CN109746300A - It is a kind of based on spherical surface spinning roller frustum cylinder combination shape thin-wall part without mould spin-on process - Google Patents
It is a kind of based on spherical surface spinning roller frustum cylinder combination shape thin-wall part without mould spin-on process Download PDFInfo
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- CN109746300A CN109746300A CN201910116672.1A CN201910116672A CN109746300A CN 109746300 A CN109746300 A CN 109746300A CN 201910116672 A CN201910116672 A CN 201910116672A CN 109746300 A CN109746300 A CN 109746300A
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- spherical surface
- spinning roller
- surface spinning
- drip molding
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Abstract
It is a kind of based on spherical surface spinning roller frustum cylinder combination shape thin-wall part without mould spin-on process, step are as follows: by round slab clamping between cnc spinning machine main shaft and tail top, round slab, main shaft and the tail apical axis heart are overlapped, spherical surface spinning roller, round slab, main shaft and the tail apical axis heart are in same level, and spherical surface spinning roller axle center is parallel with main shaft；Control spherical surface spinning roller is moved along Z axis, contacts spherical arc top with round slab spinning surface, completes the starting positioning of spherical surface spinning roller Z-direction；Control spherical surface spinning roller moves along the x-axis, and completes spherical surface spinning roller X and positions to starting；Determine that final contact point is in the coordinate of mould pressing initial stage on spherical surface spinning roller；Determine the X of drip molding frustum section final contact point on spherical surface spinning roller when completing all deformed to and Z-direction displacement；Drip molding cylindrical section machined parameters are set, whole parameters are inputted in cnc spinning machine system；Start cnc spinning machine, the processing program generated with system is executed without mould spin-forming procedure, is shaped until by round slab.
Description
Technical field
The invention belongs to sheet metal spin forming technique fields, more particularly to a kind of frustum circle based on spherical surface spinning roller
Column combination shape thin-wall part is without mould spin-on process.
Background technique
Mould pressing because its have the characteristics that efficiently, low cost, high stock utilization, be widely used in Aeronautics and Astronautics,
The industrial circles such as automobile.Since modern age rotary pressure technology comes out, mould pressing of the domestic and foreign scholars to conventional revolving parts
Many research work are carried out, by constantly improve, spinning process precise and stable Forming Theory in circular section has had very big hair
Exhibition.With the development of science and technology, about spin forming technique and theoretical research, it is deep into no core model mould pressing, and nothing
When core model spinning, workpiece is hanging and has larger freedom degree, and deformation condition is relative complex, and shapes more difficult to control.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of frustum cylinder combination shape thin-walled based on spherical surface spinning roller
Part is firstly introduced spherical surface spinning roller without mould spin-on process, while carrying out mould pressing with specific spinning roller path locus, can be effective
The processing efficiency for improving the frustum cylinder combination shape thin-wall part of product design and predevelopment phase, can further play no mould spinning
Technology is flexible in product beforehand research and the manufacture of pilot stage.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of frustum cylinder group based on spherical surface spinning roller
Shape thin-wall part is closed without mould spin-on process, is included the following steps:
Step 1: selecting a cnc spinning machine, by between the main shaft and tail top of round slab clamping to cnc spinning machine,
Guarantee that round slab, main shaft and the longitudinal center line of tail top three coincide；
Step 2: homemade spherical surface spinning roller is installed on cnc spinning machine, and the longitudinal edge edge of spherical surface spinning roller is machined with
It is smooth tangent transition between the main body spherical surface of rounded corner, rounded corner and spherical surface spinning roller；The height for adjusting spherical surface spinning roller, makes spherical surface
Spinning roller, round slab, main shaft and the longitudinal center line on tail top are in same level, and the axial centre of spherical surface spinning roller
Line is parallel with the longitudinal center line of main shaft；
Step 3: control spherical surface spinning roller is moved along Z axis, until the spherical arc top of spherical surface spinning roller and the spinning table of round slab
Face is in contact, and the contact point is denoted as to the Z-direction Initial fix of spherical surface spinning roller, and the Z-direction Initial fix of spherical surface spinning roller
Coordinate calculation formula is ZBCSR=-t0, in formula, ZBCSRFor the Z-direction starting point anchor point coordinate of spherical surface spinning roller, t0For round slab
Thickness；
Step 4: control spherical surface spinning roller moves along the x-axis, and the radial dimension maximum point of spherical surface spinning roller is denoted as X to starting
Anchor point, and the X of spherical surface spinning roller to the coordinate calculation formula of Initial fix be XBCSR=rS, wherein rS=(RS+δ)-(LB-
rB) tan β, in formula, XBCSRFor spherical surface spinning roller X to Initial fix coordinate, rSFor spherical surface spinning roller X to Initial fix and master
The vertical range of axis longitudinal center line, RSFor the radius of main shaft, δ is between the conical surface inflection point of drip molding and the minimum of the outerface of spindle
Gap, LBFor the axial width of spherical surface spinning roller, rBFor spherical surface spinning roller longitudinal edge along rounded corner radius, β be drip molding longitudinal section
Semi-cone angle；Then the X that will be calculatedBCSRIt inputs in the system of cnc spinning machine；
Step 5: determine that spherical surface spinning roller and drip molding frustum section finally contact on the spherical surface spinning roller when completing all deformed
Point, and calculate on spherical surface spinning roller that final contact point is in the coordinate of mould pressing initial stage, its calculation formula is LT=RB-RB·
sinβ+t0And rT=RS+δ-LTTan β, in formula, LTFor contact point final on spherical surface spinning roller the mould pressing initial stage Z-direction
Coordinate, RBFor the radius of spherical surface spinning roller, β is the longitudinal section semi-cone angle of the frustum section of drip molding, t0For the thickness of round slab, rT
For contact point final on spherical surface spinning roller the mould pressing initial stage X to coordinate, RSThe radius of main shaft, δ are the cone of drip molding
The minimum clearance of face inflection point and the outerface of spindle；Then the L that will be calculatedTAnd rTIt inputs in the system of cnc spinning machine；
Step 6: determine the X of drip molding frustum section final contact point on spherical surface spinning roller when completing all deformed to displacement
It is displaced with Z-direction, its calculation formula is MA-X=RA-rTAnd MA-Z=MA-X/ tan β, in formula, MA-XIt is completed entirely for drip molding frustum section
When portion deforms on spherical surface spinning roller the X of final contact point to displacement, RAFor drip molding frustum section, when completing all deformed, spherical surface revolves
The vertical range of final contact point and main shaft longitudinal center line, r on wheelTIt is contact point final on spherical surface spinning roller at the beginning of mould pressing
The X in stage beginning is to coordinate, MA-ZFor the Z-direction position of drip molding frustum section final contact point on spherical surface spinning roller when completing all deformed
It moves, β is the longitudinal section semi-cone angle of the frustum section of drip molding；Then the M that will be calculatedA-XAnd MA-ZInput cnc spinning machine is
In system；
Step 7: by drip molding frustum section when completing all deformed on spherical surface spinning roller in final contact point and main shaft axial direction
The vertical range of heart line is set as the radius value of drip molding cylindrical section, concurrently sets drip molding cylindrical section when completing all deformed
Z-direction displacement, and Z-direction displacement setting value is greater than the axial depth preset value of drip molding cylindrical section；Again by the X of spherical surface spinning roller to
Initial fix is set as the shaping contact point of drip molding cylindrical section；Then by the system of the parameter set input cnc spinning machine
In；
Step 8: starting cnc spinning machine, the processing program generated according to system are executed without mould spin-forming procedure, until
Round slab is processed into the drip molding of frustum cylinder combination shape.
The spherical surface spinning roller is connected in the end of a shaft, and the longitudinal center line of spherical surface spinning roller and shaft coincides,
Two groups of thrust bearings are set in shaft, thrust bearing carries out axial limiting by nut, and shaft passes through thrust bearing and spinning roller
Mounting rack is connected, and spherical surface spinning roller has revolution freedom degree on spinning roller mounting rack.
Beneficial effects of the present invention:
Frustum cylinder combination shape thin-wall part based on spherical surface spinning roller of the invention is firstly introduced spherical surface rotation without mould spin-on process
Wheel, while mould pressing is carried out with specific spinning roller path locus, the frustum of product design and predevelopment phase can be effectively improved
Cylinder combines the processing efficiency of shape thin-wall part, can further play no mould rotary pressure technology in the system of product beforehand research and pilot stage
Make flexibility.
Detailed description of the invention
Fig. 1 is round slab clamping schematic diagram；
Fig. 2 is round slab spin-forming procedure schematic diagram；
Fig. 3 is the portion I enlarged drawing in Fig. 2；
Fig. 4 is the structural schematic diagram of spherical surface spinning roller；
Fig. 5 is the pictorial diagram of drip molding；
In figure, 1-main shaft, 2-tail tops, 3-round slabs, 4-spherical surface spinning rollers, 5-drip moldings, 6-shafts, 7-are pushed away
Power bearing, 8-nuts.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
In the present embodiment, the model PS-CNCSXY-5 of cnc spinning machine, Siemens CNC system built in cnc spinning machine
System, the revolving speed of main shaft 1 are set as 200r/min；The outer diameter of round slab 3 is 100mm, and the plate thickness of round slab 3 is 2.05mm, circle
The material of shape slab 3 is 6061-O state aluminium alloy；The frustum section initial cross sectional radius of circle of drip molding 5 is 25mm, drip molding 5
The axial depth of frustum section is 16mm, and the axial depth of the cylindrical section of drip molding 5 is 15mm, and the vertical of the frustum section of drip molding 5 cuts
Face semi-cone angle is 25 °, and the pictorial diagram of drip molding 5 is as shown in Figure 5.
It is a kind of based on spherical surface spinning roller frustum cylinder combination shape thin-wall part without mould spin-on process, include the following steps:
Step 1: selecting a cnc spinning machine, by round slab 3 main shaft 1 of the clamping to cnc spinning machine as shown in Figure 1
Between tail top 2, guarantee round slab 3, the longitudinal center line of 2 three of main shaft 1 and tail top coincides；
Step 2: homemade spherical surface spinning roller 4 is installed on cnc spinning machine, and the longitudinal edge of spherical surface spinning roller 4 is along processing
There is rounded corner, is smooth tangent transition between rounded corner and the main body spherical surface of spherical surface spinning roller 4；The height for adjusting spherical surface spinning roller 4, makes
Spherical surface spinning roller 4, round slab 3, main shaft 1 and the longitudinal center line on tail top 2 four are in same level, and spherical surface spinning roller 4
Longitudinal center line it is parallel with the longitudinal center line of main shaft 1；
Step 3: control spherical surface spinning roller 4 is moved along Z axis, as shown in Figure 2,3, until the spherical arc top of spherical surface spinning roller 4 and circle
The spinning surface of shape slab 3 is in contact, and the contact point is denoted as to the Z-direction Initial fix of spherical surface spinning roller 4, and spherical surface spinning roller 4
Z-direction Initial fix coordinate calculation formula be ZBCSR=-t0, in formula, ZBCSRFor the Z-direction starting point anchor point of spherical surface spinning roller 4
Coordinate, t0For the thickness of round slab 3；
Step 4: control spherical surface spinning roller 4 moves along the x-axis, as shown in Figure 2,3, and the radial dimension of spherical surface spinning roller 4 is maximum
Point is denoted as X to Initial fix, and the X of spherical surface spinning roller 4 to the coordinate calculation formula of Initial fix be XBCSR=rS, wherein rS
=(RS+δ)-(LB-rB) tan β, in formula, XBCSRFor spherical surface spinning roller 4 X to Initial fix coordinate, rSFor spherical surface spinning roller 4 X to
The vertical range of Initial fix and 1 longitudinal center line of main shaft, RSFor the radius of main shaft 1, δ be drip molding 5 conical surface inflection point with
The minimum clearance of 1 outer surface of main shaft, LBFor the axial width of spherical surface spinning roller 4, rBFor spherical surface spinning roller 4 longitudinal edge along rounded corner
Radius, β are the longitudinal section semi-cone angle of drip molding 5；Then the X that will be calculatedBCSRIt inputs in the system of cnc spinning machine；
Step 5: as shown in Figure 2,3, the spherical surface of spherical surface spinning roller 4 and 5 frustum section of drip molding when completing all deformed is determined
Final contact point on spinning roller 4, and coordinate of the final contact point in the mould pressing initial stage on spherical surface spinning roller 4 is calculated, it calculates
Formula is LT=RB-RB·sinβ+t0And rT=RS+δ-LTTan β, in formula, LTIt is contact point final on spherical surface spinning roller 4 in spinning
Shape the Z-direction coordinate of initial stage, RBFor the radius of spherical surface spinning roller 4, β is the longitudinal section semi-cone angle of the frustum section of drip molding 5, t0
For the thickness of round slab 3, rTFor contact point final on spherical surface spinning roller 4 the mould pressing initial stage X to coordinate, RSMain shaft 1
Radius, δ be drip molding 5 conical surface inflection point and 1 outer surface of main shaft minimum clearance；Then the L that will be calculatedTAnd rTInput
In the system of cnc spinning machine；
Step 6: as shown in Figure 2,3, the most terminating on spherical surface spinning roller 4 when completing all deformed of 5 frustum section of drip molding is determined
The X of contact is to displacement and Z-direction displacement, and its calculation formula is MA-X=RA-rTAnd MA-Z=MA-X/ tan β, in formula, MA-XFor drip molding 5
The X of frustum section final contact point on spherical surface spinning roller 4 when completing all deformed is to displacement, RAIt is completed for 5 frustum section of drip molding
When all deformed on spherical surface spinning roller 4 final contact point and 1 longitudinal center line of main shaft vertical range, rTFor on spherical surface spinning roller 4 most
Terminating contact the mould pressing initial stage X to coordinate, MA-ZFor 5 frustum section of drip molding, when completing all deformed, spherical surface revolves
The Z-direction displacement of final contact point, β are the longitudinal section semi-cone angle of the frustum section of drip molding 5 on wheel 4；Then the M that will be calculatedA-X
And MA-ZIt inputs in the system of cnc spinning machine；
Step 7: as shown in Figure 2,3,5 frustum section of drip molding is finally contacted on spherical surface spinning roller 4 when completing all deformed
Point is set as the radius value of 5 cylindrical section of drip molding with the vertical range of 1 longitudinal center line of main shaft, concurrently sets 5 cylinder of drip molding
Z-direction displacement of the section when completing all deformed, and Z-direction displacement setting value be greater than 5 cylindrical section of drip molding axial depth it is default
Value；The X of spherical surface spinning roller 4 is set as to the shaping contact point of 5 cylindrical section of drip molding to Initial fix again；Then the ginseng that will be set
In the system of number input cnc spinning machine；
Step 8: starting cnc spinning machine, the processing program generated according to system are executed without mould spin-forming procedure, until
Round slab 3 is processed into the drip molding 5 of frustum cylinder combination shape, after actual measurement, the size and shape precision of drip molding 5 exists
Within 0.05mm.
As shown in figure 4, the spherical surface spinning roller 4 is connected in the end of a shaft 6, in the axial direction of spherical surface spinning roller 4 and shaft 6
Heart line coincides, and two groups of thrust bearings 7 are set in shaft 6, and thrust bearing 7 carries out axial limiting, shaft 6 by nut 8
It is connected by thrust bearing 7 with spinning roller mounting rack, spherical surface spinning roller 4 has revolution freedom degree on spinning roller mounting rack.
The scope of patent protection that scheme in embodiment is not intended to limit the invention, it is all without departing from carried out by the present invention etc.
Effect implements or change, is both contained in the scope of the patents of this case.
Claims (2)
1. a kind of frustum cylinder combination shape thin-wall part based on spherical surface spinning roller is without mould spin-on process, it is characterised in that including walking as follows
It is rapid:
Step 1: selecting a cnc spinning machine, by between the main shaft and tail top of round slab clamping to cnc spinning machine, guarantees
The longitudinal center line of round slab, main shaft and tail top three coincides；
Step 2: homemade spherical surface spinning roller is installed on cnc spinning machine, and the longitudinal edge of spherical surface spinning roller falls along circle is machined with
It is smooth tangent transition between the main body spherical surface of angle, rounded corner and spherical surface spinning roller；The height for adjusting spherical surface spinning roller, revolves spherical surface
Wheel, round slab, main shaft and the longitudinal center line on tail top are in same level, and the longitudinal center line of spherical surface spinning roller
It is parallel with the longitudinal center line of main shaft；
Step 3: control spherical surface spinning roller is moved along Z axis, spherical arc top and the spinning surface phase of round slab until spherical surface spinning roller
It contacts, and the contact point is denoted as to the Z-direction Initial fix of spherical surface spinning roller, and the coordinate of the Z-direction Initial fix of spherical surface spinning roller
Calculation formula is ZBCSR=-t0, in formula, ZBCSRFor the Z-direction starting point anchor point coordinate of spherical surface spinning roller, t0For the thickness of round slab
Degree；
Step 4: control spherical surface spinning roller moves along the x-axis, and the radial dimension maximum point of spherical surface spinning roller is denoted as X and is positioned to starting
Point, and the X of spherical surface spinning roller to the coordinate calculation formula of Initial fix be XBCSR=rS, wherein rS=(RS+δ)-(LB-rB)tan
β, in formula, XBCSRFor spherical surface spinning roller X to Initial fix coordinate, rSIt is axial to Initial fix and main shaft for the X of spherical surface spinning roller
The vertical range of center line, RSFor the radius of main shaft, δ is the conical surface inflection point of drip molding and the minimum clearance of the outerface of spindle, LBFor
The axial width of spherical surface spinning roller, rBFor spherical surface spinning roller longitudinal edge along rounded corner radius, β be drip molding longitudinal section half cone
Angle；Then the X that will be calculatedBCSRIt inputs in the system of cnc spinning machine；
Step 5: determining spherical surface spinning roller and drip molding frustum section final contact point on the spherical surface spinning roller when completing all deformed,
And calculate on spherical surface spinning roller that final contact point is in the coordinate of mould pressing initial stage, its calculation formula is LT=RB-RB·sinβ
+t0And rT=RS+δ-LTTan β, in formula, LTZ-direction for contact point final on spherical surface spinning roller in the mould pressing initial stage is sat
Mark, RBFor the radius of spherical surface spinning roller, β is the longitudinal section semi-cone angle of the frustum section of drip molding, t0For the thickness of round slab, rTFor
Final contact point is in the X of mould pressing initial stage to coordinate, R on spherical surface spinning rollerSThe radius of main shaft, δ are the conical surface of drip molding
The minimum clearance of inflection point and the outerface of spindle；Then the L that will be calculatedTAnd rTIt inputs in the system of cnc spinning machine；
Step 6: determine the X of drip molding frustum section final contact point on spherical surface spinning roller when completing all deformed to displacement and Z-direction
Displacement, its calculation formula is MA-X=RA-rTAnd MA-Z=MA-X/ tan β, in formula, MA-XIt completes all to become for drip molding frustum section
When shape on spherical surface spinning roller the X of final contact point to displacement, RAFor drip molding frustum section complete it is all deformed when spherical surface spinning roller on
The vertical range of final contact point and main shaft longitudinal center line, rTIt is contact point final on spherical surface spinning roller in the initial rank of mould pressing
The X of section is to coordinate, MA-ZFor the Z-direction displacement of drip molding frustum section final contact point on spherical surface spinning roller when completing all deformed, β
For the longitudinal section semi-cone angle of the frustum section of drip molding；Then the M that will be calculatedA-XAnd MA-ZThe system for inputting cnc spinning machine
In；
Step 7: by drip molding frustum section when completing all deformed final contact point and main shaft longitudinal center line on spherical surface spinning roller
Vertical range be set as the radius value of drip molding cylindrical section, concurrently set Z of the drip molding cylindrical section when completing all deformed
To displacement, and Z-direction displacement setting value is greater than the axial depth preset value of drip molding cylindrical section；Again by the X of spherical surface spinning roller to rise
Beginning anchor point is set as the shaping contact point of drip molding cylindrical section；Then by the system of the parameter set input cnc spinning machine
In；
Step 8: starting cnc spinning machine, the processing program generated according to system are executed without mould spin-forming procedure, until that will justify
Shape slab is processed into the drip molding of frustum cylinder combination shape.
2. a kind of frustum cylinder combination shape thin-wall part based on spherical surface spinning roller according to claim 1 is without mould spin-on process,
It is characterized by: the spherical surface spinning roller is connected in the end of a shaft, the longitudinal center line of spherical surface spinning roller and shaft coincides,
Two groups of thrust bearings are set in shaft, thrust bearing carries out axial limiting by nut, and shaft passes through thrust bearing and rotation
Wheel mounting rack is connected, and spherical surface spinning roller has revolution freedom degree on spinning roller mounting rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116672.1A CN109746300B (en) | 2019-02-15 | 2019-02-15 | Frustum cylindrical combined thin-wall part die-free spinning method based on spherical spinning wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116672.1A CN109746300B (en) | 2019-02-15 | 2019-02-15 | Frustum cylindrical combined thin-wall part die-free spinning method based on spherical spinning wheel |
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| CN109746300A true CN109746300A (en) | 2019-05-14 |
| CN109746300B CN109746300B (en) | 2020-03-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111054819A (en) * | 2019-11-22 | 2020-04-24 | 华南理工大学 | Precise plastic forming method for deep cup-shaped thin-walled part |
| CN111881517A (en) * | 2020-07-21 | 2020-11-03 | 沈阳航空航天大学 | Asymmetric spinning method for pipe fitting local circular arc-shaped opening based on profiling spinning wheel |
| CN112958682A (en) * | 2021-02-20 | 2021-06-15 | 沈阳航空航天大学 | Near-equal-thickness die-free spinning method for convex bus revolving body thin-walled part |
| WO2022257320A1 (en) * | 2021-06-07 | 2022-12-15 | 四川航天长征装备制造有限公司 | Forming method of cover for spaceflight |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112958682A (en) * | 2021-02-20 | 2021-06-15 | 沈阳航空航天大学 | Near-equal-thickness die-free spinning method for convex bus revolving body thin-walled part |
| CN112958682B (en) * | 2021-02-20 | 2022-07-08 | 沈阳航空航天大学 | Near-equal-thickness die-free spinning method for convex bus revolving body thin-walled part |
| WO2022257320A1 (en) * | 2021-06-07 | 2022-12-15 | 四川航天长征装备制造有限公司 | Forming method of cover for spaceflight |
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