M18 sensor self-adaptive mounting bracket applied to double-sheet detection
By designing an adaptive mounting bracket, the problem of insufficient adaptability of traditional double-sheet detection devices is solved, achieving good contact between the sensor and the object to be detected, improving detection accuracy and stability, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520704987.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-14
AI Technical Summary
Traditional double-sheet detection devices lack flexibility and adaptability, making it difficult to handle objects with different shapes, sizes, and surface conditions, resulting in problems such as high positioning accuracy requirements, poor sensor contact, and high maintenance costs.
An adaptive mounting bracket was designed, comprising an upper cover plate, a lower cover plate, a guide post, a spring, a cup, and an M18 sensor. The spring's cushioning effect and the cup's adaptive fit ensure good contact between the sensor and the object to be detected. A tracheal connector and cable ties are used for flexible adjustment, enhancing the adaptability and stability of the mounting bracket.
It improves the detection accuracy and stability of the sensor, extends the sensor's service life, reduces maintenance costs, and enhances the overall effect of double-sheet detection.
Smart Images

Figure CN223868455U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of industrial testing equipment, and more specifically to an M18 sensor adaptive mounting bracket for double sheet testing. Background Technology
[0002] In industrial production, double-sheet inspection is a crucial step in ensuring product quality and production efficiency. For example, in automobile manufacturing, the stamping process requires a single sheet of metal to be stamped each time. If two or more sheets enter the stamping die simultaneously, it can lead to scrapped parts or even damage to the die, increasing production costs and downtime. Traditional double-sheet inspection devices often lack flexibility and adaptability, making it difficult to handle objects with different shapes, sizes, and surface conditions. Common problems include: high positioning accuracy requirements, where even slight deviations can lead to inaccurate detection; poor contact between the sensor and the object being inspected, affecting the reliability of the results; and high rigidity of the mounting structure, which can easily damage the sensor and increase maintenance costs. Therefore, improvements are needed. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adaptive mounting bracket for the M18 sensor used in double sheet detection.
[0004] This utility model provides a technical solution including an upper cover plate, a lower cover plate, a guide post, a spring, a cup, and an M18 sensor mounted on the lower cover plate. The upper cover plate is used to connect to the end effector of a robot. The upper cover plate and the lower cover plate are connected by the guide post. A spring is fitted on the guide post and is located between the upper cover plate and the lower cover plate. The cup is disposed on the lower cover plate and forms a sealing structure with the lower cover plate.
[0005] Furthermore, the number of guide posts is three, and they are evenly distributed between the upper cover plate and the lower cover plate.
[0006] Furthermore, the spring is a compression spring, and the spring constant ranges from 20 N / mm to 120 N / mm.
[0007] Furthermore, the leather cup is made of rubber material with a hardness range of 40A-70A.
[0008] Furthermore, the edge of the leather cup is provided with a lip structure, which is a raised ring structure surrounding the edge of the leather cup and extends outward or inward from the edge of the leather cup.
[0009] Furthermore, the lower cover plate is threadedly connected to the M18 sensor.
[0010] Furthermore, the lower cover plate is provided with a mounting hole for mounting the M18 sensor, and the inner wall of the mounting hole is provided with an internal thread that matches the thread of the M18 sensor.
[0011] Furthermore, it also includes an air pipe connector, which is disposed on the lower cover plate, with one end of the air pipe connector communicating with the inside of the leather cup and the other end used to connect to an external air source device.
[0012] Furthermore, the upper cover plate is provided with connection holes for connecting to the end of the robotic arm, and the number of connection holes is multiple and they are arranged in an array.
[0013] Furthermore, it also includes cable ties for securing the leather cup to the lower cover plate.
[0014] The above technical solution has the following beneficial effects:
[0015] The structural design of this invention endows the mounting bracket with self-adaptive capabilities, enabling it to adapt to objects of different shapes and surface conditions. The spring's cushioning effect reduces the impact of robotic arm positioning deviations on the M18 sensor, effectively protecting the sensor and extending its service life. Simultaneously, the improved contact condition enhances the accuracy and stability of the M18 sensor's detection, thereby improving the overall performance of double-sheet detection. Attached Figure Description
[0016] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of an adaptive mounting bracket for an M18 sensor used in double sheet detection, according to one embodiment of this utility model.
[0018] Appendix Label Reference Table:
[0019] 1. Top cover plate; 11. Connecting hole; 2. Bottom cover plate; 3. Guide post; 4. Spring; 5. Leather cup; 6. M18 sensor; 7. Air tube connector; 8. Cable tie. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0021] It is readily understood that, based on the technical solution of this utility model, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0022] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 meanings of the above-mentioned components within this utility model according to the specific circumstances.
[0024] In some embodiments of this utility model, an upper cover plate, a lower cover plate, a guide post, a spring, a cup, and an M18 sensor mounted on the lower cover plate are included. The upper cover plate is used to connect to the end effector of the robot arm. The upper cover plate and the lower cover plate are connected by the guide post. A spring is fitted on the guide post and is located between the upper cover plate and the lower cover plate. The cup is disposed on the lower cover plate and forms a sealing structure with the lower cover plate.
[0025] Specifically, the adaptive mounting bracket mainly consists of an upper cover plate, a lower cover plate, guide posts, springs, a cup-shaped sensor, and an M18 sensor. The upper cover plate, located above the bracket, connects to the end effector of the robotic arm and serves as the connection hub between the entire bracket and the external power equipment. The lower cover plate, located below the upper cover plate, is connected to the upper cover plate via the guide post. The guide post passes through both the upper and lower cover plates, providing support and positioning. The spring is fitted onto the guide post, positioned between the upper and lower cover plates. The cup-shaped sensor is installed on the side of the lower cover plate facing the object to be detected, and the M18 sensor is installed on the lower cover plate. The upper cover plate is fixed to the end effector of the robotic arm using a suitable connection method (such as bolt connection). The upper and lower cover plates are connected by the guide post, which can employ interference fit, threaded connection, or other methods to ensure a stable connection. The spring and guide post are fitted together, allowing free extension and retraction on the guide post. The cup-shaped sensor and the lower cover plate form a sealed structure using adhesive bonding, slotted engagement, or other methods to prevent gas leakage. The M18 sensor is installed on the lower cover plate; the specific installation method is further defined in subsequent claims.
[0026] Working Principle: When the robotic arm moves the mounting bracket close to the object to be detected, the cup initially contacts the surface of the object. Due to the presence of the spring, the lower cover plate can elastically displace relative to the upper cover plate within a certain range. This elastic displacement allows the cup to adaptively conform to the surface of the object, ensuring good contact between the M18 sensor and the object even if the surface of the object has some unevenness or the robotic arm has slight positioning deviations. This structural design gives the mounting bracket self-adaptability, allowing it to adapt to objects with different shapes and surface conditions. The spring's cushioning effect reduces the impact of robotic arm positioning deviations on the M18 sensor, effectively protecting the sensor and extending its service life. Simultaneously, the good contact condition improves the accuracy and stability of the M18 sensor's detection, thereby enhancing the overall effect of double-sheet detection.
[0027] In some embodiments of this utility model, the number of guide posts is three and they are evenly distributed between the upper cover plate and the lower cover plate.
[0028] Specifically, there are three guide posts, evenly distributed between the upper and lower cover plates. These three evenly distributed guide posts provide stable support and connection for the upper and lower cover plates. When the sensor cup contacts the object being detected, the force on each guide post is relatively uniform, ensuring that the lower cover plate remains balanced during elastic displacement under the action of the spring, preventing tilting or wobbling. This ensures that the M18 sensor is always in the correct detection position, improving detection accuracy. It also improves the overall stability of the mounting bracket, further enhancing the stability of the M18 sensor's contact with the object being detected and the accuracy of detection. The evenly distributed guide posts help distribute the force, reducing the stress on individual guide posts, extending the service life of the guide posts and springs, and lowering equipment maintenance costs.
[0029] In some embodiments of this utility model, the spring is a compression spring, and the spring constant ranges from 20 N / mm to 120 N / mm.
[0030] Specifically, the spring is a compression spring with a spring constant ranging from 20 N / mm to 120 N / mm. When the cup contacts the object being detected, the spring is compressed, generating elastic force. A suitable spring constant allows the spring to provide sufficient pressure to ensure the cup fits tightly against the object's surface while maintaining a certain elastic displacement capability for the lower cover plate. If the spring constant is too small, the spring is too soft and may not provide enough pressure to ensure the cup fits, resulting in poor contact between the M18 sensor and the object. If the spring constant is too large, the spring is too stiff, limiting the elastic displacement capability of the lower cover plate and making it unable to adapt well to the surface condition of the object. Within the spring constant range of 20 N / mm to 120 N / mm, the spring can adaptively adjust the position and pressure of the lower cover plate according to the surface condition of the object and the positioning of the robot arm, ensuring good contact between the M18 sensor and the object, thus improving the reliability and stability of double-sheet detection.
[0031] In some embodiments of this utility model, the leather cup is made of rubber material with a hardness range of 40A-70A.
[0032] Specifically, the rubber cup is made of rubber material with a hardness range of 40A-70A. Rubber material has good flexibility and elasticity; within this hardness range, the cup can deform slightly upon contact with the object being tested, thus better conforming to the object's surface. Simultaneously, the appropriate hardness ensures sufficient strength, preventing damage. This rubber cup with its appropriate hardness can adapt to objects of varying shapes and surface roughness, improving the sealing performance and fit between the cup and the object. This excellent sealing and fit provides a stable testing environment for the M18 sensor, reducing interference from external factors and improving the accuracy of double-sheet detection. Furthermore, the wear resistance and corrosion resistance of the rubber material help extend the cup's lifespan and reduce equipment maintenance costs.
[0033] In some embodiments of this utility model, the edge of the leather bowl is provided with a lip structure, which is a raised ring structure surrounding the edge of the leather bowl and extends outward or inward from the edge of the leather bowl.
[0034] Specifically, when the cup contacts the object being tested, the lip structure further enhances the sealing effect between the cup and the object. The outward or inward extending lips better adapt to the minute irregularities on the object's surface, filling gaps and preventing air leakage. This allows for a more stable negative pressure environment inside the cup, or better maintains a close fit with the object, providing more stable detection conditions for the M18 sensor. This improves the sealing performance and fit stability between the cup and the object, reduces interference from external factors on the M18 sensor's detection, and further enhances the accuracy and reliability of double-sheet detection. Simultaneously, the lip structure design ensures good sealing and fit on objects with varying surface conditions, enhancing the adaptability of the mounting bracket.
[0035] In some embodiments of this utility model, the lower cover plate is threadedly connected to the M18 sensor. The lower cover plate is provided with a mounting hole for mounting the M18 sensor, and the inner wall of the mounting hole is provided with an internal thread that matches the thread of the M18 sensor.
[0036] Specifically, the external thread of the M18 sensor mates with the internal thread of the mounting hole, allowing the sensor to be securely mounted on the lower cover plate by screwing it on. The size and pitch of the internal thread precisely match the external thread of the M18 sensor, ensuring a tight and stable connection. During installation, the internal thread guides the M18 sensor accurately into its mounting position and provides sufficient friction to prevent the sensor from loosening.
[0037] In some embodiments of this utility model, an air pipe connector is also included. The air pipe connector is disposed on the lower cover plate, and one end of the air pipe connector is connected to the inside of the leather cup, while the other end is used to connect to an external air source device.
[0038] Specifically, the mounting bracket also includes an air hose connector, which is located on the lower cover plate. One end of the air hose connector connects to the inside of the rubber cup, while the other end connects to an external air source device. When connected to the external air source device, air can be injected or depressurized into the rubber cup via the air hose connector. Depressurization creates a negative pressure inside the rubber cup, enhancing the adhesion between the cup and the object being tested, thus improving the stability of the fit. Injection allows adjustment of the pressure between the cup and the object as needed. By controlling the operating state of the air source device, the contact state between the cup and the object can be flexibly adjusted to adapt to different testing requirements. Connecting to an external air source device via the air hose connector enables flexible control of the fit between the cup and the object, further improving the adaptability and accuracy of double-sheet detection. This design allows for adjustment of the cup's adhesion or pressure according to different testing requirements and the characteristics of the object being tested, broadening the mounting bracket's application range. Simultaneously, a stable fit helps the M18 sensor acquire detection data more accurately, improving the reliability of the detection results.
[0039] In some embodiments of this utility model, the upper cover plate is provided with connection holes for connecting to the end of the robotic arm, and the number of connection holes is multiple and they are arranged in an array.
[0040] Specifically, multiple arrayed connection holes can be connected to the end effector of the robot arm via bolts or other connectors. This array design ensures more uniform connection points, better distributing the force transmitted to the upper cover plate during robot arm movement and guaranteeing the stability of the connection between the upper cover plate and the robot arm's end effector. When the robot arm moves the mounting bracket, all connection holes share the force, preventing excessive stress at a single point. This improves the reliability and stability of the connection between the upper cover plate and the robot arm's end effector, allowing the mounting bracket to accurately follow the robot arm's movement and preventing loosening or wobbling during operation. This ensures the accuracy and stability of the M18 sensor's dual-sheet detection. Simultaneously, the arrayed connection holes also provide installation flexibility, allowing adjustments based on different robot arm interface types, enhancing the mounting bracket's versatility.
[0041] In some embodiments of this utility model, a cable tie is also included, which is used to secure the leather cup to the lower cover plate.
[0042] Specifically, the function of cable ties is to secure the piston cup, ensuring its stable position on the mounting bracket. During equipment operation, factors such as vibration and external forces may affect the piston cup, and cable ties prevent displacement or loosening. Securely fixing the piston cup helps maintain the seal between the piston cup and the lower cover plate; the two functions complement each other. A seal between the piston cup and the lower cover plate can be achieved in various ways, such as using sealant or a locking mechanism. These sealing methods primarily focus on the sealing effect of the contact surfaces between the two, ensuring that gas or liquid does not leak from the connection point. When securing the piston cup, cable ties constrain it from the outside, ensuring the overall stability of the piston cup's position. The cable ties are typically installed on the edge or outer side of the piston cup, without affecting the sealing structure between the piston cup and the lower cover plate, nor disrupting the sealed connection.
[0043] This utility model has the following beneficial technical effects:
[0044] This structural design gives the mounting bracket self-adaptability, allowing it to adapt to objects of different shapes and surface conditions. The spring's cushioning effect reduces the impact of robotic arm positioning deviations on the M18 sensor, effectively protecting it and extending its lifespan. Simultaneously, the excellent contact condition improves the accuracy and stability of the M18 sensor's detection, thereby enhancing the overall performance of double-sheet detection.
[0045] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.
Claims
1. An adaptive mounting bracket for an M18 sensor used in double-sheet detection, characterized in that, The device includes an upper cover plate, a lower cover plate, a guide post, a spring, a cup, and an M18 sensor mounted on the lower cover plate. The upper cover plate is used to connect to the end effector of the robot arm. The upper cover plate and the lower cover plate are connected by the guide post. A spring is fitted on the guide post and is located between the upper cover plate and the lower cover plate. The cup is disposed on the lower cover plate and forms a sealing structure with the lower cover plate.
2. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, The number of guide pillars is three, and they are evenly distributed between the upper cover plate and the lower cover plate.
3. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, The spring is a compression spring, and the spring constant ranges from 20 N / mm to 120 N / mm.
4. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, The leather cup is made of rubber material with a hardness range of 40A-70A.
5. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 4, characterized in that, The edge of the leather bowl is provided with a lip structure, which is a raised ring structure surrounding the edge of the leather bowl and extends outward or inward from the edge of the leather bowl.
6. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, The lower cover plate is threadedly connected to the M18 sensor.
7. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 6, characterized in that, The lower cover plate is provided with mounting holes for mounting the M18 sensor, and the inner wall of the mounting holes is provided with internal threads that match the threads of the M18 sensor.
8. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, It also includes an air pipe connector, which is disposed on the lower cover plate, with one end of the air pipe connector communicating with the inside of the leather cup and the other end used to connect to an external air source device.
9. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, The upper cover plate is provided with connection holes for connecting to the end of the robotic arm. There are multiple connection holes, which are arranged in an array.
10. The M18 sensor adaptive mounting bracket for double-sheet detection according to claim 1, characterized in that, It also includes cable ties for securing the leather cup to the lower cover plate.