A microwave circuit detection device and a microwave circuit detection process

Abstract

The application relates to the technical field of circuit detection, and discloses a microwave circuit detection device and a microwave circuit detection process. The orientation of the circuit board after being driven to rotate by the rotary table is synchronously driven to the corresponding orientation isolation piece, which does not limit the corresponding orientation top column (the other orientation isolation piece limits the top column), the corresponding orientation top column drives the corresponding orientation alignment piece to rotate out, the corresponding orientation alignment piece limits and positions the circuit board, the position deviation of the circuit board before detection is avoided, the detection accuracy is improved, and the manual operation part in the detection process is removed, so that the detection efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of circuit testing technology, specifically to a microwave circuit testing device and a microwave circuit testing process. Background Technology

[0002] With the rapid development of microwave technology, microwave circuits are becoming increasingly complex. Each product's microwave circuits require testing and debugging to verify whether they meet the product's technical requirements and fulfill its designed functions. To achieve high gain in circuits or components, multi-channel amplification is necessary. This multi-channel amplification circuit involves distribution, amplification, and combining processes. Therefore, the number of amplifiers and amplification stages required increases with the number of channels and specifications. Furthermore, as product functions become more complex, the number of interfaces between devices and external systems increases, making the testing of mass-produced microwave devices increasingly cumbersome and accurate. Circuits or components that fail to meet requirements require troubleshooting and fault location by debugging engineers, along with component replacement, to restore their electrical functionality. Due to the complexity of circuit functions, the large number of channels, and microwave crosstalk between functional circuits causing mutual interference, each channel achieves its function through multi-channel amplification and isolation. This presents significant challenges and difficulties for the testing, debugging, and maintenance of functional circuits.

[0003] Existing testing devices, such as Chinese patent CN106442573A, achieve good microwave matching by pressing an exposed metal conductor strip onto the port of the device under test (DUT) and the microstrip conductor of the connecting circuit board. The shape of the metal conductor strip can be rationally designed according to actual conditions, so that the metal conductor strip is above the port of the DUT and the microstrip line of the connecting circuit board. During use, the metal conductor strip is quickly pressed down to connect the DUT and the connecting circuit board, providing a microwave signal feed path and ensuring good electrical contact. For the non-destructive testing of such components, a new microwave energy feed structure is adopted, avoiding the expensive and time-consuming gold wire bonding process. The connection is fast and convenient and will not damage the components. It can inspect all components and is highly efficient.

[0004] However, the following problems still exist: the microwave circuit testing process requires an operator to operate the testing device, and the testing position during the microwave circuit testing process needs to be manually aligned by the operator. However, deviations are prone to occur during the alignment, resulting in inaccurate testing results. At the same time, the efficiency of manual testing is low. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a microwave circuit testing device that offers advantages such as improved testing efficiency and increased testing accuracy. It solves the problems of requiring operators to manually align the testing device during microwave circuit testing, which can lead to inaccurate test results due to potential deviations in alignment, and the low efficiency of manual testing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a microwave circuit testing device, comprising a body, a transmission mechanism disposed on the body, and an alignment testing mechanism disposed on the body, wherein the transmission mechanism comprises a conveyor belt and a turntable, the conveyor belts are symmetrically disposed on the body, the spacing between the two sides of the conveyor belts is adapted to the circuit board, and the turntable is disposed between the conveyor belts;

[0007] The alignment detection mechanism includes a top column, an isolation component, and an alignment component. Multiple top columns are arranged above the turntable. Each top column is connected to a detection component, and each top column is individually connected to a detection component on each side. The detection components are arranged in a cross shape. Multiple isolation components are located on the same horizontal plane as the turntable, and each isolation component corresponds to one of the top columns. The alignment component is located on the same horizontal plane as the turntable, and the alignment component is distributed in the same way as the detection components.

[0008] After the turntable lifts the circuit board, the top column and the detection component move closer to the circuit board together. When the horizontal top column is restricted by the isolation component, the vertical top column drives the vertical alignment component to position the circuit board in a vertically restricted manner.

[0009] Preferably, the transmission mechanism further includes a rail frame symmetrically arranged on the machine body, the rail frame penetrating the machine body, and multiple conveyor rollers rotatably coupled to each rail frame. The conveyor belt is tensioned on each of the conveyor rollers on each side. A dual-axis motor is fixedly installed inside the machine body, the dual-axis motor is located below the rail frame, and chains are tensioned on each side shaft of the dual-axis motor and on the shaft of each side conveyor roller.

[0010] Preferably, a hydraulic rod is fixedly installed at the bottom of the machine body, the hydraulic rod is opposite to the turntable, a worktable is fixedly installed on the extension of the hydraulic rod, a stepper motor is fixedly installed on the worktable, the stepper motor is located below the turntable, a reset telescopic rod is fixedly installed on the shaft of the stepper motor, the reset telescopic rod passes through the worktable, the reset telescopic rod is rotatably engaged with the worktable, and the extension of the reset telescopic rod is fixedly connected to the turntable.

[0011] Preferably, a quarter-circle limiting ring is fixedly installed on the worktable, the extension rod of the reset telescopic rod passes through the inner ring of the quarter-circle limiting ring, the outer ring size of the quarter-circle limiting ring is the same as the size of the turntable, the turntable is adapted to the quarter-circle limiting ring, and the top surface of the turntable and the top surface of the worktable are located in the same horizontal plane.

[0012] Preferably, the alignment detection mechanism further includes an electrically controlled telescopic rod, which is fixedly installed at the top of the body. A positioning frame is fixedly installed on the extension of the electrically controlled telescopic rod, and multiple sliding columns are fixedly installed at the bottom of the positioning frame. The sliding columns of the positioning frame are arranged in a cross shape. A first sliding plate group is slidably engaged on the horizontal sliding column of the positioning frame, and a second sliding plate group is slidably engaged on the vertical sliding column of the positioning frame. A spring is sleeved on each sliding column of the positioning frame. One end of the spring is connected to the top of the positioning frame, and the other end of the spring is connected to the first sliding plate group and the second sliding plate group, respectively.

[0013] Preferably, the detection components include positioning detection components and electrical detection components. Multiple positioning detection components are fixedly installed at the bottom end of the first slide group, and multiple electrical detection components are fixedly installed at the bottom end of the second slide group. Each positioning detection component has a slidably fitted detection protection buffer head at its bottom end, the detection protection buffer head penetrating the wall surface of the positioning detection component. The electrical detection components also have slidably fitted detection protection buffer heads at their bottom ends, the detection protection buffer heads penetrating the wall surface of the electrical detection components. The top posts are respectively fixedly installed at the bottom ends of the first slide group and the second slide group.

[0014] Preferably, the worktable has multiple control ports, all of which penetrate the worktable and are opposite to the top column. Multiple shafts are rotatably fitted onto the worktable, each located next to a control port. The top end of each shaft is on the same horizontal plane as the top surface of the worktable, and all shafts penetrate the worktable. An isolation component is fixedly installed on the top end of each shaft, with its top surface on the same horizontal plane as the top surface of the worktable. A portion of the isolation component blocks the control ports. A belt is tensioned between the bottom end of each shaft and the shaft of the stepper motor.

[0015] Preferably, a plurality of alignment members are rotatably fitted on the top surface of the worktable, and each alignment member rotates from inside the worktable to outside the worktable. A plurality of auxiliary rollers are rotatably fitted below the worktable, and each auxiliary roller corresponds one-to-one with a alignment member. Toothed belts are tensioned on the shafts of the auxiliary rollers and the shafts of the alignment members, and the toothed belts pass through the worktable. Control rods are slidably fitted inside each control port. Each auxiliary roller is provided with teeth, and each auxiliary roller is provided with a rack. The racks are all vertically arranged and mesh with the auxiliary rollers. The bottom ends of the racks are all connected to the bottom ends of the control rods. The racks, control rods, and detection members are distributed in the same way.

[0016] A microwave circuit testing process, wherein the microwave circuit testing process uses any of the microwave circuit testing devices described above.

[0017] Compared with the prior art, the present invention provides a microwave circuit detection device, which has the following beneficial effects:

[0018] 1. This microwave circuit testing device, through the turntable driving the circuit board to rotate, synchronously drives the isolation component of the corresponding orientation so that it does not restrict the top post of the corresponding orientation (isolation components of other orientations restrict the top post). This causes the top post of the corresponding orientation to drive the alignment component of the corresponding orientation to rotate out, so that the alignment component of the corresponding orientation restricts and positions the circuit board, ensuring that the circuit board will not have a positional shift before testing, increasing the accuracy of testing, and eliminating the manual operation part in the testing process, effectively improving the testing efficiency.

[0019] 2. This microwave circuit testing device, as the turntable rotates, rotates on a quarter-limit ring. Due to the structural constraint of the quarter-limit ring, the turntable first rises relative to the quarter-limit ring each time it rotates. The turntable then drives the extension rod of the reset telescopic rod to extend. After rotating a certain degree, the turntable returns to its position relative to the quarter-limit ring. However, the stepper motor cannot stop immediately, resulting in over-rotation. At this time, the reset force of the reset telescopic rod drives the turntable to completely reset its relative position on the quarter-limit ring, thereby ensuring that the turntable rotates at the same angle each time, improving the accuracy of the testing device and ensuring the accuracy of the test results.

[0020] 3. In this microwave circuit testing device, when the circuit board is placed horizontally, the movement trajectories of the horizontal isolator and the horizontal top post are separated, while the movement trajectories of the vertical isolator and the vertical top post coincide. As the top post moves, the horizontal top post passes through the horizontal isolator and enters the horizontal control port, while the vertical top post and the vertical isolator come into contact, causing the vertical isolator to drive the vertical top post to stop moving. When the circuit board is placed vertically, the stepper motor drives the isolator to rotate, causing the movement trajectories of the horizontal isolator and the horizontal top post to coincide, while the movement trajectories of the vertical isolator and the vertical top post are separated. This allows the testing device to effectively distinguish between horizontal and vertical circuit board placement testing, thereby improving the singleness of horizontal component positioning testing and vertical component electrical testing, and preventing the mixing of horizontal and vertical testing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the body of the present invention;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure at the rail frame of the present invention;

[0025] Figure 5 This is a schematic diagram of the hydraulic rod structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the workbench of the present invention;

[0027] Figure 7 This is a schematic diagram of the alignment detection mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the electrically controlled telescopic rod of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure at the top column of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure at the control port of the present invention;

[0031] Figure 11 This is a schematic diagram of the auxiliary roller structure of the present invention;

[0032] Figure 12 This is a schematic diagram of the overall structure of the detection device of the present invention.

[0033] In the diagram: 1. Machine body; 2. Transmission mechanism; 21. Rail frame; 22. Conveyor roller; 23. Conveyor belt; 24. Dual-axis motor; 25. Chain; 26. Hydraulic rod; 27. Worktable; 28. Stepper motor; 29. ​​Reset telescopic rod; 210. Quarter-position limit ring; 211. Turntable; 3. Alignment detection mechanism; 31. Electrically controlled telescopic rod; 32. Positioning frame; 33. First slide plate group; 34. Second slide plate group; 35. Spring; 36. Positioning detection component; 37. Electrical detection component; 38. Detection protection buffer head; 39. Top column; 310. Control port; 311. Shaft; 312. Isolator; 313. Belt; 314. Alignment component; 315. Auxiliary roller; 316. Toothed belt; 317. Control rod; 318. Rack. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a microwave circuit detection device.

[0036] In one typical implementation of this application, such as Figure 1-12 As shown, a microwave circuit testing device includes a body 1, a transmission mechanism 2 disposed on the body 1, and an alignment testing mechanism 3 disposed on the body 1. The transmission mechanism 2 includes a conveyor belt 23 and a turntable 211. The conveyor belts 23 are symmetrically disposed on the body 1, and the spacing between the two conveyor belts 23 is adapted to the circuit board. The turntable 211 is disposed between the conveyor belts 23.

[0037] The alignment detection mechanism 3 includes a top column 39, an isolation member 312, and an alignment member 314. Multiple top columns 39 are arranged above the turntable 211. The top columns 39 are connected to the detection members, and each top column 39 is individually connected to the detection members on each side. The detection members are arranged in a cross shape. Multiple isolation members 312 are located in the same horizontal plane as the turntable 211. The isolation members 312 correspond one-to-one with the top columns 39. The alignment member 314 is located in the same horizontal plane as the turntable 211. The alignment member 314 is distributed in the same way as the detection members.

[0038] After the turntable 211 lifts the circuit board, the top post 39 and the detection component move closer to the circuit board together. When the horizontal top post 39 is restricted by the isolation component 312, the vertical top post 39 drives the vertical alignment component 314 to position the circuit board in a vertically restricted manner.

[0039] When using this invention:

[0040] The circuit board is transported via conveyor belt 23 to the alignment detection mechanism 3, moving it to the detection position. The turntable 211 then rises from between the conveyor belts 23 to lift the circuit board. The alignment detection mechanism 3 then moves closer to the circuit board, causing the top post 39 to first contact the isolator 312. At this point, both the circuit board and the conveyor belt 23 are oriented laterally. The lateral isolator 312 does not restrict the lateral top post 39 (unlike the longitudinal isolator 312 which restricts the longitudinal top post 39), allowing the lateral top post 39 to pass through the lateral isolator 312 and continue moving (unlike the longitudinal top post 39 which is stopped by the longitudinal isolator 312). This causes the lateral top post 39 to drive the lateral alignment member 314 to rotate. The lateral alignment member 314 restricts and positions the lateral side of the circuit board, and the lateral detection member moves with the lateral top post 39. The alignment detection mechanism 3 then contacts the circuit board to perform component positioning detection. After that, the alignment detection mechanism 3 moves away from the circuit board, and the turntable 211 rotates 90 degrees to place the circuit board longitudinally. At the same time, the rotation of the turntable 211 drives the horizontal isolation member 312 and the vertical isolation member 312 to change. Then, the alignment detection mechanism 3 continues to move closer to the circuit board. At this time, the vertical top post 39 passes through the vertical isolation member 312 and continues to move (the horizontal top post 39 is stopped by the horizontal isolation member 312). This causes the vertical top post 39 to drive the vertical alignment member 314 to rotate. The vertical alignment member 314 restricts and positions the vertical side of the circuit board. After the vertical detection member moves with the vertical top post 39, it contacts the circuit board to perform component electrical detection. Then, all mechanisms are reset to transfer the circuit board away from the conveyor belt 23.

[0041] The turntable 211 drives the circuit board to rotate, and the corresponding orientation of the isolation member 312 will not restrict the top post 39 of the corresponding orientation (isolation members 312 of other orientations restrict the top post 39). This causes the top post 39 of the corresponding orientation to drive the alignment member 314 of the corresponding orientation to rotate out, so that the alignment member 314 of the corresponding orientation can restrict and position the circuit board, ensuring that the circuit board will not have a positional shift before testing, increasing the accuracy of testing, and eliminating the manual operation part in the testing process, effectively improving the testing efficiency.

[0042] Furthermore, the transmission mechanism 2 also includes a rail frame 21, which is symmetrically arranged on the machine body 1 and extends through the machine body 1. Multiple conveyor rollers 22 are rotatably fitted on the rail frame 21, and a conveyor belt 23 is tensioned on each side of the conveyor roller 22. A dual-axis motor 24 is fixedly installed inside the machine body 1. The dual-axis motor 24 is located below the rail frame 21, and chains 25 are tensioned on each side shaft of the dual-axis motor 24 and on the shaft of each side conveyor roller 22.

[0043] During the transmission of the circuit board, the circuit board is first placed at one end of the conveyor belt 23, and the dual-axis motor 24 is started. The dual-axis motor 24 drives the chain 25 to rotate, and the chain 25 drives the conveyor roller 22 to rotate. The conveyor roller 22 drives the conveyor belt 23 to rotate, so that the conveyor belt 23 moves the circuit board to below the alignment detection mechanism 3. After the detection process, the conveyor belt 23 moves the circuit board out of the machine body 1.

[0044] Furthermore, a hydraulic rod 26 is fixedly installed at the bottom of the machine body 1. The hydraulic rod 26 is opposite to the turntable 211. A worktable 27 is fixedly installed on the extension rod of the hydraulic rod 26. A stepper motor 28 is fixedly installed on the worktable 27. The stepper motor 28 is located below the turntable 211. A reset telescopic rod 29 is fixedly installed on the shaft of the stepper motor 28. The reset telescopic rod 29 passes through the worktable 27 and rotates with the worktable 27. The extension rod of the reset telescopic rod 29 is fixedly connected to the turntable 211.

[0045] Furthermore, a reset spring is provided inside the reset telescopic rod 29. After the extension of the reset telescopic rod 29 moves, the reset spring can drive the reset telescopic rod 29 to reset.

[0046] In this process, after the circuit board moves to the position detection mechanism 3, the hydraulic rod 26 is activated, which drives the worktable 27 to move. The worktable 27 drives the stepper motor 28 to move, which in turn drives the reset telescopic rod 29 to move. The worktable 27 then drives the turntable 211 to move, causing the turntable 211 to lift the circuit board so that it leaves the conveyor belt 23. When it is necessary to rotate the circuit board, the stepper motor 28 is activated, which drives the reset telescopic rod 29 to rotate. The reset telescopic rod 29 then drives the turntable 211 to rotate, which in turn drives the circuit board to rotate.

[0047] Furthermore, a quarter-limiting ring 210 is fixedly installed on the worktable 27. The extension rod of the reset telescopic rod 29 passes through the inner ring of the quarter-limiting ring 210. The outer ring size of the quarter-limiting ring 210 is the same as the size of the turntable 211. The turntable 211 is adapted to the quarter-limiting ring 210. The top surface of the turntable 211 and the top surface of the worktable 27 are located in the same horizontal plane.

[0048] Furthermore, the quarter-position limiting ring 210 is a press-to-limit structure similar to that on a ballpoint pen, which limits the angle of each rotation of the turntable 211 to ensure the accuracy of the rotation angle of the turntable 211.

[0049] As the turntable 211 rotates, it rotates on the quarter-limit ring 210. Due to the structural limitation of the quarter-limit ring 210, the turntable 211 first rises relative to the quarter-limit ring 210 each time it rotates. The turntable 211 drives the extension rod of the reset telescopic rod 29 to extend. Then, the turntable 211 rotates 90 degrees and resets its position relative to the quarter-limit ring 210. However, the stepper motor 28 cannot stop immediately, so there is a situation of over-rotation. At this time, the reset force of the reset telescopic rod 29 drives the turntable 211 to completely reset its relative position on the quarter-limit ring 210, thereby ensuring that the rotation angle of the turntable 211 is 90 degrees each time, improving the accuracy of the detection device and ensuring the accuracy of the detection results.

[0050] Furthermore, the alignment detection mechanism 3 also includes an electrically controlled telescopic rod 31, which is fixedly installed at the top of the machine body 1. A positioning frame 32 is fixedly installed on the extension rod of the electrically controlled telescopic rod 31. Multiple sliding columns are fixedly installed at the bottom of the positioning frame 32. The sliding columns of the positioning frame 32 are arranged in a cross shape. A first sliding plate group 33 is slidably fitted on the sliding column of the horizontal positioning frame 32, and a second sliding plate group 34 is slidably fitted on the sliding column of the vertical positioning frame 32. A spring 35 is sleeved on each sliding column of the positioning frame 32. One end of the spring 35 is connected to the top of the positioning frame 32, and the other end of the spring 35 is connected to the first sliding plate group 33 and the second sliding plate group 34 respectively.

[0051] Furthermore, the detection components include positioning detection components 36 and electrical detection components 37. Multiple positioning detection components 36 are fixedly installed at the bottom end of the first slide group 33, and multiple electrical detection components 37 are fixedly installed at the bottom end of the second slide group 34. The bottom end of each positioning detection component 36 is slidably fitted with a detection protection buffer head 38, which penetrates the wall surface of the positioning detection component 36. The bottom end of each electrical detection component 37 is slidably fitted with a detection protection buffer head 38, which penetrates the wall surface of the electrical detection component 37. The top post 39 is fixedly installed at the bottom end of the first slide group 33 and the bottom end of the second slide group 34, respectively.

[0052] During the testing process, the electrically controlled telescopic rod 31 is activated, which drives the positioning frame 32 to move. The positioning frame 32 drives the first sliding plate group 33 and the second sliding plate group 34 to move. The first sliding plate group 33 and the second sliding plate group 34 drive the positioning detection component 36 and the electrical detection component 37 to move. At the same time, the first sliding plate group 33 and the second sliding plate group 34 drive the top column 39 to move. When the device is in contact with the circuit board for testing, the detection protection buffer head 38 will retract and move relative to the positioning detection component 36 (electrical detection component 37) during testing to protect the components on the circuit board.

[0053] Furthermore, the worktable 27 is provided with multiple control ports 310, all of which penetrate the worktable 27 and are opposite to the top column 39. Multiple shafts 311 are rotatably fitted on the worktable 27, all of which are located next to the control ports 310. The top of the shafts 311 is on the same horizontal plane as the top surface of the worktable 27. All shafts 311 penetrate the worktable 27. An isolation piece 312 is fixedly installed on the top of each shaft 311. The top surface of the isolation piece 312 is on the same horizontal plane as the top surface of the worktable 27. Part of the isolation piece 312 blocks the control ports 310. A belt 313 is tensioned on the bottom of the shafts 311 and the shaft of the stepper motor 28.

[0054] When the circuit board is placed horizontally, the horizontal isolation member 312 separates from the horizontal top post 39, while the vertical isolation member 312 coincides with the vertical top post 39. As the top post 39 moves, the horizontal top post 39 passes through the horizontal isolation member 312 and enters the horizontal control port 310. The vertical top post 39 abuts against the vertical isolation member 312, causing the vertical isolation member 312 to drive the vertical top post 39 to stop moving. The vertical top post 39 then drives the second sliding plate assembly 34 to stop moving, and the second sliding plate assembly 34 moves and compresses relative to the positioning frame 32. Spring 35, and when the circuit board is placed longitudinally, stepper motor 28 drives belt 313 to rotate, belt 313 drives shaft 311 to rotate, shaft 311 drives isolator 312 to rotate, so that the movement trajectory of the transverse isolator 312 coincides with that of the transverse top post 39, and the movement trajectory of the longitudinal isolator 312 separates from that of the longitudinal top post 39. This makes the detection device able to clearly distinguish between transverse and longitudinal placement detection of the circuit board, thereby improving the singleness of transverse component positioning detection and longitudinal component electrical detection, and preventing the mixing of transverse and longitudinal detection.

[0055] Furthermore, multiple alignment components 314 are rotatably fitted on the top surface of the worktable 27. All alignment components 314 rotate from inside the worktable 27 to outside the worktable 27. Multiple auxiliary rollers 315 are rotatably fitted below the worktable 27. Each auxiliary roller 315 corresponds to one of the alignment components 314. Toothed belts 316 are tensioned on the shafts of both the auxiliary rollers 315 and the alignment components 314. The toothed belts 316 pass through the worktable 27. Control rods 317 are slidably fitted inside the control ports 310. Each auxiliary roller 315 is provided with teeth. Each auxiliary roller 315 is provided with a rack 318. The racks 318 are all vertically arranged and mesh with the auxiliary rollers 315. The bottom end of each rack 318 is connected to the bottom end of the control rod 317. The racks 318, control rods 317 and the detection components are distributed in the same way.

[0056] As the top column 39 enters the control port 310, the top column 39 drives the control rod 317 to move. The control rod 317 drives the rack 318 to move. The rack 318 drives the auxiliary roller 315 to rotate. The auxiliary roller 315 drives the toothed belt 316 to rotate. The toothed belt 316 drives the alignment member 314 to rotate, so that the alignment member 314 rotates out of the worktable 27. This allows the alignment member 314 to restrict and position the edge of the circuit board, effectively limiting the circuit board to the detection position and ensuring the detection accuracy during the detection process.

[0057] Working principle:

[0058] The circuit board is transported via conveyor belt 23 to the alignment detection mechanism 3, where it is moved to the detection position. The turntable 211 then rises from between the conveyor belts 23 to lift the circuit board. The alignment detection mechanism 3 then moves closer to the circuit board, causing the top post 39 to first contact the isolator 312. At this point, both the circuit board and the conveyor belt 23 are oriented laterally. The lateral isolator 312 does not restrict the lateral top post 39 (unlike the longitudinal isolator 312 which restricts the longitudinal top post 39), allowing the lateral top post 39 to pass through the lateral isolator 312 and continue moving. (The longitudinal top post 39 is stopped from moving by the longitudinal isolation member 312), thereby causing the transverse top post 39 to drive the transverse alignment member 314 to rotate. The transverse alignment member 314 restricts and positions the transverse side of the circuit board. After the transverse detection member moves with the transverse top post 39, it contacts the circuit board to perform component positioning detection on the circuit board. Then, the alignment detection mechanism 3 moves away from the circuit board, and the turntable 211 rotates 90 degrees to place the circuit board longitudinally. At the same time, the rotation of the turntable 211 drives the transverse isolation member 312 and the longitudinal isolation member 312 to move. The change occurs, and then the alignment detection mechanism 3 continues to move closer to the circuit board. At this time, the longitudinal top post 39 continues to move through the longitudinal isolation member 312 (the transverse top post 39 is stopped by the transverse isolation member 312), thereby causing the longitudinal top post 39 to drive the longitudinal alignment member 314 to rotate. The longitudinal alignment member 314 restricts and positions the longitudinal side of the circuit board. After the longitudinal detection member moves with the longitudinal top post 39, it contacts the circuit board to perform component electrical testing on the circuit board. Then all mechanisms reset to remove the circuit board from the conveyor belt 2. 3. The circuit board is rotated by the turntable 211, and the corresponding orientation of the isolation member 312 will not restrict the top post 39 of the corresponding orientation (isolation members 312 of other orientations restrict the top post 39). This causes the top post 39 of the corresponding orientation to drive the alignment member 314 of the corresponding orientation to rotate out, so that the alignment member 314 of the corresponding orientation can restrict and position the circuit board, ensuring that the circuit board will not have a positional shift before testing, increasing the accuracy of testing, and eliminating the manual operation part in the testing process, effectively improving the testing efficiency.

[0059] During the circuit board transfer process, the circuit board is first placed at one end of the conveyor belt 23. The dual-axis motor 24 is then started, driving the chain 25 to rotate. The chain 25 drives the conveyor roller 22 to rotate, which in turn drives the conveyor belt 23 to rotate. This causes the conveyor belt 23 to move the circuit board to below the alignment detection mechanism 3. After detection, the conveyor belt 23 moves the circuit board out of the machine body 1. Once the circuit board is below the alignment detection mechanism 3, the hydraulic rod 26 is activated, moving the worktable 27. The worktable 27 then drives the stepper motor 28 to move, which in turn moves the reset telescopic rod 29. This causes the turntable 211 to move, lifting the circuit board off the conveyor belt 23. When it is necessary to rotate the circuit board, the stepper motor 28 is activated, driving the reset telescopic rod 29 to move. The telescopic rod 29 rotates, and the reset telescopic rod 29 drives the turntable 211 to rotate. The turntable 211 drives the circuit board to rotate. As the turntable 211 rotates, it rotates on the quarter-limit ring 210. Due to the structural limitation of the quarter-limit ring 210, the turntable 211 first rises relative to the quarter-limit ring 210 each time it rotates. The turntable 211 drives the extension rod of the reset telescopic rod 29 to extend. Then, the turntable 211 rotates 90 degrees and resets its position relative to the quarter-limit ring 210. However, the stepper motor 28 cannot stop immediately, so there is an over-rotation. At this time, the reset force of the reset telescopic rod 29 drives the turntable 211 to completely reset its relative position on the quarter-limit ring 210, thereby ensuring that the rotation angle of the turntable 211 is 90 degrees each time, improving the accuracy of the detection device and ensuring the accuracy of the detection results.

[0060] During the testing process, the electrically controlled telescopic rod 31 is activated, which moves the positioning frame 32. The positioning frame 32 then moves the first sliding plate group 33 and the second sliding plate group 34. These groups move the positioning detection element 36 and the electrical detection element 37. Simultaneously, the first and second sliding plate groups 33 and 34 move the top column 39. When the device comes into contact with the circuit board for testing, the detection protection buffer head 38 retracts and moves relative to the positioning detection element 36 (electrical detection element 37) to inspect the components on the circuit board. For horizontal protection: When the circuit board is placed horizontally, the horizontal isolation member 312 separates from the horizontal top post 39, while the vertical isolation member 312 coincides with the vertical top post 39. As the top post 39 moves, the horizontal top post 39 passes through the horizontal isolation member 312 and enters the horizontal control port 310. The vertical top post 39 abuts against the vertical isolation member 312, causing the vertical isolation member 312 to drive the vertical top post 39 to stop moving. The vertical top post 39 then drives the second sliding plate group 34 to stop moving. The second sliding plate group 34 is relative to the stationary position. The mounting bracket 32 ​​moves and compresses the spring 35. When the circuit board is placed longitudinally, the stepper motor 28 drives the belt 313 to rotate, which in turn drives the shaft 311 to rotate. The shaft 311 then drives the isolator 312 to rotate, causing the lateral isolator 312 to coincide with the lateral top post 39, while the longitudinal isolator 312 separates from the longitudinal top post 39. This allows the detection device to clearly distinguish between lateral and longitudinal placement detection of the circuit board, thereby improving the single-function detection of component positioning in the lateral direction and electrical properties in the longitudinal direction. To prevent the mixing of horizontal and vertical detection, after the top column 39 enters the control port 310, the top column 39 drives the control rod 317 to move, the control rod 317 drives the rack 318 to move, the rack 318 drives the auxiliary roller 315 to rotate, the auxiliary roller 315 drives the toothed belt 316 to rotate, and the toothed belt 316 drives the alignment member 314 to rotate, so that the alignment member 314 rotates out of the worktable 27, so that the alignment member 314 restricts and positions the edge of the circuit board, effectively limiting the circuit board to the detection position and ensuring the detection accuracy during the detection process.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microwave circuit testing device, comprising a body (1), a transmission mechanism (2) disposed on the body (1), and an alignment detection mechanism (3) disposed on the body (1), characterized in that: The transmission mechanism (2) includes a conveyor belt (23) and a turntable (211). The conveyor belt (23) is symmetrically arranged on the machine body (1). The spacing between the two sides of the conveyor belt (23) is adapted to the circuit board. The turntable (211) is arranged between the conveyor belts (23). The alignment detection mechanism (3) includes a top column (39), an isolation member (312), and an alignment member (314). Multiple top columns (39) are arranged above the turntable (211). The top columns (39) are connected to the detection members. Each top column (39) is individually connected to the detection members on each side. The detection members are arranged in a cross shape. Multiple isolation members (312) are located in the same horizontal plane as the turntable (211). The isolation members (312) correspond one-to-one with the top columns (39). The alignment member (314) is located in the same horizontal plane as the turntable (211). The alignment member (314) is distributed in the same way as the detection members. After the turntable (211) lifts the circuit board, the top column (39) and the detection component move closer to the circuit board together. When the horizontal top column (39) is restricted by the isolation component (312), the vertical top column (39) drives the vertical alignment component (314) to position the circuit board in a vertically restricted manner. A hydraulic rod (26) is fixedly installed at the bottom of the machine body (1). A worktable (27) is fixedly installed on the extension rod of the hydraulic rod (26). Multiple control ports (310) are opened on the worktable (27). When the circuit board is placed horizontally, the horizontal isolation member (312) and the horizontal top post (39) are separated in their movement trajectories, while the vertical isolation member (312) and the vertical top post (39) are aligned in their movement trajectories. As the top post (39) moves, the horizontal top post (39) passes through the horizontal isolation member (312) and enters the horizontal control port (310). The vertical top post (39) and the vertical isolation member (312) come into contact, causing the vertical isolation member (312) to drive the vertical top post (39) to stop moving.

2. The microwave circuit detection device according to claim 1, characterized in that: The transmission mechanism (2) also includes a rail frame (21), which is symmetrically arranged on the machine body (1). The rail frame (21) passes through the machine body (1). Multiple conveyor rollers (22) are rotatably fitted on the rail frame (21). The conveyor belt (23) is tensioned on each side of the conveyor roller (22). A dual-axis motor (24) is fixedly installed inside the machine body (1). The dual-axis motor (24) is located below the rail frame (21). Chains (25) are tensioned on each side shaft of the dual-axis motor (24) and on the shaft of each side conveyor roller (22).

3. The microwave circuit detection device according to claim 2, characterized in that: The hydraulic rod (26) is opposite to the turntable (211). A stepper motor (28) is fixedly installed on the worktable (27). The stepper motor (28) is located below the turntable (211). A reset telescopic rod (29) is fixedly installed on the shaft of the stepper motor (28). The reset telescopic rod (29) passes through the worktable (27). The reset telescopic rod (29) rotates with the worktable (27). The extension of the reset telescopic rod (29) is fixedly connected to the turntable (211).

4. The microwave circuit detection device according to claim 3, characterized in that: A quarter-limiting ring (210) is fixedly installed on the workbench (27). The extension rod of the reset telescopic rod (29) passes through the inner ring of the quarter-limiting ring (210). The outer ring size of the quarter-limiting ring (210) is the same as the size of the turntable (211). The turntable (211) is adapted to the quarter-limiting ring (210). The top surface of the turntable (211) and the top surface of the workbench (27) are located in the same horizontal plane.

5. The microwave circuit detection device according to claim 4, characterized in that: The alignment detection mechanism (3) further includes an electrically controlled telescopic rod (31), which is fixedly installed at the top of the body (1). A positioning frame (32) is fixedly installed on the extension rod of the electrically controlled telescopic rod (31). Multiple sliding columns are fixedly installed at the bottom of the positioning frame (32). The sliding columns of the positioning frame (32) are arranged in a cross shape. A first sliding plate group (33) is slidably fitted on the horizontal sliding column of the positioning frame (32). A second sliding plate group (34) is slidably fitted on the vertical sliding column of the positioning frame (32). A spring (35) is sleeved on each sliding column of the positioning frame (32). One end of the spring (35) is connected to the top of the positioning frame (32), and the other end of the spring (35) is connected to the first sliding plate group (33) and the second sliding plate group (34) respectively.

6. The microwave circuit detection device according to claim 5, characterized in that: The detection components include positioning detection components (36) and electrical detection components (37). Multiple positioning detection components (36) are fixedly installed at the bottom end of the first sliding plate group (33), and multiple electrical detection components (37) are fixedly installed at the bottom end of the second sliding plate group (34). The bottom end of each positioning detection component (36) is slidably fitted with a detection protection buffer head (38), which penetrates the wall surface of the positioning detection component (36). The bottom end of each electrical detection component (37) is slidably fitted with the detection protection buffer head (38), which penetrates the wall surface of the electrical detection component (37). The top column (39) is fixedly installed at the bottom end of the first sliding plate group (33) and the bottom end of the second sliding plate group (34).

7. A microwave circuit detection device according to claim 6, characterized in that: The control ports (310) all penetrate the worktable (27), and the control ports (310) are all opposite to the top column (39). Multiple shafts (311) are rotatably fitted on the worktable (27). The shafts (311) are all located next to the control ports (310). The top of the shafts (311) is in the same horizontal plane as the top surface of the worktable (27). The shafts (311) all penetrate the worktable (27). The top of the shafts (311) is fixedly installed with the isolation piece (312). The top surface of the isolation piece (312) is in the same horizontal plane as the top surface of the worktable (27). Part of the isolation piece (312) blocks the control ports (310). The bottom of the shafts (311) and the shaft of the stepper motor (28) are tensioned with belts (313).

8. A microwave circuit detection device according to claim 7, characterized in that: The top surface of the worktable (27) is rotatably fitted with multiple alignment members (314), each of which rotates from inside the worktable (27) to outside the worktable (27). Below the worktable (27) are multiple auxiliary rollers (315), each corresponding one-to-one with a alignment member (314). Toothed belts (316) are tensioned on the shafts of both the auxiliary rollers (315) and the alignment members (314), and these toothed belts (316) penetrate the worktable. 27), each of the control ports (310) is slidably fitted with a control rod (317), each of the auxiliary rollers (315) is provided with teeth, each of the auxiliary rollers (315) is provided with a rack (318) next to each of the auxiliary rollers (315), each of the racks (318) is vertically arranged, each of the racks (318) meshes with the auxiliary rollers (315), and the bottom end of each rack (318) is connected to the bottom end of the control rod (317). The racks (318), the control rods (317) and the detection element are distributed in the same way.

9. A microwave circuit testing process, characterized in that: This microwave circuit testing process uses a microwave circuit testing device as described in any one of claims 1-8. The circuit board is transported via the conveyor belt (23) to the alignment detection mechanism (3), moving it to the detection position. The turntable (211) then rises from between the conveyor belts (23) to lift the circuit board. The alignment detection mechanism (3) then moves closer to the circuit board, causing the top post (39) to first contact the isolator (312). At this time, both the circuit board and the conveyor belt (23) are oriented laterally. The lateral isolator (312) does not restrict the lateral top post (39), allowing the lateral top post (39) to pass through the lateral isolator (312) and continue moving. This causes the lateral top post (39) to drive the lateral alignment member (314) to rotate. The lateral alignment member (314) restricts and positions the lateral side of the circuit board. The lateral detection member moves with the lateral top post (39) and then contacts the circuit board. The circuit board is brought into contact to perform component positioning detection. Then, the alignment detection mechanism (3) moves away from the circuit board. The turntable 211 rotates 90 degrees to place the circuit board longitudinally. At the same time, the rotation of the turntable (211) drives the horizontal isolation member (312) and the vertical isolation member (312) to change. Then, the alignment detection mechanism (3) continues to move closer to the circuit board. At this time, the vertical top post (39) passes through the vertical isolation member (312) and continues to move, so that the vertical top post (39) drives the vertical alignment member (314) to rotate. The vertical alignment member (314) restricts and positions the vertical side of the circuit board. The vertical detection member moves with the vertical top post (39) and comes into contact with the circuit board to perform component electrical detection on the circuit board. Then, all mechanisms are reset to transfer the circuit board away from the conveyor belt (23).

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