Abrasion resistance testing machine

Abstract

The utility model relates to the technical field of wear resistance tests, and discloses a wear resistance testing machine which comprises a main machine body, a driving assembly and a support, a test table top is arranged on the main machine body, a sample carrying plate is slidably installed on the test table top, and the moving direction of the sample carrying plate is parallel to the test table top. A first clamp is further installed on the side, away from the test table board, of the sample carrying plate. The driving assembly comprises a rotating part, a positioning block and a connecting rod, the rotating part is rotationally arranged on the test bed surface, the positioning block is adjustably connected to the rotating part, the positioning block is radially adjustable relative to the rotating center of the rotating part, and the end part of the connecting rod is hinged to the positioning block and the sample carrying plate respectively; the support is fixedly installed on the main machine body and further provided with a second clamp, and the first clamp and the second clamp are distributed at intervals in the direction away from the test table top. The reciprocating stroke of the sample to be tested relative to the friction head can be flexibly adjusted by adjusting the radial position of the positioning block relative to the rotating center of the rotating piece, and the universality of the wear resistance test is better.

Description

Technical Field

[0001] The utility model relates to the technical field of wear resistance testing, in particular to a wear resistance testing machine. Background Art

[0002] At present, before the products such as digital product casings, electronic screens, and plastic casings leave the factory, they need to undergo cross-cut tests or wear resistance tests, mainly for detecting the adhesion or wear resistance of the surface coatings and films of the products.

[0003] A rubber alcohol friction resistance testing machine is disclosed in the prior art, which specifically includes a machine case, a test bench, and a friction assembly. The test bench is fixedly connected to the bottom of the machine case, and the friction assembly is slidably arranged on the upper side of the test bench. A driving assembly for driving the friction assembly to move reciprocally is arranged in the machine case; a pressing plate, a plurality of screw holes, and locking members are arranged on the top surface of the test bench. The locking members include screw rods and clamping sleeves. The screw rods are rotatably connected to the pressing plate, and the bottom ends of the screw rods penetrate through the pressing plate and abut against the top surface of the pressing plate. During operation, the locking members are tightened to clamp and fix the article to be tested through the pressing plate, and the motor is started to drive the runner and the first connecting column to perform circular motion, and the support frame is driven to perform reciprocating motion on the guide rail through the connecting arm and the second connecting column, so as to achieve the purpose of driving the friction assembly.

[0004] In the prior friction resistance testing machine, the radial distance between the first connecting column and the center of the runner is constant, that is, the movement stroke of the friction assembly is unchanged. However, the wear resistance test requirements of actual products are different, and it is difficult to flexibly adjust the reciprocating stroke of the friction head relative to the product, and the wear resistance test has poor versatility. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the wear resistance test requirements of actual products are different, it is difficult to flexibly adjust the reciprocating stroke of the friction head relative to the product, and the wear resistance test has poor versatility.

[0006] In order to solve the above technical problem, the utility model provides a technical solution for a wear resistance testing machine:

[0007] The wear resistance testing machine includes:

[0008] A main body, on which a test table is provided. A sample carrier plate is slidably installed on the test table, the moving direction of the sample carrier plate is arranged parallel to the test table, and a first fixture is further installed on the side of the sample carrier plate away from the test table;

[0009] A driving assembly, which includes a rotating member, a positioning block, and a connecting rod. The rotating member is rotatably arranged on the test table, the positioning block is adjustably connected to the rotating member, and the positioning block is radially adjustable relative to the rotation center of the rotating member. The end parts of the connecting rod are respectively hinged to the positioning block and the sample carrier plate;

[0010] A bracket, which is fixedly installed on the main body, and a second clamp is also installed on the bracket. The first clamp and the second clamp are spaced apart in a direction away from the test tabletop.

[0011] Further, the rotating member is a circular turntable, the rotation center of the rotating member corresponds to the center of the circle, an adjusting structure is installed on the rotating member, the adjusting structure is in transmission connection with the positioning block, and the length direction of the adjusting structure extends along the diameter direction of the circle.

[0012] Further, a radial scale is also provided on the rotating member, and the radial scale is arranged parallel and spaced apart from the length direction of the adjusting structure.

[0013] [[ID=**10**]]Further, a radial groove is formed on the rotating member, the positioning block is movably arranged in the radial groove, and the adjusting structure is installed at the radial groove.

[0014] Further, the adjusting structure includes a screw rod and two fixing blocks. The two fixing blocks are respectively arranged at the ends of the radial groove. The screw rod is rotatably installed between the two fixing blocks, and the screw rod is in threaded connection with the positioning block.

[0015] Further, a plurality of mounting holes are dispersedly provided on the sample carrier plate. The first clamp includes a clamping plate and a first fastener. The clamping plate is provided with a long hole for the first fastener to pass through. The first fastener is in threaded connection with the mounting hole, and the first fastener is tightly fitted with the clamping plate.

[0016] Further, the bracket includes a support column, a cantilever and a second fastener. The support column is fixedly connected to the main body. The cantilever is adjustably installed on the support column. The second fastener is connected to the cantilever and is tightly fitted with the support column. The second clamp is arranged on the cantilever.

[0017] Further, the second clamp is provided with a second through hole, a third fastener penetrating through the second through hole is fixedly installed on the second clamp, and a rotating shaft is also connected between the second clamp and the end of the cantilever. The axis direction of the rotating shaft is arranged parallel to the test tabletop.

[0018] Further, a control board is also included. A power button, a power indicator light and a start button are also installed on the main body. The control board is electrically connected to the power button, the power indicator light, the start button and the driving assembly respectively.

[0019] Further, a speed governor, a speed display, and a counter are also installed on the main body, and the control board is electrically connected to the speed governor, the speed display, and the counter respectively.

[0020] Compared with the prior art, a wear-resistant testing machine of the present utility model has the following beneficial effects: The wear-resistant testing machine adopts a design form of a main body, a sample carrier plate, a driving assembly, and a bracket. A test tabletop is provided on the main body, and the sample carrier plate is slidably installed on the test tabletop. The sample carrier plate can perform translational movement along a direction parallel to the test tabletop, and a first clamp is further installed on a side of the sample carrier plate away from the test tabletop. The first clamp can reliably fix the sample to be tested on the sample carrier plate, so that the sample to be tested moves synchronously with the sample carrier plate.

[0021] Among them, the bracket is fixedly installed on the main body, and a second clamp is also installed on the bracket. The first clamp and the second clamp are spaced apart in a direction away from the test tabletop to avoid possible interference effects of the second clamp on the translational movement of the sample carrier plate. The second clamp is used to fix the friction rod, and the end of the friction rod has a friction head. The bracket can stably and reliably fix the friction rod. By means of the relative friction movement between the sample carrier plate and the sample to be tested and the friction head, the purpose of accurately testing the wear resistance of the sample to be tested is achieved.

[0022] In addition, the driving assembly includes a rotating member, a positioning block, and a connecting rod. The rotating member is rotatably arranged on the test tabletop, and the ends of the connecting rod are respectively hinged to the positioning block and the sample carrier plate. That is, the rotating member, the positioning block, and the connecting rod form a crank-slider mechanism. The rotating member serves as a rotational power source, and the connecting rod is used to convert the rotational movement into a reciprocating translational movement. Moreover, the positioning block is adjustably connected to the rotating member. By adjusting the radial position of the positioning block relative to the rotation center of the rotating member, the size of the reciprocating movement stroke of the sample carrier plate can be changed. If the wear test stroke required for the sample to be tested is large, the positioning block is adjusted to a radial position away from the rotation center, so as to achieve the purpose of flexibly adjusting the reciprocating stroke of the sample to be tested relative to the friction head, and the wear test has better versatility. Description of the Drawings

[0023] Figure 1 is a three-dimensional schematic diagram of the wear-resistant testing machine (when no test sample is installed) in an embodiment of the present utility model;

[0024] Figure 2 is a three-dimensional schematic diagram of the wear-resistant testing machine (when a test sample is installed) in an embodiment of the present utility model;

[0025] Figure 3 is a partial enlarged view of the wear-resistant testing machine in an embodiment of the present utility model;

[0026] In the figure: 1 - main body, 10 - test tabletop, 11 - control panel, 12 - power button, 13 - power indicator light, 14 - start button, 15 - speed governor, 16 - speed display, 17 - counter, 2 - sample carrier plate, 20 - first fixture, 21 - mounting hole, 22 - clamping plate, 23 - first fastener, 24 - long hole, 3 - drive assembly, 30 - adjustment structure, 31 - rotating part, 32 - positioning block, 33 - connecting rod, 34 - radial scale, 35 - radial groove, 36 - screw, 37 - fixed block, 4 - bracket, 40 - second fixture, 41 - support column, 42 - cantilever, 43 - second fastener, 44 - second through hole, 45 - third fastener, 46 - rotating shaft. Detailed implementation manners

[0027] The following combines the drawings and embodiments to further describe in detail the detailed implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Such as Figures 1 to 3As shown in the figure, a wear-resistant testing machine according to an embodiment of the present utility model includes: a main body 1, a sample carrier plate 2, a driving assembly 3 and a bracket 4. A test table 10 is provided on the main body 1. The sample carrier plate 2 is slidably mounted on the test table 10. The moving direction of the sample carrier plate 2 is arranged parallel to the test table 10. A first fixture 20 is further mounted on the side of the sample carrier plate 2 away from the test table 10.

[0032] The driving assembly 3 includes a rotating member 31, a positioning block 32 and a connecting rod 33. The rotating member 31 is rotatably arranged on the test table 10. The positioning block 32 is adjustably connected to the rotating member 31, and the positioning block 32 is radially adjustable relative to the rotation center of the rotating member 31. The ends of the connecting rod 33 are respectively hinged to the positioning block 32 and the sample carrier plate 2. The bracket 4 is fixedly mounted on the main body 1. The bracket 4 is further provided with a second fixture 40. The first fixture 20 and the second fixture 40 are spaced apart in the direction away from the test table 10.

[0033] The wear-resistant testing machine adopts the design form of the main body 1, the sample carrier plate 2, the driving assembly 3 and the bracket 4. A test table 10 is provided on the main body 1. The sample carrier plate 2 is slidably mounted on the test table 10. The sample carrier plate 2 can perform a translational motion along a direction parallel to the test table 10. A first fixture 20 is further mounted on the side of the sample carrier plate 2 away from the test table 10. The first fixture 20 can reliably fix the sample to be tested on the sample carrier plate 2, so that the sample to be tested moves synchronously with the sample carrier plate 2.

[0034] Among them, the bracket 4 is fixedly mounted on the main body 1, and the bracket 4 is further provided with a second fixture 40. The first fixture 20 and the second fixture 40 are spaced apart in the direction away from the test table 10 to avoid possible interference effects of the second fixture 40 on the translational motion of the sample carrier plate 2. The second fixture 40 is used to fix the friction rod, and the end of the friction rod has a friction head. The bracket 4 can stably and reliably fix the friction rod. By the relative friction movement of the sample carrier plate 2 and the sample to be tested with respect to the friction head, the purpose of accurately testing the wear resistance of the sample to be tested is achieved.

[0035] In addition, the driving component 3 includes a rotating member 31, a positioning block 32, and a connecting rod 33. The rotating member 31 is rotatably arranged on the test table 10. The end parts of the connecting rod 33 are respectively hinged to the positioning block 32 and the sample carrier 2. That is, the rotating member 31, the positioning block 32, and the connecting rod 33 form a crank-slider mechanism. The rotating member 31 serves as a rotational power source, and the connecting rod 33 is used to convert the rotational motion into a reciprocating translational motion. Moreover, the positioning block 32 is adjustably connected to the rotating member 31. By adjusting the radial position of the positioning block 32 relative to the rotation center of the rotating member 31, the size of the reciprocating motion stroke of the sample carrier 2 can be changed. For example, if the wear resistance test stroke required for the sample to be tested is large, the positioning block 32 is adjusted to a radial position far from the rotation center, so as to flexibly adjust the reciprocating stroke of the sample to be tested relative to the friction head, and the wear resistance test has better versatility.

[0036] In this embodiment, the rotating member 31 is a circular turntable. The rotation center of the rotating member 31 corresponds to the center of the circle. An adjusting structure 30 is installed on the rotating member 31. The adjusting structure 30 is in transmission connection with the positioning block 32. The length direction of the adjusting structure 30 extends along the diameter direction of the circle. Moreover, a radial scale 34 is also provided on the rotating member 31. The radial scale 34 is arranged parallel and spaced from the length direction of the adjusting structure 30. When adjusting the position of the positioning block 32 along the diameter direction of the circle through the adjusting structure 30, the radial scale 34 can be referred to determine the radial distance of the positioning block 32 relative to the rotation center. That is, this radial distance is equivalent to half of the reciprocating motion stroke of the sample carrier 2, which can better meet the actual test requirements of the sample to be tested.

[0037] As a further preferred solution, a radial groove 35 is formed on the rotating member 31. The positioning block 32 is movably arranged in the radial groove 35. The adjusting structure 30 is installed at the radial groove 35. The radial groove 35 plays a guiding role for the positioning block 32, ensuring that the adjusting structure 30 can accurately adjust the position of the positioning block 32 along the diameter direction. Specifically, the adjusting structure 30 includes a screw 36 and two fixing blocks 37. The two fixing blocks 37 are respectively arranged at the ends of the radial groove 35. The screw 36 is rotatably installed between the two fixing blocks 37, and the screw 36 is in threaded connection with the positioning block 32. The rotation of the screw 36 can drive the positioning block 32 to move precisely along the radial groove 35, effectively improving the adjustment accuracy.

[0038] In this embodiment, a plurality of mounting holes 21 are dispersedly provided on the sample carrier plate 2. The first fixture 20 includes a clamping plate 22 and a first fastener 23. The clamping plate 22 is provided with a long hole 24 for the first fastener 23 to pass through. The first fastener 23 is threadedly connected to the mounting hole 21 and is tightly fitted with the clamping plate 22. Pass the first fastener 23 through the long hole 24 of the clamping plate 22 and threadedly connect it to the mounting hole 21 of the sample carrier plate 2. By screwing the first fastener 23, the clamping plate 22 can be pressed and fixed on the sample carrier plate 2. At least two first fixtures 20 can reliably limit the sample to be tested, and the clamping plate 22 can be finely adjusted and positioned along the length direction of the long hole 24.

[0039] Among them, the bracket 4 includes a support column 41, a cantilever 42 and a second fastener 43. The support column 41 is fixedly connected to the main body 1. The cantilever 42 is adjustably mounted on the support column 41. The second fastener 43 is connected to the cantilever 42 and is tightly fitted with the support column 41. The second fixture 40 is arranged on the cantilever 42. Loosen the second fastener 43 to adjust the height position of the cantilever 42 along the support column 41, and tighten the cantilever 42 after the adjustment is in place. Moreover, the second fixture 40 is provided with a second through hole 44. A third fastener 45 penetrating through the second through hole 44 is fixedly installed on the second fixture 40. A rotating shaft 46 is also connected between the second fixture 40 and the end of the cantilever 42. The axis direction of the rotating shaft 46 is arranged parallel to the test table 10. The friction rod can be inserted into the second through hole 44, and the friction rod can be fixed in the second fixture 40 through the third fastener 45. The second fixture 40 can be rotated and adjusted relative to the cantilever 42, and the installation angle of the friction rod can be flexibly changed, so as to adaptively adjust the friction angle.

[0040] In addition, a control board 11 is further included. A power button 12, a power indicator light 13 and a start button 14 are also installed on the main body 1. The control board 11 is electrically connected to the power button 12, the power indicator light 13, the start button 14 and the driving component 3 respectively. Specifically, the driving component 3 further includes a motor connected to the rotating member 31. Operating the power button 12 energizes the control board 11, and operating the start button 14 can start the driving component 3 to work through the control board 11. A speed regulator 15, a speed display 16 and a counter 17 are also installed on the main body 1. The control board 11 is electrically connected to the speed regulator 15, the speed display 16 and the counter 17 respectively, which can meet the test requirements of manual speed regulation, speed display and friction counting.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A wear-resistant testing machine, characterized in that, Including: A main body (1) is provided with a test tabletop (10). A sample carrier plate (2) is slidably mounted on the test tabletop (10). The moving direction of the sample carrier plate (2) is arranged parallel to the test tabletop (10). A first fixture (20) is further mounted on the side of the sample carrier plate (2) away from the test tabletop (10). A driving assembly (3) includes a rotating member (31), a positioning block (32), and a connecting rod (33). The rotating member (31) is rotatably arranged on the test tabletop (10). The positioning block (32) is adjustably connected to the rotating member (31), and the positioning block (32) is radially adjustable relative to the rotation center of the rotating member (31). The ends of the connecting rod (33) are respectively hinged to the positioning block (32) and the sample carrier plate (2). A bracket (4) is fixedly mounted on the main body (1). The bracket (4) is further provided with a second fixture (40). The first fixture (20) and the second fixture (40) are spaced apart in a direction away from the test tabletop (10).

2. The wear-resistant testing machine according to claim 1, characterized in that The rotating member (31) is a circular turntable. The rotation center of the rotating member (31) corresponds to the center of the circle. An adjusting structure (30) is mounted on the rotating member (31). The adjusting structure (30) is in transmission connection with the positioning block (32). The length direction of the adjusting structure (30) extends along the diameter direction of the circle.

3. The wear-resistant testing machine according to claim 2, characterized in that, A radial scale (34) is further provided on the rotating member (31). The radial scale (34) is arranged parallel and spaced apart from the length direction of the adjusting structure (30).

4. The wear-resistant testing machine according to claim 2, characterized in that, A radial groove (35) is formed on the rotating member (31). The positioning block (32) is movably arranged in the radial groove (35). The adjusting structure (30) is mounted at the radial groove (35).

5. The wear-resistant testing machine according to claim 4, characterized in that, The adjusting structure (30) includes a screw (36) and two fixing blocks (37). The two fixing blocks (37) are respectively arranged at the ends of the radial groove (35). The screw (36) is rotatably mounted between the two fixing blocks (37), and the screw (36) is in threaded connection with the positioning block (32).

6. The wear-resistant testing machine according to claim 1, characterized in that, A plurality of mounting holes (21) are dispersedly provided on the sample carrier plate (2). The first fixture (20) includes a clamping plate (22) and a first fastener (23). The clamping plate (22) is provided with an elongated hole (24) for the first fastener (23) to pass through. The first fastener (23) is in threaded connection with the mounting hole (21), and the first fastener (23) is in tight fit with the clamping plate (22).

7. The wear-resistant testing machine according to claim 1, characterized in that, The bracket (4) includes a support column (41), a cantilever (42) and a second fastener (43). The support column (41) is fixedly connected to the main body (1). The cantilever (42) is adjustably mounted on the support column (41). The second fastener (43) is connected to the cantilever (42) and is in tight fit with the support column (41). The second clamp (40) is provided on the cantilever (42).

8. The wear-resistant testing machine according to claim 7, characterized in that, The second clamp (40) is provided with a second through hole (44). A third fastener (45) penetrating through the second through hole (44) is fixedly installed on the second clamp (40). A rotating shaft (46) is also connected between the second clamp (40) and the end of the cantilever (42). The axis direction of the rotating shaft (46) is arranged parallel to the test table top (10).

9. The wear-resistant testing machine according to claim 1, characterized in that, It further includes a control board (11). A power button (12), a power indicator light (13) and a start button (14) are further installed on the main body (1). The control board (11) is electrically connected to the power button (12), the power indicator light (13), the start button (14) and the drive assembly (3) respectively.

10. The wear-resistant testing machine according to claim 9, characterized in that, A speed regulator (15), a speed display (16) and a counter (17) are further installed on the main body (1). The control board (11) is electrically connected to the speed regulator (15), the speed display (16) and the counter (17) respectively.

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