CN121500191B - Connector terminal plugging testing device - Google Patents
Connector terminal plugging testing deviceInfo
- Publication number
- CN121500191B CN121500191B CN202610043252.5A CN202610043252A CN121500191B CN 121500191 B CN121500191 B CN 121500191B CN 202610043252 A CN202610043252 A CN 202610043252A CN 121500191 B CN121500191 B CN 121500191B
- Authority
- CN
- China
- Prior art keywords
- monitoring
- needle
- seat
- test
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07357—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card with flexible bodies, e.g. buckling beams
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a connector terminal plugging testing device, which belongs to the technical field of terminal testing and comprises a testing seat, a plurality of testing probes, a driving mechanism, a control system and a needle synchronous monitoring mechanism. This connector terminal grafting testing arrangement, through the synchronous monitoring mechanism of syringe needle to the real-time supervision of connector grafting in-process, a plurality of test probe needles retract synchronism, when the terminal grafting is unusual, timely termination grafting test action, avoid the production of unnecessary mechanical action, improve long-term, under the high-frequency test operating mode, test probe job stabilization nature and reliability are favorable to improving test efficiency simultaneously, and through the mechanical cooperation of monitoring seat, monitoring head and follower three, can monitor the synchronism that the syringe needle retracted of long-term stability reliability, and can assist the accurate reset of syringe needle to a certain extent, further guarantee the reliability of grafting test and the stability of long-term operation.
Description
Technical Field
The invention relates to the technical field of terminal testing, in particular to a connector terminal plugging testing device.
Background
After the connector terminal is assembled in a plugging manner, the insertion depth, the position consistency and the plugging reliability of the terminal are usually required to be tested through a plugging testing device, so that the problems of incomplete interpolation, looseness or virtual connection of the terminal and the like are avoided, and the electrical connection performance and the use safety of the connector are prevented from being influenced.
The conventional connector terminal plugging testing device mostly adopts a testing probe to perform insertion test on terminals. The test probe typically includes an axially movable needle, a resilient element (spring), a barrel, and a tail contact. In the plugging test process, the test probe moves towards the corresponding terminal hole site on the connector shell under the pushing of the driving mechanism.
After the tip contacts the terminal, the test probe continues to advance. If the terminal is inserted in place and locked reliably, the terminal stops the needle from advancing continuously, and the needle is forced to retract relative to the barrel body against the elastic force of the elastic element. The retraction stroke is typically a preset fixed mechanical stroke. When the needle is retracted to the preset stroke end, the conductive part at the tail of the needle can be contacted with the contact at the tail of the cylinder body to form a closed test loop, and the test loop is judged to be qualified.
Otherwise, if the abnormal condition occurs, the test loop cannot be closed, and the judgment is failed. The needle is inserted into the hollow hole without obstruction, and the retraction action is avoided.
2. The terminal is not inserted in place, the terminal is only partially inserted into or does not reach the locking position although being positioned in the hole position, the front end position of the terminal is more backward than the standard position (namely, the insertion depth is insufficient), and when the test probe driving mechanism stops pushing, the needle head can retract to a preset position which is insufficient to contact with the tail contact, so that the test circuit cannot be closed.
3. The terminal is not firmly locked or is in virtual connection, namely the terminal is pushed back (i.e. is ejected) under the pressure of the needle head, the retraction amount of the needle head is small and even the needle head is not retracted, and when the test probe driving mechanism stops pushing, the needle head is not retracted to a preset position contacted with the tail contact, so that the test loop cannot be closed.
Through the mode, the existing plugging testing device can distinguish various abnormal states such as missing terminals, not-in-place plugging, unstable locking and the like to a certain extent. However, in practical applications, there are still significant disadvantages to the prior art. Whether the terminal is abnormal or not, the test probe completes complete pushing and retracting test actions according to a preset stroke, and instant response capability for the actual plugging state of the terminal is lacking. When the terminal is inserted abnormally, unnecessary mechanical actions can be generated, and under the long-term and high-frequency test working conditions, the fatigue aging of the elastic element and the mechanical abrasion of the needle head and the needle cylinder are easily accelerated, so that the retraction precision and the electrical contact reliability of the test probe are affected, and the overall stable operation and the service life of the test device are reduced. And unnecessary mechanical action generates invalid action time, thereby further improving the limited test efficiency.
Therefore, the existing testing device can detect the abnormal conditions of different interpolation of the terminals, the loosening conditions of different degrees and the missing conditions of the terminals in a certain range, but still has the problems of redundant testing actions, vulnerable key parts and limited testing efficiency, and is difficult to meet the requirements of long-term operation stability and high-efficiency testing while guaranteeing the testing reliability.
Disclosure of Invention
The invention provides a connector terminal plugging testing device which comprises a testing seat, a plurality of testing probes, a driving mechanism, a control system and a needle synchronous monitoring mechanism, wherein the testing probes are arranged on the testing seat in a row, the testing probes comprise needles which are elastically and telescopically arranged along the plugging direction, the needles are of a step-shaped structure with a step surface, the needle synchronous monitoring mechanism comprises a plurality of follow-up pieces and a plurality of monitoring units, the follow-up pieces are elastically and slidingly arranged along the plugging direction one by one and abut against the step surface of the needles, the monitoring units are respectively arranged between the adjacent testing probes, each monitoring unit comprises two monitoring heads and a monitoring seat, the monitoring heads are respectively arranged on the follow-up pieces corresponding to the adjacent testing probes and move along the plugging direction, the monitoring seats are elastically and slidingly arranged along the plugging direction, and are simultaneously in abutting contact with the two monitoring heads in a normal state, when the needle displacement on the adjacent testing probes is asynchronous, the corresponding two monitoring heads generate relative displacement, the monitoring seats are separated from the other monitoring heads in a contact state under the limiting effect of one monitoring head, and the other monitoring heads are in an abutting state, and a control system is continuously driven by the control system to continuously drive the testing system.
In one possible implementation, the follower includes an arcuate contact end and a rod-shaped sliding portion, the arcuate contact end being in abutting contact with the step surface and an opening in the arcuate contact end for receiving the small diameter portion of the needle therethrough, such that radial movement of the follower along the needle completes a mating installation with the needle.
In one possible implementation mode, the monitoring seat comprises a sliding rod II and a contact plate, the contact plate is fixedly arranged on the sliding rod II, restraining holes are symmetrically formed in the contact plate, the monitoring head comprises guide posts and limiting tables, the guide posts of the monitoring head are respectively inserted into the restraining holes in the monitoring seat, and the limiting tables are in abutting contact with the contact plate.
In one possible implementation, the follower is slidably disposed in a limited position on the test seat and is maintained in abutting relationship with the needle at all times during needle reset.
In one possible implementation manner, the test seat comprises a first mounting part and a second mounting part, the test probe is integrally mounted on the first mounting part, the needle synchronous monitoring mechanism is integrally mounted on the second mounting part, and the second mounting part is assembled with the first mounting part.
In one possible implementation, a micro-motion contact structure is arranged between the monitoring head and the monitoring seat, and the action stroke of the micro-motion contact structure is smaller than the retraction stroke of the needle.
In one possible implementation, the micro-contact structure comprises a limiting seat and an elastic conductive contact, wherein the elastic conductive contact is mounted on the limiting seat in a limiting sliding manner.
In one possible implementation, the direction of the elastic force exerted by the monitoring seat is opposite to the direction of the elastic force exerted by the follower, and when the needle is retracted, part of the elastic force exerted by the monitoring seat is transmitted to the follower through the monitoring head.
According to the connector terminal plugging testing device, the needle synchronous monitoring mechanism is used for monitoring the retraction synchronicity of a plurality of test probe needles in real time in the process of plugging the connector, plugging testing actions are timely stopped when the terminals are plugged abnormally, unnecessary mechanical actions are avoided, the stability and reliability of the test probes in long-term and high-frequency testing working conditions are improved, the testing efficiency is improved, in the monitoring process, the needle retraction synchronicity can be monitored through the mechanical cooperation of the monitoring seat, the monitoring head and the follower, accurate resetting of the needles can be assisted to a certain extent, and the reliability of plugging testing and the stability of long-term operation are further ensured.
Drawings
Fig. 1 is a schematic structural diagram of a test socket and a mounting socket of a connector terminal plugging test device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a partial top view structure of a connector terminal plugging testing device according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a second sliding rod, a limit slot and a mounting table of the connector terminal plugging testing device according to the embodiment of the invention.
Fig. 4 is a schematic structural diagram of a first sliding rod and a second sliding rod of a connector terminal plugging testing device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a first mounting portion and a second mounting portion of a connector terminal plugging testing device according to an embodiment of the present invention.
Fig. 6 is an exploded view of a test socket of a connector terminal plugging testing device according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a state of a needle and a test head in an un-plugged state of the connector terminal plugging test device according to an embodiment of the present invention.
Fig. 8 is a schematic diagram showing a state that a needle contacts a test head when a test loop of a connector terminal plugging test device provided by an embodiment of the invention is closed.
Fig. 9 is a schematic diagram of a micro-motion structure of a connector terminal plugging testing device according to an embodiment of the present invention.
The device comprises a test seat 1, a first mounting part 101, a second mounting part 2, a test probe 21, a needle head 22, a test head 3, a needle head synchronous monitoring mechanism 31, a follower 311, an arc-shaped contact end 312, a rod-shaped sliding part 313, a connecting frame 314, a sliding rod I, a sliding rod 32, a monitoring head 321, a guide post 322, a limiting table 33, a monitoring seat 331, a sliding rod II, a 332, a contact plate 333, a restraining hole 34, a micro-contact structure 341, a limiting seat 342, an elastic conductive contact 35, a spring element II, a spring element 37, a guide rod 38, a limiting groove 39, a mounting table 4 and a mounting seat.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described below and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
Referring to fig. 1-8, a connector terminal plugging testing device includes a testing seat 1, testing probes 2, a needle synchronous monitoring mechanism 3, a mounting seat 4, a driving mechanism (not shown in the figure) and a control system (not shown in the figure), wherein the testing seat 1 is mounted on the mounting seat 4, a plurality of testing probes 2 are mounted on the testing seat 1 in rows from left to right, and as shown in fig. 1, the number of the testing probes 2 is four and corresponds to terminals on a connector one by one.
The test probe 2 comprises a needle 21 and a test head 22, wherein the needle 21 is elastically telescopic along the front-back direction, the test head 22 is arranged at the tail part, the needle 21 is of a step-shaped structure with a step surface, and the test head 22 is connected to a test circuit through a wire. The needle synchronous monitoring mechanism 3 is used for monitoring whether the needles 21 on the array of test probes 2 retract synchronously in the connector plugging test process so as to judge whether the terminals have plugging abnormal conditions in real time, and send abnormal signals to the control system when detecting the terminal abnormality, so that the driving mechanism is controlled to terminate the subsequent plugging test action.
The specific testing process is that the driving mechanism consists of a servo motor and a linear module, the linear module is driven by the servo motor to drive the mounting seat 4 to advance forwards, so that the needle head 21 of the test probe 2 is inserted into a hole corresponding to the connector, and the needle head 21 is in abutting contact with a terminal in the corresponding hole. Then, as the mounting seat 4 continues to advance, the needle 21 retracts backwards under the blocking of the terminal, when the needle 21 retracts to a preset position and is in abutting contact with the test head 22 at the tail of the test probe 2 (as shown in fig. 6), a closed test loop is formed, and the control system receives a closing signal and determines that the connector is qualified.
Normally, the needles 21 will retract backward synchronously under the blocking of the terminals after contacting with the terminals, and the needles 21 arranged in a row maintain a consistent moving state.
When any one of the plug values of the terminals is abnormal, for example, the plug of the terminal is not in place and the plug is not firm, the corresponding needle 21 is pushed out by the needle 21 after being propped against the needle, so that the needle 21 is not synchronously retracted backwards with the rest of the needles 21, the needle synchronous monitoring mechanism 3 can monitor the asynchronous state in real time and send an abnormal signal to the control system, and the control system immediately sends an interrupt instruction to the driving mechanism, so that the mounting seat 4 stops moving and resets. The connector can be marked as defective by the existing marking device, and then the detection work of the next connector is continued.
It should be noted that, the present invention may also monitor the situation of excessive plugging, that is, when any one or more terminals are plugged excessively, the corresponding test probe 2 will retract in advance during plugging, and the needle synchronous monitoring mechanism 3 can also detect the unsynchronized state of the needle 21 and send out an abnormal signal.
Referring to fig. 1 and 2, the needle synchronization monitoring mechanism 3 includes a plurality of followers 31 and a plurality of monitoring units. The follower 31 is in one-to-one correspondence with the test probes 2 and is elastically slidably arranged on the test seat 1 in the front-back direction, as shown in fig. 2, a first spring member 35 is arranged between the follower 31 and the test seat 1, and the front end of the follower 31 abuts against the step surface of the needle 21.
The monitoring units are respectively arranged between the adjacent test probes 2, each monitoring unit comprises two monitoring heads 32 and a monitoring seat 33, the monitoring heads 32 are respectively arranged on the follower 31 corresponding to the adjacent test probes 2, the follower 31 moves, the monitoring seats 33 are elastically arranged on the test seat 1 in a sliding manner in the front-back direction, and as shown in fig. 2, two spring members 36 are arranged between the monitoring seats 33 and the test seat 1. Under normal conditions, the test socket 1 in the same test unit is held in abutting contact with both of the monitoring heads 32 at the same time.
When the needle 21 is retracted synchronously, the follower 31 moves later, and the second spring member 36 releases the elastic force to enable the monitoring seat 33 to move backwards and keep the two corresponding monitoring heads 32 in abutting contact.
When any needle 21 fails to retract synchronously, the corresponding follower 31 stops moving, the monitoring seat 33 will not move backwards under the limit of the corresponding monitoring head 32 on the follower 31, and then is out of contact with the other monitoring head 32, at this time, the monitoring loop is in an off state and sends an abnormal signal to the control system.
It should be noted that, the monitoring heads 32 and the monitoring seats 33 in all the monitoring units are connected in series through wires to form a total monitoring loop, the wiring of the loop is simple, only two signal wires are needed to be led out, and the control system only needs to monitor one DI point to complete judgment, namely, when the total monitoring loop is conducted, the synchronous of all the needles 21 is indicated, the connector is qualified, and when the total monitoring loop is disconnected, at least one needle 21 is out of synchronization, and the connector is unqualified.
Referring to fig. 1,5 and 6, in order to facilitate assembly and replacement and repair in a later period, the test socket 1 is provided with a first mounting portion 101 and a second mounting portion 102, the test probe 2 is mounted on the first mounting portion 101, the needle synchronous monitoring mechanism 3 is mounted on the second mounting portion 102, and only the second mounting portion 102 with the needle synchronous monitoring mechanism 3 mounted thereon is required to be assembled with the first mounting portion 101 with the test probe 2 mounted thereon, so that the matching mounting of the follower 31 and the test probe 2 is completed.
Referring to fig. 2, 5 and 6, the follower 31 includes an arc-shaped contact end 311 and a rod-shaped sliding portion 312, the rod-shaped sliding portion 312 is slidably inserted in the second mounting portion 102 and symmetrically distributed from front to back, the arc-shaped contact end 311 is fixedly mounted at a front end of the symmetrical rod-shaped sliding portion 312 and contacts with a stepped surface of the needle 21 in an abutting manner, and a small diameter portion of the needle 21 can pass through an opening of the arc-shaped contact end 311. When the first mounting portion 101 is mounted on the second mounting portion 102, the arc-shaped contact end 311 is just caught on the needle 21 and abuts against the stepped surface (as shown in fig. 5), and the arc-shaped contact end 311 is disposed coaxially with the needle 21.
Referring to fig. 2, 3, 4 and 6, the follower 31 further includes a connecting frame 313 and a first sliding rod 314, wherein the rear ends of the symmetrical rod-shaped sliding portions 312 are fixedly mounted on the connecting frame 313, the connecting frame 313 is located in the second mounting portion 102, the first sliding rod 314 is fixedly connected to the connecting frame 313 and located above the corresponding test probe 2, and simultaneously, the first sliding rod 314 is slidably mounted in the second mounting portion 102 back and forth.
The monitoring seat 33 includes a second sliding rod 331 and a contact plate 332, the contact plate 332 is fixedly mounted on the second sliding rod 331, and the contact plate 332 is symmetrically provided with a restraining hole 333 (as shown in fig. 3), the monitoring head 32 includes a guide post 321 and a limiting platform 322, the guide post 321 is fixedly mounted on the front side surface of the corresponding limiting platform 322, and the limiting platform 322 is fixedly mounted on the first sliding rod 314 of the corresponding follower 31. The contact plates 332 are positioned at the front side of the limiting tables 322, and the guide posts 321 are respectively inserted into the corresponding constraint holes 333. The contact plate 332 and the limiting tables 322 are made of conductive materials, when the contact plate 332 is simultaneously contacted with the corresponding two limiting tables 322, the monitoring loop is in a closed state, and any one of the contact plates is not contacted, so that the monitoring loop is in an open state.
Referring to fig. 2, 4 and 9, in order to improve the monitoring reliability, a micro-motion contact structure 34 is disposed on the limiting platform 322, the micro-motion contact structure 34 is located below the guide post 321, as shown in fig. 9, the micro-motion contact structure 34 includes a limiting seat 341 and an elastic conductive contact 342, the elastic conductive contact 342 is mounted on the limiting seat 341 in a front-back limiting manner, the stroke is limited to 0-0.3mm, that is, after the interval between the limiting platform 322 and the contact plate 332 exceeds 0.3mm, the monitoring circuit is disconnected, wherein the retraction stroke of the contact needle 21 is 2.6mm, and the monitoring action is triggered before the needle 21 is effectively retracted. Therefore, invalid plugging test actions can be terminated timely, and mechanical abrasion and elastic fatigue are effectively reduced.
Referring to fig. 2, 3 and 4, in order to improve the stability of the sliding rod two 331 and the sliding rod one 314 sliding back and forth, a plurality of guide rods 37 are fixedly installed in the second installation portion 102, and the guide rods 37 respectively penetrate through the sliding rod two 331 and the sliding rod one 314, so that the sliding rod two 331 and the sliding rod one 314 slide back and forth along the corresponding guide rods 37. The first spring member 35 is sleeved on the corresponding guide rod 37 and is located between the first slide rod 314 and the rear side wall of the mounting cavity in the second mounting portion 102.
The front end of the second sliding rod 331 is provided with a limiting groove 38 (as shown in fig. 3), the corresponding guide rod 37 is provided with a mounting table 39, the second spring member 36 is sleeved on the corresponding guide rod 37, the front end of the second spring member is fixedly connected to the mounting table 39, and the rear end of the second spring member is fixedly arranged on the bottom surface of the limiting groove 38.
In the plugging test process of the connector, the sliding rod I314 moves backwards to enable the spring element I35 to generate a compression stroke, meanwhile, the spring element II 36 releases elasticity to enable the sliding rod II 331 to move backwards, so that the contact plate 332 is tightly attached to the corresponding two limiting tables 322, the elastic acting force of the sliding rod II 331 is opposite to that of the sliding rod I314, part of elastic force of the sliding rod II 331 is transmitted to the sliding rod I314 through the contact plate 332 and the limiting tables 322, acting force of the spring element I35 on the needle head 21 through the arc-shaped contact end 311 is reduced to a certain extent, influence of a monitoring process on the plugging test process is reduced, and stability of the plugging test process is guaranteed. It should be noted that the elastic force of the first spring element 35 acting on the follower 31 is greater than the sum of the elastic forces of the two adjacent spring elements 36 acting on the detecting seat 33, so as to ensure that the follower 31 can stably return against the acting force of the second spring element 36 when the needle 21 returns.
And the follower 31 is arranged on the second mounting portion 102 in a sliding manner in a limiting manner, as shown in fig. 2, the front side wall of the mounting cavity is utilized to limit the connecting frame 313, and then the follower 31 is limited, so that the first spring element 35 is always in a compressed state, when the needle 21 is ensured to reset, the follower 31 is always stably kept in a abutting relationship with the needle 21, and when the elastic element in the test probe 2 is loosened and cannot accurately reset the needle 21, the needle 21 is assisted to accurately reset, and the reliability of the plugging test and the stability of the test process are further ensured.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, slidably connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered by the scope of the present invention.
Claims (8)
1. The utility model provides a connector terminal grafting testing arrangement, includes test seat, a plurality of test probe, actuating mechanism and control system, test probe is listed as and is installed on the test seat, and test probe includes the syringe needle that sets up along grafting direction elasticity flexible, and the syringe needle is the step-like structure that has the step face, its characterized in that:
still including being used for monitoring whether synchronous syringe needle synchronous monitoring mechanism of syringe needle displacement, syringe needle synchronous monitoring mechanism includes:
The plurality of follow-up pieces are in one-to-one correspondence with the test probes, elastically slide along the inserting direction and lean against the step surface of the needle head;
each monitoring unit comprises two monitoring heads and a monitoring seat, wherein the monitoring heads are respectively arranged on the follow-up piece corresponding to the adjacent test probes and move along the inserting direction;
In a normal state, the monitoring seat is simultaneously kept in abutting contact with the two monitoring heads, and the monitoring heads in all the monitoring units and the monitoring seat are connected in series through wires to form a monitoring loop;
When the needle heads retract synchronously, the follower moves backwards, and the elastic part II releases elastic force to enable the monitoring seat to move backwards along with the elastic part II and keep an abutting contact state with the two corresponding monitoring heads;
When any needle fails to retract synchronously, the corresponding follow-up piece stops moving, the monitoring seat does not continue to move backwards under the limit of the corresponding monitoring head on the follow-up piece, is out of contact with the other monitoring head, the monitoring loop is disconnected, an abnormal signal is sent to the control system, and the control system controls the driving mechanism to stop the continuous pushing of the test probe according to the abnormal signal.
2. A connector terminal insertion testing device according to claim 1, wherein the follower includes an arcuate contact end and a rod-like sliding portion, the arcuate contact end being in abutting contact with the step surface and an opening of the arcuate contact end for receiving the small diameter portion of the needle therethrough, the radial movement of the follower along the needle completing mating installation with the needle.
3. The connector terminal plugging testing device according to claim 1, wherein the monitoring seat comprises a second sliding rod and a contact plate, the contact plate is fixedly arranged on the second sliding rod, restraining holes are symmetrically formed in the contact plate, the monitoring head comprises guide posts and limiting tables, the guide posts of the monitoring head are respectively inserted into the restraining holes in the monitoring seat, and the limiting tables are in abutting contact with the contact plate.
4. A connector terminal plugging testing device according to any one of claims 1-3, wherein the follower is arranged on the testing seat in a limited sliding manner, and always keeps an abutting relation with the needle head in the needle head resetting process.
5. A connector terminal plugging testing device according to claim 1 or 2, wherein the testing seat comprises a first mounting part and a second mounting part, the testing probe is integrally mounted on the first mounting part, the needle synchronous monitoring mechanism is integrally mounted on the second mounting part, and the second mounting part is assembled with the first mounting part.
6. A connector terminal plugging testing device according to claim 1 or 3, wherein a micro-contact structure is arranged between the monitoring head and the monitoring seat, and the action stroke of the micro-contact structure is smaller than the retraction stroke of the needle.
7. The connector terminal plugging testing device according to claim 6, wherein the micro-contact structure comprises a limiting seat and an elastic conductive contact, and the elastic conductive contact is mounted on the limiting seat in a limiting sliding manner.
8. A connector terminal plugging testing device according to claim 1 or 3, wherein the direction of the elastic force applied to the monitoring seat is opposite to the direction of the elastic force applied to the follower, and when the needle is retracted, part of the elastic force applied to the monitoring seat is transmitted to the follower through the monitoring head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610043252.5A CN121500191B (en) | 2026-01-14 | 2026-01-14 | Connector terminal plugging testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610043252.5A CN121500191B (en) | 2026-01-14 | 2026-01-14 | Connector terminal plugging testing device |
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| Publication Number | Publication Date |
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| CN121500191A CN121500191A (en) | 2026-02-10 |
| CN121500191B true CN121500191B (en) | 2026-03-31 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204789913U (en) * | 2015-06-12 | 2015-11-18 | 珠海拓优电子有限公司 | Novel circuit board test fixture |
| CN208109998U (en) * | 2018-04-04 | 2018-11-16 | Oppo广东移动通信有限公司 | A kind of circuit board testing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2476389A1 (en) * | 2002-03-22 | 2003-10-09 | Electro Scientific Industries, Inc. | Test probe alignment apparatus |
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- 2026-01-14 CN CN202610043252.5A patent/CN121500191B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204789913U (en) * | 2015-06-12 | 2015-11-18 | 珠海拓优电子有限公司 | Novel circuit board test fixture |
| CN208109998U (en) * | 2018-04-04 | 2018-11-16 | Oppo广东移动通信有限公司 | A kind of circuit board testing device |
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| Publication number | Publication date |
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| CN121500191A (en) | 2026-02-10 |
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