CN212793554U - Coaxial visual marking device - Google Patents

Abstract

The utility model discloses a coaxial visual marking device, which comprises a visual module, wherein the visual module comprises a marking module and an image module, and the image module and the marking module are optically superposed; the marking device comprises a marking module, an image module and a laser marking device, wherein the marking module and the external laser marking device are arranged oppositely to form an optical channel between the marking module and the image module, after the laser marking device emits laser, the laser irradiates on a marked piece along the optical channel, and meanwhile, the image module acquires visible light reflected by the marked piece. After vision module and laser marking device make up the use, the laser that laser marking device launched passes behind the mark module of beating, shines on being beaten the mark piece, simultaneously, on image module and beat the basis of mark module optical coincidence, the image module can acquire the image information of being beaten the mark piece, realizes being beaten the mark piece when beating the mark, can obtain by the image module in real time and beat the mark information, and the image module has increased the visual range of beating the mark, conveniently is beaten the visual of mark by the mark piece.

Description

Coaxial visual marking device

Technical Field

The utility model belongs to the laser marking field, in particular to mark device is beaten to vision.

Background

At present, many electronic products need to be marked by laser, the marking requirement is larger and larger along with the laser, the requirement of a user on a laser marking machine is larger and larger, the requirement on the laser marking machine is higher and higher, and if the laser marking machine with a laser vision system is adopted for operation in production, the laser marking machine with the laser vision system can realize automatic positioning, automatic focusing and automatic detection, so that more user identifications are obtained.

The laser visual marking machine is characterized in that an industrial camera is adopted to intelligently identify the position of a processed product, so that the laser accurate marking equipment is guided, a laser beam irradiates the surface of a workpiece through the swinging of a scanning lens, and generates a physical or chemical reaction with the workpiece, so that the surface of the workpiece is heated and volatilized to generate a trace, and the purpose of marking is achieved.

The traditional laser marking device has no visual positioning function, and a high-requirement laser marking system is generally provided with a visual system, including a paraxial CCD system, a coaxial CCD system and the like. The visual light path and the laser light path of the paraxial CCD system are branched in structure, and the marking needs to be divided into three actions of shooting, positioning and moving a galvanometer, so that the vibration, the displacement and the processing deviation of micro processing can be caused, and meanwhile, the processing speed is low, and the processing precision can be influenced. In addition, the laser marking device of the paraxial CCD system has a complex structure and occupies a large space. In another coaxial CCD system, laser is generally irradiated onto a workpiece through a CCD module, a galvanometer and a field lens, limited by the size of the scanning lens of the galvanometer, and limited in imaging size, generally only about 10 mm.

Patent CN201720340197.2 discloses a precise positioning laser flight marking machine based on paraxial imaging dynamic recognition, which comprises a positioning vision system, a marking system, a detection vision system, a control device, a conveying belt device and a display, wherein the conveying belt device comprises a conveying wheel fixedly connected to a transmission mechanism of a device body, a belt arranged on the conveying wheel in a surrounding manner, and an aluminum profile shell wrapping the belt; the display, the positioning vision system, the laser marking system and the detection vision system are sequentially connected with the control equipment along the transmission direction of the conveyer belt device; the utility model reduces the offset generated by the conveyer belt device in the transportation process by arranging the conveyer belt device combined with the aluminum section bar; a positioning vision system is arranged at the front stage of the marking system, and a detection vision system is arranged at the rear stage of the marking system, so that the coordinates caused by the speed variable of the conveying system are corrected by accurate operation of the moving speed of a product. But the vision light path and the laser light path in the above-mentioned utility model are branched in the structure, and the structure is complicated, still can influence the machining precision.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a mark device is beaten to coaxial vision, the device combines vision module and laser marking machine, and the combination integration is a whole, and the vision module is installed in the side of laser marking machine laser instrument, and the original laser marking machine's of unmanned change mechanical structure does not influence the overall arrangement of original laser marking machine, reduces the cross design between the equipment, makes things convenient for the change of old equipment.

Another object of the utility model is to provide a mark device is beaten to coaxial vision, the device make the mirror that shakes processing face and CCD image sensor's the visual field face coincide in optics, enlarge visual scope, promote positioning accuracy, solve the blurred problem in formation of image edge.

Another object of the utility model is to provide a mark device is beaten to coaxial vision, the device simple structure, convenient equipment is used.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a coaxial visual marking device is characterized by comprising a visual module, wherein the visual module comprises a marking module and an image module, and the image module and the marking module are optically superposed; the marking device comprises a marking module, an image module and a laser marking device, wherein the marking module and the external laser marking device are arranged oppositely to form an optical channel between the marking module and the image module, after the laser marking device emits laser, the laser irradiates on a marked piece along the optical channel, and meanwhile, the image module acquires visible light reflected by the marked piece. After the visual module and the laser marking device are combined for use, laser emitted by the laser marking device penetrates through the marking module and then irradiates on a marked piece, meanwhile, on the basis of optical coincidence of the image module and the marking module, the image module can acquire image information of the marked piece, so that the marking information can be acquired by the image module in real time when the marked piece is marked, the visual range of marking is enlarged by the image module, and the marked piece is convenient to visualize; in addition, the visual module and the laser marking device do not need to be arranged on the component in a cross mode in the combination process, so that the two devices are arranged in a mutual contrast mode, the mechanical structure of the original laser marking machine is not changed artificially, the layout of the original laser marking machine is not affected, and old equipment is convenient to replace.

Further, the image module includes half anti-half mirror and CCD image sensor, half anti-half mirror is reflection laser and sees through visible light, after laser passed the mark module, shine on being marked the piece after the reflection of half anti-half mirror, half anti-half mirror will be marked the visible light on the piece and see through to CCD image sensor simultaneously. Wherein, through the semi-reflecting semi-transparent mirror with laser reflection to by on the mark piece, then utilize this semi-reflecting semi-transparent mirror to see through the mode of visible light, will be marked the mark condition on the piece and see through to CCD image sensor with the form of visible light in, realize the optics coincidence of image module and mark module.

Further, the plane of the semi-reflective and semi-transparent mirror and the marking module are 45 degrees, and the CCD image sensor, the semi-reflective and semi-transparent mirror and the marked piece are coaxially arranged. In the structural design, the CCD image sensor, the semi-reflecting and semi-transmitting mirror and the marked piece are arranged to be coaxial, the marking condition on the marked piece can be directly obtained by the CCD image sensor by utilizing the linear propagation of light, and the marking module and the marked piece can form a right-angle structure taking the semi-reflecting and semi-transmitting mirror as a right-angle center through the arrangement of 45-degree angles of the semi-reflecting and semi-transmitting mirror and the marking module, so that the marked piece and the semi-reflecting and semi-transmitting mirror are positioned on the same straight line; in the structure, laser is vertically marked on the marked part, and the CCD image sensor can more clearly acquire the marking condition on the marked part in the direction vertical to the marked part.

Further, the marking module is arranged on the left side or the right side of the semi-reflecting and semi-transparent mirror. Wherein beat the mark module and set up the left side and the right side homoenergetic that half reflect the semi-transparent mirror and realize good mark and the purpose of visual observation, as long as guarantee module up to standard and by the mark piece can on the position with the normal symmetry of half reflect the semi-transparent mirror. And the 45-degree included angle between the semi-reflecting and semi-transparent mirror and the marking module is also used for ensuring that the CCD image sensor can acquire the clearest marking image information.

Further, the image module still includes the light source, the light source setting is between half reflection and half mirror and the target of being beaten. The light source is used for increasing the brightness of the surface of the marked piece, so that the CCD image sensor can acquire clear marking image information.

Further, the light source includes annular LED lamp plate. The annular LED lamp panel surrounds the marked piece.

Further, mark the module including vibrating mirror and field lens, vibrating mirror and field lens set up side by side, just laser shines on the half-reflection half-transparent mirror after passing vibrating mirror, field lens in proper order.

Furthermore, the vision module also comprises a connecting shell used for wrapping and fixing the marking module and the image module, the connecting shell comprises a main support plate, a fixing clamp, a locking block, a laser protection plate, a lens baffle, a light source fixing block and a CCD fixing block, and the galvanometer and the field lens are arranged in a space formed by the main support plate, the fixing clamp and the locking block in a surrounding manner; the semi-reflecting and semi-transparent mirror is arranged in a space formed by the main supporting plate, the laser protecting plate and the lens baffle; the light source is fixedly connected with the main supporting plate through the light source fixing block; the CCD image sensor is fixedly connected with the main supporting plate through the CCD fixing block.

Furthermore, the galvanometer and the field lens are sequentially arranged on the right side below the main support plate, the fixing clamp is arranged on the right side of the galvanometer, the locking block is arranged on the lower sides of the galvanometer and the field lens, and the fixing clamp and the locking block are detachably connected; the semi-reflecting and semi-transmitting mirror is arranged on the left side below the main support plate, the laser protection plate is arranged on the left side of the semi-reflecting and semi-transmitting mirror, the number of the lens baffles is two, the two lens baffles are respectively arranged on the front side and the rear side of the semi-reflecting and semi-transmitting mirror, light passing channels are formed on the right side of the semi-reflecting and semi-transmitting mirror and the left side of the field lens, and the lens baffles, the laser protection plate and the main support plate are all detachably connected; the light source is arranged below the semi-reflecting and semi-transmitting lens, and the light source fixing block covers the outer side of the lens baffle; the CCD image sensor is arranged above the main supporting plate, and the main supporting plate is provided with a light passing channel at the position where the CCD image sensor is opposite to the semi-reflecting and semi-transmitting lens. The fixing clamp and the locking block ensure the stability of the installation positions of the galvanometer and the field lens, and the locking block supports the galvanometer and the field lens; the laser protection plate and the lens baffle can powerfully shield visible light which is not needed by the half-reflecting and half-transmitting lens, and light interference in other directions of the half-reflecting and half-transmitting lens is avoided. The main supporting plate is fixed on a machine tool or other fixed parts, so that the device can be used. After the main supporting plate is fixed with the laser marking device, the combined use of the visual module and the laser marking device can be realized.

The utility model discloses a vision module uses with the combination of laser marking device, and the laser that laser marking device launched passes behind the marking module, shines on the target piece of being marked, realizes the mark of the target piece of being marked, simultaneously, on the basis of image module with mark the optical coincidence of module, the image module can acquire the image information of the target piece of being marked, realizes that the target piece of being marked can acquire by the image module in real time and beat the mark information when beating, the image module has increased the visual range of beating the mark, conveniently beat the visual of mark by the target piece; in addition, the visual module and the laser marking device do not need to be arranged on the component in a cross mode in the combination process, so that the two devices are arranged in a mutual contrast mode, the mechanical structure of the original laser marking machine is not changed artificially, the layout of the original laser marking machine is not affected, and old equipment is convenient to replace.

Drawings

Fig. 1 is a perspective view of a first viewing angle of the present invention.

Fig. 2 is a perspective view of a second viewing angle of the present invention.

Fig. 3 is a front view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail 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.

Referring to fig. 1-3, the coaxial visual marking device of the present invention comprises a visual module, wherein the visual module comprises a marking module 1 and an image module 2, and the image module 2 and the marking module 1 are optically overlapped; the marking device comprises a marking module 1, an image module 2 and a laser marking device (not shown), wherein the marking module 1 and the external laser marking device are arranged oppositely, an optical channel 10 is formed between the marking module 1 and the image module 2, after the laser marking device emits laser, the laser irradiates on a marked piece along the optical channel 10, and meanwhile, the image module 2 acquires visible light reflected by the marked piece. After the visual module and the laser marking device are combined for use, laser emitted by the laser marking device penetrates through the marking module 1 and then irradiates on a marked piece, meanwhile, on the basis that the image module 2 and the marking module 1 are optically superposed, the image module 2 can acquire image information of the marked piece, so that the marking information can be acquired by the image module 2 in real time when the marked piece is marked, the image module 2 enlarges the visual range of marking, and the marking of the marked piece is facilitated to be visualized; in addition, the visual module and the laser marking device do not need to be arranged on the component in a cross mode in the combination process, so that the two devices are arranged in a mutual contrast mode, the mechanical structure of the original laser marking machine is not changed artificially, the layout of the original laser marking machine is not affected, and old equipment is convenient to replace.

Wherein, image module 2 includes half reflection and half mirror 21 and CCD image sensor 22, half reflection and half mirror 21 is reflection laser and sees through visible light, laser passes and marks behind the module 1, shines on being marked the piece after the reflection of half reflection and half mirror 21, and half reflection and half mirror 21 will be marked the visible light on the piece and see through to CCD image sensor 22 on simultaneously. Wherein, reflect laser to on the marked piece through the half-reflecting and half-transmitting mirror 21, then utilize this half-reflecting and half-transmitting mirror 21 to pass through the mode of visible light, the marking condition that will be marked on the piece is seen through to CCD image sensor 22 with the form of visible light, realize image module 2 and the optics coincidence of marking module 1.

Wherein, the plane of the half-reflecting and half-transmitting mirror 21 is 45 degrees with the marking module 1, and the CCD image sensor 22, the half-reflecting and half-transmitting mirror 21 and the marked piece are coaxially arranged. In the structural design, the CCD image sensor 22, the semi-reflecting and semi-transparent mirror 21 and the marked piece are arranged to be coaxial, the marking condition on the marked piece can be directly obtained by the CCD image sensor 22 by utilizing the linear propagation of light, and the marking module 1 and the marked piece can form a right-angle structure taking the semi-reflecting and semi-transparent mirror 21 as a right-angle center through the arrangement of 45-degree angles of the semi-reflecting and semi-transparent mirror 21 and the marking module 1, so that the marked piece and the semi-reflecting and semi-transparent mirror 21 are positioned on the same straight line; in the structure, laser is vertically marked on the marked piece, and the CCD image sensor 22 can more clearly acquire the marking condition on the marked piece in the direction vertical to the marked piece.

Wherein, the marking module 1 is arranged on the left side or the right side of the half-reflecting and half-transmitting mirror 21. Wherein beat the target module 1 and set up the left side and the right side homoenergetic that half reflect the semi-transparent mirror 21 and realize good target and the purpose of visual observation, as long as guarantee to reach standard the module with beat on the position with the normal symmetry of half reflect the semi-transparent mirror 21 by the mark piece can. The 45-degree included angle between the semi-reflecting and semi-transparent mirror 21 and the marking module 1 is also used for ensuring that the CCD image sensor 22 can acquire the clearest marking image information.

The image module 2 further comprises a light source 23, and the light source 23 is arranged between the half-reflecting and half-transmitting mirror 21 and the marked object. The light source 23 is used for increasing the brightness of the surface of the marked object, so that the CCD image sensor 22 can acquire clear marking image information.

Wherein, the light source 23 includes an annular LED lamp panel 231. The annular LED lamp panel 231 surrounds above the marked member.

Wherein, mark module 1 including shake mirror 11 and field lens 12, shake mirror 11 and field lens 12 and set up side by side, just laser shines on half-reflecting semi-transparent mirror 21 after passing shake mirror 11, field lens 12 in proper order.

The visual module further comprises a connecting shell 3 used for wrapping and fixing the marking module 1 and the image module 2, wherein the connecting shell 3 comprises a main supporting plate 31, a fixing clamp 32, a locking block 33, a laser protecting plate 34, a lens baffle 35, a light source fixing block 36 and a CCD fixing block 37, and the galvanometer 11 and the field lens 12 are arranged in a space formed by the main supporting plate 31, the fixing clamp 32 and the locking block 33 in a surrounding mode; the half-reflecting and half-transmitting mirror 21 is arranged in a space formed by the main supporting plate 31, the laser protecting plate 34 and the lens baffle 35; the light source 23 is fixedly connected with the main supporting plate 31 through a light source fixing block 36; the CCD image sensor 22 is fixedly connected with the main supporting plate 31 through a CCD fixing block 37.

The galvanometer 11 and the field lens 12 are sequentially arranged on the right side below the main support plate 31, the fixing clamp 32 is arranged on the right side of the galvanometer 11, the locking block 33 is arranged on the lower sides of the galvanometer 11 and the field lens 12, and the fixing clamp 32 and the locking block 33 are detachably connected; the semi-reflecting and semi-transparent mirror 21 is arranged on the left side below the main support plate 31, the laser protection plate 34 is arranged on the left side of the semi-reflecting and semi-transparent mirror 21, the number of the lens baffles 35 is two, the two lens baffles 35 are respectively arranged on the front side and the rear side of the semi-reflecting and semi-transparent mirror 21, light passing channels are formed on the right side of the semi-reflecting and semi-transparent mirror 21 and the left side of the field lens 12, and the lens baffles 35, the laser protection plate 34 and the main support plate 31 are all detachably connected; the light source 23 is arranged below the half-reflecting and half-transmitting mirror 21, and the light source fixing block 36 covers the outer side of the lens baffle 35; the CCD image sensor 22 is arranged above the main support plate 31, and the main support plate 31 is provided with a light passing channel at the position where the CCD image sensor 22 is opposite to the half-reflecting and half-transmitting mirror 21. The fixing clamp 32 and the locking block 33 ensure the stability of the installation positions of the galvanometer 11 and the field lens 12, and the locking block 33 supports the galvanometer 11 and the field lens 12; the laser protection plate 34 and the lens baffle 35 can powerfully shield visible light which is not needed by the half-reflecting and half-transmitting mirror 21, and light interference in other directions of the half-reflecting and half-transmitting mirror 21 is avoided. The main support plate 31 is fixed on a machine tool or other fixed parts to realize the use of the device. After the main supporting plate 31 is fixed with the laser marking device, the combined use of the vision module and the laser marking device can be realized.

The above description is intended to be illustrative of the present invention and is not intended to be limiting, and all such modifications, equivalents and improvements as fall within the spirit and scope of the invention are intended to be included therein.

Claims (9)

1. A coaxial visual marking device is characterized by comprising a visual module, wherein the visual module comprises a marking module and an image module, and the image module and the marking module are optically superposed; the marking device comprises a marking module, an image module and a laser marking device, wherein the marking module and the external laser marking device are arranged oppositely to form an optical channel between the marking module and the image module, after the laser marking device emits laser, the laser irradiates on a marked piece along the optical channel, and meanwhile, the image module acquires visible light reflected by the marked piece.

2. The coaxial visual marking device as claimed in claim 1, wherein the image module comprises a semi-reflective and semi-transparent mirror and a CCD image sensor, the semi-reflective and semi-transparent mirror reflects laser light and transmits visible light, the laser light passes through the marking module and then is reflected by the semi-reflective and semi-transparent mirror to irradiate on the marked piece, and the semi-reflective and semi-transparent mirror transmits the visible light on the marked piece to the CCD image sensor.

3. The coaxial visual marking device as claimed in claim 2, wherein the plane of the semi-reflective and semi-transparent mirror is 45 ° to the marking module, and the CCD image sensor, the semi-reflective and semi-transparent mirror and the marked object are coaxially arranged.

4. The coaxial visual marking device as recited in claim 3, wherein the marking module is disposed on either the left or right side of the transflective mirror.

5. The coaxial visual marking device of claim 3, wherein the image module further comprises a light source disposed between the transflective mirror and the marked object.

6. The coaxial visual marking device of claim 5, wherein the light source comprises an annular LED lamp panel.

7. The coaxial visual marking device as claimed in claim 5, wherein the marking module comprises a vibrating mirror and a field lens, the vibrating mirror and the field lens are arranged side by side, and the laser sequentially passes through the vibrating mirror and the field lens and then irradiates on the semi-reflecting and semi-transparent mirror.

8. The coaxial visual marking device as claimed in claim 7, wherein the visual module further comprises a connecting housing for wrapping and fixing the marking module and the image module, the connecting housing comprises a main supporting plate, a fixing clamp, a locking block, a laser protection plate, a lens baffle, a light source fixing block and a CCD fixing block, and the galvanometer and the field lens are arranged in a space defined by the main supporting plate, the fixing clamp and the locking block; the semi-reflecting and semi-transparent mirror is arranged in a space formed by the main supporting plate, the laser protecting plate and the lens baffle; the light source is fixedly connected with the main supporting plate through the light source fixing block; the CCD image sensor is fixedly connected with the main supporting plate through the CCD fixing block.

9. The coaxial visual marking device as claimed in claim 8, wherein the galvanometer and the field lens are sequentially arranged on the right side below the main supporting plate, the fixing clamp is arranged on the right side of the galvanometer, the locking block is arranged on the lower sides of the galvanometer and the field lens, and the fixing clamp and the locking block are detachably connected; the semi-reflecting and semi-transmitting mirror is arranged on the left side below the main support plate, the laser protection plate is arranged on the left side of the semi-reflecting and semi-transmitting mirror, the number of the lens baffles is two, the two lens baffles are respectively arranged on the front side and the rear side of the semi-reflecting and semi-transmitting mirror, light passing channels are formed on the right side of the semi-reflecting and semi-transmitting mirror and the left side of the field lens, and the lens baffles, the laser protection plate and the main support plate are all detachably connected; the light source is arranged below the semi-reflecting and semi-transmitting lens, and the light source fixing block covers the outer side of the lens baffle; the CCD image sensor is arranged above the main supporting plate, and the main supporting plate is provided with a light passing channel at the position where the CCD image sensor is opposite to the semi-reflecting and semi-transmitting lens.

Images