A plug-in force tester for injection molded connectors
By integrating angle adjustment, tilt insertion/extraction, and dynamic vibration testing methods, the problem of existing insertion/extraction force testers being unable to simulate dynamic loads has been solved, enabling high-fidelity performance evaluation of injection molded connectors and shortening the testing cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN YOUNDE PRECISION MOULD CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing insertion and extraction force testers are unable to simulate dynamic loads in actual use, such as vibration and tilting during insertion and extraction, resulting in test results that cannot truly reflect the performance of injection molded connectors under dynamic working conditions.
An insertion and extraction force tester for injection molded connectors was designed, which integrates angle adjustment, tilt insertion and extraction and dynamic vibration testing methods. The connector is fixed by a clamping mechanism, the angle is adjusted by a small-amplitude angle fine-tuning mechanism, and the connector is driven to tilt insertion and extraction by a positioning drive mechanism. At the same time, a vibration mechanism applies small-amplitude vibration.
It enables a more realistic reflection of the performance of injection molded connectors in actual application scenarios, provides a high-fidelity experimental environment for reliability assessment of injection molded connectors, avoids the cumbersome process of traditional testing methods, and significantly shortens the testing cycle.
Smart Images
Figure CN224341226U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection molding connector testing technology, and specifically relates to an insertion and extraction force tester for injection molding connectors. Background Technology
[0002] Injection-molded connectors are made by injecting molten plastic into a precision mold under high pressure, which is then cooled and solidified to form connector components with specific electrical / mechanical properties. The production process is a systematic process of manufacturing precision connectors using engineering plastics as raw materials through injection molding. It mainly includes core processes such as raw material drying, mold preheating, molten injection, pressure holding and cooling, and automatic ejection and demolding. Subsequent processes include deburring, dimensional inspection, insertion and extraction force testing, electrical performance testing, and packaging.
[0003] The insertion and extraction force test of injection molded connectors is a key experiment used to evaluate the mechanical performance of plastic connectors. By simulating the insertion and extraction actions in actual use scenarios, parameters such as insertion force, extraction force, and retention force are accurately measured to verify the assembly reliability, contact stability, and durability of the connector. It is usually tested using an insertion and extraction force tester.
[0004] According to Chinese Patent Publication No. CN218724927U, a connector insertion and extraction force testing machine includes a base, a support rod fixedly connected to the upper surface of the base, a placement cylinder fixedly connected to the top end of the support rod, a first threaded hole communicating with the interior of the placement cylinder on the upper surface of the placement cylinder, a first screw threadedly connected to the interior of the first threaded hole, and an organism fixedly connected to the upper surface of the base.
[0005] However, when the above-mentioned devices perform insertion and extraction force tests, they first position the connector and then move the connector to perform the insertion and extraction force test. Combined with existing technologies, they only test the static insertion and extraction force of the connector, which is difficult to simulate the dynamic load in actual use (such as vibration and tilt insertion and extraction tests). As a result, the test results cannot truly reflect the performance of the connector under dynamic working conditions. This static evaluation system will mask potential failure risks such as material fatigue, contact impedance fluctuations, and micro-damage to the snap-fit structure. This will cause a significant deviation between product reliability verification and real application scenarios, which may eventually lead to quality problems such as connection failure and signal interruption. Utility Model Content
[0006] To address the difficulty in simulating dynamic loads in actual use, such as vibration and tilt insertion / extraction tests, in related technologies, this invention proposes an insertion / extraction force tester for injection molded connectors to overcome the aforementioned technical problems in existing related technologies.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model is an insertion and extraction force tester for injection molded connectors, including an insertion and extraction force tester body. A positioning frame is fixedly installed in the test area of the insertion and extraction force tester body. A positioning drive mechanism is provided on the top of the positioning frame. A vibration mechanism is provided at the drive end of the positioning drive mechanism. An angle fine adjustment mechanism is provided at the vibration end of the vibration mechanism. Two sets of clamping mechanisms are provided at the adjustment end of the angle fine adjustment mechanism and inside the positioning frame.
[0009] The clamping mechanism clamps and fixes the injection-molded connector, and the adjustment end of the angle fine-tuning mechanism drives the injection-molded connector in the clamping mechanism to make angle fine-tuning. The driving end of the positioning driving mechanism drives the injection-molded connector in the clamping mechanism to move, thereby enabling the injection-molded connector to be inserted and removed during insertion and removal. At the same time, the vibration end of the vibration mechanism drives the injection-molded connector in the clamping mechanism to vibrate.
[0010] Furthermore, the positioning drive mechanism includes a cylinder, which is fixedly installed on the top of the positioning frame. The output shaft of the cylinder is fixedly connected to a connecting column. A pressure sensor is fixedly installed at one end of the connecting column. A positioning plate is fixedly installed at the sensing end of the pressure sensor. The positioning plate is slidably connected to the surface of the positioning frame.
[0011] Furthermore, the vibration mechanism includes a sliding rod, which is fixedly connected inside the positioning plate, and a vibration frame is slidably connected to the surface of the sliding rod, which is slidably connected inside the positioning plate.
[0012] Furthermore, a motor is fixedly mounted on the surface of the positioning plate, and an eccentric disk is fixedly connected to the output shaft of the motor. A vibration rod is rotatably connected to the eccentric end of the eccentric disk, and one end of the vibration rod is rotatably connected to one end of the vibration frame.
[0013] Furthermore, the angle fine-tuning mechanism includes an angle frame, which is rotatably connected inside the vibration frame. A gear is fixedly connected to the rotating end surface of the angle frame, and a rack meshes with the surface of the gear. An electric telescopic rod is fixedly connected to one side of the vibration frame, and the output shaft of the electric telescopic rod is fixedly connected to the rack.
[0014] Furthermore, an angle frame two is rotatably connected inside the angle frame one, a gear two is fixedly connected to one end of the angle frame two, a rack two is meshed on the surface of the gear two, an electric telescopic rod two is fixedly connected to one side of the angle frame one, and the output shaft of the electric telescopic rod two is fixedly connected to the rack two.
[0015] Furthermore, the two sets of clamping mechanisms include two sets of main boards, which are respectively fixedly connected inside the positioning frame and one end of the angle frame. A bidirectional screw is rotatably connected inside the main board, and a clamping plate is threadedly connected to the surface of the bidirectional screw.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model fixes the injection-molded connector within a clamping mechanism, uses an angle fine-tuning mechanism to adjust the connector's angle slightly, and simultaneously drives the injection-molded connector to tilt and insert / remove through a positioning drive mechanism. During this process, a vibration mechanism applies small-amplitude vibrations to the injection-molded connector to simulate dynamic load conditions in actual use. This integrated testing method combining angle adjustment, tilting insertion / remove, and dynamic vibration can more realistically reflect the performance of the injection-molded connector in actual application scenarios, providing a high-fidelity experimental environment for reliability assessment of injection-molded connectors.
[0018] 2. This utility model integrates angle adjustment, tilt insertion and extraction, and dynamic vibration testing methods, avoiding the traditional insertion and extraction force tester which only has one testing mode and the cumbersome process of requiring multiple independent testing devices when testing the insertion and extraction force of injection molded connectors, thus significantly shortening the testing cycle.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a bottom view of the structure of this utility model;
[0023] Figure 3 This is a partial cross-sectional structural diagram of the present invention;
[0024] Figure 4 This is a partial structural schematic diagram of the present invention;
[0025] Figure 5 This is a schematic diagram of the vibration mechanism and angle fine-tuning mechanism of this utility model;
[0026] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Insertion and extraction force tester body; 2. Positioning frame; 3. Clamping mechanism; 301. Main board; 302. Bidirectional screw; 303. Clamping plate; 4. Positioning drive mechanism; 401. Cylinder; 402. Connecting column; 403. Pressure sensor; 404. Positioning plate; 5. Vibration mechanism; 501. Sliding rod; 502. Vibration frame; 503. Motor; 504. Eccentric plate; 505. Vibration rod; 6. Angle fine adjustment mechanism; 601. Angle frame one; 602. Gear one; 603. Rack one; 604. Electric telescopic rod one; 605. Angle frame two; 606. Gear two; 607. Rack two; 608. Electric telescopic rod two. Detailed Implementation
[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0031] Please see Figures 1-6 As shown, this utility model is an insertion and extraction force tester for injection molded connectors, including an insertion and extraction force tester body 1. A positioning frame 2 is fixedly installed in the test area of the insertion and extraction force tester body 1. A positioning drive mechanism 4 is provided on the top of the positioning frame 2. A vibration mechanism 5 is provided at the drive end of the positioning drive mechanism 4. An angle fine adjustment mechanism 6 is provided at the vibration end of the vibration mechanism 5. Two sets of clamping mechanisms 3 are provided at the adjustment end of the angle fine adjustment mechanism 6 and inside the positioning frame 2.
[0032] The injection-molded connector is clamped and fixed by the clamping mechanism 3, and the adjustment end of the angle fine-tuning mechanism 6 drives the injection-molded connector in the clamping mechanism 3 to make fine-tuning of the angle. The driving end of the positioning drive mechanism 4 drives the injection-molded connector in the clamping mechanism 3 to move, so that the injection-molded connector can be inserted and removed. At the same time as insertion and removal, the vibration end of the vibration mechanism 5 drives the injection-molded connector in the clamping mechanism 3 to vibrate.
[0033] By placing the injection-molded connectors within the clamping mechanism 3, the clamping mechanism 3 clamps and fixes the injection-molded connectors, making them correspond to each other. The positioning drive mechanism 4 drives the injection-molded connectors within the clamping mechanism 3 to move, thereby enabling insertion and removal tests between the injection-molded connectors. When dynamic testing is required, the adjustment end of the angle fine-tuning mechanism 6 drives the injection-molded connectors within the clamping mechanism 3 to fine-tune the angle, and then the drive end of the positioning drive mechanism 4 drives the injection-molded connectors within the clamping mechanism 3 to move, thereby enabling tilted insertion and removal tests between the injection-molded connectors. Simultaneously, the vibration end of the vibration mechanism 5 drives the injection-molded connectors within the clamping mechanism 3 to vibrate slightly, achieving the dynamic vibration effect in actual use.
[0034] By fixing the injection-molded connector within the clamping mechanism 3, the angle fine-tuning mechanism 6 is used to precisely adjust the angle of the connector. Simultaneously, the positioning drive mechanism 4 drives the injection-molded connector to perform tilting insertion and extraction movements. During this process, the vibration mechanism 5 applies small-amplitude vibrations to the injection-molded connector to simulate dynamic load conditions in actual use. This integrated testing method, which combines angle adjustment, tilting insertion and extraction, and dynamic vibration, can more realistically reflect the performance of the injection-molded connector in actual application scenarios, providing a high-fidelity experimental environment for the reliability assessment of injection-molded connectors.
[0035] In one embodiment, the positioning drive mechanism 4 includes a cylinder 401, which is fixedly installed on the top of the positioning frame 2. The output shaft of the cylinder 401 is fixedly connected to a connecting column 402. A pressure sensor 403 is fixedly installed at one end of the connecting column 402. A positioning plate 404 is fixedly installed at the sensing end of the pressure sensor 403. The positioning plate 404 is slidably connected to the surface of the positioning frame 2.
[0036] The cylinder 401 drives the connecting column 402 to move, causing the connecting column 402 to slide the pressure sensor 403 and the positioning plate 404 on the surface of the positioning frame 2. During the insertion and removal process, the pressure sensor 403 collects data.
[0037] In addition, in specific applications, the insertion and extraction force tester body 1 uses pressure sensor 403 to detect the force changes during the insertion and extraction of the connector in real time. When the test fixture clamps the injection-molded connector and moves, the pressure sensor 403 converts the mechanical force into an electrical signal, which is then processed by the signal amplifier and transmitted to the data acquisition system (sampling rate is usually ≥1kHz). After eliminating interference through AD conversion and digital filtering, the system plots the force-displacement curve in real time and automatically identifies key parameters such as the maximum insertion force and holding force. During the test, the precision guide mechanism ensures single-axis force, while the grating ruler or encoder synchronously records the displacement data (resolution up to 0.1μm). Finally, the insertion and extraction force deviation is calculated according to the ISO / IEC standard (typical accuracy ±1%FS).
[0038] In one embodiment, the vibration mechanism 5 includes a sliding rod 501, which is fixedly connected inside the positioning plate 404. A vibration frame 502 is slidably connected to the surface of the sliding rod 501. The vibration frame 502 is slidably connected inside the positioning plate 404. A motor 503 is fixedly installed on the surface of the positioning plate 404. An eccentric disk 504 is fixedly connected to the output shaft of the motor 503. A vibration rod 505 is rotatably connected to the eccentric end of the eccentric disk 504. One end of the vibration rod 505 is rotatably connected to one end of the vibration frame 502.
[0039] Start the motor 503, which drives the eccentric disk 504 to rotate. The eccentric disk 504 drives one end of the vibration rod 505 to rotate around the eccentric disk 504. The other end of the vibration rod 505 drives the vibration frame 502 to slide slightly on the surface of the sliding rod 501. The vibration amplitude is small and within the range where the injection molding connector can be inserted and removed.
[0040] In one embodiment, the angle fine-tuning mechanism 6 includes an angle frame 601, which is rotatably connected inside the vibration frame 502. A gear 602 is fixedly connected to the rotating end surface of the angle frame 601, and a rack 603 meshes with the surface of the gear 602. An electric telescopic rod 604 is fixedly connected to one side of the vibration frame 502, and the output shaft of the electric telescopic rod 604 is fixedly connected to the rack 603. An angle frame 605 is rotatably connected inside the angle frame 601. A gear 606 is fixedly connected to one end of the angle frame 605, and a rack 607 meshes with the surface of the gear 606. An electric telescopic rod 608 is fixedly connected to one side of the angle frame 601, and the output shaft of the electric telescopic rod 608 is fixedly connected to the rack 607.
[0041] The electric telescopic rod 604 drives the rack 603 to move slightly, causing the rack 603 to drive the gear 602 to rotate slightly. The gear 602 then drives the angle frame 601 to rotate inside the vibration frame 502, allowing for slight angle adjustment. The electric telescopic rod 608 drives the rack 607 to move slightly, causing the rack 607 to drive the gear 606 to rotate slightly. This causes the gear 602 to drive the angle frame 605 to rotate slightly, thus fulfilling the need for slight angle adjustment of the injection-molded connector located in the clamping mechanism 3 at one end of the angle frame 605.
[0042] In one embodiment, for the above-mentioned clamping mechanism 3, the two sets of clamping mechanisms 3 include two sets of main boards 301. The two sets of main boards 301 are respectively fixedly connected to the inside of the positioning frame 2 and one end of the angle frame 605. A bidirectional screw 302 is rotatably connected inside the main board 301, and a clamping plate 303 is threadedly connected to the surface of the bidirectional screw 302.
[0043] By rotating the bidirectional screw 302, the bidirectional screw 302 drives the clamping plate 303 to move toward the injection-molded connector on the surface of the main board 301. The clamping plate 303 clamps and fixes the injection-molded connector. By driving the main board 301 at one end of the angle bracket 2 605 to move, the injection-molded connector in the main board 301 at one end of the angle bracket 2 605 is inserted into the injection-molded connector in the main board 301 inside the positioning bracket 2, thus completing the insertion and extraction force test.
[0044] Through the above technical solution, by rotating the bidirectional screw 302, the bidirectional screw 302 drives the clamping plate 303 to move towards the injection-molded connector on the surface of the main board 301. The clamping plate 303 clamps and fixes the injection-molded connector. The electric telescopic rod 604 drives the rack 603 to move slightly, causing the rack 603 to drive the gear 602 to rotate slightly. The gear 602 causes the angle bracket 601 to rotate inside the vibration frame 502 for slight angle adjustment. The electric telescopic rod 608 drives the rack 607 to move slightly, causing the rack 607 to drive the gear 606 to rotate slightly. The gear 602 causes the angle bracket 605 to rotate slightly, completing the slight angle adjustment of the injection-molded connector located in the main board 301 at one end of the angle bracket 605. To meet the angle adjustment requirements, cylinder 401 moves connecting column 402, causing it to slide pressure sensor 403 and positioning plate 404 on the surface of positioning frame 2. This allows positioning frame 2 to perform insertion and extraction force testing on the injection-molded connector. During this process, motor 503 drives eccentric disk 504 to rotate, causing eccentric disk 504 to drive one end of vibration rod 505 to rotate around eccentric disk 504. The other end of vibration rod 505 drives vibration frame 502 to slide slightly on the surface of sliding rod 501. The vibration amplitude is small and within the insertion and extraction range of the injection-molded connector. This integrated testing method, which combines angle adjustment, tilt insertion / extraction, and dynamic vibration, can more realistically reflect the performance of injection-molded connectors in actual application scenarios, providing a high-fidelity experimental environment for reliability assessment of injection-molded connectors.
[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An insertion / extraction force tester for injection molded connectors, comprising an insertion / extraction force tester body (1), characterized in that, The test area of the insertion and extraction force tester body (1) is fixedly installed with a positioning frame (2). The top of the positioning frame (2) is provided with a positioning drive mechanism (4). The drive end of the positioning drive mechanism (4) is provided with a vibration mechanism (5). The vibration end of the vibration mechanism (5) is provided with an angle fine adjustment mechanism (6). The adjustment end of the angle fine adjustment mechanism (6) and the interior of the positioning frame (2) are both provided with two sets of clamping mechanisms (3). The injection molding connector is clamped and fixed by the clamping mechanism (3), and the adjustment end of the angle fine-tuning mechanism (6) drives the injection molding connector in the clamping mechanism (3) to make angle fine-tuning. The driving end of the positioning driving mechanism (4) drives the injection molding connector in the clamping mechanism (3) to move, so that the injection molding connector can be inserted and removed. At the same time as insertion and removal, the vibration end of the vibration mechanism (5) drives the injection molding connector in the clamping mechanism (3) to vibrate.
2. The insertion and extraction force tester for injection molded connectors according to claim 1, characterized in that, The positioning drive mechanism (4) includes a cylinder (401), which is fixedly installed on the top of the positioning frame (2). The output shaft of the cylinder (401) is fixedly connected to a connecting column (402). A pressure sensor (403) is fixedly installed at one end of the connecting column (402). A positioning plate (404) is fixedly installed at the sensing end of the pressure sensor (403). The positioning plate (404) is slidably connected to the surface of the positioning frame (2).
3. The insertion and extraction force tester for injection molded connectors according to claim 2, characterized in that, The vibration mechanism (5) includes a sliding rod (501), which is fixedly connected inside the positioning plate (404). A vibration frame (502) is slidably connected to the surface of the sliding rod (501), which is slidably connected inside the positioning plate (404).
4. The insertion and extraction force tester for injection molded connectors according to claim 3, characterized in that, A motor (503) is fixedly mounted on the surface of the positioning plate (404). An eccentric disk (504) is fixedly connected to the output shaft of the motor (503). A vibration rod (505) is rotatably connected to the eccentric end of the eccentric disk (504). One end of the vibration rod (505) is rotatably connected to one end of the vibration frame (502).
5. The insertion and extraction force tester for injection molded connectors according to claim 3, characterized in that, The angle fine-tuning mechanism (6) includes an angle frame (601), which is rotatably connected inside the vibration frame (502). A gear (602) is fixedly connected to the rotating end surface of the angle frame (601), and a rack (603) meshes with the surface of the gear (602). An electric telescopic rod (604) is fixedly connected to one side of the vibration frame (502), and the output shaft of the electric telescopic rod (604) is fixedly connected to the rack (603).
6. The insertion and extraction force tester for injection molded connectors according to claim 5, characterized in that, Angle frame one (601) is rotatably connected to angle frame two (605). One end of angle frame two (605) is fixedly connected to gear two (606). Gear two (607) meshes with the surface of gear two (606). An electric telescopic rod two (608) is fixedly connected to one side of angle frame one (601). The output shaft of electric telescopic rod two (608) is fixedly connected to rack two (607).
7. The insertion and extraction force tester for injection molded connectors according to claim 3, characterized in that, The two sets of clamping mechanisms (3) include two sets of main boards (301). The two sets of main boards (301) are respectively fixedly connected inside the positioning frame (2) and one end of the angle frame (605). A bidirectional screw (302) is rotatably connected inside the main board (301), and a clamping plate (303) is threadedly connected to the surface of the bidirectional screw (302).