CN114002580A

CN114002580A - PCB test equipment

Info

Publication number: CN114002580A
Application number: CN202111287301.3A
Authority: CN
Inventors: 徐桂强; 刘雄明; 肖尧; 兰远航
Original assignee: Zhuhai Bojay Electronics Co Ltd
Current assignee: Zhuhai Bojay Electronics Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-02-01

Abstract

The invention aims to provide the PCB testing equipment which is reasonable in design, simple to operate and strong in compatibility. The device comprises an installation bottom plate, an installation rack, a downward pressing test module, a liftable conveyor line and a downward conduction test module, wherein one end of the installation rack is hinged with the installation bottom plate, the downward pressing test module and the liftable conveyor line are arranged in the installation rack in a matched mode, the downward pressing test module is located above the liftable conveyor line, and the downward conduction test module is arranged on the installation bottom plate, is located below the liftable conveyor line and is matched with the liftable conveyor line. The invention is applied to the technical field of test equipment.

Description

PCB test equipment

Technical Field

The invention relates to the technical field of PCB testing, in particular to PCB testing equipment.

Background

A PCB, i.e., a printed wiring board, which is called a printed board for short, is one of important parts in the electronic industry. Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. The printed circuit board has good product consistency, can adopt standardized design, and is beneficial to realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the exchange and maintenance of the whole product are facilitated. At present, printed wiring boards have been used very widely in the manufacture of electronic products.

The PCB board usually needs to be conducted and detected after production is completed, and the structure of the existing test equipment is generally that an upper test module and a lower test module are arranged in a case or the upper test module and the lower test module are matched with a conveying line which transversely penetrates through the case in a lifting or descending mode, so that the PCB board on the conveying line is tested. However, with the development of technology, the upgrading of products is also accelerated, so that for testing equipment, it is necessary to have higher compatibility, that is, the testing module can be quickly replaced to adapt to different products, so as to deal with new products. The chassis needs to be dismantled when changing the test module to current test equipment to easily receive the hindrance of transfer chain when changing the test module, it is very inconvenient, have the limitation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the PCB test equipment which is reasonable in design, simple to operate and strong in compatibility.

The technical scheme adopted by the invention is as follows: the device comprises an installation bottom plate, an installation rack, a downward pressing test module, a liftable conveyor line and a downward conduction test module, wherein one end of the installation rack is hinged with the installation bottom plate, the downward pressing test module and the liftable conveyor line are arranged in the installation rack in a matched mode, the downward pressing test module is located above the liftable conveyor line, and the downward conduction test module is arranged on the installation bottom plate, is located below the liftable conveyor line and is matched with the liftable conveyor line.

Further, the lower conduction testing module comprises locking mechanisms arranged at two sides of the mounting bottom plate, a lower conduction module is arranged between the two locking mechanisms, the locking mechanism comprises a locking seat, a locking cylinder, a locking rotating shaft, a hinge strip, a locking rod and a locking seat, the locking cylinder and the locking rotating shaft are respectively arranged at two sides of the lower end of the locking seat and are in rotating fit with the locking seat, the output end of the locking cylinder is hinged with the locking rotating shaft, the locking rotating shaft is provided with a connecting block, the lock catch seat is arranged at the upper end of the locking seat, the middle part of the lock rod is hinged with the lock catch seat, the lower extreme of articulated strip with the connecting block is articulated mutually, the upper end of articulated strip is passed locking seat and with the rear end of locking lever is connected, the one side that switches on the module down sets up the locking lever front end with between the hasp seat.

Further, push down the test module and include lifting unit, quick change subassembly that from top to bottom set gradually and go up the module that switches on, the quick change subassembly includes backup pad, screens piece and two and bear the long slab, the backup pad with lifting unit's action end is connected, two bear the long slab symmetry and set up the lower extreme both sides of backup pad, two bear the inboard of long slab and all seted up the spout that bears, the block groove has been seted up to the front end of backup pad, the screens piece floats and sets up one side in the block groove, it slides the gomphosis and is in to switch on the module down in bearing the spout, it is provided with spacing post to switch on the module down, spacing post with block groove looks adaptation and with the screens piece cooperatees.

Further, liftable transfer chain is including setting up the first curb plate and the second curb plate of installation frame both sides, the both ends of first curb plate are provided with first cylinder and second cylinder respectively, the both ends of second curb plate are provided with third cylinder and fourth cylinder respectively, first cylinder with the lower extreme of third cylinder is connected with first transfer chain, the second cylinder with the lower extreme of fourth cylinder is connected with the second transfer chain, first transfer chain with the second transfer chain cooperatees and parallel arrangement, first cylinder the second cylinder the third cylinder with the fourth cylinder synchronization action.

Furthermore, the front end both sides of mounting plate are provided with the support column, the front end both sides of installation frame be provided with support column matched with stress column, the front end both sides of installation frame articulate there is the lockplate, two the lockplate is connected through the synchronizing bar, the lower extreme of lockplate is provided with fixed barb, fixed barb with set up the fixed recess of support column front end cooperatees.

Further, the rear end of mounting plate is provided with articulated base, the rear end both sides of installation frame with articulated base's middle part is articulated mutually, articulated base's upper end both sides are provided with supplementary gas pole, supplementary gas pole both ends respectively with articulated base reaches the installation frame is articulated mutually, articulated base's lower extreme both sides are provided with the air spring, the both ends of air spring respectively with articulated base reaches the installation frame is articulated mutually.

Further, all be provided with transverse guide on the first curb plate with the second curb plate, first cylinder the second cylinder the third cylinder with the fourth cylinder all through the fixed plate with transverse guide sliding fit, one side screw-thread fit of fixed plate has the hand screw, the one end of hand screw runs through the fixed plate and is provided with the locking piece, the inboard upper and lower extreme of locking piece all is provided with the pothook, two the pothook respectively with set up the draw-in groove at both ends cooperatees about transverse guide.

Further, it is provided with a plurality of auxiliary pulley to rotate on bearing the long slab, auxiliary pulley inlays and establishes bear the inboard of long slab, auxiliary pulley's upper end is located bear in the spout, the upper end of backup pad is provided with left stopper and right stopper, the screens piece is located between left stopper and the right stopper, the right-hand member of screens piece be connected with right stopper sliding fit's slide shaft, the cover is equipped with floating spring on the slide shaft, the left end of screens piece is passed left side stopper is in the top in block groove.

Furthermore, the one end of locking pivot is provided with the response piece, the locking seat is close to the one end of response piece be provided with response piece matched with sensor, still be provided with U type piece in the locking pivot, the open end of U type piece with the locking pivot is connected, the closed end of U type piece is provided with the section of bending upward, the section of bending upward with the output end of locking cylinder is articulated mutually.

Further, two be provided with square board between the support column, the upper end of square board with the gomphosis groove has all been seted up to the inboard of support column, the activity is provided with the ya keli guard plate on the gomphosis groove.

The invention has the beneficial effects that: the PCB lifting and conducting device comprises a mounting base plate, a mounting rack, a pressing-down testing module, a lifting conveying line and a pressing-down testing module, wherein the rear end of the mounting rack is hinged with the rear end of the mounting base plate so as to be overturned; the during operation, the lid of mounting frame closes on mounting plate, push down the test module, liftable transfer chain and conduction test module down distribute from top to bottom in proper order, when the PCB board flowed into liftable transfer chain and set for the position, liftable transfer chain stops the transport, then push down the test module and move down the up end contact that realizes the PCB board and switch on, liftable transfer chain moves down afterwards, push down the test module and move down in step, the lower end contact that reaches the PCB board switches on with conduction test module contact down, realize the two-sided conduction of PCB board from this, thereby can test. The invention has the advantages that the overall design is reasonable, when the test module suitable for a new product needs to be replaced, the installation rack is connected with the installation base plate in a hinged mode, and the lifting conveying line can lift up and down, so that the replacement of the press-down test module or the lower conduction test module is very convenient, the operation is simple, the quick replacement can be realized, and the compatibility is strong.

Drawings

FIG. 1 is a schematic perspective view of the present invention in a pressed state;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is a schematic perspective view of the present invention in an open position;

FIG. 4 is a schematic perspective view of the present invention at another angle in an open position;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic perspective view of the locking mechanism of the present invention;

FIG. 7 is a schematic perspective view of another angle of the locking mechanism of the present invention;

FIG. 8 is a schematic perspective view of a push-down test module according to the present invention;

FIG. 9 is a schematic view of the structure of the end of the load carrying long plate;

FIG. 10 is a schematic perspective view of a partial structure of a push-down test module according to the present invention;

FIG. 11 is a schematic perspective view of the liftable conveyor line of the invention;

fig. 12 is an enlarged view of a portion C in fig. 11.

Detailed Description

As shown in fig. 1 to 11, in this embodiment, the present invention includes an installation base plate 1, an installation frame 2, a press-down test module 3, a liftable conveyor line 4, and a lower conduction test module 5, wherein one end of the installation frame 2 is hinged to the installation base plate 1, the press-down test module 3 and the liftable conveyor line 4 are cooperatively disposed in the installation frame 2, the press-down test module 3 is located above the liftable conveyor line 4, and the lower conduction test module 5 is disposed on the installation base plate 1, located below the liftable conveyor line 4, and is cooperatively engaged with the liftable conveyor line 4. The PCB lifting and conducting device comprises a mounting base plate 1, a mounting rack 2, a downward pressing test module 3, a lifting conveying line 4 and a downward conducting test module 5, wherein the rear end of the mounting rack 2 is hinged with the rear end of the mounting base plate 1 so as to be overturned, the downward pressing test module 3 is used for downward pressing a PCB positioned on the lifting conveying line 4 so as to realize contact conduction of an upper end face contact of the PCB, the lifting conveying line 4 can perform lifting action for conveying the PCB and can be externally connected with a production line to realize online operation, and the downward conducting test module 5 is used for being matched with the lifting conveying line 4 to carry out contact conduction on a lower end face contact of the PCB positioned on the lifting conveying line 4; during operation, the lid of installing frame 2 closes on the mounting plate 1, push down test module 3 liftable transfer chain 4 with conduction test module 5 distributes from top to bottom down in proper order, flows into when the position is set for to liftable transfer chain 4, liftable transfer chain 4 stops carrying, then push down test module 3 and move down the upper end face contact that realizes the PCB board and switch on, subsequently liftable transfer chain 4 moves down, push down test module 3 and move down in step, lower end face contact and conduction test module 5 contact conduction down of PCB board, realize the two-sided conduction of PCB board from this to can test, after the test is accomplished, liftable transfer chain 4 with push down test module 3 resets, afterwards liftable transfer chain 4 carries, makes the PCB board of accomplishing the test flow. It can be seen from the above that the invention has reasonable overall design, when the test module suitable for a new product needs to be replaced, the installation rack 2 is connected with the installation base plate 1 in a hinged mode, and the liftable conveyor line 4 can be lifted at the same time, so that the replacement of the push-down test module 3 or the lower conduction test module 5 is very convenient, the operation is simple, and the quick replacement and the strong compatibility can be realized.

In this embodiment, the lower conduction test module 5 includes the locking mechanism 51 disposed at both sides of the installation bottom plate 1, and the lower conduction module 50 is disposed between two locking mechanisms 51, the locking mechanism 51 includes a locking seat 511, a locking cylinder 512, a locking rotating shaft 513, a hinge strip 514, a locking rod 515 and a locking seat 516, the locking cylinder 512 and the locking rotating shaft 513 are respectively disposed at both sides of the lower end of the locking seat 511 and the locking rotating shaft 513 is in rotating fit with the locking seat 511, the output end of the locking cylinder 512 is hinged to the locking rotating shaft 513, a connecting block 517 is disposed on the locking rotating shaft 513, the locking seat 516 is disposed at the upper end of the locking seat 511, the middle portion of the locking rod 515 is hinged to the locking seat 516, the lower end of the hinge strip 514 is hinged to the locking rod 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 seat 515, one side of the lower conduction module 50 is disposed between the front end of the locking bar 515 and the locking holder 516. Lower conduction test module 5 includes lower conduction module 50 and two locking mechanical system 51, two locking mechanical system 51 sets up the left and right sides of mounting plate 1, lower conduction module 50 sets up two locking mechanical system 51 is last and by two locking mechanical system 51 locks its both ends and thereby realizes fixedly, only needs two during the change locking mechanical system 51 unblock can change. The locking mechanism 51 comprises a locking seat 511, a locking cylinder 512, a locking rotating 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 rotation shaft 513 are disposed at front and rear sides of the lower end of the locking seat 511, the locking rotating shaft 513 is rotatably matched with the locking seat 511, the output end of the locking cylinder 512 is hinged with the locking rotating shaft 513 so as to drive the locking rotating shaft 513 to rotate, the locking buckle seat 516 is arranged at the upper end of the locking seat 511, the middle part of the locking rod 515 is hinged with the locking buckle seat 516, so that the locking rod 515 can swing up and down to realize locking or unlocking, the connecting block 517 is disposed on the locking rotation shaft 513 and rotates as the locking rotation shaft 513 rotates, the lower end of the hinge bar 514 is hinged with the connecting block 517, and the upper end of the hinge bar passes through the locking seat 511 and is hinged with the rear end of the locking bar 515; when the output end of the lock cylinder 512 is extended, the hinge bar 514 is in a vertical state, the front end of the lock bar 515 is parallel to the end surface of the lock catch holder 516, at this time, the lock bar 515 and the hinge bar 514 form a 90-degree vertical relationship, when the locking cylinder 512 does not act, two points, namely, a hinge point of the lock rod 515 and the lock catch seat 516 and a hinge point of the lock rod 515 and the hinge strip 514, play a braking role, and the lower end of the hinge strip 514 abuts against the connecting block 517, so that the locking bar 515 is parallel to the latch holder 516, and the lower conduction module 50 clamped by the locking bar 515 and the latch holder 516 is always fixed, even if the locking cylinder 512 fails, the locking bar 515 cannot be pulled up, and at this time, to release the locking state, the output shaft of the locking cylinder 512 needs to be pushed reversely to retract; in the retraction process, the locking rotating shaft 513 rotates, and the connecting block 517 rotates to drive the hinge bar 514 to move obliquely, so that the vertical state is broken, the front end of the locking rod 515 can tilt upwards, and the locking is released. Therefore, as can be seen from the above description, the locking mechanism 51 is in a locked state by the lock bar 515 and the lock catch base 516, and has a good locking effect, and in the locked state, the locking mechanism can maintain the locked state even if the locking cylinder 512 fails, and has a self-locking capability, so as to ensure that the lower conducting module 50 can maintain a fixed state; in addition, when the lower conduction module 50 needs to be replaced, only two locking mechanisms 51 need to be contacted for replacement, which is very convenient and fast.

In this embodiment, the push-down test module 3 includes lifting unit 31, quick change module 32 and the last module 33 that switches on that from top to bottom sets gradually, quick change module 32 includes backup pad 321, screens piece 322 and two bear long board 323, backup pad 321 with lifting unit 31's action end is connected, two bear long board 323 symmetry and set up the lower extreme both sides of backup pad 321, two bear the inboard of long board 323 and all seted up and bear spout 324, the block 325 has been seted up to the front end of backup pad 321, the setting that floats of blocks piece 322 is in one side of block 325, it is in to switch on module 50 slip gomphosis down in bearing spout 324, switch on module 50 down and be provided with spacing post 326, spacing post 326 with block 325 looks adaptation and with block 322 cooperatees. The downward-pressing test module 3 comprises a lifting assembly 31, a quick-change assembly 32 and an upper conduction module 33 which are sequentially arranged from top to bottom, the lifting assembly 31 is used for driving the quick-change assembly 32 and the upper conduction module 33 to move up and down so as to perform conduction test, the quick-change assembly 32 is used for quickly installing or disassembling the upper conduction module 33 so as to achieve the purpose of quick change, and the upper conduction module 33 is used for performing contact conduction on a PCB so as to perform connection test; the quick-change assembly 32 comprises a support plate 321, a clamping block 322 and two long bearing plates 323, the support plate 321 is disposed at an action end of the lifting assembly 31 and is driven by the lifting assembly 31 to move, clamping grooves 325 are disposed on opposite sides of the two long bearing plates 323 and are used for the upper conduction module 33 to slide in for supporting and fixing, so as to realize installation of the upper conduction module 33, the clamping block 322 is floatingly disposed on the support plate 321 from left to right and is matched with the clamping grooves 325 disposed on the support plate 321, the clamping grooves 325 are used for being matched with the limit posts 326 on the upper conduction module 33, when the upper conduction module 33 is pushed in place, the limit posts 326 are clamped in the clamping grooves 325, and then the clamping block 322 clamps the limit posts 326 in the clamping grooves 325, so that the upper conduction module 33 is fixed below the support plate 321, thereby enabling test work. It can be seen from the above that, for the simple operation of installing or disassembling the upper conduction module 33, only the position of the clamping block 322 needs to be controlled to install or disassemble, so that the upper conduction module 33 can be quickly replaced, and the compatibility is strong. In addition, the lifting assembly 31 includes a support frame, a lead screw motor, a left mounting plate, a right mounting plate and four scissor holders, the four scissor holders are hinged to the support frame in a rectangular array, the front and rear ends of the left mounting plate are respectively hinged to the middle hinge sections of the two scissor holders 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 holders at the right end, the lead screw motor is transversely disposed on the left mounting plate, a transmission lead screw of the lead screw motor passes through the right mounting plate and is provided with a fixing plate 410, the transmission lead screw is in transmission connection with the right mounting plate and is rotatably matched with the fixing plate 410, a plurality of guide posts are disposed between the fixing plate 410 and the left mounting plate, a plurality of guide sleeves are disposed on the right mounting plate, and the guide posts pass through the guide sleeves and are slidably matched with the guide sleeves, the supporting plate 321 is hinged with the lower ends of the four scissor holders; when during the screw motor forward drive, the rotation is followed to the transmission lead screw, left side mounting panel with right side mounting panel removes and is close to relatively, four thereby the scissors frame compression drives it moves on to switch on module 33, works as during screw motor reverse drive, the rotation is followed to the transmission lead screw, left side mounting panel with right side mounting panel removes and keeps away from relatively, four thereby the scissors frame extension drives on switch on module 33. Therefore, the whole structure is more compact through the structure, excessive longitudinal space is not needed, and the production layout is convenient.

In this embodiment, liftable transfer chain 4 is including setting up first curb plate 41 and the second curb plate 42 of installation frame 2 both sides, the both ends of first curb plate 41 are provided with first cylinder 43 and second cylinder 44 respectively, the both ends of second curb plate 42 are provided with third cylinder 45 and fourth cylinder 46 respectively, first cylinder 43 with the lower extreme of third cylinder 45 is connected with first transfer chain 47, second cylinder 44 with the lower extreme of fourth cylinder 46 is connected with second transfer chain 48, first transfer chain 47 with second transfer chain 48 cooperatees and parallel arrangement, first cylinder 43 second cylinder 44 third cylinder 45 with fourth cylinder 46 synchronization motion. The liftable conveyor line 4 comprises a first side plate 41 and a second side plate 42 which are arranged at two sides of the installation rack 2, a first air cylinder 43 and a second air cylinder 44 are arranged at the left end and the right end of the first side plate 41, a third air cylinder 45 and a fourth air cylinder 46 are arranged at the left end and the right end of the second side plate 42, the first air cylinder 43 and the third air cylinder 45 are arranged at the same end of the installation rack 2, the second air cylinder 44 and the fourth air cylinder 46 are arranged at the same end of the installation rack 2, two ends of a first conveyor line 47 are connected with output ends of the first air cylinder 43 and the third air cylinder 45 so as to be capable of lifting under the driving of the first air cylinder 43 and the third air cylinder 45, two ends of a second conveyor line 48 are connected with output ends of the second air cylinder 44 and the fourth air cylinder 46 so as to be capable of lifting under the driving of the second air cylinder 44 and the fourth air cylinder 46, the first conveying line 47 and the second conveying line 48 are arranged in parallel, so that the PCB can be conveyed, the first cylinder 43, the third cylinder 45, the second cylinder 44 and the fourth cylinder 46 synchronously act, the first conveying line 47 and the second conveying line 48 can be lifted simultaneously, the PCB can be driven to move downwards during conduction testing, and the PCB and the lower conduction module 50 are enabled to conduct testing. It can be seen from the above that, liftable transfer chain 4 overall structure is simple, has the lift ability, can go up and down the action when needing, guarantees going on smoothly of test work, can carry out the work of carrying simultaneously, realizes online operation with external assembly line butt joint. In addition, first transfer chain 47 includes mounting panel, transmission wheelset, conveyor belt and driving motor, the transmission wheelset sets up the side of mounting panel, the conveyor belt transmission sets up on the transmission wheelset, driving motor sets up on the mounting panel and with the transmission wheelset transmission is connected. The transmission wheel set comprises a plurality of rotating wheels, the conveying belt is arranged on the transmission wheel set and can rotate, the driving motor drives the transmission wheel set to rotate so as to drive the conveying belt to move, the conveying belt is perpendicular to the mounting plate, the upper end of the conveying belt serves as a conveying supporting position to convey the PCB, and a pressing cylinder used for pressing and fixing the PCB is arranged on the mounting plate; the second transfer line 48 has the same structure as the first transfer line 47, so that both ends of the PCB board can be supported by cooperation therebetween, and the PCB board can be transferred in a synchronous motion state.

In this embodiment, the front end both sides of mounting baseplate 1 are provided with support column 6, the front end both sides of mounting rack 2 be provided with support column 6 matched with stress column 7, the front end both sides of mounting rack 2 articulate there is lockplate 8, two lockplate 8 is connected through synchronizing bar 9, the lower extreme of lockplate 8 is provided with fixed barb 10, fixed barb 10 with set up the fixed recess cooperation of support column 6 front end. Two the support column 6 is used for right the installation frame 2 supports, two the stress column 7 is used for with two the butt joint of support column 6, and two the lower extreme of stress column 7 all is provided with the locating pin spare with the location mouth of support column 6 upper end is counterpointed, lockplate 8 is located the front side of stress column 7, because lockplate 8 adopts articulated mode to set up the front end of installation frame 2, consequently can rotate, and two lockplate 8 by thereby synchronous action of synchronizing bar 9 fixed connection, lockplate 8's lower extreme sets up fixed barb 10 with fixed recess cooperatees, when installation frame 2 closes on mounting plate 1, stress column 7 with support column 6 docks, then stimulate synchronizing bar 9 makes two lockplate 8 fixed barb 10 card go into in the fixed recess, thereby achieving locking of the mounting frame 2.

In this embodiment, the rear end of mounting plate 1 is provided with hinged base 12, the rear end both sides of installation frame 2 with the middle part of hinged base 12 is articulated mutually, the upper end both sides of hinged base 12 are provided with supplementary gas pole 13, the both ends of supplementary gas pole 13 respectively with hinged base 12 and installation frame 2 is articulated mutually, the lower extreme both sides of hinged base 12 are provided with air spring 14, the both ends of air spring 14 respectively with hinged base 12 and installation frame 2 are articulated mutually. The fixed setting of articulated base 12 is in the rear end of mounting plate 1, the rear end of installing frame 2 with articulated base 12 is articulated mutually, the upper end both sides of articulated base 12 are provided with an supplementary gas pole 13 respectively, the lower extreme both sides of articulated base 12 are provided with an air spring 14 respectively, and through controlling two supplementary gas pole 13 and two air spring 14, it is right to realize the upset of installing frame 2 is controlled, realizes automatic upset from this, does not need to overturn through artifical manual, reduces intensity of labour and can protect workman's personal safety when the upset.

In this embodiment, 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 in sliding fit with the transverse guide rail 49 through a fixing plate 410, a hand screw 411 is in threaded fit with one side of the fixing plate 410, one end of the hand screw 411 penetrates through the fixing plate 410 and is provided with a locking block 412, the upper end and the lower end of the inner side of the locking block 412 are both provided with hooks 413, and the two hooks 413 are respectively matched with clamping grooves 414 formed at the upper end and the lower end of the transverse guide rail 49. The two transverse guide rails 49 are respectively arranged at the outer sides of the first side plate 41 and the second side plate 42, the two fixing plates 410 are respectively arranged on the two transverse guide rails 49 in a sliding manner, the first air cylinder 43, the second air cylinder 44, the third air cylinder 45 and the fourth air cylinder 46 are respectively arranged on the four fixing plates 410, the locking block 412 can be driven to move back and forth relative to the transverse guide rails 49 by screwing the hand screw 411, whether the two hooks 413 are attached to the clamping grooves 414 of the transverse guide rails 49 after the locking block 412 moves back and forth can be ensured, when the hand screw 411 is screwed out to the limit outwards, the two hooks 413 firmly hook the transverse guide rails 49, so that the fixing plates 410 cannot freely slide on the transverse guide rails 49, the fixing plates 410 are locked, and the distance between the first conveying line 47 and the second conveying line 48 can be locked, the positions of the first cylinder 43, the second cylinder 44, the third cylinder 45 and the fourth cylinder 46 can be adjusted by adjusting the corresponding positions of the fixing plate 410, so that the distance between the first conveying line 47 and the second conveying line 48 can be adjusted to adapt to PCB boards with different widths, and the adaptability is improved.

In this embodiment, a plurality of auxiliary pulleys 327 are rotatably disposed on the long bearing plate 323, the auxiliary pulleys 327 are embedded inside the long bearing plate 323, the upper ends of the auxiliary pulleys 327 are disposed in the bearing sliding grooves 324, a left limit block 328 and a right limit block 329 are disposed at the upper end of the supporting plate 321, the locking block 322 is disposed between the left limit block 328 and the right limit block 329, a sliding shaft 330 slidably engaged with the right limit block 329 is connected to the right end of the locking block 322, a floating spring is sleeved on the sliding shaft 330, and 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 chute 324, so that the upper conduction module 33 is not hindered from being pushed in or pulled out, and the smoothness is improved, so that the upper conduction module 33 can be conveniently pushed in or pulled out quickly, and a quick replacement effect is achieved; the left limit block 328 and the right limit block 329 are used for limiting the moving stroke of the clamping block 322, the clamping block 322 is in sliding fit with the right limit block 329 through the sliding shaft 330, a floating spring is sleeved on the limit post 326 to enable the clamping block 322 to obtain the left-right floating capacity, the left end of the clamping block 322 penetrates through the left limit block 328 and is in clearance fit with the left limit block 328, the left end of the clamping block 322 is located above the front end of the clamping groove 325, so that the limit post 326 clamped into the clamping groove 325 can be limited, and the movement of the upper conduction module 33 is fixed.

In this embodiment, one end of the locking rotating shaft 513 is provided with a sensing piece 518, one end of the locking seat 511, which is close to the sensing piece 518, is provided with a sensor 519 which is matched with the sensing piece 518, the locking rotating shaft 513 is further provided with a U-shaped block 520, the open end of the U-shaped block 520 is connected with the locking rotating shaft 513, the closed end of the U-shaped block 520 is provided with an upward bending section 521, and the upward bending section 521 is hinged to the output end of the locking cylinder 512. The sensing piece 518 rotates along with the rotation of the locking rotating shaft 513, and the sensor 519 is matched with the sensing piece 518 to detect the rotation angle of the locking rotating shaft 513, so that the driving stroke of the driving cylinder is judged, and the locking rod 515 is in a locking state or an unlocking state, so that an operator can operate the locking rod conveniently; the driving cylinder passes through U type piece 520 with go up curved section 521 with locking pivot 513 articulates mutually, the open end of U type piece 520 with rotate fixed connection, go up curved section 521 kickup so that the driving cylinder better drives locking pivot 513 rotates, U type piece 520 with go up curved section 521 integrated into one piece.

In this embodiment, a square plate 15 is disposed between the two support columns 6, the upper end of the square plate 15 and the inner side of the support columns 6 are both provided with an engagement groove, and an acrylic protection plate 16 is movably disposed on the engagement groove. The square plate 15 is arranged on the mounting base plate 1 and located between the two support columns 6, the square plate 15 is provided with a transverse embedding groove, the inner sides of the support columns 6 are provided with vertical embedding grooves, the three embedding grooves are communicated, the acrylic protection plate 16 is fixed through the three embedding grooves and can be upwards drawn out or downwards inserted, and through the acrylic protection plate 16, equipment can be prevented from entering the equipment by workers or equipment during working, and a protection effect is achieved.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims

1. A PCB test equipment which characterized in that: it includes mounting plate (1), mounting frame (2), pushes down test module (3), liftable transfer chain (4) and switches on test module (5) down, the one end of mounting frame (2) with mounting plate (1) is articulated mutually, push down test module (3) with liftable transfer chain (4) cooperation sets up in mounting frame (2), it is located to push down test module (3) the top of liftable transfer chain (4), switch on test module (5) sets up down on mounting plate (1) and be in the below of liftable transfer chain (4) and with liftable transfer chain (4) cooperate.

2. The PCB testing apparatus of claim 1, wherein: the lower conduction test module (5) comprises locking mechanisms (51) arranged on two sides of the installation bottom plate (1), a lower conduction module (50) is arranged between the two locking mechanisms (51), each locking mechanism (51) comprises a locking seat (511), a locking cylinder (512), a locking rotating shaft (513), an articulated strip (514), a locking rod (515) and a locking seat (516), the locking cylinders (512) and the locking rotating shafts (513) are respectively arranged on two sides of the lower end of the locking seat (511), the locking rotating shafts (513) are in running fit with the locking seats (511), the output ends of the locking cylinders (512) are hinged to the locking rotating shafts (513), connecting blocks (517) are arranged on the locking rotating shafts (513), the locking seats (516) are arranged at the upper ends of the locking seats (511), and the middle parts of the locking rods (515) are hinged to the locking seats (516), the lower extreme of articulated strip (514) with connecting block (517) are articulated mutually, the upper end of articulated strip (514) is passed locking seat (511) and with the rear end of locking lever (515) is connected, the one side setting of conducting module (50) down is in locking lever (515) front end with between hasp seat (516).

3. A PCB testing apparatus according to claim 2, wherein: the downward-pressing testing module (3) comprises a lifting component (31), a quick-changing component (32) and an upper conduction module (33) which are sequentially arranged from top to bottom, the quick-changing component (32) comprises a supporting plate (321), clamping blocks (322) and two bearing long plates (323), the supporting plate (321) is connected with the action end of the lifting component (31), the two bearing long plates (323) are symmetrically arranged at two sides of the lower end of the supporting plate (321), the inner sides of the two bearing long plates (323) are both provided with bearing chutes (324), the front end of the supporting plate (321) is provided with a clamping groove (325), the clamping blocks (322) are arranged at one side of the clamping groove (325) in a floating manner, the downward-conduction module (50) is embedded in the bearing chutes (324) in a sliding manner, and the downward-conduction module (50) is provided with a limit column (326), the limiting column (326) is matched with the clamping groove (325) and matched with the clamping block (322).

4. The PCB testing apparatus of claim 1, wherein: liftable transfer chain (4) are including setting up first curb plate (41) and second curb plate (42) of installation frame (2) both sides, the both ends of first curb plate (41) are provided with first cylinder (43) and second cylinder (44) respectively, the both ends of second curb plate (42) are provided with third cylinder (45) and fourth cylinder (46) respectively, first cylinder (43) with the lower extreme of third cylinder (45) is connected with first transfer chain (47), second cylinder (44) with the lower extreme of fourth cylinder (46) is connected with second transfer chain (48), first transfer chain (47) with second transfer chain (48) cooperate and parallel arrangement, first cylinder (43) second cylinder (44) third cylinder (45) with fourth cylinder (46) synchronization action.

5. The PCB testing apparatus of claim 1, wherein: the front end both sides of mounting plate (1) are provided with support column (6), the front end both sides of installation frame (2) be provided with support column (6) matched with stress column (7), the front end both sides of installation frame (2) are articulated to have lockplate (8), two lockplate (8) are connected through synchronizing bar (9), the lower extreme of lockplate (8) is provided with fixed barb (10), fixed barb (10) with set up cooperate in fixed recess (11) of support column (6) front end.

6. The PCB testing apparatus of claim 1, wherein: the rear end of mounting plate (1) is provided with articulated base (12), the rear end both sides of installation frame (2) with the middle part of articulated base (12) is articulated mutually, the upper end both sides of articulated base (12) are provided with supplementary gas pole (13), the both ends of supplementary gas pole (13) respectively with articulated base (12) reach installation frame (2) are articulated mutually, the lower extreme both sides of articulated base (12) are provided with air spring (14), the both ends of air spring (14) respectively with articulated base (12) reach installation frame (2) are articulated mutually.

7. The PCB testing device of claim 4, wherein: first curb plate (41) with all be provided with transverse guide (49) on second curb plate (42), first cylinder (43), second cylinder (44), third cylinder (45) with fourth cylinder (46) all through fixed plate (410) with transverse guide (49) sliding fit, one side screw-thread fit of fixed plate (410) has hand screw (411), the one end of hand screw (411) is run through fixed plate (410) and be provided with locking piece (412), the inboard upper and lower extreme of locking piece (412) all is provided with pothook (413), two pothook (413) respectively with set up draw-in groove (414) at transverse guide (49) upper and lower both ends cooperate.

8. A PCB testing apparatus according to claim 3, wherein: bear and rotate on the long board (323) and be provided with a plurality of auxiliary pulley (327), auxiliary pulley (327) are inlayed and are established bear the inboard of long board (323), the upper end of auxiliary pulley (327) is located bear in spout (324), the upper end of backup pad (321) is provided with left stopper (328) and right stopper (329), screens piece (322) are located between left stopper (328) and the right stopper (329), the right-hand member of screens piece (322) be connected with right stopper (329) sliding fit's slide shaft (330), the cover is equipped with floating spring on slide shaft (330), the left end of screens piece (322) passes left stopper (328) and is in the top of screens groove (325).

9. A PCB testing apparatus according to claim 2, wherein: the one end of locking pivot (513) is provided with response piece (518), locking seat (511) are close to the one end of response piece (518) be provided with response piece (518) matched with sensor (519), still be provided with U type piece (520) on locking pivot (513), the open end of U type piece (520) with locking pivot (513) are connected, the closed end of U type piece (520) is provided with turn-up section (521), turn-up section (521) with the output of locking cylinder (512) is articulated mutually.

10. The PCB testing device of claim 5, wherein: two be provided with square board (15) between support column (6), the gomphosis groove has all been seted up to the upper end of square board (15) with the inboard of support column (6), the activity is provided with ya keli guard plate (16) on the gomphosis groove.