A holding force testing device

Abstract

The present invention belongs to the technical field of testing devices, and in particular to a retention force testing device. In view of the diverse force directions of electrical connector terminals, it is difficult for the testing device to effectively simulate actual use conditions, the test data is single, and the test effect is not comprehensive enough. The following scheme is now proposed, including a bottom base, the top of the bottom base is fixedly connected to a fixed plate seat, the top of the fixed plate seat is fixedly connected to four support rods, and the outer walls of the four support rods are fixedly connected to the same mounting top plate, the top of the mounting top plate is provided with a mounting opening, the inside of the mounting opening is provided with a test module, and the top of the fixed plate seat is provided with a mounting groove. A retention force testing device disclosed in the present invention has the function of increasing the test effect. When conducting a test, the device can simulate the actual use conditions and change the force direction of the electrical connector terminal, thereby increasing the amount of test data during the test, thereby increasing the comprehensiveness of the test and increasing the use effect of the device.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to a holding force testing device. Background Art

[0002] In addition to meeting general performance requirements, electrical connectors must have good contact, reliable operation, and easy maintenance. Their reliability directly affects the normal operation of the aircraft circuit and involves the safety of the entire host.

[0003] Therefore, the host circuit has very strict requirements on the quality and reliability of electrical connectors. It is precisely because of the high quality and high reliability of electrical connectors that they are widely used in military systems such as aviation, aerospace, and national defense. Common classification methods for electrical connectors include appearance, structure, and purpose.

[0004] For electrical connector terminals, reliability is the most important indicator, and the retention force of the terminal determines the reliability of the terminal. The terminal requirements for new energy vehicles or rail transit connectors are more stringent, so strict control is required during the production stage, and it is best to achieve full inspection to ensure the reliability of the terminal.

[0005] Existing electrical connector terminals are often only tested in a single direction when conducting retention force tests. However, in actual usage scenarios, the force directions of electrical connector terminals are diverse, and the test device is difficult to effectively simulate actual usage conditions. The test data is single and the test results are not comprehensive enough. Summary of the invention

[0006] The present invention discloses a retention force testing device, which aims to solve the technical problems that the existing electrical connector terminals in the background technology are often only tested in a single direction when performing their retention force tests. However, in actual usage scenarios, the force directions of the electrical connector terminals are diverse, the testing device is difficult to effectively simulate the actual usage conditions, the test data is single, and the test effect is not comprehensive enough.

[0007] A retention force testing device proposed in the present invention comprises a bottom base, a fixed plate base is fixedly connected to the top of the bottom base, four support rods are fixedly connected to the top of the fixed plate base, and the outer walls of the four support rods are fixedly connected to the same mounting top plate, a mounting opening is provided at the top of the mounting top plate, a test module is arranged inside the mounting opening, and a mounting groove is provided at the top of the fixed plate base, a terminal replacement module is arranged inside the mounting groove.

[0008] By providing a bottom base, a fixed plate base, a support rod, a mounting top plate, a mounting port, a test module, a mounting slot and a terminal replacement module, the test module can simulate actual usage conditions when in use, so that the force direction of the electrical connector terminal can be changed during the retention force test, thereby increasing the comprehensiveness of the detection and meeting the retention force test requirements; the terminal replacement module can disassemble the terminal seat and the replacement plate seat when in use, thereby facilitating their replacement, so as to change the size of the terminal seat according to different requirements during testing, thereby increasing the applicability of the device and meeting the test and use requirements of the device.

[0009] In a preferred scheme, the test module includes an electric telescopic rod, which is fixedly connected to the inner wall of the mounting opening, the output end of the electric telescopic rod is fixedly connected to the mounting bracket, the bottom of the mounting bracket is fixedly connected to a movable tooth frame, and the movable tooth frame is movably connected to the outer walls of the four support rods; the top inner wall of the mounting bracket is fixedly connected to a stepper motor, the output shaft of the stepper motor is connected to a fixed frame through a coupling, the inner walls on both sides of the fixed frame are fixedly connected to the same mounting plate seat, the top of the mounting plate seat is provided with a movable opening, and the mounting plate seat is movably connected to an axis rod member, the outer wall of the axis rod member is fixedly connected to a transmission gear, and the transmission gear is meshed with the movable tooth frame; the inner wall of the movable opening is fixedly connected to two guide rods, the outer walls of the two guide rods are movably connected to the same movable block member, the bottom of the movable block member is fixedly connected to the mounting plate member, and the top of the axis rod member is fixedly connected to an adjusting plate member, the top of the adjusting plate and the top of the movable block member are both fixedly connected to the fixed rod member, and the outer walls of the two fixed rod members are movably connected to the same linkage rod.

[0010] By providing a test module, the test module can change the force direction of the electrical connector terminal retention force test according to actual usage conditions when in use, thereby increasing the amount of test data when in use, thereby increasing the comprehensiveness of the test and improving the use effect of the device. When in use, the test module can drive the movable tooth frame away from the fixed plate seat, thereby causing the test terminal to be subjected to force for testing, thereby increasing the diversity of the device.

[0011] In a preferred solution, a connecting cable is fixedly connected to the bottom of the mounting plate, a connecting member is fixedly connected to the bottom end of the connecting cable, and a terminal fixing module is provided on the connecting member; the terminal fixing module includes a plurality of connecting cables, one end of each of the plurality of connecting cables is fixedly connected to a connecting frame, the bottoms of each of the plurality of connecting frames are fixedly connected to the mounting frame, and the outer walls of each of the plurality of mounting frames are provided with a plurality of fixing holes, and the interiors of each of the plurality of fixing holes are fixedly connected to fixing blocks; a fixing opening is provided on the top inner walls of each of the plurality of mounting frames, a driving motor is fixedly connected to the inner walls of each of the plurality of fixing openings, and the output shafts of each of the plurality of driving motors are connected via a coupling There is a driving gear, and one end of multiple fixed blocks is movably connected to a screw rod, one end of multiple screw rods is fixedly connected to a driven gear, and the multiple driven gears are respectively located inside multiple mounting frames; three driven gears inside the same mounting frame are meshed with the same driving gear, the outer walls of multiple screw rods are movably connected to fixed splints, the multiple fixed splints are respectively located inside the multiple mounting frames, and the outer walls of one side of three fixed blocks on the same mounting frame are fixedly connected to the same guide, and the three fixed splints inside the same mounting frame are movably connected to the outer wall of the same guide.

[0012] By providing a terminal fixing module, the terminal fixing module can fix the test terminal when in use, and the device can fix test terminals of different sizes when fixing, so as to increase the applicability of the device when in use, and the terminal fixing module can fix multiple test terminals as needed when in use, so as to simulate the situation of bundling multiple terminal harnesses during actual use during testing, so as to further increase the comprehensiveness of the device test.

[0013] In a preferred embodiment, the terminal replacement module includes a replacement plate base, a plurality of terminal bases are fixedly connected to the top of the replacement plate base, test terminals are arranged on the plurality of terminal bases, and four connecting brackets are fixedly connected to the top of the replacement plate base; locking holes are arranged on the tops of the four connecting brackets, and four circular holes are opened on the top of the fixed plate base, the four circular holes are respectively connected to the four locking holes, and the same locking screw is arranged inside each connected circular hole and the locking hole.

[0014] By providing a terminal replacement module, the terminal replacement module can disassemble the terminal seat and the replacement plate seat when in use, thereby facilitating their replacement, thereby increasing the convenience of using the device; and when testing, the device can replace the terminal seat and the replacement plate seat according to different needs to change the size of the terminal seat to adapt to test terminals of different sizes, thereby increasing the applicability and detection diversity of the device.

[0015] From the above, it can be seen that the retention force testing device provided by the present invention has the function of increasing the test effect. When conducting a test, the device can simulate actual usage conditions and change the force direction of the electrical connector terminal, thereby increasing the amount of test data during the test, thereby increasing the comprehensiveness of the test and increasing the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a holding force testing device proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the overall bottom view structure of a holding force testing device proposed by the present invention;

[0018] Figure 3 A schematic diagram of the combined structure of a test module and a terminal fixing module of a holding force test device proposed by the present invention;

[0019] Figure 4 A schematic diagram of the structure of a test module of a holding force test device proposed by the present invention;

[0020] Figure 5 A schematic diagram of the disassembly of a test module of a holding force test device proposed by the present invention;

[0021] Figure 6 A schematic diagram of the structure of a terminal replacement module of a holding force testing device proposed by the present invention;

[0022] Figure 7 This is a schematic structural diagram of a terminal fixing module of a holding force testing device proposed by the present invention.

[0023] In the figure: 1, bottom base; 2, fixed plate seat; 3, support rod; 4, test module; 401, electric telescopic rod; 402, mounting bracket; 403, movable gear frame; 404, mounting plate; 405, movable opening; 406, mounting plate seat; 407, shaft rod; 408, stepping motor; 409, linkage rod; 410, fixed rod; 411, adjustment sheet; 412, transmission gear; 413, fixed frame; 414, movable block; 415, guide rod; 5, top plate installation; 6 , terminal fixing module; 601, connecting cable; 602, connecting frame; 603, mounting frame; 604, fixing block; 605, fixing clamp; 606, guide; 607, driven gear; 608, driving motor; 609, driving gear; 610, screw rod; 7, terminal replacement module; 701, locking hole; 702, locking screw; 703, terminal seat; 704, replacement plate seat; 705, connecting bracket; 8, connecting cable; 9, connecting piece; 10, test terminal. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] The retention force test device disclosed in the present invention is mainly used for electrical connector terminals with various force directions. The test device is difficult to effectively simulate actual use conditions, the test data is single, and the test effect is not comprehensive enough.

[0026] scene.

[0027] Reference Figure 1-Figure 7 A retention force testing device comprises a bottom base 1, a fixed plate base 2 is fixedly connected to the top of the bottom base 1, four support rods 3 are fixedly connected to the top of the fixed plate base 2, and the outer walls of the four support rods 3 are fixedly connected to the same mounting top plate 5, a mounting opening is opened at the top of the mounting top plate 5, a test module 4 is arranged inside the mounting opening, and a mounting groove is opened at the top of the fixed plate base 2, a terminal replacement module 7 is arranged inside the mounting groove.

[0028] Specifically, the test module 4 can simulate actual usage conditions when in use, so that the force direction of the electrical connector terminal can be changed when performing a retention force test, thereby increasing the comprehensiveness of its detection and meeting the retention force test requirements; the terminal replacement module 7 can disassemble the terminal seat 703 and the replacement plate seat 704 when in use, thereby facilitating their replacement, so as to change the size of the terminal seat 703 according to different requirements during testing, thereby increasing the applicability of the device and meeting the test and use requirements of the device.

[0029] Reference Figure 1-Figure 5In a preferred embodiment, the test module 4 includes an electric telescopic rod 401, which is fixedly connected to the inner wall of the mounting opening, and the output end of the electric telescopic rod 401 is fixedly connected to a mounting bracket 402, and the bottom of the mounting bracket 402 is fixedly connected to a movable tooth frame 403, and the movable tooth frame 403 is slidably connected to the outer walls of the four support rods 3; the top inner wall of the mounting bracket 402 is fixedly connected to a stepper motor 408, and the output shaft of the stepper motor 408 is connected to a fixed frame 413 through a coupling, and the inner walls on both sides of the fixed frame 413 are fixedly connected to the same mounting plate seat 406, and a movable opening 405 is opened on the top of the mounting plate seat 406, and the mounting plate seat 406 is installed. An axial rod member 407 is connected to the mounting plate seat 406 through a bearing, and a transmission gear 412 is fixedly connected to the outer wall of the axial rod member 407, and the transmission gear 412 is meshed with the movable gear frame 403; two guide rods 415 are fixedly connected to the inner wall of the movable opening 405, and the outer walls of the two guide rods 415 are slidably connected to the same movable block member 414, and the bottom of the movable block member 414 is fixedly connected to the mounting plate member 404, and the top of the axial rod member 407 is fixedly connected to an adjusting piece 411, and the top of the adjusting piece 411 and the top of the movable block member 414 are fixedly connected to a fixed rod member 410, and the outer walls of the two fixed rod members 410 are connected to the same linkage rod 409 through a bearing.

[0030] Specifically, during the test, the stepper motor 408 is started, and the fixed frame 413 is driven to rotate by the stepper motor 408, and then the mounting plate seat 406 is driven to rotate by the fixed frame 413, and the transmission gear 412 is driven to rotate by the mounting plate seat 406. At this time, since the transmission gear 412 is meshed with the movable tooth frame 403, the transmission gear 412 drives the shaft member 407 and the adjustment plate 411 to rotate, and then drives the linkage rod 409 to move, and drives the movable block member 414 to move on the guide rod 415 through the linkage rod 409, so as to change the position of the movable block member 414 and the mounting plate member 404, and then change the force direction of the test terminal 10. After the change, the electric telescopic rod 401 is started, and the mounting bracket 402 and the movable tooth frame 403 are driven to rise by the electric telescopic rod 401 to perform the holding force detection;

[0031] In a specific application scenario, the test module 4 is suitable for the electrical connector terminal retention force test, that is, the test module 4 can change the force direction of the electrical connector terminal retention force test according to actual usage when in use, thereby increasing the amount of test data when in use, thereby increasing the comprehensiveness of the test and improving the use effect of the device. When in use, the test module 4 can drive the movable tooth frame 403 away from the fixed plate seat 2, thereby causing the test terminal 10 to be subjected to force for testing, thereby increasing the diversity of the device.

[0032] Reference Figure 1 , Figure 3 , Figure 6 and Figure 7 In a preferred embodiment, the bottom of the mounting plate 404 is fixedly connected to a connecting cable 8, the bottom end of the connecting cable 8 is fixedly connected to a connecting member 9, and a terminal fixing module 6 is arranged on the connecting member 9; the terminal fixing module 6 includes a plurality of connecting cables 601, one end of each of the plurality of connecting cables 601 is fixedly connected to a connecting frame 602, the bottoms of each of the plurality of connecting frames 602 are fixedly connected to a mounting frame 603, and the outer walls of each of the plurality of mounting frames 603 are provided with a plurality of fixing holes, and the interiors of each of the plurality of fixing holes are fixedly connected to a fixing block 604; the top inner walls of each of the plurality of mounting frames 603 are provided with fixing openings, the inner walls of each of the plurality of fixing openings are fixedly connected to a driving motor 608, the output shafts of each of the plurality of driving motors 608 are connected to a driving gear 609 through a coupling, and a plurality of One end of each fixed block 604 is connected to a screw rod 610 through a bearing, and one end of each screw rod 610 is fixedly connected to a driven gear 607, and the driven gears 607 are respectively located inside multiple mounting frames 603; the three driven gears 607 inside the same mounting frame 603 are all meshed with the same driving gear 609, and the outer walls of the multiple screw rods 610 are connected to fixed clamps 605 through threads, and the multiple fixed clamps 605 are respectively located inside multiple mounting frames 603, and the outer walls of one side of three fixed blocks 604 on the same mounting frame 603 are fixedly connected to the same guide member 606, and the three fixed clamps 605 inside the same mounting frame 603 are slidably connected to the outer wall of the same guide member 606.

[0033] Specifically, when in use, the mounting frame 603 is provided with the outside of the test terminal 10, and the driving motor 608 is started, and the driving motor 608 drives the driving gear 609 to rotate. At this time, since the driving gear 609 is meshed with the driven gear 607, the driving motor 608 drives the driven gear 607 to rotate, and then the driven gear 607 drives the screw rod 610 to rotate, and the screw rod 610 rotates to drive the fixed clamping plate 605 to move, so as to fix the test terminal 10, and the fixed number can be changed as needed during the test;

[0034] In a specific application scenario, the terminal fixing module 6 is suitable for the fixing link of the terminal retention force test of the electrical connector, that is, the terminal fixing module 6 can fix the test terminal 10 when in use, and the device can fix test terminals 10 of different sizes when fixing, so as to increase the applicability of the device when in use, and the terminal fixing module 6 can fix multiple test terminals 10 as needed when in use, so as to simulate the situation of bundling multiple terminal harnesses during actual use during testing, so as to further increase the comprehensiveness of the device test.

[0035] Reference Figure 1and Figure 6 In a preferred embodiment, the terminal replacement module 7 includes a replacement plate base 704, and a plurality of terminal bases 703 are fixedly connected to the top of the replacement plate base 704, and a test terminal 10 is provided on each of the plurality of terminal bases 703, and four connecting brackets 705 are fixedly connected to the top of the replacement plate base 704; locking holes 701 are provided on the tops of the four connecting brackets 705, and four circular holes are opened on the top of the fixed plate base 2, and the four circular holes are respectively connected to the four locking holes 701, and the same locking screw 702 is provided inside each connected circular hole and the locking hole 701.

[0036] Specifically, when replacing the terminal seat 703, the locking screw 702 is rotated so that the locking screw 702 removes the locking hole 701, so that the connecting bracket 705 is separated from the fixing plate seat 2, and then the replacement plate seat 704 is taken out to replace the replacement plate seat 704 and the terminal seat 703. After the replacement, the locking screw 702 is set inside the locking hole 701 to fix the connecting bracket 705, and the replacement is completed;

[0037] In a specific application scenario, the terminal replacement module 7 is suitable for replacing the test terminal 10, that is, the terminal replacement module 7 can disassemble the terminal seat 703 and the replacement plate seat 704 when in use, so as to facilitate replacement thereof, thereby increasing the convenience of using the device, and when testing, the device can replace the terminal seat 703 and the replacement plate seat 704 according to different needs to change the size of the terminal seat 703 to adapt to test terminals 10 of different sizes, thereby increasing the applicability and detection diversity of the device.

[0038] Working principle: When in use, the mounting frame 603 is set with the outside of the test terminal 10, and the driving motor 608 is started, and the driving motor 608 drives the driving gear 609 to rotate. At this time, since the driving gear 609 is meshed with the driven gear 607, the driving motor 608 drives the driven gear 607 to rotate, and then the driven gear 607 drives the screw rod 610 to rotate, and the screw rod 610 rotates to drive the fixed clamping plate 605 to move, so as to fix the test terminal 10, and the fixed number can be changed as needed during the test;

[0039] During the test, the stepper motor 408 is started, and the fixed frame 413 is driven to rotate by the stepper motor 408, and then the mounting plate seat 406 is driven to rotate by the fixed frame 413, and the transmission gear 412 is driven to rotate by the mounting plate seat 406. At this time, since the transmission gear 412 is meshed with the movable tooth frame 403, the transmission gear 412 drives the shaft member 407 and the adjustment plate 411 to rotate, and then drives the linkage rod 409 to move, and drives the movable block member 414 to move on the guide rod 415 through the linkage rod 409, so as to change the position of the movable block member 414 and the mounting plate member 404, and then change the force direction of the test terminal 10. After the change, the electric telescopic rod 401 is started, and the mounting bracket 402 and the movable tooth frame 403 are driven to rise by the electric telescopic rod 401 to perform the holding force detection;

[0040] When replacing the terminal seat 703, rotate the locking screw 702 so that the locking screw 702 removes the locking hole 701, thereby separating the connecting bracket 705 from the fixed plate seat 2, and then take out the replacement plate seat 704 to replace the replacement plate seat 704 and the terminal seat 703. After replacement, set the locking screw 702 inside the locking hole 701 to fix the connecting bracket 705 to complete the replacement.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A holding force testing device, comprising a base (1), characterized in that: The top of the bottom base (1) is fixedly connected to a fixed plate seat (2), the top of the fixed plate seat (2) is fixedly connected to four support rods (3), and the outer walls of the four support rods (3) are fixedly connected to the same mounting top plate (5), the top of the mounting top plate (5) is provided with a mounting opening, the inside of the mounting opening is provided with a test module (4), and the top of the fixed plate seat (2) is provided with a mounting groove, the inside of the mounting groove is provided with a terminal replacement module (7); The test module (4) comprises an electric telescopic rod (401), the electric telescopic rod (401) being fixedly connected to the inner wall of the mounting opening, the output end of the electric telescopic rod (401) being fixedly connected to a mounting bracket (402), the bottom of the mounting bracket (402) being fixedly connected to a movable tooth frame (403), and the movable tooth frame (403) being movably connected to the outer walls of four support rods (3); a stepper motor (408) being fixedly connected to the inner wall at the top of the mounting bracket (402), the output shaft of the stepper motor (408) being connected to a fixed frame (413) via a coupling, the inner walls on both sides of the fixed frame (413) being fixedly connected to the same mounting plate seat (406), the top of the mounting plate seat (406) being provided with a movable opening (405), and the mounting plate seat (4 06) is movably connected with an axle rod (407), the outer wall of the axle rod (407) is fixedly connected with a transmission gear (412), and the transmission gear (412) is meshed with the movable gear frame (403); the inner wall of the movable opening (405) is fixedly connected with two guide rods (415), the outer walls of the two guide rods (415) are movably connected with the same movable block (414), the bottom of the movable block (414) is fixedly connected with a mounting plate (404), and the top of the axle rod (407) is fixedly connected with an adjustment plate (411), the top of the adjustment plate (411) and the top of the movable block (414) are both fixedly connected with a fixed rod (410), and the outer walls of the two fixed rods (410) are movably connected with the same linkage rod (409).

2. A holding force testing device according to claim 1, characterized in that: The bottom of the mounting plate (404) is fixedly connected to a connecting cable (8), the bottom end of the connecting cable (8) is fixedly connected to a connecting piece (9), and a terminal fixing module (6) is provided on the connecting piece (9).

3. A holding force testing device according to claim 2, characterized in that: The terminal fixing module (6) comprises a plurality of connection cables (601), one end of each of the plurality of connection cables (601) being fixedly connected to a connection frame (602), the bottoms of each of the plurality of connection frames (602) being fixedly connected to a mounting frame (603), and the outer walls of each of the plurality of mounting frames (603) being provided with a plurality of fixing holes, and the interiors of each of the plurality of fixing holes being fixedly connected to a fixing block (604).

4. A holding force testing device according to claim 3, characterized in that: The top inner walls of the multiple installation frames (603) are each provided with a fixing opening, the inner walls of the multiple fixing openings are each fixedly connected to a driving motor (608), the output shafts of the multiple driving motors (608) are each connected to a driving gear (609) via a coupling, and one end of the multiple fixed blocks (604) is each movably connected to a lead screw member (610), one end of the multiple lead screw members (610) is each fixedly connected to a driven gear (607), and the multiple driven gears (607) are respectively located inside the multiple installation frames (603).

5. A holding force testing device according to claim 4, characterized in that: The three driven gears (607) inside the same installation frame (603) are all meshed with the same driving gear (609), the outer walls of the multiple screw rods (610) are all movably connected to the fixed clamps (605), the multiple fixed clamps (605) are respectively located inside the multiple installation frames (603), and the outer walls of one side of three fixed blocks (604) on the same installation frame (603) are all fixedly connected to the same guide member (606), and the three fixed clamps (605) inside the same installation frame (603) are all movably connected to the outer wall of the same guide member (606).

6. A holding force testing device according to claim 1, characterized in that: The terminal replacement module (7) comprises a replacement plate seat (704), a plurality of terminal seats (703) being fixedly connected to the top of the replacement plate seat (704), a test terminal (10) being arranged on each of the plurality of terminal seats (703), and four connection brackets (705) being fixedly connected to the top of the replacement plate seat (704).

7. A holding force testing device according to claim 6, characterized in that: The tops of the four connecting brackets (705) are all provided with locking holes (701), and the top of the fixing plate seat (2) is provided with four circular holes, the four circular holes are respectively connected to the four locking holes (701), and the same locking screw (702) is arranged inside each of the connected circular holes and locking holes (701).

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