CN100534661C - Gear wheel precision hot rolling extruding and grinding machine and processing method thereof - Google Patents
Gear wheel precision hot rolling extruding and grinding machine and processing method thereof Download PDFInfo
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- CN100534661C CN100534661C CNB2007101915493A CN200710191549A CN100534661C CN 100534661 C CN100534661 C CN 100534661C CN B2007101915493 A CNB2007101915493 A CN B2007101915493A CN 200710191549 A CN200710191549 A CN 200710191549A CN 100534661 C CN100534661 C CN 100534661C
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- gear hobbing
- hobbing mould
- transmission mechanism
- screw mandrel
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- 238000005098 hot rolling Methods 0.000 title claims description 15
- 238000003672 processing method Methods 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 97
- 238000000034 method Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 42
- 230000001141 propulsive effect Effects 0.000 claims description 27
- 238000007688 edging Methods 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000003028 elevating effect Effects 0.000 claims description 10
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000003801 milling Methods 0.000 abstract 2
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 206010006514 bruxism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
A pinion precision hot rolled squeezing and milling device and a method for processing belong to the field of precision-machined machinery devices and craft technology. The purpose of the invention is to provide the pinion precision hot rolled squeezing and milling device, and the method for processing which are economical, practical and have low inaccuracy and high accuracy and are applicable to be in mass production. The technical points are that a framework is straddled and arranged on the two lateral sides of an oil tank, and a slider controlled by a hydraulic oil tank is arranged on the framework, wherein a first gear hobbing die actuating mechanism, a work-piece handing hold-down mechanism, and a second gear hobbing die actuating mechanism are hung vertically and consecutively from left to right, the two lateral sides of the lower portion are correspondingly arranged with pushing shelves of a first screw mandrel pushing mechanism and a second screw mandrel pushing mechanism which are respectively connected with an upper bearing block and a lower bearing block of the first gear hobbing die actuating mechanism and the second gear hobbing die actuating mechanism. Compared with prior crafts and devices, the invention is a finishing tooth processing device and craft which is more advanced, reasonable and scientific, economical, practical, lowly inaccurate, and further has the advantages of high efficiency and high accuracy, and is adaptable for mass production without cutting.
Description
Technical field
The present invention relates to a kind of gear wheel precision hot rolling extruding and grinding machine and method for processing thereof.
Background technology
Gear is a power transmission part important in the plant equipment, and its application is very extensive.In traditional at home Gear Processing, what extensively adopt is to roll (inserting) tooth-shaving-heat treatment-fine-processing technique.And to obtain high-precision hardened face gear, adopt method for finishing manufactured to have usually: gear honing, roll flute, hard flank of tooth essence are shaved, hard gear gear hobbing etc.
Though gear honing efficient height, good, the nothing burn of surface quality, can eliminate flank of tooth burr and cut that the hard flank of tooth of gear rolls, inserts its surperficial roughness of back and cause because of slightly colliding with, also can correct the local error of teeth directional and profile of tooth to a certain extent, but because the precision of honing wheel is to improve the key of gear honing precision, the manufacturing of high-precision honing wheel and reconditioning are then relatively more difficult, and certain limitation is arranged in application.
Hard flank of tooth gear hobbing is that a kind of carbide hob that adopts carries out hard flank of tooth gear hobbing to revise the method for heat treatment deformation, the raising accuracy of gear.This method have phenomenons such as scraping power is big, vibration, scraper spring sword, and the scraper regrinding error is big in the scraping process.Therefore this method is not suitable for Gear Production in enormous quantities, generally be used for replacing roughly grinding tooth with the grinding allowance that reduces finishing grinding tooth to raise the efficiency.
It is the technology of a comparative maturity that hard flank of tooth essence is shaved.All be used for the preceding soft tooth flank gear fine finishining of heat treatment in the past.Released the hard flank of tooth shaving method that adopts the processing of carbide alloy gear shaver in recent years at home, be mainly used in hardness and be the middle hard gear-face processing about HRC50, adopt single-blade type carbide alloy gear shaver to process the hard flank of tooth, its cutting power roughly is equivalent to the ability that the conventional shaving cutter is processed the soft flank of tooth.But to contact pressure man-hour big adding for gear shaver, for the Gear Processing of tooth face hardness about up to HRC60, can not adopt the shaving method.And gear shaver makes complicatedly, and price is more expensive, preshaving the error of workpiece very big to the influence of shaving precision.
Roll flute is to obtain the most reliable method of high class gear, also is the main manufacturing process that obtains the high accuracy hardened face gear now.But because the gear grinding machines price is expensive, reasons such as manufacturing cost height cause its application in Gear Production to be restricted.
Summary of the invention
The purpose of this invention is to provide a kind of economical and practical, error is little, precision is high, and the gear wheel precision hot rolling extruding and grinding machine of be suitable for producing in enormous quantities; Another object of the present invention provides a kind of gear wheel precision hot rolling extruding and grinding machine that utilizes gear is carried out hot edging method for processing, it can be in the heat treated process of gear, directly add finishing step, under the state that gear is heated, it is carried out hot edging, make it produce pyroplastic deformation, thereby reach the purpose that improves machining accuracy and surface quality.
Its technical scheme is:
A kind of gear wheel precision hot rolling extruding and grinding machine is characterized in that: comprise the first gear hobbing mould transmission mechanism, the second gear hobbing mould transmission mechanism, work-handling hold-down mechanism, elevating mechanism, the first screw mandrel propulsive mechanism, the second screw mandrel propulsive mechanism, fuel tank and temperature control equipment and frame;
The first gear hobbing mould transmission mechanism is connected and composed successively by servomotor, decelerator, electromagnetic clutch, filtration Connection Block, Hooks coupling universal coupling, main shaft, top chock, gear hobbing mould and step from top to bottom;
The second gear hobbing mould transmission mechanism is connected and composed successively by servomotor, decelerator, Hooks coupling universal coupling, main shaft, top chock, gear hobbing mould and step from top to bottom;
The work-handling hold-down mechanism is connected and composed successively by cylinder or hydraulic cylinder, mandrel axis bearing slide block, plug, stripper, workpiece and workpiece spindle bearing from top to bottom;
Elevating mechanism is made of hydraulic cylinder, slide block and slider track;
The first screw mandrel propulsive mechanism and the second screw mandrel propulsive mechanism respectively by servomotor, decelerator, bevel-gear sett, screw mandrel, screw rodb base, feed screw nut, push away frame and the guide rail adjustable plate connects and composes successively;
Frame is crossed on the both sides of fuel tank, and the slide block in the elevating mechanism is installed on the slider track that the frame both sides are provided with, and is connected with the piston rod of hydraulic cylinder on being fixed on frame; Vertically suspend the first gear hobbing mould transmission mechanism, work-handling hold-down mechanism and the second gear hobbing mould transmission mechanism on the slide block from left to right successively in midair, and the gear hobbing mould in the first gear hobbing mould transmission mechanism and the second gear hobbing mould transmission mechanism is symmetrically placed in the both sides of workpiece respectively;
Both sides, slide block bottom correspondence is provided with the first screw mandrel propulsive mechanism and the second screw mandrel propulsive mechanism, the upper and lower arm that pushes away frame in the first screw mandrel propulsive mechanism respectively with the second gear hobbing mould transmission mechanism in top chock and step be connected and fixed; The upper and lower arm that pushes away frame in the second screw mandrel propulsive mechanism respectively with the first gear hobbing mould transmission mechanism in top chock and step be connected and fixed.
A kind of gear wheel precision hot rolling extruding and grinding machine that utilizes carries out hot edging method for processing to gear, it is characterized in that the processing step of its hot edging:
The A workpiece is heated to 900 ℃ makes the flank of tooth organize austenitizing, quick immediately oil quenching, and isothermal keeps;
B. workpiece makes flank of tooth generation plastic deformation, formative gear launching edging with the gear hobbing mould in the oil quenching process fast;
C. workpiece continues edging in the low temperature oil of steady temperature scope, makes gear reach flank of tooth structure property and geometry.
Its technique effect is: gear wheel precision hot rolling extruding and grinding machine of the present invention is because the employing accurate digital control is four-axle linked and the type of drive of each independent speed change, heat treatment and fine finishining, the quenching technical of gear are integrated, therefore, make the high accuracy hardened face gear production process than existing gear honing, roll flute, hard flank of tooth essence shave, equipment such as hard gear gear hobbing, more advanced, rationally and science, be a kind of economical and practical, error is little, it is that produce in enormous quantities to be suitable for, the precision gear process equipment of efficient, high accuracy, nothing cutting.Simultaneously, the present invention utilizes gear wheel precision hot rolling extruding and grinding machine that gear is carried out hot edging method for processing, in the heat treated process of gear, directly add finishing step, under the state that gear is heated, it is carried out hot edging, make it produce pyroplastic deformation, thereby obtain the gear of high accuracy and surface quality, shave with existing gear honing, roll flute, hard flank of tooth essence, processing technology such as hard gear gear hobbing compares, it has simplified technical process greatly, has saved process time, improved labor productivity
Description of drawings
Fig. 1 is the structural representation of gear wheel precision hot rolling extruding and grinding machine of the present invention;
Fig. 2 is a gear hobbing mode structure schematic diagram;
Fig. 3 is the hot edging process of gear figure.
The specific embodiment
As shown in Figure 1, a kind of gear wheel precision hot rolling extruding and grinding machine is made up of the first gear hobbing mould transmission mechanism 1, the second gear hobbing mould transmission mechanism 5, work-handling hold-down mechanism 6, elevating mechanism 4, the first screw mandrel propulsive mechanism 7, the second screw mandrel propulsive mechanism 14, fuel tank 13 and temperature control equipment and frame 2.Frame is crossed on the both sides of fuel tank, and the slide block 42 in the elevating mechanism is installed on the slider track that the frame both sides are provided with, and is connected with the piston rod of hydraulic cylinder 41 on being fixed on frame.Vertically suspend the first gear hobbing mould transmission mechanism, work-handling hold-down mechanism and the second gear hobbing mould transmission mechanism on the slide block from left to right successively in midair.
The first gear hobbing mould transmission mechanism 1 is connected and composed successively by servomotor 111, decelerator 112, electromagnetic clutch 113, filtration Connection Block 114, Hooks coupling universal coupling 115, main shaft 116, top chock 117, gear hobbing mould 118 and step 119 from top to bottom.
The second gear hobbing mould transmission mechanism 5 is connected and composed successively by servomotor, decelerator, Hooks coupling universal coupling, main shaft, top chock, gear hobbing mould and step from top to bottom.
Work-handling hold-down mechanism 6 is connected and composed successively by cylinder or hydraulic cylinder 61, mandrel axis bearing slide block 62, plug 63, stripper 64, workpiece 65, workpiece spindle bearing 66 from top to bottom.Gear hobbing mould in the first gear hobbing mould transmission mechanism and the second gear hobbing mould transmission mechanism is symmetrically placed in the both sides of workpiece.Since gear hobbing mould and workpiece to the edging process in, workpiece will produce axial plastic elongation, burr will appear in its both sides end face, for making surface of the work smooth smooth, the both ends of the surface up and down of gear hobbing mould are provided with position-limited wheel 110 (see figure 2)s, thus make gear roll the process wheel blank can be controlled in axial plastic elongation.
Both sides, slide block bottom correspondence is provided with the first screw mandrel propulsive mechanism 7 and the second screw mandrel propulsive mechanism 14.The first screw mandrel propulsive mechanism 7 by servomotor, decelerator, bevel-gear sett, screw mandrel, screw rodb base, feed screw nut, push away frame and the guide rail adjustable plate connects and composes successively.Servomotor 71 connection reducers 72, decelerator is connected with bevel gear 73, be connected bevel gear 74 and bevel gear 73 engagements on the screw mandrel 76, the other end of screw mandrel passes the screw rodb base 75 that is fixed on guide rail adjustable plate 77 ends, with be fixed on the feed screw nut 78 who pushes away on the frame 79 and be connected, push away on the guide rail that frame is arranged on the guide rail adjustable plate, the upper and lower arm that pushes away frame respectively with the second gear hobbing mould transmission mechanism in top chock and step be connected and fixed.
The structure of the structure of the second screw mandrel propulsive mechanism 14 and the first screw mandrel propulsive mechanism 7 is identical.Its upper and lower arm that pushes away frame respectively with the first gear hobbing mould transmission mechanism 1 in top chock 117 and step 119 be connected and fixed.
Be provided with heater and oil temperature sensor in the fuel tank 13, the medium oil in the fuel tank is by inlet and outlet piping cooler, the magnetic valve outer with being arranged on fuel tank and hold oil sump and oil pump constitutes the loop.When oily temperature in the fuel tank be lower than when returning fixed lowest temperature, heater 3 just begins to heat, when oil temperature sensor 12 shows that oily temperature is higher than desired temperature upper limit, oil pump 8 just begins to extract the oil of lowering the temperature through cooler 11 and injects fuel tank from hold oil sump 9, guarantee edging in the oil of workpiece in the steady temperature scope, thereby also guaranteed the stability of workpiece size precision.
The hot edging processing method of its course of work and gear: see Fig. 3, workpiece is heated rapidly to (different material temperature are had any different) about 900 ℃ in coreless induction furnace, make the flank of tooth organize austenitizing (a-b), take out and be clamped on the work-handling hold-down mechanism 6, hydraulic jack in the elevating mechanism promotes slide block fast and moves down, slide block drives the workpiece on the work-handling hold-down mechanism, enter fuel tank quenching oil temperature rapidly and be cooling (b-c) in the oil about 200 ℃, and isothermal keeps (c-d).In isothermal maintenance process, the second gear hobbing mould transmission mechanism and the work of the first screw mandrel propulsive mechanism 7, the gear hobbing mould of the second gear hobbing mould transmission mechanism is as driving wheel, near and drive workpiece and rotate.The gear hobbing mould of first gear hobbing mould transmission mechanism moving linearly under the effect of the second screw mandrel propulsive mechanism, as the close workpiece of follower, after meshing with workpiece, electromagnetic clutch adhesive in the first gear hobbing mould transmission mechanism begins to drive the gear hobbing mould with identical speed and rotates under the control of servomotor.At this moment, the gear hobbing mould of the gear hobbing mould in the first gear hobbing mould transmission mechanism and the second gear hobbing mould transmission mechanism is simultaneously as driving wheel, not only rotated but also slow feeding extruding engagement workpiece, makes the compressive plane plastic deformation of workpiece.Forward and backward makes profile of tooth both sides working face uniform plastic deformation, formative gear simultaneously.Because workpiece at high temperature has expansion space, along with the continuous decline of temperature, swell increment is also along with reducing, so two gear hobbing moulds in the first and second gear hobbing mould transmission mechanisms also should constantly be adjusted the amount of feeding according to the variation of swell increment when pushing workpiece.When workpiece and gear hobbing mould centre-to-centre spacing reach the required distance of regulation, the first and second screw mandrel propulsive mechanisms stop straight-line feed immediately, and in the low temperature oil of steady temperature scope (c-d), quicken the positive and negative rotation speed of gear hobbing mould of the first and second gear hobbing mould transmission mechanisms, make gear reach high-quality flank of tooth structure property and high accuracy geometry.Then, the first and second gear hobbing mould transmission mechanisms stop operating, and the first and second screw mandrel propulsive mechanisms oppositely withdraw from, and make two gear hobbing moulds break away from workpiece simultaneously, and the hydraulic jack in the elevating mechanism drives the slide block rising and resets.Cylinder in the work-handling hold-down mechanism or hydraulic cylinder also drive plug and the workpiece rising resets, workpiece collision stripper 64 breaks away from plug in the uphill process, takes off workpiece, revise the crimping that is flowing in the tooth top generation in the edging owing to material, just finished the fine finishining of workpiece.
Claims (4)
1, a kind of gear wheel precision hot rolling extruding and grinding machine is characterized in that: comprise the first gear hobbing mould transmission mechanism (1), the second gear hobbing mould transmission mechanism (5), work-handling hold-down mechanism (6), elevating mechanism (4), the first screw mandrel propulsive mechanism (7), the second screw mandrel propulsive mechanism (14), fuel tank (13) and temperature control equipment and frame (2);
The first gear hobbing mould transmission mechanism (1) is connected and composed successively by servomotor, decelerator, electromagnetic clutch, filtration Connection Block, Hooks coupling universal coupling, main shaft, top chock, gear hobbing mould and step from top to bottom;
The second gear hobbing mould transmission mechanism (5) is connected and composed successively by servomotor, decelerator, Hooks coupling universal coupling, main shaft, top chock, gear hobbing mould and step from top to bottom;
Work-handling hold-down mechanism (6) is connected and composed successively by cylinder or hydraulic cylinder, mandrel axis bearing slide block, plug, stripper, workpiece and workpiece spindle bearing from top to bottom;
Elevating mechanism (4) is made of hydraulic cylinder, slide block and slider track;
The first screw mandrel propulsive mechanism (7) and the second screw mandrel propulsive mechanism (14) respectively by servomotor, decelerator, bevel-gear sett, screw mandrel, screw rodb base, feed screw nut, push away frame and the guide rail adjustable plate connects and composes successively;
Frame (2) is crossed on the both sides of fuel tank (13), and the slide block in the elevating mechanism (42) is installed on the slider track that the frame both sides are provided with, and is connected with the piston rod of hydraulic cylinder (41) on being fixed on frame; Vertically suspend the first gear hobbing mould transmission mechanism (1), work-handling hold-down mechanism (6) and the second gear hobbing mould transmission mechanism (5) on the slide block from left to right successively in midair, and the gear hobbing mould in the first gear hobbing mould transmission mechanism and the second gear hobbing mould transmission mechanism is symmetrically placed in the both sides of workpiece respectively;
Both sides, slide block bottom correspondence is provided with the first screw mandrel propulsive mechanism (7) and the second screw mandrel propulsive mechanism (14), the upper and lower arm that pushes away frame in the first screw mandrel propulsive mechanism respectively with the second gear hobbing mould transmission mechanism (5) in top chock and step be connected and fixed; The upper and lower arm that pushes away frame in the second screw mandrel propulsive mechanism respectively with the first gear hobbing mould transmission mechanism (1) in top chock (117) and step (119) be connected and fixed.
2, a kind of gear wheel precision hot rolling extruding and grinding machine according to claim 1 is characterized in that: the both ends of the surface up and down of the gear hobbing mould in the described first gear hobbing mould transmission mechanism (1) and the second gear hobbing mould transmission mechanism (5) are provided with position-limited wheel (110).
3, a kind of gear wheel precision hot rolling extruding and grinding machine according to claim 1, it is characterized in that: be provided with heater (3) and oil temperature sensor (12) in the described fuel tank (13), the medium oil in the fuel tank is by inlet and outlet piping cooler, the magnetic valve outer with being successively set on fuel tank and hold oil sump and oil pump constitutes the loop.
4, a kind of gear wheel precision hot rolling extruding and grinding machine that utilizes carries out hot edging method for processing to gear, it is characterized in that the processing step of its hot edging:
The A workpiece is heated to 900 ℃ makes the flank of tooth organize austenitizing, quick immediately oil quenching, and isothermal keeps;
B. workpiece makes flank of tooth generation plastic deformation, formative gear launching edging with the gear hobbing mould in the oil quenching process fast;
C. workpiece continues edging in the low temperature oil of steady temperature scope, makes gear reach flank of tooth structure property and geometry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101915493A CN100534661C (en) | 2007-12-10 | 2007-12-10 | Gear wheel precision hot rolling extruding and grinding machine and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101915493A CN100534661C (en) | 2007-12-10 | 2007-12-10 | Gear wheel precision hot rolling extruding and grinding machine and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101168183A CN101168183A (en) | 2008-04-30 |
| CN100534661C true CN100534661C (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101915493A Active CN100534661C (en) | 2007-12-10 | 2007-12-10 | Gear wheel precision hot rolling extruding and grinding machine and processing method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323005B (en) * | 2008-07-04 | 2012-09-26 | 安徽省小小科技实业有限责任公司 | Accurate thermoforming rubbing-grinding machine for processing shaft products |
| CN102319999B (en) * | 2011-06-20 | 2012-12-26 | 安徽省小小科技实业有限责任公司 | Precision hot rolling extrusion milling machine for belt pulley |
| JP6089513B2 (en) * | 2012-08-10 | 2017-03-08 | 株式会社ジェイテクト | Method of quenching annular workpiece and quenching apparatus used therefor |
| CN105618646B (en) * | 2016-01-26 | 2017-11-14 | 重庆大学 | A kind of ultrasonic wave added gear axial direction roll former |
| CN109773280A (en) * | 2018-12-31 | 2019-05-21 | 兴化东华齿轮有限公司 | Improve the Gearmaking Technology of gear grinding efficiency |
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Assignee: Anhui Xiaoxiao Science and Technology Industry Co., Ltd. Assignor: Anhui Jixi Jindu Gear Co., Ltd. Contract record no.: 2010340000083 Denomination of invention: Gear wheel precision hot rolling extruding and grinding machine and processing method thereof Granted publication date: 20090902 License type: Exclusive License Open date: 20080430 Record date: 20100518 |
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Denomination of invention: Gear wheel precision hot rolling extruding and grinding machine and processing method thereof Effective date of registration: 20140416 Granted publication date: 20090902 Pledgee: Jixi Anhui rural commercial bank Limited by Share Ltd Pledgor: Anhui Jixi Jindu Gear Co., Ltd. Registration number: 2014340000002 |
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Denomination of invention: Gear wheel precision hot rolling extruding and grinding machine and processing method thereof Effective date of registration: 20160729 Granted publication date: 20090902 Pledgee: Xiuning Anhui rural commercial bank Limited by Share Ltd Pledgor: ANHUI XIAOXIAO TECH CO., LTD. Registration number: 2016340000039 |
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