CN103341773B - For the advance and retreat cutter mechanism of electric beveling machine for pipes - Google Patents

For the advance and retreat cutter mechanism of electric beveling machine for pipes Download PDF

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Publication number
CN103341773B
CN103341773B CN201310293046.2A CN201310293046A CN103341773B CN 103341773 B CN103341773 B CN 103341773B CN 201310293046 A CN201310293046 A CN 201310293046A CN 103341773 B CN103341773 B CN 103341773B
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cam
disc
cutter
advance
slope
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CN103341773A (en
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吴永平
卜千根
汪魁
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Kunshan Huaheng Welding Co Ltd
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Kunshan Huaheng Welding Co Ltd
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Abstract

The invention provides a kind of advance and retreat cutter mechanism for electric beveling machine for pipes, it comprise toothed disc, driven wheel disc spins servo drive motor, match with toothed disc the cam disc that arranges and be arranged on the slope cutter mechanism that cam disc deviates from the side of toothed disc; Described toothed disc is provided with some first cam surfaces arranged towards cam disc direction, and some first cam surfaces are evenly arranged along toothed disc circumferencial direction; Described cam disc is provided with and matches and some second cam surfaces along the circumferential direction evenly arranged with described first cam surface, when servo drive motor rotates, described first cam surface moves on the second cam surface and actuating cam rim one treats that slope pipe moves axially.

Description

For the advance and retreat cutter mechanism of electric beveling machine for pipes
Technical field
The present invention relates to a kind of tube to tubesheet technical field, particularly relate to a kind of advance and retreat cutter mechanism for electric beveling machine for pipes.
Background technology
Pipe, in process, is groove required when adapting to the unlike material tube welding such as carbon steel, stainless steel, steel alloy, cast iron, now generally adopts lathe turning processing or oxyacetylene metal-cutting and handwheel frosted grinding operation.But lathe turning process equipment is bulky, weight large, be only adapted at fixed venue processing, concerning large diameter steel pipe, transport and clamping etc. are all very inconvenient.Though oxyacetylene metal-cutting and hand operated grinding wheel grinding can be processed at the scene, but the surface quality of its processing is poor, efficiency is low, and workpiece to be machined metal lattice after being heated easily changes, corresponding material internal soundness changes, and so causes workpiece to be machined heatproof, withstand voltage properties to reduce.
In addition, on September 21st, 2011, a kind of fixed pipeline of Chinese utility model CN201979162U patent announcement of bulletin efficiently cut off beveling machine, and the infeed mean of this kind of beveling machine comprises the rotation deep bid that is positioned on rack unit and is arranged on and rotates on deep bid to complete the feeding system that groove cuts; This feeding system mainly utilizes two motors to control two groove cuttves respectively, thus realizes the retreat operation of two groove cuttves respectively.But the more difficult advance and retreat uniformity realizing two groove cuttves of mode that this kind controls respectively, and then the formation precision of groove can be reduced; In addition, this kind uses motor directly actuated mode energy consumption larger respectively.
Therefore, be necessary to provide a kind of advance and retreat cutter mechanism for electric beveling machine for pipes to overcome the problems referred to above.
Summary of the invention
The object of the present invention is to provide a kind of stable performance and the lower advance and retreat cutter mechanism for electric beveling machine for pipes of energy consumption.
For achieving the above object, the invention provides a kind of advance and retreat cutter mechanism for electric beveling machine for pipes, described advance and retreat cutter mechanism comprise toothed disc, driven wheel disc spins servo drive motor, match with toothed disc the cam disc that arranges and be arranged on the slope cutter mechanism that cam disc deviates from the side of toothed disc; Described toothed disc is provided with some first cam surfaces arranged towards cam disc direction, and some first cam surfaces are evenly arranged along toothed disc circumferencial direction; Described cam disc is provided with and matches and some second cam surfaces along the circumferential direction evenly arranged with described first cam surface, when servo drive motor rotates, described first cam surface moves on the second cam surface and actuating cam rim one treats that slope pipe moves axially; Described toothed disc is also fixed with some bearing assemblies, and described bearing assembly is provided with towards the extended fixed block in cam disc direction and the bearing that is fixed on fixed block, and described bearing is held in the side that cam disc deviates from toothed disc.
As a further improvement on the present invention, in described first cam surface and the second cam surface, wherein one is towards treating that tube axis direction, slope is obliquely installed, and one deviates from tube axis direction and is obliquely installed in addition.
As a further improvement on the present invention, all helically planar is extended for described first cam surface and the second cam surface.
As a further improvement on the present invention, in the form of a ring, the gear wherein on toothed disc is arranged on outside to described toothed disc, and be provided with the first cam ring extended towards cam disc direction inside toothed disc, some first cam surfaces are formed on the first cam ring.
As a further improvement on the present invention, described cam disc is also arranged in the form of a ring, and is provided with the second cam ring extended towards the first cam surface direction within it, and described second cam surface is formed on the second cam ring.
As a further improvement on the present invention, described cam disc be also provided be positioned at outside and be some 3rd cam surfaces that negative and positive shape is arranged with the second cam surface, described bearing is held on described 3rd cam surface.
As a further improvement on the present invention, described advance and retreat cutter mechanism also comprises the elastic mechanism be connected between cam disc and slope cutter mechanism, described elastic mechanism comprises some extension springs being fixed on the lead on cam disc and being fixed on lead, described slope cutter mechanism comprises the push-plate be oppositely arranged with cam disc, and described extension spring is fixedly connected with push-plate and lead.
As a further improvement on the present invention, described slope cutter mechanism also comprises cutter head assembly and is fixed between cutter head assembly and push-plate to carry out moving the steering mechanism turned to.
As a further improvement on the present invention, described advance and retreat cutter mechanism also comprises the output gear be fixed on the output shaft of servo drive motor, and the gear on described toothed disc matches with described output gear and rotates.
The invention has the beneficial effects as follows: in the present invention, by arranging, there is the toothed disc of some first cam surfaces, the cam disc with the second cam surface and servo drive motor for the advance and retreat cutter mechanism of electric beveling machine for pipes, make when servo drive motor rotates, described first cam surface moves on the second cam surface and actuating cam rim one treats that slope pipe moves axially, and then slope cutter mechanism can be promoted move integrally, thus realize the uniformity of slope cutter mechanism movement, improve the formation precision of groove, and drive by means of only a servo drive motor, energy consumption is lower; In addition, matched by multiple first cam surface of evenly arranging and the second cam surface, the present invention can be improved and to retreat the stability of cutter mechanism.
Accompanying drawing explanation
Fig. 1 is provided with the present invention to retreat the stereogram of the mobile headstock of cutter mechanism;
Fig. 2 is the sectional view of the mobile headstock in Fig. 1;
Fig. 3 is the magnified partial view of circled portion in Fig. 2;
Fig. 4 is the cooperation schematic diagram of toothed disc in Fig. 1 on the mobile headstock and cam disc;
Fig. 5 is the sectional view of Fig. 4 middle gear dish and cam disc;
Fig. 6 is the stereogram of Fig. 4 convexity wheel disc;
Fig. 7 is the sectional view of Fig. 6 convexity wheel disc;
Fig. 8 is that the present invention retreats the part-structure stereogram of cutter mechanism;
Fig. 9 is the front view of cutter mechanism of retreating in Fig. 8;
Figure 10 is the sectional view of cutter mechanism along A-A line direction of retreating in Fig. 9;
Figure 11 is the contrast schematic diagram that cutting knife on cutter mechanism and slope cutter be superimposed of retreating in Fig. 8, show each group of slope cutter stretch into the degree of depth and spacing is different;
Top view when Figure 12 is being superimposed of cutting knife in Figure 11 and slope cutter, shows the blade extension angle being positioned at homonymy slope cutter in each group of slope cutter identical.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection scope of the present invention.
Please refer to Fig. 1 to Figure 12 shows that the present invention retreats the better embodiment of cutter mechanism 22.The present invention is mainly applicable in the mobile headstock 2 of an electric beveling machine for pipes (not shown) for cutter mechanism 22 of retreating, to carry out groove operation to pipe (not shown).In the present embodiment, described advance and retreat cutter mechanism 22 also can carry out rupturing operation to pipe.The fixing headstock 23 that the described mobile headstock 2 comprises static housing 21, is fixed on the described advance and retreat cutter mechanism 22 in static housing 21 and is fixed in static housing 21.The described fixing headstock 23 is positioned at the side of advance and retreat cutter mechanism 22 along pipe axial direction, be fixed to treat slope pipe.
Shown in composition graphs 1 to Fig. 7, described advance and retreat cutter mechanism 22 is provided with the host cavity 220 running through vertically to accommodate pipe, and the elastic mechanism 26 comprising transmission mechanism 24, slope cutter mechanism 25 and be connected between transmission mechanism 24 and slope cutter mechanism 25.Described host cavity 220 axially runs through described transmission mechanism 24 and slope cutter mechanism 25 along pipe, and belongs to a part for described transmission mechanism 24 and slope cutter mechanism 25.The axis of described host cavity 220 with radial respectively with treat that the axis of slope pipe and radial direction are corresponding identical.
The servo drive motor 242 that described transmission mechanism 24 comprises the toothed disc 241 be fixed in static housing 21, drive gear disk 241 rotates, to be fixed in static housing 21 and the cam disc 243 arranged that matches with toothed disc 241.Described elastic mechanism 26 is connected between cam disc 243 and slope cutter mechanism 25.Described transmission mechanism 24 also comprises the output gear (not shown) on the output shaft being fixed on servo drive motor 242, and the gear 2410 on described toothed disc 241 matches with described output gear and rotates.
Described toothed disc 241 is provided with some first cam surfaces 2411 arranged towards cam disc 243 direction, and this some first cam surface 2411 is evenly arranged along toothed disc 241 circumferencial direction.Described cam disc 243 is provided with and matches and some second cam surfaces 2431 along the circumferential direction evenly arranged with described first cam surface 2411, when servo drive motor 242 rotates, described first cam surface 2431 move on the second cam surface 2411 and actuating cam dish 243 along treating that slope pipe moves axially.
In the form of a ring, the gear 2410 wherein on toothed disc 241 is arranged on outside to described toothed disc 241, and be provided with the first cam ring 2412 extended towards cam disc 243 direction inside toothed disc 241, some described first cam surfaces 2411 are formed on the first cam ring 2412.Described cam disc 243 is also arranged in the form of a ring, and is provided with the second cam ring 2432 extended towards the first cam surface 2411 direction within it, and described second cam surface 2431 is formed on the second cam ring 2432.
In described first cam surface 2411 and the second cam surface 2431 wherein one towards treating that tube axis direction, slope is obliquely installed, one deviates from tube axis direction and is obliquely installed in addition, the fitment stability between the first cam surface 2411 and the second cam surface 2431 can be increased thus, and friction between the two can be reduced.In addition, all helically planar is extended for each first cam surface 2411 and the second cam surface 2431, can reduce motive force when actuating cam dish 243 moves when the first cam surface 2411 moves on the second cam surface 2431.
In addition, described cam disc 243 is also provided with and is positioned at outside and some 3rd cam surfaces 2433 arranged in negative and positive shape with the second cam surface 2431.Described toothed disc 241 is also fixed with some bearing assemblies 245, and described bearing assembly 245 is provided with towards the extended fixed block 2451 in cam disc 243 direction and the bearing 2452 that is fixed on fixed block 2451.Described bearing 2452 is held in the side that cam disc 243 deviates from toothed disc 241, namely be held on described 3rd cam surface 2433, when moving on the concave surface of the first cam surface 2411 towards the second cam surface 2431 thus, bearing 2452 also moves and is pulled back by cam disc 243 on the concave surface of the 3rd cam surface 2433, and then realizes withdrawing operation.Wherein the convex surface of the second cam surface 2431 and concave surface are opposed gear dishes 241, and towards toothed disc 241 direction projection is convex surface, and what deviate from toothed disc 241 direction projection is concave surface.In addition, convex surface and the concave surface of the 3rd cam surface 2433 are moving relative to bearing 2452, and the 3rd cam surface 2433 is concave surface towards bearing 2452 direction projection, and what deviate from bearing 2452 direction projection is convex surface.
Described elastic mechanism 26 comprises some extension springs 262 being fixed on the lead 261 on cam disc 243 and being fixed on lead 261.One end of described extension spring 262 is fixed on lead 261, and the other end is fixed on slope cutter mechanism 25.Described static housing 21 is provided with the supporting seat 210 be supported between transmission mechanism 24 and slope cutter mechanism 25.Described supporting seat 210 is provided with the pilot hole (not shown) of the described lead 261 of collecting and extension spring 262.
Shown in composition graphs 1, Fig. 8 to Figure 12, described slope cutter mechanism 25 comprises the push-plate 251 be oppositely arranged by the cam disc 241 in elastic mechanism 26 and transmission mechanism 24, the cutter head assembly 252 being arranged on push-plate 251 side, the cutting driving mechanism 254 that is connected to the some steering mechanism 253 between push-plate 251 and cutter head assembly 252 and drives cutter head assembly 252 to rotate.Described extension spring 262 is fixedly connected with push-plate 251 and lead 261.Described push-plate 251 also in the form of a ring.Described cutter head assembly 252 is included in several cutter boxes 2522 pipe axial direction being fixedly installed on the cutterhead 2521 in static housing 21 and being movably fixed on cutterhead 2521.Described host cavity 220 through described cutterhead 2521, and is a part for described cutterhead 2521.Cutterhead 2521 is fixed with gear, and cutterhead 2521 is matched with gear by cutting driving mechanism 254 and drives cutterhead 2521 to rotate.In addition, described cutterhead 2521 is provided with along the radial extended guide rail 2520 of host cavity 220, and described cutter box 2522 is provided with the chute 25220 matched with guide rail 2520.Described cutter box 2522 internal fixtion has slope knife assembly or cutter assembly.
Described steering mechanism 253 is corresponding with cutter box 2522 is set to some groups, and it is three axle linkages.Each group steering mechanism 253 comprises the first rotating shaft 2531 be fixed on cutterhead 2521, the second rotating shaft 2532 be fixed on cutter box 2522, the 3rd rotating shaft 2533 be connected with push-plate 251 by bindiny mechanism, the connecting rod 2534 that connects the first rotating shaft 2531 and the 3rd rotating shaft 2533 and the second rotating shaft 2532 and the 3rd rotating shaft 2533 respectively.Because the first rotating shaft 2531 is fixed on cutterhead 2521, cutter box 2522 can slide on cutterhead 2521, and the second rotating shaft 2532 is fixed on cutter box 2522, thus impel the second rotating shaft 2532 to be with moving knife box 2522 to move in the radial direction at pipe during the 3rd rotating shaft 2533 in all steering mechanism 253 of push-plate 251 push-and-pull, and then realize the common advance and retreat of all cutter boxes 2522 on slope cutterhead 2521.Described cutterhead 2521 comprises the first fixed block 25211 fixing the first rotating shaft 2531.Cutter box 2522 has the second fixed block 25221 fixing the second rotating shaft 2532, and cutterhead 2521 is provided with for the second fixed block 25221 through the chute (not shown) also slided wherein.In addition, described steering mechanism 253 also comprises the extension spring 2535 being fixedly connected with the first fixed block 25211 and the second fixed block 25221.
Described bindiny mechanism comprises the U-shaped contiguous block 2536 for fixing the 3rd rotating shaft 2533, described U-shaped contiguous block 2536 comprises the fixed arm 25361 and position limit arm 25362 that are oppositely arranged, 3rd rotating shaft 2533 is fixed on fixed arm 25361, position limit arm 25362 is positioned at the side that push-plate 251 deviates from the 3rd rotating shaft 2533, thus keep push-plate 251 partial receipt in U-shaped contiguous block 2536, make push-plate 251 that the 3rd rotating shaft 2533 can be pulled to move on pipe axial direction.Described bindiny mechanism also comprises the bearing 2537 be fixed on fixed arm 25361, described bearing 2537 be connected to push-plate 251 towards the 3rd rotating shaft 2533 side on the surface, steering mechanism 253 can be driven in rotary moving on push-plate 2521 to make cutter head assembly 252.
Some described cutter boxes 2522 comprise a cutting knife cutter box 2523 and at least two slope cutter cutter boxes 2524, include three slope cutter cutter boxes 2524 in the present embodiment.Described cutting knife cutter box 2523 internal fixtion has cutter assembly 2525, and described cutter assembly 2525 comprises cutting-off tool rest 25251, be fixed on the cutting knife handle of a knife 25252 on cutting-off tool rest 25251 and be fixed on the cutting knife 25253 of cutting knife handle of a knife 25252 head.Each slope cutter cutter box 2524 is fixed with one group of slope knife assembly 2526, described slope knife assembly 2526 comprises slope cutter knife rest 25261, be fixed on the slope cutter handle of a knife 25262 on slope cutter knife rest 25261 and be fixed on the described slope cutter 25263 of slope cutter handle of a knife 25262 head.
The degree of depth that the slope cutter 25263 of above-mentioned at least two group slope knife assemblies 2526 stretches in described host cavity 220 along host cavity 220 radial direction differs, in the present embodiment, the degree of depth that stretches in described host cavity 220 along host cavity 220 radial direction of the slope cutter 25263 of three groups of slope knife assemblies 2526 is all different.
In the present embodiment, slope cutter handle of a knife 25262 head described in each is fixed with two described slope cuttves, 25263, two slope cuttves 25263 along host cavity 220 axial arranging.And, in above-mentioned three groups of slope knife assemblies 2526, cutter handle of a knife 25262 head two slope cuttves 25263 fixing in slope are different along the spacing of host cavity 220 axial direction, and the degree of depth that larger two the slope cuttves 25263 of spacing stretch in host cavity 220 along host cavity 220 radial direction is more shallow.Each slope cutter 25263 has one in order to carry out the blade 25264 of groove operation, and blade 25264 extension angle being positioned at the slope cutter 25263 of homonymy in above-mentioned at least two group slope knife assemblies 2526 is identical.
What described cutting knife 25253 was greater than all slopes cutter 25263 along the host cavity 220 radial direction degree of depth stretched in described host cavity 220 stretches into the degree of depth.At host cavity 220 circumferentially, the degree of depth that stretches in described host cavity 220 according to cutting knife 25253 or slope cutter 25263 of described cutter assembly 2525 and slope knife assembly 2526 is shallow evenly distributed successively by being deep to.
The described fixing headstock 23 comprises the second combination chuck 231 of being fixed in static housing 21 and orders about hydraulic motor clamp system 232 and the Manual clamping mechanism 233 that the second combination chuck 231 clamps pipe.
By obtaining above, in the present invention, the transmission mechanism 24 of described advance and retreat cutter mechanism 22 is by arranging the toothed disc 241 with some first cam surfaces 2411, there is the cam disc 243 of the second cam surface 2431, and servo drive motor 242, make when servo drive motor 242 rotates, described first cam surface 2411 move on the second cam surface 2431 and actuating cam dish 243 along treating that slope pipe moves axially, and then slope cutter mechanism 25 can be promoted move integrally, namely push-plate 251 is promoted, push-plate 251 drives all steering mechanism 253 to drive the cutting knife 25253 on cutter head assembly 252 and slope cutter 25263 to carry out telescopic moving simultaneously, the uniformity of slope cutter 25263 movement can be realized thus, improve the formation precision of groove, and drive by means of only a servo drive motor 242, energy consumption is lower, in addition, matched by multiple first cam surface 2411 of evenly arranging and the second cam surface 2431, the stability of advance and retreat cutter mechanism 22 can be improved.
In addition, in advance and retreat cutter mechanism 22, by three axle linkages as steering mechanism 253, make each several part in cutter head assembly 252 adopt mechanical connection on the one hand, thus rigidity is stronger; Effectively can save the motive force promoted when slope cutter 25263 stretches in host cavity 220 on the other hand, reduce energy consumption further.
In addition, the degree of depth that the slope cutter 25263 of at least two group slope knife assemblies 2526 stretches in described host cavity 220 along host cavity 220 radial direction differs, thus the slope cutter 25263 of at least two group slope knife assemblies 2526 can be made to carry out the groove cutting operation of different depth respectively, reduce each slope knife assembly 2526 less along the collapsing length of host cavity 220 radial direction, reduce energy consumption; The cutting operation of one section of degree of depth of groove is only responsible for by the slope cutter 25263 simultaneously often organized on slope knife assembly 2526, and then can reduce the wearing and tearing of slope cutter 25263, increases the service life of cutter head assembly 252 of the present invention.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.

Claims (9)

1., for an advance and retreat cutter mechanism for electric beveling machine for pipes, it is characterized in that: described advance and retreat cutter mechanism comprise toothed disc, driven wheel disc spins servo drive motor, match with toothed disc the cam disc that arranges and be arranged on the slope cutter mechanism that cam disc deviates from the side of toothed disc; Described toothed disc is provided with some first cam surfaces arranged towards cam disc direction, and some first cam surfaces are evenly arranged along toothed disc circumferencial direction; Described cam disc is provided with and matches and some second cam surfaces along the circumferential direction evenly arranged with described first cam surface, when servo drive motor rotates, described first cam surface moves on the second cam surface and actuating cam rim one treats that slope pipe moves axially; Described toothed disc is also fixed with some bearing assemblies, and described bearing assembly is provided with towards the extended fixed block in cam disc direction and the bearing that is fixed on fixed block, and described bearing is held in the side that cam disc deviates from toothed disc.
2. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1, is characterized in that: in described first cam surface and the second cam surface, wherein one is towards treating that tube axis direction, slope is obliquely installed, and one deviates from tube axis direction and is obliquely installed in addition.
3. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1 and 2, is characterized in that: all helically planar is extended for described first cam surface and the second cam surface.
4. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1, it is characterized in that: described toothed disc in the form of a ring, gear wherein on toothed disc is arranged on outside, be provided with the first cam ring extended towards cam disc direction inside toothed disc, some first cam surfaces are formed on the first cam ring.
5. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 4, it is characterized in that: described cam disc is also arranged in the form of a ring, and be provided with the second cam ring extended towards the first cam surface direction within it, described second cam surface is formed on the second cam ring.
6. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1, is characterized in that: described cam disc be also provided be positioned at outside and be some 3rd cam surfaces that negative and positive shape is arranged with the second cam surface, described bearing is held on described 3rd cam surface.
7. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1, it is characterized in that: described advance and retreat cutter mechanism also comprises the elastic mechanism be connected between cam disc and slope cutter mechanism, described elastic mechanism comprises some extension springs being fixed on the lead on cam disc and being fixed on lead, described slope cutter mechanism comprises the push-plate be oppositely arranged with cam disc, and described extension spring is fixedly connected with push-plate and lead.
8. according to claim 7 for the advance and retreat cutter mechanism of electric beveling machine for pipes, it is characterized in that: described slope cutter mechanism also comprises cutter head assembly and is fixed between cutter head assembly and push-plate to carry out moving the steering mechanism turned to.
9. the advance and retreat cutter mechanism for electric beveling machine for pipes according to claim 1, it is characterized in that: described advance and retreat cutter mechanism also comprises the output gear be fixed on the output shaft of servo drive motor, the gear on described toothed disc matches with described output gear and rotates.
CN201310293046.2A 2013-07-12 2013-07-12 For the advance and retreat cutter mechanism of electric beveling machine for pipes Active CN103341773B (en)

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Publication number Priority date Publication date Assignee Title
CN104028841B (en) * 2014-05-27 2017-03-08 宁波信驰焊割设备有限公司 A kind of pipe fitting bevelling machine
CN105643338B (en) * 2015-01-20 2017-12-12 昆山华恒焊接股份有限公司 Enter retraction mechanism for end surface beveller
CN105666223B (en) * 2015-11-26 2017-10-31 浙江科技学院 A kind of automatic entrance-exit cutter mechanism for large diameter pipeline beveling machine
CN110315141B (en) * 2018-03-28 2020-10-23 中国石油化工股份有限公司 Carbon rod cutting device and coating film instrument evaporation assembly with same

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KR100503477B1 (en) * 2002-12-24 2005-07-25 삼성전자주식회사 Pump apparutus for ink jet printer
US7448481B2 (en) * 2004-07-27 2008-11-11 Ford Global Technologies, Llc Ratcheting one-way clutch having rockers actuated by centrifugal force
CN2907988Y (en) * 2005-12-07 2007-06-06 蒋传庆 Portable pipeline beveling machine
CN201161340Y (en) * 2008-03-06 2008-12-10 武汉市高雄科技发展有限责任公司 Desk type automatic chamfering machine
CN201455274U (en) * 2009-08-12 2010-05-12 武汉市世纪电动工具有限公司 Automatic centering annular beveling machine
CN201979162U (en) * 2010-06-08 2011-09-21 上海前山管道技术有限公司 Efficient stationary piping cutting and bevelling machine
CN203330766U (en) * 2013-07-12 2013-12-11 昆山华恒焊接股份有限公司 Cutter feeding and retracting mechanism for pipe beveling machine
CN203330767U (en) * 2013-07-12 2013-12-11 昆山华恒焊接股份有限公司 Cutter feeding and retracting mechanism for pipe beveling machine

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