops working and the exhaust fan 14 starts. The exhaust fan 14 draws air from the cavity of the O-ring tray 2 through the exhaust pipe, creating a negative pressure inside the cavity. Atmospheric pressure tightly adheres the O-ring to the tray surface through the air holes, thereby firmly fixing the O-ring during subsequent measurements and preventing it from moving due to any minor vibrations or external forces, ensuring the stability of the measurement data.

[0042] Referring to 4, multiple support blocks 15 are distributed circumferentially on the lower surface of the disk 3. A rack 16 is slidably connected to the inner side of the support block 15, and the distance sensor 4 is connected to the end of the lower surface of the rack 16.

[0043] In this embodiment, multiple distance sensors 4 are mounted on the lower surface of the disk 3 via racks 16 and distributed along the circumference. This structure allows each rack 16 to drive the distance sensor 4 at its end to slide radially along the support block 15, thereby adjusting the radial distance of multiple sensors relative to the center of the disk 3. This enables the sensor to adapt to O-rings of different diameters and to simultaneously measure multiple points on the circumference of the O-ring, improving the representativeness and accuracy of the measurement.

[0044] Reference Figure 3 , Figure 4 , Figure 5 The center of the disc 3 is rotatably connected to multiple shafts 17 corresponding to the number of racks 16. One end of the shaft 17 located on the lower surface of the disc 3 is connected to a first gear 18 that meshes with the racks 16. One end of the shaft 17 located on the upper surface of the disc 3 is connected to a second gear 19. A gear ring 20 that meshes with the second gear 19 is connected to the upper surface of the disc 3. An L-shaped support plate 21 is connected to the upper surface of the disc 3. A motor 22 is connected to the upper surface of the L-shaped support plate 21. The output end of the motor 22 is connected to a third gear 23 that meshes with the gear ring 20.

[0045] In this embodiment, the motor 22 starts, driving the third gear 23 to rotate. The third gear 23 meshes with the fixed gear ring 20, thereby driving the gear ring 20 to rotate. The rotation of the gear ring 20 drives all the second gears 19 meshing with it to rotate synchronously. Each second gear 19 drives the first gear 18 at its lower end to rotate synchronously through the rotating shaft 17. Each first gear 18 then drives the rack 16 meshing with it to move radially, ultimately achieving synchronous, equidistant, radial extension and retraction of all distance sensors 4, and accurately adjusting their measurement positions.

[0046] Referring to 1, the side wall of the slider 54 is connected to the controller 24 on one side of the crossbar 55. The controller 24 is electrically connected to the drive motor 53, cylinder 11, blower 13, exhaust fan 14 and motor 22.

[0047] In this embodiment, the controller 24 serves as the control center of the system. Based on the preset program or received sensor signals such as the distance sensor 4 signal, it sequentially sends commands to the drive motor 53, cylinder 11, blower 13, exhaust fan 14 and motor 22 to coordinate and control the entire process of O-ring suspension, positioning, fixing, measurement height adjustment, sensor radial position adjustment and data acquisition, thereby realizing an automated measurement process.

[0048] Referring to 1, the lower surface of the base 1 has four adjustable feet 25 connected by threads at the four corners.

[0049] In this embodiment, by rotating the adjustable feet 25 at the four corners of the lower surface of the base 1, the height of each foot can be adjusted independently, thereby adjusting the levelness of the entire device, ensuring that the O-ring tray 2 is in a horizontal state, eliminating measurement errors caused by the tilt of the base 1, and providing a basic guarantee for high-precision measurement.

[0050] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A new type of automatic inductive measuring device for measuring the diameter of an O-ring, characterized in that The device includes a base (1), an O-ring tray (2) connected to the middle of the upper surface of the base (1), a disc (3) above the O-ring tray (2), a distance sensor (4) on the lower surface of the disc (3), and a drive unit for driving the disc (3) to move on one side of the upper surface of the base (1).

2. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 1, characterized in that: The drive unit includes a column (51) connected to one side of the upper surface of the base (1). A lead screw (52) is rotatably connected to the inner side of the column (51). A drive motor (53) is connected to the upper surface of the column (51), and its output end is connected to the end of the lead screw (52). A slider (54) is threadedly connected to the outer circumference of the lead screw (52). A crossbar (55) is connected to the side wall of the slider (54). The end of the crossbar (55) away from the slider (54) is connected to the outer circumference of the disc (3).

3. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 1, characterized in that: The upper surface of the base (1) is evenly distributed with multiple cylinders (11) on the outside of the O-ring tray (2), and the output end of the cylinder (11) is connected to an arc-shaped abutment block (12).

4. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 3, characterized in that: The arc-shaped abutment block (12) is made of flexible rubber.

5. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 3, characterized in that: The O-ring tray (2) has a cavity inside and multiple evenly distributed air holes on its surface. The upper surface of the base (1) is connected to a blower (13) outside the O-ring tray (2). The blower (13) is connected to the O-ring tray (2) through an air supply pipe.

6. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 5, characterized in that: The upper surface of the base (1) is located outside the O-ring tray (2) and is symmetrically provided with an exhaust fan (14) to the blower (13). The exhaust fan (14) is connected to the O-ring tray (2) through an exhaust pipe.

7. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 1, characterized in that: The lower surface of the disk (3) has multiple support blocks (15) distributed in a circular pattern. A rack (16) is slidably connected to the inner side of the support block (15). The distance sensor (4) is connected to the end of the lower surface of the rack (16).

8. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 7, characterized in that: The disk (3) is rotatably connected to a plurality of rotating shafts (17) corresponding to the number of racks (16). The rotating shaft (17) is connected to a first gear (18) meshing with the racks (16) at one end of the lower surface of the disk (3). The rotating shaft (17) is connected to a second gear (19) at one end of the upper surface of the disk (3). The upper surface of the disk (3) is connected to a gear ring (20) meshing with the second gear (19). The upper surface of the disk (3) is connected to an L-shaped support plate (21). The upper surface of the L-shaped support plate (21) is connected to a motor (22). The output end of the motor (22) is connected to a third gear (23) meshing with the gear ring (20).

9. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 2, characterized in that: The slider (54) has a controller (24) connected to the side of the crossbar (55). The controller (24) is electrically connected to the drive motor (53), cylinder (11), blower (13), exhaust fan (14) and motor (22).

10. The novel automatic sensing and measuring device for O-ring wire diameter according to claim 1, characterized in that: The base (1) has adjustable feet (25) threaded at the four corners of its lower surface.

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