CN216531982U - Full-automatic burning equipment for printed circuit board - Google Patents

Abstract

The utility model discloses a full-automatic burning device of a printed circuit board, which comprises a box body, an upper needle plate, a lower needle carrier plate assembly, a motion conversion assembly and the like, wherein the lower needle carrier plate assembly comprises a carrier plate and a driving mechanism; the motion conversion assembly comprises a supporting plate, a sliding plate, a driving device and a bearing group, wherein the sliding plate is arranged on a side plate of the box body and is connected with the driving device to form a structure capable of sliding back and forth; the side plates are provided with vertical bearing grooves, the sliding plate is provided with inclined bearing slideways, and the bearing groups are embedded in the bearing grooves and the bearing slideways simultaneously. According to the utility model, the horizontal driving force is converted into vertical movement through the sliding plate to control the movement direction of the upper die, so that the integral height of equipment caused by the installation space required by the driving device can be reduced, and the stability of the pressing process can be ensured; the quick change structure is adopted to ensure that the module replacement operation process is simple, quick and efficient.

Description

Full-automatic burning equipment for printed circuit board

Technical Field

The utility model relates to the technical field of manufacturing equipment of electronic circuit boards (PCBs), in particular to burning equipment for a PCB.

Background

With the rapid development of the electronic circuit board industry, higher requirements are placed on the manufacture of the circuit board, and after the hardware part of the circuit board is manufactured, onboard programs are loaded into the circuit board through burning. At present, the circuit board is developed towards the direction of integration, and the program burning mode is correspondingly changed. At present, ICs are all burned online or in batches, and through RS232, ISP, JTAG, SWD, USB, parallel port and the like, the main burning types are as follows: MCU/ARM burning of a single chip microcomputer, FPGA burning, CPLD burning, DSP burning, EPROM burning, USB burning and the like. The method relates to the technical field of chip burning in the PCB and is used for writing programs into the control chip on the PCB after the chip mounting processing is finished. However, the conventional burning process has many disadvantages, such as: 1. the burning jig has a single burning product and a low success rate of burning. 2. The manual recording process is more, the operation is complex, the labor is wasted, the recording success rate is low, the production cost is high, and the efficiency is low. 3. The structure is various, and the device is only suitable for small-batch burning and is difficult to realize automatic large-batch burning.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing the full-automatic burning equipment for the printed circuit board, which has reasonable structural design, can realize automatic production, can quickly replace an upper die and a lower die so as to realize burning work of circuit boards with different specifications, can save production cost and improve production efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a full-automatic burning machine that burns of printed circuit board, includes box, control system and last faller, burns the printed circuit board through last faller of control system control, its characterized in that: the upper needle plate is arranged on the motion conversion assembly in a quick-change structure, is suspended above the carrier plate and forms a structure capable of being quickly drawn out and replaced; the motion conversion assembly comprises a supporting plate, a sliding plate, a driving device and a bearing group, the bearing group is arranged on the supporting plate and extends outwards, and the sliding plate is arranged on a side plate of the box body and is connected with the driving device to form a structure capable of sliding back and forth; a vertical bearing groove is formed in the side plate, an inclined bearing slideway with a high front part and a low rear part is formed in the sliding plate, and a bearing group is embedded in the bearing groove and the bearing slideway simultaneously so as to realize the installation of the supporting plate; the bearing group moves along the bearing slideway and the bearing groove by sliding the sliding plate back and forth, so that the supporting plate carries the upper needle plate to perform lifting movement.

Furthermore, at least two groups of bearing sets are respectively arranged on two sides of the supporting plate; the bearing group comprises an outer bearing, an inner bearing and a bearing seat, the outer bearing and the inner bearing are coaxially and laterally arranged on the outer side of the bearing seat, and the bearing seat is arranged on the outer edge of the supporting plate; the outer bearing is embedded in a bearing groove of the side plate, the inner bearing is embedded in a bearing slideway of the sliding plate, and the sliding plate drives the inner bearing to slide along the bearing slideway, so that the outer bearing slides up and down along the bearing groove.

Furthermore, a sliding chute used for the sliding plate to slide back and forth is arranged in the side plate, an upper guide rail groove and a lower guide rail groove are arranged in the sliding chute, a conversion sliding rail is arranged in the guide rail grooves, and the sliding plate is arranged on the conversion sliding rail; the driving device is a conversion air cylinder which is connected with the sliding plates on two sides through a connecting plate, so that the left sliding plate and the right sliding plate form a structure capable of synchronously sliding back and forth; the sliding plate is provided with a front bearing slide way and a rear bearing slide way which are the same, the upper end and the lower end of each bearing slide way are respectively provided with a limiting groove capable of containing an inner bearing, the inner bearing stops in the limiting groove at the upper end to realize auxiliary positioning after the supporting plate is lifted, and the inner bearing stops in the limiting groove at the lower end to realize auxiliary positioning after the supporting plate is lowered. The working mode is that the conversion air cylinder horizontally pushes the connecting plate to drive the sliding plates on the left side and the right side to slide back and forth, and the stability in the sliding process is ensured through the linear conversion sliding rail. Because the inner bearing of the bearing group can only move in the chute (bearing slideway) of the sliding plate, and the outer bearing can only move up and down in the bearing groove of the side plate, the horizontal thrust of the conversion cylinder can generate component force in the up-and-down direction because of the chute when the sliding plate is pushed to move back and forth, so as to drive the supporting plate to move up and down, and the fixture has the advantage of reducing the up-and-down space required by fixture installation.

Furthermore, the box body comprises a lower box body and an upper box body, the lower needle support plate assembly is arranged in the upper box body, the rear part of the upper box body is connected with the lower box body through a hinge to form a structure which can be turned upwards and opened, and the side plates for installing the sliding plates are the left side plate and the right side plate of the upper box body; the electromagnetic valve is arranged on the bottom plate of the lower box body, and the rear part of the lower box body is provided with a switching plate assembly for butting the networking of the automatic machine; the two outer sides of the front parts of the upper box body and the lower box body are respectively provided with a lock catch, and the combined upper box body and the lower box body are locked through the lock catches; handles are arranged on the left outer side wall and the right outer side wall of the lower box body and are used for moving the whole equipment.

Furthermore, the upper needle plate is positioned in an upper pressure plate assembly which can be pulled out from the supporting plate for quick replacement, the upper pressure plate assembly also comprises an upper pressure plate, an upper top plate and a quick-replacement support piece, the upper needle plate is arranged on the bottom surface of the upper pressure plate, and the upper pressure plate is arranged on the bottom surface of the upper top plate; the two quick-change supporting pieces are respectively arranged on the bottom surfaces of two sides of the supporting plate to respectively form a left quick-change supporting groove and a right quick-change supporting groove, and the left side and the right side of the upper plate are respectively arranged in the two quick-change supporting grooves in a sliding fit mode; fixing lugs extending towards the middle are respectively arranged on the inner sides of the left side and the right side of the supporting plate, the fixing lugs are suspended above the upper ceiling plate, and the quick-change plunger pins are screwed into the fixing lugs to lock the upper ceiling plate after being installed; and the front part and the rear part of the upper ceiling plate are respectively provided with a reinforcing rib to strengthen the structure of the upper pressure plate assembly. When the product is replaced for each time, the plunger pin is only required to be unscrewed, the quick-change module (the upper pressure plate assembly) is taken out, a new quick-change module is put in, and the plunger pin is locked to complete the operation, so that the process of replacing the module can be greatly simplified, the waiting time is shortened, the production efficiency is improved, and the production cost is reduced.

Furthermore, the lower needle carrier plate assembly also comprises a lower needle plate, the lower needle plate is arranged on a support plate and is positioned below the carrier plate to form a structure which is opposite to the upper needle plate up and down, so that double-sided burning can be realized, and the burning device can be used for not only a printed circuit board on the burning port but also a printed circuit board below the burning port; the driving mechanism of the needle-feeding carrier plate assembly comprises a carrier plate cylinder, and the carrier plate cylinder is arranged on the bottom surface of the supporting plate; the carrier plate cylinder is connected with a carrier plate frame through a connecting arm, the carrier plate is arranged on the carrier plate frame through a plurality of carrier plate guide shafts, a carrier plate spring is arranged on the carrier plate frame, and the carrier plate is supported up through the carrier plate spring to be separated from the lower needle plate so as to prevent the carrier plate from touching the lower needle plate when the carrier plate goes in and out; the left side and the right side of the supporting plate are respectively provided with a support plate guide rail, a support plate frame is arranged on the support plate guide rails, and the support plate frame is driven by a support plate cylinder to slide back and forth; a buffer is respectively arranged on the supporting plate near the tail end of the guide rail of the carrier plate. The carrier plate cylinder controls the carrier plate frame to carry the carrier plate in and out, and the printed circuit board is clamped by the manipulator to be placed on the carrier plate or taken out of the carrier plate; the lower needle plate is accurately aligned through the carrier plate guide shaft and the copper sleeve, and then the burning test can be started. Therefore, the loading and unloading of the carrier plate and the taking and placing of the carrier plate are not required to be manually operated, an operator can remotely operate the carrier plate outside a test space to complete the test, and the phenomenon that the hand directly contacts with a product to generate static electricity and stain and influence the test result is avoided. The damage of the test environment to the human body can be prevented, and the personal safety is protected.

Furthermore, a support plate guide column used for guiding the printed circuit board to be aligned and an alignment hole used for aligning with the upper pressing plate assembly are arranged on the support plate, an alignment column which is opposite to the alignment hole up and down is arranged on the bottom surface of the upper pressing plate, and the alignment hole is inserted into the alignment hole through the alignment column to realize alignment with the support plate in the pressing process of the upper pressing plate assembly.

Furthermore, the left side and the right side in the lower box body are respectively provided with a set of opening and closing driving mechanism made of an air cylinder, the opening and closing driving mechanism is connected with the bottom surface of the supporting plate to form a tipping bucket type opening and closing structure, the upper box body is pushed to rotate upwards through the opening and closing driving mechanism to realize automatic opening and closing.

Furthermore, a safety gate valve is arranged in the lower box body close to the front end, and the safety gate valve extends upwards to the bottom face of the front end close to the supporting plate to prevent the upper die from falling down accidentally and injuring people.

Furthermore, a counting device for recording the number of tests is arranged on the front surface of the lower box body, so that an LED indicating lamp and an intelligent voice prompt can be realized in the burning process and the result; the main switch of the whole equipment is arranged on the front surface of the upper box body.

According to the utility model, the horizontal driving force is converted into vertical movement through the sliding plate to control the movement direction of the upper die, so that the integral height of the equipment caused by the installation space required by the driving device can be reduced, and the stable pressing process can be ensured; the carrier plate and the needle plate are positioned through the guide shaft and the copper sleeve when pressed downwards, the clearance tolerance can be controlled to be +/-0.05, and the stable floating pressing structure of the needle plate is favorable for improving the precision and cannot be blocked; in addition, the quick-change structure adopted by the equipment can greatly save the cost, each time the product is iterated or replaced, only the upper die and the lower die need to be replaced through the quick-change structure, the operation process is simple and quick, and the whole operation is completed within five minutes; compare manual fixture operation, can reduce the manpower expenditure, the liberation manpower, efficiency is higher moreover.

Drawings

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is an overall view of another aspect of the present invention;

FIG. 3 is an exploded view of the upper and lower cases of the present invention;

FIG. 4 is a first internal structural view of the present invention;

FIG. 5 is a second internal structural view of the present invention;

FIG. 6 is a third internal structural view of the present invention;

FIG. 7 is a structural diagram of the lower needle carrier plate assembly of the present invention.

In the figure, 1 is a lower box body, 11 is a handle, 12 is an adapter plate component, 13 is a lock catch, 14 is a bottom plate, 15 is an opening and closing driving mechanism, 16 is an electromagnetic valve, 2 is an upper box body, 21 is a side plate, 22 is a sliding groove, 23 is a guide rail groove, 24 is a bearing groove, 3 is a lower needle carrier plate component, 30 is a carrier plate frame, 31 is a carrier plate cylinder, 310 is a connecting arm, 32 is a supporting plate, 33 is a buffer, 34 is a lower needle plate, 35 is a carrier plate guide rail, 36 is a carrier plate, 37 is a carrier plate guide column, 38 is a carrier plate guide shaft, 39 is a carrier plate spring, 4 is an upper pressure plate component, 41 is an upper needle plate, 42 is an upper pressure plate, 43 is an upper top plate, 44 is a quick-change support, 45 is a quick-change plunger pin, 46 is a reinforcing rib, 47 is a quick-change bracket, 48 is an alignment column, 5 is a motion conversion component, 51 is a supporting plate, 52 is a fixing lug, 53 is a sliding plate, 531 is a bearing slide way, 532 is a limiting groove, 54 is a conversion cylinder, 55 is a connecting plate, 56 is a conversion sliding rail, 571 is an outer bearing, 572 is an inner bearing, 573 is a bearing seat, 6 is a main switch, 7 is a hinge, 8 is a safety gate valve, and 9 is a counting device.

Detailed Description

In this embodiment, referring to fig. 1 to 7, the full-automatic burning device for the printed circuit board includes a box, a control system and an upper needle plate 41, and the control system controls the upper needle plate 41 to burn the printed circuit board; the device also comprises a lower needle carrier plate component 3 and a motion conversion component 5, wherein the lower needle carrier plate component 3 comprises a carrier plate 36 for carrying a printed circuit board and a driving mechanism for driving the carrier plate 36 to enter and exit the box body, and an upper needle plate 41 is arranged on the motion conversion component 5 by adopting a quick change structure and suspended above the carrier plate 36 and forms a structure capable of being quickly drawn out and replaced; the motion conversion assembly comprises a supporting plate 51, a sliding plate 53, a driving device and a bearing group, wherein the bearing group is arranged on the supporting plate 51 and extends outwards, and the sliding plate 53 is arranged on a side plate 21 of the box body and is connected with the driving device to form a structure capable of sliding back and forth; a vertical bearing groove 24 is arranged in the side plate 21, an inclined bearing slideway 531 (inclined groove) with high front and low back is arranged in the sliding plate 53, and a bearing group is embedded in the bearing groove 24 and the bearing slideway 531 at the same time so as to realize the installation of the supporting plate 51; the bearing set moves along the bearing slide 531 and the bearing groove 24 by sliding the slide plate 53 back and forth, so that the carrier plate 51 carries the upper needle plate 41 to perform a lifting motion.

Referring to fig. 5 and 6, two sets of bearing sets are respectively mounted on two sides of the supporting plate 51; the bearing set comprises an outer bearing 571, an inner bearing 572 and a bearing seat 573, wherein the outer bearing 571 and the inner bearing 572 are coaxially arranged on the outer side of the bearing seat 573 in a side-standing manner, and the bearing seat 573 is arranged on the outer edge of the supporting plate 51; the outer bearing 571 is fitted into the bearing groove 24 of the side plate 21, the inner bearing 572 is fitted into the bearing slide groove 531 of the slide plate 53, and the inner bearing 572 is driven by the slide plate 53 to slide along the bearing slide groove 531, so that the outer bearing 571 slides up and down along the bearing groove 24.

A sliding groove 22 for the sliding plate 53 to slide back and forth is arranged in the side plate 21, an upper guide rail groove 23 and a lower guide rail groove 23 are arranged in the sliding groove 22, a conversion sliding rail 56 is arranged in the guide rail grooves 23, and the sliding plate 53 is arranged on the conversion sliding rail 56; the driving device is a conversion air cylinder 54, the conversion air cylinder 54 is connected with the sliding plates 53 at two sides through a connecting plate 55, so that the left sliding plate 53 and the right sliding plate 53 form a structure capable of synchronously sliding back and forth; the sliding plate 53 is provided with a front bearing slideway 531 and a rear bearing slideway 531, the upper end and the lower end of the bearing slideway 531 are respectively provided with a limiting groove 532 capable of accommodating the inner bearing 572, the inner bearing 572 stays in the limiting groove 532 at the upper end to realize the auxiliary positioning after the supporting plate 51 is lifted, and the inner bearing 572 stays in the limiting groove 532 at the lower end to realize the auxiliary positioning after the supporting plate 51 is lowered. The working mode is that the conversion air cylinder 54 horizontally pushes the connecting plate 55 to drive the sliding plates 53 on the left and right sides to slide back and forth, and the stability in the sliding process is ensured through the linear conversion sliding rail 56. Since the inner bearing 572 of the bearing set can only move in the inclined groove (bearing slideway 531) of the sliding plate 53 and the outer bearing 571 can only move up and down in the bearing groove 24 of the side plate 21, when the horizontal thrust of the conversion cylinder 54 pushes the sliding plate 53 to move forward and backward, the inclined groove can generate a component force in the up-and-down direction, so as to drive the supporting plate 51 to move up and down, which has the advantage of reducing the up-and-down space required by the installation of the jig.

Referring to fig. 1-4, the box body comprises a lower box body 1 and an upper box body 2, a lower needle carrier plate assembly 3 is installed in the upper box body 2, the rear part of the upper box body 2 is connected with the lower box body 1 through a hinge 7 to form a structure capable of being turned upwards, and side plates 21 for installing a sliding plate 53 are left and right side plates of the upper box body 2; the electromagnetic valve 16 is arranged on the bottom plate 14 of the lower box body 1 and used for controlling various actions, and the adapter plate component 12 used for butting the networking of the automatic machine is arranged at the rear part of the lower box body 1; the two outer sides of the front parts of the upper box body 2 and the lower box body 1 are respectively provided with a lock catch 13, and the combined upper box body 2 and the lower box body 1 are locked through the lock catches 13; handles 11 are provided on the left and right outer side walls of the lower case 1 for carrying the entire apparatus.

Referring to fig. 4-6, the upper needle plate 41 is located in an upper press plate assembly 4 which can be drawn out from the supporting plate 51 for quick replacement, the upper press plate assembly 4 further comprises an upper press plate 42, an upper top plate 43 and a quick-replacement holder 44, the upper needle plate 41 is mounted on the bottom surface of the upper press plate 42, and the upper press plate 42 is mounted on the bottom surface of the upper top plate 43; the two quick-change supporting pieces 44 are respectively arranged on the bottom surfaces of two sides of the supporting plate 51 to respectively form a left quick-change supporting groove 47 and a right quick-change supporting groove 47, and the left side and the right side of the upper ceiling 43 are respectively arranged in the two quick-change supporting grooves 47 in a sliding fit manner; fixing lugs 52 extending out towards the middle are respectively arranged on the inner sides of the left side and the right side of the supporting plate 51, the fixing lugs 52 are suspended above the upper ceiling plate 43, and the quick-change plunger pins 45 are screwed into the fixing lugs 52 to lock the upper ceiling plate 43 after being installed; a reinforcing rib 46 is provided at each of the front and rear portions of the upper ceiling 43 to reinforce the structure of the upper platen assembly 4. When the product test is changed at every turn, only need unscrew plunger pin 45, take out quick change module (top board subassembly 4), put into new quick change module, lock plunger pin 45 again and accomplish the operation promptly, can simplify the flow of changing the module greatly, reduce latency, improve production efficiency, reduction in production cost.

Referring to fig. 4, 5 and 7, the lower needle carrier assembly 3 further includes a lower needle plate 34, the lower needle plate 34 is mounted on a support plate 32 and located below the carrier plate 36 to form a structure opposite to the upper needle plate 41 in the up-and-down direction, so that double-sided burning can be realized, and the burning ports can be directed to both the printed circuit boards above the burning ports and the printed circuit boards below the burning ports; the driving mechanism of the lower needle carrier plate component 3 comprises a carrier plate cylinder 31, and the carrier plate cylinder 31 is arranged on the bottom surface of a supporting plate 32; the carrier plate cylinder 31 is connected with a carrier plate frame 30 through a connecting arm 310, the carrier plate 36 is mounted on the carrier plate frame 30 through a plurality of carrier plate guide shafts 38, a carrier plate spring 39 is arranged on the carrier plate frame 30, and the carrier plate 36 is supported by the carrier plate spring 39 to be separated from the lower needle plate 31 so as to prevent the carrier plate 36 from touching the lower needle plate 31 when entering and exiting; a support plate guide rail 35 is respectively arranged on the left side and the right side of the support plate 32, the support plate frame 30 is erected on the support plate guide rail 35, and the support plate frame 30 is driven by the support plate cylinder 31 to slide back and forth; a buffer 33 is provided on each support plate 32 near the rear end of the carrier rail 35. The carrier plate cylinder 31 controls the carrier plate frame 30 to carry the carrier plate 36 in and out, and the printed circuit board is clamped by the manipulator to be placed on the carrier plate 36 or taken out from the carrier plate 36; the lower needle board 31 is accurately aligned through the carrier board guide shaft 38 and the copper sleeve, and then the burning test can be started. Therefore, the loading and unloading of the carrier plate 36 are not required to be manually operated, an operator can remotely operate the test space to complete the test, and the phenomenon that the test result is influenced by static electricity and dirt generated when the hand directly contacts the product is avoided. The damage of the test environment to the human body can be prevented, and the personal safety is protected.

The carrier 36 is provided with carrier guide posts 37 for guiding the printed circuit board to align and alignment holes for aligning with the upper platen assembly 4, the bottom surface of the upper platen 42 is provided with alignment posts 48 vertically opposite to the alignment holes, and the alignment posts 48 are inserted into the alignment holes to align with the carrier 36 during the pressing process of the upper platen assembly 4.

The left side and the right side in the lower box body 1 are respectively provided with a set of opening and closing driving mechanism 15 made of air cylinders, the opening and closing driving mechanism 15 is connected with the bottom surface of the supporting plate 32 to form a tipping bucket type opening and closing structure, and the opening and closing driving mechanism 15 pushes the upper box body 2 to rotate upwards to realize automatic opening and closing.

A safety gate valve 8 is arranged at the position close to the front end in the lower box body 1, the safety gate valve 8 extends upwards to the bottom surface of the front end close to the supporting plate 32, and the upper die is prevented from falling down accidentally and injuring people.

A counting device 9 for recording the number of tests is arranged on the front surface of the lower box body 1, so that an LED indicating lamp and an intelligent voice prompt can be realized in the burning process and the result; the main switch 6 of the whole equipment is arranged on the front surface of the upper box body 2.

The equipment is arranged on one station of the automatic production line, and all the stations are reset to set positions before testing. When the test is started, the support plate cylinder 31 is pushed out to a fixed position, the test board is clamped and placed on the support plate 36 through the automatic mechanical arm, then the support plate cylinder 31 is retracted to the position, the upper die detection in-place signal starts to be pressed downwards, after the upper die detection in-place signal is pressed downwards to the position, the burning is started, the burning is completed, the upper die is lifted and reset, the support plate 36 detects the signal, the support plate 36 is extended out of the upper box body 2 through the support plate cylinder 31, and the test board is taken away through the mechanical arm and flows into the next work station for testing.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Claims (10)

1. The utility model provides a full-automatic burning machine that burns of printed circuit board, includes box, control system and last faller, burns the printed circuit board through last faller of control system control, its characterized in that: the upper needle plate is arranged on the motion conversion assembly in a quick-change structure, is suspended above the carrier plate and forms a structure capable of being quickly drawn out and replaced; the motion conversion assembly comprises a supporting plate, a sliding plate, a driving device and a bearing group, the bearing group is arranged on the supporting plate and extends outwards, and the sliding plate is arranged on a side plate of the box body and is connected with the driving device to form a structure capable of sliding back and forth; a vertical bearing groove is formed in the side plate, an inclined bearing slideway with a high front part and a low rear part is formed in the sliding plate, and a bearing group is embedded in the bearing groove and the bearing slideway simultaneously so as to realize the installation of the supporting plate; the bearing group moves along the bearing slideway and the bearing groove by sliding the sliding plate back and forth, so that the supporting plate carries the upper needle plate to perform lifting movement.

2. The full-automatic burning device for the printed circuit board as claimed in claim 1, wherein: at least two groups of bearing sets are respectively arranged on two sides of the supporting plate; the bearing group comprises an outer bearing, an inner bearing and a bearing seat, the outer bearing and the inner bearing are coaxially and laterally arranged on the outer side of the bearing seat, and the bearing seat is arranged on the outer edge of the supporting plate; the outer bearing is embedded in a bearing groove of the side plate, the inner bearing is embedded in a bearing slideway of the sliding plate, and the sliding plate drives the inner bearing to slide along the bearing slideway, so that the outer bearing slides up and down along the bearing groove.

3. The full-automatic burning device for the printed circuit board as claimed in claim 2, wherein: a sliding groove for the sliding plate to slide back and forth is arranged in the side plate, an upper guide rail groove and a lower guide rail groove are arranged in the sliding groove, a conversion sliding rail is arranged in the guide rail grooves, and the sliding plate is arranged on the conversion sliding rail; the driving device is a conversion air cylinder which is connected with the sliding plates on two sides through a connecting plate, so that the left sliding plate and the right sliding plate form a structure capable of synchronously sliding back and forth; the sliding plate is provided with a front bearing slide way and a rear bearing slide way which are the same, the upper end and the lower end of each bearing slide way are respectively provided with a limiting groove capable of containing an inner bearing, the inner bearing stops in the limiting groove at the upper end to realize auxiliary positioning after the supporting plate is lifted, and the inner bearing stops in the limiting groove at the lower end to realize auxiliary positioning after the supporting plate is lowered.

4. The full-automatic burning device of the printed circuit board as claimed in claim 3, wherein: the box body comprises a lower box body and an upper box body, the lower needle support plate assembly is arranged in the upper box body, the rear part of the upper box body is connected with the lower box body through a hinge to form a structure capable of being turned upwards, and side plates for installing sliding plates are left and right side plates of the upper box body; the electromagnetic valve is arranged on the bottom plate of the lower box body, and the rear part of the lower box body is provided with a switching plate assembly for butting the networking of the automatic machine; the two outer sides of the front parts of the upper box body and the lower box body are respectively provided with a lock catch, and the combined upper box body and the lower box body are locked through the lock catches; handles are arranged on the left and right outer side walls of the lower box body.

5. The full-automatic burning device of the printed circuit board as claimed in claim 4, wherein: the upper needle plate is positioned in an upper pressure plate assembly which can be pulled out from the supporting plate for quick replacement, the upper pressure plate assembly also comprises an upper pressure plate, an upper top plate and a quick-replacement support piece, the upper needle plate is arranged on the bottom surface of the upper pressure plate, and the upper pressure plate is arranged on the bottom surface of the upper top plate; the two quick-change supporting pieces are respectively arranged on the bottom surfaces of two sides of the supporting plate to respectively form a left quick-change supporting groove and a right quick-change supporting groove, and the left side and the right side of the upper plate are respectively arranged in the two quick-change supporting grooves in a sliding fit mode; fixing lugs extending towards the middle are respectively arranged on the inner sides of the left side and the right side of the supporting plate, the fixing lugs are suspended above the upper ceiling plate, and the quick-change plunger pins are screwed into the fixing lugs to lock the upper ceiling plate after being installed; and the front part and the rear part of the upper ceiling plate are respectively provided with a reinforcing rib to strengthen the structure of the upper pressure plate assembly.

6. The full-automatic burning device of the printed circuit board as claimed in claim 5, wherein: the lower needle carrier plate component also comprises a lower needle plate, and the lower needle plate is arranged on a support plate and is positioned below the carrier plate to form a structure which is opposite to the upper needle plate up and down; the driving mechanism of the needle-feeding carrier plate assembly comprises a carrier plate cylinder, and the carrier plate cylinder is arranged on the bottom surface of the supporting plate; the carrier plate cylinder is connected with a carrier plate frame through a connecting arm, the carrier plate is arranged on the carrier plate frame through a plurality of carrier plate guide shafts, a carrier plate spring is arranged on the carrier plate frame, and the carrier plate is supported through the carrier plate spring to be separated from the lower needle plate; the left side and the right side of the supporting plate are respectively provided with a support plate guide rail, a support plate frame is arranged on the support plate guide rails, and the support plate frame is driven by a support plate cylinder to slide back and forth; a buffer is respectively arranged on the supporting plate near the tail end of the guide rail of the carrier plate.

7. The full-automatic burning device of the printed circuit board as claimed in claim 6, wherein: the support plate is provided with a support plate guide column for guiding the printed circuit board to align and a registration hole for aligning with the upper pressing plate assembly, the bottom surface of the upper pressing plate is provided with a registration column which is vertically opposite to the registration hole, and the registration hole is inserted through the registration column to align with the support plate in the process of pressing down the upper pressing plate assembly.

8. The full-automatic burning device of the printed circuit board as claimed in claim 7, wherein: the left side and the right side in the lower box body are respectively provided with a set of opening and closing driving mechanism made of air cylinders, the opening and closing driving mechanisms are connected with the bottom surface of the supporting plate to form a tipping bucket type opening and closing structure, and the upper box body is pushed to rotate upwards through the opening and closing driving mechanisms to realize opening.

9. The full-automatic burning device of the printed circuit board as claimed in claim 8, wherein: a safety gate valve is arranged in the lower box body close to the front end, and extends upwards to the bottom surface of the front end close to the supporting plate.

10. The full-automatic burning device of the printed circuit board as claimed in claim 4, wherein: the front surface of the lower box body is provided with a counting device for recording the number of tests, and the main switch of the whole device is arranged on the front surface of the upper box body.

Images