CN103715836A - Temperature-cooling composite plastic molding process of engineering machinery oil-pump stator blank - Google Patents
Temperature-cooling composite plastic molding process of engineering machinery oil-pump stator blank Download PDFInfo
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- CN103715836A CN103715836A CN201210373702.5A CN201210373702A CN103715836A CN 103715836 A CN103715836 A CN 103715836A CN 201210373702 A CN201210373702 A CN 201210373702A CN 103715836 A CN103715836 A CN 103715836A
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Abstract
The invention discloses a temperature-cooling composite plastic molding process of an engineering machinery oil-pump stator blank. The process includes the following steps: 1. warm-forging plastic molding; 2. annealing, shot blasting and pre-processing; 3. cold extrusion finishing molding; 4. machining an excircle through bottom removing and length cutting. Products manufactured in the process are stable in quality, high in rate of finished products, short in production period and high in production efficiency. A manufacturing method of adopting a machine tool for machining after hot forging is substituted so that work load of machining of the machine tool is reduced and raw materials are saved. Therefore, not only are precision demands met, manufacturing cost and period are also reduced and at the same time, the process also complies with the development trend of the current world manufacturing industry.
Description
Technical field
The present invention relates to engineering machinery oil pump stator, relate in particular to the cold compound plastic forming technique of a kind of engineering machinery oil pump stator blank temperature.
Background technology
Steering pump stator is the strength member of drive system.Because the interior shape of steering pump stator is complicated, part Thickness Distribution is uneven, and law of metal flow is difficult to grasp, complex procedures in manufacture process, and difficulty of processing is large.China Intellectual Property Office discloses CN200720023996.3 stator housing of screw oil pump, comprise housing, in described housing, have for assembling the cavity of rotor, the inner surface of described cavity is helicoid, is lined with the helical form rubber layer of even thickness on described helicoid.China Intellectual Property Office also discloses CN201020170202.8 novel brushless motor fuel pump stator, comprise that coil assembly, terminal adapter and envelope mould, iron core and winding that coil assembly is overrided to form by silicon steel sheet form, and described stator utilizes the some water conservancy diversion runners of the moulding one-tenth of the envelope on silicon steel sheet surface.Adopt machine-tooled method to produce and have advantages of that precision is high, but its production cycle is long, manufacturing cost is high.Manufacturing firm all adopts inner chamber finish forge molded blank technology both at home and abroad at present, can meet required precision like this, has reduced again manufacturing cost and cycle, also meets the trend of world today's development of manufacturing simultaneously
Summary of the invention
The present invention is directed to the deficiencies in the prior art, mainly solve existing conventional machining process, machine tool drops into more, cut has been wasted metal material, interior shape complicated processing accumulated error is large, rate of finished products is low, the low production cycle of labor productivity is long, the technical problem that processing cost is high, provides a kind of engineering machinery oil pump stator blank temperature cold compound plastic forming technique.
The present invention is achieved by the following technical solution:
The cold compound plastic forming technique of engineering machinery oil pump stator blank temperature, comprises the following steps:
1. warm forging plastic forming: solid cylindrical metal stock is heated to forging temperature, and die forging goes out to assemble the hollow circle tube blank of rotor cavity, and the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face;
2. annealing, ball blast, pre-treatment;
3. coldly push finishing moulding: in finishing mold, the inner chamber of blank after pre-treatment and outer wall are carried out to cold-finish;
4. go to the end to get long vehicle cylindrical: the bottom of hollow circle tube blank after removal cold-finish, form hollow cylindrical blank, according to product size, require intercepting hollow cylindrical blank to form stator blank body, finally turning is modified outer wall.
Described warm forging moulding process comprises a, fracture: circular saw intercepting metal bar; B, base ball blast: to metal bar sizing scale, turning, end face chamfering, ball blast: blank is put into shot-blasting machine and carry out surface sand-blasting; C, coating: above-mentioned metal bar is heated to 180-220 ℃, and rare graphite soaks, and carries out face coat; D, jumping-up: by the good blank of above-mentioned coating, be heated to 850-950 ℃ and put into die, the upper surface of blank is pushed, make bar become large diameter cylinder; E, backward extrusion: the blank after jumping-up is put into back extrusion concave immediately, to the upper surface of blank is counter, squeeze, form the hollow circle tube blank that upper end is provided with assembling rotor cavity, the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face.
Described cold pushing after finishing forming step, also further anneals, pre-treatment and again coldly push finishing moulding.
Beneficial effect of the present invention: finished product rate that the present invention produces is high, steady quality, with short production cycle, production effect is high, after having substituted forge hot, adopt in a large number machine toolings, reduced the workload of machine tooling, raw material have been saved, reduce production cost, met the manufacturing development trend in the world today.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of embodiment of the present invention plastic extruding deformation process.
Sequence number in figure: 1, stator blank body, 2, assembling rotor cavity, 3, arcwall face.
Embodiment
Below by embodiment, and in conjunction with Fig. 1, Fig. 2 and Fig. 3, technical scheme of the present invention is described in further detail.
Shown in Fig. 1, Fig. 2, a kind of engineering machinery oil pump stator blank fine forge piece, comprise stator blank body 1, described stator blank body 1 is hollow cylindrical structure, the inner wall even distribution of described stator blank body 1 has 7 discontinuous arcwall faces 3, and the hollow structure of described stator blank body 1 is the cavity 2 of assembling rotor.
Its warm cold compound plastic forming technique, comprise the following steps: 1. warm forging plastic forming: solid cylindrical metal stock is heated to forging temperature, die forging goes out to assemble the hollow circle tube blank of rotor cavity 2, and the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face 3; Described warm forging moulding process comprises a, fracture: circular saw intercepting metal bar; B, base ball blast: to metal bar sizing scale, turning, end face chamfering, ball blast: blank is put into shot-blasting machine and carry out surface sand-blasting; C, coating: above-mentioned metal bar is heated to 180-220 ℃, and rare graphite soaks, and carries out face coat; D, jumping-up: by the good blank of above-mentioned coating, be heated to 850-950 ℃ and put into die, the upper surface of blank is pushed, make bar become large diameter cylinder; E, backward extrusion: the blank after jumping-up is put into back extrusion concave immediately, to the upper surface of blank is counter, squeeze, form the hollow circle tube blank that upper end is provided with assembling rotor cavity 2, the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face 3;
2. heat up two and one-half-hours to 680 ℃, be incubated three hours process annealings, ball blast, phosphatization, saponification are processed;
3. coldly push finishing moulding: in finishing mold, the inner chamber of blank after pre-treatment and outer wall are carried out to cold-finish;
4. further anneal, pre-treatment and again coldly push finishing moulding;
5. go to the end to get long vehicle cylindrical: the bottom of hollow circle tube blank after removal cold-finish, form hollow cylindrical blank, according to product size, require intercepting hollow cylindrical blank to form stator blank body 1, finally turning is modified outer wall.
Adopt the cold compound finish forge plastic forming technology of above-mentioned temperature; constant product quality; rate of finished products is high, intensity is large, density is high, shock resistance; production effect improves, and the production cycle shortens, and has saved raw material; reduce production cost, also protected production environment; substitute the traditional diamond-making technique that adopts machine tooling after forge hot, reduced the workload of machine tooling, met the manufacturing development trend in the world today.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not form limiting the scope of the invention; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present invention, above scheme being done that does not depart from technical solution of the present invention, within all still belonging to protection range of the present invention.
Claims (3)
1. the cold compound plastic forming technique of engineering machinery oil pump stator blank temperature, comprises the following steps:
1. warm forging plastic forming: solid cylindrical metal stock is heated to forging temperature, and die forging goes out to assemble rotor cavity hollow circle tube blank (2), and (3) the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face;
2. annealing, ball blast, pre-treatment;
3. coldly push finishing moulding: in finishing mold, the inner chamber of blank after pre-treatment and outer wall are carried out to cold-finish;
4. go to the end to get long vehicle cylindrical: the bottom of hollow circle tube blank after removal cold-finish, form hollow cylindrical blank, according to product size, require intercepting hollow cylindrical blank to form stator blank body (1), finally turning is modified outer wall.
2. the cold compound plastic forming technique of engineering machinery oil pump stator blank temperature according to claim 1, is characterized in that: described warm forging moulding process comprises a, fracture: circular saw intercepting metal bar; B, base ball blast: to metal bar sizing scale, turning, end face chamfering, ball blast: blank is put into shot-blasting machine and carry out surface sand-blasting; C, coating: above-mentioned metal bar is heated to 180-220 ℃, and rare graphite soaks, and carries out face coat; D, jumping-up: by the good blank of above-mentioned coating, be heated to 850-950 ℃ and put into die, the upper surface of blank is pushed, make bar become large diameter cylinder; E, backward extrusion: the blank after jumping-up is put into back extrusion concave immediately, to the upper surface of blank is counter, squeeze, form upper end and be provided with assembling rotor cavity hollow circle tube blank (2), (3) the inner wall even distribution of described hollow circle tube blank has discontinuous arcwall face.
3. the cold compound plastic forming technique of engineering machinery oil pump stator blank temperature according to claim 1 and 2, is characterized in that: described cold pushing after finishing forming step, also further anneal, pre-treatment and again coldly push finishing moulding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373702.5A CN103715836A (en) | 2012-10-01 | 2012-10-01 | Temperature-cooling composite plastic molding process of engineering machinery oil-pump stator blank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210373702.5A CN103715836A (en) | 2012-10-01 | 2012-10-01 | Temperature-cooling composite plastic molding process of engineering machinery oil-pump stator blank |
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| CN103715836A true CN103715836A (en) | 2014-04-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903774A (en) * | 2016-04-27 | 2016-08-31 | 江苏威鹰机械有限公司 | Method for eliminating cylinder bottom sunken portion of warm-cold-formed inner cavity of thin-walled cylindrical piece |
| CN113941678A (en) * | 2020-07-15 | 2022-01-18 | 安徽弈华重工科技股份有限公司 | Forging process for warm forging and cold extrusion and die thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011852A (en) * | 2009-09-05 | 2011-04-13 | 江苏威鹰机械有限公司 | Method for processing transmission gear ring |
| CN102248101A (en) * | 2011-06-15 | 2011-11-23 | 江苏创一精锻有限公司 | Whole forging near net forming process for inner ball cage sliding sleeve |
| US20110302768A1 (en) * | 2010-06-10 | 2011-12-15 | White (China) Drive Products, Co., Ltd | Processing method of stators |
-
2012
- 2012-10-01 CN CN201210373702.5A patent/CN103715836A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011852A (en) * | 2009-09-05 | 2011-04-13 | 江苏威鹰机械有限公司 | Method for processing transmission gear ring |
| US20110302768A1 (en) * | 2010-06-10 | 2011-12-15 | White (China) Drive Products, Co., Ltd | Processing method of stators |
| CN102248101A (en) * | 2011-06-15 | 2011-11-23 | 江苏创一精锻有限公司 | Whole forging near net forming process for inner ball cage sliding sleeve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903774A (en) * | 2016-04-27 | 2016-08-31 | 江苏威鹰机械有限公司 | Method for eliminating cylinder bottom sunken portion of warm-cold-formed inner cavity of thin-walled cylindrical piece |
| CN113941678A (en) * | 2020-07-15 | 2022-01-18 | 安徽弈华重工科技股份有限公司 | Forging process for warm forging and cold extrusion and die thereof |
| CN113941678B (en) * | 2020-07-15 | 2023-09-12 | 安徽弈华重工科技股份有限公司 | Forging process for hub sleeve warm forging and cold extrusion and die thereof |
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Application publication date: 20140409 |