A slide friction testing machine with a die assembly mechanism

Abstract

The utility model discloses a kind of mould closing mechanisms for sliding friction testing machine, including base and control cabinet being set on base, the weight rod is provided above mounting piece, the weight is sleeved on the weight rod, the fixture is provided at mounting piece bottom, two parallel sliding grooves are horizontally provided on the base, three pairs of fixed blocks are provided in the sliding groove, connecting rod is provided between each pair of fixed block bottom, guide slide bar is respectively provided at the both ends of connecting rod, side slide bar is provided between the top of fixed block, two side pressing mechanisms are respectively provided on both sides of side slide bar, two intermediate pressing mechanisms are provided on the middle of side slide bar, the mould closing mechanism for sliding friction testing machine can be adjusted according to different sizes of material to be measured, meanwhile, the mechanism does not need to be fixed by screw, the process of repeatedly disassembling and assembling screw is saved, the work of sliding friction test is simplified, and test efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sliding friction testing equipment, specifically relating to a mold closing mechanism for a sliding friction testing machine. Background Technology

[0002] A sliding friction tester is a device used for scientific research and industrial testing. Its core function is to simulate and measure the friction and wear generated when two contacting objects slide relative to each other. Sliding friction testers are usually equipped with a clamping mechanism, which can stably clamp and fix the sample during the test, ensuring the accuracy and repeatability of the test results. In sliding friction testing, two samples are usually pressed together with specific pressure and contact methods, and made to slide relative to each other to simulate the friction behavior in actual working conditions, thereby determining the coefficient of friction and wear rate.

[0003] However, the existing sliding friction testing machine's clamping mechanism usually fixes the fixing parts in the mounting holes on the base with screws, thereby fixing the test sample. This fixing method often requires frequent disassembly and installation of screws when changing samples of different sizes, which is time-consuming and labor-intensive, reducing the efficiency of the test. Utility Model Content

[0004] The purpose of this utility model is to provide a mold clamping mechanism for a sliding friction testing machine, so as to solve the problem mentioned in the background art that the existing mold clamping mechanism of the sliding friction testing machine usually fixes the fixing part in the mounting hole on the base with screws to fix the test sample. However, this fixing method often requires frequent disassembly and installation of screws when changing samples of different sizes, which is time-consuming, labor-intensive, and reduces the efficiency of testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold clamping mechanism for a sliding friction testing machine, comprising a base and a control box disposed on the base; The control box is equipped with a cover plate and a control console. The front of the control box has two telescopic push plates, an adjustment plate, and an installation component. A fixing screw is provided between the installation component and the adjustment plate. A weight rod is provided above the installation component, and a weight is fitted on the weight rod. A clamp is provided at the bottom of the installation component, and a glass block is held in the clamp. The base has two parallel sliding grooves arranged horizontally. Inside each sliding groove are three pairs of fixing blocks. A connecting rod is provided between the bottoms of each pair of fixing blocks. Guide slide rods are provided at both ends of the connecting rods. Side slide rods are provided between the tops of the fixing blocks. Two side pressing mechanisms are provided on the two side slide rods respectively, and two middle pressing mechanisms are provided on the middle side slide rod.

[0006] Preferably, the intermediate pressing mechanism includes a sliding sleeve, an intermediate support is provided on the sliding sleeve, the intermediate support is welded to the sliding sleeve, and a lead screw is provided between the intermediate support and the sliding sleeve, with both ends of the lead screw being rotatably connected to the intermediate support and the sliding sleeve respectively.

[0007] Preferably, an adjustment knob is provided on the top of the lead screw, the adjustment knob is fixedly connected to the lead screw, a pressing plate is provided on the lead screw, the pressing plate is threadedly connected to the lead screw, and the lead screw can drive the pressing plate to rise and fall when rotating.

[0008] Preferably, vertical slide rods are provided at both ends of the pressing plate, the vertical slide rods are inserted into the pressing plate, and a pressing block is provided at the bottom of the vertical slide rod. The pressing block is fixedly installed to the vertical slide rod by screws, and the pressing block can press and fix the material to be tested.

[0009] Preferably, a spring is provided above the pressing block, the spring is sleeved with the vertical slide rod, and a stop block is provided at the top of the vertical slide rod, the stop block and the vertical slide rod being integrally formed.

[0010] Preferably, the side pressing mechanism also includes a sliding sleeve, on which a side support is provided. The side support is welded to the sliding sleeve. Similarly, a lead screw, an adjusting knob, and a pressing plate are provided on the side support. The pressing plate has a vertical sliding rod, a spring, and a pressing block at only one end.

[0011] Preferably, the sliding sleeve has through holes on both sides, and the side sliding rod also has multiple through holes. The sliding sleeve can slide on the side sliding rod, and a plug can be inserted into the through holes of the sliding sleeve and the side sliding rod to fix the sliding sleeve on the side sliding rod.

[0012] Preferably, both ends of the side slide rod are fixed to the fixing block by screws, the bottom of the fixing block is welded to the connecting rod, both ends of the guide slide rod are fixedly connected to the base, and the connecting rod can slide on the guide slide rod.

[0013] Compared with the prior art, this utility model provides a mold clamping mechanism for a sliding friction testing machine, which has the following advantages: 1. By adjusting the knob, lead screw, pressure plate, vertical slide bar, pressure block, central support, side support, and spring, rotating the adjustment knob can drive the lead screw to rotate, thereby realizing the lifting and lowering adjustment of the pressure plate. When the pressure block contacts the material to be tested, continuing to move the pressure plate downwards can cause the pressure block to compress the spring upwards. With the joint clamping of the pressure plate and the pressure block, the material to be tested is firmly fixed on the base, effectively preventing it from shifting during the sliding friction test.

[0014] 2. Through the design of the sliding sleeve, through hole, side sliding rod and insert rod, the middle pressing mechanism and the side pressing mechanism can slide along the side sliding rod through the sliding sleeve to achieve flexible adjustment of the pressing position. After adjustment, insert rods are inserted into the through holes of the sliding sleeve and the side sliding rod in sequence to lock the pressing mechanism and prevent it from sliding during testing.

[0015] 3. By setting up a fixed block, guide slide rod and sliding groove, the fixed block can move along the guide slide rod with the help of the bottom connecting rod and slide in the sliding groove, thereby driving the side slide rod and the pressing mechanism on it to adjust the position as a whole. This structure allows the pressing mechanism to adapt to materials of different sizes and does not require screw fixing, saving the steps of repeated disassembly and assembly, simplifying the sliding friction test process and effectively improving the test efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the middle pressing mechanism of this utility model.

[0018] Figure 3 This is a schematic diagram of the side pressing mechanism of this utility model.

[0019] Figure 4 This is a schematic diagram of the bottom structure of the base of this utility model.

[0020] In the diagram: 1. Control console; 2. Cover plate; 3. Control box; 4. Fixing screw; 5. Weight rod; 6. Weight; 7. Mounting component; 8. Side slide rod; 9. Fixing block; 10. Sliding groove; 11. Glass block; 12. Clamp; 13. Adjusting plate; 14. Telescopic push plate; 15. Base; 16. Adjusting knob; 17. Lead screw; 18. Vertical slide rod; 19. Spring; 20. Pressing block; 21. Sliding sleeve; 22. Through hole; 23. Pressing plate; 24. Stop block; 25. Central support component; 26. Side support component; 27. Insert rod; 28. Guide slide rod; 29. ​​Connecting rod. Detailed Implementation

[0021] 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.

[0022] This utility model provides, for example Figure 1-4 A mold clamping mechanism for a sliding friction testing machine is shown, including a base 15 and a control box 3 disposed on the base 15; The control box 3 is equipped with a cover plate 2 and a control console 1. The front of the control box 3 is equipped with two telescopic push plates 14. The telescopic push plates 14 are equipped with an adjustment plate 13. The adjustment plate 13 is equipped with a mounting part 7. The mounting part 7 and the adjustment plate 13 are equipped with a fixing screw 4. The mounting part 7 is equipped with a weight rod 5 above it. The weight rod 5 is fitted with a weight 6. The mounting part 7 is equipped with a clamp 12 at the bottom. The clamp 12 holds a glass block 11. The base 15 has two parallel sliding grooves 10 arranged horizontally. Inside the sliding grooves 10, there are three pairs of fixing blocks 9. A connecting rod 29 is arranged between the bottoms of each pair of fixing blocks 9. Guide slide rods 28 are arranged at both ends of the connecting rod 29. Side slide rods 8 are arranged between the tops of the fixing blocks 9. Two side pressing mechanisms are arranged on the two side slide rods 8 respectively, and two middle pressing mechanisms are arranged on the middle side slide rod 8.

[0023] In this embodiment, the sliding friction testing machine is a device used for scientific research and industrial testing. Its core function is to simulate and measure the friction and wear generated when two contacting objects slide relative to each other. The specific usage method is as follows: the device needs to be connected to an external power supply. Then, the glass block 11 can be fixed by the clamp 12. Then, the sample of the material to be tested is fixed on the base 15, and the height of the mounting part 7 is adjusted by adjusting the fixing screw 4 so that the surface of the glass block 11 is just in contact with the surface of the material to be tested. Then, by adding weights 6 to the weight rod 5, pressure is applied to the glass block 11, thereby measuring the friction value and wear under different pressures. After installation, the device can be turned on through the control console 1. The telescopic push plate 14 is reciprocated through the control box 3 to make the glass block 11 perform friction testing on the surface of the material to be tested. Finally, the final test data is displayed through the control console 1.

[0024] like Figure 2 and Figure 3As shown, the intermediate pressing mechanism includes a sliding sleeve 21, on which an intermediate support member 25 is mounted. The intermediate support member 25 is welded to the sliding sleeve 21. A lead screw 17 is positioned between the intermediate support member 25 and the sliding sleeve 21. Both ends of the lead screw 17 are rotatably connected to the intermediate support member 25 and the sliding sleeve 21, respectively. An adjustment knob 16 is mounted on the top of the lead screw 17 and is fixedly connected to the lead screw 17. A pressing plate 23 is mounted on the lead screw 17 and is threadedly connected to the lead screw 17. When the lead screw 17 rotates, it can drive the pressing plate 23 to rise and fall. Vertical slide rods 18 are mounted on both ends of the pressing plate 23 and are inserted into the pressing plate 23. 8. A pressing block 20 is provided at the bottom. The pressing block 20 is fixed to the vertical slide rod 18 by screws. The pressing block 20 can press and fix the material to be tested. A spring 19 is provided above the pressing block 20. The spring 19 is sleeved with the vertical slide rod 18. A stop block 24 is provided at the top of the vertical slide rod 18. The stop block 24 is integrally formed with the vertical slide rod 18. The side pressing mechanism also includes a sliding sleeve 21. A side support 26 is provided on the sliding sleeve 21. The side support 26 is welded to the sliding sleeve 21. Similarly, a lead screw 17, an adjustment knob 16 and a pressing plate 23 are provided on the side support 26. The pressing plate 23 is provided with the vertical slide rod 18, the spring 19 and the pressing block 20 at only one end.

[0025] Preferably, by adjusting the knob 16, lead screw 17, pressing plate 23, vertical slide bar 18, pressing block 20, central support 25, side support 26, and spring 19, rotating the adjusting knob 16 can drive the lead screw 17 at the bottom to rotate, thereby adjusting the pressing plate 23 up and down. After the pressing block 20 presses down on the material to be tested at the bottom, the pressing plate 23 can be adjusted downwards, thereby causing the pressing block 20 to push the spring 19 upwards, compressing the spring 19. Through the combined action of the pressing plate 23 and the pressing block 20, the material to be tested can be firmly fixed on the base 15, preventing the material to be tested from shifting during the sliding friction test.

[0026] like Figure 3 As shown, the sliding sleeve 21 has through holes 22 on both sides, and the side sliding rod 8 also has multiple through holes 22. The sliding sleeve 21 can slide on the side sliding rod 8. A plug rod 27 can be inserted into the through holes 22 of the sliding sleeve 21 and the side sliding rod 8. The plug rod 27 can fix the sliding sleeve 21 on the side sliding rod 8.

[0027] Preferably, through the arrangement of the sliding sleeve 21, through hole 22, side sliding rod 8 and insert rod 27, the middle pressing mechanism and the side pressing mechanism can slide on the side sliding rod 8 via the sliding sleeve 21, and the fixed position of the pressing mechanism can be freely adjusted. After the pressing mechanism is adjusted, the insert rod 27 can be inserted into the through hole 22 on the sliding sleeve 21 and the side sliding rod 8 in sequence to lock the pressing mechanism and prevent the pressing mechanism from sliding during testing.

[0028] like Figure 4 As shown, the two ends of the side slide rod 8 are fixed to the fixing block 9 by screws. The bottom of the fixing block 9 is welded to the connecting rod 29. The two ends of the guide slide rod 28 are fixedly connected to the base 15 respectively. The connecting rod 29 can slide on the guide slide rod 28.

[0029] Preferably, with the setting of the fixing block 9, the guide slide rod 28 and the sliding groove 10, the fixing block 9 can slide on the guide slide rod 28 through the bottom connecting rod 29, and the fixing block 9 can slide inside the sliding groove 10, thereby driving the side slide rod 8 and the pressing mechanism installed on it to move. This allows the position of the pressing mechanism to be adjusted according to the test material of different sizes. At the same time, the pressing mechanism does not need to be fixed with screws, saving the process of repeatedly disassembling and assembling screws, simplifying the sliding friction test and improving the test efficiency.

[0030] 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 mold clamping mechanism for a sliding friction testing machine, comprising a base (15) and a control box (3) disposed on the base (15); The control box (3) is provided with a cover plate (2) and a control console (1). The front of the control box (3) is provided with two telescopic push plates (14). The telescopic push plates (14) are provided with an adjustment plate (13). The adjustment plate (13) is provided with an installation part (7). The installation part (7) and the adjustment plate (13) are provided with a fixing screw (4). The installation part (7) is provided with a weight rod (5) above the installation part (7). The weight rod (5) is fitted with a weight (6). The installation part (7) is provided with a clamp (12) at the bottom. The clamp (12) holds a glass block (11). Its features are: The base (15) is provided with two parallel sliding grooves (10) in the horizontal direction. The sliding grooves (10) are provided with three pairs of fixing blocks (9). A connecting rod (29) is provided between the bottoms of each pair of fixing blocks (9). Guide slide rods (28) are provided at both ends of the connecting rods (29). Side slide rods (8) are provided between the tops of the fixing blocks (9). Two side pressing mechanisms are provided on the side slide rods (8) on both sides. Two middle pressing mechanisms are provided on the middle side slide rod (8).

2. The mold clamping mechanism for a sliding friction testing machine according to claim 1, characterized in that: The intermediate pressing mechanism includes a sliding sleeve (21), on which an intermediate support member (25) is provided. The intermediate support member (25) is welded to the sliding sleeve (21), and a lead screw (17) is provided between the intermediate support member (25) and the sliding sleeve (21). The two ends of the lead screw (17) are rotatably connected to the intermediate support member (25) and the sliding sleeve (21), respectively.

3. The mold clamping mechanism for a sliding friction testing machine according to claim 2, characterized in that: An adjustment knob (16) is provided on the top of the lead screw (17). The adjustment knob (16) is fixedly connected to the lead screw (17). A pressing plate (23) is provided on the lead screw (17). The pressing plate (23) is threadedly connected to the lead screw (17). When the lead screw (17) rotates, it can drive the pressing plate (23) to rise and fall.

4. The mold clamping mechanism for a sliding friction testing machine according to claim 3, characterized in that: The pressing plate (23) is provided with vertical slide rods (18) at both ends. The vertical slide rods (18) are inserted into the pressing plate (23). A pressing block (20) is provided at the bottom of the vertical slide rods (18). The pressing block (20) is fixedly installed with the vertical slide rods (18) by screws. The pressing block (20) can press and fix the material to be tested.

5. The mold clamping mechanism for a sliding friction testing machine according to claim 4, characterized in that: A spring (19) is provided above the pressing block (20), the spring (19) is sleeved with the vertical slide rod (18), and a stop block (24) is provided at the top of the vertical slide rod (18), the stop block (24) and the vertical slide rod (18) are integrally formed.

6. The mold clamping mechanism for a sliding friction testing machine according to claim 5, characterized in that: The side pressing mechanism also includes a sliding sleeve (21), on which a side support (26) is provided. The side support (26) is welded to the sliding sleeve (21). Similarly, a lead screw (17), an adjustment knob (16), and a pressing plate (23) are provided on the side support (26). The pressing plate (23) has a vertical sliding rod (18), a spring (19), and a pressing block (20) on only one end.

7. The mold clamping mechanism for a sliding friction testing machine according to claim 6, characterized in that: The sliding sleeve (21) has through holes (22) on both sides, and the side sliding rod (8) also has multiple through holes (22). The sliding sleeve (21) can slide on the side sliding rod (8). A plug rod (27) can be inserted into the through holes (22) of the sliding sleeve (21) and the side sliding rod (8). The plug rod (27) can fix the sliding sleeve (21) on the side sliding rod (8).

8. The mold clamping mechanism for a sliding friction testing machine according to claim 7, characterized in that: The two ends of the side slide rod (8) are fixed to the fixing block (9) by screws. The bottom of the fixing block (9) is welded to the connecting rod (29). The two ends of the guide slide rod (28) are fixedly connected to the base (15) respectively. The connecting rod (29) can slide on the guide slide rod (28).

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