CN204657530U - A kind of heavy special-shaped part machining accuracy deep hole device - Google Patents
A kind of heavy special-shaped part machining accuracy deep hole device Download PDFInfo
- Publication number
- CN204657530U CN204657530U CN201520344242.2U CN201520344242U CN204657530U CN 204657530 U CN204657530 U CN 204657530U CN 201520344242 U CN201520344242 U CN 201520344242U CN 204657530 U CN204657530 U CN 204657530U
- Authority
- CN
- China
- Prior art keywords
- deep hole
- oily device
- fixed mount
- bta
- awarding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of heavy special-shaped part machining accuracy deep hole device, comprise boring machine body, the operative end surface of the ram of boring machine body is connected by bolt with one end of a horizontally disposed fixed mount, the other end of fixed mount is provided with one and awards oily device, a cuttings liquid entrance is provided with bottom the outer end of awarding oily device, cuttings liquid entrance is connected with cuttings liquid feedway by pipeline, a fairlead is provided with inside the outer end of awarding oily device, a BTA drill bit is provided with in fairlead, the rear end of BTA drill bit is connected with the threaded one end of hollow drill pipe through awarding in the middle part of oily device, the threaded one end that the other end and of hollow drill pipe is located at the drill bushing body in fixed mount is connected.BTA deep hole processing system successfully docks with console mode milling-boring machine by it, deep hole machining positioning precision is high, meet porous and the high part of position accuracy demand, make full use of the advantage of console mode cnc boring and milling machine, centering location is convenient and the degree of accuracy is high, is applicable to the multiple diameter of heavy special-shaped part and the deep hole machining of the degree of depth.
Description
Technical field:
The utility model relates to a kind of heavy special-shaped part machining accuracy deep hole device.
Background technology:
Deep hole machining: refer to the deep hole machining that the machining hole degree of depth is greater than more than 10 with the ratio of bore dia.Along with the development of modern industry, increasing deep-hole parts is used, and especially the deep-hole parts of some high accuracy, the large degree of depth is due to the draw ratio of its super large, determines its process difficult.(1) heat radiation is cut difficult: the heat in metal cutting of conventional processes 80% is taken away by chip, but closing with in semi-enclosed deep hole machining, lubrication, cooling all very difficult, heat diffusion is slow, workpiece, cutter have become main heat sink body, cause cutting edge roundness temperature can to reach 600 DEG C, extreme influence tool life.Machining hole also expands with heat and contract with cold simultaneously, has had a strong impact on hole machined precision.(2) process system poor rigidity: deep hole draw ratio is large, drilling rod is inevitable elongated, and rigidity wretched insufficiency, adds problems such as easily producing vibration, distortion man-hour, fracture.(3) chip removal difficulty: cut narrow space, chip removal is very difficult, and easy and hole wall friction, there is spiral goove in finished surface, chip easily occurs and blocks, cutter is easy to wear, causes part rejection.
My company is according to the market demand, domestic and international advanced technology is introduced by absorbing, Development and Production series of heat die forging special pressure machine, is the of paramount importance pressing equipments in field such as automobile, aviation, electronics, household electrical appliances, is mainly used in blocking and the finish-forging of the part such as bent axle, gear.D26-6300 hotdie forging press is the product of the up-to-date development of company, and this product only has a few company of only a few to produce at home.The lower bearing bracket 13 of its product weighs 98 tons, and material is ZG230-450, and have the liftout hole of 6 dark 1330mm of φ 100H7mm, draw ratio reaches 13:1, and difficulty of processing is large, precision is high, is listed in technical barrier in each enterprise.As Figure 1-3, deep hole 14 process technology requires as follows the structural representation of this part: (1) 6-φ 100H7 liftout hole, circularity 0.02mm, inner bore surface roughness Ra3.2.(2) with end face error of perpendicularity 0.05mm, position degree 0.20mm between each hole in frame.(3) hole depth 1330mm, and affect can only process from one side by design of part.As can be seen from Fig. 1-3, this part belongs to typical machining accuracy deep hole part, how to process the deep hole of 6 φ 100H7 by drawing, just becomes the key ensureing product quality.
Traditional processing mode and shortcoming as follows:
One, the processing of spiral bit hole drilling and reaming is lengthened by tradition
(1), smooth chip removal can not be ensured, cooling difficulty.
(2), must frequent forward and back drill bit chip removal, non-cutting time is long, and production efficiency is low, and labour intensity is large.
(3), drill bit guidance capability is poor, and do not have reliable guidance tape, the rib band of drill bit own can only be relied on to lead, and sideslip possibility is large.
(4), by drill bit self character affect, anti-twisting property is poor, if there is the defect such as burning into sand, pore in part blank, possible card breaking of rod head, causes workpiece to be scrapped.
(5), cornish bit pole length is large, and poor rigidity, does not almost process possibility.
Two, deep hole chit drill system of processing
Chit drill system of processing can form effective cooling recirculation system, and cooling, the chip removal problem of chip cutlery can solve, and chit drill body has feather key, but steering capability are slightly short of.Most importantly production efficiency is low, and chip speed is 20-30m/min, the average 5-7mm/min of the amount of feeding, and the hole that 1330mm is dark needs minimum 4 hours of time kept in reserve, does not still comprise non-cutting time.
Three, deep hole machining BTA system
Existing BTA deep hole processing system, technology maturation, production efficiency are high, and belong to outer cold interior chip removal mode, cuttings liquid enters between drilling-rod external wall and workpiece machined surface by awarding oily device, arrive tool nose and carry out cooling and lubricating, and chip is discharged from drilling rod inside.Award oily device except there is guide function, additionally provide the passage to cutting region oil transportation.This system uses extensively, and compared with inhaling brill with spray, high cuttings liquid pressure makes single-pipe drill system more reliable, the particularly first-selection of large aperture, high load capacity Continuous maching.Although BTA deep hole processing system technology maturation, but the deep hole processing equipment of professional depth drill factory is mainly used on revolving parts, intergrated system of no-rotating part is also generally single hole processing, as Figure 1-3, lower bearing bracket weighs 98 tons, abnormity, porous, so existing deep hole processing equipment is not processed on market.
Utility model content:
The utility model is in order to make up the deficiencies in the prior art, provide a kind of heavy special-shaped part machining accuracy deep hole device, its reasonable in design, easy to use, low cost of manufacture, successfully docked with console mode milling-boring machine by BTA deep hole processing system, the two is had complementary advantages, and makes full use of the deep hole machining advantage of the actuating unit of floor type boring and milling machine, feed mechanism and BTA system; Deep hole machining positioning precision is high, meet porous and the high part of position accuracy demand, make full use of the advantage of console mode cnc boring and milling machine, centering location is convenient and the degree of accuracy is high, be applicable to the multiple diameter of heavy special-shaped part and the deep hole machining of the degree of depth, solve problems of the prior art.
The utility model for solving the problems of the technologies described above adopted technical scheme is:
A kind of heavy special-shaped part machining accuracy deep hole device, comprise boring machine body, the operative end surface of the ram of boring machine body is connected by bolt with one end of a horizontally disposed fixed mount, the other end of fixed mount is provided with one and awards oily device, a cuttings liquid entrance is provided with bottom the outer end of awarding oily device, cuttings liquid entrance is connected with cuttings liquid feedway by pipeline, a fairlead is provided with inside the outer end of awarding oily device, a BTA drill bit is provided with in fairlead, the rear end of BTA drill bit is connected with the threaded one end of hollow drill pipe through awarding in the middle part of oily device, the threaded one end that the other end and of hollow drill pipe is located at the drill bushing body in fixed mount is connected, the other end of drill bushing body is connected by bolt with the working end of boring spindle, a chip removal device is provided with in the external side of drill bushing, the square hole of chip removal mouth on drill bushing body of chip removal device is connected with hollow drill pipe.
The outer end end face of fairlead clamps a sealing ring.
Described hollow drill pipe is threaded by some columnar drilling rod head and the tail and forms.
The utility model adopts such scheme, reasonable in design, easy to use, low cost of manufacture, BTA deep hole processing system is successfully docked with console mode cnc boring and milling machine, the two is had complementary advantages, and makes full use of the deep hole machining advantage of the actuating unit of console mode cnc boring and milling machine, feed mechanism and BTA system; Deep hole machining positioning precision is high, meets porous and the high part of position accuracy demand, makes full use of the advantage of console mode cnc boring and milling machine, and centering location is convenient and the degree of accuracy is high, is applicable to the multiple diameter of heavy special-shaped part and the deep hole machining of the degree of depth; Drilling rod multi-section structure, arbitrarily combines, and fairlead manufactures as required, realizes a tractor serves several purposes, greatly improves capacity utilization; Manufacturing procedure and the secondary transfer of workpiece can be reduced, make the deep hole machining of part and the processing at other positions on console mode cnc boring and milling machine once property complete, fabulous ensure that crudy.
Accompanying drawing illustrates:
Fig. 1 is the plan structure schematic diagram of the utility model lower bearing bracket hole to be drilled.
Fig. 2 is that the master of Fig. 1 looks sectional structure schematic diagram.
Fig. 3 is the left-hand sectional structure schematic diagram of Fig. 1.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the structure for amplifying schematic diagram analysing and observe position in Fig. 4.
Fig. 6 installs the structural representation after closing cover in Fig. 3.
In figure, 1, ram, 2, fixed mount, 3, oily device is awarded, 4, cuttings liquid entrance, 5, fairlead, 6, BTA drill bit, 7, hollow drill pipe, 8, drill bushing body, 9, boring spindle, 10, chip removal device, 11, chip removal mouth, 12, sealing ring, 13, lower bearing bracket, 14, deep hole, 15, cover is closed, 16, control device.
Detailed description of the invention:
For clearly demonstrating the technical characterstic of this programme, below by detailed description of the invention, and in conjunction with its accompanying drawing, the utility model is elaborated.
As illustrated in figures 4-5, a kind of heavy special-shaped part machining accuracy deep hole device, comprise boring machine body, the operative end surface of the ram 1 of boring machine body is connected by bolt with one end of a horizontally disposed fixed mount 2, the other end of fixed mount 2 is provided with one and awards oily device 3, a cuttings liquid entrance 4 is provided with bottom the outer end of awarding oily device 3, cuttings liquid entrance 4 is connected with cuttings liquid feedway by pipeline, a fairlead 5 is provided with inside the outer end of awarding oily device 3, a BTA drill bit 6 is provided with in fairlead 5, the rear end of BTA drill bit 6 is connected with the threaded one end of hollow drill pipe 7 through awarding in the middle part of oily device 3, the threaded one end that the other end and of hollow drill pipe 7 is located at the drill bushing body 8 in fixed mount 2 is connected, the other end of drill bushing body 8 is connected by bolt with the working end of boring spindle 9, a chip removal device 10 is provided with outside drill bushing body 8, the square hole of chip removal mouth 11 on drill bushing body 8 of chip removal device 10 is connected with hollow drill pipe 7, chip removal device 10 is for discharging chip and cuttings liquid.
Fixed mount 2 is Plate Welding part, and cost of manufacture is low, and can meet instructions for use.Fixed mount has two effects, and one is be connected with the ram of cnc boring and milling machine; Two be supporting BTA deep hole processing system award oily device, ensure milling-boring machine main shaft, central coaxial degree that BTA awards oily device, drilling rod.During processing fixed mount, fixed mount setting circle should be ensured, award the requirement of oily device installing hole axiality.
The effect of awarding oily device 3 is: (1) inputs cuttings liquid to processing work and seals; (2) drilling rod is supported; (3) brill, boring head guiding.A cuttings liquid entrance is provided with bottom the outer end of awarding oily device, cuttings liquid entrance is connected with cuttings liquid feedway by pipeline, cuttings liquid feedway is primarily of compositions such as fuel tank, pumping plant, petroleum pipelines, cuttings liquid sends into workpiece cutting region by awarding oily device, the effect one of cuttings liquid is lubrication, cooling cutting region, and two is wrap up in band chip to be discharged into automatic chip removal and fuel tank.Awarding the head of oily device, having a fairlead, for boring, boring head guiding, simultaneously end face and Work piece sealing, changing cutter and must change fairlead.The rated operating pressure of cuttings liquid feedway is 2.5MPa, power is provided by two Y132S-4 threephase asynchronous machines, separately with a gear pump composition, the fluid of two gear pump outputs intersects at an oil circuit by integrated package, being transported to by petroleum pipeline awards after oily device, can obtain 100,200L/min two kinds of flows, according to processing work pore size, duty during use, combined by the unlatching of two motors, select single work or work simultaneously.
Fairlead 5 No. 45 carbon steel, modified aft-loaded airfoil makes, cylindrical is gap location fit with awarding oily device hole, endoporus makes according to the many specifications of bore diameter size, realize a tractor serves several purposes, fairlead endoporus, outer circles should in 0.01mm, and both ends of the surface and interior hole perpendicularity require 0.02mm, length, at more than 200mm, makes it have good guide-localization effect.
The outer end end face of fairlead 5 clamps a sealing ring 12.
Described hollow drill pipe 7 is threaded by some columnar drilling rod head and the tail and forms, and drilling rod first segment length is about 800mm, and all the other are 500mm, can according to the selective lengthening of the needs of hole depth.Drilling rod is columnar structured, drilling rod external diameter with award oily device inner chamber, machining hole inwall and form cuttings liquid and enter cutting region passage, knife bar endoporus is in order to discharge chip and cooling fluid.During boring, drilling rod transmits moment of torsion and the centripetal force of machine tool chief axis.The benefit that hollow drill pipe is designed to more than one piece combination is: a, drilling rod more than one piece, then single-piece drilling rod shortens, and fixed mount is oversize with regard to what it goes without doing, and the rigidity of deep hole machining mechanism, stability are strengthened, and ensures crudy.When b, earlier drilled holes, cooling, chip removal is more smooth and easy.The clamping position of c, lower bearing bracket, bed of disembarking is nearer, and enhance the processing intensity of cnc boring and milling machine, while deep hole machining, other positions also can process at one time, and ensure that the machining accuracy of workpiece, reduce secondary clamping.
A processing method for heavy special-shaped part machining accuracy deep hole device, concrete steps are as follows:
(1) driller's skill pilot hole: the upper end face milling of lower bearing bracket 13 to be processed is put down and stayed 30mm allowance, ram and boring spindle is moved by control device 16 numerical control of boring machine, boring spindle drives BTA drill bit on lower bearing bracket to be processed, bore the guiding fabrication hole of 6 dark 30mm through hollow drill pipe, and the diameter of guiding fabrication hole matches with fairlead external diameter; Technique pilot hole plays vital effect in deep hole machining: a, the centre-to-centre spacing determining deep hole in advance and position degree.While b, pilot hole aperture serve guiding, positioning action in deep hole machining, the supporting also played, stabilization, ensure that the job stability of this organisation of working and the quality of deep hole machining.C, pilot hole bottom surface roughness Ra 1.6, with sealing ring close contact, for BTA system provides good sealing cooling processing environment.
(2) holes drilled through;
(3) reaming: change fairlead and BTA drill bit, on the lower bearing bracket of the through hole other end, install closed cover 15 additional simultaneously, as shown in Figure 6, before reaming, deep hole drills through, and cuttings liquid can not be allowed to spray along the hole drilled through when reaming, how to build the cuttings liquid circulatory system of a sealing, become the key link of reaming, according to this situation, we install closed cover additional at the deep hole other end; Cornish bit, according to pore size, precision from main separation cutter, all can be able to meet the demands for general 2-3 time;
(4) deep hole 14 machines, the 30mm allowance of end face and technique pilot hole on the flat lower bearing bracket of milling, and cuts off and close cover.
The concrete operations of above-mentioned steps (2) are as follows: move ram and boring spindle by the control device numerical control of boring machine, boring spindle drives BTA bit bore through hollow drill pipe, a drilling rod is first used during boring, after having holed, shift out first drilling rod, screw thread adjunction second drilling rod, continues boring to holes drilled through and completes.
Result of use:
1) 6 deep hole centre-to-centre spacing, positional precision are primarily of the accuracy guarantee of numerical control borer own.
2) deflection≤1/1000mm is imported and exported in hole.
3) right boring back aperture precision H7 ~ 8.
4) right boring metapore surface roughness Ra 1.6 ~ 3.2.
Above-mentioned detailed description of the invention can not as the restriction to the utility model protection domain, and for those skilled in the art, any alternate modification make the utility model embodiment or conversion all drop in protection domain of the present utility model.
The utility model does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (3)
1. a heavy special-shaped part machining accuracy deep hole device, it is characterized in that: comprise boring machine body, the operative end surface of the ram of boring machine body is connected by bolt with one end of a horizontally disposed fixed mount, the other end of fixed mount is provided with one and awards oily device, a cuttings liquid entrance is provided with bottom the outer end of awarding oily device, cuttings liquid entrance is connected with cuttings liquid feedway by pipeline, a fairlead is provided with inside the outer end of awarding oily device, a BTA drill bit is provided with in fairlead, the rear end of BTA drill bit is connected with the threaded one end of hollow drill pipe through awarding in the middle part of oily device, the threaded one end that the other end and of hollow drill pipe is located at the drill bushing body in fixed mount is connected, the other end of drill bushing body is connected by bolt with the working end of boring spindle, a chip removal device is provided with in the external side of drill bushing, the square hole of chip removal mouth on drill bushing body of chip removal device is connected with hollow drill pipe.
2. one according to claim 1 heavy special-shaped part machining accuracy deep hole device, is characterized in that: on the outer end end face of fairlead, clamp a sealing ring.
3. one according to claim 1 heavy special-shaped part machining accuracy deep hole device, is characterized in that: described hollow drill pipe is threaded by some columnar drilling rod head and the tail and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344242.2U CN204657530U (en) | 2015-05-25 | 2015-05-25 | A kind of heavy special-shaped part machining accuracy deep hole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344242.2U CN204657530U (en) | 2015-05-25 | 2015-05-25 | A kind of heavy special-shaped part machining accuracy deep hole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204657530U true CN204657530U (en) | 2015-09-23 |
Family
ID=54127965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344242.2U Active CN204657530U (en) | 2015-05-25 | 2015-05-25 | A kind of heavy special-shaped part machining accuracy deep hole device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204657530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907602A (en) * | 2015-05-25 | 2015-09-16 | 山东金辰机械股份有限公司 | Heavy type specially-shaped part high-accuracy deep hole machining device and method |
| CN107363295A (en) * | 2017-07-20 | 2017-11-21 | 中广核核电运营有限公司 | Drilling equipment |
| CN109332753A (en) * | 2018-12-05 | 2019-02-15 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of BTA drill bit Counterboring apparatus and expanding method |
| CN112621132A (en) * | 2020-12-17 | 2021-04-09 | 太重（天津）滨海重型机械有限公司 | Method for processing special-shaped face hole of casting and casting |
-
2015
- 2015-05-25 CN CN201520344242.2U patent/CN204657530U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907602A (en) * | 2015-05-25 | 2015-09-16 | 山东金辰机械股份有限公司 | Heavy type specially-shaped part high-accuracy deep hole machining device and method |
| CN107363295A (en) * | 2017-07-20 | 2017-11-21 | 中广核核电运营有限公司 | Drilling equipment |
| CN107363295B (en) * | 2017-07-20 | 2019-01-25 | 中广核核电运营有限公司 | Drilling equipment |
| CN109332753A (en) * | 2018-12-05 | 2019-02-15 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of BTA drill bit Counterboring apparatus and expanding method |
| CN112621132A (en) * | 2020-12-17 | 2021-04-09 | 太重（天津）滨海重型机械有限公司 | Method for processing special-shaped face hole of casting and casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204657530U (en) | A kind of heavy special-shaped part machining accuracy deep hole device | |
| CN100558501C (en) | The perforating process of carbon fiber composite material article | |
| CN104907602A (en) | Heavy type specially-shaped part high-accuracy deep hole machining device and method | |
| CN112008101A (en) | Drilling method for ultra-deep long hole | |
| CN201067813Y (en) | Large-scale deep hole drill boring lathe | |
| CN106694963B (en) | Stepped boring and drilling compound cutter and boring and drilling processing technology thereof | |
| CN103252521A (en) | Cutter for machining coaxial holes with equal diameter and large interval and machining method thereof | |
| CN201940784U (en) | Machining device of large length-diameter ratio nonferrous metal step deep hole | |
| CN102784943B (en) | Blind hole machining device | |
| CN107953110B (en) | Tool and method for the processing of diesel engine base base bearing screw hole | |
| CN104772604B (en) | The processing method of steam jet on steam turbine spray vapour cover plate | |
| CN206316404U (en) | A kind of ultra-deep blind hole processing tool | |
| CN210967134U (en) | Compound tool for processing through hole | |
| CN209223236U (en) | A kind of process unit of turning deep hole | |
| CN103286338B (en) | AP1000 steam generator tube sheet group hole High Efficient Machining Technology method | |
| CN202715859U (en) | Deep hole boring tool mechanism | |
| CN101332556A (en) | Production method of diamond compound tool for processing shoulder hole | |
| CN201537707U (en) | Diamond composite milling reamer for processing inner die cavity holes | |
| CN108127335A (en) | A kind of processing method of taper pin-hole | |
| CN103801711A (en) | Spindle head with improved structure | |
| CN104162701B (en) | A kind of correction drilling rod | |
| CN201136073Y (en) | Compound tool for processing internal thread of workpieces | |
| CN207681541U (en) | A kind of deep hole boring machine of lathe improvement | |
| CN204171383U (en) | A kind of deep hole quick change knife bar | |
| CN106881567B (en) | A kind of drilling process of composite material metal inclined hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Heavy type specially-shaped part high-accuracy deep hole machining device and method Effective date of registration: 20171122 Granted publication date: 20150923 Pledgee: Xining national low-carbon industrial fund Cci Capital Ltd Pledgor: JINCHEN MACHINERY CO., LTD. Registration number: 2017370010077 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |