A height detection device

Abstract

The utility model relates to a height detection device for detecting the height of connector PIN needle, the connector arranges a plurality of PIN needle, including pressing mechanism, it includes elastic element, pressing head and drive first driver that the pressing head removes, the pressing head is equipped with a plurality of first thimble and second thimble, the first thimble with second thimble all along the moving direction of the pressing head swing joint in the pressing head, and the elastic element along the moving direction pushes the first thimble and second thimble reset, detection element for detecting the height difference of first thimble with second thimble. The utility model effectively improves PIN needle's height detection precision, also significantly reduced the cost of detection device.

Description

Technical Field

[0001] This utility model relates to the field of detection equipment technology, and in particular to a height detection device. Background Technology

[0002] As a core component in electronic devices that enables signal transmission and power connection, the connector's internal metal pins, with their consistent height, directly determine the reliability of the contact between the connector and the mating terminals. In fields such as automotive electronics, the height tolerance of the pins typically needs to be controlled within a very small range. If the height is not up to standard, it can lead to increased contact resistance and signal attenuation, or even cause short circuits or malfunctions in the equipment. Therefore, pin height detection is an indispensable and critical quality control step in the connector manufacturing process.

[0003] Traditional inspection relies heavily on 3D camera measurements. However, for scenarios involving tiny pins or high-density arrangements, the imaging accuracy of 3D cameras is not high. Furthermore, 3D cameras require hardware and software coordination, which results in high maintenance and debugging thresholds and significantly increased inspection costs. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problems of high cost of 3D camera detection and low imaging accuracy for tiny, high-density arranged PIN pins in the prior art, and to provide a height detection device that effectively improves the height detection accuracy of PIN pins and significantly reduces the cost of the detection device.

[0005] To address the aforementioned technical problems, this utility model provides a height detection device for detecting the height of connector pins, wherein the connector has a plurality of pins arranged thereon, including...

[0006] A pressing mechanism includes an elastic element, a pressing head, and a first driver that drives the pressing head to move. The pressing head is provided with a plurality of first pins and second pins. The first pins and the second pins are movably connected to the pressing head along the moving direction of the pressing head, and the elastic element pushes the first pins and the second pins to reset along the moving direction.

[0007] A detection element is used to detect the height difference between the first ejector pin and the second ejector pin.

[0008] In one embodiment of the present invention, an XY servo moving mechanism is further included, which moves the pressing mechanism along the X-axis and Y-axis directions.

[0009] In one embodiment of this utility model, both the detection element and the pressing mechanism are disposed at the output end of the XY servo moving mechanism.

[0010] In one embodiment of the present invention, a lifting mechanism is further included. The lifting mechanism includes a second driver and a plurality of support columns disposed at the output end of the second driver. The plurality of support columns are arranged in an array. The second driver drives the plurality of support columns to move closer to the pressing head along the moving direction.

[0011] In one embodiment of this utility model, a plurality of the support columns are arranged facing the pressing head along the moving direction.

[0012] In one embodiment of the present invention, both the first ejector pin and the second ejector pin extend along the moving direction, and both the first ejector pin and the second ejector pin penetrate the pressing head.

[0013] In one embodiment of this invention, the detection element includes a laser sensor.

[0014] In one embodiment of this utility model, the laser sensor detects the height difference between the tip of the first pin and the tip of the second pin.

[0015] In one embodiment of this utility model, the pressing head is provided with a cavity, and the elastic element is disposed in the cavity.

[0016] In one embodiment of the present invention, the pressing head is provided with a through hole, the first ejector pin and the second ejector pin both penetrate the through hole, and the first ejector pin and the second ejector pin are both provided with a limiting shoulder, the bottom of the limiting shoulder abuts against the pressing head, and the limiting shoulder is located in the cavity.

[0017] In one embodiment of this utility model, the diameter of the second ejector pin is larger than the diameter of the first ejector pin.

[0018] In one embodiment of the present invention, a plurality of first ejector pins are respectively positioned opposite to a plurality of pins of the connector along the moving direction.

[0019] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0020] The height detection device of this utility model includes a first driver that drives the pressure head to move towards the connector, causing the second ejector pin to press against the reference surface of the connector. Multiple first ejector pins press against multiple pins of the connector respectively. After contacting the pins, the first ejector pins retract adaptively. The detection element detects the height of the pins by reading the height difference between the first and second ejector pins. After the pressure head leaves the connector, the first and second ejector pins automatically and quickly reset using elastic elements to ensure the repeatability accuracy of the next detection and improve the detection efficiency. The floating setting of the second ejector pin can avoid pressing the connector ring, thus improving the connector yield. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the height detection device in a preferred embodiment of the present invention;

[0023] Figure 2 for Figure 1 The diagram shows the structure of the XY servo moving mechanism.

[0024] Figure 3 for Figure 1 The diagram shows the structure of the pressing mechanism.

[0025] Figure 4 for Figure 3 The diagram shows the structure of the pressure head;

[0026] Figure 5 for Figure 1 The diagram shows the structure of the lifting mechanism.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Pressing mechanism; 11. Pressing head; 12. First driver; 13. First ejector pin; 131. Top tip of the first ejector pin; 14. Second ejector pin; 141. Top tip of the second ejector pin; 142. Limiting shoulder; 15. Cavity; 16. Lower connecting plate; 161. Through hole; 17. Upper connecting plate; 18. Bolt; 2. Detection element; 3. XY servo movement mechanism; 31. X-axis servo module; 32. Y-axis servo module; 4. Lifting mechanism; 41. Second driver; 42. Support column; 43. Base. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment of this utility model, a height detection device is disclosed, which is used to detect the height of connector PIN pins. The connector has a plurality of PIN pins arranged thereon. The detection device includes...

[0030] The pressing mechanism 1 includes an elastic element (not shown), a pressing head 11, and a first driver 12 that drives the pressing head 11 to move. The pressing head 11 is provided with a plurality of first ejector pins 13 and second ejector pins 14. The first ejector pins 13 and the second ejector pins 14 are movably connected to the pressing head 11 along the moving direction of the pressing head 11, and the elastic element pushes the first ejector pins 13 and the second ejector pins 14 to reset along the moving direction.

[0031] The detection element 2 is used to detect the height difference between the first ejector pin 13 and the second ejector pin 14.

[0032] In the height detection device described in this embodiment, the first driver 12 drives the pressure head 11 to descend vertically, the second ejector pin 14 presses against the reference surface of the connector, and multiple first ejector pins 13 press against multiple pins of the connector respectively. If there is a height difference among the multiple pins, the corresponding first ejector pin 13 will adaptively float upward after contacting the pin. At this time, a height difference is generated between the first ejector pin 13 and the second ejector pin 14. Using the second ejector pin 14 as a reference, the detection element 2 obtains the height of each pin by reading the height difference between each first ejector pin 13 and the second ejector pin 14, which greatly improves the accuracy of detection and reduces the cost of the detection device. After the pressure head 11 leaves the connector, the first ejector pins 13 and the second ejector pins 14 are quickly and automatically reset using elastic elements to ensure the repeatability accuracy of the next detection and improve the efficiency of detection. The floating setting of the second ejector pin 14 can avoid pressing the connector ring, thus improving the yield of the connector.

[0033] Reference Figure 4 As shown, in one embodiment of this utility model, there are 28 first ejector pins 13 and 1 second ejector pin 14. The 28 first ejector pins 13 correspond to the 28 pins of the connector. The pressing head 11 can fully cover the connector to achieve one-time testing.

[0034] Reference Figure 2 As shown, in one embodiment of this utility model, it further includes an XY servo moving mechanism 3. The XY servo moving mechanism 3 includes an X-axis servo module 31 and a Y-axis servo module 32. The Y-axis servo module 32 is connected to the output end of the X-axis servo module 31, and the pressing mechanism 1 is connected to the output end of the Y-axis servo module 32. The X-axis servo module 31 moves the Y-axis servo module 32 and the pressing mechanism 1 along the X-axis direction, and the Y-axis servo module moves the pressing mechanism 1 along the Y-axis direction. The servo module realizes the micron-level movement of the pressing mechanism 1, adapting to the detection requirements of connectors of different sizes.

[0035] Reference Figure 1As shown, in one embodiment of this utility model, the detection element 2 and the pressing mechanism 1 are both located at the output end of the Y-axis servo module 32, which can reduce the motion inertia of the detection element 2 and the pressing head 11 and improve the response speed.

[0036] Reference Figure 1 and Figure 5 As shown, in one embodiment of this utility model, a lifting mechanism 4 is further included for lifting the connector and reducing the stroke of the pressing head 11. Specifically, the lifting mechanism 4 includes a second driver 41 and a plurality of support columns 42 disposed at the output end of the second driver 41. The plurality of support columns 42 are arrayed to uniformly support the connector and ensure the horizontality of the connector. Before detection, the second driver 41 drives the plurality of support columns 42 to move closer to the pressing head 11 along the moving direction, so that the connector can be held in place by the first ejector pin 13 and the second ejector pin 14.

[0037] Reference Figure 5 As shown, in one embodiment of the present invention, four support columns 42 are fixed on a base 43, and the base 43 is connected to the output end of the second driver 41.

[0038] Reference Figure 3 and Figure 5 As shown, in one embodiment of this utility model, both the first driver 12 and the second driver 41 are preferably slide cylinders. The thrust of the slide cylinder is controllable, avoiding overload damage to the connector caused by lifting or pressing down.

[0039] Reference Figure 1 As shown, in one embodiment of this utility model, the moving direction is vertical, that is, the first driver 12 presses down the pressing head 11.

[0040] Reference Figure 1 As shown, in one embodiment of this utility model, a plurality of the support columns 42 are arranged directly opposite the pressing head 11 along the moving direction to ensure that the downward pressure transmission path of the pressing head 11 is perpendicular to the connector, thereby avoiding shear force damage to the connector.

[0041] Reference Figure 4 As shown, in one embodiment of the present invention, the first ejector pin 13 and the second ejector pin 14 both extend along the moving direction to ensure that the first ejector pin 13 and the second ejector pin 14 accurately press against the PIN pin and the reference surface in the axial direction, eliminating lateral sway; and the first ejector pin 13 and the second ejector pin 14 both penetrate the pressing head 11 so that the detection element 2 can read the height difference between the top of the first ejector pin 13 and the top of the second ejector pin 14.

[0042] In one embodiment of this utility model, the detection element 2 includes a laser sensor. The material cost of the laser sensor is low, and the laser sensor can directly process signals through a PLC or industrial control computer, saving a lot of computing costs.

[0043] Reference Figure 1 As shown, in one embodiment of this utility model, the laser sensor is positioned directly above the pressure head 11 to detect the height difference between the top tip 131 of the first ejector pin 13 and the top tip 141 of the second ejector pin 14. Both the top tip 131 of the first ejector pin 13 and the top tip 141 of the second ejector pin 14 are non-contact designs, which do not wear out with long-term use, facilitate laser sensor acquisition, and reduce detection errors caused by wear.

[0044] Reference Figure 3 As shown, in one embodiment of this utility model, the pressing head 11 includes an upper connecting plate 17 and a lower connecting plate 16 arranged vertically. The upper connecting plate 17 and the lower connecting plate 16 can be detachably connected by bolts 18, and a cavity 15 is formed between the upper connecting plate 17 and the lower connecting plate 16. The elastic element is disposed in the cavity 15, which facilitates disassembly and maintenance, saves external installation space, and forms a closed cavity 15 to reduce external dust and oil stains, thereby improving the life of the elastic element.

[0045] Reference Figure 3 As shown, in one embodiment of this utility model, the pressure head 11 is provided with a through hole 161, through which the first ejector pin 13 and the second ejector pin 14 pass. The first ejector pin 13 and the second ejector pin 14 are clearance-fitted with the through hole 161, ensuring smooth sliding while restricting radial freedom. Both the first ejector pin 13 and the second ejector pin 14 are provided with a limiting shoulder 142, located within the cavity 15, so that the elastic element sleeved on the first ejector pin 13 and the second ejector pin 14 abuts against the limiting shoulder 142, pushing the ejector pins to reset. In a non-natural state, the bottom of the limiting shoulder 142 abuts against the pressure head 11, and the limiting shoulder 142 is used to restrict the downward movement of the first ejector pin 13 and the second ejector pin 14.

[0046] In one embodiment of the present invention, the elastic element is preferably a spring, which is respectively sleeved on the first ejector pin 13 and the second ejector pin 14, with one upper end of the spring abutting against the pressing head 11 and the lower end of the spring abutting against the limiting shoulder 142.

[0047] Reference Figure 3 As shown, in one embodiment of the present invention, the diameter of the second ejector pin 14 is larger than the diameter of the first ejector pin 13, which is used to improve the bending stiffness of the second ejector pin 14 and also facilitates the laser sensor to quickly distinguish between the first ejector pin 13 and the second ejector pin 14.

[0048] In one embodiment of this utility model, a plurality of first pins 13 are respectively positioned opposite to a plurality of pins of the connector along the moving direction. During testing, each first pin 13 is strictly aligned with one pin to avoid data crosstalk caused by cross-pin testing.

[0049] The working principle of the height detection device described in this utility model is as follows:

[0050] After the connector to be tested is placed on the four support pillars 42, the second driver 41 lifts the connector to a predetermined height. Then, the XY servo moving mechanism 3 moves the pressing head 11 to directly above the connector. Subsequently, the first driver 12 presses down the pressing head 11 until the second pin 14 presses against the reference surface of the connector. If there is a height difference between multiple pins of the connector, the corresponding first pin 13 will adaptively float up, and the corresponding elastic element will be compressed. At this time, the detection element 2 reads the height difference between multiple first pins 13 and second pins 14 to obtain the height of each pin. After the test is completed, the first driver 12 lifts the pressing head 11, and the elastic element pushes the first pin 13 and the second pin 14 to reset, ready for the next test.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A height detection device for detecting the height of connector pins, said connector having a plurality of said pins arranged thereon, characterized in that, include, A pressing mechanism includes an elastic element, a pressing head, and a first driver that drives the pressing head to move. The pressing head is provided with a plurality of first pins and second pins. The first pins and the second pins are movably connected to the pressing head along the moving direction of the pressing head, and the elastic element pushes the first pins and the second pins to reset along the moving direction. A detection element is used to detect the height difference between the first ejector pin and the second ejector pin.

2. The height detection device according to claim 1, characterized in that, It also includes an XY servo moving mechanism, which moves the pressing mechanism along the X-axis and Y-axis directions.

3. The height detection device according to claim 2, characterized in that, Both the detection element and the pressing mechanism are located at the output end of the XY servo moving mechanism.

4. The height detection device according to claim 1, characterized in that, It also includes a lifting mechanism, which includes a second driver and a plurality of support columns disposed at the output end of the second driver. The plurality of support columns are arranged in an array, and the second driver drives the plurality of support columns to move closer to the pressure head along the moving direction.

5. A height detection device according to claim 4, characterized in that, The plurality of support columns are arranged directly opposite the pressing head along the moving direction.

6. The height detection device according to claim 1, characterized in that, Both the first ejector pin and the second ejector pin extend along the moving direction, and both the first ejector pin and the second ejector pin penetrate the pressing head.

7. A height detection device according to claim 1, characterized in that, The detection element includes a laser sensor.

8. A height detection device according to claim 7, characterized in that, The laser sensor detects the height difference between the tip of the first ejector pin and the tip of the second ejector pin.

9. A height detection device according to claim 1, characterized in that, The pressing head has a cavity, and the elastic element is disposed inside the cavity.

10. A height detection device according to claim 9, characterized in that, The pressing head is provided with a through hole, and the first ejector pin and the second ejector pin both penetrate the through hole. The first ejector pin and the second ejector pin are both provided with a limiting shoulder. The bottom of the limiting shoulder abuts against the pressing head, and the limiting shoulder is located in the cavity.

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