CN102717108A - Tapered deep-hole boring device based on double-cone principle - Google Patents
Tapered deep-hole boring device based on double-cone principle Download PDFInfo
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- CN102717108A CN102717108A CN2012102100999A CN201210210099A CN102717108A CN 102717108 A CN102717108 A CN 102717108A CN 2012102100999 A CN2012102100999 A CN 2012102100999A CN 201210210099 A CN201210210099 A CN 201210210099A CN 102717108 A CN102717108 A CN 102717108A
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Abstract
The invention belongs to the technical field of tapered hole processing devices, and particularly relates to a tapered deep-hole boring device based on a double-cone principle, which solves the problem that the conventional method for processing tapered deep-holes cannot be suitable for the conditions that holes are too deep and a hole diameter is small. The tapered deep-hole boring device comprises a boring rod and a boring cutter, wherein holes are formed in the axial center and the radial direction of the boring rod, and the boring cutter is installed in the radial hole of the boring rod; a double-cone core rod is arranged in the axial hole of the boring rod; two cone bodies are arranged at the front end of the double-cone core rod, and the tapers of the two cones of the two cone bodies are equal; a floating gripper is also installed on the boring rod; and a tapered hole is formed in the boring cutter, and the axis direction of the tapered hole is parallel to the axis direction of the boring rod. The tapered deep-hole boring device has the beneficial effects that the defect that the boring rod is easy to deform during the tapered deep-hole processing is overcome, and the processing precision is increased.
Description
Technical field
The invention belongs to the technical field of processing bellmouth device, be specifically related to a kind of taper deep hole boring device based on bipyramid face principle.
Background technology
The boring cylindrical hole has mature technique, and boring taper shallow bore hole is also realized easily.The taper hole that boring is very dark, its difficulty is the first, and the boring cutter bar amount of overhanging is big, and the boring cutter bar easy deformation is not easy to guarantee crudy.The second, in the shallow bore hole processing, the boring cutter radial feed realizes easily, and during the very dark taper hole of boring, the mode radial feed when boring cutter is difficult to according to the boring shallow bore hole.The 3rd, be difficult to directly adopt deep hole machining technology such as drill gun, BTA brill, DF brill to accomplish the boring of taper deep hole.Eighties of last century; The mankind have captured the technical barrier of machining medium-length hole processing; Formed scientific modern deep hole machining technology, but should technology mainly be applicable to the processing of cylinder deep hole, its main feature is to adopt from leading the sizing cylindrical cutting tool; And the conical bore diameter is a variable, and the processing of directly applying mechanically deep hole machining technology solution taper deep hole acquires a certain degree of difficulty.
Although when design, people avoid the circular cone deep-hole structures, in some cases, are difficult to avoid fully the circular cone deep-hole structures as far as possible.Such as, casting or during injection moulding, even cylindrical work sometimes often also will design pattern draft, this just makes mould can have taper hole, and when part is longer, just makes mould have the taper deep hole.In real work, people have explored the certain methods of processing taper deep hole, but these methods often have limitation, and such as adapting to the bigger situation in aperture, perhaps, can only adapt to the hole is not too dark situation.
Summary of the invention
Goal of the invention of the present invention: for the processing method that solves existing taper deep hole can not adapt to Kong Taishen; The situation that the aperture is little provides a kind of principle simple, wide adaptability; Can combine with modern cnc technology, can accurately control the taper deep hole boring device based on bipyramid face principle in taper hole aperture.
The present invention realizes through following technical scheme:
A kind of taper deep hole boring device based on bipyramid face principle comprises boring bar, boring cutter, it is characterized in that: the axial centre of boring bar and radially all perforates; Boring cutter is installed in the radial hole of boring bar, is provided with bipyramid face core bar in the axial hole of boring bar, the tapering that the front end of bipyramid face core bar is provided with two conical surface bodies, its two conical surfaces equates; Also being equipped with on the boring bar floats supports, and unsteady support comprises support bar, swivel nut and spring, and swivel nut is fixed in boring bar; Support bar passes the hole at swivel nut center, and the support bar bottom has annular protrusion, between annular protrusion and the swivel nut spring is installed; Be processed with keyway on the support bar, card has stop pin in the keyway; Have taper hole on the boring cutter, the axis direction of taper hole is parallel to the boring bar axis direction,
The taper hole that the inner cone of described bipyramid face core bar passes on the boring cutter to be offered; The inner cone of bipyramid face core bar and a side contacts of taper hole, opposite side separates, the rear cone of bipyramid face core bar and an end in contact of support bar; The rear cone of the gradient of this end face of support bar and bipyramid face core bar is consistent; An other end of support bar contacts with the bore area of workpiece boring, and the gradient of this end face of support bar and the hole taper of workpiece are consistent, and unsteady support is provided with two; One of them unsteady axis of support and boring cutter parallel axes; And be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis, the another one axis of support of floating is vertical with boring cutter axis antarafacial, and is positioned at the below of boring cutter;
Also be provided with cylinder core bar and screw thread spline core bar in the axial hole of boring bar; Bipyramid face core bar and cylinder core bar, screw thread spline core bar are coaxial, and the rear end of bipyramid face core bar is porose, and hole and cylinder core bar front end minor diameter position match; There is a pin to be horizontally through both matching parts; The rear end of cylinder core bar is porose, matches with screw thread spline core bar front end smaller diameter end in the hole, has a pin to be horizontally through both matching parts; Threads engaged in the stomidium behind threaded portion and the boring bar on the screw thread spline core bar; Splined section on the screw thread spline core bar matches with spline housing, and splined section and contiguous position thereof are provided with spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor through shaft coupling;
Two long spiro nails of symmetry are installed on the boring cutter, and the gathering sill that two long spiro nails pass on the boring bar to be offered links to each other with short screw on being fixed in boring bar through extension spring, and gathering sill is along the length of the boring cutter axis direction diameter greater than long spiro nail,
Go back perforate on the boring bar industrial endoscope is installed.
Be processed with two on the described swivel nut upper surface and can insert the complementary connecting hole that nipper plier is screwed into swivel nut boring bar; On swivel nut bottom surface and position that boring bar contacts and all be processed with annular groove on the swivel nut centre bore hole wall, place blind nut seal and unsteady supporting sealing member respectively in the annular groove of swivel nut bottom surface with in the annular groove of swivel nut centre bore hole wall.
The both sides of described boring cutter bellmouth are processed with cannelure respectively, place seal in the groove.
One end of described boring bar is equipped with the boring bar end cap, and boring bar end cap end face is offered cannelure, places seal in the cannelure.
The transparent sealing lid is installed at the position of corresponding industrial endoscope camera lens on boring bar.
At cylinder core bar cylindrical and boring bar endoporus contact position O-ring seals is installed.
Beneficial effect of the present invention:
The first, utilize the motion of conical surface control cutter radial, can satisfy the needs of processing taper hole.
The second, two supports of floating are set, share radial cutting force and tangential cutting power respectively, overcome in the deep taper hole process shortcoming of boring bar easy deformation.
The 3rd, be provided with bipyramid face core bar, the tapering of two conical surfaces is identical, makes that the radial motion of cutter is consistent with the radial motion of the support of floating, and making floats is supported in the process and can plays a role all the time.Support an end owing to float and contact, can play the benchmark of doing for oneself, self effect to a certain extent, help improving machining accuracy with finished surface.
The 4th, utilize servomotor and control device thereof, use the radial motion of spline housing 23 and thread mechanism control cutter simultaneously, technical scheme is simple, accurate, reliable, can satisfy the needs of processing high-quality taper deep hole.Be equipped with many graduation marks, can further grasp, check the taper hole diameter, prevent the generation of process quality issue.
The 5th, industrial endoscope is convenient to observe process, can in time handle in case pinpoint the problems, and avoids being difficult to observe in the common deep hole machining process drawback of cutting situation.
Description of drawings
Fig. 1 is applied to the structural representation of engine lathe for the present invention,
Fig. 2 be A-A to structural representation,
Fig. 3 is a bipyramid face core bar structure sketch map,
Fig. 4 is a cylinder core bar structural representation,
Fig. 5 is a screw thread spline core bar structural representation,
Fig. 6 is applied to the structural representation of deep hole lathe for the present invention,
Fig. 7 is the boring bar sketch map,
Fig. 8 be boring bar C-C to structural representation,
Among the figure: 1-lathe bed, 2-workpiece, 3-scroll chuck, 4-main spindle box, 5-main shaft, 6-boring bar end cap, 7-boring bar; 8-boring bar end cap seal, 9-bipyramid face core bar, 10-boring cutter, 11-boring cutter seal, 12-swivel nut, 13-stop pin, 14-support bar; The 15-supporting sealing member of floating, 16-spring, 17-blind nut seal, 18-Work piece sealing spare, 19-sealing ring, 20-bearing, 21-Y shape seal; 22-O shape seal, 23-spline housing, 24-shaft coupling, 25-servomotor, 26-slide carriage, 27-screw thread spline core bar, 28-cylinder core bar; 29-oil delivering unit seat, 30-oil delivering unit support, 31-servomotor control device, 32-revolving meber, 33-centre frame, 34-industrial endoscope, 35-transparent sealing lid; The 36-impulse generator, 37-scroll chuck cover, 38-short screw, 39-long spiro nail, 40-extension spring, 41-feeding motor control assembly, 42-feeding motor.
The specific embodiment
Embodiment 1: the present invention is applied to engine lathe, and is as shown in Figure 1.
Engine lathe itself has the function of bore hole, on engine lathe, is equipped with the mentioned necessary part of the present invention, simply changes a social system, and can accomplish the taper deep hole boring.These parts comprise parts such as boring bar 7, boring cutter 10, bipyramid face core bar 9, cylinder core bar 28, screw thread spline core bar 27.Scroll chuck 3 on the main spindle box 4 of lathe, the workpiece 2 that will have the taper deep hole is clamped, and centre frame 33 is by the other end of holding workpiece.
Oil delivering unit support 30 is fixed in a certain position of lathe bed 1 guide rail according to the length of workpiece, is fixed with oil delivering unit seat 29 on the oil delivering unit support 30, and an end of revolving meber 32 is installed on the oil delivering unit seat 29 through bearing, and the other end contacts with workpiece end face.
One end of boring bar 7 is fixedly connected with slide carriage 26, and boring bar 7 is with mobile the do axial feed of slide carriage 26 along bed ways, and servomotor 25 and the shaft coupling 24 that is attached thereto, spline housing 23 also move thereupon.The power resources of slide carriage motion are main motor.
Two radial direction through hole of processing get into fluid from macropore on the wall of oil delivering unit seat 29, and fluid flows to the boring cutter place through the inner space of oil delivering unit seat 29, the inner space of revolving meber 32, washes away iron filings, cooling, lubricated working position.Iron filings, fluid are from other one section outflow of workpiece.Be provided with scroll chuck cover 37 at the scroll chuck place, spindle hole by the situation of the prior shutoff of manual work under, iron filings, fluid are under action of centrifugal force; Be thrown in the scroll chuck cover from the space between the claw; Prevent that fluid from throwing away, produce and pollute that the bottom of scroll chuck cover is provided with chip removal mouth; Adopt prior art in time with the iron filings cleaning, prevent the iron filings accumulation.
Little radial direction through hole from oil delivering unit seat 29 walls gets into other high-voltage oil liquid, through the pushing of the axial hole on oil delivering unit seat 29 walls revolving meber 32, prevents its axial play.
The boring cutter 10 that can move with respect to boring bar is installed in the transverse holes of boring bar 7, in the axial hole at boring bar center, is placed with bipyramid face core bar 9, cylinder core bar 28, screw thread spline core bar 27, swivel nut 12, spring 16 are installed on boring bar, float and support 14.
The rear portion conical surface of bipyramid face core bar 9 and unsteady 14 the end in contact that supports, the other end that supports that floats contacts with workpiece 2, and the hole at swivel nut 12 middle parts of being fixed in boring bar is passed in the support 14 of floating, and can move with respect to swivel nut.Unsteady 14 1 ends that support have annular protrusion, and mounting spring 16 between annular protrusion and the swivel nut, and spring 16 makes ends of unsteady support 14 contact with the conical surface of bipyramid face core bar 9 all the time, and when 9 axially-movables of bipyramid face core bar, feasible floating supported 14 radial motions.When the hole of institute's boring diminishes, because 9 two conical surface taperings of bipyramid face core bar are identical, float and support 14 inwardly motions, adapt with the hole that is processed.The effect of supplemental support has been played in the existence of floating and supporting, and can reduce the distortion of boring bar, and this is very dark for the hole, and the taper hole processing when boring bar is longer acts on very big.
The two ends of unsteady support 14 have gradient, and with the end that bipyramid face core bar 9 contacts, the gradient and the core bar conical surface are consistent, an end that contacts with workpiece, and gradient and workpiece tapering are consistent.
Floating to support is processed with keyway, and dismountable stop pin 13 snaps in the keyway; Prevent to float and support 14 around self axis revolution.Float supporting 14 has two, one of them unsteady axis of support and boring cutter parallel axes or near level, and be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis; Radial cutting force is born in help; Unsteady axis of support of another one and boring cutter axis space are staggered, and vertical or approaching vertical, are positioned at below the boring cutter; Tangential cutting power is born in help, reduces the distortion of boring bar.
Bipyramid face core bar 9 and cylinder core bar 28, screw thread spline core bar 27 are coaxial; The right-hand member of bipyramid face core bar 9 is porose; Hole and cylinder core bar 28 left end minor diameter positions match, and have a pin to be horizontally through both matching parts, and the right-hand member of cylinder core bar 28 is porose; Match with screw thread spline core bar 27 left end smaller diameter end in the hole; Have one to sell the matching part that is horizontally through both, the threads engaged on the screw thread spline core bar 27 in threaded portion and the boring bar right-hand member hole, the splined section on the screw thread spline core bar 27 matches with spline housing 23; Splined section and contiguous position thereof have spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor 25 through shaft coupling 24.Many graduation marks can help to understand and check screw thread spline core bar 27 to move axially distance, help to understand and check the boring cutter radial motion distance that is attached thereto thus, promptly help to understand and check the taper hole aperture.
Two conical surface taperings of bipyramid face core bar 9 equate.
The system many places are provided with seal, to prevent oil liquid leakage.On swivel nut another one end face and swivel nut centre bore hole wall, be processed with cannelure, place blind nut seal 17, unsteady supporting sealing member 15 in the groove respectively, prevent oil liquid leakage.Both sides at boring cutter 10 bellmouths are processed with cannelure respectively, place seal 11 in the groove, anti-heads.One end of boring bar 7 is equipped with boring bar end cap 6, and boring bar end cap 6 end faces are offered cannelure, places seal 8 in the groove.Prevent draining.At cylinder core bar 28 cylindricals and boring bar 7 endoporus contact positions O-ring seals is installed.
Embodiment 2: as shown in Figure 6, the present invention is used for the deep hole lathe.
The power of special-purpose deep hole working machine feed motion is different with engine lathe; The engine lathe feeding power derives from main motor; The motor that special-purpose deep hole working machine drives scroll chuck is a main motor; The power of tool feeding motion usually is not from main motor, but from the feeding motor of a special use.Therefore; In the present embodiment, impulse generator links to each other with servomotor 25 through servomotor control device 31, links to each other with feeding motor 42 through feeding motor control assembly 41; Make the motion of feeding motor 42 coordinate mutually, guarantee that the tapering that processes meets the requirements with the motion of servomotor 25.
Claims (6)
1. taper deep hole boring device based on bipyramid face principle; Comprise boring bar (7), boring cutter (10), it is characterized in that: boring cutter (10) is installed in the axial centre of boring bar (7) and the radially all perforates, the radial hole of boring bar (10); Be provided with bipyramid face core bar (9) in the axial hole of boring bar (7); The tapering that the front end of bipyramid face core bar (9) is provided with two conical surface bodies, its two conical surfaces equates that also being equipped with on the boring bar (7) floats supports, and unsteady support comprises support bar (14), swivel nut (12) and spring (16); Swivel nut (12) is fixed in boring bar (7); Support bar (14) passes the hole at swivel nut (12) center, and support bar (14) bottom has annular protrusion, and spring (16) is installed between annular protrusion and the swivel nut (12); Support bar is processed with keyway on (14), and card has stop pin (13) in the keyway; Boring cutter has taper hole on (10), and the axis direction of taper hole is parallel to boring bar (7) axis direction,
The inner cone of described bipyramid face core bar (9) passes the taper hole of being offered on the boring cutter (10); The inner cone of bipyramid face core bar (9) and a side contacts of taper hole, opposite side separates, an end in contact of the rear cone of bipyramid face core bar (9) and support bar (14); The gradient of this end face of support bar (14) and the rear cone of bipyramid face core bar (9) are consistent; An other end of support bar (14) contacts with workpiece (2) bore area of boring, and the gradient of this end face of support bar (14) and the hole taper of workpiece are consistent, and unsteady support is provided with two; One of them unsteady axis of support and boring cutter parallel axes; And be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis, the another one axis of support of floating is vertical with boring cutter (10) axis antarafacial, and is positioned at the below of boring cutter (10);
Also be provided with cylinder core bar (28) and screw thread spline core bar (27) in the axial hole of boring bar (7); Bipyramid face core bar (9) and cylinder core bar (28), screw thread spline core bar (27) are coaxial; The rear end of bipyramid face core bar (9) is porose; Hole and cylinder core bar (28) front end minor diameter position match, and have a pin to be horizontally through both matching parts, and the rear end of cylinder core bar (28) is porose; Match with screw thread spline core bar (27) front end smaller diameter end in the hole; Have one to sell the matching part that is horizontally through both, the threads engaged behind last threaded portion of screw thread spline core bar (27) and the boring bar in the stomidium, the splined section on the screw thread spline core bar (27) matches with spline housing (23); Splined section and contiguous position thereof are provided with spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor (25) through shaft coupling (24);
Two long spiro nails (39) of symmetry are installed on the boring cutter (10); Two long spiro nails (39) pass the gathering sill of being offered on the boring bar (7); Link to each other with short screw (38) on being fixed in boring bar (7) through extension spring (40), gathering sill is along the length of the boring cutter axis direction diameter greater than long spiro nail
Boring bar (7) is gone up also, and perforate is equipped with industrial endoscope.
2. the taper deep hole boring device based on bipyramid face principle according to claim 1; It is characterized in that: be processed with two on described swivel nut (12) upper surface and can insert the complementary connecting hole that nipper plier is screwed into swivel nut (12) boring bar (7); On swivel nut (12) bottom surface and position that boring bar (7) contacts and all be processed with annular groove on swivel nut (12) the centre bore hole wall, place blind nut seal (17) and unsteady supporting sealing member (15) respectively in the annular groove of swivel nut (12) bottom surface and in the annular groove of swivel nut (12) centre bore hole wall.
3. the taper deep hole boring device based on bipyramid face principle according to claim 1 is characterized in that: the both sides at boring cutter (10) bellmouth are processed with cannelure respectively, place seal (11) in the groove.
4. the taper deep hole boring device based on bipyramid face principle according to claim 1, it is characterized in that: an end of boring bar (7) is equipped with boring bar end cap (6), and boring bar end cap (6) end face is offered cannelure, places seal (8) in the cannelure.
5. the taper deep hole boring device based on bipyramid face principle according to claim 1 is characterized in that: transparent sealing lid (35) is installed at the position of going up corresponding industrial endoscope (34) camera lens at boring bar (7).
6. the taper deep hole boring device based on bipyramid face principle according to claim 1 is characterized in that: at cylinder core bar (28) cylindrical and boring bar (7) endoporus contact position O-ring seals (22) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210099.9A CN102717108B (en) | 2012-06-25 | 2012-06-25 | Tapered deep-hole boring device based on double-cone principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210099.9A CN102717108B (en) | 2012-06-25 | 2012-06-25 | Tapered deep-hole boring device based on double-cone principle |
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| Publication Number | Publication Date |
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| CN102717108A true CN102717108A (en) | 2012-10-10 |
| CN102717108B CN102717108B (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210210099.9A Active CN102717108B (en) | 2012-06-25 | 2012-06-25 | Tapered deep-hole boring device based on double-cone principle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646700A (en) * | 2015-03-13 | 2015-05-27 | 德州三嘉机器制造有限公司 | Numerical control deep-hole grooving boring cutter |
| CN108453288A (en) * | 2018-05-29 | 2018-08-28 | 山东华宇工学院 | Numerical control taper deep hole drilling apparatus and technique |
| 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 |
| CN112974890A (en) * | 2019-12-16 | 2021-06-18 | 上海电气电站设备有限公司 | Deep hole molded line boring device |
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| CN1072874A (en) * | 1991-12-02 | 1993-06-09 | 国营五二六厂 | Long taper hole three sword boring (mill) cutting method and the devices thereof of high accuracy |
| CN2238690Y (en) * | 1995-12-22 | 1996-10-30 | 德州机床厂 | Digital control deep hole boring machine |
| CN201235407Y (en) * | 2008-08-06 | 2009-05-13 | 中船江南重工股份有限公司 | Super large deep taper hole machining special machine |
| CN201596799U (en) * | 2009-11-03 | 2010-10-06 | 宁波合力机泵有限公司 | Boring machine tool for processing taper holes |
| CN202824706U (en) * | 2012-06-25 | 2013-03-27 | 中北大学 | Tapered deep hole boring device based on double-conical-face principle |
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| CN1072874A (en) * | 1991-12-02 | 1993-06-09 | 国营五二六厂 | Long taper hole three sword boring (mill) cutting method and the devices thereof of high accuracy |
| CN2238690Y (en) * | 1995-12-22 | 1996-10-30 | 德州机床厂 | Digital control deep hole boring machine |
| CN201235407Y (en) * | 2008-08-06 | 2009-05-13 | 中船江南重工股份有限公司 | Super large deep taper hole machining special machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646700A (en) * | 2015-03-13 | 2015-05-27 | 德州三嘉机器制造有限公司 | Numerical control deep-hole grooving boring cutter |
| CN108453288A (en) * | 2018-05-29 | 2018-08-28 | 山东华宇工学院 | Numerical control taper deep hole drilling apparatus and technique |
| CN108453288B (en) * | 2018-05-29 | 2024-05-24 | 山东华宇工学院 | Numerical control taper deep hole machining device and process |
| 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 |
| CN112974890A (en) * | 2019-12-16 | 2021-06-18 | 上海电气电站设备有限公司 | Deep hole molded line boring device |
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| CN102717108B (en) | 2014-02-26 |
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