Forming bottom plate for laser melting forming equipment and automatic circulating mechanism of forming bottom plate

Abstract

The utility model discloses a forming bottom plate for laser melting forming equipment and an automatic circulating mechanism of the forming bottom plate, the forming bottom plate comprises a forming mother plate and a plurality of forming daughter plates which are detachably fixed on the forming mother plate, and the upper side surfaces of the forming daughter plates are spliced to form a forming surface; the forming bottom plate automatic circulation mechanism comprises an ejection table used for containing forming bottom plates and a sub-plate conveying device used for conveying forming sub-plates in a reciprocating mode. The daughter board carrying device is used for carrying the formed daughter board ejected out of the formed mother board to a taking and feeding station on the daughter board conveying device or carrying the empty formed daughter board on the empty daughter board feeding station of the daughter board conveying device to the formed mother board on the ejection table, and a bottom plate positioning device on the ejection table can fix the formed mother board. According to the 3C product forming device, rapid forming and automatic taking of 3C products on laser melting forming equipment are achieved, and the forming bottom plate is efficiently and circularly used.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing, in particular to a forming bottom plate for a laser melting forming device and its automatic circulation mechanism. Background Technique

[0002] On the huge forming bottom plate of large and extra-large laser melting forming devices, multiple small parts can be formed, namely 3C-SLM. The 3C-SLM device can form dozens or hundreds of small parts at a time, that is, multiple parts on one plate. In this regard, there are important problems of removing the large bottom plate welded with numerous formed parts from the forming chamber (plate out) and cutting and taking out the formed parts (part taking).

[0003] Especially, it is currently very difficult to safely and efficiently take out the formed parts. The traditional method is to place the large forming bottom plate full of formed parts on a large wire cutting machine for positioning, and then cut down the numerous formed parts on the large forming bottom plate at one time. This part-taking method not only has low efficiency, but also the grinding of the forming bottom plate (grinding off the residual marks left by wire cutting) needs to be carried out on a large machine tool, with a large workload, resulting in a very low turnover rate of the large forming bottom plate, and large workloads for transportation and clamping, leading to difficult part-taking, high part-taking costs, and prone to failures during the part-taking process and other problems. Content of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a forming bottom plate for a laser melting forming device and its automatic circulation mechanism. By using the forming bottom plate for a laser melting forming device and its automatic circulation mechanism, rapid part-taking on the forming bottom plate can be realized, part-taking is convenient, the requirements for part-taking equipment are low, and efficient circulation of the forming bottom plate can be achieved.

[0005] The technical solution adopted by the utility model to solve its technical problems: A forming bottom plate for a laser melting forming device includes a forming mother plate and forming sub-plates. The several forming sub-plates can be detachably and fixedly installed on the upper side surface of the forming mother plate, and the upper side surfaces of the several forming sub-plates are spliced to form a forming surface for forming formed parts.

[0006] As a further improvement of the utility model, several positioning jacks are uniformly distributed in an array on the forming mother plate, and positioning columns are provided on the lower side of the forming sub-plates. The positioning columns can be inserted into the positioning jacks on the forming mother plate, the lower side surface of the forming sub-plate is flat against the upper side surface of the forming mother plate, the side walls of adjacent forming sub-plates are closely attached, and the upper side surfaces of each forming sub-plate are aligned and joined to form a forming surface for forming several formed parts.

[0007] As a further improvement of the utility model, the forming sub-plate is a square block structure, the positioning column at its lower end is a columnar structure with a non-circular cross-section, and the positioning jack is a non-circular through hole matching its cross-section.

[0008] As a further improvement of the present utility model, at least one linear positioning chute is formed on the lower side of the forming master plate. The linear positioning chute can be sleeved on the linear guiding slide rail on the upper side of the forming cylinder piston of the laser melting forming equipment in a straight-line sliding manner. At least two positioning receiving grooves are further provided on the lower side of the forming master plate. The at least two positioning receiving grooves are respectively located at both ends of the lower side of the forming master plate along the extending direction of the linear positioning chute. A clamping stop pin on the forming cylinder piston of the laser melting forming equipment can be received in the positioning receiving groove, and the clamping stop pin can clamp the vertical side wall perpendicular to the extending direction of the positioning receiving groove and the linear positioning chute.

[0009] An automatic circulating mechanism for a forming bottom plate includes a top-out table, a sub-plate conveying device, a sub-plate handling device, and a control system. A bottom plate positioning device, ejector rods, and an ejector rod driving device are provided on the top-out table. The bottom plate positioning device can stop and position the forming master plate of the forming bottom plate. A plurality of ejector rods are installed on the top-out table in a liftable manner. Each ejector rod can be inserted into a positioning jack on the forming master plate in a one-to-one correspondence, and the positioning posts on the lower side of the forming sub-plate can be completely ejected from the positioning jacks. The ejector rod driving device drives the ejector rods to move up and down. The sub-plate handling device can individually or integrally handle the sub-plates lifted by the ejector rods to the picking and loading station of the sub-plate conveying device, and can individually or integrally handle the empty forming sub-plates at the empty sub-plate loading station of the sub-plate conveying device to the forming master plate on the top-out table. The sub-plate conveying device can convey the forming sub-plates and the formed parts thereon at the picking and loading station to the wire cutting and picking station, and can reversely convey the empty forming sub-plates after picking to the empty sub-plate loading station. The control system controls the start and stop of the ejector rod driving device, the sub-plate conveying device, and the sub-plate handling device.

[0010] As a further improvement of the present utility model, the sub-plate conveying device includes a sub-part loading conveyor belt and a sub-part unloading conveyor belt. The conveying starting end of the sub-part loading conveyor belt is the picking and loading station, and the conveying ending end of the sub-part loading conveyor belt is the wire cutting and picking station. The conveying starting end of the sub-part unloading conveyor belt is the wire cutting and picking station, and the conveying ending end of the sub-part unloading conveyor belt is the empty sub-plate loading station.

[0011] As a further improvement of the present utility model, an AGV trolley is further provided. The ejecting table is fixedly installed on the AGV trolley. The control system can control the AGV trolley to move to one side of the starting end of the sub-component feeding conveyor belt, or to one side of the ending end of the sub-component discharging conveyor belt, or to the loading side of the forming base plate of the laser melting forming device, or to the discharging side of the forming base plate of the laser melting forming device. Horizontal extending sub-component discharging connection plates and sub-component feeding connection plates are respectively provided at the starting end of the feeding conveyor belt and one side of the ending end of the sub-component discharging conveyor belt. One ends of the sub-component discharging connection plate and the sub-component feeding connection plate are respectively aligned and connected with the starting end of the sub-component feeding conveyor belt and the ending end of the sub-component discharging conveyor belt. The other ends of the sub-component discharging connection plate and the sub-component feeding connection plate can respectively be aligned and connected with the upper side surface of the forming mother plate on the ejecting table located on one side thereof. The sub-component handling device is a first pusher device and a second pusher device respectively located at the starting end of the sub-component feeding conveyor belt and the ending end of the sub-component discharging conveyor belt. The first pusher device and the second pusher device both include a push plate and a push plate driving device. The push plate can reciprocally translate a set distance in the horizontal direction, and the push plate driving device drives the push plate to move. The push plate of the first pusher device can horizontally push the forming sub-component lifted by the ejector rod on the ejecting table onto the surface of the starting end of the sub-component feeding conveyor belt as a whole. The push plate of the second pusher device can horizontally push the forming sub-component on the surface of the ending end of the sub-component discharging conveyor belt onto the surface of the forming mother plate on the ejecting table as a whole. The control system controls the driving devices of the first pusher device and the second pusher device and the operation of the AGV trolley.

[0012] As a further improvement of the present utility model, a plurality of conveyor rollers and roller driving devices are further provided on the ejecting table. The forming mother plate of the forming base plate can be supported on the conveyor rollers, and the whole forming base plate is conveyed forward by the rolling of the conveyor rollers. The roller driving device drives the conveyor rollers to rotate forward and backward to achieve forward and backward conveying. Flanges are respectively provided on both axial sides of the conveyor rollers on the ejecting table. The flanges stop at both sides of the forming base plate to realize the guiding of the forming base plate during forward conveying on the conveyor rollers. One end of the ejecting table along the conveying direction of the conveyor rollers is further provided with a blocking member capable of opening and closing actions. The blocking member in the closed state can prevent the forming mother plate of the forming base plate at the conveying ending end of the conveyor rollers from moving forward continuously. The blocking member in the open state disengages from the blocking position of the forming mother plate of the forming base plate at the conveying ending end of the conveyor rollers, so that the forming base plate can continue to be conveyed forward.

[0013] As a further improvement of the present utility model, a horizontally extending overlapping section is formed at the other end of the ejecting table along the conveying direction of the conveyor rollers. The overlapping section can extend into the frame of the laser melting forming device, so that the conveyor rollers thereon are horizontally aligned and connected with the piston of the forming cylinder of the laser melting forming device.

[0014] As a further improvement of the present utility model, a first sensing device is further provided on the ejection table. The first sensing device can sense whether there is a formed bottom plate on the ejection table, and whether there are empty formed sub-pieces or formed sub-pieces with materials on the formed bottom plate that have not been taken. Second sensing devices and third sensing devices are respectively provided at both ends of the AGV cart or the ejection table along the moving direction of the AGV. The second sensing device can sense that the ejection table reaches one side of the conveying starting end of the sub-piece feeding conveyor belt or reaches one side of the conveying end of the sub-piece discharging conveyor belt, and the third sensing device can sense that the ejection table reaches one side of the forming cylinder of the laser melting forming device. The first sensing device, the second sensing device and the third sensing device can transmit the information they sense to the control system.

[0015] The beneficial effects of the present utility model are as follows: By designing the formed bottom plate into a detachable combined structure, the formed bottom plate has a formed mother plate as the basic forming plate, which is installed on the piston of the forming cylinder, and the formed sub-plate is inserted into the corresponding position of the formed mother plate. The formed mother plate carries the formed sub-plate into the forming cylinder, and powder spreading and laser scanning forming are both carried out on the formed sub-plate. After forming, the whole formed bottom plate is sent to the ejection table of the formed bottom plate automatic circulation mechanism, and the formed sub-plate welded with the formed part is pushed up by the ejector rod to separate from the formed mother plate. The formed sub-plate welded with the formed part is transported to the sub-plate conveying device by the sub-plate handling device, and the formed sub-plate and the formed part on it are transported to the cutting and picking station by the sub-plate conveying device. The cutting and picking equipment only needs to cut and pick the formed parts on the three formed sub-plates. The formed sub-plate is small in size, and cutting and picking are convenient and fast. When grinding the traces remaining due to cutting on the formed sub-plate, the requirements for the grinding equipment are low, and the whole picking efficiency is greatly improved. The ejection table is also moved by the AGV cart to change positions, which can realize automatic feeding of empty forming plates, automatic discharging of the formed bottom plate after forming of the formed part, automatic splitting and discharging of the formed sub-plate, and automatic feeding of empty formed sub-plates. Furthermore, it realizes the full-automatic intelligent automatic circulation use of the formed bottom plate and automatic picking of the formed part, greatly improving the rapid forming and picking of 3C products on the laser melting forming device, reducing the picking difficulty, realizing the efficient circulation use of the formed bottom plate, and reducing the production cost and the labor intensity of workers. Description of the Drawings

[0016] Figure 1 is the three-dimensional exploded view of the formed bottom plate of the present utility model;

[0017] Figure 2 is the three-dimensional view of the formed bottom plate of the present utility model;

[0018] Figure 3 is the three-dimensional view of the ejection table of the present utility model;

[0019] Figure 4The three-dimensional state diagram of the ejection table of the present utility model located on both sides of the laser melting forming equipment for loading and unloading the forming bottom plate;

[0020] Figure 5 The front view state diagram of the ejection table of the present utility model located on both sides of the laser melting forming equipment for loading and unloading the forming bottom plate;

[0021] Figure 6 The top view state diagram of the ejection table of the present utility model located on both sides of the laser melting forming equipment for loading and unloading the forming bottom plate;

[0022] Figure 7 is Figure 6 the sectional view taken along the line A-A in

[0023] Figure 8 The automatic circulation schematic diagram of the forming bottom plate of the present utility model. Detailed implementation manners

[0024] Embodiment: A forming bottom plate for a laser melting forming equipment 7 includes a forming mother plate 1 and forming daughter plates 2. The plurality of forming daughter plates 2 can be detachably and fixedly installed on the upper surface of the forming mother plate 1. The upper surfaces of the plurality of forming daughter plates 2 are spliced to form a forming surface for forming a formed part 8. By designing the forming bottom plate into a split structure composed of the forming mother plate 1 and the forming daughter plates 2, when taking the part, the forming daughter plate 2 together with the formed part 8 welded thereon can be taken off from the forming mother plate 1. Since the size of the forming daughter plate 2 is small, it is convenient to carry and is convenient for positioning and precise cutting to take the part on a wire cutting equipment. When taking the part, it is not necessary to position the entire forming bottom plate on the wire cutting equipment for cutting to take the part, which reduces the difficulty of taking the part by wire cutting and is not likely to cause the wire of the wire cutting equipment to break and be damaged.

[0025] A number of positioning jacks 11 are evenly distributed in an array on the forming master plate 1. A positioning post 21 is provided on the lower side of the forming sub-plate 2. The positioning post 21 can be inserted into the positioning jack 11 on the forming master plate 1. The lower side surface of the forming sub-plate 2 is flatly attached to the upper side surface of the forming master plate 1. The side walls of adjacent forming sub-plates 2 are closely attached. The upper side surfaces of the respective forming sub-plates 2 are aligned and joined to form a forming surface for forming a number of formed parts 8. The positioning post 21 of the forming sub-plate 2 is inserted into the positioning jack 11 of the forming master plate 1 to achieve positioning in the horizontal direction, and the forming master plate 1 supports the forming sub-plate 2 to achieve positioning of the forming sub-plate 2 in the vertical direction. Finally, a number of forming sub-plates 2 are aligned and spliced to form a forming surface. During forming, the forming master plate 1 and the forming sub-plate 2 are placed together in the forming cylinder 9 of the laser melting forming device 7 and positioned on the piston 91 of the forming cylinder. The powder spreading system spreads powder and performs laser melting forming on the upper side surface of the forming sub-plate 2. After forming is completed, the forming master plate 1 and the forming sub-plate 2 are taken out of the forming cylinder together, and then the forming sub-plate 2 and the formed parts 8 thereon are taken off the forming master plate 1. The wire cutting device positions the forming sub-plate 2 and cuts and takes a small number of formed parts 8 thereon. This structure facilitates positioning and removal of the forming sub-plate 2 from the forming master plate 1, has a simple structure and accurate positioning. In addition, it may also be that a slot is provided on the forming master plate 1, and a number of forming sub-plates 2 are closely arranged and inserted into the slot on the forming master plate 1 for positioning, or a buckle is provided on the forming master plate 1 to be snap-connected with the forming sub-plate 2 or fixedly connected by screws. Such are equivalent replacement structures that are easily conceivable by those skilled in the art according to this patent and all fall within the protection scope of this patent.

[0026] The forming sub-plate 2 is of a square block structure. The positioning post 21 at its lower end is of a columnar structure with a non-circular cross-section, and the positioning jack 11 is a non-circular through-hole matching its cross-section. A non-circular cross-section can achieve non-rotatable insertion of the positioning post 21 into the positioning jack 11. The cross-section of the positioning post 21 can be a columnar body with a missing circle or a square columnar body, etc.

[0027] At least one linear positioning chute 12 is formed on the lower side surface of the forming master plate 1. The linear positioning chute 12 is sleeved on the linear guiding slide rail on the upper side surface of the forming cylinder piston of the laser melting forming device 7 in a straight-line sliding manner. At least two positioning receiving grooves 13 are further provided on the lower side surface of the forming master plate 1. The at least two positioning receiving grooves 13 are respectively located at both ends of the lower side surface of the forming master plate 1 along the extending direction of the linear positioning chute 12. The clamping stop pins on the forming cylinder piston of the laser melting forming device 7 can be received in the positioning receiving grooves 13, and the clamping stop pins can clamp the vertical side walls of the positioning receiving grooves 13 perpendicular to the extending direction of the linear positioning chute 12. The forming master plate 1 with the above structure can be accurately positioned on the piston of the forming cylinder. After the formed part 8 is formed, when the forming cylinder and the piston therein move to the part-taking position, by opening the clamping stop pins on the piston, the whole forming bottom plate can be quickly pushed out from the piston, and it is also convenient for the empty forming bottom plate to accurately enter the piston of the forming cylinder for accurate positioning, thereby ensuring that the formed parts 8 are all formed on the surfaces of the respective forming sub-plates 2 according to the designed positions.

[0028] An automatic circulation mechanism for a forming bottom plate, comprising a top table 3, a sub-plate conveying device, a sub-plate handling device, and a control system. The top table 3 is provided with a bottom plate positioning device, ejector rods 31, and an ejector rod driving device 32. The bottom plate positioning device can stop and position the forming mother plate 1 of the forming bottom plate. A plurality of ejector rods 31 are installed on the top table 3 in a liftable manner, and each ejector rod 31 can be inserted into a positioning hole 11 on the forming mother plate 1 in a one-to-one correspondence, and the positioning posts 21 on the lower side of the forming sub-plate 2 are completely ejected from the positioning holes 11. The ejector rod driving device 32 drives the ejector rods 31 to move up and down. The sub-plate handling device can individually or integrally transport the sub-plates lifted by the ejector rods 31 to the picking and loading station of the sub-plate conveying device, and individually or integrally transport the empty forming sub-plates 2 on the empty sub-plate loading station of the sub-plate conveying device to the forming mother plate 1 on the top table 3. The sub-plate conveying device can convey the forming sub-plate 2 with the formed parts 8 thereon at the picking and loading station to the wire cutting and picking station, and reversely convey the empty forming sub-plate 2 after picking to the empty sub-plate loading station. The control system controls the start and stop of the ejector rod driving device 32, the sub-plate conveying device, and the sub-plate handling device. After the formed parts 8 are formed on the forming sub-plates 2 of the forming bottom plate, the forming bottom plate together with the formed parts 8 is pushed out from the piston surface of the forming cylinder to the top table 3 for positioning. Then, the ejector rod driving device 32 drives the ejector rods 31 to rise, and the positioning posts 21 on each forming sub-plate 2 are ejected from the positioning holes 11 on the forming mother plate 1. At this time, the forming sub-plates 2 are separated from the forming mother plate 1. The sub-plate handling device transports the forming sub-plates 2 with the formed parts 8 thereon from the forming mother plate 1 to the sub-plate conveying device, and the sub-plate conveying device conveys them to the wire cutting and picking station. The wire cutting and picking equipment positions and cuts the forming sub-plates 2 to pick the parts. The forming mother plate 1 remains on the top table 3 and keeps the positioning state unchanged. After the formed parts 8 on the forming sub-plates 2 are wire cut and taken off, the sub-plate conveying device transports the empty forming sub-plates 2 back to the empty sub-plate loading station, and the sub-plate handling device transports them to the forming mother plate 1 positioned on the top table 3 again. The positioning posts 21 of the forming sub-plates 2 are inserted into the positioning holes 11 of the forming mother plate 1 for plug-in positioning. The top table 3 can supply this empty forming bottom plate to the forming cylinder of the laser melting forming equipment 7 again, and so on for cyclic use, realizing the automatic cyclic use of the forming bottom plate and automatic picking of parts.

[0029] The sub-plate conveying device includes a sub-piece loading conveyor belt 4 and a sub-piece unloading conveyor belt 5. The conveying starting end of the sub-piece loading conveyor belt 4 is the picking and loading station, and the conveying ending end of the sub-piece loading conveyor belt 4 is the wire cutting and picking station. The conveying starting end of the sub-piece unloading conveyor belt 5 is the wire cutting and picking station, and the conveying ending end of the sub-piece unloading conveyor belt 5 is the empty sub-plate loading station. The forming sub-plates 2 with the formed parts 8 are conveyed to the wire cutting and picking station and the empty forming sub-plates 2 are reversely sent back through two different conveyor belts without interference, or it can also be conveyed forward and backward by one conveyor belt.

[0030] An AGV trolley 6 is also provided. The ejection table 3 is fixedly installed on the AGV trolley 6. The control system can control the AGV trolley 6 to move to one side of the starting end of the sub-component feeding conveyor belt 4, or move to one side of the end of the sub-component discharging conveyor belt 5, or move to the feeding side of the forming bottom plate of the laser melting forming device 7, or move to the discharging side of the forming bottom plate of the laser melting forming device 7. A horizontally extending sub-component discharging connection plate 41 and a sub-component feeding connection plate 51 are respectively arranged at the starting end of the feeding conveyor belt and one side of the end of the sub-component discharging conveyor belt 5. One ends of the sub-component discharging connection plate 41 and the sub-component feeding connection plate 51 are respectively aligned and connected with the starting end of the sub-component feeding conveyor belt 4 and the end of the sub-component discharging conveyor belt 5. The other ends of the sub-component discharging connection plate 41 and the sub-component feeding connection plate 51 can respectively be aligned and connected with the upper side surface of the forming mother plate 1 on the ejection table 3 on one side thereof. The sub-component handling device is a first pushing device and a second pushing device respectively located at the starting end of the sub-component feeding conveyor belt 4 and the end of the sub-component discharging conveyor belt 5. Both the first pushing device and the second pushing device include a push plate and a push plate driving device. The push plate can reciprocate horizontally by a set distance, and the push plate driving device drives the push plate to move. The push plate of the first pushing device can horizontally push the formed sub-components lifted by the ejector rod 31 on the ejection table 3 onto the surface of the starting end of the sub-component feeding conveyor belt 4 as a whole. The push plate of the second pushing device can horizontally push the formed sub-components on the surface of the end of the sub-component discharging conveyor belt 5 onto the surface of the forming mother plate 1 on the ejection table 3 as a whole. The control system controls the driving devices of the first pushing device and the second pushing device and the operation of the AGV trolley 6. By moving the position of the ejection table 3 with the AGV trolley 6, the forming mother plate 1 on the ejection table 3 is docked with the sub-component discharging connection plate 41 at the starting end of the feeding conveyor belt, so as to realize that the formed sub-components and the formed parts 8 thereon are automatically horizontally pushed onto the starting end of the feeding conveyor belt for conveying. It can also realize the docking of the forming mother plate 1 on the ejection table 3 with the sub-component feeding connection plate 51 on one side of the end of the sub-component discharging conveyor belt 5, so as to realize that the empty forming assembly after taking the parts is horizontally pushed onto the forming mother plate 1 on the ejection table 3, and realize the connection and positioning of the formed sub-plate 2 and the forming mother plate 1. The AGV trolley 6 can also move the ejection table 3 equipped with the forming mother plate 1 and the empty formed sub-plate 2 to the feeding side of the forming bottom plate of the laser melting forming device 7, so as to facilitate loading the empty forming bottom plate into the forming cylinder of the laser melting forming device 7 and positioning it with the piston of the forming cylinder. The AGV trolley 6 can also move the ejection table 3 equipped with the empty one to the discharging side of the forming bottom plate of the laser melting forming device 7 to receive the forming bottom plate with the formed parts 8 pushed out from the piston of the forming cylinder. The AGV trolley 6 realizes the automatic disassembly and combination of the forming bottom plate, and the automatic supply and removal of the forming bottom plate to the laser melting forming device 7, realizes automatic intelligent control, reduces the labor intensity of workers, and saves labor costs.

[0031] The top table 3 is further provided with a plurality of conveying rollers 33 and roller driving devices. The forming master plate 1 of the forming bottom plate can be supported on the conveying rollers 33, and the whole forming bottom plate is conveyed forward by the rolling of the conveying rollers. The roller driving device drives the conveying rollers 33 to roll forward and backward to achieve forward and backward conveying. Flanges 34 are respectively arranged on both axial sides of the conveying rollers 33 of the top table 3. The flanges 34 stop at both sides of the forming bottom plate to realize the guiding of the forming bottom plate during forward conveying on the conveying rollers. One end of the top table 3 along the conveying direction of the conveying rollers 33 is further provided with a blocking member 35 capable of opening and closing. When in the closed state, the blocking member 35 can prevent the forming master plate 1 of the forming bottom plate at the conveying end of the bottom conveying rollers 33 from moving forward continuously. When in the open state, the blocking member 35 disengages from the blocking position of the forming master plate 1 of the forming bottom plate at the conveying end of the bottom conveying rollers 33, so that the forming bottom plate can continue to be conveyed forward. When the top table 3 is located on the feeding side of the forming bottom plate of the laser melting forming device 7, the empty forming bottom plate is actively fed into the forming cylinder of the laser melting forming device 7 through the conveying rollers 33 and automatically reaches the piston of the forming cylinder for positioning. When the top table 3 is located on the discharging side of the forming bottom plate of the laser melting forming device 7, the forming bottom plate with the formed part 8 pushed out from the forming cylinder is continuously conveyed forward through the conveying rollers 33 until the whole forming bottom plate reaches the designated position of the top table 3 and is blocked by the blocking member 35 and cannot move forward continuously. The above structure realizes the automatic feeding and discharging of the forming bottom plate to the laser melting forming device 7, and the discharged forming bottom plate is accurately positioned on the top table 3, which is convenient for splitting the forming sub-plate 2 from the forming master plate 1.

[0032] A horizontally extending overlapping section 36 is formed at the other end of the top table 3 along the conveying direction of the conveying rollers 33. The overlapping section 36 can extend into the frame of the laser melting forming device 7, so that the conveying rollers 33 thereon are horizontally aligned and connected with the piston of the forming cylinder of the laser melting forming device 7. So as to realize the smooth feeding and discharging of the forming bottom plate to the laser melting forming device 7.

[0033] The top ejection table 3 is also provided with a first sensing device. The first sensing device can sense whether there is a formed bottom plate on the top ejection table 3, and whether there are empty formed sub-pieces or formed sub-pieces 8 with formed parts on the formed bottom plate. At both ends of the AGV cart 6 or the top ejection table 3 along the AGV movement direction, there are also respectively provided a second sensing device and a third sensing device. The second sensing device can sense that the top ejection table 3 reaches one side of the conveying starting end of the sub-piece feeding conveyor belt 4 or reaches one side of the conveying end of the sub-piece discharging conveyor belt 5. The third sensing device can sense that the top ejection table 3 reaches one side of the forming cylinder of the laser melting forming device 7. The first sensing device, the second sensing device and the third sensing device can transmit the information they sense to the control system. When the first sensing device senses that there is no formed bottom plate on the top ejection table 3, the control system controls the AGV cart 6 to move to the formed bottom plate discharging side of the laser melting forming device 7 to receive the formed bottom plate with the formed part 8; when the first sensing device senses that there is only the formed mother plate 1 on the top ejection table 3, the control system controls the AGV cart 6 to move to one side of the conveying end of the sub-piece discharging conveyor belt 5 to receive the formed sub-plate 2 after the part is taken; when the first sensing device senses that there are the formed mother plate 1 and the empty formed sub-plate 2 on the top ejection table 3, the control system controls the AGV cart 6 to move to the formed bottom plate feeding side of the laser melting forming device 7 to supply a new formed bottom plate to the laser melting forming device 7, and eject the original formed bottom plate on the piston in the forming cylinder of the laser melting forming device 7 onto the top ejection table 3 without a formed bottom plate; when the first sensing device senses that there are the formed mother plate 1, the formed sub-plate 2 and the formed part 8 on the top ejection table 3, the control system controls the AGV cart 6 to move to one side of the conveying starting end of the sub-piece feeding conveyor belt 4 to receive the formed sub-plate 2 to be taken; the second sensing device and the third sensing device respectively sense whether the AGV cart 6 moves in place to prevent the AGV cart 6 from colliding due to failure to stop in time after moving in place. By controlling the movement of the AGV cart 6 through the above sensing devices, intelligent management and control are realized. The first sensing device can be a weight sensor, which is judged by the different weights borne on the top ejection table 3, or can be three position sensors respectively sensing the positions of the formed mother plate 1, the formed sub-plate 2 and the formed part 8. The second sensing device and the third sensing device can be contact sensors or distance sensors, etc.

Claims

1. A forming bottom plate for a laser melting forming device, characterized in that: It includes a forming master plate (1) and forming sub - plates (2). The several forming sub - plates can be detachably and fixedly installed on the upper surface of the forming master plate. The upper sides of the several forming sub - plates are spliced to form a forming surface for the forming of the formed part (8).

2. The forming bottom plate for a laser melting forming device according to claim 1, characterized in that: On the forming master plate, several positioning jacks (11) are evenly distributed in an array. On the lower side of the forming sub - plate, there are positioning posts (21). The positioning posts can be inserted into the positioning jacks on the forming master plate. The lower side surface of the forming sub - plate is flat against the upper side surface of the forming master plate, and the side walls of adjacent forming sub - plates are closely attached. The upper side surfaces of each forming sub - plate are aligned and joined to form a forming surface for the forming of several formed parts.

3. The forming bottom plate for a laser melting forming device according to claim 2, characterized in that: The forming sub - plate is a square - block structure. The positioning post at its lower end is a columnar structure with a non - circular cross - section, and the positioning jack is a non - circular perforation that matches its cross - section.

4. The forming bottom plate for a laser melting forming device according to claim 1 or 2, characterized in that: On the lower side surface of the forming master plate, at least one linear positioning chute (12) is formed. The linear positioning chute can be sleeved on the linear guiding slide rail on the upper side surface of the forming cylinder piston of the laser melting forming equipment and slide linearly. On the lower side surface of the forming master plate, there are also at least two positioning receiving grooves (13). The at least two positioning receiving grooves are respectively located at both ends of the lower side surface of the forming master plate along the extending direction of the linear positioning chute. The clamping stop pins on the forming cylinder piston of the laser melting forming equipment can be received in the positioning receiving grooves, and the clamping stop pins can clamp the vertical side walls perpendicular to the extending direction of the positioning receiving groove and the linear positioning chute.

5. An automatic recycling mechanism for a forming bottom plate for a laser melting forming device, which realizes the recycling of the forming bottom plate according to any one of claims 1-4, characterized in that: It includes a top - out table (3), a sub - plate conveying device, a sub - plate handling device, and a control system. On the top - out table, there is a bottom - plate positioning device, ejector rods (31), and an ejector - rod driving device (32). The bottom - plate positioning device can stop and position the forming master plate of the forming bottom plate. The several ejector rods can be installed on the top - out table to be able to move up and down. Each ejector rod can be inserted into the corresponding positioning jack on the forming master plate one by one, and completely eject the positioning posts on the lower side of the forming sub - plate from the positioning jacks. The ejector - rod driving device drives the ejector rods to move up and down. The sub - plate handling device can individually or integrally transport the sub - plates lifted by the ejector rods to the picking and loading station of the sub - plate conveying device, and individually or integrally transport the empty forming sub - plates at the empty - sub - plate loading station of the sub - plate conveying device to the forming master plate on the top - out table. The sub - plate conveying device can convey the forming sub - plates and the formed parts thereon at the picking and loading station to the wire - cutting and picking station, and reversely convey the empty forming sub - plates after picking to the empty - sub - plate loading station. The control system controls the start - stop operations of the ejector - rod driving device, the sub - plate conveying device, and the sub - plate handling device.

6. The automatic circulation mechanism of the formed bottom plate according to claim 5, wherein: The sub - plate conveying device includes a sub - part loading conveyor belt (4) and a sub - part unloading conveyor belt (5). The conveying starting end of the sub - part loading conveyor belt is the picking and loading station, and the conveying ending end of the sub - part loading conveyor belt is the wire - cutting and picking station. The conveying starting end of the sub - part unloading conveyor belt is the wire - cutting and picking station, and the conveying ending end of the sub - part unloading conveyor belt is the empty - sub - plate loading station.

7. The automatic circulation mechanism of the formed bottom plate according to claim 6, wherein: An AGV cart (6) is also provided. The ejection table is fixedly installed on the AGV cart. The control system can control the AGV cart to move to one side of the starting end of the sub-component feeding conveyor belt, or move to one side of the end of the sub-component discharging conveyor belt, or move to the loading side of the forming bottom plate of the laser melting forming device (7), or move to the discharging side of the forming bottom plate of the laser melting forming device. At the starting end of the feeding conveyor belt and one side of the end of the sub-component discharging conveyor belt, there are respectively horizontally extending sub-component discharging connection plates (41) and sub-component feeding connection plates (51). One ends of the sub-component discharging connection plate and the sub-component feeding connection plate are respectively aligned and connected to the starting end of the sub-component feeding conveyor belt and the end of the sub-component discharging conveyor belt. The other ends of the sub-component discharging connection plate and the sub-component feeding connection plate can respectively be aligned and connected to the upper side surface of the forming mother plate on the ejection table on one side thereof. The sub-component handling device is a first pushing device and a second pushing device respectively located at the starting end of the sub-component feeding conveyor belt and the end of the sub-component discharging conveyor belt. Both the first pushing device and the second pushing device include a push plate and a push plate driving device. The push plate can reciprocally translate a set distance in the horizontal direction, and the push plate driving device drives the push plate to move. The push plate of the first pushing device can horizontally push the formed sub-components lifted by the ejector rods on the ejection table onto the surface of the starting end of the sub-component feeding conveyor belt as a whole. The push plate of the second pushing device can horizontally push the formed sub-components on the surface of the end of the sub-component discharging conveyor belt onto the surface of the forming mother plate on the ejection table as a whole. The control system controls the driving devices of the first pushing device and the second pushing device and the operation of the AGV cart.

8. The automatic circulation mechanism of the formed bottom plate according to claim 5 or 7, characterized in that: Several conveying rollers (33) and roller driving devices are also provided on the ejection table. The forming mother plate of the forming bottom plate can be supported on the conveying rollers, and the whole forming bottom plate is conveyed forward by the rolling of the driving rollers. The roller driving device drives the conveying rollers to rotate forward and backward to realize forward and reverse conveying. Flanges (34) are respectively provided on both axial sides of the conveying rollers of the ejection table. The flanges stop at both sides of the forming bottom plate to realize the guiding of the forward conveying of the forming bottom plate on the conveying rollers. At one end of the ejection table along the conveying direction of the conveying rollers, there is also a blocking member (35) that can perform opening and closing actions. When in the closed state, the blocking member can prevent the forming mother plate of the forming bottom plate at the conveying end of the bottom conveying rollers from moving forward continuously. When in the open state, the blocking member disengages from the blocking position of the forming mother plate of the forming bottom plate at the conveying end of the bottom conveying rollers, so that the forming bottom plate can continue to be conveyed forward.

9. The automatic circulation mechanism of the formed bottom plate according to claim 8, characterized in that: At the other end of the ejection table along the conveying direction of the conveying rollers, there is a horizontally extending overlapping section (36). The overlapping section can extend into the frame of the laser melting forming device, so that the conveying rollers thereon are horizontally aligned and connected with the piston of the forming cylinder of the laser melting forming device.

10. The automatic circulation mechanism of the formed bottom plate according to claim 7, characterized in that: A first sensing device is also provided on the ejection table. The first sensing device can sense whether there is a formed bottom plate on the ejection table, and whether there are empty formed sub-pieces or formed sub-pieces with materials that have not been taken on the formed bottom plate. Second and third sensing devices are respectively provided at both ends of the AGV cart or the ejection table along the AGV movement direction. The second sensing device can sense that the ejection table reaches one side of the conveying starting end of the sub-piece loading conveyor belt or reaches one side of the conveying end of the sub-piece unloading conveyor belt, and the third sensing device can sense that the ejection table reaches one side of the forming cylinder of the laser melting forming equipment. The first sensing device, the second sensing device, and the third sensing device can transmit the information they sense to the control system.

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