Friction coefficient instrument capable of positioning sliding block and rapidly clamping sample

Abstract

The utility model relates to a friction coefficient instrument capable of positioning a sliding block and quickly clamping a sample. The friction coefficient instrument comprises the sliding block arranged on a machine body of the friction coefficient instrument, a plurality of pressing blocks are hinged to the sliding block, magnetic materials A are arranged on the pressing blocks, and magnetic materials B attracted with the magnetic materials A are arranged on the sliding block; the magnetic material A and the magnetic material B attract each other, so that a sample on the sliding block is quickly clamped by the pressing block and the sliding block, and the device is simple, efficient, safe and reliable. The cross-shaped positioner is arranged on the machine body, the output end of the cross-shaped positioner faces the top of the machine body, and the placement position of the sliding block is positioned through the cross-shaped positioner, so that the placement position of the sliding block is prevented from influencing test data. According to the utility model, the accurate positioning of the sample on the slide block can be realized, and the rapid clamping of the sample can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of friction coefficient tester structure, and in particular to a friction coefficient tester with a positionable slider and quick sample clamping. Background Technology

[0002] A coefficient of friction meter is an instrument used to measure the surface frictional properties of materials such as films, paper, metal plates, plastics, rubber, textiles, and composite materials. By measuring the coefficient of friction, product design can be optimized, production efficiency improved, and safety and reliability ensured, thus it has wide applications in many industries.

[0003] The current method for testing the coefficient of friction is as follows: the sample to be tested is fixed on a horizontal test platform and the bottom of the slider, respectively. After applying a normal force, the slider is pulled horizontally to generate friction, thereby testing the coefficient of friction of the sample. However, the existing testing equipment has the following problems: First, before the experiment, the sample needs to be pasted on the bottom of the slider, which is cumbersome and easily touches the test surface of the sample, causing the sample to be contaminated with grease and dirt, which changes the friction force; the sample is also prone to uneven placement, which leads to changes in the friction area and affects the test data; Second, the slider is placed manually on the test platform of the coefficient of friction meter, and it is difficult to ensure that the position of the slider is consistent each time. Therefore, the initial distance and direction of the slider placement position are different during the test, resulting in poor repeatability of the test data and inaccurate test results. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a friction coefficient meter with a positionable slider and rapid sample clamping. Through the mutual attraction between magnetic material A and magnetic material B, the pressure block quickly clamps the sample on the slider. This friction coefficient meter is simple, efficient, safe, reliable, and easy to operate.

[0005] This utility model is achieved through the following technical solution: a friction coefficient meter with a positionable slider and quick sample clamping capability is provided, including a slider mounted on the body of the friction coefficient meter; several pressure blocks are hinged to the slider, and magnetic material A is provided on the pressure blocks, while magnetic material B, which is attracted to magnetic material A, is provided on the slider; through the mutual attraction between magnetic material A and magnetic material B, the pressure blocks and the slider quickly clamp the sample on the slider.

[0006] As an optimization, the pressure block is equipped with hooks, which are connected to the drive mechanism of the sensor and the friction coefficient meter; the hooks on the pressure block prevent them from affecting the placement of the sample.

[0007] As an optimization, the motion trajectory of the end of the pressure block away from the hinge axis intersects with the top of the slider.

[0008] As an optimization, the slider is equipped with a left pressure block and a right pressure block, which are arranged opposite to each other. There is space between the left and right pressure blocks and the slider to allow the end of the sample to pass through. The left and right sliders press down on both ends of the sample, thereby fixing the sample.

[0009] As an optimization, a cross positioner is provided on the machine body, and the output end of the cross positioner faces the top of the machine body; the cross positioner is used to position the slider, thereby avoiding the slider's position from affecting the test data.

[0010] As an optimization, the cross positioner is connected to the machine body via a universal bracket; the position of the cross positioner can be adjusted via the universal bracket.

[0011] The beneficial effects of this utility model are as follows: the magnetic materials A and B attract each other, thereby enabling the pressure block and slider to quickly clamp the sample on the slider; the hook set on the pressure block prevents the hook from affecting the placement of the sample; the cross positioner positions the slider, thereby preventing the slider's placement position from affecting the test data; and the universal bracket adjusts the position of the cross positioner. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the slider structure in this utility model;

[0013] Figure 2 This is a diagram showing the usage state of the slider clamping the sample according to this utility model;

[0014] Figure 3 This is a schematic diagram of the friction coefficient meter described in this utility model;

[0015] In the diagram: 1. Slider, 2. Pressure block, 3. Magnetic material A, 4. Magnetic material B, 5. Hook, 6. Sensor, 7. Drive mechanism, 8. Cross positioner, 9. Universal bracket, 10. Sample A, 11. Sample B, 12. Body, 13. Pressure strip. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0017] This utility model discloses a friction coefficient meter with a positionable slider and rapid sample clamping capability, such as... Figure 1 , Figure 2 , Figure 3As shown, the device includes a slider 1 mounted on the body 12 of the friction coefficient meter; several pressure blocks 2 are hinged to the slider 1, and magnetic material A3 is provided on the pressure blocks 2. Magnetic material B, which is attracted to magnetic material A3, is provided on the slider 1. Specifically, two opposing pressure blocks 2, namely a left pressure block and a right pressure block, are hinged to the slider 1. Space is left between the left and right pressure blocks and the slider 1 to allow the end of the sample to pass through, and the hinged part of the two pressure blocks 2 is located in the middle of the slider 1.

[0018] Pull the pressure block 2, and the pressure block 2 rotates on the slider 1 and moves away from the slider 1. The sample A10 passes through the pressure block 2 and the slider 1 and wraps around the slider 1. Release the pressure block 2, and the magnetic materials A3 and B4 attract each other. Under the action of the magnetic materials A3 and B4, the pressure block 2 is adsorbed onto the slider 1. The pressure block 2 and the slider 1 complete the clamping of the sample A10.

[0019] like Figures 1-3 As shown, the pressure block 2 is provided with a hook 5, which is connected to the driving mechanism 7 of the friction coefficient meter via a sensor 6. The friction coefficient meter includes a pressure strip 13 set on the top of the body 12. The driving mechanism 7 includes a moving crossbeam slidably mounted on the body 12 and a motor that drives the moving crossbeam to slide on the body 12. The sensor 6 is set on the moving crossbeam. The specific structure of the moving crossbeam and the sensor 6 is existing technology and will not be described in detail in this embodiment.

[0020] The sample B11 is laid flat on the top of the machine body 12. The pressure strip 13 is placed on the sample B11 and presses it down. The slider 1, which completes the clamping, is placed on the sample B11. The hook 5 is connected to the drive mechanism 7 through the sensor 6. The drive mechanism 7 pulls the hook, which pulls the slider 1, the pressure block 2 and the sample A10 to slide on the sample B11. The sensor 6 detects the pulling force that pulls the slider 1, the pressure block 2 and the sample A10, and thus calculates the coefficient of friction between the sample A10 and the sample B11.

[0021] like Figure 1 and Figure 2 The motion trajectory of the end of the pressure block 2 away from the hinge axis intersects with the top of the slider 1.

[0022] Pull the pressure block 2, and the pressure block 2 rotates on the slider 1 and moves away from the top of the slider 1. The sample A10 passes between the pressure block 2 and the slider 1 and wraps around the slider 1. Release the pressure block 2, and the magnetic materials A3 and B4 attract each other. Under the action of the magnetic materials A3 and B4, the pressure block 2 is adsorbed onto the top of the slider 1. The pressure block 2 and the slider 1 complete the clamping of the sample A10.

[0023] like Figure 3The machine body 12 shown is provided with a cross positioner 8, and the output end of the cross positioner 8 faces the top of the machine body 12; the output end of the cross positioner 8 is perpendicular to the top of the machine body 12. The structure and working principle of the cross positioner 8 are existing technologies and will not be described in detail in this embodiment.

[0024] Turn on the cross positioner 8. The cross positioner 8 projects a crosshair onto the sample B11. Place the slider 1 at the designated position according to the crosshair.

[0025] like Figure 3 The cross positioner 8 shown is connected to the body 12 via a universal bracket 9.

[0026] Adjust the universal bracket 9 as needed until the cross positioner 8 is adjusted to the designated position on the top of the body 12 under the action of the universal bracket 9.

[0027] In actual production, the universal bracket 9 is adjusted according to the needs until the cross positioner 8 is adjusted to the designated position on the top of the machine body 12 under the action of the universal bracket 9; the cross positioner 8 is turned on, and the cross positioner 8 projects a cross cursor on the sample B11. The slider 1 is placed in the designated position according to the cross cursor.

[0028] Pulling the pressure block 2 causes it to rotate on the slider 1 and move away from the top of the slider 1. The sample A10 passes between the pressure block 2 and the slider 1 and wraps around the slider 1. When the pressure block 2 is released, the magnetic materials A3 and B4 attract each other. Under the action of the magnetic materials A3 and B4, the pressure block 2 is adsorbed onto the top of the slider 1. The pressure block 2 and the slider 1 complete the clamping of the sample A10. The sample B11 is laid flat on the top of the machine body 12. The pressure strip 13 is placed on the sample B11 and presses it down. The slider 1, which has completed clamping, is placed on the sample B11. The hook 5 is connected to the drive mechanism 7 through the sensor 6. The drive mechanism 7 pulls the hook, which pulls the slider 1, the pressure block 2, and the sample A10 to slide on the sample B11. The sensor 6 detects the pulling force that pulls the slider 1, the pressure block 2, and the sample A10, thereby calculating the coefficient of friction between the sample A10 and the sample B11.

[0029] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A friction coefficient meter with a positionable slider and rapid sample clamping capability, comprising a slider (1) disposed on the body (12) of the friction coefficient meter; characterized in that: Several pressure blocks (2) are hinged on the slider (1). Magnetic material A (3) is provided on the pressure block (2). Magnetic material B (4) is provided on the slider (1) and attracts magnetic material A (3). A cross positioner (8) is provided on the body (12), and the output end of the cross positioner (8) faces the top of the body (12).

2. The friction coefficient meter with a positionable slider and rapid sample clamping according to claim 1, characterized in that: The pressure block (2) is provided with a hook (5), which is connected to the drive mechanism (7) of the friction coefficient meter through the sensor (6).

3. The friction coefficient meter with a positionable slider and rapid sample clamping according to claim 1, characterized in that: The motion trajectory of the end of the pressure block (2) away from the hinge axis intersects with the top of the slider (1).

4. The friction coefficient meter with a positionable slider and rapid sample clamping according to claim 1, characterized in that: The slider (1) is provided with a left pressure block and a right pressure block. The left pressure block and the right pressure block are arranged opposite to each other, and there is space between the left pressure block, the right pressure block and the slider (1) to allow the end of the sample to pass through.

5. The friction coefficient meter with a positionable slider and rapid sample clamping according to claim 1, characterized in that: The cross positioner (8) is connected to the body (12) via a universal bracket (9).

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