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 PDF

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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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CN
China
Prior art keywords
titanium alloy
alloy sheet
carbon steel
sides
magnetic conductivity
Prior art date
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.)
Pending
Application number
CN201811396588.1A
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Chinese (zh)
Inventor
黄青松
公维勇
杨钊
吴志新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Shenyang Liming Aero Engine Co Ltd
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AECC Shenyang Liming Aero Engine Co Ltd
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 AECC Shenyang Liming Aero Engine Co Ltd filed Critical AECC Shenyang Liming Aero Engine Co Ltd
Priority to CN201811396588.1A priority Critical patent/CN109500675A/en
Publication of CN109500675A publication Critical patent/CN109500675A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/07Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/068Table-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

A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet
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.
CN201811396588.1A 2018-11-22 2018-11-22 A kind of aspect grinds fixer for machining and its processing method than titanium alloy sheet Pending CN109500675A (en)

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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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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433846A (en) * 2011-10-20 2012-05-02 北京交通大学 Corrugated steel sheets for corrugated steel arch bridges and culverts and bridge and culvert installation method utilizing same
CN203438069U (en) * 2013-07-18 2014-02-19 浙江吉利汽车有限公司 Auxiliary fixture for machining of grinding machine
CN103692172A (en) * 2013-12-05 2014-04-02 北京智创联合科技有限公司 Method for manufacturing titanium alloy straightener blade
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
CN204868541U (en) * 2015-08-20 2015-12-16 成都市鸿侠科技有限责任公司 Sheet -metal grinder processing frock
CN105619126A (en) * 2016-01-27 2016-06-01 宁海县大鹏模具塑料有限公司 Convenient transition clamp of magnetic worktable
CN105805254A (en) * 2016-04-14 2016-07-27 北京精密机电控制设备研究所 Guide block for preventing linear displacement blocking of electromechanical actuator
CN206047890U (en) * 2016-08-31 2017-03-29 上海洛克磁业有限公司 A kind of workbench for rotary grinder
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
CN107060144A (en) * 2017-02-10 2017-08-18 华侨大学 A kind of light steel wood mixing keel combined wall and its implementation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433846A (en) * 2011-10-20 2012-05-02 北京交通大学 Corrugated steel sheets for corrugated steel arch bridges and culverts and bridge and culvert installation method utilizing same
CN203438069U (en) * 2013-07-18 2014-02-19 浙江吉利汽车有限公司 Auxiliary fixture for machining of grinding machine
CN103692172A (en) * 2013-12-05 2014-04-02 北京智创联合科技有限公司 Method for manufacturing titanium alloy straightener blade
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
CN204868541U (en) * 2015-08-20 2015-12-16 成都市鸿侠科技有限责任公司 Sheet -metal grinder processing frock
CN105619126A (en) * 2016-01-27 2016-06-01 宁海县大鹏模具塑料有限公司 Convenient transition clamp of magnetic worktable
CN105805254A (en) * 2016-04-14 2016-07-27 北京精密机电控制设备研究所 Guide block for preventing linear displacement blocking of electromechanical actuator
CN206047890U (en) * 2016-08-31 2017-03-29 上海洛克磁业有限公司 A kind of workbench for rotary grinder
CN107060144A (en) * 2017-02-10 2017-08-18 华侨大学 A kind of light steel wood mixing keel combined wall and its implementation
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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* Cited by examiner, † Cited by third party
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Application publication date: 20190322

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