An airtightness testing device for wheel rim mold products

Abstract

This utility model relates to the field of wheel rim mold testing technology and discloses a wheel rim mold product airtightness testing device. It includes a base plate for supporting an upper component, and an inner support mechanism for supporting different wheel rim molds is fixedly installed on one side of the top of the base plate. The inner support mechanism includes a power component for adjusting the inner support spacing and an inner support assembly for providing inner support to different wheel rim molds. A testing mechanism for testing different wheel rim molds is fixedly installed on the side of the top of the base plate away from the inner support mechanism. The advantages of the inner support mechanism are that the power component drives the telescopic rod to extend and retract via a cylinder, allowing for flexible adjustment of the inner support spacing; in the inner support assembly, a first connecting plate transmits motion, and three sets of circumferentially symmetrical inner support plates can evenly provide inner support to different wheel rim molds. The surface coating increases friction and prevents slippage. The second connecting plate makes the inner support more stable. The device is adaptable to various molds, ensuring mold stability during testing and improving testing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of wheel rim mold testing technology, specifically, to a wheel rim mold product airtightness testing device. Background Technology

[0002] Wheel rim molds are specialized tools used to manufacture automobile wheel rims. They are mainly used to process metal materials into specific wheel rim structures through casting or forging processes. Wheel rim molds need to undergo processes such as precision design, CNC machining, and EDM engraving to ensure dimensional accuracy and surface finish.

[0003] For example, CN221803854U discloses a wheel rim inspection device, including a test area, an inspection area, an inspected area, a main control console, and a six-axis robot. A first placement frame and a second placement frame are provided in the test area. An inspection module is provided in the inspection area. The inspection module includes a support bracket for carrying the wheel rim to be inspected, a rotation mechanism for driving the support bracket to rotate in its horizontal plane, a first visual inspection mechanism for inspecting the upper surface of the wheel rim, a second visual inspection mechanism for inspecting the inner circumference of the wheel rim, and a third visual inspection mechanism for inspecting the outer circumference of the wheel rim. The six-axis robot is located between the first placement frame, the inspection module, and the second placement frame. It achieves automatic loading, inspection, and unloading of the wheel rim to be inspected, with a high degree of automation, improving inspection efficiency. It can also perform multi-angle inspection of the wheel rim during rotation, which is beneficial for improving inspection quality.

[0004] However, existing wheel rim mold air tightness testing devices can only perform air tightness testing on wheel rim molds of the same model. When it is necessary to perform air tightness testing on wheel rim molds of different sizes and models, it is necessary to change the equipment for testing. Frequent equipment changes reduce the overall testing efficiency. Therefore, those skilled in the art provide a wheel rim mold product air tightness testing device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide an airtightness testing device for wheel rim mold products, which solves the problem in the prior art that when it is necessary to test the airtightness of wheel rim molds of different sizes and models, it is necessary to change the equipment for testing, and the frequent equipment changes reduce the overall testing efficiency.

[0006] This utility model provides the following technical solution: an airtightness testing device for wheel rim mold products, including a base plate for supporting an upper component, an inner support mechanism for supporting different wheel rim molds fixedly arranged on one side of the top of the base plate, the inner support mechanism including a power component for adjusting the spacing of the inner supports and an inner support component for providing inner support for different wheel rim molds, and a testing mechanism for testing different wheel rim molds fixedly arranged on the side of the top of the base plate away from the inner support mechanism.

[0007] As a preferred embodiment of the above technical solution, the power assembly includes a first fixed column, which is fixedly connected to one side of the top of the base plate. A cylinder is fixedly connected to the inner cavity of the first fixed column, and a telescopic rod is slidably connected to the inner cavity of one end of the cylinder.

[0008] As a preferred embodiment of the above technical solution, the inner support assembly includes a first connecting plate, which is hinged to the outer surface of the telescopic rod on the side away from the cylinder. An inner support plate is hinged to the end of the first connecting plate away from the telescopic rod, and the surface of the inner support plate is provided with a coating for increasing friction.

[0009] As a preferred embodiment of the above technical solution, the inner support plate is hinged to two sets of second connecting plates at one end near the first connecting plate, and the two sets of second connecting plates are hinged to the outer surface of the cylinder. The inner support plate is symmetrically arranged in three sets, and all of them are hinged to the outer surface of the cylinder through the connecting plates.

[0010] As a preferred embodiment of the above technical solution, the detection mechanism includes a second fixed column, which is fixedly connected to the top of the base plate on the side away from the first fixed column. A first connecting column is fixedly connected to the inner cavity of the second fixed column, and a motor is fixedly connected to the inner cavity of the first connecting column. A rotating shaft is rotatably connected to one side of the motor.

[0011] As a preferred embodiment of the above technical solution, a third fixing post is fixedly connected to the surface of the motor near the rotating shaft, and an external gear ring is fixedly connected to the end of the third fixing post away from the motor, wherein the inner diameter of the external gear ring is larger than the inner diameter of the wheel rim mold.

[0012] As a preferred embodiment of the above technical solution, a turntable is fixedly connected to the outer surface of the rotating shaft, a second connecting column is fixedly connected to the end of the turntable away from the motor, and the second connecting column and the turntable are eccentrically arranged, an internal gear is fixedly connected to the end of the second connecting column away from the turntable, and a detector is fixedly connected to the center of the end of the internal gear away from the second connecting column.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention incorporates an internal support mechanism. During airtightness testing of the wheel rim mold, the mold is first placed between the internal support mechanism and the testing mechanism, with the internal support mechanism positioned inside the mold. The power unit is then activated, and the cylinder begins operation, driving the telescopic rod to extend outwards. As the telescopic rod extends, it pushes the internal support plates outwards via the first connecting plate. Simultaneously, the second connecting plate rotates, guiding and supporting the movement of each internal support plate until the outer surfaces of the three sets of internal support plates are in close contact with the inner wall of the wheel rim mold. At this point, the coating on the surface of the internal support plates increases friction, firmly supporting the wheel rim mold and preventing it from moving during the testing process.

[0015] Based on the aforementioned beneficial effects, this utility model includes a detection mechanism. A motor drives a rotating shaft, which in turn drives a turntable. Because the second connecting column is eccentrically positioned relative to the turntable, the second connecting column rotates in a circular motion as the turntable rotates. This causes the internal gear to revolve around the external gear ring connected to the third fixed column. Simultaneously, due to the meshing of the internal gear and the external gear ring, the internal gear also rotates on its own axis during this revolution. The detector at one end of the internal gear moves omnidirectionally around the outer side of the wheel rim mold along with the internal gear's revolution and rotation, performing airtightness testing on various parts of the wheel rim mold. During the testing process, the inner support mechanism maintains stable support for the wheel rim mold, ensuring that the mold's position does not change and that the detector can accurately detect any leaks, thus completing the airtightness test of the entire wheel rim mold product. After the test, the motor stops, the cylinder drives the telescopic rod to retract, and the first connecting plate pulls the inner support plate inward, releasing the support for the wheel rim mold, allowing the tested wheel rim mold to be removed. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a wheel rim mold product airtightness testing device;

[0017] Figure 2 A disassembly diagram of the internal support mechanism and the testing mechanism of an airtightness testing device for wheel rim mold products;

[0018] Figure 3 A schematic diagram of the connection of the first fixed column of the internal support mechanism of a wheel rim mold product airtightness testing device;

[0019] Figure 4 This is a schematic diagram of the connection of the second fixed column of the testing mechanism of an airtightness testing device for wheel rim mold products.

[0020] In the diagram: 1. Base plate; 2. Internal support mechanism; 21. First fixed column; 22. Cylinder; 23. Telescopic rod; 24. First connecting plate; 25. Internal support plate; 26. Coating; 27. Second connecting plate; 3. Detection mechanism; 31. Second fixed column; 32. First connecting column; 33. Motor; 34. Rotating shaft; 35. Third fixed column; 36. External gear ring; 37. Turntable; 38. Second connecting column; 39. Internal gear; 310. Detector. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution: an airtightness testing device for wheel rim mold products, including a base plate 1 for supporting the upper part, an inner support mechanism 2 for supporting different wheel rim molds is fixedly arranged on one side of the top of the base plate 1, the inner support mechanism 2 includes a power component for adjusting the inner support spacing and an inner support component for providing inner support for different wheel rim molds, and a testing mechanism 3 for testing different wheel rim molds is fixedly arranged on the side of the top of the base plate 1 away from the inner support mechanism 2.

[0023] The base plate 1 serves as the fundamental support, ensuring the stability of the entire device structure and providing a reliable platform for subsequent testing. The inner support mechanism 2 consists of a power component and an inner support component. The power component can flexibly adjust the spacing of the inner supports, while the inner support component can adapt to and securely support wheel rim molds of different sizes, achieving compatibility with various wheel rim mold specifications and greatly improving the versatility of the device. On the other side of the base plate 1, the testing mechanism 3 can test different wheel rim molds fixed by the inner supports. The overall structure has a clear division of labor and coordinated operation, ensuring the stability of the wheel rim molds during the testing process and efficiently completing the airtightness test of different wheel rim molds, thus improving the efficiency and applicability of the testing work.

[0024] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the power assembly includes a first fixed column 21, which is fixedly connected to the top of the base plate 1 on one side. A cylinder 22 is fixedly connected to the inner cavity of the first fixed column 21, and a telescopic rod 23 is slidably connected to the inner cavity of one end of the cylinder 22.

[0025] The first fixed column 21 provides a stable mounting base for the cylinder 22, ensuring that the cylinder 22 will not shake during operation, thereby guaranteeing the stability of subsequent internal support operations. The cylinder 22 drives the telescopic rod 23 to extend and retract. This power transmission method is responsive and stable, and can precisely control the extension and retraction of the telescopic rod 23, providing a reliable power source for adjusting the internal support spacing of the internal support assembly.

[0026] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the inner support assembly includes a first connecting plate 24, which is hinged to the outer surface of the telescopic rod 23 on the side away from the cylinder 22. An inner support plate 25 is hinged to the end of the first connecting plate 24 away from the telescopic rod 23. The surface of the inner support plate 25 is provided with a coating 26 for increasing friction.

[0027] The first connecting plate 24 transmits the telescopic movement of the telescopic rod 23 to the inner support plate 25, enabling the inner support plate 25 to open and close. The coating 26 on the surface of the inner support plate 25 increases the friction between it and the inner wall of the wheel rim mold, effectively preventing the wheel rim mold from sliding or shifting during the inspection process, thus ensuring the accuracy of the inspection. At the same time, the coating 26 also provides some protection to the inner wall of the wheel rim mold, preventing scratches caused by direct contact between the inner support plate 25 and the mold.

[0028] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the inner support plate 25 is hinged to one end near the first connecting plate 24 with two sets of second connecting plates 27, and the two sets of second connecting plates 27 are hinged to the outer surface of the cylinder 22. The inner support plate 25 is symmetrically arranged with three sets, and all of them are hinged to the outer surface of the cylinder 22 through connecting plates.

[0029] Two sets of second connecting plates 27 are hinged to one end of the inner support plate 25 near the first connecting plate 24, and the two sets of second connecting plates 27 are hinged to the outer surface of the cylinder 22. This structural design makes the opening and closing movement of the inner support plate 25 more stable and coordinated. The three sets of circumferentially symmetrical inner support plates 25 are hinged to the outer surface of the cylinder 22 through connecting plates, which can evenly apply support force from inside the wheel rim mold, ensuring that the wheel rim mold maintains a stable shape during the inspection process and avoiding mold deformation due to uneven force, which would affect the inspection results.

[0030] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the detection mechanism 3 includes a second fixed column 31, which is fixedly connected to the top of the base plate 1 on the side away from the first fixed column 21. The inner cavity of the second fixed column 31 is fixedly connected to a first connecting column 32, and the inner cavity of the first connecting column 32 is fixedly connected to a motor 33. One side of the motor 33 is rotatably connected to a rotating shaft 34.

[0031] The second fixed column 31 provides solid support for the entire detection mechanism 3, ensuring the stability of the mechanism during the detection process. The first connecting column 32 fixes the motor 33 inside the second fixed column 31, making the installation of the motor 33 more secure. The motor 33 drives the rotating shaft 34 to rotate, providing power for the rotational movement of the detection mechanism 3. This power method makes it easy to control the speed, and the rotational speed can be adjusted according to the detection requirements, improving the flexibility of the detection.

[0032] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, a third fixing post 35 is fixedly connected to one end of the motor 33 near the rotating shaft 34, and an external gear ring 36 is fixedly connected to the other end of the third fixing post 35 away from the motor 33. The inner diameter of the external gear ring 36 is larger than the inner diameter of the wheel rim mold.

[0033] The third fixed post 35 is fixedly connected to one end surface of the motor 33 near the rotating shaft 34. The third fixed post 35 is connected to the external gear ring 36. The inner diameter of the external gear ring 36 is larger than the inner diameter of the wheel rim mold, which leaves enough space for the placement and inspection of the wheel rim mold. At the same time, the external gear ring 36 also provides a mating basis for the subsequent transmission of the internal gear 39.

[0034] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, a turntable 37 is fixedly connected to the outer surface of the rotating shaft 34. A second connecting post 38 is fixedly connected to the end of the turntable 37 away from the motor 33, and the second connecting post 38 and the turntable 37 are eccentrically arranged. An internal gear 39 is fixedly connected to the end of the second connecting post 38 away from the turntable 37. A detector 310 is fixedly connected to the center of the end of the internal gear 39 away from the second connecting post 38.

[0035] The rotating shaft 34 drives the turntable 37 to rotate. Since the second connecting column 38 is eccentrically positioned with the turntable 37, the rotation of the turntable 37 causes the second connecting column 38 to rotate in a circular motion, which in turn causes the internal gear 39 to revolve around the external gear ring 36. At the same time, the internal gear 39 meshes with the external gear ring 36 and also rotates on its own axis during the revolution. This motion allows the detector 310 at one end of the internal gear 39 to perform all-round and multi-angle inspection of the wheel rim mold, ensuring no blind spots in the inspection and improving the comprehensiveness and accuracy of the airtightness inspection.

[0036] Working Principle: When performing airtightness testing on wheel rim mold products, the wheel rim mold is first placed between the inner support mechanism 2 and the testing mechanism 3, with the inner support mechanism 2 located inside the wheel rim mold. The power assembly is activated, and cylinder 22 begins operation, driving the telescopic rod 23 to extend outwards. As the telescopic rod 23 extends, it pushes the inner support plates 25 outwards via the first connecting plate 24. Simultaneously, the second connecting plate 27 rotates, guiding and supporting the movement of each inner support plate 25 until the outer surfaces of the three sets of inner support plates 25 are in close contact with the inner wall of the wheel rim mold. At this point, the coating 26 on the surface of the inner support plates 25 increases friction, firmly supporting the wheel rim mold and preventing it from moving during the testing process.

[0037] Next, the motor 33 of the detection mechanism 3 is started. The motor 33 drives the rotating shaft 34 to rotate, and the rotating shaft 34 drives the turntable 37 to rotate together. Since the second connecting column 38 is eccentrically set with the turntable 37, when the turntable 37 rotates, the second connecting column 38 will make a circular motion, thereby driving the internal gear 39 to revolve around the external gear ring 36 connected to the third fixed column 35. At the same time, because the internal gear 39 and the external gear ring 36 are meshed with each other, the internal gear 39 will also rotate on its own axis during the revolution. The detector 310 at one end of the internal gear 39 can move in all directions around the outside of the wheel rim mold with the revolution and rotation of the internal gear 39, and perform air tightness testing on various parts of the wheel rim mold. During the testing process, the inner support mechanism 2 always maintains a stable support for the wheel rim mold, ensuring that the wheel rim mold does not change position, and ensuring that the detector 310 can accurately detect whether there are any air leaks in the wheel rim mold, thus completing the air tightness testing of the entire wheel rim mold product. After the inspection is completed, the motor 33 stops working, the cylinder 22 drives the telescopic rod 23 to retract, and the inner support plate 25 is pulled inward through the first connecting plate 24 to release the support on the wheel rim mold, so that the wheel rim mold that has been inspected can be removed.

[0038] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A device for testing the air tightness of wheel rim mold products, characterized in that: The system includes a base plate (1) for supporting the upper part, and an inner support mechanism (2) for supporting different wheel rim molds is fixedly installed on one side of the top of the base plate (1). The inner support mechanism (2) includes a power component for adjusting the inner support spacing and an inner support component for supporting different wheel rim molds. A detection mechanism (3) for detecting different wheel rim molds is fixedly installed on the side of the top of the base plate (1) away from the inner support mechanism (2).

2. The airtightness testing device for wheel rim mold products according to claim 1, characterized in that: The power assembly includes a first fixed column (21), which is fixedly connected to the top of the base plate (1) on one side. A cylinder (22) is fixedly connected to the inner cavity of the first fixed column (21), and a telescopic rod (23) is slidably connected to the inner cavity of one end of the cylinder (22).

3. The airtightness testing device for wheel rim mold products according to claim 1, characterized in that: The inner support assembly includes a first connecting plate (24), which is hinged to the outer surface of the telescopic rod (23) away from the cylinder (22). An inner support plate (25) is hinged to one end of the first connecting plate (24) away from the telescopic rod (23). The surface of the inner support plate (25) is provided with a coating (26) for increasing friction.

4. The airtightness testing device for wheel rim mold products according to claim 3, characterized in that: Two sets of second connecting plates (27) are hinged to one end of the inner support plate (25) near the first connecting plate (24), and the two sets of second connecting plates (27) are hinged to the outer surface of the cylinder (22). The inner support plate (25) is symmetrically arranged in three sets, and all of them are hinged to the outer surface of the cylinder (22) through the connecting plate.

5. The airtightness testing device for wheel rim mold products according to claim 1, characterized in that: The detection mechanism (3) includes a second fixed column (31), which is fixedly connected to the top of the base plate (1) on the side away from the first fixed column (21). The inner cavity of the second fixed column (31) is fixedly connected to a first connecting column (32), and the inner cavity of the first connecting column (32) is fixedly connected to a motor (33). One side of the motor (33) is rotatably connected to a rotating shaft (34).

6. The airtightness testing device for wheel rim mold products according to claim 5, characterized in that: A third fixing post (35) is fixedly connected to one end of the motor (33) near the rotating shaft (34). An external gear ring (36) is fixedly connected to the end of the third fixing post (35) away from the motor (33), and the inner diameter of the external gear ring (36) is larger than the inner diameter of the wheel rim mold.

7. The airtightness testing device for wheel rim mold products according to claim 6, characterized in that: A turntable (37) is fixedly connected to the outer surface of the rotating shaft (34). A second connecting post (38) is fixedly connected to the end of the turntable (37) away from the motor (33), and the second connecting post (38) and the turntable (37) are eccentrically arranged. An internal gear (39) is fixedly connected to the end of the second connecting post (38) away from the turntable (37), and a detector (310) is fixedly connected to the center of the end of the internal gear (39) away from the second connecting post (38).

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