A device for solving round hole burrs in laser cutting of automobile plates

Abstract

The present invention discloses a device for solving the burr problem of circular holes in laser cutting of automobile plates, which relates to the technical field of laser cutting and comprises: a processing clamping unit, which comprises a frame; a laser processing unit, which is arranged on the surface of a movable plate, and comprises a laser rod, the bottom of which is fixedly connected with a cutting head, and the surface of which is rotatably sleeved with a sealing column cavity. The rotary control member is started, so that the rotary control member drives the sealing column cavity to rotate on the outside of the laser rod through a synchronous belt and a synchronous wheel, and then the cutting head is combined with the moving cutting when the sealing column cavity rotates, so that when the cutting head transfers the cutting circle to form a circular hole, the laser rod drives the rotating sealing column cavity clamped on its surface to move, so that the inclined shovel block on the inner side of the sealing column cavity can remove the molten metal sealed by the sealing column cavity during the rotating movement, thereby reducing the volume of the molten metal and the formation of burrs.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a device for solving burrs of round holes in laser cutting of automobile plates. Background Art

[0002] Laser cutting achieves cutting by focusing a high-energy laser beam onto the surface of a material, causing the material to melt, vaporize or ablate rapidly in a local area. Commonly used laser types include carbon dioxide lasers (CO2 lasers), fiber lasers and solid-state lasers.

[0003] Chinese patent CN104259671B discloses a method for hairless stimulating light cutting of amorphous alloys, which includes the following steps: under the protection of a cooling inert atmosphere, a pulsed laser or a continuous wave laser is used to melt and cut the cutting part of the amorphous alloy to form a cutting surface; during laser cutting, the cooling inert atmosphere is blown toward the cutting part of the amorphous alloy in the same direction as the laser emission direction, and an air suction device is set and turned on at the other side of the cutting part relative to the blowing of the cooling inert atmosphere; the airflow formed by the cooling inert atmosphere and the air suction device blows off the molten material at the cutting part together, and cools to form a cutting surface; and the TTT diagram is used as a reference to complete the cutting of the cutting part of the amorphous alloy without a crystallization reaction. The hairless stimulating light cutting method of amorphous alloys makes the cutting surface of the amorphous alloy cut completely free of burrs and dust adsorption, and the quality of the cutting surface is very good.

[0004] Chinese patent application CN115194475A discloses a deburring device for laser cutting, comprising a base frame and two fixed plates respectively installed on both sides of the base frame, a conveyor belt for conveying plate parts is arranged between the fixed plates, a trapezoidal bin is arranged on the top of the two fixed plates, a straight groove consistent with the conveying direction of the conveyor belt is opened on the side of the trapezoidal bin facing the conveyor belt, a horizontal plate 1 and a horizontal plate 2 perpendicular to the conveying direction of the conveyor belt are arranged above the conveyor belt, and a plurality of racks are evenly distributed along the straight line of the horizontal plate 1 and the horizontal plate 2, a plurality of laser cutters and expansion grinding mechanisms are respectively arranged below the horizontal plate 1 and the horizontal plate 2, the laser cutters and the expansion grinding mechanisms are connected by a moving mechanism meshing with the racks, and the above invention develops an economical automatic deburring device, which can reduce the production cost of the enterprise and improve the processing efficiency.

[0005] The above patents and prior art have the following problems:

[0006] During the laser cutting process, the material is instantly heated by the laser to a molten or vaporized state. The molten material will bulge and sputter toward the cutting edge and cool in the air to form burrs, thus affecting the quality of the cutting and forming of the automotive sheet metal. Summary of the invention

[0007] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A device for solving round hole burrs in laser cutting of automobile plates, comprising:

[0010] A processing clamping unit, the processing clamping unit comprises a frame body, a horizontal frame plate is movably provided on the surface of the frame body, a back plate frame is movably provided at the front end of the horizontal frame plate, and a movable plate is movably provided at the front end of the back plate frame;

[0011] A laser processing unit is arranged on the surface of the movable plate, and includes a laser rod, a cutting head is fixedly connected to the bottom of the laser rod, a sealed column cavity is rotatably sleeved on the surface of the laser rod, a bevel shovel block is arranged at the opening at the bottom of the sealed column cavity, a grinding plate is arranged around the outer side of the sealed column cavity, and a scraper is movably arranged on the surface of the bevel shovel block.

[0012] As a preferred solution of the device for solving the burr of round holes in the laser cutting of automobile plates of the present invention, the laser processing unit comprises a connecting plate, the connecting plate is fixedly connected to the surface of the movable plate, and a laser rod and a rotating control member are installed at the bottom of the connecting plate;

[0013] The laser rod is rotatably connected with the annular groove at the top of the sealed column cavity through a bearing fixed on its surface. A synchronous wheel is sleeved on the surface of the sealed column cavity. The pulley at the bottom of the rotating control member and the synchronous wheel are connected through a synchronous belt transmission.

[0014] As a preferred solution for the device for solving the burr problem of circular holes in the laser cutting of automobile plates of the present invention, the bottom surface of the grinding plate and the bottom surface of the bevel shovel block are coplanar, and the lower side of the inclined surface of the bevel shovel block is arranged in the rotation direction of the sealing column cavity;

[0015] The bottom surface of the grinding plate is provided with abrasive particles for grinding.

[0016] As a preferred solution for the device for solving the burr problem of circular holes in the laser cutting of automobile plates of the present invention, the high side of the inclined surface of the inclined shovel block is fixedly connected with a material storage cavity, a guide plate is obliquely arranged at the connection between the inclined shovel block and the material storage cavity, and the low side of the guide plate is arranged inside the material storage cavity, the inclined shovel block and the guide plate and the side of the material storage cavity opposite to the inner wall of the sealing column cavity are fixedly installed with a baffle, and the upper and lower sides of the material storage cavity are both open structures;

[0017] A movable plate is movably provided at the bottom end of the material storage chamber, and a movable rod is installed on the bottom of the movable plate extending downward. The movable rod is fixedly connected to the universal head after passing through the middle plate. The middle plate is fixedly connected to the side of the inclined shovel block, and a spring is provided between the middle plate and the universal head, and the spring is sleeved on the surface of the movable rod.

[0018] As a preferred solution for the device for solving the burr of circular holes in the laser cutting of automobile plates of the present invention, the scraper is movably arranged between the sealing column cavity and the baffle, the top of the scraper is rotatably connected with a swing rod, the top of the swing rod is rotatably passed through a plug rod, the plug rod is movably connected by two connecting rods through a universal joint, and the connecting rod on one side of the plug rod is fixedly connected with a movable sleeve;

[0019] The movable sleeve is slidably mounted on the surface of the laser rod, and the connecting rod on the other side of the insertion rod is rotated through the swing rod and movably inserted into the inside of the return rail. The inner sliding block at the front end of the connecting rod on the other side of the insertion rod is slidably connected to the annular cavity inside the return rail, and the return rail is opened on the surface of the side block, and the side block is fixedly connected to the inside of the sealed column cavity.

[0020] As a preferred solution of the device for solving the burr problem of circular holes in the laser cutting of automobile plates of the present invention, a filter ring plate is arranged on the top of the sealed column cavity, and an adsorption layer is arranged inside the filter ring plate;

[0021] A top disc is arranged on the top of the movable sleeve, and the movable sleeve is slidably connected with the surface of the filter ring plate through the top disc;

[0022] A synchronization rod is fixedly connected to the top of the top disc, and the synchronization rod passes through the sealing column cavity and is movably connected to the sleeve plate. The sleeve plate is slidably sleeved on the surface of the laser rod, and a lifting control component is fixedly connected to the top surface of the sealing column cavity, and the output shaft of the lifting control component is movably connected to the sleeve plate.

[0023] As a preferred solution of the device for solving the burr of circular holes in the laser cutting of automobile plates of the present invention, wherein: the top surface of the grinding plate is provided with a plurality of sliding rods along its circumferential direction, and the surface of the sliding rod is slidably provided with a shielding ring sleeve, and the shielding ring sleeve is slidably provided on the outer surface of the filter ring plate;

[0024] A plurality of positioning holes are vertically distributed on the surface of the filter ring plate, and the shielding ring sleeve is threadedly connected with the positioning holes through bolts on the surface of the alignment plate.

[0025] As a preferred solution for the device for solving the burr problem of circular holes in the laser cutting of automobile plates of the present invention, a side frame plate is provided extending inwardly from the inner side of the frame body, a clamping control member is provided symmetrically on the top of the side frame plate, the side of the clamping control member is fixedly connected to the inner side of the frame body, and a lower pressure plate is fixedly installed on the surface of the output shaft of the clamping control member;

[0026] The surfaces of the two length sides of the frame are provided with a slide rail and a tooth plate. The slide rail is slidably connected to the connecting warehouse through a slider. The interior of the connecting warehouse is fixedly connected with a moving control component. The output shaft of the moving control component passes through the connecting warehouse and is meshed with a gear and a tooth plate.

[0027] As a preferred solution for the device for solving the burr problem of circular holes in the laser cutting of automobile plates of the present invention, wherein: a cross frame plate is fixedly connected to the inner side of the connecting bin, a tooth plate 2 and a slide rail 2 are arranged in parallel on the surface of the cross frame plate, and the back plate frame is slidably connected via a slide block 2 and a slide rail 2;

[0028] A second moving control component is installed on the back side of the back plate frame, and the second moving control component is meshed and connected with the second toothed plate through the gear of its output shaft.

[0029] As a preferred solution of the device for solving the burr of round holes in the laser cutting of automobile plates of the present invention, wherein: the top of the back plate frame is equipped with an upper and lower control member, and the output shaft of the upper and lower control member is fixedly connected to the top of the movable plate;

[0030] The surface of the back frame is vertically fixedly connected with a slide rail three, and the movable plate is slidably arranged on the surface of the slide rail three.

[0031] Beneficial effects of the present invention:

[0032] 1. During the cutting process of the cutting head, the sealing column cavity will seal the outside of the cutting head, thereby reducing the splash of molten metal during laser cutting, and further reducing the burrs formed by the splashing metal adhering to the surface of the plate. Of course, in order to increase the service life of the sealing column cavity barrier, a ceramic coating can be attached to the inside of the sealing column cavity, and the cutting head can be sealed inside the sealing column cavity through the sealing column cavity to reduce the contact between the molten metal generated by cutting and accumulated on the surface of the plate and the outside, thereby reducing the cooling rate of the molten metal.

[0033] 2. During the cutting process of the cutting head, the rotary control part is synchronously started, so that the rotary control part drives the sealing column cavity to rotate on the outside of the laser rod through the synchronous belt and the synchronous wheel, and then the sealing column cavity rotates in combination with the moving cutting of the cutting head, so that when the cutting head transfers the cutting circle to form a circular hole, the laser rod drives the sealing column cavity in a rotating state clamped on its surface to move, so that the inclined shovel block on the inside of the sealing column cavity can remove the molten metal sealed by the sealing column cavity during the rotation, thereby reducing the volume of the molten metal and the formation of burrs. After the inclined shovel block rotates and scoops, the grinding plate on its outer side will contact the position on the surface of the plate where the molten metal is scooped, so that during the rotation of the sealing column cavity, the grinding plate rotates and grinds the cutting position of the metal plate and the scooping position of the inclined shovel block, further reducing the generation of cutting burrs and improving the surface cleanliness of the plate cutting.

[0034] 3. Make the lifting control part push the sleeve plate to drive the synchronous rod to move up and down, so that the synchronous rod drives the top disc and the movable sleeve to move up and down synchronously on the surface of the laser rod during the up and down reciprocating motion. When the movable sleeve is lifted, it will drive the insertion rod to move upward along the lower straight rail of the return rail and finally terminate at the connection between the top of the semicircular rail on the high side of the return rail and the upper straight rail. During the movement of the insertion rod on the bottom straight rail of the return rail, it will drive the scraper at its bottom to scrape the top of the inclined shovel block through the transmission of the swing rod, so that the metal shoveled on the top surface of the inclined shovel block is scraped by the scraper, and finally enters the interior of the movable plate through the guide plate for temporary storage.

[0035] 4. When the movable sleeve descends, it will drive the insertion rod to slide downward along the straight rail on the upper side of the return rail, and finally descend to the connection between the lower semicircular rail and the lower straight rail. At this time, through the spacing between the two straight rails, when the scraper falls back along the upper straight rail through the swing rod and the insertion rod at its top, there is a gap between the bottom of the scraper and the top of the bevel shovel block, thereby reducing the scraper moving to the bottom end of the bevel of the bevel shovel block and accidentally pushing the metal object on the top of the bevel shovel block to fall back. It should be noted that when the bevel shovel block scoops the molten metal produced by the cutting head, the scraper is located at the high end of the bevel of the bevel shovel block, thereby reducing the influence of the scraper on the scooping of the bevel shovel block, and during the movement of the insertion rod inside the return rail, the inner slider synchronously engages and moves inside the annular cavity, reducing the deviation of the swing rod and the insertion rod inserted into the return rail.

[0036] 5. During the reciprocating motion of the movable sleeve and the top disc, the top disc will scrape the surface of the filter ring plate to reduce the blockage of the filter holes on the surface of the filter ring plate by the particle smoke generated by cutting.

[0037] 6. By moving the shielding ring sleeve on the surface of the filter ring plate and after determining the position, the alignment plate is fixed to the inside of the corresponding positioning hole by bolts, so that the shielding area of ​​the shielding ring sleeve on the filter ring plate can be adjusted.

[0038] 7. After the cutting head cuts the preset hole, it can be lifted up to make the bottom opening of the sealed column cavity suspended in the air, so that the air inside the sealed column cavity can contact and exchange heat with the external air.

[0039] 8. During the lifting process of the sealed column cavity, the universal head and movable rod that were originally squeezed by the grinding plate and the plate surface will drop under the elastic recovery of the spring, so that the movable plate on the top of the movable rod will move out from the interior of the storage cavity, so that the opening at the bottom of the storage cavity will be opened, and the metal objects stored in the storage cavity will be discharged, thereby improving the reuse rate of the storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for describing the embodiment, wherein:

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0043] Figure 3 It is a schematic diagram of the connection structure between the moving control member 1 and the tooth plate 1 of the present invention;

[0044] Figure 4 This is a schematic diagram of the structural connection of one side of the slide rail of the present invention;

[0045] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B;

[0046] Figure 6 This is a schematic diagram of the laser processing unit structure connection of the present invention;

[0047] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the middle C part;

[0048] Figure 8 This is a schematic diagram of the connection of the bottom structure of the grinding plate of the present invention;

[0049] Fig. 9 This is a schematic diagram of the internal structure connection of the sealed column cavity of the present invention;

[0050] Fig.10 for Fig. 9 A schematic diagram of the enlarged structure of the D part;

[0051] Fig.11 for Fig. 9 A schematic diagram of the enlarged structure of part E in the middle;

[0052] Fig.12 It is a schematic diagram showing the connection between the inclined shovel block and the material storage chamber from the top perspective of the present invention;

[0053] Fig.13 It is a schematic diagram of the connection between the inclined shovel block and the scraper structure of the present invention;

[0054] Fig.14 It is a schematic diagram of the internal structure connection of the side block of the present invention.

[0055] In the figure:

[0056] 1. Processing clamping unit; 101. Frame; 1011. Side frame plate; 1012. Clamping control part; 10121. Lower pressure plate; 1013. Slide rail 1; 1014. Tooth plate 1; 102. Connecting bin; 1021. Moving control part 1; 1022. Slider 1; 103. Horizontal frame; 1031. Tooth plate 2; 1032. Slide rail 2; 104. Back plate frame; 1041. Moving control part 2; 1042. Up and down control parts; 1043. Slide rail 3; 1044. Movable plate; 1045. Slider 2;

[0057] 2. Laser processing unit; 201. Connecting plate; 2011. Rotation control member; 2011. Rotation control member; 2012. Laser rod; 20121. Cutting head; 202. Sealed column cavity; 2021. Synchronous wheel; 20211. Lifting control member; 20212. Sleeve plate; 20213. Synchronous rod; 2022. Synchronous belt; 2023. Grinding plate; 2024. Closing plate; 2025. Blocking ring; 20251. Sliding rod; 20252. Filter ring plate; 20253. Positioning hole; 20 254, alignment plate; 2026, annular groove; 203, inclined shovel block; 2031, scraper; 2032, material storage chamber; 20321, movable plate; 20322, movable rod; 20323, universal head; 20324, spring; 20325, guide plate; 2033, baffle; 2034, middle plate; 204, movable sleeve; 2041, top disc; 2042, plug rod; 20421, inner slider; 2043, swing rod; 205, side block; 2051, return rail; 20511, annular chamber. DETAILED DESCRIPTION Embodiment 1

[0058] like Figure 1-14 As shown, a device for solving round hole burr problem in laser cutting of automobile plate comprises:

[0059] A processing clamping unit 1, the processing clamping unit 1 comprises a frame 101, a horizontal frame plate 103 is movably provided on the surface of the frame 101, a back plate frame 104 is movably provided at the front end of the horizontal frame plate 103, and a movable plate 1044 is movably provided at the front end of the back plate frame 104;

[0060] A laser processing unit 2 is provided on the surface of the movable plate 1044, and includes a laser rod 2012. A cutting head 20121 is fixedly connected to the bottom of the laser rod 2012. A sealed column cavity 202 is rotatably sleeved on the surface of the laser rod 2012. A bevel shovel block 203 is provided at the opening at the bottom of the sealed column cavity 202. A grinding plate 2023 is provided around the outer side of the sealed column cavity 202. A scraper 2031 is movably provided on the surface of the bevel shovel block 203. The cutting head 20121 is preferably a CO2 laser or a fiber laser, a solid laser, a focal length adjustment device, and a gas nozzle.

[0061] like Figure 1-5 As shown, a side frame plate 1011 is provided inwardly extending from the inner side of the frame body 101, and a clamping control member 1012 is symmetrically provided on the top of the side frame plate 1011. The side of the clamping control member 1012 is fixedly connected to the inner side of the frame body 101, and a lower pressing plate 10121 is fixedly installed on the surface of the output shaft of the clamping control member 1012;

[0062] The surfaces of the two length sides of the frame 101 are provided with a slide rail 1013 and a tooth plate 1014. The slide rail 1013 is slidably connected to the connecting chamber 102 through a slider 1022. The interior of the connecting chamber 102 is fixedly connected with a moving control member 1021. The output shaft of the moving control member 1021 passes through the connecting chamber 102 and is meshed with a gear and a tooth plate 1014.

[0063] The inner side of the connection compartment 102 is fixedly connected with a cross frame 103, and the surface of the cross frame 103 is parallelly provided with a second tooth plate 1031 and a second slide rail 1032, and the back plate frame 104 is slidably connected with the second slide rail 1032 via a second slider 1045;

[0064] A second moving control member 1041 is installed on the back of the back frame 104 , and the second moving control member 1041 is meshedly connected with the second gear plate 1031 through the gear of its output shaft.

[0065] An up-and-down control member 1042 is installed on the top of the back plate frame 104, and the output shaft of the up-and-down control member 1042 is fixedly connected to the top of the movable plate 1044;

[0066] The surface of the back frame 104 is vertically fixedly connected with a slide rail 3 1043 , and the movable plate 1044 is slidably arranged on the surface of the slide rail 3 1043 .

[0067] Operation process:

[0068] By placing the automobile plate to be processed on the surface of the side frame plate 1011, the clamping control member 1012 drives the lower pressing plate 10121 to move downward, so that the automobile plate is clamped between the lower pressing plate 10121 and the side frame plate 1011, thereby reducing accidental movement of the plate during cutting;

[0069] After the clamping is completed, the mobile control component 1021 is started to make the gear at the front end of the output shaft of the mobile control component 1021 rotate on the surface of the tooth plate 1014, driving the connecting chamber 102 and the cross frame 103 to move forward and backward, and the mobile control component 2 1041 is started to make the gear at the front end of the output shaft of the mobile control component 2 1041 rotate on the surface of the tooth plate 2 1031, driving the back plate frame 104 to move left and right. After the back plate frame 104 is driven by the mobile control component 1021 and the mobile control component 2 1041 to the position where the plate needs to be processed, the upper and lower control components are turned on the upper and lower control components. The component 1042 is started so that its output shaft pushes the movable plate 1044 to slide downward on the surface of the slide rail three 1043, thereby causing the sealed column cavity 202 at the front end of the movable plate 1044 to move downward, causing the grinding plate 2023 to press against the surface of the plate, and then the cutting head 20121 is started so that the cutting head 20121, driven by the moving control component 1 1021 and the moving control component 2 1041, draws a circle on the surface of the plate through a segmented cutting method or an interpolation algorithm, thereby causing the cutting head 20121 to cut a circular hole on the surface of the plate, thereby completing the processing requirements. Embodiment 2

[0070] like Figure 6-9 As shown, the laser processing unit 2 includes a connecting plate 201, the connecting plate 201 is fixedly connected to the surface of the movable plate 1044, and a laser rod 2012 and a rotation control member 2011 are installed at the bottom of the connecting plate 201;

[0071] The laser rod 2012 is rotatably connected to the annular groove 2026 at the top of the sealed column cavity 202 through a bearing fixed on its surface. A synchronous wheel 2021 is sleeved on the surface of the sealed column cavity 202. The pulley at the bottom of the rotating control member 2011 and the synchronous wheel 2021 are connected through a synchronous belt 2022.

[0072] like Figure 6-9 As shown, the bottom surface of the grinding plate 2023 and the bottom surface of the bevel shovel block 203 are coplanar, and the lower side of the inclined surface of the bevel shovel block 203 is arranged in the rotation direction of the sealed column cavity 202;

[0073] The bottom surface of the grinding plate 2023 is provided with abrasive particles for grinding, and the bottom surface of the universal head 20323 initially exceeds the bottom surface of the grinding plate 2023 .

[0074] like Figure 6-12As shown, the high side of the inclined surface of the inclined shovel block 203 is fixedly connected with a material storage chamber 2032, and the connection between the inclined shovel block 203 and the material storage chamber 2032 is obliquely provided with an inclined guide plate 20325, and the lower side of the inclined guide plate 20325 is arranged inside the material storage chamber 2032, and the inclined shovel block 203, the inclined guide plate 20325 and the side of the material storage chamber 2032 opposite to the inner wall of the sealing column chamber 202 are all fixedly installed with a baffle 2033, and the upper and lower surfaces of the material storage chamber 2032 are both open structures;

[0075] A movable plate 20321 is movably provided at the bottom end of the storage chamber 2032, and a movable rod 20322 is installed on the bottom of the movable plate 20321 extending downward. The movable rod 20322 is movably passed through the middle plate 2034 and is fixedly connected to the universal head 20323. The middle plate 2034 is fixedly connected to the side of the inclined shovel block 203, and a spring 20324 is provided between the middle plate 2034 and the universal head 20323. The spring 20324 is sleeved on the surface of the movable rod 20322, and the universal head 20323 is preferably a universal ball head.

[0076] like Figure 6-13 As shown, the scraper 2031 is movably arranged between the sealed column cavity 202 and the baffle 2033, the top of the scraper 2031 is rotatably connected to a swing rod 2043, the top of the swing rod 2043 is rotatably passed through an insertion rod 2042, the insertion rod 2042 is movably connected by two connecting rods through a universal joint, and the connecting rod on one side of the insertion rod 2042 is fixedly connected to a movable sleeve 204;

[0077] The movable sleeve 204 is slidably sleeved on the surface of the laser rod 2012, and the connecting rod on the other side of the insertion rod 2042 rotates through the swing rod 2043 and is movably inserted into the inner part of the return rail 2051. The inner slider 20421 at the front end of the connecting rod on the other side of the insertion rod 2042 is slidably connected with the ring cavity 20511 inside the return rail 2051. The return rail 2051 is opened on the surface of the side block 205, and the side block 205 is fixedly connected to the inside of the sealed column cavity 202. The shape of the ring cavity 20511 is the same as that of the return rail 2051.

[0078] The circular rail 2051 is composed of two vertically parallel straight rails and a semicircular rail connecting the upper and lower ends of the two straight rails. The straight rails are parallel to the top surface of the inclined shovel block 203.

[0079] like Figure 6-9 As shown, a filter ring plate 20252 is disposed on the top of the sealed column cavity 202, and an adsorption layer is disposed inside the filter ring plate 20252, and the adsorption layer is preferably composed of activated carbon;

[0080] A top disc 2041 is arranged on the top of the movable sleeve 204, and the movable sleeve 204 is slidably connected with the surface of the top disc 2041 and the filter ring plate 20252. The top disc 2041 is slidably sleeved on the surface of the laser rod 2012. A plurality of rectangular through holes are arranged on the surface of the middle part of the top disc 2041 to reduce the change of airflow caused by the up and down movement of the top disc 2041, and the surface of the filter ring plate 20252 in contact with the outer side of the top disc 2041 is arranged inside the sealed column cavity 202.

[0081] The top of the top disc 2041 is fixedly connected to a synchronization rod 20213, and the synchronization rod 20213 passes through the sealed column cavity 202 and is movably connected to the sleeve plate 20212. The sleeve plate 20212 is slidably mounted on the surface of the laser rod 2012. The top surface of the sealed column cavity 202 is fixedly connected to a lifting control component 20211, and the output shaft of the lifting control component 20211 is movably connected to the sleeve plate 20212.

[0082] like Figure 6-14 As shown, the top surface of the grinding plate 2023 is provided with a plurality of sliding rods 20251 along its circumferential direction, and the surface of the sliding rod 20251 is slidably provided with a shielding ring sleeve 2025, and the shielding ring sleeve 2025 is slidably provided on the outer surface of the filter ring plate 20252;

[0083] The surface of the filter ring plate 20252 is vertically provided with a plurality of positioning holes 20253, and the shielding ring sleeve 2025 is threadedly connected to the positioning holes 20253 through bolts on the surface of the alignment plate 20254, so as to adjust the area covered by the shielding ring sleeve 2025 on the surface of the filter ring plate 20252;

[0084] A closing plate 2024 is disposed outside the sealing column cavity 202 , which can divide the sealing column cavity 202 into two parts, which are snap-fitted onto the bearing on the surface of the laser rod 2012 , and the two parts are fixed by bolts between the closing plates 2024 .

[0085] It should be noted that:

[0086] The clamping control member 1012, the up-down control member 1042 and the lifting control member 20211 are preferably cylinders or electric telescopic rods, and are controlled by PLC and powered by external energy;

[0087] The movable control element 1021, the movable control element 2041 and the rotation control element 2011 are preferably servo motors, and are controlled by PLC and powered by external energy.

[0088] The rest of the structure is the same as that of the first embodiment.

[0089] Operation process:

[0090] During the cutting process of the cutting head 20121, the sealing column cavity 202 will seal the outer side of the cutting head 20121, thereby reducing the splashing of molten metal during the laser cutting process, and further reducing the burrs formed by the splashing metal adhering to the surface of the plate. Of course, in order to increase the service life of the sealing column cavity 202 barrier, a ceramic coating can be attached to the inside of the sealing column cavity 202, and the cutting head 20121 is sealed inside the sealing column cavity 202 through the sealing column cavity 202, thereby reducing the contact between the molten metal generated by cutting and accumulated on the surface of the plate and the outside, and reducing the cooling rate of the molten metal;

[0091] In the process of cutting by the cutting head 20121, the rotating control member 2011 is synchronously started, so that the rotating control member 2011 drives the sealing column cavity 202 to rotate on the outside of the laser rod 2012 through the synchronous belt 2022 and the synchronous wheel 2021, and then when the sealing column cavity 202 rotates, combined with the moving cutting of the cutting head 20121, when the cutting head 20121 transfers the cutting to draw a circle to form a circular hole, the rotating sealing column cavity 202 clamped on its surface is driven to move through the laser rod 2012, so that the inclined shovel block 203 on the inner side of the sealing column cavity 202 During the rotation, the molten metal sealed by the sealed column cavity 202 can be scraped off, thereby reducing the volume of the molten metal and the formation of burrs. After the bevel shovel block 203 rotates and scrapes, the grinding plate 2023 on the outside will contact the position on the plate surface where the molten metal is scraped off. As the sealed column cavity 202 rotates, the grinding plate 2023 rotates and grinds the cutting position of the metal plate and the scraping position of the bevel shovel block 203, further reducing the generation of cutting burrs and improving the surface cleanliness of the plate cutting position.

[0092] In order to reduce the accumulation of molten metal scooped up by the inclined shovel block 203 on its surface, the lifting control member 20211 can be started intermittently, so that the lifting control member 20211 pushes the sleeve plate 20212 to drive the synchronous rod 20213 to move up and down, so that the synchronous rod 20213 drives the top disc 2041 and the movable sleeve 204 to move up and down synchronously on the surface of the laser rod 2012 during the up and down reciprocating motion, and the movable sleeve 204 drives the insertion rod 2042 to move along the return track 2051 when the movable sleeve 204 is lifted. The lower straight rail moves upward and finally ends at the connection between the top of the high side semicircular rail of the return rail 2051 and the upper straight rail. During the movement of the bottom straight rail of the return rail 2051, the insertion rod 2042 will drive the scraper 2031 at its bottom to scrape the top of the inclined shovel block 203 through the transmission of the swing rod 2043, so that the metal shoveled from the top surface of the inclined shovel block 203 is scraped by the scraper 2031 and finally enters the interior of the moving plate 20321 through the inclined guide plate 20325 for temporary storage.

[0093] When the movable sleeve 204 descends, it drives the insertion rod 2042 to slide downward along the straight track on the upper side of the return rail 2051, and finally descends to the connection between the lower semicircular rail and the lower straight rail. At this time, due to the gap between the two straight rails, when the scraper 2031 falls back along the upper straight rail through the swing rod 2043 and the insertion rod 2042 at its top, there is a gap between the bottom of the scraper 2031 and the top of the inclined shovel block 203, thereby reducing the scraper 2031 moving to the bottom of the inclined surface of the inclined shovel block 203 and accidentally pushing the inclined shovel block 203 The metal object on the top falls back. It should be noted that when the inclined shovel block 203 shovels the molten metal produced by the cutting head 20121, the scraper 2031 is located at the high end of the inclined surface of the inclined shovel block 203, thereby reducing the impact of the scraper 2031 on the shoveling of the inclined shovel block 203. During the movement of the insertion rod 2042 inside the return rail 2051, the inner slider 20421 synchronously engages and moves inside the ring cavity 20511, thereby reducing the deviation of the swing rod 2043 and the insertion rod 2042 inserted into the return rail 2051.

[0094] During the reciprocating motion of the movable sleeve 204 and the top disc 2041, the top disc 2041 will scrape the surface of the filter ring plate 20252 to reduce the clogging of the filter holes on the surface of the filter ring plate 20252 by the particle smoke generated by cutting;

[0095] Of course, in order to control the degree of temperature drop inside the sealed column cavity 202, the shielding ring sleeve 2025 can be moved on the surface of the filter ring plate 20252, and after the position is determined, the alignment plate 20254 is fixed to the inside of the corresponding positioning hole 20253 by bolts, so that the shielding area of ​​the shielding ring sleeve 2025 on the filter ring plate 20252 can be adjusted;

[0096] Of course, in order to prevent the temperature inside the sealed column cavity 202 from being too high, the cutting head 20121 can be lifted after cutting the preset hole, so that the bottom opening of the sealed column cavity 202 is suspended, so that the air inside the sealed column cavity 202 can be in contact with the external air for heat exchange;

[0097] During the lifting process of the sealed column cavity 202, the universal head 20323 and the movable rod 20322, which were originally squeezed by the grinding plate 2023 and the plate surface, will drop due to the elastic recovery of the spring 20324, so that the movable plate 20321 on the top of the movable rod 20322 will be moved out from the interior of the storage cavity 2032, so that the opening at the bottom of the storage cavity 2032 will be opened, and the metal objects stored in the storage cavity 2032 will be discharged, thereby improving the reuse rate of the storage cavity 2032.

[0098] Of course, for the purpose of processing effect, the processing clamping unit 1 and the laser processing unit 2 can be set in a mirror image at the bottom of the plate, so that the upper and lower parts of the tube are provided with synchronously moving laser processing units 2, and the upper and lower parts of the opening position of the plate are provided with sealed column cavities 202, thereby further improving the temperature control effect.

Claims

1. A device for solving round hole burr problems in laser cutting of automobile plates, characterized in that: include: A processing clamping unit (1), the processing clamping unit (1) comprising a frame (101), a surface of the frame (101) being movably provided with a cross frame (103), a front end of the cross frame (103) being movably provided with a back frame (104), and a front end of the back frame (104) being movably provided with a movable plate (1044); A laser processing unit (2), the laser processing unit (2) being arranged on the surface of the movable plate (1044), the laser processing unit (2) comprising a laser rod (2012), the bottom of the laser rod (2012) being fixedly connected to a cutting head (20121), the surface of the laser rod (2012) being rotatably sleeved with a sealed column cavity (202), an opening at the bottom of the sealed column cavity (202) being provided with a bevel shovel block (203), a grinding plate (2023) being provided around the outer side of the sealed column cavity (202), and a scraper (2031) being movably provided on the surface of the bevel shovel block (203); The laser processing unit (2) comprises a connecting plate (201), wherein the connecting plate (201) is fixedly connected to the surface of the movable plate (1044), and a laser rod (2012) and a rotation control member (2011) are installed at the bottom of the connecting plate (201); The laser rod (2012) is rotatably connected to the annular groove (2026) at the top of the sealed column cavity (202) via a bearing fixed on its surface; a synchronous wheel (2021) is sleeved on the surface of the sealed column cavity (202); and a pulley at the bottom of the rotation control member (211) and the synchronous wheel (2021) are connected in transmission via a synchronous belt (222); The bottom surface of the grinding plate (2023) and the bottom surface of the bevel shovel block (203) are coplanar, and the lower side of the inclined surface of the bevel shovel block (203) is arranged in the rotation direction of the sealed column cavity (202); Abrasive particles for grinding are arranged on the bottom surface of the grinding plate (2023); The high side of the inclined surface of the inclined shovel block (203) is fixedly connected to a material storage cavity (2032); a guide plate (20325) is obliquely arranged at the connection between the inclined shovel block (203) and the material storage cavity (2032), and the low side of the guide plate (20325) is arranged inside the material storage cavity (2032); a baffle (2033) is fixedly installed on the inclined shovel block (203), the guide plate (20325) and the side of the material storage cavity (2032) opposite to the inner wall of the sealing column cavity (202); and the upper and lower surfaces of the material storage cavity (2032) are both open structures; A movable plate (20321) is movably provided at the bottom end of the material storage chamber (2032), and a movable rod (20322) is installed on the bottom of the movable plate (20321) extending downward, and the movable rod (20322) is fixedly connected to the universal head (20323) after movably passing through the middle plate (2034), and the middle plate (2034) is fixedly connected to the side of the inclined shovel block (203), and a spring (20324) is provided between the middle plate (2034) and the universal head (20323), and the spring (20324) is sleeved on the surface of the movable rod (20322).

2. The device for solving round hole burr problem in laser cutting of automobile plate according to claim 1, characterized in that: The scraper (2031) is movably arranged between the sealing column cavity (202) and the baffle (2033); the top of the scraper (2031) is rotatably connected to a swing rod (2043); the top of the swing rod (2043) is rotatably passed through an insertion rod (2042); the insertion rod (2042) is movably connected by two connecting rods via a universal joint; the connecting rod on one side of the insertion rod (2042) is fixedly connected to a movable sleeve (204); The movable sleeve (204) is slidably sleeved on the surface of the laser rod (2012); the connecting rod on the other side of the insertion rod (2042) rotates through the swing rod (2043) and is movably inserted into the inside of the circular rail (2051); the inner slider (20421) at the front end of the connecting rod on the other side of the insertion rod (2042) and the ring cavity (20511) inside the circular rail (2051) are slidably connected; the circular rail (2051) is opened on the surface of the side block (205), and the side block (205) is fixedly connected to the inside of the sealed column cavity (202).

3. The device for solving round hole burr problem in laser cutting of automobile plate according to claim 2, characterized in that: A filter ring plate (20252) is provided on the top of the sealed column cavity (202), and an adsorption layer is provided inside the filter ring plate (20252); A top disc (2041) is provided on the top of the movable sleeve (204), and the movable sleeve (204) is slidably connected to the surface of the top disc (2041) and the filter ring plate (20252); The top of the top disc (2041) is fixedly connected to a synchronization rod (20213), the synchronization rod (20213) passes through the sealed column cavity (202) and is movably connected to the sleeve plate (20212), the sleeve plate (20212) is slidably sleeved on the surface of the laser rod (2012), the top surface of the sealed column cavity (202) is fixedly connected to a lifting control member (20211), and the output shaft of the lifting control member (20211) is movably connected to the sleeve plate (20212).

4. The device for solving round hole burr problem in laser cutting of automobile plate according to claim 3, characterized in that: The top surface of the grinding plate (2023) is provided with a plurality of sliding rods (20251) along its circumferential direction, the surface of the sliding rod (20251) is slidably provided with a shielding ring sleeve (2025), and the shielding ring sleeve (2025) is slidably provided on the outer surface of the filtering ring plate (20252); A plurality of positioning holes (20253) are vertically distributed on the surface of the filter ring plate (20252), and the shielding ring sleeve (2025) is threadedly connected to the positioning holes (20253) via bolts on the surface of the alignment plate (20254).

5. The device for solving round hole burr problem in laser cutting of automobile plate according to any one of claims 1 to 4, characterized in that: A side frame plate (1011) is provided inwardly extending from the inner side of the frame body (101), a clamping control member (1012) is symmetrically provided on the top of the side frame plate (1011), a side portion of the clamping control member (1012) is fixedly connected to the inner side of the frame body (101), and a lower pressing plate (10121) is fixedly installed on the surface of the output shaft of the clamping control member (1012); The surfaces of the two length sides of the frame (101) are both provided with a slide rail (1013) and a tooth plate (1014); the slide rail (1013) is slidably connected to the connecting bin (102) via a slider (1022); a moving control member (1021) is fixedly connected inside the connecting bin (102); an output shaft of the moving control member (1021) passes through the connecting bin (102) and is meshedly connected to the tooth plate (1014) via a gear.

6. The device for solving round hole burr problem in laser cutting of automobile plate according to claim 5, characterized in that: The inner side of the connection bin (102) is fixedly connected with a cross frame plate (103), the surface of the cross frame plate (103) is provided with a second tooth plate (1031) and a second slide rail (1032) in parallel, and the back plate frame (104) is slidably connected with the second slide rail (1032) via a second slide block (1045); A second moving control component (1041) is installed on the back of the back plate frame (104), and the second moving control component (1041) is meshedly connected with the second toothed plate (1031) through the gear of its output shaft.

7. The device for solving round hole burr problem in laser cutting of automobile plate according to claim 5, characterized in that: An up-and-down control member (1042) is installed on the top of the back plate frame (104), and an output shaft of the up-and-down control member (1042) is fixedly connected to the top of the movable plate (1044); The surface of the backplane frame (104) is vertically fixedly connected to a slide rail three (1043), and the movable plate (1044) is slidably arranged on the surface of the slide rail three (1043).

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