Automatic pin bending mechanism suitable for plug-in machine

Abstract

The utility model relates to the technical field of electronic component processing equipment, in particular to an automatic pin bending mechanism suitable for a plug-in machine, which comprises a pin bending assembly and an adjusting assembly which are matched with each other. The pin bending assembly comprises a pin bending rod and a rotating unit in transmission connection with the pin bending rod, and the rotating unit is used for driving the pin bending rod to rotate so as to enable the pin bending rod to bend an inserted component; the adjusting assembly comprises a longitudinal unit, a transverse unit and a vertical unit which are in transmission connection in sequence. Wherein the rotating unit is in transmission connection with the vertical unit, so that the bent foot rod can do reciprocating motion in the transverse direction, the longitudinal direction and the vertical direction. According to the invention, the pin bending rod rotates and moves through intelligent automatic control, so that pin bending at any angle is carried out in time after a component is plugged in by the plug-in machine, the component is preliminarily fixed on a product, the quality of the product can be improved, and the production efficiency is improved. And meanwhile, the multi-directional linkage enables the pin bending assembly to carry out pin bending treatment on various components according to actual requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component processing equipment, in particular to an automatic leg bending mechanism suitable for an insertion machine. Background Art

[0002] Insertion machines are mainly used to insert workpieces of specific shapes and sizes (such as silicon wafers, electronic components, etc.) into predetermined holes or slots of another workpiece (such as PCB boards, bases, etc.) according to preset positions and directions.

[0003] However, most of the commonly used plug-in machines on the market usually only perform plug-in, which makes it easy for components to fall out during the transmission process, resulting in defects when entering the wave soldering process, seriously affecting the quality of the product. Utility Model Content

[0004] The purpose of the present invention is to provide an automatic foot bending mechanism suitable for an insertion machine, aiming at the deficiencies in the above-mentioned prior art and to solve the technical problem that most insertion machines usually only perform insertion, which easily leads to defective products.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An automatic foot bending mechanism suitable for an insertion machine, comprising a foot bending assembly and an adjustment assembly arranged in cooperation with each other;

[0007] The bending foot assembly includes a bending foot rod and a rotating unit connected to the bending foot rod, and the rotating unit is used to drive the bending foot rod to rotate so that the bending foot rod bends the inserted components;

[0008] The adjustment assembly includes a longitudinal unit, a transverse unit and a vertical unit which are sequentially connected to each other by transmission;

[0009] The rotating unit is in transmission connection with the vertical unit so that the bent leg rod can reciprocate in the horizontal, longitudinal and vertical directions.

[0010] Furthermore, the bent leg assembly also includes a coupling, one end of the coupling is plugged into the bent leg rod, and the other end of the coupling is transmission-connected to the rotating unit.

[0011] Furthermore, the rotating unit includes a driver and a first fixing seat fixedly connected to the driver, the driver is connected to the coupling, and the first fixing seat is connected to the vertical unit.

[0012] Furthermore, the vertical unit includes a vertical transmission member and a second fixed seat rotatably connected to the vertical transmission member, the vertical transmission member is connected to the first fixed seat, and the second fixed seat is connected to the horizontal unit.

[0013] Furthermore, the vertical unit further includes a first pressing block and a second pressing block fixedly connected to the first pressing block, the vertical transmission member is arranged between the first pressing block and the second pressing block, and the second pressing block is clamped with the first fixing seat.

[0014] Furthermore, the vertical unit also includes a first slide rail and a first slider fixedly connected to the first slide rail. The first slide rail is arranged on the side of the second fixed seat. The first slider is fixedly connected to the first fixed seat so that the bent leg rod can be lifted and lowered along the first slide rail.

[0015] Furthermore, the vertical unit further includes a sensing sheet and a sensing base matching the sensing sheet, the sensing sheet is connected to the first fixing base, and the sensing base is connected to the second fixing base.

[0016] Furthermore, the transverse unit includes a third fixed seat, a second slider fixedly connected to the third fixed seat, and a second slide rail slidably connected to the second slide rail. The third fixed seat is fixedly connected to the second fixed seat, and the second slide rail is connected to the longitudinal unit.

[0017] Furthermore, the transverse unit further includes a transverse transmission member and a connecting plate fixedly connected to the transverse transmission member, the connecting plate is fixedly connected to the third fixing seat, and the transverse transmission member is arranged below the second slide rail.

[0018] Furthermore, the longitudinal unit includes two symmetrically distributed third slide rails, a third slider slidably connected to the third slide rails, and a longitudinal transmission member connected to the second slide rails, and the third slider is fixedly connected to the second slide rail.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The present invention provides a bending mechanism comprising a bending assembly and an adjusting assembly that cooperate with each other; the bending assembly comprises a bending rod and a rotating unit that is connected to the bending rod, the rotating unit being used to drive the bending rod to rotate so that the bending rod can bend the inserted component; the adjusting assembly comprises a longitudinal unit, a transverse unit and a vertical unit that are sequentially connected to each other; wherein the rotating unit is connected to the vertical unit so that the bending rod can reciprocate in the transverse, longitudinal and vertical directions. The present invention connects the bending assembly and the vertical unit, and the longitudinal unit, transverse unit and vertical unit that are sequentially connected to each other enable the bending assembly to be adjusted in the transverse, longitudinal and vertical directions, and then drives the bending rod to rotate through the rotating unit of the bending assembly, so that the bending can be performed at any angle in time after the component is inserted in the insertion machine, so that the component is initially fixed on the product, thereby improving the quality of the product and saving the space occupied by the equipment. At the same time, the multi-directional linkage of the present invention enables the bending assembly to perform various component bending processes according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a perspective diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0024] Figure 3 This is one of the schematic diagrams of the dispersed structure of the utility model;

[0025] Figure 4 This is the second schematic diagram of the dispersed structure of the present utility model.

[0026] The reference numerals used in the above drawings are as follows:

[0027] 1-bending foot assembly, 11-bending foot rod, 12-rotating unit, 121-driver, 122-first fixed seat, 13-coupling;

[0028] 2-Regulating components;

[0029] 21- vertical unit, 211- vertical transmission member, 212- second fixed seat, 213- first pressing block, 214- second pressing block, 215- first slide rail, 216- first slider, 217- induction sheet, 218- induction seat;

[0030] 22 - transverse unit, 221 - third fixed seat, 222 - second slider, 223 - second slide rail, 224 - transverse transmission member, 225 - connecting plate;

[0031] 23-longitudinal unit, 231-third slide rail, 232-third slider, 233-longitudinal transmission member;

[0032] 3-Fixed bracket. DETAILED DESCRIPTION

[0033] In the description of this application, the term "plurality" refers to more than two (including two). The technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Terms such as "installation", "connection", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the description of this application, the orientation or position relationship indicated by technical terms such as "upper", "lower", "length", "width", "height", "top", "bottom", and "inside" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of this application.

[0035] In order to more clearly understand the above-mentioned objectives, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application, so as to understand in detail how to solve the problems raised in the above-mentioned background technology.

[0036] It should be noted that when components are inserted into workpieces such as PCB boards and bases, the parts that undergo foot bending treatment are the pins of the components. The pins are an important part connecting the components to the PCB board. They are fixed to the PCB board by welding or other means to achieve circuit connection and signal transmission. During the insertion process, the PCB board is located above the foot bending mechanism. After the components are inserted into the PCB board from top to bottom, the pins of the components enter the foot bending mechanism, and then the rotating unit 12 and the adjustment component 2 are driven to bend the pins of the components. The foot bending treatment can increase the connection strength between the component pins and the PCB board, prevent the pins from loosening or falling off under vibration or impact environments, and can also make the pins more compactly arranged on the PCB board.

[0037] However, since most of the commonly used plug-in machines on the market usually only perform plug-in processing, components are easily thrown out or jumped during the transmission process, resulting in poor wave soldering and affecting product quality. Therefore, the foot bending mechanism of this application is set on the plug-in machine, which can perform foot bending processing in time after plug-in; of course, the foot bending mechanism can also be installed in different equipment according to needs.

[0038] like Figures 1 to 4As shown, an automatic foot bending mechanism suitable for an insertion machine includes a foot bending assembly 1 and an adjustment assembly 2 that are arranged in cooperation with each other; the foot bending assembly 1 includes a foot bending rod 11 and a rotating unit 12 that is transmission-connected to the foot bending rod 11, and the rotating unit 12 is used to drive the foot bending rod 11 to rotate so that the foot bending rod 11 bends the inserted components; the adjustment assembly 2 includes a longitudinal unit 23, a transverse unit 22 and a vertical unit 21 that are transmission-connected to each other in sequence; wherein the rotating unit 12 is transmission-connected to the vertical unit 21 so that the foot bending rod 11 can reciprocate in the transverse, longitudinal and vertical directions.

[0039] Specifically, including but not limited to, the bending foot rod 11 is a columnar structure with a cylinder and an elbow at both ends respectively. The corresponding shape and structure can also be set according to actual production needs, for example, a standard 45 degree or 90 degree, a special shape of shrimp waist, etc., or it can be set as a bending foot head (application number: 2010106069233) or a bending foot bottom mold (application number: 2017114096408) in the prior art, which is not specifically limited here; at the same time, the bending foot rod 11 and the rotating unit 12 are snap-fitted or sleeved, and both are arranged vertically upward to form a detachable connection, thereby realizing the rapid disassembly and assembly of the bending foot rod 11, which is beneficial to the later maintenance of the equipment and the handling of the pins of various components. No bending foot processing is required; of course, in some special needs, the rotating unit 12 and the bending foot rod 11 can be set as an integrated structure; based on this, the rotating unit 12 can drive the bending foot rod 11 to rotate when rotating, so that the bending foot rod 1111 can bend the pins of the components; in this embodiment, the bending foot mechanism is installed on the fixing frame 3. At this time, the horizontal, vertical and vertical directions are respectively the length direction, width direction and height direction of the fixing frame 3, so that the horizontal unit 22, longitudinal unit 23 and vertical unit 21 of the adjustment component 2 can drive the bending foot component 1 to move in multiple directions, so that the bending foot rod 11 can move and rotate in any direction, so as to adjust the bending angle or radius, etc.

[0040] Through the above solution, the pins can be bent in time after the insertion machine is inserted to avoid the component from jumping or falling off. It can also save equipment space and improve product quality and equipment adaptability.

[0041] like Figure 1 and Figure 3 As shown, as an improved specific embodiment, the bent leg assembly 1 further includes a coupling 13 , one end of the coupling 13 is plugged into the bent leg rod 11 , and the other end of the coupling 13 is transmission-connected to the rotating unit 12 .

[0042] Specifically, including but not limited to, the shaft coupling 13 and the corresponding setting of the curved foot rod 11 plug-in structure, so that the shaft coupling 13 and the curved foot rod 11 linkage, curved foot rod 11 is set in the top end of the shaft coupling 13, the bottom end of the shaft coupling 13 and the rotating unit 12 fixed connection, at this time can be driven by rotating unit 12 rotating curved foot rod 11 rotation, shaft coupling 13 can ensure smooth transition of power, absorbing vibration and impact, so as to guarantee the service life of the curved foot rod 11; in addition, the shaft coupling 13 is also conducive to the debugging and maintenance of the equipment.

[0043] As shown in Figure 3 , as an improved embodiment, the rotating unit 12 includes a driver 121 and a first fixed seat 122 fixedly connected with the driver 121, the driver 121 is connected with the shaft coupling 13, and the first fixed seat 122 is connected with the vertical unit 21.

[0044] Specifically, including but not limited to, the driver 121 can be set as a servo motor, so that the driver 121 can be inserted and fixed with the shaft coupling 13, the first fixed seat 122 is L-shaped structure, the driver 121 is installed on the front face of the first fixed seat 122, the vertical transmission member 211 is arranged on the back of the first fixed seat 122, so that the driver 121 and the vertical transmission member 211 are arranged oppositely, at this time, the first fixed seat 122 and the vertical unit 21 are connected, so that the vertical unit 21 can drive the curved foot rod 11 to move vertically, the driver 121 can make the curved foot rod 11 rotate forward or reverse, and the curved foot rod 11 can be adjusted arbitrarily.

[0045] As shown in Figure 4 , as an improved embodiment, the vertical unit 21 includes a vertical transmission member 211 and a second fixed seat 212 rotatably connected with the vertical transmission member 211, the vertical transmission member 211 is connected with the first fixed seat 122, and the second fixed seat 212 is connected with the horizontal unit 22.

[0046] Specifically, including but not limited to, the vertical transmission member 211 can be set as a set of two matching synchronous wheels, and a structure in which the synchronous wheels and the synchronous belt cooperate to transmit the transmission, which can achieve the purpose of transmission. The technical personnel in this field can design its specific structure and standards according to the industry standards. It should be noted that the two synchronous wheels are arranged relative to each other and flush with each other, which can prevent the synchronous belt from offsetting or falling off; the second fixed seat 212 can also be set as an L-shaped structure. At this time, the first fixed seat 122 and the second fixed seat 212 are arranged relative to each other, and the vertical transmission member 211 can be fixedly installed on one side of the second fixed seat 212, and the second fixed seat 212 is fixedly connected to the horizontal unit 22, so that the second fixed seat 212 can be driven to move horizontally, thereby improving the adaptability and practicality of the equipment. It is worth noting that the synchronous wheel of the vertical transmission member 211 can also be provided with a tensioning device to adjust the tightness of the synchronous belt in turn.

[0047] like Figure 4 As shown, as an improved specific embodiment, the vertical unit 21 also includes a first pressure block 213 and a second pressure block 214 fixedly connected to the first pressure block 213, the vertical transmission member 211 is arranged between the first pressure block 213 and the second pressure block 214, and the second pressure block 214 is clamped with the first fixed seat 122.

[0048] Specifically, including but not limited to, the first pressing block 213 and the second pressing block 214 are detachable structures and can be fixed by screws. At this time, the first pressing block 213 and the second pressing block 214 are used to clamp the synchronous belt of the vertical transmission member 211. A through hole can be opened on the synchronous belt, and the screws are passed through the synchronous belt and fixed, thereby realizing the linkage of the synchronous belt, the first pressing block 213 and the second pressing block 214. In addition, the second pressing block 214 is set to an L-shaped structure, and the short bend of the second pressing block 214 matches the first pressing block 213. The second pressing block 214 The long bend is arranged on the side of the second fixing seat 212 and extends forward, so the side of the first fixing seat 122 is provided with a corresponding mounting structure. By setting the groove and the through hole, the long bend of the second pressure block 214 can be inserted into the groove, and the connection between the second pressure block 214 and the first fixing seat 122 can be realized by screws, so that the second pressure block 214 and the first fixing seat 122 are linked. It is worth noting that one bend of the first fixing seat 122 is used to install the driver 121, and the other bend is used to connect with the second pressure block 214.

[0049] like Figure 3 As shown, as an improved specific embodiment, the vertical unit 21 also includes a first slide rail 215 and a first slider 216 fixedly connected to the first slide rail 215. The first slide rail 215 is arranged on the side of the second fixed seat 212, and the first slider 216 is fixedly connected to the first fixed seat 122 so that the bent foot rod 11 can be raised and lowered along the first slide rail 215.

[0050] The first and second slide blocks 215 are connected to each other to form a plurality of movable members 216, and the movable members 217 are connected to the first and second slide blocks 216 to form a plurality of movable members 218.

[0051] like Figure 3 As shown, as an improved specific embodiment, the vertical unit 21 further includes a sensing piece 217 and a sensing base 218 matching the sensing piece 217 , the sensing piece 217 is connected to the first fixing base 122 , and the sensing base 218 is connected to the second fixing base 212 .

[0052] Specifically, including but not limited to, the setting of the sensing piece 217 and the sensing seat 218 helps to accurately control the moving distance of the bending foot rod 11. The sensing piece 217 is set to an L-shaped structure, and one end of the sensing piece 217 is installed to the top surface of the first fixed seat 122, so that the sensing piece 217 can follow the first fixed seat 122 in linkage, and the sensing seat 218 can be installed to the side of the second fixed seat 212, and the sensing seat 218 has a notch. The bending of the sensing piece 217 can pass through the notch, so that the lifting distance can be monitored and controlled in real time.

[0053] like Figure 3 As shown, as an improved specific embodiment, the horizontal unit 22 includes a third fixed seat 221, a second slider 222 fixedly connected to the third fixed seat 221, and a second slide rail 223 slidably connected to the second slider 222, the third fixed seat 221 is fixedly connected to the second fixed seat 212, and the second slide rail 223 is connected to the longitudinal unit 23.

[0054] Specifically, including but not limited to, the third fixed seat 221 is also set to an L-shaped structure, at this time, a bent side surface of the third fixed seat 221 is connected to the second fixed seat 212, ensuring that the vertical unit 21 can follow the horizontal unit 22 in linkage, at this time, the servo motor of the vertical transmission member 211 is placed above the other bent side surface of the third fixed seat 221, and the second slider 222 is set below the third fixed seat 221 and fixed, the second slide rail 223 is slidably connected to the second slider 222, and the second slide rail 223 consists of a horizontal plate and a slide rail set on the horizontal plate. At this time, the horizontal plate is also provided with a buffer block, a limit block and an induction component, etc., to improve the automatic control of the bending foot structure, and at the same time, it can also ensure the horizontal reciprocating motion of the bending foot rod 11; it is worth noting that the horizontal unit 22 is also provided with a drag chain, one end of the drag chain is fixed on the drag chain plate, and the drag chain plate is fixedly connected to the third fixed seat 221, which can reduce wear or breakage caused by high-frequency movement, thereby extending the service life of the equipment.

[0055] like Figure 3 As shown, as an improved specific embodiment, the transverse unit 22 also includes a transverse transmission member 224 and a connecting plate 225 fixedly connected to the transverse transmission member 224, the connecting plate 225 is fixedly connected to the third fixed seat 221, and the transverse transmission member 224 is arranged below the second slide rail 223.

[0056] Specifically, including but not limited to, the transverse transmission member 224 can be set as a set of two matching synchronous wheels, and a structure in which the synchronous wheels and the synchronous belt cooperate to transmit the transmission, thereby achieving the purpose of transmission, wherein one of the synchronous wheels is connected to a servo motor for driving the rotation of the synchronous wheel, thereby rotating the synchronous belt. The specific structure and standards thereof can be designed by technicians in this field according to the standards within the industry. It should be noted that the two synchronous wheels are arranged opposite to each other and flush with each other, which can prevent the synchronous belt from deviating or falling off; the transverse transmission member 224 is arranged below the above-mentioned transverse plate, and the connecting plate 225 is an L-shaped structure, and a traction block is also provided on the synchronous belt. The traction block and the connecting plate 225 are fixed to each other, so that the connecting plate 225 can move with the horizontal transmission member 224. A boss is provided on the connecting plate 225, and a through hole is provided on the third fixed seat 221. The boss is inserted into the through hole, so that the third fixed seat 221 is fixedly connected to the connecting plate 225. The horizontal transmission member 224 drives the third fixed seat 221 and the second fixed seat 212 to move, so that the bending rod 11 can be driven horizontally, ensuring the automatic control of the equipment and meeting the pin bending requirements of various components.

[0057] like Figure 3 and Figure 4As shown, as an improved specific embodiment, the longitudinal unit 23 includes two symmetrically distributed third slide rails 231, a third slider 232 slidingly connected to the third slide rail 231, and a longitudinal transmission member 233 connected to the second slide rail 223, and the third slider 232 is fixedly connected to the second slide rail 223.

[0058] Specifically, including but not limited to, the two third slide rails 231 are respectively composed of slide rails set on two longitudinal plates, and the two longitudinal plates are set at both ends of the transverse plate. At this time, the top surfaces of both ends of the transverse plate are provided with traction blocks, the traction blocks and the longitudinal transmission member 233 are fixedly connected, and the traction blocks are fixed to the top surface of the transverse plate, and the third slider 232 is placed under the bottom surface of the transverse plate. The third slider 232 is fixedly connected to the transverse plate of the second slide rail 223; the longitudinal transmission member 233 can be set as a set of two matching synchronous wheels, and a structure in which the synchronous wheels and the synchronous belt cooperate to transmit the transmission, thereby achieving the purpose of transmission, one of the synchronous wheels is connected to a servo motor for driving the rotation of the synchronous wheel, thereby rotating the synchronous belt, and the specific structure and standards thereof can be known to those skilled in the art. It is designed according to industry standards. It should be noted that the two synchronous wheels are arranged front to back relative to each other and flush on the same longitudinal plate, which can prevent the synchronous belt from offset or falling off. The transverse plate is connected between the two longitudinal plates to form an I-shaped structure, so that the bending foot rod 11 can be regulated in this range; based on this, the longitudinal unit 23 can drive the entire transverse unit 22 to move forward and backward, the third fixed seat 221 can drive the vertical unit 21 to move left and right, the second fixed seat 212 can drive the first fixed seat 122 to move up and down, and then rotate through the rotating unit 12, thereby realizing multi-directional adjustment of the bending foot rod 11 and ensuring multi-directional regulation of the equipment; it is worth noting that the longitudinal unit 23 is provided with a drag chain, which can reduce wear or breakage caused by high-frequency movement, thereby extending the service life of the equipment.

[0059] like Figure 1 As shown, as an improved specific embodiment, the leg bending mechanism further includes a fixing frame 3, which is fixedly connected to the longitudinal unit 23, and the fixing frame 3 is used to install the leg bending mechanism in the device.

[0060] Specifically, including but not limited to, the fixing frame 3 is provided with a base plate and protective covers arranged at both ends of the base plate, and multiple reinforcing plates are also installed between the base plate and the protective cover to ensure the stability of the structure. The longitudinal plate of the third slide rail 231 is fixedly installed on the base plate, so that the bending foot assembly 1 moves in the fixing frame 3. At this time, the entire bending foot mechanism can be installed in the corresponding equipment through the fixing frame 3, so that the bending foot can be processed to improve the function and adaptability of the equipment.

[0061] Finally, the transverse unit 22, longitudinal unit 23, vertical unit 21, and rotation unit 12 of the bending mechanism of the present application can all be adjusted individually to achieve multi-directional linkage control, and by connecting controllers and other devices according to production needs, the bending rod 11 can be sent to any specified position, or the movement of the component pins during bending can be adjusted in real time, which can ensure the driving force for bending the legs, improve the success rate and efficiency of bending the components, and enable the bending rod 11 to bend the legs at any angle according to working conditions and needs, so as to meet the different bending processing requirements of various components and improve the intelligence, automation and adaptability of the equipment.

[0062] It should be noted that the above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above-described embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. An automatic foot bending mechanism suitable for an insertion machine, characterized in that: It includes a bending foot assembly and an adjusting assembly which are arranged in cooperation with each other; The bending foot assembly includes a bending foot rod and a rotating unit connected to the bending foot rod, wherein the rotating unit is used to drive the bending foot rod to rotate so that the bending foot rod bends the inserted components; The adjustment assembly includes a longitudinal unit, a transverse unit and a vertical unit which are sequentially connected to each other by transmission; Wherein, the rotating unit is in transmission connection with the vertical unit so that the bent leg rod can reciprocate in the horizontal, longitudinal and vertical directions.

2. The automatic leg bending mechanism suitable for an insertion machine according to claim 1, characterized in that: The bent foot assembly further comprises a coupling, one end of which is plugged into the bent foot rod, and the other end of which is transmission-connected to the rotating unit.

3. The automatic leg bending mechanism suitable for an insertion machine according to claim 2, characterized in that: The rotating unit includes a driver and a first fixing seat fixedly connected to the driver. The driver is connected to the coupling, and the first fixing seat is connected to the vertical unit.

4. The automatic leg bending mechanism for an insertion machine according to claim 3, characterized in that: The vertical unit includes a vertical transmission member and a second fixing seat rotatably connected to the vertical transmission member. The vertical transmission member is connected to the first fixing seat, and the second fixing seat is connected to the horizontal unit.

5. The automatic leg bending mechanism suitable for an insertion machine according to claim 4, characterized in that: The vertical unit further includes a first pressing block and a second pressing block fixedly connected to the first pressing block. The vertical transmission member is disposed between the first pressing block and the second pressing block, and the second pressing block is clamped with the first fixing seat.

6. The automatic leg bending mechanism for an insertion machine according to claim 5, characterized in that: The vertical unit also includes a first slide rail and a first slider fixedly connected to the first slide rail. The first slide rail is arranged on the side of the second fixed seat. The first slider is fixedly connected to the first fixed seat so that the bent leg rod can be lifted and lowered along the first slide rail.

7. The automatic leg bending mechanism for an insertion machine according to claim 6, characterized in that: The vertical unit further includes a sensing sheet and a sensing base matched with the sensing sheet, the sensing sheet is connected to the first fixing base, and the sensing base is connected to the second fixing base.

8. The automatic leg bending mechanism for an insertion machine according to claim 4, characterized in that: The transverse unit includes a third fixed seat, a second slider fixedly connected to the third fixed seat, and a second slide rail slidably connected to the second slide rail. The third fixed seat is fixedly connected to the second fixed seat, and the second slide rail is connected to the longitudinal unit.

9. The automatic leg bending mechanism suitable for an insertion machine according to claim 8, characterized in that: The transverse unit further includes a transverse transmission member and a connecting plate fixedly connected to the transverse transmission member, the connecting plate is fixedly connected to the third fixing seat, and the transverse transmission member is arranged below the second slide rail.

10. The automatic leg bending mechanism suitable for an insertion machine according to claim 8, characterized in that: The longitudinal unit includes two symmetrically distributed third slide rails, a third slider slidably connected to the third slide rails, and a longitudinal transmission member connected to the second slide rails, and the third slider is fixedly connected to the second slide rails.

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