CN101890527A - Processing method and processing device of ring slot in non-centrosymmetric workpiece - Google Patents
Processing method and processing device of ring slot in non-centrosymmetric workpiece Download PDFInfo
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- CN101890527A CN101890527A CN 201010215608 CN201010215608A CN101890527A CN 101890527 A CN101890527 A CN 101890527A CN 201010215608 CN201010215608 CN 201010215608 CN 201010215608 A CN201010215608 A CN 201010215608A CN 101890527 A CN101890527 A CN 101890527A
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Abstract
The invention discloses a processing method and a processing device of a ring slot in a non-centrosymmetric workpiece. The processing method comprises the following steps: the workpiece is fixed; a cutter rod shaft is installed in an eccentric cutter rod sleeve so that the cutter rod shaft rotates in the eccentric cutter rod sleeve while the eccentric cutter rod sleeve rotates to drive the cutter rod shaft to revolve; the period turn of the eccentric cutter rod sleeve is one turn more than the period turn N of the cutter rod shaft; and by using the turn difference, the cutter rod shaft generates a radial displacement while rotating, thereby achieving automatic feed and retract. In the invention, the mode of workpiece fixing without rotation and cutter rotating are used, and the period turn difference is utilized to achieve non-numerical controlled automatic feed and retract in a period; a mechanical structure is used for solving the problems of low efficiency and poor quality in processing a piston retainer ring groove and greatly reducing equipment cost; and the method is used for processing the piston retainer ring groove and the ring slots in the other non-centrosymmetric workpieces.
Description
Technical field
What the present invention relates to is mechanical field, is the processing of inner groove in a kind of non-centrosymmetry workpiece specifically.
Background technology
At present, the processing of piston ring washer groove mainly contains turning method and milling method.
Turning method: as shown in Figure 1, generally adopt the back and forth method for turning of advance and retreat of workpiece 1 (piston) rotation, knife bar 2.Adopt turning method machining piston circlip groove, the subject matter of existence is: (1) because piston belongs to the non-centrosymmetry part, the workpiece rotation is uneven, and the bottom land axiality is poor; (2) the collet 3 clamping difficulties of installation workpiece, working (machining) efficiency is low.
The milling method: as shown in Figure 2, adopt workpiece 1 fixing individually, knife bar 2 also needs to do the milling method of circular revolution n2 except that rotation n1.Knife bar 2 revolution must be determined by numerical control program.Adopt milling method machining piston circlip groove, the subject matter of existence is: adopt numerical control machining center, equipment cost height, working (machining) efficiency are low.
Summary of the invention
At present piston ring washer groove processing method above shortcomings, the object of the present invention is to provide a kind of processing method of novel non-centrosymmetry workpiece inner groove, this method can improve the working (machining) efficiency of non-centrosymmetry workpiece inner grooves such as piston ring washer groove.
The present invention adopts following technical scheme: a kind of processing method of non-centrosymmetry workpiece inner groove, it is characterized in that it being that workpiece is fixed, cutter spindle is installed in the eccentric knife bar cover, when making cutter spindle in eccentric knife bar cover, do rotation, eccentric knife bar cover also rotation is center of circle revolution to drive cutter spindle with the axle center of eccentric knife bar cover, the cycle revolution N many one of the cycle ratio of revolutions cutter spindle of eccentric knife bar cover changes, utilize revolution official post cutter spindle when rotating, to produce radial displacement, thereby realize automatic tool advancing and retracting.
In the present invention, revolution is meant the cycle: that design is determined, count N at the revolution of a working cycles inner main axis (cutter spindle).
The present invention also provides a kind of non-centrosymmetry workpiece inner groove processing unit (plant) such as piston ring washer groove that can be used for, and comprises cutter spindle and eccentric knife bar cover of mounting cutter, and described cutter spindle is installed in the eccentric pivot hole of described eccentric knife bar cover; Also comprise by motor-driven differential mechanism, the described cutter spindle of the defeated connection of the master of differential mechanism, the pair output of differential mechanism connects described eccentric knife bar cover, and the cycle revolution N many that the cycle ratio of revolutions master of the secondary output of differential mechanism exports changes.
Described differential mechanism comprises the main shaft as described main output, described cutter spindle connects with described main shaft by universal drive shaft or flexible axle, master gear also is installed on the described main shaft, described eccentric knife bar puts output gear is installed, described output gear connects with described eccentric knife bar cover as pair output, has the travelling gear engagement to form differential gear between described master gear and the output gear.
Described travelling gear is coaxial bidentate wheel.
Described differential mechanism comprises a housing, and described gear is positioned at housing, and housing also is equipped with workpiece positioning table and pin-and-hole fixed cover outward.
Because differential mechanism is by motor-driven, can be handling for what improve the advance and retreat cutter to avoid the influence of cutter spindle inertia rotation, also comprise the automaton that is used to control cutter spindle cycle revolution, can control the cycle revolution of motor, realize automatic control with control circuit.The present invention also provides mechanical type cycle revolution controlling organization accurately and reliably a kind of and simple in structure, comprise the speed change system that worm screw on the motor output shaft and corresponding worm gear are formed, a described worm gear and a coaxial installation of cam, cam is corresponding to the switch of motor, and worm gear and worm-gear drive ratio are N.
The present invention adopts that workpiece fixing does not rotate, the cutter rotation, and the cycle revolution difference of utilization can be implemented in non-numerical control autofeed and withdrawing in the one-period, adopt frame for movement both can solve low, the ropy problem of piston stopper groove working (machining) efficiency, can greatly reduce equipment cost again, except that the processing that can be used for piston ring washer groove, also can be used for the processing of other non-centrosymmetry workpiece inner groove.
Description of drawings
Fig. 1 is existing turning method machining piston ring washer groove schematic diagram.
Fig. 2 is existing milling method machining piston ring washer groove schematic diagram.
Fig. 3 is the process principle schematic diagram of piston ring washer groove of the present invention.
Fig. 4 puts schematic diagram for cutter spindle 0 transposition.
Fig. 5 puts schematic diagram for cutter spindle N/4 transposition.
Fig. 6 puts schematic diagram for cutter spindle N/2 transposition.
Fig. 7 puts schematic diagram for cutter spindle 3N/4 transposition.
Fig. 8 is the principle schematic of piston ring washer grooving apparatus of the present invention.
Fig. 9 is the principle schematic of cycle revolution controlling organization.
Among the figure: 1, workpiece, 2, cutter spindle, 3, collet, 4, eccentric knife bar cover, 5, differential mechanism, 6, the cycle number rotaring controller, 7, motor
51, housing, 52, main shaft, 53, gear, 54, shaft coupling, 55, gear, 56, gear, 57, gear, 58, the workpiece fixed station, 59, the pin-and-hole fixed cover
61, worm screw, 62, worm gear, 63, cam, 64, push rod, 65, switch.
The specific embodiment
Below by specific embodiment the present invention is described in further detail, to help understanding content of the present invention.
Embodiment 1 processing unit (plant)
As shown in Figure 8, be a kind of special apparatus for working that can be used in the inner groove (as piston ring washer groove) of non-centrosymmetry workpiece such as piston.Comprise cutter spindle 2 and an eccentric knife bar cover 4 of mounting cutter, extremely shown in Figure 8 in conjunction with Fig. 3 simultaneously, cutter spindle 2 is installed in the eccentric pivot hole of eccentric knife bar cover 4.Also comprise the differential mechanism 5 that is driven by motor 7, the main output of differential mechanism 5 connects cutter spindle 2 to drive cutter spindle, the pair output of differential mechanism connects eccentric knife bar cover 4, the cycle revolution N many one of the cycle ratio of revolutions master output of the secondary output of differential mechanism changes, as shown in Figure 3 promptly in a working cycles, the revolution of cutter spindle is N, and the revolution of lateral deviation heart knife bar cover is N+1 (N is a natural number, is determined by design).
Differential mechanism comprises a housing 51, and gear 53,55,56,57 is positioned at housing 51.For ease of fixing of workpiece, housing 51 outer workpiece positioning table 58 and the pin-and-hole fixed covers 59 that place work piece also is installed, eccentric knife bar cover is positioned at pin-and-hole fixed cover 59.
Cycle revolution automaton 6 also adopts frame for movement, in conjunction with Fig. 8 and shown in Figure 9, comprise the speed change system that the worm screw that is installed on motor 7 output shafts (or main shaft 52) 61 and corresponding worm gear 62 are formed, worm gear 62 and worm screw 61 gearratios equal the cycle revolution N of cutter spindle, worm gear 62 and the 63 coaxial installations of a cam, cam 63 is corresponding to the switch 65 of motor, directly gauge tap 65, also can be as shown in Figure 9 by the switch 65 of switch push rod 64 with the control motor, when motor 7 (being main shaft) rotates to the N circle, cam 63 is rotation 1 circle just, by cam follower 64 disable motor switches 65.Motor should be selected the brake type motor for use, can brake during outage, rotates to eliminate inertia, thereby guarantees that cycle revolution N is constant.
With machining piston ring washer groove is example explanation processing method,
As shown in Figure 3 and Figure 4, be that cutter spindle and eccentric knife bar are enclosed within 0 initial position that changes.
Asymmetric workpiece such as fixed piston does not change, cutter spindle 2 is installed in the eccentric knife bar cover 4, make cutter spindle 2 in eccentric knife bar cover 4, do rotation simultaneously, it is center of circle revolution to drive cutter spindle 2 with the center of eccentric knife bar cover that eccentric knife bar overlaps 4 rotations, the cycle revolution N of cutter spindle, the cycle revolution of eccentric knife bar cover is N+1, utilizes revolution official post cutter spindle 2 to produce radial displacement when rotating, displacement is e, thereby realizes automatic tool advancing and retracting.
The residing position of cutter spindle as shown in Figure 5 when cutter spindle rotated the N/4 commentaries on classics.
The residing position of cutter spindle as shown in Figure 6 when cutter spindle rotated the N/2 commentaries on classics.
The residing position of cutter spindle as shown in Figure 7 when cutter spindle rotated the 3N/4 commentaries on classics.
By Fig. 4 to Fig. 7 as can be seen, cutter spindle 2 automatic radial displacements have realized automatic tool advancing and retracting in each fabrication cycles process, and displacement is 2 times of eccentric distance e of cutter spindle and eccentric knife bar cover.
The present invention with pin-and-hole location, workpiece fix, cutter rotate, adopts eccentric differential principle realization automatic tool advancing and retracting, has that processing cost is low, efficient is high, the measured advantage of matter.
Claims (10)
1. the processing method of a non-centrosymmetry workpiece inner groove, it is characterized in that it being that workpiece is fixed, cutter spindle is installed in the eccentric knife bar cover, make cutter spindle in eccentric knife bar cover, do rotation simultaneously, the rotation of eccentric knife bar cover is to drive the cutter spindle revolution, the cycle revolution N many one of the cycle ratio of revolutions cutter spindle of eccentric knife bar cover changes, and utilizes revolution official post cutter spindle to produce radial displacement when rotating, thereby realizes automatic tool advancing and retracting.
2. processing method as claimed in claim 1 is characterized in that: described non-centrosymmetry workpiece inner groove is the ring washer groove of piston.
3. non-centrosymmetry workpiece inner groove processing unit (plant) is characterized in that: comprise cutter spindle and an eccentric knife bar cover of mounting cutter, described cutter spindle is installed in the eccentric pivot hole of described eccentric knife bar cover; Comprise also that by motor-driven differential mechanism the main output of differential mechanism connects described cutter spindle, the pair output of differential mechanism connects described eccentric knife bar cover, and the cycle revolution N many of the cycle ratio of revolutions master output of the secondary output of differential mechanism changes.
4. processing unit (plant) as claimed in claim 3, it is characterized in that: described differential mechanism comprises the main shaft as described main output, described cutter spindle connects with described main shaft by universal drive shaft or flexible axle, master gear also is installed on the described main shaft, described eccentric knife bar puts output gear is installed, described output gear connects with described eccentric knife bar cover as pair output, has the travelling gear engagement to form differential gear between described master gear and the output gear.
5. processing unit (plant) as claimed in claim 4 is characterized in that: described travelling gear is coaxial bidentate wheel.
6. as claim 4 or 5 described processing unit (plant)s, it is characterized in that: differential mechanism comprises a housing, and described gear is positioned at housing, and housing also is equipped with workpiece positioning table and pin-and-hole fixed cover outward.
7. as described processing unit (plant) one of in the claim 3 to 5, it is characterized in that: also comprise the cycle revolution automaton of controlling described cutter spindle cycle revolution.
8. processing unit (plant) as claimed in claim 7, it is characterized in that: described cycle revolution automaton, comprise the speed change system that worm screw on the motor output shaft and corresponding worm gear are formed, a described worm gear and a coaxial installation of cam, cam is corresponding to the switch of motor, and worm gear and worm-gear drive ratio are N.
9. processing unit (plant) as claimed in claim 6, it is characterized in that: also comprise the cycle revolution automaton of controlling described cutter spindle cycle revolution, described cycle revolution automaton comprises the speed change system that worm screw on the motor output shaft and corresponding worm gear are formed, a described worm gear and a coaxial installation of cam, cam is corresponding to the switch of motor, and worm gear and worm-gear drive ratio are N.
10. as described processing unit (plant) one of in the claim 3 to 5, it is characterized in that described non-centrosymmetry workpiece inner groove is the ring washer groove of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010215608 CN101890527A (en) | 2010-07-02 | 2010-07-02 | Processing method and processing device of ring slot in non-centrosymmetric workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010215608 CN101890527A (en) | 2010-07-02 | 2010-07-02 | Processing method and processing device of ring slot in non-centrosymmetric workpiece |
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| CN101890527A true CN101890527A (en) | 2010-11-24 |
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| CN 201010215608 Pending CN101890527A (en) | 2010-07-02 | 2010-07-02 | Processing method and processing device of ring slot in non-centrosymmetric workpiece |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639750A (en) * | 2013-11-26 | 2014-03-19 | 瓦房店轴承砂轮制造有限公司 | Clamp for machining symmetrical workpiece grooves perpendicular to bottom face |
| CN104289749A (en) * | 2013-11-27 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Numerically controlled milling method for circular groove |
| CN104428088A (en) * | 2012-06-28 | 2015-03-18 | 株式会社牧野铣床制作所 | Control device for machine tool and machine tool |
| CN104942354A (en) * | 2015-06-22 | 2015-09-30 | 洛阳汇翔精机有限公司 | Autorotation and revolution mechanism, and cutter head and machine tool using mechanism |
| CN108247106A (en) * | 2018-04-16 | 2018-07-06 | 山东镭鸣数控激光装备有限公司 | A kind of device and method of boring inside holes |
| CN109014789A (en) * | 2018-09-03 | 2018-12-18 | 四川绵竹鑫坤机械制造有限责任公司 | The method for processing through hole of big end |
| CN109079207A (en) * | 2016-09-08 | 2018-12-25 | 钱光宝 | Milling machine |
| CN113000944A (en) * | 2021-03-18 | 2021-06-22 | 汪闰 | Automatic processing equipment for automobile steering rocker arm |
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| GB339072A (en) * | 1929-11-01 | 1930-12-04 | Lockheed Hydraulic Brake Compa | Improvements in or relating to tools for cutting annular grooves in tubes or cylinders |
| JPS59134613A (en) * | 1983-01-20 | 1984-08-02 | Mitsubishi Heavy Ind Ltd | Fine-adjustable grooving cutter |
| CN2071549U (en) * | 1990-08-30 | 1991-02-20 | 上海—易初摩托车有限公司 | Automatic driving and reversing mechanism for cutting groove in internal hole |
| CN2071991U (en) * | 1990-06-19 | 1991-02-27 | 山东莱州市农机配件厂 | Internal hole grooving device |
| CN201055917Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Slot cutting device for slender hole |
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2010
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB339072A (en) * | 1929-11-01 | 1930-12-04 | Lockheed Hydraulic Brake Compa | Improvements in or relating to tools for cutting annular grooves in tubes or cylinders |
| JPS59134613A (en) * | 1983-01-20 | 1984-08-02 | Mitsubishi Heavy Ind Ltd | Fine-adjustable grooving cutter |
| CN2071991U (en) * | 1990-06-19 | 1991-02-27 | 山东莱州市农机配件厂 | Internal hole grooving device |
| CN2071549U (en) * | 1990-08-30 | 1991-02-20 | 上海—易初摩托车有限公司 | Automatic driving and reversing mechanism for cutting groove in internal hole |
| CN201055917Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Slot cutting device for slender hole |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104428088A (en) * | 2012-06-28 | 2015-03-18 | 株式会社牧野铣床制作所 | Control device for machine tool and machine tool |
| CN103639750A (en) * | 2013-11-26 | 2014-03-19 | 瓦房店轴承砂轮制造有限公司 | Clamp for machining symmetrical workpiece grooves perpendicular to bottom face |
| CN103639750B (en) * | 2013-11-26 | 2015-12-30 | 方小刚 | Processing Symmetrical vertical bottom surface workpiece grooving jig |
| CN104289749A (en) * | 2013-11-27 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Numerically controlled milling method for circular groove |
| CN104289749B (en) * | 2013-11-27 | 2017-06-30 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of NC Milling method of annular groove |
| CN104942354A (en) * | 2015-06-22 | 2015-09-30 | 洛阳汇翔精机有限公司 | Autorotation and revolution mechanism, and cutter head and machine tool using mechanism |
| CN109079207A (en) * | 2016-09-08 | 2018-12-25 | 钱光宝 | Milling machine |
| CN108247106A (en) * | 2018-04-16 | 2018-07-06 | 山东镭鸣数控激光装备有限公司 | A kind of device and method of boring inside holes |
| CN109014789A (en) * | 2018-09-03 | 2018-12-18 | 四川绵竹鑫坤机械制造有限责任公司 | The method for processing through hole of big end |
| CN109014789B (en) * | 2018-09-03 | 2020-12-01 | 四川绵竹鑫坤机械制造有限责任公司 | Method for processing via hole of large end of connecting rod |
| CN113000944A (en) * | 2021-03-18 | 2021-06-22 | 汪闰 | Automatic processing equipment for automobile steering rocker arm |
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Application publication date: 20101124 |