Vertical terminal plugging force testing machine

Abstract

The utility model discloses a vertical terminal plugging force testing machine, which comprises an upper clamping device, a lower clamping device, a pull pressure sensor, a round rim hand wheel, a controller and a display, and is characterized in that the upper clamping device is positioned above the lower clamping device, and the bottom of a guide rod of the round rim hand wheel is connected with the upper clamping device through the pull pressure sensor; when the round rim hand wheel is rotated, the upper clamping device and the lower clamping device get close to each other or get away from each other, the controller is connected with the pull pressure sensor, and the displayer is connected with the controller. The vertical terminal plugging force testing machine is simple in structure, after a wiring terminal is fixed on the upper clamping device and the lower clamping device, the plugging force of the wiring terminal can be tested only by rotating the round rim hand wheel, and the vertical terminal plugging force testing machine is very convenient to operate; the device is especially suitable for an application scene in which only several or dozens of terminals are subjected to insertion and extraction force testing at a time.

Description

Technical Field

[0001] The utility model relates to the field of terminal testing, in particular to a vertical terminal plugging and pulling force testing machine. Background Art

[0002] The plugging and extraction force test of terminal blocks is a very important test in the electronics manufacturing industry. It is used to evaluate the force required for the terminal blocks to be inserted and removed to ensure the reliability of the connection and the quality of the product. This test is essential to ensure the performance of the terminal blocks in actual use. It can prevent connection problems caused by excessive or insufficient plugging and extraction force. The plugging and extraction force test of the terminal blocks is an important part of ensuring the quality and reliability of the terminal blocks. Through this test, problems in the design and manufacturing process can be discovered in a timely manner and corresponding improvements can be made.

[0003] The main purpose of testing the plugging and unplugging force of terminals is to simulate actual use conditions and ensure that the terminals can maintain a stable connection when subjected to normal or unexpected forces. Insertion force refers to the force required to plug the male and female terminals of the connector from a completely separated state to each other, while the extraction force is the minimum force required to separate the male and female terminals of the connected terminals, that is, to pull them out. The setting of these two parameters is usually to meet the consumer's usage habits and ensure the safety of the connection.

[0004] When conducting the plugging and extraction force test of the terminal blocks, special testing equipment is required, such as a terminal plugging and extraction force tester. Many existing terminal plugging and extraction force testers are suitable for testing the plugging and extraction force of a large number of terminals at one time, and the structure is relatively complex and the operation is relatively troublesome. Some manufacturers only perform plugging and extraction force tests on a few or a dozen terminals at a time during the production of terminal blocks, and the number of terminals tested at one time is relatively small. In this case, the existing terminal plugging and extraction force testers with complex structures and troublesome operations are not very suitable, and often take a lot of time to set the test parameters, resulting in low test efficiency.

[0005] In view of the above problems, it is necessary to study and design a terminal insertion and extraction force testing device with simple structure and easy operation. Utility Model Content

[0006] The utility model aims to provide a vertical terminal insertion and extraction force testing machine to solve at least one of the above technical problems.

[0007] According to one aspect of the utility model, a vertical terminal insertion and extraction force testing machine is provided, comprising:

[0008] An upper clamping device for clamping a male or female terminal;

[0009] A lower clamping device for clamping the male terminal or the female terminal, and an upper clamping device is located above the lower clamping device;

[0010] Pull pressure sensor;

[0011] Round rim handwheel, the bottom of the guide rod of the round rim handwheel is connected to the upper clamping device through a tension pressure sensor.

[0012] When the round rim hand wheel is turned, the upper clamping device and the lower clamping device move closer to or farther from each other;

[0013] A controller connected to the tension and pressure sensors; and

[0014] The display is used for displaying the tension signal detected by the tension pressure sensor, and the display is connected with the controller.

[0015] The utility model discloses a vertical terminal plugging and pulling force testing machine. When it is necessary to test the insertion force between the male terminal and the female terminal of the wiring terminal, the male terminal and the female terminal of the wiring terminal are fixed on the upper clamping device and the lower clamping device respectively, the male terminal and the female terminal are aligned, and then the circular rim hand wheel is rotated. The guide rod of the circular rim hand wheel drives the upper clamping device to move in the direction of the lower clamping device through the pulling pressure sensor. The male terminal and the female terminal gradually move from a separated state to being plugged together. During the process of plugging the male terminal and the female terminal together, the pulling pressure sensor detects in real time the pressure of the terminal on the upper clamping device pressing against the terminal on the lower clamping device, that is, the pulling pressure sensor detects in real time the insertion force between the male terminal and the female terminal, and sends the detected insertion force to the display in real time for display. When the male terminal and the female terminal are plugged together, the rotation of the circular rim hand wheel is stopped, and the operator observes the size of the insertion force displayed on the display. As long as the size of the insertion force displayed on the display is the same as the design value or is within a certain deviation range from the design value, the insertion force of the male terminal and the female terminal is qualified. It is necessary to test the male terminal and the female terminal of the wiring terminal. When the pull-out force between the male terminal and the female terminal is detected, the male terminal and the female terminal connected to each other are fixed on the upper clamping device and the lower clamping device respectively, and then the round rim handwheel is turned. The guide rod of the round rim handwheel drives the upper clamping device to move upward to move away from the lower clamping device through the tension pressure sensor. The tension pressure sensor detects the tension applied to the terminal on the upper clamping device in real time, that is, the tension pressure sensor detects the pull-out force between the male terminal and the female terminal in real time, and sends the detected pull-out force to the display in real time for display. When the male terminal and the female terminal are separated, the rotation of the round rim handwheel is stopped. Wheel, the operator observes the pull-out force displayed on the display. As long as the pull-out force displayed on the display is the same as the design value or is within a certain deviation range from the design value, the pull-out force of the male terminal and the female terminal is qualified. The utility model vertical terminal plugging and extraction force testing machine has a simple structure. After the wiring terminals are fixed on the upper clamping device and the lower clamping device, the plugging and extraction force test of the wiring terminals can be completed by rotating the round wheel rim handwheel. The operation is very convenient, and is particularly suitable for application scenarios where only a few or a dozen terminals are subjected to plugging and extraction force tests at a time.

[0016] Preferably, it also includes a base, the lower clamping device is arranged on the base, a frame body is arranged on the base, an internal threaded sleeve is arranged on the upper cross beam of the frame body, and the guide rod of the round wheel rim hand wheel is screwed into the internal threaded sleeve.

[0017] The controller and the display are both arranged on the base.

[0018] Therefore, the upper clamping device, the lower clamping device, the tension and pressure sensor, the round rim handwheel, the controller, and the display are all installed on the base to facilitate the overall movement and transportation of the equipment. When the round rim handwheel is rotated, the round rim handwheel drives its guide rod to rotate synchronously, and the guide rod can move up and down smoothly in the internal threaded sleeve, thereby driving the upper clamping device and the wiring terminals fixed on the upper clamping device to move up and down smoothly.

[0019] Preferably, it further comprises a knob, a strip groove is provided on the guide rod, and the end of the knob can be inserted into the strip groove after passing through the wall of the internal threaded sleeve.

[0020] Therefore, after the test is completed, the knob can be turned so that the end of the knob is inserted into the strip groove on the guide rod. At this time, the round rim handwheel cannot continue to rotate, and the round rim handwheel is locked. Especially during the test process, when it is found that the plugging and unplugging force on the display does not meet the requirements, the round rim handwheel can be locked by turning the knob to ensure that the plugging and unplugging force size that does not meet the requirements displayed on the display will not change, which is convenient for the tester to contact the designer for on-site real-time confirmation.

[0021] Preferably, the tension-compression sensor is an S-shaped tension-compression sensor.

[0022] Therefore, the S-shaped tension and pressure sensor has good accuracy and reliability, is easy to install, flexible to use, and cost-effective. It can provide accurate measurement results within a smaller measuring range. Through reasonable selection, installation and maintenance, it can ensure that it can provide accurate measurement results in a long-term and stable manner.

[0023] Preferably, it further comprises a position adjustment mechanism, the lower clamping device is arranged on the position adjustment mechanism, and the position adjustment mechanism can adjust the position of the lower clamping device in the X direction and the Y direction.

[0024] Therefore, when testing the insertion force of the terminal block, first fix the male terminal and the female terminal on the upper clamping device and the lower clamping device respectively. The male terminal and the female terminal may not be aligned. At this time, the position of the lower clamping device in the X and Y directions can be adjusted by the adjustment mechanism to ensure that the male terminal and the female terminal are aligned, so that the male terminal can be accurately inserted into the female terminal during the test.

[0025] Preferably, the position adjustment mechanism includes a base, a first fixed seat, a first adjustment screw, a first adjustment seat, a second fixed seat, a second adjustment screw and a second adjustment seat.

[0026] The first fixed seat is arranged on the base, the first adjusting seat is slidably arranged on the first fixed seat, the first adjusting screw is rotated on the first fixed seat and simultaneously rotated on the first adjusting seat,

[0027] The second fixed seat is arranged on the first adjustment seat, the second adjustment seat is slidably arranged on the second fixed seat, the second adjustment screw is rotated on the second fixed seat and simultaneously rotated on the second adjustment seat,

[0028] The lower clamping device is arranged on the second adjusting seat.

[0029] Therefore, when it is necessary to adjust the position of the lower clamping device in the X direction, the first adjusting screw on the first fixed seat is rotated, and the first adjusting screw drives the first adjusting seat to move along the X direction on the first fixed seat, and the first adjusting seat will drive the second fixed seat, the second adjusting screw, and the second adjusting seat to move along the X direction as a whole. When it is necessary to adjust the position of the lower clamping device in the Y direction, the second adjusting screw on the second fixed seat is rotated, and the second adjusting screw drives the second adjusting seat to move along the Y direction on the second fixed seat, and the second adjusting seat will drive the lower clamping device to move along the Y direction. The position of the lower clamping device in the X direction and the Y direction can be adjusted by rotating the first adjusting screw and the second adjusting screw, and the adjustment operation is very convenient.

[0030] Preferably, the first fixed seat is provided with a first slide rail, the first adjusting seat is provided with a first slide groove adapted to the first slide rail, the first slide groove is clamped on the first slide rail, the first adjusting seat is provided with a first threaded seat, and the first adjusting screw is screwed in the first threaded seat.

[0031] The second fixed seat is provided with a second slide rail, the second adjusting seat is provided with a second slide groove adapted to the second slide rail, the second slide groove is clamped on the second slide rail, the second adjusting seat is provided with a second threaded seat, and the second adjusting screw is screwed in the second threaded seat.

[0032] Therefore, when the first adjusting screw is rotated, the first adjusting screw can drive the first adjusting seat to move along the X direction on the first fixed seat through the first threaded seat, and the first adjusting seat can move smoothly on the first fixed seat through the sliding cooperation between the first sliding groove and the first sliding rail. When the second adjusting screw is rotated, the second adjusting screw can drive the second adjusting seat to move along the Y direction on the second fixed seat through the second threaded seat, and the second adjusting seat can move smoothly on the second fixed seat through the sliding cooperation between the second sliding groove and the second sliding rail.

[0033] Preferably, the lower clamping device comprises a support seat, a first clamping plate, a second clamping plate, a first boss, a second boss, a first screw and a second screw.

[0034] The support seat is provided with a sliding rail, and the first clamping plate and the second clamping plate are arranged opposite to each other and are both slidably arranged on the sliding rail.

[0035] The first boss and the second boss are respectively arranged at two ends of the support seat, the first screw is rotated on the first boss and the end of the first screw is arranged on the first clamping plate, and the second screw is rotated on the second boss and the end of the second screw is arranged on the second clamping plate.

[0036] Therefore, when it is necessary to fix the terminal block on the lower clamping device, place the terminal block between the first clamping plate and the second clamping plate, and then rotate the first screw and the second screw respectively. The first screw will drive the first clamping plate to move toward the second clamping plate, and the second screw will drive the second clamping plate to move toward the first clamping plate. The first clamping plate and the second clamping plate will finally clamp the terminal block. The terminal block can be fixed on the lower clamping device by simply rotating the first screw and the second screw. The fixing operation of the terminal block is very convenient.

[0037] Preferably, a first anti-slip stripe is provided on the end surface of the first clamping plate facing the second clamping plate, and a second anti-slip stripe is provided on the end surface of the second clamping plate facing the first clamping plate.

[0038] Therefore, when the first clamping plate and the second clamping plate clamp the terminal, the two sides of the terminal respectively rest against the first anti-slip stripes and the second anti-slip stripes. The first anti-slip stripes and the second anti-slip stripes can increase the friction between the first clamping plate, the second clamping plate and the terminal, ensuring that the terminal will not detach from the lower clamping device when plugging and unplugging.

[0039] Preferably, the structure of the upper clamping device is the same as that of the lower clamping device.

[0040] Therefore, the way in which the upper clamping device fixes the wiring terminal is the same as the way in which the lower clamping device fixes the wiring terminal, and the fixing operation of the upper clamping device on the wiring terminal is also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of a vertical terminal insertion and extraction force testing machine of the utility model;

[0042] Figure 2 for Figure 1 The structural schematic diagram of the position adjustment mechanism in the vertical terminal insertion and extraction force testing machine shown;

[0043] Figure 3 for Figure 2 The schematic diagram of the split structure of the position adjustment mechanism shown;

[0044] Figure 4 for Figure 1 The schematic diagram of the structure of the lower clamping device in the vertical terminal insertion and extraction force testing machine is shown. DETAILED DESCRIPTION

[0045] 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 of the embodiments.

[0046] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, unless otherwise specified, "multiple" means two or more; it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements.

[0047] Figures 1 to 4 The structure of a vertical terminal insertion and extraction force testing machine according to one embodiment of the utility model is schematically shown.

[0048] See also Figures 1 to 4 A vertical terminal plugging and pulling force testing machine includes an upper clamping device 1, a lower clamping device 2, a tension pressure sensor 3, a round rim handwheel 4, a controller 5, a display 6, a base 7, a knob 8 and a position adjustment mechanism 9.

[0049] See also Figure 1 A frame is installed on the base 7, and the frame includes an upper crossbeam portion 71, a lower crossbeam portion 74 and two longitudinally arranged columns 73. The bottoms of the two columns 73 are fixed to the top of the base 7, the two ends of the upper crossbeam portion 71 are respectively fixed to the two columns 73, and the two ends of the lower crossbeam portion 74 are respectively fixed to the two columns 73. The upper crossbeam portion 71, the lower crossbeam portion 74 and the two longitudinally arranged columns 73 are arranged in a square.

[0050] See also Figure 1 The upper clamping device 1 is used to clamp the male terminal or the female terminal of the wiring terminal, and the lower clamping device 2 is used to clamp the male terminal or the female terminal of the wiring terminal. The lower clamping device 2 is fixed to the lower cross beam portion 74 of the frame through a position adjustment mechanism 9.

[0051] See also Figure 1An internally threaded sleeve 72 is installed on the upper crossbeam portion 71 of the frame, and the guide rod 41 of the circular rim handwheel 4 is screwed into the internally threaded sleeve 72. The guide rod 41 of the circular rim handwheel 4 is threadedly connected to the internally threaded sleeve 72, and the bottom of the guide rod 41 of the circular rim handwheel 4 extends out from the bottom of the internally threaded sleeve 72. The top of the tension and pressure sensor 3 is fixed to the bottom of the guide rod 41 of the circular rim handwheel 4, and the upper clamping device 1 is fixed to the bottom of the tension and pressure sensor 3. The upper clamping device 1 is located above the lower clamping device 2. When the handle 42 of the circular rim handwheel 4 is rotated, the upper clamping device 1 can move toward the lower clamping device 2 or move upward away from the lower clamping device 2, that is, when the handle 42 of the circular rim handwheel 4 is rotated, the upper clamping device 1 and the lower clamping device 2 can be close to or away from each other to realize the plugging or pulling of the male and female terminals of the terminal blocks.

[0052] See also Figure 1 , the tension pressure sensor 3 uses an S-shaped tension pressure sensor. The S-shaped tension pressure sensor has good accuracy and reliability, is easy to install, flexible to use, and cost-effective. It can provide accurate measurement results within a smaller measuring range. Through reasonable selection, installation and maintenance, it can ensure that it can provide accurate measurement results in a long-term and stable manner.

[0053] See also Figure 1 The guide rod 41 of the round wheel rim handwheel 4 is formed with a strip groove 411, and the strip groove 411 extends upward from the bottom of the guide rod 41 along the length direction of the guide rod 41 for a distance, and the upper cross beam portion 71 of the frame is formed with a threaded hole, and the knob 8 is screwed into the threaded hole on the upper cross beam portion 71, and the end of the knob 8 can pass through the threaded hole and the wall of the internal threaded sleeve 72 and then be inserted into the strip groove 411 on the guide rod 41. After the test is completed, the knob 8 can be rotated so that the end of the knob 8 is inserted into the strip groove 411 on the guide rod 41. At this time, the round wheel rim handwheel 4 cannot continue to rotate, and the locking of the round wheel rim handwheel 4 is completed. During the test, if it is found that the plug-in and pull-out force on the display 6 does not meet the requirements, the round wheel rim handwheel 4 can be locked by rotating the knob 8 to ensure that the plug-in and pull-out force that does not meet the requirements displayed on the display 6 will not change, which is convenient for the tester to contact the designer for on-site real-time confirmation.

[0054] See also Figure 1 The position adjustment mechanism 9 is installed on the lower cross beam portion 74 of the frame, and the lower clamping device 2 is fixed on the position adjustment mechanism 9. The position adjustment mechanism 9 can adjust the position of the lower clamping device 2 in the X direction and the Y direction.

[0055] Specifically, see Figure 2 and Figure 3The position adjustment mechanism 9 includes a base 91, a first fixed base 92, a first adjustment screw 93, a first adjustment base 94, a second fixed base 95, a second adjustment screw 96 and a second adjustment base 97. The base 91 is mounted on the lower cross beam 74 of the frame, and the first fixed base 92 is fixed on the base 91; see Figure 3 , a first slide rail 921 is installed or integrally formed on the first fixed seat 92, and the number of the first slide rails 921 is two, and the two first slide rails 921 are arranged in parallel and are respectively located on both sides of the first fixed seat 92, and a first slide groove 941 adapted to the two first slide rails 921 is formed at the bottom of the first adjustment seat 94, and the first slide groove 941 can be in the shape of a dovetail groove, and the two first slide rails 921 are clamped in the first slide groove 941, that is, the first slide groove 941 in the shape of a dovetail groove is clamped on the two first slide rails 921, and the first adjustment seat 94 can slide smoothly on the first fixed seat 92 through the cooperation of the first slide groove 941 and the two first slide rails 921, and a first threaded seat 942 is installed at the bottom of the first adjustment seat 94, and the first threaded seat 942 is located in the first slide groove 941, and the first adjusting screw 93 is inserted and rotated on the first fixed seat 92, and the first adjusting screw 93 is rotated in the first threaded seat 942 at the bottom of the first adjustment seat 94, see Figure 2 , rotate the first adjusting screw 93 on the first fixed seat 92, the first adjusting screw 93 can drive the first adjusting seat 94 to move along the X direction on the first fixed seat 92, and the first adjusting seat 94 will drive the second fixed seat 95, the second adjusting screw 96, and the second adjusting seat 97 to move along the X direction as a whole; refer to Figure 3 A second slide rail 951 is installed or integrally formed on the second fixing seat 95. The number of the second slide rails 951 is two. The two second slide rails 951 are arranged in parallel and are respectively located on both sides of the second fixing seat 95. A second slide groove 971 adapted to the two second slide rails 951 is formed at the bottom of the second adjustment seat 97. The second slide groove 971 may be in the shape of a dovetail groove. The two second slide rails 951 are clamped in the second slide groove 971, that is, the second slide groove 971 in the dovetail groove style is clamped in the two second slide rails 95 1, the second adjustment seat 97 can slide smoothly on the second fixed seat 95 through the cooperation of the second slide groove 971 and the two second slide rails 951, the second adjustment seat 97 is installed at the bottom of the second adjustment seat 97 with a second threaded seat 972, the second threaded seat 972 is located in the second slide groove 971, the second adjustment screw 96 is inserted and rotated on the second fixed seat 95, and the second adjustment screw 96 is rotated in the second threaded seat 972 at the bottom of the second adjustment seat 97, and the lower clamping device 2 is fixed on the second adjustment seat 97, see Figure 2, rotate the second adjusting screw 96 on the second fixed seat 95, the second adjusting screw 96 can drive the second adjusting seat 97 to move along the Y direction on the second fixed seat 95, and the second adjusting seat 97 will drive the lower clamping device 2 to move along the Y direction on the second fixed seat 95; the first fixed seat 92, the first adjusting seat 94, the second fixed seat 95, and the second adjusting seat 97 can be fixed together by bolts.

[0056] See also Figure 1 and Figure 4 The lower clamping device 2 includes a support seat 21, a first clamping plate 22, a second clamping plate 23, a first boss 24, a second boss 25, a first screw 26 and a second screw 27. The support seat 21 is installed on the second adjustment seat 97; see Figure 4 A sliding rail 211 is installed or integrally formed on the support seat 21, and the bottom of the first clamping plate 22 and the second clamping plate 23 are both formed with a dovetail groove-shaped clamping groove, and the sliding rail 211 is clamped in the clamping groove at the bottom of the first clamping plate 22 and the second clamping plate 23, that is, the dovetail groove-shaped clamping groove at the bottom of the first clamping plate 22 and the dovetail groove-shaped clamping groove at the bottom of the second clamping plate 23 are both clamped on the sliding rail 211, and the first clamping plate 22 and the second clamping plate 23 can slide smoothly on the support seat 21 through the cooperation of the dovetail groove-shaped clamping groove and the sliding rail 211, the first clamping plate 22 and the second clamping plate 23 are arranged relatively to each other, the first boss 24 and the second boss 25 are respectively fixed at both ends of the support seat 21, the first screw 26 is inserted and rotated on the first boss 24, and the first screw The end of the rod 26 is fixed on the first clamping plate 22, the second screw 27 is inserted and rotated on the second boss 25, and the end of the second screw 27 is fixed on the second clamping plate 23; when the terminal needs to be fixed on the lower clamping device 2, the terminal is placed between the first clamping plate 22 and the second clamping plate 23, and then the first screw 26 and the second screw 27 are rotated respectively. The first screw 26 will drive the first clamping plate 22 to move toward the second clamping plate 23, and the second screw 27 will drive the second clamping plate 23 to move toward the first clamping plate 22. The first clamping plate 22 and the second clamping plate 23 can finally clamp the terminal. The terminal can be fixed on the lower clamping device 2 by simply rotating the first screw 26 and the second screw 27. The fixing operation of the terminal is very convenient.

[0057] See also Figure 4A first anti-slip stripe 221 is formed on the end surface of the first clamping plate 22 facing the second clamping plate 23, and a second anti-slip stripe 231 is formed on the end surface of the second clamping plate 23 facing the first clamping plate 22. When the first clamping plate 22 and the second clamping plate 23 clamp the wiring terminal, the two sides of the wiring terminal respectively abut against the first anti-slip stripe 221 and the second anti-slip stripe 231. The first anti-slip stripe 221 and the second anti-slip stripe 231 can increase the friction between the first clamping plate 22, the second clamping plate 23 and the wiring terminal, ensuring that the wiring terminal will not detach from the lower clamping device 2 when plugging and unplugging.

[0058] See also Figure 1 The structure of the upper clamping device 1 is the same as that of the lower clamping device 2. The upper clamping device 1 can be obtained by flipping the lower clamping device 2 180 degrees. The support seat of the upper clamping device 1 is fixed on the bottom of the tension and pressure sensor 3.

[0059] See also Figure 1 The controller 5 is installed on the base 1. The controller 5 can be a microcontroller chip or a single-chip microcomputer. The tension and pressure sensor 3 is connected to the controller 5 through a cable. The display 6 is installed on the base 1. The display 6 is connected to the controller 5 through a cable. The tension and pressure sensor 3 can send the real-time detected tension or pressure signal to the controller 5. The controller 5 can send the tension or pressure signal detected by the tension and pressure sensor 3 to the display 6 for real-time display.

[0060] See also Figure 1, the vertical terminal insertion and extraction force testing machine of the utility model, when it is necessary to test the insertion force between the male terminal and the female terminal of the wiring terminal, the male terminal and the female terminal of the wiring terminal are fixed on the upper clamping device 1 and the lower clamping device 2 respectively, and the first screw 26 and the second screw 27 on the lower clamping device 2 can be rotated to fix the wiring terminal (such as the female terminal) on the lower clamping device 2. The wiring terminal (such as the male terminal) can be fixed on the upper clamping device 1 in the same way. The male terminal and the female terminal of the wiring terminal may not be aligned. At this time, the first adjusting screw 93 can be rotated to adjust the position of the lower clamping device 2 in the X direction, and the second adjusting screw 96 can be rotated to adjust the position of the lower clamping device 2 in the Y direction. Finally, the wiring terminal (such as the female terminal) fixed on the lower clamping device 2 is aligned with the wiring terminal (such as the male terminal) fixed on the upper clamping device 1, so that the male terminal can be accurately inserted into the female terminal during the test, and then The handle 42 of the circular rim handwheel 4 is turned, and the guide rod 41 of the circular rim handwheel 4 drives the upper clamping device 1 to move toward the lower clamping device 2 through the pulling pressure sensor 3, and the male terminal and the female terminal gradually move from a separated state to being plugged together. During the plugging process of the male terminal and the female terminal, the pulling pressure sensor 3 detects in real time the pressure of the wiring terminal (such as the male terminal) on the upper clamping device 1 against the wiring terminal (such as the female terminal) on the lower clamping device 2, that is, the pulling pressure sensor 3 can detect in real time the insertion force between the male terminal and the female terminal, and send the detected insertion force to the display 6 in real time through the controller 5 for display. When the male terminal and the female terminal are plugged together, stop rotating the circular rim handwheel 4, and the operator observes the insertion force displayed on the display 6. As long as the insertion force displayed on the display 6 is the same as the design value or within a certain deviation range from the design value, the insertion force of the male terminal and the female terminal is qualified.When it is necessary to test the pull-out force between the male terminal and the female terminal of the terminal block, the male terminal and the female terminal that are plugged together are fixed on the upper clamping device 1 and the lower clamping device 2 respectively according to the same method as mentioned above, and then the handle 42 of the circular rim handwheel 4 is turned, and the guide rod 41 of the circular rim handwheel 4 drives the upper clamping device 1 to move upward to move away from the lower clamping device 2 through the tension pressure sensor 3. The tension pressure sensor 3 detects the tension applied to the terminal on the upper clamping device 1 in real time, that is, the tension pressure sensor 3 detects the pull-out force between the male terminal and the female terminal in real time, and sends the detected pull-out force to the display 6 through the controller 5 for display in real time. When the male terminal and the female terminal are separated, stop rotating the circular rim handwheel 4, and the operator observes the pull-out force displayed on the display 6. As long as the display If the pull-out force displayed on the display 6 is the same as the design value or within a certain deviation range from the design value, the pull-out force of the male terminal and the female terminal is qualified. In addition, during the test, when it is found that the plug-in force on the display 6 does not meet the requirements, the round wheel rim handwheel 4 can be locked by turning the knob 8 to ensure that the plug-in force displayed on the display 6 that does not meet the requirements will not change, which is convenient for the tester to contact the designer for on-site real-time confirmation. The vertical terminal plug-in force tester of the utility model has a simple structure. After the wiring terminal is fixed on the upper clamping device 1 and the lower clamping device 2, the plug-in force test of the wiring terminal can be completed by turning the round wheel rim handwheel 4. It is very convenient to operate and is particularly suitable for application scenarios where only a few or a dozen terminals are tested for plug-in force at a time. ;

[0061] The above are only some embodiments of the present invention, which are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art can make obvious improvements to the present invention in combination with existing common knowledge, which all fall within the protection scope of the present invention.

Claims

1. A vertical terminal insertion and extraction force testing machine, characterized in that: include: An upper clamping device for clamping a male or female terminal; A lower clamping device for clamping the male terminal or the female terminal, and an upper clamping device is located above the lower clamping device; Pull pressure sensor; A circular rim handwheel, wherein the bottom of the guide rod of the circular rim handwheel is connected to the upper clamping device through a tension pressure sensor, When the round rim hand wheel is turned, the upper clamping device and the lower clamping device move closer to or farther from each other; A controller connected to the tension and pressure sensor; and A display for displaying the tension or pressure signal detected by the tension or pressure sensor, wherein the display is connected to the controller.

2. The vertical terminal insertion and extraction force testing machine according to claim 1, characterized in that: It also includes a base, the lower clamping device is arranged on the base, a frame body is arranged on the base, an internal threaded sleeve is arranged on the upper cross beam of the frame body, and a guide rod of the round wheel rim hand wheel is rotated in the internal threaded sleeve. The controller and the display are both arranged on the base.

3. The vertical terminal insertion and extraction force testing machine according to claim 2, characterized in that: It also comprises a knob, the guide rod is provided with a strip groove, and the end of the knob can be inserted into the strip groove after passing through the wall of the internal threaded sleeve.

4. The vertical terminal insertion and extraction force testing machine according to claim 1, characterized in that: The tension and pressure sensor is an S-shaped tension and pressure sensor.

5. The vertical terminal insertion and extraction force testing machine according to any one of claims 1 to 4, characterized in that: It also includes a position adjustment mechanism, the lower clamping device is arranged on the position adjustment mechanism, and the position adjustment mechanism can adjust the position of the lower clamping device in the X direction and the Y direction.

6. The vertical terminal insertion and extraction force testing machine according to claim 5, characterized in that: The position adjustment mechanism includes a base, a first fixed seat, a first adjustment screw, a first adjustment seat, a second fixed seat, a second adjustment screw and a second adjustment seat. The first fixing seat is arranged on the base, the first adjusting seat is slidably arranged on the first fixing seat, the first adjusting screw is rotated on the first fixing seat and simultaneously rotated on the first adjusting seat, The second fixing seat is arranged on the first adjusting seat, the second adjusting seat is slidably arranged on the second fixing seat, the second adjusting screw is rotated on the second fixing seat and simultaneously rotated on the second adjusting seat, The lower clamping device is arranged on the second adjusting seat.

7. The vertical terminal insertion and extraction force testing machine according to claim 6, characterized in that: The first fixed seat is provided with a first slide rail, the first adjusting seat is provided with a first slide groove adapted to the first slide rail, the first slide groove is clamped on the first slide rail, the first adjusting seat is provided with a first threaded seat, and the first adjusting screw is screwed in the first threaded seat. The second fixed seat is provided with a second slide rail, the second adjusting seat is provided with a second slide groove adapted to the second slide rail, the second slide groove is clamped on the second slide rail, the second adjusting seat is provided with a second threaded seat, and the second adjusting screw is screwed in the second threaded seat.

8. The vertical terminal insertion and extraction force testing machine according to any one of claims 1 to 4, characterized in that: The lower clamping device includes a support seat, a first clamping plate, a second clamping plate, a first boss, a second boss, a first screw and a second screw. The support seat is provided with a sliding rail, and the first clamping plate and the second clamping plate are arranged opposite to each other and are both slidably arranged on the sliding rail. The first boss and the second boss are respectively arranged at two ends of the support seat, the first screw is rotated on the first boss and the end of the first screw is arranged on the first clamping plate, and the second screw is rotated on the second boss and the end of the second screw is arranged on the second clamping plate.

9. The vertical terminal insertion and extraction force testing machine according to claim 8, characterized in that: The end surface of the first clamping plate facing the second clamping plate is provided with a first anti-slip stripe, and the end surface of the second clamping plate facing the first clamping plate is provided with a second anti-slip stripe.

10. The vertical terminal insertion and extraction force testing machine according to claim 8, characterized in that: The structure of the upper clamping device is the same as that of the lower clamping device.

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