Surface roughness testing tool suitable for various section structures

Abstract

The utility model relates to a surface roughness test tool suitable for various cross section structures, and aims to solve the technical problems of unstable hand holding, small application range and low practicability in the existing test, and adopts the technical scheme that the height of a roughness instrument is adjusted by adjusting the height of a placement platform on one side; the sample bracket on the other side is provided with sample clamps suitable for various different shapes, and the test position of each sample clamp is adjusted through a bracket angle adjusting arm and a limiting device; according to the utility model, the problems of great measurement error and incapability of measurement caused by the fact that the contact pins cannot move in parallel when the surface roughness of products with special-shaped sections such as arc-shaped products and irregular-shaped products is measured can be solved, the use range of a roughness meter is effectively expanded by using the measurement tool, and the error of manual measurement and the difference between different persons are reduced; and the measurement accuracy and the test efficiency are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample roughness testing equipment, and in particular relates to a surface roughness testing tool suitable for various cross-sectional structures. Background Art

[0002] In the production of sealing products, the measurement of surface roughness is particularly important. For example, in mold processing, the surface roughness of the mold core directly determines the surface roughness of the product, which not only affects the appearance of the product, but also causes abnormal matching between the sealing product and the grinding surface, thus failing to meet customer requirements; in daily friction and wear tests, if the grinding surface roughness is too large, the wear degree of the test material will be increased, which will cause excessive material performance when guiding material selection, leading to an increase in costs. If the grinding surface roughness is too low, the wear resistance of the sealing material cannot be effectively evaluated, resulting in a shortened service life of the seal and after-sales complaints. Therefore, the surface roughness index has an important impact on product performance and service life.

[0003] Daily surface roughness measurement is mainly carried out in two ways: one is a handheld roughness meter, which is the most commonly used method at present. The use of this equipment is not restricted by the site. However, when using a handheld roughness meter to measure the surface roughness, if the test surface is a plane, the test difficulty will be greatly reduced. Once the product surface is not a plane, such as an arc, a slope or a special-shaped structure, simply relying on hand-held cannot meet the conditions for parallel movement scanning of the roughness meter probe, which will cause serious deviations in the surface roughness test data, or even the inability to measure the data; the other is to use a laser spectral focusing microscope. Through laser scanning combined with a high-resolution electric displacement module and a three-dimensional image algorithm, a precise microscopic three-dimensional structure is obtained. It is an ideal measurement tool in the fields of integrated circuits, photovoltaic power generation, new lithium batteries, and aviation manufacturing. The measurement equipment is expensive, has high requirements for the use environment, and has certain requirements for the size and weight of the product. It is not very practical for general industrial production. However, there are many types of parts produced in daily life, and the cross-sections are different. In order to meet the above test requirements, a convenient and multi-functional test tool is particularly important. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a surface roughness testing tool suitable for various cross-sectional structures.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A surface roughness testing tool suitable for various cross-sectional structures comprises a base, a support arm, a placement platform, a sample bracket, a bracket support arm, a roughness meter and a sample fixture, wherein the support arm is fixedly arranged on one side of the top surface of the base, the placement platform is arranged on the upper part of the support arm through an adjustable slider, and a placement platform adjustment knob is arranged on the side wall of the adjustable slider, the roughness meter is placed on the placement platform, the bracket support arm is rotatably arranged on the other side of the top surface of the base, a plurality of bracket angle adjustment arms are arranged on the side wall of the bracket support arm for adjusting the rotation angle of the bracket support arm, the sample bracket is fixedly arranged on the upper end of the bracket support arm, and the sample fixture is arranged on the top surface of the bracket support arm.

[0007] Furthermore, the placement platform adjustment knob includes a placement platform coarse adjustment knob and a placement platform fine adjustment knob. The placement platform coarse adjustment knob is used for preliminary coarse adjustment of the height of the placement platform, and the placement platform fine adjustment knob is used for further fine adjustment of the height of the placement platform.

[0008] Furthermore, a limiting device is provided on the side wall of the placement platform opposite to the sample bracket, and a limiting groove is provided on the side wall of the sample bracket at the corresponding position of the sample fixture. The limiting device includes a shell, a clamping column, a push rod, a rotating rod and a reset spring. The rear end of the shell is fixedly arranged on the side wall of the placement platform opposite to the sample bracket, and the front end of the shell is open. The clamping column is arranged in the shell, and the front end of the clamping column extends out of the opening. A cam hole is provided at the rear of the clamping column. The rotating rod passes through the side wall of the shell and the cam hole is horizontally arranged. The push rod is coaxially arranged with the rotating rod. When the rotating rod is rotated, the push rod presses against the cam hole backwards to push the clamping column to move into the shell, and the reset spring is arranged between the rear end of the clamping column and the shell.

[0009] Furthermore, an anti-slip pad is provided between the placement platform and the roughness meter.

[0010] Furthermore, the sample clamps include a cube clamp, a three-jaw disc clamp, a slender block clamp and an irregular sample clamp.

[0011] Furthermore, the irregular sample fixture includes two bases, a sample base, an irregular sample fixture, a clamping degree adjustment button and an angle adjustment button. The two bases are fixed on both sides of the top surface of the irregular sample fixture base, the sample base is horizontally arranged between the two bases through a rotating shaft, the irregular sample fixture is movably arranged on the top surface of the sample base, the clamping degree adjustment button is used to adjust the distance between the irregular sample fixtures, and the angle adjustment button is used to adjust the tilting angle of the sample base.

[0012] Furthermore, an angle dial is provided at one end of the sample base connected to the base, and a pointer is provided on the base at the corresponding side.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can solve the problem that the stylus cannot move in parallel when measuring the surface roughness of products with special cross-sections such as arcs and irregular shapes, resulting in large measurement errors and inability to measure. The use of the measuring tool effectively expands the use range of the roughness meter, reduces the error of manual measurement and the difference between different personnel, and greatly improves the measurement accuracy and test efficiency;

[0015] 2. Compared with the laser spectral focusing microscope, the utility model greatly reduces the equipment investment and has the characteristics of low investment and wide application range;

[0016] 3. The sample holder of the utility model with rotatable and multi-specification clamping device can meet the surface roughness measurement of products with various shapes and cross-sections, and maximize the use efficiency of the equipment;

[0017] 4. The utility model has small size, simple operation and convenience, and general technicians can take up the job after short training. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the limit device of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the irregular sample fixture of the utility model;

[0023] In the figure: 1. Base; 2. Support arm; 3. Placement platform; 4. Placement platform adjustment knob; 5. Sample bracket; 6. Bracket support arm; 7. Bracket angle adjustment arm; 8. Limit device; 9. Roughness meter; 10. Sample fixture;

[0024] 4.1. Place the platform coarse adjustment knob; 4.2. Place the platform fine adjustment knob;

[0025] 5.1, limiting groove;

[0026] 8.1, housing; 8.2, clamping column; 8.3, cam hole; 8.4, push rod; 8.5, rotary rod; 8.6, return spring;

[0027] 10.1. Cube clamp; 10.2. Three-jaw plate clamp; 10.3. Slender block clamp; 10.4. Irregular specimen clamp;

[0028] 10.4.1. Base; 10.4.2. Specimen base; 10.4.3. Irregular specimen fixture; 10.4.4. Angle dial; 10.4.5. Pointer; 10.4.6. Clamping adjustment knob; 10.4.7. Angle adjustment knob. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1-5 As shown, a surface roughness test tool suitable for various cross-sectional structures includes a base 1, a support arm 2, a placement platform 3, a sample bracket 5, a bracket support arm 6, a roughness meter 9 and a sample fixture 10. The support arm 2 is fixed on one side of the top surface of the base 1. The placement platform 3 is arranged on the upper part of the support arm 2 through an adjustable slider, and a placement platform adjustment knob 4 is arranged on the side wall of the adjustable slider. The placement platform adjustment knob 4 includes a placement platform coarse adjustment knob 4.1 and a placement platform fine adjustment knob 4.2. The placement platform coarse adjustment knob 4. 1 is used for preliminary coarse adjustment of the height of the placement platform 3, and the placement platform fine adjustment knob 4.2 is used for further fine adjustment of the height of the placement platform 3. The placement platform 3 is provided with an anti-skid pad, and the roughness meter 9 is placed on the anti-skid pad. The bracket support arm 6 is rotatably arranged on the other side of the top surface of the base 1. A plurality of bracket angle adjustment arms 7 are arranged on the side wall of the bracket support arm 6 to adjust the rotation angle of the bracket support arm 6. The sample bracket 5 is fixedly arranged at the upper end of the bracket support arm 6, and the sample fixture 10 is arranged on the top surface of the bracket support arm 6.

[0031] A limiting device 8 is provided on the side wall of the placement platform 3 opposite to the sample bracket 5. A limiting groove 5.1 is provided on the side wall of the sample bracket 5 at the position corresponding to the sample fixture 10. The limiting device 8 includes a housing 8.1, a clamping column 8.2, a push rod 8.4, a rotating rod 8.5 and a reset spring 8.6. The rear end of the housing 8.1 is fixedly arranged on the side wall of the placement platform 3 opposite to the sample bracket 5. The front end of the housing 8.1 is open. The clamping column 8.2 is arranged on the housing 8.1. The front end of the card column 8.2 extends out of the opening, and a cam hole 8.3 is opened at the rear of the card column 8.2. The rotary rod 8.5 passes through the side wall of the shell 8.1 and is horizontally arranged with the cam hole 8.3. The push rod 8.4 is coaxially arranged with the rotary rod 8.5. When the rotary rod 8.5 is rotated, the push rod 8.4 pushes the cam hole 8.3 backward to push the card column 8.2 to move into the shell 8.1. The reset spring 8.6 is arranged between the rear end of the card column 8.2 and the shell 8.1.

[0032] The sample fixture 10 includes a cube fixture 10.1, a three-claw plate fixture 10.2, a slender block fixture 10.3 and an irregular sample fixture 10.4. The cube fixture 10.1 is used to place regular plane samples such as conventional rectangular parallelepipeds and cubes. The three-claw plate fixture 10.2 is used to clamp spherical, elliptical, irregular and other shaped samples. The three-point fixing method stably fixes the sample on the sample holder. The slender block fixture 10.3 is mainly for slender samples. The irregular sample fixture 10.4 is mainly for some irregular samples such as cones and quadrilaterals, or when the sample surface has features such as grooves and protrusions and needs to measure the roughness.

[0033] The irregular sample fixture 10.4 comprises two bases 10.4.1, a sample base 10.4.2, an irregular sample fixture 10.4.3, a clamping degree adjustment button 10.4.6 and an angle adjustment button 10.4.7. The two bases 10.4.1 are fixedly arranged on both sides of the top surface of the base of the irregular sample fixture 10.4. The sample base 10.4.2 is horizontally arranged between the two bases 10.4.1 through a rotating shaft. An angle dial 10.4.4 is arranged at one end of the sample base 10.4.2, and a pointer 10.4.5 is arranged on the base 10.4.1 on the corresponding side. The irregular sample fixture 10.4.3 is movably arranged on the top surface of the sample base 10.4.2. The clamping degree adjustment button 10.4.6 is used to adjust the distance between the irregular sample fixtures 10.4.3, and the angle adjustment button 10.4.7 is used to adjust the tilting angle of the sample base 10.4.2.

[0034] The working process of this utility model:

[0035] When the utility model is used, it is placed on a flat table, and a suitable sample fixture 10 is selected according to the sample shape and the test surface, and the roughness meter 9 is placed on the anti-skid pad of the placement platform 3. The height of the placement platform 3 is roughly adjusted by visually adjusting the placement platform coarse adjustment knob 4.1, so that the stylus of the roughness meter 9 is slightly higher than the sample to be tested, and the roughness meter is turned on;

[0036] The rotation angle of the sample bracket 5 is adjusted by the bracket angle adjustment arm 7. When the limit groove 5.1 corresponding to the position of the sample to be tested rotates to the position of the clamping column 8.2, the clamping column 8.2 is pushed into the limit groove 5.1 under the action of the reset spring 8.6, so that the sample bracket 5 stops rotating. At this time, the pointer of the roughness meter 9 is aimed at the sample to be tested;

[0037] Finely adjust the height of the placement platform 3 by using the placement platform fine adjustment knob 4.2, so that the stylus of the roughness meter 9 and the side surface of the sample are located in the same straight line and slightly contact (the stylus position displayed on the roughness meter screen is 0 at this time), and test the surface roughness of the sample by the roughness meter 9 until the test is completed to obtain the roughness value;

[0038] When the test of the current test position is completed and the test of the sample of the next test position needs to be carried out, first, the height of the placement platform 3 is finely adjusted by the placement platform fine adjustment knob 4.2, so that the stylus of the roughness meter 9 is raised and leaves the current test sample, and then the rotary rod 8.5 is rotated to make the push rod 8.4 push the cam hole 8.3 backward, and push the clamping column 8.2 to move into the shell 8.1 and disengage from the limiting groove 5.1. At this time, the rotation angle of the sample bracket 5 is adjusted by the bracket angle adjustment arm 7. When it is rotated to the limiting groove 5.1 of the next test position, the rotary rod 8.5 is rotated again to make the push rod 8.4 disengage from the cam hole 8.3, and the clamping column 8.2 pushes into the limiting groove 5.1 under the action of the reset spring 8.6, and then the above test steps are repeated. After the test is completed, the experimental data is recorded and the roughness meter is closed.

Claims

1. A surface roughness testing tool suitable for various cross-sectional structures, characterized in that: The invention comprises a base (1), a support arm (2), a placement platform (3), a sample bracket (5), a bracket support arm (6), a roughness meter (9) and a sample fixture (10), wherein the support arm (2) is fixedly arranged on one side of the top surface of the base (1), the placement platform (3) is arranged on the upper part of the support arm (2) through an adjustable slider, and a placement platform adjustment knob (4) is arranged on the side wall of the adjustable slider, the roughness meter (9) is placed on the placement platform (3), the bracket support arm (6) is rotatably arranged on the other side of the top surface of the base (1), a plurality of bracket angle adjustment arms (7) are arranged on the side wall of the bracket support arm (6) for adjusting the rotation angle of the bracket support arm (6), the sample bracket (5) is fixedly arranged on the upper end of the bracket support arm (6), and the sample fixture (10) is arranged on the top surface of the bracket support arm (6).

2. A surface roughness testing tool suitable for various cross-sectional structures according to claim 1, characterized in that: The placement platform adjustment knob (4) comprises a placement platform coarse adjustment knob (4.1) and a placement platform fine adjustment knob (4.2); the placement platform coarse adjustment knob (4.1) is used for preliminary coarse adjustment of the height of the placement platform (3); and the placement platform fine adjustment knob (4.2) is used for further fine adjustment of the height of the placement platform (3).

3. The surface roughness testing tool applicable to various cross-sectional structures according to claim 1, characterized in that: A limiting device (8) is provided on the side wall of the placement platform (3) opposite to the sample bracket (5), and a limiting groove ( 5.1), the limiting device (8) comprises a housing (8.1), a clamping column (8.2), a push rod (8.4), a rotating rod (8.5) and a reset spring (8.6), the rear end of the housing (8.1) is fixedly arranged on the side wall of the placement platform (3) opposite to the sample bracket (5), the front end of the housing (8.1) is open, the clamping column (8.2) is arranged in the housing (8.1), and the front end of the clamping column (8.2) protrudes from the opening, and the rear end of the clamping column (8.2) is A cam hole (8.3) is provided, the rotary rod (8.5) passes through the side wall of the housing (8.1) and is arranged horizontally with the cam hole (8.3), the push rod (8.4) is arranged coaxially with the rotary rod (8.5), when the rotary rod (8.5) is rotated, the push rod (8.4) presses against the cam hole (8.3) backwards, and pushes the clamping column (8.2) to move into the housing (8.1), and the reset spring (8.6) is arranged between the rear end of the clamping column (8.2) and the housing (8.1).

4. The surface roughness testing tool applicable to various cross-sectional structures according to claim 1, characterized in that: An anti-slip pad is provided between the placement platform (3) and the roughness meter (9).

5. The surface roughness testing tool applicable to various cross-sectional structures according to claim 1, characterized in that: The sample clamp (10) comprises a cube clamp (10.1), a three-claw disc clamp (10.2), a slender block clamp (10.3) and an irregular sample clamp (10.4).

6. The surface roughness testing tool applicable to various cross-sectional structures according to claim 5, characterized in that: The irregular sample fixture (10.4) comprises two bases (10.4.1), a sample base (10.4.2), an irregular sample fixture (10.4.3), a clamping degree adjustment button (10.4.6) and an angle adjustment button (10.4.7); the two bases (10.4.1) are fixedly arranged on both sides of the top surface of the base of the irregular sample fixture (10.4); the sample base (10.4.2) is horizontally arranged between the two bases (10.4.1) via a rotating shaft; the irregular sample fixture (10.4.3) is movably arranged on the top surface of the sample base (10.4.2); the clamping degree adjustment button (10.4.6) is used to adjust the distance between the irregular sample fixtures (10.4.3); and the angle adjustment button (10.4.7) is used to adjust the tilting angle of the sample base (10.4.2).

7. The surface roughness testing tool applicable to various cross-sectional structures according to claim 6, characterized in that: An angle dial (10.4.4) is provided at one end of the sample base (10.4.2) connected to the base (10.4.1), and a pointer (10.4.5) is provided on the base (10.4.1) on the corresponding side.

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