A printing device for additive manufacturing

Abstract

This utility model relates to the field of additive manufacturing printing technology and discloses a printing device for additive manufacturing, including a connecting frame. A rotating seat is fixedly connected to the inner sides of the front and rear of the connecting frame. A rotating shaft is rotatably connected to the inner side of the rotating seat. A swing amplitude adjustment mechanism is provided on the inner side of the top of the connecting frame. A printing mechanism is provided at the bottom of the swing amplitude adjustment mechanism. By manually rotating the locking button according to the swing amplitude of the printed part, the position of the sliding frame and the inside of the rotating sleeve can be adjusted. Then, the locking button is released, and the locking block is re-inserted into the corresponding slot of the rotating frame under the elastic force of the spring. This allows the device to adjust the corresponding swing amplitude according to the swing stroke required by the printed part, thereby avoiding the need for frequent control of the motor's forward and reverse rotation, further increasing the motor's service life and facilitating long-term use of the motor.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing printing technology, specifically to a printing device for additive manufacturing. Background Technology

[0002] With the transformation and upgrading of global manufacturing, efficient, flexible, and customized production methods are gradually becoming mainstream. Traditional manufacturing faces challenges such as rapid product updates, increasing personalized demands, and rising cost pressures. Additive manufacturing technology (i.e., 3D printing technology), with its unique advantages, provides a brand-new solution for the manufacturing industry. Moreover, additive manufacturing printing devices can create three-dimensional objects with complex shapes and structures without the need for traditional molds and fixtures, greatly shortening the product development cycle.

[0003] According to the patent application CN221110237U, "An adjustable CMT additive manufacturing printing device includes a mounting frame, a controller, a swing mechanism, and a printing mechanism. The swing mechanism is mounted on the mounting frame and includes a positioning rod, a rotating component, and a swing component. The positioning rod is fixed to the bottom of the mounting frame, the rotating component is inserted into the top of the mounting frame, the swing component is mounted on the positioning rod, and the printing mechanism is mounted on the positioning rod. The printing mechanism includes a welding wire and a printing component."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This invention utilizes an arc-shaped oscillating printing method, controlling the oscillation of the welding torch via a swing plate. The controller and selection components adjust the oscillation rate and amplitude of the welding torch, thereby controlling the printing rate and forming width. During printing, the longitudinal displacement speed controls the printing overlap rate, greatly improving the stability of arc printing. However, in actual use, this device requires frequent control of the motor's forward and reverse rotation to adjust the welding torch's oscillation amplitude. Consequently, frequent and prolonged use can easily wear out the motor's lifespan, hindering its long-term operation. Therefore, an improved additive manufacturing printing device is needed. Utility Model Content

[0006] The purpose of this invention is to provide a printing device for additive manufacturing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a printing device for additive manufacturing, comprising a connecting frame, a rotating seat fixedly connected to the inner sides of the front and rear of the connecting frame, a rotating shaft rotatably connected to the inner side of the rotating seat, a swing amplitude adjustment mechanism provided on the inner side of the top of the connecting frame, and a printing mechanism provided at the bottom of the swing amplitude adjustment mechanism;

[0008] The swing amplitude adjustment mechanism includes a swing component and an amplitude adjustment component, wherein the amplitude adjustment component is disposed outside the swing component;

[0009] The swing assembly includes a fixed plate, which is fixedly connected to the inner side of the top of the connecting frame. A motor is fixedly connected to the back of the fixed plate, and a rotating frame is fixedly connected to the output end of the motor. A rotating sleeve is fixedly connected to the outside of the rotating shaft, and a slider is slidably connected to the inside of the rotating sleeve to facilitate the reciprocating swing of the rotating sleeve.

[0010] Preferably, a groove is provided at the position corresponding to the rotating sleeve and the slider, and the slider is slidably connected in the groove to facilitate adjustment of the reciprocating swing stroke.

[0011] Preferably, the amplitude adjustment component includes a sliding frame, which is slidably connected to the inside of the rotating frame. A connecting cylinder is fixedly connected to the front of the sliding frame. A rotating rod is rotatably connected inside the sliding frame. Connecting rods are rotatably connected to both ends of the rotating rod. A locking block is rotatably connected to the end of the connecting rod away from the rotating rod. A spring is fixedly connected between the locking block and the sliding frame. A locking button is fixedly connected to the front of the rotating rod to facilitate pushing the sliding frame to move.

[0012] Preferably, the connecting cylinder has a hole at the position corresponding to the button, and the button is rotatably connected in the hole to facilitate adjustment of the slider position.

[0013] Preferably, the inner side of the rotating frame has multiple slots, and the card block is inserted into the slot, and the slider is rotatably connected to the outside of the connecting cylinder, which facilitates the rotation of the rotating frame.

[0014] Preferably, the printing mechanism includes a connecting plate, which is fixedly connected to the bottom of the rotating sleeve. A bidirectional screw is rotatably connected inside the connecting plate, and a clamping plate is threadedly connected to the outside of the bidirectional screw. A sliding column is fixedly connected between the connecting plates, and a chuck abuts between the clamping plates. A welding gun is fixedly connected to the bottom of the chuck, and a protective gas nozzle is fixedly connected to the bottom of the welding gun. Welding wire is provided inside the welding gun to facilitate fixing the welding gun.

[0015] Preferably, the clamping plate has a groove at the position corresponding to the sliding column, and the clamping plate is slidably connected to the outside of the sliding column to facilitate limiting the position of the clamping plate.

[0016] Compared with the prior art, the present invention provides a printing device for additive manufacturing, which has the following advantages:

[0017] 1. This additive manufacturing printing device, through a swing amplitude adjustment mechanism, adjusts the position of the sliding frame and the rotating sleeve by manually rotating a latch according to the swing amplitude of the printed part. Then, by releasing the latch, the latch is re-inserted into the corresponding slot of the rotating frame under the elastic force of the spring. This allows the device to adjust the swing amplitude according to the swing stroke required by the printed part, thereby avoiding the need for frequent control of the motor's forward and reverse rotation, further increasing the motor's service life and facilitating long-term use of the motor.

[0018] 2. The printing device for additive manufacturing, through the printing mechanism, has a protective gas nozzle to protect the welding torch. In the coaxial wire feeding consumable electrode arc additive manufacturing process, the welding wire comes into contact with the printed part to generate an arc. The arc melts the welding wire and forms a molten pool on the surface of the printed part in the form of molten droplet transfer. Multiple oscillating forms overlap to make the heat transfer more uniform during the printing process and the printing shape more stable, thereby realizing arc oscillating arc printing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of the swing amplitude adjustment mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the unfolded structure of the swing assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the unfolded structure of the amplitude modulation component of this utility model;

[0024] Figure 5 This is a schematic diagram of the external structure of the printing mechanism of this utility model.

[0025] In the diagram: 1. Connecting frame; 2. Rotating seat; 3. Rotating shaft; 4. Swing amplitude adjustment mechanism; 5. Printing mechanism; 41. Swing assembly; 42. Amplitude adjustment assembly; 411. Fixing plate; 412. Motor; 413. Rotating frame; 414. Rotating sleeve; 415. Slider; 421. Sliding frame; 422. Connecting cylinder; 423. Rotating rod; 424. Connecting rod; 425. Locking block; 426. Spring; 427. Locking button; 51. Connecting plate; 52. Bidirectional screw; 53. Sliding column; 54. Clamping plate; 55. Chuck; 56. Welding torch; 57. Protective gas nozzle; 58. Welding wire. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] Based on the existing technology, this device requires frequent forward and reverse rotation of the motor to adjust the welding torch's swing amplitude. This can easily shorten the motor's lifespan during frequent and prolonged use, hindering its long-term operation. Please refer to [link to relevant documentation]. Figure 1-5 This utility model provides a technical solution: a printing device for additive manufacturing, including a connecting frame 1, a rotating seat 2 fixedly connected to the front and rear inner sides of the connecting frame 1, a rotating shaft 3 rotatably connected to the inner side of the rotating seat 2, a swing amplitude adjustment mechanism 4 provided on the top inner side of the connecting frame 1, and a printing mechanism 5 provided at the bottom of the swing amplitude adjustment mechanism 4.

[0030] The swing amplitude adjustment mechanism 4 includes a swing component 41 and an amplitude adjustment component 42, with the amplitude adjustment component 42 disposed outside the swing component 41;

[0031] The swing assembly 41 includes a fixed plate 411, which is fixedly connected to the inner top of the connecting frame 1. A motor 412 is fixedly connected to the back of the fixed plate 411. A rotating frame 413 is fixedly connected to the output end of the motor 412. A rotating sleeve 414 is fixedly connected to the outside of the rotating shaft 3. A slider 415 is slidably connected to the inner side of the rotating sleeve 414 to facilitate the reciprocating swing of the rotating sleeve 414.

[0032] Furthermore, a groove is provided at the corresponding position of the rotating sleeve 414 and the slider 415, and the slider 415 is slidably connected in the groove, which facilitates the adjustment of the reciprocating swing stroke.

[0033] Furthermore, the amplitude adjustment component 42 includes a sliding frame 421, which is slidably connected to the inside of the rotating frame 413. A connecting cylinder 422 is fixedly connected to the front of the sliding frame 421. A rotating rod 423 is rotatably connected inside the sliding frame 421. Connecting rods 424 are rotatably connected to both ends of the rotating rod 423. A locking block 425 is rotatably connected to the end of the connecting rod 424 away from the rotating rod 423. A spring 426 is fixedly connected between the locking block 425 and the sliding frame 421. A latch 427 is fixedly connected to the front of the rotating rod 423 to facilitate pushing the sliding frame 421 to move.

[0034] Furthermore, the connecting cylinder 422 has a hole at the corresponding position of the latch 427, and the latch 427 is rotatably connected in the hole, which facilitates the adjustment of the position of the slider 415.

[0035] Furthermore, the inner side of the rotating frame 413 is provided with multiple slots, and the locking block 425 is inserted into the slots. The slider 415 is rotatably connected to the outside of the connecting cylinder 422, which facilitates the rotation of the rotating frame 413.

[0036] Example 2:

[0037] Based on the existing technology's need for convenient printing, please refer to [link / reference]. Figure 5 Furthermore, in conjunction with Embodiment 1, the printing mechanism 5 includes a connecting plate 51, which is fixedly connected to the bottom of the rotating sleeve 414. A bidirectional screw 52 is rotatably connected inside the connecting plate 51, and a clamping plate 54 is threadedly connected to the outside of the bidirectional screw 52. A sliding column 53 is fixedly connected between the connecting plates 51, and a chuck 55 abuts between the clamping plates 54. A welding gun 56 is fixedly connected to the bottom of the chuck 55, and a protective gas nozzle 57 is fixedly connected to the bottom of the welding gun 56. A welding wire 58 is provided inside the welding gun 56 to facilitate fixing the welding gun 56.

[0038] Furthermore, the clamping plate 54 is provided with a groove at the corresponding position of the sliding column 53, and the clamping plate 54 is slidably connected to the outside of the sliding column 53, which facilitates limiting the position of the clamping plate 54.

[0039] In actual operation, when the device is used, firstly, before printing, the swing amplitude adjustment mechanism 4 is used to manually rotate the latch 427 according to the swing amplitude of the printed part. The latch 427 drives the rotating rod 423 to rotate, and the rotating rod 423 pulls the connecting rod 424 to move synchronously. Then, the connecting rod 424 pulls the corresponding latch 425 to move synchronously, so that the latch 425 is completely disengaged from the rotating frame 413. Then, the sliding frame 421 is pulled down, so that the sliding frame 421 moves along the guide of the rotating frame 413. During the movement of the sliding frame 421, the slider 415 moves synchronously, thereby adjusting the position of the sliding frame 421 and the inside of the rotating sleeve 414. Then, the latch 427 is released, and under the elastic force of the spring 426, the latch 425 is reinserted into the corresponding slot of the rotating frame 413, so that the device can print according to the required size of the printed part. The swing stroke is adjusted to adjust the swing amplitude accordingly, thereby avoiding the need for frequent control of the forward and reverse rotation of the motor 412. After adjusting the stroke, the motor 412 is started, which drives the rotating frame 413 to rotate. The rotating frame 413 then drives the corresponding slider 415 to move. During the movement of the slider 415, the rotating sleeve 414 rotates around the connection point of the rotating seat 2, thereby synchronously driving the corresponding welding gun 56 to swing back and forth. Subsequently, the protective air nozzle 57 of the printing mechanism 5 is used to protect the welding gun 56. In the coaxial wire feeding fused electrode arc additive manufacturing process, the welding wire 58 contacts the printed part to generate an arc. The arc melts the welding wire 58 and forms a molten pool on the surface of the printed part in the form of molten droplet transfer. The overlapping of multiple swing forms makes the heat transfer more uniform during the printing process and the printing shape more stable, thereby realizing arc swing arc printing.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A printing apparatus for additive manufacturing, comprising a connecting frame (1), characterized in that: The connecting frame (1) is fixedly connected to the front and rear inner sides of a rotating seat (2), and the rotating seat (2) is rotatably connected to a rotating shaft (3). The connecting frame (1) is provided with a swing amplitude adjustment mechanism (4) on the top inner side, and a printing mechanism (5) is provided at the bottom of the swing amplitude adjustment mechanism (4). The swing amplitude adjustment mechanism (4) includes a swing component (41) and an amplitude adjustment component (42), wherein the amplitude adjustment component (42) is disposed outside the swing component (41); The swing assembly (41) includes a fixed plate (411), which is fixedly connected to the inner top of the connecting frame (1). A motor (412) is fixedly connected to the back of the fixed plate (411). A rotating frame (413) is fixedly connected to the output end of the motor (412). A rotating sleeve (414) is fixedly connected to the outside of the rotating shaft (3). A slider (415) is slidably connected to the inside of the rotating sleeve (414).

2. The additive manufacturing printing apparatus according to claim 1, characterized in that: The rotating sleeve (414) has a groove at the corresponding position of the slider (415), and the slider (415) is slidably connected in the groove.

3. The additive manufacturing printing apparatus according to claim 1, characterized in that: The amplitude adjustment component (42) includes a sliding frame (421), which is slidably connected to the inside of the rotating frame (413). A connecting cylinder (422) is fixedly connected to the front of the sliding frame (421). A rotating rod (423) is rotatably connected inside the sliding frame (421). A connecting rod (424) is rotatably connected to both ends of the rotating rod (423). A locking block (425) is rotatably connected to the end of the connecting rod (424) away from the rotating rod (423). A spring (426) is fixedly connected between the locking block (425) and the sliding frame (421). A locking button (427) is fixedly connected to the front of the rotating rod (423).

4. The additive manufacturing printing apparatus according to claim 3, characterized in that: The connecting cylinder (422) has a hole at the corresponding position of the button (427), and the button (427) is rotatably connected in the hole.

5. The additive manufacturing printing apparatus according to claim 3, characterized in that: The rotating frame (413) has multiple slots on its inner side, and the card block (425) is inserted into the slot, and the slider (415) is rotatably connected to the outside of the connecting cylinder (422).

6. The additive manufacturing printing apparatus according to claim 1, characterized in that: The printing mechanism (5) includes a connecting plate (51), which is fixedly connected to the bottom of the rotating sleeve (414). A bidirectional screw (52) is rotatably connected inside the connecting plate (51). A clamping plate (54) is threadedly connected to the outside of the bidirectional screw (52). A sliding column (53) is fixedly connected between the connecting plates (51). A chuck (55) abuts between the clamping plates (54). A welding torch (56) is fixedly connected to the bottom of the chuck (55). A protective gas nozzle (57) is fixedly connected to the bottom of the welding torch (56). A welding wire (58) is provided inside the welding torch (56).

7. The additive manufacturing printing apparatus according to claim 6, characterized in that: The clamping plate (54) has a groove at the corresponding position of the sliding column (53), and the clamping plate (54) is slidably connected to the outside of the sliding column (53).

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