阅读说明：本技术 一种用于精密金属3d打印的自动化后处理装置及方法 (Automatic post-processing device and method for precise metal 3D printing ) 是由 杨永强 王艺锰 陈晓君 于 2020-12-29 设计创作，主要内容包括：本发明提出一种用于精密金属3D打印的自动化后处理装置及方法,所述装置包括环形流水线,所述环形流水线上设有夹紧轮和切割机,所述环形流水线上部安装有用于切割和打磨零件的切割装置及打磨装置,环形流水线一侧设有用于抓取抓取基板的机器人,所述环形流水线的出口处安装有滚抛装置。所述抓取机器人包括机械臂、真空吸盘和真空发生器,所述真空吸盘装夹在机械臂上,真空吸盘通过管道与真空发生器连接。所述滚抛装置包括滚筒、电机、螺旋滚轴和磨料,螺旋滚轴安装于滚筒中间,电机通过皮带带动螺旋滚轴,磨料置于滚筒中。本发明节省人力免去了单独拆除零件支撑的过程,节省人力,滚筒式的批量化处理提高了产品的生产效率。(The invention provides an automatic post-processing device and method for precise metal 3D printing. The grabbing robot comprises a mechanical arm, a vacuum sucker and a vacuum generator, wherein the vacuum sucker is clamped on the mechanical arm and is connected with the vacuum generator through a pipeline. The rolling and polishing device comprises a roller, a motor, a spiral roller and abrasive materials, wherein the spiral roller is arranged in the middle of the roller, the motor drives the spiral roller through a belt, and the abrasive materials are arranged in the roller. The invention saves manpower, saves the process of independently dismounting the part support, saves manpower, and improves the production efficiency of products through drum-type batch processing.)

1. The utility model provides an automatic post processing apparatus for accurate metal 3D prints, includes the annular assembly line, be equipped with pinch roller and cutting machine on the annular assembly line, its characterized in that: the automatic part grinding device is characterized in that a cutting device and a grinding device which are used for cutting and grinding parts are installed on the upper portion of the annular assembly line, a robot used for grabbing and grabbing the substrate is arranged on one side of the annular assembly line, and a rolling and polishing device is installed at an outlet of the annular assembly line.

2. An automated post-processing device for precision metal 3D printing according to claim 1, characterized in that: the grabbing robot comprises a mechanical arm, a vacuum sucker and a vacuum generator, wherein the vacuum sucker is clamped on the mechanical arm and is connected with the vacuum generator through a pipeline.

3. An automated post-processing device for precision metal 3D printing according to claim 2, characterized in that: the cutting device comprises a first position sensor, a clamping wheel and a cutting machine, wherein the first position sensor is arranged in the middle of the clamping wheel, the clamping wheel is arranged below the cutting machine, and a part is driven by a production line to fall into the rolling and polishing device from an outlet on one side of the annular production line after being cut.

4. An automated post-processing device for precision metal 3D printing according to claim 3, characterized in that: the rolling and polishing device comprises a roller, a motor, a spiral roller and abrasive materials, wherein the spiral roller is arranged in the middle of the roller, the motor drives the spiral roller through a belt, and the abrasive materials are arranged in the roller.

5. An automated post-processing device for precision metal 3D printing according to claim 4, characterized in that: the polishing device comprises a polishing machine, a magnetic base, a displacement sliding table and a second position sensor, the polishing machine is installed on the annular production line, the displacement sliding table is installed on the lower portion of the polishing machine, the magnetic base is installed on the displacement sliding table, and the second sensor is installed on the front portion of the displacement sliding table.

6. An automated post-processing device for precision metal 3D printing according to claim 5, characterized in that: and a stop block is arranged on the annular production line and is arranged at the rear part of the clamping wheel.

7. An automated post-processing device for precision metal 3D printing according to claim 6, characterized in that: the width of the grinding wheel of the grinding machine is equal to that of the substrate.

8. An automated post-processing device for precision metal 3D printing according to claim 5, characterized in that: the first position sensor and the second position sensor are not limited to the sensing methods of the infrared sensor and the magnetic induction sensor.

9. An automated post-processing method using the automated post-processing device for precision metal 3D printing of claim 8, comprising the steps of:

the method comprises the following steps that firstly, a grabbing robot grabs a substrate printed and molded by parts and places the substrate on a production line roller of an annular production line, when a first position sensor detects the substrate, the substrate just moves to the middle position of a clamping wheel, the clamping wheel clamps the substrate, and the production line roller pauses working;

moving the clamped substrate through a cutting position of a cutting machine by using the clamping wheel to separate a formed part and the substrate, loosening the substrate by using the clamping wheel after the cutting is finished, and continuously moving the separated part and the substrate forwards on a roller of an assembly line;

thirdly, the part falls into the rolling and polishing device after colliding with the stop block, the roller and the spiral roller rotate together, the grinding material in the stirring roller polishes the part, and the supporting material on the part is removed, so that a sample piece is obtained;

and step four, after the substrate with the parts removed is moved to the magnetic base, when the second position sensor detects the substrate, the magnetic suction switch of the magnetic base is turned on, the magnetic base sucks the substrate, the displacement sliding table drives the substrate to the polishing machine for polishing, and after polishing is finished, the grabbing robot grabs the processing equipment again.

10. The method of claim 9, wherein the gripping robot grips include, but are not limited to, vacuum chuck grips, magnetic suction grips, and gripper-fit grips.

Technical Field

The invention relates to the field of 3D printing, in particular to an automatic post-processing device and method for precise metal 3D printing.

Background

Selective Laser Melting (SLM) is a metal 3D printing technique manufactured by stacking layers, and the slice data of each layer is used to plan a Laser scanning path to selectively melt the powder. The technology can quickly mold parts, but the limitation of the molding principle causes that supports need to be added, and the manufactured parts are directly connected on a supporting substrate. In the post-processing process, processes such as part disassembly and support removal are added, which are less frequent in the traditional process, so that the development of the part of functions is required in the realization of the automatic post-processing method.

At present, with the continuous improvement of the automation degree of metal 3D printing equipment, the requirement on the post-treatment process is also obviously improved. An automatic metal 3D printing post-treatment process is introduced by 3D Systems of American company, and a CNC machining center and a wire cut electric discharge machine are utilized to carry out a post-treatment process on certain special parts; MetalFab1 processing equipment from the national Industries of Netherlands integrates post-processing modules for heat treatment, powder recovery, etc. Although the processes can realize the automatic post-treatment process to a certain extent, the processes have great limitations and cannot be widely applied.

Disclosure of Invention

In order to solve the problems, the invention provides an automatic post-processing device and method for precise metal 3D printing, which can continuously perform post-processing technology, realize the disassembly and polishing of parts, realize automation and high efficiency, and recycle substrates for recycling.

The invention is realized by at least one of the following technical schemes.

The utility model provides an automatic aftertreatment device for accurate metal 3D prints, be equipped with pinch roller and cutting machine on the ring assembly line, ring assembly line upper portion is installed and is used for cutting and the cutting device and the grinding device of the part of polishing, and ring assembly line one side is equipped with and is used for snatching the robot that snatchs the base plate, the device is thrown in the roll is installed in the exit of ring assembly line.

Preferably, the grabbing robot comprises a mechanical arm, a vacuum chuck and a vacuum generator, the vacuum chuck is clamped on the mechanical arm and is connected with the vacuum generator through a pipeline for grabbing the substrate.

Preferably, the cutting device comprises a first position sensor, a clamping wheel and a cutting machine, the first position sensor is installed in the middle of the clamping wheel, the clamping wheel is installed below the cutting machine, and the part is driven by the assembly line to fall into the rolling and throwing device from an outlet on one side of the annular assembly line after being cut.

Preferably, the rolling and polishing device comprises a roller, a motor, a spiral roller and an abrasive, wherein the spiral roller is arranged in the middle of the roller, the motor drives the spiral roller through a belt, and the abrasive is placed in the roller and used for processing parts separated from the substrate.

Preferably, grinding device includes polisher, magnetism base, displacement slip table and second position sensor, the polisher is installed on annular assembly line, the displacement slip table is installed in the polisher lower part, the magnetism pedestal mounting be in on the displacement slip table, the second sensor install in displacement slip table front portion.

Preferably, a stop block is arranged on the circular assembly line and is arranged at the rear part of the clamping wheel.

Preferably, the width of the grinding wheel of the grinding machine is the same as the width of the substrate.

Preferably, the first position sensor and the second position sensor are not limited to the induction type of infrared sensor or magnetic induction sensor.

The automatic post-processing method of the automatic post-processing device for the precise metal 3D printing comprises the following steps:

the method comprises the following steps that firstly, a grabbing robot grabs a substrate printed and molded by parts and places the substrate on a production line roller of an annular production line, when a first position sensor detects the substrate, the substrate just moves to the middle position of a clamping wheel, the clamping wheel clamps the substrate, and the production line roller pauses working;

moving the clamped substrate through a cutting position of a cutting machine by using the clamping wheel to separate a formed part and the substrate, loosening the substrate by using the clamping wheel after the cutting is finished, and continuously moving the separated part and the substrate forwards on a roller of an assembly line;

thirdly, the part falls into the rolling and polishing device after colliding with the stop block, the roller and the spiral roller rotate together, the grinding material in the stirring roller polishes the part, and the supporting material on the part is removed, so that a sample piece is obtained;

after the substrate with the parts removed is moved to the magnetic base, when the second position sensor detects the substrate, a magnetic suction switch of the magnetic base is turned on, the magnetic base sucks the substrate, the displacement sliding table drives the substrate to a polisher for polishing, and after polishing is finished, the grabbing robot grabs the substrate again into the processing equipment;

preferably, the grabbing manipulator grabbing mode comprises and is not limited to vacuum chuck grabbing, magnetic attraction grabbing and clamp matching grabbing.

Compared with the prior art, the invention has the following advantages and effects:

1. the invention realizes the assembly line type cutting of parts and the recovery of substrates. The assembly line conveying mode and the magnetic suction fastening mode are adopted to enable the base plates with the parts to be processed in batches, and manpower is saved. Meanwhile, the standardized size precision of the substrate is guaranteed, and subsequent secondary processing is facilitated.

2. The invention realizes the batch processing of the molded parts. The invention omits the process of independently removing the part support, and the roller type batch processing improves the production efficiency of the product.

Drawings

FIG. 1 is a schematic view of an automated post-processing apparatus assembly for precision metal 3D printing of the present invention;

FIG. 2 is an automated post-processing workflow diagram of the present invention;

FIG. 3 is a schematic view of the cutting assembly of the present invention;

FIG. 4 is a schematic view of a grinding apparatus of the present invention;

in the drawings: 1-a grabbing robot; 2-a cutting device; 3-rolling and polishing device; 4-grinding device; 5-assembly line roller; 21, a cutter; 22-a substrate; 23-a first position sensor; 24-a clamping wheel; 25-a stopper; 41-grinding machine; 42-a magnetic base; 43-displacement slide.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

An automated post-processing device for precision metal 3D printing as shown in fig. 1 comprises a grabbing robot 1, a cutting device 2, a barrel polishing device 3, a grinding device 4 and an annular assembly line 5. The grabbing robot 1 is located on one side of the circular assembly line 5, the cutting device 2 and the grinding device 4 are installed on the upper portion of the circular assembly line 5, and the barreling device 3 is installed at an outlet of the circular assembly line 5.

The gripping robot 1 includes a robot arm, a vacuum chuck, and a vacuum generator for gripping the substrate 22.

The mechanical arm drives the substrate 22 to move and circularly convey between the annular assembly line 5 and the processing equipment; the vacuum chuck is used for sucking and placing the processing substrate 22; the vacuum generator is used for providing vacuum power for the vacuum chuck.

The assembly line roller of the circular assembly line 5 receives the substrate 22 grabbed by the grabbing robot 1, the substrate 22 is moved to a designated position through the assembly line roller, and a part outlet is arranged at one side of the roller at the cutting position for the formed part to fall to the rolling and polishing device 3.

As shown in fig. 3, the cutting device 2 comprises a first position sensor 23, a clamping wheel 24, a cutter 21; the cutting device 2 is used for separating the part substrate 22 into the processed part and the substrate 22, and is used for separating the substrate 22 and the substrate 22 from the part.

The first position sensor 23 is used for detecting the position of the substrate 22; the clamping wheel 24 is used for clamping the substrate 22 and driving the substrate 22 to stably pass through a cutting position; the cutter 21 performs a cutting operation for separating the substrate 22 and the molded component.

The rolling and polishing device 3 mainly comprises a roller, a motor, a spiral roller and an abrasive, and is used for processing parts separated from the substrate 22.

The roller can roll and store the abrasive; the shaped parts separated by the cutting device 2 fall into the drum; the motor drives the spiral roller to stir the parts, and the supports on the parts are removed and preliminary polishing is carried out.

As shown in fig. 4, the polishing device 4 is mainly composed of a polishing machine 41, a magnetic base 42, a displacement slide table 43, and a second position sensor, and is used for polishing the substrate 22 after the parts are separated.

The polishing device 4 is used for polishing the substrate 22 after the parts are separated. The polisher 41 performs polishing processing on the substrate 22 from which the molded part is removed; the magnetic suction base is used for fixing and loosening the substrate 22, so that shaking is avoided during polishing; the displacement sliding table 43 drives the magnetic base 42 to move, and the polishing process is completed; the position sensor is used for detecting the position of the substrate 22, so that the magnetic base can fix and loosen the substrate 22 in time.

The width of the grinding wheel of the grinding machine 41 should be the same as the width of the substrate 22.

The first position sensor 23 and the second position sensor are not limited to induction methods such as an infrared sensor and a magnetic induction sensor.

An automated post-processing method of an automated post-processing apparatus using the 3D printing as shown in fig. 2 includes the steps of:

firstly, a grabbing robot 1 grabs a substrate 22 with a printed and molded part by means of a vacuum chuck, a magnetic attraction and the like, places the substrate on a production line roller of an annular production line 5, and drives the substrate to be conveyed to a cutting device 2 through the production line roller; when the substrate 22 moves to the cutting device 2 on the production line, the first position sensor 23 detects the substrate 22, the substrate 22 moves to the middle position of the clamping wheel 24, the clamping wheel 24 starts the clamping action, and the substrate 22 is clamped;

and step two, under the drive of the assembly line roller, the clamping wheel 24 clamps the substrate 22 to be processed and moves to the cutting machine 21 for cutting, and the formed part and the substrate 22 are separated. After cutting, the clamping wheel 24 loosens the base plate 22 to separate the formed part and the base plate 22, after cutting, the clamping wheel 24 loosens the base plate 22, and the separated part and the base plate 22 continue to move on the assembly line roller;

thirdly, the part falls into the rolling and polishing device 3 after colliding with the stop block 25, the roller and the spiral roller rotate together, the grinding material in the stirring roller polishes and polishes the part, and the supporting material on the part is removed, so that a sample piece is obtained;

step four, after the substrate 22 with the parts removed is moved to the magnetic base 42, when the second position sensor detects the substrate 22, the magnetic switch of the magnetic base 42 is turned on, the magnetic base 42 attracts the substrate 22, the displacement sliding table 43 drives the substrate 22 to the polishing machine 41 for polishing, and after polishing is finished, the grabbing robot 1 grabs the processing equipment again.

The invention can continuously carry out post-treatment process, realizes the disassembly and polishing of parts, and recovers the substrate for recycling. The dynamic post-processing device comprises a grabbing robot, a cutting device, a rolling and polishing device, a polishing device and an annular assembly line. The invention realizes the assembly line type cutting of parts and the recovery of substrates. The assembly line conveying mode and the magnetic suction fastening mode are adopted to enable the base plates with the parts to be processed in batches, and manpower is saved. Meanwhile, the standardized size precision of the substrate is ensured, and the subsequent secondary processing is facilitated; the invention realizes the batch processing of the molded parts. The invention omits the process of independently removing the part support, and the roller type batch processing improves the production efficiency of the product.

The embodiments of the present invention are not limited to the above-described embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.