技术领域technical field
本发明涉及一种有机材料加工技术，尤其是一种聚合物材料表面加工技术，具体地说是一种聚合物用智能可控温低温磨料射流加工装置。The invention relates to an organic material processing technology, in particular to a polymer material surface processing technology, in particular to an intelligent temperature-controllable low-temperature abrasive jet processing device for polymers.
背景技术Background technique
近年来，出现了一种新颖的微细加工技术，即用干燥的压缩空气来加速微小磨粒形成磨料射流，将射流喷射到工件表面对工件进行加工，称之为磨料射流加工技术。磨料射流加工技术成本较低，加工时可以得到很高的材料去除率，且材料去除率可控。磨料射流加工技术可用于加工玻璃、陶瓷和有色金属等。In recent years, a novel micromachining technology has emerged, which uses dry compressed air to accelerate tiny abrasive particles to form an abrasive jet, and spray the jet onto the surface of the workpiece to process the workpiece, which is called abrasive jet processing technology. The cost of abrasive jet processing technology is low, and a high material removal rate can be obtained during processing, and the material removal rate is controllable. Abrasive jet processing technology can be used to process glass, ceramics and non-ferrous metals, etc.
陶瓷材料由于其自身的局限性，在某些场合并不适用。如陶瓷材料缺乏光学透明性，以及其有限的生物相容性因而在生物医学中的应用受限。基于此，人们开始用聚合物材料来替代陶瓷材料。但聚合物大多数为疏水材料，采用常规的磨料射流以及水射流技术进行加工时，材料去除率较低。经研究发现在低温下，对聚合物进行磨料射流加工，材料去除率较高。Due to its own limitations, ceramic materials are not suitable for some occasions. For example, the lack of optical transparency of ceramic materials and their limited biocompatibility limit their applications in biomedicine. Based on this, people began to replace ceramic materials with polymer materials. However, most polymers are hydrophobic materials, and when processed by conventional abrasive jet and water jet technology, the material removal rate is low. It has been found that at low temperature, abrasive jet processing of polymers has a higher material removal rate.
目前在国外用到两种实验装置进行低温磨料射流加工，其中一种装置为磨料射流流经液氮罐实现冷却的目的，此装置对被加工材料的冷却效果较差，且实验装置所占空间过大。另一种装置为液氮射流和磨料射流以一定的入射角进行对射，形成含有液氮的磨料射流，此装置对磨料射流冷却效果较差，且液氮和磨料射流难以实现充分混合，同时由于两射流对射，易导致磨料射流偏离原轨迹。考虑到上述两种装置的缺点，急需一种智能可控温低温磨料射流加工装置，以便对磨料射流和工件进行冷却，在－80℃～－190℃温度范围内实现工件的射流加工。At present, two experimental devices are used abroad for low-temperature abrasive jet processing. One of the devices is for the purpose of cooling the abrasive jet through the liquid nitrogen tank. This device has a poor cooling effect on the processed material, and the space occupied by the experimental device is too big. Another device is that the liquid nitrogen jet and the abrasive jet are shot at a certain angle of incidence to form an abrasive jet containing liquid nitrogen. This device has a poor cooling effect on the abrasive jet, and it is difficult to achieve sufficient mixing of liquid nitrogen and abrasive jets. At the same time Since the two jets are facing each other, it is easy to cause the abrasive jet to deviate from the original track. Considering the shortcomings of the above two devices, an intelligent temperature-controllable low-temperature abrasive jet processing device is urgently needed to cool the abrasive jet and the workpiece, and realize the jet processing of the workpiece within the temperature range of -80°C to -190°C.
发明内容Contents of the invention
本发明的目的是针对聚合物材料难实现低温射流加工的问题，设计一种聚合物用智能可控温低温磨料射流加工装置。The purpose of the present invention is to design an intelligent temperature-controllable low-temperature abrasive jet processing device for polymers, aiming at the problem that it is difficult to realize low-temperature jet processing of polymer materials.
本发明的技术方案是：Technical scheme of the present invention is:
一种聚合物用智能可控温低温磨料射流加工装置，其特征是它包括：An intelligent temperature-controllable low-temperature abrasive jet processing device for polymers is characterized in that it includes:
一磨料射流发生系统，所述磨料射流发生系统主要包括氮气瓶1、磨料仓2、气粉混合器19、磨料射流弯管10和磨料射流喷嘴18，磨料仓2中的磨料和氮气瓶1输出的氮气进入气粉混合器19混合后进入磨料射流弯管10进一步冷却至加工温度后从磨料射流喷嘴18喷出对聚合物工件17进行低温射流加工；An abrasive jet generating system, the abrasive jet generating system mainly includes a nitrogen cylinder 1, an abrasive bin 2, an air powder mixer 19, an abrasive jet elbow 10 and an abrasive jet nozzle 18, the abrasive in the abrasive bin 2 and the output of the nitrogen cylinder 1 The nitrogen enters the gas-powder mixer 19 for mixing and then enters the abrasive jet elbow 10 to be further cooled to the processing temperature and then sprays out from the abrasive jet nozzle 18 to perform low-temperature jet processing on the polymer workpiece 17;
一冷却筒，所述的冷却筒包括冷却筒内罐5和冷却筒外罐11，冷却筒内罐5安装在冷却筒外罐11中并通过法兰盖28实现可拆卸连接，所述的冷却筒内罐5中安装有无底内筒29、冷却筒内罐5与无底内筒29采用焊接方式进行连接，无底内筒29的无底端与冷却筒内罐5底部安装的冷密封圈22相抵从而实现无底内筒29的密封；无底内筒29的有底一端连接有排气口20和磨料入口27，冷却筒内罐5与无底内筒29相抵的一端上安装有加液口23和磨料出口24；所述的冷却筒外罐11还设有外罐真空口25，冷却筒内罐5设有内罐真空口26以便对冷却筒外罐11及冷却筒内罐5进行抽真空提高保温性能；A cooling cylinder, the cooling cylinder includes a cooling cylinder inner tank 5 and a cooling cylinder outer tank 11, the cooling cylinder inner tank 5 is installed in the cooling cylinder outer tank 11 and is detachably connected by a flange cover 28, the cooling cylinder There is a bottomless inner cylinder 29 installed in the cylinder inner tank 5, and the cooling cylinder inner tank 5 and the bottomless inner cylinder 29 are connected by welding. Ring 22 offsets so as to realize the sealing of bottomless inner cylinder 29; the bottomed end of bottomless inner cylinder 29 is connected with exhaust port 20 and abrasive material inlet 27, and the end of cooling cylinder inner tank 5 and bottomless inner cylinder 29 is equipped with Filling port 23 and abrasive material outlet 24; Described cooling cylinder outer tank 11 is also provided with outer tank vacuum port 25, and cooling cylinder inner tank 5 is provided with inner tank vacuum port 26 so that cooling cylinder outer tank 11 and cooling cylinder inner tank 5. Vacuumize to improve thermal insulation performance;
一智能冷却系统，所述智能冷却系统包括一个高温温度探头4、自增压液氮罐6、控制器7和电磁阀9，高温温度探头4安装在排气口20上用于测量无底内筒29中的温度并与控制器7电气连接，控制器根据高温温度探头4控制电磁阀9的开启，电磁阀9安装在连接自增压液氮罐6与加液口23相连的管道上，以便根据测量温度对无底内筒加注液氮，使无底内筒中的温度满足低温加工要求；An intelligent cooling system, the intelligent cooling system includes a high-temperature temperature probe 4, a self-pressurized liquid nitrogen tank 6, a controller 7 and a solenoid valve 9, and the high-temperature temperature probe 4 is installed on the exhaust port 20 for measuring the bottomless inner The temperature in the cylinder 29 is electrically connected with the controller 7, and the controller controls the opening of the solenoid valve 9 according to the high-temperature temperature probe 4, and the solenoid valve 9 is installed on the pipeline connected from the pressurized liquid nitrogen tank 6 to the liquid filling port 23. In order to fill the bottomless inner cylinder with liquid nitrogen according to the measured temperature, so that the temperature in the bottomless inner cylinder can meet the requirements of low temperature processing;
一加工系统，所述的加工系统包括六坐标工作台16，聚合物工件17安装在六坐标工作台16上并与喷嘴18相对，喷嘴18喷出的低温磨料首先对聚合物工件进行快速冷却，由于聚合物工作的冷却速度大于材料的去除速度，因此，快速冷却后的聚合物工件被磨料快速去除，通过调整喷嘴射流角度和六坐标工作台16带动聚合物工件的移动实现对聚合物工件的加工。A processing system, the processing system includes a six-coordinate worktable 16, the polymer workpiece 17 is installed on the six-coordinate workbench 16 and is opposite to the nozzle 18, and the low-temperature abrasive ejected from the nozzle 18 first rapidly cools the polymer workpiece, Because the cooling rate of the polymer work is greater than the removal rate of the material, the rapidly cooled polymer workpiece is quickly removed by the abrasive, and the movement of the polymer workpiece is realized by adjusting the nozzle jet angle and the six-coordinate worktable 16 to drive the polymer workpiece. processing.
所述的气粉混合器19的输出管通过第一快速接头3与磨料入口27实现可拆卸式相连；所述的加液口23通过第二快速接头13与电磁阀9的出口管道实现可拆卸式连接；所述的磨料出口24通过第三快速接头14与磨料射流喷嘴18的进料端实现可拆卸式连接。The output pipe of the gas-powder mixer 19 is detachably connected to the abrasive inlet 27 through the first quick connector 3; the liquid filling port 23 is detachable through the outlet pipe of the second quick connector 13 and the solenoid valve 9 The abrasive outlet 24 is detachably connected to the feeding end of the abrasive jet nozzle 18 through the third quick connector 14 .
在冷却筒内罐5和冷却筒外罐11的法兰连接面之间安装的热密封圈21。The heat sealing ring 21 installed between the flange connection surfaces of the inner tank 5 of the cooling cylinder and the outer tank 11 of the cooling cylinder.
在磨料射流出口处和被加工工件背部安装有热电偶，热电偶与温度信号处理显示系统15电气连接以便将热电偶采集到的信号实时显示出来。Thermocouples are installed at the outlet of the abrasive jet and the back of the processed workpiece, and the thermocouples are electrically connected to the temperature signal processing and display system 15 so as to display the signals collected by the thermocouples in real time.
在无底内筒29的无底部安装有低温温度探头12，以用测量磨料射流弯管10上方的温度，当测量温度不高于氮气沸点温度即表示磨料射流弯管10浸没在液氮中，低温温度探头12实时测量无底内筒中的温度并显示在温度显示器上。A low-temperature temperature probe 12 is installed at the bottom of the bottomless inner cylinder 29 to measure the temperature above the abrasive jet elbow 10. When the measured temperature is not higher than the boiling point of nitrogen, it means that the abrasive jet elbow 10 is immersed in liquid nitrogen. The low-temperature temperature probe 12 measures the temperature in the bottomless inner cylinder in real time and displays it on the temperature display.
通过改变所述的磨料射流弯管10的长度实现磨料射流温度的调节，射流管长度越大，则温度越低。The adjustment of the temperature of the abrasive jet is realized by changing the length of the abrasive jet elbow 10, the longer the jet tube is, the lower the temperature is.
所述的聚合物工件17的加工温度为－80℃～－190℃。The processing temperature of the polymer workpiece 17 is -80°C to -190°C.
所述的冷却筒内罐5也为无底结构，它的无底端与无底内筒29的无底端相连共同抵压在冷密封圈22上，冷却筒内罐5的内壁与无底内筒29的外壁之间抽真空后形成保温室。The inner tank 5 of the cooling cylinder is also a bottomless structure, and its bottomless end is connected with the bottomless end of the bottomless inner cylinder 29 and pressed together against the cold seal ring 22, the inner wall of the cooling cylinder inner tank 5 and the bottomless The heat preservation chamber is formed after vacuumizing between the outer walls of the inner cylinder 29 .
所述的冷却筒外罐11为中空结构，通过外罐真空口25抽真空后形成真空保温层。The outer tank 11 of the cooling cylinder is a hollow structure, and a vacuum insulation layer is formed after vacuuming through the vacuum port 25 of the outer tank.
本发明的有益效果：Beneficial effects of the present invention:
本发明可以实现对聚合物材料的加工。它能将低温磨料射流喷射到聚合物材料表面，先实现对聚合物材料的冷却，由于材料表面的冷却速率高于材料去除率，因而可以使聚合物在被加工之前可以冷却至目标温度。聚合物大多为疏水材料，在常温下难以进行磨料射流加工，但在低温下，对聚合物进行磨料射流加工，能实现较高的材料去除率。因而本低温磨料射流加工装置可以实现对聚合物材料的加工。The invention can realize the processing of polymer materials. It can spray the low-temperature abrasive jet onto the surface of the polymer material, and first realize the cooling of the polymer material. Since the cooling rate of the material surface is higher than the material removal rate, the polymer can be cooled to the target temperature before being processed. Polymers are mostly hydrophobic materials, and it is difficult to perform abrasive jet processing at room temperature, but at low temperatures, abrasive jet processing of polymers can achieve a high material removal rate. Therefore, the low-temperature abrasive jet processing device can realize the processing of polymer materials.
本发明结构简单，冷却效果好，体积小，能实现多角度任意形状的加工。The invention has the advantages of simple structure, good cooling effect and small volume, and can realize multi-angle and arbitrary shape processing.
附图说明Description of drawings
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图2是本发明的冷却筒的结构示意图。Fig. 2 is a schematic structural view of the cooling cylinder of the present invention.
图中：1、氮气瓶；2、磨料仓；3、快速接头一；4、高温温度探头；5、冷却筒内罐；6、自增压液氮罐；7、控制器；8、液氮压力表；9、电磁阀；10、磨料射流弯管；11、冷却筒外罐；12、低温温度探头；13、快速接头二；14、快速接头三；15、温度信号处理显示系统；16、六坐标工作台；17、工件；18、磨料射流喷嘴；19、气粉混合器；20、排气口；21、热密封圈；22、冷密封圈；23、加液口；24、磨料出口；25、外罐真空口；26、内罐真空口；27、磨料入口，28、法兰盘，29、无底内筒。In the figure: 1. Nitrogen cylinder; 2. Abrasive bin; 3. Quick connector 1; 4. High temperature probe; 5. Cooling cylinder inner tank; 6. Self-pressurized liquid nitrogen tank; 7. Controller; 8. Liquid nitrogen Pressure gauge; 9. Solenoid valve; 10. Abrasive jet elbow; 11. Outer tank of cooling cylinder; 12. Low temperature probe; 13. Quick connector two; 14. Quick connector three; 15. Temperature signal processing and display system; 16. Six coordinate table; 17, workpiece; 18, abrasive jet nozzle; 19, gas powder mixer; 20, exhaust port; 21, heat seal ring; 22, cold seal ring; 23, liquid filling port; 24, abrasive outlet ; 25, outer tank vacuum port; 26, inner tank vacuum port; 27, abrasive inlet, 28, flange, 29, bottomless inner cylinder.
具体实施方式detailed description
下面结合附图和实施例对本发明作进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1-2所示。As shown in Figure 1-2.
一种聚合物用智能可控温低温磨料射流加工装置，如图1所示，它包括：An intelligent temperature-controllable low-temperature abrasive jet processing device for polymers, as shown in Figure 1, includes:
一磨料射流发生系统，所述磨料射流发生系统主要包括氮气瓶1、磨料仓2、气粉混合器19、磨料射流弯管10和磨料射流喷嘴18，磨料仓2中的磨料和氮气瓶1输出的氮气进入气粉混合器19混合后进入磨料射流弯管10进一步冷却至加工温度后从磨料射流喷嘴18喷出对聚合物工件17进行低温射流加工；实际加工时，聚合物工件17处的工作温度可低至－80℃～－190℃。通过改变磨料射流弯管10的长度可改变磨料射流喷嘴18出口处的温度，且长度越长，所得到的温度越低。本发明的磨料射流发生系统与冷却筒之间通过第一活动接头3可实现可拆卸式连接，同样，磨料射流喷嘴18的进口端通过第三活动接头14实现与冷却筒的活动连接，可根据加工对象的不同更换不同的冷却筒或磨料射流系统，实现不同目的的加工An abrasive jet generating system, the abrasive jet generating system mainly includes a nitrogen cylinder 1, an abrasive bin 2, an air powder mixer 19, an abrasive jet elbow 10 and an abrasive jet nozzle 18, the abrasive in the abrasive bin 2 and the output of the nitrogen cylinder 1 The nitrogen enters the air-powder mixer 19 to mix and then enters the abrasive jet elbow 10 to be further cooled to the processing temperature and then sprays out from the abrasive jet nozzle 18 to carry out low-temperature jet processing of the polymer workpiece 17; during actual processing, the work at the polymer workpiece 17 The temperature can be as low as -80°C to -190°C. The temperature at the outlet of the abrasive jet nozzle 18 can be changed by changing the length of the abrasive jet elbow 10, and the longer the length, the lower the temperature obtained. The detachable connection between the abrasive jet generation system of the present invention and the cooling cylinder can be realized through the first movable joint 3. Similarly, the inlet end of the abrasive jet nozzle 18 can be flexibly connected with the cooling cylinder through the third movable joint 14, which can be realized according to Different processing objects can be replaced with different cooling cylinders or abrasive jet systems to achieve different processing purposes
一冷却筒，如图2所示，它包括冷却筒内罐5和冷却筒外罐11，所述的冷却筒外罐11为中空结构，通过外罐真空口25抽真空后形成真空保温层。冷却筒内罐5安装在冷却筒外罐11中并通过法兰盖28实现可拆卸连接，在冷却筒内罐5和冷却筒外罐11的法兰连接面之间安装的热密封圈21。所述的冷却筒内罐5中安装有无底内筒29，冷却筒内罐5与无底内筒29采用焊接方式进行连接，所述的冷却筒内罐5也为无底结构，它的无底端与无底内筒29的无底端相连并抵压在冷密封圈22上，冷却筒内罐5的内壁与无底内筒29的外壁之间抽真空后形成保温室。无底内筒29的有底一端连接有排气口20和磨料入口27，冷却筒内罐5与无底内筒29相抵的一端上安装有加液口23和磨料出口24；所述的冷却筒外罐11还设有外罐真空口25，冷却筒内罐5设有内罐真空口26以便对冷却筒外罐11及冷却筒内罐5进行抽真空提高保温性能；所述的加液口23通过第二快速接头13与电磁阀9的出口管道实现可拆卸式连接。在无底内筒29的无底部安装有低温温度探头12，以用测量磨料射流弯管10上方的温度，当测量温度不高于氮气沸点温度即表示磨料射流弯管10浸没在液氮中，低温温度探头12实时测量无底内筒中的温度并显示在温度显示器上。One cooling cylinder, as shown in Figure 2, it comprises cooling cylinder inner tank 5 and cooling cylinder outer tank 11, described cooling cylinder outer tank 11 is a hollow structure, forms a vacuum insulation layer after vacuumizing through the outer tank vacuum port 25. The inner tank 5 of the cooling cylinder is installed in the outer tank 11 of the cooling cylinder and is detachably connected by a flange cover 28 , and the heat sealing ring 21 installed between the inner tank 5 of the cooling cylinder and the flange connection surface of the outer tank 11 of the cooling cylinder. A bottomless inner cylinder 29 is installed in the cooling cylinder inner tank 5, and the cooling cylinder inner tank 5 and the bottomless inner cylinder 29 are connected by welding, and the cooling cylinder inner tank 5 is also a bottomless structure, and its The bottomless end is connected to the bottomless end of the bottomless inner cylinder 29 and pressed against the cold sealing ring 22, and the inner wall of the cooling cylinder inner tank 5 and the outer wall of the bottomless inner cylinder 29 are evacuated to form a heat preservation chamber. The bottomed end of the bottomless inner cylinder 29 is connected with an exhaust port 20 and an abrasive inlet 27, and the end of the cooling cylinder inner tank 5 and the end of the bottomless inner cylinder 29 is equipped with a liquid filling port 23 and an abrasive outlet 24; The outer tank 11 is also provided with an outer tank vacuum port 25, and the inner tank 5 of the cooling tube is provided with an inner tank vacuum port 26 so as to vacuumize the outer tank 11 of the cooling tube and the inner tank 5 of the cooling tube to improve thermal insulation performance; The port 23 is detachably connected to the outlet pipe of the solenoid valve 9 through the second quick connector 13 . A low-temperature temperature probe 12 is installed at the bottom of the bottomless inner cylinder 29 to measure the temperature above the abrasive jet elbow 10. When the measured temperature is not higher than the boiling point of nitrogen, it means that the abrasive jet elbow 10 is immersed in liquid nitrogen. The low-temperature temperature probe 12 measures the temperature in the bottomless inner cylinder in real time and displays it on the temperature display.
一智能冷却系统，所述智能冷却系统包括一个高温温度探头4、自增压液氮罐6、控制器7和电磁阀9，高温温度探头4安装在排气口20上用于测量无底内筒29中的温度并与控制器7电气连接，控制器根据高温温度探头4控制电磁阀9的开启，电磁阀9安装在连接自增压液氮罐6与加液口23相连的管道上，以便根据测量温度对无底内筒加注液氮，使无底内筒中的温度满足低温加工要求；An intelligent cooling system, the intelligent cooling system includes a high-temperature temperature probe 4, a self-pressurized liquid nitrogen tank 6, a controller 7 and a solenoid valve 9, and the high-temperature temperature probe 4 is installed on the exhaust port 20 for measuring the bottomless inner The temperature in the cylinder 29 is electrically connected with the controller 7, and the controller controls the opening of the solenoid valve 9 according to the high-temperature temperature probe 4, and the solenoid valve 9 is installed on the pipeline connected from the pressurized liquid nitrogen tank 6 to the liquid filling port 23. In order to fill the bottomless inner cylinder with liquid nitrogen according to the measured temperature, so that the temperature in the bottomless inner cylinder can meet the requirements of low temperature processing;
一加工系统，所述的加工系统包括六坐标工作台16，聚合物工件17安装（如粘贴）在六坐标工作台16上并与喷嘴18相对，喷嘴18喷出的低温磨料首先对聚合物工件进行快速冷却，由于聚合物工作的冷却速度大于材料的去除速度，因此，快速冷却后的聚合物工件被磨料快速去除，通过调整喷嘴射流角度和六坐标工作台16带动聚合物工件的移动实现对聚合物工件的加工。在磨料射流出口处和被加工工件背部安装有热电偶，热电偶与温度信号处理显示系统15电气连接以便将热电偶采集到的信号实时显示出来。A processing system, the processing system includes a six-coordinate worktable 16, the polymer workpiece 17 is installed (such as pasted) on the six-coordinate workbench 16 and is opposite to the nozzle 18, and the low-temperature abrasive ejected from the nozzle 18 is first applied to the polymer workpiece Perform rapid cooling, because the cooling rate of the polymer work is greater than the removal rate of the material, therefore, the polymer workpiece after rapid cooling is quickly removed by the abrasive, and the polymer workpiece is moved by adjusting the jet angle of the nozzle and the six-coordinate worktable 16. Machining of polymer workpieces. Thermocouples are installed at the outlet of the abrasive jet and the back of the processed workpiece, and the thermocouples are electrically connected to the temperature signal processing and display system 15 so as to display the signals collected by the thermocouples in real time.
本发明的工作过程如下：氧化铝、碳化硅、碳化硼等磨料在重力作用下从磨料仓2内落入气粉混合器19；氮气瓶1输出高压氮气进入气粉混合器19与磨料混合；在气粉混合器19内形成的磨料射流进入磨料射流弯管10；自增压液氮罐经电磁阀9和加液口23将液氮输入冷却筒内，在冷却筒内对磨料射流进行降温冷却；；高温温度探头4置于排气口20，测量排气口温度并反馈信息给控制器7用于控制电磁阀9开关，实现自动补液，电磁阀9的开启温度可根据产品工况通过多次实验获得；低温温度探头12置于磨料射流弯管10上方，当该点温度不高于氮气沸点温度即表示磨料射流弯管10浸没在液氮中；通过换装不同长度的磨料射流弯管10即可得到不同的磨料射流温度；由磨料射流喷嘴18喷出低温磨料射流至工件17表面进行加工，由六坐标工作台16可调整工件17和磨料射流的相对位置，磨料射流可以以各种入射角度对工件17的各个位置进行加工；温度信号处理显示系统15通过分析热电偶采集的信号实时显示磨料射流出口处温度和工件加工温度。The working process of the present invention is as follows: Abrasives such as aluminum oxide, silicon carbide, and boron carbide fall into the air-powder mixer 19 from the abrasive bin 2 under the action of gravity; nitrogen cylinder 1 outputs high-pressure nitrogen and enters the air-powder mixer 19 to mix with the abrasive; The abrasive jet formed in the gas powder mixer 19 enters the abrasive jet elbow 10; the self-pressurized liquid nitrogen tank enters the liquid nitrogen into the cooling cylinder through the solenoid valve 9 and the liquid filling port 23, and the abrasive jet is cooled in the cooling cylinder Cooling; the high temperature probe 4 is placed at the exhaust port 20 to measure the temperature of the exhaust port and feed back information to the controller 7 for controlling the switch of the solenoid valve 9 to realize automatic liquid replenishment. The opening temperature of the solenoid valve 9 can be determined according to the working conditions of the product. Obtained by multiple experiments; the low temperature probe 12 is placed above the abrasive jet elbow 10, and when the temperature at this point is not higher than the boiling point of nitrogen, it means that the abrasive jet elbow 10 is immersed in liquid nitrogen; The tube 10 can obtain different abrasive jet temperatures; the abrasive jet nozzle 18 sprays the low-temperature abrasive jet to the surface of the workpiece 17 for processing, and the relative position of the workpiece 17 and the abrasive jet can be adjusted by the six-coordinate worktable 16, and the abrasive jet can be in different Various incident angles are used to process various positions of the workpiece 17; the temperature signal processing and display system 15 displays the temperature at the outlet of the abrasive jet and the processing temperature of the workpiece in real time by analyzing the signals collected by the thermocouple.
以上所述为本发明的较佳实施例，并不用于限制本发明，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，这些变化和改进应包含在本发明的保护之内。本发明要求保护范围由所附的权利要求书及同等物界定。同时，尽管本文较多地使用了氮气瓶1，磨料仓2，快速接头一3，高温温度探头4，冷却筒内罐5，自增压液氮罐6，控制器7，液氮压力表8，电磁阀9，磨料射流弯管10，冷却筒外罐11，低温温度探头12，快速接头二13，快速接头三14，温度信号处理显示系统15，六坐标工作台16，工件17，磨料射流喷嘴18，气粉混合器19，排气口20，热密封圈21，冷密封圈22，加液口23，出口24，外罐真空口25，内罐真空口26，入口27等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。The above descriptions are preferred embodiments of the present invention, and are not intended to limit the present invention. On the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements should be included in the present invention. within the protection of the invention. The protection scope of the present invention is defined by the appended claims and their equivalents. At the same time, although this paper uses a lot of nitrogen cylinder 1, abrasive bin 2, quick connector 1 3, high temperature probe 4, cooling cylinder inner tank 5, self-pressurized liquid nitrogen tank 6, controller 7, liquid nitrogen pressure gauge 8 , solenoid valve 9, abrasive jet elbow 10, cooling cylinder outer tank 11, low temperature probe 12, quick connector 2 13, quick connector 3 14, temperature signal processing and display system 15, six-coordinate workbench 16, workpiece 17, abrasive jet Nozzle 18, gas-powder mixer 19, exhaust port 20, heat seal ring 21, cold seal ring 22, liquid filling port 23, outlet 24, outer tank vacuum port 25, inner tank vacuum port 26, inlet 27 and other terms, but The possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.
本发明未涉及部分均与现有技术相同或可采用现有技术加以实现。The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247246.2ACN106965092B (en) | 2017-04-17 | 2017-04-17 | The intelligent controllable temperature low temperature abradant jet processing unit (plant) of polymer |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247246.2ACN106965092B (en) | 2017-04-17 | 2017-04-17 | The intelligent controllable temperature low temperature abradant jet processing unit (plant) of polymer |
| Publication Number | Publication Date |
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| CN106965092Atrue CN106965092A (en) | 2017-07-21 |
| CN106965092B CN106965092B (en) | 2018-09-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710247246.2AActiveCN106965092B (en) | 2017-04-17 | 2017-04-17 | The intelligent controllable temperature low temperature abradant jet processing unit (plant) of polymer |
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| CN (1) | CN106965092B (en) |
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