An ICT online testing station

Abstract

The present invention proposes an ICT online testing workstation, comprising a machine, wherein a testing instrument is provided inside the machine, and an adjustable conveying device is provided on the machine, wherein the adjustable conveying device comprises two sets of base plates, wherein a conveyor belt assembly is provided across the base plates, and a jacking device is provided at the lower portion of the base plates, and the jacking device drives the base plates to move up and down; supporting flanges are provided on opposite sides of the conveyor belt assembly, and the supporting flanges are used to support the PCB board to be tested; a floating fixture is provided at the lower portion of the conveyor belt assembly, and this workstation is provided with a liftable conveyor line, and the PCB board on the conveyor line can be aligned with the detection fixture by lifting the PCB board, and the downward pressing stroke can be controlled by pressing down the electric cylinder, and a floating fixture is provided, and the fixture box can be pulled out to adjust the internal connection or maintenance, and the fixture box is driven up and down by horizontal pushing to control the connection and separation of the fixture box and the detection instrument, thereby realizing real-time online testing.

Description

Technical Field

[0001] The present invention relates to the field of design and testing equipment, and in particular to an ICT testing station. Background Art

[0002] ICT testing primarily uses test probes to contact test points on the PCB layout to detect open and short circuits on the PCBA, as well as the soldering conditions of all components. This testing can be categorized into open circuit testing, short circuit testing, resistance testing, capacitance testing, diode testing, transistor testing, field-effect transistor testing, IC pin testing (TestJetConnect Check BasicScan Bist), and other common and special component faults such as missing or incorrect installation, parameter value deviation, solder joint continuity, and circuit board open and short circuits. The user is then accurately informed of the component fault or the location of the open or short circuit via a printer or screen display. Prior art, such as the utility model patent publication number CN 203054135 U, which discloses an ICT online tester with a defective product filter, utilizes a streamlined system for online testing. However, the method for achieving real-time terminal insertion and separation in the fixture box is not described. Furthermore, due to the dense number of ICT test pins, real-time insertion and separation, as well as continuous testing, are difficult to implement. Consequently, manual processing is typically performed during machine downtime, resulting in low efficiency. (CN 209559940) U disclosed an ICT online test fixture that has two sets of upper and lower springs, which has poor stability and is prone to deviation and needle breakage. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes an ICT online testing station, including a machine, a testing instrument is provided inside the machine, and a

[0004] An adjustable conveying device includes two sets of base plates, a conveyor belt assembly is arranged across the base plates, and a lifting device is provided at the bottom of the base plates, and the lifting device drives the base plates to move up and down; support flanges are provided on opposite sides of the conveyor belt assembly, and the support flanges are used to support the PCB board to be tested;

[0005] A floating fixture is provided at the lower portion of the conveyor belt assembly, a first probe plate is provided on the machine platform below the floating fixture, a plurality of first plug-in terminals are provided on the first probe plate, and the first plug-in terminals are electrically connected to the test instrument; a horizontal pushing device is connected to the floating fixture;

[0006] The floating fixture includes a detection box, a second plug-in terminal corresponding to the first plug-in terminal is provided at the bottom of the detection box, and the horizontal pushing device pushes the floating fixture downward so that the first plug-in terminal is plugged into the second plug-in terminal;

[0007] The floating fixture includes a detection box, a second plug-in terminal corresponding to the first plug-in terminal is provided at the bottom of the detection box, a plurality of detection pins are provided on the top of the detection box, and the detection pins are electrically connected to the corresponding second plug-in terminals inside the detection box. The upper part of the detection box is elastically connected to a carrier plate, and the carrier plate is densely covered with sockets, and the detection probes correspond to the sockets;

[0008] A pressing device is provided above the conveyor belt, and a pressing plate is connected to the output end of the pressing device. The pressing device drives the pressing plate to press down on the PCB to be tested, and presses the carrier plate downward so that the pins pass through the through-holes and align with the points on the PCB to be tested.

[0009] Preferably, the lifting device is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0010] Preferably, a plurality of first guide posts are provided on the top of the carrier plate and the detection box.

[0011] Preferably, a plurality of springs are provided between the carrier plate and the top of the test box.

[0012] Preferably, a plurality of second guide columns are provided on the top of the carrier plate.

[0013] Preferably, the horizontal pushing device also includes two groups of guide assemblies fixed on the machine platform, the guide assemblies include a vertical plate, a long groove is provided on one side of the vertical plate, and a vertical sliding block is vertically slidably connected to the other side, a first guide plate is inserted into the long groove, and the first guide plate is provided with an arc groove with an end inclined upward, the first guide plate ends of the guide assemblies on both sides are connected by a connecting plate, and the connecting plate is connected to a horizontal cylinder; a second guide plate is fixed on the vertical plate, and a plurality of vertical grooves are provided on the second guide plate, and a bottom section of the arc groove corresponds to the vertical groove, and a plurality of rollers are provided on the vertical slider, and the rollers correspond to the arc groove and the vertical groove and extend into the arc groove and the vertical groove at the same time.

[0014] Preferably, the vertical slide is connected to the first vertical plate through a slide rail and slide groove mechanism.

[0015] Preferably, a pulling groove is provided on the vertical sliding block, and a protrusion is provided on the bottom of the detection box, and the protrusion extends into the pulling groove.

[0016] Preferably, the pressing device is an electric cylinder.

[0017] Preferably, the conveying assembly includes two groups of fixed conveyor belts and a movable conveyor belt, one section of the fixed conveyor belt and the movable conveyor belt is pressed on the supporting convex edge, and connecting blocks are fixed at both ends of the bottom of the movable conveyor belt, and the connecting blocks are respectively connected to two groups of screw modules, and the screw modules drive the movable conveyor belt to approach or move away from the fixed conveyor belt.

[0018] The beneficial effects of the ICT online testing station proposed in this solution are as follows: this station is equipped with a liftable conveyor line. By lifting the PCB board, the PCB board on the conveyor line can be aligned with the detection fixture, and the downward pressure stroke can be controlled by the downward pressure of the electric cylinder. In addition, a floating fixture is provided, and the fixture box can be pulled out to adjust the internal connection or maintenance. The fixture box can be adjusted up and down by horizontal pushing to control the connection and separation of the fixture box and the detection instrument, thereby realizing real-time online testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 is a schematic diagram of the adjustable conveying device of the present invention;

[0022] Figure 3 is a schematic diagram of a floating fixture of the present invention;

[0023] Figure 4 It is a schematic diagram of the assembly of the floating fixture and the adjustable conveying device of the present invention;

[0024] Figure 5 This is a schematic diagram of the interior of the floating fixture of the present invention;

[0025] Figure 6 A side view of the floating fixture of the present invention;

[0026] Figure 7 This is a bottom schematic diagram of the floating fixture of the present invention;

[0027] Figure 8 is a schematic diagram of a horizontal propulsion device of the present invention;

[0028] Figure 9 Schematic diagram of the installation of the column and the first guide plate of the present invention;

[0029] Among them, 1. Machine; 2. Adjustable conveying device; 3. Bottom plate; 4. Movable conveyor belt; 5. Support convex edge; 6. Fixed conveyor belt; 7. Screw module; 8. Connecting block; 9. Floating fixture; 10. First probe board; 11. First plug-in terminal; 12. Horizontal pushing device; 13. Detection box; 14. Second plug-in terminal; 15. Carrier board; 16. Spring; 17. Socket; 18. Detection pin; 19. First guide column; 20. Second guide column; 21. Motor; 22. L-shaped block; 23. Vertical plate; 24. Long groove; 25. Vertical slider; 26. First guide plate; 27. Arc groove; 28. Connecting plate; 29. ​​Horizontal cylinder; 30. Second guide plate; 31. Vertical groove; 32. Roller; 33. Slide rail and slide groove mechanism; 34. Pressing device; 35. Pressing plate; 36. PCB board to be tested. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1 As shown, the present invention proposes an ICT online testing station, including a machine 1, wherein the machine 1 is provided with a testing instrument, and the machine 1 is provided with a

[0032] like Figure 2 As shown, an adjustable conveying device 2 is shown, which includes two groups of base plates 3, a conveyor belt assembly is arranged across the base plates 3, and a lifting device is provided at the lower part of the base plate 3, which drives the base plate 3 to move up and down; support flanges 5 are provided on opposite sides of the conveyor belt assembly, and the support flanges 5 are used to support the PCB board 36 to be tested; specifically, the conveying assembly includes two groups of fixed conveyor belts 6 and a movable conveyor belt 4, and the two groups of structures respectively include a driving motor 21 and a driving wheel. The movable conveyor belt 4 and the fixed conveyor belt 6 are driven to rotate by the driving motor 21 and the driving wheel respectively, and the PCB board 36 to be tested is across the movable conveyor belt 4 and the fixed conveyor belt 6. In order to improve the supporting performance, a supporting flange 5 is provided at the lower part of the movable conveyor belt 4 and the fixed conveyor belt 6, and the two ends of the PCB board are pressed on the supporting flange 5, and a lifting device is provided at the lower part of the base plate 3. The lifting device can be a pneumatic cylinder or an electric cylinder, which can adjust the height of the adjustable conveying device 2.

[0033] like Figure 2As shown, the conveyor belt assembly is provided with a blocking mechanism, which includes a motor 21. The output end of the motor 21 is connected to an L-shaped block 22. The L-shaped block 22 is used to limit the movement of the PCB board. Clicking and rotating the L-shaped block 22 drives the end of the rotator to press against one side of the PCB board to limit the PCB board from continuing to move with the conveyor belt. That is, when the PCB board is transported on the conveyor belt, it reaches the detection position and is stopped by the blocking mechanism. The bottom plate 3 is then driven down by the lifting device. After the PCB board is placed on the lower detection fixture, the movable conveyor belt 4 can move. That is, the bottom ends of the movable conveyor belt 4 are fixed with connecting blocks 8. The connecting blocks 8 are respectively connected to two sets of screw modules 7. The screw modules 7 drive the movable conveyor belt 4 to move closer to or away from the fixed conveyor belt 6. The screw module 7 controls the entire set of movable conveyor belts 4 to move away from the fixed conveyor belt 6, that is, the PCB board falls from the supporting flange 5 to the floating fixture 9 at the bottom.

[0034] like Figure 3 、 Figure 4 、 Figure 7 As shown, a floating jig 9 is provided at the lower part of the conveyor belt assembly, and a first probe plate 10 is provided on the machine 1 at the lower part of the floating jig 9. A plurality of first plug-in terminals 11 are provided on the first probe plate 10, and the first plug-in terminals 11 are electrically connected to the test instrument; a horizontal pushing device 12 is connected to the floating jig 9, and the floating jig 9 includes a detection box 13, and a second plug-in terminal 14 corresponding to the first plug-in terminal 11 is provided at the bottom of the detection box 13. The horizontal pushing device 12 pushes the floating jig 9 in the horizontal direction, and the floating jig 9 moves downward so that the first plug-in terminal 11 is plugged into the second plug-in terminal 14;

[0035] A number of detection pins 18 are provided on the top of the detection box 13. The number of detection pins 18 is large and densely distributed on the top of the detection box 13. In order to keep the picture clear, only a few are shown in the figure. The detection pins 18 are electrically connected to the corresponding second plug terminals 14 in the detection box 13. The upper part of the detection box 13 is elastically connected to a carrier board 15, and the carrier board 15 is densely distributed with sockets 17 (only part of it is shown in the figure). The detection probe corresponds to the socket 17, and the socket 17 corresponds to the detection point of the PCB board 36 to be tested. The pin passes through the socket 17 and is inserted into the PCB board 36 to be tested. The detection of different functions is realized by conducting the first plug terminal 11, the second plug terminal 14 and the detection pin 18.

[0036] Its specific working method is as follows: the PCB board is transported on the conveyor belt. After being stopped by the blocking mechanism, the lifting device drives the adjustable conveying device 2 to descend, causing the PCB board to fall onto the carrier plate 15 of the detection box 13. Because a spring 16 is provided between the lower part of the carrier plate 15 and the top of the detection box 13, at this time, the PCB board 36 to be tested has not yet been plugged into the detection pin 18. The carrier plate 15 and the top of the detection box 13 are provided with a plurality of first guide posts 19 to ensure that the position between the carrier plate 15 and the detection box 13 is stable after the carrier plate 15 is pressed down, and to prevent the spring 16 from connecting and causing the carrier plate 15 to deviate laterally when pressed down, causing the pin to be unable to align. The top of the carrier plate 15 is provided with a plurality of second guide posts 20. The second guide posts 20 are used to align the PCB board. The PCB board also has holes. Only after aligning with the second guide posts 20 can the accuracy of the PCB board's position be determined, and the stability of the plug-in can be ensured. At this time, the product is in place, and it is necessary to push the first plug terminal 11 and the second plug terminal 14 to plug and conduct.

[0037] Specifically: Figure 8 、 Figure 9As shown, the horizontal pushing device 12 also includes two sets of guide assemblies fixed on the machine 1, and the guide assemblies include a vertical plate 23, a long groove 24 is provided on one side of the vertical plate 23, and a vertical slider 25 is vertically slidably connected to the other side. A first guide plate 26 is inserted into the long groove 24, and the first guide plate 26 is provided with an arc groove 27 with an upwardly inclined end. The ends of the first guide plates 26 of the guide assemblies on both sides are connected by a connecting plate 28, and the connecting plate 28 is connected to a horizontal cylinder 29; the vertical plate 23 A second guide plate 30 is fixed on the upper portion, and a plurality of vertical grooves 31 are provided on the second guide plate 30. A section of the bottom of the arc-shaped groove 27 corresponds to the vertical groove 31. A plurality of rollers 32 are provided on the vertical slider 25. The rollers 32 correspond to the arc-shaped groove 27 and the vertical groove 31 and extend into the arc-shaped groove 27 and the vertical groove 31 at the same time. The vertical slider 25 is connected to the first vertical plate 23 through a slide rail and slide groove mechanism 33. A twitching groove is provided on the vertical slider 25. A protrusion is provided at the bottom of the detection box 13. The protrusion extends into the pulling groove, and the detection box 13 can be pulled out along the pulling groove on the vertical slider 25 for checking the internal pin situation or maintenance. After the pull-in, when the horizontal cylinder 29 is extended, it can push the first guide plate 26 to move in the long groove 24, and the roller 32 of the vertical slider 25 can move along the arc groove 27. At the same time, the vertical groove 31 corresponding to the arc groove 27 limits the horizontal trajectory of the roller 32, thus realizing the movement trajectory in the vertical direction by pushing in the horizontal direction. When the detection box 13 is pulled downward, the second plug-in terminal 14 at the lower part of the detection box 13 is plugged into the first plug-in terminal 11. In addition, since more performances need to be tested, multiple groups of first plug-in terminals 11 and second plug-in terminals 14 are provided, which are distributed at the lower part of the detection box 13. When plugged in, the force is more evenly distributed, and the phenomenon of some positions not being fully plugged in will not occur.

[0038] The PCB board 36 to be tested is pressed down by the electric cylinder set on the top. The output end of the electric cylinder is connected to the pressure plate 35. The pressure plate 35 also has a guide column for aligning with the carrier board 15 to ensure that it does not deviate from the carrier board 15 when pressed down. The electric cylinder pushes the carrier board 15 downward, that is, the spring 16 is compressed, and the detection pin 18 passes through the hole 17 and connects to the PCB board 36 to be tested, so that it can be connected to the detection instrument for detection.

[0039] A pressing device 34 is provided above the conveyor belt, and a pressing plate 35 is connected to the output end of the pressing device 34. The pressing device 34 drives the pressing plate 35 to press down on the PCB board 36 to be tested, and presses the carrier board 15 downward so that the pins pass through the through holes and align with the points on the PCB board 36 to be tested.

Claims

1. An ICT online testing station, comprising a machine platform, wherein a testing instrument is provided inside the machine platform, characterized in that: The machine is provided with An adjustable conveying device, the adjustable conveying device includes two sets of base plates, a conveyor belt assembly is arranged across the base plates, and a lifting device is provided at the lower part of the base plates, the lifting device drives the base plates to move up and down; A supporting convex edge is provided on the opposite side of the conveyor belt assembly, and the supporting convex edge is used to support the PCB board to be tested on the conveyor belt assembly; A floating fixture is provided at the lower portion of the conveyor belt assembly, a first probe plate is provided on the machine platform below the floating fixture, a plurality of first plug-in terminals are provided on the first probe plate, and the first plug-in terminals are electrically connected to the test instrument; a horizontal pushing device is connected to the floating fixture; The floating fixture includes a detection box, a second plug-in terminal corresponding to the first plug-in terminal is provided at the bottom of the detection box, and the horizontal pushing device pushes the floating fixture downward so that the first plug-in terminal is plugged into the second plug-in terminal; The top of the detection box is provided with a plurality of detection pins, which are electrically connected to the corresponding second plug terminals in the detection box. The upper part of the detection box is elastically connected to a carrier board, which is densely covered with sockets, and the detection pins correspond to the sockets; A pressing device is provided above the conveyor belt, and a pressing plate is connected to the output end of the pressing device. The pressing device drives the pressing plate to press down on the PCB to be tested, and presses the carrier plate downward so that the pins pass through the through-holes and align with the points on the PCB to be tested.

2. The ICT online testing station according to claim 1, characterized in that: The lifting device is a pneumatic cylinder, an oil cylinder or an electric cylinder.

3. The ICT online testing station according to claim 1, characterized in that: A plurality of first guide posts are provided on the top of the carrier plate and the detection box, and a plurality of second guide posts are provided on the top of the carrier plate.

4. The ICT online testing station according to claim 1, characterized in that: A plurality of springs are provided between the carrier plate and the top of the detection box.

5. The ICT online testing station according to claim 1, characterized in that: The conveyor belt assembly is provided with a blocking mechanism, which includes a motor. The output end of the motor is connected to an L-shaped block, and the L-shaped block is used to limit the movement of the PCB board.

6. The ICT online testing station according to claim 1, characterized in that: The horizontal pushing device also includes two groups of guide assemblies fixed on the machine platform, the guide assemblies include a vertical plate, a long groove is provided on one side of the vertical plate, and a vertical sliding block is vertically slidably connected to the other side, a first guide plate is inserted into the long groove, and an arc groove with an end inclined upward is provided on the first guide plate, and the ends of the first guide plates of the guide assemblies on both sides are connected by a connecting plate, and a horizontal cylinder is connected to the connecting plate; a second guide plate is fixed on the vertical plate, and a plurality of vertical grooves are provided on the second guide plate, and a bottom section of the arc groove corresponds to the vertical groove, and a plurality of rollers are provided on the vertical slider, and the rollers correspond to the arc groove and the vertical groove and extend into the arc groove and the vertical groove at the same time.

7. The ICT online testing station according to claim 6, characterized in that: The vertical sliding block is connected to the vertical plate through a sliding rail and sliding groove mechanism.

8. The ICT online testing station according to claim 6, characterized in that: The vertical sliding block is provided with a pulling groove, and the bottom of the detection box is provided with a protrusion, which extends into the pulling groove.

9. The ICT online testing station according to claim 1, characterized in that: The pressing device is an electric cylinder.

10. The ICT online testing station according to claim 1, characterized in that: The conveyor belt assembly includes two groups of fixed conveyor belts and a movable conveyor belt. One section of the fixed conveyor belt and the movable conveyor belt is pressed on the supporting convex edge. Connecting blocks are fixed at both ends of the bottom of the movable conveyor belt. The connecting blocks are respectively connected to two groups of screw modules. The screw modules drive the movable conveyor belt to approach or move away from the fixed conveyor belt.

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