A fully automated testing device and method for main control boards

Abstract

This invention discloses a fully automatic testing device and method for a main control board, belonging to the field of circuit board testing technology. It includes a base frame; a continuous feeding mechanism for continuously conveying the main control board to a tooling plate is provided at the left end of the base frame; an automatic positioning mechanism is provided on the tooling plate; and a continuous detection mechanism is provided on the rear side of the upper end of the base frame. The continuous detection mechanism includes a rotary horizontal holding support mechanism and a detection mechanism. In this manner, the tooling plate flows counterclockwise on a circular track. After the continuous feeding mechanism transfers the main control board to the tooling plate, the automatic positioning mechanism clamps and positions the main control board on the tooling plate, and a vision inspection device photographs and inspects the main control board. The rotary horizontal holding support mechanism controls the detection mechanism to maintain a horizontal posture while performing circular motion, allowing the detection mechanism to inspect the main control board on the tooling plate during its movement, thus achieving continuous and efficient testing of the main control board.

Description

Technical Field

[0001] This invention relates to the field of circuit board testing technology, specifically to a fully automated testing device and method for a main control board. Background Technology

[0002] Chinese patent application CN118519012A discloses an automatic circuit board inspection device, the structure of which includes: a top frame including a stabilizing frame, a limit frame installed at the bottom of the stabilizing frame, a synchronizer provided on the side of the limit frame, a roller installed on the transmission part of the synchronizer, a rotating arm provided in the groove of the limit frame, and rollers installed on both sides of the limit frame. The improved device drives the rollers through the synchronizer to drive the cleaning belt, causing it to reciprocate to polish the surface of the ejector pins. The ejector pins are nested in the gap between the mesh plate and the limit frame. The mesh plate is designed with a mesh structure and has a certain thickness to prevent surface damage. In order to prevent the mesh plate from collapsing, a rotating arm is installed inside the limit frame. The rotation of the rotating arm supports the ejector pins to elastically engage when they penetrate the mesh plate and come into contact with the cleaning belt, thus avoiding damage to the ejector pins. However, this device still has the following problems:

[0003] The testing device controls the flow of the circuit board to be tested through a material changing gripper and completes the testing operation of the circuit board in conjunction with the vertical movement of the testing frame. However, the device requires frequent waiting for the movement of the testing frame during operation, resulting in a slow testing speed and making it difficult to meet the continuous testing requirements for batch circuit boards.

[0004] Based on this, the present invention designs a fully automatic testing device and method for the main control board to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a fully automatic testing device and method for main control boards.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automated testing device for main control boards, including a base frame;

[0008] A circular track is fixedly installed on the base frame, and multiple tooling plates that can slide along the circular track are provided on the circular track. The tooling plates are used to load the central control plate.

[0009] The left end of the base frame is equipped with a continuous feeding mechanism for continuously conveying the central control plate to the tooling plate; the tooling plate is equipped with an automatic positioning mechanism, which is used to automatically clamp or release the central control plate on the tooling plate according to the position of the tooling plate on the circular track, so as to achieve precise positioning of the tooling plate; a vision inspection device is provided on the front side of the upper end of the base frame.

[0010] A continuous detection mechanism is provided on the rear side of the upper end of the base frame. The continuous detection mechanism includes a rotary horizontal holding support mechanism and a detection mechanism. The rotary horizontal holding support mechanism is set on the base frame, and several sets of detection mechanisms are installed on the moving end of the rotary horizontal holding support mechanism. The rotary horizontal holding support mechanism is used to control the detection mechanism to perform circular motion while maintaining a horizontal posture, so that the detection mechanism can detect the central control plate on the tooling plate during the movement of the tooling plate.

[0011] Furthermore, the rotary horizontal holding support mechanism includes a frame, a driving rotating wheel, a driven rotating wheel, an upper rotating shaft, a lower rotating shaft, a support plate, and a first motor. Two frames are provided and distributed on the inner and outer sides of the circular track, and the lower end of the frame is fixedly connected to the base frame. The top of the two frames is rotatably mounted with a driving rotating wheel and a driven rotating wheel, respectively. The first motor is fixedly mounted on the top of the frame, and the output end of the first motor is fixedly connected to the driving rotating wheel.

[0012] The outer edge of the active rotating wheel is rotatably mounted with multiple upper rotating shafts in a circumferential array at equal intervals, and the outer edge of the driven rotating wheel is rotatably mounted with multiple lower rotating shafts corresponding to the upper rotating shafts in a circumferential array at equal intervals. The corresponding upper and lower rotating shafts are on the same vertical plane, and a support plate is set between them. The upper and lower rotating shafts are rotatably connected to the lower end of the upper end of the support plate, respectively. Each support plate is equipped with a detection mechanism.

[0013] Furthermore, the detection mechanism includes a vertical rod, a detection frame, test probes, and a counterweight. The vertical rods are fixedly installed at the four corners of the support plate. The detection frame is slidably connected to the vertical rods. Multiple test probes for cooperating in the detection of the central control board are fixedly installed on the detection frame. A counterweight is also fixedly installed on the detection frame.

[0014] Furthermore, the tooling plate is fixedly installed with sliding sleeves at its four corners, which correspond one-to-one with the vertical rods and are slidably connected to them. The connected tooling plates are connected by connecting plates, and the two ends of the connecting plates are respectively hinged to the tooling plates.

[0015] Furthermore, the automatic positioning mechanism includes a bidirectional clamping assembly and a driving assembly. Two sets of bidirectional clamping assemblies are provided and symmetrically distributed on both sides of the tooling plate. Two sets of driving assemblies are provided on the base frame and correspond one-to-one with the bidirectional clamping assemblies. The driving assemblies are used to drive the bidirectional clamping assemblies to perform clamping and releasing operations on the central control plate.

[0016] Furthermore, the bidirectional clamping assembly includes a crossbar, a first clamping block, a second clamping block, and a linkage plate. The crossbar is located on the lower side of the tooling plate, and multiple first clamping blocks are fixedly installed on the crossbar. Linkage plates are symmetrically fixedly installed at both ends of the crossbar. The tooling plate has multiple sliding grooves that are respectively limited and slidably connected to the first clamping blocks and the second clamping blocks. A linkage rod is fixedly installed at the lower end of the second clamping block, and an inclined groove that is limited and slidably connected to the linkage rod is provided on the linkage plate.

[0017] Furthermore, the drive assembly includes a bracket, a slide rod, a ball bearing, a spring, and a slide rail assembly. The bracket is fixedly installed at the lower end of the tooling plate. The slide rod is slidably connected to the bracket. One end of the slide rod is fixedly connected to the crossbar, and the other end of the slide rod is provided with a ball bearing. A slide rail assembly that is slidably connected to the ball bearing is fixedly installed on the base frame. The spring is sleeved on the outside of the slide rod, and both ends of the spring are fixedly connected to the bracket and the crossbar, respectively.

[0018] Furthermore, the continuous feeding mechanism includes a lower feeding assembly, an upper feeding assembly, a material transfer mechanism, a feeding conveyor line, side plates, and limiting guide plates. The lower feeding assembly and the upper feeding assembly are respectively located on the lower and upper sides of the base frame sidewall. The feeding conveyor line is located on the left side of the base frame and can be a belt conveyor. The side plates are fixedly connected to the base frame sidewall, and multiple limiting guide plates are fixedly connected to the side plates, and the limiting guide plates cooperate to form a material placement space. A material transfer mechanism is installed at the upper end of the side plates to transfer the central control plate at the top of the upper feeding assembly to the tooling plate.

[0019] Furthermore, the upper feeding assembly includes a servo vertical moving assembly, a telescopic assembly, and top rods. The servo vertical moving assembly is mounted on the side wall of the base frame, and the telescopic assembly is mounted on the moving end of the servo vertical moving assembly. Multiple top rods are mounted on the moving end of the telescopic assembly.

[0020] To better achieve the objectives of this invention, this invention also provides a method for using a fully automated main control board testing device, comprising the following steps:

[0021] Step 1: The feeding conveyor line transports the entire stack of central control panels toward the base frame. Once the central control panel reaches the set position, the lower feeding assembly lifts the entire stack of central control panels upward.

[0022] Step 2: After the central control panel rises to the set height, the telescopic component controls the top rod to extend, and the top rod drives the entire stack of central control panels to move upward by servo.

[0023] Step 3: The material transfer mechanism moves the topmost central control plate on the top rod to the tooling plate. Each time a central control plate is taken, the top rod drives the central control plate to rise a distance equal to the thickness of the central control plate, so that the highest point of the central control plate is always at the same height.

[0024] Step 4: The tooling plate slides along the circular track. When the ball rolls on the slide rail assembly, the slide bar is pushed inward to the tooling plate, so that the first and second clamping blocks of the two sets of bidirectional clamping assemblies cooperate to clamp and position the central control plate from four directions.

[0025] Step 5: The central control panel first undergoes a visual inspection process, including photographic testing.

[0026] Step Six: Insert the vertical rod into the sliding sleeve of the tooling plate, so that the support plate and the tooling plate move synchronously in the horizontal direction. The test probe will press on the central control plate to perform the test operation on the central control plate.

[0027] Step 7: After the inspection is completed, the ball bearings roll on the track assembly, and the spring drives the slide bar to reset, releasing the central control plate;

[0028] In addition, once the remaining amount of the central control plate on the top rod reaches the set value, the lower feeding component drives the next batch of central control plates to move vertically upward until the upper and lower stacks of central control plates are combined into one stack. The top rod retracts and resets, and the lower feeding component drives the combined stack of central control plates to continue moving upward to supply material until the top rod extends again to support the central control plate for continuous material supply.

[0029] Compared with the prior art, the beneficial effects of this invention are as follows: 1. The tooling plate flows counterclockwise on the circular track. After the continuous feeding mechanism transfers the central control plate to the tooling plate, the automatic positioning mechanism clamps and positions the central control plate on the tooling plate. The visual inspection device takes pictures of the central control plate for inspection. The rotary horizontal holding support mechanism controls the inspection mechanism to perform circular motion while maintaining a horizontal posture. This allows the inspection mechanism to inspect the central control plate on the tooling plate during the movement of the tooling plate, realizing continuous and efficient inspection of the central control plate, reducing the standby time of related equipment, and effectively improving the monitoring efficiency of the central control plate. Finally, the central control plate that has completed the inspection operation moves to the left side of the base frame. The automatic positioning mechanism releases the central control plate to remove it for sorting and discharge.

[0030] 2. The sliding of the slide bar can be controlled by the rolling of the ball on the slide rail assembly, so that the first and second clamping blocks of the two sets of bidirectional clamping components can cooperate to clamp and position the central control plate from four directions, so as to avoid the position of the central control plate shifting during the movement of the tooling plate, ensure the precise alignment of the test probe with the central control plate, ensure the accuracy of the test results, and automatically release the central control plate by the first and second clamping blocks when discharging the material.

[0031] 3. The upper and lower feeding components work together to achieve continuous feeding of the central control board. The equipment does not need to stop to wait for the central control board to be replenished, which helps to improve the detection efficiency of the central control board. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0033] Figure 1 This invention provides a three-dimensional fully automatic testing device for a main control board. Figure 1 ;

[0034] Figure 2 This is a front view of a fully automatic main control board testing device according to the present invention;

[0035] Figure 3 This invention provides a three-dimensional fully automatic testing device for a main control board. Figure 2 ;

[0036] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0037] Figure 5 This is a three-dimensional structural view of the automatic positioning mechanism of the present invention;

[0038] Figure 6 The structural three-dimensional representation of the continuous detection mechanism of the present invention Figure 1 ;

[0039] Figure 7 The structural three-dimensional representation of the continuous detection mechanism of the present invention Figure 2 ;

[0040] Figure 8 The structural three-dimensional representation of the continuous feeding mechanism of the present invention Figure 1 ;

[0041] Figure 9 The structural three-dimensional representation of the continuous feeding mechanism of the present invention Figure 2 .

[0042] The labels in the diagram represent:

[0043] 10. Base frame; 11. Circular track; 12. Tooling plate; 2. Automatic positioning mechanism; 21. Bidirectional clamping assembly; 211. Crossbar; 212. First clamping block; 213. Second clamping block; 214. Linkage plate; 215. Linkage rod; 216. Slide groove; 217. Inclined groove; 22. Drive assembly; 221. Bracket; 222. Slide rod; 223. Ball bearing; 224. First slide rail; 225. Second slide rail; 226. Spring; 31. Rotary horizontal holding support mechanism; 311. Upright frame; 312. Driving rotating wheel; 313. Driven rotating wheel; 314. Upper rotating shaft; 315. Lower rotating shaft; 316. Support plate; 317. First motor; 32. Detection mechanism; 321. Vertical rod; 322. Detection frame 323. Test probe; 324. Counterweight; 325. Vertical chute; 4. Continuous feeding mechanism; 41. Lower feeding assembly; 411. Horizontal plate; 412. Top block; 413. Push rod; 42. Upper feeding assembly; 421. Lead screw; 422. Guide rod; 423. Second motor; 424. Vertical moving frame; 425. Horizontal moving frame; 426. Horizontal moving cylinder; 427. Top rod; 428. Clearance groove; 43. Material transfer mechanism; 431. Horizontal frame; 432. Linear module; 433. Lifting cylinder; 434. Support frame; 435. Clamping cylinder; 436. Clamping plate; 44. Feeding conveyor line; 45. Side plate; 46. Limiting guide plate; 5. Sliding sleeve; 6. Connecting plate; 7. Vision inspection device; 8. Central control plate. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0045] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0046] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-2 A fully automatic test device for main control board, including a base frame 10;

[0047] A ring track 11 is fixedly installed on the base frame 10. A plurality of tooling plates 12 that can slide along the ring track 11 are provided on the ring track 11. The tooling plates 12 are used to load the central control plate 8.

[0048] The left end of the base frame 10 is provided with a continuous feeding mechanism 4 for continuously conveying the central control plate 8 to the tooling plate 12; the tooling plate 12 is provided with an automatic positioning mechanism 2, which is used to automatically clamp or release the central control plate 8 on the tooling plate 12 according to the position of the tooling plate 12 on the circular track 11, so as to achieve precise positioning of the tooling plate 12; a vision inspection device 7 is provided on the front side of the upper end of the base frame 10, which adopts mature technology in this field and is used to perform photographic inspection of the central control plate 8;

[0049] A continuous detection mechanism 3 is provided on the rear side of the upper end of the base frame 10. The continuous detection mechanism 3 includes a rotary horizontal holding support mechanism 31 and a detection mechanism 32. The rotary horizontal holding support mechanism 31 is set on the base frame 10, and several sets of detection mechanisms 32 are installed on the moving end of the rotary horizontal holding support mechanism 31. The rotary horizontal holding support mechanism 31 is used to control the detection mechanism 32 to perform circular motion while maintaining a horizontal posture, so that the detection mechanism 32 can detect the central control plate 8 on the tooling plate 12 during the movement of the tooling plate 12.

[0050] In this invention, the tooling plate 12 flows counterclockwise on the circular track 11. After the continuous feeding mechanism 4 transfers the central control plate 8 onto the tooling plate 12, the automatic positioning mechanism 2 clamps and positions the central control plate 8 on the tooling plate 12, and the visual inspection device 7 takes pictures of the central control plate 8 for inspection. Meanwhile, the rotary horizontal holding support mechanism 31 controls the inspection mechanism 32 to perform circular motion while maintaining a horizontal posture, so that the inspection mechanism 32 can inspect the central control plate 8 on the tooling plate 12 during the movement of the tooling plate 12, realizing continuous and efficient inspection of the central control plate 8, reducing the standby time of related equipment, and effectively improving the monitoring efficiency of the central control plate 8. Finally, the central control plate 8, after completing the inspection, moves to the left side of the base frame 10, and the automatic positioning mechanism 2 releases the central control plate 8 to remove it for sorting and discharge.

[0051] Please see Figure 6 and Figure 7 The rotary horizontal holding support mechanism 31 includes a frame 311, a driving rotating wheel 312, a driven rotating wheel 313, an upper rotating shaft 314, a lower rotating shaft 315, a support plate 316, and a first motor 317. Two frames 311 are provided and distributed on the inner and outer sides of the annular track 11. The lower end of the frame 311 is fixedly connected to the base frame 10. The driving rotating wheel 312 and the driven rotating wheel 313 are rotatably mounted on the top of the two frames 311, respectively. The first motor 317 is fixedly mounted on the top of the frame 311, and the output end of the first motor 317 is fixedly connected to the driving rotating wheel 312.

[0052] The outer edge of the active rotating wheel 312 is rotatably mounted with multiple upper rotating shafts 314 in a circumferential array at equal intervals. The outer edge of the driven rotating wheel 313 is rotatably mounted with multiple lower rotating shafts 315 corresponding to the upper rotating shafts 314 in a circumferential array at equal intervals. The corresponding upper rotating shafts 314 and lower rotating shafts 315 are on the same vertical plane, and a support plate 316 is provided between them. The upper rotating shafts 314 and lower rotating shafts 315 are rotatably connected to the lower end of the upper end of the support plate 316, respectively. Each support plate 316 is provided with a detection mechanism 32.

[0053] Furthermore, at least three support plates 316 are provided, so that at least two central control plates 8 on the base frame 10 are detected by the detection mechanism 32 at the same time;

[0054] The detection mechanism 32 includes a vertical rod 321, a detection frame 322, test probes 323, and a counterweight 324. The vertical rods 321 are fixedly installed at the four corners of the support plate 316. The detection frame 322 is slidably connected to the vertical rods 321. Multiple test probes 323 for cooperating in the detection of the central control board 8 are fixedly installed on the detection frame 322. The counterweight 324 is also fixedly installed on the detection frame 322. A vertical groove 325 is opened on the vertical rod 321. A stop block for sliding in the vertical groove 325 is fixedly installed on the detection frame 322 to prevent the detection frame 322 from detaching from the vertical rod 321.

[0055] The tooling plate 12 is fixedly installed with sliding sleeves 5 at its four corners, which correspond one-to-one with the vertical rod 321 and are slidably connected. The connected tooling plates 12 are connected by connecting plates 6, and the two ends of the connecting plates 6 are respectively hinged to the tooling plates 12. Thus, the first motor 317 drives the active rotating wheel 312 and the driven rotating wheel 313 to rotate. With the cooperation of the vertical rod 321 and the sliding sleeves 5, the tooling plates 12 can be controlled to slide synchronously along the circular track 11. This ensures that the test probe 323 can be accurately aligned with the central control plate 8 during testing. Furthermore, the operation of the connecting plate 6 controls the tooling plates 12 to flow synchronously on the base frame 10. This achieves the function of accurately aligning and testing the central control plate 8 and synchronously flowing the tooling plates 12 using only the first motor 317 as a power source.

[0056] In this invention, the first motor 317 drives the active rotating wheel 312 to rotate, and causes the driven rotating wheel 313 to rotate synchronously. During the rotation of the active rotating wheel 312 and the driven rotating wheel 313, the upper rotating shaft 314 and the lower rotating shaft 315 are always on the same vertical plane, so that the support plate 316 always maintains a horizontal posture. When the vertical rod 321 is inserted into the sliding sleeve 5 of the tooling plate 12, the horizontal displacement of the support plate 316 and the tooling plate 12 is consistent. The test probe 323 will press on the central control plate 8 to perform the test operation on the central control plate 8. During the translation of the tooling plate 12, the test probe 323 is always in contact with the central control plate 8 by the sliding of the test frame 322 on the vertical rod 321.

[0057] To ensure stable testing of the central control board 8 by the test probe 323, guarantee reliable electrical contact of the test probe 323, and avoid mechanical damage to the test probe 323, the contact force between each test probe 323 and the central control board 8 is typically between 50 and 150 grams of force. Therefore, the total weight of the counterweight 324 should be set as the product of the number of test probes 323 and the contact force of a single test probe 323, with an additional margin of about 10%. In high-density areas of the test probes 323, the force distribution should be adjusted according to the layout, for example, by adding a 10% margin in the central area, so that the contact force of all test probes 323 is the same and stable during the testing process.

[0058] Please see Figure 2 , Figure 3 and Figure 4 The automatic positioning mechanism 2 includes a bidirectional clamping assembly 21 and a driving assembly 22. The bidirectional clamping assembly 21 is provided in two sets and symmetrically distributed on both sides of the tooling plate 12. The two sets of driving assemblies 22 are provided on the base frame 10 and correspond one-to-one with the bidirectional clamping assembly 21. The driving assembly 22 is used to drive the bidirectional clamping assembly 21 to perform clamping and releasing operations on the central control plate 8.

[0059] The bidirectional clamping assembly 21 includes a crossbar 211, a first clamping block 212, a second clamping block 213, and a linkage plate 214. The crossbar 211 is disposed on the lower side of the tooling plate 12. Multiple first clamping blocks 212 are fixedly installed on the crossbar 211. Linkage plates 214 are symmetrically fixedly installed at both ends of the crossbar 211. Multiple sliding grooves 216 are provided on the tooling plate 12, which are respectively limited and slidably connected to the first clamping blocks 212 and the second clamping blocks 213. A linkage rod 215 is fixedly installed at the lower end of the second clamping block 213. An inclined groove 217 is provided on the linkage plate 214, which is limited and slidably connected to the linkage rod 215.

[0060] The drive assembly 22 includes a bracket 221, a slide rod 222, a ball bearing 223, a spring 226, and a slide rail assembly. The bracket 221 is fixedly installed at the lower end of the tooling plate 12. The slide rod 222 is slidably connected to the bracket 221. One end of the slide rod 222 is fixedly connected to the crossbar 211, and the other end of the slide rod 222 is provided with a ball bearing 223. A slide rail assembly that is rollingly connected to the ball bearing 223 is fixedly installed on the base frame 10. The spring 226 is sleeved on the outside of the slide rod 222, and both ends of the spring 226 are fixedly connected to the bracket 221 and the crossbar 211, respectively.

[0061] The slide rail assembly consists of first slide rails 224 on the front and rear sides of the base frame 10 and second slide rails 225 on the left and right sides of the base frame 10. The distance between the first slide rail 224 and the tooling plate 12 is smaller than the distance between the second slide rail 225 and the tooling plate 12. When the ball bearing 223 rolls on the first slide rail 224, it pushes the crossbar 211 towards the inside of the tooling plate 12 through the slide rod 222, thereby clamping and positioning the central control plate 8. When the ball bearing 223 rolls on the second slide rail 225, it drives the slide rod 222 to reset through the spring 226, thereby releasing the central control plate 8.

[0062] In this invention, the sliding of the slide bar 222 can be controlled by the rolling of the ball bearing 223 on the slide rail assembly. When the slide bar 222 drives the crossbar 211 to slide inward to the tooling plate 12, the crossbar 211 drives the first clamping block 212 to move closer to the central control plate 8. The crossbar 211 also moves closer to the central control plate 8 through the cooperation of the inclined groove 217 and the sliding groove 216 on the linkage plate 214. Thus, the first clamping block 212 and the second clamping block 213 of the two sets of bidirectional clamping assemblies 21 cooperate to clamp and position the central control plate 8 from four directions, so as to avoid the position of the central control plate 8 from shifting during the movement of the tooling plate 12, ensuring the precise alignment of the test probe 323 with the central control plate 8, and ensuring the accuracy of the test results.

[0063] Please see Figure 8 and Figure 9 The continuous feeding mechanism 4 includes a lower feeding assembly 41, an upper feeding assembly 42, a material transfer mechanism 43, a feeding conveyor line 44, a side plate 45, and a limiting guide plate 46. The lower feeding assembly 41 and the upper feeding assembly 42 are respectively arranged on the lower and upper sides of the side wall of the base frame 10. The feeding conveyor line 44 is arranged on the left side of the base frame 10 and can be a belt conveyor. The side plate 45 is fixedly connected to the side wall of the base frame 10, and multiple limiting guide plates 46 are fixedly connected to the side plate 45, and the limiting guide plates 46 cooperate to form a material placement space. A material transfer mechanism 43 is installed on the upper end of the side plate 45 for transferring the central control plate 8 at the top of the upper feeding assembly 42 to the tooling plate 12.

[0064] The lower feeding assembly 41 includes a horizontal plate 411, top blocks 412, and push rods 413. The horizontal plate 411 is vertically slidable on the left end of the base frame 10 via a slide rail slider limiting structure. The push rod 413 is fixedly connected to the base frame 10, and the output end of the push rod 413 is fixedly connected to the horizontal plate 411. Multiple top blocks 412 are fixedly installed on the horizontal plate 411 along its length.

[0065] The upper feeding assembly 42 includes a servo vertical moving assembly, a telescopic assembly, and a top rod 427. The servo vertical moving assembly is installed on the side wall of the base frame 10. The moving end of the servo vertical moving assembly is equipped with a telescopic assembly. The moving end of the telescopic assembly is equipped with multiple top rods 427. A clearance groove 428 for the movement of the top rods 427 is provided on the horizontal plate 411.

[0066] The vertical movement assembly includes a lead screw 421, a guide rod 422, a second motor 423, and a vertical moving frame 424. The lead screw 421 is rotatably connected to the base frame 10 via a bearing. The guide rod 422 is fixedly connected to the base frame 10. The vertical moving frame 424 is threadedly connected to the lead screw 421 via a threaded sleeve and slidably connected to the guide rod 422. The second motor 423 is fixedly connected to the base frame 10, and the output end of the second motor 423 is fixedly connected to the lead screw 421.

[0067] The telescopic assembly includes a horizontal moving frame 425 and a horizontal moving cylinder 426. The horizontal moving frame 425 is horizontally slidable on the vertical moving frame 424 via a slide rail slider limiting structure. The horizontal moving cylinder 426 is fixedly connected to the vertical moving frame 424, and the output end of the horizontal moving cylinder 426 is fixedly connected to the horizontal moving frame 425. The push rod 427 is fixedly connected to the horizontal moving frame 425.

[0068] The material transfer mechanism 43 includes a cross frame 431, a linear module 432, a lifting cylinder 433, a support frame 434, a clamping cylinder 435, and a clamping plate 436. The cross frame 431 is fixedly installed on the upper end of the side plate 45. The linear module 432 is fixedly installed on the cross frame 431. The moving end of the linear module 432 is fixedly connected to the lifting cylinder 433. The output end of the lifting cylinder 433 is fixedly connected to the support frame 434. The clamping cylinders 435 are symmetrically fixedly installed on the front and rear sides of the support frame 434. The output end of the clamping cylinder 435 is fixedly installed with a clamping plate for clamping the central control plate 8.

[0069] In this invention, the feeding conveyor line 44 transports the entire stack of central control plates 8 towards the base frame 10. When the central control plate 8 reaches the set position, the push rod 413 drives the horizontal plate 411 to move vertically upward, causing the entire stack of central control plates 8 to be lifted by the top block 412. When the clearance groove 428 of the horizontal plate 411 aligns with the top rod 427, the transverse cylinder 426 drives the transverse frame 425 to move horizontally, causing the top rod 427 to pass through the clearance groove 428 of the horizontal plate 411. Subsequently, the second motor 423 drives the lead screw 421 to rotate, causing the vertical frame 424 to move vertically upward under the limiting action of the guide rod 422. Then, the top rod 427 drives the entire stack of central control plates 8 to move servo-up to the set height. The clamping cylinder 435 controls the clamping plate 436 to hold the central control plate 8 in place. After the plate 8 is picked up, the linear module 432 and the lifting cylinder 433 work together to move the central control plate 8 onto the tooling plate 12. Each time a central control plate 8 is picked up, the push rod 427 drives the central control plate 8 to rise by the thickness of one central control plate 8, so that the highest point of the central control plate 8 is always at the same height. When the remaining amount of central control plates 8 on the push rod 427 reaches the set value, the top block 412 drives the next batch of central control plates 8 to move vertically upward until the upper and lower stacks of central control plates 8 are combined into one stack. The push rod 427 retracts and resets. The central control plates 8 in the combined stack are then moved upward to continue feeding material until the push rod 427 is aligned with the clearance groove 428 of the horizontal plate 411 again. Then the push rod 427 extends to support the central control plate 8, and the feeding process is repeated.

[0070] Example 2: In some embodiments, such as Figures 1-9 As shown, in a preferred embodiment of the present invention, a method for using a fully automated main control board testing device includes the following steps:

[0071] Step 1: The feeding conveyor line 44 conveys the entire stack of central control plates 8 towards the base frame 10. When the central control plate 8 reaches the set position, the lower feeding component 41 lifts the entire stack of central control plates 8 upward.

[0072] Step 2: After the central control plate 8 rises to the set height, the telescopic component controls the top rod 427 to extend, and the top rod 427 drives the entire stack of central control plates 8 to move upward by servo.

[0073] Step 3: The material transfer mechanism 43 transfers the topmost central control plate 8 on the top rod 427 to the tooling plate 12. Each time a central control plate 8 is taken, the top rod 427 drives the central control plate 8 to rise by the thickness of one central control plate 8, so that the highest point of the central control plate 8 is always at the same height.

[0074] Step 4: The tooling plate 12 slides along the circular track 11. When the ball bearing 223 rolls on the slide rail assembly, the slide bar 222 is pushed inward to the tooling plate 12, so that the first clamping block 212 and the second clamping block 213 of the two sets of bidirectional clamping assemblies 21 cooperate to clamp and position the central control plate 8 from four directions.

[0075] Step 5: The central control panel 8 first undergoes a photo inspection by the vision inspection device 7;

[0076] Step 6: Insert the vertical rod 321 into the sliding sleeve 5 of the tooling plate 12, so that the support plate 316 and the tooling plate 12 move synchronously in the horizontal direction. The test probe 323 will press on the central control plate 8 to perform the test operation on the central control plate 8.

[0077] Step 7: After the inspection is completed, the ball bearing 223 rolls on the track assembly, and the spring 226 drives the slide bar 222 to reset and release the central control plate 8;

[0078] In addition, after the remaining amount of the central control plate 8 on the top rod 427 reaches the set value, the lower feeding component 41 drives the next batch of central control plates 8 to move vertically upward until the upper and lower stacks of central control plates 8 are combined into one stack. The top rod 427 retracts and resets, and the lower feeding component 41 drives the combined stack of central control plates 8 to continue to move upward to supply material until the top rod 427 extends again to support the central control plate 8 for continuous material supply.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A master control board full-automatic test equipment, comprising a base frame (10), characterized in that: a plurality of tooling plates (12) capable of sliding along the annular track (11) are fixedly installed on the base frame (10), and the tooling plates (12) are used for loading the master control board (8); a continuous feeding mechanism (4) for continuously feeding the master control board (8) to the tooling plate (12) is arranged at the left end of the base frame (10); an automatic positioning mechanism (2) is arranged on the tooling plate (12), and the automatic positioning mechanism (2) is used for automatically clamping or releasing the master control board (8) on the tooling plate (12) according to the position of the tooling plate (12) on the annular track (11), so as to realize accurate positioning of the tooling plate (12); a visual detection device (7) is arranged on the front side of the upper end of the base frame (10); a continuous detection mechanism (3) is arranged on the rear side of the upper end of the base frame (10), the continuous detection mechanism (3) comprises a rotary horizontal holding support mechanism (31) and a detection mechanism (32), the rotary horizontal holding support mechanism (31) is arranged on the base frame (10), and a plurality of groups of detection mechanisms (32) are installed on the moving end of the rotary horizontal holding support mechanism (31); the rotary horizontal holding support mechanism (31) is used for controlling the detection mechanism (32) to perform circumferential motion while maintaining a horizontal posture, so that the detection mechanism (32) detects the master control board (8) on the tooling plate (12) during the movement of the tooling plate (12); the rotary horizontal holding support mechanism (31) comprises a stand (311), a driving rotary wheel (312), a driven rotary wheel (313), an upper rotary shaft (314), a lower rotary shaft (315), a support plate (316) and a first motor (317), the stand (311) is arranged on the inner and outer sides of the annular track (11), and the lower end of the stand (311) is fixedly connected with the base frame (10); the top of each stand (311) is rotatably provided with the driving rotary wheel (312) and the driven rotary wheel (313), respectively; the first motor (317) is fixedly installed on the top of the stand (311), and the output end of the first motor (317) is fixedly connected with the driving rotary wheel (312); a plurality of upper rotary shafts (314) are rotatably installed on the outer edge of the driving rotary wheel (312) in a circumferential array at equal intervals, a plurality of lower rotary shafts (315) corresponding to the upper rotary shafts (314) are rotatably installed on the outer edge of the driven rotary wheel (313) in a circumferential array at equal intervals; the corresponding upper rotary shaft (314) and lower rotary shaft (315) are in the same vertical plane, and the support plate (316) is arranged between the upper rotary shaft (314) and the lower rotary shaft (315); the upper rotary shaft (314) and the lower rotary shaft (315) are rotatably connected with the upper end and the lower end of the support plate (316), respectively; and each support plate (316) is provided with the detection mechanism (32). ​ ​ ​ ​ ​ The detection mechanism (32) comprises a vertical rod (321), a detection frame (322), a test probe (323) and a counterweight (324), the vertical rod (321) is fixedly installed at four corners of the support plate (316), the detection frame (322) is limitingly and slidably connected with the vertical rod (321), and a plurality of test probes (323) for cooperating with the detection of the centering plate (8) are fixedly installed on the detection frame (322); the counterweight (324) is also fixedly installed on the detection frame (322). The four corners of the tool plate (12) are fixedly installed with sliding sleeves (5) corresponding to the vertical rods (321) and being limitingly and slidably connected, the connected tool plates (12) are connected through the connecting plates (6), and the two ends of the connecting plate (6) are hingedly connected with the tool plates (12) respectively.

2. The master control board automatic test equipment according to claim 1, characterized in that, The automatic positioning mechanism (2) comprises a bidirectional clamping assembly (21) and a driving assembly (22), the bidirectional clamping assembly (21) is provided with two groups and is symmetrically distributed on the two sides of the tool plate (12), the two groups of driving assemblies (22) are provided on the base frame (10) and correspond to the bidirectional clamping assembly (21), and the driving assembly (22) is used for driving the bidirectional clamping assembly (21) to clamp and release the centering plate (8).

3. The master control board automatic test equipment according to claim 2, characterized in that, The bidirectional clamping assembly (21) comprises a cross rod (211), a first clamping block (212), a second clamping block (213) and a linkage plate (214), the cross rod (211) is arranged on the lower side of the tool plate (12), a plurality of first clamping blocks (212) are fixedly installed on the cross rod (211), and linkage plates (214) are fixedly installed at the two ends of the cross rod (211) in a symmetrical mode; a plurality of sliding grooves (216) are formed in the tool plate (12) and are limitingly and slidably connected with the first clamping blocks (212) and the second clamping blocks (213) respectively, a linkage rod (215) is fixedly installed at the lower end of the second clamping block (213), and an inclined groove (217) is formed in the linkage plate (214) and is limitingly and slidably connected with the linkage rod (215).

4. The master control board automatic test equipment according to claim 3, characterized in that, The driving assembly (22) comprises a bracket (221), a sliding rod (222), a ball (223), a spring (226) and a sliding rail assembly, the bracket (221) is fixedly installed at the lower end of the tool plate (12), the sliding rod (222) is limitingly and slidably connected with the bracket (221), one end of the sliding rod (222) is fixedly connected with the cross rod (211), the other end of the sliding rod (222) is provided with the ball (223), the sliding rail assembly is fixedly installed on the base frame (10) and is rollingly connected with the ball (223); the spring (226) is sleeved outside the sliding rod (222), and the two ends of the spring (226) are fixedly connected with the bracket (221) and the cross rod (211) respectively.

5. The master control board automatic test equipment according to claim 4, characterized in that, The continuous feeding mechanism (4) comprises a lower feeding assembly (41), an upper feeding assembly (42), a material moving mechanism (43), a feeding conveying line (44), a side plate (45) and a limiting guide plate (46), the lower feeding assembly (41) and the upper feeding assembly (42) are arranged at the lower side and the upper side of the side wall of the base frame (10) respectively, the feeding conveying line (44) is arranged at the left side of the base frame (10), the side plate (45) is fixedly connected with the side wall of the base frame (10), a plurality of limiting guide plates (46) are fixedly connected with the side plate (45), and the limiting guide plates (46) cooperate to form a material placing space; the material moving mechanism (43) is installed at the upper end of the side plate (45) and is used for moving the center control plate (8) at the top of the upper feeding assembly (42) to the tool plate (12).

6. The master control board automatic test equipment according to claim 5, wherein, The upper feeding assembly (42) comprises a servo vertical moving assembly, a telescopic assembly and a jacking rod (427), the servo vertical moving assembly is installed on the side wall of the base frame (10), the moving end of the servo vertical moving assembly is provided with the telescopic assembly, and the moving end of the telescopic assembly is provided with a plurality of jacking rods (427).

7. A method of use of the master control board automated test equipment of claim 6, wherein, The method comprises the following steps: Step one: the feeding conveying line (44) conveys the whole stack of center control plates (8) to the direction of the base frame (10), when the center control plate (8) reaches the set position, the lower feeding assembly (41) lifts the whole stack of center control plates (8) upward; Step two: after the center control plate (8) is lifted to the set height, the telescopic assembly controls the jacking rods (427) to extend, and the whole stack of center control plates (8) is lifted by the jacking rods (427); Step three: the material moving mechanism (43) moves the topmost center control plate (8) to the tool plate (12), and every time one center control plate (8) is taken, the jacking rods (427) lift the center control plate (8) by a distance of the thickness of one center control plate (8), so that the highest part of the center control plate (8) is always at the same height; Step four: the tool plate (12) slides along the annular track (11), when the ball (223) rolls on the slide rail assembly, the slide rod (222) is pushed to the inner side of the tool plate (12), so that the first clamping block (212) and the second clamping block (213) of the two sets of bidirectional clamping assemblies (21) clamp and position the center control plate (8) from four directions; Step five: the center control plate (8) is first detected by the visual detection device (7); Step six: the vertical rod (321) is inserted into the sliding sleeve (5) of the tool plate (12), so that the support plate (316) and the tool plate (12) move synchronously in the horizontal direction, and the test probe (323) is pressed on the center control plate (8) to detect the center control plate (8); Step seven: after the detection is completed, the ball (223) rolls on the track assembly, and the slide rod (222) is reset by the spring (226) to release the center control plate (8). In addition, after the remaining amount of the middle control plate (8) on the top rod (427) reaches a set value, the lower feeding assembly (41) drives the next batch of middle control plates (8) to vertically move upwards until the two stacks of middle control plates (8) are combined into one stack, the top rod (427) is retracted and reset, and the combined stack of middle control plates (8) is continuously fed upwards by the lower feeding assembly (41) until the top rod (427) is extended again to support the middle control plate (8) for continuous feeding.

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