CN104646700A - Numerical control deep-hole grooving boring cutter - Google Patents
Numerical control deep-hole grooving boring cutter Download PDFInfo
- Publication number
- CN104646700A CN104646700A CN201510110417.8A CN201510110417A CN104646700A CN 104646700 A CN104646700 A CN 104646700A CN 201510110417 A CN201510110417 A CN 201510110417A CN 104646700 A CN104646700 A CN 104646700A
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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 and a driving device, wherein the boring head and the boring rod are connected by adopting a rectangular thread; the boring rod 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 numerical control deep-hole drilling and boring machine, so that automatic grooving in a deep hole is realized, the groove width is not limited, the bottleneck of machining straight holes and taper holes is broken through, and convenience is provided for a user who performs inner-hole slotting operation, particularly aiming at the condition that the groove depth is extremely large.
Description
Technical field
the present invention relates to special type knife technical field, be specifically related to a kind of numerical control deep-hole grooving boring tool.
Background technology
Internal circular-grooves is usually used in the occasion such as circlip for hole, O RunddichtringO groove, is one of machinery machining element adding part.Traditional adding method of internal circular-grooves is the Vehicle Processing on lathe or the processing of the boring on boring machine.Add man-hour will repeatedly tool setting, repeatedly turning, repetitive measurement.Therefore, this processing method efficiency is very low, and production cost is high, and due to repeatedly tool setting, repeatedly turning, repetitive measurement, can not ensure the uniformity of accessory size during batch production.
Existing CNC deep-hole drilling & boring machine can only process straight hole, straight hole can be through hole, blind hole and shoulder hole, along with the development of technology, can carry out now the processing of taper hole on the basis of processing straight hole, mainly for the deep hole machining of single cone hole, but but there is not the processing unit (plant) of inner bore grooving.
Existing reducing boring cutter application is still immature, be generally mandrel move axially rely on inclined-plane realize boring cutter radial feed, the monolateral cutting-in of current this structure is little, 12mm can only be arrived for the monolateral cutting-in of above-mentioned processing parts is maximum, though if adopt the monolateral cutting-in of structure of eccentric orfice to arrive 23.5mm, but cutter can not self-locking, radial feed produces staggered feed by workpiece material soft or hard.Be mounted with guide pad 2,5 in the both sides of grooving boring tool 3 as shown in Figure 1, positioning support effect is play to reducing boring cutter, ensure grooving cutter tram.Mandrel 7 can only move axially and can not rotate, and directed by banking pin 6, there are 45 ° of inclined-planes mandrel 7 front end, coordinates with 45 ° of inclined-planes of grooving cutter 3 bottom, and 45 ° of inclined-planes ensure wear-resisting through Quenching Treatment.When mandrel 7 moves axially, by 45 ° of inclined-planes axial internal clearance 1:1 is converted to the amount of moving radially, thus realizes radial feed grooving; Start withdrawing when switching to designated depth, move after mandrel 7 is axial, under the pulling of tension spring 4, two 45 ° of inclined-planes contact all the time, and grooving cutter returns original position gradually.This grooving boring tool 3 is connected with boring bar, after boring bar, ball screw assembly, is housed, and realizes moving axially of mandrel by driven by servomotor.Because the length of workpiece is about 6m, boring bar length is 10m, and how long mandrel is with regard to how long for boring bar, and when causing overall elongated core bar to hold out against, inner core bar can produce bending by two pressurized, causes amount of movement to be forbidden, cannot ensure groove depth size.As shown in Figure 2, core bar diameter phi 30mm, length 10m how long, two axial thrust F=1000N, and in this pressurized situation, core bar certainly leads to bending as shown in two chain line, causes cutting groove depth to be forbidden.
Summary of the invention
The invention provides a kind of numerical control deep-hole grooving boring tool, to solve the problem can not carrying out inner bore grooving that prior art exists.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of numerical control deep-hole grooving boring tool, by boring head, boring bar and drive unit composition, boring head and boring bar adopt rectangular thread to be connected, boring bar is connected by support and shaft coupling with drive unit, boring head comprises spacing stifled, boring head body, grooving cutter, diagonally contact bearing, driving shaft and cubic cutter head, a guide pad is settled respectively in the both sides of grooving cutter, guide pad plays positioning support effect to grooving cutter, ensure the tram of grooving cutter, grooving cutter and driving shaft are connected as one by Archimedian screw dish, spacing stifled step surface coordinates with grooving cutter left surface, boring head body has four square holes, each of four square holes coordinate with the four sides of grooving cutter, boring head body arranges inclined-plane, guide pad coordinates with it the adjustment that ensure that radial dimension, boring head body is arranged the hole coordinated with diagonally contact bearing, two diagonally arrange an outer separator in the middle of contact bearing and two bearings are separated, pass through nut check, ensure that the location of driving shaft, four directions cutter head by screw fastening on boring head body, boring bar comprises connecting axle, taper pin, boring bar and several sections of mandrel, and mandrel and boring bar are got up by bearing assemble, and boring bar is fixed, and mandrel can rotate, and is connected between several sections of mandrel by taper pin, drive unit is made up of reductor and AC servo motor.
Above-mentioned grooving cutter surface arranges chip-breaker.
The screw-button of above-mentioned grooving cutter is arranged on the side away from cubic cutter head, does not have screw-button near the side of cubic cutter head.
Numerical control deep-hole grooving boring tool operation principle of the present invention is: the radial feed of boring head relies on the core bar of boring bar inside to rotate to realize, and the rotation of core bar relies on drive unit below to control, a whole set of assembly is fixed on boring bar fixed mount, and planker carry its tools realizes axial feed motion by AC Servo Motor Control.Numerical control deep-hole grooving boring tool device is rotated by AC servo machinery driving reductor, thus band moving mandrel rotates, mandrel rotates and drives Archimedian screw disc spins, grooving cutter is caused to do 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 do radial motion, claw is driven to move a principle with scroll chuck, and can self-locking, radial pitch decile buckled by Archimedian screw, motion homogeneous, boring bar is made up of the rotatable mandrel in inside, be fixed in boring bar by bearing, mandrel is connected by taper pin by several sections of, boring bar still adopts rectangular thread to connect and lengthens, therefore, any length that novel boring bar can do as required, boring bar does not turn, mandrel rotates.Like this, radial feed, move axially the size by AC Servo Motor Control size, the processing drawing that can provide according to user, write a procedure, input digital control system, carry out diaxon driving, control AC servo motor by digital control system to give an order, sequenced grooving is carried out to each groove of endoporus, whole process completes automatically, in order to ensure the uniformity of each part grooving depth, 2 proximity switches can be settled at speed reducer output shaft end, control starting point and the terminal of grooving, concrete grammar is that rotary motion is become straight line axial displacement by screw-driven.The adjustment of backlass: all there are backlass in key, planetary reducer and helical disk mechanism, needs each grooving all to carry out electric clearance compensation.For the adjustment of backlass, carry out after this device assembles, be first placed in by Magnetic gauge stand and award on oily device end face, boring cutter body stretches out awards oily device head, and pointer is beaten and moved radially position at boring cutter; Then by the radial displacement of digital control system programming Control boring cutter, as first the outer 2mm that moves eliminates backlass, hand of dial number is transferred to 0, then moves 2mm outward, then in move 2mm, the changing value of twice dial plate after seeing, this value is exactly the size of backlass.Just electric clearance compensation can be carried out after in-site measurement, feed servo motor has an interpolation electrical compensation to arrange, angle value or the numerical value of this backlass only need be inputted in digital control system, all can automatically carry out a backlash Compensation of Half 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, adopt the processing mode that workpiece rotating boring bar does not turn, there is radial feed structure, can be used on automatic grooving CNC deep-hole drilling & boring machine achieved in deep hole, groove width is unrestricted, breaking the bottleneck of processing straight hole, taper hole, providing convenient, especially for the king-sized situation of groove depth for there being the user of inner bore grooving.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
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 in A-A cross section 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 unit.
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 guide pads, 10 boring head bodies, 11 grooving cutters, 12 guide pads, 13 diagonally contact bearing, 14 nuts, 15 driving shafts, 16 cubic cutter heads, 17 connecting axles, 18 taper pins, 19 boring bars, 20 mandrels, 21 bearings, 22 reductors, 23 AC servo motors, 24 boring heads, 25 boring bars, 26 drive units in figure.
Detailed description of the invention
As Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6 and Fig. 7, a kind of numerical control deep-hole grooving boring tool, by boring head 24, boring bar 25 and drive unit 26 form, boring head 24 adopts rectangular thread to be connected with boring bar 25, boring bar 25 is connected by support and shaft coupling with drive unit 26, boring head 24 comprises spacing stifled 8, boring head body 10, grooving cutter 11, diagonally contact bearing 13, driving shaft 15 and cubic cutter head 16, guide pad 9 and guide pad 12 is settled respectively in the both sides of grooving cutter 11, guide pad 9 and guide pad 12 pairs of grooving cutters 11 play positioning support effect, ensure the tram of grooving cutter 11, grooving cutter 11 surface arranges chip-breaker, the screw-button of grooving cutter 11 is arranged on the side away from cubic cutter head 16, screw-button is not had near the side of cubic cutter head 16, grooving cutter 11 and driving shaft 15 are connected as one by Archimedian screw dish, the spacing step surface of stifled 8 coordinates with grooving cutter 11 left surface, boring head body 10 has four square holes, each of four square holes coordinate with the four sides of grooving cutter 11, boring head body 10 is arranged 7 ° of inclined-planes, guide pad 9 and guide pad 12 coordinate with it the adjustment that ensure that radial dimension, boring head body 10 is arranged the hole coordinated with diagonally contact bearing 13, two diagonally arrange an outer separator in the middle of contact bearing 13 and two bearings are separated, locked by nut 14, ensure that the location of driving shaft 15, four directions cutter head 16 by screw fastening on boring head body 10, processing is proceeded when another face can be changed after cubic cutter head 16 1 surface wears, improve the service life of blade, boring bar 25 comprises connecting axle 17, taper pin 18, boring bar 19 and several sections of mandrel 20, and mandrel 20 and boring bar 19 are assembled up by bearing 21, and boring bar 19 is fixed, and mandrel 20 can rotate, and is connected between several sections of mandrel 20 by taper pin 18, drive unit 26 is made up of reductor 22 and AC servo motor 23.
Numerical control deep-hole grooving boring tool operation principle of the present invention is: the radial feed of boring head relies on the core bar of boring bar inside to rotate to realize, and the rotation of core bar relies on drive unit below to control, a whole set of assembly is fixed on boring bar fixed mount, and planker carry its tools realizes axial feed motion by AC Servo Motor Control.Numerical control deep-hole grooving boring tool device is rotated by AC servo machinery driving reductor, thus band moving mandrel rotates, mandrel rotates and drives Archimedian screw disc spins, grooving cutter is caused to do 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 do radial motion, claw is driven to move a principle with scroll chuck, and can self-locking, radial pitch decile buckled by Archimedian screw, motion homogeneous, boring bar is made up of the rotatable mandrel in inside, be fixed in boring bar by bearing, mandrel is connected by taper pin by several sections of, boring bar still adopts rectangular thread to connect and lengthens, therefore, any length that novel boring bar can do as required, boring bar does not turn, mandrel rotates.Like this, radial feed, move axially the size by AC Servo Motor Control size, the processing drawing that can provide according to user, write a procedure, input digital control system, carry out diaxon driving, control AC servo motor by digital control system to give an order, sequenced grooving is carried out to each groove of endoporus, whole process completes automatically, in order to ensure the uniformity of each part grooving depth, 2 proximity switches can be settled at speed reducer output shaft end, control starting point and the terminal of grooving, concrete grammar is that rotary motion is become straight line axial displacement by screw-driven.The adjustment of backlass: all there are backlass in key, planetary reducer and helical disk mechanism, needs each grooving all to carry out electric clearance compensation.For the adjustment of backlass, carry out after this device assembles, be first placed in by Magnetic gauge stand and award on oily device end face, boring cutter body stretches out awards oily device head, and pointer is beaten and moved radially position at boring cutter; Then by the radial displacement of digital control system programming Control boring cutter, as first the outer 2mm that moves eliminates backlass, hand of dial number is transferred to 0, then moves 2mm outward, then in move 2mm, the changing value of twice dial plate after seeing, this value is exactly the size of backlass.Just electric clearance compensation can be carried out after in-site measurement, feed servo motor has an interpolation electrical compensation to arrange, angle value or the numerical value of this backlass only need be inputted in digital control system, all can automatically carry out a backlash Compensation of Half in each counter motion of three-pawl type boring cutter body, resultant error is eliminated.
Claims (3)
1. a numerical control deep-hole grooving boring tool, it is characterized in that by boring head, boring bar and drive unit composition, boring head and boring bar adopt rectangular thread to be connected, boring bar is connected by support and shaft coupling with drive unit, boring head comprises spacing stifled, boring head body, grooving cutter, diagonally contact bearing, driving shaft and cubic cutter head, a guide pad is settled respectively in the both sides of grooving cutter, guide pad plays positioning support effect to grooving cutter, ensure the tram of grooving cutter, grooving cutter and driving shaft are connected as one by Archimedian screw dish, spacing stifled step surface coordinates with grooving cutter left surface, boring head body has four square holes, each of four square holes coordinate with the four sides of grooving cutter, boring head body arranges inclined-plane, guide pad coordinates with it the adjustment that ensure that radial dimension, boring head body is arranged the hole coordinated with diagonally contact bearing, two diagonally arrange an outer separator in the middle of contact bearing and two bearings are separated, pass through nut check, ensure that the location of driving shaft, four directions cutter head by screw fastening on boring head body, boring bar comprises connecting axle, taper pin, boring bar and several sections of mandrel, and mandrel and boring bar are got up by bearing assemble, and boring bar is fixed, and mandrel can rotate, and is connected between several sections of mandrel by taper pin, drive unit is made up of reductor and AC servo motor.
2. numerical control deep-hole grooving boring tool according to claim 1, is characterized in that grooving cutter surface arranges chip-breaker.
3. numerical control deep-hole grooving boring tool according to claim 1, is characterized in that the screw-button of grooving cutter is arranged on the side away from cubic cutter head, does not have screw-button near the side of cubic cutter head.
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 |
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| 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 true CN104646700A (en) | 2015-05-27 |
| CN104646700B CN104646700B (en) | 2017-05-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827065A (en) * | 2015-06-03 | 2015-08-12 | 中船第九设计研究院工程有限公司 | Multi-station combined boring bar |
| 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 |
| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827065A (en) * | 2015-06-03 | 2015-08-12 | 中船第九设计研究院工程有限公司 | Multi-station combined boring bar |
| 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 |
| 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 |
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|---|---|
| CN104646700B (en) | 2017-05-24 |
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