Laser marking equipment

Abstract

The invention discloses laser marking equipment, and belongs to the field of laser marking machines, the laser marking equipment comprises a control table and a lifting table fixedly mounted on the upper side of the control table, a cavity is slidably connected to the outer side of the lifting table, a galvanometer is fixedly mounted on the front side of the cavity, and anti-loosening parts are arranged in the galvanometer and on the lower side of the galvanometer jointly; according to the invention, the conveying pipe and the hose start to expand when the cooling liquid is conveyed and extrude the positioning ring and the field lens, and the cooling liquid flows to absorb heat in the galvanometer, because the conveying pipe and the hose start to expand after the cooling liquid is conveyed, the heat in the galvanometer can be absorbed, and the heat in the galvanometer can be absorbed by the positioning ring after the cooling liquid is conveyed by the conveying pipe and the hose. And the cooling liquid absorbs part of heat in the galvanometer in the flowing process, the effect of reducing the temperature of the field lens in the working process is achieved, and the situation that the refractive index is affected by slight deformation of the field lens due to the too high temperature of the field lens is avoided.

Description

Technical Field

[0001] The present invention relates to the field of laser marking machines, and more particularly to a laser marking device. Background Art

[0002] Laser marking equipment, also known as laser marking machine or laser engraving machine, is a device that uses laser beams to permanently mark the surface of various materials. It uses laser beams to evaporate the surface material to expose the deeper material, or cause chemical and physical changes in the surface material to carve out traces, thereby forming the desired graphics, text or patterns.

[0003] The working principle of laser marking equipment is based on a high-energy-density laser beam. The laser generator generates a continuous laser beam, which acts on the surface of the printing material after focusing, causing the surface material to melt or even vaporize instantly. By controlling the path of the laser on the surface of the material, the required graphic mark is formed. This non-contact processing method will not damage the processed object, and the processing is fine, fast and low-cost. Laser marking equipment can be divided into many types according to the type of laser used and the working method, mainly including fiber laser marking machine, CO2 laser marking machine and UV laser marking machine;

[0004] In the prior art, since the laser marking machine will inevitably vibrate during operation, the optical lens is not directly locked due to the need for replacement. Long-term vibration can easily cause the optical lens to loosen, which will affect the irradiation effect of high-energy laser and even cause the optical lens to loosen and fall off. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a laser marking device, which can realize the squeezing of the field mirror by the delivery tube and the hose, and absorb part of the heat inside the galvanometer during the flow of the coolant, thereby achieving the effect of lowering the working temperature of the field mirror, thereby avoiding the situation where the field mirror is too hot and causes slight deformation, affecting the refractive index.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A laser marking device comprises a console and a lifting platform fixedly mounted on the upper side of the console, wherein a cavity is slidably connected to the outer side of the lifting platform, a galvanometer is fixedly mounted on the front side of the cavity, and an anti-loosening component is provided inside and on the lower side of the galvanometer, wherein the anti-loosening component comprises a positioning ring rotatably overlapped on the lower side of the galvanometer;

[0008] An external thread is provided on the outer side of the positioning ring, and the positioning ring is threadedly connected to the inside of the galvanometer through the external thread. A field mirror is overlapped on the upper side of the positioning ring. A delivery pipe is movably installed inside the galvanometer, and there are three delivery pipes. The length of the delivery pipe at the front end is greater than that of the other two delivery pipes, and both ends of the delivery pipe at the front end are connected with hoses, and the other ends of the two hoses are respectively connected to one end of the other two delivery pipes close to the hoses. The three hoses and the two hoses are overlapped together on the upper side of the same field mirror, and a cooling component is provided inside the galvanometer.

[0009] Furthermore, a cooling component is provided inside the galvanometer, and the cooling component includes an output end arranged at one end of a shorter delivery pipe on the left side away from the galvanometer, and an input end is arranged at one end of a shorter delivery pipe on the right side away from the galvanometer. The three delivery pipes, two hoses, and the output end are connected to the input end, and the output end and the input end both pass through the back of the galvanometer.

[0010] Furthermore, a cleaning assembly is provided on the upper side of the console and the outer side of the galvanometer, and the cleaning assembly includes a bracket fixedly connected to the upper side of the console, the interior of the bracket is rotatably connected to a first gear, a driving motor is fixedly installed on the upper side of the bracket, the rotating shaft of the driving motor is fixedly connected to the upper side of the first gear, the interior of the bracket is rotatably connected to an annular rack via a limiting ring, and the outer side of the annular rack is meshed with the outer side of the first gear.

[0011] Furthermore, the internal rotation of the annular rack is connected to a second gear, and the number of the second gears is two, and one side of the opposite surfaces of the two second gears is fixedly connected to the same rotating ring, the shape of the rotating ring is adapted to the shape of the internal cavity of the annular rack, and after the galvanometer moves downward, the rotating ring is sleeved on the outside of the galvanometer.

[0012] Furthermore, a rotating disk is hinged inside the rotating ring, and there are two rotating disks, both of which are semicircular, and cleaning cottons are fixedly installed on the upper and lower sides of the two rotating disks, and both of the cleaning cottons are semicircular.

[0013] Furthermore, a flip assembly is provided inside the bracket and outside the galvanometer, and the flip assembly includes a guide groove opened on the outside of the galvanometer, the guide groove is in a circular ring shape, a guide block is slidably connected inside the guide groove, a movable seat is fixedly connected to the lower side of the guide block, and the movable seat passes through the annular rack.

[0014] Furthermore, a limiting groove is provided inside the movable seat, and a limiting plate is slidably connected inside the limiting groove. The limiting plate passes through the front side of the movable seat, and a first return spring is fixedly connected to the back side of the limiting plate. There are multiple first return springs, and the other ends of the multiple first return springs are fixedly connected to one side of the back side of the limiting groove. A plurality of inclined surfaces are provided on the front side of the limiting plate, and the inclined surfaces face downward, and the front side of the limiting plate is meshed with the outer side of one of the second gears.

[0015] Furthermore, a liquid supply component is provided inside the rotating disk, and the liquid supply component includes two storage chambers opened inside the two rotating disks, and magnetic blocks are fixedly connected to one side of the opposite surfaces of the two rotating disks, and the two magnetic blocks are magnetically attracted to each other. A sealing ring is slidably connected to the inside of the storage chamber, and extension grooves are provided on the upper and lower sides of the storage chamber. The sealing ring is inserted into the extension groove after moving, and cotton strips are inserted on the upper and lower sides of the rotating disk, and the number of cotton strips on the upper and lower sides of the rotating disk is multiple, and the multiple cotton strips are fixedly connected to the same cleaning cotton.

[0016] Furthermore, a force adjustment component is provided on the upper side of the console, and the force adjustment component includes two slide grooves opened on the upper side of the console, and the interiors of the two slide grooves are slidably connected with connecting plates, and the number of connecting plates is two, and the upper sides of the two corresponding connecting plates are fixedly connected with clamping plates, and the number of the clamping plates is multiple, and the height of the multiple clamping plates gradually decreases from the outside to the inside.

[0017] Furthermore, a retaining ring is slidably connected to the upper side of the console, and an electric push rod is fixedly connected to one side of the back side of the retaining ring. A fixed seat is fixedly connected to the upper side of the console, and the number of the fixed seats is two. Second return springs are fixed on one side of the opposite surfaces of the two fixed seats, and the number of the second return springs is multiple. Inclined surfaces are provided on both sides of the retaining ring, and the other ends of the multiple second return springs are overlapped on the side of the bracket close to the fixed seat. After the retaining ring is removed, the second return spring is pressed and contacted on the side of the clamping plate close to the second return spring. A striker is fixedly connected to the lower side of the galvanometer, and a pressure sensor is fixedly installed on the upper side of the bracket. After the striker moves downward, it is pressed and contacted on the upper side of the pressure sensor, and the electric push rod, the pressure sensor and the console are electrically connected.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The delivery pipe and the hose provided in the present invention begin to expand when delivering the coolant, and squeeze the positioning ring and the field mirror, and the flow of the coolant will also absorb the heat inside the galvanometer. Since the delivery pipe and the hose begin to expand after delivering the coolant, the field mirror will also be squeezed by the expanded delivery pipe and the hose. During the flow of the coolant, part of the heat inside the galvanometer is absorbed, and the temperature of the field mirror during operation is reduced, thereby avoiding the situation where the field mirror is slightly deformed due to excessive temperature and affects the refractive index.

[0020] (2) The present invention maintains continuous rotation by providing a rotatable rotating disk and cleaning cotton, and cleans impurities attached to the surface of the field lens. Since the cleaning cotton rotates continuously and cleans the field lens passing through the inside of the rotating ring, it avoids the impurities attached to the surface of the field lens from affecting the refraction effect of the high-energy laser, and also prevents the impurities from contaminating the field lens.

[0021] (3) The present invention drives the second gear to rotate when the movable seat moves upward through the movable seat and the limit plate inside the movable seat, and the second gear rotates when the movable seat moves downward, so that the cleaning cotton fixed on the upper and lower sides of the rotating disk can be turned over in an orderly manner. Since the cleaning cotton used to clean the field mirror can be turned over frequently, and the rotating disk will automatically open and vibrate after the galvanometer passes through the inside of the rotating ring, it is beneficial to shake off the particulate impurities attached to the surface of the cleaning cotton, and at the same time avoid using the same piece of cleaning cotton to clean the field mirror for a long time, so as to ensure the cleanliness of the cleaning cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0024] Figure 3 is a schematic cross-sectional structural diagram of the stent of the present invention;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the galvanometer of the present invention;

[0026] Figure 5 It is a schematic cross-sectional structural diagram of the annular rack of the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the rotating disk of the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified schematic diagram of point A;

[0029] Figure 8 It is a schematic cross-sectional structural diagram of the movable seat of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the clamp ring of the present invention;

[0031] Fig.10 It is a schematic cross-sectional structural diagram of the chute of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1. Control console; 2. Lifting platform; 3. Cavity; 4. Vibrating mirror; 5. Anti-loosening component; 51. Positioning ring; 52. External thread; 53. Field mirror; 54. Delivery pipe; 55. Hose; 56. Cooling component; 561. Output end; 562. Input end; 57. Cleaning component; 571. Bracket; 572. First gear; 573. Driving motor; 574. Ring rack; 575. Second gear; 576. Rotating ring; 577. Rotating disk; 578. Cleaning cotton; 58. Flipping component; 581. Guide groove; 582. Guide block; 583. Movable seat; 584. Limit groove; 585. First return spring; 586. Limit plate; 59. Liquid supply assembly; 591. Storage chamber; 592. Magnetic block; 593. Extension groove; 594. Sealing ring; 595. Tampon; 6. Force adjustment component; 61. Slide groove; 62. Connecting plate; 63. Clamping plate; 64. Retaining ring; 65. Electric push rod; 66. Fixed seat; 67. Second return spring; 68. Impact rod; 69. Pressure sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 10 A laser marking device includes a console 1 and a lifting platform 2 fixedly mounted on the upper side of the console 1, a cavity 3 is slidably connected to the outer side of the lifting platform 2, a galvanometer 4 is fixedly mounted on the front of the cavity 3, and an anti-loosening component 5 is provided inside and on the lower side of the galvanometer 4. The anti-loosening component 5 includes a positioning ring 51 rotatably overlapped on the lower side of the galvanometer 4;

[0036] An external thread 52 is provided on the outer side of the positioning ring 51, and the positioning ring 51 is threadedly connected to the inside of the galvanometer 4 through the external thread 52. A field lens 53 is overlapped on the upper side of the positioning ring 51. A delivery pipe 54 is movably installed inside the galvanometer 4, and there are three delivery pipes 54. The length of the delivery pipe 54 at the front end is greater than the lengths of the other two delivery pipes 54, and both ends of the delivery pipe 54 at the front end are connected with hoses 55, and the other ends of the two hoses 55 are respectively connected to one end of the other two delivery pipes 54 close to the hoses 55. The three hoses 55 and the two hoses 55 are overlapped together on the upper side of the same field lens 53, and a cooling component 56 is provided inside the galvanometer 4.

[0037] By adopting the above technical solution, first, when marking the workpiece, the height of the cavity 3 can be controlled by the lifting platform 2 above the control console 1. Since the cavity 3 is connected to the galvanometer 4, the galvanometer 4 will also move with the cavity 3. When installing the field mirror 53, the delivery tube 54 needs to be installed in advance inside the galvanometer 4, and the field mirror 53 is fixed inside the positioning ring 51. Then, the positioning ring 51 together with the field mirror 53 is placed under the galvanometer 4, and the positioning ring 51 is screwed to fix the external thread 52 on the outer side thereof under the galvanometer 4. At the same time, The delivery tube 54 and the hose 55 inside the galvanometer 4 begin to expand and squeeze the field lens 53 after delivering the coolant. After the coolant is delivered inside the delivery tube 54 and the hose 55, the coolant causes the delivery tube 54 and the hose 55 to expand, and the field lens 53 inside the positioning ring 51 will also be squeezed by the expanded delivery tube 54 and the hose 55, which not only limits the field lens 53 to prevent it from loosening, but also further pushes the positioning ring 51. There is no need to worry about screwing the galvanometer 4 and the positioning ring 51 together, which facilitates the subsequent replacement of the field lens 53.

[0038] like Figure 2 and Figure 4 As shown, a cooling component 56 is provided inside the galvanometer 4. The cooling component 56 includes an output end 561 provided at one end of the left shorter delivery pipe 54 away from the galvanometer 4, and an input end 562 is provided at one end of the right shorter delivery pipe 54 away from the galvanometer 4. The three delivery pipes 54, the two hoses 55, the output end 561 and the input end 562 are connected, and the output end 561 and the input end 562 both pass through the back side of the galvanometer 4.

[0039] By adopting the above technical solution, first, the coolant enters the inside of the delivery pipe 54 through the input end 562. As the coolant moves inside the delivery pipe 54, the coolant will pass through the two hoses 55, causing the two hoses 55 to further expand, and then be discharged from the output end 561. In the process of the coolant flowing inside the delivery pipe 54, it will absorb the heat generated inside the galvanometer 4 and cool the optical lens. Since the coolant absorbs part of the heat inside the galvanometer 4 during the flow, it achieves the effect of lowering the working temperature of the field lens 53, thereby avoiding the situation where the field lens 53 is too hot and causes slight deformation, affecting the refractive index.

[0040] like Figure 3 and Figure 5 As shown, a cleaning assembly 57 is provided on the upper side of the console 1 and the outer side of the galvanometer 4. The cleaning assembly 57 includes a bracket 571 fixedly connected to the upper side of the console 1. The interior of the bracket 571 is rotatably connected to a first gear 572. A driving motor 573 is fixedly installed on the upper side of the bracket 571. The rotating shaft of the driving motor 573 is fixedly connected to the upper side of the first gear. The interior of the bracket 571 is rotatably connected to an annular rack 574 via a limiting ring. The outer side of the annular rack 574 meshes with the outer side of the first gear 572.

[0041] The internal rotation of the annular rack 574 is connected to the second gear 575, and the number of the second gears 575 is two. The same rotating ring 576 is fixedly connected to one side of the opposite surfaces of the two second gears 575. The shape of the rotating ring 576 is adapted to the shape of the internal cavity of the annular rack 574. After the galvanometer 4 moves downward, the rotating ring 576 is sleeved on the outside of the galvanometer 4.

[0042] A rotating disk 577 is hinged inside the rotating ring 576, and there are two rotating disks 577, both of which are semicircular. Cleaning cotton 578 is fixedly installed on the upper and lower sides of the two rotating disks 577, and both of which are semicircular.

[0043] By adopting the above technical solution, first, when the lifting platform 2 drives the galvanometer 4 to move downward, the galvanometer 4 will drive the field mirror 53 to pass through the bracket 571. At the same time, the driving motor 573 above the bracket 571 will drive the first gear 572 to rotate, and the first gear 572 will drive the annular rack 574 to rotate inside the bracket 571 after rotating. Since the annular rack 574 is composed of two identical semi-annular racks, the second gear 575 can be installed inside the annular rack 574, and the two second gears 575 inside the annular rack 574 are fixed to the rotating ring 576, so that the rotating ring 576 drives the two rotating disks 577 hinged inside the rotating ring 576 and the upper and lower sides thereof. The cleaning cotton 578 rotates in a circle inside the annular rack 574, and the galvanometer 4 will enter the annular rack 574 after moving downward. When the galvanometer 4 contacts the cleaning cotton 578 above the rotating disk 577, the two cleaning cottons 578 continue to rotate, so that the cleaning cotton 578 will clean the field lens 53 inside the galvanometer 4. Then the galvanometer 4 continues to move downward, the two rotating disks 577 will gradually open, and the galvanometer 4 will pass through the rotating ring 576. Since the cleaning cotton 578 continues to rotate and cleans the field lens 53 passing through the rotating ring 576, it avoids the impurities attached to the surface of the field lens 53 from affecting the refraction effect of the high-energy laser, and also prevents the impurities from contaminating the field lens 53.

[0044] like Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, a flip assembly 58 is provided inside the bracket 571 and outside the galvanometer 4. The flip assembly 58 includes a guide groove 581 opened on the outside of the galvanometer 4. The guide groove 581 is in a circular ring shape. A guide block 582 is slidably connected inside the guide groove 581. A movable seat 583 is fixedly connected to the lower side of the guide block 582. The movable seat 583 passes through the annular rack 574.

[0045] A limiting groove 584 is provided inside the movable seat 583, and a limiting plate 586 is slidably connected inside the limiting groove 584. The limiting plate 586 passes through the front side of the movable seat 583, and a first return spring 585 is fixedly connected to the back side of the limiting plate 586. There are multiple first return springs 585, and the other ends of the multiple first return springs 585 are fixedly connected to one side of the back side of the limiting groove 584. A plurality of inclined surfaces are provided on the front side of the limiting plate 586, and the inclined surfaces face downward, and the front side of the limiting plate 586 is meshed with the outer side of one of the second gears 575.

[0046] By adopting the above technical solution, firstly, when the galvanometer 4 moves downward, the movable seat 583 fixed by the guide block 582 inside the guide groove outside the galvanometer 4 will penetrate the annular rack 574, and the limiting plate 586 inside the movable seat 583 is meshed with one of the second gears 575, and the inclined surface is facing downward. When the movable seat 583 moves downward, the limiting plate 586 will be pushed into the limiting groove 584 inside the movable seat 583 by the second gear 575, and then pushed out of the limiting groove 584 by the first return spring 585 inside the limiting groove 584. At this time, the second gear 575 will not be able to rotate, and when the movable seat 583 moves upward, the limiting plate 586 above The horizontal plane contacts the second gear 575, and at this time the limit plate 586 cannot be retracted into the limit groove 584, which will drive the second gear 575 to rotate. While the second gear 575 rotates, the rotating ring 576 will drive the rotating disk 577 inside it to turn over, so that the cleaning cotton 578 originally facing downward faces upward. Since the cleaning cotton 578 used to clean the field mirror 53 can be turned over frequently, and the rotating disk 577 will automatically open and shake after the galvanometer 4 passes through the rotating ring 576, it is helpful to shake off the particulate impurities attached to the surface of the cleaning cotton 578, and at the same time avoid using the same piece of cleaning cotton 578 to clean the field mirror 53 for a long time to ensure the cleanliness of the cleaning cotton 578.

[0047] like Figure 6 and Figure 7 As shown, a liquid supply component 59 is provided inside the rotating disk 577, and the liquid supply component 59 includes two storage chambers 591 opened inside the two rotating disks 577, and a magnetic block 592 is fixedly connected to one side of the opposite surfaces of the two rotating disks 577, and the two magnetic blocks 592 are magnetically attracted to each other, and a sealing ring 594 is slidably connected inside the storage chamber 591, and an extension groove 593 is provided on the upper side and the lower side of the storage chamber 591, and the sealing ring 594 is inserted into the extension groove 593 after moving, and cotton strips 595 are inserted on the upper side and the lower side of the rotating disk 577, and the number of cotton strips 595 on the upper side and the lower side of the rotating disk 577 is multiple, and the multiple cotton strips 595 are fixedly connected to the same cleaning cotton 578.

[0048] By adopting the above technical solution, firstly, the two rotating disks 577 are positioned by the mutual adsorption of the two magnetic blocks 592 when docking, and the internal storage cavity 591 of the rotating disk 577 stores alcohol. Because the cleaning cotton 578 is connected to the cotton strip 595 and extends to the extension groove 593 and the storage cavity 591, the cotton strip 595 absorbs the alcohol in the storage cavity 591 due to the capillary phenomenon and transfers it to the cleaning cotton 578, and the blocking ring 594 in the storage cavity 591 moves downward according to its own weight and contacts the alcohol located below. The extension groove 593 is blocked so that alcohol cannot enter the extension groove 593 below. When the rotating disk 577 is turned over, the sealing ring 594 will block the extension groove 593 below again according to its own weight. Since the cotton strip 595 continues to guide the alcohol in the storage cavity 591 to the inside of the cleaning cotton 578, the cleaning cotton 578 absorbs the alcohol and cleans the impurities attached to the surface of the field lens 53, thereby further ensuring the cleanliness of the surface of the field lens 53 and avoiding alcohol leakage.

[0049] like Fig. 9 and Fig.10 As shown, a force adjustment component 6 is provided on the upper side of the console 1, and the force adjustment component 6 includes two slide grooves 61 opened on the upper side of the console 1, and the interiors of the two slide grooves 61 are slidably connected with connecting plates 62, and the number of the connecting plates 62 is two, and the upper sides of the corresponding two connecting plates 62 are fixedly connected with clamping plates 63, and the number of the clamping plates 63 is multiple, and the height of the multiple clamping plates 63 gradually decreases from the outside to the inside.

[0050] A retaining ring 64 is slidably connected to the upper side of the console 1, and an electric push rod 65 is fixedly connected to one side of the back side of the retaining ring 64. A fixed seat 66 is fixedly connected to the upper side of the console 1, and the number of the fixed seats 66 is two. Second return springs 67 are fixed on one side of the opposite surfaces of the two fixed seats 66, and the number of the second return springs 67 is multiple. Inclined surfaces are provided on both sides of the retaining ring 64, and the other ends of the multiple second return springs 67 are overlapped on the side of the bracket 571 close to the fixed seat 66. After the retaining ring 64 is removed, the second return spring 67 is pressed and contacted on the side of the clamping plate 63 close to the second return spring 67. A striker 68 is fixedly connected to the lower side of the galvanometer 4, and a pressure sensor 69 is fixedly installed on the upper side of the bracket 571. After the striker 68 moves downward, it is pressed and contacted on the upper side of the pressure sensor 69. The electric push rod 65, the pressure sensor 69 and the console 1 are electrically connected.

[0051] By adopting the above technical solution, first, when the workpiece is placed on the top of the console 1, the cavity 3 moves downward and drives the striker 68 to move downward, and contacts the pressure sensor 69 above the bracket 571, so that the pressure sensor 69 transmits the received information to the console 1, and starts the electric push rod 65 to pull the retaining ring 64, and then the retaining ring 64 gradually moves away from the workpiece, and the second return spring 67 that was originally in contact with the retaining ring 64 will push the clamping plate 63 after losing the restriction of the retaining ring 64, so that the clamping plate 63 slides inside the slide groove 61 above the console 1 through the connecting plate 62, and the two clamping plates 63 will squeeze the workpiece. As more and more second return springs 67 disengage from the retaining ring 64, the pressure exerted by the second return spring 67 on the clamping plate 63 will also increase, and workpieces of different sizes will be clamped by different clamping plates 63. When the retaining ring 64 gradually returns to its original position, the retaining ring 64 will squeeze the second return spring 67 through the inclined surfaces on both sides of it, so that the second return spring 67 disengages from the clamping plate 63. During the process of clamping different workpieces, the clamping plate 63 can select different forces for clamping through the second return spring 67, thereby avoiding breakage or damage of the workpiece due to excessive clamping force, and workpieces of different sizes can be positioned through different clamping plates 63.

[0052] Working principle: First, when marking the workpiece, the height of the cavity 3 can be controlled by the lifting platform 2 on the upper part of the control console 1. When installing the field mirror 53, the delivery pipe 54 needs to be installed in advance inside the galvanometer 4, and the field mirror 53 is fixed inside the positioning ring 51. After the positioning ring 51 is screwed, the outer thread 52 on the outer side of the positioning ring 51 is fixed to the bottom of the galvanometer 4. At the same time, the delivery pipe 54 and the hose 55 inside the galvanometer 4 begin to expand and squeeze the field mirror 53 after delivering the coolant. The coolant will pass through the two hoses 55, causing the two hoses 55 to expand further, and then be discharged from the output end 561. The coolant will absorb the heat generated inside the galvanometer 4 during the flow process and cool the optical lens;

[0053] As the lifting platform 2 drives the galvanometer 4 to move downward, the galvanometer 4 will drive the field mirror 53 to pass through the bracket 571. The driving motor 573 above the bracket 571 will drive the first gear 572 to rotate, and drive the annular rack 574 to rotate inside the bracket 571. Because the rotating ring 576 is installed inside the annular rack 574 through two second gears 575, the two rotating disks 577 hinged inside the rotating ring 576 and the cleaning cotton 578 on the upper and lower sides thereof make a circular rotation inside the annular rack 574. After the galvanometer 4 moves downward and enters the annular rack 574, and the galvanometer 4 contacts the cleaning cotton 578 above the rotating disk 577, the cleaning cotton 578 will clean the field mirror 53 inside the galvanometer 4. Then the galvanometer 4 continues to move downward, and the two rotating disks 577 will gradually open. At the same time, the cleaning cotton 578 outside the galvanometer 4 The movable seat 583 fixed by the guide block 582 inside the side guide groove will penetrate the annular rack 574, and the limiting plate 586 inside the movable seat 583 will be engaged with one of the second gears 575, and the inclined surface opened is facing downward, so that the limiting plate 586 will be pushed into the limiting groove 584 inside the movable seat 583 by the second gear 575, and finally pushed out of the limiting groove 584 by the first return spring 585. At this time, the second gear 575 will not be able to rotate. When the movable seat 583 moves upward, the horizontal surface above the limiting plate 586 contacts the second gear 575, and the limiting plate 586 cannot be retracted into the limiting groove 584 at this time, which will drive the second gear 575 to rotate. When the second gear 575 rotates, the rotating ring 576 will drive the rotating disk 577 inside it to turn over, so that the cleaning cotton 578 originally facing downward faces upward;

[0054] Because the two rotating disks 577 are positioned by being attracted to each other by the two magnetic blocks 592 when docking, and the storage chamber 591 inside the rotating disk 577 stores alcohol, the cotton strip 595 connected with the cleaning cotton 578 extends to the extension groove 593 and the storage chamber 591, and the cotton strip 595 absorbs the alcohol inside the storage chamber 591 due to the capillary phenomenon and transfers it to the cleaning cotton 578, and the blocking ring 594 inside the storage chamber 591 moves downward according to its own weight and blocks the extension groove 593 located below, so that the alcohol cannot enter the extension groove 593 located below, and when the rotating disk 577 is turned over, the blocking ring 594 will block the extension groove 593 located below again according to its own weight;

[0055] When the workpiece is placed on top of the console 1, the impact rod 68 moves downward and contacts the pressure sensor 69 above the bracket 571, so that the pressure sensor 69 transmits the received information to the console 1 and starts the electric push rod 65 to pull the retaining ring 64. The second return spring 67 that was originally in contact with the retaining ring 64 will push the clamping plate 63 after losing the restriction of the retaining ring 64, so that the clamping plate 63 slides inside the slide groove 61 above the console 1 through the connecting plate 62, and the two clamping plates 63 will squeeze the workpiece. As multiple second return springs 67 disengage from the retaining ring 64, the pressure applied to the clamping plate 63 by the second return spring 67 will also increase.

[0056] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser marking device, comprising a control console (1) and a lifting platform (2) fixedly mounted on the upper side of the control console (1), wherein a cavity (3) is slidably connected to the outer side of the lifting platform (2), and a galvanometer (4) is fixedly mounted on the front side of the cavity (3), characterized in that: An anti-loosening component (5) is provided inside and on the lower side of the galvanometer (4), and the anti-loosening component (5) comprises a positioning ring (51) rotatably overlapped on the lower side of the galvanometer (4); The outer side of the positioning ring (51) is provided with an external thread (52), and the positioning ring (51) is threadedly connected to the inside of the galvanometer (4) through the external thread (52). The upper side of the positioning ring (51) is overlapped with a field mirror (53). A delivery pipe (54) is movably installed inside the galvanometer (4), and the number of the delivery pipes (54) is three. The length of the delivery pipe (54) at the front end is greater than the lengths of the other two delivery pipes (54), and both ends of the delivery pipe (54) at the front end are connected with a hose (55), and the other ends of the two hoses (55) are respectively connected to one end of the other two delivery pipes (54) close to the hose (55). The three hoses (55) and the two hoses (55) are overlapped together on the upper side of the same field mirror (53), and a cooling component (56) is provided inside the galvanometer (4).

2. A laser marking device according to claim 1, characterized in that: A cooling component (56) is provided inside the galvanometer (4), and the cooling component (56) comprises an output end (561) provided at one end of a shorter delivery pipe (54) on the left side away from the galvanometer (4), and an input end (562) provided at one end of a shorter delivery pipe (54) on the right side away from the galvanometer (4), and the three delivery pipes (54), the two hoses (55), the output end (561) and the input end (562) are connected, and the output end (561) and the input end (562) both pass through the back side of the galvanometer (4).

3. The laser marking device according to claim 1, characterized in that: A cleaning assembly (57) is provided on the upper side of the console (1) and the outer side of the galvanometer (4). The cleaning assembly (57) comprises a bracket (571) fixedly connected to the upper side of the console (1). The bracket (571) is internally rotatably connected to a first gear (572). A driving motor (573) is fixedly mounted on the upper side of the bracket (571). The rotating shaft of the driving motor (573) is fixedly connected to the upper side of the first gear (572). The bracket (571) is internally rotatably connected to an annular rack (574) via a limiting ring. The outer side of the annular rack (574) is meshed with the outer side of the first gear (572).

4. A laser marking device according to claim 3, characterized in that: The annular rack (574) is internally rotatably connected to a second gear (575), and the number of the second gears (575) is two. One side of the opposite surfaces of the two second gears (575) is fixedly connected to the same rotating ring (576), and the shape of the rotating ring (576) is compatible with the shape of the internal cavity of the annular rack (574). After the galvanometer (4) moves downward, the rotating ring (576) is sleeved on the outer side of the galvanometer (4).

5. A laser marking device according to claim 4, characterized in that: A rotating disk (577) is hingedly connected inside the rotating ring (576), and there are two rotating disks (577), both of which are semicircular in shape. Cleaning cotton (578) is fixedly installed on the upper and lower sides of the two rotating disks (577), and both of which are semicircular in shape.

6. The laser marking device according to claim 4, characterized in that: A flip assembly (58) is provided inside the bracket (571) and outside the galvanometer (4). The flip assembly (58) includes a guide groove (581) provided on the outside of the galvanometer (4). The guide groove (581) is in a circular shape. A guide block (582) is slidably connected inside the guide groove (581). A movable seat (583) is fixedly connected to the lower side of the guide block (582). The movable seat (583) passes through the annular rack (574).

7. A laser marking device according to claim 6, characterized in that: A limiting groove (584) is provided inside the movable seat (583), and a limiting plate (586) is slidably connected inside the limiting groove (584). The limiting plate (586) passes through the front of the movable seat (583). A first return spring (585) is fixedly connected to the back of the limiting plate (586), and there are multiple first return springs (585). The other ends of the multiple first return springs (585) are fixedly connected to one side of the back of the limiting groove (584). Multiple inclined surfaces are provided on the front of the limiting plate (586), and the inclined surfaces face downward. The front of the limiting plate (586) is meshed with the outer side of one of the second gears (575).

8. The laser marking device according to claim 5, characterized in that: A liquid supply component (59) is provided inside the rotating disk (577), and the liquid supply component (59) includes two storage chambers (591) opened inside the two rotating disks (577). One side of the opposite surfaces of the two rotating disks (577) is fixedly connected with a magnetic block (592), and the two magnetic blocks (592) are magnetically attracted to each other. A sealing ring (594) is slidably connected inside the storage chamber (591), and an extension groove (593) is provided on the upper side and the lower side of the storage chamber (591). After moving, the sealing ring (594) is inserted into the extension groove (593). Cotton strips (595) are inserted on the upper side and the lower side of the rotating disk (577), and the number of cotton strips (595) on the upper side and the lower side of the rotating disk (577) is multiple, and the multiple cotton strips (595) are fixedly connected to the same cleaning cotton (578).

9. The laser marking device according to claim 1, characterized in that: A force adjustment component (6) is provided on the upper side of the console (1), and the force adjustment component (6) comprises two slide grooves (61) opened on the upper side of the console (1), and the interiors of the two slide grooves (61) are slidably connected with connecting plates (62), and the upper sides of the two corresponding connecting plates (62) are fixedly connected with clamping plates (63), and the number of the clamping plates (63) is multiple, and the height of the multiple clamping plates (63) gradually decreases from the outside to the inside.

10. The laser marking device according to claim 9, characterized in that: The upper side of the console (1) is slidably connected to a snap ring (64), one side of the back side of the snap ring (64) is fixedly connected to an electric push rod (65), the upper side of the console (1) is fixedly connected to a fixing seat (66), and the number of the fixing seats (66) is two, and a second return spring (67) is fixed on one side of the opposite surface of the two fixing seats (66), and the number of the second return springs (67) is multiple, both sides of the snap ring (64) are provided with inclined surfaces, and the other ends of the multiple second return springs (67) are overlapped on the bracket ( 571) is close to the side of the fixed seat (66), after the retaining ring (64) is removed, the second return spring (67) is pressed and contacted on the side of the clamping plate (63) close to the second return spring (67), the lower side of the galvanometer (4) is fixedly connected with a striker (68), the upper side of the bracket (571) is fixedly installed with a pressure sensor (69), after the striker (68) moves downward, it is pressed and contacted on the upper side of the pressure sensor (69), and the electric push rod (65), the pressure sensor (69) and the control console (1) are electrically connected.

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