CN107283119A - A kind of composite variable cross-section dovetail blind slot processing method - Google Patents
A kind of composite variable cross-section dovetail blind slot processing method Download PDFInfo
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- CN107283119A CN107283119A CN201710357134.2A CN201710357134A CN107283119A CN 107283119 A CN107283119 A CN 107283119A CN 201710357134 A CN201710357134 A CN 201710357134A CN 107283119 A CN107283119 A CN 107283119A
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- blind slot
- variable cross
- section
- abaculus
- dovetail blind
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Milling Processes (AREA)
Abstract
The present invention provides a kind of composite variable cross-section dovetail blind slot processing method, belongs to machining technology field, methods described includes：Make roughing tool, semifinishing cutter and abaculus；Big surplus is removed using the roughing tool, square-section groove is formed；Using the semifinishing cutter from the section feed laterally outside of the square-section groove, the tangent line of the maximum turning circle of cutter is set to be located on the groove bottom contour line of the variable cross-section dovetail blind slot, the square-section groove cecum face and two sides surplus are removed, forming cecum angle has the variable cross-section dovetail blind slot blank of surplus；The abaculus is embedded in variable cross-section dovetail blind slot blank, the variable cross-section dovetail blind slot cecum angle surplus is removed, obtains the workpiece with variable cross-section dovetail blind slot.Processing method that the present invention is provided, it is to avoid the mistake to cecum is cut；Tool life is effectively improved, production cost is reduced；Prevent workpiece dovetail groove process collapses angle.
Description
Technical field
The invention belongs to the mechanical processing technique field of composite, and in particular to a kind of composite variable cross-section dovetail blind slot
Processing method, it is a kind of machinability that variable cross-section dovetail blind slot is realized for composite.
Background technology
Dovetail groove belongs to a kind of mechanical structure, and the structure type is generally used for making mechanical relative motion, is also used for assembling and leads
To, positioning and support.Because its kinematic accuracy is high, stably, it is widely used in Machine Manufacture.It is similar in guide rail, chute etc.
In oat tail groove structure workpiece, its dovetail groove is generally communicating structure, and processing mode is using slotting mode or customization dovetail Slot shaping
Milling cutter carries out milling.
When dovetail groove is composite variable cross-section dovetail blind slot, two sides and bottom surface are relative to workpiece bottom in dovetail groove
It is inclined-plane, and section extending end is in non-through blind slot structure type, can be in swallow using traditional dovetail groove processing method
Stern notch terminal position produced the problem of cutting, and its processing technology need to be optimized to tool cutting path, i.e., in cutter and workpiece not
The processing to dovetail groove is completed in the case of interference.Meanwhile, traditional dovetail groove processing method can not meet adding for composite
Work demand, tool life reduction, while accordingly improving production cost, reduces machined surface quality.
The content of the invention
It is an object of the invention to the defect for prior art, a kind of composite variable cross-section dovetail blind slot processing is proposed
Method, to meet process requirements, reduces production cost, improves machined surface quality.
The technical solution adopted by the present invention is, a kind of composite variable cross-section dovetail blind slot processing method, including following step
Suddenly：
A kind of composite variable cross-section dovetail blind slot processing method, comprises the following steps：
Step 1：Roughing tool, semifinishing cutter and abaculus are made, wherein, the size of the abaculus becomes with standard cuts
Face dovetail blind slot size matching；
Step 2：Big surplus is removed using the roughing tool, square-section groove is formed；
Step 3：Using the semifinishing cutter from the section feed laterally outside of the square-section groove, make cutter
The tangent line of maximum turning circle is located on the groove bottom contour line of the variable cross-section dovetail blind slot, removes the square-section groove blind
End face and two sides surplus, forming cecum angle has the variable cross-section dovetail blind slot blank of surplus；
Step 4：The abaculus is embedded in the variable cross-section dovetail blind slot blank, variable cross-section dovetail blind slot cecum folder is removed
Surplus at angle, obtains the workpiece with variable cross-section dovetail blind slot.
In an alternative embodiment, the aperture area of the composite variable cross-section dovetail blind slot is less than bottom land area, and
Plane where bottom land has angle, side of the area of section edge away from cecum of the variable cross-section dovetail blind slot with plane where opening
To gradually increasing.
In an alternative embodiment, the roughing tool is the slotting cutter that surface is provided with diamond abrasive grain, the Buddha's warrior attendant
The particle diameter of stone mill grain is 60~80 mesh.
In an alternative embodiment, the semifinishing cutter is the fish-tail cutter that surface is provided with diamond abrasive grain, institute
The particle diameter for stating diamond abrasive grain is 60~80 mesh.
In an alternative embodiment, the roughing tool speed of mainshaft described in step 2 is 1500~2000rpm, feeding speed
Degree is no more than 600mmpm.
In an alternative embodiment, semifinishing speed of cutter spindle described in step 3 is 1500~2000rpm, feeding
Speed is no more than 150mmpm.
In an alternative embodiment, the cutter shear blade drives cross chip area, and side edge opens helical flute.
In an alternative embodiment, the minimum that the diameter of the roughing tool is not more than the variable cross-section dovetail blind slot is opened
Mouth width；The maximum gauge of the finishing tool is not more than the minimum bottom width of the variable cross-section dovetail blind slot.
In an alternative embodiment, dust collection equipment cleaning cutting dust is used in step 2 or step 3.
In an alternative embodiment, the abaculus includes limiting plate and the abaculus matrix being connected with the limiting plate, described
One end on abaculus matrix corresponding to standard variable cross-section dovetail blind slot cecum is provided with groove, and the side surface of the groove is inclined-plane,
And wedge angle is crossed to form with the side surface of the abaculus matrix, the limiting plate is positioned at the abaculus matrix and the wedge angle phase
To one end, the depth of variable cross-section dovetail blind slot blank is embedded in for limiting the abaculus matrix.
Compared with prior art, the present invention has the advantages that：
The invention provides a kind of processing method of composite variable cross-section dovetail blind slot, by roughing, semifinishing,
The technological process of last trial refine realizes the processing to workpiece；
By controlling the cutter track track during semifinishing, it is to avoid the mistake to cecum is cut；
Meanwhile, using special electroplated diamond cutter, tool life is effectively improved, production cost is reduced；
Reduce the amount of feeding of semifinishing process, it is therefore prevented that workpiece dovetail groove process collapses angle, preferably ensure that
The crudy of workpiece.
Brief description of the drawings
Fig. 1 is that the embodiments of the invention provide a kind of composite variable cross-section dovetail blind slot processing method flow chart；
Fig. 2 is the structural representation of variable cross-section dovetail blind slot in the embodiment of the present invention；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 2 top view；
Fig. 5 is semifinishing cutter path of the embodiment of the present invention；
Fig. 6 is the slotting cutter of electroplated diamond abrasive particle provided in an embodiment of the present invention；
Fig. 7 is the fish-tail cutter of electroplated diamond abrasive particle provided in an embodiment of the present invention.
Fig. 8 is abaculus structural representation provided in an embodiment of the present invention；
Fig. 9 is another viewing angle constructions schematic diagram of abaculus provided in an embodiment of the present invention；
Figure 10 is the wedge angle partial schematic diagram of abaculus provided in an embodiment of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Referring to Fig. 1, the embodiments of the invention provide a kind of composite variable cross-section dovetail blind slot processing method, including it is following
Step：
Step 1：Roughing tool, semifinishing cutter and abaculus are made, wherein, the size of the abaculus becomes with standard cuts
Face dovetail blind slot size matching；
Specifically, in the embodiment of the present invention, the aperture area of the composite variable cross-section dovetail blind slot is less than groove bottom
Plane where product, and bottom land has angle with plane where opening, and the area of section of the variable cross-section dovetail blind slot is along away from blind
The direction at end gradually increases；The composite is that the fiber-reinforced resin bases such as glass fibre, quartz fibre, aramid fiber are combined
Material.
Specifically, referring to Fig. 2-4, in the embodiment of the present invention, step 1 includes：
Step 1a：Standard variable cross-section dovetail blind slot size is determined, including (opening is minimum for dovetail blind slot dovetail side minimum range
Width) L1, dovetail blind slot root minimum range (groove bottom minimum widith) L2, dovetail blind slot medial surface and groove bottom angle theta 1,
Groove bottom and workpiece bottom angle theta 2, dovetail side and centerlines θ 3；
Step 1b：Size customization cutter is recorded according to step 1a：1) roughing tool is used as according to size L1 customizations
Slotting cutter, its diameter D1 should be less than L1；2) fish-tail cutter as semifinishing cutter, knife are customized according to size L1, L2, θ 1
Have side edge angle, θ and be equal to θ 1, bottom maximum rotating diameter D2 is less than L2；
Referring to Fig. 6 and 7, in the embodiment of the present invention, to improve tool life, production cost, the roughing knife are reduced
Has the slotting cutter 1 that diamond abrasive grain is provided with for surface, the particle diameter of the diamond abrasive grain is 60~80 mesh；The semifinishing knife
Has the fish-tail cutter 3 that diamond abrasive grain 2 is provided with for surface, the particle diameter of the diamond abrasive grain is 60~80 mesh.The Buddha's warrior attendant
Stone mill grain is arranged on tool surface by way of plating.For ease of excluding composite crumb, the cutter shear blade opens cross
Chip area, side edge opens helical flute.The embodiment of the present invention is applied to glass fiber compound material especially.
Step 2：Big surplus is removed using the roughing tool, square-section groove is formed；
Specifically, on the composite material work piece of dovetail blind slot to be processed, find Working position accurately, use the roughing knife
Tool removes big surplus, forms square-section groove, and the roughing tool speed of mainshaft is 1500~2000rpm during processing, is entered
600mmpm is no more than to speed.To avoid fiber from not cutting off, feed speed control is operated within the specific limits, while from
Higher cutting parameter in prescribed limit, to improve roughing efficiency.
Step 3：Using the semifinishing cutter from the section feed laterally outside of the square-section groove, make cutter
The tangent line of maximum turning circle is located on the groove bottom contour line of the variable cross-section dovetail blind slot, removes the square-section groove blind
End face and two sides surplus, forming cecum angle has the variable cross-section dovetail blind slot blank of surplus；
Specifically, semifinishing speed of cutter spindle described in step 3 of the embodiment of the present invention is 1500~2000rpm, is entered
150mmpm is no more than to speed.By controlling the speed of mainshaft and feed speed, it is to avoid composite collapses angle, work is improved
Part machining accuracy.
Step 4：The abaculus is embedded in variable cross-section dovetail blind slot blank, the variable cross-section dovetail blind slot cecum folder is removed
Surplus at angle, obtains the workpiece with variable cross-section dovetail blind slot.
Specifically, because the chip of fibrous composite process formation is different from metal, in dust-like, have to human body
Evil.Cutting fluid can be produced in large effect, the embodiment of the present invention to fibrous composite performance itself, in step 2 or step 3
Without using cutting fluid, the cutting dust of composite is cleared up during feed in time using dust collection equipment.
Specifically, in an alternative embodiment, referring to Fig. 8-10, the abaculus includes limiting plate 4 and abaculus matrix 5, embedding
The overall size of block matrix 5 is identical with standard variable cross-section dovetail blind slot size, unique the difference is that corresponding to mark on abaculus matrix 5
One end of quasi- variable cross-section dovetail blind slot cecum is provided with groove, and the side surface of the groove is inclined-plane, and with the side table of abaculus matrix 5
Face is crossed to form wedge angle, and limiting plate 4 is located at one end relative with wedge angle of abaculus matrix 5, for limiting the insertion change of abaculus matrix 5
The depth of section dovetail blind slot blank.Ensure that the problem of cutting was not present in dovetail groove cecum by limiting plate, accurate control dovetail is blind
The working depth of groove；By setting wedge angle, by the use of the wedge angle as cutting edge, when inserting abaculus to variable cross-section dovetail blind slot
The side wall of blank is finished, and directly removes surplus, obtains the higher variable cross-section dovetail blind slot of type face precision, and the present invention is implemented
In example, abaculus material uses high-speed steel, with good toughness and higher hardness, and wedge angle angle [alpha] is 15-25 °；Angle is got over
Greatly, root material processing drag is bigger；Angle is smaller, and drag is smaller, but its wedge angle intensity declines therewith, chipping easily occurs
Situation.
In other embodiments, abaculus overall size can be identical with the size of standard variable cross-section dovetail blind slot, during refine,
The abaculus is embedded in variable cross-section dovetail blind slot blank, when abaculus is by card, abaculus is calculated by card position, according to abaculus by card
Position is cut surplus in blank, then again by abaculus be embedded in variable cross-section dovetail blind slot blank in, if abaculus outer face with
Dovetail blind slot outer face is completely superposed, then stop processing, obtain high-precision variable cross-section dovetail blind slot, if abaculus outer face still without
Method is completely superposed with dovetail blind slot outer face, then calculates both ends of the surface difference.Working position is determined according to the difference, continued to swallow
Tail blind slot is finished, until abaculus outer face is completely superposed with dovetail blind slot outer face, is then stopped processing, is obtained high accuracy
Variable cross-section dovetail blind slot.
The invention provides a kind of processing method of composite variable cross-section dovetail blind slot, by roughing, semifinishing,
The technological process of last trial refine realizes the processing to workpiece；By controlling the cutter track track in finishing passes, it is to avoid
Mistake to cecum is cut；Special electroplated diamond cutter is used simultaneously, is effectively improved tool life, is reduced and be produced into
This；Reduce the amount of feeding of semifinishing process, it is therefore prevented that workpiece dovetail groove process collapses angle, preferably ensure that workpiece
Crudy.
It is below the specific embodiment of the present invention：
Workpiece to be processed is the Matrix Fiberglass Composite Explosive being molded by mould pressing process, and variable cross-section dovetail to be processed is blind
Groove is located on blank intrados, and its processing is comprised the following steps that：
S1：Measure variable cross-section dovetail blind slot size, dovetail blind slot dovetail side minimum range L1=15mm, dovetail blind slot root
2=5 ° of 1=60 ° of minimum range L2=19.5mm, dovetail blind slot medial surface and bottom surface angle theta, bottom surface and workpiece bottom angle theta,
Dovetail side and centerlines θ 3=8.25 °；
S2：Size customization cutter is recorded according to step S1：1) electroplated diamond slotting cutter is customized according to size L1, its is straight
Footpath D1=10mm；2) electroplated diamond fish-tail cutter is customized according to size L1, L2, θ 1, cutter side basil degree is equal to θ=60 °,
Bottom maximum rotating diameter D2=15mm；Diamond grain particle size selects 60~80 mesh, and cutter shear blade drives cross chip area, side edge
Open helical flute.
S3：Swivel table is placed on platen, workpiece blank is positioned on swivel table, and locating clip
Tightly, adjustment swivel table angle is parallel with platen to dovetail groove bottom, i.e. dovetail groove bottom is vertical with main shaft, centering bottom
Face and blank end face center, determine working origin, and workpiece blank position is then adjusted in the horizontal plane, makes workpiece blank in lathe
With keeping same position in the Cutter coordinate system in threedimensional model in coordinate system；
S4：Roughing program is worked out according to threedimensional model using the computer-aided manufacturing functional module of UG softwares, used
Special plating diamond slotting cutter, the speed of mainshaft is 1600rpm, and feed speed is 500mmpm, using following member perimeter cutter track plan
Omit except big surplus, form square-section groove, process without using cutting fluid, cleared up in time using dust collection equipment during feed
The cutting dust of composite；
S5：Cutter is changed, using plating diamond fish-tail cutter semifinishing variable cross-section dovetail blind slot, cutter is controlled from swallow
Stern notch section feed laterally outside, the speed of mainshaft is 1600rpm, and feed speed is 120mmpm, and cutter is set according to tool diameter
Radius compensation, control finishing tool path, from dovetail groove feed laterally outside, referring to Fig. 5, starts in feed point (x1, y1)
Cutting, makees linear interpolation feeding, reaches after dovetail groove root flex point (x2, y2), is fed parallel to workbench X-direction, reaches root
The symmetrical point (x3, y3) of portion and (x2, y2), finally to (x1, y1) symmetrical point (x4, y4), complete dovetail groove both sides dovetail
In the remaining cutting in place, working angles, dovetail groove bottom is z to zero point, the medial surface of cutter shaft track all the time parallel to dovetail groove；It is right
Avoided cutting at dovetail groove root, and the tangent line of the maximum turning circle of cutter is located at the groove bottom wheel of the variable cross-section dovetail blind slot
On profile；Processing clears up the cutting dust of composite in time without using cutting fluid using dust collection equipment during feed；
S6：Abaculus is made according to variable cross-section dovetail blind slot size, the abaculus includes limiting plate 4, abaculus matrix 5, connection
Screw 6；Abaculus matrix 5 is corresponding with the conjunction of dovetail blind slot matching size, unique to be cut the difference is that becoming on abaculus matrix 5 corresponding to standard
One end of face dovetail blind slot cecum is provided with groove, and the side surface of the groove is inclined-plane, and is intersected with the side surface of abaculus matrix 5
Be formed as 20 ° of sharp swords；
S7：Pincers worker trial assembly abaculus, slips into dovetail blind slot from side and coordinates with dovetail face, refine dovetail groove root surplus,
File is carried out to root to repair, the workpiece with variable cross-section dovetail blind slot is obtained, while being demonstrated by the trial of abaculus using instrument
Machine the dovetail blind slot of workpiece.
Variable cross-section dovetail blind slot finished surface fiber provided in an embodiment of the present invention is concordant, no chipping；Measure dovetail angle
60.017 ° of degree, trench bottom minimum widith 20.2mm, Breadth Maximum 40.15mm are assembled with the diclinic dovetail groove sliding block of corresponding installation
Precision is high, no assembling interference problem, realizes the processing of fibre reinforced composites diclinic dovetail blind slot workpiece.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.Described specific embodiment is only pair
Spirit explanation for example of the invention.The personnel of the technical field of the invention can do different repair to described specific embodiment
Change or supplement or replaced using similar mode, but spirit without departing from the present invention or surmount appended claims and defined
Scope.
Claims (10)
1. a kind of composite variable cross-section dovetail blind slot processing method, it is characterised in that comprise the following steps：
Step 1：Roughing tool, semifinishing cutter and abaculus are made, wherein, size and the standard variable cross-section swallow of the abaculus
Tail blind slot size is matched；
Step 2：Big surplus is removed using the roughing tool, square-section groove is formed；
Step 3：Using the semifinishing cutter from the section feed laterally outside of the square-section groove, make cutter maximum
The tangent line of turning circle is located on the groove bottom contour line of the variable cross-section dovetail blind slot, removes the square-section groove cecum face
And two sides surplus, forming cecum angle has the variable cross-section dovetail blind slot blank of surplus；
Step 4：The abaculus is embedded in the variable cross-section dovetail blind slot blank, variable cross-section dovetail blind slot cecum angle is removed
Surplus, obtains the workpiece with variable cross-section dovetail blind slot.
2. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1, it is characterised in that described multiple
Plane where the aperture area of condensation material variable cross-section dovetail blind slot is less than bottom land area, and bottom land has folder with plane where opening
Angle, the area of section of the variable cross-section dovetail blind slot gradually increases along the direction away from cecum.
3. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1, it is characterised in that：It is described thick
Process tool is the slotting cutter that surface is provided with diamond abrasive grain, and the particle diameter of the diamond abrasive grain is 60~80 mesh.
4. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1, it is characterised in that：Described half
Finishing tool is the fish-tail cutter that surface is provided with diamond abrasive grain, and the particle diameter of the diamond abrasive grain is 60~80 mesh.
5. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1 or 3, it is characterised in that：Step
The roughing tool speed of mainshaft described in rapid 2 is 1500~2000rpm, and feed speed is no more than 600mmpm.
6. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1 or 4, it is characterised in that：Step
Semifinishing speed of cutter spindle described in rapid 3 is 1500~2000rpm, and feed speed is no more than 150mmpm.
7. a kind of composite variable cross-section dovetail blind slot processing method according to claim 3 or 4, it is characterised in that：Institute
State cutter shear blade and drive cross chip area, side edge opens helical flute.
8. a kind of composite variable cross-section dovetail blind slot processing method according to claim 3 or 4, it is characterised in that：Institute
The diameter for stating roughing tool is not more than the minimal openings width of the variable cross-section dovetail blind slot；The maximum of the finishing tool
Diameter is not more than the minimum bottom width of the variable cross-section dovetail blind slot.
9. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1, it is characterised in that：Step 2
Or dust collection equipment cleaning cutting dust is used in step 3.
10. a kind of composite variable cross-section dovetail blind slot processing method according to claim 1, it is characterised in that：It is described
Abaculus includes corresponding to standard variable cross-section dovetail on limiting plate and the abaculus matrix being connected with the limiting plate, the abaculus matrix
One end of blind slot cecum is provided with groove, and the side surface of the groove is inclined-plane, and intersects shape with the side surface of the abaculus matrix
It is pointed at, the limiting plate is located at one end relative with the wedge angle of the abaculus matrix, for limiting the abaculus matrix
The depth of embedded variable cross-section dovetail blind slot blank.
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| CN201710357134.2A CN107283119B (en) | 2017-05-19 | 2017-05-19 | A kind of composite material variable cross-section dovetail blind slot processing method |
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| CN201710357134.2A CN107283119B (en) | 2017-05-19 | 2017-05-19 | A kind of composite material variable cross-section dovetail blind slot processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110588837A (en) * | 2019-10-10 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Multifunctional vehicle for overhauling and maintaining suspension type monorail |
| CN114669788A (en) * | 2022-03-28 | 2022-06-28 | 芜湖通潮精密机械股份有限公司 | Milling method for CVD (chemical vapor deposition) back plate sealing dovetail groove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110588837A (en) * | 2019-10-10 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Multifunctional vehicle for overhauling and maintaining suspension type monorail |
| CN114669788A (en) * | 2022-03-28 | 2022-06-28 | 芜湖通潮精密机械股份有限公司 | Milling method for CVD (chemical vapor deposition) back plate sealing dovetail groove |
| CN114669788B (en) * | 2022-03-28 | 2024-04-26 | 芜湖通潮精密机械股份有限公司 | Milling method for CVD backboard sealing dovetail groove |
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| Publication number | Publication date |
|---|---|
| CN107283119B (en) | 2019-10-22 |
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