A compression deformation testing device for a pin header connector

Abstract

The application discloses a kind of pressure deformation test devices of wool button connector, it is related to wool button test technical field, including the lower positioning rod of being movably inserted above rotary disc;First active liquid storage rod is fixed in the bottom end of lower positioning rod;Liquid receiving liquid storage column is movably sleeved below rotary disc;Fixedly installed in mobile assembly bottom and disc;Upper positioning rod is fixed in the side of third liquid storage rod;Mobile plate is elastically arranged in pressing plate.The lower positioning rod and the upper positioning rod in the application are communicated by third liquid storage rod to realize initial synchronous clamping, so that lateral restraint force and radial deformation are real-time self-adapting matching, the middle part of workpiece is inhibited "S" shape bending, the original service life of workpiece is maintained, so that test data truly reflects actual use state;The application ingeniously utilizes the characteristics of hydraulic stroke amplification and multidirectional radial force comparison, the stroke is amplified and transmitted to sensor, and the sensor can capture the anomaly, to ensure that the measurement result of radial expansion force is real and reliable.

Description

Technical Field

[0001] This invention relates to the field of button testing technology, specifically to a pressure deformation testing device for button connectors. Background Technology

[0002] The pressure deformation testing device for button connectors is a specialized mechanical testing device used to simulate the actual assembly and compression conditions of buttons. Its core function is to measure the radial expansion force of the button during compression. By obtaining reliable radial force data, the contact stability and springback characteristics of the button can be evaluated, thus providing a basis for connector design and selection.

[0003] In the process of pressure deformation detection, the sensor is the core component of the device. When the button is subjected to vertical pressure, it will expand in the radial direction and exert a force on the surrounding area. The sensor is mainly used to measure the axial pressure or the resulting radial expansion force on the button.

[0004] Currently, most testing equipment uses a vertical pressing structure. However, when the workpiece is relatively slender and there is a slight deviation in its initial placement, the pressure can easily convert the axial force into a lateral force during downward transmission, causing the middle of the workpiece to arch and exhibit an "S"-shaped bend. This phenomenon can lead to the following two problems:

[0005] 1. Uneven radial expansion, accompanied by stress concentration caused by bending, accelerates material fatigue, causing test data to deviate significantly from actual usage conditions. Bending deformation occurs on one side of the workpiece, and the protruding side is prone to plastic deformation or coating damage during repeated compression. This not only reduces the service life of the workpiece but also easily misleads designers' judgment of product performance, thereby affecting the reliability of the entire electronic interconnection system.

[0006] 2. It is difficult to effectively detect cases where a certain side of the workpiece protrudes significantly, affecting the accuracy and reliability of the test results. As a result, the measured value of radial expansion force cannot truly reflect the actual pressure-bearing deformation characteristics of the button. When the side protrusion is not effectively constrained, the sensor may only collect the radial force in a local area, while missing the expansion force in other directions, further weakening the accuracy of the test results.

[0007] To address the aforementioned issues, there is an urgent need for innovative design based on the existing pressure deformation testing device for the raw button connection. Summary of the Invention

[0008] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. Specifically, the present invention aims to provide a pressure deformation testing device for a button connector to solve the problems mentioned in the background art, such as uneven radial expansion force easily causing lateral bending deformation that affects the life of the workpiece and the judgment of product performance, as well as the difficulty of sensors in detecting the accuracy of local lateral bending.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a pressure deformation testing device for a button connector, comprising a device body, a movable component mounted on the device body, and a workpiece placed on the device body, and further comprising:

[0010] A rotating disk is mounted on the main body of the device to hold the annular column;

[0011] A movable lower positioning rod is inserted above the rotating disk and clamps the workpiece by being driven by the rotation of the rotating disk;

[0012] The first live liquid storage rod is fixed at the bottom of the lower positioning rod and retracts synchronously with its displacement;

[0013] A liquid storage column is installed below the rotating disk to receive liquid.

[0014] A pressure plate and a disc fixedly installed at the bottom of the moving assembly for workpiece compression testing;

[0015] A third liquid storage rod is connected above the liquid storage column and extends synchronously with the change in liquid volume;

[0016] An upper positioning rod fixed to one side of the third liquid storage rod, which moves synchronously with the third liquid storage rod to limit the side of the workpiece;

[0017] A movable plate that is elastically set in the pressure plate and moves with the extrusion pressure to provide space for the third liquid storage rod;

[0018] A second reservoir rod is connected to one side of the third reservoir rod to sense the radial expansion force of the workpiece.

[0019] Preferably, a sensor is installed on one side of the main body of the device, and the sensor is located close to the second liquid storage rod;

[0020] The moving component includes a lifting plate, a lead screw, and limiting posts. The lead screw is rotatably inserted into the main body of the device, and the lifting plate is movably sleeved on the surface of the lead screw. Limiting posts are movably inserted on both sides of the lifting plate.

[0021] Preferably, the top of the rotating disk is provided with a placement groove, and a rubber pad is fixedly laid in the placement groove;

[0022] The surface of the rotating disk is provided with an arc-shaped groove, and a lower positioning rod is movably inserted into the first live liquid storage rod;

[0023] The lower positioning rods are evenly distributed above the rotating disk, and the bottom ends of the multiple sets of lower positioning rods are all fixed with a first live liquid storage rod.

[0024] A motor is installed at the lower end of the rotating disk in the main body of the device.

[0025] Preferably, a limiting ring is provided above the rotating disk, the limiting ring and the liquid storage column are respectively fixed on the main body of the device, and a lower positioning rod is movably inserted into the bottom end of the limiting ring;

[0026] The surface of the liquid storage column is fixed with a first movable liquid storage rod at equal angles, and the liquid storage column and the first movable liquid storage rod are connected.

[0027] The first movable reservoir rod consists of two parts: a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the first movable reservoir rod, and one end of the piston rod is fixed to the bottom end of the lower positioning rod.

[0028] Preferably, the top of the fixed plate is provided with second liquid storage rods at equal intervals, and the second liquid storage rod is composed of two parts: a piston rod and a cylinder. The piston rod is movably inserted into the cylinder, and the surface of the piston rod is marked with a range.

[0029] The diameter of the second reservoir rod is smaller than the diameter of the third reservoir rod;

[0030] The second liquid storage rod, the annular column, the third liquid storage rod, the liquid storage column, and the first live liquid storage rod each store liquid.

[0031] Preferably, an annular column is fixedly sleeved on the surface of the disc, and a third liquid storage rod is fixed above the disc and the annular column.

[0032] The third liquid storage rod consists of two parts: a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the third liquid storage rod, and one side of the piston rod is fixed to the upper positioning rod.

[0033] Preferably, an upper positioning rod is movably inserted through the surface of the disk, and multiple sets of upper positioning rods are distributed at equal angles;

[0034] The upper and lower positioning rods are respectively provided with triangular grooves on their inner sides. The upper and lower positioning rods are staggered at equal angles to each other, and both the upper and lower positioning rods are in contact with the surface of the workpiece.

[0035] The upper positioning rod is movably inserted into the rotating disk, and a matching groove is provided through the surface of the rotating disk.

[0036] Preferably, a movable plate is movably inserted into the bottom end of the pressure plate, and the movable plate is composed of two parts: a circular plate and a cylinder.

[0037] The bottom end of the circular plate has cylinders distributed at equal angles. The circular plate is movably inserted into the bottom end of the pressure plate. The bottom ends of both the cylinders and the circular plate are in contact with the top end of the workpiece.

[0038] Preferably, there are multiple sets of the third liquid storage rods distributed at equal angles, and the bottom ends of the multiple sets of the third liquid storage rods are all connected to the liquid storage column;

[0039] The top two sides of the third liquid storage rod are respectively connected to the pressure plate and the second liquid storage rod.

[0040] Preferably, a return spring is fixed to the top of the movable plate, and a movable plate is fixed to the top of the return spring. A return spring is also fixed between the top of the movable plate and the middle of the pressure plate.

[0041] The movable plate is movably inserted into the pressure plate, and the surface of the pressure plate is provided with reserved holes at equal angles. The pressure plate is connected to the third liquid storage rod through the reserved holes.

[0042] The movable plate is designed in the shape of an I-beam, and a rubber layer is fixed on the surface of the movable plate. The position of the movable plate is adapted to the reserved hole.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] 1. In this invention, the lower positioning rod and the upper positioning rod are connected through the third liquid storage rod to achieve initial synchronous clamping. The pre-reserved hole 9 of the moving plate opens after being pressed down to provide space for the liquid in the third liquid storage rod. The radial expansion force of the workpiece pushes the upper positioning rod to undergo hydraulic connection displacement. Through the radial force self-adaptation and hydraulic connection displacement mechanism, sufficient lateral support is provided to the workpiece. Thus, the upper positioning rod can automatically adjust its position according to the radial deformation of the workpiece, so that the lateral constraint force and the radial deformation amount are adaptively matched in real time. This effectively avoids the axial force from being converted into lateral force, suppresses the "S"-shaped bending in the middle of the workpiece, maintains the original service life of the workpiece, and also ensures the stability of the compression process, so that the test data truly reflects the actual use state.

[0045] 2. This invention cleverly utilizes the characteristics of hydraulic stroke amplification and multi-directional radial force comparison. The upper positioning rods in each direction are pushed by radial extrusion force to drive the liquid in the third reservoir rod. The liquid flows to the smaller-diameter second reservoir rod, and the stroke is amplified and transmitted to the sensor, realizing the amplification and detection of displacement signals. The sensor can detect whether the radial movement range of the positioning rod in each direction is normal and compare whether the radial forces in different directions are consistent. When a certain side protrudes severely, the corresponding second reservoir rod will be significantly lower than others. The sensor can capture this anomaly, thereby solving the problem that traditional equipment is difficult to detect local side protrusions, ensuring that the measurement results of radial expansion force are true and reliable, and avoiding low measurement values ​​or misleading design judgments due to local protrusions. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0047] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0048] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention.

[0049] Figure 4 This is a three-dimensional structural diagram of the rotating disk and liquid storage column of the present invention.

[0050] Figure 5 This is a three-dimensional structural diagram of the rotating disk and lower positioning rod of the present invention.

[0051] Figure 6 This is a three-dimensional structural diagram of the liquid storage column and the first liquid storage rod of the present invention.

[0052] Figure 7 This is a three-dimensional cross-sectional structural diagram of the liquid storage column and the first liquid storage rod of the present invention.

[0053] Figure 8 This is a three-dimensional structural diagram of the disk and the second liquid storage rod of the present invention.

[0054] Figure 9 This is a three-dimensional cross-sectional structural diagram of the annular column of the present invention.

[0055] Figure 10 This is a three-dimensional cross-sectional structural diagram of the third liquid storage rod of the present invention.

[0056] Figure 11 This is a three-dimensional cross-sectional structural diagram of the pressure plate of the present invention.

[0057] Figure 12 This is a three-dimensional structural diagram of the second liquid storage rod of the present invention.

[0058] Figure 13This is a schematic diagram showing the usage state of the rotating disk and the lower positioning rod of the present invention.

[0059] Figure 14 This is a schematic diagram showing the usage state of the movable plate and the reset spring of the present invention.

[0060] Figure 15 This is a schematic diagram showing the usage state of the second and third liquid storage rods of the present invention.

[0061] In the diagram: 1. Main body of the device; 2. Sensor; 3. Moving component; 4. Workpiece; 5. Annular column; 6. Rotating disk; 7. Fixed plate; 8. Limiting ring; 9. Reserved hole; 10. Liquid storage column; 11. Lower positioning rod; 12. First live liquid storage rod; 13. Disc; 14. Pressure plate; 15. Upper positioning rod; 16. Second liquid storage rod; 17. Third liquid storage rod; 18. Moving plate; 19. Return spring; 20. Movable plate; 21. Arc groove. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0063] Please see Figures 1 to 15 The present invention provides a technical solution: a pressure deformation testing device for a bobbin thread connector, comprising a device body 1, a movable component 3 mounted on the device body 1, and a workpiece 4 placed on the device body 1, and further comprising:

[0064] A rotating disk 6 is mounted on the main body 1 of the device to hold the annular column 5;

[0065] The lower positioning rod 11 is movably inserted above the rotating disk 6 and is driven by the rotation of the rotating disk 6 to clamp the workpiece 4;

[0066] The first live liquid storage rod 12, which is fixed at the bottom of the lower positioning rod 11, retracts synchronously with its displacement;

[0067] A liquid storage column 10 is installed below the rotating disk 6 to receive liquid.

[0068] A pressure plate 14 and a disc 13 are fixedly installed at the bottom of the movable component 3 for pressing the workpiece 4 for extrusion testing.

[0069] The third liquid storage rod 17, which is installed above the liquid storage column 10 and extends synchronously with the change of its liquid volume, is connected to it.

[0070] An upper positioning rod 15, fixed to one side of the third liquid storage rod 17, limits the side of the workpiece 4 as it moves synchronously with the third liquid storage rod 17.

[0071] A movable plate 18, which is elastically set in the pressure plate 14 and moves with the pressure of the pressure plate to provide space for the third liquid storage rod 17;

[0072] A second reservoir 16, which is connected to one side of the third reservoir 17, is used to sense the radial expansion force of the workpiece 4.

[0073] In specific implementation, a sensor 2 is installed on one side of the main body 1 of the device, and the sensor 2 is located close to the second liquid storage rod 16;

[0074] Additionally, it should be noted that if the radial expansion lengths of different sides of workpiece 4 are the same, multiple sets of upper positioning rods 15 are equidistantly spread, and multiple sets of second liquid storage rods 16 extend to the same length. Sensor 2 detects whether the extension length of the second liquid storage rods 16 is within the marked range. If the radial expansion lengths of different sides of workpiece 4 are inconsistent, some of the multiple sets of second liquid storage rods 16 are high or low, and the multiple sets of second liquid storage rods 16 are not on the same horizontal plane. The workpiece 4 is checked for compliance with the standard based on the length of the second liquid storage rods 16.

[0075] The movable component 3 includes a lifting plate, a lead screw, and limiting posts. The lead screw is rotatably inserted into the main body 1 of the device, and the lifting plate is movably sleeved on the surface of the lead screw. Limiting posts are movably inserted on both sides of the lifting plate.

[0076] Additionally, it should be noted that after the moving component 3 is driven, the lead screw rotates and drives the circular plate to move up and down. The circular plate is limited in its direction of movement by the limiting post. The moving component 3 compresses the workpiece 4 at a stable rate. As the moving component 3 moves down, it drives the upper positioning rod 15, the pressure plate 14 and the disc 13 to move down synchronously. Multiple sets of upper positioning rods 15 move down into the groove of the rotating disc 6, and then slide in the groove according to the radial thrust of the workpiece 4.

[0077] In specific implementation, a placement groove is provided at the top of the rotating disk 6, and a rubber pad is fixedly laid in the placement groove; an arc-shaped groove 21 is provided through the surface of the rotating disk 6, and a lower positioning rod 11 is movably inserted in the first live liquid storage rod 12; the lower positioning rods 11 are evenly distributed above the rotating disk 6, and the bottom ends of multiple sets of lower positioning rods 11 are all fixed with the first live liquid storage rod 12; a motor is installed in the main body 1 at the lower end of the rotating disk 6.

[0078] Additionally, it should be noted that the motor drives the rotating disk 6 to rotate, and the lower positioning rod 11 is pushed and displaced along the rotational force of the arc groove 21. Multiple sets of lower positioning rods 11 slide simultaneously in the arc groove 21 and change from a spreading posture to a contracting posture to clamp and fix the bottom end of the workpiece 4. As the lower positioning rod 11 is displaced, it drives the first live liquid storage rod 12 to contract synchronously. The adaptive lateral constraint makes the workpiece pressure process more stable, reduces data fluctuations, and improves test repeatability and reliability.

[0079] In specific implementation, a limiting ring 8 is set above the rotating disk 6. The limiting ring 8 and the liquid storage column 10 are respectively fixed on the main body 1 of the device. A lower positioning rod 11 is movably inserted into the bottom end of the limiting ring 8.

[0080] Additionally, it should be noted that when the lower positioning rod 11 expands and contracts synchronously, it slides synchronously at the bottom end of the limiting ring 8. The limiting ring 8 restricts the direction of movement of the lower positioning rod 11, so that multiple sets of lower positioning rods 11 can only move back and forth and slide in the arc groove 21, and will not rotate synchronously with the rotating disk 6.

[0081] The surface of the liquid storage column 10 is fixed with a first movable liquid storage rod 12 at equal angles, and the liquid storage column 10 and the first movable liquid storage rod 12 are connected. The first movable liquid storage rod 12 is composed of a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the first movable liquid storage rod 12, and one end of the piston rod is fixed to the bottom end of the lower positioning rod 11.

[0082] Additionally, it should be noted that as the lower positioning rod 11 moves, it drives the piston rod of the first live liquid reservoir 12 at the bottom to move synchronously. The piston rod pushes the liquid in the first live liquid reservoir 12 to the liquid reservoir 10. The liquid in the liquid reservoir 10 then flows through the annular column 5 to the third liquid reservoir 17, pushing the synchronous displacement of multiple sets of upper positioning rods 15. Multiple sets of lower positioning rods 11 and upper positioning rods 15 achieve initial synchronous clamping of the workpiece 4. Synchronous clamping and limiting can be achieved without additional sensors and drive components. At the same time, through the radial force adaptive and hydraulically connected displacement mechanism, the lateral support force is adjusted in real time with the radial deformation of the workpiece, effectively avoiding the conversion of axial pressure into lateral force, thereby suppressing the "S"-shaped bending in the middle of the workpiece 4. This maintains the normal compression posture of the workpiece during the test, and the measured radial expansion force is highly consistent with the actual assembly conditions.

[0083] In specific implementation, the top of the fixed plate 7 is provided with second liquid storage rods 16 at equal intervals, and the second liquid storage rods 16 are composed of two parts: a piston rod and a cylinder. The piston rod is movably inserted in the cylinder, and the surface of the piston rod is marked with a range. The diameter of the second liquid storage rods 16 is smaller than the diameter of the third liquid storage rods 17. Liquid is stored in the second liquid storage rods 16, the annular column 5, the third liquid storage rods 17, the liquid storage column 10, and the first live liquid storage rod 12.

[0084] In addition, it should be noted that the sensor can more easily and accurately determine the quality of workpiece 4 through the range marking. The third liquid reservoir 17 is connected to the second liquid reservoir 16. When the liquid in the third liquid reservoir 17 flows into the second liquid reservoir 16, the stroke of the second liquid reservoir 16 can be amplified. By using the hydraulic stroke amplification and multi-directional force comparison mechanism, the radial displacement in each direction can be monitored separately, and the radial force in each direction can be compared with that of the sensor 2. This solves the problem that traditional equipment can only collect force values ​​in local areas and miss the protruding side.

[0085] In specific implementation, an annular column 5 is fixedly sleeved on the surface of the disc 13, and a third liquid storage rod 17 is fixed above the disc 13 and the annular column 5. The third liquid storage rod 17 consists of a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the third liquid storage rod 17, and one side of the piston rod is fixed to the upper positioning rod 15.

[0086] Additionally, it should be noted that when the upper positioning rod 15 is subjected to radial thrust, the displacement of the upper positioning rod 15 causes the third liquid reservoir 17 to retract, and the liquid in the third liquid reservoir 17 flows into the pressure plate 14, which can help suppress the deformation of the workpiece 4, ensure the authenticity of the test state, avoid stress concentration and local plastic deformation caused by bending, reduce the risk of coating damage, and ensure that the workpiece 4 can still maintain its original life characteristics after the test, without introducing additional damage due to the test itself.

[0087] In specific implementation, an upper positioning rod 15 is movably inserted through the surface of the disc 13, and multiple sets of upper positioning rods 15 are distributed at equal angles; triangular grooves are respectively opened on the inner side of the upper positioning rod 15 and the lower positioning rod 11, and the upper positioning rod 15 and the lower positioning rod 11 are staggered at equal angles to each other, and both the upper positioning rod 15 and the lower positioning rod 11 are in contact with the surface of the workpiece 4; the upper positioning rod 15 is movably inserted into the rotating disk 6, and a matching groove is opened through the surface of the rotating disk 6.

[0088] Additionally, it should be noted that the inner sides of the upper positioning rod 15 and the lower positioning rod 11 are provided with triangular grooves, which can clamp workpieces 4 of different diameters, making them more stable and reliable during the extrusion process and more versatile. The initial diameter of the multiple sets of upper positioning rods 15 is slightly larger than the diameter of the multiple sets of lower positioning rods 11. After the multiple sets of lower positioning rods 11 have clamped the workpiece 4 securely, the upper positioning rods 15 move down with the moving component 3 to reach the surface of the workpiece 4. The slightly larger diameter setting ensures that it does not contact the workpiece 4 during downward movement, but the distance between it and the surface of the workpiece 4 is very small, allowing for smooth movement without damaging the surface of the workpiece 4.

[0089] In specific implementation, a movable plate 20 is movably inserted into the bottom end of the pressure plate 14, and the movable plate 20 is composed of two parts: a circular plate and a cylinder. Cylinders are distributed at equal angles at the bottom end of the circular plate. The circular plate is movably inserted into the bottom end of the pressure plate 14, and the bottom ends of both the cylinder and the circular plate are in contact with the top end of the workpiece 4.

[0090] Additionally, it should be noted that after the moving component 3 moves the pressure plate 14 downward, the cylinder at the bottom of the movable plate 20 first contacts the top of the workpiece 4 and is pushed back into the pressure plate 14. Subsequently, the movable plate 18 is pushed upward, exposing the reserved holes 9 that are connected to the multiple sets of third liquid storage rods 17. At this time, the workpiece 4 continues to be squeezed downward, and the radial force of the workpiece 4 pushes the liquid in the third liquid storage rod 17 to flow into the movable plate 18 of the pressure plate 14.

[0091] In practice, multiple sets of third liquid storage rods 17 are distributed at equal angles, and the bottom ends of multiple sets of third liquid storage rods 17 are connected to the liquid storage column 10; the two sides of the top of the third liquid storage rods 17 are connected to the pressure plate 14 and the second liquid storage rod 16 respectively.

[0092] Additionally, it should be noted that... Figure 10 As shown, the third reservoir rod 17 is initially filled with liquid, and the front and rear ends of the piston rod in the third reservoir rod 17 are filled with liquid. The initial liquid flows to the second reservoir rod 16 as the piston rod extends. When one side protrudes severely, the displacement in the corresponding direction will be significantly lower than in other directions. The sensor can capture this difference in time, thereby determining whether the workpiece has non-uniform deformation or local defects.

[0093] In specific implementation, a return spring 19 is fixed to the top of the movable plate 20, and a movable plate 18 is fixed to the top of the return spring 19. The top of the movable plate 18 and the middle of the pressure plate 14 are both fixed with a return spring 19. The movable plate 18 is movably inserted into the pressure plate 14. A reserved hole 9 is opened through the surface of the pressure plate 14 at equal angles. The pressure plate 14 is connected to the third liquid storage rod 17 through the reserved hole 9. The movable plate 18 is set in an I-shape, and a rubber layer is fixed to the surface of the movable plate 18. The position of the movable plate 18 is adapted to the reserved hole 9.

[0094] Additionally, it should be noted that after the compression deformation test, the two sets of reset springs 19 push the moving plate 18 downward to reset, the reserved hole 9 at the liquid upper position in the moving plate 18 opens, and the reserved hole below opens at the same time, the liquid flows back to reset into the third liquid storage rod 17. After the test is completed, the rotating disk 6 drives the multiple sets of lower positioning rods 11 to reset and diffuse in the opposite direction, driving the upper positioning rod 15 to reset and diffuse, so that the third liquid storage rod 17 resets to form a negative pressure, the liquid in the moving plate 18 flows back into the third liquid storage rod 17, and finally the moving component 3 is activated to move upward to reset. This avoids the measurement value being too low or misleading data due to the side protrusion not being constrained, so that the test results can truly reflect the overall pressure-bearing deformation characteristics of the button, providing an accurate basis for connector design and selection.

[0095] Working principle: When using the pressure deformation testing device with the button connection, first place the workpiece 4 in the placement slot of the rotating disk 6, then start the moving component 3 to move down at a stable rate. The downward movement of the moving component 3 drives the upper positioning rod 15, pressure plate 14 and disc 13 to move down synchronously. After moving down above the workpiece 4, start the motor to drive the rotating disk 6 to rotate, and then start the moving component 3 again to compress the workpiece 4.

[0096] When the rotating disk 6 is driven to rotate according to the diameter of the workpiece 4, the multiple sets of lower positioning rods 11 in the arc groove 21 simultaneously change from the diffusion state to the contraction state to clamp the workpiece 4. As the lower positioning rods 11 are displaced, they drive the first active liquid storage rod 12 to contract, and the liquid in the first active liquid storage rod 12 is pushed into the liquid storage column 10. The liquid in the liquid storage column 10 is pushed into the annular column 5.

[0097] When liquid enters the annular column 5, the liquid simultaneously enters multiple sets of third liquid storage rods 17. The third liquid storage rods 17 are pushed and extended by the liquid. As the third liquid storage rods 17 extend, they simultaneously push the upper positioning rods 15 to slide in the disk 13. The multiple sets of upper positioning rods 15 change from a spreading state to a contracting state. At this time, the diameter of the multiple sets of lower positioning rods 11 is the same as the diameter of the workpiece 4, and the diameter of the multiple sets of upper positioning rods 15 is slightly larger than the diameter of the workpiece 4.

[0098] When the movable plate 20 contacts the top of the workpiece 4, the movable plate 20 is pushed back into the pressure plate 14 by the downward pressure of the moving component 3. As the movable plate 20 retracts, the return spring 19 is first squeezed into a "pillar". Then the return spring 19 pushes the movable plate 18 and another set of return springs 19 to continue moving upward until both sets of return springs 19 are squeezed into "pillars". The movable plate 18 is pushed upward away from the reserved hole 9. At this time, the pressure plate 14 contacts the workpiece 4 and squeezes it. Multiple sets of upper positioning rods 15 are located around the workpiece 4 and limit its sides. As the moving component 3 and the pressure plate 14 continue to press down, the pressure is converted from axial force to lateral force during the downward transmission process, and the workpiece 4 will deform radially.

[0099] When the workpiece 4 is radially deformed, the upper positioning rod 15 on the surface of the workpiece 4 is radially displaced. As the upper positioning rod 15 is displaced, it pushes the piston rod of the third liquid storage rod 17 to retract. The excess liquid in the third liquid storage rod 17 flows to the middle of the moving plate 18. According to the length of the radial displacement, the corresponding liquid is adaptively pushed into the pressure plate 14 for temporary storage, so that the upper positioning rod 15 can always maintain stable support for the surface of the workpiece 4, and can also adaptively adjust according to the direction and spacing of the radial force.

[0100] When liquid flows into the first live liquid reservoir 12 from the third reservoir 17, the initial liquid in the third reservoir 17 is pushed into the second reservoir 16. Multiple sets of second reservoirs 16 extend and become taller. When the liquid in the third reservoir 17 flows into the pressure plate 14 with the radial force of the workpiece 4, the liquid in the second reservoir 16 is subjected to negative pressure and flows back into the third reservoir 17. At this time, if the radial expansion length of different sides of the workpiece 4 is the same, multiple sets of upper positioning rods 15 spread at equal intervals, and the extension length of multiple sets of second reservoirs 16 is consistent. Sensor 2 detects whether the extension length of the second reservoirs 16 is within the marked range. If the radial expansion length of different sides of the workpiece 4 is inconsistent, some of the multiple sets of second reservoirs 16 are high or low, and the multiple sets of second reservoirs 16 are not on the same horizontal plane. The workpiece 4 is detected to meet the standard based on the length of the second reservoirs 16.

[0101] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A pressure deformation testing device for a button connector, comprising a device body (1), a movable component (3) mounted on the device body (1), and a workpiece (4) placed on the device body (1), characterized in that, Also includes: Rotary disk (6) is mounted on the main body (1) of the device for placing the annular column (5); The lower positioning rod (11) is inserted above the rotating disk (6) and is driven by the rotation of the rotating disk (6) to clamp the workpiece (4). The first live liquid storage rod (12) is fixed at the bottom of the lower positioning rod (11) and retracts synchronously with its displacement. A liquid storage column (10) is installed below the rotating disk (6) to receive liquid. A pressure plate (14) and a disc (13) are fixedly installed at the bottom of the moving assembly (3) for extrusion testing of the workpiece (4). A third liquid storage rod (17) is connected above the liquid storage column (10) and extends synchronously with the change of its liquid volume. The upper positioning rod (15) is fixed on one side of the third liquid storage rod (17) and moves synchronously with it to limit the side of the workpiece (4). A movable plate (18) that is elastically set in the pressure plate (14) and provides space for the third liquid storage rod (17) after being displaced by its extrusion pressure. A second reservoir (16) is connected to the third reservoir (17) and is used to sense the radial expansion force of the workpiece (4).

2. The pressure deformation testing device for a button connector according to claim 1, characterized in that: A sensor (2) is installed on one side of the main body (1) of the device, and the sensor (2) is located close to the second liquid storage rod (16). A fixing plate (7) is fixed to the top of the main body (1) of the device. The moving component (3) includes a lifting plate, a lead screw and a limiting post. The lead screw is rotatably inserted into the main body (1) of the device, and the lifting plate is movably sleeved on the surface of the lead screw. The limiting post is movably inserted on both sides of the lifting plate.

3. The pressure deformation testing device for a button connector according to claim 1, characterized in that: The top of the rotating disk (6) is provided with a placement groove, and a rubber pad is fixedly laid in the placement groove; The surface of the rotating disk (6) is provided with an arc-shaped groove (21), and a lower positioning rod (11) is movably inserted in the first live liquid storage rod (12). The lower positioning rods (11) are evenly distributed above the rotating disk (6), and the bottom ends of the multiple sets of lower positioning rods (11) are all fixed with the first live liquid storage rod (12). A motor is installed in the main body (1) of the device at the lower end of the rotating disk (6).

4. The pressure deformation testing device for a button connector according to claim 1, characterized in that: A limiting ring (8) is provided above the rotating disk (6). The limiting ring (8) and the liquid storage column (10) are respectively fixed on the main body (1) of the device. A lower positioning rod (11) is movably inserted into the bottom end of the limiting ring (8). The surface of the liquid storage column (10) is fixed with a first live liquid storage rod (12) at equal angles, and the liquid storage column (10) and the first live liquid storage rod (12) are connected. The first live reservoir rod (12) consists of a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the first live reservoir rod (12), and one end of the piston rod is fixed to the bottom end of the lower positioning rod (11).

5. The pressure deformation testing device for a button connector according to claim 2, characterized in that: The top of the fixed plate (7) is provided with second liquid storage rods (16) at equal intervals, and the second liquid storage rods (16) are composed of two parts: a piston rod and a cylinder. The piston rod is movably inserted in the cylinder, and the surface of the piston rod is marked with a range. The diameter of the second reservoir rod (16) is smaller than the diameter of the third reservoir rod (17); Liquid is stored in the second liquid storage rod (16), the annular column (5), the third liquid storage rod (17), the liquid storage column (10), and the first live liquid storage rod (12).

6. The pressure deformation testing device for a button connector according to claim 1, characterized in that: The surface of the disc (13) is fixedly fitted with an annular column (5), and a third liquid storage rod (17) is fixed above the disc (13) and the annular column (5). The third liquid storage rod (17) consists of a piston rod and a cylinder. The piston rod is movably inserted into the cylinder of the third liquid storage rod (17), and one side of the piston rod is fixed to the upper positioning rod (15).

7. The pressure deformation testing device for a button connector according to claim 1, characterized in that: The surface of the disk (13) is movably inserted with an upper positioning rod (15), and multiple sets of upper positioning rods (15) are distributed at equal angles; The upper positioning rod (15) and the lower positioning rod (11) are respectively provided with triangular grooves on their inner sides. The upper positioning rod (15) and the lower positioning rod (11) are staggered at equal angles to each other. The upper positioning rod (15) and the lower positioning rod (11) are in contact with the surface of the workpiece (4). The upper positioning rod (15) is movably inserted into the rotating disk (6), and the surface of the rotating disk (6) is provided with a matching groove.

8. The pressure deformation testing device for a button connector according to claim 1, characterized in that: The bottom end of the pressure plate (14) is movably inserted with a movable plate (20), and the movable plate (20) is composed of a circular plate and a cylinder. The bottom of the circular plate has cylinders distributed at equal angles. The circular plate is movably inserted into the bottom of the pressure plate (14). The bottom ends of the cylinders and the circular plate are in contact with the top end of the workpiece (4).

9. The pressure deformation testing device for a button connector according to claim 1, characterized in that: The third liquid storage rod (17) is distributed in multiple sets at equal angles, and the bottom ends of the multiple sets of the third liquid storage rod (17) are connected to the liquid storage column (10); The top two sides of the third liquid storage rod (17) are connected to the pressure plate (14) and the second liquid storage rod (16), respectively.

10. The pressure deformation testing device for a button connector according to claim 8, characterized in that: The top of the movable plate (20) is fixed with a return spring (19), and the top of the return spring (19) is fixed with a movable plate (18). The top of the movable plate (18) and the middle of the pressure plate (14) are both fixed with a return spring (19). The movable plate (18) is movably inserted into the pressure plate (14). The surface of the pressure plate (14) is provided with a reserved hole (9) through it at equal angles. The pressure plate (14) is connected to the third liquid storage rod (17) through the reserved hole (9). The movable plate (18) is designed in the shape of an I-beam, and a rubber layer is fixed on the surface of the movable plate (18). The position of the movable plate (18) is adapted to the reserved hole (9).

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