CN204353675U - Collapsible dual rotary cutting mechanism - Google Patents
Collapsible dual rotary cutting mechanism Download PDFInfo
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- CN204353675U CN204353675U CN201420752986.3U CN201420752986U CN204353675U CN 204353675 U CN204353675 U CN 204353675U CN 201420752986 U CN201420752986 U CN 201420752986U CN 204353675 U CN204353675 U CN 204353675U
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- electromagnet
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- rotating shaft
- needle bearing
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Abstract
The purpose of this utility model is to provide collapsible dual rotary cutting mechanism, primarily of electromagnetic base, foldable structure, dual rotary mechanism, straight groove mechanism four part composition.Two electromagnet of electromagnetic base all pass through electromagnet swing span, realize between bearing block and base fixing, when needs are fixed in a certain magnetisable cambered surface to be processed, electromagnet can change the angle of deflection according to the size of cambered surface curvature, electromagnet and cambered surface is allowed to realize two linear contact lay, open electro-magnet switch, and then fix with surface upon adsorption.The utility model adopts dual rotary mechanism and straight groove mechanism controls burning torch end position in space and deflection angle.Adopt digital control scheme to control the rotation that motor drives each rotating shaft, make cutting accuracy higher, efficiency is higher.Adopt fold mechanism to realize cutting mechanism takes up room little in transfer process, the function of convenient transfer.In addition, the employing of electromagnetic base also makes the fixing and mobile convenient of cutting mechanism.
Description
Technical field
The utility model relates to a kind of cutting mechanism.
Background technology
Traditional cutting mechanism is divided into fixed (numerical control), portable (numerical control) and hand-held, fixed type cutting machine requires that workman shifts material to be cut, need to rely on the crane in factory, very inconvenient and dangerous, so just cause cutting efficiency lower.Traditional portable cutter carrys out X in control plane by two orthogonal guide rails, the position of Y-axis, and great majority can not complete the cutting of space curve, and fixed form determines that oneself is fixing loosely, there is potential safety hazard equally.And want to reach certain cut coverage, will strengthen the length of two guide rails, the space so taken is just larger, and moves inconvenience.Transfer is extremely convenient in hand-held cutting, but its track is determined by workman completely, extremely rely on the skills involved in the labour of workman, and efficiency is very low, and workman is very tired, causes production efficiency not high.Therefore all there is certain deficiency in existing cutting mechanism.
Summary of the invention
The purpose of this utility model is that being provided for solving existing cutting mechanism occupies the collapsible dual rotary cutting mechanism that space is large, shift inconvenience, the not high problem of cutting efficiency.
The purpose of this utility model is achieved in that
The collapsible dual rotary cutting mechanism of the utility model, it is characterized in that: comprise base, electromagnet swing span, electromagnet, horizontal arm, the first rotating shaft, the second rotating shaft, the second shaft rotating motor, parallelogram upper boom, parallelogram lower beam, slide rail plate, operation orifice plate, slide block, spindle motor, turntable, band sector plate, burning torch, vertical arm, vertical arm electric rotating machine, the electromagnet that can freely swing along electromagnet swing span is arranged on below base by electromagnet swing span, and described electromagnet and the electromagnet swing span be mated have two groups, second shaft rotating motor is fixed on motor fixing frame, the first end of horizontal arm connects the second shaft rotating motor by the second rotating shaft, the first end of parallelogram upper boom is all connected motor fixing frame with the first end of parallelogram lower beam, slide rail plate comprises the draw-in groove section be connected successively, segmental arc and straightway, draw-in groove section and segmental arc junction, the bottom of draw-in groove section and the bottom of straightway arrange the first needle bearing locating slot respectively, second needle bearing locating slot, 3rd needle bearing locating slot, second end of parallelogram upper boom installs the screw bolt-type needle bearing coordinated with the first needle bearing locating slot and the 3rd needle bearing locating slot, second end of parallelogram lower beam installs the screw bolt-type needle bearing coordinated with the second needle bearing locating slot, operation orifice plate respectively with parallelogram upper boom, parallelogram lower beam is connected with spindle motor, the output of spindle motor connects leading screw, leading screw matches with nut, nut is arranged on slide plate, slide plate and parallelogram upper boom fix, guide rail is fixed with between the draw-in groove section of slide rail plate and turntable, be connected with operation orifice plate with the slide block that guide rail coordinates, turntable electric rotating machine is fixed with below base, turntable electric rotating machine connects turntable by connection first rotating shaft, second end of vertical arm electric rotating machine and horizontal arm is fixed on motor rack, vertical arm electric rotating machine is by vertical arm rotating shaft vertical connecting arm, vertical arm is fixed with pinion motor, two screw bolt-type needle bearings are also installed below vertical arm, pinion motor connects pinion, band sector plate is arranged on two screw bolt-type needle bearings, two ends with sector plate arrange and coordinate spacing clamp with two screw bolt-type needle bearings, tooth with sector plate is meshed with pinion, burning torch is fixed on band sector plate by cutting gun rack.
Advantage of the present utility model is: the utility model adopts dual rotary mechanism and straight groove mechanism controls burning torch end position in space and deflection angle.Adopt digital control scheme to control the rotation that motor drives each rotating shaft, make cutting accuracy higher, efficiency is higher.Adopt fold mechanism to realize cutting mechanism takes up room little in transfer process, the function of convenient transfer.In addition, the employing of electromagnetic base also makes the fixing and mobile convenient of cutting mechanism.Compared with previous patent, the utility model Patent design is novel, and structure is simple, reliable, controls simple, is applicable to very much the base being made in the engineering machinery finished the work in iron material surface.
Accompanying drawing explanation
Fig. 1 is axonometric drawing of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is top view of the present utility model;
Fig. 4 is left view of the present utility model;
Fig. 5 is folded state diagram of the present utility model;
Fig. 6 is work of electromagnet state diagram of the present utility model;
Fig. 7 is that burning torch of the present utility model swings situation map a;
Fig. 8 is that burning torch of the present utility model swings situation map b.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 8, whole collapsible dual rotary cutting mechanism, primarily of electromagnetic base, fold mechanism, dual rotary mechanism and straight groove mechanism four part composition.Each parts are as follows: screw bolt-type needle bearing 1, band sector plate 2, bolt 3, cutting gun rack 4, vertical arm 5, vertical arm rotating shaft 6, vertical arm setscrew nut 7, bearing (ball) cover 8, bolt of cover 9, horizontal arm 10, motor rack set bolt 11, vertical arm electric rotating machine 12, motor rack 13, yielding coupling 14, bolt of cover 15, motor set bolt 16, rotating shaft two motor 17, stay bolt 18, motor fixing frame 19, yielding coupling 20, rotating shaft 2 21, parallelogram upper boom 22, parallelogram lower beam 23, screw bolt-type needle bearing 24, slide rail plate 25, operation orifice plate 26, slide block 27, spindle motor 28, guide rail bolt 29, support bracket bolt 30, needle bearing locating slot 31, slide rail board mount 32, turntable 33, bearing block 34, electromagnet swing span 35, electromagnet 36, support bracket bolt 37, turntable electric rotating machine 38, guide rail 39, rail brackets 40, leading screw 41, ball block 42, screw bolt-type needle bearing 43, motor fixing plate 44, bearing (ball) cover 45, key 46, motor shaft 47, pinion 48, burning torch 49, pinion electric rotating machine 50, guide rail bracket bolt 51, swivel mount 52, base 53, bearing housing 54, yielding coupling 55, handle 56, bolt of cover 57, end cap 58, bearing housing support 59.
Electromagnetic base is primarily of bearing block 34, and electromagnet swing span 35, electromagnet 36, turntable electric rotating machine 38, base 53, bearing housing 54, yielding coupling 55, handle 56, bolt of cover 57, bearing (ball) cover 58, bearing housing support 59 forms.Two electromagnet 36 of electromagnetic base all by electromagnet swing span 35, realize rotary motion pair between bearing block 34 with base 53 and be connected, when needs are fixed in a certain magnetisable cambered surface to be processed, two blocks of electromagnet 36 together can change the angle of deflection according to the size of cambered surface curvature, electromagnet 36 and cambered surface is allowed to realize two linear contact lay, then electro-magnet switch is opened, due to the attraction of electromagnet, realize whole cutting mechanism and surface upon adsorption is fixed.Turntable electric rotating machine 38 is bolted on base 53, bearing housing 54 is fixed on base 53 by bolt and bearing housing support 59, the bearing used in pairs is had in bearing housing 54, realize the axial and circumferential location of rotating shaft one, rotating shaft one is connected by yielding coupling 55 with motor 38, realizes the transmission of the first rotary motion.
Fold mechanism is primarily of horizontal arm 10, bolt of cover 15, motor set bolt 16, rotating shaft two motor 17, stay bolt 18, motor fixing frame 19, yielding coupling 20, rotating shaft 2 21, parallelogram upper boom 22, parallelogram lower beam 23, screw bolt-type needle bearing 24, slide rail plate 25, operation orifice plate 26, slide block 27, spindle motor 28, guide rail bolt 29, support bracket bolt 30, needle bearing locating slot 31, slide rail board mount 32, turntable 33, support bracket bolt 37, guide rail 39, rail brackets 40, screw bolt-type needle bearing 43, motor fixing plate 44, bearing (ball) cover 45, guide rail bracket bolt 51 forms.Folding process from duty to spare time is: horizontal arm 10 rotate until with the bar (22 of parallel-crank mechanism, 23) be parallel to each other, parallel-crank mechanism is first made to rotate along the arc orbit of slide rail plate 25 by mobile operation orifice plate 26, until the bar (22 in parallel-crank mechanism, 23) parallel with guide rail 39, stop the rotation along guide rail 39 vertically movement afterwards, until whole parallel-crank mechanism enters into the space in the middle of two slide rail plates 25, the screw bolt-type needle bearing 24 of both sides contacts with the needle bearing locating slot 31 on slide rail plate 25, simultaneously slide block 27 reaches guide rail 39 end of travel and can not continue slip again and complete folding.Reverse repetition above-mentioned steps is only needed from leisure state to the switching of duty.
Dual rotary mechanism is primarily of horizontal arm 10, bolt of cover 15, motor set bolt 16, rotating shaft two motor 17, stay bolt 18, motor fixing frame 19, yielding coupling 20, rotating shaft 2 21, parallelogram upper boom 22, parallelogram lower beam 23, screw bolt-type needle bearing 24, slide rail plate 25, operation orifice plate 26, slide block 27, spindle motor 28, guide rail bolt 29, support bracket bolt 30, needle bearing locating slot 31, slide rail board mount 32, turntable 33, support bracket bolt 37, turntable electric rotating machine 38, guide rail 39, rail brackets 40, leading screw 41, ball block 42, screw bolt-type needle bearing 43, motor fixing plate 44, bearing (ball) cover 45, guide rail bracket bolt 51, swivel mount 52, base 53, bolt of cover 57, bearing (ball) cover 58, bearing housing support 59 forms.Be connected by the first rotating shaft between turntable 33 with base 53, turntable 33 is vertically fixed with slide rail plate 25 and guide rail 39, parallel-crank mechanism is connected by screw bolt-type needle bearing 24 with slide rail plate 25 and rail brackets 40, the other end of parallel-crank mechanism is provided with rotating shaft two motor 17, motor drives rotating shaft 2 21 by yielding coupling 20, and rotating shaft 2 21 is connected with horizontal arm 10.Rotating shaft one is synergic rotation together with rotating shaft 2 21, determines the position of horizontal arm 10 end, and then makes burning torch end reach desired location, realizes cutting.
Straight groove mechanism, primarily of screw bolt-type needle bearing 1, is with sector plate 2, bolt 3, cutting gun rack 4, vertical arm 5, vertical arm rotating shaft 6, vertical arm setscrew nut 7, bearing (ball) cover 8, bolt of cover 9, horizontal arm 10, motor rack set bolt 11, vertical arm electric rotating machine 12, motor rack 13, yielding coupling 14, key 46, motor shaft 47, pinion 48, burning torch 49, pinion electric rotating machine 50 forms.Vertical turning arm is driven by the vertical arm electric rotating machine 12 of above-mentioned parallel-crank mechanism end, connected by vertical arm rotating shaft 6 between them, vertical arm 5 is fixed with pinion electric rotating machine 50, motor reel is provided with a pinion 48, be meshed with the gear on band sector plate 2, the deflection of rotating band sector plate 2, band sector plate 2 inner-diameter end has arc-shaped slide rail, be connected with vertical arm 5 by two screw bolt-type needle bearings 1, determine the swinging track of band sector plate 2.The control of the straight groove of burning torch 49 relies on the swing of the rotation of vertical arm 5 and band sector plate 2 together to realize, design with sector plate 2 is mainly for the consideration all constant relative to vertical arm 5 under arbitrarily angled of burning torch terminal position in process, so to the control of burning torch 49 end spaces optional position and the control of straight groove is separate opens, the realization controlled is convenient to.
Collapsible dual rotary cutting mechanism is primarily of electromagnetic base, foldable structure, dual rotary mechanism, straight groove mechanism four part composition.Two electromagnet of electromagnetic base all pass through electromagnet swing span, realize between bearing block and base fixing, when needs are fixed in a certain magnetisable cambered surface to be processed, electromagnet can change the angle of deflection according to the size of cambered surface curvature, electromagnet and cambered surface is allowed to realize two linear contact lay, open electro-magnet switch, and then fix with surface upon adsorption.
Slide rail plate in fold mechanism and guide rail are fixed by bolt and support and turntable, turntable is connected by key and is connected with the first rotating shaft in base, parallel-crank mechanism is fixed by the slide block on screw bolt-type needle bearing and guide rail and slide rail plate, the mutual alignment, one end of parallel-crank mechanism king-rod is determined by a pair folding operation orifice plate, and the other end is determined by the part of (pitch of holes of the pitch of holes biconditional operation plate on this part is identical) with holes, folding process from duty to spare time is as follows, horizontal arm rotates until be parallel to each other with the bar of parallel-crank mechanism, bar in parallel-crank mechanism and guide rail parallel is realized by mobile operation orifice plate, move along guide rail afterwards, until whole parallel-crank mechanism enters into the space in the middle of a pair slide rail plate, screw bolt-type needle bearing contacts with the location circular groove on slide rail plate, complete folding.Switching from folded state to duty only needs reverse repetition above-mentioned steps.
The turntable of dual rotary mechanism is connected by the first rotating shaft with between base, turntable is vertically fixed with slide rail plate and guide rail, parallel-crank mechanism is connected by screw bolt-type needle bearing with slide rail plate and rail brackets, the other end of parallel-crank mechanism is provided with electric rotating machine, motor drives rotating shaft two, and rotating shaft two is connected with horizontal arm.Rotating shaft one is synergic rotation together with rotating shaft two, determines the position of horizontal arm end, and then makes burning torch end reach desired location, realizes cutting.
The vertical turning arm of straight groove mechanism is driven by the motor of above-mentioned parallel-crank mechanism end, connected by rotating shaft between them, vertical turning arm is fixed with motor, motor reel is provided with a pinion, be meshed with the gear on arc plate, the deflection of drive arc plate, band sector plate inner-diameter end has arc-shaped slide rail, be connected with vertical turning arm by two screw bolt-type needle bearings, determine the swinging track of band sector plate.The control of the straight groove of burning torch relies on the swing of the rotation of vertical turning arm and band sector plate together to realize, the design of arc plate is mainly for the consideration all constant relative to vertical turning arm under arbitrarily angled of burning torch terminal position in process, so to the control of burning torch end spaces optional position and the control of straight groove is separate opens, the realization controlled is convenient to.
Two electromagnet of electromagnetic base all by electromagnet swing span, realize rotary motion pair between bearing block with base and be connected, when needs are fixed in a certain magnetisable cambered surface to be processed, two blocks of electromagnet together can change the angle of deflection according to the size of cambered surface curvature, electromagnet and cambered surface is allowed to realize two linear contact lay, then electro-magnet switch is opened, due to the attraction of electromagnet, realize whole cutting mechanism and surface upon adsorption is fixed.
Folding process from duty to spare time is: horizontal arm rotates until be parallel to each other with the bar of parallel-crank mechanism, parallel-crank mechanism is first made to rotate along the arc orbit of slide rail plate by mobile operation orifice plate, until bar in parallel-crank mechanism and guide rail parallel, stop the rotation along guide rail vertically movement afterwards, until whole parallel-crank mechanism enters into the space in the middle of a pair slide rail plate, screw bolt-type needle bearing contacts with the location circular groove on slide rail plate, and slide block reaches guide rail end of travel can not be continued slip again and complete folding.Reverse repetition above-mentioned steps is only needed from leisure state to the switching of duty.
Be connected by the first rotating shaft between turntable with base, turntable is vertically fixed with slide rail plate and guide rail, parallel-crank mechanism is connected by screw bolt-type needle bearing with slide rail plate and rail brackets, the other end of parallel-crank mechanism is provided with electric rotating machine, motor drives rotating shaft two, and rotating shaft two is connected with horizontal arm.Rotating shaft one is synergic rotation together with rotating shaft two, determines burning torch end X, the position of Y direction, is determined the position of burning torch end Z-direction, finally realize cutting by the lift action of parallel-crank mechanism.
Vertical turning arm is driven by the motor of parallel-crank mechanism end, connected by rotating shaft between them, vertical turning arm is provided with motor, motor reel is provided with a pinion, be meshed with the gear on arc plate, the deflection of drive arc plate, band sector plate inner-diameter end has arc-shaped slide rail, be connected with vertical turning arm by two screw bolt-type needle bearings, determine the swinging track of band sector plate.The control of the straight groove of burning torch relies on the swing of the rotation of vertical turning arm and band sector plate together to realize, the design of arc plate is mainly for the consideration all constant relative to vertical turning arm under arbitrarily angled of burning torch terminal position in process, so to the control of burning torch end spaces optional position and the control of straight groove is separate opens, the realization controlled is convenient to.
Electromagnetic base is primarily of two arc contact surface electromagnet, electromagnet swing span, bearing block, base, motor, shaft fixing device, and the first rotating shaft forms.Two electromagnet all pass through electromagnet swing span, realize between bearing block and base fixing, when needs are fixed in a certain magnetisable cambered surface to be processed, electromagnet can change the angle of deflection according to the size of cambered surface curvature, electromagnet and cambered surface is allowed to realize two linear contact lay, open electro-magnet switch, and then fix with surface upon adsorption.Fold mechanism forms primarily of slide rail plate, guide rail, parallelogram lifting mechanism, motor and horizontal arm.Slide rail plate and guide rail are fixed by bolt and support and turntable, turntable is connected by key and is connected with the first rotating shaft in base, parallel-crank mechanism is fixed by the slide block on screw bolt-type needle bearing and guide rail and slide rail plate, the mutual alignment, one end of parallel-crank mechanism king-rod is determined by a pair folding operation orifice plate, and the other end is determined by the part of (pitch of holes of the pitch of holes biconditional operation plate on this part is identical) with holes, folding process from duty to spare time is as follows, horizontal arm rotates until be parallel to each other with the bar of parallel-crank mechanism, bar in parallel-crank mechanism and guide rail parallel is realized by mobile operation orifice plate, move along guide rail afterwards, until whole parallel-crank mechanism enters into the space in the middle of a pair slide rail plate, screw bolt-type needle bearing contacts with the location circular groove on slide rail plate, complete folding.Reverse repetition above-mentioned steps is only needed from leisure state to the switching of duty.Dual rotary mechanism is primarily of turntable, slide rail plate, guide rail, slide block, parallelogram lifting mechanism, motor, horizontal arm composition.Be connected by the first rotating shaft between turntable with base, turntable is vertically fixed with slide rail plate and guide rail, parallel-crank mechanism is connected by screw bolt-type needle bearing with slide rail plate and rail brackets, the other end of parallel-crank mechanism is provided with electric rotating machine, motor drives rotating shaft two, and rotating shaft two is connected with horizontal arm.Rotating shaft one is synergic rotation together with rotating shaft two, determines the position of horizontal arm end, and then makes burning torch end reach desired location, realizes cutting.Straight groove mechanism forms primarily of vertical turning arm, motor, pinion, band sector plate, cutting gun rack and burning torch.Vertical turning arm is driven by the motor of above-mentioned parallel-crank mechanism end, connected by rotating shaft between them, vertical turning arm is fixed with motor, motor reel is provided with a pinion, be meshed with the gear on arc plate, the deflection of drive arc plate, band sector plate inner-diameter end has arc-shaped slide rail, be connected with vertical turning arm by two screw bolt-type needle bearings, determine the swinging track of band sector plate.The control of the straight groove of burning torch relies on the swing of the rotation of vertical turning arm and band sector plate together to realize, the design of arc plate is mainly for the consideration all constant relative to vertical turning arm under arbitrarily angled of burning torch terminal position in process, so to the control of burning torch end spaces optional position and the control of straight groove is separate opens, the realization controlled is convenient to.
Claims (1)
1. collapsible dual rotary cutting mechanism, it is characterized in that: comprise base, electromagnet swing span, electromagnet, horizontal arm, the first rotating shaft, the second rotating shaft, the second shaft rotating motor, parallelogram upper boom, parallelogram lower beam, slide rail plate, operation orifice plate, slide block, spindle motor, turntable, band sector plate, burning torch, vertical arm, vertical arm electric rotating machine, the electromagnet that can freely swing along electromagnet swing span is arranged on below base by electromagnet swing span, and described electromagnet and the electromagnet swing span be mated have two groups, second shaft rotating motor is fixed on motor fixing frame, the first end of horizontal arm connects the second shaft rotating motor by the second rotating shaft, the first end of parallelogram upper boom is all connected motor fixing frame with the first end of parallelogram lower beam, slide rail plate comprises the draw-in groove section be connected successively, segmental arc and straightway, draw-in groove section and segmental arc junction, the bottom of draw-in groove section and the bottom of straightway arrange the first needle bearing locating slot respectively, second needle bearing locating slot, 3rd needle bearing locating slot, second end of parallelogram upper boom installs the screw bolt-type needle bearing coordinated with the first needle bearing locating slot and the 3rd needle bearing locating slot, second end of parallelogram lower beam installs the screw bolt-type needle bearing coordinated with the second needle bearing locating slot, operation orifice plate respectively with parallelogram upper boom, parallelogram lower beam is connected with spindle motor, the output of spindle motor connects leading screw, leading screw matches with nut, nut is arranged on slide plate, slide plate and parallelogram upper boom fix, guide rail is fixed with between the draw-in groove section of slide rail plate and turntable, be connected with operation orifice plate with the slide block that guide rail coordinates, turntable electric rotating machine is fixed with below base, turntable electric rotating machine connects turntable by connection first rotating shaft, second end of vertical arm electric rotating machine and horizontal arm is fixed on motor rack, vertical arm electric rotating machine is by vertical arm rotating shaft vertical connecting arm, vertical arm is fixed with pinion motor, two screw bolt-type needle bearings are also installed below vertical arm, pinion motor connects pinion, band sector plate is arranged on two screw bolt-type needle bearings, two ends with sector plate arrange and coordinate spacing clamp with two screw bolt-type needle bearings, tooth with sector plate is meshed with pinion, burning torch is fixed on band sector plate by cutting gun rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752986.3U CN204353675U (en) | 2014-12-03 | 2014-12-03 | Collapsible dual rotary cutting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752986.3U CN204353675U (en) | 2014-12-03 | 2014-12-03 | Collapsible dual rotary cutting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204353675U true CN204353675U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752986.3U Withdrawn - After Issue CN204353675U (en) | 2014-12-03 | 2014-12-03 | Collapsible dual rotary cutting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN204353675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476046A (en) * | 2014-12-03 | 2015-04-01 | 哈尔滨工程大学 | Foldable double-rotation cutting mechanism |
| CN106769332A (en) * | 2017-02-11 | 2017-05-31 | 中国矿业大学(北京) | A kind of multifunction sample process equipment and application method |
-
2014
- 2014-12-03 CN CN201420752986.3U patent/CN204353675U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476046A (en) * | 2014-12-03 | 2015-04-01 | 哈尔滨工程大学 | Foldable double-rotation cutting mechanism |
| CN106769332A (en) * | 2017-02-11 | 2017-05-31 | 中国矿业大学(北京) | A kind of multifunction sample process equipment and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150527 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |