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CN107643164B - Semi-automatic detection device for energy stability of laser - Google Patents

Semi-automatic detection device for energy stability of laser Download PDF

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Publication number
CN107643164B
CN107643164B CN201710933048.1A CN201710933048A CN107643164B CN 107643164 B CN107643164 B CN 107643164B CN 201710933048 A CN201710933048 A CN 201710933048A CN 107643164 B CN107643164 B CN 107643164B
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China
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adjusting
laser
laser energy
infrared sensor
fixed
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CN107643164A (en
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尚凡杰
蔡杭庆
陈涛
汤绍富
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Zhejiang Fuchunjiang Environmental Technology Research Co ltd
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Zhejiang Fuchunjiang Environmental Technology Research Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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    • Y02A90/30Assessment of water resources

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Abstract

The invention relates to a laser energy detection device, and aims to provide a semi-automatic detection device for laser energy stability. The device comprises two lasers which are arranged on an optical platform in parallel, a screw sliding group is arranged in the direction perpendicular to the laser path, the lasers and an infrared sensor fixing support are positioned on two sides of the screw sliding group, a probe fixing support provided with a laser energy measuring instrument probe is arranged on a ball screw of the screw sliding group, and an infrared sensor module is arranged on the probe fixing support. The optical platform is placed on the frame platform through the bottom support leg, and a horizontal adjusting device is arranged between the optical platform and the frame platform, and comprises a transverse U-shaped structure formed by a fixed plate and a bottom connecting plate, and the side edge of the optical platform is arranged in the U-shaped structure. The invention uses the infrared sensor to locate, and the laser energy detection device can accurately reach the measuring position. The equipment is simple, quick and safe, so that the on-line dioxin detector has higher automation degree. The horizontal adjusting seat does not need an additional opening, is convenient to process, reduces cost, maintains enough strength and is convenient to operate.

Description

Semi-automatic detection device for energy stability of laser
Technical Field
The invention relates to a laser energy detection device, in particular to a laser energy stable semi-automatic detection device for a dioxin on-line detector.
Background
The laser is an important device in a dioxin on-line detector. When the dioxin is detected online, laser emitted by the laser is emitted into a time-of-flight mass spectrometer, organic matters in the time-of-flight mass spectrometer are ionized under the action of the laser, and the instrument detects the concentration of the dioxin by analyzing the ionized signals. The laser energy and wavelength play a critical role in the ionization process.
The laser energy can be gradually reduced due to the influence of a plurality of factors such as temperature and the like in the using process of the laser. Therefore, frequent measurements are required during use and the laser energy is adjusted. In addition, two lasers with different wavelengths are required to be simultaneously injected into the time-of-flight mass spectrometer during online detection of the dioxin, so that the energy of two paths of lasers is required to be measured each time the energy of the lasers is measured. Because the internal space of the instrument is limited, two paths of laser energy are required to be measured and adjusted frequently, and two operators are required to work cooperatively, so that the operation is very inconvenient. The laser energy is frequently detected, an instrument panel is required to be opened frequently, dust is easy to deposit in the instrument, and the detection result is influenced. In addition, the internal light path of the instrument is complex, and the risk of damaging eyes by laser exists during operation.
In addition, the smoke detection instrument emits two laser beams through a built-in laser, and the two laser beams are collected after refraction until the laser intensity of one laser beam passes through the gas to be detected to be attenuated so as to analyze the content of dioxin in the gas. Therefore, the horizontal adjustment of the optical platform where the laser is positioned is very important for the stability of the whole dioxin on-line monitoring system. In the existing flue gas detection instrument, the horizontal adjusting device used on the optical platform has the problems of multiple operating tools, inconvenient adjustment, insensitive adjustment and the like.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a semi-automatic detection device with stable laser energy.
In order to solve the problems, the solution of the invention is as follows:
the semi-automatic detection device comprises an optical platform and two lasers fixed on the optical platform; the laser is characterized in that two lasers are arranged in parallel, and the optical paths of the two lasers are kept parallel; a set of screw rod sliding groups are arranged in the direction perpendicular to the laser light path, and the laser and the infrared sensor fixing support are respectively positioned at two sides of the screw rod sliding groups;
the screw sliding group is provided with a base fixed on the optical platform, the base is provided with a ball screw, and the sliding block is movably arranged on the ball screw and can move along the direction perpendicular to the laser light path; an L-shaped probe fixing bracket is arranged, and a horizontal plate of the L-shaped probe fixing bracket is fixed on the upper side of the sliding block; a laser energy meter probe is arranged on one side of a vertical plate of the probe fixing bracket, and the installation direction of the laser energy meter probe is perpendicular to the screw rod sliding group and faces to the laser;
at least two infrared sensor fixing brackets are L-shaped, and a bottom plate of the infrared sensor fixing brackets is fixed on the optical platform; an infrared sensor module is arranged on a vertical mounting frame of the infrared sensor fixing bracket, and the mounting direction of the infrared sensor module is vertical to a vertical plate of the lead screw sliding group and faces to the probe fixing bracket; a reflective area is arranged at the middle part of one side of the vertical plate facing the infrared sensor module along the vertical direction, and black coating layers are coated on the other areas;
one end of the ball screw is connected with the output end of the stepping motor through a coupler, and the stepping motor is connected to a stepping motor driver through a signal wire; the stepping motor driver and the infrared sensor module are respectively connected with the controller through signal wires and the opposite plug-in units; the laser energy measuring instrument probe is connected with the laser energy measuring instrument through a signal wire;
the optical platform is arranged on the frame platform through a plurality of support legs at the bottom, and at least one horizontal adjusting device is arranged between the support legs; the horizontal adjusting device comprises an adjusting seat fixed at the bottom of the frame platform, wherein the adjusting seat is of a cup-shaped structure with an upward opening; the opening part of the adjusting seat is embedded in the through hole of the frame platform, and the outer edge protruding from the side wall of the adjusting seat is fixed on the frame platform through a screw; the bottom of the adjusting seat is provided with a threaded through hole, and an adjusting screw with external threads is arranged in the adjusting seat; a clearance fit movable block is arranged in the cup-shaped structure of the adjusting seat, and a counter bore is arranged at the bottom of the movable block; the counter bore is internally provided with a movable connecting component, and the adjusting screw is clamped in the counter bore and connected with the movable connecting component; the lower section of the adjusting screw rod extends out of the adjusting seat and is sequentially sleeved with a locking nut and an adjusting hand wheel; the bottom end of the vertical side surface of the fixing plate is fixed at the end part of the bottom connecting plate through a screw, so that the fixing plate and the bottom connecting plate form a transverse U-shaped structure; the bottom connecting plate is fixed at the top of the movable block through screws, and a plurality of fixing screws are arranged on the horizontal side surface of the fixing plate; the side edge of the optical platform is arranged in the U-shaped structure, and clamping and fixing are realized through fixing screws on the fixing plate.
The invention also comprises a drag chain, one end of the drag chain is fixed on the optical platform, and the other end is connected to the side surface of the sliding block; the signal wire connected with the probe of the laser energy measuring instrument is buried in the drag chain.
In the invention, three infrared sensor fixing brackets are respectively arranged at the positions opposite to the two laser light emitting holes and the middle of the two holes.
The invention also comprises a protective cover fixed on the optical platform, and all the other parts except the controller and the laser energy measuring instrument are positioned in the protective cover.
In the invention, the movable connecting part of the horizontal adjusting device is a steel ball, and the top of the adjusting screw rod is tightly propped against the steel ball; alternatively, the movable connecting component is a horizontal bearing, and the top of the adjusting screw is embedded into the horizontal bearing.
In the invention, an adjusting hand wheel of the horizontal adjusting device is fixed at the end part of an adjusting screw rod through a pin.
In the invention, the top of the movable block of the horizontal adjusting device is provided with the protruding part, the bottom connecting plate is provided with the through hole, and the protruding part of the movable block is nested in the through hole of the bottom connecting plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the electric laser energy detection device is positioned by utilizing the infrared sensor, and the laser energy detection device can accurately reach a measuring position; the controller and the laser energy measuring instrument can be placed outside the protective cover, so that the use is simpler, faster and safer, and the degree of automation of the dioxin on-line detector is higher.
2. The horizontal adjusting seat does not need an additional opening, is convenient to process, reduces the cost and maintains enough strength; the installation is more convenient, the optical platform can directly extend into a transverse U-shaped structure formed by the fixing plate and the bottom connecting plate and is fastened by the fixing screw, so that the optical platform is convenient and reliable; the lifting operation does not need additional tools, and the lifting operation can be directly carried out by using the adjusting hand wheel, so that the lifting operation is convenient to operate.
Drawings
FIG. 1 is a schematic diagram of an electric laser energy detection device;
FIG. 2 is a schematic view of a lead screw slide set;
fig. 3 is a schematic view of an infrared sensor fixing bracket.
Reference numerals in the drawings: the device comprises a stepping motor 1, a coupler 2, a probe fixing support 3, a laser energy measuring instrument probe 4, a light outlet 5, a light outlet 6, a laser 7, a drag chain 8, a base 9, a ball screw 10, an infrared sensor fixing support 11, a sliding block 12, an optical platform 13, an infrared sensor module 14, a stepping motor driver 15, a laser energy measuring instrument 16 and a controller 17.
Fig. 4 is a schematic structural view of a horizontal adjustment device in the prior art.
Fig. 5 is a schematic structural view of a first level adjustment apparatus according to the present invention.
Fig. 6 is a schematic structural view of a second level adjustment apparatus according to the present invention.
The reference numerals in the drawings are: 1-1 a rack platform; 1-2 adjusting screw rods, 1-3 adjusting seats, 1-4.1 locking nuts, 1-4.2 adjusting nuts, 1-5 adjusting handles and 1-6 optical platforms; the device comprises a 2-1 fixed plate, a 2-2 bottom connecting plate, a 2-3 adjusting seat, a 2-4 movable block, 2-5 steel balls, a 2-6 locking nut, a 2-7 adjusting nut and a 2-8 frame platform; the device comprises a 3-1 fixed plate, a 3-2 bottom connecting plate, a 3-3 adjusting seat, a 3-4 movable block, a 3-5 plane bearing, a 3-6 locking nut, a 3-7 adjusting screw and a 3-8 frame platform.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The semi-automatic detection device for laser energy stabilization comprises an optical platform 13 and two lasers 7 fixed on the optical platform 13; the two lasers 7 are arranged in parallel, and the two laser paths are kept parallel; a set of screw rod sliding groups are arranged in the direction perpendicular to the laser light path, and the laser 7 and the infrared sensor fixing bracket 11 are respectively positioned at two sides of the screw rod sliding groups;
the screw sliding group is provided with a base 9 fixed on an optical platform 13, a ball screw 10 is arranged on the base 9, and a sliding block 12 is movably arranged on the ball screw 10 and can move along the direction perpendicular to the laser light path; an L-shaped probe fixing bracket 3 is arranged, and a horizontal plate of the L-shaped probe fixing bracket is fixed on the upper side of a sliding block 12; a laser energy measuring instrument probe 4 is arranged on one side of a vertical plate of the probe fixing bracket 3, and the installation direction of the probe is vertical to the screw rod sliding group and faces to a laser 7;
the infrared sensor fixing brackets 11 are three and are respectively arranged at the positions opposite to the light emergent holes 5 and 6 of the two lasers 7 and the middle of the two holes. The infrared sensor fixing brackets 11 are all L-shaped, the bottom plate of the infrared sensor fixing brackets is fixed on the optical platform 13, the infrared sensor module 14 is arranged on the vertical mounting rack of the infrared sensor fixing brackets, and the mounting direction of the infrared sensor module 14 is perpendicular to the lead screw sliding group and faces to the vertical plate of the probe fixing bracket 3; a light reflecting area is arranged at the middle part of the vertical plate of the probe fixing bracket 3, which faces to one side of the infrared sensor module 14, and black paint layers are coated on the rest areas;
one end of the ball screw 10 is connected with the output end of the stepping motor 1 through a coupler 2, and the stepping motor 1 is connected to a stepping motor driver 15 through a signal wire; the stepping motor driver 15 and the infrared sensor module 14 are respectively connected with the controller 17 through signal wires and the opposite plug-ins; the laser energy meter probe 4 is connected to the laser energy meter 16 via a signal line.
A drag chain 8 is arranged between the laser 7 and the screw rod sliding group, one end of the drag chain 8 is fixed on an optical platform 13, and the other end is connected to the side face of a sliding block 12; the signal line connected to the laser energy meter probe 4 is buried in the drag chain 8. The device may also include a protective cover secured to the optical bench 13 and having the components other than the controller 17 and the laser energy meter 16 located within the protective cover. The components mounted on the optical stage 13 may be fixed by bolts or screws.
Description as examples:
ball screw 10 may be a 1610 ball screw with a length of 50 cm; the probe fixing support 3 is made of stainless steel, the width of the middle 1mm in the vertical direction is a reflective area of the primary color of the stainless steel, and the rest is black. The drag chain 8 is a plastic drag chain with a thickness of 14, a width of 15mm and a length of 40 cm. The stepper motor may be a 42 stepper motor or a 57 stepper motor.
The controller 17 is provided with 4 keys and 5 position indicator lamps, and the 4 keys are respectively in a stop position, a first position, a second position and a third position. When the key is pressed, the stepping motor driver 15 drives the stepping motor 1, and the stepping motor 1 drives the coupler 2 and the ball screw 10 to rotate, so that the slider 12 drives the laser energy measuring instrument probe 4 to move. When the specified position is reached, the infrared sensor module 14 receives the infrared signal reflected by the reflecting area on the probe fixing support 3, and the stepping motor 1 stops rotating after receiving the signal forwarded by the controller. During the movement of the slide 12, the 5 position indicator lights give corresponding indications according to the position of the slide 12. When the laser energy measuring instrument probe 4 is positioned at the light outlet 5 or the light outlet 6, the laser energy measuring instrument probe 4 and the laser energy measuring instrument 16 can be utilized for measuring the laser energy. In view of the fact that the implementation manner of the controller is well known to those skilled in the art, the present invention is not repeated.
The optical platform is typically mounted on the frame platform by a plurality of feet at the bottom thereof, with at least one level adjustment device disposed therebetween. The structure of the conventional level adjustment device is described as follows (see fig. 3):
the upper part of the adjusting screw 1-2 is in an inverted boss-shaped structure, the center of the bottom of the boss is provided with a rod-shaped part coaxial with the boss, and the outer surface of the rod-shaped part is provided with external threads; the uppermost side of the boss-like structure has a protruding outer edge at which the adjusting screw 1-2 is fixed to the bottom of the optical stage 13 by screws. The adjusting seat 1-3 is a cup-shaped structure with an upward opening, and the outer edge of the adjusting seat is fixed below the frame platform 1-1 by bolts. The frame platform 1-1 is provided with a through hole with the same size as the opening of the adjusting seat 1-3, the outer wall of the boss-shaped structure is smooth, and the outer wall of the boss-shaped structure is in clearance fit with the through hole on the frame platform 1-1 and the opening of the adjusting seat 1-3. The rod-shaped part sequentially passes through the lock nut 1-4.1, the bottom through hole of the adjusting seat 1-3 and the adjusting nut 1-4.2, and the tail end is provided with a pin. The bottom through holes of the locking nut 1-4.1 and the adjusting seat 1-3 are provided with internal threads matched with the rod-shaped parts, and the adjusting nut 1-4.2 is fixed at the end part of the rod-shaped part. The side edges of the locking nut 1-4.1 and the adjusting nut 1-4.2 are uniformly distributed with a plurality of counter bores for inserting the adjusting handle 1-5, and the side wall of the adjusting seat 1-3 at the corresponding horizontal position of the locking nut 1-4.1 is provided with a long window for inserting the adjusting handle 1-5 and the adjusting locking nut 1-4.1.
The using method comprises the following steps:
when lifting adjustment is needed, the adjusting handle 1-5 is used for rotating the nut 1-4.2 anticlockwise, the adjusting screw 1-2 is lifted, the optical platform 13 is lifted under the driving of the adjusting screw 1-2, and after the optical platform is adjusted to a proper position, the adjusting handle 1-5 is used for clockwise adjusting and fixing the nut 4.1. When the optical platform is required to be lowered and adjusted, the locking nut 1-4.1 is unscrewed by the adjusting handle 1-5, the adjusting nut 1-4.2 is rotated clockwise by the adjusting handle 1-5, the adjusting screw rod 2 is lowered, the optical platform 13 is lowered together with the lowering, and after the optical platform is adjusted to a proper position, the adjusting nut 1-4.1 is locked clockwise by the adjusting handle 1-5 to realize adjustment and fixation.
For the adjusting structure, the adjusting seat 1-3 needs to be broken to leave an adjusting long window during manufacturing, the manufacturing difficulty is high, the manufacturing cost is high, the structural strength is affected, and the reliability is poor. When in use and installation, the adjusting screw 1-2 is firstly fixed at the bottom of the optical platform 13, then the rod-shaped part sequentially passes through the locking nut 1-4.1, the bottom through hole of the adjusting seat 1-3 and the adjusting nut 1-4.2, and the tail end is fixed by a pin; but also the reverse operation must be performed when the optical bench 13 is detached, which is too complicated. During adjustment, the insertion counter bores of the adjustment handles 1-5 need to be repeatedly changed to adapt to the rotation change of the two nuts, and the operation is too complicated.
2. The structure of the horizontal adjusting device in the invention is as follows:
the horizontal adjusting device is also arranged between the optical platform and the frame platform, and can realize quick assembly and disassembly. The horizontal adjusting device comprises an adjusting seat 2-3 fixed at the bottom of a frame platform 2-8, wherein the adjusting seat 2-3 is of a cup-shaped structure with an upward opening; the opening part of the adjusting seat 2-3 is embedded in a through hole of the frame platform 2-8, and the outer edge protruding out of the side wall of the adjusting seat is fixed on the frame platform 2-8 through screws; the bottom of the adjusting seat 2-3 is provided with a threaded through hole, and an adjusting screw with external threads is arranged in the adjusting seat; the cup-shaped structure of the adjusting seat 2-3 is provided with a clearance fit movable block 2-4, and the bottom of the movable block 2-4 is provided with a counter bore; the counter bore is internally provided with a steel ball 2-5, and the adjusting screw is clamped in the counter bore and tightly pushes against the steel ball 2-5; the lower section of the adjusting screw rod extends out of the adjusting seat 2-3 and is sequentially sleeved with the locking nut 2-6 and the adjusting hand wheel 2-7; the bottom end of the vertical side surface of the fixing plate 2-1 is fixed at the end part of the bottom connecting plate 2-2 through a screw, so that the fixing plate 2-1 and the bottom connecting plate 2-2 form a transverse U-shaped structure; the bottom connecting plate 2-2 is fixed on the top of the movable block 2-4 through screws, and a plurality of fixing screws are arranged on the horizontal side surface of the fixed plate 2-1. The side edges of the optical platform 13 are mounted in a U-shaped configuration and clamped and fixed by means of fixing screws on the fixing plate 2-1. The adjusting handwheels 2-7 are fixed at the end parts of the adjusting screw rods through pins. The top of the movable block 2-4 is provided with a protruding part, the bottom connecting plate 2-2 is provided with a through hole, and the protruding part of the movable block 2-4 is nested in the through hole of the bottom connecting plate 2-2.
The using method comprises the following steps:
when in use, the side edge of the optical platform 13 is directly extended into the transverse U-shaped structure formed by the fixing plate 2-1 and the bottom connecting plate 2-2, and the clamping and fixing can be realized by tightening the fixing screw on the fixing plate 2-1.
When the lifting adjustment is needed, the locking nut 2-6 is unscrewed, the adjusting hand wheel 2-7 is rotated anticlockwise, and sliding friction is formed between the steel balls 2-5 serving as movable connecting components and the top end of the adjusting screw rod. Along with the rising of the adjusting screw, the steel ball 2-5 drives the movable block 2-4 to rise, and the movable block 2-4 drives the optical platform 13 fixed in the U-shaped structure to rise together. After the locking nut is adjusted to a proper position, the locking nut 2-6 is screwed anticlockwise to realize fixation. When the descending adjustment is needed, the locking nut 2-6 is unscrewed, the adjusting hand wheel 2-7 is rotated clockwise, the clamped adjusting screw drives the movable block 2-4 to descend, the optical platform 13 descends together and is adjusted to a proper position, and the locking nut 2-6 is screwed anticlockwise to achieve fixation.
3. Structural description of another level adjustment device of the invention:
the horizontal adjusting device comprises an adjusting seat 2-3 fixed at the bottom of a frame platform 2-8, wherein the adjusting seat 3-3 is of a cup-shaped structure with an upward opening; the opening part of the adjusting seat 3-3 is embedded in a through hole of the frame platform 3-8, and the outer edge protruding out of the side wall of the adjusting seat is fixed on the frame platform 3-8 through screws; the bottom of the adjusting seat 3-3 is provided with a threaded through hole, and an adjusting screw with external threads is arranged in the adjusting seat; the cup-shaped structure of the adjusting seat 3-3 is provided with a clearance fit movable block 3-4, and the bottom of the movable block 3-4 is provided with a counter bore; the counter bore is internally provided with a horizontal bearing 3-5, the adjusting screw is clamped in the counter bore, and the top of the adjusting screw is embedded into the horizontal bearing 3-5. The lower section of the adjusting screw rod extends out of the adjusting seat 3-3 and is sequentially sleeved with the locking nut 3-6 and the adjusting hand wheel 3-7; the bottom end of the vertical side surface of the fixing plate 3-1 is fixed at the end part of the bottom connecting plate 3-2 through a screw, so that the fixing plate 3-1 and the bottom connecting plate 3-2 form a transverse U-shaped structure; the side edges of the optical bench 13 are mounted in a U-shaped configuration and clamped and fixed by means of fixing screws on the fixing plate 3-1. The bottom connecting plate 3-2 is fixed on the top of the movable block 3-4 through screws, and a plurality of fixing screws are arranged on the horizontal side surface of the fixed plate 3-1. The adjusting handwheel 3-7 is fixed at the end of the adjusting screw rod through a pin. The top of the movable block 3-4 is provided with a protruding part, the bottom connecting plate 3-2 is provided with a through hole, and the protruding part of the movable block 3-4 is nested in the through hole of the bottom connecting plate 3-2.
The using method comprises the following steps:
when in use, the side edge of the optical platform 13 is directly extended into the transverse U-shaped structure formed by the fixing plate 3-1 and the bottom connecting plate 3-2, and the clamping and fixing can be realized by tightening the fixing screw on the fixing plate 3-1.
When the lifting adjustment is needed, the locking nut 3-6 is unscrewed, the adjusting hand wheel 3-7 is rotated anticlockwise, and rolling friction is formed between the plane bearing 3-5 serving as a movable connecting component and the top end of the adjusting screw rod. Along with the rising of the adjusting screw, the plane bearing 3-5 drives the movable block 3-4 to rise, and the movable block 3-4 drives the optical platform 13 fixed in the U-shaped structure to rise together. After the locking nut is adjusted to a proper position, the locking nut 3-6 is screwed anticlockwise to realize fixation. When the descending adjustment is needed, the locking nut 3-6 is unscrewed, the adjusting hand wheel 3-7 is rotated clockwise, the clamped adjusting screw drives the movable block 3-4 to descend, the optical platform 13 descends together and is adjusted to a proper position, and the locking nut 3-6 is screwed anticlockwise to achieve fixation.

Claims (5)

1. A semi-automatic detection device for energy stabilization of a laser comprises an optical platform and two lasers fixed on the optical platform; the laser is characterized in that two lasers are arranged in parallel, and the optical paths of the two lasers are kept parallel; a set of screw rod sliding groups are arranged in the direction perpendicular to the laser light path, and the laser and the infrared sensor fixing support are respectively positioned at two sides of the screw rod sliding groups;
the screw sliding group is provided with a base fixed on the optical platform, the base is provided with a ball screw, and the sliding block is movably arranged on the ball screw and can move along the direction perpendicular to the laser light path; an L-shaped probe fixing bracket is arranged, and a horizontal plate of the L-shaped probe fixing bracket is fixed on the upper side of the sliding block; a laser energy meter probe is arranged on one side of a vertical plate of the probe fixing bracket, and the installation direction of the laser energy meter probe is perpendicular to the screw rod sliding group and faces to the laser;
at least two infrared sensor fixing brackets are L-shaped, and a bottom plate of the infrared sensor fixing brackets is fixed on the optical platform; an infrared sensor module is arranged on a vertical mounting frame of the infrared sensor fixing bracket, and the mounting direction of the infrared sensor module is vertical to a vertical plate of the lead screw sliding group and faces to the probe fixing bracket; a reflective area is arranged at the middle part of one side of the vertical plate facing the infrared sensor module along the vertical direction, and black coating layers are coated on the other areas;
one end of the ball screw is connected with the output end of the stepping motor through a coupler, and the stepping motor is connected to a stepping motor driver through a signal wire; the stepping motor driver and the infrared sensor module are respectively connected with the controller through signal wires and the opposite plug-in units; the laser energy measuring instrument probe is connected with the laser energy measuring instrument through a signal wire;
the optical platform is arranged on the frame platform through a plurality of support legs at the bottom, and at least one horizontal adjusting device is arranged between the support legs; the horizontal adjusting device comprises an adjusting seat fixed at the bottom of the frame platform, wherein the adjusting seat is of a cup-shaped structure with an upward opening; the opening part of the adjusting seat is embedded in the through hole of the frame platform, and the outer edge protruding from the side wall of the adjusting seat is fixed on the frame platform through a screw; the bottom of the adjusting seat is provided with a threaded through hole, and an adjusting screw with external threads is arranged in the adjusting seat; a clearance fit movable block is arranged in the cup-shaped structure of the adjusting seat, and a counter bore is arranged at the bottom of the movable block; the counter bore is internally provided with a movable connecting component, and the adjusting screw is clamped in the counter bore and connected with the movable connecting component; the lower section of the adjusting screw rod extends out of the adjusting seat and is sequentially sleeved with a locking nut and an adjusting hand wheel; the bottom end of the vertical side surface of the fixing plate is fixed at the end part of the bottom connecting plate through a screw, so that the fixing plate and the bottom connecting plate form a transverse U-shaped structure; the bottom connecting plate is fixed at the top of the movable block through screws, and a plurality of fixing screws are arranged on the horizontal side surface of the fixing plate; the side edge of the optical platform is arranged in the U-shaped structure, and clamping and fixing are realized through fixing screws on the fixing plate;
the movable connecting part of the horizontal adjusting device is a steel ball, and the top of the adjusting screw rod is tightly propped against the steel ball; or the movable connecting component is a horizontal bearing, and the top of the adjusting screw is embedded into the horizontal bearing;
the semi-automatic detection device for energy stability of the laser further comprises a protective cover fixed on the optical platform, and all other parts except the controller and the laser energy measuring instrument are positioned in the protective cover.
2. The laser energy stabilized semiautomatic inspection device as claimed in claim 1, further comprising a drag chain having one end fixed to the optical platform and the other end connected to the side of the slider; the signal wire connected with the probe of the laser energy measuring instrument is buried in the drag chain.
3. The laser energy stabilization semiautomatic inspection device of claim 1, wherein three infrared sensor fixing brackets are respectively installed at positions opposite to the two laser light emitting holes and in the middle of the two holes.
4. A laser energy stable semiautomatic inspection device according to any of claims 1 to 3, characterized in that the adjusting hand wheel of the horizontal adjusting device is fixed at the end of the adjusting screw by means of a pin.
5. A laser energy stable semiautomatic inspection device according to any of claims 1 to 3, characterized in that the top of the movable block of the level adjustment device has a protruding portion, the bottom connecting plate has a through hole, and the protruding portion of the movable block is nested in the through hole of the bottom connecting plate.
CN201710933048.1A 2017-10-10 2017-10-10 Semi-automatic detection device for energy stability of laser Active CN107643164B (en)

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CN201710933048.1A CN107643164B (en) 2017-10-10 2017-10-10 Semi-automatic detection device for energy stability of laser

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CN107643164B true CN107643164B (en) 2023-06-20

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