Coaxial vision module

Abstract

The utility model relates to the technical field of laser processing systems, in particular to a coaxial visual module which comprises a die holder used for being connected with a laser galvanometer, a visual camera is fixedly installed on the top of the die holder, two installation plates are fixed to the die holder respectively, the outer ends of the installation plates are rotationally connected with a mirror holder, and the mirror holder is connected with a laser galvanometer. The driving assembly is used for adjusting the angle of the mirror base, convenience and stability in the angle adjusting process of the reflector can be effectively improved, the driving assembly has a locking function, and in the working state, the angle of the reflector can be adjusted through the driving assembly, so that the angle of the reflector can be adjusted conveniently, and the angle of the reflector can be adjusted conveniently. According to the lamp, the position of the lamp can be fixed, the problem that after adjustment, the angle of the reflector deviates is solved, the stability in the using process is ensured, the lamp is connected with the lamp base through the locking mechanism, and when the lamp is damaged, the lamp can be conveniently disassembled through the locking mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing systems, in particular to a coaxial vision module. Background Art

[0002] The visual positioning system is one of the key technologies for laser precision processing. The visual positioning system can automatically locate the processing object, correct the object to the correct processing position, detect the shape, surface defects, and size of the product, classify and position the product for processing, and improve the processing speed and accuracy. Therefore, the visual positioning system plays a vital role in the accuracy of laser processing.

[0003] The existing coaxial vision module uses two reflectors to reflect the light from the laser galvanometer and the lamp. At the same time, the visual unit is located above and is coaxial with the reflected light of the laser galvanometer. The specific structure can refer to the coaxial visual positioning laser scribing processing head disclosed in the prior art Chinese patent announcement number "CN108311793A". It includes a laser galvanometer, a first reflective lens, a first focusing lens, a second reflective lens and a visual camera; the first reflective lens and the light path of the laser galvanometer are at an angle of 45 degrees, and the laser generated by the laser galvanometer is totally reflected by the first reflective lens and then emitted downward along the main optical axis of the first focusing lens. The main optical axis of the first focusing lens is coaxial with the optical axis of the visual camera, and the first reflective lens and the second reflective lens are cross-distributed with each other.

[0004] Since the angle of the reflector needs to be adjusted during the actual assembly process, the prior art generally uses bolt fixing for adjustment. This method not only has low adjustment efficiency, but also the position of the reflector is prone to deviation during the bolt fixing process, resulting in poor adjustment accuracy. Based on this, in order to solve this problem, we propose a coaxial vision module. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art of adjusting by bolt fixing and low adjustment efficiency, and proposes a coaxial vision module.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A coaxial vision module is designed, comprising a mold base for connecting a laser galvanometer, a visual camera is fixedly mounted on the top of the mold base, two mounting plates are respectively fixed on the mold base, a mirror base is rotatably connected to the outer end of the mounting plate, a reflector located inside the mold base is fixed on the inner side of the mirror base, and a driving component for driving the mirror base to rotate is also arranged on the mounting plate;

[0008] It also includes a lamp holder installed on the side of the mold base, and a lamp is detachably connected to the lamp holder through a locking structure.

[0009] Furthermore, there are two waist grooves on the circumferential portion of the end surface of the mirror base, and a locking piece located in the waist grooves is arranged on the end surface of the mounting plate.

[0010] Furthermore, the driving assembly includes a worm rotatably connected to the mounting plate, a worm wheel portion is provided on the outer side of the mirror seat, and the worm is meshed with the worm wheel portion.

[0011] Furthermore, a rotating sleeve is slidably connected to the end of the worm, and a spring is fixedly connected between the rotating sleeve and the end of the worm, and is circumferentially locked, wherein an avoidance groove for placing the rotating sleeve is provided on the end surface of the mounting plate, and a gear ring and a limiting protrusion are respectively provided on the opposite surfaces of the rotating sleeve and the avoidance groove.

[0012] Furthermore, the locking structure includes a fixing tube fixed to a side of the lamp holder, the lamp is placed in the fixing tube, and a fixing structure is provided between the fixing tube and the lamp.

[0013] Furthermore, the fixing structure includes a plurality of deformation slots axially opened on the outside of the fixing tube, a protrusion is provided at the end of the fixing tube, and a threaded member for abutting against the protrusion is threadedly connected to the outside of the fixing tube.

[0014] The utility model proposes a coaxial visual module, which has the beneficial effect that: the driving component set in the utility model is used to adjust the angle of the mirror seat, which can effectively improve the convenience and stability of the reflector angle adjustment process; the driving component itself has a locking function, and can fix its position in the working state to avoid problems such as the angle of the reflector being offset after adjustment, thereby ensuring the stability of the use process; secondly, the lamp in this embodiment is connected to the lamp holder by a locking mechanism, and when the lamp is damaged, the locking structure can be used to conveniently disassemble the lamp, so as to improve the convenience of assembly and maintenance of the lamp; the overall structural design is simple, and the applicability of the existing visual module is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of area A;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4This is a schematic diagram of the structure of the rotating sleeve of the utility model;

[0019] Figure 5 It is a schematic diagram of the gear ring structure of the utility model.

[0020] In the figure: 1. mold base; 2. visual camera; 3. mounting plate; 31. avoidance groove; 4. mirror base; 41. waist groove; 42. locking piece; 5. reflector; 6. drive assembly; 61. worm; 62. worm gear; 63. rotating sleeve; 64. gear ring; 65. limiting cam; 7. lamp base; 8. locking structure; 81. fixing tube; 82. deformation gap; 83. raised part; 84. threaded part; 9. lamp. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 An embodiment of the utility model discloses a coaxial vision module, which includes a mold base 1 for connecting a laser galvanometer, a vision camera 2 is fixedly installed on the top of the mold base 1, two mounting plates 3 are respectively fixed on the mold base 1, a mirror base 4 is rotatably connected to the outer end of the mounting plate 3, a reflector 5 located inside the mold base 1 is fixed on the inner side of the mirror base 4, and the reflector 5 adopts an AO I laser lens. It is known to those skilled in the art that in this embodiment, the two reflectors 5 are cross-distributed with each other, and the cross-angle is within the range of 90±10 degrees, wherein the lower reflector 5 and the light path of the laser galvanometer are at an angle of 45 degrees, and its main optical axis is coaxial with the optical axis of the vision camera 2, and the upper reflector 5 is used to reflect the light path of the lamp 9, and the specific structure and light path principle have been disclosed in the prior art, and will not be elaborated here;

[0023] Furthermore, the mounting plate 3 is also provided with a driving assembly 6 for driving the mirror holder 4 to rotate;

[0024] It also includes a lamp holder 7 installed on the side of the mold base 1 , and a lamp 9 is detachably connected to the lamp holder 7 via a locking structure 8 .

[0025] In some embodiments, there are two waist grooves 41 on the circumferential portion of the end surface of the mirror base 4, and a locking member 42 located in the waist groove 41 is provided on the end surface of the mounting plate 3. Specifically, the locking member 42 described in this embodiment is configured as a bolt threadedly connected to the mounting plate 3. Technicians in the relevant field know that in this embodiment, a T-slot is provided on the end surface of the mounting plate 3, and the cross-section of the mirror base 4 is a T-shaped structure for adaptation. The end of the bolt is used to limit the forward and backward movement of the mirror base 4, and the locking member 42 cooperates with the waist groove 41 to achieve rotational guidance of the mirror base 4.

[0026] Furthermore, the driving assembly 6 in the present embodiment includes a worm 61 rotatably connected to the mounting plate 3, and a worm wheel portion 62 is provided on the outer side of the mirror seat 4, and the worm 61 is meshed with the worm wheel portion 62, that is, in the present embodiment, the worm 61 is used to drive the worm wheel portion 62 to rotate, so as to adjust the rotation angle of the mirror seat 4, so as to adjust the angles of the two reflectors 5 during the assembly process, so as to keep the light angle of the reflector 5 to meet the preset requirement. In addition, the worm 61 is used to adjust the drive in the present embodiment, which makes the angle adjustment of the reflector 5 smoother and can also effectively improve the adjustment accuracy of the reflector 5.

[0027] Of course, the limitation of the worm 61 must also be considered to improve the stability of the position of the reflector 5. In this embodiment, a rotating sleeve 63 is slidably connected to the end of the worm 61, and a spring is fixedly connected between the rotating sleeve 63 and the end of the worm 61, and circumferential locking is performed. The end surface of the mounting plate 3 has an avoidance groove 31 for placing the rotating sleeve 63, and the rotating sleeve 63 and the opposite surfaces of the avoidance groove 31 are respectively provided with a gear ring 64 and a limiting protrusion 65. Specifically, in this embodiment, the end of the worm 61 is a square rod, and a rectangular hole is opened inside the rotating sleeve 63 to realize the circumferential locking function.

[0028] In the initial state, the toothed ring 64 at the end of the rotating sleeve 63 is engaged with the limiting protrusion 65 in the avoidance groove 31 to prevent the rotating sleeve 63 from rotating, thereby preventing the worm 61 from rotating. When it is necessary to rotate the worm 61 to adjust the angle of the reflector 5, first slide the rotating sleeve 63 inward to separate its end from the limiting protrusion 65. Thereafter, the rotating sleeve 63 can be rotated to drive the worm 61 to rotate synchronously to adjust the angle of the reflector 5.

[0029] In some embodiments, the locking structure 8 includes a fixing tube 81 fixed to a side of the lamp holder 7 , and the lamp 9 is placed in the fixing tube 81 , wherein a fixing structure is provided between the fixing tube 81 and the lamp 9 .

[0030] On the basis of the above-mentioned embodiment, the fixing structure in this embodiment includes a plurality of deformation slits 82 axially opened on the outside of the fixing tube 81, a protrusion 83 is provided at the end of the fixing tube 81, and a threaded member 84 for abutting against the protrusion 83 is threadedly connected to the outer side of the fixing tube 81, and the threaded member 84 is configured as a nut, and the nut abuts against the protrusion 83 during the threaded connection to deform the end of the fixing tube 81, and the clamping force generated by the deformation fixes the lamp 9, thereby realizing convenient disassembly of the lamp 9 and improving the convenience of assembly and maintenance.

[0031] In summary, the driving component 6 provided in the utility model is used to adjust the angle of the mirror holder 4, which can effectively improve the convenience and stability of the angle adjustment process of the reflector 5. The driving component 6 itself has a locking function, and its position can be fixed in the working state to avoid problems such as the angle of the reflector 5 being offset after adjustment, thereby ensuring the stability of the use process. Secondly, in this embodiment, the lamp 9 is connected to the lamp holder 7 by a locking mechanism 8. When the lamp is damaged, the locking structure 8 can be used to conveniently disassemble the lamp 9 to improve the convenience of assembly and maintenance of the lamp 9. The overall structural design is simple, which effectively improves the applicability of the existing visual module.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coaxial vision module, comprising a mold base (1) for connecting a laser galvanometer, characterized in that: A visual camera (2) is fixedly mounted on the top of the mold base (1), two mounting plates (3) are respectively fixed on the mold base (1), a mirror base (4) is rotatably connected to the outer end of the mounting plate (3), a reflector (5) located inside the mold base (1) is fixed on the inner side of the mirror base (4), and a driving component (6) for driving the mirror base (4) to rotate is also provided on the mounting plate (3); It also includes a lamp holder (7) installed on the side of the mold base (1), and a lamp (9) is detachably connected to the lamp holder (7) via a locking structure (8); The driving assembly (6) comprises a worm (61) rotatably connected to the mounting plate (3), a worm wheel portion (62) is arranged on the outer side of the mirror seat (4), and the worm (61) meshes with the worm wheel portion (62); A rotating sleeve (63) is slidably connected to the end of the worm (61), a spring is fixedly connected between the rotating sleeve (63) and the end of the worm (61), and is circumferentially locked, wherein an escape groove (31) for placing the rotating sleeve (63) is provided on the end surface of the mounting plate (3), and a toothed ring (64) and a limiting protrusion (65) are respectively provided on the opposite surfaces of the rotating sleeve (63) and the escape groove (31); The locking structure (8) comprises a fixing tube (81) fixed to a side surface of the lamp holder (7), the lamp (9) being placed in the fixing tube (81), wherein a fixing structure is provided between the fixing tube (81) and the lamp (9); The fixing structure comprises a plurality of deformation slits (82) axially opened on the outside of the fixing tube (81); a protrusion (83) is provided at the end of the fixing tube (81); and a threaded member (84) for contacting the protrusion (83) is threadedly connected to the outside of the fixing tube (81).

2. A coaxial vision module according to claim 1, characterized in that: Two waist grooves (41) are provided on the circumferential portion of the end surface of the mirror base (4), and a locking piece (42) located in the waist grooves (41) is provided on the end surface of the mounting plate (3).

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