Circuit board detection device and detection method

Abstract

The present invention belongs to the technical field of circuit board detection, and discloses a circuit board detection device and detection method, the device includes a conveying component, a detection component is installed on the conveying component, a switching component is installed at the end of the conveying component, a material removal component is installed at the end of the conveying component, and the detection component includes two fixed disks, the outer circumferential walls of the two fixed disks are both sleeved with fixed sleeves, the outer circumferential walls of the two fixed disks are both fixedly connected with a plurality of connecting arms, the connecting arms are respectively embedded in the fixed sleeves and fixedly connected thereto, the inner walls of the connecting arms are both fixedly connected with a first cylinder, and the output end of the first cylinder passes through the connecting arm and is slidably connected thereto. The first motor drives the probe test integrated board to rotate through the fixed disk and the connecting arm, and the second motor adjusts the angle of the installation frame, so that the probe test integrated board is always kept parallel to the circuit board, so as to realize the detection of the circuit board during the movement and improve the detection efficiency of the circuit board.

Description

Technical Field

[0001] The present invention relates to the field of circuit board detection, and more specifically, to a circuit board detection device and a detection method. Background Art

[0002] The working principle of the circuit board detection equipment is to connect the metal probe to the pad or test point on the circuit board, and obtain the key parameters such as voltage and current of the test circuit when the circuit board is powered on, so as to observe whether the tested circuit is conducting normally. The equipment can quantitatively measure the performance of components such as resistors, capacitors, inductors, crystal oscillators, and perform functional tests on diodes, transistors, optocouplers, transformers, relays, operational amplifiers, power modules, etc.

[0003] When using the circuit board detection equipment in the prior art, the circuit board needs to be transported into the equipment, and the circuit board is inspected by closing the detection fixture inside the equipment up and down. During the inspection process, the circuit board needs to stop being transported into the equipment and wait for the closing of the detection fixture and the completion of the inspection. This process is relatively time-consuming, especially in a mass production environment, which will lead to a reduction in the overall inspection efficiency. In view of this, we propose a circuit board detection equipment and a detection method. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a circuit board detection device and a detection method, which can realize the detection of the circuit board during the moving process and improve the detection efficiency of the circuit board.

[0005] The present invention proposes a circuit board detection device, comprising a conveying component, a detection component is installed on the conveying component, a switching component is installed at the end of the conveying component, and a material discharge component is installed at the end of the conveying component;

[0006] The detection assembly includes two fixed disks, the outer circumferential walls of the two fixed disks are sleeved with fixed sleeves, the outer circumferential walls of the two fixed disks are fixedly connected with a plurality of connecting arms, the connecting arms are respectively embedded in the fixing sleeves and fixedly connected thereto, the inner walls of the connecting arms are fixedly connected with a first cylinder, the output end of the first cylinder passes through the connecting arm and is slidably connected thereto, and the output end of the first cylinder is fixedly connected with a connecting block;

[0007] The outer wall of the connection block is fixedly connected to two guide rods, the outer wall of the connection arm is fixedly connected to two positioning blocks, and the ends of the guide rods pass through the positioning blocks and are slidably connected thereto;

[0008] The ends of the connecting blocks are fixedly connected to a fixing plate, the ends of the fixing plates are fixedly connected to a support plate, the outer wall of the support plate is fixedly connected to a bracket, the inner wall of the bracket is fixedly connected to a second motor, an output end of the second motor is fixedly connected to a second rotating shaft, and an output end of the second rotating shaft is fixedly connected to an extension plate, the bottom of the extension plate is fixedly connected to a mounting frame, four corners of the top of the mounting frame are slidably connected to a plurality of support rods, the circumferential outer wall of the support rod is sleeved with a second spring, the bottom of the support rod passes through the mounting frame and extends below it, the circumferential outer wall of the support rod is fixedly connected to a second limiting sleeve, a probe test integrated board is provided below the mounting frame, the probe test integrated board is used to detect the circuit board, the top of the probe test integrated board is fixedly connected to the corresponding plurality of support rods, the outer wall of the fixing sleeve located below is provided with a plurality of supporting plates, the supporting plates are respectively fixedly connected to the corresponding plurality of support rods, one end of the second spring is fixedly connected to the second limiting sleeve, and the other end of the second spring is fixedly connected to the mounting frame.

[0009] Preferably, the conveying assembly comprises a bracket, the top and bottom of the bracket are fixedly connected to support plates, and the bottom of the support plate located below is fixedly connected to a base;

[0010] The outer wall of the bracket is fixedly connected to the first machine base, the top of the first machine base is fixedly connected to the first motor, the inner wall of the first machine base is rotatably connected to the output shaft, both ends of the output shaft are fixedly connected to a worm, the circumferential outer wall of the output shaft is fixedly connected to the second bevel gear, the output end of the first motor is fixedly connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, the inner walls of the two support plates are rotatably connected to the drive shafts, the two ends of the drive shafts are fixedly connected to worm wheels, the two worm wheels are respectively meshed with the worm, the outer wall of the support plate located above is fixedly connected to the top plate, the top of the worm located above is rotatably connected to the top plate, and the bottom of the worm located below is rotatably connected to the base.

[0011] Preferably, two groups of conveyor groups are installed on both sides of the inner wall of the bracket, each group of the conveyor groups is composed of a plurality of first electric rollers, two installation grooves are provided on the top of the bracket, the inner walls of the two installation grooves are fixedly connected to the fixed frame, the inner walls of the two fixed frames are slidably connected to sliders, the tops of the two sliders are fixedly connected to slide rods, the tops of the two slide rods pass through the fixed frame and extend to the outside thereof, the circumferential outer walls of the two slide rods are fixedly connected to the first limit sleeves, the circumferential outer walls of the two slide rods are sleeved with the first springs, the inner walls of the two sliders are rotatably connected to the first rotating shafts, and the circumferential outer walls of the two first rotating shafts are fixedly connected to rollers.

[0012] Preferably, one end of the first spring is fixedly connected to the first limiting sleeve, and the other end of the first spring is fixedly connected to the fixing frame.

[0013] Preferably, the switching assembly includes a fixed frame, both ends of the bottom of the fixed frame are fixedly connected with clamping plates, the top of the fixed frame is fixedly connected with a second cylinder, the output end of the second cylinder passes through the fixed frame and extends to the bottom thereof, the output end of the second cylinder is fixedly connected with a connecting frame, both sides of the connecting frame are rotatably connected with a third rotating shaft, and both ends of the third rotating shaft are fixedly connected with pressure wheels.

[0014] Preferably, a stopper is fixedly connected to one side of the two splints close to each other, a connecting shaft is rotatably connected to one side of the two splints close to each other, a swing arm is fixedly connected to the circumferential outer walls of the two connecting shafts, a plurality of second electric rollers are installed on the relatively close sides of the two swing arms, the ends of the two connecting shafts pass through the splints and extend to the outside thereof, the outer ends of the two connecting shafts are fixedly connected to a third limit sleeve, and the outer ends of the two connecting shafts are sleeved with a torsion spring.

[0015] Preferably, one end of the torsion spring is fixedly connected to the third limiting sleeve, and the other end of the torsion spring is fixedly connected to the clamping plate.

[0016] Preferably, the blanking assembly comprises a support frame, and a plurality of third electric rollers are mounted on both sides of the inner wall of the support frame.

[0017] Preferably, inclined holes are provided on both sides of the support frame, the inner walls of the two inclined holes are rotatably connected with threaded rods, the circumferential outer walls of the two threaded rods are threadedly connected with inclined blocks, the inclined blocks are respectively slidably connected to the inner walls of the inclined holes, the inner wall of the support frame is rotatably connected with a fixed shaft, both ends of the fixed shaft are fixedly connected with a fourth bevel gear, the ends of the two threaded rods are fixedly connected with a third bevel gear, the third bevel gear is meshed with the fourth bevel gear, the outer wall of the support frame is fixedly connected with a second machine base, the top of the second machine base is fixedly connected with a third motor, the output end of the third motor is fixedly connected to the fixed shaft, the outer walls of the two inclined blocks are fixedly connected with a lifting plate, and the outer walls of the two lifting plates are installed with a plurality of fourth electric rollers.

[0018] A detection method for a circuit board detection device comprises the following steps:

[0019] S1, placing the circuit board on the first electric roller on the bracket, clamping and conveying both sides of the circuit board by multiple first electric rollers, and the circuit board is blocked by the rollers during the movement;

[0020] S2, the first motor drives the second bevel gear to rotate through the first bevel gear, the second bevel gear drives the two worms to rotate through the output shaft, the two worms respectively drive the two worm wheels to rotate, the two worm wheels respectively drive the driving shaft to rotate, the driving shaft respectively drives the two fixed plates to rotate, and the two fixed plates respectively drive the multiple connecting arms to rotate;

[0021] S3. The probe test integrated board is driven to rotate by multiple connecting arms at the top. When the probe test integrated board rotates around the driving shaft, the first cylinder moves by pushing the connecting block, so that the connecting block drives the guide rod to slide along the positioning block. The connecting block moves by pushing the mounting frame, thereby adjusting the distance between the probe test integrated board and the driving shaft. At the same time, the second motor drives the second rotating shaft to rotate, and the second rotating shaft drives the mounting frame to rotate, thereby adjusting the angle of the probe test integrated board, so that the probe test integrated board can always remain parallel to the circuit board when it rotates around the driving shaft. At the same time, through the extension and retraction of the first cylinder and when the probe test integrated board contacts the circuit board, under the elastic force of the second spring, it can ensure that the extrusion force of the probe test integrated board on the circuit board remains balanced to avoid poor contact, so that the probe test integrated board is in full contact with the circuit board.

[0022] S4, the support plate is driven to rotate by the multiple connecting arms at the bottom, and the mounting frame is driven to rotate by the second rotating shaft, so as to adjust the angle of the support plate, so that when the support plate rotates around the driving shaft, it can always remain parallel to the circuit board, and when the first cylinder is extended and retracted, and the support plate contacts the circuit board, it can always maintain parallel and straight movement, and effectively support the bottom of the circuit board, so as to prevent the top of the circuit board from bending when being squeezed by the probe test integrated board, causing the circuit board to fall from the bracket and be damaged;

[0023] S5, when the probe test integrated board squeezes the circuit board, the circuit board is pushed to move, so that the circuit board squeezes the roller 121, so that the roller 121 pushes the slide bar 116 to move upward until the circuit board passes the roller 121. At this time, the roller 21 blocks the next circuit board under the elastic force of the first spring 118;

[0024] S6. After the inspection, the circuit board is transported from the first electric roller to the second electric roller, and the qualified circuit board is transported to the third electric roller inside the support frame by the second electric roller. The second cylinder pushes the connecting frame to move, and the connecting frame drives the pressing wheel to move downward to squeeze the circuit board. At this time, the swing arm moves downward with the connecting shaft as the center, so as to transport the circuit board to the fourth electric roller on the lifting plate, so that the unqualified circuit boards can be distinguished and unloaded;

[0025] S7. Drive the fixed shaft to rotate through the third motor, drive the fourth bevel gear to rotate through the fixed shaft, drive the two third bevel gears to rotate through the fourth bevel gear, drive the threaded rods to rotate through the third bevel gears respectively, and drive the lifting plate to move through the inclined block, so that the distance between the third electric roller and the fourth electric roller can be adjusted according to the size of the circuit board, and at the same time ensure that the distance between the lifting plate and the end of the swing arm after rotation remains unchanged, so that the circuit board can slide smoothly onto the fourth electric roller.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the present invention, the first motor drives the multiple connecting arms to rotate respectively through the two fixed plates, and drives the probe test integrated board to rotate respectively through the multiple connecting arms above. When the probe test integrated board rotates around the driving shaft, the second motor drives the second rotating shaft to rotate, and the second rotating shaft drives the installation frame to rotate, so as to adjust the angle of the probe test integrated board, so that the probe test integrated board can always remain parallel to the circuit board when it rotates around the driving shaft. At the same time, through the extension and contraction of the first cylinder and when the probe test integrated board contacts the circuit board, under the elastic force of the second spring, it can ensure that the extrusion force of the probe test integrated board on the circuit board remains balanced to avoid incontact. The probe test integrated board is in full contact with the circuit board, and the support plate is driven to rotate by the multiple connecting arms below, and the mounting frame is driven to rotate by the second rotating shaft, so as to adjust the angle of the support plate, so that the support plate can always remain parallel to the circuit board when rotating around the driving shaft, and can always maintain parallel and straight movement when the first cylinder is extended and retracted, and the bottom of the circuit board is effectively supported to prevent the top of the circuit board from bending when squeezed by the probe test integrated board, causing the circuit board to fall off the bracket and be damaged. Through the above-mentioned detection process, the detection of the circuit board during movement can be realized, thereby improving the detection efficiency of the circuit board.

[0028] 2. In the present invention, the circuit board is conveyed from the first electric roller to the second electric roller, and the qualified circuit board is conveyed to the third electric roller on the inner side of the support frame by the second electric roller. The second cylinder pushes the connecting frame to move, and drives the pressing wheel to move downward to squeeze the circuit board through the connecting frame. At this time, the swing arm moves downward with the connecting shaft as the center, thereby conveying the circuit board to the fourth electric roller on the lifting plate, so that the unqualified circuit boards can be distinguished and unloaded.

[0029] 3. In the present invention, the fixed shaft is driven to rotate by the third motor, the fourth bevel gear is driven to rotate by the fixed shaft, the two third bevel gears are driven to rotate by the fourth bevel gear, the threaded rods are driven to rotate by the third bevel gears respectively, and the lifting plate is driven to move by the inclined block, so that the distance between the third electric roller and the fourth electric roller can be adjusted according to the size of the circuit board, and at the same time, the distance between the lifting plate and the end of the swing arm after rotation is ensured to remain unchanged, so that the circuit board can slide smoothly onto the fourth electric roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 Schematic diagram of the overall structure of the present invention;

[0032] Figure 2 Schematic diagram of the overall structure of the conveying component of the present invention;

[0033] Figure 3 Schematic diagram of the installation structure of the worm of the present invention;

[0034] Figure 4 Schematic diagram of the installation structure of the roller of the present invention;

[0035] Figure 5 Schematic diagram of the overall structure of the detection component of the present invention;

[0036] Figure 6 Schematic diagram of the installation structure of the probe test integration board of the present invention;

[0037] Figure 7 Schematic diagram of the installation structure of the second motor of the present invention;

[0038] Figure 8 Schematic diagram of the overall structure of the switching component of the present invention;

[0039] Fig. 9 Schematic diagram of the installation structure of the swing arm of the present invention;

[0040] Fig.10 Schematic diagram of the overall structure of the blanking component of the present invention;

[0041] Fig.11 Schematic diagram of the installation structure of the lifting plate of the present invention.

[0042] Explanation of the reference numerals in the figure: 1. conveying assembly; 101. base; 102. support plate; 103. first base; 104. first motor; 105. top plate; 106. first bevel gear; 107. output shaft; 108. second bevel gear; 109. worm; 110. drive shaft; 111. worm wheel; 112. bracket; 113. first electric roller; 114. mounting groove; 115. fixing frame; 116. Sliding rod; 117, first limiting sleeve; 118, first spring; 119, sliding block; 120, first rotating shaft; 121, roller; 2, detection assembly; 201, fixed plate; 202, fixed sleeve; 203, connecting arm; 204, first cylinder; 205, positioning block; 206, guide rod; 207, connecting block; 208, fixing plate; 209, supporting plate; 210, bracket; 211, second motor; 212 , extension plate; 213, second rotating shaft; 214, mounting frame; 215, support rod; 216, second limiting sleeve; 217, second spring; 218, probe test integrated board; 219, support plate; 3, switching assembly; 301, clamping plate; 302, stopper; 303, connecting shaft; 304, torsion spring; 305, third limiting sleeve; 306, swing arm; 307, second electric roller; 308, fixing frame; 309 , second cylinder; 310, connecting frame; 311, third rotating shaft; 312, pressing wheel; 4, unloading assembly; 401, supporting frame; 402, third electric roller; 403, inclined hole; 404, threaded rod; 405, inclined block; 406, second base; 407, third motor; 408, lifting plate; 409, fourth electric roller; 410, third bevel gear; 411, fixed shaft; 412, fourth bevel gear. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the implementation mode of the present application clearer, the technical solution in the implementation mode of the present application will be clearly and completely described in combination with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. The specific implementation modes of the present invention are described in detail in combination with the drawings in the specification.

[0044] Embodiment 1:

[0045] like Figure 1-Figure 4 As shown, a circuit board detection device includes a conveying assembly 1, the conveying assembly 1 includes a bracket 112, the top and bottom of the bracket 112 are fixedly connected to a support plate 102, and the bottom of the support plate 102 located below is fixedly connected to a base 101;

[0046] The outer wall of the bracket 112 is fixedly connected to the first machine base 103, the top of the first machine base 103 is fixedly connected to the first motor 104, the inner wall of the first machine base 103 is rotatably connected to the output shaft 107, both ends of the output shaft 107 are fixedly connected to the worm 109, the circumferential outer wall of the output shaft 107 is fixedly connected to the second bevel gear 108, the output end of the first motor 104 is fixedly connected to the first bevel gear 106, the first bevel gear 106 is meshed with the second bevel gear 108, the inner walls of the two support plates 102 are rotatably connected to the drive shafts 110, the ends of the two drive shafts 110 are fixedly connected to the worm gears 111, and the two worm gears 111 are respectively meshed with the worm 109, the outer wall of the upper support plate 102 is fixedly connected to the top plate 105, the top of the worm 109 at the top is rotatably connected to the top plate 105, and the bottom of the worm 109 at the bottom is rotatably connected to the base 101.

[0047] Two groups of conveyor groups are installed on both sides of the inner wall of the bracket 112, and each group of conveyor groups is composed of multiple first electric rollers 113. Two installation grooves 114 are opened on the top of the bracket 112. The inner walls of the two installation grooves 114 are fixedly connected to the fixed frame 115. The inner walls of the two fixed frames 115 are slidably connected with sliders 119. The tops of the two sliders 119 are fixedly connected with slide bars 116. The tops of the two slide bars 116 penetrate the fixed frame 115 and extend to the outside thereof. The circumferential outer walls of the two slide bars 116 are fixedly connected with first limit sleeves 117. The circumferential outer walls of the two slide bars 116 are sleeved with first springs 118. The inner walls of the two sliders 119 are rotatably connected with the first rotating shaft 120, and the circumferential outer walls of the two first rotating shafts 120 are fixedly connected with rollers 121.

[0048] One end of the first spring 118 is fixedly connected to the first limiting sleeve 117 , and the other end of the first spring 118 is fixedly connected to the fixing frame 115 .

[0049] Embodiment 2:

[0050] This embodiment provides a circuit board detection device, which further includes the following structure based on the first embodiment:

[0051] like Figure 1 and Figure 5-Figure 7 As shown, a detection component 2 is installed on the conveying component 1, and the detection component 2 includes two fixed disks 201. The outer circumferential walls of the two fixed disks 201 are sleeved with fixed sleeves 202. The outer circumferential walls of the two fixed disks 201 are fixedly connected with a plurality of connecting arms 203. The connecting arms 203 are respectively embedded in the fixing sleeves 202 and fixedly connected thereto. The inner walls of the connecting arms 203 are fixedly connected with first cylinders 204. The output ends of the first cylinders 204 penetrate the connecting arms 203 and are slidably connected thereto. The output ends of the first cylinders 204 are fixedly connected with connecting blocks 207.

[0052] The outer wall of the connecting block 207 is fixedly connected to two guide rods 206, and the outer wall of the connecting arm 203 is fixedly connected to two positioning blocks 205. The ends of the guide rods 206 penetrate the positioning blocks 205 and are slidably connected thereto.

[0053] The ends of the connecting blocks 207 are fixedly connected to the fixing plates 208, the ends of the fixing plates 208 are fixedly connected to the supporting plates 209, the outer walls of the supporting plates 209 are fixedly connected to the brackets 210, the inner walls of the brackets 210 are fixedly connected to the second motors 211, the output ends of the second motors 211 are fixedly connected to the second rotating shafts 213, the output ends of the second rotating shafts 213 are fixedly connected to the extension plates 212, the bottom of the extension plates 212 are fixedly connected to the mounting frame 214, the top four corners of the mounting frame 214 are slidably connected to a plurality of supporting rods 215, the outer circumferential walls of the supporting rods 215 are sleeved with second springs 217, the bottoms of the supporting rods 215 are penetrated Passing through the installation frame 214 and extending to the bottom thereof, the circumferential outer walls of the support rods 215 are fixedly connected with the second limiting sleeves 216, and a probe test integrated board 218 is provided below the installation frame 214. The probe test integrated board 218 is used to detect the circuit board, and the top of the probe test integrated board 218 is fixedly connected to the corresponding multiple support rods 215. The outer wall of the fixed sleeve 202 located below is provided with multiple support plates 219, and the support plates 219 are respectively fixedly connected to the corresponding multiple support rods 215. One end of the second spring 217 is fixedly connected to the second limiting sleeve 216, and the other end of the second spring 217 is fixedly connected to the installation frame 214.

[0054] The first cylinder 204 can adjust the distance between the probe test integrated board 218 and the driving shaft 110 by pushing the connecting block 207 to move;

[0055] By extending and retracting the first cylinder 204 and when the probe test integrated board 218 contacts the circuit board, the elastic force of the second spring 217 can ensure that the extrusion force of the probe test integrated board 218 on the circuit board remains balanced, avoiding poor contact and ensuring that the probe test integrated board 218 contacts the circuit board fully.

[0056] Embodiment three:

[0057] This embodiment provides a circuit board detection device, which further includes the following structure based on the second embodiment:

[0058] like Figure 1 , Figure 8 and Fig. 9As shown, a switching component 3 is installed at the end of the conveying component 1, and the switching component 3 includes a fixed frame 308, and both ends of the bottom of the fixed frame 308 are fixedly connected with a clamping plate 301, and the top of the fixed frame 308 is fixedly connected with a second cylinder 309, and the output end of the second cylinder 309 passes through the fixed frame 308 and extends to the bottom thereof, and the output end of the second cylinder 309 is fixedly connected with a connecting frame 310, and both sides of the connecting frame 310 are rotatably connected with a third rotating shaft 311, and the ends of the two third rotating shafts 311 are fixedly connected with pressure wheels 312.

[0059] The two clamping plates 301 are fixedly connected to a stopper 302 on one side where they are close to each other, and are rotatably connected to a connecting shaft 303 on one side where they are close to each other. The outer circumferential walls of the two connecting shafts 303 are fixedly connected to swing arms 306, and a plurality of second electric rollers 307 are installed on the relatively close sides of the two swing arms 306. The ends of the two connecting shafts 303 pass through the clamping plates 301 and extend to the outside thereof, and the outer ends of the two connecting shafts 303 are fixedly connected to a third limiting sleeve 305, and the outer ends of the two connecting shafts 303 are sleeved with a torsion spring 304.

[0060] One end of the torsion spring 304 is fixedly connected to the third limiting sleeve 305 , and the other end of the torsion spring 304 is fixedly connected to the clamping plate 301 .

[0061] The qualified circuit boards are conveyed to the third electric roller 402 inside the support frame 401 by the second electric roller 307, and the second cylinder 309 squeezes the circuit boards by pushing the pressure wheel 312 downward, so that the swing arm 306 moves downward with the connecting shaft 303 as the center, thereby conveying the circuit boards to the fourth electric roller 409 on the lifting plate 408, so that the unqualified circuit boards can be distinguished and unloaded.

[0062] Embodiment 4:

[0063] This embodiment provides a circuit board detection device, which further includes the following structure based on the third embodiment:

[0064] like Figure 1 , Fig.10 and Fig.11 As shown, a material discharge assembly 4 is installed at the end of the conveying assembly 1. The material discharge assembly 4 includes a support frame 401. A plurality of third electric rollers 402 are installed on both sides of the inner wall of the support frame 401.

[0065] The support frame 401 is provided with inclined holes 403 on both sides, the inner walls of the two inclined holes 403 are rotatably connected with threaded rods 404, the outer walls of the two threaded rods 404 are threadedly connected with inclined blocks 405, the inclined blocks 405 are respectively slidably connected to the inner walls of the inclined holes 403, the inner wall of the support frame 401 is rotatably connected with a fixed shaft 411, both ends of the fixed shaft 411 are fixedly connected with a fourth bevel gear 412, the ends of the two threaded rods 404 are fixedly connected with a third bevel gear 410, the third bevel gear 410 is meshed with the fourth bevel gear 412, the outer wall of the support frame 401 is fixedly connected with a second machine base 406, the top of the second machine base 406 is fixedly connected with a third motor 407, the output end of the third motor 407 is fixedly connected to the fixed shaft 411, the outer walls of the two inclined blocks 405 are fixedly connected with a lifting plate 408, and the outer walls of the two lifting plates 408 are installed with a plurality of fourth electric rollers 409.

[0066] The two threaded rods 404 are driven to rotate by the third motor 407, and the lifting plate 408 is driven to move by the inclined block 405, so that the distance between the third electric roller 402 and the fourth electric roller 409 can be adjusted according to the size of the circuit board, while ensuring that the distance between the lifting plate 408 and the end of the rotated swing arm 306 remains unchanged, so that the circuit board can slide smoothly onto the fourth electric roller 409.

[0067] Working principle: Place the circuit board on the first electric roller 113 on the bracket 112, and use multiple first electric rollers 113 to clamp and transport both sides of the circuit board. The circuit board is blocked by the roller 121 during the movement;

[0068] The first motor 104 drives the second bevel gear 108 to rotate through the first bevel gear 106, the second bevel gear 108 drives two worms 109 to rotate through the output shaft 107, the two worms 109 respectively drive two worm wheels 111 to rotate, the two worm wheels 111 respectively drive the driving shaft 110 to rotate, the driving shaft 110 respectively drives two fixed plates 201 to rotate, and the two fixed plates 201 respectively drive multiple connecting arms 203 to rotate;

[0069] The probe test integrated board 218 is driven to rotate by the multiple connecting arms 203 above. When the probe test integrated board 218 rotates around the drive shaft 110, the first cylinder 204 moves by pushing the connecting block 207, so that the connecting block 207 drives the guide rod 206 to slide along the positioning block 205. The connecting block 207 moves by pushing the mounting frame 214, thereby adjusting the distance between the probe test integrated board 218 and the drive shaft 110. At the same time, the second motor 211 drives the second rotating shaft 213 to rotate. 213 drives the installation frame 214 to rotate, thereby adjusting the angle of the probe test integrated board 218, so that the probe test integrated board 218 can always remain parallel to the circuit board when rotating around the driving shaft 110. At the same time, through the expansion and contraction of the first cylinder 204 and when the probe test integrated board 218 contacts the circuit board, under the elastic force of the second spring 217, it can ensure that the extrusion force of the probe test integrated board 218 on the circuit board remains balanced, avoiding poor contact, and making the probe test integrated board 218 fully contact with the circuit board;

[0070] The support plate 219 is driven to rotate by the multiple connecting arms 203 at the bottom, and the mounting frame 214 is driven to rotate by the second rotating shaft 213, so as to adjust the angle of the support plate 219, so that the support plate 219 can always remain parallel to the circuit board when rotating around the driving shaft 110, and can always maintain parallel and straight movement when the first cylinder 204 is extended and contracted, and the support plate 219 contacts the circuit board, and effectively support the bottom of the circuit board, so as to prevent the top of the circuit board from bending when being squeezed by the probe test integrated board 218, causing the circuit board to fall off the bracket 112 and be damaged;

[0071] When the probe test integrated board 218 squeezes the circuit board, it pushes the circuit board to move, so that the circuit board squeezes the roller 121, so that the roller 121 pushes the slide bar 116 to move upward until the circuit board passes the roller 121. At this time, the roller 121 blocks the next circuit board under the elastic force of the first spring 118;

[0072] After the inspection, the circuit board is transported from the first electric roller 113 to the second electric roller 307, and the qualified circuit board is transported to the third electric roller 402 inside the support frame 401 by the second electric roller 307. The second cylinder 309 pushes the connecting frame 310 to move, and the connecting frame 310 drives the pressing wheel 312 to move downward to squeeze the circuit board. At this time, the swing arm 306 moves downward with the connecting shaft 303 as the center, so as to transport the circuit board to the fourth electric roller 409 on the lifting plate 408, so that the unqualified circuit boards can be distinguished and unloaded;

[0073] The fixed shaft 411 is driven to rotate by the third motor 407, the fourth bevel gear 412 is driven to rotate by the fixed shaft 411, the two third bevel gears 410 are driven to rotate by the fourth bevel gear 412, the threaded rod 404 is driven to rotate by the third bevel gears 410, and the lifting plate 408 is driven to move by the inclined block 405, so that the distance between the third electric roller 402 and the fourth electric roller 409 can be adjusted according to the size of the circuit board, and at the same time, the distance between the lifting plate 408 and the end of the rotated swing arm 306 is ensured to remain unchanged, so that the circuit board can slide smoothly onto the fourth electric roller 409.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circuit board testing device, comprising a conveying assembly (1), characterized in that: A detection component (2) is installed on the conveying component (1), a switching component (3) is installed at the end of the conveying component (1), and a material discharge component (4) is installed at the end of the conveying component (1); The detection assembly (2) comprises two fixed disks (201), the circumferential outer walls of the two fixed disks (201) are both sleeved with fixed sleeves (202), the circumferential outer walls of the two fixed disks (201) are both fixedly connected with a plurality of connecting arms (203), the connecting arms (203) are respectively embedded in the fixing sleeves (202) and fixedly connected thereto, the inner walls of the connecting arms (203) are both fixedly connected with a first cylinder (204), the output end of the first cylinder (204) passes through the connecting arm (203) and is slidably connected thereto, and the output end of the first cylinder (204) is both fixedly connected with a connecting block (207); The outer wall of the connecting block (207) is fixedly connected to two guide rods (206), the outer wall of the connecting arm (203) is fixedly connected to two positioning blocks (205), and the ends of the guide rods (206) pass through the positioning blocks (205) and are slidably connected thereto; The ends of the connection blocks (207) are fixedly connected to fixed plates (208), the ends of the fixed plates (208) are fixedly connected to support plates (209), the outer walls of the support plates (209) are fixedly connected to brackets (210), the inner walls of the brackets (210) are fixedly connected to second motors (211), the output ends of the second motors (211) are fixedly connected to second rotating shafts (213), the output ends of the second rotating shafts (213) are fixedly connected to extension plates (212), the bottom of the extension plates (212) are fixedly connected to a mounting frame (214), the top four corners of the mounting frame (214) are slidably connected to a plurality of support rods (215), the circumferential outer walls of the support rods (215) are sleeved with second springs (217), the support rods (215) are ) bottoms all penetrate the mounting frame (214) and extend below it, the circumferential outer walls of the support rods (215) are fixedly connected with the second limiting sleeve (216), a probe test integrated board (218) is provided below the mounting frame (214), the probe test integrated board (218) is used to detect the circuit board, the top of the probe test integrated board (218) is fixedly connected to the corresponding multiple support rods (215), the outer wall of the fixing sleeve (202) located below is provided with multiple supporting plates (219), the supporting plates (219) are respectively fixedly connected to the corresponding multiple support rods (215), one end of the second spring (217) is fixedly connected to the second limiting sleeve (216), and the other end of the second spring (217) is fixedly connected to the mounting frame (214).

2. The circuit board testing device according to claim 1, characterized in that: The conveying assembly (1) comprises a bracket (112), the top and bottom of the bracket (112) are both fixedly connected to a support plate (102), and the bottom of the support plate (102) located below is fixedly connected to a base (101); The outer wall of the bracket (112) is fixedly connected to a first machine base (103), the top of the first machine base (103) is fixedly connected to a first motor (104), the inner wall of the first machine base (103) is rotatably connected to an output shaft (107), both ends of the output shaft (107) are fixedly connected to a worm (109), the circumferential outer wall of the output shaft (107) is fixedly connected to a second bevel gear (108), the output end of the first motor (104) is fixedly connected to a first bevel gear (106), and the first bevel gear (106) is rotatably connected to a worm (109). The second bevel gear (108) is meshed, the inner walls of the two support plates (102) are rotatably connected to the drive shaft (110), the ends of the two drive shafts (110) are fixedly connected to the worm wheels (111), the two worm wheels (111) are respectively meshed with the worm (109), the outer wall of the upper support plate (102) is fixedly connected to the top plate (105), the top of the worm (109) is rotatably connected to the top plate (105), and the bottom of the worm (109) is rotatably connected to the base (101).

3. The circuit board testing device according to claim 2, characterized in that: Two groups of conveyor groups are installed on both sides of the inner wall of the bracket (112), and each group of the conveyor groups is composed of a plurality of first electric rollers (113). Two installation grooves (114) are opened on the top of the bracket (112). The inner walls of the two installation grooves (114) are fixedly connected to the fixed frames (115). The inner walls of the two fixed frames (115) are slidably connected to the sliders (119). The tops of the two sliders (119) are fixedly connected to the slide bars (11 6), the tops of the two sliding bars (116) penetrate the fixed frame (115) and extend to the outside thereof, the circumferential outer walls of the two sliding bars (116) are fixedly connected with a first limiting sleeve (117), the circumferential outer walls of the two sliding bars (116) are sleeved with a first spring (118), the inner walls of the two sliding blocks (119) are rotatably connected with a first rotating shaft (120), and the circumferential outer walls of the two first rotating shafts (120) are fixedly connected with a roller (121).

4. The circuit board testing device according to claim 3, characterized in that: One end of the first spring (118) is fixedly connected to the first limiting sleeve (117), and the other end of the first spring (118) is fixedly connected to the fixing frame (115).

5. The circuit board testing device according to claim 4, characterized in that: The switching assembly (3) comprises a fixed frame (308), both ends of the bottom of the fixed frame (308) are fixedly connected to clamping plates (301), the top of the fixed frame (308) is fixedly connected to a second cylinder (309), the output end of the second cylinder (309) passes through the fixed frame (308) and extends to the bottom thereof, the output end of the second cylinder (309) is fixedly connected to a connecting frame (310), both sides of the connecting frame (310) are rotatably connected to third rotating shafts (311), and the ends of the two third rotating shafts (311) are fixedly connected to pressure wheels (312).

6. The circuit board testing device according to claim 5, characterized in that: The two clamping plates (301) are fixedly connected to a stopper (302) on one side close to each other, the two clamping plates (301) are rotatably connected to a connecting shaft (303) on one side close to each other, the outer circumferential walls of the two connecting shafts (303) are fixedly connected to swing arms (306), the relatively close sides of the two swing arms (306) are installed with a plurality of second electric rollers (307), the ends of the two connecting shafts (303) pass through the clamping plates (301) and extend to the outside thereof, the outer ends of the two connecting shafts (303) are fixedly connected to a third limiting sleeve (305), and the outer ends of the two connecting shafts (303) are sleeved with a torsion spring (304).

7. The circuit board testing device according to claim 6, characterized in that: One end of the torsion spring (304) is fixedly connected to the third limiting sleeve (305), and the other end of the torsion spring (304) is fixedly connected to the clamping plate (301).

8. The circuit board testing device according to claim 7, characterized in that: The blanking assembly (4) comprises a support frame (401), and a plurality of third electric rollers (402) are installed on both sides of the inner wall of the support frame (401).

9. The circuit board testing device according to claim 8, characterized in that: The support frame (401) is provided with inclined holes (403) on both sides, the inner walls of the two inclined holes (403) are rotatably connected with threaded rods (404), the outer walls of the two threaded rods (404) are threadedly connected with inclined blocks (405), the inclined blocks (405) are respectively slidably connected to the inner walls of the inclined holes (403), the inner wall of the support frame (401) is rotatably connected with a fixed shaft (411), both ends of the fixed shaft (411) are fixedly connected with a fourth bevel gear (412), and the ends of the two threaded rods (404) are fixedly connected A third bevel gear (410) is connected, and the third bevel gear (410) is meshed with a fourth bevel gear (412). The outer wall of the support frame (401) is fixedly connected to a second machine base (406), and the top of the second machine base (406) is fixedly connected to a third motor (407). The output end of the third motor (407) is fixedly connected to a fixed shaft (411). The outer walls of the two inclined blocks (405) are fixedly connected to a lifting plate (408), and the outer walls of the two lifting plates (408) are installed with a plurality of fourth electric rollers (409).

10. A detection method for a circuit board detection device, applicable to the circuit board detection device according to claim 9, characterized in that: The following steps are involved: S1, placing a circuit board on a first electric roller (113) on a bracket (112), clamping and conveying both sides of the circuit board by a plurality of first electric rollers (113), and blocking the circuit board by rollers (121) during the movement; S2, the first motor (104) drives the second bevel gear (108) to rotate via the first bevel gear (106), the second bevel gear (108) drives the two worms (109) to rotate via the output shaft (107), the two worms (109) respectively drive the two worm wheels (111) to rotate, the two worm wheels (111) respectively drive the driving shaft (110) to rotate, the driving shaft (110) respectively drives the two fixed disks (201) to rotate, and the two fixed disks (201) respectively drive the multiple connecting arms (203) to rotate; S3, the probe test integrated board (218) is driven to rotate respectively through the multiple connecting arms (203) above. When the probe test integrated board (218) rotates around the driving shaft (110), the first cylinder (204) pushes the connecting block (207) to move, so that the connecting block (207) drives the guide rod (206) to slide along the positioning block (205). The connecting block (207) pushes the installation frame (214) to move, thereby adjusting the distance between the probe test integrated board (218) and the driving shaft (110). At the same time, the second rotating shaft (213) is driven to rotate through the second motor (211). The second rotating shaft (213) drives the mounting frame (214) to rotate, thereby adjusting the angle of the probe test integrated board (218), so that the probe test integrated board (218) can always remain parallel to the circuit board when rotating around the driving shaft (110). At the same time, through the expansion and contraction of the first cylinder (204) and when the probe test integrated board (218) contacts the circuit board, under the elastic force of the second spring (217), it can be ensured that the extrusion force of the probe test integrated board (218) on the circuit board remains balanced, avoiding poor contact, and making the probe test integrated board (218) fully contact the circuit board; S4, the support plate (219) is driven to rotate respectively by the multiple connecting arms (203) at the bottom, and the installation frame (214) is driven to rotate by the second rotating shaft (213), so as to adjust the angle of the support plate (219), so that when the support plate (219) rotates around the driving shaft (110), it can always remain parallel to the circuit board, and when the first cylinder (204) is extended and contracted, and the support plate (219) is in contact with the circuit board, it can always maintain parallel linear movement, and effectively support the bottom of the circuit board, so as to prevent the top of the circuit board from bending when being squeezed by the probe test integrated board (218), causing the circuit board to fall from the bracket (112) and be damaged; S5, when the probe test integrated board (218) squeezes the circuit board, the circuit board is pushed to move, so that the circuit board squeezes the roller (121), so that the roller (121) pushes the slide bar (116) to move upward until the circuit board passes the roller (121), and at this time, the roller (121) blocks the next circuit board under the elastic force of the first spring (118); S6. After the inspection, the circuit board is transported from the first electric roller (113) to the second electric roller (307), and the qualified circuit board is transported to the third electric roller (402) inside the support frame (401) by the second electric roller (307). The second cylinder (309) pushes the connecting frame (310) to move, and the connecting frame (310) drives the pressing wheel (312) to move downward to squeeze the circuit board. At this time, the swing arm (306) moves downward with the connecting shaft (303) as the center, so as to transport the circuit board to the fourth electric roller (409) on the lifting plate (408), so that the unqualified circuit boards can be distinguished and unloaded; S7. The fixed shaft (411) is driven to rotate by the third motor (407), the fourth bevel gear (412) is driven to rotate by the fixed shaft (411), the two third bevel gears (410) are driven to rotate by the fourth bevel gear (412), the threaded rods (404) are driven to rotate by the third bevel gears (410), and the lifting plate (408) is driven to move by the inclined block (405), so that the distance between the third electric roller (402) and the fourth electric roller (409) can be adjusted according to the size of the circuit board, and at the same time, the distance between the lifting plate (408) and the end of the swing arm (306) after rotation is ensured to remain unchanged, so that the circuit board can slide smoothly onto the fourth electric roller (409).

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