Multi-angle self-adjusting wire feeding device based on double-wire GTAW electric arc additive manufacturing
A technology of additive manufacturing and wire feeding device, which is applied in the direction of manufacturing tools, arc welding equipment, and process efficiency improvement, etc., can solve the problem of inability to adjust the horizontal angle of the wire feeding nozzle, etc., and achieve beautiful appearance and excellent performance of the deposited layer. Effect
Pending Publication Date: 2022-05-27
NANJING UNIV OF TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The current wire feeding equipment cannot adjust the wire feeding speed in real time according to the surface topography during a single additive process
[0007] To sum up, most of the current dual-filament GTAW additive manufacturing wire feeding devices cannot adjust the horizontal angle of the two wire feeding nozzles horizontally.
Method used
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[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0034] like Figure 1-4 As shown, a multi-angle self-adjusting wire feeding device based on double-wire GTAW arc additive manufacturing includes a circular guide rail 1 fastened to a GTAW welding torch 11, and a bracket for erecting two wire feeding nozzles 9. The bracket Including cross bar 2 and vertical bar 4. There are also fixed pins 3 and guide rods 12 on the cross bar 2.
[0035] The mechanism also contains a belt transmission system, the transmission system includes the first synchronous wheel 5 and the second synchronous wheel 7 in the cross bar 1 and the synchronous belt 6 therein, and the stepping motor 8 controls the rotation of the synchronous wheel to drive the synchronous belt. 6 movements.
[0036]In addition, the laser vision system 10 and a control system are also included. The control system includes a PLC controller, and ...
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The invention discloses a multi-angle self-adjusting wire feeding device based on double-wire GTAW electric arc additive manufacturing. The multi-angle self-adjusting wire feeding device comprises a circular guide rail, a transverse rod, a fixing pin, a vertical rod, a first synchronous wheel, a synchronous belt, a second synchronous wheel, a stepping motor, a wire feeding nozzle, a laser vision system, a GTAW welding gun, a guide rod and a control system. The clamping degree between the two wire feeding nozzles can be adjusted, in addition, in the additive manufacturing process, the surface of a welding seam can be recognized through a laser vision system, the wire feeding speed is increased at the concave position of the surface, and the wire feeding speed is reduced at the convex position of the surface, so that a deposition layer is flat, the electric arc additive manufacturing morphology is easily achieved, and the welding quality is improved. And a guarantee is provided for the quality of additive manufacturing.
Description
Technical field: [0001] The invention relates to the field of wire feeding fixtures for GTAW arc additive manufacturing, in particular to a dual-wire GTAW arc additive manufacturing wire feeding device that can adjust the angle between wire feed nozzles and can achieve smooth surface topography of additive components through feedback adjustment. Background technique [0002] Arc additive manufacturing technology is a composite heat source using arc heat and resistance heat to melt metal raw materials. Through small molten pool and micro-metallurgical rapid solidification technology, parts with certain shapes and sizes are stacked layer by layer to achieve high density and high New forming technology for performance components. Compared with laser and electron beam additive manufacturing technologies, arc additive manufacturing has high deposition rate, low manufacturing cost and insensitivity to metal materials, so it is highly valued at home and abroad. [0003] Among them...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23K9/04B23K9/095B23K9/133B23K9/173
CPCB23K9/04B23K9/133B23K9/0956B23K9/173Y02P10/25
Inventor 王健张炜辰朱凯李明轩朱晓磊陆晓峰
Owner NANJING UNIV OF TECH