Pin header connector equipment

Abstract

The invention belongs to the technical field of electrical element processing, and discloses pin header connector production and assembly equipment, a pin header connector comprises a rubber shell and a straight pin terminal, the pin header connector production and assembly equipment comprises a workbench, and the workbench is provided with a blanking station and an assembly station; a vertical feeding part is arranged on the blanking station, and is used for feeding the straight pin terminals in an axial vertical posture; the assembling station is provided with a downward pressing part, and the downward pressing part is used for vertically pressing a straight pin terminal into a corresponding hole position of a rubber shell to complete assembling. The vertical feeding part comprises a discharging pipe arranged in the vertical direction, and the inner diameter of the discharging pipe is matched with the straight-pin terminals so that the straight-pin terminals can be restrained to be kept in the axial vertical posture in the discharging process, and directional vertical feeding of the straight-pin terminals can be achieved. The long and thin straight-pin terminal is peripherally limited by the pipe wall, so that the long and thin straight-pin terminal is effectively prevented from shaking, toppling or rotating in the gravity falling process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical component processing, and particularly relates to a pin connector production and assembly device. BACKGROUND

[0002] A typical structure of the pin connector includes an insulating plastic shell made of engineering plastic and a metal straight pin terminal embedded in a hole position of the plastic shell. In the traditional manufacturing process, the straight pin terminal needs to be inserted into the plastic shell by automatic or semi-automatic equipment to complete the assembly. According to the different insertion directions of the straight pin terminal, the prior art is mainly divided into two types of horizontal insertion and vertical insertion. For example, a pin connector assembly device (CN202020391450.9) is an automatic assembly device for straight pin connectors by using the vertical insertion method. Although this scheme improves the assembly efficiency to a certain extent, there are still the following outstanding problems in the actual application process: Firstly, the vertical insertion of the straight pin terminal feeding technology is not mature, and generally relies on manual intervention or semi-automatic feeding. Although some equipment attempts to introduce a vibrating disc or a simple material channel for straight pin terminal conveying, due to the long and slender, high gravity center and easy to dump of the straight pin terminal, it is difficult to realize stable, continuous and single separation of automatic feeding in the vertical posture. Especially for small-pitch straight pin terminals.

[0003] Secondly, the straight pin terminal lacks effective positioning and guiding mechanism in the insertion process, and is prone to deviation, skew and even bending. In the vertical pressing process, if the tip of the straight pin terminal is not accurately aligned with the center of the hole position of the plastic shell, even a small positional deviation will generate a lateral force at the moment of insertion, causing elastic or plastic deformation of the long and slender straight pin terminal. The existing equipment mostly uses a rigid push rod for direct pressing, without setting a buffer, floating or self-centering structure, which cannot compensate for the hole position deviation caused by the shrinkage, warping or burr of the plastic shell, further increasing the insertion failure rate. SUMMARY

[0004] Therefore, the application aims to provide a pin connector production and assembly device to solve the problems in the background art.

[0005] To solve the above technical problems, the technical scheme of the present application is a pin header connector production and assembly equipment, which comprises a glue shell and a straight pin terminal, and comprises a workbench, wherein the workbench is provided with a blanking station and an assembly station; the blanking station is provided with a vertical feeding component, which is used for feeding the straight pin terminal in an axial vertical posture; the assembly station is provided with a pressing component, which is used for vertically pressing the straight pin terminal into the corresponding hole position of the glue shell to complete the assembly; the vertical feeding component comprises a blanking pipe arranged in a vertical direction, and the inner diameter of the blanking pipe is matched with the straight pin terminal to constrain the straight pin terminal to keep an axial vertical posture during blanking, so as to realize directional vertical feeding of the straight pin terminal.

[0006] Preferably, the bottom end of the blanking pipe is provided with an intermittent discharging pipe, the inner diameter of the intermittent discharging pipe is consistent with the inner diameter of the blanking pipe, and the feeding end and the discharging end of the intermittent discharging pipe are respectively provided with a first isolation piece and a second isolation piece; the first isolation piece and the second isolation piece are configured to be alternately opened and closed: when the first isolation piece is opened and the second isolation piece is closed, a single straight pin terminal enters the intermittent discharging pipe from the blanking pipe; then the first isolation piece is closed and the second isolation piece is opened, so that the straight pin terminal falls out of the intermittent discharging pipe; the axial length of the intermittent discharging pipe is equal to the length of the straight pin terminal, so as to ensure that only one straight pin terminal is accommodated each time, thereby realizing single and intermittent vertical feeding of the straight pin terminal.

[0007] Further, at least one end of the straight pin terminal is provided with a pointed end, when only one end of the straight pin terminal is provided with a pointed end, the pointed end faces downward during feeding, so as to guide the pointed end of the straight pin terminal into the corresponding hole position of the glue shell by the pressing mechanism, thereby reducing the insertion resistance and improving the centering accuracy; the upper surface of the first isolation piece is provided with an inclined guide slope, when the first isolation piece is switched from the opened state to the closed state, the guide slope contacts the pointed end of the straight pin terminal, and the straight pin terminal is lifted along the axial direction during the closing process of the first isolation piece, so that the pointed end is separated from the movement path of the first isolation piece, thereby avoiding interference between the pointed end and the first isolation piece, and ensuring reliable closing of the first isolation piece.

[0008] Further, the pipe wall of the intermittent discharging pipe is respectively provided with an upper opening and a lower opening at positions corresponding to the first isolation piece and the second isolation piece, the first isolation piece passes through the upper opening to close the feeding end when entering the pipe and to open the feeding end when retreating out of the pipe; the second isolation piece passes through the lower opening to close the discharging end when entering the pipe and to open the discharging end when retreating out of the pipe; through the alternate movement of the first isolation piece and the second isolation piece at the upper opening and the lower opening, intermittent opening and closing control of the feeding end and the discharging end of the intermittent discharging pipe is realized.

[0009] Further, the first and second isolation members are of the first option: both are circular arc-shaped baffle plates, coaxially installed on a transmission shaft outside the intermittent material dropping pipe; the rotation of the transmission shaft drives the first and second isolation members to rotate synchronously; when the baffle plates are turned to enter the upper or lower opening and embedded inside the intermittent material dropping pipe, the corresponding feeding or discharging end is closed; when the baffle plates are turned to exit the upper or lower opening and completely located outside the intermittent material dropping pipe, the corresponding feeding or discharging end is opened; the phase difference of the first and second isolation members in the circumferential direction is 180°, so as to realize the alternate opening and closing of the feeding and discharging ends.

[0010] Further, the first and second isolation members are of the second option: both are push blocks, slidingly arranged along the radial direction of the intermittent material dropping pipe; a control lever is rotatably installed on the workbench outside the intermittent material dropping pipe, the rotation of the control lever is located between the first and second isolation members, and the two ends of the control lever are movably connected with the first and second isolation members respectively; the reciprocating swing of the control lever in a preset angle range drives the first and second isolation members to synchronously slide reversely along the radial direction; when the first isolation member slides into the upper opening and is embedded inside the intermittent material dropping pipe, the feeding end is closed, while the second isolation member slides out of the lower opening, opening the discharging end; when the second isolation member slides into the lower opening and is embedded inside the intermittent material dropping pipe, the discharging end is closed, while the first isolation member slides out of the upper opening, opening the feeding end; thereby realizing the alternate opening and closing of the feeding and discharging ends of the intermittent material dropping pipe and completing the intermittent vertical material dropping of a single straight-foot terminal.

[0011] As a preferred, a pressing seat capable of reciprocating between the material dropping station and the assembling station is arranged on the workbench, a carrying pipe is arranged above the pressing seat, and a material placing cavity is arranged below the pressing seat, the carrying pipe penetrates the material placing cavity in the vertical direction; the inner diameter of the carrying pipe is consistent with the inner diameter of the material dropping pipe, so as to ensure that the terminal maintains an axial vertical posture during transmission; the material placing cavity is used for positioning and placing the rubber shell, so that the terminal mounting hole of the rubber shell is opposite to the lower end outlet of the carrying pipe; when the pressing seat moves to the material dropping station, the upper end of the carrying pipe is connected and communicated with the lower end of the intermittent material dropping pipe, so that a single straight-foot terminal falls into the carrying pipe through the intermittent material dropping pipe and is temporarily stored in the carrying pipe; then, the pressing seat moves to the assembling station, the lower pressing component vertically presses the straight-foot terminal out of the carrying pipe from above and synchronously presses the straight-foot terminal into the corresponding hole position of the rubber shell, thereby completing the assembly of the pin header connector.

[0012] Further, the vertical feeding components are arranged in a linear array on the workbench, and each of the blanking pipe, the intermittent blanking pipe and the bearing pipe is coaxially aligned for synchronous intermittent blanking of a single straight pin terminal.

[0013] Further, the bottom end of the bearing pipe is provided with a stopper which is slidingly arranged in the pipe wall of the bearing pipe along the radial direction of the bearing pipe; the stopper is used to protrude from the inside of the bearing pipe and abut against the bottom end of the straight pin terminal during the movement of the pressing seat from the blanking station to the assembling station, so as to prevent the straight pin terminal from falling due to gravity or vibration during the transfer; the top of the bearing pipe is provided with a control member which is slidingly arranged inside the bearing pipe along the axial direction of the bearing pipe; the lower end surface of the control member and the upper end surface of the stopper form a first inclined surface which is matched; the inclination direction of the first inclined surface is such that when the control member is moved downward under the action of an external force, the stopper can be pushed to retract radially outward; when the downward pressing component moves downward and presses the control member, the control member moves downward along the axial direction, and through the wedge effect of the first inclined surface, the stopper is driven to retract into the pipe wall of the bearing pipe, so as to release the limiting of the straight pin terminal, and the straight pin terminal is vertically pressed into the corresponding hole of the rubber shell under the continuous action of the downward pressing component, thereby completing the insertion work.

[0014] Further, the bearing tube comprises a bottom member fixed on the pressing seat, and an opening and closing member slidingly arranged on the bottom member; a second inclined surface is arranged between the upper end surface of the bottom member and the lower end surface of the opening and closing member; the stopper is arranged on the bottom member, and the control member comprises a driving member and a transmission member; the driving member is slidingly arranged in the bottom member in the axial direction, and the top of the driving member is used for receiving the pressing of the pressing part; the transmission member is slidingly arranged in the opening and closing member in the axial direction, and the lower end surface of the opening and closing member is a first inclined surface; a third inclined surface is formed between the lower end surface of the driving member and the upper end surface of the transmission member, and the third inclined surface is parallel to the second inclined surface; in the initial state, the third inclined surface is above the second inclined surface, the opening and closing member is in the closed position, and the end surface of the opening and closing member and the bottom member jointly enclose a continuous tubular passage, which is used for providing circumferential limiting for the bottom and the sidewall of the straight pin terminal in the initial pressing stage, so as to prevent the terminal from being bent due to cantilever force; when the pressing part descends and presses the driving member, the driving member drives the transmission member to synchronously descend, and first pushes the stopper to retract through the first inclined surface, so as to release the holding of the bottom end of the straight pin terminal; in this stage, the opening and closing member still adheres to the bottom member, and continues to provide lateral limiting for the terminal, so as to ensure that the terminal vertically enters the hole position of the rubber shell; when the driving member continues to descend to the position where the third inclined surface contacts and aligns with the second inclined surface, the lower end surface of the pressing part directly acts on the top surface of the opening and closing member; then, the pressing part continues to descend, directly pushes the opening and closing member to slide in the axial direction, so that the opening and closing member is separated from the bottom member, thereby opening the upper passage of the bearing tube, and avoiding mechanical interference in the process that the terminal is completely pressed into the rubber shell.

[0015] The technical effects of the present application mainly embody in the following aspects: The present application utilizes the tubular wall to form circumferential limiting for the elongated straight pin terminal, effectively inhibits the shaking, dumping or rotation of the terminal in the process of falling under gravity, and accurately sets the axial length of the intermittent material falling pipe as equal to the length of a single terminal, so as to physically limit the intermittent supply of only one terminal each time, and fundamentally eliminates the phenomena of multiple stacking, jamming or material leakage, and realizes the high reliability of single intermittent supply.

[0016] To the problem of rigid interference between the terminal and the isolation mechanism, the present application ingeniously uses the tapered tip provided at one end of the terminal as a functional geometric feature. During the feeding process, the tip is forced downward, and an upward guiding slope is provided on the upper surface of the first isolation piece. When the isolation piece is closed, the slope contacts the tip and slightly lifts it up, so that the tip is out of the movement path, thereby avoiding jamming or damage. This design does not require additional sensors or driving units, and can complete automatic avoidance only by mechanical geometric cooperation, significantly improving the continuity of feeding and the stability of equipment operation.

[0017] The bottom of the bearing tube is provided with a radial sliding stopper which extends to hold the bottom end of the terminal during the movement of the pressing seat to prevent it from falling due to vibration or acceleration; at the same time, the control member at the top is linked with the stopper through a first inclined surface. When the pressing member presses the control member, the stopper is retracted under the wedge action, which instantly releases the limiting to make the terminal smoothly pressed out. This all-mechanical "lock-release" mechanism responds quickly and reliably, and solves the contradictory requirements of the slender terminal in dynamic transfer and static pressing. The bearing tube is further divided into a bottom member and an opening and closing member above, which are matched through a second inclined surface. In the initial state, the two are closed to form a complete tube cavity, which provides circumferential support for the terminal to prevent bending due to cantilever effect in the early stage of pressing; after the stopper is released, the pressing member continues to move downward and directly pushes the opening and closing member to move upward to open the channel, avoiding friction or collision of the edge when the terminal is completely pressed in. This two-stage action is triggered by only a single pressing stroke, realizing the intelligent response of "stability first and then release", and significantly improving the insertion success rate of high length-diameter ratio terminals.

[0018] The present application supports both the circular arc-shaped baffle disc structure driven by the external transmission shaft (suitable for single-row high stability scenarios) and the compact scheme using radial push block combined with external swing control lever. The latter occupies very little horizontal space due to the movement of the parts, can realize multi-row close array, and meets the synchronous feeding demand of double-row or multi-row high-density pin connector. The two modes can be flexibly selected according to product specifications, taking into account the equipment universality and production line flexibility requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural diagram of the present application; Figure 2 is Figure 1 is a structural diagram of the vertical feeding part and the vertical workbench; Figure 3 is Figure 2 is a structural diagram of the vertical feeding part using a circular arc-shaped baffle disc; Figure 4 is Figure 2 is a structural diagram of the vertical feeding part using a push block; Figure 5 is Figure 1 is a structural diagram of the bearing tube; Figure 6 For Figure 1 The internal structure diagram of the middle carrier tube; Figure 7 The structure diagram of the row pin connector; In the figure: 1, workbench; 11, blanking station; 12, assembly station; 2, vertical feeding component; 21, blanking pipe; 22, intermittent blanking pipe; 23, upper opening; 24, lower opening; 25, first isolation piece; 26, second isolation piece; 27, guide inclined surface; 281, circular arc baffle; 282, transmission shaft; 283, push block; 284, control rod; 3, pressing component; 31, pressing seat; 32, carrier tube; 33, material placing cavity; 34, stop block; 35, bottom component; 36, opening and closing component; 37, driving component; 38, transmission component; 391, first inclined surface; 392, second inclined surface; 393, third inclined surface; 41, rubber shell; 42, straight foot terminal; 43, pointed end. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, so that the technical solutions of the present application are easier to understand and master. In the embodiments, it should be understood that the orientations or positional relationships indicated by the terms "intermediate", "upper", "lower", "top", "right side", "left end", "upper", "back", "middle" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the present specific embodiments, the connection or fixing manner between components is not specifically described, which can be connected or fixed by bolt fixing or pin fixing commonly used in the prior art, or pin shaft connection, etc., so in the present embodiments, it will not be described in detail.

[0021] The row pin connector production and assembly equipment provided by the present application is mainly applied to the vertical automatic insertion process of the straight foot terminal 42 and the rubber shell 41, and is especially suitable for efficient and high-yield manufacturing of small-pitch and high-density row pin connectors. However, it should be understood that the application of the present application is not limited to this; any electronic connector, pin device or other automatic assembly scene of components and devices that need to be precisely inserted axially that adopts the same or similar vertical feeding and pressing principle can apply the technical solutions of the present application and obtain the corresponding technical effects.

[0022] In addition, as the common knowledge in the art, the pin header connector, the vibration plate feeding system, the tape feeding mechanism, the servo pressing driving device, the glue shell 41 positioning jig, and the timing coordination system based on PLC or motion controller mentioned above are all the conventional components in the connector automatic assembly equipment. Their basic working principles, structural forms and control logic have been widely applied and fully disclosed in the industry, so this paper will not go into details.

[0023] Embodiment one The embodiment discloses a pin header connector production and assembly equipment, referring to Figure 7 The pin header connector includes a glue shell 41 and a straight pin terminal 42, at least one end of the straight pin terminal 42 is provided with a pointed end 43; referring to Figure 1 , including a workbench 1, the workbench 1 has a blanking station 11 and an assembly station 12; the blanking station 11 is provided with a vertical feeding component 2, the vertical feeding component 2 is used for feeding the straight pin terminal 42 in an axial vertical posture; the assembly station 12 is provided with a pressing component 3, the pressing component 3 is used for vertically pressing the straight pin terminal 42 into the corresponding hole position of the glue shell 41 to complete the assembly; Referring to Figure 2 , the vertical feeding component 2 includes a blanking pipe 21 arranged in the vertical direction, the inner diameter of the blanking pipe 21 is matched with the straight pin terminal 42 to constrain the straight pin terminal 42 to keep an axial vertical posture during the blanking process, realizing the directional vertical feeding of the straight pin terminal 42. The upper end of the blanking pipe 21 is connected with an automatic feeding system for continuously feeding the straight pin terminal 42 into it. Specifically, the straight pin terminal 42 is placed in the vibration plate hopper in bulk form. The vibration plate arranges the terminals one by one in a directional manner through electromagnetic vibration and track design, and conveys them to the outlet along the spiral track. The outlet is provided with a guide chute, which is accurately connected with the upper end of the blanking pipe 21. The terminals enter the blanking pipe 21 one by one under the action of gravity and micro-vibration, keeping an axial vertical posture. In order to prevent the terminals from stacking at the inlet, a photoelectric sensor and a gas blowing removal device can be arranged at the end of the chute to ensure that only one enters.

[0024] Preferably, referring to Figure 2To realize single intermittent feeding; the bottom end of the feeding pipe 21 is provided with an intermittent dropping pipe 22, the inner diameter of the intermittent dropping pipe 22 is consistent with the inner diameter of the feeding pipe 21, ensuring smooth transition of the terminal. The feeding end and the discharging end of the intermittent dropping pipe 22 are respectively provided with a first isolation piece 25 and a second isolation piece 26; the two are alternately opened and closed: when the first isolation piece 25 is opened and the second isolation piece 26 is closed, a single straight pin terminal 42 enters the intermittent dropping pipe 22 from the feeding pipe 21; then the first isolation piece 25 is closed and the second isolation piece 26 is opened, so that the straight pin terminal 42 falls out of the intermittent dropping pipe 22, and the terminal is released to the next station. What is particularly key is that the axial length of the intermittent dropping pipe 22 is equal to the length of the straight pin terminal 42, thereby physically limiting the accommodation of only one terminal at a time, fundamentally eliminating the risk of multiple stacking or jamming, and realizing truly single, intermittent and vertical dropping; ensuring that only one straight pin terminal 42 is accommodated at a time, thereby realizing single, intermittent and vertical dropping of the straight pin terminal 42.

[0025] Further, referring to Figure 2 , in view of the problem that the terminal is easy to interfere with the mechanism, the present scheme ingeniously optimizes the design by utilizing the structural characteristics (pointed end 43) of the terminal itself. Specifically, when only one end of the straight pin terminal 42 is provided with a pointed end 43, the pointed end 43 faces downward during feeding, so that the pressing mechanism guides the pointed end 43 of the straight pin terminal 42 into the corresponding hole of the rubber shell 41, reducing the insertion resistance and improving the centering accuracy. On this basis, the upper surface of the first isolation piece 25 is provided with an inclined guide slope 27, when the first isolation piece 25 is switched from the open state to the closed state, the guide slope 27 contacts the pointed end 43 of the straight pin terminal 42, and during the closing process of the first isolation piece 25, the straight pin terminal 42 is lifted along the axial direction, so that the pointed end 43 is out of the movement path of the first isolation piece 25, thereby avoiding interference between the pointed end 43 and the first isolation piece 25, and ensuring reliable closing of the first isolation piece 25. This design does not require additional driving or complex sensing, but through the cooperation of the shape of the terminal itself and the slope of the mechanism, automatic avoidance can be realized, effectively avoiding mechanism failure or terminal damage caused by pointed end 43 jamming or rigid collision, significantly improving the stability of the feeding process and the reliability of the equipment operation.

[0026] Further, referring to Figure 2To ensure stable action of the isolation pieces and not to damage the integrity of the blanking channel, the pipe wall of the intermittent blanking pipe 22 is provided with an upper opening 23 and a lower opening 24 at positions corresponding to the first isolation piece 25 and the second isolation piece 26, respectively. The first isolation piece 25 passes through the upper opening 23 to close the feeding end when entering the pipe and to open the feeding end when retreating out of the pipe. The second isolation piece 26 passes through the lower opening 24 to close the discharging end when entering the pipe and to open the discharging end when retreating out of the pipe. The first and second isolation pieces 26 pass through the openings to make linear or rotary motion and switch between “extending into the pipe” and “retreating out of the pipe” to realize the opening and closing functions. The intermittent opening and closing control of the feeding end and the discharging end of the intermittent blanking pipe 22 is realized through the alternate motion of the first isolation piece 25 and the second isolation piece 26 at the upper opening 23 and the lower opening 24.

[0027] Further, referring to Figure 3 , the two isolation pieces adopt a circular arc baffle plate 281 structure. The first isolation piece 25 and the second isolation piece 26 are coaxially installed on a transmission shaft 282. The transmission shaft 282 is located outside the intermittent blanking pipe 22. Through the rotation of the transmission shaft 282, the first isolation piece 25 and the second isolation piece 26 are driven to rotate synchronously. When the circular arc baffle plate 281 is turned to enter the upper opening 23 or the lower opening 24 and is embedded inside the intermittent blanking pipe 22, the corresponding feeding end or discharging end is closed. When the circular arc baffle plate 281 is turned to exit the upper opening 23 or the lower opening 24 and is completely located outside the intermittent blanking pipe 22, the corresponding feeding end or discharging end is opened. The phase difference of the first isolation piece 25 and the second isolation piece 26 in the circumferential direction is set to 180° to realize the alternate opening and closing of the feeding end and the discharging end. It should be noted that the circular arc baffle plate 281 is used as the first isolation piece 25 and the second isolation piece 26. Because the baffle plate needs to have sufficient radial size to completely close the opening of the intermittent blanking pipe 22, and the space required for rotation is large, sufficient installation gap must be reserved between adjacent channels to avoid collision or interference of the baffle plates during rotation. Therefore, the vertical feeding part 2 based on the circular arc baffle plate 281 structure is usually suitable for single feeding channel or single column linear arrangement of low-density feeding scenarios.

[0028] In the embodiment, in order to solve the problem that the terminal is easy to be deflected and bent due to the lack of effective guiding and buffering mechanism during the insertion process. Preferably, referring to Figure 5, the workbench 1 is provided with a pressing seat 31 capable of reciprocating between the blanking station 11 and the assembly station 12, a bearing tube 32 is arranged above the pressing seat 31, and a material placing cavity 33 is arranged below the pressing seat 31, the bearing tube 32 penetrates the material placing cavity 33 in the vertical direction, the inner diameter of the bearing tube 32 is consistent with the inner diameter of the blanking tube 21, so as to ensure that the terminal maintains an axial vertical posture during transmission, and the material placing cavity 33 is used for positioning and placing a rubber shell 41, so that a terminal mounting hole of the rubber shell 41 is opposite to the lower end outlet of the bearing tube 32; when the pressing seat 31 moves to the blanking station 11, the upper end of the bearing tube 32 is in butt joint communication with the lower end of the intermittent dropping tube 22, so that a single straight pin terminal 42 falls into the bearing tube 32 from the intermittent dropping tube 22 and is temporarily stored in the bearing tube 32; subsequently, the pressing seat 31 moves to the assembly station 12, the lower pressing component 3 vertically presses the straight pin terminal 42 out of the bearing tube 32 from above and synchronously presses the straight pin terminal 42 into the corresponding hole position of the rubber shell 41, and the assembly of the pin header connector is completed.

[0029] In order to improve production efficiency, the vertical feeding component 2 is arranged in a linear array on the workbench 1, each blanking tube 21, intermittent dropping tube 22 and bearing tube 32 are correspondingly coaxially aligned, and are used for synchronously realizing intermittent dropping of multiple straight pin terminals 42.

[0030] Further, referring to Figure 6 In order to prevent the terminal from falling due to vibration or gravity during the transfer of the pressing seat 31, the bottom end of the bearing tube 32 is provided with a stop block 34, the stop block 34 is arranged in the radial direction of the bearing tube 32 and is arranged in the pipe wall of the bearing tube 32, the stop block 34 is used for extending from the inside of the bearing tube 32 and abutting against the bottom end of the straight pin terminal 42 during the movement of the pressing seat 31 from the blanking station 11 to the assembly station 12, so as to prevent the straight pin terminal 42 from falling due to gravity or vibration during the transfer; during the movement of the pressing seat 31, the stop block 34 extends from the inside of the pipe and abuts against the bottom end of the straight pin terminal 42, and reliable holding is formed. Meanwhile, the top of the bearing tube 32 is provided with a control member, the control member is arranged in the bearing tube 32 in the axial direction of the bearing tube 32, a first inclined surface 391 is formed between the lower end surface of the control member and the upper end surface of the stop block 34, the inclination direction of the first inclined surface 391 is such that when the control member moves downward under the action of external force, the stop block 34 can be pushed to retract radially outward, when the lower pressing component 3 moves downward and presses the control member, the control member moves downward in the axial direction, and the stop block 34 is driven to retract into the pipe wall of the bearing tube 32 through the wedge action of the first inclined surface 391, so as to release the limiting of the straight pin terminal 42, and the straight pin terminal 42 is vertically pressed into the corresponding hole position of the rubber shell 41 under the continuous action of the lower pressing component 3, and the insertion work is completed.

[0031] Further, referring toFigure 6 The bearing tube 32 comprises a bottom member 35 fixed on the pressing seat 31 and an opening and closing member 36 slidingly arranged on the bottom member 35; a second inclined surface 392 is arranged between the upper end surface of the bottom member 35 and the lower end surface of the opening and closing member 36; the stopper 34 is installed on the bottom member 35; the control member comprises a driving member 37 and a transmission member 38; the driving member 37 is slidingly arranged in the bottom member 35 in the axial direction, and the top of the driving member 37 is used for receiving the pressing of the pressing part 3; the transmission member 38 is slidingly arranged in the opening and closing member 36 in the axial direction, and the lower end surface of the opening and closing member 36 is a first inclined surface 391; a third inclined surface 393 is formed between the lower end surface of the driving member 37 and the upper end surface of the transmission member 38, and the third inclined surface 393 is parallel to the second inclined surface 392; Regarding the whole operation process of the bearing tube 32: in the initial state, the third inclined surface 393 is located above the second inclined surface 392, the opening and closing member 36 is in the closed position, and the end surface of the opening and closing member 36 and the bottom member 35 jointly enclose a continuous tubular passage, which is used for providing circumferential limiting for the bottom and side wall of the straight pin terminal 42 in the initial pressing stage, so as to prevent the terminal from being bent due to cantilever force; when the pressing part 3 descends and presses the driving member 37, the driving member 37 drives the transmission member 38 to synchronously descend, and first pushes the stopper 34 to retract through the first inclined surface 391, so as to release the holding of the bottom end of the straight pin terminal 42; in this stage, the opening and closing member 36 still keeps adhering to the bottom member 35, and continues to provide lateral limiting for the terminal, so as to ensure that the terminal vertically enters the hole position of the rubber shell 41; when the driving member 37 continues to descend to the position where the third inclined surface 393 contacts and aligns with the second inclined surface 392, the lower end surface of the pressing part 3 directly acts on the top surface of the opening and closing member 36; then, the pressing part 3 continues to descend and directly pushes the opening and closing member 36 to slide upward in the axial direction, so that the opening and closing member 36 is separated from the bottom member 35, thereby opening the upper passage of the bearing tube 32, and avoiding mechanical interference in the process that the terminal is completely pressed into the rubber shell 41.

[0032] Embodiment two As mentioned above, the arc-shaped baffle plate 281 isolation mechanism adopted by embodiment one, although reliable in structure and smooth in operation, requires a large radial rotation space for the baffle plate, and sufficient installation gaps must be reserved between adjacent feed channels. Therefore, it is usually only applicable to single feed channel or single linear arrangement of low-density feed scenarios. If it needs to face the needs of high-density, multi-column or multi-row synchronous assembly (such as double-row straight pin connector, 2×10P and above specification products), a more compact and dense array isolation driving scheme is needed. For this purpose, the present embodiment provides a vertical feed component 2 based on a push block 283 isolation mechanism, which significantly improves the integration and adaptability of the equipment in multi-channel parallel feeding.

[0033] Specifically, referring to Figure 4 , the first isolation piece 25 and the second isolation piece 26 are both push blocks 283, which are slidingly arranged along the radial direction of the intermittent material falling pipe 22; the push block 283 switches between “extending into the pipe to close the channel” and “retreating outside the pipe to open the channel” through the opening. The key is that the control rod 284 is rotatably installed on the workbench 1, the control rod 284 is located outside the intermittent material falling pipe 22, the rotation of the control rod 284 is located between the first isolation piece 25 and the second isolation piece 26, and the two ends of the control rod 284 are movably connected (through connecting rods, hinge pins or sliding groove structures) to the first isolation piece 25 and the second isolation piece 26 respectively; by driving the control rod 284 to reciprocate within a predetermined angle range through a driving device (such as a stepper motor or a cam), the two push blocks 283 can be synchronously driven to slide in opposite directions along the radial direction.

[0034] The specific working process is as follows: when the first isolation piece 25 slides into the upper opening 23 and embeds into the inside of the intermittent material falling pipe 22, the feeding end is closed, while the second isolation piece 26 slides out of the lower opening 24 to open the discharging end; when the second isolation piece 26 slides into the lower opening 24 and embeds into the inside of the intermittent material falling pipe 22, the discharging end is closed, while the first isolation piece 25 slides out of the upper opening 23 to open the feeding end; thereby realizing the alternate opening and closing of the feeding end and the discharging end of the intermittent material falling pipe 22, and completing the intermittent vertical material falling of a single straight pin terminal 42. This cycle realizes the strict alternate opening and closing of the feeding end and the discharging end, ensuring that only one straight pin terminal 42 completes the material falling each time, achieving high-reliability single-intermittent feeding.

[0035] Since the push block 283 only slides in a short stroke in the radial direction, and the control rod 284 and the connecting rod mechanism are arranged outside the pipe body, the entire isolation assembly occupies very little space in the transverse direction (i.e. the multi-channel arrangement direction), and multiple feed units can be arranged closely side by side without the risk of mutual interference. Therefore, this structure is particularly suitable for synchronous automated assembly of double-row, multi-column or high-pin-count pin connectors, effectively solving the space bottleneck problem in high-density feed scenarios.

[0036] Of course, the above are only typical examples of the present application, and in addition to the above, the present application can have other various embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A production and assembly device for a pin header connector, the pin header connector comprising a plastic shell and straight pin terminals, characterized in that it comprises a workbench having a blanking station and an assembly station on the workbench; a vertical feeding component is arranged on the blanking station, and is used for feeding the straight pin terminals in an axial vertical posture; a pressing component is arranged on the assembly station, and is used for vertically pressing the straight pin terminals into corresponding hole positions of the plastic shell to complete assembly; the vertical feeding component comprises a blanking tube arranged in a vertical direction, and an inner diameter of the blanking tube is matched with the straight pin terminals to constrain the straight pin terminals to maintain an axial vertical posture during blanking, thereby realizing directional vertical feeding of the straight pin terminals.

2. The production and assembly device for the pin header connector according to claim 1, characterized in that an intermittent dropping tube is arranged at a bottom end of the blanking tube, and an inner diameter of the intermittent dropping tube is consistent with that of the blanking tube; a first isolation piece and a second isolation piece are arranged at an inlet end and an outlet end of the intermittent dropping tube, respectively; the first isolation piece and the second isolation piece are configured to be alternately opened and closed: when the first isolation piece is opened and the second isolation piece is closed, a single straight pin terminal enters the intermittent dropping tube from the blanking tube; subsequently, the first isolation piece is closed and the second isolation piece is opened, so that the straight pin terminal drops out of the intermittent dropping tube; an axial length of the intermittent dropping tube is equal to a length of the straight pin terminal, so as to ensure that only one straight pin terminal is accommodated each time, thereby realizing single and intermittent vertical blanking of the straight pin terminals.

3. The production and assembly device for the pin header connector according to claim 2, characterized in that at least one end of the straight pin terminal is provided with a pointed end; when only one end of the straight pin terminal is provided with the pointed end, the pointed end faces downward during feeding, so as to facilitate the pressing mechanism to guide the pointed end of the straight pin terminal into a corresponding hole position of the plastic shell, thereby reducing insertion resistance and improving centering accuracy; an upper surface of the first isolation piece is provided with an inclined guide slope; when the first isolation piece is switched from an open state to a closed state, the guide slope is in contact with the pointed end of the straight pin terminal, and the straight pin terminal is lifted along an axial direction during closing of the first isolation piece, so that the pointed end is separated from a movement path of the first isolation piece, thereby avoiding interference between the pointed end and the first isolation piece, and ensuring reliable closing of the first isolation piece.

4. The production and assembly device for the pin header connector according to claim 3, characterized in that upper and lower openings are respectively formed in a tube wall of the intermittent dropping tube at positions corresponding to the first isolation piece and the second isolation piece; the first isolation piece passes through the upper opening to close the inlet end when entering the tube, and opens the inlet end when retreating out of the tube; the second isolation piece passes through the lower opening to close the outlet end when entering the tube, and opens the outlet end when retreating out of the tube; intermittent opening and closing control of the inlet end and the outlet end of the intermittent dropping tube is realized through the alternating movement of the first isolation piece and the second isolation piece at the upper and lower openings.

5. The production and assembly device for the pin header connector according to claim 4, characterized in that ​ The first and second isolation pieces are circular arc-shaped blocking discs, and the first and second isolation pieces are coaxially installed on a transmission shaft, and the transmission shaft is located outside the intermittent material dropping pipe; Through rotation of the transmission shaft, the first and second isolation pieces are driven to rotate synchronously; when the circular arc-shaped blocking disc rotates to enter the upper opening or the lower opening and is embedded inside the intermittent material dropping pipe, the corresponding feeding end or discharging end is closed; when the circular arc-shaped blocking disc rotates to exit the upper opening or the lower opening and is completely located outside the intermittent material dropping pipe, the corresponding feeding end or discharging end is opened; The phase difference of the first and second isolation pieces in the circumferential direction is 180°, so as to realize the alternating opening and closing of the feeding end and the discharging end.

6. The row pin connector production and assembly device according to claim 4, wherein The first and second isolation pieces are push blocks, and the push blocks are slidingly arranged along the radial direction of the intermittent material dropping pipe; A control rod is rotationally installed on the workbench, the control rod is located outside the intermittent material dropping pipe, the control rod is located between the first and second isolation pieces, and the two ends of the control rod are movably connected with the first and second isolation pieces respectively; Through reciprocating swing of the control rod within a preset angle range, the first and second isolation pieces are driven to synchronously slide reversely along the radial direction; when the first isolation piece slides into the upper opening and is embedded inside the intermittent material dropping pipe, the feeding end is closed, and at the same time, the second isolation piece slides out of the lower opening, and the discharging end is opened; when the second isolation piece slides into the lower opening and is embedded inside the intermittent material dropping pipe, the discharging end is closed, and at the same time, the first isolation piece slides out of the upper opening, and the feeding end is opened; so as to realize the alternating opening and closing of the feeding end and the discharging end of the intermittent material dropping pipe, and complete the intermittent vertical material dropping of a single straight pin terminal.

7. The row pin connector production and assembly device according to any one of claims 2 to 6, wherein A pressing seat is arranged on the workbench and can reciprocate between a material dropping station and an assembly station, a bearing pipe is arranged above the pressing seat, and a material placing cavity is arranged below the pressing seat, the bearing pipe penetrates the material placing cavity in the vertical direction, the inner diameter of the bearing pipe is consistent with the inner diameter of the material dropping pipe, so as to ensure that the terminal maintains an axial vertical posture during transmission, and the material placing cavity is used for positioning a rubber shell, so that a terminal mounting hole of the rubber shell is opposite to the lower end outlet of the bearing pipe; When the pressing seat moves to the material dropping station, the upper end of the bearing pipe is in butt joint communication with the lower end of the intermittent material dropping pipe, so that a single straight pin terminal falls into the bearing pipe through the intermittent material dropping pipe and is temporarily stored in the bearing pipe; Subsequently, the pressing seat moves to the assembly station, the lower pressing component vertically presses the straight pin terminal out of the bearing pipe from above and synchronously presses the straight pin terminal into the corresponding hole position of the rubber shell, and the assembly of the row pin connector is completed.

8. The row pin connector production and assembly device according to claim 7, wherein The vertical feeding components are arranged in a linear array on the workbench, and each of the blanking tube, the intermittent blanking tube and the bearing tube is coaxially aligned and corresponds to each other, so as to realize the intermittent blanking of a single pin of the plurality of straight pin terminals.

9. The equipment for producing and assembling the row pin connector according to claim 7, characterized in that: The bottom end of the bearing tube is provided with a stopper which is slidingly arranged in the tube wall of the bearing tube along the radial direction of the bearing tube; the stopper is used to stretch out from the inner side of the bearing tube and abut against the bottom end of the straight pin terminal during the movement of the pressing seat from the blanking station to the assembling station, so as to prevent the straight pin terminal from falling due to gravity or vibration during the transfer; The top of the bearing tube is provided with a control member which is slidingly arranged in the bearing tube along the axial direction of the bearing tube; the lower end surface of the control member and the upper end surface of the stopper form a first inclined surface which is matched; the inclined direction of the first inclined surface is such that when the control member is moved downward by an external force, the stopper can be pushed to retract radially outward; When the downward pressing component moves downward and presses the control member, the control member moves downward along the axial direction, and through the wedge effect of the first inclined surface, the stopper is driven to retract into the tube wall of the bearing tube, so as to release the limiting of the straight pin terminal, and the straight pin terminal is vertically pressed into the corresponding hole of the rubber shell under the continuous action of the downward pressing component, and the insertion work is completed.

10. The equipment for producing and assembling the row pin connector according to claim 9, characterized in that: The bearing tube comprises a bottom member which is fixed to the pressing seat, and an opening and closing member which is slidingly arranged in the bottom member; a second inclined surface which is matched is arranged between the upper end surface of the bottom member and the lower end surface of the opening and closing member; The stopper is mounted on the bottom member, and the control member comprises a driving member and a transmission member; the driving member is slidingly arranged in the bottom member along the axial direction, and the top of the driving member is used to accept the pressing of the downward pressing component; the transmission member is slidingly arranged in the opening and closing member along the axial direction, and the lower end surface of the opening and closing member is the first inclined surface; A third inclined surface which is matched is formed between the lower end surface of the driving member and the upper end surface of the transmission member, and the third inclined surface is parallel to the second inclined surface; In the initial state, the third inclined surface is located above the second inclined surface, the opening and closing member is in the closed position, and the end surface of the opening and closing member and the bottom member jointly enclose a continuous tubular passage, which is used to provide circumferential limiting for the bottom and the side wall of the straight pin terminal in the initial pressing stage, so as to prevent the terminal from being bent due to cantilever force; When the downward pressing component moves downward and presses the driving member, the driving member drives the transmission member to move downward synchronously, and first pushes the stopper to retract through the first inclined surface, so as to release the holding of the bottom end of the straight pin terminal; in this stage, the opening and closing member still adheres to the bottom member, and continues to provide lateral limiting for the terminal, so as to ensure that the terminal vertically enters the hole of the rubber shell. When the driving member continues to go down to the third inclined surface and the second inclined surface contact and align, the lower end surface of the pressing component directly acts on the top surface of the opening and closing component; then, the pressing component continues to go down, directly pushes the opening and closing component to slide axially upward, makes it separate from the cooperation with the bottom component, thereby opens the upper passage of the carrying pipe, avoids mechanical interference in the process that the terminal is completely pressed into the rubber shell.

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