CN115384057A - A 3D printer based on SLA - Google Patents

Abstract

The invention discloses a 3D printer based on SLA, which belongs to the technical field of printers and comprises a shell, wherein a forming cavity is formed in the shell, and a first reflecting mechanism is arranged in the middle of one side of the inner wall of the forming cavity. The transverse reflector is arranged above the forming table and cannot be retracted, so that other structures of the forming cavity can be prevented from being overhauled and installed, in the reflecting process, the reflector can absorb part of laser energy, the temperature of the reflector is increased, the reflector is further deformed and lost, the mirror surface of the reflector is not flat due to deformation, and the reflecting precision of the reflector is reduced.

Description

Translated fromChinese

一种基于SLA的3D打印机A 3D printer based on SLA

技术领域technical field

本发明属于打印机技术领域，具体涉及一种基于SLA的3D打印机。The invention belongs to the technical field of printers, in particular to an SLA-based 3D printer.

背景技术Background technique

SLA是即立体光固化成型法，用特定波长与强度的激光聚焦到光固化材料表面，使之由点到线，由线到面顺序凝固，完成一个层面的绘图作业，然后升降台在垂直方向移动一个层片的高度，再固化另一个层面，这样层层叠加构成一个三维实体；SLA is the stereolithography molding method. Lasers with specific wavelength and intensity are focused on the surface of the light-curing material to solidify sequentially from point to line and from line to surface to complete a level of drawing work, and then the lifting table is vertically Move the height of one layer, and then solidify another layer, so that the layers are superimposed to form a three-dimensional entity;

SLA是最早实用化的快速成形技术，采用液态光敏树脂原料，其工艺过程是，首先通过CAD设计出三维实体模型，利用离散程序将模型进行切片处理，设计扫描路径，产生的数据将精确控制激光扫描器和升降台的运动；激光光束通过数控装置控制的扫描器，按设计的扫描路径照射到液态光敏树脂表面，使表面特定区域内的一层树脂固化后，当一层加工完毕后，就生成零件的一个截面；然后升降台下降一定距离，固化层上覆盖另一层液态树脂，再进行第二层扫描，第二固化层牢固地粘结在前一固化层上，这样一层层叠加而成三维工件原型，将原型从树脂中取出后，进行固化，再经打磨，然后电镀、喷漆或上色得到要求的产品；SLA is the earliest practical rapid prototyping technology. It uses liquid photosensitive resin raw materials. The process is to first design a three-dimensional solid model through CAD, use discrete programs to slice the model, and design the scanning path. The generated data will accurately control the laser. The movement of the scanner and the lifting platform; the laser beam passes through the scanner controlled by the numerical control device, and irradiates the surface of the liquid photosensitive resin according to the designed scanning path, so that after a layer of resin in a specific area of the surface is cured, when one layer is processed, it A section of the part is generated; then the lifting table is lowered for a certain distance, and the cured layer is covered with another layer of liquid resin, and then the second layer is scanned, and the second cured layer is firmly bonded to the previous cured layer, so that layers are superimposed A three-dimensional workpiece prototype is formed. After the prototype is taken out of the resin, it is cured, then polished, and then electroplated, painted or colored to obtain the required product;

SLA技术主要用于制造多种模具、模型等；还可以在原料中通过加入其它成分，用SLA原型模代替熔模精密铸造中的蜡模，SLA技术成形速度较快，精度较高，但由于树脂固化过程中产生收缩，不可避免地会产生应力或引起形变，因此开发收缩小、固化快、强度高的光敏材料是其发展趋势。SLA technology is mainly used to manufacture a variety of molds, models, etc.; it can also be added to the raw materials by adding other ingredients to replace the wax model in the investment casting precision casting with the SLA prototype model. The SLA technology has faster forming speed and higher precision, but due to Shrinkage during the curing process of the resin will inevitably cause stress or deformation. Therefore, it is the development trend to develop photosensitive materials with small shrinkage, fast curing and high strength.

现有基于SLA的3D打印机中横置的反射镜设置在成型台的上方，不可收回，从而会阻碍成型腔其他结构检修和安装，且在反射过程中，反射镜会吸收部分激光能量，使反射镜的温度上升，进而导致反射镜发生形变和损耗，而形变会导致反射镜的镜面不平整，进而使反射镜的反射精度下降，由此提出一种基于SLA的3D打印机。The horizontal reflector in the existing SLA-based 3D printer is set above the molding table and cannot be retracted, which will hinder the maintenance and installation of other structures in the molding cavity, and during the reflection process, the reflector will absorb part of the laser energy, making the reflection The temperature of the mirror rises, which will lead to deformation and loss of the mirror, and the deformation will cause the mirror surface of the mirror to be uneven, which will reduce the reflection accuracy of the mirror. Therefore, a 3D printer based on SLA is proposed.

发明内容：Invention content:

本发明提供了一种基于SLA的3D打印机，其目的在于解决了横置的反射镜设置在成型台的上方，不可收回，从而会阻碍成型腔其他结构检修和安装，且在反射过程中，反射镜会吸收部分激光能量，使反射镜的温度上升，进而导致反射镜发生形变和损耗，而形变会导致反射镜的镜面不平整，进而使反射镜的反射精度下降的问题。The present invention provides a 3D printer based on SLA, the purpose of which is to solve the problem that the horizontal reflector is arranged above the molding table and cannot be retracted, thus hindering the maintenance and installation of other structures in the molding cavity, and during the reflection process, the reflection The mirror will absorb part of the laser energy, which will increase the temperature of the reflector, which will cause deformation and loss of the reflector, and the deformation will cause the mirror surface of the reflector to be uneven, thereby reducing the reflection accuracy of the reflector.

本发明提供了一种基于SLA的3D打印机，包括壳体，所述壳体的内部开设有成型腔，所述成型腔内壁一侧的中部设置有第一反射机构，所述成型腔内壁另一侧的顶部设置有第二反射机构；The present invention provides a 3D printer based on SLA, which includes a casing, a molding cavity is opened inside the casing, a first reflection mechanism is arranged in the middle of one side of the inner wall of the molding cavity, and the other side of the inner wall of the molding cavity The top of the side is provided with a second reflection mechanism;

所述成型腔顶部的一侧设置有激光发生器，所述激光发生器与第一反射机构相对应，第一反射机构和第二反射机构连接着同一个冷却组件；A laser generator is provided on one side of the top of the molding cavity, the laser generator corresponds to the first reflection mechanism, and the first reflection mechanism and the second reflection mechanism are connected to the same cooling assembly;

所述第一反射机构包括基板二和稳定座，所述稳定座的顶部设置有基板二，所述基板二的顶端安设有纵向反射镜，所述稳定座的内侧插接有转轴二，所述壳体的内侧固联有伺服电机，所述伺服电机的动力输出端与转轴二的一端固定连接，所述转轴二的另一端与壳体的内侧活动连接；The first reflection mechanism includes abase plate 2 and a stable seat, the top of the stable base is provided with thebase plate 2, the top of thebase plate 2 is provided with a longitudinal reflector, and the inner side of the stable base is inserted with therotating shaft 2, so The inner side of the housing is fixedly connected with a servo motor, the power output end of the servo motor is fixedly connected to one end of therotating shaft 2, and the other end of the rotatingshaft 2 is movably connected to the inner side of the housing;

所述成型腔内壁另一侧的顶部开设有回收槽，第二反射机构包括基板一和横向反射镜，所述基板一的底端设置有转轴一，所述转轴一的两端与回收槽的内侧转动连接，所述基板一的一侧设置有横向反射镜，所述基板一的外侧与回收槽的内侧可变动连接。The top of the other side of the inner wall of the molding cavity is provided with a recycling tank. The second reflection mechanism includes a substrate one and a transverse mirror. The bottom end of the substrate one is provided with a rotating shaft one. The inner side is rotationally connected, one side of the substrate one is provided with a lateral reflector, and the outer side of the substrate one is variably connected to the inner side of the recovery tank.

进一步地，所述稳定座为半圆柱状，所述成型腔内壁一侧的中部开设有滚动槽，所述滚动槽内底壁的形状为半圆柱周面，所述稳定座的底部与滚动槽的内底壁滑动连接。Further, the stable seat is semi-cylindrical, and a rolling groove is provided in the middle of one side of the inner wall of the molding cavity. The inner bottom wall of the rolling groove is in the shape of a semi-cylindrical peripheral surface. The inner bottom wall is slidingly connected.

通过采用上述方案，稳定座和滚动槽配合，使基板二和纵向反射镜的角度改变更加平稳。By adopting the above solution, the stable seat cooperates with the rolling groove to make the angle change between the second substrate and the longitudinal mirror more stable.

进一步地，所述冷却组件包括循环压缩机、翅片管散热器、连接管一、连接管二、连接管三和连接管四，所述壳体的顶端设置有循环压缩机，所述壳体的一侧设置有翅片管散热器，散热器的内容有冷却液，所述循环压缩机的两端分别设置有连接管三和连接管四，所述翅片管散热器的顶端与连接管三的一端固定连接，所述翅片管散热器的底端设置有连接管一，所述连接管一的底端与基板一的一端固定连接，所述基板一的另一端设置有连接管二，所述连接管四的底端与基板二的一端固定连接，所述稳定座的另一端与连接管二远离基板一的一端固定连接。Further, the cooling assembly includes a circulating compressor, a finned tube radiator, connectingpipe 1, connectingpipe 2, connectingpipe 3 and connectingpipe 4, a circulating compressor is arranged on the top of the casing, and the casing One side of the radiator is provided with a finned tube radiator, and the content of the radiator contains cooling liquid. The two ends of the circulating compressor are respectively provided with connectingpipes 3 and 4. The top of the finned tube radiator is connected with the connecting pipe One end of the third is fixedly connected, the bottom end of the finned tube radiator is provided with a connecting pipe one, the bottom end of the connecting pipe one is fixedly connected with one end of the substrate one, and the other end of the substrate one is provided with a connecting pipe two , the bottom end of the connectingpipe 4 is fixedly connected to one end of thebase plate 2, and the other end of the stable seat is fixedly connected to the end of the connectingpipe 2 away from thebase plate 1.

通过采用上述方案，冷却组件使基板一上的横向反射镜和基板二上的纵向反射镜的温度保持稳定，减少因温度过高造成横向反射镜和基板二发生形变和损耗，保证反射镜镜面平整度，从而保证反射镜的反射精度。By adopting the above scheme, the cooling assembly keeps the temperature of the horizontal reflector on thesubstrate 1 and the longitudinal reflector on thesubstrate 2 stable, reduces the deformation and loss of the transverse reflector and thesubstrate 2 due to excessive temperature, and ensures that the mirror surface is flat degree, so as to ensure the reflection accuracy of the mirror.

进一步地，所述回收槽顶端的一侧开设有活动腔，所述活动腔内壁的一端铰接有伺服电缸，所述伺服电缸的活动端固定连接有连接架，所述连接架的一侧与基板一一端的一侧铰接。Further, a movable chamber is provided on one side of the top of the recovery tank, a servo electric cylinder is hinged at one end of the inner wall of the movable chamber, and a connecting frame is fixedly connected to the movable end of the servo electric cylinder, and one side of the connecting frame Hinged to one side of one end of the base plate.

通过采用上述方案，回收槽使基板一和横向反射镜得以回收到壳体的内侧，避免阻碍成型腔其他结构维护、检修和安装，伺服电缸通过连接架控制基板一摆动，使横向反射镜控制激光的反射角度发生改变。By adopting the above-mentioned solution, the recovery groove enables thesubstrate 1 and the lateral reflector to be recovered to the inner side of the housing, avoiding hindering the maintenance, inspection and installation of other structures in the molding cavity. The servo electric cylinder controls the swing of thesubstrate 1 through the connecting frame, so that the lateral reflector controls The reflection angle of the laser light changes.

进一步地，所述基板一的一侧开设有安装槽一，所述安装槽一的内侧插接有导热座一，所述导热座一的一侧开设有导热槽，所述导热槽的材料为铜，所述导热座一的一侧与横向反射镜的一侧固定连接，所述横向反射镜的四周均固定连接有方形固定框，所述方形固定框的一侧与安装槽一的内侧卡接，所述导热槽的形状为正四棱台，所述连接管一和连接管二均与导热槽的内腔相连通。Further, one side of the substrate one is provided with an installation groove one, and a heat conduction seat one is plugged into the inner side of the installation groove one, and one side of the heat conduction seat one is provided with a heat conduction groove, and the material of the heat conduction groove is Copper, one side of theheat conduction seat 1 is fixedly connected to one side of the lateral reflector, and a square fixed frame is fixedly connected around the lateral reflector, and one side of the square fixed frame is fixed to the inner side of theinstallation groove 1 Next, the shape of the heat conduction groove is a regular square prism, and the first connecting pipe and the second connecting pipe communicate with the inner cavity of the heat conduction groove.

通过采用上述方案，冷却液到达基板一的内侧后会到达导热槽的内腔，横向反射镜的热量通过导热座一传导给冷却液。By adopting the above solution, the cooling liquid reaches the inner cavity of the heat conducting groove after reaching the inner side of the substrate one, and the heat of the lateral reflector is conducted to the cooling liquid through the heat conducting seat one.

进一步地，所述基板二的顶部开设有安装槽二，所述安装槽二的内侧插接有导热座二，所述导热座二的材料为铜，所述导热座二的底部交替设置有若干个冷却槽和配合槽，所述安装槽二的内底壁设置有若干个分割板，所述分割板与配合槽分别对应，每个所述分割板的顶端均设置有密封块，所述密封块的材料为橡胶，所述密封块与对应的配合槽可变动连接，所述安装槽二与连接管二和连接管四相连通，所述分割板的两端部交替设置有缺口，使得安装槽二的内腔分割为S形通道。Further, the top of thesubstrate 2 is provided with amounting groove 2, and the inner side of themounting groove 2 is inserted with aheat conducting seat 2, and the material of theheat conducting seat 2 is copper, and the bottom of theheat conducting seat 2 is alternately arranged with several a cooling groove and a matching groove, the inner bottom wall of theinstallation groove 2 is provided with several partition plates, the partition plates correspond to the matching grooves respectively, and a sealing block is arranged on the top of each of the partition plates, and the sealing block The material of the block is rubber, the sealing block is variably connected with the corresponding matching groove, the second installation groove communicates with the second connecting pipe and the fourth connecting pipe, and the two ends of the partition plate are alternately provided with gaps, so that the installation The inner cavity of the second groove is divided into an S-shaped channel.

通过采用上述方案，冷却液通过安装槽二内侧的S形通道，冷却液与导热座二一侧接触，冷却槽增大冷却液与导热座二的接触面积，纵向反射镜的热量传递给导热座二，导热座二将热量传导给冷却液。By adopting the above scheme, the coolant passes through the S-shaped channel inside the installation groove two, the coolant contacts one side of the heat conduction seat two, the cooling groove increases the contact area between the coolant and the heat conduction seat two, and the heat of the longitudinal reflector is transferred to the heat conduction seat Second, theheat conduction seat 2 conducts heat to the coolant.

进一步地，所述纵向反射镜底部的两端分别设置有一个固定柱，所述固定柱与基板二的顶部插接。Further, the two ends of the bottom of the longitudinal reflector are respectively provided with a fixing column, and the fixing column is inserted into the top of the second substrate.

通过采用上述方案，固定柱方便纵向反射镜稳定的固定在基板二一侧。By adopting the above solution, the fixing column facilitates the stable fixing of the longitudinal reflector on one side of the substrate two.

与现有技术相比，本发明的上述技术方案具有如下有益的技术效果：Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

1、本发明中，通过回收槽和基板一的配合使用，使基板一和横向反射镜得以回收到壳体的内侧，避免阻碍成型腔其他结构维护、检修和安装，伺服电缸通过连接架控制基板一摆动，使横向反射镜控制激光的反射角度发生改变；1. In the present invention, through the combined use of the recovery tank and thebase plate 1, thebase plate 1 and the lateral reflector can be recovered to the inner side of the housing, so as to avoid hindering the maintenance, inspection and installation of other structures in the molding cavity. The servo electric cylinder is controlled by the connecting frame As soon as the substrate swings, the reflection angle of the laser controlled by the horizontal mirror changes;

2、本发明中，通过冷却组件的使用，使基板一上的横向反射镜和基板二上的纵向反射镜的温度保持稳定，减少因温度过高造成横向反射镜和基板二发生形变和损耗，保证反射镜镜面平整度，从而保证反射镜的反射精度。2. In the present invention, through the use of cooling components, the temperature of the lateral reflector on the first substrate and the longitudinal reflector on the second substrate is kept stable, reducing the deformation and loss of the lateral reflector and the second substrate due to excessive temperature, Ensure the flatness of the mirror surface, so as to ensure the reflection accuracy of the mirror.

本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书以及附图中所特别指出的结构来实现和获得。Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description as well as the appended drawings.

附图说明Description of drawings

附图用来提供对本发明进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

图1为本发明的正面结构示意图；Fig. 1 is the front structure schematic diagram of the present invention;

图2为本发明基板一的正面结构示意图；FIG. 2 is a schematic view of the front structure of thesubstrate 1 of the present invention;

图3为本发明基板二与伺服电机的连接关系结构示意图；Fig. 3 is a schematic structural diagram of the connection relationship between the second substrate and the servo motor of the present invention;

图4为本发明基板二正面的截面结构示意图；4 is a schematic cross-sectional structure diagram of the two front sides of the substrate of the present invention;

图5为本发明图1中A部分的局部放大结构示意图；Fig. 5 is the partially enlarged structural schematic diagram of part A in Fig. 1 of the present invention;

图6为本发明图1中B部分的局部放大结构示意图；Fig. 6 is the partially enlarged structural schematic diagram of part B in Fig. 1 of the present invention;

图7为本发明冷却组件结构示意图。Fig. 7 is a schematic structural diagram of the cooling assembly of the present invention.

附图标记：1、壳体；2、激光发生器；3、成型腔；4、循环压缩机；5、活动腔；6、伺服电缸；7、翅片管散热器；8、基板一；9、转轴一；10、横向反射镜；11、方形固定框；12、连接架；13、转轴二；14、基板二；15、安装槽二；16、纵向反射镜；17、导热座二；18、冷却槽；19、配合槽；20、固定柱；21、伺服电机；22、分割板；23、密封块；24、；25、安装槽一；26、导热座一；27、导热槽；28、滚动槽；29、连接管一；30、连接管二；31、连接管三；32、连接管四；33、回收槽；34、稳定座。Reference signs: 1. Shell; 2. Laser generator; 3. Forming cavity; 4. Cycle compressor; 5. Activity cavity; 6. Servo electric cylinder; 7. Finned tube radiator; 8. Base plate one; 9.Shaft 1; 10. Transverse mirror; 11. Square fixed frame; 12. Connecting frame; 13.Shaft 2; 14.Base plate 2; 15. Mountinggroove 2; 18. Cooling groove; 19. Cooperating groove; 20. Fixed column; 21. Servo motor; 22. Split plate; 23. Sealing block; 24.; 25. Installation groove one; 28, rolling groove; 29, connecting pipe one; 30, connecting pipe two; 31, connecting pipe three; 32, connecting pipe four; 33, recovery groove; 34, stable seat.

具体实施方式Detailed ways

为了使得本发明的技术方案的目的、技术方案和优点更加清楚，下文中将结合本发明具体实施例的附图，对本发明实施例的技术方案进行清楚、完整的描述。附图中相同的附图标记代表相同的部件。需要说明的是，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. The same reference numerals in the figures represent the same parts. It should be noted that the described embodiments are some of the embodiments of the present invention, but not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

如图1-7所示，本发明提出一种基于SLA的3D打印机，包括壳体1，所述壳体1的内部开设有成型腔3，所述成型腔3内壁一侧的中部设置有第一反射机构，所述成型腔3内壁另一侧的顶部设置有第二反射机构；As shown in Figures 1-7, the present invention proposes an SLA-based 3D printer, which includes acasing 1, amolding cavity 3 is opened inside thecasing 1, and a first A reflection mechanism, the top of the other side of the inner wall of themolding cavity 3 is provided with a second reflection mechanism;

所述成型腔3顶部的一侧设置有激光发生器2，所述激光发生器2与第一反射机构相对应，第一反射机构和第二反射机构连接着同一个冷却组件；One side of the top of themolding cavity 3 is provided with alaser generator 2, thelaser generator 2 corresponds to the first reflection mechanism, and the first reflection mechanism and the second reflection mechanism are connected to the same cooling assembly;

所述第一反射机构包括基板二14和稳定座34，所述稳定座34的顶部设置有基板二14，所述基板二14的顶端安设有纵向反射镜16，所述稳定座34的内侧插接有转轴二13，所述壳体1的内侧固联有伺服电机21，所述伺服电机21的动力输出端与转轴二13的一端固定连接，所述转轴二13的另一端与壳体1的内侧活动连接；Described first reflection mechanism comprises substrate two 14 andstable seat 34, and the top of describedstable seat 34 is provided with substrate two 14, and the top of described substrate two 14 is provided withlongitudinal mirror 16, and the inner side of described stable seat 34 Arotating shaft 2 13 is plugged in, and aservo motor 21 is fixedly connected to the inner side of thehousing 1. The power output end of theservo motor 21 is fixedly connected to one end of therotating shaft 13, and the other end of therotating shaft 13 is connected to the housing. Medial active connection of 1;

所述成型腔3内壁另一侧的顶部开设有回收槽33，第二反射机构包括基板一8和横向反射镜10，所述基板一8的底端设置有转轴一9，所述转轴一9的两端与回收槽33的内侧转动连接，所述基板一8的一侧设置有横向反射镜10，所述基板一8的外侧与回收槽33的内侧可变动连接。The top of the other side of the inner wall of themolding cavity 3 is provided with arecovery groove 33, and the second reflection mechanism includes a substrate one 8 and alateral reflector 10. The bottom end of the substrate one 8 is provided with arotating shaft 9, and the rotating shaft one 9 The two ends of thebase plate 8 are rotatably connected to the inner side of therecovery tank 33, and alateral reflector 10 is provided on one side of the base plate one 8, and the outside of the base plate one 8 is variably connected to the inner side of therecovery tank 33.

所述稳定座34为半圆柱状，所述成型腔3内壁一侧的中部开设有滚动槽28，所述滚动槽28内底壁的形状为半圆柱周面，所述稳定座34的底部与滚动槽28的内底壁滑动连接；Thestable seat 34 is semi-cylindrical, and the middle part of one side of the inner wall of themolding cavity 3 is provided with a rollinggroove 28, and the inner bottom wall of the rollinggroove 28 is shaped as a semi-cylindrical peripheral surface. The inner bottom wall of thegroove 28 is slidingly connected;

稳定座34和滚动槽28配合，使基板二14和纵向反射镜16的角度改变更加平稳。Thestable seat 34 cooperates with the rollinggroove 28 to make the angle change between thesecond substrate 14 and thelongitudinal mirror 16 more stable.

所述冷却组件包括循环压缩机4、翅片管散热器7、连接管一29、连接管二30、连接管三31和连接管四32，所述壳体1的顶端设置有循环压缩机4，所述壳体1的一侧设置有翅片管散热器7，散热器7的内容有冷却液，所述冷却液的包括酒精、甘油和乙二醇，所述循环压缩机4的两端分别设置有连接管三31和连接管四32，所述翅片管散热器7的顶端与连接管三31的一端固定连接，所述翅片管散热器7的底端设置有连接管一29，所述连接管一29的底端与基板一8的一端固定连接，所述基板一8的另一端设置有连接管二30，所述连接管四32的底端与基板二14的一端固定连接，所述稳定座34的另一端与连接管二30远离基板一8的一端固定连接；The cooling assembly includes a circulatingcompressor 4, afinned tube radiator 7, a connectingpipe 1 29, a connectingpipe 2 30, a connectingpipe 3 31 and a connectingpipe 4 32, and the top of thehousing 1 is provided with a circulatingcompressor 4 , one side of thehousing 1 is provided with afinned tube radiator 7, and the content of theradiator 7 has cooling liquid, and the cooling liquid includes alcohol, glycerin and ethylene glycol, and the two ends of the circulatingcompressor 4 Connecting pipe three 31 and connecting pipe four 32 are provided respectively, the top of thefinned tube radiator 7 is fixedly connected to one end of the connecting pipe three 31, and the bottom end of thefinned tube radiator 7 is provided with a connecting pipe one 29 , the bottom end of the connecting pipe one 29 is fixedly connected to one end of the substrate one 8, the other end of the substrate one 8 is provided with a connecting pipe two 30, and the bottom end of the connecting pipe four 32 is fixed to one end of the substrate two 14 connected, the other end of thestable seat 34 is fixedly connected to the end of the connectingpipe 2 30 away from thebase plate 8;

冷却组件使基板一8上的横向反射镜10和基板二14上的纵向反射镜16的温度保持稳定，减少因温度过高造成横向反射镜10和基板二14发生形变和损耗，保证反射镜镜面平整度，从而保证反射镜的反射精度。The cooling assembly keeps the temperature of thetransverse reflector 10 on the substrate one 8 and thelongitudinal reflector 16 on the substrate two 14 stable, reduces the deformation and loss of thetransverse reflector 10 and the substrate two 14 due to excessive temperature, and ensures the mirror surface Flatness, so as to ensure the reflection accuracy of the mirror.

所述回收槽33顶端的一侧开设有活动腔5，所述活动腔5内壁的一端铰接有伺服电缸6，所述伺服电缸6的活动端固定连接有连接架12，所述连接架12的一侧与基板一8一端的一侧铰接；One side of the top of therecovery groove 33 is provided with amovable chamber 5, and one end of the inner wall of themovable chamber 5 is hinged with a servoelectric cylinder 6, and the movable end of the servoelectric cylinder 6 is fixedly connected with a connectingframe 12, and the connecting frame One side of 12 is hinged to one side of one end of base plate one 8;

回收槽33使基板一8和横向反射镜10得以回收到壳体1的内侧，避免阻碍成型腔其他结构维护、检修和安装，伺服电缸6通过连接架12控制基板一8摆动，使横向反射镜10控制激光的反射角度发生改变。Therecovery groove 33 enables thebase plate 8 and thelateral reflector 10 to be recovered to the inner side of thehousing 1, so as to avoid hindering the maintenance, overhaul and installation of other structures in the molding cavity. The servoelectric cylinder 6 controls the swing of thebase plate 8 through the connectingframe 12 to make the lateral reflection Themirror 10 controls the reflection angle of the laser light to change.

所述基板一8的一侧开设有安装槽一25，所述安装槽一25的内侧插接有导热座一26，所述导热座一26的一侧开设有导热槽27，所述导热槽27的材料为铜，所述导热座一26的一侧与横向反射镜10的一侧固定连接，所述横向反射镜10的四周均固定连接有方形固定框11，所述方形固定框11的一侧与安装槽一25的内侧卡接，所述导热槽27的形状为正四棱台，所述连接管一29和连接管二30均与导热槽27的内腔相连通；One side of the substrate one 8 is provided with a mounting groove one 25, and the inside of the installation groove one 25 is inserted with a heat conduction seat one 26, and one side of the heat conduction seat one 26 is provided with aheat conduction groove 27, and the heat conduction groove The material of 27 is copper, and one side of theheat conduction base 26 is fixedly connected with one side of thelateral reflector 10, and the four sides of thelateral reflector 10 are fixedly connected with a square fixedframe 11, and the square fixedframe 11 One side is clamped with the inner side of the installation groove one 25, the shape of theheat conduction groove 27 is a square prism, and the connection pipe one 29 and the connection pipe two 30 are connected with the inner cavity of theheat conduction groove 27;

冷却液到达基板一8的内侧后会到达导热槽27的内腔，横向反射镜10的热量通过导热座一26传导给冷却液。After the cooling liquid reaches the inner side of the substrate one 8, it will reach the inner cavity of theheat conducting groove 27, and the heat of thelateral reflector 10 is conducted to the cooling liquid through the heat conducting seat one 26.

所述基板二14的顶部开设有安装槽二15，所述安装槽二15的内侧插接有导热座二17，所述导热座二17的材料为铜，所述导热座二17的底部交替设置有若干个冷却槽18和配合槽19，所述安装槽二15的内底壁设置有若干个分割板22，所述分割板22与配合槽19分别对应，每个所述分割板22的顶端均设置有密封块23，所述密封块23的材料为橡胶，所述密封块23与对应的配合槽19可变动连接，所述安装槽二15与连接管二30和连接管四32相连通，所述分割板22的两端部交替设置有缺口，使得安装槽二15的内腔分割为S形通道；The top of thebase plate 14 is provided with a mountinggroove 2 15, and the inner side of the mountinggroove 15 is inserted with aheat conducting seat 2 17, and the material of theheat conducting seat 2 17 is copper, and the bottom of theheat conducting seat 2 17 alternatesSeveral cooling grooves 18 and matchinggrooves 19 are provided, and the inner bottom wall of thesecond installation groove 15 is provided with several dividingplates 22, and the dividingplates 22 correspond to the matchinggrooves 19 respectively, and each of the dividingplates 22 Sealing blocks 23 are provided at the top, and the material of the sealing blocks 23 is rubber, and the sealing blocks 23 are variably connected with the correspondingfitting grooves 19, and theinstallation groove 2 15 is connected with the connectingpipe 2 30 and the connectingpipe 4 32 Through, the two ends of thepartition plate 22 are alternately provided with gaps, so that the inner cavity of thesecond installation groove 15 is divided into an S-shaped channel;

冷却液通过安装槽二15内侧的S形通道，冷却液与导热座二17一侧接触，冷却槽18增大冷却液与导热座二17的接触面积，纵向反射镜16的热量传递给导热座二17，导热座二17将热量传导给冷却液，使纵向反射镜16得到冷却，进而使纵向反射镜16温度保持稳定。The coolant passes through the S-shaped channel inside theinstallation groove 2 15, the coolant contacts the side of theheat conduction seat 17, the coolinggroove 18 increases the contact area between the coolant and theheat conduction seat 17, and the heat of thelongitudinal reflector 16 is transferred to the heat conduction seat Two 17, the heat conduction seat two 17 conducts heat to the cooling liquid, so that thelongitudinal reflector 16 is cooled, and then the temperature of thelongitudinal reflector 16 is kept stable.

所述纵向反射镜16底部的两端分别设置有一个固定柱20，所述固定柱20与基板二14的顶部插接；The two ends of the bottom of thelongitudinal mirror 16 are respectively provided with a fixedcolumn 20, and the fixedcolumn 20 is inserted into the top of thesecond substrate 14;

固定柱20方便纵向反射镜16稳定的固定在基板二14的一侧。The fixingcolumn 20 facilitates the stable fixing of thelongitudinal mirror 16 on one side of thesecond substrate 14 .

实施方式具体为：激光发生器2发射的激光打在纵向反射镜16的顶部，经纵向反射镜16反射使激光发生器2发射的激光到达横向反射镜10的外侧，横向反射镜10使激光打到成型腔3的底部；The implementation mode is specifically: the laser light emitted by thelaser generator 2 hits the top of thelongitudinal reflector 16, and the laser light emitted by thelaser generator 2 reaches the outside of thetransverse reflector 10 after being reflected by thelongitudinal reflector 16, and thetransverse reflector 10 makes the laser strike to the bottom of themolding cavity 3;

伺服电机21通过转轴二13控制调整基板二14的转动，调整基板二14的角度，从而调整纵向反射镜16的角度，从而调整激光打在横向反射镜10一侧竖直方向上的位置，从而改变激光射在成型腔3底部的纵向位置，伺服电缸6通过连接架12带动基板一8绕着转轴一9的中心摆动，从而改变横向反射镜10与回收槽33内壁的夹角，改变激光射在成型腔3底部的横向位置；Servo motor 21 controls and adjusts the rotation ofsubstrate 2 14 throughrotating shaft 2 13, adjusts the angle ofsubstrate 2 14, thereby adjusts the angle oflongitudinal reflector 16, thereby adjusts the position of the laser on the vertical direction on one side oftransverse reflector 10, thereby Change the longitudinal position of the laser beam at the bottom of themolding cavity 3, the servoelectric cylinder 6 drives thebase plate 8 to swing around the center of therotating shaft 9 through the connectingframe 12, thereby changing the angle between thehorizontal mirror 10 and the inner wall of therecovery tank 33, and changing the laser beam. Shot at the lateral position at the bottom of themolding cavity 3;

循环压缩机4运转，使冷却液通过连接管四32到达稳定座34的内侧，稳定座34内冷却液使纵向反射镜16得到冷却，使纵向反射镜16的温度保持稳定，从而减少纵向反射镜16发生的形变，基板二14内的冷却液经过连接管二30到达基板一8的内侧使横向反射镜10得到冷却，使横向反射镜10的温度保持稳定，减少横向反射镜10发生形变；The circulatingcompressor 4 runs, so that the cooling liquid reaches the inside of thestable seat 34 through the connectingpipe 4 32, and the cooling liquid in thestable seat 34 cools thelongitudinal reflector 16 to keep the temperature of thelongitudinal reflector 16 stable, thereby reducing the number of vertical reflectors. 16 deformation, the coolant in thesecond substrate 14 reaches the inner side of thefirst substrate 8 through the second connectingpipe 30 to cool thelateral reflector 10, keep the temperature of thelateral reflector 10 stable, and reduce the deformation of thelateral reflector 10;

基板一8内侧的冷却液经过连接管一29到达翅片管散热器7的内侧，冷却液通过翅片管散热器7散失热量，通过翅片管散热器7使冷却液得到冷却，翅片管散热器7通过连接管三31使其内部的冷却液返回到翅片管散热器7；The cooling liquid inside the substrate one 8 reaches the inside of thefinned tube radiator 7 through the connecting pipe one 29, the cooling liquid dissipates heat through thefinned tube radiator 7, and the cooling liquid is cooled by thefinned tube radiator 7, and the finned tube Theradiator 7 returns the cooling liquid inside to thefinned tube radiator 7 through the connecting pipe three 31;

冷却液通过安装槽二15内侧的S形通道，冷却液与导热座二17一侧接触，冷却槽18增大冷却液与导热座二17的接触面积，纵向反射镜16的热量传递给导热座二17，导热座二17将热量传导给冷却液；The coolant passes through the S-shaped channel inside theinstallation groove 2 15, the coolant contacts the side of theheat conduction seat 17, the coolinggroove 18 increases the contact area between the coolant and theheat conduction seat 17, and the heat of thelongitudinal reflector 16 is transferred to the heat conduction seat Two 17, the heat conduction seat two 17 conducts heat to the coolant;

冷却液减少因温度过高造成横向反射镜10和纵向反射镜16发生形变和损耗，保证反射镜镜面平整度，从而保证反射镜的反射精度。The cooling liquid reduces the deformation and loss of thetransverse reflector 10 and thelongitudinal reflector 16 due to excessive temperature, so as to ensure the flatness of the reflector surface, thereby ensuring the reflection accuracy of the reflector.

以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

Translated fromChinese

1.一种基于SLA的3D打印机，包括壳体(1)，其特征在于，所述壳体(1)的内部开设有成型腔(3)，所述成型腔(3)内壁一侧的中部设置有第一反射机构，所述成型腔(3)内壁另一侧的顶部设置有第二反射机构；1. A 3D printer based on SLA, comprising a housing (1), characterized in that, the inside of the housing (1) is provided with a molding cavity (3), and the middle part of one side of the inner wall of the molding cavity (3) A first reflection mechanism is provided, and a second reflection mechanism is provided on the top of the other side of the inner wall of the molding cavity (3);所述成型腔(3)顶部的一侧设置有激光发生器(2)，所述激光发生器(2)与第一反射机构相对应，第一反射机构和第二反射机构连接着同一个冷却组件；One side of the top of the molding cavity (3) is provided with a laser generator (2), the laser generator (2) corresponds to the first reflection mechanism, the first reflection mechanism and the second reflection mechanism are connected to the same cooling components;所述第一反射机构包括基板二(14)和稳定座(34)，所述稳定座(34)的顶部设置有基板二(14)，所述基板二(14)的顶端安设有纵向反射镜(16)，所述稳定座(34)的内侧插接有转轴二(13)，所述壳体(1)的内侧固联有伺服电机(21)，所述伺服电机(21)的动力输出端与转轴二(13)的一端固定连接；The first reflection mechanism includes a base plate two (14) and a stable seat (34), the top of the stable base (34) is provided with a base plate two (14), and the top of the base plate two (14) is provided with a longitudinal reflection mirror (16), the inner side of the stable seat (34) is plugged with a rotating shaft two (13), the inner side of the housing (1) is fixedly connected with a servo motor (21), and the power of the servo motor (21) The output end is fixedly connected with one end of the rotating shaft two (13);所述成型腔(3)内壁另一侧的顶部开设有回收槽(33)，第二反射机构包括基板一(8)和横向反射镜(10)，所述基板一(8)的底端设置有转轴一(9)，所述转轴一(9)的两端与回收槽(33)的内侧转动连接，所述基板一(8)的一侧设置有横向反射镜(10)，所述基板一(8)的外侧与回收槽(33)的内侧可变动连接。The top of the other side of the inner wall of the molding cavity (3) is provided with a recovery tank (33), and the second reflection mechanism includes a substrate one (8) and a lateral reflector (10), and the bottom end of the substrate one (8) is provided with a There is a rotating shaft one (9), the two ends of the rotating shaft one (9) are rotatably connected to the inner side of the recovery tank (33), and a lateral reflector (10) is arranged on one side of the substrate one (8). The outside of one (8) is variably connected with the inside of recovery tank (33).2.根据权利要求1所述的一种基于SLA的3D打印机，其特征在于：所述稳定座(34)为半圆柱状，所述成型腔(3)内壁一侧的中部开设有滚动槽(28)，所述滚动槽(28)内底壁的形状为半圆柱周面，所述稳定座(34)的底部与滚动槽(28)的内底壁滑动连接。2. A 3D printer based on SLA according to claim 1, characterized in that: the stable seat (34) is semi-cylindrical, and a rolling groove (28) is opened in the middle of one side of the inner wall of the molding cavity (3) ), the shape of the inner bottom wall of the rolling groove (28) is a semi-cylindrical peripheral surface, and the bottom of the stable seat (34) is slidingly connected with the inner bottom wall of the rolling groove (28).3.根据权利要求1所述的一种基于SLA的3D打印机，其特征在于：所述冷却组件包括循环压缩机(4)、翅片管散热器(7)、连接管一(29)、连接管二(30)、连接管三(31)和连接管四(32)，所述壳体(1)的顶端设置有循环压缩机(4)，所述壳体(1)的一侧设置有翅片管散热器(7)，所述循环压缩机(4)的两端分别设置有连接管三(31)和连接管四(32)，所述翅片管散热器(7)的顶端与连接管三(31)的一端固定连接，所述翅片管散热器(7)的底端设置有连接管一(29)，所述连接管一(29)的底端与基板一(8)的一端固定连接，所述基板一(8)的另一端设置有连接管二(30)，所述连接管四(32)的底端与基板二(14)的一端固定连接，所述稳定座(34)的另一端与连接管二(30)远离基板一(8)的一端固定连接。3. A kind of SLA-based 3D printer according to claim 1, characterized in that: the cooling assembly includes a circulating compressor (4), a finned tube radiator (7), a connecting pipe one (29), a connecting pipe Pipe two (30), connecting pipe three (31) and connecting pipe four (32), the top of the housing (1) is provided with a circulating compressor (4), and one side of the housing (1) is provided with Finned tube radiator (7), the two ends of the circulating compressor (4) are respectively provided with connecting pipe three (31) and connecting pipe four (32), the top of the finned tube radiator (7) is connected with One end of the connecting pipe three (31) is fixedly connected, the bottom end of the finned tube radiator (7) is provided with a connecting pipe one (29), and the bottom end of the connecting pipe one (29) is connected to the substrate one (8) One end of the base plate one (8) is fixedly connected, the other end of the base plate one (8) is provided with a connecting pipe two (30), the bottom end of the connecting pipe four (32) is fixedly connected with one end of the base plate two (14), and the stable seat The other end of (34) is fixedly connected with the end of connecting pipe two (30) away from base plate one (8).4.根据权利要求3所述的一种基于SLA的3D打印机，其特征在于：所述回收槽(33)顶端的一侧开设有活动腔(5)，所述活动腔(5)内壁的一端铰接有伺服电缸(6)，所述伺服电缸(6)的活动端固定连接有连接架(12)，所述连接架(12)的一侧与基板一(8)一端的一侧铰接。4. A kind of SLA-based 3D printer according to claim 3, characterized in that: one side of the top of the recovery tank (33) is provided with an active cavity (5), and one end of the inner wall of the active cavity (5) A servo electric cylinder (6) is articulated, and the movable end of the servo electric cylinder (6) is fixedly connected to a connecting frame (12), and one side of the connecting frame (12) is hinged to one side of one end of the substrate one (8) .5.根据权利要求4所述的一种基于SLA的3D打印机，其特征在于：所述基板一(8)的一侧开设有安装槽一(25)，所述安装槽一(25)的内侧插接有导热座一(26)，所述导热座一(26)的一侧开设有导热槽(27)，所述导热槽(27)的材料为铜，所述导热座一(26)的一侧与横向反射镜(10)的一侧固定连接，所述横向反射镜(10)的四周均固定连接有方形固定框(11)，所述方形固定框(11)的一侧与安装槽一(25)的内侧卡接，所述导热槽(27)的形状为正四棱台，所述连接管一(29)和连接管二(30)均与导热槽(27)的内腔相连通。5. The 3D printer based on SLA according to claim 4, characterized in that: one side of the substrate one (8) is provided with a mounting groove one (25), and the inside of the mounting groove one (25) A heat conduction seat one (26) is plugged in, and one side of the heat conduction seat one (26) is provided with a heat conduction groove (27), and the material of the heat conduction groove (27) is copper, and the heat conduction seat one (26) One side is fixedly connected with one side of the lateral reflector (10), and a square fixed frame (11) is fixedly connected with the surroundings of the lateral reflector (10), and one side of the square fixed frame (11) is connected with the mounting groove. The inner side of one (25) is clamped, the shape of the heat conducting groove (27) is a square prism, and the connecting pipe one (29) and the connecting pipe two (30) are all communicated with the inner cavity of the heat conducting groove (27) .6.根据权利要求5所述的一种基于SLA的3D打印机，其特征在于：所述基板二(14)的顶部开设有安装槽二(15)，所述安装槽二(15)的内侧插接有导热座二(17)，所述导热座二(17)的材料为铜，所述导热座二(17)的底部交替设置有若干个冷却槽(18)和配合槽(19)，所述安装槽二(15)的内底壁设置有若干个分割板(22)，所述分割板(22)与配合槽(19)分别对应，每个所述分割板(22)的顶端均设置有密封块(23)，所述密封块(23)的材料为橡胶，所述密封块(23)与对应的配合槽(19)变动连接，所述安装槽二(15)与连接管二(30)和连接管四(32)相连通，所述分割板(22)的两端部交替设置有缺口，使得安装槽二(15)的内腔分割为S形通道。6. A 3D printer based on SLA according to claim 5, characterized in that: the top of the second substrate (14) is provided with a second installation groove (15), and the inner side of the second installation groove (15) is inserted Connected with heat conduction seat two (17), the material of the heat conduction seat two (17) is copper, and the bottom of the heat conduction seat two (17) is alternately provided with several cooling grooves (18) and matching grooves (19), so The inner bottom wall of the installation groove two (15) is provided with several partition plates (22), and the partition plates (22) correspond to the matching grooves (19) respectively, and the top of each of the partition plates (22) is provided with There is a sealing block (23), the material of the sealing block (23) is rubber, the sealing block (23) is connected with the corresponding matching groove (19), and the installation groove two (15) is connected with the connecting pipe two ( 30) communicates with the connecting pipe four (32), and the two ends of the partition plate (22) are alternately provided with notches, so that the inner cavity of the installation groove two (15) is divided into an S-shaped channel.7.根据权利要求6所述的一种基于SLA的3D打印机，其特征在于：所述纵向反射镜(16)底部的两端分别设置有一个固定柱(20)，所述固定柱(20)与基板二(14)的顶部插接。7. A kind of SLA-based 3D printer according to claim 6, characterized in that: the two ends of the bottom of the longitudinal reflector (16) are respectively provided with a fixed column (20), and the fixed column (20) Connect with the top of base plate two (14).

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