Tensile stress detection equipment for new energy cable production

Abstract

The invention relates to the technical field of cable detection, in particular to tensile stress detection equipment for new energy cable production, which comprises a fixed base, and rubber vibration isolators and damping rods are fixedly arranged on the periphery of the top of the fixed base; the detection frame is located over the fixed base, and the bottom of the detection frame is fixedly connected with the top ends of the four rubber vibration isolators and the top ends of the four damping rods. The rubber vibration isolator and the damping rod are arranged between the fixed base and the detection frame, so that vibration energy generated in the detection process can be effectively absorbed, the influence of external vibration interference on a detection result is reduced, the accuracy and reliability of detection data are improved, and meanwhile, the operation noise of equipment is reduced; besides, the detection frame is connected with the fixed base through a rubber vibration isolator and a damping rod, vibration is further isolated, the detachable top plate facilitates overhaul and maintenance of internal structural components of the detection frame, the equipment maintenance difficulty and cost are reduced, and long-term stable operation of the equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and particularly to a tensile stress detection device for the production of new energy cables. Background Art

[0002] At present, with the booming development of the new energy industry, as a key component for power transmission and signal conduction, the performance of new energy cables directly affects the operation stability and safety of new energy equipment. Tensile stress is one of the core indicators for measuring the quality of cables. Accurate tensile stress detection can effectively evaluate the ability of cables to resist tensile loads during actual use, ensure that the cables do not break under complex working conditions, and is crucial for ensuring the stable operation of new energy systems. Most of the existing tensile stress detection devices lack accurate simulation of the detection environment, and cannot effectively evaluate the tensile performance of cables under different temperature and humidity conditions, making it difficult to meet the diverse usage scenario requirements of new energy cables. On the other hand, during the detection process, the vibration control ability of the devices is weak, and external vibration interference easily causes deviations in the detection data, affecting the accuracy and reliability of the detection results. In addition, traditional devices have relatively single functions, often only being able to complete single tensile stress detection and unable to perform internal damage detection on the cables after detection, making it difficult to comprehensively evaluate the quality of cables.

[0003] Therefore, we have proposed a tensile stress detection device for the production of new energy cables. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a tensile stress detection device for the production of new energy cables to solve the above-mentioned technical defects.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A tensile stress detection device for the production of new energy cables, comprising: A fixed base, and rubber vibration isolators and shock damping rods are fixedly arranged around the top of the fixed base; A detection frame, located directly above the fixed base, and its bottom is fixedly connected to the tops of the four rubber vibration isolators and the four shock damping rods; A feeding unit, located on the front of the detection frame, including a feeding sliding frame and a micro servo electric cylinder. There is a through - hole for cable feeding on the front of the detection frame. The two sides inside the through - hole are slidably provided with feeding sliding frames through electric slides. On the opposite sides of the two feeding sliding frames, feeding rotating frames are rotatably arranged, and on the opposite sides of the two feeding sliding frames, micro servo motors are fixedly arranged; The detection unit is located inside the detection rack and includes a detection dynamic rack, an environment regulation rack, a speed regulation rack, and a state detection rack. The detection dynamic rack is rotatably arranged inside the detection rack. A dynamic driving motor for driving the detection dynamic rack to rotate is fixedly arranged on the left side of the detection rack. Displacement driving racks are fixedly arranged above, below, and in the middle on both sides of the inner wall of the detection rack. An environment regulation rack is slidably arranged between the displacement driving racks below both sides of the inner wall of the detection rack. A speed regulation rack is slidably arranged between the displacement driving racks in the middle on both sides of the inner wall of the detection rack. A state detection rack is slidably arranged between the displacement driving racks above both sides of the inner wall of the detection rack.

[0006] Preferably, a number of micro servo cylinders are fixedly arranged inside each of the two feeding rotary racks. The number of micro servo cylinders is arranged at equal angles with respect to the central axis of the feeding rotary rack. The driving ends of the number of micro servo cylinders are all fixedly provided with first cable grippers.

[0007] Preferably, a cleaning linear slide rail is fixedly arranged above the front surface of the detection rack. A sliding block is slidably arranged on the front surface of the cleaning linear slide rail. A first control electric push rod is fixedly arranged on the front surface of the sliding block. The driving end of the first control electric push rod is fixedly provided with a second control electric push rod. A cleaning mounting block is fixedly arranged at the bottom end of the driving shaft of the second control electric push rod. A cleaning sponge is arranged inside the cleaning mounting block. A notch is arranged in the middle of the cleaning sponge.

[0008] Preferably, a number of dynamic detection cavities are arranged on the outer peripheral surface of the detection dynamic rack. The number of dynamic detection cavities is arranged at equal angles with respect to the central axis of the detection dynamic rack. A first servo linear slide is fixedly arranged on one side of the inner wall of the dynamic detection cavity. Two sliding detection blocks are slidably arranged on one side of the first servo linear slide. A connecting frame is movably arranged on one side of each of the two sliding detection blocks. Second cable grippers are symmetrically slid up and down inside the connecting frame through built-in electric sliders.

[0009] Preferably, clamping components are fixedly arranged above and below one side of the sliding detection block. The clamping component includes a convex block and a second cable gripper. Convex blocks are fixedly arranged above and below one side of the convex block close to the connecting frame. Second cable grippers are movably arranged on both sides inside the two convex blocks through built-in electric push rods. Connecting grooves matching the convex blocks are arranged above and below the front and back surfaces of the connecting frame. Card slots matching the second cable grippers are arranged on both sides of the inner wall of the connecting groove.

[0010] Preferably, an installation frame is fixedly arranged inside the speed control frame. A sliding groove is arranged inside the installation frame. A ball screw is rotatably arranged inside the sliding groove. A lead screw nut is connected to the surface of the ball screw through ball rolling. One side of the lead screw nut extends to the outside of the sliding groove and is fixedly provided with a connecting block. A sealing strip is fixedly arranged on the front side inside the sliding groove. An opening is arranged in the middle of the sealing strip. A connecting plate is movably arranged on the front surface of the connecting block through a built-in micro electric cylinder. The above-mentioned clamping components are also arranged above and below the front surface of the connecting plate.

[0011] Preferably, a servo motor is fixedly arranged on one side inside the speed control frame. The output shaft of the servo motor is fixedly provided with a sun gear. A plurality of planet gears and a planet carrier are also rotatably arranged on one side inside the speed control frame. The tooth surfaces of the plurality of planet gears are respectively meshed and driven with the external tooth surface of the sun gear and the internal tooth surface of the planet carrier. One side of the planet carrier is fixedly connected to one end of the ball screw.

[0012] Preferably, a second servo linear slide is fixedly arranged on one side of the inner wall of the state detection frame. A reciprocating moving frame is slidably arranged on one side of the second servo linear slide. An arc detection frame is slidably arranged on one side of the reciprocating moving frame through a built-in electric slide. An arc limiting groove is arranged on the inner wall of the arc detection frame. An arc driving tooth groove is arranged on one side of the inner wall of the arc limiting groove. A driving block is slidably arranged inside the arc limiting groove. A driving gear is rotatably arranged on one side of the driving block close to the arc driving tooth groove. The tooth surface of the driving gear is meshed and driven with the tooth surface of the arc driving tooth groove. A microwave detection sensor is fixedly arranged on one side of the driving block. The microwave detection sensor is in communication connection with the tensile stress detection terminal through a built-in wireless communication module.

[0013] Preferably, positioning holes and sealing grooves are arranged on the outer peripheral surface of the detection dynamic frame. Positioning columns and sealing washers are arranged on the sides of the environment control frame, speed control frame and state detection frame close to the detection dynamic frame.

[0014] Preferably, flexible buffer layers are arranged on the opposite sides of the first cable clamping jaw and the second cable clamping jaw. The flexible buffer layer is composed of a composite of memory sponge and high-elastic rubber.

[0015] Compared with the prior art, the following beneficial effects are achieved: 1. In the present invention, by arranging a rubber vibration isolator and a shock damping rod between the fixed base and the detection frame, the vibration energy generated during the detection process can be effectively absorbed, the influence of external vibration interference on the detection result can be reduced, the accuracy and reliability of the detection data can be improved, and at the same time, the operation noise of the equipment can be reduced. In addition, the detection frame is connected to the fixed base through the rubber vibration isolator and the shock damping rod, further isolating vibration. The detachable top plate facilitates the maintenance and repair of the internal structural components of the detection frame, reduces the maintenance difficulty and cost of the equipment, and ensures the long-term stable operation of the equipment.

[0016] 2. Let the feeding sliding frame slide in the through-hole of the detection frame through the electric sliding table. Combining with the first cable clamping jaw driven by the micro servo electric cylinder, the two ends of the cable can be automatically clamped and fed into the detection frame, realizing automatic feeding, improving the detection efficiency, and reducing the manual operation error. The micro servo motor controls the rotation of the feeding rotating frame, which can flexibly adjust the feeding angle and direction of the cable to meet the detection requirements of different specifications of cables. In addition, through the coordinated action of the cleaning linear slide rail, the first control electric push rod and the second control electric push rod, the cleaning mounting block and the cleaning sponge inside it can be driven to clean the surface of the cable in all directions, removing oil stains, dust and impurities, avoiding the influence of surface foreign matters on the detection result, and improving the detection accuracy.

[0017] 3. In the present invention, flexible buffer layers are arranged on both sides of the first cable clamping jaw and the second cable clamping jaw opposite to each other. The buffer layer is composed of memory sponge and high-elastic rubber. When clamping the cable, the flexible buffer layer can adaptively fit the surface of the cable, avoiding hard damage to the cable surface by the clamping jaw. During the high-acceleration tensile test, when the tensile force changes suddenly, the flexible buffer layer can absorb part of the energy, buffer the impact of the tensile force change on the cable, prevent the cable from breaking in advance due to instantaneous excessive stress concentration, make the test closer to the stress-strain situation in the actual use of the cable, and obtain more accurate cable ultimate tensile data.

[0018] Other features and advantages of the present invention will be described in the subsequent description, and, in part, will become apparent from the description or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structure pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a tensile stress detection device for new energy cable production according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the feeding unit according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the rubber vibration isolator and the shock damping rod according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the detection unit according to an embodiment of the present invention; Figure 5 Schematic diagram for detecting the internal structure of the dynamic rack in the embodiment of the present invention; Figure 6 Schematic diagram for the structure of the sliding detection block and the connecting rack in the embodiment of the present invention; Figure 7 Schematic diagram for detecting the internal structure of the speed control rack in the embodiment of the present invention; Figure 8 Schematic diagram for the structure of the mounting rack and the connecting block in the embodiment of the present invention; Figure 9 Schematic diagram for the structure of the servo motor, sun gear, planet gear and planet carrier in the embodiment of the present invention; Figure 10 Schematic diagram for detecting the internal structure of the status detection rack in the embodiment of the present invention; Figure 11 For the present invention Figure 10 Enlarged view of the structure at position A in the present invention.

[0020] In the figure, 1, fixed base; 2, detection rack; 3, feeding unit; 4, detection unit; 5, rubber vibration isolator; 6, shock damping rod; 7, feeding sliding rack; 8, feeding rotating rack; 9, micro servo electric cylinder; 10, first cable gripper; 11, micro servo motor; 12, cleaning linear slide rail; 13, first control electric push rod; 14, second control electric push rod; 15, cleaning mounting block; 16, sliding block; 17, dynamic detection rack; 18, dynamic drive motor; 19, displacement drive rack; 20, environmental control rack; 21, speed control rack; 22, status detection rack; 23, dynamic detection cavity; 24, first servo linear slide table; 25, sliding detection block; 26, connecting rack; 27, second cable gripper; 28, bump; 29, telescopic clamping block; 30, connecting groove; 31, clamping groove; 32, positioning hole; 33, sealing groove; 34, positioning column; 35, sealing gasket; 36, mounting rack; 37, sliding groove; 38, ball screw; 39, screw nut; 40, sealing strip; 41, connecting block; 42, servo motor; 43, sun gear; 44, planet gear; 45, planet carrier; 46, reciprocating moving rack; 47, arc detection rack; 48, arc limiting groove; 49, arc drive tooth groove; 51, drive block; 52, microwave detection sensor; 53, second servo linear slide table. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1 Please refer to Figures 1 to 11 as shown, a tensile stress detection device for new energy cable production, comprising: A fixed base 1, rubber vibration isolators 5 and shock damping rods 6 are fixedly arranged around the top of the fixed base 1, and dampers are arranged inside both the rubber vibration isolators 5 and the shock damping rods 6; wherein the fixed base 1 is fixedly connected to the top of the working platform by bolts through the bolt holes arranged around, and the fixed base 1 is fixed to the working platform by bolts to ensure the overall stability of the equipment. The rubber vibration isolators 5 and the shock damping rods 6 are internally provided with dampers, which can effectively absorb the vibration energy generated during the detection process, reduce the influence of external vibration interference on the detection results, improve the accuracy and reliability of the detection data, and at the same time reduce the operation noise of the equipment; in addition, the detection frame 2 is connected to the fixed base 1 through the rubber vibration isolators 5 and the shock damping rods 6 to further isolate the vibration. The detachable top plate facilitates the overhaul and maintenance of the internal structural components of the detection frame 2, reduces the equipment maintenance difficulty and cost, and ensures the long-term stable operation of the equipment.

[0023] A detection frame 2, the detection frame 2 is arranged directly above the fixed base 1, and the bottom of the detection frame 2 is fixedly connected to the tops of the four rubber vibration isolators 5 and the four shock damping rods 6; wherein the connection mode between the bottom of the detection frame 2 and the top of the shock damping rod 6 can be bolted or welded, and a detachable top plate is arranged on the top of the detection frame 2 for overhaul and maintenance of the internal structural components of the detection frame 2.

[0024] The feeding unit 3 is arranged on the front side of the detection rack 2. Among them, the feeding unit 3 includes a feeding sliding rack 7 and a micro servo electric cylinder 9. A through port for feeding the cable is arranged on the front side of the detection rack 2. And the feeding sliding rack 7 is slidably arranged on both sides inside the through port through an electric slide table. The electric slide table adopts a linear module structure, with the model of KK60-C, a stroke of 500 mm, and a repeat positioning accuracy of ±0.02 mm. It receives the pulse signal sent by the PLC through the servo driver for precise position control. On the opposite side of the two feeding sliding racks 7, a feeding rotating rack 8 is rotatably arranged. And on the opposite side of the two feeding sliding racks 7, a micro servo motor 11 for driving the feeding rotating rack 8 to rotate is fixedly arranged. Inside the two feeding rotating racks 8, a number of micro servo electric cylinders 9 are fixedly arranged. And the number of micro servo electric cylinders 9 is arranged at equal angles around the central axis of the feeding rotating rack 8. The driving ends of the number of micro servo electric cylinders 9 are all fixedly provided with first cable clamping jaws 10. The two ends of the cable to be detected are clamped and positioned by the first cable clamping jaws 10 on the two feeding rotating racks 8. Then, the feeding rotating rack 8 is controlled to rotate by the micro servo motor 11, so that the clamped and positioned cable faces the inside of the detection rack 2. Driven by the driving end of the micro servo electric cylinder 9, the cable is sent into the inside of the detection rack 2 to complete the automatic feeding of the cable. The model of the micro servo electric cylinder 9 is EC-10-50-S, with a rated thrust of 100 N and a stroke of 50 mm. It communicates with the control system through the CAN bus and receives the control instruction to achieve precise telescoping. The model of the micro servo motor 11 is MS-08-200, with a rated power of 200 W and a torque of 0.637 N·m. It is connected to the control system through the pulse + direction signal to achieve precise speed and angle control, ensuring that the feeding rotating rack 8 can accurately adjust the cable feeding angle.

[0025] It should be noted that the feeding sliding rack 7 slides in the through port of the detection rack 2 through the electric slide table. Combined with the first cable clamping jaws 10 driven by the micro servo electric cylinder 9, it can automatically clamp both ends of the cable and send it into the detection rack 2, realizing automatic feeding, improving the detection efficiency, and reducing the manual operation error. The micro servo motor 11 controls the rotation of the feeding rotating rack 8, which can flexibly adjust the cable feeding angle and direction to meet the detection requirements of different specifications of cables.

[0026] Furthermore, in order to ensure the accuracy of the tensile stress detection results of the cable, a cleaning linear slide rail 12 is fixedly arranged above the front of the detection frame 2, and a sliding block 16 is slidably arranged on the front of the cleaning linear slide rail 12. A first control electric push rod 13 is also fixedly arranged on the front of the sliding block 16, and a second control electric push rod 14 is fixedly arranged at the driving end of the first control electric push rod 13. A cleaning mounting block 15 is fixedly arranged at the bottom end of the driving shaft of the second control electric push rod 14, and a cleaning sponge is arranged inside the cleaning mounting block 15; a cut is arranged in the middle of the cleaning sponge. After clamping and positioning the two ends of the cable to be detected by the first cable clamping jaws 10 on the two feeding rotary frames 8, by controlling the two feeding sliding frames 7 to move to both sides, the cable to be detected is in a horizontal and straightened state. Then, the driving end of the first control electric push rod 13 is used to control the second control electric push rod 14 to move forward, and the driving end of the second control electric push rod 14 is used to control the cleaning mounting block 15 to move downward. The cleaning sponge inside the cleaning mounting block 15 is used to remove oil stains, dust, and impurities on the surface of the cable to be detected, thereby improving the accuracy of the subsequent detection results of the cable to be detected; the cleaning sponge is made of high-density polyurethane sponge, with a density of 30 kg / m³, a hardness of 20 HA, the cut is V-shaped, the angle is 60°, and the depth is designed to be adjustable according to the cable diameter range and is processed by numerical control laser cutting; both the first control electric push rod 13 and the second control electric push rod 14 are electric push rods, with a model of DT-50, a stroke of 100 mm, and a thrust of 50 N. The linkage control is realized through PLC programming. First, the first control electric push rod 13 drives the second control electric push rod 14 to move forward to a suitable position above the cable, and then the second control electric push rod 14 drives the cleaning mounting block 15 to move downward so that the cleaning sponge contacts the cable surface. Then, the cleaning linear slide rail 12 drives the whole device to move along the cable for cleaning.

[0027] It should be noted that through the coordinated actions of the cleaning linear slide rail 12, the first control electric push rod 13, and the second control electric push rod 14, the cleaning mounting block 15 and the cleaning sponge inside it can be driven to clean the cable surface comprehensively, remove oil stains, dust, and impurities, avoid the influence of surface foreign objects on the detection results, and improve the detection accuracy.

[0028] Embodiment 2 The detection unit 4 is arranged inside the detection rack 2. Among them, the detection unit 4 includes a detection dynamic rack 17, an environmental regulation rack 20, a speed regulation rack 21 and a state detection rack 22. The detection dynamic rack 17 is rotatably arranged inside the detection rack 2, and a dynamic drive motor 18 for driving the detection dynamic rack 17 to rotate is fixedly arranged on the left side of the detection rack 2. It should be noted that the model of the dynamic drive motor 18 is MGM130-15, with a rated power of 1.5 kW, a speed range of 0-1500 r / min, a control accuracy of ±1 r / min, communicates with the control system through the Modbus-RTU protocol, and uses the PID control algorithm to achieve stable speed control; displacement drive racks 19 are fixedly arranged above and below and in the middle on both sides of the inner wall of the detection rack 2, and an environmental regulation rack 20 is slidably arranged between the displacement drive racks 19 located below both sides of the inner wall of the detection rack 2, a speed regulation rack 21 is slidably arranged between the displacement drive racks 19 located in the middle of both sides of the inner wall of the detection rack 2, and a state detection rack 22 is slidably arranged between the displacement drive racks 19 located above both sides of the inner wall of the detection rack 2; it should be noted that after the cable to be detected is sent into the inside of the detection dynamic rack 17 through the feeding unit 3, the detection dynamic rack 17 is controlled to rotate downward. First, the contact between the environmental regulation rack 20 and the detection dynamic rack 17 is used to regulate the temperature and humidity of the cable to be detected inside the detection dynamic rack 17, so as to perform tensile stress detection on the cable in different temperature and humidity environments; then the detection dynamic rack 17 is controlled to rotate, so that the speed regulation rack 21 contacts one side of the detection dynamic rack 17, and tensile stress detection with different accelerations is performed on the cable to be detected between the speed regulation rack 21 and the inside of the detection dynamic rack 17; finally, by controlling the connection between the state detection rack 22 and the detection dynamic rack 17, the internal damage of the cable after the tensile stress detection is explored. By using a periodic rotation of the detection dynamic rack 17 inside the detection rack 2, the tensile stress detection of the cable in different environments, the tensile stress detection under different acceleration conditions and the exploration of the internal damage of the cable are realized, greatly improving the efficiency of the tensile stress detection of the cable.

[0029] Specifically, several dynamic detection chambers 23 are provided on the outer peripheral surface of the dynamic detection frame 17, and the several dynamic detection chambers 23 are arranged at equal angles with respect to the central axis of the dynamic detection frame 17. On one side of the inner wall of the dynamic detection chamber 23, a first servo linear slide 24 is fixedly provided, and two sliding detection blocks 25 are slidably provided on one side of the first servo linear slide 24. On one side of each of the two sliding detection blocks 25, a connecting frame 26 is movably provided, and a second cable clamp 27 is slidably provided symmetrically up and down inside the connecting frame 26 through an internal electric slider; on the opposite sides of the first cable clamp 10 and the second cable clamp 27, a flexible buffer layer is provided, and the buffer layer is composed of a composite of memory sponge and high-elastic rubber. When clamping the cable, the flexible buffer layer can adaptively fit the surface of the cable to avoid hard damage to the cable surface by the clamp. During the high-acceleration tensile test, when the tensile force suddenly changes, the flexible buffer layer can absorb part of the energy and buffer the impact of the tensile force change on the cable, preventing the cable from breaking prematurely due to instantaneous excessive stress concentration, making the test closer to the stress-strain situation in the actual use of the cable and obtaining more accurate cable ultimate tensile data.

[0030] Furthermore, clamping components are fixedly provided above and below one side of the sliding detection block 25. The clamping component includes a convex block 28 and the second cable clamp 27. Above and below the side of the convex block 28 close to the connecting frame 26, convex blocks 28 are fixedly provided, and the second cable clamps 27 are movably provided on both sides inside the two convex blocks 28 through internal electric push rods. On the upper and lower sides of the front and back of the connecting frame 26, connection grooves 30 matching the convex blocks 28 are provided, and on both sides of the inner wall of the connection groove 30, clamping grooves 31 matching the second cable clamp 27 are provided; It should be noted that the clamping component realizes the quick connection and disassembly of the sliding detection block 25 and the connecting frame 26 through the cooperation of the convex block 28, the second cable clamp 27 and the connection groove 30 and the clamping groove 31, facilitating the flexible adjustment of the cable connection method in different detection links, meeting the multi-functional detection requirements, and improving the convenience and flexibility of the detection operation.

[0031] Insert the convex block 28 on the front of the sliding detection block 25 into the connection groove 30 on the back of the connecting frame 26, and then control the second cable clamps 27 on both sides of the convex block 28 to insert into the clamping grooves 31 on both sides inside the connection groove 30 to complete the connection between the sliding detection block 25 and the connecting frame 26; when controlling the separation between the sliding detection block 25 and the connecting frame 26, control the second cable clamp 27 to disengage from the inside of the clamping groove 31, and then pull out the convex block 28 from the inside of the connection groove 30 to realize the disassembly between the sliding detection block 25 and the connecting frame 26.

[0032] Further, in order to ensure that the cable is not affected by external factors during the tensile stress detection, positioning holes 32 and sealing grooves 33 are provided on the outer peripheral surface of the detection dynamic frame 17, and positioning posts 34 and sealing gaskets 35 are provided on one side of the environment control frame 20, speed control frame 21 and state detection frame 22 close to the detection dynamic frame 17; when the environment control frame 20, speed control frame 21 and state detection frame 22 are fitted to one side of the detection dynamic frame 17, the connection stability between the environment control frame 20, speed control frame 21, state detection frame 22 and detection dynamic frame 17 is ensured by the mating connection between the positioning posts 34 and positioning holes 32, and at the same time, the interior of the dynamic detection cavity 23 is isolated from the outside by the connection between the sealing gasket 35 and the sealing groove 33.

[0033] Embodiment 3 Further, both sides inside the environment control frame 20 are respectively communicated with a temperature control device and a humidity control device through conduits. The environment control frame 20 is connected to the temperature control device (model: TC-100) and the humidity control device (model: HC-200) through an RS485 interface, and communicates using the Modbus protocol. The temperature regulation range is -20°C - 80°C, with an accuracy of ±0.5°C; the humidity regulation range is 20% - 90%RH, with an accuracy of ±2%RH. The precise regulation of the temperature and humidity inside the dynamic detection cavity 23 is achieved through the PID control algorithm; an installation frame 36 is fixedly provided inside the speed control frame 21, and a sliding groove 37 is provided inside the installation frame 36. A ball screw 38 is rotatably provided inside the sliding groove 37, and a lead screw nut 39 is connected to the surface of the ball screw 38 through ball rolling. One side of the lead screw nut 39 extends outside the sliding groove 37, and a connection block 41 is fixedly provided on one side of the lead screw nut 39. A sealing rubber strip 40 is also fixedly provided on the front side inside the sliding groove 37, and an opening is provided in the middle of the sealing rubber strip 40; a connecting plate is movably provided on the front surface of the connection block 41 through a built-in micro cylinder, and clamping components are also provided above and below the front surface of the connecting plate.

[0034] It should be noted that the ball screw 38 is made of alloy steel, with an accuracy grade of C5, processed by a high-precision grinding process, and the surface hardness reaches HRC58 - 62; the lead screw nut 39 is used in combination with the ball screw 38, the material is tin bronze, and the fitting clearance between the inner hole and the ball screw 38 is controlled between 0.005 - 0.01mm; the sealing rubber strip 40 is made of silicone rubber material, has good elasticity and aging resistance, and the opening size matches the outer diameter of the lead screw nut 39 to ensure that the sliding groove 37 can be effectively sealed while the lead screw nut 39 is moving without affecting its normal sliding.

[0035] On one side inside the speed regulation frame 21, a servo motor 42 is fixedly arranged. It should be noted that the model of the servo motor 42 is ECMA-C10807RS, with a rated power of 750W, a speed range of 0 - 3000 r / min, a control accuracy of ±0.01°, connected to the control system through the EtherCAT bus, and adopting a position-speed-torque three-closed-loop control algorithm to achieve precise drive of the ball screw (38), thereby performing tensile stress detection on the cable with different accelerations; and the output shaft of the servo motor 42 is fixedly provided with a sun gear 43. On one side inside the speed regulation frame 21, several planet gears 44 and a planet carrier 45 are also rotatably arranged, and the tooth surfaces of several planet gears 44 are respectively meshed and driven with the external teeth of the sun gear 43 and the internal teeth of the planet carrier 45. One side of the planet carrier 45 is fixedly connected to one end of the ball screw 38.

[0036] It should be noted that after controlling the side of the speed regulation frame 21 and the detection dynamic frame 17 to fit together, the connecting plate on the front of the connecting block 41 is moved closer to the front of the connecting frame 26. The two clamping components on the front of the connecting plate are connected to the two connecting grooves 30 and the clamping groove 31 arranged on the front of the connecting frame 26. At the same time, the connection between the clamping component on the front of the sliding detection block 25 and the connecting grooves 30 and the clamping groove 31 on the back of the connecting frame 26 is released, and the driving end of the micro electric cylinder inside the connecting block 41 is controlled to reset, so that the connecting frame 26 and the sliding detection block 25 are separated. At this time, the output shaft of the servo motor 42 is used to control the sun gear 43 to rotate. Under the transmission cooperation of the planet gear 44 and the planet carrier 45, the planet carrier 45 drives the ball screw 38 to rotate. The ball screw 38 drives the two ball nuts 39 to slide at high speed inside the sliding groove 37. The two ball nuts 39 drive the connecting frame 26 to move quickly to both sides. By regulating the rotation speed of the output shaft of the servo motor 42, under the transmission cooperation of the sun gear 43, the planet gear 44 and the planet carrier 45, tensile stress detection operations with different accelerations are performed on both ends of the cable.

[0037] Furthermore, on one side of the inner wall of the state detection frame 22, a second servo linear slide 53 is fixedly arranged, and a reciprocating movement frame 46 is slidably arranged on one side of the second servo linear slide 53. An arc detection frame 47 is slidably arranged on one side of the reciprocating movement frame 46 through a built-in electric slide. An arc limiting groove 48 is arranged on the inner wall of the arc detection frame 47. On one side of the inner wall of the arc limiting groove 48, an arc driving tooth groove 49 is also arranged. A driving block 51 is slidably arranged inside the arc limiting groove 48. On the side of the driving block 51 close to the arc driving tooth groove 49, a driving gear is rotatably arranged through a built-in motor, and the tooth surface of the driving gear is meshed and driven with the tooth surface of the arc driving tooth groove 49. A microwave detection sensor 52 is also fixedly arranged on one side of the driving block 51, and the microwave detection sensor 52 is communicatively connected to the tensile stress detection terminal through a built-in wireless communication module.

[0038] It should be noted that after the tensile stress detection of the cable under different environments and different accelerations is completed, the control state detection frame 22 is connected to cooperate with one side of the detection dynamic frame 17. The two arc detection frames 47 on the reciprocating moving frame 46 are used to wrap the cable. The motor built in the driving block 51 drives the driving gear to rotate. Through the meshing transmission between the driving gear and the internal teeth of the arc driving tooth groove 49, the driving block 51 slides along the track of the arc driving tooth groove 49 inside the arc limiting groove 48, so that the microwave detection sensor 52 rotates reciprocally around the surface of the cable. The microwave detection sensor 52 is used to detect the damage inside the cable without damaging the cable. The detection efficiency is high, and the internal damage can be accurately detected, providing comprehensive data for the cable quality assessment.

[0039] Embodiment 4 Specifically, a detection method of a tensile stress detection device for new energy cable production is disclosed in this embodiment, including the following processes: The two first cable clamping jaws 10 on the two feeding rotary frames 8 are used to clamp and position both ends of the cable to be detected. By controlling the two feeding sliding frames 7 to move to both sides, the cable to be detected is in a horizontal straight state. Then, the driving end of the first control electric push rod 13 controls the second control electric push rod 14 to move forward, and the driving end of the second control electric push rod 14 controls the cleaning mounting block 15 to move downward. The cleaning sponge inside the cleaning mounting block 15 is used to remove oil stains, dust, and impurities on the surface of the cable to be detected; The micro servo motor 11 is used to control the feeding rotary frame 8 to rotate, so that the clamped and positioned cable faces the inside of the detection frame 2. Driven by the driving end of the micro servo electric cylinder 9, the cable is sent into the inside of the detection frame 2. The two second cable clamping jaws 27 are used to transfer and clamp the cable to complete the automatic feeding of the cable; The dynamic driving motor 18 drives the detection dynamic frame 17 to rotate downward, so that the dynamic detection cavity 23 is attached to the environment regulation frame 20. The environment regulation frame 20 is connected to a temperature and humidity control device through a conduit to regulate the environment inside the dynamic detection cavity 23 according to preset requirements. At this time, the second cable clamping jaw 27 inside the dynamic detection cavity 23 is connected to the sliding detection block 25 through a clamping component to clamp the cable, and the tensile stress detection under this environment is carried out. And a pressure sensor is arranged on one side of the convex block 28 to collect data and transmit it to the tensile stress detection terminal; The environmental simulation test is completed. The test dynamic frame 17 rotates to make the speed regulation frame 21 contact with one side of it. The front connecting plate of the connecting block 41 approaches the connecting frame 26 under the drive of the micro electric cylinder. The clamping component of the former is connected to the connecting groove 30 and the clamping groove 31 of the latter. At the same time, the connection between the sliding detection block 25 and the back of the connecting frame 26 is released. The servo motor 42 is started and drives the ball screw 38 to rotate through the sun gear 43, the planet gear 44 and the planet carrier 45, so that the lead screw nut 39 slides at a high speed in the sliding groove 37, and then drives the connecting frame 26 to move quickly to both sides. By adjusting the rotation speed of the servo motor 42, the tensile forces with different accelerations at both ends of the cable are applied to complete the tensile stress test, and the data is synchronously transmitted to the tensile stress test terminal; After the tensile test with different accelerations is completed, the test dynamic frame 17 continues to rotate to make the state detection frame 22 cooperate and connect with one side of it. The second servo linear slide 53 drives the reciprocating moving frame 46 to a suitable position. The two arc detection frames 47 cover the cable. The built-in motor of the driving block 51 drives the driving gear to rotate, which meshes with the arc driving tooth groove 49, so that the driving block 51 slides along the track in the arc limiting groove 48, driving the microwave detection sensor 52 to rotate reciprocally around the cable surface to detect internal damage, and the detection data is transmitted to the tensile stress test terminal for analysis and processing through the wireless communication module; After all the detection processes are completed, each component resets according to the program. The second cable jaw 27 releases the cable, the test dynamic frame 17 rotates back to the initial position, and the feeding sliding frame 7 moves out the detected cable, and the equipment is ready for the next test.

[0040] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile stress detection device for the production of new energy cables, characterized in that Including: A fixed base (1), and rubber vibration isolators (5) and shock damping rods (6) are fixedly arranged around the top of the fixed base (1); A detection frame (2), located directly above the fixed base (1), and its bottom is fixedly connected to the tops of the four rubber vibration isolators (5) and the four shock damping rods (6); A feeding unit (3), located on the front of the detection frame (2), including a feeding sliding frame (7) and a micro servo electric cylinder (9). There is a through port for cable feeding on the front of the detection frame (2). The feeding sliding frame (7) is slidably arranged on both sides inside the through port through an electric slide. A feeding rotating frame (8) is rotatably arranged on one side of the two feeding sliding frames (7) facing each other, and a micro servo motor (11) is fixedly arranged on one side of the two feeding sliding frames (7) facing away from each other; A detection unit (4), located inside the detection frame (2), including a detection dynamic frame (17), an environment regulation frame (20), a speed regulation frame (21) and a state detection frame (22). The detection dynamic frame (17) is rotatably arranged inside the detection frame (2), and a dynamic drive motor (18) for driving the detection dynamic frame (17) to rotate is fixedly arranged on the left side of the detection frame (2). Displacement drive frames (19) are fixedly arranged at the upper, lower and middle parts on both sides of the inner wall of the detection frame (2). The environment regulation frame (20) is slidably arranged between the displacement drive frames (19) at the lower part on both sides of the inner wall of the detection frame (2), the speed regulation frame (21) is slidably arranged between the displacement drive frames (19) at the middle part on both sides of the inner wall of the detection frame (2), and the state detection frame (22) is slidably arranged between the displacement drive frames (19) at the upper part on both sides of the inner wall of the detection frame (2).

2. The tensile stress detection device for the production of new energy cables according to claim 1, characterized in that, A number of micro servo electric cylinders (9) are fixedly arranged inside the two feeding rotating frames (8). The number of micro servo electric cylinders (9) is arranged at equal angles with respect to the central axis of the feeding rotating frame (8). The driving ends of the number of micro servo electric cylinders (9) are fixedly provided with first cable clamping jaws (10).

3. The tensile stress detection device for the production of new energy cables according to claim 1, characterized in that, A cleaning linear slide rail (12) is fixedly arranged above the front of the detection frame (2). A sliding block (16) is slidably arranged on the front of the cleaning linear slide rail (12). A first control electric push rod (13) is fixedly arranged on the front of the sliding block (16). A second control electric push rod (14) is fixedly arranged at the driving end of the first control electric push rod (13). A cleaning mounting block (15) is fixedly arranged at the bottom end of the driving shaft of the second control electric push rod (14). A cleaning sponge is arranged inside the cleaning mounting block (15), and a cut is arranged in the middle of the cleaning sponge.

4. The tensile stress detection device for the production of new energy cables according to claim 2, characterized in that, A plurality of dynamic detection chambers (23) are provided on the outer peripheral surface of the described detection dynamic frame (17). The plurality of dynamic detection chambers (23) are arranged at equal angles with respect to the central axis of the detection dynamic frame (17). On one side of the inner wall of the dynamic detection chamber (23), a first servo linear slide (24) is fixedly provided. On one side of the first servo linear slide (24), two sliding detection blocks (25) are slidably provided. On one side of each of the two sliding detection blocks (25), a connecting frame (26) is movably provided. Inside the connecting frame (26), second cable grippers (27) are symmetrically slid up and down through built-in electric sliders.

5. The tensile stress detection device for the production of new energy cables according to claim 4, characterized in that, On the upper and lower sides of one side of the sliding detection block (25), clamping components are fixedly provided. The clamping components include bumps (28) and second cable grippers (27). On the upper and lower sides of the side of the bump (28) close to the connecting frame (26), bumps (28) are fixedly provided. On both sides inside the two bumps (28), second cable grippers (27) are movably provided through built-in electric push rods. On the upper and lower sides of the front and back of the connecting frame (26), connection grooves (30) matching the bumps (28) are provided. On both sides of the inner wall of the connection groove (30), card slots (31) matching the second cable grippers (27) are provided.

6. The tensile stress detection device for the production of new energy cables according to claim 4, characterized in that, An installation frame (36) is fixedly provided inside the speed regulation frame (21). A sliding groove (37) is provided inside the installation frame (36). A ball screw (38) is rotatably provided inside the sliding groove (37). The surface of the ball screw (38) is in rolling connection with a lead screw nut (39) through balls. One side of the lead screw nut (39) extends outside the sliding groove (37) and is fixedly provided with a connection block (41). A sealing strip (40) is fixedly provided on the front side inside the sliding groove (37). An opening is provided in the middle of the sealing strip (40). A connecting plate is movably provided on the front of the connection block (41) through a built-in micro electric cylinder. The above-mentioned clamping components are also provided on the upper and lower sides of the front of the connecting plate.

7. The tensile stress detection device for the production of new energy cables according to claim 6, characterized in that, A servo motor (42) is fixedly provided on one side inside the speed regulation frame (21). A sun gear (43) is fixedly provided on the output shaft of the servo motor (42). A plurality of planet gears (44) and a planet carrier (45) are also rotatably provided on one side inside the speed regulation frame (21). The tooth surfaces of the plurality of planet gears (44) are respectively meshed and driven with the outer tooth surface of the sun gear (43) and the inner tooth surface of the planet carrier (45). One side of the planet carrier (45) is fixedly connected to one end of the ball screw (38).

8. An anti-tensile stress detection device for the production of new energy cables according to claim 1, characterized in that, On one side of the inner wall of the state detection frame (22), a second servo linear slide (53) is fixedly arranged. On one side of the second servo linear slide (53), a reciprocating moving frame (46) is slidably arranged. On one side of the reciprocating moving frame (46), an arc-shaped detection frame (47) is slidably arranged through a built-in electric slide. An arc-shaped limiting groove (48) is arranged on the inner wall of the arc-shaped detection frame (47). On one side of the inner wall of the arc-shaped limiting groove (48), an arc-shaped driving tooth groove (49) is arranged. A driving block (51) is slidably arranged inside the arc-shaped limiting groove (48). On the side of the driving block (51) close to the arc-shaped driving tooth groove (49), a driving gear is rotatably arranged through a built-in motor. The tooth surface of the driving gear is meshed and driven with the tooth surface of the arc-shaped driving tooth groove (49). On one side of the driving block (51), a microwave detection sensor (52) is fixedly arranged. The microwave detection sensor (52) is communicatively connected with the tensile stress detection terminal through a built-in wireless communication module.

9. The tensile stress detection device for the production of new energy cables according to claim 1, characterized in that, Positioning holes (32) and sealing grooves (33) are arranged on the outer peripheral surface of the detection dynamic frame (17). On the side of the environment regulation frame (20), speed regulation frame (21) and state detection frame (22) close to the detection dynamic frame (17), positioning columns (34) and sealing washers (35) are arranged.

10. The tensile stress detection device for the production of new energy cables according to claim 5, characterized in that, Flexible buffer layers are arranged on the opposite sides of the first cable clamp jaw (10) and the second cable clamp jaw (27). The flexible buffer layer is composed of a composite of memory sponge and high-elastic rubber.

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