A 3D printing device of a free-standing design

Abstract

The utility model discloses a kind of D printing device of no support design, including pedestal, forming unit, the forming unit is placed on pedestal top surface, the forming unit includes adjusting assembly and printing assembly, the adjusting assembly is used to adaptively adjust forming part horizontal state according to part shape, realize that part forming processing can be carried out without support, the printing assembly is used to part forming processing, auxiliary unit, the auxiliary unit is placed on forming unit top surface, the auxiliary unit is used to the fixing of forming part, to ensure that printing assembly continues part forming processing, under the restriction of forming unit, part forming processing can be carried out without support, under the restriction of auxiliary unit, part in processing process can be fixed, so that forming unit stably forms part.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a supportless 3D printing device. Background Technology

[0002] 3D printing, also known as additive manufacturing, is an advanced manufacturing technology based on the discrete-stacking principle. It uses digital model files as a basis and builds solid parts by layering materials. A supportless 3D printing device is a mechanical equipment that can form complex geometries without the need to build additional support structures during the additive manufacturing process.

[0003] Traditional 3D printing equipment requires the creation of supports for the parts during use, and the supports need to be removed after printing, which increases time and reduces work efficiency.

[0004] Therefore, a supportless 3D printing device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a supportless 3D printing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a supportless 3D printing device, including a base, A molding unit is placed on the top surface of a base. The molding unit includes an adjustment component and a printing component. The adjustment component is used to adjust the horizontal state of the molded part according to the shape of the part, so that the part can be molded without support. The printing component is used to process the part. An auxiliary unit is placed on the top surface of the forming unit. The auxiliary unit is used to fix the forming part to ensure that the printing component continues to form the part. Under the constraint of the forming unit, the part can be formed without support. Under the constraint of the auxiliary unit, the part can be fixed during the processing so that the forming unit can stably form the part.

[0007] Preferably, the adjusting component includes a fixed column, a fixed ball connected to the top of the fixed column, a ball sleeve fitted on the outer wall of the fixed ball, a lifting rod connected to the top of the ball sleeve, a forming platform connected to the end of the lifting rod away from the ball sleeve, and an adjusting telescopic rod provided below the forming platform.

[0008] Preferably, the printing assembly includes a vertical plate, a horizontal moving mechanism is provided at the top of the vertical plate, a horizontal moving block is sleeved on the outer wall of the horizontal moving mechanism, a vertical moving mechanism is connected to the outer wall of the horizontal moving block, a vertical moving block is sleeved on the outer wall of the vertical moving mechanism, and a metal wire laser cladding device is provided on the outside of the vertical moving block.

[0009] Preferably, there are four adjustable telescopic rods, arranged in a cross shape around the center of the fixed column. Under the constraint of the four independently moving adjustable telescopic rods, the tilt state of the forming platform can be adjusted.

[0010] Preferably, the bottom end of the adjusting telescopic rod is connected to the top surface of the base, and the top end of the adjusting telescopic rod is slidably set to the bottom of the forming platform. Under the independent adjustment and limitation of the four adjusting telescopic rods, the tilt angle of the forming platform can be adjusted in conjunction with the ball sleeve and the fixed ball, so that the material stacking surface is set horizontally.

[0011] Preferably, the bottom end of the upright plate is connected to the top surface of the base, and there are two upright plates symmetrically distributed around the center line of the top surface of the base. With the support of the two upright plates, the horizontal moving mechanism and the vertical moving mechanism can drive the metal wire laser cladding device to move stably.

[0012] Preferably, the auxiliary unit includes a sleeve block, inside which a screw is fitted, and a push plate is rotatably connected to the end of the screw, with a clamping pad connected to the side of the push plate away from the screw.

[0013] Preferably, the clamping pad is made of rubber and is slidably disposed on the top surface of the forming platform. Under the constraint of the rubber clamping pad, the friction coefficient of clamping the part can be increased, thus stably clamping the part.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, during 3D printing, a metal wire laser cladding device melts and stacks metal wires onto a forming platform to form a part. If the outer wall of the part has an inclined structure, four adjustable telescopic rods, in conjunction with the sliding constraint of the ball sleeve and the fixed ball, can drive the lifting rod to achieve omnidirectional tilt adjustment of the forming platform, keeping the material stacking surface horizontal, thus completing the internal forming of the part without the need for supports. Simultaneously, a longitudinal movement mechanism drives the metal wire laser cladding device to move longitudinally, and a transverse movement mechanism drives its transverse movement; the two work together to achieve forming processing in both the longitudinal and transverse directions. The synchronous adjustment of the four adjustable telescopic rods can change the height of the forming platform. This structure eliminates the need for supports, improves production efficiency, avoids powder cleaning, part deformation, and internal support marks, and ensures the integrity of the parts. 2. In this utility model, after the part is formed and the material is cured, the screw is rotated. Under the sliding constraint between the push plate and the top surface of the forming platform, the screw pushes the push plate connected to the end of the rotation, so that the clamping pad clamps the base of the part, ensuring that the part is placed stably when the forming platform is tilted, so as to facilitate subsequent material stacking processing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a schematic diagram of the molding unit and auxiliary unit structure of this utility model; Figure 3 This is a structural forming unit diagram of the present invention; Figure 4 This is an exploded view of the structural forming unit of this utility model; Figure 5 This is a structural auxiliary unit diagram of the present invention; Figure 6 This is an exploded view of the structural auxiliary unit of this utility model; In the diagram: 1. Base; 2. Molding unit; 3. Auxiliary unit; 21. Fixed column; 22. Fixed ball; 23. Ball sleeve; 24. Lifting rod; 25. Molding platform; 26. Adjustable telescopic rod; 27. Vertical plate; 28. Lateral moving mechanism; 29. ​​Lateral moving block; 210. Longitudinal moving mechanism; 211. Longitudinal moving block; 212. Metal wire laser cladding device; 31. Sleeve block; 32. Screw; 33. Push plate; 34. Clamping pad. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0017] Example 1 Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a supportless 3D printing device, including a base 1, a molding unit 2, and a molding unit 3.

[0018] Specifically, the forming unit 2 is placed on the top surface of the base 1. The forming unit 2 includes an adjustment component and a printing component. The adjustment component is used to adjust the horizontal state of the forming part according to the shape of the part, so that the part can be formed without support. The printing component is used to form the part.

[0019] The auxiliary unit 3 is placed on the top surface of the forming unit 2. The auxiliary unit 3 is used to fix the forming part so as to ensure that the printing assembly can continue to process the part.

[0020] Under the constraint of molding unit 2, parts can be molded without support. Under the constraint of auxiliary unit 3, parts can be fixed during the processing so that molding unit 2 can stably mold parts.

[0021] Example 2 Reference Figure 3 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiment, as follows: The adjustment assembly includes a fixed column 21, a fixed ball 22 connected to the top of the fixed column 21, a ball sleeve 23 fitted on the outer wall of the fixed ball 22, a lifting rod 24 connected to the top of the ball sleeve 23, a forming platform 25 connected to the end of the lifting rod 24 away from the ball sleeve 23, and an adjustment telescopic rod 26 provided below the forming platform 25.

[0022] The printing assembly includes a vertical plate 27, a horizontal moving mechanism 28 is provided at the top of the vertical plate 27, a horizontal moving block 29 is sleeved on the outer wall of the horizontal moving mechanism 28, a vertical moving mechanism 210 is connected to the outer wall of the horizontal moving block 29, a vertical moving block 211 is sleeved on the outer wall of the vertical moving mechanism 210, and a metal wire laser cladding device 212 is provided on the outer side of the vertical moving block 211.

[0023] There are four adjustable telescopic rods 26, which are arranged in a cross shape around the center of the fixed column 21. Under the restriction of the four independently moving adjustable telescopic rods 26, the tilt state of the forming platform 25 can be adjusted.

[0024] The bottom end of the adjusting telescopic rod 26 is connected to the top surface of the base 1, and the top end of the adjusting telescopic rod 26 is slidably set to the bottom of the forming platform 25. Under the independent adjustment and restriction of the four adjusting telescopic rods 26, the tilt angle of the forming platform 25 can be adjusted in conjunction with the ball sleeve 23 and the fixed ball 22, so that the material stacking surface is set horizontally.

[0025] Among them, the bottom end of the upright plate 27 is connected to the top surface of the base 1. There are two upright plates 27, which are symmetrically distributed around the center line of the top surface of the base 1. With the support of the two upright plates 27, the horizontal moving mechanism 28 and the vertical moving mechanism 210 can drive the metal wire laser cladding device 212 to move stably.

[0026] During 3D printing, under the constraint of the metal wire laser cladding device 212, the metal wire is melted and stacked on the top surface of the forming platform 25 to form a part. When the outer wall of the part has an inclined part, the adjusting telescopic rod 26 is activated. Under the sliding constraint of the ball sleeve 23 and the fixed ball 22, the forming platform 25 can be tilted in all directions through the lifting rod 24. The four adjusting telescopic rods 26 cooperate with each other to make the forming platform 25 tilted and the material stacking surface horizontal, so that no support is needed to support the inside of the part. At this time, the longitudinal moving mechanism 210 drives the longitudinal moving block 211 to move, thus moving the metal wire laser cladding device 212 longitudinally. It also drives the transverse moving mechanism 28, which in turn moves the transverse moving block 29 laterally. This, in turn, causes the transverse moving block 29 to move the longitudinal moving mechanism 210 and the longitudinal moving block 211 laterally, thus moving the metal wire laser cladding device 212 laterally. With their cooperation, the metal wire laser cladding device 212 can be processed through both longitudinal and transverse movements. Under the constraint of the lifting rod 24, and with the synchronous adjustment of the four adjusting telescopic rods 26, the height of the forming platform 25 can be adjusted. This structure eliminates the need for supports to aid in the production of parts, improving efficiency. The absence of supports also eliminates the need for cleaning powder from the parts, preventing deformation caused by deformation of the supports. Furthermore, the absence of supports prevents support marks from forming inside the parts, protecting their integrity.

[0027] Example 3 Reference Figure 5 and Figure 6 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiments, as detailed below: The auxiliary unit 3 includes a sleeve block 31, inside which a screw 32 is fitted. A push plate 33 is rotatably connected to the end of the screw 32, and a clamping pad 34 is connected to the side of the push plate 33 away from the screw 32.

[0028] The clamping pad 34 is made of rubber and is slidably disposed on the top surface of the forming platform 25. Under the constraint of the rubber clamping pad 34, the friction coefficient of clamping the part can be increased, and the part can be stably clamped.

[0029] After the material is stacked on the top surface of the molding platform 25 to form a part, and the material has cured, the screw 32 is rotated. Because the bottom of the push plate 33 is slidably set with the top surface of the molding platform 25, under its constraint, the rotating screw 32 pushes the push plate 33 rotatably connected to its end, causing the clamping pad 34 to clamp the base of the part, so as to ensure that the part can still be stably placed on the molding platform 25 when the molding platform 25 is tilted. This structure can stably place the part on the molding platform 25 so that material can be gradually stacked on the part.

[0030] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0031] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A supportless 3D printing device, characterized in that, include: Base A molding unit is placed on the top surface of the base. The molding unit includes an adjustment component and a printing component. The adjustment component is used to adjust the horizontal state of the molded part according to the shape of the part, so that the part can be molded without support. The printing component is used to process the part. An auxiliary unit is placed on the top surface of the forming unit and is used to fix the forming part to ensure that the printing assembly continues to process the part.

2. The supportless 3D printing device according to claim 1, characterized in that, The adjustment assembly includes a fixed column, a fixed ball connected to the top of the fixed column, a ball sleeve fitted on the outer wall of the fixed ball, a lifting rod connected to the top of the ball sleeve, a forming platform connected to the end of the lifting rod away from the ball sleeve, and an adjustment telescopic rod provided below the forming platform.

3. The supportless 3D printing apparatus according to claim 2, characterized in that, The printing assembly includes a vertical plate, a horizontal moving mechanism at the top of the vertical plate, a horizontal moving block sleeved on the outer wall of the horizontal moving mechanism, a vertical moving mechanism connected to the outer wall of the horizontal moving block, a vertical moving block sleeved on the outer wall of the vertical moving mechanism, and a metal wire laser cladding device on the outer side of the vertical moving block.

4. The supportless 3D printing apparatus according to claim 2, characterized in that, There are four adjustable telescopic rods, which are arranged in a cross shape around the center of the fixed column.

5. The supportless 3D printing apparatus according to claim 2, characterized in that, The bottom end of the adjustable telescopic rod is connected to the top surface of the base, and the top end of the adjustable telescopic rod is slidably disposed with respect to the bottom of the forming platform.

6. The supportless 3D printing apparatus according to claim 3, characterized in that, The bottom end of the upright plate is connected to the top surface of the base. There are two upright plates, which are symmetrically distributed around the center line of the top surface of the base.

7. The supportless 3D printing apparatus according to claim 2, characterized in that, The auxiliary unit includes a sleeve block, inside which a screw is fitted. A push plate is rotatably connected to the end of the screw, and a clamping pad is connected to the side of the push plate away from the screw.

8. The supportless 3D printing apparatus according to claim 7, characterized in that, The clamping pad is made of rubber and is slidably disposed on the top surface of the forming platform.

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