CN105729067A - Machining technology for engine drive sleeves - Google Patents
Machining technology for engine drive sleeves Download PDFInfo
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- CN105729067A CN105729067A CN201610180533.1A CN201610180533A CN105729067A CN 105729067 A CN105729067 A CN 105729067A CN 201610180533 A CN201610180533 A CN 201610180533A CN 105729067 A CN105729067 A CN 105729067A
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- internal splines
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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
Abstract
The invention provides an improved machining technology for engine drive sleeves. The machining technology comprises the steps of blanking, shot blasting, surface coating forming, heating, forward extruding of appearances, reverse extruding of step holes, normalizing, turning, shot blasting, phosphorus saponifying and cold extruding of internal splines for forming two internal splines at a time. The machining technology avoids subsequent cutting processes such as hole drilling and gear broaching and belongs to chip-less machining methods; by adopting the solid forging technology, a lot of metal flow lines are prevented from being cut, and the whole mechanical property is better; two internal splines can be formed simultaneously through the cold extruding technology, and therefore the raw material and the machining time can be saved to a great extent, the manufacturing technology can be simplified, the manufacturing cost can be lowered, and the surfaces of the internal splines are reinforced in the cold forming process of the internal splines. The machining technology has the advantages that the production efficiency is high, the manufacturing cycle of products is short, and the whole competitiveness of the products is improved.
Description
Technical field
The present invention relates to metal machining technical field, particularly to the forging processing technique of a kind of electromotor actuating sleeve.
Background technology
Electromotor actuating sleeve is for the key components and parts in engine driving system, from the design of part figure of the actuating sleeve shown in Fig. 1 it can be seen that this part is with small one and large one two internal splines 10 and 20.Internal spline is the torque transfer member in motor racing, and its manufacturing technology level and product quality directly affect the quality of moment of torsion transmission assembly；Simultaneously electromotor actuating sleeve operationally often withstanding shocks property load and higher operating rate, this just requires that what electromotor actuating sleeve had higher intensity and hardness is provided simultaneously with good toughness, namely possesses outstanding obdurability combination.The defect such as loosen owing to forging can eliminate the as cast condition that metal produces in smelting process, optimize heterogeneous microstructure, simultaneously because save complete metal streamline, the electromotor actuating sleeve combination property that Forging Technology produces therefore is used to be better than the actuating sleeve that same materials'use machining manufactures.Currently for the electromotor actuating sleeve with both sides internal spline as shown in Figure 1, conventional machining process is: blank blanking, ball blast, heating, is just squeezing profile, anti-crowded blind hole, normalizing, ball blast, phospholeum, cold extrusion forming spline 10, boring, Vehicle Processing inner circle, wire pulling method internal spline 20.The shortcoming adopting this existing technique mainly has: owing to adopting traditional wire pulling method technique, it is necessary to through operations such as boring in advance, borings, therefore complex process, processing cost is higher；Machine cut processing belongs to removal material forming method, and stock utilization is low, causes substantial amounts of waste of material.It addition, in existing technique, hole for rough forging, the technique such as turning will cut forging flow lines in large quantities, thus reducing the overall performance of part；Broaching tool in wire pulling method needs custom-made, especially when producing small-bore spline, and the especially easy damage of broaching tool, become to produce manufacturing cost higher.Therefore to improve the overall performance of electromotor actuating sleeve, it is necessary to current technology is adjusted, design a kind of material of can saving and can improve again the technological method for processing of part whole synthesis performance simultaneously.
Summary of the invention
For the problem in existing forging processing technique, the present invention proposes the forging processing technique of a kind of new electromotor actuating sleeve, it can make the internal spline dimensional accuracy of final products be greatly improved, and its surface strength is more excellent with anti-wear performance compared with conventional machining process.
For realizing the purpose of the present invention, the processing technique of a kind of new electromotor actuating sleeve of the present invention comprises the steps:
(1) blanking: be blank to be processed by pole material sawing；
(2) ball blast: use shot-blasting machine by blank surface hacking, form pit；
(3) face coat: graphite liquid good for proportioning is warmed to 150 DEG C-300 DEG C, be placed in one immersion 1-3 minute by the blank through ball blast, dries；
(4) heating: the blank heating of face coat will be completed to 850-1050 DEG C；
(5) just squeeze profile: be placed in positive extruding mold by the blank after heating, just squeeze blank shape；
(6) shoulder hole is instead squeezed: be immediately placed in anti-extruding mold by the blank taking-up after just squeezing, instead
Squeeze shoulder hole；
(7) normalizing: the forging blank after instead squeezing is heated to 750-850 DEG C of insulation 1-2h air cooling of coming out of the stove；
(8) Vehicle Processing: turnery processing blank shape, it is ensured that the concentricity that product is overall；
(9) ball blast: use shot-blasting machine by the blank hacking after Vehicle Processing, form pit；
(10) phospholeum: the blank after ball blast carries out phosphatization respectively, saponification processes；And
(11) cold-extruded internal spline: be placed in finishing mold by the blank after phospholeum, by once-forming two internal splines of cold-extruded.
The processing technique of the electromotor actuating sleeve of the present invention avoids follow-up boring, draws the machining operations such as tooth, belongs to a kind of ELEMENTARY INTRODUCTION TO NON method, and owing to have employed solid forging technique, metal streamline is avoided being cut in a large number, and overall mechanical property is more excellent；Adopting cold-extrusion technology to shape two internal splines simultaneously and upper largely can save raw material and machining period, simplify manufacturing process and reduce manufacturing cost, internal spline cold forming process achieves the strengthening on internal spline surface simultaneously.The production efficiency of the present invention is higher, and the product manufacturing cycle is short, improves the whole competitiveness of product.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, the present invention is aforesaid be will become clear from other purpose, feature and advantage.Wherein:
Fig. 1 show electromotor actuating sleeve fabricated part figure；
Fig. 2 show the forging processing process figure of the electromotor actuating sleeve of the present invention；
Fig. 3 show the design of part forming process schematic diagram adopting the technological process of Fig. 2 to be driven set processing；
Fig. 4 show the trimming punch structural representation in the electromotor actuating sleeve processing technique of the present invention in cold extrusion forming step；
Fig. 4 A is the Section A-A schematic diagram of Fig. 4；
Fig. 4 B is the section B-B schematic diagram of Fig. 4.
Detailed description of the invention
Forging machining process in conjunction with Fig. 2 a kind of new electromotor actuating sleeve that the present invention is described in detail in detail is as follows.
The forming process schematic diagram of the forging actuating sleeve shown in processing process figure and Fig. 3 of the electromotor actuating sleeve of the present invention as shown in Figure 2, the processing technique of the electromotor actuating sleeve of a modification of the present invention comprises the steps: blanking, is blank to be processed ((a) see in Fig. 3) by pole material steel material sawing；Ball blast, is about to circular shot and mixes by proper proportion with Pedicellus et Pericarpium Trapae sand shot, use shot-blasting machine by blank surface hacking, form pit；Face coat, the graphite liquid good by proportioning is warmed to 150 DEG C-300 DEG C, and be placed in one immersion 1-3 minute by the blank through ball blast, dries；Heating, the blank of the face coat that is near completion is placed in intermediate frequency furnace, and heating is to 850-1050 DEG C；Just squeeze profile, be about to the blank after heating and be placed in positive extruding mold, just squeeze blank shape ((b) see in Fig. 3)；Anti-crowded shoulder hole, is about to the taking-up of the blank after just squeezing and is immediately placed in anti-extruding mold, and the anti-shoulder hole that squeezes is driven set inner chamber molding ((c) see in Fig. 3)；Normalizing, is placed in meshbeltfurnace by forging blank, heats to 750-850 DEG C of insulation 1-2h, air cooling of coming out of the stove；Vehicle Processing, namely utilizes turnery processing blank shape, the concentricity overall to ensure product；Ball blast, mixes circle shot by proper proportion with Pedicellus et Pericarpium Trapae sand shot, uses shot-blasting machine by the blank hacking of turnery processing after forging, forms pit；Phospholeum, carries out phosphatization respectively by the blank after ball blast and saponification processes；And cold-extruded internal spline, it is placed in finishing mold by the blank after phospholeum, by once-forming two internal splines ((d) see in Fig. 3) of cold-extruded.
Trimming punch structure in the cold extrusion forming step of described internal spline 10 and 20 is such as shown in Fig. 4,4A and 4B, and wherein, R10 is the big footpath of spline 10, and r10 is the path of spline 10；R20 is the big footpath of spline 20, and r20 is the path of spline 20.Two internal splines of the present invention are cold essence extrusion forming simultaneously, simplifies processing step, it addition, by internal spline cold forming process, it is possible to use hardening effect realizes the strengthening on internal spline surface, and this is that the internal spline of machining is difficult to；Further, since have employed solid forging technique, metal streamline is avoided being cut in a large number, and overall mechanical property is more excellent.
The processing technique of inventive engine actuating sleeve avoids follow-up boring, draws the machining operations such as tooth, belongs to a kind of ELEMENTARY INTRODUCTION TO NON method, and this technique makes whole manufacturing process obtain bigger simplification.Adopt cold-extrusion technology to shape two internal splines simultaneously and upper largely can save raw material and machining period, thus reducing manufacturing cost preferably；Owing to have employed solid forging technique, metal streamline is avoided being cut in a large number, and overall mechanical property is more excellent.Generally speaking, the production efficiency of the present invention is higher, and the product manufacturing cycle is short, and precision is high, and excellent in mechanical performance improves the whole competitiveness of product.
The invention is not limited in described embodiment, namely those skilled in the art discloses in scope in the spirit without departing from the present invention, still can make some and revises or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (1)
1. the processing technique of an electromotor actuating sleeve, it is characterised in that described processing technique comprises the steps:
Blanking: be blank to be processed by pole material sawing；
Ball blast: use shot-blasting machine by blank surface hacking, form pit；
Face coat: graphite liquid good for proportioning is warmed to 150 DEG C-300 DEG C, be placed in one immersion 1-3 minute by the blank through ball blast, dries；
Heating: the blank heating of face coat will be completed to 850-1050 DEG C；
Just squeeze profile: be placed in positive extruding mold by the blank after heating, just squeeze blank shape；
Anti-crowded shoulder hole: the blank taking-up after just squeezing is immediately placed in anti-extruding mold, instead squeezes shoulder hole；
Normalizing: the forging blank after instead squeezing is heated to 750-850 DEG C of insulation 1-2h air cooling of coming out of the stove；
Vehicle Processing: turnery processing blank shape, it is ensured that the concentricity that product is overall；
Ball blast: use shot-blasting machine by the blank hacking after Vehicle Processing, form pit；
Phospholeum: the blank after ball blast carries out phosphatization respectively, saponification processes；And
Cold-extruded internal spline: be placed in finishing mold by the blank after phospholeum, by once-forming two internal splines of cold-extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180533.1A CN105729067A (en) | 2016-03-27 | 2016-03-27 | Machining technology for engine drive sleeves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180533.1A CN105729067A (en) | 2016-03-27 | 2016-03-27 | Machining technology for engine drive sleeves |
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| CN105729067A true CN105729067A (en) | 2016-07-06 |
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| CN201610180533.1A Pending CN105729067A (en) | 2016-03-27 | 2016-03-27 | Machining technology for engine drive sleeves |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425287A (en) * | 2016-07-18 | 2017-02-22 | 江苏海宇机械有限公司 | Machining technology of perforated rotating shaft body part |
| CN106736323A (en) * | 2017-01-23 | 2017-05-31 | 江苏创汽车零部件有限公司 | A kind of warm forging forming technology of output flange axle |
| CN107716839A (en) * | 2017-07-17 | 2018-02-23 | 江苏海宇机械有限公司 | A kind of end face is the processing method of the universal joint fine forge piece of R arcs |
| CN108380688A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold and processing method |
| CN109622863A (en) * | 2018-12-20 | 2019-04-16 | 江苏海宇机械有限公司 | A kind of manufacturing method improving spline forged shaft profile accuracy |
| CN111842777A (en) * | 2020-06-09 | 2020-10-30 | 东风本田汽车零部件有限公司 | Process for improving survival rate of engine cylinder sleeve particles |
| CN114939773A (en) * | 2022-06-07 | 2022-08-26 | 浙江欧迪恩传动科技股份有限公司 | Driving sleeve excircle machining method and internal spline clamp applied to same |
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| JP3795260B2 (en) * | 1999-06-25 | 2006-07-12 | 株式会社ジェイテクト | Modified cylindrical shaft machining method and modified cylindrical shaft |
| CN101306442A (en) * | 2007-05-15 | 2008-11-19 | 张华文 | Process method of tripod ball inner sliding sleeve capable of axially moving and back extrusion concave die |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
| CN104148888A (en) * | 2014-06-30 | 2014-11-19 | 宁波惠山汽配制造有限公司 | Process for cold extrusion forming of one-way device spline sleeve |
| CN104476146A (en) * | 2014-10-30 | 2015-04-01 | 江苏威鹰机械有限公司 | Production process of automotive middle-rear axle transmission meshing sleeve |
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Patent Citations (6)
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| US4869629A (en) * | 1988-07-22 | 1989-09-26 | Textron Inc. | Blind fastener |
| JP3795260B2 (en) * | 1999-06-25 | 2006-07-12 | 株式会社ジェイテクト | Modified cylindrical shaft machining method and modified cylindrical shaft |
| CN101306442A (en) * | 2007-05-15 | 2008-11-19 | 张华文 | Process method of tripod ball inner sliding sleeve capable of axially moving and back extrusion concave die |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425287A (en) * | 2016-07-18 | 2017-02-22 | 江苏海宇机械有限公司 | Machining technology of perforated rotating shaft body part |
| CN106736323A (en) * | 2017-01-23 | 2017-05-31 | 江苏创汽车零部件有限公司 | A kind of warm forging forming technology of output flange axle |
| CN106736323B (en) * | 2017-01-23 | 2018-11-27 | 江苏创一精锻有限公司 | A kind of warm forging forming technology of output flange axis |
| CN107716839A (en) * | 2017-07-17 | 2018-02-23 | 江苏海宇机械有限公司 | A kind of end face is the processing method of the universal joint fine forge piece of R arcs |
| CN108380688A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold and processing method |
| CN109622863A (en) * | 2018-12-20 | 2019-04-16 | 江苏海宇机械有限公司 | A kind of manufacturing method improving spline forged shaft profile accuracy |
| CN109622863B (en) * | 2018-12-20 | 2020-03-27 | 江苏海宇机械有限公司 | Manufacturing method for improving tooth profile precision of spline shaft type forging |
| CN111842777A (en) * | 2020-06-09 | 2020-10-30 | 东风本田汽车零部件有限公司 | Process for improving survival rate of engine cylinder sleeve particles |
| CN114939773A (en) * | 2022-06-07 | 2022-08-26 | 浙江欧迪恩传动科技股份有限公司 | Driving sleeve excircle machining method and internal spline clamp applied to same |
| CN114939773B (en) * | 2022-06-07 | 2024-03-12 | 浙江欧迪恩传动科技股份有限公司 | Outer circle machining method of driving sleeve and internal spline clamp applied to method |
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Application publication date: 20160706 |
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