CN104646700B - Numerical control deep-hole grooving boring cutter - Google Patents
Numerical control deep-hole grooving boring cutter Download PDFInfo
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- CN104646700B CN104646700B CN201510110417.8A CN201510110417A CN104646700B CN 104646700 B CN104646700 B CN 104646700B CN 201510110417 A CN201510110417 A CN 201510110417A CN 104646700 B CN104646700 B CN 104646700B
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- boring
- grooving
- cutter
- hole
- head
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/22—Cutting tools with chip-breaking equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/12—Grooving
- B23B2220/123—Producing internal grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/12—Grooving
- B23B2220/126—Producing ring grooves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a numerical control deep-hole grooving boring cutter which consists of a boring head, a boring rod mechanism and a driving device, wherein the boring head and the boring rod mechanism are connected by adopting a rectangular thread; the boring rod mechanism and the driving device are connected by virtue of a bracket and a coupling; the boring head comprises a limiting plug, a boring head body, a grooving knife, paired angular contact bearings, a driving shaft and a square tool bit; the anchoring rod comprises a connecting shaft, a taper pin, an anchoring rod body and multiple sections of central spindles; and the driving device consists of a reducer and an alternating current servo motor. The device disclosed by the invention adopts a machining mode of rotating a workpiece without rotating the anchoring rod, has a radial feed structure and can be applied to a special numerical control deep-hole drilling and boring machine, so that controlled grooving in a deep hole is realized, or a space curved face and a conical surface are machined.
Description
Technical field
The present invention relates to special type knife technical field, and in particular to a kind of numerical control deep-hole grooving boring tool.
Background technology
Internal circular-grooves are usually used in the occasions such as circlip for hole, O-ring seal groove, be machinery plus part machining element it
One.Traditional adding method of internal circular-grooves is the Vehicle Processing on lathe or the boring processing on boring machine.Will repeatedly to knife, many during processing
Secondary turning, repeatedly measurement.Therefore, this processing method efficiency is very low, and production cost is high, and due to repeatedly to knife, multiple turning,
Repeatedly measurement, it cannot be guaranteed that the uniformity of accessory size during batch production.
Existing CNC deep-hole drilling ＆ boring machine can only process straight hole, and straight hole can be through hole, blind hole and shoulder hole, with technology
Development, it now is possible to the processing of taper hole is carried out on the basis of straight hole is processed, primarily directed to the deep hole machining of single cone hole, so
And there is not the processing unit (plant) of inner bore grooving.
Existing reducing boring cutter application is still immature, and usually mandrel axial movement realizes that boring cutter is radially walked by inclined-plane
Knife, the current this unilateral cutting-in of structure less, can only arrive 12mm, if using inclined for the unilateral cutting-in maximum of above-mentioned processing part
Though the unilateral cutting-in of the structure in heart hole can arrive 23.5mm, cutter is unable to self-locking, and radial feed is uneven by the soft or hard generation of workpiece material
Even feeding.Guide pad 2,5 is mounted with the both sides of grooving boring tool 3 as shown in Figure 1, positioning support is served to reducing boring cutter,
Ensure grooving cutter correct position.Mandrel 7 can only make axial movement can not be rotated, and be oriented by banking pin 6, and the front end of mandrel 7 has one
45 ° of inclined-planes, 45 ° of inclined-planes with the bottom of grooving cutter 3 coordinate, and 45 ° of inclined-planes ensure wear-resisting by Quenching Treatment.When mandrel 7 is axially moved
When dynamic, by 45 ° of inclined-planes by axial internal clearance 1：1 is converted to the amount of moving radially, so as to realizing radial feed grooving；When switching to
Start withdrawing during designated depth, the axle of mandrel 7 is moved back by, under the pulling of tension spring 4, two 45 ° of inclined-planes are contacted all the time, are cut
Groove knife gradually returns original position.The grooving boring tool 3 is connected with boring bar, and ball screw assembly, is housed behind boring bar, is driven by servomotor
Realize the axial movement of mandrel.Because the length of workpiece is about 6m, boring bar length is 10m, boring bar how long mandrel with regard to how long, cause
When overall elongated core bar holds out against, internal core bar meeting two is pressurized and produces bending, causes amount of movement to be forbidden, it is impossible to ensure groove depth
Size.As shown in Figure 2, core bar diameter phi 30mm, how long is length 10m, two axial thrust F=1000N, in this compression feelings
Under condition, core bar necessarily leads to bending as shown in double chain lines, causes cutting groove depth to be forbidden.
The content of the invention
The invention provides a kind of numerical control deep-hole grooving boring tool, inner bore grooving can not be carried out with solve prior art presence
Problem.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of numerical control deep-hole grooving boring tool, is made up of boring head, boring bar mechanism and drive device, and boring head is used with boring bar mechanism
Rectangular thread is connected, and boring bar mechanism is connected with drive device by support and shaft coupling, and boring head includes spacing stifled, boring head body, cuts
Groove knife, paired angular contact bearing, drive shaft and cubic cutter head, a guide pad, guide pad are disposed in the both sides of grooving cutter respectively
Positioning support is played to grooving cutter, it is ensured that the correct position of grooving cutter, grooving cutter and drive shaft pass through Archimedian screw disk
Connect as one, spacing stifled step surface and grooving cutter left surface coordinate, be provided with four square holes on boring head body, each face of four square holes with cut
The four sides of groove knife coordinates, and inclined-plane is set on boring head body, and guide pad is matched to ensure that radial dimension of adjustment, is set on boring head body
The hole coordinated with paired angular contact bearing is put, two paired angular contact bearing middle settings, one outer separator separates two bearings,
By nut check, it is ensured that the positioning of drive shaft, cubic cutter head is fastened on boring head body by screw；Boring bar mechanism includes connecting
Spindle, taper pin, boring bar and several sections of mandrels, mandrel are assembled up with boring bar by bearing, and boring bar is fixed, and mandrel can be rotated, number
Connected by taper pin between section mandrel；Drive device is made up of reductor and AC servo motor.
Above-mentioned grooving cutter surface sets chip-breaker.
The screw-button of above-mentioned grooving cutter is arranged far from the side of cubic cutter head, and the side near four directions cutter head does not have spiral
Button.
Numerical control deep-hole grooving boring tool operation principle of the invention is：The radial feed of boring head is by the core bar inside boring bar
Rotate to realize, and the rotation of core bar is that, by drive device control below, a whole set of component is fixed on boring bar fixed mount
On, planker band cutter realizes axial feed motion by AC Servo Motor Control.Numerical control deep-hole grooving boring tool device is by handing over
Flow servo motor drives reductor to rotate, so that band moving mandrel rotates, mandrel is rotated and drives Archimedian screw disc spins, is caused
Grooving cutter makees radial motion, and boring head is made up of Archimedian screw disc mechanism, and when the driving shaft rotates, Archimedian screw spirals
Turn, screw-button forces grooving cutter to make radial motion, drive claw to move a principle with scroll chuck, and can be with self-locking, A Ji
Mead screw-button radial pitch decile, motion homogeneous, boring bar is made up of internal rotatable mandrel, and boring bar is fixed on by bearing
Interior, mandrel is connected by several sections of by taper pin, and boring bar is still lengthened using rectangular thread connection, therefore, new boring bar can be with root
According to need do it is arbitrarily long, boring bar does not turn, mandrel rotate.So, radial feed, axial movement are by AC Servo Motor Control
The size of size, the processing drawing that can be provided according to user, writes a procedure, is input into digital control system, carries out two axles
Drive, order is sent by digital control system control AC servo motor, each groove to endoporus in order carries out grooving, whole processing
Process is automatically performed, and in order to ensure the uniformity of each part grooving depth, at speed reducer output shaft end 2 can be disposed to approach
Switch, controls the beginning and end of grooving, and specific method is that rotary motion is become into straight line axial displacement by screw-driven.Instead
To the adjustment in gap：Key, planetary reducer and spiral disc mechanism have backlass, it is necessary to grooving is all carried out electrically every time
Backlash compensation.For the adjustment of backlass, carried out after the device is assembled, Magnetic gauge stand is placed in awards oily device end first
On face, boring cutter body stretches out awards oily device head, and pointer is beaten and moves radially position in boring cutter；Then by digital control system programming Control boring
Knife radial displacement, such as first outer 2mm that moves eliminates backlass, and hand of dial number is transferred to 0, then outer shifting 2mm, then interior shifting 2mm, two after seeing
The changing value of secondary dial plate, the value is exactly the size of backlass.Electric clearance compensation is can be carried out after in-site measurement, feeding is watched
Taking motor has an interpolation electrical compensation to set, and the angle value or numerical value of the backlass need to be only input into digital control system i.e.
Can, a backlash Compensation of Half can be automatically carried out in each counter motion of three-pawl type boring cutter body, resultant error is eliminated.
The invention provides a kind of deep hole grooving boring tool device, the processing mode not turned using workpiece rotating boring bar is had
Radial feed structure, can be used on the automatic grooving realized on CNC deep-hole drilling ＆ boring machine in deep hole, and groove width is unrestricted, breaks and adds
The bottleneck of work straight hole, taper hole, for the user for having inner bore grooving provides facility, in particular for the king-sized situation of groove depth.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is prior art numerical control deep-hole grooving boring head structural representation；
Fig. 2 is the mandrel force diagram of prior art numerical control deep-hole grooving boring head；
Fig. 3 is the structural representation of apparatus of the present invention；
Fig. 4 is the structural representation of apparatus of the present invention boring head；
Fig. 5 is the structural representation of Section A-A in Fig. 4；
Fig. 6 is the structural representation of apparatus of the present invention boring bar；
Fig. 7 is the structural representation of apparatus of the present invention drive device.
1 boring head body, 2 guide pads, 3 grooving cutters, 4 extension springs, 5 guide pads, 6 banking pins, 7 mandrels, 8 spacing stifled, 9 guiding in figure
Block, 10 boring head bodies, 11 grooving cutters, 12 guide pads, 13 paired angular contact bearings, 14 nuts, 15 drive shafts, 16 cubic cutter heads, 17
Connecting shaft, 18 taper pins, 19 boring bars, 20 mandrels, 21 bearings, 22 reductors, 23 AC servo motors, 24 boring heads, 25 boring bar mechanisms,
26 drive devices.
Specific embodiment
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of numerical control deep-hole grooving boring tool, by boring head 24, the and of boring bar mechanism 25
Drive device 26 is constituted, and boring head 24 is connected with boring bar mechanism 25 using rectangular thread, and boring bar mechanism 25 passes through with drive device 26
Support and shaft coupling are connected, and boring head 24 includes spacing stifled 8, boring head body 10, grooving cutter 11, paired angular contact bearing 13, drive shaft
15 and cubic cutter head 16, guide pad 9 and guide pad 12, guide pad 9 and guide pad 12 pairs are disposed respectively in the both sides of grooving cutter 11
Grooving cutter 11 plays positioning support, it is ensured that the correct position of grooving cutter 11, and the surface of grooving cutter 11 sets chip-breaker, grooving cutter 11
Screw-button be arranged far from the side of cubic cutter head 16, the side near four directions cutter head 16 does not have screw-button, the He of grooving cutter 11
Drive shaft 15 is connected as one by Archimedian screw disk, and spacing stifled 8 step surface coordinates with the left surface of grooving cutter 11, boring head
Four square holes are provided with body 10, each face of four square holes coordinates with the four sides of grooving cutter 11, and 7 ° of inclined-planes, guide pad 9 are set on boring head body 10
It is matched with guide pad 12 to ensure that radial dimension of adjustment, set on boring head body 10 and the cooperation of paired angular contact bearing 13
Hole, two paired 13 middle settings of angular contact bearing, one outer separator separates two bearings, is locked by nut 14, it is ensured that drive
The positioning of moving axis 15, cubic cutter head 16 is fastened on boring head body 10 by screw, when can be with after 16 1 surface wears of cubic cutter head
Change another face and proceed processing, improve the service life of blade；Boring bar mechanism 25 include connecting shaft 17, taper pin 18,
Boring bar 19 and several sections of mandrels 20, mandrel 20 are assembled up with boring bar 19 by bearing 21, and boring bar 19 is fixed, and mandrel 20 can turn
It is dynamic, connected by taper pin 18 between several sections of mandrels 20；Drive device 26 is made up of reductor 22 and AC servo motor 23.
Numerical control deep-hole grooving boring tool operation principle of the invention is：The radial feed of boring head by boring bar mechanism inside
Core bar rotates to realize, and the rotation of core bar is that, by drive device control below, a whole set of component is fixed on boring bar and consolidates
Determine on frame, planker band cutter realizes axial feed motion by AC Servo Motor Control.Numerical control deep-hole grooving boring tool device leads to
The rotation of AC servo machinery driving reductor is crossed, so that band moving mandrel rotates, mandrel is rotated and drives Archimedian screw disc spins,
Grooving cutter is caused to make radial motion, boring head is made up of Archimedian screw disc mechanism, when the driving shaft rotates, Archimedian screw
Disc spins, screw-button forces grooving cutter to make radial motion, with scroll chuck drive claw move a principle, and can with self-locking,
Archimedian screw buckles radial pitch decile, and motion homogeneous, boring bar mechanism is made up of internal rotatable mandrel, is fixed by bearing
In boring bar, mandrel is connected by several sections of by taper pin, and boring bar is still lengthened using rectangular thread connection, therefore, new boring bar
What can be done as needed is arbitrarily long, and boring bar does not turn, mandrel is rotated.So, radial feed, axial movement are by AC servo electricity
Machine controls the size of size, the processing drawing that can be provided according to user, writes a procedure, is input into digital control system, enters
The axle of row two is driven, and order is sent by digital control system control AC servo motor, and each groove to endoporus in order carries out grooving, whole
Individual process is automatically performed, and in order to ensure the uniformity of each part grooving depth, can dispose 2 at speed reducer output shaft end
Individual proximity switch, controls the beginning and end of grooving, and specific method is that rotary motion is become into straight line axial direction by screw-driven
Displacement.The adjustment of backlass：Key, planetary reducer and spiral disc mechanism have backlass, it is necessary to every time grooving all
Carry out electric clearance compensation.For the adjustment of backlass, carried out after the device is assembled, be first placed in Magnetic gauge stand
Award on oily device end face, boring cutter body stretches out awards oily device head, and pointer is beaten and moves radially position in boring cutter；Then compiled by digital control system
Process control boring cutter radial displacement, such as first outer 2mm that moves eliminates backlass, and hand of dial number is transferred to 0, then outer shifting 2mm, then interior shifting
2mm, the changing value of dial plate twice after seeing, the value is exactly the size of backlass.Electric clearance is can be carried out after in-site measurement
Compensation, feed servo motor has an interpolation electrical compensation to set, and the angle of the backlass need to be only input into digital control system
Value or numerical value, a backlash Compensation of Half, resultant error can be automatically carried out in each counter motion of three-pawl type boring cutter body
Eliminate.
Claims (3)
1. a kind of numerical control deep-hole grooving boring tool, it is characterized in that be made up of boring head, boring bar mechanism and drive device, boring head and boring bar machine
Structure is connected using rectangular thread, and boring bar mechanism is connected with drive device by support and shaft coupling, and boring head includes spacing stifled, boring head
Body, grooving cutter, paired angular contact bearing, drive shaft and cubic cutter head, a guide pad is disposed in the both sides of grooving cutter respectively, is led
Positioning support is played to grooving cutter to block, it is ensured that the correct position of grooving cutter, grooving cutter and drive shaft pass through Archimedes's spiral shell
Capstan is connected as one, and spacing stifled step surface coordinates with grooving cutter left surface, and four square holes, each face of four square holes are provided with boring head body
Four sides with grooving cutter coordinates, and inclined-plane is set on boring head body, and guide pad is matched to ensure that radial dimension of adjustment, boring head body
It is upper setting with paired angular contact bearing coordinate hole, two one outer separators of paired angular contact bearing middle setting by two bearings every
Open, by nut check, it is ensured that the positioning of drive shaft, cubic cutter head is fastened on boring head body by screw；Boring bar mechanism bag
Connecting shaft, taper pin, boring bar and several sections of mandrels are included, mandrel is assembled up with boring bar by bearing, and boring bar is fixed, and mandrel can turn
It is dynamic, connected by taper pin between several sections of mandrels；Drive device is made up of reductor and AC servo motor.
2. numerical control deep-hole grooving boring tool according to claim 1, it is characterized in that grooving cutter surface sets chip-breaker.
3. numerical control deep-hole grooving boring tool according to claim 1, it is characterized in that the screw-button of grooving cutter is arranged far from four
The side of square cutter head, the side near four directions cutter head does not have screw-button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110417.8A CN104646700B (en) | 2015-03-13 | 2015-03-13 | Numerical control deep-hole grooving boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110417.8A CN104646700B (en) | 2015-03-13 | 2015-03-13 | Numerical control deep-hole grooving boring cutter |
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| Publication Number | Publication Date |
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| CN104646700A CN104646700A (en) | 2015-05-27 |
| CN104646700B true CN104646700B (en) | 2017-05-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827065B (en) * | 2015-06-03 | 2017-03-01 | 中船第九设计研究院工程有限公司 | A kind of multistation is combined boring bar |
| 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 |
| CN111822736A (en) * | 2020-08-15 | 2020-10-27 | 德州景美石油机械有限公司 | Adjustable boring cutter |
| CN114178564A (en) * | 2021-12-31 | 2022-03-15 | 四川普什宁江机床有限公司 | Deep hole reverse boring cutter for thin-wall pipe |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5960687A (en) * | 1990-08-14 | 1999-10-05 | Rohrberg; Roderick G. | High-precision cutting and boring mill |
| RU2035266C1 (en) * | 1992-11-02 | 1995-05-20 | Российский Университет Дружбы Народов | Boring tool |
| CN2832367Y (en) * | 2005-11-11 | 2006-11-01 | 潍柴动力股份有限公司 | Boring knife capable of radially cutting |
| CN201483000U (en) * | 2009-05-26 | 2010-05-26 | 长泰县海力机械制造有限公司 | Floating boring cutter |
| CN201613361U (en) * | 2009-11-26 | 2010-10-27 | 衡阳风顺车桥有限公司 | Inner hole grooving cutter |
| CN201931097U (en) * | 2010-11-24 | 2011-08-17 | 邵阳神风动力制造有限责任公司 | Combined boring cutter for groove cutting |
| CN102717108B (en) * | 2012-06-25 | 2014-02-26 | 中北大学 | Tapered deep-hole boring device based on double-cone principle |
| CN202763112U (en) * | 2012-09-20 | 2013-03-06 | 石家庄煤矿机械有限责任公司 | Drilling device for concentric polycyclic evenly distributed holes |
| CN204524297U (en) * | 2015-03-13 | 2015-08-05 | 德州三嘉机器制造有限公司 | Numerical control deep-hole grooving boring tool |
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2015
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