CN209452993U - A device for butt laser welding of CFRTP and metal - Google Patents
A device for butt laser welding of CFRTP and metal Download PDFInfo
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- CN209452993U CN209452993U CN201822150727.4U CN201822150727U CN209452993U CN 209452993 U CN209452993 U CN 209452993U CN 201822150727 U CN201822150727 U CN 201822150727U CN 209452993 U CN209452993 U CN 209452993U
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Abstract
本实用新型公开了一种用于CFRTP与金属对接激光焊的装置，涉及焊接技术领域；包括CFRTP、金属件、树脂材料、激光束、支撑架以及气缸；所述的CFRTP和金属件均设置在支撑架上，所述的树脂材料设置在CFRTP的待焊面与金属件的待焊面之间，且CFRTP的待焊面与金属件的待焊面相对接；所述的气缸设置于支撑架的一侧，且该气缸的气缸杆与所述的CFRTP或金属件相连接，用于在焊接过程中沿CFRTP或金属件的对接方向，向对接的面提供压力；所述的激光束聚焦在金属件临近树脂材料的一侧，以加热金属件，使树脂材料熔化；本实用新型的有益效果是：提高了焊接强度，实现了无其他加固材料的辅助作用下CFRTP与金属之间的高强度对接焊，工艺流程简单，接头质量减轻。
The utility model discloses a device for butt laser welding of CFRTP and metal, which relates to the field of welding technology; it includes CFRTP, metal parts, resin materials, laser beams, support frames and cylinders; the CFRTP and metal parts are all arranged on On the support frame, the resin material is arranged between the surface to be welded of CFRTP and the surface to be welded of the metal piece, and the surface to be welded of CFRTP is opposite to the surface to be welded of the metal piece; the cylinder is arranged on the surface of the support frame One side, and the cylinder rod of the cylinder is connected with the CFRTP or the metal piece, and is used to provide pressure to the butt surface along the butt joint direction of the CFRTP or the metal piece during the welding process; the laser beam is focused on the metal The side of the piece near the resin material is used to heat the metal piece to melt the resin material; the beneficial effect of the utility model is: the welding strength is improved, and the high-strength butt joint between CFRTP and the metal is realized without the auxiliary action of other reinforcement materials Welding, the process flow is simple, and the quality of the joint is reduced.
Description
技术领域technical field
本实用新型涉及焊接技术领域，更具体的说，本实用新型涉及一种用于CFRTP与金属对接激光焊的装置。The utility model relates to the field of welding technology, more specifically, the utility model relates to a device for butt laser welding of CFRTP and metal.
背景技术Background technique
碳纤维热塑性复合材料(CFRTP)具有比强度高、耐腐蚀、抗疲劳、耐热性好等特点，是轻量化制造的重要材料，在航空航天、新能源汽车领域应用前景广阔。Carbon fiber thermoplastic composite (CFRTP) has the characteristics of high specific strength, corrosion resistance, fatigue resistance, and good heat resistance. It is an important material for lightweight manufacturing and has broad application prospects in the fields of aerospace and new energy vehicles.
在实际应用中，往往需要实现CFRTP与金属材料之间的连接。当前，热塑性复合材料与轻质合金复合构件主要采用铆接、螺接等机械连接形式。这种方式一般需要在CFRTP上预置安装孔，安装孔的制备方法一般采用机械制孔，这种方法会造成复合材料层间撕裂、纤维断裂、孔周开裂等问题，金属螺栓连接后在接头处容易形成应力集中，造成结构件的疲劳失效。胶接具有应力集中小、疲劳性能好、抗腐蚀、耐磨损、质量轻等优势，但是，胶结面临着一些问题，如环境适应性差，接头容易老化，异种材料胶接容易形成较大残余应力等。光焊接具有焊接速度快，焊接强度高，振动应力小，工艺简单，不钻孔、不用胶，接头中没有异质材料，耐腐蚀，结构质量小等优势。In practical applications, it is often necessary to realize the connection between CFRTP and metal materials. At present, thermoplastic composite materials and light alloy composite components are mainly connected by mechanical connections such as riveting and screwing. This method generally needs to pre-install mounting holes on CFRTP. The preparation method of mounting holes is generally mechanical drilling. This method will cause problems such as tearing between layers of composite materials, fiber breakage, and cracking around holes. Stress concentration is easy to form at the joint, resulting in fatigue failure of structural parts. Adhesive bonding has the advantages of small stress concentration, good fatigue performance, corrosion resistance, wear resistance, and light weight. However, bonding faces some problems, such as poor environmental adaptability, easy aging of joints, and large residual stress easily formed in the bonding of dissimilar materials. Wait. Optical welding has the advantages of fast welding speed, high welding strength, small vibration stress, simple process, no drilling, no glue, no foreign materials in the joint, corrosion resistance, and small structural quality.
激光连接技术具有速度快、强度高、振动应力、工艺灵活等特点，在CFRTP与金属材料连接上较胶结、机械连接等技术具有优势。目前，一般采用激光直接焊接技术实现CFRTP与金属材料的连接，连接方式也主要为搭接焊，对于某些特定需求，需要实现二者之间的对接焊。与搭接焊相比，对接焊由于焊接材料不重合，因此焊接强度低，焊接不牢固，造成焊接难度大。Laser connection technology has the characteristics of fast speed, high strength, vibration stress, and flexible process. It has advantages in the connection between CFRTP and metal materials compared with cementation and mechanical connection. At present, laser direct welding technology is generally used to realize the connection between CFRTP and metal materials, and the connection method is mainly lap welding. For some specific needs, butt welding between the two needs to be realized. Compared with lap welding, butt welding has low welding strength and weak welding due to the non-overlapping of welding materials, which makes welding difficult.
实用新型内容Utility model content
为了克服现有技术的不足，本实用新型提供一种用于CFRTP与金属对接激光焊的装置。In order to overcome the deficiencies of the prior art, the utility model provides a device for butt laser welding of CFRTP and metal.
本实用新型解决其技术问题所采用的技术方案是：一种用于CFRTP与金属对接激光焊的装置，其改进之处在于：包括CFRTP、金属件、树脂材料、激光束、支撑架以及气缸；The technical solution adopted by the utility model to solve the technical problem is: a device for laser welding of CFRTP and metal butt joint, the improvement of which is: including CFRTP, metal parts, resin material, laser beam, support frame and cylinder;
所述的CFRTP和金属件均设置在支撑架上，所述的树脂材料设置在CFRTP的待焊面与金属件的待焊面之间，且CFRTP的待焊面与金属件的待焊面相对接；Both the CFRTP and the metal parts are arranged on the support frame, the resin material is arranged between the surface to be welded of the CFRTP and the surface to be welded of the metal part, and the surface to be welded of the CFRTP is opposite to the surface to be welded of the metal part ;
所述的气缸设置于支撑架的一侧，且该气缸的气缸杆与所述的CFRTP或金属件相连接，用于在焊接过程中沿CFRTP或金属件的对接方向，向对接的面提供压力；The cylinder is arranged on one side of the support frame, and the cylinder rod of the cylinder is connected with the CFRTP or the metal piece, and is used to provide pressure to the butt surface along the butt joint direction of the CFRTP or metal piece during the welding process ;
所述的激光束聚焦在金属件临近树脂材料的一侧，以加热金属件，使树脂材料熔化。The laser beam is focused on the side of the metal piece adjacent to the resin material to heat the metal piece to melt the resin material.
在上述的结构中，所述的用于CFRTP与金属对接激光焊的装置还包括底座；In the above structure, the device for butt laser welding of CFRTP and metal also includes a base;
所述底座相对的两侧上设置有与之相垂直的竖向板，所述的气缸和支撑架分别固定在两个竖向板相对的内壁上。The opposite sides of the base are provided with vertical plates perpendicular thereto, and the cylinder and the support frame are respectively fixed on the inner walls opposite to the two vertical plates.
在上述的结构中，所述的树脂材料的材质为PPS、PA、PEEK、PE其中任意一种。In the above structure, the material of the resin material is any one of PPS, PA, PEEK and PE.
在上述的结构中，所述树脂材料的厚度在0.01～1mm之间。In the above structure, the thickness of the resin material is between 0.01mm and 1mm.
在上述的结构中，所述的金属件为不锈钢、碳钢、镀锌钢、铝合金、钛合金、镁合金、高温合金其中任意一种。In the above structure, the metal piece is any one of stainless steel, carbon steel, galvanized steel, aluminum alloy, titanium alloy, magnesium alloy, and superalloy.
本实用新型的有益效果是：与现有技术相比，本实用新型在金属侧进行激光聚焦，激光束在金属侧进行加热，由于热传导，热量传递至树脂材料，树脂材料受热熔化，冷却后将CFRTP与金属焊接在一起，提高了焊接强度，并且在该过程中，沿着对接方向施加一定外力，在外力作用下进一步提高了CFRTP与金属的焊接强度与结合力，实现了无其他加固材料的辅助作用下CFRTP与金属之间的高强度对接焊，工艺流程简单，接头质量减轻。The beneficial effects of the utility model are: compared with the prior art, the utility model performs laser focusing on the metal side, and the laser beam is heated on the metal side. Due to heat conduction, the heat is transferred to the resin material, and the resin material is heated and melted. CFRTP and metal are welded together to improve the welding strength, and in the process, a certain external force is applied along the butt direction, and the welding strength and bonding force between CFRTP and metal are further improved under the action of the external force, and no other reinforcement materials are realized. The high-strength butt welding between CFRTP and metal under the auxiliary effect has simple process and reduced joint quality.
附图说明Description of drawings
图1为本实用新型的一种用于CFRTP与金属对接激光焊的装置的原理示意图。Fig. 1 is a principle schematic diagram of a device for butt laser welding of CFRTP and metal according to the present invention.
图2为本实用新型的一种用于CFRTP与金属对接激光焊的装置的实施例图。Fig. 2 is a diagram of an embodiment of a device for butt laser welding of CFRTP and metal of the present invention.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.
以下将结合实施例和附图对本实用新型的构思、具体结构及产生的技术效果进行清楚、完整地描述，以充分地理解本实用新型的目的、特征和效果。显然，所描述的实施例只是本实用新型的一部分实施例，而不是全部实施例，基于本实用新型的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本实用新型保护的范围。另外，专利中涉及到的所有联接/连接关系，并非单指构件直接相接，而是指可根据具体实施情况，通过添加或减少联接辅件，来组成更优的联接结构。本实用新型创造中的各个技术特征，在不互相矛盾冲突的前提下可以交互组合。The idea, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without paying creative efforts, All belong to the protection scope of the utility model. In addition, all the connection/connection relationships involved in the patent do not simply refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. Each technical feature in the utility model creation can be combined interactively under the premise of not conflicting with each other.
实施例1Example 1
本实施例中，提供了一种用于CFRTP与金属对接激光焊的装置，如图2所示，包括CFRTP1、金属件2、底座5、支撑架6、气缸7、激光束4与树脂材料3。In this embodiment, a device for butt laser welding of CFRTP and metal is provided, as shown in Figure 2, including CFRTP1, metal parts 2, base 5, support frame 6, cylinder 7, laser beam 4 and resin material 3 .
底座5用于支撑整个装置。Base 5 is used to support the whole device.
支撑架6用于放置待焊接的CFRTP1与金属件2。The support frame 6 is used to place the CFRTP1 and the metal part 2 to be welded.
树脂材料3设置在CFRTP1的待焊面与金属件2的待焊面之间，并且CFRTP1的待焊面与金属件2的待焊面对接；本实施例中，气缸7的气缸杆连接CFRTP1，用于在焊接过程中沿着CFRTP1的对接方向，向对接面提供压力。Resin material 3 is arranged between the surface to be welded of CFRTP1 and the surface to be welded of metal part 2, and the surface to be welded of CFRTP1 is connected with the surface to be welded of metal part 2; in this embodiment, the cylinder rod of cylinder 7 is connected to CFRTP1 , used to provide pressure to the butt surface along the butt direction of CFRTP1 during the welding process.
本实施例中，如图1所示，所述的金属件为铝合金工件，利用该装置对CFRTP1与铝合金工件进行对接激光焊，具体如下：In the present embodiment, as shown in Figure 1, the metal parts are aluminum alloy workpieces, and the device is used to carry out butt laser welding of CFRTP1 and aluminum alloy workpieces, as follows:
(1)CFRTP1经表面织构化处理，铝合金工件2经表面打磨处理，将焊接的CFRTP1与铝合金工件2放置在支撑架6上，CFRTP1的待焊面与铝合金工件2的待焊面对接，并且在CFRTP1的待焊面与铝合金工件2的待焊面之间添加厚度为0.1mm的树脂材料PPS3，铝合金工件2的一端固定；(1) The surface of CFRTP1 is textured, the surface of aluminum alloy workpiece 2 is polished, and the welded CFRTP1 and aluminum alloy workpiece 2 are placed on the support frame 6. The surface to be welded of CFRTP1 and the surface to be welded of aluminum alloy workpiece 2 Butt joint, and add resin material PPS3 with a thickness of 0.1mm between the surface to be welded of CFRTP1 and the surface to be welded of aluminum alloy workpiece 2, and one end of aluminum alloy workpiece 2 is fixed;
(2)气缸7开启，沿着CFRTP1的对接方向，向对接面提供压力，激光束4加热铝合金工件2靠近填充树脂的一侧，通过热传导，树脂材料PPS3受热熔化，关闭激光束4，待熔化树脂冷却凝固后关闭气缸7，将CFRTP1与铝合金工件2对接焊在一起。(2) Cylinder 7 is opened, along the docking direction of CFRTP1, to provide pressure to the docking surface, laser beam 4 heats the side of the aluminum alloy workpiece 2 close to the resin filling, through heat conduction, the resin material PPS3 is heated and melted, and the laser beam 4 is turned off. After the molten resin is cooled and solidified, the cylinder 7 is closed, and the CFRTP1 and the aluminum alloy workpiece 2 are butt welded together.
实施例2Example 2
本实施例中，CFRTP与金属件的对接激光焊装置与实施例1基本相同，所不同的是，气缸连接于金属件，用于在焊接过程中沿着金属件的对接方向，向对接面提供压力。In this embodiment, the butt laser welding device of CFRTP and metal parts is basically the same as that of Embodiment 1, the difference is that the cylinder is connected to the metal parts, and is used to provide pressure.
本实施例中，所述的金属件为钛合金工件，利用该装置对CFRTP与钛合金工件进行对接激光焊，具体如下：In this embodiment, the metal part is a titanium alloy workpiece, and the device is used to carry out butt laser welding of CFRTP and titanium alloy workpiece, as follows:
(1)CFRTP经表面功能化处理，钛合金工件经表面打磨处理，将焊接的CFRTP与钛合金工件放置在支撑架上，CFRTP的待焊面与钛合金工件的待焊面对接，并且在CFRTP的待焊面与钛合金工件的待焊面之间添加厚度为1mm的树脂材料PEEK，CFRTP的一端固定；(1) The surface of CFRTP is functionalized, and the surface of the titanium alloy workpiece is polished. The welded CFRTP and titanium alloy workpiece are placed on the support frame, and the surface to be welded of CFRTP is connected to the surface to be welded of the titanium alloy workpiece. Add resin material PEEK with a thickness of 1mm between the surface to be welded of CFRTP and the surface to be welded of the titanium alloy workpiece, and one end of CFRTP is fixed;
(2)气缸开启，沿着钛合金的对接方向，向对接面提供压力，激光束加热钛合金工件靠近填充树脂的一侧，通过热传导，待树脂材料PEEK受热熔化，关闭激光束，待熔化树脂冷却凝固后关闭气缸，将CFRTP与钛合金工件对接焊在一起。(2) The cylinder is opened, along the direction of the titanium alloy butt joint, to provide pressure to the butt joint surface, the laser beam heats the side of the titanium alloy workpiece close to the resin filling, through heat conduction, the resin material PEEK is heated and melted, the laser beam is turned off, and the resin is to be melted After cooling and solidification, the cylinder is closed, and the CFRTP and the titanium alloy workpiece are butt welded together.
实施例3Example 3
本实施例中，CFRTP与金属的对接激光焊装置与实施例1基本相同，所不同的是，气缸分别连接于CFRTP和金属件，用于在焊接过程中沿着CFRTP、金属件的对接方向，向对接面提供压力。In this embodiment, the butt laser welding device between CFRTP and metal is basically the same as that in Embodiment 1, the difference is that the cylinders are respectively connected to CFRTP and metal parts, and are used to follow the butt joint direction of CFRTP and metal parts during the welding process. Apply pressure to the mating surface.
本实施例中，利用该装置对CFRTP与不锈钢工件进行对接激光焊，具体如下：In this embodiment, the device is used to carry out butt laser welding of CFRTP and stainless steel workpieces, as follows:
(1)CFRTP经表面功能化处理，不锈钢工件经表面打磨处理，将焊接的CFRTP与不锈钢工件放置在支撑架上，CFRTP的待焊面与不锈钢工件的待焊面对接，并且在CFRTP的待焊面与不锈钢工件的待焊面之间添加厚度为0.1mm的树脂材料PA；(1) The CFRTP surface is functionalized, the stainless steel workpiece is polished on the surface, the welded CFRTP and the stainless steel workpiece are placed on the support frame, the surface to be welded of the CFRTP is connected to the surface to be welded of the stainless steel workpiece, and Add resin material PA with a thickness of 0.1mm between the welding surface and the surface to be welded of the stainless steel workpiece;
(2)气缸开启，分别沿着CFRTP、不锈钢的对接方向，向对接面提供压力，激光束加热不锈钢工件靠近填充树脂的一侧，通过热传导，待树脂材料PA受热熔化，关闭激光束，待熔化树脂冷却凝固后关闭气缸，将CFRTP与不锈钢工件对接焊在一起。(2) The cylinder is opened, and the pressure is provided to the docking surface along the docking direction of CFRTP and stainless steel respectively. The laser beam heats the side of the stainless steel workpiece close to the resin filling. Through heat conduction, the resin material PA is heated and melted, and the laser beam is turned off to be melted. After the resin is cooled and solidified, the cylinder is closed, and the CFRTP and the stainless steel workpiece are butt welded together.
目前利用激光进行CFRTP与金属材料的连接都是利用搭接焊的原理实现的(例如专利申请201510014414.4利用搭接焊原理实现CFRTP之间的对接焊)，现有技术还没有激光直接对接焊的方案，专利申请201510014414.4中阐述的方案，是通过添加固定件的形式实现复合材料之间的焊接，本实用新型首次提出在不添加任何辅助材料的情况下，直接利用激光实现金属与复合材料之间的连接，接头质量减轻。At present, the connection between CFRTP and metal materials by laser is realized by the principle of lap welding (for example, patent application 201510014414.4 uses the principle of lap welding to realize butt welding between CFRTP), and there is no direct laser butt welding scheme in the prior art , the solution described in the patent application 201510014414.4 is to realize the welding between composite materials by adding fixing parts. The utility model proposes for the first time that without adding any auxiliary materials, the laser can be directly used to realize the welding between metal and composite materials. Connection, joint mass reduction.
与现有技术相比，本实用新型在金属侧进行激光聚焦，激光束在金属侧进行加热，由于热传导，热量传递至树脂材料，树脂材料受热熔化，冷却后将CFRTP与金属焊接在一起，提高了焊接强度，并且在该过程中，沿着对接方向施加一定外力，在外力作用下进一步提高了CFRTP与金属的焊接强度与结合力，实现了无其他加固材料的辅助作用下CFRTP与金属之间的高强度对接焊，工艺流程简单，接头质量减轻。Compared with the prior art, the utility model performs laser focusing on the metal side, and the laser beam is heated on the metal side. Due to heat conduction, the heat is transferred to the resin material, and the resin material is heated and melted. After cooling, the CFRTP and the metal are welded together to improve The welding strength is improved, and in the process, a certain external force is applied along the butt direction, and the welding strength and bonding force between CFRTP and metal are further improved under the action of external force, and the connection between CFRTP and metal is realized without the auxiliary action of other reinforcement materials. High-strength butt welding, the process is simple, and the quality of the joint is reduced.
以上是对本实用新型的较佳实施进行了具体说明，但本实用新型创造并不限于所述实施例，熟悉本领域的技术人员在不违背本实用新型精神的前提下还可做出种种的等同变形或替换，这些等同的变形或替换均包含在本申请权利要求所限定的范围内。The above is a specific description of the preferred implementation of the present utility model, but the utility model creation is not limited to the described embodiments, and those skilled in the art can also make various equivalents without violating the spirit of the present utility model. Modifications or replacements, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.
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