A system for detecting corrosion resistance of aluminum alloy rod
By designing an adjustable clamping mechanism and a motor-driven aluminum alloy bar inspection system, the problem of fixing bars of different sizes was solved, achieving efficient and accurate corrosion resistance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG WANJI ALUMINUM PROCESSING CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, it is difficult to fix aluminum alloy bars of different sizes when clamping them, which makes inspection inconvenient.
A clamping mechanism was designed, including components such as mounting block, clamping groove, telescopic groove, clamping block, connecting block, slide rail groove, lead screw and limiting ring. Through the cooperation of lead screw and limiting ring, adjustable clamping of bars of different sizes can be achieved. Combined with motor-driven bar rotation and salt spray nozzle to simulate salt and alkali environment for testing.
It achieves stable clamping of bars of different sizes, improves inspection efficiency and accuracy, and shortens inspection time.
Smart Images

Figure CN224456527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing systems, and in particular to a corrosion resistance testing system for aluminum alloy bars. Background Technology
[0002] Testing systems play a vital role in various fields of modern society. Their core function is to ensure safety, improve efficiency, and reduce risks through real-time monitoring, data analysis, and anomaly identification. Aluminum alloy bar corrosion resistance testing systems play a crucial role in industrial production and materials applications. Their core objective is to assess the corrosion resistance of materials, ensuring product quality, extending service life, and meeting industry standards. Testing the corrosion resistance of aluminum alloy bars under specific environments (such as salt spray, humid heat, and acid / alkali conditions) eliminates substandard products. Feedback from the test results allows for optimization of alloy composition, heat treatment, or surface treatment processes. Corrosion testing systems simulate long-term environmental exposure (such as salt spray tests and cyclic corrosion tests) to assess material service life, identify corrosion types, and provide a basis for design improvements.
[0003] Chinese Patent CN218567266U discloses a bar testing device that uses an ultrasonic probe to reciprocate along the X-axis to perform all-round testing on the surface of the bar on the rotating mechanism. However, when clamping aluminum alloy bars, it is inconvenient to clamp and fix bars of different sizes. In view of this, an aluminum alloy bar corrosion resistance testing system is provided. Utility Model Content
[0004] The main objective of this invention is to provide a corrosion resistance testing system for aluminum alloy bars, in order to solve the problem in related technologies where it is inconvenient to clamp and fix bars of different sizes when holding aluminum alloy bars.
[0005] To achieve the above objectives, according to one aspect of the present invention, a corrosion resistance testing system for aluminum alloy bars is provided, comprising a housing, a test chamber inside the housing, a cover inserted into the slot of the test chamber, a rotating groove a on the lower surface of the cover, and a clamping mechanism rotatably mounted in the rotating groove a. The clamping mechanism includes at least a mounting block, a clamping groove extending through the side wall of the mounting block, and a plurality of telescopic grooves on the arc wall of the clamping groove. A clamping block is slidably mounted in the telescopic groove, and the bar is clamped by the clamping block.
[0006] Furthermore, the clamping mechanism also includes a connecting block, which is rotatably installed in the rotating groove a. Several slide rail grooves are symmetrically opened on the lower surface of the connecting block, and a lead screw is rotatably installed in the slide rail groove. The lead screw is a multi-segment reverse lead screw.
[0007] Furthermore, a motor is fixedly installed at the center of the upper surface of the cover, and the motor output shaft passes through the cover and is fixedly connected to the center of the upper surface of the connecting block.
[0008] Furthermore, a connecting rod is fixedly installed at the arc wall of the mounting block, and a screw nut is fixedly installed on the upper surface of the connecting rod. The screw nut is snapped into the slide rail groove, and the screw nut is threadedly engaged with the screw.
[0009] Furthermore, a rotating groove b is provided inside the mounting block, and an expansion groove connects to the rotating groove b. A connecting groove connecting to the rotating groove b is provided on the outer arc wall of the mounting block, and a limit ring is rotatably installed inside the rotating groove b.
[0010] Furthermore, several mounting slots are symmetrically opened on the inner sidewall of the telescopic groove. A spring is fixedly installed in the mounting slot, and the other end of the spring is fixedly connected to the clamping block. One side of the clamping block has a concave arc-shaped structure, and a protrusion b is fixedly installed on the other side of the clamping block.
[0011] Furthermore, several protrusions a are fixedly installed on the inner arc wall of the limiting ring, and a push handle is fixedly installed on the outer arc wall of the limiting ring. The push handle is slidably engaged in the connecting groove, and a fixing screw hole is opened through the surface of the push handle. A fixing bolt is installed in the thread of the fixing screw hole.
[0012] Several salt spray nozzles are fixedly installed at the bottom of the test chamber, and the salt spray nozzles are tilted upwards towards the center of the test chamber.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The corrosion resistance testing system for aluminum alloy bars is equipped with a clamping mechanism, which includes at least a mounting block. A clamping groove is formed through the side wall of the mounting block. Several telescopic grooves are formed in a ring array on the arc wall of the clamping groove. The clamping block is slidably installed in the telescopic groove. One side of the clamping block has an arc-shaped structure, and a protrusion b is fixedly installed on the other side of the clamping block. A rotating groove b is formed in the mounting block and connects to the telescopic groove. A limit ring is rotatably installed in the rotating groove b. Several protrusions a are fixedly installed on the arc wall of the limit ring. The arc wall of protrusion a is in close contact with the side wall of protrusion b. When the limit ring is rotated, protrusion a pushes protrusion b, thereby pushing the clamping block to move into the clamping groove, thus clamping bars of different sizes.
[0015] 2. This aluminum alloy bar corrosion resistance testing system is equipped with a connecting block. Several slide rail grooves are symmetrically opened on the lower surface of the connecting block. The clamping mechanism slides along the slide rail groove via a lead screw nut. A lead screw is rotatably installed in the slide rail groove. The lead screw is a multi-segment reverse lead screw. One end of the lead screw passes through the connecting block and is exposed to the outside. The lead screw nut is threadedly engaged with the lead screw. Rotating the lead screw adjusts the distance between the clamping mechanisms on both sides to clamp bars of different lengths. Salt spray is sprayed onto the bars through a salt spray nozzle to simulate a saline-alkali environment and test the corrosion resistance of the bars. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the detection system in a preferred embodiment of the present invention;
[0017] Figure 2 This is a schematic cross-sectional view of the shell structure in a preferred embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the clamping mechanism in a preferred embodiment of the present invention;
[0019] Figure 4 This is a schematic cross-sectional view of the slide rail groove in a preferred embodiment of the present invention;
[0020] Figure 5 This is a schematic diagram of the mounting block structure in a preferred embodiment of the present invention;
[0021] Figure 6 This is a cross-sectional view of the mounting block in a preferred embodiment of the present invention;
[0022] Figure 7 This is a cross-sectional view of the rotating groove b in a preferred embodiment of the present invention.
[0023] Figure 8 This is a schematic diagram of the limiting ring structure in a preferred embodiment of the present invention;
[0024] Figure 9 This is a cross-sectional view of the clamping mechanism in a preferred embodiment of the present invention.
[0025] Figure label:
[0026] 1. Housing; 11. Test chamber; 12. Salt spray nozzle;
[0027] 2. Cover; 21. Motor; 22. Rotating slot a;
[0028] 3. Clamping mechanism; 31. Connecting block; 32. Mounting block; 33. Clamping groove; 34. Rotating groove b; 35. Limiting ring; 36. Clamping block; 311. Slide rail groove; 312. Lead screw; 321. Connecting rod; 322. Lead screw nut; 341. Connecting groove; 342. Telescopic groove; 343. Mounting groove; 351. Protrusion a; 352. Push handle; 353. Fixing screw hole; 361. Protrusion b; 362. Spring. Detailed Implementation
[0029] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0030] This embodiment provides a corrosion resistance testing system for aluminum alloy bars, including a housing 1. The housing 1 has a test chamber 11, and a cover 2 is inserted into the slot of the test chamber 11. A rotating groove a22 is formed on the lower surface of the cover 2. The system also includes a clamping mechanism 3, which is rotatably installed within the rotating groove a22. The clamping mechanism 3 includes at least a mounting block 32. A clamping groove 33 is formed through the side wall of the mounting block 32. Several telescopic grooves 342 are formed on the arc wall of the clamping groove 33. A clamping block 36 is slidably installed within the telescopic groove 342, and the bar is clamped by the clamping block 36.
[0031] like Figure 1 , Figure 2 , Figure 5 As shown, the clamping mechanism 3 also includes a connecting block 31, which is rotatably installed in the rotating groove a22. Several slide rail grooves 311 are symmetrically opened on the lower surface of the connecting block 31. A lead screw 312 is rotatably installed in the slide rail groove 311. An adjustment hole is opened on one side wall of the connecting block 31. One end of the lead screw 312 passes through the connecting block 31 and is located in the adjustment hole. The lead screw 312 is adjusted by inserting a wrench into the adjustment hole. The lead screw 312 is a multi-segment reverse lead screw. The lead screw 312 is centered on the middle of the connecting block 31, and the spiral directions of the two ends of the lead screw 312 are opposite. When the lead screw 312 is rotated, the movement direction of the clamping mechanism 3 is opposite, so as to adjust the distance between the two clamping mechanisms 3.
[0032] like Figure 1 , Figure 2 As shown, a motor 21 is fixedly installed at the center of the upper surface of the cover 2. The output shaft of the motor 21 passes through the cover 2 and is fixedly connected to the center of the upper surface of the connecting block 31. The motor 21 provides power to the connecting block 31 to drive the connecting block 31 to rotate, thereby driving the rod to rotate, so that the surface of the rod can fully contact the salt spray, thereby reducing the time required for corrosion testing and speeding up the testing.
[0033] like Figure 3 , Figure 4 As shown, a connecting rod 321 is fixedly installed on the arc wall of the mounting block 32. A screw nut 322 is fixedly installed on the upper surface of the connecting rod 321. The screw nut 322 is snapped into the slide rail groove 311. The screw nut 322 and the screw 312 are threadedly engaged. Rotating the screw 312 drives the screw nut 322 to move, thereby adjusting the distance between the two mounting blocks 32 to clamp bars of different lengths.
[0034] like Figure 5 , Figure 6 , Figure 7As shown, a rotating groove b34 is provided in the mounting block 32, and a telescopic groove 342 is connected to the rotating groove b34. A connecting groove 341 is provided on the outer arc wall of the mounting block 32, which is connected to the rotating groove b34. A limit ring 35 is rotatably installed in the rotating groove b34.
[0035] like Figure 7 , Figure 9 As shown, several mounting slots 343 are symmetrically opened on the inner side wall of the telescopic groove 342. A spring 362 is fixedly installed in the mounting slot 343. The other end of the spring 362 is fixedly connected to the clamping block 36. One side of the clamping block 36 has a concave arc-shaped structure, and a protrusion b361 is fixedly installed on the other side of the clamping block 36. The arc surface of one side of the clamping block 36 fits against the arc surface of the bar to facilitate fixing the bar and prevent damage to the surface of the bar during clamping.
[0036] like Figure 6 , Figure 8 As shown, several protrusions a351 are fixedly installed on the inner arc wall of the limiting ring 35, and a push handle 352 is fixedly installed on the outer arc wall of the limiting ring 35. The push handle 352 is slidably engaged in the connecting groove 341. A fixing screw hole 353 is opened through the surface of the push handle 352. A fixing bolt is installed in the thread of the fixing screw hole 353. Tightening the fixing bolt in the fixing screw hole 353 tightens the arc wall of the mounting block 32 to fix the position of the limiting ring 35. By pushing the push handle 352, the limiting ring 35 is rotated. The protrusions a351 of the limiting ring 35 squeeze the protrusions b361 to push the clamping block 36 to move towards the center of the clamping groove 33 to clamp bars of different sizes. At this time, the spring 362 is stretched. When it is necessary to remove the bar, the spring 362 pulls the clamping block 36 to move into the telescopic groove 342 to facilitate the removal of the bar.
[0037] like Figure 2 As shown, several salt spray nozzles 12 are fixedly installed at the bottom of the test chamber 11. The salt spray nozzles 12 are tilted upward towards the middle of the test chamber 11. Salt water solution is sprayed through the salt spray nozzles 12 to form a suspended salt mist to simulate a saline-alkali environment and accelerate the corrosion test.
[0038] In practical use, the two ends of the bar are inserted into the clamping grooves 33 of the mounting block 32. The lead screw 312 is rotated to drive the lead screw nut 322 to slide along the slide rail groove 311. The lead screw nut 322 drives the mounting block 32 to move through the connecting rod 321 to adjust the distance between the two mounting blocks 32, so as to fix bars of different lengths. The push handle 352 is rotated, and the push handle 352 drives the limiting ring 35 to rotate. Several protrusions a351 on the inner arc wall of the limiting ring 35 and protrusion b361 on one side of the clamping block 36 are connected. When the limiting ring 35 rotates, the protrusion a351 presses against the protrusion b361 to push the clamping block 36 towards the center of the clamping groove 33. The arc surface on one side of the clamping block 36 fits against the rod to fix rods of different sizes. Salt water solution is sprayed through the salt spray nozzle 12 to form a suspended salt spray to simulate a saline-alkali environment and accelerate the corrosion test. The motor 21 drives the connecting block 31 to rotate, thereby driving the rod to rotate and making the surface of the rod fully contact the salt spray, so as to reduce the time required for corrosion testing and speed up the test.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A system for detecting corrosion resistance of an aluminum alloy rod, comprising a housing (1), characterized in that, The housing (1) has a test chamber (11) inside, and a cover (2) is inserted and installed at the slot of the test chamber (11). The lower surface of the cover (2) has a rotating groove a (22), and it also includes: The clamping mechanism (3) is rotatably installed in the rotating groove a (22). The clamping mechanism (3) includes at least a mounting block (32). A clamping groove (33) is provided through the side wall of the mounting block (32). Several telescopic grooves (342) are provided at the arc wall of the clamping groove (33). A clamping block (36) is slidably installed in the telescopic groove (342). The bar is clamped by the clamping block (36).
2. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein, The clamping mechanism (3) also includes a connecting block (31), which is rotatably installed in the rotating groove a (22). Several slide rail grooves (311) are symmetrically opened on the lower surface of the connecting block (31). A lead screw (312) is rotatably installed in the slide rail groove (311). The lead screw (312) is a multi-segment reverse lead screw.
3. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein, A motor (21) is fixedly installed at the center of the upper surface of the cover (2). The output shaft of the motor (21) passes through the cover (2) and is fixedly connected to the center of the upper surface of the connecting block (31).
4. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein, A connecting rod (321) is fixedly installed on the arc wall of the mounting block (32). A screw nut (322) is fixedly installed on the upper surface of the connecting rod (321). The screw nut (322) is snapped into the slide rail groove (311). The screw nut (322) is threadedly engaged with the screw (312).
5. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein, The mounting block (32) has a rotating groove b (34) inside, and the telescopic groove (342) connects to the rotating groove b (34). The outer arc wall of the mounting block (32) has a connecting groove (341) connecting to the rotating groove b (34). A limit ring (35) is rotatably installed inside the rotating groove b (34).
6. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein The inner wall of the telescopic groove (342) is symmetrically provided with several installation grooves (343). A spring (362) is fixedly installed in the installation groove (343). The other end of the spring (362) is fixedly connected to the clamping block (36). One side of the clamping block (36) is a concave arc structure, and a protrusion b (361) is fixedly installed on the other side of the clamping block (36).
7. The aluminum alloy rod corrosion resistance inspection system of claim 5, wherein, A number of protrusions a (351) are fixedly installed on the inner arc wall of the limiting ring (35), and a push handle (352) is fixedly installed on the outer arc wall of the limiting ring (35). The push handle (352) is slidably engaged in the connecting groove (341). A fixing screw hole (353) is opened through the surface of the push handle (352), and a fixing bolt is installed in the thread of the fixing screw hole (353).
8. The aluminum alloy rod corrosion resistance inspection system of claim 1, wherein, Several salt spray nozzles (12) are fixedly installed at the bottom of the test chamber (11), and the salt spray nozzles (12) are tilted upward towards the middle of the test chamber (11).