Spring ejector pin posture adjusting and assembling mechanism
By combining a testing station and a testing and adjustment station with a conveyor robot, the posture of the spring ejector pin is automatically adjusted, solving the problem of low efficiency in traditional manual adjustment. This achieves precise alignment between the ejector pin and the plastic part, improving the conductivity and mechanical life of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市正合普力生电子有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
AI Technical Summary
The assembly process of traditional spring ejector pins relies on manual adjustment, which leads to low efficiency and makes it difficult to ensure precise alignment between the ejector pin and the plastic part, affecting the conductivity and mechanical life of the connector.
The system employs a combination of a testing platform and a testing and adjustment platform with a conveying robot. After the first testing instrument confirms that the ejector pin is in place, the conveying robot transfers the ejector pin to the testing and adjustment platform. The adjustment platform then corrects the ejector pin's posture, and the second testing instrument verifies that it is qualified before outputting the result. This achieves automated adjustment and closed-loop testing of the ejector pin's posture.
It enables automated adjustment of the ejector pin posture, improves assembly efficiency, ensures precise alignment between the ejector pin and the plastic part, and enhances the conductivity and mechanical life of the connector.
Smart Images
Figure CN224274027U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manufacturing technology of connecting devices, and in particular to a spring pin posture adjustment assembly mechanism. Background Technology
[0002] In the field of electronic connector manufacturing, ejector pins (spring ejector pins), as core conductive components, need to be precisely assembled with plastic parts. Their positional accuracy directly affects the conductivity and mechanical life of the connector. Traditional assembly relies on manual operation: after workers take the ejector pins from the feeder (such as a vibratory feeder), they need to manually adjust their posture and insert them into the plastic parts.
[0003] Manually adjusting the state of the ejector pins before insertion into the plastic part requires ensuring that the conductive holes in each ejector pin on the plastic part are aligned. However, the efficiency of workers adjusting the state of the ejector pins before insertion into the plastic part is low, so it is necessary to improve this method. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a spring ejector pin posture adjustment assembly mechanism. After the ejector pin is confirmed to be in place by the first detector, the conveying robot transfers the ejector pin to the inspection and adjustment platform, where the adjustment platform corrects the ejector pin posture. After the second detector verifies that the posture is qualified, the output is output, thus realizing a closed loop of ejector pin posture adjustment and verification.
[0005] To achieve the above objectives, this utility model provides a spring ejector pin posture adjustment assembly mechanism, which includes a testing table, a testing and adjustment table, and a conveying robot.
[0006] The conveying robot is positioned between the detection table and the detection adjustment table and is used to convey the ejector pin;
[0007] 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.
[0008] The detection and adjustment table includes an adjustment platform and a second detector. 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.
[0009] 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.
[0010] Preferably, the adjustment platform includes an adjustment table, an adjustment fixing block, and an adjustment driver;
[0011] The adjustment driver is fixed to the adjustment platform, and the adjustment driver drives the adjustment fixing block to rotate.
[0012] Preferably, the adjustment driver is provided with a fixing frame, the adjustment fixing block is disposed on the fixing frame, and the adjustment fixing block is provided with fixing holes.
[0013] Preferably, the second detector comprises two instruments, which are arranged opposite to each other on the adjustment platform.
[0014] Preferably, the adjustment table is provided with a testing frame, and two second testing instruments are arranged opposite to each other on the testing frame.
[0015] Preferably, the conveying robot includes a conveyor frame and an installation robot, wherein the installation robot is disposed on the conveyor frame;
[0016] The installation robot includes a longitudinal driver, a lifting driver, and a gripping claw;
[0017] The longitudinal driver is used to drive the lifting driver to position itself above the detection conveying trough or adjustment platform. The lifting driver is used to drive the clamping jaws to move up and down. The clamping jaws are used to clamp or release the ejector pins.
[0018] Preferably, the inner side of the gripper is provided with an anti-slip groove, and the anti-slip groove is provided with anti-slip texture.
[0019] The beneficial effects of this utility model are as follows: After the first detector confirms that the ejector pin is in place, the conveying robot transfers the ejector pin to the detection and adjustment platform, where the adjustment platform corrects the ejector pin posture. After the second detector verifies that the posture is qualified, the output is output, thus realizing a closed loop of ejector pin posture adjustment and verification. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the structure of the detection conveying trough of this utility model.
[0022] Figure 3 This is a schematic diagram of the structure of the testing and adjustment table of this utility model.
[0023] Figure 4 This is a schematic diagram of the conveying robot of this utility model.
[0024] The reference numerals in the figures include:
[0025] 1. Testing platform; 11. Testing conveyor trough; 111. Head section; 112. Tail section; 113. Turning and steering section; 12. First testing instrument;
[0026] 2. Detection and adjustment table; 21. Adjustment platform; 211. Adjustment table; 2111. Detection frame; 212. Adjustment fixing block; 2121. Fixing hole; 213. Adjustment driver; 214. Fixing frame; 22. Second detector;
[0027] 3. Conveying robot; 31. Conveying frame; 32. Installation robot; 321. Longitudinal drive; 322. Lifting drive; 323. Gripping claw; 3231. Anti-slip groove. Detailed Implementation
[0028] The present invention will now be described in detail with reference to the accompanying drawings.
[0029] like Figures 1 to 4 As shown, the present invention provides a spring pin posture adjustment assembly mechanism, which includes a testing platform 1, a testing and adjustment platform 2, and a conveying robot 3.
[0030] The conveying robot 3 is positioned between the inspection table 1 and the inspection adjustment table 2 and is used to convey ejector pins. The conveying robot 3 transfers ejector pins between the inspection table 1 and the inspection adjustment table 2, connecting the two workstations. This replaces manual handling of ejector pins, reduces manual intervention, and achieves automated process connection.
[0031] The detection station 1 includes a detection conveying trough 11 and a first detector 12. The detection conveying trough 11 receives ejector pins conveyed by the feeder, and the first detector 12 detects whether ejector pins are present in the detection conveying trough 11. The detection conveying trough 11 serves as a buffer zone for ejector pins output from the feeder (e.g., a vibratory feeder), preventing ejector pins from directly entering the detection station and causing congestion, thus ensuring process continuity. The first detector 12 monitors the presence status of ejector pins in the detection conveying trough 11, triggering the action signal of the conveying robot 3 to avoid empty grabbing or missed grabbing, improving process reliability. The first detector 12 can be a photoelectric sensor, fiber optic sensor, proximity sensor, or microswitch.
[0032] The inspection and adjustment table 2 includes an adjustment platform 21 and a second detector 22. The adjustment platform 21 is used to adjust the shape of the ejector pin, and the second detector 22 is used to detect the state of the ejector pin on the adjustment platform 21. The adjustment platform 21 is used to physically adjust the ejector pin's posture (e.g., rotate it) 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 ejector pin's conductive hole before insertion into the plastic part. The second detector 22 checks whether the adjusted ejector pin's posture meets the requirements (e.g., the direction of the conductive hole). This verifies the adjustment results, prevents incorrect postures from entering the assembly process, and ensures subsequent assembly accuracy and conductivity.
[0033] During operation, the feeder (such as a vibratory feeder) conveys the ejector pins to the detection conveying trough 11 of the detection platform 1. The first detector 12 monitors the presence of ejector pins in the conveying trough in real time; when "ejector pin present" is detected, it triggers the action signal of the conveying robot 3; when "no ejector pin present" is detected, it waits for feeding or alarms. Material status monitoring is achieved through physical channels (troughs) and sensors to ensure the reliability of action triggering. The conveying robot 3 picks up the ejector pins from the detection conveying trough 11 and moves them to the adjustment platform 21 of the detection adjustment table 2. The adjustment platform 21 performs physical state adjustment (such as rotation) on the ejector pins, and the second detector 22 scans the adjusted ejector pin posture in real time to align the conductive holes of the ejector pins with the target direction.
[0034] After the first detector 12 confirms that the ejector pin is in place, the conveying robot 3 transfers the ejector pin to the detection and adjustment table 2. The adjustment platform 21 corrects the ejector pin posture, and the second detector 22 outputs the result after verification, thus realizing a closed loop of ejector pin posture adjustment and verification.
[0035] like Figure 1 and Figure 2 As shown, the detection conveying trough 11 in this embodiment includes a head section 111 and a tail section 112, and a turning section 113 is provided between the head section 111 and the tail section 112.
[0036] Specifically, the head section 111 is a flared buffer guide rail. By widening the inlet section of the detection conveying trough 11, the detection conveying trough 11 can accommodate the high-speed discharge of the vibratory plate. The head section 111 is lined with silicone to reduce the noise of the ejector pin collision.
[0037] The turning section 113 is a 90° arc curve. The inner wall of the turning section 113 is equipped with a lateral pressure roller. The turning section 113 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.
[0038] The tail section 112 is a linear precision guide rail. The width of the tail section 112 matches the size of the ejector pin (±0.1mm tolerance), ensuring that the ejector pin moves linearly to the detection position without deflection.
[0039] like Figure 3 As shown, the adjustment platform 21 in this embodiment includes an adjustment table 211, an adjustment fixing block 212, and an adjustment driver 213. The adjustment driver 213 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).
[0040] The adjustment driver 213 is fixed to the adjustment platform 211, and the adjustment driver 213 drives the adjustment fixing block 212 to rotate. Specifically, the adjustment platform 211 serves as a mounting base, supporting the adjustment driver 213 and the adjustment fixing block 212. The adjustment platform 211 provides stable mechanical support to prevent vibration and displacement.
[0041] The adjusting fixing block 212 rotates in sync with the adjusting driver 213. The adjusting fixing block 212 physically fixes the ejector pin and transmits rotational force to the ejector pin, achieving precise angle control.
[0042] Adjust the output rotational power of the driver 213 to drive the adjustment fixing block 212 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.
[0043] like Figure 3 As shown, the adjustment driver 213 in this embodiment is provided with a fixing frame 214, the adjustment fixing block 212 is provided on the fixing frame 214, and the adjustment fixing block 212 is provided with a fixing hole 2121.
[0044] Specifically, the fixing bracket 214 serves as the connection structure between the adjustment driver 213 and the adjustment fixing block 212, providing mechanical support and a positioning reference. It prevents relative displacement between the adjustment driver 213 and the adjustment fixing block 212 during adjustment, ensuring stable rotational accuracy.
[0045] A fixing hole 2121 is formed on the adjusting fixing block 212 to accommodate or lock the ejector pin. The fixing hole 2121 constrains and fixes the ejector pin to prevent slippage or displacement during rotation.
[0046] like Figure 3 As shown, the second detector 22 in this embodiment includes two detectors, which are arranged opposite to each other on the adjustment platform 21.
[0047] Specifically, two second detectors 22 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.
[0048] The second detector 22 is positioned opposite the adjustment platform 21, symmetrically distributed on both sides of the adjustment platform 21 (e.g., in the 0° and 180° directions). By comparing the bidirectional data from the second detector 22, the consistency of the ejector pin's posture (e.g., whether the conductive holes are concentrically aligned) is verified.
[0049] Both second detectors 22 are either through-beam laser sensor arrays or dual-sided industrial cameras. If the second detector 22 is a laser sensor, the hole position is determined by blocking the optical path; if the second detector 22 is a dual-sided industrial camera, the spatial attitude of the pin is reconstructed through 3D point cloud (accuracy ±0.1mm).
[0050] like Figure 3 As shown, in this embodiment, the adjustment platform 211 is provided with a detection frame 2111, and two second detectors 22 are arranged opposite to each other on the detection frame 2111. The second detectors 22 are fixed to the adjustment platform 211 by the detection frame 2111.
[0051] like Figure 4 As shown, the conveying robot 3 in this embodiment includes a conveying frame 31 and an installation robot 32, wherein the installation robot 32 is disposed on the conveying frame 31;
[0052] The installation robot 32 includes a longitudinal driver 321, a lifting driver 322, and a gripper 323;
[0053] The longitudinal driver 321 is used to drive the lifting driver 322 to be positioned above the detection conveying groove 11 or the adjustment platform 21. The lifting driver 322 is used to drive the clamping claw 323 to rise and fall. The clamping claw 323 is used to clamp or release the ejector pin.
[0054] Specifically, the conveyor frame 31 provides a rigid frame for mounting the robot arm 32, serving as a reference for its motion trajectory. This ensures the overall structural stability of the robot arm 32 and resists inertial deviations during motion.
[0055] The drive assembly of the longitudinal driver 321 moves in a horizontal direction (such as the X-axis), positioning the lifting driver 322 above the detection conveyor 11 or the adjustment platform 21. This replaces manual positioning and shortens the time for the ejector pin transfer path.
[0056] The lifting driver 322 drives the gripper 323 to move vertically (e.g., along the Z-axis) and lift / lower, controlling the pick-up and put-down height. It adapts to different workstation heights and is compatible with the material handling scenarios of the inspection conveyor trough 11 and the insertion scenario of the adjustment platform 21.
[0057] The gripper 323 is an end effector that uses mechanical clamping or negative pressure adsorption to fix the ejector pin. This prevents scratches on the ejector pin surface and ensures the ejector pin's conductivity.
[0058] The longitudinal actuator 321 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 322 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 323 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.
[0059] like Figure 4As shown, the gripper 323 in this embodiment has an anti-slip groove 3231 on its inner side, and the anti-slip groove 3231 has anti-slip texture. Specifically, the anti-slip groove 3231 has a recessed groove on the inner wall of the gripper 323 to accommodate the outer contour of the ejector pin portion. The anti-slip groove 3231 constrains the radial displacement of the ejector pin and resists inertial offset during handling. The anti-slip texture is a micro-texture (such as serrations or grids) processed on the surface of the anti-slip groove 3231 to increase the friction coefficient of the contact surface. The micro-textures engage with the ejector pin surface to prevent rotation or slippage and ensure damage-free gripping.
[0060] 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-loaded ejector pin posture adjustment assembly mechanism, characterized in that, It includes a testing station (1), a testing and adjustment station (2), and a conveying robot (3); The conveying robot (3) is positioned between the detection table (1) and the detection adjustment table (2) and is used to convey the ejector pin; The testing station (1) includes a testing conveying trough (11) and a first testing instrument (12). The testing conveying trough (11) is used to receive the ejector pins conveyed by the feeder, and the first testing instrument (12) is used to detect whether there are ejector pins in the testing conveying trough (11). The detection and adjustment table (2) includes an adjustment platform (21) and a second detector (22). The adjustment platform (21) is used to adjust the state of the ejector pin, and the second detector (22) is used to detect the state of the ejector pin on the adjustment platform (21).
2. The spring ejector pin posture adjustment assembly mechanism according to claim 1, characterized in that, The detection conveying trough (11) includes a head section (111) and a tail section (112), and a turning section (113) is provided between the head section (111) and the tail section (112).
3. The spring ejector pin posture adjustment assembly mechanism according to claim 1, characterized in that, The adjustment platform (21) includes an adjustment table (211), an adjustment fixing block (212), and an adjustment driver (213); The adjustment driver (213) is fixed to the adjustment platform (211), and the adjustment driver (213) drives the adjustment fixing block (212) to rotate.
4. The spring ejector pin posture adjustment assembly mechanism according to claim 3, characterized in that, The adjustment driver (213) is provided with a fixing frame (214), the adjustment fixing block (212) is provided on the fixing frame (214), and the adjustment fixing block (212) is provided with a fixing hole (2121).
5. The spring ejector pin posture adjustment assembly mechanism according to claim 1, characterized in that, The second detector (22) includes two, and the two second detectors (22) are arranged opposite to each other on the adjustment platform (21).
6. The spring ejector pin posture adjustment assembly mechanism according to claim 5, characterized in that, The adjustment table (211) is provided with a testing frame (2111), and two second testing instruments (22) are arranged opposite to each other on the testing frame (2111).
7. The spring-loaded pin posture adjustment assembly mechanism according to claim 1, characterized in that, The conveying robot (3) includes a conveying frame (31) and an installation robot (32), wherein the installation robot (32) is disposed on the conveying frame (31). The installation robot (32) includes a longitudinal driver (321), a lifting driver (322), and a gripper (323). The longitudinal driver (321) is used to drive the lifting driver (322) to be positioned above the detection conveying groove (11) or the adjustment platform (21). The lifting driver (322) is used to drive the clamping claw (323) to rise and fall. The clamping claw (323) is used to clamp or release the ejector pin.
8. The spring ejector pin posture adjustment assembly mechanism according to claim 7, characterized in that, The gripper (323) has an anti-slip groove (3231) on its inner side, and the anti-slip groove (3231) has anti-slip texture.