A detection device

Abstract

The utility model provides a kind of detection device, it is related to the quality detection technical field of rod-shaped piece, and detection device is used to detect the coaxality and / or straightness of rod-shaped piece, comprising: setting hole is provided on material placing mechanism, rod-shaped piece is hung on setting hole, and at least part of setting hole is used to be fitted with rod-shaped piece Positioning;Test mechanism, including test sleeve and first drive module;Test sleeve is located below material placing mechanism, and it is coaxially arranged with setting hole, and the inner wall surface of test sleeve is adapted with the outer wall surface to be tested of rod-shaped piece;The output of first drive module is driven to connect with test sleeve, and the output of first drive module drives test sleeve to move up and down along vertical direction, to be set or separated by test sleeve to rod-shaped piece. The technical scheme of the application can effectively solve the problems of low detection efficiency, insufficient automation, complex equipment structure, high cost, long maintenance period and difficult maintenance in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of rod-shaped component quality inspection technology, and more specifically, to a testing device. Background Technology

[0002] In the field of mechanical manufacturing, the screw is a key transmission component, and its coaxiality accuracy directly affects the operational stability, service life, and transmission efficiency of the equipment. Coaxiality refers to the degree of deviation between the screw axis and the design reference axis. If the deviation exceeds the allowable range, it will lead to vibration, accelerated wear, or even functional failure of the mechanical system.

[0003] Screw inspection typically involves multiple parameters, including but not limited to diameter tolerance, pitch accuracy, surface roughness, coaxiality, and straightness. Traditional screw inspection methods are usually performed manually, which is not only inefficient but also susceptible to human factors, leading to problems such as accumulated measurement errors and poor repeatability. Utility Model Content

[0004] The main objective of this invention is to provide a detection device to solve the technical problems of relying on manual inspection of screws in the prior art, which results in low detection efficiency, accumulation of measurement errors, and poor repeatability.

[0005] To achieve the above objectives, this utility model provides a detection device for detecting the coaxiality and / or straightness of a rod-shaped component. The detection device includes a material placement mechanism with a mounting hole, on which the rod-shaped component is suspended. At least a portion of the mounting hole is used for fitting and positioning the rod-shaped component. It also includes a testing mechanism comprising a test sleeve and a first driving module. The test sleeve is located below the material placement mechanism and is coaxially aligned with the mounting hole. The inner wall surface of the test sleeve is adapted to the outer wall surface of the rod-shaped component to be tested. The output end of the first driving module is connected to the test sleeve, driving the test sleeve to move vertically up and down, thereby fitting or separating the rod-shaped component through the test sleeve.

[0006] In some embodiments, the detection device further includes a displacement monitoring mechanism, the detection head of which is positioned toward the rod-shaped member to monitor the displacement of the rod-shaped member during the process of the test sleeve being fitted onto the rod-shaped member.

[0007] In some embodiments, the displacement monitoring mechanism further includes a photoelectric sensor, wherein the light beam emitted by the photoelectric sensor forms a detection area above the head end of the rod-shaped member; wherein, during the process of the test sleeve fitting the rod-shaped member, when the test sleeve pushes the rod-shaped member upward, the head end of the rod-shaped member enters the detection area, thereby causing the photoelectric sensor to generate an electrical signal.

[0008] In some embodiments, the displacement monitoring mechanism further includes a photoelectric sensor, a transmission component, and a support assembly; the support assembly includes a support and a sliding sleeve, the sliding sleeve being disposed above the material placement mechanism and fixedly connected to the support; the transmission component is suspended on the sliding sleeve and can move up and down relative to the sliding sleeve, the lower end of the transmission component being disposed above the head end of the rod-shaped member; the photoelectric sensor is disposed above the transmission component, and the light beam emitted by the photoelectric sensor forms a detection area above the transmission component; wherein, during the process of the test sleeve fitting the rod-shaped member, when the test sleeve pushes the rod-shaped member upward, the head end of the rod-shaped member lifts the transmission component, and the upper end of the transmission component enters the detection area, generating an electrical signal.

[0009] In some embodiments, the transmission component includes a first boss, a rod portion, and a second boss. The first boss and the second boss are respectively connected to the upper and lower ends of the rod portion, and the first boss is pressed onto the sliding sleeve. A spring is sleeved on the rod portion, and the upper and lower ends of the spring are respectively connected to the sliding sleeve and the second boss.

[0010] In some embodiments, the material placement mechanism further includes a conveyor table with a mounting hole; a second drive module, the output of which is connected to the conveyor table to drive the mounting hole to the detection position; when the mounting hole is in the detection position, the mounting hole and the test sleeve are coaxially arranged.

[0011] In some embodiments, the testing device includes a material distribution mechanism. The first material distribution mechanism is located downstream of the testing mechanism along the conveying direction of the conveyor table. The material distribution mechanism includes a feeding section, which is movably configured to remove the rod-shaped member in the feeding position from the mounting hole.

[0012] In some embodiments, the material distribution mechanism includes a first material distribution mechanism and a second material distribution mechanism. The first material distribution mechanism is located downstream of the testing mechanism along the conveying direction of the conveyor table. The first material distribution mechanism includes a first unloading section, which is movably configured to remove one of the qualified rods or unqualified rods at the first unloading position from the mounting hole. The second material distribution mechanism is located downstream of the first material distribution mechanism along the conveying direction of the conveyor table. The second material distribution mechanism includes a second unloading section, which is movably configured to remove the other of the qualified rods or unqualified rods at the second unloading position from the mounting hole.

[0013] In some embodiments, the mounting hole has a notch, and the feeding mechanism further includes a limiting plate. The limiting plate extends along the conveying direction of the conveyor table and is disposed on one side of the conveyor table. The conveyor table is movably disposed relative to the limiting plate. Under the drive of the conveyor table, the notch of the mounting hole can be fitted with or separated from the limiting plate. The limiting plate has a first opening and a second opening for the rod-shaped member to disengage from the notch. The first feeding part of the material distribution mechanism pushes the rod-shaped member out from the first opening. The second feeding part of the second material distribution mechanism pushes the rod-shaped member out from the second opening.

[0014] In some embodiments, the first material distribution mechanism includes a third drive module and a pusher plate. The pusher plate forms a first unloading section. The output end of the third drive module is driven to the pusher plate to push out one of the qualified rod-shaped parts or the unqualified rod-shaped parts. And / or, the second material distribution mechanism includes an unloading plate. The unloading plate is disposed above the conveyor table and is fixedly connected to the limiting plate. The lower part of the unloading plate is disposed below the head end of the rod-shaped part. The pushing part of the unloading plate is disposed towards the notch of the mounting hole. The pushing part forms a second unloading section. Under the drive of the conveyor table, the other of the qualified rod-shaped parts or the unqualified rod-shaped parts interferes with the unloading plate, causing the other of the qualified rod-shaped parts or the unqualified rod-shaped parts to detach from the notch.

[0015] The testing device provided by this invention achieves efficient and accurate testing of the coaxiality and straightness of rod-shaped components through precise mechanical design and intelligent testing processes. The automated testing mode significantly improves testing efficiency, reduces errors caused by manual intervention, and ensures the reliability of test results. Simultaneously, the device's structural design simplifies maintenance, reduces maintenance costs and cycles, and is suitable for long-term stable operation in large-scale production environments. Furthermore, by recording and analyzing testing data, it can provide strong data support for subsequent production process optimization, thereby improving overall product quality and production efficiency, reducing losses caused by quality problems, and enhancing the company's competitiveness. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of an embodiment of a detection device according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of a testing mechanism according to an embodiment of a testing device of the present invention is shown;

[0019] Figure 3 A schematic diagram of the feeding mechanism according to an embodiment of a detection device of the present invention is shown;

[0020] Figure 4 A schematic diagram of the feeding mechanism of an embodiment of a detection device according to the present invention is shown;

[0021] Figure 5 A schematic diagram of a first opening and a second opening is shown in an embodiment of a detection device according to the present invention.

[0022] The above figures include the following reference numerals:

[0023] 100. Material feeding mechanism; 110. Conveying table; 111. Mounting hole; 120. Limiting plate; 121. First opening; 122. Second opening; 123. Third opening; 200. Testing mechanism; 210. Testing sleeve; 220. Rotary wheel; 230. Connecting rod; 240. Slide rail; 300. Displacement monitoring mechanism; 310. Photoelectric sensor; 320. Transmission component; 321. First boss; 322. Rod; 323. Second boss; 324. Spring; 330. Support assembly; 331. Support; 332. Slide rail Set; 400, material distribution mechanism; 410, first material distribution mechanism; 411, third drive module; 412, pusher plate; 420, second material distribution mechanism; 421, unloading plate; 600, loading mechanism; 610, first guide plate; 620, second guide plate; 630, vertical vibrator; 640, adjustment assembly; 641, mounting plate; 642, adjustment column; 643, base plate; 650, limiting component; 660, connecting plate; 700, divider; 710, input end; 720, first output end; 730, second output end. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Please refer to Figures 1 to 5 This utility model provides a detection device for detecting the coaxiality and / or straightness of rod-shaped components, especially screws. The detection device includes: a material placement mechanism 100, which has a mounting hole 111 on it, and the rod-shaped component is suspended in the mounting hole 111. At least a portion of the mounting hole 111 is used for fitting and positioning the rod-shaped component; a testing mechanism 200, including a testing sleeve 210 and a first driving module; the testing sleeve 210 is located below the material placement mechanism 100 and is coaxially arranged with the mounting hole 111, and the inner wall surface of the testing sleeve 210 is adapted to the outer wall surface of the rod-shaped component to be tested; the output end of the first driving module is drivenly connected to the testing sleeve 210, and the output end of the first driving module drives the testing sleeve 210 to move up and down in the vertical direction, so as to fit or separate the rod-shaped component through the testing sleeve 210.

[0026] It should be noted that when the test sleeve 210 and the mounting hole 111 are coaxially arranged, the mounting hole 111 and the test sleeve 210 can form a detection reference. When the rod is a qualified product, the axis of the rod will also coincide with the axis of the test sleeve and the mounting hole 111, and the test sleeve 210 can be smoothly fitted onto the outside of the rod. When the rod is not a qualified product, the axis of the rod does not coincide with the axis of the test sleeve 210 and the mounting hole 111. During the process of fitting the test sleeve 210 onto the outside of the test sleeve 210, it will collide with the rod, causing the rod to move up and down. The coaxial arrangement of the test sleeve 210 and the mounting hole 111, as described here, means that the axis of the test sleeve 210 coincides with the axis of the mounting hole 111. The axis of the mounting hole 111 refers to the axis of the common circle containing points located on the same cross-section of the rod-shaped member, and these points are located on the outer wall of the rod-shaped member and the mounting hole 111. When the mounting hole 111 is a circular hole, its axis is the central axis; when the mounting hole 111 is an arc-shaped hole with a notch, its axis is the vertical line containing the center of the arc segment that fits against the side wall of the rod-shaped member.

[0027] Specifically, the cross-section of the rod-shaped member can be circular, polygonal, elliptical, or other shapes.

[0028] Applying the technical solution of this embodiment, the testing device suspends and positions the rod-shaped component through the mounting hole 111 on the material placement mechanism 100, ensuring that the test sleeve 210 can detect the coaxiality and straightness of the rod-shaped component. The core of the testing mechanism 200 lies in the cooperation between the test sleeve 210 and the first drive module. The first drive module precisely controls the vertical movement of the test sleeve 210, realizing the dynamic detection of the coaxiality and straightness of the rod-shaped component. When the test sleeve 210 moves up and down to fit the rod-shaped component, if the straightness and coaxiality of the rod-shaped component meet the standards, the contact between its outer wall surface and the inner wall surface of the test sleeve is stable, and the test sleeve 210 can move smoothly up and down without causing displacement of the rod-shaped component. Conversely, if the rod-shaped component has quality problems, it will move relative to the test sleeve 210 during the movement, thereby easily identifying defective products through external observation or sensing devices. This technical solution effectively improves testing efficiency, reduces errors caused by manual testing, and lowers equipment costs and maintenance difficulty. It achieves full automation of the testing process, provides a reliable basis for quality control in subsequent production processes, and solves the problems of low testing efficiency, insufficient automation, complex equipment structure, high cost, long maintenance cycle, and high maintenance difficulty in existing technologies.

[0029] Furthermore, in this embodiment, the detection device further includes a displacement monitoring mechanism 300, the detection head of which is positioned toward the rod-shaped member, so as to monitor the displacement of the rod-shaped member by means of the detection head of the displacement monitoring mechanism 300 during the process of the test sleeve 210 fitting the rod-shaped member.

[0030] In this embodiment, the detection device integrates a displacement monitoring mechanism 300. The detection head of this mechanism directly faces the rod-shaped component to be tested, so as to monitor the displacement changes of the rod-shaped component in real time as the test sleeve 210 is fitted onto it. This technical solution aims to provide more accurate data support for the straightness and coaxiality testing of the screw. Through continuous monitoring by the displacement monitoring mechanism 300, subtle displacements of the screw during the testing process can be accurately captured, thereby assessing whether it meets design specifications. This monitoring method not only enhances the accuracy of the detection but also provides quantitative indicators for screw quality management, which helps in the subsequent optimization and adjustment of the production process. During implementation, the displacement monitoring mechanism 300 ensures that the up-and-down movement of the test sleeve 210 can be precisely controlled. Simultaneously, by detecting the up-and-down displacement of the screw, it can efficiently distinguish between qualified and unqualified products, achieving precise screening. In alternative embodiments not shown, the form and installation method of the displacement monitoring mechanism 300 may vary, but its core function—precise monitoring of the displacement of the rod-shaped component—remains unchanged, providing a solid foundation for the improvement and optimization of the fully automated detection process.

[0031] Furthermore, in this embodiment, the displacement monitoring mechanism 300 further includes: a photoelectric sensor 310, the light beam emitted by the photoelectric sensor 310 forming a detection area above the head end of the rod-shaped member; wherein, during the process of the test sleeve 210 fitting the rod-shaped member, when the test sleeve 210 pushes the rod-shaped member upward, the head end of the rod-shaped member enters the detection area, so that the photoelectric sensor 310 generates an electrical signal, and the rod-shaped member is determined to be unqualified.

[0032] In this embodiment, the displacement monitoring mechanism 300 integrates a photoelectric sensor 310, whose emitted light beam forms a detection area above the head end of the rod-shaped component. During the testing process, when the test sleeve 210 performs a fitting action on the rod-shaped component, if the rod-shaped component moves up and down due to coaxiality or straightness defects, its head end (i.e., the nut of the screw) will intrude into the detection area of ​​the photoelectric sensor 310. This physical intervention immediately triggers the photoelectric sensor 310 to generate an electrical signal, thereby automatically identifying the rod-shaped component as a defective product. This design cleverly utilizes the principle of optical detection to achieve precise capture of the screw's minute displacements, completing high-precision detection without complex mechanical contact, significantly improving detection efficiency and accuracy. At the same time, due to the use of non-contact detection, secondary damage that may occur in traditional detection methods is avoided, ensuring the reliability of the detection process and the integrity of the screw.

[0033] Overall, the testing device provided by this invention monitors the positional changes of the screw head in real time through a photoelectric sensor 310 during the up-and-down movement of the test sleeve 210, accurately assessing the straightness and coaxiality of the screw. This innovative solution not only simplifies the equipment structure and reduces costs, but also significantly improves the automation level of testing through intelligent detection methods, providing the machinery manufacturing industry with an efficient and accurate screw quality control solution. Furthermore, by recording test data for qualified and unqualified products, the device can provide valuable feedback information to upstream production processes, helping to continuously optimize production processes and ensure the consistency and stability of product quality.

[0034] Furthermore, in this embodiment, the displacement monitoring mechanism 300 further includes: a photoelectric sensor 310, a transmission component 320, and a support assembly 330; the support assembly 330 includes a support 331 and a sliding sleeve 332, the sliding sleeve 332 is disposed above the material placement mechanism 100 and is fixedly connected to the support 331; the transmission component 320 is suspended on the sliding sleeve 332 and can move up and down relative to the sliding sleeve 332, the lower end of the transmission component 320 is disposed above the head end of the rod-shaped component; the photoelectric sensor 310 is disposed above the transmission component 320, and the light beam emitted by the photoelectric sensor 310 forms a detection area above the transmission component 320; wherein, during the process of the test sleeve 210 sleeved on the rod-shaped component, when the test sleeve 210 pushes the rod-shaped component upward, the head end of the rod-shaped component lifts the transmission component 320, and the upper end of the transmission component 320 enters the detection area, generating an electrical signal.

[0035] In this embodiment, the displacement monitoring mechanism 300 integrates a photoelectric sensor 310, a transmission component 320, and a support assembly 330, forming a precise non-conforming product identification system. The support 331 in the support assembly 330 is fixedly connected to the sliding sleeve 332, which is located above the material placement mechanism 100, ensuring the stability and positional accuracy of the entire monitoring mechanism. The transmission component 320 is suspended on the sliding sleeve 332 and can move up and down on it, with its lower end precisely positioned directly above the head of the rod-shaped component. The photoelectric sensor 310 is positioned above the transmission component 320, and its beam forms a detection area covering the movement path of the transmission component 320. When the test sleeve 210 is fitted onto the screw during the testing process, if the straightness or coaxiality of the screw does not meet the standard, the screw will displace with the up-and-down movement of the test sleeve 210, thereby lifting the transmission component 320 into the detection area of ​​the photoelectric sensor 310, causing the photoelectric sensor 310 to generate an electrical signal, which is a clear indication that the screw is non-conforming. This design not only simplifies the inspection process and automates inspection, but also records and feeds back inspection results in real time, facilitating subsequent data analysis and production adjustments, effectively improving overall production efficiency and product quality. In this embodiment, the transmission component 320 guides the displacement of the rod-shaped component, making it easier to determine whether the rod-shaped component has shifted by observing the state of the transmission component 320. In alternative embodiments, the formation of the inspection area or the installation structure of the transmission component 320 may differ, but the core principle remains the same: identifying defective products through displacement changes, ensuring the flexibility and wide applicability of the solution.

[0036] Furthermore, the transmission component 320 includes: a first boss 321, a rod portion 322, and a second boss 323, the first boss 321 and the second boss 323 being connected to the upper and lower ends of the rod portion 322 respectively, the first boss 321 being pressed onto the sliding sleeve 332; and a spring 324, the spring 324 being sleeved on the rod portion 322, and the upper and lower ends being connected to the sliding sleeve 332 and the second boss 323 respectively.

[0037] This application also provides a testing device, characterized in that the test sleeve 210 has a specific structure including a first boss 321, a rod portion 322 and a second boss 323, and a spring 324 sleeved on the rod portion 322. The first boss 321 and the second boss 323 are respectively located at the upper and lower ends of the rod portion 322, wherein the first boss 321 is pressed onto the sliding sleeve, and the upper and lower ends of the spring 324 are respectively connected to the sliding sleeve and the second boss 323.

[0038] The spring 324 enables the transmission component 320 to quickly reset, ensuring the continuity of the rod-shaped component testing. Furthermore, the first boss 321 allows the transmission component 320 to be suspended on the sliding sleeve 332, and the design of the second boss 323 compresses the spring 324, providing a surface for the spring force to act. The restoring force of the spring 324 acts on the second boss 323, causing the transmission component 320 to reset. In summary, this embodiment, by optimizing the structure of the test sleeve 210, further improves the accuracy, stability, and continuity of the testing device for the coaxiality and straightness of rod-shaped components, enhancing the controllability and consistency of the entire testing process.

[0039] Furthermore, in this embodiment, the material placement mechanism 100 further includes: a conveyor table 110, on which an installation hole 111 is provided; a second drive module, the output end of which is drivenly connected to the conveyor table 110 to drive the installation hole 111 to the detection position; when the installation hole 111 is in the detection position, the installation hole 111 is coaxially arranged with the test sleeve 210.

[0040] In this embodiment, the material placement mechanism 100 is configured to include a conveyor table 110, which has mounting holes 111. Through linkage with the second drive module, the conveyor table 110 can precisely stop at a designated detection position. At this time, the mounting holes 111 are coaxially aligned with the test sleeve 210, ensuring accurate positioning of the screw during the detection process. This design, through precise coaxial setting, achieves efficient detection of screw straightness and coaxiality. The addition of the second drive module makes the entire detection process more automated, requiring no additional manual intervention, and improving the continuity and batch processing capacity of the detection. In other embodiments not shown in the figures, the position of the mounting holes 111 can be adapted to screws of different sizes by adjusting the structure of the conveyor table 110 or the parameters of the second drive module, further expanding the application range of the detection device and improving its versatility and flexibility.

[0041] Furthermore, in this embodiment, the testing device includes a material distribution mechanism 400. The first material distribution mechanism 400 is located downstream of the testing mechanism 200 along the conveying direction of the conveyor table 110. The material distribution mechanism 400 includes a feeding section, which is movably configured to remove the rod-shaped member in the feeding position from the mounting hole 111.

[0042] In this embodiment, the sorting mechanism 400 is located downstream of the testing mechanism 200 along the conveying direction of the conveyor table 110. It includes a movable unloading section capable of removing the rod-shaped component from the mounting hole 111 when it is in the unloading position. This design ensures that the tested screws can be accurately classified and removed. The movable unloading section allows for the separate processing of qualified and unqualified products, avoiding confusion in subsequent processes and improving overall production efficiency and quality control. The addition of the sorting mechanism 400 enables the testing device to not only complete its tasks efficiently and accurately during the testing phase but also to automate the subsequent sorting process, further simplifying the production process, reducing labor costs, and ensuring the rapid recycling or timely processing of the screws, thus guaranteeing the smooth operation of the production line. Of course, in other embodiments not shown, the specific structure of the sorting mechanism 400 and the movement of the unloading section may differ, but its core function remains the same: to efficiently and accurately complete the screw sorting task, thereby enhancing the automation and practicality of the entire testing device.

[0043] Further, in this embodiment, the material distribution mechanism 400 includes: a first material distribution mechanism 410, which is located downstream of the testing mechanism 200 along the conveying direction of the conveyor table 110. The first material distribution mechanism 410 includes a first unloading section, which is movably configured to remove one of the qualified rod-shaped pieces or unqualified rod-shaped pieces at the first unloading position from the mounting hole 111; and a second material distribution mechanism 420, which is located downstream of the first material distribution mechanism 410 along the conveying direction of the conveyor table 110. The second material distribution mechanism 420 includes a second unloading section, which is movably configured to remove the other of the qualified rod-shaped pieces or unqualified rod-shaped pieces at the second unloading position from the mounting hole 111.

[0044] In this embodiment, the design of the sorting mechanism 400 effectively classifies the tested rod-shaped parts, ensuring accurate separation of qualified and unqualified products. The first sorting mechanism 410, located after the testing mechanism 200, has a first unloading section that dynamically responds, precisely removing either qualified or unqualified rod-shaped parts from the mounting hole 111 and guiding them to subsequent processes. Next, the second sorting mechanism 420 continues the process flow, using its second unloading section to identify and remove the other type of rod-shaped part, removing it from the mounting hole 111 and preventing unqualified products from mixing with qualified products. This layout not only optimizes space utilization but also simplifies the sorting logic, improving the overall operating efficiency and accuracy of the device. Through precise positioning and flexible movement, combined with feedback from the testing mechanism, the sorting mechanism 400 achieves efficient sorting, reduces labor costs, and improves the level of production automation. In other embodiments not shown in the figure, the operation of the first feeding section and the second feeding section can be further diversified, for example, by adopting different driving mechanisms or changing the material distribution path, in order to adapt to more diverse rod-shaped parts with different sizes and characteristics, thereby enhancing the versatility and adaptability of the device.

[0045] Furthermore, in this embodiment, as Figure 5 As shown, the mounting hole 111 has a notch, and the material feeding mechanism 100 also includes a limiting plate 120. The limiting plate 120 extends along the conveying direction of the conveying table 110 and is disposed on one side of the conveying table 110. The conveying table 110 is movably disposed relative to the limiting plate 120. Under the drive of the conveying table 110, the notch of the mounting hole 111 can be fitted with or separated from the limiting plate 120. The limiting plate 120 has a first opening 121 and a second opening 122 for the rod-shaped member to disengage from the notch. The first feeding part of the first material distribution mechanism 410 pushes the rod-shaped member out from the first opening 121. The second feeding part of the second material distribution mechanism 420 pushes the rod-shaped member out from the second opening 122.

[0046] In this embodiment, the limiting plate 120 extends along the conveying direction of the conveyor table 110 and is disposed on one side therewith, moving relative to the conveyor table 110. This means that the notch of the mounting hole 111 can be engaged or disengaged from the limiting plate 120 according to the movement of the conveyor table 110. The limiting plate 120 is provided with a first opening 121 and a second opening 122, corresponding to different feeding actions. When the rod-shaped component reaches a specific position during the conveying process, the first feeding part of the first sorting mechanism 410 pushes it out through the first opening 121, realizing the rapid separation and recycling of defective products; similarly, the second feeding part of the second sorting mechanism 420 pushes out the rod-shaped component through the second opening 122, completing the directional conveying of qualified products. This design not only simplifies the equipment structure, but also achieves efficient and accurate sorting by precisely controlling the movement path of the rod-shaped component, reducing equipment costs and maintenance difficulty, while ensuring the accuracy and reliability of the detection results. Throughout the entire testing process, the rod-shaped component is driven by the conveyor table 110, and the limiting plate 120 dynamically engages with the mounting hole 111 notch on the conveyor table 110. When the limiting plate 120 and the mounting hole 111 notch on the conveyor table 110 are in contact, the rod-shaped component is limited. When the limiting plate 120 and the mounting hole 111 notch on the conveyor table 110 are separated, the rod-shaped component can be disengaged from the notch.

[0047] Further, in this embodiment, the first material distribution mechanism 410 includes a third drive module 411 and a pusher plate 412. The pusher plate 412 forms a first unloading section. The output end of the third drive module 411 is driven to the pusher plate 412 to push out one of the qualified rod-shaped parts or the unqualified rod-shaped parts. And / or, the second material distribution mechanism 420 includes an unloading plate 421. The unloading plate 421 is disposed above the conveyor table 110 and is fixedly connected to the limiting plate 120. The lower part of the unloading plate 421 is disposed below the head end of the rod-shaped part. The pushing part of the unloading plate 421 is disposed towards the notch of the mounting hole 111. The pushing part forms a second unloading section. Under the drive of the conveyor table 110, the other of the qualified rod-shaped parts or the unqualified rod-shaped parts interferes with the unloading plate 421, causing the other of the qualified rod-shaped parts or the unqualified rod-shaped parts to detach from the notch. It should be noted that the rod-shaped head end mentioned in this utility model refers to the nut part of the screw.

[0048] In this embodiment, the first sorting mechanism 410 includes a third drive module 411 and a pusher plate 412. The pusher plate 412, as a key component of the first unloading section, can perform a pushing action under the drive of the third drive module 411, accurately processing one of the qualified or unqualified rod-shaped parts. Simultaneously, the second sorting mechanism 420 is equipped with an unloading plate 421, which is fixed to the limiting plate 120 and located above the conveyor table 110, acting as the second unloading section. During the operation of the conveyor table 110, through dynamic interference with the unloading plate 421, the other type of qualified and unqualified rod-shaped parts is automatically separated, allowing them to naturally detach from the notch, thus ensuring the efficiency and accuracy of the entire sorting process. This design fully utilizes spatial layout and dynamic principles, simplifies the sorting steps, reduces the need for additional power sources, lowers the complexity and energy consumption of the equipment, and simultaneously improves sorting speed and accuracy, achieving an automated upgrade in rod-shaped part quality control. In an alternative embodiment, the material distribution effect can be further optimized by adjusting the shape of the pusher plate 412 or changing the position of the feed plate 421 to adapt to the processing needs of rod-shaped parts of different sizes and shapes.

[0049] Furthermore, such as Figure 3 As shown, the detection device also includes a feeding mechanism 600, which includes a discharge section with a rod-shaped member at the discharge section; a third opening 123 is provided on the limiting plate 120, and the discharge section is located at the third opening 123. Under the drive of the conveyor table 110, the discharge section can be arranged opposite to the notch of the mounting hole 111, and the discharge section can be movably arranged to send the rod-shaped member into the mounting hole 111.

[0050] Specifically, the feeding mechanism 600 includes a first guide plate 610 and a second guide plate 620, which are arranged opposite to each other and have a gap between them, forming a conveying channel for the rod-shaped member.

[0051] The first guide plate 610 and the second guide plate 620 are connected to the straight vibrator 630 through the connecting plate 660, so as to transmit the vibration of the straight vibrator 630 to the first guide plate 610 and the second guide plate 620, so as to vibrate the rod-shaped member into the mounting hole 111 and realize the feeding operation.

[0052] To adjust the height of the feeding mechanism 600, an adjustment component 640 is provided below the vibrator 630. The adjustment component 640 includes a mounting plate 641, an adjustment column 642, and a base plate 643. The upper and lower ends of the adjustment column 642 are connected to the mounting plate 641 and the base plate 643, respectively. The adjustment column 642 is telescopic to drive the mounting plate 641 to rise and fall. The vibrator 630 is connected to the mounting plate 641.

[0053] A limiting member 650 is also provided above the first guide plate 610 and the second guide plate 620. The limiting member 650 extends along the direction of the conveying channel and is used to limit the upward displacement of the rod-shaped member. Specifically, the limiting member 650 is connected to the upper part of the connecting plate 660. More specifically, the upper part of the connecting plate 660 is provided with a sliding groove, which is opened vertically. The limiting member 650 is connected to the sliding groove through a connector. The connector can be fixedly connected to different positions in the sliding groove, thus adjusting the distance between the limiting member 650 and the first guide plate 610 and the second guide plate 620. This design makes the present invention applicable to screws with different nut heights, enhancing the versatility of the present invention.

[0054] Furthermore, such as Figure 4 As shown, the detection device further includes a drive motor and a divider 700. The divider 700 includes an input terminal 710, a first output terminal 720, and a second output terminal 730. The input terminal 710 is connected to the output terminal of the drive motor. The first output terminal 720 forms a second drive module, which is driven and connected to the conveyor table 110 to drive the conveyor table 110 to rotate in a horizontal plane. The second output terminal 730 forms the first drive module, which is driven and connected to the test sleeve 210 to drive the test sleeve 210 to move vertically up and down. This application uses a drive motor connected to the divider. The divider 700 has multiple output terminals, which can realize multiple action drives, reducing the complexity of the equipment and maintenance costs, and achieving the goal of low-cost, high-efficiency, and easy-to-maintain fully automatic screw detection.

[0055] Furthermore, such as Figure 2 As shown, the testing mechanism 200 also includes a rotating wheel 220, a connecting rod 230, and a slide rail 240. The center of the rotating wheel 220 is connected to the output end of the first drive module. One end of the connecting rod 230 is eccentrically connected to the rotating wheel 220, and the other end of the connecting rod 230 is connected to the test sleeve 210. The part of the test sleeve 210 is slidably connected to the slide rail 240, and the slide rail 240 is vertically mounted on the bracket 331.

[0056] The working process of the testing device in this application is as follows: First, the rod-shaped component is fed through the feeding mechanism 600, precisely guided, and suspended in the mounting hole 111 of the placement mechanism 100. This mounting hole 111 has a notch design to facilitate the operation of the subsequent material distribution mechanism. Subsequently, the conveyor table 110 of the placement mechanism 100 moves to the testing position under the control of the second drive module. At this time, the mounting hole 111 and the test sleeve 210 in the testing mechanism 200 are coaxially aligned to ensure accurate positioning of the rod-shaped component during the testing process. The test sleeve 210 moves up and down vertically under the drive of the first drive module to fit and separate the rod-shaped component, thereby dynamically detecting its straightness and coaxiality. During the test, the photoelectric sensor 310 in the displacement monitoring mechanism 300 monitors the position of the head end of the rod-shaped component in real time. If the rod-shaped component is displaced as the test sleeve 210 moves up and down, the photoelectric sensor 310 will receive a signal and determine that the rod-shaped component is a defective product. After testing, the conveyor 110 moves the rod-shaped component to the distribution mechanism 400 area. The third drive module 411 of the first distribution mechanism 410 drives the pusher plate 412 to push out the defective rod-shaped component, which is then guided to the recycling point by the defective product guide plate. The second distribution mechanism 420 uses the interference of the unloading plate 421 to allow the qualified rod-shaped component to naturally detach from the mounting hole 111 and be unloaded along the qualified product guide plate, entering the subsequent production process. The entire testing process is automated, efficient, and accurate, achieving precise control over the quality of the rod-shaped component and providing feedback data for the production process to optimize production processes.

[0057] In the above process, the limiting plate 120 of the material placement mechanism 100, in conjunction with the movement of the conveyor table 110, achieves precise sorting of rod-shaped parts through the first opening 121 and the second opening 122. The up-and-down movement of the test sleeve 210 is completed by the rotating wheel 220 and the connecting rod 230 in coordination, ensuring the stability and accuracy of the detection. In the displacement monitoring mechanism 300, the transmission component 320 is suspended on the sliding sleeve 332 by the spring 324, with its lower end positioned above the head end of the rod-shaped part. The photoelectric sensor 310 forms a detection area above the transmission component 320 to monitor the displacement changes of the rod-shaped part in real time. The material sorting mechanism 400, through the cooperation of the first material sorting mechanism 410 and the second material sorting mechanism 420, achieves precise differentiation and processing of qualified and unqualified rod-shaped parts. The pusher plate 412 of the first material sorting mechanism 410 pushes the rod-shaped parts outward under the drive of the third drive module 411, while the unloading plate 421 of the second material sorting mechanism 420, through interference with the conveyor table 110, causes the rod-shaped parts to detach from the notch, completing the unloading process. The entire detection device, relying on the dual-axis output characteristic of the divider, uses only one drive motor to realize the entire process of feeding, detection, and sorting, simplifying the structure, reducing maintenance costs, and maintaining high efficiency and accuracy in detection.

[0058] The testing device provided by this invention achieves efficient and accurate testing of the coaxiality and straightness of rod-shaped components through precise mechanical design and intelligent testing processes. The automated testing mode significantly improves testing efficiency, reduces errors caused by manual intervention, and ensures the reliability of test results. Simultaneously, the device's structural design simplifies maintenance, reduces maintenance costs and cycles, and is suitable for long-term stable operation in large-scale production environments. Furthermore, by recording and analyzing testing data, it can provide strong data support for subsequent production process optimization, thereby improving overall product quality and production efficiency, reducing losses caused by quality problems, and enhancing the company's competitiveness.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detection device, characterized in that, The detection device is used to detect the coaxiality and / or straightness of the rod-shaped member, and the detection device includes: A material placement mechanism (100) is provided with a mounting hole (111), and the rod-shaped member is suspended on the mounting hole (111). At least a portion of the mounting hole (111) is used for fitting and positioning with the rod-shaped member. The testing mechanism (200) includes a testing sleeve (210) and a first driving module. The testing sleeve (210) is located below the material placement mechanism (100) and is coaxially arranged with the mounting hole (111). The inner wall surface of the testing sleeve (210) is adapted to the outer wall surface of the rod-shaped member to be tested. The output end of the first driving module is drivenly connected to the testing sleeve (210). The output end of the first driving module drives the testing sleeve (210) to move up and down in the vertical direction so as to put on or separate the rod-shaped member through the testing sleeve (210).

2. The detection device according to claim 1, characterized in that, The detection device further includes: A displacement monitoring mechanism (300) is provided, with its detection head facing the rod-shaped member, so as to monitor the displacement of the rod-shaped member by means of the detection head of the displacement monitoring mechanism (300) during the process of the test sleeve (210) fitting the rod-shaped member.

3. The detection device according to claim 2, characterized in that, The displacement monitoring mechanism (300) also includes: A photoelectric sensor (310) emits a light beam that forms a detection area above the head end of the rod-shaped member; During the process of the test sleeve (210) fitting the rod-shaped member, when the test sleeve (210) pushes the rod-shaped member upward, the head end of the rod-shaped member enters the detection area, so that the photoelectric sensor (310) generates an electrical signal.

4. The detection device according to claim 2, characterized in that, The displacement monitoring mechanism (300) also includes: The device comprises a photoelectric sensor (310), a transmission component (320), and a support assembly (330). The support assembly (330) includes a support (331) and a sliding sleeve (332). The sliding sleeve (332) is disposed above the material placement mechanism (100) and is fixedly connected to the support (331). The transmission component (320) is suspended on the sliding sleeve (332) and can move up and down relative to the sliding sleeve (332). The lower end of the transmission component (320) is disposed above the head end of the rod-shaped component. The photoelectric sensor (310) is disposed above the transmission component (320), and the light beam emitted by the photoelectric sensor (310) forms a detection area above the transmission component (320). During the process of the test sleeve (210) fitting the rod-shaped member, when the test sleeve (210) pushes the rod-shaped member upward, the head end of the rod-shaped member lifts the transmission member (320), and the upper end of the transmission member (320) enters the detection area, generating an electrical signal.

5. The detection device according to claim 4, characterized in that, The transmission component (320) includes: A first boss (321), a rod portion (322), and a second boss (323) are respectively connected to the upper and lower ends of the rod portion (322), and the first boss (321) is pressed onto the sliding sleeve (332). A spring (324) is sleeved on the rod (322), and the upper and lower ends of the spring (324) are respectively connected to the sliding sleeve (332) and the second boss (323).

6. The detection device according to claim 1, characterized in that, The feeding mechanism (100) further includes: A conveyor table (110) is provided with the mounting hole (111). The second drive module has its output end connected to the conveyor (110) to drive the mounting hole (111) to the detection position. When the mounting hole (111) is in the detection position, the mounting hole (111) is coaxially arranged with the test sleeve (210).

7. The detection device according to claim 6, characterized in that, The detection device includes: The material distribution mechanism (400) is located downstream of the test mechanism (200) along the conveying direction of the conveyor table (110). The material distribution mechanism (400) includes a feeding section that is movably configured to remove a rod-shaped member in the feeding position from the mounting hole (111).

8. The detection device according to claim 7, characterized in that, The material distribution mechanism (400) includes: A first material distribution mechanism (410) is located downstream of the test mechanism (200) along the conveying direction of the conveyor table (110). The first material distribution mechanism (410) includes a first unloading section, which is movably configured to remove one of a qualified rod or an unqualified rod at the first unloading position from the mounting hole (111). The second material distribution mechanism (420) is located downstream of the first material distribution mechanism (410) along the conveying direction of the conveyor table (110). The second material distribution mechanism (420) includes a second unloading section, which is movably configured to remove either a qualified rod or an unqualified rod that is in the second unloading position from the mounting hole (111).

9. The detection device according to claim 8, characterized in that, The mounting hole (111) has a notch, and the feeding mechanism (100) further includes: A limiting plate (120) extends along the conveying direction of the conveying table (110) and is disposed on one side of the conveying table (110). The conveying table (110) is movably disposed relative to the limiting plate (120). Under the drive of the conveying table (110), the notch of the mounting hole (111) can be fitted with or separated from the limiting plate (120). The limiting plate (120) has a first opening (121) and a second opening (122) for the rod-shaped member to disengage from the notch. The first feeding part of the material distribution mechanism (400) pushes the rod-shaped member out from the first opening (121); the second feeding part of the second material distribution mechanism (420) pushes the rod-shaped member out from the second opening (122).

10. The detection device according to claim 9, characterized in that, The first material distribution mechanism (410) includes a third drive module (411) and a pusher plate (412). The pusher plate (412) forms the first unloading section. The output end of the third drive module (411) is drivenly connected to the pusher plate (412) to drive the pusher plate (412) to push out either a qualified rod or an unqualified rod; and / or, The second material distribution mechanism (420) includes a feeding plate (421), which is disposed above the conveying table (110) and fixedly connected to the limiting plate (120). The lower part of the feeding plate (421) is disposed below the head end of the rod-shaped member. The pushing part of the feeding plate (421) is disposed towards the notch of the mounting hole (111). The pushing part forms a second feeding part. Under the drive of the conveying table (110), either the qualified rod-shaped member or the unqualified rod-shaped member interferes with the feeding plate (421), causing either the qualified rod-shaped member or the unqualified rod-shaped member to detach from the notch.

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