CN113977107A - Laser cutting machine of work piece hole site - Google Patents

Abstract

The invention relates to a laser cutting machine for hole sites of workpieces, which comprises a rack and a laser cutting machine head assembled above the rack, wherein a positioning jig, a rotary workbench and a camera device are assembled on the rack, the positioning jig is rotatably assembled on the rotary workbench and is provided with a first channel, the rotary workbench is provided with a second channel, the camera device sequentially obtains image data of the lower surface of a workpiece to be cut assembled on the positioning jig through the second channel and the first channel, a control device outputs a rotation control signal according to the image data, the rotary workbench controls the positioning jig to rotate by a certain angle according to rotation angle information so as to adjust the position to be cut of the workpiece to be cut, and the control device is in communication connection with the camera device, the rotary workbench and the laser cutting machine head. The invention reduces the cost of software and hardware of the machine station and improves the processing efficiency and reliability.

Description

Laser cutting machine of work piece hole site

Technical Field

The invention relates to the technical field of laser cutting, in particular to a laser cutting machine for workpiece hole sites.

Background

CCD laser cutting board among the conventional art, all adopt CCD camera to set up and carry out image acquisition back linkage laser cutting aircraft nose and realize laser cutting in treating the front of cutting the position of treating the cutting work piece directly over treating the cutting work piece, carry out position adjustment through the workstation to treating the cutting work piece or carry out position adjustment through manipulator control laser cutting aircraft nose in order to realize the laser cutting of different angles when necessary, the data that this kind of board needs controlling means to regulate and control and handle are more, so many control system's data processing's precision, mechanical control precision requirement is higher, so higher in manufacturing cost, and the structure of board constitutes comparatively complicacy, occupation space is great, cost of maintenance is also often higher.

Chinese utility model patent No. CN201405162Y discloses an ultraviolet laser device for cutting a copper substrate for a high-power LED chip, which includes an ultraviolet laser, an optical image system and a processing platform, wherein an output end of the ultraviolet laser is provided with an optical shutter, an output end of the optical shutter is connected with a beam expander, an output end of the beam expander is arranged with a first reflector, the first reflector is connected with a second reflector, an output end of the second reflector is connected with a focusing mirror, and the focusing mirror is opposite to the processing platform; the optical image system comprises a third reflector, a fourth reflector, a first CCD, a second CCD, a first illumination light source, a second illumination light source and a third CCD; laser emitted by the ultraviolet laser is incident to the optical shutter, the laser is vertically incident to the beam expanding lens through the optical shutter, the laser passing through the beam expanding lens is sequentially incident to the 45-degree first reflecting mirror and the second reflecting mirror, the reflected laser is vertically incident to the focusing mirror, and the laser penetrating through the focusing mirror is focused on the processing platform. The copper substrate LED chip is adsorbed on the processing platform, and the ultraviolet laser can cut the copper substrate at one time. This prior art relies on adopting non-light tight processing platform as the year thing plane to the copper base plate, disposes the third CCD below the bottom of copper base plate and realizes the image data to the work piece lower surface, and whether the third CCD observes laser and sees through the copper base plate in the course of working, debugs the degree of depth of cutting through the cutting speed that changes the platform or the frequency that changes the laser instrument, improves the precision of laser cutting. Although the prior art provides the application of a CCD camera to image the bottom of a workpiece, the technical problem to be solved is to correspondingly adjust the cutting parameters of the laser by observing the cutting depth of the laser.

In summary, manufacturers can design a new laser cutting machine table by combining the defects of the conventional technology and the technical inspiration of the prior art for different application positions of the CCD.

Disclosure of Invention

The invention aims to solve the technical problem of providing a laser cutting machine for workpiece hole sites, aiming at the defects of the prior art.

The embodiment of the invention provides a laser cutting machine for hole sites of workpieces, which is used for carrying out laser cutting on the workpieces to be cut, wherein the workpieces to be cut are provided with a plurality of positions to be cut with central axes which are symmetrical, the laser cutting machine comprises a rack and a laser cutting machine head arranged above the rack, a positioning jig, a rotary workbench and a camera device are arranged on the rack, the positioning jig is rotatably arranged on the rotary workbench and is provided with a first channel, the rotary workbench is provided with a second channel, the camera device sequentially obtains image data of the lower surface of the workpieces to be cut arranged on the positioning jig through the second channel and the first channel, a control device outputs a rotation control signal according to the image data, the rotary workbench controls the positioning jig to rotate by a certain angle according to the rotation angle information so as to adjust the positions to be cut of the workpieces to be cut, and the control device, the camera device, the rotary workbench, The laser cutting machine head is in communication connection. The beneficial effect of this embodiment does: the laser cutting machine comprises a machine table, a laser cutting head, a camera device, a control device, a rotating workbench, a control device and a control device, wherein the laser cutting head is arranged on the machine table, the control device is used for controlling the laser cutting head and the camera device to be in tracking adjustment, the control device is used for controlling the laser cutting head and the camera device to be in charge of the cutting frequency of the laser cutting head, starting and stopping the laser cutting head and processing image data of the camera device, and the camera device is arranged on the machine table. And the position of the workpiece to be cut is adjusted through rotating the rotary worktable to switch the position to be cut, so that the cutting machine is simple and easy to use, has small processing error, reduces the cost of software and hardware of the machine table, and improves the processing efficiency and reliability.

In some embodiments, the rotary worktable comprises a bracket fixed on the rack, a mounting seat erected on the bracket, a turntable mounted on the mounting seat, and a servo motor mounted on the mounting seat, the mounting seat is provided with the second channel, an output end of the servo motor is in transmission connection with the turntable, and the turntable is fixedly assembled and fixed with the positioning jig. The beneficial effect of this embodiment does: the rotary worktable is simple in structure and easy to use, the turntable is directly subjected to rotation control through the servo motor to adjust the rotation of a workpiece to be cut, so that the cutting position is switched, a second channel is configured on the mounting seat, and the second channel can provide an optical channel to be matched with the camera device to acquire image data of the workpiece to be cut on the positioning jig.

In some embodiments, the rotary worktable is provided with an illuminating device, and the illuminating device is used for shooting and illuminating the lower surface of the workpiece to be cut through the second channel and the first channel in sequence. The beneficial effect of this embodiment does: through the illumination that the configuration lighting device sees through the passageway of making a video recording that comprises second passageway and first passageway and treats the cutting work piece and make a video recording, the composition of passageway of making a video recording can improve illumination brightness with lighting device's illumination focus, and can prevent the interference of external to the light path, can improve illuminating effect wholly, provides the environment basis that obtains clearer image data for camera device.

In some embodiments, the lighting device has a mounting ring with a mounting platform having an inner diameter smaller than the second channel and the first channel, and the mounting platform is mounted with a light emitter. The beneficial effect of this embodiment does: the illuminating device is simple in structure and high in reliability, and the luminous body is assembled on the assembling platform with the inner diameter smaller than the second channel and the first channel, so that a light source of the luminous body can fully reach the shooting surface.

In some embodiments, the rotary disc and the output end are in meshing transmission through the teeth which are respectively provided. The beneficial effect of this embodiment does: the turntable and the output end are in meshed transmission, the gear has the advantages of stable transmission, accurate transmission ratio, reliable work, high efficiency, long service life, large used power, speed and size range and the like, the number or the angle of the rotating teeth is determined according to the number of the positions to be cut, and accurate positioning is realized, so that the structure of the machine table is simplified.

In some embodiments, the bottom surface of the mounting seat has a bottom slot and a front slot arranged on the periphery of the front surface of the mounting seat at the second channel, the side wall of the bottom slot and the side wall of the front slot are communicated with each other in the mounting seat to form an interference channel, the output end is inserted into the bottom slot, the turntable is assembled in the front slot, and the output end is in transmission connection with the turntable through the interference channel. The beneficial effect of this embodiment does: the simple and reliable assembling structure and the structure for realizing transmission connection are provided for the servo motor and the turntable on the mounting seat.

In some embodiments, the turntable comprises a central rotating shaft and a peripheral rotating ring, the central rotating shaft is assembled and fixed on the mounting seat, the peripheral rotating ring is sleeved on the periphery of the central rotating shaft, the peripheral rotating ring is in transmission connection with the servo motor, and the positioning jig is assembled and fixed on the peripheral rotating ring. The beneficial effect of this embodiment does: the assembly structure of the central rotating shaft and the peripheral rotating ring is simple and easy to use, and the reliability is strong.

In some embodiments, the peripheral swivel includes an upper swivel and a lower swivel, the upper swivel is mounted on the upper end of the central rotating shaft, the lower swivel is mounted on the lower end of the central rotating shaft, and the upper swivel and the lower swivel are fixedly mounted to restrain the central rotating shaft and the central rotating shaft between the upper swivel and the lower swivel in a relative rotation manner. The beneficial effect of this embodiment does: the peripheral swivel has simple structure and strong reliability.

In some embodiments, a detection device is configured to collect rotation information of the turntable, and the detection device is in communication with the control device. The beneficial effect of this embodiment does: the rotation information of the rotary table is collected and fed back to the control device through the detection device, so that the control device can accurately control the rotary table, and the rotation control function of the rotary table is improved.

In some embodiments, the support is vertically mounted on the frame, and the combination of the mounting seat, the servo motor and the turntable is mounted on the support with a certain inclination angle with the horizontal plane. The beneficial effect of this embodiment does: the support provides the installation position of an slope and horizontal plane for camera device, servo motor, lighting device have bigger operating space on the support, and dismouting or maintenance on the machine bench are more convenient.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a first overall structural view of a laser cutting machine according to an embodiment of the present invention.

Fig. 2 is a second overall configuration diagram of the laser cutting machine according to the embodiment of the present invention.

Fig. 3 is an enlarged structural view of a portion a in fig. 2.

Fig. 4 is a perspective view of an assembly structure of the rotary table and the positioning jig according to the embodiment of the present invention.

Fig. 5 is a perspective view of a rotary table according to an embodiment of the present invention.

Fig. 6 is a sectional view of the rotary table according to the embodiment of the present invention.

Fig. 7 is an exploded view of the first configuration of the rotary table according to the embodiment of the present invention.

Fig. 8 is an exploded structural view of a rotary table according to an embodiment of the present invention.

Fig. 9 is a perspective view of the mounting base according to the embodiment of the present invention.

Fig. 10 is a structural diagram of a positioning jig for a workpiece to be cut according to an embodiment of the invention.

In the figure, 1, a workpiece to be cut; 2. a position to be cut; 3. a central shaft; 4. a frame; 5. a laser cutting head; 6. positioning a jig; 7. rotating the working table; 8. a camera device; 9. a first channel; 10. a second channel; 11. assembling a plane; 12. an assembly hole; 13. a support; 14. a mounting seat; 15. a turntable; 16. a servo motor; 17. an output end; 18. assembling a plate; 19. a left bracket; 20. a right bracket; 21. an upper mounting portion; 22. a middle mounting part; 23. an output shaft; 24. a rotor; 25. a bottom slot; 26. a front slot; 27. an interference channel; 28. a central rotating shaft; 29. a peripheral swivel; 30. an upper swivel; 31. a lower swivel; 32. a first oil seal ring; 33. a second oil seal ring; 34. an inner ring; 35. a ring L position; 36. an outer sidewall; 37. an illumination device; 38. assembling a ring; 39. assembling a platform; 40. a detection device; 41. and (4) assembling.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting in number, and may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the invention are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1 to 10, a laser cutting machine for a workpiece hole site according to an embodiment of the present invention is used for laser cutting a workpiece 1 to be cut, where the workpiece 1 to be cut has a plurality of positions 2 to be cut with symmetric central axes 3, the workpiece 1 to be cut in this embodiment is a hemispherical shell, and the positions 2 to be cut are four key holes on the shell, and the four key holes are symmetric with respect to the central axes 3. According to the position characteristic of the position 2 to be cut of the embodiment, the invention adopts the central shaft 3 as a rotating shaft to provide rotation for the shell, thereby adjusting the alternative laser cutting of the switching key hole.

Based on the basic conditions of the workpiece 1 to be cut, the laser cutting machine of the embodiment includes a frame 4 and a laser cutting head 5 assembled above the frame 4, a positioning fixture 6, a rotary worktable 7 and a camera device 8 are assembled on the frame 4, the positioning fixture 6 is rotatably assembled on the rotary worktable 7, the positioning fixture 6 has a first channel 9, the rotary worktable 7 has a second channel 10, the camera device 8 sequentially obtains image data of the lower surface of the workpiece 1 to be cut assembled on the positioning fixture 6 through the second channel 10 and the first channel 9, a control device (not shown) outputs a rotation control signal according to the image data, the rotary worktable 7 controls the positioning fixture 6 to rotate by a certain angle according to the rotation angle information to adjust the position 2 to be cut of the workpiece 1 to be cut, the control device and the camera device 8, the rotary worktable 7, The laser cutting head 5 is in communication connection. The laser cutting of the workpiece 1 to be cut with a plurality of symmetrical positions 2 to be cut with a central shaft 3 is realized by arranging the workpiece between a laser cutting head 5 and a camera device 8 and adjusting the position 2 to be cut of the workpiece by a rotary worktable 7, the position of the laser cutting machine head 5 and the position of the camera device 8 of the machine are fixed without tracking adjustment, the control device only needs to be responsible for the cutting frequency of the laser cutting machine head 5 and the camera device 8, start and stop and process the image data of the camera device 8, compared with the prior art and the prior art, the machine platform has the advantages that the manufacturing cost of a mechanical structure required by mechanical position adjustment can be greatly saved, the composition structure of the machine platform is simplified, the occupied space is small, and the maintenance cost is greatly reduced. And the position of the workpiece 1 to be cut is adjusted by rotating the rotary worktable 7 to switch the position 2 to be cut, so that the cutting machine is simple and easy to use, has small machining error, reduces the cost of software and hardware of the worktable, and improves the machining efficiency and reliability. Since there is no need to adopt a complicated mechanical transmission structure such as a manipulator or the like, there is no need for corresponding software system control.

The frame 4 of the embodiment is used for providing an assembly foundation and is provided with an assembly plane 11, an array of assembly holes 12 are arranged on the assembly plane 11, and the rotary worktable 7 can be fixedly assembled in the assembly holes 12 at corresponding positions according to the assembly position 41 and locked.

The laser cutting head 5 of the present embodiment is used for providing a laser beam for cutting, and generally comprises a laser generator, a lens set and a nozzle, wherein the laser generator provides the laser beam according to a set laser frequency, and the laser beam is emitted through the lens set and the nozzle. Or other device capable of producing a controllable laser beam.

As shown in fig. 10, the positioning jig 6 of the present embodiment, which is used for loading and fixing the workpiece 1 to be cut, has an overall hollow shape (the hollow portion is the first passage 9 described above), and has a top surface parallel to the horizontal plane for flush mounting the housing and a bottom surface assembled at a fixed inclination angle compared to the horizontal plane. The workpiece 1 to be cut is locked on the top surface of the positioning jig 6 through a fastener, and the central shaft 3 of the position 2 to be cut and the rotating central shaft of the rotating platform are coaxially kept.

As shown in fig. 4-9, the rotary table 7 of the present embodiment is used for controlling the workpiece 1 to be cut to rotate to switch the position 2 to be cut, and includes a bracket 13 fixed on the frame 4, a mounting seat 14 erected on the bracket 13, a rotary table 15 installed on the mounting seat 14, and a servo motor 16 installed on the mounting seat 14, wherein the mounting seat 14 is configured with the second channel 10, an output end 17 of the servo motor 16 is in transmission connection with the rotary table 15, and the rotary table 15 is fixedly assembled with the positioning fixture 6. The rotary worktable 7 is simple in structure and easy to use, the turntable 15 is directly rotated by the servo motor 16 to control the rotation of the workpiece 1 to be cut so as to adjust the switching of the position 2 to be cut, and the mounting seat 14 is provided with the second channel 10, and the second channel 10 can provide an optical path to match with the camera device 8 to acquire image data of the workpiece 1 to be cut on the positioning jig 6. The servo motor 16 provides a precise rotation control output in the present embodiment. In this embodiment, the servomotor 16 is vertically mounted on the mounting base 14, and the imaging center of the imaging device 8 is mounted on the stand 13 in parallel with the axis of the servomotor 16, and the imaging center of the imaging device 8 is as coaxial as possible with the center axis 3 and the rotation center of the turntable 15.

The bracket 13 of the present embodiment is composed of a mounting plate 18 mounted on the frame 4 and a left bracket 19 and a right bracket 20 mounted on the mounting plate 18 in an opposite and vertical manner, an upper mounting portion 21 having the same inclination angle on the top surface of the left bracket 19 and the right bracket 20, respectively, and a symmetrical middle mounting portion 22 in the middle of the left bracket 19 and the right bracket 20, respectively, the upper mounting portion 21 being used for mounting the rotary table 7, and the middle mounting portion 22 being used for mounting the image pickup device 8. Because of the inclination angle of the upper mounting part 21, the rotary worktable 7 is also integrally arranged in an inclination angle after being assembled, and the rotary worktable 7 and the bottom surface of the positioning jig 6 are mutually parallel and are assembled in place. Thanks to the upper mounting portion 21 of the inclination angle, the swivel table 7 has a sufficient operating space between the left bracket 19 and the right bracket 20, and it becomes more convenient for an operator to attach and detach and inspect the swivel table 7 and the image pickup device 8 from the sufficient operating space.

In the present embodiment, in order to enable stable and reliable transmission between the turntable 15 and the servo motor 16, the turntable 15 and the output end 17 are driven by meshing teeth provided in the turntable and the output end. The rotary table 15 and the output end 17 are in meshed transmission, the gear has the advantages of stable transmission, accurate transmission ratio, reliable work, high efficiency, long service life, large used power, speed and size range and the like, the number or the angle of the rotating teeth is determined according to the number of the to-be-cut positions 2, and therefore accurate positioning is achieved, and the structure of the machine table is simplified. More specifically, the output end 17 includes an output shaft 23 of the servo motor 16 and a rotor 24 that is mounted on the output shaft 23 and coaxially outputs, and teeth are disposed at a distal end of the rotor 24. The rotor 24 is used as an extension of the output shaft 23 to compensate the thickness of the mounting seat 14 and is in transmission connection with the rotary table 15, the output shaft 23 is generally used as a standard component with a fixed size ratio, so the rotor 24 is used as an output continuation to be used as an output end 17 of the rotary power of the servo motor 16 for external output.

As shown in fig. 6-9, a simple and reliable assembly structure for the servo motor 16 and the turntable 15 on the mounting seat 14 and a structure for realizing transmission connection are provided. The bottom surface of the mounting seat 14 of the present embodiment has a bottom slot 25 and a front slot 26 disposed on the periphery of the second channel 10 on the front surface of the mounting seat 14, an interference channel 27 is formed between the sidewall of the bottom slot 25 and the sidewall of the front slot 26 in the mounting seat 14, the output end 17 is inserted into the bottom slot 25, the turntable 15 is assembled in the front slot 26, and the output end 17 is in transmission connection with the turntable 15 through the interference channel 27. The central axes 3 of the bottom slot 25 and the front slot 26 are parallel to each other.

In this embodiment, the turntable 15 includes a central rotating shaft 28 and a peripheral rotating ring 29, the central rotating shaft 28 is assembled and fixed on the mounting base 14, the peripheral rotating ring 29 is sleeved on the periphery of the central rotating shaft 28, the peripheral rotating ring 29 is in transmission connection with the servo motor 16, and the positioning fixture 6 is assembled and fixed on the peripheral rotating ring 29. The assembly structure of the central rotating shaft 28 and the peripheral rotating ring 29 is simple and easy to use and has strong reliability. More specifically, the peripheral swivel 29 includes an upper swivel 30 and a lower swivel 31, the upper swivel 30 is mounted on the upper end of the central rotating shaft 28, the lower swivel 31 is mounted on the lower end of the central rotating shaft 28, and the upper swivel 30 and the lower swivel 31 are fixed to each other so as to rotatably limit the central rotating shaft 28 between the upper swivel 30 and the lower swivel 31. The peripheral swivel 29 has a simple structure and high reliability. After the central rotating shaft 28 is sleeved and clamped and assembled in place by the upper rotating ring 30 and the lower rotating ring 31 to form the rotating disc 15, the rotating disc is embedded in the front slotted hole 26, and the bottom surface of the mounting seat 14 passes through the mounting seat 14 by screws to be locked with the central rotating shaft 28. As shown in fig. 5 to 8, in order to enhance the rotation performance between the central rotating shaft 28 and the peripheral rotating ring 29 and between the peripheral rotating ring 29 and the mounting seat 14 in the rotating disk 15, a first oil seal ring 32 is disposed between the central rotating shaft 28 and the peripheral rotating ring 29, and a second oil seal ring 33 is disposed between the peripheral rotating ring 29 and the mounting seat 14, so that the rotation of the rotating disk 15 is more smooth, stable and reliable. The first oil seal ring 32 is located between an annular L-shaped portion 35 formed by the top surface of an inner ring 34 sleeved on the peripheral rotating ring 29 and the central rotating shaft 28 and extending circumferentially and an outer side wall 36 of the central rotating shaft 28. The positioning fixture 6 is fixed on the peripheral swivel 29, specifically, the upper end surface of the upper swivel 30, by screws.

In the present embodiment, in order to improve the sharpness of the image data, it is necessary to prepare the CCD system for configuring the imaging device 8 with a stable light source, and therefore, the present embodiment is provided with the illumination device 37 on the rotary table 7, and the illumination device 37 is used for imaging and illuminating the lower surface of the workpiece 1 to be cut through the second path 10 and the first path 9 in sequence. Through the illumination light that the illumination device 37 made up through the passageway of making a video recording of being constituteed by second passageway 10 and first passageway 9 and treating cutting work piece 1 and make a video recording, the illumination light gathering that the passageway of making a video recording constitutes can be with illumination device 37 improves illumination brightness, and can prevent the interference of external to the light path, can improve the illuminating effect wholly, provides the environment basis that obtains clearer image data for camera device 8. More specifically, the lighting device 37 of the present embodiment has an assembly ring 38, the assembly ring 38 has an assembly platform 39 with an inner diameter smaller than the second channel 10 and the first channel 9, and the assembly platform 39 is equipped with a light emitting body, in the present embodiment, the light emitting body is an annular light emitting body, so that the shadow is reduced as much as possible in the image acquisition process. The lighting device 37 has a simple structure and high reliability, and the light emitting body is assembled on the assembling platform 39 with the inner diameter smaller than the second channel 10 and the first channel 9, so that the light source of the light emitting body can fully reach the shooting surface.

In this embodiment, a detection device 40 is configured to collect rotation information of the turntable 15, and the detection device 40 is in communication with the control device. The rotation information of the turntable 15 is collected and fed back to the control device through the detection device 40, so that the control device can accurately control the turntable 15, and the rotation control function of the rotary worktable 7 is improved. Specifically, the detecting device 40 employs a photoelectric sensor, and a blocking piece (as shown in fig. 5, an assembling position 41 of the blocking piece) is assembled on the peripheral rotating ring 29 of the rotating disc 15, when the blocking piece enters the photoelectric sensor, the detection can be performed, in an initial state, the assembling position of the blocking piece and the arrangement of the photoelectric sensor are preset and are related to the to-be-cut position 2, for example, in the present embodiment, the housing has four key holes, the four key holes are distributed at equal angular intervals around the central axis 3, and the interval angle is one fourth of 360 degrees, that is, 90 degrees, so that the included angle between the photoelectric sensor and the blocking piece with respect to the rotation center of the rotating disc 15 is also 90 degrees, so that the rotating disc 15 drives the blocking piece to rotate 90 degrees and reach the photoelectric sensor to be detected, and feeds back the detection signal to the control device, the control device determines that the to-be-cut position 2 is switched to be-cut in place according to the detection signal, the cutting operation can be continued, so that automatic operation linkage is realized.

The working principle of the embodiment of the invention is as follows: firstly, a workpiece 1 to be cut is manually fixed on a positioning jig 6, a machine table is started, an illuminating device 37 is started to illuminate the lower surface of the workpiece 1 to be cut, a camera device 8 is started to acquire image data of the lower surface of the workpiece 1 to be cut and feed the image data back to a control device, the control device confirms whether a region to be cut of the workpiece 1 to be cut is located at a preset spatial position according to the image data, after no error is confirmed, the control device controls a laser cutting head 5 to start laser emission, the laser cuts the workpiece 1 to be cut, after the cutting of a single position 2 to be cut is completed, the control device controls the laser cutting head 5 to be closed, the control device outputs a rotation control signal, a servo motor 16 drives a rotor 24 to rotate according to the rotation control signal, the rotor 24 synchronously drives a turntable 15 to rotate when rotating, the turntable 15 synchronously drives the positioning jig 6 to rotate, therefore, the hole positions which are cut are sent out of the cutting station (the falling point of the laser on the surface of the workpiece 1 to be cut is the cutting station), the position 2 to be cut enters the cutting station to be cut, the control device controls the laser cutting machine head 5 to start after the position is in place, and the operation is repeated, so that the automatic laser alternate cutting operation is realized.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The laser cutting machine for the hole sites of the workpieces is characterized by being used for carrying out laser cutting on a workpiece (1) to be cut, wherein the workpiece (1) to be cut is provided with a plurality of cutting positions (2) with symmetrical central shafts (3), the laser cutting machine comprises a frame (4) and a laser cutting machine head (5) assembled above the frame (4), a positioning jig (6), a rotary workbench (7) and a camera device (8) are assembled on the frame (4), the positioning jig (6) is rotatably assembled on the rotary workbench (7), the positioning jig (6) is provided with a first channel (9), the rotary workbench (7) is provided with a second channel (10), the camera device (8) sequentially penetrates through the second channel (10) and the first channel (9) to obtain image data of the lower surface of the workpiece (1) to be cut assembled on the positioning jig (6), a control device outputs a rotation control signal according to the image data, the rotary worktable (7) controls the positioning jig (6) to rotate for a certain angle according to the rotation angle information so as to adjust the position (2) to be cut of the workpiece (1) to be cut, and the control device is in communication connection with the camera device (8), the rotary worktable (7) and the laser cutting machine head (5).

2. The laser cutting machine for the hole sites of the workpieces as recited in claim 1, wherein the rotary table (7) comprises a bracket (13) fixed on the frame (4), a mounting seat (14) erected on the bracket (13), a rotary table (15) installed on the mounting seat (14), and a servo motor (16) installed on the mounting seat (14), the mounting seat (14) is configured with the second channel (10), an output end (17) of the servo motor (16) is in transmission connection with the rotary table (15), and the rotary table (15) is fixedly assembled with the positioning jig (6).

3. A machine for laser cutting of holes on workpieces according to claim 2, characterized in that said rotary table (15) and said output end (17) are driven by respective tooth engagement.

4. A laser cutting machine for workpiece hole sites as claimed in claim 2, wherein the bottom surface of the mounting seat (14) is provided with a bottom slot (25) and a front slot (26) arranged on the second channel (10) at the periphery of the front surface of the mounting seat (14), the side wall of the bottom slot (25) and the side wall of the front slot (26) are communicated with an interference channel (27) in the mounting seat (14), the output end (17) is inserted in the bottom slot (25), the rotary table (15) is assembled in the front slot (26), and the output end (17) is in transmission connection with the rotary table (15) through the interference channel (27).

5. The laser cutting machine for the hole sites on the workpieces as recited in claim 2, wherein said rotary table (15) comprises a central rotary shaft (28) and a peripheral rotary ring (29), said central rotary shaft (28) is assembled and fixed on the mounting seat (14), said peripheral rotary ring (29) is sleeved on the periphery of said central rotary shaft (28), said peripheral rotary ring (29) is in transmission connection with said servo motor (16), and said positioning fixture (6) is assembled and fixed on said peripheral rotary ring (29).

6. A laser cutting machine for hole sites on workpieces as claimed in claim 5, characterized in that said peripheral swivel (29) comprises an upper swivel (30) and a lower swivel (31), said upper swivel (30) being mounted on the upper end of said central swivel (28), said lower swivel (31) being mounted on the lower end of said central swivel (28), said upper swivel (30) and said lower swivel (31) being fixedly mounted to confine said central swivel (28) and relative rotation between said upper swivel (30) and said lower swivel (31).

7. A laser cutting machine for workpiece hole sites as claimed in claim 2, wherein the support (13) is vertically assembled on the frame (4), and the assembly of the mounting seat (14), the servo motor (16) and the rotary table (15) is assembled on the support (13) with a certain angle with the horizontal plane.

8. A laser cutting machine for hole sites on workpieces as claimed in claim 2, characterized in that a detection device (40) is provided for collecting rotation information of said rotary table (15), said detection device (40) being in communication with said control device.

9. A laser cutting machine for hole sites on workpieces as claimed in claim 1, wherein said rotary table (7) is equipped with an illumination device (37), said illumination device (37) is used for shooting and illuminating the lower surface of the workpiece (1) to be cut through said second channel (10) and said first channel (9) in sequence.

10. A machine for cutting holes on workpieces as claimed in claim 9, wherein said lighting device (37) has a mounting ring (38), said mounting ring (38) has a mounting platform (39) with an inner diameter smaller than said second channel (10) and said first channel (9), said mounting platform (39) is mounted with a light emitter.

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