CN109079339A - A kind of single track four-head laser cutting machine - Google Patents
A kind of single track four-head laser cutting machine Download PDFInfo
- Publication number
- CN109079339A CN109079339A CN201811117884.3A CN201811117884A CN109079339A CN 109079339 A CN109079339 A CN 109079339A CN 201811117884 A CN201811117884 A CN 201811117884A CN 109079339 A CN109079339 A CN 109079339A
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- China
- Prior art keywords
- center
- block
- laser cutting
- head
- laser
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a kind of single track four-head laser cutting machines, including board, the laser cutting structure being mounted on board, conveyer belt and binder roll structure, the laser cutting structure includes the interior block for being fixed in the inside both ends of board, lead screw is connected between described interior piece of medial end center, there are four laser heads for socket at the outer wall center of lead screw, outer piece of the outboard end is connected with frame, the outboard end of frame is connected with motor, the inner wall of the set block is socketed with loop bar, loop bar is connect with set block gap, the left and right ends of loop bar are connected with first and connect block, first outboard end for connecing block is connected with lateral mass, the second strut is connected at the bottom center of lateral mass, it is fixedly connected at the bottom end of second strut and interior piece of top center.The present invention, by the cooperation of lead screw and laser head, can at work be blowed laser head when needing to carry out cutting work by the device, and flue gas is avoided to contact laser head, prevent long-time laser head from generating damage.
Description
Technical field
The present invention relates to laser cutting machine technical field, specially a kind of single track four-head laser cutting machine.
Background technique
Single track four-head laser cutting machine is that the laser that will launch from laser through light path system it is close to be focused into high power
The laser beam of degree, laser beam are irradiated to workpiece surface, and workpiece is made to reach fusing point or boiling point, while the high pressure gas coaxial with light beam
Fusing or gasified metal are blown away, laser cutting process is that have precision instead of traditional mechanical blades with sightless light beam
The features such as height, cutting quickly, are not limited to cutting pattern limitation, and Automatic Typesetting saves material, and notch is smooth, and processing cost is low,
Traditional metal cutting processes equipment will be gradually improved or is replaced in, the mechanical part and workpiece of laser probe are contactless, in work
Workpiece surface will not be caused to scratch in work；Laser cutting speed is fast, and smooth cut is smooth, is generally not necessarily to following process；Cutting
Heat affected area is small, and sheet deformation is small, and joint-cutting is narrow (0.1mm~0.3mm)；Notch does not have mechanical stress, no shear burr；Processing essence
Degree is high, reproducible, not attacking material surface；Arbitrary plan view can be processed in numerical control programming, whole plate that can be very big to breadth
Cutting is not necessarily to mold, economical time saving, but at work, and laser, which cut cut substrate, can generate flue gas, flue gas with it is sharp
Shaven head is contacted, and is easy to produce damage for a long time.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of single track four-head laser cutting machine
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of single track four-head laser cutting machine, including machine
Platform, the laser cutting structure being mounted on board, conveyer belt and binder roll structure, the laser cutting structure and binder roll structure
Above conveyer belt, the laser cutting structure includes the interior block for being fixed in the inside top left and right ends of board, described for installation
Lead screw is connected between interior piece of medial end center, there are four what is be arranged side by side to swash for socket at the outer wall center of the lead screw
Shaven head, the laser head are connect with lead screw gap, and center-pole is connected at the top center of the laser head, the center-pole
Top is connected with central block, and the outboard end of the central block is connected with outer piece, and outer piece of the outboard end is connected with frame,
The outboard end of the frame is connected with motor, is connected with the first bull stick on the inside of the bottom end of the motor, first bull stick
Bottom inside is connected with flabellum, and the first strut is connected at the top center of the central block, and the top of first strut is solid
It is connected to set block, the inner wall of the set block is socketed with loop bar, and the loop bar is connect with set block gap, and the left and right ends of the loop bar are equal
It is connected with first and connects block, the described first outboard end for connecing block is connected with lateral mass, and is connected at the bottom center of the lateral mass
It is fixedly connected at two struts, the bottom end of second strut and interior piece of top center.
Preferably, it is hinged with visual upper cover made of transparent glass plastic material on the board, cutting can be observed in real time
The progress of work.
Preferably, it is connected with second at interior piece of the bottom center and connects block, the described second bottom end for connecing block is connected with bullet
Spring, the bottom end of the spring are connected with bracket, and the bottom of the bracket is connected with the second bull stick, in the outer wall of second bull stick
Round roller is socketed at the heart, the round roller is connect with the second bull stick gap.
Preferably, the front center bottom of the bracket is connected with pull rod.
Preferably, pedestal is connected at left and right sides of the bottom end of the board.
Preferably, gasket is connected at the medial end center of second strut.
Compared with prior art, the beneficial effects of the present invention are: the single track four-head laser cutting machine, when being cut
When work, by the cooperation of lead screw and laser head, lead screw is ball-screw, ball-screw be on machine tool and precision machinery most
The actuated element being often used, major function are to convert rotational motion to linear movement, or torque is converted into axially repeatedly
Active force, ball-screw are widely used in various industrial equipments and precision instrument, and lead screw is used to that laser head is driven to be moved,
The laser that laser head is launched by laser is focused into the laser beam of high power density, four laser heads can be same through light path system
When work, improve cutting efficiency, motor by the first bull stick drive flabellum rotated, wind-force is generated by flabellum, can be to laser
Head is blowed, and laser head can be blowed at work by the device, avoids flue gas from contacting laser head, prevents from growing
Time laser head generates damage, and is equipped with binder roll structure, pushes down required cutting material, prevents cutting material in work process
Displacement is generated, cutting accuracy is improved.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is present invention laser cutting structural schematic diagram；
Fig. 3 is the connection structure enlarged drawing of two lead screw of figure and laser head；
Fig. 4 is the connection structure enlarged drawing of two bracket of figure and the second bull stick and round roller.
In figure: 1, board；2, it is cut by laser structure；3, conveyer belt；4, binder roll structure；5, visual upper cover；6, pedestal；
21, the first bull stick；22, interior piece；23, lead screw；24, laser head；25, center-pole；26, central block；27, outer piece；28, frame；29,
Motor；211, flabellum；212, the first strut；213, block is covered；214, loop bar；215, first block is connect；216, lateral mass；217, second
Bar；218, second block is connect；219, spring；220, bracket；221, the second bull stick；222, round roller；223, pull rod；224, gasket.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of single track four-head laser cutting machine, including board 1,
Laser cutting structure 2, conveyer belt 3 and the binder roll structure 4 being mounted on board, the laser cutting structure 2 and nip rolls knot
Structure 4 is mounted on 3 top of conveyer belt, is connected with pedestal 6 at left and right sides of the bottom end of board 1, pedestal 6 can make board 1 more stable
Be supported on ground, visual upper cover 5 made of transparent glass plastic material is hinged on the board 1, cutting can be observed in real time
The progress of work, the laser cutting structure 2 includes the interior block 21 for being fixed in the inside top left and right ends of board 1, described interior
Lead screw 23 is connected between the medial end center of block 21, there are four what is be arranged side by side to swash for socket at the outer wall center of lead screw 23
Shaven head 24, lead screw 23 are ball-screw, and ball-screw is actuated element most-often used on machine tool and precision machinery, master
Want function be convert rotational motion to linear movement, or torque is converted into axial repeated action power, while have both high-precision,
Invertibity and efficient feature, due to the frictional resistance with very little, ball-screw is widely used in various industrial equipments
And precision instrument, lead screw 23 are used to that laser head 24 is driven to be moved, laser head 24 is connect with 23 gap of lead screw, laser head 24
Center-pole 25 is connected at the center of top, the laser that laser head 24 is launched by laser is focused into high power through light path system
The laser beam of density, laser beam are irradiated to workpiece surface, and workpiece is made to reach fusing point or boiling point, and laser cutting process is with invisible
Light beam instead of traditional mechanical blades, have that precision is high, quickly, the top of center-pole 25 is connected with central block 26 for cutting, in
The outboard end of heart block 26 is connected with outer piece 27, and center-pole 25 is used to for central block 26 being fixed on laser head 24, central block 26 by
Outer piece of 27 connection frameworks 28, frame 28 are used to fixing motor 29, and outer piece 27 of outboard end is connected with frame 28, frame 28 it is outer
Side end is connected with motor 29, is connected with the first bull stick 21 on the inside of the bottom end of motor 29, the bottom inside of the first bull stick 21 is affixed
There is flabellum 211, motor 29 is motor, engine, and working principle is that Forced rotation drives in magnetic field by hot-wire coil
Starter armature rotates, and the pinion gear on rotor drives engine flywheel rotation, and motor 29 drives flabellum 211 by the first bull stick 21
It is rotated, wind-force is generated by flabellum 211, laser head 24 can be blowed, be connected at the top center of central block 26
First strut 212, the top of the first strut 212 are connected with set block 213, and the inner wall of set block 213 is socketed with loop bar 214, loop bar
214 connect with set 213 gap of block, and the first strut 212, which is used to that block 213 will be covered, is fixed on central block 26, and loop bar 214 can be socketed in
It reciprocatingly slides inside set block 213, can be more smooth and steady when moving, the left and right ends of loop bar 214 are connected with first
Block 215 is connect, the first outboard end for connecing block 215 is connected with lateral mass 216, the second strut is connected at the bottom center of lateral mass 216
217, loop bar 214 connects block 215 by first and connects lateral mass 216, and lateral mass 216 is fixed by the second strut 217 with interior piece 22, side
Block 216 can be used to fix loop bar 214, and gasket 224, the material of gasket 224 are connected at the medial end center of the second strut 217
Matter is rubber, by the characteristic of rubber, abrasion when can prevent from being bonded with the second strut 217 when motor 29 slides, and second
It is fixedly connected at the bottom end of bar 217 and interior piece 22 of top center, second is connected at interior piece 22 of bottom center and connects block 218,
Second bottom end for connecing block 218 is connected with spring 219, and spring 219 is that compressed spring can be downward by the characteristic of compressed spring
It carrying out pushing bracket 220, the bottom end of spring 219 is connected with bracket 220, and the bottom of bracket 220 is connected with the second bull stick 221, the
Round roller 222 is socketed at the outer wall center of two bull sticks 221, round roller 222 can be rotated in 221 outer wall of the second bull stick, round roller
222 connect with 221 gap of the second bull stick, and round roller 222 can be bonded by the promotion of spring 219 with cut substrate, and round roller 222 can be square
Just cutting work is carried out, the front center bottom of bracket 220 is connected with pull rod 223, and pull rod 223, which facilitates, carries out pulling bracket
220 are moved.
The single track four-head laser cutting machine passes through the cooperation of lead screw and laser head, lead screw when needing to carry out cutting work
For ball-screw, ball-screw is actuated element most-often used on machine tool and precision machinery, and major function is will to revolve
Transhipment turn changes linear movement into, or torque is converted into axial repeated action power, and ball-screw is widely used in various works
Industry equipment and precision instrument, lead screw are used to that laser head is driven to be moved, the laser that laser head is launched by laser, through optical path
System is focused into the laser beam of high power density, and four laser heads are simultaneously operable, and improves cutting efficiency, motor is by first turn
Bar drives flabellum to be rotated, and generates wind-force by flabellum, laser head can be blowed, can be at work by the device
Laser head is blowed, flue gas is avoided to contact laser head, prevents long-time laser head from generating damage, and be equipped with nip rolls knot
Structure pushes down required cutting material, prevents cutting material from generating displacement in work process, improves cutting accuracy.
In the description of the present invention, it is to be understood that, term " coaxial ", " bottom ", " one end ", " top ", " middle part ",
The orientation or positional relationship of the instructions such as " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ",
Terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of single track four-head laser cutting machine, it is characterised in that: including board (1), the laser cutting knot being mounted on board
Structure (2), conveyer belt (3) and binder roll structure (4), the laser cutting structure (2) and binder roll structure (4) are mounted on conveyer belt
(3) top, laser cutting structure (2) includes the interior block (22) for being fixed in the inside top left and right ends of board (1), described
It is connected between interior piece (22) of medial end center lead screw (23), at the outer wall center of the lead screw (23) there are four sockets
Laser head (24) arranged side by side, the laser head (24) connect with lead screw (23) gap, in the top of the laser head (24)
It is connected at the heart center-pole (25), the top of the center-pole (25) is connected with central block (26), outside the central block (26)
Side end is connected with outer piece (27), and the outboard end of outer piece (27) is connected with frame (28), the outside of the frame (28)
End is connected with motor (29), is connected with the first bull stick (21) on the inside of the bottom end of the motor (29), first bull stick (21)
Bottom inside be connected with flabellum (211), be connected with the first strut (212) at the top center of the central block (26), it is described
The top of first strut (212) is connected with set block (213), and the inner wall of the set block (213) is socketed with loop bar (214), the set
Bar (214) is connect with set block (213) gap, and the left and right ends of the loop bar (214) are connected with first and connect block (215), described
First outboard end for connecing block (215) is connected with lateral mass (216), is connected with second at the bottom center of the lateral mass (216)
Bar (217) is fixedly connected at the bottom end and interior piece (22) of top center of second strut (217).
2. a kind of single track four-head laser cutting machine according to claim 1, it is characterised in that: hinged on the board (1)
There is visual upper cover (5) made of transparent glass plastic material.
3. a kind of single track four-head laser cutting machine according to claim 1, it is characterised in that: the bottom end of interior piece (22)
It is connected with second at center to connect block (218), the described second bottom end for connecing block (218) is connected with spring (219), the spring
(219) bottom end is connected with bracket (220), and the bottom of the bracket (220) is connected with the second bull stick (221), and described second turn
It is socketed at the outer wall center of bar (221) round roller (222), the round roller (222) connect with the second bull stick (221) gap.
4. a kind of single track four-head laser cutting machine according to claim 2, it is characterised in that: the bracket (220) is just
Bottom is connected with pull rod (223) at the center of face.
5. a kind of single track four-head laser cutting machine according to claim 1, it is characterised in that: the bottom end of the board (1)
The left and right sides is connected with pedestal (6).
6. a kind of single track four-head laser cutting machine according to claim 1, it is characterised in that: second strut (217)
Medial end center at be connected with gasket (224).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117884.3A CN109079339A (en) | 2018-09-22 | 2018-09-22 | A kind of single track four-head laser cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117884.3A CN109079339A (en) | 2018-09-22 | 2018-09-22 | A kind of single track four-head laser cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109079339A true CN109079339A (en) | 2018-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117884.3A Pending CN109079339A (en) | 2018-09-22 | 2018-09-22 | A kind of single track four-head laser cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109079339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547227A (en) * | 2021-07-05 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | High-precision intelligent laser cutting equipment for high-strength stainless steel material |
| CN114654731A (en) * | 2022-02-17 | 2022-06-24 | 郜富强 | 3D prints and unloads bottom plate with product |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202862278U (en) * | 2012-09-12 | 2013-04-10 | 刘新和 | Cylinder transmission device and cylinder cutting machine or cylinder carving machine |
| CN203751532U (en) * | 2014-01-27 | 2014-08-06 | 张俊广 | Abrasive paper feeding laser cutting machine |
| CN105562940A (en) * | 2014-10-12 | 2016-05-11 | 黑龙江省康格尔科技有限公司 | Electrically controlled mechanical type cutting machine |
| CN106141459A (en) * | 2015-03-25 | 2016-11-23 | 深圳中集智能科技有限公司 | Self adaptation laser cutting machine cutting head protection device |
| WO2018002670A1 (en) * | 2016-06-30 | 2018-01-04 | Blackman & White Limited | Laser cutters and laser cutting systems |
| CN108080797A (en) * | 2017-11-09 | 2018-05-29 | 江苏新光数控技术有限公司 | A kind of dust suction environmental protection marking machine |
| CN108247211A (en) * | 2018-01-18 | 2018-07-06 | 海宁市晨丰橡塑有限公司 | A kind of hardware products laser carving device |
| CN108311798A (en) * | 2018-01-29 | 2018-07-24 | 海宁杰盛新材料有限公司 | A kind of coating composite material is with cutting out equipment |
| CN207735787U (en) * | 2017-12-29 | 2018-08-17 | 苏州闽国纺织科技有限公司 | The large-scale cloth cutter device of weaving |
-
2018
- 2018-09-22 CN CN201811117884.3A patent/CN109079339A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202862278U (en) * | 2012-09-12 | 2013-04-10 | 刘新和 | Cylinder transmission device and cylinder cutting machine or cylinder carving machine |
| CN203751532U (en) * | 2014-01-27 | 2014-08-06 | 张俊广 | Abrasive paper feeding laser cutting machine |
| CN105562940A (en) * | 2014-10-12 | 2016-05-11 | 黑龙江省康格尔科技有限公司 | Electrically controlled mechanical type cutting machine |
| CN106141459A (en) * | 2015-03-25 | 2016-11-23 | 深圳中集智能科技有限公司 | Self adaptation laser cutting machine cutting head protection device |
| WO2018002670A1 (en) * | 2016-06-30 | 2018-01-04 | Blackman & White Limited | Laser cutters and laser cutting systems |
| CN108080797A (en) * | 2017-11-09 | 2018-05-29 | 江苏新光数控技术有限公司 | A kind of dust suction environmental protection marking machine |
| CN207735787U (en) * | 2017-12-29 | 2018-08-17 | 苏州闽国纺织科技有限公司 | The large-scale cloth cutter device of weaving |
| CN108247211A (en) * | 2018-01-18 | 2018-07-06 | 海宁市晨丰橡塑有限公司 | A kind of hardware products laser carving device |
| CN108311798A (en) * | 2018-01-29 | 2018-07-24 | 海宁杰盛新材料有限公司 | A kind of coating composite material is with cutting out equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547227A (en) * | 2021-07-05 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | High-precision intelligent laser cutting equipment for high-strength stainless steel material |
| CN114654731A (en) * | 2022-02-17 | 2022-06-24 | 郜富强 | 3D prints and unloads bottom plate with product |
| CN114654731B (en) * | 2022-02-17 | 2023-12-05 | 南京嘉翼精密机器制造股份有限公司 | Product unloading bottom plate for 3D printing |
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Application publication date: 20181225 |