A sensor lead continuous tensile strength testing apparatus

Abstract

This invention belongs to the field of sensor lead tensile strength testing technology, specifically a continuous tensile strength testing device for sensor leads. It includes a frame with two sets of drive shafts rotatably mounted inside. Two sets of sprockets are symmetrically mounted on the drive shafts, meshing with two sets of chains. Several sets of feeding racks are arranged around the two sets of chains. A testing mechanism is installed on one side of the middle of the frame. Each feeding rack includes a fixed plate with two sets of chains fixedly connected to its lower end. A movable plate is movably inserted into the fixed plate. A sprocket and chain drive mechanism drives multiple feeding racks in a circular cyclic motion, enabling continuous assembly line operation for feeding, testing, and unloading. Furthermore, during the testing process, preparation for replacing the next set of leads can be carried out simultaneously, eliminating equipment waiting time and significantly improving overall testing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of sensor lead tensile strength testing technology, specifically a sensor lead continuous tensile strength testing device. Background Technology

[0002] In the sensor manufacturing process, the lead wires serve as a critical channel for signal transmission, and their tensile strength directly affects the long-term reliability and service life of the product. To ensure the stable performance of the sensor under complex working conditions, it is necessary to conduct rigorous tensile strength tests on the lead wires to verify their mechanical endurance. This test accurately assesses the fracture limit and deformation characteristics of the lead wires by simulating tensile stress in actual applications, thereby selecting high-quality products that meet high reliability standards and providing a solid guarantee for the overall performance of the sensor.

[0003] Patent CN223870438U discloses a sensor lead wire tensile strength testing device, comprising a mounting platform, a pulling component, a testing component, a bending-resistant component, a mounting component, and an adjusting component. The pulling component works in conjunction with the testing component to apply tension to one end of the lead wire and monitor it in real time. The bending-resistant component can bend the sensor by pressing against the middle before testing, simulating a complex stress condition. The fastening component ensures the lead wire is securely clamped, while the adjusting and mounting components provide flexible position adjustment capabilities. This device breaks through the traditional single tensile testing mode by introducing bending prestress simulation, effectively evaluating the mechanical properties of the lead wire under complex stress conditions, significantly improving the flexibility and engineering practicality of the test, and providing a technical means that is closer to actual application scenarios for sensor reliability verification.

[0004] In the above-described scheme, before conducting the tensile test on the lead wire, both ends of the lead wire must be fixed to the test component and the fixing component respectively; after the test is completed, these two components must be manually operated to release the lead wire before the next set of tests can be performed. This process involves frequent clamping and disassembly operations, which consume a significant amount of time, preventing continuous testing. Given that lead wire testing typically involves multiple samples, this method severely restricts overall testing efficiency, making the tensile testing process particularly slow. Therefore, this invention provides a continuous tensile strength testing device for sensor leads. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A sensor lead continuous tensile strength testing device according to this invention includes a frame, two sets of drive shafts rotatably mounted inside the frame, two sets of sprockets symmetrically mounted on the drive shafts, the two sets of sprockets meshing with two sets of chains, and several sets of feeding racks arranged around the two sets of chains. A testing mechanism is installed on one side of the middle of the frame. The feeding rack includes a fixed plate, two sets of chains fixedly connected to the lower end face of the fixed plate, a movable plate movably inserted into the fixed plate, a magnetic sleeve fixedly mounted on the movable plate, and a set of fixed seats fixedly mounted on one end of the fixed plate. Another set of fixed seats is fixedly installed on one end of the movable plate, and a limiting frame is fixedly connected to the lower end of the movable plate. A fixed clamp is fixedly installed on the fixed seat, and a movable clamp is movably installed on the fixed seat. The movable clamp is directly opposite the fixed clamp. A screw installed in the fixed seat is rotated and screwed into the movable clamp. The testing mechanism includes a mounting frame, which is fixedly connected to the frame. A movable stage is movably installed on the frame. A tensile tester is fixedly installed on the movable stage. A receiving plate is fixedly installed on the output end of the tensile tester to engage the limiting frame. An electric push rod is fixedly installed at the bottom of the frame to drive the movable stage. The sprocket and chain drive mechanism drives multiple sets of feeding racks to perform circular cyclic motion, realizing continuous assembly line operation of feeding, testing and unloading. During the testing process, the material preparation for the next set of leads can be carried out simultaneously, eliminating equipment waiting time and significantly improving overall testing efficiency.

[0007] Preferably, two sets of guide posts are installed inside the fixed base, and two sets of first through holes are symmetrically opened on the movable clamp. The guide posts are slidably connected to the first through holes, and two sets of guide grooves are symmetrically opened at the bottom of the movable table. The guide grooves are slidably connected to the guide rails, and the guide rails are fixedly installed on the mounting frame. When the movable clamp moves, the first through hole on the movable clamp slides along the guide post, which guides the movement of the movable clamp. When the movable table moves, the guide groove on the movable table slides along the guide rail, which guides the movement of the movable table.

[0008] Preferably, the feeding rack further includes two sets of elastic clamps, which are movably mounted on the fixed clamp and the movable clamp bracket. Two sets of springs are provided between the elastic clamp and the movable clamp. Two sets of second through holes are symmetrically opened on the elastic clamp, and the second through holes are slidably connected to the guide post. The feeding rack also includes a locking mechanism, which includes a fixed support, which is fixedly mounted on a fixed plate, a rotating rod rotatably mounted on the fixed support, a first worm gear mounted on the rotating rod, a rectangular rod movably inserted into the rotating rod, a second worm gear mounted on the rectangular rod, and two sets of worm wheels respectively meshing with the first worm gear and the second worm gear. Both ends of the rectangular rod are rotatably connected to support seats, which are fixedly mounted on a set of fixed seats, and the two sets of worm wheels are respectively mounted on the ends of the two sets of screws.

[0009] The combination of locking mechanism, spring clip, and spring simplifies the lead wire replacement process, greatly reduces the repetitive operation rate of lead wire replacement, and thus improves the efficiency of lead wire loading and unloading.

[0010] Preferably, a pushing mechanism is provided on both sides of one end of the frame. The pushing mechanism includes a connecting frame, which is fixedly connected to the frame. A slide rail is fixedly installed on the frame. A pushing block is slidably connected to the slide rail. A cylinder is fixedly installed on the frame to drive the pushing block. A support rod is fixedly connected to the lower end of the spring clamp. A roller is rotatably installed on the lower end of the support rod. An inclined surface for pushing the roller is provided on the pushing block. Limiting blocks for limiting the limiting frame are also provided on both sides of one end of the frame. Workers only need to straighten the lead wire and place it into the spring clamp and the fixing clamp. Then, they can retract the push block. Under the action of the spring rebound force, the spring clamp and the fixing clamp will clamp the straightened lead wire. This reduces the difficulty for workers to load the lead wire while ensuring that the lead wire is in a straight position and fixed on the feeding rack.

[0011] The beneficial effects of this invention are as follows: 1. The sprocket and chain drive mechanism drives multiple sets of feeding racks to perform circular cyclic motion, realizing continuous assembly line operation of feeding, testing and unloading. During the testing process, the material preparation for the next set of leads can be carried out simultaneously, eliminating equipment waiting time and significantly improving the overall testing efficiency.

[0012] 2. Straighten the lead wire with both hands, suspending it directly above the feeding rack. Then, move the lead wire downwards towards the space between the spring clamp and the fixed clamp. When the lead wire contacts the space between the spring clamp and the fixed clamp, the spring clamp is squeezed by the lead wire, causing it to move towards the movable clamp. The spring clamp compresses the two sets of springs until the lead wire moves between the spring clamp and the fixed clamp. Under the action of the spring's rebound force, the taut lead wire is pre-fixed between the spring clamp and the fixed clamp. Then, turn the screw rod to rotate. The screw rod drives the first worm to rotate, and the screw rod drives the second worm to rotate through the rectangular rod. The first and second worms drive the corresponding worm wheels to rotate, and the worm wheels drive the screw to rotate, causing the movable clamp to move towards the spring clamp. The movable clamp pushes the spring clamp to squeeze the lead wire through the spring, and the movable clamp compresses the spring until the movable clamp squeezes the spring clamp. This achieves the above-mentioned fixation of the lead wire on the feeding rack, simplifying the lead wire replacement operation process and greatly reducing the repetitive operation rate of the lead wire replacement step, thereby improving the efficiency of lead wire loading and unloading. Attached Figure Description

[0013] The invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a partial schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a partial schematic diagram of the feeding rack of the present invention.

[0016] Figure 3 This is a schematic diagram of the combination of the fixed base, fixed frame, movable clamp, and screw of the present invention.

[0017] Figure 4 This is a schematic diagram of the combination of the movable plate, the limiting frame, and the testing mechanism of the present invention.

[0018] Figure 5 This is a schematic diagram of the overall feeding rack of the present invention.

[0019] Figure 6 This is a schematic diagram of the combination of the fixed base, fixed frame, movable clamp, screw, elastic clamp, spring, and worm gear of the present invention.

[0020] Figure 7 This is a schematic diagram of the combination of the screw rod and the rectangular rod of the present invention.

[0021] Figure 8 This is a schematic diagram of the combination of the feeding rack and the pushing mechanism of the present invention.

[0022] Figure 9 This is a schematic diagram of the overall structure of the present invention.

[0023] In the diagram: 1. Frame; 101. Limit block; 2. Drive shaft; 3. Sprocket; 4. Chain; 5. Feeding rack; 501. Fixed plate; 502. Movable plate; 503. Magnetic sleeve; 504. Fixed base; 5041. Guide post; 505. Limiting frame; 506. Fixed clamp; 507. Movable clamp; 5071. First through hole; 508. Screw; 509. Spring clamp; 5091. Second through hole; 510. Spring; 511. Locking mechanism; 5111. Fixed support; 5112. Tightening rod; 5113. First worm gear; 5114. Rectangular rod; 51. Support base; 5115. Second worm gear; 5116. Worm wheel; 512. Support rod; 513. Roller; 6. Testing mechanism; 601. Mounting bracket; 602. Movable table; 6021. Guide groove; 6022. Guide rail; 603. Tensile tester; 604. Support plate; 605. Electric push rod; 7. Pushing mechanism; 701. Connecting frame; 702. Pushing block; 7021. Inclined surface; 703. Cylinder; 704. Slide rail. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] Example 1: As Figures 1 to 4As shown in the embodiment of the present invention, a sensor lead continuous tensile strength testing device includes a frame 1. Two sets of drive shafts 2 are rotatably mounted inside the frame 1. Two sets of sprockets 3 are symmetrically mounted on the drive shafts 2. The two sets of sprockets 3 mesh with two sets of chains 4. Several sets of feeding racks 5 are arranged around the two sets of chains 4. A testing mechanism 6 is installed on one side of the middle of the frame 1. The feeding rack 5 includes a fixed plate 501, with two sets of chains 4 fixedly connected to the lower end face of the fixed plate 501, a movable plate 502 movably inserted into the fixed plate 501, a magnetic sleeve 503 fixedly mounted on the movable plate 502, a set of fixed seats 504 fixedly mounted on one end of the fixed plate 501, and another set of fixed seats 504 fixedly mounted on one end of the movable plate 502. The test mechanism 6 includes a limiting frame 505 located below one end of the movable plate 502, a fixed clamp 506 fixedly mounted on a fixed base 504, a movable clamp 507 movably mounted on the fixed base 504, the movable clamp 507 facing the fixed clamp 506, a screw 508 rotatably mounted inside the fixed base 504, and the screw 508 screwing the movable clamp 507. The test mechanism 6 includes a mounting frame 601, which is fixedly connected to the frame 1. A movable stage 602 is movably mounted on the frame 1. A tensile tester 603 is fixedly mounted on the movable stage 602. A receiving plate 604 fixedly mounted on the output end of the tensile tester 603 for engaging the limiting frame 505 is also fixedly mounted on the output end of the tensile tester 603. An electric push rod 605 fixedly mounted at the bottom of the frame 1 for driving the movable stage 602 is also included.

[0026] Specifically, attached Figure 1The middle arrow indicates the loading point. In the initial state, a set of feeding racks 5 are located at the loading point. In the initial state, the magnetic sleeve 503 is attracted to the end of the fixed plate 501, realizing the pre-positioning of the movable plate 502. When it is necessary to perform tensile strength testing on the sensor lead, the lead is placed on the set of feeding racks 5 located at the loading point, so that the end of the lead is between the fixed clamp 506 and the movable clamp 507. Then, by turning the screw 508 with a wrench, the movable clamp 507 moves towards the fixed clamp 506 until the lead is clamped between the movable clamp 507 and the fixed clamp 501. Between 06 and 06, the lead wire is fixed on the feeding rack 5. Then, a set of transmission shafts 2 are driven by a motor to rotate. The transmission shafts 2 drive two sets of sprockets 3 to rotate. The two sets of sprockets 3 drive two sets of chains 4, which, together with several sets of feeding racks 5, make circular motion. The direction of circular motion is from the loading point to the testing mechanism 6, until the feeding rack 5 with the lead wire moves to one side above the testing mechanism 6. At this point, the limiting bracket 505 on the feeding rack 5 engages with the receiving plate 604 on the testing mechanism 6, pausing the circular motion of the feeding racks 5. Then, the electric push rod 605... The drive platform 602, tensile tester 603, and receiving plate 604 move. The receiving plate 604 drives the movable plate 502 to move via the limit frame 505, causing the movable plate 502 to break free from the magnetic force of the magnetic sleeve 503 on the end of the fixed plate 501. At the same time, the movable plate 502 drives the corresponding fixed seat 504, along with the movable clamp 507 and the fixed clamp 506, to move. The movable clamp 507 and the fixed clamp 506 pull the lead wire until it breaks. The tensile tester 603 will display the tensile force count when the lead wire breaks, thereby realizing the tensile strength test of the lead wire. During the testing process, the next set of lead wires can be fixed to a set of feeding racks 5 at the feeding point. After the tensile strength test of the lead wires is completed, the tensile tester 603 is withdrawn, and several sets of feeding racks 5 are driven to make circular motion. The above operation is then repeated. Compared with the existing technology, the use of sprocket 3 and chain 4 transmission mechanism to drive multiple sets of feeding racks 5 to make circular cyclic motion realizes continuous assembly line operation of feeding, testing and unloading. In addition, the replacement of the next set of lead wires can be prepared simultaneously during the testing process, eliminating equipment waiting time and significantly improving the overall testing efficiency.

[0027] Furthermore, two sets of guide posts 5041 are installed inside the fixed base 504, and two sets of first through holes 5071 are symmetrically opened on the movable clamp 507. The guide posts 5041 are slidably connected to the first through holes 5071. Two sets of guide grooves 6021 are symmetrically opened at the bottom of the movable platform 602. The guide grooves 6021 are slidably connected to the guide rails 6022, and the guide rails 6022 are fixedly installed on the mounting bracket 601.

[0028] Specifically, when the movable clamp 507 moves, the first through hole 5071 on the movable clamp 507 slides along the guide post 5041, which guides the movement of the movable clamp 507. When the movable table 602 moves, the guide groove 6021 on the movable table 602 slides along the guide rail 6022, which guides the movement of the movable table 602.

[0029] like Figures 5 to 7 As shown, the feeding rack 5 also includes two sets of elastic clamps 509. The elastic clamps 509 are movably mounted on the brackets of the fixed clamp 506 and the movable clamp 507. Two sets of springs 510 are provided between the elastic clamps 509 and the movable clamp 507. Two sets of second through holes 5091 are symmetrically opened on the elastic clamps 509. The second through holes 5091 are slidably connected to the guide post 5041. The feeding rack 5 also includes a locking mechanism 511. The locking mechanism 511 includes a fixed support 5111. The fixed support 5111 is fixedly mounted on the fixed plate 501 and rotatably mounted on the fixed plate 501. The support 5111 has a screw rod 5112, a first worm 5113 mounted on the screw rod 5112, a rectangular rod 5114 movably connected to the screw rod 5112, a second worm 5115 mounted on the rectangular rod 5114, and two sets of worm gears 5116 respectively meshing with the first worm 5113 and the second worm 5115. Both ends of the rectangular rod 5114 are rotatably connected to support seats 51. The support seats 51 are fixedly mounted on a set of fixed seats 504, and the two sets of worm gears 5116 are respectively mounted on the ends of two sets of screws 508.

[0030] Specifically, when feeding the lead wires, the operator must first tighten the screw 508 to release the clamping and fixing of the previous set of lead wires on the feeding rack 5. Only after the tested lead wires are removed from the feeding rack 5 can the next set of lead wires to be tested be placed in place. Then, the screw 508 is tightened again to fix it. This operation process is cumbersome, and the lead wire replacement steps are repetitive and laborious, resulting in low loading and unloading efficiency, which in turn affects the overall testing cycle. Initially, the distance between the spring clip 509 and the fixed clip 506 is less than the outer diameter of the lead wire. When the lead wire is fixed to the feeding rack 5, the lead wire is straightened by both hands, so that the taut lead wire is suspended directly above the feeding rack 5. Then, the lead wire is moved downwards and towards the space between the spring clip 509 and the fixed clip 506. When the lead wire contacts the space between the spring clip 509 and the fixed clip 506, the spring clip 509 is squeezed by the lead wire, causing the spring clip 509 to move towards the movable clip 507. The spring clip 509 compresses the two sets of springs 510 until the lead wire moves between the spring clip 509 and the fixed clip 506. Under the rebound force of the springs 510, the taut lead wire is pre-fixed between the spring clip 509 and the fixed clip 506. Then, the screw rod 5112 is turned, and the screw rod 5112 drives the first worm gear 51. 13. Rotation: The screw rod 5112 drives the second worm 5115 to rotate via the rectangular rod 5114. The first worm 5113 and the second worm 5115 drive the corresponding worm wheel 5116 to rotate. The worm wheel 5116 drives the screw 508 to rotate, causing the movable clamp 507 to move towards the elastic clamp 509. The movable clamp 507 pushes the elastic clamp 509 to squeeze the lead wire through the spring 510, and the movable clamp 507 compresses the spring 510 until the movable clamp 507 squeezes the elastic clamp 509, thus fixing the lead wire on the feeding rack 5. When it is necessary to release the lead wire, the operation can be reversed. The cooperative setting of the locking mechanism 511, the elastic clamp 509, and the spring 510 simplifies the operation process of changing the lead wire, greatly reduces the repetitive operation rate of the lead wire changing step, and thus improves the efficiency of loading and unloading the lead wire.

[0031] Example 2: Figure 8 and Figure 9 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a pushing mechanism 7 is provided on both sides of one end of the frame 1. The pushing mechanism 7 includes a connecting frame 701, which is fixedly connected to the frame 1. A slide rail 704 is fixedly installed on the frame 1. A pushing block 702 is slidably connected to the slide rail 704. A cylinder 703 is fixedly installed on the frame 1 for driving the pushing block 702. A support rod 512 is fixedly connected to the lower end of the elastic clamp 509. A roller 513 is rotatably installed on the lower end of the support rod 512. An inclined surface 7021 for pushing the roller 513 is provided on the pushing block 702. A limiting block 101 for limiting the limiting frame 505 is also provided on both sides of one end of the frame 1.

[0032] Specifically, during the process of pre-fixing the lead wire to the elastic clamp 509 and the fixed clamp 506, friction is generated between the lead wire and the elastic clamp 509 and the fixed clamp 506. This friction hinders the downward movement of the lead wire and causes it to bend. To ensure that the lead wire placed on the feeding rack 5 remains straight, the operator needs to increase the pulling force to overcome the effect of friction. However, this places high demands on the operator's skills: if the pulling force is too large, the lead wire will undergo plastic deformation; if the pulling force is too small, the lead wire cannot smoothly enter between the elastic clamp 509 and the fixed clamp 506, making the operation difficult for the operator. When the feeding rack 5 is at the feeding point, the limiting block 101 is located inside the limiting frame 505, preventing the limiting frame 505, along with the movable plate 502 and the corresponding fixed seat 504, movable clamp 507, and other structures, from moving laterally. Then, the cylinder 703 pushes the push block 702 upward along the slide rail 704, causing the inclined surface 7021 on the push block 702 to contact the roller 513. As the push block 702 moves upward, the roller 513 will roll along the inclined surface 7021. Guided by the inclined surface 7021, the roller 513, along with the support rod 5... 12. The elastic clamp 509 moves towards the movable clamp 507 and compresses the spring 510, making the distance between the elastic clamp 509 and the fixed clamp 506 greater than the outer diameter of the lead wire. The operator only needs to straighten the lead wire and place it in the elastic clamp 509 and the fixed clamp 506. Then, the push block 702 is withdrawn. Under the rebound force of the spring 510, the elastic clamp 509 and the fixed clamp 506 will clamp the straightened lead wire. While ensuring that the lead wire is in a straight state and fixed in the feeding rack 5, the difficulty of feeding the lead wire by the operator is reduced.

[0033] Working principle: The lead wire is placed on a set of feeding racks 5 located at the loading point, with the end of the lead wire positioned between the fixed clamp 506 and the movable clamp 507. Then, by turning the screw 508 with a wrench, the movable clamp 507 moves towards the fixed clamp 506 until the lead wire is clamped between the movable clamp 507 and the fixed clamp 506, thus fixing the lead wire to the feeding rack 5. Next, a set of transmission shafts 2 are driven by a motor to rotate. The transmission shafts 2 drive two sets of sprockets 3 to rotate, and the two sets of sprockets 3 drive two sets of chains 4, which, together with several sets of feeding racks 5, perform circular motion. The direction of circular motion is from the loading point towards the testing mechanism 6, until the set of feeding racks 5 with the lead wire moves to one side above the testing mechanism 6, and the limiting bracket 505 on the feeding rack 5 engages with the receiving plate 604 on the testing mechanism 6, pausing the circular motion of the several sets of feeding racks 5. The electric push rod 605 drives the movable table 602, tensile tester 603, and receiving plate 604 to move. The receiving plate 604 drives the movable plate 502 to move through the limit frame 505, so that the movable plate 502 breaks free from the magnetic sleeve 503's attraction on the end of the fixed plate 501. At the same time, the movable plate 502 drives the corresponding fixed seat 504, along with the movable clamp 507 and the fixed clamp 506, to move. The movable clamp 507 and the fixed clamp 506 pull the lead wire until it breaks. The tensile tester 603 will display the tensile force count when the lead wire breaks, thereby realizing the tensile strength test of the lead wire. During the test, the next set of lead wires can be fixed to a set of feeding racks 5 at the feeding point. After the tensile strength test of the lead wire is completed, the tensile tester 603 is withdrawn, and several sets of feeding racks 5 continue to be driven to perform circular motion. Then the above operation is repeated in a cycle. When the lead wire contacts the space between the elastic clip 509 and the fixed clip 506, the elastic clip 509 is compressed by the lead wire, causing it to move towards the movable clip 507. The elastic clip 509 also compresses the two sets of springs 510 until the lead wire moves between the elastic clip 509 and the fixed clip 506. Under the rebound force of the springs 510, the taut lead wire is pre-fixed between the elastic clip 509 and the fixed clip 506. Then, the screw rod 5112 is turned, causing the first worm gear 5113 to rotate. The screw rod 5112 then... The rectangular rod 5114 drives the second worm 5115 to rotate. The first worm 5113 and the second worm 5115 drive the corresponding worm wheel 5116 to rotate. The worm wheel 5116 drives the screw 508 to rotate, causing the movable clamp 507 to move towards the elastic clamp 509. The movable clamp 507 pushes the elastic clamp 509 to squeeze the lead wire through the spring 510, and the movable clamp 507 compresses the spring 510 until the movable clamp 507 squeezes the elastic clamp 509, thereby fixing the lead wire on the feeding rack 5. When it is necessary to release the lead wire, the operation can be reversed. When the feeding rack 5 is at the feeding point, the limiting block 101 is located inside the limiting frame 505, preventing the limiting frame 505, along with the movable plate 502 and the corresponding fixed seat 504, movable clamp 507, and other structures, from moving laterally. Then, the cylinder 703 pushes the push block 702 upward along the slide rail 704, causing the inclined surface 7021 on the push block 702 to contact the roller 513. As the push block 702 moves upward, the roller 513 will roll along the inclined surface 7021. Guided by 021, the roller 513, along with the support rod 512 and the spring clip 509, moves towards the movable clip 507. The spring clip 509 compresses the spring 510, making the distance between the spring clip 509 and the fixed clip 506 greater than the outer diameter of the lead wire. The operator only needs to straighten the lead wire and place it in the spring clip 509 and the fixed clip 506. Then, the push block 702 is withdrawn. Under the rebound force of the spring 510, the spring clip 509 and the fixed clip 506 will clamp the straightened lead wire.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor lead continuous tensile strength testing device, comprising a frame (1), characterized in that: Two sets of drive shafts (2) are rotatably installed inside the frame (1). Two sets of sprockets (3) are symmetrically installed on the drive shafts (2). The two sets of sprockets (3) mesh with two sets of chains (4). Several sets of feeding racks (5) are arranged around the two sets of chains (4). A testing mechanism (6) is installed on one side of the middle part of the frame (1). The feeding rack (5) includes a fixing plate (501), and two sets of chains (4) are fixedly connected to the lower end face of the fixing plate (501). A movable plate (502) is movably inserted into the fixed plate (501); A magnetic sleeve (503) is fixedly installed on the movable plate (502); Two sets of fixing seats (504), one set of fixing seats (504) is fixedly installed on one end of the fixing plate (501), and the other set of fixing seats (504) is fixedly installed on one end of the movable plate (502); A limiting frame (505) is fixedly connected to one end of the movable plate (502); A fixing clip (506) is fixedly installed on the fixing base (504); A movable clip (507) is movably mounted on the fixed base (504), and the movable clip (507) is directly opposite the fixed clip (506). Rotate the screw (508) installed in the fixed seat (504), the screw (508) being screwed to the movable clamp (507).

2. The sensor lead continuous tensile strength testing device according to claim 1, characterized in that: The testing mechanism (6) includes a mounting frame (601), which is fixedly connected to the frame (1). An active table (602) is mounted on the frame (1); A tensile testing instrument (603) is fixedly installed on the movable platform (602); A receiving plate (604) is fixedly installed on the output end of the tensile tester (603) to engage the limiting frame (505). An electric push rod (605) is fixedly installed at the bottom of the frame (1) for driving the movable table (602).

3. The sensor lead continuous tensile strength testing device according to claim 2, characterized in that: Two sets of guide posts (5041) are installed inside the fixed base (504). Two sets of first through holes (5071) are symmetrically opened on the movable clamp (507). The guide posts (5041) are slidably connected to the first through holes (5071). Two sets of guide grooves (6021) are symmetrically opened at the bottom of the movable platform (602). The guide grooves (6021) are slidably connected to the guide rails (6022). The guide rails (6022) are fixedly installed on the mounting bracket (601).

4. The sensor lead continuous tensile strength testing device according to claim 3, characterized in that: The feeding rack (5) also includes two sets of elastic clips (509), which are movably mounted on the fixed clip (506) and the movable clip (507) bracket; Two sets of springs (510) are provided between the elastic clip (509) and the movable clip (507).

5. The sensor lead continuous tensile strength testing device according to claim 4, characterized in that: The elastic clip (509) has two sets of second through holes (5091) symmetrically opened, and the second through holes (5091) are slidably connected to the guide post (5041).

6. The sensor lead continuous tensile strength testing device according to claim 5, characterized in that: The feeding rack (5) also includes a locking mechanism (511), which includes a fixed support (5111) and is fixedly installed on the fixed plate (501). Rotate the screw rod (5112) mounted on the fixed support (5111). The first worm gear (5113) is mounted on the screw rod (5112). A rectangular rod (5114) is movably inserted into the screw rod (5112). A second worm gear (5115) is mounted on the rectangular rod (5114). Two sets of worm gears (5116) are provided, which mesh with the first worm (5113) and the second worm (5115) respectively, and are respectively installed at the ends of the two sets of screws (508).

7. The sensor lead continuous tensile strength testing device according to claim 6, characterized in that: Both ends of the rectangular rod (5114) are rotatably connected to support seats (51), and the support seats (51) are fixedly installed on a set of fixed seats (504).

8. The sensor lead continuous tensile strength testing device according to claim 7, characterized in that: The frame (1) is provided with a pushing mechanism (7) on both sides of one end. The pushing mechanism (7) includes a connecting frame (701) which is fixedly connected to the frame (1). Slide rail (704) fixedly installed on the frame (1); The push block (702) is slidably connected to the slide rail (704); A cylinder (703) is fixedly mounted on the frame (1) for driving the push block (702).

9. The sensor lead continuous tensile strength testing device according to claim 8, characterized in that: The lower end of the elastic clip (509) is fixedly connected to a support rod (512), and a roller (513) is rotatably mounted on the lower end of the support rod (512). The push block (702) is provided with an inclined surface (7021) for pushing the roller (513).

10. The sensor lead continuous tensile strength testing device according to claim 9, characterized in that: The frame (1) is also provided with limiting blocks (101) on both sides of one end for limiting the limiting frame (505).

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