Copper wire strength detection device
By adjusting the gap between the clamping plates with an electric push rod and increasing the friction with anti-slip pads, the problem of large workload and slippage during copper wire testing is solved, achieving applicability to multiple sizes and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI ZHENGDAO PRECISION WIRE CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing copper wire strength testing devices require clamps of different sizes, resulting in a large workload and increased costs for replacement, and the copper wire is prone to slippage during the stretching process.
A copper wire strength testing device was designed, which uses an electric push rod to adjust the gap between the clamping plates and combines anti-slip pads to increase friction. It is suitable for copper wires of different sizes and achieves stable tension through ball screws and electric components.
It enables applicability to copper wires of different sizes, reduces the workload of clamp replacement, lowers costs, and improves the stability and safety of the testing process.
Smart Images

Figure CN224176264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper wire testing technology, specifically a copper wire strength testing device. Background Technology
[0002] Copper wire is used as a conductor in daily life. It has excellent electrical conductivity and is widely used in the manufacture of wires, cables, and brushes; it also has good thermal conductivity, making it suitable for manufacturing magnetic instruments and meters that require protection against magnetic interference, such as compasses and aviation instruments; and it has excellent plasticity, making it easy to process by hot and cold pressing, and can be made into copper materials such as tubes, rods, wires, strips, strips, plates, and foils. During the copper wire production process, quality inspection is required, which necessitates the use of strength testing devices.
[0003] However, when testing the strength of copper wire, it is necessary to stretch the copper wire. To facilitate the stretching of the copper wire, clamps are needed to hold the copper wire for stretching. Since copper wires come in different sizes, different clamps are needed for different sizes of copper wires. As the number of different sizes of copper wires increases, the number of clamps required also increases. At this time, testing the strength of copper wires of different sizes will increase the workload of the staff in changing different clamps, and will also increase the cost of using clamps of different sizes. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a copper wire strength testing device, which has the advantages of being applicable to the strength testing of copper wires of different sizes, expanding the applicability of the strength testing device, and preventing the copper wire from slipping on the clamp during the stretching process, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a copper wire strength testing device, comprising a body and a copper wire body. A winding shaft is wound around the right end of the copper wire body. A lower clamping plate located to the left of the winding shaft is movably installed at the left end of the copper wire body. An upper clamping plate located above the copper wire body is movably installed at the upper end of the lower clamping plate. Two sets of lower and upper clamping plates are provided and arranged horizontally at intervals. An electric push rod is fixedly installed at the upper end of the upper clamping plate. A connecting rod is fixedly connected below the winding shaft. A movable component for stretching the copper wire body is provided at the lower end of the connecting rod. A force gauge is fixedly installed at the left end of the lower clamping plate on the left side, and the left end of the force gauge is installed on the inner wall of the body.
[0006] Preferably, a sensor located in front of the force gauge is fixedly installed on the inner wall of the machine body, a display screen is fixedly installed on the front of the machine body, an organic door is hinged to the front of the machine body, and a rectangular groove located above the movable component is opened on the inner wall of the machine body.
[0007] Preferably, the inner wall of the winding shaft is movably fitted with a mounting rod, and the inner wall of the winding shaft is uniformly provided with through holes located outside the mounting rod, and the outer wall of the through holes is uniformly provided with limit grooves.
[0008] Preferably, protrusions located on the front and rear sides of the upper surface of the lower clamping plate are fixedly installed on the front and rear sides of the copper wire body, respectively. The outer wall of the protrusion is movably engaged with a locking block, and the upper end of the locking block is fixedly connected to the lower end of the upper clamping plate. A guide rod located outside the electric push rod is fixedly installed on the upper end of the upper clamping plate. A bracket is movably sleeved on the outer wall of the guide rod. The upper end of the bracket is fixedly connected to the lower end of the electric push rod. The lower end of the output shaft of the electric push rod passes through the upper end of the bracket and is fixedly connected to the upper end of the upper clamping plate. The lower end of the bracket is fixedly connected to the lower clamping plate. Anti-slip pads are fixedly installed on the inner sides of both the lower and upper clamping plates.
[0009] Preferably, the movable component includes a ball nut and a ball screw. The inner wall of the ball nut is threadedly connected to the outer wall of the ball screw. The outer wall of the upper end of the ball nut is movably connected to the inner wall of the rectangular groove. A rotating shaft is fixedly sleeved on the inner wall of the ball screw. A rotary motor located on the right side of the machine body is fixedly installed at the right end of the rotating shaft. A reducer is provided on the output shaft of the rotary motor. A housing is fixedly installed on the outside of the rotary motor, and the left side of the housing is fixedly connected to the right side of the machine body.
[0010] Preferably, the outer wall of the mounting rod is evenly distributed with limiting rods, and the outer wall of the limiting rod is movably engaged with the inner wall of the limiting groove. The rear end of the mounting rod is fixedly installed with a baffle located behind the winding shaft, and the baffle is fixedly connected to the movable component. The front end of the mounting rod is fixedly installed with a threaded rod located in front of the winding shaft, and the outer wall of the threaded rod is threaded with a disc located in front of the winding shaft.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This utility model achieves the adjustment of the position of the upper clamping plate by cooperating with the copper wire body, the upper clamping plate, the lower clamping plate and the electric push rod. By changing the gap between the upper clamping plate and the lower clamping plate, the upper clamping plate and the lower clamping plate can be used for copper wire bodies of different sizes, thereby improving the practicality of the strength testing device.
[0013] 2. This utility model, through the cooperation between the copper wire body, the upper clamping plate, the lower clamping plate and the anti-slip pads, adopts the contact method between the anti-slip pads on the upper and lower sides and the copper wire body, which increases the friction between the upper and lower clamping plates and the copper wire body, and prevents the copper wire body from slipping between the upper and lower clamping plates during the stretching process, thereby strengthening the stability of the copper wire body during the stretching process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a top view of the copper wire body of this utility model;
[0016] Figure 3 This is a top view of the winding shaft of this utility model;
[0017] Figure 4 This is a side view of the active component of this utility model;
[0018] Figure 5 This is a front view of the lower clamping plate of this utility model;
[0019] Figure 6 This is a side view of the through hole in this utility model;
[0020] Figure 7 This is a side view of the limiting rod of this utility model;
[0021] Figure 8 This is a side view of the bracket of this utility model.
[0022] In the diagram: 1. Machine body; 2. Copper wire body; 3. Winding shaft; 4. Lower clamping plate; 5. Upper clamping plate; 6. Electric push rod; 7. Connecting rod; 8. Movable component; 801. Ball nut; 802. Ball screw; 9. Force gauge; 10. Sensor; 11. Display screen; 12. Machine door; 13. Rectangular groove; 14. Mounting rod; 15. Through hole; 16. Limiting groove; 17. Protrusion; 18. Anti-slip pad; 19. Locking block; 20. Guide rod; 21. Bracket; 22. Rotating shaft; 23. Rotary motor; 24. Machine box; 25. Baffle; 26. Limiting rod; 27. Threaded rod; 28. Disc. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 , Figure 3 and Figure 5A copper wire strength testing device includes a body 1 and a copper wire body 2. A winding shaft 3 is wound around the right end of the copper wire body 2, serving as a platform for winding the copper wire body 2. A lower clamping plate 4 is movably mounted on the left end of the copper wire body 2, located to the left of the winding shaft 3. The lower clamping plate 4 provides support for the lower end of the copper wire body 2. An upper clamping plate 5 is movably mounted above the lower clamping plate 4, positioned above the copper wire body 2. Two sets of lower clamping plates 4 and upper clamping plates 5 are arranged horizontally at intervals. The upper clamping plate 5 serves to test the strength of the copper wire body. The upper end of the body 2 is pressurized. An electric push rod 6 is fixedly installed on the upper end of the upper clamping plate 5. The extension and retraction of the output shaft inside the electric push rod 6 provides power for the stretching of the right end of the copper wire body 2. A connecting rod 7 is fixedly connected to the lower part of the winding shaft 3. The connecting rod 7 is set to connect the winding shaft 3 and the movable component 8. The lower end of the connecting rod 7 is provided with the movable component 8 for stretching the copper wire body 2. A force gauge 9 is fixedly installed on the left end of the lower clamping plate 4 on the left side, and the left end of the force gauge 9 is installed on the inner wall of the machine body 1.
[0025] A sensor 10 is fixedly installed on the inner wall of the body 1 in front of the force gauge 9. A display screen 11 is fixedly installed on the front of the body 1. The display screen 11, the sensor 10 and the force gauge 9 are electrically connected. The front of the body 1 is hinged to a door 12. A rectangular groove 13 is opened on the inner wall of the body 1 above the movable component 8.
[0026] Please see Figure 2 , Figure 6 and Figure 8 The inner wall of the winding shaft 3 is movably fitted with a mounting rod 14. The inner wall of the winding shaft 3 is evenly provided with through holes 15 located outside the mounting rod 14. The opening of the through holes 15 provides space for the installation of the mounting rod 14, so that the winding shaft 3 can be installed outside the mounting rod 14. The outer wall of the through holes 15 is evenly provided with limit grooves 16.
[0027] The upper end face of the lower clamping plate 4 is fixedly equipped with protrusions 17 located on the front and rear sides of the copper wire body 2, respectively. A locking block 19 is movably engaged with the outer wall of the protrusion 17, and the upper end of the locking block 19 is fixedly connected to the lower end face of the upper clamping plate 5. The engagement of the protrusion 17 and the locking block 19 restricts the installation position of the lower clamping plate 4 and the upper clamping plate 5. A guide rod 20 located outside the electric push rod 6 is fixedly installed on the upper end face of the upper clamping plate 5. The installation of the guide rod 20 restricts the lifting and lowering path of the upper clamping plate 5. The outer wall is movably fitted with a bracket 21. The upper end of the bracket 21 is fixedly connected to the lower end of the electric push rod 6. The lower end of the output shaft of the electric push rod 6 passes through the upper end of the bracket 21 and is fixedly connected to the upper end of the upper clamping plate 5. The lower end of the bracket 21 is fixedly connected to the lower clamping plate 4. Anti-slip pads 18 are fixedly installed on the inner sides of both the lower clamping plate 4 and the upper clamping plate 5. The anti-slip pads 18 increase the friction between the lower clamping plate 4 and the upper clamping plate 5 and the contact surface of the copper wire body 2, preventing the copper wire body 2 from slipping during the strength test.
[0028] Please see Figure 4 and Figure 7 The movable component 8 includes a ball nut 801 and a ball screw 802. The inner wall of the ball nut 801 is threadedly connected to the outer wall of the ball screw 802. This threaded connection allows the ball screw 802 to rotate circumferentially while simultaneously driving the ball nut 801 to move horizontally. The outer wall of the upper end of the ball nut 801 is movably connected to the inner wall of the rectangular groove 13. A rotating shaft 22 is fixedly sleeved on the inner wall of the ball screw 802. A rotary motor 23 located on the right side of the machine body 1 is fixedly installed on the right end of the rotating shaft 22. A reducer is provided on the output shaft of the rotary motor 23. The reducer is used to adjust the speed of the output shaft of the rotary motor 23. A housing 24 is fixedly installed on the outside of the rotary motor 23. The left side of the housing 24 is fixedly connected to the right side of the machine body 1. The housing 24 protects the rotary motor 23.
[0029] Limiting rods 26 are evenly distributed on the outer wall of the mounting rod 14, and the outer wall of the limiting rod 26 is movably engaged with the inner wall of the limiting groove 16. A baffle 25 located behind the winding shaft 3 is fixedly installed at the rear end of the mounting rod 14, and the baffle 25 is fixedly connected to the movable component 8. A threaded rod 27 located in front of the winding shaft 3 is fixedly installed at the front end of the mounting rod 14. A disc 28 located in front of the winding shaft 3 is threadedly sleeved on the outer wall of the threaded rod 27. The threaded connection method allows the disc 28 to not only be installed on the threaded rod 27 to restrict the position of the winding shaft 3 on the mounting rod 14, but also to facilitate the removal of the disc 28 from the threaded rod 27 to replace the winding shaft 3.
[0030] Working principle: In use, first, place the copper wire body 2 to be tested inside the machine body 1, and place the left end of the copper wire body 2 under the lower end of the left side clamping plate 4. Turn on the power of the electric push rod 6, and use the extension of the output shaft inside the electric push rod 6 to cover the upper clamping plate 5 on the copper wire body 2. At this time, the locking block 19 and the protrusion 17 are engaged. The anti-slip pads 18 on the lower clamping plate 4 and the upper clamping plate 5 increase the friction between the outer wall of the left end of the copper wire body 2 and the contact surface of the upper clamping plate 5 and the lower clamping plate 4, preventing the copper wire body 2 from slipping off the lower clamping plate 4. Then, install the right end of the copper wire body 2 on the mounting rod 14, and put the winding shaft 3 on the outside of the mounting rod 14. At this time, the limiting groove 16 is engaged with the limiting rod 26, and the through hole 15 is engaged with the mounting rod 14, so that the winding shaft can be wound. The spool 3 is mounted on the mounting rod 14 to fix the copper wire body 2. Then, the power of the rotary motor 23 is turned on. The turning on of the rotary motor 23 drives the rotation of the ball screw 802 through the connection of the rotating shaft 22. Due to the threaded connection between the ball screw 802 and the ball nut 801, the ball screw 802 can rotate in a circular direction while the ball nut 801 can move horizontally. The movement of the ball nut 801 stretches the copper wire body 2 through the lower clamping plate 4 and the upper clamping plate 5 on the right side. Finally, the force gauge 9 is set to detect the tensile force of the copper wire body 2. After passing through the sensor 10, the data is transmitted to the display screen 11, which is convenient for the staff to detect the copper wire body 2. In addition, the closing of the machine door 12 can also protect the staff.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A copper wire strength testing device, comprising a body (1) and a copper wire body (2), characterized in that: The right end of the copper wire body (2) is wound with a winding shaft (3). The left end of the copper wire body (2) is movably installed with a lower clamping plate (4) located to the left of the winding shaft (3). The upper end of the lower clamping plate (4) is movably installed with an upper clamping plate (5) located above the copper wire body (2). The lower clamping plate (4) and the upper clamping plate (5) are provided in two sets and arranged horizontally at intervals. The upper end of the upper clamping plate (5) is fixedly installed with an electric push rod (6). The lower end of the winding shaft (3) is fixedly connected with a connecting rod (7). The lower end of the connecting rod (7) is provided with a movable component (8) for stretching the copper wire body (2). The left end of the left side of the lower clamping plate (4) is fixedly installed with a force gauge (9), and the left end of the force gauge (9) is installed on the inner wall of the machine body (1).
2. The copper wire strength testing device according to claim 1, characterized in that: The inner wall of the body (1) is fixedly installed with a sensor (10) located in front of the force gauge (9), the front of the body (1) is fixedly installed with a display screen (11), the front of the body (1) is hinged with a door (12), and the inner wall of the body (1) is provided with a rectangular groove (13) located above the movable component (8).
3. The copper wire strength testing device according to claim 1, characterized in that: The inner wall of the winding shaft (3) is movably sleeved with an installation rod (14), and the inner wall of the winding shaft (3) is evenly provided with through holes (15) located outside the installation rod (14), and the outer wall of the through holes (15) is evenly provided with limit grooves (16).
4. The copper wire strength testing device according to claim 1, characterized in that: The front and rear sides of the upper end face of the lower clamping plate (4) are respectively fixedly installed with protrusions (17) located on the front and rear sides of the copper wire body (2). The outer wall of the protrusion (17) is movably engaged with a locking block (19), and the upper end of the locking block (19) is fixedly connected to the lower end face of the upper clamping plate (5). The upper end face of the upper clamping plate (5) is fixedly installed with a guide rod (20) located outside the electric push rod (6). The outer wall of the guide rod (20) is movably sleeved with a bracket (21). The upper end face of the bracket (21) is fixedly connected to the lower end of the electric push rod (6). The lower end of the output shaft of the electric push rod (6) passes through the upper end of the bracket (21) and is fixedly connected to the upper end face of the upper clamping plate (5). The lower end of the bracket (21) is fixedly connected to the lower clamping plate (4). Anti-slip pads (18) are fixedly installed on the inner sides of both the lower clamping plate (4) and the upper clamping plate (5).
5. The copper wire strength testing device according to claim 2, characterized in that: The movable component (8) includes a ball nut (801) and a ball screw (802). The inner wall of the ball nut (801) is threadedly connected to the outer wall of the ball screw (802). The outer wall of the upper end of the ball nut (801) is movably connected to the inner wall of the rectangular groove (13). A rotating shaft (22) is fixedly sleeved on the inner wall of the ball screw (802). A rotary motor (23) located on the right side of the machine body (1) is fixedly installed at the right end of the rotating shaft (22). A reducer is provided on the output shaft of the rotary motor (23). A housing (24) is fixedly installed on the outside of the rotary motor (23). The left side of the housing (24) is fixedly connected to the right side of the machine body (1).
6. The copper wire strength testing device according to claim 3, characterized in that: The outer wall of the mounting rod (14) is evenly distributed with limiting rods (26), and the outer wall of the limiting rod (26) is movably engaged with the inner wall of the limiting groove (16). The rear end of the mounting rod (14) is fixedly installed with a baffle (25) located behind the winding shaft (3), and the baffle (25) is fixedly connected with the movable component (8). The front end of the mounting rod (14) is fixedly installed with a threaded rod (27) located in front of the winding shaft (3), and the outer wall of the threaded rod (27) is threadedly fitted with a disc (28) located in front of the winding shaft (3).