CN112518073A - Automatic wire changing device of arc fuse metal printer - Google Patents
Automatic wire changing device of arc fuse metal printer Download PDFInfo
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- CN112518073A CN112518073A CN202011161595.0A CN202011161595A CN112518073A CN 112518073 A CN112518073 A CN 112518073A CN 202011161595 A CN202011161595 A CN 202011161595A CN 112518073 A CN112518073 A CN 112518073A
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- metal
- spray head
- automatic wire
- function
- nozzle
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- 239000002184 metal Substances 0.000 title claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 43
- 238000007639 printing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 abstract description 10
- 239000000654 additive Substances 0.000 abstract description 9
- 230000000996 additive effect Effects 0.000 abstract description 9
- 239000002905 metal composite material Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000012778 molding material Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
Abstract
The invention designs an automatic wire changing device of an arc fuse wire metal printer, which comprises 4 metal spray heads, a spray head platform, 4 spray head clamping parts and 4 pairs of customized plate springs, wherein the spray head groups are jointly installed to form a spray head group shown in the figure. Each spray head is connected with the fixed metal raw material and is uniformly controlled by the numerical control system. The nozzle supporting platform designed by the invention has the function of driving each nozzle to realize numerical control rotation; the metal spray heads are matched with the clamping parts and the customized plate springs, so that the function of switching the metal spray heads between the working state and the hanging state is realized; the two functions are mutually matched to realize the automatic wire changing function of the device. Therefore, the device can complete the additive manufacturing process of the multi-metal composite material, and has great product manufacturing potential.
Description
Technical Field
The invention belongs to the technical field of metal additive manufacturing, and particularly relates to a design scheme of an automatic wire changing device of an arc fuse metal printer.
Background
The electric arc fuse wire additive manufacturing technology is characterized in that electric arcs are used as heat sources, welding wires are melted, and a numerical control system controls the melting wires to perform layer-by-layer stacking molding of materials, so that product parts are formed finally. The technology is mostly based on a cold metal transition welding technology (CMT technology), and the main technical process is as follows: the generation and the extinction of electric arc are controlled by a digital welding control system, so that pulse type welding wire conveying is realized; after the molten drops drop from the welding wire, the numerical control system increases the welding current again and further sends the welding wire forward; after that, the welding arc is regenerated again, and a new round of welding is performed. The pulsed wire feed of this technique has great potential in additive manufacturing.
The existing metal 3D printing technology which is widely applied and mature in technology is usually in a single material form, and additive manufacturing of a multi-metal composite material is not achieved. The single-material-form metal printer has the advantages of easy realization of a numerical control system, simple structural design and the like; but the simple technology greatly limits the product manufacturing capability of the technology, so that the technology is forbidden in a plurality of multi-metal composite material product projects. However, the multi-metal composite material has good mechanical properties such as strength and hardness, and also has excellent physical and chemical properties such as wear resistance and corrosion resistance, and has wide application requirements in various industries. Therefore, additive manufacturing techniques for printing multi-metal composite materials are in the forefront.
Disclosure of Invention
In view of the above problems and the related technologies, an object of the present invention is to provide a design method for an automatic wire-changing device of an arc fuse metal printer, so as to implement a printing manufacturing process of a multi-metal composite material product, thereby obtaining a multi-metal 3D printed product with good performance and capable of meeting requirements of production and application.
The technical scheme of the invention comprises the aspects of structural design, automatic wire changing of the spray head group, forming principle and process and the like, and the detailed explanation of each aspect is as follows.
Regarding the structural design aspect, the arc fuse metal printer is provided with 4 spray heads and 4 CMT welding machines which are distributed in a ring shape to form a spray head group. The 4 spray heads are connected with respective raw materials in a fixed matching mode, and different raw materials are matched with different CMT welding machines. In the aspect of a movement structure, the working platform realizes the function of Z-axis movement adjustment through a motor and a transmission shaft, and moves up and down in the forming process through computer numerical control. Similarly, the movement of the nozzle group is realized by the matching of a motor and a transmission shaft, the X-axis direction is provided with the motor and two transmission shafts which are symmetrical left and right, and the Y-axis direction is provided with the motor and the transmission shaft; the double transmission shafts of the X shaft and the single transmission shafts of the Y shaft have dependent connection relation, namely when the spray head moves in the Y shaft direction, only the single motor is needed to drive the single transmission shafts in the Y shaft direction to operate, and when the spray head moves in the X shaft direction, the motor and the double transmission shafts in the X shaft direction operate, and simultaneously, the transmission shafts of the Y shaft are correspondingly driven. Such structural design divides the worker clearly, and each mechanism's operation condition is clear and conflict-free, can also reserve simultaneously enough big working space, provides the powerful guarantee for the printing process is normal to go on in succession.
Regarding the aspect of automatic wire replacement of the nozzle group, the automatic wire replacement structure of the nozzle group has the rotating replacement function of 4 nozzles. The automatic wire replacing structure is provided with a spray head platform, the platform is provided with 4 spray head mounting positions, and each spray head mounting position is provided with a customized plate spring and a clamping part and is used for matching with an up-and-down movement control mechanism to realize the conversion of the spray head in a working state and a hanging state. In the forming process, only one spray head is used for printing, the other 3 spray heads are in a hanging state, after one working spray head finishes a stroke, the control mechanism is used for hanging the working spray head upwards, then the spray head platform rotates to finish the rotary replacement of the spray head, then the control mechanism presses the other spray head downwards to enable the other spray head to enter the working state, and the rest is done in this way to finish a metal printing layer with multiple raw materials; and printing layer by the Z-axis movement of the working platform to finally obtain the product. Therefore, the printer only adopts one set of numerical control system to control the movement of one working spray head in the printing process, wherein the automatic wire changing device of the spray head group is used for switching the working spray heads, thereby realizing the additive manufacturing process of the multi-metal composite material; and the moving printing process is that the moving printing is carried out by connecting the spray head platform, the 4 spray heads and the spray head up-down moving control mechanism.
Regarding the forming principle and process, the 4-nozzle CMT printer performs additive manufacturing forming by controlling an arc to continuously generate metal droplets, wherein the properties of the molten droplets require corresponding support structures to perform auxiliary forming. Therefore, the raw material of one of the 4 nozzles is used as the support material, and the other nozzles are used as the main material for product formation. All the nozzles are matched with each other and printed layer by layer under the control of a numerical control system, and finally a finished product is obtained, which is the basic forming principle and process of the invention.
The invention has the following obvious advantages: 1. the automatic rotation wire changing of 4 spray heads is realized, the matching and printing forming are carried out, and the printing requirements of a plurality of complex product projects can be met; 2. one metal raw material is used for supporting various metal raw materials for forming, the manufacturing process of the product is stable, and the feasibility is strong; 3. the obtained product has high strength and hardness, good wear resistance and corrosion resistance, excellent mechanical property and physical and chemical properties, and can meet the requirements of various product items; 4. the structure is clear, the motion of each mechanism is clear, and a larger working space is reserved for the product additive manufacturing process.
Drawings
Fig. 1 is a schematic view of a metal showerhead designed according to the present invention.
FIG. 2 is a schematic view of a showerhead platform designed according to the present invention.
FIG. 3 is a schematic view of a showerhead holding feature designed according to the present invention.
Fig. 4 is a schematic view of a customized leaf spring designed according to the present invention.
Fig. 5 is a schematic view of a showerhead assembly designed according to the present invention.
Detailed Description
As shown in figure 5, the invention comprises 4 metal spray heads (1), a spray head platform (2), 4 spray head clamping parts (3) and 4 pairs of customized plate springs which are jointly installed to form a spray head group as shown in the figure. The sprayer positioned at the upper right corner is pressed down to enter a working state and belongs to a working sprayer, and the rest 3 sprayers are clamped by the clamping part and are in a hanging state. The overall printing process is as follows: firstly, computer modeling is carried out, after the modeling is finished, model data are analyzed into numerical control data by a computer and transmitted to a numerical control system, the numerical control system operates to control a motor and a transmission shaft so as to control a working platform to move in the Z-axis direction, and meanwhile, a nozzle group which is mainly designed in the invention is controlled to print and move in the X-axis direction and the Y-axis direction, so that the printing process is finished step by step.
In the printing process of the product with 4 metal raw materials, the specific implementation mode of the invention is as follows: firstly, the nozzle group rotates to enable the nozzle connected with the supporting material to reach a working position, then the nozzle is pressed downwards to be in a working state, and the first layer of printing of the supporting material is completed under the control of a numerical control system; then, the numerical control system controls the up-down moving mechanism to pull the working nozzle upwards and change the working nozzle into a hanging state; then, the nozzle group rotates again to enable one nozzle connected with the molding material to reach a working position, the nozzle is pressed down to enter a working state by the nozzle up-and-down movement control mechanism, and then the movement is controlled by the numerical control system to finish the first layer printing of the molding material; the printing process of the other two molding materials is the same. After the first layer of numerical control is completed, the working platform obtains a printing layer containing 4 metal raw materials, the numerical control system controls the working platform to move downwards to print and form the second layer of the product, and by analogy, the printer completes the printing manufacturing process layer by layer, and finally the 3D printing finished product containing 4 metal raw materials is obtained. Therefore, the automatic wire changing function realized by the device is realized by the mutual matching of the numerical control rotation function of the spray head supporting platform and the state conversion function of the metal spray head.
Claims (5)
1. An automatic wire-changing device of an arc fuse metal printer is characterized by comprising:
(1) 4 metal nozzles which realize the automatic wire changing and printing functions are matched;
(2) the nozzle supporting platform with the numerical control rotating function is used for supporting the metal nozzle and driving the nozzle to realize the numerical control rotating function;
(3) the clamping part and the customized plate spring are used in cooperation with the spray head supporting platform and are connected through welding, so that the metal spray heads can realize the conversion function between a hanging state and a working state in the automatic wire changing and forming process;
(4) the numerical control rotation function of the spray head supporting platform is matched with the switching function of the spray head in a hanging state and a working state, so that the automatic wire changing function of the device is formed.
2. The metal nozzle as claimed in claim 1, wherein the nozzle is generally in the shape of a cylinder fitted with a cone; the outer side of the cylinder is provided with a protruding structure used for clamping, hanging, working and moving up and down, and the protruding structure comprises a double-cone structure and a semi-cone matched circular platform structure.
3. The clamping component and the customized plate spring as claimed in claim 1, wherein the clamping component and the customized plate spring are connected by welding, and are configured to match with the shape structure of the metal nozzle so as to realize the conversion between the hanging state and the working state of 4 metal nozzles during the automatic wire-changing printing process.
4. The customized plate spring according to claim 1, wherein the paired use can have sufficient elasticity and elastic limit, and needs to have a long service life to meet the requirement of frequent switching of the state of the head in the automatic wire-changing printing.
5. The showerhead support platform of claim 1, wherein the platform has corresponding parts engaging recesses and shaft holes for connecting the rotary drive shafts to achieve a numerically controlled rotation; and the design of a bulge used for supporting and matching the customized plate spring and other part holes for connection are also adopted, so that the requirement of realizing the automatic rotary wire changing function of the invention is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161595.0A CN112518073A (en) | 2020-10-27 | 2020-10-27 | Automatic wire changing device of arc fuse metal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161595.0A CN112518073A (en) | 2020-10-27 | 2020-10-27 | Automatic wire changing device of arc fuse metal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112518073A true CN112518073A (en) | 2021-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011161595.0A Withdrawn CN112518073A (en) | 2020-10-27 | 2020-10-27 | Automatic wire changing device of arc fuse metal printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112518073A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209732Y (en) * | 2008-02-29 | 2009-03-18 | 松下电化住宅设备机器(杭州)有限公司 | Fastener for pipe joint |
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| CN105058789A (en) * | 2015-07-28 | 2015-11-18 | 华中科技大学 | 3D printing device suitable for multi-material workpieces |
| CN205467383U (en) * | 2016-01-16 | 2016-08-17 | 北京工业大学 | Many shower nozzles mechanism based on fused deposition type 3D printer |
| CN106264796A (en) * | 2016-10-19 | 2017-01-04 | 泉州装备制造研究所 | A kind of 3D print system based on multi-shaft interlocked control and machine vision metrology |
| CN107138829A (en) * | 2017-06-16 | 2017-09-08 | 华中科技大学 | A kind of many electric arcs suitable for high-performance metal component cooperate with increasing material manufacturing method |
| CN107263858A (en) * | 2017-07-03 | 2017-10-20 | 华中科技大学 | A kind of heterogeneous many material increasing material manufacturing systems |
| CN107813050A (en) * | 2017-11-23 | 2018-03-20 | 中国科学院重庆绿色智能技术研究院 | A kind of multi-laser beam 3D printing head for metal melting rapid shaping |
| CN207711381U (en) * | 2017-11-14 | 2018-08-10 | 重庆德固科技有限公司 | The printing head device of 3D printer |
| DE102017005426A1 (en) * | 2017-06-11 | 2018-12-13 | Christian Schmid | Machine and process for additive and subtractive production in one clamping |
| CN210649235U (en) * | 2019-09-06 | 2020-06-02 | 天津市顺泽采油设备有限公司 | Electric welding machine capable of quickly clamping workpieces with different sizes |
| CN210830961U (en) * | 2019-08-26 | 2020-06-23 | 宁波诗兰姆汽车零部件有限公司 | Pipe joint |
| CN211730244U (en) * | 2019-12-17 | 2020-10-23 | 安徽创融增材制造技术有限公司 | Many shower nozzles auto-change over device of 3d printer |
-
2020
- 2020-10-27 CN CN202011161595.0A patent/CN112518073A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209732Y (en) * | 2008-02-29 | 2009-03-18 | 松下电化住宅设备机器(杭州)有限公司 | Fastener for pipe joint |
| CN104921840A (en) * | 2015-06-08 | 2015-09-23 | 浙江大学 | Single-sprayer multi-source biological 3D (three-dimension) printing device and method thereof |
| CN105058789A (en) * | 2015-07-28 | 2015-11-18 | 华中科技大学 | 3D printing device suitable for multi-material workpieces |
| CN205467383U (en) * | 2016-01-16 | 2016-08-17 | 北京工业大学 | Many shower nozzles mechanism based on fused deposition type 3D printer |
| CN106264796A (en) * | 2016-10-19 | 2017-01-04 | 泉州装备制造研究所 | A kind of 3D print system based on multi-shaft interlocked control and machine vision metrology |
| DE102017005426A1 (en) * | 2017-06-11 | 2018-12-13 | Christian Schmid | Machine and process for additive and subtractive production in one clamping |
| CN107138829A (en) * | 2017-06-16 | 2017-09-08 | 华中科技大学 | A kind of many electric arcs suitable for high-performance metal component cooperate with increasing material manufacturing method |
| CN107263858A (en) * | 2017-07-03 | 2017-10-20 | 华中科技大学 | A kind of heterogeneous many material increasing material manufacturing systems |
| CN207711381U (en) * | 2017-11-14 | 2018-08-10 | 重庆德固科技有限公司 | The printing head device of 3D printer |
| CN107813050A (en) * | 2017-11-23 | 2018-03-20 | 中国科学院重庆绿色智能技术研究院 | A kind of multi-laser beam 3D printing head for metal melting rapid shaping |
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| CN210649235U (en) * | 2019-09-06 | 2020-06-02 | 天津市顺泽采油设备有限公司 | Electric welding machine capable of quickly clamping workpieces with different sizes |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210319 |
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| WW01 | Invention patent application withdrawn after publication |