CN1152760C - Method and equipment of machining reducing deep hole with small mouth and large middle part - Google Patents
Method and equipment of machining reducing deep hole with small mouth and large middle part Download PDFInfo
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- CN1152760C CN1152760C CNB011318198A CN01131819A CN1152760C CN 1152760 C CN1152760 C CN 1152760C CN B011318198 A CNB011318198 A CN B011318198A CN 01131819 A CN01131819 A CN 01131819A CN 1152760 C CN1152760 C CN 1152760C
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- deep hole
- boring
- pressing plate
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Abstract
The present invention provides a method and a device for processing a diameter variable deep hole with a small inlet and a large middle part, which relates to the field of processing deep holes. A boring device with a cutter head regulation mechanism is arranged on a boring rod, and is sent to the deepest part of a through deep hole processed by the prior art. A special tool outside a processing member runs through a regulation hole which is communicated with the through deep hole and is formed on the same axial line with the through deep hole so as to enter the cutter head regulation mechanism of the device; the regulation of a cutter can be carried out in the hole. The axial displacement of a regulation cone is converted into the radial displacement of a cutter head by a regulation ring to achieve the purpose of changing the outside dimension of the cutting edge of the cutter head. The prospective diameter variable deep hole with the small inlet and the large middle can be processed after passing through tentative boring, detection, repeated cutter regulation in holes for many times, detection and boring; the diameter variable ratio of the deep hole is greater than 1 and is less than or equal to 1.2; the depth/hole diameter ratio is greater than or equal to 50. The method is simple and easy to implement; the device has the advantages of reasonable structure, accuracy, reliability, high processing efficiency and low cost, and is widely used for processing various diameter variable deep holes or through deep holes.
Description
Technical field
The present invention relates to the deep hole machining field, be meant especially to be machined into young reducing deep hole processing method broad in the middle and borer for realizing that this method designs.
Background technology
As everyone knows, at mechanical processing industry, generally adopt brill, car, mill, the method for boring, mill, on workpiece, process diameter difference, deep mixed pilot hole.But existing process technology and device only can solve shallow bore hole processing, deep hole that radially basic size is consistent and from shallow to deep radial dimension be corresponding descending step-like deep hole.King's generation is shown " hole process technology " clearly, (petroleum industry publishing house, in October, 1993, Beijing), the warm Hart work of U.S. William Holden J Si, " deep hole machining " that Guan Guangjin translates, (National Defense Industry Press,, Beijing in 1974) etc. in the works above-mentioned technology has all been done at length to discuss, but all not mentioned how the solution into young reducing deep hole machining technical problem broad in the middle.And adopt unconventional processing method, all be difficult to increase effectively the radial dimension of reducing deep hole as honing, electrolysis etc., even as adopt the honing method will realize reducing as 0.3 millimeter a small amount of, its processing is also very difficult, and the process-cycle is long, efficient is low, cost is high; And if adopt electrolysis rule technology very complicated, and precision is difficult to guarantee.
Summary of the invention
The object of the present invention is to provide a kind of simple, easy to adjust, accurate and reliable method and the borer that is machined into young reducing deep hole broad in the middle for realizing that this method designs.
The present invention goes into the processing method of young reducing deep hole broad in the middle, and it has to the effect that designed a kind of brand-new process technology and for realizing effective combination of the technological equipment that this technology designs.This method at first adopts prior art to process a straight-through deep hole on workpiece, and communicates with straight-through deep hole and adjustment hole on same axis one of workpiece other end processing.The borer that will have the cutter head governor motion is then sent into the bosom of straight-through deep hole, in outer workpiece, use specific purpose tool borer to be carried out toolsetting in the hole by adjustment hole, make cutter head stretch out the internal diameter of size greater than straight-through deep hole, draw boring, detection through examination, repeated multiple times is carried out toolsetting in the hole, is drawn boring, detection, can shape into young broad in the middle, 1＜reducing than≤1.2, the reducing deep hole of aspect ratio 〉=50.
Be made up of cutter head governor motion, boring head body, guiding righting strip, compression spring, sunk screw etc. for implementing the custom-designed borer of method of the present invention, global shape is cylindrical.Wherein the cutter head governor motion is made up of holding screw, gland, attachment screw, stage clip, fastening screw nut, pressing plate, cutter head, adjustable ring, cone governor, sheath, sealing ring etc.In a distance, distance boring head body top, be processed with a rectangle mounting groove downwards along axis, cone governor, adjustable ring, cutter head, pressing plate and fastening screw nut are installed in mounting groove successively.Top center is processed with the conical cone governor of regulating tank, link spinning bottom it is in the bottom surface of mounting groove central authorities, be sleeved on the outside of cone governor by the identical adjustable ring dimerous of shape, the lateral surface of its medial surface and cone governor fits like a glove.Two thickness cutter head symmetries identical with the height of adjustable ring are installed in the radially both sides of adjustable ring.Pressing plate and fastening screw nut are installed on them successively.At boring head body top be with the axis center be processed with three with the vertical installing hole that communicates of mounting groove end face, promptly central authorities are the holding screw installing hole, both sides are the attachment screw installing hole of equally distributed two top band stage clip positioning steps.Two attachment screws that are set with stage clip pass two the spacing breach of fastening screw nut and the pressing plate dress connection of center band through hole, the center be processed with regulate through hole holding screw then together by central installing hole and fastening screw nut spinning, and closely connect as one with the boring head body.The sphere of holding screw by its afterbody makes pressing plate and fastening screw nut keep certain distance, when clockwise adjusting holding screw, can promote pressing plate and compress cutter head, and this moment, two stage clips were compressive state; When inhour was regulated holding screw, under the effect of stage clip tension force, pressing plate was done displacement in the same way with attachment screw, and cutter head is in active state.Then, center adjustment hole by holding screw, pressing plate, use specific purpose tool can regulate cone governor, make it carry out axial displacement, simultaneously, under the promotion of its cone face, two parts of adjustable ring can carry out radial displacement in mounting groove, the promotion cutter head moves, thereby reaches the purpose of regulating the cutter edge outside dimension.
For preventing that cutting object from entering the cutter head governor motion, use gland, sealing ring and tubular sheath with the end face of boring head body and the encapsulation of the lateral surface more than the cutter head.
The outside is installed in by sunk screw for the righting strip of circular arc, compression spring in a plurality of grooves of processing vertically of boring head body middle and lower part, play a part stable, set upright the boring head body that leads.Boring head body center under the installation cutter head is sentenced is processed with the cooling-lubricant sprocket hole, and boring head body afterbody is the link that can adorn connection with boring bar.
Borer of the present invention is installed on the boring bar of existing deep hole boring machine, according to method of the present invention, can on workpiece, shape into young broad in the middle, 1＜reducing than≤1.2, the reducing deep hole of aspect ratio 〉=50.
Borer of the present invention also can be used for general deep hole, radially the basic size unanimity deep hole and from shallow to deep radial dimension be the processing of corresponding descending step-like deep hole.
The present invention has following advantage:
Method of the present invention is simple, can carry out toolsetting in the hole to the borer with cutter head governor motion outside workpiece, and is easy to adjust; Borer is simple in structure, and accurately and reliably, working (machining) efficiency height, cost are low.The present invention can be widely used in that machining is various goes into young reducing deep hole broad in the middle.
Description of drawings
Fig. 1 is the borer structural representation.
Specific implementation method
A kind of processing method of going into young reducing deep hole broad in the middle, at first use existing process technology with the excircle of workpiece car to certain size, on workpiece, process a straight-through deep hole that adheres to specification then, and communicate with straight-through deep hole and adjustment hole on same axis one of the other end of workpiece processing.Then borer of the present invention is associated in the boring bar dress, again the cutter edge external diameter is transferred in advance, borer is sent into the bosom that leads directly to deep hole, promptly play the boring position by boring bar less than behind the boring head body diameter.Outside workpiece, use special-purpose adjustment means by adjustment hole, enter the cutter head governor motion of borer, by regulating holding screw, cone governor, carry out the toolsetting hole in, in a boring position to the porch vertically 50～100mm section try to draw boring repeatedly.In time the workpiece wall thickness is detected with calibrator, through toolsetting in the repeated multiple times hole, detect, draw boring, until machine into young broad in the middle, 1＜reducing compare≤1.2, the reducing deep hole of aspect ratio 〉=50.At last, regulate withdrawing in the hole, borer withdraws from workpiece.
With reference to Fig. 1, for implementing to be made up of boring head body 9, cutter head governor motion, guiding righting strip 15, compression spring 16, sunk screw 17 etc. into the custom-designed borer of processing method of young reducing deep hole broad in the middle, global shape is cylindrical.Wherein the cutter head governor motion is positioned at the top of boring head body 9, mainly is made of holding screw 1, gland 2, attachment screw 3, stage clip 4, fastening screw nut 5, pressing plate 6, cutter head 7, adjustable ring 8, cone governor 10, sheath 11, sealing ring 13 etc.In a distance, distance boring head body 9 top, be processed with a rectangle mounting groove downwards along axis, cone governor 10, adjustable ring 8, cutter head 7, pressing plate 6 and fastening screw nut 5 are installed in mounting groove successively.Be processed with the installing hole of a band negative thread in the bottom surface of mounting groove central authorities, the link spinning of the band pin thread of conical cone governor 10 bottom it that the big bottom surface of end face is little is on installing hole, be connected as a single entity with boring head body 9, be processed with regulating tank 20 in the top center of cone governor 10.Adjustable ring 8 is made up of the identical two parts of shape, and they are sleeved on the outside of cone governor 10, and the lateral surface of its medial surface and cone governor 10 fits like a glove.Two thickness cutter head 7 symmetries identical with the height of adjustable ring 8 are installed in the radially both sides of adjustable ring 8.At cone governor 10, adjustable ring 8, pressing plate 6 and fastening screw nut 5 are installed above the cutter head 7 successively.At the top of boring head body 9, with the axis be the center be processed with three with the vertical installing hole that communicates of mounting groove end face, promptly the center is holding screw 1 installing hole, both sides are attachment screw 3 installing holes that two equally distributed tops are processed with stage clip 4 limited steps.Two attachment screws 3 that are set with stage clip 4, pass two the spacing breach on the fastening screw nut 5 and the pressing plate 6 dress connection of center band through hole, the center be processed with the top be interior hexagonal adjusting through hole 19 holding screw 1 then together by central installing hole and fastening screw nut 5 spinnings, and closely connect as one in boring head body 9, holding screw 1 joins by the sphere and the pressing plate 6 of its afterbody, and makes pressing plate 6 and fastening screw nut 5 keep certain distance.When clockwise adjusting holding screw 1, holding screw 1 can promote pressing plate 6 and compress cutter head 7, but pressing plate 6 is by the circular groove and cone governor 10, adjustable ring 8 maintenance certain distances at its center.This moment, two stage clips 4 that are sleeved on attachment screw 3 tops were compressive state; And when inhour was regulated holding screw 1, under stage clip 4 tension force effects, pressing plate 6 was done displacement in the same way with attachment screw 3, and cutter head 7 is in active state.Then use specific purpose tool,, embed the regulating tank 20 at cone governor 10 tops, can regulate cone governor 10, make it carry out axial displacement by the center adjustment hole 19 of holding screw 1, pressing plate 6.This moment, two parts of adjustable ring 8 can carry out simultaneously radial displacement in mounting groove under the promotion of cone governor 10 cone faces, and promoted cutter head 7 and move, thereby reached the purpose of regulating two cutter head 7 cutting edge outside dimensions.
For preventing that cutting object from entering the cutter head governor motion, use is positioned at the gland 2 of dress sealing ring 13 of holding screw 1 neck and tubular sheath 11 end face and the lateral surface of cutter head more than 7 of boring head body 9 is encapsulated, and they are associated in the head of holding screw 1 and the suitable distance of gland 2 maintenances with boring head body 9 dress with hold-down screw 14.
In the middle and lower part of boring head body 9, be symmetrily processed with 4-6 rectangular recess vertically, evenly be processed with a plurality of location blind holes 21 that are used to install compression spring 16 in the bottom of each groove.Use sunk screw 17 that righting strip 15 and the compression spring 16 of the outside as arc surface is fixed in the groove, in carrying out the hole, add play a part man-hour stable, set upright guiding boring head body 9.With the link down to boring head body 9 afterbodys, its center is processed with cooling-lubricant sprocket hole 18 at cutter head 7, can simultaneously two cutter heads 7 be lubricated and cool during work.
Use specific purpose tool to place in the driving hole 22 of bottom of boring head body 9, borer of the present invention can be installed on the boring bar of existing boring machine, again according to method of the present invention, can on workpiece, shape into young broad in the middle, 1＜reducing than≤1.2, the reducing deep hole of aspect ratio 〉=50.
The course of work of carrying out toolsetting in the hole by the cutter head governor motion is as follows:
The borer that installs cutter head 7 is sent into the bosom of the straight-through deep hole that shapes with prior art by boring bar, after promptly playing the boring position, outside workpiece, insert holding screw 1 top with allen wrench by the adjustment hole that communicates with straight-through deep hole again, inhour rotation holding screw 1, make pressing plate 6 unclamp cutter head 7, cutter head 7 can be slided in mounting groove.Then, use the regulating tank 20 that the in-line special spanner passes center adjustment through hole 19 embedding cone governors 10 top center of holding screw 1, pressing plate 6 instead, regulate cone governor 10 clockwise, make it carry out axial displacement, meanwhile, the conical surface of cone governor 10 promotes adjustable ring 8 and promotes two cutter heads 7 by adjustable ring 8 to carry out radial displacement.Behind the cutting edge of cutter head 7 incision workpiece, use allen wrench again instead and tighten holding screw 1 clockwise, and by fastening screw nut 5, pressing plate 6 fixedly in 7, holes of cutter head the toolsetting process promptly accuse and finish.After this can try to draw boring.Toolsetting need carry out repeatedly repeatedly in the hole, up to the reducing deep hole that machines expection.
Borer of the present invention also can be used for general deep hole, radially the basic size unanimity deep hole and from shallow to deep radial dimension be the processing of corresponding descending step-like deep hole.
Claims (3)
1. go into young reducing deep hole processing method broad in the middle for one kind, the borer that it is characterized in that having the cutter head governor motion is sent into the bosom of straight-through deep hole, in the workpiece outside, use specific purpose tool borer to be carried out toolsetting in the hole by the adjustment hole that communicates with straight-through deep hole, make the cutter head external diameter greater than straight-through deep hole internal diameter, after boring, detection are drawn in examination, repeated multiple times is carried out toolsetting in the hole, is detected, draws boring again, can shape into young broad in the middle, 1＜reducing than≤1.2, the reducing deep hole of aspect ratio 〉=50.
2. go into young reducing deep hole drilling apparatus broad in the middle for one kind, mainly contain boring head body (9), cutter head governor motion, guiding righting strip (15), compression spring compositions such as (16), global shape is cylindrical, it is characterized in that the cutter head governor motion is by holding screw (1), gland (2), attachment screw (3), stage clip (4), fastening screw nut (5), pressing plate (6), cutter head (7), adjustable ring (8), cone governor (10), sheath (11), sealing ring formations such as (13); Be processed with a rectangle mounting groove in distance boring head body (9) a distance, top downwards along axis, cone governor (10) is installed in mounting groove successively, adjustable ring (8), cutter head (7), pressing plate (6) and fastening screw nut (5), the top is processed with the central authorities of the link spinning of conical cone governor (10) bottom it of regulating tank (20) in the mounting groove bottom surface, but the adjustable ring of radial displacement (8) is sleeved on its outside, two thickness cutter head (7) symmetries identical with the height of adjustable ring (8) are installed in the both sides of adjustable ring (8), and pressing plate (6) and fastening screw nut (5) are installed on them successively; The attachment screw (3) that with the axis is equally distributed two the band stage clips in center (4) enters mounting groove from the installing hole at boring head body (9) top, and pass the spacing breach of fastening screw nut (5) with pressing plate 6 dress connection, the center is processed with the holding screw (1) of regulating through hole (19), and then the installing hole by boring head body (9) center of top and fastening screw nut (5) spinning be together, and closely connect as one with boring head body (9), holding screw (1) makes pressing plate (6) and fastening screw nut (5) keep certain distance by the sphere of its afterbody; When regulating holding screw (1) clockwise by adjusting through hole (19), holding screw (1) promptly promotes pressing plate (6) and compresses cutter head (7), and the stage clip (4) that be sleeved on attachment screw (3) neck this moment is compressive state; And when inhour was regulated holding screw (1), under stage clip (4) tension force effect, pressing plate (6) was done displacement in the same way with attachment screw (3), and cutter head (7) is in active state; The center adjustment through hole (19) that then uses specific purpose tool to pass through holding screw (1), pressing plate (6) can be regulated cone governor (10), make it carry out axial displacement, simultaneously, under the promotion of its conical surface, adjustable ring (8) can carry out radial displacement in mounting groove, promote cutter head (7) and move, thus the purpose that realizes regulating cutter head (7) cutting edge outside dimension.
3. according to claim 2ly go into young reducing deep hole drilling apparatus broad in the middle, the adjustable ring (8) that it is characterized in that being sleeved on cone governor (10) lateral surface is to be made of the identical two parts of shape, global shape is a tubular, and its medial surface and cone governor (10) lateral surface fits like a glove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011318198A CN1152760C (en) | 2001-12-11 | 2001-12-11 | Method and equipment of machining reducing deep hole with small mouth and large middle part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011318198A CN1152760C (en) | 2001-12-11 | 2001-12-11 | Method and equipment of machining reducing deep hole with small mouth and large middle part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349872A CN1349872A (en) | 2002-05-22 |
| CN1152760C true CN1152760C (en) | 2004-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011318198A Expired - Fee Related CN1152760C (en) | 2001-12-11 | 2001-12-11 | Method and equipment of machining reducing deep hole with small mouth and large middle part |
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| Country | Link |
|---|---|
| CN (1) | CN1152760C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101181A (en) * | 2009-12-17 | 2011-06-22 | 江苏双勤民生冶化设备制造有限公司 | Pull boring combined cutter |
| CN101817093B (en) * | 2010-04-08 | 2012-02-29 | 昆明电机厂有限公司 | Tool and method for turning larger-interior and smaller-exterior shaft hole |
| CN102151857A (en) * | 2011-01-21 | 2011-08-17 | 宁波华星新能源有限公司 | Fine-tuning knife |
| CN103934487A (en) * | 2014-04-23 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Boring tool used for machining deep holes of turbine sleeves and deep hole machining method |
| DE102017213046A1 (en) * | 2017-07-28 | 2019-01-31 | Gühring KG | CUTTING TOOL AND METHOD FOR PROCESSING A STORAGE GASSE |
| CN108247102A (en) * | 2018-01-10 | 2018-07-06 | 宁波海蔓汽车科技有限公司 | A kind of auto parts machinery drilling equipment |
| CN109332755A (en) * | 2018-10-17 | 2019-02-15 | 中北大学 | A kind of the internal screw thread borer and its boring process of reducing |
| CN111957989B (en) * | 2020-08-18 | 2023-04-28 | 齐齐哈尔建华机械有限公司 | Deep hole groove processing method |
| CN113290262A (en) * | 2021-06-07 | 2021-08-24 | 山东华宇工学院 | Numerical control large-diameter deep hole semi-fine boring head device |
| CN113787206A (en) * | 2021-09-10 | 2021-12-14 | 内蒙古北方重工业集团有限公司 | Deep hole expanding and boring machining device and machining method thereof |
-
2001
- 2001-12-11 CN CNB011318198A patent/CN1152760C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1349872A (en) | 2002-05-22 |
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Granted publication date: 20040609 Termination date: 20101211 |