Spring ejector pin automatic assembly line

Abstract

The utility model relates to the production technical field of connector especially relates to a spring ejector pin automatic assembly line, loading platform, loading device, material conveying device, plug -in device and detection device, loading platform is provided with the material guide groove for guiding the sliding of plastic part, loading device sets up in the one end of material guide groove, and the other end of loading device is connected with vibration feeder, material conveying device sets up in the one side of material guide groove and is used for pushing plastic part and slides along material guide groove, plug -in device sets up in the top of material guide groove for conveying ejector pin and inserts plastic part and forms the connector of fixed material hole, detection device sets up in the one side of material guide groove and is used for detecting the ejector pin state of connector, the utility model discloses through material guide groove orientation, loading device link, material conveying device drive, top plug -in accurate alignment and on -line state detection, the automation of spring ejector pin connector, continuous, high -precision assembly and instant quality monitoring are realized together, and the assembly consistency and product pass rate of connector in the mass production are stably guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of connector manufacturing technology, and in particular to an automatic assembly line for spring ejector pins. Background Technology

[0002] Spring-loaded pin connectors, as common electrical connection components, are widely used in various electronic devices. Their core manufacturing process involves accurately and reliably inserting precision metal pins into pre-drilled holes in the plastic parts to form a stable connection. Traditionally, this insertion process relied mainly on manual operation or semi-automatic equipment. Manual assembly is not only inefficient, labor-intensive, and costly, but more importantly, it is difficult to precisely control the positioning and orientation of the plastic parts, as well as the angle, depth, and force of the pin insertion. This easily leads to assembly defects such as misaligned, skewed, incomplete, or even missed insertion of the pins, resulting in serious quality problems such as poor contact, unstable signal transmission, or premature connector failure.

[0003] Meanwhile, manual visual inspection is inefficient and unreliable, making it difficult to achieve full inspection and resulting in a high risk of missing defective products. It cannot reliably guarantee the assembly consistency and product qualification rate of connectors in mass production, therefore, improvement is necessary. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing an automatic assembly line for spring ejector pins. Through the orientation of the guide groove, the connection of the feeding device, the driving of the conveying device, the precise alignment of the upper insertion, and the online status detection, the automatic, continuous, and high-precision assembly and real-time quality monitoring of spring ejector pin connectors are achieved, ensuring the consistency of connector assembly and the product qualification rate in mass production.

[0005] To achieve the above objectives, this utility model provides an automatic assembly line for spring ejector pins, comprising a feeding platform, a feeding device, a conveying device, an insertion device, and a detection device.

[0006] The loading platform is equipped with a guide groove for guiding the sliding of plastic parts;

[0007] The feeding device is located at one end of the guide trough, and the other end of the feeding device is connected to the vibrating feeder;

[0008] The material conveying device is disposed on one side of the material guide trough and is used to push the plastic part to slide along the material guide trough;

[0009] The insertion device is positioned above the material guide groove to convey the ejector pins to be inserted into the fixing holes of the plastic parts to form a connector.

[0010] The detection device is located on one side of the feed trough and is used to detect the state of the connector pins.

[0011] Preferably, the feeding device includes a pusher platform, a pusher block, and a pusher driver;

[0012] The pusher platform is equipped with a feeding trough, which is perpendicular to the guide trough.

[0013] The feeding trough is provided with an inlet and an outlet respectively. The vibrating feeder is connected to the inlet, and the outlet is located on one side of the guide trough.

[0014] The pusher drives the pusher block to move from the feed port to the discharge port.

[0015] Preferably, the material conveying device includes a material conveying frame, a material conveying slider, a material conveying driver, and a displacement driver;

[0016] The feeding rack is disposed on one side of the guide trough, and the displacement driver drives the feeding rack to move closer to or away from the guide trough;

[0017] The material conveying slider is slidably connected to the material conveying frame. The material conveying slider is provided with multiple material conveying grooves for limiting the plastic parts. The material conveying driver drives the material conveying slider to reciprocate back and forth along the material guide groove.

[0018] Preferably, it further includes an ejector pin posture adjustment assembly mechanism and a clamping device, wherein the ejector pin posture adjustment assembly mechanism is disposed below the insertion device; and the clamping device is disposed on one side of the insertion device;

[0019] The ejector pin posture adjustment assembly mechanism includes a testing table and a vision inspection mechanism;

[0020] The testing station includes a testing conveyor trough and a first testing instrument. The testing conveyor trough is used to receive ejector pins conveyed by the feeder, and the first testing instrument is used to detect whether there are ejector pins in the testing conveyor trough.

[0021] The visual inspection mechanism includes an adjustment platform and a second inspection instrument. The adjustment platform is used to adjust the shape of the pin, and the second inspection instrument is used to detect the state of the pin on the adjustment platform.

[0022] The clamping device includes a clamping driver, a pressure block, and a pressure application driver;

[0023] The pressing driver is located on one side of the guide trough and drives the pressure driver to move up and down;

[0024] The pressure driver drives the pressure block to move horizontally closer to or away from the plastic part.

[0025] Preferably, the insertion device includes a mounting frame and an installation robot, wherein the installation robot is disposed on the mounting frame;

[0026] The installation robot includes a longitudinal driver, a lifting driver, and a gripping claw;

[0027] The longitudinal driver is used to drive the lifting driver to position itself above the detection conveying trough, the adjustment platform and the guide trough. The lifting driver is used to drive the clamping claw to lift and lower. The clamping claw is used to clamp or release the ejector pin.

[0028] Preferably, the detection conveying trough includes a head section and a tail section, and a turning section is provided between the head section and the tail section;

[0029] The adjustment platform includes an adjustment table, an adjustment fixing block, and an adjustment driver;

[0030] The adjustment driver is fixed to the adjustment platform, and the adjustment driver drives the adjustment fixing block to rotate; the adjustment driver is provided with a fixing frame, the adjustment fixing block is provided on the fixing frame, and the adjustment fixing block is provided with fixing holes.

[0031] Preferably, the detection device includes a hole measuring device, a flipping device, a pressure needle adjustment device, and a visual inspection module;

[0032] The hole measuring device is disposed on one side of the feed trough and is used to detect the state of the conductive hole of the ejector pin.

[0033] The feed trough is provided with a gap, and the flipping device is provided in the gap and is used to flip the connector.

[0034] The pressure pin adjustment device is located above the guide groove and is used to flatten the ejector pin of the connector;

[0035] The vision inspection module is located on one side of the feed trough and is used to detect the height of the connector pins.

[0036] Preferably, the hole measuring device includes a hole measuring head and a hole measuring driver;

[0037] The end of the measuring head is provided with a measuring needle, and the measuring head driver drives the measuring head to move closer to or away from the conductive hole of the pin.

[0038] The measuring head has limiting parts on both sides of its end that restrict the connection to the outer wall of the connector.

[0039] Preferably, the flipping device includes a flipping driver and a negative pressure suction seat;

[0040] The negative pressure suction base is used to attach the connector;

[0041] The flip driver drives the negative pressure suction seat to flip 180°;

[0042] The negative pressure suction seat is provided with a limiting groove, and a limiting strip for supporting the connector is provided in the limiting groove.

[0043] Preferably, the pressure pin adjustment device includes a pressure pin driver and a pressure head; the pressure pin driver drives the pressure head to move closer to or further away from the pin of the connector; the pressure pin driver is provided with an adjustment groove, and the pressure head is fixed in the adjustment groove;

[0044] The visual inspection module includes a visual inspection instrument and a supplementary light; the supplementary light is used to project light onto the connector; the visual inspection instrument is used to detect the height of the connector pins.

[0045] The beneficial effects of this utility model are as follows: By guiding the material groove for orientation, connecting the feeding device, driving the material conveying device, accurately aligning the upper insertion, and online status detection, the automated, continuous, high-precision assembly and real-time quality monitoring of the spring pin connector are realized, which can stably ensure the assembly consistency and product qualification rate of the connector in mass production. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of this utility model.

[0047] Figure 2 This is a schematic diagram of the feeding platform and conveying device of this utility model.

[0048] Figure 3 This is a schematic diagram of the feeding device of this utility model.

[0049] Figure 4 This is a schematic diagram of the reversing clamp structure of this utility model.

[0050] Figure 5 This is a schematic diagram of the insertion device, visual inspection mechanism, and clamping device of this utility model.

[0051] Figure 6 This is a schematic diagram of the testing platform structure of this utility model.

[0052] Figure 7 This is a schematic diagram of the detection device of this utility model.

[0053] The reference numerals in the figures include:

[0054] 1. Loading platform; 11. Guide chute; 12. Empty space; 13. Alignment groove;

[0055] 2. Feeding device; 21. Pushing platform; 211. Feeding trough; 212. Feed inlet; 213. Discharge outlet; 214. Guide bar; 22. Push block; 221. Slot; 23. Push driver; 24. Reversing fixture; 241. Reversing driver; 242. Clamping driver; 2421. Clamping finger; 2422. Clamping slot; 243. Lifting actuator;

[0056] 3. Conveying device; 31. Conveying frame; 311. Limiting block; 32. Conveying slider; 321. Conveying trough; 33. Conveying driver; 34. Displacement driver;

[0057] 4. Insertion device; 41. Mounting frame; 42. Mounting robot; 421. Longitudinal actuator; 422. Lifting actuator; 423. Gripping jaws;

[0058] 5. Detection device; 51. Hole measuring device; 511. Hole measuring head; 5111. Measuring stylus; 5112. Limiting part; 512. Hole measuring driver; 52. Flipping device; 521. Flipping driver; 522. Negative pressure suction seat; 5221. Limiting groove; 5222. Limiting strip; 53. Pressure needle adjustment device; 531. Pressure needle driver; 5311. Adjustment slide; 532. Pressure head; 54. Visual inspection module; 541. Visual inspection instrument; 542. Supplemental light;

[0059] 6. Ejector pin posture adjustment assembly mechanism; 61. Inspection table; 611. Inspection conveyor trough; 6111. Head section; 6112. Tail section; 6113. Turning and steering section; 612. First inspection instrument; 62. Vision inspection mechanism; 621. Adjustment platform; 6211. Adjustment table; 62111. Inspection frame; 6212. Adjustment fixing block; 62121. Fixing hole; 6213. Adjustment driver; 6214. Fixing frame; 622. Second inspection instrument;

[0060] 7. Clamping device; 71. Clamping driver; 72. Clamping block; 721. Secondary guide bar; 73. Pressure driver; 731. Guide frame; 732. Guide groove. Detailed Implementation

[0061] The present invention will now be described in detail with reference to the accompanying drawings.

[0062] like Figures 1 to 7 As shown, the present invention discloses an automatic assembly line for spring ejector pins, comprising a loading platform 1, a loading device 2, a conveying device 3, an insertion device 4, and a detection device 5.

[0063] The loading platform 1 is equipped with a guide groove 11 for guiding the sliding of the plastic parts; the guide groove 11 physically constrains and guides the movement path of the plastic parts, ensuring that the plastic parts maintain a predetermined posture and orientation during transportation, providing a basis for subsequent accurate insertion and inspection operations.

[0064] The feeding device 2 is located at one end of the guide trough 11, and the other end of the feeding device 2 is connected to the vibrating feeder. The feeding device 2 acts as a bridge, transferring the plastic parts output from the vibrating feeder to the starting end of the guide trough 11 in an orderly manner. This achieves automated connection between the vibration sorting and the linear conveying path of the plastic parts, ensuring continuous material supply.

[0065] The conveying device 3 is disposed on one side of the guide trough 11 and is used to push the plastic part to slide along the guide trough 11; the conveying device 3 provides active driving force to push the plastic part forward as needed within the guide trough 11. This enables controllable, step-by-step conveying of the plastic part on the assembly line, accurately positioning it to the insertion station and the inspection station.

[0066] The insertion device 4 is positioned above the guide groove 11 to transport ejector pins into the fixing holes of the plastic parts to form connectors. The insertion device 4 is located directly above the plastic part's transport path and performs the action of vertically pressing the ejector pins into the fixing holes of the plastic parts. This achieves automated and precise insertion of the ejector pins and plastic parts, forming the final connector product.

[0067] The detection device 5 is located on one side of the guide groove 11 and is used to detect the state of the connector's ejector pins. After the connector is formed, the detection device 5 performs non-contact or contact inspection of the position or state of the connector ejector pins. This enables online automatic detection of the connector ejector pin state, timely detection of defective products, and ensures a high product qualification rate.

[0068] During operation, the vibrating feeder provides oriented plastic parts, and the feeding device 2 guides the plastic parts into the guide trough 11. The conveying device 3 pushes the plastic parts stepwise within the guide trough 11. When the plastic parts reach the insertion station, the upper insertion device 4 vertically presses the ejector pins into the plastic parts to form connectors. The conveying device 3 continues to push the connectors to the inspection station, where the side inspection device 5 checks the ejector pin status in real time. Finally, the connectors flow out of the guide trough 11 for subsequent processing. The core of the entire process lies in the linear constraint guidance of the guide trough 11, the orderly drive of the conveying device 3, the precise alignment of the upper insertion, and the real-time monitoring of the side inspection.

[0069] like Figure 3 As shown, the feeding device 2 in this embodiment includes a pusher platform 21, a pusher block 22, and a pusher driver 23.

[0070] The pusher platform 21 is equipped with a feeding trough 211, which is perpendicular to the guide trough 11. The feeding trough 211 is provided with an inlet 212 and an outlet 213. A vibrating feeder is connected to the inlet 212, and the outlet 213 is located on one side of the guide trough 11. This achieves the inlet 212 connecting to the vibrating feeder, and the outlet 213 connecting laterally to the guide trough 11. The output direction of the vibrating feeder is aligned with the conveying direction of the guide trough 11 at a certain angle. This precisely defines the inlet and outlet of the turning path, preventing the plastic parts from deviating from the transmission trajectory.

[0071] The pusher 23 drives the pusher block 22 from the feed port 212 to the discharge port 213. The drive drives the pusher block 22 to push it linearly from the feed port 212 to the discharge port 213. By actively pushing mechanically instead of gravity sliding, the plastic parts are reliably transferred to the guide trough 11, eliminating the risk of material jamming.

[0072] The actuator 23 can be a cylinder or a linear motor, which provides a linear reciprocating power source.

[0073] like Figure 3 As shown, the push block 22 in this embodiment is provided with a slot 221 for fixing the plastic part. Specifically, the slot 221 is a recessed structure that matches the shape of the plastic part on the end face of the push block 22 that contacts the plastic part. During the pushing process, the slot 221 limits the plastic part to prevent the plastic part from sliding or rotating relative to the push block 22, and ensures the stability of the plastic part when it is turned and transferred.

[0074] like Figure 3 As shown, in this embodiment, a guide strip 214 is provided on one side of the discharge port 213 to restrict the plastic part from sliding out of the slot 221. Specifically, the guide strip 214 is a linear blocking structure with a protrusion added to one side of the discharge port 213. When the plastic part is pushed to the discharge port 213 by the pusher block 22, the guide strip 214 physically restricts its lateral sliding out of the slot 221, ensuring that the plastic part can only enter the guide groove 11 along a preset trajectory.

[0075] like Figure 2 As shown, in this embodiment, a positioning groove 13 is provided on one side of the guide groove 11 for detecting the position of the plastic part in the guide groove 11. By using the positioning groove 13 as a reference for the position of the plastic part in the guide groove 11, the real-time position of the plastic part in the guide groove 11 can be directly sensed.

[0076] like Figure 4As shown, the reversing clamp 24 in this embodiment includes a reversing driver 241, a clamping driver 242, and a lifting actuator 243. The lifting actuator 243 drives the reversing driver 241 to move up and down, and the reversing driver 241 drives the clamping driver 242 to rotate. The clamping driver 242 is used to clamp the plastic part. The lifting actuator 243 drives the reversing driver 241 to move up and down, thereby controlling the clamping driver 242 to move closer to or away from the plastic part, actively controlling the angle adjustment of the clamping driver 242 to achieve precise rotation of the plastic part. The clamping driver 242 performs clamping or releasing actions, directly contacting the plastic part. It dynamically grips and fixes the plastic part, ensuring that it does not dislodge during rotation.

[0077] The reversing drive 241 is a combination of a servo motor and a planetary reducer, achieving an angle control accuracy of ±.°, suitable for precision steering requirements. The clamping drive 242 is a cylinder gripper or an electric gripper, which performs gripping or releasing actions. The lifting actuator 243 can be a cylinder or a linear motor to drive the reversing drive 241 to lift.

[0078] like Figure 4 As shown, the clamping driver 242 of this embodiment includes a clamping finger 2421, one end of which is provided with a clamping groove 2422. The clamping finger 2421 directly contacts the plastic part, providing a gripping force point and achieving physical fixation of the plastic part. A clamping groove 2422 matching the contour of the plastic part is formed on the end face of the clamping finger. The clamping groove 2422 encloses key parts of the plastic part, eliminating the risk of slippage or deflection of the plastic part during rotation.

[0079] like Figure 2 As shown, the material conveying device 3 in this embodiment includes a material conveying frame 31, a material conveying slider 32, and a material conveying driver 33.

[0080] The feeding rack 31 is disposed on one side of the guide trough 11, and the displacement driver 34 drives the feeding rack 31 to move closer to or away from the guide trough 11;

[0081] The material conveying slider 32 is slidably connected to the material conveying frame 31. The material conveying slider 32 is provided with a plurality of material conveying grooves 321 for limiting the plastic parts. The material conveying driver 33 drives the material conveying slider 32 to move back and forth along the material guide groove 11.

[0082] Specifically, the displacement driver 34 drives the material conveyor 31 to approach the guide groove 11, so that the plastic part is stuck in the material conveyor 321, which makes it easier to push the plastic part; when the displacement driver 34 drives the material conveyor 31 away from the guide groove 11, the material conveyor 321 is separated from the plastic part.

[0083] The material conveyor frame 31 provides a fixed support base and positions the conveying trajectory reference. It ensures that the movement of the material conveyor slider 32 is parallel to the guide chute 11 to avoid deviation in the thrust direction.

[0084] Multiple independent feed troughs (321) can carry multiple plastic parts at a time. The plastic parts are isolated at different times to prevent collisions or stacking during transport.

[0085] The feed driver 33 linearly drives the slider to reciprocate along the guide chute 11. This actively controls the step-by-step advancement of the plastic part, replacing continuous friction conveying and eliminating the risk of slippage.

[0086] The material conveying driver 33 is a combination of a stepper motor and a ball screw, which enables the material conveying driver 33 to precisely control and drive the material conveying slider 32 to convey a distance along the guide groove 11.

[0087] like Figure 2 As shown, the material feeder 31 in this embodiment is provided with limiting blocks 311 for restricting the sliding range of the material feeder slider 32. Specifically, the limiting blocks 311 are physical blocking structures provided at both ends of the material feeder 31, constraining the movement range of the material feeder slider 32. This precisely controls the reciprocating stroke of the slider, preventing overtravel impacts that could cause displacement of the plastic parts or damage to the equipment.

[0088] like Figure 1 , Figure 5 and Figure 6 As shown, this embodiment also includes a pin posture adjustment assembly mechanism 6 and a clamping device 7. The pin posture adjustment assembly mechanism 6 is disposed below the insertion device 4; the clamping device 7 is disposed on one side of the insertion device 4.

[0089] The ejector pin posture adjustment assembly mechanism 6 intervenes and adjusts the posture of the ejector pin before insertion. This ensures that the ejector pin enters the fixing hole of the plastic part with the correct posture (such as verticality and angle), improving insertion accuracy and success rate, and reducing insertion defects (such as misalignment or slant) caused by incorrect ejector pin posture. The clamping device 7 is located next to the insertion station. After the ejector pin is inserted into the plastic part, it applies downward pressure to ensure that the ejector pin is accurately inserted into the fixing hole and reaches the predetermined depth.

[0090] like Figure 5 and Figure 6 As shown, the ejector pin posture adjustment assembly mechanism 6 includes a detection table 61 and a vision inspection mechanism 62.

[0091] The detection station 61 includes a detection conveying trough 611 and a first detector 612. The detection conveying trough 611 receives ejector pins conveyed by the feeder, and the first detector 612 detects whether ejector pins are present in the detection conveying trough 611. The detection conveying trough 611 receives ejector pins output from the feeder (such as a vibratory feeder), serving as a transfer buffer area. This prevents ejector pins from directly entering the detection station and causing congestion, ensuring process continuity. The first detector 612 monitors the presence status of ejector pins in the detection conveying trough 611, triggering a conveying robot's action signal to avoid empty grabbing or missed grabbing, improving process reliability. The first detector 612 can be a photoelectric sensor, fiber optic sensor, proximity sensor, or microswitch.

[0092] The visual inspection mechanism 62 includes an adjustment platform 621 and a second inspection instrument 622. The adjustment platform 621 is used to adjust the shape of the ejector pin, and the second inspection instrument 622 is used to detect the state of the ejector pin on the adjustment platform 621. The adjustment platform 621 physically adjusts the posture of the ejector pin (e.g., by rotation) to align the conductive hole with the target direction. This solves the problem of low efficiency in manual adjustment and ensures a uniform orientation of the conductive hole of the ejector pin before insertion into the plastic part. The second inspection instrument 622 detects whether the posture of the adjusted ejector pin meets the requirements (e.g., the orientation of the conductive hole). This verifies the adjustment results, prevents incorrect postures from entering the assembly process, and ensures subsequent assembly accuracy and conductivity.

[0093] like Figure 5 As shown, the clamping device 7 in this embodiment includes a clamping driver 71, a pressure block 72, and a pressure application driver 73.

[0094] The clamping driver 71 is located on one side of the guide groove 11 and drives the pressure driver 73 to rise and fall; the clamping driver 71 enables the overall height adjustment of the clamping mechanism, adapts to plastic parts of different thicknesses, and precisely controls the clamping stroke.

[0095] The pressure driver 73 drives the pressure block 72 to move horizontally closer to or further away from the plastic part. By controlling the precise micro-feeding of the pressure block 72 through the pressure driver 73, the horizontal distance between the pressure block 72 and the ejector pin is precisely controlled, which facilitates the clamping of the ejector pin.

[0096] The clamping actuator 71 is a servo electric cylinder or a pneumatic lifting column, which drives the pressure actuator 73 to move up and down. The pressure actuator 73 is a piezoelectric ceramic micro-motion stage or a ball screw module, which drives the pressure block 72 to move horizontally closer to or away from the plastic part.

[0097] like Figure 5As shown, the pressure actuator 73 in this embodiment is provided with a guide frame 731, and the guide frame 731 is provided with a guide groove 732 that is slidably connected to the pressure block 72. The guide groove 732 restricts the degree of freedom of movement of the pressure block 72, making it easier for the pressure actuator 73 to drive the pressure block 72 to move horizontally closer to or away from the plastic part.

[0098] like Figure 5 As shown, in this embodiment, the pressure block 72 is provided with auxiliary guide strips 721 on both sides. The auxiliary guide strips 721 are slidably connected to the guide groove 732, so that the pressure block 72 moves more smoothly when it approaches or moves away from the plastic part.

[0099] like Figure 5 As shown, the insertion device 4 in this embodiment includes a conveyor frame and an installation robot 42, wherein the installation robot 42 is disposed on the conveyor frame;

[0100] The installation robot 42 includes a longitudinal driver 421, a lifting driver 422, and a gripper 423;

[0101] The longitudinal driver 421 is used to drive the lifting driver 422 to be positioned above the detection conveying trough 611, the adjustment platform 621 and the guide trough 11. The lifting driver 422 is used to drive the clamping claw 423 to rise and fall. The clamping claw 423 is used to clamp or release the ejector pin.

[0102] Specifically, the conveyor frame supports the rigid frame of the installation robot 42, providing a reference for its motion trajectory. This ensures the overall structural stability of the installation robot 42 and resists inertial deviations during motion.

[0103] The drive assembly of the longitudinal driver 421 moves horizontally (e.g., along the X-axis), positioning the lifting driver 422 above the detection conveyor 611, the adjustment platform 621, and the guide chute 11. This replaces manual positioning and shortens the ejector pin transfer path time.

[0104] The lifting driver 422 drives the clamping jaws 423 to move vertically (e.g., along the Z-axis) and lift them up and down, controlling the pick-up and put-down height. It adapts to different workstation heights and is compatible with scenarios where the inspection conveyor 611 picks up materials and the adjustment platform 621 inserts them, as well as scenarios where the adjusted ejector pins are inserted into plastic parts.

[0105] The gripper 423 is an end effector that secures the ejector pin by mechanical clamping or negative pressure adsorption. This prevents scratches on the ejector pin surface and ensures its electrical conductivity.

[0106] The longitudinal actuator 421 is a drive module of a servo motor and ball screw or a pneumatic slide, with a ball screw transmission positioning accuracy of ±0.05mm; the pneumatic slide speed is ≥1m / s (suitable for high-speed production lines). The lifting actuator 422 is a miniature electric cylinder or a compact pneumatic cylinder, with an electric cylinder thrust ≥200N (for heavy-duty ejector pins) and a pneumatic cylinder stroke of 50~100mm (suitable for common plastic part thicknesses). The clamping jaws 423 are pneumatic two-finger flat clamps or vacuum nozzle assemblies. The pneumatic two-finger flat clamps are suitable for irregularly shaped ejector pins (force control adjustable from 5~20N); the vacuum nozzle assemblies adsorb and transfer multiple ejector pins synchronously.

[0107] like Figure 6 As shown, the detection conveying trough 611 in this embodiment includes a head section 6111 and a tail section 6112, and a turning section 6113 is provided between the head section 6111 and the tail section 6112.

[0108] Specifically, the head section 6111 is a flared buffer guide rail. By widening the inlet section of the detection conveying trough 611, the detection conveying trough 611 can accommodate the high-speed discharge of the vibratory plate. The head section 6111 is lined with silicone to reduce the noise of the ejector pin collision.

[0109] The turning section 6113 is a 90° arc curve. The inner wall of the turning section 6113 is equipped with a lateral pressure roller. The turning section 6113 constrains the path of the ejector pin. The lateral pressure roller applies slight pressure to the ejector pin to prevent it from popping out when it turns.

[0110] The tail section 6112 is a linear precision guide rail. The width of the tail section 6112 matches the size of the ejector pin (±0.1mm tolerance), ensuring that the ejector pin moves linearly to the detection position without deflection.

[0111] like Figure 5 As shown, the adjustment platform 621 in this embodiment includes an adjustment table 6211, an adjustment fixing block 6212, and an adjustment driver 6213. The adjustment driver 6213 is a stepper motor or a servo rotary cylinder. The stepper motor precisely controls the rotation angle (±0.1°), and the cylinder responds quickly (completes 180° rotation within 0.5 seconds).

[0112] The adjustment driver 6213 is fixed to the adjustment platform 6211, and the adjustment driver 6213 drives the adjustment fixing block 6212 to rotate. Specifically, the adjustment platform 6211 serves as a mounting base, supporting the adjustment driver 6213 and the adjustment fixing block 6212. The adjustment platform 6211 provides stable mechanical support, preventing vibration and displacement.

[0113] The adjusting fixing block 6212 rotates in sync with the adjusting driver 6213. The adjusting fixing block 6212 physically fixes the ejector pin and transmits rotational force to the ejector pin, achieving precise angle control.

[0114] Adjust the output rotational power of the driver 6213 to drive the adjustment fixing block 6212 to rotate. Actively correct the ejector pin direction, and align the conductive hole of the ejector pin with the target angle (such as 0° or 180°) through controllable rotation.

[0115] like Figure 5 As shown, the adjustment driver 6213 in this embodiment is provided with a fixing frame 6214, the adjustment fixing block 6212 is provided on the fixing frame 6214, and the adjustment fixing block 6212 is provided with a fixing hole 62121.

[0116] Specifically, the fixing bracket 6214 serves as the connection structure between the adjustment driver 6213 and the adjustment fixing block 6212, providing mechanical support and a positioning reference. It prevents relative displacement between the adjustment driver 6213 and the adjustment fixing block 6212 during adjustment, ensuring stable rotational accuracy.

[0117] A fixing hole 62121 is formed on the adjusting fixing block 6212 to accommodate or lock the ejector pin. The fixing hole 62121 constrains and fixes the ejector pin to prevent slippage or displacement during rotation.

[0118] like Figure 5 As shown, the second detector 622 in this embodiment includes two detectors, which are arranged opposite to each other on the adjustment platform 621.

[0119] Specifically, two second detectors 622 synchronously detect the posture of the ejector pin (such as the orientation of the conductive hole) from opposite directions. The dual-view coverage of the ejector pin's full circumference avoids misjudgments caused by occlusion during single-sided detection.

[0120] The second detector 622 is positioned opposite the adjustment platform 621, symmetrically distributed on both sides of the adjustment platform 621 (e.g., in the 0° and 180° directions). By comparing the bidirectional data from the second detector 622, the consistency of the ejector pin posture (e.g., whether the conductive holes are concentrically aligned) is verified.

[0121] Both second detectors 622 are either through-beam laser sensor arrays or dual-sided industrial cameras. If the second detector 622 is a laser sensor, the hole position is determined by blocking the optical path; if the second detector 622 is a dual-sided industrial camera, the spatial attitude of the pin is reconstructed through 3D point cloud (accuracy ±0.1mm).

[0122] like Figure 5 As shown, in this embodiment, the adjustment platform 6211 is provided with a detection frame 62111, and two second detectors 622 are arranged opposite to each other on the detection frame 62111. The second detectors 622 are fixed to the adjustment platform 6211 via the detection frame 62111.

[0123] like Figure 7As shown, the detection device 5 in this embodiment includes a hole measuring device 51, a flipping device 52, a pressure needle adjustment device 53, and a visual inspection module 54.

[0124] The hole measuring device 51 is disposed on one side of the guide groove 11 and is used to detect the state of the conductive hole of the ejector pin. By detecting the state of the conductive hole of the ejector pin during the sliding process of the connector, the device 51 can identify abnormalities in the conductive hole, such as blockage or whether the hole position is in the preset position, thereby realizing the pre-screening of defective products.

[0125] The guide groove 11 is provided with a gap 12, and the flipping device 52 is provided in the gap 12 and used to flip the connector. The mechanical flipping mechanism is set in the gap 12 of the guide groove 11 to automatically complete the flipping of the connector, meet the double-sided inspection requirements, and eliminate the need for manual intervention.

[0126] The pressure pin adjustment device 53 is disposed above the guide groove 11 to flatten the connector's ejector pins; it applies downward pressure to the connector's ejector pins above the guide groove 11. This flattens the ejector pin warping, ensuring the ejector pins are in a flat state and providing a reference for height detection.

[0127] The vision inspection module 54 is disposed on one side of the guide groove 11 and is used to detect the height of the connector pins. During the connector sliding process, an image of the pins is acquired through optical imaging. This non-contact, precise measurement of the pin height ensures both accuracy and objectivity in the inspection.

[0128] During operation, the connector is placed in the guide groove 11 of the loading platform 1, and the groove structure guides the connector to slide along a fixed path. The conveying device 3 applies a lateral thrust to the connector in the guide groove 11, driving the connector to slide continuously along the groove. During the sliding process, the hole measuring device 51 detects the alignment or blockage status of the conductive holes of the ejector pins in real time from the side of the guide groove 11, which facilitates the marking of potential defects. When the connector slides to the empty position 12 of the guide groove 11, the flipping device 52 grabs the connector and completes the 30° flip, and then accurately puts the connector back into the guide groove 11 for continued conveying. After flipping, the pressure pin adjustment device 53 presses down from above the guide groove 11 to apply controllable pressure to the ejector pin and eliminate warping deformation caused by transportation. After calibration, the connector slides to the end, and the vision inspection module 54 measures the height of the ejector pin non-contactly through optical imaging and outputs accurate data.

[0129] like Figure 7 As shown, the hole measuring device 51 in this embodiment includes a hole measuring head 511 and a hole measuring driver 512.

[0130] The end of the measuring head 511 is provided with a probe 5111, and the measuring head driver 512 drives the measuring head 511 to approach or move away from the conductive hole of the ejector pin. The probe 5111 at the end of the measuring head 511 directly inserts into or contacts the interior of the conductive hole. Precise detection of the alignment or blockage state of the conductive hole is achieved through physical contact. The measuring head driver 512 drives the measuring head 511 and the probe 5111 to approach or move away from the conductive hole along a straight trajectory. The probe 5111 is automatically controlled to perform insertion detection and reset actions, thus automating the detection process.

[0131] The hole measuring driver 512 can be a combination of a linear cylinder, a servo motor and a ball screw, or a piezoelectric ceramic driver.

[0132] like Figure 7 As shown, the probe head 511 in this embodiment has limiting portions 5112 on both sides of its end. The limiting portions 5112 restrict the probe from being inserted into the outer wall of the connector, which facilitates the detection of the probe and prevents the probe 5111 from being over-inserted into the conductive hole and causing damage to the probe, or from being under-inserted and causing detection failure, thus ensuring consistent detection depth.

[0133] The limiting part 5112 is a shoulder stop, an adjustable screw limiter, or an elastic buffer limit post.

[0134] like Figure 7 As shown, the flipping device 52 in this embodiment includes a flipping driver 521 and a negative pressure suction seat 522;

[0135] The negative pressure suction holder 522 is used to adsorb the connector; the negative pressure suction holder 522 uses the adsorption force generated by negative pressure to grasp the surface of the connector, so as to achieve stable gripping without mechanical clamping damage.

[0136] The flipping driver 521 drives the negative pressure suction seat 522° to flip. This precisely completes the double-sided interchange of plastic parts, ensuring consistent positioning after flipping. It solves the core problems of low efficiency and easy drop during manual flipping.

[0137] Among them, the tilting actuator 521 is a rocker arm cylinder or a rotary cylinder.

[0138] like Figure 7 As shown, the negative pressure suction base 522 of this embodiment is provided with a limiting groove 5221, and a limiting strip 5222 for supporting the connector is provided in the limiting groove 5221. The limiting groove 5221 with a groove structure is formed on the surface of the negative pressure suction base 522, which limits the connector within the negative pressure suction base 522 and provides a preliminary positioning reference. The limiting groove 5221 also facilitates the docking of the negative pressure suction base 522 with the guide groove 11. The protruding strip-shaped limiting strip 5222 in the limiting groove 5221 directly supports the connector, which on the one hand isolates the surface of the suction base to avoid clogging of the negative pressure hole; on the other hand, it prevents the bottom surface of the connector from being too tightly attached to the suction base, which would make it difficult to pick up and put down.

[0139] like Figure 7 As shown, the pressure needle adjustment device 53 in this embodiment includes a pressure needle driver 531 and a pressure head 532.

[0140] The pressure pin driver 531 drives the pressure head 532 to move closer to or further away from the ejector pin of the connector. The pressure head 532 directly contacts the elastic component of the ejector pin, transmitting the downward pressure from the pressure pin driver 531 to the ejector pin to achieve physical flattening. The pressure pin driver 531 drives the pressure head 532 to perform vertical linear movement, controlling the pressure head 532 to precisely approach or move away from the ejector pin to reset, achieving automatic leveling.

[0141] The needle actuator 531 can be a servo electric cylinder or a linear cylinder.

[0142] like Figure 7 As shown, the pressure needle driver 531 of this embodiment is provided with an adjustment groove 5311, and the pressure head 532 is fixed in the adjustment groove 5311. The driver body is provided with an elongated adjustment groove 5311. The adjustment groove 5311 provides a physical track for the horizontal movement of the pressure head 532, making the position of the pressure head 532 adjustable.

[0143] like Figure 7 As shown, the visual inspection module 54 in this embodiment includes a visual inspection instrument 541 and a supplementary light 542.

[0144] The supplementary light 542 is used to project light onto the connector; the supplementary light 542 actively projects light onto the connector surface and the ejector pin area. This enhances the clarity and contrast of the visual image and eliminates ambient light interference.

[0145] The vision inspection instrument 541 is used to detect the height of the connector pins. The vision inspection instrument 541 captures images of the connector pin area. Through image analysis, the pin height is accurately measured, achieving non-contact inspection.

[0146] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A spring-needle automatic assembly line, characterized by, It includes a loading platform (1), a loading device (2), a conveying device (3), an inserting device (4), and a detection device (5); The loading platform (1) is provided with a guide groove (11) for guiding the plastic parts to slide. The feeding device (2) is located at one end of the guide trough (11), and the other end of the feeding device (2) is connected to the vibrating feeder; The material conveying device (3) is disposed on one side of the material guide groove (11) and is used to push the plastic part to slide along the material guide groove (11); The insertion device (4) is positioned above the guide groove (11) to convey the ejector pin into the solid hole of the plastic part to form a connector. The detection device (5) is located on one side of the feed trough (11) and is used to detect the pin status of the connector.

2. The spring ejector pin automatic assembly line of claim 1, wherein, The feeding device (2) includes a pusher table (21), a pusher block (22), and a pusher driver (23); The pusher platform (21) is provided with a feeding trough (211), which is perpendicular to the guide trough (11); The feeding trough (211) is provided with a feed inlet (212) and a discharge outlet (213). The vibrating feeder is connected to the feed inlet (212), and the discharge outlet (213) is located on one side of the guide trough (11). The pusher (23) drives the pusher (22) to push from the feed port (212) to the discharge port (213).

3. The spring ejector pin automatic assembly line of claim 1, wherein, The material conveying device (3) includes a material conveying frame (31), a material conveying slider (32), a material conveying driver (33), and a displacement driver (34). The feeding rack (31) is located on one side of the guide trough (11), and the displacement driver (34) drives the feeding rack (31) to move closer to or away from the guide trough (11). The material conveying slider (32) is slidably connected to the material conveying frame (31). The material conveying slider (32) is provided with a plurality of material conveying grooves (321) for limiting the plastic parts. The material conveying driver (33) drives the material conveying slider (32) to move back and forth along the material guide groove (11).

4. The spring ejector pin automatic assembly line of claim 1, wherein, It also includes a pin posture adjustment assembly mechanism (6) and a clamping device (7), wherein the pin posture adjustment assembly mechanism (6) is disposed below the insertion device (4); and the clamping device (7) is disposed on one side of the insertion device (4). The ejector pin posture adjustment assembly mechanism (6) includes a testing table (61) and a vision testing mechanism (62). The testing station (61) includes a testing conveying trough (611) and a first testing instrument (612). The testing conveying trough (611) is used to receive the ejector pins conveyed by the feeder, and the first testing instrument (612) is used to detect whether there are ejector pins in the testing conveying trough (611). The visual inspection mechanism (62) includes an adjustment platform (621) and a second detector (622). The adjustment platform (621) is used to adjust the shape of the pin, and the second detector (622) is used to detect the state of the pin on the adjustment platform (621). The clamping device (7) includes a clamping driver (71), a clamping block (72), and a pressure applying driver (73); The pressing drive (71) is disposed on one side of the guide trough (11) and drives the pressure drive (73) to move up and down; The pressure driver (73) drives the pressure block (72) to move horizontally closer to or away from the plastic part.

5. The spring ejector pin automatic assembly line of claim 4, wherein, The insertion device (4) includes a mounting frame (41) and an installation robot (42), wherein the installation robot (42) is disposed on the mounting frame (41). The installation robot (42) includes a longitudinal driver (421), a lifting driver (422), and a gripper (423). The longitudinal driver (421) is used to drive the lifting driver (422) to be positioned above the detection conveying trough (611), the adjustment platform (621) and the guide trough (11). The lifting driver (422) is used to drive the clamping claw (423) to rise and fall. The clamping claw (423) is used to clamp or release the ejector pin.

6. The automatic assembly line for spring ejector pins according to claim 4, characterized in that, The detection conveying trough (611) includes a head section (6111) and a tail section (6112), and a turning section (6113) is provided between the head section (6111) and the tail section (6112). The adjustment platform (621) includes an adjustment table (6211), an adjustment fixing block (6212), and an adjustment driver (6213). The adjustment driver (6213) is fixed to the adjustment platform (6211), and the adjustment driver (6213) drives the adjustment fixing block (6212) to rotate; the adjustment driver (6213) is provided with a fixing frame (6214), the adjustment fixing block (6212) is provided on the fixing frame (6214), and the adjustment fixing block (6212) is provided with a fixing hole (62121).

7. The spring ejector pin automatic assembly line of claim 1, wherein, The detection device (5) includes a hole measuring device (51), a flipping device (52), a pressure needle adjustment device (53), and a vision detection module (54). The hole measuring device (51) is disposed on one side of the feed trough (11) and is used to detect the state of the conductive hole of the ejector pin. The guide groove (11) is provided with a vacancy (12), and the flipping device (52) is provided in the vacancy (12) and is used to flip the connector. The pressure pin adjustment device (53) is located above the guide groove (11) and is used to flatten the pin of the connector; The vision inspection module (54) is located on one side of the guide groove (11) and is used to detect the height of the connector pin.

8. The spring ejector pin automatic assembly line of claim 7, wherein, The hole measuring device (51) includes a hole measuring head (511) and a hole measuring driver (512). The end of the measuring head (511) is provided with a measuring needle (5111), and the measuring driver (512) drives the measuring head (511) to approach or move away from the conductive hole of the needle. The measuring head (511) has limiting parts (5112) on both sides of its end that restrict the connection to the outer wall of the connector.

9. The spring ejector pin automatic assembly line of claim 7, wherein, The flipping device (52) includes a flipping driver (521) and a negative pressure suction seat (522). The negative pressure suction base (522) is used to attach the connector; The flip driver (521) drives the negative pressure suction seat (522) to flip 180°; The negative pressure suction seat (522) is provided with a limiting groove (5221), and a limiting strip (5222) for carrying the connector is provided in the limiting groove (5221).

10. The spring ejector pin automatic assembly line of claim 7, wherein, The pressure pin adjustment device (53) includes a pressure pin driver (531) and a pressure head (532); the pressure pin driver (531) drives the pressure head (532) to move closer to or further away from the pin of the connector; the pressure pin driver (531) is provided with an adjustment groove (5311), and the pressure head (532) is fixed in the adjustment groove (5311); The visual inspection module (54) includes a visual inspection instrument (541) and a supplementary light (542); the supplementary light (542) is used to project light onto the connector; the visual inspection instrument (541) is used to detect the height of the connector pins.

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