A welding platform with a protective structure

Abstract

The present invention provides a welding platform with a protection structure, which relates to the field of welding platforms and includes: a bottom plate; four vertical support columns are fixedly connected to the rear side of the upper end surface of the bottom plate, and a welding platform main body is fixedly connected to the upper ends of the four vertical support columns; a driving mechanism is arranged on the front side of the upper end surface of the bottom plate, and a moving seat is slidably connected to the upper part of the driving mechanism. Through the setting of the slag blowing mechanism, when it is necessary to clean the welding slag falling on the upper surface of the welding platform main body, the blower can be started to blow the welding slag on the upper surface of the welding platform main body into the slag collecting hopper. Moreover, during the cleaning process, manual cleaning is not required, so that the cleaning work of this welding platform is more convenient; it solves the problem that during the welding of workpieces on the traditional welding platform, a large amount of welding slag will fall on the upper surface of the welding platform, and when cleaning these welding slags, it is often manually cleaned with cleaning tools, resulting in the cleaning work of the welding platform being too troublesome.

Description

Technical Field

[0001] The present invention relates to the technical field of welding platforms, and particularly to a welding platform with a protection structure. Background Art

[0002] With the development of technology, welding robots have emerged. Compared with manual labor, the welding quality and efficiency of welding robots are much higher than those of manual workers. When welding steel structure workpieces, welding robots also need to cooperate with welding platforms. A welding platform is a reference tool specifically used for workpiece welding, usually made of high-strength cast iron, with a relatively high working surface hardness and good wear resistance.

[0003] However, during the process of welding workpieces on a traditional welding platform, a large amount of welding slag will fall on the upper surface of the welding platform. When cleaning these welding slags, it is often cleaned by workers holding cleaning tools manually, resulting in overly troublesome cleaning work for the welding platform. Moreover, when cleaning the welding slag on the upper surface of the traditional welding platform, it is necessary to stop the machine for cleaning, which affects the normal welding work and thus reduces the welding work efficiency. Summary of the Invention

[0004] An embodiment of the present disclosure relates to a welding platform with a protection structure. Through the setting of a slag blowing mechanism, when it is necessary to clean the welding slag falling on the upper surface of the welding platform main body, the blower can be started to blow the welding slag on the upper surface of the welding platform main body into the slag collection hopper, so as to quickly complete the cleaning work of the upper surface of the welding platform main body. Moreover, during the cleaning process, there is no need for workers to hold cleaning tools manually, making the cleaning work of this welding platform more convenient. In addition, there is no need to stop the machine for cleaning, avoiding affecting the normal welding work and thus improving the welding work efficiency.

[0005] In the first aspect of the present disclosure, a welding platform with a protection structure is provided, which specifically includes: a bottom plate; four vertical support columns are fixedly connected to the rear side of the upper end surface of the bottom plate, and a welding platform main body is fixedly connected to the upper ends of the four vertical support columns; a driving mechanism is provided on the front side of the upper end surface of the bottom plate, and a moving seat is slidably connected to the upper part of the driving mechanism; a hexagonal sliding column is fixedly installed on the front side of the welding platform main body, and a slag blowing mechanism is slidably connected to the outside of the hexagonal sliding column; a linkage assembly is installed on the upper end surface of the bottom plate at the bottom of the welding platform main body.

[0006] In at least some embodiments, a protective enclosure is installed at the edge of the upper end surface of the bottom plate, and an inlet and outlet are provided on the front end surface of the protective enclosure. A protective door is rotatably connected to the left side of the inlet and outlet on the front end surface of the protective enclosure, and a transparent glass is fixedly inlaid on the protective door; transparent glasses are inlaid on the left, right, and rear end surfaces of the protective enclosure; a slag collection box is placed on the rear side of the upper end surface of the bottom plate.

[0007] In at least some embodiments, a sliding sleeve is slidably connected to the outside of each of the vertical support columns, and a slag collecting hopper is fixedly connected between the four sliding sleeves; the rear side of the slag collecting hopper is distributed in a downward inclined shape, and the slag outlet at the rear end of the slag collecting hopper is located directly above the slag collecting box.

[0008] In at least some embodiments, four pulleys are rotatably connected to the bottom of the moving seat, and a robot mounting seat is installed on the upper end surface of the moving seat, and the robot mounting seat is used to mount a welding robot; a nut is fixedly connected to the bottom of the moving seat.

[0009] In at least some embodiments, the driving mechanism includes a slide rail, a vertical support plate, a driving motor, a driving screw, a first belt pulley and a guide rod. The number of the slide rails is two, and the two slide rails are fixedly installed on the front side of the upper end surface of the bottom plate, and the two slide rails are slidably connected to the four pulleys; vertical support plates are fixedly connected to the left and right ends of the two slide rails, and a driving motor is fixedly installed on the right end surface of the vertical support plate on the right side; the rotating shaft of the driving motor penetrates through the vertical support plate on the right side, and the left end of the rotating shaft of the driving motor is fixedly connected to the driving screw, and the driving screw is threadedly connected to the nut; the left end of the driving screw penetrates through the vertical support plate on the left side, and the left end of the driving screw is rotatably connected to the vertical support plate on the left side, and a first belt pulley is fixedly installed at the left end of the driving screw; two guide rods are fixedly connected to the upper sides of the opposite surfaces of the two vertical support plates, and the two guide rods are slidably connected to the moving seat.

[0010] In at least some embodiments, the slag blowing mechanism includes a blowing shell, an air inlet, an air inlet hose, a blower, a side air outlet, an air delivery pipe, a dust blowing pipe fitting, a blowing head, a sliding block, an L-shaped fixing rod and a rear blowing head. A sliding block is installed at the bottom of the blowing shell, and the sliding block is slidably connected to the outside of the hexagonal sliding column; a central air inlet is provided on the front end surface of the blowing shell, and an air inlet hose is connected to the front end of the air inlet, and the other end of the air inlet hose is connected to the air outlet of the blower, and the blower is installed on the upper end surface of the bottom plate; a side air outlet is provided on each of the left and right side surfaces of the blowing shell, and a dust delivery pipe is connected to the opposite end of each of the two side air outlets. The other end of each dust delivery pipe is connected to a dust blowing pipe fitting, and two blowing heads are provided at the bottom of each dust blowing pipe fitting, and the two blowing heads are respectively located directly above the two slide rails; two L-shaped fixing rods are fixedly connected to the front end surface of the sliding block, and the two L-shaped fixing rods are fixedly connected to the rear end surface of the moving seat; the rear side surface of the blowing shell is evenly provided with rear blowing heads, and the rear end of each rear blowing head is distributed in a downward inclined shape.

[0011] In at least some embodiments, the linkage assembly includes a crankshaft, a connecting rod, a second pulley, and a crankpin. The crankshaft is rotatably connected to the upper end surface of the bottom plate, and there are two crankpins on the crankshaft. A connecting rod is rotatably connected to the outside of each crankpin, and the upper ends of the two connecting rods are rotatably connected to the bottom of the slag collection hopper through a rotating shaft. The second pulley is fixedly installed at the left end of the crankshaft, and the second pulley is drivingly connected to the first pulley through a belt.

[0012] In at least some embodiments, when the crankshaft is in a rotating state, the two crankpins will drive the lower ends of the two connecting rods to rotate, and the upper ends of the two connecting rods will drive the slag collection hopper to move up and down reciprocally.

[0013] The present invention provides a welding platform with a protective structure, which has the following beneficial effects:

[0014] Through the arrangement of the slag blowing mechanism, when it is necessary to clean the welding slag on the upper surface of the main body of the welding platform, the fan can be started to blow the welding slag on the upper surface of the main body of the welding platform into the slag collection hopper, so as to quickly complete the cleaning work of the upper surface of the main body of the welding platform. Moreover, during the cleaning process, there is no need for manual cleaning with cleaning tools, which makes the cleaning work of this welding platform more convenient, and there is no need to stop the machine for cleaning, avoiding affecting the normal welding work, and thus improving the welding work efficiency.

[0015] Through the arrangement of the linkage assembly, during the rotation of the driving motor driving the driving screw and the first pulley, the linkage assembly can drive the slag collection hopper to move up and down reciprocally, so that the slag collection hopper shakes up and down reciprocally. Then, the welding slag collected inside the slag collection hopper will quickly move towards the slag outlet at the rear end of the slag collection hopper under the action of the up and down shaking force, and finally fall into the slag collection box, thus realizing automatic cleaning and collection work, making this welding platform more convenient to use.

[0016] Through the arrangement of two side air outlets, two air ducts, two dust blowing pipe fittings, and four blowing heads, when air enters the blowing shell, part of the air will also enter the two dust blowing pipe fittings through the two side air outlets and the two air ducts, and finally be dispersed to the upper parts of the two slide rails through the four blowing heads, so as to clean the sundries falling on the upper surfaces of the two slide rails, avoiding affecting the normal sliding of the pulleys, and thus making the moving seat move more smoothly when driving the robot mounting seat and the welding robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the drawings:

[0020] Figure 1 A structural schematic diagram showing the overall structure of the present application;

[0021] Figure 2 A structural schematic diagram showing the structure of the present application in a disassembled state;

[0022] Figure 3 A structural schematic diagram showing the welding platform main body, moving seat, driving mechanism, slag blowing mechanism and linkage assembly of the present application;

[0023] Figure 4 A structural schematic diagram showing the moving seat, driving mechanism and linkage assembly of the present application;

[0024] Figure 5 A structural schematic diagram showing the structure of the connecting rod and the connecting rod journal of the present application after disassembly;

[0025] Figure 6 A structural schematic diagram showing the welding platform main body, moving seat and slag blowing mechanism of the present application;

[0026] Figure 7 A structural schematic diagram showing the slag blowing mechanism of the present application.

[0027] List of reference numerals

[0028] 1, bottom plate; 101, protective enclosure; 102, inlet and outlet; 103, protective door; 104, transparent glass; 105, slag collection box;

[0029] 2, welding platform main body; 201, vertical support column; 202, sliding sleeve; 203, slag collection hopper; 204, hexagonal sliding column;

[0030] 3, moving seat; 301, pulley; 302, robot mounting seat; 303, nut;

[0031] 4, driving mechanism; 401, slide rail; 402, vertical support plate; 403, driving motor; 404, driving screw; 405, first belt pulley; 406, guide rod;

[0032] 5, slag blowing mechanism; 501, air blowing shell; 502, air inlet; 503, air inlet hose; 504, fan; 505, side air outlet; 506, air duct; 507, dust blowing pipe fitting; 508, air blowing head; 509, sliding block; 5010, L-shaped fixing rod; 5011, rear air blowing head;

[0033] 6, linkage assembly; 601, crankshaft; 602, connecting rod; 603, second belt pulley; 604, connecting rod journal. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments 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 some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] Embodiment 1: Please refer to Figures 1 to 7 :

[0036] The present invention provides a welding platform with a protection structure, including: a bottom plate 1; four vertical support columns 201 are fixedly connected to the rear side of the upper end surface of the bottom plate 1, and a welding platform main body 2 is fixedly connected to the upper ends of the four vertical support columns 201; a driving mechanism 4 is arranged on the front side of the upper end surface of the bottom plate 1, and a moving seat 3 is slidably connected to the upper part of the driving mechanism 4; a hexagonal sliding column 204 is fixedly installed on the front side of the welding platform main body 2, and a slag blowing mechanism 5 is slidably connected to the outside of the hexagonal sliding column 204; a linkage assembly 6 is installed on the upper end surface of the bottom plate 1 at the bottom of the welding platform main body 2; a protection enclosure 101 is installed at the edge of the upper end surface of the bottom plate 1, and an inlet / outlet 102 is opened on the front end surface of the protection enclosure 101. A protection door 103 is rotatably connected to the left side of the inlet / outlet 102 on the front end surface of the protection enclosure 101, and a transparent glass 104 is fixedly inlaid on the protection door 103; transparent glasses 104 are inlaid on the left, right, and rear end surfaces of the protection enclosure 101. Through the cooperation of the protection enclosure 101, the transparent glass 104, and the protection door 103, it is possible to prevent welding slag from splashing onto the staff during the welding process, thereby providing an effective protection effect for the staff; a slag collection box 105 is placed on the rear side of the upper end surface of the bottom plate 1.

[0037] A sliding sleeve 202 is slidably connected to the outside of each vertical support column 201, and a slag collection hopper 203 is fixedly connected between the four sliding sleeves 202; the rear side of the slag collection hopper 203 is distributed in a downward slope, and the slag outlet at the rear end of the slag collection hopper 203 is directly above the slag collection box 105.

[0038] Four pulleys 301 are rotatably connected to the bottom of the moving seat 3, and a robot mounting seat 302 is installed on the upper end surface of the moving seat 3 for installing a welding robot; a nut 303 is fixedly connected to the bottom of the moving seat 3.

[0039] The driving mechanism 4 includes a slide rail 401, a vertical support plate 402, a driving motor 403, a driving screw 404, a first pulley 405 and a guide rod 406. There are two slide rails 401, and the two slide rails 401 are fixedly installed on the front side of the upper end surface of the bottom plate 1, and the two slide rails 401 are slidably connected to the four pulleys 301; vertical support plates 402 are fixedly connected to both the left and right ends of the two slide rails 401, and a driving motor 403 is fixedly installed on the right end surface of the right vertical support plate 402; the rotating shaft of the driving motor 403 penetrates through the right vertical support plate 402, and the left end of the rotating shaft of the driving motor 403 is fixedly connected to the driving screw 404, and the driving screw 404 is threadedly connected to the nut 303; the left end of the driving screw 404 penetrates through the left vertical support plate 402, and the left end of the driving screw 404 is rotatably connected to the left vertical support plate 402, and the first pulley 405 is fixedly installed at the left end of the driving screw 404; two guide rods 406 are fixedly connected to the upper sides of the opposite surfaces of the two vertical support plates 402, and the two guide rods 406 are slidably connected to the moving seat 3.

[0040] The slag blowing mechanism 5 includes a blowing shell 501, an air inlet 502, an air inlet hose 503, a blower 504, side air outlets 505, air ducts 506, dust blowing pipe fittings 507, blowing heads 508, sliding blocks 509, L-shaped fixing rods 5010 and rear blowing heads 5011. A sliding block 509 is installed at the bottom of the blowing shell 501, and the sliding block 509 is slidably connected to the outside of the hexagonal sliding column 204; an air inlet 502 is provided in the middle of the front end surface of the blowing shell 501, and an air inlet hose 503 is connected to the front end of the air inlet 502, and the other end of the air inlet hose 503 is connected to the air outlet of the blower 504, and the blower 504 is installed on the upper end surface of the bottom plate 1; one side air outlet 505 is provided on each of the left and right side surfaces of the blowing shell 501, and a dust blowing pipe fitting 507 is connected to the opposite end of each of the two side air outlets 505, and two blowing heads 508 are provided at the bottom of each dust blowing pipe fitting 507, and the two blowing heads 508 are respectively located directly above the two slide rails 401; two L-shaped fixing rods 5010 are fixedly connected to the front end surface of the sliding block 509, and the two L-shaped fixing rods 5010 are fixedly connected to the rear end surface of the moving seat 3; rear blowing heads 5011 are evenly provided on the rear side surface of the blowing shell 501, and the rear end of each rear blowing head 5011 is distributed in a downward inclined shape.

[0041] Embodiment 2, on the basis of Embodiment 1, as Figures 2 to 5As shown, the linkage assembly 6 includes a crankshaft 601, a connecting rod 602, a second pulley 603 and a connecting rod journal 604. The crankshaft 601 is rotatably connected to the upper end surface of the base plate 1, and two connecting rod journals 604 are provided on the crankshaft 601, and each connecting rod journal 604 is rotatably connected to a connecting rod 602 on the outside, and the upper ends of the two connecting rods 602 are rotatably connected to the bottom of the slag bucket 203 through a rotating shaft; a second pulley 603 is fixedly installed on the left end of the crankshaft 601, and the second pulley 603 is transmission-connected to the first pulley 405 through a belt.

[0042] When the crankshaft 601 is in a rotating state, the lower ends of the two connecting rods 602 will rotate through the two connecting rod journals 604, and the upper ends of the two connecting rods 602 will move the slag collecting bucket 203 up and down.

[0043] The working principle of this embodiment is as follows: when in use, the workpiece is first fixed to the top of the welding platform body 2 by a positioning fixture, and then the welding robot installed on the upper part of the robot mounting seat 302 performs welding on the workpiece; then, the driving motor 403 is started to rotate the driving screw 404, and then the nut 303 moves the moving seat 3, the robot mounting seat 302 and the welding robot left and right under the action of the thread, thereby increasing the welding range of the welding robot.

[0044] During the welding process, welding slag falls onto the upper surface of the welding platform body 2, and part of the welding slag directly falls into the slag collecting bucket 203 through the through holes on the welding platform body 2; when it is necessary to clean the welding slag on the upper surface of the welding platform body 2, the fan 504 can be started to allow the air flow to enter the blowing shell 501 through the air inlet hose 503, and then the air flow is blown to the upper surface of the welding platform body 2 through the rear blowing head 5011 on the rear side of the blowing shell 501. Under the action of the air flow, the welding slag on the upper surface of the welding platform body 2 is blown into the slag collecting bucket 203, thereby quickly completing the cleaning of the upper surface of the welding platform body 2.

[0045] When the driving motor 403 drives the driving screw 404 to rotate, it will drive the first pulley 405 to rotate, and then drive the second pulley 603 to rotate through the belt, and then the second pulley 603 drives the crankshaft 601 to rotate. When the crankshaft 601 rotates, it will drive the lower ends of the two connecting rods 602 to rotate through the two connecting rod journals 604, and the upper ends of the two connecting rods 602 drive the slag collecting bucket 203 to move back and forth up and down, so that the slag collecting bucket 203 will swing back and forth up and down, and then the welding slag collected inside the slag collecting bucket 203 will move quickly to the slag outlet at the rear end of the slag collecting bucket 203 under the action of the up and down shaking force, and finally fall into the slag collecting box 105.

[0046] During the left - right movement of the moving seat 3, the L - shaped fixing rod 5010 will also drive the sliding block 509, the blowing shell 501 and the rear blowing head 5011 to move left - right, thereby improving the blowing effect of the rear blowing head 5011 and enabling the upper surface of the welding platform main body 2 to be cleaned more thoroughly.

[0047] Through the arrangement of two side air outlets 505, two air ducts 506, two dust - blowing pipe fittings 507 and four blowing heads 508, when air enters the blowing shell 501, part of the air will enter the two dust - blowing pipe fittings 507 through the two side air outlets 505 and the two air ducts 506, and finally be dispersed to the upper part of the two slide rails 401 through the four blowing heads 508, so as to clean the sundries falling on the upper surface of the two slide rails 401 and prevent them from affecting the normal sliding of the pulley 301.

[0048] In this article, the following points need attention:

[0049] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0050] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0051] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A welding platform with a protective structure, comprising: A bottom plate (1); four vertical support columns (201) are fixedly connected to the rear side of the upper end surface of the bottom plate (1), and the upper ends of the four vertical support columns (201) are fixedly connected to a welding platform body (2); it is characterized in that a driving mechanism (4) is provided on the front side of the upper end surface of the bottom plate (1), and a moving seat (3) is slidably connected to the upper part of the driving mechanism (4); a hexagonal sliding column (204) is fixedly installed on the front side of the welding platform body (2), and a slag blowing mechanism (5) is slidably connected to the outside of the hexagonal sliding column (204); a linkage assembly (6) is installed on the upper end surface of the bottom plate (1) at the bottom of the welding platform body (2); a slag collecting box (105) is placed on the rear side of the upper end surface of the bottom plate (1); Each of the vertical support columns (201) is slidably connected to a sliding sleeve (202) on the outside, and a slag collecting bucket (203) is fixedly connected between the four sliding sleeves (202); the rear side of the slag collecting bucket (203) is distributed in a downwardly inclined shape, and the slag outlet at the rear end of the slag collecting bucket (203) is located directly above the slag collecting box (105); The bottom of the movable seat (3) is rotatably connected to four pulleys (301), and the upper end surface of the movable seat (3) is mounted with a robot mounting seat (302), the robot mounting seat (302) being used to mount a welding robot; the bottom of the movable seat (3) is fixedly connected to a nut (303); The driving mechanism (4) comprises a slide rail (401), a vertical support plate (402), a driving motor (403), a driving screw (404), a first pulley (405) and a guide rod (406); the number of the slide rails (401) is two, and the two slide rails (401) are fixedly mounted on the front side of the upper end surface of the bottom plate (1), and the two slide rails (401) are slidably connected to the four pulleys (301); the left and right ends of the two slide rails (401) are fixedly connected to the vertical support plates (402), and the right end surface of the right vertical support plate (402) is fixedly mounted with the driving motor (403); the rotating shaft of the driving motor (403) passes through A right vertical support plate (402) is passed through, and the left end of the rotating shaft of the driving motor (403) is fixedly connected with a driving screw rod (404), and the driving screw rod (404) is threadedly connected to the nut (303); the left end of the driving screw rod (404) passes through a left vertical support plate (402), and the left end of the driving screw rod (404) is rotationally connected to a left vertical support plate (402), and a first pulley (405) is fixedly installed on the left end of the driving screw rod (404); two guide rods (406) are fixedly connected to the upper sides of the opposite surfaces of the two vertical support plates (402), and the two guide rods (406) are slidably connected to the moving seat (3); The linkage assembly (6) comprises a crankshaft (601), a connecting rod (602), a second pulley (603) and a connecting rod journal (604); the crankshaft (601) is rotatably connected to the upper end surface of the base plate (1); two connecting rod journals (604) are provided on the crankshaft (601); each connecting rod journal (604) is rotatably connected to the outside of a connecting rod (602); the upper ends of the two connecting rods (602) are rotatably connected to the bottom of the slag collecting bucket (203) via a rotating shaft; a second pulley (603) is fixedly mounted on the left end of the crankshaft (601), and the second pulley (603) is transmission-connected to the first pulley (405) via a belt.

2. The welding platform with a protective structure according to claim 1, characterized in that: A protective enclosure (101) is installed at the edge of the upper end surface of the bottom plate (1), and an entrance (102) is provided on the front end surface of the protective enclosure (101); a protective door (103) is rotatably connected to the front end surface of the protective enclosure (101) on the left side of the entrance (102), and transparent glass (104) is fixedly inlaid on the protective door (103); transparent glass (104) is inlaid on the left, right and rear end surfaces of the protective enclosure (101).

3. The welding platform with a protective structure according to claim 1, characterized in that: The slag blowing mechanism (5) comprises a blowing shell (501), an air inlet (502), an air inlet hose (503), a fan (504), a side air outlet (505), an air delivery pipe (506), a dust blowing pipe (507), a blowing head (508), a sliding block (509), an L-shaped fixing rod (5010) and a rear blowing head (5011); a sliding block (509) is installed at the bottom of the blowing shell (501), and the sliding block (509) is slidably connected to the outside of the hexagonal sliding column (204); an air inlet (502) is provided in the middle of the front end surface of the blowing shell (501), and an air inlet hose (503) is connected to the front end of the air inlet (502); the other end of the air inlet hose (503) is connected to the air outlet of the fan (504), and the fan (504) is installed on the upper end surface of the bottom plate (1). The left and right sides of the blowing shell (501) are each provided with a side air outlet (505), and the opposite ends of the two side air outlets (505) are connected to an air supply pipe (506), and the other end of each air supply pipe (506) is connected to a dust blowing pipe (507), and the bottom of each dust blowing pipe (507) is provided with two blowing heads (508), and the two blowing heads (508) are respectively located directly above the two slide rails (401); the front end surface of the sliding block (509) is fixedly connected to two L-shaped fixing rods (5010), and the two L-shaped fixing rods (5010) are fixedly connected to the rear end surface of the movable seat (3); the rear side surface of the blowing shell (501) is evenly provided with rear blowing heads (5011), and the rear end of each rear blowing head (5011) is distributed in a downwardly inclined shape.

4. The welding platform with a protective structure according to claim 1, characterized in that: When the crankshaft (601) is in a rotating state, the lower ends of the two connecting rods (602) are driven to rotate via the two connecting rod journals (604), and the upper ends of the two connecting rods (602) are driven to reciprocate up and down with the slag collecting bucket (203).

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