CN211804391U

CN211804391U - Laser processing machine tool

Info

Publication number: CN211804391U
Application number: CN201922445478.6U
Authority: CN
Inventors: 刘群; 曹轼毓; 张恭运; 张伟; 王德友; 郝文华; 王文超; 王修波; 李海翔; 孙涛; 李兴昊; 韩雅萍; 王莎莎; 路广明; 徐慎敏
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Shandong Haomai Cnc Machine Tool Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-30
Anticipated expiration: 2029-12-27

Abstract

An embodiment of the utility model provides a laser beam machining machine tool relates to machining equipment technical field. The embodiment of the utility model provides a laser beam machining machine includes lathe bed, motion, processing head and workstation. The moving mechanism is arranged on the lathe bed, the processing head is connected to the moving mechanism, and the moving mechanism drives the processing head to move relative to the workbench so as to process the workpiece on the workbench. The processing head is provided with a vibrating mirror and a fixing piece, and the fixing piece is used for limiting the tail section of the optical fiber so as to limit the motion range of the tail section of the optical fiber relative to the vibrating mirror, so that the optical path is stabilized, and the processing effect of laser is guaranteed.

Description

Laser processing machine tool

Technical Field

The utility model relates to a machining equipment field particularly, relates to a laser beam machining machine tool.

Background

In laser machining production, particularly when a three-dimensional curved surface is machined by laser, a machining head often needs to move relative to a workpiece. The laser processing head generally adopts an optical fiber to transmit laser beams, and finally emits the laser beams outwards through a galvanometer.

However, the existing laser processing equipment has poor processing effect, and the optical fiber is easy to wind and damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laser beam machining machine tool, for example, it can prolong and improve the current laser beam machining equipment processing effect poor, fragile problem.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides a processing machine tool, which comprises a machine tool body, a motion mechanism, a processing head and a workbench; the movement mechanism is arranged on the lathe bed, and the processing head is connected with the movement mechanism so as to enable the processing head to move relative to the workbench under the driving of the movement mechanism; the processing head is provided with a vibrating mirror and a fixing piece, and the fixing piece is used for limiting the tail section of the optical fiber so as to limit the movement range of the tail section relative to the vibrating mirror.

Optionally, the movement mechanism includes a first sliding structure, a second sliding structure, a third sliding structure, a first rotation structure and a second rotation structure; the first sliding structure and the second sliding structure are arranged on the bed body;

the first sliding structure is connected with the first rotating structure and used for driving the first rotating structure to move along a first direction; the first rotating structure is connected with the workbench and used for driving the workbench to rotate around a third direction;

the machining head is connected to the second rotating structure, the second rotating structure is connected to the third sliding structure, the third sliding structure is connected to the second sliding structure, the second sliding structure is used for driving the third sliding structure to move along the second direction, the third sliding structure is used for driving the second rotating structure to move along the third direction, and the second rotating structure is used for driving the machining head to rotate around the first direction;

any two of the first direction, the second direction and the third direction form an included angle, and any one of the first direction, the second direction and the third direction and a plane formed by the other two directions form an included angle.

Optionally, the laser processing machine tool further comprises a positioning assembly arranged on the processing head, and the positioning assembly is used for positioning a workpiece fixed on the workbench.

Optionally, the positioning assembly comprises a probe and/or a camera, the probe being used for aligning the workpiece; the camera is used for optically positioning the workpiece to determine the area to be processed on the workpiece.

Optionally, the probe is a mechanical probe, a slide rail is arranged on the machining head, and the mechanical probe is slidably arranged on the slide rail, so that the mechanical probe can be slidably connected with the machining head along a direction close to or far from the workbench.

Optionally, the laser processing machine tool further comprises an adapter, wherein the adapter is connected with the vibrating mirror and used for enabling the laser beam in the optical fiber to enter the vibrating mirror through the adapter.

Optionally, the laser processing machine further includes an optical isolator, the optical isolator is connected to the adapter, and the tail section of the optical fiber is connected to the optical isolator; the laser beam enters the galvanometer through the optical isolator and the adapter in sequence.

Optionally, the laser processing machine further includes a buffer member, where the buffer member is disposed on the fixing member and is used for buffering a connection position between the optical fiber and the fixing member.

Optionally, the buffer includes a first clamping block, a second clamping block and a clamping ball; the first clamping block and the second clamping block are connected to form an accommodating cavity; the accommodating cavity is provided with a spherical surface matched with the clamping ball so that the clamping ball can be rotatably arranged in the accommodating cavity; the clamping ball is provided with a channel for the optical fiber to pass through.

Optionally, the clamping ball includes a first clamping hemisphere and a second clamping hemisphere that can be mutually folded, and the channel is formed between the first clamping hemisphere and the second clamping hemisphere.

Optionally, the length of the tail section of the optical fiber is s, and s is more than or equal to 100 and less than or equal to 300 mm.

Optionally, the fixing member includes a sleeve fixedly connected to the galvanometer, and the sleeve is configured to be sleeved on the tail section of the optical fiber to limit the tail section of the optical fiber.

Optionally, the laser processing machine tool further comprises a cleaning assembly for removing smoke or debris generated by the processing.

Optionally, the cleaning structure comprises a blow pipe and a dust removal pipe which are arranged on the processing head; an air outlet of the air blowing pipe is arranged close to the vibrating mirror and used for blowing the scraps or the smoke; the dust removal pipe is used for absorbing smoke dust in the air.

The utility model discloses laser beam machining's beneficial effect includes, for example:

an embodiment of the utility model provides a laser beam machining machine, it includes lathe bed, motion, processing head and workstation. The moving mechanism is arranged on the lathe bed, the processing head is connected to the moving mechanism, and the moving mechanism drives the processing head to move relative to the workbench so as to process the workpiece on the workbench. The processing head is provided with the mirror and the mounting that shake, and the mounting is used for the tail-end of spacing optic fibre to the motion range of the mirror that shakes is relatively restricted to the tail-end of optic fibre, thereby stabilizes the light path, guarantees the processing effect of laser, can avoid the optic fibre winding, optic fibre tail-end and the junction of the mirror that shakes to produce the damage when the processing head moves moreover, and then helps increase of service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a processing machine tool provided in embodiment 1 of the present invention at a first viewing angle;

FIG. 2 is an enlarged view of a portion of FIG. 1 at II;

fig. 3 is a schematic partial structure diagram of a processing machine tool provided in embodiment 1 of the present invention at a second viewing angle;

fig. 4 is a schematic structural diagram of a processing machine tool provided in embodiment 1 of the present invention at a third viewing angle;

fig. 5 is a schematic cross-sectional structure diagram of a second rotating structure in the processing machine tool provided in embodiment 1 of the present invention;

fig. 6 is a schematic structural diagram of a laser processing assembly in the processing machine tool provided in embodiment 1 of the present invention;

fig. 7 is a schematic cross-sectional view of a laser processing assembly 180 in a laser processing machine 100 according to embodiment 1 of the present invention;

fig. 8 is a schematic cross-sectional view of a laser processing assembly 180 in a laser processing machine 100 according to embodiment 1 of the present invention;

FIG. 9 is an enlarged view of a portion of the structure at IX in FIG. 4.

Icon: 100-laser processing machine tool; 110-a lathe bed; 120-a first glide configuration; 130-a second glide configuration; 131-a second guide rail; 132-a second ram; 140-a third glide configuration; 141-a third guide rail; 142-a third ram; 150-a workbench; 160-a second rotational configuration; 161-torque motor; 162-a mandrel; 163-high precision encoder; 170-a processing head; 171-a probe; 172-camera; 180-laser machining the assembly; 181-an optical fiber; 182-an adapter; 183-fixing member; 184-a buffer; 1841-first clamping block; 1842-a second clamping block; 1843-first clamping hemisphere; 1844-a second clamping hemisphere; 185-galvanometer; 186-an optical isolator; 187-a light collimator; 191-an air blowing pipe; 192-a dust removal pipe; 193-a dust remover; 200-workpiece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Example 1

Fig. 1 is a schematic structural diagram of a laser processing machine 100 according to the present embodiment at a first viewing angle, and fig. 2 is an enlarged schematic partial structural diagram at ii in fig. 1. Referring to fig. 1 and fig. 2, the present embodiment provides a laser processing machine 100, which includes a bed 110, a moving mechanism, a processing head 170, and a worktable 150. The moving mechanism is disposed on the bed 110, and the processing head 170 is connected to the moving mechanism, and the processing head 170 is driven by the moving mechanism to move relative to the worktable 150, so as to process the workpiece 200 on the worktable 150. The machining head 170 is provided with the galvanometer 185 and the fixing piece 183, the fixing piece 183 is used for limiting the tail section of the optical fiber 181, so that the movement range of the tail section of the optical fiber 181 relative to the galvanometer 185 is limited, the light path is stabilized, the machining effect of laser is guaranteed, the damage to the joint of the tail section of the optical fiber 181 and the galvanometer 185 when the machining head 170 moves can be avoided, the tail section of the optical fiber 181 is prevented from being wound, and the service life is prolonged.

The laser processing machine 100 provided in the present embodiment will be further explained below:

with continued reference to fig. 1 and 2, in the present embodiment, the laser processing machine 100 further includes a positioning assembly disposed on the processing head 170, and the positioning assembly is used to position the workpiece 200. Specifically, the positioning assembly comprises a probe 171 and a camera 172, and the probe 171 is used for aligning the workpiece by detecting the coordinates of the workpiece 200 fixed on the worktable 150; the camera 172 takes a picture of the workpiece 200 to optically position the workpiece 200, and then determines the position of the region to be processed on the workpiece 200. Since the probe 171 is disposed on the processing head 170, when the probe 171 positions the workpiece 200, relative movement of the probe 171 and the workpiece 200 can be achieved to detect a plurality of positions on the workpiece 200 and output coordinates of the plurality of positions on the workpiece 200 to achieve precise positioning of the workpiece 200; after the positioning is completed, the camera 172 photographs the workpiece 200 and outputs the photo signal, so that the region to be processed on the workpiece 200 is accurately positioned through the information in the photo signal, the positioning is rapidly and accurately completed, the manual positioning time is reduced, the positioning precision is improved, and the intermittent and secondary processing is realized.

It should be noted that in the present embodiment, the workpiece is accurately positioned by the aid of the probe 171 and the camera 172, and it should be understood that in other embodiments, the structure of the positioning assembly may be specifically set according to the requirement of the user, for example, only the probe 171 or the camera 172 is set for positioning.

Fig. 3 is a partial schematic structural diagram of the laser processing machine 100 according to the embodiment at a second viewing angle. Referring to fig. 1 to fig. 3, in the present embodiment, the probe 171 is a contact type mechanical probe, and during positioning, the probe 171 is positioned by touching the surface of the workpiece 200. While the machining head 170 is provided with a slide rail on which a mechanical probe is slidably arranged so that the probe 171 is slidably connected to the machining head 170, the probe 171 being driven by a motor towards and away from the workpiece 200. When the position of the workpiece 200 needs to be detected by the probe 171, the probe 171 is driven to slide in a direction approaching the worktable 150, so that the probe 171 is in contact with the surface of the workpiece 200 to perform detection positioning; after the probe positioning is completed, the probe 171 can be recovered by driving the probe 171 to slide in a direction away from the table 150, so that the problem that the probe 171 touches the workpiece 200 and damages the probe 171 during the machining process can be prevented.

It should be noted that in the present embodiment, the probe 171 is a contact type mechanical probe, and it should be understood that in other embodiments, a non-contact type probe, such as an optical probe, may be selected according to the needs of the user.

Fig. 4 is a schematic structural diagram of the laser processing machine 100 according to the present embodiment at a third viewing angle. Referring to fig. 1 and 4, in the present embodiment, the work transporting mechanism includes a first sliding structure 120 and a second sliding structure 130 disposed on the bed 110. The first sliding structure 120 is used to connect with the workbench 150 and can drive the workbench 150 to move along a first direction. The processing head 170 is connected to the second sliding structure 130 and can move along the second direction under the driving of the second sliding structure 130. The first direction is disposed at an angle to the second direction to enable relative movement of the processing head 170 and the table 150 in a plane in which the first and second directions lie.

Specifically, the first glide structure 120 includes a first rail and a first ram slidably coupled to the first rail. The first guide rail is fixedly connected to the bed 110, and the first guide rail extends in a first direction. The worktable 150 is fixedly connected to the first ram, so that the sliding of the first ram relative to the first rail by the first driving device (not shown) drives the worktable 150 to slide along the first direction. Optionally, the first drive means comprises a servo motor.

The second glide structure 130 includes a second rail 131 and a second ram 132 slidably coupled to the second rail 131. The second rail 131 is fixedly connected to the bed 110, and the second rail 131 extends in the second direction. The machining head 170 is coupled to the second ram 132 such that sliding the second ram 132 relative to the second rail 131 by a second driving device (not shown) causes the machining head 170 to slide in the second direction. Optionally, the second drive means comprises a servo motor.

Optionally, the first direction is a direction of a Y axis, and the second direction is a direction of an X axis, that is, the first direction is perpendicular to the second direction, so that the processing head 170 and the worktable 150 can move relatively in an XY plane (that is, a horizontal plane) through the first sliding structure 120 and the second sliding structure 130, and therefore the probe 171 disposed on the processing head 170 can move in the XY plane with respect to the workpiece 200 to be processed along with the processing head 170, and further, a plurality of coordinate positions of the workpiece 200 to be processed can be detected through the probe 171, so as to accurately position the workpiece 200 to be processed.

Further, the moving mechanism further includes a third sliding structure 140 connected to the second sliding structure 130, the processing head 170 is connected to the third sliding structure 140, and when the third sliding structure 140 is driven by the second sliding structure 130 to move along the second direction, the processing head 170 moves along the second direction. The third sliding structure 140 is used to move the processing head 170 in a third direction. The third direction and the first direction and the second direction are arranged to form an included angle, and any one of the first direction, the second direction and the third direction and the other two planes are arranged to form an included angle, namely the first direction and the planes formed by the second direction and the third direction are arranged to form an included angle, the second direction and the planes formed by the first direction and the third direction are arranged to form an included angle, and the third direction and the planes formed by the first direction and the second direction are arranged to form an included angle. Optionally, the third direction is a direction of the Z axis, the third direction is perpendicular to both the first direction and the second direction, and the relative movement between the processing head 170 and the stage 150 in the three-dimensional space is realized through the combined action of the first sliding structure 120, the second sliding structure 130, and the third sliding structure 140. Specifically, the third sliding structure 140 includes a third rail 141 and a third ram 142 slidably connected to the third rail 141. The third rail 141 is fixedly coupled to the second ram 132, and the third rail 141 extends in a third direction. The machining head 170 is coupled to the third ram 142 such that sliding the third ram 142 relative to the third rail 141 by a third driving device (not shown) causes the machining head 170 to slide in a third direction. Optionally, the third drive means comprises a servo motor.

It should be noted that the sliding structure is not limited herein, and it should be understood that in other embodiments, a structure for driving the processing head 170 and the worktable 150 to slide may be specifically provided according to the requirement of the user.

It should be further noted that, in the present embodiment, the workbench 150 is disposed on the first sliding structure 120, the processing head 170 is disposed on the third sliding structure 140, and the third sliding structure 140 is disposed on the second sliding structure 130, so as to implement the relative movement of the workbench 150 and the processing head 170 in the three-dimensional space, which is reasonable in layout and beneficial to processing control, and it can be understood that, in other embodiments, the movement relationship between the processing head 170 and the workbench 150 may be specifically set according to requirements, for example, the workbench 150 is fixedly disposed, and the processing head 170 is disposed in a manner capable of moving along the first direction, the second direction, the third direction, and the like.

With continued reference to fig. 1 and 4, the motion mechanism further includes a first rotation structure for coupling with the platen 150 and for rotating the platen 150 relative to the processing head 170 in a third direction. In the present embodiment, the first rotating structure is provided at the table 150, thereby forming a related art swing table. The first rotating structure is connected to the first ram, so that the worktable 150 can move in a first direction by the first sliding structure 120.

Further, the moving mechanism further includes a second rotating structure 160, and the second rotating structure 160 is configured to rotate the processing head 170 relative to the worktable 150 about the first direction. Specifically, the second rotating structure 160 is connected to the third sliding structure 140, and the processing head 170 is connected to the second rotating structure 160. When in use, the third sliding structure 140, the second rotating structure 160 and the processing head 170 are driven by the second sliding structure 130 to move synchronously along the second direction; the second rotating structure 160 and the processing head 170 are driven by the third sliding structure 140 to synchronously move along the third direction; the processing head 170 is rotated in a first direction by the second rotation mechanism 160.

Through setting up first sliding structure 120, second sliding structure 130, third sliding structure 140, first revolution mechanic and second revolution mechanic 160, realize five-axis linkage, and then realized processing of processing head 170 on three-dimensional curved surface, the cooperation sets up probe 171 and camera 172 on processing head 170 and carries out the accurate positioning to production efficiency and production quality have effectively been improved.

Fig. 5 is a schematic cross-sectional view of a second rotating structure 160 in the laser processing machine 100 according to the present embodiment. Referring to fig. 5, in the present embodiment, the second rotating structure 160 includes a spindle 162 and a torque motor 161 sleeved outside the spindle 162, an axis of the spindle 162 extends along a first direction, and the torque motor 161 drives the spindle 162 to rotate around its own axis, so as to drive the processing head 170 to rotate around the first direction relative to the worktable 150. Specifically, the one end of dabber 162 is connected with the connecting plate, and processing head 170 fixed connection is on the connecting plate, and the mode that adopts torque motor 161 to directly drive removes drive dabber 162 and rotates, and then drives processing head 170 and rotate, need not to set up middle transmission structure, and then has avoided reverse clearance and power loss, has guaranteed the gyration precision, and torque motor 161 has low rotational speed simultaneously, big moment of torsion, the overload capacity is strong, the response is fast, advantages such as moment stirring round pin, more are fit for the linkage processing of high accuracy.

Further, the second rotating structure 160 further includes a high-precision encoder 163. The second rotating structure 160 provided by this embodiment can rotate at least ± 135 °, so that a larger processing range is beneficial to the free processing of the annular workpiece on both sides of the worktable 150, and the rotating range can even cover about 75% of the area of the spherical workpiece, thereby being beneficial to processing various workpieces with free curved surfaces.

Fig. 6 is a schematic structural diagram of a laser processing assembly 180 in the laser processing machine 100 provided in this embodiment, and fig. 7 is a schematic cross-sectional structural diagram of the laser processing assembly 180 in the laser processing machine 100 provided in this embodiment. Referring to fig. 6 and 7, in the present embodiment, the laser processing machine 100 further includes a laser processing assembly 180 disposed on the processing head 170. The laser emitted outward by the laser processing assembly 180 effects three-dimensional engraving of the surface of the workpiece 200. The laser machining assembly 180 includes a galvanometer 185 disposed on the machining head, and in use, the optical fibre 181 is connected at its tail to the galvanometer 185, and the laser beam transmitted by the optical fibre 181 is emitted outwardly through the galvanometer 185.

Further, the laser processing assembly 180 further comprises an adapter 182 connected to the galvanometer 185, and in use, the adapter 182 is connected to the tail section of the optical fiber 181, so that the laser beam in the optical fiber 181 enters the galvanometer through the adapter 182. Preferably, the adapter 182 is located at one side of the galvanometer 185, and the optical beam is introduced into the galvanometer 185 through the adapter 182, thereby avoiding damage to the galvanometer 185. Further, laser beam machining subassembly 180 still includes optical isolator 186, and optical isolator 186's both ends are connected with adapter 182 and optic fibre 181 respectively, and the laser beam in the optic fibre 181 gets into mirror 185 that shakes after optical isolator 186 and adapter 182 in proper order to through the mirror 185 outwards transmission that shakes, in order to carry out laser engraving. Further, the laser processing assembly 180 further includes an optical collimator 187 connected to one end of the optical isolator 186, and the optical isolator 186 is connected to the optical fiber 181 through the optical collimator 187.

Referring to fig. 6 and 7, the laser processing assembly 180 further includes a fixing member 183, and the fixing member 183 limits the tail section of the optical fiber 181, so that the tail section of the optical fiber 181 can only move within a certain range relative to the galvanometer 185, thereby stabilizing the optical path. Preferably, the range of motion of the tail section of the optical fiber 181 relative to the galvanometer 185 is an inverted cone with a cone angle of less than 3 °.

The fixing member 183 is preferably a sleeve fixedly disposed on the processing head, the sleeve is sleeved on the tail section of the optical fiber 181, and the sleeve is connected to the tail section of the optical fiber 181, for example, connected to the tail section of the optical fiber 181 by clamping, binding, or the like, so that the movement range of the tail section of the optical fiber 181 relative to the galvanometer 185 can be limited during the movement of the processing head 170, and even the tail section of the optical fiber 181 is kept still relative to the galvanometer 185, thereby stabilizing the optical path, and particularly avoiding that the relative position difference between the tail section of the optical fiber 181 and the galvanometer 185 is too large when the processing head 170 rotates in different directions and/or rotates at different angles, which causes too large and/or inconsistent deviation of the light beam transmission path, and further causes processing errors. The tail section of the optical fiber 181 fixed by the sleeve can also be protected to avoid damage. Specifically, in this embodiment, the sleeve is fixedly attached to the adapter 182 and the optical isolator 186 is disposed within the sleeve. The part of the optical fiber 181 which is positioned in the sleeve is the tail section of the optical fiber 181, the tail section of the optical fiber 181 is arranged in the sleeve, and the sleeve is used for fixing the tail section of the optical fiber 181 so as to limit the movement of the tail section of the optical fiber 181 relative to the galvanometer 185, or the tail section of the optical fiber 181 is made to be static relative to the galvanometer 185, so that when the processing head moves, the tail section of the optical fiber 181 is ensured to be static relative to the galvanometer 185 or only slightly moves relative to the galvanometer 185, and the optical path is stabilized. Further, the length of the tail section of the optical fiber 181 is 100mm or more. Preferably, the length of the tail section is s, and s is more than or equal to 100 and less than or equal to 300 mm. Optionally, the length of the tail section is 100mm, 200mm or 300 mm.

Further, the tail section of the optical fiber 181 is disposed perpendicular to the predetermined plane. In this embodiment, the processing head 170 is connected to the second rotating structure 160, and in use, the processing head 170 and the optical fiber 181 thereon are driven by the second rotating structure 160 to rotate relative to the bed 110, when the rotation angle of the second rotating structure 160 is 0 °, that is, the processing head is located at the position shown in fig. 1, the predetermined plane is a horizontal plane, and when the optical fiber 181 is driven by the second rotating structure 160 to rotate along with the processing head 170, the predetermined plane rotates therewith. It will be appreciated that in other embodiments, the predetermined plane is the horizontal plane when the machining head 170 is in the position shown in fig. 1, provided that the angle of the machining head 170 with respect to the bed 110 does not change during use.

It should be noted that the structure of the fixing member 183 is not limited herein, and it is understood that in other embodiments, the specific structure of the fixing member 183 may be set according to requirements, for example, the fixing member 183 is set as a fixing plate or a fixing rod, and the tail section of the optical fiber is connected to the fixing member 183, for example, connected to the tail section of the optical fiber 181 by clamping, binding, or the like, so as to limit the movement of the tail section of the optical fiber 181 relative to the galvanometer 185 during the movement of the processing head 170.

Fig. 8 is a schematic diagram of an exploded structure of the buffer 184 in the laser processing machine 100 according to the present embodiment. Referring to fig. 7 and 8 in combination, in the present embodiment, the fixing member 183 is preferably connected to the tail section of the optical fiber 181 through a buffer member 184, and the connection position of the fixing member 183 and the optical fiber 181 can be buffered by providing the buffer member 184, so that adverse effects that may be generated on the optical fiber 181 during the rotation of the processing head 170 can be effectively alleviated, and the service life of the connection position of the optical fiber 181 and the fixing member 183 can be ensured.

Optionally, the dampener 184 includes a first grip block 1841, a second grip block 1842, and a grip ball. First clamp block 1841 is mated with second clamp block 1842 to form a receiving cavity for receiving a clamp ball. The receiving cavity has a spherical surface that mates with the clamping ball, thereby enabling the clamping ball disposed in the receiving cavity to universally rotate relative to first and second clamp blocks 1841 and 1842. The clamping ball is provided with a channel for the optical fiber 181 to penetrate through, and the clamping ball can rotate in the accommodating cavity in a universal manner, so that the optical fiber 181 can obtain universal buffering in the movement process of the processing head 170, and the buffering effect is good. Further, the centre gripping ball includes first centre gripping hemisphere 1843 and the second centre gripping hemisphere 1844 that involutes each other, forms the passageway that supplies optic fibre 181 to wear to establish between first centre gripping hemisphere 1843 and the second centre gripping hemisphere 1844 to it is more convenient to clamp the ball and be connected of optic fibre 181, and can understand, in other embodiments, the centre gripping ball also can be the integrated into one piece who possesses the passageway, first centre gripping hemisphere 1843 and second centre gripping hemisphere 1844 integrated into one piece promptly.

It should be noted that the structure of the buffer member 184 is not limited herein, and it is understood that in other embodiments, the specific structure of the buffer member 184 may be provided as needed, for example, the buffer member 184 is provided as a corrugated hose, and the optical fiber 181 is inserted into the corrugated hose, so that the torque generated by the rotation of the processing head 170 to the optical fiber 181 can be relieved.

FIG. 9 is an enlarged view of a portion of the structure at IX in FIG. 4. Referring to fig. 2 and 9, in the present embodiment, the laser processing machine 100 further includes a cleaning component, and the cleaning component cleans the dust, debris, and the like generated by the processing. Optionally, the cleaning assembly includes a blow tube 191 disposed on the machining head 170. When processing, the smoke generated by processing is taken away by the gas blown out by the gas blowing pipe 191 and blown into the air, the chips are blown down, and meanwhile, the smoke in the air is sucked away through the suction effect of the dust removing pipe 192, so that the influence of the chips on the processing is avoided, and the purpose of ensuring the cleanliness of the working environment of the equipment operators is realized. The air outlet of the air blowing pipe 191 is arranged close to the vibrating mirror 185, so that smoke dust and debris generated after the laser emitted from the vibrating mirror 185 processes the workpiece 200 can be timely and effectively removed.

Meanwhile, the bed 110 of the laser processing machine tool 100 is also provided with a dust remover 193, the dust remover 193 is communicated with the dust removing pipe 192, air containing smoke dust sucked by the dust removing pipe 192 is filtered by the dust remover 193 and then is discharged into the atmosphere, and emission of pollutants such as smoke dust in the processing process is guaranteed. The suction port of the dust removal pipe 192 is disposed close to the galvanometer 185 to ensure timely and effective dust removal processing.

It should be noted that in the present embodiment, the cleaning is performed by the cooperation of the air blowing pipe 191 and the dust removing pipe 192, and it is understood that in other embodiments, a specific cleaning structure may be adopted according to requirements, for example, only the air blowing pipe 191 or the dust removing pipe 192 is provided.

According to the laser processing machine 100 provided by the embodiment, the working principle of the laser processing machine 100 is as follows:

when in use, the workpiece 200 is firstly fixed on the workbench 150, and then the relative movement of the processing head 170 and the workpiece 200 in an XY plane is realized through the mutual matching of the first sliding structure 120 and the second sliding structure 130, so that the position of the workpiece is determined through the detection of coordinates at a plurality of positions on the workpiece 200 by the probe 171; next, the camera 172 photographs the workpiece 200 to output image information of the workpiece 200, and the image recognition system can identify the processing area of the workpiece 200 by recognizing the image information. Through the cooperation of probe 171 and camera 172, realized quick location mark point (promptly processing position), the precision can reach 0.01mm, helps reducing the time of artifical location, improves positioning accuracy, more can realize intermittent type, secondary operation. After the positioning is finished, the texture carving processing of the laser on the three-dimensional curved surface can be realized through the mutual matching of five shafts, the production efficiency is high, and the production quality is high.

The laser processing machine 100 provided by the embodiment has at least the following advantages:

by the matching positioning of the probe 171 and the camera 172 on the processing head 170, the time for manual positioning is reduced, the positioning accuracy is improved, and meanwhile, the intermittent and secondary processing is facilitated. By setting the five-axis linkage between the processing head 170 and the workpiece 200 to be processed, texture carving on the three-dimensional curved surface can be realized, the production efficiency and the production quality are improved, and the operation is stable. Meanwhile, the fixing member 183 is provided at the tail section of the optical fiber 181, so that the tail section of the optical fiber 181 can be kept stationary relative to the galvanometer 185 during processing, thereby stabilizing the optical path and ensuring the processing effect. At the end of the fixing member 183 far from the end of the galvanometer 185 and at the position where the fixing member is connected with the optical fiber 181, the buffering member 184 is arranged to buffer the optical fiber 181, so that the adverse effect on the optical fiber 181 which may be caused by the rotation of the processing head 170 is effectively alleviated, and the service life is prolonged.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A laser processing machine tool is characterized by comprising a machine body, a movement mechanism, a processing head and a workbench; the movement mechanism is arranged on the lathe bed, and the machining head is connected with the movement mechanism so as to be driven by the movement mechanism to move relative to the workbench; the processing head is provided with a vibrating mirror and a fixing piece, and the fixing piece is used for limiting the tail section of the optical fiber so as to limit the movement range of the tail section relative to the vibrating mirror.

2. The laser processing machine of claim 1, wherein the motion mechanism comprises a first sliding structure, a second sliding structure, a third sliding structure, a first rotating structure and a second rotating structure; the first sliding structure and the second sliding structure are arranged on the bed body;

the machining head is connected to the second rotating structure, the second rotating structure is connected to the third sliding structure, the third sliding structure is connected to the second sliding structure, the second sliding structure is used for driving the third sliding structure to move along a second direction, the third sliding structure is used for driving the second rotating structure to move along a third direction, and the second rotating structure is used for driving the machining head to rotate around the first direction;

3. A laser machining tool as claimed in claim 1, further comprising a positioning assembly provided on the machining head for positioning a workpiece secured to the table.

4. A laser processing machine according to claim 3, wherein the positioning assembly comprises a probe and/or a camera; the probe is used for aligning the workpiece; the camera is used for optically positioning the workpiece to determine a region to be processed on the workpiece.

5. A laser processing machine according to any of claims 1-4, characterized in that the laser processing machine further comprises an adapter, which is connected to the galvanometer mirror for letting the laser beam in the optical fiber enter the galvanometer mirror via the adapter.

6. The laser-machining tool of claim 5, further comprising an optical isolator, the optical isolator being coupled to the adapter and the pigtail of the optical fiber being coupled to the optical isolator; the laser beam sequentially passes through the optical isolator and the adapter to enter the galvanometer.

7. The laser processing machine according to any one of claims 1 to 4, further comprising a buffer member provided on the fixing member and configured to buffer a connection position of the optical fiber and the fixing member.

8. The laser processing machine of claim 7, wherein the buffer comprises a first clamping block, a second clamping block, and a clamping ball; the first clamping block and the second clamping block are connected to form an accommodating cavity; the accommodating cavity is provided with a spherical surface matched with the clamping ball, so that the clamping ball can be rotatably arranged in the accommodating cavity; the clamping ball is provided with a channel for the optical fiber to penetrate through.

9. The laser-machining tool of claim 8, wherein the clamping ball includes first and second clamping hemispheres that are mutually engageable to form the channel therebetween.

10. A laser processing machine as claimed in any of claims 1-4, characterized in that the length of the tail section of the optical fibre is s, 100 ≦ s ≦ 300 mm.

11. A laser machining tool according to any one of claims 1 to 4, wherein the mount comprises a sleeve fixedly attached to the galvanometer, the sleeve being adapted to fit over the tail section of the optical fibre.

12. A laser processing machine according to any of claims 1-4, characterized in that the machine further comprises a cleaning assembly for removing dust or debris from the process.

13. The laser-machining tool of claim 12, wherein the cleaning assembly includes a blowpipe and a dust extraction pipe disposed on the machining head; an air outlet of the air blowing pipe is arranged close to the vibrating mirror and used for blowing the scraps or the smoke; the dust removal pipe is used for sucking the smoke dust in the air.