CN118768715B - Fixtures for Additive Manufacturing - Google Patents
Fixtures for Additive Manufacturing Download PDFInfo
- Publication number
- CN118768715B CN118768715B CN202411280175.2A CN202411280175A CN118768715B CN 118768715 B CN118768715 B CN 118768715B CN 202411280175 A CN202411280175 A CN 202411280175A CN 118768715 B CN118768715 B CN 118768715B
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- China
- Prior art keywords
- substrate
- fixing plate
- plate
- additive manufacturing
- bottom plate
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/1215—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
本发明属于搅拌摩擦焊接增材领域，具体公开了一种用于增材制造的固定工装，用于增材制造的固定工装，包括：基板固定板，基板固定板上设有基板安装位，基板安装位包括底板和多个限位部，限位部与底板的边沿相连并向上延伸，多个限位部沿水平方向上间隔设置，以在两个限位部间形成排水槽；台面，基板固定板可拆卸的安装于台面，台面上设有冷却喷头，冷却喷头朝向底板。本发明相对于现有技术的好处在于，一方面节省了原料，提高了原料的利用率，减少了原料的浪费；另一方面简化了制造工艺，可以一步成型，省略了切除余量的部分，既节省了时间，又降低了损坏负极柱的概率。
The present invention belongs to the field of stir friction welding additive manufacturing, and specifically discloses a fixed tool for additive manufacturing, which includes: a substrate fixing plate, a substrate mounting position is provided on the substrate fixing plate, the substrate mounting position includes a bottom plate and a plurality of limiting parts, the limiting parts are connected to the edge of the bottom plate and extend upward, and the plurality of limiting parts are arranged at intervals in the horizontal direction to form a drainage groove between two limiting parts; a table, the substrate fixing plate is detachably mounted on the table, and a cooling nozzle is provided on the table, and the cooling nozzle faces the bottom plate. The advantage of the present invention over the prior art is that, on the one hand, it saves raw materials, improves the utilization rate of raw materials, and reduces the waste of raw materials; on the other hand, it simplifies the manufacturing process, can be formed in one step, and omits the part of cutting the excess, which saves time and reduces the probability of damaging the negative pole.
Description
Technical Field
The invention belongs to the technical field of friction stir material increase, and particularly relates to a fixing tool for material increase manufacturing.
Background
In the prior art, the manufacturing process of the anode stem is generally to process a metal material into the anode stem by extrusion, stretching or cold heading, etc., and after forming, it may be necessary to remove an excessive portion of the anode stem, such as a boss margin, etc., which may be accomplished by a cutting device. As shown in fig. 4, in the conventional method for manufacturing a negative electrode column, a layer of deposition (the deposition includes the negative electrode column 02 and the cutting allowance 03 in fig. 4) is firstly laid on the substrate 01, and then a part of the cutting allowance 03 is removed by cutting and other manners, so as to finally obtain the negative electrode column. However, the method is complex in steps, complex in process and high in cutting precision, otherwise, the negative electrode column can be damaged, and the cut allowance is wasted.
Friction Stir Additive Manufacturing (FSAM) is a 3D printing technique developed based on the friction stir welding principle. The stirring pin, the additive raw material and the stirring friction of the connecting piece are utilized to generate heat, the materials at the connecting part are softened, and the materials are connected together through axial pressure. The electrode manufacturing by the friction stir additive process can omit the process of cutting the part, simplify the steps and avoid waste, but the prior art does not have related manufacturing processes and lacks a fixed tool suitable for the friction stir additive process.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to propose a fixture for additive manufacturing.
The fixing tool for additive manufacturing is characterized by comprising a substrate fixing plate, a table board and a cooling spray head, wherein a substrate installation position is arranged on the substrate fixing plate, the substrate installation position comprises a bottom plate and a plurality of limiting parts, the limiting parts are connected with the edge of the bottom plate and extend upwards, the limiting parts are arranged at intervals along the horizontal direction to form a drainage groove between the two limiting parts, the substrate fixing plate is detachably arranged on the table board, and the cooling spray head faces the bottom plate.
Compared with the prior art, the invention has the advantages that the manufacturing of the electrode negative pole column is carried out through the friction stir material adding process, so that on one hand, raw materials are saved, the utilization rate of the raw materials is improved, the waste of the raw materials is reduced, on the other hand, the manufacturing process is simplified, the one-step forming is realized, the part of cutting off the allowance is omitted, the time is saved, and the probability of damaging the negative pole column is reduced. And the setting of fixed frock provides the manufacturing space for friction stir vibration material disk.
According to the embodiment of the invention, the substrate fixing plate further comprises a water guide surface, wherein the water guide surface is positioned below the bottom plate in the vertical direction, an included angle is formed between the extending direction of the water guide surface and the horizontal direction, and the water guide surface is positioned at one side of the drainage groove, which is away from the bottom plate.
According to the embodiment of the invention, the substrate mounting positions are multiple, and the multiple substrate mounting positions are arranged on the substrate fixing plate at intervals.
According to the embodiment of the invention, the edge of the table top is provided with the water baffle which extends upwards, and the water baffle is arranged around the substrate fixing plate so as to form a closed space around the substrate fixing plate.
According to the embodiment of the invention, the device further comprises a lifting ring, wherein the lifting ring is connected with the table top and is positioned on one side of the water baffle, which is away from the substrate fixing plate.
According to the embodiment of the invention, the upper end of the water baffle is lower than the bottom plate in the vertical direction.
According to the embodiment of the invention, the substrate fixing plate is provided with the grip, and the grip is connected with the side wall of the substrate fixing plate.
According to the embodiment of the invention, the number of the two grippers is two, and the two grippers are respectively arranged on the two opposite side walls of the substrate fixing plate.
According to the embodiment of the invention, the heating device is further included, and the heating surface of the heating device is attached to the bottom plate.
According to the embodiment of the invention, the side, away from the bottom plate, of the substrate fixing plate is provided with the mounting groove which is recessed towards the direction close to the bottom plate, and the heating device is mounted in the mounting groove.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an electrode fixing tool in an embodiment of the invention;
FIG. 2 is a schematic view of a substrate mounting position of an electrode fixing tool according to an embodiment of the present invention;
FIG. 3 is a schematic view of an electrode manufacturing substrate according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of an electrode manufacturing substrate in the prior art.
Reference numerals:
the fixture comprises a fixture 10, a fixture base 11, a water baffle 12, a substrate fixing plate 13, a water guide surface 131, a substrate mounting position 132, a substrate groove 1321, a drainage groove 1322, a grip 133, a fixing clamp 14, a lifting ring 15, a substrate 01, a negative pole column 02, a cutting allowance 03, a shaft shoulder 04, a screw 05, wires 06 and a stirring pin 07.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the prior art, the manufacturing process of the anode stem is generally to process a metal material into the anode stem by extrusion, stretching or cold heading, etc., and after forming, it may be necessary to remove an excessive portion of the anode stem, such as a boss margin, etc., which may be accomplished by a cutting device. As shown in fig. 4, in the conventional method for manufacturing a negative electrode column, a layer of deposition (the deposition includes the negative electrode column 02 and the cutting allowance 03 in fig. 4) is firstly laid on the substrate 01, and then a part of the cutting allowance 03 is removed by cutting and other manners, so as to finally obtain the negative electrode column. However, the method is complex in steps, complex in process and high in cutting precision, otherwise, the negative electrode column can be damaged, and the cut allowance is wasted.
In order to solve the above technical problems, a fixing tool 10 for additive manufacturing according to an embodiment of the present invention is described below with reference to fig. 1 to 4, and includes a substrate fixing plate 13, a substrate mounting position 132 is provided on the substrate fixing plate 13, the substrate mounting position 132 includes a bottom plate and a plurality of limiting portions, the limiting portions are connected to an edge of the bottom plate and extend upward, the plurality of limiting portions are disposed at intervals along a horizontal direction to form a drain tank 1322 between the two limiting portions, and a table board, the substrate fixing plate 13 is detachably mounted on the table board, and a cooling spray head is provided on the table board and faces the bottom plate. The base plate 01 for material adding is arranged on the base plate mounting position 132 and is matched and fixed with the base plate fixing plate 13, the base plate mounting position 132 provides material adding space for the base plate 01, the base plate mounting position 132 is suitable for being configured into a shape matched with the structure of the base plate 01, and therefore the base plate 01 can be fixed, and the base plate 01 is prevented from shifting or shaking in the friction stir material adding process. In some embodiments, the substrate securing plate 13 is removably mounted to the tooling base 11, as in the example shown in fig. 1. The base plate 01 is fixed through the limit part, and the limit part is configured to be matched with the structure of the base plate 01. The plurality of limiting parts can firmly fix the substrate 01 at the substrate mounting position 132, so that the substrate 01 is prevented from moving or shaking in the friction stir material adding process, and the deposition quality is affected.
The cooling spray head faces the bottom plate of the substrate mounting position 132 and is used for spraying water to cool the substrate 01 in the friction stir material adding stage. Therefore, the rapid cooling and solidification effects can be achieved, and the water spray cooling can rapidly reduce the temperature of the material adding region, so that the material adding part is rapidly solidified. This helps to maintain stability of the additive region, avoiding excessive softening or deformation of the material at high temperatures. And residual stresses may be generated inside the material during friction stir additive due to localized heating and rapid cooling. The water spray cooling can control the cooling rate more accurately, so that the size and the distribution of residual stress are reduced, and the stability and the durability of the additive connecting structure are improved.
The water draining groove 1322 is arranged, so that water at the substrate mounting position 132 can be smoothly drained, cooling liquid or water is prevented from remaining at the substrate mounting position 132, friction stir material increase is affected, and in the material increase manufacturing process requiring high-precision positioning or operation, water remaining can lead to inaccurate positioning, so that deposition quality or manufacturing precision is affected. The plurality of limiting portions define a substrate slot 1321 on the substrate mounting location 132 for receiving a substrate.
According to an embodiment of the present invention, the substrate fixing plate 13 further includes a water guiding surface 131, the water guiding surface 131 is located below the bottom plate in a vertical direction, an extending direction of the water guiding surface 131 forms an included angle with a horizontal direction, and the water guiding surface 131 is located at a side of the drain groove 1322 facing away from the bottom plate. The substrate fixing plate 13 is provided with a groove, the bottom surface of the groove is formed into a water guide surface 131, an included angle is formed between the extending direction of the water guide surface and the horizontal direction, the water guide surface 131 is formed into an inclined surface, one side of the groove is provided with no side wall for water outlet, the height of one side of the water guide surface 131, which is close to the side wall, is lowest, the groove can accommodate a single substrate mounting position or a plurality of substrate mounting positions 132, and the substrate mounting positions 132 are arranged on the water guide surface 131. Thus, when the cooling shower head sprays water to cool the substrate mounting position 132, the residual water flows out along the water guide surface 131 and is not deposited on the substrate fixing plate 13.
According to one embodiment of the present invention, the substrate mounting sites 132 are plural, and the plural substrate mounting sites 132 are disposed on the substrate fixing plate 13 at intervals. The multi-station design allows for simultaneous deposition on multiple substrate mounting sites 132 during friction stir additive. Or when the substrate 01 on one substrate mounting location 132 is being deposited, the substrate 01 on the other substrate mounting location 132 may be ready for deposition, reducing latency and conversion time. Therefore, the multi-station design can greatly improve the production efficiency.
According to one embodiment of the invention, the edge of the table top of the tooling base 11 is provided with a water baffle 12 extending upwards, and the water baffle 12 is arranged around the substrate fixing plate 13 so as to form a closed and enclosed space around the substrate fixing plate 13. The breakwater 12 is arranged at the edge of the table top and used for blocking water flowing out from the periphery of the table top, and the breakwater 12 is arranged around the substrate fixing plate 13 so as to form a closed space around the substrate fixing plate 13. The tooling base 11 is also provided with a water outlet, so that water sprayed by the cooling spray nozzle can be discharged in a concentrated manner, and as the heating device is arranged below the substrate fixing plate 13, if the water sprayed by the cooling spray nozzle flows in a random manner, the heating device or other parts are not affected, and the water baffle 12 is arranged, so that the water can be prevented from flowing at will, and the concentrated treatment is facilitated.
According to one embodiment of the invention, the upper end of the water deflector 12 is lower than the floor in the vertical direction. Too much water is prevented from being intercepted by the water deflector 12, and residues accumulate on the tool surface, so that the liquid level rises above the height of the substrate mounting location 132.
According to an embodiment of the invention, the fixture 10 further comprises a lifting ring 15, wherein the lifting ring 15 is connected to the table top and is located at a side of the water deflector 12 facing away from the substrate fixing plate 13. During friction stir additive manufacturing, tools may need to be moved between different work areas or devices. The lifting ring 15 is used as a connecting point of lifting equipment, so that the lifting and moving of the tool can be conveniently realized, the difficulty and risk of manual carrying are avoided, and the working efficiency and safety are improved.
According to an embodiment of the present invention, the substrate fixing plate 13 is provided with a grip 133, and the grip 133 is connected to a sidewall of the substrate fixing plate 13. The base plate fixed plate 13 is fixed on the tool base 11 through the fixed clamp 14, when the material addition is needed, the base plate fixed plate 13 can be fixed on the tool base 11 through the fixed clamp 14, and when the material addition is not needed, the fixed clamp 14 can be opened to take down the base plate fixed plate 13. That is, the substrate fixing plate 13 can be detached, and the operator can stably control the substrate fixing plate 13 through the grip 133, thereby avoiding a safety accident caused by an improper operation. The presence of the grip 133 may greatly reduce the operational risk, especially in case frequent movements or adjustments of the substrate holding plate 13 are required.
According to one embodiment of the present invention, the number of the grip handles 133 is two, and the two grip handles 133 are respectively provided at two opposite sidewalls of the substrate fixing plate 13. The two fingers 133 are not symmetrically positioned but are generally diagonally positioned, and the fingers 133 provide more uniform support and tension when positioned diagonally. This arrangement ensures that the substrate fixing plate 13 is supported in a balanced manner when it is moved or adjusted, thereby avoiding deformation or damage due to uneven stress. This stability is critical to ensure accuracy and quality in friction stir additive processes.
According to an embodiment of the present invention, the fixing tool 10 further includes a heating device, and a heat generating surface of the heating device is attached to the bottom plate. The heating device is used for heating the substrate 01 and the deposition material during friction stir material increase, for example, the substrate is used as a copper material, the material increase is used as an aluminum material, the generation of aluminum-copper compounds can be improved, the aluminum-copper connection strength is improved, the material can be further softened and reaches a certain plastic state, and the plastic state enables the stirring pin to be easily stirred and mixed in the material, and is favorable for realizing uniform material increase of the material, and the quality and performance of a product are ensured. The appropriate heating temperature helps to promote the bonding between the materials. In friction stir additive manufacturing, the pin, the additive material, generate frictional heat on the surface of the substrate material, softening the material and reaching the temperature required for connection. The connection mode can avoid the defects of hot cracks, air holes and the like possibly occurring in the traditional material adding method, and improves the connection quality and stability of the product. On the other hand, by arranging the heating device, the stirring friction time can be shortened, the working efficiency is improved, and the substrate 01 and the deposition material are plasticized and fused as fast as possible.
According to one embodiment of the invention, the side of the substrate fixing plate 13 facing away from the base plate is provided with a mounting groove recessed in a direction approaching the base plate, and the heating device is mounted in the mounting groove. Thereby, the heating device can reduce the occupied space as much as possible, and can be attached to the substrate fixing plate 13 as much as possible, thereby improving the heating effect. And is disposed below the substrate fixing plate 13, not affected by the coolant or water, and is convenient.
According to an embodiment of the present invention, referring to fig. 3, the material adding component includes a shaft shoulder 04, a screw rod 05 and a stirring pin 07, the screw rod 05 is disposed inside the shaft shoulder 04, and is used for cutting, friction extrusion and conveying the wire 06, the wire 06 is cut into particles, the stacked particles are conveyed to the surface of the substrate to generate friction stir with the substrate to form a deposit, a feed inlet is formed on the side wall of the shaft shoulder 04, and the wire 06 enters the shaft shoulder 04 through the feed inlet. A stirring pin 07 is provided at the bottom of the screw 05 for further stirring the substrate material and the deposition material. The bottom of the screw 05 may be provided with a stirring pin 07 or may be provided with no stirring pin 07, and is not limited herein. The advantage of the stirring pin 07 is that the stirring pin 07 generates heat with the material in the friction stir additive manufacturing process, and mechanically stirs and softens the material, so that the vertical flow of the material is promoted, and the mixing degree of the softened material is increased. The advantage of no stirring pin 07 is that the risk of pin breakage is avoided in the process of material addition, the service life of the material addition part is prolonged, and the process cost is reduced. Can be selected according to the needs.
The manufacturing method of the electrode negative pole column is realized by adopting a friction stir material adding process, so that raw materials are saved, the utilization rate of the raw materials is improved, the waste of the raw materials is reduced, the manufacturing process is simplified, the one-step forming is realized, the part of cutting off the allowance is omitted, the time is saved, and the probability of damaging the negative pole column is reduced. The fixed tooling 10 provides manufacturing space for friction stir additive.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411280175.2A CN118768715B (en) | 2024-09-12 | 2024-09-12 | Fixtures for Additive Manufacturing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411280175.2A CN118768715B (en) | 2024-09-12 | 2024-09-12 | Fixtures for Additive Manufacturing |
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| Publication Number | Publication Date |
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| CN118768715A CN118768715A (en) | 2024-10-15 |
| CN118768715B true CN118768715B (en) | 2024-12-24 |
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| CN202411280175.2A Active CN118768715B (en) | 2024-09-12 | 2024-09-12 | Fixtures for Additive Manufacturing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118789095B (en) * | 2024-09-12 | 2024-12-17 | 安徽万宇机械设备科技有限公司 | Fixed tool for manufacturing electrode based on friction stir additive and electrode production method |
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| CN101073853A (en) * | 2007-07-16 | 2007-11-21 | 侯贤德 | Method for agitating, fricting and welding cooling friction head and heat-connecting material |
| CN103639632A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | Tool structure for reference positioning of large welding part |
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| CN202097530U (en) * | 2011-05-03 | 2012-01-04 | 天津天海同步科技股份有限公司 | Fixture for auxiliary box synchronizer low stop cone welding device |
| CN107160029B (en) * | 2017-07-12 | 2022-12-02 | 山东大学 | An additional heat source assisted friction stir welding method and device |
| KR102030431B1 (en) * | 2018-12-04 | 2019-10-10 | 선문대학교 산학협력단 | Friction solid state welding/joining and cladding device supplying filler by roller |
| CN109604808B (en) * | 2018-12-11 | 2020-10-09 | 东北大学 | A friction stir additive manufacturing device and method applying cooling |
| EP3666422A1 (en) * | 2018-12-12 | 2020-06-17 | BAE SYSTEMS plc | Substrate and fixture system for use in additive manufacturing |
| CN211516524U (en) * | 2019-12-18 | 2020-09-18 | 无锡佳龙换热器股份有限公司 | Hoisting type assembly welding tool |
| CN113134674B (en) * | 2021-03-11 | 2022-07-08 | 哈尔滨工业大学 | Auxiliary heating and chilling combined stirring friction material increasing device and method |
| CN216966794U (en) * | 2022-01-27 | 2022-07-15 | 深圳爱仕特科技有限公司 | Welding jig |
| CN115351401B (en) * | 2022-08-30 | 2023-11-10 | 鞍钢股份有限公司 | A welding clamping device for drop weight test specimens and its use method |
| CN117900615A (en) * | 2023-02-14 | 2024-04-19 | 黄山学院 | A kind of equipment for friction stir additive manufacturing of aluminum alloy powder |
| CN220612785U (en) * | 2023-06-01 | 2024-03-19 | 楚能新能源股份有限公司 | Positioning fixture for welding battery cell and system for welding battery cell |
| CN220782245U (en) * | 2023-07-14 | 2024-04-16 | 广东横琴澳质研科技发展有限公司 | Cooling device and solid-state material adding equipment with same |
| CN220560777U (en) * | 2023-07-18 | 2024-03-08 | 珠海格力电子元器件有限公司 | Welding jig |
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| CN101073853A (en) * | 2007-07-16 | 2007-11-21 | 侯贤德 | Method for agitating, fricting and welding cooling friction head and heat-connecting material |
| CN103639632A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | Tool structure for reference positioning of large welding part |
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| CN118768715A (en) | 2024-10-15 |
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