A precision positioning mechanism applied to a POGOPIN module

Abstract

The utility model provides a kind of precision positioning mechanism applied to POGO PIN module, which is equipped with multiple sets of guiding and positioning mechanisms, realizes accurate positioning of probe, makes probe fully contact with product circuit, and greatly improves the feasibility of product testing, including driving motor, guiding and buffering module and needle mold fixed module, the output end of the driving motor is fixedly connected with the guiding and buffering module, the guiding and buffering module includes shell body, a plurality of rectangular springs built in the shell body and a plurality of alignment shafts fixedly arranged on the shell body and vertically upwardly extended, a linear bearing is sleeved on the alignment shaft, the lower end of the rectangular spring extends to the outside of the shell body and is connected with the needle mold fixed module, a longitudinal gap is provided between the guiding and buffering module and the needle mold fixed module, and the bottom of the needle mold fixed module is connected with signal adapter plate and floating probe group. The utility model is suitable for printed circuit board online testing technical field.

Description

Technical Field

[0001] This utility model relates to the field of online testing technology for printed circuit boards, and in particular to a precision positioning mechanism applied to POGO PIN modules. Background Technology

[0002] POGO PINs are spring-loaded probes formed by pressing together a pin shaft, spring, and pin tube. They are typically gold-plated to enhance corrosion resistance and electrical performance. Connectors using these probes are primarily used for current transmission and signal connection in electronic devices. They offer advantages such as reduced device weight and smaller size, and are widely used in mobile phones, automotive electronics, medical devices, and aerospace. However, existing testing equipment using POGO PIN modules suffers from issues such as inaccurate positioning, probe point misalignment, scratching of tested products, and even product deformation. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a precision positioning mechanism for POGO PIN modules that employs multiple sets of guiding and positioning mechanisms to achieve precise probe positioning, ensuring full contact between the probe and the product circuitry, thereby significantly improving the product testing feasibility.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes a drive motor, a guide buffer module, and a needle mold fixing module. The output end of the drive motor is fixedly connected to the guide buffer module. The guide buffer module includes an outer shell, several rectangular springs built into the outer shell, and several alignment shafts fixedly arranged on the outer shell and extending vertically upward. Linear bearings are sleeved on the alignment shafts. The lower ends of the rectangular springs extend out of the outer shell and are connected to the needle mold fixing module. A longitudinal gap is provided between the guide buffer module and the needle mold fixing module. The bottom of the needle mold fixing module is connected to a signal adapter board and a floating probe group.

[0005] Furthermore, a plurality of equal-height screws are arranged in an array within the outer casing, and the rectangular spring is sleeved on the corresponding equal-height screw.

[0006] Furthermore, the needle mold fixing module is also provided with several symmetrically arranged positioning shafts, which are arranged vertically downward and penetrate the signal adapter board and the floating probe group.

[0007] Furthermore, several sets of guide posts are provided at the bottom of the needle mold fixing module. The guide posts pass through the signal adapter plate and are connected to the floating probe group at the bottom.

[0008] Finally, a number of support pins are provided at the bottom of the needle mold fixing module. The support pins pass through the signal adapter plate, and a limiting frustum is provided at the bottom. The limiting frustum is connected to the floating probe group.

[0009] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention uses a drive motor to power the floating probe assembly towards the product under test. During this process, the alignment shaft, in conjunction with the linear bearing, ensures that the entire assembly does not shift during lifting and lowering. The structure of several rectangular springs working with the equal-height screws ensures that the lower surface is parallel to the product under test during downward pressure, while also acting as a buffer to reduce the vertical load on the product and prevent damage. The positioning shafts, support pins, and guide columns further ensure the stability of the lifting and lowering process, ultimately guaranteeing full contact between the probe and the product without pin point deviation. Therefore, this invention employs multiple sets of guiding and positioning mechanisms to achieve precise probe positioning, ensuring full contact between the probe and the product circuitry, greatly improving the feasibility of product testing. Attached Figure Description

[0010] Figure 1 This is an axial schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is an exploded axial view of the overall structure of this utility model. Detailed Implementation

[0012] like Figures 1 to 2As shown, this utility model includes a drive motor 1, a guide buffer module 2, and a needle mold fixing module 3. The output end of the drive motor 1 is fixedly connected to the guide buffer module 2. The guide buffer module 2 includes a housing 20, a plurality of rectangular springs 21 built into the housing 20, and a plurality of alignment shafts 22 fixedly mounted on the housing 20 and extending vertically upward. Linear bearings 23 are sleeved on the alignment shafts 22. The lower ends of the rectangular springs 21 extend outside the housing 20 and are connected to the needle mold fixing module 3. A longitudinal gap is provided between the guide buffer module 2 and the needle mold fixing module 3. The bottom of the needle mold fixing module 3 is connected to a signal adapter board 4 and a floating probe group 5. A plurality of equal-height screws 24 are also arranged in an array inside the housing 20, and the rectangular springs 21 are sleeved on the corresponding equal-height screws 24. This invention utilizes the drive motor 1 to power the entire floating probe assembly 5, pressing it down onto the product under test. This ensures the probes make full contact with the product. During the process, the linear bearing 23 and the alignment shaft 22 work together to maintain vertical movement and prevent deviation. The equalizing screws 24 and the rectangular spring 21 ensure the lower surface of the floating probe assembly 5 remains parallel to the surface of the product under test during the pressing process. A gap exists between the guide buffer module 2 and the needle mold fixing module 3, which, together with the rectangular spring 21, provides a buffering effect, reducing the vertical load on the product under test and preventing damage. In this invention, four alignment shafts 22 and four equalizing screws 24 are arranged in an array on the outer casing 20 to maintain balance.

[0013] In this invention, the needle mold fixing module 3 is further provided with several symmetrically arranged positioning shafts 30. The positioning shafts 30 are vertically downward and penetrate the signal adapter plate 4 and the floating probe group 5. Several sets of guide posts 31 are also provided at the bottom of the needle mold fixing module 3. The guide posts 31 pass through the signal adapter plate 4 and are connected to the floating probe group 5 at their bottom. Several support pins 32 are also provided at the bottom of the needle mold fixing module 3. The support pins 32 pass through the signal adapter plate 4 and are connected to a limiting frustum 33 at their bottom. The limiting frustum 33 is connected to the floating probe group 5. Under the action of the positioning shafts 30, the guide posts 31, and the support pins 32, it is further ensured that the floating probe group 5 will not deviate during lifting and lowering. At the same time, the limiting frustum 33 limits the vertical stroke of the floating probe group 5, ensuring that the probes fully contact the product under test without excessive downward pressure, which could damage the product or the probes.

[0014] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision positioning mechanism for POGO PIN modules, characterized in that: The device includes a drive motor (1), a guide buffer module (2), and a needle mold fixing module (3). The output end of the drive motor (1) is fixedly connected to the guide buffer module (2). The guide buffer module (2) includes an outer shell (20), several rectangular springs (21) built into the outer shell (20), and several alignment shafts (22) fixedly installed on the outer shell (20) and extending vertically upward. A linear bearing (23) is sleeved on the alignment shaft (22). The lower end of the rectangular spring (21) extends outside the outer shell (20) and is connected to the needle mold fixing module (3). A longitudinal gap is provided between the guide buffer module (2) and the needle mold fixing module (3). The bottom of the needle mold fixing module (3) is connected to the signal adapter board (4) and the floating probe group (5).

2. The precision positioning mechanism for a POGO PIN module according to claim 1, characterized in that: A plurality of equal-height screws (24) are arranged in an array inside the outer casing (20), and the rectangular spring (21) is sleeved on the corresponding equal-height screw (24).

3. The precision positioning mechanism for a POGO PIN module according to claim 2, characterized in that: The needle mold fixing module (3) is also provided with a number of symmetrically arranged positioning shafts (30). The positioning shafts (30) are arranged vertically downward and penetrate the signal adapter plate (4) and the floating probe group (5).

4. The precision positioning mechanism for a POGO PIN module according to claim 3, characterized in that: Several sets of guide posts (31) are also provided at the bottom of the needle mold fixing module (3). The guide posts (31) pass through the signal adapter plate (4) and are connected to the floating probe group (5) at the bottom.

5. The precision positioning mechanism for a POGO PIN module according to claim 4, characterized in that: Several support pins (32) are also provided at the bottom of the needle mold fixing module (3). The support pins (32) pass through the signal adapter plate (4). A limiting frustum (33) is also provided at the bottom. The limiting frustum (33) is connected to the floating probe group (5).

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