Lead feeding unit

Abstract

The utility model relates to the technical field of lead equipment, in particular to a lead feeding unit which comprises a conveying mechanism and a feeding mechanism. The conveying mechanism is located in a grabbing area of the feeding mechanism and used for arranging the to-be-processed leads in order and separating the to-be-processed leads independently, and the to-be-processed leads are continuously conveyed to the grabbing area of the feeding mechanism in a circulating rolling mode. The feeding mechanism is used for grabbing the independently-separated to-be-processed leads and placing the to-be-processed leads to subsequent procedures. According to the utility model, the problems of low efficiency, insufficient precision and poor adaptability in the conveying and feeding process of leads with different lengths and widths can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying mechanisms, in particular to a lead feeding unit. Background Art

[0002] In the fields of highly automated electronic manufacturing, semiconductor packaging, and precision instrument assembly, leads, as key components connecting circuits and components, bear the important task of connecting the internal circuits of chips to external leads. To meet diverse product design and performance requirements, their size specifications are diverse, including different lengths and widths. However, this characteristic poses significant technical challenges to the processes of lead conveying, clamping, and feeding during production. Traditional lead conveying and clamping feeding methods mainly rely on manual or semi-automatic equipment, and these methods have the following limitations:

[0003] (1) Low efficiency: Manual operation not only consumes time and effort but also is difficult to meet the requirements of efficient and continuous production.

[0004] (2) Insufficient accuracy: During the clamping and conveying processes, it is difficult for manual operation to ensure the precise alignment and stable clamping of leads, which easily leads to product defects.

[0005] (3) Poor adaptability: In the face of leads with different lengths and widths, traditional equipment often needs to be frequently adjusted or the fixtures replaced, affecting production efficiency and flexibility. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a lead feeding unit that can solve the problems of low efficiency, insufficient accuracy, and poor adaptability of leads with different lengths and widths during the conveying and feeding processes.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A lead feeding unit includes a conveying mechanism and a feeding mechanism;

[0009] The conveying mechanism is located in the grasping area of the feeding mechanism;

[0010] The conveying mechanism is provided with a plurality of circulating and rolling conveying plates, and at least one elastic clip is installed on the plate surface of the conveying plate. The elastic clip is used for clamping the lead to be processed; the conveying mechanism is used to orderly arrange and separately separate the leads to be processed, and continuously convey the leads to be processed to the grasping area of the feeding mechanism in a circulating and rolling manner;

[0011] The feeding mechanism includes a feeding base, a manipulator, and a feeding clamping structure;

[0012] The bottom of the manipulator is rotatably installed at the upper end of the feeding base, and the feeding clamping structure is rotatably installed at the end of the manipulator; the feeding clamping structure is used to grab the separately separated lead to be processed and place it in the subsequent process.

[0013] Preferably, the conveying mechanism includes two conveying racks arranged side by side. At both ends of the facing surfaces of the two conveying racks, a conveying driving sprocket and a conveying driven sprocket are respectively rotatably installed. An endless chain is sleeved on and meshed with the conveying driving sprocket and the conveying driven sprocket;

[0014] One end of one of the conveying racks is installed with a conveying motor, and the motor shaft of the conveying motor penetrates the conveying rack and is connected to the conveying driving sprocket;

[0015] The endless chain is provided with conveying plates at intervals, and at least one of the elastic clip fasteners is installed on the plate surface of the conveying plate. The elastic clip fastener is used to clamp the lead to be processed.

[0016] Preferably, the feeding clamping structure includes a feeding connection plate, a feeding adjusting plate and at least two groups of feeding clamping components;

[0017] One plate surface of the feeding connection plate is rotatably connected to the end of the manipulator, and the other plate surface of the feeding connection plate is fixedly connected to one plate surface of the feeding adjusting plate;

[0018] The feeding adjusting plate is provided with a feeding adjusting strip hole along its length direction. Two groups of the feeding clamping components are detachably installed in the feeding adjusting strip hole on the feeding adjusting plate. The distance between the two groups of the feeding clamping components in the length direction of the feeding adjusting plate forms a feeding clamping length space for clamping the lead.

[0019] The feeding clamping component includes a feeding clamping motor and a pair of feeding clamping jigs. One end of the pair of feeding clamping jigs is hinged to the motor shaft of the feeding clamping motor, and a feeding clamping width space for clamping the outer surface of the lead is formed between the other ends of the pair of feeding clamping jigs. The feeding clamping motor is used to control the size of the feeding clamping width space.

[0020] Preferably, the feeding clamping jig has a first feeding hinge point and a second feeding hinge point. The feeding clamping jig is hinged to the motor shaft of the feeding clamping motor through the first feeding hinge point, and the feeding clamping jig is hinged to the feeding clamping motor through the second feeding hinge point. A feeding semi-circular arc groove is opened at one end of the feeding clamping jig far from the feeding clamping motor;

[0021] When the feeding clamping motor drives a pair of the feeding clamping fixtures to approach each other, the two feeding semicircular arc grooves close together to form a feeding clamping width space for clamping the outer surface of the lead wire.

[0022] Preferably, the number of the feeding clamping assemblies is three groups, one of which is fixedly mounted on one end of the feeding adjustment plate, and the other two of which are detachably mounted on the feeding adjustment bar holes on the feeding adjustment plate.

[0023] Preferably, the ring chain comprises a plurality of outer connecting members and inner connecting members connected at intervals;

[0024] The outer connecting member includes a pair of outer plates, a pin shaft and a sleeve, and the inner connecting member includes a pair of inner plates; the pair of inner plates are sandwiched between two adjacent pairs of outer plates, the two ends of the inner plates are respectively fixedly connected to one end of the adjacent outer plates through the pin shaft, and the pin shaft is installed between the opposite surfaces of the pair of inner plates, and the sleeve is sleeved and rotatably installed on the pin shaft;

[0025] The outer plates arranged opposite to each other on the two ring chains are both provided with conveying connection parts extending towards each other, and the conveying connection parts are arranged perpendicular to the outer plates. A first conveying connection hole is opened on the conveying connection parts, and second conveying connection holes are opened at both ends of the conveying plates. The first conveying connection hole and the second conveying connection hole are aligned for the conveying fixing parts to pass through and be fixedly connected.

[0026] Preferably, the elastic clip comprises a clip fixing body and a pair of elastic clip arms, one end of the pair of elastic clip arms is symmetrically arranged on both sides of the clip fixing body and connected to the clip fixing body as a whole, and an elastic clamping opening is formed between the other ends of the pair of elastic clip arms;

[0027] A clip fixing through hole is provided in the middle of the clip fixing body, and the clip fixing through hole is aligned with the second conveying connection hole for the conveying fixing piece to pass through and be fixedly connected.

[0028] Preferably, the pair of elastic clamp arms are arranged in an arc shape, and the vertical cross-section of the elastic clamp is U-shaped.

[0029] Preferably, a pair of the elastic clamp arms are provided with guide portions extending toward both sides from one end away from the clamp fixing body, and the guide portions and the elastic clamp arms are in an arc transition.

[0030] Preferably, the elastic clamp arm and the guide portion are covered with a rubber protective sleeve.

[0031] One of the above technical solutions has the following beneficial effects: By utilizing the continuity and stability of the ring chain drive and combining the flexible clamping ability of the elastic clip, the mutual entanglement and stacking of the leads are effectively avoided, and at the same time, the automatic, efficient and orderly conveyance of the leads can be achieved. Brief Description of the Drawings

[0032] Figure 1 is a schematic structural view of a lead loading unit of the present utility model;

[0033] Figure 2 is a schematic structural view of a conveying mechanism in a lead loading unit of the present utility model;

[0034] Figure 3 is Figure 2 a partial enlarged view at A in

[0035] Figure 4 is Figure 2 a partial enlarged view at B in

[0036] Figure 5 is an assembly schematic view of a ring chain, a conveying plate and an elastic clip in a lead loading unit of the present utility model;

[0037] Figure 6 is a schematic structural view of an elastic clip in a lead loading unit of the present utility model;

[0038] Figure 7 is a schematic structural view of a loading mechanism in a lead loading unit of the present utility model;

[0039] Figure 8 is Figure 7 a partial enlarged view at C in

[0040] In the drawings: conveying mechanism, conveying machine frame 11, conveying driving sprocket 12, conveying driven sprocket 13, ring chain 14, outer connecting member 141, outer flat plate 1411, pin shaft 1412, sleeve 1413, inner connecting member 142, inner flat plate 1421, conveying connecting portion 143, first conveying connecting hole 1430, conveying motor 15, conveying plate 16, second conveying connecting hole 160, elastic clip 17, clip fixing body 171, clip fixing through hole 1710, elastic clip arm 172, guiding portion 173;

[0041] loading mechanism 2, loading base 21, manipulator 22, loading clamping structure 23, loading connecting plate 221, loading adjusting plate 222, loading adjusting elongated hole 2220, loading clamping assembly 223, loading clamping motor 2231, loading clamping fixture 2232, loading semi-circular groove 2233. Detailed Description of the Embodiment

[0042] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] As Figures 1-8 shown, a lead feeding unit includes a conveying mechanism 1 and a feeding mechanism 2;

[0047] The conveying mechanism 1 is located in the grasping area of the feeding mechanism 2;

[0048] The conveying mechanism 1 is provided with a plurality of circulating and rolling conveying plates 16, and at least one elastic clip 17 is installed on the plate surface of the conveying plate 16. The elastic clip 17 is used for clamping the lead to be processed; the conveying mechanism 1 is used to orderly arrange and separately separate the lead to be processed, and continuously convey the lead to be processed to the grasping area of the feeding mechanism 2 in a circulating and rolling manner;

[0049] The feeding mechanism 2 includes a feeding base 21, a manipulator 22, and a feeding clamping structure 23;

[0050] The bottom of the manipulator 22 is rotatably installed at the upper end of the feeding base 21, and the feeding clamping structure 23 is rotatably installed at the end of the manipulator 22; the feeding clamping structure 23 is used to grab the separately separated lead to be processed and place it in the subsequent process.

[0051] In summary, the present utility model adopts the only manual intervention method. The conveying mechanism 1 is used to orderly arrange and separately separate the lead to be processed that is randomly stacked, and through the way of circular rolling, continuously and stably convey the lead to the grasping area of the feeding mechanism 2. This process effectively avoids the mutual entanglement and stacking of the leads, providing good preconditions for subsequent processing. Then, the feeding mechanism 2 can automatically identify and accurately grab the separately separated lead to be processed on the conveying mechanism 1, and then smoothly place it on the subsequent process. This process realizes the transformation of leads with different lengths and widths from disorder to order, from scattered to precise positioning. Therefore, it can solve the problems of low efficiency, insufficient accuracy and poor adaptability of leads with different lengths and widths in the processes of conveying and feeding.

[0052] For further description, the conveying mechanism 1 includes two conveying racks 11 arranged side by side. At both ends of the opposite surfaces of the two conveying racks 11, a conveying driving sprocket 12 and a conveying driven sprocket 13 are respectively rotatably installed. An endless chain 14 is sleeved and meshed on the conveying driving sprocket 12 and the conveying driven sprocket 13;

[0053] One end of one of the conveying racks 11 is installed with a conveying motor 15, and the motor shaft of the conveying motor 15 passes through the conveying rack 11 and is connected to the conveying driving sprocket 12;

[0054] The conveying plates 16 are installed at intervals on the endless chain 14, and at least one elastic clip 17 is installed on the plate surface of the conveying plate 16. The elastic clip 17 is used to clamp the lead to be processed.

[0055] In an optional embodiment, the number of the elastic clips (17) is two, and the two elastic clips (17) are respectively detachably installed at both ends of the conveying plate (16).

[0056] Such as Figures 2-6As shown, specifically, after the conveying motor 15 is started, the motor shaft of the conveying motor 15 drives the conveying driving sprocket 12 to rotate, thereby driving the endless chain 14 to move cyclically along the outer circumferential surfaces of the conveying driving sprocket 12 and the conveying driven sprocket 13. The conveying plate 16 on the endless chain 14 moves accordingly. An operator clamps the lead to be processed in the elastic clip 17 on the conveying plate 16, so that the lead to be processed is also stably conveyed. Therefore, the conveying mechanism 1 makes full use of the continuity and stability of the endless chain 14 transmission, combines the flexible clamping ability of the elastic clip 17, effectively avoids the mutual entanglement and stacking of leads, and at the same time realizes the automatic, efficient and orderly conveying of leads.

[0057] For further illustration, the loading and clamping structure 23 includes a loading connection plate 221, a loading adjustment plate 222 and at least two groups of loading and clamping components 223;

[0058] One plate surface of the loading connection plate 221 is rotatably connected to the end of the manipulator 22, and the other plate surface of the loading connection plate 221 is fixedly connected to one plate surface of the loading adjustment plate 222;

[0059] The loading adjustment plate 222 is provided with a loading adjustment slot 2220 along its length direction. Two groups of the loading and clamping components 223 are detachably installed in the loading adjustment slot 2220 on the loading adjustment plate 222. The distance between the two groups of the loading and clamping components 223 in the length direction of the loading adjustment plate 222 forms a loading and clamping length space for clamping the lead.

[0060] The loading and clamping component 223 includes a loading and clamping motor 2231 and a pair of loading and clamping fixtures 2232. One end of the pair of loading and clamping fixtures 2232 is hinged to the motor shaft of the loading and clamping motor 2231. A loading and clamping width space for clamping the outer surface of the lead is formed between the other ends of the pair of loading and clamping fixtures 2232. The loading and clamping motor 2231 is used to control the size of the loading and clamping width space.

[0061] As Figures 7-8As shown, specifically, the feeding mechanism 2 is composed of a stable feeding base 21, a flexibly rotating manipulator 22, and a precisely adjusted feeding clamping structure 23. The bottom of the manipulator 22 is installed on the top of the feeding base 21 through a rotating device, and its end is flexibly connected to the feeding clamping structure 23 to ensure the flexibility of multi-dimensional operation. Furthermore, one end of the feeding connection plate 221 in the feeding clamping structure 23 is rotatably connected to the end of the manipulator 22, and the other end is firmly fixed to the feeding adjustment plate 222. The feeding adjustment plate 222 is innovatively designed with a feeding adjustment bar hole 2220, allowing the feeding clamping assembly 223 to flexibly adjust its position in the length direction to adjust the feeding clamping length space of the clamping lead to adapt to the clamping requirements of leads of different sizes. The feeding clamping assembly 223 in each group of the feeding clamping structure 23 independently includes a feeding clamping motor 2231 and a pair of precision feeding clamping fixtures 2232. The feeding clamping motor 2231 drives a pair of feeding clamping fixtures 2232 to open and close through its motor shaft, so as to control the size of the feeding clamping width space, so that the feeding mechanism 2 can achieve efficient and accurate clamping of leads of different lengths and widths.

[0062] Further explanation, the feeding clamping fixture 2232 has a first feeding hinge point and a second feeding hinge point, the feeding clamping fixture 2232 is hinged to the motor shaft of the feeding clamping motor 2231 through the first feeding hinge point, the feeding clamping fixture 2232 is hinged to the feeding clamping motor 2231 through the second feeding hinge point, and the feeding clamping fixture 2232 is provided with a feeding semicircular arc groove 2233 at one end away from the feeding clamping motor 2231;

[0063] When the feeding clamping motor 2231 drives a pair of the feeding clamping fixtures 2232 to approach each other, the two feeding semicircular arc grooves 2233 are closed to form a feeding clamping width space for clamping the outer surface of the lead wire.

[0064] Specifically, Figure 8 As shown, the feeding clamping motor 2231 drives the feeding clamping fixture 2232 to rotate around the first feeding hinge point through its motor shaft, and uses the second feeding hinge point to keep the overall stability of the feeding clamping fixture 2232. As the feeding clamping fixture 2232 gradually closes, the feeding semicircular arc grooves 2233 at both ends fit closely, forming a uniform clamping force on the outer surface of the lead wire, ensuring stable and damage-free clamping.

[0065] To further illustrate, the number of the feeding clamping components 223 is three groups, one of which is fixedly mounted on one end of the feeding adjustment plate 222, and the other two are detachably mounted on the feeding adjustment bar holes 2220 on the feeding adjustment plate 222. Specifically, Figure 8As shown, the fixedly installed loading clamping assembly 223 serves as a reference point to ensure the stability of the clamping process. The other two adjustable loading clamping assemblies 223 are precisely adjusted through the loading adjustment strip holes 2220 according to the actual length and requirements of the leads, achieving a wider clamping range and higher operation efficiency.

[0066] For further illustration, the annular chain 14 includes a plurality of outer connectors 141 and inner connectors 142 connected at intervals;

[0067] The outer connector 141 includes a pair of outer flat plates 1411, a pin shaft 1412, and a sleeve 1413. The inner connector 142 includes a pair of inner flat plates 1421. A pair of the inner flat plates 1421 are clamped between adjacent pairs of the outer flat plates 1411. The two ends of the inner flat plates 1421 are respectively fixedly connected to one end of the adjacent outer flat plates 1411 through the pin shaft 1412. The pin shaft 1412 is installed between the opposite faces of the pair of inner flat plates 1421, and the sleeve 1413 is sleeved and rotatably installed on the pin shaft 1412;

[0068] The outer flat plates 1411 disposed oppositely on the two annular chains 14 are both provided with conveying connection parts 143 extending towards each other. The conveying connection parts 143 are perpendicular to the outer flat plates 1411. A first conveying connection hole 1430 is formed in the conveying connection part 143. Second conveying connection holes 160 are formed at both ends of the conveying plate 16. The first conveying connection hole 1430 and the second conveying connection holes 160 are aligned for a conveying fixing member to pass through and be fixedly connected.

[0069] Specifically, as Figure 5 shown, the annular chain 14 moves cyclically under the drive of the conveying driving sprocket 12 and the conveying driven sprocket 13. The conveying connection part 143 on the outer flat plate 1411 serves as a connection point to fix the conveying plate 16 on the annular chain 14 and move together with the annular chain 14. The design of the pin shaft 1412 and the sleeve 1413 allows the annular chain 14 to have a certain flexibility during rotation, reducing friction and wear, and improving the stability and service life of the entire conveying mechanism 1.

[0070] For further illustration, the elastic clip 17 includes a clip fixing body 171 and a pair of elastic clip arms 172. One end of the pair of elastic clip arms 172 is symmetrically arranged on both sides of the clip fixing body 171 and is integrally connected to the clip fixing body 171. An elastic clamping opening is formed between the other ends of the pair of elastic clip arms 172;

[0071] A clip fixing through hole 1710 is formed in the middle of the clip fixing body 171. The clip fixing through hole 1710 and the second conveying connection hole 160 are aligned for a conveying fixing member to pass through and be fixedly connected.

[0072] Specifically, as Figure 6 shown, the lead to be processed can be clamped between a pair of elastic clamping arms 172 through an elastic clamping opening, and the elastic deformation of the elastic clamping arms 172 is utilized to achieve the clamping and release of the lead. During clamping, the elastic clamping arms 172 are forced to contract inward, the clamping opening becomes smaller, and the lead is firmly clamped; during release, the clamping arms return to their original positions, the clamping opening opens, and the lead can be freely detached. Therefore, the design of the elastic clamping arms 172 makes the clamping process more flexible and easy to operate, and can adapt to leads of different diameters and shapes at the same time.

[0073] For further illustration, a pair of the elastic clamping arms 172 are arranged in an arc shape, and the vertical cross-sectional shape of the elastic clamping buckle 17 is U-shaped. Specifically, as Figure 6 shown, the elastic clamping arms 172 with an arc design can better fit the surface of the lead to be processed, increase the stability and firmness of clamping, and reduce the damage to the lead to be processed at the same time.

[0074] For further illustration, at one end of a pair of the elastic clamping arms 172 away from the clamping buckle fixing body 171, guiding portions 173 are arranged to extend towards both sides, and the guiding portions 173 and the elastic clamping arms 172 are in an arc transition. Specifically, as Figure 6 shown, the design of the guiding portions 173 helps the lead to be processed to smoothly enter the elastic clamping opening, reduces the clamping failure caused by misoperation or lead deviation, and improves the accuracy and efficiency of clamping.

[0075] For further illustration, rubber protection sleeves are sleeved on the elastic clamping arms 172 and the guiding portions 173. Specifically, the rubber protection sleeves are not shown in the drawings. They can effectively protect the surface of the lead to be processed from being scratched or worn, and increase the friction coefficient during the clamping process, making the clamping more stable and reliable. In addition, the elasticity of the rubber can also buffer the impact force during the clamping process to a certain extent, further protecting the integrity of the lead to be processed.

[0076] The technical principle of the present utility model has been described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present utility model and cannot be interpreted in any way as a limitation on the protection scope of the present utility model. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present utility model without creative labor, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A lead feeding unit, characterized in that, It includes a conveying mechanism (1) and a feeding mechanism (2); The conveying mechanism (1) is located in the grasping area of the feeding mechanism (2); The conveying mechanism (1) is provided with a plurality of circulating and rolling conveying plates (16), at least one elastic clip (17) is installed on the plate surface of the conveying plate (16), and the elastic clip (17) is used for clamping the lead to be processed; the conveying mechanism (1) is used for arranging the leads to be processed in an orderly manner and separating them individually, and continuously conveying the leads to be processed to the grasping area of the feeding mechanism (2) in a circulating and rolling manner; The feeding mechanism (2) includes a feeding base (21), a manipulator (22) and a feeding clamping structure (23); The bottom of the manipulator (22) is rotatably installed at the upper end of the feeding base (21), and the feeding clamping structure (23) is rotatably installed at the end of the manipulator (22); the feeding clamping structure (23) is used for grasping the individually separated leads to be processed and placing them into subsequent processes.

2. The lead feeding unit according to claim 1, characterized in that, The conveying mechanism (1) includes two conveying racks (11) arranged side by side, a conveying driving sprocket (12) and a conveying driven sprocket (13) are respectively rotatably installed at both ends of the opposite surfaces of the two conveying racks (11), and an endless chain (14) is sleeved and meshed on the conveying driving sprocket (12) and the conveying driven sprocket (13); A conveying motor (15) is installed at one end of one of the conveying racks (11), and the motor shaft of the conveying motor (15) passes through the conveying rack (11) and is connected with the conveying driving sprocket (12); The conveying plates (16) are installed at intervals on the endless chain (14), at least one elastic clip (17) is installed on the plate surface of the conveying plate (16), and the elastic clip (17) is used for clamping the leads to be processed.

3. The lead feeding unit according to claim 1, wherein, The feeding clamping structure (23) includes a feeding connecting plate (221), a feeding adjusting plate (222) and at least two groups of feeding clamping components (223); One plate surface of the feeding connecting plate (221) is rotatably connected to the end of the manipulator (22), and the other plate surface of the feeding connecting plate (221) is fixedly connected to one plate surface of the feeding adjusting plate (222); A feeding adjusting elongated hole (2220) is formed along the length direction of the feeding adjusting plate (222), and the two groups of feeding clamping components (223) are detachably installed in the feeding adjusting elongated hole (2220) on the feeding adjusting plate (222), and the distance between the two groups of feeding clamping components (223) in the length direction of the feeding adjusting plate (222) forms a feeding clamping length space for clamping the leads. The feeding clamping assembly (223) comprises a feeding clamping motor (2231) and a pair of feeding clamping fixtures (2232), one end of the pair of feeding clamping fixtures (2232) is hinged on the motor shaft of the feeding clamping motor (2231), and a feeding clamping width space for clamping the outer surface of the lead is formed between the other ends of the pair of feeding clamping fixtures (2232), and the feeding clamping motor (2231) is used to control the size of the feeding clamping width space.

4. The lead feeding unit according to claim 3, characterized in that, The feeding clamping fixture (2232) has a first feeding hinge point and a second feeding hinge point, the feeding clamping fixture (2232) is hinged to the motor shaft of the feeding clamping motor (2231) via the first feeding hinge point, the feeding clamping fixture (2232) is hinged to the feeding clamping motor (2231) via the second feeding hinge point, and a feeding semicircular arc groove (2233) is provided at one end of the feeding clamping fixture (2232) away from the feeding clamping motor (2231); When the feeding clamping motor (2231) drives a pair of the feeding clamping fixtures (2232) to approach each other, the two feeding semicircular arc grooves (2233) close together to form a feeding clamping width space for clamping the outer surface of the lead wire.

5. The lead feeding unit according to claim 4, wherein The number of the feeding clamping components (223) is three groups, one of which is fixedly mounted on one end of the feeding adjustment plate (222), and the other two of the feeding clamping components (223) are detachably mounted on the feeding adjustment strip holes (2220) on the feeding adjustment plate (222).

6. The lead feeding unit according to claim 2, characterized in that, The ring chain (14) comprises a plurality of outer connecting pieces (141) and inner connecting pieces (142) connected at intervals; The outer connecting member (141) comprises a pair of outer plates (1411), a pin shaft (1412) and a sleeve (1413); the inner connecting member (142) comprises a pair of inner plates (1421); the pair of inner plates (1421) are sandwiched between two adjacent pairs of outer plates (1411); the two ends of the inner plates (1421) are respectively fixedly connected to one end of the adjacent outer plates (1411) through the pin shaft (1412); the pin shaft (1412) is installed between opposite surfaces of the pair of inner plates (1421); the sleeve (1413) is sleeved and rotatably installed on the pin shaft (1412); The outer plates (1411) arranged opposite to each other on the two ring chains (14) are both provided with conveying connection parts (143) extending towards each other, and the conveying connection parts (143) are arranged perpendicular to the outer plates (1411). A first conveying connection hole (1430) is opened on the conveying connection part (143), and second conveying connection holes (160) are opened at both ends of the conveying plate (16). The first conveying connection hole (1430) and the second conveying connection hole (160) are aligned so as to allow a conveying fixing part to pass through and be fixedly connected.

7. The lead feeding unit according to claim 6, characterized in that, The elastic clip (17) includes a clip fixing body (171) and a pair of elastic clip arms (172). One end of the pair of elastic clip arms (172) is symmetrically arranged on both sides of the clip fixing body (171) and is integrally connected with the clip fixing body (171). An elastic clamping opening is formed between the other ends of the pair of elastic clip arms (172). A clip fixing through hole (1710) is formed in the middle of the clip fixing body (171). The clip fixing through hole (1710) is aligned with the second conveying connection hole (160) for a conveying fixing member to pass through and be fixedly connected.

8. The lead feeding unit according to claim 7, wherein The pair of elastic clip arms (172) are arranged in an arc shape, and the vertical cross-sectional shape of the elastic clip (17) is U-shaped.

9. The lead feeding unit according to claim 7, characterized in that, Guide portions (173) are provided by extending both sides of the other ends of the pair of elastic clip arms (172) away from the clip fixing body (171), and the guide portions (173) are in arc transition with the elastic clip arms (172).

10. The lead feeding unit according to claim 9, wherein, A rubber protective sleeve is sleeved on the elastic clip arms (172) and the guide portions (173).

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