CN106584150A - Clamp and method for removing coating layer of aluminum alloy sheet - Google Patents
Clamp and method for removing coating layer of aluminum alloy sheet Download PDFInfo
- Publication number
- CN106584150A CN106584150A CN201611110726.6A CN201611110726A CN106584150A CN 106584150 A CN106584150 A CN 106584150A CN 201611110726 A CN201611110726 A CN 201611110726A CN 106584150 A CN106584150 A CN 106584150A
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- CN
- China
- Prior art keywords
- sample
- face
- pad
- alloy sheet
- tabletting
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/066—Bench vices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/13—Surface milling of plates, sheets or strips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a clamp and method for removing a coating layer of an aluminum alloy sheet. The clamp comprises a support, a pressing piece arranged on the front end face of the support and two or more fastening nuts arranged on the pressing piece. The fastening nuts are evenly distributed in the length direction of the pressing piece. A spacer is arranged at the lower end of each fastening nut. The method comprises the following steps that a sample is leveled; the sample to be leveled is selected and is leveled with a wood hammer on a working platform; the sample is clamped; according to the metallography detection coating layer thickness result, in view of the influence of the unlevel factor of the sample, it is determined that the total machining allowance of a single face is 0.10+0.05 mm; the front face is machined; and the back face is machined. By the adoption of the clamp and method, the problem about removal of the coating layer of the aluminum alloy sheet can be solved, and the purposes that the accuracy and reliability of the test result of chemical components are improved and it is guaranteed that the arbitration test method requirement is met are achieved.
Description
Technical field
The invention belongs to machine tooling field, and in particular to a kind of fixture and method of removal aluminium alloy sheet clad.
Background technology
As aluminum alloy outer cover plate and structural panel used in aerospace industry, in order to play protective action, its table
Face allows the presence of certain thickness clad.Clad need to be removed when chemical composition test sampling is carried out.Due to sampling handss
Section is limited, and conventional minimizing technology is that artificial sand paper grinding is removed at present.The method amount of labour is big, inefficiency, and grinding is thick
Degree is uneven, and clad is removed not thoroughly, and the easily embedded sand grains that comes off in sample, affects the accurate of constituent content test result
Property.Ferrous metal is directly passed through magnetic-adsorption on fixture because having magnetic typically when ferrous metal thin slice is processed
, but aluminium alloy is due to no magnetic force, it is impossible to by magnetic-adsorption on fixture, therefore cannot be entered using general fixture
Row Milling Process.
The content of the invention
To solve the above problems, the invention provides a kind of fixture and method for removing aluminium alloy sheet clad,
It can solve the problem that aluminium alloy sheet remove clad problem, reach improve chemical composition test result accuracy and can
By property, it is ensured that meet the purpose that arbitration method of testing is required.
, to solve above-mentioned technical problem, the technical scheme for being adopted is as follows for the present invention：
Technical scheme one：
A kind of fixture for removing aluminium alloy sheet clad, it is characterised in that：Which includes support, is arranged at the support front end face
On tabletting and the plural clamp nut being arranged on the tabletting；The clamp nut is along the tabletting length side
To being uniformly distributed；The clamp nut lower end is provided with pad.
Preferably, the clamp nut quantity is three.
Technical scheme two：
A kind of method for removing aluminium alloy sheet clad, it is characterised in which comprises the steps：
1) sample smoothing：Operation sample is treated in selection, is smoothed on work platformses with wooden mallet.
2) specimen clamping：
Face to be processed is performed into labelling first with marking pen, by the good specimen clamping of labelling between the front end face and tabletting of support,
In the offside of clamp nut, the upper end pad of sample adds thickness uniform first pad, first pad and sample uniform thickness, tightens
Clamp nut, support is installed in the work jaw of milling machine；
3）Coating thickness result is detected according to metallographic, and in view of the impact of sample injustice factor, determines that one side is always processed
Balance of 0.10 ~ 0.15mm.
4) front processing
During Milling Process, the depth of cut follows first big after small principle, and the depth of cut is controlled between 0.05～0.10mm, and cutter turns
Speed control is at 600 revs/min.
5）Reverse side is processed
After front machines, clamp nut is unclamped, sample the face of changing is removed into, then according to step 2）Carry out clamping sample and
Tabletting, installs the second pad of rectangle additional below sample reverse side face to be processed；Second pad and sample front processing capacity phase
Deng.
The present invention has the following technical effect that：
The present invention carries out the process that aluminium alloy sheet removes coating film using milling machine, reaches and improves the accurate of chemical composition test result
Property and reliability, it is ensured that meet arbitration method of testing require purpose.
Setting tabletting is prevented directly fixes sample with clamp nut, causes sample to cause shape as local pressure is excessive
Become, pressure can not only be reduced using tabletting, protect sample, while contact area can be increased, pressed the more part of sample
Firmly, prevent edge from tilting；First pad and sample uniform thickness, make the highly equal of clamp nut both sides, it is ensured that sample lower limb is not
Can tilt, it is ensured that the uniformity and stability in the sample course of processing；Due to front machine again by its in turn after, examination
Sample front cannot be in close contact with fixture front end face, by arranging the second pad, by face leveling to be processed, it is ensured that reverse side clad
It is capable of uniform removal of during processing, without affecting composition test result.
Description of the drawings
Accompanying drawing 1 is schematic structural view of the invention；
Accompanying drawing 2 processes use state figure during front for the present invention；
Accompanying drawing 3 processes use state figure during reverse side for the present invention；
Accompanying drawing 4 is cross section tissue's shape appearance figure before removal clad；
Accompanying drawing 5 is cross section tissue's shape appearance figure after removal clad.
In accompanying drawing：1- supports；2- tablettings；3- clamp nuts；4- pads；The first pads of 5-；The second pads of 6-；7- samples.
Specific embodiment
Technical scheme is further elaborated below in conjunction with accompanying drawing.
A kind of fixture for removing aluminium alloy sheet clad, including support 1, the pressure being arranged on 1 front end face of the support
Piece 2 and three clamp nuts 3 being arranged on the tabletting 2；The clamp nut 3 is uniform along 2 length direction of the tabletting
Distribution；3 lower end of the clamp nut is provided with pad 4.
A kind of method for removing aluminium alloy sheet clad, comprises the steps：
1) sample smoothing：Operation sample 7 is treated in selection, to prevent sample 7 uneven, causes processing capacity uneven, with wooden mallet in work
Make to smooth on platform.
2) specimen clamping：
In order to whether uniform test sample 7 process, face to be processed is performed into labelling first with marking pen, it is to be processed it is complete after, observation examination
7 surface markers situation of sample can determine whether that processing is whether uniform, by labelling good 7 clamping of sample support 1 front end face and tabletting 2
Between, in order to prevent clamp nut 3 from tilting in rundown process, the upper end pad of offside, sample 7 in clamp nut 3 adds thickness
Uniform first pad 5, first pad 5 and 7 uniform thickness of sample, tighten clamp nut 3, make 7 top edge of sample and the first pad
5 lower limb of piece is sheeted 2 compressions, and then support 1 is installed in the work jaw of milling machine, and mounting means is pressed from both sides according to general milling machine
The mode of tool is installed.
3）According to metallographic testing result, 69.15 μm of clad maximum gauge value, it is contemplated that sample 7 is uneven and reality adds
The impact of the factor such as equipment shake during work, is to retain material stock thickness to greatest extent and guarantee that clad can be gone completely
Remove, Jing practical operations and multiple processing experiment, after 7 machined parameters of sample are stable, determine that the total allowance of one side is 0.10 ~ 0.15
Mm.
4) front processing
During Milling Process, the depth of cut follows first big after small principle, and the depth of cut is controlled between 0.05～0.10mm, and cutter turns
Speed control is at 600 revs/min.
5）Reverse side is processed
After front machines, clamp nut 3 is unclamped, sample 7 face of changing is removed into, then according to step 2）Carry out clamping sample
7 and tabletting 2, the second pad of rectangle 6 is installed additional below 7 reverse side of sample face to be processed；Second pad 6 and 7 front of sample
Processing capacity is equal.
Finished sample is carried out taking a detection, testing result such as table 1.
1 different conditions sample thickness test result of table
Above processing method, it is adaptable to which thickness is the normal alclad aluminium alloy sheet of 1.0～1.5mm.
Clad removal effect is detected
Coating thickness is tested with metallographic detection method, sheet material cross section tissue pattern is shown in Fig. 4 before removing clad, wherein three
The thickness of point is respectively d=68.25 μm, d=69.15 μm, d=64.12 μm, removes sheet material cross section tissue shape appearance figure after clad
The visible clad of 5, observation Fig. 4 and Fig. 5 is removed completely.
Clad chemical composition test result contrast test is removed differently.
Chemical analysis sample is taken on aluminium sheet of the same LY16 thickness for 1.5mm, is removed with following distinct methods and is coated
Layer.Method 1 is raw material sheet material（Before clad is removed）, method 2 is that sand paper grinding removes clad, and method 3 is using the present invention
The fixture, removes clad using the processing of physical method milling machine.By taking chemical element Cu in sheet material as an example, test result contrast is shown in
Table 2.
2 distinct methods chemical element Cu test result mass fraction % of table
Interpretation of result：Same sheet material, differently removes clad test result difference larger as shown in Table 2.Method 1 is changed
Learn element Cu test result and exceed GB/T 3190-2008 technical requirements lower limits, be judged to unqualified, this result will be caused
Both sides of supply and demand economic dispute.In the same manner, if sampled by method 1, when test result is close to the marginal value upper limit, material element content
True value can specify beyond the upper limit that it is qualified that now then defective material is judged to, and the impact of this result is recessive, is caused
Consequence it is more serious, potential faults will be buried to product, product failure accident can occur when serious.Method 2 is due to removing bag
Not thoroughly and sand paper comes off the impact of the embedded sample of microparticle, test result extreme difference is big, data dispersion, it is impossible to accurately sentence for coating
Whether location survey test result meets the requirements.When test result is close to the marginal value upper limit, that can even cause sometimes that method 1 brings is tight
Weight consequence.Method 3 is to remove clad by referee method requirement, it is ensured that the accuracy and reliability of test result, can conduct
Arbitration result is performed.
Claims (3)
1. it is a kind of remove aluminium alloy sheet clad fixture, it is characterised in that：Which includes support（1）, be arranged at the support
（1）Tabletting on front end face（2）And it is arranged at the tabletting（2）On plural clamp nut（3）；The fastening spiral shell
It is female（3）Along the tabletting（2）Length direction is uniformly distributed；The clamp nut（3）Lower end is provided with pad（4）.
2. it is according to claim 1 it is a kind of remove aluminium alloy sheet clad fixture, it is characterised in that：The fastening spiral shell
It is female（3）Quantity is three.
3. the method for removing aluminium alloy sheet clad with the fixture described in claim 1, it is characterised in which includes following step
Suddenly：
1) sample smoothing：Operation sample is treated in selection（7）, smoothed on work platformses with wooden mallet；
2) specimen clamping：
Face to be processed is performed into labelling first with marking pen, by the good sample of labelling（7）Clamping is in support（1）Front end face and tabletting
（2）Between, in clamp nut（3）Offside, sample（7）Upper end pad add thickness uniform first pad（5）, first pad
Piece（5）With sample（7）Uniform thickness, tightens clamp nut（3）, by support（1）It is installed in the work jaw of milling machine；
3）Needs are detected according to metallographic, determines that the total allowance of one side is 0.10 ~ 0.15mm；
4) front processing
During Milling Process, the depth of cut follows first big after small principle, and the depth of cut is controlled between 0.05～0.10mm, and cutter turns
Speed control is at 600 revs/min；
5）Reverse side is processed
After front machines, clamp nut is unclamped（3）, by sample（7）The face of changing is removed, then according to step 2）Carry out clamping
Sample（7）And tabletting（2）, in sample（7）Install the second pad of rectangle below reverse side face to be processed additional（6）；Second pad
（6）With sample（7）Front processing capacity is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110726.6A CN106584150A (en) | 2016-12-06 | 2016-12-06 | Clamp and method for removing coating layer of aluminum alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110726.6A CN106584150A (en) | 2016-12-06 | 2016-12-06 | Clamp and method for removing coating layer of aluminum alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106584150A true CN106584150A (en) | 2017-04-26 |
Family
ID=58596115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611110726.6A Pending CN106584150A (en) | 2016-12-06 | 2016-12-06 | Clamp and method for removing coating layer of aluminum alloy sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584150A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406017A (en) * | 2017-08-18 | 2019-03-01 | 深圳先进技术研究院 | Substrate clamp is used in a kind of test of membrane stress |
| CN112834504A (en) * | 2020-12-29 | 2021-05-25 | 石家庄飞机工业有限责任公司 | Method for easily observing precision hole and precision surface coating protection effect of part |
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| JP2007245333A (en) * | 2006-03-13 | 2007-09-27 | F-Tool Internatl Ag | Clamping device for positioning and fixing workpiece |
| CN202278420U (en) * | 2011-10-31 | 2012-06-20 | 赫比(成都)精密塑胶制品有限公司 | Milling fixture for machining superfine groove featured part |
| CN202943455U (en) * | 2012-10-24 | 2013-05-22 | 西安志越机电科技有限公司 | Clamp for milling sheet parts |
| CN202964156U (en) * | 2012-10-25 | 2013-06-05 | 西安志越机电科技有限公司 | Special clamp for drilling of long connecting plate |
| CN203817834U (en) * | 2014-05-05 | 2014-09-10 | 黄雪飞 | Thin plate piece processing clamp |
| CN104439580A (en) * | 2013-09-12 | 2015-03-25 | 西安志越机电科技有限公司 | Plate-shaped workpiece clamping device for linear cutting |
| CN205184328U (en) * | 2015-11-28 | 2016-04-27 | 山西江淮重工有限责任公司 | Take location processing frock of V form right angled triangle sheet metal work piece of boss base |
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2016
- 2016-12-06 CN CN201611110726.6A patent/CN106584150A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245333A (en) * | 2006-03-13 | 2007-09-27 | F-Tool Internatl Ag | Clamping device for positioning and fixing workpiece |
| CN202278420U (en) * | 2011-10-31 | 2012-06-20 | 赫比(成都)精密塑胶制品有限公司 | Milling fixture for machining superfine groove featured part |
| CN202943455U (en) * | 2012-10-24 | 2013-05-22 | 西安志越机电科技有限公司 | Clamp for milling sheet parts |
| CN202964156U (en) * | 2012-10-25 | 2013-06-05 | 西安志越机电科技有限公司 | Special clamp for drilling of long connecting plate |
| CN104439580A (en) * | 2013-09-12 | 2015-03-25 | 西安志越机电科技有限公司 | Plate-shaped workpiece clamping device for linear cutting |
| CN203817834U (en) * | 2014-05-05 | 2014-09-10 | 黄雪飞 | Thin plate piece processing clamp |
| CN205184328U (en) * | 2015-11-28 | 2016-04-27 | 山西江淮重工有限责任公司 | Take location processing frock of V form right angled triangle sheet metal work piece of boss base |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406017A (en) * | 2017-08-18 | 2019-03-01 | 深圳先进技术研究院 | Substrate clamp is used in a kind of test of membrane stress |
| CN112834504A (en) * | 2020-12-29 | 2021-05-25 | 石家庄飞机工业有限责任公司 | Method for easily observing precision hole and precision surface coating protection effect of part |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170426 |