Auxiliary operation device for protective lens of laser welding machine

Abstract

A laser welding machine protection lens auxiliary operation device comprises an outer frame, the outer side of the outer frame is slidably connected with two sealing plates, the two sealing plates seal the outer frame on the outer side, the inner side of the outer frame is slidably connected with a movable frame, the inner side of the movable frame is slidably connected with a lens seat, a spring is connected between the movable frame and the lens seat, and the lower portion of the outer frame is connected with a clamping device. The clamping device comprises a clamping seat, a driving seat is slidably connected into the clamping seat, a connecting rod and a clamping plate are connected between the clamping seat and the driving seat, and the clamping plate controls connection and disconnection of the moving frame, the lens seat and the outer frame. The protection lens is ensured to be clean in use and replacement processes, and the replacement efficiency of the protection lens of the laser welding machine is high.

Description

Technical Field

[0001] The invention relates to the field of laser welding machines, and in particular to a protective lens auxiliary operating device for a laser welding machine. Background Art

[0002] The protective lens of the laser welding machine is a consumable of the laser welding machine. It needs to be replaced frequently during the use of the laser welding machine, which not only affects the use efficiency of the laser welding machine, but also increases the use cost of the laser welding machine. The reason for replacing the protective lens of the laser welding machine is that the protective lens is contaminated and ablated by foreign matter during use. Therefore, the protective lens must be kept as clean as possible during the use and replacement process. The replacement and use process of the existing protective lens has the following problems: first, contamination is caused by the unsealed lens mounting seat during use; second, during the replacement of the protective lens, contaminants enter the lens mounting seat; third, replacing the protective lens is relatively inefficient, which not only affects the work efficiency but also causes contaminants to enter the lens mounting part. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a laser welding machine protective lens auxiliary operation device which prevents pollutants from entering the working cavity of the laser welding machine lens, ensures the cleanliness of the lens during use and replacement, and has high efficiency in replacing the laser welding machine protective lens.

[0004] The purpose of the present invention is to be achieved through the following technical solutions: A laser welding machine protective lens auxiliary operation device comprises an outer frame, the outer side of the outer frame is slidably connected to two sealing plates, the two sealing plates form a seal with the outer frame on the outer side, the inner side of the outer frame is slidably connected to a moving frame, the inner side of the moving frame is slidably connected to a lens seat, a spring is connected between the moving frame and the lens seat, the lower part of the outer frame is connected to a clamping device, the clamping device comprises a clamping seat, the inside of the clamping seat is slidably connected to a driving seat, a connecting rod and a clamping plate are connected between the clamping seat and the driving seat, and the clamping plate controls the connection and disconnection of the moving frame, the lens seat and the outer frame. The outer frame is a box-shaped structure with openings on the sides and the top, and two left-right symmetrical support plates are provided on the top of the outer frame, a middle groove is provided in the middle of the support plate on each side, and symmetrical side grooves are provided on the front and rear sides of the support plate on each side, and the side grooves are divided into oblique grooves and straight grooves, a spring plate is provided in the middle of the front and rear sides of the outer frame, and a sealing plate is provided on the inner side of the support plate on each side, and the sealing plate is a right-angled structure, and the sealing plate pins on both sides of the lower part of each sealing plate are slidably connected to the corresponding side grooves, and the guide strips on the outside of each sealing plate are slidably connected to the corresponding middle groove, and a No. 2 spring is provided between the front and rear sides of each sealing plate and the outer frame, and the corresponding spring plates and sealing plate pins are connected on both sides of the No. 2 spring, and a cover plate is fixedly connected to the side opening of the outer frame. The lower part of the movable frame is provided with a step block, and the lower end surface of the step block is provided with two symmetrical guide shafts. The lower part of the movable frame is provided with a rectangular frame, and the end surface is provided with two symmetrical lens seat guide holes. Two symmetrical lens seat grooves are provided on both sides of the lens seat. The two lens seat guide holes of the lens seat pass through the two guide shafts from the lower part. The lens seat guide holes are slidably connected to the guide shafts. The lower part of the guide shaft is connected to a nut. Two No. 1 springs are provided between the movable frame and the lens seat. The No. 1 spring is sleeved on the outer side of the guide shaft. The upper and lower sides of the No. 1 spring respectively resist the movable frame and the lens seat. The two sides of the frame pass through the lens seat grooves on both sides of the lens seat, and the lens seat is slidably connected to the inner side of the outer frame. The inner sides of the outer frame are provided with limit plates, and a limit plate groove is provided in the middle of the limit plate. The two sides of the frame pass through the limit plate grooves, and the lowermost position of the lens seat is positioned on the limit plate. The coupling seat is a box-shaped structure with a side opening, a bottom groove is provided at the bottom of the coupling seat cavity, a hinge seat is provided at the rear side of the bottom groove, a coupling seat spring pin is provided at the lower part of the coupling seat cavity, a coupling seat hole is provided at the upper part of the coupling seat cavity, a driving seat pin is provided at the upper part of the driving seat, a driving seat spring pin is provided at the lower part of the driving seat, the driving seat sliding connection frame coupling seat cavity, the driving seat pin is slidably connected to the coupling seat hole, a No. 3 spring is provided between the driving seat and the coupling seat, and the upper and lower sides of the No. 3 spring are respectively fixedly connected to the coupling seat spring pin and the driving seat spring pin.

[0005] A rear seat is provided on the rear side of the driving seat, a rear seat groove is provided in the middle of the rear seat, an inclined waist groove is provided on the side of the rear seat, the upper part of the waist groove is inclined at a certain angle toward one side of the clamping seat, the clamping plate is a C-shaped structure, a clamping hook is provided on one side of the clamping plate, a clamping plate pin is provided on the other side of the clamping plate, a clamping plate hinge pin is provided at the inflection point on one side of the clamping plate pin, the rear seat passes through the bottom groove of the clamping seat, the driving seat is placed in the rear seat groove, the clamping plate hinge pin is hinged to the hinge seat, and the clamping plate pin is slidably connected to the waist groove.

[0006] Beneficial effect: when the device is not equipped with a protective lens, the sealing plates on both sides will block the opening on the upper part of the outer frame under the action of the No. 2 spring to prevent contaminants from entering the inner part of the outer frame. After the movable frame and the lens mount are installed, a seal is formed at the step block and the limit plate opening at the lower part of the movable frame. The sealing plate is reset under the action of the No. 2 spring, and the sealing plate blocks the movable frame on the outside to further form a seal, effectively preventing contaminants from entering the limit plate during operation, ensuring the cleanliness of the inner part of the outer frame, and preventing contaminants from contaminating the lens and causing damage to the lens. The clamping device cooperates with the movable frame and the lens mount, so that when installing and disassembling the movable frame and the lens mount, it is only necessary to simply push the movable frame, thereby improving the efficiency of replacing the protective lens of the laser welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic structural diagram of the laser welding machine protective lens auxiliary operation device of the present invention.

[0008] Figure 2 This is a schematic structural diagram of the protective lens installed according to the present invention.

[0009] Figure 3 This is a schematic diagram of the internal structure of the laser welding machine protective lens auxiliary operation device described in the present invention.

[0010] Figure 4 This is a schematic diagram of the internal structure when the protective lens is installed according to the present invention.

[0011] Figure 5 It is a structural schematic diagram of the connection between the clamping device 200 and the movable frame 130 according to the present invention.

[0012] Figure 6 It is a structural schematic diagram of the clamping device 200 and the movable frame 130 of the present invention when they are separated.

[0013] Figure 7 This is a schematic diagram of the outer frame structure of the present invention.

[0014] Figure 8 This is a schematic diagram of the sealing plate structure of the present invention.

[0015] Fig. 9 It is a schematic diagram of the structure of the mobile rack described in the present invention.

[0016] Fig.10 It is a schematic diagram of the lens mount structure of the present invention.

[0017] Fig.11 It is a schematic diagram of the rear structure of the lens mount of the present invention.

[0018] Fig.12 It is a schematic structural diagram of the clamping device of the present invention when it is working.

[0019] Fig.13 It is a schematic structural diagram of the clamping device described in the present invention.

[0020] Fig.14 It is a schematic diagram of the side structure of the clamping device of the present invention when it is working.

[0021] Fig.15 It is a schematic diagram of the side structure of the clamping device described in the present invention.

[0022] Fig.16 It is a schematic diagram of the rear structure of the clamping device of the present invention when it is working.

[0023] Fig.17 It is a schematic diagram of the rear structure of the clamping device described in the present invention.

[0024] Fig.18 It is a schematic diagram of the structure of the card connector according to the present invention.

[0025] Fig.19 It is a schematic diagram of the rear structure of the card connector according to the present invention.

[0026] Fig. 20 It is a schematic diagram of the structure of the driving seat described in the present invention.

[0027] Fig.21 It is a schematic diagram of the rear structure of the driving seat according to the present invention.

[0028] Fig. 22 The front structure of the drive seat of the present invention is shown in FIG. Fig.23 This is a schematic diagram of the connecting rod structure of the present invention.

[0029] Fig.24 It is a schematic diagram of the structure of the clamping plate described in the present invention.

[0030] In the figure: 110, outer frame; 111, limit plate; 112, limit plate groove; 113, support plate; 114, middle groove; 115, side groove; 116, oblique groove; 117, straight groove; 118, spring plate; 120, sealing plate; 121, guide strip; 122, sealing plate pin; 130, movable frame; 131, step block; 132, guide shaft; 133, frame; 134, top plate; 150, lens seat; 151, lens seat guide hole; 152, lens seat groove; 153, through hole; 154, countersunk hole; 155, card plate; 160, No. 1 spring; 170, No. 2 spring; 180, cover plate; 190, nut; 200, clamping device; 210, clamping seat; 211, inner cavity; 212, bottom slot; 213, hinge seat; 214, snap-fit ​​seat hole; 215, snap-fit ​​seat spring pin; 216, reaming hole; 220, drive seat; 221, drive seat pin; 222, back seat; 223, back seat slot; 224, waist slot; 225, drive seat spring pin; 226, drive slot; 2261, slot No. 1; 2262, slot No. 2; 2263, slot No. 3; 2264, slot No. 4; 2265, slot No. 5; 2266, slot No. 6; 2267, turning point No. 1; 2268, turning point No. 2; 2269, turning point No. 3; 230, connecting rod; 231, connecting rod hinge pin; 232, connecting rod pin shaft; 240, snap-fit ​​plate; 241, hook; 242, snap-fit ​​plate pin shaft; 243, snap-fit ​​plate hinge pin; 250, spring No. 3. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below according to the accompanying drawings and embodiments: refer to Figures 1 to 6 A laser welding machine protective lens auxiliary operation device comprises an outer frame 110, wherein the outer side of the outer frame 110 is slidably connected to two sealing plates 120, wherein the two sealing plates 120 form a seal with the outer frame 110 on the outer side, wherein the inner side of the outer frame 110 is slidably connected to a moving frame 130, wherein the inner side of the moving frame 130 is slidably connected to a lens mount 150, wherein a spring is connected between the moving frame 130 and the lens mount 150, wherein the lower part of the outer frame 110 is connected to a clamping device 200, wherein the clamping device 200 comprises a clamping seat 210, wherein the inner side of the clamping seat 210 is slidably connected to a driving seat 220, wherein a connecting rod 230 and a clamping plate 240 are connected between the clamping seat 210 and the driving seat 220, wherein the clamping plate 240 controls the connection and disconnection of the moving frame 130, the lens mount 150 and the outer frame 110.

[0032] refer to Figure 7 to Figure 8The outer frame 110 is a box-shaped structure with openings on the sides and the top. Two symmetrical support plates 113 are provided on the upper part of the outer frame 110. A middle groove 114 is provided in the middle of the support plate 113 on each side. Symmetrical side grooves 115 are provided on the front and rear sides of the support plate 113 on each side. The side grooves 115 are divided into oblique grooves 116 and straight grooves 117. A spring plate 118 is provided in the middle of the front and rear sides of the outer frame 110. A sealing plate 120 is provided on the inner side of the support plate 113 on each side. The sealing plate 120 is a right-angled structure. The sealing plate pins 122 on both sides of the lower part of each sealing plate 120 are respectively slidably connected to the corresponding side grooves 115. The guide strips 121 on the outer side of each sealing plate 120 are slidably connected to the corresponding middle groove 114. A No. 2 spring 170 is provided between the front and rear sides of each sealing plate 120 and the outer frame 110. The two sides of the No. 2 spring 170 are respectively connected to the corresponding spring plate 118 and the sealing plate pin 122. The cover plate 180 is fixedly connected to the side opening of the outer frame 110. The sealing plates 120 are made of rubber or plastic elastic materials to ensure sealing. The sealing plates 120 on both sides close and open the upper part of the outer frame 110 under the action of the side grooves 115. When the sealing plates 120 on both sides are at the lower part of the straight grooves 117, the two sealing plates 120 close the upper part of the outer frame 110. When the sealing plates 120 slide to the upper part of the inclined grooves 116, the middle of the sealing plates 120 opens to provide a passage for the moving frame 130 and the lens holder 150 to enter and exit. The second spring 170 can ensure that the sealing plates 120 on both sides are always closed. Regardless of whether there are moving frames 130 and lens holders 150 in the outer frame 110, the sealing plates 120 on both sides close the upper part of the outer frame 110, which not only ensures that pollutants cannot enter the inner part of the outer frame 110 when in the working state, but also ensures that pollutants cannot enter the inner part of the outer frame 110 when replacing the protective lens, thereby ensuring the cleanliness of the inner part of the outer frame 110 and preventing pollutants from contaminating the lens and causing damage to the lens. The connecting device 200 cooperates with the moving frame 130 and the lens holder 150, so that when installing and removing the moving frame 130 and the lens holder 150, it is only necessary to simply push the moving frame 130, thereby improving the efficiency of replacing the protective lens of the laser welding machine.

[0033] refer to Figure 7 , Figures 9 to 11A step block 131 is provided at the bottom of the movable frame 130, and two symmetrical guide shafts 132 are provided at the lower end surface of the step block 131. A rectangular frame 133 is provided at the bottom of the movable frame 130, and two symmetrical lens seat guide holes 151 are provided at the end surface. Two symmetrical lens seat grooves 152 are provided on both sides of the lens seat 150. The two lens seat guide holes 151 of the lens seat 150 pass through the two guide shafts 132 from the bottom, and the lens seat guide holes 151 are slidably connected to the guide shafts 132. The lower part of the guide shaft 132 is connected to a nut 190. Two No. 1 springs 160 are provided between the movable frame 130 and the lens seat 150. The No. 1 spring 160 is sleeved on the outer side of the guide shaft 132. The upper and lower sides of the No. 1 spring 160 respectively resist the movable frame 130 and the lens seat 150. The two sides of the frame 133 pass through the lens seat grooves 152 on both sides of the lens seat 150, and the lens seat 150 is slidably connected to the inner side of the outer frame 110.

[0034] refer to Figure 7 , Figures 9 to 11 The position plate 111 is provided with a limit plate groove 112 in the middle, and the frame 133 passes through the limit plate groove 112 on both sides, and the bottom of the lens holder 150 is positioned on the limit plate 111. The step block 131 is made of rubber or plastic elastic material to ensure sealing. The cover plate 180 and the inner side of the outer frame 110 form a rectangular space, and the step block 131 connects the rectangular space formed by the cover plate 180 and the outer frame 110. A seal is formed between the step block 131 and the outer frame 110, so that when the device is working, contaminants are further prevented from entering the working cavity of the protective lens.

[0035] refer to Figure 12 to Figure 24 The card seat 210 is a box-shaped structure with a side opening. A bottom groove 212 is provided at the bottom of the card seat 210 cavity, and a hinge seat 213 is provided on the rear side of the bottom groove 212. A card seat spring pin 215 is provided at the lower part of the card seat 210 cavity, and a card seat hole 214 is provided at the upper part of the card seat 210 cavity. A drive seat pin 221 is provided at the upper part of the drive seat 220, and a drive seat spring pin 225 is provided at the lower part of the drive seat 220. The drive seat 220 is slidably connected to the card seat 210 cavity, and the drive seat pin 221 is slidably connected to the card seat hole 214. A No. 3 spring 250 is provided between the drive seat 220 and the card seat 210, and the upper and lower sides of the No. 3 spring 250 are respectively fixedly connected to the card seat spring pin 215 and the drive seat spring pin 225.

[0036] refer to Figure 12 to Figure 24A rear seat 222 is provided at the rear side of the driving seat 220, a rear seat groove 223 is provided in the middle of the rear seat 222, an inclined waist groove 224 is provided on the side of the rear seat 222, and the upper part of the waist groove 224 is inclined at a certain angle toward the side of the clamping seat 210, the clamping plate 240 is a C-shaped structure, a clamping hook 241 is provided on one side of the clamping plate 240, and a clamping plate pin 242 is provided on the other side of the clamping plate 240, and a clamping plate hinge pin 243 is provided at the inflection point on one side of the clamping plate pin 242, the rear seat 222 passes through the bottom groove 212 of the clamping seat 210, the driving seat 220 is placed in the rear seat groove 223, the clamping plate hinge pin 243 is hinged to the hinge seat 213, and the clamping plate pin 242 is slidably connected to the waist groove 224.

[0037] refer to Figure 12 to Figure 24 The end surface of the driving seat 220 is provided with a driving groove 226, which is a diamond-shaped structure with a depression on the upper part. The sides of the driving groove 226 are the first groove 2261, the second groove 2262, the third groove 2263, the fourth groove 2264, the fifth groove 2265, and the sixth groove 2266. The connection between the fourth groove 2264 and the fifth groove 2265 forms a depression and forms a first inflection point 2267 and a second inflection point 2268. 68, the first turning point 2267 and the second turning point 2268 are staggered in the vertical direction, the first groove 2261 and the second groove 2262 form the third turning point 2269, and a connecting rod 230 is provided between the driving seat 220 and the clamping seat 210, the connecting rod hinge pin 231 at the lower part of the connecting rod 230 is hinged to the hinge hole 216 at the lower end face of the clamping seat 210, and the connecting rod pin shaft 232 at the upper part of the connecting rod 230 is slidably connected to the driving groove 226.

[0038] refer to Figures 1 to 6 The driving seat pin 221 at the upper part of the driving seat 220 is connected to the top plate 134 at the lower part of the frame 133 , and the hook 241 at one side of the clamping plate 240 is connected to the lower part of the frame 133 .

[0039] A method for using a laser welding machine protective lens auxiliary operation device. In normal conditions, the drive seat 220 tends to move upward under the action of a No. 3 spring 250. When the moving frame 130 and the lens seat 150 are not installed, the connecting rod pin 232 of the connecting rod 230 stops at the No. 3 inflection point 2269. At this time, the drive seat 220 is at the top of the clamping seat 210, and the hook 241 on the upper part of the clamping plate 240 is away from the clamping seat 210. When the moving frame 130 and the lens seat 150 are installed, the moving frame 130 is pushed downward along the inner cavity of the outer frame 110. When the top plate 134 at the bottom of the moving frame 130 contacts the upper end surface of the driving seat pin 221, the driving seat 220 is pushed to move downward. , the third spring 250 is compressed, and the first spring 160 between the moving frame 130 and the lens seat 150 is compressed. When the top plate 134 at the bottom of the frame 133 contacts the upper end surface of the driving seat pin 221, the driving seat 220 is pushed downward, and the connecting rod pin 232 slides along one side of the driving groove 226 from the third inflection point 2269. When the connecting rod pin 232 slides to the inflection point between the third groove 2263 and the fourth groove 2264 or the inflection point between the sixth groove 2266 and the fifth groove 2265, the moving frame 130 is blocked. At this time, the moving frame 130 is released, and the driving seat 220 moves upward under the action of the third spring 250, and the connecting rod pin 232 stops at the second inflection point 2268. At this time, the driving seat 220 stops stably at the current position. When the moving frame 130 and the driving seat 220 move downward, the inclined waist groove 224 drives the clamping plate 240 to rotate. When the lower part of the frame 133 passes over the hook 241, the hook 241 continues to rotate, and the hook 241 will pass over the inner side of the frame 133. When the position of the driving seat 220 is stable, the hook 241 hooks the lower part of the frame 133. At this time, the position of the moving frame 130 is fixed. Under the action of the No. 1 spring 160, the lower part of the lens mount 150 is positioned on the limit plates 111 on both sides. The moving frame 130 and the lens mount 150 are installed. When the moving frame 130 and the lens mount 150 need to be disassembled, press the moving frame 130 downward. Since the first inflection point 2267 and the second inflection point 2268 are staggered with each other, the guide shaft 132 will slide along the fifth groove 2265. When the connecting rod pin 232 slides to the inflection point of the fifth groove 2265 and the sixth groove 2266, the movable frame 130 is released, and the driving seat 220 moves upward under the action of the third spring 250. At this time, the connecting rod pin 232 slides along the sixth groove 2266 and the first groove 2261 to the third inflection point 2269, and the driving seat 220 moves upward. The hook 241 disengages from the movable frame 130, and the movable frame 130 and the lens seat 150 pop out under the action of the driving seat 220. The diamond-shaped driving groove 226 ensures that the connecting rod pin 232 can be smoothly raised and lowered without being blocked. The connecting device 200 cooperates with the moving frame 130 and the lens holder 150, so that when installing and removing the moving frame 130 and the lens holder 150, it is only necessary to simply push the moving frame 130, thereby improving the efficiency of replacing the protective lens of the laser welding machine.

[0040] When the device is not equipped with a protective lens, the sealing plates 120 on both sides will block the opening on the upper part of the outer frame 110 under the action of the second spring 170 to prevent contaminants from entering the inner part of the outer frame 110. When the protective lens is installed, the sealing plate 120 is first lifted up. After the sealing plate 120 is lifted up, an opening is formed in the middle of the sealing plates 120 on both sides. The movable frame 130 and the lens holder 150 are inserted into the opening formed in the middle of 120 and the upper opening of the limiting plate 111 and pressed downward. When the movable frame 130 is blocked, the movable frame 130 is released. The movable frame 130 will move upward a certain distance and stabilize at the current position. The movable frame 130 is hooked by the hook 241, and the lower part of the lens holder 150 is positioned on the limiting plate 111 under the action of the first spring 160, ensuring that the lens holder 150 The step block 131 at the lower part of the movable frame 130 and the opening of the limit plate 111 form a seal, and the sealing plate 120 is reset under the action of the second spring 170. The sealing plate 120 blocks the movable frame 130 on the outside to further form a seal, effectively preventing pollutants from entering the limit plate 111 during operation. When disassembling the movable frame 130 and the lens mount 150, the sealing plate 120 is pressed downward on the outside, and the sealing plate 120 drives the movable frame 130 and the lens mount 150 to move downward. When the movable frame 130 is blocked, the sealing plate 120 is released, and the movable frame 130 will be ejected. The movable frame 130 and the lens mount 150 can be directly pulled out. After the movable frame 130 and the lens mount 150 are pulled out, the sealing plate 120 closes the outlet of the limit plate 111 again.

[0041] When the protective lens is not installed in the device, the sealing plates 120 on both sides will block the opening of the upper part of the outer frame 110 under the action of the No. 2 spring 170 to prevent pollutants from entering the inner part of the outer frame 110. After the movable frame 130 and the lens holder 150 are installed, the step block 131 at the lower part of the movable frame 130 and the opening of the limit plate 111 form a seal, and the sealing plate 120 is reset under the action of the No. 2 spring 170. The sealing plate 120 blocks the movable frame 130 on the outside to further form a seal, which effectively prevents pollutants from entering the limit plate 111 during operation, ensures the cleanliness of the inner part of the outer frame 110, and prevents pollutants from contaminating the lens and causing damage to the lens. The clamping device 200, the movable frame 130, and the lens holder 150 cooperate with each other, with balanced force, stable operation, and accurate installation, so that when installing and disassembling the movable frame 130 and the lens holder 150, it is only necessary to simply push the movable frame 130, thereby improving the efficiency of replacing the protective lens of the laser welding machine.

Claims

1. A laser welding machine protective lens auxiliary operation device, characterized in that : It comprises an outer frame (110), the outer side of the outer frame (110) is slidably connected to two sealing plates (120), the two sealing plates (120) form a seal with the outer frame (110) on the outer side, the inner side of the outer frame (110) is slidably connected to a moving frame (130), the inner side of the moving frame (130) is slidably connected to a lens seat (150), a spring is connected between the moving frame (130) and the lens seat (150), the lower part of the outer frame (110) is connected to a clamping device (200), the clamping device (200) comprises a clamping seat (210), the inner side of the clamping seat (210) is slidably connected to a driving seat (220), a connecting rod (230) and a clamping plate (240) are connected between the clamping seat (210) and the driving seat (220), the clamping plate (240) controls the connection and disconnection of the moving frame (130), the lens holder (150) and the outer frame (110); the upper part of the outer frame (110) is provided with two left-right symmetrical support plates (113); a middle groove (114) is provided in the middle of the support plate (113) on each side; symmetrical side grooves (115) are provided on the front and rear sides of the support plate (113) on each side; the side grooves (115) are divided into oblique grooves (116) and straight grooves (117); a spring plate (118) is provided in the middle of the front and rear sides of the outer frame (110); a sealing plate (120) is provided on the inner side of the support plate (113) on each side; sealing plate pins (122) on both sides of the lower part of each sealing plate (120) are respectively slidably connected to the corresponding side grooves (115); each sealing plate (120) is provided with a sealing plate (122) on both sides of the lower part of each sealing plate (120) The guide strip (121) on the outside of the movable frame (120) is slidably connected to the corresponding middle groove (114); a No. 2 spring (170) is provided between the front and rear sides of each sealing plate (120) and the outer frame (110); the two sides of the No. 2 spring (170) are respectively connected to the corresponding spring plate (118) and the sealing plate pin (122); the side opening of the outer frame (110) is fixedly connected to the cover plate (180); the lower part of the movable frame (130) is provided with a step block (131); the lower end surface of the step block (131) is provided with two symmetrical guide shafts (132); the lower part of the movable frame (130) is provided with a rectangular frame (133); the end surface is provided with two symmetrical lens seat guide holes (151); the two sides of the lens seat (150) are provided with two symmetrical The lens seat (150) has two lens seat grooves (152), two lens seat guide holes (151) of the lens seat (150) pass through two guide shafts (132) from the bottom, the lens seat guide holes (151) are slidably connected to the guide shafts (132), the lower part of the guide shafts (132) is connected to the nut (190), two No. 1 springs (160) are provided between the movable frame (130) and the lens seat (150), the No. 1 springs (160) are sleeved on the outside of the guide shafts (132), the upper and lower sides of the No. 1 springs (160) respectively abut against the movable frame (130) and the lens seat (150), the two sides of the frame (133) pass through the lens seat grooves (152) on the two sides of the lens seat (150), and the lens seat (150) is slidably connected to the inner side of the outer frame (110).

2. The laser welding machine protective lens auxiliary operation device according to claim 1 is characterized in that The outer frame (110) is provided with a limit plate (111), a limit plate groove (112) is provided in the middle of the limit plate (111), both sides of the frame (133) pass through the limit plate groove (112), and the lens seat (150) is positioned on the limit plate (111); the clamping seat (210) is a box-shaped structure with a side opening, a bottom groove (212) is provided at the bottom of the cavity of the clamping seat (210), a hinge seat (213) is provided at the rear side of the bottom groove (212), a clamping seat spring pin (215) is provided at the lower part of the cavity of the clamping seat (210), and the clamping seat (210) is provided with a hinge seat (213). A card seat hole (214) is provided at the upper part of the cavity, a drive seat pin (221) is provided at the upper part of the drive seat (220), a drive seat spring pin (225) is provided at the lower part of the drive seat (220), the drive seat (220) is slidably connected to the cavity of the card seat (210), the drive seat pin (221) is slidably connected to the card seat hole (214), a third spring (250) is provided between the drive seat (220) and the card seat (210), and the third spring (250) is respectively fixedly connected to the card seat spring pin (215) and the drive seat spring pin (225) at the upper and lower sides.

3. The laser welding machine protective lens auxiliary operation device according to claim 2 is characterized in that The rear side of the driving seat (220) is provided with a rear seat (222), the middle of the rear seat (222) is provided with a rear seat groove (223), the side of the rear seat (222) is provided with an inclined waist groove (224), the upper part of the waist groove (224) is inclined toward the side of the clamping seat (210), the clamping plate (240) is a C-shaped structure, one side of the clamping plate (240) is provided with a hook (241), the other side of the clamping plate (240) is provided with a clamping plate pin shaft (242), and the inflection point of one side of the clamping plate pin shaft (242) is provided with a clamping plate hinge pin (243), the rear seat (222) passes through the bottom groove (212) of the clamping seat (210), the driving seat (220) is placed in the rear seat groove (223), the clamping plate hinge pin (243) is hinged to the hinge seat (213), and the clamping plate pin shaft (242) is slidably connected to the waist groove (224).

4. The laser welding machine protective lens auxiliary operation device according to claim 3 is characterized in that The end surface of the driving seat (220) is provided with a driving groove (226), the driving groove (226) is a diamond-shaped structure with a depression on the upper part, and the sides of the driving groove (226) are a first groove (2261), a second groove (2262), a third groove (2263), a fourth groove (2264), a fifth groove (2265), and a sixth groove (2266) in sequence, and a depression is formed at the connection between the fourth groove (2264) and the fifth groove (2265) and a first inflection point (2267) and a second inflection point (2268) are formed. ), the first inflection point (2267) and the second inflection point (2268) are staggered in the vertical direction, the first groove (2261) and the second groove (2262) form a third inflection point (2269), a connecting rod (230) is provided between the driving seat (220) and the clamping seat (210), a connecting rod hinge pin (231) at the lower part of the connecting rod (230) is hingedly connected to the hinge hole (216) at the lower end surface of the clamping seat (210), and a connecting rod pin shaft (232) at the upper part of the connecting rod (230) is slidably connected to the driving groove (226).

5. The laser welding machine protective lens auxiliary operation device according to claim 1, characterized in that The driving seat pin (221) on the upper part of the driving seat (220) is connected to the top plate (134) on the lower part of the frame (133), and the hook (241) on one side of the clamping plate (240) is connected to the lower part of the frame (133).

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