A detection structure for hub production

By automating the transfer mechanism and inspection structure, the issues of ease of operation and stability of the inspection device used in wheel hub production have been resolved, enabling comprehensive inspection and efficient automated operation of wheel hubs, thus improving inspection efficiency and safety.

CN224416755UActive Publication Date: 2026-06-26CHONGQING NANJIN TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING NANJIN TECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing wheel hub production testing equipment suffers from several drawbacks. The placement of the testing camera obstructs operation and poses a risk of accidental damage. Furthermore, the fixing method relies on manual rotation of the pressure plate, which is inconvenient to operate and results in inconsistent tightness, affecting testing efficiency and safety.

Method used

Employing a transfer mechanism and detection structure, the wheel hub is automatically positioned and securely fixed via electric push rods and servo motors. Combined with multiple cameras for all-around detection, and using computer analysis of image data, an automated detection process is achieved.

Benefits of technology

It improves testing efficiency and accuracy, avoids the obstacles and risks of accidental contact caused by manual operation, ensures the stability and convenience of testing, and enhances the safety and quality control of wheel hub production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a detection structure for hub production belongs to hub manufacturing quality detection technical field, and its technical scheme main points include workbench, the rear side of workbench top is provided with support, and the transfer mechanism is provided between workbench and support, the inboard of transfer mechanism is provided with hub, and this application passes through setting transfer mechanism, and the loading and unloading structure can drive hub to move back and forth in the loading and unloading position of workbench front side and rear detection area, and the hub is away from detection structure when loading and unloading, and the risk of the hindering and accidental touch of detection structure is thoroughly avoided, and when needing positioning detection, can start electric push rod and drive carousel to go up and down, make upper pole, convex column and the pin hole of hub, middle hole accurate plug -in and automatic pressure tightly, replace manual fastening, improve the operation convenience, and the fastening strength is stable, ensure that the hub does not shake when detecting, and the detection risk of firm fixing is solved.
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Description

Technical Field

[0001] This utility model relates to the field of wheel hub manufacturing quality inspection technology, and in particular to an inspection structure used in wheel hub production. Background Technology

[0002] The wheel hub is the part of the wheel where the axle is mounted, also known as the "wheel rim" or "steel rim". Wheel hubs are prone to getting dirty, and if they are not cleaned for a long time, they may be corroded and deformed, which may lead to safety hazards. Therefore, special attention should be paid to the maintenance of wheel hubs.

[0003] With the continuous advancement of technology, wheel hubs are now mainly produced using aluminum alloy die casting. However, after die casting, cooling is required before the next process of precision machining can begin. During cooling, some wheel hubs may develop cracks due to thermal expansion and contraction. Such wheel hubs pose a significant safety hazard and cannot be sold on the market. Therefore, inspection is necessary before precision machining. Currently, manual visual inspection is commonly used, which is inefficient. When visual inspection is used, it is impossible to inspect multiple surfaces of the wheel hub simultaneously, thus limiting the efficiency of inspection.

[0004] An existing patent (publication number: CN219935706U) discloses a testing device for wheel hub production. This utility model uses a drive component and a vision inspection component to control the rotation of the wheel hub body, thereby controlling the wheel hub body to rotate and collecting image information, which greatly improves the testing efficiency.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the wheel hub production inspection device proposed in these patents has two problems. First, the inspection camera at the upper crossbar position, due to its location, will obstruct wheel hub installation and disassembly, affecting not only the convenience of manual operation but also posing a risk of accidental damage. Second, the fixing method using screws, pressure plates, and nuts relies on manual rotation of the pressure plate for tightening, which is inconvenient to operate and the degree of tightening is unstable, potentially leading to inspection risks due to loose connections.

[0006] Therefore, a testing structure for wheel hub production is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a detection structure for wheel hub production, which can solve two problems of the detection device for wheel hub production proposed in the above-mentioned patent. First, the detection camera at the position of the upper crossbar will obstruct the installation and disassembly of the wheel hub due to its position, which not only affects the convenience of manual operation, but also poses a risk of accidental damage. Second, the fixing method using screws, pressure plates and nuts relies on manual rotation of the pressure plate to complete the fastening, which is inconvenient to operate and the degree of fastening is unstable, which may cause detection risks due to loose connection.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a testing structure for wheel hub production, including a workbench, a support is provided on the rear side of the top of the workbench, a transfer mechanism is provided between the workbench and the support, a wheel hub is provided on the inner side of the transfer mechanism, a central hole and a pin hole are respectively opened on the top of the wheel hub, and a testing structure is provided at the bottom of the support.

[0009] The transfer mechanism includes a transfer structure mounted on the top of the workbench. The top of the transfer structure contacts the top side inside the hub. A concave post and a lower rod are welded to the top of the transfer structure. The lower rod and the concave post are respectively inserted into the pin hole and the middle hole. An electric push rod is bolted to the top of the bracket. A rotating shaft is welded to the output end of the electric push rod. A turntable is rotatably connected to the bottom of the rotating shaft. The turntable is located on the top of the hub. A convex post and an upper rod are welded to the bottom of the turntable. The upper rod and the convex post are respectively inserted into the pin hole and the concave post.

[0010] Preferably, the transfer structure includes a transfer groove formed on the top of the workbench, and a support plate is slidably connected inside the transfer groove.

[0011] Preferably, a hydraulic cylinder is bolted to the rear side of the bottom of the workbench, and a connecting sleeve is bolted to the output end of the hydraulic cylinder. The top of the connecting sleeve is bolted to the bottom of the support plate.

[0012] Preferably, a servo motor is bolted to the bottom of the support plate, the output end of the servo motor passes through the bottom of the support plate, and a fixed load plate is fixedly connected to the output end of the servo motor. The top of the fixed load plate contacts the top side inside the wheel hub, and the top of the fixed load plate is welded to the concave post and the lower rod respectively.

[0013] Preferably, the detection structure includes a suspension rod bolted to the bottom of the support, and crossbars are welded to the bottom and top of the front side of the suspension rod.

[0014] Preferably, a first detection camera is welded to the inner side of the crossbar, and the first detection camera is located at the top and bottom of the wheel hub respectively. A second detection camera is provided in the middle of the front side of the hanger, and the second detection camera is facing the outer ring surface of the wheel hub.

[0015] Preferably, a computer is provided on the right side of the top of the workbench, and the computer is electrically connected to the first detection camera and the second detection camera respectively.

[0016] Preferably, a controller is provided on the right side of the top of the workbench, and the controller is electrically connected to the servo motor, the hydraulic cylinder and the electric push rod respectively.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a transfer mechanism, which can drive the wheel hub to move back and forth between the loading and unloading position on the front side of the workbench and the inspection area on the rear side. During loading and unloading, the wheel hub is far away from the inspection structure, which completely avoids the obstruction of the inspection structure to the operation and the risk of accidental collision. When positioning inspection is required, the electric push rod can be activated to drive the turntable to rise and fall, so that the upper rod, the protrusion and the pin hole and the middle hole of the wheel hub are accurately inserted and automatically pressed, replacing manual tightening, improving the convenience of operation, and the tightening force is stable, ensuring that the wheel hub does not shake during inspection, and solving the inspection risk of insecure fixation.

[0019] 2. By setting up a detection structure, this application enables the detection structure to perform comprehensive detection on all surfaces of the wheel hub after the transfer mechanism has stably transferred and fixed the wheel hub to the detection area. When the transfer mechanism then drives the wheel hub to rotate stably, the detection structure can work together with the transfer mechanism to improve detection efficiency and accuracy, thus making up for the shortcomings of existing devices in terms of ease of operation and stability. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the testing structure used in wheel hub production according to this utility model;

[0021] Figure 2 This is a structural diagram of the workbench of this utility model;

[0022] Figure 3 This is a structural diagram of the transfer mechanism of this utility model;

[0023] Figure 4 This is a structural diagram of the detection structure of this utility model;

[0024] Figure 5 This is a structural diagram of the transfer structure of this utility model.

[0025] In the diagram, 1. Workbench; 2. Support; 3. Transfer mechanism; 31. Transfer structure; 311. Transfer trough; 312. Bearing plate; 313. Hydraulic cylinder; 314. Connecting sleeve; 315. Servo motor; 316. Fixed load plate; 32. Concave column; 33. Lower rod; 34. Electric push rod; 35. Rotating shaft; 36. Turntable; 37. Protruding column; 38. Upper rod; 4. Hub; 5. Central hole; 6. Pin hole; 7. Detection structure; 71. Hanging rod; 72. Crossbar; 73. First detection camera; 74. Second detection camera; 8. Computer; 9. Controller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A testing structure for wheel hub production includes a workbench 1, a support 2 is provided on the rear side of the top of the workbench 1, a transfer mechanism 3 is provided between the workbench 1 and the support 2, a wheel hub 4 is provided on the inner side of the transfer mechanism 3, a central hole 5 and a pin hole 6 are respectively opened on the top of the wheel hub 4, and a testing structure 7 is provided at the bottom of the support 2.

[0029] The transfer mechanism 3 includes a transfer structure 31 disposed on the top of the workbench 1. The top of the transfer structure 31 contacts the top side inside the hub 4. A concave post 32 and a lower rod 33 are welded to the top of the transfer structure 31. The lower rod 33 and the concave post 32 are respectively inserted into the pin hole 6 and the middle hole 5. An electric push rod 34 is bolted to the top of the bracket 2. A rotating shaft 35 is welded to the output end of the electric push rod 34. A turntable 36 is rotatably connected to the bottom of the rotating shaft 35. The turntable 36 is located on the top of the hub 4. A convex post 37 and an upper rod 38 are welded to the bottom of the turntable 36. The upper rod 38 and the convex post 37 are respectively inserted into the pin hole 6 and the concave post 32.

[0030] In this embodiment: by setting up a workbench 1, a bracket 2, a transfer mechanism 3, a hub 4, a central hole 5, a pin hole 6, and a detection structure 7, during operation, the hub 4 is first placed on top of the transfer structure 31 on the front side of the workbench 1, and the concave post 32 and the lower rod 33 on the top of the transfer structure 31 are inserted into the central hole 5 and the pin hole 6 of the hub 4 to complete the initial positioning. Then, the transfer structure 31 drives the hub 4 to move to the detection area of ​​the detection structure 7 on the rear side of the workbench 1. At this time, the electric push rod 34 extends, driving the turntable 36 to descend, allowing the upper rod 38 to insert into the pin hole 6 and contact the lower rod 33. The protruding post 37 is inserted into the concave post 32, and the turntable 36 presses against the top of the hub 4 to achieve a stable fixation. During the test, the transfer structure 31 drives the hub 4 to rotate. At the same time, the rotating shaft 35 passively drives the turntable 36 and the hub 4 to rotate synchronously. The test structure 7 performs a comprehensive test on the rotating hub 4. After the test is completed, the electric push rod 34 retracts, causing the turntable 36 to rise and detach from the hub 4. The transfer structure 31 then brings the hub 4 back to the front of the workbench 1, making it easy to remove the hub 4 and replace it with a new hub 4 to be tested. The whole process is smooth and effectively improves the test efficiency and stability.

[0031] Specifically, such as Figure 5As shown, the transfer structure 31 includes a transfer groove 311 opened on the top of the workbench 1, and a bearing plate 312 is slidably connected inside the transfer groove 311.

[0032] Specifically, such as Figure 5 As shown, a hydraulic cylinder 313 is bolted to the rear side of the bottom of the workbench 1, and a connecting sleeve 314 is bolted to the output end of the hydraulic cylinder 313. The top of the connecting sleeve 314 is bolted to the bottom of the bearing plate 312.

[0033] Specifically, such as Figure 5 As shown, a servo motor 315 is bolted to the bottom of the support plate 312. The output end of the servo motor 315 passes through the bottom of the support plate 312. The output end of the servo motor 315 is fixedly connected to a fixed load plate 316. The top of the fixed load plate 316 contacts the top side inside the hub 4. The top of the fixed load plate 316 is welded to the concave post 32 and the lower rod 33 respectively.

[0034] In this embodiment: by setting the transfer structure 31, the hydraulic cylinder 313 can drive the connecting sleeve 314 to drive the bearing plate 312 to slide along the transfer groove 311, so as to realize the translation of the wheel hub 4 between the loading and unloading position on the front side and the detection position on the rear side of the workbench 1. When detecting the wheel hub 4, the servo motor 315 can drive the fixed plate 316 and the wheel hub 4 to rotate actively, and cooperate with the rotating shaft 35 to make the turntable 36 rotate synchronously, providing stable rotation detection conditions for the detection structure 7. The concave post 32 and the lower rod 33 on the top of the fixed plate 316 are inserted into the middle hole 5 and the pin hole 6 of the wheel hub 4, providing the initial positioning reference for the wheel hub 4.

[0035] Specifically, such as Figure 4 As shown, the detection structure 7 includes a rod 71 bolted to the bottom of the bracket 2, and a crossbar 72 is welded to the bottom and top of the front side of the rod 71.

[0036] Specifically, such as Figure 4 As shown, a first detection camera 73 is welded to the inner side of the crossbar 72. The first detection camera 73 is located at the top and bottom of the wheel hub 4 respectively. A second detection camera 74 is set in the middle of the front side of the hanger 71. The second detection camera 74 is directly facing the outer ring surface of the wheel hub 4.

[0037] In this embodiment: by setting up the detection structure 7, the first detection cameras 73 at the bottom and top of the hanger 71 can respectively capture and detect the bottom and top of the wheel hub 4, and the second detection camera 74 in the middle performs detection on the outer ring surface of the wheel hub 4. The three work together to achieve all-round visual detection of the wheel hub 4 without blind spots, ensuring that no defects are missed.

[0038] Specifically, such as Figure 1 As shown, a computer 8 is installed on the right side of the top of the workbench 1. The computer 8 is electrically connected to the first detection camera 73 and the second detection camera 74 respectively.

[0039] Specifically, such as Figure 1 As shown, a controller 9 is installed on the right side of the top of the workbench 1. The controller 9 is electrically connected to the servo motor 315, the hydraulic cylinder 313 and the electric push rod 34 respectively.

[0040] In this embodiment: by setting up a computer 8 and a controller 9, the computer 8 receives and processes the image data of the first detection camera 73 and the second detection camera 74 to complete the detection result analysis, while the controller 9 receives instructions and coordinates the action of the servo motor 315, the hydraulic cylinder 313 and the electric push rod 34 to realize the automated control of the entire detection process, thereby improving the ease of operation and detection accuracy.

[0041] Working principle: In the process of using the inspection structure for wheel hub production, firstly, the wheel hub 4 to be inspected is placed on the fixed loading plate 316 on the front side of the workbench 1, so that the concave post 32 at the top of the fixed loading plate 316 is inserted into the middle hole 5 of the wheel hub 4 and the lower rod 33 is inserted into the pin hole 6, completing the initial positioning. The controller 9 starts the hydraulic cylinder 313, and the hydraulic cylinder 313 drives the bearing plate 312 to slide along the transfer groove 311 through the connecting sleeve 314, moving the wheel hub 4 to the inspection area on the rear side of the workbench 1. At this time, the controller 9 controls the electric push rod 34 to extend, pushing the turntable 36 to descend, so that the upper rod 38 at the bottom of the turntable 36 is inserted into the pin hole 6 of the wheel hub 4 and contacts the lower rod 33, and the protruding post 37 is inserted into the concave post 32. At the same time, the turntable 36 presses the top of the wheel hub 4 to achieve fixation. Then the controller 9 starts the servo motor. The servo motor 315 drives the fixed-load plate 316 to rotate, which in turn drives the wheel hub 4, turntable 36, and shaft 35 to rotate synchronously. During this process, the first detection camera 73 and the second detection camera 74 on the boom 71 work synchronously to transmit the images of various parts of the wheel hub 4 to the computer 8. The computer 8 analyzes and processes the image data to determine whether the wheel hub 4 is qualified. After the inspection is completed, the computer 8 feeds back the results to the controller 9. The controller 9 first controls the electric push rod 34 to retract, so that the turntable 36 rises and disengages from the wheel hub 4. Then, it controls the hydraulic cylinder 313 to drive the bearing plate 312 to move back, sending the wheel hub 4 back to the front of the workbench 1. Finally, the wheel hub 4 that has been inspected is removed, and a new wheel hub 4 to be inspected is replaced to enter the next round of inspection process.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An inspection structure for hub production, comprising a worktable (1), characterized in that: A support (2) is provided on the rear side of the top of the workbench (1). A transfer mechanism (3) is provided between the workbench (1) and the support (2). A hub (4) is provided on the inner side of the transfer mechanism (3). A central hole (5) and a pin hole (6) are respectively opened on the top of the hub (4). A detection structure (7) is provided at the bottom of the support (2). The transfer mechanism (3) includes a transfer structure (31) set on the top of the workbench (1). The top of the transfer structure (31) is in contact with the top side inside the hub (4). A concave column (32) and a lower rod (33) are welded to the top of the transfer structure (31). The lower rod (33) and the concave column (32) are respectively inserted into the pin hole (6) and the middle hole (5). An electric push rod (34) is bolted to the top of the bracket (2). A rotating shaft (35) is welded to the output end of the electric push rod (34). A turntable (36) is rotatably connected to the bottom of the rotating shaft (35). The turntable (36) is located on the top of the hub (4). A convex column (37) and an upper rod (38) are welded to the bottom of the turntable (36). The upper rod (38) and the convex column (37) are respectively inserted into the pin hole (6) and the concave column (32).

2. The inspection structure for wheel hub production according to claim 1, characterized in that: The transfer structure (31) includes a transfer groove (311) opened on the top of the workbench (1), and a bearing plate (312) is slidably connected inside the transfer groove (311).

3. The inspection structure for wheel hub production according to claim 2, characterized in that: A hydraulic cylinder (313) is bolted to the rear side of the bottom of the workbench (1), and a connecting sleeve (314) is bolted to the output end of the hydraulic cylinder (313). The top of the connecting sleeve (314) is bolted to the bottom of the bearing plate (312).

4. The inspection structure for wheel hub production according to claim 2, characterized in that: A servo motor (315) is bolted to the bottom of the support plate (312). The output end of the servo motor (315) passes through the bottom of the support plate (312). The output end of the servo motor (315) is fixedly connected to a fixed load plate (316). The top of the fixed load plate (316) contacts the top side inside the hub (4). The top of the fixed load plate (316) is welded to the concave post (32) and the lower rod (33) respectively.

5. The inspection structure for wheel hub production according to claim 1, characterized in that: The detection structure (7) includes a rod (71) bolted to the bottom of the bracket (2), and a crossbar (72) is welded to the bottom and top of the front side of the rod (71).

6. The inspection structure for wheel hub production according to claim 5, characterized in that: A first detection camera (73) is welded to the inner side of the crossbar (72). The first detection camera (73) is located at the top and bottom of the hub (4). A second detection camera (74) is provided in the middle of the front side of the hanger (71). The second detection camera (74) is directly opposite the outer ring surface of the hub (4).

7. The inspection structure for wheel hub production according to claim 6, characterized in that: A computer (8) is installed on the right side of the top of the workbench (1), and the computer (8) is electrically connected to the first detection camera (73) and the second detection camera (74).

8. The inspection structure for wheel hub production according to claim 4, characterized in that: A controller (9) is provided on the right side of the top of the workbench (1). The controller (9) is electrically connected to the servo motor (315), the hydraulic cylinder (313) and the electric push rod (34).