Additive manufacturing intelligent machining equipment for industrial production

Abstract

The invention relates to the technical field of additive manufacturing, and discloses additive manufacturing intelligent processing equipment for industrial production, which comprises an additive manufacturing cabinet and an additive manufacturing structure assembled in the additive manufacturing cabinet, the lower end of an additive part of the additive manufacturing structure is connected with a dripping nozzle through a bolt, and a ball groove in the dripping nozzle is matched with a ball seat to movably restrain a dripping bead with an output liquid channel. A drop bead is rigidly connected with a lantern ring through a limiting shaft body, a swing arm of the lantern ring is connected with a front arm and a rear arm respectively, the front arm is connected with a sliding rod and a limiting rolling rod through a threaded rod, and a liquid channel is formed in the rear arm and matched with a steam piston, a compact pressing plate, a heating strip and other structures. According to the invention, the height difference of the cladding layer is sensed in real time through the drop beads, the material is flexibly deflected and supplemented, and the rear arm is combined to generate steam by utilizing the waste heat of the drop nozzle to drive the compact pressing plate to carry out targeted pressing, so that the spreading uniformity of the molten drops is effectively improved, pores and surface bulges in the layer are eliminated, the surface flatness of a formed part is optimized, and the subsequent finish machining difficulty is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of additive manufacturing technology, specifically to an intelligent additive manufacturing processing equipment for industrial production. Background Technology

[0002] Additive manufacturing technology, as a core component of the intelligent manufacturing system, is an advanced manufacturing technology based on the discrete-stacking principle, which achieves component forming by layering materials. It is widely used in many industrial production fields such as machinery and equipment manufacturing, aerospace, automotive industry, rail transportation, medical devices, and mold processing. Intelligent additive manufacturing equipment for industrial production is a key piece of equipment developed to meet the needs of large-scale and batch production in industry. It can achieve efficient forming of complex irregular structural parts, high-performance functional parts, and customized parts. It can break through the process limitations of traditional subtractive manufacturing, shorten product development and production cycles, support the transformation and upgrading of industrial production towards flexibility, intelligence, and greenness, and is an important technological carrier for promoting the high-quality development of the manufacturing industry.

[0003] However, in industrial-scale production scenarios, conventional additive manufacturing intelligent processing equipment lacks the ability to monitor and adaptively control the processing process when carrying out component manufacturing operations. Most equipment can only perform molding operations according to preset programs and it is difficult to perceive the uniformity of droplet spreading in real time. Therefore, irregularities may appear on the surface of the cladding layer, with one side slightly lower and the other higher. Such defects will aggravate the surface roughness of the molded part and significantly increase the difficulty of subsequent milling, grinding and other finishing processes.

[0004] To address this, a smart additive manufacturing equipment for industrial production is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent additive manufacturing equipment for industrial production, so as to solve the problem of poor droplet spreading uniformity in existing equipment mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent additive manufacturing equipment for industrial production, comprising:

[0007] Additive manufacturing cabinet;

[0008] The additive manufacturing structure is assembled inside the additive manufacturing cabinet at the top and is located directly above the additive manufacturing base of the additive manufacturing cabinet.

[0009] The additive manufacturing structure includes additive components;

[0010] The lower end of the additive manufacturing unit that performs material deposition is connected to a nozzle via bolts. The lower part of the nozzle is provided with a ball groove that is open downwards and communicates with the additive manufacturing unit. The ball groove is used with bolts to constrain the movement of the droplet. The surface of the droplet is integrally formed with a limiting shaft perpendicular to the deposition direction. The ends of the limiting shaft are rigidly connected to a collar sleeved on the outside of the nozzle. The outer ring of the collar is integrally formed with a swing arm at the position of the droplet's shaft. The swing arm integrally formed with the collar has a front arm and a rear arm in a clasping state on the same side in the deposition movement direction and the opposite direction of deposition movement, respectively. The clasping end of the front arm is provided with a guide rod.

[0011] Preferably, the additive manufacturing component includes a robotic arm, an execution unit for layer-by-layer material deposition, and a material supply unit for precisely conveying the molding material, wherein the robotic arm is bolted to the top of the additive manufacturing cabinet.

[0012] Preferably, the center of the droplet has an output liquid channel that communicates with the additive component stacking execution unit. The upper and lower ports of the droplet output liquid channel are both treated with rounded corners, chamfers, or fan-shaped flaring to adapt to the additive component execution unit, and the flaring covers the angle range of the droplet swinging along the inner ball groove of the nozzle.

[0013] Preferably, the upper surface of the swing arm end has an upwardly convex constraint protrusion, which is elastically connected to the upper and lower ends of the swing spring by a swing arm of the same type integrally set on the outer ring surface of the retaining ring directly above the collar. The constraint protrusion is located on the axis inside the swing spring, and the retaining ring is interference-fitted to the lower side of the additive component near the port. Thus, the retaining ring and the swing spring elastically constrain the collar, preserving the angular ability of the droplet in the direction perpendicular to the working path of the additive component.

[0014] Preferably, both the front arm and the rear arm are composed of two L-shaped plates, and the converging ends of the plates are close to the stacking path.

[0015] Preferably, the clasping ends of the front arm are all engaged with the threaded rod through a telescoping adjustment mechanism, and the surface of the threaded rod has a nut that facilitates rotation and force application. The threaded rod is engaged with a movable connector that allows deflection in the direction parallel to the stacking path at one end, and is movably connected to the slide rod by bolts. The lower end of the slide rod is connected to a ball bearing that moves along the cladding layer through a ball seat.

[0016] Preferably, the slide bar and the threaded rod are respectively disposed on the inner and outer sides of the cladding layer, and the slide bar is rigidly connected to a limiting roller attached to the inner and outer surfaces of the component on the side close to the threaded rod. The limiting roller has balls that roll along the surface of the component.

[0017] Preferably, the rear arm has an integral column perpendicular to the stacking path at its embracing end. An internal liquid channel is provided along the path from the end near the swing arm to both ends of the column at the center of the rear arm. One-way valves for one-way input and one-way output are respectively installed at the port of the internal liquid channel near the swing arm and the upper port of the column. The input one-way valve is connected to a water supply device via a pipeline, and the output one-way valve is connected to a steam recovery device via a pipeline. A steam piston is elastically connected to the lower part of the internal liquid channel inside the column, in conjunction with a return spring. The lower end of the steam piston is sealed and protrudes from the rear arm and fixed to a tight pressure plate above the spaced-apart cladding layer. A heating strip is provided on the side of the rear arm near the nozzle, in thermal conductive contact with the nozzle, and the heating strip is rigidly connected to the nozzle.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the active constraint cooperation between the droplet and the nozzle ball groove, the flared setting of the droplet output channel, combined with the elastic reset structure of the collar, swing arm and swing spring, as well as the hugging design of the front arm L-shaped plate, the telescopic adjustment function of the threaded rod, and the close rolling linkage setting of the ball at the lower end of the slide rod and the limiting roller, enables the droplet to sense the difference in the height of the cladding layer in real time and flexibly deflect, allowing the molten material to be replenished to the lower area, effectively improving the uniformity of the molten droplet spreading and reducing irregular defects of the surface height difference of the molded part;

[0020] 2. This invention utilizes the connection between the built-in liquid channel of the rear arm and the one-way valve, water supply equipment and steam recovery equipment, combined with the heat conduction connection between the heating strip and the nozzle, the elastic linkage structure between the steam piston and the high-temperature resistant return spring, the fixed connection between the compacting plate and the steam piston and the synchronous deflection design of the rear arm, to heat the water by dissipating heat from the nozzle to generate steam pressure, which drives the compacting plate to perform targeted pressing on the newly formed cladding layer. This not only eliminates the pores in the layer and smooths the surface micro-protrusions, but also avoids excessive material accumulation in low-lying areas, further optimizing the surface flatness of the formed part and significantly reducing the difficulty of subsequent milling, grinding and other finishing processes. Attached Figure Description

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is a schematic diagram of the additive manufacturing structure of the present invention;

[0023] Figure 3 Cross-section of the additive manufacturing structure of the present invention Figure 1 ;

[0024] Figure 4 Cross-section of the additive manufacturing structure of the present invention Figure 2 ;

[0025] Figure 5 This is an anatomical diagram of the bottom structure of the robotic arm of the present invention;

[0026] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle;

[0027] Figure 7 For the present invention Figure 3 Enlarged view at point B in the middle;

[0028] Figure 8 This is a cross-sectional view of the rear arm and its internal structure of the present invention.

[0029] In the picture:

[0030] 1. Additive manufacturing cabinet;

[0031] 2. Additive manufacturing structure;

[0032] 21. Additive manufacturing components;

[0033] 22. Dropper; 221. Dropper bead; 222. Ring; 223. Swing arm; 224. Swing spring;

[0034] 23. Snap ring;

[0035] 24. Front arm; 241. Threaded rod; 242. Guide rod; 243. Limiting roller;

[0036] 25. Rear arm; 251. Internal fluid channel; 252. Steam piston; 253. Compacting pressure plate; 254. Return spring; 255. Heating strip. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1 to 8 This invention provides a technical solution for intelligent additive manufacturing equipment for industrial production:

[0039] An intelligent additive manufacturing equipment for industrial production includes:

[0040] Additive manufacturing cabinet 1 is the main load-bearing structure for additive manufacturing;

[0041] The additive manufacturing structure 2 is assembled inside the additive manufacturing cabinet 1 at the top and is located directly above the additive manufacturing base of the additive manufacturing cabinet 1.

[0042] The additive manufacturing structure 2 includes an additive component 21, which includes a robotic arm, an execution unit for stacking materials layer by layer, and a material supply unit for precisely conveying the molding material. The robotic arm is bolted to the top of the inside of the additive manufacturing cabinet 1.

[0043] The lower end of the additive manufacturing component 21, which is used to deposit and form materials, is connected to a nozzle 22 via bolts. A ball groove is provided inside the nozzle 22, opening downwards and communicating with the additive manufacturing component 21. A ball seat is used to constrain the movement of the droplet 221 via bolts. The center of the droplet 221 has an output liquid channel communicating with the additive manufacturing component 21's deposition and forming execution unit. A limiting shaft for vertical swinging is integrally formed on the surface of the droplet 221, perpendicular to the deposition direction. The ends of the limiting shaft are rigidly connected to a collar 222 fitted outside the nozzle 22. The upper and lower ports of the droplet 221's output liquid channel... All components undergo rounded, chamfered, or fan-shaped flaring treatments to adapt to the actuator of additive component 21, and the flaring covers the angular range of the droplet 221 swinging along the internal ball groove of nozzle 22. A swing arm 223 is integrally formed on the outer ring surface of collar 222 at the axial position of droplet 221, and the upper surface of the swing arm 223 has an upwardly protruding constraint protrusion. This constraint protrusion, along with a similar swing arm 223 integrally formed on the outer ring surface of retaining ring 23 directly above collar 222, is elastically connected to the upper and lower ends of swing spring 224. The constraint protrusion is located on the axis inside swing spring 224. Retaining ring 23 is interference-fitted to the lower side of additive component 21. The position is close to the port, so that the retaining ring 23, in conjunction with the swing spring 224, provides elastic constraint on the collar 222, preserving the angular ability of the droplet 221 in the direction perpendicular to the working path of the additive component 21. The swing arm 223, which is integrated with the collar 222, is rigidly connected on the same side to a front arm 24 and a rear arm 25 in a hugging state in the direction of stacking movement and the opposite direction of stacking movement, respectively. The front arm 24 and the rear arm 25 are both composed of two L-shaped plates, and the hugging ends of the plates are close to the stacking path. The hugging ends of the front arm 24 are engaged with the threaded rod 241 through a telescoping adjustment mechanism, and the threaded rod 241 is also engaged with the front arm 222. The surface of rod 241 has a nut that facilitates rotation and force application. The threaded rod 241 is connected to the slide rod 242 by bolts at one end near the stacking movement path with a movable connector that allows deflection in the direction parallel to the stacking path. The lower end of the slide rod 242 is connected to a ball bearing that moves along the cladding layer via a ball seat. The slide rod 242 and the threaded rod 241 are respectively set on the inner and outer sides of the cladding layer. The slide rod 242 is rigidly connected to a limiting roller 243 attached to the inner and outer surfaces of the component on the side near the threaded rod 241. The limiting roller 243 is provided with a ball bearing that moves along the surface of the component.

[0044] After the execution unit of the additive component 21 is started, the material supply unit sends the molding material into the execution unit for melting. The molten material enters the nozzle 22 through the internal channel. The ball groove and ball seat of the nozzle 22 cooperate to form a moving constraint on the droplet 221. The output liquid channel of the droplet 221 is connected to the execution unit channel and the upper and lower ports are treated with rounded corners, chamfers or fan-shaped flaring to ensure that the material is conveyed without leakage or interruption. When the robotic arm drives the additive component 21 to stack along the cladding layer, the front arm 24, which is integrated with the collar 222, moves synchronously under the constraint of the slide bar 242 and the limiting roller 243. When encountering a difference in the height of the cladding layer, the lower end of the slide bar 242 receives force feedback, which drives the threaded rod 241 and the front arm 24 to swing. Through the collar 222 and the limiting shaft, the droplet 221 is deflected, causing the material to be biased towards the lower area. After moving to the flat area, the droplet 221 is reset under the action of the swing spring 224, thereby improving the uniformity of the molten droplet spreading.

[0045] In summary, through the active constraint cooperation between the droplet 221 and the ball groove of the nozzle 22, the flared design of the output channel of the droplet 221, the elastic reset structure of the collar 222, the swing arm 223 and the swing spring 224, the hugging design of the L-shaped plate of the front arm 24, the telescopic adjustment function of the threaded rod 241, and the close rolling linkage between the ball at the lower end of the slide bar 242 and the limiting roller 243, the droplet 221 can sense the height difference of the cladding layer in real time and flexibly deflect, allowing the molten material to be replenished to the lower area, effectively improving the uniformity of the molten droplet spreading and reducing irregular defects of uneven surface of the molded part.

[0046] As one embodiment of the present invention, such as Figure 8 As shown, the rear arm 25 has an integral column perpendicular to the stacking path at its cladding end. An internal liquid channel 251 is provided at the center of the rear arm 25, extending from one end near the swing arm 223 to both ends of the column. One-way valves for one-way input and one-way output are respectively installed at the port of the internal liquid channel 251 near the swing arm 223 and the upper port of the column. The input one-way valve is connected to the water supply equipment through a pipeline, and the output one-way valve is connected to the steam recovery equipment through a pipeline. A steam piston 252 is elastically connected to the lower part of the internal liquid channel 251 of the column in conjunction with a high-temperature resistant return spring 254. The lower end of the steam piston 252 is sealed and passes through the rear arm 25 and is fixed to the compaction plate 253 above the spaced cladding layer. A heating strip 255 is provided on the side of the rear arm 25 near the nozzle 22 in thermal conductive contact with the nozzle 22, and the heating strip 255 is rigidly connected to the nozzle 22.

[0047] During operation, the rear arm 25 on the other side of the collar 222 moves forward and deflects synchronously. Its built-in liquid channel 251 is connected to the water supply equipment via an input check valve to achieve quantitative water supply. The heating strip 255 uses the heat dissipated by the drip nozzle 22 to heat the water to boiling and generate steam. The steam accumulates in the built-in liquid channel 251 of the column, forming downward pressure, which pushes the steam piston 252 to move downward against the constraint of the return spring 254. This causes the lower end of the sealing plate 253, which passes through the rear arm 25, to move downward synchronously. Because the rear arm 25 deflects synchronously, the sealing plate 253 is lower and has a greater force on the lower side of the cladding layer, thus increasing the pressure. When applying a rigid and fluid cladding layer, it avoids excessive material dripping and accumulation on the lower side, eliminates pores within the layer, smooths surface micro-protrusions, and prevents roughness defects after cooling. As the steam in the built-in liquid channel 251 increases and the pressure rises, the output check valve opens to release pressure, delivering steam and hot water to the steam recovery equipment. After pressure release, the pressure in the built-in liquid channel 251 decreases, the output check valve closes, and the compacting plate 253 resets under the action of the return spring 254. At this time, the pressure in the built-in liquid channel 251 is lower than the water supply pressure of the water supply equipment, and the input check valve opens to replenish clean water into the built-in liquid channel 251.

[0048] In summary, by connecting the liquid channel 251 built into the rear arm 25 with the one-way valve, water supply equipment, and steam recovery equipment, and by combining the heat conduction connection between the heating strip 255 and the nozzle 22, the elastic linkage structure between the steam piston 252 and the high-temperature return spring 254, the fixed connection between the compacting plate 253 and the steam piston 252, and the synchronous deflection design of the rear arm 25, the heat dissipated by the nozzle 22 is used to heat the water to generate steam pressure, which drives the compacting plate 253 to perform targeted pressing on the newly formed cladding layer. This not only eliminates the pores in the layer and smooths the surface micro-protrusions, but also avoids excessive material accumulation in low-lying areas, further optimizing the surface flatness of the formed part and significantly reducing the difficulty of subsequent milling, grinding, and other finishing processes.

[0049] Working Principle: During operation, the additive manufacturing process is prepared according to the additive manufacturing operation specifications. First, the robotic arm of the additive component 21 completes initial positioning based on the preset forming path. Then, according to the thickness of the component to be formed, the nut on the surface of the threaded rod 241 is rotated, driving the slide rod 242 to approach the inner and outer sides of the cladding layer until the ball at the lower end of the slide rod 242 is in contact with the surface of the cladding layer. At the same time, the ball of the limiting roller 243 is attached to the inner and outer surfaces of the component, forming a clamping posture on both sides and surface contact. Simultaneously, the material supply unit completes the pre-feeding and pressure adjustment of the forming material (such as metal material) to ensure that the material can be stably delivered to the execution unit. At this time, the droplet 221 maintains an initial output angle perpendicular to the stacking direction when there is no external force. After preparation is completed... After the execution unit of additive component 21 is started, the material supply unit sends the molding material into the execution unit to melt the material. The molten material will flow along the channel inside additive component 21 and eventually enter the nozzle 22. The ball groove below the nozzle 22 cooperates with the ball seat to form a movement constraint on the droplet 221 (allowing the droplet 221 to swing along the ball groove without falling off). The output liquid channel of the center of the droplet 221 is connected to the channel of the execution unit. The material drips down through the output liquid channel and forms a new accumulation layer on the base or the surface of the already formed cladding layer. At this time, the upper and lower ports of the output liquid channel of the droplet 221 are treated with rounded corners, chamfers or fan-shaped flaring, and the flaring range covers the possible subsequent swing angle of the droplet 221 to ensure that the material can still be smoothly delivered when the droplet 221 deflects. There is no leakage or flow interruption. When the robotic arm drives the additive component 21 to perform the stacking operation along the formed cladding layer, the front arm 24, which is integrally connected to the collar 222, moves synchronously along the path of the formed cladding layer under the constraint of the slide bar 242 and the limiting roller 243. When there is a height difference between the inner and outer sides of the cladding layer surface, the ball at the lower end of the slide bar 242 will generate upward or downward force feedback due to the contact height difference under the action of the swing spring 224. If one side of the cladding layer is higher, the slide bar 242 on that side will be pushed upward, and the threaded rod 241 and the front arm 24 connected to the slide bar 242 on that side will swing according to the height of the lifting, and then cooperate with the collar 222 to drive the dropper 221 to swing along the internal path of the nozzle 22 through the limiting shaft. During the swinging motion, the droplet 221 corresponding to the higher side of the cladding layer swings upwards. As the material droplets fall along the output channel, they tilt towards the lower side along the inner wall, allowing more material to fall into the lower area. After moving to the flat area of ​​the cladding layer, the droplet 221 rotates and returns to its initial angle under the elastic return force of the swing spring 224, thereby improving the uniformity of each layer of molten droplets. At the same time, the rear arm 25 on the other side of the collar 222 follows and deflects synchronously. During deflection, the built-in liquid channel 251 of the rear arm 25 is connected to the water supply device through the input one-way valve, providing a metered amount of clean water to the built-in liquid channel 251 in one direction. The heating strip 255 conducts heat dissipated from the surface of the drip nozzle 22 to quickly heat the clean water to boiling and generate steam.Steam accumulates in the built-in liquid channel 251 of the column section, forming downward pressure. This steam pressure pushes the steam piston 252 downwards, overcoming the elastic constraint of the return spring 254. The lower end of the steam piston 252 seals through the rear arm 25, causing the fixed compacting plate 253 to move downwards synchronously. Due to the synchronous deflection of the rear arm 25, the downward-moving compacting plate 253 will be relatively lower on the side with the lower cladding layer. The height of the compacting plate 253 during downward movement will also be lower than the height on the side with the higher cladding layer. When the compacting plate 253, under the action of steam, quickly presses onto the surface of the newly formed, still somewhat fluid cladding layer, the force on the lower side will be relatively greater than on the higher side. This not only prevents the lower side of the cladding layer from becoming too high due to excessive dripping of liquid material, but also eliminates porosity within the layer and smooths the surface. The surface is slightly convex to prevent roughness defects after cooling. Then, as the steam inside the built-in liquid channel 251 increases, the internal pressure of the built-in liquid channel 251 increases, creating a pressure difference between the built-in liquid channel 251 and the outside. The output one-way valve then opens to release the pressure, transporting steam and hot water along the pipeline to the steam recovery equipment. After depressurization, the internal pressure of the built-in liquid channel 251 decreases, the output one-way valve closes, and the clamping plate 253 quickly resets under the action of the return spring 254. At this time, the pressure inside the built-in liquid channel 251 will be less than the water supply pressure of the water supply equipment. Then, the input one-way valve opens to replenish clean water into the built-in liquid channel 251. The above-mentioned linkage actions are continuously executed throughout the additive manufacturing process. As the robotic arm raises layer by layer (or the base descends), material is accumulated layer by layer, ultimately forming a component that meets the design requirements.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent additive manufacturing equipment for industrial production, comprising: Additive manufacturing cabinet (1); The additive manufacturing structure (2) is mounted inside the additive manufacturing cabinet (1) and is located directly above the additive manufacturing base of the additive manufacturing cabinet (1). The additive manufacturing structure (2) includes an additive component (21); Its features are: The lower end of the additive component (21) for stacking and forming the material is connected to a nozzle (22) by bolts. The lower part of the nozzle (22) is connected to the additive component (21) and has a ball groove that is open downwards. The nozzle (22) is used with a ball seat to constrain the movement of the droplet (221) by bolts. The surface of the droplet (221) is integrally formed with a limiting shaft perpendicular to the stacking direction. The ends of the limiting shaft are rigidly connected to a collar (222) sleeved on the outside of the nozzle (22). The outer ring surface of the collar (222) is integrally formed with a swing arm (223) at the shaft position of the droplet (221). The swing arm (223) integrally formed with the collar (222) is rigidly connected to a front arm (24) and a rear arm (25) in a hugging state on the same side in the stacking movement direction and the opposite direction of stacking movement, respectively. The hugging end of the front arm (24) is provided with a slide bar (242).

2. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: The additive component (21) includes a robotic arm, an execution unit for stacking materials layer by layer, and a material supply unit for precisely conveying the molding material, wherein the robotic arm is bolted to the top of the inside of the additive manufacturing cabinet (1).

3. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: The droplet (221) has an output liquid channel at its center that is connected to the stacking unit of the additive component (21). The upper and lower ports of the output liquid channel of the droplet (221) are both treated with rounded corners, chamfers or fan-shaped flaring to adapt to the additive component (21) execution unit, and the flaring covers the angle range of the droplet (221) swinging along the inner ball groove of the nozzle (22).

4. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: The upper surface of the arm end of the swing arm (223) has an upwardly protruding constraint protrusion, which is elastically connected to the upper and lower ends of the swing spring (224) by the swing arm (223) integrally set on the outer ring surface of the retaining ring (222) directly above the collar (222). The constraint protrusion is located on the axis inside the swing spring (224), and the retaining ring (23) is interference-fitted to the lower side of the additive component (21) near the port. Thus, the retaining ring (23) and the swing spring (224) provide elastic constraint on the collar (222), preserving the angular ability of the droplet (221) in the direction perpendicular to the working path of the additive component (21).

5. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: Both the front arm (24) and the rear arm (25) are composed of two L-shaped plates, and the converging ends of the plates are close to the stacking path.

6. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: The front arm (24) has its clasping ends connected to the threaded rod (241) via a threaded connection for telescoping. The threaded rod (241) has a nut on its surface for easy rotation and force application. The threaded rod (241) is connected to the slide rod (242) via bolts at one end near the stacking path by a movable connector that allows deflection in the direction parallel to the stacking path. The lower end of the slide rod (242) is connected to a ball bearing that moves along the cladding layer via a ball seat.

7. The intelligent additive manufacturing equipment for industrial production according to claim 6, characterized in that: The slide bar (242) is matched with the threaded rod (241) and is disposed on the inner and outer sides of the cladding layer. The slide bar (242) is rigidly connected to the limiting roller (243) attached to the inner and outer surfaces of the component on the side close to the threaded rod (241). The limiting roller (243) has rolling balls that move along the surface of the component.

8. The intelligent additive manufacturing equipment for industrial production according to claim 1, characterized in that: The rear arm (25) has an integral column perpendicular to the stacking path at its clasped end. An internal liquid channel (251) is provided at the center of the rear arm (25) along the path from one end near the swing arm (223) to both ends of the column. One-way valves for one-way input and one-way output are respectively installed at the port of the internal liquid channel (251) near the swing arm (223) and the upper port of the column. The input one-way valve is connected to a water supply device via a pipeline, and the output one-way valve is connected to a steam recovery device via a pipeline. The column is connected in a row. Inside the built-in liquid channel (251) of the column section, a steam piston (252) is elastically connected with a reset spring (254). The lower end of the steam piston (252) is sealed and passes through the rear arm (25) and is fixed to the tight pressure plate (253) above the cladding layer. The side of the rear arm (25) near the nozzle (22) is in thermal conductive contact with the nozzle (22) and a heating strip (255) is provided. The heating strip (255) is rigidly connected to the nozzle (22).

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