Strength detection device for copper-clad steel wire

Abstract

The application relates to the technical field of metal wire mechanical property detection, and discloses a strength detection device for copper-coated steel wire, which comprises a detection box with two open sides, sealing covers are connected to the two open sides of the detection box, one side of the sealing cover is connected with a gas guide box, a plurality of single-head electric sliding rails and bidirectional electric sliding rails are fixedly connected in the detection box, a quantitative mechanism is fixedly connected to the moving end of the single-head electric sliding rail, clamping mechanisms are fixedly connected to the two moving ends of the bidirectional electric sliding rail, a to-be-detected wire is clamped in the clamping mechanism, and the to-be-detected wire penetrates through the quantitative mechanism. The clamping mechanism, the quantitative mechanism and a measuring mechanism are integrated in the same detection box, one-time clamping is realized, multiple performance tests are completed, the operation process is simplified, the detection efficiency is remarkably improved, positioning errors and system errors caused by sample transfer between different devices are avoided, all test data are ensured to be based on the same reference, and the accuracy and comparability of test results are improved.

Description

Technical Field

[0001] This application relates to the field of mechanical property testing technology for metal wires, specifically to a strength testing device for copper-clad steel wire. Background Technology

[0002] Currently, copper-clad steel wire, as an important bimetallic composite conductor, is widely used in communications, power, and grounding systems. Its tensile strength, torsional properties, and stress stability under different environmental conditions are crucial indicators for ensuring its safe and reliable operation. Existing technologies generally employ a separate equipment and step-by-step testing approach for these indicators. For example, the tensile strength of the steel core is tested on a dedicated tensile testing machine, the copper layer bonding strength is tested separately on a peel testing machine, and the torsional fatigue performance is tested on a torsion testing machine. However, this approach has significant drawbacks: firstly, multiple clamping and transfer between multiple devices lead to long testing cycles and low efficiency, failing to meet the high-efficiency testing requirements of modern manufacturing; secondly, repeated clamping and positioning of samples between different devices introduces additional systematic errors, severely affecting the accuracy and consistency of test results. Therefore, there is an urgent need for a device capable of integrated testing of multiple properties to improve the quality control level of copper-clad steel wire. Summary of the Invention

[0003] To address the problems of low detection efficiency, large errors, and isolated data in existing technologies, this application proposes a strength testing device for copper-clad steel wire that enables simultaneous testing of multiple properties in a single clamping operation, thereby improving detection efficiency, reducing sample transfer errors, and obtaining more reliable mechanical property data.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A strength testing device for copper-clad steel wire includes a testing box with openings on both sides. A sealing cover is sealed to both sides of the testing box, and an air guide box is connected to one side of each sealing cover. Multiple single-head and bidirectional electric slide rails are fixedly connected inside the testing box. A quantitative mechanism is fixedly connected to the moving end of each single-head electric slide rail, and a clamping mechanism is fixedly connected to both moving ends of each bidirectional electric slide rail. The clamping mechanism holds the wire to be tested, which passes through the quantitative mechanism. The clamping mechanism causes the wire to be tested to be stretched and twisted, while the quantitative mechanism assists in changing the stress point of the wire, increasing the diversity of quantitative measurement data. A measuring mechanism is also provided inside the testing box. By integrating multiple testing functions such as tensile and torsion tests into the same testing box, and coordinating the quantitative and clamping mechanisms, multiple performance tests on the wire to be tested can be achieved with a single clamping, solving the problems of low efficiency and error accumulation caused by step-by-step testing in existing technologies.

[0006] Furthermore, the quantitative mechanism includes an installation tube fixedly connected to the moving end of a single-head electric slide rail, a connecting column fixedly connected to one side of the installation tube, and an installation sleeve fixedly connected to the end of the connecting column away from the installation tube. A contact box that contacts the inner wall of the test box is fixedly connected to one side of the installation sleeve. Multiple protective sleeves are provided on the connecting column, and symmetrically arranged telescopic rods are fixedly connected inside the protective sleeves. A limiting ball located inside the protective sleeve is fixedly connected to the fixed end of the telescopic rods. A clamping strip located at the center of the limiting ball is fixedly connected to the moving end of the telescopic rods. Atomizing tubes are also connected to the limiting ball, with one end of the atomizing tube located on one side of the test line and one end of the flow control tube located inside the protective sleeve. Through the quantitative mechanism, the stress point position of the test line can be adjusted, and the test environment can be controlled through the flow control tube, thereby improving the diversity and accuracy of the test data.

[0007] Furthermore, a through-tube is connected to the end of the mounting tube away from the connecting post, and a functional strip located on the detection box is connected to one side of the through-tube. A one-way valve is installed on the flow control tube, and a replenishment hole connected to the outside is provided on one side of the functional strip. The cooperation between the air guide box and the flow control tube realizes the regulation of airflow and environment in the test chamber, further ensuring the stability of test conditions.

[0008] Furthermore, the clamping mechanism includes a fixed ring fixedly connected to the moving end of the bidirectional electric slide rail. A rotating ring is rotatably connected inside the fixed ring, and a rotating box is fixedly connected to the middle of the rotating ring. A guide ring is connected to one side of the rotating box, and a clamping component for clamping the wire to be inspected is provided inside the rotating box. A transmission component connected to the rotating box is connected to one side of the clamping component. The transmission component is located outside the fixed ring, and multiple mounting brackets are fixedly connected to the outer periphery of the fixed ring. A drive component that cooperates with the transmission component is connected to one side of the mounting bracket. The clamping mechanism realizes the clamping of the wire to be inspected and provides a structural basis for subsequent stretching and torsion actions.

[0009] Furthermore, the transmission assembly includes an outer drive tube fixedly connected to the rotating box, a gear three fixedly sleeved on the outer side of the outer drive tube, an inner drive tube rotatably connected to the middle of the outer drive tube, a gear one fixedly sleeved on the outer side of the inner drive tube, an inner ring rotatably connected to one end of the inner drive tube, an outer sleeve rotatably sleeved on the outer side of the inner ring, a telescopic tube connected to the sealing cover at the end of the outer sleeve away from the inner drive tube, a rotating cone located inside the rotating box fixedly sleeved at one end of the inner drive tube, multiple bevel teeth one meshing on one side of the rotating cone, a threaded rod threaded on the middle of the bevel teeth one, a limiting block connected to each other snapped on one side of the guide ring, and a support tube for supporting the bevel teeth one provided between the limiting block and the bevel teeth one, a clamping block located inside the limiting block sleeved at one end of the threaded rod. Through the cooperation of the transmission assembly, the clamping assembly is driven, improving the accuracy of tensile and torsion tests.

[0010] Furthermore, the drive assembly includes a telescopic rod 1 fixedly connected to the mounting bracket. A motor is fixedly connected to the moving end of the telescopic rod 1, and a gear 2 is driven to the output end of the motor. Gear 2 meshes with gear 3 or gear 1. A limiting frame 1 that cooperates with gear 1 is fixedly connected to the fixed end of the motor. An elastic element is fixedly connected to one side of the rotating box. A limiting frame 2 that contacts gear 2 is fixedly connected to the moving end of the elastic element. The top end of the limiting frame 2 cooperates with gear 3, and the bottom end of the limiting frame 2 cooperates with a fixing ring. Through the cooperation of the drive assembly and the transmission assembly, the switching between stretching and torsional actions is realized, improving the automation level of the device.

[0011] Furthermore, gear one is provided with multiple receiving holes one for accommodating the limiting frame one, gear three is provided with multiple receiving holes two for accommodating the limiting frame two, and the fixing ring is also provided with multiple receiving holes three for accommodating the other end of the limiting frame two. By setting the receiving holes, the stability and positioning accuracy of each component during the movement process are improved.

[0012] Furthermore, the testing box is equipped with multiple partitions, each with a passageway for connecting columns. The partitions optimize the internal spatial layout of the testing box and improve structural stability.

[0013] Furthermore, a filter chamber is provided inside the air guide box, and an air pump is fixedly connected inside the filter chamber. The output end of the air pump is fixedly connected to a guide pipe, which extends to the top of the air guide box. Multiple guide plates are provided inside the air guide box, and a heating coil is placed between two guide plates. The top of the air guide box is connected to the sealing cover. Multiple connecting sleeves are fixedly connected to one side of the sealing cover, and the connecting sleeves are connected to the telescopic tube. The cooperation of the air guide box, air pump and heating coil realizes constant temperature and humidity control of the test environment, eliminating the interference of external environmental factors on the test results.

[0014] Furthermore, the filter chamber is filled with filter cotton, the top of the air guide box is equipped with a water filling hole, and multiple air guide pipes are installed between the two guide plates.

[0015] Beneficial effects:

[0016] 1. By integrating the clamping mechanism, quantitative mechanism and measuring mechanism in the same test box, multiple performance tests can be completed in one clamping, simplifying the operation process and significantly improving the testing efficiency.

[0017] 2. It avoids positioning and systematic errors caused by transferring samples between different devices, ensuring that all test data are based on the same benchmark, thereby improving the accuracy and comparability of test results.

[0018] 3. It can acquire axial tensile data, torsion angle data, and stress and deformation data of copper-clad steel wire under different local limiting positions under the same clamping reference, providing continuous data support for wire strength evaluation. Attached Figure Description

[0019] Figure 1 This is a rear view structural diagram of this application;

[0020] Figure 2 This is a partial front view structural diagram of this application;

[0021] Figure 3 This is a rear view diagram of the internal structure of this application;

[0022] Figure 4 This is a partial front view of the transmission assembly.

[0023] Figure 5 This is a partial front view schematic diagram of the clamping mechanism;

[0024] Figure 6 This is a schematic diagram of the front sectional view of the clamping mechanism;

[0025] Figure 7 This is a partial front view of the clamping mechanism.

[0026] Figure 8 This is a partial front view diagram of the quantitative mechanism;

[0027] Figure 9 This is a schematic diagram of the main sectional view of the quantitative mechanism;

[0028] Figure 10 This is a schematic diagram of the front sectional view of the air guide box.

[0029] Explanation of reference numerals in the attached figures:

[0030] 01. Detection box; 02. Sealing cover; 03. Air guide box; 04. Functional bar; 05. Single-head electric slide rail; 06. Fixing ring; 07. Telescopic tube; 08. Contact box; 09. Bidirectional electric slide rail; 10. Rotating ring; 11. Outer tube; 12. Mounting tube; 13. Mounting bracket; 14. Gear 1; 15. Gear 2; 16. Telescopic rod 1; 17. Test line; 18. Mounting sleeve; 19. Guide ring; 20. Rotating box; 21. Rotating cone; 22. Clamping block; 23. Gear 3; 2 4. Limiting block; 25. Bevel tooth one; 26. Threaded rod; 27. Limiting frame one; 28. Elastic element; 29. ​​Limiting frame two; 30. Inner ring; 31. Inner drive tube; 32. Outer drive tube; 33. Motor; 34. Divider plate; 40. Limiting ball; 41. Atomizing tube; 42. Telescopic rod two; 43. Protective sleeve; 44. Connecting column; 45. Through tube; 46. Clamping strip; 50. Connecting sleeve; 51. Filter chamber; 52. Air pump; 53. Guide tube; 54. Heating coil; 55. Guide plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0033] Example 1: As Figure 1 - Figure 3 As shown;

[0034] This embodiment provides a strength testing device for copper-clad steel wire. The device mainly includes a testing box 01 with openings on both sides. A sealing cover 02 is sealed to both sides of the testing box 01, and an air guide box 03 is connected to one side of the sealing cover 02. Multiple single-head electric slide rails 05 and bidirectional electric slide rails 09 are fixedly connected inside the testing box 01. A quantitative mechanism is fixedly connected to the moving end of each single-head electric slide rail 05. A clamping mechanism is fixedly connected to both moving ends of each bidirectional electric slide rail 09, and the clamping mechanism holds the wire to be tested 17, which passes through the quantitative mechanism. The clamping mechanism causes the wire to be tested 17 to stretch and twist, while the quantitative mechanism assists in changing the stress point of the wire to be tested 17, increasing the diversity of quantitative measurement data. A measuring mechanism is also provided inside the testing box 01.

[0035] Specifically, the test box 01, as a closed or semi-closed support base, has openings on both sides to facilitate the threading and installation of the test line 17. The encapsulation cover 02 not only seals the openings to form a relatively independent test chamber but also provides mounting points for external components such as the air guide box 03. This encapsulation structure effectively blocks interference from external airflow, dust, and other environmental factors. It should be understood that although the test box 01 is shown as a rectangular box structure in this embodiment, in other embodiments, it can also be designed as a cylindrical or other irregular shape according to actual installation space requirements, as long as it meets the installation and protection requirements of the internal mechanism.

[0036] The single-head electric slide rail 05 has only one independently movable slider end, which is mainly used to drive the quantitative mechanism for unidirectional displacement adjustment. During the testing process, the single-head electric slide rail 05 drives the quantitative mechanism to move, thereby changing the relative position between the quantitative mechanism and the clamping mechanism, and thus realizing the dynamic adjustment of the stress point of the line under test 17. This allows the device to perform fixed-point measurements on different sections of the line under test 17, significantly increasing the diversity and comprehensiveness of the measurement data. The bidirectional electric slide rail 09 has two slider ends that can move in opposite directions or in opposite directions. These two movable ends are each connected to a clamping mechanism. During tensile performance testing, the two movable ends of the bidirectional electric slide rail 09 move in opposite directions, causing the clamping mechanisms on both sides to move away from each other, thereby applying axial tension to the line under test 17; while during pre-tightening or position adjustment before torsion testing, the two movable ends can also work together. This division of labor and cooperation mechanism is the key structural basis for realizing multiple performance tests in one clamping.

[0037] In terms of connection, one end of the test line 17 is clamped by a clamping mechanism on one side, and the other end passes through a quantitative mechanism and is clamped by a clamping mechanism on the other side. The quantitative mechanism does not directly participate in the tension or torsion drive of the test line 17, but acts as an intermediate adjustment point, using its internal structure to locally limit or switch stress points on the test line 17. The measuring mechanism is set at an appropriate position within the detection box 01 to monitor the stress deformation of the test line 17 in real time. It can be any combination of a tension sensor, a displacement sensor, or an image acquisition device. When it is a tension sensor, it is installed on the clamping mechanism; when it is a displacement sensor or an image acquisition device, it is installed at a designated observable position. The image acquisition device takes pictures of the surface of the test line 17 and processes the data to obtain the degree of damage. Its signal output is via its own Bluetooth or wired connection, as long as signal transmission is achieved. At the same time, during torsion, the torsion angle acquisition is set corresponding to the rotating box 20, acquiring the rotation angle of the rotating box 20 relative to the fixed ring. This embodiment integrates the tensile, torsion, and stress point adjustment functions, which originally needed to be completed on different devices, into the same test box 01 through the above-mentioned integrated design. The test line 17 only needs to be clamped once to complete the entire test process, which greatly eliminates the positioning error caused by repeated clamping in traditional step-by-step testing and significantly improves the testing efficiency and data consistency.

[0038] Example 2: This example is based on Example 1, such as... Figure 1 - Figure 9 As shown,

[0039] The quantitative mechanism includes a mounting tube 12 fixedly connected to the moving end of a single-head electric slide rail 05. The mounting tube 12 serves as the main load-bearing structure of the entire quantitative mechanism. A connecting column 44 is fixedly connected to one side of the mounting tube 12, and a mounting sleeve 18 is fixedly connected to the end of the connecting column 44 furthest from the mounting tube 12. To enhance the stability of the structure during movement, a contact box 08 is fixedly connected to one side of the mounting sleeve 18, contacting the inner wall of the detection box 01. This contact box 08 can slide along the inner wall of the detection box 01, serving as a guide and support. Multiple protective sleeves 43 are provided on the connecting column 44. Symmetrically arranged telescopic rods 42 are fixedly connected within the protective sleeves 43. A limiting ball 40 located within the protective sleeve 43 is fixedly connected to the fixed end of the telescopic rod 42, and a clamping strip 46 located at the center of the limiting ball 40 is fixedly connected to the moving end of the telescopic rod 42. Furthermore, symmetrically arranged atomizing tubes 41 are connected to the limiting ball 40. One end of the atomizing tube 41 is located on one side of the line to be inspected 17, and the other end is located within the protective sleeve 43.

[0040] Specifically, in the non-working state, the clamping bar 46 is in a retracted state, allowing the test line 17 to freely pass through the center of the limiting ball 40. When a fixed-point measurement or a change in stress distribution is required, the telescopic rod 42 is activated and pushes the clamping bar 46 toward the center of the limiting ball 40 until the clamping bar 46 contacts and clamps the test line 17. Since the limiting ball 40 is fixed inside the protective sleeve 43, the clamping action partially locks the test line 17 at the center of the limiting ball 40. At this time, in conjunction with the movement of the single-head electric slide rail 05, the quantitative mechanism as a whole is displaced, thereby changing the relative positional relationship between the test line 17 at this clamping point and the clamping mechanisms at both ends. This change in positional relationship essentially changes the effective test span or local stress state of the test line 17, allowing the same test line 17 to be measured multiple times in different sections or under different stress conditions, thus significantly increasing the diversity and comprehensiveness of the measurement data.

[0041] The end of the mounting tube 12 furthest from the connecting post 44 is connected to a through tube 45, and one side of the through tube 45 is connected to a functional strip 04 located on the detection box 01. A one-way valve is provided on the atomizing tube 41, and a replenishment hole connected to the outside is provided on one side of the functional strip 04. The filling hole is used for detachable connection with an external test medium supply assembly, which includes a gas supply pipeline or a liquid supply pipeline. When a liquid test medium is input, the liquid supply pipeline sends the liquid test medium into the functional strip 04 through a pressure pump, and sprays it onto the copper-clad steel wire 17 to be tested through the through tube 45, the mounting tube 12, and the atomizing tube 41.

[0042] Different gases, such as acidic corrosive gases or alkaline corrosive liquids, can be supplied to the through pipe 45 via the functional strip 04. The fluid then flows through the mounting pipe 12 and is distributed to each protective sleeve 43. The fluid is guided to one side of the test line 17 via the atomizing pipe 41. A one-way valve ensures that the fluid flows in only one direction. A replenishment port connects to external supply devices, supplying the corresponding liquid to the functional strip 04, which is then atomized by the atomizing pipe 41 and sprayed onto the test line 17 for corrosion testing. The mounting pipe 12 has a main flow channel communicating with the through pipe 45, and the connecting column 44 has a distribution channel communicating with the main flow channel. Each protective sleeve 43 is connected to the distribution channel via a corresponding branch channel. The inlet end of the atomizing pipe 41 is connected to the branch channel within the protective sleeve 43, and the outlet end of the atomizing pipe 41 faces the copper-clad steel wire 17 to be tested.

[0043] Example 3: This example is based on the above examples, such as... Figure 1 - Figure 9 As shown,

[0044] The clamping mechanism includes a fixed ring 06 for connection, a rotating ring 10 is rotatably connected inside the fixed ring 06, a rotating box 20 is fixedly connected to the middle of the rotating ring 10, a guide ring 19 is connected to one side of the rotating box 20, and a clamping assembly for clamping the line to be inspected 17 is provided inside the rotating box 20. A transmission assembly connected to the rotating box 20 is connected to one side of the clamping assembly. The transmission assembly is located outside the fixed ring 06. Multiple mounting brackets 13 are fixedly connected to the outer periphery of the fixed ring 06. A drive assembly that cooperates with the transmission assembly is connected to one side of the mounting bracket 13.

[0045] Specifically, the fixed ring 06 serves as the base for connecting the clamping mechanism to the external slide rail, and its position is relatively fixed. The assembly consisting of the rotating ring 10 and the rotating box 20 is rotatably connected within the fixed ring 06 via bearings. The guide ring 19 is located on one side of the rotating box 20, mainly used to guide the wire to be inspected 17 during insertion, preventing the end of the wire to be inspected from scratching internal precision components during high-speed rotation or stretching. The clamping assembly is hidden inside the rotating box 20 and is used to perform the gripping or releasing action of the wire to be inspected 17; the transmission assembly extends to the outside of the rotating box 20 to receive the power from the drive assembly and convert it into radial movement of the clamping assembly. This separate internal and external design effectively utilizes space, making the power transmission path more compact.

[0046] Furthermore, the transmission assembly includes an outer drive tube 32 fixedly connected to the rotating box 20. A gear 23 is fixedly sleeved on the outer side of the outer drive tube 32, and an inner drive tube 31 is rotatably connected to the middle of the outer drive tube 32. A gear 14 is fixedly sleeved on the outer side of the inner drive tube 31, and an inner ring 30 is rotatably connected to one end of the inner drive tube 31. An outer sleeve 11 is rotatably sleeved on the outer side of the inner ring 30. A telescopic tube 07 connected to the encapsulation cover 02 is connected to one end of the outer sleeve 11 away from the inner drive tube 31. A rotating cone 21 located inside the rotating box 20 is fixedly sleeved on one end of the inner drive tube 31. A plurality of bevel teeth 25 are meshed on one side of the rotating cone 21. A threaded rod 26 is threadedly sleeved in the middle of the bevel teeth 25. Two limiting blocks 24 connected to each other are snapped on one side of the guide ring 19. A support tube for supporting the bevel teeth 25 is provided between the limiting block 24 and the bevel teeth 25. A clamping block 22 located inside the limiting block 24 is sleeved on one end of the threaded rod 26.

[0047] The outer drive tube 32 and the inner drive tube 31 are coaxially sleeved. When the wire to be inspected 17 needs to be clamped, power is transmitted through the inner drive tube 31, driving the rotating cone 21 at its end to rotate. The rotation of the rotating cone 21 drives the multiple bevel teeth 25 meshing with it to rotate. Since the center hole of the bevel teeth 25 is a threaded hole, and the threaded rod 26 is restricted by the limiting block 24 and cannot rotate with the bevel teeth 25, the rotation of the bevel teeth 25 is converted into the linear motion of the threaded rod 26 along the axial direction. The threaded rod 26 then pushes the clamping block 22 to slide within the limiting block 24, and the multiple clamping blocks 22 simultaneously retract towards the center, thereby achieving a stable clamping of the wire to be inspected 17. Conversely, the wire can be released by rotating in the opposite direction. This mechanism, which converts rotational motion into radial clamping action through a bevel gear set, has the advantages of good self-locking and uniform clamping force, and is suitable for testing wires such as copper-clad steel wire that have high requirements for surface quality. In addition, the telescopic tube 07 ensures that the air circuit connection is not limited by length when the entire clamping mechanism moves with the bidirectional electric slide rail 09, thus guaranteeing the stability of the system.

[0048] The drive assembly includes a telescopic rod 16 fixedly connected to the mounting bracket 13. A motor 33 is fixedly connected to the moving end of the telescopic rod 16. A gear 15 is driven to the output end of the motor 33. The gear 15 meshes with a gear 23 or a gear 14. A limiting frame 27 that cooperates with the gear 14 is fixedly connected to the fixed end of the motor 33. An elastic element 28 is fixedly connected to one side of the rotating box 20. A limiting frame 29 that contacts the gear 25 is fixedly connected to the moving end of the elastic element 28. The top end of the limiting frame 29 cooperates with the gear 323, and the bottom end of the limiting frame 29 cooperates with the fixing ring 06.

[0049] The telescopic rod 16's extension and retraction directly changes the axial position of the motor 33 and gear 15. When clamping is required, the telescopic rod 16 retracts, causing gear 15 to move to the left and engage with gear 14. At this time, the motor 33 starts, and power is transmitted through gear 15, gear 14, and the inner drive tube 31 to the clamping assembly. Since gear 15 is not in contact with gear 23 at this time, the outer drive tube 32 is in a free state. The limiting frame 29, under the action of the elastic element 28, is embedded in gear 23 to limit its position. The rotating cone 21 drives the clamping assembly to clamp inward. When a torsion test is required, the telescopic rod 16 extends, causing gear 15 to move to the right, disengaging from gear 14 and engaging with gear 23. At this time, the motor 33 starts, and the power transmission path changes to gear 15, gear 23, and the outer drive tube 32. Since the external drive tube 32 is fixedly connected to the rotating box 20, the rotating box 20 rotates to achieve the torque of the line to be inspected 17. This single motor drive dual-mode switching design greatly simplifies the structure and reduces equipment cost and failure rate.

[0050] To ensure accurate positioning and operational stability during gear switching, gear 14 is provided with multiple receiving holes 1 for accommodating limiting frame 27, gear 3 23 is provided with multiple receiving holes 2 for accommodating limiting frame 29, and fixing ring 06 is also provided with multiple receiving holes 3 for accommodating the other end of limiting frame 29.

[0051] The receiving hole serves a positioning function. When gear 2 15 meshes with gear 1 14 to drive the clamping assembly to clamp the copper-clad steel wire 17 to be tested, the limiting frame 29, under the thrust of the elastic member 28, inserts its top end into the receiving hole 2 of gear 3 23 and its bottom end into the receiving hole 3 of the fixing ring 06, so that gear 3 23 and fixing ring 06 remain relatively fixed. When the telescopic rod 1 16 drives the motor 33 to move, causing gear 2 15 to mesh with gear 3 23 to drive the rotating box 20 to rotate, the limiting frame 27 inserts into the receiving hole 1 of gear 1 14 to limit the inner drive tube 31. The limiting frame 29 is squeezed out of the receiving hole 2 by gear 2 15, so that gear 3 23 can drive the outer drive tube 32 and the rotating box 20 to rotate.

[0052] The test box 01 is also equipped with multiple partition plates 34. The partition plates 34 are provided with passage grooves for the connecting column 44 to pass through. The partition plates 04 are vertically fixed to the inner bottom wall of the test box 01, dividing the internal space of the test box 01 into multiple functional areas, reducing the exchange of spatial environment between the two areas, so that individual tests can be carried out in each space. Furthermore, flexible sealing strips are fixedly connected to the upper and lower walls of the passage grooves. The two sealing strips are in contact with each other, thus forming a sealed state in the area except for the area around the connecting column 44, preventing the exchange of substances between the two spaces of the partition plate 04.

[0053] Example 4: This example is based on the above examples, such as... Figure 1 - Figure 10 As shown,

[0054] A filter chamber 51 is provided inside the air guide box 03. An air pump 52 is fixedly connected inside the filter chamber 51. A guide pipe 53 is fixedly connected to the output end of the air pump 52 and extends to the top of the air guide box 03. Multiple guide plates 55 are provided inside the air guide box 03. A heating coil 54 is provided between two guide plates 55. The top of the air guide box 03 is connected to the encapsulation cover 02. Multiple connecting sleeves 50 are fixedly connected to one side of the encapsulation cover 02. The connecting sleeves 50 are connected to the telescopic tube 07. A continuous air passage is formed between the telescopic tube 07, the outer sleeve 11, the inner ring 30, and the inner drive tube 31. An air outlet is provided at the end of the inner drive tube 31 near the rotating box 20. The air outlet is set towards the clamping area of ​​the copper-clad steel wire 17 to be tested, so that the airflow processed by the air guide box 03 can enter the rotating box 20 and act on the copper-clad steel wire 17 to be tested.

[0055] An air pump 52 is placed inside a filter chamber 51. When the air pump 52 is working, it draws in air from the outside. The air first passes through the filter chamber 51 for purification, removing large particulate impurities. The purified air then enters the guide pipe 53 under the action of the air pump 52 and is delivered to the heating area of ​​the air guide box 03. In this area, staggered guide plates 55 form a meandering airflow channel, and heating coils 54 are placed horizontally between adjacent guide plates 55. As the airflow flows through the meandering channel, it is forced to skim the surface of the heating coils 54 multiple times. This design greatly increases the contact time and heat exchange area between the airflow and the heat source, ensuring the temperature uniformity of the output airflow. It should be understood that the heating coil 54 is only a preferred heating implementation. In other embodiments, PTC ceramic heating elements or quartz heating tubes can be used instead, as long as they can meet the requirements of rapid and uniform heating of the airflow.

[0056] The heated clean airflow exits from the top of the air guide box 03, enters the encapsulation cover 02, and is split into various telescopic tubes 07 through the connecting sleeve 50. The telescopic tubes 07 are connected to the inner drive tube 31 of the clamping mechanism. The airflow is finally delivered to the inside of the clamping mechanism and acts on the surface of the clamped test wire 17 and is distributed within the interval separated by the partition plate 04. The constant temperature airflow can eliminate the influence of ambient temperature fluctuations on the mechanical property testing of copper-clad steel wire. Especially for copper-clad steel, a bimetallic composite material, temperature changes will cause the thermal expansion difference between the copper layer and the steel core, resulting in changes in internal stress, which will interfere with the accuracy of tensile and torsion test data. By controlling variables, the working condition of the test wire 17 under different environments can be controlled, making it easier to obtain more measurement data.

[0057] The filter chamber 51 is filled with filter cotton, and the top of the air guide box 03 is also provided with a water filling hole. Multiple air guide pipes are also provided between the two guide plates 55.

[0058] As a primary filtration medium, the filter cotton's fluffy, porous structure effectively intercepts suspended particulate matter in the air. The water filling hole provides an interface for controlling ambient humidity. Operators can inject an appropriate amount of pure water into the air chamber 03 through the water filling hole, allowing the airflow to carry trace amounts of water vapor, thereby providing necessary humidity replenishment and controlling the test results of the test line 17 under different humidity environments.

[0059] The above are merely preferred embodiments of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within the scope of this application's concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A strength testing device for copper-clad steel wire, characterized in that, The test box (01) includes openings on both sides. The test box (01) is sealed with a sealing cover (02) on both sides of the opening. A gas guide box (03) is connected to one side of the sealing cover (02). Multiple single-head electric slide rails (05) and bidirectional electric slide rails (09) are fixedly connected inside the test box (01). A quantitative mechanism is fixedly connected to the moving end of the single-head electric slide rail (05). A clamping mechanism is fixedly connected to both moving ends of the bidirectional electric slide rail (09). The clamping mechanism holds the test line (17), which passes through the quantitative mechanism. The clamping mechanism drives the test line (17) to stretch and twist, and the quantitative mechanism is used to form a movable local limit in the length direction of the test line (17), and drives the local limit position to move relative to the clamping mechanisms on both sides through the single-head electric slide rail (05), thereby increasing the diversity of quantitative measurement data. The detection box (01) is also equipped with a measuring mechanism, which uses a measuring mechanism to determine the physical data information of the line to be inspected (17).

2. The strength testing device for copper-clad steel wire according to claim 1, characterized in that, The quantitative mechanism includes an installation tube (12) fixedly connected to the moving end of a single-head electric slide rail (05), and a connecting column (44) fixedly connected to one side of the installation tube (12). An installation sleeve (18) is fixedly connected to the end of the connecting column (44) away from the installation tube (12). A contact box (08) that contacts the inner wall of the detection box (01) is fixedly connected to one side of the installation sleeve (18). Multiple protective sleeves (43) are provided on the connecting column (44), and the protective sleeves (43) are fixed inside. A telescopic rod two (42) is connected to the telescopic rod two (42). The fixed end of the telescopic rod two (42) is fixedly connected to a limiting ball (40) located inside the protective sleeve (43). The moving end of the telescopic rod two (42) is fixedly connected to a clamping strip (46) located at the center of the limiting ball (40). A symmetrically arranged atomizing tube (41) is also connected to the limiting ball (40). One end of the atomizing tube (41) is located on one side of the line to be inspected (17), and the other end of the atomizing tube (41) is located inside the protective sleeve (43).

3. The strength testing device for copper-clad steel wire according to claim 2, characterized in that, The end of the mounting tube (12) away from the connecting post (44) is connected to a through tube (45). One side of the through tube (45) is connected to a functional strip (04) located on the detection box (01). A one-way valve is provided on the atomizing tube (41). A supplementary hole connected to the outside is provided on one side of the functional strip (04).

4. The strength testing device for copper-clad steel wire according to claim 1, characterized in that, The clamping mechanism includes a fixed ring (06) fixedly connected to the moving end of the bidirectional electric slide rail (09). A rotating ring (10) is rotatably connected inside the fixed ring (06). A rotating box (20) is fixedly connected in the middle of the rotating ring (10). A guide ring (19) is connected to one side of the rotating box (20). A clamping assembly for clamping the line to be inspected (17) is provided inside the rotating box (20). A transmission assembly connected to the rotating box (20) is connected to one side of the clamping assembly. The transmission assembly is located outside the fixed ring (06). Multiple mounting brackets (13) are fixedly connected to the outer periphery of the fixed ring (06). A drive assembly that cooperates with the transmission assembly is connected to one side of the mounting bracket (13).

5. The strength testing device for copper-clad steel wire according to claim 4, characterized in that, The transmission assembly includes an outer drive tube (32) fixedly connected to the rotating box (20). A gear three (23) is fixedly sleeved on the outer side of the outer drive tube (32), and an inner drive tube (31) is rotatably connected to the middle of the outer drive tube (32). A gear one (14) is fixedly sleeved on the outer side of the inner drive tube (31), and an inner ring (30) is rotatably connected to one end of the inner drive tube (31). An outer sleeve (11) is rotatably sleeved on the outer side of the inner ring (30), and a telescopic tube connected to the encapsulation cover (02) is connected to one end of the outer sleeve (11) away from the inner drive tube (31). (07) One end of the inner drive tube (31) is fixedly sleeved with a rotating cone (21) located in the rotating box (20). A plurality of bevel teeth (25) are meshed on one side of the rotating cone (21). A threaded rod (26) is threaded in the middle of the bevel teeth (25). Two limiting blocks (24) are connected to each other on one side of the guide ring (19). A support tube for supporting the bevel teeth (25) is provided between the limiting block (24) and the bevel teeth (25). One end of the threaded rod (26) is sleeved with a clamping block (22) located in the limiting block (24).

6. The strength testing device for copper-clad steel wire according to claim 5, characterized in that, The drive assembly includes a telescopic rod (16) fixedly connected to the mounting bracket (13). The moving end of the telescopic rod (16) is fixedly connected to a motor (33). The output end of the motor (33) is connected to a gear (15). The gear (15) meshes with a gear (23) or a gear (14). The fixed end of the motor (33) is fixedly connected to a limiting frame (27) that cooperates with the gear (14). An elastic element (28) is fixedly connected to one side of the rotating box (20). The moving end of the elastic element (28) is fixedly connected to a limiting frame (29) that contacts the gear (15). The top end of the limiting frame (29) cooperates with the gear (23), and the bottom end of the limiting frame (29) cooperates with a fixing ring (06).

7. The strength testing device for copper-clad steel wire according to claim 6, characterized in that, The gear one (14) is provided with a plurality of receiving holes one for accommodating the limiting frame one (27), the gear three (23) is provided with a plurality of receiving holes two for accommodating the limiting frame two (29), and the fixing ring (06) is also provided with a plurality of receiving holes three for accommodating the other end of the limiting frame two (29).

8. The strength testing device for copper-clad steel wire according to claim 2, characterized in that, The detection box (01) is also provided with multiple partition plates (34), and the partition plates (34) are provided with passage grooves for connecting the column (44) to pass through.

9. A strength testing device for copper-clad steel wire according to claim 3, characterized in that, The air guide box (03) is provided with a filter chamber (51), and an air pump (52) is fixedly connected in the filter chamber (51). The output end of the air pump (52) is fixedly connected with a guide pipe (53), and the guide pipe (53) extends to the top of the air guide box (03). The air guide box (03) is provided with multiple guide plates (55), and a heating coil (54) is provided between two guide plates (55). The top of the air guide box (03) is connected to the encapsulation cover (02). Multiple connecting sleeves (50) are fixedly connected to one side of the encapsulation cover (02), and the connecting sleeves (50) are connected to the telescopic tube (07).

10. A strength testing device for copper-clad steel wire according to claim 9, characterized in that, The filter chamber (51) is filled with filter cotton, and the top of the air guide box (03) is also provided with a water filling hole. Multiple air guide pipes are also provided between the two guide plates (55).

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