CN113579513A

CN113579513A - Laser cutting device

Info

Publication number: CN113579513A
Application number: CN202110934237.7A
Authority: CN
Inventors: 吕时广; 金红英; 陈勇良; 张天伟; 王静; 郑群强; 王灵英; 叶建林
Original assignee: Zhejiang Jinaolan Machine Tool Co ltd
Current assignee: Zhejiang Jinaolan Machine Tool Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-11-02

Abstract

The invention discloses a laser cutting device, which comprises a laser head, a movable module and a clamp, wherein a positioning part for positioning a pipe fitting is arranged on the clamp, a reference device matched with the positioning part is arranged on the clamp and used for the laser head to find a cutting initial position, the positioning part is connected with the reference device through a transmission part, a waste receiving device capable of storing cut waste is arranged in the positioning part, and a driving part matched with the movable module and capable of driving the reference device and the waste receiving device to move is arranged on the clamp.

Description

Laser cutting device

Technical Field

The invention relates to the technical field of laser cutting equipment, in particular to a laser cutting device.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to enable the workpiece to reach a melting point or a boiling point, and simultaneously, the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal; existing laser cutting machines are generally used to cut sheet metal.

However, in the production and manufacturing process, through holes are usually required to be formed in pipe fittings such as square pipes and rectangular pipes, some holes are non-standard round holes, and laser cutting is required to be used for machining, because of the laser cutting distance, one surface is machined firstly when the pipe fittings are machined by laser, and then the other surface is machined after the pipe fittings are turned over for 180 degrees, at the moment, the center of the machined through hole is deviated due to the fact that machining reference cannot be accurately positioned, and subsequent installation is influenced; in addition, the slag produced during the processing of the first surface falls to the inner wall of the pipe to form adhesion, which is difficult to remove, and affects the processing of the second surface.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a laser cutting device.

In order to solve the technical problems, the invention is solved by the following technical scheme: laser cutting device includes laser head, removes module and anchor clamps.

Among the above-mentioned scheme, it is preferred, be equipped with the location portion that is used for the pipe fitting location on the anchor clamps, be equipped with on the anchor clamps with location portion matched with benchmark device for the laser head is looked for accurately cutting initial position, link to each other through transmission portion between location portion and the benchmark device, be equipped with the waste material receiving arrangement that can store the cutting back waste material in location portion, be equipped with on the anchor clamps with remove module matched with and can drive the drive division that benchmark device and waste material receiving arrangement removed, its beneficial effect lies in: the laser cutting device for cutting the through hole of the pipe fitting is provided, so that a laser point of the pipe fitting after being turned can accurately find a cutting reference point before being turned.

In the above scheme, it is preferred, anchor clamps include the frame, location portion includes initiative chuck and driven chuck, the initiative chuck is connected with the motor, be equipped with first gear on the driven chuck, its beneficial effect lies in: a clamping part of the pipe fitting is provided, and the pipe fitting can be driven to turn over by a motor after being clamped.

In the above scheme, preferably, the reference device includes a reference plate, a reference rod and a first spring, the reference plate is disposed on the reference rod, the reference rod is disposed on the frame, the first spring is disposed between the reference rod and the frame, two ends of the reference rod are respectively provided with the drive plate and the mounting plate matched with the first spring, and the reference device has the advantages that: the specific structure of the reference device is provided, so that the reference device has a sliding function and is convenient to avoid a laser head during laser cutting.

In the above scheme, it is preferable that the transmission part includes a first gear and a second gear, the second gear is arranged on the frame, the reference rod is arranged on the second gear, the first gear and the second gear are engaged with each other, and the transmission part has the following beneficial effects: the specific structure of the transmission part is provided, so that the positioning part can drive the reference device to turn over synchronously when turning over.

In the above scheme, preferably, the two ends of the reference plate are symmetrically provided with the reference apexes, the center of the reference plate is provided with the mounting hole, the distances from the reference apexes on the two sides to the mounting hole are equal, and the connecting line between the reference apexes is perpendicular to the axial line of the mounting hole, so that the device has the advantages that: the specific structure of the reference plate is provided, so that the reference apexes at two ends of the reference plate are always positioned on the same axis after the reference plate is turned over.

In the above scheme, it is preferred, waste material receiving arrangement includes waste material hopper, transmission shaft, third gear and deflector, the transmission shaft both ends are equipped with waste material hopper and deflector respectively, the third gear is located in the frame, the transmission shaft is located in the third gear, be equipped with in the third gear with transmission shaft matched with ball nut, be equipped with on the deflector with frame matched with guide bar, its beneficial effect lies in: there is provided a specific structure of a waste material receiving apparatus in which waste materials after cutting can be loaded into the waste material receiving apparatus.

In the above scheme, it is preferred, drive division drive block, locating lever and second spring, the locating lever is located on the drive block, be equipped with in the frame with locating lever matched with position sleeve, the second spring is located between drive block and the position sleeve, and its beneficial effect lies in: provides a specific structure of the driving part, which enables the driving part to have the function of sliding up and down.

In the above scheme, preferably, the driving block is provided with a rack engaged with the third gear and an inclined plane matched with the driving plate, and the driving block has the following beneficial effects: a specific matching mode between the driving block, the third gear and the driving plate is provided, so that the movement of the reference device and the movement of the waste receiving device are realized.

In the above scheme, it is preferred, be equipped with the steel ball on the drive block, be equipped with on the removal module with steel ball matched with clamp plate, its beneficial effect lies in: the utility model provides a cooperation structure of drive block and removal module makes the removal module drive the laser head and pushes down the drive block with the steel ball contact when pushing down.

The invention has the beneficial effects that: the invention provides the laser cutting device for finding the cutting reference point during the turning cutting of the pipe fitting, and waste materials after cutting are directly collected and cannot be adhered to the inner wall of the pipe fitting, so that the cutting efficiency is improved, and the cutting quality is improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a front perspective view of the clamp of the present invention.

Fig. 3 is a schematic rear perspective view of the clip of the present invention.

FIG. 4 is a schematic cross-sectional view of the present invention.

FIG. 5 is a schematic diagram of a driving block according to the present invention.

FIG. 6 is a schematic view of the structure of a transmission shaft and a waste bin according to the present invention.

FIG. 7 is a schematic view of a third gear of the present invention.

FIG. 8 is a schematic diagram of a reference plate structure according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-8, laser cutting device, including laser head 1, removal module 2 and anchor clamps 3, laser head 1 is located and is removed on the module 2, remove the mobile device of module 2 for current laser head 2, all adopt PLC control, this is prior art, anchor clamps 3 are located laser head 2 below and are used for making the pipe fitting location.

The clamp 3 comprises a frame 4, a driving chuck 11 and a driven chuck 12 are arranged on the frame 4, a clamping mechanism between the driving chuck 11 and the pipe fitting and between the driven chuck 12 and the pipe fitting is an existing clamping chuck, and redundant description is omitted here, a driving rotating shaft is arranged on the driving chuck 11, the driving rotating shaft is rotatably arranged on the frame 4, and the driving rotating shaft is connected with a driving motor and used for driving the driving rotating shaft to rotate, namely, the driving chuck 11 is driven to rotate; the driven chuck 12 is provided with a driven rotating shaft, the driven rotating shaft is rotatably arranged on the frame 4, the driving rotating shaft and the driven rotating shaft are coaxially arranged, namely, after the two ends of the pipe are clamped by the driving chuck 11 and the driven chuck 12, the driven rotating shaft rotates along with the rotation of the driving rotating shaft; the driving rotating shaft can also be connected with an index plate, the index plate can be manually rotated to drive the driving rotating shaft to rotate, and the index plate can realize the accurate angle when the driving rotating shaft rotates.

One end of the driven chuck 12 clamps the pipe fitting, the other end of the driven chuck is fixedly provided with a first gear 13 after penetrating through the rack 4 through a driven rotating shaft, a bearing is arranged between the driven rotating shaft and the rack 4, and the first gear 13 and the driven rotating shaft are preferably welded or can be in key fit connection; the driven rotating shaft is a hollow shaft, and the through hole penetrates through the panel of the driven chuck 12.

A transmission shaft 32 penetrates through the driven chuck 12, the transmission shaft 32 is a screw shaft, a waste hopper 31 is arranged after the transmission shaft 32 penetrates through a through hole of the driven rotating shaft, the waste hopper 31 is arranged between the driven chuck 12 and a pipe fitting, a guide plate 34 is fixedly arranged at the other end of the transmission shaft 32, a guide rod 36 is arranged below the guide plate 34 and towards one side of the driven chuck 12, the guide rod 36 is arranged on a fixing plate on the rack 4 in a sliding and penetrating manner, and a gap is arranged between the transmission shaft 32 and the through hole of the driven rotating shaft, namely, the transmission shaft 32 can slide in the through hole of the driven rotating shaft.

The middle of the transmission shaft 32 is provided with a third gear 33, a ball nut 35 matched with the transmission shaft 32 is arranged in the third gear 33, namely, the ball nut 35 is in threaded fit with the screw shaft, the third gear 33 and the ball nut 35 are preferably integrally formed, a shaft neck is arranged on the third gear 33, a shaft neck plate matched with the third gear 33 is arranged on the rack 4, the third gear 33 is rotatably arranged on the shaft neck plate, and a retainer ring matched with the shaft diameter plate is arranged on the shaft diameter of the third gear 33, namely, the third gear 33 can only rotate on the shaft neck plate and can not axially slide.

First gear 13 top is equipped with second gear 14 with it meshing, first gear 13 is the same gear with second gear 14, and tooth number, modulus are all the same promptly, second gear 14 rotates and locates on frame 4, be equipped with the bearing between second gear 14 and the frame 4, be equipped with the splined hole in the second gear 14, it is equipped with benchmark pole 22 to slide in the splined hole, benchmark pole 22 is the integral key shaft, and its surface is equipped with the spline with second gear 14 internal spline hole matched with spline, and second gear 14 rotates and can drive benchmark pole 22 and rotate promptly, and benchmark pole 22 can slide in second gear 14.

The mounting plate 25 is arranged on one side, close to the driven chuck 12, of the reference rod 22 after penetrating through the second gear 14, the reference plate 21 is fixedly arranged on the mounting plate 25, reference apexes 26 are symmetrically arranged at two ends of the reference plate 21, one side apex 26 is arranged on the surface of a pipe fitting but is not in contact with the pipe fitting, namely, the reference plate 21 is arranged perpendicular to the surface of the pipe fitting, a mounting hole 27 is formed in the center of the reference plate 21, the mounting hole 27 is preferably a circular arc-shaped long groove with a symmetrical center, the center line between two circular arcs of the circular arc-shaped long groove is perpendicular to the connecting line between the reference apexes 26 at two sides, the circular arc-shaped long groove is used for adjusting the distance between the reference plate 21 and the reference rod 22, and an adjusting screw is arranged between the reference plate 21 and the mounting plate 25.

The cover is equipped with first spring 23 on benchmark pole 22, first spring 23 both ends lean on mounting panel 25 and frame 4 respectively, preferably set up annular gasket between first spring 23 and mounting panel 25 and frame 4 to reduce benchmark pole 22 and when rotating mounting panel 25 and frame 4 bring the relative frictional force for first spring 23.

And a driving plate 24 is fixedly arranged at the other end of the reference rod 22, the driving plate 24 is preferably a circular plate, and the driving plate 24 and the reference rod 22 are preferably fixedly connected through bolts.

A driving block 41 is vertically and slidably arranged on the rack 4, a positioning rod 42 is arranged on one side of the driving block 41, a positioning sleeve 44 through which the positioning rod 42 can slide is arranged on the rack 4, the positioning sleeve 44 is fixedly arranged on a bottom plate of the rack 4, a second spring 43 is sleeved on the positioning rod 42, and two ends of the second spring 43 respectively abut against the upper end surface of the positioning sleeve 44 and the connecting end surface between the positioning rod 42 and the driving block 41; the laser head comprises a driving block 41, and is characterized in that steel balls 47 are arranged on the upper end face of the driving block 41, the steel balls 47 are preferably embedded into the driving block 41 and can rotate on the driving block 41, a pressing plate 48 matched with the steel balls 47 is arranged on the movable module 2, namely, the pressing plate 48 is in contact with the steel balls 47 to press the driving block 41 downwards, the pressing plate 48 can descend along with the descending of the laser head 1, the area of the pressing plate 48 is larger than the upper end face of the driving block 41, namely, the pressing plate 48 is always in contact with the steel balls 47 when the laser head 1 moves and cuts, and the steel balls 47 can reduce the friction force between the pressing plate 48 and the driving block 41 when the pressing plate moves.

The lower end of the driving block 41 is provided with a rack 45 engaged with the third gear 33, the rack 45 can drive the third gear 33 to rotate when descending along with the driving block 41, the third gear 33 further drives the ball nut 35 to rotate, then the rotating shaft 32 slides, and then the waste hopper 31 slides into the pipe fitting.

The driving block 41 is further provided with an inclined surface 46 matched with the driving plate 24, the inclined surface 46 inclines downwards to one side close to the second gear 14 due to self damage, and the driving plate 24 is provided with an arc matched and transited with the inclined surface 46.

Method of using the laser cutting device as described above: when the cutting device is used, the front surface of a pipe is cut firstly, a reference center 26 close to the surface of the pipe on a reference plate 21 is aligned with a reference point to be cut, then a laser head 1 is aligned with the reference center 26 above the reference plate 21, the laser head 1 starts to cut after moving downwards, the inclined surface 46 is matched with a driving plate 24 while moving downwards to enable a reference rod 22 to move to one side far away from the laser head 1, the laser head 1 is enabled not to interfere with the reference plate 21 during cutting, meanwhile, a rack 45 is matched with a third gear 33 to enable the third gear 33 to rotate, the third gear 33 further drives a ball nut 35 to rotate and then enable a rotating shaft 32 to slide, then a waste hopper 31 slides into the pipe, waste materials during cutting are inserted into the waste hopper 31, the laser head 1 rises after the front surface cutting is finished, and all parts reset; then cutting the reverse side of the pipe, rotating the driving chuck 11 at the moment to rotate 180 degrees, simultaneously rotating the driving chuck and driving the second gear 14 to rotate 180 degrees by the first gear 13, driving the reference rod 22 to rotate 180 degrees by the second gear 14, simultaneously rotating the reference plate 21 to the other side of the pipe around the reference rod 22, namely rotating the reference center 26 aligned with the reference point to the upper side, rotating the reference center 26 positioned above to one side close to the surface of the pipe, coinciding the reference center 26 with the reference point during the front side cutting, moving the laser head 1 to the position of the reference center 26 above to align and then cutting again, wherein the cut holes on the front side and the back side after cutting are identical, so that the precision of the through hole of the pipe is higher after cutting.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Laser cutting device, including laser head (1), removal module (2) and anchor clamps (3), its characterized in that: be equipped with the location portion that is used for the pipe fitting location on anchor clamps (3), be equipped with on anchor clamps (3) with location portion matched with benchmark device for laser head (1) is looked for cutting initial position, link to each other through transmission portion between location portion and the benchmark device, be equipped with the waste material receiving arrangement that can store the cutting back waste material in the location portion, be equipped with on anchor clamps (3) with remove module (2) matched with and can drive the drive division that benchmark device and waste material receiving arrangement removed.

2. The laser cutting device according to claim 1, wherein: the fixture (3) comprises a frame (4), the positioning part comprises a driving chuck (11) and a driven chuck (12), the driving chuck (11) is connected with a motor, and a first gear (13) is arranged on the driven chuck (12).

3. The laser cutting device according to claim 2, wherein: the reference device comprises a reference plate (21), a reference rod (22) and a first spring (23), wherein the reference plate (21) is arranged on the reference rod (22), the reference rod (22) is arranged on the rack (4), the first spring (23) is arranged between the reference rod (22) and the rack (4), and two ends of the reference rod (22) are respectively provided with a drive plate (24) and a mounting plate (25) matched with the first spring (23).

4. The laser cutting device according to claim 3, wherein: the transmission part comprises a first gear (13) and a second gear (14), the second gear (14) is arranged on the rack (4), the reference rod (22) is arranged on the second gear (14), and the first gear (13) is meshed with the second gear (14).

5. The laser cutting device according to claim 3, wherein: the novel horizontal lathe is characterized in that reference apexes (26) are symmetrically arranged at two ends of the reference plate (21), a mounting hole (27) is formed in the center of the reference plate (21), the distances from the reference apexes (26) at two sides to the mounting hole (27) are equal, and a connecting line between the reference apexes (26) is perpendicular to the axial line of the mounting hole (27).

6. The laser cutting device according to claim 2, wherein: waste material receiving arrangement includes waste material fill (31), transmission shaft (32), third gear (33) and deflector (34), transmission shaft (32) both ends are equipped with waste material fill (31) and deflector (34) respectively, third gear (33) are located on frame (4), transmission shaft (32) are located in third gear (33), be equipped with in third gear (33) with transmission shaft (32) matched with ball nut (35), be equipped with on deflector (34) with frame (4) matched with guide bar (36).

7. The laser cutting device according to claim 2, wherein: the positioning device comprises a driving part driving block (41), a positioning rod (42) and a second spring (43), wherein the positioning rod (42) is arranged on the driving block (41), a positioning sleeve (44) matched with the positioning rod (42) is arranged on the rack (4), and the second spring (43) is arranged between the driving block (41) and the positioning sleeve (44).

8. The laser cutting device according to claim 6 or 7, characterized in that: the driving block (41) is provided with a rack (45) meshed with the third gear (33) and an inclined plane (46) matched with the driving plate (24).

9. The laser cutting device according to claim 1, wherein: the driving block (41) is provided with steel balls (47), and the movable module (2) is provided with a pressing plate (48) matched with the steel balls (47).