CN116571904A - Laser head collision protection device and protection method - Google Patents
Laser head collision protection device and protection method Download PDFInfo
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- CN116571904A CN116571904A CN202310848670.8A CN202310848670A CN116571904A CN 116571904 A CN116571904 A CN 116571904A CN 202310848670 A CN202310848670 A CN 202310848670A CN 116571904 A CN116571904 A CN 116571904A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000008034 disappearance Effects 0.000 claims 1
- 238000003698 laser cutting Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000004372 laser cladding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The application discloses a laser head collision protection device and a protection method, wherein the laser head collision protection device comprises a body, an upper rotary spherical boss, a lower rotary spherical boss and a spherical seat, the body comprises an upper boss and a connecting column connected with the upper boss, the spherical seat is sleeved on the connecting column and connected with the connecting column, the upper rotary spherical boss and the lower rotary spherical boss are fixedly connected, a spherical cavity is formed inside the upper rotary spherical boss and the lower rotary spherical boss, the spherical seat is positioned in the spherical cavity, and the laser head collision protection device further comprises a reset spring arranged between the upper rotary spherical boss and the upper boss.
Description
Technical Field
The application relates to the field of laser head protection, in particular to a laser head collision protection device and a protection method.
Background
Laser cutting, welding and cladding techniques are three important laser processing techniques in the industry. The former is different from the latter in that the former is a subtractive processing technique and the latter is an additive processing technique. The principle is that the energy transmitted by the optical fiber is converged into high-energy light spots through a lens group in the laser head so as to achieve the purpose of material processing.
The capacitive distance sensor of the laser cutting head is used for detecting the distance between the nozzle and the plate. However, when the upwarped processed plate is just in the blind area detected by the capacitive sensor of the laser cutting head, the laser cutting head does not make an avoidance response when moving forwards, so that collision can be caused. On the other hand, the large amount of photo-induced plasma generated during laser dicing can also interfere with the capacitive distance sensor, which can also lead to collisions.
Seriously, the collision can lead to the damage of the laser head sensor main body, the air leakage of the cooling air circuit, the reduction of the cutting precision of the laser head and the like. With attendant maintenance problems. Because laser cutting heads, laser welding heads, or laser cladding heads may involve proprietary technology of the relevant company, high inspection and component replacement costs are required. At the same time, the laser head returns to the factory to maintain and cause the equipment to be idle, which further increases the cost burden. Accordingly, a corresponding crash protection scheme is urgently needed to reduce the use cost of the apparatus.
At present, the laser head collision protection scheme can be roughly divided into: an active collision detection scheme and a passive collision avoidance scheme. The active collision detection technology is that before collision, the system can detect and stop suddenly in time. The passive anti-collision technology is that after collision, the anti-collision device can be quickly restored to a normal use state by replacing cheap and easy-to-wear parts.
The capacitive sensor active collision detection scheme is a more viable active collision detection scheme. In the scheme, one pole of the annular capacitor is arranged on the outer side of the sensor column, the workpiece to be cut is the other pole, and when the two poles are kept within a relatively safe distance, the system can cut normally. When a very close proximity of the annular capacitance to the dangerous distance threshold is placed outside the sensor cylinder, the system may halt the cut. Besides the capacitive sensor active collision detection scheme, there are active collision detection technologies such as inductance, photoelectricity and acoustic wave. However, due to the complexity of the laser cutting working scenario, the active collision detection scheme relies heavily on detection strategies and interference filtering, and is also prone to false alarms.
Because of higher reliability, the passive anti-collision scheme is currently the most promising application scheme. There are mainly four types:
1. the whole laser head is separated from the vertical mounting table after being impacted;
2. after the laser head is impacted, the upper and lower laser head components attracted by the protection pins, screws or magnets are separated, and the lower laser head component is separated from the upper laser head component;
3. and detecting by an XYZ three-direction acceleration sensor. After being impacted, the acceleration generates abrupt change, the generated electric signal is fed back to the CNC system, and the CNC system stops the axial movement of the laser head in time;
4. the laser head or the laser head lower component inclines after being impacted and can be manually or automatically reset after being separated from an impacted workpiece;
by comparison, it was found that: 1 scheme needs protection stay cord to connect the laser head, but if strike from the stay cord direction, the stay cord breaks easily, and the laser head has the risk of dropping the striking damage. 2 although there are cases of successful application at present, after separation, dust easily enters the internal cavity of the laser head, contaminating the lenses. The reaction time of scheme 3 lags behind because the impact occurs very fast, it has already occurred when the CNC system is not reacting. Scheme 4 is the most cost-effective and application-prospect technology, and no parts need to be replaced after being impacted. At present, no company adopts the scheme at home. The impact protection scheme has the advantages that on one hand, the use and maintenance cost of customers is saved, and on the other hand, the recognition degree and the overall competitiveness of the product are improved.
Disclosure of Invention
The application solves the technical problem of providing a laser head collision protection device which can incline after the laser head is impacted and can realize automatic resetting after the laser head is separated from an impacted workpiece.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a laser head collision protection device, includes body, goes up rotatory ball-type boss, lower rotatory ball-type boss and ball seat, rotatory ball-type boss bottom down is provided with the copper mouth, the body includes boss and the spliced pole of being connected with last boss, ball-type seat cover is established on the spliced pole and is connected with the spliced pole, go up rotatory ball-type boss and rotatory ball-type boss fixed connection down, go up rotatory ball-type boss and the inside ball-type cavity that forms of rotatory ball-type boss down, ball seat is located the ball-type cavity for go up rotatory ball-type boss and be restricted in the space that ball seat and last boss formed, go up rotatory ball-type boss and can do rotary motion round ball seat, still including setting up the reset spring between rotatory ball-type boss and the last boss, after collision external force disappears, reset spring can drive rotatory ball-type boss and reset relative body, still including the striking sensor that is used for detecting whether suffers the striking.
Further is: the ball-type seat is provided with a positioning groove, a positioning ball is arranged in the positioning groove, a positioning notch of the positioning groove is smaller than the diameter of the positioning ball, a positioning spring is arranged between the positioning ball and the bottom wall of the positioning groove, and under the action of the positioning spring, a part of the positioning ball extends out of the positioning notch;
the inner side wall of the upper rotary spherical boss is provided with a blind hole matched with the positioning ball, and when the upper rotary spherical boss is positioned at the reset position, the extending part of the positioning ball is positioned in the blind hole.
Further is: the blind hole circumference is provided with annular inclined plane, annular inclined plane inclines towards the blind hole direction.
Further is: the connecting column is further provided with a first inclined positioning hole and a first set screw hole, the spherical seat is provided with a second inclined positioning hole matched with the first inclined positioning hole, the connecting column further comprises a positioning piece, the positioning piece is located in the first inclined positioning hole and the second inclined positioning hole, the spherical seat is further provided with a second set screw hole matched with the first set screw hole, and the connecting column further comprises a set screw locked in the first set screw hole and the second set screw hole.
Further is: the upper boss is provided with an upper spring limiting ring used for limiting one end of the return spring, and the upper rotary spherical boss is provided with a lower spring limiting ring used for limiting the other end of the return spring.
Further is: the impact sensing sensor is a plurality of strain resistor disc force sensors arranged on the outer surface of the reset spring.
Further is: the upper boss is provided with an annular enclosing baffle, and the impact sensing sensor is a distance detection sensor which is arranged on the inner side of the annular enclosing baffle and used for detecting the distance between the annular enclosing baffle and the upper rotary spherical boss or the lower rotary spherical boss.
Further is: the spherical seat is a hemispherical seat or a spherical seat.
Further is: the ball seat is arranged on the upper rotary spherical boss, and the ball seat is arranged on the lower rotary spherical boss; the novel dust-proof device is characterized by further comprising a stretchable dust cover, one end of the dust cover is connected with the upper boss, and the other end of the dust cover is connected with the upper rotary spherical boss.
The application also discloses a laser head collision protection method, which comprises the laser head collision protection device, wherein after the upturned workpiece collides with the lower rotary spherical boss or the copper nozzle, a cavity formed by the upper rotary spherical boss and the lower rotary spherical boss rotates around the spherical seat, and meanwhile, the reset spring is bent, the collision sensing sensor detects a collision signal, and then the system suddenly stops;
when the impact position is removed, the combined body of the lower rotary spherical boss and the upper rotary spherical boss is restored to the vertical position under the elastic force of the reset spring, and the positioning balls are clamped into the blind holes.
The beneficial effects of the application are as follows: the setting of this structure can make and produce the slope after the laser head bumps to reducible laser head damage that causes after laser head and the hard collision of work piece, simultaneously with the work piece that receives the striking break away from the back, the laser head can realize manual or automatic re-setting, thereby can save customer's use and maintenance cost.
Drawings
Fig. 1 is a front view of a laser head crash protection apparatus according to an embodiment of the present application.
Fig. 2 is a bottom view of a laser head crash protection apparatus according to an embodiment of the present application.
Fig. 3 is a cross-sectional view of a hemispherical set screw in a laser head crash protection apparatus according to an embodiment of the application.
Fig. 4 is a cross-sectional view of a full sphere set screw in a laser head crash protection apparatus in accordance with an embodiment of the application.
Fig. 5 is a cross-sectional view of a laser head crash protection device according to an embodiment of the present application, including a positioning ball, a spring, and a positioning pin.
Fig. 6 is a cross-sectional view showing a structure of a laser head crash protection apparatus using a distance sensing sensor to sense a crash according to an embodiment of the present application.
Fig. 7 is a schematic diagram of a sensor main body structure in the laser head collision protection apparatus according to an embodiment of the present application.
Fig. 8 is a schematic diagram of an upper rotating spherical boss structure in the laser head collision protection device according to the embodiment of the application.
Fig. 9 is a schematic cross-sectional view of an upper rotating spherical boss structure in a laser head collision protection apparatus according to an embodiment of the present application.
Fig. 10 is a schematic view of a spherical seat structure in the laser head collision protection apparatus according to an embodiment of the present application.
Fig. 11 is a schematic diagram of a lower rotating spherical boss structure in the laser head collision protection device according to the embodiment of the application.
Fig. 12 is a schematic rotation diagram of an impact structure for receiving impact in a rightward direction in the laser head impact protection device according to the embodiment of the application.
Fig. 13 is a schematic rotation diagram of an impact structure for receiving impact in a leftward direction in the laser head impact protection device according to the embodiment of the present application.
Marked in the figure as: the device comprises a body 1, an upper reset alignment mark 101, an upper spring limiting ring 102, a first inclined positioning hole 103, a first set screw hole 104, an upper boss 105, a connecting column 106, a reset spring 2, an upper rotary spherical boss 3, a lower reset alignment mark 301, a lower spring limiting ring 302, an annular inclined plane 303, a blind hole 304, a strain resistor disc force sensor 4, a lower rotary spherical boss 5, a spherical cavity 501, a copper nozzle 6, a first screw 7, a set screw 8, a spherical seat 9, a second set screw hole 901, a second inclined positioning hole 902, a positioning groove 903, a sealing ring 10, a positioning ball 11, a positioning spring 12, a positioning piece 13 and a distance detection sensor 14.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings.
As shown in fig. 1 to 4, an embodiment of the present application discloses a laser head collision protection device, which comprises a body 1, an upper rotary spherical boss 3, a lower rotary spherical boss 5 and a spherical seat 9, wherein the bottom end of the lower rotary spherical boss 5 is provided with a copper nozzle 6, the body 1 comprises an upper boss 105 and a connecting column 106 connected with the upper boss 105, the spherical seat 9 is sleeved on the connecting column 106 and connected with the connecting column 106, the upper rotary spherical boss 3 and the lower rotary spherical boss 5 are fixedly connected, a spherical cavity 501 is formed inside the upper rotary spherical boss 3 and the lower rotary spherical boss 5, the spherical seat 9 is positioned in the spherical cavity 501, so that the upper rotary spherical boss 3 is limited in a space formed by the spherical seat 9 and the upper boss 105, the upper rotary spherical boss 3 can perform rotary motion around the spherical seat 9, the laser head comprises a reset spring 2 arranged between the upper rotary spherical boss 3 and the upper boss 105, and after the collision external force disappears, the reset spring 2 can drive the upper rotary spherical boss 3 to reset relative to the body 1, and further comprises an induction sensor for detecting whether the collision is suffered by the collision.
Specifically, the upper rotary spherical boss 3 and the lower rotary spherical boss 5 may be fixedly connected by a first screw 7, and the impact sensing sensor may be connected with a control device of a cutting or welding system.
Specifically, in this structure, the reset spring can specifically select for use the rectangle spring, and the rectangle spring has better stability and reset effect.
The laser head collision protection device is arranged on a laser cutting head, a laser welding head or a laser cladding head, in the working process, after an upturned workpiece collides with a lower rotary spherical boss 5 or a copper nozzle 6, a cavity formed by the upper rotary spherical boss 3 and the lower rotary spherical boss 5 rotates around a spherical seat 9, meanwhile, a reset spring 2 is bent, a collision sensing sensor detects a collision signal, and then a control device controls a system to suddenly stop;
when the impact position is removed, the combination of the lower rotary spherical boss 5 and the upper rotary spherical boss 3 is restored to the vertical position under the elastic force of the return spring 2.
The setting of this structure can make and produce the slope after the laser head bumps to reducible laser head damage that causes after laser head and the hard collision of work piece, simultaneously with the work piece that receives the striking break away from the back, the laser head can realize manual or automatic re-setting, thereby can save customer's use and maintenance cost.
In this embodiment, as shown in fig. 5, 9 and 10, a positioning groove 903 is provided on the ball seat 9, a positioning ball 11 is provided in the positioning groove 903, a positioning notch of the positioning groove 903 is smaller than the diameter of the positioning ball 11, a positioning spring 12 is provided between the positioning ball 11 and a bottom wall of the positioning groove 903, and under the action of the positioning spring 12, a part of the positioning ball 11 extends out of the positioning notch;
the inner side wall of the upper rotary spherical boss 3 is provided with a blind hole 304 matched with the positioning ball 11, and when the upper rotary spherical boss 3 is in a reset position, the extending part of the positioning ball 11 is positioned in the blind hole 304.
The blind hole 304 is circumferentially provided with an annular inclined surface 303, and the annular inclined surface 303 is inclined towards the blind hole 304.
In this structure, when aligning the position, location ball 11 extension is located blind hole 304, because when receiving the striking, go up rotatory ball boss 3, lower rotatory ball boss 5 can rotate round ball seat 9 to make location ball 11 can break away from blind hole 304, when withdrawing the striking position, the combination of rotatory ball boss 5 down and last rotatory ball boss 3 resumes vertical position under reset spring 2's elasticity effect, makes location ball 11 card go into blind hole 304 again.
The positioning ball 11 and blind hole 304 arrangement described above ensures that the laser head remains stable in the event of a light impact and great acceleration.
Meanwhile, due to the arrangement of the annular inclined surface 303, when the structure slightly deviates from the reset position, the positioning ball 11 can roll into the blind hole 304 along the circular inclined surface, so that a good reset effect is achieved.
In this embodiment, as shown in fig. 7 and 10, the connecting post 106 is further provided with a first inclined positioning hole 103 and a first set screw hole 104, the ball-shaped seat 9 is provided with a second inclined positioning hole 902 matched with the first inclined positioning hole 103, the ball-shaped seat further comprises a positioning piece 13, the positioning piece 13 is located in the first inclined positioning hole 103 and the second inclined positioning hole 902, the ball-shaped seat 9 is further provided with a second set screw hole matched with the first set screw hole 104, and the ball-shaped seat further comprises a set screw 8 locked in the first set screw hole 104 and the second set screw hole.
Specifically, in the above structure, the positioning member 13 may be a positioning pin, a shoulder, or the like.
Specifically, when the integral structure is assembled, the reset spring 2 is assembled in the axial direction of the body 1, the upper rotary spherical boss 3 is sleeved on the connecting column 106, the spherical seat 9 is installed, the spherical seat 9 is sleeved on the connecting column 106, the connecting column 106 and the spherical seat 9 are positioned and connected by the positioning piece 13, the fastening screw 8 penetrates through the first fastening screw hole 104 and the second fastening screw hole to fasten the connecting column 106 and the spherical seat 9, the lower rotary spherical boss 5 is fixedly connected with the upper rotary spherical boss 3, and at the moment, the upper rotary spherical boss 3 is limited in a space formed by the upper boss 105 of the spherical seat 9 and can rotate around the spherical seat 9 or axially move along the body 1.
Specifically, since the set screw 8 has a minute gap at the time of locking, the positioning member 13 is provided in the present application. The ball-shaped seat 9 and the body 1 can be accurately positioned, and meanwhile, the distance between the nozzle and the workpiece or the plate to be cut can be accurately positioned, so that the accurate work of the equipment is ensured.
In this embodiment, as shown in fig. 1, the upper boss 105 is provided with an upper spring limiting ring 102 for limiting one end of the return spring 2, and the upper rotating spherical boss 3 is provided with a lower spring limiting ring 302 for limiting the other end of the return spring 2.
Specifically, the above-mentioned setting of going up spring stop collar 102 and lower spring stop collar 302 can restrict reset spring 2's lateral shifting, guarantees reset spring 2's stability, simultaneously, in order to strengthen reset spring 2's stability, still can adopt modes such as welding, clamp, bonding to fix reset spring 2's upper and lower both ends respectively on body 1 and upper rotary ball-type boss 3.
In this embodiment, the impact sensing sensor may take various forms, specifically:
the first form is: as shown in fig. 1, the impact sensing sensor is a plurality of strain gauge force sensors 4 disposed on the outer surface of the return spring 2.
Specifically, when the upturned workpiece collides with the lower rotary spherical boss 5 or the nozzle, the spherical cavity formed by the upper rotary spherical boss 3 and the lower rotary spherical boss 5 rotates around the spherical seat 9, and at the same time, the return spring 29 is bent. The strain resistor force sensor 4 stuck on the surface of the return spring 2 bears bending or stretching force, so that the resistance value changes, and the control device judges that the laser head is impacted by detecting the change of the resistance value of the strain resistor force sensor 4, and then the system is suddenly stopped.
The second form is: as shown in fig. 6, the upper boss 105 is provided with an annular surrounding block, and the impact sensing sensor is a distance detecting sensor 14 disposed at the inner side of the annular surrounding block and used for detecting the distance between the annular surrounding block and the upper rotary spherical boss 3 or the lower rotary spherical boss 5.
The distance sensor may be a capacitive distance sensor, an inductive distance sensor, a photoelectric distance sensor, or the like.
Specifically, when the upturned workpiece collides with the lower rotary spherical boss 5 or the nozzle, the spherical cavity formed by the upper rotary spherical boss 3 and the lower rotary spherical boss 5 rotates around the spherical seat 9, and at the same time, the return spring 29 is bent. The distance detection sensor 14 detects that the distance between the surrounding shield and the upper rotary spherical boss 3 or the lower rotary spherical boss 5 changes, and the control device judges that the laser head is impacted by receiving the signal of the detection distance detection sensor 14. Subsequently, the system is scram.
The impact sensing sensor can be arranged to feed back impact signals rapidly, so that corresponding actions can be made rapidly, and the cutting head is prevented from being impacted more seriously.
In this embodiment, the spherical seat 9 is a hemispherical seat 9 or a spherical seat 9.
In particular, it should be explained that the middle part of the body 1 is a hollow structure through which the air supply path passes.
Specifically, the spherical seat 9 is preferably used in the structure, and because the hemispherical cavity exists in the hemispherical seat 9, the coaxial gas path can pass through the hemispherical cavity, and because the gas path drift diameter of the hemispherical cavity is suddenly changed compared with that of the sensor main body, the disturbance of the coaxial gas flow can be caused, and the disturbance of the gas flow can directly influence the quality of cutting, welding or cladding. The whole ball-shaped seat 9 eliminates the influence of the abrupt change of the air path and the drift diameter.
In this embodiment, as shown in fig. 4, the device further includes a sealing ring 10 disposed between the ball seat 9 and the lower rotary ball boss 5, and the body 1 and the upper rotary ball boss 3 are respectively provided with an upper reset alignment mark 101 and a lower reset alignment mark 301 for aligning positions.
In this embodiment, the device further comprises a stretchable dust cover, one end of the dust cover is connected with the upper boss 105, and the other end of the dust cover is connected with the upper rotary spherical boss 3.
Specifically, the stretchable dust cover may be a corrugated dust cover.
The design of the stretchable dust cover can prevent dust from entering the laser head from the reset spring, so that the work of the laser head is affected.
Specifically, in the above structure, the sealing effect of the coaxial air path can be ensured by the arrangement of the sealing ring 10, and meanwhile, when the body 1 and the upper rotary spherical boss 3 are not completely reset, manual rotary reset can be performed, so that the upper reset alignment mark 101 and the lower reset alignment mark 301 are aligned, and when the upper reset alignment mark 101 and the lower reset alignment mark 301 are aligned, the upper rotary spherical boss 3 is reset to an accurate position at the moment.
The application also discloses a laser head collision protection method, which comprises the laser head collision protection device, when the upturned workpiece collides with the lower rotary spherical boss 5 or the copper nozzle 6, the cavity formed by the upper rotary spherical boss 3 and the lower rotary spherical boss 5 rotates around the spherical seat 9, meanwhile, the reset spring 2 is bent, the collision sensing sensor detects a collision signal, and then the system suddenly stops;
when the impact position is removed, the combination of the lower rotary spherical boss 5 and the upper rotary spherical boss 3 is restored to the vertical position under the elastic force of the return spring 2, and the positioning ball 11 is clamped into the blind hole 304.
The method can lead the laser head to incline after collision, thereby reducing the damage of the laser head caused by hard collision of the laser head and the workpiece, and simultaneously realizing manual or automatic resetting of the laser head after separation from the impacted workpiece, thereby saving the use and maintenance cost of customers.
While the foregoing is directed to embodiments of the present application, other and further details of the application may be had by the present application, it should be understood that the foregoing description is merely illustrative of the present application and that no limitations are intended to the scope of the application, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the application.
Claims (10)
1. The utility model provides a laser head collision protection device which characterized in that: including body (1), go up rotatory ball boss (3), rotatory ball boss (5) and ball seat (9) down, rotatory ball boss (5) bottom down is provided with copper mouth (6), body (1) are including last boss (105) and spliced pole (106) of being connected with last boss (105), ball seat (9) cover is established on spliced pole (106) and is connected with spliced pole (106), go up rotatory ball boss (3) and rotatory ball boss (5) fixed connection down, go up rotatory ball boss (3) and rotatory ball boss (5) inside formation ball cavity (501) down, ball seat (9) are located ball cavity (501) for go up rotatory ball boss (3) and be restricted in ball seat (9) and go up the space that boss (105) formed, go up rotatory ball boss (3) and can be round ball seat (9) and do rotary motion, still including setting up reset spring (2) between rotatory ball boss (3) and last boss (105), after bump disappearance, reset spring (2) can be suffered the relative impact body (1) and is suffered and is felt in the sensor that bump sensor is reset.
2. The laser head crash protection apparatus of claim 1, wherein: a positioning groove (903) is formed in the spherical seat (9), a positioning ball (11) is arranged in the positioning groove (903), a positioning notch of the positioning groove (903) is smaller than the diameter of the positioning ball (11), a positioning spring (12) is arranged between the positioning ball (11) and the bottom wall of the positioning groove (903), and under the action of the positioning spring (12), part of the positioning ball (11) stretches out of the positioning notch;
the inner side wall of the upper rotary spherical boss (3) is provided with a blind hole (304) matched with the positioning ball (11), and when the upper rotary spherical boss (3) is positioned at the reset position, the extending part of the positioning ball (11) is positioned in the blind hole (304).
3. The laser head crash protection apparatus as defined in claim 2, wherein: the blind hole (304) is circumferentially provided with an annular inclined plane (303), and the annular inclined plane (303) is inclined towards the blind hole (304).
4. The laser head crash protection apparatus of claim 1, wherein: still be provided with first slope locating hole (103) and first holding screw hole (104) on spliced pole (106), be provided with on ball-type seat (9) with first slope locating hole (103) complex second slope locating hole (902), still include setting piece (13), setting piece (13) are located first slope locating hole (103) and second slope locating hole (902), still be provided with on ball-type seat (9) with first holding screw hole (104) complex second holding screw hole, still include holding screw (8) of locking in first holding screw hole (104) and second holding screw hole.
5. The laser head crash protection apparatus of claim 1, wherein: an upper spring limiting ring (102) used for limiting one end of the return spring (2) is arranged on the upper boss (105), and a lower spring limiting ring (302) used for limiting the other end of the return spring (2) is arranged on the upper rotary spherical boss (3).
6. The laser head crash protection apparatus of claim 1, wherein: the impact sensing sensor is a plurality of strain resistor disc force sensors (4) arranged on the outer surface of the reset spring (2).
7. The laser head crash protection apparatus of claim 1, wherein: the upper boss (105) is provided with an annular surrounding baffle, and the impact sensing sensor is a distance detection sensor (14) which is arranged on the inner side of the annular surrounding baffle and used for detecting the distance between the annular surrounding baffle and the upper rotary spherical boss (3) or the lower rotary spherical boss (5).
8. The laser head crash protection apparatus of claim 1, wherein: the spherical seat (9) is a hemispherical seat (9) or a spherical seat (9).
9. The laser head crash protection apparatus of claim 1, wherein: the device further comprises a sealing ring (10) arranged between the ball seat (9) and the lower rotary ball boss (5), wherein an upper reset alignment mark (101) and a lower reset alignment mark (301) for aligning positions are respectively arranged on the body (1) and the upper rotary ball boss (3);
the novel dust-proof device is characterized by further comprising a stretchable dust cover, one end of the dust cover is connected with the upper boss (105), and the other end of the dust cover is connected with the upper rotary spherical boss (3).
10. Laser head collision protection method comprising a laser head collision protection apparatus according to any one of claims 1 to 9, characterized in that: when the upturned workpiece collides with the lower rotary spherical boss (5) or the copper nozzle (6), a cavity formed by the upper rotary spherical boss (3) and the lower rotary spherical boss (5) rotates around the spherical seat (9), meanwhile, the reset spring (2) is bent, the collision sensing sensor detects a collision signal, and then the system suddenly stops;
when the impact position is removed, the combination of the lower rotary spherical boss (5) and the upper rotary spherical boss (3) is restored to the vertical position under the elastic force of the reset spring (2), and the positioning ball (11) is clamped into the blind hole (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310848670.8A CN116571904A (en) | 2023-07-12 | 2023-07-12 | Laser head collision protection device and protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310848670.8A CN116571904A (en) | 2023-07-12 | 2023-07-12 | Laser head collision protection device and protection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116571904A true CN116571904A (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310848670.8A Pending CN116571904A (en) | 2023-07-12 | 2023-07-12 | Laser head collision protection device and protection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116571904A (en) |
Cited By (2)
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| CN116944716A (en) * | 2023-09-20 | 2023-10-27 | 江苏迅镭激光科技有限公司 | Anti-collision height sensor for laser processing and anti-collision method |
| CN117629070A (en) * | 2024-01-24 | 2024-03-01 | 东莞市兆丰精密仪器有限公司 | Laser measuring equipment and anti-collision method |
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Application publication date: 20230811 |