CN109500675A - A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet - Google Patents
A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet Download PDFInfo
- Publication number
- CN109500675A CN109500675A CN201811396588.1A CN201811396588A CN109500675A CN 109500675 A CN109500675 A CN 109500675A CN 201811396588 A CN201811396588 A CN 201811396588A CN 109500675 A CN109500675 A CN 109500675A
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- China
- Prior art keywords
- titanium alloy
- alloy sheet
- carbon steel
- sides
- magnetic conductivity
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- Legal status (The legal status 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 status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/07—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/068—Table-like supports for panels, sheets or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention provides a kind of aspect and grinds fixer for machining, magnetic conductivity carbon steel chassis and multiple stainless steel sunk screws including rectangle than titanium alloy sheet;Clamping process side is reserved into titanium alloy sheet two sides, and multiple two sides countersunk head through-holes are opened up on technique edges according to titanium alloy sheet thickness and intensity;Multiple two sides countersunk head through-hole equidistantly distributeds open up multiple threaded holes in the two sides long side on magnetic conductivity carbon steel chassis and two sides countersunk head through-hole corresponding position on the technique edges of every side;Titanium alloy sheet is fixed on magnetic conductivity carbon steel chassis by stainless steel sunk screw, and then titanium alloy sheet is fixed on grinding machine by Grinder bench magnechuck energization magnetic carbon steel chassis and carries out grinding.A kind of aspect of the invention grinds fixer for machining and its processing method than titanium alloy sheet, titanium alloy plate grinding problem on deformation can be solved, so that the titanium alloy plate of grinding meets assembly technology requirement before fixed supported slab diffusion welding (DW).
Description
Technical field
The invention belongs to Grinding Technology field, be related to a kind of aspect than titanium alloy sheet grind fixer for machining and its
Processing method.
Background technique
Aspect ratio (6:1) fixed supported slab sub-assembly is designed as two panels titanium alloy sheet diffusion welding structure, and diffusion welding craft is wanted
Ask, the titanium alloy plate front-back depth of parallelism 0.02 before welding, diffusion welding (DW) welding surface roughness Ra 0.8, for before diffusion welding (DW) to titanium
The technical requirements of alloy plate, titanium alloy plate select grinding process to be relatively suitble to, and titanium alloy sheet length of a film 300mm, wide 50mm are thick
8mm, titanium alloy itself select grinding process to need to increase certain clamping fixation without magnetism.Due to 8mm titanium alloy
Plate resistance to deformation intensity with higher selects vacuum chuck absorption difficulty larger, is difficult to fix workpiece;Using surrounding extruding side
Formula not can solve the thermal deformation in grinding process;Using the mode of compression, the structures such as claw and abrasive grinding wheel are interfered on fixture.
Summary of the invention
The present invention provides a kind of aspect and grinds fixer for machining and its processing method than titanium alloy sheet, solves titanium alloy sheet
Piece grinding problem on deformation, so that the titanium alloy plate of grinding meets assembly technology requirement before fixed supported slab diffusion welding (DW).
The present invention provides a kind of aspect and grinds fixer for machining than titanium alloy sheet, and the fixed device includes leading for rectangle
Magnetic carbon steel bottom plate and multiple stainless steel sunk screws;Clamping process side is reserved into titanium alloy sheet two sides, and according to titanium alloy sheet
Thickness and intensity open up multiple two sides countersunk head through-holes on technique edges;Work of multiple two sides countersunk head through-hole equidistantly distributeds in every side
On skill side, multiple threaded holes are opened up in the two sides long side on magnetic conductivity carbon steel chassis and two sides countersunk head through-hole corresponding position;Pass through
Titanium alloy sheet is fixed on magnetic conductivity carbon steel chassis by stainless steel sunk screw, and then is powered by Grinder bench magnechuck
Titanium alloy sheet is fixed on grinding machine and carries out grinding by magnetic carbon steel chassis;
The quantity of threaded hole meets following formula:
Wherein, N is the quantity of threaded hole, and Ft is the tangential grinding force of titanium alloy sheet, and τ is single stainless steel sunk screw
Most receive greatly to shear.
In aspect of the invention than in titanium alloy sheet mill fixer for machining, magnetic conductivity carbon steel chassis uses 45 steel
It is made.
The present invention also provides a kind of aspects to grind processing method than titanium alloy sheet, includes the following steps:
Step 1: clamping process side being reserved into titanium alloy sheet two sides to be processed, according to the thickness of titanium alloy sheet and intensity in work
It opens up multiple through-holes on skill side, and processes at through-hole both ends for avoiding screw countersunk head chamfering outstanding after clamping, form two
Side countersunk head through-hole, multiple two sides countersunk head through-hole equidistantly distributeds are on the technique edges of every side;
Step 2: the technique edges size reserved by titanium alloy sheet to be processed selects 45 steel with magnetic conductivity and preferable intensity
Design of material mill processing magnetic conductivity carbon steel chassis, the distributing position for the two sides countersunk head through-hole reserved by titanium alloy sheet is in magnetic conductivity carbon
Threaded hole is opened up in the two sides long side of steel bottom plate, threaded hole position is corresponding with two sides countersunk head through-hole, chooses length and is greater than
The stainless steel sunk screw of titanium alloy sheet thickness 10mm;
Step 3: before mill machining titanium alloy plate plane, magnetic conductivity carbon steel chassis being placed on grinding machine workbench, makes a call to hundred
Divide table look-up magnetic conductivity carbon steel chassis plane degree, when being unsatisfactory for mill machining titanium alloy plate planar technique condition, mill processing chassis
Plane to flatness meets the fixed requirement of titanium alloy sheet assembly;
Step 4: titanium alloy sheet being placed on magnetic conductivity carbon steel chassis, titanium alloy sheet is fastened on by sunk screw and is led
On magnetic carbon steel bottom plate;
Step 5: clamping magnetic conductivity carbon steel chassis and titanium alloy sheet being placed on Grinder bench together, energization magnetic
Machining titanium alloy plate plane is ground by titanium alloy sheet processing request in attached fixed magnetic conductivity carbon steel chassis, meets after technique requires and dismantles
Lower titanium alloy sheet simultaneously repeats step 4, and mill processes another plane;
Step 6: technique edges being removed using wire cutting or machining process in assembly.
Fixer for machining and its processing method are ground than titanium alloy sheet using a kind of aspect of the invention, make worker operation
Program is simple, high-efficient, solves aspect than titanium alloy sheet grinding problem on deformation, the titanium alloy sheet two sides depth of parallelism and table
Surface roughness precision is controllable, the preparation requirement before meeting fixed supported slab component diffusion welding (DW).
Detailed description of the invention
Fig. 1 is the structural schematic diagram on the chassis of fixation device of the invention;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the structural schematic diagram of titanium alloy sheet to be processed of the invention;
Fig. 4 is the B-B cross-sectional view of Fig. 3;
Fig. 5 is the clamping schematic diagram that titanium alloy sheet is fixed on chassis;
Fig. 6 is the C-C cross-sectional view of Fig. 5.
Specific embodiment
As shown in Figures 1 to 6, a kind of aspect grinds fixer for machining, the magnetic carbon steel bottom including rectangle than titanium alloy sheet
Disk 1 and multiple stainless steel sunk screws 3;Clamping process side is reserved into 2 two sides of titanium alloy sheet, and according to 2 thickness of titanium alloy sheet and
Intensity opens up multiple two sides countersunk head through-holes 21 on technique edges;Technique of multiple 21 equidistantly distributeds of two sides countersunk head through-hole in every side
Bian Shang opens up multiple threaded holes 11 in the two sides long side on magnetic conductivity carbon steel chassis 1 and two sides countersunk head through-hole corresponding position;Pass through
Titanium alloy sheet 2 is fixed on magnetic conductivity carbon steel chassis 1 by stainless steel sunk screw 3, and then passes through Grinder bench magnechuck
Titanium alloy sheet 2 is fixed on grinding machine and carries out grinding by energization magnetic carbon steel chassis 1.
When it is implemented, magnetic conductivity carbon steel chassis 1 is made of 45 steel.It is several by suitable spacing distribution on chassis 1
Threaded hole 11, wherein 11 quantity of threaded hole and spacing are arranged according to 2 thickness of titanium alloy sheet and intensity, it is ensured that stainless steel between two holes
Sunk screw 3 can stablize fixed titanium alloy sheet.
Screw specification selection: the lowest pull load of screw is according to the 80% of GB/T3098.1 specified value selection, common M6
Sunk screw lowest pull load can carry about 258MPa according to the calculating of screw countersunk head contact area and compress by force up to 12900N
Degree meets the fixed requirement of titanium alloy sheet for being less than 10mm thickness.
The selection of screw thread hole number: since strip template workpiece is in grinding process, screw is primarily subjected to workpiece transmitting
Tangential grinding force (tangential grinding force Ft mainly with grinding speed vs, workpiece movement speed vwIt is related), consolidated according to workpiece by screw
Fixed, stress balance condition, wherein, N is the quantity of stainless steel sunk screw 3 to tangential grinding force Ft=τ × N, and Ft is titanium alloy sheet 1
Tangential grinding force, τ is that single stainless steel sunk screw 3 most receives greatly to shear.Titanium alloy sheet 2 is between 20 DEG C to 400 DEG C
Thermal expansion coefficient is about 10x10-6/ DEG C, according to following metal material expanded by heating formula:
Δ L=L × (1+ α × Δ T) (1)
In formula: L is titanium alloy sheet length dimension (mm);Δ L is titanium alloy sheet because of the raised elongation of temperature in grinding process
It measures (mm);α is the thermal expansion coefficient (10x10 of material when temperature in grinding process-6/℃);Δ T=T-T0, T is grinding process
Middle temperature (DEG C), T0For room temperature (DEG C).
By above formula it is found that 2 expanded by heating amount of titanium alloy sheet can in the state of fixed using stainless steel sunk screw 3
To ignore, therefore, it is as long as the quantity of stainless steel sunk screw 3 is greater than tangential grinding force divided by single screw carrying shear force value
Can, stainless steel sunk screw 3 can be evenly arranged on technique edges.
Therefore, the quantity of threaded hole 11 is equal to the quantity of screw 3, meets following formula:
The present invention also provides a kind of aspects to grind processing method than titanium alloy sheet, includes the following steps:
Step 1: clamping process side being reserved into 2 two sides of titanium alloy sheet to be processed, is existed according to the thickness of titanium alloy sheet 2 and intensity
It opens up multiple through-holes on technique edges, and processes at through-hole both ends for avoiding screw countersunk head chamfering outstanding after clamping, formed
Two sides countersunk head through-hole 21, multiple 21 equidistantly distributeds of two sides countersunk head through-hole are on the technique edges of every side;
Step 2: the technique edges size reserved by titanium alloy sheet 2 to be processed, selecting has the 45 of magnetic conductivity and preferable intensity
Steel material design mill processing magnetic conductivity carbon steel chassis 1, the distributing position for the two sides countersunk head through-hole 21 reserved by titanium alloy sheet 2 are being led
Screw hole 11 is opened up in the two sides long side of magnetic carbon steel bottom plate 1,11 position of screw hole is corresponding with two sides countersunk head through-hole 21,
Choose the stainless steel sunk screw 3 that length is greater than titanium alloy sheet thickness 10mm;
Step 3: before mill machining titanium alloy plate plane, magnetic conductivity carbon steel chassis 1 being placed on grinding machine workbench, makes a call to hundred
Divide table look-up magnetic conductivity carbon steel chassis plane degree, when being unsatisfactory for mill machining titanium alloy plate planar technique condition, mill processing chassis
Plane to flatness meets the fixed requirement of titanium alloy sheet assembly;
Step 4: titanium alloy sheet 2 being placed on magnetic conductivity carbon steel chassis 1 as shown in Figure 5 and Figure 6, passes through sunk screw 3
Titanium alloy sheet is fastened on magnetic conductivity carbon steel chassis;
Step 5: clamping magnetic conductivity carbon steel chassis 1 and titanium alloy sheet 2 being placed on Grinder bench together, energization magnetic
Fixed magnetic conductivity carbon steel chassis 1 is adsorbed, grinds machining titanium alloy plate plane by titanium alloy sheet processing request, meets after technique requires and tears open
It unloads titanium alloy sheet 2 and repeats step 4, mill processes another plane;
Step 6: technique edges being removed using wire cutting or machining process in assembly.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of aspect grinds fixer for machining than titanium alloy sheet, which is characterized in that the fixed device includes leading for rectangle
Magnetic carbon steel bottom plate and multiple stainless steel sunk screws;Clamping process side is reserved into titanium alloy sheet two sides, and according to titanium alloy sheet
Thickness and intensity open up multiple two sides countersunk head through-holes on technique edges;Work of multiple two sides countersunk head through-hole equidistantly distributeds in every side
On skill side, multiple threaded holes are opened up in the two sides long side on magnetic conductivity carbon steel chassis and two sides countersunk head through-hole corresponding position;Pass through
Titanium alloy sheet is fixed on magnetic conductivity carbon steel chassis by stainless steel sunk screw, and then passes through magnetic conductivity carbon steel chassis for titanium alloy
Plate is fixed on grinding machine and carries out grinding;
The quantity of threaded hole meets following formula:
Wherein, N is the quantity of threaded hole, and Ft is the tangential grinding force of titanium alloy sheet, and τ is the maximum of single stainless steel sunk screw
It is sheared.
2. aspect as described in claim 1 grinds fixer for machining than titanium alloy sheet, which is characterized in that the magnetic conductivity carbon
Steel bottom plate is made of 45 steel.
3. a kind of aspect grinds processing method than titanium alloy sheet, which comprises the steps of:
Step 1: clamping process side being reserved into titanium alloy sheet two sides to be processed, according to the thickness of titanium alloy sheet and intensity in technique edges
On open up multiple through-holes, and process at through-hole both ends for avoiding screw countersunk head chamfering outstanding after clamping, it is heavy to form two sides
Head through-hole, multiple two sides countersunk head through-hole equidistantly distributeds are on the technique edges of every side;
Step 2: the technique edges size reserved by titanium alloy sheet to be processed selects 45 Steel materials with magnetic conductivity and preferable intensity
Design mill processing magnetic conductivity carbon steel chassis, the distributing position for the two sides countersunk head through-hole reserved by titanium alloy sheet is at magnetic conductivity carbon steel bottom
Threaded hole is opened up in the two sides long side of disk, threaded hole position is corresponding with two sides countersunk head through-hole, chooses length and closes greater than titanium
The stainless steel sunk screw of golden plate thickness 10mm;
Step 3: before mill machining titanium alloy plate plane, magnetic conductivity carbon steel chassis being placed on grinding machine workbench, dial gauge is played
Check magnetic conductivity carbon steel chassis plane degree, when being unsatisfactory for mill machining titanium alloy plate planar technique condition, mill processing chassis plane
Meet the fixed requirement of titanium alloy sheet assembly to flatness;
Step 4: titanium alloy sheet being placed on magnetic conductivity carbon steel chassis, titanium alloy sheet is fastened on by magnetic conductivity by sunk screw
On carbon steel chassis;
Step 5: clamping magnetic conductivity carbon steel chassis and titanium alloy sheet being placed on Grinder bench together, energization magnetic suck is solid
Determine chassis, grind machining titanium alloy plate plane by titanium alloy sheet processing request, meets titanium alloy sheet under dismantling after technique requires and lay equal stress on
Multiple step 4, mill process another plane;
Step 6: technique edges being removed using wire cutting or machining process in assembly.
Priority Applications (1)
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CN201811396588.1A CN109500675A (en) | 2018-11-22 | 2018-11-22 | A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet |
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CN201811396588.1A CN109500675A (en) | 2018-11-22 | 2018-11-22 | A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet |
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CN109500675A true CN109500675A (en) | 2019-03-22 |
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CN201811396588.1A Pending CN109500675A (en) | 2018-11-22 | 2018-11-22 | A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet |
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CN106869369A (en) * | 2017-03-31 | 2017-06-20 | 何敏娟 | A kind of connection method of the steel wood mixing shear wall of the adjustable position of use high-strength bolt and slotted hole |
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CN104097033A (en) * | 2014-06-30 | 2014-10-15 | 什邡市明日宇航工业股份有限公司 | Manufacturing process for integral irregular welding box section of advanced training machine |
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Application publication date: 20190322 |
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