CN104668919B - Process for machining special winding gears for transformers with roll iron cores - Google Patents

Process for machining special winding gears for transformers with roll iron cores Download PDF

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Publication number
CN104668919B
CN104668919B CN201510014978.8A CN201510014978A CN104668919B CN 104668919 B CN104668919 B CN 104668919B CN 201510014978 A CN201510014978 A CN 201510014978A CN 104668919 B CN104668919 B CN 104668919B
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China
Prior art keywords
workpiece
gears
machining
carry
circle
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CN201510014978.8A
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Chinese (zh)
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CN104668919A (en
Inventor
欧伟洪
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广东华力通变压器有限公司
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Priority to CN201510014978.8A priority Critical patent/CN104668919B/en
Publication of CN104668919A publication Critical patent/CN104668919A/en
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Publication of CN104668919B publication Critical patent/CN104668919B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels

Abstract

The invention discloses a process for machining special winding gears for transformers with roll iron cores. The process includes steps of selecting materials; machining outer circles and end surfaces; machining inner circles; drilling holes, tapping threads and milling the holes and grooves; hobbing gears; carrying out high-frequency induction heat treatment on the gears; grinding the gears; linearly cutting the gears; positioning, clamping and machining the gears, and the like. The process for machining the special winding gears for the transformers with the roll iron cores has the advantages that positioning triangles are arranged on workpieces, each workpiece is cut into halves, and accordingly the special winding gears and frameworks of winding machines can be conveniently mounted and conveniently assembled; T-shaped bosses are arranged on the workpieces by means of machining, low-voltage line holes and oblong slotted holes are formed in the workpieces by means of machining, and accordingly winding can be facilitated to a great extent; the integral workpieces are made of number-45 steel, high-frequency induction heat treatment and grinding treatment are combined with each other, accordingly, the hardness, the abrasion resistance and the precision of the integral gears can be guaranteed, and the gears are long in service life.

Description

A kind of special coiling Gearmaking Technology of reel iron core transformer
Technical field
The present invention relates to reel iron core transformer Winder manufacture field, more particularly, to a kind of reel iron core transformer special around Line gear processing technology.
Background technology
How conveniently enterprising in the three dimensional wound core transformer of closing one of Wound iron-core transformer key technology is Row coil winding.Existing three dimensional wound core transformer coil winding technology be install on the stem of three dimensional wound core band around The positioner of line gear, then places cardboard or epoxy fabric swatch on gear edge.
The shortcoming one of this winding method is that during mounting and positioning device, requirement is higher, it is necessary to assure the positioner at two is concentric Degree is very high, and otherwise easily rub iron core in coiling, leads to not complete coiling, the therefore set-up time is longer.Shortcoming two be as When fruit selects cardboard as coiling inner support, also it is susceptible to stem friction during coiling, cannot move back if there is problem during coiling Go back coiling again, whole coil will coiling again.And the easy deliquescing of cardboard in the moister environment in south, lead to tooth Wheel cannot rotate, and also can affect the coiling of coil, or even cause scrapping of whole coil.Therefore the method production efficiency not Height, easily goes wrong in winding process and causes to waste.
Therefore how on the stem of closing, can the coiling of simple and fast have become three dimensional wound core transformer promote One key factor of application, is also the major issue that solution was paid close attention to and urgently improved to transformer industry always!
Content of the invention
It is an object of the invention to provide a kind of reel iron core transformer special coiling Gearmaking Technology being easy to assemble.
For reaching object above, the present invention adopts the following technical scheme that.
A kind of special coiling Gearmaking Technology of reel iron core transformer is it is characterised in that comprise the following steps:
First step sorting, chooses suitable workpiece to be processed, determines the centre of location of workpiece to be processed, then in positioning The heart bores a fixing hole;
Second step processing excircles and end face, on lathe, rough turned piece is cylindrical, then fine turning outer circle, finally to workpiece both sides End face carries out thick and smart car respectively;
Three-step process inner circle, first first heavy boring workpiece inner circle on lathe, removes the excessive surplus of workpiece;Right boring workpiece again Inner circle;
4th step drilling and tapping with and hole milling groove milling, include below four small steps, 1) carry out in the clamp position of workpiece Boring, for card low-voltage line, 2) boring tapping are carried out in position corresponding to the locator card screw of workpiece, 3) oval in workpiece milling Slotted eye, for card high-voltage line, 4) carry out groove milling in the locator card corresponding position of workpiece, so that the positioning sleeve after allowing is entered;
5th step gear hobbing, carries out gear hobbing to foreign round and forms teeth;
6th step High frequency induction hardening, carries out High frequency induction hardening to the flank of tooth, strengthens tooth face hardness and wearability;
Teeth are carried out roll flute process by the 7th step grinding, to eliminate the deformation after heat treatment, and improve the accuracy of gear;
8th step wire cutting, comprises the following steps:1) carry out wire cutting in the skeleton fixed position of workpiece, then three will be positioned Angle is inlayed into, and then spot welding is fixed, and forms orientation triangle;
2) the winding low pressure in workpiece lift one's head and all positions of T word boss at carry out wire cutting, then by T word boss spot welding Fixing, and allow T word boss compression winding low pressure to lift one's head;
3) workpiece there is is T word boss and do not have double wire cutting in T word boss both sides to open;
4) inner circle is cut, form positioning rib.
Further illustrating as such scheme, it also includes locator card procedure of processing, selects one block of suitable blank first Coarse-fine car is carried out to it, makes locator card end face bright and clean;Then the form and dimension needed for wire cutting goes out locator card is so as to can pack into Corresponding vallecular cavity;Finally, locator card is holed, prepare for the cut gear opening two halves of locking.
Further illustrating as such scheme, described workpiece is No. 45 steel.
A kind of reel iron core transformer special coiling Gearmaking Technology that the present invention provides, by setting positioning on workpiece Triangle, and workpiece is cut in half, conveniently realize the special installation around line gear and coil winding machine skeleton, easy to assembly.Meanwhile, lead to Cross processing T word boss, low pressure string holes and oval slotted eye on workpiece, coiling is very convenient.Additionally, a whole set of workpiece adopts No. 45 steel Making, and combine High frequency induction hardening and grinding processes it is ensured that the hardness of whole gear, abrasion resistance and precision, using the longevity Life length.
Brief description
Fig. 1 show the reel iron core transformer coiling Gearmaking Technology flow chart of present invention offer;
Fig. 2 show the special coiling gear structure schematic diagram of machine-shaping;
Fig. 3 show special coiling gear assembling assumption diagram.
Description of reference numerals:
1st, low pressure string holes, 2, location hole, 3, oval slotted eye, 4, orientation triangle, 5, T word boss, 6, positioning rib.
Specific embodiment
More fully understand the essence of the present invention for convenience of those of ordinary skill in the art, below in conjunction with the accompanying drawings to the present invention's Specific embodiment is described in detail.
As shown in Figure 1-Figure 3, a kind of special coiling Gearmaking Technology of reel iron core transformer, comprises the following steps:
The sorting of first step step1, chooses No. 45 steel as workpiece to be processed according to part requirements, first for operation afterwards Prepare.It is then determined that the centre of location is it is ensured that size meets workpiece requirement;Finally in one fixing hole of start drill, it is used for Process fixing during workpiece using afterwards.
Second step step2 processing excircles and end face, on lathe, rough turned piece is cylindrical, removes the excessive surplus of blank.So Fine turning outer circle more afterwards, prepares for gear hobbing afterwards.For reaching purpose of design, also workpiece both sides end face is carried out respectively thick and smart Car.
3rd step step3 processing inner circle, first heavy boring workpiece inner circle on lathe, remove the excessive surplus of workpiece;Right boring again Workpiece inner circle, to reach design accuracy requirement.
4th step step4 drilling and tapping with and hole milling groove milling, include below four small steps, 1) in the clamp position of workpiece Carry out boring low pressure string holes 1, for card low-voltage line, 2) carry out boring location hole 2 and attacking in position corresponding to the locator card screw of workpiece Silk, 3) in the oval slotted eye of workpiece milling 3, for card high-voltage line, 4) carry out groove milling in the locator card corresponding position of workpiece, so that it can be allowed Positioning sleeve afterwards is entered.
5th step step5 gear hobbing, carries out gear hobbing to foreign round and forms teeth.
6th step step6 High frequency induction hardening, carries out High frequency induction hardening to the flank of tooth, strengthens tooth face hardness and resistance to Mill property.
Teeth are carried out roll flute process by the 7th step step7 grinding, to eliminate the deformation after heat treatment, and improve gear essence Degree.
8th step Sep8 wire cutting, including:1) carry out wire cutting at skeleton fixed triangle position, then orientation triangle is inlayed Imbed, then spot welding is fixed, form orientation triangle 4.
2) winding low pressure is lifted one's head and all positions of T word boss 5 at carry out wire cutting, then by the 5 points of solid weldings of T word boss Fixed, and allow T word boss 5 compression to lift one's head.
3) dividing gear has T word boss 5 and does not have double wire cutting in T word boss 5 both sides to open, to allow gear card on coil winding machine Skeleton drives skeleton to rotate.
4) inner circle is carried out with cutting and form positioning rib 6, for sticking the groove of skeleton edges, prevent skeleton from moving left and right.
9th step step9 locating and machining card 7, selects one block of suitable blank to carry out coarse-fine car to it first, makes locator card end Face is bright and clean;Then the form and dimension needed for wire cutting goes out locator card is so as to corresponding vallecular cavity can be packed into;Finally, to locator card Holed, prepared for the cut gear opening two halves of locking.
In other embodiments, before locator card procedure of processing can be moved to the first step or in the first step and the 8th step Between any two steps, it is not limited to the present embodiment.
Above specific embodiment has been described in detail to the essence of the present invention, but can not be come to the present invention's with this Protection domain is limited.It should be evident that under the enlightenment of present invention essence, the art those of ordinary skill also can enter Row is many improve and modify it should be noted that these improve and modify all fall the present invention claims it Interior.

Claims (3)

1. a kind of special coiling Gearmaking Technology of reel iron core transformer is it is characterised in that comprise the following steps:
First step sorting, chooses suitable workpiece to be processed, determines the centre of location of workpiece to be processed, then in start drill One fixing hole;
Second step processing excircles and end face, on lathe, rough turned piece is cylindrical, then fine turning outer circle, finally to workpiece both sides end face Carry out thick and smart car respectively;
Three-step process inner circle, first first heavy boring workpiece inner circle on lathe, removes the excessive surplus of workpiece;Again in right boring workpiece Circle;
4th step drilling and tapping and hole milling groove milling, including following four small steps, 1)Holed in the clamp position of workpiece, For card low-voltage line, 2)Carry out holing and tapping in position corresponding to the locator card screw of workpiece, 3)In the oval slotted eye of workpiece milling, For card high-voltage line, 4)Carry out groove milling in the locator card corresponding position of workpiece, so that the positioning sleeve after allowing is entered;
5th step gear hobbing, carries out gear hobbing to foreign round and forms teeth;
6th step High frequency induction hardening, carries out High frequency induction hardening to the flank of tooth, strengthens tooth face hardness and wearability;
Teeth are carried out roll flute process by the 7th step grinding, to eliminate the deformation after heat treatment, and improve the accuracy of gear;
8th step wire cutting, comprises the following steps:1)Carry out wire cutting in the skeleton fixed position of workpiece, then orientation triangle is inlayed Imbed, then spot welding is fixed, form orientation triangle;
2)Workpiece winding low pressure lift one's head and all positions of T word boss at carry out wire cutting, then by T word boss point solid welding Fixed, and allow T word boss compression winding low pressure to lift one's head;
3)Workpiece there is is T word boss and does not have double wire cutting in T word boss both sides to open;
4)Inner circle is cut, forms positioning rib.
2. a kind of special coiling Gearmaking Technology of reel iron core transformer according to claim 1 is it is characterised in that also wrap Include locator card procedure of processing, select one block of suitable blank to carry out coarse-fine car to it first, make locator card end face bright and clean;Then line is cut Cut out the form and dimension needed for locator card so as to corresponding vallecular cavity can be packed into;Finally, locator card is holed, for locking The cut gear opening two halves is prepared.
3. a kind of special coiling Gearmaking Technology of reel iron core transformer according to claim 1 is it is characterised in that described Workpiece is No. 45 steel.
CN201510014978.8A 2015-01-12 2015-01-12 Process for machining special winding gears for transformers with roll iron cores CN104668919B (en)

Priority Applications (1)

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CN104668919B true CN104668919B (en) 2017-02-22

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CN106735484B (en) * 2016-12-20 2018-07-24 哈尔滨电气动力装备有限公司 Shield electric machine stator core tooth support end milling groove processing technology
CN108098277B (en) * 2017-12-29 2019-05-31 德阳天和机械制造有限责任公司 A method of screw thread is processed using screw cutter cold in diamond

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CN1190243A (en) * 1997-02-04 1998-08-12 株式会社金田制作所 Wound-core-type transformer and apparatus for manufacture thereof
JP2001295913A (en) * 2000-04-12 2001-10-26 Shin Kobe Electric Mach Co Ltd Resin gear and method of manufacturing the same
CN201402741Y (en) * 2009-04-30 2010-02-10 广东海鸿变压器有限公司 Winding, pouring and positioning mould of tridimensional wound core resin insulation dry-type transformer
EP2264550A1 (en) * 2009-06-16 2010-12-22 Samep S.A. - Montres Emile Pequignet Wheel for a reverser device, method for manufacturing such a wheel and reverser devices for a timepiece movement comprising such a wheel
CN102848158B (en) * 2011-07-01 2015-04-01 江苏高齿传动机械有限公司 Method for machining hardened face gear
CN102658461B (en) * 2012-05-22 2014-07-09 綦江重配齿轮有限公司 Axle gear ring tray machining process
CN102896473B (en) * 2012-10-26 2016-12-21 重庆赛力盟电机有限责任公司 A kind of processing technique of motor speed measuring tooth ring type thin wall members loading
CN203300438U (en) * 2013-06-04 2013-11-20 广东华力通变压器有限公司 Framework for winding transformer coil

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Address after: 528244 Workshop No. 2, Shunfu East Road, Lishui Town, Nanhai District, Foshan City, Guangdong Province, No. 5, 1st and 2nd floors (residence declaration)

Patentee after: Huali Voltage Transformer Co., Ltd., Guangdong Prov.

Address before: 528248 Huangqi Zhonglian Cable Factory, Nanhai District, Foshan City, Guangdong Province

Patentee before: Huali Voltage Transformer Co., Ltd., Guangdong Prov.