CN110328455B - Square tube cutting workstation - Google Patents
Square tube cutting workstation Download PDFInfo
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- CN110328455B CN110328455B CN201910756629.1A CN201910756629A CN110328455B CN 110328455 B CN110328455 B CN 110328455B CN 201910756629 A CN201910756629 A CN 201910756629A CN 110328455 B CN110328455 B CN 110328455B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 61
- 238000003698 laser cutting Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000007306 turnover Effects 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 24
- 230000001681 protective effect Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a square pipe cutting workstation, which comprises a cutting assembly and a laser cutting workpiece clamping assembly, wherein the cutting assembly comprises a mounting table, a mounting table driving mechanism, a connecting arm arranged on the surface of the mounting table, a connecting arm driving mechanism and a laser cutting device arranged at the end part of the connecting arm, and the laser cutting workpiece clamping assembly comprises two moving tables, a moving table driving mechanism and a plurality of workpiece clamping devices; the workpiece clamping device comprises a base, a supporting plate arranged above the base, a supporting plate lifting device arranged on the surface of the base and connected with the supporting plate through an output shaft, and clamping plates arranged on the left side and the right side of the surface of the supporting plate; one side of the mobile station is provided with an opening, the inner side surface of the mobile station is provided with a turnover disc, the inner side surface of the turnover disc is provided with a positioning groove matched with the square tube, and the mobile station is also provided with a turnover disc driving motor for driving the turnover disc to rotate. The square tube cutting workstation provided by the invention has the advantages of small environmental pollution, high automation degree and high working efficiency.
Description
Technical Field
The invention relates to pipe processing equipment, in particular to a square pipe cutting workstation.
Background
At present, drilling equipment is generally adopted when the hole machining is carried out on the opposite side pipe, and the noise is large when the hole machining is carried out on the drilling equipment, so that more scraps are generated, and the working environment is influenced. In addition, the existing square tube needs manual auxiliary overturning and positioning when holes are machined on each surface, so that the precision is low, and the operation is troublesome.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a square tube cutting workstation of a novel structure, which has a more industrial utility value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the square tube cutting workstation which has the advantages of small environmental pollution, high automation degree and high working efficiency.
The square pipe cutting workstation comprises a cutting assembly and a laser cutting workpiece clamping assembly, wherein the cutting assembly comprises an installation table, an installation table driving mechanism for driving the installation table to move along a first guide rail, a connecting arm arranged on the surface of the installation table, a connecting arm driving mechanism for driving the connecting arm to move, and a laser cutting device arranged at the end part of the connecting arm, and the laser cutting workpiece clamping assembly comprises two moving tables, a moving table driving mechanism for driving the moving tables to move along a second guide rail, and a plurality of workpiece clamping devices positioned between the two moving tables, wherein the workpiece clamping devices are distributed along the direction parallel to the first guide rail;
the workpiece clamping device comprises a base, a supporting plate arranged above the base, a supporting plate lifting device arranged on the surface of the base and connected with an output shaft and the supporting plate, and clamping plates arranged on the left side and the right side of the surface of the supporting plate;
the mobile station is characterized in that an opening is formed in one side of the mobile station, a turnover disc is arranged on the inner side face of the mobile station, a positioning groove matched with the square tube is formed in the inner side face of the turnover disc, and a turnover disc driving motor for driving the turnover disc to rotate is further arranged on the mobile station.
Furthermore, in the square tube cutting workstation disclosed by the invention, the surface of the base is provided with the protection box, and the supporting plate lifting device is arranged in the protection box.
Furthermore, in the square tube cutting workstation disclosed by the invention, the supporting plate lifting device is an air cylinder, an oil cylinder or a linear motor.
Furthermore, in the square pipe cutting workstation disclosed by the invention, the lifting table is arranged on the surface of the installation table, and the machine body of the connecting arm driving mechanism is arranged on the lifting table.
Furthermore, the square pipe cutting workstation comprises a driving motor, a gear connected with an output shaft of the driving motor and a rack arranged on the ground and meshed with the gear, wherein the driving motor of the driving mechanism of the mounting table is arranged in the mounting table, and the driving motor of the driving mechanism of the moving table is arranged in the moving table.
Furthermore, in the square tube cutting workstation disclosed by the invention, the installation table is also provided with a proximity sensor.
Further, the square pipe cutting workstation comprises a cutting head body and a nozzle positioned at the front end of the cutting head body, the nozzle comprises a nozzle base body, an upper accommodating groove is arranged on the upper surface of the nozzle base body, a lower accommodating groove is arranged on the lower surface of the nozzle base body, a transmission hole which is communicated with the upper accommodating groove and the lower accommodating groove is arranged on the nozzle base body, a connecting cover assembly which is connected with the nozzle base body is arranged above the upper accommodating groove, a nozzle assembly which is connected with the nozzle base body is arranged in the lower accommodating groove, a laser output hole which penetrates through the top surface of the nozzle assembly to the bottom surface of the nozzle assembly and is communicated with the transmission hole is arranged in the middle of the nozzle assembly, an inward inclined spray hole which extends from the side surface of the nozzle assembly to the bottom surface of the nozzle assembly and an outward inclined spray hole which extends from the inner side surface of the inward inclined spray hole to the bottom surface of the nozzle assembly is obliquely intersected with the central shaft of the laser output hole, an inner cavity and a main gas connecting pipe which is communicated with the inner cavity and a gas connecting pipe which is communicated with the inner cavity are respectively arranged on the outer side surface of the nozzle base body.
By means of the scheme, the invention has at least the following advantages: according to the square tube cutting workstation, the laser cutting device arranged at the end part of the connecting arm is driven to process holes on the square tube arranged on the laser cutting workpiece clamping assembly through the parts such as the mounting table, the connecting arm and the connecting arm driving mechanism, so that the processing automation degree is high, the pollution and the noise are low, and the working environment of operators is improved. When the square pipe or other pipe fitting is in specific work, the square pipe or other pipe fitting is placed on the workpiece clamping device in a travelling crane or manual mode, and at the moment, the square pipe is positioned on the surface of the supporting plate and is transversely positioned by clamping plates on two sides of the square pipe. After the square tube is placed, the movable seats at the two ends of the square tube move towards the end parts of the square tube until the end parts of the square tube pass through the opening on the movable table and enter the positioning groove of the turning disc, so that the longitudinal positioning of the square tube is completed. After the positioning is finished, the movable seats at the two ends are restored to the original positions, the mounting table of the cutting assembly is driven by the mounting table driving mechanism to move to the preset position along the first guide rail, then the connecting arm driving assembly drives the connecting arm to move towards the direction close to the square pipe until the laser cutting device at the end part of the connecting arm moves to the upper part of the square pipe, the laser cutting device is a laser cutting head, the cutting operation on a workpiece is realized by utilizing laser beams, and the cutting process is low in noise and small in scraps. Specifically, the laser cutting device is used for beating laser beams emitted by the laser on the surface of the square pipe, and the laser cutting device can realize two-dimensional movement under the driving of the connecting arm driving assembly and the mounting table driving assembly, so that the punching operation of the pipe fitting is realized. After one side of the square tube is perforated, the connecting arm can restore to the original position, and the movable table moves to the end part of the square tube until the end part of the movable table is positioned in the positioning groove, and then the supporting plate descends by a certain height under the driving of the supporting plate lifting device so as to facilitate the overturning of the square tube. Then the turnplate driving motor drives the turnplate to rotate to the position where the other surface of the square tube faces upwards, then the supporting plate and the mobile station are sequentially restored to the original positions, and the laser cutting device can realize the punching operation of the other surface of the square tube in a similar manner until all the surfaces of the square tube are punched. Compared with the traditional drilling equipment, the square pipe cutting workstation has higher automation degree and less environmental pollution.
In conclusion, the square tube cutting workstation disclosed by the invention has the advantages of small environmental pollution, high automation degree and high working efficiency.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a plan view of a square tube cutting station;
FIG. 2 is a schematic view of a laser cutting device;
FIG. 3 is a partial cross-sectional view of a nozzle;
FIG. 4 is a top view of the output plate;
FIG. 5 is a cross-sectional view of the showerhead assembly;
FIG. 6 is a cross-sectional view of a nozzle base;
FIG. 7 is a front view of the workpiece clamping device;
fig. 8 is a schematic diagram of a structure of a mobile station;
fig. 9 is a schematic view of the structure of the mounting table.
In the figure, 1: a cutting assembly; 2: a laser cutting workpiece clamping assembly; 3: a mounting table; 4: a first guide rail; 5: a mounting table driving mechanism; 6: a connecting arm; 7: a link arm driving mechanism; 8: a laser cutting device; 9: a mobile station; 10: a mobile station driving mechanism; 11: a workpiece clamping device; 12: a base; 13: a supporting plate; 14: a pallet lifting device; 15: a clamping plate; 16: a turn-over disc; 17: a positioning groove; 18: a turnover disc driving motor; 19: a second guide rail; 20: a protective case; 21: an auxiliary support spring; 22: a slide bar; 23: a screw rod; 24: an adjusting hand wheel; 25: a lifting table; 26: a driving motor; 27: a gear; 28: a rack; 29: a proximity sensor; 30: a cutting head body; 31: a nozzle; 32: a nozzle base; 33: an upper receiving groove; 34: a lower accommodating groove; 35: a transmission hole; 36: a connection cap assembly; 37: a spray head assembly; 38: a laser output aperture; 39: inward inclined spray holes; 40: outward inclined spray holes; 41: a main gas connection pipe; 42: an auxiliary gas connecting pipe; 43: a head main body; 44: an output board; 45: a lower clamp ring; 47: a first diagonal airway; 48: a second diagonal airway; 49: an annular airway; 50: a seal ring; 51: a connecting cover body; 52: a compression ring is arranged; 53: perforating; 54: a first lens group; 55: a locking ring; 56: a protective mirror ring; 57: a first housing; 58: a mounting rack driving device; 59: a mounting frame; 60: a lens; 61: perforating; 62: a second housing; 63: a first half mirror; 64: a first mounting box; 65: a first straightening mirror; 66: an optical fiber connector; 67: a second mounting box; 68: a light source; 69: a second collimating mirror; 70: a second half mirror; 71: a third mounting box; 72: an image collector; 73: an imaging focusing mirror; 74: a filter.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 9, a square pipe cutting workstation comprises a cutting assembly 1 and a laser cutting workpiece clamping assembly 2, wherein the cutting assembly comprises a mounting table 3, a mounting table driving mechanism 5 for driving the mounting table to move along a first guide rail 4, a connecting arm 6 arranged on the surface of the mounting table, a connecting arm driving mechanism 7 for driving the connecting arm to move, and a laser cutting device 8 arranged at the end part of the connecting arm, the laser cutting workpiece clamping assembly comprises two moving tables 9, a moving table driving mechanism 10 for driving the moving table to move along a second guide rail 19, and a plurality of workpiece clamping devices 11 positioned between the two moving tables, and the plurality of workpiece clamping devices are distributed along the direction parallel to the first guide rail;
the workpiece clamping device comprises a base 12, a supporting plate 13 arranged above the base, a supporting plate lifting device 14 arranged on the surface of the base and connected with an output shaft and the supporting plate, and clamping plates 15 arranged on the left side and the right side of the surface of the supporting plate;
an opening is formed in one side of the mobile station, a turnover disc 16 is arranged on the inner side face of the mobile station, a positioning groove 17 matched with the square tube is formed in the inner side face of the turnover disc 16, and a turnover disc driving motor 18 for driving the turnover disc to rotate is further arranged on the mobile station.
The pipe cutting workstation drives the laser cutting device arranged at the end part of the connecting arm to process holes on the square pipe arranged on the laser cutting workpiece clamping assembly through parts such as the mounting table, the connecting arm driving mechanism and the like, has high processing automation degree and small pollution and noise, and improves the working environment of operators. When the square pipe or other pipe fitting is in specific work, the square pipe or other pipe fitting is placed on the workpiece clamping device in a travelling crane or manual mode, and at the moment, the square pipe is positioned on the surface of the supporting plate and is transversely positioned by clamping plates on two sides of the square pipe. After the square tube is placed, the movable seats at the two ends of the square tube move towards the end parts of the square tube until the end parts of the square tube pass through the opening on the movable table and enter the positioning groove of the turning disc, so that the longitudinal positioning of the square tube is completed. After the positioning is finished, the movable seats at the two ends are restored to the original positions, the mounting table of the cutting assembly is driven by the mounting table driving mechanism to move to the preset position along the first guide rail, then the connecting arm driving assembly drives the connecting arm to move towards the direction close to the square pipe until the laser cutting device at the end part of the connecting arm moves to the upper part of the square pipe, the laser cutting device is a laser cutting head, the cutting operation on a workpiece is realized by utilizing laser beams, and the cutting process is low in noise and small in scraps. Specifically, the laser cutting device is used for beating laser beams emitted by the laser on the surface of the square pipe, and the laser cutting device can realize two-dimensional movement under the driving of the connecting arm driving assembly and the mounting table driving assembly, so that the punching operation of the pipe fitting is realized. After one side of the square tube is perforated, the connecting arm can restore to the original position, and the movable table moves to the end part of the square tube until the end part of the movable table is positioned in the positioning groove, and then the supporting plate descends by a certain height under the driving of the supporting plate lifting device so as to facilitate the overturning of the square tube. Then the turnplate driving motor drives the turnplate to rotate to the position where the other surface of the square tube faces upwards, then the supporting plate and the mobile station are sequentially restored to the original positions, and the laser cutting device can realize the punching operation of the other surface of the square tube in a similar manner until all the surfaces of the square tube are punched. Compared with the traditional drilling equipment, the square pipe cutting workstation has higher automation degree and less environmental pollution.
Preferably, the surface of the base is provided with a protective box 20, and the pallet lifting device is arranged in the protective box.
The workpiece clamping device is used for clamping the square tube and realizing transverse positioning of the square tube, and as the vertical projection size of the square tube can be increased when the square tube is overturned, the supporting plate lifting device is arranged to drive the supporting plate to descend before the square tube is overturned so as to avoid the square tube.
Preferably, an auxiliary supporting spring 21 is also arranged between the protective box and the supporting plate.
Preferably, the auxiliary supporting spring is a gas spring.
The auxiliary support spring is arranged, so that the auxiliary support of the supporting plate is realized.
Preferably, the pallet lifting device is an air cylinder, an oil cylinder or a linear motor.
Preferably, the surface of the base is provided with a slide bar 22, the top end of which is in sliding fit with the pallet.
Preferably, the number of the clamping plates is two, the bottom ends of the clamping plates are in sliding fit with the supporting plates, screw rods 23 in threaded connection with the clamping plates are further arranged on the supporting plates, and adjusting hand wheels 24 are arranged at the end parts of the screw rods.
The arrangement of the adjusting hand wheel and the screw rod enables an operator to adjust the position of the clamping plate through the screw rod so as to adapt to square pipes with corresponding sizes.
Preferably, the surface of the mounting table is provided with a lifting table 25, and the body of the link arm driving mechanism is provided on the lifting table.
The setting of elevating platform makes the linking arm and locate the laser cutting device of linking arm tip can go up and down under the drive of elevating platform to make it punch the square pipe that has different thickness panel.
Preferably, the mounting table driving mechanism and the moving table driving mechanism each include a driving motor 26, a gear 27 connected to an output shaft of the driving motor, and a rack 28 provided on the ground and engaged with the gear, the driving motor of the mounting table driving mechanism is provided in the mounting table, and the driving motor of the moving table driving mechanism is provided in the moving table.
Preferably, a proximity sensor 29 is also provided on the mounting table.
In the implementation, the mounting table and the moving table can control the moving distance of the mounting table and the moving table through the stepping motor or the rotary encoder, and the arrangement of the proximity sensor enables the mounting table to adjust the moving distance data according to the signals of the proximity sensor, so that the moving precision of the mounting table is improved. Specifically, a plurality of standard components corresponding to the proximity sensors can be arranged on the ground or the base.
The laser cutting device particularly relates to a laser cutting head, which comprises a cutting head body 30 and a nozzle 31 positioned at the front end of the cutting head body, wherein the nozzle comprises a nozzle base body 32, an upper accommodating groove 33 is arranged on the upper surface of the nozzle base body, a lower accommodating groove 34 is arranged on the lower surface of the nozzle base body, a transmission hole 35 which is communicated with the upper accommodating groove and the lower accommodating groove is arranged on the nozzle base body, a connecting cover assembly 36 connected with the nozzle base body is arranged above the upper accommodating groove, a nozzle assembly 37 connected with the nozzle base body is arranged in the lower accommodating groove, a laser output hole 38 which penetrates from the top surface of the nozzle assembly to the bottom surface of the nozzle assembly and is communicated with the transmission hole is arranged in the middle part of the nozzle assembly, an inward inclined spray hole 39 which extends from the side surface of the nozzle assembly to the bottom surface of the nozzle assembly, an outward inclined spray hole 40 which extends from the inner side surface of the nozzle assembly to the bottom surface of the nozzle assembly, a central axis of the inward inclined spray hole is obliquely intersected with the central axis of the laser output hole, a main gas connecting pipe 41 which is communicated with the inner cavity and a gas connecting pipe 42 which is obliquely communicated with the inner cavity are respectively arranged on the outer side surface of the nozzle base body.
The laser cutting device, namely the laser cutting head, is processing equipment for cutting boards and is widely applied to industrial production.
When the existing laser cutting head cuts boards with different thicknesses, an operator needs to replace the laser cutting head with corresponding jet hole sizes according to the thickness of the boards, and simultaneously adjusts the pressure and flow of auxiliary gas input to achieve the best cutting effect, so that the operation is troublesome, and the cooling effect of the laser cutting head is also common when the laser cutting head cuts. In addition, when the existing laser cutting head cuts thicker plates, the air supply pressure of auxiliary air needs to be increased in order to improve the cutting speed, however, when the auxiliary air pressure is too high, a certain shock wave is easily generated due to the change of the distance between the nozzle and the workpiece, meanwhile, the purity of the central auxiliary air is easily influenced by peripheral air in the cutting process, and the cutting effect is further influenced.
This laser cutting device, the setting of interior oblique orifice for operating personnel can be through interior to the mixed gas of oblique orifice input air and oxygen, with the air, the oxygen proportion of adjusting total auxiliary gas, make laser cutting device can cut the panel that has different thickness, and it also has the effect of supplementary cooling simultaneously, thereby has further improved the cutting effect to the panel. In specific implementation, the inward inclined spray hole extends from the side surface to the bottom surface of the spray head assembly, wherein the included angle a between the central axis of the spray head assembly and the central axis of the laser output hole is an acute angle. The arrangement of the outward inclined spray holes reduces the influence of peripheral air on the central auxiliary gas, and further improves the cutting effect. During specific work, laser beams transmitted from the upper part of the nozzle base body pass through the transmission holes and the laser output holes and are output to the surface of a workpiece, auxiliary gas oxygen input from the main gas connecting pipe is input into the laser output holes through the transmission channels in the nozzle base body and the nozzle assembly and is output from the bottom ends of the laser output holes, meanwhile, mixed gas input from the auxiliary gas connecting pipe is input into the inward inclined spray holes and is sprayed out from the bottom ends of the inward inclined spray holes, and as the bottom ends of the inward inclined spray holes are close to one side of the laser output holes, the mixed gas output from the bottom ends of the inward inclined spray holes is mixed with central auxiliary gas sprayed out from the laser output holes, so that total auxiliary gas is formed and the surface of the workpiece is purged, and therefore cooling and auxiliary cutting are realized. Meanwhile, part of mixed gas input into the inward inclined spray holes is sprayed out to a direction far away from the central auxiliary gas through the outward inclined spray holes positioned at the side of the mixed gas to form outward air flow, the outward air flow enables the peripheral gas not to easily influence the purity of the central auxiliary gas, meanwhile, dust and fragments on the periphery also cannot easily enter the inside of the nozzle, in addition, the outward air flow weakens shock waves between the central auxiliary gas and the surface of a workpiece, and therefore the welding efficiency is improved.
Preferably, the spray head assembly comprises a spray head main body 43, an output plate 44 positioned below the spray head main body, and a lower compression ring 45 in threaded connection with the spray head main body, wherein the top end of the spray head main body is positioned in the lower accommodating groove, the top end of the spray head main body is in threaded connection with the spray head base body, the inward inclined spray hole comprises a first inclined air passage 47 extending from the side surface of the spray head main body to the bottom surface of the spray head main body and a second inclined air passage 48 extending from the surface of the output plate to the bottom surface of the output plate, the first inclined air passage is communicated with the second inclined air passage, the outward inclined spray hole extends from the bottom surface of the output plate to the bottom surface of the output plate, the outward inclined spray hole is communicated with the second inclined air passage, the outer side surface of the output plate is a step surface, the lower compression ring is sleeved on the outer side surface of the output plate, an inner flange of the lower compression ring is compressed on the step surface, the top of the lower compression ring is in threaded connection with the spray head main body, and the laser output hole extends from the top surface of the spray head main body to the bottom surface of the spray head main body.
Because the inward inclined spray hole and the outward inclined spray hole are crossed in the spray head assembly, the design is convenient for operators to process the spray head assembly, wherein the inward inclined spray hole consists of a first inclined air passage positioned in the spray head main body and a second inclined air passage positioned in the output plate, and the outward inclined spray hole is completely positioned in the output plate, and an opening at the top end of the outward inclined spray hole and the second inclined air passage are positioned at the same position, so that the processing of the outward inclined spray hole is convenient.
Preferably, the upper surface of the output plate is provided with an annular air passage 49, and the outward inclined spray hole and the top opening of the second inclined air passage are both positioned in the annular air passage.
Preferably, sealing rings 50 are provided between the head body and the nozzle base, and between the head body and the output plate.
Preferably, the connecting cover assembly comprises a connecting cover body 51 and an upper compression ring 52 in threaded connection with the nozzle base body, an inner flange of the upper compression ring is pressed on a step surface on the outer side of the connecting cover body, a mounting cavity is arranged in the connecting cover body, a penetrating hole 53 communicated with the mounting cavity is formed in the top surface of the connecting cover, a first lens group 54 is arranged in the mounting cavity, a locking ring 55 in threaded connection with the connecting cover body is arranged below the first lens group, a protective glass ring 56 connected with the nozzle base body through bolts is arranged below the locking ring, a protective glass 57 positioned in a transmission hole is arranged below the protective glass, and sealing rings are arranged on the upper side and the lower side of the protective glass.
Preferably, the cutting head body comprises a zooming assembly and a light source assembly, the zooming assembly comprises a first shell 57, a mounting frame driving device 58 and a lens assembly, the mounting frame driving device 58 and the lens assembly are connected with the first shell, the lens assembly comprises a mounting frame 59, a plurality of lenses 60 with different curvatures, the mounting frame is connected with an output shaft of the mounting frame, the lenses are distributed along the circumference of the circumference taking the mounting frame main shaft as the center, through holes 61 corresponding to the lenses in the first shell are formed in the upper surface and the lower surface of the first shell, the light source assembly comprises a second shell 62, an inner cavity of the second shell is communicated with the inner cavity of the first shell, the bottom end of the second shell is arranged at the through hole of the upper surface of the first shell, a first semi-transparent mirror 63 is arranged in the second shell, a first mounting box 64, an optical fiber connector 66 is arranged in the first mounting box, and the top end of the connecting cover assembly is arranged at the through hole of the lower surface of the first shell.
The zoom component is arranged, so that the zoom function of the laser cutting device is realized, and the laser cutting device can be more effectively adapted to plates with different thicknesses. Because the thickness of the plate is different, the height of the laser cutting device needs to be adjusted to adapt to the cutting hole during cutting, when the thickness of the plate is thicker, the content of the nozzle extending into the cutting hole is easily affected by splashing, and therefore the cutting of thicker plates can be realized by changing the focal length. The existing laser cutting device adopting a zooming system has the advantages that the focal length can be continuously adjusted, so that the structure is complex, the zooming component adopts a plurality of lenses with fixed curvatures, so that the requirements of cutting plates with different thicknesses can be basically met, the structure is greatly simplified, and the cost is low. During specific work, laser input from the optical fiber connector is output to the first half-reflecting mirror after being straightened through the first straightening mirror, is downwards transmitted through reflection of the first half-reflecting mirror and is input to the nozzle through the lens positioned below the first half-reflecting mirror, and finally is output to the surface of a workpiece through the nozzle.
The preferred driving means is a stepper motor.
Preferably, a second mounting box 67 with an inner cavity communicated with the inner cavity of the second shell is further arranged on the second shell, a light source 68 and a second collimating mirror 69 are arranged in the second mounting box, a second half-mirror 70 positioned above the first half-mirror is arranged in the second shell, a third mounting box 71 with an inner cavity communicated with the inner cavity of the second shell is arranged at the top of the second shell, and an image collector 72, an imaging focusing mirror 73 positioned below the image collector and a filter 74 positioned below the imaging focusing mirror are arranged in the third mounting box.
The light source is used for illuminating the workpiece, so that the image collector can collect image information of the workpiece, and cutting operation is facilitated. During specific work, light rays emitted by the light source are transmitted to the second half-reflecting mirror through the second collimating mirror and reflected to the first half-reflecting mirror through the second half-reflecting mirror, finally, the light rays are transmitted to the surface of the workpiece through the lens and the nozzle in the first shell, and the light rays reflected by the surface of the workpiece are imaged on the image collector through the nozzle, the lens, the first half-reflecting mirror, the second half-reflecting mirror, the filter and the imaging focusing mirror in sequence, so that imaging of the workpiece is realized.
Preferably, the image collector is a CMOS or CCD image sensor, and the light source is an LED light source.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description.
Furthermore, the foregoing is only a preferred embodiment of the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. Meanwhile, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and the description is merely for clarity, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the examples may be combined appropriately to form other embodiments that can be understood by those skilled in the art.
Claims (5)
1. A square pipe cutting workstation, its characterized in that: the laser cutting workpiece clamping assembly comprises two moving tables, a moving table driving mechanism for driving the moving tables to move along a second guide rail and a plurality of workpiece clamping devices positioned between the two moving tables, wherein the workpiece clamping devices are distributed along the direction parallel to the first guide rail;
the workpiece clamping device comprises a base, a supporting plate arranged above the base, a supporting plate lifting device arranged on the surface of the base and connected with an output shaft and the supporting plate, and clamping plates arranged on the left side and the right side of the surface of the supporting plate;
an opening is formed in one side of the mobile station, a turnover disc is arranged on the inner side surface of the mobile station, a positioning groove matched with the square tube is formed in the inner side surface of the turnover disc, and a turnover disc driving motor for driving the turnover disc to rotate is further arranged on the mobile station;
the mounting table driving mechanism and the moving table driving mechanism comprise driving motors, gears connected with the output shafts of the driving motors and racks arranged on the ground and meshed with the gears, the driving motors of the mounting table driving mechanism are arranged in the mounting table, and the driving motors of the moving table driving mechanism are arranged in the moving table;
the laser cutting device comprises a cutting head body and a nozzle positioned at the front end of the cutting head body, wherein the nozzle comprises a nozzle base body, an upper accommodating groove is formed in the upper surface of the nozzle base body, a lower accommodating groove is formed in the lower surface of the nozzle base body, a transmission hole which is communicated with the upper accommodating groove and the lower accommodating groove is formed in the nozzle base body, a connecting cover assembly connected with the nozzle base body is arranged above the upper accommodating groove, a nozzle assembly connected with the nozzle base body is arranged in the lower accommodating groove, a laser output hole which penetrates through the top surface of the nozzle assembly to the bottom surface of the nozzle assembly and is communicated with the transmission hole is formed in the middle of the nozzle assembly, an inward inclined spray hole which extends from the side surface of the nozzle assembly to the bottom surface of the nozzle assembly and an outward inclined spray hole which extends from the inner side surface of the inward inclined spray hole to the bottom surface of the nozzle assembly are obliquely intersected with the central axis of the laser output hole, a main gas connecting pipe, an auxiliary gas connecting pipe and an inner cavity which are communicated with the laser output hole are respectively arranged on the outer side surface of the nozzle base body.
2. The square tube cutting station of claim 1, wherein: the surface of base is provided with the protection box, layer board elevating gear sets up in the protection box.
3. The square tube cutting station of claim 1, wherein: the supporting plate lifting device is an air cylinder, an oil cylinder or a linear motor.
4. The square tube cutting station of claim 1, wherein: the surface of mount table is provided with the elevating platform, link arm actuating mechanism's organism sets up on the elevating platform.
5. The square tube cutting station of claim 1, wherein: and a proximity sensor is also arranged on the mounting table.
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| CN201910756629.1A CN110328455B (en) | 2019-08-16 | 2019-08-16 | Square tube cutting workstation |
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| CN201910756629.1A CN110328455B (en) | 2019-08-16 | 2019-08-16 | Square tube cutting workstation |
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| CN110328455A CN110328455A (en) | 2019-10-15 |
| CN110328455B true CN110328455B (en) | 2024-01-09 |
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| CN113245695A (en) * | 2021-06-04 | 2021-08-13 | 何灵君 | Laser cutting head fixed focus device |
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| CN210334801U (en) * | 2019-08-16 | 2020-04-17 | 江苏国电新能源装备有限公司 | Square tube cutting workstation |
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| CA2064513A1 (en) * | 1991-04-01 | 1992-10-02 | Hiroyuki Okuyama | Laser output unit |
| EP0985484A2 (en) * | 1998-09-09 | 2000-03-15 | Tanaka Engineering Works, Ltd. | Laser piercing method, laser processing nozzle, and laser cutting apparatus |
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| CN110328455A (en) | 2019-10-15 |
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