Cross shaft oil seal assembly detection mechanism

By using a coordinated conveyor belt and multiple mechanisms, automated multi-angle inspection of cross shaft oil seals is achieved, solving the problem of cumbersome operation in existing technologies, improving inspection efficiency and accuracy, and reducing labor costs.

CN223841354UActive Publication Date: 2026-01-27HANGZHOU ZHENGQIANG UNIVERSAL JOINT
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520620632.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-01-27
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing cross-shaped oil seal testing devices are cumbersome to operate, requiring frequent disassembly and reinstallation, resulting in low testing efficiency.

Method used

The cross shaft is automated and multi-angled by using the coordinated operation of the input conveyor belt, output conveyor belt, positioning seat, gripper mechanism, lifting mechanism, rotating mechanism and moving mechanism.

Benefits of technology

Improve testing efficiency, reduce labor costs, enhance testing accuracy and optimize processes to achieve automation and high efficiency in cross-axis testing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223841354U_ABST
    Figure CN223841354U_ABST
Patent Text Reader

Abstract

According to the scheme, the universal joint pin oil seal assembling and detecting mechanism comprises a rack and a clamping and detecting mechanism installed on the rack, the clamping and detecting mechanism is arranged on one side of a positioning disc, and the universal joint pin oil seal assembling and detecting mechanism further comprises an input conveying belt; an output conveyor belt; the positioning seat is mounted on the rack, is arranged on one side of the clamping detection mechanism, and is used for positioning and placing the cross shaft, so that the clamping detection mechanism can detect the cross shaft conveniently; the clamping jaw mechanism is used for clamping and transferring the cross shaft; the lifting mechanism is connected with the clamping jaw mechanism and used for driving the clamping jaw mechanism to move up and down; the rotating mechanism is connected with the lifting mechanism and is used for driving the clamping jaw mechanism and the lifting mechanism to synchronously rotate in a stepping manner; and the moving mechanism is used for driving the rotating mechanism, the clamping jaw mechanism and the lifting mechanism to synchronously and horizontally move. According to the utility model, processing procedures can be obviously reduced, repeated dismounting of the cross shaft is avoided, detection can be completed at one time, and detection efficiency is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of oil seal testing technology, specifically to a cross-shaped oil seal assembly and testing mechanism. Background Technology

[0002] In mechanical transmission systems, the cross shaft is a critical component, and the correct installation of its oil seal is crucial. Existing cross shaft oil seal testing devices typically use fixtures to position the cross shaft, clamping its symmetrical ends with jigs at both ends. Force sensors or other detection methods are then used to determine whether the oil seal is properly installed based on parameters such as clamping force or length. In practice, after testing one end of the cross shaft, it must be removed from the fixture, reoriented, and reinstalled before testing the next end. The entire testing process is cumbersome.

[0003] Therefore, there is an urgent need for a cross-shaft oil seal assembly and detection mechanism that can significantly improve processing efficiency in order to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this application is to address the aforementioned problems in the prior art by providing a cross shaft oil seal assembly and testing mechanism. Through the coordinated operation of an input conveyor belt, an output conveyor belt, a positioning seat, a gripper mechanism, a lifting mechanism, a rotating mechanism, and a moving mechanism, the mechanism enables automated, multi-angle oil seal testing of the cross shaft.

[0005] To achieve the above-mentioned objectives, this application adopts the following technical solution: A cross shaft oil seal assembly and testing mechanism includes a frame and a clamping and testing mechanism mounted on the frame. The clamping and testing mechanism is located on one side of the positioning plate and is used to clamp and test the symmetrical ends of the cross shaft. It also includes:

[0006] Input conveyor belt, used to sequentially input undetected crosshairs;

[0007] The output conveyor belt is used to output the inspected cross shafts sequentially.

[0008] The positioning seat is mounted on the frame and located on one side of the clamping and testing mechanism. It is used to position the cross shaft so that the clamping and testing mechanism can test the cross shaft.

[0009] The gripper mechanism is used to clamp and transfer the cross shaft;

[0010] The lifting mechanism, connected to the gripper mechanism, is used to drive the gripper mechanism to move up and down.

[0011] The rotating mechanism, connected to the lifting mechanism, is used to drive the gripper mechanism and the lifting mechanism to rotate synchronously in steps, with each step rotating at an angle of 45°, in order to achieve the angle switching of the cross shaft;

[0012] The moving mechanism is used to drive the rotating mechanism, gripper mechanism and lifting mechanism to move horizontally synchronously, so as to realize the movement of the cross shaft between the input conveyor belt, the positioning seat and the output conveyor belt.

[0013] Furthermore, the positioning seat is provided with symmetrically arranged V-shaped grooves and rectangular grooves. The two V-shaped grooves and the two rectangular grooves form a cross-shaped positioning structure. The V-shaped grooves are used to position the two ends of the cross shaft that need to be inspected, and the rectangular grooves are used to place the two ends of the cross shaft that have been inspected or are to be inspected.

[0014] Furthermore, each V-groove is also equipped with two support rods arranged in a V-shape.

[0015] Furthermore, each support rod is made of tungsten steel.

[0016] Furthermore, the size of the rectangular groove is larger than the diameter of any one of the four ends of the cross shaft.

[0017] Furthermore, the positioning seat is hollow and contains a sensor to detect the presence or absence of the cross shaft.

[0018] Furthermore, the gripper mechanism is either an electric gripper or a pneumatic gripper.

[0019] Furthermore, the moving mechanism is a linear module or a rotary track.

[0020] Furthermore, the lifting mechanism is either a pneumatic cylinder or an electric cylinder.

[0021] Furthermore, the number of gripper mechanisms can be one or two.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. Improved inspection efficiency: Automated conveying, transfer and angle switching eliminate the need for frequent manual disassembly and reinstallation of the cross shaft, significantly shortening inspection time and increasing the number of inspections per unit time.

[0024] 2. Reduce labor costs: Reduce manual operation steps and decrease reliance on manual labor, thereby reducing labor costs.

[0025] 3. Improved testing accuracy: Automated processes reduce human error, ensure consistency and accuracy in the testing process, and improve the reliability of test results.

[0026] 4. Optimized operation process: The integrated testing mechanism design makes the cross shaft testing process smoother, which is convenient for enterprises to carry out production management and quality control. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this application;

[0028] Figure 2 This is an internal structural diagram of the positioning seat in this application;

[0029] Figure 3 This is a schematic diagram of the positioning seat of this application after the cross axis has been removed.

[0030] In the diagram, 1 is the frame; 2 is the clamping and detection mechanism; 3 is the input conveyor belt; 4 is the output conveyor belt; 5 is the positioning seat; 51 is the V-groove; 52 is the rectangular groove; 53 is the support rod; 6 is the gripper mechanism; 7 is the lifting mechanism; 8 is the rotating mechanism; 9 is the moving mechanism; and 10 is the cross shaft. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 application 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, the above terms should not be construed as limitations on this application.

[0033] The cross shaft 10 mentioned in this application is a cross-shaped shaft formed by four shafts, with no shafts on the lower two sides of the middle part.

[0034] like Figure 1-3 As shown, this embodiment uses a common cross-shaft oil seal assembly and testing mechanism as an example for detailed explanation.

[0035] I. Overall Structural Layout

[0036] Frame 1: Serving as the supporting frame for the entire testing mechanism, it is welded from high-strength steel to ensure the stability of the entire mechanism. Various functional components are rationally arranged on Frame 1.

[0037] Input conveyor belt 3: Installed on one side of the frame 1, driven by a motor and operating via belt transmission, it is a mature existing product, and its structure and principle will not be described in detail here. Its function is to sequentially transport the untested cross shafts 10 placed at the starting position to the testing area according to the set speed and interval.

[0038] Output conveyor belt 4: Located at the end of frame 1, it is also driven by a motor and is a mature existing product, so its structure and principle will not be described in detail here. Its function is to receive the cross shaft 10 after testing and transport it to the subsequent processing area.

[0039] Clamping and detection mechanism 2: In the existing technology, the clamping jaws are driven by a cylinder, and the pressure or length at both ends of the cross shaft 10 is detected by means of force sensor or distance sensor, so as to determine whether the oil seal is assembled in place. Since it is a mature technology, its structure and principle will not be described in detail here.

[0040] II. Positioning seat 5

[0041] The positioning seat 5 is fixedly installed on the frame 1 and is located on one side of the clamping and detection mechanism 2. The positioning seat 5 is designed with symmetrical V-shaped grooves 51 and rectangular grooves 52, which combine to form a cross-shaped positioning structure.

[0042] V-groove 51: When the cross shaft 10 is conveyed to the positioning seat 5, the two ends to be inspected will fall into the V-groove 51. Each V-groove 51 is provided with two support rods 53 arranged in a V-shape. The support rods 53 are made of tungsten steel, which has high hardness and wear resistance, can stably support the cross shaft 10, and is not easily deformed during long-term use, thus ensuring the accuracy of positioning.

[0043] Rectangular groove 52: Its size is designed to be larger than the diameter of any one of the four ends of the cross shaft 10. It is used to place the other two ends of the cross shaft 10 after it has been tested or to be tested, without touching the ends of the cross shaft 10. The positioning seat 5 has a hollow internal structure, in which a sensor (not shown) is installed. This sensor can detect in real time whether the cross shaft 10 is placed on the positioning seat 5, so as to control the start and stop of the entire testing process. This control method is existing technology and does not involve any improvement of computer methods. It is an application of mature technology and can also be judged manually based on the sensor signal.

[0044] III. Gripper Mechanism 6

[0045] In this embodiment, the gripper mechanism 6 is a pneumatic gripper, connected to an external air source via an air pipe (not shown). It is installed below the lifting mechanism 7. When a control signal is received, the gripper mechanism 6 can quickly and accurately clamp or release the cross shaft 10. Two gripper mechanisms 6 are provided; in actual operation, one can be used to place the cross shaft 10 onto the positioning seat 5, and the other can be used to reverse the direction of the cross shaft 10 and place it onto the output conveyor belt 4, thus improving work efficiency.

[0046] IV. Lifting Mechanism 7

[0047] The lifting mechanism 7 uses a cylinder as the driving element. The cylinder body is fixed on the rotating mechanism 8, and the piston rod is connected to the gripper mechanism 6. When it is necessary to grip or place the cross shaft 10, the cylinder pushes the piston rod up and down by intake or exhaust, thereby driving the gripper mechanism 6 to move up and down, realizing the transfer of the cross shaft 10 to different height positions.

[0048] V. Rotating Mechanism 8

[0049] The rotating mechanism 8 is connected to the lifting mechanism 7 and is driven by a motor (not shown) through a reducer (not shown). The rotating mechanism 8 can drive the lifting mechanism 7 and the gripper mechanism 6 to rotate synchronously in steps, with the angle of each step precisely set to 45°. Through such angle switching, the cross shaft 10 can be detected by the clamping detection mechanism 2 at different angles, ensuring that all four ends of the cross shaft 10 can be fully detected.

[0050] VI. Mobile Mechanism 9

[0051] The moving mechanism 9 uses a linear module, and the slider of the linear module is fixedly connected to the rotating mechanism 8. The linear module drives the lead screw to rotate via a motor (not shown), which in turn drives the slider to move horizontally on the guide rail, thereby realizing the synchronous horizontal movement of the rotating mechanism 8, the gripper mechanism 6, and the lifting mechanism 7. This enables the entire process of the cross shaft 10 being gripped from the input conveyor belt 3, moved to the positioning seat 5 for positioning and detection, and finally moved to the output conveyor belt 4 for placement.

[0052] VII. Testing Process

[0053] 1) Undetected cross shafts 10 are transported to the designated position by the input conveyor belt 3.

[0054] 2) The gripper mechanism 6 descends under the drive of the lifting mechanism 7, clamps the cross shaft 10, and then rises under the action of the lifting mechanism 7.

[0055] 3) The moving mechanism 9 drives the rotating mechanism 8, the gripper mechanism 6 and the lifting mechanism 7 to move horizontally, moving the cross shaft 10 above the positioning seat 5.

[0056] 4) The lifting mechanism 7 drives the gripper mechanism 6 to descend, placing the cross shaft 10 on the positioning seat 5. The two ends of the cross shaft 10 fall into the V-shaped groove 51, and the other two ends fall into the rectangular groove 52.

[0057] 5) The gripper mechanism 6 is released and rises under the action of the lifting mechanism 7, and the moving mechanism 9 moves the gripper mechanism 6 away.

[0058] 6) The clamping and testing mechanism 2 performs testing on both ends of the cross shaft 10 symmetrically.

[0059] 7) After the inspection is completed, the gripper mechanism 6 grips the cross shaft 10 again, and the rotating mechanism 8 drives it to rotate 45°. Then the above steps are repeated until all four ends of the cross shaft 10 have been inspected.

[0060] 8) Finally, the moving mechanism 9 moves the inspected cross shaft 10 above the output conveyor belt 4, the gripper mechanism 6 releases, and the cross shaft 10 is sent out by the output conveyor belt 4.

[0061] The above embodiments detail the specific structure and working process of the cross shaft oil pack assembly and testing mechanism of this utility model. Through the coordinated operation of various mechanisms, the automation, efficiency and accuracy of cross shaft oil pack assembly and testing are achieved.

[0062] The parts not described in detail in this application are prior art, and therefore are not described in detail in this application.

[0063] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0064] Although this document uses a significant amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely to facilitate the description and explanation of the nature of this application; interpreting them as any additional limitation would be contrary to the spirit of this application.

[0065] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A cross shaft oil seal assembly and testing mechanism, comprising a frame and a clamping and testing mechanism mounted on the frame, wherein the clamping and testing mechanism is disposed on one side of a positioning plate and is used to clamp and test the symmetrical ends of the cross shaft, characterized in that, Also includes: An input conveyor belt is used to sequentially input the undetected cross shafts; An output conveyor belt is used to sequentially output the cross shafts after they have been inspected; A positioning seat, mounted on the frame and located on one side of the clamping and detection mechanism, is used to position the cross shaft so that the clamping and detection mechanism can detect the cross shaft. A gripper mechanism is used to clamp and transfer the cross shaft; A lifting mechanism, connected to the gripper mechanism, is used to drive the gripper mechanism to move up and down; A rotating mechanism, connected to the lifting mechanism, is used to drive the gripper mechanism and the lifting mechanism to rotate synchronously in steps, with each step rotating at an angle of 45°, so as to realize the angle switching of the cross axis; A moving mechanism is used to drive the rotating mechanism, the gripper mechanism, and the lifting mechanism to move horizontally synchronously, so as to realize the movement of the cross shaft between the input conveyor belt, the positioning seat, and the output conveyor belt.

2. The cross-shaft oil seal assembly and testing mechanism according to claim 1, characterized in that, The positioning seat is provided with symmetrically arranged V-shaped grooves and rectangular grooves. The two V-shaped grooves and the two rectangular grooves form a cross-shaped positioning structure. The V-shaped grooves are used to position the two ends of the cross shaft that need to be detected, and the rectangular grooves are used to place the two ends of the cross shaft that have been detected or are to be detected.

3. The cross-shaft oil seal assembly and testing mechanism according to claim 2, characterized in that, Each of the V-grooves is also provided with two support rods arranged in a V-shape.

4. The cross-shaft oil seal assembly and testing mechanism according to claim 3, characterized in that, Each of the aforementioned support rods is made of tungsten steel.

5. The cross-shaft oil seal assembly and testing mechanism according to claim 2, characterized in that, The size of the rectangular groove is larger than the diameter of any one of the four ends of the cross shaft.

6. The cross-shaft oil seal assembly and testing mechanism according to claim 1, characterized in that, The positioning seat is hollow and has a sensor inside to detect the presence or absence of the cross shaft.

7. The cross-shaft oil seal assembly and testing mechanism according to claim 1, characterized in that, The gripper mechanism is an electric gripper or a pneumatic gripper.

8. A cross-shaft oil seal assembly and testing mechanism according to any one of claims 1-7, characterized in that, The moving mechanism is a linear module or a rotary track.

9. A cross-shaft oil seal assembly and testing mechanism according to any one of claims 1-7, characterized in that, The lifting mechanism is a pneumatic cylinder or an electric cylinder.

10. A cross-shaft oil seal assembly and testing mechanism according to any one of claims 1-7, characterized in that, The number of gripper mechanisms is one or two.