TWI696544B - Laminated manufacturing and processing machine - Google Patents

Abstract

A layered manufacturing and processing machine includes a stage and a layered manufacturing device. The layered manufacturing apparatus includes a material supply unit for transporting powder to the stage above, and a melting unit for melting the aforementioned powder into a deposited layer. The melting unit has a working gas path group for transporting inert gas, a cavity for collecting inert gas and powder and releasing powder relative to the stage, and a transferable plasma arc effect with the stage A melting gun, the aforementioned transfer plasma arc effect is generated at a voltage greater than 30 volts, and is used to melt the powder released from the cavity, so that two or more deposited layers are stacked on the stage to become the Layered body. In this way, when melting the powder released from the cavity, the heat can be concentrated on the injected powder instead of the existing deposition layer or workpiece, so that the molten metal can quickly solidify into the deposition layer without causing Sagging.

Description

Laminated manufacturing and processing machine

The invention relates to a layered manufacturing method, in particular to a layered manufacturing and processing machine.

Referring to FIG. 1, a printing device 1 disclosed in Patent No. M498668 of the Republic of China mainly includes a forming platform 11 carrying a workpiece, a powder spreading mechanism 12 spreading powder relative to the forming platform 11, and a laser Mechanism 13, and a forging mechanism 14. The laser mechanism 13 is used to melt the powder to form a sintered body. The forging mechanism 14 is used to forge the aforementioned sintered body to make the sintered body more compact.

However, the aforementioned forging method is easy to damage the sintered body or deform the sintered body, and because the sintered body is formed by stacking multiple layers of deposited layers, a forging nail is applied for each layer of deposited layer The disadvantage of time extension.

Therefore, the object of the present invention is to provide a build-up manufacturing and processing machine capable of improving the density between layers and reducing the process time.

Therefore, the layered manufacturing machine of the present invention is suitable for manufacturing a layered body. The layered manufacturing apparatus includes a stage and a layered manufacturing apparatus.

The layered manufacturing device includes a material supply unit for transferring powder to the stage above, and a melting unit for melting the powder into a deposited layer, the melting unit has a working gas path group for transferring inert gas , A cavity for collecting inert gas and powder and releasing powder relative to the stage, and a melting gun that produces a transferable plasma arc effect with the stage. The aforementioned transfer plasma arc effect is greater than It is generated under a no-load voltage of 30 volts and is used to melt the powder released from the cavity, so that two or more deposited layers are stacked on the stage to form the laminate.

The effect of the present invention is that when melting the powder released from the cavity, the heat can be concentrated on the injected powder instead of the existing deposition layer or workpiece, so that the molten metal can quickly solidify into a sink Stack up without sagging.

2: body

3: Carrier

31: Swing

32: Carrying Department

4: Multilayer manufacturing equipment

41: Material supply unit

42: Melting unit

421: Working gas circuit group

422: cavity

423: Melting gun

6: Drive

61: First drive unit

62: Second drive unit

63: Third drive unit

64: fourth drive unit

7: laminate

71: Sediment

X: X axis

Y: Y axis

Z: Z axis

Other features and functions of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic diagram illustrating a conventional printing disclosed in Patent Case No. M498668 of the Republic of China Apparatus; and FIG. 2 is a schematic diagram illustrating an embodiment of the laminated manufacturing processing machine of the present invention.

Referring to FIG. 2, an embodiment of the layered manufacturing and processing machine of the present invention includes a body 2, a stage 3, a layered manufacturing device 4, and a driving device 6.

The stage 3 has a swing portion 31 pivotally arranged on the body 2 and a carrying portion 32 provided on the swing portion 31.

The layered manufacturing device 4 includes a material supply unit 41 for transporting powder to above the carrying portion 32 of the stage 3, and a melting unit 42 for melting the powder into a deposited layer 71. In this embodiment, the melting unit 42 is a transferable plasma arc device, and has a working gas path group 421 for transporting inert gas, and a supporting portion 32 for collecting inert gas and powder and opposed to the stage 3 A cavity 422 from which the powder is released, and a melting gun 423 that generates an arc effect with the supporting portion 32 of the stage 3. The aforementioned transfer-type plasma arc effect is used to melt the powder released from the cavity 22, so that the melted powder falls on the stage 3 to become a layer of deposition, and more than two layers of deposition layer 71 are stacked on The laminate 7 is formed on the stage 3.

The driving device 6 includes a first driving unit 61 that drives the melting unit 42 to be displaced along an X-axis direction and a Y-axis direction, and a second driving unit 62 that drives the melting unit 42 to be displaced along a Z-axis direction, A third drive unit 63 that drives the swing portion 31 of the stage 3 to rotate around the X axis, and a fourth drive unit 64 that drives the carrier portion 32 of the stage 3 to rotate around the Z axis .

During processing, it is only necessary to control the first drive unit 61, the second drive unit 62, the third drive unit 63 and the fourth drive unit 64, so that the melting unit 42 can follow the X-axis direction and the Y-axis Direction, the Z-axis direction is displaced, and the swinging portion 31 of the stage 3 is rotated about the X-axis, and the bearing portion 32 of the stage 3 is rotated about the Z-axis, thereby, in the Scanning and filling is carried out on the bearing part 32, and several deposition layers 71 are stacked to form a layered body 7, or a workpiece (not shown) is provided on the bearing part 32, and a piece combined with the workpiece is formed on the workpiece Layered body 7.

It is worth noting that the transferable plasma arc effect of the melting unit 42 is generated at an unloaded voltage greater than 30 volts and cannot produce a keyhole phenomenon. Therefore, when melting the powder released from the cavity 22, The heat can be concentrated on the injected powder instead of the existing deposited layer 71 or workpiece (not shown), whereby the molten metal can quickly solidify into the deposited layer 71 without sagging.

Through the above description, the advantages of the foregoing embodiments can be summarized as follows: In the present invention, when melting the powder released from the cavity 422, the heat can be concentrated on the powder injected instead of the existing deposition layer 71 or On the workpiece, the molten metal can be quickly solidified into the deposited layer 71 without sagging, and the melting unit 42 using the transferable plasma arc equipment is lower in cost. For finished products with lower precision requirements, the The compactness and appearance of the laminate 7 can also meet the process requirements.

However, the above are only examples of the present invention, and the scope of implementation of the present invention cannot be limited by this, all the patent applications and patent specifications according to the present invention The simple equivalent changes and modifications made in the content are still covered by the patent of the present invention.

2‧‧‧Body

3‧‧‧ stage

31‧‧‧Swing

32‧‧‧Carrying Department

4‧‧‧Multilayer manufacturing device

41‧‧‧Material supply unit

42‧‧‧melting unit

6‧‧‧Drive device

61‧‧‧ First drive unit

62‧‧‧Second drive unit

63‧‧‧ Third drive unit

64‧‧‧ Fourth drive unit

7‧‧‧Layered body

71‧‧‧Sedimentary layer

421‧‧‧Working gas group

422‧‧‧cavity

423‧‧‧ melting gun

X‧‧‧X axis

Y‧‧‧Y axis

Z‧‧‧Z axis

Claims (4)

A layered manufacturing processing machine suitable for manufacturing a layered body. The layered manufacturing apparatus includes: a stage; and a layered manufacturing apparatus, including a material supply unit for transferring powder to the stage above, and for melting the aforementioned powder A melting unit that becomes a deposited layer, the melting unit has a working gas path group for conveying inert gas, a cavity for collecting inert gas and powder and releasing powder relative to the stage, and connected to the cavity A melting gun that generates a transferable plasma arc effect with the stage, the transferable plasma arc effect is generated under a no-load voltage greater than 30 volts, and is used to melt the release from the cavity With powder, two or more deposited layers are stacked on the stage to form the laminate. The laminated manufacturing processing machine according to claim 1, further comprising a first driving unit that drives the melting unit to be displaced in one X-axis direction and one Y-axis direction, respectively. The laminate manufacturing and processing machine according to claim 1, further comprising a second driving unit that drives the melting unit to be displaced in one Z-axis direction, respectively. The laminated manufacturing processing machine according to claim 1, further comprising a body and a third driving unit, and the stage has a swinging portion pivotally mounted on the body and a swinging portion disposed on the swinging portion The bearing part, the third driving unit drives the swing part to rotate around the X axis.

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