A method for measuring side ground line offset angle

Abstract

The present invention relates to a method for measuring the side ground wire offset angle, which is carried out according to the following steps: take a section of cable to be tested that is L centimeters long, ensure that the cable to be tested is undamaged and remains flat and straight, and the ground wire and core wire of the cut cable to be tested cannot be damaged or bent; use a flat surface on one side of the cable to be tested as a reference reference surface, and place the reference reference surface horizontally on an auxiliary fixture so that the ground wire of the cable to be tested is located on the upper and lower sides or on the upper side, and one end of the cable to be tested is exposed from the auxiliary fixture by M centimeters; measure the thickness H of the cable to be tested; measure the distance h from the center of the upper or lower ground wire of the cable to be tested to the reference reference surface; peel the cable to be tested, measure the wire diameter D1 of its ground wire; measure the wire diameter D2 of its core wire; open a calculation tool, input relevant measurement data, and automatically calculate the ground wire offset angle α. This solution is suitable for measurement and evaluation in product development or production control, and meets the demand for precise control of the position of the side ground wire of cable products.

Description

Technical Field

[0001] The present invention relates to the field of cable products, and in particular to a method for measuring a side ground wire offset angle. Background Art

[0002] like Figure 1 As shown, existing methods for measuring the ground wire offset angle of twin-core cables with ground wires on both sides (or one side) involve cutting or gluing and grinding samples to form a cross-section. The offset and angle of the ground wire position in the cross-section are then observed or measured. Cutting can easily deform the ground wire and core, shifting the ground wire position and preventing accurate assessment of the actual ground wire offset. Gluing and grinding require the use of a glue potting machine and a grinding and polishing machine, which carries high costs for additional equipment and consumables. This process typically takes at least one to two hours, making rapid measurement and assessment impossible.

[0003] In order to overcome these problems, this solution provides a side ground line offset angle measurement method. Summary of the Invention

[0004] The present invention aims to address the problems of existing cutting methods that easily cause deformation of the ground wire and core wire, making it impossible to accurately measure and assess the actual ground wire offset, and the high cost of additional equipment and consumables, long time consumption, and inability to quickly measure and assess the glue-filling and grinding methods. The specific solutions are as follows:

[0005] A method for measuring the side ground wire offset angle is used to measure the ground wire offset angle of a cable product with ground wires on both sides or one side of a twin-core cable. The cross section of the cable product is flat. The method is performed in the following steps:

[0006] Step 1: Take a L cm long section of the cable to be tested. Make sure it is undamaged and straight. The ground wire and core wire of the cable to be tested must not be damaged or bent.

[0007] Step 2: Use the flat surface of one side of the cable to be tested as the reference plane. Place the reference plane horizontally on the auxiliary fixture, so that the ground wire of the cable to be tested is located on the upper and lower sides or the upper side, and one end of the cable to be tested is exposed M centimeters from the auxiliary fixture.

[0008] Step 3, measuring the thickness H of the cable to be tested;

[0009] Step 4, measuring the distance h from the center of the upper or lower ground wire of the cable to be tested to the reference plane;

[0010] Step 5: Strip the cable to be tested and measure the diameter D1 of its ground wire;

[0011] Step 6, measuring the wire diameter D2 of the core wire;

[0012] Step 7: Open the calculation tool, enter the relevant measurement data into the corresponding project, and automatically calculate the ground line offset angle α.

[0013] Furthermore, the method for measuring the thickness H of the cable to be tested in step 3 is: measuring with any one of a thickness gauge, a micrometer, an infrared dimension measuring instrument, or a two-dimensional image measuring instrument.

[0014] Furthermore, the method for measuring the distance h from the center of the upper or lower ground wire of the cable to be tested to the reference datum plane in step 4 is: measuring with a two-dimensional image measuring instrument.

[0015] Furthermore, the method for measuring the diameter D1 of the ground wire in step 5 is: measuring it using any one of a thickness gauge, a micrometer, or an infrared dimension measuring instrument.

[0016] Furthermore, the method for measuring the wire diameter D2 of the core wire in step 6 is: measuring it using any one of a thickness gauge, a micrometer, or an infrared size measuring instrument.

[0017] Furthermore, the calculation tool in step 7 is an Excel calculation tool, which includes the calculation formula:

[0018]

[0019] Optionally, the auxiliary fixture in step 2 is a rectangular body having a length greater than L, a height greater than the width of the cable to be tested, and a thickness greater than H. One side of the height surface of the rectangular body is provided with a horizontal strip groove for accommodating the cable to be tested along the length direction. The strip groove is located at the upper edge of the height surface of the rectangular body or in the middle of the height surface of the rectangular body.

[0020] Optionally, the auxiliary fixture in step 2 is a rectangular body having a length greater than L, a height greater than the width of the cable to be tested, and a thickness greater than H. A horizontal strip of double-sided tape for adhering to the cable to be tested is provided on one side of the height surface of the rectangular body along the length direction. The strip of double-sided tape is located at the upper edge of the height surface of the rectangular body or in the middle of the height surface of the rectangular body.

[0021] In summary, the technical solution of the present invention has the following beneficial effects:

[0022] This invention solves the problems of existing cutting methods that easily deform the ground wire and core wire, making it impossible to accurately measure and assess the actual ground wire offset. The glue-filling and grinding method also requires high equipment and consumables costs, is time-consuming, and cannot achieve rapid measurement and assessment. This solution can quickly measure and assess the offset position of dual or single side ground wires, and can also quantitatively measure the angle and position. The measurement can be completed within 3 minutes. This low-cost and rapid measurement and assessment makes it ideally suited for measurement and assessment in product development or production control, meeting the demand for rapid and precise control of the side ground wire position of cable products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below only represent a portion of the embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0024] Figure 1 A schematic diagram of an existing measurement method in the background art;

[0025] Figure 2 This is a schematic diagram of a side ground line offset angle measurement method of the present invention;

[0026] Figure 3 is a schematic diagram of the auxiliary measurement tool of the present invention;

[0027] Figure 4 This is a right side view of the auxiliary measuring tool according to embodiment 1 of the present invention;

[0028] Figure 5 This is a right side view of the auxiliary measuring tool according to embodiment 2 of the present invention;

[0029] Figure 6 This is a right side view of the auxiliary measuring tool according to embodiment 3 of the present invention;

[0030] Figure 7 This is a right side view of the auxiliary measuring tool according to embodiment 4 of the present invention.

[0031] Description of reference numerals:

[0032] 1-cable to be tested, 2-auxiliary fixture, 3-double-sided tape strip, S-reference datum plane, 11-ground wire, 12-core wire, 21-strip groove. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention aims to address the problems of existing cutting methods that easily cause deformation of the ground wire and core wire, making it impossible to accurately measure and assess the actual ground wire offset, and the high cost of additional equipment and consumables, long time consumption, and inability to quickly measure and assess the glue-filling and grinding methods. The specific solutions are as follows:

[0035] like Figure 2 、 3 As shown, a side ground wire offset angle measurement method is used to measure the ground wire offset angle of a cable product with ground wires on both sides or one side of a twin-core cable. The cross-section of the cable product is flat. The following steps are performed:

[0036] Step 1: Take a length of L cm (e.g. 10 cm) of the cable 1 to be tested. Ensure that the cable 1 to be tested is undamaged and remains flat and straight. The ground wire 11 and core wire 12 of the cable 1 to be tested must not be damaged or bent.

[0037] Step 2: Use the flat surface of one side of the cable 1 to be tested as the reference reference surface S. Place the reference reference surface S horizontally on the auxiliary fixture 2, so that the ground wire 11 of the cable 1 to be tested is located on the upper and lower sides or the upper side, and one end of the cable 1 to be tested is exposed from the auxiliary fixture by M centimeters (for example, 3 centimeters);

[0038] Step 3, measuring the thickness H of the cable 1 to be tested;

[0039] Step 4: Measure the distance h from the center of the upper or lower ground wire 11 of the cable to be tested to the reference plane S (h is the vertical distance).

[0040] Step 5: peel off the cable 1 to be tested and measure the diameter D1 of its ground wire 11;

[0041] Step 6, measuring the wire diameter D2 of the core wire 12;

[0042] Step 7: Open the calculation tool and enter the relevant measurement data into the corresponding project to automatically calculate the ground line 11 offset angle α. (The relevant measurement data refers to H, h, D1, and D2 data)

[0043] Specifically, the method for measuring the thickness H of the cable 1 to be tested in step 3 is: using any one of a thickness gauge, a micrometer, an infrared dimension measuring instrument, or a two-dimensional image measuring instrument to measure.

[0044] Specifically, the method for measuring the distance h from the center of the upper or lower ground wire 11 of the cable 1 to be tested to the reference datum plane S in step 4 is: measuring it using a two-dimensional image measuring instrument.

[0045] Specifically, the method for measuring the wire diameter D1 of the ground wire 11 in step 5 is: measuring it with any one of a thickness gauge, a micrometer, or an infrared dimension measuring instrument.

[0046] Specifically, the method for measuring the wire diameter D2 of the core wire 12 in step 6 is: measuring it with any one of a thickness gauge, a micrometer, or an infrared size measuring instrument.

[0047] Specifically, the calculation tool in step 7 is Excel calculation tool, which includes the calculation formula:

[0048]

[0049] The measurement principle of this scheme is: use a two-dimensional image measuring instrument to measure the distance h from the center of the upper or lower side ground wire 11 of the cable 1 to be measured to the reference datum plane S, and then subtract it from half of the thickness H of the cable 1 to obtain the distance h1 from the center of the ground wire 11 to the thickness center line m of the cable 1, and then calculate the distance R1 from the center of the ground wire 11 to the center of the core wire 12 by the wire diameter D1 of the ground wire 11 and the wire diameter D2 of the core wire 12. The thickness center lines m, h1, and R1 form a right triangle. According to the trigonometric function relationship, the angle between the thickness center line m and R1 can be calculated, which is the offset angle α of the ground wire 11.

[0050] The auxiliary fixture 2 of the present invention has the following four embodiments:

[0051] Example 1:

[0052] like Figure 4 As shown, the auxiliary fixture 2 in step 2 is a rectangular body with a length greater than L, a height greater than the width of the cable 1 to be tested, and a thickness greater than H. A horizontal strip groove 21 for accommodating the cable 1 to be tested is provided on one side of the height surface of the rectangular body along the length direction. The strip groove 21 is located at the upper edge of the height surface of the rectangular body.

[0053] Example 2:

[0054] like Figure 5 As shown, the difference from Example 1 is that the strip groove 21 is located in the middle of the height surface of the rectangular body. The rest of the contents are the same as Example 1.

[0055] Example 3:

[0056] like Figure 6As shown, in step 2, the auxiliary fixture 2 is a rectangular body with a length greater than L, a height greater than the width of the cable to be tested, and a thickness greater than H. A horizontal strip of double-sided tape 3 is provided along the length of one side of the height surface of the rectangular body for adhering to the cable to be tested 1. The strip of double-sided tape 3 is located at the upper edge of the height surface of the rectangular body.

[0057] Example 4:

[0058] like Figure 7 As shown, the difference from Example 3 is that the strip-shaped double-sided tape 3 is located in the middle of the height surface of the rectangular body. The rest of the contents are the same as Example 3.

[0059] The specific measurement records of the present invention are as follows:

[0060] The table contains measurement records for 30 cables under test. Repeated verification has proven this solution is convenient, fast, feasible, and provides accurate measurement results. It has now been applied to a variety of cable products.

[0061]

[0062]

[0063] In summary, the technical solution of the present invention has the following beneficial effects:

[0064] This invention solves the problems of existing cutting methods that easily deform the ground wire and core wire, making it impossible to accurately measure and assess the actual ground wire offset. The glue-filling and grinding method also requires high equipment and consumables costs, is time-consuming, and cannot achieve rapid measurement and assessment. This solution can quickly measure and assess the offset position of dual or single side ground wires, and can also quantitatively measure the angle and position. The measurement can be completed within 3 minutes. This low-cost and rapid measurement and assessment makes it ideally suited for measurement and assessment in product development or production control, meeting the demand for rapid and precise control of the side ground wire position of cable products.

[0065] The above-described embodiments do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the scope of protection of this technical solution.

Claims

1. A method for measuring the side ground wire offset angle, used to measure the ground wire offset angle of a cable product with ground wires on both sides or one side of a twin-core cable, wherein the cross section of the cable product is flat, characterized in that: Follow these steps: Step 1: Take a L cm long section of the cable to be tested. Make sure it is undamaged and straight. The ground wire and core wire of the cable to be tested must not be damaged or bent. Step 2: Use the flat surface of one side of the cable to be tested as the reference plane. Place the reference plane horizontally on the auxiliary fixture, so that the ground wire of the cable to be tested is located on the upper and lower sides or the upper side, and one end of the cable to be tested is exposed M centimeters from the auxiliary fixture. Step 3, measuring the thickness H of the cable to be tested; Step 4, measuring the distance h from the center of the upper or lower ground wire of the cable to be tested to the reference plane; Step 5: Strip the cable to be tested and measure the diameter D1 of its ground wire; Step 6, measuring the wire diameter D2 of the core wire; Step 7: Open the calculation tool, enter the relevant measurement data into the corresponding project, and automatically calculate the ground line offset angle α.

2. The method for measuring a side ground line offset angle according to claim 1, wherein: The method for measuring the thickness H of the cable to be tested in step 3 is: measuring with any one of a thickness gauge, a micrometer, an infrared dimension measuring instrument, or a two-dimensional image measuring instrument.

3. The method for measuring a side ground line offset angle according to claim 1, wherein: The method for measuring the distance h from the center of the upper or lower ground wire of the cable to be tested to the reference datum plane in step 4 is: measuring it using a two-dimensional image measuring instrument.

4. The method for measuring a side ground line offset angle according to claim 1, wherein: The method for measuring the diameter D1 of the ground wire in step 5 is: measuring it using any one of a thickness gauge, a micrometer, or an infrared size measuring instrument.

5. The method for measuring a side ground line offset angle according to claim 1, wherein: The method for measuring the wire diameter D2 of the core wire described in step 6 is: measuring it using any one of a thickness gauge, a micrometer, or an infrared size measuring instrument.

6. The method for measuring a side ground line offset angle according to claim 1, wherein: The auxiliary fixture in step 2 is a rectangular body with a length greater than L, a height greater than the width of the cable to be tested, and a thickness greater than H. One side of the height surface of the rectangular body is provided with a horizontal strip groove for accommodating the cable to be tested along the length direction.

7. The method for measuring a side ground line offset angle according to claim 6, wherein: The strip-shaped groove is located at the upper edge of the height surface of the rectangular body or at the middle of the height surface of the rectangular body.

8. The method for measuring a side ground line offset angle according to claim 1, wherein: The auxiliary fixture in step 2 is a rectangular body whose length is greater than L, whose height is greater than the width of the cable to be tested, and whose thickness is greater than H. One side of the height surface of the rectangular body is provided with a horizontal strip of double-sided tape along the length direction for sticking the cable to be tested.

9. The method for measuring a side ground line offset angle according to claim 8, wherein: The strip-shaped double-sided adhesive tape is located at the upper edge of the height surface of the rectangular body or at the middle of the height surface of the rectangular body.

10. The method for measuring a side ground line offset angle according to claim 1, wherein: The calculation tool described in step 7 is Excel calculation tool, which includes the calculation formula:

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