A door and window aluminum alloy wear testing machine

Abstract

The utility model discloses a door and window aluminum alloy's wear -resisting testing machine, include: stand, and the stand is the door type frame, and it is connected with sample positioning subassembly, electric push rod, vertical installation in the top of stand, and its output end is downward, crossbeam is fixedly connected with the output of electric push rod, and is driven to go up and down by electric push rod, motor, is fixed on the crossbeam, crank, and one end is fixedly connected with the output shaft of motor, connecting rod, and the free end of crank is hinged with first end. The utility model adopts long -stroke linear friction matching door and window actual wear mode, and the test data can directly guide aluminum alloy selection and process optimization, and it is convenient to dismouting abrasive block, and through spanner screwing stud, can loosen or fasten the clamping plate, and it is convenient to replace the module between two clamping plates, so that the different model aluminum alloy or the installation abrasive block of different material is tested, so as to test the wear resistance of aluminum alloy in different mesh abrasive block.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy technology, and in particular to a wear resistance testing machine for aluminum alloy doors and windows. Background Technology

[0002] In the field of aluminum alloy door and window manufacturing, wear resistance is one of the core indicators for evaluating profile quality. Currently, aluminum alloy wear resistance testing equipment in the industry suffers from the following technical challenges: Friction simulation deviates from actual working conditions: Wear on aluminum alloy doors and windows mainly originates from linear friction during repeated opening and closing, but existing equipment often uses rotational friction or short-stroke reciprocating motion, failing to realistically simulate usage scenarios; Poor compatibility of grinding blocks: Different types of aluminum alloys require grinding blocks made of different materials (such as rubber, sandpaper, and hard alloys). Traditional equipment requires complete disassembly when changing grinding blocks, which is time-consuming and prone to introducing installation errors. Therefore, there is an urgent need for a wear resistance testing device specifically designed for aluminum alloy profiles, capable of accurately simulating actual friction conditions and adapting to diverse testing needs. Summary of the Invention

[0003] The purpose of this invention is to provide a wear resistance testing machine for aluminum alloy doors and windows in order to solve the above problems. It adopts a long-stroke linear friction matching mode to match the actual wear mode of doors and windows, and has a structure that facilitates the disassembly and assembly of the abrasive blocks.

[0004] This utility model achieves the above objectives through the following technical solutions: A wear resistance testing machine for aluminum alloy doors and windows includes: a stand, which is a gantry frame and is connected to a sample positioning assembly; The electric actuator is vertically mounted on the top of the stand with its output end facing downwards. The crossbeam is fixedly connected to the output end of the electric push rod and is driven to rise and fall by the electric push rod. The motor is fixed to the crossbeam; A crank, one end of which is fixedly connected to the output shaft of the motor; The connecting rod is hinged at its first end to the free end of the crank. The sliding seat is hinged to the second end of the connecting rod; The sliding frame is fixedly connected to the crossbeam by a connector, and the sliding seat slides with the sliding frame to achieve horizontal linear reciprocating motion. The grinding block is detachably connected to the sliding seat.

[0005] Preferably, the sample positioning assembly includes threaded seats fixed to both ends of the plate, a long-stroke stud screwed to the threaded seats, and a positioning plate rotatably connected to the inner end of the long-stroke stud. The two positioning plates clamp or release the sample by screwing the long-stroke stud.

[0006] Preferably, the sliding seat is provided with slide bars on both sides, and the two long sides of the sliding frame are provided with slide grooves that are adapted to the slide bars. The sliding seat achieves horizontal linear reciprocating motion by limiting the movement through the cooperation of the slide bars and slide grooves.

[0007] Preferably, the studs are symmetrical and threadedly connected to both sides of the sliding seat, and the inner end of the studs is rotatably connected to a clamping plate, with the grinding block clamped between the two clamping plates.

[0008] Preferably, the length of the crank is 1 / 3 to 1 / 2 of the length of the connecting rod, so that the reciprocating stroke of the slide is 2 to 3 times the radius of the crank.

[0009] Preferably, the slide groove of the slide frame is embedded with a self-lubricating bushing, and the slide bar is a mouth-shaped protrusion that forms an anti-derailment fit with the slide groove.

[0010] Preferably, the inner side of the clamping plate is provided with anti-slip texture or a removable silicone pad to increase the friction with the grinding block.

[0011] Preferably, the grinding block material includes sandpaper, cemented carbide, or rubber, and the working surface shape of the grinding block is adapted to the cross-sectional profile of the aluminum alloy profile.

[0012] The technical solution provided by this utility model can include the following beneficial effects: 1. Long-stroke linear friction matches the actual wear pattern of doors and windows, and the test data can directly guide the selection of aluminum alloys and process optimization; 2. Easy to disassemble and assemble grinding blocks. The clamping plates can be loosened or tightened by turning the stud with a wrench, making it easy to replace the module between the two clamping plates, so as to test different types of aluminum alloys or install grinding blocks of different materials to test the wear resistance of aluminum alloys with grinding blocks of different mesh sizes.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connecting rod of this utility model; Figure 3 This is a schematic diagram of the structure of the grinding block of this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Upright frame; 2. Electric actuator; 3. Crossbeam; 4. Motor; 5. Crank; 6. Connecting rod; 7. Sliding seat; 8. Connecting piece; 9. Sliding frame; 10. Sliding bar; 11. Clamping plate; 12. Stud; 13. Grinding block; 14. Flat plate; 15. Threaded seat; 16. Long-stroke stud; 17. Positioning plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 This description is provided for the convenience of describing the present invention and for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0018] like Figure 1-3 As shown, an abrasion resistance testing machine for aluminum alloy doors and windows includes: a frame 1, which is a gantry frame that can provide support for the electric push rod 2 to drive the crossbeam 3 to rise and fall, and is connected to a sample positioning assembly; Electric push rod 2 is vertically installed on the top of the stand 1 with its output end facing downwards; The crossbeam 3 is fixedly connected to the output end of the electric push rod 2 and is driven to lift by the electric push rod 2. The crossbeam 3 can support the motor 4 and support the slide frame 9 through the connecting piece 8. Motor 4 is fixed to crossbeam 3; Crank 5, one end of which is fixedly connected to the output shaft of motor 4; Connecting rod 6, the first end of which is hinged to the free end of crank 5; The sliding seat 7 is hinged to the second end of the connecting rod 6. The sliding seat 7 is n-shaped and has a space to accommodate the grinding block 13. The sliding frame 9 is fixedly connected to the crossbeam 3 through the connector 8. The sliding seat 7 and the sliding frame 9 slide together to achieve horizontal linear reciprocating motion. The sliding frame 9 is a rectangular frame with good support stability. The grinding block 13 is detachably connected to the sliding seat 7.

[0019] Preferably, the sample positioning assembly includes threaded seats 15 fixed to both ends of the plate 14, long-stroke studs 16 screwed to the threaded seats 15, and a screw head provided at the end of the long-stroke stud 16 for easy tightening by a wrench. The positioning plate 17 is rotatably connected to the inner end of the long-stroke stud 16. The two positioning plates 17 clamp or release the sample by tightening the long-stroke stud 16. The bottom of the positioning plate 17 slides with the plate 14, which can maintain stability during translation.

[0020] Preferably, the sliding seat 7 is provided with slide bars 10 on both sides, and the two long sides of the sliding frame 9 are provided with slide grooves that are adapted to the slide bars 10. The sliding seat 7 achieves horizontal linear reciprocating motion by limiting the movement through the cooperation of the slide bars 10 and the slide grooves.

[0021] Preferably, the stud 12 is symmetrically and threadedly connected to both sides of the sliding seat 7. The inner end of the stud 12 is rotatably connected to the clamping plate 11. The grinding block 13 is clamped between the two clamping plates 11. The stud 12 has a screw head so that it can be screwed on by a wrench or other tools. The clamping plate 11 slides with the inner side of the sliding seat 7, so that it can remain stable when moving horizontally.

[0022] Preferably, the length of crank 5 is 1 / 3 to 1 / 2 of the length of connecting rod 6, so that the reciprocating stroke of sliding seat 7 is 2 to 3 times the radius of crank 5.

[0023] Preferably, the slide groove of the slide frame 9 is embedded with a self-lubricating bushing, and the slide bar 10 is a mouth-shaped protrusion that forms an anti-derailment fit with the slide groove, and has a stable service life to support the reciprocating movement of the slide seat 7.

[0024] Preferably, the inner side of the clamping plate 11 is provided with anti-slip texture or a removable silicone pad to increase the friction with the grinding block 13 and prevent it from falling or shifting.

[0025] Preferably, the grinding block 13 is made of sandpaper, cemented carbide, or rubber, and the working surface shape of the grinding block 13 is adapted to the cross-sectional profile of the aluminum alloy profile.

[0026] In the above structure, the aluminum alloy material to be tested is placed on the plate 14. The long-stroke stud 16 is screwed on, and its connection with the threaded seat 15 drives the positioning plate 17 to move horizontally, thereby clamping or releasing the aluminum alloy material. After clamping, the electric push rod 2 is activated to extend and retract, which drives the crossbeam 3 to rise and fall, so that the grinding block 13 can contact the aluminum alloy material. Then, the motor 4 is activated to drive the crank 5 to rotate. The rotation of the crank 5 drives the connecting rod 6 and the sliding seat 7 to reciprocate. Then, the grinding block 13 follows the reciprocating motion of the sliding seat 7 and can rub against the aluminum alloy material. The wear resistance of the aluminum alloy material is tested by friction. After the test is completed, the motor 4 is turned off, the electric push rod 2 is activated to retract, raising the grinding block 13. Then, the long-stroke stud 16 is screwed on to drive the two positioning plates 17 to move away from each other, so that the aluminum alloy material can be removed for observation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wear resistance testing machine for aluminum alloy doors and windows, characterized in that, include: The upright frame (1) is a portal frame connected to a sample positioning assembly; An electric push rod (2) is vertically installed on the top of the stand (1), with its output end facing downwards; The crossbeam (3) is fixedly connected to the output end of the electric push rod (2) and is driven to lift by the electric push rod (2); The motor (4) is fixed on the crossbeam (3); The crank (5) is fixedly connected at one end to the output shaft of the motor (4); The first end of the connecting rod (6) is hinged to the free end of the crank (5); The sliding seat (7) is hinged to the second end of the connecting rod (6); The sliding frame (9) is fixedly connected to the crossbeam (3) through the connector (8), and the sliding seat (7) slides with the sliding frame (9) to achieve horizontal linear reciprocating motion; The grinding block (13) is detachably connected to the sliding seat (7).

2. The wear resistance testing machine for aluminum alloy doors and windows according to claim 1, characterized in that: The sample positioning assembly includes a threaded seat (15) fixed at both ends of the plate (14), a long-range stud (16) screwed to the threaded seat (15), and a positioning plate (17) rotatably connected to the inner end of the long-range stud (16). The two positioning plates (17) clamp or release the stud sample by screwing the long-range stud (16).

3. The wear resistance testing machine for aluminum alloy doors and windows according to claim 1, characterized in that: The sliding seat (7) is provided with slide bars (10) on both sides, and the two long sides of the sliding frame (9) are provided with slide grooves that are adapted to the slide bars (10). The sliding seat (7) achieves horizontal linear reciprocating motion by limiting the movement of the slide bars (10) and the slide grooves.

4. The wear resistance testing machine for aluminum alloy doors and windows according to claim 1, characterized in that: The stud (12) is symmetrical and threadedly connected to both sides of the sliding seat (7). The inner end of the stud (12) is rotatably connected to the clamping plate (11), and the grinding block (13) is clamped between the two clamping plates (11).

5. The wear resistance testing machine for aluminum alloy doors and windows according to claim 1, characterized in that: The length of the crank (5) is 1 / 3 to 1 / 2 of the length of the connecting rod (6), so that the reciprocating stroke of the sliding seat (7) is 2 to 3 times the radius of the crank (5).

6. The wear resistance testing machine for aluminum alloy doors and windows according to claim 3, characterized in that: The sliding frame (9) has a self-lubricating bushing embedded in its groove, and the slide bar (10) is a mouth-shaped protrusion that forms an anti-derailment fit with the groove.

7. The wear resistance testing machine for aluminum alloy doors and windows according to claim 4, characterized in that: The inner side of the clamp (11) is provided with anti-slip texture or a removable silicone pad to increase the friction with the grinding block (13).

8. The wear resistance testing machine for aluminum alloy doors and windows according to claim 1, characterized in that: The grinding block (13) is made of sandpaper, hard alloy or rubber, and the working surface shape of the grinding block (13) is adapted to the cross-sectional profile of the aluminum alloy profile.

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