Jig for testing scratch resistance

Abstract

The utility model discloses a jig for testing scratch resistance. The jig comprises a workbench, a main frame, a sliding rail assembly and a scratch assembly, wherein the main frame, the sliding rail assembly and the scratch assembly are arranged on the workbench. The sliding rail assembly is arranged on the workbench, the main frame is arranged on the sliding rail assembly in a sliding mode, the scratching assembly is arranged on the main frame, the scratching assembly abuts against a to-be-detected object on the workbench, and in the sliding process of the main frame on the sliding rail assembly, the scratching assembly is used for scratching the surface of the to-be-detected object. According to the utility model, the main frame slides along the slide rail assembly to drive the scratching assembly to scratch the object to be tested, and then certain sliding friction force is always kept between the scratching assembly and the object to be tested in the moving process, so that the anti-scratching performance of the object to be tested is accurately tested. And by arranging the adjusting weight, the balance rod and the weight adding assembly, the sliding friction force between the scratching assembly and the to-be-detected object can be adjusted, so that the anti-scratching performance of the to-be-detected object under different sliding friction forces can be more accurately judged.

Description

Technical Field

[0001] The utility model relates to the field of jigs, in particular to a jig for testing scratch resistance. Background Art

[0002] In the prior art, the touch screen cover is mainly a glass cover plate, and the surface of the glass cover plate is usually coated. In order to ensure the yield rate, the manufacturer must perform a scratch resistance test on the coating before shipment. However, the force used in manual testing of the scratch resistance of the glass cover plate is inconsistent, resulting in inaccurate test results.

[0003] Therefore, there is an urgent need to propose a jig for testing scratch resistance. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a jig for testing scratch resistance.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A jig for testing scratch resistance, comprising: a workbench and a main frame, a slide rail assembly and a scratch assembly arranged on the workbench;

[0007] The main frame is slidably disposed on the slide rail assembly, the scratch assembly is disposed on the main frame, the scratch assembly abuts against the object to be tested on the workbench, and the scratch assembly scratches the surface of the object to be tested during the sliding of the main frame on the slide rail assembly.

[0008] In one of the embodiments, it also includes a lifting and lowering adjustment component, which includes a clamping component, an adjustment switch and a hanging rod. The clamping component is clamped at both ends of the main frame, and both ends of the hanging rod are connected to the clamping component. The scratching component is connected to the hanging rod. The adjustment switch is set on the clamping component and is used to adjust the tightness between the clamping component and the main frame to achieve lifting.

[0009] In one embodiment, the scratching assembly includes a scratching member, the scratching member can abut against the surface of the object to be measured, and the abutting end of the scratching member is a sharp end.

[0010] In one embodiment, the scratching assembly is provided with a weight adding assembly at one end of the scratching member, for increasing the dead weight to scratch the object to be tested.

[0011] In one embodiment, the scratching assembly further includes an adjustment weight, a balance bar, and a connecting block;

[0012] The balancing rod and the hanging rod are respectively arranged through the connecting block, one end of the balancing rod is connected to the scoring member, and the other end is connected to the adjusting weight.

[0013] In one embodiment, rubber rings are provided at the connection points between the balance rod and the suspension rod and the connection block respectively.

[0014] In one of the embodiments, the clamping assembly includes two clamping blocks, and the clamping blocks are liftably arranged on the main frame. The clamping blocks are provided with through slots, and the two ends of the hanging rod are respectively sleeved in the two through slots.

[0015] In one of the embodiments, a fastening screw is further included, the clamping block is further provided with a clamping groove, the through groove is connected to the clamping groove, the clamping block is provided with a fastening hole in a direction perpendicular to the clamping groove, and the fastening screw passes through the fastening hole to fasten the suspension rod.

[0016] In one of the embodiments, it also includes a push rod, which is arranged on the main frame.

[0017] In one embodiment, the slide rail assembly includes two slide rails and two connecting blocks;

[0018] The two slide rails are arranged on the workbench, the main frame is connected to the two connection blocks respectively, and the two connection blocks are slidably clamped on the two slide rails respectively.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] 1. The scratch resistance test fixture of the utility model is provided with a main frame which is slidably arranged on a slide rail assembly, and a scratch assembly is arranged on the main frame. The main frame slides along the slide rail assembly to drive the scratch assembly to abut against the object to be tested on the workbench. In the process of movement, the scratch assembly always maintains a certain sliding friction with the object to be tested, thereby accurately testing the scratch resistance performance of the object to be tested.

[0021] 2. The scratch resistance test fixture of the utility model can adjust the sliding friction between the scratch component and the object to be tested by setting an adjustable weight, a balance rod and a weight adding component, and then multiple test results can be obtained, thereby more accurately judging the scratch resistance performance of the object to be tested under different sliding frictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0023] Figure 1It is a schematic structural diagram of a jig for testing scratch resistance in one embodiment of the utility model.

[0024] Reference numerals:

[0025] Workbench 10, main frame 20, slide rail assembly 30, slide rail 31, connecting block 32, scratching assembly 40, scoring member 41, adjustment weight 42, balance bar 43, connecting block 44, rubber ring 45, clamping assembly 50, through slot 51, pressing slot 52, hanging rod 53, push rod 60. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0027] See also Figure 1 The embodiment of the present application proposes a jig for testing scratch resistance, including: a workbench 10 and a main frame 20, a slide rail 31 assembly 30 and a scratch assembly 40 arranged on the workbench 10. The main frame 20 is slidably arranged on the slide rail 31 assembly 30, and the scratch assembly 40 is arranged on the main frame 20. When the main frame 20 moves along the slide rail 31 assembly 30, the scratch assembly 40 on the main frame 20 is driven to move. During the test, the scratch assembly 40 abuts against the object to be tested on the workbench 10. When the main frame 20 slides on the slide rail 31 assembly 30, a certain sliding friction force is generated between the scratch assembly 40 on the main frame 20 and the object to be tested, thereby scratching the surface of the object to be tested, thereby accurately testing the scratch resistance performance of the object to be tested.

[0028] The present application also includes a lifting and adjusting component, see Figure 1 The lifting and lowering adjustment assembly includes a clamping assembly 50, an adjustment switch and a hanging rod 53. The clamping assembly 50 is clamped at both ends of the main frame 20, both ends of the hanging rod 53 are connected to the clamping assembly 50, the scratching assembly 40 is connected to the hanging rod 53, and the adjustment switch is arranged on the clamping assembly 50 for adjusting the tightness between the clamping assembly 50 and the main frame 20 to achieve lifting and lowering.

[0029] Furthermore, the scratching assembly 40 includes a scratching piece 41, which can abut against the surface of the object to be tested. The abutting end of the scratching piece 41 and the object to be tested is a sharp end, which is used to scratch the surface of the object to be tested. Because the contact area becomes smaller and the pressure increases, when the pressure applied by the scratching piece 41 to the object to be tested is constant, the scratching effect of the scratching piece 41 on the surface of the object to be tested is better. When the main frame 20 drives the scratching assembly 40 to move, the scratching piece 41 and the object to be tested generate sliding friction, thereby testing the scratch resistance of the object to be tested. Among them, the number of scratching pieces 41 can be multiple, depending on the test intensity, so that more accurate test results can be obtained.

[0030] Furthermore, the scratch component 40 is provided with a weight adding component at one end of the scoring member 41. By adding weights to the weight adding component to increase the dead weight to score the object to be tested, the sliding friction between the scoring member 41 and the object to be tested is increased, thereby testing the scratch resistance of the object to be tested with multiple forces and testing the scratch resistance of the object to be tested as a whole.

[0031] Also, see Figure 1 The scratching assembly 40 further includes an adjusting weight 42, a balancing rod 43 and a connecting block 32. When testing some objects with poor scratch resistance, the adjusting weight 42 offsets the deadweight of one end of the scratching member 41 through the balancing rod 43, thereby testing the scratch resistance of the object with poor scratch resistance. Specifically, the balancing rod 43 and the hanging rod 53 are respectively arranged on the connecting block 32, and the balancing rod 43 and the hanging rod 53 are arranged in a vertical direction, and one end of the balancing rod 43 is connected to the scratching member 41, and the other end is connected to the adjusting weight 42.

[0032] In one embodiment, see Figure 1 Rubber rings 45 are provided at the connections between the balance bar 43 and the suspension bar 53 and the connecting block 32 respectively. The design of the rubber ring 45 can increase the maximum static friction between the connections between the balance bar 43 and the suspension bar 53 and the connecting block 32 respectively when the scratching member 41 scratches the object to be tested, thereby effectively preventing the balance bar 43 from shaking, thereby affecting the test result of the scratch assembly 40 on the object to be tested.

[0033] In one embodiment, the clamping assembly 50 includes two clamping blocks, and the clamping blocks are provided with mounting holes. The main frame 20 includes two supporting feet, and the two supporting feet are respectively set in the mounting holes of the clamping blocks, and the tightness of the supporting feet in the mounting holes is adjusted by adjusting the switch to achieve the synchronous lifting and lowering of the two clamping blocks on the main frame 20. The clamping block is provided with a through slot 51, and the two ends of the hanging rod 53 are respectively set in the two through slots 51, and the through slot 51 is used to install the hanging rod 53. Further, the embodiment of the present application also includes a fastening screw, and the clamping block is also provided with a pressing slot 52, and the through slot 51 and the pressing slot 52 are connected to facilitate the installation of the hanging rod 53 in the through slot 51. The setting of the pressing slot 52 can reduce the resistance when the hanging rod 53 is installed, and the clamping block is provided with a fastening hole in a direction perpendicular to the pressing slot 52, and the fastening screw passes through the fastening hole to fasten the hanging rod 53, so that the hanging rod 53 becomes detachable, which is convenient for the installation and carrying of the jig, thereby protecting the scribing member 41.

[0034] See also Figure 1 The embodiment of the present application also includes a push rod 60, which is arranged on the main frame 20, so that the staff can hold the push rod 60 by hand to push the main frame 20 to drive the scratch component 40 along the slide rail 31 component 30 to scratch the object to be tested.

[0035] In addition, the slide rail 31 assembly 30 includes two slide rails 31 and two connecting blocks 32. The connecting blocks 32 are used to connect the slide rails 31 and the main frame 20. The slide rails 31 are fixed on both sides of the workbench 10, and the main frame 20 includes two supporting feet, and the two supporting feet are respectively connected to the two connecting blocks 32. The two connecting blocks 32 are respectively slidably clamped on the two slide rails 31. The sliding of the connecting blocks 32 on the slide rails 31 drives the main frame 20 to reciprocate along the length direction of the slide rails 31, thereby ensuring that the scratching pressure between the scratch assembly 40 and the object to be tested is constant.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A jig for testing scratch resistance, characterized in that: include: A workbench and a main frame, a slide rail assembly and a scratch assembly arranged on the workbench; The main frame is slidably disposed on the slide rail assembly, the scratch assembly is disposed on the main frame, the scratch assembly abuts against the object to be tested on the workbench, and the scratch assembly scratches the surface of the object to be tested during the sliding of the main frame on the slide rail assembly.

2. The scratch resistance test fixture according to claim 1, characterized in that: It also includes a lifting and lowering adjustment component, which includes a clamping component, an adjustment switch and a hanging rod. The clamping component is clamped at both ends of the main frame, and both ends of the hanging rod are connected to the clamping component. The scratching component is connected to the hanging rod. The adjustment switch is set on the clamping component and is used to adjust the tightness between the clamping component and the main frame to achieve lifting.

3. The scratch resistance test fixture according to claim 2, characterized in that: The scratching assembly comprises a scratching piece, and the scratching piece can abut against the surface of the object to be measured, and the abutting end of the scratching piece is a sharp end.

4. The scratch resistance test fixture according to claim 3, characterized in that: The scratching assembly is provided with a weight adding assembly at one end of the scratching piece, which is used to increase the dead weight to scratch the object to be tested.

5. The scratch resistance test fixture according to claim 4, characterized in that: The scratching assembly also includes an adjustment weight, a balance bar, and a connecting block; The balancing rod and the hanging rod are respectively arranged through the connecting block, one end of the balancing rod is connected to the scoring member, and the other end is connected to the adjusting weight.

6. The scratch resistance test fixture according to claim 5, characterized in that: The connection places of the balancing rod and the hanging rod with the connection block are respectively provided with rubber rings.

7. The scratch resistance test fixture according to claim 2, characterized in that: The clamping assembly comprises two clamping blocks, which are liftably arranged on the main frame, and the clamping blocks are provided with through slots, and the two ends of the hanging rod are respectively sleeved in the two through slots.

8. The scratch resistance test fixture according to claim 7, characterized in that: It also includes a fastening screw, the clamping block is also provided with a pressing groove, the through groove is connected to the pressing groove, the clamping block is provided with a fastening hole in a direction perpendicular to the pressing groove, and the fastening screw passes through the fastening hole to fasten the suspension rod.

9. The scratch resistance test fixture according to claim 8, characterized in that: It also includes a push rod, which is arranged on the main frame.

10. The scratch resistance test fixture according to claim 9, characterized in that: The slide rail assembly includes two slide rails and two connecting blocks; The two slide rails are arranged on the workbench, the main frame is connected to the two connection blocks respectively, and the two connection blocks are slidably clamped on the two slide rails respectively.

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