CN209811490U - Solid hazardous chemical substance cutting device based on femtosecond laser - Google Patents
Solid hazardous chemical substance cutting device based on femtosecond laser Download PDFInfo
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- CN209811490U CN209811490U CN201920648152.0U CN201920648152U CN209811490U CN 209811490 U CN209811490 U CN 209811490U CN 201920648152 U CN201920648152 U CN 201920648152U CN 209811490 U CN209811490 U CN 209811490U
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- femtosecond laser
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Abstract
The utility model discloses a solid danger article cutting device based on femto second laser, the device includes: the device comprises a frame (14), a bed body (13), a Y-axis direction linear motion mechanism (1), an X-axis direction linear motion mechanism (2), a direct-drive rotary table (3), an auxiliary support (15), a seal tank (4), a Z-axis direction linear motion mechanism (7), a scanning galvanometer (5), a movable reflecting mirror (11), an optical mounting plate (9), a second laser (6), a mirror group box (8) and a dust collector (10); the safe cutting of dangerous chemicals of specific specification can be realized through this device.
Description
Technical Field
The utility model relates to an old and useless danger article processing field specifically relates to a solid danger article cutting device based on femto second laser.
Background
For historical reasons, a portion of hazardous chemicals or explosives are left in place. As more and more dangerous chemicals or explosives are discovered, their safety disposal issues are attracting attention due to their incomplete status attribute information. Some explosives can be destroyed by detonation, but there is a portion of hazardous chemicals that are not suitable for detonation destruction due to the inclusion of highly toxic chemicals. For such hazardous chemicals, disposal is generally carried out by means of dismantling.
At present, the method for removing the waste hazardous chemical substances by adopting a high-pressure water jet technology is the most efficient and economic method for treating the waste hazardous chemical substances and is widely applied to various countries in the world. However, due to the particularity of the hazardous chemical substance, the high-energy beam jet of the water jet impacts the hazardous chemical substance, so that the hazardous chemical substance can explode; in addition, the high-pressure water jet easily causes environmental pollution, has potential safety hazard in multi-person operation, and often has casualty accidents.
The femtosecond laser has extremely short pulse width and extremely high peak power, the pulse width is shorter than the thermal relaxation time (ps magnitude) of the material crystal lattice, and the peak power can reach GW magnitude. When the material acts with the laser photon, the laser photon directly destroys the bond of the target material, the absorption and movement modes of electrons are changed by the instant high energy density deposition, and the influence of laser linear absorption, energy transfer, diffusion and the like is avoided, so that the interaction mechanism of the laser and the substance is fundamentally changed, and the non-hot melting processing of the material is realized. Non-hot melt processing by femtosecond lasers can be said to be a "cold" process. The characteristic of non-hot-melting cold processing of femtosecond laser brings a new technical approach for the disassembly and disposal of solid hazardous chemical substances, and the safe green cold processing without heat transfer and low impact pressure can meet the requirements of the disassembly and disposal of the hazardous chemical substances.
A few domestic scientific research units develop primary micro-processing demonstration experiments of energetic material substitutes, but no deep research scheme for femtosecond laser processing of energetic materials and disassembly treatment of solid hazardous chemicals exists. The utility model provides a solid danger article cutting device based on femto second laser can realize the safe cutting of danger article of specific specification.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solid danger article cutting device based on femto second laser can realize the safe cutting of danger article of specific specification.
In order to realize the above utility model purpose, this application provides a solid danger article cutting device based on femto second laser, the device includes:
the device comprises a frame, a lathe bed, a Y-axis direction linear motion mechanism, an X-axis direction linear motion mechanism, a direct-drive rotary table, an auxiliary support, a sealing tank, a Z-axis direction linear motion mechanism, a scanning galvanometer, a movable reflecting mirror, an optical mounting plate, a second laser, a mirror group box and a dust collector;
the lathe bed is placed on the frame, a Y-axis direction linear motion mechanism or an X-axis direction linear motion mechanism is fixed on the lathe bed, when the Y-axis direction linear motion mechanism is fixed on the lathe bed, the X-axis direction linear motion mechanism is fixed on the table top of the Y-axis direction linear motion mechanism, and the Y-axis direction linear motion mechanism is used for adjusting the linear motion of the X-axis direction linear motion mechanism in the Y-axis direction of the water surface; when the X-axis direction linear motion mechanism is fixed on the lathe bed, the Y-axis direction linear motion mechanism is fixed on the table top of the X-axis direction linear motion mechanism, and the X-axis direction linear motion mechanism is used for adjusting the linear motion of the Y-axis direction linear motion mechanism in the X-axis direction of the water surface;
the direct-drive rotary table is fixed on a table top of the Y-axis direction linear motion mechanism and the X-axis direction linear motion mechanism, which is positioned above the mechanism, the end face of an A shaft in the direct-drive rotary table is provided with a solid hazardous chemical substance, an auxiliary support is arranged below the solid hazardous chemical substance, and the auxiliary support is fixedly connected with the table top of the mechanism, which is positioned above the Y-axis direction linear motion mechanism and the X-axis direction linear motion mechanism; the direct-drive rotary table, the solid hazardous chemical substance and the auxiliary support are sealed in the sealing tank; one end of the pipeline of the dust collector extends into the sealing tank;
the cross beam is fixedly arranged on the lathe bed, the Z-axis direction linear motion mechanism is positioned on the cross beam of the lathe bed, and the table surface of the Z-axis direction linear motion mechanism is fixedly connected with the cross beam; the Z-axis direction linear motion mechanism is used for performing vertical linear motion adjustment on a component arranged on the Z-axis direction linear motion mechanism; the scanning galvanometer is fixedly arranged on the table top of the Z-axis direction linear motion mechanism and is fixedly connected with the movable reflecting mirror; an optical mounting plate is fixedly mounted above the cross beam, and a femtosecond laser and a lens group box are fixedly mounted on the optical mounting plate; the femtosecond laser generates laser and cuts the solid hazardous chemical substances after the laser is transmitted through the lens group box.
The device is based on the structural design of a scanning cutting mode of rotating and vibrating mirrors, and is beneficial to heat dissipation and slag discharge of hazardous chemicals; the device adopts a sealing structure, can realize the atmosphere control in the sealing tank and ensure that toxic and harmful materials do not leak; the auxiliary support of the device is adjustable in height and can adapt to dangerous chemicals in a certain size change range.
Wherein, the utility model discloses a principle does: when the solid hazardous chemical substance needs to be cut, the solid hazardous chemical substance is arranged on the end face of an A shaft in a direct-drive rotary table, the A shaft is a direct-drive rotary table and is a rotary shaft, the rotary table is directly driven by an internal motor, and the solid hazardous chemical substance can be driven to rotate through the rotation of the rotary table, so that the solid hazardous chemical substance can be fully subjected to laser cutting by a femtosecond laser when the rotary table rotates; be fixed with Y axle direction linear motion mechanism or X axle direction linear motion mechanism on the lathe bed, can provide the removal of Y axle direction and X axle direction through Y axle direction linear motion mechanism or X axle direction linear motion mechanism, and then can provide the removal of Y axle direction and X axle direction for solid dangerous chemicals when the cutting, and this device still is equipped with Z axle direction linear motion mechanism and can carries out the linear motion adjustment of vertical direction to the part of installing above that, and then produce the cutting direction that laser carried out the transmission through the mirror group case to the femto second laser when the cutting and adjust, this device can realize the cutting adjustment in XYZ three orientation when the cutting promptly, make the degree of freedom of cutting and the rate of accuracy of cutting obtain the guarantee.
Further, this device is equipped with the auxiliary bearing and utilizes the auxiliary bearing to support solid danger article, guarantee the accuracy and the installation of cutting, utilizes the seal pot will directly drive revolving stage, solid danger article, auxiliary bearing seal wherein, can guarantee the security of cutting, and the pipeline one end of dust catcher extends to in the seal pot, can siphon away the powder that the cutting produced, further guarantees powder treatment and the security after the cutting is accomplished.
Furthermore, the ultrashort pulse laser output by the femtosecond laser is expanded to 20mm by the beam expander, transmitted to the scanning galvanometer by the reflector group, and finally focused to the surface of the workpiece by the field lens.
Further, the frame is specifically a steel frame, and a leveling pad is arranged below the steel frame.
Further, the lathe bed is specifically a marble lathe bed.
Furthermore, the height of the auxiliary support is adjustable.
Further, the scanning galvanometer is arranged on the table top of the Z-axis direction linear motion mechanism and is fixed through a screw; the Z-axis direction linear motion mechanism drives the scanning galvanometer to perform linear motion in the Z-axis direction.
Furthermore, the movable reflector is fixedly connected with the scanning galvanometer through screws.
Further, the optical mounting plate is fixedly mounted above the cross beam through screws.
Further, the femtosecond laser and the lens group box are fixedly arranged on the optical mounting plate through screws.
One or more technical solutions provided by the present application have at least the following technical effects or advantages:
by the device, the cutting and disassembling of the solid hazardous chemical substances with certain specifications can be realized, the cutting process is safe and green, the environment is basically not affected, and conditions are provided for the disposal of the solid hazardous chemical substances; the auxiliary supporting position is adjustable, and the device can adapt to solid hazardous chemicals in a certain size range; the cutting mode of scanning is simultaneously rotated, so that heat dissipation and slag discharge are facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention;
fig. 1 is a schematic structural diagram of a femtosecond laser-based solid hazardous chemical cutting device in the application;
wherein, the linear motion mechanism is in the direction of 1-Y axis; a 2-X axis direction linear motion mechanism; 3-directly driving the rotary table; 4-sealing the tank; 5-scanning a galvanometer; 6-femtosecond laser; a 7-Z axis direction linear motion mechanism; 8-a mirror group box; 9-an optical mounting plate; 10-a dust collector; 11-a movable mirror; 12-solid hazardous chemicals; 13-a lathe bed; 14-a frame; 15-auxiliary support; 16-leveling pad.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1, an embodiment of the present invention provides a femtosecond laser-based solid hazardous chemical substance cutting device, through which solid hazardous chemical substances of specific specifications are safely cut and disassembled.
The main connection relationship is as follows: the direct-drive turntable (3) is called an A shaft for short, a solid hazardous chemical substance (12) is installed on the end face of the direct-drive turntable, the direct-drive turntable (3) is fixedly connected with the solid hazardous chemical substance (12), the A shaft is a direct-drive turntable which is a rotating shaft, and the turntable is directly driven by an internal motor; an auxiliary support (15) is placed under the solid hazardous chemical substance (12), and the height of the auxiliary support (15) is adjustable; the auxiliary support (15) is fixedly connected with an X axis, the X axis direction linear motion mechanism (2) is called the X axis for short, the X axis is a linear motion axis, a table top is arranged on the X axis direction linear motion mechanism, the auxiliary support (15) is connected with the X axis table top, and the X axis is directly driven by a linear motor. The shaft A is positioned above the shaft X and fixedly connected with the shaft X, and the shaft A shell is provided with a mounting surface which is fixedly connected with the X-axis table surface.
The shaft A, the solid hazardous chemical substance (12) and the auxiliary support (15) are sealed in the sealing tank (4); one end of the pipeline of the dust collector (10) extends into the sealing tank and is used for sucking the cut powder, and the other end of the pipeline of the dust collector (10) is connected with the dust collector. The X axis is fixedly connected with the Y axis, and the linear motion mechanism (1) in the Y axis direction is called the Y axis for short; the Y-axis (1) is fixedly connected with the lathe bed (13), the lathe bed is a marble lathe bed, high-motion-precision equipment generally adopts the marble lathe bed, and the thermal stability and the vibration resistance are good. The lathe bed (13) is placed on a frame (14), the frame is a steel frame, and a leveling pad (16) is arranged below the frame (14); the Z-axis direction linear motion mechanism (7) is called as Z-axis for short, and the Z-axis is positioned on a cross beam of the lathe bed (13) and fixedly connected with the cross beam; wherein, the beam is a part of the marble lathe bed, namely a position below the laser; the Z axis is a vertical up-and-down motion axis, and the internal motor is driven by a ball screw. A scanning galvanometer (5) is arranged on the Z axis and fixedly connected with the Z axis, the galvanometer is arranged on the Z axis table top and fixed by screws; the Z axis drives the galvanometer to move linearly. The scanning galvanometer (5) is fixedly connected with the movable reflecting mirror (11), and the reflecting mirror seat is fixedly connected with the galvanometer seat through screws. (ii) a An optical mounting plate (9) is arranged above a cross beam of the lathe bed (13) through screws and is fixedly connected; a femtosecond laser (6) and a lens group box (8) are arranged on the optical mounting plate (9), and the emergent light of the femtosecond laser is transmitted through a lens; the light-emitting direction is that horizontal light-emitting transmits to the case of mirror group, installs two subassemblies on the optics mounting panel: the femtosecond laser and the lens group box are fixed on the optical mounting plate through screws.
The cutting and using method of the device comprises the following steps:
1. mounting a solid hazardous chemical (12) on the shaft A;
2. adjusting the cutting position through an X axis and a Y axis;
3. adjusting the position of a focal spot through the Z axis to enable the focal spot to fall on a cutting position;
4. starting the shaft A), rotating the solid hazardous chemical substance (12) at the rotating speed of 10 r/min;
5. the femtosecond laser (6) emits light, the scanning galvanometer (5) is started, the scanning range is 10mm (Y direction), and the cutting process is started.
Wherein, the adopted laser is an infrared femtosecond laser, the output power of the laser is between 20W and 50W, and the output pulse width is less than 150 fs;
the transmission light path adopts the modes of a photoelectric shutter, a beam expander, a reflector, a galvanometer and a field lens, and the scanning range of the galvanometer is 10mm (Y direction);
the cutting mode is a mode of rotating and scanning a galvanometer at the same time, and the rotating speed is less than or equal to 10 r/min;
the temperature in the cutting process is monitored in the whole process, and is less than or equal to 100 ℃.
The sealed tank can be blown with protective gas such as argon, and a dust collector is adopted for smoke purification in the cutting process.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A femtosecond laser-based cutting device for solid hazardous chemicals, which is characterized by comprising:
the device comprises a frame (14), a bed body (13), a Y-axis direction linear motion mechanism (1), an X-axis direction linear motion mechanism (2), a direct-drive rotary table (3), an auxiliary support (15), a seal tank (4), a Z-axis direction linear motion mechanism (7), a scanning galvanometer (5), a movable reflecting mirror (11), an optical mounting plate (9), a second laser (6), a mirror group box (8) and a dust collector (10);
the bed body (13) is placed on the frame (14), the Y-axis direction linear motion mechanism (1) or the X-axis direction linear motion mechanism (2) is fixed on the bed body (13), when the Y-axis direction linear motion mechanism (1) is fixed on the bed body (13), the X-axis direction linear motion mechanism (2) is fixed on the table top of the Y-axis direction linear motion mechanism (1), and the Y-axis direction linear motion mechanism (1) is used for adjusting the linear motion of the X-axis direction linear motion mechanism (2) in the Y-axis direction of the water surface; when the X-axis direction linear motion mechanism (2) is fixed on the bed body (13), the Y-axis direction linear motion mechanism (1) is fixed on the table top of the X-axis direction linear motion mechanism (2), and the X-axis direction linear motion mechanism (2) is used for adjusting the linear motion of the Y-axis direction linear motion mechanism (1) in the X-axis direction of the water surface;
the direct-drive rotary table (3) is fixed on a table top of the Y-axis direction linear motion mechanism (1) and the X-axis direction linear motion mechanism (2) which are positioned above, a solid hazardous chemical substance (12) is arranged on the end face of an A shaft in the direct-drive rotary table (3), an auxiliary support (15) is arranged below the solid hazardous chemical substance (12), and the auxiliary support (15) is fixedly connected with the table top of the mechanism which is positioned above the Y-axis direction linear motion mechanism (1) and the X-axis direction linear motion mechanism (2); the direct-drive rotary table (3), the solid hazardous chemical substance (12) and the auxiliary support (15) are sealed in the sealing tank (4); one end of a pipeline of the dust collector (10) extends into the sealing tank (4);
the crossbeam is fixedly arranged on the lathe bed (13), the Z-axis direction linear motion mechanism (7) is positioned on the crossbeam of the lathe bed (13), and the table top of the Z-axis direction linear motion mechanism (7) is fixedly connected with the crossbeam; the Z-axis direction linear motion mechanism (7) is used for performing vertical linear motion adjustment on a component mounted on the Z-axis direction linear motion mechanism; the scanning galvanometer (5) is fixedly arranged on the table top of the Z-axis direction linear motion mechanism (7), and the scanning galvanometer (5) is fixedly connected with the movable reflecting mirror (11); an optical mounting plate (9) is fixedly mounted above the beam, and a femtosecond laser (6) and a lens group box (8) are fixedly mounted on the optical mounting plate (9); the femtosecond laser (6) generates laser and cuts the solid hazardous chemical substance (12) after the laser is transmitted through the lens group box (8).
2. The femtosecond laser-based cutting device for solid hazardous chemicals according to claim 1, characterized in that the frame (14) is a steel frame, and a leveling pad (16) is arranged below the steel frame.
3. The femtosecond laser-based solid hazardous chemical cutting device according to claim 1, characterized in that the bed (13) is a marble bed.
4. The femtosecond laser-based solid hazardous chemical substance cutting device according to claim 1, characterized in that the auxiliary support (15) is height-adjustable.
5. The femtosecond laser-based solid dangerous chemical cutting device according to claim 1, wherein the scanning galvanometer (5) is installed on a table top of the Z-axis direction linear motion mechanism (7) and fixed through screws; the Z-axis direction linear motion mechanism (7) drives the scanning galvanometer (5) to perform linear motion in the Z-axis direction.
6. The femtosecond laser-based solid hazardous chemical substance cutting device according to claim 1, characterized in that a movable reflector (11) and a scanning galvanometer (5) are fixedly connected through screws.
7. The femtosecond laser-based solid hazardous chemical cutting device according to claim 1, characterized in that the optical mounting plate (9) is fixedly mounted above the cross beam through screws.
8. The femtosecond laser-based solid hazardous chemical cutting device according to claim 1, characterized in that the femtosecond laser (6) and the mirror group box (8) are fixedly installed on the optical installation plate (9) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648152.0U CN209811490U (en) | 2019-05-07 | 2019-05-07 | Solid hazardous chemical substance cutting device based on femtosecond laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648152.0U CN209811490U (en) | 2019-05-07 | 2019-05-07 | Solid hazardous chemical substance cutting device based on femtosecond laser |
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| CN209811490U true CN209811490U (en) | 2019-12-20 |
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| CN201920648152.0U Active CN209811490U (en) | 2019-05-07 | 2019-05-07 | Solid hazardous chemical substance cutting device based on femtosecond laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202272A (en) * | 2019-05-07 | 2019-09-06 | 中国工程物理研究院机械制造工艺研究所 | A kind of solid harmful influence cutter device and cutting method based on femtosecond laser |
-
2019
- 2019-05-07 CN CN201920648152.0U patent/CN209811490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202272A (en) * | 2019-05-07 | 2019-09-06 | 中国工程物理研究院机械制造工艺研究所 | A kind of solid harmful influence cutter device and cutting method based on femtosecond laser |
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