Modular combined aluminum alloy profile multi-sample detection clamp structure

Abstract

The utility model relates to the field of aluminium alloy production technology discloses a modular combined type aluminium alloy sectional material multi -sample detection clamp structure, including base and moving assembly, the top of base is opposite and has set up two moving grooves, the outside both sides of base have set up Y -shaped groove, the both ends of base are provided with U -shaped support, the moving groove all is provided with main square block, the bottom of main square block is set up in moving groove inside, moving assembly sets up Y -shaped groove outside. Through magnetic attraction groove and insert rod quick -change interface, the user can be on the same base, between the square clamp block for square sectional material and the annular clamp for arc sectional material, switch quickly, when needing to detect aluminium alloy sectional material sample of different cross -section shape, reach the purpose of quick switching, and the modular combination of base + replaceable clamp head greatly reduces equipment replacement cost and operation time.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy production technology, and in particular to a modular combined aluminum alloy profile multi-sample testing fixture structure. Background Technology

[0002] Aluminum alloy profiles are widely used in aerospace, rail transportation, and architectural decoration due to their advantages such as light weight, high strength, and corrosion resistance. During the production process, the mechanical properties of aluminum alloy profiles need to be tested, and fixtures are key devices for fixing the samples during testing.

[0003] Currently, traditional testing fixtures are mostly specialized fixtures, with each fixture only suitable for a specific cross-sectional shape of the profile. When testing aluminum alloy profiles with different cross-sectional shapes (such as square, round, and irregular shapes), multiple sets of specialized fixtures are required. This not only increases equipment costs but also makes fixture changes cumbersome and inefficient. Furthermore, traditional fixtures often use a metal-to-metal contact clamping method, which easily creates indentations or scratches on the profile surface, affecting the profile's appearance quality and performance. Therefore, we provide a modular, combined multi-sample testing fixture structure for aluminum alloy profiles to improve upon this approach. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a modular and combined multi-sample testing fixture structure for aluminum alloy profiles. It can quickly adapt to aluminum alloy profiles with different cross-sectional shapes to achieve efficient and non-destructive clamping and testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modular combined aluminum alloy profile multi-sample testing fixture structure, including a base and a moving component. The top of the base has two moving slots facing each other, and Y-shaped slots are formed on both sides of the outer side of the base. U-shaped supports are provided at both ends of the base. A main square block is provided on each of the moving slots. The bottom of the main square block is fitted inside the moving slot. The moving component is located outside the Y-shaped slot. An annular clamp is fitted inside the Y-shaped slot. The moving component penetrates the inner wall of the base and connects to the main square block. A screw is threaded inside the U-shaped support. A secondary square block is provided at one end of the screw that penetrates the U-shaped support. Rubber pads are provided on the surfaces of both the main square block and the secondary square block.

[0006] As a further description of the above technical solution: A support plate is provided at one end of the Y-shaped groove, and support rods are provided at the four corners of the support plate. A hydraulic cylinder is fixedly provided at one end of the support rod, and a U-shaped frame is provided on the other side of the support plate. The driving end of the hydraulic cylinder passes through the support plate and is connected to the U-shaped frame.

[0007] As a further description of the above technical solution: The other end of the U-shaped frame passes through the inner wall of the base and is connected to the main square block. A guide tube is provided at the connection between the base and the U-shaped frame, and the other end of the U-shaped frame passes through the guide tube and is connected to the main square block.

[0008] As a further description of the above technical solution: The main square block has a magnetic groove on its side, and a rod is inserted into the top of the main square block. The bottom of the rod is inserted into the magnetic groove.

[0009] As a further description of the above technical solution: The annular clamp includes a main annular plate, one end of which is provided with a magnetic block. The magnetic block is attracted to the magnetic groove, and the top of the magnetic block is provided with a hole to accommodate the insertion of the plug rod.

[0010] As a further description of the above technical solution: The annular clamp also includes a secondary annular plate and multiple rubber heads. The secondary annular plate is disposed inside the main annular plate, and a connecting spring is disposed between the secondary annular plate and the main annular plate. The rubber heads are disposed outside the secondary annular plate.

[0011] As a further description of the above technical solution: The thickness of the rubber head is the same as that of the sub-annular plate, and the surface of the rubber head is provided with anti-slip texture.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are as follows: In this invention, the magnetic groove and quick-change interface allow users to quickly switch between a square clamp for square profiles and a ring clamp for curved profiles on the same base. This enables rapid switching when testing aluminum alloy profile samples with different cross-sectional shapes is required. Furthermore, the modular combination of the base and the replaceable clamp head greatly reduces equipment replacement costs and operation time.

[0013] In this invention, a dual clamping system combining rigidity and flexibility is constructed by the cooperation of the integral rubber pad on the square block and the distributed rubber heads on the spring floating plate in the annular clamp. When dealing with regular square profiles, the large-area rubber pad provides high friction and anti-slip while dispersing pressure in a surface contact manner to prevent indentation. When dealing with irregular curved profiles, multiple spring-driven independent rubber heads adaptively conform to the contour, transforming the concentrated clamping force into a distributed flexible wrapping force. Under the premise of ensuring a macroscopic clamping force sufficient to prevent sample slippage, non-destructive protection of the aluminum alloy profile surface is achieved. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of a modular combined aluminum alloy profile multi-sample testing fixture proposed in this utility model. Figure 2 This is a three-dimensional view showing the overall structural morphology of a modular combined aluminum alloy profile multi-sample testing fixture proposed in this utility model. Figure 3 This is a top view showing the overall structural changes of a modular combined aluminum alloy profile multi-sample testing fixture structure proposed in this utility model. Figure 4 This is an enlarged view of point A of a modular combined aluminum alloy profile multi-sample testing fixture structure proposed in this utility model.

[0015] Legend: 1. Base; 2. Main square block; 3. Insert rod; 4. Magnetic suction groove; 7. Y-shaped groove; 8. Ring clamp; 81. Main ring plate; 82. Secondary ring plate; 83. Connecting spring; 9. Rubber head; 10. Magnetic block; 11. Support plate; 12. Support rod; 13. Hydraulic cylinder; 14. U-shaped frame; 15. Guide cylinder; 17. U-shaped bracket; 18. Screw; 19. Moving groove; 20. Secondary square block; 21. Rubber pad. Detailed Implementation

[0016] 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.

[0017] like Figure 1 and Figure 2 As shown, this utility model provides a modular, combined aluminum alloy profile multi-sample testing fixture structure, including a rectangular base 1. Two parallel moving grooves 19 are formed on the top surface of the base 1, and the bottoms of two main square blocks 2 are embedded in the moving grooves 19 and can slide along the grooves. Y-shaped grooves 7 are formed on both sides of the base 1, and U-shaped brackets 17 are fixed at both ends. A screw 18 is threaded onto the U-shaped bracket 17, and the inner end of the screw 18 is connected to a secondary square block 20. Rubber pads 21 are attached to the clamping surfaces of both the main square blocks 2 and the secondary square blocks 20.

[0018] The drive unit is located outside the Y-shaped groove 7 of the base 1. Support rod 12 fixes the hydraulic cylinder 13 and support plate 11 together. The piston rod of the hydraulic cylinder 13 passes through the support plate 11 and is connected to a U-shaped frame 14. The other end of the U-shaped frame 14 passes through the guide cylinder 15 on the side wall of the base 1 and is finally connected to the main square block 2. Activating the hydraulic cylinder 13 synchronously drives the two main square blocks 2 to move towards or away from each other within the moving groove 19 via the U-shaped frame 14, achieving clamping and releasing.

[0019] When it is necessary to clamp ordinary flat or square bar specimens, place the specimen between two main square blocks 2, and start the hydraulic cylinder 13 to clamp one end of the specimen; the other end of the specimen is clamped from both sides by rotating the screws 18 on the two U-shaped brackets 17.

[0020] like Figure 1 and Figure 4 As shown, when it is necessary to clamp the annular sample, an annular clamp 8 is required. The annular clamp 8 consists of a main annular plate 81 and a secondary annular plate 82, which are connected by multiple connecting springs 83. Multiple rubber heads 9 with anti-slip textures are installed on the outer side of the secondary annular plate 82. A magnetic block 10 is fixed to one end of the main annular plate 81.

[0021] During installation, remove the ring clamp 8 from the Y-shaped groove 7 of the base 1, align the magnetic block 10 and attach it to the magnetic groove 4 on the side of the main square block 2. Then, insert the insertion rod 3 from the top of the main square block 2, with its lower end passing through the holes on the main square block 2 and the magnetic block 10 in sequence, forming a mechanical interlock to prevent the ring clamp 8 from rotating or falling off when subjected to force.

[0022] When clamping the annular sample, the sample is placed on the outside of the secondary annular plate 82 of the annular clamp 8. When the hydraulic cylinder 13 drives the main square block 2 and the annular clamp 8 to move towards the center, the secondary annular plate 82, under the action of the connecting spring 83, evenly hugs the outer wall of the annular sample through the rubber head 9, forming a flexible, adaptive enveloping clamp, which is very suitable for curved surfaces.

[0023] The implementation principle of this application's modular combined aluminum alloy profile multi-sample testing fixture structure is as follows: When it is necessary to test the mechanical properties of square or rectangular aluminum alloy profiles, firstly, the fixture base 1 is securely installed on the working platform of the material testing machine via its bottom mounting ears. Confirm that the moving assembly is in the released state, with the two main square blocks 2 located at both ends of the moving groove 19. Place the square aluminum alloy profile sample to be tested in the working area of ​​the base 1, positioning it between the two main square blocks 2 and the two secondary square blocks 20. Activate the hydraulic cylinder 13; the piston rod of the hydraulic cylinder 13 pushes the U-shaped frame 14. Guided by the guide cylinder 15, the U-shaped frame 14 drives the two main square blocks 2 to move towards each other along the moving groove 19, applying initial clamping force from both sides of the profile. Subsequently, manually rotate the two screws 18 on the U-shaped bracket 17, driving the two secondary square blocks 20 to move towards the center, clamping from the other two sides of the profile. Through the combination of hydraulic drive and manual fine adjustment, four-point synchronous and stable clamping is achieved. During this process, the rubber pads 21 on the surfaces of the main square block 2 and the secondary square block 20 form a large-area surface contact with the profile surface. The rubber pads 21 provide sufficient static friction to effectively prevent the sample from slipping during tension or compression. On the other hand, their elastic deformation characteristics disperse the clamping pressure, completely avoiding indentations or scratches on the profile surface. This is especially suitable for profiles whose surfaces have undergone fine treatments such as anodizing and spraying.

[0024] When testing aluminum alloy profiles with curved, circular, or other irregular cross-sections (such as pipes and irregularly shaped decorative materials), firstly, the annular clamp 8 is removed from the Y-shaped grooves 7 on both sides of the base 1. Then, the magnetic block 10 at one end of the annular clamp 8 is aligned and inserted into the magnetic groove 4 on the side of the main square block 2, achieving initial positioning through magnetic force. Next, the insertion rod 3 is inserted through the pre-drilled hole at the top of the main square block 2, so that its bottom passes through the magnetic groove 4 and is inserted into the hole at the top of the magnetic block 10, forming a mechanical lock and completing the rigid connection between the annular clamp 8 and the main square block 2. The irregularly shaped aluminum alloy profile sample is then placed in the central area of ​​the annular clamp 8. The sub-annular plate 82 inside the annular clamp 8 undergoes adaptive floating under the action of multiple connecting springs 83. Multiple independent rubber heads 9 on the outer side of the sub-annular plate 82 automatically adjust the contact angle and pressure according to the contour of the sample, forming a distributed flexible wrapping. This "multi-point adaptive" clamping method can not only achieve a tight fit to irregular contours and provide uniform and sufficient clamping force, but also ensure that the surface of the profile, especially sensitive parts such as protrusions and edges, is not damaged through the elastic contact of the rubber head 9. Then, the hydraulic cylinder 13 is activated, and the driving force is directly transmitted to the ring clamp 8 through the U-shaped frame 14, so that the irregular sample can be firmly clamped in preparation for subsequent mechanical property testing.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. A modular, combined aluminum alloy profile multi-sample testing fixture structure, characterized in that, The device includes a base (1) and a moving component. The top of the base (1) has two moving slots (19) facing each other. Y-shaped slots (7) are provided on the outer sides of the base (1). U-shaped brackets (17) are provided at both ends of the base (1). A main square block (2) is provided on each of the moving slots (19). The bottom of the main square block (2) is fitted inside the moving slot (19). The moving component is located outside the Y-shaped slot (7). A ring clamp (8) is fitted inside the Y-shaped slot (7). The moving component passes through the inner wall of the base (1) and is connected to the main square block (2). A screw (18) is threaded inside the U-shaped bracket (17). A secondary square block (20) is provided at one end of the screw (18) that passes through the U-shaped bracket (17). Rubber pads (21) are provided on the surfaces of the main square block (2) and the secondary square block (20).

2. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 1, characterized in that: A support plate (11) is provided at one end of the Y-shaped groove (7), and support rods (12) are provided at the four corners of the support plate (11). A hydraulic cylinder (13) is fixedly provided at one end of the support rod (12), and a U-shaped frame (14) is provided on the other side of the support plate (11). The driving end of the hydraulic cylinder (13) passes through the support plate (11) and is connected to the U-shaped frame (14).

3. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 2, characterized in that: The other end of the U-shaped frame (14) passes through the inner wall of the base (1) and is connected to the main square block (2). A guide tube (15) is provided at the connection between the base (1) and the U-shaped frame (14). The other end of the U-shaped frame (14) passes through the guide tube (15) and is connected to the main square block (2).

4. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 3, characterized in that: The main square block (2) has a magnetic groove (4) on its side, and a rod (3) is inserted into the top of the main square block (2). The bottom of the rod (3) is inserted into the magnetic groove (4).

5. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 4, characterized in that: The annular clamp (8) includes a main annular plate (81), one end of which is provided with a magnetic block (10). The magnetic block (10) is attracted to the magnetic groove (4), and the top of the magnetic block (10) is provided with a hole for accommodating the insertion rod (3).

6. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 5, characterized in that: The annular clamp (8) also includes a secondary annular plate (82) and a plurality of rubber heads (9). The secondary annular plate (82) is disposed on the inner side of the main annular plate (81), and a connecting spring (83) is disposed between the secondary annular plate (82) and the main annular plate (81). The rubber heads (9) are disposed on the outer side of the secondary annular plate (82).

7. The modular combined aluminum alloy profile multi-sample testing fixture structure according to claim 6, characterized in that: The thickness of the rubber head (9) is the same as the thickness of the sub-annular plate (82), and the surface of the rubber head (9) is provided with anti-slip texture.

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