A PCB testing device

Abstract

The present invention aims to provide a PCB testing device with reasonable design, simple operation and strong compatibility. The present invention includes a mounting base plate, a mounting frame, a downward pressure test module, a liftable conveyor line and a lower conduction test module, one end of the mounting frame is hinged to the mounting base plate, the downward pressure test module and the liftable conveyor line are arranged in the mounting frame, the downward pressure test module is located above the liftable conveyor line, and the lower conduction test module is arranged on the mounting base plate and below the liftable conveyor line and cooperates with the liftable conveyor line. The present invention is applied to the technical field of testing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB testing, and in particular to a PCB testing device. Background Art

[0002] PCB, or printed circuit board, is one of the important components of the electronics industry. Almost every electronic device, from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, must use printed circuits to make electrical interconnections between the components. The printed circuit board consists of an insulating base plate, connecting wires, and pads for assembling and welding electronic components. It has the dual functions of a conductive circuit and an insulating base plate. It can replace complex wiring to achieve electrical connections between components in the circuit, which not only simplifies the assembly and welding of electronic products, reduces the wiring workload under traditional methods, and greatly reduces the labor intensity of workers; it also reduces the size of the whole machine, reduces product costs, and improves the quality and reliability of electronic equipment. The printed circuit board has good product consistency. It can adopt standardized design, which is conducive to mechanization and automation in the production process. At the same time, the entire assembled and debugged printed circuit board can be used as an independent spare part, which is convenient for the interchange and maintenance of the whole product. At present, printed circuit boards have been widely used in the production and manufacturing of electronic products.

[0003] After the production of PCB boards is completed, it is usually necessary to conduct a continuity test. The structure of existing test equipment is generally to set up two upper and lower test modules in the chassis, which can be moved up or down to cooperate with the conveyor line that crosses the chassis, so as to test the PCB boards on the conveyor line. However, with the advancement of technology, the replacement of products is also accelerating. Therefore, for test equipment, it is necessary to have high compatibility, that is, to be able to quickly replace test modules that adapt to different products to cope with new products. Existing test equipment needs to remove the chassis when replacing the test module, and it is easily blocked by the conveyor line when replacing the test module, which is extremely inconvenient and has limitations. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a PCB testing device with reasonable design, simple operation and strong compatibility.

[0005] The technical solution adopted by the present invention is: the present invention includes a mounting base plate, a mounting frame, a downward pressure test module, a liftable conveyor line and a lower conduction test module, one end of the mounting frame is hinged to the mounting base plate, the downward pressure test module and the liftable conveyor line are cooperatively arranged in the mounting frame, the downward pressure test module is located above the liftable conveyor line, and the lower conduction test module is arranged on the mounting base plate and below the liftable conveyor line and cooperates with the liftable conveyor line.

[0006] Furthermore, the lower conduction test module includes locking mechanisms arranged on both sides of the mounting base plate, a lower conduction module is arranged between the two locking mechanisms, the locking mechanism includes a locking seat, a locking cylinder, a locking shaft, a hinge bar, a locking rod and a locking seat, the locking cylinder and the locking shaft are respectively arranged on both sides of the lower end of the locking seat and the locking shaft is rotatably matched with the locking seat, the output end of the locking cylinder is hinged to the locking shaft, a connecting block is arranged on the locking shaft, the locking seat is arranged at the upper end of the locking seat, the middle part of the locking rod is hinged to the locking seat, the lower end of the hinge bar is hinged to the connecting block, the upper end of the hinge bar passes through the locking seat and is connected to the rear end of the locking rod, and one side of the lower conduction module is arranged between the front end of the locking rod and the locking seat.

[0007] Furthermore, the downward pressure test module includes a lifting assembly, a quick-change assembly and an upper conduction module which are arranged in sequence from top to bottom, and the quick-change assembly includes a support plate, a positioning block and two long load-bearing plates, the support plate is connected to the action end of the lifting assembly, the two long load-bearing plates are symmetrically arranged on both sides of the lower end of the support plate, the inner sides of the two long load-bearing plates are provided with load-bearing slide grooves, the front end of the support plate is provided with a locking groove, the positioning block is floatingly arranged on one side of the locking groove, the lower conduction module is slidably engaged in the load-bearing slide groove, and a limiting column is arranged on the lower conduction module, the limiting column is adapted to the locking groove and cooperates with the positioning block.

[0008] Furthermore, the liftable conveyor line includes a first side plate and a second side plate arranged on both sides of the mounting frame, a first cylinder and a second cylinder are respectively arranged at both ends of the first side plate, a third cylinder and a fourth cylinder are respectively arranged at both ends of the second side plate, the lower ends of the first cylinder and the third cylinder are connected to the first conveyor line, the lower ends of the second cylinder and the fourth cylinder are connected to the second conveyor line, the first conveyor line and the second conveyor line cooperate and are arranged in parallel, and the first cylinder, the second cylinder, the third cylinder and the fourth cylinder act synchronously.

[0009] Furthermore, support columns are provided on both sides of the front end of the mounting base plate, force-bearing columns cooperating with the support columns are provided on both sides of the front end of the mounting frame, locking plates are hinged on both sides of the front end of the mounting frame, the two locking plates are connected by a synchronization rod, and a fixed hook is provided at the lower end of the locking plate, and the fixed hook cooperates with a fixed groove opened at the front end of the support column.

[0010] Furthermore, a hinged base is provided at the rear end of the mounting base plate, and both sides of the rear end of the mounting frame are hinged to the middle part of the hinged base, auxiliary gas rods are provided on both sides of the upper end of the hinged base, and both ends of the auxiliary gas rods are respectively hinged to the hinged base and the mounting frame, and gas springs are provided on both sides of the lower end of the hinged base, and both ends of the gas springs are respectively hinged to the hinged base and the mounting frame.

[0011] Furthermore, the first side panel and the second side panel are both provided with transverse guide rails, the first cylinder, the second cylinder, the third cylinder and the fourth cylinder are all slidably matched with the transverse guide rails through a fixing plate, one side of the fixing plate is threadedly matched with a hand screw, one end of the hand screw passes through the fixing plate and is provided with a locking block, the inner upper and lower ends of the locking block are both provided with hooks, and the two hooks are respectively matched with the slots opened at the upper and lower ends of the transverse guide rails.

[0012] Furthermore, a plurality of auxiliary pulleys are rotatably arranged on the bearing long board, the auxiliary pulleys are embedded on the inner side of the bearing long board, the upper ends of the auxiliary pulleys are located in the bearing slide groove, the upper ends of the support plates are provided with left limit blocks and right limit blocks, the locking block is located between the left limit blocks and the right limit blocks, the right end of the locking block is connected with a sliding shaft that slidably cooperates with the right limit block, a floating spring is sleeved on the sliding shaft, and the left end of the locking block passes through the left limit block and is located above the locking groove.

[0013] Furthermore, a sensing plate is provided at one end of the locking shaft, and a sensor cooperating with the sensing plate is provided at one end of the locking seat close to the sensing plate. A U-shaped block is also provided on the locking shaft, and the open end of the U-shaped block is connected to the locking shaft. An upper bend section is provided at the closed end of the U-shaped block, and the upper bend section is hinged to the output end of the locking cylinder.

[0014] Furthermore, a square plate is arranged between the two support columns, and an embedding groove is opened at the upper end of the square plate and the inner side of the support column, and an acrylic protective plate is movably arranged on the embedding groove.

[0015] The beneficial effects of the present invention are as follows: the present invention comprises an installation base plate, an installation frame, a downward pressure test module, a liftable conveyor line and a lower conduction test module; the rear end of the installation frame is hinged with the rear end of the installation base plate so that it can be turned over; the downward pressure test module is used to press down the PCB board on the liftable conveyor line so as to achieve contact and conduction of the upper end surface contacts of the PCB board; the liftable conveyor line can be lifted and lowered to convey the PCB board and can be connected to an external assembly line to achieve online operation; the lower conduction test module is used to cooperate with the liftable conveyor line to test the PCB board on the liftable conveyor line. The lower end surface contact of the PCB board is in contact and conduction; when working, the cover of the mounting frame is closed on the mounting base plate, and the down-pressing test module, the liftable conveyor line and the lower conduction test module are distributed from top to bottom in sequence. When the PCB board flows into the set position of the liftable conveyor line, the liftable conveyor line stops conveying, and then the down-pressing test module moves down to realize the conduction of the upper end surface contact of the PCB board, and then the liftable conveyor line moves down, and the down-pressing test module moves down synchronously until the lower end surface contact of the PCB board is in contact and conduction with the lower conduction test module, thereby realizing the double-sided conduction of the PCB board, so that the test can be carried out. As can be seen from the above, the overall design of the present invention is reasonable. When it is necessary to replace the test module adapted to the new product, since the mounting frame is connected to the mounting base plate in an articulated manner, and the liftable conveyor line performs a lifting action at the same time, it is very convenient and simple to operate whether to replace the down-pressing test module or the lower conduction test module, thereby realizing rapid replacement and strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in a pressed state;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in another angle in the pressed state;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention in an opened state;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention in an open state from another angle;

[0020] Figure 5 yes Figure 4 A magnified view of part A;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the locking mechanism of the present invention;

[0022] Figure 7 is a schematic diagram of the three-dimensional structure of the locking mechanism of the present invention from another angle;

[0023] Figure 8 is a schematic diagram of the three-dimensional structure of the pressure test module of the present invention;

[0024] Fig. 9 It is a schematic diagram of the structure of the end of the load-bearing long plate;

[0025] Fig.10 It is a three-dimensional structural schematic diagram of a partial structure of the downward pressure test module of the present invention;

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the liftable conveyor line of the present invention;

[0027] Fig.12 yes Fig.11 Magnified view of part C. DETAILED DESCRIPTION

[0028] like Figures 1 to 11As shown, in this embodiment, the present invention includes a mounting base plate 1, a mounting frame 2, a downward pressure test module 3, a liftable conveyor line 4 and a lower conduction test module 5, one end of the mounting frame 2 is hinged to the mounting base plate 1, the downward pressure test module 3 and the liftable conveyor line 4 are cooperatively arranged in the mounting frame 2, the downward pressure test module 3 is located above the liftable conveyor line 4, and the lower conduction test module 5 is arranged on the mounting base plate 1 and is located below the liftable conveyor line 4 and cooperates with the liftable conveyor line 4. The present invention comprises an installation base plate 1, an installation frame 2, a downward pressure test module 3, a liftable conveyor line 4 and a lower conduction test module 5. The rear end of the installation frame 2 is hinged to the rear end of the installation base plate 1 so that it can be turned over. The downward pressure test module 3 is used to press down the PCB board on the liftable conveyor line 4 so as to achieve contact and conduction of the upper end surface contacts of the PCB board. The liftable conveyor line 4 can be lifted and lowered to convey the PCB board and can be connected to an external assembly line to achieve online operation. The lower conduction test module 5 is used to cooperate with the liftable conveyor line 4 to contact and conduct the lower end surface contacts of the PCB board on the liftable conveyor line 4. When working, the cover of the installation frame 2 is closed on the On the installation base plate 1, the downward pressure test module 3, the liftable conveyor line 4 and the lower conduction test module 5 are distributed from top to bottom in sequence. When the PCB board flows into the set position of the liftable conveyor line 4, the liftable conveyor line 4 stops conveying, and then the downward pressure test module 3 moves downward to realize the conduction of the upper end surface contacts of the PCB board, and then the liftable conveyor line 4 moves downward, and the downward pressure test module 3 moves downward synchronously until the lower end surface contacts of the PCB board are in contact and conduction with the lower conduction test module 5, thereby realizing double-sided conduction of the PCB board, so that testing can be carried out. After the test is completed, the liftable conveyor line 4 and the downward pressure test module 3 are reset, and then the liftable conveyor line 4 is conveyed to make the PCB board that has completed the test flow out. It can be seen from the above that the overall design of the present invention is reasonable. When it is necessary to replace the test module to adapt to the new product, since the mounting frame 2 is connected to the mounting base plate 1 in a hinged manner and the conveyor line 4 can be raised and lowered at the same time, it is very convenient and simple to operate whether replacing the downward pressure test module 3 or the lower conduction test module 5, thereby achieving quick replacement and strong compatibility.

[0029] In this embodiment, the lower conduction test module 5 includes a locking mechanism 51 arranged on both sides of the mounting base plate 1, and a lower conduction module 50 is arranged between the two locking mechanisms 51. The locking mechanism 51 includes a locking seat 511, a locking cylinder 512, a locking shaft 513, a hinge strip 514, a locking rod 515 and a locking seat 516. The locking cylinder 512 and the locking shaft 513 are respectively arranged on both sides of the lower end of the locking seat 511 and the locking shaft 513 is rotatably matched with the locking seat 511. The locking cylinder 512 and the locking shaft 513 are respectively arranged on both sides of the lower end of the locking seat 511. The output end of the lower conductive module 50 is hinged to the locking shaft 513, a connecting block 517 is arranged on the locking shaft 513, the locking seat 516 is arranged at the upper end of the locking seat 511, the middle part of the locking rod 515 is hinged to the locking seat 516, the lower end of the hinge bar 514 is hinged to the connecting block 517, the upper end of the hinge bar 514 passes through the locking seat 511 and is connected to the rear end of the locking rod 515, and one side of the lower conductive module 50 is arranged between the front end of the locking rod 515 and the locking seat 516. The lower conductive test module 5 includes a lower conductive module 50 and two locking mechanisms 51, the two locking mechanisms 51 are arranged on the left and right sides of the mounting base 1, the lower conductive module 50 is arranged on the two locking mechanisms 51 and the two locking mechanisms 51 are used to lock the two ends of the lower conductive module 50 so as to achieve fixation, and when replacing, only the two locking mechanisms 51 need to be unlocked to replace.The locking mechanism 51 includes a locking seat 511, a locking cylinder 512, a locking shaft 513, a hinge strip 514, a locking rod 515, a locking seat 516 and a connecting block 517. The locking cylinder 512 and the locking shaft 513 are arranged on the front and rear sides of the lower end of the locking seat 511. The locking shaft 513 is rotatably matched with the locking seat 511. The output end of the locking cylinder 512 is hinged with the locking shaft 513 so that the locking shaft 513 can be driven to rotate. The locking seat 516 is arranged The upper end of the locking seat 511 and the middle part of the locking rod 515 are hinged to the locking seat 516 so that the locking rod 515 can swing up and down to achieve locking or unlocking. The connecting block 517 is arranged on the locking shaft 513 and rotates with the rotation of the locking shaft 513. The lower end of the hinged bar 514 is hinged to the connecting block 517 and the upper end passes through the locking seat 511 and is hinged to the rear end of the locking rod 515. When the output end of the locking cylinder 512 is extended, the hinged bar 514 is in a vertical state. The front end of the locking rod 515 is parallel to the end surface of the locking seat 516. At this time, the locking rod 515 and the hinge strip 514 form a 90° vertical relationship. When the locking cylinder 512 is not in motion, the hinge point between the locking rod 515 and the locking seat 516 and the hinge point between the locking rod 515 and the hinge strip 514 act as brakes, and the lower end of the hinge strip 514 abuts against the connecting block 517, so that the locking rod 515 and the locking seat 516 remain parallel, and the locking rod 515 is locked. The lower conduction module 50 clamped by the locking seat 516 will also be fixed all the time. Even if the locking cylinder 512 fails, the locking rod 515 cannot be pulled up. At this time, to release the locking state, it is necessary to push the output shaft of the locking cylinder 512 in the opposite direction to retract it. During the retraction process, the locking shaft 513 rotates, and the connecting block 517 rotates accordingly, thereby driving the hinge bar 514 to move obliquely, thereby breaking the vertical state, so that the front end of the locking rod 515 can be tilted upward, thereby releasing the lock. Therefore, it can be seen from the above that the locking mechanism 51 forms a locking state through the locking rod 515 and the locking seat 516, and the locking effect is good. In the locked state, even if the locking cylinder 512 fails, the locking state can be maintained, and it has a self-locking ability, thereby ensuring that the lower conduction module 50 can be kept fixed. In addition, when the lower conduction module 50 needs to be replaced, it only needs to contact the two locking mechanisms 51 to replace it, which is very convenient and fast.

[0030] In this embodiment, the downward pressure test module 3 includes a lifting assembly 31, a quick-change assembly 32 and an upper conduction module 33 which are arranged in sequence from top to bottom. The quick-change assembly 32 includes a support plate 321, a blocking block 322 and two long bearing plates 323. The support plate 321 is connected to the action end of the lifting assembly 31. The two long bearing plates 323 are symmetrically arranged on both sides of the lower end of the support plate 321. The inner sides of the two long bearing plates 323 are both provided with a bearing slide groove 324. The front end of the support plate 321 is provided with a locking groove 325. The blocking block 322 is floatingly arranged on one side of the locking groove 325. The lower conduction module 50 is slidably engaged in the bearing slide groove 324. A limiting column 326 is arranged on the lower conduction module 50. The limiting column 326 is adapted to the locking groove 325 and cooperates with the blocking block 322. The down-pressure test module 3 includes a lifting assembly 31, a quick-change assembly 32 and an upper conduction module 33 which are arranged in sequence from top to bottom. The lifting assembly 31 is used to drive the quick-change assembly 32 and the upper conduction module 33 to move up and down to perform a conduction test. The quick-change assembly 32 is used for the rapid installation or removal of the upper conduction module 33 to achieve the purpose of rapid replacement. The upper conduction module 33 is used to contact and conduct the PCB board to perform a connection test. The quick-change assembly 32 includes a support plate 321, a positioning block 322 and two long bearing plates 323. The support plate 321 is arranged at the action end of the lifting assembly 31 so as to be moved by the lifting assembly 31. The two long bearing plates 32 3 is provided with a snap-in groove 325 for the upper conduction module 33 to slide in for support and fixation, so as to realize the installation of the upper conduction module 33. The snap-in block 322 is arranged on the support plate 321 in a floating manner and cooperates with the snap-in groove 325 provided on the support plate 321. The snap-in groove 325 is used to cooperate with the limit column 326 on the upper conduction module 33. When the upper conduction module 33 is pushed into place, the limit column 326 is snapped into the snap-in groove 325, and then the snap-in block 322 snaps the limit column 326 into the snap-in groove 325, so that the upper conduction module 33 is fixed under the support plate 321, so that the test work can be carried out. As can be seen from the above, the installation or removal operation of the upper conduction module 33 is simple, and it can be installed or removed by controlling the position of the snap-in block 322, which is easy to quickly replace the upper conduction module 33 and has strong compatibility.In addition, the lifting assembly 31 includes a support frame, a screw motor, a left mounting plate, a right mounting plate and four scissor frames, the four scissor frames are hingedly arranged in a rectangular array on the support frame, the front and rear ends of the left mounting plate are respectively hinged to the middle hinge sections of the two scissor frames located at the left end, the front and rear ends of the right mounting plate are respectively hinged to the middle hinge sections of the two scissor frames located at the right end, the screw motor is transversely arranged on the left mounting plate, the transmission screw of the screw motor passes through the right mounting plate and is provided with a fixed plate 410, the transmission screw is transmission-connected to the right mounting plate and rotatably cooperates with the fixed plate 410, and the fixed A plurality of guide posts are arranged between the plate 410 and the left mounting plate, and a plurality of guide sleeves are arranged on the right mounting plate. The guide posts pass through the guide sleeves and slide with the guide sleeves. The support plate 321 is hinged to the lower ends of the four scissor racks. When the screw motor is driven in the forward direction, the transmission screw follows the rotation, the left mounting plate and the right mounting plate move relatively close, the four scissor racks are compressed, and thus the upper conduction module 33 is driven upward. When the screw motor is driven in the reverse direction, the transmission screw follows the rotation, the left mounting plate and the right mounting plate move relatively far away, and the four scissor racks extend, thus driving the upper conduction module 33. As can be seen from the above, through the above structure, the overall structure can be made more compact, does not require too much longitudinal space, and is convenient for production layout.

[0031] In this embodiment, the liftable conveyor line 4 includes a first side plate 41 and a second side plate 42 arranged on both sides of the mounting frame 2, and the first side plate 41 is provided with a first cylinder 43 and a second cylinder 44 at both ends, and the second side plate 42 is provided with a third cylinder 45 and a fourth cylinder 46 at both ends, and the lower ends of the first cylinder 43 and the third cylinder 45 are connected to a first conveyor line 47, and the lower ends of the second cylinder 44 and the fourth cylinder 46 are connected to a second conveyor line 48, the first conveyor line 47 and the second conveyor line 48 cooperate with each other and are arranged in parallel, and the first cylinder 43, the second cylinder 44, the third cylinder 45 and the fourth cylinder 46 act synchronously. The liftable conveyor line 4 includes a first side plate 41 and a second side plate 42 arranged on both sides of the mounting frame 2, the first cylinder 43 and the second cylinder 44 are arranged at the left and right ends of the first side plate 41, the third cylinder 45 and the fourth cylinder 46 are arranged at the left and right ends of the second side plate 42, the first cylinder 43 and the third cylinder 45 are both located at the same end of the mounting frame 2, the second cylinder 44 and the fourth cylinder 46 are both located at the same end of the mounting frame 2, and the two ends of the first conveyor line 47 are connected to the output ends of the first cylinder 43 and the third cylinder 45 so that the first cylinder 43 and the third cylinder 45 can be moved between the first cylinder 43 and the third cylinder 46. 5, the two ends of the second conveying line 48 and the output ends of the second cylinder 44 and the fourth cylinder 46 can be lifted and lowered under the drive of the second cylinder 44 and the fourth cylinder 46, the first conveying line 47 and the second conveying line 48 are arranged in parallel so that the PCB board can be conveyed, the first cylinder 43, the third cylinder 45, the second cylinder 44 and the fourth cylinder 46 act synchronously, so that the first conveying line 47 and the second conveying line 48 can be lifted and lowered at the same time, and the PCB board can be driven to move downward when the conduction test is performed, so that the PCB board and the lower conduction module 50 can be tested for conduction. As can be seen from the above, the overall structure of the liftable conveying line 4 is simple, with lifting ability, and can be lifted and lowered when needed to ensure the smooth progress of the test work, and can also perform conveying work and dock with the external assembly line to realize online operation. In addition, the first conveyor line 47 includes a mounting plate, a transmission wheel group, a conveyor belt and a driving motor. The transmission wheel group is arranged on the side of the mounting plate, the conveyor belt transmission is arranged on the transmission wheel group, and the driving motor is arranged on the mounting plate and is connected to the transmission wheel group.The transmission wheel group includes a plurality of rotating wheels, the conveyor belt is arranged on the transmission wheel group and can rotate, the driving motor drives the transmission wheel group to rotate, thereby driving the conveyor belt to move, the conveyor belt is perpendicular to the mounting plate and the upper end of the conveyor belt is used as a conveying support position to realize the conveying of the PCB board, and the mounting plate is provided with a pressing cylinder for pressing down and fixing the PCB board; the structure of the second conveyor line 48 is the same as that of the first conveyor line 47, so the two ends of the PCB board can be supported through the cooperation between the two, and the PCB board can be conveyed in a state of synchronous movement.

[0032] In this embodiment, support columns 6 are provided on both sides of the front end of the mounting base plate 1, and force columns 7 cooperating with the support columns 6 are provided on both sides of the front end of the mounting frame 2. Locking plates 8 are hinged on both sides of the front end of the mounting frame 2, and the two locking plates 8 are connected by a synchronization rod 9. A fixed hook 10 is provided at the lower end of the locking plate 8, and the fixed hook 10 cooperates with a fixed groove opened at the front end of the support column 6. The two support columns 6 are used to support the mounting frame 2, and the two force-bearing columns 7 are used to dock with the two support columns 6, and the lower ends of the two force-bearing columns 7 are provided with positioning pins that are aligned with the positioning holes at the upper ends of the support columns 6. The locking plate 8 is located at the front side of the force-bearing column 7. Since the locking plate 8 is hingedly arranged at the front end of the mounting frame 2, it can be rotated, and the two locking plates 8 are fixedly connected by the synchronization rod 9 so as to move synchronously. The lower end of the locking plate 8 is provided with the fixing hook 10 that cooperates with the fixing groove. When the mounting frame 2 is covered on the mounting base plate 1, the force-bearing column 7 is docked with the support column 6, and then the synchronization rod 9 is pulled so that the fixing hooks 10 of the two locking plates 8 are inserted into the fixing groove, thereby realizing the locking of the mounting frame 2.

[0033] In this embodiment, a hinged base 12 is provided at the rear end of the mounting base plate 1, and the two sides of the rear end of the mounting frame 2 are hinged to the middle part of the hinged base 12, and auxiliary gas rods 13 are provided on both sides of the upper end of the hinged base 12, and the two ends of the auxiliary gas rods 13 are respectively hinged to the hinged base 12 and the mounting frame 2, and gas springs 14 are provided on both sides of the lower end of the hinged base 12, and the two ends of the gas spring 14 are respectively hinged to the hinged base 12 and the mounting frame 2. The articulated base 12 is fixedly arranged at the rear end of the mounting base plate 1, and the rear end of the mounting frame 2 is hinged to the articulated base 12. An auxiliary gas rod 13 is respectively arranged on both sides of the upper end of the articulated base 12, and a gas spring 14 is respectively arranged on both sides of the lower end of the articulated base 12. By controlling the two auxiliary gas rods 13 and the two gas springs 14, the flipping of the mounting frame 2 can be controlled, thereby realizing automatic flipping without manual flipping, reducing labor intensity and protecting the personal safety of workers during flipping.

[0034] In this embodiment, transverse guide rails 49 are provided on the first side plate 41 and the second side plate 42, and the first cylinder 43, the second cylinder 44, the third cylinder 45 and the fourth cylinder 46 are slidably matched with the transverse guide rails 49 through the fixing plate 410, and a hand screw 411 is threadedly matched on one side of the fixing plate 410, and one end of the hand screw 411 passes through the fixing plate 410 and is provided with a locking block 412, and the inner upper and lower ends of the locking block 412 are provided with hooks 413, and the two hooks 413 are respectively matched with the slots 414 opened at the upper and lower ends of the transverse guide rail 49. The two transverse guide rails 49 are respectively arranged on the outer sides of the first side plate 41 and the second side plate 42. Two fixing plates 410 are slidably arranged on the two transverse guide rails 49. The first cylinder 43, the second cylinder 44, the third cylinder 45 and the fourth cylinder 46 are respectively arranged on the four fixing plates 410. By rotating the hand screw 411, the locking block 412 can be driven to move forward and backward relative to the transverse guide rail 49. After the locking block 412 moves forward and backward, the two hooks 413 can be fitted with the slots 414 of the transverse guide rail 49. When the hand screw 411 is turned to When the outer rotation is outward, the two hooks 413 will firmly hook the transverse guide rail 49, so that the fixed plate 410 cannot slide freely on the transverse guide rail 49, so that the locking of the fixed plate 410 can realize the locking of the distance between the first conveyor line 47 and the second conveyor line 48. By adjusting the position of the corresponding fixed plate 410, the position of the first cylinder 43, the second cylinder 44, the third cylinder 45 and the fourth cylinder 46 can be adjusted, thereby adjusting the distance between the first conveyor line 47 and the second conveyor line 48 to adapt to PCB boards of different widths and enhance adaptability.

[0035] In this embodiment, a plurality of auxiliary pulleys 327 are rotatably arranged on the bearing long plate 323, and the auxiliary pulley 327 is embedded in the inner side of the bearing long plate 323. The upper end of the auxiliary pulley 327 is located in the bearing slide groove 324. The upper end of the support plate 321 is provided with a left limit block 328 and a right limit block 329. The locking block 322 is located between the left limit block 328 and the right limit block 329. The right end of the locking block 322 is connected to a sliding shaft 330 that slidably cooperates with the right limit block 329. A floating spring is sleeved on the sliding shaft 330. The left end of the locking block 322 passes through the left limit block 328 and is located above the locking groove 325. A small part of the auxiliary pulley 327 is exposed in the bearing slide groove 324, which will not hinder the pushing in or pulling out of the upper conduction module 33, and at the same time improve the fluency, making it convenient for the upper conduction module 33 to be quickly pushed in or pulled out, thereby achieving a quick replacement effect; the left limit block 328 and the right limit block 329 are used to limit the moving stroke of the positioning block 322, and the positioning block 322 is slidably matched with the right limit block 329 through the sliding shaft 330, and a floating spring is sleeved on the limiting column 326 so that the positioning block 322 can obtain the ability to float left and right, the left end of the positioning block 322 passes through the left limit block 328 and is gap-matched with the left limit block 328, and the left end of the positioning block 322 is located above the front end of the engaging groove 325, so that the limiting column 326 inserted into the engaging groove 325 can be limited, thereby fixing the movement of the upper conduction module 33.

[0036] In this embodiment, a sensing plate 518 is provided at one end of the locking shaft 513, and a sensor 519 cooperating with the sensing plate 518 is provided at one end of the locking seat 511 close to the sensing plate 518. A U-shaped block 520 is also provided on the locking shaft 513, and the open end of the U-shaped block 520 is connected to the locking shaft 513, and the closed end of the U-shaped block 520 is provided with an upper bend section 521, and the upper bend section 521 is hinged to the output end of the locking cylinder 512. The sensing plate 518 rotates with the rotation of the locking shaft 513, and the sensor 519 cooperates with the sensing plate 518 to detect the rotation angle of the locking shaft 513, thereby determining the driving stroke of the driving cylinder and deriving whether the locking rod 515 is in a locked state or an unlocked state, so as to facilitate operation by the operator; the driving cylinder is hinged to the locking shaft 513 through the U-shaped block 520 and the upper bend section 521, and the open end of the U-shaped block 520 is fixedly connected to the rotation, and the upper bend section 521 is bent upward so that the driving cylinder can better drive the locking shaft 513 to rotate, and the U-shaped block 520 and the upper bend section 521 are integrally formed.

[0037] In this embodiment, a square plate 15 is provided between the two support columns 6, and an embedding groove is provided at the upper end of the square plate 15 and the inner side of the support column 6, and an acrylic protective plate 16 is movably provided on the embedding groove. The square plate 15 is provided on the installation base plate 1 and is located between the two support columns 6. The square plate 15 is provided with a horizontal embedding groove, and the inner side of the support column 6 is provided with a vertical embedding groove. The three embedding grooves are connected, and the acrylic protective plate 16 is fixed by the three embedding grooves and can be pulled out upward or inserted downward. The acrylic protective plate 16 can prevent workers or equipment from entering the interior of the device when the device is working, thereby playing a protective role.

[0038] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A PCB testing device, characterized in that: It comprises a mounting base plate (1), a mounting frame (2), a downward pressure test module (3), a liftable conveyor line (4) and a lower conduction test module (5); one end of the mounting frame (2) is hinged to the mounting base plate (1); the downward pressure test module (3) and the liftable conveyor line (4) are cooperatively arranged in the mounting frame (2); the downward pressure test module (3) is located above the liftable conveyor line (4); the lower conduction test module (5) is arranged on the mounting base plate (1) and below the liftable conveyor line (4) and cooperates with the liftable conveyor line (4); the lower conduction test module (5) comprises locking mechanisms (51) arranged on both sides of the mounting base plate (1) A lower conduction module (50) is arranged between the two locking mechanisms (51), the locking mechanism (51) comprising a locking seat (511), a locking cylinder (512), a locking shaft (513), a hinge strip (514), a locking rod (515) and a locking seat (516), the locking cylinder (512) and the locking shaft (513) are respectively arranged on both sides of the lower end of the locking seat (511), and the locking shaft (513) is rotatably matched with the locking seat (511), the output end of the locking cylinder (512) is hinged to the locking shaft (513), the locking shaft (513) is provided with a connecting block (517), and the locking seat (516) is arranged on the locking seat (511). 11), the middle part of the locking rod (515) is hinged to the locking seat (516), the lower end of the hinge strip (514) is hinged to the connecting block (517), the upper end of the hinge strip (514) passes through the locking seat (511) and is connected to the rear end of the locking rod (515), and one side of the lower conduction module (50) is arranged between the front end of the locking rod (515) and the locking seat (516); the downward pressure test module (3) comprises a lifting assembly (31), a quick-change assembly (32) and an upper conduction module (33) which are arranged in sequence from top to bottom, and the quick-change assembly (32) comprises a support plate (321), a positioning block (322) and two long load-bearing plates (323), The support plate (321) is connected to the action end of the lifting assembly (31); the two bearing long plates (323) are symmetrically arranged on both sides of the lower end of the support plate (321); the inner sides of the two bearing long plates (323) are provided with bearing slide grooves (324); the front end of the support plate (321) is provided with a clamping groove (325); the clamping block (322) is floatingly arranged on one side of the clamping groove (325); the lower conduction module (50) is slidably engaged in the bearing slide groove (324); a limiting column (326) is arranged on the lower conduction module (50); the limiting column (326) is adapted to the clamping groove (325) and cooperates with the clamping block (322);The liftable conveyor line (4) comprises a first side plate (41) and a second side plate (42) arranged on both sides of the mounting frame (2); a first cylinder (43) and a second cylinder (44) are respectively arranged at two ends of the first side plate (41); a third cylinder (45) and a fourth cylinder (46) are respectively arranged at two ends of the second side plate (42); the lower ends of the first cylinder (43) and the third cylinder (45) are connected to a first conveyor line (47); the lower ends of the second cylinder (44) and the fourth cylinder (46) are connected to a second conveyor line (48); the first conveyor line (47) and the second conveyor line (48) are matched and arranged in parallel; the first cylinder (43), the second cylinder (44), the third cylinder (45) and the fourth cylinder (46) act synchronously. ; 2. A PCB testing device according to claim 1, characterized in that: Support columns (6) are arranged on both sides of the front end of the mounting base plate (1), force-bearing columns (7) matching with the support columns (6) are arranged on both sides of the front end of the mounting frame (2), locking plates (8) are hingedly connected on both sides of the front end of the mounting frame (2), the two locking plates (8) are connected by a synchronization rod (9), and the lower end of the locking plate (8) is provided with a fixing hook (10), and the fixing hook (10) matches with a fixing groove (11) provided at the front end of the supporting column (6).

3. A PCB testing device according to claim 1, characterized in that: A hinged base (12) is provided at the rear end of the mounting base plate (1), and two sides of the rear end of the mounting frame (2) are hinged to the middle of the hinged base (12). Auxiliary gas rods (13) are provided at both sides of the upper end of the hinged base (12), and two ends of the auxiliary gas rods (13) are respectively hinged to the hinged base (12) and the mounting frame (2). Gas springs (14) are provided at both sides of the lower end of the hinged base (12), and two ends of the gas springs (14) are respectively hinged to the hinged base (12) and the mounting frame (2).

4. A PCB testing device according to claim 1, characterized in that: The first side plate (41) and the second side plate (42) are both provided with a transverse guide rail (49); the first cylinder (43), the second cylinder (44), the third cylinder (45) and the fourth cylinder (46) are all slidably matched with the transverse guide rail (49) via a fixing plate (410); a hand screw (411) is threadedly matched on one side of the fixing plate (410); one end of the hand screw (411) passes through the fixing plate (410) and is provided with a locking block (412); hooks (413) are provided at the upper and lower ends of the inner side of the locking block (412); the two hooks (413) respectively match with the slots (414) provided at the upper and lower ends of the transverse guide rail (49).

5. A PCB testing device according to claim 1, characterized in that: A plurality of auxiliary pulleys (327) are rotatably arranged on the bearing long plate (323). The auxiliary pulleys (327) are embedded on the inner side of the bearing long plate (323). The upper ends of the auxiliary pulleys (327) are located in the bearing slide groove (324). A left limit block (328) and a right limit block (329) are arranged on the upper end of the support plate (321). The clamping block (322) is located between the left limit block (328) and the right limit block (329). The right end of the clamping block (322) is connected to a sliding shaft (330) that is slidably matched with the right limit block (329). A floating spring is sleeved on the sliding shaft (330). The left end of the clamping block (322) passes through the left limit block (328) and is located above the clamping groove (325).

6. A PCB testing device according to claim 1, characterized in that: A sensing sheet (518) is disposed at one end of the locking shaft (513); a sensor (519) matching the sensing sheet (518) is disposed at one end of the locking seat (511) close to the sensing sheet (518); a U-shaped block (520) is further disposed on the locking shaft (513); an open end of the U-shaped block (520) is connected to the locking shaft (513); an upper curved section (521) is disposed at a closed end of the U-shaped block (520); and the upper curved section (521) is hinged to an output end of the locking cylinder (512).

7. A PCB testing device according to claim 2, characterized in that: A square plate (15) is arranged between the two support columns (6), and an embedding groove is provided at the upper end of the square plate (15) and the inner side of the support column (6), and an acrylic protective plate (16) is movably arranged on the embedding groove.

Images