WO2020168994A1 - 一种针对于大型薄壁件的冰冻支撑装置及方法 - Google Patents

一种针对于大型薄壁件的冰冻支撑装置及方法 Download PDF

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Publication number
WO2020168994A1
WO2020168994A1 PCT/CN2020/075484 CN2020075484W WO2020168994A1 WO 2020168994 A1 WO2020168994 A1 WO 2020168994A1 CN 2020075484 W CN2020075484 W CN 2020075484W WO 2020168994 A1 WO2020168994 A1 WO 2020168994A1
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Prior art keywords
support
freezing
support plate
hydraulic prop
ice
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PCT/CN2020/075484
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English (en)
French (fr)
Inventor
郭江
许永波
鲍岩
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大连理工大学
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Application filed by 大连理工大学 filed Critical 大连理工大学
Priority to US17/424,418 priority Critical patent/US11618117B2/en
Publication of WO2020168994A1 publication Critical patent/WO2020168994A1/zh

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Classifications

    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/086—Work-clamping means other than mechanically-actuated using a solidifying liquid, e.g. with freezing, setting or hardening means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/0076—Gripping heads and other end effectors with means, e.g. Pelletier elements, for freezing a fluid interface between the gripping head and an object to be gripped

Definitions

  • the invention belongs to the field of mechanical processing, and relates to a freezing support device and method for large thin-walled parts.
  • mirror processing technology is mainly used to process large-scale thin-walled parts.
  • flexible support and follow-up support are mainly used to support large thin-walled parts.
  • a follow-up support device and method for mirror milling of thin-walled parts (patent publication number is CN108127424A).
  • the main principle is to control multiple support heads through a program to achieve follow-up support during the milling of large thin-walled parts.
  • the present invention proposes a freezing support device and method for large thin-walled parts.
  • the main mechanism is to realize the freezing support of the large thin-walled parts through the freezing system and auxiliary systems.
  • the invention utilizes ice with a certain thickness formed on the support side of the processing area, so that ice is formed to support the workpiece, and as the processing progresses, the ice is always used as the support to achieve the effect of follow-up support.
  • the realization of this freezing support method requires relatively simple equipment and does not require large-scale equipment.
  • the present invention has the effect of tightening the workpiece, but no tightening force or deformation is generated during the process of supporting the workpiece; the support method has the effect of follow-up support and can be used for large workpieces The support; and will not damage the support surface of the workpiece, and protect the support surface.
  • This method is based on the fluidity of water. Since the water can be formed into any shape, it can better adapt to the processing requirements and can realize curved support with any curvature.
  • a freezing support device for large thin-walled parts including a freezing system and an auxiliary system.
  • the freezing system mainly includes a heating source 9, a freezing source 14, water 13, a flexible film 8 and a support plate 7.
  • the heating source 9 and the freezing source 14 are installed on the supporting plate 7, the flexible film 8 is connected to the supporting plate 7, and the enclosed area formed by the flexible film 8 and the supporting plate 7 contains water 13, heating source 9 and freezing source 14.
  • the main function of water 13 is to provide a basis for freezing.
  • the heating source 9 can mainly provide heat so that the ice 10 can melt.
  • the main function of the freezing source 14 is to make the water 13 quickly freeze into ice 10.
  • the flexible film 8 is a flexible bag whose shape changes with changes in force, and is used to store water 13.
  • the supporting plate 7 mainly provides a substrate for the heating source 9, the freezing source 14, the water 13 and the flexible film 8.
  • the supporting plate 7 is connected with the piston rod 15.
  • the auxiliary system mainly includes a rotating device, a moving plate 3 and a guide rail for realizing the movement of the supporting plate 7 in the X, Y, and Z directions.
  • the rotating device is composed of two identical hydraulic prop devices connected together to form a hydraulic prop device A and B.
  • the left end of the hydraulic prop device is connected to the support plate 7, and the right end of the hydraulic prop device is connected to the moving plate 3.
  • the inside of the hydraulic prop device is used to place the hydraulic oil 5.
  • the left end of the hydraulic oil 5 is provided with a piston 6 and a piston rod 15 in sequence.
  • the controller controls the reciprocating movement of the piston rod 15 by controlling the in and out of the hydraulic oil 5 in the hydraulic prop device.
  • the support plate 7 moves in the Z direction to ensure that the relative position of the support plate 7 and the tool tip point remains unchanged.
  • the distance between the support plate 7 and the large thin-walled piece 12 should be greater than the minimum thickness of the ice 10 to be formed.
  • the minimum thickness of the ice 10 needs to meet the processing requirements, and the support force provided by the minimum thickness of the ice 10 should be equal to the cutting force .
  • the rotating device can rotate along the axis of the A and B hydraulic prop devices.
  • the moving board 3 is a board connected to the Y guide rail 1 on the right side, and its main function is to provide X-direction support for the rotating device.
  • the said guide rail is connected with the servo system and includes Y guide rail 1 and Z guide rail 2.
  • the moving plate 3 is installed on the Y guide rail 1.
  • the Y guide rail 1 can move on the Z guide rail 2, so as to realize the movement of the moving plate 3 in the Y and Z directions. mobile.
  • a freezing support method for large thin-walled parts is based on a freezing system and an auxiliary system, and includes the following steps:
  • the first step when it is not processed, the refrigeration source 14 on the support plate 7 connected to the A hydraulic prop device 4 cools, so that the water 13 between the A support plate 7 and the A flexible film 8 freezes 10;
  • the formed ice 10 plays a role of supporting the large thin-walled piece 12, and the icing area is denoted as "A icing area”.
  • Step 2 Start processing.
  • the tool 11 first processes the "A icing zone”.
  • the freezing source 14 on the support plate 7 connected to the B hydraulic prop device 16 cools, so that the B support plate 7 and the B flexible film 8
  • the water 13 in the middle becomes ice 10, which is recorded as "Freezing Zone B"; in this process, before the processing of "Freezing Zone A" is completed, the freezing of water 13 is completed in "Freezing Zone B".
  • the third step when the cutter 11 processes the "B icing zone", the heating source 9 on the support plate 7 connected to the A hydraulic prop device 4 works, so that part of the ice 10 in the "A icing zone" melts.
  • Step 4 Make the rotating device rotate around the axis of the B hydraulic prop device 16 so that the A hydraulic prop device 4 to the next area to be processed, forming the next "A icing zone".
  • Step 5 Control the movement of the guide rail so that the moving plate 3 is in the center of the rotating device.
  • Step 6 When the cutter 11 is processed to the "A freezing zone", the heating source 9 on the support plate 7 connected to the B hydraulic prop device 16 works, so that part of the ice 10 in the "B freezing zone” melts.
  • Step 7 Make the rotating device rotate around the axis of the A hydraulic prop device 4, so that the B hydraulic prop device 16 to the next area to be processed, forming the next "B icing zone".
  • Step 8 Repeat steps 3 to 7 until the processing of the large thin-walled part 12 is completed.
  • the present invention has the following beneficial effects: the method simplifies the structure of the support, requires simpler equipment, saves device space, and has a lower cost; the support method plays a role in tightening the workpiece, but No tightening force is generated during the process of supporting the workpiece, and no tightening deformation of the workpiece occurs; this support method is a follow-up support during the processing process, which meets the support requirements of large workpieces; this method avoids scratches on the support surface of the workpiece and protects This method is based on the fluidity of water, and because water can be formed into any shape, it can realize curved surface support with any curvature; the present invention adopts frozen support, mainly using ice formation and melting to clean, and will not cause machine tool pollution .
  • Figure 1 is a flow chart of the principle of the present invention.
  • a freezing support device for large thin-walled parts including a freezing system and an auxiliary system.
  • the freezing system mainly includes a heating source 9, a freezing source 14, water 13, a flexible film 8 and a support plate 7.
  • the heating source 9 and the freezing source 14 are installed on the supporting plate 7, the flexible film 8 is connected to the supporting plate 7, and the enclosed area formed by the flexible film 8 and the supporting plate 7 contains water 13, heating source 9 and freezing source 14.
  • the main function of water 13 is to provide a basis for freezing.
  • the heating source 9 can mainly provide heat so that the ice 10 can melt.
  • the main function of the freezing source 14 is to make the water 13 quickly freeze into ice 10.
  • the flexible film 8 is a flexible bag whose shape changes with changes in force, and is used to store water 13.
  • the supporting plate 7 mainly provides a substrate for the heating source 9, the freezing source 14, the water 13 and the flexible film 8.
  • the supporting plate 7 is connected with the piston rod 15.
  • the auxiliary system mainly includes a rotating device, a moving plate 3 and a guide rail for realizing the movement of the supporting plate 7 in the X, Y, and Z directions.
  • the rotating device is composed of two identical hydraulic prop devices connected together to form a hydraulic prop device A and B.
  • the left end of the hydraulic prop device is connected to the support plate 7, and the right end of the hydraulic prop device is connected to the moving plate 3.
  • the inside of the hydraulic prop device is used to place the hydraulic oil 5.
  • the left end of the hydraulic oil 5 is provided with a piston 6 and a piston rod 15 in sequence.
  • the controller controls the reciprocating movement of the piston rod 15 by controlling the in and out of the hydraulic oil 5 in the hydraulic prop device.
  • the support plate 7 moves in the Z direction to ensure that the relative position of the support plate 7 and the tool tip point remains unchanged.
  • the distance between the support plate 7 and the large thin-walled piece 12 should be greater than the minimum thickness of the ice 10 to be formed.
  • the minimum thickness of the ice 10 needs to meet the processing requirements, and the support force provided by the minimum thickness of the ice 10 should be equal to the cutting force .
  • the rotating device can rotate along the axis of the A and B hydraulic prop devices.
  • the moving board 3 is a board connected to the Y guide rail 1 on the right side, and its main function is to provide X-direction support for the rotating device.
  • the said guide rail is connected with the servo system, including Y guide rail 1 and Z guide rail 2.
  • the moving plate 3 is installed on the Y guide rail 1.
  • the Y guide rail 1 can move on the Z guide rail 2, so as to realize the movement of the moving plate 3 in the Y and Z directions. mobile.
  • a freezing support method for large thin-walled parts is based on a freezing system and an auxiliary system, and includes the following steps:
  • the first step when it is not processed, the refrigeration source 14 on the support plate 7 connected to the A hydraulic prop device 4 cools, so that the water 13 between the A support plate 7 and the A flexible film 8 freezes 10;
  • the formed ice 10 plays a role of supporting the large thin-walled piece 12, and the icing area is denoted as "A icing area”.
  • Step 2 Start processing.
  • the tool 11 first processes the "A icing zone”.
  • the freezing source 14 on the support plate 7 connected to the B hydraulic prop device 16 cools, so that the B support plate 7 and the B flexible film 8
  • the water 13 in the middle becomes ice 10, which is recorded as "Freezing Zone B"; in this process, before the processing of "Freezing Zone A" is completed, the freezing of water 13 is completed in "Freezing Zone B".
  • the third step when the cutter 11 processes the "B icing zone", the heating source 9 on the support plate 7 connected to the A hydraulic prop device 4 works, so that part of the ice 10 in the "A icing zone" melts.
  • Step 4 Make the rotating device rotate around the axis of the B hydraulic prop device 16 so that the A hydraulic prop device 4 to the next area to be processed, forming the next "A icing zone".
  • Step 5 Control the movement of the guide rail so that the moving plate 3 is in the center of the rotating device.
  • Step 6 When the cutter 11 is processed to the "A freezing zone", the heating source 9 on the support plate 7 connected to the B hydraulic prop device 16 works, so that part of the ice 10 in the "B freezing zone” melts.
  • Step 7 Make the rotating device rotate around the axis of the A hydraulic prop device 4, so that the B hydraulic prop device 16 to the next area to be processed, forming the next "B icing zone".
  • Step 8 Repeat steps 3 to 7 until the processing of the large thin-walled part 12 is completed.

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  • Mechanical Engineering (AREA)
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Abstract

一种针对于薄壁件的冰冻支撑装置和支撑方法，冰冻支撑装置的柔性薄膜(8)与支撑板(7)连接形成的密闭区域里存有水(13)、加热源(9)以及冷冻源(14)；水(13)通过冷冻源(14)形成冰(10)，冰(10)通过加热源(9)融化；转动装置可以沿着液压支柱装置（4,16）的轴线旋转；液压支柱装置（4,16）中的液压油(5)左端依次设有活塞(6)、活塞杆(15)，支撑板(7)与活塞杆(15)连接；控制器通过控制液压支柱装置中液压油(5)的进出控制活塞杆(15)的往复运动，实现支撑板(7)在Z方向上移动，进而保证支撑板(7)与刀尖点的相对位置不变。冰冻支撑装置和支撑方法简化了支撑的结构，保护支撑表面；起到随动支撑的效果，可用于大型工件支撑，实现任意曲率的曲面支撑。

Description

一种针对于大型薄壁件的冰冻支撑装置及方法 技术领域
本发明属于机械加工领域，涉及一种针对于大型薄壁件的冰冻支撑装置及方法。
 背景技术
近年来，由于大型薄壁件具有重量轻、节省材料以及整体性强的优点，在大型零件的使用过程中得到了人们的青睐，尤其像对工件的重量有严格要求的航空航天领域；随着大型薄壁件的广泛应用，对其加工成为了一大难题。大型薄壁零件具有刚性差、强度弱，在加工过程中极容易产生变形，影响工件的尺寸精度、形状精度、位置精度和表面粗糙度以至于很难保证零件的加工质量。
      目前，为了减小加工过程中大型薄壁件的变形，主要采用镜像加工技术来加工大型薄壁件，其中主要采用柔性支撑以及随动支撑的方法来支撑大型薄壁件。例如，一种薄壁件镜像铣削随动顶撑装置及方法（专利公开号是 CN108127424A），其主要原理是在大型薄壁件铣削加工过程中，通过程序控制多个支撑头，实现随动支撑的效果；一种用于镜像铣的气动式变刚度的柔性随动顶推头（专利公开号是CN106334960B），其主要机理是利用气缸以及万向滚珠实现柔性支撑的效果；虽然此种支撑方法起到了减小变形的目的，不过其支撑方法较为复杂，需要一台五轴机床，成本昂贵；而且在加工过程中，支撑头的移动会有一定的延迟性，对加工产生影响；支撑头的同时由于支撑头相对于大型薄壁件的移动，支撑头会在支撑表面产生划擦，对支撑表面产生损伤；由于其支撑方法依赖于五轴机床，使得其占用的空间较大。
结合以上所述，目前用于大型薄壁件的支撑方法虽然很多，不过其支撑方法较为复杂，且存在相应的问题，如何实现高效、方便快速而且更加简单地支撑大型薄壁件成为机械加工领域一大问题。
 技术问题
为了解决上述问题，本发明提出一种针对于大型薄壁件的冰冻支撑装置及方法，主要机理是通过冰冻系统与辅助系统来实现对大型薄壁件的冰冻支撑。本发明利用在加工区的支撑侧结成一定厚度的冰，使得结成冰来支撑工件，随着加工的进行，始终以冰作为支撑起到随动支撑的效果。实现该冰冻支撑方法，对设备要求较为简单，不需要大型设备。与传统支撑方法相比，本发明起到加紧工件的作用，但在支撑工件过程中不会产生加紧力，也不会产生加紧变形；该支撑方法起到了随动支撑的效果，可用于大型工件的支撑；且不会对工件的支撑表面产生损伤，保护支撑表面。该方法基于水的流动性，由于水可以形成任意形状，能够更好适应加工要求，可实现任意曲率的曲面支撑。
 技术解决方案
为了达到上述目的，本发明的技术方案为：
一种针对于大型薄壁件的冰冻支撑装置，包括冰冻系统以及辅助系统。
所述的冰冻系统主要包括加热源9、冷冻源14、水13、柔性薄膜8以及支撑板7。加热源9以及冷冻源14安装在支撑板7上，柔性薄膜8与支撑板7连接，柔性薄膜8与支撑板7形成的密闭区域里存有水13、加热源9以及冷冻源14。水13的主要作用是为冰冻提供基础。所述的加热源9主要可以提供热量，使得冰10可以融化。所述的冷冻源14主要作用是使得水13快速结成冰10。所述的柔性薄膜8是一种形状随受力变化而改变的柔性袋子，用于存放水13。所述的支撑板7主要为加热源9、冷冻源14、水13以及柔性薄膜8提供基体。所述的支撑板7与活塞杆15连接。
所述的辅助系统主要包括转动装置、移动板3以及导轨，用于实现支撑板7在X、Y、Z方向的移动。所述的转动装置由两个完全一样的液压支柱装置连接在一起构成记为A、B液压支柱装置，所述的液压支柱装置的左端连接支撑板7，液压支柱装置右端与移动板3相连，液压支柱装置内部用于放置液压油5，液压油5左端依次设有活塞6、活塞杆15，控制器通过控制液压支柱装置中液压油5的进出，来控制活塞杆15的往复运动，从而实现支撑板7在Z方向上移动，以此保证支撑板7与刀尖点的相对位置保持不变。支撑板7与大型薄壁件12之间的间隔应大于形成冰10的最小厚度，所述冰10的最小厚度需要满足加工的要求，最小厚度的冰10所提供的支撑力大小应等于切削力。转动装置可以沿着A、B液压支柱装置的轴线旋转。所述的移动板3为右侧与Y导轨1连接的板子，其主要作用是为转动装置提供X方向支撑。所述的导轨与伺服系统连接，包括Y导轨1以及Z导轨2，移动板3安装在Y导轨1上，Y导轨1可以在Z导轨2上移动，实现移动板3在Y、Z方向上的移动。
一种针对于大型薄壁件的冰冻支撑方法，该方法的实现基于冰冻系统以及辅助系统，包括以下步骤：
第一步：未加工时，与A液压支柱装置4相连的支撑板7上的冷冻源14制冷，使得在A支撑板7和A柔性薄膜8之间的水13结成冰10；此时结成的冰10起到支撑大型薄壁件12的作用，结冰区记为“A结冰区”。
第二步：开始加工，刀具11先加工“A结冰区”，此时与B液压支柱装置16相连的支撑板7上的冷冻源14制冷，使得在B支撑板7和B柔性薄膜8之间的水13结成冰10，记为“B结冰区”；此过程中“A结冰区”加工完成前，“B结冰区”完成水13的结冰。
第三步：刀具11加工“B结冰区”时，与A液压支柱装置4相连的支撑板7上的加热源9工作，使得在“A结冰区”中的部分冰10融化。
第四步：使得转动装置围绕B液压支柱装置16的轴线旋转，使得A液压支柱装置4至下一个待加工区域，形成下一个“A结冰区”。
第五步：控制导轨移动，使得移动板3处于转动装置的正中央。
第六步：刀具11加工至“A结冰区”时，与B液压支柱装置16相连的支撑板7上的加热源9工作，使得在“B结冰区”中的部分冰10融化。
第七步：使得转动装置围绕A液压支柱装置4的轴线旋转，使得B液压支柱装置16至下一个待加工区域，形成下一个“B结冰区”。
第八步：重复第三步至第七步，直到完成大型薄壁件12的加工。
 有益效果
与现有技术相比，本发明的有益效果为：该方法简化了支撑的结构，对设备要求较为简单，节省了装置空间，同时成本较低；该支撑方法起到加紧工件的作用，但在支撑工件过程中不会产生加紧力，工件不会产生加紧变形；该支撑方法在加工过程中属于随动支撑，满足大型工件的支撑要求；该方法避免了对工件的支撑表面产生划擦，保护了支撑表面；该方法基于水的流动性，由于水可以形成任意形状，可实现任意曲率的曲面支撑；本发明采用冰冻支撑，主要利用冰的形成以及融化其方法清洁，不会造成机床的污染。
 附图说明
图1为本发明原理流程图。
图中：1Y导轨；2Z导轨；3移动板；4 A液压支柱装置；5液压油；6活塞；7支撑板；8柔性薄膜；9加热源；10冰；11刀具；12大型薄壁件；13水；14冷冻源；15活塞杆；16 B液压支柱装置。
 本发明的实施方式
以下结合技术方案和附图详细说明本发明的具体实施方式。
一种针对于大型薄壁件的冰冻支撑装置，包括冰冻系统以及辅助系统。
所述的冰冻系统主要包括加热源9、冷冻源14、水13、柔性薄膜8以及支撑板7。加热源9以及冷冻源14安装在支撑板7上，柔性薄膜8与支撑板7连接，柔性薄膜8与支撑板7形成的密闭区域里存有水13、加热源9以及冷冻源14。水13的主要作用是为冰冻提供基础。所述的加热源9主要可以提供热量，使得冰10可以融化。所述的冷冻源14主要作用是使得水13快速结成冰10。所述的柔性薄膜8是一种形状随受力变化而改变的柔性袋子，用于存放水13。所述的支撑板7主要为加热源9、冷冻源14、水13以及柔性薄膜8提供基体。所述的支撑板7与活塞杆15连接。
所述的辅助系统主要包括转动装置、移动板3以及导轨，用于实现支撑板7在X、Y、Z方向的移动。所述的转动装置由两个完全一样的液压支柱装置连接在一起构成记为A、B液压支柱装置，所述的液压支柱装置的左端连接支撑板7，液压支柱装置右端与移动板3相连，液压支柱装置内部用于放置液压油5，液压油5左端依次设有活塞6、活塞杆15，控制器通过控制液压支柱装置中液压油5的进出，来控制活塞杆15的往复运动，从而实现支撑板7在Z方向上移动，以此保证支撑板7与刀尖点的相对位置保持不变。支撑板7与大型薄壁件12之间的间隔应大于形成冰10的最小厚度，所述冰10的最小厚度需要满足加工的要求，最小厚度的冰10所提供的支撑力大小应等于切削力。转动装置可以沿着A、B液压支柱装置的轴线旋转。所述的移动板3为右侧与Y导轨1连接的板子，其主要作用是为转动装置提供X方向支撑。所述的导轨与伺服系统连接，包括Y导轨1以及Z导轨2，移动板3安装在Y导轨1上，Y导轨1可以在Z导轨2上移动，实现移动板3在Y、Z方向上的移动。
一种针对于大型薄壁件的冰冻支撑方法，该方法的实现基于冰冻系统以及辅助系统，包括以下步骤：
第一步：未加工时，与A液压支柱装置4相连的支撑板7上的冷冻源14制冷，使得在A支撑板7和A柔性薄膜8之间的水13结成冰10；此时结成的冰10起到支撑大型薄壁件12的作用，结冰区记为“A结冰区”。
第二步：开始加工，刀具11先加工“A结冰区”，此时与B液压支柱装置16相连的支撑板7上的冷冻源14制冷，使得在B支撑板7和B柔性薄膜8之间的水13结成冰10，记为“B结冰区”；此过程中“A结冰区”加工完成前，“B结冰区”完成水13的结冰。
第三步：刀具11加工“B结冰区”时，与A液压支柱装置4相连的支撑板7上的加热源9工作，使得在“A结冰区”中的部分冰10融化。
第四步：使得转动装置围绕B液压支柱装置16的轴线旋转，使得A液压支柱装置4至下一个待加工区域，形成下一个“A结冰区”。
第五步：控制导轨移动，使得移动板3处于转动装置的正中央。
第六步：刀具11加工至“A结冰区”时，与B液压支柱装置16相连的支撑板7上的加热源9工作，使得在“B结冰区”中的部分冰10融化。
第七步：使得转动装置围绕A液压支柱装置4的轴线旋转，使得B液压支柱装置16至下一个待加工区域，形成下一个“B结冰区”。
第八步：重复第三步至第七步，直到完成大型薄壁件12的加工。
以上所述实施例仅表达本发明的实施方式，但并不能因此而理解为对本发明专利的范围的限制，应当指出，对于本领域的技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些均属于本发明的保护范围。

Claims (2)

  1. 一种针对于薄壁件的冰冻支撑装置，其特征在于，所述的冰冻支撑装置包括冰冻系统以及辅助系统；
    所述的冰冻系统包括加热源（9）、冷冻源（14）、水（13）、柔性薄膜（8）以及支撑板（7）；所述的加热源（9）以及冷冻源（14）安装在支撑板（7）上，柔性薄膜（8）与支撑板（7）连接，柔性薄膜（8）与支撑板（7）形成的密闭区域里存有水（13）、加热源（9）以及冷冻源（14）；水（13）通过冷冻源（14）形成冰（10），冰（10）通过加热源（9）融化；所述的支撑板（7）与活塞杆（15）连接；所述的支撑板（7）与大型薄壁件（12）之间的间隔大于形成冰（10）的最小厚度，冰（10）的最小厚度需要满足加工的要求，最小厚度的冰（10）所提供的支撑力大小应等于切削力；
    所述的辅助系统主要包括转动装置、移动板（3）以及导轨，导轨与伺服系统连接，包括Y导轨（1）以及Z导轨（2），用于实现支撑板（7）在X、Y、Z方向的移动；所述的转动装置由两个完全一样的液压支柱装置连接在一起构成A、B液压支柱装置（4、16），转动装置可以沿着A、B液压支柱装置的轴线旋转；所述的每个液压支柱装置的左端连接支撑板（7），右端与移动板（3）相连，液压支柱装置内部用于放置液压油（5）；液压油（5）左端依次设有活塞（6）、活塞杆（15），控制器通过控制液压支柱装置中液压油（5）的进出控制活塞杆（15）的往复运动，实现支撑板（7）在Z方向上移动，进而保证支撑板（7）与刀尖点的相对位置不变；所述的移动板（3）为右侧与Y导轨（1）连接的板状结构，为转动装置提供X方向支撑。
  2. 一种针对于大型薄壁件的冰冻支撑方法，其特征在于，该方法的实现基于冰冻系统以及辅助系统，包括以下步骤：
    第一步：未加工时，与A液压支柱装置（4）相连的支撑板（7）上的冷冻源（14）制冷，使得在A支撑板（7）和柔性薄膜（8）之间的水（13）结成冰（10）；此时结成的冰（10）起到支撑大型薄壁件（12）的作用，结冰区记为“A结冰区”；
    第二步：开始加工，刀具（11）先加工“A结冰区”，此时与B液压支柱装置（16）相连的支撑板（7）上的冷冻源（14）制冷，使得在B支撑板（7）和B柔性薄膜（8）之间的水（13）结成冰（10），记为“B结冰区”；此过程中“A结冰区”加工完成前，“B结冰区”完成水（13）的结冰；
    第三步：刀具（11）加工“B结冰区”时，与A液压支柱装置（4）相连的支撑板（7）上的加热源（9）工作，使得在“A结冰区”中的部分冰（10）融化；
    第四步：使得转动装置围绕B液压支柱装置（16）的轴线旋转，使得A液压支柱装置（4）至下一个待加工区域，形成下一个“A结冰区”；
    第五步：控制导轨移动，使得移动板（3）处于转动装置的正中央；
    第六步：刀具（11）加工至“A结冰区”时，与B液压支柱装置（16）相连的支撑板（7）上的加热源（9）工作，使得在“B结冰区”中的部分冰（10）融化；
    第七步：使得转动装置围绕A液压支柱装置（4）的轴线旋转，使得B液压支柱装置（16）至下一个待加工区域，形成下一个“B结冰区”；
    第八步：重复第三步至第七步，直到完成大型薄壁件（12）的加工。
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