A cartridge transport system for ultrasonic scanning

Abstract

This application relates to a chuck transport system for ultrasonic scanning, belonging to the field of ultrasonic scanning technology. It includes a substrate, a conveyor belt, a base, and a controller. A cylinder is fixed to the base, with its piston rod end fixed to a slide. A support platform is fixed to the substrate, and a second cylinder and a sliding drive rod driven by the second cylinder are mounted on the support platform. A locking rod and a push rod are fixed to the drive rod. Multiple locking slots are provided on the side wall of the tilting table, the number and position of which correspond one-to-one with the chuck slots. The front end of the locking rod tapers in thickness and is used to insert into the locking slot. The push rod is used to push the workpiece out of the chuck slot. The solution of this application can reliably remove the workpiece from the chuck frame, avoiding the workpiece being carried out by friction, thus improving reliability. The inlet end of the conveyor belt avoids the vertical movement range of the chuck frame and the workpiece, therefore there are no precision requirements for electrical distance control. Even if the tilting table descends excessively due to equipment failure, it will not damage the workpiece or the conveyor belt.

Description

Technical Field

[0001] This application relates to the field of ultrasonic scanning technology, and in particular to a cartridge transport system for ultrasonic scanning. Background Technology

[0002] Ultrasonic scanning is performed underwater and is currently used in product quality inspection. It can detect flaws in workpieces, and silicon-based materials and circuit boards can also be inspected using ultrasonic scanning. For board-shaped workpieces like circuit boards, they are usually transported in chucks. In the pre-ultrasonic scanning process, the workpieces need to be removed one by one from the chucks and placed on a conveyor belt. Then, a robotic arm grabs the workpieces and moves them to the scanning installation position. The purpose is to place multiple workpieces horizontally and lay them flat. After the workpieces enter the water, they are scanned in batches using ultrasonic scanning.

[0003] An existing invention patent application with publication number CN120793493A discloses a loading and unloading mechanism for an ultrasonic scanning device for sheet-like substrates. The mechanism includes a frame with a feed belt and a transfer belt. A clamping frame for carrying the substrate is transported on the feed belt. A tilting table is located between the feed belt and the transfer belt. A tilting block is rotatably connected to the tilting table, and a tilting frame is fixedly connected to the tilting block. The clamping frame containing the substrate is placed on the feed belt with its opening facing upwards. The feed belt transports the clamping frame to the tilting table, where clamping plates hold the frame. The tilting block tilts the frame upright, and the tilting table descends step by step, while the transfer belt outputs the substrates one by one.

[0004] The aforementioned technologies can enable workpieces to be removed one by one from the jammer and laid on the conveyor belt, but the following problems exist: the conveyor belt moves the workpieces out of the jammer frame through friction. If the workpiece surface is too smooth, the friction is insufficient, making it difficult to remove the workpiece. When the workpiece is thick and its thickness is close to the groove width of the jammer frame, the control of the descent distance of the tilting table is more demanding. If the descent distance is slightly too large, the workpiece will break. If the sensors or motors affecting the descent of the tilting table malfunction or have coordination errors, excessive descent of the workpiece will directly press on the conveyor belt, leading to damage. Summary of the Invention

[0005] This application provides an ultrasonic scanning chuck transport system that can reliably remove workpieces from the chuck frame, and does not have the precision requirements for electrical distance control. Even if the tilting table drops excessively due to equipment failure, it will not damage the workpiece or the conveyor belt.

[0006] This application provides a cartridge transport system for ultrasonic scanning, which adopts the following technical solution:

[0007] An ultrasonic scanning plug transport system includes a base plate, a conveyor belt, a base, and a controller. A slide block is slidably connected to the base in a vertical direction. A geared motor and a rotating platform driven by the geared motor are mounted on the slide block. A plug frame is placed inside the rotating platform. Plug slots for placing workpieces are evenly distributed on the plug frame. The inlet end of the conveyor belt avoids the vertical movement range of the plug frame and workpiece. A cylinder is fixed to the base, and the piston rod end of the cylinder is fixed to the slide block. A support platform is fixed to the base plate. A cylinder is mounted on the support platform, and a drive rod driven by the cylinder is slidably moved. A locking rod and a push rod are fixed to the drive rod. Multiple locking slots are provided on the side wall of the rotating platform. The number and position of the locking slots correspond one-to-one with the plug slots. The front end of the locking rod tapers in thickness. The locking rod is used to insert into the locking slot, and the push rod is used to push the workpiece out of the plug slot.

[0008] By employing the above technical solution, cylinder one slowly shortens, causing the combination of slide, tilting table, and clamping frame to gradually descend. When the workpiece reaches the height position of the push rod, cylinder two extends, and the drive rod moves, causing the locking rod and push rod to move. The locking rod first inserts into the corresponding locking groove to fix the height of the clamping frame, and then the push rod pushes the corresponding workpiece onto the conveyor belt. After completion, cylinder two shortens, the locking rod is pulled out of the locking groove, and cylinder two continues to shorten, repeating the action to complete the sequential feeding of all workpieces.

[0009] Optionally, the bottom of the retainer frame is hollowed out for inserting the top rod, and two support rods for supporting the workpiece are fixed at the bottom of the retainer frame, with the support rods positioned to avoid the top rod.

[0010] By adopting the above technical solution, the bottom structure of the retainer frame is easy to cooperate with the push rod, and the push rod will not interfere with the retainer frame when pushing the workpiece at any height.

[0011] Optionally, the cylinder includes a cylinder body and a piston block slidably connected to the cylinder body. The internal space of the cylinder body below the piston block is a pneumatic chamber. The pneumatic chamber is connected to an inlet pipe and an outlet pipe. A solenoid valve is installed on the inlet pipe, and a solenoid valve and a regulating valve are installed on the outlet pipe.

[0012] By adopting the above technical solution, after the intake pipe is connected to the compressed air source, opening solenoid valve one and closing solenoid valve two allows compressed air to be input into the air pressure chamber, causing the piston block to move upward, thereby driving the slide to move upward. Closing solenoid valve one and opening solenoid valve two allows the air in the air pressure chamber to be forced out from the exhaust pipe under the weight of the slide, tilting platform, and plug frame. By adjusting the opening of the regulating valve, the outflow of gas is restricted, thereby causing the combination of slide, tilting platform, and plug frame to slowly descend. The descent speed is controlled by the regulating valve.

[0013] Optionally, the substrate is fixed with a support frame, and the locking rod passes through the support frame and slides in contact with the support frame.

[0014] By adopting the above technical solution, the locking rod is slidably supported by the support frame, thus preventing the locking rod from bending downwards.

[0015] Optionally, a distance sensor is fixed to the base plate. The detection end of the distance sensor is horizontally positioned and close to the workpiece. The distance sensor avoids the vertical movement range of the jamming frame and the workpiece. The distance sensor is used to detect the workpiece passing by. The distance sensor is electrically connected to the controller and is used to control the action of the second cylinder.

[0016] By adopting the above technical solution, the distance sensor is used to detect the workpiece passing by. The distance sensor is electrically connected to the controller to control the action of the cylinder and realize automatic material pushing. The stopper frame and the workpiece will not collide with the distance sensor when they move downward.

[0017] Optionally, the tilting table is equipped with a clamping cylinder and a sliding clamping plate driven by the clamping cylinder, the clamping plate being directly opposite the outer wall of the plug frame.

[0018] By adopting the above technical solution, the clamping frame is pressed tightly against the other side of the tilting table by the clamping plate, and the clamping frame is locked. After the tilting table rotates 90 degrees, the vertical clamping frame will not fall off.

[0019] Optionally, multiple support wheels are rotatably connected to the flipping platform, and the bottom surface of the retainer frame makes rolling contact with the support wheels.

[0020] By adopting the above technical solution, when the plug box enters the turnover table, the support wheel can easily cooperate with the plug box and connect with the automated equipment in the previous step, reducing the resistance of the plug box entering the turnover table.

[0021] Optionally, the base plate is provided with a cylinder three and a baffle that is driven to move up and down by the cylinder three, and the baffle is located on the outer side of the end of the conveyor belt.

[0022] By adopting the above technical solution, after the workpiece moves to the end of the conveyor belt, the control cylinder extends three times to raise the baffle, which blocks the workpiece, thereby determining the position of the workpiece in the length direction of the conveyor belt.

[0023] Optionally, a photoelectric switch is fixed on the substrate. The photoelectric switch is located at the end of the conveyor belt and is electrically connected to the controller for controlling the three actions of the cylinder.

[0024] By adopting the above technical solution, the photoelectric switch detects the workpiece passing by, and then the controller controls the cylinder to extend and raise the baffle, thus realizing automatic operation.

[0025] Optionally, the base plate is provided with a double-headed cylinder and two positioning plates that are driven to slide by the double-headed cylinder. The two positioning plates are respectively located on both sides of the width direction of the conveyor belt, and the positioning plates are located at the end of the conveyor belt.

[0026] By adopting the above technical solution, the double-headed cylinder is shortened, and the two positioning plates move closer to each other to clamp the workpiece, thereby determining the position of the workpiece in the width direction of the conveyor belt. In conjunction with the baffle, the workpiece is accurately positioned, which facilitates the subsequent movement of the workpiece by the robot arm.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. It can reliably remove the workpiece from the retainer frame, avoiding the workpiece being carried out by friction, thus improving reliability;

[0029] 2. The inlet end of the conveyor belt avoids the vertical movement range of the jamming frame and the workpiece, so there is no precision requirement for the electrical control distance. Even if the turnover table drops too much due to equipment failure, it will not crush the workpiece and the conveyor belt.

[0030] 3. To stop the locking frame from falling, the locking rod is inserted into the locking groove for accurate positioning. The inclined surface at the front end of the locking rod guides the automatic correction. Attached Figure Description

[0031] Figure 1 This is an overall diagram of an ultrasonic scanning cartridge transport system according to an embodiment;

[0032] Figure 2 This is a partial first-view view of an embodiment;

[0033] Figure 3 This is a schematic diagram of cylinder one in the embodiment;

[0034] Figure 4 This is a partial view from a second perspective of the embodiment;

[0035] Figure 5 It is an exploded view of the tilting table and the jamming frame before rotation;

[0036] Figure 6 This is a structural diagram of the end of the conveyor belt in an embodiment.

[0037] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Conveyor belt; 11. Base; 12. Slide; 13. Gear motor; 3. Tilting table; 4. Snap-fit ​​frame; 41. Snap-fit ​​groove; 31. Clamping cylinder; 32. Clamping plate; 5. Cylinder 1; 51. Cylinder body; 52. Piston block; 53. Air pressure chamber; 54. Inlet pipe; 55. Outlet pipe; 56. Solenoid valve 1; 57. Solenoid valve 2; 58. Adjusting valve; 14. Support platform; 6. Cylinder 2; 61. Drive rod; 62. Locking rod; 63. Top rod; 33. Locking groove; 15. Support frame; 42. Support rod; 34. Support wheel; 16. Distance sensor; 21. Cylinder 3; 22. Baffle; 23. Double-headed cylinder; 24. Positioning plate; 25. Photoelectric switch. Detailed Implementation

[0038] The present application will be further described in detail below with reference to the accompanying drawings.

[0039] Reference Figure 1 and Figure 2 This embodiment discloses an ultrasonic scanning plug transport system, including a base plate 1, a conveyor belt 2, a base 11, and a controller. The base 11 is fixed below the base plate 1. A slide block 12 is slidably connected to the base 11 in the vertical direction. A reduction motor 13 and a rotating stage 3 driven by the reduction motor 13 are provided on the slide block 12. The rotating stage 3 is used to place plug frames 4. Plug slots 41 for placing workpieces are evenly opened on the plug frames 4. The reduction motor 13 is a servo motor with a built-in braking function. The reduction motor 13 and the rotating stage 3 rotate the plug frames 4 by 90 degrees, rotating the vertically placed workpiece to a horizontal state and making the workpiece face the conveyor belt 2.

[0040] The tilting table 3 is equipped with a clamping cylinder 31 and a sliding clamping plate 32 driven by the clamping cylinder 31. The clamping plate 32 is directly opposite the outer wall of the plug frame 4. The plug frame 4 is pressed against the other side of the tilting table 3 by the clamping plate 32, and the plug frame 4 is locked. After the tilting table 3 rotates 90 degrees, the vertical plug frame 4 will not fall off.

[0041] Reference Figure 2 and Figure 3The inlet end of the conveyor belt 2 avoids the vertical movement range of the jamming frame 4 and the workpiece. A cylinder 5 is fixed to the base 11, and the piston rod end of the cylinder 5 is fixed to the slide block 12. Specifically, the cylinder 5 includes a cylinder body 51, a piston block 52 slidably connected to the cylinder body 51, and a piston rod fixed to the piston block 52. The space inside the cylinder body 51 below the piston block 52 is a pneumatic chamber 53, which is connected to an inlet pipe 54 and an outlet pipe 55. A solenoid valve 56 is installed on the inlet pipe 54, and a solenoid valve 57 and a regulating valve 58 are installed on the outlet pipe 55. The regulating valve 58 is a manual valve; its opening is adjusted by rotation. The solenoid valves 56 and 57 are electrically connected to a controller, which controls the switching. The cylinder 5 in this embodiment has the simplest cylinder structure and is relatively low in cost.

[0042] After the intake pipe 54 is connected to the compressed air source, opening solenoid valve 56 and closing solenoid valve 57 allows compressed air to be input into the air pressure chamber 53. The piston block 52 moves upward, thereby driving the slide 12 to move upward. Closing solenoid valve 56 and opening solenoid valve 57 causes the air in the air pressure chamber 53 to be forced out from the exhaust pipe 55 under the weight of the slide 12, the tilting platform 3, and the retainer frame 4. By adjusting the opening of the regulating valve 58, the outflow of gas is restricted, thereby causing the combination of slide 12, tilting platform 3, and retainer frame 4 to slowly descend. The descent speed is controlled by the regulating valve 58.

[0043] Reference Figure 3 and Figure 4 A support platform 14 is fixed to the base plate 1. The support platform 14 is equipped with a second cylinder 6 and a drive rod 61 driven by the second cylinder 6. The extension and retraction direction of the second cylinder 6 is horizontal and faces the conveyor belt 2. A locking rod 62 and a push rod 63 are fixed to the drive rod 61. Multiple locking grooves 33 are provided on the side wall of the tilting table 3. The number and position of the locking grooves 33 correspond one-to-one with the locking slots 41. The multiple locking grooves 33 are combined into a toothed structure. The locking rod 62 is used to insert into the locking groove 33, and the push rod 63 is used to push the workpiece out of the locking slot 41. The front end of the locking rod 62 tapers in thickness, facilitating insertion into the nearest locking groove 33 through the guiding action of the inclined surface. To ensure lubrication, all locking grooves 33 are coated with grease.

[0044] A support frame 15 is fixed to the base plate 1. The locking rod 62 passes through the support frame 15 and slides in contact with it. The support frame 15 provides sliding support for the locking rod 62, preventing it from bending downwards. The bottom of the retainer frame 4 has a hollowed-out section for inserting the top rod 63. Two support rods 42 for supporting the workpiece are fixed to the bottom of the retainer frame 4. The support rods 42 are positioned away from the top rod 63. The bottom structure of the retainer frame 4 facilitates cooperation with the top rod 63. The top rod 63 can push the workpiece at any height without interfering with the retainer frame 4.

[0045] Reference Figure 5Multiple support wheels 34 are rotatably connected to the tilting table 3, and the bottom surface of the plug frame 4 rolls in contact with the support wheels 34. When the plug frame 4 enters the tilting table 3, the support wheels 34 can easily cooperate with the plug frame 4 and connect with the automated equipment in the previous step, reducing the resistance of the plug frame 4 entering the tilting table 3.

[0046] Reference Figure 1 and Figure 2 A distance sensor 16 is fixed on the base plate 1. The detection end of the distance sensor 16 is horizontally set and close to the workpiece. The distance sensor 16 avoids the vertical movement range of the jamming frame 4 and the workpiece. The distance sensor 16 is used to detect the workpiece passing by. The distance sensor 16 is electrically connected to the controller and is used to control the action of the second cylinder 6. In this embodiment, it is used to control the extension of the second cylinder 6.

[0047] Reference Figure 1 and Figure 6 The base plate 1 is equipped with a cylinder 21 and a baffle 22 driven by the cylinder 21 to move up and down. The baffle 22 is located on the outer side of the end of the conveyor belt 2. The base plate 1 is also equipped with a double-headed cylinder 23 and two sliding positioning plates 24 driven by the double-headed cylinder 23. The two positioning plates 24 are located on both sides of the width direction of the conveyor belt 2, and are located at the end of the conveyor belt 2. A photoelectric switch 25 is fixed on the base plate 1. The photoelectric switch 25 is located at the end of the conveyor belt 2 and is electrically connected to the controller to control the operation of the cylinder 21.

[0048] After the workpiece moves to the end of the conveyor belt 2, the photoelectric switch 25 detects that the workpiece has passed through. Then, the controller controls the cylinder 21 to extend and raise the baffle 22, which blocks the workpiece. Then, the controller controls the conveyor belt 2 to stop, the double-headed cylinder 23 to shorten, and the two positioning plates 24 to move closer to each other to clamp the workpiece, thereby accurately positioning the workpiece at the end of the conveyor belt 2. Then, the workpiece is released, and the robot arm moves the workpiece to the position of ultrasonic scanning.

[0049] The implementation principle of an ultrasonic scanning cassette transport system according to an embodiment of this application is as follows: when the tilting table 3 is not tilted, the cassette frame 4 is placed on the tilting table 3, and then the clamping cylinder 31 drives the clamping plate 32 to move and lock the cassette frame 4 in place. The reduction motor 13 works to rotate the tilting table 3 by 90 degrees and rotate the cassette frame 4 to a vertical position. At this time, the workpiece in the cassette groove 41 is in a horizontal position and arranged vertically.

[0050] Close solenoid valve 56 and open solenoid valve 57 to slowly deflate and shorten cylinder 5, thereby causing the combination of slide 12, tilting table 3, and clamping frame 4 to slowly descend. When a workpiece is detected by distance sensor 16, control cylinder 6 to extend, driving rod 61 to move locking rod 62 and push rod 63. Locking rod 62 first inserts into the corresponding locking groove 33 to fix the height of clamping frame 4, and then push rod 63 pushes the corresponding workpiece onto conveyor belt 2. After completion, cylinder 6 shortens, locking rod 62 is pulled out of locking groove 33, and cylinder 6 repeats its action according to the detection of distance sensor 16, completing the sequential feeding of all workpieces.

[0051] When the slide block 12 moves down to its lower stop point, it is detected by another sensor. Then, the controller opens solenoid valve 56 and closes solenoid valve 57, causing cylinder 5 to extend. The subsequent reset action will not be described in detail. It should be noted that after the locking lever 62 is pulled out of the locking groove 33, its end is close to the port of the locking groove 33, which facilitates subsequent insertion into the upper locking groove 33 and improves the response speed.

[0052] After the workpiece moves to the end of the conveyor belt 2, the photoelectric switch 25 detects that the workpiece has passed through. Then, the cylinder 21 and the double-headed cylinder 23 are activated. The baffle 22 abuts against the front end of the workpiece, and the two positioning plates 24 move closer to each other to clamp the workpiece and accurately position it. Then the workpiece is released, and the robot arm moves the workpiece to the position of the ultrasonic scan.

[0053] In summary, this improved jamming conveyor system can reliably remove workpieces from the jamming frame 4, avoiding the workpieces being carried out by friction, thus improving reliability. When the jamming frame 4 stops after descending, it is accurately positioned by inserting the locking rod 62 into the locking groove 33. The guiding action of the inclined surface at the front end of the locking rod 62 allows for automatic correction. Since the inlet end of the conveyor belt 2 avoids the vertical movement range of the jamming frame 4 and the workpiece, there are no precision requirements for electrical distance control. Even if a equipment malfunction causes the tilting table 3 to descend excessively, it will not damage the workpiece or the conveyor belt 2.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ultrasonic scanning plug transport system, comprising a base plate (1), a conveyor belt (2), a base (11), and a controller, wherein a slide block (12) is slidably connected to the base (11) in the vertical direction, and a reduction motor (13) and a rotating stage (3) driven by the reduction motor (13) are provided on the slide block (12), wherein a plug frame (4) is placed inside the rotating stage (3), and the plug frame (4) is provided with plug slots (41) evenly distributed for placing workpieces, characterized in that: The inlet end of the conveying belt (2) avoids the jamming frame (4) and the vertical movement range of the workpiece, the base (11) is fixed with a first air cylinder (5), the piston rod end of the first air cylinder (5) is fixed with a sliding seat (12); the base plate (1) is fixed with a support table (14), the support table (14) is provided with a second air cylinder (6), a driving rod (61) driven by the second air cylinder (6) slides, the driving rod (61) is fixed with a locking rod (62) and a jacking rod (63), the side wall of the turnover table (3) is provided with a plurality of locking grooves (33), the number and position of the locking grooves (33) correspond to the jamming grooves (41) one by one, the front end of the locking rod (62) is tapered, the locking rod (62) is used for inserting into the locking groove (33), and the jacking rod (63) is used for jacking out the workpiece from the jamming groove (41); The bottom of the jamming frame (4) is hollow for the jacking rod (63) to insert, and the bottom of the jamming frame (4) is fixed with two support rods (42) for supporting the workpiece, and the positions of the support rods (42) avoid the jacking rod (63); The first air cylinder (5) comprises a cylinder body (51) and a piston block (52) in sliding connection with the cylinder body (51), the space in the cylinder body (51) below the piston block (52) is a gas pressure cavity (53), the gas pressure cavity (53) is communicated with an air inlet pipe (54) and an air outlet pipe (55), the air inlet pipe (54) is provided with a solenoid valve one (56), and the air outlet pipe (55) is provided with a solenoid valve two (57) and an adjusting valve (58); The base plate (1) is fixed with a distance sensor (16), the detection end of the distance sensor (16) is horizontally arranged and close to the workpiece, the distance sensor (16) avoids the vertical movement range of the jamming frame (4) and the workpiece, the distance sensor (16) is used for detecting the passing of the workpiece, and the distance sensor (16) is electrically connected with the controller and is used for controlling the action of the second air cylinder (6).

2. A cassette transport system for use in an ultrasonic scanner according to claim 1, wherein: The base plate (1) is fixed with a support frame (15), and the locking rod (62) penetrates through the support frame (15) and is in sliding contact with the support frame (15).

3. A cassette transport system for use in an ultrasonic scanner according to claim 1, wherein: The turnover table (3) is provided with a clamping air cylinder (31) and a clamping plate (32) driven by the clamping air cylinder (31) to slide, and the clamping plate (32) faces the outer side wall of the jamming frame (4).

4. A cassette transport system for use in an ultrasonic scanner according to claim 1, wherein: A plurality of support wheels (34) are rotationally connected to the turnover table (3), and the bottom surface of the jamming frame (4) is in rolling contact with the support wheels (34).

5. A cassette transport system for use in an ultrasonic scanner according to claim 1, wherein: The base plate (1) is provided with a third air cylinder (21) and a baffle (22) driven by the third air cylinder (21) to lift, and the baffle (22) is located outside the end of the conveying belt (2).

6. A cassette transport system for use in an ultrasonic scanner according to claim 5, wherein: The base plate (1) is fixed with a photoelectric switch (25), the photoelectric switch (25) is located at the end of the conveying belt (2), and the photoelectric switch (25) is electrically connected with the controller and is used for controlling the action of the third air cylinder (21).

7. A cassette transport system for use in an ultrasonic scanner according to claim 5, wherein: The substrate (1) is provided with a double-end cylinder (23) and two positioning plates (24) driven by the double-end cylinder (23) to slide, and the two positioning plates (24) are respectively located at the width direction of the conveying belt (2), and the positioning plates (24) are located at the end of the conveying belt (2).

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