Device for detecting resistance of electric wire

Abstract

The utility model discloses a wire resistance detection device, which comprises a bottom plate, the bottom plate is installed on external equipment, a tensioning mechanism is arranged on the bottom plate, and the tensioning mechanism comprises a moving mechanism, a pulling plate, a fixing sleeve, a limiting block, a fitting disc, a contraction mechanism, a clamping block, an elastic strip, a clamping sleeve, a rubber strip and a wire. The moving mechanism is connected to the pulling plate and the bottom plate in a matched mode, a limiting block is installed at the lower end of the fixing sleeve, a limiting groove is formed in the pulling plate, the limiting block is clamped in the limiting groove, the attaching disc is coaxially installed on the fixing sleeve, and the tensioning mechanism can effectively straighten and fix an electric wire. The mechanism allows an operator to apply proper tension to the wire by adjusting the position of the pulling plate, and ensures the straight state of the wire in the test process, so that the resistance measurement error caused by bending of the wire is reduced, and the repeatability and the accuracy of the test process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire resistance detection, and more specifically, to a device for wire resistance detection. Background Art

[0002] In the existing technology, the device used for wire resistance detection usually needs to accurately measure the resistance of the wire to ensure that the quality of the wire meets the electrical standards and safety requirements. Resistance measurement is an important means to evaluate the conductive performance of wires. Any measurement error may lead to performance deviations of the wires in actual use and increase the risk of failure. Wires often bend during manufacturing and transportation. If this bending state is not corrected during the measurement process, it will cause inaccurate resistance measurement due to changes in the physical structure inside the wire. For example, bending of the wire may cause some conductors to be in close contact, or cause tiny fractures inside the conductor, thereby affecting the flow of current and thus affecting the measurement results.

[0003] Existing resistance testing equipment is usually not equipped with an effective mechanism to straighten bent wires, which is a major technical flaw. The absence of a straightening mechanism means that the wires remain in their bent state when entering the testing device, and the measured data may therefore not reflect the true resistance value of the wires under normal use. This not only affects the accuracy of the test results, but may also cause unqualified wires to be misjudged as qualified, or conversely, qualified wires to be misjudged as unqualified, resulting in a waste of resources or potential safety risks.

[0004] In addition, this limitation of the current device also reduces the efficiency of the inspection process. Operators may need to manually intervene to try to straighten the wire, which not only increases labor intensity, but also consumes more time and affects production efficiency. This low efficiency is particularly prominent on high-speed, large-scale wire production lines. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the problems existing in the prior art, the utility model provides a device for detecting the resistance of an electric wire to solve the technical problems mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting the resistance of electric wires, comprising a base plate, which is mounted on external equipment, and a tensioning mechanism is arranged on the base plate, and the tensioning mechanism comprises a moving mechanism, a pulling plate, a fixing sleeve, a limiting block, a fitting disk, a shrinking mechanism, a clamping block, an elastic strip, a clamping sleeve, a rubber strip and a conducting wire, and the moving mechanism is cooperatively connected to the pulling plate and the base plate, a limiting block is installed at the lower end of the fixing sleeve, a limiting groove is provided on the pulling plate, the limiting block is clamped on the limiting groove, the fitting disk is coaxially installed on the fixing sleeve, the fitting disk abuts on the pulling plate, and the shrinking mechanism is cooperatively connected to the fixing sleeve and the clamping block, a plurality of elastic strips are arranged, and each of the elastic strips is respectively provided with a friction groove, the clamping sleeve is installed on the clamping block, the rubber strip is installed on the clamping sleeve, and the rubber strip and the friction groove are respectively clamped on the conducting wire.

[0009] The utility model is further configured such that the contraction mechanism includes a contraction bar and a push spring, a plurality of contraction bars are provided, and the plurality of contraction bars are equidistantly installed on the inner wall of the fixed sleeve, a contraction groove is provided on each of the contraction bars, a clamping block is slidably connected to the contraction groove, and the push spring is connected to the contraction bar, and the design of the contraction mechanism ensures the continuity of the clamping.

[0010] The utility model is further configured that an intermediate sleeve is slidably provided in the fixed sleeve, a plurality of push springs are provided, and the plurality of push springs respectively abut against the intermediate sleeve, and the design of the intermediate sleeve ensures the transmission of power.

[0011] The utility model is further configured that a hexagonal sleeve is threadedly provided on the fixing sleeve, a thrust bearing is provided on the intermediate sleeve, the hexagonal sleeve abuts against the thrust bearing, and the design of the thrust bearing ensures the vertical transmission of thrust.

[0012] The utility model is further configured that two pulling plates are provided, and each pulling plate is symmetrically provided with a plurality of the tensioning mechanisms, and the design of the two pulling plates ensures the continuity of pulling.

[0013] The utility model is further configured that the moving mechanism includes a slide rail, a slider and a follower plate, the slide rail is installed on the bottom plate, and a pull plate and a slider are respectively installed at both ends of the follower plate. The slider is slidably connected to the slide rail, and the design of the moving mechanism ensures the continuity of tension.

[0014] The utility model is further configured as follows: a motor is provided on the bottom plate, a lead screw is provided on the protruding end of the motor, a receiving seat is provided on the bottom plate, the lead screw is rotatably connected to the receiving seat, and the design of the motor ensures the supply of power.

[0015] The utility model is further configured that the lower ends of the two follower plates are respectively provided with threaded sleeves, and the two lead screws are respectively threadedly connected to the threaded sleeves, and the design of the threaded sleeves ensures the power transmission of the lead screws.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a device for detecting wire resistance, which has the following beneficial effects:

[0018] 1. The tensioning mechanism can effectively straighten and fix the wire. By combining the moving mechanism, the pulling plate, the fixing sleeve, the limit block and the fitting plate, this mechanism allows the operator to adjust the position of the pulling plate to apply appropriate tension to the wire to ensure that the wire is straight during the test. This not only reduces the resistance measurement error caused by the bending of the wire, but also increases the repeatability and accuracy of the test process.

[0019] 2. The retraction mechanism provides precise gripping and fixing capabilities. Through the clamping block, elastic strip, friction groove, clamping sleeve and rubber strip in the retraction mechanism, this mechanism can tightly fix the wire without damaging the wire. In particular, the design of the elastic strip and friction groove can effectively adapt to wires of different thicknesses and materials, ensuring the stability of the wire during detection.

[0020] 3. The moving mechanism provides a high degree of flexibility and adjustment capabilities. Combined with the slide rail, slider and follower plate, the moving mechanism enables the pull plate to move smoothly along the set track. This design allows the position of the pull plate to be quickly adjusted to accommodate wires of different lengths and positions, further enhancing the applicability and ease of operation of the device. The existence of this mechanism significantly improves the functionality and efficiency of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a device for detecting wire resistance in the utility model;

[0022] Figure 2 It is a structural schematic diagram of the fixing sleeve in the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the fixing sleeve in the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the card block in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the limit block in the utility model.

[0026] In the figure: 1. bottom plate; 2. pull plate; 3. fixed sleeve; 4. limit block; 5. fitting disk; 6. clamping block; 7. elastic strip; 8. clamping sleeve; 9. rubber strip; 10. wire; 11. limit groove; 12. friction groove; 13. contraction strip; 14. push spring; 15. contraction groove; 16. intermediate sleeve; 17. hexagonal sleeve; 18. thrust bearing; 19. slide rail; 20. slider; 21. follower plate; 22. motor; 23. lead screw; 24. receiving seat; 25. threaded sleeve. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5A device for detecting the resistance of a wire comprises a bottom plate 1, which is mounted on an external device. A tensioning mechanism is arranged on the bottom plate 1, and the tensioning mechanism comprises a moving mechanism, a pulling plate 2, a fixing sleeve 3, a limiting block 4, a fitting disk 5, a contraction mechanism, a clamping block 6, an elastic strip 7, a clamping sleeve 8, a rubber strip 9 and a conductor 10. The moving mechanism is cooperatively connected to the pulling plate 2 and the bottom plate 1, a limiting block 4 is installed at the lower end of the fixing sleeve 3, a limiting groove 11 is provided on the pulling plate 2, the limiting block 4 is clamped on the limiting groove 11, the fitting disk 5 is coaxially mounted on the fixing sleeve 3, the fitting disk 5 abuts on the pulling plate 2, the contraction mechanism is cooperatively connected to the fixing sleeve 3 and the clamping block 6, a plurality of elastic strips 7 are provided, each of which is respectively provided with a friction groove 12, and the clamping sleeve 8 is mounted on the clamping block 6 The rubber strip 9 is installed on the clamping sleeve 8, and the rubber strip 9 and the friction groove 12 are respectively clamped on the wire 10. The contraction mechanism includes a contraction strip 13 and a push spring 14. There are multiple contraction strips 13, and multiple contraction strips 13 are equidistantly installed on the inner wall of the fixed sleeve 3. Each contraction strip 13 is provided with a contraction groove 15. The clamping block 6 is slidably connected to the contraction groove 15. The push spring 14 is connected to the contraction strip 13. An intermediate sleeve 16 is slidably provided in the fixed sleeve 3. There are multiple push springs 14, and multiple push springs 14 respectively abut against the intermediate sleeve 16. A hexagonal sleeve 17 is threaded on the fixed sleeve 3, and a thrust bearing 18 is provided on the intermediate sleeve 16. The hexagonal sleeve 17 abuts against the thrust bearing 18. Two pull plates 2 are provided, and each pull plate 2 is symmetrically provided with multiple tensioning mechanisms.

[0031] In this embodiment, when it is necessary to fix and tighten the wire 10, first install the limit block 4 in the limit groove 11, and then make the fitting disk 5 abut against the pull plate 2, and by rotating the hexagonal sleeve 17, the thrust bearing 18 can be driven to press on the middle sleeve 16, and then the push spring 14 drives the clamping block 6 to slide along the shrinkage groove 15, so that the friction grooves 12 on the multiple elastic strips 7 abut against the wire 10. At this time, the rubber strip 9 on the clamping sleeve 8 has not yet contacted the wire 10. At this time, the pull plate 2 moves the wire 10 and the rubber strip 9 to slide relative to each other. When it needs to be fixed, continue to rotate the hexagonal sleeve 17, and then make the rubber strip 9 abut against the side wall of the wire 10. At this time, when the pull plate 2 is pulled again, it will drive the clamping block 6 to shrink along the shrinkage strip 13, so the wire 10 will be pulled tighter and tighter, thereby tightening and fixing the wire 10 to avoid bending.

[0032] See also Figure 1As an implementation of the moving mechanism: the moving mechanism includes a slide rail 19, a slider 20 and a follower plate 21, the slide rail 19 is installed on the base plate 1, and the pull plate 2 and the slider 20 are respectively installed at both ends of the follower plate 21. The slider 20 is slidably connected to the slide rail 19, a motor 22 is provided on the base plate 1, a lead screw 23 is provided on the protruding end of the motor 22, a receiving seat 24 is provided on the base plate 1, and the lead screw 23 is rotatably connected to the receiving seat 24, and threaded sleeves 25 are respectively provided at the lower ends of the two follower plates 21, and the two lead screws 23 are respectively threadedly connected to the threaded sleeves 25.

[0033] More specifically, when the two pull plates 2 need to be pulled, the two motors 22 can reversely rotate to drive the two lead screws 23 to respectively drive the two threaded sleeves 25 to move in the opposite direction, and then drive the two pull plates 2 to move in the opposite direction, and then the bends on the wire 10 can be pulled into a straight line, and then resistance detection is performed at both ends of the wire 10, thereby completing the use process.

[0034] In summary, when the overall equipment is in use or running: when the wire 10 needs to be fixed and tightened, first install the limit block 4 in the limit groove 11, and then make the fitting disk 5 contact the pull plate 2, and by rotating the hexagonal sleeve 17, the thrust bearing 18 can be driven to press on the intermediate sleeve 16, and then the push spring 14 drives the clamping block 6 to slide along the shrinkage groove 15, so that the friction grooves 12 on the multiple elastic strips 7 contact the wire 10, at this time, the rubber strip 9 on the clamping sleeve 8 has not yet contacted the wire 10, at this time, the pull plate 2 moves the wire 10 and the rubber strip 9 can still slide relative to each other, when it needs to be fixed, continue to rotate the hexagonal sleeve 17, and then make the rubber strip 9 contact the side wall of the wire 10, when the pull plate 2 is pulled again at this time, it will drive the clamping block 6 to shrink along the shrinkage strip 13, so the pull will become tighter and tighter, thereby tightening and fixing the wire 10 to avoid bending.

[0035] When the two pull plates 2 need to be pulled, the reverse rotation of the two motors 22 can drive the two lead screws 23 to respectively drive the two threaded sleeves 25 to move in the opposite direction, and then drive the two pull plates 2 to move in the opposite direction, and then the bends on the wire 10 can be pulled into a straight line, and then resistance detection is performed at both ends of the wire 10, thereby completing the use process.

[0036] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for detecting resistance of an electric wire, comprising a base plate (1), the base plate (1) being mounted on an external device, wherein: The bottom plate (1) is provided with a tensioning mechanism, and the tensioning mechanism comprises a moving mechanism, a pulling plate (2), a fixing sleeve (3), a limiting block (4), a fitting disk (5), a contraction mechanism, a clamping block (6), an elastic strip (7), a clamping sleeve (8), a rubber strip (9) and a wire (10). The moving mechanism is connected to the pulling plate (2) and the bottom plate (1), a limiting block (4) is installed at the lower end of the fixing sleeve (3), a limiting groove (11) is provided on the pulling plate (2), and the limiting block (4) is clamped in the limiting groove (11). The fitting disk (5) is coaxially mounted on the fixed sleeve (3), the fitting disk (5) contacts the pull plate (2), the contraction mechanism is cooperatively connected to the fixed sleeve (3) and the clamping block (6), a plurality of elastic strips (7) are provided, each of the elastic strips (7) is provided with a friction groove (12), the clamping sleeve (8) is mounted on the clamping block (6), the rubber strip (9) is mounted on the clamping sleeve (8), and the rubber strip (9) and the friction groove (12) are respectively clamped on the wire (10).

2. The device for detecting electric wire resistance according to claim 1, characterized in that: The retracting mechanism comprises a retracting bar (13) and a push spring (14). A plurality of retracting bars (13) are provided, and the plurality of retracting bars (13) are respectively and equidistantly installed on the inner wall of the fixed sleeve (3). A retracting groove (15) is provided on each retracting bar (13). The clamping block (6) is slidably connected to the retracting groove (15), and the push spring (14) is connected to the retracting bar (13).

3. The device for detecting electric wire resistance according to claim 2, characterized in that: An intermediate sleeve (16) is slidably disposed inside the fixed sleeve (3), a plurality of push springs (14) are disposed, and the plurality of push springs (14) respectively abut against the intermediate sleeve (16).

4. The device for detecting electric wire resistance according to claim 3, characterized in that: A hexagonal sleeve (17) is threadedly provided on the fixed sleeve (3), a thrust bearing (18) is provided on the intermediate sleeve (16), and the hexagonal sleeve (17) abuts against the thrust bearing (18).

5. The device for detecting electric wire resistance according to claim 4, characterized in that: Two pulling plates (2) are provided, and a plurality of the tensioning mechanisms are symmetrically arranged on each pulling plate (2).

6. The device for detecting electric wire resistance according to claim 1, characterized in that: The moving mechanism comprises a slide rail (19), a slider (20) and a follower plate (21); the slide rail (19) is mounted on a base plate (1); a pull plate (2) and a slider (20) are respectively mounted on both ends of the follower plate (21); and the slider (20) is slidably connected to the slide rail (19).

7. The device for detecting electric wire resistance according to claim 6, characterized in that: The bottom plate (1) is provided with a motor (22), the extended end of the motor (22) is provided with a lead screw (23), the bottom plate (1) is provided with a receiving seat (24), and the lead screw (23) is rotatably connected to the receiving seat (24).

8. The device for detecting electric wire resistance according to claim 7, characterized in that: The lower ends of the two follower plates (21) are respectively provided with threaded sleeves (25), and the two lead screws (23) are respectively threadedly connected to the threaded sleeves (25).

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