Eye protection device for laser cladding and protection method thereof

Abstract

The invention provides an eye protection device for laser cladding and a protection method thereof. The eye protection device comprises an outer goggle unit and an inner goggle unit, the outer goggle unit comprises an outer goggle connecting frame, and the two sides of the front end of the outer goggle connecting frame are connected with a first face fitting frame and a second face fitting frame respectively; the inner goggle unit comprises an eye fitting frame; lower fixing hooks are fixed to the lower end of the first face attaching frame and the lower end of the second face attaching frame, upper fixing hooks are fixed to the two sides of the upper end of the eye attaching frame, and the upper fixing hooks and the lower fixing hooks are hooked. The goggles have the advantages that when the filter lenses are taken down, a layer of lens protection structure continues to protect eyes, and the goggles are not prone to falling off when being used for a long time or an operator lowers the head to observe, so that the problems that the protection structure is poor in protection effect and inconvenient to use are effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cladding, and in particular relates to an eye protection device for laser cladding and a protection method thereof. Background Art

[0002] Laser cladding, also known as laser cladding or laser cladding, is a new surface modification technology. The selected coating material is placed on the surface of the coated substrate in different filler forms. After laser irradiation, it is melted at the same time as a thin layer on the substrate surface, and then quickly solidified to form a surface coating with extremely low dilution and metallurgical bonding with the substrate material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the substrate surface. The purpose of surface modification or repair is achieved, which not only meets the requirements for specific performance of the material surface, but also saves a large number of precious elements. Compared with surfacing, spraying, electroplating and vapor deposition, laser cladding has the characteristics of low dilution, dense organization, good combination of coating and substrate, more suitable cladding materials, large changes in particle size and content, etc.; and high economic benefits, it can prepare high-performance alloy surfaces on cheap metal substrates without affecting the properties of the substrate, reducing costs, and saving precious rare metal materials. Therefore, the application prospects of laser cladding technology are very broad.

[0003] The human eye is the most sensitive part to light. Low-power irradiation may not cause any feeling, but long-term radiation may cause chronic permanent damage. High-power instantaneous irradiation may cause permanent blindness. The laser beam will cause certain damage to the human eye, so it is necessary to choose appropriate laser goggles during laser cladding. Laser goggles are used to protect the glasses from the radiation from the laser and avoid permanent damage to the human eye caused by the laser.

[0004] Chinese patent authorization announcement number CN 217886365 U, authorization announcement date November 25, 2022, a wearable laser welding machine goggles, including a head cover and goggles; the head cover includes a U-shaped frame and a watch strap, the watch strap is connected to the U

[0005] The end of the frame forms a ring structure; the upper end of the goggles is installed by an L-shaped frame, and the other end of the L-shaped frame is hinged to the U-shaped frame. The present invention replaces the traditional goggles hanging on the ears, which brings burden to the ears, and the bridge of the nose does not bear the supporting force. The goggles are suspended in contact with the face under the support of the U-shaped frame, which improves the wearing comfort. The goggles are not easy to fall off during welding, thereby ensuring that the eyes are always protected during the welding process.

[0006] Because the goggles are hinged to the U-frame through the L-frame, the goggles are suspended in contact with the face under the support of the U-frame. After opening the goggles, the field of vision is wide and the state of the workpiece can be observed. However, the operating environment of laser cladding is not good. There will be diffused gas in the space which will also affect the eyes, and the connection relationship of the hinged connection is unstable. When the use time is long or the operator lowers his head to check the state of the workpiece, the goggles are easy to fall off. In this regard, we propose an eye protection device for laser cladding and a protection method thereof. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides an eye protection device for laser cladding and a protection method thereof. For example, when the filter lens is removed, there is still a layer of lens protection structure to continue to protect the eyes, and the goggles are not easy to fall off when used for a long time or when the operator lowers his head to observe, thereby effectively avoiding the problem of poor protection effect of the protection structure and inconvenience in use.

[0008] In one aspect, the present invention provides an eye protection device for laser cladding, comprising: an outer eye protection unit and an inner eye protection unit;

[0009] The outer goggles unit comprises an outer goggles connection frame, the front ends of which are respectively connected to a first face fitting frame and a second face fitting frame, and first magnetic blocks are arranged on both sides of the middle of the front end of the outer goggles connection frame;

[0010] The inner goggle unit comprises an eye fitting frame, and second magnetic blocks are arranged on both sides of the middle position of the rear end of the eye fitting frame, and the second magnetic blocks are magnetically fixed to the first magnetic blocks;

[0011] Fixed plates are fixed on both sides of the front end of the outer eye protection connection frame, the outer side of the fixed plate is rotatably connected to a connecting shaft, the other end of the connecting shaft is fixed to a first fixed seat, a torsion spring is arranged between the first fixed seat and the fixed plate along the outside of the connecting shaft, the front end of the first fixed seat is rotatably connected to a telescopic spring rod, the front end of the telescopic spring rod is rotatably connected to a second fixed seat, and the second fixed seat is fixed to the eye fitting frame;

[0012] External fixing strips are fixed along the lower ends of the telescopic spring rods on both sides of the eye fitting frame, fixed guide strips are fixed inside the first face fitting frame and the second face fitting frame, and sliding grooves that match the external fixing strips are provided on the inner sides of the fixed guide strips, and the external goggles unit and the internal goggles unit are limitedly slidably connected through the fixed guide strips and the external fixing strips;

[0013] The lower ends of the first face fitting frame and the second face fitting frame are both fixed with lower fixing hooks, the opening direction of the lower fixing hooks faces backwards, and both sides of the upper end of the eye fitting frame are fixed with upper fixing hooks, the opening direction of the upper fixing hooks faces forwards, and the upper fixing hooks are hooked with the lower fixing hooks.

[0014] Optionally, side connecting plates are fixed to the outer front ends of the first face fitting frame and the second face fitting frame, and rectangular through grooves are opened on the side connecting plates on the left and right sides, and vertical fixing rods are arranged in the rectangular through grooves, and the first face fitting frame and the second face fitting frame are respectively connected to the outer sides with the first tightening belt and the second tightening belt through the side connecting plates.

[0015] Optionally, the other ends of the first tightening belt and the second tightening belt are connected to a front hollow box body, and an adjustment knob is installed at the lower end of the front end of one side of the front hollow box body;

[0016] The lower end of the front end of the front hollow box body is rotatably connected to a driving worm, and the driving worm is coaxially fixed with the adjusting knob. A rotating worm wheel is installed inside the front hollow box body along the rear end of the driving worm, and the rotating worm wheel is meshed with the driving worm. The upper end of the rotating worm wheel is coaxially connected to a first tightening column, and the upper end of the first tightening column is coaxially connected to a first rotating gear. A second rotating gear is arranged inside the front hollow box body along the front end of the first rotating gear, and the second rotating gear is meshed with the first rotating gear. The lower end of the second rotating gear is coaxially connected to a second tightening column.

[0017] Optionally, the front and rear ends of the inner and outer side surfaces of the inner wall of the front hollow box body are both provided with first limiting rollers, the rear ends of the two first limiting rollers on the outer rear end are provided with second limiting rollers, a side through groove is provided between each group of the front and rear two first limiting rollers on the side surface of the front hollow box body, the first limiting column and the second limiting column are respectively installed on both sides of the inner part of the front hollow box body, and one end of the first tightening belt and the second tightening belt are respectively fixed to the two outer sides of the front hollow box body;

[0018] The other end of the first tightening belt passes through between the first limiting roller and the second limiting roller, bypasses the vertical fixed rod, is introduced from between the two outer first limiting rollers, passes through the side through the groove, and is introduced from between the two inner first limiting rollers, then bypasses the first limiting column from the front end, and finally bypasses the first tightening column from the front end and is fixed to the first tightening column;

[0019] The other end of the second tightening belt passes through between the first limiting roller and the second limiting roller, bypasses the vertical fixed rod, is introduced from between the two outer first limiting rollers, passes through the side through the groove, and is then introduced from between the two inner first limiting rollers, then bypasses the second limiting column from the rear end, and finally bypasses the second tightening column from the front end and is fixed to the second tightening column.

[0020] Optionally, ventilation holes are provided on the upper and lower end surfaces of the first face fitting frame and the second face fitting frame, an air inlet slot is provided in the middle of the end surface of the outer goggles connecting frame, a ventilation fan is installed at the upper end in the middle of the front end of the outer goggles connecting frame, an inner protective cover is installed at the front end of the outer goggles connecting frame along the outside of the ventilation fan, holes are provided on the inner protective cover, and a ventilation slot is provided through the middle of the end surface of the eye fitting frame.

[0021] Optionally, the telescopic spring rod includes a first inner rotating seat, the first inner rotating seat is located in the first fixed seat and is rotatably connected to the first fixed seat by an axis, a telescopic intermediate rod is fixed to the front end of the first inner rotating seat, a first limiting plate is fixed to the front end of the telescopic intermediate rod, a first outer sleeve is slidably connected to the outside of the telescopic intermediate rod, a first pressure spring is arranged along the outside of the telescopic intermediate rod between the first outer sleeve and the first limiting plate, a second limiting plate is fixed to the front end of the first outer sleeve, a second outer sleeve is slidably connected to the outside of the first outer sleeve, a second pressure spring is arranged along the outside of the first outer sleeve between the second outer sleeve and the second limiting plate, a second inner rotating seat is fixed to the front end of the second outer sleeve, the second inner rotating seat is located in the second fixed seat and is rotatably connected to the second fixed seat by an axis.

[0022] Optionally, a first mirror groove is formed on both sides of the front end surface of the outer goggles connecting frame, a first goggles lens is installed in the first mirror groove, the first goggles lens is a filter, the upper ends of the two outer goggles connecting frames are connected by an upper connecting part, and the lower ends of the two outer goggles connecting frames are connected by a lower connecting part.

[0023] Optionally, a second mirror groove is formed on both sides of the front end surface of the eye fitting frame, the size of the second mirror groove is smaller than the size of the first mirror groove, a second goggles lens is installed in the second mirror groove, the second goggles lens is a transparent sheet, and a nose bridge fitting part is integrally connected to both sides of the middle position of the rear end of the eye fitting frame.

[0024] Optionally, a back of the head fitting gasket is fixed to the rear end of the front hollow box body.

[0025] In another aspect, the present invention provides a protection method, comprising the following steps:

[0026] Step 1: During the laser cladding operation, the first goggle lens and the second goggle lens jointly protect the eyes;

[0027] Step 2: After each cladding operation is completed, when observing the processing of the workpiece, the outer goggles unit is pushed forward, the telescopic spring rod is extended, and due to the limit connection between the fixed guide bar and the outer fixed bar, the outer goggles unit is translated outward. When the fixed guide bar is separated from the outer fixed bar, the outer goggles unit is continued to be pushed outward, and the telescopic spring rod continues to extend. When the outer goggles unit is pushed to the front, due to the rotation relationship between the first fixed seat and the second fixed seat and the telescopic spring rod, the outer goggles unit is pushed to rotate upward with the connecting axis of the second fixed seat and the telescopic spring rod as the rotation axis. At the same time, the outer goggles unit is driven to rotate with the connecting shaft as the rotating shaft, the outer goggles unit moves to the upper end of the inner goggles unit and is in a vertical state, the outer goggles unit is driven to move downward and rotate the outer goggles unit so that the upper and lower fixing hooks of the outer goggles unit are hooked with the upper fixing hook of the inner goggles unit, and the lower fixing hook and the upper fixing hook are kept tightly hooked under the action of the torsion spring, and the positions of the outer goggles unit and the inner goggles unit are kept unchanged under the action of the first pressure spring and the second pressure spring on the telescopic spring rod, and the operator observes the cladding state through the second goggles lens;

[0028] Step 3: When continuing the cladding, rotate the outer goggles unit outward and pull the outer goggles unit upward at the same time. After the lower fixing hook and the upper fixing hook are disengaged, drive the outer goggles unit to move so that the outer goggles unit remains in a vertical state and rotates downward until the outer goggles unit moves to the front end of the inner goggles unit, push the outer goggles unit to reset it, and the first magnetic block is magnetically connected to the second magnetic block to maintain the connection state of the outer goggles unit and the inner goggles unit.

[0029] The eye protection device for laser cladding disclosed in the present invention has at least the following beneficial effects:

[0030] 1. During the laser cladding operation, the first goggle lens and the second goggle lens jointly protect the eyes; each time the cladding operation is completed, when observing the workpiece processing, push the outer goggle unit forward, and then push the outer goggle unit to rotate upward with the connecting axis of the second fixed seat and the telescopic spring rod as the rotation axis, and at the same time drive the outer goggle unit to rotate with the connecting shaft as the rotation axis, and the outer goggle unit moves to the upper end of the inner goggle unit, and the position of the inner goggle unit remains unchanged, and the operator observes the cladding state through the second goggle lens. That is, after the laser cladding operation, there is still a protective structure to protect the eyes, thereby effectively avoiding the problem of poor protection effect of the protective structure.

[0031] 2. The design of the telescopic spring rod realizes flexible connection and limited sliding between the outer goggle unit and the inner goggle unit, so that the device can remain stable under different usage conditions, and is easy to adjust and reset quickly, improving the convenience and stability of use.

[0032] 3. The upper and lower fixing hooks of the outer goggles unit are hooked with the upper fixing hook of the inner goggles unit, so that the outer goggles unit and the inner goggles unit still maintain a stable connection relationship after the position is changed; and the design of the torsion spring makes it possible for the outer goggles unit to tend to tilt forward even when the operator lowers his head, but the force of the torsion spring itself can keep the outer goggles unit in its original position without moving, so that the upper and lower fixing hooks of the outer goggles unit and the upper fixing hook of the inner goggles unit can maintain a tightly hooked state after being hooked, so that the goggles are not easy to fall off when used for a long time or when the operator lowers his head to observe, thereby effectively avoiding the problem of inconvenience in use.

[0033] 4. Through the design of the magnetic block, the outer goggles unit and the inner goggles unit can be firmly connected during operation, which improves the convenience and flexibility of use.

[0034] 5. By adjusting the knob to drive the meshing connection between the worm and the rotating worm wheel, the tightening belt can be quickly tightened and adjusted, so that the device can be firmly worn on the operator's head, improving the stability and comfort of wearing. Through the limit and fixing structure of the tightening belt, the tightening belt is firmly connected and effectively limited, preventing the tightening belt from loosening and falling off during use, further improving the stability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of a laser cladding eye protection device from a main viewing angle according to an embodiment of the present disclosure;

[0036] Figure 2 It is a schematic diagram of the overall structure of a rear-angle view of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0037] Figure 3 It is a top view of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0038] Figure 4 It is a front view of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0039] Figure 5 It is a cross-sectional view taken at AA of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0040] Figure 6 This is an enlarged view of the structure at position B of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0041] Figure 7 It is a schematic structural diagram of an outer goggles unit of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0042] Figure 8It is a cross-sectional structural diagram of a telescopic spring rod of a laser cladding eye protection device according to an embodiment of the present disclosure;

[0043] Fig. 9 It is a schematic structural diagram of an inner goggles unit of an eye protection device for laser cladding according to an embodiment of the present disclosure;

[0044] Fig.10 This is a main cross-sectional structural diagram of a front hollow box body of a laser cladding eye protection device according to an embodiment of the present disclosure;

[0045] Fig.11 The present invention is a top-down cross-sectional view of a front hollow box body of an eye protection device for laser cladding according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] like Figures 1 to 11 As shown, a goggles device for laser cladding includes an outer goggles unit 1 and an inner goggles unit 34. The outer goggles unit 1 includes an outer goggles connection frame 2, and the first face fitting frame 4 and the second face fitting frame 5 are connected to the two sides of the front end of the outer goggles connection frame 2, and the first magnetic blocks 13 are arranged on both sides of the middle position of the front end of the outer goggles connection frame 2. The inner goggles unit 34 includes an eye fitting frame 35, and the second magnetic blocks 40 are arranged on both sides of the middle position of the rear end of the eye fitting frame 35, and the second magnetic blocks 40 are fixed to the first magnetic blocks 13 by magnetic attraction.

[0048] The front ends of the outer eye protection connection frame 2 are fixed with fixing plates 18 on both sides, the outer side of the fixing plate 18 is rotatably connected with a connecting shaft 19, the other end of the connecting shaft 19 is fixed with a first fixing seat 21, a torsion spring 20 is arranged between the first fixing seat 21 and the fixing plate 18 along the outside of the connecting shaft 19, the front end of the first fixing seat 21 is rotatably connected with a telescopic spring rod 22, the front end of the telescopic spring rod 22 is rotatably connected with a second fixing seat 23, and the second fixing seat 23 is fixed to the eye fitting frame 35. The eye fitting frame 35 is fixed with an outer fixing bar 41 on both sides along the lower end of the telescopic spring rod 22, the inner side of the first face fitting frame 4 and the second face fitting frame 5 is fixed with a fixing guide bar 33, the inner side of the fixing guide bar 33 is provided with a slide groove that matches the outer fixing bar 41, and the outer goggles unit 1 and the inner goggles unit 34 are limitedly slidably connected through the fixing guide bar 33 and the outer fixing bar 41.

[0049] The lower ends of the first face fitting frame 4 and the second face fitting frame 5 are both fixed with lower fixing hooks 14, and the opening direction of the lower fixing hooks 14 faces backward. The two sides of the upper end of the eye fitting frame 35 are both fixed with upper fixing hooks 42, and the opening direction of the upper fixing hooks 42 faces forward. The upper fixing hooks 42 are hooked with the lower fixing hooks 14.

[0050] In the above scheme, during the laser cladding operation, the outer goggles unit and the inner goggles unit jointly protect the eyes.

[0051] After each cladding operation is completed, when observing the processing of the workpiece, the outer goggles unit is pushed forward and the telescopic spring rod is extended. When the outer goggles unit is pushed to the front, due to the rotation relationship between the first fixed seat and the second fixed seat and the telescopic spring rod, the outer goggles unit is pushed to rotate upward with the connecting axis between the second fixed seat and the telescopic spring rod as the rotation axis, and at the same time, the outer goggles unit is driven to rotate with the connecting axis as the rotation axis. The outer goggles unit moves to the upper end of the inner goggles unit and is in a vertical state, driving the outer goggles unit to move downward and rotate the outer goggles unit so that the upper and lower fixed hooks of the outer goggles unit are hooked with the upper fixed hooks of the inner goggles unit, and the lower fixed hooks and the upper fixed hooks are kept tightly hooked under the action of the torsion spring, and the positions of the outer goggles unit and the inner goggles unit are kept unchanged under the action of the first pressure spring and the second pressure spring on the telescopic spring rod, and the operator observes the cladding state through the second goggles lens.

[0052] When continuing to clad, rotate the outer goggles unit outward and pull the outer goggles unit upward at the same time. After the lower fixing hook and the upper fixing hook are disengaged, the outer goggles unit is driven to move so that the outer goggles unit remains in a vertical state and rotates downward until the outer goggles unit moves to the front end of the inner goggles unit, and the outer goggles unit is pushed to reset the outer goggles unit. The first magnetic block is magnetically connected to the second magnetic block to maintain the connection state of the outer goggles unit and the inner goggles unit.

[0053] Exemplarily, a side connecting plate 15 is fixed to the outer front end of the first face fitting frame 4 and the second face fitting frame 5, and a rectangular through groove 16 is opened on the left and right sides of the side connecting plate 15, and a vertical fixing rod 17 is arranged in the rectangular through groove 16. The first face fitting frame 4 and the second face fitting frame 5 are respectively connected to the first tightening belt 46 and the second tightening belt 47 on the outside through the side connecting plate 15.

[0054] In the above solutions, the presence of the tightening strap enables the device to be worn firmly on the operator's head.

[0055] Exemplarily, the other ends of the first tightening belt 46 and the second tightening belt 47 are connected to the front hollow box 43, and the lower end of the front end of one side of the front hollow box 43 is installed with an adjusting knob 48. The lower end of the front end of the front hollow box 43 is rotatably connected with a driving worm 49, and the driving worm 49 is coaxially fixed with the adjusting knob 48. A rotating worm wheel 50 is installed along the rear end of the driving worm 49 inside the front hollow box 43, and the rotating worm wheel 50 is meshed with the driving worm 49. The upper end of the rotating worm wheel 50 is coaxially connected with a first tightening column 51, and the upper end of the first tightening column 51 is coaxially connected with a first rotating gear 52. A second rotating gear 53 is arranged along the front end of the first rotating gear 52 inside the front hollow box 43, and the second rotating gear 53 is meshed with the first rotating gear 52. The lower end of the second rotating gear 53 is coaxially connected with a second tightening column 54.

[0056] In the above scheme, the meshing connection between the worm and the rotating worm wheel is driven by the adjusting knob, so that the tightening belt can be quickly tightened and adjusted, so that the device can be worn firmly on the operator's head, improving the stability and comfort of wearing.

[0057] Exemplarily, the front and rear ends of the inner and outer side surfaces of the inner wall of the front hollow box body 43 are both provided with first limiting rollers 57, and the rear ends of the two first limiting rollers 57 on the outer rear end are provided with second limiting rollers 58. A side through groove 45 is opened between each group of front and rear two first limiting rollers 57 along the side surface of the front hollow box body 43, and the first limiting column 55 and the second limiting column 56 are respectively installed on both sides of the interior of the front hollow box body 43, and one end of the first tightening belt 46 and the second tightening belt 47 are respectively fixed to the two outer sides of the front hollow box body 43.

[0058] The other end of the first tightening belt 46 passes through between the first limiting roller 57 and the second limiting roller 58, bypasses the vertical fixing rod 17, is introduced from between the two outer first limiting rollers 57, passes through the side through the groove 45, is introduced from between the two inner first limiting rollers 57, then bypasses the first limiting column 55 from the front end, and finally bypasses the first tightening column 51 from the front end and is fixed to the first tightening column 51.

[0059] The other end of the second tightening belt 47 passes through between the first limiting roller 57 and the second limiting roller 58, bypasses the vertical fixing rod 17, is introduced from between the two outer first limiting rollers 57, passes through the side through the groove 45, and is introduced from between the two inner first limiting rollers 57, then bypasses the second limiting column 56 from the rear end, and finally bypasses the second tightening column 54 from the front end and is fixed to the second tightening column 54.

[0060] In the above scheme, the adjusting knob is rotated, and the adjusting knob drives the driving worm to rotate, and the first tightening column is driven to rotate through the meshing connection relationship between the driving worm and the rotating worm wheel, and the second tightening column is driven to rotate synchronously in the opposite direction through the meshing connection relationship between the first rotating gear and the second rotating gear. The first tightening column and the second tightening column drive one end of the first tightening belt and the second tightening belt to tighten, so that the device can be stably worn on the operator's head.

[0061] Exemplarily, the upper and lower end surfaces of the first face fitting frame 4 and the second face fitting frame 5 are both provided with ventilation holes 8, an air inlet slot 9 is provided in the middle of the end surface of the outer eye protection connecting frame 2, a ventilation fan 12 is installed at the upper end in the middle of the front end of the outer eye protection connecting frame 2, an inner protective cover 11 is installed along the outside of the ventilation fan 12 at the front end of the outer eye protection connecting frame 2, and holes are provided on the inner protective cover 11, and a ventilation through slot 38 is provided in the middle of the end surface of the eye fitting frame 35.

[0062] In the above scheme, the ventilation fan works, draws external air through the air inlet slot and sends it into the internal space of the outer goggles unit, and the airflow flows in the outer goggles unit and the inner goggles unit, and flows out through the ventilation holes. The design of the ventilation fan effectively introduces external air, and flows out through the ventilation holes and ventilation through slots, realizing air circulation inside the device, effectively reducing the stuffiness during operation and improving the comfort of use.

[0063] Exemplarily, the telescopic spring rod 22 includes a first inner rotating seat 24, which is located in the first fixed seat 21 and is rotatably connected to the first fixed seat 21 by an axis, a telescopic intermediate rod 25 is fixed at the front end of the first inner rotating seat 24, a first limiting plate 26 is fixed at the front end of the telescopic intermediate rod 25, a first outer sleeve 28 is slidably connected to the outside of the telescopic intermediate rod 25, a first pressure spring 27 is arranged along the outside of the telescopic intermediate rod 25 between the first outer sleeve 28 and the first limiting plate 26, a second limiting plate 29 is fixed at the front end of the first outer sleeve 28, a second outer sleeve 31 is slidably connected to the outside of the first outer sleeve 28, a second pressure spring 30 is arranged along the outside of the first outer sleeve 28 between the second outer sleeve 31 and the second limiting plate 29, a second inner rotating seat 32 is fixed at the front end of the second outer sleeve 31, the second inner rotating seat 32 is located in the second fixed seat 23 and is rotatably connected to the second fixed seat 23 by an axis.

[0064] In the above scheme, it mainly plays the role of limiting the extension and contraction, and the existence of the pressure spring allows each structure to reset automatically. The operator only needs to support the entire structure to avoid its rapid movement causing discomfort in use.

[0065] Exemplarily, a first mirror groove 3 is formed on both sides of the front end surface of the outer goggles connecting frame 2, and a first goggles lens 10 is installed in the first mirror groove 3, and the first goggles lens 10 is a filter. The upper ends of the two outer goggles connecting frames 2 are connected by an upper connecting part 6, and the lower ends of the two outer goggles connecting frames 2 are connected by a lower connecting part 7.

[0066] In the above scheme, the first goggle lens can prevent laser damage to the eyes and play a protective role.

[0067] Exemplarily, a second mirror groove 36 is formed on both sides of the front end surface of the eye fitting frame 35, the size of the second mirror groove 36 is smaller than the size of the first mirror groove 3, a second goggle lens 37 is installed in the second mirror groove 36, the second goggle lens 37 is a transparent sheet, and a nose bridge fitting part 39 is integrally connected to both sides of the middle position of the rear end of the eye fitting frame 35.

[0068] In the above scheme, the second goggles lens prevents the gas diffusion during laser operation from damaging the eyes, and the second goggles lens continues to provide protection during the entire operation.

[0069] Exemplarily, a back of the head fitting gasket 44 is fixed to the rear end of the front hollow box body 43 .

[0070] In the above scheme, the device is worn on the outside of the head from the upper end of the head downward, and the back of the head fits the gasket to the back end of the head.

[0071] On the other hand, an embodiment of the present disclosure provides a protection method, comprising the following steps:

[0072] Step 1: During the laser cladding operation, the first goggle lens 10 and the second goggle lens 37 jointly protect the eyes.

[0073] Step 2: After each cladding operation is completed, when observing the processing of the workpiece, the outer goggles unit 1 is pushed forward, the telescopic spring rod 22 is extended, and due to the limit connection between the fixed guide bar 33 and the outer fixing bar 41, the outer goggles unit 1 is translated outward. When the fixed guide bar 33 is separated from the outer fixing bar 41, the outer goggles unit 1 is continued to be pushed outward, and the telescopic spring rod 22 continues to extend. When the outer goggles unit 1 is pushed to the front, due to the rotation relationship between the first fixing seat 21 and the second fixing seat 23 and the telescopic spring rod 22, the outer goggles unit 1 is pushed to rotate upward with the connecting axis between the second fixing seat 23 and the telescopic spring rod 22 as the rotation axis, and the outer goggles unit 1 is driven to rotate upward with the connecting axis between the second fixing seat 23 and the telescopic spring rod 22 as the rotation axis. The outer goggles unit 1 rotates with the connecting shaft 19 as the rotation axis, and the outer goggles unit 1 moves to the upper end of the inner goggles unit 34 and is in a vertical state, driving the outer goggles unit 1 to move downward and rotate the outer goggles unit 1 so that the upper and lower fixing hooks 14 of the outer goggles unit 1 are hooked with the upper fixing hook 42 on the inner goggles unit 34, and the lower fixing hook 14 and the upper fixing hook 42 are kept tightly hooked under the action of the torsion spring 20, and the positions of the outer goggles unit 1 and the inner goggles unit 34 are kept unchanged under the action of the first pressure spring 27 and the second pressure spring 30 on the telescopic spring rod 22, and the operator observes the cladding state through the second goggles lens 37.

[0074] Step three: When continuing the cladding, rotate the outer goggles unit 1 outward and pull the outer goggles unit 1 upward at the same time. After the lower fixing hook 14 and the upper fixing hook 42 are disengaged, drive the outer goggles unit 1 to move so that the outer goggles unit 1 remains in a vertical state and rotates downward until the outer goggles unit 1 moves to the front end of the inner goggles unit 34, push the outer goggles unit 1 to reset the outer goggles unit 1, and the first magnetic block 13 is magnetically connected to the second magnetic block 40 to maintain the connection state of the outer goggles unit 1 and the inner goggles unit 34.

[0075] In the above scheme, during the laser cladding operation, the first goggle lens and the second goggle lens jointly protect the eyes. Each time the cladding operation is completed, when observing the workpiece processing, the outer goggle unit moves to the upper end of the inner goggle unit, the position of the inner goggle unit remains unchanged, and the operator observes the cladding state through the second goggle lens. The upper and lower fixing hooks of the outer goggle unit are hooked with the upper fixing hook of the inner goggle unit so that the outer goggle unit and the inner goggle unit still maintain a stable connection relationship after the position change.

[0076] The design of the torsion spring allows the outer goggles unit to remain in its original position without moving even when the operator lowers his head, so that the goggles are not likely to fall off when used for a long time or when the operator lowers his head to observe.

[0077] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. An eye protection device for laser cladding, wherein: include: An outer visor unit and an inner visor unit; The outer goggles unit comprises an outer goggles connection frame, the front ends of which are respectively connected to a first face fitting frame and a second face fitting frame, and first magnetic blocks are arranged on both sides of the middle of the front end of the outer goggles connection frame; The inner goggle unit comprises an eye fitting frame, and second magnetic blocks are arranged on both sides of the middle position of the rear end of the eye fitting frame, and the second magnetic blocks are magnetically fixed to the first magnetic blocks; Fixed plates are fixed on both sides of the front end of the outer eye protection connection frame, the outer side of the fixed plate is rotatably connected to a connecting shaft, the other end of the connecting shaft is fixed to a first fixed seat, a torsion spring is arranged between the first fixed seat and the fixed plate along the outside of the connecting shaft, the front end of the first fixed seat is rotatably connected to a telescopic spring rod, the front end of the telescopic spring rod is rotatably connected to a second fixed seat, and the second fixed seat is fixed to the eye fitting frame; External fixing strips are fixed along the lower ends of the telescopic spring rods on both sides of the eye fitting frame, fixed guide strips are fixed inside the first face fitting frame and the second face fitting frame, and sliding grooves that match the external fixing strips are provided on the inner sides of the fixed guide strips, and the external goggles unit and the internal goggles unit are limitedly slidably connected through the fixed guide strips and the external fixing strips; The lower ends of the first face fitting frame and the second face fitting frame are both fixed with lower fixing hooks, the opening direction of the lower fixing hooks faces backwards, and both sides of the upper end of the eye fitting frame are fixed with upper fixing hooks, the opening direction of the upper fixing hooks faces forwards, and the upper fixing hooks are hooked with the lower fixing hooks.

2. The eye protection device for laser cladding according to claim 1, wherein: A side connecting plate is fixed to the outer front end of the first face fitting frame and the second face fitting frame, and a rectangular through groove is opened on the side connecting plate on the left and right sides, and a vertical fixing rod is arranged in the rectangular through groove, and the first face fitting frame and the second face fitting frame are respectively connected to the first tightening belt and the second tightening belt through the side connecting plate.

3. The eye protection device for laser cladding according to claim 2, wherein: The other ends of the first tightening belt and the second tightening belt are connected to a front hollow box body, and an adjustment knob is installed at the lower end of the front end of one side of the front hollow box body; The lower end of the front end of the front hollow box body is rotatably connected to a driving worm, and the driving worm is coaxially fixed with the adjusting knob. A rotating worm wheel is installed inside the front hollow box body along the rear end of the driving worm, and the rotating worm wheel is meshed with the driving worm. The upper end of the rotating worm wheel is coaxially connected to a first tightening column, and the upper end of the first tightening column is coaxially connected to a first rotating gear. A second rotating gear is arranged inside the front hollow box body along the front end of the first rotating gear, and the second rotating gear is meshed with the first rotating gear. The lower end of the second rotating gear is coaxially connected to a second tightening column.

4. The eye protection device for laser cladding according to claim 3, wherein: The front and rear ends of the inner and outer side surfaces of the inner wall of the front hollow box body are both provided with first limiting rollers, and the rear ends of the two first limiting rollers on the outer rear end are provided with second limiting rollers, and the side surface of the front hollow box body is provided with a side through-through groove between each group of the two first limiting rollers on the front and rear sides, and the first limiting column and the second limiting column are respectively installed on both sides of the inner part of the front hollow box body, and one end of the first tightening belt and the second tightening belt are respectively fixed to the two outer sides of the front hollow box body; The other end of the first tightening belt passes through between the first limiting roller and the second limiting roller, bypasses the vertical fixed rod, is introduced from between the two outer first limiting rollers, passes through the side through the groove, and is introduced from between the two inner first limiting rollers, then bypasses the first limiting column from the front end, and finally bypasses the first tightening column from the front end and is fixed to the first tightening column; The other end of the second tightening belt passes through between the first limiting roller and the second limiting roller, bypasses the vertical fixed rod, is introduced from between the two outer first limiting rollers, passes through the side through the groove, and is then introduced from between the two inner first limiting rollers, then bypasses the second limiting column from the rear end, and finally bypasses the second tightening column from the front end and is fixed to the second tightening column.

5. The eye protection device for laser cladding according to claim 1, wherein: The upper and lower end surfaces of the first face fitting frame and the second face fitting frame are both provided with ventilation holes, an air inlet slot is provided in the middle of the end surface of the outer eye protection connecting frame, a ventilation fan is installed at the upper end in the middle of the front end of the outer eye protection connecting frame, an inner protective cover is installed along the outside of the ventilation fan at the front end of the outer eye protection connecting frame, a hole slot is provided on the inner protective cover, and a ventilation through slot is provided in the middle of the end surface of the eye fitting frame.

6. The eye protection device for laser cladding according to claim 1, wherein: The telescopic spring rod includes a first inner rotating seat, the first inner rotating seat is located in the first fixed seat and is rotatably connected to the first fixed seat by an axis, a telescopic intermediate rod is fixed to the front end of the first inner rotating seat, a first limiting plate is fixed to the front end of the telescopic intermediate rod, a first outer sleeve is slidably connected to the outside of the telescopic intermediate rod, a first pressure spring is arranged along the outside of the telescopic intermediate rod between the first outer sleeve and the first limiting plate, a second limiting plate is fixed to the front end of the first outer sleeve, a second outer sleeve is slidably connected to the outside of the first outer sleeve, a second pressure spring is arranged along the outside of the first outer sleeve between the second outer sleeve and the second limiting plate, a second inner rotating seat is fixed to the front end of the second outer sleeve, the second inner rotating seat is located in the second fixed seat and is rotatably connected to the second fixed seat by an axis.

7. The eye protection device for laser cladding according to claim 6, wherein: A first mirror groove is formed on both sides of the front end surface of the outer goggles connecting frame, in which a first goggles lens is installed, and the first goggles lens is a filter. The upper ends of the two outer goggles connecting frames are connected by an upper connecting part, and the lower ends of the two outer goggles connecting frames are connected by a lower connecting part.

8. The eye protection device for laser cladding according to claim 7, wherein: A second mirror groove is formed on both sides of the front end surface of the eye fitting frame, the size of the second mirror groove is smaller than the size of the first mirror groove, a second goggles lens is installed in the second mirror groove, the second goggles lens is a transparent sheet, and a nose bridge fitting part is integrally connected to both sides of the middle position of the rear end of the eye fitting frame.

9. The eye protection device for laser cladding according to claim 3, wherein: A back of head fitting gasket is fixed to the rear end of the front hollow box body.

10. A protection method, implemented based on the eye protection device for laser cladding according to claim 8, wherein: The steps include: Step 1: During the laser cladding operation, the first goggle lens and the second goggle lens jointly protect the eyes; Step 2: After each cladding operation is completed, when observing the processing of the workpiece, the outer goggles unit is pushed forward, the telescopic spring rod is extended, and due to the limit connection between the fixed guide bar and the outer fixed bar, the outer goggles unit is translated outward. When the fixed guide bar is separated from the outer fixed bar, the outer goggles unit is continued to be pushed outward, and the telescopic spring rod continues to extend. When the outer goggles unit is pushed to the front, due to the rotation relationship between the first fixed seat and the second fixed seat and the telescopic spring rod, the outer goggles unit is pushed to rotate upward with the connecting axis of the second fixed seat and the telescopic spring rod as the rotation axis. At the same time, the outer goggles unit is driven to rotate with the connecting shaft as the rotating shaft, the outer goggles unit moves to the upper end of the inner goggles unit and is in a vertical state, the outer goggles unit is driven to move downward and rotate the outer goggles unit so that the upper and lower fixing hooks of the outer goggles unit are hooked with the upper fixing hooks of the inner goggles unit, and the lower fixing hooks and the upper fixing hooks are kept tightly hooked under the action of the torsion spring, and the positions of the outer goggles unit and the inner goggles unit are kept unchanged under the action of the first pressure spring and the second pressure spring on the telescopic spring rod, and the operator observes the cladding state through the second goggles lens; Step 3: When continuing the cladding, rotate the outer goggles unit outward and pull the outer goggles unit upward at the same time. After the lower fixing hook and the upper fixing hook are disengaged, drive the outer goggles unit to move so that the outer goggles unit remains in a vertical state and rotates downward until the outer goggles unit moves to the front end of the inner goggles unit, push the outer goggles unit to reset it, and the first magnetic block is magnetically connected to the second magnetic block to maintain the connection state of the outer goggles unit and the inner goggles unit.

Images