A device for detecting a diameter of a passage and a diameter detecting assembly

Abstract

This application discloses a bore diameter testing device and assembly, relating to the field of engineering testing equipment technology. The bore diameter testing device includes a cabinet, a drive unit, a bore gauge, a torque limiter, and a testing assembly. A torque limiter is installed between the drive unit and the bore gauge. When there are small foreign objects or slight structural deformation inside the workpiece to be tested, the torque limiter acts as a torque constraint, limiting the driving force on the bore gauge to a preset safe range. This prevents the gauge from forcibly passing through by squeezing foreign objects or the inner wall of the workpiece through increased torque, avoiding false passes due to drive unit overload and improving the reliability of the testing results. The torque limiter restricts the transmission torque between the drive unit and the bore gauge, effectively preventing structural damage to the drive unit due to overload. This design protects the drive unit and prevents false passes due to drive unit overload, improving testing reliability.

Description

Technical Field

[0001] This application relates to the field of engineering testing equipment technology, and in particular to a diameter detection device and diameter detection component. Background Technology

[0002] Drill pipe is a hollow tubular component used in drilling operations to connect surface equipment with downhole drilling tools. It is used to transmit power, transport drilling media, extend drilling depth, and support downhole tools. Before being lowered into the well, drill pipe must undergo a caliper check to determine the extent of reduction in the inner diameter and to check for any debris clogging the pipe.

[0003] In existing technologies, gauging gauges are typically used to check the borehole diameter of drill pipes. The gauge penetrates the hollow drill pipe at a predetermined size, and the compliance of the borehole diameter and the presence of internal defects are determined by whether it passes smoothly or makes contact. However, existing gauging gauges are prone to misjudgment. Even if the gauge passes smoothly through the drill pipe, there may still be foreign objects or deformation inside. This can lead to problems such as jamming, damage, or deformation failure of the drill pipe after the check, potentially posing safety risks and resulting in unreliable test results. Summary of the Invention

[0004] The purpose of this application is to provide a diameter detection device and diameter detection components to improve or solve the above-mentioned technical problems existing in the prior art.

[0005] In a first aspect, this application provides a bore detection device for detecting a workpiece to be inspected. The bore detection device includes a cabinet, a drive unit, a bore gauge, a torque limiter, and a detection assembly. The drive unit and the detection assembly are fixed to the cabinet. The drive unit is driven by the bore gauge and is used to drive the bore gauge to move. The torque limiter is driven by the drive unit and the bore gauge and is used to connect the torque transmission between the drive unit and the bore gauge. When the torque of the drive unit is greater than a torque threshold, the torque limiter restricts or cuts off the torque transmission between the drive unit and the bore gauge. The detection assembly is used to detect the motion information of the bore gauge and, based on the motion information, determine whether the effective bore of the workpiece to be inspected is qualified.

[0006] Secondly, this application provides a diameter testing assembly, including a diameter testing device and a support device as described in the first aspect. The support device is correspondingly arranged with the diameter testing device and is used to support and adjust the relative position of the workpiece to be tested so that the workpiece to be tested and the diameter gauge are correspondingly arranged.

[0007] The technical solution adopted in this application achieves the following beneficial effects: the driving component and the detection assembly are fixed to the cabinet. The driving component is connected to the gauge and drives its movement. The gauge moves inside the part to be tested. If the gauge can pass smoothly through the part, the detection assembly determines that the effective gauge diameter of the part is qualified. When there are foreign objects inside the part, they will obstruct the movement of the gauge, and the torque of the driving component will gradually increase. This is used as a basis for judgment to ensure that there are no foreign objects or deformations inside the part. During this period, if the gauge encounters resistance and the torque of the driving component exceeds the torque threshold, the torque limiter restricts or cuts off the torque transmission between the driving component and the gauge. The torque of the driving component will not exceed the torque threshold, and the speed of the gauge will gradually decrease to zero or below the speed threshold. At this time, the detection assembly detects the speed of the gauge, thus determining that the effective gauge diameter of the part is unqualified.

[0008] Compared to existing technologies, this application incorporates a torque limiter between the drive component and the gauge. When minute foreign objects or slight structural deformations occur inside the workpiece under test, the torque limiter constrains the torque, limiting the driving force on the gauge to a preset safety range. This prevents the gauge from forcibly passing through by increasing torque to compress foreign objects or the inner wall of the workpiece, thus avoiding false passes due to drive component overload and improving the reliability of the test results. Furthermore, the torque limiter restricts the transmission torque between the drive component and the gauge, effectively preventing structural damage to the drive component due to overload. This design protects the drive component and prevents false passes due to drive component overload, thereby improving test reliability. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of a bore detection device shown in an exemplary embodiment of this application; Figure 2 This is a schematic diagram illustrating the structure of the test piece and the diameter detection assembly, as shown in an exemplary embodiment of this application. Figure 3 This is a schematic diagram of the structure of a diameter detection device from another perspective, illustrating an exemplary embodiment of this application; Figure 4 This is a schematic diagram illustrating the structure of another bore detection device according to an exemplary embodiment of this application; Figure 5 yes Figure 4 Enlarged view of point a in the image; Figure 6 This is a schematic diagram illustrating the structure of the drive chain, transmission component, and limiting component in an exemplary embodiment of this application; Figure 7 This is a schematic diagram illustrating the structure of another type of duct diameter detection device, as shown in an exemplary embodiment of this application. Figure 8 This is a schematic diagram of the structure of a bore detection component shown in an exemplary embodiment of this application; Figure 9 This is a schematic diagram of the structure of the test piece and the support device shown in an exemplary embodiment of this application.

[0011] In the diagram: 100, bore gauge; 110, cabinet; 120, drive unit; 121, first drive shaft; 122, reducer; 130, bore gauge; 131, drive chain; 1311, sub-section; 1312, connecting block; 140, torque limiter; 150, detection assembly; 151, encoder disk; 152, sensor; 161, transmission component; 162, limiting component; 163, guide tube; 164, support component; 1641, support body; 1642, support block; 165, straightener; 170, storage disk; 171, receiving channel; 1711, straight section; 1712, bent section; 180, second drive shaft; 200, bore gauge assembly; 210, support device; 211, frame; 212, support component; 213, rotating component; 300, part to be tested. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0013] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0014] In implementing this application, the applicant discovered that in existing gauge testing processes, the drive motor drives the gauge. If foreign objects are present inside the drill pipe, they can obstruct the gauge, causing it to jam and further hindering the drive motor's rotation. The drive motor then outputs greater torque to overcome this resistance. However, when minute foreign objects or slight structural deformations are present inside the workpiece being tested, the increased load on the drive motor forces the gauge to press against the foreign objects or the inner wall of the workpiece, forcing its way through. Therefore, even after the test is completed, the drill pipe may still experience jamming, damage, or deformation, potentially posing a safety risk.

[0015] This application provides a diameter detection device 100. Please refer to [link / reference]. Figure 1 as well as Figure 2 The bore diameter testing device 100 is used to test the workpiece 300. The workpiece 300 includes, but is not limited to, drill pipes, delivery pipes, etc. The bore diameter testing device 100 may include a cabinet 110, a drive unit 120, a bore gauge 130, a torque limiter 140, and a testing assembly 150. The drive unit 120 and the testing assembly 150 are mounted on the cabinet 110, and the torque limiter 140 connects the drive unit 120 and the bore gauge 130.

[0016] Please see Figure 1 The cabinet 110 can be made of metal, such as Q235 steel or aluminum alloy, without limitation. The cabinet 110 can be a frame structure, which reduces weight compared to a solid structure. The drive component 120 and the detection assembly 150 are fixed to the cabinet 110, and specific fixing methods include, but are not limited to, threaded connections, riveting, and snap-fitting. The drive component 120 is connected to the gauge 130 via a drive motor, etc., and is used to drive the movement of the gauge 130. The gauge 130 can be a cylinder, etc., and can be hollow to reduce the driving load on the drive component 120.

[0017] Please see Figure 3 as well as Figure 4The drive component 120 is also equipped with a reducer 122, which can be a planetary reducer or a gear reducer, etc., without limitation. The reducer 122 can reduce the speed of the gauge 130 to a preset value, and can make a judgment based on the size of the part to be inspected 300, etc., without limitation. This can prevent the speed of the drive component 120 from being too fast, which would reduce the detection stability of the gauge 130. The torque limiter 140 is connected between the drive component 120 and the gauge 130. The torque limiter 140 is used to connect the torque transmission between the drive component 120 and the gauge 130, and when the torque of the drive component 120 is greater than the torque threshold, the torque limiter 140 limits or cuts off the torque transmission between the drive component 120 and the gauge 130. The detection component 150 is used to detect the motion information of the gauge 130, and determines whether the effective diameter of the part to be inspected 300 is qualified based on the motion information. The motion information includes, but is not limited to, the speed and displacement of the gauge 130, etc., without limitation. Effective bore diameter qualification refers to the minimum passable diameter inside the test piece 300 (such as a pipe or drill pipe), meeting the preset design specifications or usage requirements, and free from defects such as foreign objects, deformation, or diameter reduction that affect fluid transport or tool passage. If the bore gauge 130 can pass smoothly inside the test piece 300, the detection assembly 150 determines that the effective bore diameter of the test piece 300 is qualified. The bore gauge 130 is configured to correspond to the inner diameter or shape of the test piece 300. When foreign objects are present inside the test piece 300, they will obstruct the movement of the bore gauge 130, and the torque of the drive component 120 driving the bore gauge 130 will gradually increase. When the torque of the drive component 120 exceeds the torque threshold, the torque limiter 140 restricts or cuts off the torque transmission between the drive component 120 and the gauge 130. The torque of the drive component 120 driving the gauge 130 will not exceed the torque threshold, and the speed of the gauge 130 will gradually decrease to zero or below the speed threshold. At this time, the detection component 150 detects the speed of the gauge 130, and determines that the effective diameter of the part to be tested 300 is unqualified. The detection component 150 can control the drive component 120 to close to avoid damaging the gauge 130 and the drive component 120.

[0018] Understandably, please refer to Figure 4 as well as Figure 5This application includes a torque limiter 140 between the drive component 120 and the gauge 130. When there are minute foreign objects or slight structural deformation inside the test piece 300, the torque limiter 140 acts as a torque constraint, limiting the driving force on the gauge 130 to a preset safety range. For example, the torque limiter 140 cuts off the torque transmission between the drive component 120 and the gauge 130, causing the drive component 120 to slow down and stop. Alternatively, the torque limiter 140 restricts the torque transmission between the drive component 120 and the gauge 130, making it impossible for the drive component 120 to overcome the resistance from the foreign object, thus preventing the drive component 120 from continuing to move. In this case, the detection assembly 150 can control the drive component 120 to close, preventing damage to the gauge 130 and the drive component 120. This avoids forcing the foreign object or the inner wall of the test piece 300 through increased torque, preventing false passes due to overload of the drive component 120 and improving the reliability of the detection results. Furthermore, the torque limiter 140 restricts the transmission torque between the drive component 120 and the gauge 130, effectively preventing structural damage to the drive component 120 due to overload operation. This feature protects the drive component 120 and prevents it from failing to pass the test due to overload, thus improving the reliability of the test.

[0019] In the embodiments of this application, please refer to Figure 6 The bore gauge 100 may further include a transmission member 161 and a limiting member 162. The transmission member 161 may be a gear or similar, and is not limited thereto. The bore gauge 130 is provided with a drive chain 131. The transmission member 161 is connected to a torque limiter 140 and is drive-connected to the drive chain 131. The limiting member 162 may have a sheet-like structure or similar, and is not limited thereto. The limiting member 162 is disposed on the periphery of the transmission member 161 and is spaced apart from the transmission member 161. The limiting member limits and abuts the drive chain in a direction close to the transmission member. For example, the limiting member 162 can limit and abut the drive chain 131 in a radially inward direction along the transmission member 161. The transmission member 161 and the drive chain 131 form a transmission connection, and the limiting member 162 abuts and limits the drive chain 131 in a radially inward direction along the transmission member 161. The limiting component 162 acts as a constraint, effectively counteracting the centrifugal force generated when the drive chain 131 moves, preventing the drive chain 131 from flying off the preset motion trajectory due to centrifugal force, and ensuring the structural safety and transmission stability of the entire device during operation.

[0020] In one implementation, please refer again. Figure 5The drive chain 131 includes multiple segments 1311 and multiple connecting blocks 1312. The number of segments 1311 and connecting blocks 1312 is not limited to two, three, or even more. Both segments 1311 and connecting blocks 1312 are made of metal, such as 45# steel, stainless steel, or aluminum alloy, etc. A segment 1311 can consist of two plate-like structures and two columnar structures, with the two columnar structures connecting the opposite ends of the two plate-like structures. Each connecting block 1312 connects between two adjacent segments 1311. The drive chain 131 is composed of multiple segments 1311 sequentially hinged together via connecting blocks 1312. The transmission component 161 is a gear disk, which meshes with the drive chain 131. The transmission component 161 adopts a gear disk structure and forms a meshing transmission with the drive chain 131. The hinged design of the sub-section 1311 and the connecting block 1312 in this application gives the drive chain 131 a bendable characteristic. Compared with the traditional rigid drive rod, it can be folded and retracted when not in operation, which greatly reduces the storage space occupied. At the same time, the meshing transmission method ensures the accuracy of power transmission, taking into account both storage convenience and transmission reliability.

[0021] Preferably, a stabilizer 165 is also provided on the outer periphery of the drive chain 131. The stabilizer 165 can support the sub-link 1311 or the connecting block 1312 to ensure that the sub-link 1311 or the connecting block 1312 is on the axis of the component under test 300. This can prevent the drive chain 131 from bending and failing to transmit power correctly due to gravity collapse. Furthermore, there are multiple stabilizers 165, which are spaced apart on the drive chain 131 to ensure stable transmission.

[0022] Please refer again to the embodiments in this application. Figure 4 The gauging device 100 may further include a guide tube 163 and a support member 164. The guide tube 163 supports and guides the gauging gauge 130 into the workpiece 300 to be tested. The guide tube 163 and the gear disk are spaced apart. The support member 164 is located between the guide tube 163 and the gear disk and supports the drive chain 131. The spaced arrangement provides sufficient buffer space for the retraction of the gauging gauge 130. The segments 1311 of the drive chain 131 can be flexibly bent within this space. Multiple segments 1311 can absorb the impact energy generated when the gauging gauge 130 is retracted through slight bending, avoiding direct collision between the gauging gauge 130 and the gear disk, thus preventing structural damage. At the same time, the support member 164, by supporting the drive chain 131, prevents it from collapsing or shifting due to its own weight or transmission force, ensuring the smoothness of the transmission process.

[0023] Preferably, the guide tube 163 has a through hole, and the gauge detection device 100 is equipped with a detection element, which can be a photoelectric sensor or a limit switch, etc. The detector is located at the through hole and is used to detect the position and speed of the gauge 130. For example, there can be multiple through holes and detectors, such as two, three, or even more. Each through hole and detector corresponds to one other. The speed of the gauge 130 can be calculated by the time difference between the gauge 130 passing through two adjacent through holes and the distance between the two adjacent through holes. Of course, the detector can also detect whether the gauge 130 has returned to the designated position to improve safety and avoid accidents caused by the gauge 130 not returning to its correct position; this will not be elaborated upon here.

[0024] Please see Figure 6 Along the first direction, the projection of the limiting member 162 is connected to or at least partially overlaps with the support member 164, and the first direction is perpendicular to the direction from the guide tube 163 to the gear disk. This arrangement enables the limiting member 162 and the support member 164 to form a continuous support and guide channel, ensuring that the drive chain 131 is always in a stable constrained and supported state when transitioning from the support member 164 to the limiting member 162, avoiding jamming or deviation of the drive chain 131 due to the gap between the two, and ensuring the continuity and stability of power transmission.

[0025] Preferably, the minimum distance between the support member 164 and the transmission member 161 is less than the length of the sub-section 1311. This dimensional design limits the movement space of the sub-section 1311 between the support member 164 and the transmission member 161, preventing the sub-section 1311 from bending unpredictably due to excessive distance. This ensures that the drive chain 131 enters the meshing area of ​​the transmission member 161 in a straight line or along a predetermined trajectory, preventing meshing failure or transmission jamming caused by bending of the sub-section 1311, and guaranteeing the smooth passage and transmission effectiveness of the drive chain 131.

[0026] In the embodiments of this application, please continue to refer to Figure 6 The support component 164 may include a support body 1641 and a support block 1642. The support body 1641 is fixed to the cabinet 110. The fixing method can be threaded connection or riveting, etc., and is not limited. The support block 1642 may be a block structure. The support block 1642 includes a first part and a second part, the width of the first part is greater than the width of the second part, and the surface of the first part near the drive chain 131 is connected to the second part. The support block 1642 is detachably installed on the support body 1641 and is used to support the drive chain 131. The support block 1642 contacts the drive chain 131 and provides support. When the support block 1642 becomes excessively worn due to long-term friction with the drive chain 131, the support block 1642 can be replaced separately by disassembly without replacing the entire support component 164, reducing equipment maintenance costs, ensuring rapid restoration of support function, and improving equipment utilization efficiency.

[0027] Please see Figure 7 The diameter detection device 100 may further include a storage tray 170, which is mounted on the cabinet 110. The storage tray 170 has a receiving channel 171, which is bent and extended to receive the drive chain 131. The storage tray 170 has an outlet communicating with the receiving channel 171. The drive chain 131 extends through the outlet and is connected to the drive component 120 for transmission. The drive chain 131 is stored in the storage tray 170 through the receiving channel 171, and the drive chain 131 meshes with the transmission component 161 through the outlet to form a transmission engagement. The bent receiving channel 171 can provide an orderly storage path for the drive chain 131 in a limited space, allowing the drive chain 131 to be arranged neatly according to a preset trajectory, avoiding entanglement and jamming caused by messy stacking. At the same time, it greatly reduces the space occupied by the drive chain 131 for storage, realizing convenient storage and quick access to the drive chain 131, and ensuring the structural compactness of the device in the non-working state and the smooth transmission during operation.

[0028] In one implementation, please refer to [link / reference needed]. Figure 7 The receiving channel 171 includes multiple straight segments 1711 and multiple bent segments 1712. The straight segments 1711 are arranged at intervals, and each bent segment 1712 connects to two adjacent straight segments 1711, so that the multiple straight segments 1711 are connected end to end. Further, the receiving channel 171 can be a reciprocating bent channel structure, or it can be a segmented spiral channel structure. The receiving channel 171 is composed of multiple spaced straight segments 1711 and bent segments 1712 connecting adjacent straight segments 1711, forming a continuous channel. This structure allows the drive chain 131 to be arranged orderly along the straight segments 1711 during storage, while the bent segments 1712 enable the direction change of the drive chain 131, preventing the drive chain 131 from tangling or knotting during storage. It also facilitates the smooth movement of the drive chain 131 along the channel during output and retraction, improving the efficiency of storage and release.

[0029] Preferably, the storage disk 170 includes a first part and a second part, with multiple straight sections 1711 disposed in the first part and multiple bent sections 1712 disposed in the second part. When it is necessary to accommodate a longer drive chain 131, the accommodating channel 171 is extended by splicing more first parts between the two second parts, thereby increasing the accommodating capacity of the storage disk 170.

[0030] In another embodiment, the receiving channel 171 is spiral-shaped. In other words, the extension path of the receiving channel 171 is spiral. The spiral structure allows the drive chain 131 to be stored layer by layer along an arc-shaped spiral trajectory, forming a compact coiled state. This not only maximizes the utilization of the internal space of the storage disk 170, but also prevents the layers of the drive chain 131 from being squeezed or tangled, ensuring the smoothness of the drive chain 131 during storage and release, and further optimizing the storage effect and space utilization.

[0031] Please refer again to the embodiments in this application. Figure 4 The drive unit 120 may be equipped with a first drive shaft 121, which is connected to the input end of the torque limiter 140. The bore detection device 100 also includes a second drive shaft 180, which is connected to the output end of the torque limiter 140 and the bore gauge 130. The detection component 150 is used to detect the motion information of the second drive shaft 180. The first drive shaft 121 and the second drive shaft 180 are connected by the torque limiter 140, and the detection component 150 collects the motion information of the second drive shaft 180 in real time. The torque limiter 140 can selectively connect or disconnect the power transmission between the two drive shafts according to a preset torque threshold. When the bore gauge 130 encounters overload resistance, the torque limiter 140 disconnects the transmission to prevent damage to the drive unit 120 and the bore gauge 130 due to overload. At the same time, the detection component 150 provides data support for the judgment of the detection results through the motion information feedback of the second drive shaft 180.

[0032] In one implementation, please refer to Figure 8 The detection component 150 may include an encoder disk 151, a sensor 152, and a controller. The controller may include a processor and a memory. The processor may include a processing chip or a microcontroller, and the memory stores control instructions for the processor to execute control operations. The sensor 152 and the controller are electrically connected, and the encoder disk 151 is connected to the second drive shaft 180. The sensor 152 is used to determine whether the effective diameter of the workpiece 300 to be detected is qualified based on motion information. The sensor 152 may be a photoelectric sensor, a contact sensor, etc., and is not limited thereto. The encoder disk 151 may be a disk with multiple notches, and is not limited thereto. The encoder disk 151 moves synchronously with the second drive shaft 180, and it provides feedback on the displacement and speed parameters of the gauge 130. The sensor 152 can acquire the displacement and speed parameters of the gauge 130. The controller determines whether the effective diameter is qualified by using a preset threshold, which improves the accuracy and objectivity of the detection results compared to the traditional manual judgment method, while realizing the automated control of the detection process.

[0033] Understandably, the motion information includes displacement and velocity. The detection component 150 determines that the effective bore of the workpiece 300 is unqualified when both the velocity and displacement of the gauge 130 are less than a velocity threshold and a displacement threshold, respectively. Conversely, it determines that the effective bore of the workpiece 300 is qualified when the displacement of the gauge 130 is equal to or greater than the displacement threshold, and controls the drive component 120 to reverse. The velocity threshold can be 0 or a specific value and is not limited. The displacement threshold can be the length of the drill pipe or the length of a desired inspection section. When both the velocity and displacement of the gauge 130 are less than the velocity threshold and a displacement threshold, the gauge 130 has not reached the predetermined position and its velocity decreases, indicating that the gauge 130 has encountered resistance and cannot pass through. The drive is then stopped by the torque limiter 140. The detection component 150 can determine that the effective bore of the workpiece 300 is unqualified, and the workpiece 300 may have problems such as foreign objects or structural deformation. When the displacement reaches or exceeds the displacement threshold, the gauge is deemed qualified, and the drive unit 120 is controlled to reverse and retract the gauge 130. At this time, the gauge 130 can move smoothly to the predetermined position, indicating that the gauge 130 can pass smoothly. At the same time, the detection component 150 avoids damage to the drive unit 120 due to continuous overload, and achieves safe retrieval of the gauge 130 through automatic reversal, thus balancing detection reliability and equipment protection functions.

[0034] To achieve the above and other related objectives, this application provides a diameter detection component 200. Please refer to [link to relevant documentation]. Figure 2 The diameter detection assembly 200 includes the diameter detection device 100 and the support device 210 as described above, with the support device 210 corresponding to the diameter detection device 100. The support device 210 is used to support and adjust the relative position of the workpiece 300 to be tested, so that the workpiece 300 to be tested and the diameter gauge 130 are correspondingly set.

[0035] Understandably, please refer to Figure 9The support device 210 may include a frame 211, a support member 212, and a rotating member 213. The support member 212 is disposed on the frame 211. The support member 212 has a support shaft, and the rotating member 213 is rotatably connected to the support shaft of the support member 212. The rotating member 213 is used to support the part 300 to be tested. The frame 211 can provide an installation reference for the support member 212. The support shaft of the support member 212 and the rotating member 213 form a rotational engagement, and the part 300 to be tested is placed on the rotating member 213 to achieve stable support. Through the rotational movement of the rotating member 213 around the support shaft, the part 300 to be tested can be driven to move along its own axial direction. The part 300 can be aligned in different directions without disassembly and repositioning, meeting the needs of multi-directional testing. At the same time, the rotational engagement reduces the frictional resistance during position adjustment, ensuring the smoothness of the adjustment process and the convenience of operation. There can be multiple support devices 210. Multiple support devices 210 simultaneously support and adjust the relative position of the part 300 to be tested, thereby improving the stability of use.

[0036] 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 a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0037] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0038] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A diameter detection device for detecting a workpiece, characterized in that, The bore detection device includes a cabinet, a drive unit, a bore gauge, a torque limiter, and a detection assembly, wherein: The driving component and the detection assembly are fixed to the cabinet. The driving component is connected to the gauge and is used to drive the gauge to move. The torque limiter is driven between the drive member and the gauge; The torque limiter is used to connect the torque transmission between the drive member and the gauge, and when the torque of the drive member is greater than the torque threshold, the torque limiter restricts or cuts off the torque transmission between the drive member and the gauge. The detection component is used to detect the motion information of the gauge and, based on the motion information, determine whether the effective diameter of the part to be tested is qualified. The gauge testing device includes a transmission component and a limiting component. The gauge is provided with a drive chain. The transmission component is connected to the torque limiter and is also connected to the drive chain. The limiting component is located on the periphery of the transmission component and is spaced apart from the transmission component. The limiting component limits and abuts against the drive chain in a direction close to the transmission component. The drive unit is provided with a first drive shaft, which is tractively connected to the input end of the torque limiter. The gauge detection device further includes a second drive shaft, which is tractively connected to the output end of the torque limiter and the gauge. The detection component is used to detect the motion information of the second drive shaft. The detection component includes an encoder, a sensor, and a controller. The sensor and the controller are electrically connected. The encoder is connected to the second drive shaft. The sensor is used to determine whether the effective diameter of the part to be tested is qualified based on motion information.

2. The duct diameter detection device according to claim 1, characterized in that, The drive chain includes multiple sub-sections and multiple connecting blocks, each connecting block being connected between two adjacent sub-sections, and the transmission component being a gear disk that meshes with the drive chain; And / or, the gauge detection device further includes a guide tube and a support member, the guide tube being used to support and guide the gauge into the part to be tested, the guide tube and the gear disk being spaced apart, the support member being located between the guide tube and the gear disk, and the support member being used to support the drive chain.

3. The duct diameter detection device according to claim 2, characterized in that, Along the first direction, the projection of the limiting member is in contact with or at least partially overlaps with the support member, and the first direction is perpendicular to the direction from the guide tube to the gear disk.

4. The duct diameter detection device according to claim 2, characterized in that, The support component includes a support body and a support block. The support body is fixed to the cabinet, and the support block is detachably installed on the support body. The support block is used to support the drive chain.

5. The duct diameter detection device according to claim 1, characterized in that, The diameter detection device further includes a storage tray installed inside the cabinet. The storage tray has a receiving channel that bends and extends to accommodate the drive chain. The storage tray has an outlet communicating with the receiving channel, through which the drive chain extends and is connected to the transmission component.

6. The duct diameter detection device according to claim 5, characterized in that, The receiving channel includes multiple straight sections and multiple bent sections. The multiple straight sections are arranged at intervals, and each bent section is connected between two adjacent straight sections so that the multiple straight sections are connected end to end in sequence. Alternatively, the receiving channel may be spiral-shaped.

7. The duct diameter detection device according to claim 1, characterized in that, The motion information includes displacement and velocity. The detection component is used to determine that the effective diameter of the part to be tested is unqualified when the velocity of the gauge is less than a velocity threshold and the displacement is less than a displacement threshold, and to determine that the effective diameter of the part to be tested is qualified when the displacement of the gauge is equal to or greater than a displacement threshold, and to control the drive component to reverse.

8. A duct diameter detection component, characterized in that, Includes a diameter measuring device and a support device as described in any one of claims 1-7, wherein the support device is correspondingly arranged with the diameter measuring device, and the support device is used to support and adjust the relative position of the workpiece to be tested so that the workpiece to be tested and the diameter gauge are correspondingly arranged.

Images