High-precision laser welding device integrated with visual auxiliary system

By designing an automated anti-collision protection mechanism in the welding device, the problem of manual operation in the prior art is solved, effective anti-collision protection of the laser welding gun is achieved, and operation efficiency and welding accuracy are improved.

CN119566592AInactive Publication Date: 2025-03-07SHENZHEN WANHEYI PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202411985233.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When loading and unloading welding parts, existing welding devices need to manually switch the protective structure to protect the laser welding gun, which is troublesome and inconvenient to operate.

Method used

A high-precision laser welding device integrated with a vision assistance system is designed. Through the anti-collision protection mechanism composed of a mountain-shaped blocking frame and an upright protective plate that is connected everywhere, the power transmission of the vertical drive shaft and the horizontal support slide shaft and the spring rebound and pushing effect are used to realize the automatic opening and closing of the anti-collision protection mechanism.

Benefits of technology

It greatly reduces the chance of laser welding torch being damaged by welding sheets during loading and unloading, simplifies the operation process, and eliminates the steps of manual switching anti-collision protection mechanism, making it easier to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a high-precision laser welding device integrated with a visual auxiliary system, and relates to the technical field of welding devices.The high-precision laser welding device comprises an operation table, a laser welding gun sliding transversely is installed in the middle space above a horizontal bearing table plate, and two vertical protection plates are symmetrically welded to the middle positions of the top sides of the two ends of the horizontal bearing table plate; two E-shaped blocking frames are mounted on the side, facing the laser welding gun, of the vertical protection plate in a vertically symmetrical and sliding manner; four connecting rods are symmetrically and rotationally connected between each vertical driving shaft and the four epsilon-shaped blocking frames on the corresponding side; two Z-shaped force transmission plates are symmetrically welded to the middle section of the vertical driving shaft. Power transmission of the vertical driving shaft is matched with the rebound pushing effect of springs on the two transverse supporting sliding shafts for use, the four E-shaped blocking frames can be automatically driven to be opened and closed through reciprocating sliding driving force generated when a laser welding gun conducts welding on a welded plate, and compared with the prior art, operation and use are easy and convenient, and time is saved.
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Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and in particular to a high-precision laser welding device with an integrated visual assistance system. Background Art

[0002] The high-precision laser welding device with integrated visual assistance system is designed to improve the accuracy and automation of welding, ensuring welding quality and efficiency. This device can achieve real-time monitoring and precise control of the welding process by combining advanced laser technology and visual recognition technology.

[0003] In order to prevent the laser welding gun which is directly exposed from collision damage when the welded parts are transported, transferred and loaded before and after welding, the existing welding devices are mostly equipped with a protective structure to block and prevent collision of the laser welding gun. However, the structural optimization design of driving the protective structure to open and close is not reasonable, resulting in that each time the protective structure is needed to implement anti-collision protection for the laser welding gun before and after loading and unloading of the welded parts, additional manual effort is required to open and close the protective structure, which is troublesome and inconvenient to operate. Summary of the invention

[0004] In view of this, the present invention provides a high-precision laser welding device with an integrated visual assistance system to solve the problem that each time the laser welding gun needs to be protected against collision by a protective structure before and after loading and unloading the welded parts, additional manual effort is required to open and close the protective structure, which makes the operation more cumbersome and inconvenient.

[0005] The technical solution proposed by the present invention is: a high-precision laser welding device with an integrated visual assistance system, specifically comprising: an operating table, the operating table as a whole is composed of a horizontal load-bearing table with a rectangular structure at the top and two U-shaped support frames symmetrically welded to the bottom of both ends of the horizontal load-bearing table;

[0006] A transversely sliding laser welding gun is installed in the middle space above the horizontal bearing platform, and two vertical protective plates are symmetrically welded at the middle positions of the top sides of the two end parts of the horizontal bearing platform; two mountain-shaped blocking frames are symmetrically installed on the side of the vertical protective plate facing the laser welding gun for upward and downward sliding, and a transverse slide groove with an opening at the head end and a blocking structure at the tail end is opened in the middle position of the vertical protective plate; a transversely sliding vertical driving shaft is installed in the middle position of the space between the two vertical protective plates on each side, and four connecting rods are symmetrically rotatably connected between each vertical driving shaft and the four mountain-shaped blocking frames on the corresponding side; two Z-shaped force transmission plates are symmetrically welded at the middle section of the vertical driving shaft, and two slide plates are symmetrically welded at the head ends of the two Z-shaped force transmission plates, and a cross-bracing sliding shaft is welded on the side of the slide plate away from the laser welding gun; the two slide plates on each vertical driving shaft are slidably matched with the two cross-bracing sliding grooves on the corresponding side; the cross-bracing sliding shaft is located in the cross-bracing sliding groove and penetrates and slides with the tail end blocking part of the cross-bracing sliding groove through a spring;

[0007] After welding is completed, the laser welding gun is slid and placed on the left or right end of the horizontal supporting platform, inserted into the space between the two vertical protective plates on the corresponding side and abutted against the vertical driving shaft on the corresponding side, and the laser welding gun continues to slide and push when abutting against the vertical driving shaft on the corresponding side, driving the four mountain-shaped blocking frames on the corresponding side to slide close to each other and dock together, blocking the laser welding gun between the two vertical protective plates on the corresponding side to implement anti-collision protection.

[0008] Furthermore,

[0009] The upper and lower halves of the vertical protective plate are symmetrically penetrated with two transverse bracing strip grooves, and the connecting rod is swivelled and penetrated to cooperate with the transverse bracing strip grooves.

[0010] Furthermore,

[0011] The four U-shaped blocking frames on the two vertical protective plates on each side are symmetrically arranged, and the head end of the connecting rod is rotatably connected to the middle section of the vertical supporting side rod of the U-shaped blocking frame.

[0012] Furthermore,

[0013] The tail ends of the connecting rods at four locations on each side are rotatably connected to the upper and lower end portions of the vertical driving shaft on the corresponding side.

[0014] Furthermore,

[0015] The first ends of the three longitudinal support bars on the two vertically symmetrical mountain-shaped blocking frames in the four mountain-shaped blocking frames on each side are provided with plug holes, and the first ends of the three longitudinal support bars on the other two mountain-shaped blocking frames in the four mountain-shaped blocking frames on each side are formed with short plug columns;

[0016] The short plug post is mated with the socket.

[0017] Furthermore,

[0018] Two reciprocating screws arranged laterally are symmetrically and rotatably installed below the two long sides of the horizontal bearing platform, and the head ends of the reciprocating screws are both equipped with sprockets;

[0019] A longitudinal support mounting plate is welded to the middle position of the inner part of the U-shaped support frame located at the head end side of the reciprocating screw, a motor is fixedly mounted on the middle section of the longitudinal support mounting plate, a sprocket is sleeved on the head end of the motor shaft, and a chain is tensioned and sleeved between the three sprockets.

[0020] Furthermore,

[0021] Two L-shaped slide bars are symmetrically fixed on both sides of the laser welding gun, and two reciprocating screws penetrate and mesh with the bottom ends of the two L-shaped slide bars for transmission.

[0022] Furthermore,

[0023] A threaded mounting ring is formed on the vertical support rod section of one of the L-shaped sliding rods, and a visual camera is screwed and fixed inside the threaded mounting ring. The visual camera is communicated with an external display device via a redundant soft data cable, and the visual camera and the external display device are connected together to form an integrated visual assistance system.

[0024] The present invention provides a high-precision laser welding device with an integrated visual assistance system, which has the following beneficial effects:

[0025] 1. The four-way combined mountain-shaped blocking frame and the two vertical protective plates together form a relatively closed mechanism for anti-collision protection of the laser welding gun. This mechanism can provide relatively comprehensive and effective impact protection for the laser welding gun, greatly reducing the probability of the laser welding gun being damaged by the welding plate during the loading and unloading process.

[0026] 2. Through the power transmission of the vertical driving shaft and in conjunction with the rebound and pushing effect of the springs on the two horizontal support sliding shafts, the four U-shaped blocking frames can utilize the reciprocating sliding driving force of the laser welding gun when welding the welding plates to automatically drive the opening and closing. Compared with the existing technology, it can save the trouble of additional manual effort to open and close the four U-shaped blocking frames in sequence by steps when the anti-collision protection mechanism is used to implement anti-collision protection for the laser welding gun before and after each loading and unloading of the welding plates. The operation is relatively simple and time-saving.

[0027] 3. The visual camera is used to capture the weld formed by the laser welding gun on the butt gap between two welding plates in real time, and the visual camera transmits the captured and monitored welding image to an external display device for real-time display and for real-time viewing and inspection by the staff. This makes it convenient for the staff who monitor the welding quality to detect the poor quality of the weld in time, and to promptly and effectively repair the poor weld, which is beneficial to indirectly ensure the welding accuracy of the device to the welding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0029] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0030] In the attached picture:

[0031] Figure 1 The overall structural schematic diagram of the present invention is shown;

[0032] Figure 2 A schematic diagram of the motor installation position of the present invention is shown;

[0033] Figure 3 A schematic diagram of the structure of the vertical protection plate of the present invention is shown;

[0034] Figure 4 A schematic diagram showing the installation position of the vertical drive shaft of the present invention is shown;

[0035] Figure 5 A schematic diagram of a disassembled state of a mountain-shaped blocking frame of the present invention is shown;

[0036] Figure 6 A schematic diagram of the vertical drive shaft structure of the present invention is shown;

[0037] Figure 7 The schematic diagram of the structure of the laser welding gun of the present invention is shown;

[0038] Figure 8 A schematic diagram of the installation position of the visual camera of the present invention is shown.

[0039] List of reference numerals:

[0040] 1. Operation table; 101. Longitudinal support mounting plate;

[0041] 2. Electric control box;

[0042] 3. Reciprocating screw;

[0043] 4. Welding plates;

[0044] 5. Laser welding gun; 501. L-shaped slide bar;

[0045] 6. Vertical protective plate; 601. Horizontal slide groove; 602. Horizontal support strip groove; 603. Vertical drive shaft; 604. Z-shaped force transmission plate; 605. Slide plate; 6051. Horizontal support slide shaft;

[0046] 7. Mountain-shaped blocking frame; 701. Connecting rod; 702. Plug hole; 703. Short plug column;

[0047] 8. Motor;

[0048] 9. Visual camera. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0050] Please refer to Figures 1 to 8 ;

[0051] Embodiment 1:

[0052] The present invention proposes a high-precision laser welding device with an integrated visual assistance system, comprising: an operating table 1, the operating table 1 as a whole is composed of a horizontal bearing table with a rectangular structure at the top and two U-shaped support frames symmetrically welded to the bottom of both ends of the horizontal bearing table;

[0053] A transversely sliding laser welding gun 5 is installed in the middle space above the horizontal bearing platform, and two vertical protective plates 6 are symmetrically welded at the middle positions of the top sides of the two end parts of the horizontal bearing platform; two mountain-shaped blocking frames 7 are symmetrically installed on the side of the vertical protective plate 6 facing the laser welding gun 5 for sliding upward and downward movement, and a transverse sliding groove 601 with an opening at the front end and a blocking structure at the rear end is provided in the middle position of the vertical protective plate 6; a transversely sliding vertical driving shaft 603 is installed in the middle position of the space between the two vertical protective plates 6 on each side, and each vertical driving shaft 603 is connected to the four mountain blocks on the corresponding side. There are four connecting rods 701 symmetrically connected between the Z-shaped blocking frames 7 for rotation; two Z-shaped force transmission plates 604 are symmetrically welded to the middle section of the vertical driving shaft 603, and two slide plates 605 are symmetrically welded to the head ends of the two Z-shaped force transmission plates 604, and a horizontal support sliding shaft 6051 is welded on the side of the slide plate 605 away from the laser welding gun 5; the two slide plates 605 on each vertical driving shaft 603 are slidably matched with the two horizontal slide grooves 601 on the corresponding side; the horizontal support sliding shaft 6051 is located in the horizontal slide groove 601 and penetrates and slides with the tail end blocking part of the horizontal slide groove 601 through a spring;

[0054] When the laser welding gun 5 is slidably placed on the left or right end of the horizontal bearing table after welding is completed, it is inserted into the space between the two vertical protective plates 6 on the corresponding side and abuts against the vertical driving shaft 603 on the corresponding side, and the laser welding gun 5 continues to slide and push when abutting against the vertical driving shaft 603 on the corresponding side, driving the four mountain-shaped blocking frames 7 on the corresponding side to slide close to each other and dock together, blocking the laser welding gun 5 between the two vertical protective plates 6 on the corresponding side to implement anti-collision protection; two transversely arranged reciprocating screws 3 are symmetrically installed and rotated below the two long sides of the horizontal bearing table; the horizontal bearing table is used to carry and place two welding plates 4 that are docked together, and the welding head at the bottom of the laser welding gun 5 is directly opposite and close to the butt weld between the two welding plates 4, and under the rotation and propulsion drive of the two reciprocating screws 3, the laser welding gun 5 slides straight along the butt weld to weld the two welding plates 4;

[0055] When the laser welding gun 5 is slidably inserted into the space between the two corresponding vertical protective plates 6 after welding is completed, the two vertical protective plates 6 can block and shield the laser welding gun 5 to implement blocking protection against the longitudinal impact from the welding plate 4, so as to avoid the laser welding gun 5 lacking necessary impact protection when the welding plate 4 is replaced and loaded and unloaded, and being easily damaged by the impact of the welding plate 4. In the process of replacing the welding plate 4 with loading and unloading, the laser welding gun 5 can be provided with better anti-collision protection. In the above process, when the laser welding gun 5 is slidably built into the space between the two vertical protective plates 6, the four mountain-shaped blocking frames on the two vertical protective plates 6 7 can be slidably butted together to block and close the opening between the two vertical protection plates 6 on the side facing the welding plate 4. At this time, the mountain-shaped blocking frame 7 that is butted at four places can block and intercept the lateral impact from the welding plate 4, and implement lateral impact protection for the laser welding gun 5; the mountain-shaped blocking frame 7 that is butt-jointed at four places and the two vertical protection plates 6 together form a relatively closed mechanism for implementing anti-collision protection for the laser welding gun 5, which can implement relatively comprehensive and effective impact protection for the laser welding gun 5, and greatly reduce the probability of the laser welding gun 5 being damaged by the collision of the welding plate 4 during the process of loading and unloading the welding plate 4;

[0056] The four U-shaped blocking frames 7, four connecting rods 701 and the vertical drive shaft 603 on each side are connected together to form four crank slider mechanisms, through which the horizontally reciprocating sliding vertical drive shaft 603 can drive the four U-shaped blocking frames 7 to slide towards each other to open and close; when the laser welding gun 5 is slid into the space between the two vertical protective plates 6 and disengaged from the interval space between the four U-shaped blocking frames 7, the laser welding gun 5 can continuously slide and contact with the vertical drive shaft 603 and push to drive the vertical drive shaft 603 to slide away from the U-shaped blocking frame 7, thereby driving and controlling the four U-shaped blocking frames 7 to slide close to each other and dock together; and when the laser welding gun 5 slides outward and resets to disengage from the space between the two vertical protective plates 6 to weld the reloaded and replaced welding plate 4, the laser welding gun 5 will gradually slide and separate from the vertical drive shaft 603. When 5 is slidably separated from the vertical driving shaft 603, the two compressed springs on the two horizontal support sliding shafts 6051 lose the inner sliding pushing holding force from the laser welding gun 5, and can rebound and push to drive the two horizontal support sliding shafts 6051 and the vertical driving shaft 603 to slide and reset, driving and controlling the four mountain-shaped blocking frames 7 to automatically slide away from each other and open. In this way, through the power transmission of the vertical driving shaft 603 and the use of the rebound pushing effect of the springs on the two horizontal support sliding shafts 6051, the four mountain-shaped blocking frames 7 can be automatically driven to open and close by utilizing the reciprocating sliding driving force when the laser welding gun 5 is welding the welding plate 4. Compared with the prior art, it can save the trouble of additional manual effort to open and close the four mountain-shaped blocking frames 7 in sequence step by step when the anti-collision protection mechanism is used to implement anti-collision protection for the laser welding gun 5 before and after each loading and unloading of the welding plate 4. The operation is relatively simple and time-saving.

[0057] Preferably,

[0058] Two horizontal support strip grooves 602 are symmetrically opened in the upper and lower halves of the vertical protection plate 6, and the connecting rod 701 is rotatably connected with the horizontal support strip groove 602.

[0059] Preferably,

[0060] The four U-shaped blocking frames 7 on the two vertical protective plates 6 on each side are symmetrically arranged, and the head end of the connecting rod 701 is rotatably connected to the middle section of the vertical supporting side rod of the U-shaped blocking frame 7.

[0061] Preferably,

[0062] The tail ends of the four connecting rods 701 on each side are rotatably connected to the upper and lower end portions of the vertical driving shaft 603 on the corresponding side.

[0063] Preferably,

[0064] The head ends of the three longitudinal support blocking rods on the two symmetrical shaped blocking frames 7 of each side are provided with plug holes 702, and the head ends of the three longitudinal support blocking rods on the other two shaped blocking frames 7 of each side are provided with short plug posts 703; the short plug posts 703 are plugged into the plug holes 702;

[0065] The short plug post 703 and the plug hole 702 are plugged in and matched to ensure the support and interception strength when the four-way mountain-shaped blocking frames 7 are connected and combined.

[0066] Preferably,

[0067] The head ends of the two reciprocating screws 3 are both equipped with sprockets;

[0068] A longitudinal support mounting plate 101 is welded to the middle position of the inner part of the U-shaped support frame located at the head end side of the reciprocating screw 3, and a motor 8 is fixedly mounted on the middle section of the longitudinal support mounting plate 101. A sprocket is mounted on the head end of the rotating shaft of the motor 8, and a chain is tensioned between the three sprockets.

[0069] Preferably,

[0070] Two L-shaped slide bars 501 are symmetrically fixed on both sides of the laser welding gun 5, and the two reciprocating screws 3 are correspondingly penetrated and meshed with the bottom ends of the two L-shaped slide bars 501 for transmission;

[0071] When the laser welding gun 5 slides between the two vertical protection plates 6, the horizontal support rod sections of the two L-shaped slide bars 501 on it correspond to the two horizontal slide grooves 601 for sliding cooperation; through the sprocket and the two reciprocating screws 3, the motor 8 can rotate forward and reverse to implement reciprocating propulsion drive on the two L-shaped slide bars 501 and the laser welding gun 5;

[0072] It is worth noting that when the laser welding gun 5 is pushed forward and driven to slide inward between the two vertical protective plates 6 to implement anti-collision protection, the motor 8 needs to be manually stopped to stop the laser welding gun 5 from remaining between the two vertical protective plates 6 to implement continuous and effective anti-collision protection.

[0073] Based on the first embodiment, the second embodiment:

[0074] A threaded mounting ring is formed on the vertical support rod section of an L-shaped slide bar 501, and a visual camera 9 is screwed and fixed inside the threaded mounting ring. The visual camera 9 is connected to the external display device through a redundant soft data line, and the visual camera 9 and the external display device are connected together to form an integrated visual assistance system; the laser welding gun 5 is connected to the host through a redundant flexible optical cable to transmit laser energy, and the laser welding gun 5 is also connected to the cooling unit on the host through a redundant flexible conduit; an electric control box 2 is hoisted at the bottom of one end of the horizontal bearing table, and electrical components for controlling the forward and reverse rotation and start and stop of the motor 8 are installed inside the electric control box 2;

[0075] The visual camera 9 is used to capture in real time the weld formed by the laser welding gun 5 on the butt gap between two welding plates 4, and the visual camera 9 transmits the captured and monitored welding image to an external display device for real-time display and for real-time viewing and inspection by the staff. This facilitates the staff who monitor the welding quality to promptly detect and discover poor weld quality, and promptly and effectively repair the poor weld, which is beneficial to indirectly ensure the welding accuracy of the device to the welding plate 4.

[0076] The working principle of this embodiment is as follows: the horizontal supporting table is used to support and place two welding plates 4 butt-jointed together, the welding head at the bottom of the laser welding gun 5 is vertically opposite and close to the butt weld between the two welding plates 4, and under the rotation and propulsion drive of the two reciprocating screws 3, the laser welding gun 5 slides straightly along the butt weld to weld the two welding plates 4, and through the sprocket and the two reciprocating screws 3, the motor 8 can rotate forward and reverse to implement reciprocating propulsion drive for the two L-shaped slide bars 501 and the laser welding gun 5.

[0077] When the laser welding gun 5 is slidably inserted into the space between the two corresponding vertical protection plates 6 after welding is completed, the two vertical protection plates 6 can block and shield the laser welding gun 5 to implement blocking and protection against the longitudinal impact from the welding plate 4. When the laser welding gun 5 is slidably built into the space between the two vertical protection plates 6, the four mountain-shaped blocking frames 7 on the two vertical protection plates 6 can be slidably docked and combined together to block and close the opening between the two vertical protection plates 6 on the side of the welding plate 4. At this time, the four-way docked mountain-shaped blocking frames 7 can block and intercept the lateral impact from the welding plate 4, and implement lateral impact protection for the laser welding gun 5;

[0078] The four U-shaped blocking frames 7, the four connecting rods 701 and the vertical drive shaft 603 on each side are connected together to form four crank slider mechanisms. Through the four crank slider mechanisms, the horizontal reciprocating sliding vertical drive shaft 603 can drive the four U-shaped blocking frames 7 to slide towards each other to open and close. When the laser welding gun 5 slides into the space between the two vertical protective plates 6 and is separated from the interval space between the four U-shaped blocking frames 7, the laser welding gun 5 can continue to slide and contact with the vertical drive shaft 603 and push to drive the vertical drive shaft 603 to slide away from the U-shaped blocking frame 7, thereby driving and controlling the four U-shaped blocking frames. The blocking frames 7 slide close to each other and dock together, and when the laser welding gun 5 slides outward to reset and escapes from the space between the two vertical protection plates 6 to weld the reloaded and replaced welding plate 4, the laser welding gun 5 will gradually slide and separate from the vertical drive shaft 603. When the laser welding gun 5 slides and separates from the vertical drive shaft 603, the two compressed springs on the two horizontal support sliding shafts 6051 lose the internal sliding push holding force from the laser welding gun 5, and the rebound push drives the two horizontal support sliding shafts 6051 and the vertical drive shaft 603 to slide and reset, driving and controlling the four mountain-shaped blocking frames 7 to automatically slide away from each other and open;

[0079] The visual camera 9 is used to capture in real time the weld formed by the laser welding gun 5 on the butt gap between two welding plates 4, and the visual camera 9 transmits the captured and monitored welding image to an external display device for real-time display and for real-time viewing and inspection by the staff, which facilitates the staff who monitor the welding quality to promptly detect and discover the poor quality of the weld, and promptly and effectively implement rescue and repair on the poor weld.

[0080] In this article, there are a few points to note:

[0081] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0082] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0083] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-precision laser welding device with an integrated visual assistance system, comprising: An operating table (1), the operating table (1) as a whole is composed of a horizontal load-bearing table plate with a rectangular structure at the top and two U-shaped support frames symmetrically welded to the bottom of both ends of the horizontal load-bearing table plate; The invention is characterized in that a transversely sliding laser welding gun (5) is installed in the middle space above the horizontal supporting platform, and two vertical protective plates (6) are symmetrically welded at the middle position of the top side of the two end parts of the horizontal supporting platform; two mountain-shaped blocking frames (7) are symmetrically installed on the side of the vertical protective plate (6) facing the laser welding gun (5) in an up-down sliding manner, and a transverse sliding groove (601) with an opening at the front end and a blocking structure at the rear end is opened in the middle position of the vertical protective plate (6); a transversely sliding vertical driving shaft (603) is installed in the middle position of the space between the two vertical protective plates (6) on each side, and each vertical driving shaft (603) is connected to the four mountain-shaped frames on the corresponding side. Four connecting rods (701) are symmetrically connected to the blocking frames (7) for rotation; two Z-shaped force transmission plates (604) are symmetrically welded to the middle section of the vertical drive shaft (603); two slide plates (605) are symmetrically welded to the head ends of the two Z-shaped force transmission plates (604); a horizontal support sliding shaft (6051) is welded to the side of the slide plate (605) away from the laser welding gun (5); the two slide plates (605) on each vertical drive shaft (603) are slidably matched with the two horizontal slide grooves (601) on the corresponding side; the horizontal support sliding shaft (6051) is located in the horizontal slide groove (601) and penetrates and slides with the tail end blocking part of the horizontal slide groove (601) through a spring; When the laser welding gun (5) is slidably placed on the left or right end of the horizontal support plate after welding is completed, it is inserted into the space between the two vertical protective plates (6) on the corresponding side and abuts against the vertical drive shaft (603) on the corresponding side. When the laser welding gun (5) abuts against the vertical drive shaft (603) on the corresponding side, it continues to slide and push, driving the four mountain-shaped blocking frames (7) on the corresponding side to slide close to each other and dock together, thereby blocking the laser welding gun (5) between the two vertical protective plates (6) on the corresponding side to implement anti-collision protection.

2. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: Two transverse bracing strip grooves (602) are symmetrically opened and penetrated in the upper and lower halves of the vertical protection plate (6), and the connecting rod (701) is rotatably penetrated and matched with the transverse bracing strip grooves (602).

3. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: The four U-shaped blocking frames (7) on the two vertical protective plates (6) on each side are symmetrically arranged, and the head end of the connecting rod (701) is rotatably connected to the middle section of the vertical supporting side rod of the U-shaped blocking frame (7).

4. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: The tail ends of the connecting rods (701) at four locations on each side are rotatably connected to the upper and lower ends of the vertical drive shaft (603) on the corresponding side.

5. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: The head ends of the three longitudinal support blocking rods on two of the four symmetrical shaped blocking frames (7) on each side are provided with insertion holes (702), and the head ends of the three longitudinal support blocking rods on the other two of the four shaped blocking frames (7) on each side are provided with short plug posts (703); The short plug post (703) is plugged into and matched with the plug hole (702).

6. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: Two reciprocating screws (3) arranged laterally are symmetrically rotatably mounted below the two long sides of the horizontal bearing platform, and the head ends of the two reciprocating screws (3) are both equipped with sprockets; A longitudinal support mounting plate (101) is welded to the middle position of the inner portion of the U-shaped support frame located at the head end side of the reciprocating screw (3), a motor (8) is fixedly mounted to the middle section of the longitudinal support mounting plate (101), a sprocket is sleeved on the head end of the motor (8) shaft, and a chain is tensionedly sleeved between the three sprockets.

7. The high-precision laser welding device with integrated visual assistance system according to claim 1, characterized in that: Two L-shaped slide bars (501) are symmetrically fixed on both sides of the laser welding gun (5), and the two reciprocating screws (3) penetrate and mesh with the bottom ends of the two L-shaped slide bars (501) for transmission.

8. The high-precision laser welding device with integrated visual assistance system according to claim 7, characterized in that: A threaded mounting ring is formed on a vertical support rod section of the L-shaped sliding rod (501), and a visual camera (9) is screwed and fixed inside the threaded mounting ring. The visual camera (9) is connected to an external display device for communication via a redundant soft data cable, and the visual camera (9) and the external display device are connected together to form an integrated visual assistance system.