A cable shield braiding density measuring device

Abstract

This invention provides a cable shielding layer braiding density measuring device, including a base, and further including a front clamping assembly, a braiding layer observation assembly, a rear clamping assembly, and a single-wire measurement assembly sequentially arranged on the base. The single-wire measurement assembly is used to measure the single-wire diameter d of the single filament in the braiding layer. A gap is provided between the braiding layer observation assembly and the rear clamping assembly to allow a vernier caliper to pass through. The vernier caliper is used to measure the outer diameter D of the braiding layer. The braiding layer observation assembly is used to observe the unidirectional spindle number m of the braiding layer. i The cable shield braid density measuring device provided by this utility model, through the controller controlling the front clamping assembly, the rear clamping assembly, the single-wire measurement assembly, and the braided layer observation assembly, realizes the clamping of the cable, the observation and measurement of the braided layer, and the data acquisition of the single-wire diameter, avoiding the cumulative error of traditional step-by-step measurement, reducing manual operation steps, and improving measurement efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, specifically to a cable shielding layer braiding density measuring device. Background Technology

[0002] The cable shielding layer is a crucial component of the cable structure, primarily functioning to suppress electromagnetic interference, improve signal transmission quality, and provide mechanical protection. The braiding density of the shielding layer is a key indicator for evaluating its shielding effectiveness, directly impacting the cable's electrical performance and reliability. Currently, the measurement of cable shielding braiding density is mostly done manually. Specifically, the outer diameter D of the braided layer is first measured using calipers, and then the number of unidirectional spindles (m) is observed and counted using tools such as a magnifying glass. i The number of strands per spindle (n) and the pitch (L) are calculated by measuring the diameter of the single filament (d) with a micrometer, and the total number of spindles (m = 2m) is determined. i According to the requirements of JB / T8734.1-2016 standard, the braiding density of the shielding layer, k, is calculated to be (2k f -k f 2 ) × 100%, where k f = (mnd / 2L)[(1+L) 2 / π 2 D 2 ) 1 / 2 Alternatively, according to the requirements of GB / T 9330-2020 standard, the braiding density of the shielding layer can be calculated as p = (2p - p). 2 ) × 100%, where p = (m i nd / πD)[(1+π 2 D 2 / L 2 ) 1 / 2 However, measuring cable shielding often requires the collaboration of multiple people and relies on the operator's experience. In particular, when counting braiding parameters, data distortion can easily occur due to visual fatigue or angular deviation.

[0003] Existing methods for measuring cable shielding require multiple cable clamping operations, which are not only cumbersome and inefficient, but also often result in poor accuracy due to repeated clamping, making it difficult to meet the demands of modern production for efficient and high-precision testing. This solution addresses these technical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cable shield braid density measuring device. By controlling the front clamping component, the rear clamping component, the single-wire measurement component, and the braided layer observation component through a controller, the device realizes the clamping of the cable, the observation and measurement of the braided layer, and the data acquisition of the single-wire diameter. This avoids the cumulative error of traditional step-by-step measurement, reduces manual operation steps, and improves measurement efficiency and accuracy.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cable shielding layer braiding density measuring device, including a base, and further including a front clamping assembly, a braiding layer observation assembly, a rear clamping assembly, and a single-wire measuring assembly sequentially arranged on the base. The single-wire measuring assembly is used to measure the single-wire diameter d of the single filament in the braiding layer. A gap is provided between the braiding layer observation assembly and the rear clamping assembly to allow a vernier caliper to pass through. The vernier caliper is used to measure the outer diameter D of the braiding layer. The braiding layer observation assembly is used to observe the unidirectional spindle number m of the braiding layer. i The number of strands per spindle (n) and the pitch (L) are specified. A controller is provided on the pedestal, and the front clamping assembly, the braided layer observation assembly, the rear clamping assembly, and the single-wire measurement assembly are all electrically connected to the controller.

[0006] The front clamping assembly includes a support ring disposed on the base, a rotating ring rotatably disposed on the side of the support ring, and an electric gripper disposed on the rotating ring. A motor is disposed on the base, and a gear is disposed at the output end of the motor. A gear ring is disposed on the outer side of the rotating ring, and the gear meshes with the gear ring.

[0007] Both the support ring and the rotating ring are provided with clearance grooves that allow cables to pass through. The cables pass through the clearance grooves and are detachably connected to the electric grippers.

[0008] The rear clamping assembly is the same as the front clamping assembly, and the electric grippers and motors of both the front and rear clamping assemblies are electrically connected to the controller.

[0009] A photoelectric sensor one for detecting the passage of a cable is disposed on the platform near the front clamping assembly, and a photoelectric sensor two for detecting the passage of a cable is disposed on the platform near the rear clamping assembly. Both photoelectric sensor one and photoelectric sensor two are electrically connected to the controller.

[0010] The braided layer observation assembly includes a scale and a magnifying glass respectively disposed on both sides of the braided layer. A vertical pole is disposed on the pedestal near the scale. A support block is swayably disposed on the vertical pole. A laser emitter is disposed on the support block facing the side of the braided layer. The laser emitter is electrically connected to the controller.

[0011] The upright is equipped with a supplementary light for illuminating the woven layer, and the supplementary light is electrically connected to the controller.

[0012] The single-wire measuring component includes a laser diameter gauge for measuring the diameter d of a single wire, and two electric grippers, a second electric gripper and a third electric gripper, respectively disposed on both sides of the laser diameter gauge. The second electric gripper and the third electric gripper are detachably clamped at both ends of the braided layer. The second electric gripper, the laser diameter gauge, and the third electric gripper are electrically connected to the controller.

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

[0014] (1) By controlling the front clamping assembly, the rear clamping assembly, the single-wire measurement assembly and the braided layer observation assembly through the controller, the clamping of the cable, the observation and measurement of the braided layer and the data acquisition of the single wire diameter are realized, avoiding the cumulative error of traditional step-by-step measurement, reducing manual operation links, and improving measurement efficiency and measurement accuracy.

[0015] (2) The controller controls the rotation of the clamping assembly by controlling the gear and gear ring structure driven by the motor, which can accurately drive the cable braided layer to rotate slowly and uniformly. Combined with laser marking and scale reading, it is convenient to observe the braided layer and realizes high-precision measurement of pitch L. Compared with manual rotation, this measuring device is more stable.

[0016] (3) The identification clarity of the braided layer structure (such as the number of spindles and the number of threads) was improved by supplementary lighting and magnifying glass. The laser emitter and the scale were used to achieve precise positioning of the circumferential and longitudinal marks, which further ensured the accuracy of parameter reading.

[0017] (4) The front and rear clamping components are symmetrically designed and have clearance grooves, which facilitates the quick clamping of cables; the photoelectric sensor automatically triggers the clamping action, and the single wire measuring component automatically clamps and measures the diameter of the single wire, which simplifies the operation process, improves the operation efficiency, and reduces human intervention error. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the front clamping assembly of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the structure of the front clamping assembly of this utility model. Figure 2 ;

[0022] Figure 5This is a schematic diagram of the structure of the braided layer observation component of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the laser diameter measuring instrument of this utility model;

[0024] Figure 7 This is a schematic diagram of the cable braided layer.

[0025] In the diagram: 1. Base; 2. Front clamping assembly; 21. Support ring; 22. Rotating ring; 221. Gear ring; 23. Electric gripper one; 24. Motor; 241. Gear; 25. Clearance groove; 26. Photoelectric sensor one; 3. Braided layer observation assembly; 31. Scale; 32. Magnifying glass; 33. Upright pole; 331. Bearing block; 34. Laser emitter; 35. Supplemental light; 4. Rear clamping assembly; 41. Photoelectric sensor two; 5. Single-wire measurement assembly; 51. Laser diameter gauge; 52. Electric gripper two; 53. Electric gripper three; 6. Vernier caliper; 7. Cable; 71. Braided layer; 72. Monofilament. Detailed Implementation

[0026] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0027] See Figures 1-7 A cable shield braid density measuring device includes a base 1, and further includes a front clamping assembly 2, a braid observation assembly 3, a rear clamping assembly 4, and a single-wire measuring assembly 5 sequentially arranged on the base 1. The single-wire measuring assembly 5 is used to measure the single wire diameter d of the single wire 72 in the braid layer 71. A gap is provided between the braid observation assembly 3 and the rear clamping assembly 4 to allow a vernier caliper 6 to pass through. The vernier caliper 6 is used to measure the outer diameter D of the braid layer 71. The braid observation assembly 3 is used to observe the unidirectional spindle number m of the braid layer 71. i The number of strands per spindle (n) and the pitch (L) are specified. A controller is installed on the base 1, and the front clamping assembly 2, the braided layer observation assembly 3, the rear clamping assembly 4, and the single-wire measurement assembly 5 are all electrically connected to the controller.

[0028] It should be noted that the vernier caliper 6 is implemented using existing technology, and will not be described in detail here.

[0029] The front clamping assembly 2 includes a support ring 21 disposed on the base 1, a rotating ring 22 rotatably disposed on the side of the support ring 21, and an electric gripper 23 disposed on the rotating ring 22. A motor 24 is disposed on the base 1, a gear 241 is disposed at the output end of the motor 24, and a gear ring 221 is disposed on the outer side of the rotating ring 22. The gear 241 meshes with the gear ring 221.

[0030] Both the support ring 21 and the rotating ring 22 are provided with clearance grooves 25 that allow the cable 7 to pass through. The cable 7 passes through the clearance grooves 25 and is detachably connected to the electric gripper 23.

[0031] The rear clamping assembly 4 is the same as the front clamping assembly 2. The electric gripper 23 and motor 24 of both the front clamping assembly 2 and the rear clamping assembly 4 are electrically connected to the controller.

[0032] A photoelectric sensor 26 for detecting the passage of cable 7 is provided on the base 1 near the front clamping assembly 2, and a photoelectric sensor 41 for detecting the passage of cable 7 is provided on the base 1 near the rear clamping assembly 4. Both photoelectric sensor 26 and photoelectric sensor 41 are electrically connected to the controller.

[0033] The braided layer observation component 3 includes a scale 31 and a magnifying glass 32 respectively set on both sides of the braided layer 71. A pole 33 is set on the base 1 near the scale 31. A support block 331 is swayably set on the pole 33. A laser emitter 34 is set on the support block 331 facing the side of the braided layer 71. The laser emitter 34 is electrically connected to the controller.

[0034] The pole 33 is equipped with a supplementary light 35 for illuminating the braided layer 71, and the supplementary light 35 is electrically connected to the controller.

[0035] The single-wire measuring component 5 includes a laser diameter gauge 51 for measuring the diameter d of a single wire, and electric grippers 52 and 53 respectively disposed on both sides of the laser diameter gauge 51. The electric grippers 52 and 53 can be detachably clamped at both ends of the braided layer 71. The electric grippers 52, the laser diameter gauge 51 and the electric grippers 53 are electrically connected to the controller.

[0036] The specific working process of this utility model:

[0037] In use, firstly, a section of monofilament 72 is peeled off from the braided layer 71 of the cable 7. Then, one end of the cable 7 and one end of the monofilament 72 are held respectively, and the cable 7 is passed through the clearance groove 25 of the front clamping component 2 and the rear clamping component 4 in sequence. The photoelectric sensor 1 26 and the photoelectric sensor 2 41 detect the cable 7. The controller commands the electric jaw 1 23 of the front clamping component 2 and the rear clamping component 4 to clamp the braided layer 71 of the cable 7. At the same time, the controller controls the electric jaw 2 52 and the electric jaw 3 53 to clamp the monofilament 72 of the braided layer 71. At this time, the monofilament 72 is firmly clamped by the electric jaw 2 52 and the electric jaw 3 53. Then, the laser diameter measuring instrument 51 is started. The laser diameter measuring instrument 51 measures the single wire diameter d of the monofilament 72 and records the reading. After recording the reading, the root of the monofilament 72 with the braided layer 71 is cut off.

[0038] Then, the outer diameter of the braided layer 71 in the clamped state is measured using vernier calipers 6 to obtain the reading D. Next, the laser emitter 34 is activated and aligned with the zero mark on the scale 31. A circumferential mark is made on the outer side of the braided layer 71 at the laser-illuminated position using a marker pen. At this point, the circumferential mark on the braided layer 71 is aligned with the zero mark on the scale 31. The supplementary light 35 is activated by the controller to illuminate the braided layer 71. The number of strands n per spindle is observed, read, and recorded using a magnifying glass 32. The controller then sends a command to the motor 24, which drives the electric gripper 2. 3. Slow movement: The electric gripper 23 drives the cable 7 to rotate slowly for one revolution, while the braided layer 71 rotates for one revolution. During the rotation of the braided layer 71, observe along one spindle of the braided layer 71. After the braided layer 71 has rotated for one revolution, mark the longitudinal position of that spindle in the braided layer 71 with a marker. By rotating the support block 331 on the upright 33, the laser beam is emitted at the marked position on the braided layer 71. The laser beam is displayed on the scale 31. The reading on the scale 31 is the pitch L of the braided layer 71. Observe within the pitch L to read the number of unidirectional spindles m. i For the most common bidirectional braided structure, the total number of spindles m is equal to the number of unidirectional spindles m. i Twice, that is, m = 2m i Therefore, the total number of spindles within the pitch is m = 2m. i At this point, the outer diameter D of the braided layer 71, the diameter d of the monofilament 72, and the number of unidirectional spindles m i The total number of spindles m, the number of strands per spindle n, and the pitch L are all obtained. Then, the weaving density k can be calculated using the formula.

[0039] After measuring the braiding density k, the electric gripper 23 is controlled by the controller to remove the cable 7, thus completing the measurement of the braiding density.

[0040] By controlling the front clamping assembly 2 and the rear clamping assembly 4, the single-wire measurement assembly 5 and the braided layer observation assembly 3, the clamping of the cable 7, the observation and measurement of the braided layer 71 and the data acquisition of the single wire diameter are realized. This avoids the cumulative error of traditional step-by-step measurement, reduces manual operation links, and improves measurement efficiency and accuracy.

[0041] The controller controls the rotation of the clamping assembly by controlling the gear 241 and gear ring 221 driven by the motor 24. This can precisely drive the braided layer 71 of the cable 7 to rotate slowly and uniformly. Combined with laser marking and scale reading, it is convenient to observe the braided layer 71 and realizes high-precision measurement of pitch L. Compared with manual rotation, this measuring device has stronger stability.

[0042] Illumination by supplementary light 35 and observation aided by magnifying glass 32 improved the clarity of identification of the structure of braided layer 71 (such as the number of spindles and threads); laser emitter 34 and scale 31 worked together to achieve precise positioning of circumferential and longitudinal marks, further ensuring the accuracy of parameter reading.

[0043] The front and rear clamping components 4 are symmetrically designed and have clearance grooves 25, which facilitates the quick clamping of cables 7; the photoelectric sensor automatically triggers the clamping action, and the single wire measuring component 5 automatically clamps and measures the diameter of the single wire 72, which simplifies the operation process, improves the operation efficiency, and reduces human intervention error.

[0044] Technical features not described in detail in this solution are based on conventional operations and general understanding of those skilled in the art, and are therefore not elaborated upon here. Technical features not described in this utility model can be implemented using existing technology, and will not be repeated here. Of course, the above description is not intended to limit this utility model, nor is it limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. A device for measuring the braid density of a cable shield, comprising a base (1), characterized in that, It also includes a front clamping assembly (2), a braided layer observation assembly (3), a rear clamping assembly (4), and a single-wire measurement assembly (5) sequentially arranged on the base (1). The single-wire measurement assembly (5) is used to measure the single-wire diameter d of the monofilament (72) in the braided layer (71). A gap is provided between the braided layer observation assembly (3) and the rear clamping assembly (4) to allow a vernier caliper (6) to pass through. The vernier caliper (6) is used to measure the outer diameter D of the braided layer (71). The braided layer observation assembly (3) is used to observe the unidirectional spindle number m of the braided layer (71). i The number of strands per spindle n and the pitch L; a controller is provided on the pedestal (1), and the front clamping assembly (2), the braided layer observation assembly (3), the rear clamping assembly (4) and the single-wire measurement assembly (5) are all electrically connected to the controller.

2. The cable shield layer weave density measurement apparatus of claim 1, wherein, The front clamping assembly (2) includes a support ring (21) disposed on the base (1), a rotating ring (22) rotatably disposed on the side of the support ring (21), and an electric gripper (23) disposed on the rotating ring (22). A motor (24) is disposed on the base (1), and a gear (241) is disposed at the output end of the motor (24). A gear ring (221) is disposed on the outer side of the rotating ring (22), and the gear (241) meshes with the gear ring (221). Both the support ring (21) and the rotating ring (22) are provided with clearance grooves (25) that allow the cable (7) to pass through. The cable (7) passes through the clearance grooves (25) and is detachably connected to the electric gripper (23).

3. The cable shield layer weave density measurement apparatus of claim 2, wherein, The rear clamping assembly (4) is the same as the front clamping assembly (2). The electric gripper (23) and motor (24) of the front clamping assembly (2) and the rear clamping assembly (4) are all electrically connected to the controller.

4. The cable shield layer weave density measurement apparatus of claim 3, wherein, A photoelectric sensor 1 (26) for detecting the passage of cable (7) is provided on the platform (1) near the front clamping assembly (2), and a photoelectric sensor 2 (41) for detecting the passage of cable (7) is provided on the platform (1) near the rear clamping assembly (4). Both the photoelectric sensor 1 (26) and the photoelectric sensor 2 (41) are electrically connected to the controller.

5. The cable shield layer weave density measurement apparatus of claim 3, wherein, The braided layer observation assembly (3) includes a scale (31) and a magnifying glass (32) respectively set on both sides of the braided layer (71). A pole (33) is set on the pedestal (1) near the scale (31). A support block (331) is swayably set on the pole (33). A laser emitter (34) is set on the support block (331) facing the side of the braided layer (71). The laser emitter (34) is electrically connected to the controller.

6. The cable shield layer weave density measurement apparatus of claim 5, wherein, The pole (33) is equipped with a supplementary light (35) for illuminating the braided layer (71), and the supplementary light (35) is electrically connected to the controller.

7. The cable shield layer weave density measurement apparatus of claim 1, wherein, The single-wire measuring component (5) includes a laser diameter gauge (51) for measuring the diameter d of a single wire, and electric grippers two (52) and three (53) respectively disposed on both sides of the laser diameter gauge (51). The electric grippers two (52) and three (53) are detachably clamped at both ends of the braided layer (71). The electric grippers two (52), the laser diameter gauge (51) and the electric grippers three (53) are electrically connected to the controller.

Images