WO2019237317A1 - Smart heat-compensation mineral casting bed - Google Patents

Smart heat-compensation mineral casting bed Download PDF

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Publication number
WO2019237317A1
WO2019237317A1 PCT/CN2018/091388 CN2018091388W WO2019237317A1 WO 2019237317 A1 WO2019237317 A1 WO 2019237317A1 CN 2018091388 W CN2018091388 W CN 2018091388W WO 2019237317 A1 WO2019237317 A1 WO 2019237317A1
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Prior art keywords
bed
mineral casting
shaped
mineral
pipe
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PCT/CN2018/091388
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French (fr)
Chinese (zh)
Inventor
蔡汉生
蔡桂阳
杜毓斌
黄展源
何锦彬
吴杰
谢创鸿
王虹丽
Original Assignee
巨轮中德机器人智能制造有限公司
巨轮智能装备股份有限公司
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Priority to PCT/CN2018/091388 priority Critical patent/WO2019237317A1/en
Publication of WO2019237317A1 publication Critical patent/WO2019237317A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
    • B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

Definitions

  • the invention relates to an intelligent temperature rise thermally compensated mineral casting bed.
  • the bed uses a steel frame and is filled with mineral materials.
  • a cooling pipe is laid inside the bed and temperature sensors are installed in multiple places to monitor and feedback the temperature of the machine tool in real time.
  • Control system for intelligent control is provided.
  • thermal error is one of the biggest error sources of precision CNC machine tools. To improve the machining accuracy, it is necessary to effectively compensate the thermal error of the machine tool.
  • the most commonly used method is to perform thermal error compensation based on thermal deformation in a numerical control system.
  • the basic definition is to artificially create a new error to offset or greatly weaken the original error that is currently the problem.
  • a mathematical model of the error is established to make the error as artificial as possible.
  • the values are the same as the original error, and the directions are opposite, so as to reduce the processing error and improve the dimensional accuracy of the part.
  • Thermal error compensation within a certain range can improve machining accuracy and help reduce design and manufacturing costs. However, it is a passive and ex post compensation method, and its scope and effectiveness are limited. To improve the accuracy and thermal performance of the machine tool, it is necessary to start with improving the machine's thermal characteristics and thermal stiffness at the design stage to achieve active thermal control of the machine tool.
  • Mineral casting is a new type of mineral casting product made by using artificial granite natural granite scraps and scraps as the main raw materials, adding epoxy resin as auxiliary materials, mixing and stirring, and vibration compaction. It is a new energy-saving and environmentally friendly non-metallic composite material that replaces but is better than cast iron. Mineral castings are cast at room temperature and have a thermal expansion coefficient similar to steel, which can be well integrated with the materials cast into mineral castings; their thermal shrinkage is very small, and there is no local shrinkage, which is higher than traditional cast iron.
  • An object of the present invention is to provide an intelligent temperature rise thermally compensated mineral casting bed with a cooling circuit in response to the above problems.
  • the design idea of the invention is that the bed adopts a steel structure frame and is filled with mineral materials inside, and a cooling circuit connected to an external water cooler is embedded under the screw rod pair and the linear guide rail mounting surface, the tool magazine mounting surface and the turntable mounting surface. Through the temperature sensor connected to the machine tool control system, the temperature of the mineral casting bed is controlled to be evenly distributed.
  • the invention is provided with a mineral casting bed, a lateral metal pipe, a middle metal pipe and a temperature sensor;
  • the mineral casting bed is a steel structure U-shaped frame, the U-shaped frame is filled with mineral materials, and the upper part of the U-shaped frame is A set of screw pairs and linear guides are installed on each side, and the ends of the screw pairs are supported by a motor base and a screw tail mount installed on a U-shaped frame;
  • the screw pair is connected to the servo motor through a coupling, and the linear guide is equipped with Guide rail slider, the guide rail slider is fixedly connected to the cross beam by bolts, the cross beam crosses the top of the mineral casting bed and slides along the linear guide;
  • the side metal pipes are embedded in both sides of the U-shaped frame and from the rear of the mineral casting bed.
  • the middle metal pipe is located below the mounting surface of the tool magazine and the turntable and is distributed to the surroundings.
  • the two side metal pipe pipes and the middle metal pipe pipe are connected to the external water cooler.
  • the water inlet and the water outlet are connected to form a three-way cooling circuit; the temperature sensors are arranged next to the U-shaped parts on both sides of the U-shaped frame, the tool magazine mounting surface and the turntable mounting surface, and the temperature sensor is connected to the machine tool control system .
  • the temperature sensors arranged on the U-shaped portions on both sides of the U-shaped frame are respectively located below the screw rod tailstock and the motor base.
  • the pipe interfaces of the two side metal pipes and the pipe interfaces of the middle metal pipes are respectively passed through an L-shaped joint, a cooling pipe, and an L-shaped three-position joint of the water inlet of the external water cooler and an L-shaped three-position joint of the water outlet. Butt.
  • the bed adopts a mineral casting structure, which has small thermal shrinkage, high seismic performance and low thermal conductivity;
  • Temperature sensors are set in multiple places on the bed to monitor temperature changes in real time and feed back to the control system to intelligently control the bed temperature.
  • the invention has the advantages of small thermal shrinkage, intelligent monitoring and control, and high precision of the machine tool.
  • FIG. 1 is a schematic front view structure diagram of an embodiment of the present invention
  • FIG. 2 is a schematic view of the right-view structure of the embodiment of FIG. 1;
  • FIG. 2 is a schematic view of the right-view structure of the embodiment of FIG. 1;
  • FIG. 3 is a schematic plan view of the embodiment of FIG. 1;
  • FIG. 4 is a schematic diagram of an arrangement structure of a metal pipeline in the middle road.
  • 01 bed of mineral casting
  • 02 temperature sensor
  • 03 servo motor
  • 04 coupling
  • 05 screw rod pair
  • 06 linear guide
  • 07 guide slider
  • 08 beam
  • 09 water cooling Machine
  • A Tool magazine mounting surface
  • B Turntable mounting surface.
  • this embodiment is an intelligent temperature rise thermally compensated mineral casting bed, which is provided with a mineral casting bed 01, a lateral metal pipe 13, a middle metal pipe 14 and a temperature sensor 02; the mineral casting The bed is a steel structure U-shaped frame.
  • the U-shaped frame is filled with mineral materials.
  • a set of screw pair 05 and linear guide 06 are installed on the upper side of the U-shaped frame.
  • the head and tail of the screw pair are installed on the U-shaped frame.
  • the motor base 16 and the screw tailstock 15 are supported on the top; the screw pair is connected to the servo motor 03 through the coupling 04, the linear guide is equipped with a guide slider 07, and the guide slider is fixedly connected to the cross beam 08 by bolts.
  • the cross beam crosses the mineral
  • the upper part of the casting bed slides along the linear guide;
  • the lateral metal pipes 13 are embedded horizontally in the left and right sides of the U-frame of the mineral casting bed, are located under the screw rod pair, the linear guide installation surface and are distributed downward, and
  • the pipe joint protrudes from the rear end face of the bed of mineral casting;
  • the middle metal pipe 14 is located below the tool magazine mounting surface A and the turntable mounting surface B and is distributed around the two sides of the side metal pipe and the middle metal pipe
  • the pipe connections are passed through L
  • the cooling pipe 11 is connected with the water inlet L-shaped three-position joint 10 and the water outlet L-shaped three-position joint 10 of the external water cooler 09 to form a three-way cooling circuit;
  • the temperature sensor 02 is located below the screw rod tailstock 15 and the motor base 16, respectively, next to the tool magazine mounting surface and the turntable mounting surface.
  • the temperature sensor is connected to the machine tool control system.
  • the servo motor 03 drives the screw rod pair 05 to rotate through the coupling 04, and is guided by the linear guide rail 06 and the guide rail slider 07 to pull the cross beam 08 to move back and forth.
  • the heat generated during the rotation of the screw rod 05 is transmitted to the motor base 16 and the screw tailstock 15 and then transmitted to the mineral casting bed 01, causing the temperature of the bed to rise; at the same time, the slide rail 07 moves on the linear guide, and friction occurs.
  • the heat will also be transferred to the mineral casting bed 01 through the contact surface, causing the bed temperature to rise.
  • the water cooler 09 starts to work.
  • the coolant of the external water cooler 09 is delivered to the bed through the metal pipe 13 and the middle metal pipe 14 on both sides.
  • the mounting surfaces of components such as turntables and turntables are compensated for temperature rise and heat, and the entire cooling cycle of the mineral casting bed is also avoided to avoid the deformation of the bed due to uneven temperature and the accuracy of the machine tool.
  • temperature sensors are installed throughout the bed 02 , Real-time monitoring of temperature changes, and feedback to the machine tool control system, control the coolant output of water cooler 09, intelligently control the bed temperature.

Abstract

A smart heat-compensation mineral casting bed, provided with a mineral casting bed (01), lateral metal pipes (13), an intermediate metal pipe (14), and temperature sensors (02). The mineral casting bed (01) is a U-shaped steel frame, whereof the inside is filled with mineral; the lateral metal pipes (13) are embedded on both sides of the U-shaped frame; the intermediate metal pipe (14) is located below a tool magazine mounting surface (A) and a rotating platform mounting surface (B) and spreads around; the mouths of the two lateral metal pipes (13) and the mouths of the intermediate metal pipe (14) are respectively connected to the water inlet and the water outlet of an external water cooler to form three cooling loops; the temperature sensors (02) are arranged beside the U-shaped portion on two sides of the U-shaped frame, the tool magazine mounting surface (A), and the rotating platform mounting surface (B); the temperature sensors (02) are connected to a machine control system; the bed has little heat shrinkage and high precision and can achieve intelligent monitoring and control.

Description

智能温升热补偿矿物铸件床身Intelligent temperature rise thermal compensation mineral casting bed 技术领域Technical field
本发明涉及一种智能温升热补偿矿物铸件床身，床身采用钢结构框架且内部填充矿物质材料，床身内部铺设冷却管路并在多处安装温度传感器，对机床温度实时监测反馈给控制系统，进行智能控制。The invention relates to an intelligent temperature rise thermally compensated mineral casting bed. The bed uses a steel frame and is filled with mineral materials. A cooling pipe is laid inside the bed and temperature sensors are installed in multiple places to monitor and feedback the temperature of the machine tool in real time. Control system for intelligent control.
背景技术Background technique
随着数控机床整机及零部件设计、制造、装配和材料等相关技术的不断进步，几何误差、刀具磨损、伺服等误差在数控机床整体误差中所占的比例逐渐减小。但是，热误差是精密数控机床最大的误差源之一，要提高加工精度就必须对机床热误差进行有效的补偿。With the continuous advancement of related technologies such as the design and manufacture of CNC machine tools and parts, assembly, and materials, geometric errors, tool wear, and servo errors have gradually decreased in the overall error of CNC machine tools. However, thermal error is one of the biggest error sources of precision CNC machine tools. To improve the machining accuracy, it is necessary to effectively compensate the thermal error of the machine tool.
虽然人们自20世纪40年代就已经开始对机床热特性进行研究，但是由于传统机床在精度和速度上没有现在制造要求那么高，热误差占比不高，且由于机床及其部件类型和负载的多样性、结构的复杂性以及机床温度场合热变形受多种因素的影响，故其研究普遍都是针对具体机床，没有形成系统的理论、方法和分析工具，这与当前机床高速高精度发展的要求不相适应。Although people have begun to study the thermal characteristics of machine tools since the 1940s, because the traditional machine tools are not as precise as current manufacturing requirements, the thermal error proportion is not high, and due to the type of machine tools and their components and the load. Diversity, structural complexity, and thermal deformation of the machine tool temperature are affected by many factors, so its research is generally aimed at specific machine tools, and there is no systematic theory, method and analysis tools, which are in line with the current high-speed and high-precision development of machine tools. The requirements are not compatible.
目前最常用的是在数控系统中根据热变形进行热误差补偿。其基本定义是人为地制造一种新的误差去抵消或大大减弱当前成为问题的原始误差，通过统计、分析、归纳和掌握原始误差的特点和规律，建立误差数学模型，尽量使人为造成的误差和原始误差两者的数值相等、方向相反，从而减少加工误差，提高零件加工尺寸精度。At present, the most commonly used method is to perform thermal error compensation based on thermal deformation in a numerical control system. The basic definition is to artificially create a new error to offset or greatly weaken the original error that is currently the problem. Through statistics, analysis, induction, and mastering the characteristics and rules of the original error, a mathematical model of the error is established to make the error as artificial as possible. The values are the same as the original error, and the directions are opposite, so as to reduce the processing error and improve the dimensional accuracy of the part.
热误差补偿在一定范围内可提高加工精度，有助于降低设计制造成本。但是，它是一种被动的和事后补偿的方法，其补偿范围和有效性具有一定的限制。要提高机床的精度和热性能，必须在设计阶段，从提高机床的热特性、热刚度入手，实现机床的主动热控。Thermal error compensation within a certain range can improve machining accuracy and help reduce design and manufacturing costs. However, it is a passive and ex post compensation method, and its scope and effectiveness are limited. To improve the accuracy and thermal performance of the machine tool, it is necessary to start with improving the machine's thermal characteristics and thermal stiffness at the design stage to achieve active thermal control of the machine tool.
矿物铸件是用人造花岗石天然花岗石的碎料、下脚料为主要原料，加入环氧树脂为辅料，经过混合搅拌、振动密实而制成的新型矿物铸造产 品。它是一种替代铸铁但优于铸铁的新型节能、环保的非金属合成材料。矿物铸件采用常温铸造，具有和钢铁相似的热膨胀系数，可以和铸入矿物铸件中的材料很好地整合在一起；其热收缩性很小，而且不存在局部收缩，比传统的铸铁精度要高很多；其吸震性要比传统的铸铁强10倍，特别是对大幅度的震动，具有极强的吸震能力；其对温度的变化不敏感，导热性比金属要低很多，有效地把机床因受热引起的几何尺寸误差控制在最小，从而保证了机床的精度。Mineral casting is a new type of mineral casting product made by using artificial granite natural granite scraps and scraps as the main raw materials, adding epoxy resin as auxiliary materials, mixing and stirring, and vibration compaction. It is a new energy-saving and environmentally friendly non-metallic composite material that replaces but is better than cast iron. Mineral castings are cast at room temperature and have a thermal expansion coefficient similar to steel, which can be well integrated with the materials cast into mineral castings; their thermal shrinkage is very small, and there is no local shrinkage, which is higher than traditional cast iron. Many; its shock absorption is 10 times stronger than traditional cast iron, especially for large-scale vibration, has a strong shock absorption ability; it is not sensitive to temperature changes, thermal conductivity is much lower than metal, effectively The geometrical error caused by heat is controlled to a minimum, thereby ensuring the accuracy of the machine tool.
发明内容Summary of the Invention
本发明的目的是针对上述问题，提供一种具有冷却回路的智能温升热补偿矿物铸件床身。An object of the present invention is to provide an intelligent temperature rise thermally compensated mineral casting bed with a cooling circuit in response to the above problems.
本发明的设计思路是床身采用钢结构框架且内部填充矿物质材料，并在丝杆副和线性导轨安装面、刀库安装面及转台安装面下方预埋与外置水冷机连接的冷却回路，通过温度传感器连接机床控制系统而控制矿物铸件床身的温度均匀分布。The design idea of the invention is that the bed adopts a steel structure frame and is filled with mineral materials inside, and a cooling circuit connected to an external water cooler is embedded under the screw rod pair and the linear guide rail mounting surface, the tool magazine mounting surface and the turntable mounting surface. Through the temperature sensor connected to the machine tool control system, the temperature of the mineral casting bed is controlled to be evenly distributed.
本发明，设置有矿物铸件床身、侧向金属管路、中路金属管路和温度传感器；矿物铸件床身为钢结构U型框架，U型框架内部填充有矿物质材料，U型框架的上侧各安装有一套丝杆副和线性导轨，丝杆副的首尾分别由安装在U型框架上的电机座、丝杆尾座支撑；丝杆副通过联轴器连接伺服电机，线性导轨装配有导轨滑块，导轨滑块通过螺栓固定连接横梁，横梁横跨在矿物铸件床身的上方且沿线性导轨滑动；侧向金属管路预埋于U型框架两侧且从矿物铸件床身的后端面伸出管接口，中路金属管路位于刀库安装面及转台安装面下方且向四周分布，两路侧向金属管路的管接口和中路金属管路的管接口分别与外置水冷机的进水口、出水口连接而构成三路冷却回路；温度传感器布设在U型框架的两侧U型部、刀库安装面及转台安装面旁边，温度传感器连接机床控制系统。The invention is provided with a mineral casting bed, a lateral metal pipe, a middle metal pipe and a temperature sensor; the mineral casting bed is a steel structure U-shaped frame, the U-shaped frame is filled with mineral materials, and the upper part of the U-shaped frame is A set of screw pairs and linear guides are installed on each side, and the ends of the screw pairs are supported by a motor base and a screw tail mount installed on a U-shaped frame; the screw pair is connected to the servo motor through a coupling, and the linear guide is equipped with Guide rail slider, the guide rail slider is fixedly connected to the cross beam by bolts, the cross beam crosses the top of the mineral casting bed and slides along the linear guide; the side metal pipes are embedded in both sides of the U-shaped frame and from the rear of the mineral casting bed. The end faces protrude from the pipe interface. The middle metal pipe is located below the mounting surface of the tool magazine and the turntable and is distributed to the surroundings. The two side metal pipe pipes and the middle metal pipe pipe are connected to the external water cooler. The water inlet and the water outlet are connected to form a three-way cooling circuit; the temperature sensors are arranged next to the U-shaped parts on both sides of the U-shaped frame, the tool magazine mounting surface and the turntable mounting surface, and the temperature sensor is connected to the machine tool control system .
本发明，布设在U型框架的两侧U型部的温度传感器分别位于丝杆尾座及电机座的下方。In the present invention, the temperature sensors arranged on the U-shaped portions on both sides of the U-shaped frame are respectively located below the screw rod tailstock and the motor base.
本发明，两路侧向金属管路的管接口和中路金属管路的管接口分别通过L型接头、冷却管与外置水冷机的进水口L型三位接头、出水口L型三位接头对接。According to the present invention, the pipe interfaces of the two side metal pipes and the pipe interfaces of the middle metal pipes are respectively passed through an L-shaped joint, a cooling pipe, and an L-shaped three-position joint of the water inlet of the external water cooler and an L-shaped three-position joint of the water outlet. Butt.
本发明，具有如下积极效果：The present invention has the following positive effects:
1)、床身采用矿物铸造结构，热收缩性小、抗震性能高、导热性低；1) The bed adopts a mineral casting structure, which has small thermal shrinkage, high seismic performance and low thermal conductivity;
2)、床身内部设计多组冷却循环管路，保证床身内部温度均匀；2) Design multiple sets of cooling circulation pipes inside the bed to ensure uniform temperature inside the bed;
3)、床身多处设置温度传感器，实时监测温度变化，并反馈给控制系统，对床身温度进行智能控制。3) Temperature sensors are set in multiple places on the bed to monitor temperature changes in real time and feed back to the control system to intelligently control the bed temperature.
本发明，具有热收缩性小、智能监测控制及机床精度高的优点。The invention has the advantages of small thermal shrinkage, intelligent monitoring and control, and high precision of the machine tool.
下面实施例结合附图说明对本发明作进一步的说明。The following embodiments further illustrate the present invention with reference to the accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明的一个实施例的主视结构示意图；FIG. 1 is a schematic front view structure diagram of an embodiment of the present invention; FIG.
图2是图1实施例的右视结构示意图；FIG. 2 is a schematic view of the right-view structure of the embodiment of FIG. 1; FIG.
图3是图1实施例的俯视结构示意图；3 is a schematic plan view of the embodiment of FIG. 1;
图4是中路金属管路的布置结构示意图。FIG. 4 is a schematic diagram of an arrangement structure of a metal pipeline in the middle road.
图中，01、矿物铸件床身；02、温度传感器；03、伺服电机；04、联轴器；05、丝杆副；06、线性导轨；07、导轨滑块；08、横梁；09、水冷机；10、L型三位接头；11、冷却管；12、L型接头；13、侧向金属管路；14、中路金属管路；15、丝杆尾座；16、电机座；A、刀库安装面；B、转台安装面。In the figure, 01, bed of mineral casting; 02, temperature sensor; 03, servo motor; 04, coupling; 05, screw rod pair; 06, linear guide; 07, guide slider; 08, beam; 09, water cooling Machine; 10, L-type three-position joint; 11, cooling pipe; 12, L-type joint; 13, lateral metal pipeline; 14, middle metal pipeline; 15, screw tailstock; 16, motor base; A, Tool magazine mounting surface; B. Turntable mounting surface.
具体实施方式detailed description
参照图1至图4，本实施例是一种智能温升热补偿矿物铸件床身，设置有矿物铸件床身01、侧向金属管路13、中路金属管路14和温度传感器02；矿物铸件床身为钢结构U型框架，U型框架内部填充有矿物质材料，U型框架的上侧各安装有一套丝杆副05和线性导轨06，丝杆副的首尾分别由安装在U型框架上的电机座16、丝杆尾座15支撑；丝杆副通过联轴器04连接伺服电机03，线性导轨装配有导轨滑块07，导轨滑块通过螺栓 固定连接横梁08，横梁横跨在矿物铸件床身的上方且沿线性导轨滑动；侧向金属管路13水平预埋于矿物铸件床身U型框架左右两侧中，均位于丝杆副、线性导轨安装面下方并向下分布，且从矿物铸件床身的后端面伸出管接口；中路金属管路14位于刀库安装面A及转台安装面B下方且向四周分布，两路侧向金属管路的管接口和中路金属管路的管接口分别通过L型接头12、冷却管11与外置水冷机09的进水口L型三位接头10、出水口L型三位接头10对接而构成三路冷却回路；布设在U型框架的两侧U型部的温度传感器02分别位于丝杆尾座15及电机座16的下方、刀库安装面及转台安装面旁边，温度传感器连接机床控制系统。1 to 4, this embodiment is an intelligent temperature rise thermally compensated mineral casting bed, which is provided with a mineral casting bed 01, a lateral metal pipe 13, a middle metal pipe 14 and a temperature sensor 02; the mineral casting The bed is a steel structure U-shaped frame. The U-shaped frame is filled with mineral materials. A set of screw pair 05 and linear guide 06 are installed on the upper side of the U-shaped frame. The head and tail of the screw pair are installed on the U-shaped frame. The motor base 16 and the screw tailstock 15 are supported on the top; the screw pair is connected to the servo motor 03 through the coupling 04, the linear guide is equipped with a guide slider 07, and the guide slider is fixedly connected to the cross beam 08 by bolts. The cross beam crosses the mineral The upper part of the casting bed slides along the linear guide; the lateral metal pipes 13 are embedded horizontally in the left and right sides of the U-frame of the mineral casting bed, are located under the screw rod pair, the linear guide installation surface and are distributed downward, and The pipe joint protrudes from the rear end face of the bed of mineral casting; the middle metal pipe 14 is located below the tool magazine mounting surface A and the turntable mounting surface B and is distributed around the two sides of the side metal pipe and the middle metal pipe The pipe connections are passed through L The joint 12, the cooling pipe 11 is connected with the water inlet L-shaped three-position joint 10 and the water outlet L-shaped three-position joint 10 of the external water cooler 09 to form a three-way cooling circuit; The temperature sensor 02 is located below the screw rod tailstock 15 and the motor base 16, respectively, next to the tool magazine mounting surface and the turntable mounting surface. The temperature sensor is connected to the machine tool control system.
本发明，在机床工作状态下，伺服电机03通过联轴器04，驱动丝杆副05旋转，通过线性导轨06、导轨滑块07导向，拉动横梁08前后移动。丝杆副05旋转过程中产生的热量传导到电机座16及丝杆尾座15，再传递到矿物铸件床身01，引起床身温升；同时导轨滑块07在线性导轨上运动，摩擦产生的热量也会通过接触面传递到矿物铸件床身01，引起床身温升。According to the present invention, in the working state of the machine tool, the servo motor 03 drives the screw rod pair 05 to rotate through the coupling 04, and is guided by the linear guide rail 06 and the guide rail slider 07 to pull the cross beam 08 to move back and forth. The heat generated during the rotation of the screw rod 05 is transmitted to the motor base 16 and the screw tailstock 15 and then transmitted to the mineral casting bed 01, causing the temperature of the bed to rise; at the same time, the slide rail 07 moves on the linear guide, and friction occurs. The heat will also be transferred to the mineral casting bed 01 through the contact surface, causing the bed temperature to rise.
在机床启动的同时，水冷机09开始工作，通过两侧金属管13和中路金属管14将外置水冷机09的冷却液输送至床身，既对丝杆副05、线性导轨06、刀库、转台等零部件的安装面进行温升热补偿，也对矿物铸件床身整体进行冷却循环，避免因为温度不均而导致床身变形及影响机床精度；同时，床身各处设置温度传感器02，实时监测温度变化，并反馈给机床控制系统，控制水冷机09的冷却液输出，对床身温度进行智能控制。At the same time as the machine tool is started, the water cooler 09 starts to work. The coolant of the external water cooler 09 is delivered to the bed through the metal pipe 13 and the middle metal pipe 14 on both sides. The mounting surfaces of components such as turntables and turntables are compensated for temperature rise and heat, and the entire cooling cycle of the mineral casting bed is also avoided to avoid the deformation of the bed due to uneven temperature and the accuracy of the machine tool. At the same time, temperature sensors are installed throughout the bed 02 , Real-time monitoring of temperature changes, and feedback to the machine tool control system, control the coolant output of water cooler 09, intelligently control the bed temperature.

Claims (3)

  1. 一种智能温升热补偿矿物铸件床身，其特征在于：设置有矿物铸件床身(01)、侧向金属管路(13)、中路金属管路(14)和温度传感器(02)；所述矿物铸件床身为钢结构U型框架，U型框架内部填充有矿物质材料，U型框架的上侧各安装有一套丝杆副(05)和线性导轨(06)，丝杆副的首尾分别由安装在U型框架上的电机座(16)、丝杆尾座(15)支撑；所述丝杆副通过联轴器(04)连接伺服电机(03)，所述线性导轨装配有导轨滑块(07)，所述导轨滑块通过螺栓固定连接横梁(08)，所述横梁横跨在矿物铸件床身的上方且沿线性导轨滑动；所述侧向金属管路预埋于U型框架两侧且从矿物铸件床身的后端面伸出管接口，所述中路金属管路位于刀库安装面(A)及转台安装面(B)下方且向四周分布，两路侧向金属管路的管接口和中路金属管路的管接口分别与外置水冷机(09)的进水口、出水口连接而构成三路冷却回路；所述温度传感器布设在U型框架的两侧U型部、刀库安装面及转台安装面旁边，温度传感器连接机床控制系统。An intelligent temperature rise thermally compensated mineral casting bed is characterized by being provided with a mineral casting bed (01), a lateral metal pipe (13), a middle metal pipe (14), and a temperature sensor (02); The bed of the mineral casting is a steel structure U-shaped frame. The U-shaped frame is filled with mineral materials. The upper side of the U-shaped frame is equipped with a set of screw rod pairs (05) and linear guides (06). It is supported by a motor base (16) and a screw tailstock (15) respectively mounted on a U-shaped frame; the screw rod pair is connected to a servo motor (03) through a coupling (04), and the linear guide is equipped with a guide Slider (07), the guide rail slider is fixedly connected to the cross beam (08) by bolts, the cross beam crosses over the bed of the mineral casting and slides along the linear guide; the side metal pipeline is embedded in a U-shape Both sides of the frame protrude from the rear end of the bed of mineral casting. The middle metal pipe is located below the tool magazine installation surface (A) and the turntable installation surface (B) and distributed to the surroundings. The pipe interface of the road and the metal pipe of the middle pipe are connected to the water inlet and outlet of the external water cooler (09) respectively. Road cooling circuit; said temperature sensor is laid on both sides next to the U-shaped portion of the U-shaped frame, the magazine turret mounting surface and mounting surface, the temperature sensor is connected to the machine control system.
  2. 根据权利要求1所述的智能温升热补偿矿物铸件床身，其特征在于：布设在U型框架的两侧U型部的温度传感器分别位于所述丝杆尾座(15)及电机座(16)的下方。The intelligent temperature rise thermally compensated mineral casting bed according to claim 1, characterized in that temperature sensors arranged on the U-shaped portions on both sides of the U-shaped frame are respectively located on the screw tailstock (15) and the motor base ( 16).
  3. 根据权利要求1或2所述的智能温升热补偿矿物铸件床身，其特征在于：所述两路侧向金属管路的管接口和中路金属管路的管接口分别通过L型接头(12)、冷却管(11)与外置水冷机(09)的进水口L型三位接头(10)、出水口L型三位接头(10)对接。The intelligent temperature rise thermally compensated mineral casting bed according to claim 1 or 2, characterized in that the pipe interface of the two side metal pipes and the pipe interface of the middle metal pipe are respectively passed through an L-shaped joint (12 ), The cooling pipe (11) is connected with the L-shaped three-position joint (10) of the water inlet of the external water cooler (09) and the L-shaped three-position joint (10) of the water outlet.
PCT/CN2018/091388 2018-06-15 2018-06-15 Smart heat-compensation mineral casting bed WO2019237317A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61257742A (en) * 1985-05-08 1986-11-15 Hitachi Seiko Ltd Automatic machine tool
JP2001239438A (en) * 2000-02-28 2001-09-04 Enshu Ltd Thermal displacement compensation method for machine tool, device thereof, storage medium, and machining method in machine tool
CN2873409Y (en) * 2005-11-28 2007-02-28 陈志平 Heat compensating device for complex processing machine
CN104483896A (en) * 2014-11-18 2015-04-01 四川普什宁江机床有限公司 Method for realizing thermal compensation of lead screw of numerical control machine tool
CN206780050U (en) * 2017-02-23 2017-12-22 上海睿涛信息科技有限公司 Vertical type numerically controlled machine with thermal stretching compensation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61257742A (en) * 1985-05-08 1986-11-15 Hitachi Seiko Ltd Automatic machine tool
JP2001239438A (en) * 2000-02-28 2001-09-04 Enshu Ltd Thermal displacement compensation method for machine tool, device thereof, storage medium, and machining method in machine tool
CN2873409Y (en) * 2005-11-28 2007-02-28 陈志平 Heat compensating device for complex processing machine
CN104483896A (en) * 2014-11-18 2015-04-01 四川普什宁江机床有限公司 Method for realizing thermal compensation of lead screw of numerical control machine tool
CN206780050U (en) * 2017-02-23 2017-12-22 上海睿涛信息科技有限公司 Vertical type numerically controlled machine with thermal stretching compensation

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