A micro miniature plug-in connector continuous testing device and method

Abstract

The application discloses a kind of micro plug-in connector continuous testing device and method, belong to micro plug-in connector test field, main operating panel sets plug-in speed, jog, continuous movement, start and stop etc. Operation, ensure that moving parts are controllable;Motor drives fixed unit on guiding unit to carry out linear reciprocating motion through transmission unit, counting unit records the number of plug-in on both sides, fixed unit ensures the axial coaxiality of plug-in connector, simultaneously using slide rail and guide rod assembly as axial guide, its coaxiality can reach φ0.5, the application realizes adjustable plug-in speed, the number of plug-in is recorded using counting unit, power-off memory type photoelectric counter, ensure the accuracy of continuous counting, so as to provide sustainable, continuous plug-in connector experimental analysis.

Description

Technical Field

[0001] This invention belongs to the field of micro-miniature plug-in testing, specifically relating to a micro-miniature plug-in continuous testing device and method. Background Technology

[0002] As electronic equipment in aerospace systems continues to evolve towards lighter weight and miniaturization, connectors are also developing towards modularity, miniaturization, and high integration. The use of miniature sockets and pins in ultra-miniature connectors is becoming increasingly widespread. To clearly assess insertion loss, it is necessary to test the lifespan of the transmitted signal's internal conduction, i.e., the number of uses or failures. Therefore, developing a small device capable of continuous mating tests and continuous counting is fundamental to ensuring reliable test data for connector miniaturization and micro-miniaturization. Currently, no device on the market can simultaneously perform all of these functions. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention aims to provide a micro-miniature plug-in continuous testing device and method to solve the problem that the prior art cannot realize continuous plug-in testing and continuous counting of ultra-miniature connectors.

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

[0005] This invention discloses a miniature continuous testing device for plug-in components, comprising: a base, a fixing unit, a guiding unit, a motor, a transmission unit, a counting unit, and a main operation panel; the counting units are disposed on both sides of the base, the motor is disposed in the middle of the base and connected to the transmission unit, the fixing unit is disposed in the middle of the base between the counting units and is connected to the transmission unit, the guiding unit is disposed on the base and adapted to the fixing unit, and the main operation panel is disposed on the counting unit and electrically connected to the motor.

[0006] The guide unit includes a slide rail and a guide rod assembly. The slide rail is mounted on the base and adapted to the fixed unit, and the guide rod assembly is mounted on the fixed unit.

[0007] Preferably, the fixing unit includes: a stationary three-jaw fixing block, a movable three-jaw fixing block, and several three-jaw miniature chucks; the stationary three-jaw fixing block is disposed on the base at the end of the slide rail, the movable three-jaw fixing block is disposed on the slide rail and connected to the transmission unit, a part of the guide rod assembly is fixed on the stationary three-jaw fixing block, and another part is fixed on the movable three-jaw fixing block; the several three-jaw miniature chucks are respectively fixed on the stationary three-jaw fixing block and the movable three-jaw fixing block.

[0008] Preferably, the guide rod assembly includes a guide rod and a guide cylinder. The guide rod is fixed on a movable three-jaw fixing block, and the guide cylinder is fixed on a stationary three-jaw fixing block. The guide rod and the guide cylinder are compatible with each other.

[0009] Preferably, the static three-jaw fixing block is fixed to the base by bolts, and the base has several threaded through holes.

[0010] Preferably, the counting unit includes a counter device and a photoelectric sensor; the counter device is disposed on one side of the base, the photoelectric sensor is disposed on the other side of the base facing the guide unit, the counter device and the photoelectric sensor are electrically connected, and the main operation panel is disposed on the counter device.

[0011] Preferably, the transmission unit includes an eccentric wheel and a linear connecting rod. The eccentric wheel is connected to the motor, and one end of the linear connecting rod is connected to the eccentric wheel, while the other end is connected to the fixed unit.

[0012] This invention also discloses a method for continuous testing of miniature plug-ins, comprising:

[0013] The test piece is mounted onto the fixed unit;

[0014] Adjust the interlocking depth of the test piece;

[0015] When the counting unit is reset to zero, the motor drives the test piece on the fixed unit to move along the guide rod assembly on the slide rail of the guide unit through the transmission unit.

[0016] The test piece begins to move to perform the interlocking experiment. The counting unit counts the number of interlocking operations. When the number of interlocking operations reaches the experimental limit, the motor stops rotating.

[0017] Preferably, the transmission unit includes an eccentric wheel and a linear connecting rod. The eccentric wheel is connected to a motor, and one end of the linear connecting rod is connected to the eccentric wheel and the other end is connected to a fixed unit. When adjusting the mating depth of the test piece, the eccentric wheel is rotated to observe the actual mating depth, thereby adjusting the test piece installed on the fixed unit.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention discloses a miniature continuous testing device for plug-in components. The main operation panel is equipped with functions such as plug-in speed, jogging, continuous motion, start, and stop to ensure controllability of moving parts. The motor drives the fixed unit to perform linear reciprocating motion on the guide unit through the transmission unit. The counting unit records the number of plug-in connections on both sides. The fixed unit ensures the axial coaxiality of the plug-in components. At the same time, a slide rail and guide rod assembly is used as axial guidance, and its coaxiality can reach φ0.5. The plug-in speed of this invention is adjustable, and the number of plug-in connections is recorded by the counting unit. A power-off memory type photoelectric counter ensures the accuracy of continuous counting, so as to provide sustainable and continuous experimental analysis of plug-in components.

[0020] Furthermore, a three-jaw miniature chuck is used to achieve clamping tests on conductors with shaft diameters ranging from 0.5mm to 3.2mm. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] The components are: 1-Main operation panel; 2-Counter device; 3-Three-jaw miniature chuck; 4-Static three-jaw fixing block; 5-Moving three-jaw fixing block; 6-Photoelectric sensor; 7-Motor; 8-Eccentric wheel; 9-Linear connecting rod; 10-Slide rail; 11-Guide rod assembly. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings:

[0026] See Figure 1 This invention discloses a miniature continuous testing device for plug-in components, comprising: a base, a fixing unit, a guiding unit, a motor 7, a transmission unit, a counting unit, and a main operation panel 1; the counting units are disposed on both sides of the base, the motor 7 is disposed in the middle of the base and connected to the transmission unit, the fixing unit is disposed in the middle of the base between the counting units and is connected to the transmission unit, the guiding unit is disposed on the base and adapted to the fixing unit, and the main operation panel 1 is disposed on the counting unit and electrically connected to the motor 7;

[0027] The guiding unit includes a slide rail 10 and a guide rod assembly 11; the fixing unit includes a stationary three-jaw fixing block 4, a movable three-jaw fixing block 5, and several three-jaw miniature clamps 3; the counting unit includes a counter device 2 and a photoelectric sensor 6; the transmission unit includes an eccentric wheel 8 and a linear connecting rod 9; the counter device 2 is an electronic device, and its specific working principle is to receive an input voltage and complete one count. This input voltage comes from the photoelectric sensor (it outputs a voltage when an object blocks its path).

[0028] The slide rail 10 is mounted on the base and adapted to the fixing unit. The guide rod in the guide rod assembly 11 is fixed on the moving three-jaw fixing block 5, and the guide cylinder is fixed on the stationary three-jaw fixing block 4. The guide rod and the guide cylinder are adapted to each other. The stationary three-jaw fixing block 4 is mounted on the base at the end of the slide rail 10. The moving three-jaw fixing block 5 is mounted on the slide rail 10 and connected to the linear connecting rod 9. Several three-jaw miniature chucks 3 are respectively fixed on the stationary three-jaw fixing block 4 and the moving three-jaw fixing block 5. The counter device 2 is mounted on one side of the base, and the photoelectric sensor 6 is mounted on the other side of the base facing the guide unit. The main operation panel 1 is mounted on the counter device 2. The eccentric wheel 8 is connected to the motor 7. One end of the linear connecting rod 9 is connected to the eccentric wheel 8, and the other end is connected to the moving three-jaw fixing block 5.

[0029] The main control panel 1 allows users to set operations such as insertion speed, jogging, continuous motion, start and stop, ensuring that the moving parts are controllable.

[0030] Counter device 2 adopts a power-off memory type photoelectric counter, which can realize counting when power is off. This can prevent the influence of external factors on the test data, ensure the accuracy of the plug-in test data, and provide sustainable and continuous experimental analysis of the plug-in.

[0031] The three-jaw miniature chuck 3 is easy to install and has high precision. It can achieve radial clamping of the plug-in and ensure its axial coaxiality.

[0032] The static three-jaw fixing block 4 is fixed with an M4 thread and has three adjustable strokes to ensure that it can adapt to the test stroke of the plug-in and the vertical movement distance during the separation process.

[0033] The movable three-jaw chuck fixing block 5 is installed on the slide rail fixing block and connected to the slide rail fixing block to realize the axial movement of the movable three-jaw chuck.

[0034] The photoelectric sensor 6 has a detection range of 0-30CM and can count the movement during the plug-in testing process to ensure continuous counting function.

[0035] Motor 7 is a YF-20 motor, which is a 24V DC stepper motor controlled by a driver board, with a motor torque of 0.7Nm.

[0036] Working principle:

[0037] Motor 7 rotates, driving eccentric wheel 8 to rotate. Eccentric wheel 8 drives moving three-jaw chuck block 5 to reciprocate linearly on slide rail 10 via linear connecting rod 9. Stationary three-jaw chuck block 4 remains stationary. The three-jaw miniature chucks 3 on moving three-jaw chuck block 5 and stationary three-jaw chuck block 4 radially clamp the insert. At the same time, the guide rod in guide rod assembly 11 reciprocates linearly in guide cylinder, thus ensuring coaxiality. Counter device 2 and photoelectric sensor 6 are electrically connected. The hardware required for the counting function includes photoelectric sensor 6 and counter device 2, which enables photoelectric sensor 6 to sense input ( The specific implementation process is as follows: 1. The photoelectric sensor 6 is in the on state. When an object enters the light emission area of ​​the photoelectric sensor 6, the light is reflected due to the object's obstruction. The photoelectric sensor 6 will process this light reflection signal (the working principle of the photoelectric sensor 6) and output a voltage. The photoelectric sensor 6 is connected to the counting input signal of the counter device 2. This output voltage is converted into a digital value by the internal converter of the counter device 2 and displayed on the counter's display screen, thereby realizing the counting function.

[0038] This invention also discloses a continuous interpolation test method, comprising:

[0039] The test piece is mounted onto the fixed unit;

[0040] Adjust the interlocking depth of the test piece;

[0041] When the counting unit is reset to zero, the motor drives the test piece on the fixed unit to move along the guide rod assembly 11 on the slide rail 10 of the guide unit through the transmission unit.

[0042] The test piece begins to move to perform the interlocking experiment. The counting unit counts the number of interlocking operations. When the number of interlocking operations reaches the experimental limit, the motor stops rotating.

[0043] As a preferred option, a sequential interpolation test method comprises the following steps:

[0044] The test piece is mounted onto the three-jaw miniature chuck 3 of the moving three-jaw fixing block 5 and the stationary three-jaw fixing block 4 respectively;

[0045] According to the required insertion depth, manually rotate the eccentric wheel 8 to observe the actual insertion depth, and adjust the three-jaw micro chuck 3 and clamping depth of the stationary three-jaw fixing block 4 to adjust the insertion stroke as required.

[0046] After adjusting the stroke, the counter device 2 is reset to zero, and the continuous button on the main operation panel 1 is activated for testing;

[0047] When the number of experiments is reached, press the stop button on the main control panel 1 to complete the experiment.

[0048] This device is used to simulate the insertion and insertion test of new structures or materials. The new structure or material has a predetermined number of uses in the initial design stage. This device is used to verify whether the new structure or material meets the design or usage requirements after continuous use (the separation force and insertion force measured by a fully automatic insertion and extraction force testing machine).

[0049]

Example 1

[0050] Experimental analysis was conducted on the number of insertions of miniature internal conductor contacts.

[0051] The miniature internal conductor contact is installed onto the three-jaw miniature chuck 3 of the moving three-jaw fixing block 5 and the stationary three-jaw fixing block 4 respectively;

[0052] According to the required insertion depth, manually rotate the eccentric wheel 8 to observe the actual insertion depth, and adjust the three-jaw micro chuck 3 and clamping depth of the stationary three-jaw fixing block 4 to adjust the insertion stroke as required.

[0053] After adjusting the stroke, the counter device 2 is reset to zero, and the continuous button on the main operation panel 1 is activated for testing;

[0054] When the number of experiments is reached, press the stop button on the main control panel 1 to complete the experiment.

[0055] The experiment analyzes and verifies the trend of the effective number of times the number of matings (such as the number of matings, the contact mating separation force, etc.) affects the connector mating and unmating process. The experimental and theoretical calculation data are recorded, and the quantitative values ​​of the factors affecting the change are summarized.

[0056]

Example 2

[0057] Experimental analysis was conducted on the number of times brush-shaped contact components could be inserted.

[0058] The brush-shaped contact element is installed onto the three-jaw miniature chuck 3 of the moving three-jaw fixing block 5 and the stationary three-jaw fixing block 4 respectively;

[0059] According to the required insertion depth, manually rotate the eccentric wheel 8 to observe the actual insertion depth, and adjust the three-jaw micro chuck 3 and clamping depth of the stationary three-jaw fixing block 4 to adjust the insertion stroke as required.

[0060] After adjusting the stroke, the counter device 2 is reset to zero, and the continuous button on the main operation panel 1 is activated for testing;

[0061] When the number of experiments is reached, press the stop button on the main control panel 1 to complete the experiment.

[0062] The experiment analyzes and verifies the trend of the effective number of times the number of matings (such as the number of matings, the contact mating separation force, etc.) affects the connector mating and unmating process. The experimental and theoretical calculation data are recorded, and the quantitative values ​​of the factors affecting the change are summarized.

[0063] Analysis of the impact of the number of insertions on product failure

[0064] The relationship between the number of mating cycles and the separation force of a single contact is investigated. This involves observing the change in the separation force of the contact after a certain number of simulated mating cycles compared to its initial state, or the change in separation force with increasing cycles, and the failure limit. Continuous mating tests and measurements of the separation force (obtained using a fully automated mating and extraction force testing machine) are necessary to provide experimental data support for contact selection in the design of miniature connectors.

[0065] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A miniature continuous testing device for plug-in components, characterized in that, include: The base, fixed unit, guide unit, motor (7), transmission unit, counting unit and main operation panel (1); the counting unit is set on both sides of the base, the motor (7) is set in the middle of the base and connected to the transmission unit, the fixed unit is set in the middle of the base between the counting units and is connected to the transmission unit, the guide unit is set on the base and is adapted to the fixed unit, and the main operation panel (1) is set on the counting unit and electrically connected to the motor (7). The guide unit includes: a slide rail (10) and a guide rod assembly (11). The slide rail (10) is mounted on the base and adapted to the fixed unit, and the guide rod assembly (11) is mounted on the fixed unit. The fixing unit includes a stationary three-jaw fixing block (4) and a movable three-jaw fixing block (5); the stationary three-jaw fixing block (4) is set on the base at the end of the slide rail (10), and the movable three-jaw fixing block (5) is set on the slide rail (10) and connected to the transmission unit. The guide rod assembly (11) includes a guide rod and a guide cylinder. The guide rod is fixed on the movable three-jaw fixing block (5), and the guide cylinder is fixed on the stationary three-jaw fixing block (4). The guide rod and the guide cylinder are compatible. The counting unit includes: a counter device (2) and a photoelectric sensor (6); the counter device (2) is located on one side of the base, and the photoelectric sensor (6) is located on the other side of the base opposite the guide unit. The counter device (2) and the photoelectric sensor (6) are electrically connected, and the main operation panel (1) is located on the counter device (2). The transmission unit includes an eccentric wheel (8) and a linear connecting rod (9). The eccentric wheel (8) is connected to the motor (7), and one end of the linear connecting rod (9) is connected to the eccentric wheel (8), while the other end is connected to the fixed unit.

2. The miniature continuous testing device for plug-in components according to claim 1, characterized in that, The fixing unit also includes several three-jaw miniature chucks (3); part of the guide rod assembly (11) is fixed on the stationary three-jaw fixing block (4), and the other part is fixed on the movable three-jaw fixing block (5); several three-jaw miniature chucks (3) are respectively fixed on the stationary three-jaw fixing block (4) and the movable three-jaw fixing block (5).

3. The miniature continuous testing device for plug-in components according to claim 2, characterized in that, The static three-jaw fixing block (4) is fixed to the base by bolts, and the base has several threaded through holes.

4. A method for continuous testing of miniature plug-in components using the miniature plug-in continuous testing device according to any one of claims 1 to 3, characterized in that, include: The test piece is mounted onto the fixed unit; Adjust the interlocking depth of the test piece; When the counting unit is reset to zero, the motor drives the test piece on the fixed unit to move along the guide rod assembly (11) on the slide rail (10) of the guide unit through the transmission unit; The test piece begins to move to perform the interlocking experiment. The counting unit counts the number of interlocking operations. When the number of interlocking operations reaches the experimental limit, the motor stops rotating.

5. The method for continuous testing of miniature plug-in components according to claim 4, characterized in that, The transmission unit includes an eccentric wheel (8) and a linear connecting rod (9). The eccentric wheel (8) is connected to the motor (7). One end of the linear connecting rod (9) is connected to the eccentric wheel (8), and the other end is connected to the fixed unit. When adjusting the insertion depth of the test piece, the eccentric wheel (8) is rotated to observe the actual insertion depth, and then the test piece installed on the fixed unit is adjusted.

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