Three-dimensional sliding table for electric arc additive manufacturing

Abstract

The utility model discloses an electric arc additive manufacturing three-dimensional sliding table, which relates to the technical field of electric arc additive manufacturing and comprises a base, a first sliding table, a second sliding table and a third sliding table, the first sliding table is fixedly connected to the upper surface of the base, and driving mechanisms are arranged in the first sliding table, the second sliding table and the third sliding table. The driving mechanism comprises driving motors fixedly connected to the interiors of the first sliding table, the second sliding table and the third sliding table correspondingly, the fiber cloth is always blocked at openings in the upper portions of the first sliding table, the second sliding table and the third sliding table, and welding slag generated in the welding process of the arc welding gun and dust in air are prevented from falling on lead screws of the sliding tables; the situation that the motion performance that the whole three-dimensional sliding table drives an electric arc welding gun to move and weld is affected due to the fact that welding slag is attached and accumulated on the surface of the lead screw and in a thread gap and consequently the transmission efficiency is reduced is prevented, only welding slag and dust intercepted above fiber cloth need to be cleaned manually in the follow-up process, and the effect of protecting the whole electric arc welding three-dimensional sliding table is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric arc additive manufacturing technology, specifically to an electric arc additive manufacturing three-dimensional slide table. Background Technology

[0002] Arc additive manufacturing, also known as arc 3D metal printing or wire arc additive manufacturing, is a manufacturing method that uses an electric arc as a heat source to melt and deposit metal wires layer by layer to form three-dimensional parts. In the welding process of arc additive manufacturing, a three-dimensional slide table is usually used to drive the arc welding torch to move. A three-dimensional slide table is a mechanical device that can achieve precise linear motion in three-dimensional space (X, Y, Z axis directions) and is often used in fields such as automation equipment and processing and manufacturing.

[0003] During the welding process in arc additive manufacturing, weld slag may splatter onto the slide rails and lead screw of the 3D slide table. If not cleaned in time, the slag will gradually adhere to and accumulate on the surface of the lead screw and in the thread gaps. This increases the friction during lead screw movement, leading to reduced transmission efficiency and potentially affecting its motion accuracy. Over time, it will also wear down the surface of the lead screw, damaging its precision and smoothness, and consequently affecting the overall motion performance of the 3D slide table in moving the arc welding torch.

[0004] Therefore, in view of this, the present invention provides a three-dimensional slide table for arc additive manufacturing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an electric arc additive manufacturing three-dimensional slide table to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A three-dimensional sliding table for arc additive manufacturing includes a base, a first sliding table, a second sliding table, and a third sliding table. The first sliding table is fixedly connected to the upper surface of the base. Each of the first, second, and third sliding tables has a drive mechanism inside. Each drive mechanism includes a drive motor fixedly connected to the first, second, and third sliding tables respectively. A lead screw is fixedly connected to the output shaft of each drive motor, and a movable plate is threaded onto each lead screw. The second sliding table is fixedly connected to the movable plate inside the first sliding table, and the third sliding table is fixedly connected to... A movable plate is attached to the second slide, and a placement plate is fixedly connected to the movable plate on the third slide. An arc welding gun is snapped onto the placement plate. Protective mechanisms are provided on the outer sides of the first, second, and third slides. The protective mechanisms include three sets of winding drums, each set with two winding drums. Each of the first, second, and third slides has one set of winding drums. A support shaft is rotatably connected to the inner wall of each winding drum. Fiber cloth is wound around the outer surface of the support shaft. Movable grooves are provided on the inner walls of the first, second, and third slides.

[0008] Preferably, one end of the fiber cloth is fixedly connected to the support shaft, and a through groove is provided on the winding drum for the fiber cloth to pass through. The other end of the fiber cloth passes through the through groove and the moving groove and is fixedly connected to the outer wall of the adjacent moving plate. A spring is wound around the outer wall of each support shaft. There are three moving plates in total, and the three moving plates are slidably connected to the inside of the first slide, the second slide, and the third slide, respectively.

[0009] Preferably, one end of each spring is fixedly connected to a nearby support shaft, and the other end of each spring is fixedly connected to the inner wall of the winding drum.

[0010] Preferably, the placement plate has a slot for the insertion of an electric arc welding gun, and an electric push rod is fixedly connected to the placement plate. The electric push rod includes a fixed end and a telescopic end, and the telescopic end of the electric push rod is rotatably connected to two connecting rods.

[0011] Preferably, the placement plate has two limiting grooves, and an arc-shaped plate is slidably connected in each of the two limiting grooves.

[0012] Preferably, the ends of the two connecting rods away from the electric push rod are rotatably connected to the outer walls of the two arc-shaped plates, and rubber pads are fixedly connected to the inner walls of the two arc-shaped plates.

[0013] The three-dimensional slide table for arc additive manufacturing provided by this utility model has the following beneficial effects:

[0014] The fiber cloth is always used to seal the openings above the first, second, and third slides, preventing welding slag and dust from the air generated during the arc welding process from falling onto the lead screw of each slide. This prevents welding slag from adhering to and accumulating on the surface of the lead screw and in the thread gaps, which would reduce transmission efficiency and affect the motion performance of the entire three-dimensional slide moving the arc welding gun. Afterwards, manual cleaning of the welding slag and dust intercepted on the fiber cloth is all that is needed, thus protecting the entire three-dimensional arc welding slide.

[0015] By removing the rubber pads on the two curved plates from clamping the arc welding gun, the arc welding gun can be removed from the slot on the placement plate. The automatic clamping and release of the arc welding gun changes the existing sampling bolt and manual disassembly and installation method, saving the time of manually disassembling the arc welding gun. This allows staff to quickly repair and replace the arc welding gun, improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0019] Figure 4 This is a schematic diagram showing the installation of the lead screw, drive motor, and moving plate of this utility model.

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram of region B in the middle;

[0021] Figure 6 This is a schematic diagram showing the installation of the winding drum, fiber cloth, and moving plate of this utility model.

[0022] In the picture:

[0023] 1. Base; 2. First slide; 3. Second slide; 4. Third slide; 5. Moving plate; 51. Drive motor; 52. Lead screw; 6. Winding drum; 61. Support shaft; 62. Fiber cloth; 63. Spring; 64. Moving groove; 7. Placement plate; 71. Electric push rod; 72. Connecting rod; 73. Arc plate; 74. Limiting groove; 75. Rubber pad; 8. Arc welding gun. Detailed Implementation

[0024] Embodiments of this utility model:

[0025] Please see Figures 1 to 6A three-dimensional sliding table for arc additive manufacturing includes a base 1, a first sliding table 2, a second sliding table 3, and a third sliding table 4. The first sliding table 2 is fixedly connected to the upper surface of the base 1. The second sliding table 3 is located above the first sliding table 2, and the third sliding table 4 is located above the second sliding table 3. Each of the first sliding table 2, second sliding table 3, and third sliding table 4 is equipped with a drive mechanism. The drive mechanism includes drive motors 51 respectively fixedly connected to the first sliding table 2, second sliding table 3, and third sliding table 4. Each drive motor 51 is electrically connected to an external controller. A lead screw 52 is fixedly connected to the output shaft end of each drive motor 51. A movable plate 5 is threadedly connected to each lead screw 52. The second sliding table 3 is fixedly connected to the movable plate 5 inside the first sliding table 2, and the third sliding table 4 is fixedly connected to the movable plate 5 inside the second sliding table 3. A horizontal placement plate 7 is fixedly connected to the movable plate 5 on the third sliding table 4. An arc welding gun 8 is attached to plate 7. Protective mechanisms are provided on the first slide 2, second slide 3, and third slide 4. Each protective mechanism includes three sets of take-up drums 6, with two drums 6 in each set. The two take-up drums 6 are respectively located at both ends of the slide. Each of the first slide 2, second slide 3, and third slide 4 has one set of take-up drums 6. A support shaft 61 is rotatably connected to the inner wall of each take-up drum 6. A fiber cloth 62, woven from stainless steel fibers, is wound around the outer surface of the support shaft 61. Moving grooves 64 are provided on the inner walls of the first slide 2, second slide 3, and third slide 4. One end of the fiber cloth 62 is fixedly connected to the support shaft 61. A through groove is provided on the take-up drum 6, allowing the fiber cloth 62 to pass through. The other end of the fiber cloth 62 passes through the through groove and moves within the moving groove 64, and is fixedly connected to the outer wall of the adjacent moving plate 5. A spring 63 is wound around the outer wall of each support shaft 61.

[0026] There are three movable plates 5. The three movable plates 5 are slidably connected to the inside of the first slide table 2, the second slide table 3, and the third slide table 4 respectively. One end of each spring 63 is fixedly connected to the adjacent support shaft 61, and the other end of each spring 63 is fixedly connected to the inner wall of the winding drum 6.

[0027] The placement plate 7 has a slot for the electric arc welding gun 8 to enter. An electric push rod 71 is fixedly connected to the placement plate 7. The electric push rod 71 includes a fixed end and a telescopic end. The telescopic end of the electric push rod 71 is rotatably connected to two connecting rods 72. Two limiting grooves 74 are opened on the placement plate 7. Arc plates 73 are slidably connected in both limiting grooves 74. The ends of the two connecting rods 72 away from the electric push rod 71 are rotatably connected to the outer walls of the two arc plates 73. Rubber pads 75 are fixedly connected to the inner walls of the two arc plates 73.

[0028] The following is the complete working process and working principle of the above embodiments:

[0029] Initial state: The arc welding gun 8 is held and limited on the placement plate 7 by two arc plates 73 and rubber pads 75, and the fiber cloth 62 between the multiple support shafts 61 and the moving plate 5 is in a taut state.

[0030] When welding with the arc welding torch 8, the controller drives the drive motor 51 in the first slide 2, causing its output shaft to drive the lead screw 52 to rotate. The lead screw 52 drives the moving plate 5, which is threaded to it, to move horizontally. This causes the second slide 3 to move horizontally along the X-axis. The drive motor 51 in the second slide 3 drives the lead screw 52 to rotate, and the lead screw 52 drives the moving plate 5, which is threaded to it, to move horizontally along the Y-axis. The drive motor 51 in the third slide 4 drives the lead screw 52 to rotate, and the lead screw 52 drives the moving plate 5, which is threaded to it, to move vertically along the Z-axis. At the same time, it also causes the placement plate 7 and the arc welding torch 8 to move, thus allowing the arc welding torch 8 to move in three dimensions and achieve the welding work.

[0031] Furthermore, during the movement of the moving plate 5 inside the first slide 2, second slide 3, and third slide 4, the moving plate 5 will drive the corresponding fiber cloth 62 on both sides to move within the moving groove 64, causing the fiber cloth 62 to move out of the winding drum 6 and drive the corresponding support shaft 61 to rotate. The spring spring 63 will also contract accordingly, and the fiber cloth 62 on the other side of the moving plate 5 will be loosened. The corresponding spring spring 63 will rebound and reset, driving the support shaft 61 to rotate, so that the fiber cloth 62 is wound into the winding drum 6. Therefore, during the movement of the moving plate 5, it will pull the fiber cloth 62 on both sides. The fiber cloth 62 moves accordingly, always blocking the openings above the first slide 2, the second slide 3, and the third slide 4. This prevents welding slag and dust from the air generated during the welding process of the arc welding gun 8 from falling onto the lead screw 52 of each slide. It also prevents welding slag from adhering to and accumulating on the surface of the lead screw 52 and in the thread gaps, which would reduce transmission efficiency and affect the motion performance of the entire three-dimensional slide that drives the arc welding gun 8 to move and weld. Afterwards, manual cleaning of the welding slag and dust intercepted on the fiber cloth 62 is all that is needed. This effectively protects the entire three-dimensional arc welding slide.

[0032] It should be noted that since fiber cloth 62 is woven from stainless steel fibers, it has a temperature resistance range of 600℃~1200℃, excellent oxidation resistance and corrosion resistance, and also has a certain degree of flexibility, so it can be rolled up and stored.

[0033] Furthermore, if the arc welding torch 8 is damaged after prolonged use, or if welding slag accumulates on the nozzle, even if it is not completely blocked, it will affect the gas shielding effect and conductivity. Therefore, after each welding task, the relevant parts should be disassembled and the residue removed with a wire brush or special cleaning tool. When it is necessary to disassemble the arc welding torch 8, simply activate the electric push rod 71 to extend its telescopic end, which will drive the two connecting rods 72 to push the two arc plates 73 to slide away on the limiting groove 74. This will allow the rubber pads 75 on the two arc plates 73 to no longer clamp the arc welding torch 8. At this time, the arc welding torch 8 can be removed from the slot on the placement plate 7. The automatic clamping and releasing method of the sampling torch 8 changes the existing sampling bolt and manual disassembly and installation method, saving the time of manually disassembling the arc welding torch 8. This is conducive to the staff to quickly repair and replace the arc welding torch 8, improving maintenance efficiency.

[0034] It should be added that the parts of the electrical control components connected to the outside are not shown in the accompanying drawings of the specification, because such parts are not technical features of this solution, but are only common structures in the prior art. In actual use, there are external control components and material feeding parts of the arc welding gun 8. The completeness of this solution should not be judged by the lack of such related components.

[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional slide table for arc additive manufacturing, comprising a base (1), a first slide table (2), a second slide table (3), and a third slide table (4), characterized in that: The first slide (2) is fixedly connected to the upper surface of the base (1). The first slide (2), second slide (3), and third slide (4) are each equipped with a drive mechanism. Each drive mechanism includes a drive motor (51) fixedly connected to the first slide (2), second slide (3), and third slide (4), respectively. A lead screw (52) is fixedly connected to the output shaft end of each drive motor (51). A movable plate (5) is threaded onto each lead screw (52). The second slide (3) is fixedly connected to the movable plate (5) inside the first slide (2), and the third slide (4) is fixedly connected to the movable plate (5) inside the second slide (3). The third slide (4) is... A placement plate (7) is fixedly connected to the movable plate (5), and an arc welding gun (8) is snapped onto the placement plate (7). A protective mechanism is provided on the outside of the first slide (2), the second slide (3), and the third slide (4). The protective mechanism includes three sets of winding drums (6), each set having two winding drums (6). Each of the first slide (2), the second slide (3), and the third slide (4) has a set of winding drums (6). A support shaft (61) is rotatably connected to the inner wall of each winding drum (6). Fiber cloth (62) is wound around the outer surface of the support shaft (61). A moving groove (64) is opened on the inner wall of the first slide (2), the second slide (3), and the third slide (4).

2. The three-dimensional slide table for arc additive manufacturing according to claim 1, characterized in that: One end of the fiber cloth (62) is fixedly connected to the support shaft (61). The winding drum (6) has a through groove through which the fiber cloth (62) can pass. The other end of the fiber cloth (62) passes through the through groove and the moving groove (64) and is fixedly connected to the outer wall of the adjacent moving plate (5). The outer wall of each support shaft (61) is wound with a spring (63). There are three moving plates (5). The three moving plates (5) are slidably connected to the inside of the first slide (2), the second slide (3), and the third slide (4), respectively.

3. The three-dimensional slide table for arc additive manufacturing according to claim 1, characterized in that: One end of each spring (63) is fixedly connected to the adjacent support shaft (61), and the other end of each spring (63) is fixedly connected to the inner wall of the winding drum (6).

4. The three-dimensional slide table for arc additive manufacturing according to claim 1, characterized in that: The placement plate (7) has a slot for the electric arc welding gun (8) to enter. An electric push rod (71) is fixedly connected to the placement plate (7). The electric push rod (71) includes a fixed end and a telescopic end. The telescopic end of the electric push rod (71) is rotatably connected to two connecting rods (72).

5. The three-dimensional slide table for arc additive manufacturing according to claim 1, characterized in that: Two limiting grooves (74) are provided on the placement plate (7), and an arc plate (73) is slidably connected in both limiting grooves (74).

6. The three-dimensional slide table for arc additive manufacturing according to claim 1, characterized in that: The ends of the two connecting rods (72) away from the electric push rod (71) are rotatably connected to the outer walls of the two arc plates (73), and the inner walls of the two arc plates (73) are fixedly connected with rubber pads (75).

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