CN102962734A - Opening grinding machine of hole-machining tool - Google Patents
Opening grinding machine of hole-machining tool Download PDFInfo
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- CN102962734A CN102962734A CN2012104531778A CN201210453177A CN102962734A CN 102962734 A CN102962734 A CN 102962734A CN 2012104531778 A CN2012104531778 A CN 2012104531778A CN 201210453177 A CN201210453177 A CN 201210453177A CN 102962734 A CN102962734 A CN 102962734A
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- shaft
- main shaft
- grinding machine
- emery wheel
- transmission shaft
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Abstract
The invention relates to an opening grinding machine of a hole-machining tool, wherein the opening grinding machine is used for machining openings of hole-machining tools such as twist drills, centre drills and screw taps. The opening grinding machine comprises a main shaft which is mounted on a fixed engine base, wherein the front end of the main shaft can clamp the hole-machining tool and is driven to rotate by power; a grinding wheel is arranged on one side in front of the main shaft; an acute angle is formed between a rotating shaft centre line of the grinding wheel and the rotating shaft centre line of the main shaft; the grinding wheel is mounted on a mobile seat which can move along a linear guide rail; the trend of the linear guide rail is vertical to the axial direction of the grinding wheel; a transmission shaft is also mounted on the fixed engine base; the main shaft drives the transmission shaft to rotate synchronously through a meshing gear; one end of the transmission shaft is hinged with one end of a connecting rod through an eccentric shaft; and the other end of the connecting rod is hinged on the mobile seat, so that the grinding wheel is periodically close to or far away the centre line of the main shaft. The opening grinding machine of the hole-machining tool is simple in structure, convenient to mount and debug, small in vibration during machining procedure, and small limit in specifications and length of machining workpieces.
Description
Technical field
The present invention relates to a kind of aperture knife tool opening grinding machine for the aperture knife tools such as fluted drill, centre drill, screw tap being carried out opening processing.
Background technology
The aperture knife tools such as fluted drill, centre drill, screw tap, its tip is separated out 2-4 main cutting edge by groove usually, for new fluted drill, screw tap or centre drill, not before the opening processing, its tip main cutting edge and thereafter knife face be positioned on the taper seat of a standard, this moment main cutting edge relief angle be 0, can't cut, therefore need to carry out sharpening to rear knife face, i.e. opening processing.Opening processing to the stock removal requirement of rear knife face is: from main cutting edge to rear knife face end, stock removal increases gradually, makes the profile of rear knife face depart from gradually initial taper seat, thereby forms relief angle.To this, existing opening grinding machine arranges the fixing emery wheel of a pivot usually, and cutter (such as fluted drill) clamping is had getting rid of in the mechanism of certain angle in an axle center and grinding wheel spindle, drive during the grinding wheel spindle rotation and get rid of a conical rotation of mechanism's do, adjust simultaneously the attitude of workpiece, rear knife face is carried out grinding.There is following defective in the equipment of this structure: 1, complex structure, high, the installation adjustment difficulty of required precision, get rid of the drive gears exposed in the mechanism, and be vulnerable to the erosion of emery wheel ash, smear metal, very easily wearing and tearing cause precision to reduce; 2, be not suitable for processing the workpiece of large specification, workpiece is larger, and clamping parts and drive disk assembly be corresponding increase also, and the vibration that centrifugal force produces in the rotary course is also larger, has affected the stability of process; 3, being not suitable for processing long workpiece, is to do conical rotation because workpiece adds man-hour, and long workpiece afterbody can interfere with other positions of lathe.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, installment and debugging convenient, the process vibration is little, the specification of processing work and length restricted little aperture knife tool opening grinding machine.
Aperture knife tool opening grinding machine of the present invention includes the main shaft that is installed on the fixed base, but front-end of spindle clamping hole process tool and rotated by power drive; Main shaft the place ahead one side is provided with the emery wheel that can carry out grinding to the rear knife face of aperture knife tool tip main cutting edge, have an acute angle angle between the shaft centerline of emery wheel and the shaft centerline of main shaft, emery wheel is installed on the Mobile base and by power set and drives rotation; Described Mobile base is placed on the line slideway and can moves along line slideway, and the trend of line slideway and grinding wheel spindle are to perpendicular; A power transmission shaft also is installed on the described fixed base, and main shaft drives the power transmission shaft synchronous rotary by pair of engaged gears; Power transmission shaft one end is hinged by an end of an eccentric shaft and a connecting rod, the other end of connecting rod is hinged on the Mobile base, make eccentric shaft, connecting rod and Mobile base consist of a slider-crank mechanism, drive Mobile base and move back and forth, make emery wheel periodically approach and leave spindle centerline.
Also be equipped with on the described Mobile base and can drive respectively axial feed mechanism and the depth-feed mechanism that emery wheel moves axially and moves radially.
The eccentric throw of the relative center transmission shaft of described eccentric shaft can be regulated.
Gearratio between described main shaft and the power transmission shaft is 1:2 to 1:4.
Meshing gear between described main shaft and the power transmission shaft is replaceable structure, conveniently to carry out the adjustment of gearratio.
Advantage applies of the present invention exists: 1, adopt workpiece to rotate around fixed center, the mode of emery wheel synchronous linear is processed, overall structure is simple, volume is little, manufacturing and easy to adjust, machining accuracy is high; 2, the stroke of action component is little in the process, vibrates littlely, and low, the process good stability of requirement of strength to parts can adapt to the processing of large-size workpiece; 3, because rotating center is fixed, its axial length can extend arbitrarily, and is unrestricted.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to profile stretch-out view;
Fig. 3 is that the B of Fig. 2 is to enlarged diagram.
The specific embodiment
As shown in the figure, this aperture knife tool opening grinding machine includes the main shaft 1 that is installed on the fixed base, but front-end of spindle clamping hole process tool and rotated by power drive; Main shaft 1 the place ahead one side is provided with the emery wheel 2 that can carry out to the rear knife face of aperture knife tool tip main cutting edge grinding, have an acute angle angle α between the shaft centerline of the shaft centerline of emery wheel 2 and main shaft 1, emery wheel 2 is installed on the Mobile base 3 and by power set and drives rotation; Described Mobile base 3 is placed on the line slideway 4 and can moves along line slideway, and the trend of line slideway 4 and emery wheel 2 are axially perpendicular; A power transmission shaft 5 also is installed on the described fixed base, and main shaft 1 drives power transmission shaft 5 synchronous rotaries by pair of engaged gears 6; Power transmission shaft 5 one ends are hinged by an end of an eccentric shaft 7 and a connecting rod 8, the other end of connecting rod 8 is hinged on the Mobile base 3, make eccentric shaft 7, connecting rod 8 and Mobile base 3 consist of a slider-crank mechanism, drive Mobile base 3 and move back and forth, make emery wheel 2 periodically approach and leave spindle centerline.In process, along with the rotation of workpiece, from the main cutting cutting edge, emery wheel is deeply rear knife face gradually, until the knife face grinding is finished after one, emery wheel leaves gradually to initial position again, the grinding of knife face after beginning is next.
Also be equipped with on the described Mobile base and can drive respectively axial feed mechanism 9 and the depth-feed mechanism 10 that emery wheel moves axially and moves radially.The axial feed of emery wheel and the effect of radial feed are: cooperating with the dressing tool (not providing among the figure) of certain position when carrying out crushing, be used for regulating trim amount and carry out feed in the dressing process.
The eccentric throw of the relative center transmission shaft of described eccentric shaft can be regulated, and can regulate the amplitude that emery wheel moves back and forth thus, and then regulates the stock removal of knife face behind the workpiece.
Gearratio between described main shaft and the power transmission shaft is 1:2 to 1:4.Wherein, the gearratio of 1:2 is applicable to have the fluted drill (knife face after this moment, the workpiece tip had two) of two grooves, and this moment main shaft and one week of workpiece rotating, power transmission shaft rotated for two weeks, and correspondingly emery wheel moves back and forth twice, and knife face after two is carried out grinding; And the gearratio of 1:4 is applicable to have the screw tap (knife face after this moment, the workpiece tip had four) of four grooves, and this moment main shaft and one week of workpiece rotating, power transmission shaft rotates four circles, and correspondingly emery wheel moves back and forth four times, and knife face after four is carried out grinding.Meshing gear between main shaft and the power transmission shaft is replaceable structure, conveniently to carry out the adjustment of gearratio.
Claims (4)
1. aperture knife tool opening grinding machine is characterized in that: include the main shaft (1) that is installed on the fixed base, but front-end of spindle clamping hole process tool and rotated by power drive; Main shaft (1) the place ahead one side is provided with the emery wheel (2) that can carry out to the rear knife face of aperture knife tool tip main cutting edge grinding, have an acute angle angle between the shaft centerline of the shaft centerline of emery wheel (2) and main shaft (1), emery wheel (2) is installed in a Mobile base (3) and upward and by power set drives rotation; Described Mobile base (3) is placed in a line slideway (4) upward and can moves along line slideway, and the trend of line slideway (4) and emery wheel (2) are axially perpendicular; A power transmission shaft (5) also is installed on the described fixed base, and main shaft (1) drives power transmission shaft (5) synchronous rotary by pair of engaged gears (6); Power transmission shaft (5) one ends are hinged with an end of a connecting rod (8) by an eccentric shaft (7), the other end of connecting rod (8) is hinged on the Mobile base (3), make eccentric shaft (7), connecting rod (8) and Mobile base (3) consist of a slider-crank mechanism, drive Mobile base (3) and move back and forth, make emery wheel (2) periodically approach and leave spindle centerline.
2. aperture knife tool opening grinding machine according to claim 1 is characterized in that: also be equipped with on the described Mobile base and can drive respectively axial feed mechanism (9) and the depth-feed mechanism (10) that emery wheel moves axially and moves radially.
3. aperture knife tool opening grinding machine according to claim 1 is characterized in that: described eccentric shaft (7) the relatively eccentric throw at power transmission shaft (5) center can be regulated.
4. aperture knife tool opening grinding machine according to claim 1, it is characterized in that: the gearratio between described main shaft (1) and the power transmission shaft (5) is 1:2 to 1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453177.8A CN102962734B (en) | 2012-11-13 | 2012-11-13 | Opening grinding machine of hole-machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453177.8A CN102962734B (en) | 2012-11-13 | 2012-11-13 | Opening grinding machine of hole-machining tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102962734A true CN102962734A (en) | 2013-03-13 |
| CN102962734B CN102962734B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210453177.8A Expired - Fee Related CN102962734B (en) | 2012-11-13 | 2012-11-13 | Opening grinding machine of hole-machining tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN102962734B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659473A (en) * | 2013-12-12 | 2014-03-26 | 江苏晶工工具有限公司 | Auger bit edge grinder |
| CN104647169A (en) * | 2015-02-06 | 2015-05-27 | 黎建军 | Numerical-control linked full-automatic skewed slot processing grinder |
| CN110064976A (en) * | 2019-04-29 | 2019-07-30 | 山东交通职业学院 | Spiral bit sharpening machine |
| CN110238715A (en) * | 2019-04-30 | 2019-09-17 | 镇江市永益工具有限公司 | A kind of dedicated milling drum of ultrahigh hardness drill bit processing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB938904A (en) * | 1960-10-18 | 1963-10-09 | Gleason Works | Improvements relating to cutter sharpening machines |
| GB1071220A (en) * | 1963-10-09 | 1967-06-07 | Hurth Masch Zahnrad Carl | Machine tool and method of using the same |
| BR7201733U (en) * | 1992-10-20 | 1994-04-26 | Milton Sperafico | Drill sharpening |
| JPH0743109U (en) * | 1990-12-15 | 1995-08-18 | 株式会社東亜機械製作所 | Drill grinding machine for thinning |
| CN1107091A (en) * | 1993-07-04 | 1995-08-23 | 袁庆民 | Grinding machine for twist drill and Ni zhifu drill |
| CN2785790Y (en) * | 2005-05-19 | 2006-06-07 | 蒋新科 | Multifunctional knife sharpener |
| CN202037490U (en) * | 2011-02-11 | 2011-11-16 | 天津市立鑫晟精细铸造有限公司 | Automatic cutter grinding device |
| CN202894903U (en) * | 2012-11-13 | 2013-04-24 | 丹阳市盛力机械有限公司 | Opening grinder for drilling tools |
-
2012
- 2012-11-13 CN CN201210453177.8A patent/CN102962734B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB938904A (en) * | 1960-10-18 | 1963-10-09 | Gleason Works | Improvements relating to cutter sharpening machines |
| GB1071220A (en) * | 1963-10-09 | 1967-06-07 | Hurth Masch Zahnrad Carl | Machine tool and method of using the same |
| JPH0743109U (en) * | 1990-12-15 | 1995-08-18 | 株式会社東亜機械製作所 | Drill grinding machine for thinning |
| BR7201733U (en) * | 1992-10-20 | 1994-04-26 | Milton Sperafico | Drill sharpening |
| CN1107091A (en) * | 1993-07-04 | 1995-08-23 | 袁庆民 | Grinding machine for twist drill and Ni zhifu drill |
| CN2785790Y (en) * | 2005-05-19 | 2006-06-07 | 蒋新科 | Multifunctional knife sharpener |
| CN202037490U (en) * | 2011-02-11 | 2011-11-16 | 天津市立鑫晟精细铸造有限公司 | Automatic cutter grinding device |
| CN202894903U (en) * | 2012-11-13 | 2013-04-24 | 丹阳市盛力机械有限公司 | Opening grinder for drilling tools |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659473A (en) * | 2013-12-12 | 2014-03-26 | 江苏晶工工具有限公司 | Auger bit edge grinder |
| CN104647169A (en) * | 2015-02-06 | 2015-05-27 | 黎建军 | Numerical-control linked full-automatic skewed slot processing grinder |
| CN110064976A (en) * | 2019-04-29 | 2019-07-30 | 山东交通职业学院 | Spiral bit sharpening machine |
| CN110064976B (en) * | 2019-04-29 | 2020-09-01 | 山东交通职业学院 | Twist drill sharpening machine |
| CN110238715A (en) * | 2019-04-30 | 2019-09-17 | 镇江市永益工具有限公司 | A kind of dedicated milling drum of ultrahigh hardness drill bit processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102962734B (en) | 2014-12-10 |
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