Thickness measuring tool for apex for rubber tire

Abstract

The utility model discloses a tool for measuring the thickness of apex for a rubber tire, and the tool comprises a test platform which is provided with a horizontal plane used for placing an apex sample to be measured, and the upper surface of the test platform is provided with a reference line; the first reference separation blade is horizontally and fixedly arranged on the edge of the test platform and is perpendicular to the reference line, a scale line is arranged on the first reference separation blade in the extension direction of the first reference separation blade, and the starting point of the scale line is located at the reference line; the support comprises two vertical rods which are symmetrically arranged on the test platform, and a cross rod is connected between the tops of the two vertical rods; the transverse rod is parallel to the extending direction of the first reference separation blade; and the digital dial indicator is arranged on the cross rod in a sliding manner, the detection end of the digital dial indicator points downwards, and the detection end is used for moving along the inclined plane of the apex so as to measure the thickness of the apex at different positions. The apex thickness measuring tool solves the problem that an existing apex thickness measuring tool is large in measuring error.

Description

[Technical field]

[0001] The utility model belongs to the technical field of measuring apex rubber in tire bead components, and in particular relates to a thickness measuring tool for apex rubber used in rubber tires. [Background technology]

[0002] Tires are widely used in the field of transportation. They are composed of various parts. Apex is one of the important parts. Its size detection is very important to ensure product quality and safety. The size of apex directly affects the consistency, rigidity, ride quality and handling safety of tires.

[0003] In the detection of triangle rubber size, ruler and vernier caliper are commonly used detection tools. Detecting its width and thickness is an important basis for judging whether the triangle rubber is qualified. In order to achieve this detection, it is necessary to first use a ruler to measure whether the total width is qualified, and then use the ruler to mark the thickness at different widths of the triangle angle. There is a certain error in measuring the thickness due to the extrusion of the rubber itself by the marking, and there will be a certain error in aligning with the ruler's 0 scale and marking. In addition, the triangle angle is a slope, the vernier caliper support point is a plane, and the thickness measurement of the triangle angle is at least three points of thickness measurement. In addition, the rubber itself is elastic, and different people use different vernier calipers. The deformation of the rubber is inconsistent, resulting in inaccurate readings. In addition, conventional measurements cannot complete the point selection and thickness measurement at one time, which reduces the measurement efficiency, and may also affect the accuracy of the measurement results due to inaccurate markings. Therefore, developing a device that can accurately and efficiently measure the size of triangle angles is crucial to improving the accuracy and efficiency of measuring the size of triangle angles. [Contents of the utility model]

[0004] The utility model aims to provide a thickness measuring tool for apex rubber used in rubber tires, so as to solve the problem of large measurement error of existing apex rubber thickness measuring tools.

[0005] The utility model adopts the following technical scheme: a thickness measuring tool for apex rubber for rubber tires, the apex rubber sample to be measured is a prism structure, which has two end faces arranged oppositely, and three side faces are arranged around the two end faces, and the side faces are divided into a horizontal surface, a special-shaped surface and an inclined surface, and the thickness measuring tool comprises:

[0006] A test platform, the upper surface of which is used to place the horizontal surface of the apex sample to be tested, and the upper surface of the test platform is provided with a reference line, which is used to align with the first reference line of the apex sample; the first reference line is the boundary line between the profiled surface and the horizontal surface;

[0007] A first reference baffle, horizontally fixedly arranged at the edge of the test platform and perpendicular to the reference line, with scale lines arranged along the extension direction of the first reference baffle, and the starting point of the scale lines is located at the reference line; used to align with the second reference line of the apex sample; the second reference is the boundary line between one end face of the apex sample to be tested and the horizontal plane;

[0008] A bracket, comprising two vertical poles symmetrically arranged on the test platform, a cross bar connected between the tops of the two vertical poles; the cross bar is parallel to the extension direction of the first reference baffle;

[0009] A digital micrometer is slidably arranged on the crossbar, with its detection end pointing downward. The detection end is used to move along the inclined surface of the apex rubber to measure the thickness of the rubber at different positions.

[0010] Furthermore, it also includes a second reference baffle, which is parallel to the first reference baffle and is slidably arranged on the test platform; the bottom of the second reference baffle has a protruding guide block, and a first slide groove is arranged on the test platform at a position corresponding to the guide block, and the axial direction of the first slide groove is parallel to the reference line.

[0011] Furthermore, a third reference baffle is included, which is vertically arranged between the first reference baffle and the second reference baffle, and the inner edge of the third reference baffle coincides with the reference line.

[0012] Furthermore, a sliding rod is connected to the rear side of the dial of the digital micrometer, a second sliding groove is arranged on the cross bar along its axial direction, and the free end of the sliding rod is embedded in the second sliding groove.

[0013] The beneficial effect of the utility model is that there is no positioning device for the apex sample to be tested in conventional means, while the utility model adopts several baffles for positioning, and this positioning method has higher accuracy and stability. The baffle positioning mechanism physically limits the position of the sample to ensure that the sample can be accurately aligned with the 0 scale, thereby ensuring the accuracy of the mark by reading the value. This design not only improves the accuracy of the mark, but also improves the reliability of the detection.

Brief Description of the Drawings

[0014] Figure 1 This is a structural schematic diagram of Example 1 of a thickness measuring tool for apex rubber used in a rubber tire according to the utility model;

[0015] Figure 2 for Figure 1 A top view of

[0016] Figure 3 This is a schematic structural diagram of Example 2 of a thickness measuring tool for apex rubber for a rubber tire according to the utility model;

[0017] Figure 4This is a schematic structural diagram of Embodiment 3 of a thickness measuring tool for apex rubber for a rubber tire according to the utility model;

[0018] Figure 5 For Figure 4 Schematic diagram of the use status under the AA section angle;

[0019] Figure 6 It is a schematic structural diagram of the apex rubber sample to be tested in the utility model.

[0020] Among them, 1. test platform, 2. apex rubber sample to be tested, 21. end face, 22. horizontal plane, 23. special-shaped surface, 24. inclined plane, 25. first reference line, 26. second reference line, 3. reference line, 4. first reference baffle, 5. bracket, 51. vertical pole, 52. horizontal pole, 53. second slide, 6. digital micrometer, 61. detection end, 62. dial, 7. second reference baffle, 8. first slide, 9. third reference baffle, 10. sliding rod. [Specific implementation method]

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0022] The utility model provides a thickness measuring tool for apex rubber used in rubber tires, such as Figure 6 As shown, the apex bead sample 2 to be tested is a prism structure, which has two end faces 21 arranged opposite to each other, and three side faces are arranged around the two end faces 21, and the side faces are divided into a horizontal surface 22, a special-shaped surface 23 and an inclined surface 24. The first reference line 25 is the boundary line between the special-shaped surface 23 and the horizontal surface 22. The second reference line 26 is the boundary line between one end face 21 of the apex bead sample 2 to be tested and the horizontal surface 22.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, the thickness measuring tool includes a test platform 1, a first reference baffle 4, a bracket 5 and a digital micrometer 6.

[0025] The upper part of the test platform 1 is provided with a horizontal surface 22 for placing the apex sample 2 to be tested, and the upper surface of the test platform 1 is provided with a reference line 3, which is used to align with the first reference line 25 of the apex sample.

[0026] The first reference baffle 4 is horizontally fixedly arranged at the edge of the test platform 1 and is perpendicular to the reference line 3. The first reference baffle 4 is provided with scale lines along its extension direction, and the 0 scale of the scale lines is located at the reference line 3. The first reference baffle 4 is used to align with the second reference line 26 of the apex sample.

[0027] After the first reference line 25 and the second reference line 26 are aligned with the reference line 3 and the first reference baffle 4 respectively, the apex sample 2 to be measured can be accurately located at the starting measurement position of the scale line. And by ensuring that the end face 21 is aligned with the first reference baffle 4, the size read from the scale line can be closer to the actual size of the apex sample 2 to be measured.

[0028] The bracket 5 includes two vertical rods 51 symmetrically arranged on the test platform 1, and a cross bar 52 is connected between the tops of the two vertical rods 51; the cross bar 52 is parallel to the extension direction of the first reference baffle 4. The digital micrometer 6 is slidably arranged on the cross bar 52, and its detection end 61 points downward. The detection end 61 is used to move along the inclined surface 24 of the apex to measure the thickness of the rubber at different positions. The detection end 61 of the digital micrometer 6 is spherical, which can avoid the problem of false contact caused by the slope of the triangle angle.

[0029] The utility model provides a thickness measuring tool for rubber apex for rubber tires, which can measure the size of the apex sample 2 to be tested along the direction of the second reference line 26, and can also measure the thickness of the rubber material at different positions, thereby greatly improving the detection efficiency.

[0030] Example 2

[0031] like Figure 3 As shown, based on the structure of Example 1, it also includes a second reference baffle 7, which is parallel to the first reference baffle 4 and is slidably set on the test platform 1; the bottom of the second reference baffle 7 has a protruding guide block, and a first slide groove 8 is set on the test platform 1 at the position corresponding to the guide block, and the axial direction of the first slide groove 8 is parallel to the reference line 3.

[0032] The second reference baffle 7 slides in the first slide groove 8 through the guide block at the bottom, so that the distance between the second reference baffle 7 and the first reference baffle 4 can be adjusted to accommodate the placement of apex samples 2 to be tested of different sizes.

[0033] Example 3

[0034] like Figure 4 As shown, based on the structure of Example 2, a third reference baffle 9 is further included, which is vertically arranged between the first reference baffle 4 and the second reference baffle 7, and the inner edge of the third reference baffle 9 coincides with the reference line 3. By setting the third reference baffle 9, it is easier to operate when inserting the apex sample 2 to be tested, and the positioning is more accurate.

[0035] In some embodiments, Figure 2-Figure 4 As shown, the rear side of the dial 62 of the digital micrometer 6 is connected to the sliding rod 10 , and a second sliding groove 53 is provided on the cross bar 52 along its axial direction, and the free end of the sliding rod 10 is embedded in the second sliding groove 53 .

[0036] The utility model discloses a method of using a thickness measuring tool for a rubber apex rubber tire as follows:

[0037] S1. Preparation: Ensure that all parts of a thickness measuring tool for a rubber tire apex are intact, and prepare the apex sample 2 to be tested.

[0038] S2. Place the sample: place the horizontal surface 22 of the apex sample 2 to be tested on the test platform 1, align the second reference line 26 with the first reference baffle 4, and then align the first reference line 25 of the apex sample 2 to be tested with the reference line 3; the first reference line 25 of the apex can also be aligned with the third reference baffle 9; the second reference baffle 7 can also be slid and pressed against one end surface of the apex sample 2 to be tested to fix the position of the apex sample 2 to be tested.

[0039] S3. Reading: Read the width value of the apex sample 2 to be tested through the scale line on the first reference baffle 4.

[0040] S4. Thickness measurement: pull up the detection end 61 of the digital micrometer, slide the digital micrometer to the position where the thickness needs to be measured, release the detection end 61 of the digital micrometer, and make the pointer of the detection end 61 contact with the inclined surface of the apex sample 2 to be measured.

[0041] The position where the thickness needs to be measured can be located with the help of the scale lines on the first reference baffle 4, and the pointer of the detection end 61 can be aligned with a scale line on the first reference baffle 4. Whether the alignment can be completed with the help of a right-angled triangle ruler.

[0042] S5. Read the value: Read and record the value displayed by the digital micrometer at this time.

[0043] S6. Repeat the operations of steps S5 and S6 to complete the thickness measurement of different positions of the apex sample 2 to be tested.

[0044] The utility model discloses a thickness measuring tool for apex rubber of rubber tire, which adopts flat parts for positioning measurement to avoid stretching and deformation of parts, adopts micrometer to measure thickness to avoid deformation caused by up and down support of vernier caliper, and the accuracy is increased to 0.001mm compared with the previous 0.02mm, and the width positioning and thickness measurement of the thickness measuring tool are completed in the same step, which reduces the positioning error of measuring thickness at the marked point after positioning the marks and then measuring again according to the marked points by vernier caliper compared with using a ruler to mark the marks.

[0045] In summary, the utility model is characterized by its unique baffle positioning mechanism, adjustable design of measuring position and high-efficiency measuring capability. These features make the utility model superior to conventional means in terms of accuracy, adaptability and efficiency, and therefore cannot be easily achieved by conventional means. These innovative points reflect the technological progress and innovation of the utility model, and bring substantial improvement and enhancement to the measuring process.

Claims

1. A thickness measuring tool for apex rubber for rubber tires, wherein the apex rubber sample (2) to be measured is a prism structure, having two end faces (21) arranged opposite to each other, and three side faces arranged around the two end faces (21), wherein the side faces are divided into a horizontal face (22), a special-shaped face (23) and an inclined face (24), and characterized in that: The thickness measuring tool comprises: A test platform (1), above which is a horizontal plane (22) for placing the apex sample (2) to be tested, a reference line (3) being arranged on the upper surface of the test platform (1), the reference line (3) being used to align with a first reference line of the apex sample; the first reference line being the boundary line between the profiled surface (23) and the horizontal plane (22); a first reference baffle (4), horizontally fixedly arranged on the edge of the test platform (1) and perpendicular to the reference line (3), with scale lines arranged on it along the extension direction of the first reference baffle (4), the starting point of the scale lines being located at the reference line (3); and used for aligning with a second reference line of the apex sample; the second reference being the boundary line between an end face (21) of the apex sample (2) to be tested and a horizontal plane (22); A bracket (5) comprising two vertical poles (51) symmetrically arranged on the test platform (1), a cross bar (52) being connected between the tops of the two vertical poles (51); the cross bar (52) being parallel to the extension direction of the first reference baffle (4); A digital micrometer (6) is slidably disposed on the crossbar (52), with a detection end (61) pointing downward. The detection end (61) is used to move along the inclined surface (24) of the apex rubber to measure the thickness of the rubber at different positions.

2. The thickness measuring tool for rubber apex rubber used in a rubber tire as claimed in claim 1, characterized in that: It also includes a second reference baffle (7), which is parallel to the first reference baffle (4) and is slidably arranged on the test platform (1); the bottom of the second reference baffle (7) has a protruding guide block, and a first slide groove (8) is arranged on the test platform (1) at a position corresponding to the guide block, and the axial direction of the first slide groove (8) is parallel to the reference line (3).

3. The thickness measuring tool for rubber apex rubber tire according to claim 2, characterized in that: It also includes a third reference baffle (9), which is vertically arranged between the first reference baffle (4) and the second reference baffle (7), and the inner edge of the third reference baffle (9) coincides with the reference line (3).

4. A thickness measuring tool for rubber tire apex as claimed in claim 1 or 2, characterized in that: A sliding rod (10) is connected to the rear side of the dial (62) of the digital display micrometer (6), a second sliding groove (53) is provided on the cross bar (52) along its axial direction, and the free end of the sliding rod (10) is embedded in the second sliding groove (53).

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