CN115533127A - 一种环形机匣类制件激光选区熔化增材制造装置 - Google Patents
一种环形机匣类制件激光选区熔化增材制造装置 Download PDFInfo
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Abstract
本发明公开了一种环形机匣类制件激光选区熔化增材制造装置,属于3D打印技术领域,包括可旋转的成形缸,成形缸内设有环形的成型舱,成型舱的内设置有可升降调节的成形基板,并形成成型舱的底面,成型舱随着成形缸旋转轨迹的正上方设置有激光器与落粉通道,落粉通道为漏斗型结构,且落粉通道的下端口边缘固定有刮刀,刮刀与成型舱的上端口水平平齐。该环形机匣类制件激光选区熔化增材制造装置,能够连续不间断打印成形,省去了铺粉时间,采用单激光打印烧结时,不存在激光搭接区域,避免了单激光覆盖区域受限,而无法成形大尺寸零件的问题,且提供了一种全新的激光选区熔化增材制造成形方案,可实现工程化应用,具有较高的商业价值。
Description
技术领域
本发明属于3D打印技术领域,尤其涉及一种环形机匣类制件激光选区熔化增材制造装置。
背景技术
随着航空航天、军工装备的发展,对装备制造业提出更高要求。传统的激光选区熔化增材制造技术采用刮刀进行逐层铺粉,打印过程可分为“铺粉-激光烧结-成形缸下降-粉缸上升-铺粉”,重复上述步骤直到零件打印结束,具体可参照图1所示的原理。因此,激光覆盖范围应为成形平面的全幅面,且零件过大时,采用的大尺寸激光选区熔化成形含有多个激光器,涉及多激光搭接问题,搭接区域的力学性能相对于非搭接区域会稍有下降。
同时,传统激光选区熔化成形工艺在经历“铺粉-激光烧结-成形缸下降-粉缸上升-铺粉”过程时,除激光烧结的阶段外,其他阶段耗费打印成形时间较多。且传统工艺打印大尺寸零件时,需准备大批量粉末原材料,粉末填充于零件四周,耗粉量大。
为此,我们提出来一种环形机匣类制件激光选区熔化增材制造装置。
发明内容
本发明的目的是为了解决上述现有技术中的问题,而提出的一种环形机匣类制件激光选区熔化增材制造装置。
为了实现上述目的,本发明采用了如下技术方案:
一种环形机匣类制件激光选区熔化增材制造装置,包括可旋转的成形缸,所述成形缸内设有环形的成型舱,所述成型舱的内设置有可升降调节的成形基板,并形成所述成型舱的底面,所述成型舱随着所述成形缸旋转轨迹的正上方设置有激光器与落粉通道,所述落粉通道为漏斗型结构,且所述落粉通道的下端口边缘固定有刮刀,所述刮刀与所述成型舱的上端口水平平齐。
作为进一步的优选方案,所述成形缸的外围安装有齿环,并配合有第一伺服电机,所述第一伺服电机的输出端固定有驱动齿轮,所述驱动齿轮与所述齿环啮合传动。
作为进一步的优选方案,所述成形缸内底部安装有多个滚珠丝杠,多个所述滚珠丝杠的顶端共同与所述成形基板连接,所述滚珠丝杠的下端均固定有第二伺服电机。
作为进一步的优选方案,所述滚珠丝杠至少设置有四个。
作为进一步的优选方案,所述激光器与所述落粉通道的位置固定,并在所述成形缸转动时,相对于所述成形缸内成型舱的上端口转动。
作为进一步的优选方案,所述激光器、落粉通道以及刮刀均设置有一个。
作为进一步的优选方案,所述激光器、落粉通道以及刮刀均设置有多个,并沿所述成形缸的成型舱上端口均匀分布。
综上所述,本发明的技术效果和优点:
该环形机匣类制件激光选区熔化增材制造装置,得益于成形缸与其内环形设置的成型舱,可以实现连续不间断打印成形,省去了铺粉时间,采用单激光打印烧结时,不存在激光搭接区域,避免了单激光覆盖区域受限,无法成形大尺寸零件的问题。
该环形机匣类制件激光选区熔化增材制造装置,在打印环形机匣类零件时中间区域不需要填充粉末,有效地解决了耗粉量大的问题,提供了一种全新的激光选区熔化增材制造成形方案,可实现工程化应用,具有较高的商业价值。
该环形机匣类制件激光选区熔化增材制造装置,通过激光选区熔化技术与旋转成形舱激光联动成形方案组合,从而能够降低打印大尺寸零部件成形风险,品质更稳定可靠,单激光小成形幅面即可实现超大环形件打印成形的解决方案。理论上来说,大型环形机匣类零件的径向尺寸差值不超过单激光覆盖范围均可打印成形,本申请的打印成形方案解决了全行业的一大痛点,可实现工程化应用。
附图说明
图1为现有技术中传统激光选区熔化原理示意图;
图2为本发明的结构示意图;
图3为本发明的俯视示意图;
图4为本发明的多工位实施例的结构示意图。
图中:1、成形缸;101、齿环;2、成形基板;3、激光器;4、落粉通道;5、刮刀;6、第一伺服电机;601、驱动齿轮;7、滚珠丝杠;8、第二伺服电机。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。
参照图2与图3,一种环形机匣类制件激光选区熔化增材制造装置,包括可旋转的成形缸1,具体实施时,所述成形缸1的外围安装有齿环101,并配合有第一伺服电机6,所述第一伺服电机6的输出端固定有驱动齿轮601,所述驱动齿轮601与所述齿环101啮合传动,使得第一伺服电机6启动时,能够通过驱动齿轮601与齿环101的啮合来带动成形缸1进行转动。
而成形缸1内设有环形的成型舱,所述成型舱内设置有成形基板2,成形基板2形成所述成型舱的底面,且所述成形缸1内底部安装有多个滚珠丝杠7,多个所述滚珠丝杠7的顶端共同与所述成形基板2连接,所述滚珠丝杠7的下端均固定有第二伺服电机8,使得第二伺服电机8启动后,能够通过滚珠丝杠7来带动成形缸1内的成形基板2进行升降活动,具体实施时,本实施例中,滚珠丝杠7至少设置有四个。
同时,成形缸1内成型舱能够随着所述成形缸1进行旋转,而旋转轨迹的正上方设置有激光器3与落粉通道4,所述激光器3与所述落粉通道4的位置固定,并在所述成形缸1转动时,相对于所述成形缸1内成型舱的上端口转动。且所述落粉通道4为漏斗型结构,所述落粉通道4的下端口边缘固定有刮刀5,所述刮刀5与所述成型舱的上端口水平平齐,因此,在成形缸1进行旋转过程中,能够利用落粉通道4来向成形缸1的成型舱内均匀铺粉,并利用刮刀5来对铺粉过程中凸起的粉堆进行刮平,使其均匀铺展,以保证打印效果。
具体实施时,如图2所示,该实施例一中,上述激光器3、落粉通道4以及刮刀5均设置有一个,为该装置的单工位方案,而如图4所示,该实施例二中,上述激光器3、落粉通道4以及刮刀5均设置有多个,并沿所述成形缸1的成型舱上端口均匀分布,为该装置的多工位方案,相较于单工位方案,效率更高。
值得注意的是,本装置所适用的成型材料的选择,包括制备金属、非金属材料,如铜、铁、镍、钛、钨、钼、铝及其合金、陶瓷、尼龙、树脂等。而本装置所打印零件结构虽然适用于环形机匣类零件,但不仅仅限于环形件,还能够在环形基板范围内可打印任何结构,也可实现多部件同炉批量打印成形。
工作原理:该环形机匣类制件激光选区熔化增材制造装置,使用时,第一伺服电机6通过驱动齿轮601与齿环101的啮合传动能够带动成形缸1整体转动,并在转动过程中,可配合落粉通道4来向成形缸1内的成型舱内进行铺粉,落粉能够在成形基板2的表面铺展一层薄薄的粉末,此时,激光器3出光并开始打印烧结粉末表层,而成形缸1在旋转的同时,还可启动第二伺服电机8来通过滚珠丝杠7带动成形基板2进行缓慢下降。
同时,把控第一伺服电机6与第二伺服电机8的配合,使得对于单工位(一个激光器3工作,如图2)设备,成形缸1内的成型舱转动一圈则成形基板2下降一个层厚,而对于多工位(多个激光器3同时工作,如图4)设备,成形缸1转动一圈则基板下降多个层厚,从而能够显著提高打印效率。因此,保证上述激光器3在工作的同时,利用成形缸1的旋转与成形基板2的下降形成配合,从而能够实现不间断连续打印成形,直到零件逐层打印结束,使用效果好。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种环形机匣类制件激光选区熔化增材制造装置,包括可旋转的成形缸(1),其特征在于,所述成形缸(1)内设有环形的成型舱,所述成型舱的内设置有可升降调节的成形基板(2),并形成所述成型舱的底面,所述成型舱随着所述成形缸(1)旋转轨迹的正上方设置有激光器(3)与落粉通道(4),所述落粉通道(4)为漏斗型结构,且所述落粉通道(4)的下端口边缘固定有刮刀(5),所述刮刀(5)与所述成型舱的上端口水平平齐。
2.根据权利要求1所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述成形缸(1)的外围安装有齿环(101),并配合有第一伺服电机(6),所述第一伺服电机(6)的输出端固定有驱动齿轮(601),所述驱动齿轮(601)与所述齿环(101)啮合传动。
3.根据权利要求1所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述成形缸(1)内底部安装有多个滚珠丝杠(7),多个所述滚珠丝杠(7)的顶端共同与所述成形基板(2)连接,所述滚珠丝杠(7)的下端均固定有第二伺服电机(8)。
4.根据权利要求3所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述滚珠丝杠(7)至少设置有四个。
5.根据权利要求1所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述激光器(3)与所述落粉通道(4)的位置固定,并在所述成形缸(1)转动时,相对于所述成形缸(1)内成型舱的上端口转动。
6.根据权利要求5所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述激光器(3)、落粉通道(4)以及刮刀(5)均设置有一个。
7.根据权利要求5所述的一种环形机匣类制件激光选区熔化增材制造装置,其特征在于,所述激光器(3)、落粉通道(4)以及刮刀(5)均设置有多个,并沿所述成形缸(1)的成型舱上端口均匀分布。
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