WO2021103334A1 - 一种大型螺旋桨斜床身进给加工机床 - Google Patents

一种大型螺旋桨斜床身进给加工机床 Download PDF

Info

Publication number
WO2021103334A1
WO2021103334A1 PCT/CN2020/077100 CN2020077100W WO2021103334A1 WO 2021103334 A1 WO2021103334 A1 WO 2021103334A1 CN 2020077100 W CN2020077100 W CN 2020077100W WO 2021103334 A1 WO2021103334 A1 WO 2021103334A1
Authority
WO
WIPO (PCT)
Prior art keywords
bed
feed
column
inclined column
machine tool
Prior art date
Application number
PCT/CN2020/077100
Other languages
English (en)
French (fr)
Inventor
王永青
刘天然
刘海波
刘阔
李特
郭东明
Original Assignee
大连理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大连理工大学 filed Critical 大连理工大学
Priority to US17/052,668 priority Critical patent/US11370041B2/en
Publication of WO2021103334A1 publication Critical patent/WO2021103334A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/16—Working surfaces curved in two directions
    • B23C3/18—Working surfaces curved in two directions for shaping screw-propellers, turbine blades, or impellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/002—Gantry-type milling machines
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/012—Portals
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/28—Electric drives
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/14—Milling machines not designed for particular work or special operations with rotary work-carrying table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2215/00—Details of workpieces
    • B23C2215/04—Aircraft components
    • B23C2215/045—Propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2215/00—Details of workpieces
    • B23C2215/12—Propellers for boats

Definitions

  • the invention belongs to the technical field of numerical control machine tools, and relates to a large-scale propeller inclined bed feed processing machine tool.
  • the large propeller is one of the core components of the ship's power system, and its manufacturing quality directly determines the ship's propulsion efficiency, maneuverability, vibration characteristics and safety.
  • the shape of the blade is a three-dimensional spiral surface, which makes the process of the propeller complicated and difficult to manufacture.
  • the traditional semi-mechanized processing method has low efficiency, poor accuracy and high labor intensity, which severely restricts the processing accuracy of large propellers.
  • the hub and blade root due to the large diameter of the blade, even the numerical control machining method can only ensure its processing integrity by lengthening the overhang length of the main shaft.
  • the rigidity of the process system is closely related to the overhang elongation of the main shaft.
  • the increase of the spindle overhang length significantly reduces its rigidity, especially in the process of high-feed milling or grinding, the low system rigidity can easily cause the spindle to deform, and the machining quality of the large propeller cannot be guaranteed under the action of large cutting force. Therefore, in order to make the spindle components of the machining lathe have high rigidity, small vibration, small deformation, low noise, and good dynamic performance against forced vibration and self-excited vibration, the innovative design of the device is used to coordinate the interaction between the machine tool and the large propeller. The geometric relationship ensures that the inclined column feed bed moves between the two blades, thereby reducing the overhang of the main shaft and improving the rigidity of the system, realizing high-quality processing for large propellers.
  • Zhao Hu et al. disclosed a six-axis five-linked propeller machining center in the invention patent CN200910038368.6.
  • the device is composed of a front base, a rear base, an X-direction slide plate, a column, a Y-direction slide plate, etc., to realize the stability processing of large propellers.
  • the movement mechanism of the device is numerous and complicated, and it is difficult to ensure its machining accuracy and quality.
  • the axis of the propeller needs to be parallel to the ground during the machining process, which is difficult to operate.
  • the main technical problem to be solved by the present invention is to overcome the shortcomings of the existing methods and face the high-quality processing requirements of large-scale propellers, and invent a large-scale propeller inclined bed feed processing machine tool.
  • the inclined column feed bed is innovatively designed, which effectively reduces the overhang of the main shaft and ensures the machining rigidity, and solves the problem of poor machining quality of large propellers caused by machine tool vibration;
  • the designed feed processing machine tool has excellent Stable and compact structure, effectively reducing the footprint;
  • the feed processing machine has 4 degrees of freedom, avoiding the error coupling caused by multi-axis linkage control, and ensuring the machining accuracy of the parts.
  • a large-scale propeller inclined bed feed processing machine tool includes an inclined column feed bed 1, a machine tool spindle 2, a workpiece rotary table 3, a large propeller 4 and a bed feed mechanism 5; among them, the inclined column feed
  • the bed 1 includes two types: vertical inclined column feed bed and inverted inclined column feed bed.
  • Workpiece rotary table 3 includes two types of workpiece rotary table form A and workpiece rotary table form B.
  • the bed The feeding mechanism 5 includes two types: a floor type feeding mechanism and a gantry type feeding mechanism. According to different types of inclined column feeding bed 1, different types of workpiece rotary table 3 and bed feeding mechanism 5 are selected.
  • the workpiece rotary table 3 is a workpiece rotary table form A
  • the bed feeding mechanism 5 is a floor type feeding mechanism , Specifically:
  • the machine tool spindle 2 includes a swing head motor 2.1, a spindle motor 2.2, a spindle 2.3, a tool holder 2.4, and a tool 2.5.
  • the machine tool spindle 2 is controlled to slide up and down along the linear guide 1.3 through the linear motor 1.4 and the lead screw 1.5.
  • the swing head motor 2.1 is located in the generous slot 1.8 of the inclined column feed bed 1, and controls the spindle 2.3 to swing around the inclined column feed bed 1, ensuring that the tool 2.5 can process the hub 4.1, the blade root 4.4.3 and the blade at the blade surface.
  • the blade root at the blade back is 4.4.4; the spindle motor 2.2 drives the knife handle 2.4 and the tool 2.5 to rotate, realizing the high-efficiency processing of the blade root 4.4.
  • the large propeller 4 includes a hub 4.1, a hub cap 4.2, a blade 4.3, and a blade root 4.4.
  • the blade 4.3 includes a blade surface 4.3.1 and a blade back 4.3.2.
  • the large propeller 4 has a three-dimensional structure. The spiral surface and large diameter generate thrust during underwater rotation.
  • the hub 4.1 is used to fix and combine each blade 4.3, and a hub cap 4.2 is usually added to the top of the hub 4.1 to reduce water resistance; the blade root 4.4 is the connecting part of the blade 4.3 and the hub 4.1, which is used to lower the blade.
  • the concentrated stress at root 4.4 must be processed into rounded corners.
  • the vertical inclined column feed bed includes an inclined column 1.1, a base bed 1.2, a linear guide 1.3, a linear motor 1.4, a lead screw 1.5 and a generous slot 1.8.
  • the distance 4.5 between the two blades is greater than the width of the inclined column 1.6, and the inclination angle of the inclined column 1.7 should be adapted to the deflection angle of the blade back 4.6.
  • the workpiece rotary table form A includes a circular base 3.1 and a rotary table 3.2. While the circular base 3.1 plays a supporting role, it must also provide good vibration isolation services for the rotary motion of the large propeller 4. In particular, the diameter of the circular base 3.1.1 is smaller than the diameter of the rotary table 3.2.1, and the large propeller 4 is located When the workpiece rotary table is in form A, the bottom end of the blade 4.8 is higher than the surface 1.2.1 of the base bed, ensuring that the vertical inclined column feed bed is as close to the hub 4.1 as possible, and the effective reduction of the spindle overhang length of 2.6 is realized.
  • the floor type feeding mechanism includes linear motor 5.1, lead screw 5.2, guide rail 5.3, and work table 5.4.
  • the vertical inclined column feed bed is controlled by the linear motor 5.1 and the lead screw 5.2 slides along the guide rail 5.3 on the worktable 5.4; the height of the worktable 5.4.1 should be designed to ensure that the surface 1.2.1 of the base bed is not in contact with the propeller. Ye 4.3 interfered.
  • the center of gravity of the inclined column 1.1 is not on the axis of the column.
  • the vertical oblique column feed bed includes three types of right oblique L-shaped column feed bed, oblique T-shaped column feed bed, and left oblique L-shaped column feed bed.
  • the components are the same, but the difference is that the position of the inclined column 1.1 on the base bed 1.2 is different: when the inclined column 1.1 is on the rightmost side of the base bed 1.2, the right inclined L-shaped column feeds the bed; when the inclined column 1.1 is on the base When the bed 1.2 is on the leftmost side, it is a left inclined L-shaped column feed bed; when the inclined column 1.1 is at any position in the middle of the base bed 1.2, it is an inclined T-shaped column feed bed.
  • the workpiece rotary table 3 is a workpiece rotary table form B
  • the bed feeding mechanism 5 is a gantry type feeding mechanism , specifically:
  • the machine tool spindle 2 includes a swing head motor 2.1, a spindle motor 2.2, a spindle 2.3, a tool holder 2.4, and a tool 2.5.
  • the machine tool spindle 2 is controlled to slide up and down along the linear guide 1.3 through the linear motor 1.4 and the lead screw 1.5.
  • the swing head motor 2.1 is located in the generous slot 1.8 of the inclined column feed bed 1, and controls the spindle 2.3 to swing around the inclined column feed bed 1, ensuring that the tool 2.5 can process the hub 4.1, the blade root 4.4.3 and the blade at the blade surface.
  • the blade root at the blade back is 4.4.4; the spindle motor 2.2 drives the knife handle 2.4 and the tool 2.5 to rotate, realizing the high-efficiency processing of the blade root 4.4.
  • the large propeller 4 includes a hub 4.1, a hub cap 4.2, a blade 4.3, and a blade root 4.4.
  • the blade 4.3 includes a blade surface 4.3.1 and a blade back 4.3.2.
  • the large propeller 4 has a three-dimensional structure. The spiral surface and large diameter generate thrust during underwater rotation.
  • the hub 4.1 is used to fix and combine each blade 4.3, and a hub cap 4.2 is usually added to the top of the hub 4.1 to reduce water resistance; the blade root 4.4 is the connecting part of the blade 4.3 and the hub 4.1, which is used to lower the blade.
  • the concentrated stress at root 4.4 must be processed into rounded corners.
  • the inverted inclined column feed bed includes an inclined column 1.1, a base bed 1.2, a linear guide 1.3, a linear motor 1.4, a lead screw 1.5, and a generous slot 1.8.
  • the distance 4.5 between the two blades should be greater than the width of the inclined column 1.6, and the inclination angle of the inclined column 1.7 should be adapted to the deflection angle of the blade back 4.6; in order to achieve For high-quality processing of large propeller 4, it is necessary to open a large square slot 1.8 on the side of the inclined column 1.1.
  • the height of the inclined column 1.9 cannot be lower than the height of the hub 4.7, otherwise the small stroke length cannot guarantee the tip 4.4.1 and the bottom 4.4 .2 Completeness of processing.
  • the workpiece rotary table form B includes a circular base 3.1 and a rotary table 3.2. While the circular base 3.1 plays a supporting role, it also provides good vibration isolation services for the large propeller 4's rotary motion; especially the diameter of the circular base 3.1.1 is larger than the diameter of the rotary table 3.2.1, and the upper surface of the circular base 3.1 .2 It should be lower than the bottom end of the inclined column 1.1.1 to ensure that the vertical inclined column feed bed is as close as possible to the hub 4.1 to achieve an effective reduction of the main shaft overhang length of 2.6.
  • the gantry-type feeding mechanism includes linear motor 5.1, lead screw 5.2, guide rail 5.3, worktable 5.4, and column 5.5.
  • the inverted inclined column feed bed is controlled by linear motor 5.1 and the lead screw 5.2 slides along the guide rail 5.3 on the worktable 5.4; the column 5.5 supporting the inverted inclined column feed bed is added, and the distance between the columns 5.6 is larger than the large propeller
  • the diameter is 4.9, the height of the column is 5.7 is greater than the total height of the large propeller 4.10, to prevent the inverted inclined column from colliding with the hub cap 4.2 and the blade 4.3 during the sliding process of the inverted inclined column feed bed along the guide rail 5.3.
  • the beneficial effects of the invention are: a large-scale propeller inclined bed feed processing machine tool is established, which effectively reduces the overhang elongation of the main shaft and ensures the machining rigidity, and solves the problem of poor machining quality of the large-scale propeller caused by poor main shaft rigidity ;
  • the innovative design of the inclined column feed bed effectively reduces the area of the machine tool and has a compact structure, which improves the material utilization;
  • the designed inclined bed feed processing machine tool has 4 degrees of freedom, avoiding multi-axis linkage
  • the error coupling caused by the control realizes the high-quality processing of parts and meets the high-quality processing requirements for large propellers.
  • Figure 1 is an example (1) diagram of the inclined column feed bed
  • Figure 2 is an example (two) diagram of the inclined column feed bed
  • Figure 3 is an example (three) diagram of the inclined column feed bed
  • Figure 4 is an example (four) diagram of the inclined column feed bed
  • Figure 5 is a diagram of the machine tool spindle
  • Figure 6 is an example (1) diagram of a workpiece rotary table
  • Figure 7 is an example (two) diagram of a workpiece rotary table
  • Figure 8 is a diagram of a large propeller
  • Figure 9 is an example (1) diagram of the bed feed mechanism
  • Figure 10 is an example (two) diagram of the bed feed mechanism
  • Figure 11 is an example (1) diagram of an inclined bed feed processing machine tool
  • Figure 12 is an example (two) diagram of a slant bed feed processing machine tool
  • Figure 13 is an example (three) diagram of an inclined bed feed processing machine tool
  • Figure 14 is an example (four) diagram of an inclined bed feed processing machine tool
  • different inclined column feed bed 1 choose different types of workpiece rotary table 3 and bed feed mechanism 5, and design a vertical right inclined L-shaped bed feed processing machine, vertical inclined T-shaped bed
  • feed processing machine tools a vertical left-slant L-bed feed processing machine tool and an inverted diagonal-bed feed processing machine tool.
  • the large propeller 4 is usually a four-blade propeller or a five-blade propeller, and the distance between the two blades of the five-blade propeller is smaller than that of the four-blade propeller, it is more difficult to manufacture and process.
  • the large propeller 4 with blade 4.3 is the processing object.
  • the material is selected as bronze, the diameter of the hub 4.1 is 762mm, the height is 930mm, the diameter of the propeller is 4.9 is 3500mm, and the distance between the two blades 4.5 is 700mm.
  • the workpiece rotary table 3 is a workpiece rotary table form A
  • the bed feed mechanism 5 is a floor type feeding mechanism .
  • the right-inclined L-shaped column feed bed is less prone to tipping, and has better stability.
  • the width of the inclined column of the right inclined L-shaped vertical feed bed is 1.6 is 470mm
  • the inclination angle of the inclined column is 1.7 is 55°
  • the height of the inclined column is 1.9 is 1800mm.
  • the workpiece rotary table adopts the workpiece rotary table form A whose circular base diameter 3.1.1 is smaller than the rotary table diameter 3.2.1, the circular base diameter 3.1.1 is 800mm, and the rotary table diameter 3.2.1 is 1200mm; the bed
  • the feed mechanism is a floor type feeding mechanism.
  • the height of the worktable is 250mm for 5.4.1, the width of the worktable is 2000mm for 5.4.2, and the length of the worktable is 5.4.3 for 3000mm, ensuring that the worktable 5.4 can be as close as possible to the hub 4.1 at the same time
  • There is still enough stroke length so that the right inclined L-shaped column feed bed can withdraw from between the blades 4.3, and the bottom end of the blade 4.8 is higher than the base bed surface of the right inclined L-shaped column feed bed 1.2.1 Avoid interference.
  • the workpiece rotary table 3 is the workpiece rotary table form B
  • the bed feed mechanism 5 is a gantry type feed mechanism .
  • the inverted inclined column feed bed is supported by the column 5.5, there will be no tipping accident due to the existence of the inclined column inclination angle of 1.7, but the inverted inclined column feed bed
  • the body requires more materials, and the assembled inclined vertical bed feed processing machine occupies a larger area.
  • the size parameters of the large propeller 4 processed in the implementation case are the same, the size parameters of the inverted inclined column feed bed and the inclined column 1.1 of the vertical inclined column feed bed are the same, the width of 1.6 is 470mm, and the inclination angle of the inclined column is 1.7 55°, the height of the inclined column is 1.9 to 1800mm.
  • the workpiece rotary table adopts the workpiece rotary table form B whose circular base diameter 3.1.1 is larger than the rotary table diameter 3.2.1, the circular base diameter 3.1.1 is 1200mm, and the rotary table diameter 3.2.1 is 800mm; the bed
  • the feeding mechanism is a gantry type feeding mechanism, the distance between the columns is 5.6 is 3900mm, the column height is 5.7 is 2100mm, and the working table length is 5.4.3 is 4000mm, ensuring that the inclined column 1.1 can be as close as possible to the hub 4.1 while still having enough stroke
  • the length enables the inverted oblique column feed bed to withdraw from between the blades 4.3.
  • the purpose of the innovative design of the inclined bed feed processing machine tool for the large propeller 4 is to reduce the overhang elongation of the main shaft by 2.6 to improve the machining rigidity and ensure the high quality and efficient machining of the blade root 4.4 of the large propeller 4.
  • the main parameters of the column feed bed and the inclined column 1.1 of the inverted inclined column feed bed, the spindle overhang elongation 2.6 can be less than 400mm, which can meet the high-quality processing requirements for large propellers.
  • the inclined bed feed processing machine tool for large propellers proposed in the present invention effectively reduces the overhang of the main shaft and ensures the machining rigidity, and solves the problem of poor machining quality of large propellers caused by machine tool vibration; four different structural forms are designed
  • the inclined bed feed processing machine tool can be selected and optimized for different processing objects, especially the right inclined L-shaped vertical bed feed processing machine tool has better stability and compact structure, which effectively reduces the floor space of the plant;
  • the designed processing machine tool has 4 degrees of freedom, avoiding the error coupling caused by multi-axis linkage control, ensuring the processing accuracy of parts, and meeting the high-quality processing requirements for large propellers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Turning (AREA)

Abstract

一种大型螺旋桨斜床身进给加工机床，包括斜立柱进给床身（1）、机床主轴（2）、工件回转工作台（3）、大型螺旋桨（4）和床身进给机构（5）。通过协调机床与大型螺旋桨之间的几何关系，保证斜立柱进给床身运动至两桨叶之间，减少主轴的悬伸长度；根据不同的斜立柱进给床身选择不同形式的工件回转工作台和床身进给机构，共设计出四种类型的斜立柱进给床身，可以面向不同加工对象进行选择优化应用。这种结构提高了主轴加工刚性并解决了因机床振动引起大型螺旋桨加工质量差的问题，其中的立式右斜L型床身进给加工机床稳定性更好，结构紧凑，减小了机床的占地面积，满足面向大型螺旋桨高质量加工需求。

Description

一种大型螺旋桨斜床身进给加工机床 技术领域
本发明属于数控机床技术领域，涉及一种大型螺旋桨斜床身进给加工机床。
 背景技术
大型螺旋桨是船舶动力***的核心部件之一，其制造质量直接决定了舰船的推进效率、操纵性能以及振动特性和安全性等。然而，桨叶形状为三维螺旋曲面，致使螺旋桨在加工过程中工艺复杂，制造难度大。传统的半机械化加工方法效率低，准确性差和劳动强度大，严重制约着大型螺旋桨的加工精度。特别是桨毂和叶根部位，由于桨叶直径大，即使是数控加工方法也只能通过加长主轴的悬伸长度才能保证其加工完整性。
然而，工艺***刚度与主轴悬伸长度密切相关。主轴悬伸长度的增加显著降低其刚度，尤其是大进给量铣削或磨削加工过程中，低的***刚度极易引起主轴发生变形，在大切削力作用下无法保证大型螺旋桨的加工质量。因此，为了使加工车床的主轴部件具有高刚度、小振动、小变形、低噪声以及良好的抵抗受迫振动和自激振动能力的动态性能，通过装置创新设计，协调机床与大型螺旋桨之间的几何关系，保证斜立柱进给床身运动至两桨叶之间，从而减少主轴的悬伸长度并提高***刚度，实现面向大型螺旋桨的高质量加工。
2010年赵虎等在发明专利CN200910038368.6中公开了六轴五联动螺旋桨加工中心，该装置由前底座，后底座，X向滑板，立柱，Y向滑板等组成，实现大型螺旋桨稳定性加工，然而，该装置运动机构繁多复杂，难以保证其加工精度及质量，而且加工过程中需要将螺旋桨轴线平行于地面，操作困难；2014年，周军伟等在发明专利CN201410231006.X中公开了一种导管螺旋桨加工方法，该方法采用多抓卡盘夹持坯料外圆柱面，夹板夹持叶冠固定，使桨叶处于多点固定状态进而提高其刚性，通过设计螺旋桨的专用夹具保证其加工刚性。
然而，上述方法均未提及一种大型螺旋桨斜床身进给加工机床。
 技术问题
本发明主要解决的技术难题是克服现有方法的不足，面向大型螺旋桨高质量加工需求，发明了一种大型螺旋桨斜床身进给加工机床。该机床中，创新设计了斜立柱进给床身，有效减少了主轴的悬伸长度并保证了加工刚性，解决了机床振动引起大型螺旋桨加工质量差的问题；设计的进给加工机床具有优良的稳定性并且结构紧凑，有效减小了占地面积；进给加工机床具有4个方向自由度，避免了多轴联动控制带来的误差耦合，保证了零件的加工精度。
 技术解决方案
为了达到上述目的，本发明采用的技术方案是：
一种大型螺旋桨斜床身进给加工机床，加工机床包括斜立柱进给床身1，机床主轴2，工件回转工作台3，大型螺旋桨4和床身进给机构5；其中，斜立柱进给床身1包括立式斜立柱进给床身和倒立式斜立柱进给床身两大类型，工件回转工作台3包括工件回转工作台形式A和工件回转工作台形式B两种类型，床身进给机构5包括落地式进给机构和龙门式进给机构两种类型。根据不同类型的斜立柱进给床身1选择不同形式的工件回转工作台3和床身进给机构5。
当所述的斜立柱进给床身1为立式斜立柱进给床身时，所述的工件回转工作台3为工件回转工作台形式A，床身进给机构5为落地式进给机构，具体为：
所述的机床主轴2包括摆头电机2.1、主轴电机2.2、主轴2.3、刀柄2.4、刀具2.5。通过直线电机1.4和丝杠1.5控制机床主轴2沿直线导轨1.3上下滑动。摆头电机2.1位于斜立柱进给床身1的大方槽1.8中，控制主轴2.3绕斜立柱进给床身1摆动，保证刀具2.5可以加工桨毂4.1、叶面处的叶根4.4.3和叶背处的叶根4.4.4；主轴电机2.2带动刀柄2.4和刀具2.5旋转，实现叶根4.4的高效率加工。
所述的大型螺旋桨4包括桨毂4.1、毂帽4.2、桨叶4.3、叶根4.4，其中，所述桨叶4.3又包括叶面4.3.1和叶背4.3.2，大型螺旋桨4结构为三维螺旋曲面且直径大，在水下旋转过程中产生推力。所述桨毂4.1用来固定与结合各个桨叶4.3，通常于桨毂4.1顶端加装毂帽4.2以减小水的阻力；叶根4.4为桨叶4.3与桨毂4.1相连部位，为降低叶根4.4处的集中应力须加工为圆角。
所述的立式斜立柱进给床身包括斜立柱1.1、底座床身1.2、直线导轨1.3、直线电机1.4、丝杠1.5和大方槽1.8。为了保证斜立柱1.1进给过程中不与桨叶4.3干涉，两桨叶之间的距离4.5大于斜立柱宽度1.6，以及斜立柱倾斜角度1.7要与叶背的偏转角度4.6相适应。为了实现大型螺旋桨4的高质量加工，还需在斜立柱1.1一侧开设大方槽1.8；斜立柱高度1.9不能低于桨毂高度4.7，否则小的行程长度无法保证叶根顶端4.4.1和底端4.4.2加工的完整性。所述的斜立柱1.1与底座床身1.2之间存在倾斜角度1.7。
所述的工件回转工作台形式A包括圆形底座3.1和旋转工作台3.2。所述圆形底座3.1起到支撑作用的同时还要为大型螺旋桨4回转运动提供良好的隔振服务；特别是圆形底座直径3.1.1小于回转工作台直径3.2.1，而且大型螺旋桨4位于工件回转工作台形式A时桨叶底端4.8高于底座床身上表面1.2.1，保证立式斜立柱进给床身尽可能靠近桨毂4.1，实现主轴悬伸长度2.6的有效缩减。
所述的落地式进给机构包括直线电机5.1、丝杠5.2、导轨5.3、工作台5.4。所述立式斜立柱进给床身通过直线电机5.1控制和丝杠5.2在工作台5.4上沿着导轨5.3滑动；工作台高度5.4.1设计时要保证底座床身上表面1.2.1不与桨叶4.3发生干涉。
进一步，考虑到斜立柱1.1重量较大，而且由于倾斜角度1.7的存在，斜立柱1.1重心不在立柱轴线上，为了防止立式斜立柱进给床身倾倒，增加底座床身1.2质量的同时，还需要在斜立柱1.1另一侧开设凹槽，减轻斜立柱1.1质量并节省材料。
进一步，所述的立式斜立柱进给床身包括右斜L型立柱进给床身、斜T型立柱进给床身、左斜L型立柱进给床身三种形式，三种形式结构组成部分相同，不同之处为斜立柱1.1在底座床身1.2的位置不同：当斜立柱1.1在底座床身1.2最右侧时为右斜L型立柱进给床身；当斜立柱1.1在底座床身1.2最左侧时为左斜L型立柱进给床身；当斜立柱1.1在底座床身1.2中间任意位置时为斜T型立柱进给床身。
当所述的斜立柱进给床身1为倒立式斜立柱进给床身时，所述的工件回转工作台3为工件回转工作台形式B，床身进给机构5为龙门式进给机构，具体为：
所述的机床主轴2包括摆头电机2.1、主轴电机2.2、主轴2.3、刀柄2.4、刀具2.5。通过直线电机1.4和丝杠1.5控制机床主轴2沿直线导轨1.3上下滑动。摆头电机2.1位于斜立柱进给床身1的大方槽1.8中，控制主轴2.3绕斜立柱进给床身1摆动，保证刀具2.5可以加工桨毂4.1、叶面处的叶根4.4.3和叶背处的叶根4.4.4；主轴电机2.2带动刀柄2.4和刀具2.5旋转，实现叶根4.4的高效率加工。
所述的大型螺旋桨4包括桨毂4.1、毂帽4.2、桨叶4.3、叶根4.4，其中，所述桨叶4.3又包括叶面4.3.1和叶背4.3.2，大型螺旋桨4结构为三维螺旋曲面且直径大，在水下旋转过程中产生推力。所述桨毂4.1用来固定与结合各个桨叶4.3，通常于桨毂4.1顶端加装毂帽4.2以减小水的阻力；叶根4.4为桨叶4.3与桨毂4.1相连部位，为降低叶根4.4处的集中应力须加工为圆角。
所述的倒立式斜立柱进给床身包括斜立柱1.1、底座床身1.2、直线导轨1.3、直线电机1.4、丝杠1.5、大方槽1.8。为了保证斜立柱1.1进给过程中不与桨叶4.3干涉，两桨叶之间的距离4.5要大于斜立柱宽度1.6，以及斜立柱倾斜角度1.7要与叶背的偏转角度4.6相适应；为了实现大型螺旋桨4的高质量加工，还需在斜立柱1.1一侧开大方槽1.8，斜立柱高度1.9不能低于桨毂高度4.7，否则小的行程长度无法保证叶根顶端4.4.1和底端4.4.2加工的完整性。
所述的工件回转工作台形式B包括圆形底座3.1和旋转工作台3.2。圆形底座3.1起到支撑作用的同时还要为大型螺旋桨4回转运动提供良好的隔振服务；特别是圆形底座直径3.1.1大于回转工作台直径3.2.1，而且圆形底座上表面3.1.2要低于斜立柱底端1.1.1，保证立式斜立柱进给床身尽可能靠近桨毂4.1，实现主轴悬伸长度2.6的有效缩减。
所述的龙门式进给机构包括直线电机5.1、丝杠5.2、导轨5.3、工作台5.4、立柱5.5。倒立式斜立柱进给床身通过直线电机5.1控制和丝杠5.2在工作台5.4上沿着导轨5.3滑动；增加支撑倒立式斜立柱进给床身的立柱5.5，且立柱间距离5.6大于大型螺旋桨直径4.9，立柱高度5.7大于大型螺旋桨总高度4.10，防止倒立式斜立柱进给床身沿导轨5.3滑动过程中与毂帽4.2和桨叶4.3发生碰撞。
进一步，考虑到斜立柱1.1重量较大，为了增加倒立式斜立柱进给床身的稳定性，增加底座床身质量1.2的同时，还需要在斜立柱1.1另一侧开设凹槽，以减轻斜立柱1.1质量并节省材料。
 有益效果
本发明的有益效果是：建立了一种大型螺旋桨斜床身进给加工机床，有效减小了主轴悬伸长度并保证了加工刚性，解决了因主轴刚度差引起的大型螺旋桨加工质量差的问题；斜立柱进给床身的创新设计有效减小了机床的占地面积并且结构紧凑，提高了材料利用率；设计的斜床身进给加工机床具有4个方向自由度，避免了多轴联动控制带来的误差耦合，实现了零件的高质量加工，满足面向大型螺旋桨高质量加工需求。
 附图说明
图1为斜立柱进给床身示例（一）图；
图2为斜立柱进给床身示例（二）图；
图3为斜立柱进给床身示例（三）图；
图4为斜立柱进给床身示例（四）图；
图5为机床主轴图；
图6为工件回转工作台示例（一）图；
图7为工件回转工作台示例（二）图；
图8为大型螺旋桨图；
图9为床身进给机构示例（一）图；
图10为床身进给机构示例（二）图；
图11为斜床身进给加工机床示例（一）图；
图12为斜床身进给加工机床示例（二）图；
图13为斜床身进给加工机床示例（三）图；
图14为斜床身进给加工机床示例（四）图；
图中：1斜立柱进给床身（四种）；2机床主轴；3工件回转工作台（两种）；4大型螺旋桨；5床身进给机构（两种）。
1.1斜立柱，1.2底座床身，1.3直线导轨，1.4直线电机，1.5丝杠，1.6斜立柱宽度，1.7斜立柱倾斜角度，1.8大方槽，1.9斜立柱高度；1.1.1斜立柱底端；1.2.1底座床身上表面。
2.1摆头电机，2.2主轴电机，2.3主轴，2.4刀柄，2.5刀具，2.6主轴悬伸长度。
3.1圆形底座，3.2-旋转工作台；3.1.1圆形底座直径，3.1.2-圆形底座上表面，3.2.1-回转工作台直径。
4.1桨毂，4.2毂帽，4.3桨叶，4.4叶根，4.5两桨叶之间的距离，4.6叶背的偏转角度，4.7桨毂高度，4.8桨叶底端，4.9螺旋桨直径；4.3.1叶面，4.3.2叶背，4.4.1叶根顶端，4.4.2叶根底端。
5.1直线电机，5.2丝杠，5.3导轨，5.4工作台，5.5立柱，5.6立柱间距离，5.7立柱高度；5.4.1工作台高度，5.4.2工作台宽度，5.4.3工作台长度。
 本发明的实施方式
结合附图详细说明本发明的具体实施方案。
根据不同的斜立柱进给床身1选择不同类型的工件回转工作台3和床身进给机构5，共设计出立式右斜L型床身进给加工机床，立式斜T型床身进给加工机床，立式左斜L型床身进给加工机床和倒立式斜床身进给加工机床四种类型。
实施例中，由于大型螺旋桨4通常为四叶桨或五叶桨，而且五叶桨相对于四叶桨两桨叶之间的距离4.5更小，制造加工难度更大，因此以具有五个桨叶4.3的大型螺旋桨4为加工对象，为了增强大型螺旋桨4的刚性和抗腐蚀能力，材料选用为青铜，转毂4.1直径为762mm，高为930mm，螺旋桨直径4.9为3500mm，两桨叶之间距离4.5为700mm。
实施例1
当所选的斜立柱进给床身1为立式斜立柱进给床身时，所述的工件回转工作台3为工件回转工作台形式A，床身进给机构5为落地式进给机构。基于力矩平衡原理，相比于斜T型立柱进给床身和左斜L型立柱进给床身，右斜L型立柱进给床身更不容易发生倾倒，具有更好的稳定性，可以保证大型螺旋桨4的加工质量。因此对于立式斜立柱进给床身，选取右斜L型立式进给床身最佳，具有占地面积小以及材料利用率大，可以满足面向大型螺旋桨4叶根的高质量加工。右斜L型立式进给床身的斜立柱宽度1.6为470mm，斜立柱倾斜角1.7为55°，斜立柱高度1.9为1800mm。
工件回转工作台采用圆形底座直径3.1.1小于回转工作台直径3.2.1的工件回转工作台形式A，圆形底座直径3.1.1为800mm，回转工作台直径3.2.1为1200mm；床身进给机构为落地式进给机构，工作台高度5.4.1为250mm，工作台宽度5.4.2为2000mm，工作台长度5.4.3为3000mm，保证工作台5.4能够尽可能靠近桨毂4.1的同时仍有足够的行程长度使右斜L型立柱进给床身能够从桨叶4.3之间退出，以及桨叶底端4.8高于右斜L型立柱进给床身的底座床身上表面1.2.1避免发生干涉。
实施例2
当所选的斜立柱进给床身1为倒立式斜立柱进给床身时，所述的工件回转工作台3为工件回转工作台形式B，床身进给机构5为龙门式进给机构。相比于立式斜立柱进给床身，由于倒立式斜立柱进给床身通过立柱5.5支撑，并不会因为斜立柱倾斜角1.7的存在而发生倾倒事故，但是倒立式斜立柱进给床身所需材料更多，装配成的斜倒立式床身进给加工机床占地面积更大。由于实施案例中加工的大型螺旋桨4尺寸参数相同，因此倒立式斜立柱进给床身和立式斜立柱进给床身的斜立柱1.1尺寸参数相同，宽度1.6为470mm，斜立柱倾斜角1.7为55°，斜立柱高度1.9为1800mm。
工件回转工作台采用圆形底座直径3.1.1大于回转工作台直径3.2.1的工件回转工作台形式B，圆形底座直径3.1.1为1200mm，回转工作台直径3.2.1为800mm；床身进给机构为龙门式进给机构，立柱间距离5.6为3900mm，立柱高度5.7为2100mm，工作台长度5.4.3为4000mm，保证斜立柱1.1能够尽可能靠近桨毂4.1的同时仍有足够的行程长度使倒立式斜立柱进给床身能够从桨叶4.3之间退出。
大型螺旋桨4的斜床身进给加工机床创新设计的目的是减小主轴悬伸长度2.6以提高加工刚性，保证大型螺旋桨4的叶根4.4高质高效加工，基于大型螺旋桨4，右斜L型立柱进给床身和倒立式斜立柱进给床身的斜立柱1.1的主要参数，主轴悬伸长度2.6可以小于400mm，满足面向大型螺旋桨高质量加工需求。
本发明提出的面向大型螺旋桨的斜床身进给加工机床有效减少了主轴的悬伸长度并保证了加工刚性，解决了因机床振动引起大型螺旋桨加工质量差的问题；设计了四种不同结构形式斜床身进给加工机床，可以面向不同加工对象进行选择优化应用，尤其是右斜L型立式床身进给加工机床稳定性更好，结构紧凑，有效减小了厂房的占地面积；设计的加工机床具有4个方向自由度，避免了多轴联动控制带来的误差耦合，保证了零件的加工精度，满足面向大型螺旋桨高质量加工需求。
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 (7)

  1. 一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的大型螺旋桨斜床身进给加工机床包括斜立柱进给床身(1)，机床主轴(2)，工件回转工作台(3)，大型螺旋桨(4)和床身进给机构(5)；根据不同类型的斜立柱进给床身(1)选择不同形式的工件回转工作台(3)和床身进给机构(5)；
    当所述的斜立柱进给床身(1)为立式斜立柱进给床身时，所述的工件回转工作台(3)为工件回转工作台形式A，床身进给机构(5)为落地式进给机构，具体结构为：
    所述的机床主轴(2)包括摆头电机(2.1)、主轴电机(2.2)、主轴(2.3)、刀柄(2.4)、刀具(2.5)；通过直线电机(1.4)和丝杠(1.5)控制机床主轴(2)沿直线导轨(1.3)上下滑动；摆头电机(2.1)位于斜立柱进给床身(1)的大方槽(1.8)中，控制主轴(2.3)绕斜立柱进给床身(1)摆动，保证刀具(2.5)能够加工桨毂(4.1)、叶面处的叶根(4.4.3)和叶背处的叶根(4.4.4)；主轴电机(2.2)带动刀柄(2.4)和刀具(2.5)旋转，用于加工叶根(4.4)；
    所述的大型螺旋桨(4)包括桨毂(4.1)、桨叶(4.3)、叶根(4.4)；所述桨毂(4.1)用来固定与结合各个桨叶(4.3)，叶根(4.4)为桨叶(4.3)与桨毂(4.1)相连部位；
    所述的立式斜立柱进给床身包括斜立柱(1.1)、底座床身(1.2)、直线导轨(1.3)、直线电机(1.4)、丝杠(1.5)和大方槽(1.8)；两桨叶之间的距离(4.5)大于斜立柱宽度(1.6)，保证斜立柱(1.1)进给过程中不与桨叶(4.3)干涉；在斜立柱(1.1)一侧开设大方槽(1.8)，实现大型螺旋桨(4)的高质量加工；斜立柱(1.1)与底座床身(1.2)之间存在倾斜角度(1.7)，且斜立柱倾斜角度(1.7)与叶背的偏转角度(4.6)相适应；斜立柱(1.1)的高度不能低于桨毂(4.1)的高度，保证叶根顶端和底端加工的完整性；
    所述的工件回转工作台形式A包括圆形底座(3.1)和旋转工作台(3.2)；所述圆形底座(3.1)起到支撑作用的同时还为大型螺旋桨(4)回转运动提供隔振服务；圆形底座直径(3.1.1)小于回转工作台直径(3.2.1)，且大型螺旋桨(4)位于工件回转工作台形式A时，桨叶底端(4.8)高于底座床身上表面(1.2.1)，保证立式斜立柱进给床身靠近桨毂(4.1)，实现主轴悬伸长度(2.6)的有效缩减；
    所述的落地式进给机构包括直线电机(5.1)、丝杠(5.2)、导轨(5.3)、工作台(5.4)；所述立式斜立柱进给床身通过直线电机(5.1)和丝杠(5.2)在工作台(5.4)上沿着导轨(5.3)滑动；工作台高度(5.4.1)需要保证底座床身上表面(1.2.1)不与桨叶(4.3)发生干涉。
  2. 根据权利要求1所述的一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的立式斜立柱进给床身包括右斜L型立柱进给床身、斜T型立柱进给床身、左斜L型立柱进给床身三种形式，三种形式结构组成部分相同，不同之处为斜立柱(1.1)在底座床身(1.2)的位置不同：当斜立柱(1.1)在底座床身(1.2)最右侧时为右斜L型立柱进给床身；当斜立柱(1.1)在底座床身(1.2)最左侧时为左斜L型立柱进给床身；当斜立柱(1.1)在底座床身(1.2)中间任意位置时为斜T型立柱进给床身。
  3. 根据权利要求1所述的一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的斜立柱1.1另一侧开设凹槽。
  4. 根据权利要求1所述的一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的大型螺旋桨(4)在桨毂(4.1)顶端加装毂帽(4.2)，用于减小水的阻力。
  5. 一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的大型螺旋桨斜床身进给加工机床包括斜立柱进给床身(1)，机床主轴(2)，工件回转工作台(3)，大型螺旋桨(4)和床身进给机构(5)；根据不同类型的斜立柱进给床身(1)选择不同形式的工件回转工作台(3)和床身进给机构(5)；
    当所述的斜立柱进给床身(1)为倒立式斜立柱进给床身时，所述的工件回转工作台(3)为工件回转工作台形式B，床身进给机构(5)为龙门式进给机构，具体结构为：
    所述的机床主轴(2)包括摆头电机(2.1)、主轴电机(2.2)、主轴(2.3)、刀柄(2.4)、刀具(2.5)；通过直线电机(1.4)和丝杠(1.5)控制机床主轴(2)沿直线导轨(1.3)上下滑动；摆头电机(2.1)位于斜立柱进给床身(1)的大方槽(1.8)中，控制主轴(2.3)绕斜立柱进给床身(1)摆动，保证刀具(2.5)能够加工桨毂(4.1)、叶面处的叶根(4.4.3)和叶背处的叶根(4.4.4)；主轴电机(2.2)带动刀柄(2.4)和刀具(2.5)旋转，用于加工叶根(4.4)；
    所述的大型螺旋桨(4)包括桨毂(4.1)、桨叶(4.3)、叶根(4.4)；所述桨毂(4.1)用来固定与结合各个桨叶(4.3)，叶根(4.4)为桨叶(4.3)与桨毂(4.1)相连部位；
    所述的立式斜立柱进给床身包括斜立柱(1.1)、底座床身(1.2)、直线导轨(1.3)、直线电机(1.4)、丝杠(1.5)和大方槽(1.8)；两桨叶之间的距离(4.5)大于斜立柱宽度(1.6)，保证斜立柱(1.1)进给过程中不与桨叶(4.3)干涉；在斜立柱(1.1)一侧开设大方槽(1.8)，实现大型螺旋桨(4)的高质量加工；斜立柱(1.1)与底座床身(1.2)之间存在倾斜角度(1.7)，且斜立柱倾斜角度(1.7)与叶背的偏转角度(4.6)相适应；斜立柱(1.1)的高度不能低于桨毂(4.1)的高度，保证叶根顶端和底端加工的完整性；
    所述的工件回转工作台形式B包括圆形底座(3.1)和旋转工作台(3.2)；圆形底座(3.1)起到支撑作用的同时还为大型螺旋桨(4)回转运动提供隔振服务；圆形底座直径(3.1.1)大于回转工作台直径(3.2.1)，且圆形底座上表面(3.1.2)低于斜立柱底端(1.1.1)，保证立式斜立柱进给床身靠近桨毂(4.1)，实现主轴悬伸长度(2.6)的有效缩减；
    所述的龙门式进给机构包括直线电机(5.1)、丝杠(5.2)、导轨(5.3)、工作台(5.4)、立柱(5.5)；倒立式斜立柱进给床身通过直线电机(5.1)控制和丝杠(5.2)在工作台(5.4)上沿导轨(5.3)滑动；增加支撑倒立式斜立柱进给床身的立柱(5.5)，且立柱间距离(5.6)大于大型螺旋桨直径(4.9)，立柱高度(5.7)大于大型螺旋桨总高度(4.10)，防止倒立式斜立柱进给床身沿导轨(5.3)滑动过程中与毂帽(4.2)和桨叶(4.3)发生碰撞。
  6. 根据权利要求5所述的一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的斜立柱(1.1)另一侧开设凹槽。
  7. 根据权利要求5所述的一种大型螺旋桨斜床身进给加工机床，其特征在于，所述的大型螺旋桨(4)在桨毂(4.1)顶端加装毂帽(4.2)，用于减小水的阻力。
PCT/CN2020/077100 2019-11-29 2020-02-28 一种大型螺旋桨斜床身进给加工机床 WO2021103334A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/052,668 US11370041B2 (en) 2019-11-29 2020-02-28 Slanting-bed feed processing machine tool of large propeller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911196016.3A CN110883562B (zh) 2019-11-29 2019-11-29 一种大型螺旋桨斜床身进给加工机床
CN201911196016.3 2019-11-29

Publications (1)

Publication Number Publication Date
WO2021103334A1 true WO2021103334A1 (zh) 2021-06-03

Family

ID=69749340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/077100 WO2021103334A1 (zh) 2019-11-29 2020-02-28 一种大型螺旋桨斜床身进给加工机床

Country Status (3)

Country Link
US (1) US11370041B2 (zh)
CN (1) CN110883562B (zh)
WO (1) WO2021103334A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114160831A (zh) * 2021-10-18 2022-03-11 宝鼎重工有限公司 一种cpp变距桨毂本体加工工装及使用方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424815A1 (en) * 1989-10-23 1991-05-02 Z. BAVELLONI S.p.A. Automatic engraving machine, particularly for engraving the faces of plate-like elements in general and of glass plates in particular
GB2269768A (en) * 1989-09-11 1994-02-23 Jobs Spa Machine tool with end effector
CN101357437A (zh) * 2008-09-04 2009-02-04 江苏新瑞机械有限公司 五轴联动叶片加工中心
CN101618511A (zh) * 2008-08-28 2010-01-06 周刚 用于机床、机器人与机械测量机的圆弧或圆形龙门结构
CN102744448A (zh) * 2012-07-06 2012-10-24 江苏科技大学 双动力头螺旋桨专用数控加工机床及加工方法
CN107520630A (zh) * 2017-08-31 2017-12-29 江苏科技大学 卧式螺旋桨五轴联动数控加工机床及加工方法
CN108453518A (zh) * 2018-05-15 2018-08-28 浙江辛子精工机械股份有限公司 一种数控龙门结构机床
CN110315427A (zh) * 2018-03-28 2019-10-11 沃尔夫服务和设计有限责任公司 用于加工工件的工具机

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU421437A1 (ru) * 1972-04-13 1974-03-30 Ленинградское специальное конструкторское бюро желых , уникальных станков Фрезерный станок для обработки гребных винтов
SU610618A1 (ru) * 1975-02-14 1978-06-15 Ленинградское Специальное Конструкторское Бюро Тяжелых И Уникальных Станков Станок дл обработки гребных винтов
US4436460A (en) * 1981-06-11 1984-03-13 Ex-Cell-O Corporation Automatic depth compensating system
DE3143846C2 (de) * 1981-11-05 1983-11-03 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verwundenes Profil-Bauteil und Vorrichtung zur Bearbeitung von Polygonzug-Flächen
US4686020A (en) * 1985-11-27 1987-08-11 Ex-Cell-O Corporation Method of electrochemical machining bladed rotors
DE3716933C2 (de) * 1987-05-20 1994-08-11 Festo Kg Werkstück-Zuführeinrichtung an einer Werkzeugmaschine, insbesondere Drehmaschine
DE69916862T2 (de) * 1999-02-26 2005-04-21 Mori Seiki Seisakusho Kk Werkzeugmaschine
US6453211B1 (en) * 2000-03-02 2002-09-17 General Electric Company Nominal shift machining
CH695442A5 (de) * 2002-01-31 2006-05-31 Alstom Technology Ltd Verfahren und Vorrichtung zur Rundum-Bearbeitung eines Rohlings in einer Fräsmaschine.
ITBO20050021A1 (it) * 2005-01-17 2006-07-18 Jobs Spa Macchina utensile pluriasse
EP2030721B1 (en) * 2006-06-19 2011-08-17 JTEKT Corporation Machine tool with turnable movable section
DE102006059227A1 (de) * 2006-12-13 2008-06-19 Hamuel Maschinenbau Gmbh & Co. Kg Verfahren zur Bearbeitung von Rohlingen und Bearbeitungsmaschine zur Durchführung des Verfahrens
CN101380716A (zh) * 2008-10-07 2009-03-11 济南二机床集团有限公司 十轴五联动双龙门移动镗铣床
CN101623821B (zh) * 2009-03-28 2011-05-25 广州市敏嘉制造技术有限公司 六轴五联动螺旋桨加工中心
JP4787347B2 (ja) * 2009-05-22 2011-10-05 ファナック株式会社 インペラ加工機
CN104014983B (zh) 2014-05-29 2016-08-31 哈尔滨工业大学（威海） 一种导管螺旋桨加工方法
CN109940415B (zh) * 2019-03-27 2020-02-18 大连理工大学 一种面向叶盘加工的磁流变支撑方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269768A (en) * 1989-09-11 1994-02-23 Jobs Spa Machine tool with end effector
EP0424815A1 (en) * 1989-10-23 1991-05-02 Z. BAVELLONI S.p.A. Automatic engraving machine, particularly for engraving the faces of plate-like elements in general and of glass plates in particular
CN101618511A (zh) * 2008-08-28 2010-01-06 周刚 用于机床、机器人与机械测量机的圆弧或圆形龙门结构
CN101357437A (zh) * 2008-09-04 2009-02-04 江苏新瑞机械有限公司 五轴联动叶片加工中心
CN102744448A (zh) * 2012-07-06 2012-10-24 江苏科技大学 双动力头螺旋桨专用数控加工机床及加工方法
CN107520630A (zh) * 2017-08-31 2017-12-29 江苏科技大学 卧式螺旋桨五轴联动数控加工机床及加工方法
CN110315427A (zh) * 2018-03-28 2019-10-11 沃尔夫服务和设计有限责任公司 用于加工工件的工具机
CN108453518A (zh) * 2018-05-15 2018-08-28 浙江辛子精工机械股份有限公司 一种数控龙门结构机床

Also Published As

Publication number Publication date
US11370041B2 (en) 2022-06-28
CN110883562A (zh) 2020-03-17
US20210178535A1 (en) 2021-06-17
CN110883562B (zh) 2021-04-20

Similar Documents

Publication Publication Date Title
CN201856088U (zh) 动梁式数控龙门复合机床
CN206825066U (zh) 一种新型卧式主轴的五轴加工中心
CN108237440B (zh) 一种卧式五轴铣车复合加工中心
CN101961836B (zh) 数控龙门立卧复合机床
CN102069222A (zh) 一种双刀加工叶片的卧式机床结构
CN102000981A (zh) 车镗复合加工中心机
CN208231430U (zh) 一种卧式五轴铣车复合加工中心
CN209664802U (zh) 一种六自由度机器人型曲面加工机床结构
TWM399771U (en) Y-axis aligned twin spindle C-model vertical machining center with dual Z-axis function
CN109664112B (zh) 一种双工位曲面加工机床结构
CN102069223A (zh) 一种双刀加工叶片的立式机床结构
CN110814754A (zh) 一种可实现非回转曲面车铣复合加工的数控机床
CN113560644A (zh) 一种高速精密卧式五轴联动航空发动机叶片数控铣削中心
CN209954213U (zh) 一种复合立柱的多面加工中心
CN207402919U (zh) 七轴五联动木榫数控加工中心
CN111496530B (zh) 双工位镜架数控机床
CN201856091U (zh) 车镗复合加工中心机
WO2021103334A1 (zh) 一种大型螺旋桨斜床身进给加工机床
CN210208675U (zh) 对立双主轴双刀塔组合机床
CN209503529U (zh) 一种具有立卧复合双主轴的十字滑台数控机床
CN206677199U (zh) 一种新型立卧复合型五轴加工中心
CN201856090U (zh) 卧式镗车复合加工中心机
CN208231276U (zh) 一种卧式翻板结构五轴复合加工中心
TWM344213U (en) Turning and milling compounding machine
CN201287258Y (zh) 微型车铣复合机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20893761

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20893761

Country of ref document: EP

Kind code of ref document: A1