CN110193666B - Laser welding machine - Google Patents
Laser welding machine Download PDFInfo
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- CN110193666B CN110193666B CN201910606903.7A CN201910606903A CN110193666B CN 110193666 B CN110193666 B CN 110193666B CN 201910606903 A CN201910606903 A CN 201910606903A CN 110193666 B CN110193666 B CN 110193666B
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- 238000003466 welding Methods 0.000 title claims abstract description 34
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 94
- 239000011521 glass Substances 0.000 claims abstract description 6
- 230000005684 electric field Effects 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010015946 Eye irritation Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a laser welding machine, and relates to the technical field of laser welding. The technical key point of the device comprises a frame, a laser transmitter horizontally fixed on the upper side of the frame, a cylinder vertically and fixedly installed at one end of a laser transmitting port of the laser transmitter, and a microscope installed on the upper side of the cylinder, wherein a liquid crystal grating assembly is horizontally arranged in a light source cavity between a reflector and the microscope of the cylinder, and a grating control circuit is electrically connected to the liquid crystal grating assembly; the grating control circuit is coupled with a starting switch of the laser transmitter and drives the liquid crystal grating component to block light when the starting switch is started; when the starting switch is closed, the liquid crystal grating component is driven to conduct light. The invention has the advantage of reducing the risk of burning the glasses of the operator.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a laser welding machine.
Background
At present, chinese patent with bulletin number CN207858083U discloses a laser welding machine, which comprises a box body, a display screen, a light path housing provided with the display screen, an observation table and a working bin, wherein the light path housing is arranged at the top of the box body, the display screen is fixed on the light path housing, the working bin consists of a base and a shell, the working bin is arranged at the front part of the box body, an operation port is arranged on the working bin, one side of the observation table is connected with the light path housing, the other side of the observation table is arranged on the shell of the working bin, and a microscope interface and an observation window are arranged on the observation table.
In the prior art, similar to the laser welding machine, an operator aligns the position of a welding surface through a microscope lens in the operation process, and the repair condition in the welding process is observed. However, when welding, the laser is output and focused on the welding surface, intense light is generated, and part of the laser is reflected from the welding position, so that an operator needs to be far away from an ocular or a eyes protector before the laser is emitted, the trouble degree of the operation of the operator is increased, and the risk of burning eyes of the operator can be possibly caused.
Disclosure of Invention
In view of the prior art problems, an object of the present invention is to provide a laser welding machine, which has the advantage of reducing the risk of burning the operator's glasses.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a laser welding machine, includes frame, the laser emitter that the level is fixed in the frame upside, vertical fixed mounting in the barrel of laser emitter laser emission mouth one end and install in the microscope of barrel upside, its characterized in that: the liquid crystal grating component is horizontally arranged in the light source cavity between the reflecting mirror and the microscope, and is electrically connected with the grating control circuit; the grating control circuit is coupled with a starting switch of the laser transmitter and drives the liquid crystal grating component to block light when the starting switch is started; when the starting switch is closed, the liquid crystal grating component is driven to conduct light.
Through adopting above-mentioned technical scheme, when closing laser start switch, grating control circuit does not obtain the electrical signal, does not produce the electric field in liquid crystal grating subassembly, and light can see through liquid crystal grating subassembly smoothly, therefore operating personnel can see through the microscope and observe the welded condition. However, when laser welding is needed, the laser starting switch is started, besides the laser transmitter can emit laser, the grating control circuit can acquire an electric signal, so that the grating control circuit outputs telecommunication to form an electric field in the liquid crystal grating assembly, the arrangement of liquid crystals in the liquid crystal grating assembly can be changed, and the effect of preventing light rays from passing through is achieved, so that the light rays in the cylinder body can not enter the microscope. Thereby, when the laser transmitter is turned off, the microscope is communicated with the light source cavity; after the laser emitter is started, the liquid crystal grating component separates the microscope from the light source cavity, so that eyes of an operator are protected under the condition that the operator does not need to wear eye protection equipment, and the risk that the eyes of the operator are burnt is reduced.
The invention is further provided with: the liquid crystal grating component comprises two liquid crystal light valves which are arranged in parallel.
By adopting the technical scheme, the two liquid crystal light valves are used, and the characteristic of blocking light in the electrified state has a higher light blocking effect compared with that of a single liquid crystal light valve.
The invention is further provided with: the liquid crystal grating component further comprises a photosensitive sensor arranged between the two liquid crystal light valves, a controllable switch coupled to the output end of the photosensitive sensor is connected in series on a starting circuit of the laser transmitter, and the photosensitive sensor outputs detection voltage for closing the switch when a detected light signal is smaller than a threshold value.
Through adopting above-mentioned technical scheme, the photosensor sets up between two liquid crystal light valves, closes the light source at photosensor both ends when two liquid crystal light valves and separates for the luminance of photosensor place environment reduces, and when the luminance that the photosensor detected was less than the threshold value, the photosensor just can close the controllable switch of establishing ties on the laser emitter, realizes only letting the laser emitter send laser under the circumstances that the liquid crystal light valve was closed. Thereby further playing the role of protecting human eyes.
The invention is further provided with: an indicator light for indicating the state of the liquid crystal grating component is arranged on the frame.
Through adopting above-mentioned technical scheme, through the pilot lamp, operating personnel can know the state of photosensitive sensor and two liquid crystal light valves fast, knows fast that liquid crystal grating subassembly has the problem or whether damages.
The invention is further provided with: the barrel comprises a lower main barrel arranged at the lower side and an upper sub-barrel detachably connected to the lower main barrel, and the liquid crystal grating component is fixedly connected in the upper sub-barrel.
Through adopting above-mentioned technical scheme, can directly take off last minute section of thick bamboo from between microscope and the lower main section of thick bamboo, the convenience is carried out the repair of going up minute section of thick bamboo and is traded.
The invention is further provided with: and the side wall of the upper sub-cylinder is provided with a mounting groove for fixing the photosensitive sensor.
By adopting the technical scheme, the photosensitive sensor is arranged in the mounting groove, so that the photosensitive sensor is prevented from affecting the observation of operators by using a microscope.
The invention is further provided with: the liquid crystal light valve sequentially comprises a liquid crystal display layer, a glass base layer, an electric field generation layer and a transparent flexible layer; the electric field generating layer is electrically connected to the grating control circuit and generates or does not generate an electric field based on a control voltage output by the grating control circuit.
Through adopting above-mentioned technical scheme, through the electric field in the liquid crystal light valve, influence whether transparent of whole liquid crystal display layer reaches the effect of blockking or leading to the light, overall structure is simple, and automatically controlled effect is good.
The invention is further provided with: the electric field generating layer includes a lower transparent conductive layer and an upper transparent conductive layer disposed opposite to each other and a plurality of non-conductive separation points disposed between the lower transparent conductive layer and the upper transparent conductive layer.
Through adopting above-mentioned technical scheme, go up transparent conducting layer and lower transparent conducting layer and produce the interval under the separation of non-conductive partition point, reach and can be under the circular telegram generate the electric field that is used for triggering the liquid crystal display layer, simple structure.
The invention is further provided with: the non-conductive separation points are distributed in a honeycomb shape.
By adopting the technical scheme, the general section of the cylinder body is circular, and the non-conductive separation points distributed in a honeycomb shape can be beneficial to mass production, and meanwhile, the cylinder body can have better uniformly distributed stress effect in a circular structure.
The invention is further provided with: and a condensing lens is arranged at the bottom of the cylinder body.
By adopting the technical scheme, the condensing lens can play a role in focusing a microscope and also can play a role in focusing laser, and the accurate observation and welding on the accurate position are realized.
Compared with the prior art, the invention has the beneficial effects that:
(1) By arranging the liquid crystal grating component, the function of protecting eyes of operators under the condition that the laser transmitter emits laser can be achieved;
(2) The liquid crystal grating component comprises a photosensitive sensor, so that the laser transmitter can be started only when the liquid crystal light valve is closed, and the effect of protecting eyes of operators is further achieved;
(3) The cylinder body comprises a lower main cylinder and an upper sub cylinder, so that the liquid crystal grating assembly is convenient to detach and overhaul.
Drawings
Fig. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic view of the structure of the barrel and the microscope in this embodiment;
FIG. 3 is a schematic diagram of a layer structure of a liquid crystal light valve according to the present embodiment;
FIG. 4 is a schematic circuit diagram of the control module of the present embodiment;
fig. 5 is another circuit schematic of the control module of the present embodiment.
Reference numerals: 1. a frame; 2. a laser emitter; 3. a cylinder; 31. a lower main barrel; 32. an upper separating cylinder; 33. a mounting groove; 4. a microscope; 5. a welding workbench; 6. a control panel; 61. starting a switch; 62. a light valve indicator light; 63. a photosensitive indicator light; 7. a light source cavity; 8. a liquid crystal grating assembly; 81. a liquid crystal light valve; 82. a photosensitive sensor; 83. a liquid crystal display layer; 84. a glass substrate; 85. an electric field generating layer; 86. a transparent flexible layer; 87. a lower transparent conductive layer; 88. a transparent conductive layer is arranged on the upper surface of the upper substrate; 89. nonconductive partition points; 9. a reflecting mirror; 10. a condenser; 11. a controller; 12. a first controllable switch; 13. a second controllable switch.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The embodiment, as shown in fig. 1, a laser welding machine, comprises a frame 1, a laser emitter 2 horizontally fixed on the upper side of the frame 1, a cylinder 3 vertically and fixedly installed on one end of a laser emitting port of the laser emitter 2, a microscope 4 installed on the upper side of the cylinder 3, a welding workbench 5 arranged below the cylinder 3 and a control panel 6 for controlling the opening and closing of laser. A light source cavity 7 communicated with a laser emission port is formed in the cylinder body 3, a reflecting mirror 9 with an angle of 45 degrees is arranged at the position corresponding to the laser emission port, and when the laser emitter 2 emits laser horizontally, the laser is reflected by the reflecting mirror 9 and emitted to the welding workbench 5 from the lower side of the laser cavity.
As shown in fig. 1, the microscope 4 is communicated with the light source cavity 7 from the upper side, and an operator can align the position of the welding workbench 5 through the lens of the microscope 4 in the operation process, so as to observe the repairing condition in the welding process. While during welding, the laser transmitter 2 emits laser light horizontally and focuses the laser light on the welding table 5, intense light is generated and there is a risk that part of the laser light is reflected upwards from the welding position, into the microscope 4, which may burn the eyes of the operator. In connection with fig. 2, the cylinder 3 is, in order to reduce risks, provided with a liquid crystal grating assembly 8 horizontally in the light source cavity 7 between the mirror 9 and the microscope 4. The liquid crystal grating component 8 has two states of conducting light and blocking light, and the liquid crystal grating component 8 is electrically connected with the control panel 6, so that the liquid crystal grating component 8 is converted into a state of blocking light when the laser transmitter 2 is started, and reflected light of laser is prevented from entering the microscope 4 to burn eyes of a person.
As shown in fig. 1 and 2, the cylinder 3 includes a lower main cylinder 31 disposed at a lower side and an upper sub cylinder 32 detachably connected to the lower main cylinder 31, wherein a dividing line is formed between the lower main cylinder 31 and the upper sub cylinder 32 by using a liquid crystal grating assembly 8 and a reflecting mirror 9, the liquid crystal grating assembly 8 is fixedly connected in the upper sub cylinder 32, and the reflecting mirror 9 is fixed on the lower main cylinder 31. Specifically, the connection between the lower main cylinder 31 and the upper sub cylinder 32 may be a threaded connection. A condenser lens 10 is mounted in the bottom light source chamber 7 of the further lower main barrel 31. The condenser lens 10 can be used for focusing the microscope 4 and the laser, and can be used for accurately observing and welding in accurate positions.
As shown in fig. 1 and 2, the liquid crystal grating assembly 8 includes two liquid crystal light valves 81 disposed in parallel and a photosensor 82 disposed between the two liquid crystal light valves 81. In the energized state, the two liquid crystal light valves 81 jointly block light, and compared with a single liquid crystal light valve 81, the liquid crystal light valve has a higher light blocking effect and plays a better role in protection. The photosensor 82 is configured to output an instruction signal indicating whether or not the two liquid crystal light valves 81 are closed. When the two liquid crystal light valves 81 are turned off to isolate the light sources at the two ends of the photosensor 82, the brightness of the environment where the photosensor 82 is located is reduced, and an indication signal indicating the turning off of the light valves is output. When the liquid crystal light valve 81 is not closed or there is a damage to the liquid crystal light valve 81 on one side, the photosensor 82 cannot reach the preset illumination brightness. It is thus possible to effectively detect that the liquid crystal light valve 81 is closed or damaged.
As shown in fig. 3, the upper and lower liquid crystal light valves 81 have the same structure and each sequentially comprises a liquid crystal display layer 83, a glass base layer 84, an electric field generating layer 85 and a transparent flexible layer 86; the electric field generating layer 85 is electrically connected to the control panel 6, and generates or does not generate an electric field based on a control voltage output from the control panel 6. When no electric field is generated in the electric field generating layer 85, the liquid crystal display layer 83 is in a transparent state, and light can smoothly pass through the liquid crystal grating assembly 8. When an electric field is formed in the electric field generating layer 85, the arrangement of the liquid crystal in the liquid crystal display layer 83 is changed, and the effect of preventing the light from passing through is achieved, so that the light in the cylinder 3 cannot enter the microscope 4.
As shown in fig. 3, the electric field generating layer 85 includes a lower transparent conductive layer 87 and an upper transparent conductive layer 88 that are disposed opposite to each other, and a plurality of nonconductive partition points 89 disposed between the lower transparent conductive layer 87 and the upper transparent conductive layer 88. The nonconductive partition points 89 are distributed in a honeycomb shape. The honeycomb-shaped distribution can play a good role in uniformly distributing stress in a round structure. The transparent conductive layer can be made of ITO or TCO materials. Thus, the upper transparent conductive layer 88 and the lower transparent conductive layer 87 will produce a spacing between them at the separation of the non-conductive separation points 89, and when the electric field generating layer 85 is energized, an electric field will be generated for triggering the liquid crystal display layer 83.
Further, as shown in fig. 2, the inner wall of the middle part of the upper sub-cylinder 32 is provided with a mounting groove 33 for fixing the photosensitive sensor 82, and the photosensitive sensor 82 is fixed in the mounting groove 33 to prevent the photosensitive sensor 82 from affecting the observation of an operator using the microscope 4.
As shown in fig. 1 and 2, the control panel 6 is provided with a start switch 61 for turning on and off the laser emitter 2, a light valve indicator 62 for displaying the state of the liquid crystal light valve 81, and a photosensitive indicator 63 for displaying the state of the photosensitive sensor 82. A control module is arranged in the control panel 6 and is electrically connected with the liquid crystal light valve 81, the laser transmitter 2, the photosensitive sensor 82, the starting switch 61 and the indicator lamp; the electric signals output by the photosensitive sensor 82 and the starting switch 61 are received, and the electric signals are output to control the opening and closing of the liquid crystal light valve 81, the laser transmitter 2 and the indicator lamp.
Specifically, as shown in fig. 4, the control module includes a controller 11, a first controllable switch 12 and a second controllable switch 13, where the first controllable switch 12 includes a primary electromagnetic coil, a primary laser switch and a primary light valve switch. One end of the primary electromagnetic coil is connected to the controller 11, and the other end of the primary electromagnetic coil is grounded; the primary laser switch is connected in series with the start-up circuit of the laser transmitter 2, and the primary light valve switch is connected in series with the start-up circuits of the two liquid crystal light valves 81. The second controllable switch 13 comprises a secondary laser switch and a secondary indication switch. One end of the secondary electromagnetic coil is connected with the controller 11, the secondary laser switch is connected in series with the starting circuit of the laser transmitter 2, and the secondary indication switch is connected in series with the starting circuit of the indication lamp; the controller 11 receives the electric signals output from the start switch 61 and the photosensor 82. It should be noted that, on the starting circuit of the liquid crystal light valve 81, two liquid crystal light valves 81 and the light valve indicator lamp 62 are connected in parallel, so that when the primary light valve switch is closed, the two liquid crystal light valves 81 and the light valve indicator lamp 62 are simultaneously electrified.
When the start switch 61 is pressed, the controller 11 receives an electric signal started by the start switch 61, and outputs a start level signal to the primary electromagnetic coil, so that the primary laser switch and the primary light valve switch are switched from an open state to a closed state. The primary light valve is closed so that both liquid crystal light valves 81 and corresponding light valve indicator lights 62 are simultaneously energized. The liquid crystal light valve 81 generates an electric field in the electric field generating layer 85 such that the liquid crystal light valve 81 is opaque; the light valve indicator 62 lights up. The primary laser switch is switched from an open state to a closed state, but since the secondary laser switch is not yet closed, the laser transmitter 2 is still in an unactuated state. When the two liquid crystal light valves 81 are completely closed, the ambient brightness of the photosensor 82 falls below the threshold of the photosensor 82, so that the photosensor 82 outputs an activated electrical signal to the controller 11 at this time; the controller 11 outputs an activated level signal to the secondary electromagnetic coil. So that the secondary laser switch and the secondary indicating switch are switched from an open state to a closed state. The laser transmitter 2 is converted from an unactivated state to an activated state. While the light sensitive indicator 63 is closed.
Thus, in the above-described link, due to the arrangement of the photosensor 82, the laser emitter 2 can be activated only in the case where the brightness of the photosensor 82 is lower than the threshold value, that is, in the case where the two liquid crystal light valves 81 are completely closed. In the case of damage to the liquid crystal light valve 81 or control problems, the laser emitter 2 cannot be activated, thereby further protecting the eyes of the operator.
Further, as shown in fig. 4, the controller 11 may be a single chip, as shown in fig. 5, and the controller 11 may also be directly implemented by two electronic switches, for example, two switches and three-stage switches. The bases of the two switch three-stage switches are respectively connected with the output ends of the starting switch 61 and the photosensitive sensor 82; the collector and the emitter of the three stages of the two switches are respectively connected in series on the loop where the primary electromagnetic coil and the secondary electromagnetic coil are located.
When the laser start switch 61 is turned off, the grating control circuit does not acquire an electric signal, so that the microscope 4 is communicated with the light source cavity 7 when the laser transmitter 2 is turned off; and after the laser emitter 2 starts, the liquid crystal grating component 8 separates the microscope 4 and the light source cavity 7, so that eyes of an operator are protected under the condition that the operator does not need to wear eye protection equipment, and the risk that the eyes of the operator are burnt is reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The utility model provides a laser welding machine, includes frame (1), the laser emitter (2) of being fixed in the level of frame (1) upside, vertical fixed mounting in barrel (3) of laser emission mouth one end of laser emitter (2), install in microscope (4) of barrel (3) upside, set up in welding bench (5) and control panel (6) that control laser opened and close below barrel (3), characterized in that, barrel (3) are provided with liquid crystal grating subassembly (8) in light source chamber (7) between speculum (9) and microscope (4) level, liquid crystal grating subassembly (8) are last to be connected with grating control circuit; the grating control circuit is coupled with a starting switch (61) of the laser transmitter (2), and drives the liquid crystal grating component (8) to block light when the starting switch (61) is started; when the starting switch (61) is closed, the liquid crystal grating component (8) is driven to conduct light;
The liquid crystal grating assembly (8) comprises two liquid crystal light valves (81) which are arranged in parallel and a photosensitive sensor (82) which is arranged between the two liquid crystal light valves (81), a starting circuit of the laser transmitter (2) is connected with a controllable switch which is coupled with the output end of the photosensitive sensor (82) in series, and the photosensitive sensor (82) outputs detection voltage for closing the controllable switch when a detected light signal is smaller than a threshold value;
When the two liquid crystal light valves (81) are closed to isolate light sources at two ends of the photosensitive sensor (82) so that the brightness of the environment where the photosensitive sensor (82) is positioned is reduced, and when the brightness detected by the photosensitive sensor (82) is lower than a threshold value, the photosensitive sensor (82) can close a controllable switch connected in series on the laser emitter (2), so that the laser emitter (2) can emit laser only when the two liquid crystal light valves (81) are closed;
The control panel (6) is provided with a starting switch (61) for starting and stopping the laser emitter (2), a light valve indicator lamp (62) for displaying the state of the liquid crystal light valve (81) and a photosensitive indicator lamp for displaying the state of the photosensitive sensor (82); the control panel (6) is internally provided with a control module which is electrically connected with the liquid crystal light valve (81), the laser transmitter (2), the photosensitive sensor (82), the starting switch (61) and the indicator lamp, and the control module receives electric signals output by the photosensitive sensor (82) and the starting switch (61) and outputs the electric signals to control the opening and closing of the liquid crystal light valve (81), the laser transmitter (2) and the indicator lamp;
The control module comprises a controller (11), a first controllable switch (12) and a second controllable switch (13), wherein the first controllable switch (12) comprises a primary electromagnetic coil, a primary laser switch and a primary light valve switch; one end of the primary electromagnetic coil is connected to the controller (11), and the other end of the primary electromagnetic coil is grounded; the primary laser switch is connected in series with the starting circuit of the laser transmitter (2), and the primary light valve switch is connected in series with the starting circuits of the two liquid crystal light valves (81); the second controllable switch (13) comprises a second electromagnetic coil, a second laser switch and a second indicating switch; one end of the secondary electromagnetic coil is connected to the controller (11), the secondary laser switch is connected in series to a starting circuit of the laser transmitter (2), and the secondary indication switch is connected in series to a starting circuit of the indication lamp; the controller (11) receives the electric signals output by the start switch (61) and the photosensitive sensor (82).
2. The laser welding machine according to claim 1, characterized in that the frame (1) is provided with an indicator light for indicating the status of the liquid crystal grating assembly (8).
3. The laser welding machine according to claim 1, wherein the cylinder (3) comprises a lower main cylinder (31) arranged at the lower side and an upper sub cylinder (32) detachably connected to the lower main cylinder (31), and the liquid crystal grating assembly (8) is fixedly connected in the upper sub cylinder (32).
4. A laser welding machine according to claim 3, characterized in that the side wall of the upper sub-cylinder (32) is provided with a mounting groove (33) for fixing the photosensitive sensor (82).
5. The laser welding machine according to claim 1, wherein the liquid crystal light valve (81) comprises, in order, a liquid crystal display layer (83), a glass base layer (84), an electric field generating layer (85), and a transparent flexible layer (86); the electric field generating layer (85) is electrically connected to the grating control circuit and generates or does not generate an electric field based on a control voltage output from the grating control circuit.
6. The laser welder of claim 5, wherein the electric field generating layer (85) includes a lower transparent conductive layer (87) and an upper transparent conductive layer (88) disposed opposite each other and a number of nonconductive separation points (89) disposed between the lower transparent conductive layer (87) and the upper transparent conductive layer (88).
7. The laser welder of claim 6, wherein the nonconductive partition points (89) are distributed in a honeycomb shape.
8. The laser welding machine according to claim 1, characterized in that the bottom of the cylinder (3) is fitted with a condenser (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606903.7A CN110193666B (en) | 2019-07-06 | 2019-07-06 | Laser welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606903.7A CN110193666B (en) | 2019-07-06 | 2019-07-06 | Laser welding machine |
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| CN110193666A CN110193666A (en) | 2019-09-03 |
| CN110193666B true CN110193666B (en) | 2024-05-24 |
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| JP2022030175A (en) * | 2020-08-06 | 2022-02-18 | パナソニックＩｐマネジメント株式会社 | Laser processing head and laser processing device |
| JP7411914B2 (en) * | 2020-08-06 | 2024-01-12 | パナソニックＩｐマネジメント株式会社 | Laser processing equipment and laser processing head |
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2019
- 2019-07-06 CN CN201910606903.7A patent/CN110193666B/en active Active
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|---|---|---|---|---|
| US4564853A (en) * | 1985-02-08 | 1986-01-14 | Polaroid Corporation | Electronic image sensing and printing apparatus |
| CN1834749A (en) * | 2005-03-14 | 2006-09-20 | 北京万方同辉科技有限公司 | Fast rising time high valve and its control method |
| CN201453486U (en) * | 2009-06-27 | 2010-05-12 | 山西平阳重工机械有限责任公司 | Novel welding protection mask |
| CN204277227U (en) * | 2014-12-15 | 2015-04-22 | 深圳市通发激光设备有限公司 | With the laser-beam welding machine of liquid crystal filter protector |
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