A terminal detection apparatus and method

Abstract

The application discloses a terminal detection device and method, relates to the technical field of terminal detection, and comprises a test box, a mounting plate is arranged in the test box, a plurality of test mechanisms for clamping terminals are detachably arranged on the top wall of the mounting plate, the test mechanism comprises a bearing seat, an installation cavity with an opening upward is arranged on the top of the end away from the rotating shaft of the bearing seat, a trigger piece for placing a tubular terminal is vertically and slidably arranged in the installation cavity, and a supporting piece for placing a connecting end of a circular terminal is detachably arranged above the trigger piece in the installation cavity. By arranging the installation cavity to simultaneously bear the detachable supporting piece and the trigger piece, the device can clamp and limit the circular terminal and the tubular terminal by only using different contact modes with the contact column without replacing the main bearing structure, the defect that the existing detection equipment needs to replace a complete set of clamps for different terminals is overcome, and one machine is used for multiple purposes.

Description

Technical Field

[0001] This invention relates to the field of terminal testing technology, and more specifically, to a terminal testing device and method. Background Technology

[0002] Terminal blocks are core connection components in electrical equipment, wiring harness systems, new energy, rail transportation, and smart home appliances. They are mainly used to achieve conductive connections and fixed assembly between wires and electrical components. Their connection stability, conductivity, and high-temperature reliability directly determine the operational safety and service life of the entire electrical system. Based on structural differences, terminals are mainly divided into round terminals (OT type), fork-shaped terminals (UT type), and tubular terminals (VE type), with round and tubular terminals being the most commonly used. Because different terminal structures have significantly different assembly adaptation structures, stress methods, and conductive conditions, high requirements are placed on the compatibility, limit accuracy, and realism of the simulation of operating conditions of testing equipment.

[0003] Currently, most terminal testing equipment in the industry has a simple structure and poor versatility. It cannot simultaneously adapt to the performance testing of round and tubular terminals. It can usually only perform specialized testing on a single type of terminal. Enterprises need to equip themselves with multiple different testing devices to complete the quality inspection of both types of terminals. This results in high equipment investment costs, large space occupation, and cumbersome testing processes with low testing efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a terminal detection device and method.

[0005] The technical solution is as follows: A terminal testing device includes a test box, an installation plate installed inside the test box, and multiple testing mechanisms for clamping terminals detachably installed on the top wall of the installation plate. Each testing mechanism includes a support base, and an upward-opening mounting cavity is formed at the top of the end of the support base away from the rotating shaft. A trigger for placing a tubular terminal is slidably installed in the mounting cavity along the vertical direction. The mounting cavity is located above the trigger. A support for placing a circular terminal connection end is detachably installed. A first through groove communicating with the mounting cavity is formed in the middle of the top wall of the support. The bearing seat has a rotating shaft at one end, on which a clamping arm is rotatably mounted. An insulating mounting block is slidably mounted on the clamping arm. A contact post is detachably mounted on the bottom of the insulating mounting block. A pressure plate is located on the top wall of the contact post. A torsion spring is mounted on the rotating shaft. The torsion spring is used to press the clamping arm towards the bearing seat, so as to achieve the limiting of the circular terminal by the cooperation of the pressure plate and the support member, or the limiting of the tubular terminal by the contact post through the first through groove and the cooperation of the trigger member.

[0006] Furthermore, the outer wall of the support seat has an installation port that communicates with the mounting cavity. First electrode plates are installed on both sides of the inner wall of the installation port, and a first conductive plate is installed on the bottom wall of the installation port. The bottom wall of the support seat has a first insertion interface and a second insertion interface. A second electrode plate and a third electrode plate are installed in the first insertion interface and the second insertion interface, respectively. The third electrode plate is connected to the first electrode plate and to the first conductive plate through a third wire. A contact plate is installed in the middle of the bottom wall of the support seat, and a fourth wire is connected between the contact plate and the second electrode plate.

[0007] Furthermore, it also includes a power supply device for energizing the terminals. The power supply device has a positive clamp and a negative clamp. A connection line for multiple test mechanisms connected in series is installed on the mounting plate. The connection line includes a positive contact for cooperating with the positive clamp, a negative contact for cooperating with the negative clamp, and a first wire and a second wire for cooperating with the first and second plug interfaces on the test mechanism. The positive contact and the negative contact are respectively used to cooperate with the first or second plug interface on the test mechanism at the beginning and end positions.

[0008] Furthermore, a groove is provided at the bottom wall of the mounting cavity, and multiple second springs are installed between the bottom wall of the groove and the bottom wall of the trigger element. The second springs are used to provide elastic force to keep the trigger element pressed upward.

[0009] Furthermore, a mounting groove is provided in the middle of the top wall of the trigger, and a through-hole that mates with the contact plate is provided in the bottom wall of the mounting groove. A connector is detachably installed in the mounting groove, and a second through-groove is provided in the top wall of the connector. An arc-shaped mounting seat that mates with the outer wall of the tubular terminal is slidably installed in the second through-groove. A first spring is installed between the bottom wall of the arc-shaped mounting seat and the bottom wall of the second through-groove. The first spring is used to provide elastic force to keep the arc-shaped mounting seat pressed upward.

[0010] Furthermore, both sides of the inner wall of the first through groove have protrusions that mate with the outer wall of the circular terminal wiring end, and the middle of each protrusion has a second conductive plate that mates with the first electrode plates on both sides of the inner wall of the mounting port.

[0011] Furthermore, a groove for sliding the insulating mounting block is provided on the top wall of the clamping arm along its length, and an movable opening communicating with the groove is provided on the side wall of the clamping arm. A sliding block is slidably installed in the movable opening, and a fastening bolt threaded to the side wall of the insulating mounting block is rotatably installed on the side wall of the sliding block. The fastening bolt is used to limit the position of the insulating mounting block.

[0012] Furthermore, the bottom wall of the contact post has an arc-shaped groove, which is used to limit the position of the tubular terminal in conjunction with the arc-shaped mounting base.

[0013] Furthermore, it also includes a recorder and a cover plate that is rotatably mounted on one side of the test chamber. The recorder has multiple detection probes corresponding to the multiple test mechanisms, and the detection probes are used to detect the terminal temperature.

[0014] A detection method for a terminal detection device includes the following steps: S1. The operator opens the cover, installs multiple test mechanisms into the connection line on the mounting plate and connects them in series, and connects the positive and negative clamps on the power supply device to the corresponding positive and negative contacts respectively. S2. Press the clamping arm to rotate the insulating mounting block on the clamping arm upwards to disengage it from the trigger element. Replace the contact post on the insulating mounting block according to the round hole of the circular terminal connection end to be tested. S3. Place the connection end and wiring end of the circular terminal to be tested on the support and the protrusion respectively. Then slowly release the pressure on the clamping arm so that the insulating mounting block on the clamping arm slowly goes down and passes through the round hole on the connection end of the circular terminal. Press the trigger down again until it contacts the contact plate. The second conductive plate and the contact plate form an electrical path. Install the remaining circular terminals in this way. S4. After the circular terminal clamping and limiting is completed, install multiple detection probes on the recorder onto the corresponding multiple circular terminals. Then close the cover and control the power supply device to power on the circular terminals on the multiple test mechanisms to simulate their actual use. The detection probes monitor and acquire their performance parameters in real time and send them to the recorder for recording.

[0015] Based on the above description, the beneficial effects of the terminal detection device and method of the present invention are as follows: The contact post is made of conductive metal, serving both as a clamping and limiting structure to fix the terminal and as a conductive medium to participate in the detection circuit conduction. Simultaneously, the layered sliding structure of the support and trigger provides dedicated installation positions for two different types of terminals. The first through slot can meet the vertical penetration requirements of the contact post, adapting to the vertical clamping and conduction conditions of tubular terminals. The top surface of the support can mate with the pressure plate on the contact post to accommodate the flat placement and clamping of round terminals, achieving compatible testing of both round and tubular terminals. Compared with existing technologies, by setting the mounting cavity to simultaneously support the detachable support and trigger, this device can achieve clamping and limiting of round and tubular terminals without changing the main support structure, simply by utilizing different contact methods with the contact post. This overcomes the shortcomings of existing testing equipment that require replacing the entire set of fixtures for different terminals, achieving multi-purpose functionality.

[0016] This invention constructs a dual electrical path for both circular and tubular terminals, ensuring that both types of terminals can form a reliable electrical circuit with the power supply device under different clamping methods. It can automatically adapt to the conductivity detection requirements of the two types of terminals without manual modification of the wiring method. At the same time, the modular electrode interface design is suitable for large-volume, multi-station synchronous quality inspection operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall components of the present invention; Figure 2 This is a schematic diagram of the internal structure of the test chamber of the present invention; Figure 3 This is a schematic diagram showing the connection between the connection lines and the testing mechanism of the present invention; Figure 4 This is a schematic diagram of the mounting plate and connecting lines of the present invention; Figure 5 This is a schematic diagram of the testing mechanism of the present invention; Figure 6 This is a cross-sectional schematic diagram of the testing mechanism of the present invention; Figure 7 This is a cross-sectional view of the clamping arm of the present invention after it has been opened; Figure 8 This is a schematic diagram of the internal structure of the mounting cavity of the present invention; Figure 9 This is a schematic diagram showing the connection between the insulating mounting block and the contact post of the present invention; Figure 10 This is an exploded view of the trigger, support, and bearing seat of the present invention; Figure 11 This is a schematic diagram of the support component of the present invention; Figure 12 This is a schematic diagram of the explosion of the trigger element of the present invention; Figure 13 This is a schematic diagram of the contact plate structure of the present invention.

[0018] The reference numerals in the appendix of this invention are as follows: 100. Test box; 110. Cover plate; 120. Mounting plate; 121. Connecting lines; 1211. Positive contact; 1212. First wire; 1213. Second wire; 1214. Negative contact; 200. Test mechanism; 210. Support; 211. Mounting cavity; 2111. Mounting port; 2112. Groove; 212. First insertion interface; 213. Second insertion interface; 214. First conductive plate; 215. Second conductive plate; 216. Third wire; 217. Fourth wire; 220. Clamping arm; 22 1. Slide groove; 222. Movable opening; 230. Insulating mounting block; 231. Contact post; 2311. Pressure plate; 232. Sliding block; 233. Fastening bolt; 240. Torsion spring; 250. Support; 251. First through groove; 252. Protrusion; 260. Trigger; 261. Mounting groove; 262. Through opening; 263. Connector; 264. Second through groove; 265. Arc-shaped mounting base; 266. First spring; 270. Contact plate; 280. Second spring; 300. Power supply device; 400. Recorder. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The embodiments provided by the present invention will be described in detail below: Example 1

[0021] like Figures 1 to 13 As shown, a terminal testing device includes a test box 100, a mounting plate 120 installed inside the test box 100, and a plurality of test mechanisms 200 for clamping terminals detachably installed on the top wall of the mounting plate 120. The test mechanism 200 includes a support 210, and a mounting cavity 211 with an upward opening is opened at the top of the end of the support 210 away from the rotating shaft. A trigger member 260 for placing a tubular terminal is slidably installed in the mounting cavity 211 along the vertical direction. The circular terminal has a connecting end and a wiring end. The mounting cavity 211 is located above the trigger member 260. A support member 250 for placing the connecting end of the circular terminal is detachably installed. A first through groove 251 communicating with the mounting cavity 211 is opened in the middle of the top wall of the support member 250. The bearing seat 210 has a rotating shaft at one end, on which a clamping arm 220 is rotatably mounted. An insulating mounting block 230 is slidably mounted on the clamping arm 220. A contact post 231 is detachably mounted at the bottom of the insulating mounting block 230. A pressure plate portion 2311 is located on the top wall of the contact post 231. A torsion spring 240 is mounted on the rotating shaft. The torsion spring 240 is used to press the clamping arm 220 toward the bearing seat 210, so that the pressure plate portion 2311 cooperates with the support member 250 to limit the circular terminal, or the contact post 231 passes through the first through groove 251 and cooperates with the trigger member 260 to limit the tubular terminal. The contact post 231 is made of conductive metal, while the support member 250 and the trigger member 260 are both made of insulating material.

[0022] It should be noted that the contact post 231 is made of conductive metal, which can serve as both a clamping and limiting structure to fix the terminal and a conductive medium to participate in the detection circuit conduction. At the same time, the layered sliding structure of the support 250 and the trigger 260 provides dedicated installation positions for two different types of terminals. The first through slot 251 can meet the vertical penetration requirements of the contact post 231 and is suitable for the vertical clamping and conduction of tubular terminals. The top surface of the support 250 can be matched with the pressure plate 2311 on the contact post 231 to accommodate the flat placement and clamping of round terminals, realizing the compatibility and adaptation detection of round terminals and tubular terminals. Compared with the prior art, by setting the mounting cavity 211 to simultaneously support the detachable support 250 and the trigger 260, this device can achieve clamping and limiting of round terminals and tubular terminals by using only different contact methods with the contact post 231 without changing the main support structure. This overcomes the defect of existing detection equipment that requires changing the entire set of fixtures for different terminals and realizes multi-purpose functionality.

[0023] Understandably, the elastic clamping structure of the torsion spring 240 enables the clamping arm 220 to automatically reset and clamp, eliminating the need for continuous manual pressure and simplifying the terminal clamping process.

[0024] like Figures 5 to 7 As shown, the outer wall of the support 210 has an installation port 2111 that communicates with the mounting cavity 211. First electrode plates are installed on both sides of the inner wall of the installation port 2111. A first conductive plate 214 is installed at the bottom wall of the installation port 2111. A first insertion interface 212 and a second insertion interface 213 are provided at the bottom wall of the support 210. A second electrode plate and a third electrode plate are installed in the first insertion interface 212 and the second insertion interface 213, respectively. The third electrode plate is connected to the first electrode plate and to the first conductive plate 214 through a third wire 216. A contact plate 270 is installed in the middle of the bottom wall of the support 210. A fourth wire 217 is connected between the contact plate 270 and the second electrode plate.

[0025] Both sides of the inner wall of the first through groove 251 have protrusions 252 that mate with the outer wall of the circular terminal wiring end. The middle of each protrusion 252 has a second conductive plate 215 that mates with the first electrode pieces on both sides of the inner wall of the mounting port 2111. Through the integrated structure of the protrusions 252 and the second conductive plate 215, the first electrode pieces and the second conductive plate 215 can conduct electricity stably, thereby supporting the circular terminal wiring end while achieving circuit connection through the circular terminal.

[0026] It should be noted that, through the modular circuit layout of multiple electrode plates and dedicated wires, an independent conductive circuit system adaptable to two types of terminals is constructed. The first connector 212 and the second connector 213 serve as external docking ports, which can quickly connect to the connection line 121 on the mounting plate 120, realizing the rapid series networking of multiple test mechanisms 200. The third wire 216 connects the third electrode plate to the first conductive plate 214, and the fourth wire 217 connects the second electrode plate to the contact plate 270, corresponding to the circuit conduction path adapted to the detection of tubular terminals. The third wire 216 connects to the third electrode plate to the first conductive plate 214. The electrode sheet and the first electrode sheet are connected. The first electrode sheet is connected to the second conductive plate 215 and the fourth wire 217 is connected to the second electrode sheet, the contact plate 270 and the contact post 231. The circuit conduction path is adapted to the detection of circular terminals. This invention constructs a dual electrical path for circular terminals and tubular terminals, ensuring that the two types of terminals can form a reliable electrical circuit with the power supply device 300 under different clamping methods. It can automatically adapt to the conductivity detection requirements of the two types of terminals without manual changes to the wiring method. At the same time, the modular electrode interface design is adapted to large-volume, multi-station synchronous quality inspection operations.

[0027] like Figures 1 to 4 As shown, the terminal testing device also includes a power supply device 300 for energizing the terminals. The power supply device 300 has a positive clamp and a negative clamp. A connection line 121 for connecting multiple test mechanisms 200 in series is installed on the mounting plate 120. The connection line 121 includes a positive contact 1211 for cooperating with the positive clamp, a negative contact 1214 for cooperating with the negative clamp, and a first wire 1212 and a second wire 1213 for cooperating with the first plug-in interface 212 and the second plug-in interface 213 on the test mechanism 200. The positive contact 1211 and the negative contact 1214 are respectively used to cooperate with the first plug-in interface 212 or the second plug-in interface 213 on the test mechanism 200 at the beginning and end positions.

[0028] It should be noted that the integrated series connection circuit structure enables simultaneous power-on testing of multiple test mechanisms. The connection line 121 connects multiple test mechanisms 200 on the mounting plate 120 in an orderly series. The positive contact 1211 and the negative contact 1214 serve as the main power supply docking point, which can be quickly docked with the positive and negative clamps of the power supply device 300 to complete the power-on configuration of the overall equipment. The first wire 1212 and the second wire 1213 are precisely matched with the two types of plug interfaces of the test mechanism 200 to achieve precise docking between the line and the test mechanism circuit, ensuring stable current transmission.

[0029] As shown in the figure Figure 7 As shown, a groove 2112 is provided at the bottom wall of the mounting cavity 211. A plurality of second springs 280 are installed between the bottom wall of the groove 2112 and the bottom wall of the trigger 260. The second springs 280 are used to provide elastic force to keep the trigger 260 pressed upward.

[0030] It should be noted that the elastic support structure of the second spring 280 enables the adaptive reset and state switching of the trigger 260. When the clamping arm 220 is released to clamp the terminal, the second spring 280 can use its own elastic force to push the trigger 260 upward, so that the trigger 260 is in contact with the support 250 and separated from the contact plate 270, thereby disconnecting the circuit and avoiding arcing during terminal installation. When the clamping arm 220 presses down to clamp the terminal, it can overcome the elastic force of the second spring 280 to drive the trigger 260 downward until it is in contact with the contact plate 270, thus completing the circuit conduction. At the same time, when installing the tubular terminal, since the trigger 260 is pressed upward by the second spring 280 to the support 250, the arc-shaped mounting base 265 and the support 250 will form a preliminary clamping on the tubular terminal installed at the arc-shaped mounting base 265.

[0031] like Figure 12 As shown, a mounting groove 261 is provided in the middle of the top wall of the trigger 260, and a through-hole 262 that mates with the contact plate 270 is provided in the bottom wall of the mounting groove 261. A connector 263 is detachably installed in the mounting groove 261. A second through-groove 264 is provided in the top wall of the connector 263. An arc-shaped mounting seat 265 that mates with the outer wall of the tubular terminal is slidably installed in the second through-groove 264. A first spring 266 is installed between the bottom wall of the arc-shaped mounting seat 265 and the bottom wall of the second through-groove 264. Both the connector 263 and the arc-shaped mounting seat 265 are made of conductive metal. The first spring 266 is used to provide elastic force to keep the arc-shaped mounting seat 265 pressed upward. The top wall of the arc-shaped mounting seat 265 is lower than the top wall of the connector 263.

[0032] The bottom wall of the contact post 231 has an arc-shaped groove, which is used to limit the position of the tubular terminal by cooperating with the arc-shaped mounting base 265.

[0033] It should be noted that the arc-shaped structure of the arc-shaped mounting base 265 can perfectly fit the arc-shaped outer wall of the tubular terminal, and cooperate with the arc-shaped groove at the bottom of the contact post 231 and the arc-shaped mounting base 265 to achieve precise positioning and limiting of the tubular terminal, avoiding terminal offset and shaking during the testing process. The first spring 266 provides an upward adaptive clamping force for the arc-shaped mounting base 265, and can adaptively fine-tune the height according to the specifications and dimensions of the tubular terminal, adapting to the testing of tubular terminals with different hole diameters and pipe diameters. Through the arc-shaped adaptive elastic clamping structure, this invention can adapt to the positioning and testing of tubular terminals of various specifications, greatly expanding the equipment's versatility and eliminating the need for frequent clamp replacements; at the same time, the elastic and flexible clamping method not only ensures clamping stability but also avoids terminal deformation and damage caused by rigid extrusion, achieving non-destructive testing.

[0034] Understandably, the connector 263 and the arc-shaped mounting base 265 are made of conductive metal, which can stably conduct the detection current. The through port 262 ensures that the trigger 260 makes precise contact with the contact plate 270 after it moves down to conduct the circuit. At the same time, the structural design of the top wall of the arc-shaped mounting base 265 being lower than the top wall of the connector 263 facilitates the installation of the terminals.

[0035] like Figures 5 to 7 and Figure 9 As shown, the clamping arm 220 has a groove 221 on its top wall along its length for the insulating mounting block 230 to slide. The clamping arm 220 has a movable opening 222 that communicates with the groove 221 on its side wall. A sliding block 232 is slidably installed in the movable opening 222. A fastening bolt 233 that is threaded to the side wall of the insulating mounting block 230 is rotatably installed on the side wall of the sliding block 232. The fastening bolt 233 is used to limit the position of the insulating mounting block 230.

[0036] It should be noted that the position of the insulating mounting block 230 can be adaptively adjusted and fixed by sliding the mounting block 230 located in the slide groove 221. The slide groove 221 provides the sliding stroke of the insulating mounting block 230 in the length direction. The vertical pressing position of the contact post 231 can be flexibly adjusted according to the size of different terminal specifications and the clamping position requirements. The setting of the movable port 222 cooperating with the sliding block 232 ensures that the adjustment process is smooth and without jamming. After the adjustment is completed, the position of the insulating mounting block 230 can be locked by fastening the bolt 233, which can prevent position displacement during the detection process and ensure clamping accuracy and detection stability.

[0037] like Figure 1 As shown, the terminal testing device also includes a recorder 400 and a cover plate 110 rotatably disposed on one side of the test chamber 100. The recorder 400 has multiple detection probes corresponding to the multiple test mechanisms 200, and the detection probes are used to detect the terminal temperature.

[0038] It should be noted that the closed detection chamber and multi-probe synchronous acquisition structure enable accurate detection of the high-temperature performance of the terminals. The rotatable cover 110 can seal the internal space of the test chamber 100 after the terminals are clamped, forming a sealed detection chamber to avoid interference from external airflow, temperature, dust and other environmental factors, thus simulating the actual sealed working conditions of the terminals. The recorder 400 is equipped with multiple independent detection probes, which correspond one-to-one with multiple test mechanisms 200. They can synchronously and independently collect real-time performance parameters such as temperature, current and voltage of each terminal when it is powered on, and adjust the current magnitude in conjunction with the power supply device 300 to test the performance of the terminals at different temperatures. Example 2

[0039] Based on Embodiment 1, this embodiment provides a detection method for a terminal detection device, including the following steps: S1. The operator opens the cover plate 110, installs multiple test mechanisms 200 into the connection line 121 on the mounting plate 120 for series connection, and connects the positive and negative clamps on the power supply device 300 to the corresponding positive contact 1211 and negative contact 1214 respectively. S2. Press the clamping arm 220 to rotate the insulating mounting block 230 on the clamping arm 220 upward to disengage it from the contact with the trigger 260. Replace the contact post 231 on the insulating mounting block 230 according to the round hole of the circular terminal connection end to be tested. S3. Place the connection end and wiring end of the circular terminal to be tested on the support 250 and the protrusion 252 respectively. Then slowly release the pressure on the clamping arm 220, so that the insulating mounting block 230 on the clamping arm 220 slowly goes down and passes through the circular hole on the connection end of the circular terminal. Press the trigger 260 down again until it contacts the contact plate 270. The second conductive plate 215 and the contact plate 270 form an electrical path. Install the remaining circular terminals in sequence using this step. S4. After the circular terminal clamping limit is completed, install multiple detection probes on the recorder 400 onto the corresponding multiple circular terminals. Then close the cover plate 110 and control the power supply device 300 to power on the circular terminals on the multiple test mechanisms 200 to simulate their actual use. The detection probes monitor and acquire their performance parameters in real time and send them to the recorder 400 for recording.

[0040] It should be noted that this testing method has a simple and orderly procedure, eliminating the need for repeated manual wiring and calibration. It can achieve simultaneous clamping, power-on, and testing of multiple sets of terminals. At the same time, the sealed testing environment combined with a precise all-round limiting clamping method maximizes the reproduction of the actual assembly and operating conditions of the terminals, ensuring the authenticity and accuracy of the test data.

[0041] Specifically, when the terminal to be tested is a round terminal, the operator opens the cover plate 110, installs multiple test mechanisms 200 into the connection line 121 on the mounting plate 120 for series connection, and connects the positive and negative clamps on the power supply device 300 to the corresponding positive contact 1211 and negative contact 1214 respectively. After the above is completed, press the clamping arm 220 to rotate the insulating mounting block 230 on the clamping arm 220 upwards and disengage it from the trigger 260. Replace the contact post 231 on the insulating mounting block 230 according to the circular hole of the circular terminal connection end to be tested. After replacing the contact post 231, place the connection end and wiring end of the circular terminal to be tested onto the support 250 and protrusion 252 respectively. At this time, the trigger 260 is pressed against the support by the elastic force of the second spring 280. 250 is engaged, the trigger 260 and the contact plate 270 are separated, then the pressure on the clamping arm 220 is slowly released, causing the insulating mounting block 230 on the clamping arm 220 to slowly descend and pass through the circular hole on the circular terminal connection end, pressing the trigger 260 down again until it contacts the contact plate 270. At this time, the pressure plate portion 2311 on the contact post 231 and the support member 250 form a clamping and limiting position on the circular terminal, and at the same time, the second conductive plate 215 and the contact plate 270 form an electrical path, as shown in Figure 5 and Figure 6 As shown in the diagram, install the remaining circular terminals in sequence using these steps. When the terminal to be tested is a tubular terminal, the operator presses the clamping arm 220 to rotate the insulating mounting block 230 on the clamping arm 220 upwards, disengaging it from the trigger 260. At this time, the trigger 260 is pressed against the support 250 by the elastic force of the second spring 280, and the trigger 260 is separated from the contact plate 270. The connecting end of the tubular terminal to be tested is installed into the arc-shaped mounting base 265. Since the trigger 260 is pressed upwards by the second spring 280 against the support 250, the arc-shaped mounting base 265 and the support 250 will initially clamp the tubular terminal installed at the arc-shaped mounting base 265. Then, the operator slowly releases the clamping arm 220. The pressure causes the contact post 231 on the clamping arm 220 to slowly descend, passing through the first through groove 251 on the support 250 and pressing against the top wall of the tubular terminal. At the same time, the tubular terminal and the arc-shaped mounting base 265 on which the tubular terminal is placed are moved down until the trigger 260 is pressed down again to contact the contact plate 270. At the same time, the first spring 266 is compressed, pressing down the arc-shaped mounting base 265 and the tubular terminal on the arc-shaped mounting base 265 until the contact post 231 contacts the top wall of the connector 263. At this time, the terminal of the tubular terminal contacts the first conductive plate 214, and the first conductive plate 214 and the contact plate 270 form an electrical path. The remaining circular terminals can be installed in sequence in this manner. After the circular or tubular terminal clamping and limiting is completed, multiple detection probes on the recorder 400 are installed on top of the corresponding circular or tubular terminals. Then, the cover plate 110 is closed, and the power supply device 300 is controlled to power on the circular or tubular terminals on the multiple test mechanisms 200 to simulate their actual use. The detection probes monitor and acquire their performance parameters in real time and send them to the recorder 400 for recording.

[0042] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A terminal detection device, characterized in that, The test box (100) includes a test plate (120) installed inside the test box (100). Multiple test mechanisms (200) for clamping terminals are detachably installed on the top wall of the test plate (120). The test mechanism (200) includes a support (210). The top of the support (210) away from the rotating shaft has an upward-opening mounting cavity (211). The mounting cavity (211) is vertically slidably equipped with a trigger (260) for placing tubular terminals. The mounting cavity (211) is located above the trigger (260). A support (250) for placing circular terminal connection ends is detachably installed. A first through groove (251) communicating with the mounting cavity (211) is opened in the middle of the top wall of the support (250). The bearing seat (210) has a rotating shaft at one end, on which a clamping arm (220) is rotatably mounted. An insulating mounting block (230) is slidably mounted on the clamping arm (220). A contact post (231) is detachably mounted on the bottom of the insulating mounting block (230). A pressure plate (2311) is located on the top wall of the contact post (231). A torsion spring (240) is mounted on the rotating shaft. The torsion spring (240) is used to press the clamping arm (220) toward the bearing seat (210) so that the pressure plate (2311) and the support member (250) cooperate to limit the circular terminal, or the contact post (231) passes through the first through groove (251) and cooperates with the trigger member (260) to limit the tubular terminal.

2. The terminal detection device according to claim 1, characterized in that, The outer wall of the support (210) is provided with an installation port (2111) that communicates with the installation cavity (211). The first electrode plates are installed on both sides of the inner wall of the installation port (2111). The first conductive plate (214) is installed at the bottom wall of the installation port (2111). The bottom wall of the support (210) is provided with a first insertion interface (212) and a second insertion interface (213). The second electrode plate and the third electrode plate are respectively installed in the first insertion interface (212) and the second insertion interface (213). The third electrode plate is connected to the first electrode plate and to the first conductive plate (214) through a third wire (216). A contact plate (270) is installed in the middle of the bottom wall of the support (210). A fourth wire (217) is connected between the contact plate (270) and the second electrode plate.

3. The terminal detection device according to claim 2, characterized in that, It also includes a power supply device (300) for energizing the terminals. The power supply device (300) has a positive clamp and a negative clamp. A connection line (121) for connecting multiple test mechanisms (200) in series is installed on the mounting plate (120). The connection line (121) includes a positive contact (1211) for cooperating with the positive clamp, a negative contact (1214) for cooperating with the negative clamp, and a first wire (1212) and a second wire (1213) for cooperating with the first plug-in interface (212) and the second plug-in interface (213) on the test mechanism (200). The positive contact (1211) and the negative contact (1214) are respectively used to cooperate with the first plug-in interface (212) or the second plug-in interface (213) on the test mechanism (200) at the beginning and end positions.

4. The terminal detection device according to claim 3, characterized in that, A groove (2112) is provided at the bottom wall of the mounting cavity (211). Multiple second springs (280) are installed between the bottom wall of the groove (2112) and the bottom wall of the trigger (260). The second springs (280) are used to provide elastic force to keep the trigger (260) pressed upward.

5. A terminal detection device according to claim 4, characterized in that, A mounting groove (261) is provided in the middle of the top wall of the trigger (260). A through-hole (262) that mates with the contact plate (270) is provided in the bottom wall of the mounting groove (261). A connector (263) is detachably installed in the mounting groove (261). A second through-groove (264) is provided in the top wall of the connector (263). An arc-shaped mounting seat (265) that mates with the outer wall of the tubular terminal is slidably installed in the second through-groove (264). A first spring (266) is installed between the bottom wall of the arc-shaped mounting seat (265) and the bottom wall of the second through-groove (264). The first spring (266) is used to provide a spring force to keep the arc-shaped mounting seat (265) pressed upward.

6. A terminal detection device according to claim 3, characterized in that, The inner wall of the first through groove (251) has a protrusion (252) on both sides that mates with the outer wall of the circular terminal wiring end. The middle part of the protrusion (252) has a second conductive plate (215) that mates with the first electrode sheet on both sides of the inner wall of the mounting port (2111).

7. A terminal detection device according to claim 1, characterized in that, The clamping arm (220) has a groove (221) on its top wall along its length for sliding the insulating mounting block (230). The clamping arm (220) has a movable opening (222) on its side wall that communicates with the groove (221). A sliding block (232) is slidably installed in the movable opening (222). A fastening bolt (233) is rotatably installed on the side wall of the sliding block (232) and threadedly connected to the side wall of the insulating mounting block (230). The fastening bolt (233) is used to limit the position of the insulating mounting block (230).

8. A terminal detection device according to claim 1, characterized in that, The bottom wall of the contact post (231) has an arc-shaped groove, which is used to limit the tubular terminal in conjunction with the arc-shaped mounting base (265).

9. A terminal detection device according to claim 1, characterized in that, It also includes a recorder (400) and a cover plate (110) rotatably disposed on one side of the test chamber (100). The recorder (400) has multiple detection probes corresponding to the multiple test mechanisms (200), and the detection probes are used to detect the terminal temperature.

10. A detection method for a terminal detection device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. The operator opens the cover plate (110), installs multiple test mechanisms (200) into the connection line (121) on the mounting plate (120) for series connection, and connects the positive and negative clamps on the power supply device (300) to the corresponding positive contact (1211) and negative contact (1214) respectively. S2. Press the clamping arm (220) to rotate the insulating mounting block (230) on the clamping arm (220) upward to disengage it from the trigger (260). Replace the contact post (231) on the insulating mounting block (230) according to the round hole of the circular terminal connection end to be tested. S3. Place the connection end and wiring end of the circular terminal to be tested on the support (250) and the protrusion (252) respectively. Then slowly release the pressure on the clamping arm (220) so that the insulating mounting block (230) on the clamping arm (220) slowly goes down and passes through the circular hole on the connection end of the circular terminal. Press the trigger (260) down again until it contacts the contact plate (270). The second conductive plate (215) and the contact plate (270) form an electrical path. Install the remaining circular terminals in sequence using this step. S4. After the circular terminal clamping limit is completed, install multiple detection probes on the recorder (400) onto the corresponding multiple circular terminals. Then close the cover plate (110), control the power supply device (300) to power on the circular terminals on multiple test mechanisms (200) to simulate their actual use scenario, and monitor and obtain their performance parameters in real time through the detection probes, and send them to the recorder (400) for recording.

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