Automatic interface test module

Abstract

The utility model relates to the technical field of plug-in test, and discloses an interface automatic test module, which comprises an upper needle plate, a mounting seat connected to the upper needle plate, a pressing cylinder fixed on the mounting seat, a plug-in assembly connected to the output end of the pressing cylinder in a sliding manner, and a roller assembly, the rolling wheel assembly comprises a rolling wheel limiting frame and rolling wheels arranged on the rolling wheel limiting frame, the rolling wheel limiting frame is fixedly connected to the lower portion of the downward-pressing air cylinder through the installation base, and the inserting assembly comprises an inclined block base and a limiting clamping block arranged below the inclined block base. The limiting clamping block downwards extends out of the upper needle plate, and when the downward pressing air cylinder drives the inclined block base to move downwards, the guide inclined face on the inclined block base makes contact with the rolling wheel to achieve transverse movement of the limiting clamping block, so that insertion of an interface is completed, and testing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of plug-in testing technology, and in particular to an automatic interface testing module. Background Technology

[0002] Currently, a smaller DIMM test interface—SO-DIMM—has appeared on PCBA boards. This interface is approximately 73.7mm*7.81mm*7.45mm (length*width*height) and has about 261 pins that need to be tested. Each pin requires about 0.23N of insertion and extraction force. As shown in the figure, SO-DIMM interface. According to the relevant test requirements of SO-DIMM interface, those skilled in the art have designed a method to realize automatic module testing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic interface testing module that inserts the adapter card into the SO-DIMM interface for testing.

[0004] The technical solution of this utility model is as follows: an automatic interface testing module, including an upper needle plate, a mounting base connected to the upper needle plate, a pressing cylinder fixed on the mounting base, an insertion component slidably connected to the output end of the pressing cylinder, and a roller assembly. The roller assembly includes a roller limiting frame and a roller disposed on the roller limiting frame. The roller limiting frame is fixedly connected to the lower part of the pressing cylinder through the mounting base. The insertion component includes a wedge seat and a limiting clamping block disposed below the wedge seat. The limiting clamping block extends downward from the upper needle plate. When the pressing cylinder drives the wedge seat to move downward, the guide slope on the wedge seat contacts the roller, realizing the lateral movement of the limiting clamping block, thereby completing the insertion and testing of the interface.

[0005] As can be seen from the above scheme, the pressing cylinder is used to drive the roller to move up and down. After the roller contacts the guide slope, it moves obliquely along the guide slope. The limiting clamp is used to limit the insertion of the jack. This utility model mainly uses the pressing cylinder to convert vertical up and down into oblique insertion movement for testing, thereby protecting the connector from damage and improving the test life and test stability.

[0006] The bottom of the limiting clamp block has two sets of limiting grooves arranged side by side, and the limiting grooves are downward opening. The side wall of the limiting clamp block has several limiting insertion holes that penetrate the limiting grooves. It can be seen that the limiting grooves are used to limit and clamp the adapter card, and the limiting insertion holes are used to insert fasteners to achieve the limiting function.

[0007] The bottom of the inclined block seat is fixedly connected to the limiting clamping block via a connecting rod, and the connecting rod extends downward from the inclined block seat.

[0008] A guide limiting seat is correspondingly provided below the downward pressing cylinder. The guide limiting seat is fixedly connected to the mounting base on both sides. A guide post is horizontally arranged on the guide limiting seat, and a guide seat is sleeved on the guide post. The guide seat slides in cooperation with a first slide rail on the guide limiting seat through a first slider. It can be seen that the guide limiting seat is used to achieve guiding and limiting, and the first slide rail is used for smooth movement when converting vertical up and down to oblique insertion motion.

[0009] The roller assembly also includes a roller limiting bracket, which is rotatably connected to the roller on both sides and is fixedly connected to the guide limiting seat. Therefore, the roller limiting bracket is used to limit the connection of the roller.

[0010] The output end of the downward-pressing cylinder is equipped with a connecting block, and the top of the inclined block seat slides in conjunction with a second slide rail at the bottom of the connecting block via a second slider. Therefore, the second slide rail is used to achieve stable movement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0013] Figure 3 This is a partial structural schematic diagram of the present invention;

[0014] Figure 4 This is a structural schematic diagram of the initial state of this utility model;

[0015] Figure 5 This is a structural diagram of the plug-in state of this utility model. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 5As shown, this utility model is an automatic interface testing module, including an upper needle plate 1, a mounting base 2 connected to the upper needle plate 1, a pressing cylinder 3 fixed to the mounting base 2, an insertion component slidably connected to the output end of the pressing cylinder 3, and a roller assembly 4. The roller assembly 4 includes a roller limiting frame 41 and a roller 42 disposed on the roller limiting frame 41. The roller limiting frame 41 is fixedly connected to the lower part of the pressing cylinder 3 through the mounting base 2. The insertion component includes a wedge seat 5 and a limiting clamp 6 disposed below the wedge seat 5. The limiting clamp 6 extends downward from the upper needle plate 1. When the pressing cylinder 3 drives the wedge seat 5 to move downward, the guide inclined surface 51 on the wedge seat 5 contacts the roller 42 to realize the lateral movement of the limiting clamp 6, thereby completing the insertion and testing of the interface. In this embodiment, the guide slope 51 and the roller 42 are two sets arranged horizontally side by side. The guide slope 51 is arranged corresponding to the roller 41. The guide slope 51 is inclined to the left from top to bottom. A PCBA board is mounted on the carrier plate 100. The upper needle plate 1 is fixedly arranged above the carrier plate 100.

[0018] The bottom of the limiting clamping block 6 has two sets of limiting clamping grooves 61 arranged side by side, and the limiting clamping grooves 61 are arranged downward. The side wall of the limiting clamping block 6 is provided with several limiting insertion holes 62 that penetrate the limiting clamping grooves 61. In this embodiment, the bottom of the limiting clamping block 6 has an arc transition, and the front side of the limiting clamping block 6 is set with an inclined surface to avoid damage. The limiting clamping block 6 limits the rotating card 200 through the limiting clamping grooves 61, which facilitates subsequent insertion testing of the PCBA board on the carrier board 100.

[0019] The bottom of the inclined block seat 5 is fixedly connected to the limiting clamping block 6 via a connecting rod 63, and the connecting rod 63 extends downward from the inclined block seat 5.

[0020] A guide limit seat 7 is provided below the pressing cylinder 3. The guide limit seat 7 is fixedly connected to the mounting base 2 on both sides. A guide post 71 is horizontally provided on the guide limit seat 7. A guide seat 72 is sleeved on the guide post 71. The guide seat 72 slides with the first slide rail 73 on the guide limit seat 7 through a first slider.

[0021] The roller assembly 4 also includes a roller limiting frame 41, which is rotatably connected to the roller on both sides and is fixedly connected to the guide limiting seat 7.

[0022] The output end of the downward pressure cylinder 3 is provided with a connecting block 31, and the top of the inclined block seat 5 is slidably engaged with the second slide rail 8 at the bottom of the connecting block via a second slider.

[0023] The working process of this utility model is as follows: the PCBA board is placed on the carrier board 100, the pressing cylinder 1 drives the inclined block seat 5 to move downward. At this time, the roller 42 contacts the guide inclined surface 51 on the inclined block seat 5. The inclined block seat 5 moves to the left while moving downward. The vertical up and down movement of the pressing cylinder 1 is converted into the inclined insertion movement (roller + inclined block + slide rail method) and then flattened to insert the adapter card 200 into the SO-DIMM interface for testing.

[0024] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic interface testing module, characterized in that: The device includes an upper needle plate (1), a mounting base (2) connected to the upper needle plate (1), a pressing cylinder (3) fixed to the mounting base (2), an insertion assembly slidably connected to the output end of the pressing cylinder (3), and a roller assembly (4). The roller assembly (4) includes a roller limit frame (41) and a roller (42) disposed on the roller limit frame (41). The roller limit frame (41) is fixedly connected to the lower part of the pressing cylinder (3) through the mounting base (2). The insertion assembly includes a wedge seat (5) and a limiting clamp (6) disposed below the wedge seat (5). The limiting clamp (6) extends downward from the upper needle plate (1). When the pressing cylinder (3) drives the wedge seat (5) to move downward, the guide slope (51) on the wedge seat (5) contacts the roller (42) to realize the lateral movement of the limiting clamp (6), thereby completing the insertion test of the interface.

2. The automatic interface testing module according to claim 1, characterized in that: The bottom of the limiting clamp (6) is provided with two sets of limiting clamp grooves (61) arranged side by side. The limiting clamp grooves (61) are arranged to open downwards. The side wall of the limiting clamp (6) is provided with several limiting insertion holes (62) that penetrate the limiting clamp grooves (61).

3. The automatic interface testing module according to claim 1, characterized in that: The bottom of the inclined block seat (5) is fixedly connected to the limiting clamp (6) via a connecting rod (63), and the connecting rod (63) extends downward out of the inclined block seat (5).

4. The automatic interface testing module according to claim 1, characterized in that: A guide limit seat (7) is provided below the lower cylinder (3). The guide limit seat (7) is fixedly connected to the mounting seat (2) on both sides. A guide post (71) is horizontally provided on the guide limit seat (7). A guide seat (72) is sleeved on the guide post (71). The guide seat (72) slides with the first slide rail (73) on the guide limit seat (7) through the first slider.

5. An automatic interface testing module according to claim 4, characterized in that: The roller assembly (4) also includes a roller limiting frame (41), which is rotatably connected to the roller on both sides and is fixedly connected to the guide limiting seat (7).

6. The automatic interface testing module according to claim 1, characterized in that: The output end of the downward cylinder (3) is provided with a connecting block (31), and the top of the inclined block seat (5) is slidably engaged with the second slide rail (8) at the bottom of the connecting block through the second slider.

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