CN116038111B

CN116038111B - Laser cutting deslagging mechanism and laser cutting equipment

Info

Publication number: CN116038111B
Application number: CN202310278376.8A
Authority: CN
Inventors: 李胜
Original assignee: Suzhou Champion Technology Co ltd
Current assignee: Suzhou Champion Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-20
Anticipated expiration: 2043-03-21
Also published as: CN116038111A

Abstract

The utility model relates to the field of laser cutting, in particular to a laser cutting deslagging mechanism and laser cutting equipment, wherein a workpiece hole for positioning a workpiece is formed in a workbench, the workpiece is cylindrical, one end of the workpiece is provided with an end face, the other end of the workpiece is provided with an opening, and a circular hole is formed in the central axis of the end face. The front end of the rotating shaft of the deslagging assembly is in interference fit with the round hole; the slag receiving hopper is arranged on the rotating shaft and comprises a hopper arm which extends upwards in an outward expansion mode, the top end of the hopper arm is contacted with the inner wall of the workpiece, and a slag receiving cavity is formed between the two hopper arms; the bottom of the slag receiving hopper is provided with a hopper plane attached to the workbench to prevent the slag receiving hopper from rotating; the first rotary driving piece drives the rotating shaft to drive the workpiece to synchronously rotate, so that the arm scrapes cutting burrs on the inner wall of the workpiece; when the workpiece is fed or discharged, the telescopic driving piece drives the slag receiving hopper to extend out of the workpiece to avoid the workpiece. The slag receiving hopper can automatically scrape burrs and collect slag scraps, so that the appearance quality of a workpiece is smooth and free of foreign matters, and the assembly qualification rate of the workpiece is improved.

Description

Laser cutting deslagging mechanism and laser cutting equipment

Technical Field

The utility model belongs to the field of laser cutting, and particularly relates to a laser cutting slag removing mechanism and laser cutting equipment.

Background

Laser cutting, which is one of the thermal cutting methods, irradiates a workpiece to be cut with a laser beam of high power density, heats the workpiece material to a vaporization temperature, evaporates to form holes, continuously forms slits of a very narrow width along with the movement of the laser beam, and simultaneously blows out molten materials by means of high-speed air flow, thereby cutting the workpiece. The cutting of the holes in the cylindrical workpiece can also be accomplished by using a laser cutting machine, and the workpiece needs to be positioned on a workbench for cutting during processing.

Molten slag scraps are inevitably generated in the laser cutting process, and are blown into the cylindrical interior of the workpiece by high-speed air flow during cutting, so that slag burrs are formed on the inner wall of the workpiece after cooling, and the quality of a product is seriously influenced.

In addition, burrs may be formed in the cut hole due to the limitation of laser parameters during cutting, and the burrs may adversely affect the assembly between the workpiece and other parts, and are determined to be defective.

For example, the patent of publication number CN217290884U discloses a slag blocking rod mechanism for laser cutting equipment, which comprises a base and a plate, wherein the top of the base is provided with a laser cutting machine, the top of the base is welded with a fixed cylinder, the inside of the fixed cylinder is welded with a scraper blade, the top of the scraper blade is provided with a plurality of strip-shaped through holes, a placing plate is arranged in the strip-shaped through holes, the top of the scraper blade is provided with cooling liquid, the top of the placing plate is welded with a plurality of protruding blocks, the protruding blocks are in a pointed cone shape, the bottom of the placing plate is welded with a connecting strip, and the bottom of the connecting strip is provided with a hydraulic cylinder. The cutting residues can fall into the cooling liquid and be cooled in time, and meanwhile, the placing plate can be pulled up and down, so that the placing plate moves up and down in the strip-shaped through holes of the scraping plate, the residues on the placing plate can be scraped clean, and the placing of the plates is prevented from being influenced by the residues.

However, the slag blocking rod mechanism cannot realize slag blocking and slag removal work for cutting and processing the cylindrical workpiece.

Disclosure of Invention

Aiming at the prior art, the utility model provides a laser cutting slag removing mechanism which is used for eliminating adverse effects of slag scraps and burrs generated by the prior laser cutting holes on the appearance quality and the assembly quality of cylindrical workpieces and improving the qualification rate of products.

A laser cutting slag removal mechanism comprising:

a workbench, wherein a workpiece hole is formed in the workbench, and the lower side of the workpiece is positioned in the workpiece hole; the workpiece is cylindrical, one end of the workpiece is provided with an end face, the other end of the workpiece is provided with an opening, and a circular hole is formed in the central axis of the end face;

the slagging-off subassembly, install in on the workstation, the slagging-off subassembly includes:

the front end of the rotating shaft is in interference fit with the round hole when inserted into the round hole;

the slag receiving hopper is arranged on the rotating shaft and comprises a hopper arm which extends upwards in an outward expansion mode, the top end of the hopper arm is in contact with the inner wall of the workpiece, a slag receiving cavity is formed between the two hopper arms, and a cutting hole of the workpiece is positioned above the slag receiving cavity; the bottom of the slag receiving hopper is provided with a hopper plane attached to the workbench and used for preventing the slag receiving hopper from rotating along with the rotating shaft;

the first rotary driving part is in driving connection with the rotating shaft, and when the slag receiving hopper is positioned in the workpiece, the first rotary driving part drives the rotating shaft to drive the workpiece to synchronously rotate, so that the bucket arm scrapes cutting burrs on the inner wall of the workpiece;

and the telescopic driving piece is in driving connection with the first rotary driving piece, and drives the slag receiving hopper to extend out of the workpiece when the workpiece is fed or discharged.

Preferably, a second rotary driving piece is arranged below the workbench, a cam is arranged at the output end of the second rotary driving piece, the cam comprises a near shaft end close to the output shaft and a far shaft end far away from the output shaft, and a magnet block is arranged at the near shaft end;

when a workpiece is fed, the magnet block applies a pulling force to the bottom of the workpiece and normalizes the workpiece;

when the rotating shaft is inserted into the round hole of the workpiece, the magnet block continuously attracts the workpiece to prevent the workpiece from shaking, so that the rotating shaft can be reliably inserted;

when the workpiece removes slag, the rotating workpiece enables a cutting hole on the workpiece to intermittently pass through the magnet block, and the magnet block sucks scrap iron nearby the cutting hole;

when the workpiece is fed, the second rotary driving part drives the cam to rotate, and the far shaft end ejects the finished workpiece out of the workpiece hole.

Further, the utility model also comprises a feeding slideway and a discharging slideway, wherein the feeding slideway and the discharging slideway are respectively connected to the left side and the right side of the workbench, one end of the feeding slideway, which is close to the workbench, is inclined downwards, and one end of the discharging slideway, which is close to the workbench, is inclined upwards;

and workpiece positioning grooves are formed in the feeding slide way and the discharging slide way, the workpiece positioning grooves and the workpiece holes are located in the same plane, and during feeding, workpieces placed in the feeding slide way automatically roll into the workpiece holes.

Preferably, when the far shaft end ejects the workpiece finished product out of the workpiece hole, the workpiece at the lowest side in the feeding slideway rolls towards the workbench and pushes the workpiece finished product into the discharging slideway.

Preferably, a material blocking cylinder is further installed outside the material feeding slide way, a piston rod of the material blocking cylinder extends into the workpiece positioning groove and is provided with a material blocking plate, the material blocking plate blocks the workpiece at the lowest side, a space is reserved between the material blocking plate and the lower end of the material feeding slide way, and when the material blocking plate leaves the workpiece positioning groove, the workpiece at the lowest side rolls downwards for a distance.

Further, a slag scraping assembly is arranged below the workbench and used for removing scrap iron on the magnet block, and the slag scraping assembly comprises a supporting column, a guide rod, an elastic piece and a slag scraping block;

the support column is fixed below the workbench, and a guide rod is arranged on the support column along the horizontal direction;

the other end of the guide rod is inserted into the slag scraping block in a sliding manner;

the elastic piece is sleeved on the guide rod, and two ends of the elastic piece are respectively abutted against the supporting column and the slag scraping block, so that the slag scraping block is flexibly abutted against the cam.

Preferably, one side of the scraping block, which is close to the cam, is a wedge-shaped surface, a scraping edge is formed at the top of the wedge-shaped surface, and the scraping edge abuts against the cam.

Preferably, a sealing ring is arranged at the end part of the rotating shaft, and the sealing ring is extruded into the round hole of the workpiece.

Preferably, limiting blocks are arranged on the rotating shaft at the front side and the rear side of the slag receiving hopper and used for enabling the slag receiving hopper to synchronously move back and forth along with the rotating shaft; the bottom of connect the sediment fill installs the guide rail, be provided with the guide way on the workstation, the guide way with the guide rail adaptation, connect the sediment fill along the guide way back-and-forth movement.

The utility model further aims to provide laser cutting equipment which comprises a triaxial module, a laser cutting head and the laser cutting slag removing mechanism, wherein the laser cutting head is arranged on the triaxial module, the triaxial module drives the laser cutting head to move to the position right above a workpiece in a workpiece hole, and a cutting hole is formed in the top of the workpiece.

The beneficial effects of the utility model are as follows:

the laser cutting deslagging mechanism is characterized in that a deslagging assembly is arranged on a workbench and used for removing cutting burrs in a cylindrical workpiece, and a rotating shaft of the deslagging assembly is in interference fit with a round hole of the workpiece to drive the workpiece to rotate; the rotating shaft is provided with a slag receiving hopper which is positioned right below the cutting hole of the workpiece and can receive slag scraps falling from the cutting hole during cutting; and connect the bucket arm of sediment fill to expand outward and extend, until the inner wall contact with the work piece, connect the bottom of sediment fill to be equipped with the fill plane of laminating workstation, therefore when the pivot drives the work piece rotatory, connect the sediment fill can not follow the pivot rotatory, the burr that produces because of the cutting on the work piece inner wall is scraped into and connects the sediment intracavity by the bucket arm of connecing the sediment fill of relative static, has got rid of the burr of cutting hole department, and prevent that the sediment bits from dropping and condensing in the barrel of work piece and polluting the work piece, guaranteed that the outward appearance quality of work piece is smooth and has not had the foreign matter, improved the assembly qualification rate of work piece.

The cam is arranged below the workbench and driven to rotate by the second rotary driving part, and the magnet block is arranged at the proximal shaft end of the cam. Through the rotary matching of the magnet block and the cam, the actions of workpiece righting, reliable insertion of the rotating shaft, auxiliary slag suction, workpiece blanking ejection and the like are realized, and the automatic and continuous operation of each working procedure in the whole laser cutting is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of the finished workpiece of the present utility model;

FIG. 2 is a partial cross-sectional view of the slag removal assembly of the present utility model during slag receiving and slag removal operations;

FIG. 3 is a partial cross-sectional view of the deslagging assembly of the present utility model shown disengaged from a workpiece;

FIG. 4 is a schematic illustration of the cam of the present utility model in a state in which the workpiece is ejected from the workpiece aperture;

FIG. 5 is a schematic cross-sectional view of the structure at A-A in FIG. 2;

FIG. 6 is a schematic front view of the slag scraping assembly of the present utility model in an initial state;

FIG. 7 is a schematic front view of the present utility model with the cam scraped by the scraper assembly;

FIG. 8 is a schematic front view of the present utility model showing the cam ejecting a workpiece out of a workpiece hole after the cam has been scraped by the scraper assembly;

FIG. 9 is a schematic front view of the cam of the present utility model during reverse rotation to an initial state;

FIG. 10 is a schematic front view of the present utility model prior to blanking of the finished workpiece;

FIG. 11 is a schematic front view of the present utility model when blanking a workpiece;

FIG. 12 is a schematic front view of a finished workpiece of the present utility model being pushed into a feed channel by a workpiece in a feed slide;

FIG. 13 is a schematic view of the structure of the dam plate of the present utility model.

The reference numerals are:

10. a workpiece; 11. an end face; 12. an opening; 13. an end edge; 14. a round hole; 15. cutting the hole;

20. a work table; 21. a workpiece hole; 22. a workbench body; 23. a base;

30. a deslagging assembly; 31. a rotating shaft; 311. a limiting block; 32. a slag receiving hopper; 321. a bucket arm; 322. a slag receiving end wall; 323. a slag receiving cavity; 324. a bucket plane; 325. a guide rail; 33. a first rotary driving member; 34. a telescopic driving member; 35. a seal ring;

40. a second rotary driving piece; 41. a cam; 411. a proximal shaft end; 412. a distal shaft end; 413. a magnet block;

50. a feeding slideway; 51. a workpiece positioning groove; 53. a striker plate; 531. a plate body; 532. inserting blocks; 54. an avoidance groove; 55. an upper crack; 56. a lower nip;

60. a blanking slideway;

70. a slag scraping assembly; 71. a support column; 72. a guide rod; 73. an elastic member; 74. scraping a slag block; 741. a guide hole; 742. a wedge surface; 743. scraping edge;

80. a laser cutting head.

Detailed Description

Example 1

As shown in fig. 1 to 9, a laser cutting slag removing mechanism is used for removing slag generated by cutting when a cutting hole 15 is laser-machined on the top of a workpiece. Referring to fig. 1 to 4, a workpiece 10 has a cylindrical shape with an end face 11 at one end and an opening 12 at the other end, and an end edge 13 turned outwards is provided at one end of the opening 12. A round hole 14 is arranged on the central axis of the end face 11 of the workpiece.

The present deslagging mechanism includes a table and deslagging assembly 30.

The work table 20 is provided with a work hole 21, the lower side of the work 10 is positioned in the work hole 21, and the middle and upper sides extend out of the work hole 21.

Referring to fig. 2 to 4, a deslagging assembly 30 is mounted on the workbench 20, and the deslagging assembly 30 comprises a rotating shaft 31, a deslagging hopper 32, a first rotary driving member 33 and a telescopic driving member 34.

The front end of the rotating shaft 31 can be inserted into the round hole 14 and is in interference fit with the round hole 14; specifically, the front end of the rotating shaft 31 is fixedly provided with a sealing ring 35, and the sealing ring 35 is tightly in interference fit with the round hole 14 after being pressed into the round hole 14, so that when the rotating shaft 31 rotates, the workpiece 10 is driven to synchronously rotate.

The slag receiving hopper 32 is mounted on the rotating shaft 31, and the slag receiving hopper 32 is in contact connection with the rotating shaft 31, so that the rotating shaft 31 can rotate relative to the slag receiving hopper 32.

Referring to fig. 2 and 5, the slag receiving hopper 32 includes a flared and upwardly extending arm 321, the top end of the arm 321 contacts the inner wall of the workpiece 10, and when the workpiece rotates, the arm 321 scrapes burrs formed by cutting on the inner wall of the workpiece.

The front side and the rear side of the slag receiving hopper 32 are also provided with slag receiving end walls 322, the two slag receiving end walls 322 and the two hopper arms 321 are enclosed to form a slag receiving cavity 323, the cutting hole 15 of the workpiece is positioned above the slag receiving cavity 323, and slag scraps generated by cutting and scraped burrs fall into the slag receiving cavity 323. The bottom of the slag receiving hopper 32 is provided with a hopper plane 324 attached to the workbench for preventing the slag receiving hopper 32 from rotating along with the rotating shaft 31.

Limiting blocks 311 are arranged on the rotating shaft 31 on the front side and the rear side of the slag receiving hopper 32, and the limiting blocks 311 position the slag receiving hopper 32 on the rotating shaft 31 so that the slag receiving hopper 32 moves back and forth along with the rotating shaft 31 synchronously. The bottom of the slag receiving bucket 32 is provided with a guide rail 325, a guide groove (not shown) is provided on the table 20, the guide rail 325 is matched with the guide rail 325, the guide rail 325 is installed in the guide groove, and the slag receiving bucket 32 can move back and forth along the guide groove, so that the movement of the slag receiving bucket 32 can be guided more accurately.

The table 20 includes a table body 22 and a base 23 mounted on the table body 22, and a first rotary driving member 33 and a first telescopic driving member 34 are fixedly mounted on the base 23.

The first rotary driving member 33 may be a servo motor, and an output shaft of the first rotary driving member 33 is in driving connection with the rotating shaft 31, and when the slag receiving hopper 32 is located inside the workpiece, the first rotary driving member 33 drives the rotating shaft 31 to drive the workpiece 10 to synchronously rotate, so that the bucket arm 321 scrapes burrs on the inner wall of the workpiece 10.

The telescopic driving piece 34 can be an air cylinder, a piston rod of the telescopic driving piece 34 is in driving connection with the first rotary driving piece 33, and when a workpiece is fed or discharged, the telescopic driving piece 34 drives the slag receiving hopper 32 to extend out of the workpiece, so that the workpiece in feeding and discharging is avoided.

The second rotary driving member 40 is fixedly installed below the workbench 20, a rotary cylinder is selected as the second rotary driving member 40, a cam 41 is installed at the output end of the second rotary driving member 40, and the second rotary driving member 40 can drive the cam 41 to rotate 180 degrees in a forward/reverse reciprocating mode.

Referring to fig. 6, the cam 41 includes a proximal shaft end 411 near the rotation axis thereof and a distal shaft end 412 far from the rotation axis thereof, and a magnet block 413 is embedded in the proximal shaft end 411.

Referring to fig. 6 and 10, when the workpiece is fed, the proximal end 411 is close to the bottom of the workpiece, and the magnet block 413 applies a certain amount of tension to the bottom of the workpiece, so that the workpiece is stably positioned in the workpiece hole 21 in an upright posture, and is matched with the workpiece hole to correct the workpiece, thereby preventing the workpiece from being skewed.

When the rotating shaft 31 needs to be inserted into the round hole 14 of the workpiece, the magnet block 413 continuously attracts the workpiece, so that the workpiece is prevented from swinging up and down when the sealing ring 35 of the rotating shaft 31 acts on the round hole 14 of the workpiece, and the inserting operation of the rotating shaft 31 is reliably completed. The attraction force of the magnet 413 to the workpiece is smaller than the interference fit friction force between the rotating shaft 31 and the workpiece, so that the workpiece can rotate along with the rotating shaft 31.

When the laser cutting head 80 processes the cutting hole 15 of the workpiece, the slag generated by cutting falls freely into the slag receiving hopper 32.

Referring to fig. 2 and 5, when the workpiece needs to be deslagged, the first rotary driving member 33 drives the rotary shaft 31 to rotate for several weeks, so as to drive the workpiece 10 to rotate, and the cutting hole 15 on the workpiece intermittently passes through the magnet block 413, and the magnet block 413 sucks scrap iron near the cutting hole 15 (e.g. on the outer surface of the cutting hole 15, in the cutting hole, etc.), so as to maintain the appearance cleanliness of the workpiece.

Referring to fig. 4, 8 and 11, when the workpiece is blanked, the second rotary driving member 40 drives the cam 41 to rotate, so that the distal end 412 of the cam faces upwards, and the finished workpiece is ejected out of the workpiece hole 21.

Example 2

The embodiment realizes automatic feeding and automatic discharging on the basis of the embodiment 1.

Specifically, referring to fig. 11 to 13, the embodiment further includes a loading chute 50 and a discharging chute 60, the loading chute 50 and the discharging chute 60 are respectively connected to the left and right sides of the workbench 20, and one end of the loading chute 50 near the workbench 20 is inclined downward, and one end of the discharging chute 60 near the workbench 20 is inclined upward.

The workpiece positioning grooves 51 are arranged in the feeding slide way 50 and the discharging slide way 60, and workpieces are vertically placed in the workpiece positioning grooves 51. Both workpiece positioning grooves 51 are aligned with the workpiece hole 21, i.e. they are all in the same plane, so that during loading, the workpiece can smoothly roll into the workpiece hole 21 along the workpiece positioning groove of the loading chute 50; during blanking, the workpiece smoothly rolls into the workpiece positioning groove of the blanking slideway 60 from the workpiece hole 21.

The outside of the feeding slide way 50 is also provided with a material blocking cylinder (not shown), a piston rod of the material blocking cylinder extends into a workpiece positioning groove 51 of the feeding slide way 50, a material blocking plate 53 is arranged on the piston rod, and a side wall of the feeding slide way 50 is provided with a avoiding groove 54 for avoiding the material blocking plate 53.

When the dam cylinder extends the dam plate 53 into the loading chute 50, the dam plate 53 temporarily blocks the lowermost workpiece. The baffle plate 53 has a section interval with the lower extreme of material loading slide 50, when the baffle cylinder backward resets baffle plate 53, when the work piece constant head tank 51 of drive material loading slide is left to baffle plate 53, the work piece of downside rolls a section distance downwards to roll to the workstation, will potential energy to kinetic energy, simultaneously the far axle end 412 of cam 41 is ejecting work piece finished product outside work piece hole 21, consequently utilize the kinetic energy of downside work piece, push the work piece finished product that is ejecting into in the unloading slide 60, the downside work piece is automatic falls into work piece hole 21 this moment, thereby realized automatic feeding and unloading.

Further, referring to fig. 13, in order that the striker plate 53 can accurately and reliably block the sliding workpiece during the dynamic rolling process of the workpiece, the striker plate 53 of this embodiment includes a plate body 531 and insert blocks 532 respectively fixed to the upper and lower sides of the plate body 531, the plate body 531 is fixedly mounted on the piston rod of the material blocking cylinder, the two insert blocks 532 are respectively inserted into the upper and lower slots 55 and 56 between two adjacent workpieces, and the positions of the upper and lower slots 55 and 56 are moved along with the workpiece; the insert 532 is triangular or triangular-like, and the cross-section of the insert 532 is much smaller than the area of the upper 55/lower 56 slots, so that the insert 532 can be smoothly inserted into the upper 55 and lower 56 slots, blocking workpieces downstream of the insert 532.

Other structures of this embodiment are the same as those of embodiment 1.

Example 3

On the basis of embodiment 2, a slag scraping assembly 70 is installed below the workbench 20 and is used for timely removing scrap iron on the magnet block 413 of the cam, so that continuous and stable attraction of the magnet block 413 to workpieces and slag scraps is ensured.

Referring to fig. 6 to 9, the slag scraping assembly 70 includes a supporting column 71, a guide rod 72, an elastic member 73, and a slag scraping block 74.

Support column 71 is fixedly mounted below table 20, and guide rod 72 is mounted on support column 71 in the horizontal direction. The inside of the scraper block 74 is provided with a guide hole 741 matching with the guide rod 72, and the other end of the guide rod 72 is inserted into the guide hole 741 and can slide left and right along the guide hole 741.

The elastic member 73 is sleeved on the guide rod 72, and two ends of the elastic member 73 are respectively abutted against the supporting column 71 and the scraper block 74, so that the scraper block 74 is flexibly abutted against the cam 41. The elastic member 73 is preferably a compression spring.

The side of the scraper block 74 near the cam 41 is a wedge-shaped surface 742, a scraper 743 is formed at the top of the wedge-shaped surface 742, the scraper 743 always contacts the cam 41 under the thrust of the elastic member 73, and when the cam 41 rotates, the scraper 743 removes the slag on the magnet block 413.

Other structures of this embodiment are the same as those of embodiment 2.

Example 4

The present embodiment provides a laser cutting apparatus, which includes a triaxial module (not shown), a laser cutting head 80, and the laser cutting slag removing mechanism in the above embodiment 3, the laser cutting head 80 is mounted on the triaxial module, and the triaxial module drives the laser cutting head 80 to move in a three-dimensional space, and a cutting hole 15 is machined on the top of a workpiece.

The working process of the embodiment is as follows:

a plurality of workpieces are vertically placed in the feeding slide way 50, the material blocking cylinder drives the material blocking plate 53 to extend out, a second workpiece is blocked in the feeding slide way 50, and the workpiece at the lowest side rolls towards the workbench 20 until falling into the workpiece hole 21;

the magnet block 413 of the cam 41 attracts the workpiece and then returns to the workpiece;

the telescopic driving piece 34 sends the slag receiving hopper 32 into the cylinder of the workpiece, the rotating shaft 31 is inserted into the round hole 14 of the workpiece, and the sealing ring 35 of the telescopic driving piece is in interference fit with the round hole 14;

the triaxial module drives the laser cutting head 80 to move above the workpiece, each cutting hole 15 is sequentially processed, slag scraps generated during cutting fall into the slag receiving cavity 323 after passing through the cutting hole 15, the height Wen Zhaxie is prevented from being attached to the inner wall of the workpiece, and slag nubs are formed after solidification;

after the cutting hole 15 is machined, the first rotary driving part 33 drives the rotary shaft 31 to rotate, the rotary shaft 31 drives the workpiece to rotate for a plurality of weeks, burrs generated by cutting on the inner wall of the workpiece are scraped into the slag receiving cavity 323 by the bucket arm 321 of the slag receiving bucket 32, so that the surface of the cutting hole 15 is smooth and flat, and the machining quality is improved; slag scraps near the cutting holes on the outer wall of the workpiece are adsorbed by the magnet blocks 413 of the cam, so that the cleanliness of the outer part of the workpiece is improved;

the second rotary driving piece 40 drives the cam 41 to rotate 180 degrees anticlockwise, so that the far shaft end 412 faces upwards, and the workpiece finished product is ejected out of the workpiece hole 21; meanwhile, the material blocking cylinder drives the material blocking plate 53 to retreat, a second workpiece is positioned at the lowest side of the material loading slideway 50 at the moment, the workpiece automatically rolls into the workpiece hole 21, and the workpiece finished product is pushed into the material unloading sliding, so that the workpiece finished product is automatically unloaded; the material blocking cylinder extends out of the material blocking plate 53 to block the next workpiece in the material loading slideway 50;

repeating the above actions, and cutting and processing the second workpiece.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A laser cutting slag removal mechanism, comprising:

the telescopic driving piece is in driving connection with the first rotary driving piece, and drives the slag receiving hopper to extend out of the workpiece when the workpiece is fed or discharged;

a second rotary driving piece is arranged below the workbench, a cam is arranged at the output end of the second rotary driving piece, the cam comprises a near shaft end close to the output shaft and a far shaft end far away from the output shaft, and a magnet block is arranged at the near shaft end;

when a workpiece is fed, the proximal shaft end is close to the bottom of the workpiece, and the magnet block applies a pulling force to the bottom of the workpiece and normalizes the workpiece;

2. The laser cutting slag removal mechanism of claim 1, further comprising a loading chute and a unloading chute, wherein the loading chute and the unloading chute are respectively connected to the left side and the right side of the workbench, and one end of the loading chute, which is close to the workbench, is inclined downwards, and one end of the unloading chute, which is close to the workbench, is inclined upwards;

workpiece positioning grooves are formed in the feeding slide way and the discharging slide way, the workpiece positioning grooves and the workpiece holes are located in the same plane, and during feeding, workpieces placed in the feeding slide way automatically roll into the workpiece holes;

when the far shaft end ejects a workpiece finished product out of the workpiece hole, the workpiece at the lowest side in the feeding slideway rolls towards the workbench and pushes the workpiece finished product into the discharging slideway.

3. The laser cutting slag removal mechanism of claim 2, wherein a blocking cylinder is further mounted on the outer portion of the feeding slideway, a piston rod of the blocking cylinder extends into the workpiece positioning groove and is provided with a blocking plate, the blocking plate blocks a workpiece at the lowest side, a distance is reserved between the blocking plate and the lower end of the feeding slideway, and when the blocking plate leaves the workpiece positioning groove, the workpiece at the lowest side rolls downwards for a distance.

4. The laser cutting slag removing mechanism according to claim 3, wherein the material blocking plate comprises a plate body and insertion blocks respectively fixed on the upper side and the lower side of the plate body, and the plate body is fixedly arranged on a piston rod of the material blocking cylinder;

when the material is blocked, two insert blocks are respectively inserted into an upper clamping gap and a lower clamping gap between two adjacent workpieces, the insert blocks are triangular, and the cross section of each insert block is smaller than the area of the lower clamping gap.

5. The laser cutting slag removal mechanism of claim 1, wherein,

a slag scraping assembly is arranged below the workbench and used for removing scrap iron on the magnet block, and the slag scraping assembly comprises a support column, a guide rod, an elastic piece and a slag scraping block;

6. The laser cutting slag removal mechanism of claim 5, wherein the side of the slag runner adjacent to the cam is a wedge-shaped surface, the top of the wedge-shaped surface being formed with a scraping edge, the scraping edge abutting the cam.

7. The laser cutting slag removal mechanism of claim 1, wherein a sealing ring is mounted at the end of the rotating shaft, and the sealing ring is extruded into the circular hole of the workpiece.

8. The laser cutting slag removing mechanism according to claim 1, wherein limiting blocks are arranged on the rotating shaft on the front side and the rear side of the slag receiving hopper and used for enabling the slag receiving hopper to synchronously move back and forth along with the rotating shaft; the bottom of connect the sediment fill installs the guide rail, be provided with the guide way on the workstation, the guide way with the guide rail adaptation, connect the sediment fill along the guide way back-and-forth movement.

9. A laser cutting apparatus comprising a triaxial module, a laser cutting head and the laser cutting slag removal mechanism of any one of claims 1 to 8, the laser cutting head being mounted on the triaxial module, the triaxial module driving the laser cutting head to move directly over a workpiece in a workpiece hole, forming a cut hole in the top of the workpiece.