Ball cage sorting and detecting mechanism

By designing a ball cage sorting and inspection mechanism, and utilizing the cooperation of floating components and inspection pins, rapid and accurate inspection and automatic sorting of inner ball cages are achieved, solving the problems of cumbersome inspection process and insufficient accuracy in existing technologies, and improving inspection efficiency and accuracy.

CN224072692UActive Publication Date: 2026-04-03JIAXING JUQI MEASUREMENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-12
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing internal ball cage testing mechanisms have a cumbersome testing process, take a long time to test a single ball cage, are difficult to efficiently test multiple contact surfaces, and have insufficient testing accuracy.

Method used

A ball cage sorting and inspection mechanism was designed, including a base, a base plate, a floating component, and an inspection pin. The inspection pin is inserted into the inner cavity of the ball cage by a robotic arm. Combined with the floating adjustment of the buffer spring and the floating component, automatic inspection and sorting are achieved, reducing inspection errors.

Benefits of technology

It enables rapid and accurate detection of the internal dimensions of the ball cage, automatically sorts out defective products, improves detection efficiency and accuracy, and reduces detection errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ball cage detection, in particular to a ball cage sorting detection mechanism, which comprises a base, a substrate, a floating assembly and a detection pin, the base is provided with a guide post and a detection probe, the substrate is arranged on the guide post in a sliding manner, and the lower end of the substrate is provided with a first buffer spring; the first buffer springs are arranged on the guide columns in a sleeving mode and abut against the upper end of the base, and the floating assembly comprises a circular mounting plate, a lower floating plate, an upper floating plate, an upper mounting plate and a translation piece which are arranged from bottom to top. The translation pieces are arranged between the lower floating plate and the upper floating plate and between the upper floating plate and the upper mounting plate, a bayonet socket is arranged on the upper mounting plate, and the detection pin is inserted into the bayonet socket. According to the utility model, through an automatic detection and sorting mechanism, efficient detection of the internal size of the ball cage is realized; meanwhile, the position deviation is compensated through floating design, the detection error is reduced, and the detection precision and efficiency are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of ball cage detection technology, and specifically to a ball cage sorting and detection mechanism. Background Technology

[0002] The inner CV joint is an important component in the automotive transmission system. Its function is to transmit engine power from the transmission to the two front wheels, driving the car at high speed. The three-fork type inner CV joint currently used on the market has three ball pin assemblies set inside the inner CV joint housing. It can slide inward and outward on three tracks inside the inner CV joint housing to adapt to the length changes of the drive shaft during vehicle movement. The three-fork type inner CV joint has a simple structure, low wear, and axial extension and retraction, and is widely used in automobiles.

[0003] During the production process of the inner ball cage, the internal track dimensions need to be inspected to meet the usage requirements. Currently, the inner ball cage inspection mechanism usually adopts the measurement method to inspect the ball track. However, since the internal structure of the ball cage is not a single plane, multiple contact surfaces need to be inspected during the inspection process, which is cumbersome and the inspection time for a single ball cage is long. Utility Model Content

[0004] This invention provides a ball cage sorting and detection mechanism to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A ball cage sorting and detection mechanism includes: a base, a base plate, a floating assembly, and a detection pin. The base is provided with a guide post and a detection probe. The base plate is slidably disposed on the guide post and a first buffer spring is disposed at its lower end. The first buffer spring is sleeved on the guide post and abuts against the upper end of the base. The floating assembly includes a circular mounting plate, a lower floating plate, an upper floating plate, an upper mounting plate, and a translation component disposed from bottom to top. The translation component is disposed between the lower floating plate and the upper floating plate, and between the upper floating plate and the upper mounting plate. A plug-in seat is disposed on the upper mounting plate, and the detection pin is inserted into the plug-in seat.

[0006] In a further improvement, a through hole is provided in the middle of the circular mounting plate, a floating column is slidably disposed in the through hole, the floating column is fixedly disposed with the lower floating plate, and an elastic guide is provided at the lower end of the lower floating plate, the elastic guide is fixedly disposed with the upper surface of the circular mounting plate.

[0007] In a further improvement, floating grooves are provided at the upper end of the lower floating plate, at both ends of the upper floating plate, and at the lower end of the upper mounting plate, and the translation component is slidably disposed within the floating grooves.

[0008] As a further improvement, limiting components are provided on the outer sides of the lower floating plate, the upper floating plate, the upper floating plate, and the upper mounting plate.

[0009] In a further improvement, the translation component includes a first translation rod, a second translation rod, and a transition plate disposed between the first translation rod and the second translation rod. The first translation rod and the second translation rod are each provided with a guide groove on the side near the transition plate, and both ends of the transition plate are embedded in the guide groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In actual use, the robot arm moves the ball cage to be tested above the detection pin and drives it to move downward. If the internal dimensions of the ball cage are compliant, the detection pin slides into the inner cavity of the ball cage to prevent the substrate from moving down to the detection probe and triggering an alarm. If the internal dimensions of the ball cage to be tested do not meet the standard, the upper end of the detection pin and the lower end of the ball cage will physically interfere. During the downward movement of the ball cage, the substrate will be moved downward under force until the detection probe triggers an alarm. Then, the robot arm moves the ball cage to be tested to the non-compliant area, and the substrate will reset under the action of the first buffer spring, thus realizing the automatic detection and sorting of the internal dimensions of the ball cage.

[0012] 2. The translation component set between the lower floating plate, the upper floating plate and the upper mounting plate of this utility model can achieve a certain degree of left and right floating adjustment among the three. Since the upper end of the detection pin is small, when the ball cage to be tested is not fully aligned with the detection pin, the detection pin can be adjusted within a certain range, thereby effectively compensating for position deviation, reducing detection error and further improving the detection accuracy of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial exploded view of the present invention;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This utility model Figure 3 Sectional view of AA;

[0017] Figure 5 This is a schematic diagram of the translation component of this utility model.

[0018] In the diagram, 1 is the base; 11 is the guide post; 12 is the detection probe; 2 is the base plate; 21 is the first buffer spring; 3 is the floating assembly: 31 is the circular mounting plate; 311 is the through hole; 312 is the floating post; 32 is the lower floating plate; 321 is the elastic guide; 33 is the upper floating plate; 34 is the upper mounting plate; 341 is the plug-in socket; 35 is the translation component: 351 is the first translation rod; 352 is the second translation rod; 353 is the transition plate; 51 is the floating groove; 52 is the limiting component; 53 is the guide groove. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0022] Example 1

[0023] A ball cage sorting and inspection mechanism includes: a base 1, a base plate 2, a floating assembly 3, and an inspection pin 4. The base 1 is provided with a guide post 11 and an inspection probe 12. The base plate 2 is slidably disposed on the guide post 11 and a first buffer spring 21 is disposed at its lower end. The first buffer spring 21 is sleeved on the guide post 11 and abuts against the upper end of the base 1. The floating assembly 3 includes a circular mounting plate 31, a lower floating plate 32, an upper floating plate 33, an upper mounting plate 34, and a translation member 35 disposed from bottom to top. The translation member 35 is disposed between the lower floating plate 32 and the upper floating plate 33, and between the upper floating plate 33 and the upper mounting plate 34. The upper mounting plate 34 is provided with a plug-in seat 341, and the inspection pin 4 is inserted into the plug-in seat 341.

[0024] like Figures 1-5As shown, in actual use, the robot moves the ball cage to be tested above the detection pin 4 and drives it to move downward. If the internal dimensions of the ball cage are compliant, the detection pin 4 slides into the inner cavity of the ball cage, preventing the base plate 2 from moving downward to the detection probe 12 and triggering an alarm. If the internal dimensions of the ball cage to be tested do not meet the standard, the upper end of the detection pin 4 and the lower end of the ball cage physically interfere. During the downward movement of the ball cage, the base plate 2 moves downward under force until the detection probe 12 triggers an alarm. Then, the robot moves the ball cage to be tested to the non-compliant area, and the base plate 2 resets under the action of the first buffer spring 21, realizing the automatic detection and sorting of the internal dimensions of the ball cage.

[0025] The translation component 35 provided between the lower floating plate 32, the upper floating plate 33 and the upper mounting plate 34 allows for a certain degree of left and right floating adjustment among the three. Furthermore, due to the small size of the upper end of the detection pin 4, when the ball cage to be tested is not fully aligned with the detection pin 4, the detection pin 4 can be adjusted within a certain range, thereby effectively compensating for positional deviations, reducing detection errors, and further improving the detection accuracy of the equipment.

[0026] Alternatively, since the elastic potential energy of the first buffer spring 21 gradually increases as it is compressed, by setting the lower pressure threshold of the robot arm, when the lower pressure of the robot arm reaches a certain threshold, the ball cage to be inspected can be judged as a defective product. Through the rule of dual judgment, the detection accuracy of the equipment is improved.

[0027] Alternatively, the detection pin 4 is installed in the connector 341 by plugging in. Users can quickly replace the corresponding detection pin 4 according to actual testing needs. The structure is simple and provides good applicability of the equipment.

[0028] As a further preferred embodiment, the circular mounting plate 31 is provided with a through hole 311 in the middle, and a floating column 312 is slidably disposed in the through hole 311. The floating column 312 is fixedly disposed with the lower floating plate 32, and an elastic guide 321 is provided at the lower end of the lower floating plate 32. The elastic guide 321 is fixedly disposed with the upper surface of the circular mounting plate 31.

[0029] Specifically, the sliding function of the floating column 312 allows the lower floating plate 32 to be finely adjusted in the vertical direction, thereby further improving the adaptability and detection accuracy of the device. The elastic guide 321 (such as a spring or elastic rubber) not only provides vertical buffer for the lower floating plate 32, but also ensures the stability of its movement and avoids detection errors caused by external impact.

[0030] As a further preferred embodiment, the upper end of the lower floating plate 32, the upper and lower ends of the upper floating plate 33, and the lower end of the upper mounting plate 34 are all provided with floating grooves 51, and the translation member 35 is slidably disposed in the floating grooves 51.

[0031] Specifically, the floating groove 51 provides a stable sliding path for the translation component 35, ensuring that each floating plate can be finely adjusted according to the shape and size of the ball cage during the testing process, thereby improving the accuracy and adaptability of the testing. At the same time, the floating design also helps to mitigate the impact and vibration generated during the testing process, protect the key components of the testing mechanism, and extend the service life of the equipment.

[0032] As a further preferred embodiment, limiting members 52 are provided on the outer sides of the lower floating plate 32, the upper floating plate 33, and the upper mounting plate 34.

[0033] Specifically, the limiter 52 effectively limits the maximum displacement of the floating component 3 during the detection process, preventing the detection accuracy from decreasing or the equipment from being damaged due to excessive floating.

[0034] As a further preferred embodiment, the translation member 35 includes a first translation rod 351, a second translation rod 352, and a transition plate 353 disposed between the first translation rod 351 and the second translation rod 352. The first translation rod 351 and the second translation rod 352 are each provided with a guide groove 53 on the side near the transition plate 353, and both ends of the transition plate 353 are embedded in the guide groove 53.

[0035] Specifically, the cooperation between the guide groove 53 and the transition plate 353 ensures that the translation component 35 remains stable during movement, avoiding detection errors caused by shaking or offset.

[0036] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A ball cage sorting and inspection mechanism, characterized in that, include: The system comprises a base, a substrate, a floating assembly, and a detection pin. The base is provided with a guide post and a detection probe. The substrate is slidably mounted on the guide post and has a first buffer spring at its lower end. The first buffer spring is sleeved on the guide post and abuts against the upper end of the base. The floating assembly includes a circular mounting plate, a lower floating plate, an upper floating plate, an upper mounting plate, and a translation component arranged from bottom to top. The translation component is provided between the lower floating plate and the upper floating plate, and between the upper floating plate and the upper mounting plate. The upper mounting plate is provided with a connector, and the detection pin is inserted into the connector.

2. The ball cage sorting and detection mechanism according to claim 1, characterized in that, The circular mounting plate has a through hole in the middle, and a floating column is slidably disposed in the through hole. The floating column is fixedly disposed with the lower floating plate. An elastic guide is disposed at the lower end of the lower floating plate, and the elastic guide is fixedly disposed with the upper surface of the circular mounting plate.

3. A ball cage sorting and detection mechanism according to claim 1 or 2, characterized in that, The lower floating plate has floating grooves at its upper end, the upper and lower ends of the upper floating plate, and the lower end of the upper mounting plate. The translation component is slidably disposed in the floating grooves.

4. The ball cage sorting and detection mechanism according to claim 1, characterized in that, Limiting components are provided on the outer sides of the lower floating plate, the upper floating plate, the upper floating plate, and the upper mounting plate.

5. The ball cage sorting and detection mechanism according to claim 1, characterized in that, The translation component includes a first translation rod, a second translation rod, and a transition plate disposed between the first translation rod and the second translation rod. The first translation rod and the second translation rod are each provided with a guide groove on the side near the transition plate, and both ends of the transition plate are embedded in the guide groove.