CN105690033A - Processing method for thin-wall barrels - Google Patents
Processing method for thin-wall barrels Download PDFInfo
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- CN105690033A CN105690033A CN201610072403.6A CN201610072403A CN105690033A CN 105690033 A CN105690033 A CN 105690033A CN 201610072403 A CN201610072403 A CN 201610072403A CN 105690033 A CN105690033 A CN 105690033A
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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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Abstract
The invention discloses a processing method for thin-wall barrels. The method comprises the steps such as setting-out, blanking, circle-shearing, milling processing, wrapping, welding, welding seam grinding, stretching and forming, explosive forming and the like. The processing method is simple and convenient to operate, a plurality of thermal-treatment tempering processes are not needed, processing steps are simplified, and time consumption is reduced, so that the processing efficiency is improved; the processed thin-wall barrels are high in dimension consistency and are high in precision, so that the production cost can be reduced; besides, the processing method further has relatively wide applicability, and can be used for processing other similar thin-wall barrels.
Description
Technical field
The present invention relates to machining and manufacturing technology field, the processing method being specifically related to a kind of thin-wall barrel。
Background technology
In field of machining, for the processing of thin-wall barrel, traditional diamond-making technique is mainly by following two: one is to overlap stretching die more, progressively stretch forming, and another kind is that shear spinning shapes。Many set stretching dies progressively draw to stretch to shape and not only to arrange reasonably several tempering heat treatment operation at inter process, to eliminate tensile stress, but prevent tempering from producing oxidation in tempering heat treatment operation again, difficulty is high, and workpiece has certain springback capacity after stretch forming, it is difficult to control the concordance of size, causes that finished product accuracy declines；And shear spinning shapes the special shear spinning equipment of needing, relatively costly operation is also more complicated, and can only the barrier part of spinning simple in construction, substantially cannot process for the barrier part shown in Fig. 1。To sum up, existing two kinds of processing methods to thin-wall barrel, namely many set stretching dies and shear spinning shape the processing request that substantially cannot meet thin-wall workpiece as shown in Figure 1, so being badly in need of the processing technique existing for a kind of solution in conventional processes to realize the processing of this barrier part。
Summary of the invention
In order to solve above-mentioned technical problem, it is desirable to provide the processing method of a kind of thin-wall barrel, to solve the problems such as tradition thin-wall barrel operation existing in the course of processing is many, concordance is poor, precision is relatively low, processing mode is single。
The present invention is achieved by following technical solution:
A kind of processing method of thin-wall barrel, the method comprises the following steps:
(A) setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1-1.5mm is stayed in A face, two, left and right after line；
(B) blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.5-0.8mm；
(C) circle is cut: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；
(D) Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；
(E) circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；
(F) welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；
(G) polishing welding seams: use grinder buffing weld seam, makes the difference in height≤0.1mm of weld seam and parent metal, obtains thin-wall barrel after having polished；
(H) stretch forming: complete the stretch forming to thin-wall barrel stretching in die and stretching convex die；
(I) explosive forming: complete explosive forming by ignition charge bag in blast mould；
(J) inspection warehouse-in: taking out thin-wall barrel after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
(H) stretch forming of described step is particularly as follows: be fixed on the top shoe of hydraulic press by stretching convex die, it is fixed on the workbench of hydraulic press by stretching die, one layer of butter uniformly it is coated with stretching die inner chamber, and thin-wall barrel is put in stretching die, open hydraulic press, the top shoe of hydraulic press drives stretching convex die to move down and be gradually inserted in stretching die, and the interaction of stretching convex die and stretching die can complete the stretch forming of thin-wall barrel。
Described step (I) is divided into following steps:
(i1) blast mould opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity is cleaned up, be then uniformly coated with one layer of butter at die cavity inner surface, then thin-wall barrel be placed in die cavity；
(i2) support higher than its top is set at blast die tip, in the middle part of cantilever tip, is connected with a batten vertically arranged；
(i3) with length: wide: the ratio of height=2:1:0.65 makes the blasting charge, in the blasting charge, electric detonator is completely disposed in explosive, at one layer of waterproof paper of blasting charge appearance bag, then the blasting charge is bundled in batten bottom；
(i4) in thin-wall barrel place a water bag, water bag bottom end closure and top is articulated on support by rope；
(i5) in water bag, water is injected, it is ensured that water logging there is not the blasting charge；
(i6) two wires on electric detonator are connected on respectively the switch ends of 24V DC source；
(i7) removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag completes explosive forming。
In described step (i4), water bag lower end is higher than thin-wall barrel lower end 20-30mm。
In described step (i5), surface waterborne should lower than thin-wall barrel upper end 40-50mm。
The invention has the beneficial effects as follows:
Compared with prior art, the processing method of thin-wall barrel provided by the invention is simple and convenient, without several tempering heat treatment operation, simplify procedure of processing save consuming time and then improve working (machining) efficiency, and the thin-wall barrel dimensional uniformity processed is stablized, precision is high, it is possible to decrease production cost；Additionally, the present invention also has the wider suitability, can be used for the processing of other similar thin-wall barrel。
Accompanying drawing explanation
Fig. 1 is thin-wall barrel structural representation；
Fig. 2 is thin-wall barrel expanded view；
Fig. 3 is stretching die structural representation；
Fig. 4 is explosive forming mould mounting structure schematic diagram；
Fig. 5 is blasting charge schematic diagram；
In figure: 1-stretching convex die, 2-thin-wall barrel, 3-stretches die, 4-batten, 5-rope, 6-support, 7-water bag, and 8-explodes mould, 9-water, the 10-blasting charge, 11-die cavity, 12-electric detonator, 13-explosive。
Detailed description of the invention
Below in conjunction with accompanying drawing 1-5 and embodiment, technical scheme is described further, but described in required protection domain is not limited to；
When need to process thin-wall barrel 2 as shown in Figure 1, following embodiment illustrate:
Embodiment 1:
Setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1.5mm is stayed in A face, two, left and right after line；Blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.8mm；Cut circle: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；Circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；Welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；Polishing welding seams: use grinder buffing weld seam, the difference in height making weld seam and parent metal is 0.1mm, obtains thin-wall barrel 2 after having polished；Stretch forming: complete the stretch forming to thin-wall barrel 2 stretching in die 3 and stretching convex die 1, particularly as follows: stretching convex die 1 is fixed on the top shoe of hydraulic press, it is fixed on the workbench of hydraulic press by stretching die 3, one layer of butter uniformly it is coated with stretching die 3 inner chamber, and thin-wall barrel 2 is put in stretching die 3, open hydraulic press, the top shoe of hydraulic press drives stretching convex die 1 to move down and be gradually inserted in stretching die 3, and the interaction of stretching convex die 1 and stretching die 3 can complete the stretch forming of thin-wall barrel 2；Explosive forming: complete explosive forming by ignition charge bag in blast mould 8, particularly as follows: blast mould 8 opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity 11 is cleaned up, then uniformly it is coated with one layer of butter at die cavity 11 inner surface, then thin-wall barrel 2 is placed in die cavity 11；Arranging the support 6 higher than its top on blast mould 8 top, support 6 top middle portion is connected with a batten 4 vertically arranged；With length: wide: the ratio of height=2:1:0.65 makes the blasting charge 10, in the blasting charge 10, electric detonator 12 is completely disposed in explosive 13, at one layer of waterproof paper of the blasting charge 10 appearance bag, then the blasting charge 10 is bundled in batten 4 bottom；Placing a water bag 7 in thin-wall barrel 2, water bag 7 lower end is higher than thin-wall barrel 2 lower end 20mm, and water bag 7 bottom end closure and top are mounted on the frame 6 by rope 5；Water 9 is injected, it is ensured that water 9 floods the blasting charge 10, and ensures that water 9 upper surface should lower than thin-wall barrel 2 upper end 40mm in water bag 7；Two wires on electric detonator 12 are connected on respectively the switch ends of 24V DC source；Removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag 10 completes explosive forming；Inspection warehouse-in: taking out thin-wall barrel 2 after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
Embodiment 2: setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1mm is stayed in A face, two, left and right after line；Blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.5mm；Cut circle: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；Circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；Welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；Polishing welding seams: use grinder buffing weld seam, the difference in height making weld seam and parent metal is 0.09mm, obtains thin-wall barrel 2 after having polished；Stretch forming: complete the stretch forming to thin-wall barrel 2 stretching in die 3 and stretching convex die 1, particularly as follows: stretching convex die 1 is fixed on the top shoe of hydraulic press, it is fixed on the workbench of hydraulic press by stretching die 3, one layer of butter uniformly it is coated with stretching die 3 inner chamber, and thin-wall barrel 2 is put in stretching die 3, open hydraulic press, the top shoe of hydraulic press drives stretching convex die 1 to move down and be gradually inserted in stretching die 3, and the interaction of stretching convex die 1 and stretching die 3 can complete the stretch forming of thin-wall barrel 2；Explosive forming: complete explosive forming by ignition charge bag in blast mould 8, particularly as follows: blast mould 8 opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity 11 is cleaned up, then uniformly it is coated with one layer of butter at die cavity 11 inner surface, then thin-wall barrel 2 is placed in die cavity 11；Arranging the support 6 higher than its top on blast mould 8 top, support 6 top middle portion is connected with a batten 4 vertically arranged；With length: wide: the ratio of height=2:1:0.65 makes the blasting charge 10, in the blasting charge 10, electric detonator 12 is completely disposed in explosive 13, at one layer of waterproof paper of the blasting charge 10 appearance bag, then the blasting charge 10 is bundled in batten 4 bottom；Placing a water bag 7 in thin-wall barrel 2, water bag 7 lower end is higher than thin-wall barrel 2 lower end 30mm, and water bag 7 bottom end closure and top are mounted on the frame 6 by rope 5；Water 9 is injected, it is ensured that water 9 floods the blasting charge 10, and ensures that water 9 upper surface should lower than thin-wall barrel 2 upper end 50mm in water bag 7；Two wires on electric detonator 12 are connected on respectively the switch ends of 24V DC source；Removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag 10 completes explosive forming；Inspection warehouse-in: taking out thin-wall barrel 2 after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
Embodiment 3: setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1.2mm is stayed in A face, two, left and right after line；Blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.6mm；Cut circle: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；Circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；Welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；Polishing welding seams: use grinder buffing weld seam, the difference in height making weld seam and parent metal is 0.85mm, obtains thin-wall barrel 2 after having polished；Stretch forming: complete the stretch forming to thin-wall barrel 2 stretching in die 3 and stretching convex die 1, particularly as follows: stretching convex die 1 is fixed on the top shoe of hydraulic press, it is fixed on the workbench of hydraulic press by stretching die 3, one layer of butter uniformly it is coated with stretching die 3 inner chamber, and thin-wall barrel 2 is put in stretching die 3, open hydraulic press, the top shoe of hydraulic press drives stretching convex die 1 to move down and be gradually inserted in stretching die 3, and the interaction of stretching convex die 1 and stretching die 3 can complete the stretch forming of thin-wall barrel 2；Explosive forming: complete explosive forming by ignition charge bag in blast mould 8, particularly as follows: blast mould 8 opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity 11 is cleaned up, then uniformly it is coated with one layer of butter at die cavity 11 inner surface, then thin-wall barrel 2 is placed in die cavity 11；Arranging the support 6 higher than its top on blast mould 8 top, support 6 top middle portion is connected with a batten 4 vertically arranged；With length: wide: the ratio of height=2:1:0.65 makes the blasting charge 10, in the blasting charge 10, electric detonator 12 is completely disposed in explosive 13, at one layer of waterproof paper of the blasting charge 10 appearance bag, then the blasting charge 10 is bundled in batten 4 bottom；Placing a water bag 7 in thin-wall barrel 2, water bag 7 lower end is higher than thin-wall barrel 2 lower end 26mm, and water bag 7 bottom end closure and top are mounted on the frame 6 by rope 5；Water 9 is injected, it is ensured that water 9 floods the blasting charge 10, and ensures that water 9 upper surface should lower than thin-wall barrel 2 upper end 47mm in water bag 7；Two wires on electric detonator 12 are connected on respectively the switch ends of 24V DC source；Removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag 10 completes explosive forming；Inspection warehouse-in: taking out thin-wall barrel 2 after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
Embodiment 4: setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1.45mm is stayed in A face, two, left and right after line；Blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.7mm；Cut circle: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；Circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；Welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；Polishing welding seams: use grinder buffing weld seam, the difference in height making weld seam and parent metal is 0.8mm, obtains thin-wall barrel 2 after having polished；Stretch forming: complete the stretch forming to thin-wall barrel 2 stretching in die 3 and stretching convex die 1, particularly as follows: stretching convex die 1 is fixed on the top shoe of hydraulic press, it is fixed on the workbench of hydraulic press by stretching die 3, one layer of butter uniformly it is coated with stretching die 3 inner chamber, and thin-wall barrel 2 is put in stretching die 3, open hydraulic press, the top shoe of hydraulic press drives stretching convex die 1 to move down and be gradually inserted in stretching die 3, and the interaction of stretching convex die 1 and stretching die 3 can complete the stretch forming of thin-wall barrel 2；Explosive forming: complete explosive forming by ignition charge bag in blast mould 8, particularly as follows: blast mould 8 opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity 11 is cleaned up, then uniformly it is coated with one layer of butter at die cavity 11 inner surface, then thin-wall barrel 2 is placed in die cavity 11；Arranging the support 6 higher than its top on blast mould 8 top, support 6 top middle portion is connected with a batten 4 vertically arranged；With length: wide: the ratio of height=2:1:0.65 makes the blasting charge 10, in the blasting charge 10, electric detonator 12 is completely disposed in explosive 13, at one layer of waterproof paper of the blasting charge 10 appearance bag, then the blasting charge 10 is bundled in batten 4 bottom；Placing a water bag 7 in thin-wall barrel 2, water bag 7 lower end is higher than thin-wall barrel 2 lower end 22mm, and water bag 7 bottom end closure and top are mounted on the frame 6 by rope 5；Water 9 is injected, it is ensured that water 9 floods the blasting charge 10, and ensures that water 9 upper surface should lower than thin-wall barrel 2 upper end 46.5mm in water bag 7；Two wires on electric detonator 12 are connected on respectively the switch ends of 24V DC source；Removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag 10 completes explosive forming；Inspection warehouse-in: taking out thin-wall barrel 2 after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
Above-described embodiment is only several preferred embodiments of the present invention, the protection domain being not intended to limit the present invention, all deformation, modification or equivalent replacements made in technical scheme, all should fall into protection scope of the present invention。
Claims (5)
1. the processing method of a thin-wall barrel, it is characterised in that: the method comprises the following steps:
(A) setting-out: press the line of workpiece expanded view on processing sheet material, and the blanking cutting surplus of 1-1.5mm is stayed in A face, two, left and right after line；
(B) blanking: shear two A faces about sheet material on plate shearing machine, stay the Milling Machining surplus of 0.5-0.8mm；
(C) circle is cut: on machine for circle-shearing, cut two circular arc up and down shearing sheet material by workpiece expanded view；
(D) Milling Machining: the surplus in A face, sheet material both sides after justifying is cut in milling；
(E) circle circle: sheet material circle is justified and corrects, it is ensured that two A are in the face of neat；
(F) welding: by two overlapped A faces by the sheet material welding of circle circle, make weld seam complete penetration, and weld seam exceeds surfaces externally and internally parent metal；
(G) polishing welding seams: use grinder buffing weld seam, makes the difference in height≤0.1mm of weld seam and parent metal, obtains thin-wall barrel (2) after having polished；
(H) stretch forming: complete the stretch forming to thin-wall barrel (2) stretching in die (3) and stretching convex die (1)；
(I) explosive forming: complete explosive forming by ignition charge bag in blast mould (8)；
(J) inspection warehouse-in: taking out thin-wall barrel (2) after explosive forming and detect, warehousing after passing is sealed up for safekeeping。
2. the processing method of thin-wall barrel according to claim 1, it is characterized in that: (H) stretch forming of described step is particularly as follows: be fixed on the top shoe of hydraulic press by stretching convex die (1), die (3) will be stretched and be fixed on the workbench of hydraulic press, one layer of butter uniformly it is coated with stretching die (3) inner chamber, and thin-wall barrel (2) is put in stretching die (3), open hydraulic press, the top shoe of hydraulic press drives stretching convex die (1) to move down and be gradually inserted in stretching die (3), the interaction of stretching convex die (1) and stretching die (3) can complete the stretch forming of thin-wall barrel (2)。
3. the processing method of thin-wall barrel according to claim 1, it is characterised in that: described step (I) is divided into following steps:
(i1) blast mould (8) opening upwards is placed on cement flooring, with aero-washing gasoline, die cavity (11) is cleaned up, then uniformly it is coated with one layer of butter at die cavity (11) inner surface, then thin-wall barrel (2) is placed in die cavity (11)；
(i2) arranging the support (6) higher than its top on blast mould (8) top, support (6) top middle portion is connected with a batten (4) vertically arranged；
(i3) with length: wide: the ratio of height=2:1:0.65 makes the blasting charge (10), in the blasting charge (10), electric detonator (12) is completely disposed in explosive (13), at one layer of waterproof paper of the blasting charge (10) appearance bag, then the blasting charge (10) is bundled in batten (4) bottom；
(i4) placing a water bag (7) in thin-wall barrel (2), water bag (7) bottom end closure and top are articulated on support (6) by rope (5)；
(i5) in water bag (7), water (9) is injected, it is ensured that water (9) floods the blasting charge (10)；
(i6) two wires on electric detonator (12) are connected on respectively the switch ends of 24V DC source；
(i7) removing personnel in explosion scene surrounding 50 meters, sound the alarm, power turn-on switch ignition charge bag (10) completes explosive forming。
4. the processing method of thin-wall barrel according to claim 3, it is characterised in that: in described step (i4), water bag (7) lower end is higher than thin-wall barrel (2) lower end 20-30mm。
5. the processing method of thin-wall barrel according to claim 3, it is characterised in that: in described step (i5), water (9) upper surface should lower than thin-wall barrel (2) upper end 40-50mm。
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| CN201610072403.6A CN105690033B (en) | 2016-02-02 | 2016-02-02 | A kind of processing method of thin-wall barrel |
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| CN201610072403.6A CN105690033B (en) | 2016-02-02 | 2016-02-02 | A kind of processing method of thin-wall barrel |
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| CN105690033B CN105690033B (en) | 2017-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605266A (en) * | 2020-12-04 | 2021-04-06 | 成都宏明双新科技股份有限公司 | Mould of blade circle on area material |
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