CN105643338B - Enter retraction mechanism for end surface beveller - Google Patents
Enter retraction mechanism for end surface beveller Download PDFInfo
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- CN105643338B CN105643338B CN201510028759.5A CN201510028759A CN105643338B CN 105643338 B CN105643338 B CN 105643338B CN 201510028759 A CN201510028759 A CN 201510028759A CN 105643338 B CN105643338 B CN 105643338B
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Abstract
Present invention offer is a kind of to enter retraction mechanism for end surface beveller.It is described enter retraction mechanism include pedestal and the cutter head assembly that is equipped with pedestal.Motor is provided with the pedestal, the leading screw of motor output end is fixed on, merges the axial transmission mechanism that can be slided along leading screw axial direction with leading screw matching, is arranged on the axial rack of axial transmission mechanism output end.The axial rack is protruded into cutter head assembly.The cutter head assembly has the cutterhead connecting seat that is interfixed along leading screw axial direction and cutterhead, is fixed in cutterhead connecting seat and side engage the conjugate tooth of setting with axial rack, is meshed with conjugate tooth opposite side and the radial direction rack of vertical axial rack setting, the slide for being slidably arranged on cutterhead and mutually being fixed with radial direction rack, the slope knife assembly that is fixedly connected with the connector of radial direction rack and slide and is fixed on slide.The cutterhead is provided with the fluting passed through for connector.
Description
Technical field
The present invention relates to a kind of tube to tubesheet technical field, more particularly to a kind of enter withdrawing machine for end surface beveller
Structure.
Background technology
Pipe in process, to adapt to carbon steel, stainless steel, steel alloy, the unlike material tube welding when institute such as cast iron
The groove needed, typically now using lathe turning processing or oxyacetylene metal-cutting and handwheel frosted grinding operation.But lathe turning adds
Construction equipment is bulky, weight is big, is suitable only for processing in fixed venue, and for the steel pipe of major diameter, transport and clamping etc. are all
It is very inconvenient.Though oxyacetylene metal-cutting and hand operated grinding wheel grinding can process at the scene, the surface quality that it is processed is poor, efficiency
It is low, and workpiece to be machined metal lattice after heated easily changes, and corresponding material internal soundness changes, and so draws
Play workpiece to be machined heatproof, pressure-resistant performance reduces.
In addition, in Chinese invention patent application disclosed in 9 days October in 2013 No. CN103341773A disclose one kind
Enter retraction mechanism for beveling machine, it mainly realizes moving forward and backward for slope knife by the cam mechanism on cam disc.Because
The travel limit for entering withdrawing mode of this kind of cam structure so that this kind enters retraction mechanism and be only applicable to the relatively thin pipe of tube wall
Sub- groove, it is impossible to be useful in the thicker pipe groove work of tube wall.
Therefore, it is necessary to provide a kind of pipe groove operation for being applicable to carry out thicker tube wall enter retraction mechanism with gram
Take above mentioned problem.
The content of the invention
It is an object of the invention to provide a kind of pipe groove operation being applicable to thicker tube wall and performance accuracy
Higher enters retraction mechanism for end surface beveller.
For achieving the above object, enter retraction mechanism for end surface beveller the invention provides a kind of, it is described enter
Retraction mechanism includes pedestal and the cutter head assembly being equipped with pedestal；Motor is provided with the pedestal, is fixed on drive
The leading screw of dynamic motor output end, matching with leading screw merges the axial transmission mechanism that can be slided along leading screw axial direction, is arranged on axle
To the axial rack of transmission mechanism output end, the axial rack is protruded into cutter head assembly；The cutter head assembly has along silk
Cutterhead connecting seat and cutterhead that thick stick axial direction interfixes, it is fixed in cutterhead connecting seat and side is engaged with axial rack and set
The conjugate tooth put, it is meshed with conjugate tooth opposite side and radial direction rack that vertical axial rack is set, is slidably arranged in knife
The slide mutually fixed on disk and with radial direction rack, it is fixedly connected with the connector of radial direction rack and slide and the slope being fixed on slide
Knife assembly, the cutterhead are provided with the fluting passed through for connector.
As a further improvement on the present invention, the cutterhead connecting seat is axially provided through a perforation along leading screw, described
Cutter head assembly is additionally provided with the gear fixed seat being fixed in perforation, and the conjugate tooth is fixed in the gear fixed seat, institute
State axial rack to be extended through the gear fixed seat and be engaged with the conjugate tooth, the radial direction rack is provided with and supplies axle
The slot to make way stretched into rack.
As a further improvement on the present invention, the gear fixed seat is also solid away from the side of conjugate tooth in axial rack
Surely there is a roller, the roller supports axial rack.
As a further improvement on the present invention, it is fixed with the cutterhead connecting seat and is led with what radial direction rack be arranged in parallel
Rail, the sliding block being slidably matched with the guide rail is fixed with the radial direction rack.
As a further improvement on the present invention, the rectangular frame shaped design of the radial direction rack, is formed as supplying axle among it
The slot to make way stretched into rack, two long sides are formed as engaging the tooth-strip part set with conjugate tooth, and the sliding block is arranged on two
On bar short side.
As a further improvement on the present invention, the cutter head assembly also includes an extension spring, the extension spring and radial direction rack
It is be arranged in parallel with slide, and one end of extension spring is fixed on the cutterhead, the other end is fixed on the slide.
As a further improvement on the present invention, the pedestal includes casing, the hollow type being removably secured in casing
Main shaft, the roller bearing being arranged between casing and main shaft and the guide pin bushing mutually fixed with main shaft, the axial transmission mechanism are worn
Enter the guide pin bushing and in main shaft, the axial rack is connected in main shaft with the axial transmission mechanism.
As a further improvement on the present invention, the cutterhead connecting seat is mutually fixed with the main shaft.
As a further improvement on the present invention, the pedestal also includes being arranged on cylinder on the outside of leading screw and along leading screw axial direction
The axis of guide being fixed in cylinder, the cylinder are mutually fixed with casing, and the axial transmission mechanism includes what is be engaged with leading screw
Sliding block, the bearing being fixed in sliding block, the adapter sleeve being fixed in bearing and it is enclosed on the outside of leading screw and mutually fixed with adapter sleeve
Guide pillar, the axial rack are connected with guide pillar.
As a further improvement on the present invention, the guide pillar is square columnar design, and the guide pin bushing is provided with and guide pillar matches
The square hole of conjunction.
The beneficial effects of the invention are as follows：The present invention, the motor pass through the leading screw, axial transmission mechanism, axial direction
Rack, conjugate tooth and radial direction rack move the convert rotational motion of motor for the radial alignment of slope knife assembly, and
The shift motion of slope knife assembly can be effectively increased using the driven Design of axial rack and radial direction rack, and then the present invention is entered
Retraction mechanism is suitable for the groove operation of the thicker pipe of tube wall；In addition, using axial rack, conjugate tooth and radial direction rack
Coordinate transmission, may be such that shift motion is more precisely controlled, and then improve pipe groove accuracy and quality；In addition, this
Invent simple, easy for installation into withdrawing overall construction design.
Brief description of the drawings
Fig. 1 is the stereogram for entering retraction mechanism in the present invention；
Fig. 2 is the sectional view for entering retraction mechanism in Fig. 1；
Fig. 3 is the magnified partial view of circled portion in Fig. 2；
Fig. 4 is the three-dimensional exploded view of the cutter head assembly and radial direction rack that enter retraction mechanism in Fig. 1；
Fig. 5 is the sectional view of the cutter head assembly and radial direction rack that enter retraction mechanism in Fig. 1.
Embodiment
Below with reference to each embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are not
The limitation present invention, structure that one of ordinary skill in the art is made according to these embodiments, method or change functionally
Change and be all contained in protection scope of the present invention.
It refer to Fig. 1 to Fig. 5 and show the preferable embodiment party for entering retraction mechanism 100 that the present invention is used for end surface beveller
Formula.It is described enter retraction mechanism 100 be primarily adapted for use in end face beveling machine（It is not shown）Frame in, with to pipe（It is not shown）Enter
Row groove operates.In the present embodiment, it is described enter retraction mechanism 100 can also to tube wall face carry out corrective operations.
With reference to shown in Fig. 1 to Fig. 5, it is described enter retraction mechanism 100 mainly include axial running part and radial direction driving section
Point.The axial running part includes motor（It is not shown）；The radial direction running part is a cutter head assembly 500, its
In include slope knife assembly 50；It is described enter retraction mechanism 100 be then by the circle rotation of motor by axial running part
Conversion of motion is axial linear movement, and axial linear movement then is converted into radial alignment motion through the radial direction running part
Pass to slope knife assembly so that slope knife assembly can retreat in radial direction straight line.
Refer to shown in figure to Fig. 3, wherein, the axial running part includes pedestal 1, the institute being arranged in pedestal 1
Motor is stated, the leading screw 2 of motor output end is fixed on, merges what can be slided along the axial direction of leading screw 2 with the matching of leading screw 2
Axial transmission mechanism 3, the axial rack 4 for being arranged on the axial output end of transmission mechanism 3.
The axis of guide 161 that the pedestal 1 is provided with a fixed cylinder 16 and is axially fixed in along leading screw 2 in cylinder 16.Institute
State one end that motor is fixed on cylinder 16.The leading screw 2 and axial transmission mechanism 3 are arranged on the inner side of cylinder 16, the axle
The one end of cylinder 16 away from motor is extended beyond to transmission mechanism 3.The axial transmission mechanism 3 and the axis of guide 161
It is slidably matched so that when motor drives the rotation of leading screw 2, under the driving of leading screw 2, the axial transmission mechanism 3 is being oriented to
Along the axial linear movement of leading screw 2 on axle 161, and then axial rack 4 is driven to move along a straight line vertically, thus by the circle of motor
Transhipment turn of socializing turns to axial linear movement.
It refer to Fig. 1, Fig. 3 and Fig. 4, shown in Fig. 5, the axial rack 4 is protruded into cutter head assembly 500.The cutterhead
Component 500 has the cutterhead connecting seat 51 to be interfixed along the axial direction of leading screw 2 and cutterhead 52, is fixed in cutterhead connecting seat 51
And the conjugate tooth 53 of setting is engaged with axial rack 4, is meshed with the opposite side of conjugate tooth 53 for side and vertical axial rack 4
The radial direction rack 54 of setting, the slide 55 for being slidably arranged on cutterhead 52 and being fixed with the phase of radial direction rack 54, it is fixedly connected radially
The connector 56 of rack 54 and slide 55 and the slope knife assembly 50 being fixed on slide 55.The cutterhead 52 is provided with for connecting
The fluting 521 that part 56 passes through.The fluting 521 is in strip, and band follower link 56 is being slotted when being moved for radial direction rack 54
Moved in 521.The slope knife assembly 50 has the tool rest 501 being fixed on slide 55 and two that are fixed on the both sides of tool rest 501
Slope knife 502, wherein a slope knife 502 is used for carrying out groove operation on the outside of pipe, another slope knife 502 may be configured as being used for pipe
Internal face carries out correcting circular arc degree operation.
Specifically, the cutterhead connecting seat 51 is provided with a perforation 511 axially penetrated through along leading screw 2, along the side of down-feed screw 2
To extension to be engaged the chute 512 of setting, the strip guide rail 513 being fixed in chute 512 with radial direction rack 54.It is described to lead
Rail 513 is separated in perforation 511 to be set in two-part, and is be arranged in parallel with the radial direction rack 54.
The cutter head assembly 500 also has the gear fixed seat 57 being fixed in perforation 511, and the conjugate tooth 53 rotates
Be fixed in the gear fixed seat 57 to property, the axial rack 4 be extended through the gear fixed seat 57 and with it is described
Conjugate tooth 53 is engaged.The gear fixed seat 57 is further fixed on a rolling in axial rack 4 away from the side of conjugate tooth 53
Wheel 58, the roller 58 supports axial rack 4, to cause axial tooth bar 4 to be fitted close with conjugate tooth 53.
54 rectangular frame shaped of the radial direction rack design, is formed as the slot to make way stretched into for axial rack 4 among it
541, two long sides are formed as engaging the tooth-strip part 542 set with roller 58, be then fixedly installed on two short sides to institute
State the sliding block 543 that guide rail 513 is slidably matched.The slot to make way 541 and the perforation 511 on the cutterhead connecting seat 51 and chute
512 are connected.The conjugate tooth 53 stretch into chute 512 and with the engaged transmission of tooth-strip part 542 of radial direction rack 54.
The elongated slot 520 for housing the slide 55 is provided with the cutterhead 52, the both sides of elongated slot 520 are fixed with fixed block
522, formed with slideway 5221 on fixed block 522；The both sides of slide 55 are fixed with the cunning being slidably matched with the slideway 5221
Rail 551.A strip accepting groove 552 is provided with the slide 55, the slope knife assembly 50 is fixed in accepting groove 552, and
Fixed position can be adjusted in accepting groove 552, to adapt to the operation of the pipe groove of different tube diameters.
In addition, the cutter head assembly 500 also includes an extension spring 59, the extension spring 59 is parallel to slide 55 and radial direction rack
54 and be arranged in the elongated slot 520.The slide 55 is provided with is connected and houses allowing for the upper portion of extension spring 59 with elongated slot 520
Position chamber 553.One end of the extension spring 59 is fixed on the inwall of elongated slot 520 of the cutterhead 52 by fixture, and the other end passes through
One rotating shaft is fixed in the side wall of resigning chamber 553 of the slide 55.The extension spring 59 may be such that slide 55 by the band of radial direction rack 54
It when moving and moving radially, may be such that slide 55 is constantly in tension, and then cause radial direction rack 54 to be also at tension,
So as to ensure the tooth-strip part 542 of radial direction rack 54 and the cooperation tight ness rating of the teeth of conjugate tooth 53.
Structure description and the said structure of cutter head assembly 500 with reference to above-mentioned axial running part are understood, in axial rack 4
During by drives edge axial linear movement, side drives rotation with the conjugate tooth 53 that axial rack 4 is meshed by axial rack 4,
The rotation of conjugate tooth 53 drives the radial direction rack 54 engaged with its opposite side radially to move linearly again, and then passes through connector
56 drive slides 55 and slope knife assembly 50 radially move forward and backward；Be achieved in be by the circle rotation conversion of motion of motor
The radial alignment motion of slope knife assembly 50, also, in the present embodiment, pass through axial rack 4, conjugate tooth 53 and radial teeth
The transmission of bar 54 coordinates so that and the shift motion of slope knife assembly 50 can be precisely controlled, meanwhile, this kind transmission, which coordinates, may be used also
Increase slope knife assembly 50 moves radially stroke, and then can realize the groove operation to the pipe with thicker caliber.
It refer to shown in Fig. 1 to Fig. 3, in addition, machine tooling mode of the prior art is using pipe rotation, retreated
The mode that cutter mechanism is fixed is carried out, especially inconvenient for the retaining wall on slope of long tube；For ease of to long pipe along the circumferential direction
Retaining wall on slope operation is carried out, the present invention enters retraction mechanism 100 and is additionally provided with the rotation for driving cutter head assembly 500 along the circumferential direction to move
Turn drive mechanism, i.e. pipe retaining wall on slope operation is carried out by the way of pipe is fixed, cutter head assembly 500 rotates, in this implementation
In mode, the rotary drive structure setting is on the pedestal 1 of axial running part, and specifically, the pedestal 1 includes casing
11st, the hollow type main shaft 12 that is removably secured in casing 11, the roller bearing 13 being arranged between casing 11 and main shaft 12,
The toothed disc 14 for being fixed on the outside of main shaft 12, the guide pin bushing 15 for being fixed on the end of main shaft 12.The cutter head assembly 500 is connected by cutterhead
Joint chair 51 is fixedly connected with the phase of hollow type main shaft 12；Thus, when toothed disc 14 drives main shaft 12 to rotate by driving, institute
State cutter head assembly 500 and rotation is driven by main shaft 12, and then realize the overall groove operation of pipe circumferencial direction.
In addition, in the present embodiment, the axial transmission mechanism 3 is arranged to penetrate in the guide pin bushing 15 and main shaft 12,
And the axial rack 4 is connected in main shaft 12 with the axial transmission mechanism 3.Meanwhile it is driven in cutter head assembly 500
During rotation, the axial rack 4 and the axial transmission mechanism 3 fixed with the axial phase of rack 4 are necessarily driven to rotate.
But because the cylinder 16 in pedestal 1 is arranged to fix with the phase of casing 11, so as to be fixed on the guide pillar axle on cylinder 16
161 and motor relative main 12 and cutter head assembly 500 be axial direction transmission that is static, being thus engaged with guide pillar axle 161
Mechanism 3 has part-structure to be also arranged to only move axially along guide pillar axle 161, and without rotation.
To adapt to foregoing rotary drive setting simultaneously and being axially driven set, in the present embodiment, the axial direction transmission
Mechanism 3 is arranged to include the sliding block 31 being engaged with leading screw 2, the bearing 32 being fixed in sliding block 31, is fixed in bearing 32
Adapter sleeve 33 and be enclosed on the outside of leading screw 2 and the guide pillar 34 fixed with the phase of adapter sleeve 33.Wherein, in the sliding block 31 and cylinder 16
Guide pillar axle 161 be slidably matched.The axial rack 4 is fixedly connected with the phase of guide pillar 34.The guide pillar 34 is square columnar design,
The guide pin bushing 15 is provided with the square hole being engaged with guide pillar 34, thus, when main shaft 12 rotates and drives guide pin bushing 15 to rotate, with guide pin bushing
15 guide pillars 34 coordinated using square hole are also driven to rotate, and then guide pillar 34 drives adapter sleeve 33 to rotate；But because there is bearing
32 are arranged between adapter sleeve 33 and sliding block 31, so that the rotary motion of adapter sleeve 33 will not rotate with movable slider 31, enter
And the axial transmission mechanism 3 is caused to realize the separation of axial linear movement and rotary motion.
As known from the above, retraction mechanism 100 is entered in the present invention by axial running part and carries out radial direction transmission, conversion
The matching design of cutter head assembly 500, the radial direction for slope knife assembly 50 by the convert rotational motion of motor can be effectively realized
Linear motion, and the driven Design of the axial rack 4 of use and radial direction rack 54 can be effectively increased the mobile row of slope knife assembly 50
Journey, and then cause the present invention to enter the groove operation that retraction mechanism 100 is suitable for the thicker pipe of tube wall；In addition, using axial tooth
The cooperation transmission of bar 4, conjugate tooth 53 and radial direction rack 54, may be such that shift motion is more precisely controlled, Jin Erti
High pipe groove accuracy and quality；In addition, to enter the overall construction design of withdrawing 100 simple, easy for installation by the present invention.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (10)
1. a kind of enter retraction mechanism for end surface beveller, it is characterised in that：It is described enter retraction mechanism include pedestal and and base
The cutter head assembly that seat is equipped with；Motor is provided with the pedestal, is fixed on the leading screw and silk of motor output end
Thick stick, which matches, to be merged the axial transmission mechanism that can be slided along leading screw axial direction, is arranged on the axial tooth of axial transmission mechanism output end
Bar, the axial rack are protruded into cutter head assembly；The cutter head assembly has the cutterhead to be interfixed along leading screw axial direction
Connecting seat and cutterhead, it is fixed in cutterhead connecting seat and side engages the conjugate tooth and conjugate tooth of setting with axial rack
Opposite side is meshed and vertical axial rack is set radial direction rack, it is slidably arranged on cutterhead and mutually fixed with radial direction rack
Slide, the connector for being fixedly connected with radial direction rack and slide and the slope knife assembly being fixed on slide, the cutterhead are provided with for connecting
The fluting that fitting passes through.
2. according to claim 1 enter retraction mechanism for end surface beveller, it is characterised in that：The cutterhead connecting seat
A perforation is axially provided through along leading screw, the cutter head assembly is additionally provided with the gear fixed seat being fixed in perforation, described common
Yoke gear is fixed in the gear fixed seat, the axial rack be extended through the gear fixed seat and with the conjugation
Gear is engaged, and the radial direction rack is provided with the slot to make way stretched into for axial rack.
3. according to claim 2 enter retraction mechanism for end surface beveller, it is characterised in that：The gear fixed seat
A roller is further fixed on away from the side of conjugate tooth in axial rack, the roller supports axial rack.
4. according to claim 1 enter retraction mechanism for end surface beveller, it is characterised in that：The cutterhead connecting seat
On be fixed with the guide rail being be arranged in parallel with radial direction rack, be fixed with the cunning being slidably matched with the guide rail on the radial direction rack
Block.
5. according to claim 4 enter retraction mechanism for end surface beveller, it is characterised in that：The radial direction rack is in
Rectangular box shape designs, and is formed as the slot to make way stretched into for axial rack among it, and two long sides are formed as nibbling with conjugate tooth
The tooth-strip part set is closed, the sliding block is arranged on two short sides.
6. according to claim 1 enter retraction mechanism for end surface beveller, it is characterised in that：The cutter head assembly is also
Include an extension spring, the extension spring is be arranged in parallel with radial direction rack and slide, and one end of extension spring is fixed on the cutterhead, separately
One end is fixed on the slide.
7. according to claim 1 enter retraction mechanism for end surface beveller, it is characterised in that：The pedestal includes case
Body, the hollow type main shaft being removably secured in casing, the roller bearing and and main shaft being arranged between casing and main shaft
Mutually fixed guide pin bushing, the axial transmission mechanism penetrate the guide pin bushing with main shaft, the axial rack in main shaft with it is described
Axial transmission mechanism is connected.
8. according to claim 7 enter retraction mechanism for end surface beveller, it is characterised in that：The cutterhead connecting seat
Mutually fixed with the main shaft.
9. according to claim 7 enter retraction mechanism for end surface beveller, it is characterised in that：The pedestal also includes
The cylinder being arranged on the outside of leading screw and the axis of guide being axially fixed in along leading screw in cylinder, the cylinder are mutually fixed with casing, institute
Stating axial transmission mechanism includes the sliding block being engaged with leading screw, the bearing being fixed in sliding block, the adapter sleeve being fixed in bearing
With the guide pillar for being enclosed on leading screw outside and mutually being fixed with adapter sleeve, the axial rack is connected with guide pillar.
10. according to claim 9 enter retraction mechanism for end surface beveller, it is characterised in that：The guide pillar is in side
Shape columnar design, the guide pin bushing are provided with the square hole being engaged with guide pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028759.5A CN105643338B (en) | 2015-01-20 | 2015-01-20 | Enter retraction mechanism for end surface beveller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028759.5A CN105643338B (en) | 2015-01-20 | 2015-01-20 | Enter retraction mechanism for end surface beveller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105643338A CN105643338A (en) | 2016-06-08 |
| CN105643338B true CN105643338B (en) | 2017-12-12 |
Family
ID=56481551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510028759.5A Active CN105643338B (en) | 2015-01-20 | 2015-01-20 | Enter retraction mechanism for end surface beveller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105643338B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333787B (en) * | 2021-05-31 | 2022-05-03 | 中国石油大学(华东) | Low-stress blanking device and method for synchronously grooving inside and outside of medium-diameter and large-diameter thick-wall pipe material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449844Y (en) * | 2000-11-30 | 2001-09-26 | 武汉市高雄电力设备有限公司 | Chamfering machine |
| DE102011008265A1 (en) * | 2011-01-11 | 2012-07-12 | Rabe Lasertechnik Gmbh | Apparatus for deburring or chamfering of cylindrical workpiece, has drive mechanism to adjust cutter processing tools uniformly within holes so as to adapt respective diameter of workpiece and to allow workpiece front end to face a roller |
| CN202655975U (en) * | 2012-03-30 | 2013-01-09 | 昆山市华奎机械电子有限公司 | Automatic opening trimming machine tool for piston ring |
| CN103341773B (en) * | 2013-07-12 | 2016-04-20 | 昆山华恒焊接股份有限公司 | For the advance and retreat cutter mechanism of electric beveling machine for pipes |
| CN204504846U (en) * | 2015-01-20 | 2015-07-29 | 昆山华恒焊接股份有限公司 | For the advance and retreat cutter mechanism of end surface beveller |
-
2015
- 2015-01-20 CN CN201510028759.5A patent/CN105643338B/en active Active
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| Publication number | Publication date |
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| CN105643338A (en) | 2016-06-08 |
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