Needle head height detection structure of spring ejector pin

Abstract

The utility model relates to the technical field of connector production, in particular to a needle head height detection structure of a spring ejector pin, which comprises a feeding table, a material conveying device, a hole measuring device, a turn-over device, a pressing pin adjusting device and a visual detection device, and is characterized in that the feeding table is provided with a material guide groove for guiding a connector to slide; the material conveying device is arranged on one side of the material guide groove; the hole measuring device is arranged on one side of the guide chute; the guide chute is provided with a vacant position, and the turn-over device is arranged in the vacant position; the pressing needle adjusting device is arranged above the material guide groove; and the visual detection device is arranged on one side of the guide chute. The connector is continuously driven by the material conveying device to slide in the material guide groove, the conductive hole state is primarily screened through the hole measuring device in sequence, double-sided overturning is automatically completed through the overturning device, the posture of an ejector pin is corrected through the pin pressing adjusting device, and finally accurate measurement of the height of the pin is achieved through the visual detection device. Full-process automatic double-sided detection is achieved, the detection efficiency is improved, and the high-speed takt requirement of a modern production line is met.

Description

Technical Field

[0001] This utility model relates to the field of connector manufacturing technology, and in particular to a needle height detection structure for a spring-loaded pin. Background Technology

[0002] In precision connector manufacturing, the pin height of the pogo pin is a core parameter ensuring a reliable electrical connection with the mating component. Traditional pin height inspection relies primarily on manual or semi-automatic methods. This method requires the operator to manually place the connector (holder) at the inspection station and measure using calipers or simple fixtures. If double-sided pins need inspection, an additional manual flipping operation is required. This method is cumbersome, inefficient, and unsuitable for the high-speed requirements of modern production lines, thus necessitating improvement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a spring-loaded ejector pin height detection structure. The connector is continuously driven to slide within the feed trough by a feeding device. It is then passed through a hole-measuring device to initially screen the conductive holes. In the empty positions, a flipping device automatically completes the double-sided flipping. The ejector pin posture is corrected by a needle-adjusting device. Finally, a vision inspection device accurately measures the pin height, achieving fully automated double-sided inspection, improving inspection efficiency, and meeting the high-speed cycle requirements of modern production lines.

[0004] To achieve the above objectives, this utility model provides a needle height detection structure for a spring-loaded ejector pin, comprising a feeding platform, a feeding device, a hole measuring device, a flipping device, a needle pressing adjustment device, and a visual inspection device.

[0005] The loading platform is equipped with a guide groove for guiding the connector to slide.

[0006] The feeding device is disposed on one side of the guide groove and is used to push the connector to slide along the guide groove;

[0007] 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.

[0008] The feed trough is provided with a gap, and the flipping device is provided in the gap and is used to flip the connector.

[0009] The pressure pin adjustment device is located above the guide groove and is used to flatten the ejector pin of the connector;

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

[0011] Preferably, the material conveying device includes a material conveying frame, a material conveying slider, a material conveying driver, and a displacement driver;

[0012] 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;

[0013] The material conveying slider is slidably connected to the material conveying frame. The material conveying slider is provided with a plurality of material conveying grooves for limiting the connector. The material conveying driver drives the material conveying slider to reciprocate back and forth along the material guide groove.

[0014] Preferably, the feeding rack is provided with a limiting block for limiting the sliding range of the feeding slider.

[0015] Preferably, the hole measuring device includes a hole measuring head and a hole measuring driver;

[0016] 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 needle.

[0017] Preferably, the two sides of the end of the measuring head are provided with limiting parts that restrict the connection with the outer wall of the connector.

[0018] Preferably, the flipping device includes a flipping driver and a negative pressure suction seat;

[0019] The negative pressure suction base is used to attach the connector;

[0020] The flip driver drives the negative pressure suction seat to flip 180°.

[0021] Preferably, 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.

[0022] Preferably, the pressure needle adjustment device includes a pressure needle driver and a pressure head;

[0023] The pressure head driver drives the pressure head to move closer to or away from the pin of the connector.

[0024] Preferably, the pressure needle driver is provided with an adjustment groove, and the pressure head is fixed in the adjustment groove.

[0025] Preferably, the visual inspection device includes a visual inspection instrument and a supplementary light;

[0026] The supplemental light is used to project light onto the connector;

[0027] The vision inspection instrument is used to detect the height of the connector pins.

[0028] The beneficial effects of this utility model are as follows: the connector is continuously driven to slide in the guide groove by the feeding device, and is initially screened by the hole measuring device to determine the state of the conductive holes. The flipping device automatically completes the double-sided flipping in the empty position. The pin adjustment device corrects the posture of the ejector pin, and finally the visual inspection device achieves accurate measurement of the pin height, realizing fully automated double-sided inspection, improving inspection efficiency, and matching the high-speed cycle requirements of modern production lines. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the feeding platform and conveying device of this utility model.

[0031] Figure 3 This is a schematic diagram of the hole measuring device, flipping device, pressure needle adjustment device, and visual inspection device of this utility model.

[0032] The reference numerals in the figures include:

[0033] 1. Loading platform; 11. Guide chute; 12. Empty space; 13. Alignment groove;

[0034] 2. Conveying device; 21. Conveying frame; 211. Limiting block; 22. Conveying slider; 221. Conveying trough; 23. Conveying driver; 24. Displacement driver;

[0035] 3. Hole measuring device; 31. Hole measuring head; 311. Measuring stylus; 312. Limiting part; 32. Hole measuring driver;

[0036] 4. Flipping device; 41. Flipping driver; 42. Negative pressure suction seat; 421. Limiting groove; 422. Limiting strip;

[0037] 5. Pressure needle adjustment device; 51. Pressure needle driver; 511. Adjustment slide; 52. Pressure head;

[0038] 6. Visual inspection device; 61. Visual inspection instrument; 62. Supplemental lighting. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings.

[0040] like Figures 1 to 3 As shown, the present invention discloses a needle height detection structure for a spring-loaded pin, comprising a feeding platform 1, a feeding device 2, a hole measuring device 3, a flipping device 4, a needle pressing adjustment device 5, and a vision inspection device 6.

[0041] The loading platform 1 is equipped with a guide groove 11 for guiding the connector to slide; the guide groove 11 provides a directional sliding track for the connector, realizing the initial positioning and guiding conveying of the connector.

[0042] The feeding device 2 is disposed on one side of the guide groove 11 and is used to push the connector to slide along the guide groove 11; by applying a lateral thrust to the connector in the guide groove 11 through the feeding device 2, the connector is driven to slide continuously along the guide groove 11, thereby realizing automated feeding.

[0043] The hole measuring device 3 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 3 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.

[0044] The guide groove 11 is provided with a gap 12, and the flipping device 4 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.

[0045] The pressure pin adjustment device 5 is positioned 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 warped ejector pins, ensuring they are in a flat state and providing a reference for height detection.

[0046] The visual inspection device 6 is disposed on one side of the guide groove 11 and is used to detect the height of the connector pins. The pin image is acquired through optical imaging during the connector sliding process. This non-contact, precise measurement of the pin height ensures both accuracy and objectivity in the inspection.

[0047] 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 2 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 3 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 4 grabs the connector and flips it 180°, and then accurately puts the connector back into the guide groove 11 for continued conveying. After flipping, the pin adjustment device 5 presses down from above the guide groove 11 to apply controllable pressure to the ejector pin, eliminating warping deformation caused by transportation. After calibration, the connector slides to the end, and the vision inspection device 6 measures the height of the ejector pin non-contactly through optical imaging and outputs accurate data.

[0048] The connector is continuously driven to slide in the feed trough 11 by the feeding device 2. It is initially screened by the hole measuring device 3 to check the conductive hole status. The double-sided flipping is automatically completed by the flipping device 4. The pin posture is corrected by the pin pressing adjustment device 5. Finally, the pin height is accurately measured by the vision inspection device 6, achieving fully automated double-sided inspection, improving inspection efficiency and matching the high-speed cycle requirements of modern production lines.

[0049] like Figure 2 As shown, the material conveying device 2 in this embodiment includes a material conveying frame 21, a material conveying slider 22, a material conveying driver 23, and a displacement driver 24;

[0050] The material conveyor 21 is disposed on one side of the material guide trough 11, and the displacement driver 24 drives the material conveyor 21 to move closer to or away from the material guide trough 11;

[0051] The material conveying slider 22 is slidably connected to the material conveying frame 21. The material conveying slider 22 is provided with a plurality of material conveying grooves 221 for limiting the connector. The material conveying driver 23 drives the material conveying slider 22 to reciprocate along the material guide groove 11.

[0052] Specifically, the displacement driver 24 drives the feed rack 21 closer to the guide groove 11, so that the connector is locked in the feed groove 221, making it easy to push the connector; when the displacement driver 24 drives the feed rack 21 away from the guide groove 11, the feed groove 221 is separated from the connector.

[0053] The material conveyor 21 provides a fixed support base and positions the conveying trajectory reference. It ensures that the movement of the material conveyor slider 22 is parallel to the guide chute 11 to avoid deviation in the thrust direction.

[0054] Multiple connectors can be carried at a time via multiple independent feed troughs 221. Connectors are isolated in time slots to prevent them from colliding or stacking during transport.

[0055] The feed driver 23 linearly drives the slider to reciprocate along the guide chute 11. The active control connector advances in stages, replacing continuous friction conveying and eliminating the risk of slippage.

[0056] The material conveying driver 23 is a combination of a stepper motor and a ball screw, which enables the material conveying driver 23 to precisely control and drive the material conveying slider 22 to convey a distance along the guide groove 11.

[0057] like Figure 2 As shown, the material feeding rack 21 in this embodiment is provided with a limiting block 211 for limiting the sliding range of the material feeding slider 22.

[0058] Specifically, the limit block 211 is a physical blocking structure set at both ends of the feeder 21, which restricts the movement range of the feed slider 22. It precisely controls the reciprocating stroke of the slider to avoid overtravel impact that could cause connector displacement or equipment damage.

[0059] like Figure 3 As shown, the hole measuring device 3 in this embodiment includes a hole measuring head 31 and a hole measuring driver 32.

[0060] The end of the measuring head 31 is provided with a measuring stylus 311, and the measuring head driver 32 drives the measuring head 31 to approach or move away from the conductive hole of the ejector pin. The measuring stylus 311 at the end of the measuring head 31 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 32 drives the measuring head 31 and the measuring stylus 311 to approach or move away from the conductive hole along a straight trajectory. The measuring stylus 311 is automatically controlled to perform insertion detection and reset actions, thus automating the detection process.

[0061] The hole measuring driver 32 can be a combination of a linear cylinder, a servo motor and a ball screw, or a piezoelectric ceramic driver.

[0062] like Figure 3 As shown, limiting portions 312 are provided on both sides of the end of the probe head 31 in this embodiment. The limiting portions 312 restrict the probe from the outer wall of the connector, which facilitates the detection of the probe, prevents the probe 311 from being over-inserted into the conductive hole and causing damage to the probe, or prevents insufficient insertion and detection failure, and ensures consistent detection depth.

[0063] The limiting part 312 is a shoulder stop, an adjustable screw limiter, or an elastic buffer limit post.

[0064] like Figure 3 As shown, the flipping device 4 in this embodiment includes a flipping driver 41 and a negative pressure suction seat 42;

[0065] The negative pressure suction holder 42 is used to adsorb the connector; the negative pressure suction holder 42 uses the adsorption force generated by the negative pressure to grasp the surface of the connector, so as to achieve stable gripping without mechanical clamping damage.

[0066] The flipping driver 41 drives the negative pressure suction seat 42 to flip 180°. 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.

[0067] The flipping driver 41 is either a rocker arm cylinder or a rotary cylinder.

[0068] like Figure 3As shown, the negative pressure suction base 42 in this embodiment is provided with a limiting groove 421, and a limiting strip 422 for supporting the connector is provided in the limiting groove 421. The limiting groove 421 with a groove structure is formed on the surface of the negative pressure suction base 42, which limits the connector within the negative pressure suction base 42 and provides a preliminary positioning reference. The limiting groove 421 also facilitates the docking of the negative pressure suction base 42 with the guide groove 11. The raised strip-shaped limiting strip 422 in the limiting groove 421 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.

[0069] like Figure 3 As shown, the pressure needle adjustment device 5 in this embodiment includes a pressure needle driver 51 and a pressure head 52.

[0070] The pressure head driver 51 drives the pressure head 52 to move closer to or away from the ejector pin of the connector. The pressure head 52 directly contacts the elastic component of the ejector pin, transmitting the downward pressure from the pressure head driver 51 to the ejector pin to achieve physical flattening. The pressure head driver 51 drives the pressure head 52 to perform vertical linear movement, controlling the pressure head 52 to precisely approach or move away from the ejector pin to reset, achieving automatic leveling.

[0071] The needle actuator 51 can be a servo electric cylinder or a linear cylinder.

[0072] like Figure 3 As shown, the pressure needle driver 51 in this embodiment is provided with an adjustment groove 511, and the pressure head 52 is fixed in the adjustment groove 511. The driver body is provided with an elongated adjustment groove 511. The adjustment groove 511 provides a physical track for the horizontal movement of the pressure head 52, making the position of the pressure head 52 adjustable.

[0073] like Figure 3 As shown, the visual inspection device 6 in this embodiment includes a visual inspection instrument 61 and a supplementary light 62.

[0074] The supplementary light 62 is used to project light onto the connector; the supplementary light 62 actively projects light onto the connector surface and the pin area. This enhances the clarity and contrast of the visual image and eliminates ambient light interference.

[0075] The vision inspection instrument 61 is used to detect the height of the connector pins. The vision inspection instrument 61 captures images of the connector pin area. Through image analysis, the pin height is accurately measured, achieving non-contact inspection.

[0076] 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 needle height detection structure for a spring-loaded ejector pin, characterized in that, It includes a loading platform (1), a conveying device (2), a hole measuring device (3), a flipping device (4), a pressure needle adjustment device (5), and a vision inspection device (6). The loading platform (1) is provided with a guide groove (11) for guiding the connector to slide. The feeding device (2) is disposed on one side of the guide groove (11) and is used to push the connector to slide along the guide groove (11); The hole measuring device (3) is disposed on one side of the feed groove (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 (4) is provided in the vacancy (12) and is used to flip the connector. The pressure pin adjustment device (5) is located above the guide groove (11) and is used to flatten the ejector pin of the connector; The visual inspection device (6) is located on one side of the guide groove (11) and is used to detect the height of the connector pin.

2. The needle height detection structure of a spring-loaded ejector pin according to claim 1, characterized in that, The material conveying device (2) includes a material conveying frame (21), a material conveying slider (22), a material conveying driver (23), and a displacement driver (24); The feeding rack (21) is located on one side of the guide trough (11), and the displacement driver (24) drives the feeding rack (21) to move closer to or away from the guide trough (11). The material conveying slider (22) is slidably connected to the material conveying frame (21). The material conveying slider (22) is provided with a plurality of material conveying grooves (221) for limiting the connector. The material conveying driver (23) drives the material conveying slider (22) to move back and forth along the material guide groove (11).

3. The needle height detection structure of a spring-loaded ejector pin according to claim 2, characterized in that, The feeding rack (21) is provided with a limiting block (211) for limiting the sliding range of the feeding slider (22).

4. The needle height detection structure of a spring-loaded ejector pin according to claim 1, characterized in that, The hole measuring device (3) includes a hole measuring head (31) and a hole measuring driver (32); The end of the measuring head (31) is provided with a measuring needle (311), and the measuring driver (32) drives the measuring head (31) to approach or move away from the conductive hole of the needle.

5. The needle height detection structure of a spring-loaded ejector pin according to claim 4, characterized in that, The measuring head (31) has limiting parts (312) on both sides of its end that restrict the connector outer wall.

6. The needle height detection structure of a spring-loaded ejector pin according to claim 1, characterized in that, The flipping device (4) includes a flipping driver (41) and a negative pressure suction seat (42). The negative pressure suction seat (42) is used to attach the connector; The flip driver (41) drives the negative pressure suction seat (42) to flip 180°.

7. The needle height detection structure of a spring-loaded ejector pin according to claim 6, characterized in that, The negative pressure suction seat (42) is provided with a limiting groove (421), and a limiting strip (422) for carrying the connector is provided in the limiting groove (421).

8. The needle height detection structure of a spring-loaded ejector pin according to claim 1, characterized in that, The pressure needle adjustment device (5) includes a pressure needle driver (51) and a pressure head (52); The pressure pin driver (51) drives the pressure head (52) to move closer to or away from the pin of the connector.

9. The needle height detection structure of a spring-loaded ejector pin according to claim 8, characterized in that, The pressure needle driver (51) is provided with an adjustment slide groove (511), and the pressure head (52) is fixed in the adjustment slide groove (511).

10. The needle height detection structure of a spring-loaded ejector pin according to claim 1, characterized in that, The visual inspection device (6) includes a visual inspection instrument (61) and a supplementary light (62). The supplementary light (62) is used to project light onto the connector; The vision inspection instrument (61) is used to detect the height of the connector pins.

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