Plug insertion and extraction force testing machine

Abstract

The utility model relates to a plug plugging force testing machine, which is characterized in that a base is provided with an expansion piece which protrudes upwards and can adjust the height of the tail end, and the base is provided with two upright posts which are distributed on two sides of the expansion piece and are symmetrically arranged; a jig used for fixing a plug is arranged at the tail end of the expansion piece, a lifting mechanism is installed on the two stand columns, the lifting mechanism is provided with a lifting base, a force measuring sensor and an automatic aligning clamp which are sequentially connected in series from top to bottom, and the automatic aligning clamp is used for clamping a socket and enabling a jack of the socket to be vertically downward; the lifting seat moves downwards, so that the jack of the socket is plugged with the plugging pin of the plug, and the force transducer records a plugging force value and outputs the plugging force value to the control system; and through upward movement of the lifting seat, the jack of the socket is separated from the plugging pin of the plug, and the force measuring sensor records the pulling-out force value and outputs the pulling-out force value to the control system. Manual plugging is replaced by mechanical plugging, the influence of personal errors is reduced, the testing precision of the plugging force is improved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector testing technology, specifically to a plug insertion and extraction force testing device. Background Technology

[0002] The contacts of electrical connectors are crucial components, and their performance directly impacts the connector's electrical, mechanical, and environmental properties. The insertion and extraction force of the contacts directly affects the connector's operating current, contact resistance, and mechanical lifespan. If the insertion and extraction force is too weak, poor contact or open circuits are likely to occur in actual use; if the force is too high, mating may fail, and repeated insertions and removals may damage the connector components. Therefore, it is necessary to test the insertion and extraction force of electrical connectors (plugs and sockets). Insertion and extraction force includes insertion force and separation force. Currently, insertion and extraction force testing between plugs and sockets is mainly done manually, by having operators manually insert and pull the plugs to determine the insertion and separation forces. However, this method is greatly affected by human factors, such as the operator's strength, lifting speed, and lifting direction, which significantly influence the test results, and different operators will yield different results. Summary of the Invention

[0003] The purpose of this invention is to provide a plug insertion and extraction force testing machine that mechanically replaces manual insertion and extraction, reduces the impact of human error, and enables the measurement results to be fed back to the production end, thereby controlling the size of the plug insertion and extraction and ensuring product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A plug insertion and extraction force testing machine includes a base with a control system, a telescopic device that protrudes upward and can adjust the height of the end on the base, and two uprights that are distributed on both sides of the telescopic device and arranged symmetrically on the base.

[0006] The telescopic device is provided with a fixture at its end, which is used to fix the plug and make the plug pins face vertically upward.

[0007] A lifting mechanism is installed on the two columns. The lifting mechanism has a lifting seat, a force sensor and an automatic self-aligning clamp connected in series from top to bottom. The automatic self-aligning clamp is used to hold the socket and make the socket's plug face vertically downward.

[0008] The lifting platform moves downward to align the socket's outlet with the plug's pins, and a force sensor records the insertion force value and outputs it to the control system; conversely, the lifting platform moves upward to separate the socket's outlet from the plug's pins, and a force sensor records the extraction force value and outputs it to the control system.

[0009] The above solution is further described in that the lifting seat is sleeved on the column through a guide hole, and the lifting mechanism also has two lead screws installed on the base and erected from bottom to top. The two lead screws are located between the two columns, and the two lead screws are respectively distributed on both sides of the telescopic device and parallel to the columns. The two lead screws are connected to the threaded holes preset on the lifting seat, so that when the two lead screws rotate synchronously, they drive the lifting seat to move up and down.

[0010] A further improvement in the above scheme is that the telescopic device is a manually adjustable telescopic column.

[0011] A further improvement in the above solution is that the fixture is a clamp with a quick clamp.

[0012] A further aspect of the above solution is that the lower ends of the two lead screws are respectively connected to a synchronous belt via synchronous pulleys, and the synchronous belt is also connected to the output end of the motor, with the motor mounted on the base.

[0013] Furthermore, in the above scheme, the upper ends of the two columns are connected together by a crossbeam, and the upper ends of the two lead screws are respectively assembled onto the crossbeam by bearings.

[0014] By adopting the above structure, the present invention achieves the following beneficial effects:

[0015] 1. The socket moves up and down by lifting the base, thereby enabling the socket's plug and plug pins to be inserted and separated. The speed and angle of insertion and lifting can be precisely controlled, avoiding the influence of human factors on the insertion and extraction force.

[0016] 2. By recording the insertion and extraction force values ​​through a force sensor and outputting them to the control system, the insertion force can be tested and detected. Compared with existing technologies, this invention can reduce test deviations caused by human error and improve the testing accuracy of insertion and extraction force. It can also feed the test results back to the production end, thereby controlling the size of the plug and connector and ensuring product quality.

[0017] 3. By fixing the plug with a fixture and holding the socket with an automatic self-aligning clamp, it can be adapted to test plugs and sockets of different sizes, increasing the range of applications and making it highly practical. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Appendix Figure 2 for Figure 1 A front view of the embodiment;

[0020] Appendix Figure 3 for Figure 1 Top view of the embodiment;

[0021] Appendix Figure 4 for Figure 1 A magnified schematic diagram of a partial structure in the embodiment. Detailed Implementation

[0022] The following will further explain the concept, specific structure and technical effects of the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model.

[0023] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0024] See Figure 1 , 2 Figures 3 and 4 show schematic diagrams of a preferred embodiment of this utility model. This utility model relates to a plug insertion / extraction force testing machine, including a base 1 with a control system. The base 1 also has an upwardly protruding telescopic device 2 that can adjust the height of its end. Two uprights 3 are symmetrically arranged on both sides of the telescopic device 2 on the base 1. A fixture 21 is provided at the end of the telescopic device 2, which is used to fix a plug 4 and ensure that the plug pins of the plug 4 are vertically upward. A lifting mechanism is installed on the two uprights 3. This lifting mechanism has a lifting seat 51, a force sensor 52, and an automatic self-aligning clamp 53 connected in series from top to bottom. The automatic self-aligning clamp 53 is used to clamp a socket 6 and ensure that the socket 6's insertion port is vertically downward. The force sensor 52 is electrically connected to the control system on the base. The control system is a common mechanical motion control system and outputs corresponding data to the production line.

[0025] In use, the socket 6 is fixed on the automatic self-aligning fixture 53 with the socket 6 facing vertically downwards; the plug 4 is fixed on the fixture 21 with the plug pins of the plug 4 protruding vertically upwards; the height of the end of the telescopic device 2 is adjusted so that the plug pins of the plug 4 are inserted into the socket 6, achieving pre-alignment. Then, the lifting seat 51 moves downwards, causing the socket 6 to be inserted into the plug pins of the plug 4 to a certain depth, and the force sensor 52 records the insertion force value and outputs it to the control system; and the lifting seat 51 moves upwards, causing the socket 6 to separate from the plug pins of the plug 4, and the force sensor 52 records the pull-out force value and outputs it to the control system; thus, the insertion force is tested.

[0026] Figure 1 , 2As shown in Figure 4, the automatic self-aligning clamp 53 of this embodiment can move slightly forward, backward, left, and right, and swing at small angles to achieve adaptive adjustment and ensure the insertion test. The fixture 21 is a clamp with a quick clamp, which facilitates the installation and removal of the plug 4. The end of the telescopic device 2 in this embodiment is provided with a U-shaped seat, and the fixture 21 includes two parts that can move closer and further apart. The two parts of the fixture 21 are respectively set on two opposite side walls of the U-shaped seat, which facilitates the insertion and clamping of the plug, and realizes quick clamping and disassembly. Furthermore, the telescopic device 2 is a manually adjustable telescopic column with two sections that are axially connected together and are tightened and loosened by a locking handle. The structure is simple and convenient for telescopic adjustment.

[0027] Figure 1 , 2 As shown in Figure 3, the lifting seat 51 in this embodiment is in the form of a horizontal plate. The lifting seat 51 is sleeved on the column 3 through a guide hole so that it can move up and down along the column 3. The lifting mechanism also has two lead screws 54 installed on the base 1 and erected from bottom to top. The two lead screws 54 are located between the two columns 3, and the two lead screws 54 are respectively distributed on both sides of the telescopic device 2 and parallel to the columns 3. The two lead screws 54 are connected to the threaded holes on the lifting seat 51, so that when the two lead screws 54 rotate synchronously, they drive the lifting seat 51 to move up and down. While the two lead screws 54 drive the lifting seat 51 to move up and down, they also cooperate with the two columns 3 to guide the lifting seat 51, so that the lifting seat 51 moves up and down smoothly and accurately. Furthermore, the upper ends of the two columns 3 are connected together by a crossbeam 7, and the upper ends of the two lead screws 54 are respectively assembled onto the crossbeam 7 via bearings. The crossbeam 7 increases the structural integrity of the upper ends of the two columns 3 and the two lead screws 54, ensuring the positional relationship between the two columns 3 and the two lead screws 54, and also improving the stability and accuracy of the up-and-down movement of the lifting seat 51.

[0028] The lower ends of the two lead screws 54 are respectively connected to a synchronous belt 55 via a synchronous pulley 541. The synchronous belt 55 is also connected to the output end of a motor 56, which is mounted on the base 1. The motor 56 outputs power, which, through the meshing transmission between the synchronous belt 55 and the synchronous pulley 541, enables the two lead screws 54 to rotate synchronously. Furthermore, through the forward and reverse output of the motor 56, the two lead screws 54 rotate synchronously in both directions. Utilizing a push-pull method with a threaded connection, the lifting seat 51 moves up and down.

[0029] In this embodiment, the base 1 is also equipped with corresponding start / stop buttons and a display screen, etc., for convenient operation and display.

[0030] This invention uses a lifting base to move the socket up and down, thereby enabling the socket's insertion point and the plug's pins to align and separate. It allows for precise control of the insertion and lifting speed and angle, avoiding the influence of human factors on the insertion and extraction force. A force sensor records the insertion and extraction force values ​​and outputs them to the control system, achieving experimental detection of the insertion force. Compared to existing technologies, this invention reduces test deviations caused by human error, improves the accuracy of insertion and extraction force testing, and allows for feedback of the test results to the production end, enabling dimensional control of the plug and socket, thus ensuring product quality. The fixture fixes the plug, and the automatic self-aligning clamp holds the socket, adaptable to testing plugs and sockets of different sizes, increasing its applicability and practicality.

[0031] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.

Claims

1. Plug-in force testing machine comprising a base (1) with a control system, characterized in that, The base (1) is further provided with an extender (2) protruding upward and capable of adjusting the height of the end, and two upright columns (3) arranged symmetrically on both sides of the extender (2) and on the base (1); The end of the extender (2) is provided with a jig (21) for fixing the plug (4) and making the plug-in leg of the plug (4) vertically upward; The two upright columns (3) are provided with a lifting mechanism having a lifting seat (51), a force sensor (52) and an automatic centering clamp (53) connected in series from top to bottom, the automatic centering clamp (53) is used for clamping the socket (6) and making the socket of the socket (6) vertically downward; The socket (6) is inserted into the plug-in leg of the plug (4) by moving the lifting seat (51) downward, the force sensor (52) records the plug-in force value and outputs it to the control system; And the socket (6) is separated from the plug-in leg of the plug (4) by moving the lifting seat (51) upward, the force sensor (52) records the pull-out force value and outputs it to the control system.

2. The plug-in force tester according to claim 1, wherein The lifting seat (51) is sleeved on the upright column (3) through the guide hole, and the lifting mechanism further has two lead screws (54) installed on the base (1) and arranged from bottom to top, the two lead screws (54) are located between the two upright columns (3), and the two lead screws (54) are distributed on both sides of the extender (2) and parallel to the upright columns (3); the two lead screws (54) are connected with the preset threaded holes on the lifting seat (51), so that the two lead screws (54) drive the lifting seat (51) to move up and down when they rotate synchronously.

3. The plug-in force test machine according to claim 1 or 2, characterized in that The extender (2) is a manually adjustable telescopic column.

4. The plug insertion / extraction force testing machine according to claim 1, characterized by The jig (21) is a clamping seat with a quick clamp.

5. The plug insertion / extraction force testing machine according to claim 2, characterized by The lower ends of the two lead screws (54) are connected with a synchronous belt (55) through a synchronous wheel (541), the synchronous belt (55) is further connected with the output end of a motor (56), and the motor (56) is installed on the base (1).

6. The plug insertion / extraction force testing machine according to claim 2, characterized by The upper ends of the two upright columns (3) are connected together through a cross beam (7), and the upper ends of the two lead screws (54) are assembled to the cross beam (7) through bearings, respectively.

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