A PLC module detection cabinet

Abstract

The utility model discloses a PLC module detection cabinet, including a plurality of test fixture, a plurality of detection instrument and the handling robot for to test fixture go up and down material, every test fixture is electrically connected with a detection instrument, the test fixture includes test platform, the upper test module of being located test platform top, the lower test module of being located test platform below, the side test module of being located test platform outer side, be used for driving test platform translation access drive module and be used for the angle positioning module of positioning PLC module on test platform, access drive module is used for driving test platform to stretch out to be close to handling robot, and be used for driving test platform to retract to supply upper test module, lower test module, side test module carries out the test to PLC module. The utility model effectively guarantees product yield, reduces the labor, improves test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PLC module testing technology, and in particular to a PLC module testing cabinet. Background Technology

[0002] PLC modules play an indispensable role in the control of automated equipment. During operation, no faults can be tolerated. At best, frequent shutdowns and errors will affect the production efficiency of automated equipment; at worst, it will cause the automated equipment to malfunction and cause internal collisions.

[0003] In existing technologies, basic functional testing of PLC modules before shipment is mainly conducted manually by inserting wires and performing random functional checks. This method is inefficient and carries a high risk of missed or false positives. Furthermore, the complexity of PLC modules, the numerous input / output ports, and the lengthy testing time make it difficult for manual labor to handle. Therefore, to improve quality control of PLC modules before shipment, an automated PLC module testing cabinet is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a PLC module testing cabinet that effectively ensures product yield, reduces labor costs, and improves testing efficiency.

[0005] To achieve the above objectives, the following technical solution is adopted: A PLC module testing cabinet includes several test fixtures, several testing instruments, and a handling robot for loading and unloading the test fixtures; each test fixture is electrically connected to a testing instrument; the test fixture includes a test platform, an upper test module located above the test platform, a lower test module located below the test platform, a side test module located on the outer side of the test platform, an entry / exit drive module for driving the test platform to translate, and an angle positioning module for positioning the PLC module on the test platform; the entry / exit drive module is used to drive the test platform to extend to approach the handling robot, and to drive the test platform to retract so that the upper test module, lower test module, and side test module can test the PLC module.

[0006] Preferably, the upper test module includes an upper mounting plate, a plurality of upper probes disposed on the upper mounting plate, and an upper test drive component for driving the upper mounting plate to descend closer to or rise away from the PLC module; the lower test module includes a lower mounting plate, a plurality of lower probes disposed on the lower mounting plate, and a lower test drive component for driving the lower mounting plate to rise closer to or descend away from the PLC module; the side test module includes a side mounting plate, a plurality of side probes disposed on the side mounting plate, and a side test drive component for driving the side mounting plate to translate closer to or away from the PLC module.

[0007] Preferably, the upper probe, lower probe, and side probe are all elastic probes.

[0008] Preferably, the test platform has a rectangular structure; the corner positioning module is located on the outer side of one corner of the test platform, and a reference positioning block is provided at the top of each of the other three corners of the test platform; the corner positioning module is used to push the PLC module toward the reference positioning block to achieve positioning.

[0009] Preferably, the corner positioning module includes a corner positioning block and a corner positioning drive for driving the corner positioning block to push the PLC module; the front end face of the corner positioning block has a slot that matches the outer side of the corner of the PLC module.

[0010] Preferably, the entry / exit drive module includes at least one entry / exit guide assembly, an entry / exit drive seat disposed on the entry / exit guide assembly, and an entry / exit drive component for driving the entry / exit drive seat to move through the entry / exit guide assembly; the test platform and the angular positioning module are both installed on the top of the entry / exit drive seat.

[0011] Preferably, at least one of the in-and-out guide components has a buffer limiter on each of its two outer ends to limit the extension and retraction stroke of the in-and-out drive seat.

[0012] Preferably, the handling robot includes a six-axis robot body and at least one gripper module disposed at the end of the six-axis robot body; the gripper module includes a gripper, an opening and closing drive for driving the gripper to open and close, and a gripper extension and retraction drive for driving the gripper to extend or retract.

[0013] Preferably, the transport robot further includes a transport translation drive module located at the bottom of the six-axis robot body; the transport translation drive module is used to drive the six-axis robot body to translate, so as to load and unload several test fixtures one by one.

[0014] Preferably, the transport translation drive module includes at least one transport translation guide assembly, a transport base connected between the transport translation guide assembly and the six-axis robot body, and a transport translation drive component for driving the transport base to move via the transport translation guide assembly.

[0015] By adopting the above solution, the beneficial effects of this utility model are: This utility model provides a PLC module testing cabinet, which automatically loads and unloads materials by setting up a handling robot, and can integrate multiple testing functions into the testing fixture and testing instruments. Through the coordinated operation of the testing fixture and testing instruments, automatic plug-in and unplug testing is achieved, which effectively ensures product yield, reduces labor, and improves testing efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the testing fixture of this utility model; Figure 3 This is a perspective view of the upper test module, lower test module, and side test module of this utility model; Figure 4 This is a perspective view of the testing platform, entry / exit drive module, and corner positioning module of this utility model; Figure 5 This is a perspective view of the handling robot of this utility model; Figure 6 This is a perspective view of the gripper module of this utility model; The following are explanations of the labels in the attached diagram: 1—Test fixture, 2—Testing instrument 3—Transportation robot, 4—Reference positioning block 5—PLC module, 11—Test platform 12—Upper test module, 13—Lower test module 14—Side test module, 15—Inlet / outlet drive module 16—Angle positioning module; 31—Six-axis robot body. 32—Gripper module, 33—Transfer and translation drive module, 121—Upper mounting plate, 122—Upper probe, 123—Upper test driver, 131—Lower mounting plate 132—Lower probe, 133—Lower test drive unit 141—Side mounting plate, 142—Side probe, 143—Side test drive component, 151—Inlet / outlet guide assembly, 152—Enter / exit the drive unit; 153—Enter / exit the drive component. 154—Buffer limiting component, 161—Corner positioning block, 162—Angle positioning drive component, 321—Gripper, 322—Opening and closing drive component; 323—Gripper extension and retraction drive component. 331—Transfer and translation guide assembly; 332—Transfer base. 333—Transfer and translation drive component. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0020] Reference Figures 1 to 6 As shown, this utility model provides a PLC module testing cabinet, including several test fixtures 1, several testing instruments 2, and a handling robot 3 for loading and unloading the test fixtures 1; each test fixture 1 is electrically connected to a testing instrument 2; the test fixture 1 includes a test platform 11, an upper test module 12 disposed above the test platform 11, a lower test module 13 disposed below the test platform 11, a side test module 14 disposed on the outer side of the test platform 11, an entry / exit drive module 15 for driving the test platform 11 to translate, and an angle positioning module 16 for positioning the PLC module 5 on the test platform 11; the entry / exit drive module 15 is used to drive the test platform 11 to extend to approach the handling robot 3, and to drive the test platform 11 to retract so that the upper test module 12, lower test module 13, and side test module 14 can test the PLC module 5.

[0021] The PLC module 5 has signal input / output points on three surfaces: top, bottom, and side. The probes of the upper test module 12, lower test module 13, and side test module 14 are connected to the contacts of the PLC module 5 to achieve communication and power supply. The upper test module 12 includes an upper mounting plate 121, several upper probes 122 mounted on the upper mounting plate 121, and an upper test drive component 123 for driving the upper mounting plate 121 to descend closer to or rise away from the PLC module 5. The lower test module 13 includes a lower mounting plate 131, several lower probes 132 mounted on the lower mounting plate 131, and a lower test drive component 133 for driving the lower mounting plate 131 to rise closer to or fall away from the PLC module 5. The side test module 14 includes a side mounting plate 141, several side probes 142 mounted on the side mounting plate 141, and a side test drive component 143 for driving the side mounting plate 141 to translate closer to or away from the PLC module 5. Specifically, the upper test drive component 123, the lower test drive component 133, and the side test drive component 143 are all cylinders.

[0022] The upper probe 122, lower probe 132, and side probe 142 are all elastic probes, connected to the contacts of the PLC module 5, ensuring that the contacts will not be damaged by overvoltage during connection. Furthermore, the elastic probe includes a fixed part, a telescopic part, and an elastic element disposed between the fixed part and the telescopic part, wherein the telescopic part is used to contact the PLC module 5. The upper probe 122, lower probe 132, and side probe 142 are electrically connected to the testing instrument 2 via anti-interference lines.

[0023] The test platform 11 has a rectangular structure; the corner positioning module 16 is located on the outer side of one corner of the test platform 11, and a reference positioning block 4 is provided at the top of each of the other three corners of the test platform 11; the corner positioning module 16 is used to push the PLC module 5 towards the reference positioning block 4 to achieve positioning. Further, the corner positioning module 16 is located on the outer side of one corner of the test platform 11 opposite to the side test module 14, and the corner positioning module 16 pushes the PLC module 5 into contact with the side test module 14 while positioning.

[0024] The corner positioning module 16 includes a corner positioning block 161 and a corner positioning drive component 162 for driving the corner positioning block 161 to push the PLC module 5; the front end face of the corner positioning block 161 has a slot that matches the outer corner of the PLC module 5. Specifically, the corner positioning drive component 162 is a cylinder.

[0025] In test fixture 1, the entry / exit drive module 15 drives the test platform 11 to extend to its outermost end for loading and unloading by the handling robot 3, and drives the test platform 11 to retract to its inner end for testing. The entry / exit drive module 15 includes at least one entry / exit guide assembly 151, an entry / exit drive seat 152 disposed on the entry / exit guide assembly 151, and an entry / exit drive component 153 for driving the entry / exit drive seat 152 to move through the entry / exit guide assembly 151; the test platform 11 and the angle positioning module 16 are both mounted on the top of the entry / exit drive seat 152. At least one of the entry / exit guide assemblies 151 has a buffer limiting component 154 on each of its two outer ends to limit the extension / retraction stroke of the entry / exit drive seat 152. Specifically, there are three entry / exit guide assemblies 151, each including a slide rail and a slider, and the entry / exit drive component 153 is a rodless cylinder.

[0026] The handling robot 3 includes a six-axis robot body 31 and at least one gripper module 32 located at the end of the six-axis robot body 31. The gripper module 32 includes a gripper 321, an opening / closing drive 322 for driving the gripper 321 to open and close, and a gripper extension / retraction drive 323 for driving the gripper 321 to extend or retract. In one specific embodiment, two gripper modules 32 are provided, with a connecting plate at the end of the six-axis robot body 31 and one gripper module 32 at each end of the connecting plate. Specifically, the opening / closing drive 322 and the gripper extension / retraction drive 323 are both cylinders. By providing two gripper modules 32 on the handling robot 3, two PLC modules 5 can be gripped simultaneously for each loading and unloading operation before transfer, improving loading and unloading efficiency.

[0027] The transport robot 3 also includes a transport translation drive module 33 located at the bottom of the six-axis robot body 31. The transport translation drive module 33 is used to drive the six-axis robot body 31 to translate, so as to load and unload several test fixtures 1 one by one. In a specific embodiment, there are 6 test fixtures 1, arranged in two parallel layers, that is, each layer includes 3 test fixtures 1. The detection instruments 2 corresponding to the upper layer test fixtures 1 are set above the test fixtures 1, and the detection instruments 2 corresponding to the lower layer test fixtures 1 are set below the test fixtures 1. The transport translation drive module 33 is set along the arrangement direction of the 3 test fixtures 1 in the same layer, so as to facilitate loading and unloading of each test fixture 1 one by one. The transport robot 3 automatically picks up the PLC module 5 from the external logistics line and puts it into the test fixture 1. The 6 test fixtures 1 are tested at the same time to shorten the average test time of each PLC module 5. It can realize continuous testing without human intervention, determine whether the PLC module 5 is defective or normal, and then transfer it to the external logistics line according to the test results.

[0028] The transport translation drive module 33 includes at least one transport translation guide assembly 331, a transport base 32 connected between the transport translation guide assembly 331 and the six-axis robot body 31, and a transport translation drive component 333 for driving the transport base 332 to move via the transport translation guide assembly 331. Specifically, there are two transport translation guide assemblies 331, each of which includes a slide rail and two sliders, and the transport translation drive component 33 is a motor.

[0029] By integrating various testing functions into the testing instrument 2, comprehensive testing of the input / output and power supply points of the PLC module 5 can be performed. In one specific embodiment, the testing instrument 2 is specially customized by the PLC module 5 manufacturer and has a PLC module 5 power supply port, IO input / output point test port, protocol communication test port, etc. After connection, it can automatically perform functional tests, power supply tests, stability tests, etc. on the PLC module 5.

[0030] The workflow of this utility model is as follows: 1) The handling robot 3 picks up the PLC module 5 from the external logistics line and transfers it to the test fixture 1. At the same time, the drive module 15 drives the test platform 11 to extend to the outermost end to connect the PLC module 5. 2) The corner positioning module 16 positions the PLC module 5 on the test platform 11, and then the in-and-out drive module 15 drives the test platform 11 to retract to the inner end; 3) The upper test module 12, lower test module 13, and side test module 14 successively connect to the contacts of PLC module 5 to start the functional test; 4) After the test is completed, the upper test module 12, the lower test module 13, and the side test module 14 are reset, the entry and exit drive module 15 drives the test platform 11 to extend to the outermost end again, and the corner positioning module 16 is reset. 5) The handling robot 3 grabs the PLC module 5 on the test fixture 1 and transfers it to the external logistics line.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the utility model and are not intended to limit the implementation of this utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A PLC module testing cabinet, characterized in that, The system includes several test fixtures, several testing instruments, and a handling robot for loading and unloading the test fixtures. Each test fixture is electrically connected to a testing instrument. The test fixture includes a test platform, an upper test module located above the test platform, a lower test module located below the test platform, a side test module located on the outer side of the test platform, an entry / exit drive module for driving the test platform to translate, and an angle positioning module for positioning the PLC module on the test platform. The entry / exit drive module is used to drive the test platform to extend to approach the handling robot and to drive the test platform to retract so that the upper test module, lower test module, and side test module can test the PLC module.

2. The PLC module testing cabinet according to claim 1, characterized in that, The upper test module includes an upper mounting plate, a plurality of upper probes disposed on the upper mounting plate, and an upper test drive component for driving the upper mounting plate to descend closer to or rise away from the PLC module; the lower test module includes a lower mounting plate, a plurality of lower probes disposed on the lower mounting plate, and a lower test drive component for driving the lower mounting plate to rise closer to or descend away from the PLC module; the side test module includes a side mounting plate, a plurality of side probes disposed on the side mounting plate, and a side test drive component for driving the side mounting plate to translate closer to or away from the PLC module.

3. The PLC module testing cabinet according to claim 2, characterized in that, The upper probe, lower probe, and side probe are all elastic probes.

4. The PLC module testing cabinet according to claim 1, characterized in that, The test platform has a rectangular structure; the corner positioning module is located on the outer side of one corner of the test platform, and a reference positioning block is provided at the top of each of the other three corners of the test platform; the corner positioning module is used to push the PLC module toward the reference positioning block to achieve positioning.

5. The PLC module testing cabinet according to claim 4, characterized in that, The corner positioning module includes a corner positioning block and a corner positioning drive for driving the corner positioning block to push the PLC module; the front end face of the corner positioning block has a slot that matches the outer corner of the PLC module.

6. The PLC module testing cabinet according to claim 1, characterized in that, The entry / exit drive module includes at least one entry / exit guide component, an entry / exit drive seat disposed on the entry / exit guide component, and an entry / exit drive component for driving the entry / exit drive seat to move through the entry / exit guide component; the test platform and the angular positioning module are both installed on the top of the entry / exit drive seat.

7. The PLC module testing cabinet according to claim 6, characterized in that, At least one of the aforementioned entry / exit guide components has a buffer limiter on each of its two outer ends to limit the extension / retraction stroke of the entry / exit drive seat.

8. The PLC module testing cabinet according to claim 1, characterized in that, The handling robot includes a six-axis robot body and at least one gripper module located at the end of the six-axis robot body; the gripper module includes a gripper, an opening and closing drive for driving the gripper to open and close, and a gripper extension and retraction drive for driving the gripper to extend or retract.

9. The PLC module testing cabinet according to claim 8, characterized in that, The transport robot also includes a transport translation drive module located at the bottom of the six-axis robot body; the transport translation drive module is used to drive the six-axis robot body to translate, so as to load and unload several test fixtures one by one.

10. The PLC module testing cabinet according to claim 9, characterized in that, The transport translation drive module includes at least one transport translation guide assembly, a transport base connected between the transport translation guide assembly and the six-axis robot body, and a transport translation drive component for driving the transport base to move via the transport translation guide assembly.

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