An apparatus for inspecting thin-wall bearings

Abstract

This application relates to the field of bearing testing technology, and in particular to a testing device for thin-walled bearings. The device includes a worktable with a feeding conveyor and a receiving conveyor on either side. A feed plate is located on the top of the worktable between the feeding and feeding conveyors. A conveying mechanism is located on one side of the feed plate. Along the length of the feed plate away from the conveying mechanism, an inner diameter testing mechanism, an outer ring rotation accuracy testing mechanism, and an inner ring rotation accuracy testing mechanism are sequentially arranged. This application utilizes the conveying mechanism to automatically test the bearing rings sequentially along the feed plate to these mechanisms for corresponding tests. During the testing process, each testing mechanism contacts the bearing rings indirectly and with a flexible springback mechanism, thus improving testing accuracy.

Description

Technical Field

[0001] This application relates to the field of bearing testing technology, and in particular to a testing device for thin-walled bearings. Background Technology

[0002] In the field of precision machinery manufacturing, bearings, as core rotating support components, directly determine the operational stability, service life, and noise level of the entire mechanical system through their rotational accuracy. With increasingly stringent requirements for miniaturization and lightweighting in high-end equipment such as industrial robots, precision turntables, and aerospace equipment, thin-walled bearings are finding increasingly widespread application due to their compact structure, light weight, and high rigidity.

[0003] However, the rings of thin-walled bearings have extremely thin walls, making them highly susceptible to elastic deformation during measurement or clamping due to measurement loads or clamping forces. If conventional contact-type testing equipment is used to directly clamp or press the thin-walled bearings for inner and outer diameter and rotational accuracy testing, the rings are prone to deformation, leading to distorted test data and making it difficult to accurately reflect the true dimensions and rotational accuracy of the thin-walled bearing. Furthermore, most existing testing equipment has separate testing stations for single testing items, lacking integrated automated testing capabilities for the inner and outer diameter dimensions and rotational accuracy of thin-walled bearings. Moreover, the testing accuracy of the testing mechanism itself can drift over time, making timely calibration impossible, resulting in low testing efficiency and difficulty in guaranteeing testing accuracy. Therefore, how to accurately and efficiently test the rotational accuracy of thin-walled bearings has become a key technical problem urgently needing to be solved in this field.

[0004] Based on this, those skilled in the art have proposed a testing device for thin-walled bearings, providing a new solution to the aforementioned technical problems. Summary of the Invention

[0005] To address the problems mentioned in the background art, this application provides a testing device for thin-walled bearings.

[0006] The testing equipment for thin-walled bearings provided in this application adopts the following technical solution: A testing device for thin-walled bearings includes a worktable. A feeding conveyor and a loading conveyor are respectively provided on both sides of the worktable. The loading conveyor is used for feeding the thin-walled bearings, and the loading conveyor is used for unloading the thin-walled bearings. A feed plate is provided on the top of the worktable, between one end of the loading and unloading conveyors. A conveying mechanism is provided on the worktable, on one side of the feed plate. Along the length of the feed plate away from the conveying mechanism, an inner diameter detection mechanism for detecting the inner diameter of the thin-walled bearing and a mechanism for detecting... The thin-walled bearing includes an outer diameter detection mechanism, an outer ring rotation accuracy detection mechanism for detecting the rotational accuracy of the outer diameter, and an inner ring rotation accuracy detection mechanism for detecting the rotational accuracy of the inner diameter. A material removal mechanism for removing waste material is provided between the outer diameter detection mechanism and the outer ring rotation accuracy detection mechanism, and between the inner ring rotation accuracy detection mechanism and the inner diameter detection mechanism. A calibration detection mechanism is provided on one side of each of the inner diameter detection mechanism, outer diameter detection mechanism, outer ring rotation accuracy detection mechanism, and inner ring rotation accuracy detection mechanism. The calibration detection mechanism is used to store standard parts or error-proofing parts.

[0007] By adopting the above technical solution, thin-walled bearings are conveyed to the feed plate by the feeding conveyor mechanism, and then transported sequentially along the feed plate by the handling mechanism to the inner diameter detection mechanism, outer diameter detection mechanism, outer ring rotation accuracy detection mechanism, and inner ring rotation accuracy detection mechanism for automatic testing of the corresponding items. During the testing process, each detection mechanism contacts the bearing rings of the thin-walled bearing in an indirect and flexible rebound manner, avoiding the problem of data distortion caused by elastic deformation of the bearing rings due to direct clamping or pressing, thus improving the detection accuracy. At the same time, a material removal mechanism is set between adjacent detection stations to promptly remove unqualified thin-walled bearings from the production line, preventing unqualified products from flowing into the next station, thus improving the overall line detection efficiency and product qualification rate. In addition, by setting a calibration detection mechanism on one side of each detection mechanism, standard parts or error-proofing parts can be sent to the corresponding detection mechanism for self-calibration or error-proofing verification as needed, ensuring the stability of the detection accuracy of each detection mechanism after long-term use.

[0008] Optionally, the conveying mechanism includes a first mounting frame fixedly installed on the top of the workbench and located on one side of the feed plate. A first cylinder is mounted on one side of the first mounting frame. The output end of the first cylinder is connected to a first displacement plate. The first displacement plate is slidably mounted on the first mounting frame. A second cylinder is mounted on the first displacement plate. The output end of the second cylinder is connected to a second displacement plate. The second displacement plate is slidably mounted on the first displacement plate. A conveying plate is fixed on the side of the second displacement plate near the feed plate. The conveying plate has several conveying grooves.

[0009] By adopting the above technical solution, the first cylinder drives the first displacement plate to reciprocate along the length of the first mounting frame, thereby realizing the displacement of the transport plate along the station arrangement direction; the second cylinder drives the second displacement plate to reciprocate along the first displacement plate, thereby realizing the displacement of the transport plate towards or away from the feed plate; several transport grooves on the transport plate are used to support the thin-walled bearings. Through the cooperation of the first cylinder and the second cylinder, the transport plate can sequentially transport the thin-walled bearings to the next inspection station by means of picking up, translating, and releasing, thereby realizing the automatic flow of the thin-walled bearings between the stations without manual intervention and improving the inspection efficiency.

[0010] Optionally, the inner diameter detection mechanism includes a second mounting frame fixedly installed on the top of the workbench near one end of the feeding conveyor mechanism. A first motor is mounted on the top of the second mounting frame, and a first screw is fixedly connected to the output end of the first motor. A third displacement plate is threadedly connected to the outer side of the first screw. The third displacement plate is slidably connected to the second mounting frame. A first detection frame is fixed on the third displacement plate. A first deformation plate is provided on the inner side of the first detection frame. A third cylinder and a first displacement sensor are mounted on one side of the first detection frame. The output ends of the third cylinder and the first displacement sensor are both connected to the first deformation plate. A first spring is provided on one side of the first detection frame. The two ends of the first spring are respectively connected to the first deformation plate and the first detection frame. Inner ring detection blocks are provided on both sides below the first detection frame. One inner ring detection block is fixed to the bottom of the first detection frame, and the other inner ring detection block is fixed to the bottom of the first deformation plate.

[0011] By adopting the above technical solution, when detecting the inner diameter of a thin-walled bearing, the third cylinder drives the first deformation plate to move slightly towards the first detection frame and compress the first spring, causing the inner ring detection block fixed at the bottom of the first deformation plate to retract inward, so that the distance between the two inner ring detection blocks is smaller than the inner diameter of the thin-walled bearing. At this time, the first motor drives the third displacement plate to move downward along the second mounting frame through the first screw, causing the first detection frame and the two inner ring detection blocks to descend as a whole, so that the two inner ring detection blocks extend into the interior of the thin-walled bearing. Subsequently, the third cylinder resets, and the first deformation plate rebounds under the action of the first spring, causing the inner ring detection blocks on it to open outward and abut against the inner wall of the thin-walled bearing. The first displacement sensor collects the relative displacement generated by the rebound of the first deformation plate and adds it to the preset standard value to obtain the actual detection value of the inner diameter of the thin-walled bearing. The same measurement point can be repeatedly detected five or more times and the average value is taken. This detection method allows the inner ring detection blocks to contact the inner wall of the thin-walled bearing in a flexible rebound manner, avoiding the deformation of the rings caused by direct clamping and improving the accuracy of inner diameter detection.

[0012] Optionally, the outer diameter detection mechanism includes a third mounting frame fixedly installed on the top of the workbench and located at the end of the inner diameter detection mechanism away from the feeding conveying mechanism. A second motor is installed on the top of the third mounting frame, and a second screw is fixedly connected to the output end of the second motor. A fourth displacement plate is threadedly connected to the outer side of the second screw. The fourth displacement plate is slidably connected to the third mounting frame. A second detection frame is fixed on the fourth displacement plate. A second deformation plate is provided on the inner side of the second detection frame. A fourth cylinder and a second displacement sensor are respectively installed on both sides of the second deformation plate. The output ends of the fourth cylinder and the second displacement sensor are both connected to the second deformation plate. A second spring is provided on one side of the second detection frame. The two ends of the second spring are respectively connected to the second deformation plate and the second detection frame. Outer diameter detection blocks are provided on both sides below the second detection frame. One outer diameter detection block is fixed to the bottom of the second detection frame, and the other outer diameter detection block is fixed to the bottom of the second deformation plate.

[0013] By adopting the above technical solution, when detecting the outer diameter of a thin-walled bearing, the second motor drives the fourth displacement plate through the second screw to lower the second detection frame to the corresponding height on the outside of the thin-walled bearing. The fourth cylinder drives the second deformation plate to produce a slight displacement and compress the second spring, increasing the distance between the outer diameter detection block fixed at the bottom of the second deformation plate and the outer diameter detection block fixed at the bottom of the second detection frame. This allows the two outer diameter detection blocks to cross over and approach the outer circumference of the thin-walled bearing. Subsequently, the fourth cylinder resets, and the second deformation plate rebounds and resets under the action of the second spring, causing the outer diameter detection block on it to be clamped inward on the outer circumference of the thin-walled bearing. The second displacement sensor collects the relative displacement generated by the rebound of the second deformation plate and adds it to the preset standard value to obtain the actual detection value of the outer diameter of the thin-walled bearing. The same measurement point can be repeatedly detected five or more times and the average value is taken to further improve the detection accuracy. After the inner diameter detection mechanism and the outer diameter detection mechanism complete the detection, the unqualified thin-walled bearings are rejected by the corresponding material removal mechanism, while qualified products are transported to the next detection station.

[0014] Optionally, the material removal mechanism includes a fourth mounting frame installed on the top of the workbench and located on one side of the feed plate. A waste support rod is fixedly installed on the fourth mounting frame. A first mounting plate and a second mounting plate are fixedly installed at the bottom of the fourth mounting frame. The first mounting plate is located above the feed plate, and the second mounting plate is located at the bottom of the feed plate. A clamping ring is fixed on the first mounting plate and below the waste support rod. A plurality of clamping rods are slidably provided around the clamping ring. A third spring is sleeved on the outer side of each clamping rod. The two ends of the third spring abut against the clamping rod and the clamping ring, respectively. A guide slope is provided at one end of each of the clamping rods, and the guide slope is inclined from bottom to top and inward. A lifting cylinder is installed at the bottom of the second mounting plate and below the waste support rod. A top block is fixedly connected to the output end of the lifting cylinder. A support step for supporting the inner ring of the thin-walled bearing is provided on the outer periphery of the top block.

[0015] By adopting the above technical solution, when the thin-walled bearing is detected as a defective product, the lifting cylinder drives the top block to lift upward via the material feed plate. The support steps on the outer periphery of the top block lift the inner ring of the thin-walled bearing and drive the thin-walled bearing to move upward along the waste support rod. The outer side of the thin-walled bearing slides upward along the guide slope of the clamping rod, simultaneously pushing several clamping rods outward and compressing the third spring. After the thin-walled bearing passes the clamping ring, each clamping rod resets and retracts under the elastic force of the third spring, restricting and holding the thin-walled bearing on the waste support rod above the clamping ring. This achieves automatic rejection and temporary collection of defective thin-walled bearings, preventing them from continuing to flow into the next inspection station and facilitating subsequent unified removal and processing.

[0016] Optionally, the outer ring rotation accuracy detection mechanism includes a fifth mounting bracket fixed to the top of the worktable and located at the end of the outer diameter detection mechanism away from the inner diameter detection mechanism. A fifth cylinder and a third motor are mounted on the top of the fifth mounting bracket. The output end of the fifth cylinder is connected to a fifth displacement plate, which is slidably mounted on the fifth mounting bracket. An outer ring support plate is fixed to the bottom of the fifth displacement plate. A first transmission cylinder is fixedly connected to the output end of the third motor. The first transmission cylinder is rotatably mounted on the fifth mounting bracket. A first connecting rod is slidably connected to the inner side of the first transmission cylinder. An outer ring rotation drive block is fixed to the bottom of the first connecting rod. An inner ring support column is fixedly installed on the fifth mounting bracket and below the outer ring support plate. An outer ring rotation detection bracket is provided on one side of the inner ring support column. The outer ring rotation detection bracket is rotatably installed on the fifth mounting bracket. A third displacement sensor is installed on the fifth mounting bracket and on one side of the inner ring support column. One end of the outer ring rotation detection bracket extends into the inner side of the top of the inner ring support column, and the other end is connected to the input end of the third displacement sensor. The inner ring support column is used to support the inner ring of the thin-walled bearing and limit its movement.

[0017] Furthermore, a first transmission rod is fixed on both sides of the top of the first connecting rod, and a plurality of first transmission grooves adapted to the first transmission rod are opened on the outer periphery of the first transmission cylinder. The first transmission rod slides axially on the inner side of the corresponding first transmission groove, and the first transmission groove is used to circumferentially limit the first transmission rod. A sixth cylinder is also installed on the fifth mounting bracket, and the output end of the sixth cylinder is fixedly connected to the first connecting rod.

[0018] By adopting the above technical solution, when testing the rotational accuracy of the outer ring of a thin-walled bearing, the thin-walled bearing is placed on the inner ring support column, which supports and limits the inner ring of the thin-walled bearing. The fifth cylinder drives the fifth displacement plate to move the outer ring support plate downward along the fifth mounting bracket, so that the outer ring support plate presses against the upper end face of the outer ring of the thin-walled bearing. The sixth cylinder drives the first connecting rod to move axially downward along the first transmission cylinder, so that the outer ring rotation drive block presses against the outer ring of the thin-walled bearing. During this process, the first transmission rod always slides axially within the first transmission groove and is limited circumferentially by it. Therefore, the third motor passes through the first transmission cylinder and the first transmission... The rod drives the first connecting rod and the outer ring rotation drive block to rotate synchronously, thereby driving the outer ring of the thin-walled bearing to rotate. At this time, the inner ring of the thin-walled bearing is kept stationary by the inner ring support column. One end of the outer ring rotation detection bracket extends into the inner side of the top of the inner ring support column and abuts against the corresponding part of the rotating thin-walled bearing. If there is axial runout during the rotation of the outer ring, the runout is transmitted to the other end of the outer ring rotation detection bracket through its swing, causing the input end of the third displacement sensor to generate a corresponding displacement. The third displacement sensor collects the displacement in real time, thereby obtaining the rotation accuracy of the outer ring of the thin-walled bearing, i.e., the axial runout value.

[0019] Optionally, the inner ring rotation accuracy detection mechanism includes a sixth mounting frame fixed to the top of the worktable and located at the end of the outer ring rotation accuracy detection mechanism away from the material removal mechanism. A seventh cylinder and a fourth motor are mounted on the top of the sixth mounting frame. The output end of the seventh cylinder is connected to a sixth displacement plate, which is slidably mounted on the sixth mounting frame. Inner and outer ring support plates are fixed to the bottom of the sixth displacement plate. A second transmission cylinder is fixedly connected to the output end of the fourth motor and rotatably mounted on the sixth mounting frame. A second connecting rod is slidably connected to the inner side of the second transmission cylinder, and an inner ring rotation drive block is fixed to the bottom of the second connecting rod. The sixth mounting frame is located at the end of the outer ring rotation accuracy detection mechanism away from the material removal mechanism. An outer ring support column is fixedly installed below the outer ring support plate. An inner ring rotation detection bracket is provided on one side of the outer ring support column. The inner ring rotation detection bracket is rotatably mounted on the sixth mounting bracket. A fourth displacement sensor is installed on the sixth mounting bracket and located on one side of the outer ring support column. Several support blocks for supporting the thin-walled bearing are provided on the inner and outer ring support plates. A clearance groove for accommodating the support blocks is opened on the inner side of the top of the outer ring support column. A detection cavity is opened on the inner side of the top of the outer ring support column. One end of the inner ring rotation detection bracket extends into the inner side of the detection cavity, and the other end is connected to the input end of the fourth displacement sensor. The outer ring support column is used to support the outer ring of the thin-walled bearing and limit its movement.

[0020] Furthermore, a second transmission rod is fixed on both sides of the top of the second connecting rod, and a plurality of second transmission grooves adapted to the second transmission rod are opened on the outer periphery of the second transmission cylinder. The second transmission rod slides axially on the inner side of the corresponding second transmission groove, and the second transmission groove is used to circumferentially limit the second transmission rod. An eighth cylinder is also installed on the sixth mounting bracket, and the output end of the eighth cylinder is fixedly connected to the second connecting rod.

[0021] By adopting the above technical solution, when testing the rotation accuracy of the inner ring of a thin-walled bearing, the thin-walled bearing is supported by support blocks on the inner and outer ring support plates. The seventh cylinder drives the sixth displacement plate to move the inner and outer ring support plates downward along the sixth mounting bracket, so that the thin-walled bearing falls into the limiting range of the outer ring support column. The outer ring support column supports and limits the outer ring of the thin-walled bearing. At the same time, the support block descends synchronously into the clearance groove at the top of the outer ring support column to avoid interference between the support block and the outer ring support column. The eighth cylinder drives the second connecting rod to move downward along the second transmission cylinder axially, so that the inner ring rotation drive block presses on the inner ring of the thin-walled bearing. During this process, the second transmission rod always slides axially in the second transmission groove and is limited circumferentially by it. The fourth motor drives the second connecting rod through the second transmission cylinder and the second transmission rod. The inner ring rotation drive block rotates synchronously, thereby driving the inner ring of the thin-walled bearing to rotate. At this time, the outer ring of the thin-walled bearing is kept stationary by the outer ring support column. One end of the inner ring rotation detection bracket extends into the detection cavity and keeps in contact with the rotating inner ring of the thin-walled bearing. If there is radial runout during the rotation of the inner ring, the runout is transmitted to the other end of the inner ring rotation detection bracket through its swing, causing the input end of the fourth displacement sensor to generate a corresponding displacement. The fourth displacement sensor collects the displacement in real time, thereby obtaining the rotation accuracy of the inner ring of the thin-walled bearing, i.e., the radial runout value. After the outer ring rotation accuracy detection mechanism and the inner ring rotation accuracy detection mechanism complete the detection, the unqualified thin-walled bearings are rejected by the corresponding material removal mechanism, and the qualified products are transported by the handling mechanism and discharged by the unloading conveyor mechanism.

[0022] Optionally, the inner diameter detection mechanism, the outer diameter detection mechanism, the outer ring rotation accuracy detection mechanism, and the inner ring rotation accuracy detection mechanism are all provided with calibration ports. The bottom of the calibration port is aligned with the top of the feed plate. A seventh mounting bracket is fixed on the top of the worktable, on the side of the calibration port away from the feed plate. The calibration detection mechanism includes a ninth cylinder mounted on the seventh mounting bracket and located on the side of the corresponding calibration port. The output end of the ninth cylinder is connected to a seventh displacement plate. The seventh displacement plate is slidably mounted on the seventh mounting bracket. A tenth cylinder is mounted on the top of the seventh displacement plate. An eighth displacement plate is fixedly connected to the output end of the tenth cylinder. The eighth displacement plate is slidably mounted on the seventh displacement plate. Several docking plates are fixed on the side of the eighth displacement plate near the calibration port. A storage plate is slidably provided on the top of the docking plate. A storage slot is provided on the inner side of the storage plate. The storage slot is used to store standard parts or error-proof parts. An eleventh cylinder, the same number as the docking plates, is mounted on the side of the eighth displacement plate away from the docking plates. The output end of the eleventh cylinder is fixedly connected to the corresponding storage plate.

[0023] By adopting the above technical solution, when the corresponding testing mechanism needs to be calibrated or error-proofed, the ninth cylinder drives the seventh displacement plate to move along the seventh mounting bracket, causing the eighth displacement plate, the docking plate, and the storage plate to move as a whole to one side of the corresponding calibration port, so that the docking plate is facing the calibration port; the tenth cylinder drives the eighth displacement plate to move downward along the seventh displacement plate, so that the docking plate extends through the calibration port to a height aligned with the top of the feed plate. Since the bottom of the calibration port is aligned with the top of the feed plate, the standard parts or error-proofing parts in the storage plate can be sent to the same testing height position as the thin-walled bearing under normal testing; the eleventh cylinder drives the storage plate to slide along the docking plate. The system moves the standard or error-proof component in the storage slot to the corresponding testing position of the testing mechanism. The testing mechanism then tests the standard or error-proof component and compares the test results with the known values ​​of the standard component to determine whether the current testing accuracy of the testing mechanism has drifted, or to verify the testing mechanism's error-proofing identification capability for abnormal or erroneous workpieces. After calibration or verification, the eleventh cylinder drives the storage plate to reset and retrieve the standard or error-proof component. The tenth and ninth cylinders then sequentially drive the eighth and seventh displacement plates to reset, causing the calibration testing mechanism to exit to the standby position. Each testing mechanism then resumes normal testing of the thin-walled bearing.

[0024] In summary, this application includes at least one of the following beneficial technical effects: This invention improves the accuracy of measuring the inner and outer diameters of thin-walled bearings by setting deformation plates in the inner diameter measuring mechanism and the outer diameter measuring mechanism in conjunction with springs and cylinders to generate flexible rebound contact, thereby avoiding elastic deformation of the thin-walled bearing rings caused by direct clamping or pressing. This application, by setting up separate outer ring rotation accuracy detection mechanisms and inner ring rotation accuracy detection mechanisms, can drive the outer ring and inner ring of the thin-walled bearing to rotate separately while keeping the other ring stationary. The application also uses a detection bracket and a displacement sensor to collect the runout generated during rotation in real time, thereby realizing the automated detection of the rotation accuracy of the inner and outer rings of the thin-walled bearing. This application, by setting up a material removal mechanism between each inspection station, can automatically and promptly remove and temporarily collect thin-walled bearings that fail inspection, preventing defective products from flowing into the next station and improving the automation level and inspection efficiency of the entire line. This application, by setting up a calibration and testing mechanism, enables standard parts or error-proofing parts to be sent to various testing mechanisms for self-calibration or error-proofing verification as needed, thus ensuring the stability and reliability of the testing accuracy of each testing mechanism after long-term use. Attached Figure Description

[0025] Figure 1 This is a top view of the structure of the present invention.

[0026] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 3 This is a schematic diagram of the transport mechanism of the present invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the inner diameter detection mechanism of the present invention.

[0029] Figure 5 This is a side view of the inner diameter detection mechanism of the present invention.

[0030] Figure 6 This is a three-dimensional structural diagram of the outer diameter detection mechanism of the present invention.

[0031] Figure 7 This is a side view of the outer diameter detection mechanism of the present invention.

[0032] Figure 8 This is a schematic diagram of the material removal mechanism of the present invention.

[0033] Figure 9 This is a cross-sectional structural diagram of the material removal mechanism of the present invention.

[0034] Figure 10 This is a side view of the outer ring rotation accuracy detection mechanism of the present invention.

[0035] Figure 11 This is a three-dimensional structural schematic diagram of the outer ring rotation accuracy detection mechanism of the present invention.

[0036] Figure 12 This is a side view of the inner ring rotation accuracy detection mechanism of the present invention.

[0037] Figure 13 This is a three-dimensional structural schematic diagram of the inner ring rotation accuracy detection mechanism of the present invention.

[0038] Figure 14 This is a schematic diagram of the calibration port of the present invention.

[0039] Figure 15 This is a schematic diagram of the structure of the calibration and detection mechanism of the present invention.

[0040] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Unloading conveyor mechanism; 3. Loading conveyor mechanism; 4. Feeder plate; 100. Handling mechanism; 200. Inner diameter detection mechanism; 300. Outer diameter detection mechanism; 400. Material removal mechanism; 500. Outer ring rotation accuracy detection mechanism; 600. Inner ring rotation accuracy detection mechanism; 700. Calibration detection mechanism; 101. First mounting frame; 102. First displacement plate; 103. First cylinder; 104. Second cylinder; 105. Second displacement plate; 106. Handling plate; 107. Handling trough; 201. Second mounting frame; 202. First motor; 203. Third displacement plate; 204. First detection frame; 205. First deformation plate; 206. First spring; 207. First screw; 208. Inner ring detection block; 209. Third cylinder; 210. First displacement sensor; 301. Third mounting bracket; 302. Second motor; 303. Second screw; 304. Fourth displacement plate; 305. Second detection bracket; 306. Second deformation plate; 307. Second spring; 308. Fourth cylinder; 309. Second displacement sensor; 310. Outer diameter detection block; 401. Fourth mounting bracket; 402. Scrap support rod; 403. First mounting plate; 404. Second mounting plate; 405. Lifting cylinder; 406. Material clamping ring; 407. Top block; 4 08. Clamping rod; 409. Third spring; 4071. Support step; 4081. Guide slope; 501. Fifth mounting bracket; 502. Fifth cylinder; 503. Fifth displacement plate; 504. Outer ring support plate; 505. Third motor; 506. First transmission cylinder; 507. First connecting rod; 508. First transmission rod; 5061. First transmission groove; 509. Sixth cylinder; 510. Outer ring rotation drive block; 511. Inner ring support column; 513. Outer ring rotation detection bracket; 514. Third displacement sensor; 601. Sixth mounting bracket; 602. Seventh cylinder; 603. Sixth displacement plate; 604. Inner and outer ring support plates; 6 05. Fourth motor; 606. Second transmission cylinder; 607. Second connecting rod; 608. Second transmission rod; 6061. Second transmission groove; 609. Inner ring rotation drive block; 610. Eighth cylinder; 611. Outer ring support column; 613. Inner ring rotation detection bracket; 614. Fourth displacement sensor; 6041. Support block; 6111. Clearance groove; 6112. Detection chamber; 701. Calibration port; 702. Seventh mounting bracket; 703. Ninth cylinder; 704. Seventh displacement plate; 705. Tenth cylinder; 706. Eighth displacement plate; 707. Docking plate; 708. Eleventh cylinder; 709. Storage plate; 710. Storage groove. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-15 This application will be described in further detail.

[0042] Reference Figure 1 and Figure 2 This application provides a testing device for thin-walled bearings, including a workbench 1. A feeding conveyor 2 and a feeding conveyor 3 are respectively provided on both sides of the workbench 1. The feeding conveyor 3 is used for feeding the thin-walled bearings, and the feeding conveyor 2 is used for feeding the thin-walled bearings. A feed plate 4 is provided at the top of the workbench 1, between one end of the feeding conveyor 3 and the feeding conveyor 2. The feed plate 4 has several openings spaced along its length for the thin-walled bearings to pass through or for testing components to extend into. A conveying mechanism 100 is provided on the workbench 1, on one side of the feed plate 4. Along the length of the feed plate 4 away from the conveying mechanism 100, an inner diameter testing mechanism 200, an outer diameter testing mechanism 300, an outer ring rotation accuracy testing mechanism 500, and an inner ring rotation accuracy testing mechanism 600 are sequentially arranged. Material removal mechanisms 400 are provided between the outer diameter measuring mechanism 300 and the outer ring rotation accuracy measuring mechanism 500, and between the inner ring rotation accuracy measuring mechanism 600 and the inner diameter measuring mechanism 200. That is, two sets of material removal mechanisms 400 are arranged along the station layout direction, used to remove defective products from the inner and outer diameter measuring stages and the rotation accuracy measuring stages, respectively. A calibration measuring mechanism 700 is provided on one side of each of the inner diameter measuring mechanism 200, outer diameter measuring mechanism 300, outer ring rotation accuracy measuring mechanism 500, and inner ring rotation accuracy measuring mechanism 600.

[0043] During operation, the thin-walled bearing to be tested is conveyed to the feeding end of the feed plate 4 by the feeding conveyor 3, and then transported to the lower end of the feed plate 4 by the transport mechanism 100. The inner diameter detection mechanism 200 and the outer diameter detection mechanism 300 respectively complete the inner diameter and outer diameter detection. Defective products are rejected by the first set of material removal mechanism 400. Qualified products are further transported by the transport mechanism 100 to the outer ring rotation accuracy detection mechanism 500 and the inner ring rotation accuracy detection mechanism 600 to complete the outer ring rotation accuracy and inner ring rotation accuracy detection respectively. Defective products are rejected by the second set of material removal mechanism 400. Qualified products are finally discharged by the unloading conveyor 2, thus completing the fully automatic detection of the inner diameter, outer diameter, and inner and outer ring rotation accuracy of the thin-walled bearing.

[0044] Reference Figure 3The conveying mechanism 100 includes a first mounting frame 101 fixedly installed on the top of the workbench 1 and located on one side of the feed plate 4. The first mounting frame 101 extends along the length of the feed plate 4. A first cylinder 103 is installed on one side of the first mounting frame 101. The output end of the first cylinder 103 is connected to a first displacement plate 102. The first displacement plate 102 is slidably installed on the first mounting frame 101. A second cylinder 104 is installed on the first displacement plate 102. The output end of the second cylinder 104 is connected to a second displacement plate 105. The second displacement plate 105 is slidably installed on the first displacement plate 102. A conveying plate 106 is fixed on the side of the second displacement plate 105 near the feed plate 4. A plurality of conveying grooves 107 are spaced apart along the length of the conveying plate 106. The number and spacing of the conveying grooves 107 correspond one-to-one with each detection station and are used to support thin-walled bearings. The first cylinder 103 drives the first displacement plate 102 to reciprocate along the length of the first mounting frame 101, causing the transport plate 106 to move horizontally along the station arrangement direction; the second cylinder 104 drives the second displacement plate 105 to reciprocate along the first displacement plate 102, causing the transport plate 106 to move closer to or further away from the feed plate 4. The two work together to realize the action cycle of the transport plate 106 descending to pick up materials, moving horizontally, rising to make way or extending to release materials, and retracting, thereby transporting the thin-walled bearings in each transport groove 107 to the next station in sequence.

[0045] Reference Figure 4 and Figure 5 The inner diameter detection mechanism 200 includes a second mounting frame 201 fixedly installed on the top of the workbench 1 near one end of the feeding conveyor mechanism 3. A first motor 202 is mounted on the top of the second mounting frame 201. A first screw 207 is fixedly connected to the output end of the first motor 202. A third displacement plate 203 is threadedly connected to the outer side of the first screw 207. The third displacement plate 203 is slidably connected to the second mounting frame 201. A first detection frame 204 is fixed on the third displacement plate 203. A first deformation plate 205 is provided on the inner side of the first detection frame 204. A third cylinder 209 and a first displacement sensor 210 are mounted on the side, and the output ends of the third cylinder 209 and the first displacement sensor 210 are both connected to the first deformation plate 205; a first spring 206 is provided on one side of the first detection frame 204, and the two ends of the first spring 206 are respectively connected to the first deformation plate 205 and the first detection frame 204; inner ring detection blocks 208 are provided on both sides below the first detection frame 204, one inner ring detection block 208 is fixed to the bottom of the first detection frame 204, and the other inner ring detection block 208 is fixed to the bottom of the first deformation plate 205.

[0046] When detecting the inner diameter of the thin-walled bearing, the third cylinder 209 drives the first deformation plate 205 to move slightly toward the first detection frame 204 and compress the first spring 206, causing the inner ring detection blocks 208 at the bottom of the first deformation plate 205 to retract inward, making the distance between the two inner ring detection blocks 208 smaller than the inner diameter of the thin-walled bearing; at this time, the first motor 202 drives the third displacement plate 203 to move downward along the second mounting frame 201 via the first screw 207, causing the first detection frame 204 and the two inner ring detection blocks 208 to move downward as a whole, so that the two inner ring detection blocks 208 pass through the feed plate 4. The port on the bearing extends into the inner hole of the thin-walled bearing to be tested; then the third cylinder 209 resets, and the first deformation plate 205 rebounds under the elastic force of the first spring 206, causing the inner ring detection block 208 on it to open outward and abut against the inner wall of the thin-walled bearing. The first displacement sensor 210 collects the relative displacement value generated by the rebound of the first deformation plate 205 in real time, and adds the relative displacement value to the preset standard value to obtain the actual detection value of the inner diameter of the thin-walled bearing. In order to improve the detection accuracy, the same measurement point can be repeatedly tested five or more times and the average value can be taken as the final detection result.

[0047] Reference Figure 6 and Figure 7 The structure of the outer diameter detection mechanism 300 is similar to that of the inner diameter detection mechanism 200. It includes a third mounting frame 301 fixedly mounted on the top of the workbench 1 and located at the end of the inner diameter detection mechanism 200 furthest from the feeding conveyor mechanism 3. A second motor 302 is mounted on the top of the third mounting frame 301. A second screw 303 is fixedly connected to the output end of the second motor 302. A fourth displacement plate 304 is threadedly connected to the outer side of the second screw 303. The fourth displacement plate 304 is slidably connected to the third mounting frame 301. A second detection frame 305 is fixed on the fourth displacement plate 304. A second deformation sensor is provided on the inner side of the second detection frame 305. Plate 306, a fourth cylinder 308 and a second displacement sensor 309 are respectively installed on both sides of the second deformation plate 306, and the output ends of the fourth cylinder 308 and the second displacement sensor 309 are both connected to the second deformation plate 306; a second spring 307 is provided on one side of the second detection frame 305, and the two ends of the second spring 307 are respectively connected to the second deformation plate 306 and the second detection frame 305; outer diameter detection blocks 310 are provided on both sides below the second detection frame 305, one outer diameter detection block 310 is fixed to the bottom of the second detection frame 305, and the other outer diameter detection block 310 is fixed to the bottom of the second deformation plate 306.

[0048] When detecting the outer diameter of a thin-walled bearing, the second motor 302 drives the fourth displacement plate 304 via the second screw 303, which in turn moves the second detection frame 305 down to the corresponding height on the outside of the thin-walled bearing. The fourth cylinder 308 drives the second deformation plate 306 to produce a slight displacement and compress the second spring 307, increasing the distance between the outer diameter detection block 310 at the bottom of the second deformation plate 306 and the outer diameter detection block 310 at the bottom of the second detection frame 305, so that the two outer diameter detection blocks 310 cross over to the outside of the outer circumference of the thin-walled bearing. Then the fourth cylinder 308 resets, and the second deformation plate 306 rebounds and resets under the elastic force of the second spring 307, causing the outer diameter detection blocks 310 on it to be clamped inward on the outer circumference of the thin-walled bearing. The second displacement sensor 309 collects the relative displacement value generated by the rebound of the second deformation plate 306 in real time, and adds it to the preset standard value to obtain the actual detection value of the outer diameter of the thin-walled bearing. The same measurement point can be repeatedly detected five or more times and the average value is taken. After the inner diameter measuring mechanism 200 and the outer diameter measuring mechanism 300 complete the inspection, the unqualified thin-walled bearings are removed by the corresponding material removal mechanism 400, and the qualified products are transported to the next inspection station by the handling mechanism 100.

[0049] Reference Figure 8 and Figure 9 The material removal mechanism 400 includes a fourth mounting frame 401 installed on the top of the workbench 1 and located on one side of the feed plate 4. A waste support rod 402 is fixedly installed on the fourth mounting frame 401. A first mounting plate 403 and a second mounting plate 404 are fixedly installed at the bottom of the fourth mounting frame 401. The first mounting plate 403 is located above the feed plate 4, and the second mounting plate 404 is located at the bottom of the feed plate 4. A clamping ring 406 is fixed on the first mounting plate 403 and below the waste support rod 402. A plurality of clamping rods 4 are slidably arranged inward on the clamping ring 406. 08. A third spring 409 is sleeved on the outside of the clamping rod 408. The two ends of the third spring 409 abut against the clamping rod 408 and the clamping ring 406 respectively. Several clamping rods 408 are close to each other and have a guide slope 4081 at one end. The guide slope 4081 is inclined from bottom to top and inward. A lifting cylinder 405 is installed at the bottom of the second mounting plate 404 and below the waste support rod 402. The output end of the lifting cylinder 405 is fixedly connected to a top block 407. The outer periphery of the top block 407 is provided with a support step 4071 for supporting the inner ring of the thin-walled bearing.

[0050] When a thin-walled bearing, determined to be defective, moves along the feed plate 4 to the station of the removal mechanism 400, the lifting cylinder 405 drives the top block 407 to rise upward through the opening on the feed plate 4. The support step 4071 on the outer periphery of the top block 407 lifts the inner ring of the thin-walled bearing, causing the thin-walled bearing to move upward along the scrap support rod 402. During the upward movement, the outer periphery of the thin-walled bearing slides along the guide slope 4081 of each clamping rod 408, simultaneously pushing each clamping rod 408 outward and compressing the third spring 409. After the thin-walled bearing passes the clamping ring 406, each clamping rod 408 resets and retracts under the elastic force of the third spring 409, thereby limiting and holding the thin-walled bearing on the scrap support rod 402 above the clamping ring 406. This achieves automatic rejection and temporary collection of defective thin-walled bearings, preventing them from continuing to enter the next inspection station, and facilitating subsequent unified removal and processing.

[0051] Reference Figure 10 and Figure 11 The outer ring rotation accuracy detection mechanism 500 includes a fifth mounting bracket 501 fixed to the top of the worktable 1 and located at the end of the outer diameter detection mechanism 300 away from the inner diameter detection mechanism 200. A fifth cylinder 502 and a third motor 505 are mounted on the top of the fifth mounting bracket 501. The output end of the fifth cylinder 502 is connected to a fifth displacement plate 503, which is slidably mounted on the fifth mounting bracket 501. An outer ring support plate 504 is fixed to the bottom of the fifth displacement plate 503. A first transmission cylinder 506 is fixedly connected to the output end of the third motor 505, and the first transmission cylinder 506 is rotatably mounted on the fifth mounting bracket 501. A first connecting rod 507 is slidably connected to the inner side of the transmission cylinder 506. A first transmission rod 508 is fixed on both sides of the top of the first connecting rod 507. A plurality of first transmission grooves 5061 adapted to the first transmission rods 508 are opened on the outer periphery of the first transmission cylinder 506. The first transmission rods 508 slide axially along the corresponding first transmission grooves 5061, and the first transmission grooves 5061 circumferentially limit the first transmission rods 508. An outer ring rotation drive block 510 is fixed at the bottom of the first connecting rod 507. A sixth cylinder 509 is also installed on the fifth mounting bracket 501. The output end of the sixth cylinder 509 is fixedly connected to the first connecting rod 507. An inner ring support column 511 is fixedly installed on the fifth mounting bracket 501 and below the outer ring support plate 504 to support the inner ring of the thin-walled bearing and limit its movement. An outer ring rotation detection bracket 513 is provided on one side of the inner ring support column 511 and is rotatably mounted on the fifth mounting bracket 501. A third displacement sensor 514 is installed on the fifth mounting bracket 501 and on one side of the inner ring support column 511. One end of the outer ring rotation detection bracket 513 extends into the inner side of the top of the inner ring support column 511, and the other end is connected to the input end of the third displacement sensor 514.

[0052] When testing the rotational accuracy of the outer ring of a thin-walled bearing, the thin-walled bearing is first placed on the inner ring support column 511, which supports and limits the inner ring of the thin-walled bearing. The fifth cylinder 502 drives the fifth displacement plate 503 to move the outer ring support plate 504 downward along the fifth mounting bracket 501, so that the outer ring support plate 504 presses against the upper end face of the outer ring of the thin-walled bearing. The sixth cylinder 509 drives the first connecting rod 507 to move axially downward along the first transmission cylinder 506, so that the outer ring rotation drive block 510 fixed at the bottom of the first connecting rod 507 presses against the outer ring of the thin-walled bearing. During this process, the first transmission rod 508 always slides axially within the first transmission groove 5061 and is limited circumferentially by it. Therefore, the third motor 505 passes through the first transmission groove 5061. A transmission cylinder 506 and a first transmission rod 508 drive the first connecting rod 507 and the outer ring rotation drive block 510 to rotate synchronously, thereby driving the outer ring of the thin-walled bearing to rotate. At this time, the inner ring of the thin-walled bearing is kept stationary by the inner ring support column 511. One end of the outer ring rotation detection bracket 513 extends into the inner side of the top of the inner ring support column 511 and abuts against the corresponding part of the rotating thin-walled bearing. If there is axial runout during the rotation of the outer ring, the runout is transmitted to the other end of the outer ring rotation detection bracket 513 through its swing, causing the input end of the third displacement sensor 514 to generate a corresponding displacement. The third displacement sensor 514 collects the displacement in real time, thereby obtaining the rotation accuracy of the outer ring of the thin-walled bearing, i.e., the axial runout value.

[0053] Reference Figure 12 and Figure 13The overall structure of the inner ring rotation accuracy detection mechanism 600 is similar to that of the outer ring rotation accuracy detection mechanism 500. It includes a sixth mounting frame 601 fixed to the top of the worktable 1 and located at the end of the outer ring rotation accuracy detection mechanism 500 furthest from the material removal mechanism 400. A seventh cylinder 602 and a fourth motor 605 are mounted on the top of the sixth mounting frame 601. The output end of the seventh cylinder 602 is connected to a sixth displacement plate 603, which is slidably mounted on the sixth mounting frame 601. Inner and outer ring support plates 604 are fixed to the bottom of the sixth displacement plate 603, and the inner and outer ring support plates 604 are provided with several support blocks 6041 for supporting thin-walled bearings. The output end of the fourth motor 605 is fixedly connected to a second transmission cylinder. 606. The second transmission cylinder 606 is rotatably mounted on the sixth mounting bracket 601. The second transmission cylinder 606 is slidably connected to the inner side of the second transmission cylinder 607. The second transmission rods 608 are fixed on both sides of the top of the second transmission rod 607. The outer periphery of the second transmission cylinder 606 is provided with a plurality of second transmission grooves 6061 that are adapted to the second transmission rods 608. The second transmission rods 608 slide axially along the corresponding second transmission grooves 6061, and the second transmission grooves 6061 circumferentially limit the second transmission rods 608. The bottom of the second connecting rod 607 is fixed with an inner ring rotation drive block 609. The sixth mounting bracket 601 is also equipped with an eighth cylinder 610, and the output end of the eighth cylinder 610 is fixedly connected to the second connecting rod 607. An outer ring support column 611 is fixedly installed on the sixth mounting bracket 601 and below the inner and outer ring support plates 604. It is used to support the outer ring of the thin-walled bearing and limit its movement. The inner side of the top of the outer ring support column 611 is provided with a relief groove 6111 for accommodating the support block 6041 and a detection cavity 6112 for testing. An inner ring rotating detection bracket 613 is provided on one side of the outer ring support column 611. The inner ring rotating detection bracket 613 is rotatably installed on the sixth mounting bracket 601. A fourth displacement sensor 614 is installed on the sixth mounting bracket 601 and on one side of the outer ring support column 611. One end of the inner ring rotating detection bracket 613 extends into the inside of the detection cavity 6112, and the other end is connected to the input end of the fourth displacement sensor 614.

[0054] When testing the rotational accuracy of the inner ring of a thin-walled bearing, the thin-walled bearing is first supported by the support block 6041 on the inner and outer ring support plates 604. The seventh cylinder 602 drives the sixth displacement plate 603 to move the inner and outer ring support plates 604 downward along the sixth mounting bracket 601, so that the thin-walled bearing falls into the limiting range of the outer ring support column 611. The outer ring support column 611 supports and limits the outer ring of the thin-walled bearing. At the same time, the support block 6041 descends synchronously into the clearance groove 6111 at the top of the outer ring support column 611 to avoid interference between the support block 6041 and the outer ring support column 611. The eighth cylinder 610 drives the second connecting rod 607 to move axially downward along the second transmission cylinder 606, so that the inner ring rotation drive block 609 fixed at the bottom of the second connecting rod 607 presses on the inner ring of the thin-walled bearing. During this process, the second transmission rod 608 always slides axially in the second transmission groove 6061 and is limited circumferentially by it. The fourth motor 605 passes through the second transmission cylinder 606. 06. The second transmission rod 608 drives the second connecting rod 607 and the inner ring rotation drive block 609 to rotate synchronously, thereby driving the inner ring of the thin-walled bearing to rotate. At this time, the outer ring of the thin-walled bearing is kept stationary by the outer ring support column 611. One end of the inner ring rotation detection bracket 613 extending into the detection cavity 6112 keeps in contact with the rotating inner ring of the thin-walled bearing. If there is radial runout during the rotation of the inner ring, the runout is transmitted to the other end of the inner ring rotation detection bracket 613 through its swing, causing the input end of the fourth displacement sensor 614 to generate a corresponding displacement. The fourth displacement sensor 614 collects the displacement in real time, thereby obtaining the rotation accuracy of the inner ring of the thin-walled bearing, i.e., the radial runout value. After the outer ring rotation accuracy detection mechanism 500 and the inner ring rotation accuracy detection mechanism 600 complete the detection, the unqualified thin-walled bearings are rejected by the corresponding material removal mechanism 400, and the qualified products are transported by the handling mechanism 100 and discharged by the unloading conveying mechanism 2.

[0055] Reference Figure 14 and Figure 15The inner diameter measuring mechanism 200, outer diameter measuring mechanism 300, outer ring rotation accuracy measuring mechanism 500, and inner ring rotation accuracy measuring mechanism 600 are all equipped with calibration ports 701. The bottom of the calibration port 701 is aligned with the top of the feed plate 4 to ensure that the component fed through the calibration port 701 is at the same measuring height as the thin-walled bearing being normally measured. A seventh mounting bracket 702 is fixed on the top of the worktable 1, on the side of the calibration port 701 away from the feed plate 4. The calibration and measuring mechanism 700 includes a ninth cylinder 703 mounted on the seventh mounting bracket 702 and located on the side corresponding to the calibration port 701. The output end of the ninth cylinder 703 is connected to a seventh displacement plate 704, which is slidably mounted on the seventh mounting bracket 702. A tenth cylinder 705 is mounted on the top of the seventh displacement plate 704, and an eighth displacement plate 706 is fixedly connected to the output end of the tenth cylinder 705. Plate 706 is slidably mounted on the seventh displacement plate 704; several docking plates 707 are fixed on the side of the eighth displacement plate 706 near the calibration port 701, and a storage plate 709 is slidably provided on the top of the docking plate 707. A storage groove 710 is opened on the inner side of the storage plate 709, and the storage groove 710 is used to store standard parts or error-proof parts; an eleventh cylinder 708 with the same number as the docking plate 707 is installed on the side of the eighth displacement plate 706 away from the docking plate 707, and the output end of the eleventh cylinder 708 is fixedly connected to the corresponding storage plate 709.

[0056] When calibration or error-proofing verification is required for a certain testing institution, the ninth cylinder 703 drives the seventh displacement plate 704 to move along the seventh mounting bracket 702, causing the eighth displacement plate 706, docking plate 707, and storage plate 709 to move as a whole to a position opposite to the corresponding calibration port 701; the tenth cylinder 705 drives the eighth displacement plate 706 to move downward along the seventh displacement plate 704, so that the docking plate 707 and storage plate 709 extend through the calibration port 701 to the testing height aligned with the top of the feed plate 4; the eleventh cylinder 708 drives the storage plate 709 to slide along the docking plate 707, pushing the standard parts or error-proofing parts in the storage slot 710 to the corresponding testing. The testing station of the mechanism is used by the testing mechanism to test standard parts or error-proof parts according to the aforementioned testing method, and compare the test results with the known standard values ​​of the standard parts to determine whether the current testing accuracy of the testing mechanism has deviated, or to verify its ability to identify abnormal or erroneous workpieces; after the calibration or verification is completed, the eleventh cylinder 708 drives the storage plate 709 to reset and retrieve the standard parts or error-proof parts, and the tenth cylinder 705 and the ninth cylinder 703 drive the eighth displacement plate 706 and the seventh displacement plate 704 to reset in sequence, so that the calibration testing mechanism 700 returns to the standby position, and the corresponding testing mechanism then resumes normal testing of thin-walled bearings.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing device for thin-walled bearings, characterized in that, The system includes a workbench (1), on which a feeding conveyor (2) and a feeding conveyor (3) are respectively provided on both sides. The feeding conveyor (3) is used to feed the thin-walled bearing, and the feeding conveyor (2) is used to feed the thin-walled bearing. A feed plate (4) is provided on the top of the workbench (1) between one end of the feeding conveyor (3) and the feeding conveyor (2). A conveying mechanism (100) is provided on the workbench (1) on one side of the feed plate (4). Along the length direction of the feed plate (4), an inner diameter detection mechanism (200) for detecting the inner diameter of the thin-walled bearing and an outer diameter detection mechanism for detecting the outer diameter of the thin-walled bearing are provided sequentially. (300) An outer ring rotation accuracy detection mechanism (500) for detecting the rotation accuracy of the outer diameter of the thin-walled bearing and an inner ring rotation accuracy detection mechanism (600) for detecting the rotation accuracy of the inner diameter of the thin-walled bearing are provided. A material removal mechanism (400) for removing waste material is provided between the outer diameter detection mechanism (300) and the outer ring rotation accuracy detection mechanism (500), and between the inner ring rotation accuracy detection mechanism (600) and the inner diameter detection mechanism (200). A calibration detection mechanism (700) is provided on one side of the inner diameter detection mechanism (200), the outer diameter detection mechanism (300), the outer ring rotation accuracy detection mechanism (500), and the inner ring rotation accuracy detection mechanism (600). The calibration detection mechanism (700) is used to store standard parts or error-proof parts.

2. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The conveying mechanism (100) includes a first mounting frame (101) fixedly installed on the top of the workbench (1) and located on one side of the feed plate (4). A first cylinder (103) is installed on one side of the first mounting frame (101). The output end of the first cylinder (103) is connected to a first displacement plate (102). The first displacement plate (102) is slidably installed on the first mounting frame (101). A second cylinder (104) is installed on the first displacement plate (102). The output end of the second cylinder (104) is connected to a second displacement plate (105). The second displacement plate (105) is slidably installed on the first displacement plate (102). A conveying plate (106) is fixed on the side of the second displacement plate (105) near the feed plate (4). A plurality of conveying grooves (107) are provided on the conveying plate (106).

3. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The inner diameter detection mechanism (200) includes a second mounting frame (201) fixedly installed on the top of the workbench (1) near one end of the feeding conveying mechanism (3). A first motor (202) is mounted on the top of the second mounting frame (201). A first screw (207) is fixedly connected to the output end of the first motor (202). A third displacement plate (203) is threadedly connected to the outer side of the first screw (207). The third displacement plate (203) is slidably connected to the second mounting frame (201). A first detection frame (204) is fixed on the third displacement plate (203). A first deformation plate (205) is provided on the inner side of the first detection frame (204). A third cylinder (209) and a first displacement sensor (210) are installed on the side. The output ends of the third cylinder (209) and the first displacement sensor (210) are both connected to the first deformation plate (205). A first spring (206) is provided on one side of the first detection frame (204). The two ends of the first spring (206) are respectively connected to the first deformation plate (205) and the first detection frame (204). Inner ring detection blocks (208) are provided on both sides below the first detection frame (204). One inner ring detection block (208) is fixed to the bottom of the first detection frame (204), and the other inner ring detection block (208) is fixed to the bottom of the first deformation plate (205).

4. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The outer diameter detection mechanism (300) includes a third mounting bracket (301) fixedly mounted on the top of the workbench (1) and located at the end of the inner diameter detection mechanism (200) closer to and away from the feeding conveying mechanism (3). A second motor (302) is mounted on the top of the third mounting bracket (301). A second screw (303) is fixedly connected to the output end of the second motor (302). A fourth displacement plate (304) is threadedly connected to the outer side of the second screw (303). The fourth displacement plate (304) is slidably connected to the third mounting bracket (301). A second detection bracket (305) is fixed on the fourth displacement plate (304). A second deformation plate (306) is provided on the inner side of the second detection bracket (305). A fourth cylinder (308) and a second displacement sensor (309) are respectively installed on both sides of the deformation plate (306). The output ends of the fourth cylinder (308) and the second displacement sensor (309) are both connected to the second deformation plate (306). A second spring (307) is provided on one side of the second detection frame (305). The two ends of the second spring (307) are respectively connected to the second deformation plate (306) and the second detection frame (305). Outer diameter detection blocks (310) are provided on both sides below the second detection frame (305). One of the outer diameter detection blocks (310) is fixed to the bottom of the second detection frame (305), and the other outer diameter detection block (310) is fixed to the bottom of the second deformation plate (306).

5. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The material removal mechanism (400) includes a fourth mounting frame (401) installed on the top of the workbench (1) and located on one side of the feed plate (4). A waste support rod (402) is fixedly installed on the fourth mounting frame (401). A first mounting plate (403) and a second mounting plate (404) are fixedly installed at the bottom of the fourth mounting frame (401). The first mounting plate (403) is located above the feed plate (4), and the second mounting plate (404) is located at the bottom of the feed plate (4). A clamping ring (406) is fixed on the first mounting plate (403) and located below the waste support rod (402). A plurality of clamping rods are slidably provided on the inner side of the clamping ring (406). (408), a third spring (409) is sleeved on the outside of the clamping rod (408). The two ends of the third spring (409) abut against the clamping rod (408) and the clamping ring (406) respectively. A plurality of clamping rods (408) are provided with a guide slope (4081) at one end close to each other. The guide slope (4081) is inclined from bottom to top and inward. A lifting cylinder (405) is installed at the bottom of the second mounting plate (404) and below the waste support rod (402). A top block (407) is fixedly connected to the output end of the lifting cylinder (405). A support step (4071) for supporting the inner ring of the thin-walled bearing is provided on the outer periphery of the top block (407).

6. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The outer ring rotation accuracy detection mechanism (500) includes a fifth mounting bracket (501) fixed on the top of the worktable (1) and located at the end of the outer diameter detection mechanism (300) away from the inner diameter detection mechanism (200). A fifth cylinder (502) and a third motor (505) are mounted on the top of the fifth mounting bracket (501). The output end of the fifth cylinder (502) is connected to a fifth displacement plate (503). The fifth displacement plate (503) is slidably mounted on the fifth mounting bracket (501). An outer ring support plate (504) is fixed to the bottom of the fifth displacement plate (503). A first transmission cylinder (506) is fixedly connected to the output end of the third motor (505). The first transmission cylinder (506) is rotatably mounted on the fifth mounting bracket (501). A first connecting rod is slidably connected to the inner side of the first transmission cylinder (506). (507), an outer ring rotation drive block (510) is fixed at the bottom of the first connecting rod (507). An inner ring support column (511) is fixedly installed on the fifth mounting bracket (501) and below the outer ring support plate (504). An outer ring rotation detection bracket (513) is provided on one side of the inner ring support column (511). The outer ring rotation detection bracket (513) is rotatably installed on the fifth mounting bracket (501). A third displacement sensor (514) is installed on the fifth mounting bracket (501) and on one side of the inner ring support column (511). One end of the outer ring rotation detection bracket (513) extends into the inner side of the top of the inner ring support column (511), and the other end is connected to the input end of the third displacement sensor (514). The inner ring support column (511) is used to support the inner ring of the thin-walled bearing and limit its movement.

7. The testing equipment for thin-walled bearings according to claim 6, characterized in that, The first connecting rod (507) has a first transmission rod (508) fixed on both sides of its top. The first transmission cylinder (506) has a plurality of first transmission grooves (5061) on its outer periphery that are adapted to the first transmission rod (508). The first transmission rod (508) slides axially on the inner side of the corresponding first transmission groove (5061). The first transmission groove (5061) is used to circumferentially limit the first transmission rod (508). The fifth mounting bracket (501) is also equipped with a sixth cylinder (509). The output end of the sixth cylinder (509) is fixedly connected to the first connecting rod (507).

8. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The inner ring rotation accuracy detection mechanism (600) includes a sixth mounting frame (601) fixed on the top of the workbench (1) and located at the end of the outer ring rotation accuracy detection mechanism (500) away from the material removal mechanism (400). A seventh cylinder (602) and a fourth motor (605) are mounted on the top of the sixth mounting frame (601). The output end of the seventh cylinder (602) is connected to a sixth displacement plate (603). The sixth displacement plate (603) is slidably mounted on the sixth mounting frame (601). Inner and outer ring support plates (604) are fixed at the bottom of the sixth displacement plate (603). A second transmission cylinder (606) is fixedly connected to the output end of the fourth motor (605). The second transmission cylinder (606) is rotatably mounted on the sixth mounting frame (601). A second connecting rod (607) is slidably connected to the inner side of the second transmission cylinder (606). An inner ring rotation drive block (609) is fixed at the bottom of the second connecting rod (607). The sixth mounting frame (601) and located at the end of the outer ring rotation accuracy detection mechanism (500) away from the material removal mechanism (400) are mounted on the sixth mounting frame (601). An outer ring support column (611) is fixedly installed below the inner and outer ring support plates (604). An inner ring rotation detection bracket (613) is provided on one side of the outer ring support column (611). The inner ring rotation detection bracket (613) is rotatably mounted on the sixth mounting bracket (601). A fourth displacement sensor (614) is installed on the sixth mounting bracket (601) and located on one side of the outer ring support column (611). Several support blocks for supporting the thin-walled bearing are provided on the inner and outer ring support plates (604). 6041), the outer ring support column (611) has an inner clearance groove (6111) for accommodating the support block (6041) on the top inner side, the outer ring support column (611) has a detection cavity (6112) on the top inner side, one end of the inner ring rotating detection bracket (613) extends into the inner side of the detection cavity (6112), and the other end is connected to the input end of the fourth displacement sensor (614). The outer ring support column (611) is used to support the outer ring of the thin-walled bearing and limit its movement.

9. The testing equipment for thin-walled bearings according to claim 8, characterized in that, The second connecting rod (607) has a second transmission rod (608) fixed on both sides of its top. The second transmission cylinder (606) has a plurality of second transmission grooves (6061) on its outer periphery that are adapted to the second transmission rod (608). The second transmission rod (608) slides axially inside the corresponding second transmission groove (6061). The second transmission groove (6061) is used to circumferentially limit the second transmission rod (608). The sixth mounting bracket (601) is also equipped with an eighth cylinder (610). The output end of the eighth cylinder (610) is fixedly connected to the second connecting rod (607).

10. The testing equipment for thin-walled bearings according to claim 1, characterized in that, The inner diameter detection mechanism (200), the outer diameter detection mechanism (300), the outer ring rotation accuracy detection mechanism (500), and the inner ring rotation accuracy detection mechanism (600) are all provided with calibration ports (701). The bottom of the calibration port (701) is aligned with the top of the feed plate (4). A seventh mounting bracket (702) is fixed on the top of the worktable (1) on the side of the calibration port (701) away from the feed plate (4). The calibration detection mechanism (700) includes a ninth cylinder (703) mounted on the seventh mounting bracket (702) and located on the side of the corresponding calibration port (701). The output end of the ninth cylinder (703) is connected to a seventh displacement plate (704). The seventh displacement plate (704) is slidably mounted on the seventh mounting bracket (702). 4) A tenth cylinder (705) is installed on the top. The output end of the tenth cylinder (705) is fixedly connected to an eighth displacement plate (706). The eighth displacement plate (706) is slidably installed on the seventh displacement plate (704). Several docking plates (707) are fixed on the side of the eighth displacement plate (706) near the calibration port (701). A storage plate (709) is slidably provided on the top of the docking plate (707). A storage slot (710) is opened on the inner side of the storage plate (709). The storage slot (710) is used to store standard parts or error-proof parts. An eleventh cylinder (708) with the same number as the docking plate (707) is installed on the side of the eighth displacement plate (706) away from the docking plate (707). The output end of the eleventh cylinder (708) is fixedly connected to the corresponding storage plate (709).

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