CN103419091A - Support for adjusting laser displacement sensor with multiple freedom degrees - Google Patents
Support for adjusting laser displacement sensor with multiple freedom degrees Download PDFInfo
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Abstract
本发明属于微型铣床振动在线测量领域，是一种将激光位移传感器固定到微型铣床工作台，并能多自由度调节激光位移传感器位置的支架。该支架设计中，采用球关节为自由度调节的核心元件，配以设置于底座板上的U型槽、阶梯槽，及T形板上的阶梯槽分别进行X、Y、Z轴方向上一定范围的自由调节。该支架的底座板可与微型铣床工作台固定，转接板可与激光位移传感器固定，解决微型铣床振动测量的难题。本发明所述的激光位移传感器支架具有结构简单、使用灵活、调节范围大，对不同微型铣床适应性强等特点，具有实际应用价值。
The invention belongs to the field of on-line vibration measurement of a micro-milling machine, and relates to a support for fixing a laser displacement sensor to a workbench of a micro-milling machine and adjusting the position of the laser displacement sensor with multiple degrees of freedom. In the design of the bracket, the ball joint is used as the core component of the degree of freedom adjustment, and the U-shaped groove and the stepped groove on the base plate, and the stepped groove on the T-shaped plate are used to adjust the X, Y, and Z axes respectively. Free adjustment of the range. The base plate of the bracket can be fixed with the workbench of the micro milling machine, and the adapter plate can be fixed with the laser displacement sensor, so as to solve the problem of vibration measurement of the micro milling machine. The laser displacement sensor bracket described in the invention has the characteristics of simple structure, flexible use, large adjustment range, strong adaptability to different micro milling machines, etc., and has practical application value.
Description
技术领域technical field
本发明属于微型铣床振动测量领域，涉及一种多自由度调节激光位移传感器的支架。The invention belongs to the field of vibration measurement of micro-milling machines, and relates to a bracket for adjusting a laser displacement sensor with multiple degrees of freedom.
背景技术Background technique
近年来，各领域对精密微小零部件的需求日益迫切，微小零部件呈现出结构复杂、材料多样、尺寸高精度的发展趋势，对加工技术提出了更高要求。基于微型机床的微铣削（Micro-milling）技术是加工微小零件和高精密零件的一种新兴加工技术，具有加工材料范围广、能实现三维曲面铣削、加工精度高、能耗小、设备投资少、效率高等突出优点，能加工出精度高达5μm以上，硬度大于45HRC的零件，曲面质量达到0.2μm或更小，细筋零件的厚度小至0.5μm或更小。主要用在需要制造极小的高精密零件的特殊行业，例如生物－医疗装备、光学、微电子以及微小塑料制品的微型模具以及微小金属零件的加工等，近年来引起国内外专家的广泛关注。微铣削加工过程是动态铣削过程，是机床结构和切削过程相互耦合的过程,在动态铣削过程中会产生在刀具和工件之间产生强烈的相对振动.它不仅降低了微型铣床的加工质量和切削效率,而且对机床和微铣刀的使用寿命带来了不利的影响,避免和抑制振动,是设计、制造和使用微型铣床时一个重要问题。因此，实现微型铣床加工过程中刀具和工件之间相对振动的测量具有重要意义。In recent years, the demand for precision micro parts has become increasingly urgent in various fields. Micro parts have shown a development trend of complex structure, diverse materials, and high precision dimensions, which put forward higher requirements for processing technology. Micro-milling technology based on micro machine tools is an emerging processing technology for processing tiny parts and high-precision parts. It has a wide range of processing materials, can realize three-dimensional curved surface milling, high processing accuracy, low energy consumption, and low equipment investment. , high efficiency and other outstanding advantages, it can process parts with a precision of more than 5μm and a hardness of more than 45HRC, the quality of the curved surface can reach 0.2μm or less, and the thickness of thin rib parts can be as small as 0.5μm or less. It is mainly used in special industries that need to manufacture extremely small high-precision parts, such as micro-molds for bio-medical equipment, optics, microelectronics, and tiny plastic products, as well as the processing of tiny metal parts. It has attracted widespread attention from domestic and foreign experts in recent years. The micro-milling process is a dynamic milling process, which is a process in which the structure of the machine tool and the cutting process are coupled to each other. During the dynamic milling process, strong relative vibrations will be generated between the tool and the workpiece. It not only reduces the processing quality and cutting of the micro-milling machine Efficiency, but also has a negative impact on the service life of machine tools and micro-milling cutters, avoiding and suppressing vibration is an important issue in the design, manufacture and use of micro-milling machines. Therefore, it is of great significance to realize the measurement of the relative vibration between the tool and the workpiece during the machining process of the micro milling machine.
传统机床的振动测量可以将激光传感器安装在工件或刀具上，从而测得刀具和工件的相对振动情况，但微型铣床空间小，测量元件难以直接安装到机床或工件上。因此研发微型铣床激光位移传感器支架是十分有必要的。Brock A.Mascardelli，Simon S.Park，Theodor Freiheit在《Substructure Couplingof Microend Mills to Aid in the Suppression of Chatter》中采用激光位移传感器测量微型铣床振动，但只能实现一个方向上的振动测量，没有设计相关的支架，无法自由调节。微型铣床加工零部件过程中在X、Y、Z三个方向都会产生振动，一个方向上的振动难以全面反映真实的振动情况。Vibration measurement of traditional machine tools can install the laser sensor on the workpiece or the tool to measure the relative vibration of the tool and the workpiece, but the space of the micro milling machine is small, and it is difficult to directly install the measuring element on the machine tool or the workpiece. Therefore, it is very necessary to develop a micro-milling machine laser displacement sensor bracket. Brock A.Mascardelli, Simon S.Park, Theodor Freiheit used laser displacement sensor to measure the vibration of micro-milling machine in "Substructure Coupling of Microend Mills to Aid in the Suppression of Chatter", but it can only realize the vibration measurement in one direction, and there is no design correlation The bracket cannot be adjusted freely. During the process of micro milling machine processing parts, vibrations will be generated in the three directions of X, Y, and Z, and the vibration in one direction cannot fully reflect the real vibration situation.
针对国内外采用激光位移传感器只能测量微型铣床一个方向上的振动问题，本发明提出一种用来固定激光位移传感器并可实现多个方向振动测量的支架。Aiming at the problem that the laser displacement sensor can only measure the vibration in one direction of the micro milling machine at home and abroad, the present invention proposes a support for fixing the laser displacement sensor and realizing vibration measurement in multiple directions.
发明内容Contents of the invention
本发明要解决的技术问题是针对微型铣床现有相对振动测量用激光位移传感器固定技术不足的问题，设计一种将激光位移传感器固定到微型铣床工作台，并能多自由度调节激光位移传感器位置的支架，解决微型铣床振动测量难题。The technical problem to be solved by the present invention is to design a method for fixing the laser displacement sensor to the workbench of the micro milling machine and to adjust the position of the laser displacement sensor with multiple degrees of freedom in view of the insufficient fixing technology of the laser displacement sensor for relative vibration measurement of the micro milling machine. The bracket solves the vibration measurement problem of micro milling machine.
本发明采用的技术方案是：The technical scheme adopted in the present invention is:
一种多自由度调节激光位移传感器的支架，有以下二种组装方式：A multi-degree-of-freedom adjustment laser displacement sensor bracket has the following two assembly methods:
第一种组装方式，Z轴方向低位高度：激光位移传感器安装在转接板的通孔上；转接板通过转接板螺纹孔、球关节旋转轴与球关节连接；球关节通过球关节螺纹孔、底座板螺纹孔与底座板相连。The first assembly method, low height in the Z-axis direction: the laser displacement sensor is installed on the through hole of the adapter plate; the adapter plate is connected to the ball joint through the threaded hole of the adapter plate and the rotation axis of the ball joint; the ball joint is threaded through the ball joint The hole and the threaded hole of the base plate are connected with the base plate.
第二种组装方式，Z轴方向高位高度：激光位移传感器安装在转接板的通孔上；转接板通过转接板螺纹孔、球关节旋转轴与球关节连接；球关节通过球关节螺纹孔、球关节底座螺纹孔与球关节底座相连；球关节底座通过球关节底座通孔、T形板阶梯槽与T形板相连；T形板通过T形板通孔、底座板阶梯槽与底座板相连。用上述的支架实现激光位移传感器支架在微型铣床工作台上的安装。是将底座板通过底座板U型槽与机床工作台相连。The second assembly method, high height in the Z-axis direction: the laser displacement sensor is installed on the through hole of the adapter plate; the adapter plate is connected to the ball joint through the threaded hole of the adapter plate and the rotation axis of the ball joint; the ball joint is threaded through the ball joint The hole and the threaded hole of the ball joint base are connected to the ball joint base; the ball joint base is connected to the T-shaped plate through the through hole of the ball joint base and the stepped groove of the T-shaped plate; the T-shaped plate is connected to the base through the through-hole of the T-shaped plate and the stepped groove of the base plate board connected. The above-mentioned bracket is used to realize the installation of the laser displacement sensor bracket on the workbench of the micro milling machine. It is to connect the base plate with the workbench of the machine tool through the U-shaped groove of the base plate.
附图说明Description of drawings
图1为传感器支架分解的轴测图。Figure 1 is an exploded isometric view of the sensor bracket.
图2为球关节底座3的剖分图。FIG. 2 is an exploded view of the
图3为球关节示意图。Figure 3 is a schematic diagram of a ball joint.
图4为转接板的剖分图。Figure 4 is an exploded view of the adapter board.
图5为T形板的示意图。Figure 5 is a schematic diagram of a T-shaped plate.
图6为底座板的示意图。Figure 6 is a schematic diagram of the base plate.
图7为传感器支架的轴测图。Figure 7 is an isometric view of the sensor bracket.
图中：1转接板；2球关节；3球关节底座；4T形板；5底座板；6球关节底座螺纹孔；7球关节底座通孔；8球关节旋转轴；9球关节锁定旋钮；10球关节螺纹孔；11转接板通孔；12转接板螺纹孔；13T形板阶梯槽；14T形板通孔；15底座板螺纹孔；16底座板U型槽；17底座板阶梯槽。In the figure: 1 adapter plate; 2 ball joint; 3 ball joint base; 4 T-shaped plate; 5 base plate; 6 ball joint base threaded hole; 7 ball joint base through hole; 8 ball joint rotation shaft; 9 ball joint locking knob ;10 Ball joint threaded hole; 11 Adapter plate through hole; 12 Adapter plate threaded hole; 13 T-shaped plate step groove; 14 T-shaped plate through hole; 15 Base plate threaded hole; 16 Base plate U-shaped groove; groove.
具体实施方式Detailed ways
结合附图和技术方案详细说明本发明的具体实施方式。The specific implementation manner of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions.
本实施例中的球关节选用曼富图482RC2球形云台，最大负荷为2kg，足以承载激光位移传感器与转接板1的重量。The ball joint in this embodiment uses a Manfrotto 482RC2 ball head with a maximum load of 2kg, which is enough to bear the weight of the laser displacement sensor and the
（1）激光位移传感器支架的组装。(1) Assembly of laser displacement sensor bracket.
本激光位移传感器支架提供了两种组装方式，可根据激光位移传感器所需高度来具体选择。The laser displacement sensor bracket provides two assembly methods, which can be selected according to the required height of the laser displacement sensor.
第一种组装方式，即激光位移传感器在Z轴方向高度较低的组装方式为：利用转接板通孔11将激光位移传感器安装在转接板1上；转接板1通过转接板螺纹孔12及球关节旋转轴8与球关节2连接；球关节2通过球关节螺纹孔10及底座板螺纹孔15与底座板5相连。The first assembly method, that is, the assembly method of the laser displacement sensor with a lower height in the Z-axis direction is: use the through
第二种组装方式，即激光位移传感器在Z轴方向高度较高的组装方式为：利用转接板通孔11将激光位移传感器安装在转接板1上；转接板1通过转接板螺纹孔12及球关节旋转轴8与球关节2连接；球关节2通过球关节螺纹孔10及球关节底座螺纹孔6与球关节底座3相连；球关节底座3通过球关节底座通孔7及T形板阶梯槽13与T形板4相连；T形板4通过T形板通孔14及底座板阶梯槽17与底座板5相连。The second assembly method, that is, the assembly method of the laser displacement sensor with a higher height in the Z-axis direction is: use the through
（2）激光位移传感器支架在微型铣床工作台上的安装。(2) The installation of the laser displacement sensor bracket on the workbench of the micro milling machine.
底座板5通过底座板U型槽16与机床工作台相连，实现激光位移传感器支架在微型铣床工作台上的安装The
（3）传感器支架的自由度调节。(3) Degree of freedom adjustment of the sensor bracket.
底座板U型槽16配合微型铣床工作台使底座板5可在微型铣床Y轴方向移动；T形板通孔14配合底座板阶梯槽17使T形板可在X轴方向调节；球关节底座通孔7配合T形板阶梯槽13使球关节底座3可在Z轴方向上调节；另外球关节2还可以通过球关节螺纹孔10及底座板螺纹孔15与底座板5相连，以降低激光位移传感器在Z轴方向上的高度；旋开球关节2上的球关节锁定旋钮9，球关节旋转轴8可绕Z轴方向360度旋转，绕Y轴方向90度旋转。The U-shaped
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| CN103624633A (en) * | 2013-12-09 | 2014-03-12 | 大连理工大学 | Micro-milling vibration precision measurement system taking laser micro-displacement sensor as measuring element |
| CN107121059A (en) * | 2016-02-24 | 2017-09-01 | 上海希孚工业自动化设备有限公司 | A kind of laser on-line measuring device |
| CN107598674A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | A kind of high precision electro spindle thermal detection means |
| CN108917619A (en) * | 2018-05-24 | 2018-11-30 | 江苏理工学院 | A kind of unidirectional servo detection device of more sizes of laser and its detection method |
| CN109605129A (en) * | 2019-01-10 | 2019-04-12 | 江苏理工学院 | A two-axis self-stabilizing laser monitoring tool vibration device |
| CN110548688A (en) * | 2019-08-05 | 2019-12-10 | 山东泓瑞光电科技有限公司 | Adjusting device for identifying material inlet and outlet of LED sorting machine silicon wafer stage |
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| CN109605129A (en) * | 2019-01-10 | 2019-04-12 | 江苏理工学院 | A two-axis self-stabilizing laser monitoring tool vibration device |
| CN110548688A (en) * | 2019-08-05 | 2019-12-10 | 山东泓瑞光电科技有限公司 | Adjusting device for identifying material inlet and outlet of LED sorting machine silicon wafer stage |
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| CN103419091B (en) | 2016-12-28 |
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