Outer ring positioning surface antifriction sheet assembling mechanism
By designing an outer ring positioning surface friction reduction plate assembly mechanism including brackets, work bench plates, positioners, injection sensors, cylinders and sensors, the problems of missing, multi-assembled, and reversed during the assembly of the outer ring positioning surface friction reduction plate of the vehicle transmission shaft fixed end section are solved, and 100% quality assurance and effective elimination of abnormal noise problems are achieved.
Patent Information
- Application Number
- CN202422233464.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-12
AI Technical Summary
During the assembly of the outer ring positioning surface of the fixed end section of the vehicle transmission shaft, the prior art is difficult to ensure the correct assembly of the friction reducing plate 100%. There are often cases of missed installation, multiple installations or reverse installations, resulting in the problem of abnormal noise not being completely solved.
An outer ring positioning surface friction reducing plate assembly mechanism is designed, including components such as brackets, work bench panels, positioners, incident sensors, cylinders and sensors. By judging the pulse sensor, determine whether there is a friction reduction plate in the positioner, the mechanical error prevention of cylinder push plate ensures that there is only one friction reduction plate, and the sensor detects whether the friction reduction plate is correctly installed in the friction reduction plate to ensure the accuracy of the assembly process.
A 100% quality assurance is achieved to ensure that only one friction-reducing film is installed, without missing, no reverse, and no more installations are installed, effectively eliminating the problem of abnormal noise, reducing the risk of line shutdown and recall by the OEM, and improving customer satisfaction and the core competitiveness of the enterprise.
Smart Images
Figure CN223012413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an assembly device, in particular to an anti-friction sheet assembly mechanism for the outer ring positioning surface of the fixed end joint of a car drive shaft. Background Technique
[0002] The constant velocity universal joint drive shaft of a car consists of a fixed end joint, an intermediate shaft and a movable end joint. The movable end joint is connected to the engine, and the fixed end joint is directly connected to the wheel hub of the car. The power of the engine is transmitted to the wheel through the movable end joint, the intermediate shaft and the fixed end joint, so as to drive the wheel to rotate. The fixed end joint is connected to the wheel hub through the spline and internal thread of the handle part of the outer ring. When the vehicle starts and brakes, a large frictional force is generated between the positioning surface of the outer ring and the end face of the wheel hub, which will generate a large abnormal noise and cause dissatisfaction among customers.
[0003] In order to eliminate the abnormal noise, a method of installing an anti-friction sheet on the outer ring positioning surface and then loading it onto the vehicle is adopted. Installing an anti-friction sheet on the outer ring positioning surface requires one piece to be installed, and it is not allowed to be missed or overloaded. In the past, whether the anti-friction sheet was missed or overloaded was completely judged by the operator's visual inspection. However, due to the influence of human factors, the phenomena of missing or overloading often occur, resulting in the inability to eliminate the abnormal noise, and even abnormal noise occurs when leaving the main factory, there is a risk of the main factory stopping the production line or even being recalled. Therefore, there is an urgent need for a mechanism on the assembly site that can ensure 100% of the anti-friction sheet assembly quality. Summary of the Invention
[0004] The purpose of the utility model is to provide an anti-friction sheet assembly mechanism for the outer ring positioning surface, which can assemble the anti-friction sheet on the outer ring positioning surface online at the assembly site and ensure 100% of the quality.
[0005] The technical solution of the utility model is: an anti-friction sheet assembly mechanism for the outer ring positioning surface, including a bracket and a workbench plate. The workbench plate is supported by the bracket and fixedly connected to the bracket. A table plate relief hole is provided on the workbench plate. A locator, a through-beam sensor A, a through-beam sensor B and a cylinder are fixedly installed on the upper surface of the workbench plate. A cylindrical recess is provided on the locator. A locator relief hole concentric with it is provided below the center of the cylindrical recess. The locator relief hole is opposite to the table plate relief hole and has the same diameter and center line. A locator groove is provided on the outer wall of the cylindrical recess. The through-beam sensor A and the through-beam sensor B are respectively arranged on both sides of the locator and opposite to the locator groove. The fixed end of the cylinder is fixedly installed on the upper surface of the workbench plate, and the movable end of the cylinder is fixedly connected to a push plate. The push plate is slidably connected to the upper plane of the locator. A sensor A and a sensor B are fixedly installed below the workbench plate. The sensor A and the sensor B are arranged on both sides of the table plate relief hole and opposite to the axis of the table plate relief hole.
[0006] An electric control box is fixedly installed on the workbench plate. An audible and visual alarm and a touch screen are provided on the electric control box. A start button and an emergency stop button are provided on the touch screen. The audible and visual alarm, the touch screen, the air cylinder, the opposed sensor A, the opposed sensor B, the sensor A, and the sensor B are electrically connected to the controller through signal lines.
[0007] The principle of the present utility model is as follows: It is judged whether there is an antifriction sheet in the locator through the opposed sensor. The mechanical anti-mistake of the air cylinder push plate ensures that there is only one antifriction sheet in the locator. It is judged whether the handle part is installed with the antifriction sheet through the sensor. If the above assemblies are all correct, the green light is on, and the transmission shaft can be removed. Otherwise, the audible and visual alarm will prompt the alarm content.
[0008] The advantages of the present utility model are as follows: It can ensure 100% quality of the installation of the antifriction sheet on the outer ring positioning surface of the fixed end joint of the transmission shaft. It can ensure that only one antifriction sheet is installed on the outer ring positioning surface as required, and ensure no missing installation, no reverse installation, and no over-installation. It eliminates the phenomena of missing installation, over-installation, and reverse installation caused by human factors, increases customer satisfaction, and enhances the core competitiveness of the enterprise. Description of the Drawings
[0009] Figure 1 It is a structural schematic diagram of the antifriction sheet assembly mechanism for the outer ring positioning surface of the present utility model.
[0010] Figure 2 is Figure 1 the top view of
[0011] Figure 3 is Figure 1 the structural schematic diagram of the locator in
[0012] Figure 4 is Figure 3 the A-A sectional view of
[0013] Figure 5 is Figure 3 the top view of
[0014] Figure 6 It is the transmission shaft with the antifriction sheet assembled.
[0015] Figure 7 is Figure 6 the enlarged view of part Ⅰ in
[0016] In the figure: 1 bracket, 2 sensor A, 3 workbench plate, 4 start button, 5 touch screen, 6 emergency stop button, 7 electric control box, 8 audible and visual alarm, 9 opposed sensor A, 10 air cylinder, 11 push plate, 12 locator, 13 opposed sensor B, 14 antifriction sheet container, 15 table board relief hole, 16 sensor B, 17 locator groove, 18 locator relief hole, 19 cylindrical concave, 20 outer ring positioning surface, 21 handle part, 22 antifriction sheet, 23 outer ring. Specific implementation mode
[0017] The utility model is a mechanism for assembling a friction-reducing sheet on the positioning surface of the fixed-end joint outer ring of a car constant velocity universal joint drive shaft. The technical solution is as follows: the friction-reducing sheet assembling mechanism for the outer ring positioning surface includes a bracket 1 and a workbench plate 3. The workbench plate 3 is supported by the bracket and fixedly connected to the bracket. The workbench plate is provided with a table plate relief hole 15. A positioner 12, an opposed sensor A 9, an opposed sensor B 13, and a cylinder 10 are fixedly installed on the upper surface of the workbench plate. Among them, the positioner 12 is provided with a cylindrical recess 19. Below the center of the cylindrical recess 19, there is a positioner relief hole 18 concentric with it. The positioner relief hole 18 is opposite to the table plate relief hole 15 and has the same diameter and center line. A positioner groove 17 is provided on the outer wall of the cylindrical recess 19. The opposed sensors A and B are respectively arranged on both sides of the positioner 12 and are opposite to the positioner groove 17. The fixed end of the cylinder 10 is fixedly installed on the upper surface of the workbench plate 3, and the movable end of the cylinder is fixedly connected to a push plate 11. The push plate 11 is slidably connected to the upper plane of the positioner 12. Sensors A 2 and B 16 are fixedly installed below the workbench plate 3. The sensors A 2 and B 16 are arranged on both sides of the table plate relief hole 15 and are opposite to the axis of the table plate relief hole.
[0018] An electric control box 7 is fixedly installed on the workbench plate 3. An audible and visual alarm 8 and a touch screen 5 are provided on the electric control box. A start button 4 and an emergency stop button 6 are provided on the touch screen. The audible and visual alarm 8, the touch screen 5, the cylinder 10, the opposed sensor A 9, the opposed sensor B 13, the sensor A 2, and the sensor B 16 are electrically connected to the controller through signal lines.
[0019] The working process of the present utility model is as follows: Press the start button 4, place the antifriction disc 22 into the cylindrical recess 19 of the positioner 12 (the depth of the cylindrical recess is the same as the height of the antifriction disc). The opposed sensors A9 and opposed sensors B13 determine whether there is an antifriction disc 22 in the positioner 12. If there is an antifriction disc 22, the cylinder 10 drives the push plate 11 to slide over the cylindrical recess 19 on the positioner 12, aiming to push out the redundant antifriction discs or detect the incorrectly placed antifriction discs (when the push plate is blocked by the incorrectly placed antifriction disc and stops moving, there will be an audible and visual alarm). The cylinder 10 drives the push plate 11 to return to the original position, insert the handle 21 of the outer ring of the fixed end joint of the transmission shaft 23 through the inner hole of the antifriction disc 22 into the positioner relief hole 18 and the platen relief hole 15 (the inner diameter of the inner hole of the antifriction disc is slightly smaller than the inner diameter of the relief hole), so that the outer ring positioning surface 20 contacts the antifriction disc 22 and is connected to the outer ring 23 by the internal pressing bumps on the cylindrical surface of the antifriction disc. The sensor A2 detects whether there is a workpiece, and the sensor B16 detects whether the antifriction disc 22 is installed reversely (if the antifriction disc is installed reversely, the sensor B16 cannot detect the handle 21 of the outer ring of the fixed end joint of the transmission shaft 23). If all the above detection results are qualified, the green light is on, indicating that the antifriction disc 22 is assembled correctly. Otherwise, if any of the above detection results is abnormal, there will be an audible and visual alarm, and the alarm content will be prompted to remind the operator to make rectifications. The present utility model realizes the on-site online assembly of the antifriction disc at the assembly site and eliminates the phenomena of missing installation, over-installation, and reverse installation caused by human factors, ensuring qualified quality.
Claims
1. The outer ring positioning surface anti-friction plate assembly mechanism is characterized by: The invention comprises a support (1) and a workbench (3), wherein the workbench (3) is supported by the support and fixedly connected to the support, a workbench clearance hole (15) is provided on the workbench, a positioner (12), a beam sensor A (9), a beam sensor B (13), and a cylinder (10) are fixedly mounted on the workbench, wherein the positioner (12) is provided with a cylindrical recess (19), a positioner clearance hole (18) concentric with the cylindrical recess (19) is provided below the center of the cylindrical recess (19), the positioner clearance hole (18) is opposite to the workbench clearance hole (15) and has the same diameter and center line, and the cylindrical recess (19) is provided with a cylindrical recess (19). A locator groove (17) is provided on the outer wall of the nest (19); a pair of opposing sensors A and B are respectively arranged on both sides of the locator (12) and are opposite to the locator groove (17); the fixed end of the cylinder (10) is fixedly mounted on the work table (3); the movable end of the cylinder is fixedly connected to the push plate (11); the push plate (11) is slidably connected to the upper plane of the locator (12); a sensor A (2) and a sensor B (16) are fixedly mounted below the work table (3); the sensors A (2) and B (16) are arranged on both sides of the table plate clearance hole (15) and are opposite to the axis of the table plate clearance hole.
2. The outer ring positioning surface anti-friction plate assembly mechanism according to claim 1, characterized in that: An electric control box (7) is fixedly mounted on the workbench (3), and an audible and visual alarm (8) and a touch screen (5) are provided on the electric control box. A start button (4) and an emergency stop button (6) are provided on the touch screen. The audible and visual alarm (8), the touch screen (5), the cylinder (10), the through-beam sensor A (9), the through-beam sensor B (13), the sensor A (2), and the sensor B (16) are electrically connected to the controller via a signal line.