CN104476120A - Forming technical method of square through plate with wedge-shaped through hole - Google Patents
Forming technical method of square through plate with wedge-shaped through hole Download PDFInfo
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- CN104476120A CN104476120A CN201410619631.1A CN201410619631A CN104476120A CN 104476120 A CN104476120 A CN 104476120A CN 201410619631 A CN201410619631 A CN 201410619631A CN 104476120 A CN104476120 A CN 104476120A
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- hole
- seamless pipe
- wedge shape
- forging
- square tube
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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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- Mechanical Engineering (AREA)
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Abstract
The invention provides a forming technical method of a square through plate with a wedge-shaped through hole. The method comprises the steps of preparing seamless pipe blanks which are as long as the square through plate, then heating, forging and flattening, forging into a hole, pickling, finishing and processing the appearance; the forging and flattening are namely that the heated seamless pipe blanks are transferred to a hot die forging press and are coaxially and centered in the axial and pressure directions, and then the stainless steel pipe blanks are forged and flattened to reach a set height; the forging into the hole is namely that the forged and flattened seamless steel pipe blanks are overturned to be vertical in 90 degrees, a wedge-shaped inner cavity primary forming mode is inserted into a flat hole of each forged and flattened seamless pipe blank, then the die is pressed into the flat hole until reaching the set height through a press, the wedge-shaped inner cavity primary forming die is removed, and the seamless pipe blanks in the hole are naturally cooled; the stainless steel pipe blanks in the holes are pickled, finished and subjected to appearance processing to obtain the square through plate, and therefore, the final square through plate with the wedge-shaped through hole can be obtained. The forming technical method is low in cost, high in efficiency, and outstanding in consistency of the inner cavity dimension.
Description
Technical field
The present invention relates to a kind of square tube sheet metal forming process with through hole, mainly a kind of square tube sheet metal forming process with wedge shape through hole.
Background technology
In prior art, the basic technology making the square tube plate of band wedge shape through hole is: 1, round steel is swaged into cuboid, 2, milling cuboid six, 3, bore wire cutting technology hole, 4, on cuboid, etch wedge shape through hole with Linear cut.This technique is long with the linear cutter wedge shape through hole time, causes workpiece in volume production process, appears to employ a large amount of wire cutting machine tool and carry out processing the low situation of still production capacity, and linear cutter cost is high, and inner cavity size uniformity is poor, affects serviceability.
Summary of the invention
The object of the present invention is to provide a kind of moulding technique of square tube plate of band wedge shape through hole newly, this moulding technique is simple, cost is low, efficiency is high, precision is high, inner cavity size uniformity is good, the deficiency that the basic technology solving the square tube plate of existing band wedge shape through hole preferably exists.
For solving the problem, the technical solution used in the present invention is: a kind of square tube sheet metal forming process with wedge shape through hole, comprises the following steps:
A, blanking: the seamless pipe selecting certain thickness, diameter according to the wall thickness and wedged hole girth of being with the square tube board finished product of wedge shape through hole, be cutting into seamless pipe blank by the length of the square tube plate of band wedge shape through hole;
B, heating: seamless pipe blank is heated to 1100 ~ 1200 DEG C;
C, fulling: the seamless pipe blank heated is transferred to hotdie forging press, seamless pipe blank is radial to be put with shaft assignment with pressure direction, and seamless pipe blank being swaged into setting height becomes the seamless pipe blank after fulling;
D, forging hole: the seamless pipe blank after fulling is overturn 90 ° and erects, wedge shape inner chamber pre-profiling mould is inserted the flat hole of the seamless pipe blank after fulling, with forcing press, mould is squeezed into flat hole to setting height, exit wedge shape inner chamber pre-profiling mould, the seamless pipe blank after cooling becomes forging hole naturally;
E, pickling: the seamless pipe blank workpiece behind pickling forging hole, wash surface scale off;
F, finishing: the wedged hole coordinating the seamless pipe blank workpiece behind wedge shape inner chamber finishing mold cold-extruded forging hole with OVM 500T forcing press, makes inner cavity size precision, geometric accuracy, surface roughness reach designing requirement, become the square tube plate workpiece of band wedge shape through hole;
G, processing profile: by the square tube plate surface of the work of design size milling band wedge shape through hole, complete square tube sheet metal forming, become the square tube board finished product of band wedge shape through hole.
Its further technical scheme is: described seamless pipe is seamless steel pipe, seamless iron pipe or seamless compo pipe.
Owing to taking above technical scheme, a kind of square tube sheet metal forming process with wedge shape through hole of the present invention compared with prior art, has following characteristics and beneficial effect:
A kind of square tube sheet metal forming technique with wedge shape through hole of the present invention, its wedge shape through hole adopts hot forging to add cold extrusion shaped, compared to the wire cutting technology that prior art adopts, moulding technique cost of the present invention is low, efficiency is high, precision is high, inner cavity size uniformity is good, improve greatly existing technology exist: linear cutter cost is high, inner cavity size uniformity is poor, affects the subject matters such as serviceability.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristic of a kind of square tube sheet metal forming process with wedge shape through hole of the present invention is further described.
Accompanying drawing explanation
Fig. 1: the schematic flow sheet of a kind of square tube sheet metal forming process with wedge shape through hole of the present invention;
Fig. 2-1 ~ Fig. 2-2: the present invention is a kind of with the seamless pipe blank structural representation in the square tube sheet metal forming process of wedge shape through hole:
Fig. 2-1: front view, Fig. 2-2: left view;
Fig. 3-1 ~ Fig. 3-2: the present invention is a kind of with the seamless pipe blank structural representation after fulling in the square tube sheet metal forming process of wedge shape through hole;
Fig. 3-1: front view, Fig. 3-2: left view;
Fig. 4-1 ~ Fig. 4-2: flat hole view squeezed into by a kind of mould with forging hole step in the square tube sheet metal forming process of wedge shape through hole of the present invention:
Fig. 4-1: front view, Fig. 4-2: left view;
Fig. 5-1 ~ Fig. 5-2: the present invention is a kind of moves back mould view with what forge hole step in the square tube sheet metal forming process of wedge shape through hole:
Fig. 5-1: front view, Fig. 5-2: left view;
Fig. 6-1 ~ Fig. 6-2: the square tube board finished product schematic diagram of the band wedge shape through hole that a kind of square tube sheet metal forming technique with wedge shape through hole of the present invention makes;
Fig. 6-1: front view, Fig. 6-2: left view.
In figure:
1a-seamless pipe blank, the seamless pipe blank after 1b-fulling, 1c-forges the seamless pipe blank behind hole, and 1d-is with the square tube board finished product of wedge shape through hole; 11-wedge shape through hole;
2-wedge shape inner chamber pre-profiling mould, 3-forming frock, 41-moves back die craft equipment I, 42-moves back die craft equipment II;
L-is with the length of the square tube plate of wedge shape through hole.
Detailed description of the invention
With a square tube sheet metal forming process for wedge shape through hole, this process comprises the following steps (see Fig. 1):
A, blanking: the seamless pipe selecting certain thickness, diameter according to the wall thickness and wedged hole girth of being with the square tube board finished product of wedge shape through hole, be cutting into seamless pipe blank 1a(see Fig. 2-1 ~ Fig. 2-2 by the length L of the square tube plate of band wedge shape through hole);
B, heating: seamless pipe blank 1a is put into Medium Frequency Induction Heating Furnace and is heated to 1100 ~ 1200 DEG C;
C, fulling: the seamless pipe blank 1a heated is transferred to hotdie forging press, seamless pipe blank is radial to be put with shaft assignment with pressure direction, and seamless pipe blank fulling is become the seamless pipe blank 1b(after fulling see Fig. 3-1 ~ Fig. 3-2 to setting height);
D, forging hole: the seamless pipe blank 1b after fulling is overturn 90 ° and erects, wedge shape inner chamber pre-profiling mould 2 is inserted the flat hole of the seamless pipe blank 1b after fulling, with forcing press, mould is squeezed into flat hole to setting height (see Fig. 4-1 ~ Fig. 4-2), exit wedge shape inner chamber pre-profiling mould (see Fig. 5-1 ~ Fig. 5-2), the seamless pipe blank 1c after cooling becomes forging hole naturally;
E, pickling: the seamless pipe blank 1c workpiece behind pickling forging hole, wash surface scale off;
F, finishing: the wedged hole coordinating the seamless pipe blank 1c workpiece behind wedge shape inner chamber finishing mold cold-extruded forging hole with OVM 500T forcing press, inner cavity size precision, geometric accuracy, surface roughness is made to reach designing requirement, become the square tube plate workpiece (due to wedge shape inner chamber finishing mold and D, to forge wedge shape inner chamber pre-profiling mould 2 shape that hole step uses identical, omits and do not draw in figure) of band wedge shape through hole;
G, processing profile: by the square tube plate surface of the work of design size milling band wedge shape through hole, complete square tube sheet metal forming, become the square tube plate 1d finished product (see Fig. 6-1 ~ Fig. 6-2) of band wedge shape through hole.
In the embodiment of the present invention, described seamless pipe is the metal tube with certain rigidity and toughness, comprises seamless steel pipe, seamless iron pipe or compo pipe; Take seamless steel pipe as the best.
In the embodiment of the present invention, described hotdie forging press adopts J53-630 type friction press; Also can with the hotdie forging press of other corresponding tonnages.
Described stove and accessory seamless pipe blank being heated to 1100 ~ 1200 DEG C is Medium Frequency Induction Heating Furnace, and the one as the embodiment of the present invention converts, and other heating furnace also can be adopted seamless pipe blank heating, but heating effect is good not as Medium Frequency Induction Heating Furnace.
The OVM 500T forcing press that described correction step adopts is applicant our unit home-built equipment, and the one as the embodiment of the present invention converts, and more than 500 tons forcing presses of other models also can be adopted to replace OVM 500T forcing press.
The X52 vertical knee-type milling machine that described G, processing profile step adopt is known.
In the embodiment of the present invention, the frock used has: wedge shape inner chamber pre-profiling mould, wedge shape inner chamber finishing mold, move back die craft equipment, these moulds are all those skilled in the art according to the size of wedge shape through hole wanting machine-shaping, utilize prior art to make, repeat no more herein.
Claims (2)
1. the square tube sheet metal forming process with wedge shape through hole, it is characterized in that, this process comprises the following steps:
A, blanking: the seamless pipe selecting certain thickness, diameter according to the wall thickness and wedged hole girth of being with the square tube board finished product of wedge shape through hole, be cutting into seamless pipe blank by the length of the square tube plate of band wedge shape through hole;
B, heating: seamless pipe blank is heated to 1100 ~ 1200 DEG C;
C, fulling: the seamless pipe blank heated is transferred to hotdie forging press, seamless pipe blank is radial to be put with shaft assignment with pressure direction, becomes the seamless pipe blank after fulling by flat for the forging and stamping of seamless pipe blank to setting height;
D, forging hole: the seamless pipe blank after fulling is overturn 90 ° and erects, wedge shape inner chamber pre-profiling mould is inserted the flat hole of the seamless pipe blank after fulling, with forcing press, mould is squeezed into flat hole to setting height, exit wedge shape inner chamber pre-profiling mould, the seamless pipe blank after cooling becomes forging hole naturally;
E, pickling: the seamless pipe blank workpiece behind pickling forging hole, wash surface scale off;
F, finishing: the wedged hole coordinating the seamless pipe blank workpiece behind wedge shape inner chamber finishing mold cold-extruded forging hole with OVM 500T forcing press, makes inner cavity size precision, geometric accuracy, surface roughness reach designing requirement, become the square tube plate workpiece of band wedge shape through hole;
G, processing profile: by the square tube plate surface of the work of design size milling band wedge shape through hole, complete square tube sheet metal forming, become the square tube board finished product of band wedge shape through hole.
2. a kind of square tube sheet metal forming process with wedge shape through hole according to claim 1, is characterized in that: described seamless pipe is seamless steel pipe, seamless iron pipe or seamless compo pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619631.1A CN104476120B (en) | 2014-11-06 | 2014-11-06 | Forming technical method of square through plate with wedge-shaped through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619631.1A CN104476120B (en) | 2014-11-06 | 2014-11-06 | Forming technical method of square through plate with wedge-shaped through hole |
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| CN104476120A true CN104476120A (en) | 2015-04-01 |
| CN104476120B CN104476120B (en) | 2017-02-01 |
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| CN201410619631.1A Active CN104476120B (en) | 2014-11-06 | 2014-11-06 | Forming technical method of square through plate with wedge-shaped through hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889983A (en) * | 2020-08-05 | 2020-11-06 | 江苏领嘉科技有限公司 | Manufacturing method of clamping and pressing type steel pipe fitting with threads |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60180619A (en) * | 1984-02-28 | 1985-09-14 | Aichi Electric Mfg Co Ltd | Forming device of wound iron-core |
| JPS63199041A (en) * | 1987-02-13 | 1988-08-17 | Sumitomo Metal Ind Ltd | Manufacture of cup-like article having bottom hole |
| CN1081942A (en) * | 1993-07-18 | 1994-02-16 | 丹东汽车工具厂 | Integral bridge casing of drive bridge of automobile making method and mould thereof |
| CN102581051A (en) * | 2011-11-16 | 2012-07-18 | 三门峡合鑫机床有限公司 | Cold extrusion forming method for lute hole of axle housing of automobile drive axle and pressing die forming machine tool |
| CN202498159U (en) * | 2012-01-10 | 2012-10-24 | 东莞市嘉龙皮革机械有限公司 | Thick-walled rectangular tube expanding and position limiting device |
| CN103894476A (en) * | 2014-03-26 | 2014-07-02 | 吉林大学 | Overall thermal expansion manufacturing method for heavy-duty car drive axle housing |
-
2014
- 2014-11-06 CN CN201410619631.1A patent/CN104476120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60180619A (en) * | 1984-02-28 | 1985-09-14 | Aichi Electric Mfg Co Ltd | Forming device of wound iron-core |
| JPS63199041A (en) * | 1987-02-13 | 1988-08-17 | Sumitomo Metal Ind Ltd | Manufacture of cup-like article having bottom hole |
| CN1081942A (en) * | 1993-07-18 | 1994-02-16 | 丹东汽车工具厂 | Integral bridge casing of drive bridge of automobile making method and mould thereof |
| CN102581051A (en) * | 2011-11-16 | 2012-07-18 | 三门峡合鑫机床有限公司 | Cold extrusion forming method for lute hole of axle housing of automobile drive axle and pressing die forming machine tool |
| CN202498159U (en) * | 2012-01-10 | 2012-10-24 | 东莞市嘉龙皮革机械有限公司 | Thick-walled rectangular tube expanding and position limiting device |
| CN103894476A (en) * | 2014-03-26 | 2014-07-02 | 吉林大学 | Overall thermal expansion manufacturing method for heavy-duty car drive axle housing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889983A (en) * | 2020-08-05 | 2020-11-06 | 江苏领嘉科技有限公司 | Manufacturing method of clamping and pressing type steel pipe fitting with threads |
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| CN104476120B (en) | 2017-02-01 |
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