CN109590495B - intelligent guide bar type composite step boring cutter for processing bottom hole of camshaft - Google Patents
intelligent guide bar type composite step boring cutter for processing bottom hole of camshaft Download PDFInfo
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- CN109590495B CN109590495B CN201811498402.3A CN201811498402A CN109590495B CN 109590495 B CN109590495 B CN 109590495B CN 201811498402 A CN201811498402 A CN 201811498402A CN 109590495 B CN109590495 B CN 109590495B
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- boring
- guide bars
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- guide
- boring bar
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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
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
- B23B29/027—Steadies for boring bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
Abstract
The invention relates to a intelligent guide-bar type composite stepped boring tool for processing a bottom hole of a camshaft, which comprises a boring tool blade, a boring bar, guide bars, a telescopic column, pressure sensors, horizontal sensors, universal balls, electromagnetic positioning pins and a driving circuit, wherein the boring bar is of a cylindrical structure, the front end side surface of the boring bar is provided with at least two positioning tool grooves and is connected with the boring tool blade through the positioning tool grooves, the guide bars surround the axis of the boring bar and are coated outside the boring bar, the adjacent two guide bars are mutually connected through at least two telescopic rods, the universal balls are embedded in the rear end surfaces of the guide bars and abut against the outer surface of the boring bar, the outer surface of each guide bar is provided with horizontal sensors, and the front end surface and the rear end surface are provided with at least electromagnetic positioning pins.
Description
Technical Field
The invention relates to boring cutters, in particular to intelligent guide strip type composite step boring cutters for machining bottom holes of camshafts.
Background
At present, in the shaft hole processing of a camshaft, shaft holes are often processed through boring cutters, the shaft holes of the camshaft are often relatively small in diameter but relatively large in length, so that the boring bars of the boring cutters for processing the shaft holes of the camshaft are relatively weak in structural strength, the boring bars are prone to bending and sagging due to self weight of the boring bars and uneven stress of the boring cutters in processing operation, the boring bars are seriously affected in boring operation precision, meanwhile, the service life of the boring cutters is greatly affected, and for the problem, the boring bars of the boring cutters can be accurately monitored only by equipping or more bearing seats based on a traditional mechanical mechanism for the boring cutters, although the current method can achieve the purpose of improving the boring bar operation precision by means of fixed distance, the aspect cannot accurately monitor abnormal operation conditions such as the sagging and bending of the boring bars, and the like, and in addition, when the bearing limit of the boring bars is limited by means of , the defects of large installation and positioning difficulty and poor positioning of the boring bar are existed, and the contact surface of the boring bars is also seriously worn due to severe wear.
Therefore, in view of the current situation of , brand-new boring cutter structures are urgently needed to be developed so as to meet the requirements of practical use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides intelligent guide bar type composite stepped boring cutters for machining bottom holes of camshafts, which can effectively improve the structural strength and the positioning precision of a boring bar in the aspect of , avoid the defects that the service life of the boring bar and the working precision of boring operation are seriously influenced by the sagging and bending of the boring bar caused by the dead weight of the boring bar, the jumping of the boring bar caused by uneven stress of the boring cutter in boring operation and the like, and effectively detect abnormal operation states of sagging and flexible boring bar in the aspect of , thereby greatly improving the working precision of the boring bar in the boring operation of the camshafts and effectively avoiding the poor quality of the aperture and the coaxiality of shaft holes of the camshafts caused by sagging and flexible boring bar and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an intelligent guide bar type composite stepped boring tool for processing a bottom hole of a camshaft comprises boring tool blades, a boring bar, guide bars, telescopic columns, pressure sensors, a horizontal sensor, universal balls, electromagnetic positioning pins and a driving circuit, wherein the boring bar is of a cylindrical structure, the front end side surface of the boring bar is provided with at least two positioning tool grooves and is connected with the boring tool blades through the positioning tool grooves, each positioning tool groove is connected with boring tool blades, the rear end side surface of the boring bar is provided with at least two positioning sliding grooves, the positioning tool grooves and the positioning sliding grooves are uniformly distributed around the axis of the boring bar, at least three guide bars are arranged, the boring bar is coated outside the boring bar around the axis of the boring bar, two adjacent guide bars are connected with each other through at least two telescopic rods, the guide bars and the boring bar axis are distributed in parallel and are positioned outside the boring bar between the positioning tool grooves and the positioning sliding grooves, the telescopic columns and the guide bars are hinged with each other through a mechanism, the axes of the telescopic columns and the guide bars are embedded in the rear end surfaces of the guide bars, the guide bars and the guide bars, the transverse ends of the guide bars are connected with the electromagnetic positioning pins, the guide bars, the transverse ends of the guide bars, the guide bars and the electromagnetic positioning pins are embedded in the transverse ends of the guide bars, the guide bars are embedded in the guide bars, the.
And , the telescopic column is any of an electric telescopic column, a pneumatic telescopic column and a hydraulic telescopic column.
, the turntable mechanism is any of a two-dimensional turntable and a three-dimensional turntable driven by a servo motor, and the turntable mechanism is provided with at least angle sensors which are electrically connected with a driving circuit.
, each guide bar is provided with at least three universal balls, and the distance between two adjacent universal balls distributed along the axial direction of the guide bar is not more than 30% of the effective length of the boring bar.
, the effective length of the guide strip is 40% -90% of the effective length of the boring bar, and the midpoint of the guide strip is equal to the midpoint of the boring bar .
And , arranging a connecting rack on the outer surface of the guide strip, wherein the connecting rack and the guide strip are coaxially distributed.
, the driving circuit is a circuit system based on an industrial single chip microcomputer as a core, and the driving circuit is provided with at least data communication terminals and power connection terminals, and the data communication terminals and the power connection terminals are all embedded on the outer surface of the guide bar where the driving circuit is located.
The invention can effectively improve the structural strength and the positioning precision of the boring bar, avoid the defects that the service life of the boring bar and the working precision of boring operation are seriously influenced by the drooping and bending of the boring bar caused by the dead weight of the boring bar, the jumping of the boring bar caused by uneven stress of a boring cutter during boring operation and the like, and has high operation automation degree and detection precision, and can effectively realize the effective detection of abnormal working states of drooping, bending and the like of the boring bar, thereby greatly improving the working precision of the boring bar during the boring operation of the camshaft, and effectively avoiding the occurrence of poor quality of the aperture and the coaxiality of the shaft hole of the camshaft caused by the drooping, the bending and the like of the.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to make the technical means, the original characteristics, the achieved objects and the effects of the invention easily understood, the invention is further described in conjunction with the detailed description.
The intelligent guide-bar type composite stepped boring tool for processing the bottom hole of the camshaft as shown in fig. 1 comprises a boring tool blade 1, a boring bar 2, guide bars 3, telescopic columns 4, pressure sensors 5, a horizontal sensor 6, universal balls 7, electromagnetic positioning pins 8 and a driving circuit 9, wherein the boring bar 2 is of a cylindrical structure, the front end side surface of the boring bar is provided with at least two positioning tool grooves 10 and is connected with the boring tool blade 1 through the positioning tool grooves 10, each positioning tool groove 10 is connected with boring tool blades 1, the rear end side surface of the boring bar is provided with at least two positioning slide grooves 11, the positioning tool grooves 10 and the positioning slide grooves 11 are uniformly distributed around the axis of the boring bar 2, at least three guide bars 3 are coated outside the boring bar 2 around the axis of the boring bar 2, two adjacent guide bars 3 are connected with each other through at least two telescopic rods 4, the guide bars 3 and the boring bar 2 are distributed in parallel with the axis of the boring bar 2 and are positioned outside of the boring bar 2 at the boring bar 2 and are positioned between the positioning slide grooves 10 and the positioning slide grooves 11, the outer side surfaces of the boring bar 2, the boring bar 2 is hinged with each other through a turntable 12, the guide bar 4 and a plurality of the guide bars 3, the guide bars 3 are embedded in the outer surface of the boring bar 3, the guide bars 7 of the boring bar 3, the guide bars are embedded in the guide bar 3, the guide bars 7 of the guide bars 2 are embedded in the guide bars.
Wherein, the positioning cutter grooves 10 are uniformly distributed around the axis of the boring bar 2 or distributed in a spiral structure around the axis of the boring bar 2.
Meanwhile, the universal ball 7 and the guide bar 3 are connected with each other through at least springs 13.
The telescopic column 4 may be any kinds of electric telescopic column, pneumatic telescopic column and hydraulic telescopic column, the turntable mechanism 12 may be any kinds of servo motor driven two-dimensional turntable and three-dimensional turntable, and the turntable mechanism is provided with at least angle sensor 14, and the angle sensor 14 is electrically connected to the driving circuit 9.
It should be particularly noted that the guide strips 3 are any kinds of structures with rectangular, trapezoidal and oval cross sections, in the guide strips 3, each guide strip 3 is provided with at least three universal balls 7, the distance between two adjacent universal balls 7 distributed along the axial direction of the guide strip 3 is not more than 30% of the effective length of the boring bar 2, the effective length of the guide strip 3 is 40% -90% of the effective length of the boring bar 2, the midpoint of the guide strip 3 corresponds to the midpoint position of the boring bar 2, in addition, the outer surface of the guide strip 3 is provided with a connecting rack 15, and the connecting rack 15 and the guide strips 3 are coaxially distributed.
, the driving circuit 9 is a circuit system based on an industrial single chip microcomputer as a core, and the driving circuit is provided with at least data communication terminals 16 and power connection terminals 17, and the data communication terminals 16 and the power connection terminals 17 are embedded on the outer surface of the guide bar 3 where the driving circuit 9 is located.
In the specific implementation of the invention, firstly, according to the boring processing requirement, a boring cutter blade and a boring bar structure meeting the processing operation are selected, then the number and the length of the guide bars and the number and the structural parameters of the telescopic columns and the universal balls connected with the guide bars are determined according to the length and the diameter of the boring bar, and then the boring cutter blade, the boring bar, the guide bars, the telescopic columns, the pressure sensors, the horizontal sensors, the universal balls, the electromagnetic positioning pins and the driving circuit are assembled to complete the assembly of the invention.
When boring operation is carried out, the tail end of the assembled boring rod is connected with a driving shaft of a boring machine, the position between the boring rod and a shaft hole to be processed is adjusted, a boring cutter blade is abutted against the working surface of the shaft hole, finally, the driving circuit of the boring machine is electrically connected with the driving circuit of the boring machine, the assembly operation of the boring rod is completed, then the driving circuit drives the telescopic column to contract or extend to operate, the telescopic column is used for adjusting the relative position relation of the spaces between the guide bars and the boring rod, and the like, and the universal ball is used for carrying and positioning the outer surface of the boring rod, so that the integral mechanical strength of the boring rod is improved through the guide bar, the phenomena of severe boring cutter service life and processing precision, such as bending of the boring rod caused by the dead weight of the boring rod or uneven stress of the boring operation, are avoided, wherein when the position of the guide bar is adjusted, the guide bars are distributed in parallel with the horizontal plane through the horizontal sensor on the side, the pressure sensor is used for detecting the pressure of the universal ball on the guide bar and the outer surface of the boring rod, and the horizontal sensor, when the guide bar is not parallel with the bending pressure value, the bending pressure value of the guide bar is gradually increased, or the bending pressure value of the guide bar is detected by the horizontal sensor, and the bending pressure value of the horizontal sensor, the bending pressure sensor is determined separately, and the bending pressure of the bending pressure sensor, and the bending pressure of the boring rod, and the bending pressure sensor, and the bending pressure of the bending pressure sensor on the boring rod are determined separately, and the boring rod.
The invention can effectively improve the structural strength and the positioning precision of the boring bar, avoid the defects that the service life of the boring bar and the working precision of boring operation are seriously influenced by the drooping and bending of the boring bar caused by the dead weight of the boring bar, the jumping of the boring bar caused by uneven stress of a boring cutter during boring operation and the like, and has high operation automation degree and detection precision, and can effectively realize the effective detection of abnormal working states of drooping, bending and the like of the boring bar, thereby greatly improving the working precision of the boring bar during the boring operation of the camshaft, and effectively avoiding the occurrence of poor quality of the aperture and the coaxiality of the shaft hole of the camshaft caused by the drooping, the bending and the like of the.
It will be appreciated by persons skilled in the art that the present invention is not limited by the embodiments described above. The foregoing embodiments and description have been presented only to illustrate the principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention. Such variations and modifications are intended to be within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
- The intelligent guide bar type composite stepped boring tool for machining a bottom hole of a camshaft is characterized by comprising a boring tool blade, a boring bar, guide bars, telescopic columns, pressure sensors, horizontal sensors, universal balls, electromagnetic positioning pins and a driving circuit, wherein the boring bar is of a cylindrical structure, at least two positioning tool grooves are formed in the surface of the front end side of the boring bar and are connected with the boring tool blade through the positioning tool grooves, each positioning tool groove is connected with boring tool blades, at least two positioning sliding grooves are formed in the surface of the rear end side of the boring bar, the positioning tool grooves and the positioning sliding grooves are uniformly distributed around the axis of the boring bar, at least three guide bars surround the outer side of the boring bar, the guide bars are connected with each other through at least two telescopic rods, the guide bars and the boring bar are distributed in parallel with the axis of the boring bar and are positioned on the outer side of the boring bar, the telescopic columns and the guide bars are hinged to each other through a mechanism, the axes of the telescopic columns and the guide bars are in an angle of 30 degrees, the axes of the guide bars, the guide bars and the axes of the guide bars and the horizontal sensors are embedded in the outer surfaces of the boring bar, the guide bars, the end surfaces of the guide bars, the guide bars and the guide bars, the guide bars and the guide bars are embedded in the guide bars, the guide bars and the guide bars, the guide bars are embedded in the guide bars, the guide bars are embedded in the guide bars, the guide bars.
- 2. The kinds of intelligent guide strip type composite stepped boring cutter for machining bottom holes of camshafts is characterized in that the telescopic columns are any kinds of electric telescopic columns, pneumatic telescopic columns and hydraulic telescopic columns.
- 3. The kinds of intelligent guide-bar-type composite stepped boring cutter for machining bottom holes of camshafts is characterized in that the turntable mechanism is any kinds of servo-motor-driven two-dimensional turntable and three-dimensional turntable, at least angle sensors are arranged on the turntable mechanism, and the angle sensors are electrically connected with a driving circuit.
- 4. The kinds of intelligent guide bar type composite stepped boring tool for machining bottom holes of camshafts is characterized in that each guide bar is provided with at least three universal balls, and the distance between every two adjacent universal balls distributed along the axial direction of the guide bar is not more than 30% of the effective length of a boring bar.
- 5. The kinds of intelligent guide bar type composite stepped boring cutter for machining bottom holes of camshafts is characterized in that the effective length of the guide bar is 40% -90% of the effective length of the boring bar, and the midpoint of the guide bar is equal to % of the midpoint of the boring bar.
- 6. The kinds of intelligent guide bar type composite stepped boring tool for machining bottom holes of camshafts is characterized in that connecting racks are arranged on the outer surfaces of the guide bars and are coaxially distributed with the guide bars.
- 7. The kinds of intelligent guide bar type composite stepped boring cutter for machining bottom holes of camshafts is characterized in that the driving circuit is a circuit system based on an industrial single-chip microcomputer as a core, and is provided with at least data communication terminals and power connection terminals, wherein the data communication terminals and the power connection terminals are embedded in the outer surface of a guide bar where the driving circuit is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498402.3A CN109590495B (en) | 2018-12-08 | 2018-12-08 | intelligent guide bar type composite step boring cutter for processing bottom hole of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498402.3A CN109590495B (en) | 2018-12-08 | 2018-12-08 | intelligent guide bar type composite step boring cutter for processing bottom hole of camshaft |
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| Publication Number | Publication Date |
|---|---|
| CN109590495A CN109590495A (en) | 2019-04-09 |
| CN109590495B true CN109590495B (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811498402.3A Active CN109590495B (en) | 2018-12-08 | 2018-12-08 | intelligent guide bar type composite step boring cutter for processing bottom hole of camshaft |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1362871A (en) * | 1918-01-10 | 1920-12-21 | William E Kelly | Boring-bar |
| CN1058365A (en) * | 1990-07-25 | 1992-02-05 | 南京航空学院 | Be applicable to the measuring method of turning force of production scene |
| CN102149494B (en) * | 2008-09-02 | 2014-01-01 | 山特维克有限公司 | Material removal tool with actuated guide pads |
| CN202684121U (en) * | 2012-08-15 | 2013-01-23 | 厦门天机自动化有限公司 | Adjustable floating boring cutter assembly |
| WO2016165929A1 (en) * | 2015-04-17 | 2016-10-20 | Walter Ag | Boring device having centering means |
| CN104874823B (en) * | 2015-06-01 | 2017-05-10 | 南京理工大学 | Friction damping guide head |
| DE102016217239A1 (en) * | 2016-09-09 | 2018-03-15 | Gühring KG | CUTTING SUPPORT AND CUTTING TOOL WITH A CUTTING CARRIER |
| CN106825643B (en) * | 2017-04-17 | 2018-12-07 | 广西玉柴机器股份有限公司 | A kind of the conducting bar formula composite step boring cutter and method of machining cam axis bottom outlet |
| CN207888246U (en) * | 2018-01-24 | 2018-09-21 | 安徽省恒泰动力科技有限公司 | It is a kind of can online acquisition Tool in Cutting force signal fixture |
| CN208147059U (en) * | 2018-04-04 | 2018-11-27 | 南京博程数控齿轮设备有限责任公司 | A kind of gear-hobbing machine table mechanism |
| CN209094574U (en) * | 2018-12-08 | 2019-07-12 | 焦作大学 | A kind of intelligent conducting bar formula composite step boring cutter of machining cam axis bottom outlet |
-
2018
- 2018-12-08 CN CN201811498402.3A patent/CN109590495B/en active Active
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