A multiport plug device for a test apparatus

Abstract

The utility model provides a kind of multi-port plug device for test equipment, including plug drive device and plug rectification device;Plug drive device includes handle, hingedly installed lever, connecting rod and push rod, guiding fixed seat and slide rail pair, and push plate assembly;Plug rectification device includes mounting plate, and several plug assemblies installed in parallel on the front side of mounting plate, plug assembly includes mounting seat, guide column at least one end slidingly installed between mounting plate and mounting seat along plug direction, buffer spring is sleeved on guide column, four cylindrical steel needles are fixedly arranged on the front end of mounting seat along plug direction, and plug-in seat is fixed on the front end of four steel needles;Four steel needles are distributed in the four corners of rectangle.Translational plug is simultaneously pushed by plug drive device to several groups of plug assemblies, and each group of plug assemblies is automatically rectified by the flexible deformation of steel needle, which not only improves plug efficiency, but also does not damage the plug interface of the device under test.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a multi-port plug-in device for testing equipment. Background Technology

[0002] Before leaving the factory, switch equipment needs to undergo batch testing. However, due to the large number of its ports and their dense matrix arrangement, manually plugging and testing each port is too inefficient. Therefore, it is necessary to design a dedicated automatic port plugging device. However, the devices under test not only have a large number of ports, but also have slight offsets or even slight swaying due to assembly errors. Therefore, when using an automatic plugging device, it is necessary to ensure that a sufficient number of ports can be plugged simultaneously to achieve the required efficiency, while also ensuring that all ports are properly aligned. Otherwise, if any port is not properly aligned, the overall plugging force will damage the port of the device under test. This presents a considerable design challenge. Existing automatic plugging devices with similar functions on the market usually have a telescopic spring that is easily deformed along the plugging direction on the test equipment, and the plug is fixed to the free end of the spring. A guide rod is inserted along the center line of the spring. The plug and the guide rod have a gap to allow the plug to deflect. The spring's swaying corrects the alignment and returns the device to center, while the spring's extension and contraction buffer the plugging and unplugging force. However, with prolonged use and repeated insertion and removal, the compression spring is prone to slight deformation, which may cause the connector to fail to return to the center position. This can lead to excessive misalignment of the connector during automatic insertion in subsequent tests, resulting in damage to the tested equipment. Therefore, this insertion and removal structure is not suitable for this test equipment. Utility Model Content

[0003] The purpose of this invention is to provide a multi-port plug-in / plug-out device that can improve plug-in / plug-out efficiency without damaging the device under test.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A multi-port plug-in / plug-out device for testing equipment includes a plug-in / plug-out driving device and a plug-in / plug-out alignment device connected to the front end of the driving device. The driving device includes an L-shaped lever, a handle fixed to a first end of the lever, a connecting rod whose first end is hinged to the fulcrum of the lever, a fixed seat hinged to a second end of the connecting rod, a push rod whose first end is hinged to the second end of the lever and slides through the fixed seat, a push plate assembly connected to the second end of the push rod, and a slide rail pair guiding the push plate assembly. The alignment device includes a mounting plate that can be fixed to the push plate assembly, and a parallel... A plurality of plug-in assemblies are mounted on the front side of the mounting plate. Each plug-in assembly includes a mounting base parallel to the front side of the mounting plate, a guide post connected between the mounting plate and the mounting base along the plugging direction and slidably mounted at least one end, a buffer spring sleeved on the guide post and with both ends abutting against the space between the mounting plate and the mounting base, four cylindrical steel pins fixed to the front end of the mounting base along the plugging direction, and a plug-in base fixed to the front end of the four steel pins. The four steel pins are distributed at the four corners of a rectangle, and the steel pins can undergo elastic deformation perpendicular to their length direction under the action of external force.

[0006] In a preferred embodiment, the insertion / removal driving device and the insertion / removal correction device are detachably connected. Specifically, the front side of the push plate assembly has a plurality of positioning posts arranged along the insertion direction, and the mounting plate has positioning holes corresponding to each of the positioning posts; the push plate assembly is also provided with a bolt that can be threaded into the mounting plate.

[0007] In a preferred embodiment, the push rod located between the fixed base and the push plate assembly is a fine-tuning section with an adjustable length. Specifically, the front end of the push rod has a T-head, and the push plate assembly has a T-slot for holding the T-head. There is a gap between the front end face of the T-head and the front inner wall of the T-slot, and the push rod is threaded with a nut for adjusting the maximum position of the T-head extending forward into the T-slot.

[0008] In a preferred embodiment, the distribution centers of the plurality of guide posts coincide with the distribution centers of the four steel needles.

[0009] In a preferred embodiment, the deflection of the steel needle during the insertion process does not exceed 5 mm.

[0010] In a preferred embodiment, the rear end of the guide post is slidably mounted on the mounting plate, while the front end is fixed to the mounting base, and the rear end of the guide post has a limiting portion that restricts it from moving forward away from the mounting plate.

[0011] In a preferred embodiment, the plug-in device comprises multiple sets arranged side by side, and each set of the plug-in device has 24 sets of plug-in components arranged in a matrix on its mounting plate.

[0012] The beneficial effects of this utility model are: by using a plug-in / plug-out drive device to simultaneously push several sets of plug-in / plug-out components to translate along the slide rail pair for plugging and unplugging, and each set of plug-in / plug-out components completes automatic correction through the flexible deformation of the steel needle, which not only improves the plugging and unplugging efficiency, but also ensures stable force and accurate alignment during the plugging and unplugging process, and will not damage the plug interface of the device under test. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic insertion device in the embodiment;

[0015] Figure 2 This is a schematic diagram of the plug-in / plug-out drive device in the embodiment;

[0016] Figure 3 for Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a schematic diagram of the insertion / removal correction device in the embodiment;

[0018] Figure 5 This is a schematic diagram of the structure of a single pluggable assembly in the embodiment. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. In detailing the embodiments of the present invention, for ease of explanation, the drawings illustrating the device structure will be partially enlarged without adhering to the general scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. It should be noted that the drawings are simplified and use non-precise scales, intended only to facilitate and clearly illustrate the embodiments of the present invention. Additionally, in the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Terms such as "left," "right," "upper," and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, not indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] refer to Figures 1 to 5 As shown, a multi-port plug-in / plug-out device for testing equipment includes a plug-in / plug-out driving device 1 and a plug-in / plug-out correction device 2 connected to the front end of the plug-in / plug-out driving device 1. The plug-in / plug-out driving device 1 includes an L-shaped lever 11, a handle 12 fixed to a first end of the lever 11, a connecting rod 13 with its first end hinged to the fulcrum of the lever 11, a fixed seat 14 hinged to a second end of the connecting rod 13, a push rod 15 with its first end hinged to the second end of the lever 11 and sliding through the fixed seat 14, a push plate assembly 16 connected to the second end of the push rod 15, and a slide rail pair 17 guiding the push plate assembly 16. The plug-in / plug-out correction device 2 includes a mounting plate 21 that can be fixed to the push plate assembly 16, and a mounting plate 21 mounted in parallel with the push plate assembly 16. The mounting plate 21 has several plug-in components 22 on its front side. Each plug-in component 22 includes a mounting base 221 parallel to the front side of the mounting plate 21, a guide post 222 connected between the mounting plate 21 and the mounting base 221 along the plugging direction and slidably mounted at least one end, a buffer spring 223 sleeved on the guide post 222 and abutting against the mounting plate 21 and the mounting base 221 at both ends, four cylindrical steel pins 224 fixed to the front end of the mounting base 221 along the plugging direction, and a plug-in seat 225 fixed to the front end of the four steel pins 224. The four steel pins 224 are distributed at the four corners of a rectangle, and the steel pins 224 can undergo elastic deformation perpendicular to their length direction under the action of external force.

[0022] During testing, the operating handle 12 rotates, causing the push rod 15 to move forward through the combined force of the lever 11 and connecting rod 13, with the stability of the translation ensured by the slide rail pair 17. The plug-in base 225 is used to fix the plug connector. The plug-in base 225 uses four steel pins 224 distributed at the four corners of a rectangle to elastically deform perpendicular to the length of the steel pins 224 to achieve alignment. The four steel pins 224 mutually restrict deformation, ensuring that the main yaw direction of the plug-in base 225 is two perpendicular directions parallel to the two adjacent sides of the rectangle where the four steel pins 224 are distributed. Appropriate torsional deformation is also possible. This is similar to the offset method of the plug interface of the device under test, i.e., the device under test... The connector is square and has an installation gap, so the offset direction of the connector is mainly in two vertical directions, making it easier to align. Moreover, compared with the telescopic spring, the steel pin 224 is not affected by the insertion and extraction tension force, is not prone to fatigue deformation, and can always be centered and reset. The spring 223 provides buffering for the insertion and extraction direction. The insertion and extraction drive device 1 simultaneously pushes several sets of insertion and extraction components 22 to move along the slide rail pair 17 for insertion and extraction. Each set of insertion and extraction components 22 completes automatic correction through the flexible deformation of the steel pin 224. This not only improves the insertion and extraction efficiency, but also ensures stable force and accurate alignment during the insertion and extraction process, without damaging the connector of the device under test.

[0023] In a preferred embodiment, the insertion / removal driving device 1 and the insertion / removal correction device 2 are detachably connected. Specifically, the front side of the push plate assembly 16 has several positioning posts 161 arranged along the insertion direction, and the mounting plate 21 has positioning holes corresponding to each positioning post 161; the push plate assembly 16 is also provided with a bolt 162 that can be threaded into the mounting plate 21. This detachable connection allows the insertion / removal driving device 1 to be removed after each connector is inserted, providing more space for testing operations.

[0024] In a preferred embodiment, the section of the push rod 15 located between the fixed base 14 and the push plate assembly 16 is an adjustable section. Specifically, the front end of the push rod 15 has a T-head 151, and the push plate assembly 16 has a T-slot 163 for holding the T-head 151. There is a gap between the front end face of the T-head 151 and the front inner wall of the T-slot 163. A nut 152 is threaded onto the push rod 15 to adjust the maximum forward extension of the T-head 151 into the T-slot 163. By adjusting the position of the nut 152, the depth of the push rod 15 into the push plate assembly 16 can be finely adjusted, thereby finely adjusting the maximum forward movement position of the push plate assembly 16 to suit different situations.

[0025] In a preferred embodiment, the distribution centers of the plurality of guide posts 222 coincide with the distribution centers of the four steel pins 224. This ensures that the connector is subjected to balanced forces during insertion, removal, extension, and retraction.

[0026] In a preferred embodiment, the deflection of the steel needle 224 during the insertion process does not exceed 5 mm. The connector only needs slight swaying to complete automatic correction, and the steel needle 224 does not need to undergo large deformation. Therefore, a steel needle 224 with sufficient strength can be selected.

[0027] In a preferred embodiment, the rear end of the guide post 222 is slidably disposed on the mounting plate 21, while the front end is fixed to the mounting base 221. The rear end of the guide post 222 has a limiting portion that restricts it from moving forward away from the mounting plate 21.

[0028] In a preferred embodiment, the insertion and removal device includes multiple groups arranged in parallel, and each group of insertion and removal devices has 24 groups of insertion and removal components 22 arranged in a matrix on its mounting plate 21. Dividing a large number of insertion and removal components 22 into several groups can ensure high insertion and removal efficiency while avoiding misalignment caused by the superposition of errors in too many insertion and removal components 22.

[0029] The above description does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A multi-port plug-in / plug-out device for testing equipment, characterized in that: The device includes a plug-in / plug-out drive mechanism and a plug-in / plug-out alignment device connected to the front end of the drive mechanism. The drive mechanism includes an L-shaped lever, a handle fixed to a first end of the lever, a connecting rod with its first end hinged to the fulcrum of the lever, a fixed seat hinged to a second end of the connecting rod, a push rod with its first end hinged to the second end of the lever and slidingly passing through the fixed seat, a push plate assembly connected to the second end of the push rod, and a slide rail pair guiding the push plate assembly. The alignment device includes a mounting plate that can be fixed to the push plate assembly, and a mounting plate mounted side-by-side on the push plate assembly. The mounting plate has several plug-in components on its front side. Each plug-in component includes a mounting base parallel to the front side of the mounting plate, a guide post connected between the mounting plate and the mounting base along the plugging direction and slidably mounted at least one end, a buffer spring sleeved on the guide post and with both ends abutting against the space between the mounting plate and the mounting base, four cylindrical steel pins fixed to the front end of the mounting base along the plugging direction, and a plug-in base fixed to the front end of the four steel pins. The four steel pins are distributed at the four corners of a rectangle, and the steel pins can undergo elastic deformation perpendicular to their length direction under external force.

2. The multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The insertion / removal driving device and the insertion / removal correction device are detachably connected. Specifically, the front side of the push plate assembly has several positioning posts arranged along the insertion direction, and the mounting plate has positioning holes corresponding to each positioning post. The push plate assembly is also provided with a bolt that can be threaded into the mounting plate.

3. The multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The push rod has an adjustable length fine-tuning section located between the fixed base and the push plate assembly. Specifically, the front end of the push rod has a T-head, and the push plate assembly has a T-slot for holding the T-head. There is a gap between the front end face of the T-head and the front inner wall of the T-slot. The push rod is threaded with a nut for adjusting the maximum position of the T-head extending forward into the T-slot.

4. The multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The distribution centers of some of the guide posts coincide with the distribution centers of the four steel needles.

5. A multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The deflection of the steel needle during the insertion process shall not exceed 5 mm.

6. A multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The rear end of the guide post slides through the mounting plate, while the front end is fixed to the mounting base. The rear end of the guide post has a limiting part that restricts it from moving forward away from the mounting plate.

7. A multi-port plug-in / plug-out device for testing equipment according to claim 1, characterized in that: The plugging and unplugging device includes multiple sets arranged in parallel, and each set of the plugging and unplugging device has 24 sets of plugging and unplugging components arranged in a matrix on its mounting plate.

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