Stranded wire contact pin drum type tension detection equipment and method

Abstract

The invention provides stranded wire contact pin drum type tension detection equipment and method, the detection equipment comprises a machine body, a feeding module, a pre-insertion module, a detection module, a collection module and a displacement module, the feeding module is installed on the machine body and is provided with a discharging end, and stranded wire contact pins are discharged from the discharging end one by one; the pre-plugging module is installed on the machine body and is provided with a pre-plugging end for pre-plugging of a stranded wire contact pin so that the stranded wire contact pin is soft. The detection module is installed on the machine body and is provided with a detection end which is used for plugging the stranded wire pin and testing the plugging force. Under the cooperation of the feeding module, the pre-insertion module, the detection module, the collection module and the displacement module, the displacement module is used for clamping a stranded wire contact pin from the feeding module, the stranded wire contact pin is pre-inserted in the pre-insertion module to make a drum shape loose and soft, then the stranded wire contact pin is moved to the detection module for insertion and extraction, the insertion and extraction force is detected, and finally the stranded wire contact pin is detected according to whether the insertion and extraction force is qualified or not. And the stranded wire contact pin is put into a corresponding grid bin of the collecting module and then returns to the feeding module to clamp the next stranded wire contact pin.

Description

Technical Field

[0001] This invention relates to the field of stranded wire pin testing technology, specifically to a device and method for testing the drum-shaped tension of stranded wire pins. Background Technology

[0002] Twisted wire flexible pins (commonly known as twisted pins) are made of two layers of multi-strand copper wire twisted in opposite directions, with the two ends fused together. One end is thickened and raised near the head, and the other end is pressed into the sleeve. They are lightweight, small in size, and have reliable contact, and are widely used in electronic component connectors.

[0003] Because the twisted wire pins after overlaying exhibit inconsistent drum tension, it is necessary to test the drum tension, i.e., the insertion and extraction force, of the overlayed wire pins to determine whether the quality of the twisted wire pins is up to standard. Existing insertion and extraction force testing mechanisms, such as the universal fixture for connector insertion and extraction force testing disclosed in Chinese Patent 202422627681.6, include a mounting base, a placement component, and a pushing component. The quality is determined by the insertion and extraction action and the numerical feedback from the push-pull force tester.

[0004] Although there are currently institutions that test the insertion and extraction force of plugs and connectors, they are not applicable to stranded wire pins. How to perform batch testing of the drum tension of stranded wire pins and classify them is a technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a stranded wire pin drum tension testing device to solve the technical problem of how to perform batch testing and classification of stranded wire pin drum tension in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a stranded wire pin drum-shaped tension testing device, comprising: Organism; The feeding module is installed on the machine body and has a discharge end, which discharges the stranded wire pins one by one from the discharge end; The pre-insertion module is installed on the machine body and has a pre-insertion end for pre-inserting and loosening the stranded wire pins; The detection module is mounted on the machine body and has a detection end for inserting and removing stranded wire pins and testing the insertion and removal force; The collection module has several compartments arranged on the body for classifying and storing stranded wire pins; and The shifting module, which is mounted on the machine body, has movable gripper ends for gripping stranded wire pins from the feeding module and moving them sequentially to the pre-insertion module, detection module, and collection module for pre-insertion and removal, detection and removal, and unloading, respectively.

[0008] In some embodiments, the feeding module includes a circular vibrating plate, a linear vibrating rail, a lifting mechanism, and a top-feeding mechanism. The linear vibrating rail is mounted on the circular vibrating plate, which is mounted on the machine body for vibration and to cause the stranded wire pins to enter the linear vibrating rail in a set orientation. The top-feeding mechanism is mounted on the machine body via a bracket and has a retractable top-feeding end. The lifting mechanism is mounted on the machine body via a bracket and has a receiving end located at the end of the linear vibrating rail that can move vertically. The receiving end has a groove for inserting only one stranded wire pin. The receiving end has a first position state where it moves vertically and aligns the groove with the end of the linear vibrating rail, and a second position state where it is raised to align the groove with the movable end of the top-feeding mechanism.

[0009] In some embodiments, the lifting mechanism includes a lifting mechanism and a hook head. The hook head is connected to the movable end of the lifting mechanism. The groove is formed on the top of the hook head, and the hook head is provided with inclined surfaces adjacent to both sides of the groove to guide the overflowing stranded wire pins to slide down from both sides.

[0010] In some embodiments, the end of the straight vibrating rail is provided with a receiving hopper for receiving stranded wire pins that slide down from the inclined surface, and the circular vibrating plate is provided with a guide hopper, which is arranged below the receiving hopper for receiving stranded wire pins that slide down from the receiving hopper and guiding them back into the circular vibrating plate.

[0011] In some embodiments, a slope is provided on the side of the hook head away from the circular vibrating plate, and the slope is inclined downwards towards the side away from the straight vibrating rail to guide the stranded wire needle to slide down; the bottom surface of the hook head opposite to the groove is provided with a reverse slope.

[0012] In some embodiments, the feeding module further includes a stop bar, which is mounted on the machine body via a bracket and suspended at the end of the groove away from the linear vibrating rail, to prevent the stranded wire pin from falling off that side.

[0013] In some embodiments, the detection module includes a force sensor, an insertion detection base, and an extraction detection base. Both the insertion detection base and the extraction detection base are mounted on the force sensor. The insertion detection base has at least one first detection hole, and the extraction detection base has at least one second detection hole.

[0014] In some embodiments, the pre-insertion module includes a pre-insertion base, which is fixedly mounted on the body by a bracket and has at least one pre-insertion hole.

[0015] In some embodiments, there are two of each of the pre-insertion module, detection module, collection module, and shifting module, and they are symmetrically arranged on the machine body with the discharge end of the feeding module as the central axis.

[0016] Secondly, the present invention also provides a drum-shaped tension detection method, which employs the stranded wire pin drum-shaped tension detection device as described in any of the above claims, and includes the following steps: The feeding module places one of the multiple stranded wire pins at the discharge end; The gripper end of the shifting module clamps the single stranded wire pin placed at the discharge end in the feeding module; The shifting module moves the clamped stranded wire pin to the pre-insertion module and performs at least two insertion and removal actions to soften the bulge of the stranded wire pin; The moving module moves the clamped twisted wire pin to the detection module, first performs the insertion action of the first stroke distance, and tests whether the insertion force value is within the set threshold range, and then performs the insertion and withdrawal action of the second stroke distance, and tests whether the withdrawal force value is within the set threshold range. If either the insertion force or the extraction force is too large, it is placed in the unqualified compartment of the collection module; if either the insertion force or the extraction force is too small, it is placed in the other unqualified compartment of the collection module; if both the insertion force and the extraction force are within the set threshold range, it is placed in the qualified compartment of the collection module.

[0017] Compared with the prior art, the stranded wire pin drum tension testing device provided by the present invention, through the cooperation of a feeding module, a pre-insertion module, a testing module, a collection module and a shifting module, uses the shifting module to clamp the stranded wire pin from the feeding module, pre-insert it in the pre-insertion module to soften the drum shape, and then moves it to the testing module for insertion and extraction, and detects the insertion and extraction force. Finally, according to whether its insertion and extraction force is qualified, it is placed into the corresponding compartment of the collection module, and then returns to the feeding module to clamp the next stranded wire pin, thereby realizing the batch testing and classification of the drum tension of stranded wire pins. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram of the stranded wire pin drum-shaped tension detection device provided in an embodiment of the present invention; Figure 2 This is a top view of the stranded wire pin drum-shaped tension detection device provided in an embodiment of the present invention; Figure 3 This is a partial structural diagram of the feeding module of the stranded wire pin drum-shaped tension testing device provided in an embodiment of the present invention; Figure 4This is a schematic diagram of the hook head structure of the stranded wire pin drum-shaped tension testing device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the detection module structure of the stranded wire pin drum-shaped tension detection device provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the gripper mechanism structure of the stranded wire pin drum-shaped tension detection device provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the gripper mechanism pushing structure of the stranded wire pin drum-shaped tension detection device provided in this embodiment of the invention; Figure 8 This is a flowchart of the drum-shaped tension detection method provided in the embodiments of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Body; 1a. First proximity sensor; 1b. Second proximity sensor; 2. Feeding module; 21. Circular vibratory plate; 22. Straight vibratory rail; 23. Lifting mechanism; 231. Lifting mechanism; 232. Hook head; 23a. Groove; 23b. Inclined surface; 23c. Slope; 23d. Inclined surface; 24. Top material mechanism; 25. Receiving hopper; 26. Stop bar; 3. Pre-inserted module; 31. Pre-inserted base; 31a. Pre-inserted hole; 4. Detection module; 41. Force sensor; 42. Insertion detection base; 42a. First detection hole; 43. Removal detection base; 43a. Second detection hole; 44. Fixing bracket; 5. Collection module; 51. Collection base; 511. Slot; 512. Storage box; 6. Shifting module; 61. Robotic arm; 62. Mounting frame; 63. Gripper mechanism; 631. Clamping assembly; 631a. Fixed gripper; 631b. Moving gripper; 631c. Clamping telescopic mechanism; 631d. Arc groove; 632. Pushing assembly; 632a. Pushing telescopic mechanism; 632b. Ejector pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] To address the technical problem of continuously feeding, testing, and classifying the drum tension of multiple stranded wire pins, this invention provides a stranded wire pin drum tension testing device. Through the cooperation of a feeding module 2, a pre-insertion module 3, a testing module 4, a collection module 5, and a shifting module 6, the shifting module 6 picks up the stranded wire pin from the feeding module 2, pre-inserts it in the pre-insertion module 3 to soften the drum shape, and then moves it to the testing module 4 for insertion and extraction, testing the insertion and extraction force. Finally, based on whether the insertion and extraction force is qualified, it is placed into the corresponding compartment in the collection module 5, and then returns to the feeding module 2 to pick up the next stranded wire pin, thereby achieving batch testing and classification of the drum tension of stranded wire pins.

[0022] It should be noted that the stranded wire pin drum tension testing device described in this invention is used for, but not limited to, stranded wire pins. For ease of explanation, this invention will only use the application of the stranded wire pin drum tension testing device to stranded wire pins as an example. The principle of applying the stranded wire pin drum tension testing device to other similar components with a drum shape that need to be tested is essentially the same as the principle of applying it to stranded wire pins, and will not be elaborated here.

[0023] Please see Figure 1-2 This invention provides a stranded wire pin drum-shaped tension testing device, including a body 1, a feeding module 2, a pre-insertion module 3, a detection module 4, a collection module 5, and a shifting module 6. The feeding module 2 is installed on the body 1 and has a discharge end for discharging stranded wire pins individually from the discharge end. The pre-insertion module 3 is installed on the body 1 and has a pre-insertion end for pre-inserting and loosening the stranded wire pins. The detection module 4 is installed on the body 1 and has a detection end for inserting and removing the stranded wire pins and testing the insertion and removal force. The collection module 5 has several compartments arranged on the body 1 for classifying and storing the stranded wire pins. The shifting module 6 has movable gripper ends for gripping the stranded wire pins from the feeding module 2 and moving them sequentially to the pre-insertion module 3, the detection module 4, and the collection module 5 for pre-insertion and removal, detection and removal, and unloading, respectively.

[0024] Specifically, the feeding module 2 feeds the stranded wire pins into it, and then discharges them sequentially from the discharge end, ensuring that only one stranded wire pin is present at the discharge end. After the single stranded wire pin is clamped by the gripper end of the shifting module 6, it is moved to the pre-insertion module 3 for an insertion and extraction action. This softens the bulge shape of the stranded wire pin, making subsequent testing more accurate. After the pre-insertion action, the shifting module 6 moves the stranded wire pin to the detection module 4, where it undergoes an insertion and extraction action. A force measuring instrument is used to detect the corresponding insertion and extraction forces, providing feedback on whether the insertion and extraction forces are qualified. After the detection module 4 performs the detection, the shifting module 6 moves the stranded wire pin to the collection module 5, where it falls into the corresponding qualified or unqualified compartment. Finally, the shifting module 6 returns to the feeding module 2 to clamp the next stranded wire pin, and the above process is repeated.

[0025] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 In order to output stranded wire pins with a single orientation, the feeding module 2 includes a circular vibrating plate 21, a straight vibrating rail 22, a lifting mechanism 23, and a top-feeding mechanism 24. The straight vibrating rail 22 is mounted on the circular vibrating plate 21, which is mounted on the machine body 1. It is used to vibrate and cause the stranded wire pins to enter the straight vibrating rail 22 with the drum-shaped end facing backward, so that the tail end away from the drum shape is clamped by the clamping end. The straight vibrating rail 22 vibrates and causes the stranded wire pins to move along the track direction.

[0026] The lifting mechanism 23 is mounted on the machine body 1 via a bracket and has a vertically movable receiving end located at the end of the vertical vibrating rail 22. The receiving end has a groove 23a for inserting only one stranded wire pin. The receiving end has a first position where it moves vertically and aligns the groove 23a with the end of the vertical vibrating rail 22. Under the vibration of the vertical vibrating rail 22, the stranded wire pin is fed into the groove 23a. After receiving the material, the receiving end is lifted, causing the single stranded wire pin to detach from the feeding position, awaiting subsequent clamping and inspection.

[0027] Furthermore, the top feeding mechanism 24 is mounted on the machine body 1 via a bracket and has a retractable top feeding end. The receiving end also has a second position state where it is raised to the point where the groove 23a is aligned with the movable end of the top feeding mechanism 24. After the receiving end is raised, it is aligned with the top feeding end. When the top feeding end is extended or retracted, it extends into the groove 23a to push the stranded wire needle. At this time, the clamping end is aligned with the groove 23a, and the top feeding end pushes the stranded wire needle into the clamping position of the clamping end. The clamping end clamps the needle, allowing the shifting module 6 to clamp and move the stranded wire needle.

[0028] It should be noted that both the circular vibrating plate 21 and the straight vibrating rail 22 are existing mature equipment. Based on the geometric characteristics of the thickened protrusion near the head of the stranded wire pin and the matching spiral track, the stranded wire pin is conveyed along the spiral track under vibration drive. The stranded wire pin rises along the spiral track inside the circular vibrating plate 21. The track width and vibration mode gradually straighten most of the stranded wire pins into a roughly flat state with their length direction parallel to the track. Finally, they enter the straight vibrating rail 22 from the spiral track of the circular vibrating plate 21, where they are conveyed along the track by vibration. A machine vision camera and an air jet structure can be installed at the junction of the circular vibrating plate 21 and the straight vibrating rail 22. The air jet structure can be set to spray stranded wire pins that do not conform to the orientation off the straight vibrating rail 22. The circular vibrating plate 21 and the straight vibrating rail 22 are respectively equipped with a circular vibration source and a straight vibration source.

[0029] In one embodiment, please refer to Figure 3 and Figure 4To ensure that only one stranded wire pin is contained within the control groove 23a and to prevent excess stranded wire pins from being stuck in that position, the lifting mechanism 23 includes a lifting mechanism 231 and a hook head 232. The hook head 232 is connected to the movable end of the lifting mechanism 231. The groove 23a is formed on the top of the hook head 232, and the hook head 232 has inclined surfaces 23b adjacent to both sides of the groove 23a to guide overflowing stranded wire pins to slide down from both sides, thereby preventing stranded wire pins from being stuck on both sides of the groove 23a and avoiding interference with the subsequent clamping of a single stranded wire pin.

[0030] Furthermore, in order to return excess stranded wire pins to the circular vibrating plate 21 for reloading, the end of the straight vibrating rail 22 is provided with a receiving hopper 25 for receiving stranded wire pins that slide down from the inclined surface 23b. The circular vibrating plate 21 is provided with a guide hopper 21a, which is arranged below the receiving hopper 25 to receive stranded wire pins that slide down from the receiving hopper 25 and guide them back into the circular vibrating plate 21.

[0031] Furthermore, to prevent the stranded wire needle from getting stuck on the inclined surface 23b that slides down the side away from the guide hopper 21a, a slope 23c is provided on the side of the inclined surface 23b away from the circular vibrating plate 21 on the hook head 232. The slope 23c is inclined downwards towards the side away from the straight vibrating rail 22, so as to guide the stranded wire needle that slides down from the inclined surface 23b along the slope 23c and avoid getting stuck on that side.

[0032] Furthermore, to prevent the stranded wire pin, which is continuously vibrating and conveyed from below, from getting stuck in the gap between the hook head 232 and the end of the straight vibrating rail 22 when the hook head 232 descends, the bottom surface of the hook head 232 opposite to the groove 23a is provided with an inverted inclined surface 23d, which is used to push and guide the stranded wire pin located below and protruding from the end of the straight vibrating rail 22 to fall, thereby avoiding getting stuck in the gap between the hook head 232 and the end of the straight vibrating rail 22, and also avoiding the situation where the stranded wire pin gets stuck and bends.

[0033] Furthermore, in order to block and limit the stranded wire pin and place it in the groove 23a, the feeding module 2 also includes a stop bar 26. The stop bar 26 is mounted on the machine body 1 by a bracket and suspended at the end of the groove 23a away from the straight vibrating rail 22. It is used to prevent the stranded wire pin from falling off on that side and to prevent the stranded wire pin that has entered the groove 23a from emerging from that side.

[0034] In this embodiment, please refer to Figure 3The machine body 1 is equipped with a first proximity sensor 1a and a second proximity sensor 1b mounted on a bracket. The first proximity sensor 1a corresponds to the position of the gripper end, and when the groove 23a is aligned with the position of the feeding mechanism 24, it detects whether the gripper end has reached and aligned with the groove 23a at the other end. The second proximity sensor corresponds to the position of the hook head 232, and detects whether the hook head 232 has descended and aligned with the end of the straight vibrating rail 22. The first proximity sensor 1a detects whether the gripper end has reached the clamping position. If it has, the feeding end of the feeding mechanism 24 is activated, and the stranded wire pin is inserted into the gripper end for clamping. When the gripper end leaves, the hook head 232 is lowered to catch the material at the end of the straight vibrating rail 22. The second proximity sensor 1b detects whether the hook head 232 has reached the end of the straight vibrating rail 22 to catch the material. If it has, the hook head 232 catches the material and rises, and the groove 23a aligns with the feeding end of the feeding mechanism 24. The gripper end moves to align with the other end of the groove 23a for the next clamping action.

[0035] In one embodiment, please refer to Figure 1 and Figure 5 The detection module 4 includes a force sensor 41, an insertion detection base 42, and a withdrawal detection base 43. Both the insertion detection base 42 and the withdrawal detection base 43 are mounted on the detection end of the force sensor 41. The insertion detection base 42 has at least one first detection hole 42a, and the withdrawal detection base 43 has at least one second detection hole 43a. The force sensor 41 is mounted on the machine body 1 via a bracket. The insertion detection base 42 and the withdrawal detection base 43 are both mounted on the detection end of the force sensor 41. Insertion force and insertion / withdrawal force are detected respectively by the inner diameter of the first detection hole 42a being smaller than the inner diameter of the second detection hole 43a. A shifting module clamps the stranded wire pin and moves it sequentially to the insertion detection base 42 and the withdrawal detection base 43, performing insertion and withdrawal actions at these positions respectively.

[0036] Understandably, when the stranded wire pin is inserted into the first detection hole 42a, the drum-shaped part will be squeezed by the hole wall and undergo elastic deformation. The reaction force generated by this deformation, which hinders further insertion, is directly transmitted to the force sensor 41 through the base, and the recorded peak force is the insertion force. When the stranded wire pin is inserted into the second detection hole 43a, the drum-shaped part can be compressed and passed through during the insertion process. After passing through, it relies on its own elasticity, i.e., tension, to maintain close contact with the hole wall. When the mechanical gripper performs the pull-out action, the frictional force between the drum-shaped part and the hole wall and the elastic clamping force together constitute the resistance to pull-out. This force is transmitted to the force sensor 41 through the base, and the recorded peak force is the pull-out force.

[0037] It should be noted that the force sensor can be a force gauge with a strain gauge sensor. When a force is applied, the internal metal elastic body undergoes slight deformation, and the resistance value of the strain gauge attached to it changes accordingly, converting the mechanical quantity into an electrical signal, and displaying the corresponding value on the digital screen.

[0038] In this embodiment, in order to move the twisted wire pins within the three-dimensional space of XYZ, please refer to... Figure 1 This allows it to perform position transfer and insertion / removal actions. The displacement module 6 includes a robotic arm 61, a mounting frame 62, and a gripper mechanism 63. The gripper mechanism 63 is mounted on the mounting frame 62. The movable end of the robotic arm 61 is connected to the mounting frame 62, driving the gripper mechanism 63 to move along the XYZ axes. The gripper 331b opens and closes to hold the stranded wire pin. The robotic arm 61 drives it to move in position and performs linear extension and retraction insertion / removal actions at the detection hole position.

[0039] In one embodiment, please refer to Figure 6 and Figure 7 To stably clamp the stranded wire pin and ensure its disengagement, the gripper mechanism 63 includes a gripping assembly 631 and a pushing assembly 632. Both the pushing assembly 632 and the gripping assembly 631 are mounted on the mounting bracket 62. The gripping assembly 631 includes a fixed gripper 631a, a movable gripper 631b, and a gripping telescopic mechanism 631c. The fixed gripper 631a and the movable gripper 631b are opposite each other. The clamping telescopic mechanism 631c is arranged and fixed on the mounting frame 62. The movable end of the clamping telescopic mechanism 631c is fixedly connected to the movable jaw 631b, which drives the movable jaw 631b to open and close relative to the fixed jaw 631a. The fixed jaw 631a and the movable jaw 631b are arranged vertically. Lifting the movable jaw 631b releases the clamp, and moving the movable jaw 631b downwards clamps the stranded wire pin.

[0040] Furthermore, the fixed jaw 631a and the movable jaw 631b are provided with arc grooves 631d on opposite sides for holding the stranded wire needle and restricting the area between the stranded wire needle and the two arc grooves 631d. Only a slight lifting motion is needed, along with the push component 632, to push the stranded wire needle out of the jaws.

[0041] Specifically, the push assembly 632 includes a push telescopic mechanism 632a and a push pin 632b. The push telescopic mechanism 632a is mounted on the mounting bracket 62. The movable end of the push telescopic mechanism 632a is connected to the push pin 632b, driving the push pin 632b to extend and retract axially along the arc groove 631d. The inner diameter of the push pin 632b is smaller than the inner diameter of the arc groove 631d and smaller than the inner diameter of the stranded wire pin, so that it can be inserted into the arc groove 631d without interfering with the clamping of the stranded wire pin when the arc groove 631d closes.

[0042] Furthermore, the detection module 4 also includes a fixing frame 44, which is mounted on the body 1. The force sensor 41 is mounted on the fixing frame 44, and its detection end is provided with an mounting bracket. The insertion detection base 42 and the extraction detection base 43 are detachably mounted on the mounting bracket side by side by bolts, which facilitates the disassembly and replacement of the insertion detection base 42 and the extraction detection base 43. Moreover, the side-by-side height position makes it easier for the robotic arm to move and position. Between multiple detection positions, only the position information of one coordinate axis needs to be changed.

[0043] Furthermore, there are multiple pre-insertion holes 31a, first detection holes 42a, and second detection holes 43a. These multiple holes can be of different models to detect stranded wire pins of different sizes. Alternatively, the same model can be used, with different detection holes replaced according to the degree of wear.

[0044] In one embodiment, please refer to Figure 1 In order to classify and store the wire clips, the collection module 5 includes a collection base 51, which is installed on the body 1 and has several slots 511. Storage boxes 512 are inserted into the slots 511. Preferably, there are three storage boxes 512 arranged side by side, which are used to store wire clips with excessive insertion and extraction force, qualified insertion and extraction force, and insufficient insertion and extraction force, respectively.

[0045] In one embodiment, please refer to Figure 5 After the upsetting process, residual stress may exist inside the stranded wire material, making its mechanical properties unstable during the first few stress tests. The pre-insertion module 3 includes a pre-insertion base 31, which is fixedly installed on the body 1 by a bracket. It has at least one pre-insertion hole 31a for pre-insertion of the stranded wire pins before the insertion and extraction force test. Pre-insertion can make the drum surface smooth. The squeezing and deformation during the pre-insertion process helps to release this residual stress, making the elastic performance of the material more stable. The internal stranded wire structure reaches a stable and tight state, eliminating the abnormally high resistance during the first insertion.

[0046] In one embodiment, please refer to Figure 1The pre-insertion module 3, detection module 4, collection module 5 and shifting module 6 are all in pairs, and are symmetrically arranged on the machine body 1 with the discharge end of the feeding module 2 as the central axis. The two groups work together and alternately to improve the overall detection efficiency.

[0047] For a drum-type tension testing method, please refer to [link / reference]. Figure 8 The method is applied to a stranded wire pin drum-type tension testing device as described in any one of the following steps: The feeding module 2 places one of the multiple stranded wire pins at the discharge end; The gripper end of the shift module 6 clamps the single stranded wire pin placed at the discharge end in the feeding module 2; The shifting module 6 moves the clamped stranded wire pin to the pre-insertion module 3 and performs at least two insertion and removal actions to soften the bulge of the stranded wire pin; The moving module moves the clamped twisted wire pin to the detection module 4, first performs the insertion action of the first stroke distance, and tests whether the insertion force value is within the set threshold range, and then performs the insertion and withdrawal action of the second stroke distance, and tests whether the withdrawal force value is within the set threshold range. If either the insertion force or the extraction force is too large, it is placed in the unqualified compartment of collection module 5; if either the insertion force or the extraction force is too small, it is placed in another unqualified compartment of collection module 5; if both the insertion force and the extraction force are within the set threshold range, it is placed in the qualified compartment of collection module 5. Repeat the above steps.

[0048] To better understand this invention, the following is combined with... Figures 1 to 7 The technical solution of the present invention is described in detail as follows: The stranded wire needles are poured into the circular vibrating plate 21, and the vibration transports them to the linear vibrating rail 22. They are arranged sequentially on the linear vibrating rail 22 and move towards the groove 23a of the hook head 232, so that a single stranded wire needle is placed in the groove 23a. The hook head 232 is raised and aligned with the top pin of the ejector mechanism 24. The gripper mechanism moves to align with the groove 23a, and the top pin pushes the stranded wire needle out between the two grippers of the gripper mechanism. The gripper mechanism holds the stranded wire needle and moves it. First, it moves to the pre-insertion module 3, where pre-insertion is performed on at least two sides of the pre-insertion hole 31a. Then, it moves to the insertion force detection base 42, where insertion force is detected in the first detection hole 42a. Next, it moves to the pull-out detection base 43 for pull-out force detection. Finally, it moves to the collection module 5, where, based on whether the detection value meets the acceptable range, it is placed in the corresponding storage box 512, and this process is repeated.

[0049] It should be noted that the control unit is also included. It uses a programmable logic controller or industrial computer, which is electrically connected to the above modules. Based on the control logic above, it drives the coordination of each module to achieve the purpose of automatic detection.

[0050] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A wire pin drum tension detection device, characterized by, The utility model relates to a wire insertion needle production line, which comprises: a machine body (1); a feeding module (2) installed on the machine body (1) and having a discharging end for discharging wire insertion needles one by one from the discharging end; a pre-insertion module (3) installed on the machine body (1) and having a pre-insertion end for pre-inserting and pulling out wire insertion needles to make them soft; a detection module (4) installed on the machine body (1) and having a detection end for inserting and pulling out wire insertion needles and testing the insertion and pulling force; a collecting module (5) having a plurality of compartments arranged on the machine body (1) and used for storing wire insertion needles in a classified manner; and a shifting module (6) installed on the machine body (1) and having a movable clamping jaw end for clamping wire insertion needles from the feeding module (2) and sequentially moving to the pre-insertion module (3), the detection module (4) and the collecting module (5) to respectively perform pre-insertion and pulling out, detection of insertion and pulling out and discharging and separation. The feeding module (2) comprises a circular vibrating disc (21), a straight vibrating track (22), a lifting mechanism (23) and a lifting mechanism (24), the straight vibrating track (22) is installed on the circular vibrating disc (21), the circular vibrating disc (21) is installed on the machine body (1) and is used for vibrating and making wire insertion needles enter the straight vibrating track (22) in a set direction, the lifting mechanism (24) is installed on the machine body (1) through a support and has a telescopic lifting end, the lifting mechanism (23) is installed on the machine body (1) through a support and is located at the end of the straight vibrating track (22) and has a material receiving end that can move in a vertical direction, the material receiving end is provided with a groove (23a) for inserting only one wire insertion needle, the material receiving end has a first position state of vertically moving and aligning the groove (23a) with the end of the straight vibrating track (22) and a second position state of lifting to align the groove (23a) with the movable end of the lifting mechanism (24).

2. The wire-insertion drum-type tension detection apparatus according to claim 1, characterized by The lifting mechanism (23) comprises a lifting mechanism (231) and a bent hook head (232), the bent hook head (232) is connected to the movable end of the lifting mechanism (231), the groove (23a) is formed in the top of the bent hook head (232), and the bent hook head (232) is provided with inclined surfaces (23b) adjacent to both sides of the groove (23a) for guiding the wire insertion needles that overflow to slide off from both sides.

3. The wire-insertion drum-type tension detection apparatus according to claim 2, characterized by The end of the straight vibrating track (22) is provided with a material receiving hopper (25) for receiving wire insertion needles that slide off from the inclined surfaces (23b), the circular vibrating disc (21) is provided with a material guiding hopper (21a) arranged below the material receiving hopper (25) for receiving wire insertion needles that slide off from the material receiving hopper (25) and guiding them to slide back into the circular vibrating disc (21).

4. The wire-insertion drum-type tension detecting apparatus according to claim 3, characterized by The side of the inclined surface (23b) on the side of the bent hook head (232) away from the circular vibrating disc (21) is provided with a slope surface (23c) that inclines downward away from the side of the straight vibrating track (22) for guiding the wire insertion needles to slide downward, and the bottom surface of the bent hook head (232) away from the groove (23a) is provided with an inverted inclined surface (23d).

5. The wire-insertion drum-type tension detecting apparatus according to claim 3, characterized by ​ 6. The wire-insertion drum-type tension detecting apparatus according to claim 3, characterized by The feeding module (2) further comprises a stop lever (26) which is installed on the machine body (1) by a support and is suspended at an end of the groove (23a) away from the straight vibration rail (22) to block the falling of the wire insertion pin.

7. The wire-insertion drum-type tension detecting apparatus according to claim 1, characterized by The detection module (4) comprises a force sensor (41), an insertion detection base (42) and a pulling-out detection base (43), wherein the insertion detection base (42) and the pulling-out detection base (43) are both installed on the force sensor (41), the insertion detection base (42) is provided with at least one first detection hole (42a), and the pulling-out detection base (43) is provided with at least one second detection hole (43a).

8. The wire-insertion drum-type tension detecting apparatus according to claim 1, characterized by The pre-insertion module (3) comprises a pre-insertion base (31) which is fixedly installed on the machine body (1) by a support and is provided with at least one pre-insertion hole (31a).

9. The wire-insertion drum-type tension detecting apparatus according to claim 1, characterized by The pre-insertion module (3), the detection module (4), the collection module (5) and the displacement module (6) are both two and are symmetrically arranged on the machine body (1) with the discharge end of the feeding module (2) as the central axis.

10. A drum-type tension testing method characterized by, The wire insertion pin drum tension detection equipment comprises the following steps: The feeding module (2) places one of the wire insertion pins at the discharge end; The clamping jaw end of the displacement module (6) clamps the single wire insertion pin placed at the discharge end of the feeding module (2); The displacement module (6) moves the clamped wire insertion pin to the pre-insertion module (3) to perform at least two insertion and pulling-out actions to make the wire insertion pin drum soft; The movement module moves the clamped wire insertion pin to the detection module (4) to perform a first stroke distance insertion action to test whether the insertion force value is within the set threshold range, and then performs a second stroke distance insertion and pulling-out action to test whether the pulling-out force value is within the set threshold range; If any of the insertion force or the pulling-out force is too large, the wire insertion pin is placed in one unqualified bin of the collection module (5); if any of the insertion force or the pulling-out force is too small, the wire insertion pin is placed in another unqualified bin of the collection module (5); and if both the insertion force and the pulling-out force are within the set threshold range, the wire insertion pin is placed in a qualified bin of the collection module (5). The feeding module (2) further comprises a stop lever (26) which is installed on the machine body (1) by a support and is suspended at an end of the groove (23a) away from the straight vibration rail (22) to block the falling of the wire insertion pin. The detection module (4) comprises a force sensor (41), an insertion detection base (42) and a pulling-out detection base (43), wherein the insertion detection base (42) and the pulling-out detection base (43) are both installed on the force sensor (41), the insertion detection base (42) is provided with at least one first detection hole (42a), and the pulling-out detection base (43) is provided with at least one second detection hole (43a). The pre-insertion module (3) comprises a pre-insertion base (31) which is fixedly installed on the machine body (1) by a support and is provided with at least one pre-insertion hole (31a). The pre-insertion module (3), the detection module (4), the collection module (5) and the displacement module (6) are both two and are symmetrically arranged on the machine body (1) with the discharge end of the feeding module (2) as the central axis. The wire insertion pin drum tension detection equipment comprises the following steps: The feeding module (2) places one of the wire insertion pins at the discharge end; The clamping jaw end of the displacement module (6) clamps the single wire insertion pin placed at the discharge end of the feeding module (2); The displacement module (6) moves the clamped wire insertion pin to the pre-insertion module (3) to perform at least two insertion and pulling-out actions to make the wire insertion pin drum soft; The movement module moves the clamped wire insertion pin to the detection module (4) to perform a first stroke distance insertion action to test whether the insertion force value is within the set threshold range, and then performs a second stroke distance insertion and pulling-out action to test whether the pulling-out force value is within the set threshold range; If any of the insertion force or the pulling-out force is too large, the wire insertion pin is placed in one unqualified bin of the collection module (5); if any of the insertion force or the pulling-out force is too small, the wire insertion pin is placed in another unqualified bin of the collection module (5); and if both the insertion force and the pulling-out force are within the set threshold range, the wire insertion pin is placed in a qualified bin of the collection module (5).

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