Automatic assembly line for spring ejector pins

Abstract

The invention relates to the technical field of connector production, in particular to an automatic spring ejector pin assembly line which comprises a feeding table, a feeding device, a conveying device, an inserting device and a detecting device. The feeding table is provided with a guide groove used for guiding the plastic parts to slide. The feeding device is arranged at one end of the guide groove, and the other end of the feeding device is connected with the vibration feeder. The conveying device is arranged on one side of the guide groove and used for pushing the plastic parts to slide along the guide groove. The plug-in mounting device is arranged above the material guide groove and is used for conveying the ejector pins to be inserted into the material fixing holes of the plastic parts to form a connector; the detection device is arranged on one side of the guide groove and used for detecting the ejector pin state of the connector. Through orientation of the guide groove, connection of the feeding device, driving of the conveying device, accurate alignment of upper insertion and online state detection, automatic, continuous and high-precision assembly and instant quality monitoring of the spring ejector pin connector are jointly achieved, and the assembly consistency and the product percent of pass of the connector in mass production are stably guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of connector production, in particular to an automatic assembly line for spring ejector pins. Background Art

[0002] As a common electrical connection component, spring ejector connectors are widely used in various electronic devices. The core manufacturing process is to accurately and reliably insert precision metal ejectors into the solid material holes reserved in plastic parts to form a stable connection. Traditionally, this insertion process mainly relies on manual operation or semi-automatic equipment. Manual assembly is not only inefficient, labor-intensive, and costly, but more importantly, it is difficult to accurately control the positioning and posture of the plastic parts, as well as the angle, depth, and force of the ejector insertion. This can easily lead to assembly defects such as the ejector being inserted off-center, inserted at an angle, not inserted in place, or even missing, resulting in serious quality problems such as poor contact, unstable signal transmission, or premature failure of the connector.

[0003] At the same time, manual visual inspection is inefficient and unreliable, making it difficult to achieve full inspection and raising the risk of missed defective products. This makes it impossible to consistently guarantee connector assembly consistency and product qualification rates in mass production, necessitating improvements. Summary of the Invention

[0004] The purpose of the present invention is to address the shortcomings of the existing technology and provide an automatic assembly line for spring ejector pins. Through the orientation of the guide trough, the connection of the feeding device, the driving of the feeding device, the precise positioning of the upper insertion and the online status detection, the automatic, continuous, high-precision assembly and real-time quality monitoring of spring ejector pin connectors are achieved, thereby stably ensuring the assembly consistency and product qualification rate of the connectors in large-scale production.

[0005] To achieve the above-mentioned purpose, the present invention provides an automatic assembly line for spring ejectors, comprising a loading platform, a loading device, a feeding device, an inserting device, and a detecting device; The loading platform is provided with a guide trough for guiding the sliding of the plastic parts; The feeding device is arranged at one end of the guide trough, and the other end of the feeding device is connected to the vibrating feeder; The feeding device is arranged on one side of the guide trough and is used to push the plastic part to slide along the guide trough; The insertion device is arranged above the material guide groove and is used to convey the ejector pin and insert it into the solid material hole of the plastic part to form a connector; The detection device is arranged on one side of the material guide trough and is used to detect the state of the ejector pin of the connector.

[0006] Preferably, the loading device includes a pushing platform, a pushing block and a pushing driver; The pushing platform is provided with a feeding trough, and the feeding trough is arranged perpendicularly to the material guide trough; The feeding trough is respectively provided with a feeding port and a discharging port, the vibrating feeder is connected to the feeding port, and the discharging port is provided on one side of the guide trough; The pushing driver drives the pushing block from the feed port to the discharge port.

[0007] Preferably, the feeding device includes a feeding frame, a feeding slide, a feeding driver and a displacement driver; The material conveying frame is arranged on one side of the material guide trough, and the displacement driver drives the material conveying frame to approach or move away from the material guide trough; The feeding slide block is slidably connected to the feeding frame. The feeding slide block is provided with a plurality of feeding grooves for limiting plastic parts. The feeding driver drives the feeding slide block to move back and forth along the guide grooves.

[0008] Preferably, it further comprises an ejector posture adjustment assembly mechanism and a pressing device, wherein the ejector posture adjustment assembly mechanism is arranged below the insertion device; the pressing device is arranged on one side of the insertion device; The ejector posture adjustment assembly mechanism includes a detection platform and a visual detection mechanism; The inspection platform includes an inspection conveying trough and a first detector, wherein the inspection conveying trough is used to receive the ejector delivered by the loader, and the first detector is used to detect whether there is an ejector in the inspection conveying trough; The visual inspection mechanism includes an adjustment platform and a second detector, wherein the adjustment platform is used to adjust the shape of the ejector pin and the second detector is used to detect the state of the ejector pin on the adjustment platform; The pressing device includes a pressing driver, a pressing block and a pressure driver; The pressing driver is arranged on one side of the material guide trough and drives the pressing driver to move up and down; The pressure driver drives the pressing block to move horizontally toward or away from the plastic part.

[0009] Preferably, the insertion device includes a mounting frame and an installation manipulator, and the installation manipulator is arranged on the mounting frame; The installation robot includes a longitudinal drive, a lifting drive and a clamping claw; The longitudinal driver is used to drive the lifting driver to be positioned above the detection conveying trough, the adjustment platform and the material guide trough. The lifting driver is used to drive the clamping claw to rise and fall. The clamping claw is used to clamp or release the ejector pin.

[0010] 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; The adjustment platform includes an adjustment table, an adjustment fixing block and an adjustment driver; 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 a fixing hole.

[0011] Preferably, the detection device includes a hole measuring device, a flipping device, a pressure needle adjustment device and a visual detection module; The hole measuring device is arranged on one side of the material guide trough and is used to detect the conductive hole status of the ejector pin; The material guide trough is provided with a vacant position, and the turning device is provided at the vacant position and is used to turn the connector over; The pressure pin adjustment device is arranged above the material guide groove and is used to flatten the ejector pin of the connector; The visual inspection module is arranged on one side of the material guide trough and is used to detect the height of the connector ejector pin.

[0012] Preferably, the hole measuring device includes a hole measuring head and a hole measuring driver; The end of the hole measuring head is provided with a measuring needle, and the hole measuring driver drives the hole measuring head to approach or move away from the conductive hole of the ejector pin; Limiting parts for limiting the outer wall of the connector are provided on both sides of the end of the hole measuring head.

[0013] Preferably, the flipping device includes a flipping driver and a negative pressure suction seat; The negative pressure suction seat is used to adsorb the connector; The flip driver drives the negative pressure suction seat to flip 180°; The negative pressure suction seat is provided with a limiting groove, and a limiting bar for supporting the connector is provided in the limiting groove.

[0014] Preferably, the pressure needle adjustment device includes a pressure needle driver and a pressure head; the pressure needle driver drives the pressure head to move closer to or away from the ejector pin of the connector; the pressure needle driver is provided with an adjustment slot, and the pressure head is fixed in the adjustment slot; The visual inspection module includes a visual inspection instrument and a fill light; the fill light is used to project light to the connector; and the visual inspection instrument is used to detect the height of the connector ejector pin.

[0015] The beneficial effects of the present invention are as follows: through the orientation of the guide trough, the connection of the feeding device, the driving of the feeding device, the precise alignment of the upper insertion and the online status detection, the automation, continuity, high-precision assembly and real-time quality monitoring of the spring ejector connector are realized, and the assembly consistency and product qualification rate of the connector in mass production are stably guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the loading platform and feeding device of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the feeding device of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the reversing fixture of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the insertion device, visual detection mechanism and pressing device of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the detection platform of the present invention.

[0022] Figure 7 Schematic diagram of the structure of the detection device of the present invention.

[0023] Reference numerals include: 1. Loading table; 11. Material guide trough; 12. Vacant position; 13. Alignment slot; 2. Loading device; 21. Pushing platform; 211. Loading chute; 212. Feed port; 213. Discharge port; 214. Guide bar; 22. Push block; 221. Clamping slot; 23. Pushing actuator; 24. Reversing fixture; 241. Reversing actuator; 242. Clamping actuator; 2421. Clamping finger; 2422. Clamping slot; 243. Lifting actuator; 3. Feeding device; 31. Feeding rack; 311. Limiting block; 32. Feeding slide; 321. Feeding trough; 33. Feeding driver; 34. Displacement driver; 4. Insertion device; 41. Mounting frame; 42. Mounting manipulator; 421. Longitudinal drive; 422. Lifting drive; 423. Clamping claw; 5. Detection device; 51. Hole measuring device; 511. Hole measuring head; 5111. Stylus; 5112. Limiting unit; 512. Hole measuring driver; 52. Turning device; 521. Turning driver; 522. Negative pressure seat; 5221. Limiting groove; 5222. Limiting strip; 53. Indenter adjustment device; 531. Indenter driver; 5311. Adjustment slide; 532. Indenter; 54. Visual inspection module; 541. Visual inspection instrument; 542. Fill light; 6. Ejector posture adjustment assembly mechanism; 61. Inspection platform; 611. Inspection conveyor trough; 6111. Head section; 6112. Tail section; 6113. Turning section; 612. First detector; 62. Visual inspection mechanism; 621. Adjustment platform; 6211. Adjustment platform; 62111. Inspection frame; 6212. Adjustment fixing block; 62121. Fixing hole; 6213. Adjustment driver; 6214. Fixing frame; 622. Second detector; 7. Clamping device; 71. Clamping driver; 72. Pressing block; 721. Auxiliary guide bar; 73. Pressure driver; 731. Guide frame; 732. Guide groove. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 7 As shown, an automatic assembly line for spring ejectors of the present invention includes a loading platform 1, a loading device 2, a feeding device 3, an inserting device 4 and a detecting device 5.

[0026] The loading platform 1 is provided with a guide trough 11 for guiding the sliding of the plastic parts. The guide trough 11 physically constrains and guides the movement path of the plastic parts, ensuring that the plastic parts maintain a predetermined posture and direction during the conveying process, providing a basis for subsequent accurate insertion and inspection operations.

[0027] The feeding device 2 is installed at one end of the guide trough 11 and connected to the vibrating feeder at the other end. 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 an automated transition from vibrating sorting to linear conveying, ensuring continuous feeding.

[0028] The feeding device 3 is disposed on one side of the guide trough 11 and is used to push the plastic parts along the guide trough 11. The feeding device 3 provides active driving force, pushing the plastic parts forward in the guide trough 11 as needed. This enables controlled, step-by-step conveying of plastic parts on the assembly line and accurate positioning at the insertion and inspection stations.

[0029] The insertion device 4, located above the material guide trough 11, is used to transport ejector pins and insert them into the material holes of the plastic parts to form the connector. Located directly above the plastic part's conveying path, the insertion device 4 vertically presses the ejector pins into the material holes of the plastic parts, achieving automated and precise insertion of the ejector pins into the plastic parts to form the final connector product.

[0030] The detection device 5 is located on one side of the guide trough 11 and is used to detect the status 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 status of the connector's ejector pins. This enables online and automatic detection of the connector's ejector pin status, promptly identifying defective components and ensuring product quality.

[0031] During operation, a vibrating loader provides oriented plastic parts, which are then fed into a chute 11 by a feeding device 2. The feeding device 3 pushes the plastic parts through the chute 11 in a stepwise manner. When the plastic parts reach the insertion station, the upper insertion device 4 presses the ejector pins vertically onto the plastic parts to form a connector. The feeding device 3 then pushes the connector to the inspection station, where a lateral inspection device 5 instantly checks the status of the ejector pins. The connector eventually flows out of the chute 11 for subsequent processing. The core of this entire process lies in the linearly constrained guidance of the chute 11, the orderly actuation of the feeding device 3, the precise alignment of the upper insertion, and the real-time monitoring of the lateral inspection.

[0032] like Figure 3 As shown, the loading device 2 of this embodiment includes a pushing platform 21 , a pushing block 22 and a pushing driver 23 .

[0033] The pusher platform 21 is equipped with a loading chute 211, which is arranged perpendicular to the guide chute 11. The loading chute 211 is equipped with a feed port 212 and a discharge port 213. A vibrating loader is connected to the feed port 212, and the discharge port 213 is located on one side of the guide chute 11. The feed port 212 is connected to the vibrating loader, and the discharge port 213 is connected laterally to the guide chute 11. The output direction of the vibrating loader is connected to the transfer direction of the guide chute 11 in a 0-degree direction. The entrance and exit of the steering path are precisely defined to prevent plastic parts from straying from the transfer path.

[0034] The push driver 23 drives the push block 22 from the feed port 212 toward the discharge port 213. The driver drives the push block 22 in a straight line from the feed port 212 toward the discharge port 213. Active mechanical pushing replaces gravity sliding, ensuring that the plastic parts are reliably transferred to the guide chute 11 and eliminating the risk of material jamming.

[0035] The driving driver 23 may be a cylinder or a linear motor, so that the driving driver 23 provides a linear reciprocating power source.

[0036] like Figure 3 As shown, the push block 22 of this embodiment is provided with a slot 221 for securing the plastic part. Specifically, the slot 221 is a recessed structure provided on the end surface of the push block 22 that contacts the plastic part, and matches the shape of the plastic part. During the pushing process, the slot 221 holds the plastic part in place, preventing it from sliding or rotating relative to the push block 22, and ensuring that the plastic part maintains its position during rotation and transfer.

[0037] like Figure 3 As shown, in this embodiment, a guide bar 214 is provided on one side of the discharge port 213 to prevent the plastic part from sliding out of the slot 221. Specifically, the guide bar 214 is a linear blocking structure with a protrusion added to one side of the discharge port 213. When the plastic part is pushed into the discharge port 213 by the push block 22, the guide bar 214 physically prevents it from sliding laterally out of the slot 221, ensuring that the plastic part can only enter the guide chute 11 along a predetermined trajectory.

[0038] like Figure 2 As shown, in this embodiment, a positioning groove 13 is provided on one side of the guide trough 11 for detecting the position of the plastic part in the guide trough 11. The positioning groove 13 serves as a reference for the position of the plastic part in the guide trough 11, and directly senses the real-time position of the plastic part in the guide trough 11.

[0039] like Figure 4 As shown, the reversing fixture 24 of 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 rise and fall, 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 rise and fall, 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 the clamping or releasing action and directly contacts the plastic part. It dynamically grasps and fixes the plastic part to ensure that it does not dislocate during rotation.

[0040] The reversing actuator 241 is a combination of a servo motor and a planetary reducer, achieving an angle control accuracy of ±.°, suitable for precise steering requirements. The clamping actuator 242 is a pneumatic or electric gripper that performs gripping and releasing actions. The lifting actuator 243 can be a pneumatic cylinder or a linear motor to drive the reversing actuator 241 up and down.

[0041] like Figure 4 As shown, the clamping actuator 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. The clamping groove 2422 is formed on the end surface of the clamping finger and matches the contour of the plastic part. The clamping groove 2422 wraps around the key part of the plastic part, eliminating the risk of slipping or deflection during rotation.

[0042] like Figure 2 As shown, the feeding device 3 of this embodiment includes a feeding frame 31 , a feeding slider 32 and a feeding driver 33 .

[0043] The feeding frame 31 is disposed on one side of the guide trough 11 , and the displacement driver 34 drives the feeding frame 31 to move closer to or away from the guide trough 11 ; The feeding slide 32 is slidably connected to the feeding frame 31 . The feeding slide 32 is provided with a plurality of feeding grooves 321 for limiting plastic parts. The feeding driver 33 drives the feeding slide 32 to reciprocate along the guide groove 11 .

[0044] Specifically, the displacement driver 34 drives the feed rack 31 close to the guide trough 11, so that the plastic part is stuck in the feed trough 321, which facilitates pushing the plastic part. When the displacement driver 34 drives the feed rack 31 away from the guide trough 11, the feed trough 321 is separated from the plastic part.

[0045] The feed frame 31 provides a fixed support base and a reference for the conveying track, ensuring that the feed slide 32 moves parallel to the guide trough 11 to avoid displacement of the thrust direction.

[0046] Multiple independent feeding chutes 321 can carry multiple plastic parts at a time, isolating the plastic parts in different time periods to prevent collision or stacking during transportation.

[0047] The feed drive 33 linearly drives the slider to move back and forth along the guide trough 11. Actively controlling the plastic parts to advance in steps, replacing continuous friction conveying, eliminates the risk of slippage.

[0048] The feeding driver 33 is a combination of a stepping motor and a ball screw, so that the feeding driver 33 can precisely control the distance of the feeding slider 32 along the material guide trough 11 .

[0049] like Figure 2 As shown, the feed frame 31 of this embodiment is equipped with limit blocks 311 for limiting the sliding range of the feed slider 32. Specifically, the limit blocks 311 are physical blocking structures located at both ends of the feed frame 31, restricting the range of movement of the feed slider 32. This precisely controls the slider's reciprocating stroke, preventing overtravel impacts that could cause plastic component displacement or equipment damage.

[0050] like Figure 1 、 Figure 5 and Figure 6 As shown, this embodiment further includes an ejector posture adjustment assembly mechanism 6 and a pressing device 7 . The ejector posture adjustment assembly mechanism 6 is arranged below the insertion device 4 ; the pressing device 7 is arranged on one side of the insertion device 4 .

[0051] The ejector posture adjustment assembly mechanism 6 adjusts the ejector's posture before insertion. This ensures the ejector enters the plastic part's solid material hole with the correct posture (e.g., verticality and angle), improving insertion accuracy and success rate while reducing insertion errors (e.g., crooked or skewed insertion) caused by incorrect ejector posture. A clamping device 7, located adjacent to the insertion station, applies downward pressure after the ejector is inserted into the plastic part, ensuring accurate insertion and reaching the desired depth.

[0052] like Figure 5 and Figure 6 As shown, the ejector posture adjustment assembly mechanism 6 includes a detection platform 61 and a visual detection mechanism 62.

[0053] The inspection table 61 includes an inspection conveyor trough 611 and a first detector 612. The inspection conveyor trough 611 is used to receive the ejectors delivered by the loader, and the first detector 612 is used to detect whether there are ejectors in the inspection conveyor trough 611. The inspection conveyor trough 611 receives the ejectors output by the loader (such as a vibration plate) and serves as a transfer buffer area. This prevents ejectors from directly entering the inspection station and causing congestion, ensuring process continuity. The presence of ejectors in the inspection conveyor trough 611 is monitored by the first detector 612. The action signal of the conveying robot is triggered to avoid empty or missed grasping, thereby improving process reliability. Among them, the first detector 612 is a photoelectric sensor, an optical fiber sensor, a proximity sensor or a micro switch.

[0054] The visual inspection mechanism 62 includes an adjustment platform 621 for adjusting the shape of the ejector pin and a second detector 622 for detecting the position of the ejector pin on the adjustment platform 621. The adjustment platform 621 physically adjusts the ejector pin's posture (e.g., rotates it) to align the conductive hole with the target orientation. This solves the problem of inefficient manual adjustment and ensures that the conductive hole of the ejector pin is uniformly oriented before insertion into the plastic part. The second detector 622 detects whether the adjusted ejector pin's posture meets the requirements (e.g., the conductive hole's orientation). This verifies the adjustment results, prevents incorrect posture from entering the assembly, and ensures subsequent assembly accuracy and conductive performance.

[0055] like Figure 5 As shown, the pressing device 7 of this embodiment includes a pressing driver 71 , a pressing block 72 and a pressure driver 73 .

[0056] The clamping driver 71 is arranged on one side of the guide trough 11 and drives the pressure driver 73 to rise and fall; the overall height adjustment of the clamping mechanism is achieved through the clamping driver 71, which is suitable for plastic parts of different thicknesses and accurately controls the clamping stroke.

[0057] The pressure driver 73 drives the pressing block 72 to move horizontally toward or away from the plastic part. The pressure driver 73 controls the precise micro-feeding of the pressing block 72 and accurately controls the horizontal distance between the pressing block 72 and the ejector pin, thereby facilitating the pressing of the ejector pin.

[0058] The pressing driver 71 is a servo electric cylinder or a pneumatic lifting column to drive the pressing driver 73 to move up and down. The pressing driver 73 is a piezoelectric ceramic micro-motion stage or a ball screw module to drive the pressing block 72 to move horizontally toward or away from the plastic part.

[0059] like Figure 5 As shown, the pressure driver 73 of this embodiment is provided with a guide frame 731, and the guide frame 731 is provided with a guide slot 732 that is slidably connected to the pressure block 72. The guide slot 732 constrains the freedom of movement of the pressure block 72, making it easier for the pressure driver 73 to drive the pressure block 72 horizontally toward or away from the plastic part.

[0060] like Figure 5 As shown, in this embodiment, auxiliary guide bars 721 are provided on both sides of the pressing block 72 , and the auxiliary guide bars 721 are slidably connected to the guide grooves 732 , so that the pressing block 72 can move horizontally closer to or farther from the plastic part more smoothly.

[0061] like Figure 5 As shown, the insertion device 4 of this embodiment includes a conveying frame and an installation manipulator 42, and the installation manipulator 42 is arranged on the conveying frame; The installation robot 42 includes a longitudinal drive 421, a lifting drive 422 and a clamping claw 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 material guide trough 11. The lifting driver 422 is used to drive the clamping claw 423 to move up and down. The clamping claw 423 is used to clamp or release the ejector pin.

[0062] Specifically, the conveyor frame carries the rigid frame of the installation robot 42 and provides a motion track reference, thereby ensuring the overall structural stability of the installation robot 42 and resisting the inertial deviation of the movement.

[0063] The driving assembly of the longitudinal driver 421 moves in the horizontal direction (such as the X axis) to position the lifting driver 422 above the detection conveying trough 611, the adjustment platform 621 and the guide trough 11. This replaces manual movement and shortens the ejector transfer path time.

[0064] Lift actuator 422 drives gripper 423 vertically (e.g., along the Z axis) to control the pick-and-place height. This allows for adaptability to various workstation heights, including inspection of material removal from conveyor chute 611, insertion into adjustment platform 621, and insertion of adjusted ejector pins into plastic parts.

[0065] The clamping claw 423 is the end effector, which fixes the ejector pin by mechanical clamping or negative pressure adsorption, thereby preventing scratches on the ejector pin surface and ensuring the conductive performance of the ejector pin.

[0066] The longitudinal actuator 421 is a servo motor and ball screw drive module or pneumatic slide, with a screw drive positioning accuracy of ±0.05mm and a pneumatic slide speed of ≥1m / s (suitable for high-speed production lines). The lifting actuator 422 is a micro electric cylinder or compact pneumatic cylinder, with a thrust of ≥200N (for heavy-duty ejectors) and a stroke of 50-100mm (suitable for the thickness of common plastic parts). The gripper 423 is a pneumatic two-finger flat clamp or vacuum nozzle assembly. The pneumatic two-finger flat clamp is suitable for special-shaped ejectors (with adjustable force control of 5-20N). The vacuum nozzle assembly can absorb multiple ejectors for synchronous transfer.

[0067] like Figure 6 As shown, the detection conveying trough 611 of 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 .

[0068] Specifically, the head section 6111 is a flared buffer guide rail. By widening the entrance section of the detection conveying trough 611, the detection conveying trough 611 can accommodate the high-speed discharge of the vibration plate. The head section 6111 is lined with silicone to reduce the collision noise of the ejector pin.

[0069] The turning section 6113 is a 90° arc curve. A lateral pressure wheel is provided on the inner wall of the turning section 6113 to constrain the ejector path through the turning section 6113. The lateral pressure wheel applies slight pressure to the ejector to prevent the ejector from popping out when turning.

[0070] 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.

[0071] like Figure 5 As shown, the adjustment platform 621 of 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).

[0072] The adjustment actuator 6213 is fixed to the adjustment platform 6211, and the adjustment actuator 6213 drives the adjustment fixed block 6212 to rotate. Specifically, the adjustment platform 6211 serves as a mounting base, supporting the adjustment actuator 6213 and the adjustment fixed block 6212. The adjustment platform 6211 provides stable mechanical support to prevent vibration and displacement.

[0073] The adjustment fixing block 6212 rotates along with the movement of the adjustment driver 6213. The adjustment fixing block 6212 physically fixes the ejector pin and transmits the rotational force to the ejector pin to achieve precise angle control.

[0074] The adjustment driver 6213 outputs a rotational force to drive the adjustment fixed block 6212 to rotate. This actively corrects the ejector pin's direction and aligns the pin's conductive hole to a target angle (e.g., 0° or 180°) through controlled rotation.

[0075] like Figure 5 As shown, the adjustment driver 6213 of 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 .

[0076] Specifically, the fixing frame 6214 serves as a connecting structure between the adjustment driver 6213 and the adjustment fixing block 6212, providing mechanical support and positioning reference, preventing relative displacement between the adjustment driver 6213 and the adjustment fixing block 6212 during the adjustment process, and ensuring the stability of rotation accuracy.

[0077] The fixing hole 62121 is formed on the adjustment fixing block 6212 to accommodate or lock the ejector pin. The fixing hole 62121 constrains and fixes the ejector pin to prevent it from slipping or deflecting during rotation.

[0078] like Figure 5 As shown, the second detectors 622 of this embodiment include two, and the two second detectors 622 are arranged opposite to each other on the adjustment platform 621 .

[0079] Specifically, the two second detectors 622 simultaneously detect the ejector pin's posture (such as the conductive hole's orientation) from opposite directions. The dual viewing angles cover the entire circumference of the ejector pin, avoiding misjudgment caused by occlusion in single-sided detection.

[0080] The second detector 622 is positioned opposite the adjustment platform 621 and symmetrically distributed on either side of the adjustment platform 621 (e.g., at 0° and 180°). The bidirectional data comparison performed by the second detector 622 verifies the consistency of the ejector pin's posture (e.g., whether the conductive vias are concentrically aligned).

[0081] The two second detectors 622 are both through-beam laser sensor systems 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 posture of the ejector is reconstructed from a 3D point cloud (with an accuracy of ±0.1mm).

[0082] like Figure 5As shown, the adjustment platform 6211 of this embodiment is provided with a detection frame 62111, and two second detectors 622 are oppositely arranged on the detection frame 62111. The second detectors 622 are fixed to the adjustment platform 6211 through the detection frame 62111.

[0083] like Figure 7 As shown, the detection device 5 of this embodiment includes a hole measuring device 51 , a flipping device 52 , a pressure needle adjustment device 53 and a visual detection module 54 .

[0084] The hole measuring device 51 is arranged on one side of the material guide trough 11 and is used to detect the status of the conductive hole of the ejector pin; the hole measuring device 51 detects the status of the conductive hole of the ejector pin during the sliding process of the connector, identifies abnormalities of the conductive hole, such as blockage or whether the hole position is in the preset position, and realizes pre-screening of defective products.

[0085] The guide trough 11 is provided with a vacant position 12, and the flipping device 52 is provided at the vacant position 12 and is used to flip the connector over; a mechanical flipping mechanism is provided by using the vacant position 12 of the guide trough 11 to automatically complete the flipping of the connector, meeting the double-sided detection requirements without manual intervention.

[0086] The pressure pin adjustment device 53 is provided above the guide slot 11 and is used to flatten the connector's ejector pins. It applies downward pressure to the connector's ejector pins above the guide slot 11, flattening the warped ejector pins and ensuring they are flat, providing a reference for height detection.

[0087] The visual inspection module 54 is located on one side of the guide trough 11 and is used to detect the height of the connector's ejector pins. Optical imaging captures images of the ejector pins during the connector's sliding motion. This precise, non-contact measurement ensures accurate and objective detection.

[0088] During operation, the connector is placed in the guide trough 11 of the loading platform 1, and the trough structure guides the connector to slide along a fixed path. The feeding device 3 applies a lateral thrust to the connector in the guide trough 11, driving the connector to slide continuously along the trough. During the sliding process, the hole measuring device 51 detects the alignment or blockage status of the conductive hole of the ejector pin in real time on the side of the guide trough 11, which is convenient for marking potential defective products. When the connector slides to the vacant position 12 of the guide trough 11, the flipping device 52 grabs the connector and completes the ° flip, and then accurately puts the connector back into the guide trough 11 for continued transportation. After flipping, the pressure pin adjustment device 53 presses down from the top of the guide trough 11, applying controllable pressure to the ejector pin to eliminate warping and deformation caused by transportation. The calibrated connector slides to the terminal, and the visual inspection module 54 measures the ejector pin height non-contactly through optical imaging and outputs accurate data.

[0089] like Figure 7As shown, the hole measuring device 51 of this embodiment includes a hole measuring head 511 and a hole measuring driver 512 .

[0090] A stylus 5111 is mounted on the end of the via head 511. A stylus driver 512 drives the head 511 toward or away from the conductive hole of the ejector pin. The stylus 5111 at the end of the head 511 directly inserts into or contacts the conductive hole. This physical contact allows for precise detection of alignment or blockage of the conductive hole. The driver 512 drives the head 511 and stylus 5111 along a straight line toward or away from the conductive hole. Automatically controlling the insertion and resetting of the stylus 5111 automates the inspection process.

[0091] The hole measuring driver 512 may be a linear cylinder, a combination of a servo motor and a ball screw, or a piezoelectric ceramic driver.

[0092] like Figure 7 As shown, in this embodiment, the end of the probe head 511 is provided with limit portions 5112 on both sides. The limit portions 5112 and the outer wall of the connector limit the probe, facilitating the detection of the ejector pin, preventing the probe 5111 from being over-inserted into the conductive hole and causing damage to the ejector pin, or under-inserted and causing detection failure, thereby ensuring consistent probing depth.

[0093] The limiting portion 5112 is a boss stopper, an adjustable screw limiter or an elastic buffer limiting column.

[0094] like Figure 7 As shown, the flipping device 52 of this embodiment includes a flipping driver 521 and a negative pressure suction seat 522; The negative pressure suction seat 522 is used to adsorb the connector; the negative pressure suction seat 522 uses the adsorption force generated by the negative pressure to grasp the surface of the connector, thereby achieving stable grasping without mechanical clamping damage.

[0095] The flipping actuator 521 drives the negative pressure suction seat 522 to flip, accurately completing the double-sided exchange of the plastic part and ensuring the position consistency after flipping. This solves the core problem of low efficiency and easy drop of manual flipping.

[0096] The flip driver 521 is a swing cylinder or a rotary cylinder.

[0097] like Figure 7As shown, the negative pressure suction seat 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 provided on the surface of the negative pressure suction seat 522 to limit the connector in the negative pressure suction seat 522, providing a preliminary positioning reference. The limiting groove 5221 also facilitates the docking of the negative pressure suction seat 522 with the material guide trough 11. The raised strip-shaped limiting strip 5222 in the limiting groove 5221 directly supports the connector. On the one hand, it isolates the suction seat surface to prevent 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 seat, making it difficult to remove and place.

[0098] like Figure 7 As shown, the pressure needle adjustment device 53 of this embodiment includes a pressure needle driver 531 and a pressure head 532.

[0099] The pin driver 531 drives the indenter 532 toward or away from the connector's ejector pin. The indenter 532 directly contacts the ejector pin's elastic component, transferring the downward pressure from the indenter driver 531 to the ejector pin, achieving physical flattening. The indenter driver 531 drives the indenter 532 in vertical linear motion, controlling the indenter 532 to precisely approach the ejector pin for pressure or move away for reset, achieving automated leveling.

[0100] The pressing needle driver 531 may be a servo electric cylinder or a linear cylinder.

[0101] like Figure 7 As shown, the indenter driver 531 of this embodiment is provided with an adjustment slot 5311, and the indenter 532 is fixed in the adjustment slot 5311. The driver body is provided with a long strip-shaped adjustment slot 5311. The adjustment slot 5311 provides a physical track for the horizontal movement of the indenter 532, making the position of the indenter 532 adjustable.

[0102] like Figure 7 As shown, the visual inspection module 54 of this embodiment includes a visual inspection instrument 541 and a fill light 542.

[0103] The fill light 542 is used to project light onto the connector. The fill light 542 actively projects light onto the connector surface and ejector pin area, thereby enhancing the clarity and contrast of visual imaging and eliminating ambient light interference.

[0104] The visual inspection device 541 is used to inspect the height of the connector ejector pins. The visual inspection device 541 captures an image of the connector ejector pin area and accurately measures the ejector pin height through image analysis, achieving non-contact inspection.

[0105] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An automatic assembly line for spring ejectors, characterized in that: It includes a loading platform (1), a loading device (2), a feeding device (3), an inserting device (4), and a detection device (5); The loading platform (1) is provided with a guide trough (11) for guiding the sliding of the plastic parts; The feeding device (2) is arranged 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 (3) is arranged on one side of the guide trough (11) and is used to push the plastic part to slide along the guide trough (11); The insertion device (4) is arranged above the material guide groove (11) and is used to insert the ejector pin into the solid material hole of the plastic part to form a connector; The detection device (5) is arranged on one side of the material guide groove (11) and is used to detect the state of the ejector pin of the connector.

2. The automatic assembly line for spring ejectors according to claim 1, characterized in that: The loading device (2) comprises a pushing platform (21), a pushing block (22) and a pushing driver (23); The pushing platform (21) is provided with a feeding trough (211), and the feeding trough (211) is arranged vertically to the material guide trough (11); The feeding trough (211) is provided with a feeding port (212) and a discharging port (213), a vibration feeder is connected to the feeding port (212), and the discharging port (213) is provided on one side of the guide trough (11); The pushing driver (23) drives the pushing block (22) from the feed port (212) to the discharge port (213).

3. The automatic assembly line for spring ejectors according to claim 1, characterized in that: The feeding device (3) includes a feeding frame (31), a feeding slide (32), a feeding driver (33) and a displacement driver (34); The material conveying frame (31) is arranged on one side of the material guide trough (11), and the displacement driver (34) drives the material conveying frame (31) to move closer to or away from the material guide trough (11); The feeding slide block (32) is slidably connected to the feeding frame (31), and the feeding slide block (32) is provided with a plurality of feeding grooves (321) for limiting plastic parts. The feeding driver (33) drives the feeding slide block (32) to move back and forth along the guide groove (11).

4. The automatic assembly line for spring ejectors according to claim 1, characterized in that: It also includes an ejector posture adjustment assembly mechanism (6) and a pressing device (7), wherein the ejector posture adjustment assembly mechanism (6) is arranged below the insertion device (4); the pressing device (7) is arranged on one side of the insertion device (4); The ejector posture adjustment assembly mechanism (6) includes a detection platform (61) and a visual detection mechanism (62); The detection platform (61) comprises a detection conveying trough (611) and a first detector (612), wherein the detection conveying trough (611) is used to receive the ejector delivered by the loader, and the first detector (612) is used to detect whether there is an ejector in the detection conveying trough (611); The visual inspection mechanism (62) comprises an adjustment platform (621) and a second detector (622), wherein the adjustment platform (621) is used to adjust the shape of the ejector pin, and the second detector (622) is used to detect the state of the ejector pin on the adjustment platform (621); The pressing device (7) includes a pressing driver (71), a pressing block (72) and a pressure driver (73); The pressing driver (71) is arranged on one side of the material guide trough (11) and drives the pressing driver (73) to move up and down; The pressure driver (73) drives the pressing block (72) to move horizontally closer to or farther away from the plastic part.

5. The automatic assembly line for spring ejectors according to claim 4, characterized in that: The insertion device (4) comprises a mounting frame (41) and a mounting manipulator (42), wherein the mounting manipulator (42) is arranged on the mounting frame (41); The mounting manipulator (42) includes a longitudinal drive (421), a lifting drive (422), and a clamping claw (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 material guide trough (11), and the lifting driver (422) is used to drive the clamping claw (423) to rise and fall, and the clamping claw (423) is used to clamp or release the ejector pin.

6. The automatic assembly line for spring ejectors according to claim 4, characterized in that: The detection conveying trough (611) comprises 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) comprises 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 automatic assembly line for spring ejectors according to claim 1, characterized in that: The detection device (5) comprises a hole measuring device (51), a flipping device (52), a pressure needle adjustment device (53) and a visual detection module (54); The hole measuring device (51) is arranged on one side of the material guide trough (11) and is used to detect the conductive hole status of the ejector pin; The material guide trough (11) is provided with a vacant position (12), and the flipping device (52) is provided at the vacant position (12) and is used to flip the connector; The pressure needle adjustment device (53) is arranged above the material guide groove (11) and is used to flatten the ejector pin of the connector; The visual inspection module (54) is arranged on one side of the material guide trough (11) and is used to detect the height of the connector ejector pin.

8. The automatic assembly line for spring ejectors according to claim 7, characterized in that: The hole measuring device (51) comprises a hole measuring head (511) and a hole measuring driver (512); A measuring needle (5111) is provided at the end of the hole measuring head (511), and the hole measuring driver (512) drives the hole measuring head (511) to move closer to or away from the conductive hole of the ejector pin; Limiting portions (5112) for limiting the outer wall of the connector are provided on both sides of the end of the hole measuring head (511).

9. The automatic assembly line for spring ejectors according to claim 7, characterized in that: The flipping device (52) includes a flipping driver (521) and a negative pressure suction seat (522); The negative pressure suction seat (522) is used to adsorb 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 supporting a connector is provided in the limiting groove (5221).

10. The automatic assembly line for spring ejectors according to claim 7, characterized in that: The pressure needle adjustment device (53) comprises a pressure needle driver (531) and a pressure head (532); the pressure needle driver (531) drives the pressure head (532) to move closer to or away from the ejector pin of the connector; the pressure needle driver (531) is provided with an adjustment slot (5311), and the pressure head (532) is fixed in the adjustment slot (5311); The visual inspection module (54) comprises a visual inspection instrument (541) and a fill light (542); the fill light (542) is used to project light onto the connector; and the visual inspection instrument (541) is used to detect the height of the connector ejector pin.

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