A memory card connector testing device and testing method

Abstract

The present invention relates to the field of connector testing, and discloses a connector testing device and a testing method for a memory card, wherein the device includes a machine tool, the machine tool is provided with a conveying component for conveying the connector and a control component corresponding to the position of the conveying component, the machine tool and the control component are respectively provided with an upper test module and a lower test module for testing the connector, the conveying component includes a conveyor belt for placing the connector, and the conveyor belt is provided with a plurality of adjustment components arranged in a rectangular array. The present invention can drive the connector to rise to achieve upper and lower conduction through the cooperation between the conveying component, the adjustment component and the conveyor belt, and then quickly complete the comprehensive test, and can drive the connector to move stably before and after the test, which can effectively improve the overall test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of connector testing, and in particular to a connector testing device and a testing method for a memory card. Background Art

[0002] A memory card connector is an interface used to connect devices to memory cards. Common ones include SD card connectors, TF card connectors, and XD card connectors, etc. They all need to be tested before leaving the factory to ensure electrical connection.

[0003] For example, Chinese patent publication number CN203551703U discloses a card holder automatic inspection test device, which includes a test device body, a lower test fixing plate arranged on the body, and an upper test pressure plate that can slide up and down. The lower test fixing plate is provided with a number of positioning spring pins for positioning and supporting the PCBA board and a test probe for contacting the contact pins to be tested on the bottom surface of the PCBA board, and the lower surface of the upper test pressure plate is provided with an upper test probe for contacting the card holder spring on the PCBA board. It does not require the operator to insert and remove the card, which greatly shortens the test time and improves production efficiency.

[0004] This application uses a positioning spring pin to press down the PCBA board so that it contacts the test probes on the upper and lower sides. This makes the loading and unloading of the PCBA board more troublesome, which in turn makes the overall test efficiency low and has certain limitations in use.

[0005] Therefore, it is necessary to provide a connector testing device and a testing method for a memory card to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a connector testing device and a testing method for a memory card to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, a test device and a test method are designed to improve the test efficiency of connectors.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a connector testing device for a memory card, comprising a machine tool, on which a conveying component for conveying a connector and a control component corresponding to the position of the conveying component are arranged, the machine tool and the control component are respectively provided with an upper test module and a lower test module for testing the connector, the conveying component comprises a conveyor belt for placing the connector, and the conveyor belt is provided with a plurality of adjustment components arranged in a rectangular array; starting the control component can drive the lower test module and the corresponding adjustment component to rise synchronously relative to the conveyor belt, and then drive the connector to rise and contact the upper test module.

[0009] As a further solution of the present invention: the adjustment assembly includes a nest fixedly mounted on the conveyor belt, and a push rod is slidably mounted inside the nest along the axial direction of the nest.

[0010] As a further solution of the present invention: the control component includes a cylinder fixedly connected to the machine tool, and the output shaft of the cylinder is fixedly installed with a push plate for arranging the lower detection module, and the push plate and part of the push rod are corresponding to each other up and down.

[0011] As a further solution of the present invention: the conveying assembly also includes two rollers rotatably mounted on the machine tool, a motor transmission-connected to one of the rollers is fixedly mounted on the machine tool, the conveyor belt is arranged on the two rollers and a through hole is opened through its surface for the lower test module to pass through.

[0012] As a further solution of the present invention: a plurality of avoidance grooves corresponding to the number of rows of push rods are formed through the outer surface of the roller shaft, and the depth dimension of the avoidance grooves relative to the roller shaft is greater than or equal to the length dimension of the push rods protruding from the conveyor belt.

[0013] As a further solution of the present invention: the tops of the mandrels on the front and rear sides are both slidably mounted with limit assemblies; when the mandrel rises relative to the conveyor belt, the limit assemblies on the front and rear sides can be relatively close.

[0014] As a further solution of the present invention: the limiting assembly includes a slide plate that slides with the push rod and a pull rope that is fixedly connected to the conveyor belt. The pull rope passes through the bottom surface of the push rod and is fixedly connected to the slide plate. A spring is fixedly installed between the slide plate and the push rod, and a placement groove for placing the spring and the pull rope is jointly opened between the slide plate and the push rod.

[0015] As a further solution of the present invention: the portion of the pull rope extending from the bottom surface of the top rod to the conveyor belt is coplanar with the top rod and the avoidance groove as a whole; so that when the pull rope moves with the conveyor belt and the top rod, it can pass through the avoidance groove.

[0016] As a further solution of the present invention: the nesting and the end of the push rod away from the control component are both made of magnetic material, and the magnetic poles of the two are arranged in opposite directions, so that the nesting can correspond to the end of the push rod away from the control component.

[0017] The present invention also provides the following technical solution: a method for testing a connector of a memory card, comprising the following steps:

[0018] S1, start the conveying assembly to drive the connector to move through the conveyor belt, and stop moving when it moves to the bottom of the upper test module;

[0019] S2, starting the control component to drive the lower test module to rise, and after contacting the corresponding adjustment component, drive the lower test module and the corresponding adjustment component to rise synchronously, so that the lower test module and the corresponding adjustment component are in synchronous contact with the bottom surface of the connector;

[0020] S3, the control component continues to start, which can push the connector up so that the top surface of the connector contacts the upper test module, and then both the upper test module and the lower test module contact the connector to complete the test.

[0021] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation between the conveying component, the adjustment component and the conveyor belt, the connector can be driven to rise to achieve upper and lower conduction, and then the comprehensive test can be completed quickly. The connector can be driven to move stably before and after the test, which can effectively improve the overall test efficiency. The whole process does not require excessive manual intervention, which can effectively reduce the workload and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the machine tool of the present invention;

[0025] Figure 3 It is a schematic diagram of the roller shaft and avoidance groove structure of the present invention;

[0026] Figure 4 for Figure 3 A magnified view of the structure at center;

[0027] Figure 5 It is a schematic diagram of the structure of the push rod and the slide plate of the present invention;

[0028] Figure 6 It is a schematic diagram of the top rod and the pull rope structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the push rod and spring structure of the present invention;

[0030] Figure 8 It is a schematic diagram of the conveyor belt and fan-shaped groove structure of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the ejector rod and the guide groove of the present invention;

[0032] Fig.10 It is a schematic diagram of the arc segment and vertical segment structure of the present invention.

[0033] In the figure: 1, machine tool; 2, conveying component; 3, adjustment component; 4, upper test module; 5, lower test module; 6, control component; 201, roller; 202, conveyor belt; 203, avoidance groove; 204, through hole; 205, fan-shaped groove; 301, nesting; 302, push rod; 303, slide plate; 304, pull rope; 305, spring; 306, placement groove; 307, slider; 308, guide groove; 3081, arc segment; 3082, vertical segment; 601, cylinder; 602, push plate. DETAILED DESCRIPTION

[0034] Embodiment 1:

[0035] See also Figures 1 to 4 An embodiment of the present invention provides a connector testing device for a memory card, which is mainly used to improve the overall testing efficiency of the connector. The device includes a machine tool 1, on which a conveying component 2 for conveying the connector and a control component 6 corresponding to the position of the conveying component 2 are provided. An upper test module 4 for conducting above the connector is fixedly installed on the machine tool 1, and a lower test module 5 for conducting below the connector is fixedly installed on the control component 6. The upper test module 4 and the lower test module 5 are combined to form a comprehensive test of the connector.

[0036] The conveying assembly 2 includes a conveyor belt 202 for placing the connector. The conveyor belt 202 is provided with a plurality of adjustment assemblies 3 arranged in a rectangular array, and some of the adjustment assemblies 3 are in a corresponding state with the control assembly 6. When the control assembly 6 drives the lower test module 5 to rise, it can drive some of the adjustment assemblies 3 to rise synchronously, and finally the lower test module 5 can contact the bottom of the connector synchronously with this part of the adjustment assembly 3. When the control assembly 6 is started, the lower test module 5 and the corresponding adjustment assembly 3 are in contact with the bottom of the connector, which can drive the connector to rise vertically. The connector after rising can also contact the upper test module 4, and finally the lower test module 5 and the upper test module 5 are both connected to complete the test.

[0037] In this embodiment, both the upper test module 4 and the lower test module 5 are electrically tested by connecting with the connector through probes, and both are existing mature technologies and will not be described in detail here.

[0038] Reference Figure 3 and Figure 4 In this embodiment, preferably: the adjustment component 3 includes a nest 301 fixedly mounted on the conveyor belt 202, and a push rod 302 is slidably mounted inside the nest 301 along the axial direction of the nest 301. When the push rod 302 is located on the upper surface of the conveyor belt 202 (or corresponds to the control component 6), it is in a vertically descending state (it will naturally descend due to gravity). At this time, the rise of the control component 6 can drive the push rod 302 to rise vertically.

[0039] In this embodiment, the top rods 302 above and below the conveyor belt 202 are both arranged in six columns and three rows. Of course, the specific number can be increased accordingly to meet the testing requirements of connectors of different sizes. At the same time, the connector corresponds to the top rods 302 in two columns and three rows.

[0040] Reference Figure 2 and Figure 3 In this embodiment, preferably: the control assembly 6 includes a cylinder 601 fixedly connected to the machine tool 1, and the output shaft of the cylinder 601 is fixedly installed with a push plate 602 for placing the lower detection module, and the push plate 602 and the cylinder 601 are located at the center of the conveyor belt 202 along the left and right direction. In this embodiment, the push plate 602 corresponds to the position of the push rods 302 in the two middle rows, and when it rises, it can drive a total of six push rods 302 in the two rows to rise.

[0041] Of course, in order to ensure that the top rod 302 is in a vertically descended state relative to the nest 301, the nest 301 and the top of the top rod 302 can be made of magnetic material, or the bottom of the top rod 302 and the top surface of the push plate 602 can be made of magnetic material, and the magnetic poles of the two (nest 301 and the top of the top rod 302, the bottom of the top rod 302 and the top surface of the push plate 602) are designed to be opposite. The top rod 302 can maintain a descending state relative to the nest 301 when magnetically adsorbed without a driving force. At this time, the nest 301 and the top rod 302 remain flush with the conveyor belt 202.

[0042] Reference Figure 2 and Figure 3 In this embodiment, preferably: the conveying assembly 2 also includes two rollers 201 rotatably mounted with the machine tool 1, and a motor (not shown in the figure) drivingly connected to one of the rollers 201 is fixedly mounted on the machine tool 1, and the conveyor belt 202 is arranged on the two rollers 201, and the conveyor belt 202 can be driven to move by the motor and the two rollers 201. The surface of the conveyor belt 202 is penetrated by a through hole 204 for the lower test module 5 to pass through, and the number of the through holes 204 is multiple and one of them corresponds to the lower test module 5, and the through hole 204 is arranged correspondingly to the ejector rod 302.

[0043] The outer surface of the roller 201 is provided with three avoidance grooves 203, which correspond to the three rows of the push rods 302. The depth of the avoidance grooves 203 relative to the roller 201 is greater than or equal to the distance of the push rod 302 protruding from the conveyor belt 202, so that the push rod 302 will not interfere with the roller 201 when it moves with the conveyor belt 202.

[0044] When in use, the connector falls onto the conveyor belt 202 and moves with the conveyor belt 202. When it moves to the bottom of the upper test module 4, the conveyor belt 202 pauses, and then the cylinder 601 drives the push plate 602 and the lower test module 5 to rise. When the push plate 602 rises, it can push the top rods 302 in the two middle rows of the conveyor belt 202 to rise synchronously. When the top rods 302 are in the synchronous rising state, they are flush with the lower test module 5. Finally, the top rod 302 can contact the bottom of the connector synchronously with the lower test module 5 and push the connector to rise vertically. After rising, the connector finally contacts the upper test module 4, so that the upper test module 4 and the lower test module 5 are both in contact with the connector, thereby completing a comprehensive test.

[0045] After the test is completed, the cylinder 601 descends to separate the upper test module 4 and the lower test module 5 from the connector in turn, and then the push rod 302 can also automatically descend to make the connector fall onto the conveyor belt 202. At this time, the conveyor belt 202 can drive the connector to continue moving, and the next connector can be tested again.

[0046] In summary, through the cooperation of the push plate 602, the push rod 302, the nesting 301 and the through hole 204 and other structures, the connector can be driven to rise to achieve upper and lower conduction, thereby quickly completing the comprehensive test. The connector can be driven to move stably before and after the test, which can effectively improve the overall test efficiency, and the push rod 302 that pushes the connector to move will not interfere with the roller 201. The entire process does not require excessive manual intervention, which can effectively reduce the workload and is more practical.

[0047] Embodiment 2:

[0048] See also Figures 1 to 7 On the basis of the first embodiment, in order to further improve the test accuracy of the connector, the push rod 302 is improved: at this time, the limit components are slidably installed above the push rods 302 on the front and rear sides, and the initial overall arrangement direction of the limit components is kept flush with the width direction of the conveyor belt 202. When the push plate 602 drives the push rod 302 to rise based on the conveyor belt 202, the limit components can be relatively close to the middle through hole 204, thereby limiting the connector in the middle of the front and rear directions.

[0049] Reference Figure 6 and Figure 7In this embodiment, preferably, the limiting assembly includes a slide plate 303 that is slidably matched with the top rod 302 and a pull rope 304 that is fixedly connected to the inner surface of the conveyor belt 202. The slide plate 303 is designed in an L shape as a whole. The pull rope 304 penetrates from the bottom of the top rod 302 and then extends from the outer surface of the top rod 302, and then is fixedly connected to the bottom surface of the slide plate 303. At the same time, a spring 305 is fixedly installed between the slide plate 303 and the top rod 302, and a placement groove 306 for placing the spring 305 and the pull rope 304 is provided between the slide plate 303 and the top rod 302. The placement groove 306 prevents the lower side of the spring 305 from protruding from the bottom surface of the slide plate 303, and also prevents the pull rope 304 and the spring 305 from being exposed and interfering with the conveyor belt 202.

[0050] certainly, Figure 7 Only one state of the slide plate 303 relative to the top rod 302 is shown. The initial position of the slide plate 303 relative to the top rod 302 can be adjusted according to actual needs, as long as the pull rope 304 can be used to slide the slide plate 303 relative to the top rod 302 after the top rod 302 rises. At the same time, the initial position of the front slide plate 303 based on the top rod 302 is opposite to the initial position of the rear slide plate 303 based on the top rod 302, so that when the pull rope 304 is released, the slide plates 303 on the front and rear sides have a process of approaching each other.

[0051] It should be noted that after the pull rope 304 passes through the bottom surface of the top rod 302 and is fixedly connected to the conveyor belt 202, the part where the pull rope 304 passes through is located on the right side of the top rod 302, that is, the top rod 302 can completely block the pull rope 304 when viewed from the left side, and the two overlap so that the avoidance groove 203 is applicable to both the top rod 302 and the pull rope 304. Specifically, the virtual surface of the pull rope 304 relative to the top rod 302 and the sliding direction of the slider 307 relative to the top rod 302 are perpendicular.

[0052] When in use, the push plate 602, the top rod 302 and the nesting 301 and other structures can drive the connector to rise to achieve upper and lower conduction to complete a comprehensive test. The working process and effect of this part are the same as those in the first embodiment, and will not be repeated here. The difference is that when the push plate 602 drives the top rod 302 and the lower test module 5 to rise synchronously, the plane area of ​​the slide plate 303 holds up the bottom surface of the connector. At this time, the pull rope 304 is gradually released relative to the top rod 302. At this time, the spring 305 can make the slide plate 303 slide relative to the top of the top rod 302, and then the slide plates 303 on the front and rear sides are close to the middle. In this process, the connector can be pushed to center and limit it in the front and rear directions.

[0053] In Example 1, due to the difference in the placement position of the connector on the conveyor belt 202 and the change in the position of the connector driven up by the push rod 302, the connector may deviate from the upper test module 4 and the lower test module 5, and thus cannot achieve full contact, affecting the test accuracy, and there are certain limitations in use.

[0054] Compared with the first embodiment, through the coordination of the structures such as the top rod 302, the slide plate 303, the pull rope 304 and the conveyor belt 202, when the top rod 302 rises relative to the conveyor belt 202, the slide plates 303 on the front and rear sides can be driven to move closer to the middle, thereby realizing the centering and limiting of the connector along the front and rear directions, which can effectively improve the accurate contact between the connector and the upper test module 4 and the lower test module 5, thereby ensuring the overall test accuracy. The overall solution is combined with the movement of the top rod 302, and the avoidance groove 203 is used for the avoidance of the top rod 302 and the pull rope 304 at the same time, and the slide plate 303 will not affect the use of the conveyor belt 202 and the transportation of the connector, and has stronger applicability.

[0055] Embodiment three:

[0056] See also Figures 1 to 10 On the basis of the second embodiment, in order to further improve the test accuracy of the connector, the top rod 302 is further improved: at this time, the top of the middle top rod 302 is also slidably installed with a limit assembly, that is, the middle top rod 302 is also correspondingly configured with a slide plate 303, a pull rope 304 and a spring 305. Further, a guide groove 308 is provided on the outer surface of the middle top rod 302, and a slider 307 that is slidably engaged with the guide groove 308 is fixedly installed on the inner wall of the middle nest 301. When the top rod 302 rises relative to the conveyor belt 202, it also rises based on the nest 301. At this time, the slider 307 and the guide groove 308 can drive the top rod 302 to rotate 90 degrees while rising, and then rise vertically.

[0057] In this embodiment, the surface of the conveyor belt 202 is provided with a fan-shaped groove 205 for the intermediate limit assembly to rotate 90 degrees, and the 90-degree rotation of the intermediate push rod 302 is based on the fact that the nest 301 is not affected, and the intermediate limit assembly moves along the fan-shaped groove 205 when the intermediate push rod 302 rotates. Of course, the nest 301 needs to provide a space for the limit assembly to rotate 90 degrees, and also needs to cut off the part that adapts to the fan-shaped groove 205.

[0058] At the same time, the position where the pull cord 304 is inserted from the bottom of the top rod 302 can be set at the center of the bottom surface of the top rod 302, so that the 90-degree rotation of the top rod 302 based on the nesting 301 will not interfere with the pull cord 304.

[0059] Reference Fig. 9 and Fig.10In this embodiment, preferably: the guide groove 308 includes an arc segment 3081 and a vertical segment 3082 opened on the outer surface of the top rod 302, the arc segment 3081 is connected to the vertical segment 3082 and is located above the vertical segment 3082, and the arc segment 3081 can be used to rotate the top rod 302 90 degrees (roughly a quarter circle), that is, when the slider 307 moves along the arc segment 3081, the top rod 302 will automatically rotate 90 degrees.

[0060] It should be noted that the 90-degree rotations of the two middle rows of limit assemblies are opposite, and the directions of the arc segments 3081 on the two corresponding middle push rods 302 are also opposite, so that the two corresponding slides 303 in the middle can be relatively close to each other, which is the same as the relative approach process of the two corresponding slides 303 on the front and rear sides.

[0061] It should also be noted that the middle row of top rods 302 and the limit assembly can be slightly lowered in the initial height relative to the other top rods 302, and the middle limit assembly is spaced apart from the upper surface of the conveyor belt 202 relative to the other limit assemblies in the initial state to facilitate the 90-degree rotation of the middle top rod 302.

[0062] At the same time, the lower end of the middle push rod 302 protrudes relatively from the lower ends of the front and rear push rods 302, so that the push plate 602 can first contact the middle push rod 302 to drive the push rod 302 to rise, and then drive the middle push rod 302 to rotate 90 degrees first, and then rise synchronously with the front and rear push rods 302. At this time, the protruding part above the slide plate 303 can correspond to the side wall of the connector (the protruding part of the middle slide plate 303 can be slightly higher than the front and rear slide plates 303, and the plane area of ​​the middle slide plate 303 can be slightly lower than the front and rear slide plates 303. The plane areas of the front and rear slide plates 303 support the connector without affecting the support of the connector), and can push the connector to move in the left and right directions when they are relatively close.

[0063] When in use, the push plate 602 and the push rod 302 and other structures can drive the connector to rise to achieve upper and lower conduction to complete the comprehensive test. The push rod 302, the slide plate 303 and the pull rope 304 and other structures can drive the slide plates 303 on both sides of the front and back to move closer to the middle to achieve the centering of the connector along the front and back direction and limit it. The working process and effect of this part are the same as those in the second embodiment, and will not be repeated here. The difference is that when the push plate 602 drives the lower test module 5 and the push rod 302 (two columns and three rows) to rise synchronously, the pull rope 304 is gradually released relative to the push rod 302. At this time, the push rod 302 in the middle row first drives the corresponding slide plate 303 to rotate 90 degrees through the arc segment 3081 and the slider 307, and then all the push rods 302 (two columns and three rows) rise synchronously. At this time, the slide plates 303 on the front and back sides hold up the connector and move closer to the middle, and the slide plates 303 on the left and right sides also move closer to the middle, so as to achieve the centering of the connector in the front and back direction and the left and right direction.

[0064] In the second embodiment, the centering of the connector in the front-to-back direction can be achieved, but there is still a lack of limiting process in the left-to-right direction of the connector when it moves with the conveyor belt 202, so that the connector may still have deviations in the left-to-right direction relative to the upper test module 4 and the lower test module 5, thereby affecting the overall test accuracy and having certain usage limitations.

[0065] Compared with the second embodiment, through the coordination of the arc segment 3081, the slider 307, the nesting 301 and the top rod 302 and other structures, the middle top rod 302 is first rotated 90 degrees and then moves synchronously with the front and rear top rods 302, so that when the subsequent slide plate 303 slides relative to the top rod 302, the slide plates 303 on the front and rear sides can be closed toward the middle along the front-to-back direction, and the slide plates 303 on the left and right sides can be closed toward the middle along the left-to-right direction, thereby realizing the respective centering and limiting of the connector in the front-to-back direction and the left-to-right direction, ensuring the precise correspondence between the connector and the upper test module 4 and the lower test module 5, and further ensuring the overall test accuracy.

[0066] The overall solution is combined with the sliding of the slide plate 303 relative to the top rod 302. The initial arrangement of the middle slide plate 303 relative to the top rod 302 (when not rotated 90 degrees) remains parallel to the slide plates 303 on the front and rear sides, and can move smoothly and synchronously with the conveyor belt 202 without affecting the movement of the conveyor belt 202 along the roller 201, thereby meeting more requirements in actual use.

[0067] Embodiment 4:

[0068] See also Figures 1 to 10 An embodiment of the present invention provides a method for testing a connector of a memory card. The method adopts any one of the testing devices in embodiments one to three, and therefore also has corresponding beneficial effects.

[0069] Specifically, first, the conveying component 2 starts to drive the connector to move through the conveyor belt 202, and stops moving when it moves to the bottom of the upper test module 4; then the control component 6 starts to drive the lower test module 5 to rise, and after contacting the corresponding adjustment component 3, drives the lower test module 5 and the corresponding adjustment component 3 to rise synchronously; then the lower test module 5 and the corresponding adjustment component 3 synchronously contact the bottom surface of the connector, and push the connector to rise vertically so that the top surface of the connector can contact the upper test module 4, and finally the upper test module 4 and the lower test module 5 are both in contact with the connector to form conduction, thereby completing the comprehensive test.

Claims

1. A memory card connector testing device, comprising a machine tool, characterized in that: The machine tool is provided with a conveying assembly for conveying the connector and a control assembly corresponding to the position of the conveying assembly. The machine tool and the control assembly are respectively provided with an upper test module and a lower test module for testing the connector. The conveying assembly includes a conveyor belt for placing the connector, and the conveyor belt is provided with a plurality of adjustment assemblies arranged in a rectangular array. Starting the control assembly can drive the lower test module and the corresponding adjustment assembly to rise synchronously relative to the conveyor belt, and then drive the connector to rise and contact the upper test module. The adjustment assembly comprises a nest fixedly mounted on the conveyor belt, wherein a push rod is slidably mounted inside the nest along the axial direction of the nest; The conveying assembly also includes two rollers rotatably mounted on the machine tool, a motor drivingly connected to one of the rollers is fixedly mounted on the machine tool, and a conveyor belt is arranged on the two rollers and a through hole is opened on the surface of the conveyor belt for the lower test module to pass through; The outer surface of the roller shaft is penetrated by a plurality of avoidance grooves corresponding to the number of rows of push rods, and the depth of the avoidance grooves relative to the roller shaft is greater than or equal to the length of the push rod protruding from the conveyor belt; The tops of the mandrels on both the front and rear sides are slidably mounted with limit assemblies; when the mandrel rises relative to the conveyor belt, the limit assemblies on the front and rear sides can be relatively close; The limit assembly includes a slide plate that is slidably matched with the push rod and a pull rope that is fixedly connected to the conveyor belt. The pull rope is inserted from the bottom surface of the push rod and is fixedly connected to the slide plate. A spring is fixedly installed between the slide plate and the push rod, and a placement groove for placing the spring and the pull rope is provided between the slide plate and the push rod. The portion of the pull rope extending from the bottom surface of the top rod to the conveyor belt is in the same plane as the top rod and the avoidance groove as a whole, so that when the pull rope moves with the conveyor belt and the top rod, it can pass through the avoidance groove.

2. The memory card connector testing device according to claim 1, characterized in that: The control component comprises a cylinder fixedly connected to the machine tool, and a push plate for arranging the lower detection module is fixedly installed on the output shaft of the cylinder, and the push plate corresponds to part of the push rod in the upper and lower directions.

3. The memory card connector testing device according to claim 1 or 2, characterized in that: The nesting and the end of the push rod away from the control component are both made of magnetic material, and the magnetic poles of the two are arranged in opposite directions, so that the nesting can correspond to the end of the push rod away from the control component.

4. A method for testing a connector of a memory card, using the testing device according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, start the conveying assembly to drive the connector to move through the conveyor belt, and stop moving when it moves to the bottom of the upper test module; S2, starting the control component to drive the lower test module to rise, and after contacting the corresponding adjustment component, drive the lower test module and the corresponding adjustment component to rise synchronously, so that the lower test module and the corresponding adjustment component are in synchronous contact with the bottom surface of the connector; S3, the control component continues to start, which can push the connector up so that the top surface of the connector contacts the upper test module, and then both the upper test module and the lower test module contact the connector to complete the test.

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